diff options
Diffstat (limited to 'drivers/net/ethernet/marvell')
135 files changed, 134870 insertions, 0 deletions
diff --git a/drivers/net/ethernet/marvell/Kconfig b/drivers/net/ethernet/marvell/Kconfig new file mode 100644 index 000000000..f58a1c014 --- /dev/null +++ b/drivers/net/ethernet/marvell/Kconfig @@ -0,0 +1,184 @@ +# SPDX-License-Identifier: GPL-2.0-only +# +# Marvell device configuration +# + +config NET_VENDOR_MARVELL + bool "Marvell devices" + default y + depends on PCI || CPU_PXA168 || PPC32 || PLAT_ORION || INET || COMPILE_TEST + help + If you have a network (Ethernet) card belonging to this class, say Y. + + Note that the answer to this question doesn't directly affect the + kernel: saying N will just cause the configurator to skip all + the questions about Marvell devices. If you say Y, you will be + asked for your specific card in the following questions. + +if NET_VENDOR_MARVELL + +config MV643XX_ETH + tristate "Marvell Discovery (643XX) and Orion ethernet support" + depends on PPC32 || PLAT_ORION || COMPILE_TEST + depends on INET + select PHYLIB + select MVMDIO + help + This driver supports the gigabit ethernet MACs in the + Marvell Discovery PPC/MIPS chipset family (MV643XX) and + in the Marvell Orion ARM SoC family. + + Some boards that use the Discovery chipset are the Momenco + Ocelot C and Jaguar ATX and Pegasos II. + +config MVMDIO + tristate "Marvell MDIO interface support" + depends on HAS_IOMEM + select PHYLIB + help + This driver supports the MDIO interface found in the network + interface units of the Marvell EBU SoCs (Kirkwood, Orion5x, + Dove, Armada 370 and Armada XP). + + This driver is used by the MV643XX_ETH and MVNETA drivers. + +config MVNETA_BM_ENABLE + tristate "Marvell Armada 38x/XP network interface BM support" + depends on MVNETA + depends on !64BIT + help + This driver supports auxiliary block of the network + interface units in the Marvell ARMADA XP and ARMADA 38x SoC + family, which is called buffer manager. + + This driver, when enabled, strictly cooperates with mvneta + driver and is common for all network ports of the devices, + even for Armada 370 SoC, which doesn't support hardware + buffer management. + +config MVNETA + tristate "Marvell Armada 370/38x/XP/37xx network interface support" + depends on ARCH_MVEBU || COMPILE_TEST + select MVMDIO + select PHYLINK + select PAGE_POOL + select PAGE_POOL_STATS + help + This driver supports the network interface units in the + Marvell ARMADA XP, ARMADA 370, ARMADA 38x and + ARMADA 37xx SoC family. + + Note that this driver is distinct from the mv643xx_eth + driver, which should be used for the older Marvell SoCs + (Dove, Orion, Discovery, Kirkwood). + +config MVNETA_BM + tristate + depends on !64BIT + default y if MVNETA=y && MVNETA_BM_ENABLE!=n + default MVNETA_BM_ENABLE + select HWBM + select GENERIC_ALLOCATOR + help + MVNETA_BM must not be 'm' if MVNETA=y, so this symbol ensures + that all dependencies are met. + +config MVPP2 + tristate "Marvell Armada 375/7K/8K network interface support" + depends on ARCH_MVEBU || COMPILE_TEST + select MVMDIO + select PHYLINK + select PAGE_POOL + help + This driver supports the network interface units in the + Marvell ARMADA 375, 7K and 8K SoCs. + +config MVPP2_PTP + bool "Marvell Armada 8K Enable PTP support" + depends on (PTP_1588_CLOCK = y && MVPP2 = y) || \ + (PTP_1588_CLOCK && MVPP2 = m) + +config PXA168_ETH + tristate "Marvell pxa168 ethernet support" + depends on HAS_IOMEM + depends on CPU_PXA168 || ARCH_BERLIN || COMPILE_TEST + select PHYLIB + help + This driver supports the pxa168 Ethernet ports. + + To compile this driver as a module, choose M here. The module + will be called pxa168_eth. + +config SKGE + tristate "Marvell Yukon Gigabit Ethernet support" + depends on PCI + select CRC32 + help + This driver support the Marvell Yukon or SysKonnect SK-98xx/SK-95xx + and related Gigabit Ethernet adapters. It is a new smaller driver + with better performance and more complete ethtool support. + + It does not support the link failover and network management + features that "portable" vendor supplied sk98lin driver does. + + This driver supports adapters based on the original Yukon chipset: + Marvell 88E8001, Belkin F5D5005, CNet GigaCard, DLink DGE-530T, + Linksys EG1032/EG1064, 3Com 3C940/3C940B, SysKonnect SK-9871/9872. + + It does not support the newer Yukon2 chipset: a separate driver, + sky2, is provided for these adapters. + + To compile this driver as a module, choose M here: the module + will be called skge. This is recommended. + +config SKGE_DEBUG + bool "Debugging interface" + depends on SKGE && DEBUG_FS + help + This option adds the ability to dump driver state for debugging. + The file /sys/kernel/debug/skge/ethX displays the state of the internal + transmit and receive rings. + + If unsure, say N. + +config SKGE_GENESIS + bool "Support for older SysKonnect Genesis boards" + depends on SKGE + help + This enables support for the older and uncommon SysKonnect Genesis + chips, which support MII via an external transceiver, instead of + an internal one. Disabling this option will save some memory + by making code smaller. If unsure say Y. + +config SKY2 + tristate "Marvell Yukon 2 support" + depends on PCI + select CRC32 + help + This driver supports Gigabit Ethernet adapters based on the + Marvell Yukon 2 chipset: + Marvell 88E8021/88E8022/88E8035/88E8036/88E8038/88E8050/88E8052/ + 88E8053/88E8055/88E8061/88E8062, SysKonnect SK-9E21D/SK-9S21 + + There is companion driver for the older Marvell Yukon and + SysKonnect Genesis based adapters: skge. + + To compile this driver as a module, choose M here: the module + will be called sky2. This is recommended. + +config SKY2_DEBUG + bool "Debugging interface" + depends on SKY2 && DEBUG_FS + help + This option adds the ability to dump driver state for debugging. + The file /sys/kernel/debug/sky2/ethX displays the state of the internal + transmit and receive rings. + + If unsure, say N. + + +source "drivers/net/ethernet/marvell/octeontx2/Kconfig" +source "drivers/net/ethernet/marvell/octeon_ep/Kconfig" +source "drivers/net/ethernet/marvell/prestera/Kconfig" + +endif # NET_VENDOR_MARVELL diff --git a/drivers/net/ethernet/marvell/Makefile b/drivers/net/ethernet/marvell/Makefile new file mode 100644 index 000000000..ceba4aa4f --- /dev/null +++ b/drivers/net/ethernet/marvell/Makefile @@ -0,0 +1,16 @@ +# SPDX-License-Identifier: GPL-2.0 +# +# Makefile for the Marvell device drivers. +# + +obj-$(CONFIG_MVMDIO) += mvmdio.o +obj-$(CONFIG_MV643XX_ETH) += mv643xx_eth.o +obj-$(CONFIG_MVNETA_BM) += mvneta_bm.o +obj-$(CONFIG_MVNETA) += mvneta.o +obj-$(CONFIG_MVPP2) += mvpp2/ +obj-$(CONFIG_PXA168_ETH) += pxa168_eth.o +obj-$(CONFIG_SKGE) += skge.o +obj-$(CONFIG_SKY2) += sky2.o +obj-y += octeon_ep/ +obj-y += octeontx2/ +obj-y += prestera/ diff --git a/drivers/net/ethernet/marvell/mv643xx_eth.c b/drivers/net/ethernet/marvell/mv643xx_eth.c new file mode 100644 index 000000000..8941f69d9 --- /dev/null +++ b/drivers/net/ethernet/marvell/mv643xx_eth.c @@ -0,0 +1,3308 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * Driver for Marvell Discovery (MV643XX) and Marvell Orion ethernet ports + * Copyright (C) 2002 Matthew Dharm <mdharm@momenco.com> + * + * Based on the 64360 driver from: + * Copyright (C) 2002 Rabeeh Khoury <rabeeh@galileo.co.il> + * Rabeeh Khoury <rabeeh@marvell.com> + * + * Copyright (C) 2003 PMC-Sierra, Inc., + * written by Manish Lachwani + * + * Copyright (C) 2003 Ralf Baechle <ralf@linux-mips.org> + * + * Copyright (C) 2004-2006 MontaVista Software, Inc. + * Dale Farnsworth <dale@farnsworth.org> + * + * Copyright (C) 2004 Steven J. Hill <sjhill1@rockwellcollins.com> + * <sjhill@realitydiluted.com> + * + * Copyright (C) 2007-2008 Marvell Semiconductor + * Lennert Buytenhek <buytenh@marvell.com> + * + * Copyright (C) 2013 Michael Stapelberg <michael@stapelberg.de> + */ + +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + +#include <linux/init.h> +#include <linux/dma-mapping.h> +#include <linux/in.h> +#include <linux/ip.h> +#include <net/tso.h> +#include <linux/tcp.h> +#include <linux/udp.h> +#include <linux/etherdevice.h> +#include <linux/delay.h> +#include <linux/ethtool.h> +#include <linux/platform_device.h> +#include <linux/module.h> +#include <linux/kernel.h> +#include <linux/spinlock.h> +#include <linux/workqueue.h> +#include <linux/phy.h> +#include <linux/mv643xx_eth.h> +#include <linux/io.h> +#include <linux/interrupt.h> +#include <linux/types.h> +#include <linux/slab.h> +#include <linux/clk.h> +#include <linux/of.h> +#include <linux/of_irq.h> +#include <linux/of_net.h> +#include <linux/of_mdio.h> + +static char mv643xx_eth_driver_name[] = "mv643xx_eth"; +static char mv643xx_eth_driver_version[] = "1.4"; + + +/* + * Registers shared between all ports. + */ +#define PHY_ADDR 0x0000 +#define WINDOW_BASE(w) (0x0200 + ((w) << 3)) +#define WINDOW_SIZE(w) (0x0204 + ((w) << 3)) +#define WINDOW_REMAP_HIGH(w) (0x0280 + ((w) << 2)) +#define WINDOW_BAR_ENABLE 0x0290 +#define WINDOW_PROTECT(w) (0x0294 + ((w) << 4)) + +/* + * Main per-port registers. These live at offset 0x0400 for + * port #0, 0x0800 for port #1, and 0x0c00 for port #2. + */ +#define PORT_CONFIG 0x0000 +#define UNICAST_PROMISCUOUS_MODE 0x00000001 +#define PORT_CONFIG_EXT 0x0004 +#define MAC_ADDR_LOW 0x0014 +#define MAC_ADDR_HIGH 0x0018 +#define SDMA_CONFIG 0x001c +#define TX_BURST_SIZE_16_64BIT 0x01000000 +#define TX_BURST_SIZE_4_64BIT 0x00800000 +#define BLM_TX_NO_SWAP 0x00000020 +#define BLM_RX_NO_SWAP 0x00000010 +#define RX_BURST_SIZE_16_64BIT 0x00000008 +#define RX_BURST_SIZE_4_64BIT 0x00000004 +#define PORT_SERIAL_CONTROL 0x003c +#define SET_MII_SPEED_TO_100 0x01000000 +#define SET_GMII_SPEED_TO_1000 0x00800000 +#define SET_FULL_DUPLEX_MODE 0x00200000 +#define MAX_RX_PACKET_9700BYTE 0x000a0000 +#define DISABLE_AUTO_NEG_SPEED_GMII 0x00002000 +#define DO_NOT_FORCE_LINK_FAIL 0x00000400 +#define SERIAL_PORT_CONTROL_RESERVED 0x00000200 +#define DISABLE_AUTO_NEG_FOR_FLOW_CTRL 0x00000008 +#define DISABLE_AUTO_NEG_FOR_DUPLEX 0x00000004 +#define FORCE_LINK_PASS 0x00000002 +#define SERIAL_PORT_ENABLE 0x00000001 +#define PORT_STATUS 0x0044 +#define TX_FIFO_EMPTY 0x00000400 +#define TX_IN_PROGRESS 0x00000080 +#define PORT_SPEED_MASK 0x00000030 +#define PORT_SPEED_1000 0x00000010 +#define PORT_SPEED_100 0x00000020 +#define PORT_SPEED_10 0x00000000 +#define FLOW_CONTROL_ENABLED 0x00000008 +#define FULL_DUPLEX 0x00000004 +#define LINK_UP 0x00000002 +#define TXQ_COMMAND 0x0048 +#define TXQ_FIX_PRIO_CONF 0x004c +#define PORT_SERIAL_CONTROL1 0x004c +#define CLK125_BYPASS_EN 0x00000010 +#define TX_BW_RATE 0x0050 +#define TX_BW_MTU 0x0058 +#define TX_BW_BURST 0x005c +#define INT_CAUSE 0x0060 +#define INT_TX_END 0x07f80000 +#define INT_TX_END_0 0x00080000 +#define INT_RX 0x000003fc +#define INT_RX_0 0x00000004 +#define INT_EXT 0x00000002 +#define INT_CAUSE_EXT 0x0064 +#define INT_EXT_LINK_PHY 0x00110000 +#define INT_EXT_TX 0x000000ff +#define INT_MASK 0x0068 +#define INT_MASK_EXT 0x006c +#define TX_FIFO_URGENT_THRESHOLD 0x0074 +#define RX_DISCARD_FRAME_CNT 0x0084 +#define RX_OVERRUN_FRAME_CNT 0x0088 +#define TXQ_FIX_PRIO_CONF_MOVED 0x00dc +#define TX_BW_RATE_MOVED 0x00e0 +#define TX_BW_MTU_MOVED 0x00e8 +#define TX_BW_BURST_MOVED 0x00ec +#define RXQ_CURRENT_DESC_PTR(q) (0x020c + ((q) << 4)) +#define RXQ_COMMAND 0x0280 +#define TXQ_CURRENT_DESC_PTR(q) (0x02c0 + ((q) << 2)) +#define TXQ_BW_TOKENS(q) (0x0300 + ((q) << 4)) +#define TXQ_BW_CONF(q) (0x0304 + ((q) << 4)) +#define TXQ_BW_WRR_CONF(q) (0x0308 + ((q) << 4)) + +/* + * Misc per-port registers. + */ +#define MIB_COUNTERS(p) (0x1000 + ((p) << 7)) +#define SPECIAL_MCAST_TABLE(p) (0x1400 + ((p) << 10)) +#define OTHER_MCAST_TABLE(p) (0x1500 + ((p) << 10)) +#define UNICAST_TABLE(p) (0x1600 + ((p) << 10)) + + +/* + * SDMA configuration register default value. + */ +#if defined(__BIG_ENDIAN) +#define PORT_SDMA_CONFIG_DEFAULT_VALUE \ + (RX_BURST_SIZE_4_64BIT | \ + TX_BURST_SIZE_4_64BIT) +#elif defined(__LITTLE_ENDIAN) +#define PORT_SDMA_CONFIG_DEFAULT_VALUE \ + (RX_BURST_SIZE_4_64BIT | \ + BLM_RX_NO_SWAP | \ + BLM_TX_NO_SWAP | \ + TX_BURST_SIZE_4_64BIT) +#else +#error One of __BIG_ENDIAN or __LITTLE_ENDIAN must be defined +#endif + + +/* + * Misc definitions. + */ +#define DEFAULT_RX_QUEUE_SIZE 128 +#define DEFAULT_TX_QUEUE_SIZE 512 +#define SKB_DMA_REALIGN ((PAGE_SIZE - NET_SKB_PAD) % SMP_CACHE_BYTES) + +/* Max number of allowed TCP segments for software TSO */ +#define MV643XX_MAX_TSO_SEGS 100 +#define MV643XX_MAX_SKB_DESCS (MV643XX_MAX_TSO_SEGS * 2 + MAX_SKB_FRAGS) + +#define IS_TSO_HEADER(txq, addr) \ + ((addr >= txq->tso_hdrs_dma) && \ + (addr < txq->tso_hdrs_dma + txq->tx_ring_size * TSO_HEADER_SIZE)) + +#define DESC_DMA_MAP_SINGLE 0 +#define DESC_DMA_MAP_PAGE 1 + +/* + * RX/TX descriptors. + */ +#if defined(__BIG_ENDIAN) +struct rx_desc { + u16 byte_cnt; /* Descriptor buffer byte count */ + u16 buf_size; /* Buffer size */ + u32 cmd_sts; /* Descriptor command status */ + u32 next_desc_ptr; /* Next descriptor pointer */ + u32 buf_ptr; /* Descriptor buffer pointer */ +}; + +struct tx_desc { + u16 byte_cnt; /* buffer byte count */ + u16 l4i_chk; /* CPU provided TCP checksum */ + u32 cmd_sts; /* Command/status field */ + u32 next_desc_ptr; /* Pointer to next descriptor */ + u32 buf_ptr; /* pointer to buffer for this descriptor*/ +}; +#elif defined(__LITTLE_ENDIAN) +struct rx_desc { + u32 cmd_sts; /* Descriptor command status */ + u16 buf_size; /* Buffer size */ + u16 byte_cnt; /* Descriptor buffer byte count */ + u32 buf_ptr; /* Descriptor buffer pointer */ + u32 next_desc_ptr; /* Next descriptor pointer */ +}; + +struct tx_desc { + u32 cmd_sts; /* Command/status field */ + u16 l4i_chk; /* CPU provided TCP checksum */ + u16 byte_cnt; /* buffer byte count */ + u32 buf_ptr; /* pointer to buffer for this descriptor*/ + u32 next_desc_ptr; /* Pointer to next descriptor */ +}; +#else +#error One of __BIG_ENDIAN or __LITTLE_ENDIAN must be defined +#endif + +/* RX & TX descriptor command */ +#define BUFFER_OWNED_BY_DMA 0x80000000 + +/* RX & TX descriptor status */ +#define ERROR_SUMMARY 0x00000001 + +/* RX descriptor status */ +#define LAYER_4_CHECKSUM_OK 0x40000000 +#define RX_ENABLE_INTERRUPT 0x20000000 +#define RX_FIRST_DESC 0x08000000 +#define RX_LAST_DESC 0x04000000 +#define RX_IP_HDR_OK 0x02000000 +#define RX_PKT_IS_IPV4 0x01000000 +#define RX_PKT_IS_ETHERNETV2 0x00800000 +#define RX_PKT_LAYER4_TYPE_MASK 0x00600000 +#define RX_PKT_LAYER4_TYPE_TCP_IPV4 0x00000000 +#define RX_PKT_IS_VLAN_TAGGED 0x00080000 + +/* TX descriptor command */ +#define TX_ENABLE_INTERRUPT 0x00800000 +#define GEN_CRC 0x00400000 +#define TX_FIRST_DESC 0x00200000 +#define TX_LAST_DESC 0x00100000 +#define ZERO_PADDING 0x00080000 +#define GEN_IP_V4_CHECKSUM 0x00040000 +#define GEN_TCP_UDP_CHECKSUM 0x00020000 +#define UDP_FRAME 0x00010000 +#define MAC_HDR_EXTRA_4_BYTES 0x00008000 +#define GEN_TCP_UDP_CHK_FULL 0x00000400 +#define MAC_HDR_EXTRA_8_BYTES 0x00000200 + +#define TX_IHL_SHIFT 11 + + +/* global *******************************************************************/ +struct mv643xx_eth_shared_private { + /* + * Ethernet controller base address. + */ + void __iomem *base; + + /* + * Per-port MBUS window access register value. + */ + u32 win_protect; + + /* + * Hardware-specific parameters. + */ + int extended_rx_coal_limit; + int tx_bw_control; + int tx_csum_limit; + struct clk *clk; +}; + +#define TX_BW_CONTROL_ABSENT 0 +#define TX_BW_CONTROL_OLD_LAYOUT 1 +#define TX_BW_CONTROL_NEW_LAYOUT 2 + +static int mv643xx_eth_open(struct net_device *dev); +static int mv643xx_eth_stop(struct net_device *dev); + + +/* per-port *****************************************************************/ +struct mib_counters { + u64 good_octets_received; + u32 bad_octets_received; + u32 internal_mac_transmit_err; + u32 good_frames_received; + u32 bad_frames_received; + u32 broadcast_frames_received; + u32 multicast_frames_received; + u32 frames_64_octets; + u32 frames_65_to_127_octets; + u32 frames_128_to_255_octets; + u32 frames_256_to_511_octets; + u32 frames_512_to_1023_octets; + u32 frames_1024_to_max_octets; + u64 good_octets_sent; + u32 good_frames_sent; + u32 excessive_collision; + u32 multicast_frames_sent; + u32 broadcast_frames_sent; + u32 unrec_mac_control_received; + u32 fc_sent; + u32 good_fc_received; + u32 bad_fc_received; + u32 undersize_received; + u32 fragments_received; + u32 oversize_received; + u32 jabber_received; + u32 mac_receive_error; + u32 bad_crc_event; + u32 collision; + u32 late_collision; + /* Non MIB hardware counters */ + u32 rx_discard; + u32 rx_overrun; +}; + +struct rx_queue { + int index; + + int rx_ring_size; + + int rx_desc_count; + int rx_curr_desc; + int rx_used_desc; + + struct rx_desc *rx_desc_area; + dma_addr_t rx_desc_dma; + int rx_desc_area_size; + struct sk_buff **rx_skb; +}; + +struct tx_queue { + int index; + + int tx_ring_size; + + int tx_desc_count; + int tx_curr_desc; + int tx_used_desc; + + int tx_stop_threshold; + int tx_wake_threshold; + + char *tso_hdrs; + dma_addr_t tso_hdrs_dma; + + struct tx_desc *tx_desc_area; + char *tx_desc_mapping; /* array to track the type of the dma mapping */ + dma_addr_t tx_desc_dma; + int tx_desc_area_size; + + struct sk_buff_head tx_skb; + + unsigned long tx_packets; + unsigned long tx_bytes; + unsigned long tx_dropped; +}; + +struct mv643xx_eth_private { + struct mv643xx_eth_shared_private *shared; + void __iomem *base; + int port_num; + + struct net_device *dev; + + struct timer_list mib_counters_timer; + spinlock_t mib_counters_lock; + struct mib_counters mib_counters; + + struct work_struct tx_timeout_task; + + struct napi_struct napi; + u32 int_mask; + u8 oom; + u8 work_link; + u8 work_tx; + u8 work_tx_end; + u8 work_rx; + u8 work_rx_refill; + + int skb_size; + + /* + * RX state. + */ + int rx_ring_size; + unsigned long rx_desc_sram_addr; + int rx_desc_sram_size; + int rxq_count; + struct timer_list rx_oom; + struct rx_queue rxq[8]; + + /* + * TX state. + */ + int tx_ring_size; + unsigned long tx_desc_sram_addr; + int tx_desc_sram_size; + int txq_count; + struct tx_queue txq[8]; + + /* + * Hardware-specific parameters. + */ + struct clk *clk; + unsigned int t_clk; +}; + + +/* port register accessors **************************************************/ +static inline u32 rdl(struct mv643xx_eth_private *mp, int offset) +{ + return readl(mp->shared->base + offset); +} + +static inline u32 rdlp(struct mv643xx_eth_private *mp, int offset) +{ + return readl(mp->base + offset); +} + +static inline void wrl(struct mv643xx_eth_private *mp, int offset, u32 data) +{ + writel(data, mp->shared->base + offset); +} + +static inline void wrlp(struct mv643xx_eth_private *mp, int offset, u32 data) +{ + writel(data, mp->base + offset); +} + + +/* rxq/txq helper functions *************************************************/ +static struct mv643xx_eth_private *rxq_to_mp(struct rx_queue *rxq) +{ + return container_of(rxq, struct mv643xx_eth_private, rxq[rxq->index]); +} + +static struct mv643xx_eth_private *txq_to_mp(struct tx_queue *txq) +{ + return container_of(txq, struct mv643xx_eth_private, txq[txq->index]); +} + +static void rxq_enable(struct rx_queue *rxq) +{ + struct mv643xx_eth_private *mp = rxq_to_mp(rxq); + wrlp(mp, RXQ_COMMAND, 1 << rxq->index); +} + +static void rxq_disable(struct rx_queue *rxq) +{ + struct mv643xx_eth_private *mp = rxq_to_mp(rxq); + u8 mask = 1 << rxq->index; + + wrlp(mp, RXQ_COMMAND, mask << 8); + while (rdlp(mp, RXQ_COMMAND) & mask) + udelay(10); +} + +static void txq_reset_hw_ptr(struct tx_queue *txq) +{ + struct mv643xx_eth_private *mp = txq_to_mp(txq); + u32 addr; + + addr = (u32)txq->tx_desc_dma; + addr += txq->tx_curr_desc * sizeof(struct tx_desc); + wrlp(mp, TXQ_CURRENT_DESC_PTR(txq->index), addr); +} + +static void txq_enable(struct tx_queue *txq) +{ + struct mv643xx_eth_private *mp = txq_to_mp(txq); + wrlp(mp, TXQ_COMMAND, 1 << txq->index); +} + +static void txq_disable(struct tx_queue *txq) +{ + struct mv643xx_eth_private *mp = txq_to_mp(txq); + u8 mask = 1 << txq->index; + + wrlp(mp, TXQ_COMMAND, mask << 8); + while (rdlp(mp, TXQ_COMMAND) & mask) + udelay(10); +} + +static void txq_maybe_wake(struct tx_queue *txq) +{ + struct mv643xx_eth_private *mp = txq_to_mp(txq); + struct netdev_queue *nq = netdev_get_tx_queue(mp->dev, txq->index); + + if (netif_tx_queue_stopped(nq)) { + __netif_tx_lock(nq, smp_processor_id()); + if (txq->tx_desc_count <= txq->tx_wake_threshold) + netif_tx_wake_queue(nq); + __netif_tx_unlock(nq); + } +} + +static int rxq_process(struct rx_queue *rxq, int budget) +{ + struct mv643xx_eth_private *mp = rxq_to_mp(rxq); + struct net_device_stats *stats = &mp->dev->stats; + int rx; + + rx = 0; + while (rx < budget && rxq->rx_desc_count) { + struct rx_desc *rx_desc; + unsigned int cmd_sts; + struct sk_buff *skb; + u16 byte_cnt; + + rx_desc = &rxq->rx_desc_area[rxq->rx_curr_desc]; + + cmd_sts = rx_desc->cmd_sts; + if (cmd_sts & BUFFER_OWNED_BY_DMA) + break; + rmb(); + + skb = rxq->rx_skb[rxq->rx_curr_desc]; + rxq->rx_skb[rxq->rx_curr_desc] = NULL; + + rxq->rx_curr_desc++; + if (rxq->rx_curr_desc == rxq->rx_ring_size) + rxq->rx_curr_desc = 0; + + dma_unmap_single(mp->dev->dev.parent, rx_desc->buf_ptr, + rx_desc->buf_size, DMA_FROM_DEVICE); + rxq->rx_desc_count--; + rx++; + + mp->work_rx_refill |= 1 << rxq->index; + + byte_cnt = rx_desc->byte_cnt; + + /* + * Update statistics. + * + * Note that the descriptor byte count includes 2 dummy + * bytes automatically inserted by the hardware at the + * start of the packet (which we don't count), and a 4 + * byte CRC at the end of the packet (which we do count). + */ + stats->rx_packets++; + stats->rx_bytes += byte_cnt - 2; + + /* + * In case we received a packet without first / last bits + * on, or the error summary bit is set, the packet needs + * to be dropped. + */ + if ((cmd_sts & (RX_FIRST_DESC | RX_LAST_DESC | ERROR_SUMMARY)) + != (RX_FIRST_DESC | RX_LAST_DESC)) + goto err; + + /* + * The -4 is for the CRC in the trailer of the + * received packet + */ + skb_put(skb, byte_cnt - 2 - 4); + + if (cmd_sts & LAYER_4_CHECKSUM_OK) + skb->ip_summed = CHECKSUM_UNNECESSARY; + skb->protocol = eth_type_trans(skb, mp->dev); + + napi_gro_receive(&mp->napi, skb); + + continue; + +err: + stats->rx_dropped++; + + if ((cmd_sts & (RX_FIRST_DESC | RX_LAST_DESC)) != + (RX_FIRST_DESC | RX_LAST_DESC)) { + if (net_ratelimit()) + netdev_err(mp->dev, + "received packet spanning multiple descriptors\n"); + } + + if (cmd_sts & ERROR_SUMMARY) + stats->rx_errors++; + + dev_kfree_skb(skb); + } + + if (rx < budget) + mp->work_rx &= ~(1 << rxq->index); + + return rx; +} + +static int rxq_refill(struct rx_queue *rxq, int budget) +{ + struct mv643xx_eth_private *mp = rxq_to_mp(rxq); + int refilled; + + refilled = 0; + while (refilled < budget && rxq->rx_desc_count < rxq->rx_ring_size) { + struct sk_buff *skb; + int rx; + struct rx_desc *rx_desc; + int size; + + skb = netdev_alloc_skb(mp->dev, mp->skb_size); + + if (skb == NULL) { + mp->oom = 1; + goto oom; + } + + if (SKB_DMA_REALIGN) + skb_reserve(skb, SKB_DMA_REALIGN); + + refilled++; + rxq->rx_desc_count++; + + rx = rxq->rx_used_desc++; + if (rxq->rx_used_desc == rxq->rx_ring_size) + rxq->rx_used_desc = 0; + + rx_desc = rxq->rx_desc_area + rx; + + size = skb_end_pointer(skb) - skb->data; + rx_desc->buf_ptr = dma_map_single(mp->dev->dev.parent, + skb->data, size, + DMA_FROM_DEVICE); + rx_desc->buf_size = size; + rxq->rx_skb[rx] = skb; + wmb(); + rx_desc->cmd_sts = BUFFER_OWNED_BY_DMA | RX_ENABLE_INTERRUPT; + wmb(); + + /* + * The hardware automatically prepends 2 bytes of + * dummy data to each received packet, so that the + * IP header ends up 16-byte aligned. + */ + skb_reserve(skb, 2); + } + + if (refilled < budget) + mp->work_rx_refill &= ~(1 << rxq->index); + +oom: + return refilled; +} + + +/* tx ***********************************************************************/ +static inline unsigned int has_tiny_unaligned_frags(struct sk_buff *skb) +{ + int frag; + + for (frag = 0; frag < skb_shinfo(skb)->nr_frags; frag++) { + const skb_frag_t *fragp = &skb_shinfo(skb)->frags[frag]; + + if (skb_frag_size(fragp) <= 8 && skb_frag_off(fragp) & 7) + return 1; + } + + return 0; +} + +static int skb_tx_csum(struct mv643xx_eth_private *mp, struct sk_buff *skb, + u16 *l4i_chk, u32 *command, int length) +{ + int ret; + u32 cmd = 0; + + if (skb->ip_summed == CHECKSUM_PARTIAL) { + int hdr_len; + int tag_bytes; + + BUG_ON(skb->protocol != htons(ETH_P_IP) && + skb->protocol != htons(ETH_P_8021Q)); + + hdr_len = (void *)ip_hdr(skb) - (void *)skb->data; + tag_bytes = hdr_len - ETH_HLEN; + + if (length - hdr_len > mp->shared->tx_csum_limit || + unlikely(tag_bytes & ~12)) { + ret = skb_checksum_help(skb); + if (!ret) + goto no_csum; + return ret; + } + + if (tag_bytes & 4) + cmd |= MAC_HDR_EXTRA_4_BYTES; + if (tag_bytes & 8) + cmd |= MAC_HDR_EXTRA_8_BYTES; + + cmd |= GEN_TCP_UDP_CHECKSUM | GEN_TCP_UDP_CHK_FULL | + GEN_IP_V4_CHECKSUM | + ip_hdr(skb)->ihl << TX_IHL_SHIFT; + + /* TODO: Revisit this. With the usage of GEN_TCP_UDP_CHK_FULL + * it seems we don't need to pass the initial checksum. + */ + switch (ip_hdr(skb)->protocol) { + case IPPROTO_UDP: + cmd |= UDP_FRAME; + *l4i_chk = 0; + break; + case IPPROTO_TCP: + *l4i_chk = 0; + break; + default: + WARN(1, "protocol not supported"); + } + } else { +no_csum: + /* Errata BTS #50, IHL must be 5 if no HW checksum */ + cmd |= 5 << TX_IHL_SHIFT; + } + *command = cmd; + return 0; +} + +static inline int +txq_put_data_tso(struct net_device *dev, struct tx_queue *txq, + struct sk_buff *skb, char *data, int length, + bool last_tcp, bool is_last) +{ + int tx_index; + u32 cmd_sts; + struct tx_desc *desc; + + tx_index = txq->tx_curr_desc++; + if (txq->tx_curr_desc == txq->tx_ring_size) + txq->tx_curr_desc = 0; + desc = &txq->tx_desc_area[tx_index]; + txq->tx_desc_mapping[tx_index] = DESC_DMA_MAP_SINGLE; + + desc->l4i_chk = 0; + desc->byte_cnt = length; + + if (length <= 8 && (uintptr_t)data & 0x7) { + /* Copy unaligned small data fragment to TSO header data area */ + memcpy(txq->tso_hdrs + tx_index * TSO_HEADER_SIZE, + data, length); + desc->buf_ptr = txq->tso_hdrs_dma + + tx_index * TSO_HEADER_SIZE; + } else { + /* Alignment is okay, map buffer and hand off to hardware */ + txq->tx_desc_mapping[tx_index] = DESC_DMA_MAP_SINGLE; + desc->buf_ptr = dma_map_single(dev->dev.parent, data, + length, DMA_TO_DEVICE); + if (unlikely(dma_mapping_error(dev->dev.parent, + desc->buf_ptr))) { + WARN(1, "dma_map_single failed!\n"); + return -ENOMEM; + } + } + + cmd_sts = BUFFER_OWNED_BY_DMA; + if (last_tcp) { + /* last descriptor in the TCP packet */ + cmd_sts |= ZERO_PADDING | TX_LAST_DESC; + /* last descriptor in SKB */ + if (is_last) + cmd_sts |= TX_ENABLE_INTERRUPT; + } + desc->cmd_sts = cmd_sts; + return 0; +} + +static inline void +txq_put_hdr_tso(struct sk_buff *skb, struct tx_queue *txq, int length, + u32 *first_cmd_sts, bool first_desc) +{ + struct mv643xx_eth_private *mp = txq_to_mp(txq); + int hdr_len = skb_tcp_all_headers(skb); + int tx_index; + struct tx_desc *desc; + int ret; + u32 cmd_csum = 0; + u16 l4i_chk = 0; + u32 cmd_sts; + + tx_index = txq->tx_curr_desc; + desc = &txq->tx_desc_area[tx_index]; + + ret = skb_tx_csum(mp, skb, &l4i_chk, &cmd_csum, length); + if (ret) + WARN(1, "failed to prepare checksum!"); + + /* Should we set this? Can't use the value from skb_tx_csum() + * as it's not the correct initial L4 checksum to use. + */ + desc->l4i_chk = 0; + + desc->byte_cnt = hdr_len; + desc->buf_ptr = txq->tso_hdrs_dma + + txq->tx_curr_desc * TSO_HEADER_SIZE; + cmd_sts = cmd_csum | BUFFER_OWNED_BY_DMA | TX_FIRST_DESC | + GEN_CRC; + + /* Defer updating the first command descriptor until all + * following descriptors have been written. + */ + if (first_desc) + *first_cmd_sts = cmd_sts; + else + desc->cmd_sts = cmd_sts; + + txq->tx_curr_desc++; + if (txq->tx_curr_desc == txq->tx_ring_size) + txq->tx_curr_desc = 0; +} + +static int txq_submit_tso(struct tx_queue *txq, struct sk_buff *skb, + struct net_device *dev) +{ + struct mv643xx_eth_private *mp = txq_to_mp(txq); + int hdr_len, total_len, data_left, ret; + int desc_count = 0; + struct tso_t tso; + struct tx_desc *first_tx_desc; + u32 first_cmd_sts = 0; + + /* Count needed descriptors */ + if ((txq->tx_desc_count + tso_count_descs(skb)) >= txq->tx_ring_size) { + netdev_dbg(dev, "not enough descriptors for TSO!\n"); + return -EBUSY; + } + + first_tx_desc = &txq->tx_desc_area[txq->tx_curr_desc]; + + /* Initialize the TSO handler, and prepare the first payload */ + hdr_len = tso_start(skb, &tso); + + total_len = skb->len - hdr_len; + while (total_len > 0) { + bool first_desc = (desc_count == 0); + char *hdr; + + data_left = min_t(int, skb_shinfo(skb)->gso_size, total_len); + total_len -= data_left; + desc_count++; + + /* prepare packet headers: MAC + IP + TCP */ + hdr = txq->tso_hdrs + txq->tx_curr_desc * TSO_HEADER_SIZE; + tso_build_hdr(skb, hdr, &tso, data_left, total_len == 0); + txq_put_hdr_tso(skb, txq, data_left, &first_cmd_sts, + first_desc); + + while (data_left > 0) { + int size; + desc_count++; + + size = min_t(int, tso.size, data_left); + ret = txq_put_data_tso(dev, txq, skb, tso.data, size, + size == data_left, + total_len == 0); + if (ret) + goto err_release; + data_left -= size; + tso_build_data(skb, &tso, size); + } + } + + __skb_queue_tail(&txq->tx_skb, skb); + skb_tx_timestamp(skb); + + /* ensure all other descriptors are written before first cmd_sts */ + wmb(); + first_tx_desc->cmd_sts = first_cmd_sts; + + /* clear TX_END status */ + mp->work_tx_end &= ~(1 << txq->index); + + /* ensure all descriptors are written before poking hardware */ + wmb(); + txq_enable(txq); + txq->tx_desc_count += desc_count; + return 0; +err_release: + /* TODO: Release all used data descriptors; header descriptors must not + * be DMA-unmapped. + */ + return ret; +} + +static void txq_submit_frag_skb(struct tx_queue *txq, struct sk_buff *skb) +{ + struct mv643xx_eth_private *mp = txq_to_mp(txq); + int nr_frags = skb_shinfo(skb)->nr_frags; + int frag; + + for (frag = 0; frag < nr_frags; frag++) { + skb_frag_t *this_frag; + int tx_index; + struct tx_desc *desc; + + this_frag = &skb_shinfo(skb)->frags[frag]; + tx_index = txq->tx_curr_desc++; + if (txq->tx_curr_desc == txq->tx_ring_size) + txq->tx_curr_desc = 0; + desc = &txq->tx_desc_area[tx_index]; + txq->tx_desc_mapping[tx_index] = DESC_DMA_MAP_PAGE; + + /* + * The last fragment will generate an interrupt + * which will free the skb on TX completion. + */ + if (frag == nr_frags - 1) { + desc->cmd_sts = BUFFER_OWNED_BY_DMA | + ZERO_PADDING | TX_LAST_DESC | + TX_ENABLE_INTERRUPT; + } else { + desc->cmd_sts = BUFFER_OWNED_BY_DMA; + } + + desc->l4i_chk = 0; + desc->byte_cnt = skb_frag_size(this_frag); + desc->buf_ptr = skb_frag_dma_map(mp->dev->dev.parent, + this_frag, 0, desc->byte_cnt, + DMA_TO_DEVICE); + } +} + +static int txq_submit_skb(struct tx_queue *txq, struct sk_buff *skb, + struct net_device *dev) +{ + struct mv643xx_eth_private *mp = txq_to_mp(txq); + int nr_frags = skb_shinfo(skb)->nr_frags; + int tx_index; + struct tx_desc *desc; + u32 cmd_sts; + u16 l4i_chk; + int length, ret; + + cmd_sts = 0; + l4i_chk = 0; + + if (txq->tx_ring_size - txq->tx_desc_count < MAX_SKB_FRAGS + 1) { + if (net_ratelimit()) + netdev_err(dev, "tx queue full?!\n"); + return -EBUSY; + } + + ret = skb_tx_csum(mp, skb, &l4i_chk, &cmd_sts, skb->len); + if (ret) + return ret; + cmd_sts |= TX_FIRST_DESC | GEN_CRC | BUFFER_OWNED_BY_DMA; + + tx_index = txq->tx_curr_desc++; + if (txq->tx_curr_desc == txq->tx_ring_size) + txq->tx_curr_desc = 0; + desc = &txq->tx_desc_area[tx_index]; + txq->tx_desc_mapping[tx_index] = DESC_DMA_MAP_SINGLE; + + if (nr_frags) { + txq_submit_frag_skb(txq, skb); + length = skb_headlen(skb); + } else { + cmd_sts |= ZERO_PADDING | TX_LAST_DESC | TX_ENABLE_INTERRUPT; + length = skb->len; + } + + desc->l4i_chk = l4i_chk; + desc->byte_cnt = length; + desc->buf_ptr = dma_map_single(mp->dev->dev.parent, skb->data, + length, DMA_TO_DEVICE); + + __skb_queue_tail(&txq->tx_skb, skb); + + skb_tx_timestamp(skb); + + /* ensure all other descriptors are written before first cmd_sts */ + wmb(); + desc->cmd_sts = cmd_sts; + + /* clear TX_END status */ + mp->work_tx_end &= ~(1 << txq->index); + + /* ensure all descriptors are written before poking hardware */ + wmb(); + txq_enable(txq); + + txq->tx_desc_count += nr_frags + 1; + + return 0; +} + +static netdev_tx_t mv643xx_eth_xmit(struct sk_buff *skb, struct net_device *dev) +{ + struct mv643xx_eth_private *mp = netdev_priv(dev); + int length, queue, ret; + struct tx_queue *txq; + struct netdev_queue *nq; + + queue = skb_get_queue_mapping(skb); + txq = mp->txq + queue; + nq = netdev_get_tx_queue(dev, queue); + + if (has_tiny_unaligned_frags(skb) && __skb_linearize(skb)) { + netdev_printk(KERN_DEBUG, dev, + "failed to linearize skb with tiny unaligned fragment\n"); + return NETDEV_TX_BUSY; + } + + length = skb->len; + + if (skb_is_gso(skb)) + ret = txq_submit_tso(txq, skb, dev); + else + ret = txq_submit_skb(txq, skb, dev); + if (!ret) { + txq->tx_bytes += length; + txq->tx_packets++; + + if (txq->tx_desc_count >= txq->tx_stop_threshold) + netif_tx_stop_queue(nq); + } else { + txq->tx_dropped++; + dev_kfree_skb_any(skb); + } + + return NETDEV_TX_OK; +} + + +/* tx napi ******************************************************************/ +static void txq_kick(struct tx_queue *txq) +{ + struct mv643xx_eth_private *mp = txq_to_mp(txq); + struct netdev_queue *nq = netdev_get_tx_queue(mp->dev, txq->index); + u32 hw_desc_ptr; + u32 expected_ptr; + + __netif_tx_lock(nq, smp_processor_id()); + + if (rdlp(mp, TXQ_COMMAND) & (1 << txq->index)) + goto out; + + hw_desc_ptr = rdlp(mp, TXQ_CURRENT_DESC_PTR(txq->index)); + expected_ptr = (u32)txq->tx_desc_dma + + txq->tx_curr_desc * sizeof(struct tx_desc); + + if (hw_desc_ptr != expected_ptr) + txq_enable(txq); + +out: + __netif_tx_unlock(nq); + + mp->work_tx_end &= ~(1 << txq->index); +} + +static int txq_reclaim(struct tx_queue *txq, int budget, int force) +{ + struct mv643xx_eth_private *mp = txq_to_mp(txq); + struct netdev_queue *nq = netdev_get_tx_queue(mp->dev, txq->index); + int reclaimed; + + __netif_tx_lock_bh(nq); + + reclaimed = 0; + while (reclaimed < budget && txq->tx_desc_count > 0) { + int tx_index; + struct tx_desc *desc; + u32 cmd_sts; + char desc_dma_map; + + tx_index = txq->tx_used_desc; + desc = &txq->tx_desc_area[tx_index]; + desc_dma_map = txq->tx_desc_mapping[tx_index]; + + cmd_sts = desc->cmd_sts; + + if (cmd_sts & BUFFER_OWNED_BY_DMA) { + if (!force) + break; + desc->cmd_sts = cmd_sts & ~BUFFER_OWNED_BY_DMA; + } + + txq->tx_used_desc = tx_index + 1; + if (txq->tx_used_desc == txq->tx_ring_size) + txq->tx_used_desc = 0; + + reclaimed++; + txq->tx_desc_count--; + + if (!IS_TSO_HEADER(txq, desc->buf_ptr)) { + + if (desc_dma_map == DESC_DMA_MAP_PAGE) + dma_unmap_page(mp->dev->dev.parent, + desc->buf_ptr, + desc->byte_cnt, + DMA_TO_DEVICE); + else + dma_unmap_single(mp->dev->dev.parent, + desc->buf_ptr, + desc->byte_cnt, + DMA_TO_DEVICE); + } + + if (cmd_sts & TX_ENABLE_INTERRUPT) { + struct sk_buff *skb = __skb_dequeue(&txq->tx_skb); + + if (!WARN_ON(!skb)) + dev_consume_skb_any(skb); + } + + if (cmd_sts & ERROR_SUMMARY) { + netdev_info(mp->dev, "tx error\n"); + mp->dev->stats.tx_errors++; + } + + } + + __netif_tx_unlock_bh(nq); + + if (reclaimed < budget) + mp->work_tx &= ~(1 << txq->index); + + return reclaimed; +} + + +/* tx rate control **********************************************************/ +/* + * Set total maximum TX rate (shared by all TX queues for this port) + * to 'rate' bits per second, with a maximum burst of 'burst' bytes. + */ +static void tx_set_rate(struct mv643xx_eth_private *mp, int rate, int burst) +{ + int token_rate; + int mtu; + int bucket_size; + + token_rate = ((rate / 1000) * 64) / (mp->t_clk / 1000); + if (token_rate > 1023) + token_rate = 1023; + + mtu = (mp->dev->mtu + 255) >> 8; + if (mtu > 63) + mtu = 63; + + bucket_size = (burst + 255) >> 8; + if (bucket_size > 65535) + bucket_size = 65535; + + switch (mp->shared->tx_bw_control) { + case TX_BW_CONTROL_OLD_LAYOUT: + wrlp(mp, TX_BW_RATE, token_rate); + wrlp(mp, TX_BW_MTU, mtu); + wrlp(mp, TX_BW_BURST, bucket_size); + break; + case TX_BW_CONTROL_NEW_LAYOUT: + wrlp(mp, TX_BW_RATE_MOVED, token_rate); + wrlp(mp, TX_BW_MTU_MOVED, mtu); + wrlp(mp, TX_BW_BURST_MOVED, bucket_size); + break; + } +} + +static void txq_set_rate(struct tx_queue *txq, int rate, int burst) +{ + struct mv643xx_eth_private *mp = txq_to_mp(txq); + int token_rate; + int bucket_size; + + token_rate = ((rate / 1000) * 64) / (mp->t_clk / 1000); + if (token_rate > 1023) + token_rate = 1023; + + bucket_size = (burst + 255) >> 8; + if (bucket_size > 65535) + bucket_size = 65535; + + wrlp(mp, TXQ_BW_TOKENS(txq->index), token_rate << 14); + wrlp(mp, TXQ_BW_CONF(txq->index), (bucket_size << 10) | token_rate); +} + +static void txq_set_fixed_prio_mode(struct tx_queue *txq) +{ + struct mv643xx_eth_private *mp = txq_to_mp(txq); + int off; + u32 val; + + /* + * Turn on fixed priority mode. + */ + off = 0; + switch (mp->shared->tx_bw_control) { + case TX_BW_CONTROL_OLD_LAYOUT: + off = TXQ_FIX_PRIO_CONF; + break; + case TX_BW_CONTROL_NEW_LAYOUT: + off = TXQ_FIX_PRIO_CONF_MOVED; + break; + } + + if (off) { + val = rdlp(mp, off); + val |= 1 << txq->index; + wrlp(mp, off, val); + } +} + + +/* mii management interface *************************************************/ +static void mv643xx_eth_adjust_link(struct net_device *dev) +{ + struct mv643xx_eth_private *mp = netdev_priv(dev); + u32 pscr = rdlp(mp, PORT_SERIAL_CONTROL); + u32 autoneg_disable = FORCE_LINK_PASS | + DISABLE_AUTO_NEG_SPEED_GMII | + DISABLE_AUTO_NEG_FOR_FLOW_CTRL | + DISABLE_AUTO_NEG_FOR_DUPLEX; + + if (dev->phydev->autoneg == AUTONEG_ENABLE) { + /* enable auto negotiation */ + pscr &= ~autoneg_disable; + goto out_write; + } + + pscr |= autoneg_disable; + + if (dev->phydev->speed == SPEED_1000) { + /* force gigabit, half duplex not supported */ + pscr |= SET_GMII_SPEED_TO_1000; + pscr |= SET_FULL_DUPLEX_MODE; + goto out_write; + } + + pscr &= ~SET_GMII_SPEED_TO_1000; + + if (dev->phydev->speed == SPEED_100) + pscr |= SET_MII_SPEED_TO_100; + else + pscr &= ~SET_MII_SPEED_TO_100; + + if (dev->phydev->duplex == DUPLEX_FULL) + pscr |= SET_FULL_DUPLEX_MODE; + else + pscr &= ~SET_FULL_DUPLEX_MODE; + +out_write: + wrlp(mp, PORT_SERIAL_CONTROL, pscr); +} + +/* statistics ***************************************************************/ +static struct net_device_stats *mv643xx_eth_get_stats(struct net_device *dev) +{ + struct mv643xx_eth_private *mp = netdev_priv(dev); + struct net_device_stats *stats = &dev->stats; + unsigned long tx_packets = 0; + unsigned long tx_bytes = 0; + unsigned long tx_dropped = 0; + int i; + + for (i = 0; i < mp->txq_count; i++) { + struct tx_queue *txq = mp->txq + i; + + tx_packets += txq->tx_packets; + tx_bytes += txq->tx_bytes; + tx_dropped += txq->tx_dropped; + } + + stats->tx_packets = tx_packets; + stats->tx_bytes = tx_bytes; + stats->tx_dropped = tx_dropped; + + return stats; +} + +static inline u32 mib_read(struct mv643xx_eth_private *mp, int offset) +{ + return rdl(mp, MIB_COUNTERS(mp->port_num) + offset); +} + +static void mib_counters_clear(struct mv643xx_eth_private *mp) +{ + int i; + + for (i = 0; i < 0x80; i += 4) + mib_read(mp, i); + + /* Clear non MIB hw counters also */ + rdlp(mp, RX_DISCARD_FRAME_CNT); + rdlp(mp, RX_OVERRUN_FRAME_CNT); +} + +static void mib_counters_update(struct mv643xx_eth_private *mp) +{ + struct mib_counters *p = &mp->mib_counters; + + spin_lock_bh(&mp->mib_counters_lock); + p->good_octets_received += mib_read(mp, 0x00); + p->bad_octets_received += mib_read(mp, 0x08); + p->internal_mac_transmit_err += mib_read(mp, 0x0c); + p->good_frames_received += mib_read(mp, 0x10); + p->bad_frames_received += mib_read(mp, 0x14); + p->broadcast_frames_received += mib_read(mp, 0x18); + p->multicast_frames_received += mib_read(mp, 0x1c); + p->frames_64_octets += mib_read(mp, 0x20); + p->frames_65_to_127_octets += mib_read(mp, 0x24); + p->frames_128_to_255_octets += mib_read(mp, 0x28); + p->frames_256_to_511_octets += mib_read(mp, 0x2c); + p->frames_512_to_1023_octets += mib_read(mp, 0x30); + p->frames_1024_to_max_octets += mib_read(mp, 0x34); + p->good_octets_sent += mib_read(mp, 0x38); + p->good_frames_sent += mib_read(mp, 0x40); + p->excessive_collision += mib_read(mp, 0x44); + p->multicast_frames_sent += mib_read(mp, 0x48); + p->broadcast_frames_sent += mib_read(mp, 0x4c); + p->unrec_mac_control_received += mib_read(mp, 0x50); + p->fc_sent += mib_read(mp, 0x54); + p->good_fc_received += mib_read(mp, 0x58); + p->bad_fc_received += mib_read(mp, 0x5c); + p->undersize_received += mib_read(mp, 0x60); + p->fragments_received += mib_read(mp, 0x64); + p->oversize_received += mib_read(mp, 0x68); + p->jabber_received += mib_read(mp, 0x6c); + p->mac_receive_error += mib_read(mp, 0x70); + p->bad_crc_event += mib_read(mp, 0x74); + p->collision += mib_read(mp, 0x78); + p->late_collision += mib_read(mp, 0x7c); + /* Non MIB hardware counters */ + p->rx_discard += rdlp(mp, RX_DISCARD_FRAME_CNT); + p->rx_overrun += rdlp(mp, RX_OVERRUN_FRAME_CNT); + spin_unlock_bh(&mp->mib_counters_lock); +} + +static void mib_counters_timer_wrapper(struct timer_list *t) +{ + struct mv643xx_eth_private *mp = from_timer(mp, t, mib_counters_timer); + mib_counters_update(mp); + mod_timer(&mp->mib_counters_timer, jiffies + 30 * HZ); +} + + +/* interrupt coalescing *****************************************************/ +/* + * Hardware coalescing parameters are set in units of 64 t_clk + * cycles. I.e.: + * + * coal_delay_in_usec = 64000000 * register_value / t_clk_rate + * + * register_value = coal_delay_in_usec * t_clk_rate / 64000000 + * + * In the ->set*() methods, we round the computed register value + * to the nearest integer. + */ +static unsigned int get_rx_coal(struct mv643xx_eth_private *mp) +{ + u32 val = rdlp(mp, SDMA_CONFIG); + u64 temp; + + if (mp->shared->extended_rx_coal_limit) + temp = ((val & 0x02000000) >> 10) | ((val & 0x003fff80) >> 7); + else + temp = (val & 0x003fff00) >> 8; + + temp *= 64000000; + temp += mp->t_clk / 2; + do_div(temp, mp->t_clk); + + return (unsigned int)temp; +} + +static void set_rx_coal(struct mv643xx_eth_private *mp, unsigned int usec) +{ + u64 temp; + u32 val; + + temp = (u64)usec * mp->t_clk; + temp += 31999999; + do_div(temp, 64000000); + + val = rdlp(mp, SDMA_CONFIG); + if (mp->shared->extended_rx_coal_limit) { + if (temp > 0xffff) + temp = 0xffff; + val &= ~0x023fff80; + val |= (temp & 0x8000) << 10; + val |= (temp & 0x7fff) << 7; + } else { + if (temp > 0x3fff) + temp = 0x3fff; + val &= ~0x003fff00; + val |= (temp & 0x3fff) << 8; + } + wrlp(mp, SDMA_CONFIG, val); +} + +static unsigned int get_tx_coal(struct mv643xx_eth_private *mp) +{ + u64 temp; + + temp = (rdlp(mp, TX_FIFO_URGENT_THRESHOLD) & 0x3fff0) >> 4; + temp *= 64000000; + temp += mp->t_clk / 2; + do_div(temp, mp->t_clk); + + return (unsigned int)temp; +} + +static void set_tx_coal(struct mv643xx_eth_private *mp, unsigned int usec) +{ + u64 temp; + + temp = (u64)usec * mp->t_clk; + temp += 31999999; + do_div(temp, 64000000); + + if (temp > 0x3fff) + temp = 0x3fff; + + wrlp(mp, TX_FIFO_URGENT_THRESHOLD, temp << 4); +} + + +/* ethtool ******************************************************************/ +struct mv643xx_eth_stats { + char stat_string[ETH_GSTRING_LEN]; + int sizeof_stat; + int netdev_off; + int mp_off; +}; + +#define SSTAT(m) \ + { #m, sizeof_field(struct net_device_stats, m), \ + offsetof(struct net_device, stats.m), -1 } + +#define MIBSTAT(m) \ + { #m, sizeof_field(struct mib_counters, m), \ + -1, offsetof(struct mv643xx_eth_private, mib_counters.m) } + +static const struct mv643xx_eth_stats mv643xx_eth_stats[] = { + SSTAT(rx_packets), + SSTAT(tx_packets), + SSTAT(rx_bytes), + SSTAT(tx_bytes), + SSTAT(rx_errors), + SSTAT(tx_errors), + SSTAT(rx_dropped), + SSTAT(tx_dropped), + MIBSTAT(good_octets_received), + MIBSTAT(bad_octets_received), + MIBSTAT(internal_mac_transmit_err), + MIBSTAT(good_frames_received), + MIBSTAT(bad_frames_received), + MIBSTAT(broadcast_frames_received), + MIBSTAT(multicast_frames_received), + MIBSTAT(frames_64_octets), + MIBSTAT(frames_65_to_127_octets), + MIBSTAT(frames_128_to_255_octets), + MIBSTAT(frames_256_to_511_octets), + MIBSTAT(frames_512_to_1023_octets), + MIBSTAT(frames_1024_to_max_octets), + MIBSTAT(good_octets_sent), + MIBSTAT(good_frames_sent), + MIBSTAT(excessive_collision), + MIBSTAT(multicast_frames_sent), + MIBSTAT(broadcast_frames_sent), + MIBSTAT(unrec_mac_control_received), + MIBSTAT(fc_sent), + MIBSTAT(good_fc_received), + MIBSTAT(bad_fc_received), + MIBSTAT(undersize_received), + MIBSTAT(fragments_received), + MIBSTAT(oversize_received), + MIBSTAT(jabber_received), + MIBSTAT(mac_receive_error), + MIBSTAT(bad_crc_event), + MIBSTAT(collision), + MIBSTAT(late_collision), + MIBSTAT(rx_discard), + MIBSTAT(rx_overrun), +}; + +static int +mv643xx_eth_get_link_ksettings_phy(struct mv643xx_eth_private *mp, + struct ethtool_link_ksettings *cmd) +{ + struct net_device *dev = mp->dev; + + phy_ethtool_ksettings_get(dev->phydev, cmd); + + /* + * The MAC does not support 1000baseT_Half. + */ + linkmode_clear_bit(ETHTOOL_LINK_MODE_1000baseT_Half_BIT, + cmd->link_modes.supported); + linkmode_clear_bit(ETHTOOL_LINK_MODE_1000baseT_Half_BIT, + cmd->link_modes.advertising); + + return 0; +} + +static int +mv643xx_eth_get_link_ksettings_phyless(struct mv643xx_eth_private *mp, + struct ethtool_link_ksettings *cmd) +{ + u32 port_status; + u32 supported, advertising; + + port_status = rdlp(mp, PORT_STATUS); + + supported = SUPPORTED_MII; + advertising = ADVERTISED_MII; + switch (port_status & PORT_SPEED_MASK) { + case PORT_SPEED_10: + cmd->base.speed = SPEED_10; + break; + case PORT_SPEED_100: + cmd->base.speed = SPEED_100; + break; + case PORT_SPEED_1000: + cmd->base.speed = SPEED_1000; + break; + default: + cmd->base.speed = -1; + break; + } + cmd->base.duplex = (port_status & FULL_DUPLEX) ? + DUPLEX_FULL : DUPLEX_HALF; + cmd->base.port = PORT_MII; + cmd->base.phy_address = 0; + cmd->base.autoneg = AUTONEG_DISABLE; + + ethtool_convert_legacy_u32_to_link_mode(cmd->link_modes.supported, + supported); + ethtool_convert_legacy_u32_to_link_mode(cmd->link_modes.advertising, + advertising); + + return 0; +} + +static void +mv643xx_eth_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol) +{ + wol->supported = 0; + wol->wolopts = 0; + if (dev->phydev) + phy_ethtool_get_wol(dev->phydev, wol); +} + +static int +mv643xx_eth_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol) +{ + int err; + + if (!dev->phydev) + return -EOPNOTSUPP; + + err = phy_ethtool_set_wol(dev->phydev, wol); + /* Given that mv643xx_eth works without the marvell-specific PHY driver, + * this debugging hint is useful to have. + */ + if (err == -EOPNOTSUPP) + netdev_info(dev, "The PHY does not support set_wol, was CONFIG_MARVELL_PHY enabled?\n"); + return err; +} + +static int +mv643xx_eth_get_link_ksettings(struct net_device *dev, + struct ethtool_link_ksettings *cmd) +{ + struct mv643xx_eth_private *mp = netdev_priv(dev); + + if (dev->phydev) + return mv643xx_eth_get_link_ksettings_phy(mp, cmd); + else + return mv643xx_eth_get_link_ksettings_phyless(mp, cmd); +} + +static int +mv643xx_eth_set_link_ksettings(struct net_device *dev, + const struct ethtool_link_ksettings *cmd) +{ + struct ethtool_link_ksettings c = *cmd; + u32 advertising; + int ret; + + if (!dev->phydev) + return -EINVAL; + + /* + * The MAC does not support 1000baseT_Half. + */ + ethtool_convert_link_mode_to_legacy_u32(&advertising, + c.link_modes.advertising); + advertising &= ~ADVERTISED_1000baseT_Half; + ethtool_convert_legacy_u32_to_link_mode(c.link_modes.advertising, + advertising); + + ret = phy_ethtool_ksettings_set(dev->phydev, &c); + if (!ret) + mv643xx_eth_adjust_link(dev); + return ret; +} + +static void mv643xx_eth_get_drvinfo(struct net_device *dev, + struct ethtool_drvinfo *drvinfo) +{ + strscpy(drvinfo->driver, mv643xx_eth_driver_name, + sizeof(drvinfo->driver)); + strscpy(drvinfo->version, mv643xx_eth_driver_version, + sizeof(drvinfo->version)); + strscpy(drvinfo->fw_version, "N/A", sizeof(drvinfo->fw_version)); + strscpy(drvinfo->bus_info, "platform", sizeof(drvinfo->bus_info)); +} + +static int mv643xx_eth_get_coalesce(struct net_device *dev, + struct ethtool_coalesce *ec, + struct kernel_ethtool_coalesce *kernel_coal, + struct netlink_ext_ack *extack) +{ + struct mv643xx_eth_private *mp = netdev_priv(dev); + + ec->rx_coalesce_usecs = get_rx_coal(mp); + ec->tx_coalesce_usecs = get_tx_coal(mp); + + return 0; +} + +static int mv643xx_eth_set_coalesce(struct net_device *dev, + struct ethtool_coalesce *ec, + struct kernel_ethtool_coalesce *kernel_coal, + struct netlink_ext_ack *extack) +{ + struct mv643xx_eth_private *mp = netdev_priv(dev); + + set_rx_coal(mp, ec->rx_coalesce_usecs); + set_tx_coal(mp, ec->tx_coalesce_usecs); + + return 0; +} + +static void +mv643xx_eth_get_ringparam(struct net_device *dev, struct ethtool_ringparam *er, + struct kernel_ethtool_ringparam *kernel_er, + struct netlink_ext_ack *extack) +{ + struct mv643xx_eth_private *mp = netdev_priv(dev); + + er->rx_max_pending = 4096; + er->tx_max_pending = 4096; + + er->rx_pending = mp->rx_ring_size; + er->tx_pending = mp->tx_ring_size; +} + +static int +mv643xx_eth_set_ringparam(struct net_device *dev, struct ethtool_ringparam *er, + struct kernel_ethtool_ringparam *kernel_er, + struct netlink_ext_ack *extack) +{ + struct mv643xx_eth_private *mp = netdev_priv(dev); + + if (er->rx_mini_pending || er->rx_jumbo_pending) + return -EINVAL; + + mp->rx_ring_size = min(er->rx_pending, 4096U); + mp->tx_ring_size = clamp_t(unsigned int, er->tx_pending, + MV643XX_MAX_SKB_DESCS * 2, 4096); + if (mp->tx_ring_size != er->tx_pending) + netdev_warn(dev, "TX queue size set to %u (requested %u)\n", + mp->tx_ring_size, er->tx_pending); + + if (netif_running(dev)) { + mv643xx_eth_stop(dev); + if (mv643xx_eth_open(dev)) { + netdev_err(dev, + "fatal error on re-opening device after ring param change\n"); + return -ENOMEM; + } + } + + return 0; +} + + +static int +mv643xx_eth_set_features(struct net_device *dev, netdev_features_t features) +{ + struct mv643xx_eth_private *mp = netdev_priv(dev); + bool rx_csum = features & NETIF_F_RXCSUM; + + wrlp(mp, PORT_CONFIG, rx_csum ? 0x02000000 : 0x00000000); + + return 0; +} + +static void mv643xx_eth_get_strings(struct net_device *dev, + uint32_t stringset, uint8_t *data) +{ + int i; + + if (stringset == ETH_SS_STATS) { + for (i = 0; i < ARRAY_SIZE(mv643xx_eth_stats); i++) { + memcpy(data + i * ETH_GSTRING_LEN, + mv643xx_eth_stats[i].stat_string, + ETH_GSTRING_LEN); + } + } +} + +static void mv643xx_eth_get_ethtool_stats(struct net_device *dev, + struct ethtool_stats *stats, + uint64_t *data) +{ + struct mv643xx_eth_private *mp = netdev_priv(dev); + int i; + + mv643xx_eth_get_stats(dev); + mib_counters_update(mp); + + for (i = 0; i < ARRAY_SIZE(mv643xx_eth_stats); i++) { + const struct mv643xx_eth_stats *stat; + void *p; + + stat = mv643xx_eth_stats + i; + + if (stat->netdev_off >= 0) + p = ((void *)mp->dev) + stat->netdev_off; + else + p = ((void *)mp) + stat->mp_off; + + data[i] = (stat->sizeof_stat == 8) ? + *(uint64_t *)p : *(uint32_t *)p; + } +} + +static int mv643xx_eth_get_sset_count(struct net_device *dev, int sset) +{ + if (sset == ETH_SS_STATS) + return ARRAY_SIZE(mv643xx_eth_stats); + + return -EOPNOTSUPP; +} + +static const struct ethtool_ops mv643xx_eth_ethtool_ops = { + .supported_coalesce_params = ETHTOOL_COALESCE_USECS, + .get_drvinfo = mv643xx_eth_get_drvinfo, + .nway_reset = phy_ethtool_nway_reset, + .get_link = ethtool_op_get_link, + .get_coalesce = mv643xx_eth_get_coalesce, + .set_coalesce = mv643xx_eth_set_coalesce, + .get_ringparam = mv643xx_eth_get_ringparam, + .set_ringparam = mv643xx_eth_set_ringparam, + .get_strings = mv643xx_eth_get_strings, + .get_ethtool_stats = mv643xx_eth_get_ethtool_stats, + .get_sset_count = mv643xx_eth_get_sset_count, + .get_ts_info = ethtool_op_get_ts_info, + .get_wol = mv643xx_eth_get_wol, + .set_wol = mv643xx_eth_set_wol, + .get_link_ksettings = mv643xx_eth_get_link_ksettings, + .set_link_ksettings = mv643xx_eth_set_link_ksettings, +}; + + +/* address handling *********************************************************/ +static void uc_addr_get(struct mv643xx_eth_private *mp, unsigned char *addr) +{ + unsigned int mac_h = rdlp(mp, MAC_ADDR_HIGH); + unsigned int mac_l = rdlp(mp, MAC_ADDR_LOW); + + addr[0] = (mac_h >> 24) & 0xff; + addr[1] = (mac_h >> 16) & 0xff; + addr[2] = (mac_h >> 8) & 0xff; + addr[3] = mac_h & 0xff; + addr[4] = (mac_l >> 8) & 0xff; + addr[5] = mac_l & 0xff; +} + +static void uc_addr_set(struct mv643xx_eth_private *mp, const u8 *addr) +{ + wrlp(mp, MAC_ADDR_HIGH, + (addr[0] << 24) | (addr[1] << 16) | (addr[2] << 8) | addr[3]); + wrlp(mp, MAC_ADDR_LOW, (addr[4] << 8) | addr[5]); +} + +static u32 uc_addr_filter_mask(struct net_device *dev) +{ + struct netdev_hw_addr *ha; + u32 nibbles; + + if (dev->flags & IFF_PROMISC) + return 0; + + nibbles = 1 << (dev->dev_addr[5] & 0x0f); + netdev_for_each_uc_addr(ha, dev) { + if (memcmp(dev->dev_addr, ha->addr, 5)) + return 0; + if ((dev->dev_addr[5] ^ ha->addr[5]) & 0xf0) + return 0; + + nibbles |= 1 << (ha->addr[5] & 0x0f); + } + + return nibbles; +} + +static void mv643xx_eth_program_unicast_filter(struct net_device *dev) +{ + struct mv643xx_eth_private *mp = netdev_priv(dev); + u32 port_config; + u32 nibbles; + int i; + + uc_addr_set(mp, dev->dev_addr); + + port_config = rdlp(mp, PORT_CONFIG) & ~UNICAST_PROMISCUOUS_MODE; + + nibbles = uc_addr_filter_mask(dev); + if (!nibbles) { + port_config |= UNICAST_PROMISCUOUS_MODE; + nibbles = 0xffff; + } + + for (i = 0; i < 16; i += 4) { + int off = UNICAST_TABLE(mp->port_num) + i; + u32 v; + + v = 0; + if (nibbles & 1) + v |= 0x00000001; + if (nibbles & 2) + v |= 0x00000100; + if (nibbles & 4) + v |= 0x00010000; + if (nibbles & 8) + v |= 0x01000000; + nibbles >>= 4; + + wrl(mp, off, v); + } + + wrlp(mp, PORT_CONFIG, port_config); +} + +static int addr_crc(unsigned char *addr) +{ + int crc = 0; + int i; + + for (i = 0; i < 6; i++) { + int j; + + crc = (crc ^ addr[i]) << 8; + for (j = 7; j >= 0; j--) { + if (crc & (0x100 << j)) + crc ^= 0x107 << j; + } + } + + return crc; +} + +static void mv643xx_eth_program_multicast_filter(struct net_device *dev) +{ + struct mv643xx_eth_private *mp = netdev_priv(dev); + u32 *mc_spec; + u32 *mc_other; + struct netdev_hw_addr *ha; + int i; + + if (dev->flags & (IFF_PROMISC | IFF_ALLMULTI)) + goto promiscuous; + + /* Allocate both mc_spec and mc_other tables */ + mc_spec = kcalloc(128, sizeof(u32), GFP_ATOMIC); + if (!mc_spec) + goto promiscuous; + mc_other = &mc_spec[64]; + + netdev_for_each_mc_addr(ha, dev) { + u8 *a = ha->addr; + u32 *table; + u8 entry; + + if (memcmp(a, "\x01\x00\x5e\x00\x00", 5) == 0) { + table = mc_spec; + entry = a[5]; + } else { + table = mc_other; + entry = addr_crc(a); + } + + table[entry >> 2] |= 1 << (8 * (entry & 3)); + } + + for (i = 0; i < 64; i++) { + wrl(mp, SPECIAL_MCAST_TABLE(mp->port_num) + i * sizeof(u32), + mc_spec[i]); + wrl(mp, OTHER_MCAST_TABLE(mp->port_num) + i * sizeof(u32), + mc_other[i]); + } + + kfree(mc_spec); + return; + +promiscuous: + for (i = 0; i < 64; i++) { + wrl(mp, SPECIAL_MCAST_TABLE(mp->port_num) + i * sizeof(u32), + 0x01010101u); + wrl(mp, OTHER_MCAST_TABLE(mp->port_num) + i * sizeof(u32), + 0x01010101u); + } +} + +static void mv643xx_eth_set_rx_mode(struct net_device *dev) +{ + mv643xx_eth_program_unicast_filter(dev); + mv643xx_eth_program_multicast_filter(dev); +} + +static int mv643xx_eth_set_mac_address(struct net_device *dev, void *addr) +{ + struct sockaddr *sa = addr; + + if (!is_valid_ether_addr(sa->sa_data)) + return -EADDRNOTAVAIL; + + eth_hw_addr_set(dev, sa->sa_data); + + netif_addr_lock_bh(dev); + mv643xx_eth_program_unicast_filter(dev); + netif_addr_unlock_bh(dev); + + return 0; +} + + +/* rx/tx queue initialisation ***********************************************/ +static int rxq_init(struct mv643xx_eth_private *mp, int index) +{ + struct rx_queue *rxq = mp->rxq + index; + struct rx_desc *rx_desc; + int size; + int i; + + rxq->index = index; + + rxq->rx_ring_size = mp->rx_ring_size; + + rxq->rx_desc_count = 0; + rxq->rx_curr_desc = 0; + rxq->rx_used_desc = 0; + + size = rxq->rx_ring_size * sizeof(struct rx_desc); + + if (index == 0 && size <= mp->rx_desc_sram_size) { + rxq->rx_desc_area = ioremap(mp->rx_desc_sram_addr, + mp->rx_desc_sram_size); + rxq->rx_desc_dma = mp->rx_desc_sram_addr; + } else { + rxq->rx_desc_area = dma_alloc_coherent(mp->dev->dev.parent, + size, &rxq->rx_desc_dma, + GFP_KERNEL); + } + + if (rxq->rx_desc_area == NULL) { + netdev_err(mp->dev, + "can't allocate rx ring (%d bytes)\n", size); + goto out; + } + memset(rxq->rx_desc_area, 0, size); + + rxq->rx_desc_area_size = size; + rxq->rx_skb = kcalloc(rxq->rx_ring_size, sizeof(*rxq->rx_skb), + GFP_KERNEL); + if (rxq->rx_skb == NULL) + goto out_free; + + rx_desc = rxq->rx_desc_area; + for (i = 0; i < rxq->rx_ring_size; i++) { + int nexti; + + nexti = i + 1; + if (nexti == rxq->rx_ring_size) + nexti = 0; + + rx_desc[i].next_desc_ptr = rxq->rx_desc_dma + + nexti * sizeof(struct rx_desc); + } + + return 0; + + +out_free: + if (index == 0 && size <= mp->rx_desc_sram_size) + iounmap(rxq->rx_desc_area); + else + dma_free_coherent(mp->dev->dev.parent, size, + rxq->rx_desc_area, + rxq->rx_desc_dma); + +out: + return -ENOMEM; +} + +static void rxq_deinit(struct rx_queue *rxq) +{ + struct mv643xx_eth_private *mp = rxq_to_mp(rxq); + int i; + + rxq_disable(rxq); + + for (i = 0; i < rxq->rx_ring_size; i++) { + if (rxq->rx_skb[i]) { + dev_consume_skb_any(rxq->rx_skb[i]); + rxq->rx_desc_count--; + } + } + + if (rxq->rx_desc_count) { + netdev_err(mp->dev, "error freeing rx ring -- %d skbs stuck\n", + rxq->rx_desc_count); + } + + if (rxq->index == 0 && + rxq->rx_desc_area_size <= mp->rx_desc_sram_size) + iounmap(rxq->rx_desc_area); + else + dma_free_coherent(mp->dev->dev.parent, rxq->rx_desc_area_size, + rxq->rx_desc_area, rxq->rx_desc_dma); + + kfree(rxq->rx_skb); +} + +static int txq_init(struct mv643xx_eth_private *mp, int index) +{ + struct tx_queue *txq = mp->txq + index; + struct tx_desc *tx_desc; + int size; + int ret; + int i; + + txq->index = index; + + txq->tx_ring_size = mp->tx_ring_size; + + /* A queue must always have room for at least one skb. + * Therefore, stop the queue when the free entries reaches + * the maximum number of descriptors per skb. + */ + txq->tx_stop_threshold = txq->tx_ring_size - MV643XX_MAX_SKB_DESCS; + txq->tx_wake_threshold = txq->tx_stop_threshold / 2; + + txq->tx_desc_count = 0; + txq->tx_curr_desc = 0; + txq->tx_used_desc = 0; + + size = txq->tx_ring_size * sizeof(struct tx_desc); + + if (index == 0 && size <= mp->tx_desc_sram_size) { + txq->tx_desc_area = ioremap(mp->tx_desc_sram_addr, + mp->tx_desc_sram_size); + txq->tx_desc_dma = mp->tx_desc_sram_addr; + } else { + txq->tx_desc_area = dma_alloc_coherent(mp->dev->dev.parent, + size, &txq->tx_desc_dma, + GFP_KERNEL); + } + + if (txq->tx_desc_area == NULL) { + netdev_err(mp->dev, + "can't allocate tx ring (%d bytes)\n", size); + return -ENOMEM; + } + memset(txq->tx_desc_area, 0, size); + + txq->tx_desc_area_size = size; + + tx_desc = txq->tx_desc_area; + for (i = 0; i < txq->tx_ring_size; i++) { + struct tx_desc *txd = tx_desc + i; + int nexti; + + nexti = i + 1; + if (nexti == txq->tx_ring_size) + nexti = 0; + + txd->cmd_sts = 0; + txd->next_desc_ptr = txq->tx_desc_dma + + nexti * sizeof(struct tx_desc); + } + + txq->tx_desc_mapping = kcalloc(txq->tx_ring_size, sizeof(char), + GFP_KERNEL); + if (!txq->tx_desc_mapping) { + ret = -ENOMEM; + goto err_free_desc_area; + } + + /* Allocate DMA buffers for TSO MAC/IP/TCP headers */ + txq->tso_hdrs = dma_alloc_coherent(mp->dev->dev.parent, + txq->tx_ring_size * TSO_HEADER_SIZE, + &txq->tso_hdrs_dma, GFP_KERNEL); + if (txq->tso_hdrs == NULL) { + ret = -ENOMEM; + goto err_free_desc_mapping; + } + skb_queue_head_init(&txq->tx_skb); + + return 0; + +err_free_desc_mapping: + kfree(txq->tx_desc_mapping); +err_free_desc_area: + if (index == 0 && size <= mp->tx_desc_sram_size) + iounmap(txq->tx_desc_area); + else + dma_free_coherent(mp->dev->dev.parent, txq->tx_desc_area_size, + txq->tx_desc_area, txq->tx_desc_dma); + return ret; +} + +static void txq_deinit(struct tx_queue *txq) +{ + struct mv643xx_eth_private *mp = txq_to_mp(txq); + + txq_disable(txq); + txq_reclaim(txq, txq->tx_ring_size, 1); + + BUG_ON(txq->tx_used_desc != txq->tx_curr_desc); + + if (txq->index == 0 && + txq->tx_desc_area_size <= mp->tx_desc_sram_size) + iounmap(txq->tx_desc_area); + else + dma_free_coherent(mp->dev->dev.parent, txq->tx_desc_area_size, + txq->tx_desc_area, txq->tx_desc_dma); + kfree(txq->tx_desc_mapping); + + if (txq->tso_hdrs) + dma_free_coherent(mp->dev->dev.parent, + txq->tx_ring_size * TSO_HEADER_SIZE, + txq->tso_hdrs, txq->tso_hdrs_dma); +} + + +/* netdev ops and related ***************************************************/ +static int mv643xx_eth_collect_events(struct mv643xx_eth_private *mp) +{ + u32 int_cause; + u32 int_cause_ext; + + int_cause = rdlp(mp, INT_CAUSE) & mp->int_mask; + if (int_cause == 0) + return 0; + + int_cause_ext = 0; + if (int_cause & INT_EXT) { + int_cause &= ~INT_EXT; + int_cause_ext = rdlp(mp, INT_CAUSE_EXT); + } + + if (int_cause) { + wrlp(mp, INT_CAUSE, ~int_cause); + mp->work_tx_end |= ((int_cause & INT_TX_END) >> 19) & + ~(rdlp(mp, TXQ_COMMAND) & 0xff); + mp->work_rx |= (int_cause & INT_RX) >> 2; + } + + int_cause_ext &= INT_EXT_LINK_PHY | INT_EXT_TX; + if (int_cause_ext) { + wrlp(mp, INT_CAUSE_EXT, ~int_cause_ext); + if (int_cause_ext & INT_EXT_LINK_PHY) + mp->work_link = 1; + mp->work_tx |= int_cause_ext & INT_EXT_TX; + } + + return 1; +} + +static irqreturn_t mv643xx_eth_irq(int irq, void *dev_id) +{ + struct net_device *dev = (struct net_device *)dev_id; + struct mv643xx_eth_private *mp = netdev_priv(dev); + + if (unlikely(!mv643xx_eth_collect_events(mp))) + return IRQ_NONE; + + wrlp(mp, INT_MASK, 0); + napi_schedule(&mp->napi); + + return IRQ_HANDLED; +} + +static void handle_link_event(struct mv643xx_eth_private *mp) +{ + struct net_device *dev = mp->dev; + u32 port_status; + int speed; + int duplex; + int fc; + + port_status = rdlp(mp, PORT_STATUS); + if (!(port_status & LINK_UP)) { + if (netif_carrier_ok(dev)) { + int i; + + netdev_info(dev, "link down\n"); + + netif_carrier_off(dev); + + for (i = 0; i < mp->txq_count; i++) { + struct tx_queue *txq = mp->txq + i; + + txq_reclaim(txq, txq->tx_ring_size, 1); + txq_reset_hw_ptr(txq); + } + } + return; + } + + switch (port_status & PORT_SPEED_MASK) { + case PORT_SPEED_10: + speed = 10; + break; + case PORT_SPEED_100: + speed = 100; + break; + case PORT_SPEED_1000: + speed = 1000; + break; + default: + speed = -1; + break; + } + duplex = (port_status & FULL_DUPLEX) ? 1 : 0; + fc = (port_status & FLOW_CONTROL_ENABLED) ? 1 : 0; + + netdev_info(dev, "link up, %d Mb/s, %s duplex, flow control %sabled\n", + speed, duplex ? "full" : "half", fc ? "en" : "dis"); + + if (!netif_carrier_ok(dev)) + netif_carrier_on(dev); +} + +static int mv643xx_eth_poll(struct napi_struct *napi, int budget) +{ + struct mv643xx_eth_private *mp; + int work_done; + + mp = container_of(napi, struct mv643xx_eth_private, napi); + + if (unlikely(mp->oom)) { + mp->oom = 0; + del_timer(&mp->rx_oom); + } + + work_done = 0; + while (work_done < budget) { + u8 queue_mask; + int queue; + int work_tbd; + + if (mp->work_link) { + mp->work_link = 0; + handle_link_event(mp); + work_done++; + continue; + } + + queue_mask = mp->work_tx | mp->work_tx_end | mp->work_rx; + if (likely(!mp->oom)) + queue_mask |= mp->work_rx_refill; + + if (!queue_mask) { + if (mv643xx_eth_collect_events(mp)) + continue; + break; + } + + queue = fls(queue_mask) - 1; + queue_mask = 1 << queue; + + work_tbd = budget - work_done; + if (work_tbd > 16) + work_tbd = 16; + + if (mp->work_tx_end & queue_mask) { + txq_kick(mp->txq + queue); + } else if (mp->work_tx & queue_mask) { + work_done += txq_reclaim(mp->txq + queue, work_tbd, 0); + txq_maybe_wake(mp->txq + queue); + } else if (mp->work_rx & queue_mask) { + work_done += rxq_process(mp->rxq + queue, work_tbd); + } else if (!mp->oom && (mp->work_rx_refill & queue_mask)) { + work_done += rxq_refill(mp->rxq + queue, work_tbd); + } else { + BUG(); + } + } + + if (work_done < budget) { + if (mp->oom) + mod_timer(&mp->rx_oom, jiffies + (HZ / 10)); + napi_complete_done(napi, work_done); + wrlp(mp, INT_MASK, mp->int_mask); + } + + return work_done; +} + +static inline void oom_timer_wrapper(struct timer_list *t) +{ + struct mv643xx_eth_private *mp = from_timer(mp, t, rx_oom); + + napi_schedule(&mp->napi); +} + +static void port_start(struct mv643xx_eth_private *mp) +{ + struct net_device *dev = mp->dev; + u32 pscr; + int i; + + /* + * Perform PHY reset, if there is a PHY. + */ + if (dev->phydev) { + struct ethtool_link_ksettings cmd; + + mv643xx_eth_get_link_ksettings(dev, &cmd); + phy_init_hw(dev->phydev); + mv643xx_eth_set_link_ksettings( + dev, (const struct ethtool_link_ksettings *)&cmd); + phy_start(dev->phydev); + } + + /* + * Configure basic link parameters. + */ + pscr = rdlp(mp, PORT_SERIAL_CONTROL); + + pscr |= SERIAL_PORT_ENABLE; + wrlp(mp, PORT_SERIAL_CONTROL, pscr); + + pscr |= DO_NOT_FORCE_LINK_FAIL; + if (!dev->phydev) + pscr |= FORCE_LINK_PASS; + wrlp(mp, PORT_SERIAL_CONTROL, pscr); + + /* + * Configure TX path and queues. + */ + tx_set_rate(mp, 1000000000, 16777216); + for (i = 0; i < mp->txq_count; i++) { + struct tx_queue *txq = mp->txq + i; + + txq_reset_hw_ptr(txq); + txq_set_rate(txq, 1000000000, 16777216); + txq_set_fixed_prio_mode(txq); + } + + /* + * Receive all unmatched unicast, TCP, UDP, BPDU and broadcast + * frames to RX queue #0, and include the pseudo-header when + * calculating receive checksums. + */ + mv643xx_eth_set_features(mp->dev, mp->dev->features); + + /* + * Treat BPDUs as normal multicasts, and disable partition mode. + */ + wrlp(mp, PORT_CONFIG_EXT, 0x00000000); + + /* + * Add configured unicast addresses to address filter table. + */ + mv643xx_eth_program_unicast_filter(mp->dev); + + /* + * Enable the receive queues. + */ + for (i = 0; i < mp->rxq_count; i++) { + struct rx_queue *rxq = mp->rxq + i; + u32 addr; + + addr = (u32)rxq->rx_desc_dma; + addr += rxq->rx_curr_desc * sizeof(struct rx_desc); + wrlp(mp, RXQ_CURRENT_DESC_PTR(i), addr); + + rxq_enable(rxq); + } +} + +static void mv643xx_eth_recalc_skb_size(struct mv643xx_eth_private *mp) +{ + int skb_size; + + /* + * Reserve 2+14 bytes for an ethernet header (the hardware + * automatically prepends 2 bytes of dummy data to each + * received packet), 16 bytes for up to four VLAN tags, and + * 4 bytes for the trailing FCS -- 36 bytes total. + */ + skb_size = mp->dev->mtu + 36; + + /* + * Make sure that the skb size is a multiple of 8 bytes, as + * the lower three bits of the receive descriptor's buffer + * size field are ignored by the hardware. + */ + mp->skb_size = (skb_size + 7) & ~7; + + /* + * If NET_SKB_PAD is smaller than a cache line, + * netdev_alloc_skb() will cause skb->data to be misaligned + * to a cache line boundary. If this is the case, include + * some extra space to allow re-aligning the data area. + */ + mp->skb_size += SKB_DMA_REALIGN; +} + +static int mv643xx_eth_open(struct net_device *dev) +{ + struct mv643xx_eth_private *mp = netdev_priv(dev); + int err; + int i; + + wrlp(mp, INT_CAUSE, 0); + wrlp(mp, INT_CAUSE_EXT, 0); + rdlp(mp, INT_CAUSE_EXT); + + err = request_irq(dev->irq, mv643xx_eth_irq, + IRQF_SHARED, dev->name, dev); + if (err) { + netdev_err(dev, "can't assign irq\n"); + return -EAGAIN; + } + + mv643xx_eth_recalc_skb_size(mp); + + napi_enable(&mp->napi); + + mp->int_mask = INT_EXT; + + for (i = 0; i < mp->rxq_count; i++) { + err = rxq_init(mp, i); + if (err) { + while (--i >= 0) + rxq_deinit(mp->rxq + i); + goto out; + } + + rxq_refill(mp->rxq + i, INT_MAX); + mp->int_mask |= INT_RX_0 << i; + } + + if (mp->oom) { + mp->rx_oom.expires = jiffies + (HZ / 10); + add_timer(&mp->rx_oom); + } + + for (i = 0; i < mp->txq_count; i++) { + err = txq_init(mp, i); + if (err) { + while (--i >= 0) + txq_deinit(mp->txq + i); + goto out_free; + } + mp->int_mask |= INT_TX_END_0 << i; + } + + add_timer(&mp->mib_counters_timer); + port_start(mp); + + wrlp(mp, INT_MASK_EXT, INT_EXT_LINK_PHY | INT_EXT_TX); + wrlp(mp, INT_MASK, mp->int_mask); + + return 0; + + +out_free: + for (i = 0; i < mp->rxq_count; i++) + rxq_deinit(mp->rxq + i); +out: + napi_disable(&mp->napi); + free_irq(dev->irq, dev); + + return err; +} + +static void port_reset(struct mv643xx_eth_private *mp) +{ + unsigned int data; + int i; + + for (i = 0; i < mp->rxq_count; i++) + rxq_disable(mp->rxq + i); + for (i = 0; i < mp->txq_count; i++) + txq_disable(mp->txq + i); + + while (1) { + u32 ps = rdlp(mp, PORT_STATUS); + + if ((ps & (TX_IN_PROGRESS | TX_FIFO_EMPTY)) == TX_FIFO_EMPTY) + break; + udelay(10); + } + + /* Reset the Enable bit in the Configuration Register */ + data = rdlp(mp, PORT_SERIAL_CONTROL); + data &= ~(SERIAL_PORT_ENABLE | + DO_NOT_FORCE_LINK_FAIL | + FORCE_LINK_PASS); + wrlp(mp, PORT_SERIAL_CONTROL, data); +} + +static int mv643xx_eth_stop(struct net_device *dev) +{ + struct mv643xx_eth_private *mp = netdev_priv(dev); + int i; + + wrlp(mp, INT_MASK_EXT, 0x00000000); + wrlp(mp, INT_MASK, 0x00000000); + rdlp(mp, INT_MASK); + + napi_disable(&mp->napi); + + del_timer_sync(&mp->rx_oom); + + netif_carrier_off(dev); + if (dev->phydev) + phy_stop(dev->phydev); + free_irq(dev->irq, dev); + + port_reset(mp); + mv643xx_eth_get_stats(dev); + mib_counters_update(mp); + del_timer_sync(&mp->mib_counters_timer); + + for (i = 0; i < mp->rxq_count; i++) + rxq_deinit(mp->rxq + i); + for (i = 0; i < mp->txq_count; i++) + txq_deinit(mp->txq + i); + + return 0; +} + +static int mv643xx_eth_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) +{ + int ret; + + if (!dev->phydev) + return -ENOTSUPP; + + ret = phy_mii_ioctl(dev->phydev, ifr, cmd); + if (!ret) + mv643xx_eth_adjust_link(dev); + return ret; +} + +static int mv643xx_eth_change_mtu(struct net_device *dev, int new_mtu) +{ + struct mv643xx_eth_private *mp = netdev_priv(dev); + + dev->mtu = new_mtu; + mv643xx_eth_recalc_skb_size(mp); + tx_set_rate(mp, 1000000000, 16777216); + + if (!netif_running(dev)) + return 0; + + /* + * Stop and then re-open the interface. This will allocate RX + * skbs of the new MTU. + * There is a possible danger that the open will not succeed, + * due to memory being full. + */ + mv643xx_eth_stop(dev); + if (mv643xx_eth_open(dev)) { + netdev_err(dev, + "fatal error on re-opening device after MTU change\n"); + } + + return 0; +} + +static void tx_timeout_task(struct work_struct *ugly) +{ + struct mv643xx_eth_private *mp; + + mp = container_of(ugly, struct mv643xx_eth_private, tx_timeout_task); + if (netif_running(mp->dev)) { + netif_tx_stop_all_queues(mp->dev); + port_reset(mp); + port_start(mp); + netif_tx_wake_all_queues(mp->dev); + } +} + +static void mv643xx_eth_tx_timeout(struct net_device *dev, unsigned int txqueue) +{ + struct mv643xx_eth_private *mp = netdev_priv(dev); + + netdev_info(dev, "tx timeout\n"); + + schedule_work(&mp->tx_timeout_task); +} + +#ifdef CONFIG_NET_POLL_CONTROLLER +static void mv643xx_eth_netpoll(struct net_device *dev) +{ + struct mv643xx_eth_private *mp = netdev_priv(dev); + + wrlp(mp, INT_MASK, 0x00000000); + rdlp(mp, INT_MASK); + + mv643xx_eth_irq(dev->irq, dev); + + wrlp(mp, INT_MASK, mp->int_mask); +} +#endif + + +/* platform glue ************************************************************/ +static void +mv643xx_eth_conf_mbus_windows(struct mv643xx_eth_shared_private *msp, + const struct mbus_dram_target_info *dram) +{ + void __iomem *base = msp->base; + u32 win_enable; + u32 win_protect; + int i; + + for (i = 0; i < 6; i++) { + writel(0, base + WINDOW_BASE(i)); + writel(0, base + WINDOW_SIZE(i)); + if (i < 4) + writel(0, base + WINDOW_REMAP_HIGH(i)); + } + + win_enable = 0x3f; + win_protect = 0; + + for (i = 0; i < dram->num_cs; i++) { + const struct mbus_dram_window *cs = dram->cs + i; + + writel((cs->base & 0xffff0000) | + (cs->mbus_attr << 8) | + dram->mbus_dram_target_id, base + WINDOW_BASE(i)); + writel((cs->size - 1) & 0xffff0000, base + WINDOW_SIZE(i)); + + win_enable &= ~(1 << i); + win_protect |= 3 << (2 * i); + } + + writel(win_enable, base + WINDOW_BAR_ENABLE); + msp->win_protect = win_protect; +} + +static void infer_hw_params(struct mv643xx_eth_shared_private *msp) +{ + /* + * Check whether we have a 14-bit coal limit field in bits + * [21:8], or a 16-bit coal limit in bits [25,21:7] of the + * SDMA config register. + */ + writel(0x02000000, msp->base + 0x0400 + SDMA_CONFIG); + if (readl(msp->base + 0x0400 + SDMA_CONFIG) & 0x02000000) + msp->extended_rx_coal_limit = 1; + else + msp->extended_rx_coal_limit = 0; + + /* + * Check whether the MAC supports TX rate control, and if + * yes, whether its associated registers are in the old or + * the new place. + */ + writel(1, msp->base + 0x0400 + TX_BW_MTU_MOVED); + if (readl(msp->base + 0x0400 + TX_BW_MTU_MOVED) & 1) { + msp->tx_bw_control = TX_BW_CONTROL_NEW_LAYOUT; + } else { + writel(7, msp->base + 0x0400 + TX_BW_RATE); + if (readl(msp->base + 0x0400 + TX_BW_RATE) & 7) + msp->tx_bw_control = TX_BW_CONTROL_OLD_LAYOUT; + else + msp->tx_bw_control = TX_BW_CONTROL_ABSENT; + } +} + +#if defined(CONFIG_OF) +static const struct of_device_id mv643xx_eth_shared_ids[] = { + { .compatible = "marvell,orion-eth", }, + { .compatible = "marvell,kirkwood-eth", }, + { } +}; +MODULE_DEVICE_TABLE(of, mv643xx_eth_shared_ids); +#endif + +#ifdef CONFIG_OF_IRQ +#define mv643xx_eth_property(_np, _name, _v) \ + do { \ + u32 tmp; \ + if (!of_property_read_u32(_np, "marvell," _name, &tmp)) \ + _v = tmp; \ + } while (0) + +static struct platform_device *port_platdev[3]; + +static void mv643xx_eth_shared_of_remove(void) +{ + int n; + + for (n = 0; n < 3; n++) { + platform_device_del(port_platdev[n]); + port_platdev[n] = NULL; + } +} + +static int mv643xx_eth_shared_of_add_port(struct platform_device *pdev, + struct device_node *pnp) +{ + struct platform_device *ppdev; + struct mv643xx_eth_platform_data ppd; + struct resource res; + int ret; + int dev_num = 0; + + memset(&ppd, 0, sizeof(ppd)); + ppd.shared = pdev; + + memset(&res, 0, sizeof(res)); + if (of_irq_to_resource(pnp, 0, &res) <= 0) { + dev_err(&pdev->dev, "missing interrupt on %pOFn\n", pnp); + return -EINVAL; + } + + if (of_property_read_u32(pnp, "reg", &ppd.port_number)) { + dev_err(&pdev->dev, "missing reg property on %pOFn\n", pnp); + return -EINVAL; + } + + if (ppd.port_number >= 3) { + dev_err(&pdev->dev, "invalid reg property on %pOFn\n", pnp); + return -EINVAL; + } + + while (dev_num < 3 && port_platdev[dev_num]) + dev_num++; + + if (dev_num == 3) { + dev_err(&pdev->dev, "too many ports registered\n"); + return -EINVAL; + } + + ret = of_get_mac_address(pnp, ppd.mac_addr); + if (ret == -EPROBE_DEFER) + return ret; + + mv643xx_eth_property(pnp, "tx-queue-size", ppd.tx_queue_size); + mv643xx_eth_property(pnp, "tx-sram-addr", ppd.tx_sram_addr); + mv643xx_eth_property(pnp, "tx-sram-size", ppd.tx_sram_size); + mv643xx_eth_property(pnp, "rx-queue-size", ppd.rx_queue_size); + mv643xx_eth_property(pnp, "rx-sram-addr", ppd.rx_sram_addr); + mv643xx_eth_property(pnp, "rx-sram-size", ppd.rx_sram_size); + + ppd.phy_node = of_parse_phandle(pnp, "phy-handle", 0); + if (!ppd.phy_node) { + ppd.phy_addr = MV643XX_ETH_PHY_NONE; + of_property_read_u32(pnp, "speed", &ppd.speed); + of_property_read_u32(pnp, "duplex", &ppd.duplex); + } + + ppdev = platform_device_alloc(MV643XX_ETH_NAME, dev_num); + if (!ppdev) + return -ENOMEM; + ppdev->dev.coherent_dma_mask = DMA_BIT_MASK(32); + ppdev->dev.of_node = pnp; + + ret = platform_device_add_resources(ppdev, &res, 1); + if (ret) + goto port_err; + + ret = platform_device_add_data(ppdev, &ppd, sizeof(ppd)); + if (ret) + goto port_err; + + ret = platform_device_add(ppdev); + if (ret) + goto port_err; + + port_platdev[dev_num] = ppdev; + + return 0; + +port_err: + platform_device_put(ppdev); + return ret; +} + +static int mv643xx_eth_shared_of_probe(struct platform_device *pdev) +{ + struct mv643xx_eth_shared_platform_data *pd; + struct device_node *pnp, *np = pdev->dev.of_node; + int ret; + + /* bail out if not registered from DT */ + if (!np) + return 0; + + pd = devm_kzalloc(&pdev->dev, sizeof(*pd), GFP_KERNEL); + if (!pd) + return -ENOMEM; + pdev->dev.platform_data = pd; + + mv643xx_eth_property(np, "tx-checksum-limit", pd->tx_csum_limit); + + for_each_available_child_of_node(np, pnp) { + ret = mv643xx_eth_shared_of_add_port(pdev, pnp); + if (ret) { + of_node_put(pnp); + mv643xx_eth_shared_of_remove(); + return ret; + } + } + return 0; +} + +#else +static inline int mv643xx_eth_shared_of_probe(struct platform_device *pdev) +{ + return 0; +} + +static inline void mv643xx_eth_shared_of_remove(void) +{ +} +#endif + +static int mv643xx_eth_shared_probe(struct platform_device *pdev) +{ + static int mv643xx_eth_version_printed; + struct mv643xx_eth_shared_platform_data *pd; + struct mv643xx_eth_shared_private *msp; + const struct mbus_dram_target_info *dram; + struct resource *res; + int ret; + + if (!mv643xx_eth_version_printed++) + pr_notice("MV-643xx 10/100/1000 ethernet driver version %s\n", + mv643xx_eth_driver_version); + + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + if (res == NULL) + return -EINVAL; + + msp = devm_kzalloc(&pdev->dev, sizeof(*msp), GFP_KERNEL); + if (msp == NULL) + return -ENOMEM; + platform_set_drvdata(pdev, msp); + + msp->base = devm_ioremap(&pdev->dev, res->start, resource_size(res)); + if (msp->base == NULL) + return -ENOMEM; + + msp->clk = devm_clk_get(&pdev->dev, NULL); + if (!IS_ERR(msp->clk)) + clk_prepare_enable(msp->clk); + + /* + * (Re-)program MBUS remapping windows if we are asked to. + */ + dram = mv_mbus_dram_info(); + if (dram) + mv643xx_eth_conf_mbus_windows(msp, dram); + + ret = mv643xx_eth_shared_of_probe(pdev); + if (ret) + goto err_put_clk; + pd = dev_get_platdata(&pdev->dev); + + msp->tx_csum_limit = (pd != NULL && pd->tx_csum_limit) ? + pd->tx_csum_limit : 9 * 1024; + infer_hw_params(msp); + + return 0; + +err_put_clk: + if (!IS_ERR(msp->clk)) + clk_disable_unprepare(msp->clk); + return ret; +} + +static int mv643xx_eth_shared_remove(struct platform_device *pdev) +{ + struct mv643xx_eth_shared_private *msp = platform_get_drvdata(pdev); + + mv643xx_eth_shared_of_remove(); + if (!IS_ERR(msp->clk)) + clk_disable_unprepare(msp->clk); + return 0; +} + +static struct platform_driver mv643xx_eth_shared_driver = { + .probe = mv643xx_eth_shared_probe, + .remove = mv643xx_eth_shared_remove, + .driver = { + .name = MV643XX_ETH_SHARED_NAME, + .of_match_table = of_match_ptr(mv643xx_eth_shared_ids), + }, +}; + +static void phy_addr_set(struct mv643xx_eth_private *mp, int phy_addr) +{ + int addr_shift = 5 * mp->port_num; + u32 data; + + data = rdl(mp, PHY_ADDR); + data &= ~(0x1f << addr_shift); + data |= (phy_addr & 0x1f) << addr_shift; + wrl(mp, PHY_ADDR, data); +} + +static int phy_addr_get(struct mv643xx_eth_private *mp) +{ + unsigned int data; + + data = rdl(mp, PHY_ADDR); + + return (data >> (5 * mp->port_num)) & 0x1f; +} + +static void set_params(struct mv643xx_eth_private *mp, + struct mv643xx_eth_platform_data *pd) +{ + struct net_device *dev = mp->dev; + unsigned int tx_ring_size; + + if (is_valid_ether_addr(pd->mac_addr)) { + eth_hw_addr_set(dev, pd->mac_addr); + } else { + u8 addr[ETH_ALEN]; + + uc_addr_get(mp, addr); + eth_hw_addr_set(dev, addr); + } + + mp->rx_ring_size = DEFAULT_RX_QUEUE_SIZE; + if (pd->rx_queue_size) + mp->rx_ring_size = pd->rx_queue_size; + mp->rx_desc_sram_addr = pd->rx_sram_addr; + mp->rx_desc_sram_size = pd->rx_sram_size; + + mp->rxq_count = pd->rx_queue_count ? : 1; + + tx_ring_size = DEFAULT_TX_QUEUE_SIZE; + if (pd->tx_queue_size) + tx_ring_size = pd->tx_queue_size; + + mp->tx_ring_size = clamp_t(unsigned int, tx_ring_size, + MV643XX_MAX_SKB_DESCS * 2, 4096); + if (mp->tx_ring_size != tx_ring_size) + netdev_warn(dev, "TX queue size set to %u (requested %u)\n", + mp->tx_ring_size, tx_ring_size); + + mp->tx_desc_sram_addr = pd->tx_sram_addr; + mp->tx_desc_sram_size = pd->tx_sram_size; + + mp->txq_count = pd->tx_queue_count ? : 1; +} + +static int get_phy_mode(struct mv643xx_eth_private *mp) +{ + struct device *dev = mp->dev->dev.parent; + phy_interface_t iface; + int err; + + if (dev->of_node) + err = of_get_phy_mode(dev->of_node, &iface); + + /* Historical default if unspecified. We could also read/write + * the interface state in the PSC1 + */ + if (!dev->of_node || err) + iface = PHY_INTERFACE_MODE_GMII; + return iface; +} + +static struct phy_device *phy_scan(struct mv643xx_eth_private *mp, + int phy_addr) +{ + struct phy_device *phydev; + int start; + int num; + int i; + char phy_id[MII_BUS_ID_SIZE + 3]; + + if (phy_addr == MV643XX_ETH_PHY_ADDR_DEFAULT) { + start = phy_addr_get(mp) & 0x1f; + num = 32; + } else { + start = phy_addr & 0x1f; + num = 1; + } + + /* Attempt to connect to the PHY using orion-mdio */ + phydev = ERR_PTR(-ENODEV); + for (i = 0; i < num; i++) { + int addr = (start + i) & 0x1f; + + snprintf(phy_id, sizeof(phy_id), PHY_ID_FMT, + "orion-mdio-mii", addr); + + phydev = phy_connect(mp->dev, phy_id, mv643xx_eth_adjust_link, + get_phy_mode(mp)); + if (!IS_ERR(phydev)) { + phy_addr_set(mp, addr); + break; + } + } + + return phydev; +} + +static void phy_init(struct mv643xx_eth_private *mp, int speed, int duplex) +{ + struct net_device *dev = mp->dev; + struct phy_device *phy = dev->phydev; + + if (speed == 0) { + phy->autoneg = AUTONEG_ENABLE; + phy->speed = 0; + phy->duplex = 0; + linkmode_copy(phy->advertising, phy->supported); + linkmode_set_bit(ETHTOOL_LINK_MODE_Autoneg_BIT, + phy->advertising); + } else { + phy->autoneg = AUTONEG_DISABLE; + linkmode_zero(phy->advertising); + phy->speed = speed; + phy->duplex = duplex; + } + phy_start_aneg(phy); +} + +static void init_pscr(struct mv643xx_eth_private *mp, int speed, int duplex) +{ + struct net_device *dev = mp->dev; + u32 pscr; + + pscr = rdlp(mp, PORT_SERIAL_CONTROL); + if (pscr & SERIAL_PORT_ENABLE) { + pscr &= ~SERIAL_PORT_ENABLE; + wrlp(mp, PORT_SERIAL_CONTROL, pscr); + } + + pscr = MAX_RX_PACKET_9700BYTE | SERIAL_PORT_CONTROL_RESERVED; + if (!dev->phydev) { + pscr |= DISABLE_AUTO_NEG_SPEED_GMII; + if (speed == SPEED_1000) + pscr |= SET_GMII_SPEED_TO_1000; + else if (speed == SPEED_100) + pscr |= SET_MII_SPEED_TO_100; + + pscr |= DISABLE_AUTO_NEG_FOR_FLOW_CTRL; + + pscr |= DISABLE_AUTO_NEG_FOR_DUPLEX; + if (duplex == DUPLEX_FULL) + pscr |= SET_FULL_DUPLEX_MODE; + } + + wrlp(mp, PORT_SERIAL_CONTROL, pscr); +} + +static const struct net_device_ops mv643xx_eth_netdev_ops = { + .ndo_open = mv643xx_eth_open, + .ndo_stop = mv643xx_eth_stop, + .ndo_start_xmit = mv643xx_eth_xmit, + .ndo_set_rx_mode = mv643xx_eth_set_rx_mode, + .ndo_set_mac_address = mv643xx_eth_set_mac_address, + .ndo_validate_addr = eth_validate_addr, + .ndo_eth_ioctl = mv643xx_eth_ioctl, + .ndo_change_mtu = mv643xx_eth_change_mtu, + .ndo_set_features = mv643xx_eth_set_features, + .ndo_tx_timeout = mv643xx_eth_tx_timeout, + .ndo_get_stats = mv643xx_eth_get_stats, +#ifdef CONFIG_NET_POLL_CONTROLLER + .ndo_poll_controller = mv643xx_eth_netpoll, +#endif +}; + +static int mv643xx_eth_probe(struct platform_device *pdev) +{ + struct mv643xx_eth_platform_data *pd; + struct mv643xx_eth_private *mp; + struct net_device *dev; + struct phy_device *phydev = NULL; + int err, irq; + + pd = dev_get_platdata(&pdev->dev); + if (pd == NULL) { + dev_err(&pdev->dev, "no mv643xx_eth_platform_data\n"); + return -ENODEV; + } + + if (pd->shared == NULL) { + dev_err(&pdev->dev, "no mv643xx_eth_platform_data->shared\n"); + return -ENODEV; + } + + dev = alloc_etherdev_mq(sizeof(struct mv643xx_eth_private), 8); + if (!dev) + return -ENOMEM; + + SET_NETDEV_DEV(dev, &pdev->dev); + mp = netdev_priv(dev); + platform_set_drvdata(pdev, mp); + + mp->shared = platform_get_drvdata(pd->shared); + mp->base = mp->shared->base + 0x0400 + (pd->port_number << 10); + mp->port_num = pd->port_number; + + mp->dev = dev; + + /* Kirkwood resets some registers on gated clocks. Especially + * CLK125_BYPASS_EN must be cleared but is not available on + * all other SoCs/System Controllers using this driver. + */ + if (of_device_is_compatible(pdev->dev.of_node, + "marvell,kirkwood-eth-port")) + wrlp(mp, PORT_SERIAL_CONTROL1, + rdlp(mp, PORT_SERIAL_CONTROL1) & ~CLK125_BYPASS_EN); + + /* + * Start with a default rate, and if there is a clock, allow + * it to override the default. + */ + mp->t_clk = 133000000; + mp->clk = devm_clk_get(&pdev->dev, NULL); + if (!IS_ERR(mp->clk)) { + clk_prepare_enable(mp->clk); + mp->t_clk = clk_get_rate(mp->clk); + } else if (!IS_ERR(mp->shared->clk)) { + mp->t_clk = clk_get_rate(mp->shared->clk); + } + + set_params(mp, pd); + netif_set_real_num_tx_queues(dev, mp->txq_count); + netif_set_real_num_rx_queues(dev, mp->rxq_count); + + err = 0; + if (pd->phy_node) { + phydev = of_phy_connect(mp->dev, pd->phy_node, + mv643xx_eth_adjust_link, 0, + get_phy_mode(mp)); + if (!phydev) + err = -ENODEV; + else + phy_addr_set(mp, phydev->mdio.addr); + } else if (pd->phy_addr != MV643XX_ETH_PHY_NONE) { + phydev = phy_scan(mp, pd->phy_addr); + + if (IS_ERR(phydev)) + err = PTR_ERR(phydev); + else + phy_init(mp, pd->speed, pd->duplex); + } + if (err == -ENODEV) { + err = -EPROBE_DEFER; + goto out; + } + if (err) + goto out; + + dev->ethtool_ops = &mv643xx_eth_ethtool_ops; + + init_pscr(mp, pd->speed, pd->duplex); + + + mib_counters_clear(mp); + + timer_setup(&mp->mib_counters_timer, mib_counters_timer_wrapper, 0); + mp->mib_counters_timer.expires = jiffies + 30 * HZ; + + spin_lock_init(&mp->mib_counters_lock); + + INIT_WORK(&mp->tx_timeout_task, tx_timeout_task); + + netif_napi_add(dev, &mp->napi, mv643xx_eth_poll); + + timer_setup(&mp->rx_oom, oom_timer_wrapper, 0); + + + irq = platform_get_irq(pdev, 0); + if (WARN_ON(irq < 0)) { + err = irq; + goto out; + } + dev->irq = irq; + + dev->netdev_ops = &mv643xx_eth_netdev_ops; + + dev->watchdog_timeo = 2 * HZ; + dev->base_addr = 0; + + dev->features = NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_TSO; + dev->vlan_features = dev->features; + + dev->features |= NETIF_F_RXCSUM; + dev->hw_features = dev->features; + + dev->priv_flags |= IFF_UNICAST_FLT; + netif_set_tso_max_segs(dev, MV643XX_MAX_TSO_SEGS); + + /* MTU range: 64 - 9500 */ + dev->min_mtu = 64; + dev->max_mtu = 9500; + + if (mp->shared->win_protect) + wrl(mp, WINDOW_PROTECT(mp->port_num), mp->shared->win_protect); + + netif_carrier_off(dev); + + wrlp(mp, SDMA_CONFIG, PORT_SDMA_CONFIG_DEFAULT_VALUE); + + set_rx_coal(mp, 250); + set_tx_coal(mp, 0); + + err = register_netdev(dev); + if (err) + goto out; + + netdev_notice(dev, "port %d with MAC address %pM\n", + mp->port_num, dev->dev_addr); + + if (mp->tx_desc_sram_size > 0) + netdev_notice(dev, "configured with sram\n"); + + return 0; + +out: + if (!IS_ERR(mp->clk)) + clk_disable_unprepare(mp->clk); + free_netdev(dev); + + return err; +} + +static int mv643xx_eth_remove(struct platform_device *pdev) +{ + struct mv643xx_eth_private *mp = platform_get_drvdata(pdev); + struct net_device *dev = mp->dev; + + unregister_netdev(mp->dev); + if (dev->phydev) + phy_disconnect(dev->phydev); + cancel_work_sync(&mp->tx_timeout_task); + + if (!IS_ERR(mp->clk)) + clk_disable_unprepare(mp->clk); + + free_netdev(mp->dev); + + return 0; +} + +static void mv643xx_eth_shutdown(struct platform_device *pdev) +{ + struct mv643xx_eth_private *mp = platform_get_drvdata(pdev); + + /* Mask all interrupts on ethernet port */ + wrlp(mp, INT_MASK, 0); + rdlp(mp, INT_MASK); + + if (netif_running(mp->dev)) + port_reset(mp); +} + +static struct platform_driver mv643xx_eth_driver = { + .probe = mv643xx_eth_probe, + .remove = mv643xx_eth_remove, + .shutdown = mv643xx_eth_shutdown, + .driver = { + .name = MV643XX_ETH_NAME, + }, +}; + +static struct platform_driver * const drivers[] = { + &mv643xx_eth_shared_driver, + &mv643xx_eth_driver, +}; + +static int __init mv643xx_eth_init_module(void) +{ + return platform_register_drivers(drivers, ARRAY_SIZE(drivers)); +} +module_init(mv643xx_eth_init_module); + +static void __exit mv643xx_eth_cleanup_module(void) +{ + platform_unregister_drivers(drivers, ARRAY_SIZE(drivers)); +} +module_exit(mv643xx_eth_cleanup_module); + +MODULE_AUTHOR("Rabeeh Khoury, Assaf Hoffman, Matthew Dharm, " + "Manish Lachwani, Dale Farnsworth and Lennert Buytenhek"); +MODULE_DESCRIPTION("Ethernet driver for Marvell MV643XX"); +MODULE_LICENSE("GPL"); +MODULE_ALIAS("platform:" MV643XX_ETH_SHARED_NAME); +MODULE_ALIAS("platform:" MV643XX_ETH_NAME); diff --git a/drivers/net/ethernet/marvell/mvmdio.c b/drivers/net/ethernet/marvell/mvmdio.c new file mode 100644 index 000000000..ef878973b --- /dev/null +++ b/drivers/net/ethernet/marvell/mvmdio.c @@ -0,0 +1,456 @@ +/* + * Driver for the MDIO interface of Marvell network interfaces. + * + * Since the MDIO interface of Marvell network interfaces is shared + * between all network interfaces, having a single driver allows to + * handle concurrent accesses properly (you may have four Ethernet + * ports, but they in fact share the same SMI interface to access + * the MDIO bus). This driver is currently used by the mvneta and + * mv643xx_eth drivers. + * + * Copyright (C) 2012 Marvell + * + * Thomas Petazzoni <thomas.petazzoni@free-electrons.com> + * + * This file is licensed under the terms of the GNU General Public + * License version 2. This program is licensed "as is" without any + * warranty of any kind, whether express or implied. + */ + +#include <linux/acpi.h> +#include <linux/acpi_mdio.h> +#include <linux/clk.h> +#include <linux/delay.h> +#include <linux/interrupt.h> +#include <linux/io.h> +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/of_device.h> +#include <linux/of_mdio.h> +#include <linux/phy.h> +#include <linux/platform_device.h> +#include <linux/sched.h> +#include <linux/wait.h> + +#define MVMDIO_SMI_DATA_SHIFT 0 +#define MVMDIO_SMI_PHY_ADDR_SHIFT 16 +#define MVMDIO_SMI_PHY_REG_SHIFT 21 +#define MVMDIO_SMI_READ_OPERATION BIT(26) +#define MVMDIO_SMI_WRITE_OPERATION 0 +#define MVMDIO_SMI_READ_VALID BIT(27) +#define MVMDIO_SMI_BUSY BIT(28) +#define MVMDIO_ERR_INT_CAUSE 0x007C +#define MVMDIO_ERR_INT_SMI_DONE 0x00000010 +#define MVMDIO_ERR_INT_MASK 0x0080 + +#define MVMDIO_XSMI_MGNT_REG 0x0 +#define MVMDIO_XSMI_PHYADDR_SHIFT 16 +#define MVMDIO_XSMI_DEVADDR_SHIFT 21 +#define MVMDIO_XSMI_WRITE_OPERATION (0x5 << 26) +#define MVMDIO_XSMI_READ_OPERATION (0x7 << 26) +#define MVMDIO_XSMI_READ_VALID BIT(29) +#define MVMDIO_XSMI_BUSY BIT(30) +#define MVMDIO_XSMI_ADDR_REG 0x8 + +/* + * SMI Timeout measurements: + * - Kirkwood 88F6281 (Globalscale Dreamplug): 45us to 95us (Interrupt) + * - Armada 370 (Globalscale Mirabox): 41us to 43us (Polled) + */ +#define MVMDIO_SMI_TIMEOUT 1000 /* 1000us = 1ms */ +#define MVMDIO_SMI_POLL_INTERVAL_MIN 45 +#define MVMDIO_SMI_POLL_INTERVAL_MAX 55 + +#define MVMDIO_XSMI_POLL_INTERVAL_MIN 150 +#define MVMDIO_XSMI_POLL_INTERVAL_MAX 160 + +struct orion_mdio_dev { + void __iomem *regs; + struct clk *clk[4]; + /* + * If we have access to the error interrupt pin (which is + * somewhat misnamed as it not only reflects internal errors + * but also reflects SMI completion), use that to wait for + * SMI access completion instead of polling the SMI busy bit. + */ + int err_interrupt; + wait_queue_head_t smi_busy_wait; +}; + +enum orion_mdio_bus_type { + BUS_TYPE_SMI, + BUS_TYPE_XSMI +}; + +struct orion_mdio_ops { + int (*is_done)(struct orion_mdio_dev *); + unsigned int poll_interval_min; + unsigned int poll_interval_max; +}; + +/* Wait for the SMI unit to be ready for another operation + */ +static int orion_mdio_wait_ready(const struct orion_mdio_ops *ops, + struct mii_bus *bus) +{ + struct orion_mdio_dev *dev = bus->priv; + unsigned long timeout = usecs_to_jiffies(MVMDIO_SMI_TIMEOUT); + unsigned long end = jiffies + timeout; + int timedout = 0; + + while (1) { + if (ops->is_done(dev)) + return 0; + else if (timedout) + break; + + if (dev->err_interrupt <= 0) { + usleep_range(ops->poll_interval_min, + ops->poll_interval_max); + + if (time_is_before_jiffies(end)) + ++timedout; + } else { + /* wait_event_timeout does not guarantee a delay of at + * least one whole jiffie, so timeout must be no less + * than two. + */ + if (timeout < 2) + timeout = 2; + wait_event_timeout(dev->smi_busy_wait, + ops->is_done(dev), timeout); + + ++timedout; + } + } + + dev_err(bus->parent, "Timeout: SMI busy for too long\n"); + return -ETIMEDOUT; +} + +static int orion_mdio_smi_is_done(struct orion_mdio_dev *dev) +{ + return !(readl(dev->regs) & MVMDIO_SMI_BUSY); +} + +static const struct orion_mdio_ops orion_mdio_smi_ops = { + .is_done = orion_mdio_smi_is_done, + .poll_interval_min = MVMDIO_SMI_POLL_INTERVAL_MIN, + .poll_interval_max = MVMDIO_SMI_POLL_INTERVAL_MAX, +}; + +static int orion_mdio_smi_read(struct mii_bus *bus, int mii_id, + int regnum) +{ + struct orion_mdio_dev *dev = bus->priv; + u32 val; + int ret; + + if (regnum & MII_ADDR_C45) + return -EOPNOTSUPP; + + ret = orion_mdio_wait_ready(&orion_mdio_smi_ops, bus); + if (ret < 0) + return ret; + + writel(((mii_id << MVMDIO_SMI_PHY_ADDR_SHIFT) | + (regnum << MVMDIO_SMI_PHY_REG_SHIFT) | + MVMDIO_SMI_READ_OPERATION), + dev->regs); + + ret = orion_mdio_wait_ready(&orion_mdio_smi_ops, bus); + if (ret < 0) + return ret; + + val = readl(dev->regs); + if (!(val & MVMDIO_SMI_READ_VALID)) { + dev_err(bus->parent, "SMI bus read not valid\n"); + return -ENODEV; + } + + return val & GENMASK(15, 0); +} + +static int orion_mdio_smi_write(struct mii_bus *bus, int mii_id, + int regnum, u16 value) +{ + struct orion_mdio_dev *dev = bus->priv; + int ret; + + if (regnum & MII_ADDR_C45) + return -EOPNOTSUPP; + + ret = orion_mdio_wait_ready(&orion_mdio_smi_ops, bus); + if (ret < 0) + return ret; + + writel(((mii_id << MVMDIO_SMI_PHY_ADDR_SHIFT) | + (regnum << MVMDIO_SMI_PHY_REG_SHIFT) | + MVMDIO_SMI_WRITE_OPERATION | + (value << MVMDIO_SMI_DATA_SHIFT)), + dev->regs); + + return 0; +} + +static int orion_mdio_xsmi_is_done(struct orion_mdio_dev *dev) +{ + return !(readl(dev->regs + MVMDIO_XSMI_MGNT_REG) & MVMDIO_XSMI_BUSY); +} + +static const struct orion_mdio_ops orion_mdio_xsmi_ops = { + .is_done = orion_mdio_xsmi_is_done, + .poll_interval_min = MVMDIO_XSMI_POLL_INTERVAL_MIN, + .poll_interval_max = MVMDIO_XSMI_POLL_INTERVAL_MAX, +}; + +static int orion_mdio_xsmi_read(struct mii_bus *bus, int mii_id, + int regnum) +{ + struct orion_mdio_dev *dev = bus->priv; + u16 dev_addr = (regnum >> 16) & GENMASK(4, 0); + int ret; + + if (!(regnum & MII_ADDR_C45)) + return -EOPNOTSUPP; + + ret = orion_mdio_wait_ready(&orion_mdio_xsmi_ops, bus); + if (ret < 0) + return ret; + + writel(regnum & GENMASK(15, 0), dev->regs + MVMDIO_XSMI_ADDR_REG); + writel((mii_id << MVMDIO_XSMI_PHYADDR_SHIFT) | + (dev_addr << MVMDIO_XSMI_DEVADDR_SHIFT) | + MVMDIO_XSMI_READ_OPERATION, + dev->regs + MVMDIO_XSMI_MGNT_REG); + + ret = orion_mdio_wait_ready(&orion_mdio_xsmi_ops, bus); + if (ret < 0) + return ret; + + if (!(readl(dev->regs + MVMDIO_XSMI_MGNT_REG) & + MVMDIO_XSMI_READ_VALID)) { + dev_err(bus->parent, "XSMI bus read not valid\n"); + return -ENODEV; + } + + return readl(dev->regs + MVMDIO_XSMI_MGNT_REG) & GENMASK(15, 0); +} + +static int orion_mdio_xsmi_write(struct mii_bus *bus, int mii_id, + int regnum, u16 value) +{ + struct orion_mdio_dev *dev = bus->priv; + u16 dev_addr = (regnum >> 16) & GENMASK(4, 0); + int ret; + + if (!(regnum & MII_ADDR_C45)) + return -EOPNOTSUPP; + + ret = orion_mdio_wait_ready(&orion_mdio_xsmi_ops, bus); + if (ret < 0) + return ret; + + writel(regnum & GENMASK(15, 0), dev->regs + MVMDIO_XSMI_ADDR_REG); + writel((mii_id << MVMDIO_XSMI_PHYADDR_SHIFT) | + (dev_addr << MVMDIO_XSMI_DEVADDR_SHIFT) | + MVMDIO_XSMI_WRITE_OPERATION | value, + dev->regs + MVMDIO_XSMI_MGNT_REG); + + return 0; +} + +static irqreturn_t orion_mdio_err_irq(int irq, void *dev_id) +{ + struct orion_mdio_dev *dev = dev_id; + + if (readl(dev->regs + MVMDIO_ERR_INT_CAUSE) & + MVMDIO_ERR_INT_SMI_DONE) { + writel(~MVMDIO_ERR_INT_SMI_DONE, + dev->regs + MVMDIO_ERR_INT_CAUSE); + wake_up(&dev->smi_busy_wait); + return IRQ_HANDLED; + } + + return IRQ_NONE; +} + +static int orion_mdio_probe(struct platform_device *pdev) +{ + enum orion_mdio_bus_type type; + struct resource *r; + struct mii_bus *bus; + struct orion_mdio_dev *dev; + int i, ret; + + type = (enum orion_mdio_bus_type)device_get_match_data(&pdev->dev); + + r = platform_get_resource(pdev, IORESOURCE_MEM, 0); + if (!r) { + dev_err(&pdev->dev, "No SMI register address given\n"); + return -ENODEV; + } + + bus = devm_mdiobus_alloc_size(&pdev->dev, + sizeof(struct orion_mdio_dev)); + if (!bus) + return -ENOMEM; + + switch (type) { + case BUS_TYPE_SMI: + bus->read = orion_mdio_smi_read; + bus->write = orion_mdio_smi_write; + break; + case BUS_TYPE_XSMI: + bus->read = orion_mdio_xsmi_read; + bus->write = orion_mdio_xsmi_write; + break; + } + + bus->name = "orion_mdio_bus"; + snprintf(bus->id, MII_BUS_ID_SIZE, "%s-mii", + dev_name(&pdev->dev)); + bus->parent = &pdev->dev; + + dev = bus->priv; + dev->regs = devm_ioremap(&pdev->dev, r->start, resource_size(r)); + if (!dev->regs) { + dev_err(&pdev->dev, "Unable to remap SMI register\n"); + return -ENODEV; + } + + init_waitqueue_head(&dev->smi_busy_wait); + + if (pdev->dev.of_node) { + for (i = 0; i < ARRAY_SIZE(dev->clk); i++) { + dev->clk[i] = of_clk_get(pdev->dev.of_node, i); + if (PTR_ERR(dev->clk[i]) == -EPROBE_DEFER) { + ret = -EPROBE_DEFER; + goto out_clk; + } + if (IS_ERR(dev->clk[i])) + break; + clk_prepare_enable(dev->clk[i]); + } + + if (!IS_ERR(of_clk_get(pdev->dev.of_node, + ARRAY_SIZE(dev->clk)))) + dev_warn(&pdev->dev, + "unsupported number of clocks, limiting to the first " + __stringify(ARRAY_SIZE(dev->clk)) "\n"); + } else { + dev->clk[0] = clk_get(&pdev->dev, NULL); + if (PTR_ERR(dev->clk[0]) == -EPROBE_DEFER) { + ret = -EPROBE_DEFER; + goto out_clk; + } + if (!IS_ERR(dev->clk[0])) + clk_prepare_enable(dev->clk[0]); + } + + + dev->err_interrupt = platform_get_irq_optional(pdev, 0); + if (dev->err_interrupt > 0 && + resource_size(r) < MVMDIO_ERR_INT_MASK + 4) { + dev_err(&pdev->dev, + "disabling interrupt, resource size is too small\n"); + dev->err_interrupt = 0; + } + if (dev->err_interrupt > 0) { + ret = devm_request_irq(&pdev->dev, dev->err_interrupt, + orion_mdio_err_irq, + IRQF_SHARED, pdev->name, dev); + if (ret) + goto out_mdio; + + writel(MVMDIO_ERR_INT_SMI_DONE, + dev->regs + MVMDIO_ERR_INT_MASK); + + } else if (dev->err_interrupt == -EPROBE_DEFER) { + ret = -EPROBE_DEFER; + goto out_mdio; + } + + /* For the platforms not supporting DT/ACPI fall-back + * to mdiobus_register via of_mdiobus_register. + */ + if (is_acpi_node(pdev->dev.fwnode)) + ret = acpi_mdiobus_register(bus, pdev->dev.fwnode); + else + ret = of_mdiobus_register(bus, pdev->dev.of_node); + if (ret < 0) { + dev_err(&pdev->dev, "Cannot register MDIO bus (%d)\n", ret); + goto out_mdio; + } + + platform_set_drvdata(pdev, bus); + + return 0; + +out_mdio: + if (dev->err_interrupt > 0) + writel(0, dev->regs + MVMDIO_ERR_INT_MASK); + +out_clk: + for (i = 0; i < ARRAY_SIZE(dev->clk); i++) { + if (IS_ERR(dev->clk[i])) + break; + clk_disable_unprepare(dev->clk[i]); + clk_put(dev->clk[i]); + } + + return ret; +} + +static int orion_mdio_remove(struct platform_device *pdev) +{ + struct mii_bus *bus = platform_get_drvdata(pdev); + struct orion_mdio_dev *dev = bus->priv; + int i; + + if (dev->err_interrupt > 0) + writel(0, dev->regs + MVMDIO_ERR_INT_MASK); + mdiobus_unregister(bus); + + for (i = 0; i < ARRAY_SIZE(dev->clk); i++) { + if (IS_ERR(dev->clk[i])) + break; + clk_disable_unprepare(dev->clk[i]); + clk_put(dev->clk[i]); + } + + return 0; +} + +static const struct of_device_id orion_mdio_match[] = { + { .compatible = "marvell,orion-mdio", .data = (void *)BUS_TYPE_SMI }, + { .compatible = "marvell,xmdio", .data = (void *)BUS_TYPE_XSMI }, + { } +}; +MODULE_DEVICE_TABLE(of, orion_mdio_match); + +#ifdef CONFIG_ACPI +static const struct acpi_device_id orion_mdio_acpi_match[] = { + { "MRVL0100", BUS_TYPE_SMI }, + { "MRVL0101", BUS_TYPE_XSMI }, + { }, +}; +MODULE_DEVICE_TABLE(acpi, orion_mdio_acpi_match); +#endif + +static struct platform_driver orion_mdio_driver = { + .probe = orion_mdio_probe, + .remove = orion_mdio_remove, + .driver = { + .name = "orion-mdio", + .of_match_table = orion_mdio_match, + .acpi_match_table = ACPI_PTR(orion_mdio_acpi_match), + }, +}; + +module_platform_driver(orion_mdio_driver); + +MODULE_DESCRIPTION("Marvell MDIO interface driver"); +MODULE_AUTHOR("Thomas Petazzoni <thomas.petazzoni@free-electrons.com>"); +MODULE_LICENSE("GPL"); +MODULE_ALIAS("platform:orion-mdio"); diff --git a/drivers/net/ethernet/marvell/mvneta.c b/drivers/net/ethernet/marvell/mvneta.c new file mode 100644 index 000000000..eb4ebaa1c --- /dev/null +++ b/drivers/net/ethernet/marvell/mvneta.c @@ -0,0 +1,5872 @@ +/* + * Driver for Marvell NETA network card for Armada XP and Armada 370 SoCs. + * + * Copyright (C) 2012 Marvell + * + * Rami Rosen <rosenr@marvell.com> + * Thomas Petazzoni <thomas.petazzoni@free-electrons.com> + * + * This file is licensed under the terms of the GNU General Public + * License version 2. This program is licensed "as is" without any + * warranty of any kind, whether express or implied. + */ + +#include <linux/clk.h> +#include <linux/cpu.h> +#include <linux/etherdevice.h> +#include <linux/if_vlan.h> +#include <linux/inetdevice.h> +#include <linux/interrupt.h> +#include <linux/io.h> +#include <linux/kernel.h> +#include <linux/mbus.h> +#include <linux/module.h> +#include <linux/netdevice.h> +#include <linux/of.h> +#include <linux/of_address.h> +#include <linux/of_irq.h> +#include <linux/of_mdio.h> +#include <linux/of_net.h> +#include <linux/phy/phy.h> +#include <linux/phy.h> +#include <linux/phylink.h> +#include <linux/platform_device.h> +#include <linux/skbuff.h> +#include <net/hwbm.h> +#include "mvneta_bm.h" +#include <net/ip.h> +#include <net/ipv6.h> +#include <net/tso.h> +#include <net/page_pool.h> +#include <net/pkt_cls.h> +#include <linux/bpf_trace.h> + +/* Registers */ +#define MVNETA_RXQ_CONFIG_REG(q) (0x1400 + ((q) << 2)) +#define MVNETA_RXQ_HW_BUF_ALLOC BIT(0) +#define MVNETA_RXQ_SHORT_POOL_ID_SHIFT 4 +#define MVNETA_RXQ_SHORT_POOL_ID_MASK 0x30 +#define MVNETA_RXQ_LONG_POOL_ID_SHIFT 6 +#define MVNETA_RXQ_LONG_POOL_ID_MASK 0xc0 +#define MVNETA_RXQ_PKT_OFFSET_ALL_MASK (0xf << 8) +#define MVNETA_RXQ_PKT_OFFSET_MASK(offs) ((offs) << 8) +#define MVNETA_RXQ_THRESHOLD_REG(q) (0x14c0 + ((q) << 2)) +#define MVNETA_RXQ_NON_OCCUPIED(v) ((v) << 16) +#define MVNETA_RXQ_BASE_ADDR_REG(q) (0x1480 + ((q) << 2)) +#define MVNETA_RXQ_SIZE_REG(q) (0x14a0 + ((q) << 2)) +#define MVNETA_RXQ_BUF_SIZE_SHIFT 19 +#define MVNETA_RXQ_BUF_SIZE_MASK (0x1fff << 19) +#define MVNETA_RXQ_STATUS_REG(q) (0x14e0 + ((q) << 2)) +#define MVNETA_RXQ_OCCUPIED_ALL_MASK 0x3fff +#define MVNETA_RXQ_STATUS_UPDATE_REG(q) (0x1500 + ((q) << 2)) +#define MVNETA_RXQ_ADD_NON_OCCUPIED_SHIFT 16 +#define MVNETA_RXQ_ADD_NON_OCCUPIED_MAX 255 +#define MVNETA_PORT_POOL_BUFFER_SZ_REG(pool) (0x1700 + ((pool) << 2)) +#define MVNETA_PORT_POOL_BUFFER_SZ_SHIFT 3 +#define MVNETA_PORT_POOL_BUFFER_SZ_MASK 0xfff8 +#define MVNETA_PORT_RX_RESET 0x1cc0 +#define MVNETA_PORT_RX_DMA_RESET BIT(0) +#define MVNETA_PHY_ADDR 0x2000 +#define MVNETA_PHY_ADDR_MASK 0x1f +#define MVNETA_MBUS_RETRY 0x2010 +#define MVNETA_UNIT_INTR_CAUSE 0x2080 +#define MVNETA_UNIT_CONTROL 0x20B0 +#define MVNETA_PHY_POLLING_ENABLE BIT(1) +#define MVNETA_WIN_BASE(w) (0x2200 + ((w) << 3)) +#define MVNETA_WIN_SIZE(w) (0x2204 + ((w) << 3)) +#define MVNETA_WIN_REMAP(w) (0x2280 + ((w) << 2)) +#define MVNETA_BASE_ADDR_ENABLE 0x2290 +#define MVNETA_AC5_CNM_DDR_TARGET 0x2 +#define MVNETA_AC5_CNM_DDR_ATTR 0xb +#define MVNETA_ACCESS_PROTECT_ENABLE 0x2294 +#define MVNETA_PORT_CONFIG 0x2400 +#define MVNETA_UNI_PROMISC_MODE BIT(0) +#define MVNETA_DEF_RXQ(q) ((q) << 1) +#define MVNETA_DEF_RXQ_ARP(q) ((q) << 4) +#define MVNETA_TX_UNSET_ERR_SUM BIT(12) +#define MVNETA_DEF_RXQ_TCP(q) ((q) << 16) +#define MVNETA_DEF_RXQ_UDP(q) ((q) << 19) +#define MVNETA_DEF_RXQ_BPDU(q) ((q) << 22) +#define MVNETA_RX_CSUM_WITH_PSEUDO_HDR BIT(25) +#define MVNETA_PORT_CONFIG_DEFL_VALUE(q) (MVNETA_DEF_RXQ(q) | \ + MVNETA_DEF_RXQ_ARP(q) | \ + MVNETA_DEF_RXQ_TCP(q) | \ + MVNETA_DEF_RXQ_UDP(q) | \ + MVNETA_DEF_RXQ_BPDU(q) | \ + MVNETA_TX_UNSET_ERR_SUM | \ + MVNETA_RX_CSUM_WITH_PSEUDO_HDR) +#define MVNETA_PORT_CONFIG_EXTEND 0x2404 +#define MVNETA_MAC_ADDR_LOW 0x2414 +#define MVNETA_MAC_ADDR_HIGH 0x2418 +#define MVNETA_SDMA_CONFIG 0x241c +#define MVNETA_SDMA_BRST_SIZE_16 4 +#define MVNETA_RX_BRST_SZ_MASK(burst) ((burst) << 1) +#define MVNETA_RX_NO_DATA_SWAP BIT(4) +#define MVNETA_TX_NO_DATA_SWAP BIT(5) +#define MVNETA_DESC_SWAP BIT(6) +#define MVNETA_TX_BRST_SZ_MASK(burst) ((burst) << 22) +#define MVNETA_VLAN_PRIO_TO_RXQ 0x2440 +#define MVNETA_VLAN_PRIO_RXQ_MAP(prio, rxq) ((rxq) << ((prio) * 3)) +#define MVNETA_PORT_STATUS 0x2444 +#define MVNETA_TX_IN_PRGRS BIT(0) +#define MVNETA_TX_FIFO_EMPTY BIT(8) +#define MVNETA_RX_MIN_FRAME_SIZE 0x247c +/* Only exists on Armada XP and Armada 370 */ +#define MVNETA_SERDES_CFG 0x24A0 +#define MVNETA_SGMII_SERDES_PROTO 0x0cc7 +#define MVNETA_QSGMII_SERDES_PROTO 0x0667 +#define MVNETA_HSGMII_SERDES_PROTO 0x1107 +#define MVNETA_TYPE_PRIO 0x24bc +#define MVNETA_FORCE_UNI BIT(21) +#define MVNETA_TXQ_CMD_1 0x24e4 +#define MVNETA_TXQ_CMD 0x2448 +#define MVNETA_TXQ_DISABLE_SHIFT 8 +#define MVNETA_TXQ_ENABLE_MASK 0x000000ff +#define MVNETA_RX_DISCARD_FRAME_COUNT 0x2484 +#define MVNETA_OVERRUN_FRAME_COUNT 0x2488 +#define MVNETA_GMAC_CLOCK_DIVIDER 0x24f4 +#define MVNETA_GMAC_1MS_CLOCK_ENABLE BIT(31) +#define MVNETA_ACC_MODE 0x2500 +#define MVNETA_BM_ADDRESS 0x2504 +#define MVNETA_CPU_MAP(cpu) (0x2540 + ((cpu) << 2)) +#define MVNETA_CPU_RXQ_ACCESS_ALL_MASK 0x000000ff +#define MVNETA_CPU_TXQ_ACCESS_ALL_MASK 0x0000ff00 +#define MVNETA_CPU_RXQ_ACCESS(rxq) BIT(rxq) +#define MVNETA_CPU_TXQ_ACCESS(txq) BIT(txq + 8) +#define MVNETA_RXQ_TIME_COAL_REG(q) (0x2580 + ((q) << 2)) + +/* Exception Interrupt Port/Queue Cause register + * + * Their behavior depend of the mapping done using the PCPX2Q + * registers. For a given CPU if the bit associated to a queue is not + * set, then for the register a read from this CPU will always return + * 0 and a write won't do anything + */ + +#define MVNETA_INTR_NEW_CAUSE 0x25a0 +#define MVNETA_INTR_NEW_MASK 0x25a4 + +/* bits 0..7 = TXQ SENT, one bit per queue. + * bits 8..15 = RXQ OCCUP, one bit per queue. + * bits 16..23 = RXQ FREE, one bit per queue. + * bit 29 = OLD_REG_SUM, see old reg ? + * bit 30 = TX_ERR_SUM, one bit for 4 ports + * bit 31 = MISC_SUM, one bit for 4 ports + */ +#define MVNETA_TX_INTR_MASK(nr_txqs) (((1 << nr_txqs) - 1) << 0) +#define MVNETA_TX_INTR_MASK_ALL (0xff << 0) +#define MVNETA_RX_INTR_MASK(nr_rxqs) (((1 << nr_rxqs) - 1) << 8) +#define MVNETA_RX_INTR_MASK_ALL (0xff << 8) +#define MVNETA_MISCINTR_INTR_MASK BIT(31) + +#define MVNETA_INTR_OLD_CAUSE 0x25a8 +#define MVNETA_INTR_OLD_MASK 0x25ac + +/* Data Path Port/Queue Cause Register */ +#define MVNETA_INTR_MISC_CAUSE 0x25b0 +#define MVNETA_INTR_MISC_MASK 0x25b4 + +#define MVNETA_CAUSE_PHY_STATUS_CHANGE BIT(0) +#define MVNETA_CAUSE_LINK_CHANGE BIT(1) +#define MVNETA_CAUSE_PTP BIT(4) + +#define MVNETA_CAUSE_INTERNAL_ADDR_ERR BIT(7) +#define MVNETA_CAUSE_RX_OVERRUN BIT(8) +#define MVNETA_CAUSE_RX_CRC_ERROR BIT(9) +#define MVNETA_CAUSE_RX_LARGE_PKT BIT(10) +#define MVNETA_CAUSE_TX_UNDERUN BIT(11) +#define MVNETA_CAUSE_PRBS_ERR BIT(12) +#define MVNETA_CAUSE_PSC_SYNC_CHANGE BIT(13) +#define MVNETA_CAUSE_SERDES_SYNC_ERR BIT(14) + +#define MVNETA_CAUSE_BMU_ALLOC_ERR_SHIFT 16 +#define MVNETA_CAUSE_BMU_ALLOC_ERR_ALL_MASK (0xF << MVNETA_CAUSE_BMU_ALLOC_ERR_SHIFT) +#define MVNETA_CAUSE_BMU_ALLOC_ERR_MASK(pool) (1 << (MVNETA_CAUSE_BMU_ALLOC_ERR_SHIFT + (pool))) + +#define MVNETA_CAUSE_TXQ_ERROR_SHIFT 24 +#define MVNETA_CAUSE_TXQ_ERROR_ALL_MASK (0xFF << MVNETA_CAUSE_TXQ_ERROR_SHIFT) +#define MVNETA_CAUSE_TXQ_ERROR_MASK(q) (1 << (MVNETA_CAUSE_TXQ_ERROR_SHIFT + (q))) + +#define MVNETA_INTR_ENABLE 0x25b8 +#define MVNETA_TXQ_INTR_ENABLE_ALL_MASK 0x0000ff00 +#define MVNETA_RXQ_INTR_ENABLE_ALL_MASK 0x000000ff + +#define MVNETA_RXQ_CMD 0x2680 +#define MVNETA_RXQ_DISABLE_SHIFT 8 +#define MVNETA_RXQ_ENABLE_MASK 0x000000ff +#define MVETH_TXQ_TOKEN_COUNT_REG(q) (0x2700 + ((q) << 4)) +#define MVETH_TXQ_TOKEN_CFG_REG(q) (0x2704 + ((q) << 4)) +#define MVNETA_GMAC_CTRL_0 0x2c00 +#define MVNETA_GMAC_MAX_RX_SIZE_SHIFT 2 +#define MVNETA_GMAC_MAX_RX_SIZE_MASK 0x7ffc +#define MVNETA_GMAC0_PORT_1000BASE_X BIT(1) +#define MVNETA_GMAC0_PORT_ENABLE BIT(0) +#define MVNETA_GMAC_CTRL_2 0x2c08 +#define MVNETA_GMAC2_INBAND_AN_ENABLE BIT(0) +#define MVNETA_GMAC2_PCS_ENABLE BIT(3) +#define MVNETA_GMAC2_PORT_RGMII BIT(4) +#define MVNETA_GMAC2_PORT_RESET BIT(6) +#define MVNETA_GMAC_STATUS 0x2c10 +#define MVNETA_GMAC_LINK_UP BIT(0) +#define MVNETA_GMAC_SPEED_1000 BIT(1) +#define MVNETA_GMAC_SPEED_100 BIT(2) +#define MVNETA_GMAC_FULL_DUPLEX BIT(3) +#define MVNETA_GMAC_RX_FLOW_CTRL_ENABLE BIT(4) +#define MVNETA_GMAC_TX_FLOW_CTRL_ENABLE BIT(5) +#define MVNETA_GMAC_RX_FLOW_CTRL_ACTIVE BIT(6) +#define MVNETA_GMAC_TX_FLOW_CTRL_ACTIVE BIT(7) +#define MVNETA_GMAC_AN_COMPLETE BIT(11) +#define MVNETA_GMAC_SYNC_OK BIT(14) +#define MVNETA_GMAC_AUTONEG_CONFIG 0x2c0c +#define MVNETA_GMAC_FORCE_LINK_DOWN BIT(0) +#define MVNETA_GMAC_FORCE_LINK_PASS BIT(1) +#define MVNETA_GMAC_INBAND_AN_ENABLE BIT(2) +#define MVNETA_GMAC_AN_BYPASS_ENABLE BIT(3) +#define MVNETA_GMAC_INBAND_RESTART_AN BIT(4) +#define MVNETA_GMAC_CONFIG_MII_SPEED BIT(5) +#define MVNETA_GMAC_CONFIG_GMII_SPEED BIT(6) +#define MVNETA_GMAC_AN_SPEED_EN BIT(7) +#define MVNETA_GMAC_CONFIG_FLOW_CTRL BIT(8) +#define MVNETA_GMAC_ADVERT_SYM_FLOW_CTRL BIT(9) +#define MVNETA_GMAC_AN_FLOW_CTRL_EN BIT(11) +#define MVNETA_GMAC_CONFIG_FULL_DUPLEX BIT(12) +#define MVNETA_GMAC_AN_DUPLEX_EN BIT(13) +#define MVNETA_GMAC_CTRL_4 0x2c90 +#define MVNETA_GMAC4_SHORT_PREAMBLE_ENABLE BIT(1) +#define MVNETA_MIB_COUNTERS_BASE 0x3000 +#define MVNETA_MIB_LATE_COLLISION 0x7c +#define MVNETA_DA_FILT_SPEC_MCAST 0x3400 +#define MVNETA_DA_FILT_OTH_MCAST 0x3500 +#define MVNETA_DA_FILT_UCAST_BASE 0x3600 +#define MVNETA_TXQ_BASE_ADDR_REG(q) (0x3c00 + ((q) << 2)) +#define MVNETA_TXQ_SIZE_REG(q) (0x3c20 + ((q) << 2)) +#define MVNETA_TXQ_SENT_THRESH_ALL_MASK 0x3fff0000 +#define MVNETA_TXQ_SENT_THRESH_MASK(coal) ((coal) << 16) +#define MVNETA_TXQ_UPDATE_REG(q) (0x3c60 + ((q) << 2)) +#define MVNETA_TXQ_DEC_SENT_SHIFT 16 +#define MVNETA_TXQ_DEC_SENT_MASK 0xff +#define MVNETA_TXQ_STATUS_REG(q) (0x3c40 + ((q) << 2)) +#define MVNETA_TXQ_SENT_DESC_SHIFT 16 +#define MVNETA_TXQ_SENT_DESC_MASK 0x3fff0000 +#define MVNETA_PORT_TX_RESET 0x3cf0 +#define MVNETA_PORT_TX_DMA_RESET BIT(0) +#define MVNETA_TXQ_CMD1_REG 0x3e00 +#define MVNETA_TXQ_CMD1_BW_LIM_SEL_V1 BIT(3) +#define MVNETA_TXQ_CMD1_BW_LIM_EN BIT(0) +#define MVNETA_REFILL_NUM_CLK_REG 0x3e08 +#define MVNETA_REFILL_MAX_NUM_CLK 0x0000ffff +#define MVNETA_TX_MTU 0x3e0c +#define MVNETA_TX_TOKEN_SIZE 0x3e14 +#define MVNETA_TX_TOKEN_SIZE_MAX 0xffffffff +#define MVNETA_TXQ_BUCKET_REFILL_REG(q) (0x3e20 + ((q) << 2)) +#define MVNETA_TXQ_BUCKET_REFILL_PERIOD_MASK 0x3ff00000 +#define MVNETA_TXQ_BUCKET_REFILL_PERIOD_SHIFT 20 +#define MVNETA_TXQ_BUCKET_REFILL_VALUE_MAX 0x0007ffff +#define MVNETA_TXQ_TOKEN_SIZE_REG(q) (0x3e40 + ((q) << 2)) +#define MVNETA_TXQ_TOKEN_SIZE_MAX 0x7fffffff + +/* The values of the bucket refill base period and refill period are taken from + * the reference manual, and adds up to a base resolution of 10Kbps. This allows + * to cover all rate-limit values from 10Kbps up to 5Gbps + */ + +/* Base period for the rate limit algorithm */ +#define MVNETA_TXQ_BUCKET_REFILL_BASE_PERIOD_NS 100 + +/* Number of Base Period to wait between each bucket refill */ +#define MVNETA_TXQ_BUCKET_REFILL_PERIOD 1000 + +/* The base resolution for rate limiting, in bps. Any max_rate value should be + * a multiple of that value. + */ +#define MVNETA_TXQ_RATE_LIMIT_RESOLUTION (NSEC_PER_SEC / \ + (MVNETA_TXQ_BUCKET_REFILL_BASE_PERIOD_NS * \ + MVNETA_TXQ_BUCKET_REFILL_PERIOD)) + +#define MVNETA_LPI_CTRL_0 0x2cc0 +#define MVNETA_LPI_CTRL_1 0x2cc4 +#define MVNETA_LPI_REQUEST_ENABLE BIT(0) +#define MVNETA_LPI_CTRL_2 0x2cc8 +#define MVNETA_LPI_STATUS 0x2ccc + +#define MVNETA_CAUSE_TXQ_SENT_DESC_ALL_MASK 0xff + +/* Descriptor ring Macros */ +#define MVNETA_QUEUE_NEXT_DESC(q, index) \ + (((index) < (q)->last_desc) ? ((index) + 1) : 0) + +/* Various constants */ + +/* Coalescing */ +#define MVNETA_TXDONE_COAL_PKTS 0 /* interrupt per packet */ +#define MVNETA_RX_COAL_PKTS 32 +#define MVNETA_RX_COAL_USEC 100 + +/* The two bytes Marvell header. Either contains a special value used + * by Marvell switches when a specific hardware mode is enabled (not + * supported by this driver) or is filled automatically by zeroes on + * the RX side. Those two bytes being at the front of the Ethernet + * header, they allow to have the IP header aligned on a 4 bytes + * boundary automatically: the hardware skips those two bytes on its + * own. + */ +#define MVNETA_MH_SIZE 2 + +#define MVNETA_VLAN_TAG_LEN 4 + +#define MVNETA_TX_CSUM_DEF_SIZE 1600 +#define MVNETA_TX_CSUM_MAX_SIZE 9800 +#define MVNETA_ACC_MODE_EXT1 1 +#define MVNETA_ACC_MODE_EXT2 2 + +#define MVNETA_MAX_DECODE_WIN 6 + +/* Timeout constants */ +#define MVNETA_TX_DISABLE_TIMEOUT_MSEC 1000 +#define MVNETA_RX_DISABLE_TIMEOUT_MSEC 1000 +#define MVNETA_TX_FIFO_EMPTY_TIMEOUT 10000 + +#define MVNETA_TX_MTU_MAX 0x3ffff + +/* The RSS lookup table actually has 256 entries but we do not use + * them yet + */ +#define MVNETA_RSS_LU_TABLE_SIZE 1 + +/* Max number of Rx descriptors */ +#define MVNETA_MAX_RXD 512 + +/* Max number of Tx descriptors */ +#define MVNETA_MAX_TXD 1024 + +/* Max number of allowed TCP segments for software TSO */ +#define MVNETA_MAX_TSO_SEGS 100 + +#define MVNETA_MAX_SKB_DESCS (MVNETA_MAX_TSO_SEGS * 2 + MAX_SKB_FRAGS) + +/* descriptor aligned size */ +#define MVNETA_DESC_ALIGNED_SIZE 32 + +/* Number of bytes to be taken into account by HW when putting incoming data + * to the buffers. It is needed in case NET_SKB_PAD exceeds maximum packet + * offset supported in MVNETA_RXQ_CONFIG_REG(q) registers. + */ +#define MVNETA_RX_PKT_OFFSET_CORRECTION 64 + +#define MVNETA_RX_PKT_SIZE(mtu) \ + ALIGN((mtu) + MVNETA_MH_SIZE + MVNETA_VLAN_TAG_LEN + \ + ETH_HLEN + ETH_FCS_LEN, \ + cache_line_size()) + +/* Driver assumes that the last 3 bits are 0 */ +#define MVNETA_SKB_HEADROOM ALIGN(max(NET_SKB_PAD, XDP_PACKET_HEADROOM), 8) +#define MVNETA_SKB_PAD (SKB_DATA_ALIGN(sizeof(struct skb_shared_info) + \ + MVNETA_SKB_HEADROOM)) +#define MVNETA_MAX_RX_BUF_SIZE (PAGE_SIZE - MVNETA_SKB_PAD) + +#define IS_TSO_HEADER(txq, addr) \ + ((addr >= txq->tso_hdrs_phys) && \ + (addr < txq->tso_hdrs_phys + txq->size * TSO_HEADER_SIZE)) + +#define MVNETA_RX_GET_BM_POOL_ID(rxd) \ + (((rxd)->status & MVNETA_RXD_BM_POOL_MASK) >> MVNETA_RXD_BM_POOL_SHIFT) + +enum { + ETHTOOL_STAT_EEE_WAKEUP, + ETHTOOL_STAT_SKB_ALLOC_ERR, + ETHTOOL_STAT_REFILL_ERR, + ETHTOOL_XDP_REDIRECT, + ETHTOOL_XDP_PASS, + ETHTOOL_XDP_DROP, + ETHTOOL_XDP_TX, + ETHTOOL_XDP_TX_ERR, + ETHTOOL_XDP_XMIT, + ETHTOOL_XDP_XMIT_ERR, + ETHTOOL_MAX_STATS, +}; + +struct mvneta_statistic { + unsigned short offset; + unsigned short type; + const char name[ETH_GSTRING_LEN]; +}; + +#define T_REG_32 32 +#define T_REG_64 64 +#define T_SW 1 + +#define MVNETA_XDP_PASS 0 +#define MVNETA_XDP_DROPPED BIT(0) +#define MVNETA_XDP_TX BIT(1) +#define MVNETA_XDP_REDIR BIT(2) + +static const struct mvneta_statistic mvneta_statistics[] = { + { 0x3000, T_REG_64, "good_octets_received", }, + { 0x3010, T_REG_32, "good_frames_received", }, + { 0x3008, T_REG_32, "bad_octets_received", }, + { 0x3014, T_REG_32, "bad_frames_received", }, + { 0x3018, T_REG_32, "broadcast_frames_received", }, + { 0x301c, T_REG_32, "multicast_frames_received", }, + { 0x3050, T_REG_32, "unrec_mac_control_received", }, + { 0x3058, T_REG_32, "good_fc_received", }, + { 0x305c, T_REG_32, "bad_fc_received", }, + { 0x3060, T_REG_32, "undersize_received", }, + { 0x3064, T_REG_32, "fragments_received", }, + { 0x3068, T_REG_32, "oversize_received", }, + { 0x306c, T_REG_32, "jabber_received", }, + { 0x3070, T_REG_32, "mac_receive_error", }, + { 0x3074, T_REG_32, "bad_crc_event", }, + { 0x3078, T_REG_32, "collision", }, + { 0x307c, T_REG_32, "late_collision", }, + { 0x2484, T_REG_32, "rx_discard", }, + { 0x2488, T_REG_32, "rx_overrun", }, + { 0x3020, T_REG_32, "frames_64_octets", }, + { 0x3024, T_REG_32, "frames_65_to_127_octets", }, + { 0x3028, T_REG_32, "frames_128_to_255_octets", }, + { 0x302c, T_REG_32, "frames_256_to_511_octets", }, + { 0x3030, T_REG_32, "frames_512_to_1023_octets", }, + { 0x3034, T_REG_32, "frames_1024_to_max_octets", }, + { 0x3038, T_REG_64, "good_octets_sent", }, + { 0x3040, T_REG_32, "good_frames_sent", }, + { 0x3044, T_REG_32, "excessive_collision", }, + { 0x3048, T_REG_32, "multicast_frames_sent", }, + { 0x304c, T_REG_32, "broadcast_frames_sent", }, + { 0x3054, T_REG_32, "fc_sent", }, + { 0x300c, T_REG_32, "internal_mac_transmit_err", }, + { ETHTOOL_STAT_EEE_WAKEUP, T_SW, "eee_wakeup_errors", }, + { ETHTOOL_STAT_SKB_ALLOC_ERR, T_SW, "skb_alloc_errors", }, + { ETHTOOL_STAT_REFILL_ERR, T_SW, "refill_errors", }, + { ETHTOOL_XDP_REDIRECT, T_SW, "rx_xdp_redirect", }, + { ETHTOOL_XDP_PASS, T_SW, "rx_xdp_pass", }, + { ETHTOOL_XDP_DROP, T_SW, "rx_xdp_drop", }, + { ETHTOOL_XDP_TX, T_SW, "rx_xdp_tx", }, + { ETHTOOL_XDP_TX_ERR, T_SW, "rx_xdp_tx_errors", }, + { ETHTOOL_XDP_XMIT, T_SW, "tx_xdp_xmit", }, + { ETHTOOL_XDP_XMIT_ERR, T_SW, "tx_xdp_xmit_errors", }, +}; + +struct mvneta_stats { + u64 rx_packets; + u64 rx_bytes; + u64 tx_packets; + u64 tx_bytes; + /* xdp */ + u64 xdp_redirect; + u64 xdp_pass; + u64 xdp_drop; + u64 xdp_xmit; + u64 xdp_xmit_err; + u64 xdp_tx; + u64 xdp_tx_err; +}; + +struct mvneta_ethtool_stats { + struct mvneta_stats ps; + u64 skb_alloc_error; + u64 refill_error; +}; + +struct mvneta_pcpu_stats { + struct u64_stats_sync syncp; + + struct mvneta_ethtool_stats es; + u64 rx_dropped; + u64 rx_errors; +}; + +struct mvneta_pcpu_port { + /* Pointer to the shared port */ + struct mvneta_port *pp; + + /* Pointer to the CPU-local NAPI struct */ + struct napi_struct napi; + + /* Cause of the previous interrupt */ + u32 cause_rx_tx; +}; + +enum { + __MVNETA_DOWN, +}; + +struct mvneta_port { + u8 id; + struct mvneta_pcpu_port __percpu *ports; + struct mvneta_pcpu_stats __percpu *stats; + + unsigned long state; + + int pkt_size; + void __iomem *base; + struct mvneta_rx_queue *rxqs; + struct mvneta_tx_queue *txqs; + struct net_device *dev; + struct hlist_node node_online; + struct hlist_node node_dead; + int rxq_def; + /* Protect the access to the percpu interrupt registers, + * ensuring that the configuration remains coherent. + */ + spinlock_t lock; + bool is_stopped; + + u32 cause_rx_tx; + struct napi_struct napi; + + struct bpf_prog *xdp_prog; + + /* Core clock */ + struct clk *clk; + /* AXI clock */ + struct clk *clk_bus; + u8 mcast_count[256]; + u16 tx_ring_size; + u16 rx_ring_size; + + phy_interface_t phy_interface; + struct device_node *dn; + unsigned int tx_csum_limit; + struct phylink *phylink; + struct phylink_config phylink_config; + struct phylink_pcs phylink_pcs; + struct phy *comphy; + + struct mvneta_bm *bm_priv; + struct mvneta_bm_pool *pool_long; + struct mvneta_bm_pool *pool_short; + int bm_win_id; + + bool eee_enabled; + bool eee_active; + bool tx_lpi_enabled; + + u64 ethtool_stats[ARRAY_SIZE(mvneta_statistics)]; + + u32 indir[MVNETA_RSS_LU_TABLE_SIZE]; + + /* Flags for special SoC configurations */ + bool neta_armada3700; + bool neta_ac5; + u16 rx_offset_correction; + const struct mbus_dram_target_info *dram_target_info; +}; + +/* The mvneta_tx_desc and mvneta_rx_desc structures describe the + * layout of the transmit and reception DMA descriptors, and their + * layout is therefore defined by the hardware design + */ + +#define MVNETA_TX_L3_OFF_SHIFT 0 +#define MVNETA_TX_IP_HLEN_SHIFT 8 +#define MVNETA_TX_L4_UDP BIT(16) +#define MVNETA_TX_L3_IP6 BIT(17) +#define MVNETA_TXD_IP_CSUM BIT(18) +#define MVNETA_TXD_Z_PAD BIT(19) +#define MVNETA_TXD_L_DESC BIT(20) +#define MVNETA_TXD_F_DESC BIT(21) +#define MVNETA_TXD_FLZ_DESC (MVNETA_TXD_Z_PAD | \ + MVNETA_TXD_L_DESC | \ + MVNETA_TXD_F_DESC) +#define MVNETA_TX_L4_CSUM_FULL BIT(30) +#define MVNETA_TX_L4_CSUM_NOT BIT(31) + +#define MVNETA_RXD_ERR_CRC 0x0 +#define MVNETA_RXD_BM_POOL_SHIFT 13 +#define MVNETA_RXD_BM_POOL_MASK (BIT(13) | BIT(14)) +#define MVNETA_RXD_ERR_SUMMARY BIT(16) +#define MVNETA_RXD_ERR_OVERRUN BIT(17) +#define MVNETA_RXD_ERR_LEN BIT(18) +#define MVNETA_RXD_ERR_RESOURCE (BIT(17) | BIT(18)) +#define MVNETA_RXD_ERR_CODE_MASK (BIT(17) | BIT(18)) +#define MVNETA_RXD_L3_IP4 BIT(25) +#define MVNETA_RXD_LAST_DESC BIT(26) +#define MVNETA_RXD_FIRST_DESC BIT(27) +#define MVNETA_RXD_FIRST_LAST_DESC (MVNETA_RXD_FIRST_DESC | \ + MVNETA_RXD_LAST_DESC) +#define MVNETA_RXD_L4_CSUM_OK BIT(30) + +#if defined(__LITTLE_ENDIAN) +struct mvneta_tx_desc { + u32 command; /* Options used by HW for packet transmitting.*/ + u16 reserved1; /* csum_l4 (for future use) */ + u16 data_size; /* Data size of transmitted packet in bytes */ + u32 buf_phys_addr; /* Physical addr of transmitted buffer */ + u32 reserved2; /* hw_cmd - (for future use, PMT) */ + u32 reserved3[4]; /* Reserved - (for future use) */ +}; + +struct mvneta_rx_desc { + u32 status; /* Info about received packet */ + u16 reserved1; /* pnc_info - (for future use, PnC) */ + u16 data_size; /* Size of received packet in bytes */ + + u32 buf_phys_addr; /* Physical address of the buffer */ + u32 reserved2; /* pnc_flow_id (for future use, PnC) */ + + u32 buf_cookie; /* cookie for access to RX buffer in rx path */ + u16 reserved3; /* prefetch_cmd, for future use */ + u16 reserved4; /* csum_l4 - (for future use, PnC) */ + + u32 reserved5; /* pnc_extra PnC (for future use, PnC) */ + u32 reserved6; /* hw_cmd (for future use, PnC and HWF) */ +}; +#else +struct mvneta_tx_desc { + u16 data_size; /* Data size of transmitted packet in bytes */ + u16 reserved1; /* csum_l4 (for future use) */ + u32 command; /* Options used by HW for packet transmitting.*/ + u32 reserved2; /* hw_cmd - (for future use, PMT) */ + u32 buf_phys_addr; /* Physical addr of transmitted buffer */ + u32 reserved3[4]; /* Reserved - (for future use) */ +}; + +struct mvneta_rx_desc { + u16 data_size; /* Size of received packet in bytes */ + u16 reserved1; /* pnc_info - (for future use, PnC) */ + u32 status; /* Info about received packet */ + + u32 reserved2; /* pnc_flow_id (for future use, PnC) */ + u32 buf_phys_addr; /* Physical address of the buffer */ + + u16 reserved4; /* csum_l4 - (for future use, PnC) */ + u16 reserved3; /* prefetch_cmd, for future use */ + u32 buf_cookie; /* cookie for access to RX buffer in rx path */ + + u32 reserved5; /* pnc_extra PnC (for future use, PnC) */ + u32 reserved6; /* hw_cmd (for future use, PnC and HWF) */ +}; +#endif + +enum mvneta_tx_buf_type { + MVNETA_TYPE_SKB, + MVNETA_TYPE_XDP_TX, + MVNETA_TYPE_XDP_NDO, +}; + +struct mvneta_tx_buf { + enum mvneta_tx_buf_type type; + union { + struct xdp_frame *xdpf; + struct sk_buff *skb; + }; +}; + +struct mvneta_tx_queue { + /* Number of this TX queue, in the range 0-7 */ + u8 id; + + /* Number of TX DMA descriptors in the descriptor ring */ + int size; + + /* Number of currently used TX DMA descriptor in the + * descriptor ring + */ + int count; + int pending; + int tx_stop_threshold; + int tx_wake_threshold; + + /* Array of transmitted buffers */ + struct mvneta_tx_buf *buf; + + /* Index of last TX DMA descriptor that was inserted */ + int txq_put_index; + + /* Index of the TX DMA descriptor to be cleaned up */ + int txq_get_index; + + u32 done_pkts_coal; + + /* Virtual address of the TX DMA descriptors array */ + struct mvneta_tx_desc *descs; + + /* DMA address of the TX DMA descriptors array */ + dma_addr_t descs_phys; + + /* Index of the last TX DMA descriptor */ + int last_desc; + + /* Index of the next TX DMA descriptor to process */ + int next_desc_to_proc; + + /* DMA buffers for TSO headers */ + char *tso_hdrs; + + /* DMA address of TSO headers */ + dma_addr_t tso_hdrs_phys; + + /* Affinity mask for CPUs*/ + cpumask_t affinity_mask; +}; + +struct mvneta_rx_queue { + /* rx queue number, in the range 0-7 */ + u8 id; + + /* num of rx descriptors in the rx descriptor ring */ + int size; + + u32 pkts_coal; + u32 time_coal; + + /* page_pool */ + struct page_pool *page_pool; + struct xdp_rxq_info xdp_rxq; + + /* Virtual address of the RX buffer */ + void **buf_virt_addr; + + /* Virtual address of the RX DMA descriptors array */ + struct mvneta_rx_desc *descs; + + /* DMA address of the RX DMA descriptors array */ + dma_addr_t descs_phys; + + /* Index of the last RX DMA descriptor */ + int last_desc; + + /* Index of the next RX DMA descriptor to process */ + int next_desc_to_proc; + + /* Index of first RX DMA descriptor to refill */ + int first_to_refill; + u32 refill_num; +}; + +static enum cpuhp_state online_hpstate; +/* The hardware supports eight (8) rx queues, but we are only allowing + * the first one to be used. Therefore, let's just allocate one queue. + */ +static int rxq_number = 8; +static int txq_number = 8; + +static int rxq_def; + +static int rx_copybreak __read_mostly = 256; + +/* HW BM need that each port be identify by a unique ID */ +static int global_port_id; + +#define MVNETA_DRIVER_NAME "mvneta" +#define MVNETA_DRIVER_VERSION "1.0" + +/* Utility/helper methods */ + +/* Write helper method */ +static void mvreg_write(struct mvneta_port *pp, u32 offset, u32 data) +{ + writel(data, pp->base + offset); +} + +/* Read helper method */ +static u32 mvreg_read(struct mvneta_port *pp, u32 offset) +{ + return readl(pp->base + offset); +} + +/* Increment txq get counter */ +static void mvneta_txq_inc_get(struct mvneta_tx_queue *txq) +{ + txq->txq_get_index++; + if (txq->txq_get_index == txq->size) + txq->txq_get_index = 0; +} + +/* Increment txq put counter */ +static void mvneta_txq_inc_put(struct mvneta_tx_queue *txq) +{ + txq->txq_put_index++; + if (txq->txq_put_index == txq->size) + txq->txq_put_index = 0; +} + + +/* Clear all MIB counters */ +static void mvneta_mib_counters_clear(struct mvneta_port *pp) +{ + int i; + + /* Perform dummy reads from MIB counters */ + for (i = 0; i < MVNETA_MIB_LATE_COLLISION; i += 4) + mvreg_read(pp, (MVNETA_MIB_COUNTERS_BASE + i)); + mvreg_read(pp, MVNETA_RX_DISCARD_FRAME_COUNT); + mvreg_read(pp, MVNETA_OVERRUN_FRAME_COUNT); +} + +/* Get System Network Statistics */ +static void +mvneta_get_stats64(struct net_device *dev, + struct rtnl_link_stats64 *stats) +{ + struct mvneta_port *pp = netdev_priv(dev); + unsigned int start; + int cpu; + + for_each_possible_cpu(cpu) { + struct mvneta_pcpu_stats *cpu_stats; + u64 rx_packets; + u64 rx_bytes; + u64 rx_dropped; + u64 rx_errors; + u64 tx_packets; + u64 tx_bytes; + + cpu_stats = per_cpu_ptr(pp->stats, cpu); + do { + start = u64_stats_fetch_begin_irq(&cpu_stats->syncp); + rx_packets = cpu_stats->es.ps.rx_packets; + rx_bytes = cpu_stats->es.ps.rx_bytes; + rx_dropped = cpu_stats->rx_dropped; + rx_errors = cpu_stats->rx_errors; + tx_packets = cpu_stats->es.ps.tx_packets; + tx_bytes = cpu_stats->es.ps.tx_bytes; + } while (u64_stats_fetch_retry_irq(&cpu_stats->syncp, start)); + + stats->rx_packets += rx_packets; + stats->rx_bytes += rx_bytes; + stats->rx_dropped += rx_dropped; + stats->rx_errors += rx_errors; + stats->tx_packets += tx_packets; + stats->tx_bytes += tx_bytes; + } + + stats->tx_dropped = dev->stats.tx_dropped; +} + +/* Rx descriptors helper methods */ + +/* Checks whether the RX descriptor having this status is both the first + * and the last descriptor for the RX packet. Each RX packet is currently + * received through a single RX descriptor, so not having each RX + * descriptor with its first and last bits set is an error + */ +static int mvneta_rxq_desc_is_first_last(u32 status) +{ + return (status & MVNETA_RXD_FIRST_LAST_DESC) == + MVNETA_RXD_FIRST_LAST_DESC; +} + +/* Add number of descriptors ready to receive new packets */ +static void mvneta_rxq_non_occup_desc_add(struct mvneta_port *pp, + struct mvneta_rx_queue *rxq, + int ndescs) +{ + /* Only MVNETA_RXQ_ADD_NON_OCCUPIED_MAX (255) descriptors can + * be added at once + */ + while (ndescs > MVNETA_RXQ_ADD_NON_OCCUPIED_MAX) { + mvreg_write(pp, MVNETA_RXQ_STATUS_UPDATE_REG(rxq->id), + (MVNETA_RXQ_ADD_NON_OCCUPIED_MAX << + MVNETA_RXQ_ADD_NON_OCCUPIED_SHIFT)); + ndescs -= MVNETA_RXQ_ADD_NON_OCCUPIED_MAX; + } + + mvreg_write(pp, MVNETA_RXQ_STATUS_UPDATE_REG(rxq->id), + (ndescs << MVNETA_RXQ_ADD_NON_OCCUPIED_SHIFT)); +} + +/* Get number of RX descriptors occupied by received packets */ +static int mvneta_rxq_busy_desc_num_get(struct mvneta_port *pp, + struct mvneta_rx_queue *rxq) +{ + u32 val; + + val = mvreg_read(pp, MVNETA_RXQ_STATUS_REG(rxq->id)); + return val & MVNETA_RXQ_OCCUPIED_ALL_MASK; +} + +/* Update num of rx desc called upon return from rx path or + * from mvneta_rxq_drop_pkts(). + */ +static void mvneta_rxq_desc_num_update(struct mvneta_port *pp, + struct mvneta_rx_queue *rxq, + int rx_done, int rx_filled) +{ + u32 val; + + if ((rx_done <= 0xff) && (rx_filled <= 0xff)) { + val = rx_done | + (rx_filled << MVNETA_RXQ_ADD_NON_OCCUPIED_SHIFT); + mvreg_write(pp, MVNETA_RXQ_STATUS_UPDATE_REG(rxq->id), val); + return; + } + + /* Only 255 descriptors can be added at once */ + while ((rx_done > 0) || (rx_filled > 0)) { + if (rx_done <= 0xff) { + val = rx_done; + rx_done = 0; + } else { + val = 0xff; + rx_done -= 0xff; + } + if (rx_filled <= 0xff) { + val |= rx_filled << MVNETA_RXQ_ADD_NON_OCCUPIED_SHIFT; + rx_filled = 0; + } else { + val |= 0xff << MVNETA_RXQ_ADD_NON_OCCUPIED_SHIFT; + rx_filled -= 0xff; + } + mvreg_write(pp, MVNETA_RXQ_STATUS_UPDATE_REG(rxq->id), val); + } +} + +/* Get pointer to next RX descriptor to be processed by SW */ +static struct mvneta_rx_desc * +mvneta_rxq_next_desc_get(struct mvneta_rx_queue *rxq) +{ + int rx_desc = rxq->next_desc_to_proc; + + rxq->next_desc_to_proc = MVNETA_QUEUE_NEXT_DESC(rxq, rx_desc); + prefetch(rxq->descs + rxq->next_desc_to_proc); + return rxq->descs + rx_desc; +} + +/* Change maximum receive size of the port. */ +static void mvneta_max_rx_size_set(struct mvneta_port *pp, int max_rx_size) +{ + u32 val; + + val = mvreg_read(pp, MVNETA_GMAC_CTRL_0); + val &= ~MVNETA_GMAC_MAX_RX_SIZE_MASK; + val |= ((max_rx_size - MVNETA_MH_SIZE) / 2) << + MVNETA_GMAC_MAX_RX_SIZE_SHIFT; + mvreg_write(pp, MVNETA_GMAC_CTRL_0, val); +} + + +/* Set rx queue offset */ +static void mvneta_rxq_offset_set(struct mvneta_port *pp, + struct mvneta_rx_queue *rxq, + int offset) +{ + u32 val; + + val = mvreg_read(pp, MVNETA_RXQ_CONFIG_REG(rxq->id)); + val &= ~MVNETA_RXQ_PKT_OFFSET_ALL_MASK; + + /* Offset is in */ + val |= MVNETA_RXQ_PKT_OFFSET_MASK(offset >> 3); + mvreg_write(pp, MVNETA_RXQ_CONFIG_REG(rxq->id), val); +} + + +/* Tx descriptors helper methods */ + +/* Update HW with number of TX descriptors to be sent */ +static void mvneta_txq_pend_desc_add(struct mvneta_port *pp, + struct mvneta_tx_queue *txq, + int pend_desc) +{ + u32 val; + + pend_desc += txq->pending; + + /* Only 255 Tx descriptors can be added at once */ + do { + val = min(pend_desc, 255); + mvreg_write(pp, MVNETA_TXQ_UPDATE_REG(txq->id), val); + pend_desc -= val; + } while (pend_desc > 0); + txq->pending = 0; +} + +/* Get pointer to next TX descriptor to be processed (send) by HW */ +static struct mvneta_tx_desc * +mvneta_txq_next_desc_get(struct mvneta_tx_queue *txq) +{ + int tx_desc = txq->next_desc_to_proc; + + txq->next_desc_to_proc = MVNETA_QUEUE_NEXT_DESC(txq, tx_desc); + return txq->descs + tx_desc; +} + +/* Release the last allocated TX descriptor. Useful to handle DMA + * mapping failures in the TX path. + */ +static void mvneta_txq_desc_put(struct mvneta_tx_queue *txq) +{ + if (txq->next_desc_to_proc == 0) + txq->next_desc_to_proc = txq->last_desc - 1; + else + txq->next_desc_to_proc--; +} + +/* Set rxq buf size */ +static void mvneta_rxq_buf_size_set(struct mvneta_port *pp, + struct mvneta_rx_queue *rxq, + int buf_size) +{ + u32 val; + + val = mvreg_read(pp, MVNETA_RXQ_SIZE_REG(rxq->id)); + + val &= ~MVNETA_RXQ_BUF_SIZE_MASK; + val |= ((buf_size >> 3) << MVNETA_RXQ_BUF_SIZE_SHIFT); + + mvreg_write(pp, MVNETA_RXQ_SIZE_REG(rxq->id), val); +} + +/* Disable buffer management (BM) */ +static void mvneta_rxq_bm_disable(struct mvneta_port *pp, + struct mvneta_rx_queue *rxq) +{ + u32 val; + + val = mvreg_read(pp, MVNETA_RXQ_CONFIG_REG(rxq->id)); + val &= ~MVNETA_RXQ_HW_BUF_ALLOC; + mvreg_write(pp, MVNETA_RXQ_CONFIG_REG(rxq->id), val); +} + +/* Enable buffer management (BM) */ +static void mvneta_rxq_bm_enable(struct mvneta_port *pp, + struct mvneta_rx_queue *rxq) +{ + u32 val; + + val = mvreg_read(pp, MVNETA_RXQ_CONFIG_REG(rxq->id)); + val |= MVNETA_RXQ_HW_BUF_ALLOC; + mvreg_write(pp, MVNETA_RXQ_CONFIG_REG(rxq->id), val); +} + +/* Notify HW about port's assignment of pool for bigger packets */ +static void mvneta_rxq_long_pool_set(struct mvneta_port *pp, + struct mvneta_rx_queue *rxq) +{ + u32 val; + + val = mvreg_read(pp, MVNETA_RXQ_CONFIG_REG(rxq->id)); + val &= ~MVNETA_RXQ_LONG_POOL_ID_MASK; + val |= (pp->pool_long->id << MVNETA_RXQ_LONG_POOL_ID_SHIFT); + + mvreg_write(pp, MVNETA_RXQ_CONFIG_REG(rxq->id), val); +} + +/* Notify HW about port's assignment of pool for smaller packets */ +static void mvneta_rxq_short_pool_set(struct mvneta_port *pp, + struct mvneta_rx_queue *rxq) +{ + u32 val; + + val = mvreg_read(pp, MVNETA_RXQ_CONFIG_REG(rxq->id)); + val &= ~MVNETA_RXQ_SHORT_POOL_ID_MASK; + val |= (pp->pool_short->id << MVNETA_RXQ_SHORT_POOL_ID_SHIFT); + + mvreg_write(pp, MVNETA_RXQ_CONFIG_REG(rxq->id), val); +} + +/* Set port's receive buffer size for assigned BM pool */ +static inline void mvneta_bm_pool_bufsize_set(struct mvneta_port *pp, + int buf_size, + u8 pool_id) +{ + u32 val; + + if (!IS_ALIGNED(buf_size, 8)) { + dev_warn(pp->dev->dev.parent, + "illegal buf_size value %d, round to %d\n", + buf_size, ALIGN(buf_size, 8)); + buf_size = ALIGN(buf_size, 8); + } + + val = mvreg_read(pp, MVNETA_PORT_POOL_BUFFER_SZ_REG(pool_id)); + val |= buf_size & MVNETA_PORT_POOL_BUFFER_SZ_MASK; + mvreg_write(pp, MVNETA_PORT_POOL_BUFFER_SZ_REG(pool_id), val); +} + +/* Configure MBUS window in order to enable access BM internal SRAM */ +static int mvneta_mbus_io_win_set(struct mvneta_port *pp, u32 base, u32 wsize, + u8 target, u8 attr) +{ + u32 win_enable, win_protect; + int i; + + win_enable = mvreg_read(pp, MVNETA_BASE_ADDR_ENABLE); + + if (pp->bm_win_id < 0) { + /* Find first not occupied window */ + for (i = 0; i < MVNETA_MAX_DECODE_WIN; i++) { + if (win_enable & (1 << i)) { + pp->bm_win_id = i; + break; + } + } + if (i == MVNETA_MAX_DECODE_WIN) + return -ENOMEM; + } else { + i = pp->bm_win_id; + } + + mvreg_write(pp, MVNETA_WIN_BASE(i), 0); + mvreg_write(pp, MVNETA_WIN_SIZE(i), 0); + + if (i < 4) + mvreg_write(pp, MVNETA_WIN_REMAP(i), 0); + + mvreg_write(pp, MVNETA_WIN_BASE(i), (base & 0xffff0000) | + (attr << 8) | target); + + mvreg_write(pp, MVNETA_WIN_SIZE(i), (wsize - 1) & 0xffff0000); + + win_protect = mvreg_read(pp, MVNETA_ACCESS_PROTECT_ENABLE); + win_protect |= 3 << (2 * i); + mvreg_write(pp, MVNETA_ACCESS_PROTECT_ENABLE, win_protect); + + win_enable &= ~(1 << i); + mvreg_write(pp, MVNETA_BASE_ADDR_ENABLE, win_enable); + + return 0; +} + +static int mvneta_bm_port_mbus_init(struct mvneta_port *pp) +{ + u32 wsize; + u8 target, attr; + int err; + + /* Get BM window information */ + err = mvebu_mbus_get_io_win_info(pp->bm_priv->bppi_phys_addr, &wsize, + &target, &attr); + if (err < 0) + return err; + + pp->bm_win_id = -1; + + /* Open NETA -> BM window */ + err = mvneta_mbus_io_win_set(pp, pp->bm_priv->bppi_phys_addr, wsize, + target, attr); + if (err < 0) { + netdev_info(pp->dev, "fail to configure mbus window to BM\n"); + return err; + } + return 0; +} + +/* Assign and initialize pools for port. In case of fail + * buffer manager will remain disabled for current port. + */ +static int mvneta_bm_port_init(struct platform_device *pdev, + struct mvneta_port *pp) +{ + struct device_node *dn = pdev->dev.of_node; + u32 long_pool_id, short_pool_id; + + if (!pp->neta_armada3700) { + int ret; + + ret = mvneta_bm_port_mbus_init(pp); + if (ret) + return ret; + } + + if (of_property_read_u32(dn, "bm,pool-long", &long_pool_id)) { + netdev_info(pp->dev, "missing long pool id\n"); + return -EINVAL; + } + + /* Create port's long pool depending on mtu */ + pp->pool_long = mvneta_bm_pool_use(pp->bm_priv, long_pool_id, + MVNETA_BM_LONG, pp->id, + MVNETA_RX_PKT_SIZE(pp->dev->mtu)); + if (!pp->pool_long) { + netdev_info(pp->dev, "fail to obtain long pool for port\n"); + return -ENOMEM; + } + + pp->pool_long->port_map |= 1 << pp->id; + + mvneta_bm_pool_bufsize_set(pp, pp->pool_long->buf_size, + pp->pool_long->id); + + /* If short pool id is not defined, assume using single pool */ + if (of_property_read_u32(dn, "bm,pool-short", &short_pool_id)) + short_pool_id = long_pool_id; + + /* Create port's short pool */ + pp->pool_short = mvneta_bm_pool_use(pp->bm_priv, short_pool_id, + MVNETA_BM_SHORT, pp->id, + MVNETA_BM_SHORT_PKT_SIZE); + if (!pp->pool_short) { + netdev_info(pp->dev, "fail to obtain short pool for port\n"); + mvneta_bm_pool_destroy(pp->bm_priv, pp->pool_long, 1 << pp->id); + return -ENOMEM; + } + + if (short_pool_id != long_pool_id) { + pp->pool_short->port_map |= 1 << pp->id; + mvneta_bm_pool_bufsize_set(pp, pp->pool_short->buf_size, + pp->pool_short->id); + } + + return 0; +} + +/* Update settings of a pool for bigger packets */ +static void mvneta_bm_update_mtu(struct mvneta_port *pp, int mtu) +{ + struct mvneta_bm_pool *bm_pool = pp->pool_long; + struct hwbm_pool *hwbm_pool = &bm_pool->hwbm_pool; + int num; + + /* Release all buffers from long pool */ + mvneta_bm_bufs_free(pp->bm_priv, bm_pool, 1 << pp->id); + if (hwbm_pool->buf_num) { + WARN(1, "cannot free all buffers in pool %d\n", + bm_pool->id); + goto bm_mtu_err; + } + + bm_pool->pkt_size = MVNETA_RX_PKT_SIZE(mtu); + bm_pool->buf_size = MVNETA_RX_BUF_SIZE(bm_pool->pkt_size); + hwbm_pool->frag_size = SKB_DATA_ALIGN(sizeof(struct skb_shared_info)) + + SKB_DATA_ALIGN(MVNETA_RX_BUF_SIZE(bm_pool->pkt_size)); + + /* Fill entire long pool */ + num = hwbm_pool_add(hwbm_pool, hwbm_pool->size); + if (num != hwbm_pool->size) { + WARN(1, "pool %d: %d of %d allocated\n", + bm_pool->id, num, hwbm_pool->size); + goto bm_mtu_err; + } + mvneta_bm_pool_bufsize_set(pp, bm_pool->buf_size, bm_pool->id); + + return; + +bm_mtu_err: + mvneta_bm_pool_destroy(pp->bm_priv, pp->pool_long, 1 << pp->id); + mvneta_bm_pool_destroy(pp->bm_priv, pp->pool_short, 1 << pp->id); + + pp->bm_priv = NULL; + pp->rx_offset_correction = MVNETA_SKB_HEADROOM; + mvreg_write(pp, MVNETA_ACC_MODE, MVNETA_ACC_MODE_EXT1); + netdev_info(pp->dev, "fail to update MTU, fall back to software BM\n"); +} + +/* Start the Ethernet port RX and TX activity */ +static void mvneta_port_up(struct mvneta_port *pp) +{ + int queue; + u32 q_map; + + /* Enable all initialized TXs. */ + q_map = 0; + for (queue = 0; queue < txq_number; queue++) { + struct mvneta_tx_queue *txq = &pp->txqs[queue]; + if (txq->descs) + q_map |= (1 << queue); + } + mvreg_write(pp, MVNETA_TXQ_CMD, q_map); + + q_map = 0; + /* Enable all initialized RXQs. */ + for (queue = 0; queue < rxq_number; queue++) { + struct mvneta_rx_queue *rxq = &pp->rxqs[queue]; + + if (rxq->descs) + q_map |= (1 << queue); + } + mvreg_write(pp, MVNETA_RXQ_CMD, q_map); +} + +/* Stop the Ethernet port activity */ +static void mvneta_port_down(struct mvneta_port *pp) +{ + u32 val; + int count; + + /* Stop Rx port activity. Check port Rx activity. */ + val = mvreg_read(pp, MVNETA_RXQ_CMD) & MVNETA_RXQ_ENABLE_MASK; + + /* Issue stop command for active channels only */ + if (val != 0) + mvreg_write(pp, MVNETA_RXQ_CMD, + val << MVNETA_RXQ_DISABLE_SHIFT); + + /* Wait for all Rx activity to terminate. */ + count = 0; + do { + if (count++ >= MVNETA_RX_DISABLE_TIMEOUT_MSEC) { + netdev_warn(pp->dev, + "TIMEOUT for RX stopped ! rx_queue_cmd: 0x%08x\n", + val); + break; + } + mdelay(1); + + val = mvreg_read(pp, MVNETA_RXQ_CMD); + } while (val & MVNETA_RXQ_ENABLE_MASK); + + /* Stop Tx port activity. Check port Tx activity. Issue stop + * command for active channels only + */ + val = (mvreg_read(pp, MVNETA_TXQ_CMD)) & MVNETA_TXQ_ENABLE_MASK; + + if (val != 0) + mvreg_write(pp, MVNETA_TXQ_CMD, + (val << MVNETA_TXQ_DISABLE_SHIFT)); + + /* Wait for all Tx activity to terminate. */ + count = 0; + do { + if (count++ >= MVNETA_TX_DISABLE_TIMEOUT_MSEC) { + netdev_warn(pp->dev, + "TIMEOUT for TX stopped status=0x%08x\n", + val); + break; + } + mdelay(1); + + /* Check TX Command reg that all Txqs are stopped */ + val = mvreg_read(pp, MVNETA_TXQ_CMD); + + } while (val & MVNETA_TXQ_ENABLE_MASK); + + /* Double check to verify that TX FIFO is empty */ + count = 0; + do { + if (count++ >= MVNETA_TX_FIFO_EMPTY_TIMEOUT) { + netdev_warn(pp->dev, + "TX FIFO empty timeout status=0x%08x\n", + val); + break; + } + mdelay(1); + + val = mvreg_read(pp, MVNETA_PORT_STATUS); + } while (!(val & MVNETA_TX_FIFO_EMPTY) && + (val & MVNETA_TX_IN_PRGRS)); + + udelay(200); +} + +/* Enable the port by setting the port enable bit of the MAC control register */ +static void mvneta_port_enable(struct mvneta_port *pp) +{ + u32 val; + + /* Enable port */ + val = mvreg_read(pp, MVNETA_GMAC_CTRL_0); + val |= MVNETA_GMAC0_PORT_ENABLE; + mvreg_write(pp, MVNETA_GMAC_CTRL_0, val); +} + +/* Disable the port and wait for about 200 usec before retuning */ +static void mvneta_port_disable(struct mvneta_port *pp) +{ + u32 val; + + /* Reset the Enable bit in the Serial Control Register */ + val = mvreg_read(pp, MVNETA_GMAC_CTRL_0); + val &= ~MVNETA_GMAC0_PORT_ENABLE; + mvreg_write(pp, MVNETA_GMAC_CTRL_0, val); + + udelay(200); +} + +/* Multicast tables methods */ + +/* Set all entries in Unicast MAC Table; queue==-1 means reject all */ +static void mvneta_set_ucast_table(struct mvneta_port *pp, int queue) +{ + int offset; + u32 val; + + if (queue == -1) { + val = 0; + } else { + val = 0x1 | (queue << 1); + val |= (val << 24) | (val << 16) | (val << 8); + } + + for (offset = 0; offset <= 0xc; offset += 4) + mvreg_write(pp, MVNETA_DA_FILT_UCAST_BASE + offset, val); +} + +/* Set all entries in Special Multicast MAC Table; queue==-1 means reject all */ +static void mvneta_set_special_mcast_table(struct mvneta_port *pp, int queue) +{ + int offset; + u32 val; + + if (queue == -1) { + val = 0; + } else { + val = 0x1 | (queue << 1); + val |= (val << 24) | (val << 16) | (val << 8); + } + + for (offset = 0; offset <= 0xfc; offset += 4) + mvreg_write(pp, MVNETA_DA_FILT_SPEC_MCAST + offset, val); + +} + +/* Set all entries in Other Multicast MAC Table. queue==-1 means reject all */ +static void mvneta_set_other_mcast_table(struct mvneta_port *pp, int queue) +{ + int offset; + u32 val; + + if (queue == -1) { + memset(pp->mcast_count, 0, sizeof(pp->mcast_count)); + val = 0; + } else { + memset(pp->mcast_count, 1, sizeof(pp->mcast_count)); + val = 0x1 | (queue << 1); + val |= (val << 24) | (val << 16) | (val << 8); + } + + for (offset = 0; offset <= 0xfc; offset += 4) + mvreg_write(pp, MVNETA_DA_FILT_OTH_MCAST + offset, val); +} + +static void mvneta_percpu_unmask_interrupt(void *arg) +{ + struct mvneta_port *pp = arg; + + /* All the queue are unmasked, but actually only the ones + * mapped to this CPU will be unmasked + */ + mvreg_write(pp, MVNETA_INTR_NEW_MASK, + MVNETA_RX_INTR_MASK_ALL | + MVNETA_TX_INTR_MASK_ALL | + MVNETA_MISCINTR_INTR_MASK); +} + +static void mvneta_percpu_mask_interrupt(void *arg) +{ + struct mvneta_port *pp = arg; + + /* All the queue are masked, but actually only the ones + * mapped to this CPU will be masked + */ + mvreg_write(pp, MVNETA_INTR_NEW_MASK, 0); + mvreg_write(pp, MVNETA_INTR_OLD_MASK, 0); + mvreg_write(pp, MVNETA_INTR_MISC_MASK, 0); +} + +static void mvneta_percpu_clear_intr_cause(void *arg) +{ + struct mvneta_port *pp = arg; + + /* All the queue are cleared, but actually only the ones + * mapped to this CPU will be cleared + */ + mvreg_write(pp, MVNETA_INTR_NEW_CAUSE, 0); + mvreg_write(pp, MVNETA_INTR_MISC_CAUSE, 0); + mvreg_write(pp, MVNETA_INTR_OLD_CAUSE, 0); +} + +/* This method sets defaults to the NETA port: + * Clears interrupt Cause and Mask registers. + * Clears all MAC tables. + * Sets defaults to all registers. + * Resets RX and TX descriptor rings. + * Resets PHY. + * This method can be called after mvneta_port_down() to return the port + * settings to defaults. + */ +static void mvneta_defaults_set(struct mvneta_port *pp) +{ + int cpu; + int queue; + u32 val; + int max_cpu = num_present_cpus(); + + /* Clear all Cause registers */ + on_each_cpu(mvneta_percpu_clear_intr_cause, pp, true); + + /* Mask all interrupts */ + on_each_cpu(mvneta_percpu_mask_interrupt, pp, true); + mvreg_write(pp, MVNETA_INTR_ENABLE, 0); + + /* Enable MBUS Retry bit16 */ + mvreg_write(pp, MVNETA_MBUS_RETRY, 0x20); + + /* Set CPU queue access map. CPUs are assigned to the RX and + * TX queues modulo their number. If there is only one TX + * queue then it is assigned to the CPU associated to the + * default RX queue. + */ + for_each_present_cpu(cpu) { + int rxq_map = 0, txq_map = 0; + int rxq, txq; + if (!pp->neta_armada3700) { + for (rxq = 0; rxq < rxq_number; rxq++) + if ((rxq % max_cpu) == cpu) + rxq_map |= MVNETA_CPU_RXQ_ACCESS(rxq); + + for (txq = 0; txq < txq_number; txq++) + if ((txq % max_cpu) == cpu) + txq_map |= MVNETA_CPU_TXQ_ACCESS(txq); + + /* With only one TX queue we configure a special case + * which will allow to get all the irq on a single + * CPU + */ + if (txq_number == 1) + txq_map = (cpu == pp->rxq_def) ? + MVNETA_CPU_TXQ_ACCESS(0) : 0; + + } else { + txq_map = MVNETA_CPU_TXQ_ACCESS_ALL_MASK; + rxq_map = MVNETA_CPU_RXQ_ACCESS_ALL_MASK; + } + + mvreg_write(pp, MVNETA_CPU_MAP(cpu), rxq_map | txq_map); + } + + /* Reset RX and TX DMAs */ + mvreg_write(pp, MVNETA_PORT_RX_RESET, MVNETA_PORT_RX_DMA_RESET); + mvreg_write(pp, MVNETA_PORT_TX_RESET, MVNETA_PORT_TX_DMA_RESET); + + /* Disable Legacy WRR, Disable EJP, Release from reset */ + mvreg_write(pp, MVNETA_TXQ_CMD_1, 0); + for (queue = 0; queue < txq_number; queue++) { + mvreg_write(pp, MVETH_TXQ_TOKEN_COUNT_REG(queue), 0); + mvreg_write(pp, MVETH_TXQ_TOKEN_CFG_REG(queue), 0); + } + + mvreg_write(pp, MVNETA_PORT_TX_RESET, 0); + mvreg_write(pp, MVNETA_PORT_RX_RESET, 0); + + /* Set Port Acceleration Mode */ + if (pp->bm_priv) + /* HW buffer management + legacy parser */ + val = MVNETA_ACC_MODE_EXT2; + else + /* SW buffer management + legacy parser */ + val = MVNETA_ACC_MODE_EXT1; + mvreg_write(pp, MVNETA_ACC_MODE, val); + + if (pp->bm_priv) + mvreg_write(pp, MVNETA_BM_ADDRESS, pp->bm_priv->bppi_phys_addr); + + /* Update val of portCfg register accordingly with all RxQueue types */ + val = MVNETA_PORT_CONFIG_DEFL_VALUE(pp->rxq_def); + mvreg_write(pp, MVNETA_PORT_CONFIG, val); + + val = 0; + mvreg_write(pp, MVNETA_PORT_CONFIG_EXTEND, val); + mvreg_write(pp, MVNETA_RX_MIN_FRAME_SIZE, 64); + + /* Build PORT_SDMA_CONFIG_REG */ + val = 0; + + /* Default burst size */ + val |= MVNETA_TX_BRST_SZ_MASK(MVNETA_SDMA_BRST_SIZE_16); + val |= MVNETA_RX_BRST_SZ_MASK(MVNETA_SDMA_BRST_SIZE_16); + val |= MVNETA_RX_NO_DATA_SWAP | MVNETA_TX_NO_DATA_SWAP; + +#if defined(__BIG_ENDIAN) + val |= MVNETA_DESC_SWAP; +#endif + + /* Assign port SDMA configuration */ + mvreg_write(pp, MVNETA_SDMA_CONFIG, val); + + /* Disable PHY polling in hardware, since we're using the + * kernel phylib to do this. + */ + val = mvreg_read(pp, MVNETA_UNIT_CONTROL); + val &= ~MVNETA_PHY_POLLING_ENABLE; + mvreg_write(pp, MVNETA_UNIT_CONTROL, val); + + mvneta_set_ucast_table(pp, -1); + mvneta_set_special_mcast_table(pp, -1); + mvneta_set_other_mcast_table(pp, -1); + + /* Set port interrupt enable register - default enable all */ + mvreg_write(pp, MVNETA_INTR_ENABLE, + (MVNETA_RXQ_INTR_ENABLE_ALL_MASK + | MVNETA_TXQ_INTR_ENABLE_ALL_MASK)); + + mvneta_mib_counters_clear(pp); +} + +/* Set max sizes for tx queues */ +static void mvneta_txq_max_tx_size_set(struct mvneta_port *pp, int max_tx_size) + +{ + u32 val, size, mtu; + int queue; + + mtu = max_tx_size * 8; + if (mtu > MVNETA_TX_MTU_MAX) + mtu = MVNETA_TX_MTU_MAX; + + /* Set MTU */ + val = mvreg_read(pp, MVNETA_TX_MTU); + val &= ~MVNETA_TX_MTU_MAX; + val |= mtu; + mvreg_write(pp, MVNETA_TX_MTU, val); + + /* TX token size and all TXQs token size must be larger that MTU */ + val = mvreg_read(pp, MVNETA_TX_TOKEN_SIZE); + + size = val & MVNETA_TX_TOKEN_SIZE_MAX; + if (size < mtu) { + size = mtu; + val &= ~MVNETA_TX_TOKEN_SIZE_MAX; + val |= size; + mvreg_write(pp, MVNETA_TX_TOKEN_SIZE, val); + } + for (queue = 0; queue < txq_number; queue++) { + val = mvreg_read(pp, MVNETA_TXQ_TOKEN_SIZE_REG(queue)); + + size = val & MVNETA_TXQ_TOKEN_SIZE_MAX; + if (size < mtu) { + size = mtu; + val &= ~MVNETA_TXQ_TOKEN_SIZE_MAX; + val |= size; + mvreg_write(pp, MVNETA_TXQ_TOKEN_SIZE_REG(queue), val); + } + } +} + +/* Set unicast address */ +static void mvneta_set_ucast_addr(struct mvneta_port *pp, u8 last_nibble, + int queue) +{ + unsigned int unicast_reg; + unsigned int tbl_offset; + unsigned int reg_offset; + + /* Locate the Unicast table entry */ + last_nibble = (0xf & last_nibble); + + /* offset from unicast tbl base */ + tbl_offset = (last_nibble / 4) * 4; + + /* offset within the above reg */ + reg_offset = last_nibble % 4; + + unicast_reg = mvreg_read(pp, (MVNETA_DA_FILT_UCAST_BASE + tbl_offset)); + + if (queue == -1) { + /* Clear accepts frame bit at specified unicast DA tbl entry */ + unicast_reg &= ~(0xff << (8 * reg_offset)); + } else { + unicast_reg &= ~(0xff << (8 * reg_offset)); + unicast_reg |= ((0x01 | (queue << 1)) << (8 * reg_offset)); + } + + mvreg_write(pp, (MVNETA_DA_FILT_UCAST_BASE + tbl_offset), unicast_reg); +} + +/* Set mac address */ +static void mvneta_mac_addr_set(struct mvneta_port *pp, + const unsigned char *addr, int queue) +{ + unsigned int mac_h; + unsigned int mac_l; + + if (queue != -1) { + mac_l = (addr[4] << 8) | (addr[5]); + mac_h = (addr[0] << 24) | (addr[1] << 16) | + (addr[2] << 8) | (addr[3] << 0); + + mvreg_write(pp, MVNETA_MAC_ADDR_LOW, mac_l); + mvreg_write(pp, MVNETA_MAC_ADDR_HIGH, mac_h); + } + + /* Accept frames of this address */ + mvneta_set_ucast_addr(pp, addr[5], queue); +} + +/* Set the number of packets that will be received before RX interrupt + * will be generated by HW. + */ +static void mvneta_rx_pkts_coal_set(struct mvneta_port *pp, + struct mvneta_rx_queue *rxq, u32 value) +{ + mvreg_write(pp, MVNETA_RXQ_THRESHOLD_REG(rxq->id), + value | MVNETA_RXQ_NON_OCCUPIED(0)); +} + +/* Set the time delay in usec before RX interrupt will be generated by + * HW. + */ +static void mvneta_rx_time_coal_set(struct mvneta_port *pp, + struct mvneta_rx_queue *rxq, u32 value) +{ + u32 val; + unsigned long clk_rate; + + clk_rate = clk_get_rate(pp->clk); + val = (clk_rate / 1000000) * value; + + mvreg_write(pp, MVNETA_RXQ_TIME_COAL_REG(rxq->id), val); +} + +/* Set threshold for TX_DONE pkts coalescing */ +static void mvneta_tx_done_pkts_coal_set(struct mvneta_port *pp, + struct mvneta_tx_queue *txq, u32 value) +{ + u32 val; + + val = mvreg_read(pp, MVNETA_TXQ_SIZE_REG(txq->id)); + + val &= ~MVNETA_TXQ_SENT_THRESH_ALL_MASK; + val |= MVNETA_TXQ_SENT_THRESH_MASK(value); + + mvreg_write(pp, MVNETA_TXQ_SIZE_REG(txq->id), val); +} + +/* Handle rx descriptor fill by setting buf_cookie and buf_phys_addr */ +static void mvneta_rx_desc_fill(struct mvneta_rx_desc *rx_desc, + u32 phys_addr, void *virt_addr, + struct mvneta_rx_queue *rxq) +{ + int i; + + rx_desc->buf_phys_addr = phys_addr; + i = rx_desc - rxq->descs; + rxq->buf_virt_addr[i] = virt_addr; +} + +/* Decrement sent descriptors counter */ +static void mvneta_txq_sent_desc_dec(struct mvneta_port *pp, + struct mvneta_tx_queue *txq, + int sent_desc) +{ + u32 val; + + /* Only 255 TX descriptors can be updated at once */ + while (sent_desc > 0xff) { + val = 0xff << MVNETA_TXQ_DEC_SENT_SHIFT; + mvreg_write(pp, MVNETA_TXQ_UPDATE_REG(txq->id), val); + sent_desc = sent_desc - 0xff; + } + + val = sent_desc << MVNETA_TXQ_DEC_SENT_SHIFT; + mvreg_write(pp, MVNETA_TXQ_UPDATE_REG(txq->id), val); +} + +/* Get number of TX descriptors already sent by HW */ +static int mvneta_txq_sent_desc_num_get(struct mvneta_port *pp, + struct mvneta_tx_queue *txq) +{ + u32 val; + int sent_desc; + + val = mvreg_read(pp, MVNETA_TXQ_STATUS_REG(txq->id)); + sent_desc = (val & MVNETA_TXQ_SENT_DESC_MASK) >> + MVNETA_TXQ_SENT_DESC_SHIFT; + + return sent_desc; +} + +/* Get number of sent descriptors and decrement counter. + * The number of sent descriptors is returned. + */ +static int mvneta_txq_sent_desc_proc(struct mvneta_port *pp, + struct mvneta_tx_queue *txq) +{ + int sent_desc; + + /* Get number of sent descriptors */ + sent_desc = mvneta_txq_sent_desc_num_get(pp, txq); + + /* Decrement sent descriptors counter */ + if (sent_desc) + mvneta_txq_sent_desc_dec(pp, txq, sent_desc); + + return sent_desc; +} + +/* Set TXQ descriptors fields relevant for CSUM calculation */ +static u32 mvneta_txq_desc_csum(int l3_offs, int l3_proto, + int ip_hdr_len, int l4_proto) +{ + u32 command; + + /* Fields: L3_offset, IP_hdrlen, L3_type, G_IPv4_chk, + * G_L4_chk, L4_type; required only for checksum + * calculation + */ + command = l3_offs << MVNETA_TX_L3_OFF_SHIFT; + command |= ip_hdr_len << MVNETA_TX_IP_HLEN_SHIFT; + + if (l3_proto == htons(ETH_P_IP)) + command |= MVNETA_TXD_IP_CSUM; + else + command |= MVNETA_TX_L3_IP6; + + if (l4_proto == IPPROTO_TCP) + command |= MVNETA_TX_L4_CSUM_FULL; + else if (l4_proto == IPPROTO_UDP) + command |= MVNETA_TX_L4_UDP | MVNETA_TX_L4_CSUM_FULL; + else + command |= MVNETA_TX_L4_CSUM_NOT; + + return command; +} + + +/* Display more error info */ +static void mvneta_rx_error(struct mvneta_port *pp, + struct mvneta_rx_desc *rx_desc) +{ + struct mvneta_pcpu_stats *stats = this_cpu_ptr(pp->stats); + u32 status = rx_desc->status; + + /* update per-cpu counter */ + u64_stats_update_begin(&stats->syncp); + stats->rx_errors++; + u64_stats_update_end(&stats->syncp); + + switch (status & MVNETA_RXD_ERR_CODE_MASK) { + case MVNETA_RXD_ERR_CRC: + netdev_err(pp->dev, "bad rx status %08x (crc error), size=%d\n", + status, rx_desc->data_size); + break; + case MVNETA_RXD_ERR_OVERRUN: + netdev_err(pp->dev, "bad rx status %08x (overrun error), size=%d\n", + status, rx_desc->data_size); + break; + case MVNETA_RXD_ERR_LEN: + netdev_err(pp->dev, "bad rx status %08x (max frame length error), size=%d\n", + status, rx_desc->data_size); + break; + case MVNETA_RXD_ERR_RESOURCE: + netdev_err(pp->dev, "bad rx status %08x (resource error), size=%d\n", + status, rx_desc->data_size); + break; + } +} + +/* Handle RX checksum offload based on the descriptor's status */ +static int mvneta_rx_csum(struct mvneta_port *pp, u32 status) +{ + if ((pp->dev->features & NETIF_F_RXCSUM) && + (status & MVNETA_RXD_L3_IP4) && + (status & MVNETA_RXD_L4_CSUM_OK)) + return CHECKSUM_UNNECESSARY; + + return CHECKSUM_NONE; +} + +/* Return tx queue pointer (find last set bit) according to <cause> returned + * form tx_done reg. <cause> must not be null. The return value is always a + * valid queue for matching the first one found in <cause>. + */ +static struct mvneta_tx_queue *mvneta_tx_done_policy(struct mvneta_port *pp, + u32 cause) +{ + int queue = fls(cause) - 1; + + return &pp->txqs[queue]; +} + +/* Free tx queue skbuffs */ +static void mvneta_txq_bufs_free(struct mvneta_port *pp, + struct mvneta_tx_queue *txq, int num, + struct netdev_queue *nq, bool napi) +{ + unsigned int bytes_compl = 0, pkts_compl = 0; + struct xdp_frame_bulk bq; + int i; + + xdp_frame_bulk_init(&bq); + + rcu_read_lock(); /* need for xdp_return_frame_bulk */ + + for (i = 0; i < num; i++) { + struct mvneta_tx_buf *buf = &txq->buf[txq->txq_get_index]; + struct mvneta_tx_desc *tx_desc = txq->descs + + txq->txq_get_index; + + mvneta_txq_inc_get(txq); + + if (!IS_TSO_HEADER(txq, tx_desc->buf_phys_addr) && + buf->type != MVNETA_TYPE_XDP_TX) + dma_unmap_single(pp->dev->dev.parent, + tx_desc->buf_phys_addr, + tx_desc->data_size, DMA_TO_DEVICE); + if (buf->type == MVNETA_TYPE_SKB && buf->skb) { + bytes_compl += buf->skb->len; + pkts_compl++; + dev_kfree_skb_any(buf->skb); + } else if ((buf->type == MVNETA_TYPE_XDP_TX || + buf->type == MVNETA_TYPE_XDP_NDO) && buf->xdpf) { + if (napi && buf->type == MVNETA_TYPE_XDP_TX) + xdp_return_frame_rx_napi(buf->xdpf); + else + xdp_return_frame_bulk(buf->xdpf, &bq); + } + } + xdp_flush_frame_bulk(&bq); + + rcu_read_unlock(); + + netdev_tx_completed_queue(nq, pkts_compl, bytes_compl); +} + +/* Handle end of transmission */ +static void mvneta_txq_done(struct mvneta_port *pp, + struct mvneta_tx_queue *txq) +{ + struct netdev_queue *nq = netdev_get_tx_queue(pp->dev, txq->id); + int tx_done; + + tx_done = mvneta_txq_sent_desc_proc(pp, txq); + if (!tx_done) + return; + + mvneta_txq_bufs_free(pp, txq, tx_done, nq, true); + + txq->count -= tx_done; + + if (netif_tx_queue_stopped(nq)) { + if (txq->count <= txq->tx_wake_threshold) + netif_tx_wake_queue(nq); + } +} + +/* Refill processing for SW buffer management */ +/* Allocate page per descriptor */ +static int mvneta_rx_refill(struct mvneta_port *pp, + struct mvneta_rx_desc *rx_desc, + struct mvneta_rx_queue *rxq, + gfp_t gfp_mask) +{ + dma_addr_t phys_addr; + struct page *page; + + page = page_pool_alloc_pages(rxq->page_pool, + gfp_mask | __GFP_NOWARN); + if (!page) + return -ENOMEM; + + phys_addr = page_pool_get_dma_addr(page) + pp->rx_offset_correction; + mvneta_rx_desc_fill(rx_desc, phys_addr, page, rxq); + + return 0; +} + +/* Handle tx checksum */ +static u32 mvneta_skb_tx_csum(struct sk_buff *skb) +{ + if (skb->ip_summed == CHECKSUM_PARTIAL) { + int ip_hdr_len = 0; + __be16 l3_proto = vlan_get_protocol(skb); + u8 l4_proto; + + if (l3_proto == htons(ETH_P_IP)) { + struct iphdr *ip4h = ip_hdr(skb); + + /* Calculate IPv4 checksum and L4 checksum */ + ip_hdr_len = ip4h->ihl; + l4_proto = ip4h->protocol; + } else if (l3_proto == htons(ETH_P_IPV6)) { + struct ipv6hdr *ip6h = ipv6_hdr(skb); + + /* Read l4_protocol from one of IPv6 extra headers */ + if (skb_network_header_len(skb) > 0) + ip_hdr_len = (skb_network_header_len(skb) >> 2); + l4_proto = ip6h->nexthdr; + } else + return MVNETA_TX_L4_CSUM_NOT; + + return mvneta_txq_desc_csum(skb_network_offset(skb), + l3_proto, ip_hdr_len, l4_proto); + } + + return MVNETA_TX_L4_CSUM_NOT; +} + +/* Drop packets received by the RXQ and free buffers */ +static void mvneta_rxq_drop_pkts(struct mvneta_port *pp, + struct mvneta_rx_queue *rxq) +{ + int rx_done, i; + + rx_done = mvneta_rxq_busy_desc_num_get(pp, rxq); + if (rx_done) + mvneta_rxq_desc_num_update(pp, rxq, rx_done, rx_done); + + if (pp->bm_priv) { + for (i = 0; i < rx_done; i++) { + struct mvneta_rx_desc *rx_desc = + mvneta_rxq_next_desc_get(rxq); + u8 pool_id = MVNETA_RX_GET_BM_POOL_ID(rx_desc); + struct mvneta_bm_pool *bm_pool; + + bm_pool = &pp->bm_priv->bm_pools[pool_id]; + /* Return dropped buffer to the pool */ + mvneta_bm_pool_put_bp(pp->bm_priv, bm_pool, + rx_desc->buf_phys_addr); + } + return; + } + + for (i = 0; i < rxq->size; i++) { + struct mvneta_rx_desc *rx_desc = rxq->descs + i; + void *data = rxq->buf_virt_addr[i]; + if (!data || !(rx_desc->buf_phys_addr)) + continue; + + page_pool_put_full_page(rxq->page_pool, data, false); + } + if (xdp_rxq_info_is_reg(&rxq->xdp_rxq)) + xdp_rxq_info_unreg(&rxq->xdp_rxq); + page_pool_destroy(rxq->page_pool); + rxq->page_pool = NULL; +} + +static void +mvneta_update_stats(struct mvneta_port *pp, + struct mvneta_stats *ps) +{ + struct mvneta_pcpu_stats *stats = this_cpu_ptr(pp->stats); + + u64_stats_update_begin(&stats->syncp); + stats->es.ps.rx_packets += ps->rx_packets; + stats->es.ps.rx_bytes += ps->rx_bytes; + /* xdp */ + stats->es.ps.xdp_redirect += ps->xdp_redirect; + stats->es.ps.xdp_pass += ps->xdp_pass; + stats->es.ps.xdp_drop += ps->xdp_drop; + u64_stats_update_end(&stats->syncp); +} + +static inline +int mvneta_rx_refill_queue(struct mvneta_port *pp, struct mvneta_rx_queue *rxq) +{ + struct mvneta_rx_desc *rx_desc; + int curr_desc = rxq->first_to_refill; + int i; + + for (i = 0; (i < rxq->refill_num) && (i < 64); i++) { + rx_desc = rxq->descs + curr_desc; + if (!(rx_desc->buf_phys_addr)) { + if (mvneta_rx_refill(pp, rx_desc, rxq, GFP_ATOMIC)) { + struct mvneta_pcpu_stats *stats; + + pr_err("Can't refill queue %d. Done %d from %d\n", + rxq->id, i, rxq->refill_num); + + stats = this_cpu_ptr(pp->stats); + u64_stats_update_begin(&stats->syncp); + stats->es.refill_error++; + u64_stats_update_end(&stats->syncp); + break; + } + } + curr_desc = MVNETA_QUEUE_NEXT_DESC(rxq, curr_desc); + } + rxq->refill_num -= i; + rxq->first_to_refill = curr_desc; + + return i; +} + +static void +mvneta_xdp_put_buff(struct mvneta_port *pp, struct mvneta_rx_queue *rxq, + struct xdp_buff *xdp, int sync_len) +{ + struct skb_shared_info *sinfo = xdp_get_shared_info_from_buff(xdp); + int i; + + if (likely(!xdp_buff_has_frags(xdp))) + goto out; + + for (i = 0; i < sinfo->nr_frags; i++) + page_pool_put_full_page(rxq->page_pool, + skb_frag_page(&sinfo->frags[i]), true); + +out: + page_pool_put_page(rxq->page_pool, virt_to_head_page(xdp->data), + sync_len, true); +} + +static int +mvneta_xdp_submit_frame(struct mvneta_port *pp, struct mvneta_tx_queue *txq, + struct xdp_frame *xdpf, int *nxmit_byte, bool dma_map) +{ + struct skb_shared_info *sinfo = xdp_get_shared_info_from_frame(xdpf); + struct device *dev = pp->dev->dev.parent; + struct mvneta_tx_desc *tx_desc; + int i, num_frames = 1; + struct page *page; + + if (unlikely(xdp_frame_has_frags(xdpf))) + num_frames += sinfo->nr_frags; + + if (txq->count + num_frames >= txq->size) + return MVNETA_XDP_DROPPED; + + for (i = 0; i < num_frames; i++) { + struct mvneta_tx_buf *buf = &txq->buf[txq->txq_put_index]; + skb_frag_t *frag = NULL; + int len = xdpf->len; + dma_addr_t dma_addr; + + if (unlikely(i)) { /* paged area */ + frag = &sinfo->frags[i - 1]; + len = skb_frag_size(frag); + } + + tx_desc = mvneta_txq_next_desc_get(txq); + if (dma_map) { + /* ndo_xdp_xmit */ + void *data; + + data = unlikely(frag) ? skb_frag_address(frag) + : xdpf->data; + dma_addr = dma_map_single(dev, data, len, + DMA_TO_DEVICE); + if (dma_mapping_error(dev, dma_addr)) { + mvneta_txq_desc_put(txq); + goto unmap; + } + + buf->type = MVNETA_TYPE_XDP_NDO; + } else { + page = unlikely(frag) ? skb_frag_page(frag) + : virt_to_page(xdpf->data); + dma_addr = page_pool_get_dma_addr(page); + if (unlikely(frag)) + dma_addr += skb_frag_off(frag); + else + dma_addr += sizeof(*xdpf) + xdpf->headroom; + dma_sync_single_for_device(dev, dma_addr, len, + DMA_BIDIRECTIONAL); + buf->type = MVNETA_TYPE_XDP_TX; + } + buf->xdpf = unlikely(i) ? NULL : xdpf; + + tx_desc->command = unlikely(i) ? 0 : MVNETA_TXD_F_DESC; + tx_desc->buf_phys_addr = dma_addr; + tx_desc->data_size = len; + *nxmit_byte += len; + + mvneta_txq_inc_put(txq); + } + /*last descriptor */ + tx_desc->command |= MVNETA_TXD_L_DESC | MVNETA_TXD_Z_PAD; + + txq->pending += num_frames; + txq->count += num_frames; + + return MVNETA_XDP_TX; + +unmap: + for (i--; i >= 0; i--) { + mvneta_txq_desc_put(txq); + tx_desc = txq->descs + txq->next_desc_to_proc; + dma_unmap_single(dev, tx_desc->buf_phys_addr, + tx_desc->data_size, + DMA_TO_DEVICE); + } + + return MVNETA_XDP_DROPPED; +} + +static int +mvneta_xdp_xmit_back(struct mvneta_port *pp, struct xdp_buff *xdp) +{ + struct mvneta_pcpu_stats *stats = this_cpu_ptr(pp->stats); + struct mvneta_tx_queue *txq; + struct netdev_queue *nq; + int cpu, nxmit_byte = 0; + struct xdp_frame *xdpf; + u32 ret; + + xdpf = xdp_convert_buff_to_frame(xdp); + if (unlikely(!xdpf)) + return MVNETA_XDP_DROPPED; + + cpu = smp_processor_id(); + txq = &pp->txqs[cpu % txq_number]; + nq = netdev_get_tx_queue(pp->dev, txq->id); + + __netif_tx_lock(nq, cpu); + ret = mvneta_xdp_submit_frame(pp, txq, xdpf, &nxmit_byte, false); + if (ret == MVNETA_XDP_TX) { + u64_stats_update_begin(&stats->syncp); + stats->es.ps.tx_bytes += nxmit_byte; + stats->es.ps.tx_packets++; + stats->es.ps.xdp_tx++; + u64_stats_update_end(&stats->syncp); + + mvneta_txq_pend_desc_add(pp, txq, 0); + } else { + u64_stats_update_begin(&stats->syncp); + stats->es.ps.xdp_tx_err++; + u64_stats_update_end(&stats->syncp); + } + __netif_tx_unlock(nq); + + return ret; +} + +static int +mvneta_xdp_xmit(struct net_device *dev, int num_frame, + struct xdp_frame **frames, u32 flags) +{ + struct mvneta_port *pp = netdev_priv(dev); + struct mvneta_pcpu_stats *stats = this_cpu_ptr(pp->stats); + int i, nxmit_byte = 0, nxmit = 0; + int cpu = smp_processor_id(); + struct mvneta_tx_queue *txq; + struct netdev_queue *nq; + u32 ret; + + if (unlikely(test_bit(__MVNETA_DOWN, &pp->state))) + return -ENETDOWN; + + if (unlikely(flags & ~XDP_XMIT_FLAGS_MASK)) + return -EINVAL; + + txq = &pp->txqs[cpu % txq_number]; + nq = netdev_get_tx_queue(pp->dev, txq->id); + + __netif_tx_lock(nq, cpu); + for (i = 0; i < num_frame; i++) { + ret = mvneta_xdp_submit_frame(pp, txq, frames[i], &nxmit_byte, + true); + if (ret != MVNETA_XDP_TX) + break; + + nxmit++; + } + + if (unlikely(flags & XDP_XMIT_FLUSH)) + mvneta_txq_pend_desc_add(pp, txq, 0); + __netif_tx_unlock(nq); + + u64_stats_update_begin(&stats->syncp); + stats->es.ps.tx_bytes += nxmit_byte; + stats->es.ps.tx_packets += nxmit; + stats->es.ps.xdp_xmit += nxmit; + stats->es.ps.xdp_xmit_err += num_frame - nxmit; + u64_stats_update_end(&stats->syncp); + + return nxmit; +} + +static int +mvneta_run_xdp(struct mvneta_port *pp, struct mvneta_rx_queue *rxq, + struct bpf_prog *prog, struct xdp_buff *xdp, + u32 frame_sz, struct mvneta_stats *stats) +{ + unsigned int len, data_len, sync; + u32 ret, act; + + len = xdp->data_end - xdp->data_hard_start - pp->rx_offset_correction; + data_len = xdp->data_end - xdp->data; + act = bpf_prog_run_xdp(prog, xdp); + + /* Due xdp_adjust_tail: DMA sync for_device cover max len CPU touch */ + sync = xdp->data_end - xdp->data_hard_start - pp->rx_offset_correction; + sync = max(sync, len); + + switch (act) { + case XDP_PASS: + stats->xdp_pass++; + return MVNETA_XDP_PASS; + case XDP_REDIRECT: { + int err; + + err = xdp_do_redirect(pp->dev, xdp, prog); + if (unlikely(err)) { + mvneta_xdp_put_buff(pp, rxq, xdp, sync); + ret = MVNETA_XDP_DROPPED; + } else { + ret = MVNETA_XDP_REDIR; + stats->xdp_redirect++; + } + break; + } + case XDP_TX: + ret = mvneta_xdp_xmit_back(pp, xdp); + if (ret != MVNETA_XDP_TX) + mvneta_xdp_put_buff(pp, rxq, xdp, sync); + break; + default: + bpf_warn_invalid_xdp_action(pp->dev, prog, act); + fallthrough; + case XDP_ABORTED: + trace_xdp_exception(pp->dev, prog, act); + fallthrough; + case XDP_DROP: + mvneta_xdp_put_buff(pp, rxq, xdp, sync); + ret = MVNETA_XDP_DROPPED; + stats->xdp_drop++; + break; + } + + stats->rx_bytes += frame_sz + xdp->data_end - xdp->data - data_len; + stats->rx_packets++; + + return ret; +} + +static void +mvneta_swbm_rx_frame(struct mvneta_port *pp, + struct mvneta_rx_desc *rx_desc, + struct mvneta_rx_queue *rxq, + struct xdp_buff *xdp, int *size, + struct page *page) +{ + unsigned char *data = page_address(page); + int data_len = -MVNETA_MH_SIZE, len; + struct net_device *dev = pp->dev; + enum dma_data_direction dma_dir; + + if (*size > MVNETA_MAX_RX_BUF_SIZE) { + len = MVNETA_MAX_RX_BUF_SIZE; + data_len += len; + } else { + len = *size; + data_len += len - ETH_FCS_LEN; + } + *size = *size - len; + + dma_dir = page_pool_get_dma_dir(rxq->page_pool); + dma_sync_single_for_cpu(dev->dev.parent, + rx_desc->buf_phys_addr, + len, dma_dir); + + rx_desc->buf_phys_addr = 0; + + /* Prefetch header */ + prefetch(data); + xdp_buff_clear_frags_flag(xdp); + xdp_prepare_buff(xdp, data, pp->rx_offset_correction + MVNETA_MH_SIZE, + data_len, false); +} + +static void +mvneta_swbm_add_rx_fragment(struct mvneta_port *pp, + struct mvneta_rx_desc *rx_desc, + struct mvneta_rx_queue *rxq, + struct xdp_buff *xdp, int *size, + struct page *page) +{ + struct skb_shared_info *sinfo = xdp_get_shared_info_from_buff(xdp); + struct net_device *dev = pp->dev; + enum dma_data_direction dma_dir; + int data_len, len; + + if (*size > MVNETA_MAX_RX_BUF_SIZE) { + len = MVNETA_MAX_RX_BUF_SIZE; + data_len = len; + } else { + len = *size; + data_len = len - ETH_FCS_LEN; + } + dma_dir = page_pool_get_dma_dir(rxq->page_pool); + dma_sync_single_for_cpu(dev->dev.parent, + rx_desc->buf_phys_addr, + len, dma_dir); + rx_desc->buf_phys_addr = 0; + + if (!xdp_buff_has_frags(xdp)) + sinfo->nr_frags = 0; + + if (data_len > 0 && sinfo->nr_frags < MAX_SKB_FRAGS) { + skb_frag_t *frag = &sinfo->frags[sinfo->nr_frags++]; + + skb_frag_off_set(frag, pp->rx_offset_correction); + skb_frag_size_set(frag, data_len); + __skb_frag_set_page(frag, page); + + if (!xdp_buff_has_frags(xdp)) { + sinfo->xdp_frags_size = *size; + xdp_buff_set_frags_flag(xdp); + } + if (page_is_pfmemalloc(page)) + xdp_buff_set_frag_pfmemalloc(xdp); + } else { + page_pool_put_full_page(rxq->page_pool, page, true); + } + *size -= len; +} + +static struct sk_buff * +mvneta_swbm_build_skb(struct mvneta_port *pp, struct page_pool *pool, + struct xdp_buff *xdp, u32 desc_status) +{ + struct skb_shared_info *sinfo = xdp_get_shared_info_from_buff(xdp); + struct sk_buff *skb; + u8 num_frags; + + if (unlikely(xdp_buff_has_frags(xdp))) + num_frags = sinfo->nr_frags; + + skb = build_skb(xdp->data_hard_start, PAGE_SIZE); + if (!skb) + return ERR_PTR(-ENOMEM); + + skb_mark_for_recycle(skb); + + skb_reserve(skb, xdp->data - xdp->data_hard_start); + skb_put(skb, xdp->data_end - xdp->data); + skb->ip_summed = mvneta_rx_csum(pp, desc_status); + + if (unlikely(xdp_buff_has_frags(xdp))) + xdp_update_skb_shared_info(skb, num_frags, + sinfo->xdp_frags_size, + num_frags * xdp->frame_sz, + xdp_buff_is_frag_pfmemalloc(xdp)); + + return skb; +} + +/* Main rx processing when using software buffer management */ +static int mvneta_rx_swbm(struct napi_struct *napi, + struct mvneta_port *pp, int budget, + struct mvneta_rx_queue *rxq) +{ + int rx_proc = 0, rx_todo, refill, size = 0; + struct net_device *dev = pp->dev; + struct mvneta_stats ps = {}; + struct bpf_prog *xdp_prog; + u32 desc_status, frame_sz; + struct xdp_buff xdp_buf; + + xdp_init_buff(&xdp_buf, PAGE_SIZE, &rxq->xdp_rxq); + xdp_buf.data_hard_start = NULL; + + /* Get number of received packets */ + rx_todo = mvneta_rxq_busy_desc_num_get(pp, rxq); + + xdp_prog = READ_ONCE(pp->xdp_prog); + + /* Fairness NAPI loop */ + while (rx_proc < budget && rx_proc < rx_todo) { + struct mvneta_rx_desc *rx_desc = mvneta_rxq_next_desc_get(rxq); + u32 rx_status, index; + struct sk_buff *skb; + struct page *page; + + index = rx_desc - rxq->descs; + page = (struct page *)rxq->buf_virt_addr[index]; + + rx_status = rx_desc->status; + rx_proc++; + rxq->refill_num++; + + if (rx_status & MVNETA_RXD_FIRST_DESC) { + /* Check errors only for FIRST descriptor */ + if (rx_status & MVNETA_RXD_ERR_SUMMARY) { + mvneta_rx_error(pp, rx_desc); + goto next; + } + + size = rx_desc->data_size; + frame_sz = size - ETH_FCS_LEN; + desc_status = rx_status; + + mvneta_swbm_rx_frame(pp, rx_desc, rxq, &xdp_buf, + &size, page); + } else { + if (unlikely(!xdp_buf.data_hard_start)) { + rx_desc->buf_phys_addr = 0; + page_pool_put_full_page(rxq->page_pool, page, + true); + goto next; + } + + mvneta_swbm_add_rx_fragment(pp, rx_desc, rxq, &xdp_buf, + &size, page); + } /* Middle or Last descriptor */ + + if (!(rx_status & MVNETA_RXD_LAST_DESC)) + /* no last descriptor this time */ + continue; + + if (size) { + mvneta_xdp_put_buff(pp, rxq, &xdp_buf, -1); + goto next; + } + + if (xdp_prog && + mvneta_run_xdp(pp, rxq, xdp_prog, &xdp_buf, frame_sz, &ps)) + goto next; + + skb = mvneta_swbm_build_skb(pp, rxq->page_pool, &xdp_buf, desc_status); + if (IS_ERR(skb)) { + struct mvneta_pcpu_stats *stats = this_cpu_ptr(pp->stats); + + mvneta_xdp_put_buff(pp, rxq, &xdp_buf, -1); + + u64_stats_update_begin(&stats->syncp); + stats->es.skb_alloc_error++; + stats->rx_dropped++; + u64_stats_update_end(&stats->syncp); + + goto next; + } + + ps.rx_bytes += skb->len; + ps.rx_packets++; + + skb->protocol = eth_type_trans(skb, dev); + napi_gro_receive(napi, skb); +next: + xdp_buf.data_hard_start = NULL; + } + + if (xdp_buf.data_hard_start) + mvneta_xdp_put_buff(pp, rxq, &xdp_buf, -1); + + if (ps.xdp_redirect) + xdp_do_flush_map(); + + if (ps.rx_packets) + mvneta_update_stats(pp, &ps); + + /* return some buffers to hardware queue, one at a time is too slow */ + refill = mvneta_rx_refill_queue(pp, rxq); + + /* Update rxq management counters */ + mvneta_rxq_desc_num_update(pp, rxq, rx_proc, refill); + + return ps.rx_packets; +} + +/* Main rx processing when using hardware buffer management */ +static int mvneta_rx_hwbm(struct napi_struct *napi, + struct mvneta_port *pp, int rx_todo, + struct mvneta_rx_queue *rxq) +{ + struct net_device *dev = pp->dev; + int rx_done; + u32 rcvd_pkts = 0; + u32 rcvd_bytes = 0; + + /* Get number of received packets */ + rx_done = mvneta_rxq_busy_desc_num_get(pp, rxq); + + if (rx_todo > rx_done) + rx_todo = rx_done; + + rx_done = 0; + + /* Fairness NAPI loop */ + while (rx_done < rx_todo) { + struct mvneta_rx_desc *rx_desc = mvneta_rxq_next_desc_get(rxq); + struct mvneta_bm_pool *bm_pool = NULL; + struct sk_buff *skb; + unsigned char *data; + dma_addr_t phys_addr; + u32 rx_status, frag_size; + int rx_bytes, err; + u8 pool_id; + + rx_done++; + rx_status = rx_desc->status; + rx_bytes = rx_desc->data_size - (ETH_FCS_LEN + MVNETA_MH_SIZE); + data = (u8 *)(uintptr_t)rx_desc->buf_cookie; + phys_addr = rx_desc->buf_phys_addr; + pool_id = MVNETA_RX_GET_BM_POOL_ID(rx_desc); + bm_pool = &pp->bm_priv->bm_pools[pool_id]; + + if (!mvneta_rxq_desc_is_first_last(rx_status) || + (rx_status & MVNETA_RXD_ERR_SUMMARY)) { +err_drop_frame_ret_pool: + /* Return the buffer to the pool */ + mvneta_bm_pool_put_bp(pp->bm_priv, bm_pool, + rx_desc->buf_phys_addr); +err_drop_frame: + mvneta_rx_error(pp, rx_desc); + /* leave the descriptor untouched */ + continue; + } + + if (rx_bytes <= rx_copybreak) { + /* better copy a small frame and not unmap the DMA region */ + skb = netdev_alloc_skb_ip_align(dev, rx_bytes); + if (unlikely(!skb)) + goto err_drop_frame_ret_pool; + + dma_sync_single_range_for_cpu(&pp->bm_priv->pdev->dev, + rx_desc->buf_phys_addr, + MVNETA_MH_SIZE + NET_SKB_PAD, + rx_bytes, + DMA_FROM_DEVICE); + skb_put_data(skb, data + MVNETA_MH_SIZE + NET_SKB_PAD, + rx_bytes); + + skb->protocol = eth_type_trans(skb, dev); + skb->ip_summed = mvneta_rx_csum(pp, rx_status); + napi_gro_receive(napi, skb); + + rcvd_pkts++; + rcvd_bytes += rx_bytes; + + /* Return the buffer to the pool */ + mvneta_bm_pool_put_bp(pp->bm_priv, bm_pool, + rx_desc->buf_phys_addr); + + /* leave the descriptor and buffer untouched */ + continue; + } + + /* Refill processing */ + err = hwbm_pool_refill(&bm_pool->hwbm_pool, GFP_ATOMIC); + if (err) { + struct mvneta_pcpu_stats *stats; + + netdev_err(dev, "Linux processing - Can't refill\n"); + + stats = this_cpu_ptr(pp->stats); + u64_stats_update_begin(&stats->syncp); + stats->es.refill_error++; + u64_stats_update_end(&stats->syncp); + + goto err_drop_frame_ret_pool; + } + + frag_size = bm_pool->hwbm_pool.frag_size; + + skb = build_skb(data, frag_size > PAGE_SIZE ? 0 : frag_size); + + /* After refill old buffer has to be unmapped regardless + * the skb is successfully built or not. + */ + dma_unmap_single(&pp->bm_priv->pdev->dev, phys_addr, + bm_pool->buf_size, DMA_FROM_DEVICE); + if (!skb) + goto err_drop_frame; + + rcvd_pkts++; + rcvd_bytes += rx_bytes; + + /* Linux processing */ + skb_reserve(skb, MVNETA_MH_SIZE + NET_SKB_PAD); + skb_put(skb, rx_bytes); + + skb->protocol = eth_type_trans(skb, dev); + skb->ip_summed = mvneta_rx_csum(pp, rx_status); + + napi_gro_receive(napi, skb); + } + + if (rcvd_pkts) { + struct mvneta_pcpu_stats *stats = this_cpu_ptr(pp->stats); + + u64_stats_update_begin(&stats->syncp); + stats->es.ps.rx_packets += rcvd_pkts; + stats->es.ps.rx_bytes += rcvd_bytes; + u64_stats_update_end(&stats->syncp); + } + + /* Update rxq management counters */ + mvneta_rxq_desc_num_update(pp, rxq, rx_done, rx_done); + + return rx_done; +} + +static inline void +mvneta_tso_put_hdr(struct sk_buff *skb, struct mvneta_tx_queue *txq) +{ + struct mvneta_tx_buf *buf = &txq->buf[txq->txq_put_index]; + int hdr_len = skb_tcp_all_headers(skb); + struct mvneta_tx_desc *tx_desc; + + tx_desc = mvneta_txq_next_desc_get(txq); + tx_desc->data_size = hdr_len; + tx_desc->command = mvneta_skb_tx_csum(skb); + tx_desc->command |= MVNETA_TXD_F_DESC; + tx_desc->buf_phys_addr = txq->tso_hdrs_phys + + txq->txq_put_index * TSO_HEADER_SIZE; + buf->type = MVNETA_TYPE_SKB; + buf->skb = NULL; + + mvneta_txq_inc_put(txq); +} + +static inline int +mvneta_tso_put_data(struct net_device *dev, struct mvneta_tx_queue *txq, + struct sk_buff *skb, char *data, int size, + bool last_tcp, bool is_last) +{ + struct mvneta_tx_buf *buf = &txq->buf[txq->txq_put_index]; + struct mvneta_tx_desc *tx_desc; + + tx_desc = mvneta_txq_next_desc_get(txq); + tx_desc->data_size = size; + tx_desc->buf_phys_addr = dma_map_single(dev->dev.parent, data, + size, DMA_TO_DEVICE); + if (unlikely(dma_mapping_error(dev->dev.parent, + tx_desc->buf_phys_addr))) { + mvneta_txq_desc_put(txq); + return -ENOMEM; + } + + tx_desc->command = 0; + buf->type = MVNETA_TYPE_SKB; + buf->skb = NULL; + + if (last_tcp) { + /* last descriptor in the TCP packet */ + tx_desc->command = MVNETA_TXD_L_DESC; + + /* last descriptor in SKB */ + if (is_last) + buf->skb = skb; + } + mvneta_txq_inc_put(txq); + return 0; +} + +static int mvneta_tx_tso(struct sk_buff *skb, struct net_device *dev, + struct mvneta_tx_queue *txq) +{ + int hdr_len, total_len, data_left; + int desc_count = 0; + struct mvneta_port *pp = netdev_priv(dev); + struct tso_t tso; + int i; + + /* Count needed descriptors */ + if ((txq->count + tso_count_descs(skb)) >= txq->size) + return 0; + + if (skb_headlen(skb) < skb_tcp_all_headers(skb)) { + pr_info("*** Is this even possible?\n"); + return 0; + } + + /* Initialize the TSO handler, and prepare the first payload */ + hdr_len = tso_start(skb, &tso); + + total_len = skb->len - hdr_len; + while (total_len > 0) { + char *hdr; + + data_left = min_t(int, skb_shinfo(skb)->gso_size, total_len); + total_len -= data_left; + desc_count++; + + /* prepare packet headers: MAC + IP + TCP */ + hdr = txq->tso_hdrs + txq->txq_put_index * TSO_HEADER_SIZE; + tso_build_hdr(skb, hdr, &tso, data_left, total_len == 0); + + mvneta_tso_put_hdr(skb, txq); + + while (data_left > 0) { + int size; + desc_count++; + + size = min_t(int, tso.size, data_left); + + if (mvneta_tso_put_data(dev, txq, skb, + tso.data, size, + size == data_left, + total_len == 0)) + goto err_release; + data_left -= size; + + tso_build_data(skb, &tso, size); + } + } + + return desc_count; + +err_release: + /* Release all used data descriptors; header descriptors must not + * be DMA-unmapped. + */ + for (i = desc_count - 1; i >= 0; i--) { + struct mvneta_tx_desc *tx_desc = txq->descs + i; + if (!IS_TSO_HEADER(txq, tx_desc->buf_phys_addr)) + dma_unmap_single(pp->dev->dev.parent, + tx_desc->buf_phys_addr, + tx_desc->data_size, + DMA_TO_DEVICE); + mvneta_txq_desc_put(txq); + } + return 0; +} + +/* Handle tx fragmentation processing */ +static int mvneta_tx_frag_process(struct mvneta_port *pp, struct sk_buff *skb, + struct mvneta_tx_queue *txq) +{ + struct mvneta_tx_desc *tx_desc; + int i, nr_frags = skb_shinfo(skb)->nr_frags; + + for (i = 0; i < nr_frags; i++) { + struct mvneta_tx_buf *buf = &txq->buf[txq->txq_put_index]; + skb_frag_t *frag = &skb_shinfo(skb)->frags[i]; + void *addr = skb_frag_address(frag); + + tx_desc = mvneta_txq_next_desc_get(txq); + tx_desc->data_size = skb_frag_size(frag); + + tx_desc->buf_phys_addr = + dma_map_single(pp->dev->dev.parent, addr, + tx_desc->data_size, DMA_TO_DEVICE); + + if (dma_mapping_error(pp->dev->dev.parent, + tx_desc->buf_phys_addr)) { + mvneta_txq_desc_put(txq); + goto error; + } + + if (i == nr_frags - 1) { + /* Last descriptor */ + tx_desc->command = MVNETA_TXD_L_DESC | MVNETA_TXD_Z_PAD; + buf->skb = skb; + } else { + /* Descriptor in the middle: Not First, Not Last */ + tx_desc->command = 0; + buf->skb = NULL; + } + buf->type = MVNETA_TYPE_SKB; + mvneta_txq_inc_put(txq); + } + + return 0; + +error: + /* Release all descriptors that were used to map fragments of + * this packet, as well as the corresponding DMA mappings + */ + for (i = i - 1; i >= 0; i--) { + tx_desc = txq->descs + i; + dma_unmap_single(pp->dev->dev.parent, + tx_desc->buf_phys_addr, + tx_desc->data_size, + DMA_TO_DEVICE); + mvneta_txq_desc_put(txq); + } + + return -ENOMEM; +} + +/* Main tx processing */ +static netdev_tx_t mvneta_tx(struct sk_buff *skb, struct net_device *dev) +{ + struct mvneta_port *pp = netdev_priv(dev); + u16 txq_id = skb_get_queue_mapping(skb); + struct mvneta_tx_queue *txq = &pp->txqs[txq_id]; + struct mvneta_tx_buf *buf = &txq->buf[txq->txq_put_index]; + struct mvneta_tx_desc *tx_desc; + int len = skb->len; + int frags = 0; + u32 tx_cmd; + + if (!netif_running(dev)) + goto out; + + if (skb_is_gso(skb)) { + frags = mvneta_tx_tso(skb, dev, txq); + goto out; + } + + frags = skb_shinfo(skb)->nr_frags + 1; + + /* Get a descriptor for the first part of the packet */ + tx_desc = mvneta_txq_next_desc_get(txq); + + tx_cmd = mvneta_skb_tx_csum(skb); + + tx_desc->data_size = skb_headlen(skb); + + tx_desc->buf_phys_addr = dma_map_single(dev->dev.parent, skb->data, + tx_desc->data_size, + DMA_TO_DEVICE); + if (unlikely(dma_mapping_error(dev->dev.parent, + tx_desc->buf_phys_addr))) { + mvneta_txq_desc_put(txq); + frags = 0; + goto out; + } + + buf->type = MVNETA_TYPE_SKB; + if (frags == 1) { + /* First and Last descriptor */ + tx_cmd |= MVNETA_TXD_FLZ_DESC; + tx_desc->command = tx_cmd; + buf->skb = skb; + mvneta_txq_inc_put(txq); + } else { + /* First but not Last */ + tx_cmd |= MVNETA_TXD_F_DESC; + buf->skb = NULL; + mvneta_txq_inc_put(txq); + tx_desc->command = tx_cmd; + /* Continue with other skb fragments */ + if (mvneta_tx_frag_process(pp, skb, txq)) { + dma_unmap_single(dev->dev.parent, + tx_desc->buf_phys_addr, + tx_desc->data_size, + DMA_TO_DEVICE); + mvneta_txq_desc_put(txq); + frags = 0; + goto out; + } + } + +out: + if (frags > 0) { + struct netdev_queue *nq = netdev_get_tx_queue(dev, txq_id); + struct mvneta_pcpu_stats *stats = this_cpu_ptr(pp->stats); + + netdev_tx_sent_queue(nq, len); + + txq->count += frags; + if (txq->count >= txq->tx_stop_threshold) + netif_tx_stop_queue(nq); + + if (!netdev_xmit_more() || netif_xmit_stopped(nq) || + txq->pending + frags > MVNETA_TXQ_DEC_SENT_MASK) + mvneta_txq_pend_desc_add(pp, txq, frags); + else + txq->pending += frags; + + u64_stats_update_begin(&stats->syncp); + stats->es.ps.tx_bytes += len; + stats->es.ps.tx_packets++; + u64_stats_update_end(&stats->syncp); + } else { + dev->stats.tx_dropped++; + dev_kfree_skb_any(skb); + } + + return NETDEV_TX_OK; +} + + +/* Free tx resources, when resetting a port */ +static void mvneta_txq_done_force(struct mvneta_port *pp, + struct mvneta_tx_queue *txq) + +{ + struct netdev_queue *nq = netdev_get_tx_queue(pp->dev, txq->id); + int tx_done = txq->count; + + mvneta_txq_bufs_free(pp, txq, tx_done, nq, false); + + /* reset txq */ + txq->count = 0; + txq->txq_put_index = 0; + txq->txq_get_index = 0; +} + +/* Handle tx done - called in softirq context. The <cause_tx_done> argument + * must be a valid cause according to MVNETA_TXQ_INTR_MASK_ALL. + */ +static void mvneta_tx_done_gbe(struct mvneta_port *pp, u32 cause_tx_done) +{ + struct mvneta_tx_queue *txq; + struct netdev_queue *nq; + int cpu = smp_processor_id(); + + while (cause_tx_done) { + txq = mvneta_tx_done_policy(pp, cause_tx_done); + + nq = netdev_get_tx_queue(pp->dev, txq->id); + __netif_tx_lock(nq, cpu); + + if (txq->count) + mvneta_txq_done(pp, txq); + + __netif_tx_unlock(nq); + cause_tx_done &= ~((1 << txq->id)); + } +} + +/* Compute crc8 of the specified address, using a unique algorithm , + * according to hw spec, different than generic crc8 algorithm + */ +static int mvneta_addr_crc(unsigned char *addr) +{ + int crc = 0; + int i; + + for (i = 0; i < ETH_ALEN; i++) { + int j; + + crc = (crc ^ addr[i]) << 8; + for (j = 7; j >= 0; j--) { + if (crc & (0x100 << j)) + crc ^= 0x107 << j; + } + } + + return crc; +} + +/* This method controls the net device special MAC multicast support. + * The Special Multicast Table for MAC addresses supports MAC of the form + * 0x01-00-5E-00-00-XX (where XX is between 0x00 and 0xFF). + * The MAC DA[7:0] bits are used as a pointer to the Special Multicast + * Table entries in the DA-Filter table. This method set the Special + * Multicast Table appropriate entry. + */ +static void mvneta_set_special_mcast_addr(struct mvneta_port *pp, + unsigned char last_byte, + int queue) +{ + unsigned int smc_table_reg; + unsigned int tbl_offset; + unsigned int reg_offset; + + /* Register offset from SMC table base */ + tbl_offset = (last_byte / 4); + /* Entry offset within the above reg */ + reg_offset = last_byte % 4; + + smc_table_reg = mvreg_read(pp, (MVNETA_DA_FILT_SPEC_MCAST + + tbl_offset * 4)); + + if (queue == -1) + smc_table_reg &= ~(0xff << (8 * reg_offset)); + else { + smc_table_reg &= ~(0xff << (8 * reg_offset)); + smc_table_reg |= ((0x01 | (queue << 1)) << (8 * reg_offset)); + } + + mvreg_write(pp, MVNETA_DA_FILT_SPEC_MCAST + tbl_offset * 4, + smc_table_reg); +} + +/* This method controls the network device Other MAC multicast support. + * The Other Multicast Table is used for multicast of another type. + * A CRC-8 is used as an index to the Other Multicast Table entries + * in the DA-Filter table. + * The method gets the CRC-8 value from the calling routine and + * sets the Other Multicast Table appropriate entry according to the + * specified CRC-8 . + */ +static void mvneta_set_other_mcast_addr(struct mvneta_port *pp, + unsigned char crc8, + int queue) +{ + unsigned int omc_table_reg; + unsigned int tbl_offset; + unsigned int reg_offset; + + tbl_offset = (crc8 / 4) * 4; /* Register offset from OMC table base */ + reg_offset = crc8 % 4; /* Entry offset within the above reg */ + + omc_table_reg = mvreg_read(pp, MVNETA_DA_FILT_OTH_MCAST + tbl_offset); + + if (queue == -1) { + /* Clear accepts frame bit at specified Other DA table entry */ + omc_table_reg &= ~(0xff << (8 * reg_offset)); + } else { + omc_table_reg &= ~(0xff << (8 * reg_offset)); + omc_table_reg |= ((0x01 | (queue << 1)) << (8 * reg_offset)); + } + + mvreg_write(pp, MVNETA_DA_FILT_OTH_MCAST + tbl_offset, omc_table_reg); +} + +/* The network device supports multicast using two tables: + * 1) Special Multicast Table for MAC addresses of the form + * 0x01-00-5E-00-00-XX (where XX is between 0x00 and 0xFF). + * The MAC DA[7:0] bits are used as a pointer to the Special Multicast + * Table entries in the DA-Filter table. + * 2) Other Multicast Table for multicast of another type. A CRC-8 value + * is used as an index to the Other Multicast Table entries in the + * DA-Filter table. + */ +static int mvneta_mcast_addr_set(struct mvneta_port *pp, unsigned char *p_addr, + int queue) +{ + unsigned char crc_result = 0; + + if (memcmp(p_addr, "\x01\x00\x5e\x00\x00", 5) == 0) { + mvneta_set_special_mcast_addr(pp, p_addr[5], queue); + return 0; + } + + crc_result = mvneta_addr_crc(p_addr); + if (queue == -1) { + if (pp->mcast_count[crc_result] == 0) { + netdev_info(pp->dev, "No valid Mcast for crc8=0x%02x\n", + crc_result); + return -EINVAL; + } + + pp->mcast_count[crc_result]--; + if (pp->mcast_count[crc_result] != 0) { + netdev_info(pp->dev, + "After delete there are %d valid Mcast for crc8=0x%02x\n", + pp->mcast_count[crc_result], crc_result); + return -EINVAL; + } + } else + pp->mcast_count[crc_result]++; + + mvneta_set_other_mcast_addr(pp, crc_result, queue); + + return 0; +} + +/* Configure Fitering mode of Ethernet port */ +static void mvneta_rx_unicast_promisc_set(struct mvneta_port *pp, + int is_promisc) +{ + u32 port_cfg_reg, val; + + port_cfg_reg = mvreg_read(pp, MVNETA_PORT_CONFIG); + + val = mvreg_read(pp, MVNETA_TYPE_PRIO); + + /* Set / Clear UPM bit in port configuration register */ + if (is_promisc) { + /* Accept all Unicast addresses */ + port_cfg_reg |= MVNETA_UNI_PROMISC_MODE; + val |= MVNETA_FORCE_UNI; + mvreg_write(pp, MVNETA_MAC_ADDR_LOW, 0xffff); + mvreg_write(pp, MVNETA_MAC_ADDR_HIGH, 0xffffffff); + } else { + /* Reject all Unicast addresses */ + port_cfg_reg &= ~MVNETA_UNI_PROMISC_MODE; + val &= ~MVNETA_FORCE_UNI; + } + + mvreg_write(pp, MVNETA_PORT_CONFIG, port_cfg_reg); + mvreg_write(pp, MVNETA_TYPE_PRIO, val); +} + +/* register unicast and multicast addresses */ +static void mvneta_set_rx_mode(struct net_device *dev) +{ + struct mvneta_port *pp = netdev_priv(dev); + struct netdev_hw_addr *ha; + + if (dev->flags & IFF_PROMISC) { + /* Accept all: Multicast + Unicast */ + mvneta_rx_unicast_promisc_set(pp, 1); + mvneta_set_ucast_table(pp, pp->rxq_def); + mvneta_set_special_mcast_table(pp, pp->rxq_def); + mvneta_set_other_mcast_table(pp, pp->rxq_def); + } else { + /* Accept single Unicast */ + mvneta_rx_unicast_promisc_set(pp, 0); + mvneta_set_ucast_table(pp, -1); + mvneta_mac_addr_set(pp, dev->dev_addr, pp->rxq_def); + + if (dev->flags & IFF_ALLMULTI) { + /* Accept all multicast */ + mvneta_set_special_mcast_table(pp, pp->rxq_def); + mvneta_set_other_mcast_table(pp, pp->rxq_def); + } else { + /* Accept only initialized multicast */ + mvneta_set_special_mcast_table(pp, -1); + mvneta_set_other_mcast_table(pp, -1); + + if (!netdev_mc_empty(dev)) { + netdev_for_each_mc_addr(ha, dev) { + mvneta_mcast_addr_set(pp, ha->addr, + pp->rxq_def); + } + } + } + } +} + +/* Interrupt handling - the callback for request_irq() */ +static irqreturn_t mvneta_isr(int irq, void *dev_id) +{ + struct mvneta_port *pp = (struct mvneta_port *)dev_id; + + mvreg_write(pp, MVNETA_INTR_NEW_MASK, 0); + napi_schedule(&pp->napi); + + return IRQ_HANDLED; +} + +/* Interrupt handling - the callback for request_percpu_irq() */ +static irqreturn_t mvneta_percpu_isr(int irq, void *dev_id) +{ + struct mvneta_pcpu_port *port = (struct mvneta_pcpu_port *)dev_id; + + disable_percpu_irq(port->pp->dev->irq); + napi_schedule(&port->napi); + + return IRQ_HANDLED; +} + +static void mvneta_link_change(struct mvneta_port *pp) +{ + u32 gmac_stat = mvreg_read(pp, MVNETA_GMAC_STATUS); + + phylink_mac_change(pp->phylink, !!(gmac_stat & MVNETA_GMAC_LINK_UP)); +} + +/* NAPI handler + * Bits 0 - 7 of the causeRxTx register indicate that are transmitted + * packets on the corresponding TXQ (Bit 0 is for TX queue 1). + * Bits 8 -15 of the cause Rx Tx register indicate that are received + * packets on the corresponding RXQ (Bit 8 is for RX queue 0). + * Each CPU has its own causeRxTx register + */ +static int mvneta_poll(struct napi_struct *napi, int budget) +{ + int rx_done = 0; + u32 cause_rx_tx; + int rx_queue; + struct mvneta_port *pp = netdev_priv(napi->dev); + struct mvneta_pcpu_port *port = this_cpu_ptr(pp->ports); + + if (!netif_running(pp->dev)) { + napi_complete(napi); + return rx_done; + } + + /* Read cause register */ + cause_rx_tx = mvreg_read(pp, MVNETA_INTR_NEW_CAUSE); + if (cause_rx_tx & MVNETA_MISCINTR_INTR_MASK) { + u32 cause_misc = mvreg_read(pp, MVNETA_INTR_MISC_CAUSE); + + mvreg_write(pp, MVNETA_INTR_MISC_CAUSE, 0); + + if (cause_misc & (MVNETA_CAUSE_PHY_STATUS_CHANGE | + MVNETA_CAUSE_LINK_CHANGE)) + mvneta_link_change(pp); + } + + /* Release Tx descriptors */ + if (cause_rx_tx & MVNETA_TX_INTR_MASK_ALL) { + mvneta_tx_done_gbe(pp, (cause_rx_tx & MVNETA_TX_INTR_MASK_ALL)); + cause_rx_tx &= ~MVNETA_TX_INTR_MASK_ALL; + } + + /* For the case where the last mvneta_poll did not process all + * RX packets + */ + cause_rx_tx |= pp->neta_armada3700 ? pp->cause_rx_tx : + port->cause_rx_tx; + + rx_queue = fls(((cause_rx_tx >> 8) & 0xff)); + if (rx_queue) { + rx_queue = rx_queue - 1; + if (pp->bm_priv) + rx_done = mvneta_rx_hwbm(napi, pp, budget, + &pp->rxqs[rx_queue]); + else + rx_done = mvneta_rx_swbm(napi, pp, budget, + &pp->rxqs[rx_queue]); + } + + if (rx_done < budget) { + cause_rx_tx = 0; + napi_complete_done(napi, rx_done); + + if (pp->neta_armada3700) { + unsigned long flags; + + local_irq_save(flags); + mvreg_write(pp, MVNETA_INTR_NEW_MASK, + MVNETA_RX_INTR_MASK(rxq_number) | + MVNETA_TX_INTR_MASK(txq_number) | + MVNETA_MISCINTR_INTR_MASK); + local_irq_restore(flags); + } else { + enable_percpu_irq(pp->dev->irq, 0); + } + } + + if (pp->neta_armada3700) + pp->cause_rx_tx = cause_rx_tx; + else + port->cause_rx_tx = cause_rx_tx; + + return rx_done; +} + +static int mvneta_create_page_pool(struct mvneta_port *pp, + struct mvneta_rx_queue *rxq, int size) +{ + struct bpf_prog *xdp_prog = READ_ONCE(pp->xdp_prog); + struct page_pool_params pp_params = { + .order = 0, + .flags = PP_FLAG_DMA_MAP | PP_FLAG_DMA_SYNC_DEV, + .pool_size = size, + .nid = NUMA_NO_NODE, + .dev = pp->dev->dev.parent, + .dma_dir = xdp_prog ? DMA_BIDIRECTIONAL : DMA_FROM_DEVICE, + .offset = pp->rx_offset_correction, + .max_len = MVNETA_MAX_RX_BUF_SIZE, + }; + int err; + + rxq->page_pool = page_pool_create(&pp_params); + if (IS_ERR(rxq->page_pool)) { + err = PTR_ERR(rxq->page_pool); + rxq->page_pool = NULL; + return err; + } + + err = __xdp_rxq_info_reg(&rxq->xdp_rxq, pp->dev, rxq->id, 0, + PAGE_SIZE); + if (err < 0) + goto err_free_pp; + + err = xdp_rxq_info_reg_mem_model(&rxq->xdp_rxq, MEM_TYPE_PAGE_POOL, + rxq->page_pool); + if (err) + goto err_unregister_rxq; + + return 0; + +err_unregister_rxq: + xdp_rxq_info_unreg(&rxq->xdp_rxq); +err_free_pp: + page_pool_destroy(rxq->page_pool); + rxq->page_pool = NULL; + return err; +} + +/* Handle rxq fill: allocates rxq skbs; called when initializing a port */ +static int mvneta_rxq_fill(struct mvneta_port *pp, struct mvneta_rx_queue *rxq, + int num) +{ + int i, err; + + err = mvneta_create_page_pool(pp, rxq, num); + if (err < 0) + return err; + + for (i = 0; i < num; i++) { + memset(rxq->descs + i, 0, sizeof(struct mvneta_rx_desc)); + if (mvneta_rx_refill(pp, rxq->descs + i, rxq, + GFP_KERNEL) != 0) { + netdev_err(pp->dev, + "%s:rxq %d, %d of %d buffs filled\n", + __func__, rxq->id, i, num); + break; + } + } + + /* Add this number of RX descriptors as non occupied (ready to + * get packets) + */ + mvneta_rxq_non_occup_desc_add(pp, rxq, i); + + return i; +} + +/* Free all packets pending transmit from all TXQs and reset TX port */ +static void mvneta_tx_reset(struct mvneta_port *pp) +{ + int queue; + + /* free the skb's in the tx ring */ + for (queue = 0; queue < txq_number; queue++) + mvneta_txq_done_force(pp, &pp->txqs[queue]); + + mvreg_write(pp, MVNETA_PORT_TX_RESET, MVNETA_PORT_TX_DMA_RESET); + mvreg_write(pp, MVNETA_PORT_TX_RESET, 0); +} + +static void mvneta_rx_reset(struct mvneta_port *pp) +{ + mvreg_write(pp, MVNETA_PORT_RX_RESET, MVNETA_PORT_RX_DMA_RESET); + mvreg_write(pp, MVNETA_PORT_RX_RESET, 0); +} + +/* Rx/Tx queue initialization/cleanup methods */ + +static int mvneta_rxq_sw_init(struct mvneta_port *pp, + struct mvneta_rx_queue *rxq) +{ + rxq->size = pp->rx_ring_size; + + /* Allocate memory for RX descriptors */ + rxq->descs = dma_alloc_coherent(pp->dev->dev.parent, + rxq->size * MVNETA_DESC_ALIGNED_SIZE, + &rxq->descs_phys, GFP_KERNEL); + if (!rxq->descs) + return -ENOMEM; + + rxq->last_desc = rxq->size - 1; + + return 0; +} + +static void mvneta_rxq_hw_init(struct mvneta_port *pp, + struct mvneta_rx_queue *rxq) +{ + /* Set Rx descriptors queue starting address */ + mvreg_write(pp, MVNETA_RXQ_BASE_ADDR_REG(rxq->id), rxq->descs_phys); + mvreg_write(pp, MVNETA_RXQ_SIZE_REG(rxq->id), rxq->size); + + /* Set coalescing pkts and time */ + mvneta_rx_pkts_coal_set(pp, rxq, rxq->pkts_coal); + mvneta_rx_time_coal_set(pp, rxq, rxq->time_coal); + + if (!pp->bm_priv) { + /* Set Offset */ + mvneta_rxq_offset_set(pp, rxq, 0); + mvneta_rxq_buf_size_set(pp, rxq, PAGE_SIZE < SZ_64K ? + MVNETA_MAX_RX_BUF_SIZE : + MVNETA_RX_BUF_SIZE(pp->pkt_size)); + mvneta_rxq_bm_disable(pp, rxq); + mvneta_rxq_fill(pp, rxq, rxq->size); + } else { + /* Set Offset */ + mvneta_rxq_offset_set(pp, rxq, + NET_SKB_PAD - pp->rx_offset_correction); + + mvneta_rxq_bm_enable(pp, rxq); + /* Fill RXQ with buffers from RX pool */ + mvneta_rxq_long_pool_set(pp, rxq); + mvneta_rxq_short_pool_set(pp, rxq); + mvneta_rxq_non_occup_desc_add(pp, rxq, rxq->size); + } +} + +/* Create a specified RX queue */ +static int mvneta_rxq_init(struct mvneta_port *pp, + struct mvneta_rx_queue *rxq) + +{ + int ret; + + ret = mvneta_rxq_sw_init(pp, rxq); + if (ret < 0) + return ret; + + mvneta_rxq_hw_init(pp, rxq); + + return 0; +} + +/* Cleanup Rx queue */ +static void mvneta_rxq_deinit(struct mvneta_port *pp, + struct mvneta_rx_queue *rxq) +{ + mvneta_rxq_drop_pkts(pp, rxq); + + if (rxq->descs) + dma_free_coherent(pp->dev->dev.parent, + rxq->size * MVNETA_DESC_ALIGNED_SIZE, + rxq->descs, + rxq->descs_phys); + + rxq->descs = NULL; + rxq->last_desc = 0; + rxq->next_desc_to_proc = 0; + rxq->descs_phys = 0; + rxq->first_to_refill = 0; + rxq->refill_num = 0; +} + +static int mvneta_txq_sw_init(struct mvneta_port *pp, + struct mvneta_tx_queue *txq) +{ + int cpu; + + txq->size = pp->tx_ring_size; + + /* A queue must always have room for at least one skb. + * Therefore, stop the queue when the free entries reaches + * the maximum number of descriptors per skb. + */ + txq->tx_stop_threshold = txq->size - MVNETA_MAX_SKB_DESCS; + txq->tx_wake_threshold = txq->tx_stop_threshold / 2; + + /* Allocate memory for TX descriptors */ + txq->descs = dma_alloc_coherent(pp->dev->dev.parent, + txq->size * MVNETA_DESC_ALIGNED_SIZE, + &txq->descs_phys, GFP_KERNEL); + if (!txq->descs) + return -ENOMEM; + + txq->last_desc = txq->size - 1; + + txq->buf = kmalloc_array(txq->size, sizeof(*txq->buf), GFP_KERNEL); + if (!txq->buf) + return -ENOMEM; + + /* Allocate DMA buffers for TSO MAC/IP/TCP headers */ + txq->tso_hdrs = dma_alloc_coherent(pp->dev->dev.parent, + txq->size * TSO_HEADER_SIZE, + &txq->tso_hdrs_phys, GFP_KERNEL); + if (!txq->tso_hdrs) + return -ENOMEM; + + /* Setup XPS mapping */ + if (pp->neta_armada3700) + cpu = 0; + else if (txq_number > 1) + cpu = txq->id % num_present_cpus(); + else + cpu = pp->rxq_def % num_present_cpus(); + cpumask_set_cpu(cpu, &txq->affinity_mask); + netif_set_xps_queue(pp->dev, &txq->affinity_mask, txq->id); + + return 0; +} + +static void mvneta_txq_hw_init(struct mvneta_port *pp, + struct mvneta_tx_queue *txq) +{ + /* Set maximum bandwidth for enabled TXQs */ + mvreg_write(pp, MVETH_TXQ_TOKEN_CFG_REG(txq->id), 0x03ffffff); + mvreg_write(pp, MVETH_TXQ_TOKEN_COUNT_REG(txq->id), 0x3fffffff); + + /* Set Tx descriptors queue starting address */ + mvreg_write(pp, MVNETA_TXQ_BASE_ADDR_REG(txq->id), txq->descs_phys); + mvreg_write(pp, MVNETA_TXQ_SIZE_REG(txq->id), txq->size); + + mvneta_tx_done_pkts_coal_set(pp, txq, txq->done_pkts_coal); +} + +/* Create and initialize a tx queue */ +static int mvneta_txq_init(struct mvneta_port *pp, + struct mvneta_tx_queue *txq) +{ + int ret; + + ret = mvneta_txq_sw_init(pp, txq); + if (ret < 0) + return ret; + + mvneta_txq_hw_init(pp, txq); + + return 0; +} + +/* Free allocated resources when mvneta_txq_init() fails to allocate memory*/ +static void mvneta_txq_sw_deinit(struct mvneta_port *pp, + struct mvneta_tx_queue *txq) +{ + struct netdev_queue *nq = netdev_get_tx_queue(pp->dev, txq->id); + + kfree(txq->buf); + + if (txq->tso_hdrs) + dma_free_coherent(pp->dev->dev.parent, + txq->size * TSO_HEADER_SIZE, + txq->tso_hdrs, txq->tso_hdrs_phys); + if (txq->descs) + dma_free_coherent(pp->dev->dev.parent, + txq->size * MVNETA_DESC_ALIGNED_SIZE, + txq->descs, txq->descs_phys); + + netdev_tx_reset_queue(nq); + + txq->descs = NULL; + txq->last_desc = 0; + txq->next_desc_to_proc = 0; + txq->descs_phys = 0; +} + +static void mvneta_txq_hw_deinit(struct mvneta_port *pp, + struct mvneta_tx_queue *txq) +{ + /* Set minimum bandwidth for disabled TXQs */ + mvreg_write(pp, MVETH_TXQ_TOKEN_CFG_REG(txq->id), 0); + mvreg_write(pp, MVETH_TXQ_TOKEN_COUNT_REG(txq->id), 0); + + /* Set Tx descriptors queue starting address and size */ + mvreg_write(pp, MVNETA_TXQ_BASE_ADDR_REG(txq->id), 0); + mvreg_write(pp, MVNETA_TXQ_SIZE_REG(txq->id), 0); +} + +static void mvneta_txq_deinit(struct mvneta_port *pp, + struct mvneta_tx_queue *txq) +{ + mvneta_txq_sw_deinit(pp, txq); + mvneta_txq_hw_deinit(pp, txq); +} + +/* Cleanup all Tx queues */ +static void mvneta_cleanup_txqs(struct mvneta_port *pp) +{ + int queue; + + for (queue = 0; queue < txq_number; queue++) + mvneta_txq_deinit(pp, &pp->txqs[queue]); +} + +/* Cleanup all Rx queues */ +static void mvneta_cleanup_rxqs(struct mvneta_port *pp) +{ + int queue; + + for (queue = 0; queue < rxq_number; queue++) + mvneta_rxq_deinit(pp, &pp->rxqs[queue]); +} + + +/* Init all Rx queues */ +static int mvneta_setup_rxqs(struct mvneta_port *pp) +{ + int queue; + + for (queue = 0; queue < rxq_number; queue++) { + int err = mvneta_rxq_init(pp, &pp->rxqs[queue]); + + if (err) { + netdev_err(pp->dev, "%s: can't create rxq=%d\n", + __func__, queue); + mvneta_cleanup_rxqs(pp); + return err; + } + } + + return 0; +} + +/* Init all tx queues */ +static int mvneta_setup_txqs(struct mvneta_port *pp) +{ + int queue; + + for (queue = 0; queue < txq_number; queue++) { + int err = mvneta_txq_init(pp, &pp->txqs[queue]); + if (err) { + netdev_err(pp->dev, "%s: can't create txq=%d\n", + __func__, queue); + mvneta_cleanup_txqs(pp); + return err; + } + } + + return 0; +} + +static int mvneta_comphy_init(struct mvneta_port *pp, phy_interface_t interface) +{ + int ret; + + ret = phy_set_mode_ext(pp->comphy, PHY_MODE_ETHERNET, interface); + if (ret) + return ret; + + return phy_power_on(pp->comphy); +} + +static int mvneta_config_interface(struct mvneta_port *pp, + phy_interface_t interface) +{ + int ret = 0; + + if (pp->comphy) { + if (interface == PHY_INTERFACE_MODE_SGMII || + interface == PHY_INTERFACE_MODE_1000BASEX || + interface == PHY_INTERFACE_MODE_2500BASEX) { + ret = mvneta_comphy_init(pp, interface); + } + } else { + switch (interface) { + case PHY_INTERFACE_MODE_QSGMII: + mvreg_write(pp, MVNETA_SERDES_CFG, + MVNETA_QSGMII_SERDES_PROTO); + break; + + case PHY_INTERFACE_MODE_SGMII: + case PHY_INTERFACE_MODE_1000BASEX: + mvreg_write(pp, MVNETA_SERDES_CFG, + MVNETA_SGMII_SERDES_PROTO); + break; + + case PHY_INTERFACE_MODE_2500BASEX: + mvreg_write(pp, MVNETA_SERDES_CFG, + MVNETA_HSGMII_SERDES_PROTO); + break; + default: + break; + } + } + + pp->phy_interface = interface; + + return ret; +} + +static void mvneta_start_dev(struct mvneta_port *pp) +{ + int cpu; + + WARN_ON(mvneta_config_interface(pp, pp->phy_interface)); + + mvneta_max_rx_size_set(pp, pp->pkt_size); + mvneta_txq_max_tx_size_set(pp, pp->pkt_size); + + /* start the Rx/Tx activity */ + mvneta_port_enable(pp); + + if (!pp->neta_armada3700) { + /* Enable polling on the port */ + for_each_online_cpu(cpu) { + struct mvneta_pcpu_port *port = + per_cpu_ptr(pp->ports, cpu); + + napi_enable(&port->napi); + } + } else { + napi_enable(&pp->napi); + } + + /* Unmask interrupts. It has to be done from each CPU */ + on_each_cpu(mvneta_percpu_unmask_interrupt, pp, true); + + mvreg_write(pp, MVNETA_INTR_MISC_MASK, + MVNETA_CAUSE_PHY_STATUS_CHANGE | + MVNETA_CAUSE_LINK_CHANGE); + + phylink_start(pp->phylink); + + /* We may have called phylink_speed_down before */ + phylink_speed_up(pp->phylink); + + netif_tx_start_all_queues(pp->dev); + + clear_bit(__MVNETA_DOWN, &pp->state); +} + +static void mvneta_stop_dev(struct mvneta_port *pp) +{ + unsigned int cpu; + + set_bit(__MVNETA_DOWN, &pp->state); + + if (device_may_wakeup(&pp->dev->dev)) + phylink_speed_down(pp->phylink, false); + + phylink_stop(pp->phylink); + + if (!pp->neta_armada3700) { + for_each_online_cpu(cpu) { + struct mvneta_pcpu_port *port = + per_cpu_ptr(pp->ports, cpu); + + napi_disable(&port->napi); + } + } else { + napi_disable(&pp->napi); + } + + netif_carrier_off(pp->dev); + + mvneta_port_down(pp); + netif_tx_stop_all_queues(pp->dev); + + /* Stop the port activity */ + mvneta_port_disable(pp); + + /* Clear all ethernet port interrupts */ + on_each_cpu(mvneta_percpu_clear_intr_cause, pp, true); + + /* Mask all ethernet port interrupts */ + on_each_cpu(mvneta_percpu_mask_interrupt, pp, true); + + mvneta_tx_reset(pp); + mvneta_rx_reset(pp); + + WARN_ON(phy_power_off(pp->comphy)); +} + +static void mvneta_percpu_enable(void *arg) +{ + struct mvneta_port *pp = arg; + + enable_percpu_irq(pp->dev->irq, IRQ_TYPE_NONE); +} + +static void mvneta_percpu_disable(void *arg) +{ + struct mvneta_port *pp = arg; + + disable_percpu_irq(pp->dev->irq); +} + +/* Change the device mtu */ +static int mvneta_change_mtu(struct net_device *dev, int mtu) +{ + struct mvneta_port *pp = netdev_priv(dev); + struct bpf_prog *prog = pp->xdp_prog; + int ret; + + if (!IS_ALIGNED(MVNETA_RX_PKT_SIZE(mtu), 8)) { + netdev_info(dev, "Illegal MTU value %d, rounding to %d\n", + mtu, ALIGN(MVNETA_RX_PKT_SIZE(mtu), 8)); + mtu = ALIGN(MVNETA_RX_PKT_SIZE(mtu), 8); + } + + if (prog && !prog->aux->xdp_has_frags && + mtu > MVNETA_MAX_RX_BUF_SIZE) { + netdev_info(dev, "Illegal MTU %d for XDP prog without frags\n", + mtu); + + return -EINVAL; + } + + dev->mtu = mtu; + + if (!netif_running(dev)) { + if (pp->bm_priv) + mvneta_bm_update_mtu(pp, mtu); + + netdev_update_features(dev); + return 0; + } + + /* The interface is running, so we have to force a + * reallocation of the queues + */ + mvneta_stop_dev(pp); + on_each_cpu(mvneta_percpu_disable, pp, true); + + mvneta_cleanup_txqs(pp); + mvneta_cleanup_rxqs(pp); + + if (pp->bm_priv) + mvneta_bm_update_mtu(pp, mtu); + + pp->pkt_size = MVNETA_RX_PKT_SIZE(dev->mtu); + + ret = mvneta_setup_rxqs(pp); + if (ret) { + netdev_err(dev, "unable to setup rxqs after MTU change\n"); + return ret; + } + + ret = mvneta_setup_txqs(pp); + if (ret) { + netdev_err(dev, "unable to setup txqs after MTU change\n"); + return ret; + } + + on_each_cpu(mvneta_percpu_enable, pp, true); + mvneta_start_dev(pp); + + netdev_update_features(dev); + + return 0; +} + +static netdev_features_t mvneta_fix_features(struct net_device *dev, + netdev_features_t features) +{ + struct mvneta_port *pp = netdev_priv(dev); + + if (pp->tx_csum_limit && dev->mtu > pp->tx_csum_limit) { + features &= ~(NETIF_F_IP_CSUM | NETIF_F_TSO); + netdev_info(dev, + "Disable IP checksum for MTU greater than %dB\n", + pp->tx_csum_limit); + } + + return features; +} + +/* Get mac address */ +static void mvneta_get_mac_addr(struct mvneta_port *pp, unsigned char *addr) +{ + u32 mac_addr_l, mac_addr_h; + + mac_addr_l = mvreg_read(pp, MVNETA_MAC_ADDR_LOW); + mac_addr_h = mvreg_read(pp, MVNETA_MAC_ADDR_HIGH); + addr[0] = (mac_addr_h >> 24) & 0xFF; + addr[1] = (mac_addr_h >> 16) & 0xFF; + addr[2] = (mac_addr_h >> 8) & 0xFF; + addr[3] = mac_addr_h & 0xFF; + addr[4] = (mac_addr_l >> 8) & 0xFF; + addr[5] = mac_addr_l & 0xFF; +} + +/* Handle setting mac address */ +static int mvneta_set_mac_addr(struct net_device *dev, void *addr) +{ + struct mvneta_port *pp = netdev_priv(dev); + struct sockaddr *sockaddr = addr; + int ret; + + ret = eth_prepare_mac_addr_change(dev, addr); + if (ret < 0) + return ret; + /* Remove previous address table entry */ + mvneta_mac_addr_set(pp, dev->dev_addr, -1); + + /* Set new addr in hw */ + mvneta_mac_addr_set(pp, sockaddr->sa_data, pp->rxq_def); + + eth_commit_mac_addr_change(dev, addr); + return 0; +} + +static struct mvneta_port *mvneta_pcs_to_port(struct phylink_pcs *pcs) +{ + return container_of(pcs, struct mvneta_port, phylink_pcs); +} + +static int mvneta_pcs_validate(struct phylink_pcs *pcs, + unsigned long *supported, + const struct phylink_link_state *state) +{ + /* We only support QSGMII, SGMII, 802.3z and RGMII modes. + * When in 802.3z mode, we must have AN enabled: + * "Bit 2 Field InBandAnEn In-band Auto-Negotiation enable. ... + * When <PortType> = 1 (1000BASE-X) this field must be set to 1." + */ + if (phy_interface_mode_is_8023z(state->interface) && + !phylink_test(state->advertising, Autoneg)) + return -EINVAL; + + return 0; +} + +static void mvneta_pcs_get_state(struct phylink_pcs *pcs, + struct phylink_link_state *state) +{ + struct mvneta_port *pp = mvneta_pcs_to_port(pcs); + u32 gmac_stat; + + gmac_stat = mvreg_read(pp, MVNETA_GMAC_STATUS); + + if (gmac_stat & MVNETA_GMAC_SPEED_1000) + state->speed = + state->interface == PHY_INTERFACE_MODE_2500BASEX ? + SPEED_2500 : SPEED_1000; + else if (gmac_stat & MVNETA_GMAC_SPEED_100) + state->speed = SPEED_100; + else + state->speed = SPEED_10; + + state->an_complete = !!(gmac_stat & MVNETA_GMAC_AN_COMPLETE); + state->link = !!(gmac_stat & MVNETA_GMAC_LINK_UP); + state->duplex = !!(gmac_stat & MVNETA_GMAC_FULL_DUPLEX); + + if (gmac_stat & MVNETA_GMAC_RX_FLOW_CTRL_ENABLE) + state->pause |= MLO_PAUSE_RX; + if (gmac_stat & MVNETA_GMAC_TX_FLOW_CTRL_ENABLE) + state->pause |= MLO_PAUSE_TX; +} + +static int mvneta_pcs_config(struct phylink_pcs *pcs, + unsigned int mode, phy_interface_t interface, + const unsigned long *advertising, + bool permit_pause_to_mac) +{ + struct mvneta_port *pp = mvneta_pcs_to_port(pcs); + u32 mask, val, an, old_an, changed; + + mask = MVNETA_GMAC_INBAND_AN_ENABLE | + MVNETA_GMAC_INBAND_RESTART_AN | + MVNETA_GMAC_AN_SPEED_EN | + MVNETA_GMAC_AN_FLOW_CTRL_EN | + MVNETA_GMAC_AN_DUPLEX_EN; + + if (phylink_autoneg_inband(mode)) { + mask |= MVNETA_GMAC_CONFIG_MII_SPEED | + MVNETA_GMAC_CONFIG_GMII_SPEED | + MVNETA_GMAC_CONFIG_FULL_DUPLEX; + val = MVNETA_GMAC_INBAND_AN_ENABLE; + + if (interface == PHY_INTERFACE_MODE_SGMII) { + /* SGMII mode receives the speed and duplex from PHY */ + val |= MVNETA_GMAC_AN_SPEED_EN | + MVNETA_GMAC_AN_DUPLEX_EN; + } else { + /* 802.3z mode has fixed speed and duplex */ + val |= MVNETA_GMAC_CONFIG_GMII_SPEED | + MVNETA_GMAC_CONFIG_FULL_DUPLEX; + + /* The FLOW_CTRL_EN bit selects either the hardware + * automatically or the CONFIG_FLOW_CTRL manually + * controls the GMAC pause mode. + */ + if (permit_pause_to_mac) + val |= MVNETA_GMAC_AN_FLOW_CTRL_EN; + + /* Update the advertisement bits */ + mask |= MVNETA_GMAC_ADVERT_SYM_FLOW_CTRL; + if (phylink_test(advertising, Pause)) + val |= MVNETA_GMAC_ADVERT_SYM_FLOW_CTRL; + } + } else { + /* Phy or fixed speed - disable in-band AN modes */ + val = 0; + } + + old_an = an = mvreg_read(pp, MVNETA_GMAC_AUTONEG_CONFIG); + an = (an & ~mask) | val; + changed = old_an ^ an; + if (changed) + mvreg_write(pp, MVNETA_GMAC_AUTONEG_CONFIG, an); + + /* We are only interested in the advertisement bits changing */ + return !!(changed & MVNETA_GMAC_ADVERT_SYM_FLOW_CTRL); +} + +static void mvneta_pcs_an_restart(struct phylink_pcs *pcs) +{ + struct mvneta_port *pp = mvneta_pcs_to_port(pcs); + u32 gmac_an = mvreg_read(pp, MVNETA_GMAC_AUTONEG_CONFIG); + + mvreg_write(pp, MVNETA_GMAC_AUTONEG_CONFIG, + gmac_an | MVNETA_GMAC_INBAND_RESTART_AN); + mvreg_write(pp, MVNETA_GMAC_AUTONEG_CONFIG, + gmac_an & ~MVNETA_GMAC_INBAND_RESTART_AN); +} + +static const struct phylink_pcs_ops mvneta_phylink_pcs_ops = { + .pcs_validate = mvneta_pcs_validate, + .pcs_get_state = mvneta_pcs_get_state, + .pcs_config = mvneta_pcs_config, + .pcs_an_restart = mvneta_pcs_an_restart, +}; + +static struct phylink_pcs *mvneta_mac_select_pcs(struct phylink_config *config, + phy_interface_t interface) +{ + struct net_device *ndev = to_net_dev(config->dev); + struct mvneta_port *pp = netdev_priv(ndev); + + return &pp->phylink_pcs; +} + +static int mvneta_mac_prepare(struct phylink_config *config, unsigned int mode, + phy_interface_t interface) +{ + struct net_device *ndev = to_net_dev(config->dev); + struct mvneta_port *pp = netdev_priv(ndev); + u32 val; + + if (pp->phy_interface != interface || + phylink_autoneg_inband(mode)) { + /* Force the link down when changing the interface or if in + * in-band mode. According to Armada 370 documentation, we + * can only change the port mode and in-band enable when the + * link is down. + */ + val = mvreg_read(pp, MVNETA_GMAC_AUTONEG_CONFIG); + val &= ~MVNETA_GMAC_FORCE_LINK_PASS; + val |= MVNETA_GMAC_FORCE_LINK_DOWN; + mvreg_write(pp, MVNETA_GMAC_AUTONEG_CONFIG, val); + } + + if (pp->phy_interface != interface) + WARN_ON(phy_power_off(pp->comphy)); + + /* Enable the 1ms clock */ + if (phylink_autoneg_inband(mode)) { + unsigned long rate = clk_get_rate(pp->clk); + + mvreg_write(pp, MVNETA_GMAC_CLOCK_DIVIDER, + MVNETA_GMAC_1MS_CLOCK_ENABLE | (rate / 1000)); + } + + return 0; +} + +static void mvneta_mac_config(struct phylink_config *config, unsigned int mode, + const struct phylink_link_state *state) +{ + struct net_device *ndev = to_net_dev(config->dev); + struct mvneta_port *pp = netdev_priv(ndev); + u32 new_ctrl0, gmac_ctrl0 = mvreg_read(pp, MVNETA_GMAC_CTRL_0); + u32 new_ctrl2, gmac_ctrl2 = mvreg_read(pp, MVNETA_GMAC_CTRL_2); + u32 new_ctrl4, gmac_ctrl4 = mvreg_read(pp, MVNETA_GMAC_CTRL_4); + + new_ctrl0 = gmac_ctrl0 & ~MVNETA_GMAC0_PORT_1000BASE_X; + new_ctrl2 = gmac_ctrl2 & ~(MVNETA_GMAC2_INBAND_AN_ENABLE | + MVNETA_GMAC2_PORT_RESET); + new_ctrl4 = gmac_ctrl4 & ~(MVNETA_GMAC4_SHORT_PREAMBLE_ENABLE); + + /* Even though it might look weird, when we're configured in + * SGMII or QSGMII mode, the RGMII bit needs to be set. + */ + new_ctrl2 |= MVNETA_GMAC2_PORT_RGMII; + + if (state->interface == PHY_INTERFACE_MODE_QSGMII || + state->interface == PHY_INTERFACE_MODE_SGMII || + phy_interface_mode_is_8023z(state->interface)) + new_ctrl2 |= MVNETA_GMAC2_PCS_ENABLE; + + if (!phylink_autoneg_inband(mode)) { + /* Phy or fixed speed - nothing to do, leave the + * configured speed, duplex and flow control as-is. + */ + } else if (state->interface == PHY_INTERFACE_MODE_SGMII) { + /* SGMII mode receives the state from the PHY */ + new_ctrl2 |= MVNETA_GMAC2_INBAND_AN_ENABLE; + } else { + /* 802.3z negotiation - only 1000base-X */ + new_ctrl0 |= MVNETA_GMAC0_PORT_1000BASE_X; + } + + /* When at 2.5G, the link partner can send frames with shortened + * preambles. + */ + if (state->interface == PHY_INTERFACE_MODE_2500BASEX) + new_ctrl4 |= MVNETA_GMAC4_SHORT_PREAMBLE_ENABLE; + + if (new_ctrl0 != gmac_ctrl0) + mvreg_write(pp, MVNETA_GMAC_CTRL_0, new_ctrl0); + if (new_ctrl2 != gmac_ctrl2) + mvreg_write(pp, MVNETA_GMAC_CTRL_2, new_ctrl2); + if (new_ctrl4 != gmac_ctrl4) + mvreg_write(pp, MVNETA_GMAC_CTRL_4, new_ctrl4); + + if (gmac_ctrl2 & MVNETA_GMAC2_PORT_RESET) { + while ((mvreg_read(pp, MVNETA_GMAC_CTRL_2) & + MVNETA_GMAC2_PORT_RESET) != 0) + continue; + } +} + +static int mvneta_mac_finish(struct phylink_config *config, unsigned int mode, + phy_interface_t interface) +{ + struct net_device *ndev = to_net_dev(config->dev); + struct mvneta_port *pp = netdev_priv(ndev); + u32 val, clk; + + /* Disable 1ms clock if not in in-band mode */ + if (!phylink_autoneg_inband(mode)) { + clk = mvreg_read(pp, MVNETA_GMAC_CLOCK_DIVIDER); + clk &= ~MVNETA_GMAC_1MS_CLOCK_ENABLE; + mvreg_write(pp, MVNETA_GMAC_CLOCK_DIVIDER, clk); + } + + if (pp->phy_interface != interface) + /* Enable the Serdes PHY */ + WARN_ON(mvneta_config_interface(pp, interface)); + + /* Allow the link to come up if in in-band mode, otherwise the + * link is forced via mac_link_down()/mac_link_up() + */ + if (phylink_autoneg_inband(mode)) { + val = mvreg_read(pp, MVNETA_GMAC_AUTONEG_CONFIG); + val &= ~MVNETA_GMAC_FORCE_LINK_DOWN; + mvreg_write(pp, MVNETA_GMAC_AUTONEG_CONFIG, val); + } + + return 0; +} + +static void mvneta_set_eee(struct mvneta_port *pp, bool enable) +{ + u32 lpi_ctl1; + + lpi_ctl1 = mvreg_read(pp, MVNETA_LPI_CTRL_1); + if (enable) + lpi_ctl1 |= MVNETA_LPI_REQUEST_ENABLE; + else + lpi_ctl1 &= ~MVNETA_LPI_REQUEST_ENABLE; + mvreg_write(pp, MVNETA_LPI_CTRL_1, lpi_ctl1); +} + +static void mvneta_mac_link_down(struct phylink_config *config, + unsigned int mode, phy_interface_t interface) +{ + struct net_device *ndev = to_net_dev(config->dev); + struct mvneta_port *pp = netdev_priv(ndev); + u32 val; + + mvneta_port_down(pp); + + if (!phylink_autoneg_inband(mode)) { + val = mvreg_read(pp, MVNETA_GMAC_AUTONEG_CONFIG); + val &= ~MVNETA_GMAC_FORCE_LINK_PASS; + val |= MVNETA_GMAC_FORCE_LINK_DOWN; + mvreg_write(pp, MVNETA_GMAC_AUTONEG_CONFIG, val); + } + + pp->eee_active = false; + mvneta_set_eee(pp, false); +} + +static void mvneta_mac_link_up(struct phylink_config *config, + struct phy_device *phy, + unsigned int mode, phy_interface_t interface, + int speed, int duplex, + bool tx_pause, bool rx_pause) +{ + struct net_device *ndev = to_net_dev(config->dev); + struct mvneta_port *pp = netdev_priv(ndev); + u32 val; + + if (!phylink_autoneg_inband(mode)) { + val = mvreg_read(pp, MVNETA_GMAC_AUTONEG_CONFIG); + val &= ~(MVNETA_GMAC_FORCE_LINK_DOWN | + MVNETA_GMAC_CONFIG_MII_SPEED | + MVNETA_GMAC_CONFIG_GMII_SPEED | + MVNETA_GMAC_CONFIG_FLOW_CTRL | + MVNETA_GMAC_CONFIG_FULL_DUPLEX); + val |= MVNETA_GMAC_FORCE_LINK_PASS; + + if (speed == SPEED_1000 || speed == SPEED_2500) + val |= MVNETA_GMAC_CONFIG_GMII_SPEED; + else if (speed == SPEED_100) + val |= MVNETA_GMAC_CONFIG_MII_SPEED; + + if (duplex == DUPLEX_FULL) + val |= MVNETA_GMAC_CONFIG_FULL_DUPLEX; + + if (tx_pause || rx_pause) + val |= MVNETA_GMAC_CONFIG_FLOW_CTRL; + + mvreg_write(pp, MVNETA_GMAC_AUTONEG_CONFIG, val); + } else { + /* When inband doesn't cover flow control or flow control is + * disabled, we need to manually configure it. This bit will + * only have effect if MVNETA_GMAC_AN_FLOW_CTRL_EN is unset. + */ + val = mvreg_read(pp, MVNETA_GMAC_AUTONEG_CONFIG); + val &= ~MVNETA_GMAC_CONFIG_FLOW_CTRL; + + if (tx_pause || rx_pause) + val |= MVNETA_GMAC_CONFIG_FLOW_CTRL; + + mvreg_write(pp, MVNETA_GMAC_AUTONEG_CONFIG, val); + } + + mvneta_port_up(pp); + + if (phy && pp->eee_enabled) { + pp->eee_active = phy_init_eee(phy, false) >= 0; + mvneta_set_eee(pp, pp->eee_active && pp->tx_lpi_enabled); + } +} + +static const struct phylink_mac_ops mvneta_phylink_ops = { + .validate = phylink_generic_validate, + .mac_select_pcs = mvneta_mac_select_pcs, + .mac_prepare = mvneta_mac_prepare, + .mac_config = mvneta_mac_config, + .mac_finish = mvneta_mac_finish, + .mac_link_down = mvneta_mac_link_down, + .mac_link_up = mvneta_mac_link_up, +}; + +static int mvneta_mdio_probe(struct mvneta_port *pp) +{ + struct ethtool_wolinfo wol = { .cmd = ETHTOOL_GWOL }; + int err = phylink_of_phy_connect(pp->phylink, pp->dn, 0); + + if (err) + netdev_err(pp->dev, "could not attach PHY: %d\n", err); + + phylink_ethtool_get_wol(pp->phylink, &wol); + device_set_wakeup_capable(&pp->dev->dev, !!wol.supported); + + /* PHY WoL may be enabled but device wakeup disabled */ + if (wol.supported) + device_set_wakeup_enable(&pp->dev->dev, !!wol.wolopts); + + return err; +} + +static void mvneta_mdio_remove(struct mvneta_port *pp) +{ + phylink_disconnect_phy(pp->phylink); +} + +/* Electing a CPU must be done in an atomic way: it should be done + * after or before the removal/insertion of a CPU and this function is + * not reentrant. + */ +static void mvneta_percpu_elect(struct mvneta_port *pp) +{ + int elected_cpu = 0, max_cpu, cpu, i = 0; + + /* Use the cpu associated to the rxq when it is online, in all + * the other cases, use the cpu 0 which can't be offline. + */ + if (pp->rxq_def < nr_cpu_ids && cpu_online(pp->rxq_def)) + elected_cpu = pp->rxq_def; + + max_cpu = num_present_cpus(); + + for_each_online_cpu(cpu) { + int rxq_map = 0, txq_map = 0; + int rxq; + + for (rxq = 0; rxq < rxq_number; rxq++) + if ((rxq % max_cpu) == cpu) + rxq_map |= MVNETA_CPU_RXQ_ACCESS(rxq); + + if (cpu == elected_cpu) + /* Map the default receive queue to the elected CPU */ + rxq_map |= MVNETA_CPU_RXQ_ACCESS(pp->rxq_def); + + /* We update the TX queue map only if we have one + * queue. In this case we associate the TX queue to + * the CPU bound to the default RX queue + */ + if (txq_number == 1) + txq_map = (cpu == elected_cpu) ? + MVNETA_CPU_TXQ_ACCESS(0) : 0; + else + txq_map = mvreg_read(pp, MVNETA_CPU_MAP(cpu)) & + MVNETA_CPU_TXQ_ACCESS_ALL_MASK; + + mvreg_write(pp, MVNETA_CPU_MAP(cpu), rxq_map | txq_map); + + /* Update the interrupt mask on each CPU according the + * new mapping + */ + smp_call_function_single(cpu, mvneta_percpu_unmask_interrupt, + pp, true); + i++; + + } +}; + +static int mvneta_cpu_online(unsigned int cpu, struct hlist_node *node) +{ + int other_cpu; + struct mvneta_port *pp = hlist_entry_safe(node, struct mvneta_port, + node_online); + struct mvneta_pcpu_port *port = per_cpu_ptr(pp->ports, cpu); + + /* Armada 3700's per-cpu interrupt for mvneta is broken, all interrupts + * are routed to CPU 0, so we don't need all the cpu-hotplug support + */ + if (pp->neta_armada3700) + return 0; + + spin_lock(&pp->lock); + /* + * Configuring the driver for a new CPU while the driver is + * stopping is racy, so just avoid it. + */ + if (pp->is_stopped) { + spin_unlock(&pp->lock); + return 0; + } + netif_tx_stop_all_queues(pp->dev); + + /* + * We have to synchronise on tha napi of each CPU except the one + * just being woken up + */ + for_each_online_cpu(other_cpu) { + if (other_cpu != cpu) { + struct mvneta_pcpu_port *other_port = + per_cpu_ptr(pp->ports, other_cpu); + + napi_synchronize(&other_port->napi); + } + } + + /* Mask all ethernet port interrupts */ + on_each_cpu(mvneta_percpu_mask_interrupt, pp, true); + napi_enable(&port->napi); + + /* + * Enable per-CPU interrupts on the CPU that is + * brought up. + */ + mvneta_percpu_enable(pp); + + /* + * Enable per-CPU interrupt on the one CPU we care + * about. + */ + mvneta_percpu_elect(pp); + + /* Unmask all ethernet port interrupts */ + on_each_cpu(mvneta_percpu_unmask_interrupt, pp, true); + mvreg_write(pp, MVNETA_INTR_MISC_MASK, + MVNETA_CAUSE_PHY_STATUS_CHANGE | + MVNETA_CAUSE_LINK_CHANGE); + netif_tx_start_all_queues(pp->dev); + spin_unlock(&pp->lock); + return 0; +} + +static int mvneta_cpu_down_prepare(unsigned int cpu, struct hlist_node *node) +{ + struct mvneta_port *pp = hlist_entry_safe(node, struct mvneta_port, + node_online); + struct mvneta_pcpu_port *port = per_cpu_ptr(pp->ports, cpu); + + /* + * Thanks to this lock we are sure that any pending cpu election is + * done. + */ + spin_lock(&pp->lock); + /* Mask all ethernet port interrupts */ + on_each_cpu(mvneta_percpu_mask_interrupt, pp, true); + spin_unlock(&pp->lock); + + napi_synchronize(&port->napi); + napi_disable(&port->napi); + /* Disable per-CPU interrupts on the CPU that is brought down. */ + mvneta_percpu_disable(pp); + return 0; +} + +static int mvneta_cpu_dead(unsigned int cpu, struct hlist_node *node) +{ + struct mvneta_port *pp = hlist_entry_safe(node, struct mvneta_port, + node_dead); + + /* Check if a new CPU must be elected now this on is down */ + spin_lock(&pp->lock); + mvneta_percpu_elect(pp); + spin_unlock(&pp->lock); + /* Unmask all ethernet port interrupts */ + on_each_cpu(mvneta_percpu_unmask_interrupt, pp, true); + mvreg_write(pp, MVNETA_INTR_MISC_MASK, + MVNETA_CAUSE_PHY_STATUS_CHANGE | + MVNETA_CAUSE_LINK_CHANGE); + netif_tx_start_all_queues(pp->dev); + return 0; +} + +static int mvneta_open(struct net_device *dev) +{ + struct mvneta_port *pp = netdev_priv(dev); + int ret; + + pp->pkt_size = MVNETA_RX_PKT_SIZE(pp->dev->mtu); + + ret = mvneta_setup_rxqs(pp); + if (ret) + return ret; + + ret = mvneta_setup_txqs(pp); + if (ret) + goto err_cleanup_rxqs; + + /* Connect to port interrupt line */ + if (pp->neta_armada3700) + ret = request_irq(pp->dev->irq, mvneta_isr, 0, + dev->name, pp); + else + ret = request_percpu_irq(pp->dev->irq, mvneta_percpu_isr, + dev->name, pp->ports); + if (ret) { + netdev_err(pp->dev, "cannot request irq %d\n", pp->dev->irq); + goto err_cleanup_txqs; + } + + if (!pp->neta_armada3700) { + /* Enable per-CPU interrupt on all the CPU to handle our RX + * queue interrupts + */ + on_each_cpu(mvneta_percpu_enable, pp, true); + + pp->is_stopped = false; + /* Register a CPU notifier to handle the case where our CPU + * might be taken offline. + */ + ret = cpuhp_state_add_instance_nocalls(online_hpstate, + &pp->node_online); + if (ret) + goto err_free_irq; + + ret = cpuhp_state_add_instance_nocalls(CPUHP_NET_MVNETA_DEAD, + &pp->node_dead); + if (ret) + goto err_free_online_hp; + } + + ret = mvneta_mdio_probe(pp); + if (ret < 0) { + netdev_err(dev, "cannot probe MDIO bus\n"); + goto err_free_dead_hp; + } + + mvneta_start_dev(pp); + + return 0; + +err_free_dead_hp: + if (!pp->neta_armada3700) + cpuhp_state_remove_instance_nocalls(CPUHP_NET_MVNETA_DEAD, + &pp->node_dead); +err_free_online_hp: + if (!pp->neta_armada3700) + cpuhp_state_remove_instance_nocalls(online_hpstate, + &pp->node_online); +err_free_irq: + if (pp->neta_armada3700) { + free_irq(pp->dev->irq, pp); + } else { + on_each_cpu(mvneta_percpu_disable, pp, true); + free_percpu_irq(pp->dev->irq, pp->ports); + } +err_cleanup_txqs: + mvneta_cleanup_txqs(pp); +err_cleanup_rxqs: + mvneta_cleanup_rxqs(pp); + return ret; +} + +/* Stop the port, free port interrupt line */ +static int mvneta_stop(struct net_device *dev) +{ + struct mvneta_port *pp = netdev_priv(dev); + + if (!pp->neta_armada3700) { + /* Inform that we are stopping so we don't want to setup the + * driver for new CPUs in the notifiers. The code of the + * notifier for CPU online is protected by the same spinlock, + * so when we get the lock, the notifer work is done. + */ + spin_lock(&pp->lock); + pp->is_stopped = true; + spin_unlock(&pp->lock); + + mvneta_stop_dev(pp); + mvneta_mdio_remove(pp); + + cpuhp_state_remove_instance_nocalls(online_hpstate, + &pp->node_online); + cpuhp_state_remove_instance_nocalls(CPUHP_NET_MVNETA_DEAD, + &pp->node_dead); + on_each_cpu(mvneta_percpu_disable, pp, true); + free_percpu_irq(dev->irq, pp->ports); + } else { + mvneta_stop_dev(pp); + mvneta_mdio_remove(pp); + free_irq(dev->irq, pp); + } + + mvneta_cleanup_rxqs(pp); + mvneta_cleanup_txqs(pp); + + return 0; +} + +static int mvneta_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) +{ + struct mvneta_port *pp = netdev_priv(dev); + + return phylink_mii_ioctl(pp->phylink, ifr, cmd); +} + +static int mvneta_xdp_setup(struct net_device *dev, struct bpf_prog *prog, + struct netlink_ext_ack *extack) +{ + bool need_update, running = netif_running(dev); + struct mvneta_port *pp = netdev_priv(dev); + struct bpf_prog *old_prog; + + if (prog && !prog->aux->xdp_has_frags && + dev->mtu > MVNETA_MAX_RX_BUF_SIZE) { + NL_SET_ERR_MSG_MOD(extack, "prog does not support XDP frags"); + return -EOPNOTSUPP; + } + + if (pp->bm_priv) { + NL_SET_ERR_MSG_MOD(extack, + "Hardware Buffer Management not supported on XDP"); + return -EOPNOTSUPP; + } + + need_update = !!pp->xdp_prog != !!prog; + if (running && need_update) + mvneta_stop(dev); + + old_prog = xchg(&pp->xdp_prog, prog); + if (old_prog) + bpf_prog_put(old_prog); + + if (running && need_update) + return mvneta_open(dev); + + return 0; +} + +static int mvneta_xdp(struct net_device *dev, struct netdev_bpf *xdp) +{ + switch (xdp->command) { + case XDP_SETUP_PROG: + return mvneta_xdp_setup(dev, xdp->prog, xdp->extack); + default: + return -EINVAL; + } +} + +/* Ethtool methods */ + +/* Set link ksettings (phy address, speed) for ethtools */ +static int +mvneta_ethtool_set_link_ksettings(struct net_device *ndev, + const struct ethtool_link_ksettings *cmd) +{ + struct mvneta_port *pp = netdev_priv(ndev); + + return phylink_ethtool_ksettings_set(pp->phylink, cmd); +} + +/* Get link ksettings for ethtools */ +static int +mvneta_ethtool_get_link_ksettings(struct net_device *ndev, + struct ethtool_link_ksettings *cmd) +{ + struct mvneta_port *pp = netdev_priv(ndev); + + return phylink_ethtool_ksettings_get(pp->phylink, cmd); +} + +static int mvneta_ethtool_nway_reset(struct net_device *dev) +{ + struct mvneta_port *pp = netdev_priv(dev); + + return phylink_ethtool_nway_reset(pp->phylink); +} + +/* Set interrupt coalescing for ethtools */ +static int +mvneta_ethtool_set_coalesce(struct net_device *dev, + struct ethtool_coalesce *c, + struct kernel_ethtool_coalesce *kernel_coal, + struct netlink_ext_ack *extack) +{ + struct mvneta_port *pp = netdev_priv(dev); + int queue; + + for (queue = 0; queue < rxq_number; queue++) { + struct mvneta_rx_queue *rxq = &pp->rxqs[queue]; + rxq->time_coal = c->rx_coalesce_usecs; + rxq->pkts_coal = c->rx_max_coalesced_frames; + mvneta_rx_pkts_coal_set(pp, rxq, rxq->pkts_coal); + mvneta_rx_time_coal_set(pp, rxq, rxq->time_coal); + } + + for (queue = 0; queue < txq_number; queue++) { + struct mvneta_tx_queue *txq = &pp->txqs[queue]; + txq->done_pkts_coal = c->tx_max_coalesced_frames; + mvneta_tx_done_pkts_coal_set(pp, txq, txq->done_pkts_coal); + } + + return 0; +} + +/* get coalescing for ethtools */ +static int +mvneta_ethtool_get_coalesce(struct net_device *dev, + struct ethtool_coalesce *c, + struct kernel_ethtool_coalesce *kernel_coal, + struct netlink_ext_ack *extack) +{ + struct mvneta_port *pp = netdev_priv(dev); + + c->rx_coalesce_usecs = pp->rxqs[0].time_coal; + c->rx_max_coalesced_frames = pp->rxqs[0].pkts_coal; + + c->tx_max_coalesced_frames = pp->txqs[0].done_pkts_coal; + return 0; +} + + +static void mvneta_ethtool_get_drvinfo(struct net_device *dev, + struct ethtool_drvinfo *drvinfo) +{ + strscpy(drvinfo->driver, MVNETA_DRIVER_NAME, + sizeof(drvinfo->driver)); + strscpy(drvinfo->version, MVNETA_DRIVER_VERSION, + sizeof(drvinfo->version)); + strscpy(drvinfo->bus_info, dev_name(&dev->dev), + sizeof(drvinfo->bus_info)); +} + + +static void +mvneta_ethtool_get_ringparam(struct net_device *netdev, + struct ethtool_ringparam *ring, + struct kernel_ethtool_ringparam *kernel_ring, + struct netlink_ext_ack *extack) +{ + struct mvneta_port *pp = netdev_priv(netdev); + + ring->rx_max_pending = MVNETA_MAX_RXD; + ring->tx_max_pending = MVNETA_MAX_TXD; + ring->rx_pending = pp->rx_ring_size; + ring->tx_pending = pp->tx_ring_size; +} + +static int +mvneta_ethtool_set_ringparam(struct net_device *dev, + struct ethtool_ringparam *ring, + struct kernel_ethtool_ringparam *kernel_ring, + struct netlink_ext_ack *extack) +{ + struct mvneta_port *pp = netdev_priv(dev); + + if ((ring->rx_pending == 0) || (ring->tx_pending == 0)) + return -EINVAL; + pp->rx_ring_size = ring->rx_pending < MVNETA_MAX_RXD ? + ring->rx_pending : MVNETA_MAX_RXD; + + pp->tx_ring_size = clamp_t(u16, ring->tx_pending, + MVNETA_MAX_SKB_DESCS * 2, MVNETA_MAX_TXD); + if (pp->tx_ring_size != ring->tx_pending) + netdev_warn(dev, "TX queue size set to %u (requested %u)\n", + pp->tx_ring_size, ring->tx_pending); + + if (netif_running(dev)) { + mvneta_stop(dev); + if (mvneta_open(dev)) { + netdev_err(dev, + "error on opening device after ring param change\n"); + return -ENOMEM; + } + } + + return 0; +} + +static void mvneta_ethtool_get_pauseparam(struct net_device *dev, + struct ethtool_pauseparam *pause) +{ + struct mvneta_port *pp = netdev_priv(dev); + + phylink_ethtool_get_pauseparam(pp->phylink, pause); +} + +static int mvneta_ethtool_set_pauseparam(struct net_device *dev, + struct ethtool_pauseparam *pause) +{ + struct mvneta_port *pp = netdev_priv(dev); + + return phylink_ethtool_set_pauseparam(pp->phylink, pause); +} + +static void mvneta_ethtool_get_strings(struct net_device *netdev, u32 sset, + u8 *data) +{ + if (sset == ETH_SS_STATS) { + struct mvneta_port *pp = netdev_priv(netdev); + int i; + + for (i = 0; i < ARRAY_SIZE(mvneta_statistics); i++) + memcpy(data + i * ETH_GSTRING_LEN, + mvneta_statistics[i].name, ETH_GSTRING_LEN); + + if (!pp->bm_priv) { + data += ETH_GSTRING_LEN * ARRAY_SIZE(mvneta_statistics); + page_pool_ethtool_stats_get_strings(data); + } + } +} + +static void +mvneta_ethtool_update_pcpu_stats(struct mvneta_port *pp, + struct mvneta_ethtool_stats *es) +{ + unsigned int start; + int cpu; + + for_each_possible_cpu(cpu) { + struct mvneta_pcpu_stats *stats; + u64 skb_alloc_error; + u64 refill_error; + u64 xdp_redirect; + u64 xdp_xmit_err; + u64 xdp_tx_err; + u64 xdp_pass; + u64 xdp_drop; + u64 xdp_xmit; + u64 xdp_tx; + + stats = per_cpu_ptr(pp->stats, cpu); + do { + start = u64_stats_fetch_begin_irq(&stats->syncp); + skb_alloc_error = stats->es.skb_alloc_error; + refill_error = stats->es.refill_error; + xdp_redirect = stats->es.ps.xdp_redirect; + xdp_pass = stats->es.ps.xdp_pass; + xdp_drop = stats->es.ps.xdp_drop; + xdp_xmit = stats->es.ps.xdp_xmit; + xdp_xmit_err = stats->es.ps.xdp_xmit_err; + xdp_tx = stats->es.ps.xdp_tx; + xdp_tx_err = stats->es.ps.xdp_tx_err; + } while (u64_stats_fetch_retry_irq(&stats->syncp, start)); + + es->skb_alloc_error += skb_alloc_error; + es->refill_error += refill_error; + es->ps.xdp_redirect += xdp_redirect; + es->ps.xdp_pass += xdp_pass; + es->ps.xdp_drop += xdp_drop; + es->ps.xdp_xmit += xdp_xmit; + es->ps.xdp_xmit_err += xdp_xmit_err; + es->ps.xdp_tx += xdp_tx; + es->ps.xdp_tx_err += xdp_tx_err; + } +} + +static void mvneta_ethtool_update_stats(struct mvneta_port *pp) +{ + struct mvneta_ethtool_stats stats = {}; + const struct mvneta_statistic *s; + void __iomem *base = pp->base; + u32 high, low; + u64 val; + int i; + + mvneta_ethtool_update_pcpu_stats(pp, &stats); + for (i = 0, s = mvneta_statistics; + s < mvneta_statistics + ARRAY_SIZE(mvneta_statistics); + s++, i++) { + switch (s->type) { + case T_REG_32: + val = readl_relaxed(base + s->offset); + pp->ethtool_stats[i] += val; + break; + case T_REG_64: + /* Docs say to read low 32-bit then high */ + low = readl_relaxed(base + s->offset); + high = readl_relaxed(base + s->offset + 4); + val = (u64)high << 32 | low; + pp->ethtool_stats[i] += val; + break; + case T_SW: + switch (s->offset) { + case ETHTOOL_STAT_EEE_WAKEUP: + val = phylink_get_eee_err(pp->phylink); + pp->ethtool_stats[i] += val; + break; + case ETHTOOL_STAT_SKB_ALLOC_ERR: + pp->ethtool_stats[i] = stats.skb_alloc_error; + break; + case ETHTOOL_STAT_REFILL_ERR: + pp->ethtool_stats[i] = stats.refill_error; + break; + case ETHTOOL_XDP_REDIRECT: + pp->ethtool_stats[i] = stats.ps.xdp_redirect; + break; + case ETHTOOL_XDP_PASS: + pp->ethtool_stats[i] = stats.ps.xdp_pass; + break; + case ETHTOOL_XDP_DROP: + pp->ethtool_stats[i] = stats.ps.xdp_drop; + break; + case ETHTOOL_XDP_TX: + pp->ethtool_stats[i] = stats.ps.xdp_tx; + break; + case ETHTOOL_XDP_TX_ERR: + pp->ethtool_stats[i] = stats.ps.xdp_tx_err; + break; + case ETHTOOL_XDP_XMIT: + pp->ethtool_stats[i] = stats.ps.xdp_xmit; + break; + case ETHTOOL_XDP_XMIT_ERR: + pp->ethtool_stats[i] = stats.ps.xdp_xmit_err; + break; + } + break; + } + } +} + +static void mvneta_ethtool_pp_stats(struct mvneta_port *pp, u64 *data) +{ + struct page_pool_stats stats = {}; + int i; + + for (i = 0; i < rxq_number; i++) { + if (pp->rxqs[i].page_pool) + page_pool_get_stats(pp->rxqs[i].page_pool, &stats); + } + + page_pool_ethtool_stats_get(data, &stats); +} + +static void mvneta_ethtool_get_stats(struct net_device *dev, + struct ethtool_stats *stats, u64 *data) +{ + struct mvneta_port *pp = netdev_priv(dev); + int i; + + mvneta_ethtool_update_stats(pp); + + for (i = 0; i < ARRAY_SIZE(mvneta_statistics); i++) + *data++ = pp->ethtool_stats[i]; + + if (!pp->bm_priv) + mvneta_ethtool_pp_stats(pp, data); +} + +static int mvneta_ethtool_get_sset_count(struct net_device *dev, int sset) +{ + if (sset == ETH_SS_STATS) { + int count = ARRAY_SIZE(mvneta_statistics); + struct mvneta_port *pp = netdev_priv(dev); + + if (!pp->bm_priv) + count += page_pool_ethtool_stats_get_count(); + + return count; + } + + return -EOPNOTSUPP; +} + +static u32 mvneta_ethtool_get_rxfh_indir_size(struct net_device *dev) +{ + return MVNETA_RSS_LU_TABLE_SIZE; +} + +static int mvneta_ethtool_get_rxnfc(struct net_device *dev, + struct ethtool_rxnfc *info, + u32 *rules __always_unused) +{ + switch (info->cmd) { + case ETHTOOL_GRXRINGS: + info->data = rxq_number; + return 0; + case ETHTOOL_GRXFH: + return -EOPNOTSUPP; + default: + return -EOPNOTSUPP; + } +} + +static int mvneta_config_rss(struct mvneta_port *pp) +{ + int cpu; + u32 val; + + netif_tx_stop_all_queues(pp->dev); + + on_each_cpu(mvneta_percpu_mask_interrupt, pp, true); + + if (!pp->neta_armada3700) { + /* We have to synchronise on the napi of each CPU */ + for_each_online_cpu(cpu) { + struct mvneta_pcpu_port *pcpu_port = + per_cpu_ptr(pp->ports, cpu); + + napi_synchronize(&pcpu_port->napi); + napi_disable(&pcpu_port->napi); + } + } else { + napi_synchronize(&pp->napi); + napi_disable(&pp->napi); + } + + pp->rxq_def = pp->indir[0]; + + /* Update unicast mapping */ + mvneta_set_rx_mode(pp->dev); + + /* Update val of portCfg register accordingly with all RxQueue types */ + val = MVNETA_PORT_CONFIG_DEFL_VALUE(pp->rxq_def); + mvreg_write(pp, MVNETA_PORT_CONFIG, val); + + /* Update the elected CPU matching the new rxq_def */ + spin_lock(&pp->lock); + mvneta_percpu_elect(pp); + spin_unlock(&pp->lock); + + if (!pp->neta_armada3700) { + /* We have to synchronise on the napi of each CPU */ + for_each_online_cpu(cpu) { + struct mvneta_pcpu_port *pcpu_port = + per_cpu_ptr(pp->ports, cpu); + + napi_enable(&pcpu_port->napi); + } + } else { + napi_enable(&pp->napi); + } + + netif_tx_start_all_queues(pp->dev); + + return 0; +} + +static int mvneta_ethtool_set_rxfh(struct net_device *dev, const u32 *indir, + const u8 *key, const u8 hfunc) +{ + struct mvneta_port *pp = netdev_priv(dev); + + /* Current code for Armada 3700 doesn't support RSS features yet */ + if (pp->neta_armada3700) + return -EOPNOTSUPP; + + /* We require at least one supported parameter to be changed + * and no change in any of the unsupported parameters + */ + if (key || + (hfunc != ETH_RSS_HASH_NO_CHANGE && hfunc != ETH_RSS_HASH_TOP)) + return -EOPNOTSUPP; + + if (!indir) + return 0; + + memcpy(pp->indir, indir, MVNETA_RSS_LU_TABLE_SIZE); + + return mvneta_config_rss(pp); +} + +static int mvneta_ethtool_get_rxfh(struct net_device *dev, u32 *indir, u8 *key, + u8 *hfunc) +{ + struct mvneta_port *pp = netdev_priv(dev); + + /* Current code for Armada 3700 doesn't support RSS features yet */ + if (pp->neta_armada3700) + return -EOPNOTSUPP; + + if (hfunc) + *hfunc = ETH_RSS_HASH_TOP; + + if (!indir) + return 0; + + memcpy(indir, pp->indir, MVNETA_RSS_LU_TABLE_SIZE); + + return 0; +} + +static void mvneta_ethtool_get_wol(struct net_device *dev, + struct ethtool_wolinfo *wol) +{ + struct mvneta_port *pp = netdev_priv(dev); + + phylink_ethtool_get_wol(pp->phylink, wol); +} + +static int mvneta_ethtool_set_wol(struct net_device *dev, + struct ethtool_wolinfo *wol) +{ + struct mvneta_port *pp = netdev_priv(dev); + int ret; + + ret = phylink_ethtool_set_wol(pp->phylink, wol); + if (!ret) + device_set_wakeup_enable(&dev->dev, !!wol->wolopts); + + return ret; +} + +static int mvneta_ethtool_get_eee(struct net_device *dev, + struct ethtool_eee *eee) +{ + struct mvneta_port *pp = netdev_priv(dev); + u32 lpi_ctl0; + + lpi_ctl0 = mvreg_read(pp, MVNETA_LPI_CTRL_0); + + eee->eee_enabled = pp->eee_enabled; + eee->eee_active = pp->eee_active; + eee->tx_lpi_enabled = pp->tx_lpi_enabled; + eee->tx_lpi_timer = (lpi_ctl0) >> 8; // * scale; + + return phylink_ethtool_get_eee(pp->phylink, eee); +} + +static int mvneta_ethtool_set_eee(struct net_device *dev, + struct ethtool_eee *eee) +{ + struct mvneta_port *pp = netdev_priv(dev); + u32 lpi_ctl0; + + /* The Armada 37x documents do not give limits for this other than + * it being an 8-bit register. + */ + if (eee->tx_lpi_enabled && eee->tx_lpi_timer > 255) + return -EINVAL; + + lpi_ctl0 = mvreg_read(pp, MVNETA_LPI_CTRL_0); + lpi_ctl0 &= ~(0xff << 8); + lpi_ctl0 |= eee->tx_lpi_timer << 8; + mvreg_write(pp, MVNETA_LPI_CTRL_0, lpi_ctl0); + + pp->eee_enabled = eee->eee_enabled; + pp->tx_lpi_enabled = eee->tx_lpi_enabled; + + mvneta_set_eee(pp, eee->tx_lpi_enabled && eee->eee_enabled); + + return phylink_ethtool_set_eee(pp->phylink, eee); +} + +static void mvneta_clear_rx_prio_map(struct mvneta_port *pp) +{ + mvreg_write(pp, MVNETA_VLAN_PRIO_TO_RXQ, 0); +} + +static void mvneta_map_vlan_prio_to_rxq(struct mvneta_port *pp, u8 pri, u8 rxq) +{ + u32 val = mvreg_read(pp, MVNETA_VLAN_PRIO_TO_RXQ); + + val &= ~MVNETA_VLAN_PRIO_RXQ_MAP(pri, 0x7); + val |= MVNETA_VLAN_PRIO_RXQ_MAP(pri, rxq); + + mvreg_write(pp, MVNETA_VLAN_PRIO_TO_RXQ, val); +} + +static int mvneta_enable_per_queue_rate_limit(struct mvneta_port *pp) +{ + unsigned long core_clk_rate; + u32 refill_cycles; + u32 val; + + core_clk_rate = clk_get_rate(pp->clk); + if (!core_clk_rate) + return -EINVAL; + + refill_cycles = MVNETA_TXQ_BUCKET_REFILL_BASE_PERIOD_NS / + (NSEC_PER_SEC / core_clk_rate); + + if (refill_cycles > MVNETA_REFILL_MAX_NUM_CLK) + return -EINVAL; + + /* Enable bw limit algorithm version 3 */ + val = mvreg_read(pp, MVNETA_TXQ_CMD1_REG); + val &= ~(MVNETA_TXQ_CMD1_BW_LIM_SEL_V1 | MVNETA_TXQ_CMD1_BW_LIM_EN); + mvreg_write(pp, MVNETA_TXQ_CMD1_REG, val); + + /* Set the base refill rate */ + mvreg_write(pp, MVNETA_REFILL_NUM_CLK_REG, refill_cycles); + + return 0; +} + +static void mvneta_disable_per_queue_rate_limit(struct mvneta_port *pp) +{ + u32 val = mvreg_read(pp, MVNETA_TXQ_CMD1_REG); + + val |= (MVNETA_TXQ_CMD1_BW_LIM_SEL_V1 | MVNETA_TXQ_CMD1_BW_LIM_EN); + mvreg_write(pp, MVNETA_TXQ_CMD1_REG, val); +} + +static int mvneta_setup_queue_rates(struct mvneta_port *pp, int queue, + u64 min_rate, u64 max_rate) +{ + u32 refill_val, rem; + u32 val = 0; + + /* Convert to from Bps to bps */ + max_rate *= 8; + + if (min_rate) + return -EINVAL; + + refill_val = div_u64_rem(max_rate, MVNETA_TXQ_RATE_LIMIT_RESOLUTION, + &rem); + + if (rem || !refill_val || + refill_val > MVNETA_TXQ_BUCKET_REFILL_VALUE_MAX) + return -EINVAL; + + val = refill_val; + val |= (MVNETA_TXQ_BUCKET_REFILL_PERIOD << + MVNETA_TXQ_BUCKET_REFILL_PERIOD_SHIFT); + + mvreg_write(pp, MVNETA_TXQ_BUCKET_REFILL_REG(queue), val); + + return 0; +} + +static int mvneta_setup_mqprio(struct net_device *dev, + struct tc_mqprio_qopt_offload *mqprio) +{ + struct mvneta_port *pp = netdev_priv(dev); + int rxq, txq, tc, ret; + u8 num_tc; + + if (mqprio->qopt.hw != TC_MQPRIO_HW_OFFLOAD_TCS) + return 0; + + num_tc = mqprio->qopt.num_tc; + + if (num_tc > rxq_number) + return -EINVAL; + + mvneta_clear_rx_prio_map(pp); + + if (!num_tc) { + mvneta_disable_per_queue_rate_limit(pp); + netdev_reset_tc(dev); + return 0; + } + + netdev_set_num_tc(dev, mqprio->qopt.num_tc); + + for (tc = 0; tc < mqprio->qopt.num_tc; tc++) { + netdev_set_tc_queue(dev, tc, mqprio->qopt.count[tc], + mqprio->qopt.offset[tc]); + + for (rxq = mqprio->qopt.offset[tc]; + rxq < mqprio->qopt.count[tc] + mqprio->qopt.offset[tc]; + rxq++) { + if (rxq >= rxq_number) + return -EINVAL; + + mvneta_map_vlan_prio_to_rxq(pp, tc, rxq); + } + } + + if (mqprio->shaper != TC_MQPRIO_SHAPER_BW_RATE) { + mvneta_disable_per_queue_rate_limit(pp); + return 0; + } + + if (mqprio->qopt.num_tc > txq_number) + return -EINVAL; + + ret = mvneta_enable_per_queue_rate_limit(pp); + if (ret) + return ret; + + for (tc = 0; tc < mqprio->qopt.num_tc; tc++) { + for (txq = mqprio->qopt.offset[tc]; + txq < mqprio->qopt.count[tc] + mqprio->qopt.offset[tc]; + txq++) { + if (txq >= txq_number) + return -EINVAL; + + ret = mvneta_setup_queue_rates(pp, txq, + mqprio->min_rate[tc], + mqprio->max_rate[tc]); + if (ret) + return ret; + } + } + + return 0; +} + +static int mvneta_setup_tc(struct net_device *dev, enum tc_setup_type type, + void *type_data) +{ + switch (type) { + case TC_SETUP_QDISC_MQPRIO: + return mvneta_setup_mqprio(dev, type_data); + default: + return -EOPNOTSUPP; + } +} + +static const struct net_device_ops mvneta_netdev_ops = { + .ndo_open = mvneta_open, + .ndo_stop = mvneta_stop, + .ndo_start_xmit = mvneta_tx, + .ndo_set_rx_mode = mvneta_set_rx_mode, + .ndo_set_mac_address = mvneta_set_mac_addr, + .ndo_change_mtu = mvneta_change_mtu, + .ndo_fix_features = mvneta_fix_features, + .ndo_get_stats64 = mvneta_get_stats64, + .ndo_eth_ioctl = mvneta_ioctl, + .ndo_bpf = mvneta_xdp, + .ndo_xdp_xmit = mvneta_xdp_xmit, + .ndo_setup_tc = mvneta_setup_tc, +}; + +static const struct ethtool_ops mvneta_eth_tool_ops = { + .supported_coalesce_params = ETHTOOL_COALESCE_RX_USECS | + ETHTOOL_COALESCE_MAX_FRAMES, + .nway_reset = mvneta_ethtool_nway_reset, + .get_link = ethtool_op_get_link, + .set_coalesce = mvneta_ethtool_set_coalesce, + .get_coalesce = mvneta_ethtool_get_coalesce, + .get_drvinfo = mvneta_ethtool_get_drvinfo, + .get_ringparam = mvneta_ethtool_get_ringparam, + .set_ringparam = mvneta_ethtool_set_ringparam, + .get_pauseparam = mvneta_ethtool_get_pauseparam, + .set_pauseparam = mvneta_ethtool_set_pauseparam, + .get_strings = mvneta_ethtool_get_strings, + .get_ethtool_stats = mvneta_ethtool_get_stats, + .get_sset_count = mvneta_ethtool_get_sset_count, + .get_rxfh_indir_size = mvneta_ethtool_get_rxfh_indir_size, + .get_rxnfc = mvneta_ethtool_get_rxnfc, + .get_rxfh = mvneta_ethtool_get_rxfh, + .set_rxfh = mvneta_ethtool_set_rxfh, + .get_link_ksettings = mvneta_ethtool_get_link_ksettings, + .set_link_ksettings = mvneta_ethtool_set_link_ksettings, + .get_wol = mvneta_ethtool_get_wol, + .set_wol = mvneta_ethtool_set_wol, + .get_eee = mvneta_ethtool_get_eee, + .set_eee = mvneta_ethtool_set_eee, +}; + +/* Initialize hw */ +static int mvneta_init(struct device *dev, struct mvneta_port *pp) +{ + int queue; + + /* Disable port */ + mvneta_port_disable(pp); + + /* Set port default values */ + mvneta_defaults_set(pp); + + pp->txqs = devm_kcalloc(dev, txq_number, sizeof(*pp->txqs), GFP_KERNEL); + if (!pp->txqs) + return -ENOMEM; + + /* Initialize TX descriptor rings */ + for (queue = 0; queue < txq_number; queue++) { + struct mvneta_tx_queue *txq = &pp->txqs[queue]; + txq->id = queue; + txq->size = pp->tx_ring_size; + txq->done_pkts_coal = MVNETA_TXDONE_COAL_PKTS; + } + + pp->rxqs = devm_kcalloc(dev, rxq_number, sizeof(*pp->rxqs), GFP_KERNEL); + if (!pp->rxqs) + return -ENOMEM; + + /* Create Rx descriptor rings */ + for (queue = 0; queue < rxq_number; queue++) { + struct mvneta_rx_queue *rxq = &pp->rxqs[queue]; + rxq->id = queue; + rxq->size = pp->rx_ring_size; + rxq->pkts_coal = MVNETA_RX_COAL_PKTS; + rxq->time_coal = MVNETA_RX_COAL_USEC; + rxq->buf_virt_addr + = devm_kmalloc_array(pp->dev->dev.parent, + rxq->size, + sizeof(*rxq->buf_virt_addr), + GFP_KERNEL); + if (!rxq->buf_virt_addr) + return -ENOMEM; + } + + return 0; +} + +/* platform glue : initialize decoding windows */ +static void mvneta_conf_mbus_windows(struct mvneta_port *pp, + const struct mbus_dram_target_info *dram) +{ + u32 win_enable; + u32 win_protect; + int i; + + for (i = 0; i < 6; i++) { + mvreg_write(pp, MVNETA_WIN_BASE(i), 0); + mvreg_write(pp, MVNETA_WIN_SIZE(i), 0); + + if (i < 4) + mvreg_write(pp, MVNETA_WIN_REMAP(i), 0); + } + + win_enable = 0x3f; + win_protect = 0; + + if (dram) { + for (i = 0; i < dram->num_cs; i++) { + const struct mbus_dram_window *cs = dram->cs + i; + + mvreg_write(pp, MVNETA_WIN_BASE(i), + (cs->base & 0xffff0000) | + (cs->mbus_attr << 8) | + dram->mbus_dram_target_id); + + mvreg_write(pp, MVNETA_WIN_SIZE(i), + (cs->size - 1) & 0xffff0000); + + win_enable &= ~(1 << i); + win_protect |= 3 << (2 * i); + } + } else { + if (pp->neta_ac5) + mvreg_write(pp, MVNETA_WIN_BASE(0), + (MVNETA_AC5_CNM_DDR_ATTR << 8) | + MVNETA_AC5_CNM_DDR_TARGET); + /* For Armada3700 open default 4GB Mbus window, leaving + * arbitration of target/attribute to a different layer + * of configuration. + */ + mvreg_write(pp, MVNETA_WIN_SIZE(0), 0xffff0000); + win_enable &= ~BIT(0); + win_protect = 3; + } + + mvreg_write(pp, MVNETA_BASE_ADDR_ENABLE, win_enable); + mvreg_write(pp, MVNETA_ACCESS_PROTECT_ENABLE, win_protect); +} + +/* Power up the port */ +static int mvneta_port_power_up(struct mvneta_port *pp, int phy_mode) +{ + /* MAC Cause register should be cleared */ + mvreg_write(pp, MVNETA_UNIT_INTR_CAUSE, 0); + + if (phy_mode != PHY_INTERFACE_MODE_QSGMII && + phy_mode != PHY_INTERFACE_MODE_SGMII && + !phy_interface_mode_is_8023z(phy_mode) && + !phy_interface_mode_is_rgmii(phy_mode)) + return -EINVAL; + + return 0; +} + +/* Device initialization routine */ +static int mvneta_probe(struct platform_device *pdev) +{ + struct device_node *dn = pdev->dev.of_node; + struct device_node *bm_node; + struct mvneta_port *pp; + struct net_device *dev; + struct phylink *phylink; + struct phy *comphy; + char hw_mac_addr[ETH_ALEN]; + phy_interface_t phy_mode; + const char *mac_from; + int tx_csum_limit; + int err; + int cpu; + + dev = devm_alloc_etherdev_mqs(&pdev->dev, sizeof(struct mvneta_port), + txq_number, rxq_number); + if (!dev) + return -ENOMEM; + + dev->tx_queue_len = MVNETA_MAX_TXD; + dev->watchdog_timeo = 5 * HZ; + dev->netdev_ops = &mvneta_netdev_ops; + dev->ethtool_ops = &mvneta_eth_tool_ops; + + pp = netdev_priv(dev); + spin_lock_init(&pp->lock); + pp->dn = dn; + + pp->rxq_def = rxq_def; + pp->indir[0] = rxq_def; + + err = of_get_phy_mode(dn, &phy_mode); + if (err) { + dev_err(&pdev->dev, "incorrect phy-mode\n"); + return err; + } + + pp->phy_interface = phy_mode; + + comphy = devm_of_phy_get(&pdev->dev, dn, NULL); + if (comphy == ERR_PTR(-EPROBE_DEFER)) + return -EPROBE_DEFER; + + if (IS_ERR(comphy)) + comphy = NULL; + + pp->comphy = comphy; + + pp->base = devm_platform_ioremap_resource(pdev, 0); + if (IS_ERR(pp->base)) + return PTR_ERR(pp->base); + + /* Get special SoC configurations */ + if (of_device_is_compatible(dn, "marvell,armada-3700-neta")) + pp->neta_armada3700 = true; + if (of_device_is_compatible(dn, "marvell,armada-ac5-neta")) { + pp->neta_armada3700 = true; + pp->neta_ac5 = true; + } + + dev->irq = irq_of_parse_and_map(dn, 0); + if (dev->irq == 0) + return -EINVAL; + + pp->clk = devm_clk_get(&pdev->dev, "core"); + if (IS_ERR(pp->clk)) + pp->clk = devm_clk_get(&pdev->dev, NULL); + if (IS_ERR(pp->clk)) { + err = PTR_ERR(pp->clk); + goto err_free_irq; + } + + clk_prepare_enable(pp->clk); + + pp->clk_bus = devm_clk_get(&pdev->dev, "bus"); + if (!IS_ERR(pp->clk_bus)) + clk_prepare_enable(pp->clk_bus); + + pp->phylink_pcs.ops = &mvneta_phylink_pcs_ops; + + pp->phylink_config.dev = &dev->dev; + pp->phylink_config.type = PHYLINK_NETDEV; + pp->phylink_config.mac_capabilities = MAC_SYM_PAUSE | MAC_10 | + MAC_100 | MAC_1000FD | MAC_2500FD; + + phy_interface_set_rgmii(pp->phylink_config.supported_interfaces); + __set_bit(PHY_INTERFACE_MODE_QSGMII, + pp->phylink_config.supported_interfaces); + if (comphy) { + /* If a COMPHY is present, we can support any of the serdes + * modes and switch between them. + */ + __set_bit(PHY_INTERFACE_MODE_SGMII, + pp->phylink_config.supported_interfaces); + __set_bit(PHY_INTERFACE_MODE_1000BASEX, + pp->phylink_config.supported_interfaces); + __set_bit(PHY_INTERFACE_MODE_2500BASEX, + pp->phylink_config.supported_interfaces); + } else if (phy_mode == PHY_INTERFACE_MODE_2500BASEX) { + /* No COMPHY, with only 2500BASE-X mode supported */ + __set_bit(PHY_INTERFACE_MODE_2500BASEX, + pp->phylink_config.supported_interfaces); + } else if (phy_mode == PHY_INTERFACE_MODE_1000BASEX || + phy_mode == PHY_INTERFACE_MODE_SGMII) { + /* No COMPHY, we can switch between 1000BASE-X and SGMII */ + __set_bit(PHY_INTERFACE_MODE_1000BASEX, + pp->phylink_config.supported_interfaces); + __set_bit(PHY_INTERFACE_MODE_SGMII, + pp->phylink_config.supported_interfaces); + } + + phylink = phylink_create(&pp->phylink_config, pdev->dev.fwnode, + phy_mode, &mvneta_phylink_ops); + if (IS_ERR(phylink)) { + err = PTR_ERR(phylink); + goto err_clk; + } + + pp->phylink = phylink; + + /* Alloc per-cpu port structure */ + pp->ports = alloc_percpu(struct mvneta_pcpu_port); + if (!pp->ports) { + err = -ENOMEM; + goto err_free_phylink; + } + + /* Alloc per-cpu stats */ + pp->stats = netdev_alloc_pcpu_stats(struct mvneta_pcpu_stats); + if (!pp->stats) { + err = -ENOMEM; + goto err_free_ports; + } + + err = of_get_ethdev_address(dn, dev); + if (!err) { + mac_from = "device tree"; + } else { + mvneta_get_mac_addr(pp, hw_mac_addr); + if (is_valid_ether_addr(hw_mac_addr)) { + mac_from = "hardware"; + eth_hw_addr_set(dev, hw_mac_addr); + } else { + mac_from = "random"; + eth_hw_addr_random(dev); + } + } + + if (!of_property_read_u32(dn, "tx-csum-limit", &tx_csum_limit)) { + if (tx_csum_limit < 0 || + tx_csum_limit > MVNETA_TX_CSUM_MAX_SIZE) { + tx_csum_limit = MVNETA_TX_CSUM_DEF_SIZE; + dev_info(&pdev->dev, + "Wrong TX csum limit in DT, set to %dB\n", + MVNETA_TX_CSUM_DEF_SIZE); + } + } else if (of_device_is_compatible(dn, "marvell,armada-370-neta")) { + tx_csum_limit = MVNETA_TX_CSUM_DEF_SIZE; + } else { + tx_csum_limit = MVNETA_TX_CSUM_MAX_SIZE; + } + + pp->tx_csum_limit = tx_csum_limit; + + pp->dram_target_info = mv_mbus_dram_info(); + /* Armada3700 requires setting default configuration of Mbus + * windows, however without using filled mbus_dram_target_info + * structure. + */ + if (pp->dram_target_info || pp->neta_armada3700) + mvneta_conf_mbus_windows(pp, pp->dram_target_info); + + pp->tx_ring_size = MVNETA_MAX_TXD; + pp->rx_ring_size = MVNETA_MAX_RXD; + + pp->dev = dev; + SET_NETDEV_DEV(dev, &pdev->dev); + + pp->id = global_port_id++; + + /* Obtain access to BM resources if enabled and already initialized */ + bm_node = of_parse_phandle(dn, "buffer-manager", 0); + if (bm_node) { + pp->bm_priv = mvneta_bm_get(bm_node); + if (pp->bm_priv) { + err = mvneta_bm_port_init(pdev, pp); + if (err < 0) { + dev_info(&pdev->dev, + "use SW buffer management\n"); + mvneta_bm_put(pp->bm_priv); + pp->bm_priv = NULL; + } + } + /* Set RX packet offset correction for platforms, whose + * NET_SKB_PAD, exceeds 64B. It should be 64B for 64-bit + * platforms and 0B for 32-bit ones. + */ + pp->rx_offset_correction = max(0, + NET_SKB_PAD - + MVNETA_RX_PKT_OFFSET_CORRECTION); + } + of_node_put(bm_node); + + /* sw buffer management */ + if (!pp->bm_priv) + pp->rx_offset_correction = MVNETA_SKB_HEADROOM; + + err = mvneta_init(&pdev->dev, pp); + if (err < 0) + goto err_netdev; + + err = mvneta_port_power_up(pp, pp->phy_interface); + if (err < 0) { + dev_err(&pdev->dev, "can't power up port\n"); + goto err_netdev; + } + + /* Armada3700 network controller does not support per-cpu + * operation, so only single NAPI should be initialized. + */ + if (pp->neta_armada3700) { + netif_napi_add(dev, &pp->napi, mvneta_poll); + } else { + for_each_present_cpu(cpu) { + struct mvneta_pcpu_port *port = + per_cpu_ptr(pp->ports, cpu); + + netif_napi_add(dev, &port->napi, mvneta_poll); + port->pp = pp; + } + } + + dev->features = NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM | + NETIF_F_TSO | NETIF_F_RXCSUM; + dev->hw_features |= dev->features; + dev->vlan_features |= dev->features; + dev->priv_flags |= IFF_LIVE_ADDR_CHANGE; + netif_set_tso_max_segs(dev, MVNETA_MAX_TSO_SEGS); + + /* MTU range: 68 - 9676 */ + dev->min_mtu = ETH_MIN_MTU; + /* 9676 == 9700 - 20 and rounding to 8 */ + dev->max_mtu = 9676; + + err = register_netdev(dev); + if (err < 0) { + dev_err(&pdev->dev, "failed to register\n"); + goto err_netdev; + } + + netdev_info(dev, "Using %s mac address %pM\n", mac_from, + dev->dev_addr); + + platform_set_drvdata(pdev, pp->dev); + + return 0; + +err_netdev: + if (pp->bm_priv) { + mvneta_bm_pool_destroy(pp->bm_priv, pp->pool_long, 1 << pp->id); + mvneta_bm_pool_destroy(pp->bm_priv, pp->pool_short, + 1 << pp->id); + mvneta_bm_put(pp->bm_priv); + } + free_percpu(pp->stats); +err_free_ports: + free_percpu(pp->ports); +err_free_phylink: + if (pp->phylink) + phylink_destroy(pp->phylink); +err_clk: + clk_disable_unprepare(pp->clk_bus); + clk_disable_unprepare(pp->clk); +err_free_irq: + irq_dispose_mapping(dev->irq); + return err; +} + +/* Device removal routine */ +static int mvneta_remove(struct platform_device *pdev) +{ + struct net_device *dev = platform_get_drvdata(pdev); + struct mvneta_port *pp = netdev_priv(dev); + + unregister_netdev(dev); + clk_disable_unprepare(pp->clk_bus); + clk_disable_unprepare(pp->clk); + free_percpu(pp->ports); + free_percpu(pp->stats); + irq_dispose_mapping(dev->irq); + phylink_destroy(pp->phylink); + + if (pp->bm_priv) { + mvneta_bm_pool_destroy(pp->bm_priv, pp->pool_long, 1 << pp->id); + mvneta_bm_pool_destroy(pp->bm_priv, pp->pool_short, + 1 << pp->id); + mvneta_bm_put(pp->bm_priv); + } + + return 0; +} + +#ifdef CONFIG_PM_SLEEP +static int mvneta_suspend(struct device *device) +{ + int queue; + struct net_device *dev = dev_get_drvdata(device); + struct mvneta_port *pp = netdev_priv(dev); + + if (!netif_running(dev)) + goto clean_exit; + + if (!pp->neta_armada3700) { + spin_lock(&pp->lock); + pp->is_stopped = true; + spin_unlock(&pp->lock); + + cpuhp_state_remove_instance_nocalls(online_hpstate, + &pp->node_online); + cpuhp_state_remove_instance_nocalls(CPUHP_NET_MVNETA_DEAD, + &pp->node_dead); + } + + rtnl_lock(); + mvneta_stop_dev(pp); + rtnl_unlock(); + + for (queue = 0; queue < rxq_number; queue++) { + struct mvneta_rx_queue *rxq = &pp->rxqs[queue]; + + mvneta_rxq_drop_pkts(pp, rxq); + } + + for (queue = 0; queue < txq_number; queue++) { + struct mvneta_tx_queue *txq = &pp->txqs[queue]; + + mvneta_txq_hw_deinit(pp, txq); + } + +clean_exit: + netif_device_detach(dev); + clk_disable_unprepare(pp->clk_bus); + clk_disable_unprepare(pp->clk); + + return 0; +} + +static int mvneta_resume(struct device *device) +{ + struct platform_device *pdev = to_platform_device(device); + struct net_device *dev = dev_get_drvdata(device); + struct mvneta_port *pp = netdev_priv(dev); + int err, queue; + + clk_prepare_enable(pp->clk); + if (!IS_ERR(pp->clk_bus)) + clk_prepare_enable(pp->clk_bus); + if (pp->dram_target_info || pp->neta_armada3700) + mvneta_conf_mbus_windows(pp, pp->dram_target_info); + if (pp->bm_priv) { + err = mvneta_bm_port_init(pdev, pp); + if (err < 0) { + dev_info(&pdev->dev, "use SW buffer management\n"); + pp->rx_offset_correction = MVNETA_SKB_HEADROOM; + pp->bm_priv = NULL; + } + } + mvneta_defaults_set(pp); + err = mvneta_port_power_up(pp, pp->phy_interface); + if (err < 0) { + dev_err(device, "can't power up port\n"); + return err; + } + + netif_device_attach(dev); + + if (!netif_running(dev)) + return 0; + + for (queue = 0; queue < rxq_number; queue++) { + struct mvneta_rx_queue *rxq = &pp->rxqs[queue]; + + rxq->next_desc_to_proc = 0; + mvneta_rxq_hw_init(pp, rxq); + } + + for (queue = 0; queue < txq_number; queue++) { + struct mvneta_tx_queue *txq = &pp->txqs[queue]; + + txq->next_desc_to_proc = 0; + mvneta_txq_hw_init(pp, txq); + } + + if (!pp->neta_armada3700) { + spin_lock(&pp->lock); + pp->is_stopped = false; + spin_unlock(&pp->lock); + cpuhp_state_add_instance_nocalls(online_hpstate, + &pp->node_online); + cpuhp_state_add_instance_nocalls(CPUHP_NET_MVNETA_DEAD, + &pp->node_dead); + } + + rtnl_lock(); + mvneta_start_dev(pp); + rtnl_unlock(); + mvneta_set_rx_mode(dev); + + return 0; +} +#endif + +static SIMPLE_DEV_PM_OPS(mvneta_pm_ops, mvneta_suspend, mvneta_resume); + +static const struct of_device_id mvneta_match[] = { + { .compatible = "marvell,armada-370-neta" }, + { .compatible = "marvell,armada-xp-neta" }, + { .compatible = "marvell,armada-3700-neta" }, + { .compatible = "marvell,armada-ac5-neta" }, + { } +}; +MODULE_DEVICE_TABLE(of, mvneta_match); + +static struct platform_driver mvneta_driver = { + .probe = mvneta_probe, + .remove = mvneta_remove, + .driver = { + .name = MVNETA_DRIVER_NAME, + .of_match_table = mvneta_match, + .pm = &mvneta_pm_ops, + }, +}; + +static int __init mvneta_driver_init(void) +{ + int ret; + + ret = cpuhp_setup_state_multi(CPUHP_AP_ONLINE_DYN, "net/mvneta:online", + mvneta_cpu_online, + mvneta_cpu_down_prepare); + if (ret < 0) + goto out; + online_hpstate = ret; + ret = cpuhp_setup_state_multi(CPUHP_NET_MVNETA_DEAD, "net/mvneta:dead", + NULL, mvneta_cpu_dead); + if (ret) + goto err_dead; + + ret = platform_driver_register(&mvneta_driver); + if (ret) + goto err; + return 0; + +err: + cpuhp_remove_multi_state(CPUHP_NET_MVNETA_DEAD); +err_dead: + cpuhp_remove_multi_state(online_hpstate); +out: + return ret; +} +module_init(mvneta_driver_init); + +static void __exit mvneta_driver_exit(void) +{ + platform_driver_unregister(&mvneta_driver); + cpuhp_remove_multi_state(CPUHP_NET_MVNETA_DEAD); + cpuhp_remove_multi_state(online_hpstate); +} +module_exit(mvneta_driver_exit); + +MODULE_DESCRIPTION("Marvell NETA Ethernet Driver - www.marvell.com"); +MODULE_AUTHOR("Rami Rosen <rosenr@marvell.com>, Thomas Petazzoni <thomas.petazzoni@free-electrons.com>"); +MODULE_LICENSE("GPL"); + +module_param(rxq_number, int, 0444); +module_param(txq_number, int, 0444); + +module_param(rxq_def, int, 0444); +module_param(rx_copybreak, int, 0644); diff --git a/drivers/net/ethernet/marvell/mvneta_bm.c b/drivers/net/ethernet/marvell/mvneta_bm.c new file mode 100644 index 000000000..46c942ef2 --- /dev/null +++ b/drivers/net/ethernet/marvell/mvneta_bm.c @@ -0,0 +1,501 @@ +/* + * Driver for Marvell NETA network controller Buffer Manager. + * + * Copyright (C) 2015 Marvell + * + * Marcin Wojtas <mw@semihalf.com> + * + * This file is licensed under the terms of the GNU General Public + * License version 2. This program is licensed "as is" without any + * warranty of any kind, whether express or implied. + */ + +#include <linux/clk.h> +#include <linux/genalloc.h> +#include <linux/io.h> +#include <linux/kernel.h> +#include <linux/mbus.h> +#include <linux/module.h> +#include <linux/netdevice.h> +#include <linux/of.h> +#include <linux/of_platform.h> +#include <linux/platform_device.h> +#include <linux/skbuff.h> +#include <net/hwbm.h> +#include "mvneta_bm.h" + +#define MVNETA_BM_DRIVER_NAME "mvneta_bm" +#define MVNETA_BM_DRIVER_VERSION "1.0" + +static void mvneta_bm_write(struct mvneta_bm *priv, u32 offset, u32 data) +{ + writel(data, priv->reg_base + offset); +} + +static u32 mvneta_bm_read(struct mvneta_bm *priv, u32 offset) +{ + return readl(priv->reg_base + offset); +} + +static void mvneta_bm_pool_enable(struct mvneta_bm *priv, int pool_id) +{ + u32 val; + + val = mvneta_bm_read(priv, MVNETA_BM_POOL_BASE_REG(pool_id)); + val |= MVNETA_BM_POOL_ENABLE_MASK; + mvneta_bm_write(priv, MVNETA_BM_POOL_BASE_REG(pool_id), val); + + /* Clear BM cause register */ + mvneta_bm_write(priv, MVNETA_BM_INTR_CAUSE_REG, 0); +} + +static void mvneta_bm_pool_disable(struct mvneta_bm *priv, int pool_id) +{ + u32 val; + + val = mvneta_bm_read(priv, MVNETA_BM_POOL_BASE_REG(pool_id)); + val &= ~MVNETA_BM_POOL_ENABLE_MASK; + mvneta_bm_write(priv, MVNETA_BM_POOL_BASE_REG(pool_id), val); +} + +static inline void mvneta_bm_config_set(struct mvneta_bm *priv, u32 mask) +{ + u32 val; + + val = mvneta_bm_read(priv, MVNETA_BM_CONFIG_REG); + val |= mask; + mvneta_bm_write(priv, MVNETA_BM_CONFIG_REG, val); +} + +static inline void mvneta_bm_config_clear(struct mvneta_bm *priv, u32 mask) +{ + u32 val; + + val = mvneta_bm_read(priv, MVNETA_BM_CONFIG_REG); + val &= ~mask; + mvneta_bm_write(priv, MVNETA_BM_CONFIG_REG, val); +} + +static void mvneta_bm_pool_target_set(struct mvneta_bm *priv, int pool_id, + u8 target_id, u8 attr) +{ + u32 val; + + val = mvneta_bm_read(priv, MVNETA_BM_XBAR_POOL_REG(pool_id)); + val &= ~MVNETA_BM_TARGET_ID_MASK(pool_id); + val &= ~MVNETA_BM_XBAR_ATTR_MASK(pool_id); + val |= MVNETA_BM_TARGET_ID_VAL(pool_id, target_id); + val |= MVNETA_BM_XBAR_ATTR_VAL(pool_id, attr); + + mvneta_bm_write(priv, MVNETA_BM_XBAR_POOL_REG(pool_id), val); +} + +int mvneta_bm_construct(struct hwbm_pool *hwbm_pool, void *buf) +{ + struct mvneta_bm_pool *bm_pool = + (struct mvneta_bm_pool *)hwbm_pool->priv; + struct mvneta_bm *priv = bm_pool->priv; + dma_addr_t phys_addr; + + /* In order to update buf_cookie field of RX descriptor properly, + * BM hardware expects buf virtual address to be placed in the + * first four bytes of mapped buffer. + */ + *(u32 *)buf = (u32)buf; + phys_addr = dma_map_single(&priv->pdev->dev, buf, bm_pool->buf_size, + DMA_FROM_DEVICE); + if (unlikely(dma_mapping_error(&priv->pdev->dev, phys_addr))) + return -ENOMEM; + + mvneta_bm_pool_put_bp(priv, bm_pool, phys_addr); + return 0; +} +EXPORT_SYMBOL_GPL(mvneta_bm_construct); + +/* Create pool */ +static int mvneta_bm_pool_create(struct mvneta_bm *priv, + struct mvneta_bm_pool *bm_pool) +{ + struct platform_device *pdev = priv->pdev; + u8 target_id, attr; + int size_bytes, err; + size_bytes = sizeof(u32) * bm_pool->hwbm_pool.size; + bm_pool->virt_addr = dma_alloc_coherent(&pdev->dev, size_bytes, + &bm_pool->phys_addr, + GFP_KERNEL); + if (!bm_pool->virt_addr) + return -ENOMEM; + + if (!IS_ALIGNED((u32)bm_pool->virt_addr, MVNETA_BM_POOL_PTR_ALIGN)) { + dma_free_coherent(&pdev->dev, size_bytes, bm_pool->virt_addr, + bm_pool->phys_addr); + dev_err(&pdev->dev, "BM pool %d is not %d bytes aligned\n", + bm_pool->id, MVNETA_BM_POOL_PTR_ALIGN); + return -ENOMEM; + } + + err = mvebu_mbus_get_dram_win_info(bm_pool->phys_addr, &target_id, + &attr); + if (err < 0) { + dma_free_coherent(&pdev->dev, size_bytes, bm_pool->virt_addr, + bm_pool->phys_addr); + return err; + } + + /* Set pool address */ + mvneta_bm_write(priv, MVNETA_BM_POOL_BASE_REG(bm_pool->id), + bm_pool->phys_addr); + + mvneta_bm_pool_target_set(priv, bm_pool->id, target_id, attr); + mvneta_bm_pool_enable(priv, bm_pool->id); + + return 0; +} + +/* Notify the driver that BM pool is being used as specific type and return the + * pool pointer on success + */ +struct mvneta_bm_pool *mvneta_bm_pool_use(struct mvneta_bm *priv, u8 pool_id, + enum mvneta_bm_type type, u8 port_id, + int pkt_size) +{ + struct mvneta_bm_pool *new_pool = &priv->bm_pools[pool_id]; + int num, err; + + if (new_pool->type == MVNETA_BM_LONG && + new_pool->port_map != 1 << port_id) { + dev_err(&priv->pdev->dev, + "long pool cannot be shared by the ports\n"); + return NULL; + } + + if (new_pool->type == MVNETA_BM_SHORT && new_pool->type != type) { + dev_err(&priv->pdev->dev, + "mixing pools' types between the ports is forbidden\n"); + return NULL; + } + + if (new_pool->pkt_size == 0 || type != MVNETA_BM_SHORT) + new_pool->pkt_size = pkt_size; + + /* Allocate buffers in case BM pool hasn't been used yet */ + if (new_pool->type == MVNETA_BM_FREE) { + struct hwbm_pool *hwbm_pool = &new_pool->hwbm_pool; + + new_pool->priv = priv; + new_pool->type = type; + new_pool->buf_size = MVNETA_RX_BUF_SIZE(new_pool->pkt_size); + hwbm_pool->frag_size = + SKB_DATA_ALIGN(MVNETA_RX_BUF_SIZE(new_pool->pkt_size)) + + SKB_DATA_ALIGN(sizeof(struct skb_shared_info)); + hwbm_pool->construct = mvneta_bm_construct; + hwbm_pool->priv = new_pool; + mutex_init(&hwbm_pool->buf_lock); + + /* Create new pool */ + err = mvneta_bm_pool_create(priv, new_pool); + if (err) { + dev_err(&priv->pdev->dev, "fail to create pool %d\n", + new_pool->id); + return NULL; + } + + /* Allocate buffers for this pool */ + num = hwbm_pool_add(hwbm_pool, hwbm_pool->size); + if (num != hwbm_pool->size) { + WARN(1, "pool %d: %d of %d allocated\n", + new_pool->id, num, hwbm_pool->size); + return NULL; + } + } + + return new_pool; +} +EXPORT_SYMBOL_GPL(mvneta_bm_pool_use); + +/* Free all buffers from the pool */ +void mvneta_bm_bufs_free(struct mvneta_bm *priv, struct mvneta_bm_pool *bm_pool, + u8 port_map) +{ + int i; + + bm_pool->port_map &= ~port_map; + if (bm_pool->port_map) + return; + + mvneta_bm_config_set(priv, MVNETA_BM_EMPTY_LIMIT_MASK); + + for (i = 0; i < bm_pool->hwbm_pool.buf_num; i++) { + dma_addr_t buf_phys_addr; + u32 *vaddr; + + /* Get buffer physical address (indirect access) */ + buf_phys_addr = mvneta_bm_pool_get_bp(priv, bm_pool); + + /* Work-around to the problems when destroying the pool, + * when it occurs that a read access to BPPI returns 0. + */ + if (buf_phys_addr == 0) + continue; + + vaddr = phys_to_virt(buf_phys_addr); + if (!vaddr) + break; + + dma_unmap_single(&priv->pdev->dev, buf_phys_addr, + bm_pool->buf_size, DMA_FROM_DEVICE); + hwbm_buf_free(&bm_pool->hwbm_pool, vaddr); + } + + mvneta_bm_config_clear(priv, MVNETA_BM_EMPTY_LIMIT_MASK); + + /* Update BM driver with number of buffers removed from pool */ + bm_pool->hwbm_pool.buf_num -= i; +} +EXPORT_SYMBOL_GPL(mvneta_bm_bufs_free); + +/* Cleanup pool */ +void mvneta_bm_pool_destroy(struct mvneta_bm *priv, + struct mvneta_bm_pool *bm_pool, u8 port_map) +{ + struct hwbm_pool *hwbm_pool = &bm_pool->hwbm_pool; + bm_pool->port_map &= ~port_map; + if (bm_pool->port_map) + return; + + bm_pool->type = MVNETA_BM_FREE; + + mvneta_bm_bufs_free(priv, bm_pool, port_map); + if (hwbm_pool->buf_num) + WARN(1, "cannot free all buffers in pool %d\n", bm_pool->id); + + if (bm_pool->virt_addr) { + dma_free_coherent(&priv->pdev->dev, + sizeof(u32) * hwbm_pool->size, + bm_pool->virt_addr, bm_pool->phys_addr); + bm_pool->virt_addr = NULL; + } + + mvneta_bm_pool_disable(priv, bm_pool->id); +} +EXPORT_SYMBOL_GPL(mvneta_bm_pool_destroy); + +static void mvneta_bm_pools_init(struct mvneta_bm *priv) +{ + struct device_node *dn = priv->pdev->dev.of_node; + struct mvneta_bm_pool *bm_pool; + char prop[15]; + u32 size; + int i; + + /* Activate BM unit */ + mvneta_bm_write(priv, MVNETA_BM_COMMAND_REG, MVNETA_BM_START_MASK); + + /* Create all pools with maximum size */ + for (i = 0; i < MVNETA_BM_POOLS_NUM; i++) { + bm_pool = &priv->bm_pools[i]; + bm_pool->id = i; + bm_pool->type = MVNETA_BM_FREE; + + /* Reset read pointer */ + mvneta_bm_write(priv, MVNETA_BM_POOL_READ_PTR_REG(i), 0); + + /* Reset write pointer */ + mvneta_bm_write(priv, MVNETA_BM_POOL_WRITE_PTR_REG(i), 0); + + /* Configure pool size according to DT or use default value */ + sprintf(prop, "pool%d,capacity", i); + if (of_property_read_u32(dn, prop, &size)) { + size = MVNETA_BM_POOL_CAP_DEF; + } else if (size > MVNETA_BM_POOL_CAP_MAX) { + dev_warn(&priv->pdev->dev, + "Illegal pool %d capacity %d, set to %d\n", + i, size, MVNETA_BM_POOL_CAP_MAX); + size = MVNETA_BM_POOL_CAP_MAX; + } else if (size < MVNETA_BM_POOL_CAP_MIN) { + dev_warn(&priv->pdev->dev, + "Illegal pool %d capacity %d, set to %d\n", + i, size, MVNETA_BM_POOL_CAP_MIN); + size = MVNETA_BM_POOL_CAP_MIN; + } else if (!IS_ALIGNED(size, MVNETA_BM_POOL_CAP_ALIGN)) { + dev_warn(&priv->pdev->dev, + "Illegal pool %d capacity %d, round to %d\n", + i, size, ALIGN(size, + MVNETA_BM_POOL_CAP_ALIGN)); + size = ALIGN(size, MVNETA_BM_POOL_CAP_ALIGN); + } + bm_pool->hwbm_pool.size = size; + + mvneta_bm_write(priv, MVNETA_BM_POOL_SIZE_REG(i), + bm_pool->hwbm_pool.size); + + /* Obtain custom pkt_size from DT */ + sprintf(prop, "pool%d,pkt-size", i); + if (of_property_read_u32(dn, prop, &bm_pool->pkt_size)) + bm_pool->pkt_size = 0; + } +} + +static void mvneta_bm_default_set(struct mvneta_bm *priv) +{ + u32 val; + + /* Mask BM all interrupts */ + mvneta_bm_write(priv, MVNETA_BM_INTR_MASK_REG, 0); + + /* Clear BM cause register */ + mvneta_bm_write(priv, MVNETA_BM_INTR_CAUSE_REG, 0); + + /* Set BM configuration register */ + val = mvneta_bm_read(priv, MVNETA_BM_CONFIG_REG); + + /* Reduce MaxInBurstSize from 32 BPs to 16 BPs */ + val &= ~MVNETA_BM_MAX_IN_BURST_SIZE_MASK; + val |= MVNETA_BM_MAX_IN_BURST_SIZE_16BP; + mvneta_bm_write(priv, MVNETA_BM_CONFIG_REG, val); +} + +static int mvneta_bm_init(struct mvneta_bm *priv) +{ + mvneta_bm_default_set(priv); + + /* Allocate and initialize BM pools structures */ + priv->bm_pools = devm_kcalloc(&priv->pdev->dev, MVNETA_BM_POOLS_NUM, + sizeof(struct mvneta_bm_pool), + GFP_KERNEL); + if (!priv->bm_pools) + return -ENOMEM; + + mvneta_bm_pools_init(priv); + + return 0; +} + +static int mvneta_bm_get_sram(struct device_node *dn, + struct mvneta_bm *priv) +{ + priv->bppi_pool = of_gen_pool_get(dn, "internal-mem", 0); + if (!priv->bppi_pool) + return -ENOMEM; + + priv->bppi_virt_addr = gen_pool_dma_alloc(priv->bppi_pool, + MVNETA_BM_BPPI_SIZE, + &priv->bppi_phys_addr); + if (!priv->bppi_virt_addr) + return -ENOMEM; + + return 0; +} + +static void mvneta_bm_put_sram(struct mvneta_bm *priv) +{ + gen_pool_free(priv->bppi_pool, priv->bppi_phys_addr, + MVNETA_BM_BPPI_SIZE); +} + +struct mvneta_bm *mvneta_bm_get(struct device_node *node) +{ + struct platform_device *pdev = of_find_device_by_node(node); + + return pdev ? platform_get_drvdata(pdev) : NULL; +} +EXPORT_SYMBOL_GPL(mvneta_bm_get); + +void mvneta_bm_put(struct mvneta_bm *priv) +{ + platform_device_put(priv->pdev); +} +EXPORT_SYMBOL_GPL(mvneta_bm_put); + +static int mvneta_bm_probe(struct platform_device *pdev) +{ + struct device_node *dn = pdev->dev.of_node; + struct mvneta_bm *priv; + int err; + + priv = devm_kzalloc(&pdev->dev, sizeof(struct mvneta_bm), GFP_KERNEL); + if (!priv) + return -ENOMEM; + + priv->reg_base = devm_platform_ioremap_resource(pdev, 0); + if (IS_ERR(priv->reg_base)) + return PTR_ERR(priv->reg_base); + + priv->clk = devm_clk_get(&pdev->dev, NULL); + if (IS_ERR(priv->clk)) + return PTR_ERR(priv->clk); + err = clk_prepare_enable(priv->clk); + if (err < 0) + return err; + + err = mvneta_bm_get_sram(dn, priv); + if (err < 0) { + dev_err(&pdev->dev, "failed to allocate internal memory\n"); + goto err_clk; + } + + priv->pdev = pdev; + + /* Initialize buffer manager internals */ + err = mvneta_bm_init(priv); + if (err < 0) { + dev_err(&pdev->dev, "failed to initialize controller\n"); + goto err_sram; + } + + dn->data = priv; + platform_set_drvdata(pdev, priv); + + dev_info(&pdev->dev, "Buffer Manager for network controller enabled\n"); + + return 0; + +err_sram: + mvneta_bm_put_sram(priv); +err_clk: + clk_disable_unprepare(priv->clk); + return err; +} + +static int mvneta_bm_remove(struct platform_device *pdev) +{ + struct mvneta_bm *priv = platform_get_drvdata(pdev); + u8 all_ports_map = 0xff; + int i = 0; + + for (i = 0; i < MVNETA_BM_POOLS_NUM; i++) { + struct mvneta_bm_pool *bm_pool = &priv->bm_pools[i]; + + mvneta_bm_pool_destroy(priv, bm_pool, all_ports_map); + } + + mvneta_bm_put_sram(priv); + + /* Dectivate BM unit */ + mvneta_bm_write(priv, MVNETA_BM_COMMAND_REG, MVNETA_BM_STOP_MASK); + + clk_disable_unprepare(priv->clk); + + return 0; +} + +static const struct of_device_id mvneta_bm_match[] = { + { .compatible = "marvell,armada-380-neta-bm" }, + { } +}; +MODULE_DEVICE_TABLE(of, mvneta_bm_match); + +static struct platform_driver mvneta_bm_driver = { + .probe = mvneta_bm_probe, + .remove = mvneta_bm_remove, + .driver = { + .name = MVNETA_BM_DRIVER_NAME, + .of_match_table = mvneta_bm_match, + }, +}; + +module_platform_driver(mvneta_bm_driver); + +MODULE_DESCRIPTION("Marvell NETA Buffer Manager Driver - www.marvell.com"); +MODULE_AUTHOR("Marcin Wojtas <mw@semihalf.com>"); +MODULE_LICENSE("GPL v2"); diff --git a/drivers/net/ethernet/marvell/mvneta_bm.h b/drivers/net/ethernet/marvell/mvneta_bm.h new file mode 100644 index 000000000..e47783ce7 --- /dev/null +++ b/drivers/net/ethernet/marvell/mvneta_bm.h @@ -0,0 +1,192 @@ +/* + * Driver for Marvell NETA network controller Buffer Manager. + * + * Copyright (C) 2015 Marvell + * + * Marcin Wojtas <mw@semihalf.com> + * + * This file is licensed under the terms of the GNU General Public + * License version 2. This program is licensed "as is" without any + * warranty of any kind, whether express or implied. + */ + +#ifndef _MVNETA_BM_H_ +#define _MVNETA_BM_H_ + +/* BM Configuration Register */ +#define MVNETA_BM_CONFIG_REG 0x0 +#define MVNETA_BM_STATUS_MASK 0x30 +#define MVNETA_BM_ACTIVE_MASK BIT(4) +#define MVNETA_BM_MAX_IN_BURST_SIZE_MASK 0x60000 +#define MVNETA_BM_MAX_IN_BURST_SIZE_16BP BIT(18) +#define MVNETA_BM_EMPTY_LIMIT_MASK BIT(19) + +/* BM Activation Register */ +#define MVNETA_BM_COMMAND_REG 0x4 +#define MVNETA_BM_START_MASK BIT(0) +#define MVNETA_BM_STOP_MASK BIT(1) +#define MVNETA_BM_PAUSE_MASK BIT(2) + +/* BM Xbar interface Register */ +#define MVNETA_BM_XBAR_01_REG 0x8 +#define MVNETA_BM_XBAR_23_REG 0xc +#define MVNETA_BM_XBAR_POOL_REG(pool) \ + (((pool) < 2) ? MVNETA_BM_XBAR_01_REG : MVNETA_BM_XBAR_23_REG) +#define MVNETA_BM_TARGET_ID_OFFS(pool) (((pool) & 1) ? 16 : 0) +#define MVNETA_BM_TARGET_ID_MASK(pool) \ + (0xf << MVNETA_BM_TARGET_ID_OFFS(pool)) +#define MVNETA_BM_TARGET_ID_VAL(pool, id) \ + ((id) << MVNETA_BM_TARGET_ID_OFFS(pool)) +#define MVNETA_BM_XBAR_ATTR_OFFS(pool) (((pool) & 1) ? 20 : 4) +#define MVNETA_BM_XBAR_ATTR_MASK(pool) \ + (0xff << MVNETA_BM_XBAR_ATTR_OFFS(pool)) +#define MVNETA_BM_XBAR_ATTR_VAL(pool, attr) \ + ((attr) << MVNETA_BM_XBAR_ATTR_OFFS(pool)) + +/* Address of External Buffer Pointers Pool Register */ +#define MVNETA_BM_POOL_BASE_REG(pool) (0x10 + ((pool) << 4)) +#define MVNETA_BM_POOL_ENABLE_MASK BIT(0) + +/* External Buffer Pointers Pool RD pointer Register */ +#define MVNETA_BM_POOL_READ_PTR_REG(pool) (0x14 + ((pool) << 4)) +#define MVNETA_BM_POOL_SET_READ_PTR_MASK 0xfffc +#define MVNETA_BM_POOL_GET_READ_PTR_OFFS 16 +#define MVNETA_BM_POOL_GET_READ_PTR_MASK 0xfffc0000 + +/* External Buffer Pointers Pool WR pointer */ +#define MVNETA_BM_POOL_WRITE_PTR_REG(pool) (0x18 + ((pool) << 4)) +#define MVNETA_BM_POOL_SET_WRITE_PTR_OFFS 0 +#define MVNETA_BM_POOL_SET_WRITE_PTR_MASK 0xfffc +#define MVNETA_BM_POOL_GET_WRITE_PTR_OFFS 16 +#define MVNETA_BM_POOL_GET_WRITE_PTR_MASK 0xfffc0000 + +/* External Buffer Pointers Pool Size Register */ +#define MVNETA_BM_POOL_SIZE_REG(pool) (0x1c + ((pool) << 4)) +#define MVNETA_BM_POOL_SIZE_MASK 0x3fff + +/* BM Interrupt Cause Register */ +#define MVNETA_BM_INTR_CAUSE_REG (0x50) + +/* BM interrupt Mask Register */ +#define MVNETA_BM_INTR_MASK_REG (0x54) + +/* Other definitions */ +#define MVNETA_BM_SHORT_PKT_SIZE 256 +#define MVNETA_BM_POOLS_NUM 4 +#define MVNETA_BM_POOL_CAP_MIN 128 +#define MVNETA_BM_POOL_CAP_DEF 2048 +#define MVNETA_BM_POOL_CAP_MAX \ + (16 * 1024 - MVNETA_BM_POOL_CAP_ALIGN) +#define MVNETA_BM_POOL_CAP_ALIGN 32 +#define MVNETA_BM_POOL_PTR_ALIGN 32 + +#define MVNETA_BM_POOL_ACCESS_OFFS 8 + +#define MVNETA_BM_BPPI_SIZE 0x100000 + +#define MVNETA_RX_BUF_SIZE(pkt_size) ((pkt_size) + NET_SKB_PAD) + +enum mvneta_bm_type { + MVNETA_BM_FREE, + MVNETA_BM_LONG, + MVNETA_BM_SHORT +}; + +struct mvneta_bm { + void __iomem *reg_base; + struct clk *clk; + struct platform_device *pdev; + + struct gen_pool *bppi_pool; + /* BPPI virtual base address */ + void __iomem *bppi_virt_addr; + /* BPPI physical base address */ + dma_addr_t bppi_phys_addr; + + /* BM pools */ + struct mvneta_bm_pool *bm_pools; +}; + +struct mvneta_bm_pool { + struct hwbm_pool hwbm_pool; + /* Pool number in the range 0-3 */ + u8 id; + enum mvneta_bm_type type; + + /* Packet size */ + int pkt_size; + /* Size of the buffer acces through DMA*/ + u32 buf_size; + + /* BPPE virtual base address */ + u32 *virt_addr; + /* BPPE physical base address */ + dma_addr_t phys_addr; + + /* Ports using BM pool */ + u8 port_map; + + struct mvneta_bm *priv; +}; + +/* Declarations and definitions */ +#if IS_ENABLED(CONFIG_MVNETA_BM) +struct mvneta_bm *mvneta_bm_get(struct device_node *node); +void mvneta_bm_put(struct mvneta_bm *priv); + +void mvneta_bm_pool_destroy(struct mvneta_bm *priv, + struct mvneta_bm_pool *bm_pool, u8 port_map); +void mvneta_bm_bufs_free(struct mvneta_bm *priv, struct mvneta_bm_pool *bm_pool, + u8 port_map); +int mvneta_bm_construct(struct hwbm_pool *hwbm_pool, void *buf); +int mvneta_bm_pool_refill(struct mvneta_bm *priv, + struct mvneta_bm_pool *bm_pool); +struct mvneta_bm_pool *mvneta_bm_pool_use(struct mvneta_bm *priv, u8 pool_id, + enum mvneta_bm_type type, u8 port_id, + int pkt_size); + +static inline void mvneta_bm_pool_put_bp(struct mvneta_bm *priv, + struct mvneta_bm_pool *bm_pool, + dma_addr_t buf_phys_addr) +{ + writel_relaxed(buf_phys_addr, priv->bppi_virt_addr + + (bm_pool->id << MVNETA_BM_POOL_ACCESS_OFFS)); +} + +static inline u32 mvneta_bm_pool_get_bp(struct mvneta_bm *priv, + struct mvneta_bm_pool *bm_pool) +{ + return readl_relaxed(priv->bppi_virt_addr + + (bm_pool->id << MVNETA_BM_POOL_ACCESS_OFFS)); +} +#else +static inline void mvneta_bm_pool_destroy(struct mvneta_bm *priv, + struct mvneta_bm_pool *bm_pool, + u8 port_map) {} +static inline void mvneta_bm_bufs_free(struct mvneta_bm *priv, + struct mvneta_bm_pool *bm_pool, + u8 port_map) {} +static inline int mvneta_bm_construct(struct hwbm_pool *hwbm_pool, void *buf) +{ return 0; } +static inline int mvneta_bm_pool_refill(struct mvneta_bm *priv, + struct mvneta_bm_pool *bm_pool) +{ return 0; } +static inline struct mvneta_bm_pool *mvneta_bm_pool_use(struct mvneta_bm *priv, + u8 pool_id, + enum mvneta_bm_type type, + u8 port_id, + int pkt_size) +{ return NULL; } + +static inline void mvneta_bm_pool_put_bp(struct mvneta_bm *priv, + struct mvneta_bm_pool *bm_pool, + dma_addr_t buf_phys_addr) {} + +static inline u32 mvneta_bm_pool_get_bp(struct mvneta_bm *priv, + struct mvneta_bm_pool *bm_pool) +{ return 0; } +static inline struct mvneta_bm *mvneta_bm_get(struct device_node *node) +{ return NULL; } +static inline void mvneta_bm_put(struct mvneta_bm *priv) {} +#endif /* CONFIG_MVNETA_BM */ +#endif diff --git a/drivers/net/ethernet/marvell/mvpp2/Makefile b/drivers/net/ethernet/marvell/mvpp2/Makefile new file mode 100644 index 000000000..9bd8e7964 --- /dev/null +++ b/drivers/net/ethernet/marvell/mvpp2/Makefile @@ -0,0 +1,8 @@ +# SPDX-License-Identifier: GPL-2.0 +# +# Makefile for the Marvell PPv2 driver. +# +obj-$(CONFIG_MVPP2) := mvpp2.o + +mvpp2-y := mvpp2_main.o mvpp2_prs.o mvpp2_cls.o mvpp2_debugfs.o +mvpp2-$(CONFIG_MVPP2_PTP) += mvpp2_tai.o diff --git a/drivers/net/ethernet/marvell/mvpp2/mvpp2.h b/drivers/net/ethernet/marvell/mvpp2/mvpp2.h new file mode 100644 index 000000000..11e603686 --- /dev/null +++ b/drivers/net/ethernet/marvell/mvpp2/mvpp2.h @@ -0,0 +1,1570 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * Definitions for Marvell PPv2 network controller for Armada 375 SoC. + * + * Copyright (C) 2014 Marvell + * + * Marcin Wojtas <mw@semihalf.com> + */ +#ifndef _MVPP2_H_ +#define _MVPP2_H_ + +#include <linux/interrupt.h> +#include <linux/kernel.h> +#include <linux/netdevice.h> +#include <linux/net_tstamp.h> +#include <linux/phy.h> +#include <linux/phylink.h> +#include <net/flow_offload.h> +#include <net/page_pool.h> +#include <linux/bpf.h> +#include <net/xdp.h> + +/* The PacketOffset field is measured in units of 32 bytes and is 3 bits wide, + * so the maximum offset is 7 * 32 = 224 + */ +#define MVPP2_SKB_HEADROOM min(max(XDP_PACKET_HEADROOM, NET_SKB_PAD), 224) + +#define MVPP2_XDP_PASS 0 +#define MVPP2_XDP_DROPPED BIT(0) +#define MVPP2_XDP_TX BIT(1) +#define MVPP2_XDP_REDIR BIT(2) + +/* Fifo Registers */ +#define MVPP2_RX_DATA_FIFO_SIZE_REG(port) (0x00 + 4 * (port)) +#define MVPP2_RX_ATTR_FIFO_SIZE_REG(port) (0x20 + 4 * (port)) +#define MVPP2_RX_MIN_PKT_SIZE_REG 0x60 +#define MVPP2_RX_FIFO_INIT_REG 0x64 +#define MVPP22_TX_FIFO_THRESH_REG(port) (0x8840 + 4 * (port)) +#define MVPP22_TX_FIFO_SIZE_REG(port) (0x8860 + 4 * (port)) + +/* RX DMA Top Registers */ +#define MVPP2_RX_CTRL_REG(port) (0x140 + 4 * (port)) +#define MVPP2_RX_LOW_LATENCY_PKT_SIZE(s) (((s) & 0xfff) << 16) +#define MVPP2_RX_USE_PSEUDO_FOR_CSUM_MASK BIT(31) +#define MVPP2_POOL_BUF_SIZE_REG(pool) (0x180 + 4 * (pool)) +#define MVPP2_POOL_BUF_SIZE_OFFSET 5 +#define MVPP2_RXQ_CONFIG_REG(rxq) (0x800 + 4 * (rxq)) +#define MVPP2_SNOOP_PKT_SIZE_MASK 0x1ff +#define MVPP2_SNOOP_BUF_HDR_MASK BIT(9) +#define MVPP2_RXQ_POOL_SHORT_OFFS 20 +#define MVPP21_RXQ_POOL_SHORT_MASK 0x700000 +#define MVPP22_RXQ_POOL_SHORT_MASK 0xf00000 +#define MVPP2_RXQ_POOL_LONG_OFFS 24 +#define MVPP21_RXQ_POOL_LONG_MASK 0x7000000 +#define MVPP22_RXQ_POOL_LONG_MASK 0xf000000 +#define MVPP2_RXQ_PACKET_OFFSET_OFFS 28 +#define MVPP2_RXQ_PACKET_OFFSET_MASK 0x70000000 +#define MVPP2_RXQ_DISABLE_MASK BIT(31) + +/* Top Registers */ +#define MVPP2_MH_REG(port) (0x5040 + 4 * (port)) +#define MVPP2_DSA_EXTENDED BIT(5) +#define MVPP2_VER_ID_REG 0x50b0 +#define MVPP2_VER_PP22 0x10 +#define MVPP2_VER_PP23 0x11 + +/* Parser Registers */ +#define MVPP2_PRS_INIT_LOOKUP_REG 0x1000 +#define MVPP2_PRS_PORT_LU_MAX 0xf +#define MVPP2_PRS_PORT_LU_MASK(port) (0xff << ((port) * 4)) +#define MVPP2_PRS_PORT_LU_VAL(port, val) ((val) << ((port) * 4)) +#define MVPP2_PRS_INIT_OFFS_REG(port) (0x1004 + ((port) & 4)) +#define MVPP2_PRS_INIT_OFF_MASK(port) (0x3f << (((port) % 4) * 8)) +#define MVPP2_PRS_INIT_OFF_VAL(port, val) ((val) << (((port) % 4) * 8)) +#define MVPP2_PRS_MAX_LOOP_REG(port) (0x100c + ((port) & 4)) +#define MVPP2_PRS_MAX_LOOP_MASK(port) (0xff << (((port) % 4) * 8)) +#define MVPP2_PRS_MAX_LOOP_VAL(port, val) ((val) << (((port) % 4) * 8)) +#define MVPP2_PRS_TCAM_IDX_REG 0x1100 +#define MVPP2_PRS_TCAM_DATA_REG(idx) (0x1104 + (idx) * 4) +#define MVPP2_PRS_TCAM_INV_MASK BIT(31) +#define MVPP2_PRS_SRAM_IDX_REG 0x1200 +#define MVPP2_PRS_SRAM_DATA_REG(idx) (0x1204 + (idx) * 4) +#define MVPP2_PRS_TCAM_CTRL_REG 0x1230 +#define MVPP2_PRS_TCAM_EN_MASK BIT(0) +#define MVPP2_PRS_TCAM_HIT_IDX_REG 0x1240 +#define MVPP2_PRS_TCAM_HIT_CNT_REG 0x1244 +#define MVPP2_PRS_TCAM_HIT_CNT_MASK GENMASK(15, 0) + +/* RSS Registers */ +#define MVPP22_RSS_INDEX 0x1500 +#define MVPP22_RSS_INDEX_TABLE_ENTRY(idx) (idx) +#define MVPP22_RSS_INDEX_TABLE(idx) ((idx) << 8) +#define MVPP22_RSS_INDEX_QUEUE(idx) ((idx) << 16) +#define MVPP22_RXQ2RSS_TABLE 0x1504 +#define MVPP22_RSS_TABLE_POINTER(p) (p) +#define MVPP22_RSS_TABLE_ENTRY 0x1508 +#define MVPP22_RSS_WIDTH 0x150c + +/* Classifier Registers */ +#define MVPP2_CLS_MODE_REG 0x1800 +#define MVPP2_CLS_MODE_ACTIVE_MASK BIT(0) +#define MVPP2_CLS_PORT_WAY_REG 0x1810 +#define MVPP2_CLS_PORT_WAY_MASK(port) (1 << (port)) +#define MVPP2_CLS_LKP_INDEX_REG 0x1814 +#define MVPP2_CLS_LKP_INDEX_WAY_OFFS 6 +#define MVPP2_CLS_LKP_TBL_REG 0x1818 +#define MVPP2_CLS_LKP_TBL_RXQ_MASK 0xff +#define MVPP2_CLS_LKP_FLOW_PTR(flow) ((flow) << 16) +#define MVPP2_CLS_LKP_TBL_LOOKUP_EN_MASK BIT(25) +#define MVPP2_CLS_FLOW_INDEX_REG 0x1820 +#define MVPP2_CLS_FLOW_TBL0_REG 0x1824 +#define MVPP2_CLS_FLOW_TBL0_LAST BIT(0) +#define MVPP2_CLS_FLOW_TBL0_ENG_MASK 0x7 +#define MVPP2_CLS_FLOW_TBL0_OFFS 1 +#define MVPP2_CLS_FLOW_TBL0_ENG(x) ((x) << 1) +#define MVPP2_CLS_FLOW_TBL0_PORT_ID_MASK 0xff +#define MVPP2_CLS_FLOW_TBL0_PORT_ID(port) ((port) << 4) +#define MVPP2_CLS_FLOW_TBL0_PORT_ID_SEL BIT(23) +#define MVPP2_CLS_FLOW_TBL1_REG 0x1828 +#define MVPP2_CLS_FLOW_TBL1_N_FIELDS_MASK 0x7 +#define MVPP2_CLS_FLOW_TBL1_N_FIELDS(x) (x) +#define MVPP2_CLS_FLOW_TBL1_LU_TYPE(lu) (((lu) & 0x3f) << 3) +#define MVPP2_CLS_FLOW_TBL1_PRIO_MASK 0x3f +#define MVPP2_CLS_FLOW_TBL1_PRIO(x) ((x) << 9) +#define MVPP2_CLS_FLOW_TBL1_SEQ_MASK 0x7 +#define MVPP2_CLS_FLOW_TBL1_SEQ(x) ((x) << 15) +#define MVPP2_CLS_FLOW_TBL2_REG 0x182c +#define MVPP2_CLS_FLOW_TBL2_FLD_MASK 0x3f +#define MVPP2_CLS_FLOW_TBL2_FLD_OFFS(n) ((n) * 6) +#define MVPP2_CLS_FLOW_TBL2_FLD(n, x) ((x) << ((n) * 6)) +#define MVPP2_CLS_OVERSIZE_RXQ_LOW_REG(port) (0x1980 + ((port) * 4)) +#define MVPP2_CLS_OVERSIZE_RXQ_LOW_BITS 3 +#define MVPP2_CLS_OVERSIZE_RXQ_LOW_MASK 0x7 +#define MVPP2_CLS_SWFWD_P2HQ_REG(port) (0x19b0 + ((port) * 4)) +#define MVPP2_CLS_SWFWD_PCTRL_REG 0x19d0 +#define MVPP2_CLS_SWFWD_PCTRL_MASK(port) (1 << (port)) + +/* Classifier C2 engine Registers */ +#define MVPP22_CLS_C2_TCAM_IDX 0x1b00 +#define MVPP22_CLS_C2_TCAM_DATA0 0x1b10 +#define MVPP22_CLS_C2_TCAM_DATA1 0x1b14 +#define MVPP22_CLS_C2_TCAM_DATA2 0x1b18 +#define MVPP22_CLS_C2_TCAM_DATA3 0x1b1c +#define MVPP22_CLS_C2_TCAM_DATA4 0x1b20 +#define MVPP22_CLS_C2_LU_TYPE(lu) ((lu) & 0x3f) +#define MVPP22_CLS_C2_PORT_ID(port) ((port) << 8) +#define MVPP22_CLS_C2_PORT_MASK (0xff << 8) +#define MVPP22_CLS_C2_TCAM_INV 0x1b24 +#define MVPP22_CLS_C2_TCAM_INV_BIT BIT(31) +#define MVPP22_CLS_C2_HIT_CTR 0x1b50 +#define MVPP22_CLS_C2_ACT 0x1b60 +#define MVPP22_CLS_C2_ACT_RSS_EN(act) (((act) & 0x3) << 19) +#define MVPP22_CLS_C2_ACT_FWD(act) (((act) & 0x7) << 13) +#define MVPP22_CLS_C2_ACT_QHIGH(act) (((act) & 0x3) << 11) +#define MVPP22_CLS_C2_ACT_QLOW(act) (((act) & 0x3) << 9) +#define MVPP22_CLS_C2_ACT_COLOR(act) ((act) & 0x7) +#define MVPP22_CLS_C2_ATTR0 0x1b64 +#define MVPP22_CLS_C2_ATTR0_QHIGH(qh) (((qh) & 0x1f) << 24) +#define MVPP22_CLS_C2_ATTR0_QHIGH_MASK 0x1f +#define MVPP22_CLS_C2_ATTR0_QHIGH_OFFS 24 +#define MVPP22_CLS_C2_ATTR0_QLOW(ql) (((ql) & 0x7) << 21) +#define MVPP22_CLS_C2_ATTR0_QLOW_MASK 0x7 +#define MVPP22_CLS_C2_ATTR0_QLOW_OFFS 21 +#define MVPP22_CLS_C2_ATTR1 0x1b68 +#define MVPP22_CLS_C2_ATTR2 0x1b6c +#define MVPP22_CLS_C2_ATTR2_RSS_EN BIT(30) +#define MVPP22_CLS_C2_ATTR3 0x1b70 +#define MVPP22_CLS_C2_TCAM_CTRL 0x1b90 +#define MVPP22_CLS_C2_TCAM_BYPASS_FIFO BIT(0) + +/* Descriptor Manager Top Registers */ +#define MVPP2_RXQ_NUM_REG 0x2040 +#define MVPP2_RXQ_DESC_ADDR_REG 0x2044 +#define MVPP22_DESC_ADDR_OFFS 8 +#define MVPP2_RXQ_DESC_SIZE_REG 0x2048 +#define MVPP2_RXQ_DESC_SIZE_MASK 0x3ff0 +#define MVPP2_RXQ_STATUS_UPDATE_REG(rxq) (0x3000 + 4 * (rxq)) +#define MVPP2_RXQ_NUM_PROCESSED_OFFSET 0 +#define MVPP2_RXQ_NUM_NEW_OFFSET 16 +#define MVPP2_RXQ_STATUS_REG(rxq) (0x3400 + 4 * (rxq)) +#define MVPP2_RXQ_OCCUPIED_MASK 0x3fff +#define MVPP2_RXQ_NON_OCCUPIED_OFFSET 16 +#define MVPP2_RXQ_NON_OCCUPIED_MASK 0x3fff0000 +#define MVPP2_RXQ_THRESH_REG 0x204c +#define MVPP2_OCCUPIED_THRESH_OFFSET 0 +#define MVPP2_OCCUPIED_THRESH_MASK 0x3fff +#define MVPP2_RXQ_INDEX_REG 0x2050 +#define MVPP2_TXQ_NUM_REG 0x2080 +#define MVPP2_TXQ_DESC_ADDR_REG 0x2084 +#define MVPP2_TXQ_DESC_SIZE_REG 0x2088 +#define MVPP2_TXQ_DESC_SIZE_MASK 0x3ff0 +#define MVPP2_TXQ_THRESH_REG 0x2094 +#define MVPP2_TXQ_THRESH_OFFSET 16 +#define MVPP2_TXQ_THRESH_MASK 0x3fff +#define MVPP2_AGGR_TXQ_UPDATE_REG 0x2090 +#define MVPP2_TXQ_INDEX_REG 0x2098 +#define MVPP2_TXQ_PREF_BUF_REG 0x209c +#define MVPP2_PREF_BUF_PTR(desc) ((desc) & 0xfff) +#define MVPP2_PREF_BUF_SIZE_4 (BIT(12) | BIT(13)) +#define MVPP2_PREF_BUF_SIZE_16 (BIT(12) | BIT(14)) +#define MVPP2_PREF_BUF_THRESH(val) ((val) << 17) +#define MVPP2_TXQ_DRAIN_EN_MASK BIT(31) +#define MVPP2_TXQ_PENDING_REG 0x20a0 +#define MVPP2_TXQ_PENDING_MASK 0x3fff +#define MVPP2_TXQ_INT_STATUS_REG 0x20a4 +#define MVPP2_TXQ_SENT_REG(txq) (0x3c00 + 4 * (txq)) +#define MVPP2_TRANSMITTED_COUNT_OFFSET 16 +#define MVPP2_TRANSMITTED_COUNT_MASK 0x3fff0000 +#define MVPP2_TXQ_RSVD_REQ_REG 0x20b0 +#define MVPP2_TXQ_RSVD_REQ_Q_OFFSET 16 +#define MVPP2_TXQ_RSVD_RSLT_REG 0x20b4 +#define MVPP2_TXQ_RSVD_RSLT_MASK 0x3fff +#define MVPP2_TXQ_RSVD_CLR_REG 0x20b8 +#define MVPP2_TXQ_RSVD_CLR_OFFSET 16 +#define MVPP2_AGGR_TXQ_DESC_ADDR_REG(cpu) (0x2100 + 4 * (cpu)) +#define MVPP22_AGGR_TXQ_DESC_ADDR_OFFS 8 +#define MVPP2_AGGR_TXQ_DESC_SIZE_REG(cpu) (0x2140 + 4 * (cpu)) +#define MVPP2_AGGR_TXQ_DESC_SIZE_MASK 0x3ff0 +#define MVPP2_AGGR_TXQ_STATUS_REG(cpu) (0x2180 + 4 * (cpu)) +#define MVPP2_AGGR_TXQ_PENDING_MASK 0x3fff +#define MVPP2_AGGR_TXQ_INDEX_REG(cpu) (0x21c0 + 4 * (cpu)) + +/* MBUS bridge registers */ +#define MVPP2_WIN_BASE(w) (0x4000 + ((w) << 2)) +#define MVPP2_WIN_SIZE(w) (0x4020 + ((w) << 2)) +#define MVPP2_WIN_REMAP(w) (0x4040 + ((w) << 2)) +#define MVPP2_BASE_ADDR_ENABLE 0x4060 + +/* AXI Bridge Registers */ +#define MVPP22_AXI_BM_WR_ATTR_REG 0x4100 +#define MVPP22_AXI_BM_RD_ATTR_REG 0x4104 +#define MVPP22_AXI_AGGRQ_DESCR_RD_ATTR_REG 0x4110 +#define MVPP22_AXI_TXQ_DESCR_WR_ATTR_REG 0x4114 +#define MVPP22_AXI_TXQ_DESCR_RD_ATTR_REG 0x4118 +#define MVPP22_AXI_RXQ_DESCR_WR_ATTR_REG 0x411c +#define MVPP22_AXI_RX_DATA_WR_ATTR_REG 0x4120 +#define MVPP22_AXI_TX_DATA_RD_ATTR_REG 0x4130 +#define MVPP22_AXI_RD_NORMAL_CODE_REG 0x4150 +#define MVPP22_AXI_RD_SNOOP_CODE_REG 0x4154 +#define MVPP22_AXI_WR_NORMAL_CODE_REG 0x4160 +#define MVPP22_AXI_WR_SNOOP_CODE_REG 0x4164 + +/* Values for AXI Bridge registers */ +#define MVPP22_AXI_ATTR_CACHE_OFFS 0 +#define MVPP22_AXI_ATTR_DOMAIN_OFFS 12 + +#define MVPP22_AXI_CODE_CACHE_OFFS 0 +#define MVPP22_AXI_CODE_DOMAIN_OFFS 4 + +#define MVPP22_AXI_CODE_CACHE_NON_CACHE 0x3 +#define MVPP22_AXI_CODE_CACHE_WR_CACHE 0x7 +#define MVPP22_AXI_CODE_CACHE_RD_CACHE 0xb + +#define MVPP22_AXI_CODE_DOMAIN_OUTER_DOM 2 +#define MVPP22_AXI_CODE_DOMAIN_SYSTEM 3 + +/* Interrupt Cause and Mask registers */ +#define MVPP2_ISR_TX_THRESHOLD_REG(port) (0x5140 + 4 * (port)) +#define MVPP2_MAX_ISR_TX_THRESHOLD 0xfffff0 + +#define MVPP2_ISR_RX_THRESHOLD_REG(rxq) (0x5200 + 4 * (rxq)) +#define MVPP2_MAX_ISR_RX_THRESHOLD 0xfffff0 +#define MVPP21_ISR_RXQ_GROUP_REG(port) (0x5400 + 4 * (port)) + +#define MVPP22_ISR_RXQ_GROUP_INDEX_REG 0x5400 +#define MVPP22_ISR_RXQ_GROUP_INDEX_SUBGROUP_MASK 0xf +#define MVPP22_ISR_RXQ_GROUP_INDEX_GROUP_MASK 0x380 +#define MVPP22_ISR_RXQ_GROUP_INDEX_GROUP_OFFSET 7 + +#define MVPP22_ISR_RXQ_GROUP_INDEX_SUBGROUP_MASK 0xf +#define MVPP22_ISR_RXQ_GROUP_INDEX_GROUP_MASK 0x380 + +#define MVPP22_ISR_RXQ_SUB_GROUP_CONFIG_REG 0x5404 +#define MVPP22_ISR_RXQ_SUB_GROUP_STARTQ_MASK 0x1f +#define MVPP22_ISR_RXQ_SUB_GROUP_SIZE_MASK 0xf00 +#define MVPP22_ISR_RXQ_SUB_GROUP_SIZE_OFFSET 8 + +#define MVPP2_ISR_ENABLE_REG(port) (0x5420 + 4 * (port)) +#define MVPP2_ISR_ENABLE_INTERRUPT(mask) ((mask) & 0xffff) +#define MVPP2_ISR_DISABLE_INTERRUPT(mask) (((mask) << 16) & 0xffff0000) +#define MVPP2_ISR_RX_TX_CAUSE_REG(port) (0x5480 + 4 * (port)) +#define MVPP2_CAUSE_RXQ_OCCUP_DESC_ALL_MASK(version) \ + ((version) == MVPP21 ? 0xffff : 0xff) +#define MVPP2_CAUSE_TXQ_OCCUP_DESC_ALL_MASK 0xff0000 +#define MVPP2_CAUSE_TXQ_OCCUP_DESC_ALL_OFFSET 16 +#define MVPP2_CAUSE_RX_FIFO_OVERRUN_MASK BIT(24) +#define MVPP2_CAUSE_FCS_ERR_MASK BIT(25) +#define MVPP2_CAUSE_TX_FIFO_UNDERRUN_MASK BIT(26) +#define MVPP2_CAUSE_TX_EXCEPTION_SUM_MASK BIT(29) +#define MVPP2_CAUSE_RX_EXCEPTION_SUM_MASK BIT(30) +#define MVPP2_CAUSE_MISC_SUM_MASK BIT(31) +#define MVPP2_ISR_RX_TX_MASK_REG(port) (0x54a0 + 4 * (port)) +#define MVPP2_ISR_PON_RX_TX_MASK_REG 0x54bc +#define MVPP2_PON_CAUSE_RXQ_OCCUP_DESC_ALL_MASK 0xffff +#define MVPP2_PON_CAUSE_TXP_OCCUP_DESC_ALL_MASK 0x3fc00000 +#define MVPP2_PON_CAUSE_MISC_SUM_MASK BIT(31) +#define MVPP2_ISR_MISC_CAUSE_REG 0x55b0 +#define MVPP2_ISR_RX_ERR_CAUSE_REG(port) (0x5520 + 4 * (port)) +#define MVPP2_ISR_RX_ERR_CAUSE_NONOCC_MASK 0x00ff + +/* Buffer Manager registers */ +#define MVPP2_BM_POOL_BASE_REG(pool) (0x6000 + ((pool) * 4)) +#define MVPP2_BM_POOL_BASE_ADDR_MASK 0xfffff80 +#define MVPP2_BM_POOL_SIZE_REG(pool) (0x6040 + ((pool) * 4)) +#define MVPP2_BM_POOL_SIZE_MASK 0xfff0 +#define MVPP2_BM_POOL_READ_PTR_REG(pool) (0x6080 + ((pool) * 4)) +#define MVPP2_BM_POOL_GET_READ_PTR_MASK 0xfff0 +#define MVPP2_BM_POOL_PTRS_NUM_REG(pool) (0x60c0 + ((pool) * 4)) +#define MVPP2_BM_POOL_PTRS_NUM_MASK 0xfff0 +#define MVPP2_BM_BPPI_READ_PTR_REG(pool) (0x6100 + ((pool) * 4)) +#define MVPP2_BM_BPPI_PTRS_NUM_REG(pool) (0x6140 + ((pool) * 4)) +#define MVPP2_BM_BPPI_PTR_NUM_MASK 0x7ff +#define MVPP22_BM_POOL_PTRS_NUM_MASK 0xfff8 +#define MVPP2_BM_BPPI_PREFETCH_FULL_MASK BIT(16) +#define MVPP2_BM_POOL_CTRL_REG(pool) (0x6200 + ((pool) * 4)) +#define MVPP2_BM_START_MASK BIT(0) +#define MVPP2_BM_STOP_MASK BIT(1) +#define MVPP2_BM_STATE_MASK BIT(4) +#define MVPP2_BM_LOW_THRESH_OFFS 8 +#define MVPP2_BM_LOW_THRESH_MASK 0x7f00 +#define MVPP2_BM_LOW_THRESH_VALUE(val) ((val) << \ + MVPP2_BM_LOW_THRESH_OFFS) +#define MVPP2_BM_HIGH_THRESH_OFFS 16 +#define MVPP2_BM_HIGH_THRESH_MASK 0x7f0000 +#define MVPP2_BM_HIGH_THRESH_VALUE(val) ((val) << \ + MVPP2_BM_HIGH_THRESH_OFFS) +#define MVPP2_BM_BPPI_HIGH_THRESH 0x1E +#define MVPP2_BM_BPPI_LOW_THRESH 0x1C +#define MVPP23_BM_BPPI_HIGH_THRESH 0x34 +#define MVPP23_BM_BPPI_LOW_THRESH 0x28 +#define MVPP2_BM_INTR_CAUSE_REG(pool) (0x6240 + ((pool) * 4)) +#define MVPP2_BM_RELEASED_DELAY_MASK BIT(0) +#define MVPP2_BM_ALLOC_FAILED_MASK BIT(1) +#define MVPP2_BM_BPPE_EMPTY_MASK BIT(2) +#define MVPP2_BM_BPPE_FULL_MASK BIT(3) +#define MVPP2_BM_AVAILABLE_BP_LOW_MASK BIT(4) +#define MVPP2_BM_INTR_MASK_REG(pool) (0x6280 + ((pool) * 4)) +#define MVPP2_BM_PHY_ALLOC_REG(pool) (0x6400 + ((pool) * 4)) +#define MVPP2_BM_PHY_ALLOC_GRNTD_MASK BIT(0) +#define MVPP2_BM_VIRT_ALLOC_REG 0x6440 +#define MVPP22_BM_ADDR_HIGH_ALLOC 0x6444 +#define MVPP22_BM_ADDR_HIGH_PHYS_MASK 0xff +#define MVPP22_BM_ADDR_HIGH_VIRT_MASK 0xff00 +#define MVPP22_BM_ADDR_HIGH_VIRT_SHIFT 8 +#define MVPP2_BM_PHY_RLS_REG(pool) (0x6480 + ((pool) * 4)) +#define MVPP2_BM_PHY_RLS_MC_BUFF_MASK BIT(0) +#define MVPP2_BM_PHY_RLS_PRIO_EN_MASK BIT(1) +#define MVPP2_BM_PHY_RLS_GRNTD_MASK BIT(2) +#define MVPP2_BM_VIRT_RLS_REG 0x64c0 +#define MVPP22_BM_ADDR_HIGH_RLS_REG 0x64c4 +#define MVPP22_BM_ADDR_HIGH_PHYS_RLS_MASK 0xff +#define MVPP22_BM_ADDR_HIGH_VIRT_RLS_MASK 0xff00 +#define MVPP22_BM_ADDR_HIGH_VIRT_RLS_SHIFT 8 + +/* Packet Processor per-port counters */ +#define MVPP2_OVERRUN_ETH_DROP 0x7000 +#define MVPP2_CLS_ETH_DROP 0x7020 + +#define MVPP22_BM_POOL_BASE_ADDR_HIGH_REG 0x6310 +#define MVPP22_BM_POOL_BASE_ADDR_HIGH_MASK 0xff +#define MVPP23_BM_8POOL_MODE BIT(8) + +/* Hit counters registers */ +#define MVPP2_CTRS_IDX 0x7040 +#define MVPP22_CTRS_TX_CTR(port, txq) ((txq) | ((port) << 3) | BIT(7)) +#define MVPP2_TX_DESC_ENQ_CTR 0x7100 +#define MVPP2_TX_DESC_ENQ_TO_DDR_CTR 0x7104 +#define MVPP2_TX_BUFF_ENQ_TO_DDR_CTR 0x7108 +#define MVPP2_TX_DESC_ENQ_HW_FWD_CTR 0x710c +#define MVPP2_RX_DESC_ENQ_CTR 0x7120 +#define MVPP2_TX_PKTS_DEQ_CTR 0x7130 +#define MVPP2_TX_PKTS_FULL_QUEUE_DROP_CTR 0x7200 +#define MVPP2_TX_PKTS_EARLY_DROP_CTR 0x7204 +#define MVPP2_TX_PKTS_BM_DROP_CTR 0x7208 +#define MVPP2_TX_PKTS_BM_MC_DROP_CTR 0x720c +#define MVPP2_RX_PKTS_FULL_QUEUE_DROP_CTR 0x7220 +#define MVPP2_RX_PKTS_EARLY_DROP_CTR 0x7224 +#define MVPP2_RX_PKTS_BM_DROP_CTR 0x7228 +#define MVPP2_CLS_DEC_TBL_HIT_CTR 0x7700 +#define MVPP2_CLS_FLOW_TBL_HIT_CTR 0x7704 + +/* TX Scheduler registers */ +#define MVPP2_TXP_SCHED_PORT_INDEX_REG 0x8000 +#define MVPP2_TXP_SCHED_Q_CMD_REG 0x8004 +#define MVPP2_TXP_SCHED_ENQ_MASK 0xff +#define MVPP2_TXP_SCHED_DISQ_OFFSET 8 +#define MVPP2_TXP_SCHED_CMD_1_REG 0x8010 +#define MVPP2_TXP_SCHED_FIXED_PRIO_REG 0x8014 +#define MVPP2_TXP_SCHED_PERIOD_REG 0x8018 +#define MVPP2_TXP_SCHED_MTU_REG 0x801c +#define MVPP2_TXP_MTU_MAX 0x7FFFF +#define MVPP2_TXP_SCHED_REFILL_REG 0x8020 +#define MVPP2_TXP_REFILL_TOKENS_ALL_MASK 0x7ffff +#define MVPP2_TXP_REFILL_PERIOD_ALL_MASK 0x3ff00000 +#define MVPP2_TXP_REFILL_PERIOD_MASK(v) ((v) << 20) +#define MVPP2_TXP_SCHED_TOKEN_SIZE_REG 0x8024 +#define MVPP2_TXP_TOKEN_SIZE_MAX 0xffffffff +#define MVPP2_TXQ_SCHED_REFILL_REG(q) (0x8040 + ((q) << 2)) +#define MVPP2_TXQ_REFILL_TOKENS_ALL_MASK 0x7ffff +#define MVPP2_TXQ_REFILL_PERIOD_ALL_MASK 0x3ff00000 +#define MVPP2_TXQ_REFILL_PERIOD_MASK(v) ((v) << 20) +#define MVPP2_TXQ_SCHED_TOKEN_SIZE_REG(q) (0x8060 + ((q) << 2)) +#define MVPP2_TXQ_TOKEN_SIZE_MAX 0x7fffffff +#define MVPP2_TXQ_SCHED_TOKEN_CNTR_REG(q) (0x8080 + ((q) << 2)) +#define MVPP2_TXQ_TOKEN_CNTR_MAX 0xffffffff + +/* TX general registers */ +#define MVPP2_TX_SNOOP_REG 0x8800 +#define MVPP2_TX_PORT_FLUSH_REG 0x8810 +#define MVPP2_TX_PORT_FLUSH_MASK(port) (1 << (port)) + +/* LMS registers */ +#define MVPP2_SRC_ADDR_MIDDLE 0x24 +#define MVPP2_SRC_ADDR_HIGH 0x28 +#define MVPP2_PHY_AN_CFG0_REG 0x34 +#define MVPP2_PHY_AN_STOP_SMI0_MASK BIT(7) +#define MVPP2_MNG_EXTENDED_GLOBAL_CTRL_REG 0x305c +#define MVPP2_EXT_GLOBAL_CTRL_DEFAULT 0x27 + +/* Per-port registers */ +#define MVPP2_GMAC_CTRL_0_REG 0x0 +#define MVPP2_GMAC_PORT_EN_MASK BIT(0) +#define MVPP2_GMAC_PORT_TYPE_MASK BIT(1) +#define MVPP2_GMAC_MAX_RX_SIZE_OFFS 2 +#define MVPP2_GMAC_MAX_RX_SIZE_MASK 0x7ffc +#define MVPP2_GMAC_MIB_CNTR_EN_MASK BIT(15) +#define MVPP2_GMAC_CTRL_1_REG 0x4 +#define MVPP2_GMAC_PERIODIC_XON_EN_MASK BIT(1) +#define MVPP2_GMAC_GMII_LB_EN_MASK BIT(5) +#define MVPP2_GMAC_PCS_LB_EN_BIT 6 +#define MVPP2_GMAC_PCS_LB_EN_MASK BIT(6) +#define MVPP2_GMAC_SA_LOW_OFFS 7 +#define MVPP2_GMAC_CTRL_2_REG 0x8 +#define MVPP2_GMAC_INBAND_AN_MASK BIT(0) +#define MVPP2_GMAC_FLOW_CTRL_MASK GENMASK(2, 1) +#define MVPP2_GMAC_PCS_ENABLE_MASK BIT(3) +#define MVPP2_GMAC_INTERNAL_CLK_MASK BIT(4) +#define MVPP2_GMAC_DISABLE_PADDING BIT(5) +#define MVPP2_GMAC_PORT_RESET_MASK BIT(6) +#define MVPP2_GMAC_AUTONEG_CONFIG 0xc +#define MVPP2_GMAC_FORCE_LINK_DOWN BIT(0) +#define MVPP2_GMAC_FORCE_LINK_PASS BIT(1) +#define MVPP2_GMAC_IN_BAND_AUTONEG BIT(2) +#define MVPP2_GMAC_IN_BAND_AUTONEG_BYPASS BIT(3) +#define MVPP2_GMAC_IN_BAND_RESTART_AN BIT(4) +#define MVPP2_GMAC_CONFIG_MII_SPEED BIT(5) +#define MVPP2_GMAC_CONFIG_GMII_SPEED BIT(6) +#define MVPP2_GMAC_AN_SPEED_EN BIT(7) +#define MVPP2_GMAC_FC_ADV_EN BIT(9) +#define MVPP2_GMAC_FC_ADV_ASM_EN BIT(10) +#define MVPP2_GMAC_FLOW_CTRL_AUTONEG BIT(11) +#define MVPP2_GMAC_CONFIG_FULL_DUPLEX BIT(12) +#define MVPP2_GMAC_AN_DUPLEX_EN BIT(13) +#define MVPP2_GMAC_STATUS0 0x10 +#define MVPP2_GMAC_STATUS0_LINK_UP BIT(0) +#define MVPP2_GMAC_STATUS0_GMII_SPEED BIT(1) +#define MVPP2_GMAC_STATUS0_MII_SPEED BIT(2) +#define MVPP2_GMAC_STATUS0_FULL_DUPLEX BIT(3) +#define MVPP2_GMAC_STATUS0_RX_PAUSE BIT(4) +#define MVPP2_GMAC_STATUS0_TX_PAUSE BIT(5) +#define MVPP2_GMAC_STATUS0_AN_COMPLETE BIT(11) +#define MVPP2_GMAC_PORT_FIFO_CFG_1_REG 0x1c +#define MVPP2_GMAC_TX_FIFO_MIN_TH_OFFS 6 +#define MVPP2_GMAC_TX_FIFO_MIN_TH_ALL_MASK 0x1fc0 +#define MVPP2_GMAC_TX_FIFO_MIN_TH_MASK(v) (((v) << 6) & \ + MVPP2_GMAC_TX_FIFO_MIN_TH_ALL_MASK) +#define MVPP22_GMAC_INT_STAT 0x20 +#define MVPP22_GMAC_INT_STAT_LINK BIT(1) +#define MVPP22_GMAC_INT_MASK 0x24 +#define MVPP22_GMAC_INT_MASK_LINK_STAT BIT(1) +#define MVPP22_GMAC_CTRL_4_REG 0x90 +#define MVPP22_CTRL4_EXT_PIN_GMII_SEL BIT(0) +#define MVPP22_CTRL4_RX_FC_EN BIT(3) +#define MVPP22_CTRL4_TX_FC_EN BIT(4) +#define MVPP22_CTRL4_DP_CLK_SEL BIT(5) +#define MVPP22_CTRL4_SYNC_BYPASS_DIS BIT(6) +#define MVPP22_CTRL4_QSGMII_BYPASS_ACTIVE BIT(7) +#define MVPP22_GMAC_INT_SUM_STAT 0xa0 +#define MVPP22_GMAC_INT_SUM_STAT_INTERNAL BIT(1) +#define MVPP22_GMAC_INT_SUM_STAT_PTP BIT(2) +#define MVPP22_GMAC_INT_SUM_MASK 0xa4 +#define MVPP22_GMAC_INT_SUM_MASK_LINK_STAT BIT(1) +#define MVPP22_GMAC_INT_SUM_MASK_PTP BIT(2) + +/* Per-port XGMAC registers. PPv2.2 and PPv2.3, only for GOP port 0, + * relative to port->base. + */ +#define MVPP22_XLG_CTRL0_REG 0x100 +#define MVPP22_XLG_CTRL0_PORT_EN BIT(0) +#define MVPP22_XLG_CTRL0_MAC_RESET_DIS BIT(1) +#define MVPP22_XLG_CTRL0_FORCE_LINK_DOWN BIT(2) +#define MVPP22_XLG_CTRL0_FORCE_LINK_PASS BIT(3) +#define MVPP22_XLG_CTRL0_RX_FLOW_CTRL_EN BIT(7) +#define MVPP22_XLG_CTRL0_TX_FLOW_CTRL_EN BIT(8) +#define MVPP22_XLG_CTRL0_MIB_CNT_DIS BIT(14) +#define MVPP22_XLG_CTRL1_REG 0x104 +#define MVPP22_XLG_CTRL1_FRAMESIZELIMIT_OFFS 0 +#define MVPP22_XLG_CTRL1_FRAMESIZELIMIT_MASK 0x1fff +#define MVPP22_XLG_STATUS 0x10c +#define MVPP22_XLG_STATUS_LINK_UP BIT(0) +#define MVPP22_XLG_INT_STAT 0x114 +#define MVPP22_XLG_INT_STAT_LINK BIT(1) +#define MVPP22_XLG_INT_MASK 0x118 +#define MVPP22_XLG_INT_MASK_LINK BIT(1) +#define MVPP22_XLG_CTRL3_REG 0x11c +#define MVPP22_XLG_CTRL3_MACMODESELECT_MASK (7 << 13) +#define MVPP22_XLG_CTRL3_MACMODESELECT_GMAC (0 << 13) +#define MVPP22_XLG_CTRL3_MACMODESELECT_10G (1 << 13) +#define MVPP22_XLG_EXT_INT_STAT 0x158 +#define MVPP22_XLG_EXT_INT_STAT_XLG BIT(1) +#define MVPP22_XLG_EXT_INT_STAT_PTP BIT(7) +#define MVPP22_XLG_EXT_INT_MASK 0x15c +#define MVPP22_XLG_EXT_INT_MASK_XLG BIT(1) +#define MVPP22_XLG_EXT_INT_MASK_GIG BIT(2) +#define MVPP22_XLG_EXT_INT_MASK_PTP BIT(7) +#define MVPP22_XLG_CTRL4_REG 0x184 +#define MVPP22_XLG_CTRL4_FWD_FC BIT(5) +#define MVPP22_XLG_CTRL4_FWD_PFC BIT(6) +#define MVPP22_XLG_CTRL4_MACMODSELECT_GMAC BIT(12) +#define MVPP22_XLG_CTRL4_EN_IDLE_CHECK BIT(14) + +/* SMI registers. PPv2.2 and PPv2.3, relative to priv->iface_base. */ +#define MVPP22_SMI_MISC_CFG_REG 0x1204 +#define MVPP22_SMI_POLLING_EN BIT(10) + +/* TAI registers, PPv2.2 only, relative to priv->iface_base */ +#define MVPP22_TAI_INT_CAUSE 0x1400 +#define MVPP22_TAI_INT_MASK 0x1404 +#define MVPP22_TAI_CR0 0x1408 +#define MVPP22_TAI_CR1 0x140c +#define MVPP22_TAI_TCFCR0 0x1410 +#define MVPP22_TAI_TCFCR1 0x1414 +#define MVPP22_TAI_TCFCR2 0x1418 +#define MVPP22_TAI_FATWR 0x141c +#define MVPP22_TAI_TOD_STEP_NANO_CR 0x1420 +#define MVPP22_TAI_TOD_STEP_FRAC_HIGH 0x1424 +#define MVPP22_TAI_TOD_STEP_FRAC_LOW 0x1428 +#define MVPP22_TAI_TAPDC_HIGH 0x142c +#define MVPP22_TAI_TAPDC_LOW 0x1430 +#define MVPP22_TAI_TGTOD_SEC_HIGH 0x1434 +#define MVPP22_TAI_TGTOD_SEC_MED 0x1438 +#define MVPP22_TAI_TGTOD_SEC_LOW 0x143c +#define MVPP22_TAI_TGTOD_NANO_HIGH 0x1440 +#define MVPP22_TAI_TGTOD_NANO_LOW 0x1444 +#define MVPP22_TAI_TGTOD_FRAC_HIGH 0x1448 +#define MVPP22_TAI_TGTOD_FRAC_LOW 0x144c +#define MVPP22_TAI_TLV_SEC_HIGH 0x1450 +#define MVPP22_TAI_TLV_SEC_MED 0x1454 +#define MVPP22_TAI_TLV_SEC_LOW 0x1458 +#define MVPP22_TAI_TLV_NANO_HIGH 0x145c +#define MVPP22_TAI_TLV_NANO_LOW 0x1460 +#define MVPP22_TAI_TLV_FRAC_HIGH 0x1464 +#define MVPP22_TAI_TLV_FRAC_LOW 0x1468 +#define MVPP22_TAI_TCV0_SEC_HIGH 0x146c +#define MVPP22_TAI_TCV0_SEC_MED 0x1470 +#define MVPP22_TAI_TCV0_SEC_LOW 0x1474 +#define MVPP22_TAI_TCV0_NANO_HIGH 0x1478 +#define MVPP22_TAI_TCV0_NANO_LOW 0x147c +#define MVPP22_TAI_TCV0_FRAC_HIGH 0x1480 +#define MVPP22_TAI_TCV0_FRAC_LOW 0x1484 +#define MVPP22_TAI_TCV1_SEC_HIGH 0x1488 +#define MVPP22_TAI_TCV1_SEC_MED 0x148c +#define MVPP22_TAI_TCV1_SEC_LOW 0x1490 +#define MVPP22_TAI_TCV1_NANO_HIGH 0x1494 +#define MVPP22_TAI_TCV1_NANO_LOW 0x1498 +#define MVPP22_TAI_TCV1_FRAC_HIGH 0x149c +#define MVPP22_TAI_TCV1_FRAC_LOW 0x14a0 +#define MVPP22_TAI_TCSR 0x14a4 +#define MVPP22_TAI_TUC_LSB 0x14a8 +#define MVPP22_TAI_GFM_SEC_HIGH 0x14ac +#define MVPP22_TAI_GFM_SEC_MED 0x14b0 +#define MVPP22_TAI_GFM_SEC_LOW 0x14b4 +#define MVPP22_TAI_GFM_NANO_HIGH 0x14b8 +#define MVPP22_TAI_GFM_NANO_LOW 0x14bc +#define MVPP22_TAI_GFM_FRAC_HIGH 0x14c0 +#define MVPP22_TAI_GFM_FRAC_LOW 0x14c4 +#define MVPP22_TAI_PCLK_DA_HIGH 0x14c8 +#define MVPP22_TAI_PCLK_DA_LOW 0x14cc +#define MVPP22_TAI_CTCR 0x14d0 +#define MVPP22_TAI_PCLK_CCC_HIGH 0x14d4 +#define MVPP22_TAI_PCLK_CCC_LOW 0x14d8 +#define MVPP22_TAI_DTC_HIGH 0x14dc +#define MVPP22_TAI_DTC_LOW 0x14e0 +#define MVPP22_TAI_CCC_HIGH 0x14e4 +#define MVPP22_TAI_CCC_LOW 0x14e8 +#define MVPP22_TAI_ICICE 0x14f4 +#define MVPP22_TAI_ICICC_LOW 0x14f8 +#define MVPP22_TAI_TUC_MSB 0x14fc + +#define MVPP22_GMAC_BASE(port) (0x7000 + (port) * 0x1000 + 0xe00) + +#define MVPP2_CAUSE_TXQ_SENT_DESC_ALL_MASK 0xff + +/* Descriptor ring Macros */ +#define MVPP2_QUEUE_NEXT_DESC(q, index) \ + (((index) < (q)->last_desc) ? ((index) + 1) : 0) + +/* XPCS registers.PPv2.2 and PPv2.3 */ +#define MVPP22_MPCS_BASE(port) (0x7000 + (port) * 0x1000) +#define MVPP22_MPCS_CTRL 0x14 +#define MVPP22_MPCS_CTRL_FWD_ERR_CONN BIT(10) +#define MVPP22_MPCS_CLK_RESET 0x14c +#define MAC_CLK_RESET_SD_TX BIT(0) +#define MAC_CLK_RESET_SD_RX BIT(1) +#define MAC_CLK_RESET_MAC BIT(2) +#define MVPP22_MPCS_CLK_RESET_DIV_RATIO(n) ((n) << 4) +#define MVPP22_MPCS_CLK_RESET_DIV_SET BIT(11) + +/* FCA registers. PPv2.2 and PPv2.3 */ +#define MVPP22_FCA_BASE(port) (0x7600 + (port) * 0x1000) +#define MVPP22_FCA_REG_SIZE 16 +#define MVPP22_FCA_REG_MASK 0xFFFF +#define MVPP22_FCA_CONTROL_REG 0x0 +#define MVPP22_FCA_ENABLE_PERIODIC BIT(11) +#define MVPP22_PERIODIC_COUNTER_LSB_REG (0x110) +#define MVPP22_PERIODIC_COUNTER_MSB_REG (0x114) + +/* XPCS registers. PPv2.2 and PPv2.3 */ +#define MVPP22_XPCS_BASE(port) (0x7400 + (port) * 0x1000) +#define MVPP22_XPCS_CFG0 0x0 +#define MVPP22_XPCS_CFG0_RESET_DIS BIT(0) +#define MVPP22_XPCS_CFG0_PCS_MODE(n) ((n) << 3) +#define MVPP22_XPCS_CFG0_ACTIVE_LANE(n) ((n) << 5) + +/* PTP registers. PPv2.2 only */ +#define MVPP22_PTP_BASE(port) (0x7800 + (port * 0x1000)) +#define MVPP22_PTP_INT_CAUSE 0x00 +#define MVPP22_PTP_INT_CAUSE_QUEUE1 BIT(6) +#define MVPP22_PTP_INT_CAUSE_QUEUE0 BIT(5) +#define MVPP22_PTP_INT_MASK 0x04 +#define MVPP22_PTP_INT_MASK_QUEUE1 BIT(6) +#define MVPP22_PTP_INT_MASK_QUEUE0 BIT(5) +#define MVPP22_PTP_GCR 0x08 +#define MVPP22_PTP_GCR_RX_RESET BIT(13) +#define MVPP22_PTP_GCR_TX_RESET BIT(1) +#define MVPP22_PTP_GCR_TSU_ENABLE BIT(0) +#define MVPP22_PTP_TX_Q0_R0 0x0c +#define MVPP22_PTP_TX_Q0_R1 0x10 +#define MVPP22_PTP_TX_Q0_R2 0x14 +#define MVPP22_PTP_TX_Q1_R0 0x18 +#define MVPP22_PTP_TX_Q1_R1 0x1c +#define MVPP22_PTP_TX_Q1_R2 0x20 +#define MVPP22_PTP_TPCR 0x24 +#define MVPP22_PTP_V1PCR 0x28 +#define MVPP22_PTP_V2PCR 0x2c +#define MVPP22_PTP_Y1731PCR 0x30 +#define MVPP22_PTP_NTPTSPCR 0x34 +#define MVPP22_PTP_NTPRXPCR 0x38 +#define MVPP22_PTP_NTPTXPCR 0x3c +#define MVPP22_PTP_WAMPPCR 0x40 +#define MVPP22_PTP_NAPCR 0x44 +#define MVPP22_PTP_FAPCR 0x48 +#define MVPP22_PTP_CAPCR 0x50 +#define MVPP22_PTP_ATAPCR 0x54 +#define MVPP22_PTP_ACTAPCR 0x58 +#define MVPP22_PTP_CATAPCR 0x5c +#define MVPP22_PTP_CACTAPCR 0x60 +#define MVPP22_PTP_AITAPCR 0x64 +#define MVPP22_PTP_CAITAPCR 0x68 +#define MVPP22_PTP_CITAPCR 0x6c +#define MVPP22_PTP_NTP_OFF_HIGH 0x70 +#define MVPP22_PTP_NTP_OFF_LOW 0x74 +#define MVPP22_PTP_TX_PIPE_STATUS_DELAY 0x78 + +/* System controller registers. Accessed through a regmap. */ +#define GENCONF_SOFT_RESET1 0x1108 +#define GENCONF_SOFT_RESET1_GOP BIT(6) +#define GENCONF_PORT_CTRL0 0x1110 +#define GENCONF_PORT_CTRL0_BUS_WIDTH_SELECT BIT(1) +#define GENCONF_PORT_CTRL0_RX_DATA_SAMPLE BIT(29) +#define GENCONF_PORT_CTRL0_CLK_DIV_PHASE_CLR BIT(31) +#define GENCONF_PORT_CTRL1 0x1114 +#define GENCONF_PORT_CTRL1_EN(p) BIT(p) +#define GENCONF_PORT_CTRL1_RESET(p) (BIT(p) << 28) +#define GENCONF_CTRL0 0x1120 +#define GENCONF_CTRL0_PORT2_RGMII BIT(0) +#define GENCONF_CTRL0_PORT3_RGMII_MII BIT(1) +#define GENCONF_CTRL0_PORT3_RGMII BIT(2) + +/* Various constants */ + +/* Coalescing */ +#define MVPP2_TXDONE_COAL_PKTS_THRESH 64 +#define MVPP2_TXDONE_HRTIMER_PERIOD_NS 1000000UL +#define MVPP2_TXDONE_COAL_USEC 1000 +#define MVPP2_RX_COAL_PKTS 32 +#define MVPP2_RX_COAL_USEC 64 + +/* The two bytes Marvell header. Either contains a special value used + * by Marvell switches when a specific hardware mode is enabled (not + * supported by this driver) or is filled automatically by zeroes on + * the RX side. Those two bytes being at the front of the Ethernet + * header, they allow to have the IP header aligned on a 4 bytes + * boundary automatically: the hardware skips those two bytes on its + * own. + */ +#define MVPP2_MH_SIZE 2 +#define MVPP2_ETH_TYPE_LEN 2 +#define MVPP2_PPPOE_HDR_SIZE 8 +#define MVPP2_VLAN_TAG_LEN 4 +#define MVPP2_VLAN_TAG_EDSA_LEN 8 + +/* Lbtd 802.3 type */ +#define MVPP2_IP_LBDT_TYPE 0xfffa + +#define MVPP2_TX_CSUM_MAX_SIZE 9800 + +/* Timeout constants */ +#define MVPP2_TX_DISABLE_TIMEOUT_MSEC 1000 +#define MVPP2_TX_PENDING_TIMEOUT_MSEC 1000 + +#define MVPP2_TX_MTU_MAX 0x7ffff + +/* Maximum number of T-CONTs of PON port */ +#define MVPP2_MAX_TCONT 16 + +/* Maximum number of supported ports */ +#define MVPP2_MAX_PORTS 4 + +/* Loopback port index */ +#define MVPP2_LOOPBACK_PORT_INDEX 3 + +/* Maximum number of TXQs used by single port */ +#define MVPP2_MAX_TXQ 8 + +/* MVPP2_MAX_TSO_SEGS is the maximum number of fragments to allow in the GSO + * skb. As we need a maxium of two descriptors per fragments (1 header, 1 data), + * multiply this value by two to count the maximum number of skb descs needed. + */ +#define MVPP2_MAX_TSO_SEGS 300 +#define MVPP2_MAX_SKB_DESCS (MVPP2_MAX_TSO_SEGS * 2 + MAX_SKB_FRAGS) + +/* Max number of RXQs per port */ +#define MVPP2_PORT_MAX_RXQ 32 + +/* Max number of Rx descriptors */ +#define MVPP2_MAX_RXD_MAX 2048 +#define MVPP2_MAX_RXD_DFLT 1024 + +/* Max number of Tx descriptors */ +#define MVPP2_MAX_TXD_MAX 2048 +#define MVPP2_MAX_TXD_DFLT 1024 + +/* Amount of Tx descriptors that can be reserved at once by CPU */ +#define MVPP2_CPU_DESC_CHUNK 64 + +/* Max number of Tx descriptors in each aggregated queue */ +#define MVPP2_AGGR_TXQ_SIZE 256 + +/* Descriptor aligned size */ +#define MVPP2_DESC_ALIGNED_SIZE 32 + +/* Descriptor alignment mask */ +#define MVPP2_TX_DESC_ALIGN (MVPP2_DESC_ALIGNED_SIZE - 1) + +/* RX FIFO constants */ +#define MVPP2_RX_FIFO_PORT_DATA_SIZE_44KB 0xb000 +#define MVPP2_RX_FIFO_PORT_DATA_SIZE_32KB 0x8000 +#define MVPP2_RX_FIFO_PORT_DATA_SIZE_8KB 0x2000 +#define MVPP2_RX_FIFO_PORT_DATA_SIZE_4KB 0x1000 +#define MVPP2_RX_FIFO_PORT_ATTR_SIZE(data_size) ((data_size) >> 6) +#define MVPP2_RX_FIFO_PORT_ATTR_SIZE_4KB 0x40 +#define MVPP2_RX_FIFO_PORT_MIN_PKT 0x80 + +/* TX FIFO constants */ +#define MVPP22_TX_FIFO_DATA_SIZE_18KB 18 +#define MVPP22_TX_FIFO_DATA_SIZE_10KB 10 +#define MVPP22_TX_FIFO_DATA_SIZE_1KB 1 +#define MVPP2_TX_FIFO_THRESHOLD_MIN 256 /* Bytes */ +#define MVPP2_TX_FIFO_THRESHOLD(kb) \ + ((kb) * 1024 - MVPP2_TX_FIFO_THRESHOLD_MIN) + +/* RX FIFO threshold in 1KB granularity */ +#define MVPP23_PORT0_FIFO_TRSH (9 * 1024) +#define MVPP23_PORT1_FIFO_TRSH (4 * 1024) +#define MVPP23_PORT2_FIFO_TRSH (2 * 1024) + +/* RX Flow Control Registers */ +#define MVPP2_RX_FC_REG(port) (0x150 + 4 * (port)) +#define MVPP2_RX_FC_EN BIT(24) +#define MVPP2_RX_FC_TRSH_OFFS 16 +#define MVPP2_RX_FC_TRSH_MASK (0xFF << MVPP2_RX_FC_TRSH_OFFS) +#define MVPP2_RX_FC_TRSH_UNIT 256 + +/* MSS Flow control */ +#define MSS_FC_COM_REG 0 +#define FLOW_CONTROL_ENABLE_BIT BIT(0) +#define FLOW_CONTROL_UPDATE_COMMAND_BIT BIT(31) +#define FC_QUANTA 0xFFFF +#define FC_CLK_DIVIDER 100 + +#define MSS_RXQ_TRESH_BASE 0x200 +#define MSS_RXQ_TRESH_OFFS 4 +#define MSS_RXQ_TRESH_REG(q, fq) (MSS_RXQ_TRESH_BASE + (((q) + (fq)) \ + * MSS_RXQ_TRESH_OFFS)) + +#define MSS_BUF_POOL_BASE 0x40 +#define MSS_BUF_POOL_OFFS 4 +#define MSS_BUF_POOL_REG(id) (MSS_BUF_POOL_BASE \ + + (id) * MSS_BUF_POOL_OFFS) + +#define MSS_BUF_POOL_STOP_MASK 0xFFF +#define MSS_BUF_POOL_START_MASK (0xFFF << MSS_BUF_POOL_START_OFFS) +#define MSS_BUF_POOL_START_OFFS 12 +#define MSS_BUF_POOL_PORTS_MASK (0xF << MSS_BUF_POOL_PORTS_OFFS) +#define MSS_BUF_POOL_PORTS_OFFS 24 +#define MSS_BUF_POOL_PORT_OFFS(id) (0x1 << \ + ((id) + MSS_BUF_POOL_PORTS_OFFS)) + +#define MSS_RXQ_TRESH_START_MASK 0xFFFF +#define MSS_RXQ_TRESH_STOP_MASK (0xFFFF << MSS_RXQ_TRESH_STOP_OFFS) +#define MSS_RXQ_TRESH_STOP_OFFS 16 + +#define MSS_RXQ_ASS_BASE 0x80 +#define MSS_RXQ_ASS_OFFS 4 +#define MSS_RXQ_ASS_PER_REG 4 +#define MSS_RXQ_ASS_PER_OFFS 8 +#define MSS_RXQ_ASS_PORTID_OFFS 0 +#define MSS_RXQ_ASS_PORTID_MASK 0x3 +#define MSS_RXQ_ASS_HOSTID_OFFS 2 +#define MSS_RXQ_ASS_HOSTID_MASK 0x3F + +#define MSS_RXQ_ASS_Q_BASE(q, fq) ((((q) + (fq)) % MSS_RXQ_ASS_PER_REG) \ + * MSS_RXQ_ASS_PER_OFFS) +#define MSS_RXQ_ASS_PQ_BASE(q, fq) ((((q) + (fq)) / MSS_RXQ_ASS_PER_REG) \ + * MSS_RXQ_ASS_OFFS) +#define MSS_RXQ_ASS_REG(q, fq) (MSS_RXQ_ASS_BASE + MSS_RXQ_ASS_PQ_BASE(q, fq)) + +#define MSS_THRESHOLD_STOP 768 +#define MSS_THRESHOLD_START 1024 +#define MSS_FC_MAX_TIMEOUT 5000 + +/* RX buffer constants */ +#define MVPP2_SKB_SHINFO_SIZE \ + SKB_DATA_ALIGN(sizeof(struct skb_shared_info)) + +#define MVPP2_RX_PKT_SIZE(mtu) \ + ALIGN((mtu) + MVPP2_MH_SIZE + MVPP2_VLAN_TAG_LEN + \ + ETH_HLEN + ETH_FCS_LEN, cache_line_size()) + +#define MVPP2_RX_BUF_SIZE(pkt_size) ((pkt_size) + MVPP2_SKB_HEADROOM) +#define MVPP2_RX_TOTAL_SIZE(buf_size) ((buf_size) + MVPP2_SKB_SHINFO_SIZE) +#define MVPP2_RX_MAX_PKT_SIZE(total_size) \ + ((total_size) - MVPP2_SKB_HEADROOM - MVPP2_SKB_SHINFO_SIZE) + +#define MVPP2_MAX_RX_BUF_SIZE (PAGE_SIZE - MVPP2_SKB_SHINFO_SIZE - MVPP2_SKB_HEADROOM) + +#define MVPP2_BIT_TO_BYTE(bit) ((bit) / 8) +#define MVPP2_BIT_TO_WORD(bit) ((bit) / 32) +#define MVPP2_BIT_IN_WORD(bit) ((bit) % 32) + +#define MVPP2_N_PRS_FLOWS 52 +#define MVPP2_N_RFS_ENTRIES_PER_FLOW 4 + +/* There are 7 supported high-level flows */ +#define MVPP2_N_RFS_RULES (MVPP2_N_RFS_ENTRIES_PER_FLOW * 7) + +/* RSS constants */ +#define MVPP22_N_RSS_TABLES 8 +#define MVPP22_RSS_TABLE_ENTRIES 32 + +/* IPv6 max L3 address size */ +#define MVPP2_MAX_L3_ADDR_SIZE 16 + +/* Port flags */ +#define MVPP2_F_LOOPBACK BIT(0) +#define MVPP2_F_DT_COMPAT BIT(1) + +/* Marvell tag types */ +enum mvpp2_tag_type { + MVPP2_TAG_TYPE_NONE = 0, + MVPP2_TAG_TYPE_MH = 1, + MVPP2_TAG_TYPE_DSA = 2, + MVPP2_TAG_TYPE_EDSA = 3, + MVPP2_TAG_TYPE_VLAN = 4, + MVPP2_TAG_TYPE_LAST = 5 +}; + +/* L2 cast enum */ +enum mvpp2_prs_l2_cast { + MVPP2_PRS_L2_UNI_CAST, + MVPP2_PRS_L2_MULTI_CAST, +}; + +/* L3 cast enum */ +enum mvpp2_prs_l3_cast { + MVPP2_PRS_L3_UNI_CAST, + MVPP2_PRS_L3_MULTI_CAST, + MVPP2_PRS_L3_BROAD_CAST +}; + +/* PTP descriptor constants. The low bits of the descriptor are stored + * separately from the high bits. + */ +#define MVPP22_PTP_DESC_MASK_LOW 0xfff + +/* PTPAction */ +enum mvpp22_ptp_action { + MVPP22_PTP_ACTION_NONE = 0, + MVPP22_PTP_ACTION_FORWARD = 1, + MVPP22_PTP_ACTION_CAPTURE = 3, + /* The following have not been verified */ + MVPP22_PTP_ACTION_ADDTIME = 4, + MVPP22_PTP_ACTION_ADDCORRECTEDTIME = 5, + MVPP22_PTP_ACTION_CAPTUREADDTIME = 6, + MVPP22_PTP_ACTION_CAPTUREADDCORRECTEDTIME = 7, + MVPP22_PTP_ACTION_ADDINGRESSTIME = 8, + MVPP22_PTP_ACTION_CAPTUREADDINGRESSTIME = 9, + MVPP22_PTP_ACTION_CAPTUREINGRESSTIME = 10, +}; + +/* PTPPacketFormat */ +enum mvpp22_ptp_packet_format { + MVPP22_PTP_PKT_FMT_PTPV2 = 0, + MVPP22_PTP_PKT_FMT_PTPV1 = 1, + MVPP22_PTP_PKT_FMT_Y1731 = 2, + MVPP22_PTP_PKT_FMT_NTPTS = 3, + MVPP22_PTP_PKT_FMT_NTPRX = 4, + MVPP22_PTP_PKT_FMT_NTPTX = 5, + MVPP22_PTP_PKT_FMT_TWAMP = 6, +}; + +#define MVPP22_PTP_ACTION(x) (((x) & 15) << 0) +#define MVPP22_PTP_PACKETFORMAT(x) (((x) & 7) << 4) +#define MVPP22_PTP_MACTIMESTAMPINGEN BIT(11) +#define MVPP22_PTP_TIMESTAMPENTRYID(x) (((x) & 31) << 12) +#define MVPP22_PTP_TIMESTAMPQUEUESELECT BIT(18) + +/* BM constants */ +#define MVPP2_BM_JUMBO_BUF_NUM 2048 +#define MVPP2_BM_LONG_BUF_NUM 2048 +#define MVPP2_BM_SHORT_BUF_NUM 2048 +#define MVPP2_BM_POOL_SIZE_MAX (16*1024 - MVPP2_BM_POOL_PTR_ALIGN/4) +#define MVPP2_BM_POOL_PTR_ALIGN 128 +#define MVPP2_BM_MAX_POOLS 8 + +/* BM cookie (32 bits) definition */ +#define MVPP2_BM_COOKIE_POOL_OFFS 8 +#define MVPP2_BM_COOKIE_CPU_OFFS 24 + +#define MVPP2_BM_SHORT_FRAME_SIZE 736 /* frame size 128 */ +#define MVPP2_BM_LONG_FRAME_SIZE 2240 /* frame size 1664 */ +#define MVPP2_BM_JUMBO_FRAME_SIZE 10432 /* frame size 9856 */ +/* BM short pool packet size + * These value assure that for SWF the total number + * of bytes allocated for each buffer will be 512 + */ +#define MVPP2_BM_SHORT_PKT_SIZE MVPP2_RX_MAX_PKT_SIZE(MVPP2_BM_SHORT_FRAME_SIZE) +#define MVPP2_BM_LONG_PKT_SIZE MVPP2_RX_MAX_PKT_SIZE(MVPP2_BM_LONG_FRAME_SIZE) +#define MVPP2_BM_JUMBO_PKT_SIZE MVPP2_RX_MAX_PKT_SIZE(MVPP2_BM_JUMBO_FRAME_SIZE) + +#define MVPP21_ADDR_SPACE_SZ 0 +#define MVPP22_ADDR_SPACE_SZ SZ_64K + +#define MVPP2_MAX_THREADS 9 +#define MVPP2_MAX_QVECS MVPP2_MAX_THREADS + +/* GMAC MIB Counters register definitions */ +#define MVPP21_MIB_COUNTERS_OFFSET 0x1000 +#define MVPP21_MIB_COUNTERS_PORT_SZ 0x400 +#define MVPP22_MIB_COUNTERS_OFFSET 0x0 +#define MVPP22_MIB_COUNTERS_PORT_SZ 0x100 + +#define MVPP2_MIB_GOOD_OCTETS_RCVD 0x0 +#define MVPP2_MIB_BAD_OCTETS_RCVD 0x8 +#define MVPP2_MIB_CRC_ERRORS_SENT 0xc +#define MVPP2_MIB_UNICAST_FRAMES_RCVD 0x10 +#define MVPP2_MIB_BROADCAST_FRAMES_RCVD 0x18 +#define MVPP2_MIB_MULTICAST_FRAMES_RCVD 0x1c +#define MVPP2_MIB_FRAMES_64_OCTETS 0x20 +#define MVPP2_MIB_FRAMES_65_TO_127_OCTETS 0x24 +#define MVPP2_MIB_FRAMES_128_TO_255_OCTETS 0x28 +#define MVPP2_MIB_FRAMES_256_TO_511_OCTETS 0x2c +#define MVPP2_MIB_FRAMES_512_TO_1023_OCTETS 0x30 +#define MVPP2_MIB_FRAMES_1024_TO_MAX_OCTETS 0x34 +#define MVPP2_MIB_GOOD_OCTETS_SENT 0x38 +#define MVPP2_MIB_UNICAST_FRAMES_SENT 0x40 +#define MVPP2_MIB_MULTICAST_FRAMES_SENT 0x48 +#define MVPP2_MIB_BROADCAST_FRAMES_SENT 0x4c +#define MVPP2_MIB_FC_SENT 0x54 +#define MVPP2_MIB_FC_RCVD 0x58 +#define MVPP2_MIB_RX_FIFO_OVERRUN 0x5c +#define MVPP2_MIB_UNDERSIZE_RCVD 0x60 +#define MVPP2_MIB_FRAGMENTS_RCVD 0x64 +#define MVPP2_MIB_OVERSIZE_RCVD 0x68 +#define MVPP2_MIB_JABBER_RCVD 0x6c +#define MVPP2_MIB_MAC_RCV_ERROR 0x70 +#define MVPP2_MIB_BAD_CRC_EVENT 0x74 +#define MVPP2_MIB_COLLISION 0x78 +#define MVPP2_MIB_LATE_COLLISION 0x7c + +#define MVPP2_MIB_COUNTERS_STATS_DELAY (1 * HZ) + +#define MVPP2_DESC_DMA_MASK DMA_BIT_MASK(40) + +/* Buffer header info bits */ +#define MVPP2_B_HDR_INFO_MC_ID_MASK 0xfff +#define MVPP2_B_HDR_INFO_MC_ID(info) ((info) & MVPP2_B_HDR_INFO_MC_ID_MASK) +#define MVPP2_B_HDR_INFO_LAST_OFFS 12 +#define MVPP2_B_HDR_INFO_LAST_MASK BIT(12) +#define MVPP2_B_HDR_INFO_IS_LAST(info) \ + (((info) & MVPP2_B_HDR_INFO_LAST_MASK) >> MVPP2_B_HDR_INFO_LAST_OFFS) + +struct mvpp2_tai; + +/* Definitions */ +struct mvpp2_dbgfs_entries; + +struct mvpp2_rss_table { + u32 indir[MVPP22_RSS_TABLE_ENTRIES]; +}; + +struct mvpp2_buff_hdr { + __le32 next_phys_addr; + __le32 next_dma_addr; + __le16 byte_count; + __le16 info; + __le16 reserved1; /* bm_qset (for future use, BM) */ + u8 next_phys_addr_high; + u8 next_dma_addr_high; + __le16 reserved2; + __le16 reserved3; + __le16 reserved4; + __le16 reserved5; +}; + +/* Shared Packet Processor resources */ +struct mvpp2 { + /* Shared registers' base addresses */ + void __iomem *lms_base; + void __iomem *iface_base; + void __iomem *cm3_base; + + /* On PPv2.2 and PPv2.3, each "software thread" can access the base + * register through a separate address space, each 64 KB apart + * from each other. Typically, such address spaces will be + * used per CPU. + */ + void __iomem *swth_base[MVPP2_MAX_THREADS]; + + /* On PPv2.2 and PPv2.3, some port control registers are located into + * the system controller space. These registers are accessible + * through a regmap. + */ + struct regmap *sysctrl_base; + + /* Common clocks */ + struct clk *pp_clk; + struct clk *gop_clk; + struct clk *mg_clk; + struct clk *mg_core_clk; + struct clk *axi_clk; + + /* List of pointers to port structures */ + int port_count; + struct mvpp2_port *port_list[MVPP2_MAX_PORTS]; + /* Map of enabled ports */ + unsigned long port_map; + + struct mvpp2_tai *tai; + + /* Number of Tx threads used */ + unsigned int nthreads; + /* Map of threads needing locking */ + unsigned long lock_map; + + /* Aggregated TXQs */ + struct mvpp2_tx_queue *aggr_txqs; + + /* Are we using page_pool with per-cpu pools? */ + int percpu_pools; + + /* BM pools */ + struct mvpp2_bm_pool *bm_pools; + + /* PRS shadow table */ + struct mvpp2_prs_shadow *prs_shadow; + /* PRS auxiliary table for double vlan entries control */ + bool *prs_double_vlans; + + /* Tclk value */ + u32 tclk; + + /* HW version */ + enum { MVPP21, MVPP22, MVPP23 } hw_version; + + /* Maximum number of RXQs per port */ + unsigned int max_port_rxqs; + + /* Workqueue to gather hardware statistics */ + char queue_name[30]; + struct workqueue_struct *stats_queue; + + /* Debugfs root entry */ + struct dentry *dbgfs_dir; + + /* Debugfs entries private data */ + struct mvpp2_dbgfs_entries *dbgfs_entries; + + /* RSS Indirection tables */ + struct mvpp2_rss_table *rss_tables[MVPP22_N_RSS_TABLES]; + + /* page_pool allocator */ + struct page_pool *page_pool[MVPP2_PORT_MAX_RXQ]; + + /* Global TX Flow Control config */ + bool global_tx_fc; + + /* Spinlocks for CM3 shared memory configuration */ + spinlock_t mss_spinlock; +}; + +struct mvpp2_pcpu_stats { + struct u64_stats_sync syncp; + u64 rx_packets; + u64 rx_bytes; + u64 tx_packets; + u64 tx_bytes; + /* XDP */ + u64 xdp_redirect; + u64 xdp_pass; + u64 xdp_drop; + u64 xdp_xmit; + u64 xdp_xmit_err; + u64 xdp_tx; + u64 xdp_tx_err; +}; + +/* Per-CPU port control */ +struct mvpp2_port_pcpu { + struct hrtimer tx_done_timer; + struct net_device *dev; + bool timer_scheduled; +}; + +struct mvpp2_queue_vector { + int irq; + struct napi_struct napi; + enum { MVPP2_QUEUE_VECTOR_SHARED, MVPP2_QUEUE_VECTOR_PRIVATE } type; + int sw_thread_id; + u16 sw_thread_mask; + int first_rxq; + int nrxqs; + u32 pending_cause_rx; + struct mvpp2_port *port; + struct cpumask *mask; +}; + +/* Internal represention of a Flow Steering rule */ +struct mvpp2_rfs_rule { + /* Rule location inside the flow*/ + int loc; + + /* Flow type, such as TCP_V4_FLOW, IP6_FLOW, etc. */ + int flow_type; + + /* Index of the C2 TCAM entry handling this rule */ + int c2_index; + + /* Header fields that needs to be extracted to match this flow */ + u16 hek_fields; + + /* CLS engine : only c2 is supported for now. */ + u8 engine; + + /* TCAM key and mask for C2-based steering. These fields should be + * encapsulated in a union should we add more engines. + */ + u64 c2_tcam; + u64 c2_tcam_mask; + + struct flow_rule *flow; +}; + +struct mvpp2_ethtool_fs { + struct mvpp2_rfs_rule rule; + struct ethtool_rxnfc rxnfc; +}; + +struct mvpp2_hwtstamp_queue { + struct sk_buff *skb[32]; + u8 next; +}; + +struct mvpp2_port { + u8 id; + + /* Index of the port from the "group of ports" complex point + * of view. This is specific to PPv2.2. + */ + int gop_id; + + int port_irq; + + struct mvpp2 *priv; + + /* Firmware node associated to the port */ + struct fwnode_handle *fwnode; + + /* Per-port registers' base address */ + void __iomem *base; + void __iomem *stats_base; + + struct mvpp2_rx_queue **rxqs; + unsigned int nrxqs; + struct mvpp2_tx_queue **txqs; + unsigned int ntxqs; + struct net_device *dev; + + struct bpf_prog *xdp_prog; + + int pkt_size; + + /* Per-CPU port control */ + struct mvpp2_port_pcpu __percpu *pcpu; + + /* Protect the BM refills and the Tx paths when a thread is used on more + * than a single CPU. + */ + spinlock_t bm_lock[MVPP2_MAX_THREADS]; + spinlock_t tx_lock[MVPP2_MAX_THREADS]; + + /* Flags */ + unsigned long flags; + + u16 tx_ring_size; + u16 rx_ring_size; + struct mvpp2_pcpu_stats __percpu *stats; + u64 *ethtool_stats; + + unsigned long state; + + /* Per-port work and its lock to gather hardware statistics */ + struct mutex gather_stats_lock; + struct delayed_work stats_work; + + struct device_node *of_node; + + phy_interface_t phy_interface; + struct phylink *phylink; + struct phylink_config phylink_config; + struct phylink_pcs pcs_gmac; + struct phylink_pcs pcs_xlg; + struct phy *comphy; + + struct mvpp2_bm_pool *pool_long; + struct mvpp2_bm_pool *pool_short; + + /* Index of first port's physical RXQ */ + u8 first_rxq; + + struct mvpp2_queue_vector qvecs[MVPP2_MAX_QVECS]; + unsigned int nqvecs; + bool has_tx_irqs; + + u32 tx_time_coal; + + /* List of steering rules active on that port */ + struct mvpp2_ethtool_fs *rfs_rules[MVPP2_N_RFS_ENTRIES_PER_FLOW]; + int n_rfs_rules; + + /* Each port has its own view of the rss contexts, so that it can number + * them from 0 + */ + int rss_ctx[MVPP22_N_RSS_TABLES]; + + bool hwtstamp; + bool rx_hwtstamp; + enum hwtstamp_tx_types tx_hwtstamp_type; + struct mvpp2_hwtstamp_queue tx_hwtstamp_queue[2]; + + /* Firmware TX flow control */ + bool tx_fc; +}; + +/* The mvpp2_tx_desc and mvpp2_rx_desc structures describe the + * layout of the transmit and reception DMA descriptors, and their + * layout is therefore defined by the hardware design + */ + +#define MVPP2_TXD_L3_OFF_SHIFT 0 +#define MVPP2_TXD_IP_HLEN_SHIFT 8 +#define MVPP2_TXD_L4_CSUM_FRAG BIT(13) +#define MVPP2_TXD_L4_CSUM_NOT BIT(14) +#define MVPP2_TXD_IP_CSUM_DISABLE BIT(15) +#define MVPP2_TXD_PADDING_DISABLE BIT(23) +#define MVPP2_TXD_L4_UDP BIT(24) +#define MVPP2_TXD_L3_IP6 BIT(26) +#define MVPP2_TXD_L_DESC BIT(28) +#define MVPP2_TXD_F_DESC BIT(29) + +#define MVPP2_RXD_ERR_SUMMARY BIT(15) +#define MVPP2_RXD_ERR_CODE_MASK (BIT(13) | BIT(14)) +#define MVPP2_RXD_ERR_CRC 0x0 +#define MVPP2_RXD_ERR_OVERRUN BIT(13) +#define MVPP2_RXD_ERR_RESOURCE (BIT(13) | BIT(14)) +#define MVPP2_RXD_BM_POOL_ID_OFFS 16 +#define MVPP2_RXD_BM_POOL_ID_MASK (BIT(16) | BIT(17) | BIT(18)) +#define MVPP2_RXD_HWF_SYNC BIT(21) +#define MVPP2_RXD_L4_CSUM_OK BIT(22) +#define MVPP2_RXD_IP4_HEADER_ERR BIT(24) +#define MVPP2_RXD_L4_TCP BIT(25) +#define MVPP2_RXD_L4_UDP BIT(26) +#define MVPP2_RXD_L3_IP4 BIT(28) +#define MVPP2_RXD_L3_IP6 BIT(30) +#define MVPP2_RXD_BUF_HDR BIT(31) + +/* HW TX descriptor for PPv2.1 */ +struct mvpp21_tx_desc { + __le32 command; /* Options used by HW for packet transmitting.*/ + u8 packet_offset; /* the offset from the buffer beginning */ + u8 phys_txq; /* destination queue ID */ + __le16 data_size; /* data size of transmitted packet in bytes */ + __le32 buf_dma_addr; /* physical addr of transmitted buffer */ + __le32 buf_cookie; /* cookie for access to TX buffer in tx path */ + __le32 reserved1[3]; /* hw_cmd (for future use, BM, PON, PNC) */ + __le32 reserved2; /* reserved (for future use) */ +}; + +/* HW RX descriptor for PPv2.1 */ +struct mvpp21_rx_desc { + __le32 status; /* info about received packet */ + __le16 reserved1; /* parser_info (for future use, PnC) */ + __le16 data_size; /* size of received packet in bytes */ + __le32 buf_dma_addr; /* physical address of the buffer */ + __le32 buf_cookie; /* cookie for access to RX buffer in rx path */ + __le16 reserved2; /* gem_port_id (for future use, PON) */ + __le16 reserved3; /* csum_l4 (for future use, PnC) */ + u8 reserved4; /* bm_qset (for future use, BM) */ + u8 reserved5; + __le16 reserved6; /* classify_info (for future use, PnC) */ + __le32 reserved7; /* flow_id (for future use, PnC) */ + __le32 reserved8; +}; + +/* HW TX descriptor for PPv2.2 and PPv2.3 */ +struct mvpp22_tx_desc { + __le32 command; + u8 packet_offset; + u8 phys_txq; + __le16 data_size; + __le32 ptp_descriptor; + __le32 reserved2; + __le64 buf_dma_addr_ptp; + __le64 buf_cookie_misc; +}; + +/* HW RX descriptor for PPv2.2 and PPv2.3 */ +struct mvpp22_rx_desc { + __le32 status; + __le16 reserved1; + __le16 data_size; + __le32 reserved2; + __le32 timestamp; + __le64 buf_dma_addr_key_hash; + __le64 buf_cookie_misc; +}; + +/* Opaque type used by the driver to manipulate the HW TX and RX + * descriptors + */ +struct mvpp2_tx_desc { + union { + struct mvpp21_tx_desc pp21; + struct mvpp22_tx_desc pp22; + }; +}; + +struct mvpp2_rx_desc { + union { + struct mvpp21_rx_desc pp21; + struct mvpp22_rx_desc pp22; + }; +}; + +enum mvpp2_tx_buf_type { + MVPP2_TYPE_SKB, + MVPP2_TYPE_XDP_TX, + MVPP2_TYPE_XDP_NDO, +}; + +struct mvpp2_txq_pcpu_buf { + enum mvpp2_tx_buf_type type; + + /* Transmitted SKB */ + union { + struct xdp_frame *xdpf; + struct sk_buff *skb; + }; + + /* Physical address of transmitted buffer */ + dma_addr_t dma; + + /* Size transmitted */ + size_t size; +}; + +/* Per-CPU Tx queue control */ +struct mvpp2_txq_pcpu { + unsigned int thread; + + /* Number of Tx DMA descriptors in the descriptor ring */ + int size; + + /* Number of currently used Tx DMA descriptor in the + * descriptor ring + */ + int count; + + int wake_threshold; + int stop_threshold; + + /* Number of Tx DMA descriptors reserved for each CPU */ + int reserved_num; + + /* Infos about transmitted buffers */ + struct mvpp2_txq_pcpu_buf *buffs; + + /* Index of last TX DMA descriptor that was inserted */ + int txq_put_index; + + /* Index of the TX DMA descriptor to be cleaned up */ + int txq_get_index; + + /* DMA buffer for TSO headers */ + char *tso_headers; + dma_addr_t tso_headers_dma; +}; + +struct mvpp2_tx_queue { + /* Physical number of this Tx queue */ + u8 id; + + /* Logical number of this Tx queue */ + u8 log_id; + + /* Number of Tx DMA descriptors in the descriptor ring */ + int size; + + /* Number of currently used Tx DMA descriptor in the descriptor ring */ + int count; + + /* Per-CPU control of physical Tx queues */ + struct mvpp2_txq_pcpu __percpu *pcpu; + + u32 done_pkts_coal; + + /* Virtual address of thex Tx DMA descriptors array */ + struct mvpp2_tx_desc *descs; + + /* DMA address of the Tx DMA descriptors array */ + dma_addr_t descs_dma; + + /* Index of the last Tx DMA descriptor */ + int last_desc; + + /* Index of the next Tx DMA descriptor to process */ + int next_desc_to_proc; +}; + +struct mvpp2_rx_queue { + /* RX queue number, in the range 0-31 for physical RXQs */ + u8 id; + + /* Num of rx descriptors in the rx descriptor ring */ + int size; + + u32 pkts_coal; + u32 time_coal; + + /* Virtual address of the RX DMA descriptors array */ + struct mvpp2_rx_desc *descs; + + /* DMA address of the RX DMA descriptors array */ + dma_addr_t descs_dma; + + /* Index of the last RX DMA descriptor */ + int last_desc; + + /* Index of the next RX DMA descriptor to process */ + int next_desc_to_proc; + + /* ID of port to which physical RXQ is mapped */ + int port; + + /* Port's logic RXQ number to which physical RXQ is mapped */ + int logic_rxq; + + /* XDP memory accounting */ + struct xdp_rxq_info xdp_rxq_short; + struct xdp_rxq_info xdp_rxq_long; +}; + +struct mvpp2_bm_pool { + /* Pool number in the range 0-7 */ + int id; + + /* Buffer Pointers Pool External (BPPE) size */ + int size; + /* BPPE size in bytes */ + int size_bytes; + /* Number of buffers for this pool */ + int buf_num; + /* Pool buffer size */ + int buf_size; + /* Packet size */ + int pkt_size; + int frag_size; + + /* BPPE virtual base address */ + u32 *virt_addr; + /* BPPE DMA base address */ + dma_addr_t dma_addr; + + /* Ports using BM pool */ + u32 port_map; +}; + +#define IS_TSO_HEADER(txq_pcpu, addr) \ + ((addr) >= (txq_pcpu)->tso_headers_dma && \ + (addr) < (txq_pcpu)->tso_headers_dma + \ + (txq_pcpu)->size * TSO_HEADER_SIZE) + +#define MVPP2_DRIVER_NAME "mvpp2" +#define MVPP2_DRIVER_VERSION "1.0" + +void mvpp2_write(struct mvpp2 *priv, u32 offset, u32 data); +u32 mvpp2_read(struct mvpp2 *priv, u32 offset); + +void mvpp2_dbgfs_init(struct mvpp2 *priv, const char *name); + +void mvpp2_dbgfs_cleanup(struct mvpp2 *priv); +void mvpp2_dbgfs_exit(void); + +void mvpp23_rx_fifo_fc_en(struct mvpp2 *priv, int port, bool en); + +#ifdef CONFIG_MVPP2_PTP +int mvpp22_tai_probe(struct device *dev, struct mvpp2 *priv); +void mvpp22_tai_tstamp(struct mvpp2_tai *tai, u32 tstamp, + struct skb_shared_hwtstamps *hwtstamp); +void mvpp22_tai_start(struct mvpp2_tai *tai); +void mvpp22_tai_stop(struct mvpp2_tai *tai); +int mvpp22_tai_ptp_clock_index(struct mvpp2_tai *tai); +#else +static inline int mvpp22_tai_probe(struct device *dev, struct mvpp2 *priv) +{ + return 0; +} +static inline void mvpp22_tai_tstamp(struct mvpp2_tai *tai, u32 tstamp, + struct skb_shared_hwtstamps *hwtstamp) +{ +} +static inline void mvpp22_tai_start(struct mvpp2_tai *tai) +{ +} +static inline void mvpp22_tai_stop(struct mvpp2_tai *tai) +{ +} +static inline int mvpp22_tai_ptp_clock_index(struct mvpp2_tai *tai) +{ + return -1; +} +#endif + +static inline bool mvpp22_rx_hwtstamping(struct mvpp2_port *port) +{ + return IS_ENABLED(CONFIG_MVPP2_PTP) && port->rx_hwtstamp; +} + +#endif diff --git a/drivers/net/ethernet/marvell/mvpp2/mvpp2_cls.c b/drivers/net/ethernet/marvell/mvpp2/mvpp2_cls.c new file mode 100644 index 000000000..40aeaa7bd --- /dev/null +++ b/drivers/net/ethernet/marvell/mvpp2/mvpp2_cls.c @@ -0,0 +1,1748 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * RSS and Classifier helpers for Marvell PPv2 Network Controller + * + * Copyright (C) 2014 Marvell + * + * Marcin Wojtas <mw@semihalf.com> + */ + +#include "mvpp2.h" +#include "mvpp2_cls.h" +#include "mvpp2_prs.h" + +#define MVPP2_DEF_FLOW(_type, _id, _opts, _ri, _ri_mask) \ +{ \ + .flow_type = _type, \ + .flow_id = _id, \ + .supported_hash_opts = _opts, \ + .prs_ri = { \ + .ri = _ri, \ + .ri_mask = _ri_mask \ + } \ +} + +static const struct mvpp2_cls_flow cls_flows[MVPP2_N_PRS_FLOWS] = { + /* TCP over IPv4 flows, Not fragmented, no vlan tag */ + MVPP2_DEF_FLOW(MVPP22_FLOW_TCP4, MVPP2_FL_IP4_TCP_NF_UNTAG, + MVPP22_CLS_HEK_IP4_5T, + MVPP2_PRS_RI_VLAN_NONE | MVPP2_PRS_RI_L3_IP4 | + MVPP2_PRS_RI_L4_TCP, + MVPP2_PRS_IP_MASK | MVPP2_PRS_RI_VLAN_MASK), + + MVPP2_DEF_FLOW(MVPP22_FLOW_TCP4, MVPP2_FL_IP4_TCP_NF_UNTAG, + MVPP22_CLS_HEK_IP4_5T, + MVPP2_PRS_RI_VLAN_NONE | MVPP2_PRS_RI_L3_IP4_OPT | + MVPP2_PRS_RI_L4_TCP, + MVPP2_PRS_IP_MASK | MVPP2_PRS_RI_VLAN_MASK), + + MVPP2_DEF_FLOW(MVPP22_FLOW_TCP4, MVPP2_FL_IP4_TCP_NF_UNTAG, + MVPP22_CLS_HEK_IP4_5T, + MVPP2_PRS_RI_VLAN_NONE | MVPP2_PRS_RI_L3_IP4_OTHER | + MVPP2_PRS_RI_L4_TCP, + MVPP2_PRS_IP_MASK | MVPP2_PRS_RI_VLAN_MASK), + + /* TCP over IPv4 flows, Not fragmented, with vlan tag */ + MVPP2_DEF_FLOW(MVPP22_FLOW_TCP4, MVPP2_FL_IP4_TCP_NF_TAG, + MVPP22_CLS_HEK_IP4_5T | MVPP22_CLS_HEK_TAGGED, + MVPP2_PRS_RI_L3_IP4 | MVPP2_PRS_RI_L4_TCP, + MVPP2_PRS_IP_MASK), + + MVPP2_DEF_FLOW(MVPP22_FLOW_TCP4, MVPP2_FL_IP4_TCP_NF_TAG, + MVPP22_CLS_HEK_IP4_5T | MVPP22_CLS_HEK_TAGGED, + MVPP2_PRS_RI_L3_IP4_OPT | MVPP2_PRS_RI_L4_TCP, + MVPP2_PRS_IP_MASK), + + MVPP2_DEF_FLOW(MVPP22_FLOW_TCP4, MVPP2_FL_IP4_TCP_NF_TAG, + MVPP22_CLS_HEK_IP4_5T | MVPP22_CLS_HEK_TAGGED, + MVPP2_PRS_RI_L3_IP4_OTHER | MVPP2_PRS_RI_L4_TCP, + MVPP2_PRS_IP_MASK), + + /* TCP over IPv4 flows, fragmented, no vlan tag */ + MVPP2_DEF_FLOW(MVPP22_FLOW_TCP4, MVPP2_FL_IP4_TCP_FRAG_UNTAG, + MVPP22_CLS_HEK_IP4_2T, + MVPP2_PRS_RI_VLAN_NONE | MVPP2_PRS_RI_L3_IP4 | + MVPP2_PRS_RI_IP_FRAG_TRUE | MVPP2_PRS_RI_L4_TCP, + MVPP2_PRS_IP_MASK | MVPP2_PRS_RI_VLAN_MASK), + + MVPP2_DEF_FLOW(MVPP22_FLOW_TCP4, MVPP2_FL_IP4_TCP_FRAG_UNTAG, + MVPP22_CLS_HEK_IP4_2T, + MVPP2_PRS_RI_VLAN_NONE | MVPP2_PRS_RI_L3_IP4_OPT | + MVPP2_PRS_RI_IP_FRAG_TRUE | MVPP2_PRS_RI_L4_TCP, + MVPP2_PRS_IP_MASK | MVPP2_PRS_RI_VLAN_MASK), + + MVPP2_DEF_FLOW(MVPP22_FLOW_TCP4, MVPP2_FL_IP4_TCP_FRAG_UNTAG, + MVPP22_CLS_HEK_IP4_2T, + MVPP2_PRS_RI_VLAN_NONE | MVPP2_PRS_RI_L3_IP4_OTHER | + MVPP2_PRS_RI_IP_FRAG_TRUE | MVPP2_PRS_RI_L4_TCP, + MVPP2_PRS_IP_MASK | MVPP2_PRS_RI_VLAN_MASK), + + /* TCP over IPv4 flows, fragmented, with vlan tag */ + MVPP2_DEF_FLOW(MVPP22_FLOW_TCP4, MVPP2_FL_IP4_TCP_FRAG_TAG, + MVPP22_CLS_HEK_IP4_2T | MVPP22_CLS_HEK_TAGGED, + MVPP2_PRS_RI_L3_IP4 | MVPP2_PRS_RI_IP_FRAG_TRUE | + MVPP2_PRS_RI_L4_TCP, + MVPP2_PRS_IP_MASK), + + MVPP2_DEF_FLOW(MVPP22_FLOW_TCP4, MVPP2_FL_IP4_TCP_FRAG_TAG, + MVPP22_CLS_HEK_IP4_2T | MVPP22_CLS_HEK_TAGGED, + MVPP2_PRS_RI_L3_IP4_OPT | MVPP2_PRS_RI_IP_FRAG_TRUE | + MVPP2_PRS_RI_L4_TCP, + MVPP2_PRS_IP_MASK), + + MVPP2_DEF_FLOW(MVPP22_FLOW_TCP4, MVPP2_FL_IP4_TCP_FRAG_TAG, + MVPP22_CLS_HEK_IP4_2T | MVPP22_CLS_HEK_TAGGED, + MVPP2_PRS_RI_L3_IP4_OTHER | MVPP2_PRS_RI_IP_FRAG_TRUE | + MVPP2_PRS_RI_L4_TCP, + MVPP2_PRS_IP_MASK), + + /* UDP over IPv4 flows, Not fragmented, no vlan tag */ + MVPP2_DEF_FLOW(MVPP22_FLOW_UDP4, MVPP2_FL_IP4_UDP_NF_UNTAG, + MVPP22_CLS_HEK_IP4_5T, + MVPP2_PRS_RI_VLAN_NONE | MVPP2_PRS_RI_L3_IP4 | + MVPP2_PRS_RI_L4_UDP, + MVPP2_PRS_IP_MASK | MVPP2_PRS_RI_VLAN_MASK), + + MVPP2_DEF_FLOW(MVPP22_FLOW_UDP4, MVPP2_FL_IP4_UDP_NF_UNTAG, + MVPP22_CLS_HEK_IP4_5T, + MVPP2_PRS_RI_VLAN_NONE | MVPP2_PRS_RI_L3_IP4_OPT | + MVPP2_PRS_RI_L4_UDP, + MVPP2_PRS_IP_MASK | MVPP2_PRS_RI_VLAN_MASK), + + MVPP2_DEF_FLOW(MVPP22_FLOW_UDP4, MVPP2_FL_IP4_UDP_NF_UNTAG, + MVPP22_CLS_HEK_IP4_5T, + MVPP2_PRS_RI_VLAN_NONE | MVPP2_PRS_RI_L3_IP4_OTHER | + MVPP2_PRS_RI_L4_UDP, + MVPP2_PRS_IP_MASK | MVPP2_PRS_RI_VLAN_MASK), + + /* UDP over IPv4 flows, Not fragmented, with vlan tag */ + MVPP2_DEF_FLOW(MVPP22_FLOW_UDP4, MVPP2_FL_IP4_UDP_NF_TAG, + MVPP22_CLS_HEK_IP4_5T | MVPP22_CLS_HEK_TAGGED, + MVPP2_PRS_RI_L3_IP4 | MVPP2_PRS_RI_L4_UDP, + MVPP2_PRS_IP_MASK), + + MVPP2_DEF_FLOW(MVPP22_FLOW_UDP4, MVPP2_FL_IP4_UDP_NF_TAG, + MVPP22_CLS_HEK_IP4_5T | MVPP22_CLS_HEK_TAGGED, + MVPP2_PRS_RI_L3_IP4_OPT | MVPP2_PRS_RI_L4_UDP, + MVPP2_PRS_IP_MASK), + + MVPP2_DEF_FLOW(MVPP22_FLOW_UDP4, MVPP2_FL_IP4_UDP_NF_TAG, + MVPP22_CLS_HEK_IP4_5T | MVPP22_CLS_HEK_TAGGED, + MVPP2_PRS_RI_L3_IP4_OTHER | MVPP2_PRS_RI_L4_UDP, + MVPP2_PRS_IP_MASK), + + /* UDP over IPv4 flows, fragmented, no vlan tag */ + MVPP2_DEF_FLOW(MVPP22_FLOW_UDP4, MVPP2_FL_IP4_UDP_FRAG_UNTAG, + MVPP22_CLS_HEK_IP4_2T, + MVPP2_PRS_RI_VLAN_NONE | MVPP2_PRS_RI_L3_IP4 | + MVPP2_PRS_RI_IP_FRAG_TRUE | MVPP2_PRS_RI_L4_UDP, + MVPP2_PRS_IP_MASK | MVPP2_PRS_RI_VLAN_MASK), + + MVPP2_DEF_FLOW(MVPP22_FLOW_UDP4, MVPP2_FL_IP4_UDP_FRAG_UNTAG, + MVPP22_CLS_HEK_IP4_2T, + MVPP2_PRS_RI_VLAN_NONE | MVPP2_PRS_RI_L3_IP4_OPT | + MVPP2_PRS_RI_IP_FRAG_TRUE | MVPP2_PRS_RI_L4_UDP, + MVPP2_PRS_IP_MASK | MVPP2_PRS_RI_VLAN_MASK), + + MVPP2_DEF_FLOW(MVPP22_FLOW_UDP4, MVPP2_FL_IP4_UDP_FRAG_UNTAG, + MVPP22_CLS_HEK_IP4_2T, + MVPP2_PRS_RI_VLAN_NONE | MVPP2_PRS_RI_L3_IP4_OTHER | + MVPP2_PRS_RI_IP_FRAG_TRUE | MVPP2_PRS_RI_L4_UDP, + MVPP2_PRS_IP_MASK | MVPP2_PRS_RI_VLAN_MASK), + + /* UDP over IPv4 flows, fragmented, with vlan tag */ + MVPP2_DEF_FLOW(MVPP22_FLOW_UDP4, MVPP2_FL_IP4_UDP_FRAG_TAG, + MVPP22_CLS_HEK_IP4_2T | MVPP22_CLS_HEK_TAGGED, + MVPP2_PRS_RI_L3_IP4 | MVPP2_PRS_RI_IP_FRAG_TRUE | + MVPP2_PRS_RI_L4_UDP, + MVPP2_PRS_IP_MASK), + + MVPP2_DEF_FLOW(MVPP22_FLOW_UDP4, MVPP2_FL_IP4_UDP_FRAG_TAG, + MVPP22_CLS_HEK_IP4_2T | MVPP22_CLS_HEK_TAGGED, + MVPP2_PRS_RI_L3_IP4_OPT | MVPP2_PRS_RI_IP_FRAG_TRUE | + MVPP2_PRS_RI_L4_UDP, + MVPP2_PRS_IP_MASK), + + MVPP2_DEF_FLOW(MVPP22_FLOW_UDP4, MVPP2_FL_IP4_UDP_FRAG_TAG, + MVPP22_CLS_HEK_IP4_2T | MVPP22_CLS_HEK_TAGGED, + MVPP2_PRS_RI_L3_IP4_OTHER | MVPP2_PRS_RI_IP_FRAG_TRUE | + MVPP2_PRS_RI_L4_UDP, + MVPP2_PRS_IP_MASK), + + /* TCP over IPv6 flows, not fragmented, no vlan tag */ + MVPP2_DEF_FLOW(MVPP22_FLOW_TCP6, MVPP2_FL_IP6_TCP_NF_UNTAG, + MVPP22_CLS_HEK_IP6_5T, + MVPP2_PRS_RI_VLAN_NONE | MVPP2_PRS_RI_L3_IP6 | + MVPP2_PRS_RI_L4_TCP, + MVPP2_PRS_IP_MASK | MVPP2_PRS_RI_VLAN_MASK), + + MVPP2_DEF_FLOW(MVPP22_FLOW_TCP6, MVPP2_FL_IP6_TCP_NF_UNTAG, + MVPP22_CLS_HEK_IP6_5T, + MVPP2_PRS_RI_VLAN_NONE | MVPP2_PRS_RI_L3_IP6_EXT | + MVPP2_PRS_RI_L4_TCP, + MVPP2_PRS_IP_MASK | MVPP2_PRS_RI_VLAN_MASK), + + /* TCP over IPv6 flows, not fragmented, with vlan tag */ + MVPP2_DEF_FLOW(MVPP22_FLOW_TCP6, MVPP2_FL_IP6_TCP_NF_TAG, + MVPP22_CLS_HEK_IP6_5T | MVPP22_CLS_HEK_TAGGED, + MVPP2_PRS_RI_L3_IP6 | MVPP2_PRS_RI_L4_TCP, + MVPP2_PRS_IP_MASK), + + MVPP2_DEF_FLOW(MVPP22_FLOW_TCP6, MVPP2_FL_IP6_TCP_NF_TAG, + MVPP22_CLS_HEK_IP6_5T | MVPP22_CLS_HEK_TAGGED, + MVPP2_PRS_RI_L3_IP6_EXT | MVPP2_PRS_RI_L4_TCP, + MVPP2_PRS_IP_MASK), + + /* TCP over IPv6 flows, fragmented, no vlan tag */ + MVPP2_DEF_FLOW(MVPP22_FLOW_TCP6, MVPP2_FL_IP6_TCP_FRAG_UNTAG, + MVPP22_CLS_HEK_IP6_2T, + MVPP2_PRS_RI_VLAN_NONE | MVPP2_PRS_RI_L3_IP6 | + MVPP2_PRS_RI_IP_FRAG_TRUE | MVPP2_PRS_RI_L4_TCP, + MVPP2_PRS_IP_MASK | MVPP2_PRS_RI_VLAN_MASK), + + MVPP2_DEF_FLOW(MVPP22_FLOW_TCP6, MVPP2_FL_IP6_TCP_FRAG_UNTAG, + MVPP22_CLS_HEK_IP6_2T, + MVPP2_PRS_RI_VLAN_NONE | MVPP2_PRS_RI_L3_IP6_EXT | + MVPP2_PRS_RI_IP_FRAG_TRUE | MVPP2_PRS_RI_L4_TCP, + MVPP2_PRS_IP_MASK | MVPP2_PRS_RI_VLAN_MASK), + + /* TCP over IPv6 flows, fragmented, with vlan tag */ + MVPP2_DEF_FLOW(MVPP22_FLOW_TCP6, MVPP2_FL_IP6_TCP_FRAG_TAG, + MVPP22_CLS_HEK_IP6_2T | MVPP22_CLS_HEK_TAGGED, + MVPP2_PRS_RI_L3_IP6 | MVPP2_PRS_RI_IP_FRAG_TRUE | + MVPP2_PRS_RI_L4_TCP, + MVPP2_PRS_IP_MASK), + + MVPP2_DEF_FLOW(MVPP22_FLOW_TCP6, MVPP2_FL_IP6_TCP_FRAG_TAG, + MVPP22_CLS_HEK_IP6_2T | MVPP22_CLS_HEK_TAGGED, + MVPP2_PRS_RI_L3_IP6_EXT | MVPP2_PRS_RI_IP_FRAG_TRUE | + MVPP2_PRS_RI_L4_TCP, + MVPP2_PRS_IP_MASK), + + /* UDP over IPv6 flows, not fragmented, no vlan tag */ + MVPP2_DEF_FLOW(MVPP22_FLOW_UDP6, MVPP2_FL_IP6_UDP_NF_UNTAG, + MVPP22_CLS_HEK_IP6_5T, + MVPP2_PRS_RI_VLAN_NONE | MVPP2_PRS_RI_L3_IP6 | + MVPP2_PRS_RI_L4_UDP, + MVPP2_PRS_IP_MASK | MVPP2_PRS_RI_VLAN_MASK), + + MVPP2_DEF_FLOW(MVPP22_FLOW_UDP6, MVPP2_FL_IP6_UDP_NF_UNTAG, + MVPP22_CLS_HEK_IP6_5T, + MVPP2_PRS_RI_VLAN_NONE | MVPP2_PRS_RI_L3_IP6_EXT | + MVPP2_PRS_RI_L4_UDP, + MVPP2_PRS_IP_MASK | MVPP2_PRS_RI_VLAN_MASK), + + /* UDP over IPv6 flows, not fragmented, with vlan tag */ + MVPP2_DEF_FLOW(MVPP22_FLOW_UDP6, MVPP2_FL_IP6_UDP_NF_TAG, + MVPP22_CLS_HEK_IP6_5T | MVPP22_CLS_HEK_TAGGED, + MVPP2_PRS_RI_L3_IP6 | MVPP2_PRS_RI_L4_UDP, + MVPP2_PRS_IP_MASK), + + MVPP2_DEF_FLOW(MVPP22_FLOW_UDP6, MVPP2_FL_IP6_UDP_NF_TAG, + MVPP22_CLS_HEK_IP6_5T | MVPP22_CLS_HEK_TAGGED, + MVPP2_PRS_RI_L3_IP6_EXT | MVPP2_PRS_RI_L4_UDP, + MVPP2_PRS_IP_MASK), + + /* UDP over IPv6 flows, fragmented, no vlan tag */ + MVPP2_DEF_FLOW(MVPP22_FLOW_UDP6, MVPP2_FL_IP6_UDP_FRAG_UNTAG, + MVPP22_CLS_HEK_IP6_2T, + MVPP2_PRS_RI_VLAN_NONE | MVPP2_PRS_RI_L3_IP6 | + MVPP2_PRS_RI_IP_FRAG_TRUE | MVPP2_PRS_RI_L4_UDP, + MVPP2_PRS_IP_MASK | MVPP2_PRS_RI_VLAN_MASK), + + MVPP2_DEF_FLOW(MVPP22_FLOW_UDP6, MVPP2_FL_IP6_UDP_FRAG_UNTAG, + MVPP22_CLS_HEK_IP6_2T, + MVPP2_PRS_RI_VLAN_NONE | MVPP2_PRS_RI_L3_IP6_EXT | + MVPP2_PRS_RI_IP_FRAG_TRUE | MVPP2_PRS_RI_L4_UDP, + MVPP2_PRS_IP_MASK | MVPP2_PRS_RI_VLAN_MASK), + + /* UDP over IPv6 flows, fragmented, with vlan tag */ + MVPP2_DEF_FLOW(MVPP22_FLOW_UDP6, MVPP2_FL_IP6_UDP_FRAG_TAG, + MVPP22_CLS_HEK_IP6_2T | MVPP22_CLS_HEK_TAGGED, + MVPP2_PRS_RI_L3_IP6 | MVPP2_PRS_RI_IP_FRAG_TRUE | + MVPP2_PRS_RI_L4_UDP, + MVPP2_PRS_IP_MASK), + + MVPP2_DEF_FLOW(MVPP22_FLOW_UDP6, MVPP2_FL_IP6_UDP_FRAG_TAG, + MVPP22_CLS_HEK_IP6_2T | MVPP22_CLS_HEK_TAGGED, + MVPP2_PRS_RI_L3_IP6_EXT | MVPP2_PRS_RI_IP_FRAG_TRUE | + MVPP2_PRS_RI_L4_UDP, + MVPP2_PRS_IP_MASK), + + /* IPv4 flows, no vlan tag */ + MVPP2_DEF_FLOW(MVPP22_FLOW_IP4, MVPP2_FL_IP4_UNTAG, + MVPP22_CLS_HEK_IP4_2T, + MVPP2_PRS_RI_VLAN_NONE | MVPP2_PRS_RI_L3_IP4, + MVPP2_PRS_RI_VLAN_MASK | MVPP2_PRS_RI_L3_PROTO_MASK), + MVPP2_DEF_FLOW(MVPP22_FLOW_IP4, MVPP2_FL_IP4_UNTAG, + MVPP22_CLS_HEK_IP4_2T, + MVPP2_PRS_RI_VLAN_NONE | MVPP2_PRS_RI_L3_IP4_OPT, + MVPP2_PRS_RI_VLAN_MASK | MVPP2_PRS_RI_L3_PROTO_MASK), + MVPP2_DEF_FLOW(MVPP22_FLOW_IP4, MVPP2_FL_IP4_UNTAG, + MVPP22_CLS_HEK_IP4_2T, + MVPP2_PRS_RI_VLAN_NONE | MVPP2_PRS_RI_L3_IP4_OTHER, + MVPP2_PRS_RI_VLAN_MASK | MVPP2_PRS_RI_L3_PROTO_MASK), + + /* IPv4 flows, with vlan tag */ + MVPP2_DEF_FLOW(MVPP22_FLOW_IP4, MVPP2_FL_IP4_TAG, + MVPP22_CLS_HEK_IP4_2T | MVPP22_CLS_HEK_TAGGED, + MVPP2_PRS_RI_L3_IP4, + MVPP2_PRS_RI_L3_PROTO_MASK), + MVPP2_DEF_FLOW(MVPP22_FLOW_IP4, MVPP2_FL_IP4_TAG, + MVPP22_CLS_HEK_IP4_2T | MVPP22_CLS_HEK_TAGGED, + MVPP2_PRS_RI_L3_IP4_OPT, + MVPP2_PRS_RI_L3_PROTO_MASK), + MVPP2_DEF_FLOW(MVPP22_FLOW_IP4, MVPP2_FL_IP4_TAG, + MVPP22_CLS_HEK_IP4_2T | MVPP22_CLS_HEK_TAGGED, + MVPP2_PRS_RI_L3_IP4_OTHER, + MVPP2_PRS_RI_L3_PROTO_MASK), + + /* IPv6 flows, no vlan tag */ + MVPP2_DEF_FLOW(MVPP22_FLOW_IP6, MVPP2_FL_IP6_UNTAG, + MVPP22_CLS_HEK_IP6_2T, + MVPP2_PRS_RI_VLAN_NONE | MVPP2_PRS_RI_L3_IP6, + MVPP2_PRS_RI_VLAN_MASK | MVPP2_PRS_RI_L3_PROTO_MASK), + MVPP2_DEF_FLOW(MVPP22_FLOW_IP6, MVPP2_FL_IP6_UNTAG, + MVPP22_CLS_HEK_IP6_2T, + MVPP2_PRS_RI_VLAN_NONE | MVPP2_PRS_RI_L3_IP6, + MVPP2_PRS_RI_VLAN_MASK | MVPP2_PRS_RI_L3_PROTO_MASK), + + /* IPv6 flows, with vlan tag */ + MVPP2_DEF_FLOW(MVPP22_FLOW_IP6, MVPP2_FL_IP6_TAG, + MVPP22_CLS_HEK_IP6_2T | MVPP22_CLS_HEK_TAGGED, + MVPP2_PRS_RI_L3_IP6, + MVPP2_PRS_RI_L3_PROTO_MASK), + MVPP2_DEF_FLOW(MVPP22_FLOW_IP6, MVPP2_FL_IP6_TAG, + MVPP22_CLS_HEK_IP6_2T | MVPP22_CLS_HEK_TAGGED, + MVPP2_PRS_RI_L3_IP6, + MVPP2_PRS_RI_L3_PROTO_MASK), + + /* Non IP flow, no vlan tag */ + MVPP2_DEF_FLOW(MVPP22_FLOW_ETHERNET, MVPP2_FL_NON_IP_UNTAG, + 0, + MVPP2_PRS_RI_VLAN_NONE, + MVPP2_PRS_RI_VLAN_MASK), + /* Non IP flow, with vlan tag */ + MVPP2_DEF_FLOW(MVPP22_FLOW_ETHERNET, MVPP2_FL_NON_IP_TAG, + MVPP22_CLS_HEK_OPT_VLAN, + 0, 0), +}; + +u32 mvpp2_cls_flow_hits(struct mvpp2 *priv, int index) +{ + mvpp2_write(priv, MVPP2_CTRS_IDX, index); + + return mvpp2_read(priv, MVPP2_CLS_FLOW_TBL_HIT_CTR); +} + +void mvpp2_cls_flow_read(struct mvpp2 *priv, int index, + struct mvpp2_cls_flow_entry *fe) +{ + fe->index = index; + mvpp2_write(priv, MVPP2_CLS_FLOW_INDEX_REG, index); + fe->data[0] = mvpp2_read(priv, MVPP2_CLS_FLOW_TBL0_REG); + fe->data[1] = mvpp2_read(priv, MVPP2_CLS_FLOW_TBL1_REG); + fe->data[2] = mvpp2_read(priv, MVPP2_CLS_FLOW_TBL2_REG); +} + +/* Update classification flow table registers */ +static void mvpp2_cls_flow_write(struct mvpp2 *priv, + struct mvpp2_cls_flow_entry *fe) +{ + mvpp2_write(priv, MVPP2_CLS_FLOW_INDEX_REG, fe->index); + mvpp2_write(priv, MVPP2_CLS_FLOW_TBL0_REG, fe->data[0]); + mvpp2_write(priv, MVPP2_CLS_FLOW_TBL1_REG, fe->data[1]); + mvpp2_write(priv, MVPP2_CLS_FLOW_TBL2_REG, fe->data[2]); +} + +u32 mvpp2_cls_lookup_hits(struct mvpp2 *priv, int index) +{ + mvpp2_write(priv, MVPP2_CTRS_IDX, index); + + return mvpp2_read(priv, MVPP2_CLS_DEC_TBL_HIT_CTR); +} + +void mvpp2_cls_lookup_read(struct mvpp2 *priv, int lkpid, int way, + struct mvpp2_cls_lookup_entry *le) +{ + u32 val; + + val = (way << MVPP2_CLS_LKP_INDEX_WAY_OFFS) | lkpid; + mvpp2_write(priv, MVPP2_CLS_LKP_INDEX_REG, val); + le->way = way; + le->lkpid = lkpid; + le->data = mvpp2_read(priv, MVPP2_CLS_LKP_TBL_REG); +} + +/* Update classification lookup table register */ +static void mvpp2_cls_lookup_write(struct mvpp2 *priv, + struct mvpp2_cls_lookup_entry *le) +{ + u32 val; + + val = (le->way << MVPP2_CLS_LKP_INDEX_WAY_OFFS) | le->lkpid; + mvpp2_write(priv, MVPP2_CLS_LKP_INDEX_REG, val); + mvpp2_write(priv, MVPP2_CLS_LKP_TBL_REG, le->data); +} + +/* Operations on flow entry */ +static int mvpp2_cls_flow_hek_num_get(struct mvpp2_cls_flow_entry *fe) +{ + return fe->data[1] & MVPP2_CLS_FLOW_TBL1_N_FIELDS_MASK; +} + +static void mvpp2_cls_flow_hek_num_set(struct mvpp2_cls_flow_entry *fe, + int num_of_fields) +{ + fe->data[1] &= ~MVPP2_CLS_FLOW_TBL1_N_FIELDS_MASK; + fe->data[1] |= MVPP2_CLS_FLOW_TBL1_N_FIELDS(num_of_fields); +} + +static int mvpp2_cls_flow_hek_get(struct mvpp2_cls_flow_entry *fe, + int field_index) +{ + return (fe->data[2] >> MVPP2_CLS_FLOW_TBL2_FLD_OFFS(field_index)) & + MVPP2_CLS_FLOW_TBL2_FLD_MASK; +} + +static void mvpp2_cls_flow_hek_set(struct mvpp2_cls_flow_entry *fe, + int field_index, int field_id) +{ + fe->data[2] &= ~MVPP2_CLS_FLOW_TBL2_FLD(field_index, + MVPP2_CLS_FLOW_TBL2_FLD_MASK); + fe->data[2] |= MVPP2_CLS_FLOW_TBL2_FLD(field_index, field_id); +} + +static void mvpp2_cls_flow_eng_set(struct mvpp2_cls_flow_entry *fe, + int engine) +{ + fe->data[0] &= ~MVPP2_CLS_FLOW_TBL0_ENG(MVPP2_CLS_FLOW_TBL0_ENG_MASK); + fe->data[0] |= MVPP2_CLS_FLOW_TBL0_ENG(engine); +} + +int mvpp2_cls_flow_eng_get(struct mvpp2_cls_flow_entry *fe) +{ + return (fe->data[0] >> MVPP2_CLS_FLOW_TBL0_OFFS) & + MVPP2_CLS_FLOW_TBL0_ENG_MASK; +} + +static void mvpp2_cls_flow_port_id_sel(struct mvpp2_cls_flow_entry *fe, + bool from_packet) +{ + if (from_packet) + fe->data[0] |= MVPP2_CLS_FLOW_TBL0_PORT_ID_SEL; + else + fe->data[0] &= ~MVPP2_CLS_FLOW_TBL0_PORT_ID_SEL; +} + +static void mvpp2_cls_flow_last_set(struct mvpp2_cls_flow_entry *fe, + bool is_last) +{ + fe->data[0] &= ~MVPP2_CLS_FLOW_TBL0_LAST; + fe->data[0] |= !!is_last; +} + +static void mvpp2_cls_flow_pri_set(struct mvpp2_cls_flow_entry *fe, int prio) +{ + fe->data[1] &= ~MVPP2_CLS_FLOW_TBL1_PRIO(MVPP2_CLS_FLOW_TBL1_PRIO_MASK); + fe->data[1] |= MVPP2_CLS_FLOW_TBL1_PRIO(prio); +} + +static void mvpp2_cls_flow_port_add(struct mvpp2_cls_flow_entry *fe, + u32 port) +{ + fe->data[0] |= MVPP2_CLS_FLOW_TBL0_PORT_ID(port); +} + +static void mvpp2_cls_flow_port_remove(struct mvpp2_cls_flow_entry *fe, + u32 port) +{ + fe->data[0] &= ~MVPP2_CLS_FLOW_TBL0_PORT_ID(port); +} + +static void mvpp2_cls_flow_lu_type_set(struct mvpp2_cls_flow_entry *fe, + u8 lu_type) +{ + fe->data[1] &= ~MVPP2_CLS_FLOW_TBL1_LU_TYPE(MVPP2_CLS_LU_TYPE_MASK); + fe->data[1] |= MVPP2_CLS_FLOW_TBL1_LU_TYPE(lu_type); +} + +/* Initialize the parser entry for the given flow */ +static void mvpp2_cls_flow_prs_init(struct mvpp2 *priv, + const struct mvpp2_cls_flow *flow) +{ + mvpp2_prs_add_flow(priv, flow->flow_id, flow->prs_ri.ri, + flow->prs_ri.ri_mask); +} + +/* Initialize the Lookup Id table entry for the given flow */ +static void mvpp2_cls_flow_lkp_init(struct mvpp2 *priv, + const struct mvpp2_cls_flow *flow) +{ + struct mvpp2_cls_lookup_entry le; + + le.way = 0; + le.lkpid = flow->flow_id; + + /* The default RxQ for this port is set in the C2 lookup */ + le.data = 0; + + /* We point on the first lookup in the sequence for the flow, that is + * the C2 lookup. + */ + le.data |= MVPP2_CLS_LKP_FLOW_PTR(MVPP2_CLS_FLT_FIRST(flow->flow_id)); + + /* CLS is always enabled, RSS is enabled/disabled in C2 lookup */ + le.data |= MVPP2_CLS_LKP_TBL_LOOKUP_EN_MASK; + + mvpp2_cls_lookup_write(priv, &le); +} + +static void mvpp2_cls_c2_write(struct mvpp2 *priv, + struct mvpp2_cls_c2_entry *c2) +{ + u32 val; + mvpp2_write(priv, MVPP22_CLS_C2_TCAM_IDX, c2->index); + + val = mvpp2_read(priv, MVPP22_CLS_C2_TCAM_INV); + if (c2->valid) + val &= ~MVPP22_CLS_C2_TCAM_INV_BIT; + else + val |= MVPP22_CLS_C2_TCAM_INV_BIT; + mvpp2_write(priv, MVPP22_CLS_C2_TCAM_INV, val); + + mvpp2_write(priv, MVPP22_CLS_C2_ACT, c2->act); + + mvpp2_write(priv, MVPP22_CLS_C2_ATTR0, c2->attr[0]); + mvpp2_write(priv, MVPP22_CLS_C2_ATTR1, c2->attr[1]); + mvpp2_write(priv, MVPP22_CLS_C2_ATTR2, c2->attr[2]); + mvpp2_write(priv, MVPP22_CLS_C2_ATTR3, c2->attr[3]); + + mvpp2_write(priv, MVPP22_CLS_C2_TCAM_DATA0, c2->tcam[0]); + mvpp2_write(priv, MVPP22_CLS_C2_TCAM_DATA1, c2->tcam[1]); + mvpp2_write(priv, MVPP22_CLS_C2_TCAM_DATA2, c2->tcam[2]); + mvpp2_write(priv, MVPP22_CLS_C2_TCAM_DATA3, c2->tcam[3]); + /* Writing TCAM_DATA4 flushes writes to TCAM_DATA0-4 and INV to HW */ + mvpp2_write(priv, MVPP22_CLS_C2_TCAM_DATA4, c2->tcam[4]); +} + +void mvpp2_cls_c2_read(struct mvpp2 *priv, int index, + struct mvpp2_cls_c2_entry *c2) +{ + u32 val; + mvpp2_write(priv, MVPP22_CLS_C2_TCAM_IDX, index); + + c2->index = index; + + c2->tcam[0] = mvpp2_read(priv, MVPP22_CLS_C2_TCAM_DATA0); + c2->tcam[1] = mvpp2_read(priv, MVPP22_CLS_C2_TCAM_DATA1); + c2->tcam[2] = mvpp2_read(priv, MVPP22_CLS_C2_TCAM_DATA2); + c2->tcam[3] = mvpp2_read(priv, MVPP22_CLS_C2_TCAM_DATA3); + c2->tcam[4] = mvpp2_read(priv, MVPP22_CLS_C2_TCAM_DATA4); + + c2->act = mvpp2_read(priv, MVPP22_CLS_C2_ACT); + + c2->attr[0] = mvpp2_read(priv, MVPP22_CLS_C2_ATTR0); + c2->attr[1] = mvpp2_read(priv, MVPP22_CLS_C2_ATTR1); + c2->attr[2] = mvpp2_read(priv, MVPP22_CLS_C2_ATTR2); + c2->attr[3] = mvpp2_read(priv, MVPP22_CLS_C2_ATTR3); + + val = mvpp2_read(priv, MVPP22_CLS_C2_TCAM_INV); + c2->valid = !(val & MVPP22_CLS_C2_TCAM_INV_BIT); +} + +static int mvpp2_cls_ethtool_flow_to_type(int flow_type) +{ + switch (flow_type & ~(FLOW_EXT | FLOW_MAC_EXT | FLOW_RSS)) { + case ETHER_FLOW: + return MVPP22_FLOW_ETHERNET; + case TCP_V4_FLOW: + return MVPP22_FLOW_TCP4; + case TCP_V6_FLOW: + return MVPP22_FLOW_TCP6; + case UDP_V4_FLOW: + return MVPP22_FLOW_UDP4; + case UDP_V6_FLOW: + return MVPP22_FLOW_UDP6; + case IPV4_FLOW: + return MVPP22_FLOW_IP4; + case IPV6_FLOW: + return MVPP22_FLOW_IP6; + default: + return -EOPNOTSUPP; + } +} + +static int mvpp2_cls_c2_port_flow_index(struct mvpp2_port *port, int loc) +{ + return MVPP22_CLS_C2_RFS_LOC(port->id, loc); +} + +/* Initialize the flow table entries for the given flow */ +static void mvpp2_cls_flow_init(struct mvpp2 *priv, + const struct mvpp2_cls_flow *flow) +{ + struct mvpp2_cls_flow_entry fe; + int i, pri = 0; + + /* Assign default values to all entries in the flow */ + for (i = MVPP2_CLS_FLT_FIRST(flow->flow_id); + i <= MVPP2_CLS_FLT_LAST(flow->flow_id); i++) { + memset(&fe, 0, sizeof(fe)); + fe.index = i; + mvpp2_cls_flow_pri_set(&fe, pri++); + + if (i == MVPP2_CLS_FLT_LAST(flow->flow_id)) + mvpp2_cls_flow_last_set(&fe, 1); + + mvpp2_cls_flow_write(priv, &fe); + } + + /* RSS config C2 lookup */ + mvpp2_cls_flow_read(priv, MVPP2_CLS_FLT_C2_RSS_ENTRY(flow->flow_id), + &fe); + + mvpp2_cls_flow_eng_set(&fe, MVPP22_CLS_ENGINE_C2); + mvpp2_cls_flow_port_id_sel(&fe, true); + mvpp2_cls_flow_lu_type_set(&fe, MVPP22_CLS_LU_TYPE_ALL); + + /* Add all ports */ + for (i = 0; i < MVPP2_MAX_PORTS; i++) + mvpp2_cls_flow_port_add(&fe, BIT(i)); + + mvpp2_cls_flow_write(priv, &fe); + + /* C3Hx lookups */ + for (i = 0; i < MVPP2_MAX_PORTS; i++) { + mvpp2_cls_flow_read(priv, + MVPP2_CLS_FLT_HASH_ENTRY(i, flow->flow_id), + &fe); + + /* Set a default engine. Will be overwritten when setting the + * real HEK parameters + */ + mvpp2_cls_flow_eng_set(&fe, MVPP22_CLS_ENGINE_C3HA); + mvpp2_cls_flow_port_id_sel(&fe, true); + mvpp2_cls_flow_port_add(&fe, BIT(i)); + + mvpp2_cls_flow_write(priv, &fe); + } +} + +/* Adds a field to the Header Extracted Key generation parameters*/ +static int mvpp2_flow_add_hek_field(struct mvpp2_cls_flow_entry *fe, + u32 field_id) +{ + int nb_fields = mvpp2_cls_flow_hek_num_get(fe); + + if (nb_fields == MVPP2_FLOW_N_FIELDS) + return -EINVAL; + + mvpp2_cls_flow_hek_set(fe, nb_fields, field_id); + + mvpp2_cls_flow_hek_num_set(fe, nb_fields + 1); + + return 0; +} + +static int mvpp2_flow_set_hek_fields(struct mvpp2_cls_flow_entry *fe, + unsigned long hash_opts) +{ + u32 field_id; + int i; + + /* Clear old fields */ + mvpp2_cls_flow_hek_num_set(fe, 0); + fe->data[2] = 0; + + for_each_set_bit(i, &hash_opts, MVPP22_CLS_HEK_N_FIELDS) { + switch (BIT(i)) { + case MVPP22_CLS_HEK_OPT_MAC_DA: + field_id = MVPP22_CLS_FIELD_MAC_DA; + break; + case MVPP22_CLS_HEK_OPT_VLAN: + field_id = MVPP22_CLS_FIELD_VLAN; + break; + case MVPP22_CLS_HEK_OPT_VLAN_PRI: + field_id = MVPP22_CLS_FIELD_VLAN_PRI; + break; + case MVPP22_CLS_HEK_OPT_IP4SA: + field_id = MVPP22_CLS_FIELD_IP4SA; + break; + case MVPP22_CLS_HEK_OPT_IP4DA: + field_id = MVPP22_CLS_FIELD_IP4DA; + break; + case MVPP22_CLS_HEK_OPT_IP6SA: + field_id = MVPP22_CLS_FIELD_IP6SA; + break; + case MVPP22_CLS_HEK_OPT_IP6DA: + field_id = MVPP22_CLS_FIELD_IP6DA; + break; + case MVPP22_CLS_HEK_OPT_L4SIP: + field_id = MVPP22_CLS_FIELD_L4SIP; + break; + case MVPP22_CLS_HEK_OPT_L4DIP: + field_id = MVPP22_CLS_FIELD_L4DIP; + break; + default: + return -EINVAL; + } + if (mvpp2_flow_add_hek_field(fe, field_id)) + return -EINVAL; + } + + return 0; +} + +/* Returns the size, in bits, of the corresponding HEK field */ +static int mvpp2_cls_hek_field_size(u32 field) +{ + switch (field) { + case MVPP22_CLS_HEK_OPT_MAC_DA: + return 48; + case MVPP22_CLS_HEK_OPT_VLAN: + return 12; + case MVPP22_CLS_HEK_OPT_VLAN_PRI: + return 3; + case MVPP22_CLS_HEK_OPT_IP4SA: + case MVPP22_CLS_HEK_OPT_IP4DA: + return 32; + case MVPP22_CLS_HEK_OPT_IP6SA: + case MVPP22_CLS_HEK_OPT_IP6DA: + return 128; + case MVPP22_CLS_HEK_OPT_L4SIP: + case MVPP22_CLS_HEK_OPT_L4DIP: + return 16; + default: + return -1; + } +} + +const struct mvpp2_cls_flow *mvpp2_cls_flow_get(int flow) +{ + if (flow >= MVPP2_N_PRS_FLOWS) + return NULL; + + return &cls_flows[flow]; +} + +/* Set the hash generation options for the given traffic flow. + * One traffic flow (in the ethtool sense) has multiple classification flows, + * to handle specific cases such as fragmentation, or the presence of a + * VLAN / DSA Tag. + * + * Each of these individual flows has different constraints, for example we + * can't hash fragmented packets on L4 data (else we would risk having packet + * re-ordering), so each classification flows masks the options with their + * supported ones. + * + */ +static int mvpp2_port_rss_hash_opts_set(struct mvpp2_port *port, int flow_type, + u16 requested_opts) +{ + const struct mvpp2_cls_flow *flow; + struct mvpp2_cls_flow_entry fe; + int i, engine, flow_index; + u16 hash_opts; + + for_each_cls_flow_id_with_type(i, flow_type) { + flow = mvpp2_cls_flow_get(i); + if (!flow) + return -EINVAL; + + flow_index = MVPP2_CLS_FLT_HASH_ENTRY(port->id, flow->flow_id); + + mvpp2_cls_flow_read(port->priv, flow_index, &fe); + + hash_opts = flow->supported_hash_opts & requested_opts; + + /* Use C3HB engine to access L4 infos. This adds L4 infos to the + * hash parameters + */ + if (hash_opts & MVPP22_CLS_HEK_L4_OPTS) + engine = MVPP22_CLS_ENGINE_C3HB; + else + engine = MVPP22_CLS_ENGINE_C3HA; + + if (mvpp2_flow_set_hek_fields(&fe, hash_opts)) + return -EINVAL; + + mvpp2_cls_flow_eng_set(&fe, engine); + + mvpp2_cls_flow_write(port->priv, &fe); + } + + return 0; +} + +u16 mvpp2_flow_get_hek_fields(struct mvpp2_cls_flow_entry *fe) +{ + u16 hash_opts = 0; + int n_fields, i, field; + + n_fields = mvpp2_cls_flow_hek_num_get(fe); + + for (i = 0; i < n_fields; i++) { + field = mvpp2_cls_flow_hek_get(fe, i); + + switch (field) { + case MVPP22_CLS_FIELD_MAC_DA: + hash_opts |= MVPP22_CLS_HEK_OPT_MAC_DA; + break; + case MVPP22_CLS_FIELD_VLAN: + hash_opts |= MVPP22_CLS_HEK_OPT_VLAN; + break; + case MVPP22_CLS_FIELD_VLAN_PRI: + hash_opts |= MVPP22_CLS_HEK_OPT_VLAN_PRI; + break; + case MVPP22_CLS_FIELD_L3_PROTO: + hash_opts |= MVPP22_CLS_HEK_OPT_L3_PROTO; + break; + case MVPP22_CLS_FIELD_IP4SA: + hash_opts |= MVPP22_CLS_HEK_OPT_IP4SA; + break; + case MVPP22_CLS_FIELD_IP4DA: + hash_opts |= MVPP22_CLS_HEK_OPT_IP4DA; + break; + case MVPP22_CLS_FIELD_IP6SA: + hash_opts |= MVPP22_CLS_HEK_OPT_IP6SA; + break; + case MVPP22_CLS_FIELD_IP6DA: + hash_opts |= MVPP22_CLS_HEK_OPT_IP6DA; + break; + case MVPP22_CLS_FIELD_L4SIP: + hash_opts |= MVPP22_CLS_HEK_OPT_L4SIP; + break; + case MVPP22_CLS_FIELD_L4DIP: + hash_opts |= MVPP22_CLS_HEK_OPT_L4DIP; + break; + default: + break; + } + } + return hash_opts; +} + +/* Returns the hash opts for this flow. There are several classifier flows + * for one traffic flow, this returns an aggregation of all configurations. + */ +static u16 mvpp2_port_rss_hash_opts_get(struct mvpp2_port *port, int flow_type) +{ + const struct mvpp2_cls_flow *flow; + struct mvpp2_cls_flow_entry fe; + int i, flow_index; + u16 hash_opts = 0; + + for_each_cls_flow_id_with_type(i, flow_type) { + flow = mvpp2_cls_flow_get(i); + if (!flow) + return 0; + + flow_index = MVPP2_CLS_FLT_HASH_ENTRY(port->id, flow->flow_id); + + mvpp2_cls_flow_read(port->priv, flow_index, &fe); + + hash_opts |= mvpp2_flow_get_hek_fields(&fe); + } + + return hash_opts; +} + +static void mvpp2_cls_port_init_flows(struct mvpp2 *priv) +{ + const struct mvpp2_cls_flow *flow; + int i; + + for (i = 0; i < MVPP2_N_PRS_FLOWS; i++) { + flow = mvpp2_cls_flow_get(i); + if (!flow) + break; + + mvpp2_cls_flow_prs_init(priv, flow); + mvpp2_cls_flow_lkp_init(priv, flow); + mvpp2_cls_flow_init(priv, flow); + } +} + +static void mvpp2_port_c2_cls_init(struct mvpp2_port *port) +{ + struct mvpp2_cls_c2_entry c2; + u8 qh, ql, pmap; + + memset(&c2, 0, sizeof(c2)); + + c2.index = MVPP22_CLS_C2_RSS_ENTRY(port->id); + + pmap = BIT(port->id); + c2.tcam[4] = MVPP22_CLS_C2_PORT_ID(pmap); + c2.tcam[4] |= MVPP22_CLS_C2_TCAM_EN(MVPP22_CLS_C2_PORT_ID(pmap)); + + /* Match on Lookup Type */ + c2.tcam[4] |= MVPP22_CLS_C2_TCAM_EN(MVPP22_CLS_C2_LU_TYPE(MVPP2_CLS_LU_TYPE_MASK)); + c2.tcam[4] |= MVPP22_CLS_C2_LU_TYPE(MVPP22_CLS_LU_TYPE_ALL); + + /* Update RSS status after matching this entry */ + c2.act = MVPP22_CLS_C2_ACT_RSS_EN(MVPP22_C2_UPD_LOCK); + + /* Mark packet as "forwarded to software", needed for RSS */ + c2.act |= MVPP22_CLS_C2_ACT_FWD(MVPP22_C2_FWD_SW_LOCK); + + /* Configure the default rx queue : Update Queue Low and Queue High, but + * don't lock, since the rx queue selection might be overridden by RSS + */ + c2.act |= MVPP22_CLS_C2_ACT_QHIGH(MVPP22_C2_UPD) | + MVPP22_CLS_C2_ACT_QLOW(MVPP22_C2_UPD); + + qh = (port->first_rxq >> 3) & MVPP22_CLS_C2_ATTR0_QHIGH_MASK; + ql = port->first_rxq & MVPP22_CLS_C2_ATTR0_QLOW_MASK; + + c2.attr[0] = MVPP22_CLS_C2_ATTR0_QHIGH(qh) | + MVPP22_CLS_C2_ATTR0_QLOW(ql); + + c2.valid = true; + + mvpp2_cls_c2_write(port->priv, &c2); +} + +/* Classifier default initialization */ +void mvpp2_cls_init(struct mvpp2 *priv) +{ + struct mvpp2_cls_lookup_entry le; + struct mvpp2_cls_flow_entry fe; + struct mvpp2_cls_c2_entry c2; + int index; + + /* Enable classifier */ + mvpp2_write(priv, MVPP2_CLS_MODE_REG, MVPP2_CLS_MODE_ACTIVE_MASK); + + /* Clear classifier flow table */ + memset(&fe.data, 0, sizeof(fe.data)); + for (index = 0; index < MVPP2_CLS_FLOWS_TBL_SIZE; index++) { + fe.index = index; + mvpp2_cls_flow_write(priv, &fe); + } + + /* Clear classifier lookup table */ + le.data = 0; + for (index = 0; index < MVPP2_CLS_LKP_TBL_SIZE; index++) { + le.lkpid = index; + le.way = 0; + mvpp2_cls_lookup_write(priv, &le); + + le.way = 1; + mvpp2_cls_lookup_write(priv, &le); + } + + /* Clear C2 TCAM engine table */ + memset(&c2, 0, sizeof(c2)); + c2.valid = false; + for (index = 0; index < MVPP22_CLS_C2_N_ENTRIES; index++) { + c2.index = index; + mvpp2_cls_c2_write(priv, &c2); + } + + /* Disable the FIFO stages in C2 engine, which are only used in BIST + * mode + */ + mvpp2_write(priv, MVPP22_CLS_C2_TCAM_CTRL, + MVPP22_CLS_C2_TCAM_BYPASS_FIFO); + + mvpp2_cls_port_init_flows(priv); +} + +void mvpp2_cls_port_config(struct mvpp2_port *port) +{ + struct mvpp2_cls_lookup_entry le; + u32 val; + + /* Set way for the port */ + val = mvpp2_read(port->priv, MVPP2_CLS_PORT_WAY_REG); + val &= ~MVPP2_CLS_PORT_WAY_MASK(port->id); + mvpp2_write(port->priv, MVPP2_CLS_PORT_WAY_REG, val); + + /* Pick the entry to be accessed in lookup ID decoding table + * according to the way and lkpid. + */ + le.lkpid = port->id; + le.way = 0; + le.data = 0; + + /* Set initial CPU queue for receiving packets */ + le.data &= ~MVPP2_CLS_LKP_TBL_RXQ_MASK; + le.data |= port->first_rxq; + + /* Disable classification engines */ + le.data &= ~MVPP2_CLS_LKP_TBL_LOOKUP_EN_MASK; + + /* Update lookup ID table entry */ + mvpp2_cls_lookup_write(port->priv, &le); + + mvpp2_port_c2_cls_init(port); +} + +u32 mvpp2_cls_c2_hit_count(struct mvpp2 *priv, int c2_index) +{ + mvpp2_write(priv, MVPP22_CLS_C2_TCAM_IDX, c2_index); + + return mvpp2_read(priv, MVPP22_CLS_C2_HIT_CTR); +} + +static void mvpp2_rss_port_c2_enable(struct mvpp2_port *port, u32 ctx) +{ + struct mvpp2_cls_c2_entry c2; + u8 qh, ql; + + mvpp2_cls_c2_read(port->priv, MVPP22_CLS_C2_RSS_ENTRY(port->id), &c2); + + /* The RxQ number is used to select the RSS table. It that case, we set + * it to be the ctx number. + */ + qh = (ctx >> 3) & MVPP22_CLS_C2_ATTR0_QHIGH_MASK; + ql = ctx & MVPP22_CLS_C2_ATTR0_QLOW_MASK; + + c2.attr[0] = MVPP22_CLS_C2_ATTR0_QHIGH(qh) | + MVPP22_CLS_C2_ATTR0_QLOW(ql); + + c2.attr[2] |= MVPP22_CLS_C2_ATTR2_RSS_EN; + + mvpp2_cls_c2_write(port->priv, &c2); +} + +static void mvpp2_rss_port_c2_disable(struct mvpp2_port *port) +{ + struct mvpp2_cls_c2_entry c2; + u8 qh, ql; + + mvpp2_cls_c2_read(port->priv, MVPP22_CLS_C2_RSS_ENTRY(port->id), &c2); + + /* Reset the default destination RxQ to the port's first rx queue. */ + qh = (port->first_rxq >> 3) & MVPP22_CLS_C2_ATTR0_QHIGH_MASK; + ql = port->first_rxq & MVPP22_CLS_C2_ATTR0_QLOW_MASK; + + c2.attr[0] = MVPP22_CLS_C2_ATTR0_QHIGH(qh) | + MVPP22_CLS_C2_ATTR0_QLOW(ql); + + c2.attr[2] &= ~MVPP22_CLS_C2_ATTR2_RSS_EN; + + mvpp2_cls_c2_write(port->priv, &c2); +} + +static inline int mvpp22_rss_ctx(struct mvpp2_port *port, int port_rss_ctx) +{ + return port->rss_ctx[port_rss_ctx]; +} + +int mvpp22_port_rss_enable(struct mvpp2_port *port) +{ + if (mvpp22_rss_ctx(port, 0) < 0) + return -EINVAL; + + mvpp2_rss_port_c2_enable(port, mvpp22_rss_ctx(port, 0)); + + return 0; +} + +int mvpp22_port_rss_disable(struct mvpp2_port *port) +{ + if (mvpp22_rss_ctx(port, 0) < 0) + return -EINVAL; + + mvpp2_rss_port_c2_disable(port); + + return 0; +} + +static void mvpp22_port_c2_lookup_disable(struct mvpp2_port *port, int entry) +{ + struct mvpp2_cls_c2_entry c2; + + mvpp2_cls_c2_read(port->priv, entry, &c2); + + /* Clear the port map so that the entry doesn't match anymore */ + c2.tcam[4] &= ~(MVPP22_CLS_C2_PORT_ID(BIT(port->id))); + + mvpp2_cls_c2_write(port->priv, &c2); +} + +/* Set CPU queue number for oversize packets */ +void mvpp2_cls_oversize_rxq_set(struct mvpp2_port *port) +{ + u32 val; + + mvpp2_write(port->priv, MVPP2_CLS_OVERSIZE_RXQ_LOW_REG(port->id), + port->first_rxq & MVPP2_CLS_OVERSIZE_RXQ_LOW_MASK); + + mvpp2_write(port->priv, MVPP2_CLS_SWFWD_P2HQ_REG(port->id), + (port->first_rxq >> MVPP2_CLS_OVERSIZE_RXQ_LOW_BITS)); + + val = mvpp2_read(port->priv, MVPP2_CLS_SWFWD_PCTRL_REG); + val &= ~MVPP2_CLS_SWFWD_PCTRL_MASK(port->id); + mvpp2_write(port->priv, MVPP2_CLS_SWFWD_PCTRL_REG, val); +} + +static int mvpp2_port_c2_tcam_rule_add(struct mvpp2_port *port, + struct mvpp2_rfs_rule *rule) +{ + struct flow_action_entry *act; + struct mvpp2_cls_c2_entry c2; + u8 qh, ql, pmap; + int index, ctx; + + if (!flow_action_basic_hw_stats_check(&rule->flow->action, NULL)) + return -EOPNOTSUPP; + + memset(&c2, 0, sizeof(c2)); + + index = mvpp2_cls_c2_port_flow_index(port, rule->loc); + if (index < 0) + return -EINVAL; + c2.index = index; + + act = &rule->flow->action.entries[0]; + + rule->c2_index = c2.index; + + c2.tcam[3] = (rule->c2_tcam & 0xffff) | + ((rule->c2_tcam_mask & 0xffff) << 16); + c2.tcam[2] = ((rule->c2_tcam >> 16) & 0xffff) | + (((rule->c2_tcam_mask >> 16) & 0xffff) << 16); + c2.tcam[1] = ((rule->c2_tcam >> 32) & 0xffff) | + (((rule->c2_tcam_mask >> 32) & 0xffff) << 16); + c2.tcam[0] = ((rule->c2_tcam >> 48) & 0xffff) | + (((rule->c2_tcam_mask >> 48) & 0xffff) << 16); + + pmap = BIT(port->id); + c2.tcam[4] = MVPP22_CLS_C2_PORT_ID(pmap); + c2.tcam[4] |= MVPP22_CLS_C2_TCAM_EN(MVPP22_CLS_C2_PORT_ID(pmap)); + + /* Match on Lookup Type */ + c2.tcam[4] |= MVPP22_CLS_C2_TCAM_EN(MVPP22_CLS_C2_LU_TYPE(MVPP2_CLS_LU_TYPE_MASK)); + c2.tcam[4] |= MVPP22_CLS_C2_LU_TYPE(rule->loc); + + if (act->id == FLOW_ACTION_DROP) { + c2.act = MVPP22_CLS_C2_ACT_COLOR(MVPP22_C2_COL_RED_LOCK); + } else { + /* We want to keep the default color derived from the Header + * Parser drop entries, for VLAN and MAC filtering. This will + * assign a default color of Green or Red, and we want matches + * with a non-drop action to keep that color. + */ + c2.act = MVPP22_CLS_C2_ACT_COLOR(MVPP22_C2_COL_NO_UPD_LOCK); + + /* Update RSS status after matching this entry */ + if (act->queue.ctx) + c2.attr[2] |= MVPP22_CLS_C2_ATTR2_RSS_EN; + + /* Always lock the RSS_EN decision. We might have high prio + * rules steering to an RXQ, and a lower one steering to RSS, + * we don't want the low prio RSS rule overwriting this flag. + */ + c2.act = MVPP22_CLS_C2_ACT_RSS_EN(MVPP22_C2_UPD_LOCK); + + /* Mark packet as "forwarded to software", needed for RSS */ + c2.act |= MVPP22_CLS_C2_ACT_FWD(MVPP22_C2_FWD_SW_LOCK); + + c2.act |= MVPP22_CLS_C2_ACT_QHIGH(MVPP22_C2_UPD_LOCK) | + MVPP22_CLS_C2_ACT_QLOW(MVPP22_C2_UPD_LOCK); + + if (act->queue.ctx) { + /* Get the global ctx number */ + ctx = mvpp22_rss_ctx(port, act->queue.ctx); + if (ctx < 0) + return -EINVAL; + + qh = (ctx >> 3) & MVPP22_CLS_C2_ATTR0_QHIGH_MASK; + ql = ctx & MVPP22_CLS_C2_ATTR0_QLOW_MASK; + } else { + qh = ((act->queue.index + port->first_rxq) >> 3) & + MVPP22_CLS_C2_ATTR0_QHIGH_MASK; + ql = (act->queue.index + port->first_rxq) & + MVPP22_CLS_C2_ATTR0_QLOW_MASK; + } + + c2.attr[0] = MVPP22_CLS_C2_ATTR0_QHIGH(qh) | + MVPP22_CLS_C2_ATTR0_QLOW(ql); + } + + c2.valid = true; + + mvpp2_cls_c2_write(port->priv, &c2); + + return 0; +} + +static int mvpp2_port_c2_rfs_rule_insert(struct mvpp2_port *port, + struct mvpp2_rfs_rule *rule) +{ + return mvpp2_port_c2_tcam_rule_add(port, rule); +} + +static int mvpp2_port_cls_rfs_rule_remove(struct mvpp2_port *port, + struct mvpp2_rfs_rule *rule) +{ + const struct mvpp2_cls_flow *flow; + struct mvpp2_cls_flow_entry fe; + int index, i; + + for_each_cls_flow_id_containing_type(i, rule->flow_type) { + flow = mvpp2_cls_flow_get(i); + if (!flow) + return 0; + + index = MVPP2_CLS_FLT_C2_RFS(port->id, flow->flow_id, rule->loc); + + mvpp2_cls_flow_read(port->priv, index, &fe); + mvpp2_cls_flow_port_remove(&fe, BIT(port->id)); + mvpp2_cls_flow_write(port->priv, &fe); + } + + if (rule->c2_index >= 0) + mvpp22_port_c2_lookup_disable(port, rule->c2_index); + + return 0; +} + +static int mvpp2_port_flt_rfs_rule_insert(struct mvpp2_port *port, + struct mvpp2_rfs_rule *rule) +{ + const struct mvpp2_cls_flow *flow; + struct mvpp2 *priv = port->priv; + struct mvpp2_cls_flow_entry fe; + int index, ret, i; + + if (rule->engine != MVPP22_CLS_ENGINE_C2) + return -EOPNOTSUPP; + + ret = mvpp2_port_c2_rfs_rule_insert(port, rule); + if (ret) + return ret; + + for_each_cls_flow_id_containing_type(i, rule->flow_type) { + flow = mvpp2_cls_flow_get(i); + if (!flow) + return 0; + + if ((rule->hek_fields & flow->supported_hash_opts) != rule->hek_fields) + continue; + + index = MVPP2_CLS_FLT_C2_RFS(port->id, flow->flow_id, rule->loc); + + mvpp2_cls_flow_read(priv, index, &fe); + mvpp2_cls_flow_eng_set(&fe, rule->engine); + mvpp2_cls_flow_port_id_sel(&fe, true); + mvpp2_flow_set_hek_fields(&fe, rule->hek_fields); + mvpp2_cls_flow_lu_type_set(&fe, rule->loc); + mvpp2_cls_flow_port_add(&fe, 0xf); + + mvpp2_cls_flow_write(priv, &fe); + } + + return 0; +} + +static int mvpp2_cls_c2_build_match(struct mvpp2_rfs_rule *rule) +{ + struct flow_rule *flow = rule->flow; + int offs = 0; + + /* The order of insertion in C2 tcam must match the order in which + * the fields are found in the header + */ + if (flow_rule_match_key(flow, FLOW_DISSECTOR_KEY_VLAN)) { + struct flow_match_vlan match; + + flow_rule_match_vlan(flow, &match); + if (match.mask->vlan_id) { + rule->hek_fields |= MVPP22_CLS_HEK_OPT_VLAN; + + rule->c2_tcam |= ((u64)match.key->vlan_id) << offs; + rule->c2_tcam_mask |= ((u64)match.mask->vlan_id) << offs; + + /* Don't update the offset yet */ + } + + if (match.mask->vlan_priority) { + rule->hek_fields |= MVPP22_CLS_HEK_OPT_VLAN_PRI; + + /* VLAN pri is always at offset 13 relative to the + * current offset + */ + rule->c2_tcam |= ((u64)match.key->vlan_priority) << + (offs + 13); + rule->c2_tcam_mask |= ((u64)match.mask->vlan_priority) << + (offs + 13); + } + + if (match.mask->vlan_dei) + return -EOPNOTSUPP; + + /* vlan id and prio always seem to take a full 16-bit slot in + * the Header Extracted Key. + */ + offs += 16; + } + + if (flow_rule_match_key(flow, FLOW_DISSECTOR_KEY_PORTS)) { + struct flow_match_ports match; + + flow_rule_match_ports(flow, &match); + if (match.mask->src) { + rule->hek_fields |= MVPP22_CLS_HEK_OPT_L4SIP; + + rule->c2_tcam |= ((u64)ntohs(match.key->src)) << offs; + rule->c2_tcam_mask |= ((u64)ntohs(match.mask->src)) << offs; + offs += mvpp2_cls_hek_field_size(MVPP22_CLS_HEK_OPT_L4SIP); + } + + if (match.mask->dst) { + rule->hek_fields |= MVPP22_CLS_HEK_OPT_L4DIP; + + rule->c2_tcam |= ((u64)ntohs(match.key->dst)) << offs; + rule->c2_tcam_mask |= ((u64)ntohs(match.mask->dst)) << offs; + offs += mvpp2_cls_hek_field_size(MVPP22_CLS_HEK_OPT_L4DIP); + } + } + + if (hweight16(rule->hek_fields) > MVPP2_FLOW_N_FIELDS) + return -EOPNOTSUPP; + + return 0; +} + +static int mvpp2_cls_rfs_parse_rule(struct mvpp2_rfs_rule *rule) +{ + struct flow_rule *flow = rule->flow; + struct flow_action_entry *act; + + if (!flow_action_basic_hw_stats_check(&rule->flow->action, NULL)) + return -EOPNOTSUPP; + + act = &flow->action.entries[0]; + if (act->id != FLOW_ACTION_QUEUE && act->id != FLOW_ACTION_DROP) + return -EOPNOTSUPP; + + /* When both an RSS context and an queue index are set, the index + * is considered as an offset to be added to the indirection table + * entries. We don't support this, so reject this rule. + */ + if (act->queue.ctx && act->queue.index) + return -EOPNOTSUPP; + + /* For now, only use the C2 engine which has a HEK size limited to 64 + * bits for TCAM matching. + */ + rule->engine = MVPP22_CLS_ENGINE_C2; + + if (mvpp2_cls_c2_build_match(rule)) + return -EINVAL; + + return 0; +} + +int mvpp2_ethtool_cls_rule_get(struct mvpp2_port *port, + struct ethtool_rxnfc *rxnfc) +{ + struct mvpp2_ethtool_fs *efs; + + if (rxnfc->fs.location >= MVPP2_N_RFS_ENTRIES_PER_FLOW) + return -EINVAL; + + efs = port->rfs_rules[rxnfc->fs.location]; + if (!efs) + return -ENOENT; + + memcpy(rxnfc, &efs->rxnfc, sizeof(efs->rxnfc)); + + return 0; +} + +int mvpp2_ethtool_cls_rule_ins(struct mvpp2_port *port, + struct ethtool_rxnfc *info) +{ + struct ethtool_rx_flow_spec_input input = {}; + struct ethtool_rx_flow_rule *ethtool_rule; + struct mvpp2_ethtool_fs *efs, *old_efs; + int ret = 0; + + if (info->fs.location >= MVPP2_N_RFS_ENTRIES_PER_FLOW) + return -EINVAL; + + efs = kzalloc(sizeof(*efs), GFP_KERNEL); + if (!efs) + return -ENOMEM; + + input.fs = &info->fs; + + /* We need to manually set the rss_ctx, since this info isn't present + * in info->fs + */ + if (info->fs.flow_type & FLOW_RSS) + input.rss_ctx = info->rss_context; + + ethtool_rule = ethtool_rx_flow_rule_create(&input); + if (IS_ERR(ethtool_rule)) { + ret = PTR_ERR(ethtool_rule); + goto clean_rule; + } + + efs->rule.flow = ethtool_rule->rule; + efs->rule.flow_type = mvpp2_cls_ethtool_flow_to_type(info->fs.flow_type); + if (efs->rule.flow_type < 0) { + ret = efs->rule.flow_type; + goto clean_rule; + } + + ret = mvpp2_cls_rfs_parse_rule(&efs->rule); + if (ret) + goto clean_eth_rule; + + efs->rule.loc = info->fs.location; + + /* Replace an already existing rule */ + if (port->rfs_rules[efs->rule.loc]) { + old_efs = port->rfs_rules[efs->rule.loc]; + ret = mvpp2_port_cls_rfs_rule_remove(port, &old_efs->rule); + if (ret) + goto clean_eth_rule; + kfree(old_efs); + port->n_rfs_rules--; + } + + ret = mvpp2_port_flt_rfs_rule_insert(port, &efs->rule); + if (ret) + goto clean_eth_rule; + + ethtool_rx_flow_rule_destroy(ethtool_rule); + efs->rule.flow = NULL; + + memcpy(&efs->rxnfc, info, sizeof(*info)); + port->rfs_rules[efs->rule.loc] = efs; + port->n_rfs_rules++; + + return ret; + +clean_eth_rule: + ethtool_rx_flow_rule_destroy(ethtool_rule); +clean_rule: + kfree(efs); + return ret; +} + +int mvpp2_ethtool_cls_rule_del(struct mvpp2_port *port, + struct ethtool_rxnfc *info) +{ + struct mvpp2_ethtool_fs *efs; + int ret; + + if (info->fs.location >= MVPP2_N_RFS_ENTRIES_PER_FLOW) + return -EINVAL; + + efs = port->rfs_rules[info->fs.location]; + if (!efs) + return -EINVAL; + + /* Remove the rule from the engines. */ + ret = mvpp2_port_cls_rfs_rule_remove(port, &efs->rule); + if (ret) + return ret; + + port->n_rfs_rules--; + port->rfs_rules[info->fs.location] = NULL; + kfree(efs); + + return 0; +} + +static inline u32 mvpp22_rxfh_indir(struct mvpp2_port *port, u32 rxq) +{ + int nrxqs, cpu, cpus = num_possible_cpus(); + + /* Number of RXQs per CPU */ + nrxqs = port->nrxqs / cpus; + + /* CPU that will handle this rx queue */ + cpu = rxq / nrxqs; + + if (!cpu_online(cpu)) + return port->first_rxq; + + /* Indirection to better distribute the paquets on the CPUs when + * configuring the RSS queues. + */ + return port->first_rxq + ((rxq * nrxqs + rxq / cpus) % port->nrxqs); +} + +static void mvpp22_rss_fill_table(struct mvpp2_port *port, + struct mvpp2_rss_table *table, + u32 rss_ctx) +{ + struct mvpp2 *priv = port->priv; + int i; + + for (i = 0; i < MVPP22_RSS_TABLE_ENTRIES; i++) { + u32 sel = MVPP22_RSS_INDEX_TABLE(rss_ctx) | + MVPP22_RSS_INDEX_TABLE_ENTRY(i); + mvpp2_write(priv, MVPP22_RSS_INDEX, sel); + + mvpp2_write(priv, MVPP22_RSS_TABLE_ENTRY, + mvpp22_rxfh_indir(port, table->indir[i])); + } +} + +static int mvpp22_rss_context_create(struct mvpp2_port *port, u32 *rss_ctx) +{ + struct mvpp2 *priv = port->priv; + u32 ctx; + + /* Find the first free RSS table */ + for (ctx = 0; ctx < MVPP22_N_RSS_TABLES; ctx++) { + if (!priv->rss_tables[ctx]) + break; + } + + if (ctx == MVPP22_N_RSS_TABLES) + return -EINVAL; + + priv->rss_tables[ctx] = kzalloc(sizeof(*priv->rss_tables[ctx]), + GFP_KERNEL); + if (!priv->rss_tables[ctx]) + return -ENOMEM; + + *rss_ctx = ctx; + + /* Set the table width: replace the whole classifier Rx queue number + * with the ones configured in RSS table entries. + */ + mvpp2_write(priv, MVPP22_RSS_INDEX, MVPP22_RSS_INDEX_TABLE(ctx)); + mvpp2_write(priv, MVPP22_RSS_WIDTH, 8); + + mvpp2_write(priv, MVPP22_RSS_INDEX, MVPP22_RSS_INDEX_QUEUE(ctx)); + mvpp2_write(priv, MVPP22_RXQ2RSS_TABLE, MVPP22_RSS_TABLE_POINTER(ctx)); + + return 0; +} + +int mvpp22_port_rss_ctx_create(struct mvpp2_port *port, u32 *port_ctx) +{ + u32 rss_ctx; + int ret, i; + + ret = mvpp22_rss_context_create(port, &rss_ctx); + if (ret) + return ret; + + /* Find the first available context number in the port, starting from 1. + * Context 0 on each port is reserved for the default context. + */ + for (i = 1; i < MVPP22_N_RSS_TABLES; i++) { + if (port->rss_ctx[i] < 0) + break; + } + + if (i == MVPP22_N_RSS_TABLES) + return -EINVAL; + + port->rss_ctx[i] = rss_ctx; + *port_ctx = i; + + return 0; +} + +static struct mvpp2_rss_table *mvpp22_rss_table_get(struct mvpp2 *priv, + int rss_ctx) +{ + if (rss_ctx < 0 || rss_ctx >= MVPP22_N_RSS_TABLES) + return NULL; + + return priv->rss_tables[rss_ctx]; +} + +int mvpp22_port_rss_ctx_delete(struct mvpp2_port *port, u32 port_ctx) +{ + struct mvpp2 *priv = port->priv; + struct ethtool_rxnfc *rxnfc; + int i, rss_ctx, ret; + + rss_ctx = mvpp22_rss_ctx(port, port_ctx); + + if (rss_ctx < 0 || rss_ctx >= MVPP22_N_RSS_TABLES) + return -EINVAL; + + /* Invalidate any active classification rule that use this context */ + for (i = 0; i < MVPP2_N_RFS_ENTRIES_PER_FLOW; i++) { + if (!port->rfs_rules[i]) + continue; + + rxnfc = &port->rfs_rules[i]->rxnfc; + if (!(rxnfc->fs.flow_type & FLOW_RSS) || + rxnfc->rss_context != port_ctx) + continue; + + ret = mvpp2_ethtool_cls_rule_del(port, rxnfc); + if (ret) { + netdev_warn(port->dev, + "couldn't remove classification rule %d associated to this context", + rxnfc->fs.location); + } + } + + kfree(priv->rss_tables[rss_ctx]); + + priv->rss_tables[rss_ctx] = NULL; + port->rss_ctx[port_ctx] = -1; + + return 0; +} + +int mvpp22_port_rss_ctx_indir_set(struct mvpp2_port *port, u32 port_ctx, + const u32 *indir) +{ + int rss_ctx = mvpp22_rss_ctx(port, port_ctx); + struct mvpp2_rss_table *rss_table = mvpp22_rss_table_get(port->priv, + rss_ctx); + + if (!rss_table) + return -EINVAL; + + memcpy(rss_table->indir, indir, + MVPP22_RSS_TABLE_ENTRIES * sizeof(rss_table->indir[0])); + + mvpp22_rss_fill_table(port, rss_table, rss_ctx); + + return 0; +} + +int mvpp22_port_rss_ctx_indir_get(struct mvpp2_port *port, u32 port_ctx, + u32 *indir) +{ + int rss_ctx = mvpp22_rss_ctx(port, port_ctx); + struct mvpp2_rss_table *rss_table = mvpp22_rss_table_get(port->priv, + rss_ctx); + + if (!rss_table) + return -EINVAL; + + memcpy(indir, rss_table->indir, + MVPP22_RSS_TABLE_ENTRIES * sizeof(rss_table->indir[0])); + + return 0; +} + +int mvpp2_ethtool_rxfh_set(struct mvpp2_port *port, struct ethtool_rxnfc *info) +{ + u16 hash_opts = 0; + u32 flow_type; + + flow_type = mvpp2_cls_ethtool_flow_to_type(info->flow_type); + + switch (flow_type) { + case MVPP22_FLOW_TCP4: + case MVPP22_FLOW_UDP4: + case MVPP22_FLOW_TCP6: + case MVPP22_FLOW_UDP6: + if (info->data & RXH_L4_B_0_1) + hash_opts |= MVPP22_CLS_HEK_OPT_L4SIP; + if (info->data & RXH_L4_B_2_3) + hash_opts |= MVPP22_CLS_HEK_OPT_L4DIP; + fallthrough; + case MVPP22_FLOW_IP4: + case MVPP22_FLOW_IP6: + if (info->data & RXH_L2DA) + hash_opts |= MVPP22_CLS_HEK_OPT_MAC_DA; + if (info->data & RXH_VLAN) + hash_opts |= MVPP22_CLS_HEK_OPT_VLAN; + if (info->data & RXH_L3_PROTO) + hash_opts |= MVPP22_CLS_HEK_OPT_L3_PROTO; + if (info->data & RXH_IP_SRC) + hash_opts |= (MVPP22_CLS_HEK_OPT_IP4SA | + MVPP22_CLS_HEK_OPT_IP6SA); + if (info->data & RXH_IP_DST) + hash_opts |= (MVPP22_CLS_HEK_OPT_IP4DA | + MVPP22_CLS_HEK_OPT_IP6DA); + break; + default: return -EOPNOTSUPP; + } + + return mvpp2_port_rss_hash_opts_set(port, flow_type, hash_opts); +} + +int mvpp2_ethtool_rxfh_get(struct mvpp2_port *port, struct ethtool_rxnfc *info) +{ + unsigned long hash_opts; + u32 flow_type; + int i; + + flow_type = mvpp2_cls_ethtool_flow_to_type(info->flow_type); + + hash_opts = mvpp2_port_rss_hash_opts_get(port, flow_type); + info->data = 0; + + for_each_set_bit(i, &hash_opts, MVPP22_CLS_HEK_N_FIELDS) { + switch (BIT(i)) { + case MVPP22_CLS_HEK_OPT_MAC_DA: + info->data |= RXH_L2DA; + break; + case MVPP22_CLS_HEK_OPT_VLAN: + info->data |= RXH_VLAN; + break; + case MVPP22_CLS_HEK_OPT_L3_PROTO: + info->data |= RXH_L3_PROTO; + break; + case MVPP22_CLS_HEK_OPT_IP4SA: + case MVPP22_CLS_HEK_OPT_IP6SA: + info->data |= RXH_IP_SRC; + break; + case MVPP22_CLS_HEK_OPT_IP4DA: + case MVPP22_CLS_HEK_OPT_IP6DA: + info->data |= RXH_IP_DST; + break; + case MVPP22_CLS_HEK_OPT_L4SIP: + info->data |= RXH_L4_B_0_1; + break; + case MVPP22_CLS_HEK_OPT_L4DIP: + info->data |= RXH_L4_B_2_3; + break; + default: + return -EINVAL; + } + } + return 0; +} + +int mvpp22_port_rss_init(struct mvpp2_port *port) +{ + struct mvpp2_rss_table *table; + u32 context = 0; + int i, ret; + + for (i = 0; i < MVPP22_N_RSS_TABLES; i++) + port->rss_ctx[i] = -1; + + ret = mvpp22_rss_context_create(port, &context); + if (ret) + return ret; + + table = mvpp22_rss_table_get(port->priv, context); + if (!table) + return -EINVAL; + + port->rss_ctx[0] = context; + + /* Configure the first table to evenly distribute the packets across + * real Rx Queues. The table entries map a hash to a port Rx Queue. + */ + for (i = 0; i < MVPP22_RSS_TABLE_ENTRIES; i++) + table->indir[i] = ethtool_rxfh_indir_default(i, port->nrxqs); + + mvpp22_rss_fill_table(port, table, mvpp22_rss_ctx(port, 0)); + + /* Configure default flows */ + mvpp2_port_rss_hash_opts_set(port, MVPP22_FLOW_IP4, MVPP22_CLS_HEK_IP4_2T); + mvpp2_port_rss_hash_opts_set(port, MVPP22_FLOW_IP6, MVPP22_CLS_HEK_IP6_2T); + mvpp2_port_rss_hash_opts_set(port, MVPP22_FLOW_TCP4, MVPP22_CLS_HEK_IP4_5T); + mvpp2_port_rss_hash_opts_set(port, MVPP22_FLOW_TCP6, MVPP22_CLS_HEK_IP6_5T); + mvpp2_port_rss_hash_opts_set(port, MVPP22_FLOW_UDP4, MVPP22_CLS_HEK_IP4_5T); + mvpp2_port_rss_hash_opts_set(port, MVPP22_FLOW_UDP6, MVPP22_CLS_HEK_IP6_5T); + + return 0; +} diff --git a/drivers/net/ethernet/marvell/mvpp2/mvpp2_cls.h b/drivers/net/ethernet/marvell/mvpp2/mvpp2_cls.h new file mode 100644 index 000000000..663157dc8 --- /dev/null +++ b/drivers/net/ethernet/marvell/mvpp2/mvpp2_cls.h @@ -0,0 +1,314 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * RSS and Classifier definitions for Marvell PPv2 Network Controller + * + * Copyright (C) 2014 Marvell + * + * Marcin Wojtas <mw@semihalf.com> + */ + +#ifndef _MVPP2_CLS_H_ +#define _MVPP2_CLS_H_ + +#include "mvpp2.h" +#include "mvpp2_prs.h" + +/* Classifier constants */ +#define MVPP2_CLS_FLOWS_TBL_SIZE 512 +#define MVPP2_CLS_FLOWS_TBL_DATA_WORDS 3 +#define MVPP2_CLS_LKP_TBL_SIZE 64 +#define MVPP2_CLS_RX_QUEUES 256 + +/* Classifier flow constants */ + +#define MVPP2_FLOW_N_FIELDS 4 + +enum mvpp2_cls_engine { + MVPP22_CLS_ENGINE_C2 = 1, + MVPP22_CLS_ENGINE_C3A, + MVPP22_CLS_ENGINE_C3B, + MVPP22_CLS_ENGINE_C4, + MVPP22_CLS_ENGINE_C3HA = 6, + MVPP22_CLS_ENGINE_C3HB = 7, +}; + +#define MVPP22_CLS_HEK_OPT_MAC_DA BIT(0) +#define MVPP22_CLS_HEK_OPT_VLAN_PRI BIT(1) +#define MVPP22_CLS_HEK_OPT_VLAN BIT(2) +#define MVPP22_CLS_HEK_OPT_L3_PROTO BIT(3) +#define MVPP22_CLS_HEK_OPT_IP4SA BIT(4) +#define MVPP22_CLS_HEK_OPT_IP4DA BIT(5) +#define MVPP22_CLS_HEK_OPT_IP6SA BIT(6) +#define MVPP22_CLS_HEK_OPT_IP6DA BIT(7) +#define MVPP22_CLS_HEK_OPT_L4SIP BIT(8) +#define MVPP22_CLS_HEK_OPT_L4DIP BIT(9) +#define MVPP22_CLS_HEK_N_FIELDS 10 + +#define MVPP22_CLS_HEK_L4_OPTS (MVPP22_CLS_HEK_OPT_L4SIP | \ + MVPP22_CLS_HEK_OPT_L4DIP) + +#define MVPP22_CLS_HEK_IP4_2T (MVPP22_CLS_HEK_OPT_IP4SA | \ + MVPP22_CLS_HEK_OPT_IP4DA) + +#define MVPP22_CLS_HEK_IP6_2T (MVPP22_CLS_HEK_OPT_IP6SA | \ + MVPP22_CLS_HEK_OPT_IP6DA) + +/* The fifth tuple in "5T" is the L4_Info field */ +#define MVPP22_CLS_HEK_IP4_5T (MVPP22_CLS_HEK_IP4_2T | \ + MVPP22_CLS_HEK_L4_OPTS) + +#define MVPP22_CLS_HEK_IP6_5T (MVPP22_CLS_HEK_IP6_2T | \ + MVPP22_CLS_HEK_L4_OPTS) + +#define MVPP22_CLS_HEK_TAGGED (MVPP22_CLS_HEK_OPT_VLAN | \ + MVPP22_CLS_HEK_OPT_VLAN_PRI) + +enum mvpp2_cls_field_id { + MVPP22_CLS_FIELD_MAC_DA = 0x03, + MVPP22_CLS_FIELD_VLAN_PRI = 0x05, + MVPP22_CLS_FIELD_VLAN = 0x06, + MVPP22_CLS_FIELD_L3_PROTO = 0x0f, + MVPP22_CLS_FIELD_IP4SA = 0x10, + MVPP22_CLS_FIELD_IP4DA = 0x11, + MVPP22_CLS_FIELD_IP6SA = 0x17, + MVPP22_CLS_FIELD_IP6DA = 0x1a, + MVPP22_CLS_FIELD_L4SIP = 0x1d, + MVPP22_CLS_FIELD_L4DIP = 0x1e, +}; + +/* Classifier C2 engine constants */ +#define MVPP22_CLS_C2_TCAM_EN(data) ((data) << 16) + +enum mvpp22_cls_c2_action { + MVPP22_C2_NO_UPD = 0, + MVPP22_C2_NO_UPD_LOCK, + MVPP22_C2_UPD, + MVPP22_C2_UPD_LOCK, +}; + +enum mvpp22_cls_c2_fwd_action { + MVPP22_C2_FWD_NO_UPD = 0, + MVPP22_C2_FWD_NO_UPD_LOCK, + MVPP22_C2_FWD_SW, + MVPP22_C2_FWD_SW_LOCK, + MVPP22_C2_FWD_HW, + MVPP22_C2_FWD_HW_LOCK, + MVPP22_C2_FWD_HW_LOW_LAT, + MVPP22_C2_FWD_HW_LOW_LAT_LOCK, +}; + +enum mvpp22_cls_c2_color_action { + MVPP22_C2_COL_NO_UPD = 0, + MVPP22_C2_COL_NO_UPD_LOCK, + MVPP22_C2_COL_GREEN, + MVPP22_C2_COL_GREEN_LOCK, + MVPP22_C2_COL_YELLOW, + MVPP22_C2_COL_YELLOW_LOCK, + MVPP22_C2_COL_RED, /* Drop */ + MVPP22_C2_COL_RED_LOCK, /* Drop */ +}; + +#define MVPP2_CLS_C2_TCAM_WORDS 5 +#define MVPP2_CLS_C2_ATTR_WORDS 5 + +struct mvpp2_cls_c2_entry { + u32 index; + /* TCAM lookup key */ + u32 tcam[MVPP2_CLS_C2_TCAM_WORDS]; + /* Actions to perform upon TCAM match */ + u32 act; + /* Attributes relative to the actions to perform */ + u32 attr[MVPP2_CLS_C2_ATTR_WORDS]; + /* Entry validity */ + u8 valid; +}; + +#define MVPP22_FLOW_ETHER_BIT BIT(0) +#define MVPP22_FLOW_IP4_BIT BIT(1) +#define MVPP22_FLOW_IP6_BIT BIT(2) +#define MVPP22_FLOW_TCP_BIT BIT(3) +#define MVPP22_FLOW_UDP_BIT BIT(4) + +#define MVPP22_FLOW_TCP4 (MVPP22_FLOW_ETHER_BIT | MVPP22_FLOW_IP4_BIT | MVPP22_FLOW_TCP_BIT) +#define MVPP22_FLOW_TCP6 (MVPP22_FLOW_ETHER_BIT | MVPP22_FLOW_IP6_BIT | MVPP22_FLOW_TCP_BIT) +#define MVPP22_FLOW_UDP4 (MVPP22_FLOW_ETHER_BIT | MVPP22_FLOW_IP4_BIT | MVPP22_FLOW_UDP_BIT) +#define MVPP22_FLOW_UDP6 (MVPP22_FLOW_ETHER_BIT | MVPP22_FLOW_IP6_BIT | MVPP22_FLOW_UDP_BIT) +#define MVPP22_FLOW_IP4 (MVPP22_FLOW_ETHER_BIT | MVPP22_FLOW_IP4_BIT) +#define MVPP22_FLOW_IP6 (MVPP22_FLOW_ETHER_BIT | MVPP22_FLOW_IP6_BIT) +#define MVPP22_FLOW_ETHERNET (MVPP22_FLOW_ETHER_BIT) + +/* Classifier C2 engine entries */ +#define MVPP22_CLS_C2_N_ENTRIES 256 + +/* Number of per-port dedicated entries in the C2 TCAM */ +#define MVPP22_CLS_C2_PORT_N_FLOWS MVPP2_N_RFS_ENTRIES_PER_FLOW + +/* Each port has one range per flow type + one entry controlling the global RSS + * setting and the default rx queue + */ +#define MVPP22_CLS_C2_PORT_RANGE (MVPP22_CLS_C2_PORT_N_FLOWS + 1) +#define MVPP22_CLS_C2_PORT_FIRST(p) ((p) * MVPP22_CLS_C2_PORT_RANGE) +#define MVPP22_CLS_C2_RSS_ENTRY(p) (MVPP22_CLS_C2_PORT_FIRST((p) + 1) - 1) + +#define MVPP22_CLS_C2_PORT_FLOW_FIRST(p) (MVPP22_CLS_C2_PORT_FIRST(p)) + +#define MVPP22_CLS_C2_RFS_LOC(p, loc) (MVPP22_CLS_C2_PORT_FLOW_FIRST(p) + (loc)) + +/* Packet flow ID */ +enum mvpp2_prs_flow { + MVPP2_FL_START = 8, + MVPP2_FL_IP4_TCP_NF_UNTAG = MVPP2_FL_START, + MVPP2_FL_IP4_UDP_NF_UNTAG, + MVPP2_FL_IP4_TCP_NF_TAG, + MVPP2_FL_IP4_UDP_NF_TAG, + MVPP2_FL_IP6_TCP_NF_UNTAG, + MVPP2_FL_IP6_UDP_NF_UNTAG, + MVPP2_FL_IP6_TCP_NF_TAG, + MVPP2_FL_IP6_UDP_NF_TAG, + MVPP2_FL_IP4_TCP_FRAG_UNTAG, + MVPP2_FL_IP4_UDP_FRAG_UNTAG, + MVPP2_FL_IP4_TCP_FRAG_TAG, + MVPP2_FL_IP4_UDP_FRAG_TAG, + MVPP2_FL_IP6_TCP_FRAG_UNTAG, + MVPP2_FL_IP6_UDP_FRAG_UNTAG, + MVPP2_FL_IP6_TCP_FRAG_TAG, + MVPP2_FL_IP6_UDP_FRAG_TAG, + MVPP2_FL_IP4_UNTAG, /* non-TCP, non-UDP, same for below */ + MVPP2_FL_IP4_TAG, + MVPP2_FL_IP6_UNTAG, + MVPP2_FL_IP6_TAG, + MVPP2_FL_NON_IP_UNTAG, + MVPP2_FL_NON_IP_TAG, + MVPP2_FL_LAST, +}; + +/* LU Type defined for all engines, and specified in the flow table */ +#define MVPP2_CLS_LU_TYPE_MASK 0x3f + +enum mvpp2_cls_lu_type { + /* rule->loc is used as a lu-type for the entries 0 - 62. */ + MVPP22_CLS_LU_TYPE_ALL = 63, +}; + +#define MVPP2_N_FLOWS (MVPP2_FL_LAST - MVPP2_FL_START) + +struct mvpp2_cls_flow { + /* The L2-L4 traffic flow type */ + int flow_type; + + /* The first id in the flow table for this flow */ + u16 flow_id; + + /* The supported HEK fields for this flow */ + u16 supported_hash_opts; + + /* The Header Parser result_info that matches this flow */ + struct mvpp2_prs_result_info prs_ri; +}; + +#define MVPP2_CLS_FLT_ENTRIES_PER_FLOW (MVPP2_MAX_PORTS + 1 + 16) +#define MVPP2_CLS_FLT_FIRST(id) (((id) - MVPP2_FL_START) * \ + MVPP2_CLS_FLT_ENTRIES_PER_FLOW) + +#define MVPP2_CLS_FLT_C2_RFS(port, id, rfs_n) (MVPP2_CLS_FLT_FIRST(id) + \ + ((port) * MVPP2_MAX_PORTS) + \ + (rfs_n)) + +#define MVPP2_CLS_FLT_C2_RSS_ENTRY(id) (MVPP2_CLS_FLT_C2_RFS(MVPP2_MAX_PORTS, id, 0)) +#define MVPP2_CLS_FLT_HASH_ENTRY(port, id) (MVPP2_CLS_FLT_C2_RSS_ENTRY(id) + 1 + (port)) +#define MVPP2_CLS_FLT_LAST(id) (MVPP2_CLS_FLT_FIRST(id) + \ + MVPP2_CLS_FLT_ENTRIES_PER_FLOW - 1) + +/* Iterate on each classifier flow id. Sets 'i' to be the index of the first + * entry in the cls_flows table for each different flow_id. + * This relies on entries having the same flow_id in the cls_flows table being + * contiguous. + */ +#define for_each_cls_flow_id(i) \ + for ((i) = 0; (i) < MVPP2_N_PRS_FLOWS; (i)++) \ + if ((i) > 0 && \ + cls_flows[(i)].flow_id == cls_flows[(i) - 1].flow_id) \ + continue; \ + else + +/* Iterate on each classifier flow that has a given flow_type. Sets 'i' to be + * the index of the first entry in the cls_flow table for each different flow_id + * that has the given flow_type. This allows to operate on all flows that + * matches a given ethtool flow type. + */ +#define for_each_cls_flow_id_with_type(i, type) \ + for_each_cls_flow_id((i)) \ + if (cls_flows[(i)].flow_type != (type)) \ + continue; \ + else + +#define for_each_cls_flow_id_containing_type(i, type) \ + for_each_cls_flow_id((i)) \ + if ((cls_flows[(i)].flow_type & (type)) != (type)) \ + continue; \ + else + +struct mvpp2_cls_flow_entry { + u32 index; + u32 data[MVPP2_CLS_FLOWS_TBL_DATA_WORDS]; +}; + +struct mvpp2_cls_lookup_entry { + u32 lkpid; + u32 way; + u32 data; +}; + +int mvpp22_port_rss_init(struct mvpp2_port *port); + +int mvpp22_port_rss_enable(struct mvpp2_port *port); +int mvpp22_port_rss_disable(struct mvpp2_port *port); + +int mvpp22_port_rss_ctx_create(struct mvpp2_port *port, u32 *rss_ctx); +int mvpp22_port_rss_ctx_delete(struct mvpp2_port *port, u32 rss_ctx); + +int mvpp22_port_rss_ctx_indir_set(struct mvpp2_port *port, u32 rss_ctx, + const u32 *indir); +int mvpp22_port_rss_ctx_indir_get(struct mvpp2_port *port, u32 rss_ctx, + u32 *indir); + +int mvpp2_ethtool_rxfh_get(struct mvpp2_port *port, struct ethtool_rxnfc *info); +int mvpp2_ethtool_rxfh_set(struct mvpp2_port *port, struct ethtool_rxnfc *info); + +void mvpp2_cls_init(struct mvpp2 *priv); + +void mvpp2_cls_port_config(struct mvpp2_port *port); + +void mvpp2_cls_oversize_rxq_set(struct mvpp2_port *port); + +int mvpp2_cls_flow_eng_get(struct mvpp2_cls_flow_entry *fe); + +u16 mvpp2_flow_get_hek_fields(struct mvpp2_cls_flow_entry *fe); + +const struct mvpp2_cls_flow *mvpp2_cls_flow_get(int flow); + +u32 mvpp2_cls_flow_hits(struct mvpp2 *priv, int index); + +void mvpp2_cls_flow_read(struct mvpp2 *priv, int index, + struct mvpp2_cls_flow_entry *fe); + +u32 mvpp2_cls_lookup_hits(struct mvpp2 *priv, int index); + +void mvpp2_cls_lookup_read(struct mvpp2 *priv, int lkpid, int way, + struct mvpp2_cls_lookup_entry *le); + +u32 mvpp2_cls_c2_hit_count(struct mvpp2 *priv, int c2_index); + +void mvpp2_cls_c2_read(struct mvpp2 *priv, int index, + struct mvpp2_cls_c2_entry *c2); + +int mvpp2_ethtool_cls_rule_get(struct mvpp2_port *port, + struct ethtool_rxnfc *rxnfc); + +int mvpp2_ethtool_cls_rule_ins(struct mvpp2_port *port, + struct ethtool_rxnfc *info); + +int mvpp2_ethtool_cls_rule_del(struct mvpp2_port *port, + struct ethtool_rxnfc *info); + +#endif diff --git a/drivers/net/ethernet/marvell/mvpp2/mvpp2_debugfs.c b/drivers/net/ethernet/marvell/mvpp2/mvpp2_debugfs.c new file mode 100644 index 000000000..75e83ea2a --- /dev/null +++ b/drivers/net/ethernet/marvell/mvpp2/mvpp2_debugfs.c @@ -0,0 +1,744 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Driver for Marvell PPv2 network controller for Armada 375 SoC. + * + * Copyright (C) 2018 Marvell + */ + +#include <linux/kernel.h> +#include <linux/slab.h> +#include <linux/debugfs.h> + +#include "mvpp2.h" +#include "mvpp2_prs.h" +#include "mvpp2_cls.h" + +struct mvpp2_dbgfs_prs_entry { + int tid; + struct mvpp2 *priv; +}; + +struct mvpp2_dbgfs_c2_entry { + int id; + struct mvpp2 *priv; +}; + +struct mvpp2_dbgfs_flow_entry { + int flow; + struct mvpp2 *priv; +}; + +struct mvpp2_dbgfs_flow_tbl_entry { + int id; + struct mvpp2 *priv; +}; + +struct mvpp2_dbgfs_port_flow_entry { + struct mvpp2_port *port; + struct mvpp2_dbgfs_flow_entry *dbg_fe; +}; + +struct mvpp2_dbgfs_entries { + /* Entries for Header Parser debug info */ + struct mvpp2_dbgfs_prs_entry prs_entries[MVPP2_PRS_TCAM_SRAM_SIZE]; + + /* Entries for Classifier C2 engine debug info */ + struct mvpp2_dbgfs_c2_entry c2_entries[MVPP22_CLS_C2_N_ENTRIES]; + + /* Entries for Classifier Flow Table debug info */ + struct mvpp2_dbgfs_flow_tbl_entry flt_entries[MVPP2_CLS_FLOWS_TBL_SIZE]; + + /* Entries for Classifier flows debug info */ + struct mvpp2_dbgfs_flow_entry flow_entries[MVPP2_N_PRS_FLOWS]; + + /* Entries for per-port flows debug info */ + struct mvpp2_dbgfs_port_flow_entry port_flow_entries[MVPP2_MAX_PORTS]; +}; + +static int mvpp2_dbgfs_flow_flt_hits_show(struct seq_file *s, void *unused) +{ + struct mvpp2_dbgfs_flow_tbl_entry *entry = s->private; + + u32 hits = mvpp2_cls_flow_hits(entry->priv, entry->id); + + seq_printf(s, "%u\n", hits); + + return 0; +} + +DEFINE_SHOW_ATTRIBUTE(mvpp2_dbgfs_flow_flt_hits); + +static int mvpp2_dbgfs_flow_dec_hits_show(struct seq_file *s, void *unused) +{ + struct mvpp2_dbgfs_flow_entry *entry = s->private; + + u32 hits = mvpp2_cls_lookup_hits(entry->priv, entry->flow); + + seq_printf(s, "%u\n", hits); + + return 0; +} + +DEFINE_SHOW_ATTRIBUTE(mvpp2_dbgfs_flow_dec_hits); + +static int mvpp2_dbgfs_flow_type_show(struct seq_file *s, void *unused) +{ + struct mvpp2_dbgfs_flow_entry *entry = s->private; + const struct mvpp2_cls_flow *f; + const char *flow_name; + + f = mvpp2_cls_flow_get(entry->flow); + if (!f) + return -EINVAL; + + switch (f->flow_type) { + case IPV4_FLOW: + flow_name = "ipv4"; + break; + case IPV6_FLOW: + flow_name = "ipv6"; + break; + case TCP_V4_FLOW: + flow_name = "tcp4"; + break; + case TCP_V6_FLOW: + flow_name = "tcp6"; + break; + case UDP_V4_FLOW: + flow_name = "udp4"; + break; + case UDP_V6_FLOW: + flow_name = "udp6"; + break; + default: + flow_name = "other"; + } + + seq_printf(s, "%s\n", flow_name); + + return 0; +} + +DEFINE_SHOW_ATTRIBUTE(mvpp2_dbgfs_flow_type); + +static int mvpp2_dbgfs_flow_id_show(struct seq_file *s, void *unused) +{ + const struct mvpp2_dbgfs_flow_entry *entry = s->private; + const struct mvpp2_cls_flow *f; + + f = mvpp2_cls_flow_get(entry->flow); + if (!f) + return -EINVAL; + + seq_printf(s, "%d\n", f->flow_id); + + return 0; +} + +DEFINE_SHOW_ATTRIBUTE(mvpp2_dbgfs_flow_id); + +static int mvpp2_dbgfs_port_flow_hash_opt_show(struct seq_file *s, void *unused) +{ + struct mvpp2_dbgfs_port_flow_entry *entry = s->private; + struct mvpp2_port *port = entry->port; + struct mvpp2_cls_flow_entry fe; + const struct mvpp2_cls_flow *f; + int flow_index; + u16 hash_opts; + + f = mvpp2_cls_flow_get(entry->dbg_fe->flow); + if (!f) + return -EINVAL; + + flow_index = MVPP2_CLS_FLT_HASH_ENTRY(entry->port->id, f->flow_id); + + mvpp2_cls_flow_read(port->priv, flow_index, &fe); + + hash_opts = mvpp2_flow_get_hek_fields(&fe); + + seq_printf(s, "0x%04x\n", hash_opts); + + return 0; +} + +DEFINE_SHOW_ATTRIBUTE(mvpp2_dbgfs_port_flow_hash_opt); + +static int mvpp2_dbgfs_port_flow_engine_show(struct seq_file *s, void *unused) +{ + struct mvpp2_dbgfs_port_flow_entry *entry = s->private; + struct mvpp2_port *port = entry->port; + struct mvpp2_cls_flow_entry fe; + const struct mvpp2_cls_flow *f; + int flow_index, engine; + + f = mvpp2_cls_flow_get(entry->dbg_fe->flow); + if (!f) + return -EINVAL; + + flow_index = MVPP2_CLS_FLT_HASH_ENTRY(entry->port->id, f->flow_id); + + mvpp2_cls_flow_read(port->priv, flow_index, &fe); + + engine = mvpp2_cls_flow_eng_get(&fe); + + seq_printf(s, "%d\n", engine); + + return 0; +} + +DEFINE_SHOW_ATTRIBUTE(mvpp2_dbgfs_port_flow_engine); + +static int mvpp2_dbgfs_flow_c2_hits_show(struct seq_file *s, void *unused) +{ + struct mvpp2_dbgfs_c2_entry *entry = s->private; + u32 hits; + + hits = mvpp2_cls_c2_hit_count(entry->priv, entry->id); + + seq_printf(s, "%u\n", hits); + + return 0; +} + +DEFINE_SHOW_ATTRIBUTE(mvpp2_dbgfs_flow_c2_hits); + +static int mvpp2_dbgfs_flow_c2_rxq_show(struct seq_file *s, void *unused) +{ + struct mvpp2_dbgfs_c2_entry *entry = s->private; + struct mvpp2_cls_c2_entry c2; + u8 qh, ql; + + mvpp2_cls_c2_read(entry->priv, entry->id, &c2); + + qh = (c2.attr[0] >> MVPP22_CLS_C2_ATTR0_QHIGH_OFFS) & + MVPP22_CLS_C2_ATTR0_QHIGH_MASK; + + ql = (c2.attr[0] >> MVPP22_CLS_C2_ATTR0_QLOW_OFFS) & + MVPP22_CLS_C2_ATTR0_QLOW_MASK; + + seq_printf(s, "%d\n", (qh << 3 | ql)); + + return 0; +} + +DEFINE_SHOW_ATTRIBUTE(mvpp2_dbgfs_flow_c2_rxq); + +static int mvpp2_dbgfs_flow_c2_enable_show(struct seq_file *s, void *unused) +{ + struct mvpp2_dbgfs_c2_entry *entry = s->private; + struct mvpp2_cls_c2_entry c2; + int enabled; + + mvpp2_cls_c2_read(entry->priv, entry->id, &c2); + + enabled = !!(c2.attr[2] & MVPP22_CLS_C2_ATTR2_RSS_EN); + + seq_printf(s, "%d\n", enabled); + + return 0; +} + +DEFINE_SHOW_ATTRIBUTE(mvpp2_dbgfs_flow_c2_enable); + +static int mvpp2_dbgfs_port_vid_show(struct seq_file *s, void *unused) +{ + struct mvpp2_port *port = s->private; + unsigned char byte[2], enable[2]; + struct mvpp2 *priv = port->priv; + struct mvpp2_prs_entry pe; + unsigned long pmap; + u16 rvid; + int tid; + + for (tid = MVPP2_PRS_VID_PORT_FIRST(port->id); + tid <= MVPP2_PRS_VID_PORT_LAST(port->id); tid++) { + mvpp2_prs_init_from_hw(priv, &pe, tid); + + pmap = mvpp2_prs_tcam_port_map_get(&pe); + + if (!priv->prs_shadow[tid].valid) + continue; + + if (!test_bit(port->id, &pmap)) + continue; + + mvpp2_prs_tcam_data_byte_get(&pe, 2, &byte[0], &enable[0]); + mvpp2_prs_tcam_data_byte_get(&pe, 3, &byte[1], &enable[1]); + + rvid = ((byte[0] & 0xf) << 8) + byte[1]; + + seq_printf(s, "%u\n", rvid); + } + + return 0; +} + +DEFINE_SHOW_ATTRIBUTE(mvpp2_dbgfs_port_vid); + +static int mvpp2_dbgfs_port_parser_show(struct seq_file *s, void *unused) +{ + struct mvpp2_port *port = s->private; + struct mvpp2 *priv = port->priv; + struct mvpp2_prs_entry pe; + unsigned long pmap; + int i; + + for (i = 0; i < MVPP2_PRS_TCAM_SRAM_SIZE; i++) { + mvpp2_prs_init_from_hw(port->priv, &pe, i); + + pmap = mvpp2_prs_tcam_port_map_get(&pe); + if (priv->prs_shadow[i].valid && test_bit(port->id, &pmap)) + seq_printf(s, "%03d\n", i); + } + + return 0; +} + +DEFINE_SHOW_ATTRIBUTE(mvpp2_dbgfs_port_parser); + +static int mvpp2_dbgfs_filter_show(struct seq_file *s, void *unused) +{ + struct mvpp2_port *port = s->private; + struct mvpp2 *priv = port->priv; + struct mvpp2_prs_entry pe; + unsigned long pmap; + int index, tid; + + for (tid = MVPP2_PE_MAC_RANGE_START; + tid <= MVPP2_PE_MAC_RANGE_END; tid++) { + unsigned char da[ETH_ALEN], da_mask[ETH_ALEN]; + + if (!priv->prs_shadow[tid].valid || + priv->prs_shadow[tid].lu != MVPP2_PRS_LU_MAC || + priv->prs_shadow[tid].udf != MVPP2_PRS_UDF_MAC_DEF) + continue; + + mvpp2_prs_init_from_hw(priv, &pe, tid); + + pmap = mvpp2_prs_tcam_port_map_get(&pe); + + /* We only want entries active on this port */ + if (!test_bit(port->id, &pmap)) + continue; + + /* Read mac addr from entry */ + for (index = 0; index < ETH_ALEN; index++) + mvpp2_prs_tcam_data_byte_get(&pe, index, &da[index], + &da_mask[index]); + + seq_printf(s, "%pM\n", da); + } + + return 0; +} + +DEFINE_SHOW_ATTRIBUTE(mvpp2_dbgfs_filter); + +static int mvpp2_dbgfs_prs_lu_show(struct seq_file *s, void *unused) +{ + struct mvpp2_dbgfs_prs_entry *entry = s->private; + struct mvpp2 *priv = entry->priv; + + seq_printf(s, "%x\n", priv->prs_shadow[entry->tid].lu); + + return 0; +} + +DEFINE_SHOW_ATTRIBUTE(mvpp2_dbgfs_prs_lu); + +static int mvpp2_dbgfs_prs_pmap_show(struct seq_file *s, void *unused) +{ + struct mvpp2_dbgfs_prs_entry *entry = s->private; + struct mvpp2_prs_entry pe; + unsigned int pmap; + + mvpp2_prs_init_from_hw(entry->priv, &pe, entry->tid); + + pmap = mvpp2_prs_tcam_port_map_get(&pe); + pmap &= MVPP2_PRS_PORT_MASK; + + seq_printf(s, "%02x\n", pmap); + + return 0; +} + +DEFINE_SHOW_ATTRIBUTE(mvpp2_dbgfs_prs_pmap); + +static int mvpp2_dbgfs_prs_ai_show(struct seq_file *s, void *unused) +{ + struct mvpp2_dbgfs_prs_entry *entry = s->private; + struct mvpp2_prs_entry pe; + unsigned char ai, ai_mask; + + mvpp2_prs_init_from_hw(entry->priv, &pe, entry->tid); + + ai = pe.tcam[MVPP2_PRS_TCAM_AI_WORD] & MVPP2_PRS_AI_MASK; + ai_mask = (pe.tcam[MVPP2_PRS_TCAM_AI_WORD] >> 16) & MVPP2_PRS_AI_MASK; + + seq_printf(s, "%02x %02x\n", ai, ai_mask); + + return 0; +} + +DEFINE_SHOW_ATTRIBUTE(mvpp2_dbgfs_prs_ai); + +static int mvpp2_dbgfs_prs_hdata_show(struct seq_file *s, void *unused) +{ + struct mvpp2_dbgfs_prs_entry *entry = s->private; + struct mvpp2_prs_entry pe; + unsigned char data[8], mask[8]; + int i; + + mvpp2_prs_init_from_hw(entry->priv, &pe, entry->tid); + + for (i = 0; i < 8; i++) + mvpp2_prs_tcam_data_byte_get(&pe, i, &data[i], &mask[i]); + + seq_printf(s, "%*phN %*phN\n", 8, data, 8, mask); + + return 0; +} + +DEFINE_SHOW_ATTRIBUTE(mvpp2_dbgfs_prs_hdata); + +static int mvpp2_dbgfs_prs_sram_show(struct seq_file *s, void *unused) +{ + struct mvpp2_dbgfs_prs_entry *entry = s->private; + struct mvpp2_prs_entry pe; + + mvpp2_prs_init_from_hw(entry->priv, &pe, entry->tid); + + seq_printf(s, "%*phN\n", 14, pe.sram); + + return 0; +} + +DEFINE_SHOW_ATTRIBUTE(mvpp2_dbgfs_prs_sram); + +static int mvpp2_dbgfs_prs_hits_show(struct seq_file *s, void *unused) +{ + struct mvpp2_dbgfs_prs_entry *entry = s->private; + int val; + + val = mvpp2_prs_hits(entry->priv, entry->tid); + if (val < 0) + return val; + + seq_printf(s, "%d\n", val); + + return 0; +} + +DEFINE_SHOW_ATTRIBUTE(mvpp2_dbgfs_prs_hits); + +static int mvpp2_dbgfs_prs_valid_show(struct seq_file *s, void *unused) +{ + struct mvpp2_dbgfs_prs_entry *entry = s->private; + struct mvpp2 *priv = entry->priv; + int tid = entry->tid; + + seq_printf(s, "%d\n", priv->prs_shadow[tid].valid ? 1 : 0); + + return 0; +} + +DEFINE_SHOW_ATTRIBUTE(mvpp2_dbgfs_prs_valid); + +static int mvpp2_dbgfs_flow_port_init(struct dentry *parent, + struct mvpp2_port *port, + struct mvpp2_dbgfs_flow_entry *entry) +{ + struct mvpp2_dbgfs_port_flow_entry *port_entry; + struct dentry *port_dir; + + port_dir = debugfs_create_dir(port->dev->name, parent); + + port_entry = &port->priv->dbgfs_entries->port_flow_entries[port->id]; + + port_entry->port = port; + port_entry->dbg_fe = entry; + + debugfs_create_file("hash_opts", 0444, port_dir, port_entry, + &mvpp2_dbgfs_port_flow_hash_opt_fops); + + debugfs_create_file("engine", 0444, port_dir, port_entry, + &mvpp2_dbgfs_port_flow_engine_fops); + + return 0; +} + +static int mvpp2_dbgfs_flow_entry_init(struct dentry *parent, + struct mvpp2 *priv, int flow) +{ + struct mvpp2_dbgfs_flow_entry *entry; + struct dentry *flow_entry_dir; + char flow_entry_name[10]; + int i, ret; + + sprintf(flow_entry_name, "%02d", flow); + + flow_entry_dir = debugfs_create_dir(flow_entry_name, parent); + + entry = &priv->dbgfs_entries->flow_entries[flow]; + + entry->flow = flow; + entry->priv = priv; + + debugfs_create_file("dec_hits", 0444, flow_entry_dir, entry, + &mvpp2_dbgfs_flow_dec_hits_fops); + + debugfs_create_file("type", 0444, flow_entry_dir, entry, + &mvpp2_dbgfs_flow_type_fops); + + debugfs_create_file("id", 0444, flow_entry_dir, entry, + &mvpp2_dbgfs_flow_id_fops); + + /* Create entry for each port */ + for (i = 0; i < priv->port_count; i++) { + ret = mvpp2_dbgfs_flow_port_init(flow_entry_dir, + priv->port_list[i], entry); + if (ret) + return ret; + } + + return 0; +} + +static int mvpp2_dbgfs_flow_init(struct dentry *parent, struct mvpp2 *priv) +{ + struct dentry *flow_dir; + int i, ret; + + flow_dir = debugfs_create_dir("flows", parent); + + for (i = 0; i < MVPP2_N_PRS_FLOWS; i++) { + ret = mvpp2_dbgfs_flow_entry_init(flow_dir, priv, i); + if (ret) + return ret; + } + + return 0; +} + +static int mvpp2_dbgfs_prs_entry_init(struct dentry *parent, + struct mvpp2 *priv, int tid) +{ + struct mvpp2_dbgfs_prs_entry *entry; + struct dentry *prs_entry_dir; + char prs_entry_name[10]; + + if (tid >= MVPP2_PRS_TCAM_SRAM_SIZE) + return -EINVAL; + + sprintf(prs_entry_name, "%03d", tid); + + prs_entry_dir = debugfs_create_dir(prs_entry_name, parent); + + entry = &priv->dbgfs_entries->prs_entries[tid]; + + entry->tid = tid; + entry->priv = priv; + + /* Create each attr */ + debugfs_create_file("sram", 0444, prs_entry_dir, entry, + &mvpp2_dbgfs_prs_sram_fops); + + debugfs_create_file("valid", 0644, prs_entry_dir, entry, + &mvpp2_dbgfs_prs_valid_fops); + + debugfs_create_file("lookup_id", 0644, prs_entry_dir, entry, + &mvpp2_dbgfs_prs_lu_fops); + + debugfs_create_file("ai", 0644, prs_entry_dir, entry, + &mvpp2_dbgfs_prs_ai_fops); + + debugfs_create_file("header_data", 0644, prs_entry_dir, entry, + &mvpp2_dbgfs_prs_hdata_fops); + + debugfs_create_file("hits", 0444, prs_entry_dir, entry, + &mvpp2_dbgfs_prs_hits_fops); + + debugfs_create_file("pmap", 0444, prs_entry_dir, entry, + &mvpp2_dbgfs_prs_pmap_fops); + + return 0; +} + +static int mvpp2_dbgfs_prs_init(struct dentry *parent, struct mvpp2 *priv) +{ + struct dentry *prs_dir; + int i, ret; + + prs_dir = debugfs_create_dir("parser", parent); + + for (i = 0; i < MVPP2_PRS_TCAM_SRAM_SIZE; i++) { + ret = mvpp2_dbgfs_prs_entry_init(prs_dir, priv, i); + if (ret) + return ret; + } + + return 0; +} + +static int mvpp2_dbgfs_c2_entry_init(struct dentry *parent, + struct mvpp2 *priv, int id) +{ + struct mvpp2_dbgfs_c2_entry *entry; + struct dentry *c2_entry_dir; + char c2_entry_name[10]; + + if (id >= MVPP22_CLS_C2_N_ENTRIES) + return -EINVAL; + + sprintf(c2_entry_name, "%03d", id); + + c2_entry_dir = debugfs_create_dir(c2_entry_name, parent); + if (!c2_entry_dir) + return -ENOMEM; + + entry = &priv->dbgfs_entries->c2_entries[id]; + + entry->id = id; + entry->priv = priv; + + debugfs_create_file("hits", 0444, c2_entry_dir, entry, + &mvpp2_dbgfs_flow_c2_hits_fops); + + debugfs_create_file("default_rxq", 0444, c2_entry_dir, entry, + &mvpp2_dbgfs_flow_c2_rxq_fops); + + debugfs_create_file("rss_enable", 0444, c2_entry_dir, entry, + &mvpp2_dbgfs_flow_c2_enable_fops); + + return 0; +} + +static int mvpp2_dbgfs_flow_tbl_entry_init(struct dentry *parent, + struct mvpp2 *priv, int id) +{ + struct mvpp2_dbgfs_flow_tbl_entry *entry; + struct dentry *flow_tbl_entry_dir; + char flow_tbl_entry_name[10]; + + if (id >= MVPP2_CLS_FLOWS_TBL_SIZE) + return -EINVAL; + + sprintf(flow_tbl_entry_name, "%03d", id); + + flow_tbl_entry_dir = debugfs_create_dir(flow_tbl_entry_name, parent); + if (!flow_tbl_entry_dir) + return -ENOMEM; + + entry = &priv->dbgfs_entries->flt_entries[id]; + + entry->id = id; + entry->priv = priv; + + debugfs_create_file("hits", 0444, flow_tbl_entry_dir, entry, + &mvpp2_dbgfs_flow_flt_hits_fops); + + return 0; +} + +static int mvpp2_dbgfs_cls_init(struct dentry *parent, struct mvpp2 *priv) +{ + struct dentry *cls_dir, *c2_dir, *flow_tbl_dir; + int i, ret; + + cls_dir = debugfs_create_dir("classifier", parent); + if (!cls_dir) + return -ENOMEM; + + c2_dir = debugfs_create_dir("c2", cls_dir); + if (!c2_dir) + return -ENOMEM; + + for (i = 0; i < MVPP22_CLS_C2_N_ENTRIES; i++) { + ret = mvpp2_dbgfs_c2_entry_init(c2_dir, priv, i); + if (ret) + return ret; + } + + flow_tbl_dir = debugfs_create_dir("flow_table", cls_dir); + if (!flow_tbl_dir) + return -ENOMEM; + + for (i = 0; i < MVPP2_CLS_FLOWS_TBL_SIZE; i++) { + ret = mvpp2_dbgfs_flow_tbl_entry_init(flow_tbl_dir, priv, i); + if (ret) + return ret; + } + + return 0; +} + +static int mvpp2_dbgfs_port_init(struct dentry *parent, + struct mvpp2_port *port) +{ + struct dentry *port_dir; + + port_dir = debugfs_create_dir(port->dev->name, parent); + + debugfs_create_file("parser_entries", 0444, port_dir, port, + &mvpp2_dbgfs_port_parser_fops); + + debugfs_create_file("mac_filter", 0444, port_dir, port, + &mvpp2_dbgfs_filter_fops); + + debugfs_create_file("vid_filter", 0444, port_dir, port, + &mvpp2_dbgfs_port_vid_fops); + + return 0; +} + +static struct dentry *mvpp2_root; + +void mvpp2_dbgfs_exit(void) +{ + debugfs_remove(mvpp2_root); +} + +void mvpp2_dbgfs_cleanup(struct mvpp2 *priv) +{ + debugfs_remove_recursive(priv->dbgfs_dir); + + kfree(priv->dbgfs_entries); +} + +void mvpp2_dbgfs_init(struct mvpp2 *priv, const char *name) +{ + struct dentry *mvpp2_dir; + int ret, i; + + if (!mvpp2_root) + mvpp2_root = debugfs_create_dir(MVPP2_DRIVER_NAME, NULL); + + mvpp2_dir = debugfs_create_dir(name, mvpp2_root); + + priv->dbgfs_dir = mvpp2_dir; + priv->dbgfs_entries = kzalloc(sizeof(*priv->dbgfs_entries), GFP_KERNEL); + if (!priv->dbgfs_entries) + goto err; + + ret = mvpp2_dbgfs_prs_init(mvpp2_dir, priv); + if (ret) + goto err; + + ret = mvpp2_dbgfs_cls_init(mvpp2_dir, priv); + if (ret) + goto err; + + for (i = 0; i < priv->port_count; i++) { + ret = mvpp2_dbgfs_port_init(mvpp2_dir, priv->port_list[i]); + if (ret) + goto err; + } + + ret = mvpp2_dbgfs_flow_init(mvpp2_dir, priv); + if (ret) + goto err; + + return; +err: + mvpp2_dbgfs_cleanup(priv); +} diff --git a/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c b/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c new file mode 100644 index 000000000..2f80ee84c --- /dev/null +++ b/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c @@ -0,0 +1,7756 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Driver for Marvell PPv2 network controller for Armada 375 SoC. + * + * Copyright (C) 2014 Marvell + * + * Marcin Wojtas <mw@semihalf.com> + */ + +#include <linux/acpi.h> +#include <linux/kernel.h> +#include <linux/netdevice.h> +#include <linux/etherdevice.h> +#include <linux/platform_device.h> +#include <linux/skbuff.h> +#include <linux/inetdevice.h> +#include <linux/mbus.h> +#include <linux/module.h> +#include <linux/mfd/syscon.h> +#include <linux/interrupt.h> +#include <linux/cpumask.h> +#include <linux/of.h> +#include <linux/of_irq.h> +#include <linux/of_mdio.h> +#include <linux/of_net.h> +#include <linux/of_address.h> +#include <linux/of_device.h> +#include <linux/phy.h> +#include <linux/phylink.h> +#include <linux/phy/phy.h> +#include <linux/ptp_classify.h> +#include <linux/clk.h> +#include <linux/hrtimer.h> +#include <linux/ktime.h> +#include <linux/regmap.h> +#include <uapi/linux/ppp_defs.h> +#include <net/ip.h> +#include <net/ipv6.h> +#include <net/tso.h> +#include <linux/bpf_trace.h> + +#include "mvpp2.h" +#include "mvpp2_prs.h" +#include "mvpp2_cls.h" + +enum mvpp2_bm_pool_log_num { + MVPP2_BM_SHORT, + MVPP2_BM_LONG, + MVPP2_BM_JUMBO, + MVPP2_BM_POOLS_NUM +}; + +static struct { + int pkt_size; + int buf_num; +} mvpp2_pools[MVPP2_BM_POOLS_NUM]; + +/* The prototype is added here to be used in start_dev when using ACPI. This + * will be removed once phylink is used for all modes (dt+ACPI). + */ +static void mvpp2_acpi_start(struct mvpp2_port *port); + +/* Queue modes */ +#define MVPP2_QDIST_SINGLE_MODE 0 +#define MVPP2_QDIST_MULTI_MODE 1 + +static int queue_mode = MVPP2_QDIST_MULTI_MODE; + +module_param(queue_mode, int, 0444); +MODULE_PARM_DESC(queue_mode, "Set queue_mode (single=0, multi=1)"); + +/* Utility/helper methods */ + +void mvpp2_write(struct mvpp2 *priv, u32 offset, u32 data) +{ + writel(data, priv->swth_base[0] + offset); +} + +u32 mvpp2_read(struct mvpp2 *priv, u32 offset) +{ + return readl(priv->swth_base[0] + offset); +} + +static u32 mvpp2_read_relaxed(struct mvpp2 *priv, u32 offset) +{ + return readl_relaxed(priv->swth_base[0] + offset); +} + +static inline u32 mvpp2_cpu_to_thread(struct mvpp2 *priv, int cpu) +{ + return cpu % priv->nthreads; +} + +static void mvpp2_cm3_write(struct mvpp2 *priv, u32 offset, u32 data) +{ + writel(data, priv->cm3_base + offset); +} + +static u32 mvpp2_cm3_read(struct mvpp2 *priv, u32 offset) +{ + return readl(priv->cm3_base + offset); +} + +static struct page_pool * +mvpp2_create_page_pool(struct device *dev, int num, int len, + enum dma_data_direction dma_dir) +{ + struct page_pool_params pp_params = { + /* internal DMA mapping in page_pool */ + .flags = PP_FLAG_DMA_MAP | PP_FLAG_DMA_SYNC_DEV, + .pool_size = num, + .nid = NUMA_NO_NODE, + .dev = dev, + .dma_dir = dma_dir, + .offset = MVPP2_SKB_HEADROOM, + .max_len = len, + }; + + return page_pool_create(&pp_params); +} + +/* These accessors should be used to access: + * + * - per-thread registers, where each thread has its own copy of the + * register. + * + * MVPP2_BM_VIRT_ALLOC_REG + * MVPP2_BM_ADDR_HIGH_ALLOC + * MVPP22_BM_ADDR_HIGH_RLS_REG + * MVPP2_BM_VIRT_RLS_REG + * MVPP2_ISR_RX_TX_CAUSE_REG + * MVPP2_ISR_RX_TX_MASK_REG + * MVPP2_TXQ_NUM_REG + * MVPP2_AGGR_TXQ_UPDATE_REG + * MVPP2_TXQ_RSVD_REQ_REG + * MVPP2_TXQ_RSVD_RSLT_REG + * MVPP2_TXQ_SENT_REG + * MVPP2_RXQ_NUM_REG + * + * - global registers that must be accessed through a specific thread + * window, because they are related to an access to a per-thread + * register + * + * MVPP2_BM_PHY_ALLOC_REG (related to MVPP2_BM_VIRT_ALLOC_REG) + * MVPP2_BM_PHY_RLS_REG (related to MVPP2_BM_VIRT_RLS_REG) + * MVPP2_RXQ_THRESH_REG (related to MVPP2_RXQ_NUM_REG) + * MVPP2_RXQ_DESC_ADDR_REG (related to MVPP2_RXQ_NUM_REG) + * MVPP2_RXQ_DESC_SIZE_REG (related to MVPP2_RXQ_NUM_REG) + * MVPP2_RXQ_INDEX_REG (related to MVPP2_RXQ_NUM_REG) + * MVPP2_TXQ_PENDING_REG (related to MVPP2_TXQ_NUM_REG) + * MVPP2_TXQ_DESC_ADDR_REG (related to MVPP2_TXQ_NUM_REG) + * MVPP2_TXQ_DESC_SIZE_REG (related to MVPP2_TXQ_NUM_REG) + * MVPP2_TXQ_INDEX_REG (related to MVPP2_TXQ_NUM_REG) + * MVPP2_TXQ_PENDING_REG (related to MVPP2_TXQ_NUM_REG) + * MVPP2_TXQ_PREF_BUF_REG (related to MVPP2_TXQ_NUM_REG) + * MVPP2_TXQ_PREF_BUF_REG (related to MVPP2_TXQ_NUM_REG) + */ +static void mvpp2_thread_write(struct mvpp2 *priv, unsigned int thread, + u32 offset, u32 data) +{ + writel(data, priv->swth_base[thread] + offset); +} + +static u32 mvpp2_thread_read(struct mvpp2 *priv, unsigned int thread, + u32 offset) +{ + return readl(priv->swth_base[thread] + offset); +} + +static void mvpp2_thread_write_relaxed(struct mvpp2 *priv, unsigned int thread, + u32 offset, u32 data) +{ + writel_relaxed(data, priv->swth_base[thread] + offset); +} + +static u32 mvpp2_thread_read_relaxed(struct mvpp2 *priv, unsigned int thread, + u32 offset) +{ + return readl_relaxed(priv->swth_base[thread] + offset); +} + +static dma_addr_t mvpp2_txdesc_dma_addr_get(struct mvpp2_port *port, + struct mvpp2_tx_desc *tx_desc) +{ + if (port->priv->hw_version == MVPP21) + return le32_to_cpu(tx_desc->pp21.buf_dma_addr); + else + return le64_to_cpu(tx_desc->pp22.buf_dma_addr_ptp) & + MVPP2_DESC_DMA_MASK; +} + +static void mvpp2_txdesc_dma_addr_set(struct mvpp2_port *port, + struct mvpp2_tx_desc *tx_desc, + dma_addr_t dma_addr) +{ + dma_addr_t addr, offset; + + addr = dma_addr & ~MVPP2_TX_DESC_ALIGN; + offset = dma_addr & MVPP2_TX_DESC_ALIGN; + + if (port->priv->hw_version == MVPP21) { + tx_desc->pp21.buf_dma_addr = cpu_to_le32(addr); + tx_desc->pp21.packet_offset = offset; + } else { + __le64 val = cpu_to_le64(addr); + + tx_desc->pp22.buf_dma_addr_ptp &= ~cpu_to_le64(MVPP2_DESC_DMA_MASK); + tx_desc->pp22.buf_dma_addr_ptp |= val; + tx_desc->pp22.packet_offset = offset; + } +} + +static size_t mvpp2_txdesc_size_get(struct mvpp2_port *port, + struct mvpp2_tx_desc *tx_desc) +{ + if (port->priv->hw_version == MVPP21) + return le16_to_cpu(tx_desc->pp21.data_size); + else + return le16_to_cpu(tx_desc->pp22.data_size); +} + +static void mvpp2_txdesc_size_set(struct mvpp2_port *port, + struct mvpp2_tx_desc *tx_desc, + size_t size) +{ + if (port->priv->hw_version == MVPP21) + tx_desc->pp21.data_size = cpu_to_le16(size); + else + tx_desc->pp22.data_size = cpu_to_le16(size); +} + +static void mvpp2_txdesc_txq_set(struct mvpp2_port *port, + struct mvpp2_tx_desc *tx_desc, + unsigned int txq) +{ + if (port->priv->hw_version == MVPP21) + tx_desc->pp21.phys_txq = txq; + else + tx_desc->pp22.phys_txq = txq; +} + +static void mvpp2_txdesc_cmd_set(struct mvpp2_port *port, + struct mvpp2_tx_desc *tx_desc, + unsigned int command) +{ + if (port->priv->hw_version == MVPP21) + tx_desc->pp21.command = cpu_to_le32(command); + else + tx_desc->pp22.command = cpu_to_le32(command); +} + +static unsigned int mvpp2_txdesc_offset_get(struct mvpp2_port *port, + struct mvpp2_tx_desc *tx_desc) +{ + if (port->priv->hw_version == MVPP21) + return tx_desc->pp21.packet_offset; + else + return tx_desc->pp22.packet_offset; +} + +static dma_addr_t mvpp2_rxdesc_dma_addr_get(struct mvpp2_port *port, + struct mvpp2_rx_desc *rx_desc) +{ + if (port->priv->hw_version == MVPP21) + return le32_to_cpu(rx_desc->pp21.buf_dma_addr); + else + return le64_to_cpu(rx_desc->pp22.buf_dma_addr_key_hash) & + MVPP2_DESC_DMA_MASK; +} + +static unsigned long mvpp2_rxdesc_cookie_get(struct mvpp2_port *port, + struct mvpp2_rx_desc *rx_desc) +{ + if (port->priv->hw_version == MVPP21) + return le32_to_cpu(rx_desc->pp21.buf_cookie); + else + return le64_to_cpu(rx_desc->pp22.buf_cookie_misc) & + MVPP2_DESC_DMA_MASK; +} + +static size_t mvpp2_rxdesc_size_get(struct mvpp2_port *port, + struct mvpp2_rx_desc *rx_desc) +{ + if (port->priv->hw_version == MVPP21) + return le16_to_cpu(rx_desc->pp21.data_size); + else + return le16_to_cpu(rx_desc->pp22.data_size); +} + +static u32 mvpp2_rxdesc_status_get(struct mvpp2_port *port, + struct mvpp2_rx_desc *rx_desc) +{ + if (port->priv->hw_version == MVPP21) + return le32_to_cpu(rx_desc->pp21.status); + else + return le32_to_cpu(rx_desc->pp22.status); +} + +static void mvpp2_txq_inc_get(struct mvpp2_txq_pcpu *txq_pcpu) +{ + txq_pcpu->txq_get_index++; + if (txq_pcpu->txq_get_index == txq_pcpu->size) + txq_pcpu->txq_get_index = 0; +} + +static void mvpp2_txq_inc_put(struct mvpp2_port *port, + struct mvpp2_txq_pcpu *txq_pcpu, + void *data, + struct mvpp2_tx_desc *tx_desc, + enum mvpp2_tx_buf_type buf_type) +{ + struct mvpp2_txq_pcpu_buf *tx_buf = + txq_pcpu->buffs + txq_pcpu->txq_put_index; + tx_buf->type = buf_type; + if (buf_type == MVPP2_TYPE_SKB) + tx_buf->skb = data; + else + tx_buf->xdpf = data; + tx_buf->size = mvpp2_txdesc_size_get(port, tx_desc); + tx_buf->dma = mvpp2_txdesc_dma_addr_get(port, tx_desc) + + mvpp2_txdesc_offset_get(port, tx_desc); + txq_pcpu->txq_put_index++; + if (txq_pcpu->txq_put_index == txq_pcpu->size) + txq_pcpu->txq_put_index = 0; +} + +/* Get number of maximum RXQ */ +static int mvpp2_get_nrxqs(struct mvpp2 *priv) +{ + unsigned int nrxqs; + + if (priv->hw_version >= MVPP22 && queue_mode == MVPP2_QDIST_SINGLE_MODE) + return 1; + + /* According to the PPv2.2 datasheet and our experiments on + * PPv2.1, RX queues have an allocation granularity of 4 (when + * more than a single one on PPv2.2). + * Round up to nearest multiple of 4. + */ + nrxqs = (num_possible_cpus() + 3) & ~0x3; + if (nrxqs > MVPP2_PORT_MAX_RXQ) + nrxqs = MVPP2_PORT_MAX_RXQ; + + return nrxqs; +} + +/* Get number of physical egress port */ +static inline int mvpp2_egress_port(struct mvpp2_port *port) +{ + return MVPP2_MAX_TCONT + port->id; +} + +/* Get number of physical TXQ */ +static inline int mvpp2_txq_phys(int port, int txq) +{ + return (MVPP2_MAX_TCONT + port) * MVPP2_MAX_TXQ + txq; +} + +/* Returns a struct page if page_pool is set, otherwise a buffer */ +static void *mvpp2_frag_alloc(const struct mvpp2_bm_pool *pool, + struct page_pool *page_pool) +{ + if (page_pool) + return page_pool_dev_alloc_pages(page_pool); + + if (likely(pool->frag_size <= PAGE_SIZE)) + return netdev_alloc_frag(pool->frag_size); + + return kmalloc(pool->frag_size, GFP_ATOMIC); +} + +static void mvpp2_frag_free(const struct mvpp2_bm_pool *pool, + struct page_pool *page_pool, void *data) +{ + if (page_pool) + page_pool_put_full_page(page_pool, virt_to_head_page(data), false); + else if (likely(pool->frag_size <= PAGE_SIZE)) + skb_free_frag(data); + else + kfree(data); +} + +/* Buffer Manager configuration routines */ + +/* Create pool */ +static int mvpp2_bm_pool_create(struct device *dev, struct mvpp2 *priv, + struct mvpp2_bm_pool *bm_pool, int size) +{ + u32 val; + + /* Number of buffer pointers must be a multiple of 16, as per + * hardware constraints + */ + if (!IS_ALIGNED(size, 16)) + return -EINVAL; + + /* PPv2.1 needs 8 bytes per buffer pointer, PPv2.2 and PPv2.3 needs 16 + * bytes per buffer pointer + */ + if (priv->hw_version == MVPP21) + bm_pool->size_bytes = 2 * sizeof(u32) * size; + else + bm_pool->size_bytes = 2 * sizeof(u64) * size; + + bm_pool->virt_addr = dma_alloc_coherent(dev, bm_pool->size_bytes, + &bm_pool->dma_addr, + GFP_KERNEL); + if (!bm_pool->virt_addr) + return -ENOMEM; + + if (!IS_ALIGNED((unsigned long)bm_pool->virt_addr, + MVPP2_BM_POOL_PTR_ALIGN)) { + dma_free_coherent(dev, bm_pool->size_bytes, + bm_pool->virt_addr, bm_pool->dma_addr); + dev_err(dev, "BM pool %d is not %d bytes aligned\n", + bm_pool->id, MVPP2_BM_POOL_PTR_ALIGN); + return -ENOMEM; + } + + mvpp2_write(priv, MVPP2_BM_POOL_BASE_REG(bm_pool->id), + lower_32_bits(bm_pool->dma_addr)); + mvpp2_write(priv, MVPP2_BM_POOL_SIZE_REG(bm_pool->id), size); + + val = mvpp2_read(priv, MVPP2_BM_POOL_CTRL_REG(bm_pool->id)); + val |= MVPP2_BM_START_MASK; + + val &= ~MVPP2_BM_LOW_THRESH_MASK; + val &= ~MVPP2_BM_HIGH_THRESH_MASK; + + /* Set 8 Pools BPPI threshold for MVPP23 */ + if (priv->hw_version == MVPP23) { + val |= MVPP2_BM_LOW_THRESH_VALUE(MVPP23_BM_BPPI_LOW_THRESH); + val |= MVPP2_BM_HIGH_THRESH_VALUE(MVPP23_BM_BPPI_HIGH_THRESH); + } else { + val |= MVPP2_BM_LOW_THRESH_VALUE(MVPP2_BM_BPPI_LOW_THRESH); + val |= MVPP2_BM_HIGH_THRESH_VALUE(MVPP2_BM_BPPI_HIGH_THRESH); + } + + mvpp2_write(priv, MVPP2_BM_POOL_CTRL_REG(bm_pool->id), val); + + bm_pool->size = size; + bm_pool->pkt_size = 0; + bm_pool->buf_num = 0; + + return 0; +} + +/* Set pool buffer size */ +static void mvpp2_bm_pool_bufsize_set(struct mvpp2 *priv, + struct mvpp2_bm_pool *bm_pool, + int buf_size) +{ + u32 val; + + bm_pool->buf_size = buf_size; + + val = ALIGN(buf_size, 1 << MVPP2_POOL_BUF_SIZE_OFFSET); + mvpp2_write(priv, MVPP2_POOL_BUF_SIZE_REG(bm_pool->id), val); +} + +static void mvpp2_bm_bufs_get_addrs(struct device *dev, struct mvpp2 *priv, + struct mvpp2_bm_pool *bm_pool, + dma_addr_t *dma_addr, + phys_addr_t *phys_addr) +{ + unsigned int thread = mvpp2_cpu_to_thread(priv, get_cpu()); + + *dma_addr = mvpp2_thread_read(priv, thread, + MVPP2_BM_PHY_ALLOC_REG(bm_pool->id)); + *phys_addr = mvpp2_thread_read(priv, thread, MVPP2_BM_VIRT_ALLOC_REG); + + if (priv->hw_version >= MVPP22) { + u32 val; + u32 dma_addr_highbits, phys_addr_highbits; + + val = mvpp2_thread_read(priv, thread, MVPP22_BM_ADDR_HIGH_ALLOC); + dma_addr_highbits = (val & MVPP22_BM_ADDR_HIGH_PHYS_MASK); + phys_addr_highbits = (val & MVPP22_BM_ADDR_HIGH_VIRT_MASK) >> + MVPP22_BM_ADDR_HIGH_VIRT_SHIFT; + + if (sizeof(dma_addr_t) == 8) + *dma_addr |= (u64)dma_addr_highbits << 32; + + if (sizeof(phys_addr_t) == 8) + *phys_addr |= (u64)phys_addr_highbits << 32; + } + + put_cpu(); +} + +/* Free all buffers from the pool */ +static void mvpp2_bm_bufs_free(struct device *dev, struct mvpp2 *priv, + struct mvpp2_bm_pool *bm_pool, int buf_num) +{ + struct page_pool *pp = NULL; + int i; + + if (buf_num > bm_pool->buf_num) { + WARN(1, "Pool does not have so many bufs pool(%d) bufs(%d)\n", + bm_pool->id, buf_num); + buf_num = bm_pool->buf_num; + } + + if (priv->percpu_pools) + pp = priv->page_pool[bm_pool->id]; + + for (i = 0; i < buf_num; i++) { + dma_addr_t buf_dma_addr; + phys_addr_t buf_phys_addr; + void *data; + + mvpp2_bm_bufs_get_addrs(dev, priv, bm_pool, + &buf_dma_addr, &buf_phys_addr); + + if (!pp) + dma_unmap_single(dev, buf_dma_addr, + bm_pool->buf_size, DMA_FROM_DEVICE); + + data = (void *)phys_to_virt(buf_phys_addr); + if (!data) + break; + + mvpp2_frag_free(bm_pool, pp, data); + } + + /* Update BM driver with number of buffers removed from pool */ + bm_pool->buf_num -= i; +} + +/* Check number of buffers in BM pool */ +static int mvpp2_check_hw_buf_num(struct mvpp2 *priv, struct mvpp2_bm_pool *bm_pool) +{ + int buf_num = 0; + + buf_num += mvpp2_read(priv, MVPP2_BM_POOL_PTRS_NUM_REG(bm_pool->id)) & + MVPP22_BM_POOL_PTRS_NUM_MASK; + buf_num += mvpp2_read(priv, MVPP2_BM_BPPI_PTRS_NUM_REG(bm_pool->id)) & + MVPP2_BM_BPPI_PTR_NUM_MASK; + + /* HW has one buffer ready which is not reflected in the counters */ + if (buf_num) + buf_num += 1; + + return buf_num; +} + +/* Cleanup pool */ +static int mvpp2_bm_pool_destroy(struct device *dev, struct mvpp2 *priv, + struct mvpp2_bm_pool *bm_pool) +{ + int buf_num; + u32 val; + + buf_num = mvpp2_check_hw_buf_num(priv, bm_pool); + mvpp2_bm_bufs_free(dev, priv, bm_pool, buf_num); + + /* Check buffer counters after free */ + buf_num = mvpp2_check_hw_buf_num(priv, bm_pool); + if (buf_num) { + WARN(1, "cannot free all buffers in pool %d, buf_num left %d\n", + bm_pool->id, bm_pool->buf_num); + return 0; + } + + val = mvpp2_read(priv, MVPP2_BM_POOL_CTRL_REG(bm_pool->id)); + val |= MVPP2_BM_STOP_MASK; + mvpp2_write(priv, MVPP2_BM_POOL_CTRL_REG(bm_pool->id), val); + + if (priv->percpu_pools) { + page_pool_destroy(priv->page_pool[bm_pool->id]); + priv->page_pool[bm_pool->id] = NULL; + } + + dma_free_coherent(dev, bm_pool->size_bytes, + bm_pool->virt_addr, + bm_pool->dma_addr); + return 0; +} + +static int mvpp2_bm_pools_init(struct device *dev, struct mvpp2 *priv) +{ + int i, err, size, poolnum = MVPP2_BM_POOLS_NUM; + struct mvpp2_bm_pool *bm_pool; + + if (priv->percpu_pools) + poolnum = mvpp2_get_nrxqs(priv) * 2; + + /* Create all pools with maximum size */ + size = MVPP2_BM_POOL_SIZE_MAX; + for (i = 0; i < poolnum; i++) { + bm_pool = &priv->bm_pools[i]; + bm_pool->id = i; + err = mvpp2_bm_pool_create(dev, priv, bm_pool, size); + if (err) + goto err_unroll_pools; + mvpp2_bm_pool_bufsize_set(priv, bm_pool, 0); + } + return 0; + +err_unroll_pools: + dev_err(dev, "failed to create BM pool %d, size %d\n", i, size); + for (i = i - 1; i >= 0; i--) + mvpp2_bm_pool_destroy(dev, priv, &priv->bm_pools[i]); + return err; +} + +/* Routine enable PPv23 8 pool mode */ +static void mvpp23_bm_set_8pool_mode(struct mvpp2 *priv) +{ + int val; + + val = mvpp2_read(priv, MVPP22_BM_POOL_BASE_ADDR_HIGH_REG); + val |= MVPP23_BM_8POOL_MODE; + mvpp2_write(priv, MVPP22_BM_POOL_BASE_ADDR_HIGH_REG, val); +} + +/* Cleanup pool before actual initialization in the OS */ +static void mvpp2_bm_pool_cleanup(struct mvpp2 *priv, int pool_id) +{ + unsigned int thread = mvpp2_cpu_to_thread(priv, get_cpu()); + u32 val; + int i; + + /* Drain the BM from all possible residues left by firmware */ + for (i = 0; i < MVPP2_BM_POOL_SIZE_MAX; i++) + mvpp2_thread_read(priv, thread, MVPP2_BM_PHY_ALLOC_REG(pool_id)); + + put_cpu(); + + /* Stop the BM pool */ + val = mvpp2_read(priv, MVPP2_BM_POOL_CTRL_REG(pool_id)); + val |= MVPP2_BM_STOP_MASK; + mvpp2_write(priv, MVPP2_BM_POOL_CTRL_REG(pool_id), val); +} + +static int mvpp2_bm_init(struct device *dev, struct mvpp2 *priv) +{ + enum dma_data_direction dma_dir = DMA_FROM_DEVICE; + int i, err, poolnum = MVPP2_BM_POOLS_NUM; + struct mvpp2_port *port; + + if (priv->percpu_pools) + poolnum = mvpp2_get_nrxqs(priv) * 2; + + /* Clean up the pool state in case it contains stale state */ + for (i = 0; i < poolnum; i++) + mvpp2_bm_pool_cleanup(priv, i); + + if (priv->percpu_pools) { + for (i = 0; i < priv->port_count; i++) { + port = priv->port_list[i]; + if (port->xdp_prog) { + dma_dir = DMA_BIDIRECTIONAL; + break; + } + } + + for (i = 0; i < poolnum; i++) { + /* the pool in use */ + int pn = i / (poolnum / 2); + + priv->page_pool[i] = + mvpp2_create_page_pool(dev, + mvpp2_pools[pn].buf_num, + mvpp2_pools[pn].pkt_size, + dma_dir); + if (IS_ERR(priv->page_pool[i])) { + int j; + + for (j = 0; j < i; j++) { + page_pool_destroy(priv->page_pool[j]); + priv->page_pool[j] = NULL; + } + return PTR_ERR(priv->page_pool[i]); + } + } + } + + dev_info(dev, "using %d %s buffers\n", poolnum, + priv->percpu_pools ? "per-cpu" : "shared"); + + for (i = 0; i < poolnum; i++) { + /* Mask BM all interrupts */ + mvpp2_write(priv, MVPP2_BM_INTR_MASK_REG(i), 0); + /* Clear BM cause register */ + mvpp2_write(priv, MVPP2_BM_INTR_CAUSE_REG(i), 0); + } + + /* Allocate and initialize BM pools */ + priv->bm_pools = devm_kcalloc(dev, poolnum, + sizeof(*priv->bm_pools), GFP_KERNEL); + if (!priv->bm_pools) + return -ENOMEM; + + if (priv->hw_version == MVPP23) + mvpp23_bm_set_8pool_mode(priv); + + err = mvpp2_bm_pools_init(dev, priv); + if (err < 0) + return err; + return 0; +} + +static void mvpp2_setup_bm_pool(void) +{ + /* Short pool */ + mvpp2_pools[MVPP2_BM_SHORT].buf_num = MVPP2_BM_SHORT_BUF_NUM; + mvpp2_pools[MVPP2_BM_SHORT].pkt_size = MVPP2_BM_SHORT_PKT_SIZE; + + /* Long pool */ + mvpp2_pools[MVPP2_BM_LONG].buf_num = MVPP2_BM_LONG_BUF_NUM; + mvpp2_pools[MVPP2_BM_LONG].pkt_size = MVPP2_BM_LONG_PKT_SIZE; + + /* Jumbo pool */ + mvpp2_pools[MVPP2_BM_JUMBO].buf_num = MVPP2_BM_JUMBO_BUF_NUM; + mvpp2_pools[MVPP2_BM_JUMBO].pkt_size = MVPP2_BM_JUMBO_PKT_SIZE; +} + +/* Attach long pool to rxq */ +static void mvpp2_rxq_long_pool_set(struct mvpp2_port *port, + int lrxq, int long_pool) +{ + u32 val, mask; + int prxq; + + /* Get queue physical ID */ + prxq = port->rxqs[lrxq]->id; + + if (port->priv->hw_version == MVPP21) + mask = MVPP21_RXQ_POOL_LONG_MASK; + else + mask = MVPP22_RXQ_POOL_LONG_MASK; + + val = mvpp2_read(port->priv, MVPP2_RXQ_CONFIG_REG(prxq)); + val &= ~mask; + val |= (long_pool << MVPP2_RXQ_POOL_LONG_OFFS) & mask; + mvpp2_write(port->priv, MVPP2_RXQ_CONFIG_REG(prxq), val); +} + +/* Attach short pool to rxq */ +static void mvpp2_rxq_short_pool_set(struct mvpp2_port *port, + int lrxq, int short_pool) +{ + u32 val, mask; + int prxq; + + /* Get queue physical ID */ + prxq = port->rxqs[lrxq]->id; + + if (port->priv->hw_version == MVPP21) + mask = MVPP21_RXQ_POOL_SHORT_MASK; + else + mask = MVPP22_RXQ_POOL_SHORT_MASK; + + val = mvpp2_read(port->priv, MVPP2_RXQ_CONFIG_REG(prxq)); + val &= ~mask; + val |= (short_pool << MVPP2_RXQ_POOL_SHORT_OFFS) & mask; + mvpp2_write(port->priv, MVPP2_RXQ_CONFIG_REG(prxq), val); +} + +static void *mvpp2_buf_alloc(struct mvpp2_port *port, + struct mvpp2_bm_pool *bm_pool, + struct page_pool *page_pool, + dma_addr_t *buf_dma_addr, + phys_addr_t *buf_phys_addr, + gfp_t gfp_mask) +{ + dma_addr_t dma_addr; + struct page *page; + void *data; + + data = mvpp2_frag_alloc(bm_pool, page_pool); + if (!data) + return NULL; + + if (page_pool) { + page = (struct page *)data; + dma_addr = page_pool_get_dma_addr(page); + data = page_to_virt(page); + } else { + dma_addr = dma_map_single(port->dev->dev.parent, data, + MVPP2_RX_BUF_SIZE(bm_pool->pkt_size), + DMA_FROM_DEVICE); + if (unlikely(dma_mapping_error(port->dev->dev.parent, dma_addr))) { + mvpp2_frag_free(bm_pool, NULL, data); + return NULL; + } + } + *buf_dma_addr = dma_addr; + *buf_phys_addr = virt_to_phys(data); + + return data; +} + +/* Routine enable flow control for RXQs condition */ +static void mvpp2_rxq_enable_fc(struct mvpp2_port *port) +{ + int val, cm3_state, host_id, q; + int fq = port->first_rxq; + unsigned long flags; + + spin_lock_irqsave(&port->priv->mss_spinlock, flags); + + /* Remove Flow control enable bit to prevent race between FW and Kernel + * If Flow control was enabled, it would be re-enabled. + */ + val = mvpp2_cm3_read(port->priv, MSS_FC_COM_REG); + cm3_state = (val & FLOW_CONTROL_ENABLE_BIT); + val &= ~FLOW_CONTROL_ENABLE_BIT; + mvpp2_cm3_write(port->priv, MSS_FC_COM_REG, val); + + /* Set same Flow control for all RXQs */ + for (q = 0; q < port->nrxqs; q++) { + /* Set stop and start Flow control RXQ thresholds */ + val = MSS_THRESHOLD_START; + val |= (MSS_THRESHOLD_STOP << MSS_RXQ_TRESH_STOP_OFFS); + mvpp2_cm3_write(port->priv, MSS_RXQ_TRESH_REG(q, fq), val); + + val = mvpp2_cm3_read(port->priv, MSS_RXQ_ASS_REG(q, fq)); + /* Set RXQ port ID */ + val &= ~(MSS_RXQ_ASS_PORTID_MASK << MSS_RXQ_ASS_Q_BASE(q, fq)); + val |= (port->id << MSS_RXQ_ASS_Q_BASE(q, fq)); + val &= ~(MSS_RXQ_ASS_HOSTID_MASK << (MSS_RXQ_ASS_Q_BASE(q, fq) + + MSS_RXQ_ASS_HOSTID_OFFS)); + + /* Calculate RXQ host ID: + * In Single queue mode: Host ID equal to Host ID used for + * shared RX interrupt + * In Multi queue mode: Host ID equal to number of + * RXQ ID / number of CoS queues + * In Single resource mode: Host ID always equal to 0 + */ + if (queue_mode == MVPP2_QDIST_SINGLE_MODE) + host_id = port->nqvecs; + else if (queue_mode == MVPP2_QDIST_MULTI_MODE) + host_id = q; + else + host_id = 0; + + /* Set RXQ host ID */ + val |= (host_id << (MSS_RXQ_ASS_Q_BASE(q, fq) + + MSS_RXQ_ASS_HOSTID_OFFS)); + + mvpp2_cm3_write(port->priv, MSS_RXQ_ASS_REG(q, fq), val); + } + + /* Notify Firmware that Flow control config space ready for update */ + val = mvpp2_cm3_read(port->priv, MSS_FC_COM_REG); + val |= FLOW_CONTROL_UPDATE_COMMAND_BIT; + val |= cm3_state; + mvpp2_cm3_write(port->priv, MSS_FC_COM_REG, val); + + spin_unlock_irqrestore(&port->priv->mss_spinlock, flags); +} + +/* Routine disable flow control for RXQs condition */ +static void mvpp2_rxq_disable_fc(struct mvpp2_port *port) +{ + int val, cm3_state, q; + unsigned long flags; + int fq = port->first_rxq; + + spin_lock_irqsave(&port->priv->mss_spinlock, flags); + + /* Remove Flow control enable bit to prevent race between FW and Kernel + * If Flow control was enabled, it would be re-enabled. + */ + val = mvpp2_cm3_read(port->priv, MSS_FC_COM_REG); + cm3_state = (val & FLOW_CONTROL_ENABLE_BIT); + val &= ~FLOW_CONTROL_ENABLE_BIT; + mvpp2_cm3_write(port->priv, MSS_FC_COM_REG, val); + + /* Disable Flow control for all RXQs */ + for (q = 0; q < port->nrxqs; q++) { + /* Set threshold 0 to disable Flow control */ + val = 0; + val |= (0 << MSS_RXQ_TRESH_STOP_OFFS); + mvpp2_cm3_write(port->priv, MSS_RXQ_TRESH_REG(q, fq), val); + + val = mvpp2_cm3_read(port->priv, MSS_RXQ_ASS_REG(q, fq)); + + val &= ~(MSS_RXQ_ASS_PORTID_MASK << MSS_RXQ_ASS_Q_BASE(q, fq)); + + val &= ~(MSS_RXQ_ASS_HOSTID_MASK << (MSS_RXQ_ASS_Q_BASE(q, fq) + + MSS_RXQ_ASS_HOSTID_OFFS)); + + mvpp2_cm3_write(port->priv, MSS_RXQ_ASS_REG(q, fq), val); + } + + /* Notify Firmware that Flow control config space ready for update */ + val = mvpp2_cm3_read(port->priv, MSS_FC_COM_REG); + val |= FLOW_CONTROL_UPDATE_COMMAND_BIT; + val |= cm3_state; + mvpp2_cm3_write(port->priv, MSS_FC_COM_REG, val); + + spin_unlock_irqrestore(&port->priv->mss_spinlock, flags); +} + +/* Routine disable/enable flow control for BM pool condition */ +static void mvpp2_bm_pool_update_fc(struct mvpp2_port *port, + struct mvpp2_bm_pool *pool, + bool en) +{ + int val, cm3_state; + unsigned long flags; + + spin_lock_irqsave(&port->priv->mss_spinlock, flags); + + /* Remove Flow control enable bit to prevent race between FW and Kernel + * If Flow control were enabled, it would be re-enabled. + */ + val = mvpp2_cm3_read(port->priv, MSS_FC_COM_REG); + cm3_state = (val & FLOW_CONTROL_ENABLE_BIT); + val &= ~FLOW_CONTROL_ENABLE_BIT; + mvpp2_cm3_write(port->priv, MSS_FC_COM_REG, val); + + /* Check if BM pool should be enabled/disable */ + if (en) { + /* Set BM pool start and stop thresholds per port */ + val = mvpp2_cm3_read(port->priv, MSS_BUF_POOL_REG(pool->id)); + val |= MSS_BUF_POOL_PORT_OFFS(port->id); + val &= ~MSS_BUF_POOL_START_MASK; + val |= (MSS_THRESHOLD_START << MSS_BUF_POOL_START_OFFS); + val &= ~MSS_BUF_POOL_STOP_MASK; + val |= MSS_THRESHOLD_STOP; + mvpp2_cm3_write(port->priv, MSS_BUF_POOL_REG(pool->id), val); + } else { + /* Remove BM pool from the port */ + val = mvpp2_cm3_read(port->priv, MSS_BUF_POOL_REG(pool->id)); + val &= ~MSS_BUF_POOL_PORT_OFFS(port->id); + + /* Zero BM pool start and stop thresholds to disable pool + * flow control if pool empty (not used by any port) + */ + if (!pool->buf_num) { + val &= ~MSS_BUF_POOL_START_MASK; + val &= ~MSS_BUF_POOL_STOP_MASK; + } + + mvpp2_cm3_write(port->priv, MSS_BUF_POOL_REG(pool->id), val); + } + + /* Notify Firmware that Flow control config space ready for update */ + val = mvpp2_cm3_read(port->priv, MSS_FC_COM_REG); + val |= FLOW_CONTROL_UPDATE_COMMAND_BIT; + val |= cm3_state; + mvpp2_cm3_write(port->priv, MSS_FC_COM_REG, val); + + spin_unlock_irqrestore(&port->priv->mss_spinlock, flags); +} + +/* disable/enable flow control for BM pool on all ports */ +static void mvpp2_bm_pool_update_priv_fc(struct mvpp2 *priv, bool en) +{ + struct mvpp2_port *port; + int i; + + for (i = 0; i < priv->port_count; i++) { + port = priv->port_list[i]; + if (port->priv->percpu_pools) { + for (i = 0; i < port->nrxqs; i++) + mvpp2_bm_pool_update_fc(port, &port->priv->bm_pools[i], + port->tx_fc & en); + } else { + mvpp2_bm_pool_update_fc(port, port->pool_long, port->tx_fc & en); + mvpp2_bm_pool_update_fc(port, port->pool_short, port->tx_fc & en); + } + } +} + +static int mvpp2_enable_global_fc(struct mvpp2 *priv) +{ + int val, timeout = 0; + + /* Enable global flow control. In this stage global + * flow control enabled, but still disabled per port. + */ + val = mvpp2_cm3_read(priv, MSS_FC_COM_REG); + val |= FLOW_CONTROL_ENABLE_BIT; + mvpp2_cm3_write(priv, MSS_FC_COM_REG, val); + + /* Check if Firmware running and disable FC if not*/ + val |= FLOW_CONTROL_UPDATE_COMMAND_BIT; + mvpp2_cm3_write(priv, MSS_FC_COM_REG, val); + + while (timeout < MSS_FC_MAX_TIMEOUT) { + val = mvpp2_cm3_read(priv, MSS_FC_COM_REG); + + if (!(val & FLOW_CONTROL_UPDATE_COMMAND_BIT)) + return 0; + usleep_range(10, 20); + timeout++; + } + + priv->global_tx_fc = false; + return -EOPNOTSUPP; +} + +/* Release buffer to BM */ +static inline void mvpp2_bm_pool_put(struct mvpp2_port *port, int pool, + dma_addr_t buf_dma_addr, + phys_addr_t buf_phys_addr) +{ + unsigned int thread = mvpp2_cpu_to_thread(port->priv, get_cpu()); + unsigned long flags = 0; + + if (test_bit(thread, &port->priv->lock_map)) + spin_lock_irqsave(&port->bm_lock[thread], flags); + + if (port->priv->hw_version >= MVPP22) { + u32 val = 0; + + if (sizeof(dma_addr_t) == 8) + val |= upper_32_bits(buf_dma_addr) & + MVPP22_BM_ADDR_HIGH_PHYS_RLS_MASK; + + if (sizeof(phys_addr_t) == 8) + val |= (upper_32_bits(buf_phys_addr) + << MVPP22_BM_ADDR_HIGH_VIRT_RLS_SHIFT) & + MVPP22_BM_ADDR_HIGH_VIRT_RLS_MASK; + + mvpp2_thread_write_relaxed(port->priv, thread, + MVPP22_BM_ADDR_HIGH_RLS_REG, val); + } + + /* MVPP2_BM_VIRT_RLS_REG is not interpreted by HW, and simply + * returned in the "cookie" field of the RX + * descriptor. Instead of storing the virtual address, we + * store the physical address + */ + mvpp2_thread_write_relaxed(port->priv, thread, + MVPP2_BM_VIRT_RLS_REG, buf_phys_addr); + mvpp2_thread_write_relaxed(port->priv, thread, + MVPP2_BM_PHY_RLS_REG(pool), buf_dma_addr); + + if (test_bit(thread, &port->priv->lock_map)) + spin_unlock_irqrestore(&port->bm_lock[thread], flags); + + put_cpu(); +} + +/* Allocate buffers for the pool */ +static int mvpp2_bm_bufs_add(struct mvpp2_port *port, + struct mvpp2_bm_pool *bm_pool, int buf_num) +{ + int i, buf_size, total_size; + dma_addr_t dma_addr; + phys_addr_t phys_addr; + struct page_pool *pp = NULL; + void *buf; + + if (port->priv->percpu_pools && + bm_pool->pkt_size > MVPP2_BM_LONG_PKT_SIZE) { + netdev_err(port->dev, + "attempted to use jumbo frames with per-cpu pools"); + return 0; + } + + buf_size = MVPP2_RX_BUF_SIZE(bm_pool->pkt_size); + total_size = MVPP2_RX_TOTAL_SIZE(buf_size); + + if (buf_num < 0 || + (buf_num + bm_pool->buf_num > bm_pool->size)) { + netdev_err(port->dev, + "cannot allocate %d buffers for pool %d\n", + buf_num, bm_pool->id); + return 0; + } + + if (port->priv->percpu_pools) + pp = port->priv->page_pool[bm_pool->id]; + for (i = 0; i < buf_num; i++) { + buf = mvpp2_buf_alloc(port, bm_pool, pp, &dma_addr, + &phys_addr, GFP_KERNEL); + if (!buf) + break; + + mvpp2_bm_pool_put(port, bm_pool->id, dma_addr, + phys_addr); + } + + /* Update BM driver with number of buffers added to pool */ + bm_pool->buf_num += i; + + netdev_dbg(port->dev, + "pool %d: pkt_size=%4d, buf_size=%4d, total_size=%4d\n", + bm_pool->id, bm_pool->pkt_size, buf_size, total_size); + + netdev_dbg(port->dev, + "pool %d: %d of %d buffers added\n", + bm_pool->id, i, buf_num); + return i; +} + +/* Notify the driver that BM pool is being used as specific type and return the + * pool pointer on success + */ +static struct mvpp2_bm_pool * +mvpp2_bm_pool_use(struct mvpp2_port *port, unsigned pool, int pkt_size) +{ + struct mvpp2_bm_pool *new_pool = &port->priv->bm_pools[pool]; + int num; + + if ((port->priv->percpu_pools && pool > mvpp2_get_nrxqs(port->priv) * 2) || + (!port->priv->percpu_pools && pool >= MVPP2_BM_POOLS_NUM)) { + netdev_err(port->dev, "Invalid pool %d\n", pool); + return NULL; + } + + /* Allocate buffers in case BM pool is used as long pool, but packet + * size doesn't match MTU or BM pool hasn't being used yet + */ + if (new_pool->pkt_size == 0) { + int pkts_num; + + /* Set default buffer number or free all the buffers in case + * the pool is not empty + */ + pkts_num = new_pool->buf_num; + if (pkts_num == 0) { + if (port->priv->percpu_pools) { + if (pool < port->nrxqs) + pkts_num = mvpp2_pools[MVPP2_BM_SHORT].buf_num; + else + pkts_num = mvpp2_pools[MVPP2_BM_LONG].buf_num; + } else { + pkts_num = mvpp2_pools[pool].buf_num; + } + } else { + mvpp2_bm_bufs_free(port->dev->dev.parent, + port->priv, new_pool, pkts_num); + } + + new_pool->pkt_size = pkt_size; + new_pool->frag_size = + SKB_DATA_ALIGN(MVPP2_RX_BUF_SIZE(pkt_size)) + + MVPP2_SKB_SHINFO_SIZE; + + /* Allocate buffers for this pool */ + num = mvpp2_bm_bufs_add(port, new_pool, pkts_num); + if (num != pkts_num) { + WARN(1, "pool %d: %d of %d allocated\n", + new_pool->id, num, pkts_num); + return NULL; + } + } + + mvpp2_bm_pool_bufsize_set(port->priv, new_pool, + MVPP2_RX_BUF_SIZE(new_pool->pkt_size)); + + return new_pool; +} + +static struct mvpp2_bm_pool * +mvpp2_bm_pool_use_percpu(struct mvpp2_port *port, int type, + unsigned int pool, int pkt_size) +{ + struct mvpp2_bm_pool *new_pool = &port->priv->bm_pools[pool]; + int num; + + if (pool > port->nrxqs * 2) { + netdev_err(port->dev, "Invalid pool %d\n", pool); + return NULL; + } + + /* Allocate buffers in case BM pool is used as long pool, but packet + * size doesn't match MTU or BM pool hasn't being used yet + */ + if (new_pool->pkt_size == 0) { + int pkts_num; + + /* Set default buffer number or free all the buffers in case + * the pool is not empty + */ + pkts_num = new_pool->buf_num; + if (pkts_num == 0) + pkts_num = mvpp2_pools[type].buf_num; + else + mvpp2_bm_bufs_free(port->dev->dev.parent, + port->priv, new_pool, pkts_num); + + new_pool->pkt_size = pkt_size; + new_pool->frag_size = + SKB_DATA_ALIGN(MVPP2_RX_BUF_SIZE(pkt_size)) + + MVPP2_SKB_SHINFO_SIZE; + + /* Allocate buffers for this pool */ + num = mvpp2_bm_bufs_add(port, new_pool, pkts_num); + if (num != pkts_num) { + WARN(1, "pool %d: %d of %d allocated\n", + new_pool->id, num, pkts_num); + return NULL; + } + } + + mvpp2_bm_pool_bufsize_set(port->priv, new_pool, + MVPP2_RX_BUF_SIZE(new_pool->pkt_size)); + + return new_pool; +} + +/* Initialize pools for swf, shared buffers variant */ +static int mvpp2_swf_bm_pool_init_shared(struct mvpp2_port *port) +{ + enum mvpp2_bm_pool_log_num long_log_pool, short_log_pool; + int rxq; + + /* If port pkt_size is higher than 1518B: + * HW Long pool - SW Jumbo pool, HW Short pool - SW Long pool + * else: HW Long pool - SW Long pool, HW Short pool - SW Short pool + */ + if (port->pkt_size > MVPP2_BM_LONG_PKT_SIZE) { + long_log_pool = MVPP2_BM_JUMBO; + short_log_pool = MVPP2_BM_LONG; + } else { + long_log_pool = MVPP2_BM_LONG; + short_log_pool = MVPP2_BM_SHORT; + } + + if (!port->pool_long) { + port->pool_long = + mvpp2_bm_pool_use(port, long_log_pool, + mvpp2_pools[long_log_pool].pkt_size); + if (!port->pool_long) + return -ENOMEM; + + port->pool_long->port_map |= BIT(port->id); + + for (rxq = 0; rxq < port->nrxqs; rxq++) + mvpp2_rxq_long_pool_set(port, rxq, port->pool_long->id); + } + + if (!port->pool_short) { + port->pool_short = + mvpp2_bm_pool_use(port, short_log_pool, + mvpp2_pools[short_log_pool].pkt_size); + if (!port->pool_short) + return -ENOMEM; + + port->pool_short->port_map |= BIT(port->id); + + for (rxq = 0; rxq < port->nrxqs; rxq++) + mvpp2_rxq_short_pool_set(port, rxq, + port->pool_short->id); + } + + return 0; +} + +/* Initialize pools for swf, percpu buffers variant */ +static int mvpp2_swf_bm_pool_init_percpu(struct mvpp2_port *port) +{ + struct mvpp2_bm_pool *bm_pool; + int i; + + for (i = 0; i < port->nrxqs; i++) { + bm_pool = mvpp2_bm_pool_use_percpu(port, MVPP2_BM_SHORT, i, + mvpp2_pools[MVPP2_BM_SHORT].pkt_size); + if (!bm_pool) + return -ENOMEM; + + bm_pool->port_map |= BIT(port->id); + mvpp2_rxq_short_pool_set(port, i, bm_pool->id); + } + + for (i = 0; i < port->nrxqs; i++) { + bm_pool = mvpp2_bm_pool_use_percpu(port, MVPP2_BM_LONG, i + port->nrxqs, + mvpp2_pools[MVPP2_BM_LONG].pkt_size); + if (!bm_pool) + return -ENOMEM; + + bm_pool->port_map |= BIT(port->id); + mvpp2_rxq_long_pool_set(port, i, bm_pool->id); + } + + port->pool_long = NULL; + port->pool_short = NULL; + + return 0; +} + +static int mvpp2_swf_bm_pool_init(struct mvpp2_port *port) +{ + if (port->priv->percpu_pools) + return mvpp2_swf_bm_pool_init_percpu(port); + else + return mvpp2_swf_bm_pool_init_shared(port); +} + +static void mvpp2_set_hw_csum(struct mvpp2_port *port, + enum mvpp2_bm_pool_log_num new_long_pool) +{ + const netdev_features_t csums = NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM; + + /* Update L4 checksum when jumbo enable/disable on port. + * Only port 0 supports hardware checksum offload due to + * the Tx FIFO size limitation. + * Also, don't set NETIF_F_HW_CSUM because L3_offset in TX descriptor + * has 7 bits, so the maximum L3 offset is 128. + */ + if (new_long_pool == MVPP2_BM_JUMBO && port->id != 0) { + port->dev->features &= ~csums; + port->dev->hw_features &= ~csums; + } else { + port->dev->features |= csums; + port->dev->hw_features |= csums; + } +} + +static int mvpp2_bm_update_mtu(struct net_device *dev, int mtu) +{ + struct mvpp2_port *port = netdev_priv(dev); + enum mvpp2_bm_pool_log_num new_long_pool; + int pkt_size = MVPP2_RX_PKT_SIZE(mtu); + + if (port->priv->percpu_pools) + goto out_set; + + /* If port MTU is higher than 1518B: + * HW Long pool - SW Jumbo pool, HW Short pool - SW Long pool + * else: HW Long pool - SW Long pool, HW Short pool - SW Short pool + */ + if (pkt_size > MVPP2_BM_LONG_PKT_SIZE) + new_long_pool = MVPP2_BM_JUMBO; + else + new_long_pool = MVPP2_BM_LONG; + + if (new_long_pool != port->pool_long->id) { + if (port->tx_fc) { + if (pkt_size > MVPP2_BM_LONG_PKT_SIZE) + mvpp2_bm_pool_update_fc(port, + port->pool_short, + false); + else + mvpp2_bm_pool_update_fc(port, port->pool_long, + false); + } + + /* Remove port from old short & long pool */ + port->pool_long = mvpp2_bm_pool_use(port, port->pool_long->id, + port->pool_long->pkt_size); + port->pool_long->port_map &= ~BIT(port->id); + port->pool_long = NULL; + + port->pool_short = mvpp2_bm_pool_use(port, port->pool_short->id, + port->pool_short->pkt_size); + port->pool_short->port_map &= ~BIT(port->id); + port->pool_short = NULL; + + port->pkt_size = pkt_size; + + /* Add port to new short & long pool */ + mvpp2_swf_bm_pool_init(port); + + mvpp2_set_hw_csum(port, new_long_pool); + + if (port->tx_fc) { + if (pkt_size > MVPP2_BM_LONG_PKT_SIZE) + mvpp2_bm_pool_update_fc(port, port->pool_long, + true); + else + mvpp2_bm_pool_update_fc(port, port->pool_short, + true); + } + + /* Update L4 checksum when jumbo enable/disable on port */ + if (new_long_pool == MVPP2_BM_JUMBO && port->id != 0) { + dev->features &= ~(NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM); + dev->hw_features &= ~(NETIF_F_IP_CSUM | + NETIF_F_IPV6_CSUM); + } else { + dev->features |= NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM; + dev->hw_features |= NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM; + } + } + +out_set: + dev->mtu = mtu; + dev->wanted_features = dev->features; + + netdev_update_features(dev); + return 0; +} + +static inline void mvpp2_interrupts_enable(struct mvpp2_port *port) +{ + int i, sw_thread_mask = 0; + + for (i = 0; i < port->nqvecs; i++) + sw_thread_mask |= port->qvecs[i].sw_thread_mask; + + mvpp2_write(port->priv, MVPP2_ISR_ENABLE_REG(port->id), + MVPP2_ISR_ENABLE_INTERRUPT(sw_thread_mask)); +} + +static inline void mvpp2_interrupts_disable(struct mvpp2_port *port) +{ + int i, sw_thread_mask = 0; + + for (i = 0; i < port->nqvecs; i++) + sw_thread_mask |= port->qvecs[i].sw_thread_mask; + + mvpp2_write(port->priv, MVPP2_ISR_ENABLE_REG(port->id), + MVPP2_ISR_DISABLE_INTERRUPT(sw_thread_mask)); +} + +static inline void mvpp2_qvec_interrupt_enable(struct mvpp2_queue_vector *qvec) +{ + struct mvpp2_port *port = qvec->port; + + mvpp2_write(port->priv, MVPP2_ISR_ENABLE_REG(port->id), + MVPP2_ISR_ENABLE_INTERRUPT(qvec->sw_thread_mask)); +} + +static inline void mvpp2_qvec_interrupt_disable(struct mvpp2_queue_vector *qvec) +{ + struct mvpp2_port *port = qvec->port; + + mvpp2_write(port->priv, MVPP2_ISR_ENABLE_REG(port->id), + MVPP2_ISR_DISABLE_INTERRUPT(qvec->sw_thread_mask)); +} + +/* Mask the current thread's Rx/Tx interrupts + * Called by on_each_cpu(), guaranteed to run with migration disabled, + * using smp_processor_id() is OK. + */ +static void mvpp2_interrupts_mask(void *arg) +{ + struct mvpp2_port *port = arg; + int cpu = smp_processor_id(); + u32 thread; + + /* If the thread isn't used, don't do anything */ + if (cpu > port->priv->nthreads) + return; + + thread = mvpp2_cpu_to_thread(port->priv, cpu); + + mvpp2_thread_write(port->priv, thread, + MVPP2_ISR_RX_TX_MASK_REG(port->id), 0); + mvpp2_thread_write(port->priv, thread, + MVPP2_ISR_RX_ERR_CAUSE_REG(port->id), 0); +} + +/* Unmask the current thread's Rx/Tx interrupts. + * Called by on_each_cpu(), guaranteed to run with migration disabled, + * using smp_processor_id() is OK. + */ +static void mvpp2_interrupts_unmask(void *arg) +{ + struct mvpp2_port *port = arg; + int cpu = smp_processor_id(); + u32 val, thread; + + /* If the thread isn't used, don't do anything */ + if (cpu >= port->priv->nthreads) + return; + + thread = mvpp2_cpu_to_thread(port->priv, cpu); + + val = MVPP2_CAUSE_MISC_SUM_MASK | + MVPP2_CAUSE_RXQ_OCCUP_DESC_ALL_MASK(port->priv->hw_version); + if (port->has_tx_irqs) + val |= MVPP2_CAUSE_TXQ_OCCUP_DESC_ALL_MASK; + + mvpp2_thread_write(port->priv, thread, + MVPP2_ISR_RX_TX_MASK_REG(port->id), val); + mvpp2_thread_write(port->priv, thread, + MVPP2_ISR_RX_ERR_CAUSE_REG(port->id), + MVPP2_ISR_RX_ERR_CAUSE_NONOCC_MASK); +} + +static void +mvpp2_shared_interrupt_mask_unmask(struct mvpp2_port *port, bool mask) +{ + u32 val; + int i; + + if (port->priv->hw_version == MVPP21) + return; + + if (mask) + val = 0; + else + val = MVPP2_CAUSE_RXQ_OCCUP_DESC_ALL_MASK(MVPP22); + + for (i = 0; i < port->nqvecs; i++) { + struct mvpp2_queue_vector *v = port->qvecs + i; + + if (v->type != MVPP2_QUEUE_VECTOR_SHARED) + continue; + + mvpp2_thread_write(port->priv, v->sw_thread_id, + MVPP2_ISR_RX_TX_MASK_REG(port->id), val); + mvpp2_thread_write(port->priv, v->sw_thread_id, + MVPP2_ISR_RX_ERR_CAUSE_REG(port->id), + MVPP2_ISR_RX_ERR_CAUSE_NONOCC_MASK); + } +} + +/* Only GOP port 0 has an XLG MAC */ +static bool mvpp2_port_supports_xlg(struct mvpp2_port *port) +{ + return port->gop_id == 0; +} + +static bool mvpp2_port_supports_rgmii(struct mvpp2_port *port) +{ + return !(port->priv->hw_version >= MVPP22 && port->gop_id == 0); +} + +/* Port configuration routines */ +static bool mvpp2_is_xlg(phy_interface_t interface) +{ + return interface == PHY_INTERFACE_MODE_10GBASER || + interface == PHY_INTERFACE_MODE_5GBASER || + interface == PHY_INTERFACE_MODE_XAUI; +} + +static void mvpp2_modify(void __iomem *ptr, u32 mask, u32 set) +{ + u32 old, val; + + old = val = readl(ptr); + val &= ~mask; + val |= set; + if (old != val) + writel(val, ptr); +} + +static void mvpp22_gop_init_rgmii(struct mvpp2_port *port) +{ + struct mvpp2 *priv = port->priv; + u32 val; + + regmap_read(priv->sysctrl_base, GENCONF_PORT_CTRL0, &val); + val |= GENCONF_PORT_CTRL0_BUS_WIDTH_SELECT; + regmap_write(priv->sysctrl_base, GENCONF_PORT_CTRL0, val); + + regmap_read(priv->sysctrl_base, GENCONF_CTRL0, &val); + if (port->gop_id == 2) + val |= GENCONF_CTRL0_PORT2_RGMII; + else if (port->gop_id == 3) + val |= GENCONF_CTRL0_PORT3_RGMII_MII; + regmap_write(priv->sysctrl_base, GENCONF_CTRL0, val); +} + +static void mvpp22_gop_init_sgmii(struct mvpp2_port *port) +{ + struct mvpp2 *priv = port->priv; + u32 val; + + regmap_read(priv->sysctrl_base, GENCONF_PORT_CTRL0, &val); + val |= GENCONF_PORT_CTRL0_BUS_WIDTH_SELECT | + GENCONF_PORT_CTRL0_RX_DATA_SAMPLE; + regmap_write(priv->sysctrl_base, GENCONF_PORT_CTRL0, val); + + if (port->gop_id > 1) { + regmap_read(priv->sysctrl_base, GENCONF_CTRL0, &val); + if (port->gop_id == 2) + val &= ~GENCONF_CTRL0_PORT2_RGMII; + else if (port->gop_id == 3) + val &= ~GENCONF_CTRL0_PORT3_RGMII_MII; + regmap_write(priv->sysctrl_base, GENCONF_CTRL0, val); + } +} + +static void mvpp22_gop_init_10gkr(struct mvpp2_port *port) +{ + struct mvpp2 *priv = port->priv; + void __iomem *mpcs = priv->iface_base + MVPP22_MPCS_BASE(port->gop_id); + void __iomem *xpcs = priv->iface_base + MVPP22_XPCS_BASE(port->gop_id); + u32 val; + + val = readl(xpcs + MVPP22_XPCS_CFG0); + val &= ~(MVPP22_XPCS_CFG0_PCS_MODE(0x3) | + MVPP22_XPCS_CFG0_ACTIVE_LANE(0x3)); + val |= MVPP22_XPCS_CFG0_ACTIVE_LANE(2); + writel(val, xpcs + MVPP22_XPCS_CFG0); + + val = readl(mpcs + MVPP22_MPCS_CTRL); + val &= ~MVPP22_MPCS_CTRL_FWD_ERR_CONN; + writel(val, mpcs + MVPP22_MPCS_CTRL); + + val = readl(mpcs + MVPP22_MPCS_CLK_RESET); + val &= ~MVPP22_MPCS_CLK_RESET_DIV_RATIO(0x7); + val |= MVPP22_MPCS_CLK_RESET_DIV_RATIO(1); + writel(val, mpcs + MVPP22_MPCS_CLK_RESET); +} + +static void mvpp22_gop_fca_enable_periodic(struct mvpp2_port *port, bool en) +{ + struct mvpp2 *priv = port->priv; + void __iomem *fca = priv->iface_base + MVPP22_FCA_BASE(port->gop_id); + u32 val; + + val = readl(fca + MVPP22_FCA_CONTROL_REG); + val &= ~MVPP22_FCA_ENABLE_PERIODIC; + if (en) + val |= MVPP22_FCA_ENABLE_PERIODIC; + writel(val, fca + MVPP22_FCA_CONTROL_REG); +} + +static void mvpp22_gop_fca_set_timer(struct mvpp2_port *port, u32 timer) +{ + struct mvpp2 *priv = port->priv; + void __iomem *fca = priv->iface_base + MVPP22_FCA_BASE(port->gop_id); + u32 lsb, msb; + + lsb = timer & MVPP22_FCA_REG_MASK; + msb = timer >> MVPP22_FCA_REG_SIZE; + + writel(lsb, fca + MVPP22_PERIODIC_COUNTER_LSB_REG); + writel(msb, fca + MVPP22_PERIODIC_COUNTER_MSB_REG); +} + +/* Set Flow Control timer x100 faster than pause quanta to ensure that link + * partner won't send traffic if port is in XOFF mode. + */ +static void mvpp22_gop_fca_set_periodic_timer(struct mvpp2_port *port) +{ + u32 timer; + + timer = (port->priv->tclk / (USEC_PER_SEC * FC_CLK_DIVIDER)) + * FC_QUANTA; + + mvpp22_gop_fca_enable_periodic(port, false); + + mvpp22_gop_fca_set_timer(port, timer); + + mvpp22_gop_fca_enable_periodic(port, true); +} + +static int mvpp22_gop_init(struct mvpp2_port *port, phy_interface_t interface) +{ + struct mvpp2 *priv = port->priv; + u32 val; + + if (!priv->sysctrl_base) + return 0; + + switch (interface) { + case PHY_INTERFACE_MODE_RGMII: + case PHY_INTERFACE_MODE_RGMII_ID: + case PHY_INTERFACE_MODE_RGMII_RXID: + case PHY_INTERFACE_MODE_RGMII_TXID: + if (!mvpp2_port_supports_rgmii(port)) + goto invalid_conf; + mvpp22_gop_init_rgmii(port); + break; + case PHY_INTERFACE_MODE_SGMII: + case PHY_INTERFACE_MODE_1000BASEX: + case PHY_INTERFACE_MODE_2500BASEX: + mvpp22_gop_init_sgmii(port); + break; + case PHY_INTERFACE_MODE_5GBASER: + case PHY_INTERFACE_MODE_10GBASER: + if (!mvpp2_port_supports_xlg(port)) + goto invalid_conf; + mvpp22_gop_init_10gkr(port); + break; + default: + goto unsupported_conf; + } + + regmap_read(priv->sysctrl_base, GENCONF_PORT_CTRL1, &val); + val |= GENCONF_PORT_CTRL1_RESET(port->gop_id) | + GENCONF_PORT_CTRL1_EN(port->gop_id); + regmap_write(priv->sysctrl_base, GENCONF_PORT_CTRL1, val); + + regmap_read(priv->sysctrl_base, GENCONF_PORT_CTRL0, &val); + val |= GENCONF_PORT_CTRL0_CLK_DIV_PHASE_CLR; + regmap_write(priv->sysctrl_base, GENCONF_PORT_CTRL0, val); + + regmap_read(priv->sysctrl_base, GENCONF_SOFT_RESET1, &val); + val |= GENCONF_SOFT_RESET1_GOP; + regmap_write(priv->sysctrl_base, GENCONF_SOFT_RESET1, val); + + mvpp22_gop_fca_set_periodic_timer(port); + +unsupported_conf: + return 0; + +invalid_conf: + netdev_err(port->dev, "Invalid port configuration\n"); + return -EINVAL; +} + +static void mvpp22_gop_unmask_irq(struct mvpp2_port *port) +{ + u32 val; + + if (phy_interface_mode_is_rgmii(port->phy_interface) || + phy_interface_mode_is_8023z(port->phy_interface) || + port->phy_interface == PHY_INTERFACE_MODE_SGMII) { + /* Enable the GMAC link status irq for this port */ + val = readl(port->base + MVPP22_GMAC_INT_SUM_MASK); + val |= MVPP22_GMAC_INT_SUM_MASK_LINK_STAT; + writel(val, port->base + MVPP22_GMAC_INT_SUM_MASK); + } + + if (mvpp2_port_supports_xlg(port)) { + /* Enable the XLG/GIG irqs for this port */ + val = readl(port->base + MVPP22_XLG_EXT_INT_MASK); + if (mvpp2_is_xlg(port->phy_interface)) + val |= MVPP22_XLG_EXT_INT_MASK_XLG; + else + val |= MVPP22_XLG_EXT_INT_MASK_GIG; + writel(val, port->base + MVPP22_XLG_EXT_INT_MASK); + } +} + +static void mvpp22_gop_mask_irq(struct mvpp2_port *port) +{ + u32 val; + + if (mvpp2_port_supports_xlg(port)) { + val = readl(port->base + MVPP22_XLG_EXT_INT_MASK); + val &= ~(MVPP22_XLG_EXT_INT_MASK_XLG | + MVPP22_XLG_EXT_INT_MASK_GIG); + writel(val, port->base + MVPP22_XLG_EXT_INT_MASK); + } + + if (phy_interface_mode_is_rgmii(port->phy_interface) || + phy_interface_mode_is_8023z(port->phy_interface) || + port->phy_interface == PHY_INTERFACE_MODE_SGMII) { + val = readl(port->base + MVPP22_GMAC_INT_SUM_MASK); + val &= ~MVPP22_GMAC_INT_SUM_MASK_LINK_STAT; + writel(val, port->base + MVPP22_GMAC_INT_SUM_MASK); + } +} + +static void mvpp22_gop_setup_irq(struct mvpp2_port *port) +{ + u32 val; + + mvpp2_modify(port->base + MVPP22_GMAC_INT_SUM_MASK, + MVPP22_GMAC_INT_SUM_MASK_PTP, + MVPP22_GMAC_INT_SUM_MASK_PTP); + + if (port->phylink || + phy_interface_mode_is_rgmii(port->phy_interface) || + phy_interface_mode_is_8023z(port->phy_interface) || + port->phy_interface == PHY_INTERFACE_MODE_SGMII) { + val = readl(port->base + MVPP22_GMAC_INT_MASK); + val |= MVPP22_GMAC_INT_MASK_LINK_STAT; + writel(val, port->base + MVPP22_GMAC_INT_MASK); + } + + if (mvpp2_port_supports_xlg(port)) { + val = readl(port->base + MVPP22_XLG_INT_MASK); + val |= MVPP22_XLG_INT_MASK_LINK; + writel(val, port->base + MVPP22_XLG_INT_MASK); + + mvpp2_modify(port->base + MVPP22_XLG_EXT_INT_MASK, + MVPP22_XLG_EXT_INT_MASK_PTP, + MVPP22_XLG_EXT_INT_MASK_PTP); + } + + mvpp22_gop_unmask_irq(port); +} + +/* Sets the PHY mode of the COMPHY (which configures the serdes lanes). + * + * The PHY mode used by the PPv2 driver comes from the network subsystem, while + * the one given to the COMPHY comes from the generic PHY subsystem. Hence they + * differ. + * + * The COMPHY configures the serdes lanes regardless of the actual use of the + * lanes by the physical layer. This is why configurations like + * "PPv2 (2500BaseX) - COMPHY (2500SGMII)" are valid. + */ +static int mvpp22_comphy_init(struct mvpp2_port *port, + phy_interface_t interface) +{ + int ret; + + if (!port->comphy) + return 0; + + ret = phy_set_mode_ext(port->comphy, PHY_MODE_ETHERNET, interface); + if (ret) + return ret; + + return phy_power_on(port->comphy); +} + +static void mvpp2_port_enable(struct mvpp2_port *port) +{ + u32 val; + + if (mvpp2_port_supports_xlg(port) && + mvpp2_is_xlg(port->phy_interface)) { + val = readl(port->base + MVPP22_XLG_CTRL0_REG); + val |= MVPP22_XLG_CTRL0_PORT_EN; + val &= ~MVPP22_XLG_CTRL0_MIB_CNT_DIS; + writel(val, port->base + MVPP22_XLG_CTRL0_REG); + } else { + val = readl(port->base + MVPP2_GMAC_CTRL_0_REG); + val |= MVPP2_GMAC_PORT_EN_MASK; + val |= MVPP2_GMAC_MIB_CNTR_EN_MASK; + writel(val, port->base + MVPP2_GMAC_CTRL_0_REG); + } +} + +static void mvpp2_port_disable(struct mvpp2_port *port) +{ + u32 val; + + if (mvpp2_port_supports_xlg(port) && + mvpp2_is_xlg(port->phy_interface)) { + val = readl(port->base + MVPP22_XLG_CTRL0_REG); + val &= ~MVPP22_XLG_CTRL0_PORT_EN; + writel(val, port->base + MVPP22_XLG_CTRL0_REG); + } + + val = readl(port->base + MVPP2_GMAC_CTRL_0_REG); + val &= ~(MVPP2_GMAC_PORT_EN_MASK); + writel(val, port->base + MVPP2_GMAC_CTRL_0_REG); +} + +/* Set IEEE 802.3x Flow Control Xon Packet Transmission Mode */ +static void mvpp2_port_periodic_xon_disable(struct mvpp2_port *port) +{ + u32 val; + + val = readl(port->base + MVPP2_GMAC_CTRL_1_REG) & + ~MVPP2_GMAC_PERIODIC_XON_EN_MASK; + writel(val, port->base + MVPP2_GMAC_CTRL_1_REG); +} + +/* Configure loopback port */ +static void mvpp2_port_loopback_set(struct mvpp2_port *port, + const struct phylink_link_state *state) +{ + u32 val; + + val = readl(port->base + MVPP2_GMAC_CTRL_1_REG); + + if (state->speed == 1000) + val |= MVPP2_GMAC_GMII_LB_EN_MASK; + else + val &= ~MVPP2_GMAC_GMII_LB_EN_MASK; + + if (phy_interface_mode_is_8023z(state->interface) || + state->interface == PHY_INTERFACE_MODE_SGMII) + val |= MVPP2_GMAC_PCS_LB_EN_MASK; + else + val &= ~MVPP2_GMAC_PCS_LB_EN_MASK; + + writel(val, port->base + MVPP2_GMAC_CTRL_1_REG); +} + +enum { + ETHTOOL_XDP_REDIRECT, + ETHTOOL_XDP_PASS, + ETHTOOL_XDP_DROP, + ETHTOOL_XDP_TX, + ETHTOOL_XDP_TX_ERR, + ETHTOOL_XDP_XMIT, + ETHTOOL_XDP_XMIT_ERR, +}; + +struct mvpp2_ethtool_counter { + unsigned int offset; + const char string[ETH_GSTRING_LEN]; + bool reg_is_64b; +}; + +static u64 mvpp2_read_count(struct mvpp2_port *port, + const struct mvpp2_ethtool_counter *counter) +{ + u64 val; + + val = readl(port->stats_base + counter->offset); + if (counter->reg_is_64b) + val += (u64)readl(port->stats_base + counter->offset + 4) << 32; + + return val; +} + +/* Some counters are accessed indirectly by first writing an index to + * MVPP2_CTRS_IDX. The index can represent various resources depending on the + * register we access, it can be a hit counter for some classification tables, + * a counter specific to a rxq, a txq or a buffer pool. + */ +static u32 mvpp2_read_index(struct mvpp2 *priv, u32 index, u32 reg) +{ + mvpp2_write(priv, MVPP2_CTRS_IDX, index); + return mvpp2_read(priv, reg); +} + +/* Due to the fact that software statistics and hardware statistics are, by + * design, incremented at different moments in the chain of packet processing, + * it is very likely that incoming packets could have been dropped after being + * counted by hardware but before reaching software statistics (most probably + * multicast packets), and in the opposite way, during transmission, FCS bytes + * are added in between as well as TSO skb will be split and header bytes added. + * Hence, statistics gathered from userspace with ifconfig (software) and + * ethtool (hardware) cannot be compared. + */ +static const struct mvpp2_ethtool_counter mvpp2_ethtool_mib_regs[] = { + { MVPP2_MIB_GOOD_OCTETS_RCVD, "good_octets_received", true }, + { MVPP2_MIB_BAD_OCTETS_RCVD, "bad_octets_received" }, + { MVPP2_MIB_CRC_ERRORS_SENT, "crc_errors_sent" }, + { MVPP2_MIB_UNICAST_FRAMES_RCVD, "unicast_frames_received" }, + { MVPP2_MIB_BROADCAST_FRAMES_RCVD, "broadcast_frames_received" }, + { MVPP2_MIB_MULTICAST_FRAMES_RCVD, "multicast_frames_received" }, + { MVPP2_MIB_FRAMES_64_OCTETS, "frames_64_octets" }, + { MVPP2_MIB_FRAMES_65_TO_127_OCTETS, "frames_65_to_127_octet" }, + { MVPP2_MIB_FRAMES_128_TO_255_OCTETS, "frames_128_to_255_octet" }, + { MVPP2_MIB_FRAMES_256_TO_511_OCTETS, "frames_256_to_511_octet" }, + { MVPP2_MIB_FRAMES_512_TO_1023_OCTETS, "frames_512_to_1023_octet" }, + { MVPP2_MIB_FRAMES_1024_TO_MAX_OCTETS, "frames_1024_to_max_octet" }, + { MVPP2_MIB_GOOD_OCTETS_SENT, "good_octets_sent", true }, + { MVPP2_MIB_UNICAST_FRAMES_SENT, "unicast_frames_sent" }, + { MVPP2_MIB_MULTICAST_FRAMES_SENT, "multicast_frames_sent" }, + { MVPP2_MIB_BROADCAST_FRAMES_SENT, "broadcast_frames_sent" }, + { MVPP2_MIB_FC_SENT, "fc_sent" }, + { MVPP2_MIB_FC_RCVD, "fc_received" }, + { MVPP2_MIB_RX_FIFO_OVERRUN, "rx_fifo_overrun" }, + { MVPP2_MIB_UNDERSIZE_RCVD, "undersize_received" }, + { MVPP2_MIB_FRAGMENTS_RCVD, "fragments_received" }, + { MVPP2_MIB_OVERSIZE_RCVD, "oversize_received" }, + { MVPP2_MIB_JABBER_RCVD, "jabber_received" }, + { MVPP2_MIB_MAC_RCV_ERROR, "mac_receive_error" }, + { MVPP2_MIB_BAD_CRC_EVENT, "bad_crc_event" }, + { MVPP2_MIB_COLLISION, "collision" }, + { MVPP2_MIB_LATE_COLLISION, "late_collision" }, +}; + +static const struct mvpp2_ethtool_counter mvpp2_ethtool_port_regs[] = { + { MVPP2_OVERRUN_ETH_DROP, "rx_fifo_or_parser_overrun_drops" }, + { MVPP2_CLS_ETH_DROP, "rx_classifier_drops" }, +}; + +static const struct mvpp2_ethtool_counter mvpp2_ethtool_txq_regs[] = { + { MVPP2_TX_DESC_ENQ_CTR, "txq_%d_desc_enqueue" }, + { MVPP2_TX_DESC_ENQ_TO_DDR_CTR, "txq_%d_desc_enqueue_to_ddr" }, + { MVPP2_TX_BUFF_ENQ_TO_DDR_CTR, "txq_%d_buff_euqueue_to_ddr" }, + { MVPP2_TX_DESC_ENQ_HW_FWD_CTR, "txq_%d_desc_hardware_forwarded" }, + { MVPP2_TX_PKTS_DEQ_CTR, "txq_%d_packets_dequeued" }, + { MVPP2_TX_PKTS_FULL_QUEUE_DROP_CTR, "txq_%d_queue_full_drops" }, + { MVPP2_TX_PKTS_EARLY_DROP_CTR, "txq_%d_packets_early_drops" }, + { MVPP2_TX_PKTS_BM_DROP_CTR, "txq_%d_packets_bm_drops" }, + { MVPP2_TX_PKTS_BM_MC_DROP_CTR, "txq_%d_packets_rep_bm_drops" }, +}; + +static const struct mvpp2_ethtool_counter mvpp2_ethtool_rxq_regs[] = { + { MVPP2_RX_DESC_ENQ_CTR, "rxq_%d_desc_enqueue" }, + { MVPP2_RX_PKTS_FULL_QUEUE_DROP_CTR, "rxq_%d_queue_full_drops" }, + { MVPP2_RX_PKTS_EARLY_DROP_CTR, "rxq_%d_packets_early_drops" }, + { MVPP2_RX_PKTS_BM_DROP_CTR, "rxq_%d_packets_bm_drops" }, +}; + +static const struct mvpp2_ethtool_counter mvpp2_ethtool_xdp[] = { + { ETHTOOL_XDP_REDIRECT, "rx_xdp_redirect", }, + { ETHTOOL_XDP_PASS, "rx_xdp_pass", }, + { ETHTOOL_XDP_DROP, "rx_xdp_drop", }, + { ETHTOOL_XDP_TX, "rx_xdp_tx", }, + { ETHTOOL_XDP_TX_ERR, "rx_xdp_tx_errors", }, + { ETHTOOL_XDP_XMIT, "tx_xdp_xmit", }, + { ETHTOOL_XDP_XMIT_ERR, "tx_xdp_xmit_errors", }, +}; + +#define MVPP2_N_ETHTOOL_STATS(ntxqs, nrxqs) (ARRAY_SIZE(mvpp2_ethtool_mib_regs) + \ + ARRAY_SIZE(mvpp2_ethtool_port_regs) + \ + (ARRAY_SIZE(mvpp2_ethtool_txq_regs) * (ntxqs)) + \ + (ARRAY_SIZE(mvpp2_ethtool_rxq_regs) * (nrxqs)) + \ + ARRAY_SIZE(mvpp2_ethtool_xdp)) + +static void mvpp2_ethtool_get_strings(struct net_device *netdev, u32 sset, + u8 *data) +{ + struct mvpp2_port *port = netdev_priv(netdev); + int i, q; + + if (sset != ETH_SS_STATS) + return; + + for (i = 0; i < ARRAY_SIZE(mvpp2_ethtool_mib_regs); i++) { + strscpy(data, mvpp2_ethtool_mib_regs[i].string, + ETH_GSTRING_LEN); + data += ETH_GSTRING_LEN; + } + + for (i = 0; i < ARRAY_SIZE(mvpp2_ethtool_port_regs); i++) { + strscpy(data, mvpp2_ethtool_port_regs[i].string, + ETH_GSTRING_LEN); + data += ETH_GSTRING_LEN; + } + + for (q = 0; q < port->ntxqs; q++) { + for (i = 0; i < ARRAY_SIZE(mvpp2_ethtool_txq_regs); i++) { + snprintf(data, ETH_GSTRING_LEN, + mvpp2_ethtool_txq_regs[i].string, q); + data += ETH_GSTRING_LEN; + } + } + + for (q = 0; q < port->nrxqs; q++) { + for (i = 0; i < ARRAY_SIZE(mvpp2_ethtool_rxq_regs); i++) { + snprintf(data, ETH_GSTRING_LEN, + mvpp2_ethtool_rxq_regs[i].string, + q); + data += ETH_GSTRING_LEN; + } + } + + for (i = 0; i < ARRAY_SIZE(mvpp2_ethtool_xdp); i++) { + strscpy(data, mvpp2_ethtool_xdp[i].string, + ETH_GSTRING_LEN); + data += ETH_GSTRING_LEN; + } +} + +static void +mvpp2_get_xdp_stats(struct mvpp2_port *port, struct mvpp2_pcpu_stats *xdp_stats) +{ + unsigned int start; + unsigned int cpu; + + /* Gather XDP Statistics */ + for_each_possible_cpu(cpu) { + struct mvpp2_pcpu_stats *cpu_stats; + u64 xdp_redirect; + u64 xdp_pass; + u64 xdp_drop; + u64 xdp_xmit; + u64 xdp_xmit_err; + u64 xdp_tx; + u64 xdp_tx_err; + + cpu_stats = per_cpu_ptr(port->stats, cpu); + do { + start = u64_stats_fetch_begin_irq(&cpu_stats->syncp); + xdp_redirect = cpu_stats->xdp_redirect; + xdp_pass = cpu_stats->xdp_pass; + xdp_drop = cpu_stats->xdp_drop; + xdp_xmit = cpu_stats->xdp_xmit; + xdp_xmit_err = cpu_stats->xdp_xmit_err; + xdp_tx = cpu_stats->xdp_tx; + xdp_tx_err = cpu_stats->xdp_tx_err; + } while (u64_stats_fetch_retry_irq(&cpu_stats->syncp, start)); + + xdp_stats->xdp_redirect += xdp_redirect; + xdp_stats->xdp_pass += xdp_pass; + xdp_stats->xdp_drop += xdp_drop; + xdp_stats->xdp_xmit += xdp_xmit; + xdp_stats->xdp_xmit_err += xdp_xmit_err; + xdp_stats->xdp_tx += xdp_tx; + xdp_stats->xdp_tx_err += xdp_tx_err; + } +} + +static void mvpp2_read_stats(struct mvpp2_port *port) +{ + struct mvpp2_pcpu_stats xdp_stats = {}; + const struct mvpp2_ethtool_counter *s; + u64 *pstats; + int i, q; + + pstats = port->ethtool_stats; + + for (i = 0; i < ARRAY_SIZE(mvpp2_ethtool_mib_regs); i++) + *pstats++ += mvpp2_read_count(port, &mvpp2_ethtool_mib_regs[i]); + + for (i = 0; i < ARRAY_SIZE(mvpp2_ethtool_port_regs); i++) + *pstats++ += mvpp2_read(port->priv, + mvpp2_ethtool_port_regs[i].offset + + 4 * port->id); + + for (q = 0; q < port->ntxqs; q++) + for (i = 0; i < ARRAY_SIZE(mvpp2_ethtool_txq_regs); i++) + *pstats++ += mvpp2_read_index(port->priv, + MVPP22_CTRS_TX_CTR(port->id, q), + mvpp2_ethtool_txq_regs[i].offset); + + /* Rxqs are numbered from 0 from the user standpoint, but not from the + * driver's. We need to add the port->first_rxq offset. + */ + for (q = 0; q < port->nrxqs; q++) + for (i = 0; i < ARRAY_SIZE(mvpp2_ethtool_rxq_regs); i++) + *pstats++ += mvpp2_read_index(port->priv, + port->first_rxq + q, + mvpp2_ethtool_rxq_regs[i].offset); + + /* Gather XDP Statistics */ + mvpp2_get_xdp_stats(port, &xdp_stats); + + for (i = 0, s = mvpp2_ethtool_xdp; + s < mvpp2_ethtool_xdp + ARRAY_SIZE(mvpp2_ethtool_xdp); + s++, i++) { + switch (s->offset) { + case ETHTOOL_XDP_REDIRECT: + *pstats++ = xdp_stats.xdp_redirect; + break; + case ETHTOOL_XDP_PASS: + *pstats++ = xdp_stats.xdp_pass; + break; + case ETHTOOL_XDP_DROP: + *pstats++ = xdp_stats.xdp_drop; + break; + case ETHTOOL_XDP_TX: + *pstats++ = xdp_stats.xdp_tx; + break; + case ETHTOOL_XDP_TX_ERR: + *pstats++ = xdp_stats.xdp_tx_err; + break; + case ETHTOOL_XDP_XMIT: + *pstats++ = xdp_stats.xdp_xmit; + break; + case ETHTOOL_XDP_XMIT_ERR: + *pstats++ = xdp_stats.xdp_xmit_err; + break; + } + } +} + +static void mvpp2_gather_hw_statistics(struct work_struct *work) +{ + struct delayed_work *del_work = to_delayed_work(work); + struct mvpp2_port *port = container_of(del_work, struct mvpp2_port, + stats_work); + + mutex_lock(&port->gather_stats_lock); + + mvpp2_read_stats(port); + + /* No need to read again the counters right after this function if it + * was called asynchronously by the user (ie. use of ethtool). + */ + cancel_delayed_work(&port->stats_work); + queue_delayed_work(port->priv->stats_queue, &port->stats_work, + MVPP2_MIB_COUNTERS_STATS_DELAY); + + mutex_unlock(&port->gather_stats_lock); +} + +static void mvpp2_ethtool_get_stats(struct net_device *dev, + struct ethtool_stats *stats, u64 *data) +{ + struct mvpp2_port *port = netdev_priv(dev); + + /* Update statistics for the given port, then take the lock to avoid + * concurrent accesses on the ethtool_stats structure during its copy. + */ + mvpp2_gather_hw_statistics(&port->stats_work.work); + + mutex_lock(&port->gather_stats_lock); + memcpy(data, port->ethtool_stats, + sizeof(u64) * MVPP2_N_ETHTOOL_STATS(port->ntxqs, port->nrxqs)); + mutex_unlock(&port->gather_stats_lock); +} + +static int mvpp2_ethtool_get_sset_count(struct net_device *dev, int sset) +{ + struct mvpp2_port *port = netdev_priv(dev); + + if (sset == ETH_SS_STATS) + return MVPP2_N_ETHTOOL_STATS(port->ntxqs, port->nrxqs); + + return -EOPNOTSUPP; +} + +static void mvpp2_mac_reset_assert(struct mvpp2_port *port) +{ + u32 val; + + val = readl(port->base + MVPP2_GMAC_CTRL_2_REG) | + MVPP2_GMAC_PORT_RESET_MASK; + writel(val, port->base + MVPP2_GMAC_CTRL_2_REG); + + if (port->priv->hw_version >= MVPP22 && port->gop_id == 0) { + val = readl(port->base + MVPP22_XLG_CTRL0_REG) & + ~MVPP22_XLG_CTRL0_MAC_RESET_DIS; + writel(val, port->base + MVPP22_XLG_CTRL0_REG); + } +} + +static void mvpp22_pcs_reset_assert(struct mvpp2_port *port) +{ + struct mvpp2 *priv = port->priv; + void __iomem *mpcs, *xpcs; + u32 val; + + if (port->priv->hw_version == MVPP21 || port->gop_id != 0) + return; + + mpcs = priv->iface_base + MVPP22_MPCS_BASE(port->gop_id); + xpcs = priv->iface_base + MVPP22_XPCS_BASE(port->gop_id); + + val = readl(mpcs + MVPP22_MPCS_CLK_RESET); + val &= ~(MAC_CLK_RESET_MAC | MAC_CLK_RESET_SD_RX | MAC_CLK_RESET_SD_TX); + val |= MVPP22_MPCS_CLK_RESET_DIV_SET; + writel(val, mpcs + MVPP22_MPCS_CLK_RESET); + + val = readl(xpcs + MVPP22_XPCS_CFG0); + writel(val & ~MVPP22_XPCS_CFG0_RESET_DIS, xpcs + MVPP22_XPCS_CFG0); +} + +static void mvpp22_pcs_reset_deassert(struct mvpp2_port *port, + phy_interface_t interface) +{ + struct mvpp2 *priv = port->priv; + void __iomem *mpcs, *xpcs; + u32 val; + + if (port->priv->hw_version == MVPP21 || port->gop_id != 0) + return; + + mpcs = priv->iface_base + MVPP22_MPCS_BASE(port->gop_id); + xpcs = priv->iface_base + MVPP22_XPCS_BASE(port->gop_id); + + switch (interface) { + case PHY_INTERFACE_MODE_5GBASER: + case PHY_INTERFACE_MODE_10GBASER: + val = readl(mpcs + MVPP22_MPCS_CLK_RESET); + val |= MAC_CLK_RESET_MAC | MAC_CLK_RESET_SD_RX | + MAC_CLK_RESET_SD_TX; + val &= ~MVPP22_MPCS_CLK_RESET_DIV_SET; + writel(val, mpcs + MVPP22_MPCS_CLK_RESET); + break; + case PHY_INTERFACE_MODE_XAUI: + case PHY_INTERFACE_MODE_RXAUI: + val = readl(xpcs + MVPP22_XPCS_CFG0); + writel(val | MVPP22_XPCS_CFG0_RESET_DIS, xpcs + MVPP22_XPCS_CFG0); + break; + default: + break; + } +} + +/* Change maximum receive size of the port */ +static inline void mvpp2_gmac_max_rx_size_set(struct mvpp2_port *port) +{ + u32 val; + + val = readl(port->base + MVPP2_GMAC_CTRL_0_REG); + val &= ~MVPP2_GMAC_MAX_RX_SIZE_MASK; + val |= (((port->pkt_size - MVPP2_MH_SIZE) / 2) << + MVPP2_GMAC_MAX_RX_SIZE_OFFS); + writel(val, port->base + MVPP2_GMAC_CTRL_0_REG); +} + +/* Change maximum receive size of the port */ +static inline void mvpp2_xlg_max_rx_size_set(struct mvpp2_port *port) +{ + u32 val; + + val = readl(port->base + MVPP22_XLG_CTRL1_REG); + val &= ~MVPP22_XLG_CTRL1_FRAMESIZELIMIT_MASK; + val |= ((port->pkt_size - MVPP2_MH_SIZE) / 2) << + MVPP22_XLG_CTRL1_FRAMESIZELIMIT_OFFS; + writel(val, port->base + MVPP22_XLG_CTRL1_REG); +} + +/* Set defaults to the MVPP2 port */ +static void mvpp2_defaults_set(struct mvpp2_port *port) +{ + int tx_port_num, val, queue, lrxq; + + if (port->priv->hw_version == MVPP21) { + /* Update TX FIFO MIN Threshold */ + val = readl(port->base + MVPP2_GMAC_PORT_FIFO_CFG_1_REG); + val &= ~MVPP2_GMAC_TX_FIFO_MIN_TH_ALL_MASK; + /* Min. TX threshold must be less than minimal packet length */ + val |= MVPP2_GMAC_TX_FIFO_MIN_TH_MASK(64 - 4 - 2); + writel(val, port->base + MVPP2_GMAC_PORT_FIFO_CFG_1_REG); + } + + /* Disable Legacy WRR, Disable EJP, Release from reset */ + tx_port_num = mvpp2_egress_port(port); + mvpp2_write(port->priv, MVPP2_TXP_SCHED_PORT_INDEX_REG, + tx_port_num); + mvpp2_write(port->priv, MVPP2_TXP_SCHED_CMD_1_REG, 0); + + /* Set TXQ scheduling to Round-Robin */ + mvpp2_write(port->priv, MVPP2_TXP_SCHED_FIXED_PRIO_REG, 0); + + /* Close bandwidth for all queues */ + for (queue = 0; queue < MVPP2_MAX_TXQ; queue++) + mvpp2_write(port->priv, + MVPP2_TXQ_SCHED_TOKEN_CNTR_REG(queue), 0); + + /* Set refill period to 1 usec, refill tokens + * and bucket size to maximum + */ + mvpp2_write(port->priv, MVPP2_TXP_SCHED_PERIOD_REG, + port->priv->tclk / USEC_PER_SEC); + val = mvpp2_read(port->priv, MVPP2_TXP_SCHED_REFILL_REG); + val &= ~MVPP2_TXP_REFILL_PERIOD_ALL_MASK; + val |= MVPP2_TXP_REFILL_PERIOD_MASK(1); + val |= MVPP2_TXP_REFILL_TOKENS_ALL_MASK; + mvpp2_write(port->priv, MVPP2_TXP_SCHED_REFILL_REG, val); + val = MVPP2_TXP_TOKEN_SIZE_MAX; + mvpp2_write(port->priv, MVPP2_TXP_SCHED_TOKEN_SIZE_REG, val); + + /* Set MaximumLowLatencyPacketSize value to 256 */ + mvpp2_write(port->priv, MVPP2_RX_CTRL_REG(port->id), + MVPP2_RX_USE_PSEUDO_FOR_CSUM_MASK | + MVPP2_RX_LOW_LATENCY_PKT_SIZE(256)); + + /* Enable Rx cache snoop */ + for (lrxq = 0; lrxq < port->nrxqs; lrxq++) { + queue = port->rxqs[lrxq]->id; + val = mvpp2_read(port->priv, MVPP2_RXQ_CONFIG_REG(queue)); + val |= MVPP2_SNOOP_PKT_SIZE_MASK | + MVPP2_SNOOP_BUF_HDR_MASK; + mvpp2_write(port->priv, MVPP2_RXQ_CONFIG_REG(queue), val); + } + + /* At default, mask all interrupts to all present cpus */ + mvpp2_interrupts_disable(port); +} + +/* Enable/disable receiving packets */ +static void mvpp2_ingress_enable(struct mvpp2_port *port) +{ + u32 val; + int lrxq, queue; + + for (lrxq = 0; lrxq < port->nrxqs; lrxq++) { + queue = port->rxqs[lrxq]->id; + val = mvpp2_read(port->priv, MVPP2_RXQ_CONFIG_REG(queue)); + val &= ~MVPP2_RXQ_DISABLE_MASK; + mvpp2_write(port->priv, MVPP2_RXQ_CONFIG_REG(queue), val); + } +} + +static void mvpp2_ingress_disable(struct mvpp2_port *port) +{ + u32 val; + int lrxq, queue; + + for (lrxq = 0; lrxq < port->nrxqs; lrxq++) { + queue = port->rxqs[lrxq]->id; + val = mvpp2_read(port->priv, MVPP2_RXQ_CONFIG_REG(queue)); + val |= MVPP2_RXQ_DISABLE_MASK; + mvpp2_write(port->priv, MVPP2_RXQ_CONFIG_REG(queue), val); + } +} + +/* Enable transmit via physical egress queue + * - HW starts take descriptors from DRAM + */ +static void mvpp2_egress_enable(struct mvpp2_port *port) +{ + u32 qmap; + int queue; + int tx_port_num = mvpp2_egress_port(port); + + /* Enable all initialized TXs. */ + qmap = 0; + for (queue = 0; queue < port->ntxqs; queue++) { + struct mvpp2_tx_queue *txq = port->txqs[queue]; + + if (txq->descs) + qmap |= (1 << queue); + } + + mvpp2_write(port->priv, MVPP2_TXP_SCHED_PORT_INDEX_REG, tx_port_num); + mvpp2_write(port->priv, MVPP2_TXP_SCHED_Q_CMD_REG, qmap); +} + +/* Disable transmit via physical egress queue + * - HW doesn't take descriptors from DRAM + */ +static void mvpp2_egress_disable(struct mvpp2_port *port) +{ + u32 reg_data; + int delay; + int tx_port_num = mvpp2_egress_port(port); + + /* Issue stop command for active channels only */ + mvpp2_write(port->priv, MVPP2_TXP_SCHED_PORT_INDEX_REG, tx_port_num); + reg_data = (mvpp2_read(port->priv, MVPP2_TXP_SCHED_Q_CMD_REG)) & + MVPP2_TXP_SCHED_ENQ_MASK; + if (reg_data != 0) + mvpp2_write(port->priv, MVPP2_TXP_SCHED_Q_CMD_REG, + (reg_data << MVPP2_TXP_SCHED_DISQ_OFFSET)); + + /* Wait for all Tx activity to terminate. */ + delay = 0; + do { + if (delay >= MVPP2_TX_DISABLE_TIMEOUT_MSEC) { + netdev_warn(port->dev, + "Tx stop timed out, status=0x%08x\n", + reg_data); + break; + } + mdelay(1); + delay++; + + /* Check port TX Command register that all + * Tx queues are stopped + */ + reg_data = mvpp2_read(port->priv, MVPP2_TXP_SCHED_Q_CMD_REG); + } while (reg_data & MVPP2_TXP_SCHED_ENQ_MASK); +} + +/* Rx descriptors helper methods */ + +/* Get number of Rx descriptors occupied by received packets */ +static inline int +mvpp2_rxq_received(struct mvpp2_port *port, int rxq_id) +{ + u32 val = mvpp2_read(port->priv, MVPP2_RXQ_STATUS_REG(rxq_id)); + + return val & MVPP2_RXQ_OCCUPIED_MASK; +} + +/* Update Rx queue status with the number of occupied and available + * Rx descriptor slots. + */ +static inline void +mvpp2_rxq_status_update(struct mvpp2_port *port, int rxq_id, + int used_count, int free_count) +{ + /* Decrement the number of used descriptors and increment count + * increment the number of free descriptors. + */ + u32 val = used_count | (free_count << MVPP2_RXQ_NUM_NEW_OFFSET); + + mvpp2_write(port->priv, MVPP2_RXQ_STATUS_UPDATE_REG(rxq_id), val); +} + +/* Get pointer to next RX descriptor to be processed by SW */ +static inline struct mvpp2_rx_desc * +mvpp2_rxq_next_desc_get(struct mvpp2_rx_queue *rxq) +{ + int rx_desc = rxq->next_desc_to_proc; + + rxq->next_desc_to_proc = MVPP2_QUEUE_NEXT_DESC(rxq, rx_desc); + prefetch(rxq->descs + rxq->next_desc_to_proc); + return rxq->descs + rx_desc; +} + +/* Set rx queue offset */ +static void mvpp2_rxq_offset_set(struct mvpp2_port *port, + int prxq, int offset) +{ + u32 val; + + /* Convert offset from bytes to units of 32 bytes */ + offset = offset >> 5; + + val = mvpp2_read(port->priv, MVPP2_RXQ_CONFIG_REG(prxq)); + val &= ~MVPP2_RXQ_PACKET_OFFSET_MASK; + + /* Offset is in */ + val |= ((offset << MVPP2_RXQ_PACKET_OFFSET_OFFS) & + MVPP2_RXQ_PACKET_OFFSET_MASK); + + mvpp2_write(port->priv, MVPP2_RXQ_CONFIG_REG(prxq), val); +} + +/* Tx descriptors helper methods */ + +/* Get pointer to next Tx descriptor to be processed (send) by HW */ +static struct mvpp2_tx_desc * +mvpp2_txq_next_desc_get(struct mvpp2_tx_queue *txq) +{ + int tx_desc = txq->next_desc_to_proc; + + txq->next_desc_to_proc = MVPP2_QUEUE_NEXT_DESC(txq, tx_desc); + return txq->descs + tx_desc; +} + +/* Update HW with number of aggregated Tx descriptors to be sent + * + * Called only from mvpp2_tx(), so migration is disabled, using + * smp_processor_id() is OK. + */ +static void mvpp2_aggr_txq_pend_desc_add(struct mvpp2_port *port, int pending) +{ + /* aggregated access - relevant TXQ number is written in TX desc */ + mvpp2_thread_write(port->priv, + mvpp2_cpu_to_thread(port->priv, smp_processor_id()), + MVPP2_AGGR_TXQ_UPDATE_REG, pending); +} + +/* Check if there are enough free descriptors in aggregated txq. + * If not, update the number of occupied descriptors and repeat the check. + * + * Called only from mvpp2_tx(), so migration is disabled, using + * smp_processor_id() is OK. + */ +static int mvpp2_aggr_desc_num_check(struct mvpp2_port *port, + struct mvpp2_tx_queue *aggr_txq, int num) +{ + if ((aggr_txq->count + num) > MVPP2_AGGR_TXQ_SIZE) { + /* Update number of occupied aggregated Tx descriptors */ + unsigned int thread = + mvpp2_cpu_to_thread(port->priv, smp_processor_id()); + u32 val = mvpp2_read_relaxed(port->priv, + MVPP2_AGGR_TXQ_STATUS_REG(thread)); + + aggr_txq->count = val & MVPP2_AGGR_TXQ_PENDING_MASK; + + if ((aggr_txq->count + num) > MVPP2_AGGR_TXQ_SIZE) + return -ENOMEM; + } + return 0; +} + +/* Reserved Tx descriptors allocation request + * + * Called only from mvpp2_txq_reserved_desc_num_proc(), itself called + * only by mvpp2_tx(), so migration is disabled, using + * smp_processor_id() is OK. + */ +static int mvpp2_txq_alloc_reserved_desc(struct mvpp2_port *port, + struct mvpp2_tx_queue *txq, int num) +{ + unsigned int thread = mvpp2_cpu_to_thread(port->priv, smp_processor_id()); + struct mvpp2 *priv = port->priv; + u32 val; + + val = (txq->id << MVPP2_TXQ_RSVD_REQ_Q_OFFSET) | num; + mvpp2_thread_write_relaxed(priv, thread, MVPP2_TXQ_RSVD_REQ_REG, val); + + val = mvpp2_thread_read_relaxed(priv, thread, MVPP2_TXQ_RSVD_RSLT_REG); + + return val & MVPP2_TXQ_RSVD_RSLT_MASK; +} + +/* Check if there are enough reserved descriptors for transmission. + * If not, request chunk of reserved descriptors and check again. + */ +static int mvpp2_txq_reserved_desc_num_proc(struct mvpp2_port *port, + struct mvpp2_tx_queue *txq, + struct mvpp2_txq_pcpu *txq_pcpu, + int num) +{ + int req, desc_count; + unsigned int thread; + + if (txq_pcpu->reserved_num >= num) + return 0; + + /* Not enough descriptors reserved! Update the reserved descriptor + * count and check again. + */ + + desc_count = 0; + /* Compute total of used descriptors */ + for (thread = 0; thread < port->priv->nthreads; thread++) { + struct mvpp2_txq_pcpu *txq_pcpu_aux; + + txq_pcpu_aux = per_cpu_ptr(txq->pcpu, thread); + desc_count += txq_pcpu_aux->count; + desc_count += txq_pcpu_aux->reserved_num; + } + + req = max(MVPP2_CPU_DESC_CHUNK, num - txq_pcpu->reserved_num); + desc_count += req; + + if (desc_count > + (txq->size - (MVPP2_MAX_THREADS * MVPP2_CPU_DESC_CHUNK))) + return -ENOMEM; + + txq_pcpu->reserved_num += mvpp2_txq_alloc_reserved_desc(port, txq, req); + + /* OK, the descriptor could have been updated: check again. */ + if (txq_pcpu->reserved_num < num) + return -ENOMEM; + return 0; +} + +/* Release the last allocated Tx descriptor. Useful to handle DMA + * mapping failures in the Tx path. + */ +static void mvpp2_txq_desc_put(struct mvpp2_tx_queue *txq) +{ + if (txq->next_desc_to_proc == 0) + txq->next_desc_to_proc = txq->last_desc - 1; + else + txq->next_desc_to_proc--; +} + +/* Set Tx descriptors fields relevant for CSUM calculation */ +static u32 mvpp2_txq_desc_csum(int l3_offs, __be16 l3_proto, + int ip_hdr_len, int l4_proto) +{ + u32 command; + + /* fields: L3_offset, IP_hdrlen, L3_type, G_IPv4_chk, + * G_L4_chk, L4_type required only for checksum calculation + */ + command = (l3_offs << MVPP2_TXD_L3_OFF_SHIFT); + command |= (ip_hdr_len << MVPP2_TXD_IP_HLEN_SHIFT); + command |= MVPP2_TXD_IP_CSUM_DISABLE; + + if (l3_proto == htons(ETH_P_IP)) { + command &= ~MVPP2_TXD_IP_CSUM_DISABLE; /* enable IPv4 csum */ + command &= ~MVPP2_TXD_L3_IP6; /* enable IPv4 */ + } else { + command |= MVPP2_TXD_L3_IP6; /* enable IPv6 */ + } + + if (l4_proto == IPPROTO_TCP) { + command &= ~MVPP2_TXD_L4_UDP; /* enable TCP */ + command &= ~MVPP2_TXD_L4_CSUM_FRAG; /* generate L4 csum */ + } else if (l4_proto == IPPROTO_UDP) { + command |= MVPP2_TXD_L4_UDP; /* enable UDP */ + command &= ~MVPP2_TXD_L4_CSUM_FRAG; /* generate L4 csum */ + } else { + command |= MVPP2_TXD_L4_CSUM_NOT; + } + + return command; +} + +/* Get number of sent descriptors and decrement counter. + * The number of sent descriptors is returned. + * Per-thread access + * + * Called only from mvpp2_txq_done(), called from mvpp2_tx() + * (migration disabled) and from the TX completion tasklet (migration + * disabled) so using smp_processor_id() is OK. + */ +static inline int mvpp2_txq_sent_desc_proc(struct mvpp2_port *port, + struct mvpp2_tx_queue *txq) +{ + u32 val; + + /* Reading status reg resets transmitted descriptor counter */ + val = mvpp2_thread_read_relaxed(port->priv, + mvpp2_cpu_to_thread(port->priv, smp_processor_id()), + MVPP2_TXQ_SENT_REG(txq->id)); + + return (val & MVPP2_TRANSMITTED_COUNT_MASK) >> + MVPP2_TRANSMITTED_COUNT_OFFSET; +} + +/* Called through on_each_cpu(), so runs on all CPUs, with migration + * disabled, therefore using smp_processor_id() is OK. + */ +static void mvpp2_txq_sent_counter_clear(void *arg) +{ + struct mvpp2_port *port = arg; + int queue; + + /* If the thread isn't used, don't do anything */ + if (smp_processor_id() >= port->priv->nthreads) + return; + + for (queue = 0; queue < port->ntxqs; queue++) { + int id = port->txqs[queue]->id; + + mvpp2_thread_read(port->priv, + mvpp2_cpu_to_thread(port->priv, smp_processor_id()), + MVPP2_TXQ_SENT_REG(id)); + } +} + +/* Set max sizes for Tx queues */ +static void mvpp2_txp_max_tx_size_set(struct mvpp2_port *port) +{ + u32 val, size, mtu; + int txq, tx_port_num; + + mtu = port->pkt_size * 8; + if (mtu > MVPP2_TXP_MTU_MAX) + mtu = MVPP2_TXP_MTU_MAX; + + /* WA for wrong Token bucket update: Set MTU value = 3*real MTU value */ + mtu = 3 * mtu; + + /* Indirect access to registers */ + tx_port_num = mvpp2_egress_port(port); + mvpp2_write(port->priv, MVPP2_TXP_SCHED_PORT_INDEX_REG, tx_port_num); + + /* Set MTU */ + val = mvpp2_read(port->priv, MVPP2_TXP_SCHED_MTU_REG); + val &= ~MVPP2_TXP_MTU_MAX; + val |= mtu; + mvpp2_write(port->priv, MVPP2_TXP_SCHED_MTU_REG, val); + + /* TXP token size and all TXQs token size must be larger that MTU */ + val = mvpp2_read(port->priv, MVPP2_TXP_SCHED_TOKEN_SIZE_REG); + size = val & MVPP2_TXP_TOKEN_SIZE_MAX; + if (size < mtu) { + size = mtu; + val &= ~MVPP2_TXP_TOKEN_SIZE_MAX; + val |= size; + mvpp2_write(port->priv, MVPP2_TXP_SCHED_TOKEN_SIZE_REG, val); + } + + for (txq = 0; txq < port->ntxqs; txq++) { + val = mvpp2_read(port->priv, + MVPP2_TXQ_SCHED_TOKEN_SIZE_REG(txq)); + size = val & MVPP2_TXQ_TOKEN_SIZE_MAX; + + if (size < mtu) { + size = mtu; + val &= ~MVPP2_TXQ_TOKEN_SIZE_MAX; + val |= size; + mvpp2_write(port->priv, + MVPP2_TXQ_SCHED_TOKEN_SIZE_REG(txq), + val); + } + } +} + +/* Set the number of non-occupied descriptors threshold */ +static void mvpp2_set_rxq_free_tresh(struct mvpp2_port *port, + struct mvpp2_rx_queue *rxq) +{ + u32 val; + + mvpp2_write(port->priv, MVPP2_RXQ_NUM_REG, rxq->id); + + val = mvpp2_read(port->priv, MVPP2_RXQ_THRESH_REG); + val &= ~MVPP2_RXQ_NON_OCCUPIED_MASK; + val |= MSS_THRESHOLD_STOP << MVPP2_RXQ_NON_OCCUPIED_OFFSET; + mvpp2_write(port->priv, MVPP2_RXQ_THRESH_REG, val); +} + +/* Set the number of packets that will be received before Rx interrupt + * will be generated by HW. + */ +static void mvpp2_rx_pkts_coal_set(struct mvpp2_port *port, + struct mvpp2_rx_queue *rxq) +{ + unsigned int thread = mvpp2_cpu_to_thread(port->priv, get_cpu()); + + if (rxq->pkts_coal > MVPP2_OCCUPIED_THRESH_MASK) + rxq->pkts_coal = MVPP2_OCCUPIED_THRESH_MASK; + + mvpp2_thread_write(port->priv, thread, MVPP2_RXQ_NUM_REG, rxq->id); + mvpp2_thread_write(port->priv, thread, MVPP2_RXQ_THRESH_REG, + rxq->pkts_coal); + + put_cpu(); +} + +/* For some reason in the LSP this is done on each CPU. Why ? */ +static void mvpp2_tx_pkts_coal_set(struct mvpp2_port *port, + struct mvpp2_tx_queue *txq) +{ + unsigned int thread; + u32 val; + + if (txq->done_pkts_coal > MVPP2_TXQ_THRESH_MASK) + txq->done_pkts_coal = MVPP2_TXQ_THRESH_MASK; + + val = (txq->done_pkts_coal << MVPP2_TXQ_THRESH_OFFSET); + /* PKT-coalescing registers are per-queue + per-thread */ + for (thread = 0; thread < MVPP2_MAX_THREADS; thread++) { + mvpp2_thread_write(port->priv, thread, MVPP2_TXQ_NUM_REG, txq->id); + mvpp2_thread_write(port->priv, thread, MVPP2_TXQ_THRESH_REG, val); + } +} + +static u32 mvpp2_usec_to_cycles(u32 usec, unsigned long clk_hz) +{ + u64 tmp = (u64)clk_hz * usec; + + do_div(tmp, USEC_PER_SEC); + + return tmp > U32_MAX ? U32_MAX : tmp; +} + +static u32 mvpp2_cycles_to_usec(u32 cycles, unsigned long clk_hz) +{ + u64 tmp = (u64)cycles * USEC_PER_SEC; + + do_div(tmp, clk_hz); + + return tmp > U32_MAX ? U32_MAX : tmp; +} + +/* Set the time delay in usec before Rx interrupt */ +static void mvpp2_rx_time_coal_set(struct mvpp2_port *port, + struct mvpp2_rx_queue *rxq) +{ + unsigned long freq = port->priv->tclk; + u32 val = mvpp2_usec_to_cycles(rxq->time_coal, freq); + + if (val > MVPP2_MAX_ISR_RX_THRESHOLD) { + rxq->time_coal = + mvpp2_cycles_to_usec(MVPP2_MAX_ISR_RX_THRESHOLD, freq); + + /* re-evaluate to get actual register value */ + val = mvpp2_usec_to_cycles(rxq->time_coal, freq); + } + + mvpp2_write(port->priv, MVPP2_ISR_RX_THRESHOLD_REG(rxq->id), val); +} + +static void mvpp2_tx_time_coal_set(struct mvpp2_port *port) +{ + unsigned long freq = port->priv->tclk; + u32 val = mvpp2_usec_to_cycles(port->tx_time_coal, freq); + + if (val > MVPP2_MAX_ISR_TX_THRESHOLD) { + port->tx_time_coal = + mvpp2_cycles_to_usec(MVPP2_MAX_ISR_TX_THRESHOLD, freq); + + /* re-evaluate to get actual register value */ + val = mvpp2_usec_to_cycles(port->tx_time_coal, freq); + } + + mvpp2_write(port->priv, MVPP2_ISR_TX_THRESHOLD_REG(port->id), val); +} + +/* Free Tx queue skbuffs */ +static void mvpp2_txq_bufs_free(struct mvpp2_port *port, + struct mvpp2_tx_queue *txq, + struct mvpp2_txq_pcpu *txq_pcpu, int num) +{ + struct xdp_frame_bulk bq; + int i; + + xdp_frame_bulk_init(&bq); + + rcu_read_lock(); /* need for xdp_return_frame_bulk */ + + for (i = 0; i < num; i++) { + struct mvpp2_txq_pcpu_buf *tx_buf = + txq_pcpu->buffs + txq_pcpu->txq_get_index; + + if (!IS_TSO_HEADER(txq_pcpu, tx_buf->dma) && + tx_buf->type != MVPP2_TYPE_XDP_TX) + dma_unmap_single(port->dev->dev.parent, tx_buf->dma, + tx_buf->size, DMA_TO_DEVICE); + if (tx_buf->type == MVPP2_TYPE_SKB && tx_buf->skb) + dev_kfree_skb_any(tx_buf->skb); + else if (tx_buf->type == MVPP2_TYPE_XDP_TX || + tx_buf->type == MVPP2_TYPE_XDP_NDO) + xdp_return_frame_bulk(tx_buf->xdpf, &bq); + + mvpp2_txq_inc_get(txq_pcpu); + } + xdp_flush_frame_bulk(&bq); + + rcu_read_unlock(); +} + +static inline struct mvpp2_rx_queue *mvpp2_get_rx_queue(struct mvpp2_port *port, + u32 cause) +{ + int queue = fls(cause) - 1; + + return port->rxqs[queue]; +} + +static inline struct mvpp2_tx_queue *mvpp2_get_tx_queue(struct mvpp2_port *port, + u32 cause) +{ + int queue = fls(cause) - 1; + + return port->txqs[queue]; +} + +/* Handle end of transmission */ +static void mvpp2_txq_done(struct mvpp2_port *port, struct mvpp2_tx_queue *txq, + struct mvpp2_txq_pcpu *txq_pcpu) +{ + struct netdev_queue *nq = netdev_get_tx_queue(port->dev, txq->log_id); + int tx_done; + + if (txq_pcpu->thread != mvpp2_cpu_to_thread(port->priv, smp_processor_id())) + netdev_err(port->dev, "wrong cpu on the end of Tx processing\n"); + + tx_done = mvpp2_txq_sent_desc_proc(port, txq); + if (!tx_done) + return; + mvpp2_txq_bufs_free(port, txq, txq_pcpu, tx_done); + + txq_pcpu->count -= tx_done; + + if (netif_tx_queue_stopped(nq)) + if (txq_pcpu->count <= txq_pcpu->wake_threshold) + netif_tx_wake_queue(nq); +} + +static unsigned int mvpp2_tx_done(struct mvpp2_port *port, u32 cause, + unsigned int thread) +{ + struct mvpp2_tx_queue *txq; + struct mvpp2_txq_pcpu *txq_pcpu; + unsigned int tx_todo = 0; + + while (cause) { + txq = mvpp2_get_tx_queue(port, cause); + if (!txq) + break; + + txq_pcpu = per_cpu_ptr(txq->pcpu, thread); + + if (txq_pcpu->count) { + mvpp2_txq_done(port, txq, txq_pcpu); + tx_todo += txq_pcpu->count; + } + + cause &= ~(1 << txq->log_id); + } + return tx_todo; +} + +/* Rx/Tx queue initialization/cleanup methods */ + +/* Allocate and initialize descriptors for aggr TXQ */ +static int mvpp2_aggr_txq_init(struct platform_device *pdev, + struct mvpp2_tx_queue *aggr_txq, + unsigned int thread, struct mvpp2 *priv) +{ + u32 txq_dma; + + /* Allocate memory for TX descriptors */ + aggr_txq->descs = dma_alloc_coherent(&pdev->dev, + MVPP2_AGGR_TXQ_SIZE * MVPP2_DESC_ALIGNED_SIZE, + &aggr_txq->descs_dma, GFP_KERNEL); + if (!aggr_txq->descs) + return -ENOMEM; + + aggr_txq->last_desc = MVPP2_AGGR_TXQ_SIZE - 1; + + /* Aggr TXQ no reset WA */ + aggr_txq->next_desc_to_proc = mvpp2_read(priv, + MVPP2_AGGR_TXQ_INDEX_REG(thread)); + + /* Set Tx descriptors queue starting address indirect + * access + */ + if (priv->hw_version == MVPP21) + txq_dma = aggr_txq->descs_dma; + else + txq_dma = aggr_txq->descs_dma >> + MVPP22_AGGR_TXQ_DESC_ADDR_OFFS; + + mvpp2_write(priv, MVPP2_AGGR_TXQ_DESC_ADDR_REG(thread), txq_dma); + mvpp2_write(priv, MVPP2_AGGR_TXQ_DESC_SIZE_REG(thread), + MVPP2_AGGR_TXQ_SIZE); + + return 0; +} + +/* Create a specified Rx queue */ +static int mvpp2_rxq_init(struct mvpp2_port *port, + struct mvpp2_rx_queue *rxq) +{ + struct mvpp2 *priv = port->priv; + unsigned int thread; + u32 rxq_dma; + int err; + + rxq->size = port->rx_ring_size; + + /* Allocate memory for RX descriptors */ + rxq->descs = dma_alloc_coherent(port->dev->dev.parent, + rxq->size * MVPP2_DESC_ALIGNED_SIZE, + &rxq->descs_dma, GFP_KERNEL); + if (!rxq->descs) + return -ENOMEM; + + rxq->last_desc = rxq->size - 1; + + /* Zero occupied and non-occupied counters - direct access */ + mvpp2_write(port->priv, MVPP2_RXQ_STATUS_REG(rxq->id), 0); + + /* Set Rx descriptors queue starting address - indirect access */ + thread = mvpp2_cpu_to_thread(port->priv, get_cpu()); + mvpp2_thread_write(port->priv, thread, MVPP2_RXQ_NUM_REG, rxq->id); + if (port->priv->hw_version == MVPP21) + rxq_dma = rxq->descs_dma; + else + rxq_dma = rxq->descs_dma >> MVPP22_DESC_ADDR_OFFS; + mvpp2_thread_write(port->priv, thread, MVPP2_RXQ_DESC_ADDR_REG, rxq_dma); + mvpp2_thread_write(port->priv, thread, MVPP2_RXQ_DESC_SIZE_REG, rxq->size); + mvpp2_thread_write(port->priv, thread, MVPP2_RXQ_INDEX_REG, 0); + put_cpu(); + + /* Set Offset */ + mvpp2_rxq_offset_set(port, rxq->id, MVPP2_SKB_HEADROOM); + + /* Set coalescing pkts and time */ + mvpp2_rx_pkts_coal_set(port, rxq); + mvpp2_rx_time_coal_set(port, rxq); + + /* Set the number of non occupied descriptors threshold */ + mvpp2_set_rxq_free_tresh(port, rxq); + + /* Add number of descriptors ready for receiving packets */ + mvpp2_rxq_status_update(port, rxq->id, 0, rxq->size); + + if (priv->percpu_pools) { + err = xdp_rxq_info_reg(&rxq->xdp_rxq_short, port->dev, rxq->logic_rxq, 0); + if (err < 0) + goto err_free_dma; + + err = xdp_rxq_info_reg(&rxq->xdp_rxq_long, port->dev, rxq->logic_rxq, 0); + if (err < 0) + goto err_unregister_rxq_short; + + /* Every RXQ has a pool for short and another for long packets */ + err = xdp_rxq_info_reg_mem_model(&rxq->xdp_rxq_short, + MEM_TYPE_PAGE_POOL, + priv->page_pool[rxq->logic_rxq]); + if (err < 0) + goto err_unregister_rxq_long; + + err = xdp_rxq_info_reg_mem_model(&rxq->xdp_rxq_long, + MEM_TYPE_PAGE_POOL, + priv->page_pool[rxq->logic_rxq + + port->nrxqs]); + if (err < 0) + goto err_unregister_mem_rxq_short; + } + + return 0; + +err_unregister_mem_rxq_short: + xdp_rxq_info_unreg_mem_model(&rxq->xdp_rxq_short); +err_unregister_rxq_long: + xdp_rxq_info_unreg(&rxq->xdp_rxq_long); +err_unregister_rxq_short: + xdp_rxq_info_unreg(&rxq->xdp_rxq_short); +err_free_dma: + dma_free_coherent(port->dev->dev.parent, + rxq->size * MVPP2_DESC_ALIGNED_SIZE, + rxq->descs, rxq->descs_dma); + return err; +} + +/* Push packets received by the RXQ to BM pool */ +static void mvpp2_rxq_drop_pkts(struct mvpp2_port *port, + struct mvpp2_rx_queue *rxq) +{ + int rx_received, i; + + rx_received = mvpp2_rxq_received(port, rxq->id); + if (!rx_received) + return; + + for (i = 0; i < rx_received; i++) { + struct mvpp2_rx_desc *rx_desc = mvpp2_rxq_next_desc_get(rxq); + u32 status = mvpp2_rxdesc_status_get(port, rx_desc); + int pool; + + pool = (status & MVPP2_RXD_BM_POOL_ID_MASK) >> + MVPP2_RXD_BM_POOL_ID_OFFS; + + mvpp2_bm_pool_put(port, pool, + mvpp2_rxdesc_dma_addr_get(port, rx_desc), + mvpp2_rxdesc_cookie_get(port, rx_desc)); + } + mvpp2_rxq_status_update(port, rxq->id, rx_received, rx_received); +} + +/* Cleanup Rx queue */ +static void mvpp2_rxq_deinit(struct mvpp2_port *port, + struct mvpp2_rx_queue *rxq) +{ + unsigned int thread; + + if (xdp_rxq_info_is_reg(&rxq->xdp_rxq_short)) + xdp_rxq_info_unreg(&rxq->xdp_rxq_short); + + if (xdp_rxq_info_is_reg(&rxq->xdp_rxq_long)) + xdp_rxq_info_unreg(&rxq->xdp_rxq_long); + + mvpp2_rxq_drop_pkts(port, rxq); + + if (rxq->descs) + dma_free_coherent(port->dev->dev.parent, + rxq->size * MVPP2_DESC_ALIGNED_SIZE, + rxq->descs, + rxq->descs_dma); + + rxq->descs = NULL; + rxq->last_desc = 0; + rxq->next_desc_to_proc = 0; + rxq->descs_dma = 0; + + /* Clear Rx descriptors queue starting address and size; + * free descriptor number + */ + mvpp2_write(port->priv, MVPP2_RXQ_STATUS_REG(rxq->id), 0); + thread = mvpp2_cpu_to_thread(port->priv, get_cpu()); + mvpp2_thread_write(port->priv, thread, MVPP2_RXQ_NUM_REG, rxq->id); + mvpp2_thread_write(port->priv, thread, MVPP2_RXQ_DESC_ADDR_REG, 0); + mvpp2_thread_write(port->priv, thread, MVPP2_RXQ_DESC_SIZE_REG, 0); + put_cpu(); +} + +/* Create and initialize a Tx queue */ +static int mvpp2_txq_init(struct mvpp2_port *port, + struct mvpp2_tx_queue *txq) +{ + u32 val; + unsigned int thread; + int desc, desc_per_txq, tx_port_num; + struct mvpp2_txq_pcpu *txq_pcpu; + + txq->size = port->tx_ring_size; + + /* Allocate memory for Tx descriptors */ + txq->descs = dma_alloc_coherent(port->dev->dev.parent, + txq->size * MVPP2_DESC_ALIGNED_SIZE, + &txq->descs_dma, GFP_KERNEL); + if (!txq->descs) + return -ENOMEM; + + txq->last_desc = txq->size - 1; + + /* Set Tx descriptors queue starting address - indirect access */ + thread = mvpp2_cpu_to_thread(port->priv, get_cpu()); + mvpp2_thread_write(port->priv, thread, MVPP2_TXQ_NUM_REG, txq->id); + mvpp2_thread_write(port->priv, thread, MVPP2_TXQ_DESC_ADDR_REG, + txq->descs_dma); + mvpp2_thread_write(port->priv, thread, MVPP2_TXQ_DESC_SIZE_REG, + txq->size & MVPP2_TXQ_DESC_SIZE_MASK); + mvpp2_thread_write(port->priv, thread, MVPP2_TXQ_INDEX_REG, 0); + mvpp2_thread_write(port->priv, thread, MVPP2_TXQ_RSVD_CLR_REG, + txq->id << MVPP2_TXQ_RSVD_CLR_OFFSET); + val = mvpp2_thread_read(port->priv, thread, MVPP2_TXQ_PENDING_REG); + val &= ~MVPP2_TXQ_PENDING_MASK; + mvpp2_thread_write(port->priv, thread, MVPP2_TXQ_PENDING_REG, val); + + /* Calculate base address in prefetch buffer. We reserve 16 descriptors + * for each existing TXQ. + * TCONTS for PON port must be continuous from 0 to MVPP2_MAX_TCONT + * GBE ports assumed to be continuous from 0 to MVPP2_MAX_PORTS + */ + desc_per_txq = 16; + desc = (port->id * MVPP2_MAX_TXQ * desc_per_txq) + + (txq->log_id * desc_per_txq); + + mvpp2_thread_write(port->priv, thread, MVPP2_TXQ_PREF_BUF_REG, + MVPP2_PREF_BUF_PTR(desc) | MVPP2_PREF_BUF_SIZE_16 | + MVPP2_PREF_BUF_THRESH(desc_per_txq / 2)); + put_cpu(); + + /* WRR / EJP configuration - indirect access */ + tx_port_num = mvpp2_egress_port(port); + mvpp2_write(port->priv, MVPP2_TXP_SCHED_PORT_INDEX_REG, tx_port_num); + + val = mvpp2_read(port->priv, MVPP2_TXQ_SCHED_REFILL_REG(txq->log_id)); + val &= ~MVPP2_TXQ_REFILL_PERIOD_ALL_MASK; + val |= MVPP2_TXQ_REFILL_PERIOD_MASK(1); + val |= MVPP2_TXQ_REFILL_TOKENS_ALL_MASK; + mvpp2_write(port->priv, MVPP2_TXQ_SCHED_REFILL_REG(txq->log_id), val); + + val = MVPP2_TXQ_TOKEN_SIZE_MAX; + mvpp2_write(port->priv, MVPP2_TXQ_SCHED_TOKEN_SIZE_REG(txq->log_id), + val); + + for (thread = 0; thread < port->priv->nthreads; thread++) { + txq_pcpu = per_cpu_ptr(txq->pcpu, thread); + txq_pcpu->size = txq->size; + txq_pcpu->buffs = kmalloc_array(txq_pcpu->size, + sizeof(*txq_pcpu->buffs), + GFP_KERNEL); + if (!txq_pcpu->buffs) + return -ENOMEM; + + txq_pcpu->count = 0; + txq_pcpu->reserved_num = 0; + txq_pcpu->txq_put_index = 0; + txq_pcpu->txq_get_index = 0; + txq_pcpu->tso_headers = NULL; + + txq_pcpu->stop_threshold = txq->size - MVPP2_MAX_SKB_DESCS; + txq_pcpu->wake_threshold = txq_pcpu->stop_threshold / 2; + + txq_pcpu->tso_headers = + dma_alloc_coherent(port->dev->dev.parent, + txq_pcpu->size * TSO_HEADER_SIZE, + &txq_pcpu->tso_headers_dma, + GFP_KERNEL); + if (!txq_pcpu->tso_headers) + return -ENOMEM; + } + + return 0; +} + +/* Free allocated TXQ resources */ +static void mvpp2_txq_deinit(struct mvpp2_port *port, + struct mvpp2_tx_queue *txq) +{ + struct mvpp2_txq_pcpu *txq_pcpu; + unsigned int thread; + + for (thread = 0; thread < port->priv->nthreads; thread++) { + txq_pcpu = per_cpu_ptr(txq->pcpu, thread); + kfree(txq_pcpu->buffs); + + if (txq_pcpu->tso_headers) + dma_free_coherent(port->dev->dev.parent, + txq_pcpu->size * TSO_HEADER_SIZE, + txq_pcpu->tso_headers, + txq_pcpu->tso_headers_dma); + + txq_pcpu->tso_headers = NULL; + } + + if (txq->descs) + dma_free_coherent(port->dev->dev.parent, + txq->size * MVPP2_DESC_ALIGNED_SIZE, + txq->descs, txq->descs_dma); + + txq->descs = NULL; + txq->last_desc = 0; + txq->next_desc_to_proc = 0; + txq->descs_dma = 0; + + /* Set minimum bandwidth for disabled TXQs */ + mvpp2_write(port->priv, MVPP2_TXQ_SCHED_TOKEN_CNTR_REG(txq->log_id), 0); + + /* Set Tx descriptors queue starting address and size */ + thread = mvpp2_cpu_to_thread(port->priv, get_cpu()); + mvpp2_thread_write(port->priv, thread, MVPP2_TXQ_NUM_REG, txq->id); + mvpp2_thread_write(port->priv, thread, MVPP2_TXQ_DESC_ADDR_REG, 0); + mvpp2_thread_write(port->priv, thread, MVPP2_TXQ_DESC_SIZE_REG, 0); + put_cpu(); +} + +/* Cleanup Tx ports */ +static void mvpp2_txq_clean(struct mvpp2_port *port, struct mvpp2_tx_queue *txq) +{ + struct mvpp2_txq_pcpu *txq_pcpu; + int delay, pending; + unsigned int thread = mvpp2_cpu_to_thread(port->priv, get_cpu()); + u32 val; + + mvpp2_thread_write(port->priv, thread, MVPP2_TXQ_NUM_REG, txq->id); + val = mvpp2_thread_read(port->priv, thread, MVPP2_TXQ_PREF_BUF_REG); + val |= MVPP2_TXQ_DRAIN_EN_MASK; + mvpp2_thread_write(port->priv, thread, MVPP2_TXQ_PREF_BUF_REG, val); + + /* The napi queue has been stopped so wait for all packets + * to be transmitted. + */ + delay = 0; + do { + if (delay >= MVPP2_TX_PENDING_TIMEOUT_MSEC) { + netdev_warn(port->dev, + "port %d: cleaning queue %d timed out\n", + port->id, txq->log_id); + break; + } + mdelay(1); + delay++; + + pending = mvpp2_thread_read(port->priv, thread, + MVPP2_TXQ_PENDING_REG); + pending &= MVPP2_TXQ_PENDING_MASK; + } while (pending); + + val &= ~MVPP2_TXQ_DRAIN_EN_MASK; + mvpp2_thread_write(port->priv, thread, MVPP2_TXQ_PREF_BUF_REG, val); + put_cpu(); + + for (thread = 0; thread < port->priv->nthreads; thread++) { + txq_pcpu = per_cpu_ptr(txq->pcpu, thread); + + /* Release all packets */ + mvpp2_txq_bufs_free(port, txq, txq_pcpu, txq_pcpu->count); + + /* Reset queue */ + txq_pcpu->count = 0; + txq_pcpu->txq_put_index = 0; + txq_pcpu->txq_get_index = 0; + } +} + +/* Cleanup all Tx queues */ +static void mvpp2_cleanup_txqs(struct mvpp2_port *port) +{ + struct mvpp2_tx_queue *txq; + int queue; + u32 val; + + val = mvpp2_read(port->priv, MVPP2_TX_PORT_FLUSH_REG); + + /* Reset Tx ports and delete Tx queues */ + val |= MVPP2_TX_PORT_FLUSH_MASK(port->id); + mvpp2_write(port->priv, MVPP2_TX_PORT_FLUSH_REG, val); + + for (queue = 0; queue < port->ntxqs; queue++) { + txq = port->txqs[queue]; + mvpp2_txq_clean(port, txq); + mvpp2_txq_deinit(port, txq); + } + + on_each_cpu(mvpp2_txq_sent_counter_clear, port, 1); + + val &= ~MVPP2_TX_PORT_FLUSH_MASK(port->id); + mvpp2_write(port->priv, MVPP2_TX_PORT_FLUSH_REG, val); +} + +/* Cleanup all Rx queues */ +static void mvpp2_cleanup_rxqs(struct mvpp2_port *port) +{ + int queue; + + for (queue = 0; queue < port->nrxqs; queue++) + mvpp2_rxq_deinit(port, port->rxqs[queue]); + + if (port->tx_fc) + mvpp2_rxq_disable_fc(port); +} + +/* Init all Rx queues for port */ +static int mvpp2_setup_rxqs(struct mvpp2_port *port) +{ + int queue, err; + + for (queue = 0; queue < port->nrxqs; queue++) { + err = mvpp2_rxq_init(port, port->rxqs[queue]); + if (err) + goto err_cleanup; + } + + if (port->tx_fc) + mvpp2_rxq_enable_fc(port); + + return 0; + +err_cleanup: + mvpp2_cleanup_rxqs(port); + return err; +} + +/* Init all tx queues for port */ +static int mvpp2_setup_txqs(struct mvpp2_port *port) +{ + struct mvpp2_tx_queue *txq; + int queue, err; + + for (queue = 0; queue < port->ntxqs; queue++) { + txq = port->txqs[queue]; + err = mvpp2_txq_init(port, txq); + if (err) + goto err_cleanup; + + /* Assign this queue to a CPU */ + if (queue < num_possible_cpus()) + netif_set_xps_queue(port->dev, cpumask_of(queue), queue); + } + + if (port->has_tx_irqs) { + mvpp2_tx_time_coal_set(port); + for (queue = 0; queue < port->ntxqs; queue++) { + txq = port->txqs[queue]; + mvpp2_tx_pkts_coal_set(port, txq); + } + } + + on_each_cpu(mvpp2_txq_sent_counter_clear, port, 1); + return 0; + +err_cleanup: + mvpp2_cleanup_txqs(port); + return err; +} + +/* The callback for per-port interrupt */ +static irqreturn_t mvpp2_isr(int irq, void *dev_id) +{ + struct mvpp2_queue_vector *qv = dev_id; + + mvpp2_qvec_interrupt_disable(qv); + + napi_schedule(&qv->napi); + + return IRQ_HANDLED; +} + +static void mvpp2_isr_handle_ptp_queue(struct mvpp2_port *port, int nq) +{ + struct skb_shared_hwtstamps shhwtstamps; + struct mvpp2_hwtstamp_queue *queue; + struct sk_buff *skb; + void __iomem *ptp_q; + unsigned int id; + u32 r0, r1, r2; + + ptp_q = port->priv->iface_base + MVPP22_PTP_BASE(port->gop_id); + if (nq) + ptp_q += MVPP22_PTP_TX_Q1_R0 - MVPP22_PTP_TX_Q0_R0; + + queue = &port->tx_hwtstamp_queue[nq]; + + while (1) { + r0 = readl_relaxed(ptp_q + MVPP22_PTP_TX_Q0_R0) & 0xffff; + if (!r0) + break; + + r1 = readl_relaxed(ptp_q + MVPP22_PTP_TX_Q0_R1) & 0xffff; + r2 = readl_relaxed(ptp_q + MVPP22_PTP_TX_Q0_R2) & 0xffff; + + id = (r0 >> 1) & 31; + + skb = queue->skb[id]; + queue->skb[id] = NULL; + if (skb) { + u32 ts = r2 << 19 | r1 << 3 | r0 >> 13; + + mvpp22_tai_tstamp(port->priv->tai, ts, &shhwtstamps); + skb_tstamp_tx(skb, &shhwtstamps); + dev_kfree_skb_any(skb); + } + } +} + +static void mvpp2_isr_handle_ptp(struct mvpp2_port *port) +{ + void __iomem *ptp; + u32 val; + + ptp = port->priv->iface_base + MVPP22_PTP_BASE(port->gop_id); + val = readl(ptp + MVPP22_PTP_INT_CAUSE); + if (val & MVPP22_PTP_INT_CAUSE_QUEUE0) + mvpp2_isr_handle_ptp_queue(port, 0); + if (val & MVPP22_PTP_INT_CAUSE_QUEUE1) + mvpp2_isr_handle_ptp_queue(port, 1); +} + +static void mvpp2_isr_handle_link(struct mvpp2_port *port, bool link) +{ + struct net_device *dev = port->dev; + + if (port->phylink) { + phylink_mac_change(port->phylink, link); + return; + } + + if (!netif_running(dev)) + return; + + if (link) { + mvpp2_interrupts_enable(port); + + mvpp2_egress_enable(port); + mvpp2_ingress_enable(port); + netif_carrier_on(dev); + netif_tx_wake_all_queues(dev); + } else { + netif_tx_stop_all_queues(dev); + netif_carrier_off(dev); + mvpp2_ingress_disable(port); + mvpp2_egress_disable(port); + + mvpp2_interrupts_disable(port); + } +} + +static void mvpp2_isr_handle_xlg(struct mvpp2_port *port) +{ + bool link; + u32 val; + + val = readl(port->base + MVPP22_XLG_INT_STAT); + if (val & MVPP22_XLG_INT_STAT_LINK) { + val = readl(port->base + MVPP22_XLG_STATUS); + link = (val & MVPP22_XLG_STATUS_LINK_UP); + mvpp2_isr_handle_link(port, link); + } +} + +static void mvpp2_isr_handle_gmac_internal(struct mvpp2_port *port) +{ + bool link; + u32 val; + + if (phy_interface_mode_is_rgmii(port->phy_interface) || + phy_interface_mode_is_8023z(port->phy_interface) || + port->phy_interface == PHY_INTERFACE_MODE_SGMII) { + val = readl(port->base + MVPP22_GMAC_INT_STAT); + if (val & MVPP22_GMAC_INT_STAT_LINK) { + val = readl(port->base + MVPP2_GMAC_STATUS0); + link = (val & MVPP2_GMAC_STATUS0_LINK_UP); + mvpp2_isr_handle_link(port, link); + } + } +} + +/* Per-port interrupt for link status changes */ +static irqreturn_t mvpp2_port_isr(int irq, void *dev_id) +{ + struct mvpp2_port *port = (struct mvpp2_port *)dev_id; + u32 val; + + mvpp22_gop_mask_irq(port); + + if (mvpp2_port_supports_xlg(port) && + mvpp2_is_xlg(port->phy_interface)) { + /* Check the external status register */ + val = readl(port->base + MVPP22_XLG_EXT_INT_STAT); + if (val & MVPP22_XLG_EXT_INT_STAT_XLG) + mvpp2_isr_handle_xlg(port); + if (val & MVPP22_XLG_EXT_INT_STAT_PTP) + mvpp2_isr_handle_ptp(port); + } else { + /* If it's not the XLG, we must be using the GMAC. + * Check the summary status. + */ + val = readl(port->base + MVPP22_GMAC_INT_SUM_STAT); + if (val & MVPP22_GMAC_INT_SUM_STAT_INTERNAL) + mvpp2_isr_handle_gmac_internal(port); + if (val & MVPP22_GMAC_INT_SUM_STAT_PTP) + mvpp2_isr_handle_ptp(port); + } + + mvpp22_gop_unmask_irq(port); + return IRQ_HANDLED; +} + +static enum hrtimer_restart mvpp2_hr_timer_cb(struct hrtimer *timer) +{ + struct net_device *dev; + struct mvpp2_port *port; + struct mvpp2_port_pcpu *port_pcpu; + unsigned int tx_todo, cause; + + port_pcpu = container_of(timer, struct mvpp2_port_pcpu, tx_done_timer); + dev = port_pcpu->dev; + + if (!netif_running(dev)) + return HRTIMER_NORESTART; + + port_pcpu->timer_scheduled = false; + port = netdev_priv(dev); + + /* Process all the Tx queues */ + cause = (1 << port->ntxqs) - 1; + tx_todo = mvpp2_tx_done(port, cause, + mvpp2_cpu_to_thread(port->priv, smp_processor_id())); + + /* Set the timer in case not all the packets were processed */ + if (tx_todo && !port_pcpu->timer_scheduled) { + port_pcpu->timer_scheduled = true; + hrtimer_forward_now(&port_pcpu->tx_done_timer, + MVPP2_TXDONE_HRTIMER_PERIOD_NS); + + return HRTIMER_RESTART; + } + return HRTIMER_NORESTART; +} + +/* Main RX/TX processing routines */ + +/* Display more error info */ +static void mvpp2_rx_error(struct mvpp2_port *port, + struct mvpp2_rx_desc *rx_desc) +{ + u32 status = mvpp2_rxdesc_status_get(port, rx_desc); + size_t sz = mvpp2_rxdesc_size_get(port, rx_desc); + char *err_str = NULL; + + switch (status & MVPP2_RXD_ERR_CODE_MASK) { + case MVPP2_RXD_ERR_CRC: + err_str = "crc"; + break; + case MVPP2_RXD_ERR_OVERRUN: + err_str = "overrun"; + break; + case MVPP2_RXD_ERR_RESOURCE: + err_str = "resource"; + break; + } + if (err_str && net_ratelimit()) + netdev_err(port->dev, + "bad rx status %08x (%s error), size=%zu\n", + status, err_str, sz); +} + +/* Handle RX checksum offload */ +static int mvpp2_rx_csum(struct mvpp2_port *port, u32 status) +{ + if (((status & MVPP2_RXD_L3_IP4) && + !(status & MVPP2_RXD_IP4_HEADER_ERR)) || + (status & MVPP2_RXD_L3_IP6)) + if (((status & MVPP2_RXD_L4_UDP) || + (status & MVPP2_RXD_L4_TCP)) && + (status & MVPP2_RXD_L4_CSUM_OK)) + return CHECKSUM_UNNECESSARY; + + return CHECKSUM_NONE; +} + +/* Allocate a new skb and add it to BM pool */ +static int mvpp2_rx_refill(struct mvpp2_port *port, + struct mvpp2_bm_pool *bm_pool, + struct page_pool *page_pool, int pool) +{ + dma_addr_t dma_addr; + phys_addr_t phys_addr; + void *buf; + + buf = mvpp2_buf_alloc(port, bm_pool, page_pool, + &dma_addr, &phys_addr, GFP_ATOMIC); + if (!buf) + return -ENOMEM; + + mvpp2_bm_pool_put(port, pool, dma_addr, phys_addr); + + return 0; +} + +/* Handle tx checksum */ +static u32 mvpp2_skb_tx_csum(struct mvpp2_port *port, struct sk_buff *skb) +{ + if (skb->ip_summed == CHECKSUM_PARTIAL) { + int ip_hdr_len = 0; + u8 l4_proto; + __be16 l3_proto = vlan_get_protocol(skb); + + if (l3_proto == htons(ETH_P_IP)) { + struct iphdr *ip4h = ip_hdr(skb); + + /* Calculate IPv4 checksum and L4 checksum */ + ip_hdr_len = ip4h->ihl; + l4_proto = ip4h->protocol; + } else if (l3_proto == htons(ETH_P_IPV6)) { + struct ipv6hdr *ip6h = ipv6_hdr(skb); + + /* Read l4_protocol from one of IPv6 extra headers */ + if (skb_network_header_len(skb) > 0) + ip_hdr_len = (skb_network_header_len(skb) >> 2); + l4_proto = ip6h->nexthdr; + } else { + return MVPP2_TXD_L4_CSUM_NOT; + } + + return mvpp2_txq_desc_csum(skb_network_offset(skb), + l3_proto, ip_hdr_len, l4_proto); + } + + return MVPP2_TXD_L4_CSUM_NOT | MVPP2_TXD_IP_CSUM_DISABLE; +} + +static void mvpp2_xdp_finish_tx(struct mvpp2_port *port, u16 txq_id, int nxmit, int nxmit_byte) +{ + unsigned int thread = mvpp2_cpu_to_thread(port->priv, smp_processor_id()); + struct mvpp2_tx_queue *aggr_txq; + struct mvpp2_txq_pcpu *txq_pcpu; + struct mvpp2_tx_queue *txq; + struct netdev_queue *nq; + + txq = port->txqs[txq_id]; + txq_pcpu = per_cpu_ptr(txq->pcpu, thread); + nq = netdev_get_tx_queue(port->dev, txq_id); + aggr_txq = &port->priv->aggr_txqs[thread]; + + txq_pcpu->reserved_num -= nxmit; + txq_pcpu->count += nxmit; + aggr_txq->count += nxmit; + + /* Enable transmit */ + wmb(); + mvpp2_aggr_txq_pend_desc_add(port, nxmit); + + if (txq_pcpu->count >= txq_pcpu->stop_threshold) + netif_tx_stop_queue(nq); + + /* Finalize TX processing */ + if (!port->has_tx_irqs && txq_pcpu->count >= txq->done_pkts_coal) + mvpp2_txq_done(port, txq, txq_pcpu); +} + +static int +mvpp2_xdp_submit_frame(struct mvpp2_port *port, u16 txq_id, + struct xdp_frame *xdpf, bool dma_map) +{ + unsigned int thread = mvpp2_cpu_to_thread(port->priv, smp_processor_id()); + u32 tx_cmd = MVPP2_TXD_L4_CSUM_NOT | MVPP2_TXD_IP_CSUM_DISABLE | + MVPP2_TXD_F_DESC | MVPP2_TXD_L_DESC; + enum mvpp2_tx_buf_type buf_type; + struct mvpp2_txq_pcpu *txq_pcpu; + struct mvpp2_tx_queue *aggr_txq; + struct mvpp2_tx_desc *tx_desc; + struct mvpp2_tx_queue *txq; + int ret = MVPP2_XDP_TX; + dma_addr_t dma_addr; + + txq = port->txqs[txq_id]; + txq_pcpu = per_cpu_ptr(txq->pcpu, thread); + aggr_txq = &port->priv->aggr_txqs[thread]; + + /* Check number of available descriptors */ + if (mvpp2_aggr_desc_num_check(port, aggr_txq, 1) || + mvpp2_txq_reserved_desc_num_proc(port, txq, txq_pcpu, 1)) { + ret = MVPP2_XDP_DROPPED; + goto out; + } + + /* Get a descriptor for the first part of the packet */ + tx_desc = mvpp2_txq_next_desc_get(aggr_txq); + mvpp2_txdesc_txq_set(port, tx_desc, txq->id); + mvpp2_txdesc_size_set(port, tx_desc, xdpf->len); + + if (dma_map) { + /* XDP_REDIRECT or AF_XDP */ + dma_addr = dma_map_single(port->dev->dev.parent, xdpf->data, + xdpf->len, DMA_TO_DEVICE); + + if (unlikely(dma_mapping_error(port->dev->dev.parent, dma_addr))) { + mvpp2_txq_desc_put(txq); + ret = MVPP2_XDP_DROPPED; + goto out; + } + + buf_type = MVPP2_TYPE_XDP_NDO; + } else { + /* XDP_TX */ + struct page *page = virt_to_page(xdpf->data); + + dma_addr = page_pool_get_dma_addr(page) + + sizeof(*xdpf) + xdpf->headroom; + dma_sync_single_for_device(port->dev->dev.parent, dma_addr, + xdpf->len, DMA_BIDIRECTIONAL); + + buf_type = MVPP2_TYPE_XDP_TX; + } + + mvpp2_txdesc_dma_addr_set(port, tx_desc, dma_addr); + + mvpp2_txdesc_cmd_set(port, tx_desc, tx_cmd); + mvpp2_txq_inc_put(port, txq_pcpu, xdpf, tx_desc, buf_type); + +out: + return ret; +} + +static int +mvpp2_xdp_xmit_back(struct mvpp2_port *port, struct xdp_buff *xdp) +{ + struct mvpp2_pcpu_stats *stats = this_cpu_ptr(port->stats); + struct xdp_frame *xdpf; + u16 txq_id; + int ret; + + xdpf = xdp_convert_buff_to_frame(xdp); + if (unlikely(!xdpf)) + return MVPP2_XDP_DROPPED; + + /* The first of the TX queues are used for XPS, + * the second half for XDP_TX + */ + txq_id = mvpp2_cpu_to_thread(port->priv, smp_processor_id()) + (port->ntxqs / 2); + + ret = mvpp2_xdp_submit_frame(port, txq_id, xdpf, false); + if (ret == MVPP2_XDP_TX) { + u64_stats_update_begin(&stats->syncp); + stats->tx_bytes += xdpf->len; + stats->tx_packets++; + stats->xdp_tx++; + u64_stats_update_end(&stats->syncp); + + mvpp2_xdp_finish_tx(port, txq_id, 1, xdpf->len); + } else { + u64_stats_update_begin(&stats->syncp); + stats->xdp_tx_err++; + u64_stats_update_end(&stats->syncp); + } + + return ret; +} + +static int +mvpp2_xdp_xmit(struct net_device *dev, int num_frame, + struct xdp_frame **frames, u32 flags) +{ + struct mvpp2_port *port = netdev_priv(dev); + int i, nxmit_byte = 0, nxmit = 0; + struct mvpp2_pcpu_stats *stats; + u16 txq_id; + u32 ret; + + if (unlikely(test_bit(0, &port->state))) + return -ENETDOWN; + + if (unlikely(flags & ~XDP_XMIT_FLAGS_MASK)) + return -EINVAL; + + /* The first of the TX queues are used for XPS, + * the second half for XDP_TX + */ + txq_id = mvpp2_cpu_to_thread(port->priv, smp_processor_id()) + (port->ntxqs / 2); + + for (i = 0; i < num_frame; i++) { + ret = mvpp2_xdp_submit_frame(port, txq_id, frames[i], true); + if (ret != MVPP2_XDP_TX) + break; + + nxmit_byte += frames[i]->len; + nxmit++; + } + + if (likely(nxmit > 0)) + mvpp2_xdp_finish_tx(port, txq_id, nxmit, nxmit_byte); + + stats = this_cpu_ptr(port->stats); + u64_stats_update_begin(&stats->syncp); + stats->tx_bytes += nxmit_byte; + stats->tx_packets += nxmit; + stats->xdp_xmit += nxmit; + stats->xdp_xmit_err += num_frame - nxmit; + u64_stats_update_end(&stats->syncp); + + return nxmit; +} + +static int +mvpp2_run_xdp(struct mvpp2_port *port, struct bpf_prog *prog, + struct xdp_buff *xdp, struct page_pool *pp, + struct mvpp2_pcpu_stats *stats) +{ + unsigned int len, sync, err; + struct page *page; + u32 ret, act; + + len = xdp->data_end - xdp->data_hard_start - MVPP2_SKB_HEADROOM; + act = bpf_prog_run_xdp(prog, xdp); + + /* Due xdp_adjust_tail: DMA sync for_device cover max len CPU touch */ + sync = xdp->data_end - xdp->data_hard_start - MVPP2_SKB_HEADROOM; + sync = max(sync, len); + + switch (act) { + case XDP_PASS: + stats->xdp_pass++; + ret = MVPP2_XDP_PASS; + break; + case XDP_REDIRECT: + err = xdp_do_redirect(port->dev, xdp, prog); + if (unlikely(err)) { + ret = MVPP2_XDP_DROPPED; + page = virt_to_head_page(xdp->data); + page_pool_put_page(pp, page, sync, true); + } else { + ret = MVPP2_XDP_REDIR; + stats->xdp_redirect++; + } + break; + case XDP_TX: + ret = mvpp2_xdp_xmit_back(port, xdp); + if (ret != MVPP2_XDP_TX) { + page = virt_to_head_page(xdp->data); + page_pool_put_page(pp, page, sync, true); + } + break; + default: + bpf_warn_invalid_xdp_action(port->dev, prog, act); + fallthrough; + case XDP_ABORTED: + trace_xdp_exception(port->dev, prog, act); + fallthrough; + case XDP_DROP: + page = virt_to_head_page(xdp->data); + page_pool_put_page(pp, page, sync, true); + ret = MVPP2_XDP_DROPPED; + stats->xdp_drop++; + break; + } + + return ret; +} + +static void mvpp2_buff_hdr_pool_put(struct mvpp2_port *port, struct mvpp2_rx_desc *rx_desc, + int pool, u32 rx_status) +{ + phys_addr_t phys_addr, phys_addr_next; + dma_addr_t dma_addr, dma_addr_next; + struct mvpp2_buff_hdr *buff_hdr; + + phys_addr = mvpp2_rxdesc_dma_addr_get(port, rx_desc); + dma_addr = mvpp2_rxdesc_cookie_get(port, rx_desc); + + do { + buff_hdr = (struct mvpp2_buff_hdr *)phys_to_virt(phys_addr); + + phys_addr_next = le32_to_cpu(buff_hdr->next_phys_addr); + dma_addr_next = le32_to_cpu(buff_hdr->next_dma_addr); + + if (port->priv->hw_version >= MVPP22) { + phys_addr_next |= ((u64)buff_hdr->next_phys_addr_high << 32); + dma_addr_next |= ((u64)buff_hdr->next_dma_addr_high << 32); + } + + mvpp2_bm_pool_put(port, pool, dma_addr, phys_addr); + + phys_addr = phys_addr_next; + dma_addr = dma_addr_next; + + } while (!MVPP2_B_HDR_INFO_IS_LAST(le16_to_cpu(buff_hdr->info))); +} + +/* Main rx processing */ +static int mvpp2_rx(struct mvpp2_port *port, struct napi_struct *napi, + int rx_todo, struct mvpp2_rx_queue *rxq) +{ + struct net_device *dev = port->dev; + struct mvpp2_pcpu_stats ps = {}; + enum dma_data_direction dma_dir; + struct bpf_prog *xdp_prog; + struct xdp_buff xdp; + int rx_received; + int rx_done = 0; + u32 xdp_ret = 0; + + xdp_prog = READ_ONCE(port->xdp_prog); + + /* Get number of received packets and clamp the to-do */ + rx_received = mvpp2_rxq_received(port, rxq->id); + if (rx_todo > rx_received) + rx_todo = rx_received; + + while (rx_done < rx_todo) { + struct mvpp2_rx_desc *rx_desc = mvpp2_rxq_next_desc_get(rxq); + struct mvpp2_bm_pool *bm_pool; + struct page_pool *pp = NULL; + struct sk_buff *skb; + unsigned int frag_size; + dma_addr_t dma_addr; + phys_addr_t phys_addr; + u32 rx_status, timestamp; + int pool, rx_bytes, err, ret; + struct page *page; + void *data; + + phys_addr = mvpp2_rxdesc_cookie_get(port, rx_desc); + data = (void *)phys_to_virt(phys_addr); + page = virt_to_page(data); + prefetch(page); + + rx_done++; + rx_status = mvpp2_rxdesc_status_get(port, rx_desc); + rx_bytes = mvpp2_rxdesc_size_get(port, rx_desc); + rx_bytes -= MVPP2_MH_SIZE; + dma_addr = mvpp2_rxdesc_dma_addr_get(port, rx_desc); + + pool = (rx_status & MVPP2_RXD_BM_POOL_ID_MASK) >> + MVPP2_RXD_BM_POOL_ID_OFFS; + bm_pool = &port->priv->bm_pools[pool]; + + if (port->priv->percpu_pools) { + pp = port->priv->page_pool[pool]; + dma_dir = page_pool_get_dma_dir(pp); + } else { + dma_dir = DMA_FROM_DEVICE; + } + + dma_sync_single_for_cpu(dev->dev.parent, dma_addr, + rx_bytes + MVPP2_MH_SIZE, + dma_dir); + + /* Buffer header not supported */ + if (rx_status & MVPP2_RXD_BUF_HDR) + goto err_drop_frame; + + /* In case of an error, release the requested buffer pointer + * to the Buffer Manager. This request process is controlled + * by the hardware, and the information about the buffer is + * comprised by the RX descriptor. + */ + if (rx_status & MVPP2_RXD_ERR_SUMMARY) + goto err_drop_frame; + + /* Prefetch header */ + prefetch(data + MVPP2_MH_SIZE + MVPP2_SKB_HEADROOM); + + if (bm_pool->frag_size > PAGE_SIZE) + frag_size = 0; + else + frag_size = bm_pool->frag_size; + + if (xdp_prog) { + struct xdp_rxq_info *xdp_rxq; + + if (bm_pool->pkt_size == MVPP2_BM_SHORT_PKT_SIZE) + xdp_rxq = &rxq->xdp_rxq_short; + else + xdp_rxq = &rxq->xdp_rxq_long; + + xdp_init_buff(&xdp, PAGE_SIZE, xdp_rxq); + xdp_prepare_buff(&xdp, data, + MVPP2_MH_SIZE + MVPP2_SKB_HEADROOM, + rx_bytes, false); + + ret = mvpp2_run_xdp(port, xdp_prog, &xdp, pp, &ps); + + if (ret) { + xdp_ret |= ret; + err = mvpp2_rx_refill(port, bm_pool, pp, pool); + if (err) { + netdev_err(port->dev, "failed to refill BM pools\n"); + goto err_drop_frame; + } + + ps.rx_packets++; + ps.rx_bytes += rx_bytes; + continue; + } + } + + skb = build_skb(data, frag_size); + if (!skb) { + netdev_warn(port->dev, "skb build failed\n"); + goto err_drop_frame; + } + + /* If we have RX hardware timestamping enabled, grab the + * timestamp from the queue and convert. + */ + if (mvpp22_rx_hwtstamping(port)) { + timestamp = le32_to_cpu(rx_desc->pp22.timestamp); + mvpp22_tai_tstamp(port->priv->tai, timestamp, + skb_hwtstamps(skb)); + } + + err = mvpp2_rx_refill(port, bm_pool, pp, pool); + if (err) { + netdev_err(port->dev, "failed to refill BM pools\n"); + dev_kfree_skb_any(skb); + goto err_drop_frame; + } + + if (pp) + skb_mark_for_recycle(skb); + else + dma_unmap_single_attrs(dev->dev.parent, dma_addr, + bm_pool->buf_size, DMA_FROM_DEVICE, + DMA_ATTR_SKIP_CPU_SYNC); + + ps.rx_packets++; + ps.rx_bytes += rx_bytes; + + skb_reserve(skb, MVPP2_MH_SIZE + MVPP2_SKB_HEADROOM); + skb_put(skb, rx_bytes); + skb->ip_summed = mvpp2_rx_csum(port, rx_status); + skb->protocol = eth_type_trans(skb, dev); + + napi_gro_receive(napi, skb); + continue; + +err_drop_frame: + dev->stats.rx_errors++; + mvpp2_rx_error(port, rx_desc); + /* Return the buffer to the pool */ + if (rx_status & MVPP2_RXD_BUF_HDR) + mvpp2_buff_hdr_pool_put(port, rx_desc, pool, rx_status); + else + mvpp2_bm_pool_put(port, pool, dma_addr, phys_addr); + } + + if (xdp_ret & MVPP2_XDP_REDIR) + xdp_do_flush_map(); + + if (ps.rx_packets) { + struct mvpp2_pcpu_stats *stats = this_cpu_ptr(port->stats); + + u64_stats_update_begin(&stats->syncp); + stats->rx_packets += ps.rx_packets; + stats->rx_bytes += ps.rx_bytes; + /* xdp */ + stats->xdp_redirect += ps.xdp_redirect; + stats->xdp_pass += ps.xdp_pass; + stats->xdp_drop += ps.xdp_drop; + u64_stats_update_end(&stats->syncp); + } + + /* Update Rx queue management counters */ + wmb(); + mvpp2_rxq_status_update(port, rxq->id, rx_done, rx_done); + + return rx_todo; +} + +static inline void +tx_desc_unmap_put(struct mvpp2_port *port, struct mvpp2_tx_queue *txq, + struct mvpp2_tx_desc *desc) +{ + unsigned int thread = mvpp2_cpu_to_thread(port->priv, smp_processor_id()); + struct mvpp2_txq_pcpu *txq_pcpu = per_cpu_ptr(txq->pcpu, thread); + + dma_addr_t buf_dma_addr = + mvpp2_txdesc_dma_addr_get(port, desc); + size_t buf_sz = + mvpp2_txdesc_size_get(port, desc); + if (!IS_TSO_HEADER(txq_pcpu, buf_dma_addr)) + dma_unmap_single(port->dev->dev.parent, buf_dma_addr, + buf_sz, DMA_TO_DEVICE); + mvpp2_txq_desc_put(txq); +} + +static void mvpp2_txdesc_clear_ptp(struct mvpp2_port *port, + struct mvpp2_tx_desc *desc) +{ + /* We only need to clear the low bits */ + if (port->priv->hw_version >= MVPP22) + desc->pp22.ptp_descriptor &= + cpu_to_le32(~MVPP22_PTP_DESC_MASK_LOW); +} + +static bool mvpp2_tx_hw_tstamp(struct mvpp2_port *port, + struct mvpp2_tx_desc *tx_desc, + struct sk_buff *skb) +{ + struct mvpp2_hwtstamp_queue *queue; + unsigned int mtype, type, i; + struct ptp_header *hdr; + u64 ptpdesc; + + if (port->priv->hw_version == MVPP21 || + port->tx_hwtstamp_type == HWTSTAMP_TX_OFF) + return false; + + type = ptp_classify_raw(skb); + if (!type) + return false; + + hdr = ptp_parse_header(skb, type); + if (!hdr) + return false; + + skb_shinfo(skb)->tx_flags |= SKBTX_IN_PROGRESS; + + ptpdesc = MVPP22_PTP_MACTIMESTAMPINGEN | + MVPP22_PTP_ACTION_CAPTURE; + queue = &port->tx_hwtstamp_queue[0]; + + switch (type & PTP_CLASS_VMASK) { + case PTP_CLASS_V1: + ptpdesc |= MVPP22_PTP_PACKETFORMAT(MVPP22_PTP_PKT_FMT_PTPV1); + break; + + case PTP_CLASS_V2: + ptpdesc |= MVPP22_PTP_PACKETFORMAT(MVPP22_PTP_PKT_FMT_PTPV2); + mtype = hdr->tsmt & 15; + /* Direct PTP Sync messages to queue 1 */ + if (mtype == 0) { + ptpdesc |= MVPP22_PTP_TIMESTAMPQUEUESELECT; + queue = &port->tx_hwtstamp_queue[1]; + } + break; + } + + /* Take a reference on the skb and insert into our queue */ + i = queue->next; + queue->next = (i + 1) & 31; + if (queue->skb[i]) + dev_kfree_skb_any(queue->skb[i]); + queue->skb[i] = skb_get(skb); + + ptpdesc |= MVPP22_PTP_TIMESTAMPENTRYID(i); + + /* + * 3:0 - PTPAction + * 6:4 - PTPPacketFormat + * 7 - PTP_CF_WraparoundCheckEn + * 9:8 - IngressTimestampSeconds[1:0] + * 10 - Reserved + * 11 - MACTimestampingEn + * 17:12 - PTP_TimestampQueueEntryID[5:0] + * 18 - PTPTimestampQueueSelect + * 19 - UDPChecksumUpdateEn + * 27:20 - TimestampOffset + * PTP, NTPTransmit, OWAMP/TWAMP - L3 to PTP header + * NTPTs, Y.1731 - L3 to timestamp entry + * 35:28 - UDP Checksum Offset + * + * stored in tx descriptor bits 75:64 (11:0) and 191:168 (35:12) + */ + tx_desc->pp22.ptp_descriptor &= + cpu_to_le32(~MVPP22_PTP_DESC_MASK_LOW); + tx_desc->pp22.ptp_descriptor |= + cpu_to_le32(ptpdesc & MVPP22_PTP_DESC_MASK_LOW); + tx_desc->pp22.buf_dma_addr_ptp &= cpu_to_le64(~0xffffff0000000000ULL); + tx_desc->pp22.buf_dma_addr_ptp |= cpu_to_le64((ptpdesc >> 12) << 40); + + return true; +} + +/* Handle tx fragmentation processing */ +static int mvpp2_tx_frag_process(struct mvpp2_port *port, struct sk_buff *skb, + struct mvpp2_tx_queue *aggr_txq, + struct mvpp2_tx_queue *txq) +{ + unsigned int thread = mvpp2_cpu_to_thread(port->priv, smp_processor_id()); + struct mvpp2_txq_pcpu *txq_pcpu = per_cpu_ptr(txq->pcpu, thread); + struct mvpp2_tx_desc *tx_desc; + int i; + dma_addr_t buf_dma_addr; + + for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) { + skb_frag_t *frag = &skb_shinfo(skb)->frags[i]; + void *addr = skb_frag_address(frag); + + tx_desc = mvpp2_txq_next_desc_get(aggr_txq); + mvpp2_txdesc_clear_ptp(port, tx_desc); + mvpp2_txdesc_txq_set(port, tx_desc, txq->id); + mvpp2_txdesc_size_set(port, tx_desc, skb_frag_size(frag)); + + buf_dma_addr = dma_map_single(port->dev->dev.parent, addr, + skb_frag_size(frag), + DMA_TO_DEVICE); + if (dma_mapping_error(port->dev->dev.parent, buf_dma_addr)) { + mvpp2_txq_desc_put(txq); + goto cleanup; + } + + mvpp2_txdesc_dma_addr_set(port, tx_desc, buf_dma_addr); + + if (i == (skb_shinfo(skb)->nr_frags - 1)) { + /* Last descriptor */ + mvpp2_txdesc_cmd_set(port, tx_desc, + MVPP2_TXD_L_DESC); + mvpp2_txq_inc_put(port, txq_pcpu, skb, tx_desc, MVPP2_TYPE_SKB); + } else { + /* Descriptor in the middle: Not First, Not Last */ + mvpp2_txdesc_cmd_set(port, tx_desc, 0); + mvpp2_txq_inc_put(port, txq_pcpu, NULL, tx_desc, MVPP2_TYPE_SKB); + } + } + + return 0; +cleanup: + /* Release all descriptors that were used to map fragments of + * this packet, as well as the corresponding DMA mappings + */ + for (i = i - 1; i >= 0; i--) { + tx_desc = txq->descs + i; + tx_desc_unmap_put(port, txq, tx_desc); + } + + return -ENOMEM; +} + +static inline void mvpp2_tso_put_hdr(struct sk_buff *skb, + struct net_device *dev, + struct mvpp2_tx_queue *txq, + struct mvpp2_tx_queue *aggr_txq, + struct mvpp2_txq_pcpu *txq_pcpu, + int hdr_sz) +{ + struct mvpp2_port *port = netdev_priv(dev); + struct mvpp2_tx_desc *tx_desc = mvpp2_txq_next_desc_get(aggr_txq); + dma_addr_t addr; + + mvpp2_txdesc_clear_ptp(port, tx_desc); + mvpp2_txdesc_txq_set(port, tx_desc, txq->id); + mvpp2_txdesc_size_set(port, tx_desc, hdr_sz); + + addr = txq_pcpu->tso_headers_dma + + txq_pcpu->txq_put_index * TSO_HEADER_SIZE; + mvpp2_txdesc_dma_addr_set(port, tx_desc, addr); + + mvpp2_txdesc_cmd_set(port, tx_desc, mvpp2_skb_tx_csum(port, skb) | + MVPP2_TXD_F_DESC | + MVPP2_TXD_PADDING_DISABLE); + mvpp2_txq_inc_put(port, txq_pcpu, NULL, tx_desc, MVPP2_TYPE_SKB); +} + +static inline int mvpp2_tso_put_data(struct sk_buff *skb, + struct net_device *dev, struct tso_t *tso, + struct mvpp2_tx_queue *txq, + struct mvpp2_tx_queue *aggr_txq, + struct mvpp2_txq_pcpu *txq_pcpu, + int sz, bool left, bool last) +{ + struct mvpp2_port *port = netdev_priv(dev); + struct mvpp2_tx_desc *tx_desc = mvpp2_txq_next_desc_get(aggr_txq); + dma_addr_t buf_dma_addr; + + mvpp2_txdesc_clear_ptp(port, tx_desc); + mvpp2_txdesc_txq_set(port, tx_desc, txq->id); + mvpp2_txdesc_size_set(port, tx_desc, sz); + + buf_dma_addr = dma_map_single(dev->dev.parent, tso->data, sz, + DMA_TO_DEVICE); + if (unlikely(dma_mapping_error(dev->dev.parent, buf_dma_addr))) { + mvpp2_txq_desc_put(txq); + return -ENOMEM; + } + + mvpp2_txdesc_dma_addr_set(port, tx_desc, buf_dma_addr); + + if (!left) { + mvpp2_txdesc_cmd_set(port, tx_desc, MVPP2_TXD_L_DESC); + if (last) { + mvpp2_txq_inc_put(port, txq_pcpu, skb, tx_desc, MVPP2_TYPE_SKB); + return 0; + } + } else { + mvpp2_txdesc_cmd_set(port, tx_desc, 0); + } + + mvpp2_txq_inc_put(port, txq_pcpu, NULL, tx_desc, MVPP2_TYPE_SKB); + return 0; +} + +static int mvpp2_tx_tso(struct sk_buff *skb, struct net_device *dev, + struct mvpp2_tx_queue *txq, + struct mvpp2_tx_queue *aggr_txq, + struct mvpp2_txq_pcpu *txq_pcpu) +{ + struct mvpp2_port *port = netdev_priv(dev); + int hdr_sz, i, len, descs = 0; + struct tso_t tso; + + /* Check number of available descriptors */ + if (mvpp2_aggr_desc_num_check(port, aggr_txq, tso_count_descs(skb)) || + mvpp2_txq_reserved_desc_num_proc(port, txq, txq_pcpu, + tso_count_descs(skb))) + return 0; + + hdr_sz = tso_start(skb, &tso); + + len = skb->len - hdr_sz; + while (len > 0) { + int left = min_t(int, skb_shinfo(skb)->gso_size, len); + char *hdr = txq_pcpu->tso_headers + + txq_pcpu->txq_put_index * TSO_HEADER_SIZE; + + len -= left; + descs++; + + tso_build_hdr(skb, hdr, &tso, left, len == 0); + mvpp2_tso_put_hdr(skb, dev, txq, aggr_txq, txq_pcpu, hdr_sz); + + while (left > 0) { + int sz = min_t(int, tso.size, left); + left -= sz; + descs++; + + if (mvpp2_tso_put_data(skb, dev, &tso, txq, aggr_txq, + txq_pcpu, sz, left, len == 0)) + goto release; + tso_build_data(skb, &tso, sz); + } + } + + return descs; + +release: + for (i = descs - 1; i >= 0; i--) { + struct mvpp2_tx_desc *tx_desc = txq->descs + i; + tx_desc_unmap_put(port, txq, tx_desc); + } + return 0; +} + +/* Main tx processing */ +static netdev_tx_t mvpp2_tx(struct sk_buff *skb, struct net_device *dev) +{ + struct mvpp2_port *port = netdev_priv(dev); + struct mvpp2_tx_queue *txq, *aggr_txq; + struct mvpp2_txq_pcpu *txq_pcpu; + struct mvpp2_tx_desc *tx_desc; + dma_addr_t buf_dma_addr; + unsigned long flags = 0; + unsigned int thread; + int frags = 0; + u16 txq_id; + u32 tx_cmd; + + thread = mvpp2_cpu_to_thread(port->priv, smp_processor_id()); + + txq_id = skb_get_queue_mapping(skb); + txq = port->txqs[txq_id]; + txq_pcpu = per_cpu_ptr(txq->pcpu, thread); + aggr_txq = &port->priv->aggr_txqs[thread]; + + if (test_bit(thread, &port->priv->lock_map)) + spin_lock_irqsave(&port->tx_lock[thread], flags); + + if (skb_is_gso(skb)) { + frags = mvpp2_tx_tso(skb, dev, txq, aggr_txq, txq_pcpu); + goto out; + } + frags = skb_shinfo(skb)->nr_frags + 1; + + /* Check number of available descriptors */ + if (mvpp2_aggr_desc_num_check(port, aggr_txq, frags) || + mvpp2_txq_reserved_desc_num_proc(port, txq, txq_pcpu, frags)) { + frags = 0; + goto out; + } + + /* Get a descriptor for the first part of the packet */ + tx_desc = mvpp2_txq_next_desc_get(aggr_txq); + if (!(skb_shinfo(skb)->tx_flags & SKBTX_HW_TSTAMP) || + !mvpp2_tx_hw_tstamp(port, tx_desc, skb)) + mvpp2_txdesc_clear_ptp(port, tx_desc); + mvpp2_txdesc_txq_set(port, tx_desc, txq->id); + mvpp2_txdesc_size_set(port, tx_desc, skb_headlen(skb)); + + buf_dma_addr = dma_map_single(dev->dev.parent, skb->data, + skb_headlen(skb), DMA_TO_DEVICE); + if (unlikely(dma_mapping_error(dev->dev.parent, buf_dma_addr))) { + mvpp2_txq_desc_put(txq); + frags = 0; + goto out; + } + + mvpp2_txdesc_dma_addr_set(port, tx_desc, buf_dma_addr); + + tx_cmd = mvpp2_skb_tx_csum(port, skb); + + if (frags == 1) { + /* First and Last descriptor */ + tx_cmd |= MVPP2_TXD_F_DESC | MVPP2_TXD_L_DESC; + mvpp2_txdesc_cmd_set(port, tx_desc, tx_cmd); + mvpp2_txq_inc_put(port, txq_pcpu, skb, tx_desc, MVPP2_TYPE_SKB); + } else { + /* First but not Last */ + tx_cmd |= MVPP2_TXD_F_DESC | MVPP2_TXD_PADDING_DISABLE; + mvpp2_txdesc_cmd_set(port, tx_desc, tx_cmd); + mvpp2_txq_inc_put(port, txq_pcpu, NULL, tx_desc, MVPP2_TYPE_SKB); + + /* Continue with other skb fragments */ + if (mvpp2_tx_frag_process(port, skb, aggr_txq, txq)) { + tx_desc_unmap_put(port, txq, tx_desc); + frags = 0; + } + } + +out: + if (frags > 0) { + struct mvpp2_pcpu_stats *stats = per_cpu_ptr(port->stats, thread); + struct netdev_queue *nq = netdev_get_tx_queue(dev, txq_id); + + txq_pcpu->reserved_num -= frags; + txq_pcpu->count += frags; + aggr_txq->count += frags; + + /* Enable transmit */ + wmb(); + mvpp2_aggr_txq_pend_desc_add(port, frags); + + if (txq_pcpu->count >= txq_pcpu->stop_threshold) + netif_tx_stop_queue(nq); + + u64_stats_update_begin(&stats->syncp); + stats->tx_packets++; + stats->tx_bytes += skb->len; + u64_stats_update_end(&stats->syncp); + } else { + dev->stats.tx_dropped++; + dev_kfree_skb_any(skb); + } + + /* Finalize TX processing */ + if (!port->has_tx_irqs && txq_pcpu->count >= txq->done_pkts_coal) + mvpp2_txq_done(port, txq, txq_pcpu); + + /* Set the timer in case not all frags were processed */ + if (!port->has_tx_irqs && txq_pcpu->count <= frags && + txq_pcpu->count > 0) { + struct mvpp2_port_pcpu *port_pcpu = per_cpu_ptr(port->pcpu, thread); + + if (!port_pcpu->timer_scheduled) { + port_pcpu->timer_scheduled = true; + hrtimer_start(&port_pcpu->tx_done_timer, + MVPP2_TXDONE_HRTIMER_PERIOD_NS, + HRTIMER_MODE_REL_PINNED_SOFT); + } + } + + if (test_bit(thread, &port->priv->lock_map)) + spin_unlock_irqrestore(&port->tx_lock[thread], flags); + + return NETDEV_TX_OK; +} + +static inline void mvpp2_cause_error(struct net_device *dev, int cause) +{ + if (cause & MVPP2_CAUSE_FCS_ERR_MASK) + netdev_err(dev, "FCS error\n"); + if (cause & MVPP2_CAUSE_RX_FIFO_OVERRUN_MASK) + netdev_err(dev, "rx fifo overrun error\n"); + if (cause & MVPP2_CAUSE_TX_FIFO_UNDERRUN_MASK) + netdev_err(dev, "tx fifo underrun error\n"); +} + +static int mvpp2_poll(struct napi_struct *napi, int budget) +{ + u32 cause_rx_tx, cause_rx, cause_tx, cause_misc; + int rx_done = 0; + struct mvpp2_port *port = netdev_priv(napi->dev); + struct mvpp2_queue_vector *qv; + unsigned int thread = mvpp2_cpu_to_thread(port->priv, smp_processor_id()); + + qv = container_of(napi, struct mvpp2_queue_vector, napi); + + /* Rx/Tx cause register + * + * Bits 0-15: each bit indicates received packets on the Rx queue + * (bit 0 is for Rx queue 0). + * + * Bits 16-23: each bit indicates transmitted packets on the Tx queue + * (bit 16 is for Tx queue 0). + * + * Each CPU has its own Rx/Tx cause register + */ + cause_rx_tx = mvpp2_thread_read_relaxed(port->priv, qv->sw_thread_id, + MVPP2_ISR_RX_TX_CAUSE_REG(port->id)); + + cause_misc = cause_rx_tx & MVPP2_CAUSE_MISC_SUM_MASK; + if (cause_misc) { + mvpp2_cause_error(port->dev, cause_misc); + + /* Clear the cause register */ + mvpp2_write(port->priv, MVPP2_ISR_MISC_CAUSE_REG, 0); + mvpp2_thread_write(port->priv, thread, + MVPP2_ISR_RX_TX_CAUSE_REG(port->id), + cause_rx_tx & ~MVPP2_CAUSE_MISC_SUM_MASK); + } + + if (port->has_tx_irqs) { + cause_tx = cause_rx_tx & MVPP2_CAUSE_TXQ_OCCUP_DESC_ALL_MASK; + if (cause_tx) { + cause_tx >>= MVPP2_CAUSE_TXQ_OCCUP_DESC_ALL_OFFSET; + mvpp2_tx_done(port, cause_tx, qv->sw_thread_id); + } + } + + /* Process RX packets */ + cause_rx = cause_rx_tx & + MVPP2_CAUSE_RXQ_OCCUP_DESC_ALL_MASK(port->priv->hw_version); + cause_rx <<= qv->first_rxq; + cause_rx |= qv->pending_cause_rx; + while (cause_rx && budget > 0) { + int count; + struct mvpp2_rx_queue *rxq; + + rxq = mvpp2_get_rx_queue(port, cause_rx); + if (!rxq) + break; + + count = mvpp2_rx(port, napi, budget, rxq); + rx_done += count; + budget -= count; + if (budget > 0) { + /* Clear the bit associated to this Rx queue + * so that next iteration will continue from + * the next Rx queue. + */ + cause_rx &= ~(1 << rxq->logic_rxq); + } + } + + if (budget > 0) { + cause_rx = 0; + napi_complete_done(napi, rx_done); + + mvpp2_qvec_interrupt_enable(qv); + } + qv->pending_cause_rx = cause_rx; + return rx_done; +} + +static void mvpp22_mode_reconfigure(struct mvpp2_port *port, + phy_interface_t interface) +{ + u32 ctrl3; + + /* Set the GMAC & XLG MAC in reset */ + mvpp2_mac_reset_assert(port); + + /* Set the MPCS and XPCS in reset */ + mvpp22_pcs_reset_assert(port); + + /* comphy reconfiguration */ + mvpp22_comphy_init(port, interface); + + /* gop reconfiguration */ + mvpp22_gop_init(port, interface); + + mvpp22_pcs_reset_deassert(port, interface); + + if (mvpp2_port_supports_xlg(port)) { + ctrl3 = readl(port->base + MVPP22_XLG_CTRL3_REG); + ctrl3 &= ~MVPP22_XLG_CTRL3_MACMODESELECT_MASK; + + if (mvpp2_is_xlg(interface)) + ctrl3 |= MVPP22_XLG_CTRL3_MACMODESELECT_10G; + else + ctrl3 |= MVPP22_XLG_CTRL3_MACMODESELECT_GMAC; + + writel(ctrl3, port->base + MVPP22_XLG_CTRL3_REG); + } + + if (mvpp2_port_supports_xlg(port) && mvpp2_is_xlg(interface)) + mvpp2_xlg_max_rx_size_set(port); + else + mvpp2_gmac_max_rx_size_set(port); +} + +/* Set hw internals when starting port */ +static void mvpp2_start_dev(struct mvpp2_port *port) +{ + int i; + + mvpp2_txp_max_tx_size_set(port); + + for (i = 0; i < port->nqvecs; i++) + napi_enable(&port->qvecs[i].napi); + + /* Enable interrupts on all threads */ + mvpp2_interrupts_enable(port); + + if (port->priv->hw_version >= MVPP22) + mvpp22_mode_reconfigure(port, port->phy_interface); + + if (port->phylink) { + phylink_start(port->phylink); + } else { + mvpp2_acpi_start(port); + } + + netif_tx_start_all_queues(port->dev); + + clear_bit(0, &port->state); +} + +/* Set hw internals when stopping port */ +static void mvpp2_stop_dev(struct mvpp2_port *port) +{ + int i; + + set_bit(0, &port->state); + + /* Disable interrupts on all threads */ + mvpp2_interrupts_disable(port); + + for (i = 0; i < port->nqvecs; i++) + napi_disable(&port->qvecs[i].napi); + + if (port->phylink) + phylink_stop(port->phylink); + phy_power_off(port->comphy); +} + +static int mvpp2_check_ringparam_valid(struct net_device *dev, + struct ethtool_ringparam *ring) +{ + u16 new_rx_pending = ring->rx_pending; + u16 new_tx_pending = ring->tx_pending; + + if (ring->rx_pending == 0 || ring->tx_pending == 0) + return -EINVAL; + + if (ring->rx_pending > MVPP2_MAX_RXD_MAX) + new_rx_pending = MVPP2_MAX_RXD_MAX; + else if (ring->rx_pending < MSS_THRESHOLD_START) + new_rx_pending = MSS_THRESHOLD_START; + else if (!IS_ALIGNED(ring->rx_pending, 16)) + new_rx_pending = ALIGN(ring->rx_pending, 16); + + if (ring->tx_pending > MVPP2_MAX_TXD_MAX) + new_tx_pending = MVPP2_MAX_TXD_MAX; + else if (!IS_ALIGNED(ring->tx_pending, 32)) + new_tx_pending = ALIGN(ring->tx_pending, 32); + + /* The Tx ring size cannot be smaller than the minimum number of + * descriptors needed for TSO. + */ + if (new_tx_pending < MVPP2_MAX_SKB_DESCS) + new_tx_pending = ALIGN(MVPP2_MAX_SKB_DESCS, 32); + + if (ring->rx_pending != new_rx_pending) { + netdev_info(dev, "illegal Rx ring size value %d, round to %d\n", + ring->rx_pending, new_rx_pending); + ring->rx_pending = new_rx_pending; + } + + if (ring->tx_pending != new_tx_pending) { + netdev_info(dev, "illegal Tx ring size value %d, round to %d\n", + ring->tx_pending, new_tx_pending); + ring->tx_pending = new_tx_pending; + } + + return 0; +} + +static void mvpp21_get_mac_address(struct mvpp2_port *port, unsigned char *addr) +{ + u32 mac_addr_l, mac_addr_m, mac_addr_h; + + mac_addr_l = readl(port->base + MVPP2_GMAC_CTRL_1_REG); + mac_addr_m = readl(port->priv->lms_base + MVPP2_SRC_ADDR_MIDDLE); + mac_addr_h = readl(port->priv->lms_base + MVPP2_SRC_ADDR_HIGH); + addr[0] = (mac_addr_h >> 24) & 0xFF; + addr[1] = (mac_addr_h >> 16) & 0xFF; + addr[2] = (mac_addr_h >> 8) & 0xFF; + addr[3] = mac_addr_h & 0xFF; + addr[4] = mac_addr_m & 0xFF; + addr[5] = (mac_addr_l >> MVPP2_GMAC_SA_LOW_OFFS) & 0xFF; +} + +static int mvpp2_irqs_init(struct mvpp2_port *port) +{ + int err, i; + + for (i = 0; i < port->nqvecs; i++) { + struct mvpp2_queue_vector *qv = port->qvecs + i; + + if (qv->type == MVPP2_QUEUE_VECTOR_PRIVATE) { + qv->mask = kzalloc(cpumask_size(), GFP_KERNEL); + if (!qv->mask) { + err = -ENOMEM; + goto err; + } + + irq_set_status_flags(qv->irq, IRQ_NO_BALANCING); + } + + err = request_irq(qv->irq, mvpp2_isr, 0, port->dev->name, qv); + if (err) + goto err; + + if (qv->type == MVPP2_QUEUE_VECTOR_PRIVATE) { + unsigned int cpu; + + for_each_present_cpu(cpu) { + if (mvpp2_cpu_to_thread(port->priv, cpu) == + qv->sw_thread_id) + cpumask_set_cpu(cpu, qv->mask); + } + + irq_set_affinity_hint(qv->irq, qv->mask); + } + } + + return 0; +err: + for (i = 0; i < port->nqvecs; i++) { + struct mvpp2_queue_vector *qv = port->qvecs + i; + + irq_set_affinity_hint(qv->irq, NULL); + kfree(qv->mask); + qv->mask = NULL; + free_irq(qv->irq, qv); + } + + return err; +} + +static void mvpp2_irqs_deinit(struct mvpp2_port *port) +{ + int i; + + for (i = 0; i < port->nqvecs; i++) { + struct mvpp2_queue_vector *qv = port->qvecs + i; + + irq_set_affinity_hint(qv->irq, NULL); + kfree(qv->mask); + qv->mask = NULL; + irq_clear_status_flags(qv->irq, IRQ_NO_BALANCING); + free_irq(qv->irq, qv); + } +} + +static bool mvpp22_rss_is_supported(struct mvpp2_port *port) +{ + return (queue_mode == MVPP2_QDIST_MULTI_MODE) && + !(port->flags & MVPP2_F_LOOPBACK); +} + +static int mvpp2_open(struct net_device *dev) +{ + struct mvpp2_port *port = netdev_priv(dev); + struct mvpp2 *priv = port->priv; + unsigned char mac_bcast[ETH_ALEN] = { + 0xff, 0xff, 0xff, 0xff, 0xff, 0xff }; + bool valid = false; + int err; + + err = mvpp2_prs_mac_da_accept(port, mac_bcast, true); + if (err) { + netdev_err(dev, "mvpp2_prs_mac_da_accept BC failed\n"); + return err; + } + err = mvpp2_prs_mac_da_accept(port, dev->dev_addr, true); + if (err) { + netdev_err(dev, "mvpp2_prs_mac_da_accept own addr failed\n"); + return err; + } + err = mvpp2_prs_tag_mode_set(port->priv, port->id, MVPP2_TAG_TYPE_MH); + if (err) { + netdev_err(dev, "mvpp2_prs_tag_mode_set failed\n"); + return err; + } + err = mvpp2_prs_def_flow(port); + if (err) { + netdev_err(dev, "mvpp2_prs_def_flow failed\n"); + return err; + } + + /* Allocate the Rx/Tx queues */ + err = mvpp2_setup_rxqs(port); + if (err) { + netdev_err(port->dev, "cannot allocate Rx queues\n"); + return err; + } + + err = mvpp2_setup_txqs(port); + if (err) { + netdev_err(port->dev, "cannot allocate Tx queues\n"); + goto err_cleanup_rxqs; + } + + err = mvpp2_irqs_init(port); + if (err) { + netdev_err(port->dev, "cannot init IRQs\n"); + goto err_cleanup_txqs; + } + + if (port->phylink) { + err = phylink_fwnode_phy_connect(port->phylink, port->fwnode, 0); + if (err) { + netdev_err(port->dev, "could not attach PHY (%d)\n", + err); + goto err_free_irq; + } + + valid = true; + } + + if (priv->hw_version >= MVPP22 && port->port_irq) { + err = request_irq(port->port_irq, mvpp2_port_isr, 0, + dev->name, port); + if (err) { + netdev_err(port->dev, + "cannot request port link/ptp IRQ %d\n", + port->port_irq); + goto err_free_irq; + } + + mvpp22_gop_setup_irq(port); + + /* In default link is down */ + netif_carrier_off(port->dev); + + valid = true; + } else { + port->port_irq = 0; + } + + if (!valid) { + netdev_err(port->dev, + "invalid configuration: no dt or link IRQ"); + err = -ENOENT; + goto err_free_irq; + } + + /* Unmask interrupts on all CPUs */ + on_each_cpu(mvpp2_interrupts_unmask, port, 1); + mvpp2_shared_interrupt_mask_unmask(port, false); + + mvpp2_start_dev(port); + + /* Start hardware statistics gathering */ + queue_delayed_work(priv->stats_queue, &port->stats_work, + MVPP2_MIB_COUNTERS_STATS_DELAY); + + return 0; + +err_free_irq: + mvpp2_irqs_deinit(port); +err_cleanup_txqs: + mvpp2_cleanup_txqs(port); +err_cleanup_rxqs: + mvpp2_cleanup_rxqs(port); + return err; +} + +static int mvpp2_stop(struct net_device *dev) +{ + struct mvpp2_port *port = netdev_priv(dev); + struct mvpp2_port_pcpu *port_pcpu; + unsigned int thread; + + mvpp2_stop_dev(port); + + /* Mask interrupts on all threads */ + on_each_cpu(mvpp2_interrupts_mask, port, 1); + mvpp2_shared_interrupt_mask_unmask(port, true); + + if (port->phylink) + phylink_disconnect_phy(port->phylink); + if (port->port_irq) + free_irq(port->port_irq, port); + + mvpp2_irqs_deinit(port); + if (!port->has_tx_irqs) { + for (thread = 0; thread < port->priv->nthreads; thread++) { + port_pcpu = per_cpu_ptr(port->pcpu, thread); + + hrtimer_cancel(&port_pcpu->tx_done_timer); + port_pcpu->timer_scheduled = false; + } + } + mvpp2_cleanup_rxqs(port); + mvpp2_cleanup_txqs(port); + + cancel_delayed_work_sync(&port->stats_work); + + mvpp2_mac_reset_assert(port); + mvpp22_pcs_reset_assert(port); + + return 0; +} + +static int mvpp2_prs_mac_da_accept_list(struct mvpp2_port *port, + struct netdev_hw_addr_list *list) +{ + struct netdev_hw_addr *ha; + int ret; + + netdev_hw_addr_list_for_each(ha, list) { + ret = mvpp2_prs_mac_da_accept(port, ha->addr, true); + if (ret) + return ret; + } + + return 0; +} + +static void mvpp2_set_rx_promisc(struct mvpp2_port *port, bool enable) +{ + if (!enable && (port->dev->features & NETIF_F_HW_VLAN_CTAG_FILTER)) + mvpp2_prs_vid_enable_filtering(port); + else + mvpp2_prs_vid_disable_filtering(port); + + mvpp2_prs_mac_promisc_set(port->priv, port->id, + MVPP2_PRS_L2_UNI_CAST, enable); + + mvpp2_prs_mac_promisc_set(port->priv, port->id, + MVPP2_PRS_L2_MULTI_CAST, enable); +} + +static void mvpp2_set_rx_mode(struct net_device *dev) +{ + struct mvpp2_port *port = netdev_priv(dev); + + /* Clear the whole UC and MC list */ + mvpp2_prs_mac_del_all(port); + + if (dev->flags & IFF_PROMISC) { + mvpp2_set_rx_promisc(port, true); + return; + } + + mvpp2_set_rx_promisc(port, false); + + if (netdev_uc_count(dev) > MVPP2_PRS_MAC_UC_FILT_MAX || + mvpp2_prs_mac_da_accept_list(port, &dev->uc)) + mvpp2_prs_mac_promisc_set(port->priv, port->id, + MVPP2_PRS_L2_UNI_CAST, true); + + if (dev->flags & IFF_ALLMULTI) { + mvpp2_prs_mac_promisc_set(port->priv, port->id, + MVPP2_PRS_L2_MULTI_CAST, true); + return; + } + + if (netdev_mc_count(dev) > MVPP2_PRS_MAC_MC_FILT_MAX || + mvpp2_prs_mac_da_accept_list(port, &dev->mc)) + mvpp2_prs_mac_promisc_set(port->priv, port->id, + MVPP2_PRS_L2_MULTI_CAST, true); +} + +static int mvpp2_set_mac_address(struct net_device *dev, void *p) +{ + const struct sockaddr *addr = p; + int err; + + if (!is_valid_ether_addr(addr->sa_data)) + return -EADDRNOTAVAIL; + + err = mvpp2_prs_update_mac_da(dev, addr->sa_data); + if (err) { + /* Reconfigure parser accept the original MAC address */ + mvpp2_prs_update_mac_da(dev, dev->dev_addr); + netdev_err(dev, "failed to change MAC address\n"); + } + return err; +} + +/* Shut down all the ports, reconfigure the pools as percpu or shared, + * then bring up again all ports. + */ +static int mvpp2_bm_switch_buffers(struct mvpp2 *priv, bool percpu) +{ + bool change_percpu = (percpu != priv->percpu_pools); + int numbufs = MVPP2_BM_POOLS_NUM, i; + struct mvpp2_port *port = NULL; + bool status[MVPP2_MAX_PORTS]; + + for (i = 0; i < priv->port_count; i++) { + port = priv->port_list[i]; + status[i] = netif_running(port->dev); + if (status[i]) + mvpp2_stop(port->dev); + } + + /* nrxqs is the same for all ports */ + if (priv->percpu_pools) + numbufs = port->nrxqs * 2; + + if (change_percpu) + mvpp2_bm_pool_update_priv_fc(priv, false); + + for (i = 0; i < numbufs; i++) + mvpp2_bm_pool_destroy(port->dev->dev.parent, priv, &priv->bm_pools[i]); + + devm_kfree(port->dev->dev.parent, priv->bm_pools); + priv->percpu_pools = percpu; + mvpp2_bm_init(port->dev->dev.parent, priv); + + for (i = 0; i < priv->port_count; i++) { + port = priv->port_list[i]; + mvpp2_swf_bm_pool_init(port); + if (status[i]) + mvpp2_open(port->dev); + } + + if (change_percpu) + mvpp2_bm_pool_update_priv_fc(priv, true); + + return 0; +} + +static int mvpp2_change_mtu(struct net_device *dev, int mtu) +{ + struct mvpp2_port *port = netdev_priv(dev); + bool running = netif_running(dev); + struct mvpp2 *priv = port->priv; + int err; + + if (!IS_ALIGNED(MVPP2_RX_PKT_SIZE(mtu), 8)) { + netdev_info(dev, "illegal MTU value %d, round to %d\n", mtu, + ALIGN(MVPP2_RX_PKT_SIZE(mtu), 8)); + mtu = ALIGN(MVPP2_RX_PKT_SIZE(mtu), 8); + } + + if (port->xdp_prog && mtu > MVPP2_MAX_RX_BUF_SIZE) { + netdev_err(dev, "Illegal MTU value %d (> %d) for XDP mode\n", + mtu, (int)MVPP2_MAX_RX_BUF_SIZE); + return -EINVAL; + } + + if (MVPP2_RX_PKT_SIZE(mtu) > MVPP2_BM_LONG_PKT_SIZE) { + if (priv->percpu_pools) { + netdev_warn(dev, "mtu %d too high, switching to shared buffers", mtu); + mvpp2_bm_switch_buffers(priv, false); + } + } else { + bool jumbo = false; + int i; + + for (i = 0; i < priv->port_count; i++) + if (priv->port_list[i] != port && + MVPP2_RX_PKT_SIZE(priv->port_list[i]->dev->mtu) > + MVPP2_BM_LONG_PKT_SIZE) { + jumbo = true; + break; + } + + /* No port is using jumbo frames */ + if (!jumbo) { + dev_info(port->dev->dev.parent, + "all ports have a low MTU, switching to per-cpu buffers"); + mvpp2_bm_switch_buffers(priv, true); + } + } + + if (running) + mvpp2_stop_dev(port); + + err = mvpp2_bm_update_mtu(dev, mtu); + if (err) { + netdev_err(dev, "failed to change MTU\n"); + /* Reconfigure BM to the original MTU */ + mvpp2_bm_update_mtu(dev, dev->mtu); + } else { + port->pkt_size = MVPP2_RX_PKT_SIZE(mtu); + } + + if (running) { + mvpp2_start_dev(port); + mvpp2_egress_enable(port); + mvpp2_ingress_enable(port); + } + + return err; +} + +static int mvpp2_check_pagepool_dma(struct mvpp2_port *port) +{ + enum dma_data_direction dma_dir = DMA_FROM_DEVICE; + struct mvpp2 *priv = port->priv; + int err = -1, i; + + if (!priv->percpu_pools) + return err; + + if (!priv->page_pool[0]) + return -ENOMEM; + + for (i = 0; i < priv->port_count; i++) { + port = priv->port_list[i]; + if (port->xdp_prog) { + dma_dir = DMA_BIDIRECTIONAL; + break; + } + } + + /* All pools are equal in terms of DMA direction */ + if (priv->page_pool[0]->p.dma_dir != dma_dir) + err = mvpp2_bm_switch_buffers(priv, true); + + return err; +} + +static void +mvpp2_get_stats64(struct net_device *dev, struct rtnl_link_stats64 *stats) +{ + struct mvpp2_port *port = netdev_priv(dev); + unsigned int start; + unsigned int cpu; + + for_each_possible_cpu(cpu) { + struct mvpp2_pcpu_stats *cpu_stats; + u64 rx_packets; + u64 rx_bytes; + u64 tx_packets; + u64 tx_bytes; + + cpu_stats = per_cpu_ptr(port->stats, cpu); + do { + start = u64_stats_fetch_begin_irq(&cpu_stats->syncp); + rx_packets = cpu_stats->rx_packets; + rx_bytes = cpu_stats->rx_bytes; + tx_packets = cpu_stats->tx_packets; + tx_bytes = cpu_stats->tx_bytes; + } while (u64_stats_fetch_retry_irq(&cpu_stats->syncp, start)); + + stats->rx_packets += rx_packets; + stats->rx_bytes += rx_bytes; + stats->tx_packets += tx_packets; + stats->tx_bytes += tx_bytes; + } + + stats->rx_errors = dev->stats.rx_errors; + stats->rx_dropped = dev->stats.rx_dropped; + stats->tx_dropped = dev->stats.tx_dropped; +} + +static int mvpp2_set_ts_config(struct mvpp2_port *port, struct ifreq *ifr) +{ + struct hwtstamp_config config; + void __iomem *ptp; + u32 gcr, int_mask; + + if (copy_from_user(&config, ifr->ifr_data, sizeof(config))) + return -EFAULT; + + if (config.tx_type != HWTSTAMP_TX_OFF && + config.tx_type != HWTSTAMP_TX_ON) + return -ERANGE; + + ptp = port->priv->iface_base + MVPP22_PTP_BASE(port->gop_id); + + int_mask = gcr = 0; + if (config.tx_type != HWTSTAMP_TX_OFF) { + gcr |= MVPP22_PTP_GCR_TSU_ENABLE | MVPP22_PTP_GCR_TX_RESET; + int_mask |= MVPP22_PTP_INT_MASK_QUEUE1 | + MVPP22_PTP_INT_MASK_QUEUE0; + } + + /* It seems we must also release the TX reset when enabling the TSU */ + if (config.rx_filter != HWTSTAMP_FILTER_NONE) + gcr |= MVPP22_PTP_GCR_TSU_ENABLE | MVPP22_PTP_GCR_RX_RESET | + MVPP22_PTP_GCR_TX_RESET; + + if (gcr & MVPP22_PTP_GCR_TSU_ENABLE) + mvpp22_tai_start(port->priv->tai); + + if (config.rx_filter != HWTSTAMP_FILTER_NONE) { + config.rx_filter = HWTSTAMP_FILTER_ALL; + mvpp2_modify(ptp + MVPP22_PTP_GCR, + MVPP22_PTP_GCR_RX_RESET | + MVPP22_PTP_GCR_TX_RESET | + MVPP22_PTP_GCR_TSU_ENABLE, gcr); + port->rx_hwtstamp = true; + } else { + port->rx_hwtstamp = false; + mvpp2_modify(ptp + MVPP22_PTP_GCR, + MVPP22_PTP_GCR_RX_RESET | + MVPP22_PTP_GCR_TX_RESET | + MVPP22_PTP_GCR_TSU_ENABLE, gcr); + } + + mvpp2_modify(ptp + MVPP22_PTP_INT_MASK, + MVPP22_PTP_INT_MASK_QUEUE1 | + MVPP22_PTP_INT_MASK_QUEUE0, int_mask); + + if (!(gcr & MVPP22_PTP_GCR_TSU_ENABLE)) + mvpp22_tai_stop(port->priv->tai); + + port->tx_hwtstamp_type = config.tx_type; + + if (copy_to_user(ifr->ifr_data, &config, sizeof(config))) + return -EFAULT; + + return 0; +} + +static int mvpp2_get_ts_config(struct mvpp2_port *port, struct ifreq *ifr) +{ + struct hwtstamp_config config; + + memset(&config, 0, sizeof(config)); + + config.tx_type = port->tx_hwtstamp_type; + config.rx_filter = port->rx_hwtstamp ? + HWTSTAMP_FILTER_ALL : HWTSTAMP_FILTER_NONE; + + if (copy_to_user(ifr->ifr_data, &config, sizeof(config))) + return -EFAULT; + + return 0; +} + +static int mvpp2_ethtool_get_ts_info(struct net_device *dev, + struct ethtool_ts_info *info) +{ + struct mvpp2_port *port = netdev_priv(dev); + + if (!port->hwtstamp) + return -EOPNOTSUPP; + + info->phc_index = mvpp22_tai_ptp_clock_index(port->priv->tai); + info->so_timestamping = SOF_TIMESTAMPING_TX_SOFTWARE | + SOF_TIMESTAMPING_RX_SOFTWARE | + SOF_TIMESTAMPING_SOFTWARE | + SOF_TIMESTAMPING_TX_HARDWARE | + SOF_TIMESTAMPING_RX_HARDWARE | + SOF_TIMESTAMPING_RAW_HARDWARE; + info->tx_types = BIT(HWTSTAMP_TX_OFF) | + BIT(HWTSTAMP_TX_ON); + info->rx_filters = BIT(HWTSTAMP_FILTER_NONE) | + BIT(HWTSTAMP_FILTER_ALL); + + return 0; +} + +static int mvpp2_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) +{ + struct mvpp2_port *port = netdev_priv(dev); + + switch (cmd) { + case SIOCSHWTSTAMP: + if (port->hwtstamp) + return mvpp2_set_ts_config(port, ifr); + break; + + case SIOCGHWTSTAMP: + if (port->hwtstamp) + return mvpp2_get_ts_config(port, ifr); + break; + } + + if (!port->phylink) + return -ENOTSUPP; + + return phylink_mii_ioctl(port->phylink, ifr, cmd); +} + +static int mvpp2_vlan_rx_add_vid(struct net_device *dev, __be16 proto, u16 vid) +{ + struct mvpp2_port *port = netdev_priv(dev); + int ret; + + ret = mvpp2_prs_vid_entry_add(port, vid); + if (ret) + netdev_err(dev, "rx-vlan-filter offloading cannot accept more than %d VIDs per port\n", + MVPP2_PRS_VLAN_FILT_MAX - 1); + return ret; +} + +static int mvpp2_vlan_rx_kill_vid(struct net_device *dev, __be16 proto, u16 vid) +{ + struct mvpp2_port *port = netdev_priv(dev); + + mvpp2_prs_vid_entry_remove(port, vid); + return 0; +} + +static int mvpp2_set_features(struct net_device *dev, + netdev_features_t features) +{ + netdev_features_t changed = dev->features ^ features; + struct mvpp2_port *port = netdev_priv(dev); + + if (changed & NETIF_F_HW_VLAN_CTAG_FILTER) { + if (features & NETIF_F_HW_VLAN_CTAG_FILTER) { + mvpp2_prs_vid_enable_filtering(port); + } else { + /* Invalidate all registered VID filters for this + * port + */ + mvpp2_prs_vid_remove_all(port); + + mvpp2_prs_vid_disable_filtering(port); + } + } + + if (changed & NETIF_F_RXHASH) { + if (features & NETIF_F_RXHASH) + mvpp22_port_rss_enable(port); + else + mvpp22_port_rss_disable(port); + } + + return 0; +} + +static int mvpp2_xdp_setup(struct mvpp2_port *port, struct netdev_bpf *bpf) +{ + struct bpf_prog *prog = bpf->prog, *old_prog; + bool running = netif_running(port->dev); + bool reset = !prog != !port->xdp_prog; + + if (port->dev->mtu > MVPP2_MAX_RX_BUF_SIZE) { + NL_SET_ERR_MSG_MOD(bpf->extack, "MTU too large for XDP"); + return -EOPNOTSUPP; + } + + if (!port->priv->percpu_pools) { + NL_SET_ERR_MSG_MOD(bpf->extack, "Per CPU Pools required for XDP"); + return -EOPNOTSUPP; + } + + if (port->ntxqs < num_possible_cpus() * 2) { + NL_SET_ERR_MSG_MOD(bpf->extack, "XDP_TX needs two TX queues per CPU"); + return -EOPNOTSUPP; + } + + /* device is up and bpf is added/removed, must setup the RX queues */ + if (running && reset) + mvpp2_stop(port->dev); + + old_prog = xchg(&port->xdp_prog, prog); + if (old_prog) + bpf_prog_put(old_prog); + + /* bpf is just replaced, RXQ and MTU are already setup */ + if (!reset) + return 0; + + /* device was up, restore the link */ + if (running) + mvpp2_open(port->dev); + + /* Check Page Pool DMA Direction */ + mvpp2_check_pagepool_dma(port); + + return 0; +} + +static int mvpp2_xdp(struct net_device *dev, struct netdev_bpf *xdp) +{ + struct mvpp2_port *port = netdev_priv(dev); + + switch (xdp->command) { + case XDP_SETUP_PROG: + return mvpp2_xdp_setup(port, xdp); + default: + return -EINVAL; + } +} + +/* Ethtool methods */ + +static int mvpp2_ethtool_nway_reset(struct net_device *dev) +{ + struct mvpp2_port *port = netdev_priv(dev); + + if (!port->phylink) + return -ENOTSUPP; + + return phylink_ethtool_nway_reset(port->phylink); +} + +/* Set interrupt coalescing for ethtools */ +static int +mvpp2_ethtool_set_coalesce(struct net_device *dev, + struct ethtool_coalesce *c, + struct kernel_ethtool_coalesce *kernel_coal, + struct netlink_ext_ack *extack) +{ + struct mvpp2_port *port = netdev_priv(dev); + int queue; + + for (queue = 0; queue < port->nrxqs; queue++) { + struct mvpp2_rx_queue *rxq = port->rxqs[queue]; + + rxq->time_coal = c->rx_coalesce_usecs; + rxq->pkts_coal = c->rx_max_coalesced_frames; + mvpp2_rx_pkts_coal_set(port, rxq); + mvpp2_rx_time_coal_set(port, rxq); + } + + if (port->has_tx_irqs) { + port->tx_time_coal = c->tx_coalesce_usecs; + mvpp2_tx_time_coal_set(port); + } + + for (queue = 0; queue < port->ntxqs; queue++) { + struct mvpp2_tx_queue *txq = port->txqs[queue]; + + txq->done_pkts_coal = c->tx_max_coalesced_frames; + + if (port->has_tx_irqs) + mvpp2_tx_pkts_coal_set(port, txq); + } + + return 0; +} + +/* get coalescing for ethtools */ +static int +mvpp2_ethtool_get_coalesce(struct net_device *dev, + struct ethtool_coalesce *c, + struct kernel_ethtool_coalesce *kernel_coal, + struct netlink_ext_ack *extack) +{ + struct mvpp2_port *port = netdev_priv(dev); + + c->rx_coalesce_usecs = port->rxqs[0]->time_coal; + c->rx_max_coalesced_frames = port->rxqs[0]->pkts_coal; + c->tx_max_coalesced_frames = port->txqs[0]->done_pkts_coal; + c->tx_coalesce_usecs = port->tx_time_coal; + return 0; +} + +static void mvpp2_ethtool_get_drvinfo(struct net_device *dev, + struct ethtool_drvinfo *drvinfo) +{ + strscpy(drvinfo->driver, MVPP2_DRIVER_NAME, + sizeof(drvinfo->driver)); + strscpy(drvinfo->version, MVPP2_DRIVER_VERSION, + sizeof(drvinfo->version)); + strscpy(drvinfo->bus_info, dev_name(&dev->dev), + sizeof(drvinfo->bus_info)); +} + +static void +mvpp2_ethtool_get_ringparam(struct net_device *dev, + struct ethtool_ringparam *ring, + struct kernel_ethtool_ringparam *kernel_ring, + struct netlink_ext_ack *extack) +{ + struct mvpp2_port *port = netdev_priv(dev); + + ring->rx_max_pending = MVPP2_MAX_RXD_MAX; + ring->tx_max_pending = MVPP2_MAX_TXD_MAX; + ring->rx_pending = port->rx_ring_size; + ring->tx_pending = port->tx_ring_size; +} + +static int +mvpp2_ethtool_set_ringparam(struct net_device *dev, + struct ethtool_ringparam *ring, + struct kernel_ethtool_ringparam *kernel_ring, + struct netlink_ext_ack *extack) +{ + struct mvpp2_port *port = netdev_priv(dev); + u16 prev_rx_ring_size = port->rx_ring_size; + u16 prev_tx_ring_size = port->tx_ring_size; + int err; + + err = mvpp2_check_ringparam_valid(dev, ring); + if (err) + return err; + + if (!netif_running(dev)) { + port->rx_ring_size = ring->rx_pending; + port->tx_ring_size = ring->tx_pending; + return 0; + } + + /* The interface is running, so we have to force a + * reallocation of the queues + */ + mvpp2_stop_dev(port); + mvpp2_cleanup_rxqs(port); + mvpp2_cleanup_txqs(port); + + port->rx_ring_size = ring->rx_pending; + port->tx_ring_size = ring->tx_pending; + + err = mvpp2_setup_rxqs(port); + if (err) { + /* Reallocate Rx queues with the original ring size */ + port->rx_ring_size = prev_rx_ring_size; + ring->rx_pending = prev_rx_ring_size; + err = mvpp2_setup_rxqs(port); + if (err) + goto err_out; + } + err = mvpp2_setup_txqs(port); + if (err) { + /* Reallocate Tx queues with the original ring size */ + port->tx_ring_size = prev_tx_ring_size; + ring->tx_pending = prev_tx_ring_size; + err = mvpp2_setup_txqs(port); + if (err) + goto err_clean_rxqs; + } + + mvpp2_start_dev(port); + mvpp2_egress_enable(port); + mvpp2_ingress_enable(port); + + return 0; + +err_clean_rxqs: + mvpp2_cleanup_rxqs(port); +err_out: + netdev_err(dev, "failed to change ring parameters"); + return err; +} + +static void mvpp2_ethtool_get_pause_param(struct net_device *dev, + struct ethtool_pauseparam *pause) +{ + struct mvpp2_port *port = netdev_priv(dev); + + if (!port->phylink) + return; + + phylink_ethtool_get_pauseparam(port->phylink, pause); +} + +static int mvpp2_ethtool_set_pause_param(struct net_device *dev, + struct ethtool_pauseparam *pause) +{ + struct mvpp2_port *port = netdev_priv(dev); + + if (!port->phylink) + return -ENOTSUPP; + + return phylink_ethtool_set_pauseparam(port->phylink, pause); +} + +static int mvpp2_ethtool_get_link_ksettings(struct net_device *dev, + struct ethtool_link_ksettings *cmd) +{ + struct mvpp2_port *port = netdev_priv(dev); + + if (!port->phylink) + return -ENOTSUPP; + + return phylink_ethtool_ksettings_get(port->phylink, cmd); +} + +static int mvpp2_ethtool_set_link_ksettings(struct net_device *dev, + const struct ethtool_link_ksettings *cmd) +{ + struct mvpp2_port *port = netdev_priv(dev); + + if (!port->phylink) + return -ENOTSUPP; + + return phylink_ethtool_ksettings_set(port->phylink, cmd); +} + +static int mvpp2_ethtool_get_rxnfc(struct net_device *dev, + struct ethtool_rxnfc *info, u32 *rules) +{ + struct mvpp2_port *port = netdev_priv(dev); + int ret = 0, i, loc = 0; + + if (!mvpp22_rss_is_supported(port)) + return -EOPNOTSUPP; + + switch (info->cmd) { + case ETHTOOL_GRXFH: + ret = mvpp2_ethtool_rxfh_get(port, info); + break; + case ETHTOOL_GRXRINGS: + info->data = port->nrxqs; + break; + case ETHTOOL_GRXCLSRLCNT: + info->rule_cnt = port->n_rfs_rules; + break; + case ETHTOOL_GRXCLSRULE: + ret = mvpp2_ethtool_cls_rule_get(port, info); + break; + case ETHTOOL_GRXCLSRLALL: + for (i = 0; i < MVPP2_N_RFS_ENTRIES_PER_FLOW; i++) { + if (loc == info->rule_cnt) { + ret = -EMSGSIZE; + break; + } + + if (port->rfs_rules[i]) + rules[loc++] = i; + } + break; + default: + return -ENOTSUPP; + } + + return ret; +} + +static int mvpp2_ethtool_set_rxnfc(struct net_device *dev, + struct ethtool_rxnfc *info) +{ + struct mvpp2_port *port = netdev_priv(dev); + int ret = 0; + + if (!mvpp22_rss_is_supported(port)) + return -EOPNOTSUPP; + + switch (info->cmd) { + case ETHTOOL_SRXFH: + ret = mvpp2_ethtool_rxfh_set(port, info); + break; + case ETHTOOL_SRXCLSRLINS: + ret = mvpp2_ethtool_cls_rule_ins(port, info); + break; + case ETHTOOL_SRXCLSRLDEL: + ret = mvpp2_ethtool_cls_rule_del(port, info); + break; + default: + return -EOPNOTSUPP; + } + return ret; +} + +static u32 mvpp2_ethtool_get_rxfh_indir_size(struct net_device *dev) +{ + struct mvpp2_port *port = netdev_priv(dev); + + return mvpp22_rss_is_supported(port) ? MVPP22_RSS_TABLE_ENTRIES : 0; +} + +static int mvpp2_ethtool_get_rxfh(struct net_device *dev, u32 *indir, u8 *key, + u8 *hfunc) +{ + struct mvpp2_port *port = netdev_priv(dev); + int ret = 0; + + if (!mvpp22_rss_is_supported(port)) + return -EOPNOTSUPP; + + if (indir) + ret = mvpp22_port_rss_ctx_indir_get(port, 0, indir); + + if (hfunc) + *hfunc = ETH_RSS_HASH_CRC32; + + return ret; +} + +static int mvpp2_ethtool_set_rxfh(struct net_device *dev, const u32 *indir, + const u8 *key, const u8 hfunc) +{ + struct mvpp2_port *port = netdev_priv(dev); + int ret = 0; + + if (!mvpp22_rss_is_supported(port)) + return -EOPNOTSUPP; + + if (hfunc != ETH_RSS_HASH_NO_CHANGE && hfunc != ETH_RSS_HASH_CRC32) + return -EOPNOTSUPP; + + if (key) + return -EOPNOTSUPP; + + if (indir) + ret = mvpp22_port_rss_ctx_indir_set(port, 0, indir); + + return ret; +} + +static int mvpp2_ethtool_get_rxfh_context(struct net_device *dev, u32 *indir, + u8 *key, u8 *hfunc, u32 rss_context) +{ + struct mvpp2_port *port = netdev_priv(dev); + int ret = 0; + + if (!mvpp22_rss_is_supported(port)) + return -EOPNOTSUPP; + if (rss_context >= MVPP22_N_RSS_TABLES) + return -EINVAL; + + if (hfunc) + *hfunc = ETH_RSS_HASH_CRC32; + + if (indir) + ret = mvpp22_port_rss_ctx_indir_get(port, rss_context, indir); + + return ret; +} + +static int mvpp2_ethtool_set_rxfh_context(struct net_device *dev, + const u32 *indir, const u8 *key, + const u8 hfunc, u32 *rss_context, + bool delete) +{ + struct mvpp2_port *port = netdev_priv(dev); + int ret; + + if (!mvpp22_rss_is_supported(port)) + return -EOPNOTSUPP; + + if (hfunc != ETH_RSS_HASH_NO_CHANGE && hfunc != ETH_RSS_HASH_CRC32) + return -EOPNOTSUPP; + + if (key) + return -EOPNOTSUPP; + + if (delete) + return mvpp22_port_rss_ctx_delete(port, *rss_context); + + if (*rss_context == ETH_RXFH_CONTEXT_ALLOC) { + ret = mvpp22_port_rss_ctx_create(port, rss_context); + if (ret) + return ret; + } + + return mvpp22_port_rss_ctx_indir_set(port, *rss_context, indir); +} +/* Device ops */ + +static const struct net_device_ops mvpp2_netdev_ops = { + .ndo_open = mvpp2_open, + .ndo_stop = mvpp2_stop, + .ndo_start_xmit = mvpp2_tx, + .ndo_set_rx_mode = mvpp2_set_rx_mode, + .ndo_set_mac_address = mvpp2_set_mac_address, + .ndo_change_mtu = mvpp2_change_mtu, + .ndo_get_stats64 = mvpp2_get_stats64, + .ndo_eth_ioctl = mvpp2_ioctl, + .ndo_vlan_rx_add_vid = mvpp2_vlan_rx_add_vid, + .ndo_vlan_rx_kill_vid = mvpp2_vlan_rx_kill_vid, + .ndo_set_features = mvpp2_set_features, + .ndo_bpf = mvpp2_xdp, + .ndo_xdp_xmit = mvpp2_xdp_xmit, +}; + +static const struct ethtool_ops mvpp2_eth_tool_ops = { + .supported_coalesce_params = ETHTOOL_COALESCE_USECS | + ETHTOOL_COALESCE_MAX_FRAMES, + .nway_reset = mvpp2_ethtool_nway_reset, + .get_link = ethtool_op_get_link, + .get_ts_info = mvpp2_ethtool_get_ts_info, + .set_coalesce = mvpp2_ethtool_set_coalesce, + .get_coalesce = mvpp2_ethtool_get_coalesce, + .get_drvinfo = mvpp2_ethtool_get_drvinfo, + .get_ringparam = mvpp2_ethtool_get_ringparam, + .set_ringparam = mvpp2_ethtool_set_ringparam, + .get_strings = mvpp2_ethtool_get_strings, + .get_ethtool_stats = mvpp2_ethtool_get_stats, + .get_sset_count = mvpp2_ethtool_get_sset_count, + .get_pauseparam = mvpp2_ethtool_get_pause_param, + .set_pauseparam = mvpp2_ethtool_set_pause_param, + .get_link_ksettings = mvpp2_ethtool_get_link_ksettings, + .set_link_ksettings = mvpp2_ethtool_set_link_ksettings, + .get_rxnfc = mvpp2_ethtool_get_rxnfc, + .set_rxnfc = mvpp2_ethtool_set_rxnfc, + .get_rxfh_indir_size = mvpp2_ethtool_get_rxfh_indir_size, + .get_rxfh = mvpp2_ethtool_get_rxfh, + .set_rxfh = mvpp2_ethtool_set_rxfh, + .get_rxfh_context = mvpp2_ethtool_get_rxfh_context, + .set_rxfh_context = mvpp2_ethtool_set_rxfh_context, +}; + +/* Used for PPv2.1, or PPv2.2 with the old Device Tree binding that + * had a single IRQ defined per-port. + */ +static int mvpp2_simple_queue_vectors_init(struct mvpp2_port *port, + struct device_node *port_node) +{ + struct mvpp2_queue_vector *v = &port->qvecs[0]; + + v->first_rxq = 0; + v->nrxqs = port->nrxqs; + v->type = MVPP2_QUEUE_VECTOR_SHARED; + v->sw_thread_id = 0; + v->sw_thread_mask = *cpumask_bits(cpu_online_mask); + v->port = port; + v->irq = irq_of_parse_and_map(port_node, 0); + if (v->irq <= 0) + return -EINVAL; + netif_napi_add(port->dev, &v->napi, mvpp2_poll); + + port->nqvecs = 1; + + return 0; +} + +static int mvpp2_multi_queue_vectors_init(struct mvpp2_port *port, + struct device_node *port_node) +{ + struct mvpp2 *priv = port->priv; + struct mvpp2_queue_vector *v; + int i, ret; + + switch (queue_mode) { + case MVPP2_QDIST_SINGLE_MODE: + port->nqvecs = priv->nthreads + 1; + break; + case MVPP2_QDIST_MULTI_MODE: + port->nqvecs = priv->nthreads; + break; + } + + for (i = 0; i < port->nqvecs; i++) { + char irqname[16]; + + v = port->qvecs + i; + + v->port = port; + v->type = MVPP2_QUEUE_VECTOR_PRIVATE; + v->sw_thread_id = i; + v->sw_thread_mask = BIT(i); + + if (port->flags & MVPP2_F_DT_COMPAT) + snprintf(irqname, sizeof(irqname), "tx-cpu%d", i); + else + snprintf(irqname, sizeof(irqname), "hif%d", i); + + if (queue_mode == MVPP2_QDIST_MULTI_MODE) { + v->first_rxq = i; + v->nrxqs = 1; + } else if (queue_mode == MVPP2_QDIST_SINGLE_MODE && + i == (port->nqvecs - 1)) { + v->first_rxq = 0; + v->nrxqs = port->nrxqs; + v->type = MVPP2_QUEUE_VECTOR_SHARED; + + if (port->flags & MVPP2_F_DT_COMPAT) + strncpy(irqname, "rx-shared", sizeof(irqname)); + } + + if (port_node) + v->irq = of_irq_get_byname(port_node, irqname); + else + v->irq = fwnode_irq_get(port->fwnode, i); + if (v->irq <= 0) { + ret = -EINVAL; + goto err; + } + + netif_napi_add(port->dev, &v->napi, mvpp2_poll); + } + + return 0; + +err: + for (i = 0; i < port->nqvecs; i++) + irq_dispose_mapping(port->qvecs[i].irq); + return ret; +} + +static int mvpp2_queue_vectors_init(struct mvpp2_port *port, + struct device_node *port_node) +{ + if (port->has_tx_irqs) + return mvpp2_multi_queue_vectors_init(port, port_node); + else + return mvpp2_simple_queue_vectors_init(port, port_node); +} + +static void mvpp2_queue_vectors_deinit(struct mvpp2_port *port) +{ + int i; + + for (i = 0; i < port->nqvecs; i++) + irq_dispose_mapping(port->qvecs[i].irq); +} + +/* Configure Rx queue group interrupt for this port */ +static void mvpp2_rx_irqs_setup(struct mvpp2_port *port) +{ + struct mvpp2 *priv = port->priv; + u32 val; + int i; + + if (priv->hw_version == MVPP21) { + mvpp2_write(priv, MVPP21_ISR_RXQ_GROUP_REG(port->id), + port->nrxqs); + return; + } + + /* Handle the more complicated PPv2.2 and PPv2.3 case */ + for (i = 0; i < port->nqvecs; i++) { + struct mvpp2_queue_vector *qv = port->qvecs + i; + + if (!qv->nrxqs) + continue; + + val = qv->sw_thread_id; + val |= port->id << MVPP22_ISR_RXQ_GROUP_INDEX_GROUP_OFFSET; + mvpp2_write(priv, MVPP22_ISR_RXQ_GROUP_INDEX_REG, val); + + val = qv->first_rxq; + val |= qv->nrxqs << MVPP22_ISR_RXQ_SUB_GROUP_SIZE_OFFSET; + mvpp2_write(priv, MVPP22_ISR_RXQ_SUB_GROUP_CONFIG_REG, val); + } +} + +/* Initialize port HW */ +static int mvpp2_port_init(struct mvpp2_port *port) +{ + struct device *dev = port->dev->dev.parent; + struct mvpp2 *priv = port->priv; + struct mvpp2_txq_pcpu *txq_pcpu; + unsigned int thread; + int queue, err, val; + + /* Checks for hardware constraints */ + if (port->first_rxq + port->nrxqs > + MVPP2_MAX_PORTS * priv->max_port_rxqs) + return -EINVAL; + + if (port->nrxqs > priv->max_port_rxqs || port->ntxqs > MVPP2_MAX_TXQ) + return -EINVAL; + + /* Disable port */ + mvpp2_egress_disable(port); + mvpp2_port_disable(port); + + if (mvpp2_is_xlg(port->phy_interface)) { + val = readl(port->base + MVPP22_XLG_CTRL0_REG); + val &= ~MVPP22_XLG_CTRL0_FORCE_LINK_PASS; + val |= MVPP22_XLG_CTRL0_FORCE_LINK_DOWN; + writel(val, port->base + MVPP22_XLG_CTRL0_REG); + } else { + val = readl(port->base + MVPP2_GMAC_AUTONEG_CONFIG); + val &= ~MVPP2_GMAC_FORCE_LINK_PASS; + val |= MVPP2_GMAC_FORCE_LINK_DOWN; + writel(val, port->base + MVPP2_GMAC_AUTONEG_CONFIG); + } + + port->tx_time_coal = MVPP2_TXDONE_COAL_USEC; + + port->txqs = devm_kcalloc(dev, port->ntxqs, sizeof(*port->txqs), + GFP_KERNEL); + if (!port->txqs) + return -ENOMEM; + + /* Associate physical Tx queues to this port and initialize. + * The mapping is predefined. + */ + for (queue = 0; queue < port->ntxqs; queue++) { + int queue_phy_id = mvpp2_txq_phys(port->id, queue); + struct mvpp2_tx_queue *txq; + + txq = devm_kzalloc(dev, sizeof(*txq), GFP_KERNEL); + if (!txq) { + err = -ENOMEM; + goto err_free_percpu; + } + + txq->pcpu = alloc_percpu(struct mvpp2_txq_pcpu); + if (!txq->pcpu) { + err = -ENOMEM; + goto err_free_percpu; + } + + txq->id = queue_phy_id; + txq->log_id = queue; + txq->done_pkts_coal = MVPP2_TXDONE_COAL_PKTS_THRESH; + for (thread = 0; thread < priv->nthreads; thread++) { + txq_pcpu = per_cpu_ptr(txq->pcpu, thread); + txq_pcpu->thread = thread; + } + + port->txqs[queue] = txq; + } + + port->rxqs = devm_kcalloc(dev, port->nrxqs, sizeof(*port->rxqs), + GFP_KERNEL); + if (!port->rxqs) { + err = -ENOMEM; + goto err_free_percpu; + } + + /* Allocate and initialize Rx queue for this port */ + for (queue = 0; queue < port->nrxqs; queue++) { + struct mvpp2_rx_queue *rxq; + + /* Map physical Rx queue to port's logical Rx queue */ + rxq = devm_kzalloc(dev, sizeof(*rxq), GFP_KERNEL); + if (!rxq) { + err = -ENOMEM; + goto err_free_percpu; + } + /* Map this Rx queue to a physical queue */ + rxq->id = port->first_rxq + queue; + rxq->port = port->id; + rxq->logic_rxq = queue; + + port->rxqs[queue] = rxq; + } + + mvpp2_rx_irqs_setup(port); + + /* Create Rx descriptor rings */ + for (queue = 0; queue < port->nrxqs; queue++) { + struct mvpp2_rx_queue *rxq = port->rxqs[queue]; + + rxq->size = port->rx_ring_size; + rxq->pkts_coal = MVPP2_RX_COAL_PKTS; + rxq->time_coal = MVPP2_RX_COAL_USEC; + } + + mvpp2_ingress_disable(port); + + /* Port default configuration */ + mvpp2_defaults_set(port); + + /* Port's classifier configuration */ + mvpp2_cls_oversize_rxq_set(port); + mvpp2_cls_port_config(port); + + if (mvpp22_rss_is_supported(port)) + mvpp22_port_rss_init(port); + + /* Provide an initial Rx packet size */ + port->pkt_size = MVPP2_RX_PKT_SIZE(port->dev->mtu); + + /* Initialize pools for swf */ + err = mvpp2_swf_bm_pool_init(port); + if (err) + goto err_free_percpu; + + /* Clear all port stats */ + mvpp2_read_stats(port); + memset(port->ethtool_stats, 0, + MVPP2_N_ETHTOOL_STATS(port->ntxqs, port->nrxqs) * sizeof(u64)); + + return 0; + +err_free_percpu: + for (queue = 0; queue < port->ntxqs; queue++) { + if (!port->txqs[queue]) + continue; + free_percpu(port->txqs[queue]->pcpu); + } + return err; +} + +static bool mvpp22_port_has_legacy_tx_irqs(struct device_node *port_node, + unsigned long *flags) +{ + char *irqs[5] = { "rx-shared", "tx-cpu0", "tx-cpu1", "tx-cpu2", + "tx-cpu3" }; + int i; + + for (i = 0; i < 5; i++) + if (of_property_match_string(port_node, "interrupt-names", + irqs[i]) < 0) + return false; + + *flags |= MVPP2_F_DT_COMPAT; + return true; +} + +/* Checks if the port dt description has the required Tx interrupts: + * - PPv2.1: there are no such interrupts. + * - PPv2.2 and PPv2.3: + * - The old DTs have: "rx-shared", "tx-cpuX" with X in [0...3] + * - The new ones have: "hifX" with X in [0..8] + * + * All those variants are supported to keep the backward compatibility. + */ +static bool mvpp2_port_has_irqs(struct mvpp2 *priv, + struct device_node *port_node, + unsigned long *flags) +{ + char name[5]; + int i; + + /* ACPI */ + if (!port_node) + return true; + + if (priv->hw_version == MVPP21) + return false; + + if (mvpp22_port_has_legacy_tx_irqs(port_node, flags)) + return true; + + for (i = 0; i < MVPP2_MAX_THREADS; i++) { + snprintf(name, 5, "hif%d", i); + if (of_property_match_string(port_node, "interrupt-names", + name) < 0) + return false; + } + + return true; +} + +static void mvpp2_port_copy_mac_addr(struct net_device *dev, struct mvpp2 *priv, + struct fwnode_handle *fwnode, + char **mac_from) +{ + struct mvpp2_port *port = netdev_priv(dev); + char hw_mac_addr[ETH_ALEN] = {0}; + char fw_mac_addr[ETH_ALEN]; + + if (!fwnode_get_mac_address(fwnode, fw_mac_addr)) { + *mac_from = "firmware node"; + eth_hw_addr_set(dev, fw_mac_addr); + return; + } + + if (priv->hw_version == MVPP21) { + mvpp21_get_mac_address(port, hw_mac_addr); + if (is_valid_ether_addr(hw_mac_addr)) { + *mac_from = "hardware"; + eth_hw_addr_set(dev, hw_mac_addr); + return; + } + } + + *mac_from = "random"; + eth_hw_addr_random(dev); +} + +static struct mvpp2_port *mvpp2_phylink_to_port(struct phylink_config *config) +{ + return container_of(config, struct mvpp2_port, phylink_config); +} + +static struct mvpp2_port *mvpp2_pcs_xlg_to_port(struct phylink_pcs *pcs) +{ + return container_of(pcs, struct mvpp2_port, pcs_xlg); +} + +static struct mvpp2_port *mvpp2_pcs_gmac_to_port(struct phylink_pcs *pcs) +{ + return container_of(pcs, struct mvpp2_port, pcs_gmac); +} + +static void mvpp2_xlg_pcs_get_state(struct phylink_pcs *pcs, + struct phylink_link_state *state) +{ + struct mvpp2_port *port = mvpp2_pcs_xlg_to_port(pcs); + u32 val; + + if (port->phy_interface == PHY_INTERFACE_MODE_5GBASER) + state->speed = SPEED_5000; + else + state->speed = SPEED_10000; + state->duplex = 1; + state->an_complete = 1; + + val = readl(port->base + MVPP22_XLG_STATUS); + state->link = !!(val & MVPP22_XLG_STATUS_LINK_UP); + + state->pause = 0; + val = readl(port->base + MVPP22_XLG_CTRL0_REG); + if (val & MVPP22_XLG_CTRL0_TX_FLOW_CTRL_EN) + state->pause |= MLO_PAUSE_TX; + if (val & MVPP22_XLG_CTRL0_RX_FLOW_CTRL_EN) + state->pause |= MLO_PAUSE_RX; +} + +static int mvpp2_xlg_pcs_config(struct phylink_pcs *pcs, + unsigned int mode, + phy_interface_t interface, + const unsigned long *advertising, + bool permit_pause_to_mac) +{ + return 0; +} + +static const struct phylink_pcs_ops mvpp2_phylink_xlg_pcs_ops = { + .pcs_get_state = mvpp2_xlg_pcs_get_state, + .pcs_config = mvpp2_xlg_pcs_config, +}; + +static int mvpp2_gmac_pcs_validate(struct phylink_pcs *pcs, + unsigned long *supported, + const struct phylink_link_state *state) +{ + /* When in 802.3z mode, we must have AN enabled: + * Bit 2 Field InBandAnEn In-band Auto-Negotiation enable. ... + * When <PortType> = 1 (1000BASE-X) this field must be set to 1. + */ + if (phy_interface_mode_is_8023z(state->interface) && + !phylink_test(state->advertising, Autoneg)) + return -EINVAL; + + return 0; +} + +static void mvpp2_gmac_pcs_get_state(struct phylink_pcs *pcs, + struct phylink_link_state *state) +{ + struct mvpp2_port *port = mvpp2_pcs_gmac_to_port(pcs); + u32 val; + + val = readl(port->base + MVPP2_GMAC_STATUS0); + + state->an_complete = !!(val & MVPP2_GMAC_STATUS0_AN_COMPLETE); + state->link = !!(val & MVPP2_GMAC_STATUS0_LINK_UP); + state->duplex = !!(val & MVPP2_GMAC_STATUS0_FULL_DUPLEX); + + switch (port->phy_interface) { + case PHY_INTERFACE_MODE_1000BASEX: + state->speed = SPEED_1000; + break; + case PHY_INTERFACE_MODE_2500BASEX: + state->speed = SPEED_2500; + break; + default: + if (val & MVPP2_GMAC_STATUS0_GMII_SPEED) + state->speed = SPEED_1000; + else if (val & MVPP2_GMAC_STATUS0_MII_SPEED) + state->speed = SPEED_100; + else + state->speed = SPEED_10; + } + + state->pause = 0; + if (val & MVPP2_GMAC_STATUS0_RX_PAUSE) + state->pause |= MLO_PAUSE_RX; + if (val & MVPP2_GMAC_STATUS0_TX_PAUSE) + state->pause |= MLO_PAUSE_TX; +} + +static int mvpp2_gmac_pcs_config(struct phylink_pcs *pcs, unsigned int mode, + phy_interface_t interface, + const unsigned long *advertising, + bool permit_pause_to_mac) +{ + struct mvpp2_port *port = mvpp2_pcs_gmac_to_port(pcs); + u32 mask, val, an, old_an, changed; + + mask = MVPP2_GMAC_IN_BAND_AUTONEG_BYPASS | + MVPP2_GMAC_IN_BAND_AUTONEG | + MVPP2_GMAC_AN_SPEED_EN | + MVPP2_GMAC_FLOW_CTRL_AUTONEG | + MVPP2_GMAC_AN_DUPLEX_EN; + + if (phylink_autoneg_inband(mode)) { + mask |= MVPP2_GMAC_CONFIG_MII_SPEED | + MVPP2_GMAC_CONFIG_GMII_SPEED | + MVPP2_GMAC_CONFIG_FULL_DUPLEX; + val = MVPP2_GMAC_IN_BAND_AUTONEG; + + if (interface == PHY_INTERFACE_MODE_SGMII) { + /* SGMII mode receives the speed and duplex from PHY */ + val |= MVPP2_GMAC_AN_SPEED_EN | + MVPP2_GMAC_AN_DUPLEX_EN; + } else { + /* 802.3z mode has fixed speed and duplex */ + val |= MVPP2_GMAC_CONFIG_GMII_SPEED | + MVPP2_GMAC_CONFIG_FULL_DUPLEX; + + /* The FLOW_CTRL_AUTONEG bit selects either the hardware + * automatically or the bits in MVPP22_GMAC_CTRL_4_REG + * manually controls the GMAC pause modes. + */ + if (permit_pause_to_mac) + val |= MVPP2_GMAC_FLOW_CTRL_AUTONEG; + + /* Configure advertisement bits */ + mask |= MVPP2_GMAC_FC_ADV_EN | MVPP2_GMAC_FC_ADV_ASM_EN; + if (phylink_test(advertising, Pause)) + val |= MVPP2_GMAC_FC_ADV_EN; + if (phylink_test(advertising, Asym_Pause)) + val |= MVPP2_GMAC_FC_ADV_ASM_EN; + } + } else { + val = 0; + } + + old_an = an = readl(port->base + MVPP2_GMAC_AUTONEG_CONFIG); + an = (an & ~mask) | val; + changed = an ^ old_an; + if (changed) + writel(an, port->base + MVPP2_GMAC_AUTONEG_CONFIG); + + /* We are only interested in the advertisement bits changing */ + return changed & (MVPP2_GMAC_FC_ADV_EN | MVPP2_GMAC_FC_ADV_ASM_EN); +} + +static void mvpp2_gmac_pcs_an_restart(struct phylink_pcs *pcs) +{ + struct mvpp2_port *port = mvpp2_pcs_gmac_to_port(pcs); + u32 val = readl(port->base + MVPP2_GMAC_AUTONEG_CONFIG); + + writel(val | MVPP2_GMAC_IN_BAND_RESTART_AN, + port->base + MVPP2_GMAC_AUTONEG_CONFIG); + writel(val & ~MVPP2_GMAC_IN_BAND_RESTART_AN, + port->base + MVPP2_GMAC_AUTONEG_CONFIG); +} + +static const struct phylink_pcs_ops mvpp2_phylink_gmac_pcs_ops = { + .pcs_validate = mvpp2_gmac_pcs_validate, + .pcs_get_state = mvpp2_gmac_pcs_get_state, + .pcs_config = mvpp2_gmac_pcs_config, + .pcs_an_restart = mvpp2_gmac_pcs_an_restart, +}; + +static void mvpp2_xlg_config(struct mvpp2_port *port, unsigned int mode, + const struct phylink_link_state *state) +{ + u32 val; + + mvpp2_modify(port->base + MVPP22_XLG_CTRL0_REG, + MVPP22_XLG_CTRL0_MAC_RESET_DIS, + MVPP22_XLG_CTRL0_MAC_RESET_DIS); + mvpp2_modify(port->base + MVPP22_XLG_CTRL4_REG, + MVPP22_XLG_CTRL4_MACMODSELECT_GMAC | + MVPP22_XLG_CTRL4_EN_IDLE_CHECK | + MVPP22_XLG_CTRL4_FWD_FC | MVPP22_XLG_CTRL4_FWD_PFC, + MVPP22_XLG_CTRL4_FWD_FC | MVPP22_XLG_CTRL4_FWD_PFC); + + /* Wait for reset to deassert */ + do { + val = readl(port->base + MVPP22_XLG_CTRL0_REG); + } while (!(val & MVPP22_XLG_CTRL0_MAC_RESET_DIS)); +} + +static void mvpp2_gmac_config(struct mvpp2_port *port, unsigned int mode, + const struct phylink_link_state *state) +{ + u32 old_ctrl0, ctrl0; + u32 old_ctrl2, ctrl2; + u32 old_ctrl4, ctrl4; + + old_ctrl0 = ctrl0 = readl(port->base + MVPP2_GMAC_CTRL_0_REG); + old_ctrl2 = ctrl2 = readl(port->base + MVPP2_GMAC_CTRL_2_REG); + old_ctrl4 = ctrl4 = readl(port->base + MVPP22_GMAC_CTRL_4_REG); + + ctrl0 &= ~MVPP2_GMAC_PORT_TYPE_MASK; + ctrl2 &= ~(MVPP2_GMAC_INBAND_AN_MASK | MVPP2_GMAC_PCS_ENABLE_MASK | MVPP2_GMAC_FLOW_CTRL_MASK); + + /* Configure port type */ + if (phy_interface_mode_is_8023z(state->interface)) { + ctrl2 |= MVPP2_GMAC_PCS_ENABLE_MASK; + ctrl4 &= ~MVPP22_CTRL4_EXT_PIN_GMII_SEL; + ctrl4 |= MVPP22_CTRL4_SYNC_BYPASS_DIS | + MVPP22_CTRL4_DP_CLK_SEL | + MVPP22_CTRL4_QSGMII_BYPASS_ACTIVE; + } else if (state->interface == PHY_INTERFACE_MODE_SGMII) { + ctrl2 |= MVPP2_GMAC_PCS_ENABLE_MASK | MVPP2_GMAC_INBAND_AN_MASK; + ctrl4 &= ~MVPP22_CTRL4_EXT_PIN_GMII_SEL; + ctrl4 |= MVPP22_CTRL4_SYNC_BYPASS_DIS | + MVPP22_CTRL4_DP_CLK_SEL | + MVPP22_CTRL4_QSGMII_BYPASS_ACTIVE; + } else if (phy_interface_mode_is_rgmii(state->interface)) { + ctrl4 &= ~MVPP22_CTRL4_DP_CLK_SEL; + ctrl4 |= MVPP22_CTRL4_EXT_PIN_GMII_SEL | + MVPP22_CTRL4_SYNC_BYPASS_DIS | + MVPP22_CTRL4_QSGMII_BYPASS_ACTIVE; + } + + /* Configure negotiation style */ + if (!phylink_autoneg_inband(mode)) { + /* Phy or fixed speed - no in-band AN, nothing to do, leave the + * configured speed, duplex and flow control as-is. + */ + } else if (state->interface == PHY_INTERFACE_MODE_SGMII) { + /* SGMII in-band mode receives the speed and duplex from + * the PHY. Flow control information is not received. */ + } else if (phy_interface_mode_is_8023z(state->interface)) { + /* 1000BaseX and 2500BaseX ports cannot negotiate speed nor can + * they negotiate duplex: they are always operating with a fixed + * speed of 1000/2500Mbps in full duplex, so force 1000/2500 + * speed and full duplex here. + */ + ctrl0 |= MVPP2_GMAC_PORT_TYPE_MASK; + } + + if (old_ctrl0 != ctrl0) + writel(ctrl0, port->base + MVPP2_GMAC_CTRL_0_REG); + if (old_ctrl2 != ctrl2) + writel(ctrl2, port->base + MVPP2_GMAC_CTRL_2_REG); + if (old_ctrl4 != ctrl4) + writel(ctrl4, port->base + MVPP22_GMAC_CTRL_4_REG); +} + +static struct phylink_pcs *mvpp2_select_pcs(struct phylink_config *config, + phy_interface_t interface) +{ + struct mvpp2_port *port = mvpp2_phylink_to_port(config); + + /* Select the appropriate PCS operations depending on the + * configured interface mode. We will only switch to a mode + * that the validate() checks have already passed. + */ + if (mvpp2_is_xlg(interface)) + return &port->pcs_xlg; + else + return &port->pcs_gmac; +} + +static int mvpp2_mac_prepare(struct phylink_config *config, unsigned int mode, + phy_interface_t interface) +{ + struct mvpp2_port *port = mvpp2_phylink_to_port(config); + + /* Check for invalid configuration */ + if (mvpp2_is_xlg(interface) && port->gop_id != 0) { + netdev_err(port->dev, "Invalid mode on %s\n", port->dev->name); + return -EINVAL; + } + + if (port->phy_interface != interface || + phylink_autoneg_inband(mode)) { + /* Force the link down when changing the interface or if in + * in-band mode to ensure we do not change the configuration + * while the hardware is indicating link is up. We force both + * XLG and GMAC down to ensure that they're both in a known + * state. + */ + mvpp2_modify(port->base + MVPP2_GMAC_AUTONEG_CONFIG, + MVPP2_GMAC_FORCE_LINK_PASS | + MVPP2_GMAC_FORCE_LINK_DOWN, + MVPP2_GMAC_FORCE_LINK_DOWN); + + if (mvpp2_port_supports_xlg(port)) + mvpp2_modify(port->base + MVPP22_XLG_CTRL0_REG, + MVPP22_XLG_CTRL0_FORCE_LINK_PASS | + MVPP22_XLG_CTRL0_FORCE_LINK_DOWN, + MVPP22_XLG_CTRL0_FORCE_LINK_DOWN); + } + + /* Make sure the port is disabled when reconfiguring the mode */ + mvpp2_port_disable(port); + + if (port->phy_interface != interface) { + /* Place GMAC into reset */ + mvpp2_modify(port->base + MVPP2_GMAC_CTRL_2_REG, + MVPP2_GMAC_PORT_RESET_MASK, + MVPP2_GMAC_PORT_RESET_MASK); + + if (port->priv->hw_version >= MVPP22) { + mvpp22_gop_mask_irq(port); + + phy_power_off(port->comphy); + + /* Reconfigure the serdes lanes */ + mvpp22_mode_reconfigure(port, interface); + } + } + + return 0; +} + +static void mvpp2_mac_config(struct phylink_config *config, unsigned int mode, + const struct phylink_link_state *state) +{ + struct mvpp2_port *port = mvpp2_phylink_to_port(config); + + /* mac (re)configuration */ + if (mvpp2_is_xlg(state->interface)) + mvpp2_xlg_config(port, mode, state); + else if (phy_interface_mode_is_rgmii(state->interface) || + phy_interface_mode_is_8023z(state->interface) || + state->interface == PHY_INTERFACE_MODE_SGMII) + mvpp2_gmac_config(port, mode, state); + + if (port->priv->hw_version == MVPP21 && port->flags & MVPP2_F_LOOPBACK) + mvpp2_port_loopback_set(port, state); +} + +static int mvpp2_mac_finish(struct phylink_config *config, unsigned int mode, + phy_interface_t interface) +{ + struct mvpp2_port *port = mvpp2_phylink_to_port(config); + + if (port->priv->hw_version >= MVPP22 && + port->phy_interface != interface) { + port->phy_interface = interface; + + /* Unmask interrupts */ + mvpp22_gop_unmask_irq(port); + } + + if (!mvpp2_is_xlg(interface)) { + /* Release GMAC reset and wait */ + mvpp2_modify(port->base + MVPP2_GMAC_CTRL_2_REG, + MVPP2_GMAC_PORT_RESET_MASK, 0); + + while (readl(port->base + MVPP2_GMAC_CTRL_2_REG) & + MVPP2_GMAC_PORT_RESET_MASK) + continue; + } + + mvpp2_port_enable(port); + + /* Allow the link to come up if in in-band mode, otherwise the + * link is forced via mac_link_down()/mac_link_up() + */ + if (phylink_autoneg_inband(mode)) { + if (mvpp2_is_xlg(interface)) + mvpp2_modify(port->base + MVPP22_XLG_CTRL0_REG, + MVPP22_XLG_CTRL0_FORCE_LINK_PASS | + MVPP22_XLG_CTRL0_FORCE_LINK_DOWN, 0); + else + mvpp2_modify(port->base + MVPP2_GMAC_AUTONEG_CONFIG, + MVPP2_GMAC_FORCE_LINK_PASS | + MVPP2_GMAC_FORCE_LINK_DOWN, 0); + } + + return 0; +} + +static void mvpp2_mac_link_up(struct phylink_config *config, + struct phy_device *phy, + unsigned int mode, phy_interface_t interface, + int speed, int duplex, + bool tx_pause, bool rx_pause) +{ + struct mvpp2_port *port = mvpp2_phylink_to_port(config); + u32 val; + int i; + + if (mvpp2_is_xlg(interface)) { + if (!phylink_autoneg_inband(mode)) { + val = MVPP22_XLG_CTRL0_FORCE_LINK_PASS; + if (tx_pause) + val |= MVPP22_XLG_CTRL0_TX_FLOW_CTRL_EN; + if (rx_pause) + val |= MVPP22_XLG_CTRL0_RX_FLOW_CTRL_EN; + + mvpp2_modify(port->base + MVPP22_XLG_CTRL0_REG, + MVPP22_XLG_CTRL0_FORCE_LINK_DOWN | + MVPP22_XLG_CTRL0_FORCE_LINK_PASS | + MVPP22_XLG_CTRL0_TX_FLOW_CTRL_EN | + MVPP22_XLG_CTRL0_RX_FLOW_CTRL_EN, val); + } + } else { + if (!phylink_autoneg_inband(mode)) { + val = MVPP2_GMAC_FORCE_LINK_PASS; + + if (speed == SPEED_1000 || speed == SPEED_2500) + val |= MVPP2_GMAC_CONFIG_GMII_SPEED; + else if (speed == SPEED_100) + val |= MVPP2_GMAC_CONFIG_MII_SPEED; + + if (duplex == DUPLEX_FULL) + val |= MVPP2_GMAC_CONFIG_FULL_DUPLEX; + + mvpp2_modify(port->base + MVPP2_GMAC_AUTONEG_CONFIG, + MVPP2_GMAC_FORCE_LINK_DOWN | + MVPP2_GMAC_FORCE_LINK_PASS | + MVPP2_GMAC_CONFIG_MII_SPEED | + MVPP2_GMAC_CONFIG_GMII_SPEED | + MVPP2_GMAC_CONFIG_FULL_DUPLEX, val); + } + + /* We can always update the flow control enable bits; + * these will only be effective if flow control AN + * (MVPP2_GMAC_FLOW_CTRL_AUTONEG) is disabled. + */ + val = 0; + if (tx_pause) + val |= MVPP22_CTRL4_TX_FC_EN; + if (rx_pause) + val |= MVPP22_CTRL4_RX_FC_EN; + + mvpp2_modify(port->base + MVPP22_GMAC_CTRL_4_REG, + MVPP22_CTRL4_RX_FC_EN | MVPP22_CTRL4_TX_FC_EN, + val); + } + + if (port->priv->global_tx_fc) { + port->tx_fc = tx_pause; + if (tx_pause) + mvpp2_rxq_enable_fc(port); + else + mvpp2_rxq_disable_fc(port); + if (port->priv->percpu_pools) { + for (i = 0; i < port->nrxqs; i++) + mvpp2_bm_pool_update_fc(port, &port->priv->bm_pools[i], tx_pause); + } else { + mvpp2_bm_pool_update_fc(port, port->pool_long, tx_pause); + mvpp2_bm_pool_update_fc(port, port->pool_short, tx_pause); + } + if (port->priv->hw_version == MVPP23) + mvpp23_rx_fifo_fc_en(port->priv, port->id, tx_pause); + } + + mvpp2_port_enable(port); + + mvpp2_egress_enable(port); + mvpp2_ingress_enable(port); + netif_tx_wake_all_queues(port->dev); +} + +static void mvpp2_mac_link_down(struct phylink_config *config, + unsigned int mode, phy_interface_t interface) +{ + struct mvpp2_port *port = mvpp2_phylink_to_port(config); + u32 val; + + if (!phylink_autoneg_inband(mode)) { + if (mvpp2_is_xlg(interface)) { + val = readl(port->base + MVPP22_XLG_CTRL0_REG); + val &= ~MVPP22_XLG_CTRL0_FORCE_LINK_PASS; + val |= MVPP22_XLG_CTRL0_FORCE_LINK_DOWN; + writel(val, port->base + MVPP22_XLG_CTRL0_REG); + } else { + val = readl(port->base + MVPP2_GMAC_AUTONEG_CONFIG); + val &= ~MVPP2_GMAC_FORCE_LINK_PASS; + val |= MVPP2_GMAC_FORCE_LINK_DOWN; + writel(val, port->base + MVPP2_GMAC_AUTONEG_CONFIG); + } + } + + netif_tx_stop_all_queues(port->dev); + mvpp2_egress_disable(port); + mvpp2_ingress_disable(port); + + mvpp2_port_disable(port); +} + +static const struct phylink_mac_ops mvpp2_phylink_ops = { + .validate = phylink_generic_validate, + .mac_select_pcs = mvpp2_select_pcs, + .mac_prepare = mvpp2_mac_prepare, + .mac_config = mvpp2_mac_config, + .mac_finish = mvpp2_mac_finish, + .mac_link_up = mvpp2_mac_link_up, + .mac_link_down = mvpp2_mac_link_down, +}; + +/* Work-around for ACPI */ +static void mvpp2_acpi_start(struct mvpp2_port *port) +{ + /* Phylink isn't used as of now for ACPI, so the MAC has to be + * configured manually when the interface is started. This will + * be removed as soon as the phylink ACPI support lands in. + */ + struct phylink_link_state state = { + .interface = port->phy_interface, + }; + struct phylink_pcs *pcs; + + pcs = mvpp2_select_pcs(&port->phylink_config, port->phy_interface); + + mvpp2_mac_prepare(&port->phylink_config, MLO_AN_INBAND, + port->phy_interface); + mvpp2_mac_config(&port->phylink_config, MLO_AN_INBAND, &state); + pcs->ops->pcs_config(pcs, MLO_AN_INBAND, port->phy_interface, + state.advertising, false); + mvpp2_mac_finish(&port->phylink_config, MLO_AN_INBAND, + port->phy_interface); + mvpp2_mac_link_up(&port->phylink_config, NULL, + MLO_AN_INBAND, port->phy_interface, + SPEED_UNKNOWN, DUPLEX_UNKNOWN, false, false); +} + +/* In order to ensure backward compatibility for ACPI, check if the port + * firmware node comprises the necessary description allowing to use phylink. + */ +static bool mvpp2_use_acpi_compat_mode(struct fwnode_handle *port_fwnode) +{ + if (!is_acpi_node(port_fwnode)) + return false; + + return (!fwnode_property_present(port_fwnode, "phy-handle") && + !fwnode_property_present(port_fwnode, "managed") && + !fwnode_get_named_child_node(port_fwnode, "fixed-link")); +} + +/* Ports initialization */ +static int mvpp2_port_probe(struct platform_device *pdev, + struct fwnode_handle *port_fwnode, + struct mvpp2 *priv) +{ + struct phy *comphy = NULL; + struct mvpp2_port *port; + struct mvpp2_port_pcpu *port_pcpu; + struct device_node *port_node = to_of_node(port_fwnode); + netdev_features_t features; + struct net_device *dev; + struct phylink *phylink; + char *mac_from = ""; + unsigned int ntxqs, nrxqs, thread; + unsigned long flags = 0; + bool has_tx_irqs; + u32 id; + int phy_mode; + int err, i; + + has_tx_irqs = mvpp2_port_has_irqs(priv, port_node, &flags); + if (!has_tx_irqs && queue_mode == MVPP2_QDIST_MULTI_MODE) { + dev_err(&pdev->dev, + "not enough IRQs to support multi queue mode\n"); + return -EINVAL; + } + + ntxqs = MVPP2_MAX_TXQ; + nrxqs = mvpp2_get_nrxqs(priv); + + dev = alloc_etherdev_mqs(sizeof(*port), ntxqs, nrxqs); + if (!dev) + return -ENOMEM; + + phy_mode = fwnode_get_phy_mode(port_fwnode); + if (phy_mode < 0) { + dev_err(&pdev->dev, "incorrect phy mode\n"); + err = phy_mode; + goto err_free_netdev; + } + + /* + * Rewrite 10GBASE-KR to 10GBASE-R for compatibility with existing DT. + * Existing usage of 10GBASE-KR is not correct; no backplane + * negotiation is done, and this driver does not actually support + * 10GBASE-KR. + */ + if (phy_mode == PHY_INTERFACE_MODE_10GKR) + phy_mode = PHY_INTERFACE_MODE_10GBASER; + + if (port_node) { + comphy = devm_of_phy_get(&pdev->dev, port_node, NULL); + if (IS_ERR(comphy)) { + if (PTR_ERR(comphy) == -EPROBE_DEFER) { + err = -EPROBE_DEFER; + goto err_free_netdev; + } + comphy = NULL; + } + } + + if (fwnode_property_read_u32(port_fwnode, "port-id", &id)) { + err = -EINVAL; + dev_err(&pdev->dev, "missing port-id value\n"); + goto err_free_netdev; + } + + dev->tx_queue_len = MVPP2_MAX_TXD_MAX; + dev->watchdog_timeo = 5 * HZ; + dev->netdev_ops = &mvpp2_netdev_ops; + dev->ethtool_ops = &mvpp2_eth_tool_ops; + + port = netdev_priv(dev); + port->dev = dev; + port->fwnode = port_fwnode; + port->ntxqs = ntxqs; + port->nrxqs = nrxqs; + port->priv = priv; + port->has_tx_irqs = has_tx_irqs; + port->flags = flags; + + err = mvpp2_queue_vectors_init(port, port_node); + if (err) + goto err_free_netdev; + + if (port_node) + port->port_irq = of_irq_get_byname(port_node, "link"); + else + port->port_irq = fwnode_irq_get(port_fwnode, port->nqvecs + 1); + if (port->port_irq == -EPROBE_DEFER) { + err = -EPROBE_DEFER; + goto err_deinit_qvecs; + } + if (port->port_irq <= 0) + /* the link irq is optional */ + port->port_irq = 0; + + if (fwnode_property_read_bool(port_fwnode, "marvell,loopback")) + port->flags |= MVPP2_F_LOOPBACK; + + port->id = id; + if (priv->hw_version == MVPP21) + port->first_rxq = port->id * port->nrxqs; + else + port->first_rxq = port->id * priv->max_port_rxqs; + + port->of_node = port_node; + port->phy_interface = phy_mode; + port->comphy = comphy; + + if (priv->hw_version == MVPP21) { + port->base = devm_platform_ioremap_resource(pdev, 2 + id); + if (IS_ERR(port->base)) { + err = PTR_ERR(port->base); + goto err_free_irq; + } + + port->stats_base = port->priv->lms_base + + MVPP21_MIB_COUNTERS_OFFSET + + port->gop_id * MVPP21_MIB_COUNTERS_PORT_SZ; + } else { + if (fwnode_property_read_u32(port_fwnode, "gop-port-id", + &port->gop_id)) { + err = -EINVAL; + dev_err(&pdev->dev, "missing gop-port-id value\n"); + goto err_deinit_qvecs; + } + + port->base = priv->iface_base + MVPP22_GMAC_BASE(port->gop_id); + port->stats_base = port->priv->iface_base + + MVPP22_MIB_COUNTERS_OFFSET + + port->gop_id * MVPP22_MIB_COUNTERS_PORT_SZ; + + /* We may want a property to describe whether we should use + * MAC hardware timestamping. + */ + if (priv->tai) + port->hwtstamp = true; + } + + /* Alloc per-cpu and ethtool stats */ + port->stats = netdev_alloc_pcpu_stats(struct mvpp2_pcpu_stats); + if (!port->stats) { + err = -ENOMEM; + goto err_free_irq; + } + + port->ethtool_stats = devm_kcalloc(&pdev->dev, + MVPP2_N_ETHTOOL_STATS(ntxqs, nrxqs), + sizeof(u64), GFP_KERNEL); + if (!port->ethtool_stats) { + err = -ENOMEM; + goto err_free_stats; + } + + mutex_init(&port->gather_stats_lock); + INIT_DELAYED_WORK(&port->stats_work, mvpp2_gather_hw_statistics); + + mvpp2_port_copy_mac_addr(dev, priv, port_fwnode, &mac_from); + + port->tx_ring_size = MVPP2_MAX_TXD_DFLT; + port->rx_ring_size = MVPP2_MAX_RXD_DFLT; + SET_NETDEV_DEV(dev, &pdev->dev); + + err = mvpp2_port_init(port); + if (err < 0) { + dev_err(&pdev->dev, "failed to init port %d\n", id); + goto err_free_stats; + } + + mvpp2_port_periodic_xon_disable(port); + + mvpp2_mac_reset_assert(port); + mvpp22_pcs_reset_assert(port); + + port->pcpu = alloc_percpu(struct mvpp2_port_pcpu); + if (!port->pcpu) { + err = -ENOMEM; + goto err_free_txq_pcpu; + } + + if (!port->has_tx_irqs) { + for (thread = 0; thread < priv->nthreads; thread++) { + port_pcpu = per_cpu_ptr(port->pcpu, thread); + + hrtimer_init(&port_pcpu->tx_done_timer, CLOCK_MONOTONIC, + HRTIMER_MODE_REL_PINNED_SOFT); + port_pcpu->tx_done_timer.function = mvpp2_hr_timer_cb; + port_pcpu->timer_scheduled = false; + port_pcpu->dev = dev; + } + } + + features = NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM | + NETIF_F_TSO; + dev->features = features | NETIF_F_RXCSUM; + dev->hw_features |= features | NETIF_F_RXCSUM | NETIF_F_GRO | + NETIF_F_HW_VLAN_CTAG_FILTER; + + if (mvpp22_rss_is_supported(port)) { + dev->hw_features |= NETIF_F_RXHASH; + dev->features |= NETIF_F_NTUPLE; + } + + if (!port->priv->percpu_pools) + mvpp2_set_hw_csum(port, port->pool_long->id); + + dev->vlan_features |= features; + netif_set_tso_max_segs(dev, MVPP2_MAX_TSO_SEGS); + dev->priv_flags |= IFF_UNICAST_FLT; + + /* MTU range: 68 - 9704 */ + dev->min_mtu = ETH_MIN_MTU; + /* 9704 == 9728 - 20 and rounding to 8 */ + dev->max_mtu = MVPP2_BM_JUMBO_PKT_SIZE; + dev->dev.of_node = port_node; + + port->pcs_gmac.ops = &mvpp2_phylink_gmac_pcs_ops; + port->pcs_xlg.ops = &mvpp2_phylink_xlg_pcs_ops; + + if (!mvpp2_use_acpi_compat_mode(port_fwnode)) { + port->phylink_config.dev = &dev->dev; + port->phylink_config.type = PHYLINK_NETDEV; + port->phylink_config.mac_capabilities = + MAC_2500FD | MAC_1000FD | MAC_100 | MAC_10; + + if (port->priv->global_tx_fc) + port->phylink_config.mac_capabilities |= + MAC_SYM_PAUSE | MAC_ASYM_PAUSE; + + if (mvpp2_port_supports_xlg(port)) { + /* If a COMPHY is present, we can support any of + * the serdes modes and switch between them. + */ + if (comphy) { + __set_bit(PHY_INTERFACE_MODE_5GBASER, + port->phylink_config.supported_interfaces); + __set_bit(PHY_INTERFACE_MODE_10GBASER, + port->phylink_config.supported_interfaces); + __set_bit(PHY_INTERFACE_MODE_XAUI, + port->phylink_config.supported_interfaces); + } else if (phy_mode == PHY_INTERFACE_MODE_5GBASER) { + __set_bit(PHY_INTERFACE_MODE_5GBASER, + port->phylink_config.supported_interfaces); + } else if (phy_mode == PHY_INTERFACE_MODE_10GBASER) { + __set_bit(PHY_INTERFACE_MODE_10GBASER, + port->phylink_config.supported_interfaces); + } else if (phy_mode == PHY_INTERFACE_MODE_XAUI) { + __set_bit(PHY_INTERFACE_MODE_XAUI, + port->phylink_config.supported_interfaces); + } + + if (comphy) + port->phylink_config.mac_capabilities |= + MAC_10000FD | MAC_5000FD; + else if (phy_mode == PHY_INTERFACE_MODE_5GBASER) + port->phylink_config.mac_capabilities |= + MAC_5000FD; + else + port->phylink_config.mac_capabilities |= + MAC_10000FD; + } + + if (mvpp2_port_supports_rgmii(port)) + phy_interface_set_rgmii(port->phylink_config.supported_interfaces); + + if (comphy) { + /* If a COMPHY is present, we can support any of the + * serdes modes and switch between them. + */ + __set_bit(PHY_INTERFACE_MODE_SGMII, + port->phylink_config.supported_interfaces); + __set_bit(PHY_INTERFACE_MODE_1000BASEX, + port->phylink_config.supported_interfaces); + __set_bit(PHY_INTERFACE_MODE_2500BASEX, + port->phylink_config.supported_interfaces); + } else if (phy_mode == PHY_INTERFACE_MODE_2500BASEX) { + /* No COMPHY, with only 2500BASE-X mode supported */ + __set_bit(PHY_INTERFACE_MODE_2500BASEX, + port->phylink_config.supported_interfaces); + } else if (phy_mode == PHY_INTERFACE_MODE_1000BASEX || + phy_mode == PHY_INTERFACE_MODE_SGMII) { + /* No COMPHY, we can switch between 1000BASE-X and SGMII + */ + __set_bit(PHY_INTERFACE_MODE_1000BASEX, + port->phylink_config.supported_interfaces); + __set_bit(PHY_INTERFACE_MODE_SGMII, + port->phylink_config.supported_interfaces); + } + + phylink = phylink_create(&port->phylink_config, port_fwnode, + phy_mode, &mvpp2_phylink_ops); + if (IS_ERR(phylink)) { + err = PTR_ERR(phylink); + goto err_free_port_pcpu; + } + port->phylink = phylink; + } else { + dev_warn(&pdev->dev, "Use link irqs for port#%d. FW update required\n", port->id); + port->phylink = NULL; + } + + /* Cycle the comphy to power it down, saving 270mW per port - + * don't worry about an error powering it up. When the comphy + * driver does this, we can remove this code. + */ + if (port->comphy) { + err = mvpp22_comphy_init(port, port->phy_interface); + if (err == 0) + phy_power_off(port->comphy); + } + + err = register_netdev(dev); + if (err < 0) { + dev_err(&pdev->dev, "failed to register netdev\n"); + goto err_phylink; + } + netdev_info(dev, "Using %s mac address %pM\n", mac_from, dev->dev_addr); + + priv->port_list[priv->port_count++] = port; + + return 0; + +err_phylink: + if (port->phylink) + phylink_destroy(port->phylink); +err_free_port_pcpu: + free_percpu(port->pcpu); +err_free_txq_pcpu: + for (i = 0; i < port->ntxqs; i++) + free_percpu(port->txqs[i]->pcpu); +err_free_stats: + free_percpu(port->stats); +err_free_irq: + if (port->port_irq) + irq_dispose_mapping(port->port_irq); +err_deinit_qvecs: + mvpp2_queue_vectors_deinit(port); +err_free_netdev: + free_netdev(dev); + return err; +} + +/* Ports removal routine */ +static void mvpp2_port_remove(struct mvpp2_port *port) +{ + int i; + + unregister_netdev(port->dev); + if (port->phylink) + phylink_destroy(port->phylink); + free_percpu(port->pcpu); + free_percpu(port->stats); + for (i = 0; i < port->ntxqs; i++) + free_percpu(port->txqs[i]->pcpu); + mvpp2_queue_vectors_deinit(port); + if (port->port_irq) + irq_dispose_mapping(port->port_irq); + free_netdev(port->dev); +} + +/* Initialize decoding windows */ +static void mvpp2_conf_mbus_windows(const struct mbus_dram_target_info *dram, + struct mvpp2 *priv) +{ + u32 win_enable; + int i; + + for (i = 0; i < 6; i++) { + mvpp2_write(priv, MVPP2_WIN_BASE(i), 0); + mvpp2_write(priv, MVPP2_WIN_SIZE(i), 0); + + if (i < 4) + mvpp2_write(priv, MVPP2_WIN_REMAP(i), 0); + } + + win_enable = 0; + + for (i = 0; i < dram->num_cs; i++) { + const struct mbus_dram_window *cs = dram->cs + i; + + mvpp2_write(priv, MVPP2_WIN_BASE(i), + (cs->base & 0xffff0000) | (cs->mbus_attr << 8) | + dram->mbus_dram_target_id); + + mvpp2_write(priv, MVPP2_WIN_SIZE(i), + (cs->size - 1) & 0xffff0000); + + win_enable |= (1 << i); + } + + mvpp2_write(priv, MVPP2_BASE_ADDR_ENABLE, win_enable); +} + +/* Initialize Rx FIFO's */ +static void mvpp2_rx_fifo_init(struct mvpp2 *priv) +{ + int port; + + for (port = 0; port < MVPP2_MAX_PORTS; port++) { + mvpp2_write(priv, MVPP2_RX_DATA_FIFO_SIZE_REG(port), + MVPP2_RX_FIFO_PORT_DATA_SIZE_4KB); + mvpp2_write(priv, MVPP2_RX_ATTR_FIFO_SIZE_REG(port), + MVPP2_RX_FIFO_PORT_ATTR_SIZE_4KB); + } + + mvpp2_write(priv, MVPP2_RX_MIN_PKT_SIZE_REG, + MVPP2_RX_FIFO_PORT_MIN_PKT); + mvpp2_write(priv, MVPP2_RX_FIFO_INIT_REG, 0x1); +} + +static void mvpp22_rx_fifo_set_hw(struct mvpp2 *priv, int port, int data_size) +{ + int attr_size = MVPP2_RX_FIFO_PORT_ATTR_SIZE(data_size); + + mvpp2_write(priv, MVPP2_RX_DATA_FIFO_SIZE_REG(port), data_size); + mvpp2_write(priv, MVPP2_RX_ATTR_FIFO_SIZE_REG(port), attr_size); +} + +/* Initialize TX FIFO's: the total FIFO size is 48kB on PPv2.2 and PPv2.3. + * 4kB fixed space must be assigned for the loopback port. + * Redistribute remaining avialable 44kB space among all active ports. + * Guarantee minimum 32kB for 10G port and 8kB for port 1, capable of 2.5G + * SGMII link. + */ +static void mvpp22_rx_fifo_init(struct mvpp2 *priv) +{ + int remaining_ports_count; + unsigned long port_map; + int size_remainder; + int port, size; + + /* The loopback requires fixed 4kB of the FIFO space assignment. */ + mvpp22_rx_fifo_set_hw(priv, MVPP2_LOOPBACK_PORT_INDEX, + MVPP2_RX_FIFO_PORT_DATA_SIZE_4KB); + port_map = priv->port_map & ~BIT(MVPP2_LOOPBACK_PORT_INDEX); + + /* Set RX FIFO size to 0 for inactive ports. */ + for_each_clear_bit(port, &port_map, MVPP2_LOOPBACK_PORT_INDEX) + mvpp22_rx_fifo_set_hw(priv, port, 0); + + /* Assign remaining RX FIFO space among all active ports. */ + size_remainder = MVPP2_RX_FIFO_PORT_DATA_SIZE_44KB; + remaining_ports_count = hweight_long(port_map); + + for_each_set_bit(port, &port_map, MVPP2_LOOPBACK_PORT_INDEX) { + if (remaining_ports_count == 1) + size = size_remainder; + else if (port == 0) + size = max(size_remainder / remaining_ports_count, + MVPP2_RX_FIFO_PORT_DATA_SIZE_32KB); + else if (port == 1) + size = max(size_remainder / remaining_ports_count, + MVPP2_RX_FIFO_PORT_DATA_SIZE_8KB); + else + size = size_remainder / remaining_ports_count; + + size_remainder -= size; + remaining_ports_count--; + + mvpp22_rx_fifo_set_hw(priv, port, size); + } + + mvpp2_write(priv, MVPP2_RX_MIN_PKT_SIZE_REG, + MVPP2_RX_FIFO_PORT_MIN_PKT); + mvpp2_write(priv, MVPP2_RX_FIFO_INIT_REG, 0x1); +} + +/* Configure Rx FIFO Flow control thresholds */ +static void mvpp23_rx_fifo_fc_set_tresh(struct mvpp2 *priv) +{ + int port, val; + + /* Port 0: maximum speed -10Gb/s port + * required by spec RX FIFO threshold 9KB + * Port 1: maximum speed -5Gb/s port + * required by spec RX FIFO threshold 4KB + * Port 2: maximum speed -1Gb/s port + * required by spec RX FIFO threshold 2KB + */ + + /* Without loopback port */ + for (port = 0; port < (MVPP2_MAX_PORTS - 1); port++) { + if (port == 0) { + val = (MVPP23_PORT0_FIFO_TRSH / MVPP2_RX_FC_TRSH_UNIT) + << MVPP2_RX_FC_TRSH_OFFS; + val &= MVPP2_RX_FC_TRSH_MASK; + mvpp2_write(priv, MVPP2_RX_FC_REG(port), val); + } else if (port == 1) { + val = (MVPP23_PORT1_FIFO_TRSH / MVPP2_RX_FC_TRSH_UNIT) + << MVPP2_RX_FC_TRSH_OFFS; + val &= MVPP2_RX_FC_TRSH_MASK; + mvpp2_write(priv, MVPP2_RX_FC_REG(port), val); + } else { + val = (MVPP23_PORT2_FIFO_TRSH / MVPP2_RX_FC_TRSH_UNIT) + << MVPP2_RX_FC_TRSH_OFFS; + val &= MVPP2_RX_FC_TRSH_MASK; + mvpp2_write(priv, MVPP2_RX_FC_REG(port), val); + } + } +} + +/* Configure Rx FIFO Flow control thresholds */ +void mvpp23_rx_fifo_fc_en(struct mvpp2 *priv, int port, bool en) +{ + int val; + + val = mvpp2_read(priv, MVPP2_RX_FC_REG(port)); + + if (en) + val |= MVPP2_RX_FC_EN; + else + val &= ~MVPP2_RX_FC_EN; + + mvpp2_write(priv, MVPP2_RX_FC_REG(port), val); +} + +static void mvpp22_tx_fifo_set_hw(struct mvpp2 *priv, int port, int size) +{ + int threshold = MVPP2_TX_FIFO_THRESHOLD(size); + + mvpp2_write(priv, MVPP22_TX_FIFO_SIZE_REG(port), size); + mvpp2_write(priv, MVPP22_TX_FIFO_THRESH_REG(port), threshold); +} + +/* Initialize TX FIFO's: the total FIFO size is 19kB on PPv2.2 and PPv2.3. + * 1kB fixed space must be assigned for the loopback port. + * Redistribute remaining avialable 18kB space among all active ports. + * The 10G interface should use 10kB (which is maximum possible size + * per single port). + */ +static void mvpp22_tx_fifo_init(struct mvpp2 *priv) +{ + int remaining_ports_count; + unsigned long port_map; + int size_remainder; + int port, size; + + /* The loopback requires fixed 1kB of the FIFO space assignment. */ + mvpp22_tx_fifo_set_hw(priv, MVPP2_LOOPBACK_PORT_INDEX, + MVPP22_TX_FIFO_DATA_SIZE_1KB); + port_map = priv->port_map & ~BIT(MVPP2_LOOPBACK_PORT_INDEX); + + /* Set TX FIFO size to 0 for inactive ports. */ + for_each_clear_bit(port, &port_map, MVPP2_LOOPBACK_PORT_INDEX) + mvpp22_tx_fifo_set_hw(priv, port, 0); + + /* Assign remaining TX FIFO space among all active ports. */ + size_remainder = MVPP22_TX_FIFO_DATA_SIZE_18KB; + remaining_ports_count = hweight_long(port_map); + + for_each_set_bit(port, &port_map, MVPP2_LOOPBACK_PORT_INDEX) { + if (remaining_ports_count == 1) + size = min(size_remainder, + MVPP22_TX_FIFO_DATA_SIZE_10KB); + else if (port == 0) + size = MVPP22_TX_FIFO_DATA_SIZE_10KB; + else + size = size_remainder / remaining_ports_count; + + size_remainder -= size; + remaining_ports_count--; + + mvpp22_tx_fifo_set_hw(priv, port, size); + } +} + +static void mvpp2_axi_init(struct mvpp2 *priv) +{ + u32 val, rdval, wrval; + + mvpp2_write(priv, MVPP22_BM_ADDR_HIGH_RLS_REG, 0x0); + + /* AXI Bridge Configuration */ + + rdval = MVPP22_AXI_CODE_CACHE_RD_CACHE + << MVPP22_AXI_ATTR_CACHE_OFFS; + rdval |= MVPP22_AXI_CODE_DOMAIN_OUTER_DOM + << MVPP22_AXI_ATTR_DOMAIN_OFFS; + + wrval = MVPP22_AXI_CODE_CACHE_WR_CACHE + << MVPP22_AXI_ATTR_CACHE_OFFS; + wrval |= MVPP22_AXI_CODE_DOMAIN_OUTER_DOM + << MVPP22_AXI_ATTR_DOMAIN_OFFS; + + /* BM */ + mvpp2_write(priv, MVPP22_AXI_BM_WR_ATTR_REG, wrval); + mvpp2_write(priv, MVPP22_AXI_BM_RD_ATTR_REG, rdval); + + /* Descriptors */ + mvpp2_write(priv, MVPP22_AXI_AGGRQ_DESCR_RD_ATTR_REG, rdval); + mvpp2_write(priv, MVPP22_AXI_TXQ_DESCR_WR_ATTR_REG, wrval); + mvpp2_write(priv, MVPP22_AXI_TXQ_DESCR_RD_ATTR_REG, rdval); + mvpp2_write(priv, MVPP22_AXI_RXQ_DESCR_WR_ATTR_REG, wrval); + + /* Buffer Data */ + mvpp2_write(priv, MVPP22_AXI_TX_DATA_RD_ATTR_REG, rdval); + mvpp2_write(priv, MVPP22_AXI_RX_DATA_WR_ATTR_REG, wrval); + + val = MVPP22_AXI_CODE_CACHE_NON_CACHE + << MVPP22_AXI_CODE_CACHE_OFFS; + val |= MVPP22_AXI_CODE_DOMAIN_SYSTEM + << MVPP22_AXI_CODE_DOMAIN_OFFS; + mvpp2_write(priv, MVPP22_AXI_RD_NORMAL_CODE_REG, val); + mvpp2_write(priv, MVPP22_AXI_WR_NORMAL_CODE_REG, val); + + val = MVPP22_AXI_CODE_CACHE_RD_CACHE + << MVPP22_AXI_CODE_CACHE_OFFS; + val |= MVPP22_AXI_CODE_DOMAIN_OUTER_DOM + << MVPP22_AXI_CODE_DOMAIN_OFFS; + + mvpp2_write(priv, MVPP22_AXI_RD_SNOOP_CODE_REG, val); + + val = MVPP22_AXI_CODE_CACHE_WR_CACHE + << MVPP22_AXI_CODE_CACHE_OFFS; + val |= MVPP22_AXI_CODE_DOMAIN_OUTER_DOM + << MVPP22_AXI_CODE_DOMAIN_OFFS; + + mvpp2_write(priv, MVPP22_AXI_WR_SNOOP_CODE_REG, val); +} + +/* Initialize network controller common part HW */ +static int mvpp2_init(struct platform_device *pdev, struct mvpp2 *priv) +{ + const struct mbus_dram_target_info *dram_target_info; + int err, i; + u32 val; + + /* MBUS windows configuration */ + dram_target_info = mv_mbus_dram_info(); + if (dram_target_info) + mvpp2_conf_mbus_windows(dram_target_info, priv); + + if (priv->hw_version >= MVPP22) + mvpp2_axi_init(priv); + + /* Disable HW PHY polling */ + if (priv->hw_version == MVPP21) { + val = readl(priv->lms_base + MVPP2_PHY_AN_CFG0_REG); + val |= MVPP2_PHY_AN_STOP_SMI0_MASK; + writel(val, priv->lms_base + MVPP2_PHY_AN_CFG0_REG); + } else { + val = readl(priv->iface_base + MVPP22_SMI_MISC_CFG_REG); + val &= ~MVPP22_SMI_POLLING_EN; + writel(val, priv->iface_base + MVPP22_SMI_MISC_CFG_REG); + } + + /* Allocate and initialize aggregated TXQs */ + priv->aggr_txqs = devm_kcalloc(&pdev->dev, MVPP2_MAX_THREADS, + sizeof(*priv->aggr_txqs), + GFP_KERNEL); + if (!priv->aggr_txqs) + return -ENOMEM; + + for (i = 0; i < MVPP2_MAX_THREADS; i++) { + priv->aggr_txqs[i].id = i; + priv->aggr_txqs[i].size = MVPP2_AGGR_TXQ_SIZE; + err = mvpp2_aggr_txq_init(pdev, &priv->aggr_txqs[i], i, priv); + if (err < 0) + return err; + } + + /* Fifo Init */ + if (priv->hw_version == MVPP21) { + mvpp2_rx_fifo_init(priv); + } else { + mvpp22_rx_fifo_init(priv); + mvpp22_tx_fifo_init(priv); + if (priv->hw_version == MVPP23) + mvpp23_rx_fifo_fc_set_tresh(priv); + } + + if (priv->hw_version == MVPP21) + writel(MVPP2_EXT_GLOBAL_CTRL_DEFAULT, + priv->lms_base + MVPP2_MNG_EXTENDED_GLOBAL_CTRL_REG); + + /* Allow cache snoop when transmiting packets */ + mvpp2_write(priv, MVPP2_TX_SNOOP_REG, 0x1); + + /* Buffer Manager initialization */ + err = mvpp2_bm_init(&pdev->dev, priv); + if (err < 0) + return err; + + /* Parser default initialization */ + err = mvpp2_prs_default_init(pdev, priv); + if (err < 0) + return err; + + /* Classifier default initialization */ + mvpp2_cls_init(priv); + + return 0; +} + +static int mvpp2_get_sram(struct platform_device *pdev, + struct mvpp2 *priv) +{ + struct resource *res; + void __iomem *base; + + res = platform_get_resource(pdev, IORESOURCE_MEM, 2); + if (!res) { + if (has_acpi_companion(&pdev->dev)) + dev_warn(&pdev->dev, "ACPI is too old, Flow control not supported\n"); + else + dev_warn(&pdev->dev, "DT is too old, Flow control not supported\n"); + return 0; + } + + base = devm_ioremap_resource(&pdev->dev, res); + if (IS_ERR(base)) + return PTR_ERR(base); + + priv->cm3_base = base; + return 0; +} + +static int mvpp2_probe(struct platform_device *pdev) +{ + struct fwnode_handle *fwnode = pdev->dev.fwnode; + struct fwnode_handle *port_fwnode; + struct mvpp2 *priv; + struct resource *res; + void __iomem *base; + int i, shared; + int err; + + priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL); + if (!priv) + return -ENOMEM; + + priv->hw_version = (unsigned long)device_get_match_data(&pdev->dev); + + /* multi queue mode isn't supported on PPV2.1, fallback to single + * mode + */ + if (priv->hw_version == MVPP21) + queue_mode = MVPP2_QDIST_SINGLE_MODE; + + base = devm_platform_ioremap_resource(pdev, 0); + if (IS_ERR(base)) + return PTR_ERR(base); + + if (priv->hw_version == MVPP21) { + priv->lms_base = devm_platform_ioremap_resource(pdev, 1); + if (IS_ERR(priv->lms_base)) + return PTR_ERR(priv->lms_base); + } else { + res = platform_get_resource(pdev, IORESOURCE_MEM, 1); + if (!res) { + dev_err(&pdev->dev, "Invalid resource\n"); + return -EINVAL; + } + if (has_acpi_companion(&pdev->dev)) { + /* In case the MDIO memory region is declared in + * the ACPI, it can already appear as 'in-use' + * in the OS. Because it is overlapped by second + * region of the network controller, make + * sure it is released, before requesting it again. + * The care is taken by mvpp2 driver to avoid + * concurrent access to this memory region. + */ + release_resource(res); + } + priv->iface_base = devm_ioremap_resource(&pdev->dev, res); + if (IS_ERR(priv->iface_base)) + return PTR_ERR(priv->iface_base); + + /* Map CM3 SRAM */ + err = mvpp2_get_sram(pdev, priv); + if (err) + dev_warn(&pdev->dev, "Fail to alloc CM3 SRAM\n"); + + /* Enable global Flow Control only if handler to SRAM not NULL */ + if (priv->cm3_base) + priv->global_tx_fc = true; + } + + if (priv->hw_version >= MVPP22 && dev_of_node(&pdev->dev)) { + priv->sysctrl_base = + syscon_regmap_lookup_by_phandle(pdev->dev.of_node, + "marvell,system-controller"); + if (IS_ERR(priv->sysctrl_base)) + /* The system controller regmap is optional for dt + * compatibility reasons. When not provided, the + * configuration of the GoP relies on the + * firmware/bootloader. + */ + priv->sysctrl_base = NULL; + } + + if (priv->hw_version >= MVPP22 && + mvpp2_get_nrxqs(priv) * 2 <= MVPP2_BM_MAX_POOLS) + priv->percpu_pools = 1; + + mvpp2_setup_bm_pool(); + + + priv->nthreads = min_t(unsigned int, num_present_cpus(), + MVPP2_MAX_THREADS); + + shared = num_present_cpus() - priv->nthreads; + if (shared > 0) + bitmap_set(&priv->lock_map, 0, + min_t(int, shared, MVPP2_MAX_THREADS)); + + for (i = 0; i < MVPP2_MAX_THREADS; i++) { + u32 addr_space_sz; + + addr_space_sz = (priv->hw_version == MVPP21 ? + MVPP21_ADDR_SPACE_SZ : MVPP22_ADDR_SPACE_SZ); + priv->swth_base[i] = base + i * addr_space_sz; + } + + if (priv->hw_version == MVPP21) + priv->max_port_rxqs = 8; + else + priv->max_port_rxqs = 32; + + if (dev_of_node(&pdev->dev)) { + priv->pp_clk = devm_clk_get(&pdev->dev, "pp_clk"); + if (IS_ERR(priv->pp_clk)) + return PTR_ERR(priv->pp_clk); + err = clk_prepare_enable(priv->pp_clk); + if (err < 0) + return err; + + priv->gop_clk = devm_clk_get(&pdev->dev, "gop_clk"); + if (IS_ERR(priv->gop_clk)) { + err = PTR_ERR(priv->gop_clk); + goto err_pp_clk; + } + err = clk_prepare_enable(priv->gop_clk); + if (err < 0) + goto err_pp_clk; + + if (priv->hw_version >= MVPP22) { + priv->mg_clk = devm_clk_get(&pdev->dev, "mg_clk"); + if (IS_ERR(priv->mg_clk)) { + err = PTR_ERR(priv->mg_clk); + goto err_gop_clk; + } + + err = clk_prepare_enable(priv->mg_clk); + if (err < 0) + goto err_gop_clk; + + priv->mg_core_clk = devm_clk_get_optional(&pdev->dev, "mg_core_clk"); + if (IS_ERR(priv->mg_core_clk)) { + err = PTR_ERR(priv->mg_core_clk); + goto err_mg_clk; + } + + err = clk_prepare_enable(priv->mg_core_clk); + if (err < 0) + goto err_mg_clk; + } + + priv->axi_clk = devm_clk_get_optional(&pdev->dev, "axi_clk"); + if (IS_ERR(priv->axi_clk)) { + err = PTR_ERR(priv->axi_clk); + goto err_mg_core_clk; + } + + err = clk_prepare_enable(priv->axi_clk); + if (err < 0) + goto err_mg_core_clk; + + /* Get system's tclk rate */ + priv->tclk = clk_get_rate(priv->pp_clk); + } else { + err = device_property_read_u32(&pdev->dev, "clock-frequency", &priv->tclk); + if (err) { + dev_err(&pdev->dev, "missing clock-frequency value\n"); + return err; + } + } + + if (priv->hw_version >= MVPP22) { + err = dma_set_mask(&pdev->dev, MVPP2_DESC_DMA_MASK); + if (err) + goto err_axi_clk; + /* Sadly, the BM pools all share the same register to + * store the high 32 bits of their address. So they + * must all have the same high 32 bits, which forces + * us to restrict coherent memory to DMA_BIT_MASK(32). + */ + err = dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(32)); + if (err) + goto err_axi_clk; + } + + /* Map DTS-active ports. Should be done before FIFO mvpp2_init */ + fwnode_for_each_available_child_node(fwnode, port_fwnode) { + if (!fwnode_property_read_u32(port_fwnode, "port-id", &i)) + priv->port_map |= BIT(i); + } + + if (mvpp2_read(priv, MVPP2_VER_ID_REG) == MVPP2_VER_PP23) + priv->hw_version = MVPP23; + + /* Init mss lock */ + spin_lock_init(&priv->mss_spinlock); + + /* Initialize network controller */ + err = mvpp2_init(pdev, priv); + if (err < 0) { + dev_err(&pdev->dev, "failed to initialize controller\n"); + goto err_axi_clk; + } + + err = mvpp22_tai_probe(&pdev->dev, priv); + if (err < 0) + goto err_axi_clk; + + /* Initialize ports */ + fwnode_for_each_available_child_node(fwnode, port_fwnode) { + err = mvpp2_port_probe(pdev, port_fwnode, priv); + if (err < 0) + goto err_port_probe; + } + + if (priv->port_count == 0) { + dev_err(&pdev->dev, "no ports enabled\n"); + err = -ENODEV; + goto err_axi_clk; + } + + /* Statistics must be gathered regularly because some of them (like + * packets counters) are 32-bit registers and could overflow quite + * quickly. For instance, a 10Gb link used at full bandwidth with the + * smallest packets (64B) will overflow a 32-bit counter in less than + * 30 seconds. Then, use a workqueue to fill 64-bit counters. + */ + snprintf(priv->queue_name, sizeof(priv->queue_name), + "stats-wq-%s%s", netdev_name(priv->port_list[0]->dev), + priv->port_count > 1 ? "+" : ""); + priv->stats_queue = create_singlethread_workqueue(priv->queue_name); + if (!priv->stats_queue) { + err = -ENOMEM; + goto err_port_probe; + } + + if (priv->global_tx_fc && priv->hw_version >= MVPP22) { + err = mvpp2_enable_global_fc(priv); + if (err) + dev_warn(&pdev->dev, "Minimum of CM3 firmware 18.09 and chip revision B0 required for flow control\n"); + } + + mvpp2_dbgfs_init(priv, pdev->name); + + platform_set_drvdata(pdev, priv); + return 0; + +err_port_probe: + fwnode_handle_put(port_fwnode); + + i = 0; + fwnode_for_each_available_child_node(fwnode, port_fwnode) { + if (priv->port_list[i]) + mvpp2_port_remove(priv->port_list[i]); + i++; + } +err_axi_clk: + clk_disable_unprepare(priv->axi_clk); +err_mg_core_clk: + clk_disable_unprepare(priv->mg_core_clk); +err_mg_clk: + clk_disable_unprepare(priv->mg_clk); +err_gop_clk: + clk_disable_unprepare(priv->gop_clk); +err_pp_clk: + clk_disable_unprepare(priv->pp_clk); + return err; +} + +static int mvpp2_remove(struct platform_device *pdev) +{ + struct mvpp2 *priv = platform_get_drvdata(pdev); + struct fwnode_handle *fwnode = pdev->dev.fwnode; + int i = 0, poolnum = MVPP2_BM_POOLS_NUM; + struct fwnode_handle *port_fwnode; + + mvpp2_dbgfs_cleanup(priv); + + fwnode_for_each_available_child_node(fwnode, port_fwnode) { + if (priv->port_list[i]) { + mutex_destroy(&priv->port_list[i]->gather_stats_lock); + mvpp2_port_remove(priv->port_list[i]); + } + i++; + } + + destroy_workqueue(priv->stats_queue); + + if (priv->percpu_pools) + poolnum = mvpp2_get_nrxqs(priv) * 2; + + for (i = 0; i < poolnum; i++) { + struct mvpp2_bm_pool *bm_pool = &priv->bm_pools[i]; + + mvpp2_bm_pool_destroy(&pdev->dev, priv, bm_pool); + } + + for (i = 0; i < MVPP2_MAX_THREADS; i++) { + struct mvpp2_tx_queue *aggr_txq = &priv->aggr_txqs[i]; + + dma_free_coherent(&pdev->dev, + MVPP2_AGGR_TXQ_SIZE * MVPP2_DESC_ALIGNED_SIZE, + aggr_txq->descs, + aggr_txq->descs_dma); + } + + if (is_acpi_node(port_fwnode)) + return 0; + + clk_disable_unprepare(priv->axi_clk); + clk_disable_unprepare(priv->mg_core_clk); + clk_disable_unprepare(priv->mg_clk); + clk_disable_unprepare(priv->pp_clk); + clk_disable_unprepare(priv->gop_clk); + + return 0; +} + +static const struct of_device_id mvpp2_match[] = { + { + .compatible = "marvell,armada-375-pp2", + .data = (void *)MVPP21, + }, + { + .compatible = "marvell,armada-7k-pp22", + .data = (void *)MVPP22, + }, + { } +}; +MODULE_DEVICE_TABLE(of, mvpp2_match); + +#ifdef CONFIG_ACPI +static const struct acpi_device_id mvpp2_acpi_match[] = { + { "MRVL0110", MVPP22 }, + { }, +}; +MODULE_DEVICE_TABLE(acpi, mvpp2_acpi_match); +#endif + +static struct platform_driver mvpp2_driver = { + .probe = mvpp2_probe, + .remove = mvpp2_remove, + .driver = { + .name = MVPP2_DRIVER_NAME, + .of_match_table = mvpp2_match, + .acpi_match_table = ACPI_PTR(mvpp2_acpi_match), + }, +}; + +static int __init mvpp2_driver_init(void) +{ + return platform_driver_register(&mvpp2_driver); +} +module_init(mvpp2_driver_init); + +static void __exit mvpp2_driver_exit(void) +{ + platform_driver_unregister(&mvpp2_driver); + mvpp2_dbgfs_exit(); +} +module_exit(mvpp2_driver_exit); + +MODULE_DESCRIPTION("Marvell PPv2 Ethernet Driver - www.marvell.com"); +MODULE_AUTHOR("Marcin Wojtas <mw@semihalf.com>"); +MODULE_LICENSE("GPL v2"); diff --git a/drivers/net/ethernet/marvell/mvpp2/mvpp2_prs.c b/drivers/net/ethernet/marvell/mvpp2/mvpp2_prs.c new file mode 100644 index 000000000..9af22f497 --- /dev/null +++ b/drivers/net/ethernet/marvell/mvpp2/mvpp2_prs.c @@ -0,0 +1,2519 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Header Parser helpers for Marvell PPv2 Network Controller + * + * Copyright (C) 2014 Marvell + * + * Marcin Wojtas <mw@semihalf.com> + */ + +#include <linux/kernel.h> +#include <linux/netdevice.h> +#include <linux/etherdevice.h> +#include <linux/platform_device.h> +#include <uapi/linux/ppp_defs.h> +#include <net/ip.h> +#include <net/ipv6.h> + +#include "mvpp2.h" +#include "mvpp2_prs.h" + +/* Update parser tcam and sram hw entries */ +static int mvpp2_prs_hw_write(struct mvpp2 *priv, struct mvpp2_prs_entry *pe) +{ + int i; + + if (pe->index > MVPP2_PRS_TCAM_SRAM_SIZE - 1) + return -EINVAL; + + /* Clear entry invalidation bit */ + pe->tcam[MVPP2_PRS_TCAM_INV_WORD] &= ~MVPP2_PRS_TCAM_INV_MASK; + + /* Write sram index - indirect access */ + mvpp2_write(priv, MVPP2_PRS_SRAM_IDX_REG, pe->index); + for (i = 0; i < MVPP2_PRS_SRAM_WORDS; i++) + mvpp2_write(priv, MVPP2_PRS_SRAM_DATA_REG(i), pe->sram[i]); + + /* Write tcam index - indirect access */ + mvpp2_write(priv, MVPP2_PRS_TCAM_IDX_REG, pe->index); + for (i = 0; i < MVPP2_PRS_TCAM_WORDS; i++) + mvpp2_write(priv, MVPP2_PRS_TCAM_DATA_REG(i), pe->tcam[i]); + + return 0; +} + +/* Initialize tcam entry from hw */ +int mvpp2_prs_init_from_hw(struct mvpp2 *priv, struct mvpp2_prs_entry *pe, + int tid) +{ + int i; + + if (tid > MVPP2_PRS_TCAM_SRAM_SIZE - 1) + return -EINVAL; + + memset(pe, 0, sizeof(*pe)); + pe->index = tid; + + /* Write tcam index - indirect access */ + mvpp2_write(priv, MVPP2_PRS_TCAM_IDX_REG, pe->index); + + pe->tcam[MVPP2_PRS_TCAM_INV_WORD] = mvpp2_read(priv, + MVPP2_PRS_TCAM_DATA_REG(MVPP2_PRS_TCAM_INV_WORD)); + if (pe->tcam[MVPP2_PRS_TCAM_INV_WORD] & MVPP2_PRS_TCAM_INV_MASK) + return MVPP2_PRS_TCAM_ENTRY_INVALID; + + for (i = 0; i < MVPP2_PRS_TCAM_WORDS; i++) + pe->tcam[i] = mvpp2_read(priv, MVPP2_PRS_TCAM_DATA_REG(i)); + + /* Write sram index - indirect access */ + mvpp2_write(priv, MVPP2_PRS_SRAM_IDX_REG, pe->index); + for (i = 0; i < MVPP2_PRS_SRAM_WORDS; i++) + pe->sram[i] = mvpp2_read(priv, MVPP2_PRS_SRAM_DATA_REG(i)); + + return 0; +} + +/* Invalidate tcam hw entry */ +static void mvpp2_prs_hw_inv(struct mvpp2 *priv, int index) +{ + /* Write index - indirect access */ + mvpp2_write(priv, MVPP2_PRS_TCAM_IDX_REG, index); + mvpp2_write(priv, MVPP2_PRS_TCAM_DATA_REG(MVPP2_PRS_TCAM_INV_WORD), + MVPP2_PRS_TCAM_INV_MASK); +} + +/* Enable shadow table entry and set its lookup ID */ +static void mvpp2_prs_shadow_set(struct mvpp2 *priv, int index, int lu) +{ + priv->prs_shadow[index].valid = true; + priv->prs_shadow[index].lu = lu; +} + +/* Update ri fields in shadow table entry */ +static void mvpp2_prs_shadow_ri_set(struct mvpp2 *priv, int index, + unsigned int ri, unsigned int ri_mask) +{ + priv->prs_shadow[index].ri_mask = ri_mask; + priv->prs_shadow[index].ri = ri; +} + +/* Update lookup field in tcam sw entry */ +static void mvpp2_prs_tcam_lu_set(struct mvpp2_prs_entry *pe, unsigned int lu) +{ + pe->tcam[MVPP2_PRS_TCAM_LU_WORD] &= ~MVPP2_PRS_TCAM_LU(MVPP2_PRS_LU_MASK); + pe->tcam[MVPP2_PRS_TCAM_LU_WORD] &= ~MVPP2_PRS_TCAM_LU_EN(MVPP2_PRS_LU_MASK); + pe->tcam[MVPP2_PRS_TCAM_LU_WORD] |= MVPP2_PRS_TCAM_LU(lu & MVPP2_PRS_LU_MASK); + pe->tcam[MVPP2_PRS_TCAM_LU_WORD] |= MVPP2_PRS_TCAM_LU_EN(MVPP2_PRS_LU_MASK); +} + +/* Update mask for single port in tcam sw entry */ +static void mvpp2_prs_tcam_port_set(struct mvpp2_prs_entry *pe, + unsigned int port, bool add) +{ + if (add) + pe->tcam[MVPP2_PRS_TCAM_PORT_WORD] &= ~MVPP2_PRS_TCAM_PORT_EN(BIT(port)); + else + pe->tcam[MVPP2_PRS_TCAM_PORT_WORD] |= MVPP2_PRS_TCAM_PORT_EN(BIT(port)); +} + +/* Update port map in tcam sw entry */ +static void mvpp2_prs_tcam_port_map_set(struct mvpp2_prs_entry *pe, + unsigned int ports) +{ + pe->tcam[MVPP2_PRS_TCAM_PORT_WORD] &= ~MVPP2_PRS_TCAM_PORT(MVPP2_PRS_PORT_MASK); + pe->tcam[MVPP2_PRS_TCAM_PORT_WORD] &= ~MVPP2_PRS_TCAM_PORT_EN(MVPP2_PRS_PORT_MASK); + pe->tcam[MVPP2_PRS_TCAM_PORT_WORD] |= MVPP2_PRS_TCAM_PORT_EN(~ports & MVPP2_PRS_PORT_MASK); +} + +/* Obtain port map from tcam sw entry */ +unsigned int mvpp2_prs_tcam_port_map_get(struct mvpp2_prs_entry *pe) +{ + return (~pe->tcam[MVPP2_PRS_TCAM_PORT_WORD] >> 24) & MVPP2_PRS_PORT_MASK; +} + +/* Set byte of data and its enable bits in tcam sw entry */ +static void mvpp2_prs_tcam_data_byte_set(struct mvpp2_prs_entry *pe, + unsigned int offs, unsigned char byte, + unsigned char enable) +{ + int pos = MVPP2_PRS_BYTE_IN_WORD(offs) * BITS_PER_BYTE; + + pe->tcam[MVPP2_PRS_BYTE_TO_WORD(offs)] &= ~(0xff << pos); + pe->tcam[MVPP2_PRS_BYTE_TO_WORD(offs)] &= ~(MVPP2_PRS_TCAM_EN(0xff) << pos); + pe->tcam[MVPP2_PRS_BYTE_TO_WORD(offs)] |= byte << pos; + pe->tcam[MVPP2_PRS_BYTE_TO_WORD(offs)] |= MVPP2_PRS_TCAM_EN(enable << pos); +} + +/* Get byte of data and its enable bits from tcam sw entry */ +void mvpp2_prs_tcam_data_byte_get(struct mvpp2_prs_entry *pe, + unsigned int offs, unsigned char *byte, + unsigned char *enable) +{ + int pos = MVPP2_PRS_BYTE_IN_WORD(offs) * BITS_PER_BYTE; + + *byte = (pe->tcam[MVPP2_PRS_BYTE_TO_WORD(offs)] >> pos) & 0xff; + *enable = (pe->tcam[MVPP2_PRS_BYTE_TO_WORD(offs)] >> (pos + 16)) & 0xff; +} + +/* Compare tcam data bytes with a pattern */ +static bool mvpp2_prs_tcam_data_cmp(struct mvpp2_prs_entry *pe, int offs, + u16 data) +{ + u16 tcam_data; + + tcam_data = pe->tcam[MVPP2_PRS_BYTE_TO_WORD(offs)] & 0xffff; + return tcam_data == data; +} + +/* Update ai bits in tcam sw entry */ +static void mvpp2_prs_tcam_ai_update(struct mvpp2_prs_entry *pe, + unsigned int bits, unsigned int enable) +{ + int i; + + for (i = 0; i < MVPP2_PRS_AI_BITS; i++) { + if (!(enable & BIT(i))) + continue; + + if (bits & BIT(i)) + pe->tcam[MVPP2_PRS_TCAM_AI_WORD] |= BIT(i); + else + pe->tcam[MVPP2_PRS_TCAM_AI_WORD] &= ~BIT(i); + } + + pe->tcam[MVPP2_PRS_TCAM_AI_WORD] |= MVPP2_PRS_TCAM_AI_EN(enable); +} + +/* Get ai bits from tcam sw entry */ +static int mvpp2_prs_tcam_ai_get(struct mvpp2_prs_entry *pe) +{ + return pe->tcam[MVPP2_PRS_TCAM_AI_WORD] & MVPP2_PRS_AI_MASK; +} + +/* Set ethertype in tcam sw entry */ +static void mvpp2_prs_match_etype(struct mvpp2_prs_entry *pe, int offset, + unsigned short ethertype) +{ + mvpp2_prs_tcam_data_byte_set(pe, offset + 0, ethertype >> 8, 0xff); + mvpp2_prs_tcam_data_byte_set(pe, offset + 1, ethertype & 0xff, 0xff); +} + +/* Set vid in tcam sw entry */ +static void mvpp2_prs_match_vid(struct mvpp2_prs_entry *pe, int offset, + unsigned short vid) +{ + mvpp2_prs_tcam_data_byte_set(pe, offset + 0, (vid & 0xf00) >> 8, 0xf); + mvpp2_prs_tcam_data_byte_set(pe, offset + 1, vid & 0xff, 0xff); +} + +/* Set bits in sram sw entry */ +static void mvpp2_prs_sram_bits_set(struct mvpp2_prs_entry *pe, int bit_num, + u32 val) +{ + pe->sram[MVPP2_BIT_TO_WORD(bit_num)] |= (val << (MVPP2_BIT_IN_WORD(bit_num))); +} + +/* Clear bits in sram sw entry */ +static void mvpp2_prs_sram_bits_clear(struct mvpp2_prs_entry *pe, int bit_num, + u32 val) +{ + pe->sram[MVPP2_BIT_TO_WORD(bit_num)] &= ~(val << (MVPP2_BIT_IN_WORD(bit_num))); +} + +/* Update ri bits in sram sw entry */ +static void mvpp2_prs_sram_ri_update(struct mvpp2_prs_entry *pe, + unsigned int bits, unsigned int mask) +{ + unsigned int i; + + for (i = 0; i < MVPP2_PRS_SRAM_RI_CTRL_BITS; i++) { + if (!(mask & BIT(i))) + continue; + + if (bits & BIT(i)) + mvpp2_prs_sram_bits_set(pe, MVPP2_PRS_SRAM_RI_OFFS + i, + 1); + else + mvpp2_prs_sram_bits_clear(pe, + MVPP2_PRS_SRAM_RI_OFFS + i, + 1); + + mvpp2_prs_sram_bits_set(pe, MVPP2_PRS_SRAM_RI_CTRL_OFFS + i, 1); + } +} + +/* Obtain ri bits from sram sw entry */ +static int mvpp2_prs_sram_ri_get(struct mvpp2_prs_entry *pe) +{ + return pe->sram[MVPP2_PRS_SRAM_RI_WORD]; +} + +/* Update ai bits in sram sw entry */ +static void mvpp2_prs_sram_ai_update(struct mvpp2_prs_entry *pe, + unsigned int bits, unsigned int mask) +{ + unsigned int i; + + for (i = 0; i < MVPP2_PRS_SRAM_AI_CTRL_BITS; i++) { + if (!(mask & BIT(i))) + continue; + + if (bits & BIT(i)) + mvpp2_prs_sram_bits_set(pe, MVPP2_PRS_SRAM_AI_OFFS + i, + 1); + else + mvpp2_prs_sram_bits_clear(pe, + MVPP2_PRS_SRAM_AI_OFFS + i, + 1); + + mvpp2_prs_sram_bits_set(pe, MVPP2_PRS_SRAM_AI_CTRL_OFFS + i, 1); + } +} + +/* Read ai bits from sram sw entry */ +static int mvpp2_prs_sram_ai_get(struct mvpp2_prs_entry *pe) +{ + u8 bits; + /* ai is stored on bits 90->97; so it spreads across two u32 */ + int ai_off = MVPP2_BIT_TO_WORD(MVPP2_PRS_SRAM_AI_OFFS); + int ai_shift = MVPP2_BIT_IN_WORD(MVPP2_PRS_SRAM_AI_OFFS); + + bits = (pe->sram[ai_off] >> ai_shift) | + (pe->sram[ai_off + 1] << (32 - ai_shift)); + + return bits; +} + +/* In sram sw entry set lookup ID field of the tcam key to be used in the next + * lookup interation + */ +static void mvpp2_prs_sram_next_lu_set(struct mvpp2_prs_entry *pe, + unsigned int lu) +{ + int sram_next_off = MVPP2_PRS_SRAM_NEXT_LU_OFFS; + + mvpp2_prs_sram_bits_clear(pe, sram_next_off, + MVPP2_PRS_SRAM_NEXT_LU_MASK); + mvpp2_prs_sram_bits_set(pe, sram_next_off, lu); +} + +/* In the sram sw entry set sign and value of the next lookup offset + * and the offset value generated to the classifier + */ +static void mvpp2_prs_sram_shift_set(struct mvpp2_prs_entry *pe, int shift, + unsigned int op) +{ + /* Set sign */ + if (shift < 0) { + mvpp2_prs_sram_bits_set(pe, MVPP2_PRS_SRAM_SHIFT_SIGN_BIT, 1); + shift = 0 - shift; + } else { + mvpp2_prs_sram_bits_clear(pe, MVPP2_PRS_SRAM_SHIFT_SIGN_BIT, 1); + } + + /* Set value */ + pe->sram[MVPP2_BIT_TO_WORD(MVPP2_PRS_SRAM_SHIFT_OFFS)] |= + shift & MVPP2_PRS_SRAM_SHIFT_MASK; + + /* Reset and set operation */ + mvpp2_prs_sram_bits_clear(pe, MVPP2_PRS_SRAM_OP_SEL_SHIFT_OFFS, + MVPP2_PRS_SRAM_OP_SEL_SHIFT_MASK); + mvpp2_prs_sram_bits_set(pe, MVPP2_PRS_SRAM_OP_SEL_SHIFT_OFFS, op); + + /* Set base offset as current */ + mvpp2_prs_sram_bits_clear(pe, MVPP2_PRS_SRAM_OP_SEL_BASE_OFFS, 1); +} + +/* In the sram sw entry set sign and value of the user defined offset + * generated to the classifier + */ +static void mvpp2_prs_sram_offset_set(struct mvpp2_prs_entry *pe, + unsigned int type, int offset, + unsigned int op) +{ + /* Set sign */ + if (offset < 0) { + mvpp2_prs_sram_bits_set(pe, MVPP2_PRS_SRAM_UDF_SIGN_BIT, 1); + offset = 0 - offset; + } else { + mvpp2_prs_sram_bits_clear(pe, MVPP2_PRS_SRAM_UDF_SIGN_BIT, 1); + } + + /* Set value */ + mvpp2_prs_sram_bits_clear(pe, MVPP2_PRS_SRAM_UDF_OFFS, + MVPP2_PRS_SRAM_UDF_MASK); + mvpp2_prs_sram_bits_set(pe, MVPP2_PRS_SRAM_UDF_OFFS, + offset & MVPP2_PRS_SRAM_UDF_MASK); + + /* Set offset type */ + mvpp2_prs_sram_bits_clear(pe, MVPP2_PRS_SRAM_UDF_TYPE_OFFS, + MVPP2_PRS_SRAM_UDF_TYPE_MASK); + mvpp2_prs_sram_bits_set(pe, MVPP2_PRS_SRAM_UDF_TYPE_OFFS, type); + + /* Set offset operation */ + mvpp2_prs_sram_bits_clear(pe, MVPP2_PRS_SRAM_OP_SEL_UDF_OFFS, + MVPP2_PRS_SRAM_OP_SEL_UDF_MASK); + mvpp2_prs_sram_bits_set(pe, MVPP2_PRS_SRAM_OP_SEL_UDF_OFFS, + op & MVPP2_PRS_SRAM_OP_SEL_UDF_MASK); + + /* Set base offset as current */ + mvpp2_prs_sram_bits_clear(pe, MVPP2_PRS_SRAM_OP_SEL_BASE_OFFS, 1); +} + +/* Find parser flow entry */ +static int mvpp2_prs_flow_find(struct mvpp2 *priv, int flow) +{ + struct mvpp2_prs_entry pe; + int tid; + + /* Go through the all entires with MVPP2_PRS_LU_FLOWS */ + for (tid = MVPP2_PRS_TCAM_SRAM_SIZE - 1; tid >= 0; tid--) { + u8 bits; + + if (!priv->prs_shadow[tid].valid || + priv->prs_shadow[tid].lu != MVPP2_PRS_LU_FLOWS) + continue; + + mvpp2_prs_init_from_hw(priv, &pe, tid); + bits = mvpp2_prs_sram_ai_get(&pe); + + /* Sram store classification lookup ID in AI bits [5:0] */ + if ((bits & MVPP2_PRS_FLOW_ID_MASK) == flow) + return tid; + } + + return -ENOENT; +} + +/* Return first free tcam index, seeking from start to end */ +static int mvpp2_prs_tcam_first_free(struct mvpp2 *priv, unsigned char start, + unsigned char end) +{ + int tid; + + if (start > end) + swap(start, end); + + for (tid = start; tid <= end; tid++) { + if (!priv->prs_shadow[tid].valid) + return tid; + } + + return -EINVAL; +} + +/* Drop flow control pause frames */ +static void mvpp2_prs_drop_fc(struct mvpp2 *priv) +{ + unsigned char da[ETH_ALEN] = { 0x01, 0x80, 0xC2, 0x00, 0x00, 0x01 }; + struct mvpp2_prs_entry pe; + unsigned int len; + + memset(&pe, 0, sizeof(pe)); + + /* For all ports - drop flow control frames */ + pe.index = MVPP2_PE_FC_DROP; + mvpp2_prs_tcam_lu_set(&pe, MVPP2_PRS_LU_MAC); + + /* Set match on DA */ + len = ETH_ALEN; + while (len--) + mvpp2_prs_tcam_data_byte_set(&pe, len, da[len], 0xff); + + mvpp2_prs_sram_ri_update(&pe, MVPP2_PRS_RI_DROP_MASK, + MVPP2_PRS_RI_DROP_MASK); + + mvpp2_prs_sram_bits_set(&pe, MVPP2_PRS_SRAM_LU_GEN_BIT, 1); + mvpp2_prs_sram_next_lu_set(&pe, MVPP2_PRS_LU_FLOWS); + + /* Mask all ports */ + mvpp2_prs_tcam_port_map_set(&pe, MVPP2_PRS_PORT_MASK); + + /* Update shadow table and hw entry */ + mvpp2_prs_shadow_set(priv, pe.index, MVPP2_PRS_LU_MAC); + mvpp2_prs_hw_write(priv, &pe); +} + +/* Enable/disable dropping all mac da's */ +static void mvpp2_prs_mac_drop_all_set(struct mvpp2 *priv, int port, bool add) +{ + struct mvpp2_prs_entry pe; + + if (priv->prs_shadow[MVPP2_PE_DROP_ALL].valid) { + /* Entry exist - update port only */ + mvpp2_prs_init_from_hw(priv, &pe, MVPP2_PE_DROP_ALL); + } else { + /* Entry doesn't exist - create new */ + memset(&pe, 0, sizeof(pe)); + mvpp2_prs_tcam_lu_set(&pe, MVPP2_PRS_LU_MAC); + pe.index = MVPP2_PE_DROP_ALL; + + /* Non-promiscuous mode for all ports - DROP unknown packets */ + mvpp2_prs_sram_ri_update(&pe, MVPP2_PRS_RI_DROP_MASK, + MVPP2_PRS_RI_DROP_MASK); + + mvpp2_prs_sram_bits_set(&pe, MVPP2_PRS_SRAM_LU_GEN_BIT, 1); + mvpp2_prs_sram_next_lu_set(&pe, MVPP2_PRS_LU_FLOWS); + + /* Update shadow table */ + mvpp2_prs_shadow_set(priv, pe.index, MVPP2_PRS_LU_MAC); + + /* Mask all ports */ + mvpp2_prs_tcam_port_map_set(&pe, 0); + } + + /* Update port mask */ + mvpp2_prs_tcam_port_set(&pe, port, add); + + mvpp2_prs_hw_write(priv, &pe); +} + +/* Set port to unicast or multicast promiscuous mode */ +void mvpp2_prs_mac_promisc_set(struct mvpp2 *priv, int port, + enum mvpp2_prs_l2_cast l2_cast, bool add) +{ + struct mvpp2_prs_entry pe; + unsigned char cast_match; + unsigned int ri; + int tid; + + if (l2_cast == MVPP2_PRS_L2_UNI_CAST) { + cast_match = MVPP2_PRS_UCAST_VAL; + tid = MVPP2_PE_MAC_UC_PROMISCUOUS; + ri = MVPP2_PRS_RI_L2_UCAST; + } else { + cast_match = MVPP2_PRS_MCAST_VAL; + tid = MVPP2_PE_MAC_MC_PROMISCUOUS; + ri = MVPP2_PRS_RI_L2_MCAST; + } + + /* promiscuous mode - Accept unknown unicast or multicast packets */ + if (priv->prs_shadow[tid].valid) { + mvpp2_prs_init_from_hw(priv, &pe, tid); + } else { + memset(&pe, 0, sizeof(pe)); + mvpp2_prs_tcam_lu_set(&pe, MVPP2_PRS_LU_MAC); + pe.index = tid; + + /* Continue - set next lookup */ + mvpp2_prs_sram_next_lu_set(&pe, MVPP2_PRS_LU_DSA); + + /* Set result info bits */ + mvpp2_prs_sram_ri_update(&pe, ri, MVPP2_PRS_RI_L2_CAST_MASK); + + /* Match UC or MC addresses */ + mvpp2_prs_tcam_data_byte_set(&pe, 0, cast_match, + MVPP2_PRS_CAST_MASK); + + /* Shift to ethertype */ + mvpp2_prs_sram_shift_set(&pe, 2 * ETH_ALEN, + MVPP2_PRS_SRAM_OP_SEL_SHIFT_ADD); + + /* Mask all ports */ + mvpp2_prs_tcam_port_map_set(&pe, 0); + + /* Update shadow table */ + mvpp2_prs_shadow_set(priv, pe.index, MVPP2_PRS_LU_MAC); + } + + /* Update port mask */ + mvpp2_prs_tcam_port_set(&pe, port, add); + + mvpp2_prs_hw_write(priv, &pe); +} + +/* Set entry for dsa packets */ +static void mvpp2_prs_dsa_tag_set(struct mvpp2 *priv, int port, bool add, + bool tagged, bool extend) +{ + struct mvpp2_prs_entry pe; + int tid, shift; + + if (extend) { + tid = tagged ? MVPP2_PE_EDSA_TAGGED : MVPP2_PE_EDSA_UNTAGGED; + shift = 8; + } else { + tid = tagged ? MVPP2_PE_DSA_TAGGED : MVPP2_PE_DSA_UNTAGGED; + shift = 4; + } + + if (priv->prs_shadow[tid].valid) { + /* Entry exist - update port only */ + mvpp2_prs_init_from_hw(priv, &pe, tid); + } else { + /* Entry doesn't exist - create new */ + memset(&pe, 0, sizeof(pe)); + mvpp2_prs_tcam_lu_set(&pe, MVPP2_PRS_LU_DSA); + pe.index = tid; + + /* Update shadow table */ + mvpp2_prs_shadow_set(priv, pe.index, MVPP2_PRS_LU_DSA); + + if (tagged) { + /* Set tagged bit in DSA tag */ + mvpp2_prs_tcam_data_byte_set(&pe, 0, + MVPP2_PRS_TCAM_DSA_TAGGED_BIT, + MVPP2_PRS_TCAM_DSA_TAGGED_BIT); + + /* Set ai bits for next iteration */ + if (extend) + mvpp2_prs_sram_ai_update(&pe, 1, + MVPP2_PRS_SRAM_AI_MASK); + else + mvpp2_prs_sram_ai_update(&pe, 0, + MVPP2_PRS_SRAM_AI_MASK); + + /* Set result info bits to 'single vlan' */ + mvpp2_prs_sram_ri_update(&pe, MVPP2_PRS_RI_VLAN_SINGLE, + MVPP2_PRS_RI_VLAN_MASK); + /* If packet is tagged continue check vid filtering */ + mvpp2_prs_sram_next_lu_set(&pe, MVPP2_PRS_LU_VID); + } else { + /* Shift 4 bytes for DSA tag or 8 bytes for EDSA tag*/ + mvpp2_prs_sram_shift_set(&pe, shift, + MVPP2_PRS_SRAM_OP_SEL_SHIFT_ADD); + + /* Set result info bits to 'no vlans' */ + mvpp2_prs_sram_ri_update(&pe, MVPP2_PRS_RI_VLAN_NONE, + MVPP2_PRS_RI_VLAN_MASK); + mvpp2_prs_sram_next_lu_set(&pe, MVPP2_PRS_LU_L2); + } + + /* Mask all ports */ + mvpp2_prs_tcam_port_map_set(&pe, 0); + } + + /* Update port mask */ + mvpp2_prs_tcam_port_set(&pe, port, add); + + mvpp2_prs_hw_write(priv, &pe); +} + +/* Set entry for dsa ethertype */ +static void mvpp2_prs_dsa_tag_ethertype_set(struct mvpp2 *priv, int port, + bool add, bool tagged, bool extend) +{ + struct mvpp2_prs_entry pe; + int tid, shift, port_mask; + + if (extend) { + tid = tagged ? MVPP2_PE_ETYPE_EDSA_TAGGED : + MVPP2_PE_ETYPE_EDSA_UNTAGGED; + port_mask = 0; + shift = 8; + } else { + tid = tagged ? MVPP2_PE_ETYPE_DSA_TAGGED : + MVPP2_PE_ETYPE_DSA_UNTAGGED; + port_mask = MVPP2_PRS_PORT_MASK; + shift = 4; + } + + if (priv->prs_shadow[tid].valid) { + /* Entry exist - update port only */ + mvpp2_prs_init_from_hw(priv, &pe, tid); + } else { + /* Entry doesn't exist - create new */ + memset(&pe, 0, sizeof(pe)); + mvpp2_prs_tcam_lu_set(&pe, MVPP2_PRS_LU_DSA); + pe.index = tid; + + /* Set ethertype */ + mvpp2_prs_match_etype(&pe, 0, ETH_P_EDSA); + mvpp2_prs_match_etype(&pe, 2, 0); + + mvpp2_prs_sram_ri_update(&pe, MVPP2_PRS_RI_DSA_MASK, + MVPP2_PRS_RI_DSA_MASK); + /* Shift ethertype + 2 byte reserved + tag*/ + mvpp2_prs_sram_shift_set(&pe, 2 + MVPP2_ETH_TYPE_LEN + shift, + MVPP2_PRS_SRAM_OP_SEL_SHIFT_ADD); + + /* Update shadow table */ + mvpp2_prs_shadow_set(priv, pe.index, MVPP2_PRS_LU_DSA); + + if (tagged) { + /* Set tagged bit in DSA tag */ + mvpp2_prs_tcam_data_byte_set(&pe, + MVPP2_ETH_TYPE_LEN + 2 + 3, + MVPP2_PRS_TCAM_DSA_TAGGED_BIT, + MVPP2_PRS_TCAM_DSA_TAGGED_BIT); + /* Clear all ai bits for next iteration */ + mvpp2_prs_sram_ai_update(&pe, 0, + MVPP2_PRS_SRAM_AI_MASK); + /* If packet is tagged continue check vlans */ + mvpp2_prs_sram_next_lu_set(&pe, MVPP2_PRS_LU_VLAN); + } else { + /* Set result info bits to 'no vlans' */ + mvpp2_prs_sram_ri_update(&pe, MVPP2_PRS_RI_VLAN_NONE, + MVPP2_PRS_RI_VLAN_MASK); + mvpp2_prs_sram_next_lu_set(&pe, MVPP2_PRS_LU_L2); + } + /* Mask/unmask all ports, depending on dsa type */ + mvpp2_prs_tcam_port_map_set(&pe, port_mask); + } + + /* Update port mask */ + mvpp2_prs_tcam_port_set(&pe, port, add); + + mvpp2_prs_hw_write(priv, &pe); +} + +/* Search for existing single/triple vlan entry */ +static int mvpp2_prs_vlan_find(struct mvpp2 *priv, unsigned short tpid, int ai) +{ + struct mvpp2_prs_entry pe; + int tid; + + /* Go through the all entries with MVPP2_PRS_LU_VLAN */ + for (tid = MVPP2_PE_FIRST_FREE_TID; + tid <= MVPP2_PE_LAST_FREE_TID; tid++) { + unsigned int ri_bits, ai_bits; + bool match; + + if (!priv->prs_shadow[tid].valid || + priv->prs_shadow[tid].lu != MVPP2_PRS_LU_VLAN) + continue; + + mvpp2_prs_init_from_hw(priv, &pe, tid); + match = mvpp2_prs_tcam_data_cmp(&pe, 0, tpid); + if (!match) + continue; + + /* Get vlan type */ + ri_bits = mvpp2_prs_sram_ri_get(&pe); + ri_bits &= MVPP2_PRS_RI_VLAN_MASK; + + /* Get current ai value from tcam */ + ai_bits = mvpp2_prs_tcam_ai_get(&pe); + /* Clear double vlan bit */ + ai_bits &= ~MVPP2_PRS_DBL_VLAN_AI_BIT; + + if (ai != ai_bits) + continue; + + if (ri_bits == MVPP2_PRS_RI_VLAN_SINGLE || + ri_bits == MVPP2_PRS_RI_VLAN_TRIPLE) + return tid; + } + + return -ENOENT; +} + +/* Add/update single/triple vlan entry */ +static int mvpp2_prs_vlan_add(struct mvpp2 *priv, unsigned short tpid, int ai, + unsigned int port_map) +{ + struct mvpp2_prs_entry pe; + int tid_aux, tid; + int ret = 0; + + memset(&pe, 0, sizeof(pe)); + + tid = mvpp2_prs_vlan_find(priv, tpid, ai); + + if (tid < 0) { + /* Create new tcam entry */ + tid = mvpp2_prs_tcam_first_free(priv, MVPP2_PE_LAST_FREE_TID, + MVPP2_PE_FIRST_FREE_TID); + if (tid < 0) + return tid; + + /* Get last double vlan tid */ + for (tid_aux = MVPP2_PE_LAST_FREE_TID; + tid_aux >= MVPP2_PE_FIRST_FREE_TID; tid_aux--) { + unsigned int ri_bits; + + if (!priv->prs_shadow[tid_aux].valid || + priv->prs_shadow[tid_aux].lu != MVPP2_PRS_LU_VLAN) + continue; + + mvpp2_prs_init_from_hw(priv, &pe, tid_aux); + ri_bits = mvpp2_prs_sram_ri_get(&pe); + if ((ri_bits & MVPP2_PRS_RI_VLAN_MASK) == + MVPP2_PRS_RI_VLAN_DOUBLE) + break; + } + + if (tid <= tid_aux) + return -EINVAL; + + memset(&pe, 0, sizeof(pe)); + pe.index = tid; + mvpp2_prs_tcam_lu_set(&pe, MVPP2_PRS_LU_VLAN); + + mvpp2_prs_match_etype(&pe, 0, tpid); + + /* VLAN tag detected, proceed with VID filtering */ + mvpp2_prs_sram_next_lu_set(&pe, MVPP2_PRS_LU_VID); + + /* Clear all ai bits for next iteration */ + mvpp2_prs_sram_ai_update(&pe, 0, MVPP2_PRS_SRAM_AI_MASK); + + if (ai == MVPP2_PRS_SINGLE_VLAN_AI) { + mvpp2_prs_sram_ri_update(&pe, MVPP2_PRS_RI_VLAN_SINGLE, + MVPP2_PRS_RI_VLAN_MASK); + } else { + ai |= MVPP2_PRS_DBL_VLAN_AI_BIT; + mvpp2_prs_sram_ri_update(&pe, MVPP2_PRS_RI_VLAN_TRIPLE, + MVPP2_PRS_RI_VLAN_MASK); + } + mvpp2_prs_tcam_ai_update(&pe, ai, MVPP2_PRS_SRAM_AI_MASK); + + mvpp2_prs_shadow_set(priv, pe.index, MVPP2_PRS_LU_VLAN); + } else { + mvpp2_prs_init_from_hw(priv, &pe, tid); + } + /* Update ports' mask */ + mvpp2_prs_tcam_port_map_set(&pe, port_map); + + mvpp2_prs_hw_write(priv, &pe); + + return ret; +} + +/* Get first free double vlan ai number */ +static int mvpp2_prs_double_vlan_ai_free_get(struct mvpp2 *priv) +{ + int i; + + for (i = 1; i < MVPP2_PRS_DBL_VLANS_MAX; i++) { + if (!priv->prs_double_vlans[i]) + return i; + } + + return -EINVAL; +} + +/* Search for existing double vlan entry */ +static int mvpp2_prs_double_vlan_find(struct mvpp2 *priv, unsigned short tpid1, + unsigned short tpid2) +{ + struct mvpp2_prs_entry pe; + int tid; + + /* Go through the all entries with MVPP2_PRS_LU_VLAN */ + for (tid = MVPP2_PE_FIRST_FREE_TID; + tid <= MVPP2_PE_LAST_FREE_TID; tid++) { + unsigned int ri_mask; + bool match; + + if (!priv->prs_shadow[tid].valid || + priv->prs_shadow[tid].lu != MVPP2_PRS_LU_VLAN) + continue; + + mvpp2_prs_init_from_hw(priv, &pe, tid); + + match = mvpp2_prs_tcam_data_cmp(&pe, 0, tpid1) && + mvpp2_prs_tcam_data_cmp(&pe, 4, tpid2); + + if (!match) + continue; + + ri_mask = mvpp2_prs_sram_ri_get(&pe) & MVPP2_PRS_RI_VLAN_MASK; + if (ri_mask == MVPP2_PRS_RI_VLAN_DOUBLE) + return tid; + } + + return -ENOENT; +} + +/* Add or update double vlan entry */ +static int mvpp2_prs_double_vlan_add(struct mvpp2 *priv, unsigned short tpid1, + unsigned short tpid2, + unsigned int port_map) +{ + int tid_aux, tid, ai, ret = 0; + struct mvpp2_prs_entry pe; + + memset(&pe, 0, sizeof(pe)); + + tid = mvpp2_prs_double_vlan_find(priv, tpid1, tpid2); + + if (tid < 0) { + /* Create new tcam entry */ + tid = mvpp2_prs_tcam_first_free(priv, MVPP2_PE_FIRST_FREE_TID, + MVPP2_PE_LAST_FREE_TID); + if (tid < 0) + return tid; + + /* Set ai value for new double vlan entry */ + ai = mvpp2_prs_double_vlan_ai_free_get(priv); + if (ai < 0) + return ai; + + /* Get first single/triple vlan tid */ + for (tid_aux = MVPP2_PE_FIRST_FREE_TID; + tid_aux <= MVPP2_PE_LAST_FREE_TID; tid_aux++) { + unsigned int ri_bits; + + if (!priv->prs_shadow[tid_aux].valid || + priv->prs_shadow[tid_aux].lu != MVPP2_PRS_LU_VLAN) + continue; + + mvpp2_prs_init_from_hw(priv, &pe, tid_aux); + ri_bits = mvpp2_prs_sram_ri_get(&pe); + ri_bits &= MVPP2_PRS_RI_VLAN_MASK; + if (ri_bits == MVPP2_PRS_RI_VLAN_SINGLE || + ri_bits == MVPP2_PRS_RI_VLAN_TRIPLE) + break; + } + + if (tid >= tid_aux) + return -ERANGE; + + memset(&pe, 0, sizeof(pe)); + mvpp2_prs_tcam_lu_set(&pe, MVPP2_PRS_LU_VLAN); + pe.index = tid; + + priv->prs_double_vlans[ai] = true; + + mvpp2_prs_match_etype(&pe, 0, tpid1); + mvpp2_prs_match_etype(&pe, 4, tpid2); + + mvpp2_prs_sram_next_lu_set(&pe, MVPP2_PRS_LU_VLAN); + /* Shift 4 bytes - skip outer vlan tag */ + mvpp2_prs_sram_shift_set(&pe, MVPP2_VLAN_TAG_LEN, + MVPP2_PRS_SRAM_OP_SEL_SHIFT_ADD); + mvpp2_prs_sram_ri_update(&pe, MVPP2_PRS_RI_VLAN_DOUBLE, + MVPP2_PRS_RI_VLAN_MASK); + mvpp2_prs_sram_ai_update(&pe, ai | MVPP2_PRS_DBL_VLAN_AI_BIT, + MVPP2_PRS_SRAM_AI_MASK); + + mvpp2_prs_shadow_set(priv, pe.index, MVPP2_PRS_LU_VLAN); + } else { + mvpp2_prs_init_from_hw(priv, &pe, tid); + } + + /* Update ports' mask */ + mvpp2_prs_tcam_port_map_set(&pe, port_map); + mvpp2_prs_hw_write(priv, &pe); + + return ret; +} + +/* IPv4 header parsing for fragmentation and L4 offset */ +static int mvpp2_prs_ip4_proto(struct mvpp2 *priv, unsigned short proto, + unsigned int ri, unsigned int ri_mask) +{ + struct mvpp2_prs_entry pe; + int tid; + + if ((proto != IPPROTO_TCP) && (proto != IPPROTO_UDP) && + (proto != IPPROTO_IGMP)) + return -EINVAL; + + /* Not fragmented packet */ + tid = mvpp2_prs_tcam_first_free(priv, MVPP2_PE_FIRST_FREE_TID, + MVPP2_PE_LAST_FREE_TID); + if (tid < 0) + return tid; + + memset(&pe, 0, sizeof(pe)); + mvpp2_prs_tcam_lu_set(&pe, MVPP2_PRS_LU_IP4); + pe.index = tid; + + /* Finished: go to flowid generation */ + mvpp2_prs_sram_next_lu_set(&pe, MVPP2_PRS_LU_FLOWS); + mvpp2_prs_sram_bits_set(&pe, MVPP2_PRS_SRAM_LU_GEN_BIT, 1); + + /* Set L3 offset */ + mvpp2_prs_sram_offset_set(&pe, MVPP2_PRS_SRAM_UDF_TYPE_L3, -4, + MVPP2_PRS_SRAM_OP_SEL_UDF_ADD); + mvpp2_prs_sram_ai_update(&pe, 0, MVPP2_PRS_IPV4_DIP_AI_BIT); + mvpp2_prs_sram_ri_update(&pe, ri, ri_mask | MVPP2_PRS_RI_IP_FRAG_MASK); + + mvpp2_prs_tcam_data_byte_set(&pe, 2, 0x00, + MVPP2_PRS_TCAM_PROTO_MASK_L); + mvpp2_prs_tcam_data_byte_set(&pe, 3, 0x00, + MVPP2_PRS_TCAM_PROTO_MASK); + + mvpp2_prs_tcam_data_byte_set(&pe, 5, proto, MVPP2_PRS_TCAM_PROTO_MASK); + mvpp2_prs_tcam_ai_update(&pe, MVPP2_PRS_IPV4_DIP_AI_BIT, + MVPP2_PRS_IPV4_DIP_AI_BIT); + /* Unmask all ports */ + mvpp2_prs_tcam_port_map_set(&pe, MVPP2_PRS_PORT_MASK); + + /* Update shadow table and hw entry */ + mvpp2_prs_shadow_set(priv, pe.index, MVPP2_PRS_LU_IP4); + mvpp2_prs_hw_write(priv, &pe); + + /* Fragmented packet */ + tid = mvpp2_prs_tcam_first_free(priv, MVPP2_PE_FIRST_FREE_TID, + MVPP2_PE_LAST_FREE_TID); + if (tid < 0) + return tid; + + pe.index = tid; + /* Clear ri before updating */ + pe.sram[MVPP2_PRS_SRAM_RI_WORD] = 0x0; + pe.sram[MVPP2_PRS_SRAM_RI_CTRL_WORD] = 0x0; + mvpp2_prs_sram_ri_update(&pe, ri, ri_mask); + + mvpp2_prs_sram_ri_update(&pe, ri | MVPP2_PRS_RI_IP_FRAG_TRUE, + ri_mask | MVPP2_PRS_RI_IP_FRAG_MASK); + + mvpp2_prs_tcam_data_byte_set(&pe, 2, 0x00, 0x0); + mvpp2_prs_tcam_data_byte_set(&pe, 3, 0x00, 0x0); + + /* Update shadow table and hw entry */ + mvpp2_prs_shadow_set(priv, pe.index, MVPP2_PRS_LU_IP4); + mvpp2_prs_hw_write(priv, &pe); + + return 0; +} + +/* IPv4 L3 multicast or broadcast */ +static int mvpp2_prs_ip4_cast(struct mvpp2 *priv, unsigned short l3_cast) +{ + struct mvpp2_prs_entry pe; + int mask, tid; + + tid = mvpp2_prs_tcam_first_free(priv, MVPP2_PE_FIRST_FREE_TID, + MVPP2_PE_LAST_FREE_TID); + if (tid < 0) + return tid; + + memset(&pe, 0, sizeof(pe)); + mvpp2_prs_tcam_lu_set(&pe, MVPP2_PRS_LU_IP4); + pe.index = tid; + + switch (l3_cast) { + case MVPP2_PRS_L3_MULTI_CAST: + mvpp2_prs_tcam_data_byte_set(&pe, 0, MVPP2_PRS_IPV4_MC, + MVPP2_PRS_IPV4_MC_MASK); + mvpp2_prs_sram_ri_update(&pe, MVPP2_PRS_RI_L3_MCAST, + MVPP2_PRS_RI_L3_ADDR_MASK); + break; + case MVPP2_PRS_L3_BROAD_CAST: + mask = MVPP2_PRS_IPV4_BC_MASK; + mvpp2_prs_tcam_data_byte_set(&pe, 0, mask, mask); + mvpp2_prs_tcam_data_byte_set(&pe, 1, mask, mask); + mvpp2_prs_tcam_data_byte_set(&pe, 2, mask, mask); + mvpp2_prs_tcam_data_byte_set(&pe, 3, mask, mask); + mvpp2_prs_sram_ri_update(&pe, MVPP2_PRS_RI_L3_BCAST, + MVPP2_PRS_RI_L3_ADDR_MASK); + break; + default: + return -EINVAL; + } + + /* Go again to ipv4 */ + mvpp2_prs_sram_next_lu_set(&pe, MVPP2_PRS_LU_IP4); + + mvpp2_prs_sram_ai_update(&pe, MVPP2_PRS_IPV4_DIP_AI_BIT, + MVPP2_PRS_IPV4_DIP_AI_BIT); + + /* Shift back to IPv4 proto */ + mvpp2_prs_sram_shift_set(&pe, -12, MVPP2_PRS_SRAM_OP_SEL_SHIFT_ADD); + + mvpp2_prs_tcam_ai_update(&pe, 0, MVPP2_PRS_IPV4_DIP_AI_BIT); + + /* Unmask all ports */ + mvpp2_prs_tcam_port_map_set(&pe, MVPP2_PRS_PORT_MASK); + + /* Update shadow table and hw entry */ + mvpp2_prs_shadow_set(priv, pe.index, MVPP2_PRS_LU_IP4); + mvpp2_prs_hw_write(priv, &pe); + + return 0; +} + +/* Set entries for protocols over IPv6 */ +static int mvpp2_prs_ip6_proto(struct mvpp2 *priv, unsigned short proto, + unsigned int ri, unsigned int ri_mask) +{ + struct mvpp2_prs_entry pe; + int tid; + + if ((proto != IPPROTO_TCP) && (proto != IPPROTO_UDP) && + (proto != IPPROTO_ICMPV6) && (proto != IPPROTO_IPIP)) + return -EINVAL; + + tid = mvpp2_prs_tcam_first_free(priv, MVPP2_PE_FIRST_FREE_TID, + MVPP2_PE_LAST_FREE_TID); + if (tid < 0) + return tid; + + memset(&pe, 0, sizeof(pe)); + mvpp2_prs_tcam_lu_set(&pe, MVPP2_PRS_LU_IP6); + pe.index = tid; + + /* Finished: go to flowid generation */ + mvpp2_prs_sram_next_lu_set(&pe, MVPP2_PRS_LU_FLOWS); + mvpp2_prs_sram_bits_set(&pe, MVPP2_PRS_SRAM_LU_GEN_BIT, 1); + mvpp2_prs_sram_ri_update(&pe, ri, ri_mask); + mvpp2_prs_sram_offset_set(&pe, MVPP2_PRS_SRAM_UDF_TYPE_L4, + sizeof(struct ipv6hdr) - 6, + MVPP2_PRS_SRAM_OP_SEL_UDF_ADD); + + mvpp2_prs_tcam_data_byte_set(&pe, 0, proto, MVPP2_PRS_TCAM_PROTO_MASK); + mvpp2_prs_tcam_ai_update(&pe, MVPP2_PRS_IPV6_NO_EXT_AI_BIT, + MVPP2_PRS_IPV6_NO_EXT_AI_BIT); + /* Unmask all ports */ + mvpp2_prs_tcam_port_map_set(&pe, MVPP2_PRS_PORT_MASK); + + /* Write HW */ + mvpp2_prs_shadow_set(priv, pe.index, MVPP2_PRS_LU_IP6); + mvpp2_prs_hw_write(priv, &pe); + + return 0; +} + +/* IPv6 L3 multicast entry */ +static int mvpp2_prs_ip6_cast(struct mvpp2 *priv, unsigned short l3_cast) +{ + struct mvpp2_prs_entry pe; + int tid; + + if (l3_cast != MVPP2_PRS_L3_MULTI_CAST) + return -EINVAL; + + tid = mvpp2_prs_tcam_first_free(priv, MVPP2_PE_FIRST_FREE_TID, + MVPP2_PE_LAST_FREE_TID); + if (tid < 0) + return tid; + + memset(&pe, 0, sizeof(pe)); + mvpp2_prs_tcam_lu_set(&pe, MVPP2_PRS_LU_IP6); + pe.index = tid; + + /* Finished: go to flowid generation */ + mvpp2_prs_sram_next_lu_set(&pe, MVPP2_PRS_LU_IP6); + mvpp2_prs_sram_ri_update(&pe, MVPP2_PRS_RI_L3_MCAST, + MVPP2_PRS_RI_L3_ADDR_MASK); + mvpp2_prs_sram_ai_update(&pe, MVPP2_PRS_IPV6_NO_EXT_AI_BIT, + MVPP2_PRS_IPV6_NO_EXT_AI_BIT); + /* Shift back to IPv6 NH */ + mvpp2_prs_sram_shift_set(&pe, -18, MVPP2_PRS_SRAM_OP_SEL_SHIFT_ADD); + + mvpp2_prs_tcam_data_byte_set(&pe, 0, MVPP2_PRS_IPV6_MC, + MVPP2_PRS_IPV6_MC_MASK); + mvpp2_prs_tcam_ai_update(&pe, 0, MVPP2_PRS_IPV6_NO_EXT_AI_BIT); + /* Unmask all ports */ + mvpp2_prs_tcam_port_map_set(&pe, MVPP2_PRS_PORT_MASK); + + /* Update shadow table and hw entry */ + mvpp2_prs_shadow_set(priv, pe.index, MVPP2_PRS_LU_IP6); + mvpp2_prs_hw_write(priv, &pe); + + return 0; +} + +/* Parser per-port initialization */ +static void mvpp2_prs_hw_port_init(struct mvpp2 *priv, int port, int lu_first, + int lu_max, int offset) +{ + u32 val; + + /* Set lookup ID */ + val = mvpp2_read(priv, MVPP2_PRS_INIT_LOOKUP_REG); + val &= ~MVPP2_PRS_PORT_LU_MASK(port); + val |= MVPP2_PRS_PORT_LU_VAL(port, lu_first); + mvpp2_write(priv, MVPP2_PRS_INIT_LOOKUP_REG, val); + + /* Set maximum number of loops for packet received from port */ + val = mvpp2_read(priv, MVPP2_PRS_MAX_LOOP_REG(port)); + val &= ~MVPP2_PRS_MAX_LOOP_MASK(port); + val |= MVPP2_PRS_MAX_LOOP_VAL(port, lu_max); + mvpp2_write(priv, MVPP2_PRS_MAX_LOOP_REG(port), val); + + /* Set initial offset for packet header extraction for the first + * searching loop + */ + val = mvpp2_read(priv, MVPP2_PRS_INIT_OFFS_REG(port)); + val &= ~MVPP2_PRS_INIT_OFF_MASK(port); + val |= MVPP2_PRS_INIT_OFF_VAL(port, offset); + mvpp2_write(priv, MVPP2_PRS_INIT_OFFS_REG(port), val); +} + +/* Default flow entries initialization for all ports */ +static void mvpp2_prs_def_flow_init(struct mvpp2 *priv) +{ + struct mvpp2_prs_entry pe; + int port; + + for (port = 0; port < MVPP2_MAX_PORTS; port++) { + memset(&pe, 0, sizeof(pe)); + mvpp2_prs_tcam_lu_set(&pe, MVPP2_PRS_LU_FLOWS); + pe.index = MVPP2_PE_FIRST_DEFAULT_FLOW - port; + + /* Mask all ports */ + mvpp2_prs_tcam_port_map_set(&pe, 0); + + /* Set flow ID*/ + mvpp2_prs_sram_ai_update(&pe, port, MVPP2_PRS_FLOW_ID_MASK); + mvpp2_prs_sram_bits_set(&pe, MVPP2_PRS_SRAM_LU_DONE_BIT, 1); + + /* Update shadow table and hw entry */ + mvpp2_prs_shadow_set(priv, pe.index, MVPP2_PRS_LU_FLOWS); + mvpp2_prs_hw_write(priv, &pe); + } +} + +/* Set default entry for Marvell Header field */ +static void mvpp2_prs_mh_init(struct mvpp2 *priv) +{ + struct mvpp2_prs_entry pe; + + memset(&pe, 0, sizeof(pe)); + + pe.index = MVPP2_PE_MH_DEFAULT; + mvpp2_prs_tcam_lu_set(&pe, MVPP2_PRS_LU_MH); + mvpp2_prs_sram_shift_set(&pe, MVPP2_MH_SIZE, + MVPP2_PRS_SRAM_OP_SEL_SHIFT_ADD); + mvpp2_prs_sram_next_lu_set(&pe, MVPP2_PRS_LU_MAC); + + /* Unmask all ports */ + mvpp2_prs_tcam_port_map_set(&pe, MVPP2_PRS_PORT_MASK); + + /* Update shadow table and hw entry */ + mvpp2_prs_shadow_set(priv, pe.index, MVPP2_PRS_LU_MH); + mvpp2_prs_hw_write(priv, &pe); + + /* Set MH entry that skip parser */ + pe.index = MVPP2_PE_MH_SKIP_PRS; + mvpp2_prs_tcam_lu_set(&pe, MVPP2_PRS_LU_MH); + mvpp2_prs_sram_shift_set(&pe, MVPP2_MH_SIZE, + MVPP2_PRS_SRAM_OP_SEL_SHIFT_ADD); + mvpp2_prs_sram_bits_set(&pe, MVPP2_PRS_SRAM_LU_GEN_BIT, 1); + mvpp2_prs_sram_next_lu_set(&pe, MVPP2_PRS_LU_FLOWS); + + /* Mask all ports */ + mvpp2_prs_tcam_port_map_set(&pe, 0); + + /* Update shadow table and hw entry */ + mvpp2_prs_shadow_set(priv, pe.index, MVPP2_PRS_LU_MH); + mvpp2_prs_hw_write(priv, &pe); +} + +/* Set default entires (place holder) for promiscuous, non-promiscuous and + * multicast MAC addresses + */ +static void mvpp2_prs_mac_init(struct mvpp2 *priv) +{ + struct mvpp2_prs_entry pe; + + memset(&pe, 0, sizeof(pe)); + + /* Non-promiscuous mode for all ports - DROP unknown packets */ + pe.index = MVPP2_PE_MAC_NON_PROMISCUOUS; + mvpp2_prs_tcam_lu_set(&pe, MVPP2_PRS_LU_MAC); + + mvpp2_prs_sram_ri_update(&pe, MVPP2_PRS_RI_DROP_MASK, + MVPP2_PRS_RI_DROP_MASK); + mvpp2_prs_sram_bits_set(&pe, MVPP2_PRS_SRAM_LU_GEN_BIT, 1); + mvpp2_prs_sram_next_lu_set(&pe, MVPP2_PRS_LU_FLOWS); + + /* Unmask all ports */ + mvpp2_prs_tcam_port_map_set(&pe, MVPP2_PRS_PORT_MASK); + + /* Update shadow table and hw entry */ + mvpp2_prs_shadow_set(priv, pe.index, MVPP2_PRS_LU_MAC); + mvpp2_prs_hw_write(priv, &pe); + + /* Create dummy entries for drop all and promiscuous modes */ + mvpp2_prs_drop_fc(priv); + mvpp2_prs_mac_drop_all_set(priv, 0, false); + mvpp2_prs_mac_promisc_set(priv, 0, MVPP2_PRS_L2_UNI_CAST, false); + mvpp2_prs_mac_promisc_set(priv, 0, MVPP2_PRS_L2_MULTI_CAST, false); +} + +/* Set default entries for various types of dsa packets */ +static void mvpp2_prs_dsa_init(struct mvpp2 *priv) +{ + struct mvpp2_prs_entry pe; + + /* None tagged EDSA entry - place holder */ + mvpp2_prs_dsa_tag_set(priv, 0, false, MVPP2_PRS_UNTAGGED, + MVPP2_PRS_EDSA); + + /* Tagged EDSA entry - place holder */ + mvpp2_prs_dsa_tag_set(priv, 0, false, MVPP2_PRS_TAGGED, MVPP2_PRS_EDSA); + + /* None tagged DSA entry - place holder */ + mvpp2_prs_dsa_tag_set(priv, 0, false, MVPP2_PRS_UNTAGGED, + MVPP2_PRS_DSA); + + /* Tagged DSA entry - place holder */ + mvpp2_prs_dsa_tag_set(priv, 0, false, MVPP2_PRS_TAGGED, MVPP2_PRS_DSA); + + /* None tagged EDSA ethertype entry - place holder*/ + mvpp2_prs_dsa_tag_ethertype_set(priv, 0, false, + MVPP2_PRS_UNTAGGED, MVPP2_PRS_EDSA); + + /* Tagged EDSA ethertype entry - place holder*/ + mvpp2_prs_dsa_tag_ethertype_set(priv, 0, false, + MVPP2_PRS_TAGGED, MVPP2_PRS_EDSA); + + /* None tagged DSA ethertype entry */ + mvpp2_prs_dsa_tag_ethertype_set(priv, 0, true, + MVPP2_PRS_UNTAGGED, MVPP2_PRS_DSA); + + /* Tagged DSA ethertype entry */ + mvpp2_prs_dsa_tag_ethertype_set(priv, 0, true, + MVPP2_PRS_TAGGED, MVPP2_PRS_DSA); + + /* Set default entry, in case DSA or EDSA tag not found */ + memset(&pe, 0, sizeof(pe)); + mvpp2_prs_tcam_lu_set(&pe, MVPP2_PRS_LU_DSA); + pe.index = MVPP2_PE_DSA_DEFAULT; + mvpp2_prs_sram_next_lu_set(&pe, MVPP2_PRS_LU_VLAN); + + /* Shift 0 bytes */ + mvpp2_prs_sram_shift_set(&pe, 0, MVPP2_PRS_SRAM_OP_SEL_SHIFT_ADD); + mvpp2_prs_shadow_set(priv, pe.index, MVPP2_PRS_LU_MAC); + + /* Clear all sram ai bits for next iteration */ + mvpp2_prs_sram_ai_update(&pe, 0, MVPP2_PRS_SRAM_AI_MASK); + + /* Unmask all ports */ + mvpp2_prs_tcam_port_map_set(&pe, MVPP2_PRS_PORT_MASK); + + mvpp2_prs_hw_write(priv, &pe); +} + +/* Initialize parser entries for VID filtering */ +static void mvpp2_prs_vid_init(struct mvpp2 *priv) +{ + struct mvpp2_prs_entry pe; + + memset(&pe, 0, sizeof(pe)); + + /* Set default vid entry */ + pe.index = MVPP2_PE_VID_FLTR_DEFAULT; + mvpp2_prs_tcam_lu_set(&pe, MVPP2_PRS_LU_VID); + + mvpp2_prs_tcam_ai_update(&pe, 0, MVPP2_PRS_EDSA_VID_AI_BIT); + + /* Skip VLAN header - Set offset to 4 bytes */ + mvpp2_prs_sram_shift_set(&pe, MVPP2_VLAN_TAG_LEN, + MVPP2_PRS_SRAM_OP_SEL_SHIFT_ADD); + + /* Clear all ai bits for next iteration */ + mvpp2_prs_sram_ai_update(&pe, 0, MVPP2_PRS_SRAM_AI_MASK); + + mvpp2_prs_sram_next_lu_set(&pe, MVPP2_PRS_LU_L2); + + /* Unmask all ports */ + mvpp2_prs_tcam_port_map_set(&pe, MVPP2_PRS_PORT_MASK); + + /* Update shadow table and hw entry */ + mvpp2_prs_shadow_set(priv, pe.index, MVPP2_PRS_LU_VID); + mvpp2_prs_hw_write(priv, &pe); + + /* Set default vid entry for extended DSA*/ + memset(&pe, 0, sizeof(pe)); + + /* Set default vid entry */ + pe.index = MVPP2_PE_VID_EDSA_FLTR_DEFAULT; + mvpp2_prs_tcam_lu_set(&pe, MVPP2_PRS_LU_VID); + + mvpp2_prs_tcam_ai_update(&pe, MVPP2_PRS_EDSA_VID_AI_BIT, + MVPP2_PRS_EDSA_VID_AI_BIT); + + /* Skip VLAN header - Set offset to 8 bytes */ + mvpp2_prs_sram_shift_set(&pe, MVPP2_VLAN_TAG_EDSA_LEN, + MVPP2_PRS_SRAM_OP_SEL_SHIFT_ADD); + + /* Clear all ai bits for next iteration */ + mvpp2_prs_sram_ai_update(&pe, 0, MVPP2_PRS_SRAM_AI_MASK); + + mvpp2_prs_sram_next_lu_set(&pe, MVPP2_PRS_LU_L2); + + /* Unmask all ports */ + mvpp2_prs_tcam_port_map_set(&pe, MVPP2_PRS_PORT_MASK); + + /* Update shadow table and hw entry */ + mvpp2_prs_shadow_set(priv, pe.index, MVPP2_PRS_LU_VID); + mvpp2_prs_hw_write(priv, &pe); +} + +/* Match basic ethertypes */ +static int mvpp2_prs_etype_init(struct mvpp2 *priv) +{ + struct mvpp2_prs_entry pe; + int tid, ihl; + + /* Ethertype: PPPoE */ + tid = mvpp2_prs_tcam_first_free(priv, MVPP2_PE_FIRST_FREE_TID, + MVPP2_PE_LAST_FREE_TID); + if (tid < 0) + return tid; + + memset(&pe, 0, sizeof(pe)); + mvpp2_prs_tcam_lu_set(&pe, MVPP2_PRS_LU_L2); + pe.index = tid; + + mvpp2_prs_match_etype(&pe, 0, ETH_P_PPP_SES); + + mvpp2_prs_sram_shift_set(&pe, MVPP2_PPPOE_HDR_SIZE, + MVPP2_PRS_SRAM_OP_SEL_SHIFT_ADD); + mvpp2_prs_sram_next_lu_set(&pe, MVPP2_PRS_LU_PPPOE); + mvpp2_prs_sram_ri_update(&pe, MVPP2_PRS_RI_PPPOE_MASK, + MVPP2_PRS_RI_PPPOE_MASK); + + /* Update shadow table and hw entry */ + mvpp2_prs_shadow_set(priv, pe.index, MVPP2_PRS_LU_L2); + priv->prs_shadow[pe.index].udf = MVPP2_PRS_UDF_L2_DEF; + priv->prs_shadow[pe.index].finish = false; + mvpp2_prs_shadow_ri_set(priv, pe.index, MVPP2_PRS_RI_PPPOE_MASK, + MVPP2_PRS_RI_PPPOE_MASK); + mvpp2_prs_hw_write(priv, &pe); + + /* Ethertype: ARP */ + tid = mvpp2_prs_tcam_first_free(priv, MVPP2_PE_FIRST_FREE_TID, + MVPP2_PE_LAST_FREE_TID); + if (tid < 0) + return tid; + + memset(&pe, 0, sizeof(pe)); + mvpp2_prs_tcam_lu_set(&pe, MVPP2_PRS_LU_L2); + pe.index = tid; + + mvpp2_prs_match_etype(&pe, 0, ETH_P_ARP); + + /* Generate flow in the next iteration*/ + mvpp2_prs_sram_next_lu_set(&pe, MVPP2_PRS_LU_FLOWS); + mvpp2_prs_sram_bits_set(&pe, MVPP2_PRS_SRAM_LU_GEN_BIT, 1); + mvpp2_prs_sram_ri_update(&pe, MVPP2_PRS_RI_L3_ARP, + MVPP2_PRS_RI_L3_PROTO_MASK); + /* Set L3 offset */ + mvpp2_prs_sram_offset_set(&pe, MVPP2_PRS_SRAM_UDF_TYPE_L3, + MVPP2_ETH_TYPE_LEN, + MVPP2_PRS_SRAM_OP_SEL_UDF_ADD); + + /* Update shadow table and hw entry */ + mvpp2_prs_shadow_set(priv, pe.index, MVPP2_PRS_LU_L2); + priv->prs_shadow[pe.index].udf = MVPP2_PRS_UDF_L2_DEF; + priv->prs_shadow[pe.index].finish = true; + mvpp2_prs_shadow_ri_set(priv, pe.index, MVPP2_PRS_RI_L3_ARP, + MVPP2_PRS_RI_L3_PROTO_MASK); + mvpp2_prs_hw_write(priv, &pe); + + /* Ethertype: LBTD */ + tid = mvpp2_prs_tcam_first_free(priv, MVPP2_PE_FIRST_FREE_TID, + MVPP2_PE_LAST_FREE_TID); + if (tid < 0) + return tid; + + memset(&pe, 0, sizeof(pe)); + mvpp2_prs_tcam_lu_set(&pe, MVPP2_PRS_LU_L2); + pe.index = tid; + + mvpp2_prs_match_etype(&pe, 0, MVPP2_IP_LBDT_TYPE); + + /* Generate flow in the next iteration*/ + mvpp2_prs_sram_next_lu_set(&pe, MVPP2_PRS_LU_FLOWS); + mvpp2_prs_sram_bits_set(&pe, MVPP2_PRS_SRAM_LU_GEN_BIT, 1); + mvpp2_prs_sram_ri_update(&pe, MVPP2_PRS_RI_CPU_CODE_RX_SPEC | + MVPP2_PRS_RI_UDF3_RX_SPECIAL, + MVPP2_PRS_RI_CPU_CODE_MASK | + MVPP2_PRS_RI_UDF3_MASK); + /* Set L3 offset */ + mvpp2_prs_sram_offset_set(&pe, MVPP2_PRS_SRAM_UDF_TYPE_L3, + MVPP2_ETH_TYPE_LEN, + MVPP2_PRS_SRAM_OP_SEL_UDF_ADD); + + /* Update shadow table and hw entry */ + mvpp2_prs_shadow_set(priv, pe.index, MVPP2_PRS_LU_L2); + priv->prs_shadow[pe.index].udf = MVPP2_PRS_UDF_L2_DEF; + priv->prs_shadow[pe.index].finish = true; + mvpp2_prs_shadow_ri_set(priv, pe.index, MVPP2_PRS_RI_CPU_CODE_RX_SPEC | + MVPP2_PRS_RI_UDF3_RX_SPECIAL, + MVPP2_PRS_RI_CPU_CODE_MASK | + MVPP2_PRS_RI_UDF3_MASK); + mvpp2_prs_hw_write(priv, &pe); + + /* Ethertype: IPv4 with header length >= 5 */ + for (ihl = MVPP2_PRS_IPV4_IHL_MIN; ihl <= MVPP2_PRS_IPV4_IHL_MAX; ihl++) { + tid = mvpp2_prs_tcam_first_free(priv, MVPP2_PE_FIRST_FREE_TID, + MVPP2_PE_LAST_FREE_TID); + if (tid < 0) + return tid; + + memset(&pe, 0, sizeof(pe)); + mvpp2_prs_tcam_lu_set(&pe, MVPP2_PRS_LU_L2); + pe.index = tid; + + mvpp2_prs_match_etype(&pe, 0, ETH_P_IP); + mvpp2_prs_tcam_data_byte_set(&pe, MVPP2_ETH_TYPE_LEN, + MVPP2_PRS_IPV4_HEAD | ihl, + MVPP2_PRS_IPV4_HEAD_MASK | + MVPP2_PRS_IPV4_IHL_MASK); + + mvpp2_prs_sram_next_lu_set(&pe, MVPP2_PRS_LU_IP4); + mvpp2_prs_sram_ri_update(&pe, MVPP2_PRS_RI_L3_IP4, + MVPP2_PRS_RI_L3_PROTO_MASK); + /* goto ipv4 dst-address (skip eth_type + IP-header-size - 4) */ + mvpp2_prs_sram_shift_set(&pe, MVPP2_ETH_TYPE_LEN + + sizeof(struct iphdr) - 4, + MVPP2_PRS_SRAM_OP_SEL_SHIFT_ADD); + /* Set L4 offset */ + mvpp2_prs_sram_offset_set(&pe, MVPP2_PRS_SRAM_UDF_TYPE_L4, + MVPP2_ETH_TYPE_LEN + (ihl * 4), + MVPP2_PRS_SRAM_OP_SEL_UDF_ADD); + + /* Update shadow table and hw entry */ + mvpp2_prs_shadow_set(priv, pe.index, MVPP2_PRS_LU_L2); + priv->prs_shadow[pe.index].udf = MVPP2_PRS_UDF_L2_DEF; + priv->prs_shadow[pe.index].finish = false; + mvpp2_prs_shadow_ri_set(priv, pe.index, MVPP2_PRS_RI_L3_IP4, + MVPP2_PRS_RI_L3_PROTO_MASK); + mvpp2_prs_hw_write(priv, &pe); + } + + /* Ethertype: IPv6 without options */ + tid = mvpp2_prs_tcam_first_free(priv, MVPP2_PE_FIRST_FREE_TID, + MVPP2_PE_LAST_FREE_TID); + if (tid < 0) + return tid; + + memset(&pe, 0, sizeof(pe)); + mvpp2_prs_tcam_lu_set(&pe, MVPP2_PRS_LU_L2); + pe.index = tid; + + mvpp2_prs_match_etype(&pe, 0, ETH_P_IPV6); + + /* Skip DIP of IPV6 header */ + mvpp2_prs_sram_shift_set(&pe, MVPP2_ETH_TYPE_LEN + 8 + + MVPP2_MAX_L3_ADDR_SIZE, + MVPP2_PRS_SRAM_OP_SEL_SHIFT_ADD); + mvpp2_prs_sram_next_lu_set(&pe, MVPP2_PRS_LU_IP6); + mvpp2_prs_sram_ri_update(&pe, MVPP2_PRS_RI_L3_IP6, + MVPP2_PRS_RI_L3_PROTO_MASK); + /* Set L3 offset */ + mvpp2_prs_sram_offset_set(&pe, MVPP2_PRS_SRAM_UDF_TYPE_L3, + MVPP2_ETH_TYPE_LEN, + MVPP2_PRS_SRAM_OP_SEL_UDF_ADD); + + mvpp2_prs_shadow_set(priv, pe.index, MVPP2_PRS_LU_L2); + priv->prs_shadow[pe.index].udf = MVPP2_PRS_UDF_L2_DEF; + priv->prs_shadow[pe.index].finish = false; + mvpp2_prs_shadow_ri_set(priv, pe.index, MVPP2_PRS_RI_L3_IP6, + MVPP2_PRS_RI_L3_PROTO_MASK); + mvpp2_prs_hw_write(priv, &pe); + + /* Default entry for MVPP2_PRS_LU_L2 - Unknown ethtype */ + memset(&pe, 0, sizeof(struct mvpp2_prs_entry)); + mvpp2_prs_tcam_lu_set(&pe, MVPP2_PRS_LU_L2); + pe.index = MVPP2_PE_ETH_TYPE_UN; + + /* Unmask all ports */ + mvpp2_prs_tcam_port_map_set(&pe, MVPP2_PRS_PORT_MASK); + + /* Generate flow in the next iteration*/ + mvpp2_prs_sram_bits_set(&pe, MVPP2_PRS_SRAM_LU_GEN_BIT, 1); + mvpp2_prs_sram_next_lu_set(&pe, MVPP2_PRS_LU_FLOWS); + mvpp2_prs_sram_ri_update(&pe, MVPP2_PRS_RI_L3_UN, + MVPP2_PRS_RI_L3_PROTO_MASK); + /* Set L3 offset even it's unknown L3 */ + mvpp2_prs_sram_offset_set(&pe, MVPP2_PRS_SRAM_UDF_TYPE_L3, + MVPP2_ETH_TYPE_LEN, + MVPP2_PRS_SRAM_OP_SEL_UDF_ADD); + + /* Update shadow table and hw entry */ + mvpp2_prs_shadow_set(priv, pe.index, MVPP2_PRS_LU_L2); + priv->prs_shadow[pe.index].udf = MVPP2_PRS_UDF_L2_DEF; + priv->prs_shadow[pe.index].finish = true; + mvpp2_prs_shadow_ri_set(priv, pe.index, MVPP2_PRS_RI_L3_UN, + MVPP2_PRS_RI_L3_PROTO_MASK); + mvpp2_prs_hw_write(priv, &pe); + + return 0; +} + +/* Configure vlan entries and detect up to 2 successive VLAN tags. + * Possible options: + * 0x8100, 0x88A8 + * 0x8100, 0x8100 + * 0x8100 + * 0x88A8 + */ +static int mvpp2_prs_vlan_init(struct platform_device *pdev, struct mvpp2 *priv) +{ + struct mvpp2_prs_entry pe; + int err; + + priv->prs_double_vlans = devm_kcalloc(&pdev->dev, sizeof(bool), + MVPP2_PRS_DBL_VLANS_MAX, + GFP_KERNEL); + if (!priv->prs_double_vlans) + return -ENOMEM; + + /* Double VLAN: 0x88A8, 0x8100 */ + err = mvpp2_prs_double_vlan_add(priv, ETH_P_8021AD, ETH_P_8021Q, + MVPP2_PRS_PORT_MASK); + if (err) + return err; + + /* Double VLAN: 0x8100, 0x8100 */ + err = mvpp2_prs_double_vlan_add(priv, ETH_P_8021Q, ETH_P_8021Q, + MVPP2_PRS_PORT_MASK); + if (err) + return err; + + /* Single VLAN: 0x88a8 */ + err = mvpp2_prs_vlan_add(priv, ETH_P_8021AD, MVPP2_PRS_SINGLE_VLAN_AI, + MVPP2_PRS_PORT_MASK); + if (err) + return err; + + /* Single VLAN: 0x8100 */ + err = mvpp2_prs_vlan_add(priv, ETH_P_8021Q, MVPP2_PRS_SINGLE_VLAN_AI, + MVPP2_PRS_PORT_MASK); + if (err) + return err; + + /* Set default double vlan entry */ + memset(&pe, 0, sizeof(pe)); + mvpp2_prs_tcam_lu_set(&pe, MVPP2_PRS_LU_VLAN); + pe.index = MVPP2_PE_VLAN_DBL; + + mvpp2_prs_sram_next_lu_set(&pe, MVPP2_PRS_LU_VID); + + /* Clear ai for next iterations */ + mvpp2_prs_sram_ai_update(&pe, 0, MVPP2_PRS_SRAM_AI_MASK); + mvpp2_prs_sram_ri_update(&pe, MVPP2_PRS_RI_VLAN_DOUBLE, + MVPP2_PRS_RI_VLAN_MASK); + + mvpp2_prs_tcam_ai_update(&pe, MVPP2_PRS_DBL_VLAN_AI_BIT, + MVPP2_PRS_DBL_VLAN_AI_BIT); + /* Unmask all ports */ + mvpp2_prs_tcam_port_map_set(&pe, MVPP2_PRS_PORT_MASK); + + /* Update shadow table and hw entry */ + mvpp2_prs_shadow_set(priv, pe.index, MVPP2_PRS_LU_VLAN); + mvpp2_prs_hw_write(priv, &pe); + + /* Set default vlan none entry */ + memset(&pe, 0, sizeof(pe)); + mvpp2_prs_tcam_lu_set(&pe, MVPP2_PRS_LU_VLAN); + pe.index = MVPP2_PE_VLAN_NONE; + + mvpp2_prs_sram_next_lu_set(&pe, MVPP2_PRS_LU_L2); + mvpp2_prs_sram_ri_update(&pe, MVPP2_PRS_RI_VLAN_NONE, + MVPP2_PRS_RI_VLAN_MASK); + + /* Unmask all ports */ + mvpp2_prs_tcam_port_map_set(&pe, MVPP2_PRS_PORT_MASK); + + /* Update shadow table and hw entry */ + mvpp2_prs_shadow_set(priv, pe.index, MVPP2_PRS_LU_VLAN); + mvpp2_prs_hw_write(priv, &pe); + + return 0; +} + +/* Set entries for PPPoE ethertype */ +static int mvpp2_prs_pppoe_init(struct mvpp2 *priv) +{ + struct mvpp2_prs_entry pe; + int tid, ihl; + + /* IPv4 over PPPoE with header length >= 5 */ + for (ihl = MVPP2_PRS_IPV4_IHL_MIN; ihl <= MVPP2_PRS_IPV4_IHL_MAX; ihl++) { + tid = mvpp2_prs_tcam_first_free(priv, MVPP2_PE_FIRST_FREE_TID, + MVPP2_PE_LAST_FREE_TID); + if (tid < 0) + return tid; + + memset(&pe, 0, sizeof(pe)); + mvpp2_prs_tcam_lu_set(&pe, MVPP2_PRS_LU_PPPOE); + pe.index = tid; + + mvpp2_prs_match_etype(&pe, 0, PPP_IP); + mvpp2_prs_tcam_data_byte_set(&pe, MVPP2_ETH_TYPE_LEN, + MVPP2_PRS_IPV4_HEAD | ihl, + MVPP2_PRS_IPV4_HEAD_MASK | + MVPP2_PRS_IPV4_IHL_MASK); + + mvpp2_prs_sram_next_lu_set(&pe, MVPP2_PRS_LU_IP4); + mvpp2_prs_sram_ri_update(&pe, MVPP2_PRS_RI_L3_IP4, + MVPP2_PRS_RI_L3_PROTO_MASK); + /* goto ipv4 dst-address (skip eth_type + IP-header-size - 4) */ + mvpp2_prs_sram_shift_set(&pe, MVPP2_ETH_TYPE_LEN + + sizeof(struct iphdr) - 4, + MVPP2_PRS_SRAM_OP_SEL_SHIFT_ADD); + /* Set L3 offset */ + mvpp2_prs_sram_offset_set(&pe, MVPP2_PRS_SRAM_UDF_TYPE_L3, + MVPP2_ETH_TYPE_LEN, + MVPP2_PRS_SRAM_OP_SEL_UDF_ADD); + /* Set L4 offset */ + mvpp2_prs_sram_offset_set(&pe, MVPP2_PRS_SRAM_UDF_TYPE_L4, + MVPP2_ETH_TYPE_LEN + (ihl * 4), + MVPP2_PRS_SRAM_OP_SEL_UDF_ADD); + + /* Update shadow table and hw entry */ + mvpp2_prs_shadow_set(priv, pe.index, MVPP2_PRS_LU_PPPOE); + mvpp2_prs_hw_write(priv, &pe); + } + + /* IPv6 over PPPoE */ + tid = mvpp2_prs_tcam_first_free(priv, MVPP2_PE_FIRST_FREE_TID, + MVPP2_PE_LAST_FREE_TID); + if (tid < 0) + return tid; + + memset(&pe, 0, sizeof(pe)); + mvpp2_prs_tcam_lu_set(&pe, MVPP2_PRS_LU_PPPOE); + pe.index = tid; + + mvpp2_prs_match_etype(&pe, 0, PPP_IPV6); + + mvpp2_prs_sram_next_lu_set(&pe, MVPP2_PRS_LU_IP6); + mvpp2_prs_sram_ri_update(&pe, MVPP2_PRS_RI_L3_IP6, + MVPP2_PRS_RI_L3_PROTO_MASK); + /* Jump to DIP of IPV6 header */ + mvpp2_prs_sram_shift_set(&pe, MVPP2_ETH_TYPE_LEN + 8 + + MVPP2_MAX_L3_ADDR_SIZE, + MVPP2_PRS_SRAM_OP_SEL_SHIFT_ADD); + /* Set L3 offset */ + mvpp2_prs_sram_offset_set(&pe, MVPP2_PRS_SRAM_UDF_TYPE_L3, + MVPP2_ETH_TYPE_LEN, + MVPP2_PRS_SRAM_OP_SEL_UDF_ADD); + + /* Update shadow table and hw entry */ + mvpp2_prs_shadow_set(priv, pe.index, MVPP2_PRS_LU_PPPOE); + mvpp2_prs_hw_write(priv, &pe); + + /* Non-IP over PPPoE */ + tid = mvpp2_prs_tcam_first_free(priv, MVPP2_PE_FIRST_FREE_TID, + MVPP2_PE_LAST_FREE_TID); + if (tid < 0) + return tid; + + memset(&pe, 0, sizeof(pe)); + mvpp2_prs_tcam_lu_set(&pe, MVPP2_PRS_LU_PPPOE); + pe.index = tid; + + mvpp2_prs_sram_ri_update(&pe, MVPP2_PRS_RI_L3_UN, + MVPP2_PRS_RI_L3_PROTO_MASK); + + /* Finished: go to flowid generation */ + mvpp2_prs_sram_next_lu_set(&pe, MVPP2_PRS_LU_FLOWS); + mvpp2_prs_sram_bits_set(&pe, MVPP2_PRS_SRAM_LU_GEN_BIT, 1); + /* Set L3 offset even if it's unknown L3 */ + mvpp2_prs_sram_offset_set(&pe, MVPP2_PRS_SRAM_UDF_TYPE_L3, + MVPP2_ETH_TYPE_LEN, + MVPP2_PRS_SRAM_OP_SEL_UDF_ADD); + + /* Update shadow table and hw entry */ + mvpp2_prs_shadow_set(priv, pe.index, MVPP2_PRS_LU_PPPOE); + mvpp2_prs_hw_write(priv, &pe); + + return 0; +} + +/* Initialize entries for IPv4 */ +static int mvpp2_prs_ip4_init(struct mvpp2 *priv) +{ + struct mvpp2_prs_entry pe; + int err; + + /* Set entries for TCP, UDP and IGMP over IPv4 */ + err = mvpp2_prs_ip4_proto(priv, IPPROTO_TCP, MVPP2_PRS_RI_L4_TCP, + MVPP2_PRS_RI_L4_PROTO_MASK); + if (err) + return err; + + err = mvpp2_prs_ip4_proto(priv, IPPROTO_UDP, MVPP2_PRS_RI_L4_UDP, + MVPP2_PRS_RI_L4_PROTO_MASK); + if (err) + return err; + + err = mvpp2_prs_ip4_proto(priv, IPPROTO_IGMP, + MVPP2_PRS_RI_CPU_CODE_RX_SPEC | + MVPP2_PRS_RI_UDF3_RX_SPECIAL, + MVPP2_PRS_RI_CPU_CODE_MASK | + MVPP2_PRS_RI_UDF3_MASK); + if (err) + return err; + + /* IPv4 Broadcast */ + err = mvpp2_prs_ip4_cast(priv, MVPP2_PRS_L3_BROAD_CAST); + if (err) + return err; + + /* IPv4 Multicast */ + err = mvpp2_prs_ip4_cast(priv, MVPP2_PRS_L3_MULTI_CAST); + if (err) + return err; + + /* Default IPv4 entry for unknown protocols */ + memset(&pe, 0, sizeof(pe)); + mvpp2_prs_tcam_lu_set(&pe, MVPP2_PRS_LU_IP4); + pe.index = MVPP2_PE_IP4_PROTO_UN; + + /* Finished: go to flowid generation */ + mvpp2_prs_sram_next_lu_set(&pe, MVPP2_PRS_LU_FLOWS); + mvpp2_prs_sram_bits_set(&pe, MVPP2_PRS_SRAM_LU_GEN_BIT, 1); + + /* Set L3 offset */ + mvpp2_prs_sram_offset_set(&pe, MVPP2_PRS_SRAM_UDF_TYPE_L3, -4, + MVPP2_PRS_SRAM_OP_SEL_UDF_ADD); + mvpp2_prs_sram_ai_update(&pe, 0, MVPP2_PRS_IPV4_DIP_AI_BIT); + mvpp2_prs_sram_ri_update(&pe, MVPP2_PRS_RI_L4_OTHER, + MVPP2_PRS_RI_L4_PROTO_MASK); + + mvpp2_prs_tcam_ai_update(&pe, MVPP2_PRS_IPV4_DIP_AI_BIT, + MVPP2_PRS_IPV4_DIP_AI_BIT); + /* Unmask all ports */ + mvpp2_prs_tcam_port_map_set(&pe, MVPP2_PRS_PORT_MASK); + + /* Update shadow table and hw entry */ + mvpp2_prs_shadow_set(priv, pe.index, MVPP2_PRS_LU_IP4); + mvpp2_prs_hw_write(priv, &pe); + + /* Default IPv4 entry for unicast address */ + memset(&pe, 0, sizeof(pe)); + mvpp2_prs_tcam_lu_set(&pe, MVPP2_PRS_LU_IP4); + pe.index = MVPP2_PE_IP4_ADDR_UN; + + /* Go again to ipv4 */ + mvpp2_prs_sram_next_lu_set(&pe, MVPP2_PRS_LU_IP4); + + mvpp2_prs_sram_ai_update(&pe, MVPP2_PRS_IPV4_DIP_AI_BIT, + MVPP2_PRS_IPV4_DIP_AI_BIT); + + /* Shift back to IPv4 proto */ + mvpp2_prs_sram_shift_set(&pe, -12, MVPP2_PRS_SRAM_OP_SEL_SHIFT_ADD); + + mvpp2_prs_sram_ri_update(&pe, MVPP2_PRS_RI_L3_UCAST, + MVPP2_PRS_RI_L3_ADDR_MASK); + mvpp2_prs_tcam_ai_update(&pe, 0, MVPP2_PRS_IPV4_DIP_AI_BIT); + + /* Unmask all ports */ + mvpp2_prs_tcam_port_map_set(&pe, MVPP2_PRS_PORT_MASK); + + /* Update shadow table and hw entry */ + mvpp2_prs_shadow_set(priv, pe.index, MVPP2_PRS_LU_IP4); + mvpp2_prs_hw_write(priv, &pe); + + return 0; +} + +/* Initialize entries for IPv6 */ +static int mvpp2_prs_ip6_init(struct mvpp2 *priv) +{ + struct mvpp2_prs_entry pe; + int tid, err; + + /* Set entries for TCP, UDP and ICMP over IPv6 */ + err = mvpp2_prs_ip6_proto(priv, IPPROTO_TCP, + MVPP2_PRS_RI_L4_TCP, + MVPP2_PRS_RI_L4_PROTO_MASK); + if (err) + return err; + + err = mvpp2_prs_ip6_proto(priv, IPPROTO_UDP, + MVPP2_PRS_RI_L4_UDP, + MVPP2_PRS_RI_L4_PROTO_MASK); + if (err) + return err; + + err = mvpp2_prs_ip6_proto(priv, IPPROTO_ICMPV6, + MVPP2_PRS_RI_CPU_CODE_RX_SPEC | + MVPP2_PRS_RI_UDF3_RX_SPECIAL, + MVPP2_PRS_RI_CPU_CODE_MASK | + MVPP2_PRS_RI_UDF3_MASK); + if (err) + return err; + + /* IPv4 is the last header. This is similar case as 6-TCP or 17-UDP */ + /* Result Info: UDF7=1, DS lite */ + err = mvpp2_prs_ip6_proto(priv, IPPROTO_IPIP, + MVPP2_PRS_RI_UDF7_IP6_LITE, + MVPP2_PRS_RI_UDF7_MASK); + if (err) + return err; + + /* IPv6 multicast */ + err = mvpp2_prs_ip6_cast(priv, MVPP2_PRS_L3_MULTI_CAST); + if (err) + return err; + + /* Entry for checking hop limit */ + tid = mvpp2_prs_tcam_first_free(priv, MVPP2_PE_FIRST_FREE_TID, + MVPP2_PE_LAST_FREE_TID); + if (tid < 0) + return tid; + + memset(&pe, 0, sizeof(pe)); + mvpp2_prs_tcam_lu_set(&pe, MVPP2_PRS_LU_IP6); + pe.index = tid; + + /* Finished: go to flowid generation */ + mvpp2_prs_sram_next_lu_set(&pe, MVPP2_PRS_LU_FLOWS); + mvpp2_prs_sram_bits_set(&pe, MVPP2_PRS_SRAM_LU_GEN_BIT, 1); + mvpp2_prs_sram_ri_update(&pe, MVPP2_PRS_RI_L3_UN | + MVPP2_PRS_RI_DROP_MASK, + MVPP2_PRS_RI_L3_PROTO_MASK | + MVPP2_PRS_RI_DROP_MASK); + + mvpp2_prs_tcam_data_byte_set(&pe, 1, 0x00, MVPP2_PRS_IPV6_HOP_MASK); + mvpp2_prs_tcam_ai_update(&pe, MVPP2_PRS_IPV6_NO_EXT_AI_BIT, + MVPP2_PRS_IPV6_NO_EXT_AI_BIT); + + /* Update shadow table and hw entry */ + mvpp2_prs_shadow_set(priv, pe.index, MVPP2_PRS_LU_IP4); + mvpp2_prs_hw_write(priv, &pe); + + /* Default IPv6 entry for unknown protocols */ + memset(&pe, 0, sizeof(pe)); + mvpp2_prs_tcam_lu_set(&pe, MVPP2_PRS_LU_IP6); + pe.index = MVPP2_PE_IP6_PROTO_UN; + + /* Finished: go to flowid generation */ + mvpp2_prs_sram_next_lu_set(&pe, MVPP2_PRS_LU_FLOWS); + mvpp2_prs_sram_bits_set(&pe, MVPP2_PRS_SRAM_LU_GEN_BIT, 1); + mvpp2_prs_sram_ri_update(&pe, MVPP2_PRS_RI_L4_OTHER, + MVPP2_PRS_RI_L4_PROTO_MASK); + /* Set L4 offset relatively to our current place */ + mvpp2_prs_sram_offset_set(&pe, MVPP2_PRS_SRAM_UDF_TYPE_L4, + sizeof(struct ipv6hdr) - 4, + MVPP2_PRS_SRAM_OP_SEL_UDF_ADD); + + mvpp2_prs_tcam_ai_update(&pe, MVPP2_PRS_IPV6_NO_EXT_AI_BIT, + MVPP2_PRS_IPV6_NO_EXT_AI_BIT); + /* Unmask all ports */ + mvpp2_prs_tcam_port_map_set(&pe, MVPP2_PRS_PORT_MASK); + + /* Update shadow table and hw entry */ + mvpp2_prs_shadow_set(priv, pe.index, MVPP2_PRS_LU_IP4); + mvpp2_prs_hw_write(priv, &pe); + + /* Default IPv6 entry for unknown ext protocols */ + memset(&pe, 0, sizeof(struct mvpp2_prs_entry)); + mvpp2_prs_tcam_lu_set(&pe, MVPP2_PRS_LU_IP6); + pe.index = MVPP2_PE_IP6_EXT_PROTO_UN; + + /* Finished: go to flowid generation */ + mvpp2_prs_sram_next_lu_set(&pe, MVPP2_PRS_LU_FLOWS); + mvpp2_prs_sram_bits_set(&pe, MVPP2_PRS_SRAM_LU_GEN_BIT, 1); + mvpp2_prs_sram_ri_update(&pe, MVPP2_PRS_RI_L4_OTHER, + MVPP2_PRS_RI_L4_PROTO_MASK); + + mvpp2_prs_tcam_ai_update(&pe, MVPP2_PRS_IPV6_EXT_AI_BIT, + MVPP2_PRS_IPV6_EXT_AI_BIT); + /* Unmask all ports */ + mvpp2_prs_tcam_port_map_set(&pe, MVPP2_PRS_PORT_MASK); + + /* Update shadow table and hw entry */ + mvpp2_prs_shadow_set(priv, pe.index, MVPP2_PRS_LU_IP4); + mvpp2_prs_hw_write(priv, &pe); + + /* Default IPv6 entry for unicast address */ + memset(&pe, 0, sizeof(struct mvpp2_prs_entry)); + mvpp2_prs_tcam_lu_set(&pe, MVPP2_PRS_LU_IP6); + pe.index = MVPP2_PE_IP6_ADDR_UN; + + /* Finished: go to IPv6 again */ + mvpp2_prs_sram_next_lu_set(&pe, MVPP2_PRS_LU_IP6); + mvpp2_prs_sram_ri_update(&pe, MVPP2_PRS_RI_L3_UCAST, + MVPP2_PRS_RI_L3_ADDR_MASK); + mvpp2_prs_sram_ai_update(&pe, MVPP2_PRS_IPV6_NO_EXT_AI_BIT, + MVPP2_PRS_IPV6_NO_EXT_AI_BIT); + /* Shift back to IPV6 NH */ + mvpp2_prs_sram_shift_set(&pe, -18, MVPP2_PRS_SRAM_OP_SEL_SHIFT_ADD); + + mvpp2_prs_tcam_ai_update(&pe, 0, MVPP2_PRS_IPV6_NO_EXT_AI_BIT); + /* Unmask all ports */ + mvpp2_prs_tcam_port_map_set(&pe, MVPP2_PRS_PORT_MASK); + + /* Update shadow table and hw entry */ + mvpp2_prs_shadow_set(priv, pe.index, MVPP2_PRS_LU_IP6); + mvpp2_prs_hw_write(priv, &pe); + + return 0; +} + +/* Find tcam entry with matched pair <vid,port> */ +static int mvpp2_prs_vid_range_find(struct mvpp2_port *port, u16 vid, u16 mask) +{ + unsigned char byte[2], enable[2]; + struct mvpp2_prs_entry pe; + u16 rvid, rmask; + int tid; + + /* Go through the all entries with MVPP2_PRS_LU_VID */ + for (tid = MVPP2_PRS_VID_PORT_FIRST(port->id); + tid <= MVPP2_PRS_VID_PORT_LAST(port->id); tid++) { + if (!port->priv->prs_shadow[tid].valid || + port->priv->prs_shadow[tid].lu != MVPP2_PRS_LU_VID) + continue; + + mvpp2_prs_init_from_hw(port->priv, &pe, tid); + + mvpp2_prs_tcam_data_byte_get(&pe, 2, &byte[0], &enable[0]); + mvpp2_prs_tcam_data_byte_get(&pe, 3, &byte[1], &enable[1]); + + rvid = ((byte[0] & 0xf) << 8) + byte[1]; + rmask = ((enable[0] & 0xf) << 8) + enable[1]; + + if (rvid != vid || rmask != mask) + continue; + + return tid; + } + + return -ENOENT; +} + +/* Write parser entry for VID filtering */ +int mvpp2_prs_vid_entry_add(struct mvpp2_port *port, u16 vid) +{ + unsigned int vid_start = MVPP2_PE_VID_FILT_RANGE_START + + port->id * MVPP2_PRS_VLAN_FILT_MAX; + unsigned int mask = 0xfff, reg_val, shift; + struct mvpp2 *priv = port->priv; + struct mvpp2_prs_entry pe; + int tid; + + memset(&pe, 0, sizeof(pe)); + + /* Scan TCAM and see if entry with this <vid,port> already exist */ + tid = mvpp2_prs_vid_range_find(port, vid, mask); + + reg_val = mvpp2_read(priv, MVPP2_MH_REG(port->id)); + if (reg_val & MVPP2_DSA_EXTENDED) + shift = MVPP2_VLAN_TAG_EDSA_LEN; + else + shift = MVPP2_VLAN_TAG_LEN; + + /* No such entry */ + if (tid < 0) { + + /* Go through all entries from first to last in vlan range */ + tid = mvpp2_prs_tcam_first_free(priv, vid_start, + vid_start + + MVPP2_PRS_VLAN_FILT_MAX_ENTRY); + + /* There isn't room for a new VID filter */ + if (tid < 0) + return tid; + + mvpp2_prs_tcam_lu_set(&pe, MVPP2_PRS_LU_VID); + pe.index = tid; + + /* Mask all ports */ + mvpp2_prs_tcam_port_map_set(&pe, 0); + } else { + mvpp2_prs_init_from_hw(priv, &pe, tid); + } + + /* Enable the current port */ + mvpp2_prs_tcam_port_set(&pe, port->id, true); + + /* Continue - set next lookup */ + mvpp2_prs_sram_next_lu_set(&pe, MVPP2_PRS_LU_L2); + + /* Skip VLAN header - Set offset to 4 or 8 bytes */ + mvpp2_prs_sram_shift_set(&pe, shift, MVPP2_PRS_SRAM_OP_SEL_SHIFT_ADD); + + /* Set match on VID */ + mvpp2_prs_match_vid(&pe, MVPP2_PRS_VID_TCAM_BYTE, vid); + + /* Clear all ai bits for next iteration */ + mvpp2_prs_sram_ai_update(&pe, 0, MVPP2_PRS_SRAM_AI_MASK); + + /* Update shadow table */ + mvpp2_prs_shadow_set(priv, pe.index, MVPP2_PRS_LU_VID); + mvpp2_prs_hw_write(priv, &pe); + + return 0; +} + +/* Write parser entry for VID filtering */ +void mvpp2_prs_vid_entry_remove(struct mvpp2_port *port, u16 vid) +{ + struct mvpp2 *priv = port->priv; + int tid; + + /* Scan TCAM and see if entry with this <vid,port> already exist */ + tid = mvpp2_prs_vid_range_find(port, vid, 0xfff); + + /* No such entry */ + if (tid < 0) + return; + + mvpp2_prs_hw_inv(priv, tid); + priv->prs_shadow[tid].valid = false; +} + +/* Remove all existing VID filters on this port */ +void mvpp2_prs_vid_remove_all(struct mvpp2_port *port) +{ + struct mvpp2 *priv = port->priv; + int tid; + + for (tid = MVPP2_PRS_VID_PORT_FIRST(port->id); + tid <= MVPP2_PRS_VID_PORT_LAST(port->id); tid++) { + if (priv->prs_shadow[tid].valid) { + mvpp2_prs_hw_inv(priv, tid); + priv->prs_shadow[tid].valid = false; + } + } +} + +/* Remove VID filering entry for this port */ +void mvpp2_prs_vid_disable_filtering(struct mvpp2_port *port) +{ + unsigned int tid = MVPP2_PRS_VID_PORT_DFLT(port->id); + struct mvpp2 *priv = port->priv; + + /* Invalidate the guard entry */ + mvpp2_prs_hw_inv(priv, tid); + + priv->prs_shadow[tid].valid = false; +} + +/* Add guard entry that drops packets when no VID is matched on this port */ +void mvpp2_prs_vid_enable_filtering(struct mvpp2_port *port) +{ + unsigned int tid = MVPP2_PRS_VID_PORT_DFLT(port->id); + struct mvpp2 *priv = port->priv; + unsigned int reg_val, shift; + struct mvpp2_prs_entry pe; + + if (priv->prs_shadow[tid].valid) + return; + + memset(&pe, 0, sizeof(pe)); + + pe.index = tid; + + reg_val = mvpp2_read(priv, MVPP2_MH_REG(port->id)); + if (reg_val & MVPP2_DSA_EXTENDED) + shift = MVPP2_VLAN_TAG_EDSA_LEN; + else + shift = MVPP2_VLAN_TAG_LEN; + + mvpp2_prs_tcam_lu_set(&pe, MVPP2_PRS_LU_VID); + + /* Mask all ports */ + mvpp2_prs_tcam_port_map_set(&pe, 0); + + /* Update port mask */ + mvpp2_prs_tcam_port_set(&pe, port->id, true); + + /* Continue - set next lookup */ + mvpp2_prs_sram_next_lu_set(&pe, MVPP2_PRS_LU_L2); + + /* Skip VLAN header - Set offset to 4 or 8 bytes */ + mvpp2_prs_sram_shift_set(&pe, shift, MVPP2_PRS_SRAM_OP_SEL_SHIFT_ADD); + + /* Drop VLAN packets that don't belong to any VIDs on this port */ + mvpp2_prs_sram_ri_update(&pe, MVPP2_PRS_RI_DROP_MASK, + MVPP2_PRS_RI_DROP_MASK); + + /* Clear all ai bits for next iteration */ + mvpp2_prs_sram_ai_update(&pe, 0, MVPP2_PRS_SRAM_AI_MASK); + + /* Update shadow table */ + mvpp2_prs_shadow_set(priv, pe.index, MVPP2_PRS_LU_VID); + mvpp2_prs_hw_write(priv, &pe); +} + +/* Parser default initialization */ +int mvpp2_prs_default_init(struct platform_device *pdev, struct mvpp2 *priv) +{ + int err, index, i; + + /* Enable tcam table */ + mvpp2_write(priv, MVPP2_PRS_TCAM_CTRL_REG, MVPP2_PRS_TCAM_EN_MASK); + + /* Clear all tcam and sram entries */ + for (index = 0; index < MVPP2_PRS_TCAM_SRAM_SIZE; index++) { + mvpp2_write(priv, MVPP2_PRS_TCAM_IDX_REG, index); + for (i = 0; i < MVPP2_PRS_TCAM_WORDS; i++) + mvpp2_write(priv, MVPP2_PRS_TCAM_DATA_REG(i), 0); + + mvpp2_write(priv, MVPP2_PRS_SRAM_IDX_REG, index); + for (i = 0; i < MVPP2_PRS_SRAM_WORDS; i++) + mvpp2_write(priv, MVPP2_PRS_SRAM_DATA_REG(i), 0); + } + + /* Invalidate all tcam entries */ + for (index = 0; index < MVPP2_PRS_TCAM_SRAM_SIZE; index++) + mvpp2_prs_hw_inv(priv, index); + + priv->prs_shadow = devm_kcalloc(&pdev->dev, MVPP2_PRS_TCAM_SRAM_SIZE, + sizeof(*priv->prs_shadow), + GFP_KERNEL); + if (!priv->prs_shadow) + return -ENOMEM; + + /* Always start from lookup = 0 */ + for (index = 0; index < MVPP2_MAX_PORTS; index++) + mvpp2_prs_hw_port_init(priv, index, MVPP2_PRS_LU_MH, + MVPP2_PRS_PORT_LU_MAX, 0); + + mvpp2_prs_def_flow_init(priv); + + mvpp2_prs_mh_init(priv); + + mvpp2_prs_mac_init(priv); + + mvpp2_prs_dsa_init(priv); + + mvpp2_prs_vid_init(priv); + + err = mvpp2_prs_etype_init(priv); + if (err) + return err; + + err = mvpp2_prs_vlan_init(pdev, priv); + if (err) + return err; + + err = mvpp2_prs_pppoe_init(priv); + if (err) + return err; + + err = mvpp2_prs_ip6_init(priv); + if (err) + return err; + + err = mvpp2_prs_ip4_init(priv); + if (err) + return err; + + return 0; +} + +/* Compare MAC DA with tcam entry data */ +static bool mvpp2_prs_mac_range_equals(struct mvpp2_prs_entry *pe, + const u8 *da, unsigned char *mask) +{ + unsigned char tcam_byte, tcam_mask; + int index; + + for (index = 0; index < ETH_ALEN; index++) { + mvpp2_prs_tcam_data_byte_get(pe, index, &tcam_byte, &tcam_mask); + if (tcam_mask != mask[index]) + return false; + + if ((tcam_mask & tcam_byte) != (da[index] & mask[index])) + return false; + } + + return true; +} + +/* Find tcam entry with matched pair <MAC DA, port> */ +static int +mvpp2_prs_mac_da_range_find(struct mvpp2 *priv, int pmap, const u8 *da, + unsigned char *mask, int udf_type) +{ + struct mvpp2_prs_entry pe; + int tid; + + /* Go through the all entires with MVPP2_PRS_LU_MAC */ + for (tid = MVPP2_PE_MAC_RANGE_START; + tid <= MVPP2_PE_MAC_RANGE_END; tid++) { + unsigned int entry_pmap; + + if (!priv->prs_shadow[tid].valid || + (priv->prs_shadow[tid].lu != MVPP2_PRS_LU_MAC) || + (priv->prs_shadow[tid].udf != udf_type)) + continue; + + mvpp2_prs_init_from_hw(priv, &pe, tid); + entry_pmap = mvpp2_prs_tcam_port_map_get(&pe); + + if (mvpp2_prs_mac_range_equals(&pe, da, mask) && + entry_pmap == pmap) + return tid; + } + + return -ENOENT; +} + +/* Update parser's mac da entry */ +int mvpp2_prs_mac_da_accept(struct mvpp2_port *port, const u8 *da, bool add) +{ + unsigned char mask[ETH_ALEN] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff }; + struct mvpp2 *priv = port->priv; + unsigned int pmap, len, ri; + struct mvpp2_prs_entry pe; + int tid; + + memset(&pe, 0, sizeof(pe)); + + /* Scan TCAM and see if entry with this <MAC DA, port> already exist */ + tid = mvpp2_prs_mac_da_range_find(priv, BIT(port->id), da, mask, + MVPP2_PRS_UDF_MAC_DEF); + + /* No such entry */ + if (tid < 0) { + if (!add) + return 0; + + /* Create new TCAM entry */ + /* Go through the all entries from first to last */ + tid = mvpp2_prs_tcam_first_free(priv, + MVPP2_PE_MAC_RANGE_START, + MVPP2_PE_MAC_RANGE_END); + if (tid < 0) + return tid; + + pe.index = tid; + + /* Mask all ports */ + mvpp2_prs_tcam_port_map_set(&pe, 0); + } else { + mvpp2_prs_init_from_hw(priv, &pe, tid); + } + + mvpp2_prs_tcam_lu_set(&pe, MVPP2_PRS_LU_MAC); + + /* Update port mask */ + mvpp2_prs_tcam_port_set(&pe, port->id, add); + + /* Invalidate the entry if no ports are left enabled */ + pmap = mvpp2_prs_tcam_port_map_get(&pe); + if (pmap == 0) { + if (add) + return -EINVAL; + + mvpp2_prs_hw_inv(priv, pe.index); + priv->prs_shadow[pe.index].valid = false; + return 0; + } + + /* Continue - set next lookup */ + mvpp2_prs_sram_next_lu_set(&pe, MVPP2_PRS_LU_DSA); + + /* Set match on DA */ + len = ETH_ALEN; + while (len--) + mvpp2_prs_tcam_data_byte_set(&pe, len, da[len], 0xff); + + /* Set result info bits */ + if (is_broadcast_ether_addr(da)) { + ri = MVPP2_PRS_RI_L2_BCAST; + } else if (is_multicast_ether_addr(da)) { + ri = MVPP2_PRS_RI_L2_MCAST; + } else { + ri = MVPP2_PRS_RI_L2_UCAST; + + if (ether_addr_equal(da, port->dev->dev_addr)) + ri |= MVPP2_PRS_RI_MAC_ME_MASK; + } + + mvpp2_prs_sram_ri_update(&pe, ri, MVPP2_PRS_RI_L2_CAST_MASK | + MVPP2_PRS_RI_MAC_ME_MASK); + mvpp2_prs_shadow_ri_set(priv, pe.index, ri, MVPP2_PRS_RI_L2_CAST_MASK | + MVPP2_PRS_RI_MAC_ME_MASK); + + /* Shift to ethertype */ + mvpp2_prs_sram_shift_set(&pe, 2 * ETH_ALEN, + MVPP2_PRS_SRAM_OP_SEL_SHIFT_ADD); + + /* Update shadow table and hw entry */ + priv->prs_shadow[pe.index].udf = MVPP2_PRS_UDF_MAC_DEF; + mvpp2_prs_shadow_set(priv, pe.index, MVPP2_PRS_LU_MAC); + mvpp2_prs_hw_write(priv, &pe); + + return 0; +} + +int mvpp2_prs_update_mac_da(struct net_device *dev, const u8 *da) +{ + struct mvpp2_port *port = netdev_priv(dev); + int err; + + /* Remove old parser entry */ + err = mvpp2_prs_mac_da_accept(port, dev->dev_addr, false); + if (err) + return err; + + /* Add new parser entry */ + err = mvpp2_prs_mac_da_accept(port, da, true); + if (err) + return err; + + /* Set addr in the device */ + eth_hw_addr_set(dev, da); + + return 0; +} + +void mvpp2_prs_mac_del_all(struct mvpp2_port *port) +{ + struct mvpp2 *priv = port->priv; + struct mvpp2_prs_entry pe; + unsigned long pmap; + int index, tid; + + for (tid = MVPP2_PE_MAC_RANGE_START; + tid <= MVPP2_PE_MAC_RANGE_END; tid++) { + unsigned char da[ETH_ALEN], da_mask[ETH_ALEN]; + + if (!priv->prs_shadow[tid].valid || + (priv->prs_shadow[tid].lu != MVPP2_PRS_LU_MAC) || + (priv->prs_shadow[tid].udf != MVPP2_PRS_UDF_MAC_DEF)) + continue; + + mvpp2_prs_init_from_hw(priv, &pe, tid); + + pmap = mvpp2_prs_tcam_port_map_get(&pe); + + /* We only want entries active on this port */ + if (!test_bit(port->id, &pmap)) + continue; + + /* Read mac addr from entry */ + for (index = 0; index < ETH_ALEN; index++) + mvpp2_prs_tcam_data_byte_get(&pe, index, &da[index], + &da_mask[index]); + + /* Special cases : Don't remove broadcast and port's own + * address + */ + if (is_broadcast_ether_addr(da) || + ether_addr_equal(da, port->dev->dev_addr)) + continue; + + /* Remove entry from TCAM */ + mvpp2_prs_mac_da_accept(port, da, false); + } +} + +int mvpp2_prs_tag_mode_set(struct mvpp2 *priv, int port, int type) +{ + switch (type) { + case MVPP2_TAG_TYPE_EDSA: + /* Add port to EDSA entries */ + mvpp2_prs_dsa_tag_set(priv, port, true, + MVPP2_PRS_TAGGED, MVPP2_PRS_EDSA); + mvpp2_prs_dsa_tag_set(priv, port, true, + MVPP2_PRS_UNTAGGED, MVPP2_PRS_EDSA); + /* Remove port from DSA entries */ + mvpp2_prs_dsa_tag_set(priv, port, false, + MVPP2_PRS_TAGGED, MVPP2_PRS_DSA); + mvpp2_prs_dsa_tag_set(priv, port, false, + MVPP2_PRS_UNTAGGED, MVPP2_PRS_DSA); + break; + + case MVPP2_TAG_TYPE_DSA: + /* Add port to DSA entries */ + mvpp2_prs_dsa_tag_set(priv, port, true, + MVPP2_PRS_TAGGED, MVPP2_PRS_DSA); + mvpp2_prs_dsa_tag_set(priv, port, true, + MVPP2_PRS_UNTAGGED, MVPP2_PRS_DSA); + /* Remove port from EDSA entries */ + mvpp2_prs_dsa_tag_set(priv, port, false, + MVPP2_PRS_TAGGED, MVPP2_PRS_EDSA); + mvpp2_prs_dsa_tag_set(priv, port, false, + MVPP2_PRS_UNTAGGED, MVPP2_PRS_EDSA); + break; + + case MVPP2_TAG_TYPE_MH: + case MVPP2_TAG_TYPE_NONE: + /* Remove port form EDSA and DSA entries */ + mvpp2_prs_dsa_tag_set(priv, port, false, + MVPP2_PRS_TAGGED, MVPP2_PRS_DSA); + mvpp2_prs_dsa_tag_set(priv, port, false, + MVPP2_PRS_UNTAGGED, MVPP2_PRS_DSA); + mvpp2_prs_dsa_tag_set(priv, port, false, + MVPP2_PRS_TAGGED, MVPP2_PRS_EDSA); + mvpp2_prs_dsa_tag_set(priv, port, false, + MVPP2_PRS_UNTAGGED, MVPP2_PRS_EDSA); + break; + + default: + if ((type < 0) || (type > MVPP2_TAG_TYPE_EDSA)) + return -EINVAL; + } + + return 0; +} + +int mvpp2_prs_add_flow(struct mvpp2 *priv, int flow, u32 ri, u32 ri_mask) +{ + struct mvpp2_prs_entry pe; + u8 *ri_byte, *ri_byte_mask; + int tid, i; + + memset(&pe, 0, sizeof(pe)); + + tid = mvpp2_prs_tcam_first_free(priv, + MVPP2_PE_LAST_FREE_TID, + MVPP2_PE_FIRST_FREE_TID); + if (tid < 0) + return tid; + + pe.index = tid; + + ri_byte = (u8 *)&ri; + ri_byte_mask = (u8 *)&ri_mask; + + mvpp2_prs_sram_ai_update(&pe, flow, MVPP2_PRS_FLOW_ID_MASK); + mvpp2_prs_sram_bits_set(&pe, MVPP2_PRS_SRAM_LU_DONE_BIT, 1); + + for (i = 0; i < 4; i++) { + mvpp2_prs_tcam_data_byte_set(&pe, i, ri_byte[i], + ri_byte_mask[i]); + } + + mvpp2_prs_shadow_set(priv, pe.index, MVPP2_PRS_LU_FLOWS); + mvpp2_prs_tcam_lu_set(&pe, MVPP2_PRS_LU_FLOWS); + mvpp2_prs_tcam_port_map_set(&pe, MVPP2_PRS_PORT_MASK); + mvpp2_prs_hw_write(priv, &pe); + + return 0; +} + +/* Set prs flow for the port */ +int mvpp2_prs_def_flow(struct mvpp2_port *port) +{ + struct mvpp2_prs_entry pe; + int tid; + + memset(&pe, 0, sizeof(pe)); + + tid = mvpp2_prs_flow_find(port->priv, port->id); + + /* Such entry not exist */ + if (tid < 0) { + /* Go through the all entires from last to first */ + tid = mvpp2_prs_tcam_first_free(port->priv, + MVPP2_PE_LAST_FREE_TID, + MVPP2_PE_FIRST_FREE_TID); + if (tid < 0) + return tid; + + pe.index = tid; + + /* Set flow ID*/ + mvpp2_prs_sram_ai_update(&pe, port->id, MVPP2_PRS_FLOW_ID_MASK); + mvpp2_prs_sram_bits_set(&pe, MVPP2_PRS_SRAM_LU_DONE_BIT, 1); + + /* Update shadow table */ + mvpp2_prs_shadow_set(port->priv, pe.index, MVPP2_PRS_LU_FLOWS); + } else { + mvpp2_prs_init_from_hw(port->priv, &pe, tid); + } + + mvpp2_prs_tcam_lu_set(&pe, MVPP2_PRS_LU_FLOWS); + mvpp2_prs_tcam_port_map_set(&pe, (1 << port->id)); + mvpp2_prs_hw_write(port->priv, &pe); + + return 0; +} + +int mvpp2_prs_hits(struct mvpp2 *priv, int index) +{ + u32 val; + + if (index > MVPP2_PRS_TCAM_SRAM_SIZE) + return -EINVAL; + + mvpp2_write(priv, MVPP2_PRS_TCAM_HIT_IDX_REG, index); + + val = mvpp2_read(priv, MVPP2_PRS_TCAM_HIT_CNT_REG); + + val &= MVPP2_PRS_TCAM_HIT_CNT_MASK; + + return val; +} diff --git a/drivers/net/ethernet/marvell/mvpp2/mvpp2_prs.h b/drivers/net/ethernet/marvell/mvpp2/mvpp2_prs.h new file mode 100644 index 000000000..5ce5907be --- /dev/null +++ b/drivers/net/ethernet/marvell/mvpp2/mvpp2_prs.h @@ -0,0 +1,335 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * Header Parser definitions for Marvell PPv2 Network Controller + * + * Copyright (C) 2014 Marvell + * + * Marcin Wojtas <mw@semihalf.com> + */ +#ifndef _MVPP2_PRS_H_ +#define _MVPP2_PRS_H_ + +#include <linux/kernel.h> +#include <linux/netdevice.h> +#include <linux/platform_device.h> + +#include "mvpp2.h" + +/* Parser constants */ +#define MVPP2_PRS_TCAM_SRAM_SIZE 256 +#define MVPP2_PRS_TCAM_WORDS 6 +#define MVPP2_PRS_SRAM_WORDS 4 +#define MVPP2_PRS_FLOW_ID_SIZE 64 +#define MVPP2_PRS_FLOW_ID_MASK 0x3f +#define MVPP2_PRS_TCAM_ENTRY_INVALID 1 +#define MVPP2_PRS_TCAM_DSA_TAGGED_BIT BIT(5) +#define MVPP2_PRS_IPV4_HEAD 0x40 +#define MVPP2_PRS_IPV4_HEAD_MASK 0xf0 +#define MVPP2_PRS_IPV4_MC 0xe0 +#define MVPP2_PRS_IPV4_MC_MASK 0xf0 +#define MVPP2_PRS_IPV4_BC_MASK 0xff +#define MVPP2_PRS_IPV4_IHL_MIN 0x5 +#define MVPP2_PRS_IPV4_IHL_MAX 0xf +#define MVPP2_PRS_IPV4_IHL_MASK 0xf +#define MVPP2_PRS_IPV6_MC 0xff +#define MVPP2_PRS_IPV6_MC_MASK 0xff +#define MVPP2_PRS_IPV6_HOP_MASK 0xff +#define MVPP2_PRS_TCAM_PROTO_MASK 0xff +#define MVPP2_PRS_TCAM_PROTO_MASK_L 0x3f +#define MVPP2_PRS_DBL_VLANS_MAX 100 +#define MVPP2_PRS_CAST_MASK BIT(0) +#define MVPP2_PRS_MCAST_VAL BIT(0) +#define MVPP2_PRS_UCAST_VAL 0x0 + +/* Tcam structure: + * - lookup ID - 4 bits + * - port ID - 1 byte + * - additional information - 1 byte + * - header data - 8 bytes + * The fields are represented by MVPP2_PRS_TCAM_DATA_REG(5)->(0). + */ +#define MVPP2_PRS_AI_BITS 8 +#define MVPP2_PRS_AI_MASK 0xff +#define MVPP2_PRS_PORT_MASK 0xff +#define MVPP2_PRS_LU_MASK 0xf + +/* TCAM entries in registers are accessed using 16 data bits + 16 enable bits */ +#define MVPP2_PRS_BYTE_TO_WORD(byte) ((byte) / 2) +#define MVPP2_PRS_BYTE_IN_WORD(byte) ((byte) % 2) + +#define MVPP2_PRS_TCAM_EN(data) ((data) << 16) +#define MVPP2_PRS_TCAM_AI_WORD 4 +#define MVPP2_PRS_TCAM_AI(ai) (ai) +#define MVPP2_PRS_TCAM_AI_EN(ai) MVPP2_PRS_TCAM_EN(MVPP2_PRS_TCAM_AI(ai)) +#define MVPP2_PRS_TCAM_PORT_WORD 4 +#define MVPP2_PRS_TCAM_PORT(p) ((p) << 8) +#define MVPP2_PRS_TCAM_PORT_EN(p) MVPP2_PRS_TCAM_EN(MVPP2_PRS_TCAM_PORT(p)) +#define MVPP2_PRS_TCAM_LU_WORD 5 +#define MVPP2_PRS_TCAM_LU(lu) (lu) +#define MVPP2_PRS_TCAM_LU_EN(lu) MVPP2_PRS_TCAM_EN(MVPP2_PRS_TCAM_LU(lu)) +#define MVPP2_PRS_TCAM_INV_WORD 5 + +#define MVPP2_PRS_VID_TCAM_BYTE 2 + +/* TCAM range for unicast and multicast filtering. We have 25 entries per port, + * with 4 dedicated to UC filtering and the rest to multicast filtering. + * Additionnally we reserve one entry for the broadcast address, and one for + * each port's own address. + */ +#define MVPP2_PRS_MAC_UC_MC_FILT_MAX 25 +#define MVPP2_PRS_MAC_RANGE_SIZE 80 + +/* Number of entries per port dedicated to UC and MC filtering */ +#define MVPP2_PRS_MAC_UC_FILT_MAX 4 +#define MVPP2_PRS_MAC_MC_FILT_MAX (MVPP2_PRS_MAC_UC_MC_FILT_MAX - \ + MVPP2_PRS_MAC_UC_FILT_MAX) + +/* There is a TCAM range reserved for VLAN filtering entries, range size is 33 + * 10 VLAN ID filter entries per port + * 1 default VLAN filter entry per port + * It is assumed that there are 3 ports for filter, not including loopback port + */ +#define MVPP2_PRS_VLAN_FILT_MAX 11 +#define MVPP2_PRS_VLAN_FILT_RANGE_SIZE 33 + +#define MVPP2_PRS_VLAN_FILT_MAX_ENTRY (MVPP2_PRS_VLAN_FILT_MAX - 2) +#define MVPP2_PRS_VLAN_FILT_DFLT_ENTRY (MVPP2_PRS_VLAN_FILT_MAX - 1) + +/* Tcam entries ID */ +#define MVPP2_PE_DROP_ALL 0 +#define MVPP2_PE_FIRST_FREE_TID 1 + +/* MAC filtering range */ +#define MVPP2_PE_MAC_RANGE_END (MVPP2_PE_VID_FILT_RANGE_START - 1) +#define MVPP2_PE_MAC_RANGE_START (MVPP2_PE_MAC_RANGE_END - \ + MVPP2_PRS_MAC_RANGE_SIZE + 1) +/* VLAN filtering range */ +#define MVPP2_PE_VID_FILT_RANGE_END (MVPP2_PRS_TCAM_SRAM_SIZE - 32) +#define MVPP2_PE_VID_FILT_RANGE_START (MVPP2_PE_VID_FILT_RANGE_END - \ + MVPP2_PRS_VLAN_FILT_RANGE_SIZE + 1) +#define MVPP2_PE_LAST_FREE_TID (MVPP2_PE_MAC_RANGE_START - 1) +#define MVPP2_PE_MH_SKIP_PRS (MVPP2_PRS_TCAM_SRAM_SIZE - 31) +#define MVPP2_PE_IP6_EXT_PROTO_UN (MVPP2_PRS_TCAM_SRAM_SIZE - 30) +#define MVPP2_PE_IP6_ADDR_UN (MVPP2_PRS_TCAM_SRAM_SIZE - 29) +#define MVPP2_PE_IP4_ADDR_UN (MVPP2_PRS_TCAM_SRAM_SIZE - 28) +#define MVPP2_PE_LAST_DEFAULT_FLOW (MVPP2_PRS_TCAM_SRAM_SIZE - 27) +#define MVPP2_PE_FIRST_DEFAULT_FLOW (MVPP2_PRS_TCAM_SRAM_SIZE - 22) +#define MVPP2_PE_EDSA_TAGGED (MVPP2_PRS_TCAM_SRAM_SIZE - 21) +#define MVPP2_PE_EDSA_UNTAGGED (MVPP2_PRS_TCAM_SRAM_SIZE - 20) +#define MVPP2_PE_DSA_TAGGED (MVPP2_PRS_TCAM_SRAM_SIZE - 19) +#define MVPP2_PE_DSA_UNTAGGED (MVPP2_PRS_TCAM_SRAM_SIZE - 18) +#define MVPP2_PE_ETYPE_EDSA_TAGGED (MVPP2_PRS_TCAM_SRAM_SIZE - 17) +#define MVPP2_PE_ETYPE_EDSA_UNTAGGED (MVPP2_PRS_TCAM_SRAM_SIZE - 16) +#define MVPP2_PE_ETYPE_DSA_TAGGED (MVPP2_PRS_TCAM_SRAM_SIZE - 15) +#define MVPP2_PE_ETYPE_DSA_UNTAGGED (MVPP2_PRS_TCAM_SRAM_SIZE - 14) +#define MVPP2_PE_MH_DEFAULT (MVPP2_PRS_TCAM_SRAM_SIZE - 13) +#define MVPP2_PE_DSA_DEFAULT (MVPP2_PRS_TCAM_SRAM_SIZE - 12) +#define MVPP2_PE_IP6_PROTO_UN (MVPP2_PRS_TCAM_SRAM_SIZE - 11) +#define MVPP2_PE_IP4_PROTO_UN (MVPP2_PRS_TCAM_SRAM_SIZE - 10) +#define MVPP2_PE_ETH_TYPE_UN (MVPP2_PRS_TCAM_SRAM_SIZE - 9) +#define MVPP2_PE_VID_FLTR_DEFAULT (MVPP2_PRS_TCAM_SRAM_SIZE - 8) +#define MVPP2_PE_VID_EDSA_FLTR_DEFAULT (MVPP2_PRS_TCAM_SRAM_SIZE - 7) +#define MVPP2_PE_VLAN_DBL (MVPP2_PRS_TCAM_SRAM_SIZE - 6) +#define MVPP2_PE_VLAN_NONE (MVPP2_PRS_TCAM_SRAM_SIZE - 5) +#define MVPP2_PE_FC_DROP (MVPP2_PRS_TCAM_SRAM_SIZE - 4) +#define MVPP2_PE_MAC_MC_PROMISCUOUS (MVPP2_PRS_TCAM_SRAM_SIZE - 3) +#define MVPP2_PE_MAC_UC_PROMISCUOUS (MVPP2_PRS_TCAM_SRAM_SIZE - 2) +#define MVPP2_PE_MAC_NON_PROMISCUOUS (MVPP2_PRS_TCAM_SRAM_SIZE - 1) + +#define MVPP2_PRS_VID_PORT_FIRST(port) (MVPP2_PE_VID_FILT_RANGE_START + \ + ((port) * MVPP2_PRS_VLAN_FILT_MAX)) +#define MVPP2_PRS_VID_PORT_LAST(port) (MVPP2_PRS_VID_PORT_FIRST(port) \ + + MVPP2_PRS_VLAN_FILT_MAX_ENTRY) +/* Index of default vid filter for given port */ +#define MVPP2_PRS_VID_PORT_DFLT(port) (MVPP2_PRS_VID_PORT_FIRST(port) \ + + MVPP2_PRS_VLAN_FILT_DFLT_ENTRY) + +/* Sram structure + * The fields are represented by MVPP2_PRS_TCAM_DATA_REG(3)->(0). + */ +#define MVPP2_PRS_SRAM_RI_OFFS 0 +#define MVPP2_PRS_SRAM_RI_WORD 0 +#define MVPP2_PRS_SRAM_RI_CTRL_OFFS 32 +#define MVPP2_PRS_SRAM_RI_CTRL_WORD 1 +#define MVPP2_PRS_SRAM_RI_CTRL_BITS 32 +#define MVPP2_PRS_SRAM_SHIFT_OFFS 64 +#define MVPP2_PRS_SRAM_SHIFT_SIGN_BIT 72 +#define MVPP2_PRS_SRAM_SHIFT_MASK 0xff +#define MVPP2_PRS_SRAM_UDF_OFFS 73 +#define MVPP2_PRS_SRAM_UDF_BITS 8 +#define MVPP2_PRS_SRAM_UDF_MASK 0xff +#define MVPP2_PRS_SRAM_UDF_SIGN_BIT 81 +#define MVPP2_PRS_SRAM_UDF_TYPE_OFFS 82 +#define MVPP2_PRS_SRAM_UDF_TYPE_MASK 0x7 +#define MVPP2_PRS_SRAM_UDF_TYPE_L3 1 +#define MVPP2_PRS_SRAM_UDF_TYPE_L4 4 +#define MVPP2_PRS_SRAM_OP_SEL_SHIFT_OFFS 85 +#define MVPP2_PRS_SRAM_OP_SEL_SHIFT_MASK 0x3 +#define MVPP2_PRS_SRAM_OP_SEL_SHIFT_ADD 1 +#define MVPP2_PRS_SRAM_OP_SEL_SHIFT_IP4_ADD 2 +#define MVPP2_PRS_SRAM_OP_SEL_SHIFT_IP6_ADD 3 +#define MVPP2_PRS_SRAM_OP_SEL_UDF_OFFS 87 +#define MVPP2_PRS_SRAM_OP_SEL_UDF_BITS 2 +#define MVPP2_PRS_SRAM_OP_SEL_UDF_MASK 0x3 +#define MVPP2_PRS_SRAM_OP_SEL_UDF_ADD 0 +#define MVPP2_PRS_SRAM_OP_SEL_UDF_IP4_ADD 2 +#define MVPP2_PRS_SRAM_OP_SEL_UDF_IP6_ADD 3 +#define MVPP2_PRS_SRAM_OP_SEL_BASE_OFFS 89 +#define MVPP2_PRS_SRAM_AI_OFFS 90 +#define MVPP2_PRS_SRAM_AI_CTRL_OFFS 98 +#define MVPP2_PRS_SRAM_AI_CTRL_BITS 8 +#define MVPP2_PRS_SRAM_AI_MASK 0xff +#define MVPP2_PRS_SRAM_NEXT_LU_OFFS 106 +#define MVPP2_PRS_SRAM_NEXT_LU_MASK 0xf +#define MVPP2_PRS_SRAM_LU_DONE_BIT 110 +#define MVPP2_PRS_SRAM_LU_GEN_BIT 111 + +/* Sram result info bits assignment */ +#define MVPP2_PRS_RI_MAC_ME_MASK 0x1 +#define MVPP2_PRS_RI_DSA_MASK 0x2 +#define MVPP2_PRS_RI_VLAN_MASK (BIT(2) | BIT(3)) +#define MVPP2_PRS_RI_VLAN_NONE 0x0 +#define MVPP2_PRS_RI_VLAN_SINGLE BIT(2) +#define MVPP2_PRS_RI_VLAN_DOUBLE BIT(3) +#define MVPP2_PRS_RI_VLAN_TRIPLE (BIT(2) | BIT(3)) +#define MVPP2_PRS_RI_CPU_CODE_MASK 0x70 +#define MVPP2_PRS_RI_CPU_CODE_RX_SPEC BIT(4) +#define MVPP2_PRS_RI_L2_CAST_MASK (BIT(9) | BIT(10)) +#define MVPP2_PRS_RI_L2_UCAST 0x0 +#define MVPP2_PRS_RI_L2_MCAST BIT(9) +#define MVPP2_PRS_RI_L2_BCAST BIT(10) +#define MVPP2_PRS_RI_PPPOE_MASK 0x800 +#define MVPP2_PRS_RI_L3_PROTO_MASK (BIT(12) | BIT(13) | BIT(14)) +#define MVPP2_PRS_RI_L3_UN 0x0 +#define MVPP2_PRS_RI_L3_IP4 BIT(12) +#define MVPP2_PRS_RI_L3_IP4_OPT BIT(13) +#define MVPP2_PRS_RI_L3_IP4_OTHER (BIT(12) | BIT(13)) +#define MVPP2_PRS_RI_L3_IP6 BIT(14) +#define MVPP2_PRS_RI_L3_IP6_EXT (BIT(12) | BIT(14)) +#define MVPP2_PRS_RI_L3_ARP (BIT(13) | BIT(14)) +#define MVPP2_PRS_RI_L3_ADDR_MASK (BIT(15) | BIT(16)) +#define MVPP2_PRS_RI_L3_UCAST 0x0 +#define MVPP2_PRS_RI_L3_MCAST BIT(15) +#define MVPP2_PRS_RI_L3_BCAST (BIT(15) | BIT(16)) +#define MVPP2_PRS_RI_IP_FRAG_MASK 0x20000 +#define MVPP2_PRS_RI_IP_FRAG_TRUE BIT(17) +#define MVPP2_PRS_RI_UDF3_MASK 0x300000 +#define MVPP2_PRS_RI_UDF3_RX_SPECIAL BIT(21) +#define MVPP2_PRS_RI_L4_PROTO_MASK 0x1c00000 +#define MVPP2_PRS_RI_L4_TCP BIT(22) +#define MVPP2_PRS_RI_L4_UDP BIT(23) +#define MVPP2_PRS_RI_L4_OTHER (BIT(22) | BIT(23)) +#define MVPP2_PRS_RI_UDF7_MASK 0x60000000 +#define MVPP2_PRS_RI_UDF7_IP6_LITE BIT(29) +#define MVPP2_PRS_RI_DROP_MASK 0x80000000 + +#define MVPP2_PRS_IP_MASK (MVPP2_PRS_RI_L3_PROTO_MASK | \ + MVPP2_PRS_RI_IP_FRAG_MASK | \ + MVPP2_PRS_RI_L4_PROTO_MASK) + +/* Sram additional info bits assignment */ +#define MVPP2_PRS_IPV4_DIP_AI_BIT BIT(0) +#define MVPP2_PRS_IPV6_NO_EXT_AI_BIT BIT(0) +#define MVPP2_PRS_IPV6_EXT_AI_BIT BIT(1) +#define MVPP2_PRS_IPV6_EXT_AH_AI_BIT BIT(2) +#define MVPP2_PRS_IPV6_EXT_AH_LEN_AI_BIT BIT(3) +#define MVPP2_PRS_IPV6_EXT_AH_L4_AI_BIT BIT(4) +#define MVPP2_PRS_SINGLE_VLAN_AI 0 +#define MVPP2_PRS_DBL_VLAN_AI_BIT BIT(7) +#define MVPP2_PRS_EDSA_VID_AI_BIT BIT(0) + +/* DSA/EDSA type */ +#define MVPP2_PRS_TAGGED true +#define MVPP2_PRS_UNTAGGED false +#define MVPP2_PRS_EDSA true +#define MVPP2_PRS_DSA false + +/* MAC entries, shadow udf */ +enum mvpp2_prs_udf { + MVPP2_PRS_UDF_MAC_DEF, + MVPP2_PRS_UDF_MAC_RANGE, + MVPP2_PRS_UDF_L2_DEF, + MVPP2_PRS_UDF_L2_DEF_COPY, + MVPP2_PRS_UDF_L2_USER, +}; + +/* Lookup ID */ +enum mvpp2_prs_lookup { + MVPP2_PRS_LU_MH, + MVPP2_PRS_LU_MAC, + MVPP2_PRS_LU_DSA, + MVPP2_PRS_LU_VLAN, + MVPP2_PRS_LU_VID, + MVPP2_PRS_LU_L2, + MVPP2_PRS_LU_PPPOE, + MVPP2_PRS_LU_IP4, + MVPP2_PRS_LU_IP6, + MVPP2_PRS_LU_FLOWS, + MVPP2_PRS_LU_LAST, +}; + +struct mvpp2_prs_entry { + u32 index; + u32 tcam[MVPP2_PRS_TCAM_WORDS]; + u32 sram[MVPP2_PRS_SRAM_WORDS]; +}; + +struct mvpp2_prs_result_info { + u32 ri; + u32 ri_mask; +}; + +struct mvpp2_prs_shadow { + bool valid; + bool finish; + + /* Lookup ID */ + int lu; + + /* User defined offset */ + int udf; + + /* Result info */ + u32 ri; + u32 ri_mask; +}; + +int mvpp2_prs_default_init(struct platform_device *pdev, struct mvpp2 *priv); + +int mvpp2_prs_init_from_hw(struct mvpp2 *priv, struct mvpp2_prs_entry *pe, + int tid); + +unsigned int mvpp2_prs_tcam_port_map_get(struct mvpp2_prs_entry *pe); + +void mvpp2_prs_tcam_data_byte_get(struct mvpp2_prs_entry *pe, + unsigned int offs, unsigned char *byte, + unsigned char *enable); + +int mvpp2_prs_mac_da_accept(struct mvpp2_port *port, const u8 *da, bool add); + +int mvpp2_prs_tag_mode_set(struct mvpp2 *priv, int port, int type); + +int mvpp2_prs_add_flow(struct mvpp2 *priv, int flow, u32 ri, u32 ri_mask); + +int mvpp2_prs_def_flow(struct mvpp2_port *port); + +void mvpp2_prs_vid_enable_filtering(struct mvpp2_port *port); + +void mvpp2_prs_vid_disable_filtering(struct mvpp2_port *port); + +int mvpp2_prs_vid_entry_add(struct mvpp2_port *port, u16 vid); + +void mvpp2_prs_vid_entry_remove(struct mvpp2_port *port, u16 vid); + +void mvpp2_prs_vid_remove_all(struct mvpp2_port *port); + +void mvpp2_prs_mac_promisc_set(struct mvpp2 *priv, int port, + enum mvpp2_prs_l2_cast l2_cast, bool add); + +void mvpp2_prs_mac_del_all(struct mvpp2_port *port); + +int mvpp2_prs_update_mac_da(struct net_device *dev, const u8 *da); + +int mvpp2_prs_hits(struct mvpp2 *priv, int index); + +#endif diff --git a/drivers/net/ethernet/marvell/mvpp2/mvpp2_tai.c b/drivers/net/ethernet/marvell/mvpp2/mvpp2_tai.c new file mode 100644 index 000000000..95862aff4 --- /dev/null +++ b/drivers/net/ethernet/marvell/mvpp2/mvpp2_tai.c @@ -0,0 +1,457 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Marvell PP2.2 TAI support + * + * Note: + * Do NOT use the event capture support. + * Do Not even set the MPP muxes to allow PTP_EVENT_REQ to be used. + * It will disrupt the operation of this driver, and there is nothing + * that this driver can do to prevent that. Even using PTP_EVENT_REQ + * as an output will be seen as a trigger input, which can't be masked. + * When ever a trigger input is seen, the action in the TCFCR0_TCF + * field will be performed - whether it is a set, increment, decrement + * read, or frequency update. + * + * Other notes (useful, not specified in the documentation): + * - PTP_PULSE_OUT (PTP_EVENT_REQ MPP) + * It looks like the hardware can't generate a pulse at nsec=0. (The + * output doesn't trigger if the nsec field is zero.) + * Note: when configured as an output via the register at 0xfX441120, + * the input is still very much alive, and will trigger the current TCF + * function. + * - PTP_CLK_OUT (PTP_TRIG_GEN MPP) + * This generates a "PPS" signal determined by the CCC registers. It + * seems this is not aligned to the TOD counter in any way (it may be + * initially, but if you specify a non-round second interval, it won't, + * and you can't easily get it back.) + * - PTP_PCLK_OUT + * This generates a 50% duty cycle clock based on the TOD counter, and + * seems it can be set to any period of 1ns resolution. It is probably + * limited by the TOD step size. Its period is defined by the PCLK_CCC + * registers. Again, its alignment to the second is questionable. + * + * Consequently, we support none of these. + */ +#include <linux/io.h> +#include <linux/ptp_clock_kernel.h> +#include <linux/slab.h> + +#include "mvpp2.h" + +#define CR0_SW_NRESET BIT(0) + +#define TCFCR0_PHASE_UPDATE_ENABLE BIT(8) +#define TCFCR0_TCF_MASK (7 << 2) +#define TCFCR0_TCF_UPDATE (0 << 2) +#define TCFCR0_TCF_FREQUPDATE (1 << 2) +#define TCFCR0_TCF_INCREMENT (2 << 2) +#define TCFCR0_TCF_DECREMENT (3 << 2) +#define TCFCR0_TCF_CAPTURE (4 << 2) +#define TCFCR0_TCF_NOP (7 << 2) +#define TCFCR0_TCF_TRIGGER BIT(0) + +#define TCSR_CAPTURE_1_VALID BIT(1) +#define TCSR_CAPTURE_0_VALID BIT(0) + +struct mvpp2_tai { + struct ptp_clock_info caps; + struct ptp_clock *ptp_clock; + void __iomem *base; + spinlock_t lock; + u64 period; // nanosecond period in 32.32 fixed point + /* This timestamp is updated every two seconds */ + struct timespec64 stamp; +}; + +static void mvpp2_tai_modify(void __iomem *reg, u32 mask, u32 set) +{ + u32 val; + + val = readl_relaxed(reg) & ~mask; + val |= set & mask; + writel(val, reg); +} + +static void mvpp2_tai_write(u32 val, void __iomem *reg) +{ + writel_relaxed(val & 0xffff, reg); +} + +static u32 mvpp2_tai_read(void __iomem *reg) +{ + return readl_relaxed(reg) & 0xffff; +} + +static struct mvpp2_tai *ptp_to_tai(struct ptp_clock_info *ptp) +{ + return container_of(ptp, struct mvpp2_tai, caps); +} + +static void mvpp22_tai_read_ts(struct timespec64 *ts, void __iomem *base) +{ + ts->tv_sec = (u64)mvpp2_tai_read(base + 0) << 32 | + mvpp2_tai_read(base + 4) << 16 | + mvpp2_tai_read(base + 8); + + ts->tv_nsec = mvpp2_tai_read(base + 12) << 16 | + mvpp2_tai_read(base + 16); + + /* Read and discard fractional part */ + readl_relaxed(base + 20); + readl_relaxed(base + 24); +} + +static void mvpp2_tai_write_tlv(const struct timespec64 *ts, u32 frac, + void __iomem *base) +{ + mvpp2_tai_write(ts->tv_sec >> 32, base + MVPP22_TAI_TLV_SEC_HIGH); + mvpp2_tai_write(ts->tv_sec >> 16, base + MVPP22_TAI_TLV_SEC_MED); + mvpp2_tai_write(ts->tv_sec, base + MVPP22_TAI_TLV_SEC_LOW); + mvpp2_tai_write(ts->tv_nsec >> 16, base + MVPP22_TAI_TLV_NANO_HIGH); + mvpp2_tai_write(ts->tv_nsec, base + MVPP22_TAI_TLV_NANO_LOW); + mvpp2_tai_write(frac >> 16, base + MVPP22_TAI_TLV_FRAC_HIGH); + mvpp2_tai_write(frac, base + MVPP22_TAI_TLV_FRAC_LOW); +} + +static void mvpp2_tai_op(u32 op, void __iomem *base) +{ + /* Trigger the operation. Note that an external unmaskable + * event on PTP_EVENT_REQ will also trigger this action. + */ + mvpp2_tai_modify(base + MVPP22_TAI_TCFCR0, + TCFCR0_TCF_MASK | TCFCR0_TCF_TRIGGER, + op | TCFCR0_TCF_TRIGGER); + mvpp2_tai_modify(base + MVPP22_TAI_TCFCR0, TCFCR0_TCF_MASK, + TCFCR0_TCF_NOP); +} + +/* The adjustment has a range of +0.5ns to -0.5ns in 2^32 steps, so has units + * of 2^-32 ns. + * + * units(s) = 1 / (2^32 * 10^9) + * fractional = abs_scaled_ppm / (2^16 * 10^6) + * + * What we want to achieve: + * freq_adjusted = freq_nominal * (1 + fractional) + * freq_delta = freq_adjusted - freq_nominal => positive = faster + * freq_delta = freq_nominal * (1 + fractional) - freq_nominal + * So: freq_delta = freq_nominal * fractional + * + * However, we are dealing with periods, so: + * period_adjusted = period_nominal / (1 + fractional) + * period_delta = period_nominal - period_adjusted => positive = faster + * period_delta = period_nominal * fractional / (1 + fractional) + * + * Hence: + * period_delta = period_nominal * abs_scaled_ppm / + * (2^16 * 10^6 + abs_scaled_ppm) + * + * To avoid overflow, we reduce both sides of the divide operation by a factor + * of 16. + */ +static u64 mvpp22_calc_frac_ppm(struct mvpp2_tai *tai, long abs_scaled_ppm) +{ + u64 val = tai->period * abs_scaled_ppm >> 4; + + return div_u64(val, (1000000 << 12) + (abs_scaled_ppm >> 4)); +} + +static s32 mvpp22_calc_max_adj(struct mvpp2_tai *tai) +{ + return 1000000; +} + +static int mvpp22_tai_adjfine(struct ptp_clock_info *ptp, long scaled_ppm) +{ + struct mvpp2_tai *tai = ptp_to_tai(ptp); + unsigned long flags; + void __iomem *base; + bool neg_adj; + s32 frac; + u64 val; + + neg_adj = scaled_ppm < 0; + if (neg_adj) + scaled_ppm = -scaled_ppm; + + val = mvpp22_calc_frac_ppm(tai, scaled_ppm); + + /* Convert to a signed 32-bit adjustment */ + if (neg_adj) { + /* -S32_MIN warns, -val < S32_MIN fails, so go for the easy + * solution. + */ + if (val > 0x80000000) + return -ERANGE; + + frac = -val; + } else { + if (val > S32_MAX) + return -ERANGE; + + frac = val; + } + + base = tai->base; + spin_lock_irqsave(&tai->lock, flags); + mvpp2_tai_write(frac >> 16, base + MVPP22_TAI_TLV_FRAC_HIGH); + mvpp2_tai_write(frac, base + MVPP22_TAI_TLV_FRAC_LOW); + mvpp2_tai_op(TCFCR0_TCF_FREQUPDATE, base); + spin_unlock_irqrestore(&tai->lock, flags); + + return 0; +} + +static int mvpp22_tai_adjtime(struct ptp_clock_info *ptp, s64 delta) +{ + struct mvpp2_tai *tai = ptp_to_tai(ptp); + struct timespec64 ts; + unsigned long flags; + void __iomem *base; + u32 tcf; + + /* We can't deal with S64_MIN */ + if (delta == S64_MIN) + return -ERANGE; + + if (delta < 0) { + delta = -delta; + tcf = TCFCR0_TCF_DECREMENT; + } else { + tcf = TCFCR0_TCF_INCREMENT; + } + + ts = ns_to_timespec64(delta); + + base = tai->base; + spin_lock_irqsave(&tai->lock, flags); + mvpp2_tai_write_tlv(&ts, 0, base); + mvpp2_tai_op(tcf, base); + spin_unlock_irqrestore(&tai->lock, flags); + + return 0; +} + +static int mvpp22_tai_gettimex64(struct ptp_clock_info *ptp, + struct timespec64 *ts, + struct ptp_system_timestamp *sts) +{ + struct mvpp2_tai *tai = ptp_to_tai(ptp); + unsigned long flags; + void __iomem *base; + u32 tcsr; + int ret; + + base = tai->base; + spin_lock_irqsave(&tai->lock, flags); + /* XXX: the only way to read the PTP time is for the CPU to trigger + * an event. However, there is no way to distinguish between the CPU + * triggered event, and an external event on PTP_EVENT_REQ. So this + * is incompatible with external use of PTP_EVENT_REQ. + */ + ptp_read_system_prets(sts); + mvpp2_tai_modify(base + MVPP22_TAI_TCFCR0, + TCFCR0_TCF_MASK | TCFCR0_TCF_TRIGGER, + TCFCR0_TCF_CAPTURE | TCFCR0_TCF_TRIGGER); + ptp_read_system_postts(sts); + mvpp2_tai_modify(base + MVPP22_TAI_TCFCR0, TCFCR0_TCF_MASK, + TCFCR0_TCF_NOP); + + tcsr = readl(base + MVPP22_TAI_TCSR); + if (tcsr & TCSR_CAPTURE_1_VALID) { + mvpp22_tai_read_ts(ts, base + MVPP22_TAI_TCV1_SEC_HIGH); + ret = 0; + } else if (tcsr & TCSR_CAPTURE_0_VALID) { + mvpp22_tai_read_ts(ts, base + MVPP22_TAI_TCV0_SEC_HIGH); + ret = 0; + } else { + /* We don't seem to have a reading... */ + ret = -EBUSY; + } + spin_unlock_irqrestore(&tai->lock, flags); + + return ret; +} + +static int mvpp22_tai_settime64(struct ptp_clock_info *ptp, + const struct timespec64 *ts) +{ + struct mvpp2_tai *tai = ptp_to_tai(ptp); + unsigned long flags; + void __iomem *base; + + base = tai->base; + spin_lock_irqsave(&tai->lock, flags); + mvpp2_tai_write_tlv(ts, 0, base); + + /* Trigger an update to load the value from the TLV registers + * into the TOD counter. Note that an external unmaskable event on + * PTP_EVENT_REQ will also trigger this action. + */ + mvpp2_tai_modify(base + MVPP22_TAI_TCFCR0, + TCFCR0_PHASE_UPDATE_ENABLE | + TCFCR0_TCF_MASK | TCFCR0_TCF_TRIGGER, + TCFCR0_TCF_UPDATE | TCFCR0_TCF_TRIGGER); + mvpp2_tai_modify(base + MVPP22_TAI_TCFCR0, TCFCR0_TCF_MASK, + TCFCR0_TCF_NOP); + spin_unlock_irqrestore(&tai->lock, flags); + + return 0; +} + +static long mvpp22_tai_aux_work(struct ptp_clock_info *ptp) +{ + struct mvpp2_tai *tai = ptp_to_tai(ptp); + + mvpp22_tai_gettimex64(ptp, &tai->stamp, NULL); + + return msecs_to_jiffies(2000); +} + +static void mvpp22_tai_set_step(struct mvpp2_tai *tai) +{ + void __iomem *base = tai->base; + u32 nano, frac; + + nano = upper_32_bits(tai->period); + frac = lower_32_bits(tai->period); + + /* As the fractional nanosecond is a signed offset, if the MSB (sign) + * bit is set, we have to increment the whole nanoseconds. + */ + if (frac >= 0x80000000) + nano += 1; + + mvpp2_tai_write(nano, base + MVPP22_TAI_TOD_STEP_NANO_CR); + mvpp2_tai_write(frac >> 16, base + MVPP22_TAI_TOD_STEP_FRAC_HIGH); + mvpp2_tai_write(frac, base + MVPP22_TAI_TOD_STEP_FRAC_LOW); +} + +static void mvpp22_tai_init(struct mvpp2_tai *tai) +{ + void __iomem *base = tai->base; + + mvpp22_tai_set_step(tai); + + /* Release the TAI reset */ + mvpp2_tai_modify(base + MVPP22_TAI_CR0, CR0_SW_NRESET, CR0_SW_NRESET); +} + +int mvpp22_tai_ptp_clock_index(struct mvpp2_tai *tai) +{ + return ptp_clock_index(tai->ptp_clock); +} + +void mvpp22_tai_tstamp(struct mvpp2_tai *tai, u32 tstamp, + struct skb_shared_hwtstamps *hwtstamp) +{ + struct timespec64 ts; + int delta; + + /* The tstamp consists of 2 bits of seconds and 30 bits of nanoseconds. + * We use our stored timestamp (tai->stamp) to form a full timestamp, + * and we must read the seconds exactly once. + */ + ts.tv_sec = READ_ONCE(tai->stamp.tv_sec); + ts.tv_nsec = tstamp & 0x3fffffff; + + /* Calculate the delta in seconds between our stored timestamp and + * the value read from the queue. Allow timestamps one second in the + * past, otherwise consider them to be in the future. + */ + delta = ((tstamp >> 30) - (ts.tv_sec & 3)) & 3; + if (delta == 3) + delta -= 4; + ts.tv_sec += delta; + + memset(hwtstamp, 0, sizeof(*hwtstamp)); + hwtstamp->hwtstamp = timespec64_to_ktime(ts); +} + +void mvpp22_tai_start(struct mvpp2_tai *tai) +{ + long delay; + + delay = mvpp22_tai_aux_work(&tai->caps); + + ptp_schedule_worker(tai->ptp_clock, delay); +} + +void mvpp22_tai_stop(struct mvpp2_tai *tai) +{ + ptp_cancel_worker_sync(tai->ptp_clock); +} + +static void mvpp22_tai_remove(void *priv) +{ + struct mvpp2_tai *tai = priv; + + if (!IS_ERR(tai->ptp_clock)) + ptp_clock_unregister(tai->ptp_clock); +} + +int mvpp22_tai_probe(struct device *dev, struct mvpp2 *priv) +{ + struct mvpp2_tai *tai; + int ret; + + tai = devm_kzalloc(dev, sizeof(*tai), GFP_KERNEL); + if (!tai) + return -ENOMEM; + + spin_lock_init(&tai->lock); + + tai->base = priv->iface_base; + + /* The step size consists of three registers - a 16-bit nanosecond step + * size, and a 32-bit fractional nanosecond step size split over two + * registers. The fractional nanosecond step size has units of 2^-32ns. + * + * To calculate this, we calculate: + * (10^9 + freq / 2) / (freq * 2^-32) + * which gives us the nanosecond step to the nearest integer in 16.32 + * fixed point format, and the fractional part of the step size with + * the MSB inverted. With rounding of the fractional nanosecond, and + * simplification, this becomes: + * (10^9 << 32 + freq << 31 + (freq + 1) >> 1) / freq + * + * So: + * div = (10^9 << 32 + freq << 31 + (freq + 1) >> 1) / freq + * nano = upper_32_bits(div); + * frac = lower_32_bits(div) ^ 0x80000000; + * Will give the values for the registers. + * + * This is all seems perfect, but alas it is not when considering the + * whole story. The system is clocked from 25MHz, which is multiplied + * by a PLL to 1GHz, and then divided by three, giving 333333333Hz + * (recurring). This gives exactly 3ns, but using 333333333Hz with + * the above gives an error of 13*2^-32ns. + * + * Consequently, we use the period rather than calculating from the + * frequency. + */ + tai->period = 3ULL << 32; + + mvpp22_tai_init(tai); + + tai->caps.owner = THIS_MODULE; + strscpy(tai->caps.name, "Marvell PP2.2", sizeof(tai->caps.name)); + tai->caps.max_adj = mvpp22_calc_max_adj(tai); + tai->caps.adjfine = mvpp22_tai_adjfine; + tai->caps.adjtime = mvpp22_tai_adjtime; + tai->caps.gettimex64 = mvpp22_tai_gettimex64; + tai->caps.settime64 = mvpp22_tai_settime64; + tai->caps.do_aux_work = mvpp22_tai_aux_work; + + ret = devm_add_action(dev, mvpp22_tai_remove, tai); + if (ret) + return ret; + + tai->ptp_clock = ptp_clock_register(&tai->caps, dev); + if (IS_ERR(tai->ptp_clock)) + return PTR_ERR(tai->ptp_clock); + + priv->tai = tai; + + return 0; +} diff --git a/drivers/net/ethernet/marvell/octeon_ep/Kconfig b/drivers/net/ethernet/marvell/octeon_ep/Kconfig new file mode 100644 index 000000000..0d7db8153 --- /dev/null +++ b/drivers/net/ethernet/marvell/octeon_ep/Kconfig @@ -0,0 +1,20 @@ +# SPDX-License-Identifier: GPL-2.0-only +# +# Marvell's Octeon PCI Endpoint NIC Driver Configuration +# + +config OCTEON_EP + tristate "Marvell Octeon PCI Endpoint NIC Driver" + depends on 64BIT + depends on PCI + depends on PTP_1588_CLOCK_OPTIONAL + help + This driver supports networking functionality of Marvell's + Octeon PCI Endpoint NIC. + + To know the list of devices supported by this driver, refer + documentation in + <file:Documentation/networking/device_drivers/ethernet/marvell/octeon_ep.rst>. + + To compile this drivers as a module, choose M here. Name of the + module is octeon_ep. diff --git a/drivers/net/ethernet/marvell/octeon_ep/Makefile b/drivers/net/ethernet/marvell/octeon_ep/Makefile new file mode 100644 index 000000000..2026c8118 --- /dev/null +++ b/drivers/net/ethernet/marvell/octeon_ep/Makefile @@ -0,0 +1,9 @@ +# SPDX-License-Identifier: GPL-2.0 +# +# Network driver for Marvell's Octeon PCI Endpoint NIC +# + +obj-$(CONFIG_OCTEON_EP) += octeon_ep.o + +octeon_ep-y := octep_main.o octep_cn9k_pf.o octep_tx.o octep_rx.o \ + octep_ethtool.o octep_ctrl_mbox.o octep_ctrl_net.o diff --git a/drivers/net/ethernet/marvell/octeon_ep/octep_cn9k_pf.c b/drivers/net/ethernet/marvell/octeon_ep/octep_cn9k_pf.c new file mode 100644 index 000000000..6ad88d0fe --- /dev/null +++ b/drivers/net/ethernet/marvell/octeon_ep/octep_cn9k_pf.c @@ -0,0 +1,737 @@ +// SPDX-License-Identifier: GPL-2.0 +/* Marvell Octeon EP (EndPoint) Ethernet Driver + * + * Copyright (C) 2020 Marvell. + * + */ + +#include <linux/pci.h> +#include <linux/netdevice.h> +#include <linux/etherdevice.h> + +#include "octep_config.h" +#include "octep_main.h" +#include "octep_regs_cn9k_pf.h" + +/* Names of Hardware non-queue generic interrupts */ +static char *cn93_non_ioq_msix_names[] = { + "epf_ire_rint", + "epf_ore_rint", + "epf_vfire_rint0", + "epf_vfire_rint1", + "epf_vfore_rint0", + "epf_vfore_rint1", + "epf_mbox_rint0", + "epf_mbox_rint1", + "epf_oei_rint", + "epf_dma_rint", + "epf_dma_vf_rint0", + "epf_dma_vf_rint1", + "epf_pp_vf_rint0", + "epf_pp_vf_rint1", + "epf_misc_rint", + "epf_rsvd", +}; + +/* Dump useful hardware CSRs for debug purpose */ +static void cn93_dump_regs(struct octep_device *oct, int qno) +{ + struct device *dev = &oct->pdev->dev; + + dev_info(dev, "IQ-%d register dump\n", qno); + dev_info(dev, "R[%d]_IN_INSTR_DBELL[0x%llx]: 0x%016llx\n", + qno, CN93_SDP_R_IN_INSTR_DBELL(qno), + octep_read_csr64(oct, CN93_SDP_R_IN_INSTR_DBELL(qno))); + dev_info(dev, "R[%d]_IN_CONTROL[0x%llx]: 0x%016llx\n", + qno, CN93_SDP_R_IN_CONTROL(qno), + octep_read_csr64(oct, CN93_SDP_R_IN_CONTROL(qno))); + dev_info(dev, "R[%d]_IN_ENABLE[0x%llx]: 0x%016llx\n", + qno, CN93_SDP_R_IN_ENABLE(qno), + octep_read_csr64(oct, CN93_SDP_R_IN_ENABLE(qno))); + dev_info(dev, "R[%d]_IN_INSTR_BADDR[0x%llx]: 0x%016llx\n", + qno, CN93_SDP_R_IN_INSTR_BADDR(qno), + octep_read_csr64(oct, CN93_SDP_R_IN_INSTR_BADDR(qno))); + dev_info(dev, "R[%d]_IN_INSTR_RSIZE[0x%llx]: 0x%016llx\n", + qno, CN93_SDP_R_IN_INSTR_RSIZE(qno), + octep_read_csr64(oct, CN93_SDP_R_IN_INSTR_RSIZE(qno))); + dev_info(dev, "R[%d]_IN_CNTS[0x%llx]: 0x%016llx\n", + qno, CN93_SDP_R_IN_CNTS(qno), + octep_read_csr64(oct, CN93_SDP_R_IN_CNTS(qno))); + dev_info(dev, "R[%d]_IN_INT_LEVELS[0x%llx]: 0x%016llx\n", + qno, CN93_SDP_R_IN_INT_LEVELS(qno), + octep_read_csr64(oct, CN93_SDP_R_IN_INT_LEVELS(qno))); + dev_info(dev, "R[%d]_IN_PKT_CNT[0x%llx]: 0x%016llx\n", + qno, CN93_SDP_R_IN_PKT_CNT(qno), + octep_read_csr64(oct, CN93_SDP_R_IN_PKT_CNT(qno))); + dev_info(dev, "R[%d]_IN_BYTE_CNT[0x%llx]: 0x%016llx\n", + qno, CN93_SDP_R_IN_BYTE_CNT(qno), + octep_read_csr64(oct, CN93_SDP_R_IN_BYTE_CNT(qno))); + + dev_info(dev, "OQ-%d register dump\n", qno); + dev_info(dev, "R[%d]_OUT_SLIST_DBELL[0x%llx]: 0x%016llx\n", + qno, CN93_SDP_R_OUT_SLIST_DBELL(qno), + octep_read_csr64(oct, CN93_SDP_R_OUT_SLIST_DBELL(qno))); + dev_info(dev, "R[%d]_OUT_CONTROL[0x%llx]: 0x%016llx\n", + qno, CN93_SDP_R_OUT_CONTROL(qno), + octep_read_csr64(oct, CN93_SDP_R_OUT_CONTROL(qno))); + dev_info(dev, "R[%d]_OUT_ENABLE[0x%llx]: 0x%016llx\n", + qno, CN93_SDP_R_OUT_ENABLE(qno), + octep_read_csr64(oct, CN93_SDP_R_OUT_ENABLE(qno))); + dev_info(dev, "R[%d]_OUT_SLIST_BADDR[0x%llx]: 0x%016llx\n", + qno, CN93_SDP_R_OUT_SLIST_BADDR(qno), + octep_read_csr64(oct, CN93_SDP_R_OUT_SLIST_BADDR(qno))); + dev_info(dev, "R[%d]_OUT_SLIST_RSIZE[0x%llx]: 0x%016llx\n", + qno, CN93_SDP_R_OUT_SLIST_RSIZE(qno), + octep_read_csr64(oct, CN93_SDP_R_OUT_SLIST_RSIZE(qno))); + dev_info(dev, "R[%d]_OUT_CNTS[0x%llx]: 0x%016llx\n", + qno, CN93_SDP_R_OUT_CNTS(qno), + octep_read_csr64(oct, CN93_SDP_R_OUT_CNTS(qno))); + dev_info(dev, "R[%d]_OUT_INT_LEVELS[0x%llx]: 0x%016llx\n", + qno, CN93_SDP_R_OUT_INT_LEVELS(qno), + octep_read_csr64(oct, CN93_SDP_R_OUT_INT_LEVELS(qno))); + dev_info(dev, "R[%d]_OUT_PKT_CNT[0x%llx]: 0x%016llx\n", + qno, CN93_SDP_R_OUT_PKT_CNT(qno), + octep_read_csr64(oct, CN93_SDP_R_OUT_PKT_CNT(qno))); + dev_info(dev, "R[%d]_OUT_BYTE_CNT[0x%llx]: 0x%016llx\n", + qno, CN93_SDP_R_OUT_BYTE_CNT(qno), + octep_read_csr64(oct, CN93_SDP_R_OUT_BYTE_CNT(qno))); + dev_info(dev, "R[%d]_ERR_TYPE[0x%llx]: 0x%016llx\n", + qno, CN93_SDP_R_ERR_TYPE(qno), + octep_read_csr64(oct, CN93_SDP_R_ERR_TYPE(qno))); +} + +/* Reset Hardware Tx queue */ +static int cn93_reset_iq(struct octep_device *oct, int q_no) +{ + struct octep_config *conf = oct->conf; + u64 val = 0ULL; + + dev_dbg(&oct->pdev->dev, "Reset PF IQ-%d\n", q_no); + + /* Get absolute queue number */ + q_no += conf->pf_ring_cfg.srn; + + /* Disable the Tx/Instruction Ring */ + octep_write_csr64(oct, CN93_SDP_R_IN_ENABLE(q_no), val); + + /* clear the Instruction Ring packet/byte counts and doorbell CSRs */ + octep_write_csr64(oct, CN93_SDP_R_IN_CNTS(q_no), val); + octep_write_csr64(oct, CN93_SDP_R_IN_INT_LEVELS(q_no), val); + octep_write_csr64(oct, CN93_SDP_R_IN_PKT_CNT(q_no), val); + octep_write_csr64(oct, CN93_SDP_R_IN_BYTE_CNT(q_no), val); + octep_write_csr64(oct, CN93_SDP_R_IN_INSTR_BADDR(q_no), val); + octep_write_csr64(oct, CN93_SDP_R_IN_INSTR_RSIZE(q_no), val); + + val = 0xFFFFFFFF; + octep_write_csr64(oct, CN93_SDP_R_IN_INSTR_DBELL(q_no), val); + + return 0; +} + +/* Reset Hardware Rx queue */ +static void cn93_reset_oq(struct octep_device *oct, int q_no) +{ + u64 val = 0ULL; + + q_no += CFG_GET_PORTS_PF_SRN(oct->conf); + + /* Disable Output (Rx) Ring */ + octep_write_csr64(oct, CN93_SDP_R_OUT_ENABLE(q_no), val); + + /* Clear count CSRs */ + val = octep_read_csr(oct, CN93_SDP_R_OUT_CNTS(q_no)); + octep_write_csr(oct, CN93_SDP_R_OUT_CNTS(q_no), val); + + octep_write_csr64(oct, CN93_SDP_R_OUT_PKT_CNT(q_no), 0xFFFFFFFFFULL); + octep_write_csr64(oct, CN93_SDP_R_OUT_SLIST_DBELL(q_no), 0xFFFFFFFF); +} + +/* Reset all hardware Tx/Rx queues */ +static void octep_reset_io_queues_cn93_pf(struct octep_device *oct) +{ + struct pci_dev *pdev = oct->pdev; + int q; + + dev_dbg(&pdev->dev, "Reset OCTEP_CN93 PF IO Queues\n"); + + for (q = 0; q < CFG_GET_PORTS_ACTIVE_IO_RINGS(oct->conf); q++) { + cn93_reset_iq(oct, q); + cn93_reset_oq(oct, q); + } +} + +/* Initialize windowed addresses to access some hardware registers */ +static void octep_setup_pci_window_regs_cn93_pf(struct octep_device *oct) +{ + u8 __iomem *bar0_pciaddr = oct->mmio[0].hw_addr; + + oct->pci_win_regs.pci_win_wr_addr = (u8 __iomem *)(bar0_pciaddr + CN93_SDP_WIN_WR_ADDR64); + oct->pci_win_regs.pci_win_rd_addr = (u8 __iomem *)(bar0_pciaddr + CN93_SDP_WIN_RD_ADDR64); + oct->pci_win_regs.pci_win_wr_data = (u8 __iomem *)(bar0_pciaddr + CN93_SDP_WIN_WR_DATA64); + oct->pci_win_regs.pci_win_rd_data = (u8 __iomem *)(bar0_pciaddr + CN93_SDP_WIN_RD_DATA64); +} + +/* Configure Hardware mapping: inform hardware which rings belong to PF. */ +static void octep_configure_ring_mapping_cn93_pf(struct octep_device *oct) +{ + struct octep_config *conf = oct->conf; + struct pci_dev *pdev = oct->pdev; + u64 pf_srn = CFG_GET_PORTS_PF_SRN(oct->conf); + int q; + + for (q = 0; q < CFG_GET_PORTS_ACTIVE_IO_RINGS(conf); q++) { + u64 regval = 0; + + if (oct->pcie_port) + regval = 8 << CN93_SDP_FUNC_SEL_EPF_BIT_POS; + + octep_write_csr64(oct, CN93_SDP_EPVF_RING(pf_srn + q), regval); + + regval = octep_read_csr64(oct, CN93_SDP_EPVF_RING(pf_srn + q)); + dev_dbg(&pdev->dev, "Write SDP_EPVF_RING[0x%llx] = 0x%llx\n", + CN93_SDP_EPVF_RING(pf_srn + q), regval); + } +} + +/* Initialize configuration limits and initial active config 93xx PF. */ +static void octep_init_config_cn93_pf(struct octep_device *oct) +{ + struct octep_config *conf = oct->conf; + struct pci_dev *pdev = oct->pdev; + u64 val; + + /* Read ring configuration: + * PF ring count, number of VFs and rings per VF supported + */ + val = octep_read_csr64(oct, CN93_SDP_EPF_RINFO); + conf->sriov_cfg.max_rings_per_vf = CN93_SDP_EPF_RINFO_RPVF(val); + conf->sriov_cfg.active_rings_per_vf = conf->sriov_cfg.max_rings_per_vf; + conf->sriov_cfg.max_vfs = CN93_SDP_EPF_RINFO_NVFS(val); + conf->sriov_cfg.active_vfs = conf->sriov_cfg.max_vfs; + conf->sriov_cfg.vf_srn = CN93_SDP_EPF_RINFO_SRN(val); + + val = octep_read_csr64(oct, CN93_SDP_MAC_PF_RING_CTL(oct->pcie_port)); + conf->pf_ring_cfg.srn = CN93_SDP_MAC_PF_RING_CTL_SRN(val); + conf->pf_ring_cfg.max_io_rings = CN93_SDP_MAC_PF_RING_CTL_RPPF(val); + conf->pf_ring_cfg.active_io_rings = conf->pf_ring_cfg.max_io_rings; + dev_info(&pdev->dev, "pf_srn=%u rpvf=%u nvfs=%u rppf=%u\n", + conf->pf_ring_cfg.srn, conf->sriov_cfg.active_rings_per_vf, + conf->sriov_cfg.active_vfs, conf->pf_ring_cfg.active_io_rings); + + conf->iq.num_descs = OCTEP_IQ_MAX_DESCRIPTORS; + conf->iq.instr_type = OCTEP_64BYTE_INSTR; + conf->iq.pkind = 0; + conf->iq.db_min = OCTEP_DB_MIN; + conf->iq.intr_threshold = OCTEP_IQ_INTR_THRESHOLD; + + conf->oq.num_descs = OCTEP_OQ_MAX_DESCRIPTORS; + conf->oq.buf_size = OCTEP_OQ_BUF_SIZE; + conf->oq.refill_threshold = OCTEP_OQ_REFILL_THRESHOLD; + conf->oq.oq_intr_pkt = OCTEP_OQ_INTR_PKT_THRESHOLD; + conf->oq.oq_intr_time = OCTEP_OQ_INTR_TIME_THRESHOLD; + + conf->msix_cfg.non_ioq_msix = CN93_NUM_NON_IOQ_INTR; + conf->msix_cfg.ioq_msix = conf->pf_ring_cfg.active_io_rings; + conf->msix_cfg.non_ioq_msix_names = cn93_non_ioq_msix_names; + + conf->ctrl_mbox_cfg.barmem_addr = (void __iomem *)oct->mmio[2].hw_addr + (0x400000ull * 7); +} + +/* Setup registers for a hardware Tx Queue */ +static void octep_setup_iq_regs_cn93_pf(struct octep_device *oct, int iq_no) +{ + struct octep_iq *iq = oct->iq[iq_no]; + u32 reset_instr_cnt; + u64 reg_val; + + iq_no += CFG_GET_PORTS_PF_SRN(oct->conf); + reg_val = octep_read_csr64(oct, CN93_SDP_R_IN_CONTROL(iq_no)); + + /* wait for IDLE to set to 1 */ + if (!(reg_val & CN93_R_IN_CTL_IDLE)) { + do { + reg_val = octep_read_csr64(oct, CN93_SDP_R_IN_CONTROL(iq_no)); + } while (!(reg_val & CN93_R_IN_CTL_IDLE)); + } + + reg_val |= CN93_R_IN_CTL_RDSIZE; + reg_val |= CN93_R_IN_CTL_IS_64B; + reg_val |= CN93_R_IN_CTL_ESR; + octep_write_csr64(oct, CN93_SDP_R_IN_CONTROL(iq_no), reg_val); + + /* Write the start of the input queue's ring and its size */ + octep_write_csr64(oct, CN93_SDP_R_IN_INSTR_BADDR(iq_no), + iq->desc_ring_dma); + octep_write_csr64(oct, CN93_SDP_R_IN_INSTR_RSIZE(iq_no), + iq->max_count); + + /* Remember the doorbell & instruction count register addr + * for this queue + */ + iq->doorbell_reg = oct->mmio[0].hw_addr + + CN93_SDP_R_IN_INSTR_DBELL(iq_no); + iq->inst_cnt_reg = oct->mmio[0].hw_addr + + CN93_SDP_R_IN_CNTS(iq_no); + iq->intr_lvl_reg = oct->mmio[0].hw_addr + + CN93_SDP_R_IN_INT_LEVELS(iq_no); + + /* Store the current instruction counter (used in flush_iq calculation) */ + reset_instr_cnt = readl(iq->inst_cnt_reg); + writel(reset_instr_cnt, iq->inst_cnt_reg); + + /* INTR_THRESHOLD is set to max(FFFFFFFF) to disable the INTR */ + reg_val = CFG_GET_IQ_INTR_THRESHOLD(oct->conf) & 0xffffffff; + octep_write_csr64(oct, CN93_SDP_R_IN_INT_LEVELS(iq_no), reg_val); +} + +/* Setup registers for a hardware Rx Queue */ +static void octep_setup_oq_regs_cn93_pf(struct octep_device *oct, int oq_no) +{ + u64 reg_val; + u64 oq_ctl = 0ULL; + u32 time_threshold = 0; + struct octep_oq *oq = oct->oq[oq_no]; + + oq_no += CFG_GET_PORTS_PF_SRN(oct->conf); + reg_val = octep_read_csr64(oct, CN93_SDP_R_OUT_CONTROL(oq_no)); + + /* wait for IDLE to set to 1 */ + if (!(reg_val & CN93_R_OUT_CTL_IDLE)) { + do { + reg_val = octep_read_csr64(oct, CN93_SDP_R_OUT_CONTROL(oq_no)); + } while (!(reg_val & CN93_R_OUT_CTL_IDLE)); + } + + reg_val &= ~(CN93_R_OUT_CTL_IMODE); + reg_val &= ~(CN93_R_OUT_CTL_ROR_P); + reg_val &= ~(CN93_R_OUT_CTL_NSR_P); + reg_val &= ~(CN93_R_OUT_CTL_ROR_I); + reg_val &= ~(CN93_R_OUT_CTL_NSR_I); + reg_val &= ~(CN93_R_OUT_CTL_ES_I); + reg_val &= ~(CN93_R_OUT_CTL_ROR_D); + reg_val &= ~(CN93_R_OUT_CTL_NSR_D); + reg_val &= ~(CN93_R_OUT_CTL_ES_D); + reg_val |= (CN93_R_OUT_CTL_ES_P); + + octep_write_csr64(oct, CN93_SDP_R_OUT_CONTROL(oq_no), reg_val); + octep_write_csr64(oct, CN93_SDP_R_OUT_SLIST_BADDR(oq_no), + oq->desc_ring_dma); + octep_write_csr64(oct, CN93_SDP_R_OUT_SLIST_RSIZE(oq_no), + oq->max_count); + + oq_ctl = octep_read_csr64(oct, CN93_SDP_R_OUT_CONTROL(oq_no)); + oq_ctl &= ~0x7fffffULL; //clear the ISIZE and BSIZE (22-0) + oq_ctl |= (oq->buffer_size & 0xffff); //populate the BSIZE (15-0) + octep_write_csr64(oct, CN93_SDP_R_OUT_CONTROL(oq_no), oq_ctl); + + /* Get the mapped address of the pkt_sent and pkts_credit regs */ + oq->pkts_sent_reg = oct->mmio[0].hw_addr + CN93_SDP_R_OUT_CNTS(oq_no); + oq->pkts_credit_reg = oct->mmio[0].hw_addr + + CN93_SDP_R_OUT_SLIST_DBELL(oq_no); + + time_threshold = CFG_GET_OQ_INTR_TIME(oct->conf); + reg_val = ((u64)time_threshold << 32) | + CFG_GET_OQ_INTR_PKT(oct->conf); + octep_write_csr64(oct, CN93_SDP_R_OUT_INT_LEVELS(oq_no), reg_val); +} + +/* Setup registers for a PF mailbox */ +static void octep_setup_mbox_regs_cn93_pf(struct octep_device *oct, int q_no) +{ + struct octep_mbox *mbox = oct->mbox[q_no]; + + mbox->q_no = q_no; + + /* PF mbox interrupt reg */ + mbox->mbox_int_reg = oct->mmio[0].hw_addr + CN93_SDP_EPF_MBOX_RINT(0); + + /* PF to VF DATA reg. PF writes into this reg */ + mbox->mbox_write_reg = oct->mmio[0].hw_addr + CN93_SDP_R_MBOX_PF_VF_DATA(q_no); + + /* VF to PF DATA reg. PF reads from this reg */ + mbox->mbox_read_reg = oct->mmio[0].hw_addr + CN93_SDP_R_MBOX_VF_PF_DATA(q_no); +} + +/* Mailbox Interrupt handler */ +static void cn93_handle_pf_mbox_intr(struct octep_device *oct) +{ + u64 mbox_int_val = 0ULL, val = 0ULL, qno = 0ULL; + + mbox_int_val = readq(oct->mbox[0]->mbox_int_reg); + for (qno = 0; qno < OCTEP_MAX_VF; qno++) { + val = readq(oct->mbox[qno]->mbox_read_reg); + dev_dbg(&oct->pdev->dev, + "PF MBOX READ: val:%llx from VF:%llx\n", val, qno); + } + + writeq(mbox_int_val, oct->mbox[0]->mbox_int_reg); +} + +/* Interrupts handler for all non-queue generic interrupts. */ +static irqreturn_t octep_non_ioq_intr_handler_cn93_pf(void *dev) +{ + struct octep_device *oct = (struct octep_device *)dev; + struct pci_dev *pdev = oct->pdev; + u64 reg_val = 0; + int i = 0; + + /* Check for IRERR INTR */ + reg_val = octep_read_csr64(oct, CN93_SDP_EPF_IRERR_RINT); + if (reg_val) { + dev_info(&pdev->dev, + "received IRERR_RINT intr: 0x%llx\n", reg_val); + octep_write_csr64(oct, CN93_SDP_EPF_IRERR_RINT, reg_val); + + for (i = 0; i < CFG_GET_PORTS_ACTIVE_IO_RINGS(oct->conf); i++) { + reg_val = octep_read_csr64(oct, + CN93_SDP_R_ERR_TYPE(i)); + if (reg_val) { + dev_info(&pdev->dev, + "Received err type on IQ-%d: 0x%llx\n", + i, reg_val); + octep_write_csr64(oct, CN93_SDP_R_ERR_TYPE(i), + reg_val); + } + } + goto irq_handled; + } + + /* Check for ORERR INTR */ + reg_val = octep_read_csr64(oct, CN93_SDP_EPF_ORERR_RINT); + if (reg_val) { + dev_info(&pdev->dev, + "Received ORERR_RINT intr: 0x%llx\n", reg_val); + octep_write_csr64(oct, CN93_SDP_EPF_ORERR_RINT, reg_val); + for (i = 0; i < CFG_GET_PORTS_ACTIVE_IO_RINGS(oct->conf); i++) { + reg_val = octep_read_csr64(oct, CN93_SDP_R_ERR_TYPE(i)); + if (reg_val) { + dev_info(&pdev->dev, + "Received err type on OQ-%d: 0x%llx\n", + i, reg_val); + octep_write_csr64(oct, CN93_SDP_R_ERR_TYPE(i), + reg_val); + } + } + + goto irq_handled; + } + + /* Check for VFIRE INTR */ + reg_val = octep_read_csr64(oct, CN93_SDP_EPF_VFIRE_RINT(0)); + if (reg_val) { + dev_info(&pdev->dev, + "Received VFIRE_RINT intr: 0x%llx\n", reg_val); + octep_write_csr64(oct, CN93_SDP_EPF_VFIRE_RINT(0), reg_val); + goto irq_handled; + } + + /* Check for VFORE INTR */ + reg_val = octep_read_csr64(oct, CN93_SDP_EPF_VFORE_RINT(0)); + if (reg_val) { + dev_info(&pdev->dev, + "Received VFORE_RINT intr: 0x%llx\n", reg_val); + octep_write_csr64(oct, CN93_SDP_EPF_VFORE_RINT(0), reg_val); + goto irq_handled; + } + + /* Check for MBOX INTR */ + reg_val = octep_read_csr64(oct, CN93_SDP_EPF_MBOX_RINT(0)); + if (reg_val) { + dev_info(&pdev->dev, + "Received MBOX_RINT intr: 0x%llx\n", reg_val); + cn93_handle_pf_mbox_intr(oct); + goto irq_handled; + } + + /* Check for OEI INTR */ + reg_val = octep_read_csr64(oct, CN93_SDP_EPF_OEI_RINT); + if (reg_val) { + dev_info(&pdev->dev, + "Received OEI_EINT intr: 0x%llx\n", reg_val); + octep_write_csr64(oct, CN93_SDP_EPF_OEI_RINT, reg_val); + queue_work(octep_wq, &oct->ctrl_mbox_task); + goto irq_handled; + } + + /* Check for DMA INTR */ + reg_val = octep_read_csr64(oct, CN93_SDP_EPF_DMA_RINT); + if (reg_val) { + octep_write_csr64(oct, CN93_SDP_EPF_DMA_RINT, reg_val); + goto irq_handled; + } + + /* Check for DMA VF INTR */ + reg_val = octep_read_csr64(oct, CN93_SDP_EPF_DMA_VF_RINT(0)); + if (reg_val) { + dev_info(&pdev->dev, + "Received DMA_VF_RINT intr: 0x%llx\n", reg_val); + octep_write_csr64(oct, CN93_SDP_EPF_DMA_VF_RINT(0), reg_val); + goto irq_handled; + } + + /* Check for PPVF INTR */ + reg_val = octep_read_csr64(oct, CN93_SDP_EPF_PP_VF_RINT(0)); + if (reg_val) { + dev_info(&pdev->dev, + "Received PP_VF_RINT intr: 0x%llx\n", reg_val); + octep_write_csr64(oct, CN93_SDP_EPF_PP_VF_RINT(0), reg_val); + goto irq_handled; + } + + /* Check for MISC INTR */ + reg_val = octep_read_csr64(oct, CN93_SDP_EPF_MISC_RINT); + if (reg_val) { + dev_info(&pdev->dev, + "Received MISC_RINT intr: 0x%llx\n", reg_val); + octep_write_csr64(oct, CN93_SDP_EPF_MISC_RINT, reg_val); + goto irq_handled; + } + + dev_info(&pdev->dev, "Reserved interrupts raised; Ignore\n"); +irq_handled: + return IRQ_HANDLED; +} + +/* Tx/Rx queue interrupt handler */ +static irqreturn_t octep_ioq_intr_handler_cn93_pf(void *data) +{ + struct octep_ioq_vector *vector = (struct octep_ioq_vector *)data; + struct octep_oq *oq = vector->oq; + + napi_schedule_irqoff(oq->napi); + return IRQ_HANDLED; +} + +/* soft reset of 93xx */ +static int octep_soft_reset_cn93_pf(struct octep_device *oct) +{ + dev_info(&oct->pdev->dev, "CN93XX: Doing soft reset\n"); + + octep_write_csr64(oct, CN93_SDP_WIN_WR_MASK_REG, 0xFF); + + /* Set core domain reset bit */ + OCTEP_PCI_WIN_WRITE(oct, CN93_RST_CORE_DOMAIN_W1S, 1); + /* Wait for 100ms as Octeon resets. */ + mdelay(100); + /* clear core domain reset bit */ + OCTEP_PCI_WIN_WRITE(oct, CN93_RST_CORE_DOMAIN_W1C, 1); + + return 0; +} + +/* Re-initialize Octeon hardware registers */ +static void octep_reinit_regs_cn93_pf(struct octep_device *oct) +{ + u32 i; + + for (i = 0; i < CFG_GET_PORTS_ACTIVE_IO_RINGS(oct->conf); i++) + oct->hw_ops.setup_iq_regs(oct, i); + + for (i = 0; i < CFG_GET_PORTS_ACTIVE_IO_RINGS(oct->conf); i++) + oct->hw_ops.setup_oq_regs(oct, i); + + oct->hw_ops.enable_interrupts(oct); + oct->hw_ops.enable_io_queues(oct); + + for (i = 0; i < CFG_GET_PORTS_ACTIVE_IO_RINGS(oct->conf); i++) + writel(oct->oq[i]->max_count, oct->oq[i]->pkts_credit_reg); +} + +/* Enable all interrupts */ +static void octep_enable_interrupts_cn93_pf(struct octep_device *oct) +{ + u64 intr_mask = 0ULL; + int srn, num_rings, i; + + srn = CFG_GET_PORTS_PF_SRN(oct->conf); + num_rings = CFG_GET_PORTS_ACTIVE_IO_RINGS(oct->conf); + + for (i = 0; i < num_rings; i++) + intr_mask |= (0x1ULL << (srn + i)); + + octep_write_csr64(oct, CN93_SDP_EPF_IRERR_RINT_ENA_W1S, intr_mask); + octep_write_csr64(oct, CN93_SDP_EPF_ORERR_RINT_ENA_W1S, intr_mask); + octep_write_csr64(oct, CN93_SDP_EPF_OEI_RINT_ENA_W1S, -1ULL); + octep_write_csr64(oct, CN93_SDP_EPF_MISC_RINT_ENA_W1S, intr_mask); + octep_write_csr64(oct, CN93_SDP_EPF_DMA_RINT_ENA_W1S, intr_mask); +} + +/* Disable all interrupts */ +static void octep_disable_interrupts_cn93_pf(struct octep_device *oct) +{ + u64 intr_mask = 0ULL; + int srn, num_rings, i; + + srn = CFG_GET_PORTS_PF_SRN(oct->conf); + num_rings = CFG_GET_PORTS_ACTIVE_IO_RINGS(oct->conf); + + for (i = 0; i < num_rings; i++) + intr_mask |= (0x1ULL << (srn + i)); + + octep_write_csr64(oct, CN93_SDP_EPF_IRERR_RINT_ENA_W1C, intr_mask); + octep_write_csr64(oct, CN93_SDP_EPF_ORERR_RINT_ENA_W1C, intr_mask); + octep_write_csr64(oct, CN93_SDP_EPF_OEI_RINT_ENA_W1C, -1ULL); + octep_write_csr64(oct, CN93_SDP_EPF_MISC_RINT_ENA_W1C, intr_mask); + octep_write_csr64(oct, CN93_SDP_EPF_DMA_RINT_ENA_W1C, intr_mask); +} + +/* Get new Octeon Read Index: index of descriptor that Octeon reads next. */ +static u32 octep_update_iq_read_index_cn93_pf(struct octep_iq *iq) +{ + u32 pkt_in_done = readl(iq->inst_cnt_reg); + u32 last_done, new_idx; + + last_done = pkt_in_done - iq->pkt_in_done; + iq->pkt_in_done = pkt_in_done; + + new_idx = (iq->octep_read_index + last_done) % iq->max_count; + + return new_idx; +} + +/* Enable a hardware Tx Queue */ +static void octep_enable_iq_cn93_pf(struct octep_device *oct, int iq_no) +{ + u64 loop = HZ; + u64 reg_val; + + iq_no += CFG_GET_PORTS_PF_SRN(oct->conf); + + octep_write_csr64(oct, CN93_SDP_R_IN_INSTR_DBELL(iq_no), 0xFFFFFFFF); + + while (octep_read_csr64(oct, CN93_SDP_R_IN_INSTR_DBELL(iq_no)) && + loop--) { + schedule_timeout_interruptible(1); + } + + reg_val = octep_read_csr64(oct, CN93_SDP_R_IN_INT_LEVELS(iq_no)); + reg_val |= (0x1ULL << 62); + octep_write_csr64(oct, CN93_SDP_R_IN_INT_LEVELS(iq_no), reg_val); + + reg_val = octep_read_csr64(oct, CN93_SDP_R_IN_ENABLE(iq_no)); + reg_val |= 0x1ULL; + octep_write_csr64(oct, CN93_SDP_R_IN_ENABLE(iq_no), reg_val); +} + +/* Enable a hardware Rx Queue */ +static void octep_enable_oq_cn93_pf(struct octep_device *oct, int oq_no) +{ + u64 reg_val = 0ULL; + + oq_no += CFG_GET_PORTS_PF_SRN(oct->conf); + + reg_val = octep_read_csr64(oct, CN93_SDP_R_OUT_INT_LEVELS(oq_no)); + reg_val |= (0x1ULL << 62); + octep_write_csr64(oct, CN93_SDP_R_OUT_INT_LEVELS(oq_no), reg_val); + + octep_write_csr64(oct, CN93_SDP_R_OUT_SLIST_DBELL(oq_no), 0xFFFFFFFF); + + reg_val = octep_read_csr64(oct, CN93_SDP_R_OUT_ENABLE(oq_no)); + reg_val |= 0x1ULL; + octep_write_csr64(oct, CN93_SDP_R_OUT_ENABLE(oq_no), reg_val); +} + +/* Enable all hardware Tx/Rx Queues assined to PF */ +static void octep_enable_io_queues_cn93_pf(struct octep_device *oct) +{ + u8 q; + + for (q = 0; q < CFG_GET_PORTS_ACTIVE_IO_RINGS(oct->conf); q++) { + octep_enable_iq_cn93_pf(oct, q); + octep_enable_oq_cn93_pf(oct, q); + } +} + +/* Disable a hardware Tx Queue assined to PF */ +static void octep_disable_iq_cn93_pf(struct octep_device *oct, int iq_no) +{ + u64 reg_val = 0ULL; + + iq_no += CFG_GET_PORTS_PF_SRN(oct->conf); + + reg_val = octep_read_csr64(oct, CN93_SDP_R_IN_ENABLE(iq_no)); + reg_val &= ~0x1ULL; + octep_write_csr64(oct, CN93_SDP_R_IN_ENABLE(iq_no), reg_val); +} + +/* Disable a hardware Rx Queue assined to PF */ +static void octep_disable_oq_cn93_pf(struct octep_device *oct, int oq_no) +{ + u64 reg_val = 0ULL; + + oq_no += CFG_GET_PORTS_PF_SRN(oct->conf); + reg_val = octep_read_csr64(oct, CN93_SDP_R_OUT_ENABLE(oq_no)); + reg_val &= ~0x1ULL; + octep_write_csr64(oct, CN93_SDP_R_OUT_ENABLE(oq_no), reg_val); +} + +/* Disable all hardware Tx/Rx Queues assined to PF */ +static void octep_disable_io_queues_cn93_pf(struct octep_device *oct) +{ + int q = 0; + + for (q = 0; q < CFG_GET_PORTS_ACTIVE_IO_RINGS(oct->conf); q++) { + octep_disable_iq_cn93_pf(oct, q); + octep_disable_oq_cn93_pf(oct, q); + } +} + +/* Dump hardware registers (including Tx/Rx queues) for debugging. */ +static void octep_dump_registers_cn93_pf(struct octep_device *oct) +{ + u8 srn, num_rings, q; + + srn = CFG_GET_PORTS_PF_SRN(oct->conf); + num_rings = CFG_GET_PORTS_ACTIVE_IO_RINGS(oct->conf); + + for (q = srn; q < srn + num_rings; q++) + cn93_dump_regs(oct, q); +} + +/** + * octep_device_setup_cn93_pf() - Setup Octeon device. + * + * @oct: Octeon device private data structure. + * + * - initialize hardware operations. + * - get target side pcie port number for the device. + * - setup window access to hardware registers. + * - set initial configuration and max limits. + * - setup hardware mapping of rings to the PF device. + */ +void octep_device_setup_cn93_pf(struct octep_device *oct) +{ + oct->hw_ops.setup_iq_regs = octep_setup_iq_regs_cn93_pf; + oct->hw_ops.setup_oq_regs = octep_setup_oq_regs_cn93_pf; + oct->hw_ops.setup_mbox_regs = octep_setup_mbox_regs_cn93_pf; + + oct->hw_ops.non_ioq_intr_handler = octep_non_ioq_intr_handler_cn93_pf; + oct->hw_ops.ioq_intr_handler = octep_ioq_intr_handler_cn93_pf; + oct->hw_ops.soft_reset = octep_soft_reset_cn93_pf; + oct->hw_ops.reinit_regs = octep_reinit_regs_cn93_pf; + + oct->hw_ops.enable_interrupts = octep_enable_interrupts_cn93_pf; + oct->hw_ops.disable_interrupts = octep_disable_interrupts_cn93_pf; + + oct->hw_ops.update_iq_read_idx = octep_update_iq_read_index_cn93_pf; + + oct->hw_ops.enable_iq = octep_enable_iq_cn93_pf; + oct->hw_ops.enable_oq = octep_enable_oq_cn93_pf; + oct->hw_ops.enable_io_queues = octep_enable_io_queues_cn93_pf; + + oct->hw_ops.disable_iq = octep_disable_iq_cn93_pf; + oct->hw_ops.disable_oq = octep_disable_oq_cn93_pf; + oct->hw_ops.disable_io_queues = octep_disable_io_queues_cn93_pf; + oct->hw_ops.reset_io_queues = octep_reset_io_queues_cn93_pf; + + oct->hw_ops.dump_registers = octep_dump_registers_cn93_pf; + + octep_setup_pci_window_regs_cn93_pf(oct); + + oct->pcie_port = octep_read_csr64(oct, CN93_SDP_MAC_NUMBER) & 0xff; + dev_info(&oct->pdev->dev, + "Octeon device using PCIE Port %d\n", oct->pcie_port); + + octep_init_config_cn93_pf(oct); + octep_configure_ring_mapping_cn93_pf(oct); +} diff --git a/drivers/net/ethernet/marvell/octeon_ep/octep_config.h b/drivers/net/ethernet/marvell/octeon_ep/octep_config.h new file mode 100644 index 000000000..f208f3f9a --- /dev/null +++ b/drivers/net/ethernet/marvell/octeon_ep/octep_config.h @@ -0,0 +1,204 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* Marvell Octeon EP (EndPoint) Ethernet Driver + * + * Copyright (C) 2020 Marvell. + * + */ + +#ifndef _OCTEP_CONFIG_H_ +#define _OCTEP_CONFIG_H_ + +/* Tx instruction types by length */ +#define OCTEP_32BYTE_INSTR 32 +#define OCTEP_64BYTE_INSTR 64 + +/* Tx Queue: maximum descriptors per ring */ +#define OCTEP_IQ_MAX_DESCRIPTORS 1024 +/* Minimum input (Tx) requests to be enqueued to ring doorbell */ +#define OCTEP_DB_MIN 1 +/* Packet threshold for Tx queue interrupt */ +#define OCTEP_IQ_INTR_THRESHOLD 0x0 + +/* Rx Queue: maximum descriptors per ring */ +#define OCTEP_OQ_MAX_DESCRIPTORS 1024 + +/* Rx buffer size: Use page size buffers. + * Build skb from allocated page buffer once the packet is received. + * When a gathered packet is received, make head page as skb head and + * page buffers in consecutive Rx descriptors as fragments. + */ +#define OCTEP_OQ_BUF_SIZE (SKB_WITH_OVERHEAD(PAGE_SIZE)) +#define OCTEP_OQ_PKTS_PER_INTR 128 +#define OCTEP_OQ_REFILL_THRESHOLD (OCTEP_OQ_MAX_DESCRIPTORS / 4) + +#define OCTEP_OQ_INTR_PKT_THRESHOLD 1 +#define OCTEP_OQ_INTR_TIME_THRESHOLD 10 + +#define OCTEP_MSIX_NAME_SIZE (IFNAMSIZ + 32) + +/* Tx Queue wake threshold + * wakeup a stopped Tx queue if minimum 2 descriptors are available. + * Even a skb with fragments consume only one Tx queue descriptor entry. + */ +#define OCTEP_WAKE_QUEUE_THRESHOLD 2 + +/* Minimum MTU supported by Octeon network interface */ +#define OCTEP_MIN_MTU ETH_MIN_MTU +/* Maximum MTU supported by Octeon interface*/ +#define OCTEP_MAX_MTU (10000 - (ETH_HLEN + ETH_FCS_LEN)) +/* Default MTU */ +#define OCTEP_DEFAULT_MTU 1500 + +/* Macros to get octeon config params */ +#define CFG_GET_IQ_CFG(cfg) ((cfg)->iq) +#define CFG_GET_IQ_NUM_DESC(cfg) ((cfg)->iq.num_descs) +#define CFG_GET_IQ_INSTR_TYPE(cfg) ((cfg)->iq.instr_type) +#define CFG_GET_IQ_PKIND(cfg) ((cfg)->iq.pkind) +#define CFG_GET_IQ_INSTR_SIZE(cfg) (64) +#define CFG_GET_IQ_DB_MIN(cfg) ((cfg)->iq.db_min) +#define CFG_GET_IQ_INTR_THRESHOLD(cfg) ((cfg)->iq.intr_threshold) + +#define CFG_GET_OQ_NUM_DESC(cfg) ((cfg)->oq.num_descs) +#define CFG_GET_OQ_BUF_SIZE(cfg) ((cfg)->oq.buf_size) +#define CFG_GET_OQ_REFILL_THRESHOLD(cfg) ((cfg)->oq.refill_threshold) +#define CFG_GET_OQ_INTR_PKT(cfg) ((cfg)->oq.oq_intr_pkt) +#define CFG_GET_OQ_INTR_TIME(cfg) ((cfg)->oq.oq_intr_time) + +#define CFG_GET_PORTS_MAX_IO_RINGS(cfg) ((cfg)->pf_ring_cfg.max_io_rings) +#define CFG_GET_PORTS_ACTIVE_IO_RINGS(cfg) ((cfg)->pf_ring_cfg.active_io_rings) +#define CFG_GET_PORTS_PF_SRN(cfg) ((cfg)->pf_ring_cfg.srn) + +#define CFG_GET_DPI_PKIND(cfg) ((cfg)->core_cfg.dpi_pkind) +#define CFG_GET_CORE_TICS_PER_US(cfg) ((cfg)->core_cfg.core_tics_per_us) +#define CFG_GET_COPROC_TICS_PER_US(cfg) ((cfg)->core_cfg.coproc_tics_per_us) + +#define CFG_GET_MAX_VFS(cfg) ((cfg)->sriov_cfg.max_vfs) +#define CFG_GET_ACTIVE_VFS(cfg) ((cfg)->sriov_cfg.active_vfs) +#define CFG_GET_MAX_RPVF(cfg) ((cfg)->sriov_cfg.max_rings_per_vf) +#define CFG_GET_ACTIVE_RPVF(cfg) ((cfg)->sriov_cfg.active_rings_per_vf) +#define CFG_GET_VF_SRN(cfg) ((cfg)->sriov_cfg.vf_srn) + +#define CFG_GET_IOQ_MSIX(cfg) ((cfg)->msix_cfg.ioq_msix) +#define CFG_GET_NON_IOQ_MSIX(cfg) ((cfg)->msix_cfg.non_ioq_msix) +#define CFG_GET_NON_IOQ_MSIX_NAMES(cfg) ((cfg)->msix_cfg.non_ioq_msix_names) + +#define CFG_GET_CTRL_MBOX_MEM_ADDR(cfg) ((cfg)->ctrl_mbox_cfg.barmem_addr) + +/* Hardware Tx Queue configuration. */ +struct octep_iq_config { + /* Size of the Input queue (number of commands) */ + u16 num_descs; + + /* Command size - 32 or 64 bytes */ + u16 instr_type; + + /* pkind for packets sent to Octeon */ + u16 pkind; + + /* Minimum number of commands pending to be posted to Octeon before driver + * hits the Input queue doorbell. + */ + u16 db_min; + + /* Trigger the IQ interrupt when processed cmd count reaches + * this level. + */ + u32 intr_threshold; +}; + +/* Hardware Rx Queue configuration. */ +struct octep_oq_config { + /* Size of Output queue (number of descriptors) */ + u16 num_descs; + + /* Size of buffer in this Output queue. */ + u16 buf_size; + + /* The number of buffers that were consumed during packet processing + * by the driver on this Output queue before the driver attempts to + * replenish the descriptor ring with new buffers. + */ + u16 refill_threshold; + + /* Interrupt Coalescing (Packet Count). Octeon will interrupt the host + * only if it sent as many packets as specified by this field. + * The driver usually does not use packet count interrupt coalescing. + */ + u32 oq_intr_pkt; + + /* Interrupt Coalescing (Time Interval). Octeon will interrupt the host + * if at least one packet was sent in the time interval specified by + * this field. The driver uses time interval interrupt coalescing by + * default. The time is specified in microseconds. + */ + u32 oq_intr_time; +}; + +/* Tx/Rx configuration */ +struct octep_pf_ring_config { + /* Max number of IOQs */ + u16 max_io_rings; + + /* Number of active IOQs */ + u16 active_io_rings; + + /* Starting IOQ number: this changes based on which PEM is used */ + u16 srn; +}; + +/* Octeon Hardware SRIOV config */ +struct octep_sriov_config { + /* Max number of VF devices supported */ + u16 max_vfs; + + /* Number of VF devices enabled */ + u16 active_vfs; + + /* Max number of rings assigned to VF */ + u8 max_rings_per_vf; + + /* Number of rings enabled per VF */ + u8 active_rings_per_vf; + + /* starting ring number of VF's: ring-0 of VF-0 of the PF */ + u16 vf_srn; +}; + +/* Octeon MSI-x config. */ +struct octep_msix_config { + /* Number of IOQ interrupts */ + u16 ioq_msix; + + /* Number of Non IOQ interrupts */ + u16 non_ioq_msix; + + /* Names of Non IOQ interrupts */ + char **non_ioq_msix_names; +}; + +struct octep_ctrl_mbox_config { + /* Barmem address for control mbox */ + void __iomem *barmem_addr; +}; + +/* Data Structure to hold configuration limits and active config */ +struct octep_config { + /* Input Queue attributes. */ + struct octep_iq_config iq; + + /* Output Queue attributes. */ + struct octep_oq_config oq; + + /* NIC Port Configuration */ + struct octep_pf_ring_config pf_ring_cfg; + + /* SRIOV configuration of the PF */ + struct octep_sriov_config sriov_cfg; + + /* MSI-X interrupt config */ + struct octep_msix_config msix_cfg; + + /* ctrl mbox config */ + struct octep_ctrl_mbox_config ctrl_mbox_cfg; +}; +#endif /* _OCTEP_CONFIG_H_ */ diff --git a/drivers/net/ethernet/marvell/octeon_ep/octep_ctrl_mbox.c b/drivers/net/ethernet/marvell/octeon_ep/octep_ctrl_mbox.c new file mode 100644 index 000000000..39322e4dd --- /dev/null +++ b/drivers/net/ethernet/marvell/octeon_ep/octep_ctrl_mbox.c @@ -0,0 +1,245 @@ +// SPDX-License-Identifier: GPL-2.0 +/* Marvell Octeon EP (EndPoint) Ethernet Driver + * + * Copyright (C) 2020 Marvell. + * + */ +#include <linux/types.h> +#include <linux/errno.h> +#include <linux/string.h> +#include <linux/mutex.h> +#include <linux/jiffies.h> +#include <linux/sched.h> +#include <linux/sched/signal.h> +#include <linux/io.h> +#include <linux/pci.h> +#include <linux/etherdevice.h> + +#include "octep_ctrl_mbox.h" +#include "octep_config.h" +#include "octep_main.h" + +/* Timeout in msecs for message response */ +#define OCTEP_CTRL_MBOX_MSG_TIMEOUT_MS 100 +/* Time in msecs to wait for message response */ +#define OCTEP_CTRL_MBOX_MSG_WAIT_MS 10 + +#define OCTEP_CTRL_MBOX_INFO_MAGIC_NUM_OFFSET(m) (m) +#define OCTEP_CTRL_MBOX_INFO_BARMEM_SZ_OFFSET(m) ((m) + 8) +#define OCTEP_CTRL_MBOX_INFO_HOST_STATUS_OFFSET(m) ((m) + 24) +#define OCTEP_CTRL_MBOX_INFO_FW_STATUS_OFFSET(m) ((m) + 144) + +#define OCTEP_CTRL_MBOX_H2FQ_INFO_OFFSET(m) ((m) + OCTEP_CTRL_MBOX_INFO_SZ) +#define OCTEP_CTRL_MBOX_H2FQ_PROD_OFFSET(m) (OCTEP_CTRL_MBOX_H2FQ_INFO_OFFSET(m)) +#define OCTEP_CTRL_MBOX_H2FQ_CONS_OFFSET(m) ((OCTEP_CTRL_MBOX_H2FQ_INFO_OFFSET(m)) + 4) +#define OCTEP_CTRL_MBOX_H2FQ_ELEM_SZ_OFFSET(m) ((OCTEP_CTRL_MBOX_H2FQ_INFO_OFFSET(m)) + 8) +#define OCTEP_CTRL_MBOX_H2FQ_ELEM_CNT_OFFSET(m) ((OCTEP_CTRL_MBOX_H2FQ_INFO_OFFSET(m)) + 12) + +#define OCTEP_CTRL_MBOX_F2HQ_INFO_OFFSET(m) ((m) + \ + OCTEP_CTRL_MBOX_INFO_SZ + \ + OCTEP_CTRL_MBOX_H2FQ_INFO_SZ) +#define OCTEP_CTRL_MBOX_F2HQ_PROD_OFFSET(m) (OCTEP_CTRL_MBOX_F2HQ_INFO_OFFSET(m)) +#define OCTEP_CTRL_MBOX_F2HQ_CONS_OFFSET(m) ((OCTEP_CTRL_MBOX_F2HQ_INFO_OFFSET(m)) + 4) +#define OCTEP_CTRL_MBOX_F2HQ_ELEM_SZ_OFFSET(m) ((OCTEP_CTRL_MBOX_F2HQ_INFO_OFFSET(m)) + 8) +#define OCTEP_CTRL_MBOX_F2HQ_ELEM_CNT_OFFSET(m) ((OCTEP_CTRL_MBOX_F2HQ_INFO_OFFSET(m)) + 12) + +#define OCTEP_CTRL_MBOX_Q_OFFSET(m, i) ((m) + \ + (sizeof(struct octep_ctrl_mbox_msg) * (i))) + +static u32 octep_ctrl_mbox_circq_inc(u32 index, u32 mask) +{ + return (index + 1) & mask; +} + +static u32 octep_ctrl_mbox_circq_space(u32 pi, u32 ci, u32 mask) +{ + return mask - ((pi - ci) & mask); +} + +static u32 octep_ctrl_mbox_circq_depth(u32 pi, u32 ci, u32 mask) +{ + return ((pi - ci) & mask); +} + +int octep_ctrl_mbox_init(struct octep_ctrl_mbox *mbox) +{ + u64 magic_num, status; + + if (!mbox) + return -EINVAL; + + if (!mbox->barmem) { + pr_info("octep_ctrl_mbox : Invalid barmem %p\n", mbox->barmem); + return -EINVAL; + } + + magic_num = readq(OCTEP_CTRL_MBOX_INFO_MAGIC_NUM_OFFSET(mbox->barmem)); + if (magic_num != OCTEP_CTRL_MBOX_MAGIC_NUMBER) { + pr_info("octep_ctrl_mbox : Invalid magic number %llx\n", magic_num); + return -EINVAL; + } + + status = readq(OCTEP_CTRL_MBOX_INFO_FW_STATUS_OFFSET(mbox->barmem)); + if (status != OCTEP_CTRL_MBOX_STATUS_READY) { + pr_info("octep_ctrl_mbox : Firmware is not ready.\n"); + return -EINVAL; + } + + mbox->barmem_sz = readl(OCTEP_CTRL_MBOX_INFO_BARMEM_SZ_OFFSET(mbox->barmem)); + + writeq(OCTEP_CTRL_MBOX_STATUS_INIT, OCTEP_CTRL_MBOX_INFO_HOST_STATUS_OFFSET(mbox->barmem)); + + mbox->h2fq.elem_cnt = readl(OCTEP_CTRL_MBOX_H2FQ_ELEM_CNT_OFFSET(mbox->barmem)); + mbox->h2fq.elem_sz = readl(OCTEP_CTRL_MBOX_H2FQ_ELEM_SZ_OFFSET(mbox->barmem)); + mbox->h2fq.mask = (mbox->h2fq.elem_cnt - 1); + mutex_init(&mbox->h2fq_lock); + + mbox->f2hq.elem_cnt = readl(OCTEP_CTRL_MBOX_F2HQ_ELEM_CNT_OFFSET(mbox->barmem)); + mbox->f2hq.elem_sz = readl(OCTEP_CTRL_MBOX_F2HQ_ELEM_SZ_OFFSET(mbox->barmem)); + mbox->f2hq.mask = (mbox->f2hq.elem_cnt - 1); + mutex_init(&mbox->f2hq_lock); + + mbox->h2fq.hw_prod = OCTEP_CTRL_MBOX_H2FQ_PROD_OFFSET(mbox->barmem); + mbox->h2fq.hw_cons = OCTEP_CTRL_MBOX_H2FQ_CONS_OFFSET(mbox->barmem); + mbox->h2fq.hw_q = mbox->barmem + + OCTEP_CTRL_MBOX_INFO_SZ + + OCTEP_CTRL_MBOX_H2FQ_INFO_SZ + + OCTEP_CTRL_MBOX_F2HQ_INFO_SZ; + + mbox->f2hq.hw_prod = OCTEP_CTRL_MBOX_F2HQ_PROD_OFFSET(mbox->barmem); + mbox->f2hq.hw_cons = OCTEP_CTRL_MBOX_F2HQ_CONS_OFFSET(mbox->barmem); + mbox->f2hq.hw_q = mbox->h2fq.hw_q + + ((mbox->h2fq.elem_sz + sizeof(union octep_ctrl_mbox_msg_hdr)) * + mbox->h2fq.elem_cnt); + + /* ensure ready state is seen after everything is initialized */ + wmb(); + writeq(OCTEP_CTRL_MBOX_STATUS_READY, OCTEP_CTRL_MBOX_INFO_HOST_STATUS_OFFSET(mbox->barmem)); + + pr_info("Octep ctrl mbox : Init successful.\n"); + + return 0; +} + +int octep_ctrl_mbox_send(struct octep_ctrl_mbox *mbox, struct octep_ctrl_mbox_msg *msg) +{ + unsigned long timeout = msecs_to_jiffies(OCTEP_CTRL_MBOX_MSG_TIMEOUT_MS); + unsigned long period = msecs_to_jiffies(OCTEP_CTRL_MBOX_MSG_WAIT_MS); + struct octep_ctrl_mbox_q *q; + unsigned long expire; + u64 *mbuf, *word0; + u8 __iomem *qidx; + u16 pi, ci; + int i; + + if (!mbox || !msg) + return -EINVAL; + + q = &mbox->h2fq; + pi = readl(q->hw_prod); + ci = readl(q->hw_cons); + + if (!octep_ctrl_mbox_circq_space(pi, ci, q->mask)) + return -ENOMEM; + + qidx = OCTEP_CTRL_MBOX_Q_OFFSET(q->hw_q, pi); + mbuf = (u64 *)msg->msg; + word0 = &msg->hdr.word0; + + mutex_lock(&mbox->h2fq_lock); + for (i = 1; i <= msg->hdr.sizew; i++) + writeq(*mbuf++, (qidx + (i * 8))); + + writeq(*word0, qidx); + + pi = octep_ctrl_mbox_circq_inc(pi, q->mask); + writel(pi, q->hw_prod); + mutex_unlock(&mbox->h2fq_lock); + + /* don't check for notification response */ + if (msg->hdr.flags & OCTEP_CTRL_MBOX_MSG_HDR_FLAG_NOTIFY) + return 0; + + expire = jiffies + timeout; + while (true) { + *word0 = readq(qidx); + if (msg->hdr.flags == OCTEP_CTRL_MBOX_MSG_HDR_FLAG_RESP) + break; + schedule_timeout_interruptible(period); + if (signal_pending(current) || time_after(jiffies, expire)) { + pr_info("octep_ctrl_mbox: Timed out\n"); + return -EBUSY; + } + } + mbuf = (u64 *)msg->msg; + for (i = 1; i <= msg->hdr.sizew; i++) + *mbuf++ = readq(qidx + (i * 8)); + + return 0; +} + +int octep_ctrl_mbox_recv(struct octep_ctrl_mbox *mbox, struct octep_ctrl_mbox_msg *msg) +{ + struct octep_ctrl_mbox_q *q; + u32 count, pi, ci; + u8 __iomem *qidx; + u64 *mbuf; + int i; + + if (!mbox || !msg) + return -EINVAL; + + q = &mbox->f2hq; + pi = readl(q->hw_prod); + ci = readl(q->hw_cons); + count = octep_ctrl_mbox_circq_depth(pi, ci, q->mask); + if (!count) + return -EAGAIN; + + qidx = OCTEP_CTRL_MBOX_Q_OFFSET(q->hw_q, ci); + mbuf = (u64 *)msg->msg; + + mutex_lock(&mbox->f2hq_lock); + + msg->hdr.word0 = readq(qidx); + for (i = 1; i <= msg->hdr.sizew; i++) + *mbuf++ = readq(qidx + (i * 8)); + + ci = octep_ctrl_mbox_circq_inc(ci, q->mask); + writel(ci, q->hw_cons); + + mutex_unlock(&mbox->f2hq_lock); + + if (msg->hdr.flags != OCTEP_CTRL_MBOX_MSG_HDR_FLAG_REQ || !mbox->process_req) + return 0; + + mbox->process_req(mbox->user_ctx, msg); + mbuf = (u64 *)msg->msg; + for (i = 1; i <= msg->hdr.sizew; i++) + writeq(*mbuf++, (qidx + (i * 8))); + + writeq(msg->hdr.word0, qidx); + + return 0; +} + +int octep_ctrl_mbox_uninit(struct octep_ctrl_mbox *mbox) +{ + if (!mbox) + return -EINVAL; + + writeq(OCTEP_CTRL_MBOX_STATUS_UNINIT, + OCTEP_CTRL_MBOX_INFO_HOST_STATUS_OFFSET(mbox->barmem)); + /* ensure uninit state is written before uninitialization */ + wmb(); + + mutex_destroy(&mbox->h2fq_lock); + mutex_destroy(&mbox->f2hq_lock); + + writeq(OCTEP_CTRL_MBOX_STATUS_INVALID, + OCTEP_CTRL_MBOX_INFO_HOST_STATUS_OFFSET(mbox->barmem)); + + pr_info("Octep ctrl mbox : Uninit successful.\n"); + + return 0; +} diff --git a/drivers/net/ethernet/marvell/octeon_ep/octep_ctrl_mbox.h b/drivers/net/ethernet/marvell/octeon_ep/octep_ctrl_mbox.h new file mode 100644 index 000000000..2dc5753cf --- /dev/null +++ b/drivers/net/ethernet/marvell/octeon_ep/octep_ctrl_mbox.h @@ -0,0 +1,170 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* Marvell Octeon EP (EndPoint) Ethernet Driver + * + * Copyright (C) 2020 Marvell. + * + */ + #ifndef __OCTEP_CTRL_MBOX_H__ +#define __OCTEP_CTRL_MBOX_H__ + +/* barmem structure + * |===========================================| + * |Info (16 + 120 + 120 = 256 bytes) | + * |-------------------------------------------| + * |magic number (8 bytes) | + * |bar memory size (4 bytes) | + * |reserved (4 bytes) | + * |-------------------------------------------| + * |host version (8 bytes) | + * |host status (8 bytes) | + * |host reserved (104 bytes) | + * |-------------------------------------------| + * |fw version (8 bytes) | + * |fw status (8 bytes) | + * |fw reserved (104 bytes) | + * |===========================================| + * |Host to Fw Queue info (16 bytes) | + * |-------------------------------------------| + * |producer index (4 bytes) | + * |consumer index (4 bytes) | + * |element size (4 bytes) | + * |element count (4 bytes) | + * |===========================================| + * |Fw to Host Queue info (16 bytes) | + * |-------------------------------------------| + * |producer index (4 bytes) | + * |consumer index (4 bytes) | + * |element size (4 bytes) | + * |element count (4 bytes) | + * |===========================================| + * |Host to Fw Queue | + * |-------------------------------------------| + * |((elem_sz + hdr(8 bytes)) * elem_cnt) bytes| + * |===========================================| + * |===========================================| + * |Fw to Host Queue | + * |-------------------------------------------| + * |((elem_sz + hdr(8 bytes)) * elem_cnt) bytes| + * |===========================================| + */ + +#define OCTEP_CTRL_MBOX_MAGIC_NUMBER 0xdeaddeadbeefbeefull + +/* Size of mbox info in bytes */ +#define OCTEP_CTRL_MBOX_INFO_SZ 256 +/* Size of mbox host to target queue info in bytes */ +#define OCTEP_CTRL_MBOX_H2FQ_INFO_SZ 16 +/* Size of mbox target to host queue info in bytes */ +#define OCTEP_CTRL_MBOX_F2HQ_INFO_SZ 16 +/* Size of mbox queue in bytes */ +#define OCTEP_CTRL_MBOX_Q_SZ(sz, cnt) (((sz) + 8) * (cnt)) +/* Size of mbox in bytes */ +#define OCTEP_CTRL_MBOX_SZ(hsz, hcnt, fsz, fcnt) (OCTEP_CTRL_MBOX_INFO_SZ + \ + OCTEP_CTRL_MBOX_H2FQ_INFO_SZ + \ + OCTEP_CTRL_MBOX_F2HQ_INFO_SZ + \ + OCTEP_CTRL_MBOX_Q_SZ(hsz, hcnt) + \ + OCTEP_CTRL_MBOX_Q_SZ(fsz, fcnt)) + +/* Valid request message */ +#define OCTEP_CTRL_MBOX_MSG_HDR_FLAG_REQ BIT(0) +/* Valid response message */ +#define OCTEP_CTRL_MBOX_MSG_HDR_FLAG_RESP BIT(1) +/* Valid notification, no response required */ +#define OCTEP_CTRL_MBOX_MSG_HDR_FLAG_NOTIFY BIT(2) + +enum octep_ctrl_mbox_status { + OCTEP_CTRL_MBOX_STATUS_INVALID = 0, + OCTEP_CTRL_MBOX_STATUS_INIT, + OCTEP_CTRL_MBOX_STATUS_READY, + OCTEP_CTRL_MBOX_STATUS_UNINIT +}; + +/* mbox message */ +union octep_ctrl_mbox_msg_hdr { + u64 word0; + struct { + /* OCTEP_CTRL_MBOX_MSG_HDR_FLAG_* */ + u32 flags; + /* size of message in words excluding header */ + u32 sizew; + }; +}; + +/* mbox message */ +struct octep_ctrl_mbox_msg { + /* mbox transaction header */ + union octep_ctrl_mbox_msg_hdr hdr; + /* pointer to message buffer */ + void *msg; +}; + +/* Mbox queue */ +struct octep_ctrl_mbox_q { + /* q element size, should be aligned to unsigned long */ + u16 elem_sz; + /* q element count, should be power of 2 */ + u16 elem_cnt; + /* q mask */ + u16 mask; + /* producer address in bar mem */ + u8 __iomem *hw_prod; + /* consumer address in bar mem */ + u8 __iomem *hw_cons; + /* q base address in bar mem */ + u8 __iomem *hw_q; +}; + +struct octep_ctrl_mbox { + /* host driver version */ + u64 version; + /* size of bar memory */ + u32 barmem_sz; + /* pointer to BAR memory */ + u8 __iomem *barmem; + /* user context for callback, can be null */ + void *user_ctx; + /* callback handler for processing request, called from octep_ctrl_mbox_recv */ + int (*process_req)(void *user_ctx, struct octep_ctrl_mbox_msg *msg); + /* host-to-fw queue */ + struct octep_ctrl_mbox_q h2fq; + /* fw-to-host queue */ + struct octep_ctrl_mbox_q f2hq; + /* lock for h2fq */ + struct mutex h2fq_lock; + /* lock for f2hq */ + struct mutex f2hq_lock; +}; + +/* Initialize control mbox. + * + * @param mbox: non-null pointer to struct octep_ctrl_mbox. + * + * return value: 0 on success, -errno on failure. + */ +int octep_ctrl_mbox_init(struct octep_ctrl_mbox *mbox); + +/* Send mbox message. + * + * @param mbox: non-null pointer to struct octep_ctrl_mbox. + * + * return value: 0 on success, -errno on failure. + */ +int octep_ctrl_mbox_send(struct octep_ctrl_mbox *mbox, struct octep_ctrl_mbox_msg *msg); + +/* Retrieve mbox message. + * + * @param mbox: non-null pointer to struct octep_ctrl_mbox. + * + * return value: 0 on success, -errno on failure. + */ +int octep_ctrl_mbox_recv(struct octep_ctrl_mbox *mbox, struct octep_ctrl_mbox_msg *msg); + +/* Uninitialize control mbox. + * + * @param ep: non-null pointer to struct octep_ctrl_mbox. + * + * return value: 0 on success, -errno on failure. + */ +int octep_ctrl_mbox_uninit(struct octep_ctrl_mbox *mbox); + +#endif /* __OCTEP_CTRL_MBOX_H__ */ diff --git a/drivers/net/ethernet/marvell/octeon_ep/octep_ctrl_net.c b/drivers/net/ethernet/marvell/octeon_ep/octep_ctrl_net.c new file mode 100644 index 000000000..7c00c896a --- /dev/null +++ b/drivers/net/ethernet/marvell/octeon_ep/octep_ctrl_net.c @@ -0,0 +1,194 @@ +// SPDX-License-Identifier: GPL-2.0 +/* Marvell Octeon EP (EndPoint) Ethernet Driver + * + * Copyright (C) 2020 Marvell. + * + */ +#include <linux/string.h> +#include <linux/types.h> +#include <linux/etherdevice.h> +#include <linux/pci.h> + +#include "octep_config.h" +#include "octep_main.h" +#include "octep_ctrl_net.h" + +int octep_get_link_status(struct octep_device *oct) +{ + struct octep_ctrl_net_h2f_req req = {}; + struct octep_ctrl_net_h2f_resp *resp; + struct octep_ctrl_mbox_msg msg = {}; + int err; + + req.hdr.cmd = OCTEP_CTRL_NET_H2F_CMD_LINK_STATUS; + req.link.cmd = OCTEP_CTRL_NET_CMD_GET; + + msg.hdr.flags = OCTEP_CTRL_MBOX_MSG_HDR_FLAG_REQ; + msg.hdr.sizew = OCTEP_CTRL_NET_H2F_STATE_REQ_SZW; + msg.msg = &req; + err = octep_ctrl_mbox_send(&oct->ctrl_mbox, &msg); + if (err) + return err; + + resp = (struct octep_ctrl_net_h2f_resp *)&req; + return resp->link.state; +} + +void octep_set_link_status(struct octep_device *oct, bool up) +{ + struct octep_ctrl_net_h2f_req req = {}; + struct octep_ctrl_mbox_msg msg = {}; + + req.hdr.cmd = OCTEP_CTRL_NET_H2F_CMD_LINK_STATUS; + req.link.cmd = OCTEP_CTRL_NET_CMD_SET; + req.link.state = (up) ? OCTEP_CTRL_NET_STATE_UP : OCTEP_CTRL_NET_STATE_DOWN; + + msg.hdr.flags = OCTEP_CTRL_MBOX_MSG_HDR_FLAG_REQ; + msg.hdr.sizew = OCTEP_CTRL_NET_H2F_STATE_REQ_SZW; + msg.msg = &req; + octep_ctrl_mbox_send(&oct->ctrl_mbox, &msg); +} + +void octep_set_rx_state(struct octep_device *oct, bool up) +{ + struct octep_ctrl_net_h2f_req req = {}; + struct octep_ctrl_mbox_msg msg = {}; + + req.hdr.cmd = OCTEP_CTRL_NET_H2F_CMD_RX_STATE; + req.link.cmd = OCTEP_CTRL_NET_CMD_SET; + req.link.state = (up) ? OCTEP_CTRL_NET_STATE_UP : OCTEP_CTRL_NET_STATE_DOWN; + + msg.hdr.flags = OCTEP_CTRL_MBOX_MSG_HDR_FLAG_REQ; + msg.hdr.sizew = OCTEP_CTRL_NET_H2F_STATE_REQ_SZW; + msg.msg = &req; + octep_ctrl_mbox_send(&oct->ctrl_mbox, &msg); +} + +int octep_get_mac_addr(struct octep_device *oct, u8 *addr) +{ + struct octep_ctrl_net_h2f_req req = {}; + struct octep_ctrl_net_h2f_resp *resp; + struct octep_ctrl_mbox_msg msg = {}; + int err; + + req.hdr.cmd = OCTEP_CTRL_NET_H2F_CMD_MAC; + req.link.cmd = OCTEP_CTRL_NET_CMD_GET; + + msg.hdr.flags = OCTEP_CTRL_MBOX_MSG_HDR_FLAG_REQ; + msg.hdr.sizew = OCTEP_CTRL_NET_H2F_MAC_REQ_SZW; + msg.msg = &req; + err = octep_ctrl_mbox_send(&oct->ctrl_mbox, &msg); + if (err) + return err; + + resp = (struct octep_ctrl_net_h2f_resp *)&req; + memcpy(addr, resp->mac.addr, ETH_ALEN); + + return err; +} + +int octep_set_mac_addr(struct octep_device *oct, u8 *addr) +{ + struct octep_ctrl_net_h2f_req req = {}; + struct octep_ctrl_mbox_msg msg = {}; + + req.hdr.cmd = OCTEP_CTRL_NET_H2F_CMD_MAC; + req.mac.cmd = OCTEP_CTRL_NET_CMD_SET; + memcpy(&req.mac.addr, addr, ETH_ALEN); + + msg.hdr.flags = OCTEP_CTRL_MBOX_MSG_HDR_FLAG_REQ; + msg.hdr.sizew = OCTEP_CTRL_NET_H2F_MAC_REQ_SZW; + msg.msg = &req; + + return octep_ctrl_mbox_send(&oct->ctrl_mbox, &msg); +} + +int octep_set_mtu(struct octep_device *oct, int mtu) +{ + struct octep_ctrl_net_h2f_req req = {}; + struct octep_ctrl_mbox_msg msg = {}; + + req.hdr.cmd = OCTEP_CTRL_NET_H2F_CMD_MTU; + req.mtu.cmd = OCTEP_CTRL_NET_CMD_SET; + req.mtu.val = mtu; + + msg.hdr.flags = OCTEP_CTRL_MBOX_MSG_HDR_FLAG_REQ; + msg.hdr.sizew = OCTEP_CTRL_NET_H2F_MTU_REQ_SZW; + msg.msg = &req; + + return octep_ctrl_mbox_send(&oct->ctrl_mbox, &msg); +} + +int octep_get_if_stats(struct octep_device *oct) +{ + void __iomem *iface_rx_stats; + void __iomem *iface_tx_stats; + struct octep_ctrl_net_h2f_req req = {}; + struct octep_ctrl_mbox_msg msg = {}; + int err; + + req.hdr.cmd = OCTEP_CTRL_NET_H2F_CMD_GET_IF_STATS; + req.mac.cmd = OCTEP_CTRL_NET_CMD_GET; + req.get_stats.offset = oct->ctrl_mbox_ifstats_offset; + + msg.hdr.flags = OCTEP_CTRL_MBOX_MSG_HDR_FLAG_REQ; + msg.hdr.sizew = OCTEP_CTRL_NET_H2F_GET_STATS_REQ_SZW; + msg.msg = &req; + err = octep_ctrl_mbox_send(&oct->ctrl_mbox, &msg); + if (err) + return err; + + iface_rx_stats = oct->ctrl_mbox.barmem + oct->ctrl_mbox_ifstats_offset; + iface_tx_stats = oct->ctrl_mbox.barmem + oct->ctrl_mbox_ifstats_offset + + sizeof(struct octep_iface_rx_stats); + memcpy_fromio(&oct->iface_rx_stats, iface_rx_stats, sizeof(struct octep_iface_rx_stats)); + memcpy_fromio(&oct->iface_tx_stats, iface_tx_stats, sizeof(struct octep_iface_tx_stats)); + + return err; +} + +int octep_get_link_info(struct octep_device *oct) +{ + struct octep_ctrl_net_h2f_req req = {}; + struct octep_ctrl_net_h2f_resp *resp; + struct octep_ctrl_mbox_msg msg = {}; + int err; + + req.hdr.cmd = OCTEP_CTRL_NET_H2F_CMD_LINK_INFO; + req.mac.cmd = OCTEP_CTRL_NET_CMD_GET; + + msg.hdr.flags = OCTEP_CTRL_MBOX_MSG_HDR_FLAG_REQ; + msg.hdr.sizew = OCTEP_CTRL_NET_H2F_LINK_INFO_REQ_SZW; + msg.msg = &req; + err = octep_ctrl_mbox_send(&oct->ctrl_mbox, &msg); + if (err) + return err; + + resp = (struct octep_ctrl_net_h2f_resp *)&req; + oct->link_info.supported_modes = resp->link_info.supported_modes; + oct->link_info.advertised_modes = resp->link_info.advertised_modes; + oct->link_info.autoneg = resp->link_info.autoneg; + oct->link_info.pause = resp->link_info.pause; + oct->link_info.speed = resp->link_info.speed; + + return err; +} + +int octep_set_link_info(struct octep_device *oct, struct octep_iface_link_info *link_info) +{ + struct octep_ctrl_net_h2f_req req = {}; + struct octep_ctrl_mbox_msg msg = {}; + + req.hdr.cmd = OCTEP_CTRL_NET_H2F_CMD_LINK_INFO; + req.link_info.cmd = OCTEP_CTRL_NET_CMD_SET; + req.link_info.info.advertised_modes = link_info->advertised_modes; + req.link_info.info.autoneg = link_info->autoneg; + req.link_info.info.pause = link_info->pause; + req.link_info.info.speed = link_info->speed; + + msg.hdr.flags = OCTEP_CTRL_MBOX_MSG_HDR_FLAG_REQ; + msg.hdr.sizew = OCTEP_CTRL_NET_H2F_LINK_INFO_REQ_SZW; + msg.msg = &req; + + return octep_ctrl_mbox_send(&oct->ctrl_mbox, &msg); +} diff --git a/drivers/net/ethernet/marvell/octeon_ep/octep_ctrl_net.h b/drivers/net/ethernet/marvell/octeon_ep/octep_ctrl_net.h new file mode 100644 index 000000000..f23b58381 --- /dev/null +++ b/drivers/net/ethernet/marvell/octeon_ep/octep_ctrl_net.h @@ -0,0 +1,299 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* Marvell Octeon EP (EndPoint) Ethernet Driver + * + * Copyright (C) 2020 Marvell. + * + */ +#ifndef __OCTEP_CTRL_NET_H__ +#define __OCTEP_CTRL_NET_H__ + +/* Supported commands */ +enum octep_ctrl_net_cmd { + OCTEP_CTRL_NET_CMD_GET = 0, + OCTEP_CTRL_NET_CMD_SET, +}; + +/* Supported states */ +enum octep_ctrl_net_state { + OCTEP_CTRL_NET_STATE_DOWN = 0, + OCTEP_CTRL_NET_STATE_UP, +}; + +/* Supported replies */ +enum octep_ctrl_net_reply { + OCTEP_CTRL_NET_REPLY_OK = 0, + OCTEP_CTRL_NET_REPLY_GENERIC_FAIL, + OCTEP_CTRL_NET_REPLY_INVALID_PARAM, +}; + +/* Supported host to fw commands */ +enum octep_ctrl_net_h2f_cmd { + OCTEP_CTRL_NET_H2F_CMD_INVALID = 0, + OCTEP_CTRL_NET_H2F_CMD_MTU, + OCTEP_CTRL_NET_H2F_CMD_MAC, + OCTEP_CTRL_NET_H2F_CMD_GET_IF_STATS, + OCTEP_CTRL_NET_H2F_CMD_GET_XSTATS, + OCTEP_CTRL_NET_H2F_CMD_GET_Q_STATS, + OCTEP_CTRL_NET_H2F_CMD_LINK_STATUS, + OCTEP_CTRL_NET_H2F_CMD_RX_STATE, + OCTEP_CTRL_NET_H2F_CMD_LINK_INFO, +}; + +/* Supported fw to host commands */ +enum octep_ctrl_net_f2h_cmd { + OCTEP_CTRL_NET_F2H_CMD_INVALID = 0, + OCTEP_CTRL_NET_F2H_CMD_LINK_STATUS, +}; + +struct octep_ctrl_net_req_hdr { + /* sender id */ + u16 sender; + /* receiver id */ + u16 receiver; + /* octep_ctrl_net_h2t_cmd */ + u16 cmd; + /* reserved */ + u16 rsvd0; +}; + +/* get/set mtu request */ +struct octep_ctrl_net_h2f_req_cmd_mtu { + /* enum octep_ctrl_net_cmd */ + u16 cmd; + /* 0-65535 */ + u16 val; +}; + +/* get/set mac request */ +struct octep_ctrl_net_h2f_req_cmd_mac { + /* enum octep_ctrl_net_cmd */ + u16 cmd; + /* xx:xx:xx:xx:xx:xx */ + u8 addr[ETH_ALEN]; +}; + +/* get if_stats, xstats, q_stats request */ +struct octep_ctrl_net_h2f_req_cmd_get_stats { + /* offset into barmem where fw should copy over stats */ + u32 offset; +}; + +/* get/set link state, rx state */ +struct octep_ctrl_net_h2f_req_cmd_state { + /* enum octep_ctrl_net_cmd */ + u16 cmd; + /* enum octep_ctrl_net_state */ + u16 state; +}; + +/* link info */ +struct octep_ctrl_net_link_info { + /* Bitmap of Supported link speeds/modes */ + u64 supported_modes; + /* Bitmap of Advertised link speeds/modes */ + u64 advertised_modes; + /* Autonegotation state; bit 0=disabled; bit 1=enabled */ + u8 autoneg; + /* Pause frames setting. bit 0=disabled; bit 1=enabled */ + u8 pause; + /* Negotiated link speed in Mbps */ + u32 speed; +}; + +/* get/set link info */ +struct octep_ctrl_net_h2f_req_cmd_link_info { + /* enum octep_ctrl_net_cmd */ + u16 cmd; + /* struct octep_ctrl_net_link_info */ + struct octep_ctrl_net_link_info info; +}; + +/* Host to fw request data */ +struct octep_ctrl_net_h2f_req { + struct octep_ctrl_net_req_hdr hdr; + union { + struct octep_ctrl_net_h2f_req_cmd_mtu mtu; + struct octep_ctrl_net_h2f_req_cmd_mac mac; + struct octep_ctrl_net_h2f_req_cmd_get_stats get_stats; + struct octep_ctrl_net_h2f_req_cmd_state link; + struct octep_ctrl_net_h2f_req_cmd_state rx; + struct octep_ctrl_net_h2f_req_cmd_link_info link_info; + }; +} __packed; + +struct octep_ctrl_net_resp_hdr { + /* sender id */ + u16 sender; + /* receiver id */ + u16 receiver; + /* octep_ctrl_net_h2t_cmd */ + u16 cmd; + /* octep_ctrl_net_reply */ + u16 reply; +}; + +/* get mtu response */ +struct octep_ctrl_net_h2f_resp_cmd_mtu { + /* 0-65535 */ + u16 val; +}; + +/* get mac response */ +struct octep_ctrl_net_h2f_resp_cmd_mac { + /* xx:xx:xx:xx:xx:xx */ + u8 addr[ETH_ALEN]; +}; + +/* get link state, rx state response */ +struct octep_ctrl_net_h2f_resp_cmd_state { + /* enum octep_ctrl_net_state */ + u16 state; +}; + +/* Host to fw response data */ +struct octep_ctrl_net_h2f_resp { + struct octep_ctrl_net_resp_hdr hdr; + union { + struct octep_ctrl_net_h2f_resp_cmd_mtu mtu; + struct octep_ctrl_net_h2f_resp_cmd_mac mac; + struct octep_ctrl_net_h2f_resp_cmd_state link; + struct octep_ctrl_net_h2f_resp_cmd_state rx; + struct octep_ctrl_net_link_info link_info; + }; +} __packed; + +/* link state notofication */ +struct octep_ctrl_net_f2h_req_cmd_state { + /* enum octep_ctrl_net_state */ + u16 state; +}; + +/* Fw to host request data */ +struct octep_ctrl_net_f2h_req { + struct octep_ctrl_net_req_hdr hdr; + union { + struct octep_ctrl_net_f2h_req_cmd_state link; + }; +}; + +/* Fw to host response data */ +struct octep_ctrl_net_f2h_resp { + struct octep_ctrl_net_resp_hdr hdr; +}; + +/* Size of host to fw octep_ctrl_mbox queue element */ +union octep_ctrl_net_h2f_data_sz { + struct octep_ctrl_net_h2f_req h2f_req; + struct octep_ctrl_net_h2f_resp h2f_resp; +}; + +/* Size of fw to host octep_ctrl_mbox queue element */ +union octep_ctrl_net_f2h_data_sz { + struct octep_ctrl_net_f2h_req f2h_req; + struct octep_ctrl_net_f2h_resp f2h_resp; +}; + +/* size of host to fw data in words */ +#define OCTEP_CTRL_NET_H2F_DATA_SZW ((sizeof(union octep_ctrl_net_h2f_data_sz)) / \ + (sizeof(unsigned long))) + +/* size of fw to host data in words */ +#define OCTEP_CTRL_NET_F2H_DATA_SZW ((sizeof(union octep_ctrl_net_f2h_data_sz)) / \ + (sizeof(unsigned long))) + +/* size in words of get/set mtu request */ +#define OCTEP_CTRL_NET_H2F_MTU_REQ_SZW 2 +/* size in words of get/set mac request */ +#define OCTEP_CTRL_NET_H2F_MAC_REQ_SZW 2 +/* size in words of get stats request */ +#define OCTEP_CTRL_NET_H2F_GET_STATS_REQ_SZW 2 +/* size in words of get/set state request */ +#define OCTEP_CTRL_NET_H2F_STATE_REQ_SZW 2 +/* size in words of get/set link info request */ +#define OCTEP_CTRL_NET_H2F_LINK_INFO_REQ_SZW 4 + +/* size in words of get mtu response */ +#define OCTEP_CTRL_NET_H2F_GET_MTU_RESP_SZW 2 +/* size in words of set mtu response */ +#define OCTEP_CTRL_NET_H2F_SET_MTU_RESP_SZW 1 +/* size in words of get mac response */ +#define OCTEP_CTRL_NET_H2F_GET_MAC_RESP_SZW 2 +/* size in words of set mac response */ +#define OCTEP_CTRL_NET_H2F_SET_MAC_RESP_SZW 1 +/* size in words of get state request */ +#define OCTEP_CTRL_NET_H2F_GET_STATE_RESP_SZW 2 +/* size in words of set state request */ +#define OCTEP_CTRL_NET_H2F_SET_STATE_RESP_SZW 1 +/* size in words of get link info request */ +#define OCTEP_CTRL_NET_H2F_GET_LINK_INFO_RESP_SZW 4 +/* size in words of set link info request */ +#define OCTEP_CTRL_NET_H2F_SET_LINK_INFO_RESP_SZW 1 + +/** Get link status from firmware. + * + * @param oct: non-null pointer to struct octep_device. + * + * return value: link status 0=down, 1=up. + */ +int octep_get_link_status(struct octep_device *oct); + +/** Set link status in firmware. + * + * @param oct: non-null pointer to struct octep_device. + * @param up: boolean status. + */ +void octep_set_link_status(struct octep_device *oct, bool up); + +/** Set rx state in firmware. + * + * @param oct: non-null pointer to struct octep_device. + * @param up: boolean status. + */ +void octep_set_rx_state(struct octep_device *oct, bool up); + +/** Get mac address from firmware. + * + * @param oct: non-null pointer to struct octep_device. + * @param addr: non-null pointer to mac address. + * + * return value: 0 on success, -errno on failure. + */ +int octep_get_mac_addr(struct octep_device *oct, u8 *addr); + +/** Set mac address in firmware. + * + * @param oct: non-null pointer to struct octep_device. + * @param addr: non-null pointer to mac address. + */ +int octep_set_mac_addr(struct octep_device *oct, u8 *addr); + +/** Set mtu in firmware. + * + * @param oct: non-null pointer to struct octep_device. + * @param mtu: mtu. + */ +int octep_set_mtu(struct octep_device *oct, int mtu); + +/** Get interface statistics from firmware. + * + * @param oct: non-null pointer to struct octep_device. + * + * return value: 0 on success, -errno on failure. + */ +int octep_get_if_stats(struct octep_device *oct); + +/** Get link info from firmware. + * + * @param oct: non-null pointer to struct octep_device. + * + * return value: 0 on success, -errno on failure. + */ +int octep_get_link_info(struct octep_device *oct); + +/** Set link info in firmware. + * + * @param oct: non-null pointer to struct octep_device. + */ +int octep_set_link_info(struct octep_device *oct, struct octep_iface_link_info *link_info); + +#endif /* __OCTEP_CTRL_NET_H__ */ diff --git a/drivers/net/ethernet/marvell/octeon_ep/octep_ethtool.c b/drivers/net/ethernet/marvell/octeon_ep/octep_ethtool.c new file mode 100644 index 000000000..87ef129b2 --- /dev/null +++ b/drivers/net/ethernet/marvell/octeon_ep/octep_ethtool.c @@ -0,0 +1,463 @@ +// SPDX-License-Identifier: GPL-2.0 +/* Marvell Octeon EP (EndPoint) Ethernet Driver + * + * Copyright (C) 2020 Marvell. + * + */ + +#include <linux/pci.h> +#include <linux/netdevice.h> +#include <linux/ethtool.h> + +#include "octep_config.h" +#include "octep_main.h" +#include "octep_ctrl_net.h" + +static const char octep_gstrings_global_stats[][ETH_GSTRING_LEN] = { + "rx_packets", + "tx_packets", + "rx_bytes", + "tx_bytes", + "rx_alloc_errors", + "tx_busy_errors", + "rx_dropped", + "tx_dropped", + "tx_hw_pkts", + "tx_hw_octs", + "tx_hw_bcast", + "tx_hw_mcast", + "tx_hw_underflow", + "tx_hw_control", + "tx_less_than_64", + "tx_equal_64", + "tx_equal_65_to_127", + "tx_equal_128_to_255", + "tx_equal_256_to_511", + "tx_equal_512_to_1023", + "tx_equal_1024_to_1518", + "tx_greater_than_1518", + "rx_hw_pkts", + "rx_hw_bytes", + "rx_hw_bcast", + "rx_hw_mcast", + "rx_pause_pkts", + "rx_pause_bytes", + "rx_dropped_pkts_fifo_full", + "rx_dropped_bytes_fifo_full", + "rx_err_pkts", +}; + +#define OCTEP_GLOBAL_STATS_CNT (sizeof(octep_gstrings_global_stats) / ETH_GSTRING_LEN) + +static const char octep_gstrings_tx_q_stats[][ETH_GSTRING_LEN] = { + "tx_packets_posted[Q-%u]", + "tx_packets_completed[Q-%u]", + "tx_bytes[Q-%u]", + "tx_busy[Q-%u]", +}; + +#define OCTEP_TX_Q_STATS_CNT (sizeof(octep_gstrings_tx_q_stats) / ETH_GSTRING_LEN) + +static const char octep_gstrings_rx_q_stats[][ETH_GSTRING_LEN] = { + "rx_packets[Q-%u]", + "rx_bytes[Q-%u]", + "rx_alloc_errors[Q-%u]", +}; + +#define OCTEP_RX_Q_STATS_CNT (sizeof(octep_gstrings_rx_q_stats) / ETH_GSTRING_LEN) + +static void octep_get_drvinfo(struct net_device *netdev, + struct ethtool_drvinfo *info) +{ + struct octep_device *oct = netdev_priv(netdev); + + strscpy(info->driver, OCTEP_DRV_NAME, sizeof(info->driver)); + strscpy(info->bus_info, pci_name(oct->pdev), sizeof(info->bus_info)); +} + +static void octep_get_strings(struct net_device *netdev, + u32 stringset, u8 *data) +{ + struct octep_device *oct = netdev_priv(netdev); + u16 num_queues = CFG_GET_PORTS_ACTIVE_IO_RINGS(oct->conf); + char *strings = (char *)data; + int i, j; + + switch (stringset) { + case ETH_SS_STATS: + for (i = 0; i < OCTEP_GLOBAL_STATS_CNT; i++) { + snprintf(strings, ETH_GSTRING_LEN, + octep_gstrings_global_stats[i]); + strings += ETH_GSTRING_LEN; + } + + for (i = 0; i < num_queues; i++) { + for (j = 0; j < OCTEP_TX_Q_STATS_CNT; j++) { + snprintf(strings, ETH_GSTRING_LEN, + octep_gstrings_tx_q_stats[j], i); + strings += ETH_GSTRING_LEN; + } + } + + for (i = 0; i < num_queues; i++) { + for (j = 0; j < OCTEP_RX_Q_STATS_CNT; j++) { + snprintf(strings, ETH_GSTRING_LEN, + octep_gstrings_rx_q_stats[j], i); + strings += ETH_GSTRING_LEN; + } + } + break; + default: + break; + } +} + +static int octep_get_sset_count(struct net_device *netdev, int sset) +{ + struct octep_device *oct = netdev_priv(netdev); + u16 num_queues = CFG_GET_PORTS_ACTIVE_IO_RINGS(oct->conf); + + switch (sset) { + case ETH_SS_STATS: + return OCTEP_GLOBAL_STATS_CNT + (num_queues * + (OCTEP_TX_Q_STATS_CNT + OCTEP_RX_Q_STATS_CNT)); + break; + default: + return -EOPNOTSUPP; + } +} + +static void +octep_get_ethtool_stats(struct net_device *netdev, + struct ethtool_stats *stats, u64 *data) +{ + struct octep_device *oct = netdev_priv(netdev); + struct octep_iface_tx_stats *iface_tx_stats; + struct octep_iface_rx_stats *iface_rx_stats; + u64 rx_packets, rx_bytes; + u64 tx_packets, tx_bytes; + u64 rx_alloc_errors, tx_busy_errors; + int q, i; + + rx_packets = 0; + rx_bytes = 0; + tx_packets = 0; + tx_bytes = 0; + rx_alloc_errors = 0; + tx_busy_errors = 0; + tx_packets = 0; + tx_bytes = 0; + rx_packets = 0; + rx_bytes = 0; + + octep_get_if_stats(oct); + iface_tx_stats = &oct->iface_tx_stats; + iface_rx_stats = &oct->iface_rx_stats; + + for (q = 0; q < oct->num_oqs; q++) { + struct octep_iq *iq = oct->iq[q]; + struct octep_oq *oq = oct->oq[q]; + + tx_packets += iq->stats.instr_completed; + tx_bytes += iq->stats.bytes_sent; + tx_busy_errors += iq->stats.tx_busy; + + rx_packets += oq->stats.packets; + rx_bytes += oq->stats.bytes; + rx_alloc_errors += oq->stats.alloc_failures; + } + i = 0; + data[i++] = rx_packets; + data[i++] = tx_packets; + data[i++] = rx_bytes; + data[i++] = tx_bytes; + data[i++] = rx_alloc_errors; + data[i++] = tx_busy_errors; + data[i++] = iface_rx_stats->dropped_pkts_fifo_full + + iface_rx_stats->err_pkts; + data[i++] = iface_tx_stats->xscol + + iface_tx_stats->xsdef; + data[i++] = iface_tx_stats->pkts; + data[i++] = iface_tx_stats->octs; + data[i++] = iface_tx_stats->bcst; + data[i++] = iface_tx_stats->mcst; + data[i++] = iface_tx_stats->undflw; + data[i++] = iface_tx_stats->ctl; + data[i++] = iface_tx_stats->hist_lt64; + data[i++] = iface_tx_stats->hist_eq64; + data[i++] = iface_tx_stats->hist_65to127; + data[i++] = iface_tx_stats->hist_128to255; + data[i++] = iface_tx_stats->hist_256to511; + data[i++] = iface_tx_stats->hist_512to1023; + data[i++] = iface_tx_stats->hist_1024to1518; + data[i++] = iface_tx_stats->hist_gt1518; + data[i++] = iface_rx_stats->pkts; + data[i++] = iface_rx_stats->octets; + data[i++] = iface_rx_stats->mcast_pkts; + data[i++] = iface_rx_stats->bcast_pkts; + data[i++] = iface_rx_stats->pause_pkts; + data[i++] = iface_rx_stats->pause_octets; + data[i++] = iface_rx_stats->dropped_pkts_fifo_full; + data[i++] = iface_rx_stats->dropped_octets_fifo_full; + data[i++] = iface_rx_stats->err_pkts; + + /* Per Tx Queue stats */ + for (q = 0; q < oct->num_iqs; q++) { + struct octep_iq *iq = oct->iq[q]; + + data[i++] = iq->stats.instr_posted; + data[i++] = iq->stats.instr_completed; + data[i++] = iq->stats.bytes_sent; + data[i++] = iq->stats.tx_busy; + } + + /* Per Rx Queue stats */ + for (q = 0; q < oct->num_oqs; q++) { + struct octep_oq *oq = oct->oq[q]; + + data[i++] = oq->stats.packets; + data[i++] = oq->stats.bytes; + data[i++] = oq->stats.alloc_failures; + } +} + +#define OCTEP_SET_ETHTOOL_LINK_MODES_BITMAP(octep_speeds, ksettings, name) \ +{ \ + if ((octep_speeds) & BIT(OCTEP_LINK_MODE_10GBASE_T)) \ + ethtool_link_ksettings_add_link_mode(ksettings, name, 10000baseT_Full); \ + if ((octep_speeds) & BIT(OCTEP_LINK_MODE_10GBASE_R)) \ + ethtool_link_ksettings_add_link_mode(ksettings, name, 10000baseR_FEC); \ + if ((octep_speeds) & BIT(OCTEP_LINK_MODE_10GBASE_CR)) \ + ethtool_link_ksettings_add_link_mode(ksettings, name, 10000baseCR_Full); \ + if ((octep_speeds) & BIT(OCTEP_LINK_MODE_10GBASE_KR)) \ + ethtool_link_ksettings_add_link_mode(ksettings, name, 10000baseKR_Full); \ + if ((octep_speeds) & BIT(OCTEP_LINK_MODE_10GBASE_LR)) \ + ethtool_link_ksettings_add_link_mode(ksettings, name, 10000baseLR_Full); \ + if ((octep_speeds) & BIT(OCTEP_LINK_MODE_10GBASE_SR)) \ + ethtool_link_ksettings_add_link_mode(ksettings, name, 10000baseSR_Full); \ + if ((octep_speeds) & BIT(OCTEP_LINK_MODE_25GBASE_CR)) \ + ethtool_link_ksettings_add_link_mode(ksettings, name, 25000baseCR_Full); \ + if ((octep_speeds) & BIT(OCTEP_LINK_MODE_25GBASE_KR)) \ + ethtool_link_ksettings_add_link_mode(ksettings, name, 25000baseKR_Full); \ + if ((octep_speeds) & BIT(OCTEP_LINK_MODE_25GBASE_SR)) \ + ethtool_link_ksettings_add_link_mode(ksettings, name, 25000baseSR_Full); \ + if ((octep_speeds) & BIT(OCTEP_LINK_MODE_40GBASE_CR4)) \ + ethtool_link_ksettings_add_link_mode(ksettings, name, 40000baseCR4_Full); \ + if ((octep_speeds) & BIT(OCTEP_LINK_MODE_40GBASE_KR4)) \ + ethtool_link_ksettings_add_link_mode(ksettings, name, 40000baseKR4_Full); \ + if ((octep_speeds) & BIT(OCTEP_LINK_MODE_40GBASE_LR4)) \ + ethtool_link_ksettings_add_link_mode(ksettings, name, 40000baseLR4_Full); \ + if ((octep_speeds) & BIT(OCTEP_LINK_MODE_40GBASE_SR4)) \ + ethtool_link_ksettings_add_link_mode(ksettings, name, 40000baseSR4_Full); \ + if ((octep_speeds) & BIT(OCTEP_LINK_MODE_50GBASE_CR2)) \ + ethtool_link_ksettings_add_link_mode(ksettings, name, 50000baseCR2_Full); \ + if ((octep_speeds) & BIT(OCTEP_LINK_MODE_50GBASE_KR2)) \ + ethtool_link_ksettings_add_link_mode(ksettings, name, 50000baseKR2_Full); \ + if ((octep_speeds) & BIT(OCTEP_LINK_MODE_50GBASE_SR2)) \ + ethtool_link_ksettings_add_link_mode(ksettings, name, 50000baseSR2_Full); \ + if ((octep_speeds) & BIT(OCTEP_LINK_MODE_50GBASE_CR)) \ + ethtool_link_ksettings_add_link_mode(ksettings, name, 50000baseCR_Full); \ + if ((octep_speeds) & BIT(OCTEP_LINK_MODE_50GBASE_KR)) \ + ethtool_link_ksettings_add_link_mode(ksettings, name, 50000baseKR_Full); \ + if ((octep_speeds) & BIT(OCTEP_LINK_MODE_50GBASE_LR)) \ + ethtool_link_ksettings_add_link_mode(ksettings, name, 50000baseLR_ER_FR_Full); \ + if ((octep_speeds) & BIT(OCTEP_LINK_MODE_50GBASE_SR)) \ + ethtool_link_ksettings_add_link_mode(ksettings, name, 50000baseSR_Full); \ + if ((octep_speeds) & BIT(OCTEP_LINK_MODE_100GBASE_CR4)) \ + ethtool_link_ksettings_add_link_mode(ksettings, name, 100000baseCR4_Full); \ + if ((octep_speeds) & BIT(OCTEP_LINK_MODE_100GBASE_KR4)) \ + ethtool_link_ksettings_add_link_mode(ksettings, name, 100000baseKR4_Full); \ + if ((octep_speeds) & BIT(OCTEP_LINK_MODE_100GBASE_LR4)) \ + ethtool_link_ksettings_add_link_mode(ksettings, name, 100000baseLR4_ER4_Full); \ + if ((octep_speeds) & BIT(OCTEP_LINK_MODE_100GBASE_SR4)) \ + ethtool_link_ksettings_add_link_mode(ksettings, name, 100000baseSR4_Full); \ +} + +static int octep_get_link_ksettings(struct net_device *netdev, + struct ethtool_link_ksettings *cmd) +{ + struct octep_device *oct = netdev_priv(netdev); + struct octep_iface_link_info *link_info; + u32 advertised_modes, supported_modes; + + ethtool_link_ksettings_zero_link_mode(cmd, supported); + ethtool_link_ksettings_zero_link_mode(cmd, advertising); + + octep_get_link_info(oct); + + advertised_modes = oct->link_info.advertised_modes; + supported_modes = oct->link_info.supported_modes; + link_info = &oct->link_info; + + OCTEP_SET_ETHTOOL_LINK_MODES_BITMAP(supported_modes, cmd, supported); + OCTEP_SET_ETHTOOL_LINK_MODES_BITMAP(advertised_modes, cmd, advertising); + + if (link_info->autoneg) { + if (link_info->autoneg & OCTEP_LINK_MODE_AUTONEG_SUPPORTED) + ethtool_link_ksettings_add_link_mode(cmd, supported, Autoneg); + if (link_info->autoneg & OCTEP_LINK_MODE_AUTONEG_ADVERTISED) { + ethtool_link_ksettings_add_link_mode(cmd, advertising, Autoneg); + cmd->base.autoneg = AUTONEG_ENABLE; + } else { + cmd->base.autoneg = AUTONEG_DISABLE; + } + } else { + cmd->base.autoneg = AUTONEG_DISABLE; + } + + if (link_info->pause) { + if (link_info->pause & OCTEP_LINK_MODE_PAUSE_SUPPORTED) + ethtool_link_ksettings_add_link_mode(cmd, supported, Pause); + if (link_info->pause & OCTEP_LINK_MODE_PAUSE_ADVERTISED) + ethtool_link_ksettings_add_link_mode(cmd, advertising, Pause); + } + + cmd->base.port = PORT_FIBRE; + ethtool_link_ksettings_add_link_mode(cmd, supported, FIBRE); + ethtool_link_ksettings_add_link_mode(cmd, advertising, FIBRE); + + if (netif_carrier_ok(netdev)) { + cmd->base.speed = link_info->speed; + cmd->base.duplex = DUPLEX_FULL; + } else { + cmd->base.speed = SPEED_UNKNOWN; + cmd->base.duplex = DUPLEX_UNKNOWN; + } + return 0; +} + +static int octep_set_link_ksettings(struct net_device *netdev, + const struct ethtool_link_ksettings *cmd) +{ + struct octep_device *oct = netdev_priv(netdev); + struct octep_iface_link_info link_info_new; + struct octep_iface_link_info *link_info; + u64 advertised = 0; + u8 autoneg = 0; + int err; + + link_info = &oct->link_info; + memcpy(&link_info_new, link_info, sizeof(struct octep_iface_link_info)); + + /* Only Full duplex is supported; + * Assume full duplex when duplex is unknown. + */ + if (cmd->base.duplex != DUPLEX_FULL && + cmd->base.duplex != DUPLEX_UNKNOWN) + return -EOPNOTSUPP; + + if (cmd->base.autoneg == AUTONEG_ENABLE) { + if (!(link_info->autoneg & OCTEP_LINK_MODE_AUTONEG_SUPPORTED)) + return -EOPNOTSUPP; + autoneg = 1; + } + + if (!bitmap_subset(cmd->link_modes.advertising, + cmd->link_modes.supported, + __ETHTOOL_LINK_MODE_MASK_NBITS)) + return -EINVAL; + + if (ethtool_link_ksettings_test_link_mode(cmd, advertising, + 10000baseT_Full)) + advertised |= BIT(OCTEP_LINK_MODE_10GBASE_T); + if (ethtool_link_ksettings_test_link_mode(cmd, advertising, + 10000baseR_FEC)) + advertised |= BIT(OCTEP_LINK_MODE_10GBASE_R); + if (ethtool_link_ksettings_test_link_mode(cmd, advertising, + 10000baseCR_Full)) + advertised |= BIT(OCTEP_LINK_MODE_10GBASE_CR); + if (ethtool_link_ksettings_test_link_mode(cmd, advertising, + 10000baseKR_Full)) + advertised |= BIT(OCTEP_LINK_MODE_10GBASE_KR); + if (ethtool_link_ksettings_test_link_mode(cmd, advertising, + 10000baseLR_Full)) + advertised |= BIT(OCTEP_LINK_MODE_10GBASE_LR); + if (ethtool_link_ksettings_test_link_mode(cmd, advertising, + 10000baseSR_Full)) + advertised |= BIT(OCTEP_LINK_MODE_10GBASE_SR); + if (ethtool_link_ksettings_test_link_mode(cmd, advertising, + 25000baseCR_Full)) + advertised |= BIT(OCTEP_LINK_MODE_25GBASE_CR); + if (ethtool_link_ksettings_test_link_mode(cmd, advertising, + 25000baseKR_Full)) + advertised |= BIT(OCTEP_LINK_MODE_25GBASE_KR); + if (ethtool_link_ksettings_test_link_mode(cmd, advertising, + 25000baseSR_Full)) + advertised |= BIT(OCTEP_LINK_MODE_25GBASE_SR); + if (ethtool_link_ksettings_test_link_mode(cmd, advertising, + 40000baseCR4_Full)) + advertised |= BIT(OCTEP_LINK_MODE_40GBASE_CR4); + if (ethtool_link_ksettings_test_link_mode(cmd, advertising, + 40000baseKR4_Full)) + advertised |= BIT(OCTEP_LINK_MODE_40GBASE_KR4); + if (ethtool_link_ksettings_test_link_mode(cmd, advertising, + 40000baseLR4_Full)) + advertised |= BIT(OCTEP_LINK_MODE_40GBASE_LR4); + if (ethtool_link_ksettings_test_link_mode(cmd, advertising, + 40000baseSR4_Full)) + advertised |= BIT(OCTEP_LINK_MODE_40GBASE_SR4); + if (ethtool_link_ksettings_test_link_mode(cmd, advertising, + 50000baseCR2_Full)) + advertised |= BIT(OCTEP_LINK_MODE_50GBASE_CR2); + if (ethtool_link_ksettings_test_link_mode(cmd, advertising, + 50000baseKR2_Full)) + advertised |= BIT(OCTEP_LINK_MODE_50GBASE_KR2); + if (ethtool_link_ksettings_test_link_mode(cmd, advertising, + 50000baseSR2_Full)) + advertised |= BIT(OCTEP_LINK_MODE_50GBASE_SR2); + if (ethtool_link_ksettings_test_link_mode(cmd, advertising, + 50000baseCR_Full)) + advertised |= BIT(OCTEP_LINK_MODE_50GBASE_CR); + if (ethtool_link_ksettings_test_link_mode(cmd, advertising, + 50000baseKR_Full)) + advertised |= BIT(OCTEP_LINK_MODE_50GBASE_KR); + if (ethtool_link_ksettings_test_link_mode(cmd, advertising, + 50000baseLR_ER_FR_Full)) + advertised |= BIT(OCTEP_LINK_MODE_50GBASE_LR); + if (ethtool_link_ksettings_test_link_mode(cmd, advertising, + 50000baseSR_Full)) + advertised |= BIT(OCTEP_LINK_MODE_50GBASE_SR); + if (ethtool_link_ksettings_test_link_mode(cmd, advertising, + 100000baseCR4_Full)) + advertised |= BIT(OCTEP_LINK_MODE_100GBASE_CR4); + if (ethtool_link_ksettings_test_link_mode(cmd, advertising, + 100000baseKR4_Full)) + advertised |= BIT(OCTEP_LINK_MODE_100GBASE_KR4); + if (ethtool_link_ksettings_test_link_mode(cmd, advertising, + 100000baseLR4_ER4_Full)) + advertised |= BIT(OCTEP_LINK_MODE_100GBASE_LR4); + if (ethtool_link_ksettings_test_link_mode(cmd, advertising, + 100000baseSR4_Full)) + advertised |= BIT(OCTEP_LINK_MODE_100GBASE_SR4); + + if (advertised == link_info->advertised_modes && + cmd->base.speed == link_info->speed && + cmd->base.autoneg == link_info->autoneg) + return 0; + + link_info_new.advertised_modes = advertised; + link_info_new.speed = cmd->base.speed; + link_info_new.autoneg = autoneg; + + err = octep_set_link_info(oct, &link_info_new); + if (err) + return err; + + memcpy(link_info, &link_info_new, sizeof(struct octep_iface_link_info)); + return 0; +} + +static const struct ethtool_ops octep_ethtool_ops = { + .get_drvinfo = octep_get_drvinfo, + .get_link = ethtool_op_get_link, + .get_strings = octep_get_strings, + .get_sset_count = octep_get_sset_count, + .get_ethtool_stats = octep_get_ethtool_stats, + .get_link_ksettings = octep_get_link_ksettings, + .set_link_ksettings = octep_set_link_ksettings, +}; + +void octep_set_ethtool_ops(struct net_device *netdev) +{ + netdev->ethtool_ops = &octep_ethtool_ops; +} diff --git a/drivers/net/ethernet/marvell/octeon_ep/octep_main.c b/drivers/net/ethernet/marvell/octeon_ep/octep_main.c new file mode 100644 index 000000000..e171097c1 --- /dev/null +++ b/drivers/net/ethernet/marvell/octeon_ep/octep_main.c @@ -0,0 +1,1191 @@ +// SPDX-License-Identifier: GPL-2.0 +/* Marvell Octeon EP (EndPoint) Ethernet Driver + * + * Copyright (C) 2020 Marvell. + * + */ + +#include <linux/types.h> +#include <linux/module.h> +#include <linux/pci.h> +#include <linux/aer.h> +#include <linux/netdevice.h> +#include <linux/etherdevice.h> +#include <linux/rtnetlink.h> +#include <linux/vmalloc.h> + +#include "octep_config.h" +#include "octep_main.h" +#include "octep_ctrl_net.h" + +struct workqueue_struct *octep_wq; + +/* Supported Devices */ +static const struct pci_device_id octep_pci_id_tbl[] = { + {PCI_DEVICE(PCI_VENDOR_ID_CAVIUM, OCTEP_PCI_DEVICE_ID_CN93_PF)}, + {0, }, +}; +MODULE_DEVICE_TABLE(pci, octep_pci_id_tbl); + +MODULE_AUTHOR("Veerasenareddy Burru <vburru@marvell.com>"); +MODULE_DESCRIPTION(OCTEP_DRV_STRING); +MODULE_LICENSE("GPL"); + +/** + * octep_alloc_ioq_vectors() - Allocate Tx/Rx Queue interrupt info. + * + * @oct: Octeon device private data structure. + * + * Allocate resources to hold per Tx/Rx queue interrupt info. + * This is the information passed to interrupt handler, from which napi poll + * is scheduled and includes quick access to private data of Tx/Rx queue + * corresponding to the interrupt being handled. + * + * Return: 0, on successful allocation of resources for all queue interrupts. + * -1, if failed to allocate any resource. + */ +static int octep_alloc_ioq_vectors(struct octep_device *oct) +{ + int i; + struct octep_ioq_vector *ioq_vector; + + for (i = 0; i < oct->num_oqs; i++) { + oct->ioq_vector[i] = vzalloc(sizeof(*oct->ioq_vector[i])); + if (!oct->ioq_vector[i]) + goto free_ioq_vector; + + ioq_vector = oct->ioq_vector[i]; + ioq_vector->iq = oct->iq[i]; + ioq_vector->oq = oct->oq[i]; + ioq_vector->octep_dev = oct; + } + + dev_info(&oct->pdev->dev, "Allocated %d IOQ vectors\n", oct->num_oqs); + return 0; + +free_ioq_vector: + while (i) { + i--; + vfree(oct->ioq_vector[i]); + oct->ioq_vector[i] = NULL; + } + return -1; +} + +/** + * octep_free_ioq_vectors() - Free Tx/Rx Queue interrupt vector info. + * + * @oct: Octeon device private data structure. + */ +static void octep_free_ioq_vectors(struct octep_device *oct) +{ + int i; + + for (i = 0; i < oct->num_oqs; i++) { + if (oct->ioq_vector[i]) { + vfree(oct->ioq_vector[i]); + oct->ioq_vector[i] = NULL; + } + } + netdev_info(oct->netdev, "Freed IOQ Vectors\n"); +} + +/** + * octep_enable_msix_range() - enable MSI-x interrupts. + * + * @oct: Octeon device private data structure. + * + * Allocate and enable all MSI-x interrupts (queue and non-queue interrupts) + * for the Octeon device. + * + * Return: 0, on successfully enabling all MSI-x interrupts. + * -1, if failed to enable any MSI-x interrupt. + */ +static int octep_enable_msix_range(struct octep_device *oct) +{ + int num_msix, msix_allocated; + int i; + + /* Generic interrupts apart from input/output queues */ + num_msix = oct->num_oqs + CFG_GET_NON_IOQ_MSIX(oct->conf); + oct->msix_entries = kcalloc(num_msix, + sizeof(struct msix_entry), GFP_KERNEL); + if (!oct->msix_entries) + goto msix_alloc_err; + + for (i = 0; i < num_msix; i++) + oct->msix_entries[i].entry = i; + + msix_allocated = pci_enable_msix_range(oct->pdev, oct->msix_entries, + num_msix, num_msix); + if (msix_allocated != num_msix) { + dev_err(&oct->pdev->dev, + "Failed to enable %d msix irqs; got only %d\n", + num_msix, msix_allocated); + goto enable_msix_err; + } + oct->num_irqs = msix_allocated; + dev_info(&oct->pdev->dev, "MSI-X enabled successfully\n"); + + return 0; + +enable_msix_err: + if (msix_allocated > 0) + pci_disable_msix(oct->pdev); + kfree(oct->msix_entries); + oct->msix_entries = NULL; +msix_alloc_err: + return -1; +} + +/** + * octep_disable_msix() - disable MSI-x interrupts. + * + * @oct: Octeon device private data structure. + * + * Disable MSI-x on the Octeon device. + */ +static void octep_disable_msix(struct octep_device *oct) +{ + pci_disable_msix(oct->pdev); + kfree(oct->msix_entries); + oct->msix_entries = NULL; + dev_info(&oct->pdev->dev, "Disabled MSI-X\n"); +} + +/** + * octep_non_ioq_intr_handler() - common handler for all generic interrupts. + * + * @irq: Interrupt number. + * @data: interrupt data. + * + * this is common handler for all non-queue (generic) interrupts. + */ +static irqreturn_t octep_non_ioq_intr_handler(int irq, void *data) +{ + struct octep_device *oct = data; + + return oct->hw_ops.non_ioq_intr_handler(oct); +} + +/** + * octep_ioq_intr_handler() - handler for all Tx/Rx queue interrupts. + * + * @irq: Interrupt number. + * @data: interrupt data contains pointers to Tx/Rx queue private data + * and correspong NAPI context. + * + * this is common handler for all non-queue (generic) interrupts. + */ +static irqreturn_t octep_ioq_intr_handler(int irq, void *data) +{ + struct octep_ioq_vector *ioq_vector = data; + struct octep_device *oct = ioq_vector->octep_dev; + + return oct->hw_ops.ioq_intr_handler(ioq_vector); +} + +/** + * octep_request_irqs() - Register interrupt handlers. + * + * @oct: Octeon device private data structure. + * + * Register handlers for all queue and non-queue interrupts. + * + * Return: 0, on successful registration of all interrupt handlers. + * -1, on any error. + */ +static int octep_request_irqs(struct octep_device *oct) +{ + struct net_device *netdev = oct->netdev; + struct octep_ioq_vector *ioq_vector; + struct msix_entry *msix_entry; + char **non_ioq_msix_names; + int num_non_ioq_msix; + int ret, i, j; + + num_non_ioq_msix = CFG_GET_NON_IOQ_MSIX(oct->conf); + non_ioq_msix_names = CFG_GET_NON_IOQ_MSIX_NAMES(oct->conf); + + oct->non_ioq_irq_names = kcalloc(num_non_ioq_msix, + OCTEP_MSIX_NAME_SIZE, GFP_KERNEL); + if (!oct->non_ioq_irq_names) + goto alloc_err; + + /* First few MSI-X interrupts are non-queue interrupts */ + for (i = 0; i < num_non_ioq_msix; i++) { + char *irq_name; + + irq_name = &oct->non_ioq_irq_names[i * OCTEP_MSIX_NAME_SIZE]; + msix_entry = &oct->msix_entries[i]; + + snprintf(irq_name, OCTEP_MSIX_NAME_SIZE, + "%s-%s", netdev->name, non_ioq_msix_names[i]); + ret = request_irq(msix_entry->vector, + octep_non_ioq_intr_handler, 0, + irq_name, oct); + if (ret) { + netdev_err(netdev, + "request_irq failed for %s; err=%d", + irq_name, ret); + goto non_ioq_irq_err; + } + } + + /* Request IRQs for Tx/Rx queues */ + for (j = 0; j < oct->num_oqs; j++) { + ioq_vector = oct->ioq_vector[j]; + msix_entry = &oct->msix_entries[j + num_non_ioq_msix]; + + snprintf(ioq_vector->name, sizeof(ioq_vector->name), + "%s-q%d", netdev->name, j); + ret = request_irq(msix_entry->vector, + octep_ioq_intr_handler, 0, + ioq_vector->name, ioq_vector); + if (ret) { + netdev_err(netdev, + "request_irq failed for Q-%d; err=%d", + j, ret); + goto ioq_irq_err; + } + + cpumask_set_cpu(j % num_online_cpus(), + &ioq_vector->affinity_mask); + irq_set_affinity_hint(msix_entry->vector, + &ioq_vector->affinity_mask); + } + + return 0; +ioq_irq_err: + while (j) { + --j; + ioq_vector = oct->ioq_vector[j]; + msix_entry = &oct->msix_entries[j + num_non_ioq_msix]; + + irq_set_affinity_hint(msix_entry->vector, NULL); + free_irq(msix_entry->vector, ioq_vector); + } +non_ioq_irq_err: + while (i) { + --i; + free_irq(oct->msix_entries[i].vector, oct); + } + kfree(oct->non_ioq_irq_names); + oct->non_ioq_irq_names = NULL; +alloc_err: + return -1; +} + +/** + * octep_free_irqs() - free all registered interrupts. + * + * @oct: Octeon device private data structure. + * + * Free all queue and non-queue interrupts of the Octeon device. + */ +static void octep_free_irqs(struct octep_device *oct) +{ + int i; + + /* First few MSI-X interrupts are non queue interrupts; free them */ + for (i = 0; i < CFG_GET_NON_IOQ_MSIX(oct->conf); i++) + free_irq(oct->msix_entries[i].vector, oct); + kfree(oct->non_ioq_irq_names); + + /* Free IRQs for Input/Output (Tx/Rx) queues */ + for (i = CFG_GET_NON_IOQ_MSIX(oct->conf); i < oct->num_irqs; i++) { + irq_set_affinity_hint(oct->msix_entries[i].vector, NULL); + free_irq(oct->msix_entries[i].vector, + oct->ioq_vector[i - CFG_GET_NON_IOQ_MSIX(oct->conf)]); + } + netdev_info(oct->netdev, "IRQs freed\n"); +} + +/** + * octep_setup_irqs() - setup interrupts for the Octeon device. + * + * @oct: Octeon device private data structure. + * + * Allocate data structures to hold per interrupt information, allocate/enable + * MSI-x interrupt and register interrupt handlers. + * + * Return: 0, on successful allocation and registration of all interrupts. + * -1, on any error. + */ +static int octep_setup_irqs(struct octep_device *oct) +{ + if (octep_alloc_ioq_vectors(oct)) + goto ioq_vector_err; + + if (octep_enable_msix_range(oct)) + goto enable_msix_err; + + if (octep_request_irqs(oct)) + goto request_irq_err; + + return 0; + +request_irq_err: + octep_disable_msix(oct); +enable_msix_err: + octep_free_ioq_vectors(oct); +ioq_vector_err: + return -1; +} + +/** + * octep_clean_irqs() - free all interrupts and its resources. + * + * @oct: Octeon device private data structure. + */ +static void octep_clean_irqs(struct octep_device *oct) +{ + octep_free_irqs(oct); + octep_disable_msix(oct); + octep_free_ioq_vectors(oct); +} + +/** + * octep_enable_ioq_irq() - Enable MSI-x interrupt of a Tx/Rx queue. + * + * @iq: Octeon Tx queue data structure. + * @oq: Octeon Rx queue data structure. + */ +static void octep_enable_ioq_irq(struct octep_iq *iq, struct octep_oq *oq) +{ + u32 pkts_pend = oq->pkts_pending; + + netdev_dbg(iq->netdev, "enabling intr for Q-%u\n", iq->q_no); + if (iq->pkts_processed) { + writel(iq->pkts_processed, iq->inst_cnt_reg); + iq->pkt_in_done -= iq->pkts_processed; + iq->pkts_processed = 0; + } + if (oq->last_pkt_count - pkts_pend) { + writel(oq->last_pkt_count - pkts_pend, oq->pkts_sent_reg); + oq->last_pkt_count = pkts_pend; + } + + /* Flush the previous wrties before writing to RESEND bit */ + wmb(); + writeq(1UL << OCTEP_OQ_INTR_RESEND_BIT, oq->pkts_sent_reg); + writeq(1UL << OCTEP_IQ_INTR_RESEND_BIT, iq->inst_cnt_reg); +} + +/** + * octep_napi_poll() - NAPI poll function for Tx/Rx. + * + * @napi: pointer to napi context. + * @budget: max number of packets to be processed in single invocation. + */ +static int octep_napi_poll(struct napi_struct *napi, int budget) +{ + struct octep_ioq_vector *ioq_vector = + container_of(napi, struct octep_ioq_vector, napi); + u32 tx_pending, rx_done; + + tx_pending = octep_iq_process_completions(ioq_vector->iq, budget); + rx_done = octep_oq_process_rx(ioq_vector->oq, budget); + + /* need more polling if tx completion processing is still pending or + * processed at least 'budget' number of rx packets. + */ + if (tx_pending || rx_done >= budget) + return budget; + + napi_complete(napi); + octep_enable_ioq_irq(ioq_vector->iq, ioq_vector->oq); + return rx_done; +} + +/** + * octep_napi_add() - Add NAPI poll for all Tx/Rx queues. + * + * @oct: Octeon device private data structure. + */ +static void octep_napi_add(struct octep_device *oct) +{ + int i; + + for (i = 0; i < oct->num_oqs; i++) { + netdev_dbg(oct->netdev, "Adding NAPI on Q-%d\n", i); + netif_napi_add(oct->netdev, &oct->ioq_vector[i]->napi, + octep_napi_poll); + oct->oq[i]->napi = &oct->ioq_vector[i]->napi; + } +} + +/** + * octep_napi_delete() - delete NAPI poll callback for all Tx/Rx queues. + * + * @oct: Octeon device private data structure. + */ +static void octep_napi_delete(struct octep_device *oct) +{ + int i; + + for (i = 0; i < oct->num_oqs; i++) { + netdev_dbg(oct->netdev, "Deleting NAPI on Q-%d\n", i); + netif_napi_del(&oct->ioq_vector[i]->napi); + oct->oq[i]->napi = NULL; + } +} + +/** + * octep_napi_enable() - enable NAPI for all Tx/Rx queues. + * + * @oct: Octeon device private data structure. + */ +static void octep_napi_enable(struct octep_device *oct) +{ + int i; + + for (i = 0; i < oct->num_oqs; i++) { + netdev_dbg(oct->netdev, "Enabling NAPI on Q-%d\n", i); + napi_enable(&oct->ioq_vector[i]->napi); + } +} + +/** + * octep_napi_disable() - disable NAPI for all Tx/Rx queues. + * + * @oct: Octeon device private data structure. + */ +static void octep_napi_disable(struct octep_device *oct) +{ + int i; + + for (i = 0; i < oct->num_oqs; i++) { + netdev_dbg(oct->netdev, "Disabling NAPI on Q-%d\n", i); + napi_disable(&oct->ioq_vector[i]->napi); + } +} + +static void octep_link_up(struct net_device *netdev) +{ + netif_carrier_on(netdev); + netif_tx_start_all_queues(netdev); +} + +/** + * octep_open() - start the octeon network device. + * + * @netdev: pointer to kernel network device. + * + * setup Tx/Rx queues, interrupts and enable hardware operation of Tx/Rx queues + * and interrupts.. + * + * Return: 0, on successfully setting up device and bring it up. + * -1, on any error. + */ +static int octep_open(struct net_device *netdev) +{ + struct octep_device *oct = netdev_priv(netdev); + int err, ret; + + netdev_info(netdev, "Starting netdev ...\n"); + netif_carrier_off(netdev); + + oct->hw_ops.reset_io_queues(oct); + + if (octep_setup_iqs(oct)) + goto setup_iq_err; + if (octep_setup_oqs(oct)) + goto setup_oq_err; + if (octep_setup_irqs(oct)) + goto setup_irq_err; + + err = netif_set_real_num_tx_queues(netdev, oct->num_oqs); + if (err) + goto set_queues_err; + err = netif_set_real_num_rx_queues(netdev, oct->num_iqs); + if (err) + goto set_queues_err; + + octep_napi_add(oct); + octep_napi_enable(oct); + + oct->link_info.admin_up = 1; + octep_set_rx_state(oct, true); + + ret = octep_get_link_status(oct); + if (!ret) + octep_set_link_status(oct, true); + + /* Enable the input and output queues for this Octeon device */ + oct->hw_ops.enable_io_queues(oct); + + /* Enable Octeon device interrupts */ + oct->hw_ops.enable_interrupts(oct); + + octep_oq_dbell_init(oct); + + ret = octep_get_link_status(oct); + if (ret > 0) + octep_link_up(netdev); + + return 0; + +set_queues_err: + octep_clean_irqs(oct); +setup_irq_err: + octep_free_oqs(oct); +setup_oq_err: + octep_free_iqs(oct); +setup_iq_err: + return -1; +} + +/** + * octep_stop() - stop the octeon network device. + * + * @netdev: pointer to kernel network device. + * + * stop the device Tx/Rx operations, bring down the link and + * free up all resources allocated for Tx/Rx queues and interrupts. + */ +static int octep_stop(struct net_device *netdev) +{ + struct octep_device *oct = netdev_priv(netdev); + + netdev_info(netdev, "Stopping the device ...\n"); + + /* Stop Tx from stack */ + netif_tx_stop_all_queues(netdev); + netif_carrier_off(netdev); + netif_tx_disable(netdev); + + octep_set_link_status(oct, false); + octep_set_rx_state(oct, false); + + oct->link_info.admin_up = 0; + oct->link_info.oper_up = 0; + + oct->hw_ops.disable_interrupts(oct); + octep_napi_disable(oct); + octep_napi_delete(oct); + + octep_clean_irqs(oct); + octep_clean_iqs(oct); + + oct->hw_ops.disable_io_queues(oct); + oct->hw_ops.reset_io_queues(oct); + octep_free_oqs(oct); + octep_free_iqs(oct); + netdev_info(netdev, "Device stopped !!\n"); + return 0; +} + +/** + * octep_iq_full_check() - check if a Tx queue is full. + * + * @iq: Octeon Tx queue data structure. + * + * Return: 0, if the Tx queue is not full. + * 1, if the Tx queue is full. + */ +static inline int octep_iq_full_check(struct octep_iq *iq) +{ + if (likely((iq->max_count - atomic_read(&iq->instr_pending)) >= + OCTEP_WAKE_QUEUE_THRESHOLD)) + return 0; + + /* Stop the queue if unable to send */ + netif_stop_subqueue(iq->netdev, iq->q_no); + + /* check again and restart the queue, in case NAPI has just freed + * enough Tx ring entries. + */ + if (unlikely((iq->max_count - atomic_read(&iq->instr_pending)) >= + OCTEP_WAKE_QUEUE_THRESHOLD)) { + netif_start_subqueue(iq->netdev, iq->q_no); + iq->stats.restart_cnt++; + return 0; + } + + return 1; +} + +/** + * octep_start_xmit() - Enqueue packet to Octoen hardware Tx Queue. + * + * @skb: packet skbuff pointer. + * @netdev: kernel network device. + * + * Return: NETDEV_TX_BUSY, if Tx Queue is full. + * NETDEV_TX_OK, if successfully enqueued to hardware Tx queue. + */ +static netdev_tx_t octep_start_xmit(struct sk_buff *skb, + struct net_device *netdev) +{ + struct octep_device *oct = netdev_priv(netdev); + struct octep_tx_sglist_desc *sglist; + struct octep_tx_buffer *tx_buffer; + struct octep_tx_desc_hw *hw_desc; + struct skb_shared_info *shinfo; + struct octep_instr_hdr *ih; + struct octep_iq *iq; + skb_frag_t *frag; + u16 nr_frags, si; + u16 q_no, wi; + + q_no = skb_get_queue_mapping(skb); + if (q_no >= oct->num_iqs) { + netdev_err(netdev, "Invalid Tx skb->queue_mapping=%d\n", q_no); + q_no = q_no % oct->num_iqs; + } + + iq = oct->iq[q_no]; + if (octep_iq_full_check(iq)) { + iq->stats.tx_busy++; + return NETDEV_TX_BUSY; + } + + shinfo = skb_shinfo(skb); + nr_frags = shinfo->nr_frags; + + wi = iq->host_write_index; + hw_desc = &iq->desc_ring[wi]; + hw_desc->ih64 = 0; + + tx_buffer = iq->buff_info + wi; + tx_buffer->skb = skb; + + ih = &hw_desc->ih; + ih->tlen = skb->len; + ih->pkind = oct->pkind; + + if (!nr_frags) { + tx_buffer->gather = 0; + tx_buffer->dma = dma_map_single(iq->dev, skb->data, + skb->len, DMA_TO_DEVICE); + if (dma_mapping_error(iq->dev, tx_buffer->dma)) + goto dma_map_err; + hw_desc->dptr = tx_buffer->dma; + } else { + /* Scatter/Gather */ + dma_addr_t dma; + u16 len; + + sglist = tx_buffer->sglist; + + ih->gsz = nr_frags + 1; + ih->gather = 1; + tx_buffer->gather = 1; + + len = skb_headlen(skb); + dma = dma_map_single(iq->dev, skb->data, len, DMA_TO_DEVICE); + if (dma_mapping_error(iq->dev, dma)) + goto dma_map_err; + + dma_sync_single_for_cpu(iq->dev, tx_buffer->sglist_dma, + OCTEP_SGLIST_SIZE_PER_PKT, + DMA_TO_DEVICE); + memset(sglist, 0, OCTEP_SGLIST_SIZE_PER_PKT); + sglist[0].len[3] = len; + sglist[0].dma_ptr[0] = dma; + + si = 1; /* entry 0 is main skb, mapped above */ + frag = &shinfo->frags[0]; + while (nr_frags--) { + len = skb_frag_size(frag); + dma = skb_frag_dma_map(iq->dev, frag, 0, + len, DMA_TO_DEVICE); + if (dma_mapping_error(iq->dev, dma)) + goto dma_map_sg_err; + + sglist[si >> 2].len[3 - (si & 3)] = len; + sglist[si >> 2].dma_ptr[si & 3] = dma; + + frag++; + si++; + } + dma_sync_single_for_device(iq->dev, tx_buffer->sglist_dma, + OCTEP_SGLIST_SIZE_PER_PKT, + DMA_TO_DEVICE); + + hw_desc->dptr = tx_buffer->sglist_dma; + } + + netdev_tx_sent_queue(iq->netdev_q, skb->len); + skb_tx_timestamp(skb); + atomic_inc(&iq->instr_pending); + wi++; + if (wi == iq->max_count) + wi = 0; + iq->host_write_index = wi; + /* Flush the hw descriptor before writing to doorbell */ + wmb(); + + /* Ring Doorbell to notify the NIC there is a new packet */ + writel(1, iq->doorbell_reg); + iq->stats.instr_posted++; + return NETDEV_TX_OK; + +dma_map_sg_err: + if (si > 0) { + dma_unmap_single(iq->dev, sglist[0].dma_ptr[0], + sglist[0].len[3], DMA_TO_DEVICE); + sglist[0].len[3] = 0; + } + while (si > 1) { + dma_unmap_page(iq->dev, sglist[si >> 2].dma_ptr[si & 3], + sglist[si >> 2].len[3 - (si & 3)], DMA_TO_DEVICE); + sglist[si >> 2].len[3 - (si & 3)] = 0; + si--; + } + tx_buffer->gather = 0; +dma_map_err: + dev_kfree_skb_any(skb); + return NETDEV_TX_OK; +} + +/** + * octep_get_stats64() - Get Octeon network device statistics. + * + * @netdev: kernel network device. + * @stats: pointer to stats structure to be filled in. + */ +static void octep_get_stats64(struct net_device *netdev, + struct rtnl_link_stats64 *stats) +{ + u64 tx_packets, tx_bytes, rx_packets, rx_bytes; + struct octep_device *oct = netdev_priv(netdev); + int q; + + octep_get_if_stats(oct); + tx_packets = 0; + tx_bytes = 0; + rx_packets = 0; + rx_bytes = 0; + for (q = 0; q < oct->num_oqs; q++) { + struct octep_iq *iq = oct->iq[q]; + struct octep_oq *oq = oct->oq[q]; + + tx_packets += iq->stats.instr_completed; + tx_bytes += iq->stats.bytes_sent; + rx_packets += oq->stats.packets; + rx_bytes += oq->stats.bytes; + } + stats->tx_packets = tx_packets; + stats->tx_bytes = tx_bytes; + stats->rx_packets = rx_packets; + stats->rx_bytes = rx_bytes; + stats->multicast = oct->iface_rx_stats.mcast_pkts; + stats->rx_errors = oct->iface_rx_stats.err_pkts; + stats->collisions = oct->iface_tx_stats.xscol; + stats->tx_fifo_errors = oct->iface_tx_stats.undflw; +} + +/** + * octep_tx_timeout_task - work queue task to Handle Tx queue timeout. + * + * @work: pointer to Tx queue timeout work_struct + * + * Stop and start the device so that it frees up all queue resources + * and restarts the queues, that potentially clears a Tx queue timeout + * condition. + **/ +static void octep_tx_timeout_task(struct work_struct *work) +{ + struct octep_device *oct = container_of(work, struct octep_device, + tx_timeout_task); + struct net_device *netdev = oct->netdev; + + rtnl_lock(); + if (netif_running(netdev)) { + octep_stop(netdev); + octep_open(netdev); + } + rtnl_unlock(); +} + +/** + * octep_tx_timeout() - Handle Tx Queue timeout. + * + * @netdev: pointer to kernel network device. + * @txqueue: Timed out Tx queue number. + * + * Schedule a work to handle Tx queue timeout. + */ +static void octep_tx_timeout(struct net_device *netdev, unsigned int txqueue) +{ + struct octep_device *oct = netdev_priv(netdev); + + queue_work(octep_wq, &oct->tx_timeout_task); +} + +static int octep_set_mac(struct net_device *netdev, void *p) +{ + struct octep_device *oct = netdev_priv(netdev); + struct sockaddr *addr = (struct sockaddr *)p; + int err; + + if (!is_valid_ether_addr(addr->sa_data)) + return -EADDRNOTAVAIL; + + err = octep_set_mac_addr(oct, addr->sa_data); + if (err) + return err; + + memcpy(oct->mac_addr, addr->sa_data, ETH_ALEN); + eth_hw_addr_set(netdev, addr->sa_data); + + return 0; +} + +static int octep_change_mtu(struct net_device *netdev, int new_mtu) +{ + struct octep_device *oct = netdev_priv(netdev); + struct octep_iface_link_info *link_info; + int err = 0; + + link_info = &oct->link_info; + if (link_info->mtu == new_mtu) + return 0; + + err = octep_set_mtu(oct, new_mtu); + if (!err) { + oct->link_info.mtu = new_mtu; + netdev->mtu = new_mtu; + } + + return err; +} + +static const struct net_device_ops octep_netdev_ops = { + .ndo_open = octep_open, + .ndo_stop = octep_stop, + .ndo_start_xmit = octep_start_xmit, + .ndo_get_stats64 = octep_get_stats64, + .ndo_tx_timeout = octep_tx_timeout, + .ndo_set_mac_address = octep_set_mac, + .ndo_change_mtu = octep_change_mtu, +}; + +/** + * octep_ctrl_mbox_task - work queue task to handle ctrl mbox messages. + * + * @work: pointer to ctrl mbox work_struct + * + * Poll ctrl mbox message queue and handle control messages from firmware. + **/ +static void octep_ctrl_mbox_task(struct work_struct *work) +{ + struct octep_device *oct = container_of(work, struct octep_device, + ctrl_mbox_task); + struct net_device *netdev = oct->netdev; + struct octep_ctrl_net_f2h_req req = {}; + struct octep_ctrl_mbox_msg msg; + int ret = 0; + + msg.msg = &req; + while (true) { + ret = octep_ctrl_mbox_recv(&oct->ctrl_mbox, &msg); + if (ret) + break; + + switch (req.hdr.cmd) { + case OCTEP_CTRL_NET_F2H_CMD_LINK_STATUS: + if (netif_running(netdev)) { + if (req.link.state) { + dev_info(&oct->pdev->dev, "netif_carrier_on\n"); + netif_carrier_on(netdev); + } else { + dev_info(&oct->pdev->dev, "netif_carrier_off\n"); + netif_carrier_off(netdev); + } + } + break; + default: + pr_info("Unknown mbox req : %u\n", req.hdr.cmd); + break; + } + } +} + +/** + * octep_device_setup() - Setup Octeon Device. + * + * @oct: Octeon device private data structure. + * + * Setup Octeon device hardware operations, configuration, etc ... + */ +int octep_device_setup(struct octep_device *oct) +{ + struct octep_ctrl_mbox *ctrl_mbox; + struct pci_dev *pdev = oct->pdev; + int i, ret; + + /* allocate memory for oct->conf */ + oct->conf = kzalloc(sizeof(*oct->conf), GFP_KERNEL); + if (!oct->conf) + return -ENOMEM; + + /* Map BAR regions */ + for (i = 0; i < OCTEP_MMIO_REGIONS; i++) { + oct->mmio[i].hw_addr = + ioremap(pci_resource_start(oct->pdev, i * 2), + pci_resource_len(oct->pdev, i * 2)); + if (!oct->mmio[i].hw_addr) + goto unmap_prev; + + oct->mmio[i].mapped = 1; + } + + oct->chip_id = pdev->device; + oct->rev_id = pdev->revision; + dev_info(&pdev->dev, "chip_id = 0x%x\n", pdev->device); + + switch (oct->chip_id) { + case OCTEP_PCI_DEVICE_ID_CN93_PF: + dev_info(&pdev->dev, + "Setting up OCTEON CN93XX PF PASS%d.%d\n", + OCTEP_MAJOR_REV(oct), OCTEP_MINOR_REV(oct)); + octep_device_setup_cn93_pf(oct); + break; + default: + dev_err(&pdev->dev, + "%s: unsupported device\n", __func__); + goto unsupported_dev; + } + + oct->pkind = CFG_GET_IQ_PKIND(oct->conf); + + /* Initialize control mbox */ + ctrl_mbox = &oct->ctrl_mbox; + ctrl_mbox->barmem = CFG_GET_CTRL_MBOX_MEM_ADDR(oct->conf); + ret = octep_ctrl_mbox_init(ctrl_mbox); + if (ret) { + dev_err(&pdev->dev, "Failed to initialize control mbox\n"); + goto unsupported_dev; + } + oct->ctrl_mbox_ifstats_offset = OCTEP_CTRL_MBOX_SZ(ctrl_mbox->h2fq.elem_sz, + ctrl_mbox->h2fq.elem_cnt, + ctrl_mbox->f2hq.elem_sz, + ctrl_mbox->f2hq.elem_cnt); + + return 0; + +unsupported_dev: + i = OCTEP_MMIO_REGIONS; +unmap_prev: + while (i--) + iounmap(oct->mmio[i].hw_addr); + + kfree(oct->conf); + return -1; +} + +/** + * octep_device_cleanup() - Cleanup Octeon Device. + * + * @oct: Octeon device private data structure. + * + * Cleanup Octeon device allocated resources. + */ +static void octep_device_cleanup(struct octep_device *oct) +{ + int i; + + dev_info(&oct->pdev->dev, "Cleaning up Octeon Device ...\n"); + + for (i = 0; i < OCTEP_MAX_VF; i++) { + vfree(oct->mbox[i]); + oct->mbox[i] = NULL; + } + + octep_ctrl_mbox_uninit(&oct->ctrl_mbox); + + oct->hw_ops.soft_reset(oct); + for (i = 0; i < OCTEP_MMIO_REGIONS; i++) { + if (oct->mmio[i].mapped) + iounmap(oct->mmio[i].hw_addr); + } + + kfree(oct->conf); + oct->conf = NULL; +} + +/** + * octep_probe() - Octeon PCI device probe handler. + * + * @pdev: PCI device structure. + * @ent: entry in Octeon PCI device ID table. + * + * Initializes and enables the Octeon PCI device for network operations. + * Initializes Octeon private data structure and registers a network device. + */ +static int octep_probe(struct pci_dev *pdev, const struct pci_device_id *ent) +{ + struct octep_device *octep_dev = NULL; + struct net_device *netdev; + int err; + + err = pci_enable_device(pdev); + if (err) { + dev_err(&pdev->dev, "Failed to enable PCI device\n"); + return err; + } + + err = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64)); + if (err) { + dev_err(&pdev->dev, "Failed to set DMA mask !!\n"); + goto err_dma_mask; + } + + err = pci_request_mem_regions(pdev, OCTEP_DRV_NAME); + if (err) { + dev_err(&pdev->dev, "Failed to map PCI memory regions\n"); + goto err_pci_regions; + } + + pci_enable_pcie_error_reporting(pdev); + pci_set_master(pdev); + + netdev = alloc_etherdev_mq(sizeof(struct octep_device), + OCTEP_MAX_QUEUES); + if (!netdev) { + dev_err(&pdev->dev, "Failed to allocate netdev\n"); + err = -ENOMEM; + goto err_alloc_netdev; + } + SET_NETDEV_DEV(netdev, &pdev->dev); + + octep_dev = netdev_priv(netdev); + octep_dev->netdev = netdev; + octep_dev->pdev = pdev; + octep_dev->dev = &pdev->dev; + pci_set_drvdata(pdev, octep_dev); + + err = octep_device_setup(octep_dev); + if (err) { + dev_err(&pdev->dev, "Device setup failed\n"); + goto err_octep_config; + } + INIT_WORK(&octep_dev->tx_timeout_task, octep_tx_timeout_task); + INIT_WORK(&octep_dev->ctrl_mbox_task, octep_ctrl_mbox_task); + + netdev->netdev_ops = &octep_netdev_ops; + octep_set_ethtool_ops(netdev); + netif_carrier_off(netdev); + + netdev->hw_features = NETIF_F_SG; + netdev->features |= netdev->hw_features; + netdev->min_mtu = OCTEP_MIN_MTU; + netdev->max_mtu = OCTEP_MAX_MTU; + netdev->mtu = OCTEP_DEFAULT_MTU; + + err = octep_get_mac_addr(octep_dev, octep_dev->mac_addr); + if (err) { + dev_err(&pdev->dev, "Failed to get mac address\n"); + goto register_dev_err; + } + eth_hw_addr_set(netdev, octep_dev->mac_addr); + + err = register_netdev(netdev); + if (err) { + dev_err(&pdev->dev, "Failed to register netdev\n"); + goto register_dev_err; + } + dev_info(&pdev->dev, "Device probe successful\n"); + return 0; + +register_dev_err: + octep_device_cleanup(octep_dev); +err_octep_config: + free_netdev(netdev); +err_alloc_netdev: + pci_disable_pcie_error_reporting(pdev); + pci_release_mem_regions(pdev); +err_pci_regions: +err_dma_mask: + pci_disable_device(pdev); + return err; +} + +/** + * octep_remove() - Remove Octeon PCI device from driver control. + * + * @pdev: PCI device structure of the Octeon device. + * + * Cleanup all resources allocated for the Octeon device. + * Unregister from network device and disable the PCI device. + */ +static void octep_remove(struct pci_dev *pdev) +{ + struct octep_device *oct = pci_get_drvdata(pdev); + struct net_device *netdev; + + if (!oct) + return; + + cancel_work_sync(&oct->ctrl_mbox_task); + netdev = oct->netdev; + if (netdev->reg_state == NETREG_REGISTERED) + unregister_netdev(netdev); + + cancel_work_sync(&oct->tx_timeout_task); + octep_device_cleanup(oct); + pci_release_mem_regions(pdev); + free_netdev(netdev); + pci_disable_pcie_error_reporting(pdev); + pci_disable_device(pdev); +} + +static struct pci_driver octep_driver = { + .name = OCTEP_DRV_NAME, + .id_table = octep_pci_id_tbl, + .probe = octep_probe, + .remove = octep_remove, +}; + +/** + * octep_init_module() - Module initialiation. + * + * create common resource for the driver and register PCI driver. + */ +static int __init octep_init_module(void) +{ + int ret; + + pr_info("%s: Loading %s ...\n", OCTEP_DRV_NAME, OCTEP_DRV_STRING); + + /* work queue for all deferred tasks */ + octep_wq = create_singlethread_workqueue(OCTEP_DRV_NAME); + if (!octep_wq) { + pr_err("%s: Failed to create common workqueue\n", + OCTEP_DRV_NAME); + return -ENOMEM; + } + + ret = pci_register_driver(&octep_driver); + if (ret < 0) { + pr_err("%s: Failed to register PCI driver; err=%d\n", + OCTEP_DRV_NAME, ret); + destroy_workqueue(octep_wq); + return ret; + } + + pr_info("%s: Loaded successfully !\n", OCTEP_DRV_NAME); + + return ret; +} + +/** + * octep_exit_module() - Module exit routine. + * + * unregister the driver with PCI subsystem and cleanup common resources. + */ +static void __exit octep_exit_module(void) +{ + pr_info("%s: Unloading ...\n", OCTEP_DRV_NAME); + + pci_unregister_driver(&octep_driver); + destroy_workqueue(octep_wq); + + pr_info("%s: Unloading complete\n", OCTEP_DRV_NAME); +} + +module_init(octep_init_module); +module_exit(octep_exit_module); diff --git a/drivers/net/ethernet/marvell/octeon_ep/octep_main.h b/drivers/net/ethernet/marvell/octeon_ep/octep_main.h new file mode 100644 index 000000000..025626a61 --- /dev/null +++ b/drivers/net/ethernet/marvell/octeon_ep/octep_main.h @@ -0,0 +1,357 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* Marvell Octeon EP (EndPoint) Ethernet Driver + * + * Copyright (C) 2020 Marvell. + * + */ + +#ifndef _OCTEP_MAIN_H_ +#define _OCTEP_MAIN_H_ + +#include "octep_tx.h" +#include "octep_rx.h" +#include "octep_ctrl_mbox.h" + +#define OCTEP_DRV_NAME "octeon_ep" +#define OCTEP_DRV_STRING "Marvell Octeon EndPoint NIC Driver" + +#define OCTEP_PCIID_CN93_PF 0xB200177d +#define OCTEP_PCIID_CN93_VF 0xB203177d + +#define OCTEP_PCI_DEVICE_ID_CN93_PF 0xB200 +#define OCTEP_PCI_DEVICE_ID_CN93_VF 0xB203 + +#define OCTEP_MAX_QUEUES 63 +#define OCTEP_MAX_IQ OCTEP_MAX_QUEUES +#define OCTEP_MAX_OQ OCTEP_MAX_QUEUES +#define OCTEP_MAX_VF 64 + +#define OCTEP_MAX_MSIX_VECTORS OCTEP_MAX_OQ + +/* Flags to disable and enable Interrupts */ +#define OCTEP_INPUT_INTR (1) +#define OCTEP_OUTPUT_INTR (2) +#define OCTEP_MBOX_INTR (4) +#define OCTEP_ALL_INTR 0xff + +#define OCTEP_IQ_INTR_RESEND_BIT 59 +#define OCTEP_OQ_INTR_RESEND_BIT 59 + +#define OCTEP_MMIO_REGIONS 3 +/* PCI address space mapping information. + * Each of the 3 address spaces given by BAR0, BAR2 and BAR4 of + * Octeon gets mapped to different physical address spaces in + * the kernel. + */ +struct octep_mmio { + /* The physical address to which the PCI address space is mapped. */ + u8 __iomem *hw_addr; + + /* Flag indicating the mapping was successful. */ + int mapped; +}; + +struct octep_pci_win_regs { + u8 __iomem *pci_win_wr_addr; + u8 __iomem *pci_win_rd_addr; + u8 __iomem *pci_win_wr_data; + u8 __iomem *pci_win_rd_data; +}; + +struct octep_hw_ops { + void (*setup_iq_regs)(struct octep_device *oct, int q); + void (*setup_oq_regs)(struct octep_device *oct, int q); + void (*setup_mbox_regs)(struct octep_device *oct, int mbox); + + irqreturn_t (*non_ioq_intr_handler)(void *ioq_vector); + irqreturn_t (*ioq_intr_handler)(void *ioq_vector); + int (*soft_reset)(struct octep_device *oct); + void (*reinit_regs)(struct octep_device *oct); + u32 (*update_iq_read_idx)(struct octep_iq *iq); + + void (*enable_interrupts)(struct octep_device *oct); + void (*disable_interrupts)(struct octep_device *oct); + + void (*enable_io_queues)(struct octep_device *oct); + void (*disable_io_queues)(struct octep_device *oct); + void (*enable_iq)(struct octep_device *oct, int q); + void (*disable_iq)(struct octep_device *oct, int q); + void (*enable_oq)(struct octep_device *oct, int q); + void (*disable_oq)(struct octep_device *oct, int q); + void (*reset_io_queues)(struct octep_device *oct); + void (*dump_registers)(struct octep_device *oct); +}; + +/* Octeon mailbox data */ +struct octep_mbox_data { + u32 cmd; + u32 total_len; + u32 recv_len; + u32 rsvd; + u64 *data; +}; + +/* Octeon device mailbox */ +struct octep_mbox { + /* A spinlock to protect access to this q_mbox. */ + spinlock_t lock; + + u32 q_no; + u32 state; + + /* SLI_MAC_PF_MBOX_INT for PF, SLI_PKT_MBOX_INT for VF. */ + u8 __iomem *mbox_int_reg; + + /* SLI_PKT_PF_VF_MBOX_SIG(0) for PF, + * SLI_PKT_PF_VF_MBOX_SIG(1) for VF. + */ + u8 __iomem *mbox_write_reg; + + /* SLI_PKT_PF_VF_MBOX_SIG(1) for PF, + * SLI_PKT_PF_VF_MBOX_SIG(0) for VF. + */ + u8 __iomem *mbox_read_reg; + + struct octep_mbox_data mbox_data; +}; + +/* Tx/Rx queue vector per interrupt. */ +struct octep_ioq_vector { + char name[OCTEP_MSIX_NAME_SIZE]; + struct napi_struct napi; + struct octep_device *octep_dev; + struct octep_iq *iq; + struct octep_oq *oq; + cpumask_t affinity_mask; +}; + +/* Octeon hardware/firmware offload capability flags. */ +#define OCTEP_CAP_TX_CHECKSUM BIT(0) +#define OCTEP_CAP_RX_CHECKSUM BIT(1) +#define OCTEP_CAP_TSO BIT(2) + +/* Link modes */ +enum octep_link_mode_bit_indices { + OCTEP_LINK_MODE_10GBASE_T = 0, + OCTEP_LINK_MODE_10GBASE_R, + OCTEP_LINK_MODE_10GBASE_CR, + OCTEP_LINK_MODE_10GBASE_KR, + OCTEP_LINK_MODE_10GBASE_LR, + OCTEP_LINK_MODE_10GBASE_SR, + OCTEP_LINK_MODE_25GBASE_CR, + OCTEP_LINK_MODE_25GBASE_KR, + OCTEP_LINK_MODE_25GBASE_SR, + OCTEP_LINK_MODE_40GBASE_CR4, + OCTEP_LINK_MODE_40GBASE_KR4, + OCTEP_LINK_MODE_40GBASE_LR4, + OCTEP_LINK_MODE_40GBASE_SR4, + OCTEP_LINK_MODE_50GBASE_CR2, + OCTEP_LINK_MODE_50GBASE_KR2, + OCTEP_LINK_MODE_50GBASE_SR2, + OCTEP_LINK_MODE_50GBASE_CR, + OCTEP_LINK_MODE_50GBASE_KR, + OCTEP_LINK_MODE_50GBASE_LR, + OCTEP_LINK_MODE_50GBASE_SR, + OCTEP_LINK_MODE_100GBASE_CR4, + OCTEP_LINK_MODE_100GBASE_KR4, + OCTEP_LINK_MODE_100GBASE_LR4, + OCTEP_LINK_MODE_100GBASE_SR4, + OCTEP_LINK_MODE_NBITS +}; + +/* Hardware interface link state information. */ +struct octep_iface_link_info { + /* Bitmap of Supported link speeds/modes. */ + u64 supported_modes; + + /* Bitmap of Advertised link speeds/modes. */ + u64 advertised_modes; + + /* Negotiated link speed in Mbps. */ + u32 speed; + + /* MTU */ + u16 mtu; + + /* Autonegotation state. */ +#define OCTEP_LINK_MODE_AUTONEG_SUPPORTED BIT(0) +#define OCTEP_LINK_MODE_AUTONEG_ADVERTISED BIT(1) + u8 autoneg; + + /* Pause frames setting. */ +#define OCTEP_LINK_MODE_PAUSE_SUPPORTED BIT(0) +#define OCTEP_LINK_MODE_PAUSE_ADVERTISED BIT(1) + u8 pause; + + /* Admin state of the link (ifconfig <iface> up/down */ + u8 admin_up; + + /* Operational state of the link: physical link is up down */ + u8 oper_up; +}; + +/* The Octeon device specific private data structure. + * Each Octeon device has this structure to represent all its components. + */ +struct octep_device { + struct octep_config *conf; + + /* Octeon Chip type. */ + u16 chip_id; + u16 rev_id; + + /* Device capabilities enabled */ + u64 caps_enabled; + /* Device capabilities supported */ + u64 caps_supported; + + /* Pointer to basic Linux device */ + struct device *dev; + /* Linux PCI device pointer */ + struct pci_dev *pdev; + /* Netdev corresponding to the Octeon device */ + struct net_device *netdev; + + /* memory mapped io range */ + struct octep_mmio mmio[OCTEP_MMIO_REGIONS]; + + /* MAC address */ + u8 mac_addr[ETH_ALEN]; + + /* Tx queues (IQ: Instruction Queue) */ + u16 num_iqs; + /* pkind value to be used in every Tx hardware descriptor */ + u8 pkind; + /* Pointers to Octeon Tx queues */ + struct octep_iq *iq[OCTEP_MAX_IQ]; + + /* Rx queues (OQ: Output Queue) */ + u16 num_oqs; + /* Pointers to Octeon Rx queues */ + struct octep_oq *oq[OCTEP_MAX_OQ]; + + /* Hardware port number of the PCIe interface */ + u16 pcie_port; + + /* PCI Window registers to access some hardware CSRs */ + struct octep_pci_win_regs pci_win_regs; + /* Hardware operations */ + struct octep_hw_ops hw_ops; + + /* IRQ info */ + u16 num_irqs; + u16 num_non_ioq_irqs; + char *non_ioq_irq_names; + struct msix_entry *msix_entries; + /* IOq information of it's corresponding MSI-X interrupt. */ + struct octep_ioq_vector *ioq_vector[OCTEP_MAX_QUEUES]; + + /* Hardware Interface Tx statistics */ + struct octep_iface_tx_stats iface_tx_stats; + /* Hardware Interface Rx statistics */ + struct octep_iface_rx_stats iface_rx_stats; + + /* Hardware Interface Link info like supported modes, aneg support */ + struct octep_iface_link_info link_info; + + /* Mailbox to talk to VFs */ + struct octep_mbox *mbox[OCTEP_MAX_VF]; + + /* Work entry to handle Tx timeout */ + struct work_struct tx_timeout_task; + + /* control mbox over pf */ + struct octep_ctrl_mbox ctrl_mbox; + + /* offset for iface stats */ + u32 ctrl_mbox_ifstats_offset; + + /* Work entry to handle ctrl mbox interrupt */ + struct work_struct ctrl_mbox_task; + +}; + +static inline u16 OCTEP_MAJOR_REV(struct octep_device *oct) +{ + u16 rev = (oct->rev_id & 0xC) >> 2; + + return (rev == 0) ? 1 : rev; +} + +static inline u16 OCTEP_MINOR_REV(struct octep_device *oct) +{ + return (oct->rev_id & 0x3); +} + +/* Octeon CSR read/write access APIs */ +#define octep_write_csr(octep_dev, reg_off, value) \ + writel(value, (octep_dev)->mmio[0].hw_addr + (reg_off)) + +#define octep_write_csr64(octep_dev, reg_off, val64) \ + writeq(val64, (octep_dev)->mmio[0].hw_addr + (reg_off)) + +#define octep_read_csr(octep_dev, reg_off) \ + readl((octep_dev)->mmio[0].hw_addr + (reg_off)) + +#define octep_read_csr64(octep_dev, reg_off) \ + readq((octep_dev)->mmio[0].hw_addr + (reg_off)) + +/* Read windowed register. + * @param oct - pointer to the Octeon device. + * @param addr - Address of the register to read. + * + * This routine is called to read from the indirectly accessed + * Octeon registers that are visible through a PCI BAR0 mapped window + * register. + * @return - 64 bit value read from the register. + */ +static inline u64 +OCTEP_PCI_WIN_READ(struct octep_device *oct, u64 addr) +{ + u64 val64; + + addr |= 1ull << 53; /* read 8 bytes */ + writeq(addr, oct->pci_win_regs.pci_win_rd_addr); + val64 = readq(oct->pci_win_regs.pci_win_rd_data); + + dev_dbg(&oct->pdev->dev, + "%s: reg: 0x%016llx val: 0x%016llx\n", __func__, addr, val64); + + return val64; +} + +/* Write windowed register. + * @param oct - pointer to the Octeon device. + * @param addr - Address of the register to write + * @param val - Value to write + * + * This routine is called to write to the indirectly accessed + * Octeon registers that are visible through a PCI BAR0 mapped window + * register. + * @return Nothing. + */ +static inline void +OCTEP_PCI_WIN_WRITE(struct octep_device *oct, u64 addr, u64 val) +{ + writeq(addr, oct->pci_win_regs.pci_win_wr_addr); + writeq(val, oct->pci_win_regs.pci_win_wr_data); + + dev_dbg(&oct->pdev->dev, + "%s: reg: 0x%016llx val: 0x%016llx\n", __func__, addr, val); +} + +extern struct workqueue_struct *octep_wq; + +int octep_device_setup(struct octep_device *oct); +int octep_setup_iqs(struct octep_device *oct); +void octep_free_iqs(struct octep_device *oct); +void octep_clean_iqs(struct octep_device *oct); +int octep_setup_oqs(struct octep_device *oct); +void octep_free_oqs(struct octep_device *oct); +void octep_oq_dbell_init(struct octep_device *oct); +void octep_device_setup_cn93_pf(struct octep_device *oct); +int octep_iq_process_completions(struct octep_iq *iq, u16 budget); +int octep_oq_process_rx(struct octep_oq *oq, int budget); +void octep_set_ethtool_ops(struct net_device *netdev); + +#endif /* _OCTEP_MAIN_H_ */ diff --git a/drivers/net/ethernet/marvell/octeon_ep/octep_regs_cn9k_pf.h b/drivers/net/ethernet/marvell/octeon_ep/octep_regs_cn9k_pf.h new file mode 100644 index 000000000..3d5d39a52 --- /dev/null +++ b/drivers/net/ethernet/marvell/octeon_ep/octep_regs_cn9k_pf.h @@ -0,0 +1,367 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* Marvell Octeon EP (EndPoint) Ethernet Driver + * + * Copyright (C) 2020 Marvell. + * + */ + +#ifndef _OCTEP_REGS_CN9K_PF_H_ +#define _OCTEP_REGS_CN9K_PF_H_ + +/* ############################ RST ######################### */ +#define CN93_RST_BOOT 0x000087E006001600ULL +#define CN93_RST_CORE_DOMAIN_W1S 0x000087E006001820ULL +#define CN93_RST_CORE_DOMAIN_W1C 0x000087E006001828ULL + +#define CN93_CONFIG_XPANSION_BAR 0x38 +#define CN93_CONFIG_PCIE_CAP 0x70 +#define CN93_CONFIG_PCIE_DEVCAP 0x74 +#define CN93_CONFIG_PCIE_DEVCTL 0x78 +#define CN93_CONFIG_PCIE_LINKCAP 0x7C +#define CN93_CONFIG_PCIE_LINKCTL 0x80 +#define CN93_CONFIG_PCIE_SLOTCAP 0x84 +#define CN93_CONFIG_PCIE_SLOTCTL 0x88 + +#define CN93_PCIE_SRIOV_FDL 0x188 /* 0x98 */ +#define CN93_PCIE_SRIOV_FDL_BIT_POS 0x10 +#define CN93_PCIE_SRIOV_FDL_MASK 0xFF + +#define CN93_CONFIG_PCIE_FLTMSK 0x720 + +/* ################# Offsets of RING, EPF, MAC ######################### */ +#define CN93_RING_OFFSET (0x1ULL << 17) +#define CN93_EPF_OFFSET (0x1ULL << 25) +#define CN93_MAC_OFFSET (0x1ULL << 4) +#define CN93_BIT_ARRAY_OFFSET (0x1ULL << 4) +#define CN93_EPVF_RING_OFFSET (0x1ULL << 4) + +/* ################# Scratch Registers ######################### */ +#define CN93_SDP_EPF_SCRATCH 0x205E0 + +/* ################# Window Registers ######################### */ +#define CN93_SDP_WIN_WR_ADDR64 0x20000 +#define CN93_SDP_WIN_RD_ADDR64 0x20010 +#define CN93_SDP_WIN_WR_DATA64 0x20020 +#define CN93_SDP_WIN_WR_MASK_REG 0x20030 +#define CN93_SDP_WIN_RD_DATA64 0x20040 + +#define CN93_SDP_MAC_NUMBER 0x2C100 + +/* ################# Global Previliged registers ######################### */ +#define CN93_SDP_EPF_RINFO 0x205F0 + +#define CN93_SDP_EPF_RINFO_SRN(val) ((val) & 0xFF) +#define CN93_SDP_EPF_RINFO_RPVF(val) (((val) >> 32) & 0xF) +#define CN93_SDP_EPF_RINFO_NVFS(val) (((val) >> 48) & 0xFF) + +/* SDP Function select */ +#define CN93_SDP_FUNC_SEL_EPF_BIT_POS 8 +#define CN93_SDP_FUNC_SEL_FUNC_BIT_POS 0 + +/* ##### RING IN (Into device from PCI: Tx Ring) REGISTERS #### */ +#define CN93_SDP_R_IN_CONTROL_START 0x10000 +#define CN93_SDP_R_IN_ENABLE_START 0x10010 +#define CN93_SDP_R_IN_INSTR_BADDR_START 0x10020 +#define CN93_SDP_R_IN_INSTR_RSIZE_START 0x10030 +#define CN93_SDP_R_IN_INSTR_DBELL_START 0x10040 +#define CN93_SDP_R_IN_CNTS_START 0x10050 +#define CN93_SDP_R_IN_INT_LEVELS_START 0x10060 +#define CN93_SDP_R_IN_PKT_CNT_START 0x10080 +#define CN93_SDP_R_IN_BYTE_CNT_START 0x10090 + +#define CN93_SDP_R_IN_CONTROL(ring) \ + (CN93_SDP_R_IN_CONTROL_START + ((ring) * CN93_RING_OFFSET)) + +#define CN93_SDP_R_IN_ENABLE(ring) \ + (CN93_SDP_R_IN_ENABLE_START + ((ring) * CN93_RING_OFFSET)) + +#define CN93_SDP_R_IN_INSTR_BADDR(ring) \ + (CN93_SDP_R_IN_INSTR_BADDR_START + ((ring) * CN93_RING_OFFSET)) + +#define CN93_SDP_R_IN_INSTR_RSIZE(ring) \ + (CN93_SDP_R_IN_INSTR_RSIZE_START + ((ring) * CN93_RING_OFFSET)) + +#define CN93_SDP_R_IN_INSTR_DBELL(ring) \ + (CN93_SDP_R_IN_INSTR_DBELL_START + ((ring) * CN93_RING_OFFSET)) + +#define CN93_SDP_R_IN_CNTS(ring) \ + (CN93_SDP_R_IN_CNTS_START + ((ring) * CN93_RING_OFFSET)) + +#define CN93_SDP_R_IN_INT_LEVELS(ring) \ + (CN93_SDP_R_IN_INT_LEVELS_START + ((ring) * CN93_RING_OFFSET)) + +#define CN93_SDP_R_IN_PKT_CNT(ring) \ + (CN93_SDP_R_IN_PKT_CNT_START + ((ring) * CN93_RING_OFFSET)) + +#define CN93_SDP_R_IN_BYTE_CNT(ring) \ + (CN93_SDP_R_IN_BYTE_CNT_START + ((ring) * CN93_RING_OFFSET)) + +/* Rings per Virtual Function */ +#define CN93_R_IN_CTL_RPVF_MASK (0xF) +#define CN93_R_IN_CTL_RPVF_POS (48) + +/* Number of instructions to be read in one MAC read request. + * setting to Max value(4) + */ +#define CN93_R_IN_CTL_IDLE (0x1ULL << 28) +#define CN93_R_IN_CTL_RDSIZE (0x3ULL << 25) +#define CN93_R_IN_CTL_IS_64B (0x1ULL << 24) +#define CN93_R_IN_CTL_D_NSR (0x1ULL << 8) +#define CN93_R_IN_CTL_D_ESR (0x1ULL << 6) +#define CN93_R_IN_CTL_D_ROR (0x1ULL << 5) +#define CN93_R_IN_CTL_NSR (0x1ULL << 3) +#define CN93_R_IN_CTL_ESR (0x1ULL << 1) +#define CN93_R_IN_CTL_ROR (0x1ULL << 0) + +#define CN93_R_IN_CTL_MASK (CN93_R_IN_CTL_RDSIZE | CN93_R_IN_CTL_IS_64B) + +/* ##### RING OUT (out from device to PCI host: Rx Ring) REGISTERS #### */ +#define CN93_SDP_R_OUT_CNTS_START 0x10100 +#define CN93_SDP_R_OUT_INT_LEVELS_START 0x10110 +#define CN93_SDP_R_OUT_SLIST_BADDR_START 0x10120 +#define CN93_SDP_R_OUT_SLIST_RSIZE_START 0x10130 +#define CN93_SDP_R_OUT_SLIST_DBELL_START 0x10140 +#define CN93_SDP_R_OUT_CONTROL_START 0x10150 +#define CN93_SDP_R_OUT_ENABLE_START 0x10160 +#define CN93_SDP_R_OUT_PKT_CNT_START 0x10180 +#define CN93_SDP_R_OUT_BYTE_CNT_START 0x10190 + +#define CN93_SDP_R_OUT_CONTROL(ring) \ + (CN93_SDP_R_OUT_CONTROL_START + ((ring) * CN93_RING_OFFSET)) + +#define CN93_SDP_R_OUT_ENABLE(ring) \ + (CN93_SDP_R_OUT_ENABLE_START + ((ring) * CN93_RING_OFFSET)) + +#define CN93_SDP_R_OUT_SLIST_BADDR(ring) \ + (CN93_SDP_R_OUT_SLIST_BADDR_START + ((ring) * CN93_RING_OFFSET)) + +#define CN93_SDP_R_OUT_SLIST_RSIZE(ring) \ + (CN93_SDP_R_OUT_SLIST_RSIZE_START + ((ring) * CN93_RING_OFFSET)) + +#define CN93_SDP_R_OUT_SLIST_DBELL(ring) \ + (CN93_SDP_R_OUT_SLIST_DBELL_START + ((ring) * CN93_RING_OFFSET)) + +#define CN93_SDP_R_OUT_CNTS(ring) \ + (CN93_SDP_R_OUT_CNTS_START + ((ring) * CN93_RING_OFFSET)) + +#define CN93_SDP_R_OUT_INT_LEVELS(ring) \ + (CN93_SDP_R_OUT_INT_LEVELS_START + ((ring) * CN93_RING_OFFSET)) + +#define CN93_SDP_R_OUT_PKT_CNT(ring) \ + (CN93_SDP_R_OUT_PKT_CNT_START + ((ring) * CN93_RING_OFFSET)) + +#define CN93_SDP_R_OUT_BYTE_CNT(ring) \ + (CN93_SDP_R_OUT_BYTE_CNT_START + ((ring) * CN93_RING_OFFSET)) + +/*------------------ R_OUT Masks ----------------*/ +#define CN93_R_OUT_INT_LEVELS_BMODE BIT_ULL(63) +#define CN93_R_OUT_INT_LEVELS_TIMET (32) + +#define CN93_R_OUT_CTL_IDLE BIT_ULL(40) +#define CN93_R_OUT_CTL_ES_I BIT_ULL(34) +#define CN93_R_OUT_CTL_NSR_I BIT_ULL(33) +#define CN93_R_OUT_CTL_ROR_I BIT_ULL(32) +#define CN93_R_OUT_CTL_ES_D BIT_ULL(30) +#define CN93_R_OUT_CTL_NSR_D BIT_ULL(29) +#define CN93_R_OUT_CTL_ROR_D BIT_ULL(28) +#define CN93_R_OUT_CTL_ES_P BIT_ULL(26) +#define CN93_R_OUT_CTL_NSR_P BIT_ULL(25) +#define CN93_R_OUT_CTL_ROR_P BIT_ULL(24) +#define CN93_R_OUT_CTL_IMODE BIT_ULL(23) + +/* ############### Interrupt Moderation Registers ############### */ +#define CN93_SDP_R_IN_INT_MDRT_CTL0_START 0x10280 +#define CN93_SDP_R_IN_INT_MDRT_CTL1_START 0x102A0 +#define CN93_SDP_R_IN_INT_MDRT_DBG_START 0x102C0 + +#define CN93_SDP_R_OUT_INT_MDRT_CTL0_START 0x10380 +#define CN93_SDP_R_OUT_INT_MDRT_CTL1_START 0x103A0 +#define CN93_SDP_R_OUT_INT_MDRT_DBG_START 0x103C0 + +#define CN93_SDP_R_IN_INT_MDRT_CTL0(ring) \ + (CN93_SDP_R_IN_INT_MDRT_CTL0_START + ((ring) * CN93_RING_OFFSET)) + +#define CN93_SDP_R_IN_INT_MDRT_CTL1(ring) \ + (CN93_SDP_R_IN_INT_MDRT_CTL1_START + ((ring) * CN93_RING_OFFSET)) + +#define CN93_SDP_R_IN_INT_MDRT_DBG(ring) \ + (CN93_SDP_R_IN_INT_MDRT_DBG_START + ((ring) * CN93_RING_OFFSET)) + +#define CN93_SDP_R_OUT_INT_MDRT_CTL0(ring) \ + (CN93_SDP_R_OUT_INT_MDRT_CTL0_START + ((ring) * CN93_RING_OFFSET)) + +#define CN93_SDP_R_OUT_INT_MDRT_CTL1(ring) \ + (CN93_SDP_R_OUT_INT_MDRT_CTL1_START + ((ring) * CN93_RING_OFFSET)) + +#define CN93_SDP_R_OUT_INT_MDRT_DBG(ring) \ + (CN93_SDP_R_OUT_INT_MDRT_DBG_START + ((ring) * CN93_RING_OFFSET)) + +/* ##################### Mail Box Registers ########################## */ +/* INT register for VF. when a MBOX write from PF happed to a VF, + * corresponding bit will be set in this register as well as in + * PF_VF_INT register. + * + * This is a RO register, the int can be cleared by writing 1 to PF_VF_INT + */ +/* Basically first 3 are from PF to VF. The last one is data from VF to PF */ +#define CN93_SDP_R_MBOX_PF_VF_DATA_START 0x10210 +#define CN93_SDP_R_MBOX_PF_VF_INT_START 0x10220 +#define CN93_SDP_R_MBOX_VF_PF_DATA_START 0x10230 + +#define CN93_SDP_R_MBOX_PF_VF_DATA(ring) \ + (CN93_SDP_R_MBOX_PF_VF_DATA_START + ((ring) * CN93_RING_OFFSET)) + +#define CN93_SDP_R_MBOX_PF_VF_INT(ring) \ + (CN93_SDP_R_MBOX_PF_VF_INT_START + ((ring) * CN93_RING_OFFSET)) + +#define CN93_SDP_R_MBOX_VF_PF_DATA(ring) \ + (CN93_SDP_R_MBOX_VF_PF_DATA_START + ((ring) * CN93_RING_OFFSET)) + +/* ##################### Interrupt Registers ########################## */ +#define CN93_SDP_R_ERR_TYPE_START 0x10400 + +#define CN93_SDP_R_ERR_TYPE(ring) \ + (CN93_SDP_R_ERR_TYPE_START + ((ring) * CN93_RING_OFFSET)) + +#define CN93_SDP_R_MBOX_ISM_START 0x10500 +#define CN93_SDP_R_OUT_CNTS_ISM_START 0x10510 +#define CN93_SDP_R_IN_CNTS_ISM_START 0x10520 + +#define CN93_SDP_R_MBOX_ISM(ring) \ + (CN93_SDP_R_MBOX_ISM_START + ((ring) * CN93_RING_OFFSET)) + +#define CN93_SDP_R_OUT_CNTS_ISM(ring) \ + (CN93_SDP_R_OUT_CNTS_ISM_START + ((ring) * CN93_RING_OFFSET)) + +#define CN93_SDP_R_IN_CNTS_ISM(ring) \ + (CN93_SDP_R_IN_CNTS_ISM_START + ((ring) * CN93_RING_OFFSET)) + +#define CN93_SDP_EPF_MBOX_RINT_START 0x20100 +#define CN93_SDP_EPF_MBOX_RINT_W1S_START 0x20120 +#define CN93_SDP_EPF_MBOX_RINT_ENA_W1C_START 0x20140 +#define CN93_SDP_EPF_MBOX_RINT_ENA_W1S_START 0x20160 + +#define CN93_SDP_EPF_VFIRE_RINT_START 0x20180 +#define CN93_SDP_EPF_VFIRE_RINT_W1S_START 0x201A0 +#define CN93_SDP_EPF_VFIRE_RINT_ENA_W1C_START 0x201C0 +#define CN93_SDP_EPF_VFIRE_RINT_ENA_W1S_START 0x201E0 + +#define CN93_SDP_EPF_IRERR_RINT 0x20200 +#define CN93_SDP_EPF_IRERR_RINT_W1S 0x20210 +#define CN93_SDP_EPF_IRERR_RINT_ENA_W1C 0x20220 +#define CN93_SDP_EPF_IRERR_RINT_ENA_W1S 0x20230 + +#define CN93_SDP_EPF_VFORE_RINT_START 0x20240 +#define CN93_SDP_EPF_VFORE_RINT_W1S_START 0x20260 +#define CN93_SDP_EPF_VFORE_RINT_ENA_W1C_START 0x20280 +#define CN93_SDP_EPF_VFORE_RINT_ENA_W1S_START 0x202A0 + +#define CN93_SDP_EPF_ORERR_RINT 0x20320 +#define CN93_SDP_EPF_ORERR_RINT_W1S 0x20330 +#define CN93_SDP_EPF_ORERR_RINT_ENA_W1C 0x20340 +#define CN93_SDP_EPF_ORERR_RINT_ENA_W1S 0x20350 + +#define CN93_SDP_EPF_OEI_RINT 0x20360 +#define CN93_SDP_EPF_OEI_RINT_W1S 0x20370 +#define CN93_SDP_EPF_OEI_RINT_ENA_W1C 0x20380 +#define CN93_SDP_EPF_OEI_RINT_ENA_W1S 0x20390 + +#define CN93_SDP_EPF_DMA_RINT 0x20400 +#define CN93_SDP_EPF_DMA_RINT_W1S 0x20410 +#define CN93_SDP_EPF_DMA_RINT_ENA_W1C 0x20420 +#define CN93_SDP_EPF_DMA_RINT_ENA_W1S 0x20430 + +#define CN93_SDP_EPF_DMA_INT_LEVEL_START 0x20440 +#define CN93_SDP_EPF_DMA_CNT_START 0x20460 +#define CN93_SDP_EPF_DMA_TIM_START 0x20480 + +#define CN93_SDP_EPF_MISC_RINT 0x204A0 +#define CN93_SDP_EPF_MISC_RINT_W1S 0x204B0 +#define CN93_SDP_EPF_MISC_RINT_ENA_W1C 0x204C0 +#define CN93_SDP_EPF_MISC_RINT_ENA_W1S 0x204D0 + +#define CN93_SDP_EPF_DMA_VF_RINT_START 0x204E0 +#define CN93_SDP_EPF_DMA_VF_RINT_W1S_START 0x20500 +#define CN93_SDP_EPF_DMA_VF_RINT_ENA_W1C_START 0x20520 +#define CN93_SDP_EPF_DMA_VF_RINT_ENA_W1S_START 0x20540 + +#define CN93_SDP_EPF_PP_VF_RINT_START 0x20560 +#define CN93_SDP_EPF_PP_VF_RINT_W1S_START 0x20580 +#define CN93_SDP_EPF_PP_VF_RINT_ENA_W1C_START 0x205A0 +#define CN93_SDP_EPF_PP_VF_RINT_ENA_W1S_START 0x205C0 + +#define CN93_SDP_EPF_MBOX_RINT(index) \ + (CN93_SDP_EPF_MBOX_RINT_START + ((index) * CN93_BIT_ARRAY_OFFSET)) +#define CN93_SDP_EPF_MBOX_RINT_W1S(index) \ + (CN93_SDP_EPF_MBOX_RINT_W1S_START + ((index) * CN93_BIT_ARRAY_OFFSET)) +#define CN93_SDP_EPF_MBOX_RINT_ENA_W1C(index) \ + (CN93_SDP_EPF_MBOX_RINT_ENA_W1C_START + ((index) * CN93_BIT_ARRAY_OFFSET)) +#define CN93_SDP_EPF_MBOX_RINT_ENA_W1S(index) \ + (CN93_SDP_EPF_MBOX_RINT_ENA_W1S_START + ((index) * CN93_BIT_ARRAY_OFFSET)) + +#define CN93_SDP_EPF_VFIRE_RINT(index) \ + (CN93_SDP_EPF_VFIRE_RINT_START + ((index) * CN93_BIT_ARRAY_OFFSET)) +#define CN93_SDP_EPF_VFIRE_RINT_W1S(index) \ + (CN93_SDP_EPF_VFIRE_RINT_W1S_START + ((index) * CN93_BIT_ARRAY_OFFSET)) +#define CN93_SDP_EPF_VFIRE_RINT_ENA_W1C(index) \ + (CN93_SDP_EPF_VFIRE_RINT_ENA_W1C_START + ((index) * CN93_BIT_ARRAY_OFFSET)) +#define CN93_SDP_EPF_VFIRE_RINT_ENA_W1S(index) \ + (CN93_SDP_EPF_VFIRE_RINT_ENA_W1S_START + ((index) * CN93_BIT_ARRAY_OFFSET)) + +#define CN93_SDP_EPF_VFORE_RINT(index) \ + (CN93_SDP_EPF_VFORE_RINT_START + ((index) * CN93_BIT_ARRAY_OFFSET)) +#define CN93_SDP_EPF_VFORE_RINT_W1S(index) \ + (CN93_SDP_EPF_VFORE_RINT_W1S_START + ((index) * CN93_BIT_ARRAY_OFFSET)) +#define CN93_SDP_EPF_VFORE_RINT_ENA_W1C(index) \ + (CN93_SDP_EPF_VFORE_RINT_ENA_W1C_START + ((index) * CN93_BIT_ARRAY_OFFSET)) +#define CN93_SDP_EPF_VFORE_RINT_ENA_W1S(index) \ + (CN93_SDP_EPF_VFORE_RINT_ENA_W1S_START + ((index) * CN93_BIT_ARRAY_OFFSET)) + +#define CN93_SDP_EPF_DMA_VF_RINT(index) \ + (CN93_SDP_EPF_DMA_VF_RINT_START + ((index) + CN93_BIT_ARRAY_OFFSET)) +#define CN93_SDP_EPF_DMA_VF_RINT_W1S(index) \ + (CN93_SDP_EPF_DMA_VF_RINT_W1S_START + ((index) + CN93_BIT_ARRAY_OFFSET)) +#define CN93_SDP_EPF_DMA_VF_RINT_ENA_W1C(index) \ + (CN93_SDP_EPF_DMA_VF_RINT_ENA_W1C_START + ((index) + CN93_BIT_ARRAY_OFFSET)) +#define CN93_SDP_EPF_DMA_VF_RINT_ENA_W1S(index) \ + (CN93_SDP_EPF_DMA_VF_RINT_ENA_W1S_START + ((index) + CN93_BIT_ARRAY_OFFSET)) + +#define CN93_SDP_EPF_PP_VF_RINT(index) \ + (CN93_SDP_EPF_PP_VF_RINT_START + ((index) + CN93_BIT_ARRAY_OFFSET)) +#define CN93_SDP_EPF_PP_VF_RINT_W1S(index) \ + (CN93_SDP_EPF_PP_VF_RINT_W1S_START + ((index) + CN93_BIT_ARRAY_OFFSET)) +#define CN93_SDP_EPF_PP_VF_RINT_ENA_W1C(index) \ + (CN93_SDP_EPF_PP_VF_RINT_ENA_W1C_START + ((index) + CN93_BIT_ARRAY_OFFSET)) +#define CN93_SDP_EPF_PP_VF_RINT_ENA_W1S(index) \ + (CN93_SDP_EPF_PP_VF_RINT_ENA_W1S_START + ((index) + CN93_BIT_ARRAY_OFFSET)) + +/*------------------ Interrupt Masks ----------------*/ +#define CN93_INTR_R_SEND_ISM BIT_ULL(63) +#define CN93_INTR_R_OUT_INT BIT_ULL(62) +#define CN93_INTR_R_IN_INT BIT_ULL(61) +#define CN93_INTR_R_MBOX_INT BIT_ULL(60) +#define CN93_INTR_R_RESEND BIT_ULL(59) +#define CN93_INTR_R_CLR_TIM BIT_ULL(58) + +/* ####################### Ring Mapping Registers ################################## */ +#define CN93_SDP_EPVF_RING_START 0x26000 +#define CN93_SDP_IN_RING_TB_MAP_START 0x28000 +#define CN93_SDP_IN_RATE_LIMIT_START 0x2A000 +#define CN93_SDP_MAC_PF_RING_CTL_START 0x2C000 + +#define CN93_SDP_EPVF_RING(ring) \ + (CN93_SDP_EPVF_RING_START + ((ring) * CN93_EPVF_RING_OFFSET)) +#define CN93_SDP_IN_RING_TB_MAP(ring) \ + (CN93_SDP_N_RING_TB_MAP_START + ((ring) * CN93_EPVF_RING_OFFSET)) +#define CN93_SDP_IN_RATE_LIMIT(ring) \ + (CN93_SDP_IN_RATE_LIMIT_START + ((ring) * CN93_EPVF_RING_OFFSET)) +#define CN93_SDP_MAC_PF_RING_CTL(mac) \ + (CN93_SDP_MAC_PF_RING_CTL_START + ((mac) * CN93_MAC_OFFSET)) + +#define CN93_SDP_MAC_PF_RING_CTL_NPFS(val) ((val) & 0xF) +#define CN93_SDP_MAC_PF_RING_CTL_SRN(val) (((val) >> 8) & 0xFF) +#define CN93_SDP_MAC_PF_RING_CTL_RPPF(val) (((val) >> 16) & 0x3F) + +/* Number of non-queue interrupts in CN93xx */ +#define CN93_NUM_NON_IOQ_INTR 16 +#endif /* _OCTEP_REGS_CN9K_PF_H_ */ diff --git a/drivers/net/ethernet/marvell/octeon_ep/octep_rx.c b/drivers/net/ethernet/marvell/octeon_ep/octep_rx.c new file mode 100644 index 000000000..392d9b0da --- /dev/null +++ b/drivers/net/ethernet/marvell/octeon_ep/octep_rx.c @@ -0,0 +1,506 @@ +// SPDX-License-Identifier: GPL-2.0 +/* Marvell Octeon EP (EndPoint) Ethernet Driver + * + * Copyright (C) 2020 Marvell. + * + */ + +#include <linux/pci.h> +#include <linux/etherdevice.h> +#include <linux/vmalloc.h> + +#include "octep_config.h" +#include "octep_main.h" + +static void octep_oq_reset_indices(struct octep_oq *oq) +{ + oq->host_read_idx = 0; + oq->host_refill_idx = 0; + oq->refill_count = 0; + oq->last_pkt_count = 0; + oq->pkts_pending = 0; +} + +/** + * octep_oq_fill_ring_buffers() - fill initial receive buffers for Rx ring. + * + * @oq: Octeon Rx queue data structure. + * + * Return: 0, if successfully filled receive buffers for all descriptors. + * -1, if failed to allocate a buffer or failed to map for DMA. + */ +static int octep_oq_fill_ring_buffers(struct octep_oq *oq) +{ + struct octep_oq_desc_hw *desc_ring = oq->desc_ring; + struct page *page; + u32 i; + + for (i = 0; i < oq->max_count; i++) { + page = dev_alloc_page(); + if (unlikely(!page)) { + dev_err(oq->dev, "Rx buffer alloc failed\n"); + goto rx_buf_alloc_err; + } + desc_ring[i].buffer_ptr = dma_map_page(oq->dev, page, 0, + PAGE_SIZE, + DMA_FROM_DEVICE); + if (dma_mapping_error(oq->dev, desc_ring[i].buffer_ptr)) { + dev_err(oq->dev, + "OQ-%d buffer alloc: DMA mapping error!\n", + oq->q_no); + put_page(page); + goto dma_map_err; + } + oq->buff_info[i].page = page; + } + + return 0; + +dma_map_err: +rx_buf_alloc_err: + while (i) { + i--; + dma_unmap_page(oq->dev, desc_ring[i].buffer_ptr, PAGE_SIZE, DMA_FROM_DEVICE); + put_page(oq->buff_info[i].page); + oq->buff_info[i].page = NULL; + } + + return -1; +} + +/** + * octep_oq_refill() - refill buffers for used Rx ring descriptors. + * + * @oct: Octeon device private data structure. + * @oq: Octeon Rx queue data structure. + * + * Return: number of descriptors successfully refilled with receive buffers. + */ +static int octep_oq_refill(struct octep_device *oct, struct octep_oq *oq) +{ + struct octep_oq_desc_hw *desc_ring = oq->desc_ring; + struct page *page; + u32 refill_idx, i; + + refill_idx = oq->host_refill_idx; + for (i = 0; i < oq->refill_count; i++) { + page = dev_alloc_page(); + if (unlikely(!page)) { + dev_err(oq->dev, "refill: rx buffer alloc failed\n"); + oq->stats.alloc_failures++; + break; + } + + desc_ring[refill_idx].buffer_ptr = dma_map_page(oq->dev, page, 0, + PAGE_SIZE, DMA_FROM_DEVICE); + if (dma_mapping_error(oq->dev, desc_ring[refill_idx].buffer_ptr)) { + dev_err(oq->dev, + "OQ-%d buffer refill: DMA mapping error!\n", + oq->q_no); + put_page(page); + oq->stats.alloc_failures++; + break; + } + oq->buff_info[refill_idx].page = page; + refill_idx++; + if (refill_idx == oq->max_count) + refill_idx = 0; + } + oq->host_refill_idx = refill_idx; + oq->refill_count -= i; + + return i; +} + +/** + * octep_setup_oq() - Setup a Rx queue. + * + * @oct: Octeon device private data structure. + * @q_no: Rx queue number to be setup. + * + * Allocate resources for a Rx queue. + */ +static int octep_setup_oq(struct octep_device *oct, int q_no) +{ + struct octep_oq *oq; + u32 desc_ring_size; + + oq = vzalloc(sizeof(*oq)); + if (!oq) + goto create_oq_fail; + oct->oq[q_no] = oq; + + oq->octep_dev = oct; + oq->netdev = oct->netdev; + oq->dev = &oct->pdev->dev; + oq->q_no = q_no; + oq->max_count = CFG_GET_OQ_NUM_DESC(oct->conf); + oq->ring_size_mask = oq->max_count - 1; + oq->buffer_size = CFG_GET_OQ_BUF_SIZE(oct->conf); + oq->max_single_buffer_size = oq->buffer_size - OCTEP_OQ_RESP_HW_SIZE; + + /* When the hardware/firmware supports additional capabilities, + * additional header is filled-in by Octeon after length field in + * Rx packets. this header contains additional packet information. + */ + if (oct->caps_enabled) + oq->max_single_buffer_size -= OCTEP_OQ_RESP_HW_EXT_SIZE; + + oq->refill_threshold = CFG_GET_OQ_REFILL_THRESHOLD(oct->conf); + + desc_ring_size = oq->max_count * OCTEP_OQ_DESC_SIZE; + oq->desc_ring = dma_alloc_coherent(oq->dev, desc_ring_size, + &oq->desc_ring_dma, GFP_KERNEL); + + if (unlikely(!oq->desc_ring)) { + dev_err(oq->dev, + "Failed to allocate DMA memory for OQ-%d !!\n", q_no); + goto desc_dma_alloc_err; + } + + oq->buff_info = vzalloc(oq->max_count * OCTEP_OQ_RECVBUF_SIZE); + if (unlikely(!oq->buff_info)) { + dev_err(&oct->pdev->dev, + "Failed to allocate buffer info for OQ-%d\n", q_no); + goto buf_list_err; + } + + if (octep_oq_fill_ring_buffers(oq)) + goto oq_fill_buff_err; + + octep_oq_reset_indices(oq); + oct->hw_ops.setup_oq_regs(oct, q_no); + oct->num_oqs++; + + return 0; + +oq_fill_buff_err: + vfree(oq->buff_info); + oq->buff_info = NULL; +buf_list_err: + dma_free_coherent(oq->dev, desc_ring_size, + oq->desc_ring, oq->desc_ring_dma); + oq->desc_ring = NULL; +desc_dma_alloc_err: + vfree(oq); + oct->oq[q_no] = NULL; +create_oq_fail: + return -1; +} + +/** + * octep_oq_free_ring_buffers() - Free ring buffers. + * + * @oq: Octeon Rx queue data structure. + * + * Free receive buffers in unused Rx queue descriptors. + */ +static void octep_oq_free_ring_buffers(struct octep_oq *oq) +{ + struct octep_oq_desc_hw *desc_ring = oq->desc_ring; + int i; + + if (!oq->desc_ring || !oq->buff_info) + return; + + for (i = 0; i < oq->max_count; i++) { + if (oq->buff_info[i].page) { + dma_unmap_page(oq->dev, desc_ring[i].buffer_ptr, + PAGE_SIZE, DMA_FROM_DEVICE); + put_page(oq->buff_info[i].page); + oq->buff_info[i].page = NULL; + desc_ring[i].buffer_ptr = 0; + } + } + octep_oq_reset_indices(oq); +} + +/** + * octep_free_oq() - Free Rx queue resources. + * + * @oq: Octeon Rx queue data structure. + * + * Free all resources of a Rx queue. + */ +static int octep_free_oq(struct octep_oq *oq) +{ + struct octep_device *oct = oq->octep_dev; + int q_no = oq->q_no; + + octep_oq_free_ring_buffers(oq); + + vfree(oq->buff_info); + + if (oq->desc_ring) + dma_free_coherent(oq->dev, + oq->max_count * OCTEP_OQ_DESC_SIZE, + oq->desc_ring, oq->desc_ring_dma); + + vfree(oq); + oct->oq[q_no] = NULL; + oct->num_oqs--; + return 0; +} + +/** + * octep_setup_oqs() - setup resources for all Rx queues. + * + * @oct: Octeon device private data structure. + */ +int octep_setup_oqs(struct octep_device *oct) +{ + int i, retval = 0; + + oct->num_oqs = 0; + for (i = 0; i < CFG_GET_PORTS_ACTIVE_IO_RINGS(oct->conf); i++) { + retval = octep_setup_oq(oct, i); + if (retval) { + dev_err(&oct->pdev->dev, + "Failed to setup OQ(RxQ)-%d.\n", i); + goto oq_setup_err; + } + dev_dbg(&oct->pdev->dev, "Successfully setup OQ(RxQ)-%d.\n", i); + } + + return 0; + +oq_setup_err: + while (i) { + i--; + octep_free_oq(oct->oq[i]); + } + return -1; +} + +/** + * octep_oq_dbell_init() - Initialize Rx queue doorbell. + * + * @oct: Octeon device private data structure. + * + * Write number of descriptors to Rx queue doorbell register. + */ +void octep_oq_dbell_init(struct octep_device *oct) +{ + int i; + + for (i = 0; i < oct->num_oqs; i++) + writel(oct->oq[i]->max_count, oct->oq[i]->pkts_credit_reg); +} + +/** + * octep_free_oqs() - Free resources of all Rx queues. + * + * @oct: Octeon device private data structure. + */ +void octep_free_oqs(struct octep_device *oct) +{ + int i; + + for (i = 0; i < CFG_GET_PORTS_ACTIVE_IO_RINGS(oct->conf); i++) { + if (!oct->oq[i]) + continue; + octep_free_oq(oct->oq[i]); + dev_dbg(&oct->pdev->dev, + "Successfully freed OQ(RxQ)-%d.\n", i); + } +} + +/** + * octep_oq_check_hw_for_pkts() - Check for new Rx packets. + * + * @oct: Octeon device private data structure. + * @oq: Octeon Rx queue data structure. + * + * Return: packets received after previous check. + */ +static int octep_oq_check_hw_for_pkts(struct octep_device *oct, + struct octep_oq *oq) +{ + u32 pkt_count, new_pkts; + + pkt_count = readl(oq->pkts_sent_reg); + new_pkts = pkt_count - oq->last_pkt_count; + + /* Clear the hardware packets counter register if the rx queue is + * being processed continuously with-in a single interrupt and + * reached half its max value. + * this counter is not cleared every time read, to save write cycles. + */ + if (unlikely(pkt_count > 0xF0000000U)) { + writel(pkt_count, oq->pkts_sent_reg); + pkt_count = readl(oq->pkts_sent_reg); + new_pkts += pkt_count; + } + oq->last_pkt_count = pkt_count; + oq->pkts_pending += new_pkts; + return new_pkts; +} + +/** + * __octep_oq_process_rx() - Process hardware Rx queue and push to stack. + * + * @oct: Octeon device private data structure. + * @oq: Octeon Rx queue data structure. + * @pkts_to_process: number of packets to be processed. + * + * Process the new packets in Rx queue. + * Packets larger than single Rx buffer arrive in consecutive descriptors. + * But, count returned by the API only accounts full packets, not fragments. + * + * Return: number of packets processed and pushed to stack. + */ +static int __octep_oq_process_rx(struct octep_device *oct, + struct octep_oq *oq, u16 pkts_to_process) +{ + struct octep_oq_resp_hw_ext *resp_hw_ext = NULL; + struct octep_rx_buffer *buff_info; + struct octep_oq_resp_hw *resp_hw; + u32 pkt, rx_bytes, desc_used; + struct sk_buff *skb; + u16 data_offset; + u32 read_idx; + + read_idx = oq->host_read_idx; + rx_bytes = 0; + desc_used = 0; + for (pkt = 0; pkt < pkts_to_process; pkt++) { + buff_info = (struct octep_rx_buffer *)&oq->buff_info[read_idx]; + dma_unmap_page(oq->dev, oq->desc_ring[read_idx].buffer_ptr, + PAGE_SIZE, DMA_FROM_DEVICE); + resp_hw = page_address(buff_info->page); + buff_info->page = NULL; + + /* Swap the length field that is in Big-Endian to CPU */ + buff_info->len = be64_to_cpu(resp_hw->length); + if (oct->caps_enabled & OCTEP_CAP_RX_CHECKSUM) { + /* Extended response header is immediately after + * response header (resp_hw) + */ + resp_hw_ext = (struct octep_oq_resp_hw_ext *) + (resp_hw + 1); + buff_info->len -= OCTEP_OQ_RESP_HW_EXT_SIZE; + /* Packet Data is immediately after + * extended response header. + */ + data_offset = OCTEP_OQ_RESP_HW_SIZE + + OCTEP_OQ_RESP_HW_EXT_SIZE; + } else { + /* Data is immediately after + * Hardware Rx response header. + */ + data_offset = OCTEP_OQ_RESP_HW_SIZE; + } + rx_bytes += buff_info->len; + + if (buff_info->len <= oq->max_single_buffer_size) { + skb = build_skb((void *)resp_hw, PAGE_SIZE); + skb_reserve(skb, data_offset); + skb_put(skb, buff_info->len); + read_idx++; + desc_used++; + if (read_idx == oq->max_count) + read_idx = 0; + } else { + struct skb_shared_info *shinfo; + u16 data_len; + + skb = build_skb((void *)resp_hw, PAGE_SIZE); + skb_reserve(skb, data_offset); + /* Head fragment includes response header(s); + * subsequent fragments contains only data. + */ + skb_put(skb, oq->max_single_buffer_size); + read_idx++; + desc_used++; + if (read_idx == oq->max_count) + read_idx = 0; + + shinfo = skb_shinfo(skb); + data_len = buff_info->len - oq->max_single_buffer_size; + while (data_len) { + dma_unmap_page(oq->dev, oq->desc_ring[read_idx].buffer_ptr, + PAGE_SIZE, DMA_FROM_DEVICE); + buff_info = (struct octep_rx_buffer *) + &oq->buff_info[read_idx]; + if (data_len < oq->buffer_size) { + buff_info->len = data_len; + data_len = 0; + } else { + buff_info->len = oq->buffer_size; + data_len -= oq->buffer_size; + } + + skb_add_rx_frag(skb, shinfo->nr_frags, + buff_info->page, 0, + buff_info->len, + buff_info->len); + buff_info->page = NULL; + read_idx++; + desc_used++; + if (read_idx == oq->max_count) + read_idx = 0; + } + } + + skb->dev = oq->netdev; + skb->protocol = eth_type_trans(skb, skb->dev); + if (resp_hw_ext && + resp_hw_ext->csum_verified == OCTEP_CSUM_VERIFIED) + skb->ip_summed = CHECKSUM_UNNECESSARY; + else + skb->ip_summed = CHECKSUM_NONE; + napi_gro_receive(oq->napi, skb); + } + + oq->host_read_idx = read_idx; + oq->refill_count += desc_used; + oq->stats.packets += pkt; + oq->stats.bytes += rx_bytes; + + return pkt; +} + +/** + * octep_oq_process_rx() - Process Rx queue. + * + * @oq: Octeon Rx queue data structure. + * @budget: max number of packets can be processed in one invocation. + * + * Check for newly received packets and process them. + * Keeps checking for new packets until budget is used or no new packets seen. + * + * Return: number of packets processed. + */ +int octep_oq_process_rx(struct octep_oq *oq, int budget) +{ + u32 pkts_available, pkts_processed, total_pkts_processed; + struct octep_device *oct = oq->octep_dev; + + pkts_available = 0; + pkts_processed = 0; + total_pkts_processed = 0; + while (total_pkts_processed < budget) { + /* update pending count only when current one exhausted */ + if (oq->pkts_pending == 0) + octep_oq_check_hw_for_pkts(oct, oq); + pkts_available = min(budget - total_pkts_processed, + oq->pkts_pending); + if (!pkts_available) + break; + + pkts_processed = __octep_oq_process_rx(oct, oq, + pkts_available); + oq->pkts_pending -= pkts_processed; + total_pkts_processed += pkts_processed; + } + + if (oq->refill_count >= oq->refill_threshold) { + u32 desc_refilled = octep_oq_refill(oct, oq); + + /* flush pending writes before updating credits */ + wmb(); + writel(desc_refilled, oq->pkts_credit_reg); + } + + return total_pkts_processed; +} diff --git a/drivers/net/ethernet/marvell/octeon_ep/octep_rx.h b/drivers/net/ethernet/marvell/octeon_ep/octep_rx.h new file mode 100644 index 000000000..782a24f27 --- /dev/null +++ b/drivers/net/ethernet/marvell/octeon_ep/octep_rx.h @@ -0,0 +1,199 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* Marvell Octeon EP (EndPoint) Ethernet Driver + * + * Copyright (C) 2020 Marvell. + * + */ + +#ifndef _OCTEP_RX_H_ +#define _OCTEP_RX_H_ + +/* struct octep_oq_desc_hw - Octeon Hardware OQ descriptor format. + * + * The descriptor ring is made of descriptors which have 2 64-bit values: + * + * @buffer_ptr: DMA address of the skb->data + * @info_ptr: DMA address of host memory, used to update pkt count by hw. + * This is currently unused to save pci writes. + */ +struct octep_oq_desc_hw { + dma_addr_t buffer_ptr; + u64 info_ptr; +}; + +#define OCTEP_OQ_DESC_SIZE (sizeof(struct octep_oq_desc_hw)) + +#define OCTEP_CSUM_L4_VERIFIED 0x1 +#define OCTEP_CSUM_IP_VERIFIED 0x2 +#define OCTEP_CSUM_VERIFIED (OCTEP_CSUM_L4_VERIFIED | OCTEP_CSUM_IP_VERIFIED) + +/* Extended Response Header in packet data received from Hardware. + * Includes metadata like checksum status. + * this is valid only if hardware/firmware published support for this. + * This is at offset 0 of packet data (skb->data). + */ +struct octep_oq_resp_hw_ext { + /* Reserved. */ + u64 reserved:62; + + /* checksum verified. */ + u64 csum_verified:2; +}; + +#define OCTEP_OQ_RESP_HW_EXT_SIZE (sizeof(struct octep_oq_resp_hw_ext)) + +/* Length of Rx packet DMA'ed by Octeon to Host. + * this is in bigendian; so need to be converted to cpu endian. + * Octeon writes this at the beginning of Rx buffer (skb->data). + */ +struct octep_oq_resp_hw { + /* The Length of the packet. */ + __be64 length; +}; + +#define OCTEP_OQ_RESP_HW_SIZE (sizeof(struct octep_oq_resp_hw)) + +/* Pointer to data buffer. + * Driver keeps a pointer to the data buffer that it made available to + * the Octeon device. Since the descriptor ring keeps physical (bus) + * addresses, this field is required for the driver to keep track of + * the virtual address pointers. The fields are operated by + * OS-dependent routines. + */ +struct octep_rx_buffer { + struct page *page; + + /* length from rx hardware descriptor after converting to cpu endian */ + u64 len; +}; + +#define OCTEP_OQ_RECVBUF_SIZE (sizeof(struct octep_rx_buffer)) + +/* Output Queue statistics. Each output queue has four stats fields. */ +struct octep_oq_stats { + /* Number of packets received from the Device. */ + u64 packets; + + /* Number of bytes received from the Device. */ + u64 bytes; + + /* Number of times failed to allocate buffers. */ + u64 alloc_failures; +}; + +#define OCTEP_OQ_STATS_SIZE (sizeof(struct octep_oq_stats)) + +/* Hardware interface Rx statistics */ +struct octep_iface_rx_stats { + /* Received packets */ + u64 pkts; + + /* Octets of received packets */ + u64 octets; + + /* Received PAUSE and Control packets */ + u64 pause_pkts; + + /* Received PAUSE and Control octets */ + u64 pause_octets; + + /* Filtered DMAC0 packets */ + u64 dmac0_pkts; + + /* Filtered DMAC0 octets */ + u64 dmac0_octets; + + /* Packets dropped due to RX FIFO full */ + u64 dropped_pkts_fifo_full; + + /* Octets dropped due to RX FIFO full */ + u64 dropped_octets_fifo_full; + + /* Error packets */ + u64 err_pkts; + + /* Filtered DMAC1 packets */ + u64 dmac1_pkts; + + /* Filtered DMAC1 octets */ + u64 dmac1_octets; + + /* NCSI-bound packets dropped */ + u64 ncsi_dropped_pkts; + + /* NCSI-bound octets dropped */ + u64 ncsi_dropped_octets; + + /* Multicast packets received. */ + u64 mcast_pkts; + + /* Broadcast packets received. */ + u64 bcast_pkts; + +}; + +/* The Descriptor Ring Output Queue structure. + * This structure has all the information required to implement a + * Octeon OQ. + */ +struct octep_oq { + u32 q_no; + + struct octep_device *octep_dev; + struct net_device *netdev; + struct device *dev; + + struct napi_struct *napi; + + /* The receive buffer list. This list has the virtual addresses + * of the buffers. + */ + struct octep_rx_buffer *buff_info; + + /* Pointer to the mapped packet credit register. + * Host writes number of info/buffer ptrs available to this register + */ + u8 __iomem *pkts_credit_reg; + + /* Pointer to the mapped packet sent register. + * Octeon writes the number of packets DMA'ed to host memory + * in this register. + */ + u8 __iomem *pkts_sent_reg; + + /* Statistics for this OQ. */ + struct octep_oq_stats stats; + + /* Packets pending to be processed */ + u32 pkts_pending; + u32 last_pkt_count; + + /* Index in the ring where the driver should read the next packet */ + u32 host_read_idx; + + /* Number of descriptors in this ring. */ + u32 max_count; + u32 ring_size_mask; + + /* The number of descriptors pending refill. */ + u32 refill_count; + + /* Index in the ring where the driver will refill the + * descriptor's buffer + */ + u32 host_refill_idx; + u32 refill_threshold; + + /* The size of each buffer pointed by the buffer pointer. */ + u32 buffer_size; + u32 max_single_buffer_size; + + /* The 8B aligned descriptor ring starts at this address. */ + struct octep_oq_desc_hw *desc_ring; + + /* DMA mapped address of the OQ descriptor ring. */ + dma_addr_t desc_ring_dma; +}; + +#define OCTEP_OQ_SIZE (sizeof(struct octep_oq)) +#endif /* _OCTEP_RX_H_ */ diff --git a/drivers/net/ethernet/marvell/octeon_ep/octep_tx.c b/drivers/net/ethernet/marvell/octeon_ep/octep_tx.c new file mode 100644 index 000000000..d0adb82d6 --- /dev/null +++ b/drivers/net/ethernet/marvell/octeon_ep/octep_tx.c @@ -0,0 +1,334 @@ +// SPDX-License-Identifier: GPL-2.0 +/* Marvell Octeon EP (EndPoint) Ethernet Driver + * + * Copyright (C) 2020 Marvell. + * + */ + +#include <linux/pci.h> +#include <linux/etherdevice.h> +#include <linux/vmalloc.h> + +#include "octep_config.h" +#include "octep_main.h" + +/* Reset various index of Tx queue data structure. */ +static void octep_iq_reset_indices(struct octep_iq *iq) +{ + iq->fill_cnt = 0; + iq->host_write_index = 0; + iq->octep_read_index = 0; + iq->flush_index = 0; + iq->pkts_processed = 0; + iq->pkt_in_done = 0; + atomic_set(&iq->instr_pending, 0); +} + +/** + * octep_iq_process_completions() - Process Tx queue completions. + * + * @iq: Octeon Tx queue data structure. + * @budget: max number of completions to be processed in one invocation. + */ +int octep_iq_process_completions(struct octep_iq *iq, u16 budget) +{ + u32 compl_pkts, compl_bytes, compl_sg; + struct octep_device *oct = iq->octep_dev; + struct octep_tx_buffer *tx_buffer; + struct skb_shared_info *shinfo; + u32 fi = iq->flush_index; + struct sk_buff *skb; + u8 frags, i; + + compl_pkts = 0; + compl_sg = 0; + compl_bytes = 0; + iq->octep_read_index = oct->hw_ops.update_iq_read_idx(iq); + + while (likely(budget && (fi != iq->octep_read_index))) { + tx_buffer = iq->buff_info + fi; + skb = tx_buffer->skb; + + fi++; + if (unlikely(fi == iq->max_count)) + fi = 0; + compl_bytes += skb->len; + compl_pkts++; + budget--; + + if (!tx_buffer->gather) { + dma_unmap_single(iq->dev, tx_buffer->dma, + tx_buffer->skb->len, DMA_TO_DEVICE); + dev_kfree_skb_any(skb); + continue; + } + + /* Scatter/Gather */ + shinfo = skb_shinfo(skb); + frags = shinfo->nr_frags; + compl_sg++; + + dma_unmap_single(iq->dev, tx_buffer->sglist[0].dma_ptr[0], + tx_buffer->sglist[0].len[3], DMA_TO_DEVICE); + + i = 1; /* entry 0 is main skb, unmapped above */ + while (frags--) { + dma_unmap_page(iq->dev, tx_buffer->sglist[i >> 2].dma_ptr[i & 3], + tx_buffer->sglist[i >> 2].len[3 - (i & 3)], DMA_TO_DEVICE); + i++; + } + + dev_kfree_skb_any(skb); + } + + iq->pkts_processed += compl_pkts; + atomic_sub(compl_pkts, &iq->instr_pending); + iq->stats.instr_completed += compl_pkts; + iq->stats.bytes_sent += compl_bytes; + iq->stats.sgentry_sent += compl_sg; + iq->flush_index = fi; + + netdev_tx_completed_queue(iq->netdev_q, compl_pkts, compl_bytes); + + if (unlikely(__netif_subqueue_stopped(iq->netdev, iq->q_no)) && + ((iq->max_count - atomic_read(&iq->instr_pending)) > + OCTEP_WAKE_QUEUE_THRESHOLD)) + netif_wake_subqueue(iq->netdev, iq->q_no); + return !budget; +} + +/** + * octep_iq_free_pending() - Free Tx buffers for pending completions. + * + * @iq: Octeon Tx queue data structure. + */ +static void octep_iq_free_pending(struct octep_iq *iq) +{ + struct octep_tx_buffer *tx_buffer; + struct skb_shared_info *shinfo; + u32 fi = iq->flush_index; + struct sk_buff *skb; + u8 frags, i; + + while (fi != iq->host_write_index) { + tx_buffer = iq->buff_info + fi; + skb = tx_buffer->skb; + + fi++; + if (unlikely(fi == iq->max_count)) + fi = 0; + + if (!tx_buffer->gather) { + dma_unmap_single(iq->dev, tx_buffer->dma, + tx_buffer->skb->len, DMA_TO_DEVICE); + dev_kfree_skb_any(skb); + continue; + } + + /* Scatter/Gather */ + shinfo = skb_shinfo(skb); + frags = shinfo->nr_frags; + + dma_unmap_single(iq->dev, + tx_buffer->sglist[0].dma_ptr[0], + tx_buffer->sglist[0].len[3], + DMA_TO_DEVICE); + + i = 1; /* entry 0 is main skb, unmapped above */ + while (frags--) { + dma_unmap_page(iq->dev, tx_buffer->sglist[i >> 2].dma_ptr[i & 3], + tx_buffer->sglist[i >> 2].len[3 - (i & 3)], DMA_TO_DEVICE); + i++; + } + + dev_kfree_skb_any(skb); + } + + atomic_set(&iq->instr_pending, 0); + iq->flush_index = fi; + netdev_tx_reset_queue(netdev_get_tx_queue(iq->netdev, iq->q_no)); +} + +/** + * octep_clean_iqs() - Clean Tx queues to shutdown the device. + * + * @oct: Octeon device private data structure. + * + * Free the buffers in Tx queue descriptors pending completion and + * reset queue indices + */ +void octep_clean_iqs(struct octep_device *oct) +{ + int i; + + for (i = 0; i < oct->num_iqs; i++) { + octep_iq_free_pending(oct->iq[i]); + octep_iq_reset_indices(oct->iq[i]); + } +} + +/** + * octep_setup_iq() - Setup a Tx queue. + * + * @oct: Octeon device private data structure. + * @q_no: Tx queue number to be setup. + * + * Allocate resources for a Tx queue. + */ +static int octep_setup_iq(struct octep_device *oct, int q_no) +{ + u32 desc_ring_size, buff_info_size, sglist_size; + struct octep_iq *iq; + int i; + + iq = vzalloc(sizeof(*iq)); + if (!iq) + goto iq_alloc_err; + oct->iq[q_no] = iq; + + iq->octep_dev = oct; + iq->netdev = oct->netdev; + iq->dev = &oct->pdev->dev; + iq->q_no = q_no; + iq->max_count = CFG_GET_IQ_NUM_DESC(oct->conf); + iq->ring_size_mask = iq->max_count - 1; + iq->fill_threshold = CFG_GET_IQ_DB_MIN(oct->conf); + iq->netdev_q = netdev_get_tx_queue(iq->netdev, q_no); + + /* Allocate memory for hardware queue descriptors */ + desc_ring_size = OCTEP_IQ_DESC_SIZE * CFG_GET_IQ_NUM_DESC(oct->conf); + iq->desc_ring = dma_alloc_coherent(iq->dev, desc_ring_size, + &iq->desc_ring_dma, GFP_KERNEL); + if (unlikely(!iq->desc_ring)) { + dev_err(iq->dev, + "Failed to allocate DMA memory for IQ-%d\n", q_no); + goto desc_dma_alloc_err; + } + + /* Allocate memory for hardware SGLIST descriptors */ + sglist_size = OCTEP_SGLIST_SIZE_PER_PKT * + CFG_GET_IQ_NUM_DESC(oct->conf); + iq->sglist = dma_alloc_coherent(iq->dev, sglist_size, + &iq->sglist_dma, GFP_KERNEL); + if (unlikely(!iq->sglist)) { + dev_err(iq->dev, + "Failed to allocate DMA memory for IQ-%d SGLIST\n", + q_no); + goto sglist_alloc_err; + } + + /* allocate memory to manage Tx packets pending completion */ + buff_info_size = OCTEP_IQ_TXBUFF_INFO_SIZE * iq->max_count; + iq->buff_info = vzalloc(buff_info_size); + if (!iq->buff_info) { + dev_err(iq->dev, + "Failed to allocate buff info for IQ-%d\n", q_no); + goto buff_info_err; + } + + /* Setup sglist addresses in tx_buffer entries */ + for (i = 0; i < CFG_GET_IQ_NUM_DESC(oct->conf); i++) { + struct octep_tx_buffer *tx_buffer; + + tx_buffer = &iq->buff_info[i]; + tx_buffer->sglist = + &iq->sglist[i * OCTEP_SGLIST_ENTRIES_PER_PKT]; + tx_buffer->sglist_dma = + iq->sglist_dma + (i * OCTEP_SGLIST_SIZE_PER_PKT); + } + + octep_iq_reset_indices(iq); + oct->hw_ops.setup_iq_regs(oct, q_no); + + oct->num_iqs++; + return 0; + +buff_info_err: + dma_free_coherent(iq->dev, sglist_size, iq->sglist, iq->sglist_dma); +sglist_alloc_err: + dma_free_coherent(iq->dev, desc_ring_size, + iq->desc_ring, iq->desc_ring_dma); +desc_dma_alloc_err: + vfree(iq); + oct->iq[q_no] = NULL; +iq_alloc_err: + return -1; +} + +/** + * octep_free_iq() - Free Tx queue resources. + * + * @iq: Octeon Tx queue data structure. + * + * Free all the resources allocated for a Tx queue. + */ +static void octep_free_iq(struct octep_iq *iq) +{ + struct octep_device *oct = iq->octep_dev; + u64 desc_ring_size, sglist_size; + int q_no = iq->q_no; + + desc_ring_size = OCTEP_IQ_DESC_SIZE * CFG_GET_IQ_NUM_DESC(oct->conf); + + vfree(iq->buff_info); + + if (iq->desc_ring) + dma_free_coherent(iq->dev, desc_ring_size, + iq->desc_ring, iq->desc_ring_dma); + + sglist_size = OCTEP_SGLIST_SIZE_PER_PKT * + CFG_GET_IQ_NUM_DESC(oct->conf); + if (iq->sglist) + dma_free_coherent(iq->dev, sglist_size, + iq->sglist, iq->sglist_dma); + + vfree(iq); + oct->iq[q_no] = NULL; + oct->num_iqs--; +} + +/** + * octep_setup_iqs() - setup resources for all Tx queues. + * + * @oct: Octeon device private data structure. + */ +int octep_setup_iqs(struct octep_device *oct) +{ + int i; + + oct->num_iqs = 0; + for (i = 0; i < CFG_GET_PORTS_ACTIVE_IO_RINGS(oct->conf); i++) { + if (octep_setup_iq(oct, i)) { + dev_err(&oct->pdev->dev, + "Failed to setup IQ(TxQ)-%d.\n", i); + goto iq_setup_err; + } + dev_dbg(&oct->pdev->dev, "Successfully setup IQ(TxQ)-%d.\n", i); + } + + return 0; + +iq_setup_err: + while (i) { + i--; + octep_free_iq(oct->iq[i]); + } + return -1; +} + +/** + * octep_free_iqs() - Free resources of all Tx queues. + * + * @oct: Octeon device private data structure. + */ +void octep_free_iqs(struct octep_device *oct) +{ + int i; + + for (i = 0; i < CFG_GET_PORTS_ACTIVE_IO_RINGS(oct->conf); i++) { + octep_free_iq(oct->iq[i]); + dev_dbg(&oct->pdev->dev, + "Successfully destroyed IQ(TxQ)-%d.\n", i); + } + oct->num_iqs = 0; +} diff --git a/drivers/net/ethernet/marvell/octeon_ep/octep_tx.h b/drivers/net/ethernet/marvell/octeon_ep/octep_tx.h new file mode 100644 index 000000000..21e75ff9f --- /dev/null +++ b/drivers/net/ethernet/marvell/octeon_ep/octep_tx.h @@ -0,0 +1,298 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* Marvell Octeon EP (EndPoint) Ethernet Driver + * + * Copyright (C) 2020 Marvell. + * + */ + +#ifndef _OCTEP_TX_H_ +#define _OCTEP_TX_H_ + +#define IQ_SEND_OK 0 +#define IQ_SEND_STOP 1 +#define IQ_SEND_FAILED -1 + +#define TX_BUFTYPE_NONE 0 +#define TX_BUFTYPE_NET 1 +#define TX_BUFTYPE_NET_SG 2 +#define NUM_TX_BUFTYPES 3 + +/* Hardware format for Scatter/Gather list + * + * 63 48|47 32|31 16|15 0 + * ----------------------------------------- + * | Len 0 | Len 1 | Len 2 | Len 3 | + * ----------------------------------------- + * | Ptr 0 | + * ----------------------------------------- + * | Ptr 1 | + * ----------------------------------------- + * | Ptr 2 | + * ----------------------------------------- + * | Ptr 3 | + * ----------------------------------------- + */ +struct octep_tx_sglist_desc { + u16 len[4]; + dma_addr_t dma_ptr[4]; +}; + +/* Each Scatter/Gather entry sent to hardwar hold four pointers. + * So, number of entries required is (MAX_SKB_FRAGS + 1)/4, where '+1' + * is for main skb which also goes as a gather buffer to Octeon hardware. + * To allocate sufficient SGLIST entries for a packet with max fragments, + * align by adding 3 before calcuating max SGLIST entries per packet. + */ +#define OCTEP_SGLIST_ENTRIES_PER_PKT ((MAX_SKB_FRAGS + 1 + 3) / 4) +#define OCTEP_SGLIST_SIZE_PER_PKT \ + (OCTEP_SGLIST_ENTRIES_PER_PKT * sizeof(struct octep_tx_sglist_desc)) + +struct octep_tx_buffer { + struct sk_buff *skb; + dma_addr_t dma; + struct octep_tx_sglist_desc *sglist; + dma_addr_t sglist_dma; + u8 gather; +}; + +#define OCTEP_IQ_TXBUFF_INFO_SIZE (sizeof(struct octep_tx_buffer)) + +/* Hardware interface Tx statistics */ +struct octep_iface_tx_stats { + /* Packets dropped due to excessive collisions */ + u64 xscol; + + /* Packets dropped due to excessive deferral */ + u64 xsdef; + + /* Packets sent that experienced multiple collisions before successful + * transmission + */ + u64 mcol; + + /* Packets sent that experienced a single collision before successful + * transmission + */ + u64 scol; + + /* Total octets sent on the interface */ + u64 octs; + + /* Total frames sent on the interface */ + u64 pkts; + + /* Packets sent with an octet count < 64 */ + u64 hist_lt64; + + /* Packets sent with an octet count == 64 */ + u64 hist_eq64; + + /* Packets sent with an octet count of 65–127 */ + u64 hist_65to127; + + /* Packets sent with an octet count of 128–255 */ + u64 hist_128to255; + + /* Packets sent with an octet count of 256–511 */ + u64 hist_256to511; + + /* Packets sent with an octet count of 512–1023 */ + u64 hist_512to1023; + + /* Packets sent with an octet count of 1024-1518 */ + u64 hist_1024to1518; + + /* Packets sent with an octet count of > 1518 */ + u64 hist_gt1518; + + /* Packets sent to a broadcast DMAC */ + u64 bcst; + + /* Packets sent to the multicast DMAC */ + u64 mcst; + + /* Packets sent that experienced a transmit underflow and were + * truncated + */ + u64 undflw; + + /* Control/PAUSE packets sent */ + u64 ctl; +}; + +/* Input Queue statistics. Each input queue has four stats fields. */ +struct octep_iq_stats { + /* Instructions posted to this queue. */ + u64 instr_posted; + + /* Instructions copied by hardware for processing. */ + u64 instr_completed; + + /* Instructions that could not be processed. */ + u64 instr_dropped; + + /* Bytes sent through this queue. */ + u64 bytes_sent; + + /* Gather entries sent through this queue. */ + u64 sgentry_sent; + + /* Number of transmit failures due to TX_BUSY */ + u64 tx_busy; + + /* Number of times the queue is restarted */ + u64 restart_cnt; +}; + +/* The instruction (input) queue. + * The input queue is used to post raw (instruction) mode data or packet + * data to Octeon device from the host. Each input queue (up to 4) for + * a Octeon device has one such structure to represent it. + */ +struct octep_iq { + u32 q_no; + + struct octep_device *octep_dev; + struct net_device *netdev; + struct device *dev; + struct netdev_queue *netdev_q; + + /* Index in input ring where driver should write the next packet */ + u16 host_write_index; + + /* Index in input ring where Octeon is expected to read next packet */ + u16 octep_read_index; + + /* This index aids in finding the window in the queue where Octeon + * has read the commands. + */ + u16 flush_index; + + /* Statistics for this input queue. */ + struct octep_iq_stats stats; + + /* This field keeps track of the instructions pending in this queue. */ + atomic_t instr_pending; + + /* Pointer to the Virtual Base addr of the input ring. */ + struct octep_tx_desc_hw *desc_ring; + + /* DMA mapped base address of the input descriptor ring. */ + dma_addr_t desc_ring_dma; + + /* Info of Tx buffers pending completion. */ + struct octep_tx_buffer *buff_info; + + /* Base pointer to Scatter/Gather lists for all ring descriptors. */ + struct octep_tx_sglist_desc *sglist; + + /* DMA mapped addr of Scatter Gather Lists */ + dma_addr_t sglist_dma; + + /* Octeon doorbell register for the ring. */ + u8 __iomem *doorbell_reg; + + /* Octeon instruction count register for this ring. */ + u8 __iomem *inst_cnt_reg; + + /* interrupt level register for this ring */ + u8 __iomem *intr_lvl_reg; + + /* Maximum no. of instructions in this queue. */ + u32 max_count; + u32 ring_size_mask; + + u32 pkt_in_done; + u32 pkts_processed; + + u32 status; + + /* Number of instructions pending to be posted to Octeon. */ + u32 fill_cnt; + + /* The max. number of instructions that can be held pending by the + * driver before ringing doorbell. + */ + u32 fill_threshold; +}; + +/* Hardware Tx Instruction Header */ +struct octep_instr_hdr { + /* Data Len */ + u64 tlen:16; + + /* Reserved */ + u64 rsvd:20; + + /* PKIND for SDP */ + u64 pkind:6; + + /* Front Data size */ + u64 fsz:6; + + /* No. of entries in gather list */ + u64 gsz:14; + + /* Gather indicator 1=gather*/ + u64 gather:1; + + /* Reserved3 */ + u64 reserved3:1; +}; + +/* Hardware Tx completion response header */ +struct octep_instr_resp_hdr { + /* Request ID */ + u64 rid:16; + + /* PCIe port to use for response */ + u64 pcie_port:3; + + /* Scatter indicator 1=scatter */ + u64 scatter:1; + + /* Size of Expected result OR no. of entries in scatter list */ + u64 rlenssz:14; + + /* Desired destination port for result */ + u64 dport:6; + + /* Opcode Specific parameters */ + u64 param:8; + + /* Opcode for the return packet */ + u64 opcode:16; +}; + +/* 64-byte Tx instruction format. + * Format of instruction for a 64-byte mode input queue. + * + * only first 16-bytes (dptr and ih) are mandatory; rest are optional + * and filled by the driver based on firmware/hardware capabilities. + * These optional headers together called Front Data and its size is + * described by ih->fsz. + */ +struct octep_tx_desc_hw { + /* Pointer where the input data is available. */ + u64 dptr; + + /* Instruction Header. */ + union { + struct octep_instr_hdr ih; + u64 ih64; + }; + + /* Pointer where the response for a RAW mode packet will be written + * by Octeon. + */ + u64 rptr; + + /* Input Instruction Response Header. */ + struct octep_instr_resp_hdr irh; + + /* Additional headers available in a 64-byte instruction. */ + u64 exhdr[4]; +}; + +#define OCTEP_IQ_DESC_SIZE (sizeof(struct octep_tx_desc_hw)) +#endif /* _OCTEP_TX_H_ */ diff --git a/drivers/net/ethernet/marvell/octeontx2/Kconfig b/drivers/net/ethernet/marvell/octeontx2/Kconfig new file mode 100644 index 000000000..993ac180a --- /dev/null +++ b/drivers/net/ethernet/marvell/octeontx2/Kconfig @@ -0,0 +1,47 @@ +# SPDX-License-Identifier: GPL-2.0-only +# +# Marvell RVU Network drivers configuration +# + +config OCTEONTX2_MBOX + tristate + +config OCTEONTX2_AF + tristate "Marvell OcteonTX2 RVU Admin Function driver" + select OCTEONTX2_MBOX + select NET_DEVLINK + depends on (64BIT && COMPILE_TEST) || ARM64 + depends on PCI + depends on PTP_1588_CLOCK_OPTIONAL + help + This driver supports Marvell's OcteonTX2 Resource Virtualization + Unit's admin function manager which manages all RVU HW resources + and provides a medium to other PF/VFs to configure HW. Should be + enabled for other RVU device drivers to work. + +config NDC_DIS_DYNAMIC_CACHING + bool "Disable caching of dynamic entries in NDC" + depends on OCTEONTX2_AF + default n + help + This config option disables caching of dynamic entries such as NIX SQEs + , NPA stack pages etc in NDC. Also locks down NIX SQ/CQ/RQ/RSS and + NPA Aura/Pool contexts. + +config OCTEONTX2_PF + tristate "Marvell OcteonTX2 NIC Physical Function driver" + select OCTEONTX2_MBOX + select NET_DEVLINK + depends on (64BIT && COMPILE_TEST) || ARM64 + select DIMLIB + depends on PCI + depends on PTP_1588_CLOCK_OPTIONAL + depends on MACSEC || !MACSEC + help + This driver supports Marvell's OcteonTX2 NIC physical function. + +config OCTEONTX2_VF + tristate "Marvell OcteonTX2 NIC Virtual Function driver" + depends on OCTEONTX2_PF + help + This driver supports Marvell's OcteonTX2 NIC virtual function. diff --git a/drivers/net/ethernet/marvell/octeontx2/Makefile b/drivers/net/ethernet/marvell/octeontx2/Makefile new file mode 100644 index 000000000..0064a69e0 --- /dev/null +++ b/drivers/net/ethernet/marvell/octeontx2/Makefile @@ -0,0 +1,8 @@ +# SPDX-License-Identifier: GPL-2.0 +# +# Makefile for Marvell OcteonTX2 device drivers. +# + +obj-$(CONFIG_OCTEONTX2_MBOX) += af/ +obj-$(CONFIG_OCTEONTX2_AF) += af/ +obj-$(CONFIG_OCTEONTX2_PF) += nic/ diff --git a/drivers/net/ethernet/marvell/octeontx2/af/Makefile b/drivers/net/ethernet/marvell/octeontx2/af/Makefile new file mode 100644 index 000000000..3cf4c8285 --- /dev/null +++ b/drivers/net/ethernet/marvell/octeontx2/af/Makefile @@ -0,0 +1,14 @@ +# SPDX-License-Identifier: GPL-2.0 +# +# Makefile for Marvell's RVU Admin Function driver +# + +ccflags-y += -I$(src) +obj-$(CONFIG_OCTEONTX2_MBOX) += rvu_mbox.o +obj-$(CONFIG_OCTEONTX2_AF) += rvu_af.o + +rvu_mbox-y := mbox.o rvu_trace.o +rvu_af-y := cgx.o rvu.o rvu_cgx.o rvu_npa.o rvu_nix.o \ + rvu_reg.o rvu_npc.o rvu_debugfs.o ptp.o rvu_npc_fs.o \ + rvu_cpt.o rvu_devlink.o rpm.o rvu_cn10k.o rvu_switch.o \ + rvu_sdp.o rvu_npc_hash.o mcs.o mcs_rvu_if.o mcs_cnf10kb.o diff --git a/drivers/net/ethernet/marvell/octeontx2/af/cgx.c b/drivers/net/ethernet/marvell/octeontx2/af/cgx.c new file mode 100644 index 000000000..90be87dc1 --- /dev/null +++ b/drivers/net/ethernet/marvell/octeontx2/af/cgx.c @@ -0,0 +1,1870 @@ +// SPDX-License-Identifier: GPL-2.0 +/* Marvell OcteonTx2 CGX driver + * + * Copyright (C) 2018 Marvell. + * + */ + +#include <linux/acpi.h> +#include <linux/module.h> +#include <linux/interrupt.h> +#include <linux/pci.h> +#include <linux/netdevice.h> +#include <linux/etherdevice.h> +#include <linux/ethtool.h> +#include <linux/phy.h> +#include <linux/of.h> +#include <linux/of_mdio.h> +#include <linux/of_net.h> + +#include "cgx.h" +#include "rvu.h" +#include "lmac_common.h" + +#define DRV_NAME "Marvell-CGX/RPM" +#define DRV_STRING "Marvell CGX/RPM Driver" + +static LIST_HEAD(cgx_list); + +/* Convert firmware speed encoding to user format(Mbps) */ +static const u32 cgx_speed_mbps[CGX_LINK_SPEED_MAX] = { + [CGX_LINK_NONE] = 0, + [CGX_LINK_10M] = 10, + [CGX_LINK_100M] = 100, + [CGX_LINK_1G] = 1000, + [CGX_LINK_2HG] = 2500, + [CGX_LINK_5G] = 5000, + [CGX_LINK_10G] = 10000, + [CGX_LINK_20G] = 20000, + [CGX_LINK_25G] = 25000, + [CGX_LINK_40G] = 40000, + [CGX_LINK_50G] = 50000, + [CGX_LINK_80G] = 80000, + [CGX_LINK_100G] = 100000, +}; + +/* Convert firmware lmac type encoding to string */ +static const char *cgx_lmactype_string[LMAC_MODE_MAX] = { + [LMAC_MODE_SGMII] = "SGMII", + [LMAC_MODE_XAUI] = "XAUI", + [LMAC_MODE_RXAUI] = "RXAUI", + [LMAC_MODE_10G_R] = "10G_R", + [LMAC_MODE_40G_R] = "40G_R", + [LMAC_MODE_QSGMII] = "QSGMII", + [LMAC_MODE_25G_R] = "25G_R", + [LMAC_MODE_50G_R] = "50G_R", + [LMAC_MODE_100G_R] = "100G_R", + [LMAC_MODE_USXGMII] = "USXGMII", +}; + +/* CGX PHY management internal APIs */ +static int cgx_fwi_link_change(struct cgx *cgx, int lmac_id, bool en); + +/* Supported devices */ +static const struct pci_device_id cgx_id_table[] = { + { PCI_DEVICE(PCI_VENDOR_ID_CAVIUM, PCI_DEVID_OCTEONTX2_CGX) }, + { PCI_DEVICE(PCI_VENDOR_ID_CAVIUM, PCI_DEVID_CN10K_RPM) }, + { 0, } /* end of table */ +}; + +MODULE_DEVICE_TABLE(pci, cgx_id_table); + +static bool is_dev_rpm(void *cgxd) +{ + struct cgx *cgx = cgxd; + + return (cgx->pdev->device == PCI_DEVID_CN10K_RPM); +} + +bool is_lmac_valid(struct cgx *cgx, int lmac_id) +{ + if (!cgx || lmac_id < 0 || lmac_id >= cgx->max_lmac_per_mac) + return false; + return test_bit(lmac_id, &cgx->lmac_bmap); +} + +/* Helper function to get sequential index + * given the enabled LMAC of a CGX + */ +static int get_sequence_id_of_lmac(struct cgx *cgx, int lmac_id) +{ + int tmp, id = 0; + + for_each_set_bit(tmp, &cgx->lmac_bmap, cgx->max_lmac_per_mac) { + if (tmp == lmac_id) + break; + id++; + } + + return id; +} + +struct mac_ops *get_mac_ops(void *cgxd) +{ + if (!cgxd) + return cgxd; + + return ((struct cgx *)cgxd)->mac_ops; +} + +void cgx_write(struct cgx *cgx, u64 lmac, u64 offset, u64 val) +{ + writeq(val, cgx->reg_base + (lmac << cgx->mac_ops->lmac_offset) + + offset); +} + +u64 cgx_read(struct cgx *cgx, u64 lmac, u64 offset) +{ + return readq(cgx->reg_base + (lmac << cgx->mac_ops->lmac_offset) + + offset); +} + +struct lmac *lmac_pdata(u8 lmac_id, struct cgx *cgx) +{ + if (!cgx || lmac_id >= cgx->max_lmac_per_mac) + return NULL; + + return cgx->lmac_idmap[lmac_id]; +} + +int cgx_get_cgxcnt_max(void) +{ + struct cgx *cgx_dev; + int idmax = -ENODEV; + + list_for_each_entry(cgx_dev, &cgx_list, cgx_list) + if (cgx_dev->cgx_id > idmax) + idmax = cgx_dev->cgx_id; + + if (idmax < 0) + return 0; + + return idmax + 1; +} + +int cgx_get_lmac_cnt(void *cgxd) +{ + struct cgx *cgx = cgxd; + + if (!cgx) + return -ENODEV; + + return cgx->lmac_count; +} + +void *cgx_get_pdata(int cgx_id) +{ + struct cgx *cgx_dev; + + list_for_each_entry(cgx_dev, &cgx_list, cgx_list) { + if (cgx_dev->cgx_id == cgx_id) + return cgx_dev; + } + return NULL; +} + +void cgx_lmac_write(int cgx_id, int lmac_id, u64 offset, u64 val) +{ + struct cgx *cgx_dev = cgx_get_pdata(cgx_id); + + /* Software must not access disabled LMAC registers */ + if (!is_lmac_valid(cgx_dev, lmac_id)) + return; + cgx_write(cgx_dev, lmac_id, offset, val); +} + +u64 cgx_lmac_read(int cgx_id, int lmac_id, u64 offset) +{ + struct cgx *cgx_dev = cgx_get_pdata(cgx_id); + + /* Software must not access disabled LMAC registers */ + if (!is_lmac_valid(cgx_dev, lmac_id)) + return 0; + + return cgx_read(cgx_dev, lmac_id, offset); +} + +int cgx_get_cgxid(void *cgxd) +{ + struct cgx *cgx = cgxd; + + if (!cgx) + return -EINVAL; + + return cgx->cgx_id; +} + +u8 cgx_lmac_get_p2x(int cgx_id, int lmac_id) +{ + struct cgx *cgx_dev = cgx_get_pdata(cgx_id); + u64 cfg; + + cfg = cgx_read(cgx_dev, lmac_id, CGXX_CMRX_CFG); + + return (cfg & CMR_P2X_SEL_MASK) >> CMR_P2X_SEL_SHIFT; +} + +/* Ensure the required lock for event queue(where asynchronous events are + * posted) is acquired before calling this API. Else an asynchronous event(with + * latest link status) can reach the destination before this function returns + * and could make the link status appear wrong. + */ +int cgx_get_link_info(void *cgxd, int lmac_id, + struct cgx_link_user_info *linfo) +{ + struct lmac *lmac = lmac_pdata(lmac_id, cgxd); + + if (!lmac) + return -ENODEV; + + *linfo = lmac->link_info; + return 0; +} + +static u64 mac2u64 (u8 *mac_addr) +{ + u64 mac = 0; + int index; + + for (index = ETH_ALEN - 1; index >= 0; index--) + mac |= ((u64)*mac_addr++) << (8 * index); + return mac; +} + +static void cfg2mac(u64 cfg, u8 *mac_addr) +{ + int i, index = 0; + + for (i = ETH_ALEN - 1; i >= 0; i--, index++) + mac_addr[i] = (cfg >> (8 * index)) & 0xFF; +} + +int cgx_lmac_addr_set(u8 cgx_id, u8 lmac_id, u8 *mac_addr) +{ + struct cgx *cgx_dev = cgx_get_pdata(cgx_id); + struct lmac *lmac = lmac_pdata(lmac_id, cgx_dev); + struct mac_ops *mac_ops; + int index, id; + u64 cfg; + + /* access mac_ops to know csr_offset */ + mac_ops = cgx_dev->mac_ops; + + /* copy 6bytes from macaddr */ + /* memcpy(&cfg, mac_addr, 6); */ + + cfg = mac2u64 (mac_addr); + + id = get_sequence_id_of_lmac(cgx_dev, lmac_id); + + index = id * lmac->mac_to_index_bmap.max; + + cgx_write(cgx_dev, 0, (CGXX_CMRX_RX_DMAC_CAM0 + (index * 0x8)), + cfg | CGX_DMAC_CAM_ADDR_ENABLE | ((u64)lmac_id << 49)); + + cfg = cgx_read(cgx_dev, lmac_id, CGXX_CMRX_RX_DMAC_CTL0); + cfg |= (CGX_DMAC_CTL0_CAM_ENABLE | CGX_DMAC_BCAST_MODE | + CGX_DMAC_MCAST_MODE); + cgx_write(cgx_dev, lmac_id, CGXX_CMRX_RX_DMAC_CTL0, cfg); + + return 0; +} + +u64 cgx_read_dmac_ctrl(void *cgxd, int lmac_id) +{ + struct mac_ops *mac_ops; + struct cgx *cgx = cgxd; + + if (!cgxd || !is_lmac_valid(cgxd, lmac_id)) + return 0; + + cgx = cgxd; + /* Get mac_ops to know csr offset */ + mac_ops = cgx->mac_ops; + + return cgx_read(cgxd, lmac_id, CGXX_CMRX_RX_DMAC_CTL0); +} + +u64 cgx_read_dmac_entry(void *cgxd, int index) +{ + struct mac_ops *mac_ops; + struct cgx *cgx; + + if (!cgxd) + return 0; + + cgx = cgxd; + mac_ops = cgx->mac_ops; + return cgx_read(cgx, 0, (CGXX_CMRX_RX_DMAC_CAM0 + (index * 8))); +} + +int cgx_lmac_addr_add(u8 cgx_id, u8 lmac_id, u8 *mac_addr) +{ + struct cgx *cgx_dev = cgx_get_pdata(cgx_id); + struct lmac *lmac = lmac_pdata(lmac_id, cgx_dev); + struct mac_ops *mac_ops; + int index, idx; + u64 cfg = 0; + int id; + + if (!lmac) + return -ENODEV; + + mac_ops = cgx_dev->mac_ops; + /* Get available index where entry is to be installed */ + idx = rvu_alloc_rsrc(&lmac->mac_to_index_bmap); + if (idx < 0) + return idx; + + id = get_sequence_id_of_lmac(cgx_dev, lmac_id); + + index = id * lmac->mac_to_index_bmap.max + idx; + + cfg = mac2u64 (mac_addr); + cfg |= CGX_DMAC_CAM_ADDR_ENABLE; + cfg |= ((u64)lmac_id << 49); + cgx_write(cgx_dev, 0, (CGXX_CMRX_RX_DMAC_CAM0 + (index * 0x8)), cfg); + + cfg = cgx_read(cgx_dev, lmac_id, CGXX_CMRX_RX_DMAC_CTL0); + cfg |= (CGX_DMAC_BCAST_MODE | CGX_DMAC_CAM_ACCEPT); + + if (is_multicast_ether_addr(mac_addr)) { + cfg &= ~GENMASK_ULL(2, 1); + cfg |= CGX_DMAC_MCAST_MODE_CAM; + lmac->mcast_filters_count++; + } else if (!lmac->mcast_filters_count) { + cfg |= CGX_DMAC_MCAST_MODE; + } + + cgx_write(cgx_dev, lmac_id, CGXX_CMRX_RX_DMAC_CTL0, cfg); + + return idx; +} + +int cgx_lmac_addr_reset(u8 cgx_id, u8 lmac_id) +{ + struct cgx *cgx_dev = cgx_get_pdata(cgx_id); + struct lmac *lmac = lmac_pdata(lmac_id, cgx_dev); + struct mac_ops *mac_ops; + u8 index = 0, id; + u64 cfg; + + if (!lmac) + return -ENODEV; + + mac_ops = cgx_dev->mac_ops; + /* Restore index 0 to its default init value as done during + * cgx_lmac_init + */ + set_bit(0, lmac->mac_to_index_bmap.bmap); + + id = get_sequence_id_of_lmac(cgx_dev, lmac_id); + + index = id * lmac->mac_to_index_bmap.max + index; + cgx_write(cgx_dev, 0, (CGXX_CMRX_RX_DMAC_CAM0 + (index * 0x8)), 0); + + /* Reset CGXX_CMRX_RX_DMAC_CTL0 register to default state */ + cfg = cgx_read(cgx_dev, lmac_id, CGXX_CMRX_RX_DMAC_CTL0); + cfg &= ~CGX_DMAC_CAM_ACCEPT; + cfg |= (CGX_DMAC_BCAST_MODE | CGX_DMAC_MCAST_MODE); + cgx_write(cgx_dev, lmac_id, CGXX_CMRX_RX_DMAC_CTL0, cfg); + + return 0; +} + +/* Allows caller to change macaddress associated with index + * in dmac filter table including index 0 reserved for + * interface mac address + */ +int cgx_lmac_addr_update(u8 cgx_id, u8 lmac_id, u8 *mac_addr, u8 index) +{ + struct cgx *cgx_dev = cgx_get_pdata(cgx_id); + struct mac_ops *mac_ops; + struct lmac *lmac; + u64 cfg; + int id; + + lmac = lmac_pdata(lmac_id, cgx_dev); + if (!lmac) + return -ENODEV; + + mac_ops = cgx_dev->mac_ops; + /* Validate the index */ + if (index >= lmac->mac_to_index_bmap.max) + return -EINVAL; + + /* ensure index is already set */ + if (!test_bit(index, lmac->mac_to_index_bmap.bmap)) + return -EINVAL; + + id = get_sequence_id_of_lmac(cgx_dev, lmac_id); + + index = id * lmac->mac_to_index_bmap.max + index; + + cfg = cgx_read(cgx_dev, 0, (CGXX_CMRX_RX_DMAC_CAM0 + (index * 0x8))); + cfg &= ~CGX_RX_DMAC_ADR_MASK; + cfg |= mac2u64 (mac_addr); + + cgx_write(cgx_dev, 0, (CGXX_CMRX_RX_DMAC_CAM0 + (index * 0x8)), cfg); + return 0; +} + +int cgx_lmac_addr_del(u8 cgx_id, u8 lmac_id, u8 index) +{ + struct cgx *cgx_dev = cgx_get_pdata(cgx_id); + struct lmac *lmac = lmac_pdata(lmac_id, cgx_dev); + struct mac_ops *mac_ops; + u8 mac[ETH_ALEN]; + u64 cfg; + int id; + + if (!lmac) + return -ENODEV; + + mac_ops = cgx_dev->mac_ops; + /* Validate the index */ + if (index >= lmac->mac_to_index_bmap.max) + return -EINVAL; + + /* Skip deletion for reserved index i.e. index 0 */ + if (index == 0) + return 0; + + rvu_free_rsrc(&lmac->mac_to_index_bmap, index); + + id = get_sequence_id_of_lmac(cgx_dev, lmac_id); + + index = id * lmac->mac_to_index_bmap.max + index; + + /* Read MAC address to check whether it is ucast or mcast */ + cfg = cgx_read(cgx_dev, 0, (CGXX_CMRX_RX_DMAC_CAM0 + (index * 0x8))); + + cfg2mac(cfg, mac); + if (is_multicast_ether_addr(mac)) + lmac->mcast_filters_count--; + + if (!lmac->mcast_filters_count) { + cfg = cgx_read(cgx_dev, lmac_id, CGXX_CMRX_RX_DMAC_CTL0); + cfg &= ~GENMASK_ULL(2, 1); + cfg |= CGX_DMAC_MCAST_MODE; + cgx_write(cgx_dev, lmac_id, CGXX_CMRX_RX_DMAC_CTL0, cfg); + } + + cgx_write(cgx_dev, 0, (CGXX_CMRX_RX_DMAC_CAM0 + (index * 0x8)), 0); + + return 0; +} + +int cgx_lmac_addr_max_entries_get(u8 cgx_id, u8 lmac_id) +{ + struct cgx *cgx_dev = cgx_get_pdata(cgx_id); + struct lmac *lmac = lmac_pdata(lmac_id, cgx_dev); + + if (lmac) + return lmac->mac_to_index_bmap.max; + + return 0; +} + +u64 cgx_lmac_addr_get(u8 cgx_id, u8 lmac_id) +{ + struct cgx *cgx_dev = cgx_get_pdata(cgx_id); + struct lmac *lmac = lmac_pdata(lmac_id, cgx_dev); + struct mac_ops *mac_ops; + int index; + u64 cfg; + int id; + + mac_ops = cgx_dev->mac_ops; + + id = get_sequence_id_of_lmac(cgx_dev, lmac_id); + + index = id * lmac->mac_to_index_bmap.max; + + cfg = cgx_read(cgx_dev, 0, CGXX_CMRX_RX_DMAC_CAM0 + index * 0x8); + return cfg & CGX_RX_DMAC_ADR_MASK; +} + +int cgx_set_pkind(void *cgxd, u8 lmac_id, int pkind) +{ + struct cgx *cgx = cgxd; + + if (!is_lmac_valid(cgx, lmac_id)) + return -ENODEV; + + cgx_write(cgx, lmac_id, CGXX_CMRX_RX_ID_MAP, (pkind & 0x3F)); + return 0; +} + +static u8 cgx_get_lmac_type(void *cgxd, int lmac_id) +{ + struct cgx *cgx = cgxd; + u64 cfg; + + cfg = cgx_read(cgx, lmac_id, CGXX_CMRX_CFG); + return (cfg >> CGX_LMAC_TYPE_SHIFT) & CGX_LMAC_TYPE_MASK; +} + +static u32 cgx_get_lmac_fifo_len(void *cgxd, int lmac_id) +{ + struct cgx *cgx = cgxd; + u8 num_lmacs; + u32 fifo_len; + + fifo_len = cgx->mac_ops->fifo_len; + num_lmacs = cgx->mac_ops->get_nr_lmacs(cgx); + + switch (num_lmacs) { + case 1: + return fifo_len; + case 2: + return fifo_len / 2; + case 3: + /* LMAC0 gets half of the FIFO, reset 1/4th */ + if (lmac_id == 0) + return fifo_len / 2; + return fifo_len / 4; + case 4: + default: + return fifo_len / 4; + } + return 0; +} + +/* Configure CGX LMAC in internal loopback mode */ +int cgx_lmac_internal_loopback(void *cgxd, int lmac_id, bool enable) +{ + struct cgx *cgx = cgxd; + u8 lmac_type; + u64 cfg; + + if (!is_lmac_valid(cgx, lmac_id)) + return -ENODEV; + + lmac_type = cgx->mac_ops->get_lmac_type(cgx, lmac_id); + if (lmac_type == LMAC_MODE_SGMII || lmac_type == LMAC_MODE_QSGMII) { + cfg = cgx_read(cgx, lmac_id, CGXX_GMP_PCS_MRX_CTL); + if (enable) + cfg |= CGXX_GMP_PCS_MRX_CTL_LBK; + else + cfg &= ~CGXX_GMP_PCS_MRX_CTL_LBK; + cgx_write(cgx, lmac_id, CGXX_GMP_PCS_MRX_CTL, cfg); + } else { + cfg = cgx_read(cgx, lmac_id, CGXX_SPUX_CONTROL1); + if (enable) + cfg |= CGXX_SPUX_CONTROL1_LBK; + else + cfg &= ~CGXX_SPUX_CONTROL1_LBK; + cgx_write(cgx, lmac_id, CGXX_SPUX_CONTROL1, cfg); + } + return 0; +} + +void cgx_lmac_promisc_config(int cgx_id, int lmac_id, bool enable) +{ + struct cgx *cgx = cgx_get_pdata(cgx_id); + struct lmac *lmac = lmac_pdata(lmac_id, cgx); + u16 max_dmac = lmac->mac_to_index_bmap.max; + struct mac_ops *mac_ops; + int index, i; + u64 cfg = 0; + int id; + + if (!cgx) + return; + + id = get_sequence_id_of_lmac(cgx, lmac_id); + + mac_ops = cgx->mac_ops; + if (enable) { + /* Enable promiscuous mode on LMAC */ + cfg = cgx_read(cgx, lmac_id, CGXX_CMRX_RX_DMAC_CTL0); + cfg &= ~CGX_DMAC_CAM_ACCEPT; + cfg |= (CGX_DMAC_BCAST_MODE | CGX_DMAC_MCAST_MODE); + cgx_write(cgx, lmac_id, CGXX_CMRX_RX_DMAC_CTL0, cfg); + + for (i = 0; i < max_dmac; i++) { + index = id * max_dmac + i; + cfg = cgx_read(cgx, 0, + (CGXX_CMRX_RX_DMAC_CAM0 + index * 0x8)); + cfg &= ~CGX_DMAC_CAM_ADDR_ENABLE; + cgx_write(cgx, 0, + (CGXX_CMRX_RX_DMAC_CAM0 + index * 0x8), cfg); + } + } else { + /* Disable promiscuous mode */ + cfg = cgx_read(cgx, lmac_id, CGXX_CMRX_RX_DMAC_CTL0); + cfg |= CGX_DMAC_CAM_ACCEPT | CGX_DMAC_MCAST_MODE; + cgx_write(cgx, lmac_id, CGXX_CMRX_RX_DMAC_CTL0, cfg); + for (i = 0; i < max_dmac; i++) { + index = id * max_dmac + i; + cfg = cgx_read(cgx, 0, + (CGXX_CMRX_RX_DMAC_CAM0 + index * 0x8)); + if ((cfg & CGX_RX_DMAC_ADR_MASK) != 0) { + cfg |= CGX_DMAC_CAM_ADDR_ENABLE; + cgx_write(cgx, 0, + (CGXX_CMRX_RX_DMAC_CAM0 + + index * 0x8), + cfg); + } + } + } +} + +static int cgx_lmac_get_pause_frm_status(void *cgxd, int lmac_id, + u8 *tx_pause, u8 *rx_pause) +{ + struct cgx *cgx = cgxd; + u64 cfg; + + if (is_dev_rpm(cgx)) + return 0; + + if (!is_lmac_valid(cgx, lmac_id)) + return -ENODEV; + + cfg = cgx_read(cgx, lmac_id, CGXX_SMUX_RX_FRM_CTL); + *rx_pause = !!(cfg & CGX_SMUX_RX_FRM_CTL_CTL_BCK); + + cfg = cgx_read(cgx, lmac_id, CGXX_SMUX_TX_CTL); + *tx_pause = !!(cfg & CGX_SMUX_TX_CTL_L2P_BP_CONV); + return 0; +} + +/* Enable or disable forwarding received pause frames to Tx block */ +void cgx_lmac_enadis_rx_pause_fwding(void *cgxd, int lmac_id, bool enable) +{ + struct cgx *cgx = cgxd; + u8 rx_pause, tx_pause; + bool is_pfc_enabled; + struct lmac *lmac; + u64 cfg; + + if (!cgx) + return; + + lmac = lmac_pdata(lmac_id, cgx); + if (!lmac) + return; + + /* Pause frames are not enabled just return */ + if (!bitmap_weight(lmac->rx_fc_pfvf_bmap.bmap, lmac->rx_fc_pfvf_bmap.max)) + return; + + cgx_lmac_get_pause_frm_status(cgx, lmac_id, &rx_pause, &tx_pause); + is_pfc_enabled = rx_pause ? false : true; + + if (enable) { + if (!is_pfc_enabled) { + cfg = cgx_read(cgx, lmac_id, CGXX_GMP_GMI_RXX_FRM_CTL); + cfg |= CGX_GMP_GMI_RXX_FRM_CTL_CTL_BCK; + cgx_write(cgx, lmac_id, CGXX_GMP_GMI_RXX_FRM_CTL, cfg); + + cfg = cgx_read(cgx, lmac_id, CGXX_SMUX_RX_FRM_CTL); + cfg |= CGX_SMUX_RX_FRM_CTL_CTL_BCK; + cgx_write(cgx, lmac_id, CGXX_SMUX_RX_FRM_CTL, cfg); + } else { + cfg = cgx_read(cgx, lmac_id, CGXX_SMUX_CBFC_CTL); + cfg |= CGXX_SMUX_CBFC_CTL_BCK_EN; + cgx_write(cgx, lmac_id, CGXX_SMUX_CBFC_CTL, cfg); + } + } else { + + if (!is_pfc_enabled) { + cfg = cgx_read(cgx, lmac_id, CGXX_GMP_GMI_RXX_FRM_CTL); + cfg &= ~CGX_GMP_GMI_RXX_FRM_CTL_CTL_BCK; + cgx_write(cgx, lmac_id, CGXX_GMP_GMI_RXX_FRM_CTL, cfg); + + cfg = cgx_read(cgx, lmac_id, CGXX_SMUX_RX_FRM_CTL); + cfg &= ~CGX_SMUX_RX_FRM_CTL_CTL_BCK; + cgx_write(cgx, lmac_id, CGXX_SMUX_RX_FRM_CTL, cfg); + } else { + cfg = cgx_read(cgx, lmac_id, CGXX_SMUX_CBFC_CTL); + cfg &= ~CGXX_SMUX_CBFC_CTL_BCK_EN; + cgx_write(cgx, lmac_id, CGXX_SMUX_CBFC_CTL, cfg); + } + } +} + +int cgx_get_rx_stats(void *cgxd, int lmac_id, int idx, u64 *rx_stat) +{ + struct cgx *cgx = cgxd; + + if (!is_lmac_valid(cgx, lmac_id)) + return -ENODEV; + *rx_stat = cgx_read(cgx, lmac_id, CGXX_CMRX_RX_STAT0 + (idx * 8)); + return 0; +} + +int cgx_get_tx_stats(void *cgxd, int lmac_id, int idx, u64 *tx_stat) +{ + struct cgx *cgx = cgxd; + + if (!is_lmac_valid(cgx, lmac_id)) + return -ENODEV; + *tx_stat = cgx_read(cgx, lmac_id, CGXX_CMRX_TX_STAT0 + (idx * 8)); + return 0; +} + +u64 cgx_features_get(void *cgxd) +{ + return ((struct cgx *)cgxd)->hw_features; +} + +static int cgx_set_fec_stats_count(struct cgx_link_user_info *linfo) +{ + if (!linfo->fec) + return 0; + + switch (linfo->lmac_type_id) { + case LMAC_MODE_SGMII: + case LMAC_MODE_XAUI: + case LMAC_MODE_RXAUI: + case LMAC_MODE_QSGMII: + return 0; + case LMAC_MODE_10G_R: + case LMAC_MODE_25G_R: + case LMAC_MODE_100G_R: + case LMAC_MODE_USXGMII: + return 1; + case LMAC_MODE_40G_R: + return 4; + case LMAC_MODE_50G_R: + if (linfo->fec == OTX2_FEC_BASER) + return 2; + else + return 1; + default: + return 0; + } +} + +int cgx_get_fec_stats(void *cgxd, int lmac_id, struct cgx_fec_stats_rsp *rsp) +{ + int stats, fec_stats_count = 0; + int corr_reg, uncorr_reg; + struct cgx *cgx = cgxd; + + if (!cgx || lmac_id >= cgx->lmac_count) + return -ENODEV; + fec_stats_count = + cgx_set_fec_stats_count(&cgx->lmac_idmap[lmac_id]->link_info); + if (cgx->lmac_idmap[lmac_id]->link_info.fec == OTX2_FEC_BASER) { + corr_reg = CGXX_SPUX_LNX_FEC_CORR_BLOCKS; + uncorr_reg = CGXX_SPUX_LNX_FEC_UNCORR_BLOCKS; + } else { + corr_reg = CGXX_SPUX_RSFEC_CORR; + uncorr_reg = CGXX_SPUX_RSFEC_UNCORR; + } + for (stats = 0; stats < fec_stats_count; stats++) { + rsp->fec_corr_blks += + cgx_read(cgx, lmac_id, corr_reg + (stats * 8)); + rsp->fec_uncorr_blks += + cgx_read(cgx, lmac_id, uncorr_reg + (stats * 8)); + } + return 0; +} + +int cgx_lmac_rx_tx_enable(void *cgxd, int lmac_id, bool enable) +{ + struct cgx *cgx = cgxd; + u64 cfg; + + if (!is_lmac_valid(cgx, lmac_id)) + return -ENODEV; + + cfg = cgx_read(cgx, lmac_id, CGXX_CMRX_CFG); + if (enable) + cfg |= DATA_PKT_RX_EN | DATA_PKT_TX_EN; + else + cfg &= ~(DATA_PKT_RX_EN | DATA_PKT_TX_EN); + cgx_write(cgx, lmac_id, CGXX_CMRX_CFG, cfg); + return 0; +} + +int cgx_lmac_tx_enable(void *cgxd, int lmac_id, bool enable) +{ + struct cgx *cgx = cgxd; + u64 cfg, last; + + if (!is_lmac_valid(cgx, lmac_id)) + return -ENODEV; + + cfg = cgx_read(cgx, lmac_id, CGXX_CMRX_CFG); + last = cfg; + if (enable) + cfg |= DATA_PKT_TX_EN; + else + cfg &= ~DATA_PKT_TX_EN; + + if (cfg != last) + cgx_write(cgx, lmac_id, CGXX_CMRX_CFG, cfg); + return !!(last & DATA_PKT_TX_EN); +} + +static int cgx_lmac_enadis_pause_frm(void *cgxd, int lmac_id, + u8 tx_pause, u8 rx_pause) +{ + struct cgx *cgx = cgxd; + u64 cfg; + + if (is_dev_rpm(cgx)) + return 0; + + if (!is_lmac_valid(cgx, lmac_id)) + return -ENODEV; + + cfg = cgx_read(cgx, lmac_id, CGXX_SMUX_RX_FRM_CTL); + cfg &= ~CGX_SMUX_RX_FRM_CTL_CTL_BCK; + cfg |= rx_pause ? CGX_SMUX_RX_FRM_CTL_CTL_BCK : 0x0; + cgx_write(cgx, lmac_id, CGXX_SMUX_RX_FRM_CTL, cfg); + + cfg = cgx_read(cgx, lmac_id, CGXX_SMUX_TX_CTL); + cfg &= ~CGX_SMUX_TX_CTL_L2P_BP_CONV; + cfg |= tx_pause ? CGX_SMUX_TX_CTL_L2P_BP_CONV : 0x0; + cgx_write(cgx, lmac_id, CGXX_SMUX_TX_CTL, cfg); + + cfg = cgx_read(cgx, 0, CGXX_CMR_RX_OVR_BP); + if (tx_pause) { + cfg &= ~CGX_CMR_RX_OVR_BP_EN(lmac_id); + } else { + cfg |= CGX_CMR_RX_OVR_BP_EN(lmac_id); + cfg &= ~CGX_CMR_RX_OVR_BP_BP(lmac_id); + } + cgx_write(cgx, 0, CGXX_CMR_RX_OVR_BP, cfg); + return 0; +} + +static void cgx_lmac_pause_frm_config(void *cgxd, int lmac_id, bool enable) +{ + struct cgx *cgx = cgxd; + u64 cfg; + + if (!is_lmac_valid(cgx, lmac_id)) + return; + + if (enable) { + /* Set pause time and interval */ + cgx_write(cgx, lmac_id, CGXX_SMUX_TX_PAUSE_PKT_TIME, + DEFAULT_PAUSE_TIME); + cfg = cgx_read(cgx, lmac_id, CGXX_SMUX_TX_PAUSE_PKT_INTERVAL); + cfg &= ~0xFFFFULL; + cgx_write(cgx, lmac_id, CGXX_SMUX_TX_PAUSE_PKT_INTERVAL, + cfg | (DEFAULT_PAUSE_TIME / 2)); + + cgx_write(cgx, lmac_id, CGXX_GMP_GMI_TX_PAUSE_PKT_TIME, + DEFAULT_PAUSE_TIME); + + cfg = cgx_read(cgx, lmac_id, + CGXX_GMP_GMI_TX_PAUSE_PKT_INTERVAL); + cfg &= ~0xFFFFULL; + cgx_write(cgx, lmac_id, CGXX_GMP_GMI_TX_PAUSE_PKT_INTERVAL, + cfg | (DEFAULT_PAUSE_TIME / 2)); + } + + /* ALL pause frames received are completely ignored */ + cfg = cgx_read(cgx, lmac_id, CGXX_SMUX_RX_FRM_CTL); + cfg &= ~CGX_SMUX_RX_FRM_CTL_CTL_BCK; + cgx_write(cgx, lmac_id, CGXX_SMUX_RX_FRM_CTL, cfg); + + cfg = cgx_read(cgx, lmac_id, CGXX_GMP_GMI_RXX_FRM_CTL); + cfg &= ~CGX_GMP_GMI_RXX_FRM_CTL_CTL_BCK; + cgx_write(cgx, lmac_id, CGXX_GMP_GMI_RXX_FRM_CTL, cfg); + + /* Disable pause frames transmission */ + cfg = cgx_read(cgx, lmac_id, CGXX_SMUX_TX_CTL); + cfg &= ~CGX_SMUX_TX_CTL_L2P_BP_CONV; + cgx_write(cgx, lmac_id, CGXX_SMUX_TX_CTL, cfg); + + cfg = cgx_read(cgx, 0, CGXX_CMR_RX_OVR_BP); + cfg |= CGX_CMR_RX_OVR_BP_EN(lmac_id); + cfg &= ~CGX_CMR_RX_OVR_BP_BP(lmac_id); + cgx_write(cgx, 0, CGXX_CMR_RX_OVR_BP, cfg); + + /* Disable all PFC classes by default */ + cfg = cgx_read(cgx, lmac_id, CGXX_SMUX_CBFC_CTL); + cfg = FIELD_SET(CGX_PFC_CLASS_MASK, 0, cfg); + cgx_write(cgx, lmac_id, CGXX_SMUX_CBFC_CTL, cfg); +} + +int verify_lmac_fc_cfg(void *cgxd, int lmac_id, u8 tx_pause, u8 rx_pause, + int pfvf_idx) +{ + struct cgx *cgx = cgxd; + struct lmac *lmac; + + lmac = lmac_pdata(lmac_id, cgx); + if (!lmac) + return -ENODEV; + + if (!rx_pause) + clear_bit(pfvf_idx, lmac->rx_fc_pfvf_bmap.bmap); + else + set_bit(pfvf_idx, lmac->rx_fc_pfvf_bmap.bmap); + + if (!tx_pause) + clear_bit(pfvf_idx, lmac->tx_fc_pfvf_bmap.bmap); + else + set_bit(pfvf_idx, lmac->tx_fc_pfvf_bmap.bmap); + + /* check if other pfvfs are using flow control */ + if (!rx_pause && bitmap_weight(lmac->rx_fc_pfvf_bmap.bmap, lmac->rx_fc_pfvf_bmap.max)) { + dev_warn(&cgx->pdev->dev, + "Receive Flow control disable not permitted as its used by other PFVFs\n"); + return -EPERM; + } + + if (!tx_pause && bitmap_weight(lmac->tx_fc_pfvf_bmap.bmap, lmac->tx_fc_pfvf_bmap.max)) { + dev_warn(&cgx->pdev->dev, + "Transmit Flow control disable not permitted as its used by other PFVFs\n"); + return -EPERM; + } + + return 0; +} + +int cgx_lmac_pfc_config(void *cgxd, int lmac_id, u8 tx_pause, + u8 rx_pause, u16 pfc_en) +{ + struct cgx *cgx = cgxd; + u64 cfg; + + if (!is_lmac_valid(cgx, lmac_id)) + return -ENODEV; + + /* Return as no traffic classes are requested */ + if (tx_pause && !pfc_en) + return 0; + + cfg = cgx_read(cgx, lmac_id, CGXX_SMUX_CBFC_CTL); + pfc_en |= FIELD_GET(CGX_PFC_CLASS_MASK, cfg); + + if (rx_pause) { + cfg |= (CGXX_SMUX_CBFC_CTL_RX_EN | + CGXX_SMUX_CBFC_CTL_BCK_EN | + CGXX_SMUX_CBFC_CTL_DRP_EN); + } else { + cfg &= ~(CGXX_SMUX_CBFC_CTL_RX_EN | + CGXX_SMUX_CBFC_CTL_BCK_EN | + CGXX_SMUX_CBFC_CTL_DRP_EN); + } + + if (tx_pause) { + cfg |= CGXX_SMUX_CBFC_CTL_TX_EN; + cfg = FIELD_SET(CGX_PFC_CLASS_MASK, pfc_en, cfg); + } else { + cfg &= ~CGXX_SMUX_CBFC_CTL_TX_EN; + cfg = FIELD_SET(CGX_PFC_CLASS_MASK, 0, cfg); + } + + cgx_write(cgx, lmac_id, CGXX_SMUX_CBFC_CTL, cfg); + + /* Write source MAC address which will be filled into PFC packet */ + cfg = cgx_lmac_addr_get(cgx->cgx_id, lmac_id); + cgx_write(cgx, lmac_id, CGXX_SMUX_SMAC, cfg); + + return 0; +} + +int cgx_lmac_get_pfc_frm_cfg(void *cgxd, int lmac_id, u8 *tx_pause, + u8 *rx_pause) +{ + struct cgx *cgx = cgxd; + u64 cfg; + + if (!is_lmac_valid(cgx, lmac_id)) + return -ENODEV; + + cfg = cgx_read(cgx, lmac_id, CGXX_SMUX_CBFC_CTL); + + *rx_pause = !!(cfg & CGXX_SMUX_CBFC_CTL_RX_EN); + *tx_pause = !!(cfg & CGXX_SMUX_CBFC_CTL_TX_EN); + + return 0; +} + +void cgx_lmac_ptp_config(void *cgxd, int lmac_id, bool enable) +{ + struct cgx *cgx = cgxd; + u64 cfg; + + if (!cgx) + return; + + if (enable) { + /* Enable inbound PTP timestamping */ + cfg = cgx_read(cgx, lmac_id, CGXX_GMP_GMI_RXX_FRM_CTL); + cfg |= CGX_GMP_GMI_RXX_FRM_CTL_PTP_MODE; + cgx_write(cgx, lmac_id, CGXX_GMP_GMI_RXX_FRM_CTL, cfg); + + cfg = cgx_read(cgx, lmac_id, CGXX_SMUX_RX_FRM_CTL); + cfg |= CGX_SMUX_RX_FRM_CTL_PTP_MODE; + cgx_write(cgx, lmac_id, CGXX_SMUX_RX_FRM_CTL, cfg); + } else { + /* Disable inbound PTP stamping */ + cfg = cgx_read(cgx, lmac_id, CGXX_GMP_GMI_RXX_FRM_CTL); + cfg &= ~CGX_GMP_GMI_RXX_FRM_CTL_PTP_MODE; + cgx_write(cgx, lmac_id, CGXX_GMP_GMI_RXX_FRM_CTL, cfg); + + cfg = cgx_read(cgx, lmac_id, CGXX_SMUX_RX_FRM_CTL); + cfg &= ~CGX_SMUX_RX_FRM_CTL_PTP_MODE; + cgx_write(cgx, lmac_id, CGXX_SMUX_RX_FRM_CTL, cfg); + } +} + +/* CGX Firmware interface low level support */ +int cgx_fwi_cmd_send(u64 req, u64 *resp, struct lmac *lmac) +{ + struct cgx *cgx = lmac->cgx; + struct device *dev; + int err = 0; + u64 cmd; + + /* Ensure no other command is in progress */ + err = mutex_lock_interruptible(&lmac->cmd_lock); + if (err) + return err; + + /* Ensure command register is free */ + cmd = cgx_read(cgx, lmac->lmac_id, CGX_COMMAND_REG); + if (FIELD_GET(CMDREG_OWN, cmd) != CGX_CMD_OWN_NS) { + err = -EBUSY; + goto unlock; + } + + /* Update ownership in command request */ + req = FIELD_SET(CMDREG_OWN, CGX_CMD_OWN_FIRMWARE, req); + + /* Mark this lmac as pending, before we start */ + lmac->cmd_pend = true; + + /* Start command in hardware */ + cgx_write(cgx, lmac->lmac_id, CGX_COMMAND_REG, req); + + /* Ensure command is completed without errors */ + if (!wait_event_timeout(lmac->wq_cmd_cmplt, !lmac->cmd_pend, + msecs_to_jiffies(CGX_CMD_TIMEOUT))) { + dev = &cgx->pdev->dev; + dev_err(dev, "cgx port %d:%d cmd %lld timeout\n", + cgx->cgx_id, lmac->lmac_id, FIELD_GET(CMDREG_ID, req)); + err = LMAC_AF_ERR_CMD_TIMEOUT; + goto unlock; + } + + /* we have a valid command response */ + smp_rmb(); /* Ensure the latest updates are visible */ + *resp = lmac->resp; + +unlock: + mutex_unlock(&lmac->cmd_lock); + + return err; +} + +int cgx_fwi_cmd_generic(u64 req, u64 *resp, struct cgx *cgx, int lmac_id) +{ + struct lmac *lmac; + int err; + + lmac = lmac_pdata(lmac_id, cgx); + if (!lmac) + return -ENODEV; + + err = cgx_fwi_cmd_send(req, resp, lmac); + + /* Check for valid response */ + if (!err) { + if (FIELD_GET(EVTREG_STAT, *resp) == CGX_STAT_FAIL) + return -EIO; + else + return 0; + } + + return err; +} + +static int cgx_link_usertable_index_map(int speed) +{ + switch (speed) { + case SPEED_10: + return CGX_LINK_10M; + case SPEED_100: + return CGX_LINK_100M; + case SPEED_1000: + return CGX_LINK_1G; + case SPEED_2500: + return CGX_LINK_2HG; + case SPEED_5000: + return CGX_LINK_5G; + case SPEED_10000: + return CGX_LINK_10G; + case SPEED_20000: + return CGX_LINK_20G; + case SPEED_25000: + return CGX_LINK_25G; + case SPEED_40000: + return CGX_LINK_40G; + case SPEED_50000: + return CGX_LINK_50G; + case 80000: + return CGX_LINK_80G; + case SPEED_100000: + return CGX_LINK_100G; + case SPEED_UNKNOWN: + return CGX_LINK_NONE; + } + return CGX_LINK_NONE; +} + +static void set_mod_args(struct cgx_set_link_mode_args *args, + u32 speed, u8 duplex, u8 autoneg, u64 mode) +{ + /* Fill default values incase of user did not pass + * valid parameters + */ + if (args->duplex == DUPLEX_UNKNOWN) + args->duplex = duplex; + if (args->speed == SPEED_UNKNOWN) + args->speed = speed; + if (args->an == AUTONEG_UNKNOWN) + args->an = autoneg; + args->mode = mode; + args->ports = 0; +} + +static void otx2_map_ethtool_link_modes(u64 bitmask, + struct cgx_set_link_mode_args *args) +{ + switch (bitmask) { + case ETHTOOL_LINK_MODE_10baseT_Half_BIT: + set_mod_args(args, 10, 1, 1, BIT_ULL(CGX_MODE_SGMII)); + break; + case ETHTOOL_LINK_MODE_10baseT_Full_BIT: + set_mod_args(args, 10, 0, 1, BIT_ULL(CGX_MODE_SGMII)); + break; + case ETHTOOL_LINK_MODE_100baseT_Half_BIT: + set_mod_args(args, 100, 1, 1, BIT_ULL(CGX_MODE_SGMII)); + break; + case ETHTOOL_LINK_MODE_100baseT_Full_BIT: + set_mod_args(args, 100, 0, 1, BIT_ULL(CGX_MODE_SGMII)); + break; + case ETHTOOL_LINK_MODE_1000baseT_Half_BIT: + set_mod_args(args, 1000, 1, 1, BIT_ULL(CGX_MODE_SGMII)); + break; + case ETHTOOL_LINK_MODE_1000baseT_Full_BIT: + set_mod_args(args, 1000, 0, 1, BIT_ULL(CGX_MODE_SGMII)); + break; + case ETHTOOL_LINK_MODE_1000baseX_Full_BIT: + set_mod_args(args, 1000, 0, 0, BIT_ULL(CGX_MODE_1000_BASEX)); + break; + case ETHTOOL_LINK_MODE_10000baseT_Full_BIT: + set_mod_args(args, 1000, 0, 1, BIT_ULL(CGX_MODE_QSGMII)); + break; + case ETHTOOL_LINK_MODE_10000baseSR_Full_BIT: + set_mod_args(args, 10000, 0, 0, BIT_ULL(CGX_MODE_10G_C2C)); + break; + case ETHTOOL_LINK_MODE_10000baseLR_Full_BIT: + set_mod_args(args, 10000, 0, 0, BIT_ULL(CGX_MODE_10G_C2M)); + break; + case ETHTOOL_LINK_MODE_10000baseKR_Full_BIT: + set_mod_args(args, 10000, 0, 1, BIT_ULL(CGX_MODE_10G_KR)); + break; + case ETHTOOL_LINK_MODE_25000baseSR_Full_BIT: + set_mod_args(args, 25000, 0, 0, BIT_ULL(CGX_MODE_25G_C2C)); + break; + case ETHTOOL_LINK_MODE_25000baseCR_Full_BIT: + set_mod_args(args, 25000, 0, 1, BIT_ULL(CGX_MODE_25G_CR)); + break; + case ETHTOOL_LINK_MODE_25000baseKR_Full_BIT: + set_mod_args(args, 25000, 0, 1, BIT_ULL(CGX_MODE_25G_KR)); + break; + case ETHTOOL_LINK_MODE_40000baseSR4_Full_BIT: + set_mod_args(args, 40000, 0, 0, BIT_ULL(CGX_MODE_40G_C2C)); + break; + case ETHTOOL_LINK_MODE_40000baseLR4_Full_BIT: + set_mod_args(args, 40000, 0, 0, BIT_ULL(CGX_MODE_40G_C2M)); + break; + case ETHTOOL_LINK_MODE_40000baseCR4_Full_BIT: + set_mod_args(args, 40000, 0, 1, BIT_ULL(CGX_MODE_40G_CR4)); + break; + case ETHTOOL_LINK_MODE_40000baseKR4_Full_BIT: + set_mod_args(args, 40000, 0, 1, BIT_ULL(CGX_MODE_40G_KR4)); + break; + case ETHTOOL_LINK_MODE_50000baseSR_Full_BIT: + set_mod_args(args, 50000, 0, 0, BIT_ULL(CGX_MODE_50G_C2C)); + break; + case ETHTOOL_LINK_MODE_50000baseLR_ER_FR_Full_BIT: + set_mod_args(args, 50000, 0, 0, BIT_ULL(CGX_MODE_50G_C2M)); + break; + case ETHTOOL_LINK_MODE_50000baseCR_Full_BIT: + set_mod_args(args, 50000, 0, 1, BIT_ULL(CGX_MODE_50G_CR)); + break; + case ETHTOOL_LINK_MODE_50000baseKR_Full_BIT: + set_mod_args(args, 50000, 0, 1, BIT_ULL(CGX_MODE_50G_KR)); + break; + case ETHTOOL_LINK_MODE_100000baseSR4_Full_BIT: + set_mod_args(args, 100000, 0, 0, BIT_ULL(CGX_MODE_100G_C2C)); + break; + case ETHTOOL_LINK_MODE_100000baseLR4_ER4_Full_BIT: + set_mod_args(args, 100000, 0, 0, BIT_ULL(CGX_MODE_100G_C2M)); + break; + case ETHTOOL_LINK_MODE_100000baseCR4_Full_BIT: + set_mod_args(args, 100000, 0, 1, BIT_ULL(CGX_MODE_100G_CR4)); + break; + case ETHTOOL_LINK_MODE_100000baseKR4_Full_BIT: + set_mod_args(args, 100000, 0, 1, BIT_ULL(CGX_MODE_100G_KR4)); + break; + default: + set_mod_args(args, 0, 1, 0, BIT_ULL(CGX_MODE_MAX)); + break; + } +} + +static inline void link_status_user_format(u64 lstat, + struct cgx_link_user_info *linfo, + struct cgx *cgx, u8 lmac_id) +{ + const char *lmac_string; + + linfo->link_up = FIELD_GET(RESP_LINKSTAT_UP, lstat); + linfo->full_duplex = FIELD_GET(RESP_LINKSTAT_FDUPLEX, lstat); + linfo->speed = cgx_speed_mbps[FIELD_GET(RESP_LINKSTAT_SPEED, lstat)]; + linfo->an = FIELD_GET(RESP_LINKSTAT_AN, lstat); + linfo->fec = FIELD_GET(RESP_LINKSTAT_FEC, lstat); + linfo->lmac_type_id = cgx_get_lmac_type(cgx, lmac_id); + + if (linfo->lmac_type_id >= LMAC_MODE_MAX) { + dev_err(&cgx->pdev->dev, "Unknown lmac_type_id %d reported by firmware on cgx port%d:%d", + linfo->lmac_type_id, cgx->cgx_id, lmac_id); + strncpy(linfo->lmac_type, "Unknown", LMACTYPE_STR_LEN - 1); + return; + } + + lmac_string = cgx_lmactype_string[linfo->lmac_type_id]; + strncpy(linfo->lmac_type, lmac_string, LMACTYPE_STR_LEN - 1); +} + +/* Hardware event handlers */ +static inline void cgx_link_change_handler(u64 lstat, + struct lmac *lmac) +{ + struct cgx_link_user_info *linfo; + struct cgx *cgx = lmac->cgx; + struct cgx_link_event event; + struct device *dev; + int err_type; + + dev = &cgx->pdev->dev; + + link_status_user_format(lstat, &event.link_uinfo, cgx, lmac->lmac_id); + err_type = FIELD_GET(RESP_LINKSTAT_ERRTYPE, lstat); + + event.cgx_id = cgx->cgx_id; + event.lmac_id = lmac->lmac_id; + + /* update the local copy of link status */ + lmac->link_info = event.link_uinfo; + linfo = &lmac->link_info; + + if (err_type == CGX_ERR_SPEED_CHANGE_INVALID) + return; + + /* Ensure callback doesn't get unregistered until we finish it */ + spin_lock(&lmac->event_cb_lock); + + if (!lmac->event_cb.notify_link_chg) { + dev_dbg(dev, "cgx port %d:%d Link change handler null", + cgx->cgx_id, lmac->lmac_id); + if (err_type != CGX_ERR_NONE) { + dev_err(dev, "cgx port %d:%d Link error %d\n", + cgx->cgx_id, lmac->lmac_id, err_type); + } + dev_info(dev, "cgx port %d:%d Link is %s %d Mbps\n", + cgx->cgx_id, lmac->lmac_id, + linfo->link_up ? "UP" : "DOWN", linfo->speed); + goto err; + } + + if (lmac->event_cb.notify_link_chg(&event, lmac->event_cb.data)) + dev_err(dev, "event notification failure\n"); +err: + spin_unlock(&lmac->event_cb_lock); +} + +static inline bool cgx_cmdresp_is_linkevent(u64 event) +{ + u8 id; + + id = FIELD_GET(EVTREG_ID, event); + if (id == CGX_CMD_LINK_BRING_UP || + id == CGX_CMD_LINK_BRING_DOWN || + id == CGX_CMD_MODE_CHANGE) + return true; + else + return false; +} + +static inline bool cgx_event_is_linkevent(u64 event) +{ + if (FIELD_GET(EVTREG_ID, event) == CGX_EVT_LINK_CHANGE) + return true; + else + return false; +} + +static irqreturn_t cgx_fwi_event_handler(int irq, void *data) +{ + u64 event, offset, clear_bit; + struct lmac *lmac = data; + struct cgx *cgx; + + cgx = lmac->cgx; + + /* Clear SW_INT for RPM and CMR_INT for CGX */ + offset = cgx->mac_ops->int_register; + clear_bit = cgx->mac_ops->int_ena_bit; + + event = cgx_read(cgx, lmac->lmac_id, CGX_EVENT_REG); + + if (!FIELD_GET(EVTREG_ACK, event)) + return IRQ_NONE; + + switch (FIELD_GET(EVTREG_EVT_TYPE, event)) { + case CGX_EVT_CMD_RESP: + /* Copy the response. Since only one command is active at a + * time, there is no way a response can get overwritten + */ + lmac->resp = event; + /* Ensure response is updated before thread context starts */ + smp_wmb(); + + /* There wont be separate events for link change initiated from + * software; Hence report the command responses as events + */ + if (cgx_cmdresp_is_linkevent(event)) + cgx_link_change_handler(event, lmac); + + /* Release thread waiting for completion */ + lmac->cmd_pend = false; + wake_up_interruptible(&lmac->wq_cmd_cmplt); + break; + case CGX_EVT_ASYNC: + if (cgx_event_is_linkevent(event)) + cgx_link_change_handler(event, lmac); + break; + } + + /* Any new event or command response will be posted by firmware + * only after the current status is acked. + * Ack the interrupt register as well. + */ + cgx_write(lmac->cgx, lmac->lmac_id, CGX_EVENT_REG, 0); + cgx_write(lmac->cgx, lmac->lmac_id, offset, clear_bit); + + return IRQ_HANDLED; +} + +/* APIs for PHY management using CGX firmware interface */ + +/* callback registration for hardware events like link change */ +int cgx_lmac_evh_register(struct cgx_event_cb *cb, void *cgxd, int lmac_id) +{ + struct cgx *cgx = cgxd; + struct lmac *lmac; + + lmac = lmac_pdata(lmac_id, cgx); + if (!lmac) + return -ENODEV; + + lmac->event_cb = *cb; + + return 0; +} + +int cgx_lmac_evh_unregister(void *cgxd, int lmac_id) +{ + struct lmac *lmac; + unsigned long flags; + struct cgx *cgx = cgxd; + + lmac = lmac_pdata(lmac_id, cgx); + if (!lmac) + return -ENODEV; + + spin_lock_irqsave(&lmac->event_cb_lock, flags); + lmac->event_cb.notify_link_chg = NULL; + lmac->event_cb.data = NULL; + spin_unlock_irqrestore(&lmac->event_cb_lock, flags); + + return 0; +} + +int cgx_get_fwdata_base(u64 *base) +{ + u64 req = 0, resp; + struct cgx *cgx; + int first_lmac; + int err; + + cgx = list_first_entry_or_null(&cgx_list, struct cgx, cgx_list); + if (!cgx) + return -ENXIO; + + first_lmac = find_first_bit(&cgx->lmac_bmap, cgx->max_lmac_per_mac); + req = FIELD_SET(CMDREG_ID, CGX_CMD_GET_FWD_BASE, req); + err = cgx_fwi_cmd_generic(req, &resp, cgx, first_lmac); + if (!err) + *base = FIELD_GET(RESP_FWD_BASE, resp); + + return err; +} + +int cgx_set_link_mode(void *cgxd, struct cgx_set_link_mode_args args, + int cgx_id, int lmac_id) +{ + struct cgx *cgx = cgxd; + u64 req = 0, resp; + + if (!cgx) + return -ENODEV; + + if (args.mode) + otx2_map_ethtool_link_modes(args.mode, &args); + if (!args.speed && args.duplex && !args.an) + return -EINVAL; + + req = FIELD_SET(CMDREG_ID, CGX_CMD_MODE_CHANGE, req); + req = FIELD_SET(CMDMODECHANGE_SPEED, + cgx_link_usertable_index_map(args.speed), req); + req = FIELD_SET(CMDMODECHANGE_DUPLEX, args.duplex, req); + req = FIELD_SET(CMDMODECHANGE_AN, args.an, req); + req = FIELD_SET(CMDMODECHANGE_PORT, args.ports, req); + req = FIELD_SET(CMDMODECHANGE_FLAGS, args.mode, req); + + return cgx_fwi_cmd_generic(req, &resp, cgx, lmac_id); +} +int cgx_set_fec(u64 fec, int cgx_id, int lmac_id) +{ + u64 req = 0, resp; + struct cgx *cgx; + int err = 0; + + cgx = cgx_get_pdata(cgx_id); + if (!cgx) + return -ENXIO; + + req = FIELD_SET(CMDREG_ID, CGX_CMD_SET_FEC, req); + req = FIELD_SET(CMDSETFEC, fec, req); + err = cgx_fwi_cmd_generic(req, &resp, cgx, lmac_id); + if (err) + return err; + + cgx->lmac_idmap[lmac_id]->link_info.fec = + FIELD_GET(RESP_LINKSTAT_FEC, resp); + return cgx->lmac_idmap[lmac_id]->link_info.fec; +} + +int cgx_get_phy_fec_stats(void *cgxd, int lmac_id) +{ + struct cgx *cgx = cgxd; + u64 req = 0, resp; + + if (!cgx) + return -ENODEV; + + req = FIELD_SET(CMDREG_ID, CGX_CMD_GET_PHY_FEC_STATS, req); + return cgx_fwi_cmd_generic(req, &resp, cgx, lmac_id); +} + +static int cgx_fwi_link_change(struct cgx *cgx, int lmac_id, bool enable) +{ + u64 req = 0; + u64 resp; + + if (enable) { + req = FIELD_SET(CMDREG_ID, CGX_CMD_LINK_BRING_UP, req); + /* On CN10K firmware offloads link bring up/down operations to ECP + * On Octeontx2 link operations are handled by firmware itself + * which can cause mbox errors so configure maximum time firmware + * poll for Link as 1000 ms + */ + if (!is_dev_rpm(cgx)) + req = FIELD_SET(LINKCFG_TIMEOUT, 1000, req); + + } else { + req = FIELD_SET(CMDREG_ID, CGX_CMD_LINK_BRING_DOWN, req); + } + return cgx_fwi_cmd_generic(req, &resp, cgx, lmac_id); +} + +static inline int cgx_fwi_read_version(u64 *resp, struct cgx *cgx) +{ + int first_lmac = find_first_bit(&cgx->lmac_bmap, cgx->max_lmac_per_mac); + u64 req = 0; + + req = FIELD_SET(CMDREG_ID, CGX_CMD_GET_FW_VER, req); + return cgx_fwi_cmd_generic(req, resp, cgx, first_lmac); +} + +static int cgx_lmac_verify_fwi_version(struct cgx *cgx) +{ + struct device *dev = &cgx->pdev->dev; + int major_ver, minor_ver; + u64 resp; + int err; + + if (!cgx->lmac_count) + return 0; + + err = cgx_fwi_read_version(&resp, cgx); + if (err) + return err; + + major_ver = FIELD_GET(RESP_MAJOR_VER, resp); + minor_ver = FIELD_GET(RESP_MINOR_VER, resp); + dev_dbg(dev, "Firmware command interface version = %d.%d\n", + major_ver, minor_ver); + if (major_ver != CGX_FIRMWARE_MAJOR_VER) + return -EIO; + else + return 0; +} + +static void cgx_lmac_linkup_work(struct work_struct *work) +{ + struct cgx *cgx = container_of(work, struct cgx, cgx_cmd_work); + struct device *dev = &cgx->pdev->dev; + int i, err; + + /* Do Link up for all the enabled lmacs */ + for_each_set_bit(i, &cgx->lmac_bmap, cgx->max_lmac_per_mac) { + err = cgx_fwi_link_change(cgx, i, true); + if (err) + dev_info(dev, "cgx port %d:%d Link up command failed\n", + cgx->cgx_id, i); + } +} + +int cgx_lmac_linkup_start(void *cgxd) +{ + struct cgx *cgx = cgxd; + + if (!cgx) + return -ENODEV; + + queue_work(cgx->cgx_cmd_workq, &cgx->cgx_cmd_work); + + return 0; +} + +static int cgx_configure_interrupt(struct cgx *cgx, struct lmac *lmac, + int cnt, bool req_free) +{ + struct mac_ops *mac_ops = cgx->mac_ops; + u64 offset, ena_bit; + unsigned int irq; + int err; + + irq = pci_irq_vector(cgx->pdev, mac_ops->lmac_fwi + + cnt * mac_ops->irq_offset); + offset = mac_ops->int_set_reg; + ena_bit = mac_ops->int_ena_bit; + + if (req_free) { + free_irq(irq, lmac); + return 0; + } + + err = request_irq(irq, cgx_fwi_event_handler, 0, lmac->name, lmac); + if (err) + return err; + + /* Enable interrupt */ + cgx_write(cgx, lmac->lmac_id, offset, ena_bit); + return 0; +} + +int cgx_get_nr_lmacs(void *cgxd) +{ + struct cgx *cgx = cgxd; + + return cgx_read(cgx, 0, CGXX_CMRX_RX_LMACS) & 0x7ULL; +} + +u8 cgx_get_lmacid(void *cgxd, u8 lmac_index) +{ + struct cgx *cgx = cgxd; + + return cgx->lmac_idmap[lmac_index]->lmac_id; +} + +unsigned long cgx_get_lmac_bmap(void *cgxd) +{ + struct cgx *cgx = cgxd; + + return cgx->lmac_bmap; +} + +static int cgx_lmac_init(struct cgx *cgx) +{ + struct lmac *lmac; + u64 lmac_list; + int i, err; + + /* lmac_list specifies which lmacs are enabled + * when bit n is set to 1, LMAC[n] is enabled + */ + if (cgx->mac_ops->non_contiguous_serdes_lane) + lmac_list = cgx_read(cgx, 0, CGXX_CMRX_RX_LMACS) & 0xFULL; + + if (cgx->lmac_count > cgx->max_lmac_per_mac) + cgx->lmac_count = cgx->max_lmac_per_mac; + + for (i = 0; i < cgx->lmac_count; i++) { + lmac = kzalloc(sizeof(struct lmac), GFP_KERNEL); + if (!lmac) + return -ENOMEM; + lmac->name = kcalloc(1, sizeof("cgx_fwi_xxx_yyy"), GFP_KERNEL); + if (!lmac->name) { + err = -ENOMEM; + goto err_lmac_free; + } + sprintf(lmac->name, "cgx_fwi_%d_%d", cgx->cgx_id, i); + if (cgx->mac_ops->non_contiguous_serdes_lane) { + lmac->lmac_id = __ffs64(lmac_list); + lmac_list &= ~BIT_ULL(lmac->lmac_id); + } else { + lmac->lmac_id = i; + } + + lmac->cgx = cgx; + lmac->mac_to_index_bmap.max = + MAX_DMAC_ENTRIES_PER_CGX / cgx->lmac_count; + err = rvu_alloc_bitmap(&lmac->mac_to_index_bmap); + if (err) + goto err_name_free; + + /* Reserve first entry for default MAC address */ + set_bit(0, lmac->mac_to_index_bmap.bmap); + + lmac->rx_fc_pfvf_bmap.max = 128; + err = rvu_alloc_bitmap(&lmac->rx_fc_pfvf_bmap); + if (err) + goto err_dmac_bmap_free; + + lmac->tx_fc_pfvf_bmap.max = 128; + err = rvu_alloc_bitmap(&lmac->tx_fc_pfvf_bmap); + if (err) + goto err_rx_fc_bmap_free; + + init_waitqueue_head(&lmac->wq_cmd_cmplt); + mutex_init(&lmac->cmd_lock); + spin_lock_init(&lmac->event_cb_lock); + err = cgx_configure_interrupt(cgx, lmac, lmac->lmac_id, false); + if (err) + goto err_bitmap_free; + + /* Add reference */ + cgx->lmac_idmap[lmac->lmac_id] = lmac; + set_bit(lmac->lmac_id, &cgx->lmac_bmap); + cgx->mac_ops->mac_pause_frm_config(cgx, lmac->lmac_id, true); + } + + return cgx_lmac_verify_fwi_version(cgx); + +err_bitmap_free: + rvu_free_bitmap(&lmac->tx_fc_pfvf_bmap); +err_rx_fc_bmap_free: + rvu_free_bitmap(&lmac->rx_fc_pfvf_bmap); +err_dmac_bmap_free: + rvu_free_bitmap(&lmac->mac_to_index_bmap); +err_name_free: + kfree(lmac->name); +err_lmac_free: + kfree(lmac); + return err; +} + +static int cgx_lmac_exit(struct cgx *cgx) +{ + struct lmac *lmac; + int i; + + if (cgx->cgx_cmd_workq) { + destroy_workqueue(cgx->cgx_cmd_workq); + cgx->cgx_cmd_workq = NULL; + } + + /* Free all lmac related resources */ + for_each_set_bit(i, &cgx->lmac_bmap, cgx->max_lmac_per_mac) { + lmac = cgx->lmac_idmap[i]; + if (!lmac) + continue; + cgx->mac_ops->mac_pause_frm_config(cgx, lmac->lmac_id, false); + cgx_configure_interrupt(cgx, lmac, lmac->lmac_id, true); + kfree(lmac->mac_to_index_bmap.bmap); + kfree(lmac->name); + kfree(lmac); + } + + return 0; +} + +static void cgx_populate_features(struct cgx *cgx) +{ + u64 cfg; + + cfg = cgx_read(cgx, 0, CGX_CONST); + cgx->mac_ops->fifo_len = FIELD_GET(CGX_CONST_RXFIFO_SIZE, cfg); + cgx->max_lmac_per_mac = FIELD_GET(CGX_CONST_MAX_LMACS, cfg); + + if (is_dev_rpm(cgx)) + cgx->hw_features = (RVU_LMAC_FEAT_DMACF | RVU_MAC_RPM | + RVU_LMAC_FEAT_FC | RVU_LMAC_FEAT_PTP); + else + cgx->hw_features = (RVU_LMAC_FEAT_FC | RVU_LMAC_FEAT_HIGIG2 | + RVU_LMAC_FEAT_PTP | RVU_LMAC_FEAT_DMACF); +} + +static struct mac_ops cgx_mac_ops = { + .name = "cgx", + .csr_offset = 0, + .lmac_offset = 18, + .int_register = CGXX_CMRX_INT, + .int_set_reg = CGXX_CMRX_INT_ENA_W1S, + .irq_offset = 9, + .int_ena_bit = FW_CGX_INT, + .lmac_fwi = CGX_LMAC_FWI, + .non_contiguous_serdes_lane = false, + .rx_stats_cnt = 9, + .tx_stats_cnt = 18, + .get_nr_lmacs = cgx_get_nr_lmacs, + .get_lmac_type = cgx_get_lmac_type, + .lmac_fifo_len = cgx_get_lmac_fifo_len, + .mac_lmac_intl_lbk = cgx_lmac_internal_loopback, + .mac_get_rx_stats = cgx_get_rx_stats, + .mac_get_tx_stats = cgx_get_tx_stats, + .mac_enadis_rx_pause_fwding = cgx_lmac_enadis_rx_pause_fwding, + .mac_get_pause_frm_status = cgx_lmac_get_pause_frm_status, + .mac_enadis_pause_frm = cgx_lmac_enadis_pause_frm, + .mac_pause_frm_config = cgx_lmac_pause_frm_config, + .mac_enadis_ptp_config = cgx_lmac_ptp_config, + .mac_rx_tx_enable = cgx_lmac_rx_tx_enable, + .mac_tx_enable = cgx_lmac_tx_enable, + .pfc_config = cgx_lmac_pfc_config, + .mac_get_pfc_frm_cfg = cgx_lmac_get_pfc_frm_cfg, +}; + +static int cgx_probe(struct pci_dev *pdev, const struct pci_device_id *id) +{ + struct device *dev = &pdev->dev; + struct cgx *cgx; + int err, nvec; + + cgx = devm_kzalloc(dev, sizeof(*cgx), GFP_KERNEL); + if (!cgx) + return -ENOMEM; + cgx->pdev = pdev; + + pci_set_drvdata(pdev, cgx); + + /* Use mac_ops to get MAC specific features */ + if (pdev->device == PCI_DEVID_CN10K_RPM) + cgx->mac_ops = rpm_get_mac_ops(); + else + cgx->mac_ops = &cgx_mac_ops; + + err = pci_enable_device(pdev); + if (err) { + dev_err(dev, "Failed to enable PCI device\n"); + pci_set_drvdata(pdev, NULL); + return err; + } + + err = pci_request_regions(pdev, DRV_NAME); + if (err) { + dev_err(dev, "PCI request regions failed 0x%x\n", err); + goto err_disable_device; + } + + /* MAP configuration registers */ + cgx->reg_base = pcim_iomap(pdev, PCI_CFG_REG_BAR_NUM, 0); + if (!cgx->reg_base) { + dev_err(dev, "CGX: Cannot map CSR memory space, aborting\n"); + err = -ENOMEM; + goto err_release_regions; + } + + cgx->lmac_count = cgx->mac_ops->get_nr_lmacs(cgx); + if (!cgx->lmac_count) { + dev_notice(dev, "CGX %d LMAC count is zero, skipping probe\n", cgx->cgx_id); + err = -EOPNOTSUPP; + goto err_release_regions; + } + + nvec = pci_msix_vec_count(cgx->pdev); + err = pci_alloc_irq_vectors(pdev, nvec, nvec, PCI_IRQ_MSIX); + if (err < 0 || err != nvec) { + dev_err(dev, "Request for %d msix vectors failed, err %d\n", + nvec, err); + goto err_release_regions; + } + + cgx->cgx_id = (pci_resource_start(pdev, PCI_CFG_REG_BAR_NUM) >> 24) + & CGX_ID_MASK; + + /* init wq for processing linkup requests */ + INIT_WORK(&cgx->cgx_cmd_work, cgx_lmac_linkup_work); + cgx->cgx_cmd_workq = alloc_workqueue("cgx_cmd_workq", 0, 0); + if (!cgx->cgx_cmd_workq) { + dev_err(dev, "alloc workqueue failed for cgx cmd"); + err = -ENOMEM; + goto err_free_irq_vectors; + } + + list_add(&cgx->cgx_list, &cgx_list); + + + cgx_populate_features(cgx); + + mutex_init(&cgx->lock); + + err = cgx_lmac_init(cgx); + if (err) + goto err_release_lmac; + + return 0; + +err_release_lmac: + cgx_lmac_exit(cgx); + list_del(&cgx->cgx_list); +err_free_irq_vectors: + pci_free_irq_vectors(pdev); +err_release_regions: + pci_release_regions(pdev); +err_disable_device: + pci_disable_device(pdev); + pci_set_drvdata(pdev, NULL); + return err; +} + +static void cgx_remove(struct pci_dev *pdev) +{ + struct cgx *cgx = pci_get_drvdata(pdev); + + if (cgx) { + cgx_lmac_exit(cgx); + list_del(&cgx->cgx_list); + } + pci_free_irq_vectors(pdev); + pci_release_regions(pdev); + pci_disable_device(pdev); + pci_set_drvdata(pdev, NULL); +} + +struct pci_driver cgx_driver = { + .name = DRV_NAME, + .id_table = cgx_id_table, + .probe = cgx_probe, + .remove = cgx_remove, +}; diff --git a/drivers/net/ethernet/marvell/octeontx2/af/cgx.h b/drivers/net/ethernet/marvell/octeontx2/af/cgx.h new file mode 100644 index 000000000..09ddb00f6 --- /dev/null +++ b/drivers/net/ethernet/marvell/octeontx2/af/cgx.h @@ -0,0 +1,185 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* Marvell OcteonTx2 CGX driver + * + * Copyright (C) 2018 Marvell. + * + */ + +#ifndef CGX_H +#define CGX_H + +#include "mbox.h" +#include "cgx_fw_if.h" +#include "rpm.h" + + /* PCI device IDs */ +#define PCI_DEVID_OCTEONTX2_CGX 0xA059 + +/* PCI BAR nos */ +#define PCI_CFG_REG_BAR_NUM 0 + +#define CGX_ID_MASK 0xF +#define MAX_DMAC_ENTRIES_PER_CGX 32 + +/* Registers */ +#define CGXX_CMRX_CFG 0x00 +#define CMR_P2X_SEL_MASK GENMASK_ULL(61, 59) +#define CMR_P2X_SEL_SHIFT 59ULL +#define CMR_P2X_SEL_NIX0 1ULL +#define CMR_P2X_SEL_NIX1 2ULL +#define DATA_PKT_TX_EN BIT_ULL(53) +#define DATA_PKT_RX_EN BIT_ULL(54) +#define CGX_LMAC_TYPE_SHIFT 40 +#define CGX_LMAC_TYPE_MASK 0xF +#define CGXX_CMRX_INT 0x040 +#define FW_CGX_INT BIT_ULL(1) +#define CGXX_CMRX_INT_ENA_W1S 0x058 +#define CGXX_CMRX_RX_ID_MAP 0x060 +#define CGXX_CMRX_RX_STAT0 0x070 +#define CGXX_CMRX_RX_LMACS 0x128 +#define CGXX_CMRX_RX_DMAC_CTL0 (0x1F8 + mac_ops->csr_offset) +#define CGX_DMAC_CTL0_CAM_ENABLE BIT_ULL(3) +#define CGX_DMAC_CAM_ACCEPT BIT_ULL(3) +#define CGX_DMAC_MCAST_MODE_CAM BIT_ULL(2) +#define CGX_DMAC_MCAST_MODE BIT_ULL(1) +#define CGX_DMAC_BCAST_MODE BIT_ULL(0) +#define CGXX_CMRX_RX_DMAC_CAM0 (0x200 + mac_ops->csr_offset) +#define CGX_DMAC_CAM_ADDR_ENABLE BIT_ULL(48) +#define CGX_DMAC_CAM_ENTRY_LMACID GENMASK_ULL(50, 49) +#define CGXX_CMRX_RX_DMAC_CAM1 0x400 +#define CGX_RX_DMAC_ADR_MASK GENMASK_ULL(47, 0) +#define CGXX_CMRX_TX_STAT0 0x700 +#define CGXX_SCRATCH0_REG 0x1050 +#define CGXX_SCRATCH1_REG 0x1058 +#define CGX_CONST 0x2000 +#define CGX_CONST_RXFIFO_SIZE GENMASK_ULL(23, 0) +#define CGX_CONST_MAX_LMACS GENMASK_ULL(31, 24) +#define CGXX_SPUX_CONTROL1 0x10000 +#define CGXX_SPUX_LNX_FEC_CORR_BLOCKS 0x10700 +#define CGXX_SPUX_LNX_FEC_UNCORR_BLOCKS 0x10800 +#define CGXX_SPUX_RSFEC_CORR 0x10088 +#define CGXX_SPUX_RSFEC_UNCORR 0x10090 + +#define CGXX_SPUX_CONTROL1_LBK BIT_ULL(14) +#define CGXX_GMP_PCS_MRX_CTL 0x30000 +#define CGXX_GMP_PCS_MRX_CTL_LBK BIT_ULL(14) + +#define CGXX_SMUX_RX_FRM_CTL 0x20020 +#define CGX_SMUX_RX_FRM_CTL_CTL_BCK BIT_ULL(3) +#define CGX_SMUX_RX_FRM_CTL_PTP_MODE BIT_ULL(12) +#define CGXX_GMP_GMI_RXX_FRM_CTL 0x38028 +#define CGX_GMP_GMI_RXX_FRM_CTL_CTL_BCK BIT_ULL(3) +#define CGX_GMP_GMI_RXX_FRM_CTL_PTP_MODE BIT_ULL(12) +#define CGXX_SMUX_TX_CTL 0x20178 +#define CGXX_SMUX_TX_PAUSE_PKT_TIME 0x20110 +#define CGXX_SMUX_TX_PAUSE_PKT_INTERVAL 0x20120 +#define CGXX_SMUX_SMAC 0x20108 +#define CGXX_SMUX_CBFC_CTL 0x20218 +#define CGXX_SMUX_CBFC_CTL_RX_EN BIT_ULL(0) +#define CGXX_SMUX_CBFC_CTL_TX_EN BIT_ULL(1) +#define CGXX_SMUX_CBFC_CTL_DRP_EN BIT_ULL(2) +#define CGXX_SMUX_CBFC_CTL_BCK_EN BIT_ULL(3) +#define CGX_PFC_CLASS_MASK GENMASK_ULL(47, 32) +#define CGXX_GMP_GMI_TX_PAUSE_PKT_TIME 0x38230 +#define CGXX_GMP_GMI_TX_PAUSE_PKT_INTERVAL 0x38248 +#define CGX_SMUX_TX_CTL_L2P_BP_CONV BIT_ULL(7) +#define CGXX_CMR_RX_OVR_BP 0x130 +#define CGX_CMR_RX_OVR_BP_EN(X) BIT_ULL(((X) + 8)) +#define CGX_CMR_RX_OVR_BP_BP(X) BIT_ULL(((X) + 4)) + +#define CGX_COMMAND_REG CGXX_SCRATCH1_REG +#define CGX_EVENT_REG CGXX_SCRATCH0_REG +#define CGX_CMD_TIMEOUT 5000 /* msecs */ +#define DEFAULT_PAUSE_TIME 0x7FF + +#define CGX_LMAC_FWI 0 + +enum cgx_nix_stat_type { + NIX_STATS_RX, + NIX_STATS_TX, +}; + +enum LMAC_TYPE { + LMAC_MODE_SGMII = 0, + LMAC_MODE_XAUI = 1, + LMAC_MODE_RXAUI = 2, + LMAC_MODE_10G_R = 3, + LMAC_MODE_40G_R = 4, + LMAC_MODE_QSGMII = 6, + LMAC_MODE_25G_R = 7, + LMAC_MODE_50G_R = 8, + LMAC_MODE_100G_R = 9, + LMAC_MODE_USXGMII = 10, + LMAC_MODE_MAX, +}; + +struct cgx_link_event { + struct cgx_link_user_info link_uinfo; + u8 cgx_id; + u8 lmac_id; +}; + +/** + * struct cgx_event_cb + * @notify_link_chg: callback for link change notification + * @data: data passed to callback function + */ +struct cgx_event_cb { + int (*notify_link_chg)(struct cgx_link_event *event, void *data); + void *data; +}; + +extern struct pci_driver cgx_driver; + +int cgx_get_cgxcnt_max(void); +int cgx_get_cgxid(void *cgxd); +int cgx_get_lmac_cnt(void *cgxd); +void *cgx_get_pdata(int cgx_id); +int cgx_set_pkind(void *cgxd, u8 lmac_id, int pkind); +int cgx_lmac_evh_register(struct cgx_event_cb *cb, void *cgxd, int lmac_id); +int cgx_lmac_evh_unregister(void *cgxd, int lmac_id); +int cgx_get_tx_stats(void *cgxd, int lmac_id, int idx, u64 *tx_stat); +int cgx_get_rx_stats(void *cgxd, int lmac_id, int idx, u64 *rx_stat); +int cgx_lmac_rx_tx_enable(void *cgxd, int lmac_id, bool enable); +int cgx_lmac_tx_enable(void *cgxd, int lmac_id, bool enable); +int cgx_lmac_addr_set(u8 cgx_id, u8 lmac_id, u8 *mac_addr); +int cgx_lmac_addr_reset(u8 cgx_id, u8 lmac_id); +u64 cgx_lmac_addr_get(u8 cgx_id, u8 lmac_id); +int cgx_lmac_addr_add(u8 cgx_id, u8 lmac_id, u8 *mac_addr); +int cgx_lmac_addr_del(u8 cgx_id, u8 lmac_id, u8 index); +int cgx_lmac_addr_max_entries_get(u8 cgx_id, u8 lmac_id); +void cgx_lmac_promisc_config(int cgx_id, int lmac_id, bool enable); +void cgx_lmac_enadis_rx_pause_fwding(void *cgxd, int lmac_id, bool enable); +int cgx_lmac_internal_loopback(void *cgxd, int lmac_id, bool enable); +int cgx_get_link_info(void *cgxd, int lmac_id, + struct cgx_link_user_info *linfo); +int cgx_lmac_linkup_start(void *cgxd); +int cgx_get_fwdata_base(u64 *base); +int cgx_lmac_get_pause_frm(void *cgxd, int lmac_id, + u8 *tx_pause, u8 *rx_pause); +int cgx_lmac_set_pause_frm(void *cgxd, int lmac_id, + u8 tx_pause, u8 rx_pause); +void cgx_lmac_ptp_config(void *cgxd, int lmac_id, bool enable); +u8 cgx_lmac_get_p2x(int cgx_id, int lmac_id); +int cgx_set_fec(u64 fec, int cgx_id, int lmac_id); +int cgx_get_fec_stats(void *cgxd, int lmac_id, struct cgx_fec_stats_rsp *rsp); +int cgx_get_phy_fec_stats(void *cgxd, int lmac_id); +int cgx_set_link_mode(void *cgxd, struct cgx_set_link_mode_args args, + int cgx_id, int lmac_id); +u64 cgx_features_get(void *cgxd); +struct mac_ops *get_mac_ops(void *cgxd); +int cgx_get_nr_lmacs(void *cgxd); +u8 cgx_get_lmacid(void *cgxd, u8 lmac_index); +unsigned long cgx_get_lmac_bmap(void *cgxd); +void cgx_lmac_write(int cgx_id, int lmac_id, u64 offset, u64 val); +u64 cgx_lmac_read(int cgx_id, int lmac_id, u64 offset); +int cgx_lmac_addr_update(u8 cgx_id, u8 lmac_id, u8 *mac_addr, u8 index); +u64 cgx_read_dmac_ctrl(void *cgxd, int lmac_id); +u64 cgx_read_dmac_entry(void *cgxd, int index); +int cgx_lmac_pfc_config(void *cgxd, int lmac_id, u8 tx_pause, u8 rx_pause, + u16 pfc_en); +int cgx_lmac_get_pfc_frm_cfg(void *cgxd, int lmac_id, u8 *tx_pause, + u8 *rx_pause); +int verify_lmac_fc_cfg(void *cgxd, int lmac_id, u8 tx_pause, u8 rx_pause, + int pfvf_idx); +#endif /* CGX_H */ diff --git a/drivers/net/ethernet/marvell/octeontx2/af/cgx_fw_if.h b/drivers/net/ethernet/marvell/octeontx2/af/cgx_fw_if.h new file mode 100644 index 000000000..d4a27c882 --- /dev/null +++ b/drivers/net/ethernet/marvell/octeontx2/af/cgx_fw_if.h @@ -0,0 +1,266 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* Marvell OcteonTx2 CGX driver + * + * Copyright (C) 2018 Marvell. + * + */ + +#ifndef __CGX_FW_INTF_H__ +#define __CGX_FW_INTF_H__ + +#include <linux/bitops.h> +#include <linux/bitfield.h> + +#define CGX_FIRMWARE_MAJOR_VER 1 +#define CGX_FIRMWARE_MINOR_VER 0 + +#define CGX_EVENT_ACK 1UL + +/* CGX error types. set for cmd response status as CGX_STAT_FAIL */ +enum cgx_error_type { + CGX_ERR_NONE, + CGX_ERR_LMAC_NOT_ENABLED, + CGX_ERR_LMAC_MODE_INVALID, + CGX_ERR_REQUEST_ID_INVALID, + CGX_ERR_PREV_ACK_NOT_CLEAR, + CGX_ERR_PHY_LINK_DOWN, + CGX_ERR_PCS_RESET_FAIL, + CGX_ERR_AN_CPT_FAIL, + CGX_ERR_TX_NOT_IDLE, + CGX_ERR_RX_NOT_IDLE, + CGX_ERR_SPUX_BR_BLKLOCK_FAIL, + CGX_ERR_SPUX_RX_ALIGN_FAIL, + CGX_ERR_SPUX_TX_FAULT, + CGX_ERR_SPUX_RX_FAULT, + CGX_ERR_SPUX_RESET_FAIL, + CGX_ERR_SPUX_AN_RESET_FAIL, + CGX_ERR_SPUX_USX_AN_RESET_FAIL, + CGX_ERR_SMUX_RX_LINK_NOT_OK, + CGX_ERR_PCS_RECV_LINK_FAIL, + CGX_ERR_TRAINING_FAIL, + CGX_ERR_RX_EQU_FAIL, + CGX_ERR_SPUX_BER_FAIL, + CGX_ERR_SPUX_RSFEC_ALGN_FAIL, + CGX_ERR_SPUX_MARKER_LOCK_FAIL, + CGX_ERR_SET_FEC_INVALID, + CGX_ERR_SET_FEC_FAIL, + CGX_ERR_MODULE_INVALID, + CGX_ERR_MODULE_NOT_PRESENT, + CGX_ERR_SPEED_CHANGE_INVALID, +}; + +/* LINK speed types */ +enum cgx_link_speed { + CGX_LINK_NONE, + CGX_LINK_10M, + CGX_LINK_100M, + CGX_LINK_1G, + CGX_LINK_2HG, + CGX_LINK_5G, + CGX_LINK_10G, + CGX_LINK_20G, + CGX_LINK_25G, + CGX_LINK_40G, + CGX_LINK_50G, + CGX_LINK_80G, + CGX_LINK_100G, + CGX_LINK_SPEED_MAX, +}; + +enum CGX_MODE_ { + CGX_MODE_SGMII, + CGX_MODE_1000_BASEX, + CGX_MODE_QSGMII, + CGX_MODE_10G_C2C, + CGX_MODE_10G_C2M, + CGX_MODE_10G_KR, + CGX_MODE_20G_C2C, + CGX_MODE_25G_C2C, + CGX_MODE_25G_C2M, + CGX_MODE_25G_2_C2C, + CGX_MODE_25G_CR, + CGX_MODE_25G_KR, + CGX_MODE_40G_C2C, + CGX_MODE_40G_C2M, + CGX_MODE_40G_CR4, + CGX_MODE_40G_KR4, + CGX_MODE_40GAUI_C2C, + CGX_MODE_50G_C2C, + CGX_MODE_50G_C2M, + CGX_MODE_50G_4_C2C, + CGX_MODE_50G_CR, + CGX_MODE_50G_KR, + CGX_MODE_80GAUI_C2C, + CGX_MODE_100G_C2C, + CGX_MODE_100G_C2M, + CGX_MODE_100G_CR4, + CGX_MODE_100G_KR4, + CGX_MODE_MAX /* = 29 */ +}; +/* REQUEST ID types. Input to firmware */ +enum cgx_cmd_id { + CGX_CMD_NONE, + CGX_CMD_GET_FW_VER, + CGX_CMD_GET_MAC_ADDR, + CGX_CMD_SET_MTU, + CGX_CMD_GET_LINK_STS, /* optional to user */ + CGX_CMD_LINK_BRING_UP, + CGX_CMD_LINK_BRING_DOWN, + CGX_CMD_INTERNAL_LBK, + CGX_CMD_EXTERNAL_LBK, + CGX_CMD_HIGIG, + CGX_CMD_LINK_STAT_CHANGE, + CGX_CMD_MODE_CHANGE, /* hot plug support */ + CGX_CMD_INTF_SHUTDOWN, + CGX_CMD_GET_MKEX_PRFL_SIZE, + CGX_CMD_GET_MKEX_PRFL_ADDR, + CGX_CMD_GET_FWD_BASE, /* get base address of shared FW data */ + CGX_CMD_GET_LINK_MODES, /* Supported Link Modes */ + CGX_CMD_SET_LINK_MODE, + CGX_CMD_GET_SUPPORTED_FEC, + CGX_CMD_SET_FEC, + CGX_CMD_GET_AN, + CGX_CMD_SET_AN, + CGX_CMD_GET_ADV_LINK_MODES, + CGX_CMD_GET_ADV_FEC, + CGX_CMD_GET_PHY_MOD_TYPE, /* line-side modulation type: NRZ or PAM4 */ + CGX_CMD_SET_PHY_MOD_TYPE, + CGX_CMD_PRBS, + CGX_CMD_DISPLAY_EYE, + CGX_CMD_GET_PHY_FEC_STATS, +}; + +/* async event ids */ +enum cgx_evt_id { + CGX_EVT_NONE, + CGX_EVT_LINK_CHANGE, +}; + +/* event types - cause of interrupt */ +enum cgx_evt_type { + CGX_EVT_ASYNC, + CGX_EVT_CMD_RESP +}; + +enum cgx_stat { + CGX_STAT_SUCCESS, + CGX_STAT_FAIL +}; + +enum cgx_cmd_own { + CGX_CMD_OWN_NS, + CGX_CMD_OWN_FIRMWARE, +}; + +/* m - bit mask + * y - value to be written in the bitrange + * x - input value whose bitrange to be modified + */ +#define FIELD_SET(m, y, x) \ + (((x) & ~(m)) | \ + FIELD_PREP((m), (y))) + +/* scratchx(0) CSR used for ATF->non-secure SW communication. + * This acts as the status register + * Provides details on command ack/status, command response, error details + */ +#define EVTREG_ACK BIT_ULL(0) +#define EVTREG_EVT_TYPE BIT_ULL(1) +#define EVTREG_STAT BIT_ULL(2) +#define EVTREG_ID GENMASK_ULL(8, 3) + +/* Response to command IDs with command status as CGX_STAT_FAIL + * + * Not applicable for commands : + * CGX_CMD_LINK_BRING_UP/DOWN/CGX_EVT_LINK_CHANGE + */ +#define EVTREG_ERRTYPE GENMASK_ULL(18, 9) + +/* Response to cmd ID as CGX_CMD_GET_FW_VER with cmd status as + * CGX_STAT_SUCCESS + */ +#define RESP_MAJOR_VER GENMASK_ULL(12, 9) +#define RESP_MINOR_VER GENMASK_ULL(16, 13) + +/* Response to cmd ID as CGX_CMD_GET_MAC_ADDR with cmd status as + * CGX_STAT_SUCCESS + */ +#define RESP_MAC_ADDR GENMASK_ULL(56, 9) + +/* Response to cmd ID as CGX_CMD_GET_MKEX_PRFL_SIZE with cmd status as + * CGX_STAT_SUCCESS + */ +#define RESP_MKEX_PRFL_SIZE GENMASK_ULL(63, 9) + +/* Response to cmd ID as CGX_CMD_GET_MKEX_PRFL_ADDR with cmd status as + * CGX_STAT_SUCCESS + */ +#define RESP_MKEX_PRFL_ADDR GENMASK_ULL(63, 9) + +/* Response to cmd ID as CGX_CMD_GET_FWD_BASE with cmd status as + * CGX_STAT_SUCCESS + */ +#define RESP_FWD_BASE GENMASK_ULL(56, 9) +#define RESP_LINKSTAT_LMAC_TYPE GENMASK_ULL(35, 28) + +/* Response to cmd ID - CGX_CMD_LINK_BRING_UP/DOWN, event ID CGX_EVT_LINK_CHANGE + * status can be either CGX_STAT_FAIL or CGX_STAT_SUCCESS + * + * In case of CGX_STAT_FAIL, it indicates CGX configuration failed + * when processing link up/down/change command. + * Both err_type and current link status will be updated + * + * In case of CGX_STAT_SUCCESS, err_type will be CGX_ERR_NONE and current + * link status will be updated + */ +struct cgx_lnk_sts { + uint64_t reserved1:9; + uint64_t link_up:1; + uint64_t full_duplex:1; + uint64_t speed:4; /* cgx_link_speed */ + uint64_t err_type:10; + uint64_t an:1; /* AN supported or not */ + uint64_t fec:2; /* FEC type if enabled, if not 0 */ + uint64_t port:8; + uint64_t reserved2:28; +}; + +#define RESP_LINKSTAT_UP GENMASK_ULL(9, 9) +#define RESP_LINKSTAT_FDUPLEX GENMASK_ULL(10, 10) +#define RESP_LINKSTAT_SPEED GENMASK_ULL(14, 11) +#define RESP_LINKSTAT_ERRTYPE GENMASK_ULL(24, 15) +#define RESP_LINKSTAT_AN GENMASK_ULL(25, 25) +#define RESP_LINKSTAT_FEC GENMASK_ULL(27, 26) +#define RESP_LINKSTAT_PORT GENMASK_ULL(35, 28) + +/* scratchx(1) CSR used for non-secure SW->ATF communication + * This CSR acts as a command register + */ +#define CMDREG_OWN BIT_ULL(0) +#define CMDREG_ID GENMASK_ULL(7, 2) + +/* Any command using enable/disable as an argument need + * to set this bitfield. + * Ex: Loopback, HiGig... + */ +#define CMDREG_ENABLE BIT_ULL(8) + +/* command argument to be passed for cmd ID - CGX_CMD_SET_MTU */ +#define CMDMTU_SIZE GENMASK_ULL(23, 8) + +/* command argument to be passed for cmd ID - CGX_CMD_LINK_CHANGE */ +#define CMDLINKCHANGE_LINKUP BIT_ULL(8) +#define CMDLINKCHANGE_FULLDPLX BIT_ULL(9) +#define CMDLINKCHANGE_SPEED GENMASK_ULL(13, 10) + +#define CMDSETFEC GENMASK_ULL(9, 8) +/* command argument to be passed for cmd ID - CGX_CMD_MODE_CHANGE */ +#define CMDMODECHANGE_SPEED GENMASK_ULL(11, 8) +#define CMDMODECHANGE_DUPLEX GENMASK_ULL(12, 12) +#define CMDMODECHANGE_AN GENMASK_ULL(13, 13) +#define CMDMODECHANGE_PORT GENMASK_ULL(21, 14) +#define CMDMODECHANGE_FLAGS GENMASK_ULL(63, 22) + +/* LINK_BRING_UP command timeout */ +#define LINKCFG_TIMEOUT GENMASK_ULL(21, 8) +#endif /* __CGX_FW_INTF_H__ */ diff --git a/drivers/net/ethernet/marvell/octeontx2/af/common.h b/drivers/net/ethernet/marvell/octeontx2/af/common.h new file mode 100644 index 000000000..8931864ee --- /dev/null +++ b/drivers/net/ethernet/marvell/octeontx2/af/common.h @@ -0,0 +1,234 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* Marvell RVU Admin Function driver + * + * Copyright (C) 2018 Marvell. + */ + +#ifndef COMMON_H +#define COMMON_H + +#include "rvu_struct.h" + +#define OTX2_ALIGN 128 /* Align to cacheline */ + +#define Q_SIZE_16 0ULL /* 16 entries */ +#define Q_SIZE_64 1ULL /* 64 entries */ +#define Q_SIZE_256 2ULL +#define Q_SIZE_1K 3ULL +#define Q_SIZE_4K 4ULL +#define Q_SIZE_16K 5ULL +#define Q_SIZE_64K 6ULL +#define Q_SIZE_256K 7ULL +#define Q_SIZE_1M 8ULL /* Million entries */ +#define Q_SIZE_MIN Q_SIZE_16 +#define Q_SIZE_MAX Q_SIZE_1M + +#define Q_COUNT(x) (16ULL << (2 * x)) +#define Q_SIZE(x, n) ((ilog2(x) - (n)) / 2) + +/* Admin queue info */ + +/* Since we intend to add only one instruction at a time, + * keep queue size to it's minimum. + */ +#define AQ_SIZE Q_SIZE_16 +/* HW head & tail pointer mask */ +#define AQ_PTR_MASK 0xFFFFF + +struct qmem { + void *base; + dma_addr_t iova; + int alloc_sz; + u16 entry_sz; + u8 align; + u32 qsize; +}; + +static inline int qmem_alloc(struct device *dev, struct qmem **q, + int qsize, int entry_sz) +{ + struct qmem *qmem; + int aligned_addr; + + if (!qsize) + return -EINVAL; + + *q = devm_kzalloc(dev, sizeof(*qmem), GFP_KERNEL); + if (!*q) + return -ENOMEM; + qmem = *q; + + qmem->entry_sz = entry_sz; + qmem->alloc_sz = (qsize * entry_sz) + OTX2_ALIGN; + qmem->base = dma_alloc_attrs(dev, qmem->alloc_sz, &qmem->iova, + GFP_KERNEL, DMA_ATTR_FORCE_CONTIGUOUS); + if (!qmem->base) + return -ENOMEM; + + qmem->qsize = qsize; + + aligned_addr = ALIGN((u64)qmem->iova, OTX2_ALIGN); + qmem->align = (aligned_addr - qmem->iova); + qmem->base += qmem->align; + qmem->iova += qmem->align; + return 0; +} + +static inline void qmem_free(struct device *dev, struct qmem *qmem) +{ + if (!qmem) + return; + + if (qmem->base) + dma_free_attrs(dev, qmem->alloc_sz, + qmem->base - qmem->align, + qmem->iova - qmem->align, + DMA_ATTR_FORCE_CONTIGUOUS); + devm_kfree(dev, qmem); +} + +struct admin_queue { + struct qmem *inst; + struct qmem *res; + spinlock_t lock; /* Serialize inst enqueue from PFs */ +}; + +/* NPA aura count */ +enum npa_aura_sz { + NPA_AURA_SZ_0, + NPA_AURA_SZ_128, + NPA_AURA_SZ_256, + NPA_AURA_SZ_512, + NPA_AURA_SZ_1K, + NPA_AURA_SZ_2K, + NPA_AURA_SZ_4K, + NPA_AURA_SZ_8K, + NPA_AURA_SZ_16K, + NPA_AURA_SZ_32K, + NPA_AURA_SZ_64K, + NPA_AURA_SZ_128K, + NPA_AURA_SZ_256K, + NPA_AURA_SZ_512K, + NPA_AURA_SZ_1M, + NPA_AURA_SZ_MAX, +}; + +#define NPA_AURA_COUNT(x) (1ULL << ((x) + 6)) + +/* NPA AQ result structure for init/read/write of aura HW contexts */ +struct npa_aq_aura_res { + struct npa_aq_res_s res; + struct npa_aura_s aura_ctx; + struct npa_aura_s ctx_mask; +}; + +/* NPA AQ result structure for init/read/write of pool HW contexts */ +struct npa_aq_pool_res { + struct npa_aq_res_s res; + struct npa_pool_s pool_ctx; + struct npa_pool_s ctx_mask; +}; + +/* NIX Transmit schedulers */ +enum nix_scheduler { + NIX_TXSCH_LVL_SMQ = 0x0, + NIX_TXSCH_LVL_MDQ = 0x0, + NIX_TXSCH_LVL_TL4 = 0x1, + NIX_TXSCH_LVL_TL3 = 0x2, + NIX_TXSCH_LVL_TL2 = 0x3, + NIX_TXSCH_LVL_TL1 = 0x4, + NIX_TXSCH_LVL_CNT = 0x5, +}; + +#define TXSCH_RR_QTM_MAX ((1 << 24) - 1) +#define TXSCH_TL1_DFLT_RR_QTM TXSCH_RR_QTM_MAX +#define TXSCH_TL1_DFLT_RR_PRIO (0x1ull) +#define CN10K_MAX_DWRR_WEIGHT 16384 /* Weight is 14bit on CN10K */ + +/* Min/Max packet sizes, excluding FCS */ +#define NIC_HW_MIN_FRS 40 +#define NIC_HW_MAX_FRS 9212 +#define SDP_HW_MAX_FRS 65535 +#define CN10K_LMAC_LINK_MAX_FRS 16380 /* 16k - FCS */ +#define CN10K_LBK_LINK_MAX_FRS 65535 /* 64k */ + +/* NIX RX action operation*/ +#define NIX_RX_ACTIONOP_DROP (0x0ull) +#define NIX_RX_ACTIONOP_UCAST (0x1ull) +#define NIX_RX_ACTIONOP_UCAST_IPSEC (0x2ull) +#define NIX_RX_ACTIONOP_MCAST (0x3ull) +#define NIX_RX_ACTIONOP_RSS (0x4ull) +/* Use the RX action set in the default unicast entry */ +#define NIX_RX_ACTION_DEFAULT (0xfull) + +/* NIX TX action operation*/ +#define NIX_TX_ACTIONOP_DROP (0x0ull) +#define NIX_TX_ACTIONOP_UCAST_DEFAULT (0x1ull) +#define NIX_TX_ACTIONOP_UCAST_CHAN (0x2ull) +#define NIX_TX_ACTIONOP_MCAST (0x3ull) +#define NIX_TX_ACTIONOP_DROP_VIOL (0x5ull) + +#define NPC_MCAM_KEY_X1 0 +#define NPC_MCAM_KEY_X2 1 +#define NPC_MCAM_KEY_X4 2 + +#define NIX_INTFX_RX(a) (0x0ull | (a) << 1) +#define NIX_INTFX_TX(a) (0x1ull | (a) << 1) + +/* Default interfaces are NIX0_RX and NIX0_TX */ +#define NIX_INTF_RX NIX_INTFX_RX(0) +#define NIX_INTF_TX NIX_INTFX_TX(0) + +#define NIX_INTF_TYPE_CGX 0 +#define NIX_INTF_TYPE_LBK 1 +#define NIX_INTF_TYPE_SDP 2 + +#define MAX_LMAC_PKIND 12 +#define NIX_LINK_CGX_LMAC(a, b) (0 + 4 * (a) + (b)) +#define NIX_LINK_LBK(a) (12 + (a)) +#define NIX_CHAN_CGX_LMAC_CHX(a, b, c) (0x800 + 0x100 * (a) + 0x10 * (b) + (c)) +#define NIX_CHAN_LBK_CHX(a, b) (0 + 0x100 * (a) + (b)) +#define NIX_CHAN_SDP_CH_START (0x700ull) +#define NIX_CHAN_SDP_CHX(a) (NIX_CHAN_SDP_CH_START + (a)) +#define NIX_CHAN_SDP_NUM_CHANS 256 +#define NIX_CHAN_CPT_CH_START (0x800ull) + +/* The mask is to extract lower 10-bits of channel number + * which CPT will pass to X2P. + */ +#define NIX_CHAN_CPT_X2P_MASK (0x3ffull) + +/* NIX LSO format indices. + * As of now TSO is the only one using, so statically assigning indices. + */ +#define NIX_LSO_FORMAT_IDX_TSOV4 0 +#define NIX_LSO_FORMAT_IDX_TSOV6 1 + +/* RSS info */ +#define MAX_RSS_GROUPS 8 +/* Group 0 has to be used in default pkt forwarding MCAM entries + * reserved for NIXLFs. Groups 1-7 can be used for RSS for ntuple + * filters. + */ +#define DEFAULT_RSS_CONTEXT_GROUP 0 +#define MAX_RSS_INDIR_TBL_SIZE 256 /* 1 << Max adder bits */ + +/* NDC info */ +enum ndc_idx_e { + NIX0_RX = 0x0, + NIX0_TX = 0x1, + NPA0_U = 0x2, + NIX1_RX = 0x4, + NIX1_TX = 0x5, +}; + +enum ndc_ctype_e { + CACHING = 0x0, + BYPASS = 0x1, +}; + +#define NDC_MAX_PORT 6 +#define NDC_READ_TRANS 0 +#define NDC_WRITE_TRANS 1 + +#endif /* COMMON_H */ diff --git a/drivers/net/ethernet/marvell/octeontx2/af/lmac_common.h b/drivers/net/ethernet/marvell/octeontx2/af/lmac_common.h new file mode 100644 index 000000000..697cfec74 --- /dev/null +++ b/drivers/net/ethernet/marvell/octeontx2/af/lmac_common.h @@ -0,0 +1,158 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* Marvell CN10K RPM driver + * + * Copyright (C) 2020 Marvell. + * + */ + +#ifndef LMAC_COMMON_H +#define LMAC_COMMON_H + +#include "rvu.h" +#include "cgx.h" +/** + * struct lmac - per lmac locks and properties + * @wq_cmd_cmplt: waitq to keep the process blocked until cmd completion + * @cmd_lock: Lock to serialize the command interface + * @resp: command response + * @link_info: link related information + * @mac_to_index_bmap: Mac address to CGX table index mapping + * @rx_fc_pfvf_bmap: Receive flow control enabled netdev mapping + * @tx_fc_pfvf_bmap: Transmit flow control enabled netdev mapping + * @event_cb: callback for linkchange events + * @event_cb_lock: lock for serializing callback with unregister + * @cgx: parent cgx port + * @mcast_filters_count: Number of multicast filters installed + * @lmac_id: lmac port id + * @cmd_pend: flag set before new command is started + * flag cleared after command response is received + * @name: lmac port name + */ +struct lmac { + wait_queue_head_t wq_cmd_cmplt; + /* Lock to serialize the command interface */ + struct mutex cmd_lock; + u64 resp; + struct cgx_link_user_info link_info; + struct rsrc_bmap mac_to_index_bmap; + struct rsrc_bmap rx_fc_pfvf_bmap; + struct rsrc_bmap tx_fc_pfvf_bmap; + struct cgx_event_cb event_cb; + /* lock for serializing callback with unregister */ + spinlock_t event_cb_lock; + struct cgx *cgx; + u8 mcast_filters_count; + u8 lmac_id; + bool cmd_pend; + char *name; +}; + +/* CGX & RPM has different feature set + * update the structure fields with different one + */ +struct mac_ops { + char *name; + /* Features like RXSTAT, TXSTAT, DMAC FILTER csrs differs by fixed + * bar offset for example + * CGX DMAC_CTL0 0x1f8 + * RPM DMAC_CTL0 0x4ff8 + */ + u64 csr_offset; + /* For ATF to send events to kernel, there is no dedicated interrupt + * defined hence CGX uses OVERFLOW bit in CMR_INT. RPM block supports + * SW_INT so that ATF triggers this interrupt after processing of + * requested command + */ + u64 int_register; + u64 int_set_reg; + /* lmac offset is different is RPM */ + u8 lmac_offset; + u8 irq_offset; + u8 int_ena_bit; + u8 lmac_fwi; + u32 fifo_len; + bool non_contiguous_serdes_lane; + /* RPM & CGX differs in number of Receive/transmit stats */ + u8 rx_stats_cnt; + u8 tx_stats_cnt; + /* Incase of RPM get number of lmacs from RPMX_CMR_RX_LMACS[LMAC_EXIST] + * number of setbits in lmac_exist tells number of lmacs + */ + int (*get_nr_lmacs)(void *cgx); + u8 (*get_lmac_type)(void *cgx, int lmac_id); + u32 (*lmac_fifo_len)(void *cgx, int lmac_id); + int (*mac_lmac_intl_lbk)(void *cgx, int lmac_id, + bool enable); + /* Register Stats related functions */ + int (*mac_get_rx_stats)(void *cgx, int lmac_id, + int idx, u64 *rx_stat); + int (*mac_get_tx_stats)(void *cgx, int lmac_id, + int idx, u64 *tx_stat); + + /* Enable LMAC Pause Frame Configuration */ + void (*mac_enadis_rx_pause_fwding)(void *cgxd, + int lmac_id, + bool enable); + + int (*mac_get_pause_frm_status)(void *cgxd, + int lmac_id, + u8 *tx_pause, + u8 *rx_pause); + + int (*mac_enadis_pause_frm)(void *cgxd, + int lmac_id, + u8 tx_pause, + u8 rx_pause); + + void (*mac_pause_frm_config)(void *cgxd, + int lmac_id, + bool enable); + + /* Enable/Disable Inbound PTP */ + void (*mac_enadis_ptp_config)(void *cgxd, + int lmac_id, + bool enable); + + int (*mac_rx_tx_enable)(void *cgxd, int lmac_id, bool enable); + int (*mac_tx_enable)(void *cgxd, int lmac_id, bool enable); + int (*pfc_config)(void *cgxd, int lmac_id, + u8 tx_pause, u8 rx_pause, u16 pfc_en); + + int (*mac_get_pfc_frm_cfg)(void *cgxd, int lmac_id, + u8 *tx_pause, u8 *rx_pause); + +}; + +struct cgx { + void __iomem *reg_base; + struct pci_dev *pdev; + u8 cgx_id; + u8 lmac_count; + /* number of LMACs per MAC could be 4 or 8 */ + u8 max_lmac_per_mac; +#define MAX_LMAC_COUNT 8 + struct lmac *lmac_idmap[MAX_LMAC_COUNT]; + struct work_struct cgx_cmd_work; + struct workqueue_struct *cgx_cmd_workq; + struct list_head cgx_list; + u64 hw_features; + struct mac_ops *mac_ops; + unsigned long lmac_bmap; /* bitmap of enabled lmacs */ + /* Lock to serialize read/write of global csrs like + * RPMX_MTI_STAT_DATA_HI_CDC etc + */ + struct mutex lock; +}; + +typedef struct cgx rpm_t; + +/* Function Declarations */ +void cgx_write(struct cgx *cgx, u64 lmac, u64 offset, u64 val); +u64 cgx_read(struct cgx *cgx, u64 lmac, u64 offset); +struct lmac *lmac_pdata(u8 lmac_id, struct cgx *cgx); +int cgx_fwi_cmd_send(u64 req, u64 *resp, struct lmac *lmac); +int cgx_fwi_cmd_generic(u64 req, u64 *resp, struct cgx *cgx, int lmac_id); +bool is_lmac_valid(struct cgx *cgx, int lmac_id); +struct mac_ops *rpm_get_mac_ops(void); + +#endif /* LMAC_COMMON_H */ diff --git a/drivers/net/ethernet/marvell/octeontx2/af/mbox.c b/drivers/net/ethernet/marvell/octeontx2/af/mbox.c new file mode 100644 index 000000000..9690ac01f --- /dev/null +++ b/drivers/net/ethernet/marvell/octeontx2/af/mbox.c @@ -0,0 +1,416 @@ +// SPDX-License-Identifier: GPL-2.0 +/* Marvell RVU Admin Function driver + * + * Copyright (C) 2018 Marvell. + * + */ + +#include <linux/module.h> +#include <linux/interrupt.h> +#include <linux/pci.h> + +#include "rvu_reg.h" +#include "mbox.h" +#include "rvu_trace.h" + +static const u16 msgs_offset = ALIGN(sizeof(struct mbox_hdr), MBOX_MSG_ALIGN); + +void __otx2_mbox_reset(struct otx2_mbox *mbox, int devid) +{ + struct otx2_mbox_dev *mdev = &mbox->dev[devid]; + struct mbox_hdr *tx_hdr, *rx_hdr; + void *hw_mbase = mdev->hwbase; + + tx_hdr = hw_mbase + mbox->tx_start; + rx_hdr = hw_mbase + mbox->rx_start; + + mdev->msg_size = 0; + mdev->rsp_size = 0; + tx_hdr->num_msgs = 0; + tx_hdr->msg_size = 0; + rx_hdr->num_msgs = 0; + rx_hdr->msg_size = 0; +} +EXPORT_SYMBOL(__otx2_mbox_reset); + +void otx2_mbox_reset(struct otx2_mbox *mbox, int devid) +{ + struct otx2_mbox_dev *mdev = &mbox->dev[devid]; + + spin_lock(&mdev->mbox_lock); + __otx2_mbox_reset(mbox, devid); + spin_unlock(&mdev->mbox_lock); +} +EXPORT_SYMBOL(otx2_mbox_reset); + +void otx2_mbox_destroy(struct otx2_mbox *mbox) +{ + mbox->reg_base = NULL; + mbox->hwbase = NULL; + + kfree(mbox->dev); + mbox->dev = NULL; +} +EXPORT_SYMBOL(otx2_mbox_destroy); + +static int otx2_mbox_setup(struct otx2_mbox *mbox, struct pci_dev *pdev, + void *reg_base, int direction, int ndevs) +{ + switch (direction) { + case MBOX_DIR_AFPF: + case MBOX_DIR_PFVF: + mbox->tx_start = MBOX_DOWN_TX_START; + mbox->rx_start = MBOX_DOWN_RX_START; + mbox->tx_size = MBOX_DOWN_TX_SIZE; + mbox->rx_size = MBOX_DOWN_RX_SIZE; + break; + case MBOX_DIR_PFAF: + case MBOX_DIR_VFPF: + mbox->tx_start = MBOX_DOWN_RX_START; + mbox->rx_start = MBOX_DOWN_TX_START; + mbox->tx_size = MBOX_DOWN_RX_SIZE; + mbox->rx_size = MBOX_DOWN_TX_SIZE; + break; + case MBOX_DIR_AFPF_UP: + case MBOX_DIR_PFVF_UP: + mbox->tx_start = MBOX_UP_TX_START; + mbox->rx_start = MBOX_UP_RX_START; + mbox->tx_size = MBOX_UP_TX_SIZE; + mbox->rx_size = MBOX_UP_RX_SIZE; + break; + case MBOX_DIR_PFAF_UP: + case MBOX_DIR_VFPF_UP: + mbox->tx_start = MBOX_UP_RX_START; + mbox->rx_start = MBOX_UP_TX_START; + mbox->tx_size = MBOX_UP_RX_SIZE; + mbox->rx_size = MBOX_UP_TX_SIZE; + break; + default: + return -ENODEV; + } + + switch (direction) { + case MBOX_DIR_AFPF: + case MBOX_DIR_AFPF_UP: + mbox->trigger = RVU_AF_AFPF_MBOX0; + mbox->tr_shift = 4; + break; + case MBOX_DIR_PFAF: + case MBOX_DIR_PFAF_UP: + mbox->trigger = RVU_PF_PFAF_MBOX1; + mbox->tr_shift = 0; + break; + case MBOX_DIR_PFVF: + case MBOX_DIR_PFVF_UP: + mbox->trigger = RVU_PF_VFX_PFVF_MBOX0; + mbox->tr_shift = 12; + break; + case MBOX_DIR_VFPF: + case MBOX_DIR_VFPF_UP: + mbox->trigger = RVU_VF_VFPF_MBOX1; + mbox->tr_shift = 0; + break; + default: + return -ENODEV; + } + + mbox->reg_base = reg_base; + mbox->pdev = pdev; + + mbox->dev = kcalloc(ndevs, sizeof(struct otx2_mbox_dev), GFP_KERNEL); + if (!mbox->dev) { + otx2_mbox_destroy(mbox); + return -ENOMEM; + } + mbox->ndevs = ndevs; + + return 0; +} + +int otx2_mbox_init(struct otx2_mbox *mbox, void *hwbase, struct pci_dev *pdev, + void *reg_base, int direction, int ndevs) +{ + struct otx2_mbox_dev *mdev; + int devid, err; + + err = otx2_mbox_setup(mbox, pdev, reg_base, direction, ndevs); + if (err) + return err; + + mbox->hwbase = hwbase; + + for (devid = 0; devid < ndevs; devid++) { + mdev = &mbox->dev[devid]; + mdev->mbase = mbox->hwbase + (devid * MBOX_SIZE); + mdev->hwbase = mdev->mbase; + spin_lock_init(&mdev->mbox_lock); + /* Init header to reset value */ + otx2_mbox_reset(mbox, devid); + } + + return 0; +} +EXPORT_SYMBOL(otx2_mbox_init); + +/* Initialize mailbox with the set of mailbox region addresses + * in the array hwbase. + */ +int otx2_mbox_regions_init(struct otx2_mbox *mbox, void **hwbase, + struct pci_dev *pdev, void *reg_base, + int direction, int ndevs, unsigned long *pf_bmap) +{ + struct otx2_mbox_dev *mdev; + int devid, err; + + err = otx2_mbox_setup(mbox, pdev, reg_base, direction, ndevs); + if (err) + return err; + + mbox->hwbase = hwbase[0]; + + for (devid = 0; devid < ndevs; devid++) { + if (!test_bit(devid, pf_bmap)) + continue; + + mdev = &mbox->dev[devid]; + mdev->mbase = hwbase[devid]; + mdev->hwbase = hwbase[devid]; + spin_lock_init(&mdev->mbox_lock); + /* Init header to reset value */ + otx2_mbox_reset(mbox, devid); + } + + return 0; +} +EXPORT_SYMBOL(otx2_mbox_regions_init); + +int otx2_mbox_wait_for_rsp(struct otx2_mbox *mbox, int devid) +{ + unsigned long timeout = jiffies + msecs_to_jiffies(MBOX_RSP_TIMEOUT); + struct otx2_mbox_dev *mdev = &mbox->dev[devid]; + struct device *sender = &mbox->pdev->dev; + + while (!time_after(jiffies, timeout)) { + if (mdev->num_msgs == mdev->msgs_acked) + return 0; + usleep_range(800, 1000); + } + dev_dbg(sender, "timed out while waiting for rsp\n"); + return -EIO; +} +EXPORT_SYMBOL(otx2_mbox_wait_for_rsp); + +int otx2_mbox_busy_poll_for_rsp(struct otx2_mbox *mbox, int devid) +{ + struct otx2_mbox_dev *mdev = &mbox->dev[devid]; + unsigned long timeout = jiffies + 1 * HZ; + + while (!time_after(jiffies, timeout)) { + if (mdev->num_msgs == mdev->msgs_acked) + return 0; + cpu_relax(); + } + return -EIO; +} +EXPORT_SYMBOL(otx2_mbox_busy_poll_for_rsp); + +void otx2_mbox_msg_send(struct otx2_mbox *mbox, int devid) +{ + struct otx2_mbox_dev *mdev = &mbox->dev[devid]; + struct mbox_hdr *tx_hdr, *rx_hdr; + void *hw_mbase = mdev->hwbase; + + tx_hdr = hw_mbase + mbox->tx_start; + rx_hdr = hw_mbase + mbox->rx_start; + + /* If bounce buffer is implemented copy mbox messages from + * bounce buffer to hw mbox memory. + */ + if (mdev->mbase != hw_mbase) + memcpy(hw_mbase + mbox->tx_start + msgs_offset, + mdev->mbase + mbox->tx_start + msgs_offset, + mdev->msg_size); + + spin_lock(&mdev->mbox_lock); + + tx_hdr->msg_size = mdev->msg_size; + + /* Reset header for next messages */ + mdev->msg_size = 0; + mdev->rsp_size = 0; + mdev->msgs_acked = 0; + + /* Sync mbox data into memory */ + smp_wmb(); + + /* num_msgs != 0 signals to the peer that the buffer has a number of + * messages. So this should be written after writing all the messages + * to the shared memory. + */ + tx_hdr->num_msgs = mdev->num_msgs; + rx_hdr->num_msgs = 0; + + trace_otx2_msg_send(mbox->pdev, tx_hdr->num_msgs, tx_hdr->msg_size); + + spin_unlock(&mdev->mbox_lock); + + /* The interrupt should be fired after num_msgs is written + * to the shared memory + */ + writeq(1, (void __iomem *)mbox->reg_base + + (mbox->trigger | (devid << mbox->tr_shift))); +} +EXPORT_SYMBOL(otx2_mbox_msg_send); + +struct mbox_msghdr *otx2_mbox_alloc_msg_rsp(struct otx2_mbox *mbox, int devid, + int size, int size_rsp) +{ + struct otx2_mbox_dev *mdev = &mbox->dev[devid]; + struct mbox_msghdr *msghdr = NULL; + + spin_lock(&mdev->mbox_lock); + size = ALIGN(size, MBOX_MSG_ALIGN); + size_rsp = ALIGN(size_rsp, MBOX_MSG_ALIGN); + /* Check if there is space in mailbox */ + if ((mdev->msg_size + size) > mbox->tx_size - msgs_offset) + goto exit; + if ((mdev->rsp_size + size_rsp) > mbox->rx_size - msgs_offset) + goto exit; + + if (mdev->msg_size == 0) + mdev->num_msgs = 0; + mdev->num_msgs++; + + msghdr = mdev->mbase + mbox->tx_start + msgs_offset + mdev->msg_size; + + /* Clear the whole msg region */ + memset(msghdr, 0, size); + /* Init message header with reset values */ + msghdr->ver = OTX2_MBOX_VERSION; + mdev->msg_size += size; + mdev->rsp_size += size_rsp; + msghdr->next_msgoff = mdev->msg_size + msgs_offset; +exit: + spin_unlock(&mdev->mbox_lock); + + return msghdr; +} +EXPORT_SYMBOL(otx2_mbox_alloc_msg_rsp); + +struct mbox_msghdr *otx2_mbox_get_rsp(struct otx2_mbox *mbox, int devid, + struct mbox_msghdr *msg) +{ + unsigned long imsg = mbox->tx_start + msgs_offset; + unsigned long irsp = mbox->rx_start + msgs_offset; + struct otx2_mbox_dev *mdev = &mbox->dev[devid]; + u16 msgs; + + spin_lock(&mdev->mbox_lock); + + if (mdev->num_msgs != mdev->msgs_acked) + goto error; + + for (msgs = 0; msgs < mdev->msgs_acked; msgs++) { + struct mbox_msghdr *pmsg = mdev->mbase + imsg; + struct mbox_msghdr *prsp = mdev->mbase + irsp; + + if (msg == pmsg) { + if (pmsg->id != prsp->id) + goto error; + spin_unlock(&mdev->mbox_lock); + return prsp; + } + + imsg = mbox->tx_start + pmsg->next_msgoff; + irsp = mbox->rx_start + prsp->next_msgoff; + } + +error: + spin_unlock(&mdev->mbox_lock); + return ERR_PTR(-ENODEV); +} +EXPORT_SYMBOL(otx2_mbox_get_rsp); + +int otx2_mbox_check_rsp_msgs(struct otx2_mbox *mbox, int devid) +{ + unsigned long ireq = mbox->tx_start + msgs_offset; + unsigned long irsp = mbox->rx_start + msgs_offset; + struct otx2_mbox_dev *mdev = &mbox->dev[devid]; + int rc = -ENODEV; + u16 msgs; + + spin_lock(&mdev->mbox_lock); + + if (mdev->num_msgs != mdev->msgs_acked) + goto exit; + + for (msgs = 0; msgs < mdev->msgs_acked; msgs++) { + struct mbox_msghdr *preq = mdev->mbase + ireq; + struct mbox_msghdr *prsp = mdev->mbase + irsp; + + if (preq->id != prsp->id) { + trace_otx2_msg_check(mbox->pdev, preq->id, + prsp->id, prsp->rc); + goto exit; + } + if (prsp->rc) { + rc = prsp->rc; + trace_otx2_msg_check(mbox->pdev, preq->id, + prsp->id, prsp->rc); + goto exit; + } + + ireq = mbox->tx_start + preq->next_msgoff; + irsp = mbox->rx_start + prsp->next_msgoff; + } + rc = 0; +exit: + spin_unlock(&mdev->mbox_lock); + return rc; +} +EXPORT_SYMBOL(otx2_mbox_check_rsp_msgs); + +int +otx2_reply_invalid_msg(struct otx2_mbox *mbox, int devid, u16 pcifunc, u16 id) +{ + struct msg_rsp *rsp; + + rsp = (struct msg_rsp *) + otx2_mbox_alloc_msg(mbox, devid, sizeof(*rsp)); + if (!rsp) + return -ENOMEM; + rsp->hdr.id = id; + rsp->hdr.sig = OTX2_MBOX_RSP_SIG; + rsp->hdr.rc = MBOX_MSG_INVALID; + rsp->hdr.pcifunc = pcifunc; + return 0; +} +EXPORT_SYMBOL(otx2_reply_invalid_msg); + +bool otx2_mbox_nonempty(struct otx2_mbox *mbox, int devid) +{ + struct otx2_mbox_dev *mdev = &mbox->dev[devid]; + bool ret; + + spin_lock(&mdev->mbox_lock); + ret = mdev->num_msgs != 0; + spin_unlock(&mdev->mbox_lock); + + return ret; +} +EXPORT_SYMBOL(otx2_mbox_nonempty); + +const char *otx2_mbox_id2name(u16 id) +{ + switch (id) { +#define M(_name, _id, _1, _2, _3) case _id: return # _name; + MBOX_MESSAGES +#undef M + default: + return "INVALID ID"; + } +} +EXPORT_SYMBOL(otx2_mbox_id2name); + +MODULE_AUTHOR("Marvell."); +MODULE_LICENSE("GPL v2"); diff --git a/drivers/net/ethernet/marvell/octeontx2/af/mbox.h b/drivers/net/ethernet/marvell/octeontx2/af/mbox.h new file mode 100644 index 000000000..03ebabd61 --- /dev/null +++ b/drivers/net/ethernet/marvell/octeontx2/af/mbox.h @@ -0,0 +1,2153 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* Marvell RVU Admin Function driver + * + * Copyright (C) 2018 Marvell. + * + */ + +#ifndef MBOX_H +#define MBOX_H + +#include <linux/etherdevice.h> +#include <linux/sizes.h> + +#include "rvu_struct.h" +#include "common.h" + +#define MBOX_SIZE SZ_64K + +/* AF/PF: PF initiated, PF/VF VF initiated */ +#define MBOX_DOWN_RX_START 0 +#define MBOX_DOWN_RX_SIZE (46 * SZ_1K) +#define MBOX_DOWN_TX_START (MBOX_DOWN_RX_START + MBOX_DOWN_RX_SIZE) +#define MBOX_DOWN_TX_SIZE (16 * SZ_1K) +/* AF/PF: AF initiated, PF/VF PF initiated */ +#define MBOX_UP_RX_START (MBOX_DOWN_TX_START + MBOX_DOWN_TX_SIZE) +#define MBOX_UP_RX_SIZE SZ_1K +#define MBOX_UP_TX_START (MBOX_UP_RX_START + MBOX_UP_RX_SIZE) +#define MBOX_UP_TX_SIZE SZ_1K + +#if MBOX_UP_TX_SIZE + MBOX_UP_TX_START != MBOX_SIZE +# error "incorrect mailbox area sizes" +#endif + +#define INTR_MASK(pfvfs) ((pfvfs < 64) ? (BIT_ULL(pfvfs) - 1) : (~0ull)) + +#define MBOX_RSP_TIMEOUT 6000 /* Time(ms) to wait for mbox response */ + +#define MBOX_MSG_ALIGN 16 /* Align mbox msg start to 16bytes */ + +/* Mailbox directions */ +#define MBOX_DIR_AFPF 0 /* AF replies to PF */ +#define MBOX_DIR_PFAF 1 /* PF sends messages to AF */ +#define MBOX_DIR_PFVF 2 /* PF replies to VF */ +#define MBOX_DIR_VFPF 3 /* VF sends messages to PF */ +#define MBOX_DIR_AFPF_UP 4 /* AF sends messages to PF */ +#define MBOX_DIR_PFAF_UP 5 /* PF replies to AF */ +#define MBOX_DIR_PFVF_UP 6 /* PF sends messages to VF */ +#define MBOX_DIR_VFPF_UP 7 /* VF replies to PF */ + +struct otx2_mbox_dev { + void *mbase; /* This dev's mbox region */ + void *hwbase; + spinlock_t mbox_lock; + u16 msg_size; /* Total msg size to be sent */ + u16 rsp_size; /* Total rsp size to be sure the reply is ok */ + u16 num_msgs; /* No of msgs sent or waiting for response */ + u16 msgs_acked; /* No of msgs for which response is received */ +}; + +struct otx2_mbox { + struct pci_dev *pdev; + void *hwbase; /* Mbox region advertised by HW */ + void *reg_base;/* CSR base for this dev */ + u64 trigger; /* Trigger mbox notification */ + u16 tr_shift; /* Mbox trigger shift */ + u64 rx_start; /* Offset of Rx region in mbox memory */ + u64 tx_start; /* Offset of Tx region in mbox memory */ + u16 rx_size; /* Size of Rx region */ + u16 tx_size; /* Size of Tx region */ + u16 ndevs; /* The number of peers */ + struct otx2_mbox_dev *dev; +}; + +/* Header which precedes all mbox messages */ +struct mbox_hdr { + u64 msg_size; /* Total msgs size embedded */ + u16 num_msgs; /* No of msgs embedded */ +}; + +/* Header which precedes every msg and is also part of it */ +struct mbox_msghdr { + u16 pcifunc; /* Who's sending this msg */ + u16 id; /* Mbox message ID */ +#define OTX2_MBOX_REQ_SIG (0xdead) +#define OTX2_MBOX_RSP_SIG (0xbeef) + u16 sig; /* Signature, for validating corrupted msgs */ +#define OTX2_MBOX_VERSION (0x000a) + u16 ver; /* Version of msg's structure for this ID */ + u16 next_msgoff; /* Offset of next msg within mailbox region */ + int rc; /* Msg process'ed response code */ +}; + +void otx2_mbox_reset(struct otx2_mbox *mbox, int devid); +void __otx2_mbox_reset(struct otx2_mbox *mbox, int devid); +void otx2_mbox_destroy(struct otx2_mbox *mbox); +int otx2_mbox_init(struct otx2_mbox *mbox, void __force *hwbase, + struct pci_dev *pdev, void __force *reg_base, + int direction, int ndevs); + +int otx2_mbox_regions_init(struct otx2_mbox *mbox, void __force **hwbase, + struct pci_dev *pdev, void __force *reg_base, + int direction, int ndevs, unsigned long *bmap); +void otx2_mbox_msg_send(struct otx2_mbox *mbox, int devid); +int otx2_mbox_wait_for_rsp(struct otx2_mbox *mbox, int devid); +int otx2_mbox_busy_poll_for_rsp(struct otx2_mbox *mbox, int devid); +struct mbox_msghdr *otx2_mbox_alloc_msg_rsp(struct otx2_mbox *mbox, int devid, + int size, int size_rsp); +struct mbox_msghdr *otx2_mbox_get_rsp(struct otx2_mbox *mbox, int devid, + struct mbox_msghdr *msg); +int otx2_mbox_check_rsp_msgs(struct otx2_mbox *mbox, int devid); +int otx2_reply_invalid_msg(struct otx2_mbox *mbox, int devid, + u16 pcifunc, u16 id); +bool otx2_mbox_nonempty(struct otx2_mbox *mbox, int devid); +const char *otx2_mbox_id2name(u16 id); +static inline struct mbox_msghdr *otx2_mbox_alloc_msg(struct otx2_mbox *mbox, + int devid, int size) +{ + return otx2_mbox_alloc_msg_rsp(mbox, devid, size, 0); +} + +/* Mailbox message types */ +#define MBOX_MSG_MASK 0xFFFF +#define MBOX_MSG_INVALID 0xFFFE +#define MBOX_MSG_MAX 0xFFFF + +#define MBOX_MESSAGES \ +/* Generic mbox IDs (range 0x000 - 0x1FF) */ \ +M(READY, 0x001, ready, msg_req, ready_msg_rsp) \ +M(ATTACH_RESOURCES, 0x002, attach_resources, rsrc_attach, msg_rsp) \ +M(DETACH_RESOURCES, 0x003, detach_resources, rsrc_detach, msg_rsp) \ +M(FREE_RSRC_CNT, 0x004, free_rsrc_cnt, msg_req, free_rsrcs_rsp) \ +M(MSIX_OFFSET, 0x005, msix_offset, msg_req, msix_offset_rsp) \ +M(VF_FLR, 0x006, vf_flr, msg_req, msg_rsp) \ +M(PTP_OP, 0x007, ptp_op, ptp_req, ptp_rsp) \ +M(GET_HW_CAP, 0x008, get_hw_cap, msg_req, get_hw_cap_rsp) \ +M(LMTST_TBL_SETUP, 0x00a, lmtst_tbl_setup, lmtst_tbl_setup_req, \ + msg_rsp) \ +M(SET_VF_PERM, 0x00b, set_vf_perm, set_vf_perm, msg_rsp) \ +/* CGX mbox IDs (range 0x200 - 0x3FF) */ \ +M(CGX_START_RXTX, 0x200, cgx_start_rxtx, msg_req, msg_rsp) \ +M(CGX_STOP_RXTX, 0x201, cgx_stop_rxtx, msg_req, msg_rsp) \ +M(CGX_STATS, 0x202, cgx_stats, msg_req, cgx_stats_rsp) \ +M(CGX_MAC_ADDR_SET, 0x203, cgx_mac_addr_set, cgx_mac_addr_set_or_get, \ + cgx_mac_addr_set_or_get) \ +M(CGX_MAC_ADDR_GET, 0x204, cgx_mac_addr_get, cgx_mac_addr_set_or_get, \ + cgx_mac_addr_set_or_get) \ +M(CGX_PROMISC_ENABLE, 0x205, cgx_promisc_enable, msg_req, msg_rsp) \ +M(CGX_PROMISC_DISABLE, 0x206, cgx_promisc_disable, msg_req, msg_rsp) \ +M(CGX_START_LINKEVENTS, 0x207, cgx_start_linkevents, msg_req, msg_rsp) \ +M(CGX_STOP_LINKEVENTS, 0x208, cgx_stop_linkevents, msg_req, msg_rsp) \ +M(CGX_GET_LINKINFO, 0x209, cgx_get_linkinfo, msg_req, cgx_link_info_msg) \ +M(CGX_INTLBK_ENABLE, 0x20A, cgx_intlbk_enable, msg_req, msg_rsp) \ +M(CGX_INTLBK_DISABLE, 0x20B, cgx_intlbk_disable, msg_req, msg_rsp) \ +M(CGX_PTP_RX_ENABLE, 0x20C, cgx_ptp_rx_enable, msg_req, msg_rsp) \ +M(CGX_PTP_RX_DISABLE, 0x20D, cgx_ptp_rx_disable, msg_req, msg_rsp) \ +M(CGX_CFG_PAUSE_FRM, 0x20E, cgx_cfg_pause_frm, cgx_pause_frm_cfg, \ + cgx_pause_frm_cfg) \ +M(CGX_FW_DATA_GET, 0x20F, cgx_get_aux_link_info, msg_req, cgx_fw_data) \ +M(CGX_FEC_SET, 0x210, cgx_set_fec_param, fec_mode, fec_mode) \ +M(CGX_MAC_ADDR_ADD, 0x211, cgx_mac_addr_add, cgx_mac_addr_add_req, \ + cgx_mac_addr_add_rsp) \ +M(CGX_MAC_ADDR_DEL, 0x212, cgx_mac_addr_del, cgx_mac_addr_del_req, \ + msg_rsp) \ +M(CGX_MAC_MAX_ENTRIES_GET, 0x213, cgx_mac_max_entries_get, msg_req, \ + cgx_max_dmac_entries_get_rsp) \ +M(CGX_FEC_STATS, 0x217, cgx_fec_stats, msg_req, cgx_fec_stats_rsp) \ +M(CGX_SET_LINK_MODE, 0x218, cgx_set_link_mode, cgx_set_link_mode_req,\ + cgx_set_link_mode_rsp) \ +M(CGX_GET_PHY_FEC_STATS, 0x219, cgx_get_phy_fec_stats, msg_req, msg_rsp) \ +M(CGX_FEATURES_GET, 0x21B, cgx_features_get, msg_req, \ + cgx_features_info_msg) \ +M(RPM_STATS, 0x21C, rpm_stats, msg_req, rpm_stats_rsp) \ +M(CGX_MAC_ADDR_RESET, 0x21D, cgx_mac_addr_reset, cgx_mac_addr_reset_req, \ + msg_rsp) \ +M(CGX_MAC_ADDR_UPDATE, 0x21E, cgx_mac_addr_update, cgx_mac_addr_update_req, \ + cgx_mac_addr_update_rsp) \ +M(CGX_PRIO_FLOW_CTRL_CFG, 0x21F, cgx_prio_flow_ctrl_cfg, cgx_pfc_cfg, \ + cgx_pfc_rsp) \ +/* NPA mbox IDs (range 0x400 - 0x5FF) */ \ +M(NPA_LF_ALLOC, 0x400, npa_lf_alloc, \ + npa_lf_alloc_req, npa_lf_alloc_rsp) \ +M(NPA_LF_FREE, 0x401, npa_lf_free, msg_req, msg_rsp) \ +M(NPA_AQ_ENQ, 0x402, npa_aq_enq, npa_aq_enq_req, npa_aq_enq_rsp) \ +M(NPA_HWCTX_DISABLE, 0x403, npa_hwctx_disable, hwctx_disable_req, msg_rsp)\ +/* SSO/SSOW mbox IDs (range 0x600 - 0x7FF) */ \ +/* TIM mbox IDs (range 0x800 - 0x9FF) */ \ +/* CPT mbox IDs (range 0xA00 - 0xBFF) */ \ +M(CPT_LF_ALLOC, 0xA00, cpt_lf_alloc, cpt_lf_alloc_req_msg, \ + msg_rsp) \ +M(CPT_LF_FREE, 0xA01, cpt_lf_free, msg_req, msg_rsp) \ +M(CPT_RD_WR_REGISTER, 0xA02, cpt_rd_wr_register, cpt_rd_wr_reg_msg, \ + cpt_rd_wr_reg_msg) \ +M(CPT_INLINE_IPSEC_CFG, 0xA04, cpt_inline_ipsec_cfg, \ + cpt_inline_ipsec_cfg_msg, msg_rsp) \ +M(CPT_STATS, 0xA05, cpt_sts, cpt_sts_req, cpt_sts_rsp) \ +M(CPT_RXC_TIME_CFG, 0xA06, cpt_rxc_time_cfg, cpt_rxc_time_cfg_req, \ + msg_rsp) \ +M(CPT_CTX_CACHE_SYNC, 0xA07, cpt_ctx_cache_sync, msg_req, msg_rsp) \ +/* SDP mbox IDs (range 0x1000 - 0x11FF) */ \ +M(SET_SDP_CHAN_INFO, 0x1000, set_sdp_chan_info, sdp_chan_info_msg, msg_rsp) \ +M(GET_SDP_CHAN_INFO, 0x1001, get_sdp_chan_info, msg_req, sdp_get_chan_info_msg) \ +/* NPC mbox IDs (range 0x6000 - 0x7FFF) */ \ +M(NPC_MCAM_ALLOC_ENTRY, 0x6000, npc_mcam_alloc_entry, npc_mcam_alloc_entry_req,\ + npc_mcam_alloc_entry_rsp) \ +M(NPC_MCAM_FREE_ENTRY, 0x6001, npc_mcam_free_entry, \ + npc_mcam_free_entry_req, msg_rsp) \ +M(NPC_MCAM_WRITE_ENTRY, 0x6002, npc_mcam_write_entry, \ + npc_mcam_write_entry_req, msg_rsp) \ +M(NPC_MCAM_ENA_ENTRY, 0x6003, npc_mcam_ena_entry, \ + npc_mcam_ena_dis_entry_req, msg_rsp) \ +M(NPC_MCAM_DIS_ENTRY, 0x6004, npc_mcam_dis_entry, \ + npc_mcam_ena_dis_entry_req, msg_rsp) \ +M(NPC_MCAM_SHIFT_ENTRY, 0x6005, npc_mcam_shift_entry, npc_mcam_shift_entry_req,\ + npc_mcam_shift_entry_rsp) \ +M(NPC_MCAM_ALLOC_COUNTER, 0x6006, npc_mcam_alloc_counter, \ + npc_mcam_alloc_counter_req, \ + npc_mcam_alloc_counter_rsp) \ +M(NPC_MCAM_FREE_COUNTER, 0x6007, npc_mcam_free_counter, \ + npc_mcam_oper_counter_req, msg_rsp) \ +M(NPC_MCAM_UNMAP_COUNTER, 0x6008, npc_mcam_unmap_counter, \ + npc_mcam_unmap_counter_req, msg_rsp) \ +M(NPC_MCAM_CLEAR_COUNTER, 0x6009, npc_mcam_clear_counter, \ + npc_mcam_oper_counter_req, msg_rsp) \ +M(NPC_MCAM_COUNTER_STATS, 0x600a, npc_mcam_counter_stats, \ + npc_mcam_oper_counter_req, \ + npc_mcam_oper_counter_rsp) \ +M(NPC_MCAM_ALLOC_AND_WRITE_ENTRY, 0x600b, npc_mcam_alloc_and_write_entry, \ + npc_mcam_alloc_and_write_entry_req, \ + npc_mcam_alloc_and_write_entry_rsp) \ +M(NPC_GET_KEX_CFG, 0x600c, npc_get_kex_cfg, \ + msg_req, npc_get_kex_cfg_rsp) \ +M(NPC_INSTALL_FLOW, 0x600d, npc_install_flow, \ + npc_install_flow_req, npc_install_flow_rsp) \ +M(NPC_DELETE_FLOW, 0x600e, npc_delete_flow, \ + npc_delete_flow_req, npc_delete_flow_rsp) \ +M(NPC_MCAM_READ_ENTRY, 0x600f, npc_mcam_read_entry, \ + npc_mcam_read_entry_req, \ + npc_mcam_read_entry_rsp) \ +M(NPC_SET_PKIND, 0x6010, npc_set_pkind, \ + npc_set_pkind, msg_rsp) \ +M(NPC_MCAM_READ_BASE_RULE, 0x6011, npc_read_base_steer_rule, \ + msg_req, npc_mcam_read_base_rule_rsp) \ +M(NPC_MCAM_GET_STATS, 0x6012, npc_mcam_entry_stats, \ + npc_mcam_get_stats_req, \ + npc_mcam_get_stats_rsp) \ +M(NPC_GET_FIELD_HASH_INFO, 0x6013, npc_get_field_hash_info, \ + npc_get_field_hash_info_req, \ + npc_get_field_hash_info_rsp) \ +M(NPC_GET_FIELD_STATUS, 0x6014, npc_get_field_status, \ + npc_get_field_status_req, \ + npc_get_field_status_rsp) \ +/* NIX mbox IDs (range 0x8000 - 0xFFFF) */ \ +M(NIX_LF_ALLOC, 0x8000, nix_lf_alloc, \ + nix_lf_alloc_req, nix_lf_alloc_rsp) \ +M(NIX_LF_FREE, 0x8001, nix_lf_free, nix_lf_free_req, msg_rsp) \ +M(NIX_AQ_ENQ, 0x8002, nix_aq_enq, nix_aq_enq_req, nix_aq_enq_rsp) \ +M(NIX_HWCTX_DISABLE, 0x8003, nix_hwctx_disable, \ + hwctx_disable_req, msg_rsp) \ +M(NIX_TXSCH_ALLOC, 0x8004, nix_txsch_alloc, \ + nix_txsch_alloc_req, nix_txsch_alloc_rsp) \ +M(NIX_TXSCH_FREE, 0x8005, nix_txsch_free, nix_txsch_free_req, msg_rsp) \ +M(NIX_TXSCHQ_CFG, 0x8006, nix_txschq_cfg, nix_txschq_config, \ + nix_txschq_config) \ +M(NIX_STATS_RST, 0x8007, nix_stats_rst, msg_req, msg_rsp) \ +M(NIX_VTAG_CFG, 0x8008, nix_vtag_cfg, nix_vtag_config, \ + nix_vtag_config_rsp) \ +M(NIX_RSS_FLOWKEY_CFG, 0x8009, nix_rss_flowkey_cfg, \ + nix_rss_flowkey_cfg, \ + nix_rss_flowkey_cfg_rsp) \ +M(NIX_SET_MAC_ADDR, 0x800a, nix_set_mac_addr, nix_set_mac_addr, msg_rsp) \ +M(NIX_SET_RX_MODE, 0x800b, nix_set_rx_mode, nix_rx_mode, msg_rsp) \ +M(NIX_SET_HW_FRS, 0x800c, nix_set_hw_frs, nix_frs_cfg, msg_rsp) \ +M(NIX_LF_START_RX, 0x800d, nix_lf_start_rx, msg_req, msg_rsp) \ +M(NIX_LF_STOP_RX, 0x800e, nix_lf_stop_rx, msg_req, msg_rsp) \ +M(NIX_MARK_FORMAT_CFG, 0x800f, nix_mark_format_cfg, \ + nix_mark_format_cfg, \ + nix_mark_format_cfg_rsp) \ +M(NIX_SET_RX_CFG, 0x8010, nix_set_rx_cfg, nix_rx_cfg, msg_rsp) \ +M(NIX_LSO_FORMAT_CFG, 0x8011, nix_lso_format_cfg, \ + nix_lso_format_cfg, \ + nix_lso_format_cfg_rsp) \ +M(NIX_LF_PTP_TX_ENABLE, 0x8013, nix_lf_ptp_tx_enable, msg_req, msg_rsp) \ +M(NIX_LF_PTP_TX_DISABLE, 0x8014, nix_lf_ptp_tx_disable, msg_req, msg_rsp) \ +M(NIX_BP_ENABLE, 0x8016, nix_bp_enable, nix_bp_cfg_req, \ + nix_bp_cfg_rsp) \ +M(NIX_BP_DISABLE, 0x8017, nix_bp_disable, nix_bp_cfg_req, msg_rsp) \ +M(NIX_GET_MAC_ADDR, 0x8018, nix_get_mac_addr, msg_req, nix_get_mac_addr_rsp) \ +M(NIX_INLINE_IPSEC_CFG, 0x8019, nix_inline_ipsec_cfg, \ + nix_inline_ipsec_cfg, msg_rsp) \ +M(NIX_INLINE_IPSEC_LF_CFG, 0x801a, nix_inline_ipsec_lf_cfg, \ + nix_inline_ipsec_lf_cfg, msg_rsp) \ +M(NIX_CN10K_AQ_ENQ, 0x801b, nix_cn10k_aq_enq, nix_cn10k_aq_enq_req, \ + nix_cn10k_aq_enq_rsp) \ +M(NIX_GET_HW_INFO, 0x801c, nix_get_hw_info, msg_req, nix_hw_info) \ +M(NIX_BANDPROF_ALLOC, 0x801d, nix_bandprof_alloc, nix_bandprof_alloc_req, \ + nix_bandprof_alloc_rsp) \ +M(NIX_BANDPROF_FREE, 0x801e, nix_bandprof_free, nix_bandprof_free_req, \ + msg_rsp) \ +M(NIX_BANDPROF_GET_HWINFO, 0x801f, nix_bandprof_get_hwinfo, msg_req, \ + nix_bandprof_get_hwinfo_rsp) \ +/* MCS mbox IDs (range 0xA000 - 0xBFFF) */ \ +M(MCS_ALLOC_RESOURCES, 0xa000, mcs_alloc_resources, mcs_alloc_rsrc_req, \ + mcs_alloc_rsrc_rsp) \ +M(MCS_FREE_RESOURCES, 0xa001, mcs_free_resources, mcs_free_rsrc_req, msg_rsp) \ +M(MCS_FLOWID_ENTRY_WRITE, 0xa002, mcs_flowid_entry_write, mcs_flowid_entry_write_req, \ + msg_rsp) \ +M(MCS_SECY_PLCY_WRITE, 0xa003, mcs_secy_plcy_write, mcs_secy_plcy_write_req, \ + msg_rsp) \ +M(MCS_RX_SC_CAM_WRITE, 0xa004, mcs_rx_sc_cam_write, mcs_rx_sc_cam_write_req, \ + msg_rsp) \ +M(MCS_SA_PLCY_WRITE, 0xa005, mcs_sa_plcy_write, mcs_sa_plcy_write_req, \ + msg_rsp) \ +M(MCS_TX_SC_SA_MAP_WRITE, 0xa006, mcs_tx_sc_sa_map_write, mcs_tx_sc_sa_map, \ + msg_rsp) \ +M(MCS_RX_SC_SA_MAP_WRITE, 0xa007, mcs_rx_sc_sa_map_write, mcs_rx_sc_sa_map, \ + msg_rsp) \ +M(MCS_FLOWID_ENA_ENTRY, 0xa008, mcs_flowid_ena_entry, mcs_flowid_ena_dis_entry, \ + msg_rsp) \ +M(MCS_PN_TABLE_WRITE, 0xa009, mcs_pn_table_write, mcs_pn_table_write_req, \ + msg_rsp) \ +M(MCS_SET_ACTIVE_LMAC, 0xa00a, mcs_set_active_lmac, mcs_set_active_lmac, \ + msg_rsp) \ +M(MCS_GET_HW_INFO, 0xa00b, mcs_get_hw_info, msg_req, mcs_hw_info) \ +M(MCS_GET_FLOWID_STATS, 0xa00c, mcs_get_flowid_stats, mcs_stats_req, \ + mcs_flowid_stats) \ +M(MCS_GET_SECY_STATS, 0xa00d, mcs_get_secy_stats, mcs_stats_req, \ + mcs_secy_stats) \ +M(MCS_GET_SC_STATS, 0xa00e, mcs_get_sc_stats, mcs_stats_req, mcs_sc_stats) \ +M(MCS_GET_SA_STATS, 0xa00f, mcs_get_sa_stats, mcs_stats_req, mcs_sa_stats) \ +M(MCS_GET_PORT_STATS, 0xa010, mcs_get_port_stats, mcs_stats_req, \ + mcs_port_stats) \ +M(MCS_CLEAR_STATS, 0xa011, mcs_clear_stats, mcs_clear_stats, msg_rsp) \ +M(MCS_INTR_CFG, 0xa012, mcs_intr_cfg, mcs_intr_cfg, msg_rsp) \ +M(MCS_SET_LMAC_MODE, 0xa013, mcs_set_lmac_mode, mcs_set_lmac_mode, msg_rsp) \ +M(MCS_SET_PN_THRESHOLD, 0xa014, mcs_set_pn_threshold, mcs_set_pn_threshold, \ + msg_rsp) \ +M(MCS_ALLOC_CTRL_PKT_RULE, 0xa015, mcs_alloc_ctrl_pkt_rule, \ + mcs_alloc_ctrl_pkt_rule_req, \ + mcs_alloc_ctrl_pkt_rule_rsp) \ +M(MCS_FREE_CTRL_PKT_RULE, 0xa016, mcs_free_ctrl_pkt_rule, \ + mcs_free_ctrl_pkt_rule_req, msg_rsp) \ +M(MCS_CTRL_PKT_RULE_WRITE, 0xa017, mcs_ctrl_pkt_rule_write, \ + mcs_ctrl_pkt_rule_write_req, msg_rsp) \ +M(MCS_PORT_RESET, 0xa018, mcs_port_reset, mcs_port_reset_req, msg_rsp) \ +M(MCS_PORT_CFG_SET, 0xa019, mcs_port_cfg_set, mcs_port_cfg_set_req, msg_rsp)\ +M(MCS_PORT_CFG_GET, 0xa020, mcs_port_cfg_get, mcs_port_cfg_get_req, \ + mcs_port_cfg_get_rsp) \ +M(MCS_CUSTOM_TAG_CFG_GET, 0xa021, mcs_custom_tag_cfg_get, \ + mcs_custom_tag_cfg_get_req, \ + mcs_custom_tag_cfg_get_rsp) + +/* Messages initiated by AF (range 0xC00 - 0xEFF) */ +#define MBOX_UP_CGX_MESSAGES \ +M(CGX_LINK_EVENT, 0xC00, cgx_link_event, cgx_link_info_msg, msg_rsp) + +#define MBOX_UP_CPT_MESSAGES \ +M(CPT_INST_LMTST, 0xD00, cpt_inst_lmtst, cpt_inst_lmtst_req, msg_rsp) + +#define MBOX_UP_MCS_MESSAGES \ +M(MCS_INTR_NOTIFY, 0xE00, mcs_intr_notify, mcs_intr_info, msg_rsp) + +enum { +#define M(_name, _id, _1, _2, _3) MBOX_MSG_ ## _name = _id, +MBOX_MESSAGES +MBOX_UP_CGX_MESSAGES +MBOX_UP_CPT_MESSAGES +MBOX_UP_MCS_MESSAGES +#undef M +}; + +/* Mailbox message formats */ + +#define RVU_DEFAULT_PF_FUNC 0xFFFF + +/* Generic request msg used for those mbox messages which + * don't send any data in the request. + */ +struct msg_req { + struct mbox_msghdr hdr; +}; + +/* Generic response msg used an ack or response for those mbox + * messages which don't have a specific rsp msg format. + */ +struct msg_rsp { + struct mbox_msghdr hdr; +}; + +/* RVU mailbox error codes + * Range 256 - 300. + */ +enum rvu_af_status { + RVU_INVALID_VF_ID = -256, +}; + +struct ready_msg_rsp { + struct mbox_msghdr hdr; + u16 sclk_freq; /* SCLK frequency (in MHz) */ + u16 rclk_freq; /* RCLK frequency (in MHz) */ +}; + +/* Structure for requesting resource provisioning. + * 'modify' flag to be used when either requesting more + * or to detach partial of a certain resource type. + * Rest of the fields specify how many of what type to + * be attached. + * To request LFs from two blocks of same type this mailbox + * can be sent twice as below: + * struct rsrc_attach *attach; + * .. Allocate memory for message .. + * attach->cptlfs = 3; <3 LFs from CPT0> + * .. Send message .. + * .. Allocate memory for message .. + * attach->modify = 1; + * attach->cpt_blkaddr = BLKADDR_CPT1; + * attach->cptlfs = 2; <2 LFs from CPT1> + * .. Send message .. + */ +struct rsrc_attach { + struct mbox_msghdr hdr; + u8 modify:1; + u8 npalf:1; + u8 nixlf:1; + u16 sso; + u16 ssow; + u16 timlfs; + u16 cptlfs; + int cpt_blkaddr; /* BLKADDR_CPT0/BLKADDR_CPT1 or 0 for BLKADDR_CPT0 */ +}; + +/* Structure for relinquishing resources. + * 'partial' flag to be used when relinquishing all resources + * but only of a certain type. If not set, all resources of all + * types provisioned to the RVU function will be detached. + */ +struct rsrc_detach { + struct mbox_msghdr hdr; + u8 partial:1; + u8 npalf:1; + u8 nixlf:1; + u8 sso:1; + u8 ssow:1; + u8 timlfs:1; + u8 cptlfs:1; +}; + +/* Number of resources available to the caller. + * In reply to MBOX_MSG_FREE_RSRC_CNT. + */ +struct free_rsrcs_rsp { + struct mbox_msghdr hdr; + u16 schq[NIX_TXSCH_LVL_CNT]; + u16 sso; + u16 tim; + u16 ssow; + u16 cpt; + u8 npa; + u8 nix; + u16 schq_nix1[NIX_TXSCH_LVL_CNT]; + u8 nix1; + u8 cpt1; + u8 ree0; + u8 ree1; +}; + +#define MSIX_VECTOR_INVALID 0xFFFF +#define MAX_RVU_BLKLF_CNT 256 + +struct msix_offset_rsp { + struct mbox_msghdr hdr; + u16 npa_msixoff; + u16 nix_msixoff; + u16 sso; + u16 ssow; + u16 timlfs; + u16 cptlfs; + u16 sso_msixoff[MAX_RVU_BLKLF_CNT]; + u16 ssow_msixoff[MAX_RVU_BLKLF_CNT]; + u16 timlf_msixoff[MAX_RVU_BLKLF_CNT]; + u16 cptlf_msixoff[MAX_RVU_BLKLF_CNT]; + u16 cpt1_lfs; + u16 ree0_lfs; + u16 ree1_lfs; + u16 cpt1_lf_msixoff[MAX_RVU_BLKLF_CNT]; + u16 ree0_lf_msixoff[MAX_RVU_BLKLF_CNT]; + u16 ree1_lf_msixoff[MAX_RVU_BLKLF_CNT]; +}; + +struct get_hw_cap_rsp { + struct mbox_msghdr hdr; + u8 nix_fixed_txschq_mapping; /* Schq mapping fixed or flexible */ + u8 nix_shaping; /* Is shaping and coloring supported */ + u8 npc_hash_extract; /* Is hash extract supported */ +}; + +/* CGX mbox message formats */ + +struct cgx_stats_rsp { + struct mbox_msghdr hdr; +#define CGX_RX_STATS_COUNT 9 +#define CGX_TX_STATS_COUNT 18 + u64 rx_stats[CGX_RX_STATS_COUNT]; + u64 tx_stats[CGX_TX_STATS_COUNT]; +}; + +struct cgx_fec_stats_rsp { + struct mbox_msghdr hdr; + u64 fec_corr_blks; + u64 fec_uncorr_blks; +}; +/* Structure for requesting the operation for + * setting/getting mac address in the CGX interface + */ +struct cgx_mac_addr_set_or_get { + struct mbox_msghdr hdr; + u8 mac_addr[ETH_ALEN]; + u32 index; +}; + +/* Structure for requesting the operation to + * add DMAC filter entry into CGX interface + */ +struct cgx_mac_addr_add_req { + struct mbox_msghdr hdr; + u8 mac_addr[ETH_ALEN]; +}; + +/* Structure for response against the operation to + * add DMAC filter entry into CGX interface + */ +struct cgx_mac_addr_add_rsp { + struct mbox_msghdr hdr; + u32 index; +}; + +/* Structure for requesting the operation to + * delete DMAC filter entry from CGX interface + */ +struct cgx_mac_addr_del_req { + struct mbox_msghdr hdr; + u32 index; +}; + +/* Structure for response against the operation to + * get maximum supported DMAC filter entries + */ +struct cgx_max_dmac_entries_get_rsp { + struct mbox_msghdr hdr; + u32 max_dmac_filters; +}; + +struct cgx_link_user_info { + uint64_t link_up:1; + uint64_t full_duplex:1; + uint64_t lmac_type_id:4; + uint64_t speed:20; /* speed in Mbps */ + uint64_t an:1; /* AN supported or not */ + uint64_t fec:2; /* FEC type if enabled else 0 */ +#define LMACTYPE_STR_LEN 16 + char lmac_type[LMACTYPE_STR_LEN]; +}; + +struct cgx_link_info_msg { + struct mbox_msghdr hdr; + struct cgx_link_user_info link_info; +}; + +struct cgx_pause_frm_cfg { + struct mbox_msghdr hdr; + u8 set; + /* set = 1 if the request is to config pause frames */ + /* set = 0 if the request is to fetch pause frames config */ + u8 rx_pause; + u8 tx_pause; +}; + +enum fec_type { + OTX2_FEC_NONE, + OTX2_FEC_BASER, + OTX2_FEC_RS, + OTX2_FEC_STATS_CNT = 2, + OTX2_FEC_OFF, +}; + +struct fec_mode { + struct mbox_msghdr hdr; + int fec; +}; + +struct sfp_eeprom_s { +#define SFP_EEPROM_SIZE 256 + u16 sff_id; + u8 buf[SFP_EEPROM_SIZE]; + u64 reserved; +}; + +struct phy_s { + struct { + u64 can_change_mod_type:1; + u64 mod_type:1; + u64 has_fec_stats:1; + } misc; + struct fec_stats_s { + u32 rsfec_corr_cws; + u32 rsfec_uncorr_cws; + u32 brfec_corr_blks; + u32 brfec_uncorr_blks; + } fec_stats; +}; + +struct cgx_lmac_fwdata_s { + u16 rw_valid; + u64 supported_fec; + u64 supported_an; + u64 supported_link_modes; + /* only applicable if AN is supported */ + u64 advertised_fec; + u64 advertised_link_modes; + /* Only applicable if SFP/QSFP slot is present */ + struct sfp_eeprom_s sfp_eeprom; + struct phy_s phy; +#define LMAC_FWDATA_RESERVED_MEM 1021 + u64 reserved[LMAC_FWDATA_RESERVED_MEM]; +}; + +struct cgx_fw_data { + struct mbox_msghdr hdr; + struct cgx_lmac_fwdata_s fwdata; +}; + +struct cgx_set_link_mode_args { + u32 speed; + u8 duplex; + u8 an; + u8 ports; + u64 mode; +}; + +struct cgx_set_link_mode_req { +#define AUTONEG_UNKNOWN 0xff + struct mbox_msghdr hdr; + struct cgx_set_link_mode_args args; +}; + +struct cgx_set_link_mode_rsp { + struct mbox_msghdr hdr; + int status; +}; + +struct cgx_mac_addr_reset_req { + struct mbox_msghdr hdr; + u32 index; +}; + +struct cgx_mac_addr_update_req { + struct mbox_msghdr hdr; + u8 mac_addr[ETH_ALEN]; + u32 index; +}; + +struct cgx_mac_addr_update_rsp { + struct mbox_msghdr hdr; + u32 index; +}; + +#define RVU_LMAC_FEAT_FC BIT_ULL(0) /* pause frames */ +#define RVU_LMAC_FEAT_HIGIG2 BIT_ULL(1) + /* flow control from physical link higig2 messages */ +#define RVU_LMAC_FEAT_PTP BIT_ULL(2) /* precison time protocol */ +#define RVU_LMAC_FEAT_DMACF BIT_ULL(3) /* DMAC FILTER */ +#define RVU_MAC_VERSION BIT_ULL(4) +#define RVU_MAC_CGX BIT_ULL(5) +#define RVU_MAC_RPM BIT_ULL(6) + +struct cgx_features_info_msg { + struct mbox_msghdr hdr; + u64 lmac_features; +}; + +struct rpm_stats_rsp { + struct mbox_msghdr hdr; +#define RPM_RX_STATS_COUNT 43 +#define RPM_TX_STATS_COUNT 34 + u64 rx_stats[RPM_RX_STATS_COUNT]; + u64 tx_stats[RPM_TX_STATS_COUNT]; +}; + +struct cgx_pfc_cfg { + struct mbox_msghdr hdr; + u8 rx_pause; + u8 tx_pause; + u16 pfc_en; /* bitmap indicating pfc enabled traffic classes */ +}; + +struct cgx_pfc_rsp { + struct mbox_msghdr hdr; + u8 rx_pause; + u8 tx_pause; +}; + + /* NPA mbox message formats */ + +struct npc_set_pkind { + struct mbox_msghdr hdr; +#define OTX2_PRIV_FLAGS_DEFAULT BIT_ULL(0) +#define OTX2_PRIV_FLAGS_CUSTOM BIT_ULL(63) + u64 mode; +#define PKIND_TX BIT_ULL(0) +#define PKIND_RX BIT_ULL(1) + u8 dir; + u8 pkind; /* valid only in case custom flag */ + u8 var_len_off; /* Offset of custom header length field. + * Valid only for pkind NPC_RX_CUSTOM_PRE_L2_PKIND + */ + u8 var_len_off_mask; /* Mask for length with in offset */ + u8 shift_dir; /* shift direction to get length of the header at var_len_off */ +}; + +/* NPA mbox message formats */ + +/* NPA mailbox error codes + * Range 301 - 400. + */ +enum npa_af_status { + NPA_AF_ERR_PARAM = -301, + NPA_AF_ERR_AQ_FULL = -302, + NPA_AF_ERR_AQ_ENQUEUE = -303, + NPA_AF_ERR_AF_LF_INVALID = -304, + NPA_AF_ERR_AF_LF_ALLOC = -305, + NPA_AF_ERR_LF_RESET = -306, +}; + +/* For NPA LF context alloc and init */ +struct npa_lf_alloc_req { + struct mbox_msghdr hdr; + int node; + int aura_sz; /* No of auras */ + u32 nr_pools; /* No of pools */ + u64 way_mask; +}; + +struct npa_lf_alloc_rsp { + struct mbox_msghdr hdr; + u32 stack_pg_ptrs; /* No of ptrs per stack page */ + u32 stack_pg_bytes; /* Size of stack page */ + u16 qints; /* NPA_AF_CONST::QINTS */ + u8 cache_lines; /*BATCH ALLOC DMA */ +}; + +/* NPA AQ enqueue msg */ +struct npa_aq_enq_req { + struct mbox_msghdr hdr; + u32 aura_id; + u8 ctype; + u8 op; + union { + /* Valid when op == WRITE/INIT and ctype == AURA. + * LF fills the pool_id in aura.pool_addr. AF will translate + * the pool_id to pool context pointer. + */ + struct npa_aura_s aura; + /* Valid when op == WRITE/INIT and ctype == POOL */ + struct npa_pool_s pool; + }; + /* Mask data when op == WRITE (1=write, 0=don't write) */ + union { + /* Valid when op == WRITE and ctype == AURA */ + struct npa_aura_s aura_mask; + /* Valid when op == WRITE and ctype == POOL */ + struct npa_pool_s pool_mask; + }; +}; + +struct npa_aq_enq_rsp { + struct mbox_msghdr hdr; + union { + /* Valid when op == READ and ctype == AURA */ + struct npa_aura_s aura; + /* Valid when op == READ and ctype == POOL */ + struct npa_pool_s pool; + }; +}; + +/* Disable all contexts of type 'ctype' */ +struct hwctx_disable_req { + struct mbox_msghdr hdr; + u8 ctype; +}; + +/* NIX mbox message formats */ + +/* NIX mailbox error codes + * Range 401 - 500. + */ +enum nix_af_status { + NIX_AF_ERR_PARAM = -401, + NIX_AF_ERR_AQ_FULL = -402, + NIX_AF_ERR_AQ_ENQUEUE = -403, + NIX_AF_ERR_AF_LF_INVALID = -404, + NIX_AF_ERR_AF_LF_ALLOC = -405, + NIX_AF_ERR_TLX_ALLOC_FAIL = -406, + NIX_AF_ERR_TLX_INVALID = -407, + NIX_AF_ERR_RSS_SIZE_INVALID = -408, + NIX_AF_ERR_RSS_GRPS_INVALID = -409, + NIX_AF_ERR_FRS_INVALID = -410, + NIX_AF_ERR_RX_LINK_INVALID = -411, + NIX_AF_INVAL_TXSCHQ_CFG = -412, + NIX_AF_SMQ_FLUSH_FAILED = -413, + NIX_AF_ERR_LF_RESET = -414, + NIX_AF_ERR_RSS_NOSPC_FIELD = -415, + NIX_AF_ERR_RSS_NOSPC_ALGO = -416, + NIX_AF_ERR_MARK_CFG_FAIL = -417, + NIX_AF_ERR_LSO_CFG_FAIL = -418, + NIX_AF_INVAL_NPA_PF_FUNC = -419, + NIX_AF_INVAL_SSO_PF_FUNC = -420, + NIX_AF_ERR_TX_VTAG_NOSPC = -421, + NIX_AF_ERR_RX_VTAG_INUSE = -422, + NIX_AF_ERR_PTP_CONFIG_FAIL = -423, + NIX_AF_ERR_NPC_KEY_NOT_SUPP = -424, + NIX_AF_ERR_INVALID_NIXBLK = -425, + NIX_AF_ERR_INVALID_BANDPROF = -426, + NIX_AF_ERR_IPOLICER_NOTSUPP = -427, + NIX_AF_ERR_BANDPROF_INVAL_REQ = -428, + NIX_AF_ERR_CQ_CTX_WRITE_ERR = -429, + NIX_AF_ERR_AQ_CTX_RETRY_WRITE = -430, + NIX_AF_ERR_LINK_CREDITS = -431, +}; + +/* For NIX RX vtag action */ +enum nix_rx_vtag0_type { + NIX_AF_LFX_RX_VTAG_TYPE0, /* reserved for rx vlan offload */ + NIX_AF_LFX_RX_VTAG_TYPE1, + NIX_AF_LFX_RX_VTAG_TYPE2, + NIX_AF_LFX_RX_VTAG_TYPE3, + NIX_AF_LFX_RX_VTAG_TYPE4, + NIX_AF_LFX_RX_VTAG_TYPE5, + NIX_AF_LFX_RX_VTAG_TYPE6, + NIX_AF_LFX_RX_VTAG_TYPE7, +}; + +/* For NIX LF context alloc and init */ +struct nix_lf_alloc_req { + struct mbox_msghdr hdr; + int node; + u32 rq_cnt; /* No of receive queues */ + u32 sq_cnt; /* No of send queues */ + u32 cq_cnt; /* No of completion queues */ + u8 xqe_sz; + u16 rss_sz; + u8 rss_grps; + u16 npa_func; + u16 sso_func; + u64 rx_cfg; /* See NIX_AF_LF(0..127)_RX_CFG */ + u64 way_mask; +#define NIX_LF_RSS_TAG_LSB_AS_ADDER BIT_ULL(0) +#define NIX_LF_LBK_BLK_SEL BIT_ULL(1) + u64 flags; +}; + +struct nix_lf_alloc_rsp { + struct mbox_msghdr hdr; + u16 sqb_size; + u16 rx_chan_base; + u16 tx_chan_base; + u8 rx_chan_cnt; /* total number of RX channels */ + u8 tx_chan_cnt; /* total number of TX channels */ + u8 lso_tsov4_idx; + u8 lso_tsov6_idx; + u8 mac_addr[ETH_ALEN]; + u8 lf_rx_stats; /* NIX_AF_CONST1::LF_RX_STATS */ + u8 lf_tx_stats; /* NIX_AF_CONST1::LF_TX_STATS */ + u16 cints; /* NIX_AF_CONST2::CINTS */ + u16 qints; /* NIX_AF_CONST2::QINTS */ + u8 cgx_links; /* No. of CGX links present in HW */ + u8 lbk_links; /* No. of LBK links present in HW */ + u8 sdp_links; /* No. of SDP links present in HW */ + u8 tx_link; /* Transmit channel link number */ +}; + +struct nix_lf_free_req { + struct mbox_msghdr hdr; +#define NIX_LF_DISABLE_FLOWS BIT_ULL(0) +#define NIX_LF_DONT_FREE_TX_VTAG BIT_ULL(1) + u64 flags; +}; + +/* CN10K NIX AQ enqueue msg */ +struct nix_cn10k_aq_enq_req { + struct mbox_msghdr hdr; + u32 qidx; + u8 ctype; + u8 op; + union { + struct nix_cn10k_rq_ctx_s rq; + struct nix_cn10k_sq_ctx_s sq; + struct nix_cq_ctx_s cq; + struct nix_rsse_s rss; + struct nix_rx_mce_s mce; + struct nix_bandprof_s prof; + }; + union { + struct nix_cn10k_rq_ctx_s rq_mask; + struct nix_cn10k_sq_ctx_s sq_mask; + struct nix_cq_ctx_s cq_mask; + struct nix_rsse_s rss_mask; + struct nix_rx_mce_s mce_mask; + struct nix_bandprof_s prof_mask; + }; +}; + +struct nix_cn10k_aq_enq_rsp { + struct mbox_msghdr hdr; + union { + struct nix_cn10k_rq_ctx_s rq; + struct nix_cn10k_sq_ctx_s sq; + struct nix_cq_ctx_s cq; + struct nix_rsse_s rss; + struct nix_rx_mce_s mce; + struct nix_bandprof_s prof; + }; +}; + +/* NIX AQ enqueue msg */ +struct nix_aq_enq_req { + struct mbox_msghdr hdr; + u32 qidx; + u8 ctype; + u8 op; + union { + struct nix_rq_ctx_s rq; + struct nix_sq_ctx_s sq; + struct nix_cq_ctx_s cq; + struct nix_rsse_s rss; + struct nix_rx_mce_s mce; + u64 prof; + }; + union { + struct nix_rq_ctx_s rq_mask; + struct nix_sq_ctx_s sq_mask; + struct nix_cq_ctx_s cq_mask; + struct nix_rsse_s rss_mask; + struct nix_rx_mce_s mce_mask; + u64 prof_mask; + }; +}; + +struct nix_aq_enq_rsp { + struct mbox_msghdr hdr; + union { + struct nix_rq_ctx_s rq; + struct nix_sq_ctx_s sq; + struct nix_cq_ctx_s cq; + struct nix_rsse_s rss; + struct nix_rx_mce_s mce; + struct nix_bandprof_s prof; + }; +}; + +/* Tx scheduler/shaper mailbox messages */ + +#define MAX_TXSCHQ_PER_FUNC 128 + +struct nix_txsch_alloc_req { + struct mbox_msghdr hdr; + /* Scheduler queue count request at each level */ + u16 schq_contig[NIX_TXSCH_LVL_CNT]; /* No of contiguous queues */ + u16 schq[NIX_TXSCH_LVL_CNT]; /* No of non-contiguous queues */ +}; + +struct nix_txsch_alloc_rsp { + struct mbox_msghdr hdr; + /* Scheduler queue count allocated at each level */ + u16 schq_contig[NIX_TXSCH_LVL_CNT]; + u16 schq[NIX_TXSCH_LVL_CNT]; + /* Scheduler queue list allocated at each level */ + u16 schq_contig_list[NIX_TXSCH_LVL_CNT][MAX_TXSCHQ_PER_FUNC]; + u16 schq_list[NIX_TXSCH_LVL_CNT][MAX_TXSCHQ_PER_FUNC]; + u8 aggr_level; /* Traffic aggregation scheduler level */ + u8 aggr_lvl_rr_prio; /* Aggregation lvl's RR_PRIO config */ + u8 link_cfg_lvl; /* LINKX_CFG CSRs mapped to TL3 or TL2's index ? */ +}; + +struct nix_txsch_free_req { + struct mbox_msghdr hdr; +#define TXSCHQ_FREE_ALL BIT_ULL(0) + u16 flags; + /* Scheduler queue level to be freed */ + u16 schq_lvl; + /* List of scheduler queues to be freed */ + u16 schq; +}; + +struct nix_txschq_config { + struct mbox_msghdr hdr; + u8 lvl; /* SMQ/MDQ/TL4/TL3/TL2/TL1 */ + u8 read; +#define TXSCHQ_IDX_SHIFT 16 +#define TXSCHQ_IDX_MASK (BIT_ULL(10) - 1) +#define TXSCHQ_IDX(reg, shift) (((reg) >> (shift)) & TXSCHQ_IDX_MASK) + u8 num_regs; +#define MAX_REGS_PER_MBOX_MSG 20 + u64 reg[MAX_REGS_PER_MBOX_MSG]; + u64 regval[MAX_REGS_PER_MBOX_MSG]; + /* All 0's => overwrite with new value */ + u64 regval_mask[MAX_REGS_PER_MBOX_MSG]; +}; + +struct nix_vtag_config { + struct mbox_msghdr hdr; + /* '0' for 4 octet VTAG, '1' for 8 octet VTAG */ + u8 vtag_size; + /* cfg_type is '0' for tx vlan cfg + * cfg_type is '1' for rx vlan cfg + */ + u8 cfg_type; + union { + /* valid when cfg_type is '0' */ + struct { + u64 vtag0; + u64 vtag1; + + /* cfg_vtag0 & cfg_vtag1 fields are valid + * when free_vtag0 & free_vtag1 are '0's. + */ + /* cfg_vtag0 = 1 to configure vtag0 */ + u8 cfg_vtag0 :1; + /* cfg_vtag1 = 1 to configure vtag1 */ + u8 cfg_vtag1 :1; + + /* vtag0_idx & vtag1_idx are only valid when + * both cfg_vtag0 & cfg_vtag1 are '0's, + * these fields are used along with free_vtag0 + * & free_vtag1 to free the nix lf's tx_vlan + * configuration. + * + * Denotes the indices of tx_vtag def registers + * that needs to be cleared and freed. + */ + int vtag0_idx; + int vtag1_idx; + + /* free_vtag0 & free_vtag1 fields are valid + * when cfg_vtag0 & cfg_vtag1 are '0's. + */ + /* free_vtag0 = 1 clears vtag0 configuration + * vtag0_idx denotes the index to be cleared. + */ + u8 free_vtag0 :1; + /* free_vtag1 = 1 clears vtag1 configuration + * vtag1_idx denotes the index to be cleared. + */ + u8 free_vtag1 :1; + } tx; + + /* valid when cfg_type is '1' */ + struct { + /* rx vtag type index, valid values are in 0..7 range */ + u8 vtag_type; + /* rx vtag strip */ + u8 strip_vtag :1; + /* rx vtag capture */ + u8 capture_vtag :1; + } rx; + }; +}; + +struct nix_vtag_config_rsp { + struct mbox_msghdr hdr; + int vtag0_idx; + int vtag1_idx; + /* Indices of tx_vtag def registers used to configure + * tx vtag0 & vtag1 headers, these indices are valid + * when nix_vtag_config mbox requested for vtag0 and/ + * or vtag1 configuration. + */ +}; + +struct nix_rss_flowkey_cfg { + struct mbox_msghdr hdr; + int mcam_index; /* MCAM entry index to modify */ +#define NIX_FLOW_KEY_TYPE_PORT BIT(0) +#define NIX_FLOW_KEY_TYPE_IPV4 BIT(1) +#define NIX_FLOW_KEY_TYPE_IPV6 BIT(2) +#define NIX_FLOW_KEY_TYPE_TCP BIT(3) +#define NIX_FLOW_KEY_TYPE_UDP BIT(4) +#define NIX_FLOW_KEY_TYPE_SCTP BIT(5) +#define NIX_FLOW_KEY_TYPE_NVGRE BIT(6) +#define NIX_FLOW_KEY_TYPE_VXLAN BIT(7) +#define NIX_FLOW_KEY_TYPE_GENEVE BIT(8) +#define NIX_FLOW_KEY_TYPE_ETH_DMAC BIT(9) +#define NIX_FLOW_KEY_TYPE_IPV6_EXT BIT(10) +#define NIX_FLOW_KEY_TYPE_GTPU BIT(11) +#define NIX_FLOW_KEY_TYPE_INNR_IPV4 BIT(12) +#define NIX_FLOW_KEY_TYPE_INNR_IPV6 BIT(13) +#define NIX_FLOW_KEY_TYPE_INNR_TCP BIT(14) +#define NIX_FLOW_KEY_TYPE_INNR_UDP BIT(15) +#define NIX_FLOW_KEY_TYPE_INNR_SCTP BIT(16) +#define NIX_FLOW_KEY_TYPE_INNR_ETH_DMAC BIT(17) +#define NIX_FLOW_KEY_TYPE_VLAN BIT(20) +#define NIX_FLOW_KEY_TYPE_IPV4_PROTO BIT(21) +#define NIX_FLOW_KEY_TYPE_AH BIT(22) +#define NIX_FLOW_KEY_TYPE_ESP BIT(23) + u32 flowkey_cfg; /* Flowkey types selected */ + u8 group; /* RSS context or group */ +}; + +struct nix_rss_flowkey_cfg_rsp { + struct mbox_msghdr hdr; + u8 alg_idx; /* Selected algo index */ +}; + +struct nix_set_mac_addr { + struct mbox_msghdr hdr; + u8 mac_addr[ETH_ALEN]; /* MAC address to be set for this pcifunc */ +}; + +struct nix_get_mac_addr_rsp { + struct mbox_msghdr hdr; + u8 mac_addr[ETH_ALEN]; +}; + +struct nix_mark_format_cfg { + struct mbox_msghdr hdr; + u8 offset; + u8 y_mask; + u8 y_val; + u8 r_mask; + u8 r_val; +}; + +struct nix_mark_format_cfg_rsp { + struct mbox_msghdr hdr; + u8 mark_format_idx; +}; + +struct nix_rx_mode { + struct mbox_msghdr hdr; +#define NIX_RX_MODE_UCAST BIT(0) +#define NIX_RX_MODE_PROMISC BIT(1) +#define NIX_RX_MODE_ALLMULTI BIT(2) +#define NIX_RX_MODE_USE_MCE BIT(3) + u16 mode; +}; + +struct nix_rx_cfg { + struct mbox_msghdr hdr; +#define NIX_RX_OL3_VERIFY BIT(0) +#define NIX_RX_OL4_VERIFY BIT(1) + u8 len_verify; /* Outer L3/L4 len check */ +#define NIX_RX_CSUM_OL4_VERIFY BIT(0) + u8 csum_verify; /* Outer L4 checksum verification */ +}; + +struct nix_frs_cfg { + struct mbox_msghdr hdr; + u8 update_smq; /* Update SMQ's min/max lens */ + u8 update_minlen; /* Set minlen also */ + u8 sdp_link; /* Set SDP RX link */ + u16 maxlen; + u16 minlen; +}; + +struct nix_lso_format_cfg { + struct mbox_msghdr hdr; + u64 field_mask; +#define NIX_LSO_FIELD_MAX 8 + u64 fields[NIX_LSO_FIELD_MAX]; +}; + +struct nix_lso_format_cfg_rsp { + struct mbox_msghdr hdr; + u8 lso_format_idx; +}; + +struct nix_bp_cfg_req { + struct mbox_msghdr hdr; + u16 chan_base; /* Starting channel number */ + u8 chan_cnt; /* Number of channels */ + u8 bpid_per_chan; + /* bpid_per_chan = 0 assigns single bp id for range of channels */ + /* bpid_per_chan = 1 assigns separate bp id for each channel */ +}; + +/* PF can be mapped to either CGX or LBK interface, + * so maximum 64 channels are possible. + */ +#define NIX_MAX_BPID_CHAN 64 +struct nix_bp_cfg_rsp { + struct mbox_msghdr hdr; + u16 chan_bpid[NIX_MAX_BPID_CHAN]; /* Channel and bpid mapping */ + u8 chan_cnt; /* Number of channel for which bpids are assigned */ +}; + +/* Global NIX inline IPSec configuration */ +struct nix_inline_ipsec_cfg { + struct mbox_msghdr hdr; + u32 cpt_credit; + struct { + u8 egrp; + u8 opcode; + u16 param1; + u16 param2; + } gen_cfg; + struct { + u16 cpt_pf_func; + u8 cpt_slot; + } inst_qsel; + u8 enable; +}; + +/* Per NIX LF inline IPSec configuration */ +struct nix_inline_ipsec_lf_cfg { + struct mbox_msghdr hdr; + u64 sa_base_addr; + struct { + u32 tag_const; + u16 lenm1_max; + u8 sa_pow2_size; + u8 tt; + } ipsec_cfg0; + struct { + u32 sa_idx_max; + u8 sa_idx_w; + } ipsec_cfg1; + u8 enable; +}; + +struct nix_hw_info { + struct mbox_msghdr hdr; + u16 rsvs16; + u16 max_mtu; + u16 min_mtu; + u32 rpm_dwrr_mtu; + u32 sdp_dwrr_mtu; + u64 rsvd[16]; /* Add reserved fields for future expansion */ +}; + +struct nix_bandprof_alloc_req { + struct mbox_msghdr hdr; + /* Count of profiles needed per layer */ + u16 prof_count[BAND_PROF_NUM_LAYERS]; +}; + +struct nix_bandprof_alloc_rsp { + struct mbox_msghdr hdr; + u16 prof_count[BAND_PROF_NUM_LAYERS]; + + /* There is no need to allocate morethan 1 bandwidth profile + * per RQ of a PF_FUNC's NIXLF. So limit the maximum + * profiles to 64 per PF_FUNC. + */ +#define MAX_BANDPROF_PER_PFFUNC 64 + u16 prof_idx[BAND_PROF_NUM_LAYERS][MAX_BANDPROF_PER_PFFUNC]; +}; + +struct nix_bandprof_free_req { + struct mbox_msghdr hdr; + u8 free_all; + u16 prof_count[BAND_PROF_NUM_LAYERS]; + u16 prof_idx[BAND_PROF_NUM_LAYERS][MAX_BANDPROF_PER_PFFUNC]; +}; + +struct nix_bandprof_get_hwinfo_rsp { + struct mbox_msghdr hdr; + u16 prof_count[BAND_PROF_NUM_LAYERS]; + u32 policer_timeunit; +}; + +/* NPC mbox message structs */ + +#define NPC_MCAM_ENTRY_INVALID 0xFFFF +#define NPC_MCAM_INVALID_MAP 0xFFFF + +/* NPC mailbox error codes + * Range 701 - 800. + */ +enum npc_af_status { + NPC_MCAM_INVALID_REQ = -701, + NPC_MCAM_ALLOC_DENIED = -702, + NPC_MCAM_ALLOC_FAILED = -703, + NPC_MCAM_PERM_DENIED = -704, + NPC_FLOW_INTF_INVALID = -707, + NPC_FLOW_CHAN_INVALID = -708, + NPC_FLOW_NO_NIXLF = -709, + NPC_FLOW_NOT_SUPPORTED = -710, + NPC_FLOW_VF_PERM_DENIED = -711, + NPC_FLOW_VF_NOT_INIT = -712, + NPC_FLOW_VF_OVERLAP = -713, +}; + +struct npc_mcam_alloc_entry_req { + struct mbox_msghdr hdr; +#define NPC_MAX_NONCONTIG_ENTRIES 256 + u8 contig; /* Contiguous entries ? */ +#define NPC_MCAM_ANY_PRIO 0 +#define NPC_MCAM_LOWER_PRIO 1 +#define NPC_MCAM_HIGHER_PRIO 2 + u8 priority; /* Lower or higher w.r.t ref_entry */ + u16 ref_entry; + u16 count; /* Number of entries requested */ +}; + +struct npc_mcam_alloc_entry_rsp { + struct mbox_msghdr hdr; + u16 entry; /* Entry allocated or start index if contiguous. + * Invalid incase of non-contiguous. + */ + u16 count; /* Number of entries allocated */ + u16 free_count; /* Number of entries available */ + u16 entry_list[NPC_MAX_NONCONTIG_ENTRIES]; +}; + +struct npc_mcam_free_entry_req { + struct mbox_msghdr hdr; + u16 entry; /* Entry index to be freed */ + u8 all; /* If all entries allocated to this PFVF to be freed */ +}; + +struct mcam_entry { +#define NPC_MAX_KWS_IN_KEY 7 /* Number of keywords in max keywidth */ + u64 kw[NPC_MAX_KWS_IN_KEY]; + u64 kw_mask[NPC_MAX_KWS_IN_KEY]; + u64 action; + u64 vtag_action; +}; + +struct npc_mcam_write_entry_req { + struct mbox_msghdr hdr; + struct mcam_entry entry_data; + u16 entry; /* MCAM entry to write this match key */ + u16 cntr; /* Counter for this MCAM entry */ + u8 intf; /* Rx or Tx interface */ + u8 enable_entry;/* Enable this MCAM entry ? */ + u8 set_cntr; /* Set counter for this entry ? */ +}; + +/* Enable/Disable a given entry */ +struct npc_mcam_ena_dis_entry_req { + struct mbox_msghdr hdr; + u16 entry; +}; + +struct npc_mcam_shift_entry_req { + struct mbox_msghdr hdr; +#define NPC_MCAM_MAX_SHIFTS 64 + u16 curr_entry[NPC_MCAM_MAX_SHIFTS]; + u16 new_entry[NPC_MCAM_MAX_SHIFTS]; + u16 shift_count; /* Number of entries to shift */ +}; + +struct npc_mcam_shift_entry_rsp { + struct mbox_msghdr hdr; + u16 failed_entry_idx; /* Index in 'curr_entry', not entry itself */ +}; + +struct npc_mcam_alloc_counter_req { + struct mbox_msghdr hdr; + u8 contig; /* Contiguous counters ? */ +#define NPC_MAX_NONCONTIG_COUNTERS 64 + u16 count; /* Number of counters requested */ +}; + +struct npc_mcam_alloc_counter_rsp { + struct mbox_msghdr hdr; + u16 cntr; /* Counter allocated or start index if contiguous. + * Invalid incase of non-contiguous. + */ + u16 count; /* Number of counters allocated */ + u16 cntr_list[NPC_MAX_NONCONTIG_COUNTERS]; +}; + +struct npc_mcam_oper_counter_req { + struct mbox_msghdr hdr; + u16 cntr; /* Free a counter or clear/fetch it's stats */ +}; + +struct npc_mcam_oper_counter_rsp { + struct mbox_msghdr hdr; + u64 stat; /* valid only while fetching counter's stats */ +}; + +struct npc_mcam_unmap_counter_req { + struct mbox_msghdr hdr; + u16 cntr; + u16 entry; /* Entry and counter to be unmapped */ + u8 all; /* Unmap all entries using this counter ? */ +}; + +struct npc_mcam_alloc_and_write_entry_req { + struct mbox_msghdr hdr; + struct mcam_entry entry_data; + u16 ref_entry; + u8 priority; /* Lower or higher w.r.t ref_entry */ + u8 intf; /* Rx or Tx interface */ + u8 enable_entry;/* Enable this MCAM entry ? */ + u8 alloc_cntr; /* Allocate counter and map ? */ +}; + +struct npc_mcam_alloc_and_write_entry_rsp { + struct mbox_msghdr hdr; + u16 entry; + u16 cntr; +}; + +struct npc_get_kex_cfg_rsp { + struct mbox_msghdr hdr; + u64 rx_keyx_cfg; /* NPC_AF_INTF(0)_KEX_CFG */ + u64 tx_keyx_cfg; /* NPC_AF_INTF(1)_KEX_CFG */ +#define NPC_MAX_INTF 2 +#define NPC_MAX_LID 8 +#define NPC_MAX_LT 16 +#define NPC_MAX_LD 2 +#define NPC_MAX_LFL 16 + /* NPC_AF_KEX_LDATA(0..1)_FLAGS_CFG */ + u64 kex_ld_flags[NPC_MAX_LD]; + /* NPC_AF_INTF(0..1)_LID(0..7)_LT(0..15)_LD(0..1)_CFG */ + u64 intf_lid_lt_ld[NPC_MAX_INTF][NPC_MAX_LID][NPC_MAX_LT][NPC_MAX_LD]; + /* NPC_AF_INTF(0..1)_LDATA(0..1)_FLAGS(0..15)_CFG */ + u64 intf_ld_flags[NPC_MAX_INTF][NPC_MAX_LD][NPC_MAX_LFL]; +#define MKEX_NAME_LEN 128 + u8 mkex_pfl_name[MKEX_NAME_LEN]; +}; + +struct flow_msg { + unsigned char dmac[6]; + unsigned char smac[6]; + __be16 etype; + __be16 vlan_etype; + __be16 vlan_tci; + union { + __be32 ip4src; + __be32 ip6src[4]; + }; + union { + __be32 ip4dst; + __be32 ip6dst[4]; + }; + u8 tos; + u8 ip_ver; + u8 ip_proto; + u8 tc; + __be16 sport; + __be16 dport; +}; + +struct npc_install_flow_req { + struct mbox_msghdr hdr; + struct flow_msg packet; + struct flow_msg mask; + u64 features; + u16 entry; + u16 channel; + u16 chan_mask; + u8 intf; + u8 set_cntr; /* If counter is available set counter for this entry ? */ + u8 default_rule; + u8 append; /* overwrite(0) or append(1) flow to default rule? */ + u16 vf; + /* action */ + u32 index; + u16 match_id; + u8 flow_key_alg; + u8 op; + /* vtag rx action */ + u8 vtag0_type; + u8 vtag0_valid; + u8 vtag1_type; + u8 vtag1_valid; + /* vtag tx action */ + u16 vtag0_def; + u8 vtag0_op; + u16 vtag1_def; + u8 vtag1_op; + /* old counter value */ + u16 cntr_val; +}; + +struct npc_install_flow_rsp { + struct mbox_msghdr hdr; + int counter; /* negative if no counter else counter number */ +}; + +struct npc_delete_flow_req { + struct mbox_msghdr hdr; + u16 entry; + u16 start;/*Disable range of entries */ + u16 end; + u8 all; /* PF + VFs */ +}; + +struct npc_delete_flow_rsp { + struct mbox_msghdr hdr; + u16 cntr_val; +}; + +struct npc_mcam_read_entry_req { + struct mbox_msghdr hdr; + u16 entry; /* MCAM entry to read */ +}; + +struct npc_mcam_read_entry_rsp { + struct mbox_msghdr hdr; + struct mcam_entry entry_data; + u8 intf; + u8 enable; +}; + +struct npc_mcam_read_base_rule_rsp { + struct mbox_msghdr hdr; + struct mcam_entry entry; +}; + +struct npc_mcam_get_stats_req { + struct mbox_msghdr hdr; + u16 entry; /* mcam entry */ +}; + +struct npc_mcam_get_stats_rsp { + struct mbox_msghdr hdr; + u64 stat; /* counter stats */ + u8 stat_ena; /* enabled */ +}; + +struct npc_get_field_hash_info_req { + struct mbox_msghdr hdr; + u8 intf; +}; + +struct npc_get_field_hash_info_rsp { + struct mbox_msghdr hdr; + u64 secret_key[3]; +#define NPC_MAX_HASH 2 +#define NPC_MAX_HASH_MASK 2 + /* NPC_AF_INTF(0..1)_HASH(0..1)_MASK(0..1) */ + u64 hash_mask[NPC_MAX_INTF][NPC_MAX_HASH][NPC_MAX_HASH_MASK]; + /* NPC_AF_INTF(0..1)_HASH(0..1)_RESULT_CTRL */ + u64 hash_ctrl[NPC_MAX_INTF][NPC_MAX_HASH]; +}; + +enum ptp_op { + PTP_OP_ADJFINE = 0, + PTP_OP_GET_CLOCK = 1, + PTP_OP_GET_TSTMP = 2, + PTP_OP_SET_THRESH = 3, + PTP_OP_EXTTS_ON = 4, +}; + +struct ptp_req { + struct mbox_msghdr hdr; + u8 op; + s64 scaled_ppm; + u64 thresh; + int extts_on; +}; + +struct ptp_rsp { + struct mbox_msghdr hdr; + u64 clk; +}; + +struct npc_get_field_status_req { + struct mbox_msghdr hdr; + u8 intf; + u8 field; +}; + +struct npc_get_field_status_rsp { + struct mbox_msghdr hdr; + u8 enable; +}; + +struct set_vf_perm { + struct mbox_msghdr hdr; + u16 vf; +#define RESET_VF_PERM BIT_ULL(0) +#define VF_TRUSTED BIT_ULL(1) + u64 flags; +}; + +struct lmtst_tbl_setup_req { + struct mbox_msghdr hdr; + u64 dis_sched_early_comp :1; + u64 sch_ena :1; + u64 dis_line_pref :1; + u64 ssow_pf_func :13; + u16 base_pcifunc; + u8 use_local_lmt_region; + u64 lmt_iova; + u64 rsvd[4]; +}; + +/* CPT mailbox error codes + * Range 901 - 1000. + */ +enum cpt_af_status { + CPT_AF_ERR_PARAM = -901, + CPT_AF_ERR_GRP_INVALID = -902, + CPT_AF_ERR_LF_INVALID = -903, + CPT_AF_ERR_ACCESS_DENIED = -904, + CPT_AF_ERR_SSO_PF_FUNC_INVALID = -905, + CPT_AF_ERR_NIX_PF_FUNC_INVALID = -906, + CPT_AF_ERR_INLINE_IPSEC_INB_ENA = -907, + CPT_AF_ERR_INLINE_IPSEC_OUT_ENA = -908 +}; + +/* CPT mbox message formats */ +struct cpt_rd_wr_reg_msg { + struct mbox_msghdr hdr; + u64 reg_offset; + u64 *ret_val; + u64 val; + u8 is_write; + int blkaddr; +}; + +struct cpt_lf_alloc_req_msg { + struct mbox_msghdr hdr; + u16 nix_pf_func; + u16 sso_pf_func; + u16 eng_grpmsk; + int blkaddr; +}; + +#define CPT_INLINE_INBOUND 0 +#define CPT_INLINE_OUTBOUND 1 + +/* Mailbox message request format for CPT IPsec + * inline inbound and outbound configuration. + */ +struct cpt_inline_ipsec_cfg_msg { + struct mbox_msghdr hdr; + u8 enable; + u8 slot; + u8 dir; + u8 sso_pf_func_ovrd; + u16 sso_pf_func; /* inbound path SSO_PF_FUNC */ + u16 nix_pf_func; /* outbound path NIX_PF_FUNC */ +}; + +/* Mailbox message request and response format for CPT stats. */ +struct cpt_sts_req { + struct mbox_msghdr hdr; + u8 blkaddr; +}; + +struct cpt_sts_rsp { + struct mbox_msghdr hdr; + u64 inst_req_pc; + u64 inst_lat_pc; + u64 rd_req_pc; + u64 rd_lat_pc; + u64 rd_uc_pc; + u64 active_cycles_pc; + u64 ctx_mis_pc; + u64 ctx_hit_pc; + u64 ctx_aop_pc; + u64 ctx_aop_lat_pc; + u64 ctx_ifetch_pc; + u64 ctx_ifetch_lat_pc; + u64 ctx_ffetch_pc; + u64 ctx_ffetch_lat_pc; + u64 ctx_wback_pc; + u64 ctx_wback_lat_pc; + u64 ctx_psh_pc; + u64 ctx_psh_lat_pc; + u64 ctx_err; + u64 ctx_enc_id; + u64 ctx_flush_timer; + u64 rxc_time; + u64 rxc_time_cfg; + u64 rxc_active_sts; + u64 rxc_zombie_sts; + u64 busy_sts_ae; + u64 free_sts_ae; + u64 busy_sts_se; + u64 free_sts_se; + u64 busy_sts_ie; + u64 free_sts_ie; + u64 exe_err_info; + u64 cptclk_cnt; + u64 diag; + u64 rxc_dfrg; + u64 x2p_link_cfg0; + u64 x2p_link_cfg1; +}; + +/* Mailbox message request format to configure reassembly timeout. */ +struct cpt_rxc_time_cfg_req { + struct mbox_msghdr hdr; + int blkaddr; + u32 step; + u16 zombie_thres; + u16 zombie_limit; + u16 active_thres; + u16 active_limit; +}; + +/* Mailbox message request format to request for CPT_INST_S lmtst. */ +struct cpt_inst_lmtst_req { + struct mbox_msghdr hdr; + u64 inst[8]; + u64 rsvd; +}; + +struct sdp_node_info { + /* Node to which this PF belons to */ + u8 node_id; + u8 max_vfs; + u8 num_pf_rings; + u8 pf_srn; +#define SDP_MAX_VFS 128 + u8 vf_rings[SDP_MAX_VFS]; +}; + +struct sdp_chan_info_msg { + struct mbox_msghdr hdr; + struct sdp_node_info info; +}; + +struct sdp_get_chan_info_msg { + struct mbox_msghdr hdr; + u16 chan_base; + u16 num_chan; +}; + +/* CGX mailbox error codes + * Range 1101 - 1200. + */ +enum cgx_af_status { + LMAC_AF_ERR_INVALID_PARAM = -1101, + LMAC_AF_ERR_PF_NOT_MAPPED = -1102, + LMAC_AF_ERR_PERM_DENIED = -1103, + LMAC_AF_ERR_PFC_ENADIS_PERM_DENIED = -1104, + LMAC_AF_ERR_8023PAUSE_ENADIS_PERM_DENIED = -1105, + LMAC_AF_ERR_CMD_TIMEOUT = -1106, + LMAC_AF_ERR_FIRMWARE_DATA_NOT_MAPPED = -1107, + LMAC_AF_ERR_EXACT_MATCH_TBL_ADD_FAILED = -1108, + LMAC_AF_ERR_EXACT_MATCH_TBL_DEL_FAILED = -1109, + LMAC_AF_ERR_EXACT_MATCH_TBL_LOOK_UP_FAILED = -1110, +}; + +enum mcs_direction { + MCS_RX, + MCS_TX, +}; + +enum mcs_rsrc_type { + MCS_RSRC_TYPE_FLOWID, + MCS_RSRC_TYPE_SECY, + MCS_RSRC_TYPE_SC, + MCS_RSRC_TYPE_SA, +}; + +struct mcs_alloc_rsrc_req { + struct mbox_msghdr hdr; + u8 rsrc_type; + u8 rsrc_cnt; /* Resources count */ + u8 mcs_id; /* MCS block ID */ + u8 dir; /* Macsec ingress or egress side */ + u8 all; /* Allocate all resource type one each */ + u64 rsvd; +}; + +struct mcs_alloc_rsrc_rsp { + struct mbox_msghdr hdr; + u8 flow_ids[128]; /* Index of reserved entries */ + u8 secy_ids[128]; + u8 sc_ids[128]; + u8 sa_ids[256]; + u8 rsrc_type; + u8 rsrc_cnt; /* No of entries reserved */ + u8 mcs_id; + u8 dir; + u8 all; + u8 rsvd[256]; /* reserved fields for future expansion */ +}; + +struct mcs_free_rsrc_req { + struct mbox_msghdr hdr; + u8 rsrc_id; /* Index of the entry to be freed */ + u8 rsrc_type; + u8 mcs_id; + u8 dir; + u8 all; /* Free all the cam resources */ + u64 rsvd; +}; + +struct mcs_flowid_entry_write_req { + struct mbox_msghdr hdr; + u64 data[4]; + u64 mask[4]; + u64 sci; /* CNF10K-B for tx_secy_mem_map */ + u8 flow_id; + u8 secy_id; /* secyid for which flowid is mapped */ + u8 sc_id; /* Valid if dir = MCS_TX, SC_CAM id mapped to flowid */ + u8 ena; /* Enable tcam entry */ + u8 ctrl_pkt; + u8 mcs_id; + u8 dir; + u64 rsvd; +}; + +struct mcs_secy_plcy_write_req { + struct mbox_msghdr hdr; + u64 plcy; + u8 secy_id; + u8 mcs_id; + u8 dir; + u64 rsvd; +}; + +/* RX SC_CAM mapping */ +struct mcs_rx_sc_cam_write_req { + struct mbox_msghdr hdr; + u64 sci; /* SCI */ + u64 secy_id; /* secy index mapped to SC */ + u8 sc_id; /* SC CAM entry index */ + u8 mcs_id; + u64 rsvd; +}; + +struct mcs_sa_plcy_write_req { + struct mbox_msghdr hdr; + u64 plcy[2][9]; /* Support 2 SA policy */ + u8 sa_index[2]; + u8 sa_cnt; + u8 mcs_id; + u8 dir; + u64 rsvd; +}; + +struct mcs_tx_sc_sa_map { + struct mbox_msghdr hdr; + u8 sa_index0; + u8 sa_index1; + u8 rekey_ena; + u8 sa_index0_vld; + u8 sa_index1_vld; + u8 tx_sa_active; + u64 sectag_sci; + u8 sc_id; /* used as index for SA_MEM_MAP */ + u8 mcs_id; + u64 rsvd; +}; + +struct mcs_rx_sc_sa_map { + struct mbox_msghdr hdr; + u8 sa_index; + u8 sa_in_use; + u8 sc_id; + u8 an; /* value range 0-3, sc_id + an used as index SA_MEM_MAP */ + u8 mcs_id; + u64 rsvd; +}; + +struct mcs_flowid_ena_dis_entry { + struct mbox_msghdr hdr; + u8 flow_id; + u8 ena; + u8 mcs_id; + u8 dir; + u64 rsvd; +}; + +struct mcs_pn_table_write_req { + struct mbox_msghdr hdr; + u64 next_pn; + u8 pn_id; + u8 mcs_id; + u8 dir; + u64 rsvd; +}; + +struct mcs_hw_info { + struct mbox_msghdr hdr; + u8 num_mcs_blks; /* Number of MCS blocks */ + u8 tcam_entries; /* RX/TX Tcam entries per mcs block */ + u8 secy_entries; /* RX/TX SECY entries per mcs block */ + u8 sc_entries; /* RX/TX SC CAM entries per mcs block */ + u16 sa_entries; /* PN table entries = SA entries */ + u64 rsvd[16]; +}; + +struct mcs_set_active_lmac { + struct mbox_msghdr hdr; + u32 lmac_bmap; /* bitmap of active lmac per mcs block */ + u8 mcs_id; + u16 chan_base; /* MCS channel base */ + u64 rsvd; +}; + +struct mcs_set_lmac_mode { + struct mbox_msghdr hdr; + u8 mode; /* 1:Bypass 0:Operational */ + u8 lmac_id; + u8 mcs_id; + u64 rsvd; +}; + +struct mcs_port_reset_req { + struct mbox_msghdr hdr; + u8 reset; + u8 mcs_id; + u8 port_id; + u64 rsvd; +}; + +struct mcs_port_cfg_set_req { + struct mbox_msghdr hdr; + u8 cstm_tag_rel_mode_sel; + u8 custom_hdr_enb; + u8 fifo_skid; + u8 port_mode; + u8 port_id; + u8 mcs_id; + u64 rsvd; +}; + +struct mcs_port_cfg_get_req { + struct mbox_msghdr hdr; + u8 port_id; + u8 mcs_id; + u64 rsvd; +}; + +struct mcs_port_cfg_get_rsp { + struct mbox_msghdr hdr; + u8 cstm_tag_rel_mode_sel; + u8 custom_hdr_enb; + u8 fifo_skid; + u8 port_mode; + u8 port_id; + u8 mcs_id; + u64 rsvd; +}; + +struct mcs_custom_tag_cfg_get_req { + struct mbox_msghdr hdr; + u8 mcs_id; + u8 dir; + u64 rsvd; +}; + +struct mcs_custom_tag_cfg_get_rsp { + struct mbox_msghdr hdr; + u16 cstm_etype[8]; + u8 cstm_indx[8]; + u8 cstm_etype_en; + u8 mcs_id; + u8 dir; + u64 rsvd; +}; + +/* MCS mailbox error codes + * Range 1201 - 1300. + */ +enum mcs_af_status { + MCS_AF_ERR_INVALID_MCSID = -1201, + MCS_AF_ERR_NOT_MAPPED = -1202, +}; + +struct mcs_set_pn_threshold { + struct mbox_msghdr hdr; + u64 threshold; + u8 xpn; /* '1' for setting xpn threshold */ + u8 mcs_id; + u8 dir; + u64 rsvd; +}; + +enum mcs_ctrl_pkt_rulew_type { + MCS_CTRL_PKT_RULE_TYPE_ETH, + MCS_CTRL_PKT_RULE_TYPE_DA, + MCS_CTRL_PKT_RULE_TYPE_RANGE, + MCS_CTRL_PKT_RULE_TYPE_COMBO, + MCS_CTRL_PKT_RULE_TYPE_MAC, +}; + +struct mcs_alloc_ctrl_pkt_rule_req { + struct mbox_msghdr hdr; + u8 rule_type; + u8 mcs_id; /* MCS block ID */ + u8 dir; /* Macsec ingress or egress side */ + u64 rsvd; +}; + +struct mcs_alloc_ctrl_pkt_rule_rsp { + struct mbox_msghdr hdr; + u8 rule_idx; + u8 rule_type; + u8 mcs_id; + u8 dir; + u64 rsvd; +}; + +struct mcs_free_ctrl_pkt_rule_req { + struct mbox_msghdr hdr; + u8 rule_idx; + u8 rule_type; + u8 mcs_id; + u8 dir; + u8 all; + u64 rsvd; +}; + +struct mcs_ctrl_pkt_rule_write_req { + struct mbox_msghdr hdr; + u64 data0; + u64 data1; + u64 data2; + u8 rule_idx; + u8 rule_type; + u8 mcs_id; + u8 dir; + u64 rsvd; +}; + +struct mcs_stats_req { + struct mbox_msghdr hdr; + u8 id; + u8 mcs_id; + u8 dir; + u64 rsvd; +}; + +struct mcs_flowid_stats { + struct mbox_msghdr hdr; + u64 tcam_hit_cnt; + u64 rsvd; +}; + +struct mcs_secy_stats { + struct mbox_msghdr hdr; + u64 ctl_pkt_bcast_cnt; + u64 ctl_pkt_mcast_cnt; + u64 ctl_pkt_ucast_cnt; + u64 ctl_octet_cnt; + u64 unctl_pkt_bcast_cnt; + u64 unctl_pkt_mcast_cnt; + u64 unctl_pkt_ucast_cnt; + u64 unctl_octet_cnt; + /* Valid only for RX */ + u64 octet_decrypted_cnt; + u64 octet_validated_cnt; + u64 pkt_port_disabled_cnt; + u64 pkt_badtag_cnt; + u64 pkt_nosa_cnt; + u64 pkt_nosaerror_cnt; + u64 pkt_tagged_ctl_cnt; + u64 pkt_untaged_cnt; + u64 pkt_ctl_cnt; /* CN10K-B */ + u64 pkt_notag_cnt; /* CNF10K-B */ + /* Valid only for TX */ + u64 octet_encrypted_cnt; + u64 octet_protected_cnt; + u64 pkt_noactivesa_cnt; + u64 pkt_toolong_cnt; + u64 pkt_untagged_cnt; + u64 rsvd[4]; +}; + +struct mcs_port_stats { + struct mbox_msghdr hdr; + u64 tcam_miss_cnt; + u64 parser_err_cnt; + u64 preempt_err_cnt; /* CNF10K-B */ + u64 sectag_insert_err_cnt; + u64 rsvd[4]; +}; + +/* Only for CN10K-B */ +struct mcs_sa_stats { + struct mbox_msghdr hdr; + /* RX */ + u64 pkt_invalid_cnt; + u64 pkt_nosaerror_cnt; + u64 pkt_notvalid_cnt; + u64 pkt_ok_cnt; + u64 pkt_nosa_cnt; + /* TX */ + u64 pkt_encrypt_cnt; + u64 pkt_protected_cnt; + u64 rsvd[4]; +}; + +struct mcs_sc_stats { + struct mbox_msghdr hdr; + /* RX */ + u64 hit_cnt; + u64 pkt_invalid_cnt; + u64 pkt_late_cnt; + u64 pkt_notvalid_cnt; + u64 pkt_unchecked_cnt; + u64 pkt_delay_cnt; /* CNF10K-B */ + u64 pkt_ok_cnt; /* CNF10K-B */ + u64 octet_decrypt_cnt; /* CN10K-B */ + u64 octet_validate_cnt; /* CN10K-B */ + /* TX */ + u64 pkt_encrypt_cnt; + u64 pkt_protected_cnt; + u64 octet_encrypt_cnt; /* CN10K-B */ + u64 octet_protected_cnt; /* CN10K-B */ + u64 rsvd[4]; +}; + +struct mcs_clear_stats { + struct mbox_msghdr hdr; +#define MCS_FLOWID_STATS 0 +#define MCS_SECY_STATS 1 +#define MCS_SC_STATS 2 +#define MCS_SA_STATS 3 +#define MCS_PORT_STATS 4 + u8 type; /* FLOWID, SECY, SC, SA, PORT */ + u8 id; /* type = PORT, If id = FF(invalid) port no is derived from pcifunc */ + u8 mcs_id; + u8 dir; + u8 all; /* All resources stats mapped to PF are cleared */ +}; + +struct mcs_intr_cfg { + struct mbox_msghdr hdr; +#define MCS_CPM_RX_SECTAG_V_EQ1_INT BIT_ULL(0) +#define MCS_CPM_RX_SECTAG_E_EQ0_C_EQ1_INT BIT_ULL(1) +#define MCS_CPM_RX_SECTAG_SL_GTE48_INT BIT_ULL(2) +#define MCS_CPM_RX_SECTAG_ES_EQ1_SC_EQ1_INT BIT_ULL(3) +#define MCS_CPM_RX_SECTAG_SC_EQ1_SCB_EQ1_INT BIT_ULL(4) +#define MCS_CPM_RX_PACKET_XPN_EQ0_INT BIT_ULL(5) +#define MCS_CPM_RX_PN_THRESH_REACHED_INT BIT_ULL(6) +#define MCS_CPM_TX_PACKET_XPN_EQ0_INT BIT_ULL(7) +#define MCS_CPM_TX_PN_THRESH_REACHED_INT BIT_ULL(8) +#define MCS_CPM_TX_SA_NOT_VALID_INT BIT_ULL(9) +#define MCS_BBE_RX_DFIFO_OVERFLOW_INT BIT_ULL(10) +#define MCS_BBE_RX_PLFIFO_OVERFLOW_INT BIT_ULL(11) +#define MCS_BBE_TX_DFIFO_OVERFLOW_INT BIT_ULL(12) +#define MCS_BBE_TX_PLFIFO_OVERFLOW_INT BIT_ULL(13) +#define MCS_PAB_RX_CHAN_OVERFLOW_INT BIT_ULL(14) +#define MCS_PAB_TX_CHAN_OVERFLOW_INT BIT_ULL(15) + u64 intr_mask; /* Interrupt enable mask */ + u8 mcs_id; + u8 lmac_id; + u64 rsvd; +}; + +struct mcs_intr_info { + struct mbox_msghdr hdr; + u64 intr_mask; + int sa_id; + u8 mcs_id; + u8 lmac_id; + u64 rsvd; +}; + +#endif /* MBOX_H */ diff --git a/drivers/net/ethernet/marvell/octeontx2/af/mcs.c b/drivers/net/ethernet/marvell/octeontx2/af/mcs.c new file mode 100644 index 000000000..c1775bd01 --- /dev/null +++ b/drivers/net/ethernet/marvell/octeontx2/af/mcs.c @@ -0,0 +1,1617 @@ +// SPDX-License-Identifier: GPL-2.0 +/* Marvell MCS driver + * + * Copyright (C) 2022 Marvell. + */ + +#include <linux/bitfield.h> +#include <linux/delay.h> +#include <linux/device.h> +#include <linux/module.h> +#include <linux/pci.h> + +#include "mcs.h" +#include "mcs_reg.h" + +#define DRV_NAME "Marvell MCS Driver" + +#define PCI_CFG_REG_BAR_NUM 0 + +static const struct pci_device_id mcs_id_table[] = { + { PCI_DEVICE(PCI_VENDOR_ID_CAVIUM, PCI_DEVID_CN10K_MCS) }, + { 0, } /* end of table */ +}; + +static LIST_HEAD(mcs_list); + +void mcs_get_tx_secy_stats(struct mcs *mcs, struct mcs_secy_stats *stats, int id) +{ + u64 reg; + + reg = MCSX_CSE_TX_MEM_SLAVE_IFOUTCTLBCPKTSX(id); + stats->ctl_pkt_bcast_cnt = mcs_reg_read(mcs, reg); + + reg = MCSX_CSE_TX_MEM_SLAVE_IFOUTCTLMCPKTSX(id); + stats->ctl_pkt_mcast_cnt = mcs_reg_read(mcs, reg); + + reg = MCSX_CSE_TX_MEM_SLAVE_IFOUTCTLOCTETSX(id); + stats->ctl_octet_cnt = mcs_reg_read(mcs, reg); + + reg = MCSX_CSE_TX_MEM_SLAVE_IFOUTCTLUCPKTSX(id); + stats->ctl_pkt_ucast_cnt = mcs_reg_read(mcs, reg); + + reg = MCSX_CSE_TX_MEM_SLAVE_IFOUTUNCTLBCPKTSX(id); + stats->unctl_pkt_bcast_cnt = mcs_reg_read(mcs, reg); + + reg = MCSX_CSE_TX_MEM_SLAVE_IFOUTUNCTLMCPKTSX(id); + stats->unctl_pkt_mcast_cnt = mcs_reg_read(mcs, reg); + + reg = MCSX_CSE_TX_MEM_SLAVE_IFOUTUNCTLOCTETSX(id); + stats->unctl_octet_cnt = mcs_reg_read(mcs, reg); + + reg = MCSX_CSE_TX_MEM_SLAVE_IFOUTUNCTLUCPKTSX(id); + stats->unctl_pkt_ucast_cnt = mcs_reg_read(mcs, reg); + + reg = MCSX_CSE_TX_MEM_SLAVE_OUTOCTETSSECYENCRYPTEDX(id); + stats->octet_encrypted_cnt = mcs_reg_read(mcs, reg); + + reg = MCSX_CSE_TX_MEM_SLAVE_OUTOCTETSSECYPROTECTEDX(id); + stats->octet_protected_cnt = mcs_reg_read(mcs, reg); + + reg = MCSX_CSE_TX_MEM_SLAVE_OUTPKTSSECYNOACTIVESAX(id); + stats->pkt_noactivesa_cnt = mcs_reg_read(mcs, reg); + + reg = MCSX_CSE_TX_MEM_SLAVE_OUTPKTSSECYTOOLONGX(id); + stats->pkt_toolong_cnt = mcs_reg_read(mcs, reg); + + reg = MCSX_CSE_TX_MEM_SLAVE_OUTPKTSSECYUNTAGGEDX(id); + stats->pkt_untagged_cnt = mcs_reg_read(mcs, reg); +} + +void mcs_get_rx_secy_stats(struct mcs *mcs, struct mcs_secy_stats *stats, int id) +{ + u64 reg; + + reg = MCSX_CSE_RX_MEM_SLAVE_IFINCTLBCPKTSX(id); + stats->ctl_pkt_bcast_cnt = mcs_reg_read(mcs, reg); + + reg = MCSX_CSE_RX_MEM_SLAVE_IFINCTLMCPKTSX(id); + stats->ctl_pkt_mcast_cnt = mcs_reg_read(mcs, reg); + + reg = MCSX_CSE_RX_MEM_SLAVE_IFINCTLOCTETSX(id); + stats->ctl_octet_cnt = mcs_reg_read(mcs, reg); + + reg = MCSX_CSE_RX_MEM_SLAVE_IFINCTLUCPKTSX(id); + stats->ctl_pkt_ucast_cnt = mcs_reg_read(mcs, reg); + + reg = MCSX_CSE_RX_MEM_SLAVE_IFINUNCTLBCPKTSX(id); + stats->unctl_pkt_bcast_cnt = mcs_reg_read(mcs, reg); + + reg = MCSX_CSE_RX_MEM_SLAVE_IFINUNCTLMCPKTSX(id); + stats->unctl_pkt_mcast_cnt = mcs_reg_read(mcs, reg); + + reg = MCSX_CSE_RX_MEM_SLAVE_IFINUNCTLOCTETSX(id); + stats->unctl_octet_cnt = mcs_reg_read(mcs, reg); + + reg = MCSX_CSE_RX_MEM_SLAVE_IFINUNCTLUCPKTSX(id); + stats->unctl_pkt_ucast_cnt = mcs_reg_read(mcs, reg); + + reg = MCSX_CSE_RX_MEM_SLAVE_INOCTETSSECYDECRYPTEDX(id); + stats->octet_decrypted_cnt = mcs_reg_read(mcs, reg); + + reg = MCSX_CSE_RX_MEM_SLAVE_INOCTETSSECYVALIDATEX(id); + stats->octet_validated_cnt = mcs_reg_read(mcs, reg); + + reg = MCSX_CSE_RX_MEM_SLAVE_INPKTSCTRLPORTDISABLEDX(id); + stats->pkt_port_disabled_cnt = mcs_reg_read(mcs, reg); + + reg = MCSX_CSE_RX_MEM_SLAVE_INPKTSSECYBADTAGX(id); + stats->pkt_badtag_cnt = mcs_reg_read(mcs, reg); + + reg = MCSX_CSE_RX_MEM_SLAVE_INPKTSSECYNOSAX(id); + stats->pkt_nosa_cnt = mcs_reg_read(mcs, reg); + + reg = MCSX_CSE_RX_MEM_SLAVE_INPKTSSECYNOSAERRORX(id); + stats->pkt_nosaerror_cnt = mcs_reg_read(mcs, reg); + + reg = MCSX_CSE_RX_MEM_SLAVE_INPKTSSECYTAGGEDCTLX(id); + stats->pkt_tagged_ctl_cnt = mcs_reg_read(mcs, reg); + + reg = MCSX_CSE_RX_MEM_SLAVE_INPKTSSECYUNTAGGEDX(id); + stats->pkt_untaged_cnt = mcs_reg_read(mcs, reg); + + reg = MCSX_CSE_RX_MEM_SLAVE_INPKTSSECYCTLX(id); + stats->pkt_ctl_cnt = mcs_reg_read(mcs, reg); + + if (mcs->hw->mcs_blks > 1) { + reg = MCSX_CSE_RX_MEM_SLAVE_INPKTSSECYNOTAGX(id); + stats->pkt_notag_cnt = mcs_reg_read(mcs, reg); + } +} + +void mcs_get_flowid_stats(struct mcs *mcs, struct mcs_flowid_stats *stats, + int id, int dir) +{ + u64 reg; + + if (dir == MCS_RX) + reg = MCSX_CSE_RX_MEM_SLAVE_INPKTSFLOWIDTCAMHITX(id); + else + reg = MCSX_CSE_TX_MEM_SLAVE_OUTPKTSFLOWIDTCAMHITX(id); + + stats->tcam_hit_cnt = mcs_reg_read(mcs, reg); +} + +void mcs_get_port_stats(struct mcs *mcs, struct mcs_port_stats *stats, + int id, int dir) +{ + u64 reg; + + if (dir == MCS_RX) { + reg = MCSX_CSE_RX_MEM_SLAVE_INPKTSFLOWIDTCAMMISSX(id); + stats->tcam_miss_cnt = mcs_reg_read(mcs, reg); + + reg = MCSX_CSE_RX_MEM_SLAVE_INPKTSPARSEERRX(id); + stats->parser_err_cnt = mcs_reg_read(mcs, reg); + if (mcs->hw->mcs_blks > 1) { + reg = MCSX_CSE_RX_MEM_SLAVE_INPKTSEARLYPREEMPTERRX(id); + stats->preempt_err_cnt = mcs_reg_read(mcs, reg); + } + } else { + reg = MCSX_CSE_TX_MEM_SLAVE_OUTPKTSFLOWIDTCAMMISSX(id); + stats->tcam_miss_cnt = mcs_reg_read(mcs, reg); + + reg = MCSX_CSE_TX_MEM_SLAVE_OUTPKTSPARSEERRX(id); + stats->parser_err_cnt = mcs_reg_read(mcs, reg); + + reg = MCSX_CSE_TX_MEM_SLAVE_OUTPKTSSECTAGINSERTIONERRX(id); + stats->sectag_insert_err_cnt = mcs_reg_read(mcs, reg); + } +} + +void mcs_get_sa_stats(struct mcs *mcs, struct mcs_sa_stats *stats, int id, int dir) +{ + u64 reg; + + if (dir == MCS_RX) { + reg = MCSX_CSE_RX_MEM_SLAVE_INPKTSSAINVALIDX(id); + stats->pkt_invalid_cnt = mcs_reg_read(mcs, reg); + + reg = MCSX_CSE_RX_MEM_SLAVE_INPKTSSANOTUSINGSAERRORX(id); + stats->pkt_nosaerror_cnt = mcs_reg_read(mcs, reg); + + reg = MCSX_CSE_RX_MEM_SLAVE_INPKTSSANOTVALIDX(id); + stats->pkt_notvalid_cnt = mcs_reg_read(mcs, reg); + + reg = MCSX_CSE_RX_MEM_SLAVE_INPKTSSAOKX(id); + stats->pkt_ok_cnt = mcs_reg_read(mcs, reg); + + reg = MCSX_CSE_RX_MEM_SLAVE_INPKTSSAUNUSEDSAX(id); + stats->pkt_nosa_cnt = mcs_reg_read(mcs, reg); + } else { + reg = MCSX_CSE_TX_MEM_SLAVE_OUTPKTSSAENCRYPTEDX(id); + stats->pkt_encrypt_cnt = mcs_reg_read(mcs, reg); + + reg = MCSX_CSE_TX_MEM_SLAVE_OUTPKTSSAPROTECTEDX(id); + stats->pkt_protected_cnt = mcs_reg_read(mcs, reg); + } +} + +void mcs_get_sc_stats(struct mcs *mcs, struct mcs_sc_stats *stats, + int id, int dir) +{ + u64 reg; + + if (dir == MCS_RX) { + reg = MCSX_CSE_RX_MEM_SLAVE_INPKTSSCCAMHITX(id); + stats->hit_cnt = mcs_reg_read(mcs, reg); + + reg = MCSX_CSE_RX_MEM_SLAVE_INPKTSSCINVALIDX(id); + stats->pkt_invalid_cnt = mcs_reg_read(mcs, reg); + + reg = MCSX_CSE_RX_MEM_SLAVE_INPKTSSCLATEORDELAYEDX(id); + stats->pkt_late_cnt = mcs_reg_read(mcs, reg); + + reg = MCSX_CSE_RX_MEM_SLAVE_INPKTSSCNOTVALIDX(id); + stats->pkt_notvalid_cnt = mcs_reg_read(mcs, reg); + + reg = MCSX_CSE_RX_MEM_SLAVE_INPKTSSCUNCHECKEDX(id); + stats->pkt_unchecked_cnt = mcs_reg_read(mcs, reg); + + if (mcs->hw->mcs_blks > 1) { + reg = MCSX_CSE_RX_MEM_SLAVE_INPKTSSCDELAYEDX(id); + stats->pkt_delay_cnt = mcs_reg_read(mcs, reg); + + reg = MCSX_CSE_RX_MEM_SLAVE_INPKTSSCOKX(id); + stats->pkt_ok_cnt = mcs_reg_read(mcs, reg); + } + if (mcs->hw->mcs_blks == 1) { + reg = MCSX_CSE_RX_MEM_SLAVE_INOCTETSSCDECRYPTEDX(id); + stats->octet_decrypt_cnt = mcs_reg_read(mcs, reg); + + reg = MCSX_CSE_RX_MEM_SLAVE_INOCTETSSCVALIDATEX(id); + stats->octet_validate_cnt = mcs_reg_read(mcs, reg); + } + } else { + reg = MCSX_CSE_TX_MEM_SLAVE_OUTPKTSSCENCRYPTEDX(id); + stats->pkt_encrypt_cnt = mcs_reg_read(mcs, reg); + + reg = MCSX_CSE_TX_MEM_SLAVE_OUTPKTSSCPROTECTEDX(id); + stats->pkt_protected_cnt = mcs_reg_read(mcs, reg); + + if (mcs->hw->mcs_blks == 1) { + reg = MCSX_CSE_TX_MEM_SLAVE_OUTOCTETSSCENCRYPTEDX(id); + stats->octet_encrypt_cnt = mcs_reg_read(mcs, reg); + + reg = MCSX_CSE_TX_MEM_SLAVE_OUTOCTETSSCPROTECTEDX(id); + stats->octet_protected_cnt = mcs_reg_read(mcs, reg); + } + } +} + +void mcs_clear_stats(struct mcs *mcs, u8 type, u8 id, int dir) +{ + struct mcs_flowid_stats flowid_st; + struct mcs_port_stats port_st; + struct mcs_secy_stats secy_st; + struct mcs_sc_stats sc_st; + struct mcs_sa_stats sa_st; + u64 reg; + + if (dir == MCS_RX) + reg = MCSX_CSE_RX_SLAVE_CTRL; + else + reg = MCSX_CSE_TX_SLAVE_CTRL; + + mcs_reg_write(mcs, reg, BIT_ULL(0)); + + switch (type) { + case MCS_FLOWID_STATS: + mcs_get_flowid_stats(mcs, &flowid_st, id, dir); + break; + case MCS_SECY_STATS: + if (dir == MCS_RX) + mcs_get_rx_secy_stats(mcs, &secy_st, id); + else + mcs_get_tx_secy_stats(mcs, &secy_st, id); + break; + case MCS_SC_STATS: + mcs_get_sc_stats(mcs, &sc_st, id, dir); + break; + case MCS_SA_STATS: + mcs_get_sa_stats(mcs, &sa_st, id, dir); + break; + case MCS_PORT_STATS: + mcs_get_port_stats(mcs, &port_st, id, dir); + break; + } + + mcs_reg_write(mcs, reg, 0x0); +} + +int mcs_clear_all_stats(struct mcs *mcs, u16 pcifunc, int dir) +{ + struct mcs_rsrc_map *map; + int id; + + if (dir == MCS_RX) + map = &mcs->rx; + else + map = &mcs->tx; + + /* Clear FLOWID stats */ + for (id = 0; id < map->flow_ids.max; id++) { + if (map->flowid2pf_map[id] != pcifunc) + continue; + mcs_clear_stats(mcs, MCS_FLOWID_STATS, id, dir); + } + + /* Clear SECY stats */ + for (id = 0; id < map->secy.max; id++) { + if (map->secy2pf_map[id] != pcifunc) + continue; + mcs_clear_stats(mcs, MCS_SECY_STATS, id, dir); + } + + /* Clear SC stats */ + for (id = 0; id < map->secy.max; id++) { + if (map->sc2pf_map[id] != pcifunc) + continue; + mcs_clear_stats(mcs, MCS_SC_STATS, id, dir); + } + + /* Clear SA stats */ + for (id = 0; id < map->sa.max; id++) { + if (map->sa2pf_map[id] != pcifunc) + continue; + mcs_clear_stats(mcs, MCS_SA_STATS, id, dir); + } + return 0; +} + +void mcs_pn_table_write(struct mcs *mcs, u8 pn_id, u64 next_pn, u8 dir) +{ + u64 reg; + + if (dir == MCS_RX) + reg = MCSX_CPM_RX_SLAVE_SA_PN_TABLE_MEMX(pn_id); + else + reg = MCSX_CPM_TX_SLAVE_SA_PN_TABLE_MEMX(pn_id); + mcs_reg_write(mcs, reg, next_pn); +} + +void cn10kb_mcs_tx_sa_mem_map_write(struct mcs *mcs, struct mcs_tx_sc_sa_map *map) +{ + u64 reg, val; + + val = (map->sa_index0 & 0xFF) | + (map->sa_index1 & 0xFF) << 9 | + (map->rekey_ena & 0x1) << 18 | + (map->sa_index0_vld & 0x1) << 19 | + (map->sa_index1_vld & 0x1) << 20 | + (map->tx_sa_active & 0x1) << 21 | + map->sectag_sci << 22; + reg = MCSX_CPM_TX_SLAVE_SA_MAP_MEM_0X(map->sc_id); + mcs_reg_write(mcs, reg, val); + + val = map->sectag_sci >> 42; + reg = MCSX_CPM_TX_SLAVE_SA_MAP_MEM_1X(map->sc_id); + mcs_reg_write(mcs, reg, val); +} + +void cn10kb_mcs_rx_sa_mem_map_write(struct mcs *mcs, struct mcs_rx_sc_sa_map *map) +{ + u64 val, reg; + + val = (map->sa_index & 0xFF) | map->sa_in_use << 9; + + reg = MCSX_CPM_RX_SLAVE_SA_MAP_MEMX((4 * map->sc_id) + map->an); + mcs_reg_write(mcs, reg, val); +} + +void mcs_sa_plcy_write(struct mcs *mcs, u64 *plcy, int sa_id, int dir) +{ + int reg_id; + u64 reg; + + if (dir == MCS_RX) { + for (reg_id = 0; reg_id < 8; reg_id++) { + reg = MCSX_CPM_RX_SLAVE_SA_PLCY_MEMX(reg_id, sa_id); + mcs_reg_write(mcs, reg, plcy[reg_id]); + } + } else { + for (reg_id = 0; reg_id < 9; reg_id++) { + reg = MCSX_CPM_TX_SLAVE_SA_PLCY_MEMX(reg_id, sa_id); + mcs_reg_write(mcs, reg, plcy[reg_id]); + } + } +} + +void mcs_ena_dis_sc_cam_entry(struct mcs *mcs, int sc_id, int ena) +{ + u64 reg, val; + + reg = MCSX_CPM_RX_SLAVE_SC_CAM_ENA(0); + if (sc_id > 63) + reg = MCSX_CPM_RX_SLAVE_SC_CAM_ENA(1); + + if (ena) + val = mcs_reg_read(mcs, reg) | BIT_ULL(sc_id); + else + val = mcs_reg_read(mcs, reg) & ~BIT_ULL(sc_id); + + mcs_reg_write(mcs, reg, val); +} + +void mcs_rx_sc_cam_write(struct mcs *mcs, u64 sci, u64 secy, int sc_id) +{ + mcs_reg_write(mcs, MCSX_CPM_RX_SLAVE_SC_CAMX(0, sc_id), sci); + mcs_reg_write(mcs, MCSX_CPM_RX_SLAVE_SC_CAMX(1, sc_id), secy); + /* Enable SC CAM */ + mcs_ena_dis_sc_cam_entry(mcs, sc_id, true); +} + +void mcs_secy_plcy_write(struct mcs *mcs, u64 plcy, int secy_id, int dir) +{ + u64 reg; + + if (dir == MCS_RX) + reg = MCSX_CPM_RX_SLAVE_SECY_PLCY_MEM_0X(secy_id); + else + reg = MCSX_CPM_TX_SLAVE_SECY_PLCY_MEMX(secy_id); + + mcs_reg_write(mcs, reg, plcy); + + if (mcs->hw->mcs_blks == 1 && dir == MCS_RX) + mcs_reg_write(mcs, MCSX_CPM_RX_SLAVE_SECY_PLCY_MEM_1X(secy_id), 0x0ull); +} + +void cn10kb_mcs_flowid_secy_map(struct mcs *mcs, struct secy_mem_map *map, int dir) +{ + u64 reg, val; + + val = (map->secy & 0x7F) | (map->ctrl_pkt & 0x1) << 8; + if (dir == MCS_RX) { + reg = MCSX_CPM_RX_SLAVE_SECY_MAP_MEMX(map->flow_id); + } else { + val |= (map->sc & 0x7F) << 9; + reg = MCSX_CPM_TX_SLAVE_SECY_MAP_MEM_0X(map->flow_id); + } + + mcs_reg_write(mcs, reg, val); +} + +void mcs_ena_dis_flowid_entry(struct mcs *mcs, int flow_id, int dir, int ena) +{ + u64 reg, val; + + if (dir == MCS_RX) { + reg = MCSX_CPM_RX_SLAVE_FLOWID_TCAM_ENA_0; + if (flow_id > 63) + reg = MCSX_CPM_RX_SLAVE_FLOWID_TCAM_ENA_1; + } else { + reg = MCSX_CPM_TX_SLAVE_FLOWID_TCAM_ENA_0; + if (flow_id > 63) + reg = MCSX_CPM_TX_SLAVE_FLOWID_TCAM_ENA_1; + } + + /* Enable/Disable the tcam entry */ + if (ena) + val = mcs_reg_read(mcs, reg) | BIT_ULL(flow_id); + else + val = mcs_reg_read(mcs, reg) & ~BIT_ULL(flow_id); + + mcs_reg_write(mcs, reg, val); +} + +void mcs_flowid_entry_write(struct mcs *mcs, u64 *data, u64 *mask, int flow_id, int dir) +{ + int reg_id; + u64 reg; + + if (dir == MCS_RX) { + for (reg_id = 0; reg_id < 4; reg_id++) { + reg = MCSX_CPM_RX_SLAVE_FLOWID_TCAM_DATAX(reg_id, flow_id); + mcs_reg_write(mcs, reg, data[reg_id]); + } + for (reg_id = 0; reg_id < 4; reg_id++) { + reg = MCSX_CPM_RX_SLAVE_FLOWID_TCAM_MASKX(reg_id, flow_id); + mcs_reg_write(mcs, reg, mask[reg_id]); + } + } else { + for (reg_id = 0; reg_id < 4; reg_id++) { + reg = MCSX_CPM_TX_SLAVE_FLOWID_TCAM_DATAX(reg_id, flow_id); + mcs_reg_write(mcs, reg, data[reg_id]); + } + for (reg_id = 0; reg_id < 4; reg_id++) { + reg = MCSX_CPM_TX_SLAVE_FLOWID_TCAM_MASKX(reg_id, flow_id); + mcs_reg_write(mcs, reg, mask[reg_id]); + } + } +} + +int mcs_install_flowid_bypass_entry(struct mcs *mcs) +{ + int flow_id, secy_id, reg_id; + struct secy_mem_map map; + u64 reg, plcy = 0; + + /* Flow entry */ + flow_id = mcs->hw->tcam_entries - MCS_RSRC_RSVD_CNT; + __set_bit(flow_id, mcs->rx.flow_ids.bmap); + __set_bit(flow_id, mcs->tx.flow_ids.bmap); + + for (reg_id = 0; reg_id < 4; reg_id++) { + reg = MCSX_CPM_RX_SLAVE_FLOWID_TCAM_MASKX(reg_id, flow_id); + mcs_reg_write(mcs, reg, GENMASK_ULL(63, 0)); + } + for (reg_id = 0; reg_id < 4; reg_id++) { + reg = MCSX_CPM_TX_SLAVE_FLOWID_TCAM_MASKX(reg_id, flow_id); + mcs_reg_write(mcs, reg, GENMASK_ULL(63, 0)); + } + /* secy */ + secy_id = mcs->hw->secy_entries - MCS_RSRC_RSVD_CNT; + __set_bit(secy_id, mcs->rx.secy.bmap); + __set_bit(secy_id, mcs->tx.secy.bmap); + + /* Set validate frames to NULL and enable control port */ + plcy = 0x7ull; + if (mcs->hw->mcs_blks > 1) + plcy = BIT_ULL(0) | 0x3ull << 4; + mcs_secy_plcy_write(mcs, plcy, secy_id, MCS_RX); + + /* Enable control port and set mtu to max */ + plcy = BIT_ULL(0) | GENMASK_ULL(43, 28); + if (mcs->hw->mcs_blks > 1) + plcy = BIT_ULL(0) | GENMASK_ULL(63, 48); + mcs_secy_plcy_write(mcs, plcy, secy_id, MCS_TX); + + /* Map flowid to secy */ + map.secy = secy_id; + map.ctrl_pkt = 0; + map.flow_id = flow_id; + mcs->mcs_ops->mcs_flowid_secy_map(mcs, &map, MCS_RX); + map.sc = secy_id; + mcs->mcs_ops->mcs_flowid_secy_map(mcs, &map, MCS_TX); + + /* Enable Flowid entry */ + mcs_ena_dis_flowid_entry(mcs, flow_id, MCS_RX, true); + mcs_ena_dis_flowid_entry(mcs, flow_id, MCS_TX, true); + + return 0; +} + +void mcs_clear_secy_plcy(struct mcs *mcs, int secy_id, int dir) +{ + struct mcs_rsrc_map *map; + int flow_id; + + if (dir == MCS_RX) + map = &mcs->rx; + else + map = &mcs->tx; + + /* Clear secy memory to zero */ + mcs_secy_plcy_write(mcs, 0, secy_id, dir); + + /* Disable the tcam entry using this secy */ + for (flow_id = 0; flow_id < map->flow_ids.max; flow_id++) { + if (map->flowid2secy_map[flow_id] != secy_id) + continue; + mcs_ena_dis_flowid_entry(mcs, flow_id, dir, false); + } +} + +int mcs_alloc_ctrlpktrule(struct rsrc_bmap *rsrc, u16 *pf_map, u16 offset, u16 pcifunc) +{ + int rsrc_id; + + if (!rsrc->bmap) + return -EINVAL; + + rsrc_id = bitmap_find_next_zero_area(rsrc->bmap, rsrc->max, offset, 1, 0); + if (rsrc_id >= rsrc->max) + return -ENOSPC; + + bitmap_set(rsrc->bmap, rsrc_id, 1); + pf_map[rsrc_id] = pcifunc; + + return rsrc_id; +} + +int mcs_free_ctrlpktrule(struct mcs *mcs, struct mcs_free_ctrl_pkt_rule_req *req) +{ + u16 pcifunc = req->hdr.pcifunc; + struct mcs_rsrc_map *map; + u64 dis, reg; + int id, rc; + + reg = (req->dir == MCS_RX) ? MCSX_PEX_RX_SLAVE_RULE_ENABLE : MCSX_PEX_TX_SLAVE_RULE_ENABLE; + map = (req->dir == MCS_RX) ? &mcs->rx : &mcs->tx; + + if (req->all) { + for (id = 0; id < map->ctrlpktrule.max; id++) { + if (map->ctrlpktrule2pf_map[id] != pcifunc) + continue; + mcs_free_rsrc(&map->ctrlpktrule, map->ctrlpktrule2pf_map, id, pcifunc); + dis = mcs_reg_read(mcs, reg); + dis &= ~BIT_ULL(id); + mcs_reg_write(mcs, reg, dis); + } + return 0; + } + + rc = mcs_free_rsrc(&map->ctrlpktrule, map->ctrlpktrule2pf_map, req->rule_idx, pcifunc); + dis = mcs_reg_read(mcs, reg); + dis &= ~BIT_ULL(req->rule_idx); + mcs_reg_write(mcs, reg, dis); + + return rc; +} + +int mcs_ctrlpktrule_write(struct mcs *mcs, struct mcs_ctrl_pkt_rule_write_req *req) +{ + u64 reg, enb; + u64 idx; + + switch (req->rule_type) { + case MCS_CTRL_PKT_RULE_TYPE_ETH: + req->data0 &= GENMASK(15, 0); + if (req->data0 != ETH_P_PAE) + return -EINVAL; + + idx = req->rule_idx - MCS_CTRLPKT_ETYPE_RULE_OFFSET; + reg = (req->dir == MCS_RX) ? MCSX_PEX_RX_SLAVE_RULE_ETYPE_CFGX(idx) : + MCSX_PEX_TX_SLAVE_RULE_ETYPE_CFGX(idx); + + mcs_reg_write(mcs, reg, req->data0); + break; + case MCS_CTRL_PKT_RULE_TYPE_DA: + if (!(req->data0 & BIT_ULL(40))) + return -EINVAL; + + idx = req->rule_idx - MCS_CTRLPKT_DA_RULE_OFFSET; + reg = (req->dir == MCS_RX) ? MCSX_PEX_RX_SLAVE_RULE_DAX(idx) : + MCSX_PEX_TX_SLAVE_RULE_DAX(idx); + + mcs_reg_write(mcs, reg, req->data0 & GENMASK_ULL(47, 0)); + break; + case MCS_CTRL_PKT_RULE_TYPE_RANGE: + if (!(req->data0 & BIT_ULL(40)) || !(req->data1 & BIT_ULL(40))) + return -EINVAL; + + idx = req->rule_idx - MCS_CTRLPKT_DA_RANGE_RULE_OFFSET; + if (req->dir == MCS_RX) { + reg = MCSX_PEX_RX_SLAVE_RULE_DA_RANGE_MINX(idx); + mcs_reg_write(mcs, reg, req->data0 & GENMASK_ULL(47, 0)); + reg = MCSX_PEX_RX_SLAVE_RULE_DA_RANGE_MAXX(idx); + mcs_reg_write(mcs, reg, req->data1 & GENMASK_ULL(47, 0)); + } else { + reg = MCSX_PEX_TX_SLAVE_RULE_DA_RANGE_MINX(idx); + mcs_reg_write(mcs, reg, req->data0 & GENMASK_ULL(47, 0)); + reg = MCSX_PEX_TX_SLAVE_RULE_DA_RANGE_MAXX(idx); + mcs_reg_write(mcs, reg, req->data1 & GENMASK_ULL(47, 0)); + } + break; + case MCS_CTRL_PKT_RULE_TYPE_COMBO: + req->data2 &= GENMASK(15, 0); + if (req->data2 != ETH_P_PAE || !(req->data0 & BIT_ULL(40)) || + !(req->data1 & BIT_ULL(40))) + return -EINVAL; + + idx = req->rule_idx - MCS_CTRLPKT_COMBO_RULE_OFFSET; + if (req->dir == MCS_RX) { + reg = MCSX_PEX_RX_SLAVE_RULE_COMBO_MINX(idx); + mcs_reg_write(mcs, reg, req->data0 & GENMASK_ULL(47, 0)); + reg = MCSX_PEX_RX_SLAVE_RULE_COMBO_MAXX(idx); + mcs_reg_write(mcs, reg, req->data1 & GENMASK_ULL(47, 0)); + reg = MCSX_PEX_RX_SLAVE_RULE_COMBO_ETX(idx); + mcs_reg_write(mcs, reg, req->data2); + } else { + reg = MCSX_PEX_TX_SLAVE_RULE_COMBO_MINX(idx); + mcs_reg_write(mcs, reg, req->data0 & GENMASK_ULL(47, 0)); + reg = MCSX_PEX_TX_SLAVE_RULE_COMBO_MAXX(idx); + mcs_reg_write(mcs, reg, req->data1 & GENMASK_ULL(47, 0)); + reg = MCSX_PEX_TX_SLAVE_RULE_COMBO_ETX(idx); + mcs_reg_write(mcs, reg, req->data2); + } + break; + case MCS_CTRL_PKT_RULE_TYPE_MAC: + if (!(req->data0 & BIT_ULL(40))) + return -EINVAL; + + idx = req->rule_idx - MCS_CTRLPKT_MAC_EN_RULE_OFFSET; + reg = (req->dir == MCS_RX) ? MCSX_PEX_RX_SLAVE_RULE_MAC : + MCSX_PEX_TX_SLAVE_RULE_MAC; + + mcs_reg_write(mcs, reg, req->data0 & GENMASK_ULL(47, 0)); + break; + } + + reg = (req->dir == MCS_RX) ? MCSX_PEX_RX_SLAVE_RULE_ENABLE : MCSX_PEX_TX_SLAVE_RULE_ENABLE; + + enb = mcs_reg_read(mcs, reg); + enb |= BIT_ULL(req->rule_idx); + mcs_reg_write(mcs, reg, enb); + + return 0; +} + +int mcs_free_rsrc(struct rsrc_bmap *rsrc, u16 *pf_map, int rsrc_id, u16 pcifunc) +{ + /* Check if the rsrc_id is mapped to PF/VF */ + if (pf_map[rsrc_id] != pcifunc) + return -EINVAL; + + rvu_free_rsrc(rsrc, rsrc_id); + pf_map[rsrc_id] = 0; + return 0; +} + +/* Free all the cam resources mapped to pf */ +int mcs_free_all_rsrc(struct mcs *mcs, int dir, u16 pcifunc) +{ + struct mcs_rsrc_map *map; + int id; + + if (dir == MCS_RX) + map = &mcs->rx; + else + map = &mcs->tx; + + /* free tcam entries */ + for (id = 0; id < map->flow_ids.max; id++) { + if (map->flowid2pf_map[id] != pcifunc) + continue; + mcs_free_rsrc(&map->flow_ids, map->flowid2pf_map, + id, pcifunc); + mcs_ena_dis_flowid_entry(mcs, id, dir, false); + } + + /* free secy entries */ + for (id = 0; id < map->secy.max; id++) { + if (map->secy2pf_map[id] != pcifunc) + continue; + mcs_free_rsrc(&map->secy, map->secy2pf_map, + id, pcifunc); + mcs_clear_secy_plcy(mcs, id, dir); + } + + /* free sc entries */ + for (id = 0; id < map->secy.max; id++) { + if (map->sc2pf_map[id] != pcifunc) + continue; + mcs_free_rsrc(&map->sc, map->sc2pf_map, id, pcifunc); + + /* Disable SC CAM only on RX side */ + if (dir == MCS_RX) + mcs_ena_dis_sc_cam_entry(mcs, id, false); + } + + /* free sa entries */ + for (id = 0; id < map->sa.max; id++) { + if (map->sa2pf_map[id] != pcifunc) + continue; + mcs_free_rsrc(&map->sa, map->sa2pf_map, id, pcifunc); + } + return 0; +} + +int mcs_alloc_rsrc(struct rsrc_bmap *rsrc, u16 *pf_map, u16 pcifunc) +{ + int rsrc_id; + + rsrc_id = rvu_alloc_rsrc(rsrc); + if (rsrc_id < 0) + return -ENOMEM; + pf_map[rsrc_id] = pcifunc; + return rsrc_id; +} + +int mcs_alloc_all_rsrc(struct mcs *mcs, u8 *flow_id, u8 *secy_id, + u8 *sc_id, u8 *sa1_id, u8 *sa2_id, u16 pcifunc, int dir) +{ + struct mcs_rsrc_map *map; + int id; + + if (dir == MCS_RX) + map = &mcs->rx; + else + map = &mcs->tx; + + id = mcs_alloc_rsrc(&map->flow_ids, map->flowid2pf_map, pcifunc); + if (id < 0) + return -ENOMEM; + *flow_id = id; + + id = mcs_alloc_rsrc(&map->secy, map->secy2pf_map, pcifunc); + if (id < 0) + return -ENOMEM; + *secy_id = id; + + id = mcs_alloc_rsrc(&map->sc, map->sc2pf_map, pcifunc); + if (id < 0) + return -ENOMEM; + *sc_id = id; + + id = mcs_alloc_rsrc(&map->sa, map->sa2pf_map, pcifunc); + if (id < 0) + return -ENOMEM; + *sa1_id = id; + + id = mcs_alloc_rsrc(&map->sa, map->sa2pf_map, pcifunc); + if (id < 0) + return -ENOMEM; + *sa2_id = id; + + return 0; +} + +static void cn10kb_mcs_tx_pn_wrapped_handler(struct mcs *mcs) +{ + struct mcs_intr_event event = { 0 }; + struct rsrc_bmap *sc_bmap; + u64 val; + int sc; + + sc_bmap = &mcs->tx.sc; + + event.mcs_id = mcs->mcs_id; + event.intr_mask = MCS_CPM_TX_PACKET_XPN_EQ0_INT; + + for_each_set_bit(sc, sc_bmap->bmap, mcs->hw->sc_entries) { + val = mcs_reg_read(mcs, MCSX_CPM_TX_SLAVE_SA_MAP_MEM_0X(sc)); + + if (mcs->tx_sa_active[sc]) + /* SA_index1 was used and got expired */ + event.sa_id = (val >> 9) & 0xFF; + else + /* SA_index0 was used and got expired */ + event.sa_id = val & 0xFF; + + event.pcifunc = mcs->tx.sa2pf_map[event.sa_id]; + mcs_add_intr_wq_entry(mcs, &event); + } +} + +static void cn10kb_mcs_tx_pn_thresh_reached_handler(struct mcs *mcs) +{ + struct mcs_intr_event event = { 0 }; + struct rsrc_bmap *sc_bmap; + u64 val, status; + int sc; + + sc_bmap = &mcs->tx.sc; + + event.mcs_id = mcs->mcs_id; + event.intr_mask = MCS_CPM_TX_PN_THRESH_REACHED_INT; + + /* TX SA interrupt is raised only if autorekey is enabled. + * MCS_CPM_TX_SLAVE_SA_MAP_MEM_0X[sc].tx_sa_active bit gets toggled if + * one of two SAs mapped to SC gets expired. If tx_sa_active=0 implies + * SA in SA_index1 got expired else SA in SA_index0 got expired. + */ + for_each_set_bit(sc, sc_bmap->bmap, mcs->hw->sc_entries) { + val = mcs_reg_read(mcs, MCSX_CPM_TX_SLAVE_SA_MAP_MEM_0X(sc)); + /* Auto rekey is enable */ + if (!((val >> 18) & 0x1)) + continue; + + status = (val >> 21) & 0x1; + + /* Check if tx_sa_active status had changed */ + if (status == mcs->tx_sa_active[sc]) + continue; + /* SA_index0 is expired */ + if (status) + event.sa_id = val & 0xFF; + else + event.sa_id = (val >> 9) & 0xFF; + + event.pcifunc = mcs->tx.sa2pf_map[event.sa_id]; + mcs_add_intr_wq_entry(mcs, &event); + } +} + +static void mcs_rx_pn_thresh_reached_handler(struct mcs *mcs) +{ + struct mcs_intr_event event = { 0 }; + int sa, reg; + u64 intr; + + /* Check expired SAs */ + for (reg = 0; reg < (mcs->hw->sa_entries / 64); reg++) { + /* Bit high in *PN_THRESH_REACHEDX implies + * corresponding SAs are expired. + */ + intr = mcs_reg_read(mcs, MCSX_CPM_RX_SLAVE_PN_THRESH_REACHEDX(reg)); + for (sa = 0; sa < 64; sa++) { + if (!(intr & BIT_ULL(sa))) + continue; + + event.mcs_id = mcs->mcs_id; + event.intr_mask = MCS_CPM_RX_PN_THRESH_REACHED_INT; + event.sa_id = sa + (reg * 64); + event.pcifunc = mcs->rx.sa2pf_map[event.sa_id]; + mcs_add_intr_wq_entry(mcs, &event); + } + } +} + +static void mcs_rx_misc_intr_handler(struct mcs *mcs, u64 intr) +{ + struct mcs_intr_event event = { 0 }; + + event.mcs_id = mcs->mcs_id; + event.pcifunc = mcs->pf_map[0]; + + if (intr & MCS_CPM_RX_INT_SECTAG_V_EQ1) + event.intr_mask = MCS_CPM_RX_SECTAG_V_EQ1_INT; + if (intr & MCS_CPM_RX_INT_SECTAG_E_EQ0_C_EQ1) + event.intr_mask |= MCS_CPM_RX_SECTAG_E_EQ0_C_EQ1_INT; + if (intr & MCS_CPM_RX_INT_SL_GTE48) + event.intr_mask |= MCS_CPM_RX_SECTAG_SL_GTE48_INT; + if (intr & MCS_CPM_RX_INT_ES_EQ1_SC_EQ1) + event.intr_mask |= MCS_CPM_RX_SECTAG_ES_EQ1_SC_EQ1_INT; + if (intr & MCS_CPM_RX_INT_SC_EQ1_SCB_EQ1) + event.intr_mask |= MCS_CPM_RX_SECTAG_SC_EQ1_SCB_EQ1_INT; + if (intr & MCS_CPM_RX_INT_PACKET_XPN_EQ0) + event.intr_mask |= MCS_CPM_RX_PACKET_XPN_EQ0_INT; + + mcs_add_intr_wq_entry(mcs, &event); +} + +static void mcs_tx_misc_intr_handler(struct mcs *mcs, u64 intr) +{ + struct mcs_intr_event event = { 0 }; + + if (!(intr & MCS_CPM_TX_INT_SA_NOT_VALID)) + return; + + event.mcs_id = mcs->mcs_id; + event.pcifunc = mcs->pf_map[0]; + + event.intr_mask = MCS_CPM_TX_SA_NOT_VALID_INT; + + mcs_add_intr_wq_entry(mcs, &event); +} + +void cn10kb_mcs_bbe_intr_handler(struct mcs *mcs, u64 intr, + enum mcs_direction dir) +{ + u64 val, reg; + int lmac; + + if (!(intr & 0x6ULL)) + return; + + if (intr & BIT_ULL(1)) + reg = (dir == MCS_RX) ? MCSX_BBE_RX_SLAVE_DFIFO_OVERFLOW_0 : + MCSX_BBE_TX_SLAVE_DFIFO_OVERFLOW_0; + else + reg = (dir == MCS_RX) ? MCSX_BBE_RX_SLAVE_PLFIFO_OVERFLOW_0 : + MCSX_BBE_TX_SLAVE_PLFIFO_OVERFLOW_0; + val = mcs_reg_read(mcs, reg); + + /* policy/data over flow occurred */ + for (lmac = 0; lmac < mcs->hw->lmac_cnt; lmac++) { + if (!(val & BIT_ULL(lmac))) + continue; + dev_warn(mcs->dev, "BEE:Policy or data overflow occurred on lmac:%d\n", lmac); + } +} + +void cn10kb_mcs_pab_intr_handler(struct mcs *mcs, u64 intr, + enum mcs_direction dir) +{ + int lmac; + + if (!(intr & 0xFFFFFULL)) + return; + + for (lmac = 0; lmac < mcs->hw->lmac_cnt; lmac++) { + if (intr & BIT_ULL(lmac)) + dev_warn(mcs->dev, "PAB: overflow occurred on lmac:%d\n", lmac); + } +} + +static irqreturn_t mcs_ip_intr_handler(int irq, void *mcs_irq) +{ + struct mcs *mcs = (struct mcs *)mcs_irq; + u64 intr, cpm_intr, bbe_intr, pab_intr; + + /* Disable the interrupt */ + mcs_reg_write(mcs, MCSX_IP_INT_ENA_W1C, BIT_ULL(0)); + + /* Check which block has interrupt*/ + intr = mcs_reg_read(mcs, MCSX_TOP_SLAVE_INT_SUM); + + /* CPM RX */ + if (intr & MCS_CPM_RX_INT_ENA) { + /* Check for PN thresh interrupt bit */ + cpm_intr = mcs_reg_read(mcs, MCSX_CPM_RX_SLAVE_RX_INT); + + if (cpm_intr & MCS_CPM_RX_INT_PN_THRESH_REACHED) + mcs_rx_pn_thresh_reached_handler(mcs); + + if (cpm_intr & MCS_CPM_RX_INT_ALL) + mcs_rx_misc_intr_handler(mcs, cpm_intr); + + /* Clear the interrupt */ + mcs_reg_write(mcs, MCSX_CPM_RX_SLAVE_RX_INT, cpm_intr); + } + + /* CPM TX */ + if (intr & MCS_CPM_TX_INT_ENA) { + cpm_intr = mcs_reg_read(mcs, MCSX_CPM_TX_SLAVE_TX_INT); + + if (cpm_intr & MCS_CPM_TX_INT_PN_THRESH_REACHED) { + if (mcs->hw->mcs_blks > 1) + cnf10kb_mcs_tx_pn_thresh_reached_handler(mcs); + else + cn10kb_mcs_tx_pn_thresh_reached_handler(mcs); + } + + if (cpm_intr & MCS_CPM_TX_INT_SA_NOT_VALID) + mcs_tx_misc_intr_handler(mcs, cpm_intr); + + if (cpm_intr & MCS_CPM_TX_INT_PACKET_XPN_EQ0) { + if (mcs->hw->mcs_blks > 1) + cnf10kb_mcs_tx_pn_wrapped_handler(mcs); + else + cn10kb_mcs_tx_pn_wrapped_handler(mcs); + } + /* Clear the interrupt */ + mcs_reg_write(mcs, MCSX_CPM_TX_SLAVE_TX_INT, cpm_intr); + } + + /* BBE RX */ + if (intr & MCS_BBE_RX_INT_ENA) { + bbe_intr = mcs_reg_read(mcs, MCSX_BBE_RX_SLAVE_BBE_INT); + mcs->mcs_ops->mcs_bbe_intr_handler(mcs, bbe_intr, MCS_RX); + + /* Clear the interrupt */ + mcs_reg_write(mcs, MCSX_BBE_RX_SLAVE_BBE_INT_INTR_RW, 0); + mcs_reg_write(mcs, MCSX_BBE_RX_SLAVE_BBE_INT, bbe_intr); + } + + /* BBE TX */ + if (intr & MCS_BBE_TX_INT_ENA) { + bbe_intr = mcs_reg_read(mcs, MCSX_BBE_TX_SLAVE_BBE_INT); + mcs->mcs_ops->mcs_bbe_intr_handler(mcs, bbe_intr, MCS_TX); + + /* Clear the interrupt */ + mcs_reg_write(mcs, MCSX_BBE_TX_SLAVE_BBE_INT_INTR_RW, 0); + mcs_reg_write(mcs, MCSX_BBE_TX_SLAVE_BBE_INT, bbe_intr); + } + + /* PAB RX */ + if (intr & MCS_PAB_RX_INT_ENA) { + pab_intr = mcs_reg_read(mcs, MCSX_PAB_RX_SLAVE_PAB_INT); + mcs->mcs_ops->mcs_pab_intr_handler(mcs, pab_intr, MCS_RX); + + /* Clear the interrupt */ + mcs_reg_write(mcs, MCSX_PAB_RX_SLAVE_PAB_INT_INTR_RW, 0); + mcs_reg_write(mcs, MCSX_PAB_RX_SLAVE_PAB_INT, pab_intr); + } + + /* PAB TX */ + if (intr & MCS_PAB_TX_INT_ENA) { + pab_intr = mcs_reg_read(mcs, MCSX_PAB_TX_SLAVE_PAB_INT); + mcs->mcs_ops->mcs_pab_intr_handler(mcs, pab_intr, MCS_TX); + + /* Clear the interrupt */ + mcs_reg_write(mcs, MCSX_PAB_TX_SLAVE_PAB_INT_INTR_RW, 0); + mcs_reg_write(mcs, MCSX_PAB_TX_SLAVE_PAB_INT, pab_intr); + } + + /* Clear and enable the interrupt */ + mcs_reg_write(mcs, MCSX_IP_INT, BIT_ULL(0)); + mcs_reg_write(mcs, MCSX_IP_INT_ENA_W1S, BIT_ULL(0)); + + return IRQ_HANDLED; +} + +static void *alloc_mem(struct mcs *mcs, int n) +{ + return devm_kcalloc(mcs->dev, n, sizeof(u16), GFP_KERNEL); +} + +static int mcs_alloc_struct_mem(struct mcs *mcs, struct mcs_rsrc_map *res) +{ + struct hwinfo *hw = mcs->hw; + int err; + + res->flowid2pf_map = alloc_mem(mcs, hw->tcam_entries); + if (!res->flowid2pf_map) + return -ENOMEM; + + res->secy2pf_map = alloc_mem(mcs, hw->secy_entries); + if (!res->secy2pf_map) + return -ENOMEM; + + res->sc2pf_map = alloc_mem(mcs, hw->sc_entries); + if (!res->sc2pf_map) + return -ENOMEM; + + res->sa2pf_map = alloc_mem(mcs, hw->sa_entries); + if (!res->sa2pf_map) + return -ENOMEM; + + res->flowid2secy_map = alloc_mem(mcs, hw->tcam_entries); + if (!res->flowid2secy_map) + return -ENOMEM; + + res->ctrlpktrule2pf_map = alloc_mem(mcs, MCS_MAX_CTRLPKT_RULES); + if (!res->ctrlpktrule2pf_map) + return -ENOMEM; + + res->flow_ids.max = hw->tcam_entries - MCS_RSRC_RSVD_CNT; + err = rvu_alloc_bitmap(&res->flow_ids); + if (err) + return err; + + res->secy.max = hw->secy_entries - MCS_RSRC_RSVD_CNT; + err = rvu_alloc_bitmap(&res->secy); + if (err) + return err; + + res->sc.max = hw->sc_entries; + err = rvu_alloc_bitmap(&res->sc); + if (err) + return err; + + res->sa.max = hw->sa_entries; + err = rvu_alloc_bitmap(&res->sa); + if (err) + return err; + + res->ctrlpktrule.max = MCS_MAX_CTRLPKT_RULES; + err = rvu_alloc_bitmap(&res->ctrlpktrule); + if (err) + return err; + + return 0; +} + +static int mcs_register_interrupts(struct mcs *mcs) +{ + int ret = 0; + + mcs->num_vec = pci_msix_vec_count(mcs->pdev); + + ret = pci_alloc_irq_vectors(mcs->pdev, mcs->num_vec, + mcs->num_vec, PCI_IRQ_MSIX); + if (ret < 0) { + dev_err(mcs->dev, "MCS Request for %d msix vector failed err:%d\n", + mcs->num_vec, ret); + return ret; + } + + ret = request_irq(pci_irq_vector(mcs->pdev, mcs->hw->ip_vec), + mcs_ip_intr_handler, 0, "MCS_IP", mcs); + if (ret) { + dev_err(mcs->dev, "MCS IP irq registration failed\n"); + goto exit; + } + + /* MCS enable IP interrupts */ + mcs_reg_write(mcs, MCSX_IP_INT_ENA_W1S, BIT_ULL(0)); + + /* Enable CPM Rx/Tx interrupts */ + mcs_reg_write(mcs, MCSX_TOP_SLAVE_INT_SUM_ENB, + MCS_CPM_RX_INT_ENA | MCS_CPM_TX_INT_ENA | + MCS_BBE_RX_INT_ENA | MCS_BBE_TX_INT_ENA | + MCS_PAB_RX_INT_ENA | MCS_PAB_TX_INT_ENA); + + mcs_reg_write(mcs, MCSX_CPM_TX_SLAVE_TX_INT_ENB, 0x7ULL); + mcs_reg_write(mcs, MCSX_CPM_RX_SLAVE_RX_INT_ENB, 0x7FULL); + + mcs_reg_write(mcs, MCSX_BBE_RX_SLAVE_BBE_INT_ENB, 0xFFULL); + mcs_reg_write(mcs, MCSX_BBE_TX_SLAVE_BBE_INT_ENB, 0xFFULL); + + mcs_reg_write(mcs, MCSX_PAB_RX_SLAVE_PAB_INT_ENB, 0xFFFFFULL); + mcs_reg_write(mcs, MCSX_PAB_TX_SLAVE_PAB_INT_ENB, 0xFFFFFULL); + + mcs->tx_sa_active = alloc_mem(mcs, mcs->hw->sc_entries); + if (!mcs->tx_sa_active) { + ret = -ENOMEM; + goto free_irq; + } + + return ret; + +free_irq: + free_irq(pci_irq_vector(mcs->pdev, mcs->hw->ip_vec), mcs); +exit: + pci_free_irq_vectors(mcs->pdev); + mcs->num_vec = 0; + return ret; +} + +int mcs_get_blkcnt(void) +{ + struct mcs *mcs; + int idmax = -ENODEV; + + /* Check MCS block is present in hardware */ + if (!pci_dev_present(mcs_id_table)) + return 0; + + list_for_each_entry(mcs, &mcs_list, mcs_list) + if (mcs->mcs_id > idmax) + idmax = mcs->mcs_id; + + if (idmax < 0) + return 0; + + return idmax + 1; +} + +struct mcs *mcs_get_pdata(int mcs_id) +{ + struct mcs *mcs_dev; + + list_for_each_entry(mcs_dev, &mcs_list, mcs_list) { + if (mcs_dev->mcs_id == mcs_id) + return mcs_dev; + } + return NULL; +} + +bool is_mcs_bypass(int mcs_id) +{ + struct mcs *mcs_dev; + + list_for_each_entry(mcs_dev, &mcs_list, mcs_list) { + if (mcs_dev->mcs_id == mcs_id) + return mcs_dev->bypass; + } + return true; +} + +void mcs_set_port_cfg(struct mcs *mcs, struct mcs_port_cfg_set_req *req) +{ + u64 val = 0; + + mcs_reg_write(mcs, MCSX_PAB_RX_SLAVE_PORT_CFGX(req->port_id), + req->port_mode & MCS_PORT_MODE_MASK); + + req->cstm_tag_rel_mode_sel &= 0x3; + + if (mcs->hw->mcs_blks > 1) { + req->fifo_skid &= MCS_PORT_FIFO_SKID_MASK; + val = (u32)req->fifo_skid << 0x10; + val |= req->fifo_skid; + mcs_reg_write(mcs, MCSX_PAB_RX_SLAVE_FIFO_SKID_CFGX(req->port_id), val); + mcs_reg_write(mcs, MCSX_PEX_TX_SLAVE_CUSTOM_TAG_REL_MODE_SEL(req->port_id), + req->cstm_tag_rel_mode_sel); + val = mcs_reg_read(mcs, MCSX_PEX_RX_SLAVE_PEX_CONFIGURATION); + + if (req->custom_hdr_enb) + val |= BIT_ULL(req->port_id); + else + val &= ~BIT_ULL(req->port_id); + + mcs_reg_write(mcs, MCSX_PEX_RX_SLAVE_PEX_CONFIGURATION, val); + } else { + val = mcs_reg_read(mcs, MCSX_PEX_TX_SLAVE_PORT_CONFIG(req->port_id)); + val |= (req->cstm_tag_rel_mode_sel << 2); + mcs_reg_write(mcs, MCSX_PEX_TX_SLAVE_PORT_CONFIG(req->port_id), val); + } +} + +void mcs_get_port_cfg(struct mcs *mcs, struct mcs_port_cfg_get_req *req, + struct mcs_port_cfg_get_rsp *rsp) +{ + u64 reg = 0; + + rsp->port_mode = mcs_reg_read(mcs, MCSX_PAB_RX_SLAVE_PORT_CFGX(req->port_id)) & + MCS_PORT_MODE_MASK; + + if (mcs->hw->mcs_blks > 1) { + reg = MCSX_PAB_RX_SLAVE_FIFO_SKID_CFGX(req->port_id); + rsp->fifo_skid = mcs_reg_read(mcs, reg) & MCS_PORT_FIFO_SKID_MASK; + reg = MCSX_PEX_TX_SLAVE_CUSTOM_TAG_REL_MODE_SEL(req->port_id); + rsp->cstm_tag_rel_mode_sel = mcs_reg_read(mcs, reg) & 0x3; + if (mcs_reg_read(mcs, MCSX_PEX_RX_SLAVE_PEX_CONFIGURATION) & BIT_ULL(req->port_id)) + rsp->custom_hdr_enb = 1; + } else { + reg = MCSX_PEX_TX_SLAVE_PORT_CONFIG(req->port_id); + rsp->cstm_tag_rel_mode_sel = mcs_reg_read(mcs, reg) >> 2; + } + + rsp->port_id = req->port_id; + rsp->mcs_id = req->mcs_id; +} + +void mcs_get_custom_tag_cfg(struct mcs *mcs, struct mcs_custom_tag_cfg_get_req *req, + struct mcs_custom_tag_cfg_get_rsp *rsp) +{ + u64 reg = 0, val = 0; + u8 idx; + + for (idx = 0; idx < MCS_MAX_CUSTOM_TAGS; idx++) { + if (mcs->hw->mcs_blks > 1) + reg = (req->dir == MCS_RX) ? MCSX_PEX_RX_SLAVE_CUSTOM_TAGX(idx) : + MCSX_PEX_TX_SLAVE_CUSTOM_TAGX(idx); + else + reg = (req->dir == MCS_RX) ? MCSX_PEX_RX_SLAVE_VLAN_CFGX(idx) : + MCSX_PEX_TX_SLAVE_VLAN_CFGX(idx); + + val = mcs_reg_read(mcs, reg); + if (mcs->hw->mcs_blks > 1) { + rsp->cstm_etype[idx] = val & GENMASK(15, 0); + rsp->cstm_indx[idx] = (val >> 0x16) & 0x3; + reg = (req->dir == MCS_RX) ? MCSX_PEX_RX_SLAVE_ETYPE_ENABLE : + MCSX_PEX_TX_SLAVE_ETYPE_ENABLE; + rsp->cstm_etype_en = mcs_reg_read(mcs, reg) & 0xFF; + } else { + rsp->cstm_etype[idx] = (val >> 0x1) & GENMASK(15, 0); + rsp->cstm_indx[idx] = (val >> 0x11) & 0x3; + rsp->cstm_etype_en |= (val & 0x1) << idx; + } + } + + rsp->mcs_id = req->mcs_id; + rsp->dir = req->dir; +} + +void mcs_reset_port(struct mcs *mcs, u8 port_id, u8 reset) +{ + u64 reg = MCSX_MCS_TOP_SLAVE_PORT_RESET(port_id); + + mcs_reg_write(mcs, reg, reset & 0x1); +} + +/* Set lmac to bypass/operational mode */ +void mcs_set_lmac_mode(struct mcs *mcs, int lmac_id, u8 mode) +{ + u64 reg; + int id = lmac_id * 2; + + reg = MCSX_MCS_TOP_SLAVE_CHANNEL_CFG(id); + mcs_reg_write(mcs, reg, (u64)mode); + reg = MCSX_MCS_TOP_SLAVE_CHANNEL_CFG((id + 1)); + mcs_reg_write(mcs, reg, (u64)mode); +} + +void mcs_pn_threshold_set(struct mcs *mcs, struct mcs_set_pn_threshold *pn) +{ + u64 reg; + + if (pn->dir == MCS_RX) + reg = pn->xpn ? MCSX_CPM_RX_SLAVE_XPN_THRESHOLD : MCSX_CPM_RX_SLAVE_PN_THRESHOLD; + else + reg = pn->xpn ? MCSX_CPM_TX_SLAVE_XPN_THRESHOLD : MCSX_CPM_TX_SLAVE_PN_THRESHOLD; + + mcs_reg_write(mcs, reg, pn->threshold); +} + +void cn10kb_mcs_parser_cfg(struct mcs *mcs) +{ + u64 reg, val; + + /* VLAN CTag */ + val = BIT_ULL(0) | (0x8100ull & 0xFFFF) << 1 | BIT_ULL(17); + /* RX */ + reg = MCSX_PEX_RX_SLAVE_VLAN_CFGX(0); + mcs_reg_write(mcs, reg, val); + + /* TX */ + reg = MCSX_PEX_TX_SLAVE_VLAN_CFGX(0); + mcs_reg_write(mcs, reg, val); + + /* VLAN STag */ + val = BIT_ULL(0) | (0x88a8ull & 0xFFFF) << 1 | BIT_ULL(18); + /* RX */ + reg = MCSX_PEX_RX_SLAVE_VLAN_CFGX(1); + mcs_reg_write(mcs, reg, val); + + /* TX */ + reg = MCSX_PEX_TX_SLAVE_VLAN_CFGX(1); + mcs_reg_write(mcs, reg, val); +} + +static void mcs_lmac_init(struct mcs *mcs, int lmac_id) +{ + u64 reg; + + /* Port mode 25GB */ + reg = MCSX_PAB_RX_SLAVE_PORT_CFGX(lmac_id); + mcs_reg_write(mcs, reg, 0); + + if (mcs->hw->mcs_blks > 1) { + reg = MCSX_PAB_RX_SLAVE_FIFO_SKID_CFGX(lmac_id); + mcs_reg_write(mcs, reg, 0xe000e); + return; + } + + reg = MCSX_PAB_TX_SLAVE_PORT_CFGX(lmac_id); + mcs_reg_write(mcs, reg, 0); +} + +int mcs_set_lmac_channels(int mcs_id, u16 base) +{ + struct mcs *mcs; + int lmac; + u64 cfg; + + mcs = mcs_get_pdata(mcs_id); + if (!mcs) + return -ENODEV; + for (lmac = 0; lmac < mcs->hw->lmac_cnt; lmac++) { + cfg = mcs_reg_read(mcs, MCSX_LINK_LMACX_CFG(lmac)); + cfg &= ~(MCSX_LINK_LMAC_BASE_MASK | MCSX_LINK_LMAC_RANGE_MASK); + cfg |= FIELD_PREP(MCSX_LINK_LMAC_RANGE_MASK, ilog2(16)); + cfg |= FIELD_PREP(MCSX_LINK_LMAC_BASE_MASK, base); + mcs_reg_write(mcs, MCSX_LINK_LMACX_CFG(lmac), cfg); + base += 16; + } + return 0; +} + +static int mcs_x2p_calibration(struct mcs *mcs) +{ + unsigned long timeout = jiffies + usecs_to_jiffies(20000); + int i, err = 0; + u64 val; + + /* set X2P calibration */ + val = mcs_reg_read(mcs, MCSX_MIL_GLOBAL); + val |= BIT_ULL(5); + mcs_reg_write(mcs, MCSX_MIL_GLOBAL, val); + + /* Wait for calibration to complete */ + while (!(mcs_reg_read(mcs, MCSX_MIL_RX_GBL_STATUS) & BIT_ULL(0))) { + if (time_before(jiffies, timeout)) { + usleep_range(80, 100); + continue; + } else { + err = -EBUSY; + dev_err(mcs->dev, "MCS X2P calibration failed..ignoring\n"); + return err; + } + } + + val = mcs_reg_read(mcs, MCSX_MIL_RX_GBL_STATUS); + for (i = 0; i < mcs->hw->mcs_x2p_intf; i++) { + if (val & BIT_ULL(1 + i)) + continue; + err = -EBUSY; + dev_err(mcs->dev, "MCS:%d didn't respond to X2P calibration\n", i); + } + /* Clear X2P calibrate */ + mcs_reg_write(mcs, MCSX_MIL_GLOBAL, mcs_reg_read(mcs, MCSX_MIL_GLOBAL) & ~BIT_ULL(5)); + + return err; +} + +static void mcs_set_external_bypass(struct mcs *mcs, bool bypass) +{ + u64 val; + + /* Set MCS to external bypass */ + val = mcs_reg_read(mcs, MCSX_MIL_GLOBAL); + if (bypass) + val |= BIT_ULL(6); + else + val &= ~BIT_ULL(6); + mcs_reg_write(mcs, MCSX_MIL_GLOBAL, val); + mcs->bypass = bypass; +} + +static void mcs_global_cfg(struct mcs *mcs) +{ + /* Disable external bypass */ + mcs_set_external_bypass(mcs, false); + + /* Reset TX/RX stats memory */ + mcs_reg_write(mcs, MCSX_CSE_RX_SLAVE_STATS_CLEAR, 0x1F); + mcs_reg_write(mcs, MCSX_CSE_TX_SLAVE_STATS_CLEAR, 0x1F); + + /* Set MCS to perform standard IEEE802.1AE macsec processing */ + if (mcs->hw->mcs_blks == 1) { + mcs_reg_write(mcs, MCSX_IP_MODE, BIT_ULL(3)); + return; + } + + mcs_reg_write(mcs, MCSX_BBE_RX_SLAVE_CAL_ENTRY, 0xe4); + mcs_reg_write(mcs, MCSX_BBE_RX_SLAVE_CAL_LEN, 4); +} + +void cn10kb_mcs_set_hw_capabilities(struct mcs *mcs) +{ + struct hwinfo *hw = mcs->hw; + + hw->tcam_entries = 128; /* TCAM entries */ + hw->secy_entries = 128; /* SecY entries */ + hw->sc_entries = 128; /* SC CAM entries */ + hw->sa_entries = 256; /* SA entries */ + hw->lmac_cnt = 20; /* lmacs/ports per mcs block */ + hw->mcs_x2p_intf = 5; /* x2p clabration intf */ + hw->mcs_blks = 1; /* MCS blocks */ + hw->ip_vec = MCS_CN10KB_INT_VEC_IP; /* IP vector */ +} + +static struct mcs_ops cn10kb_mcs_ops = { + .mcs_set_hw_capabilities = cn10kb_mcs_set_hw_capabilities, + .mcs_parser_cfg = cn10kb_mcs_parser_cfg, + .mcs_tx_sa_mem_map_write = cn10kb_mcs_tx_sa_mem_map_write, + .mcs_rx_sa_mem_map_write = cn10kb_mcs_rx_sa_mem_map_write, + .mcs_flowid_secy_map = cn10kb_mcs_flowid_secy_map, + .mcs_bbe_intr_handler = cn10kb_mcs_bbe_intr_handler, + .mcs_pab_intr_handler = cn10kb_mcs_pab_intr_handler, +}; + +static int mcs_probe(struct pci_dev *pdev, const struct pci_device_id *id) +{ + struct device *dev = &pdev->dev; + int lmac, err = 0; + struct mcs *mcs; + + mcs = devm_kzalloc(dev, sizeof(*mcs), GFP_KERNEL); + if (!mcs) + return -ENOMEM; + + mcs->hw = devm_kzalloc(dev, sizeof(struct hwinfo), GFP_KERNEL); + if (!mcs->hw) + return -ENOMEM; + + err = pci_enable_device(pdev); + if (err) { + dev_err(dev, "Failed to enable PCI device\n"); + pci_set_drvdata(pdev, NULL); + return err; + } + + err = pci_request_regions(pdev, DRV_NAME); + if (err) { + dev_err(dev, "PCI request regions failed 0x%x\n", err); + goto exit; + } + + mcs->reg_base = pcim_iomap(pdev, PCI_CFG_REG_BAR_NUM, 0); + if (!mcs->reg_base) { + dev_err(dev, "mcs: Cannot map CSR memory space, aborting\n"); + err = -ENOMEM; + goto exit; + } + + pci_set_drvdata(pdev, mcs); + mcs->pdev = pdev; + mcs->dev = &pdev->dev; + + if (pdev->subsystem_device == PCI_SUBSYS_DEVID_CN10K_B) + mcs->mcs_ops = &cn10kb_mcs_ops; + else + mcs->mcs_ops = cnf10kb_get_mac_ops(); + + /* Set hardware capabilities */ + mcs->mcs_ops->mcs_set_hw_capabilities(mcs); + + mcs_global_cfg(mcs); + + /* Perform X2P clibration */ + err = mcs_x2p_calibration(mcs); + if (err) + goto err_x2p; + + mcs->mcs_id = (pci_resource_start(pdev, PCI_CFG_REG_BAR_NUM) >> 24) + & MCS_ID_MASK; + + /* Set mcs tx side resources */ + err = mcs_alloc_struct_mem(mcs, &mcs->tx); + if (err) + goto err_x2p; + + /* Set mcs rx side resources */ + err = mcs_alloc_struct_mem(mcs, &mcs->rx); + if (err) + goto err_x2p; + + /* per port config */ + for (lmac = 0; lmac < mcs->hw->lmac_cnt; lmac++) + mcs_lmac_init(mcs, lmac); + + /* Parser configuration */ + mcs->mcs_ops->mcs_parser_cfg(mcs); + + err = mcs_register_interrupts(mcs); + if (err) + goto exit; + + list_add(&mcs->mcs_list, &mcs_list); + mutex_init(&mcs->stats_lock); + + return 0; + +err_x2p: + /* Enable external bypass */ + mcs_set_external_bypass(mcs, true); +exit: + pci_release_regions(pdev); + pci_disable_device(pdev); + pci_set_drvdata(pdev, NULL); + return err; +} + +static void mcs_remove(struct pci_dev *pdev) +{ + struct mcs *mcs = pci_get_drvdata(pdev); + + /* Set MCS to external bypass */ + mcs_set_external_bypass(mcs, true); + free_irq(pci_irq_vector(pdev, mcs->hw->ip_vec), mcs); + pci_free_irq_vectors(pdev); + pci_release_regions(pdev); + pci_disable_device(pdev); + pci_set_drvdata(pdev, NULL); +} + +struct pci_driver mcs_driver = { + .name = DRV_NAME, + .id_table = mcs_id_table, + .probe = mcs_probe, + .remove = mcs_remove, +}; diff --git a/drivers/net/ethernet/marvell/octeontx2/af/mcs.h b/drivers/net/ethernet/marvell/octeontx2/af/mcs.h new file mode 100644 index 000000000..f927cc61d --- /dev/null +++ b/drivers/net/ethernet/marvell/octeontx2/af/mcs.h @@ -0,0 +1,246 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* Marvell CN10K MCS driver + * + * Copyright (C) 2022 Marvell. + */ + +#ifndef MCS_H +#define MCS_H + +#include <linux/bits.h> +#include "rvu.h" + +#define PCI_DEVID_CN10K_MCS 0xA096 + +#define MCSX_LINK_LMAC_RANGE_MASK GENMASK_ULL(19, 16) +#define MCSX_LINK_LMAC_BASE_MASK GENMASK_ULL(11, 0) + +#define MCS_ID_MASK 0x7 +#define MCS_MAX_PFS 128 + +#define MCS_PORT_MODE_MASK 0x3 +#define MCS_PORT_FIFO_SKID_MASK 0x3F +#define MCS_MAX_CUSTOM_TAGS 0x8 + +#define MCS_CTRLPKT_ETYPE_RULE_MAX 8 +#define MCS_CTRLPKT_DA_RULE_MAX 8 +#define MCS_CTRLPKT_DA_RANGE_RULE_MAX 4 +#define MCS_CTRLPKT_COMBO_RULE_MAX 4 +#define MCS_CTRLPKT_MAC_RULE_MAX 1 + +#define MCS_MAX_CTRLPKT_RULES (MCS_CTRLPKT_ETYPE_RULE_MAX + \ + MCS_CTRLPKT_DA_RULE_MAX + \ + MCS_CTRLPKT_DA_RANGE_RULE_MAX + \ + MCS_CTRLPKT_COMBO_RULE_MAX + \ + MCS_CTRLPKT_MAC_RULE_MAX) + +#define MCS_CTRLPKT_ETYPE_RULE_OFFSET 0 +#define MCS_CTRLPKT_DA_RULE_OFFSET 8 +#define MCS_CTRLPKT_DA_RANGE_RULE_OFFSET 16 +#define MCS_CTRLPKT_COMBO_RULE_OFFSET 20 +#define MCS_CTRLPKT_MAC_EN_RULE_OFFSET 24 + +/* Reserved resources for default bypass entry */ +#define MCS_RSRC_RSVD_CNT 1 + +/* MCS Interrupt Vector */ +#define MCS_CNF10KB_INT_VEC_IP 0x13 +#define MCS_CN10KB_INT_VEC_IP 0x53 + +#define MCS_MAX_BBE_INT 8ULL +#define MCS_BBE_INT_MASK 0xFFULL + +#define MCS_MAX_PAB_INT 8ULL +#define MCS_PAB_INT_MASK 0xFULL + +#define MCS_BBE_RX_INT_ENA BIT_ULL(0) +#define MCS_BBE_TX_INT_ENA BIT_ULL(1) +#define MCS_CPM_RX_INT_ENA BIT_ULL(2) +#define MCS_CPM_TX_INT_ENA BIT_ULL(3) +#define MCS_PAB_RX_INT_ENA BIT_ULL(4) +#define MCS_PAB_TX_INT_ENA BIT_ULL(5) + +#define MCS_CPM_TX_INT_PACKET_XPN_EQ0 BIT_ULL(0) +#define MCS_CPM_TX_INT_PN_THRESH_REACHED BIT_ULL(1) +#define MCS_CPM_TX_INT_SA_NOT_VALID BIT_ULL(2) + +#define MCS_CPM_RX_INT_SECTAG_V_EQ1 BIT_ULL(0) +#define MCS_CPM_RX_INT_SECTAG_E_EQ0_C_EQ1 BIT_ULL(1) +#define MCS_CPM_RX_INT_SL_GTE48 BIT_ULL(2) +#define MCS_CPM_RX_INT_ES_EQ1_SC_EQ1 BIT_ULL(3) +#define MCS_CPM_RX_INT_SC_EQ1_SCB_EQ1 BIT_ULL(4) +#define MCS_CPM_RX_INT_PACKET_XPN_EQ0 BIT_ULL(5) +#define MCS_CPM_RX_INT_PN_THRESH_REACHED BIT_ULL(6) + +#define MCS_CPM_RX_INT_ALL (MCS_CPM_RX_INT_SECTAG_V_EQ1 | \ + MCS_CPM_RX_INT_SECTAG_E_EQ0_C_EQ1 | \ + MCS_CPM_RX_INT_SL_GTE48 | \ + MCS_CPM_RX_INT_ES_EQ1_SC_EQ1 | \ + MCS_CPM_RX_INT_SC_EQ1_SCB_EQ1 | \ + MCS_CPM_RX_INT_PACKET_XPN_EQ0 | \ + MCS_CPM_RX_INT_PN_THRESH_REACHED) + +struct mcs_pfvf { + u64 intr_mask; /* Enabled Interrupt mask */ +}; + +struct mcs_intr_event { + u16 pcifunc; + u64 intr_mask; + u64 sa_id; + u8 mcs_id; + u8 lmac_id; +}; + +struct mcs_intrq_entry { + struct list_head node; + struct mcs_intr_event intr_event; +}; + +struct secy_mem_map { + u8 flow_id; + u8 secy; + u8 ctrl_pkt; + u8 sc; + u64 sci; +}; + +struct mcs_rsrc_map { + u16 *flowid2pf_map; + u16 *secy2pf_map; + u16 *sc2pf_map; + u16 *sa2pf_map; + u16 *flowid2secy_map; /* bitmap flowid mapped to secy*/ + u16 *ctrlpktrule2pf_map; + struct rsrc_bmap flow_ids; + struct rsrc_bmap secy; + struct rsrc_bmap sc; + struct rsrc_bmap sa; + struct rsrc_bmap ctrlpktrule; +}; + +struct hwinfo { + u8 tcam_entries; + u8 secy_entries; + u8 sc_entries; + u16 sa_entries; + u8 mcs_x2p_intf; + u8 lmac_cnt; + u8 mcs_blks; + unsigned long lmac_bmap; /* bitmap of enabled mcs lmac */ + u16 ip_vec; +}; + +struct mcs { + void __iomem *reg_base; + struct pci_dev *pdev; + struct device *dev; + struct hwinfo *hw; + struct mcs_rsrc_map tx; + struct mcs_rsrc_map rx; + u16 pf_map[MCS_MAX_PFS]; /* List of PCIFUNC mapped to MCS */ + u8 mcs_id; + struct mcs_ops *mcs_ops; + struct list_head mcs_list; + /* Lock for mcs stats */ + struct mutex stats_lock; + struct mcs_pfvf *pf; + struct mcs_pfvf *vf; + u16 num_vec; + void *rvu; + u16 *tx_sa_active; + bool bypass; +}; + +struct mcs_ops { + void (*mcs_set_hw_capabilities)(struct mcs *mcs); + void (*mcs_parser_cfg)(struct mcs *mcs); + void (*mcs_tx_sa_mem_map_write)(struct mcs *mcs, struct mcs_tx_sc_sa_map *map); + void (*mcs_rx_sa_mem_map_write)(struct mcs *mcs, struct mcs_rx_sc_sa_map *map); + void (*mcs_flowid_secy_map)(struct mcs *mcs, struct secy_mem_map *map, int dir); + void (*mcs_bbe_intr_handler)(struct mcs *mcs, u64 intr, enum mcs_direction dir); + void (*mcs_pab_intr_handler)(struct mcs *mcs, u64 intr, enum mcs_direction dir); +}; + +extern struct pci_driver mcs_driver; + +static inline void mcs_reg_write(struct mcs *mcs, u64 offset, u64 val) +{ + writeq(val, mcs->reg_base + offset); +} + +static inline u64 mcs_reg_read(struct mcs *mcs, u64 offset) +{ + return readq(mcs->reg_base + offset); +} + +/* MCS APIs */ +struct mcs *mcs_get_pdata(int mcs_id); +int mcs_get_blkcnt(void); +int mcs_set_lmac_channels(int mcs_id, u16 base); +int mcs_alloc_rsrc(struct rsrc_bmap *rsrc, u16 *pf_map, u16 pcifunc); +int mcs_free_rsrc(struct rsrc_bmap *rsrc, u16 *pf_map, int rsrc_id, u16 pcifunc); +int mcs_alloc_all_rsrc(struct mcs *mcs, u8 *flowid, u8 *secy_id, + u8 *sc_id, u8 *sa1_id, u8 *sa2_id, u16 pcifunc, int dir); +int mcs_free_all_rsrc(struct mcs *mcs, int dir, u16 pcifunc); +void mcs_clear_secy_plcy(struct mcs *mcs, int secy_id, int dir); +void mcs_ena_dis_flowid_entry(struct mcs *mcs, int id, int dir, int ena); +void mcs_ena_dis_sc_cam_entry(struct mcs *mcs, int id, int ena); +void mcs_flowid_entry_write(struct mcs *mcs, u64 *data, u64 *mask, int id, int dir); +void mcs_secy_plcy_write(struct mcs *mcs, u64 plcy, int id, int dir); +void mcs_rx_sc_cam_write(struct mcs *mcs, u64 sci, u64 secy, int sc_id); +void mcs_sa_plcy_write(struct mcs *mcs, u64 *plcy, int sa, int dir); +void mcs_map_sc_to_sa(struct mcs *mcs, u64 *sa_map, int sc, int dir); +void mcs_pn_table_write(struct mcs *mcs, u8 pn_id, u64 next_pn, u8 dir); +void mcs_tx_sa_mem_map_write(struct mcs *mcs, struct mcs_tx_sc_sa_map *map); +void mcs_flowid_secy_map(struct mcs *mcs, struct secy_mem_map *map, int dir); +void mcs_rx_sa_mem_map_write(struct mcs *mcs, struct mcs_rx_sc_sa_map *map); +void mcs_pn_threshold_set(struct mcs *mcs, struct mcs_set_pn_threshold *pn); +int mcs_install_flowid_bypass_entry(struct mcs *mcs); +void mcs_set_lmac_mode(struct mcs *mcs, int lmac_id, u8 mode); +void mcs_reset_port(struct mcs *mcs, u8 port_id, u8 reset); +void mcs_set_port_cfg(struct mcs *mcs, struct mcs_port_cfg_set_req *req); +void mcs_get_port_cfg(struct mcs *mcs, struct mcs_port_cfg_get_req *req, + struct mcs_port_cfg_get_rsp *rsp); +void mcs_get_custom_tag_cfg(struct mcs *mcs, struct mcs_custom_tag_cfg_get_req *req, + struct mcs_custom_tag_cfg_get_rsp *rsp); +int mcs_alloc_ctrlpktrule(struct rsrc_bmap *rsrc, u16 *pf_map, u16 offset, u16 pcifunc); +int mcs_free_ctrlpktrule(struct mcs *mcs, struct mcs_free_ctrl_pkt_rule_req *req); +int mcs_ctrlpktrule_write(struct mcs *mcs, struct mcs_ctrl_pkt_rule_write_req *req); +bool is_mcs_bypass(int mcs_id); + +/* CN10K-B APIs */ +void cn10kb_mcs_set_hw_capabilities(struct mcs *mcs); +void cn10kb_mcs_tx_sa_mem_map_write(struct mcs *mcs, struct mcs_tx_sc_sa_map *map); +void cn10kb_mcs_flowid_secy_map(struct mcs *mcs, struct secy_mem_map *map, int dir); +void cn10kb_mcs_rx_sa_mem_map_write(struct mcs *mcs, struct mcs_rx_sc_sa_map *map); +void cn10kb_mcs_parser_cfg(struct mcs *mcs); +void cn10kb_mcs_pab_intr_handler(struct mcs *mcs, u64 intr, enum mcs_direction dir); +void cn10kb_mcs_bbe_intr_handler(struct mcs *mcs, u64 intr, enum mcs_direction dir); + +/* CNF10K-B APIs */ +struct mcs_ops *cnf10kb_get_mac_ops(void); +void cnf10kb_mcs_set_hw_capabilities(struct mcs *mcs); +void cnf10kb_mcs_tx_sa_mem_map_write(struct mcs *mcs, struct mcs_tx_sc_sa_map *map); +void cnf10kb_mcs_flowid_secy_map(struct mcs *mcs, struct secy_mem_map *map, int dir); +void cnf10kb_mcs_rx_sa_mem_map_write(struct mcs *mcs, struct mcs_rx_sc_sa_map *map); +void cnf10kb_mcs_parser_cfg(struct mcs *mcs); +void cnf10kb_mcs_tx_pn_thresh_reached_handler(struct mcs *mcs); +void cnf10kb_mcs_tx_pn_wrapped_handler(struct mcs *mcs); +void cnf10kb_mcs_bbe_intr_handler(struct mcs *mcs, u64 intr, enum mcs_direction dir); +void cnf10kb_mcs_pab_intr_handler(struct mcs *mcs, u64 intr, enum mcs_direction dir); + +/* Stats APIs */ +void mcs_get_sc_stats(struct mcs *mcs, struct mcs_sc_stats *stats, int id, int dir); +void mcs_get_sa_stats(struct mcs *mcs, struct mcs_sa_stats *stats, int id, int dir); +void mcs_get_port_stats(struct mcs *mcs, struct mcs_port_stats *stats, int id, int dir); +void mcs_get_flowid_stats(struct mcs *mcs, struct mcs_flowid_stats *stats, int id, int dir); +void mcs_get_rx_secy_stats(struct mcs *mcs, struct mcs_secy_stats *stats, int id); +void mcs_get_tx_secy_stats(struct mcs *mcs, struct mcs_secy_stats *stats, int id); +void mcs_clear_stats(struct mcs *mcs, u8 type, u8 id, int dir); +int mcs_clear_all_stats(struct mcs *mcs, u16 pcifunc, int dir); +int mcs_set_force_clk_en(struct mcs *mcs, bool set); + +int mcs_add_intr_wq_entry(struct mcs *mcs, struct mcs_intr_event *event); + +#endif /* MCS_H */ diff --git a/drivers/net/ethernet/marvell/octeontx2/af/mcs_cnf10kb.c b/drivers/net/ethernet/marvell/octeontx2/af/mcs_cnf10kb.c new file mode 100644 index 000000000..9f9b904ab --- /dev/null +++ b/drivers/net/ethernet/marvell/octeontx2/af/mcs_cnf10kb.c @@ -0,0 +1,277 @@ +// SPDX-License-Identifier: GPL-2.0 +/* Marvell MCS driver + * + * Copyright (C) 2022 Marvell. + */ + +#include "mcs.h" +#include "mcs_reg.h" + +static struct mcs_ops cnf10kb_mcs_ops = { + .mcs_set_hw_capabilities = cnf10kb_mcs_set_hw_capabilities, + .mcs_parser_cfg = cnf10kb_mcs_parser_cfg, + .mcs_tx_sa_mem_map_write = cnf10kb_mcs_tx_sa_mem_map_write, + .mcs_rx_sa_mem_map_write = cnf10kb_mcs_rx_sa_mem_map_write, + .mcs_flowid_secy_map = cnf10kb_mcs_flowid_secy_map, + .mcs_bbe_intr_handler = cnf10kb_mcs_bbe_intr_handler, + .mcs_pab_intr_handler = cnf10kb_mcs_pab_intr_handler, +}; + +struct mcs_ops *cnf10kb_get_mac_ops(void) +{ + return &cnf10kb_mcs_ops; +} + +void cnf10kb_mcs_set_hw_capabilities(struct mcs *mcs) +{ + struct hwinfo *hw = mcs->hw; + + hw->tcam_entries = 64; /* TCAM entries */ + hw->secy_entries = 64; /* SecY entries */ + hw->sc_entries = 64; /* SC CAM entries */ + hw->sa_entries = 128; /* SA entries */ + hw->lmac_cnt = 4; /* lmacs/ports per mcs block */ + hw->mcs_x2p_intf = 1; /* x2p clabration intf */ + hw->mcs_blks = 7; /* MCS blocks */ + hw->ip_vec = MCS_CNF10KB_INT_VEC_IP; /* IP vector */ +} + +void cnf10kb_mcs_parser_cfg(struct mcs *mcs) +{ + u64 reg, val; + + /* VLAN Ctag */ + val = (0x8100ull & 0xFFFF) | BIT_ULL(20) | BIT_ULL(22); + + reg = MCSX_PEX_RX_SLAVE_CUSTOM_TAGX(0); + mcs_reg_write(mcs, reg, val); + + reg = MCSX_PEX_TX_SLAVE_CUSTOM_TAGX(0); + mcs_reg_write(mcs, reg, val); + + /* VLAN STag */ + val = (0x88a8ull & 0xFFFF) | BIT_ULL(20) | BIT_ULL(23); + + /* RX */ + reg = MCSX_PEX_RX_SLAVE_CUSTOM_TAGX(1); + mcs_reg_write(mcs, reg, val); + + /* TX */ + reg = MCSX_PEX_TX_SLAVE_CUSTOM_TAGX(1); + mcs_reg_write(mcs, reg, val); + + /* Enable custom tage 0 and 1 and sectag */ + val = BIT_ULL(0) | BIT_ULL(1) | BIT_ULL(12); + + reg = MCSX_PEX_RX_SLAVE_ETYPE_ENABLE; + mcs_reg_write(mcs, reg, val); + + reg = MCSX_PEX_TX_SLAVE_ETYPE_ENABLE; + mcs_reg_write(mcs, reg, val); +} + +void cnf10kb_mcs_flowid_secy_map(struct mcs *mcs, struct secy_mem_map *map, int dir) +{ + u64 reg, val; + + val = (map->secy & 0x3F) | (map->ctrl_pkt & 0x1) << 6; + if (dir == MCS_RX) { + reg = MCSX_CPM_RX_SLAVE_SECY_MAP_MEMX(map->flow_id); + } else { + reg = MCSX_CPM_TX_SLAVE_SECY_MAP_MEM_0X(map->flow_id); + mcs_reg_write(mcs, reg, map->sci); + val |= (map->sc & 0x3F) << 7; + reg = MCSX_CPM_TX_SLAVE_SECY_MAP_MEM_1X(map->flow_id); + } + + mcs_reg_write(mcs, reg, val); +} + +void cnf10kb_mcs_tx_sa_mem_map_write(struct mcs *mcs, struct mcs_tx_sc_sa_map *map) +{ + u64 reg, val; + + val = (map->sa_index0 & 0x7F) | (map->sa_index1 & 0x7F) << 7; + + reg = MCSX_CPM_TX_SLAVE_SA_MAP_MEM_0X(map->sc_id); + mcs_reg_write(mcs, reg, val); + + reg = MCSX_CPM_TX_SLAVE_AUTO_REKEY_ENABLE_0; + val = mcs_reg_read(mcs, reg); + + if (map->rekey_ena) + val |= BIT_ULL(map->sc_id); + else + val &= ~BIT_ULL(map->sc_id); + + mcs_reg_write(mcs, reg, val); + + mcs_reg_write(mcs, MCSX_CPM_TX_SLAVE_SA_INDEX0_VLDX(map->sc_id), map->sa_index0_vld); + mcs_reg_write(mcs, MCSX_CPM_TX_SLAVE_SA_INDEX1_VLDX(map->sc_id), map->sa_index1_vld); + + mcs_reg_write(mcs, MCSX_CPM_TX_SLAVE_TX_SA_ACTIVEX(map->sc_id), map->tx_sa_active); +} + +void cnf10kb_mcs_rx_sa_mem_map_write(struct mcs *mcs, struct mcs_rx_sc_sa_map *map) +{ + u64 val, reg; + + val = (map->sa_index & 0x7F) | (map->sa_in_use << 7); + + reg = MCSX_CPM_RX_SLAVE_SA_MAP_MEMX((4 * map->sc_id) + map->an); + mcs_reg_write(mcs, reg, val); +} + +int mcs_set_force_clk_en(struct mcs *mcs, bool set) +{ + unsigned long timeout = jiffies + usecs_to_jiffies(2000); + u64 val; + + val = mcs_reg_read(mcs, MCSX_MIL_GLOBAL); + + if (set) { + val |= BIT_ULL(4); + mcs_reg_write(mcs, MCSX_MIL_GLOBAL, val); + + /* Poll till mcsx_mil_ip_gbl_status.mcs_ip_stats_ready value is 1 */ + while (!(mcs_reg_read(mcs, MCSX_MIL_IP_GBL_STATUS) & BIT_ULL(0))) { + if (time_after(jiffies, timeout)) { + dev_err(mcs->dev, "MCS set force clk enable failed\n"); + break; + } + } + } else { + val &= ~BIT_ULL(4); + mcs_reg_write(mcs, MCSX_MIL_GLOBAL, val); + } + + return 0; +} + +/* TX SA interrupt is raised only if autorekey is enabled. + * MCS_CPM_TX_SLAVE_SA_MAP_MEM_0X[sc].tx_sa_active bit gets toggled if + * one of two SAs mapped to SC gets expired. If tx_sa_active=0 implies + * SA in SA_index1 got expired else SA in SA_index0 got expired. + */ +void cnf10kb_mcs_tx_pn_thresh_reached_handler(struct mcs *mcs) +{ + struct mcs_intr_event event; + struct rsrc_bmap *sc_bmap; + unsigned long rekey_ena; + u64 val, sa_status; + int sc; + + sc_bmap = &mcs->tx.sc; + + event.mcs_id = mcs->mcs_id; + event.intr_mask = MCS_CPM_TX_PN_THRESH_REACHED_INT; + + rekey_ena = mcs_reg_read(mcs, MCSX_CPM_TX_SLAVE_AUTO_REKEY_ENABLE_0); + + for_each_set_bit(sc, sc_bmap->bmap, mcs->hw->sc_entries) { + /* Auto rekey is enable */ + if (!test_bit(sc, &rekey_ena)) + continue; + sa_status = mcs_reg_read(mcs, MCSX_CPM_TX_SLAVE_TX_SA_ACTIVEX(sc)); + /* Check if tx_sa_active status had changed */ + if (sa_status == mcs->tx_sa_active[sc]) + continue; + + /* SA_index0 is expired */ + val = mcs_reg_read(mcs, MCSX_CPM_TX_SLAVE_SA_MAP_MEM_0X(sc)); + if (sa_status) + event.sa_id = val & 0x7F; + else + event.sa_id = (val >> 7) & 0x7F; + + event.pcifunc = mcs->tx.sa2pf_map[event.sa_id]; + mcs_add_intr_wq_entry(mcs, &event); + } +} + +void cnf10kb_mcs_tx_pn_wrapped_handler(struct mcs *mcs) +{ + struct mcs_intr_event event = { 0 }; + struct rsrc_bmap *sc_bmap; + u64 val; + int sc; + + sc_bmap = &mcs->tx.sc; + + event.mcs_id = mcs->mcs_id; + event.intr_mask = MCS_CPM_TX_PACKET_XPN_EQ0_INT; + + for_each_set_bit(sc, sc_bmap->bmap, mcs->hw->sc_entries) { + val = mcs_reg_read(mcs, MCSX_CPM_TX_SLAVE_SA_MAP_MEM_0X(sc)); + + if (mcs->tx_sa_active[sc]) + /* SA_index1 was used and got expired */ + event.sa_id = (val >> 7) & 0x7F; + else + /* SA_index0 was used and got expired */ + event.sa_id = val & 0x7F; + + event.pcifunc = mcs->tx.sa2pf_map[event.sa_id]; + mcs_add_intr_wq_entry(mcs, &event); + } +} + +void cnf10kb_mcs_bbe_intr_handler(struct mcs *mcs, u64 intr, + enum mcs_direction dir) +{ + struct mcs_intr_event event = { 0 }; + int i; + + if (!(intr & MCS_BBE_INT_MASK)) + return; + + event.mcs_id = mcs->mcs_id; + event.pcifunc = mcs->pf_map[0]; + + for (i = 0; i < MCS_MAX_BBE_INT; i++) { + if (!(intr & BIT_ULL(i))) + continue; + + /* Lower nibble denotes data fifo overflow interrupts and + * upper nibble indicates policy fifo overflow interrupts. + */ + if (intr & 0xFULL) + event.intr_mask = (dir == MCS_RX) ? + MCS_BBE_RX_DFIFO_OVERFLOW_INT : + MCS_BBE_TX_DFIFO_OVERFLOW_INT; + else + event.intr_mask = (dir == MCS_RX) ? + MCS_BBE_RX_PLFIFO_OVERFLOW_INT : + MCS_BBE_TX_PLFIFO_OVERFLOW_INT; + + /* Notify the lmac_id info which ran into BBE fatal error */ + event.lmac_id = i & 0x3ULL; + mcs_add_intr_wq_entry(mcs, &event); + } +} + +void cnf10kb_mcs_pab_intr_handler(struct mcs *mcs, u64 intr, + enum mcs_direction dir) +{ + struct mcs_intr_event event = { 0 }; + int i; + + if (!(intr & MCS_PAB_INT_MASK)) + return; + + event.mcs_id = mcs->mcs_id; + event.pcifunc = mcs->pf_map[0]; + + for (i = 0; i < MCS_MAX_PAB_INT; i++) { + if (!(intr & BIT_ULL(i))) + continue; + + event.intr_mask = (dir == MCS_RX) ? + MCS_PAB_RX_CHAN_OVERFLOW_INT : + MCS_PAB_TX_CHAN_OVERFLOW_INT; + + /* Notify the lmac_id info which ran into PAB fatal error */ + event.lmac_id = i; + mcs_add_intr_wq_entry(mcs, &event); + } +} diff --git a/drivers/net/ethernet/marvell/octeontx2/af/mcs_reg.h b/drivers/net/ethernet/marvell/octeontx2/af/mcs_reg.h new file mode 100644 index 000000000..f4c6de890 --- /dev/null +++ b/drivers/net/ethernet/marvell/octeontx2/af/mcs_reg.h @@ -0,0 +1,1129 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* Marvell MCS driver + * + * Copyright (C) 2022 Marvell. + */ + +#ifndef MCS_REG_H +#define MCS_REG_H + +#include <linux/bits.h> + +/* Registers */ +#define MCSX_IP_MODE 0x900c8ull +#define MCSX_MCS_TOP_SLAVE_PORT_RESET(a) ({ \ + u64 offset; \ + \ + offset = 0x408ull; \ + if (mcs->hw->mcs_blks > 1) \ + offset = 0xa28ull; \ + offset += (a) * 0x8ull; \ + offset; }) + + +#define MCSX_MCS_TOP_SLAVE_CHANNEL_CFG(a) ({ \ + u64 offset; \ + \ + offset = 0x808ull; \ + if (mcs->hw->mcs_blks > 1) \ + offset = 0xa68ull; \ + offset += (a) * 0x8ull; \ + offset; }) + +#define MCSX_MIL_GLOBAL ({ \ + u64 offset; \ + \ + offset = 0x80000ull; \ + if (mcs->hw->mcs_blks > 1) \ + offset = 0x60000ull; \ + offset; }) + +#define MCSX_MIL_RX_LMACX_CFG(a) ({ \ + u64 offset; \ + \ + offset = 0x900a8ull; \ + if (mcs->hw->mcs_blks > 1) \ + offset = 0x700a8ull; \ + offset += (a) * 0x800ull; \ + offset; }) + +#define MCSX_HIL_GLOBAL ({ \ + u64 offset; \ + \ + offset = 0xc0000ull; \ + if (mcs->hw->mcs_blks > 1) \ + offset = 0xa0000ull; \ + offset; }) + +#define MCSX_LINK_LMACX_CFG(a) ({ \ + u64 offset; \ + \ + offset = 0x90000ull; \ + if (mcs->hw->mcs_blks > 1) \ + offset = 0x70000ull; \ + offset += (a) * 0x800ull; \ + offset; }) + +#define MCSX_MIL_RX_GBL_STATUS ({ \ + u64 offset; \ + \ + offset = 0x800c8ull; \ + if (mcs->hw->mcs_blks > 1) \ + offset = 0x600c8ull; \ + offset; }) + +#define MCSX_MIL_IP_GBL_STATUS ({ \ + u64 offset; \ + \ + offset = 0x800d0ull; \ + if (mcs->hw->mcs_blks > 1) \ + offset = 0x600d0ull; \ + offset; }) + +/* PAB */ +#define MCSX_PAB_RX_SLAVE_PORT_CFGX(a) ({ \ + u64 offset; \ + \ + offset = 0x1718ull; \ + if (mcs->hw->mcs_blks > 1) \ + offset = 0x280ull; \ + offset += (a) * 0x40ull; \ + offset; }) + +#define MCSX_PAB_TX_SLAVE_PORT_CFGX(a) (0x2930ull + (a) * 0x40ull) + +/* PEX registers */ +#define MCSX_PEX_RX_SLAVE_VLAN_CFGX(a) (0x3b58ull + (a) * 0x8ull) +#define MCSX_PEX_TX_SLAVE_VLAN_CFGX(a) (0x46f8ull + (a) * 0x8ull) +#define MCSX_PEX_TX_SLAVE_CUSTOM_TAG_REL_MODE_SEL(a) (0x788ull + (a) * 0x8ull) +#define MCSX_PEX_TX_SLAVE_PORT_CONFIG(a) (0x4738ull + (a) * 0x8ull) +#define MCSX_PEX_RX_SLAVE_PORT_CFGX(a) (0x3b98ull + (a) * 0x8ull) +#define MCSX_PEX_RX_SLAVE_RULE_ETYPE_CFGX(a) ({ \ + u64 offset; \ + \ + offset = 0x3fc0ull; \ + if (mcs->hw->mcs_blks > 1) \ + offset = 0x558ull; \ + offset += (a) * 0x8ull; \ + offset; }) + +#define MCSX_PEX_RX_SLAVE_RULE_DAX(a) ({ \ + u64 offset; \ + \ + offset = 0x4000ull; \ + if (mcs->hw->mcs_blks > 1) \ + offset = 0x598ull; \ + offset += (a) * 0x8ull; \ + offset; }) + +#define MCSX_PEX_RX_SLAVE_RULE_DA_RANGE_MINX(a) ({ \ + u64 offset; \ + \ + offset = 0x4040ull; \ + if (mcs->hw->mcs_blks > 1) \ + offset = 0x5d8ull; \ + offset += (a) * 0x8ull; \ + offset; }) + +#define MCSX_PEX_RX_SLAVE_RULE_DA_RANGE_MAXX(a) ({ \ + u64 offset; \ + \ + offset = 0x4048ull; \ + if (mcs->hw->mcs_blks > 1) \ + offset = 0x5e0ull; \ + offset += (a) * 0x8ull; \ + offset; }) + +#define MCSX_PEX_RX_SLAVE_RULE_COMBO_MINX(a) ({ \ + u64 offset; \ + \ + offset = 0x4080ull; \ + if (mcs->hw->mcs_blks > 1) \ + offset = 0x648ull; \ + offset += (a) * 0x8ull; \ + offset; }) + +#define MCSX_PEX_RX_SLAVE_RULE_COMBO_MAXX(a) ({ \ + u64 offset; \ + \ + offset = 0x4088ull; \ + if (mcs->hw->mcs_blks > 1) \ + offset = 0x650ull; \ + offset += (a) * 0x8ull; \ + offset; }) + +#define MCSX_PEX_RX_SLAVE_RULE_COMBO_ETX(a) ({ \ + u64 offset; \ + \ + offset = 0x4090ull; \ + if (mcs->hw->mcs_blks > 1) \ + offset = 0x658ull; \ + offset += (a) * 0x8ull; \ + offset; }) + +#define MCSX_PEX_RX_SLAVE_RULE_MAC ({ \ + u64 offset; \ + \ + offset = 0x40e0ull; \ + if (mcs->hw->mcs_blks > 1) \ + offset = 0x6d8ull; \ + offset; }) + +#define MCSX_PEX_RX_SLAVE_RULE_ENABLE ({ \ + u64 offset; \ + \ + offset = 0x40e8ull; \ + if (mcs->hw->mcs_blks > 1) \ + offset = 0x6e0ull; \ + offset; }) + +#define MCSX_PEX_TX_SLAVE_RULE_ETYPE_CFGX(a) ({ \ + u64 offset; \ + \ + offset = 0x4b60ull; \ + if (mcs->hw->mcs_blks > 1) \ + offset = 0x7d8ull; \ + offset += (a) * 0x8ull; \ + offset; }) + +#define MCSX_PEX_TX_SLAVE_RULE_DAX(a) ({ \ + u64 offset; \ + \ + offset = 0x4ba0ull; \ + if (mcs->hw->mcs_blks > 1) \ + offset = 0x818ull; \ + offset += (a) * 0x8ull; \ + offset; }) + +#define MCSX_PEX_TX_SLAVE_RULE_DA_RANGE_MINX(a) ({ \ + u64 offset; \ + \ + offset = 0x4be0ull; \ + if (mcs->hw->mcs_blks > 1) \ + offset = 0x858ull; \ + offset += (a) * 0x8ull; \ + offset; }) + +#define MCSX_PEX_TX_SLAVE_RULE_DA_RANGE_MAXX(a) ({ \ + u64 offset; \ + \ + offset = 0x4be8ull; \ + if (mcs->hw->mcs_blks > 1) \ + offset = 0x860ull; \ + offset += (a) * 0x8ull; \ + offset; }) + +#define MCSX_PEX_TX_SLAVE_RULE_COMBO_MINX(a) ({ \ + u64 offset; \ + \ + offset = 0x4c20ull; \ + if (mcs->hw->mcs_blks > 1) \ + offset = 0x8c8ull; \ + offset += (a) * 0x8ull; \ + offset; }) + +#define MCSX_PEX_TX_SLAVE_RULE_COMBO_MAXX(a) ({ \ + u64 offset; \ + \ + offset = 0x4c28ull; \ + if (mcs->hw->mcs_blks > 1) \ + offset = 0x8d0ull; \ + offset += (a) * 0x8ull; \ + offset; }) + +#define MCSX_PEX_TX_SLAVE_RULE_COMBO_ETX(a) ({ \ + u64 offset; \ + \ + offset = 0x4c30ull; \ + if (mcs->hw->mcs_blks > 1) \ + offset = 0x8d8ull; \ + offset += (a) * 0x8ull; \ + offset; }) + +#define MCSX_PEX_TX_SLAVE_RULE_MAC ({ \ + u64 offset; \ + \ + offset = 0x4c80ull; \ + if (mcs->hw->mcs_blks > 1) \ + offset = 0x958ull; \ + offset; }) + +#define MCSX_PEX_TX_SLAVE_RULE_ENABLE ({ \ + u64 offset; \ + \ + offset = 0x4c88ull; \ + if (mcs->hw->mcs_blks > 1) \ + offset = 0x960ull; \ + offset; }) + +#define MCSX_PEX_RX_SLAVE_PEX_CONFIGURATION ({ \ + u64 offset; \ + \ + offset = 0x3b50ull; \ + if (mcs->hw->mcs_blks > 1) \ + offset = 0x4c0ull; \ + offset; }) + +/* CNF10K-B */ +#define MCSX_PEX_RX_SLAVE_CUSTOM_TAGX(a) (0x4c8ull + (a) * 0x8ull) +#define MCSX_PEX_TX_SLAVE_CUSTOM_TAGX(a) (0x748ull + (a) * 0x8ull) +#define MCSX_PEX_RX_SLAVE_ETYPE_ENABLE 0x6e8ull +#define MCSX_PEX_TX_SLAVE_ETYPE_ENABLE 0x968ull + +/* BEE */ +#define MCSX_BBE_RX_SLAVE_PADDING_CTL 0xe08ull +#define MCSX_BBE_TX_SLAVE_PADDING_CTL 0x12f8ull +#define MCSX_BBE_RX_SLAVE_CAL_ENTRY 0x180ull +#define MCSX_BBE_RX_SLAVE_CAL_LEN 0x188ull +#define MCSX_PAB_RX_SLAVE_FIFO_SKID_CFGX(a) (0x290ull + (a) * 0x40ull) +#define MCSX_BBE_RX_SLAVE_DFIFO_OVERFLOW_0 0xe20 +#define MCSX_BBE_TX_SLAVE_DFIFO_OVERFLOW_0 0x1298 +#define MCSX_BBE_RX_SLAVE_PLFIFO_OVERFLOW_0 0xe40 +#define MCSX_BBE_TX_SLAVE_PLFIFO_OVERFLOW_0 0x12b8 +#define MCSX_BBE_RX_SLAVE_BBE_INT ({ \ + u64 offset; \ + \ + offset = 0xe00ull; \ + if (mcs->hw->mcs_blks > 1) \ + offset = 0x160ull; \ + offset; }) + +#define MCSX_BBE_RX_SLAVE_BBE_INT_ENB ({ \ + u64 offset; \ + \ + offset = 0xe08ull; \ + if (mcs->hw->mcs_blks > 1) \ + offset = 0x168ull; \ + offset; }) + +#define MCSX_BBE_RX_SLAVE_BBE_INT_INTR_RW ({ \ + u64 offset; \ + \ + offset = 0xe08ull; \ + if (mcs->hw->mcs_blks > 1) \ + offset = 0x178ull; \ + offset; }) + +#define MCSX_BBE_TX_SLAVE_BBE_INT ({ \ + u64 offset; \ + \ + offset = 0x1278ull; \ + if (mcs->hw->mcs_blks > 1) \ + offset = 0x1e0ull; \ + offset; }) + +#define MCSX_BBE_TX_SLAVE_BBE_INT_INTR_RW ({ \ + u64 offset; \ + \ + offset = 0x1278ull; \ + if (mcs->hw->mcs_blks > 1) \ + offset = 0x1f8ull; \ + offset; }) + +#define MCSX_BBE_TX_SLAVE_BBE_INT_ENB ({ \ + u64 offset; \ + \ + offset = 0x1280ull; \ + if (mcs->hw->mcs_blks > 1) \ + offset = 0x1e8ull; \ + offset; }) + +#define MCSX_PAB_RX_SLAVE_PAB_INT ({ \ + u64 offset; \ + \ + offset = 0x16f0ull; \ + if (mcs->hw->mcs_blks > 1) \ + offset = 0x260ull; \ + offset; }) + +#define MCSX_PAB_RX_SLAVE_PAB_INT_ENB ({ \ + u64 offset; \ + \ + offset = 0x16f8ull; \ + if (mcs->hw->mcs_blks > 1) \ + offset = 0x268ull; \ + offset; }) + +#define MCSX_PAB_RX_SLAVE_PAB_INT_INTR_RW ({ \ + u64 offset; \ + \ + offset = 0x16f8ull; \ + if (mcs->hw->mcs_blks > 1) \ + offset = 0x278ull; \ + offset; }) + +#define MCSX_PAB_TX_SLAVE_PAB_INT ({ \ + u64 offset; \ + \ + offset = 0x2908ull; \ + if (mcs->hw->mcs_blks > 1) \ + offset = 0x380ull; \ + offset; }) + +#define MCSX_PAB_TX_SLAVE_PAB_INT_ENB ({ \ + u64 offset; \ + \ + offset = 0x2910ull; \ + if (mcs->hw->mcs_blks > 1) \ + offset = 0x388ull; \ + offset; }) + +#define MCSX_PAB_TX_SLAVE_PAB_INT_INTR_RW ({ \ + u64 offset; \ + \ + offset = 0x16f8ull; \ + if (mcs->hw->mcs_blks > 1) \ + offset = 0x398ull; \ + offset; }) + +/* CPM registers */ +#define MCSX_CPM_RX_SLAVE_FLOWID_TCAM_DATAX(a, b) ({ \ + u64 offset; \ + \ + offset = 0x30740ull; \ + if (mcs->hw->mcs_blks > 1) \ + offset = 0x3bf8ull; \ + offset += (a) * 0x8ull + (b) * 0x20ull; \ + offset; }) + +#define MCSX_CPM_RX_SLAVE_FLOWID_TCAM_MASKX(a, b) ({ \ + u64 offset; \ + \ + offset = 0x34740ull; \ + if (mcs->hw->mcs_blks > 1) \ + offset = 0x43f8ull; \ + offset += (a) * 0x8ull + (b) * 0x20ull; \ + offset; }) + +#define MCSX_CPM_RX_SLAVE_FLOWID_TCAM_ENA_0 ({ \ + u64 offset; \ + \ + offset = 0x30700ull; \ + if (mcs->hw->mcs_blks > 1) \ + offset = 0x3bd8ull; \ + offset; }) + +#define MCSX_CPM_RX_SLAVE_SC_CAMX(a, b) ({ \ + u64 offset; \ + \ + offset = 0x38780ull; \ + if (mcs->hw->mcs_blks > 1) \ + offset = 0x4c08ull; \ + offset += (a) * 0x8ull + (b) * 0x10ull; \ + offset; }) + +#define MCSX_CPM_RX_SLAVE_SC_CAM_ENA(a) ({ \ + u64 offset; \ + \ + offset = 0x38740ull + (a) * 0x8ull; \ + if (mcs->hw->mcs_blks > 1) \ + offset = 0x4bf8ull; \ + offset; }) + +#define MCSX_CPM_RX_SLAVE_SECY_MAP_MEMX(a) ({ \ + u64 offset; \ + \ + offset = 0x23ee0ull; \ + if (mcs->hw->mcs_blks > 1) \ + offset = 0xbd0ull; \ + offset += (a) * 0x8ull; \ + offset; }) + +#define MCSX_CPM_RX_SLAVE_SECY_PLCY_MEM_0X(a) ({ \ + u64 offset; \ + \ + offset = (0x246e0ull + (a) * 0x10ull); \ + if (mcs->hw->mcs_blks > 1) \ + offset = (0xdd0ull + (a) * 0x8ull); \ + offset; }) + +#define MCSX_CPM_RX_SLAVE_SA_KEY_LOCKOUTX(a) ({ \ + u64 offset; \ + \ + offset = 0x23E90ull; \ + if (mcs->hw->mcs_blks > 1) \ + offset = 0xbb0ull; \ + offset += (a) * 0x8ull; \ + offset; }) + +#define MCSX_CPM_RX_SLAVE_SA_MAP_MEMX(a) ({ \ + u64 offset; \ + \ + offset = 0x256e0ull; \ + if (mcs->hw->mcs_blks > 1) \ + offset = 0xfd0ull; \ + offset += (a) * 0x8ull; \ + offset; }) + +#define MCSX_CPM_RX_SLAVE_SA_PLCY_MEMX(a, b) ({ \ + u64 offset; \ + \ + offset = 0x27700ull; \ + if (mcs->hw->mcs_blks > 1) \ + offset = 0x17d8ull; \ + offset += (a) * 0x8ull + (b) * 0x40ull; \ + offset; }) + +#define MCSX_CPM_RX_SLAVE_SA_PN_TABLE_MEMX(a) ({ \ + u64 offset; \ + \ + offset = 0x2f700ull; \ + if (mcs->hw->mcs_blks > 1) \ + offset = 0x37d8; \ + offset += (a) * 0x8ull; \ + offset; }) + +#define MCSX_CPM_RX_SLAVE_XPN_THRESHOLD ({ \ + u64 offset; \ + \ + offset = 0x23e40ull; \ + if (mcs->hw->mcs_blks > 1) \ + offset = 0xb90ull; \ + offset; }) + +#define MCSX_CPM_RX_SLAVE_PN_THRESHOLD ({ \ + u64 offset; \ + \ + offset = 0x23e48ull; \ + if (mcs->hw->mcs_blks > 1) \ + offset = 0xb98ull; \ + offset; }) + +#define MCSX_CPM_RX_SLAVE_PN_THRESH_REACHEDX(a) ({ \ + u64 offset; \ + \ + offset = 0x23e50ull; \ + if (mcs->hw->mcs_blks > 1) \ + offset = 0xba0ull; \ + offset += (a) * 0x8ull; \ + offset; }) + +#define MCSX_CPM_RX_SLAVE_FLOWID_TCAM_ENA_1 0x30708ull +#define MCSX_CPM_RX_SLAVE_SECY_PLCY_MEM_1X(a) (0x246e8ull + (a) * 0x10ull) + +/* TX registers */ +#define MCSX_CPM_TX_SLAVE_FLOWID_TCAM_DATAX(a, b) ({ \ + u64 offset; \ + \ + offset = 0x51d50ull; \ + if (mcs->hw->mcs_blks > 1) \ + offset = 0xa7c0ull; \ + offset += (a) * 0x8ull + (b) * 0x20ull; \ + offset; }) + +#define MCSX_CPM_TX_SLAVE_FLOWID_TCAM_MASKX(a, b) ({ \ + u64 offset; \ + \ + offset = 0x55d50ull; \ + if (mcs->hw->mcs_blks > 1) \ + offset = 0xafc0ull; \ + offset += (a) * 0x8ull + (b) * 0x20ull; \ + offset; }) + +#define MCSX_CPM_TX_SLAVE_FLOWID_TCAM_ENA_0 ({ \ + u64 offset; \ + \ + offset = 0x51d10ull; \ + if (mcs->hw->mcs_blks > 1) \ + offset = 0xa7a0ull; \ + offset; }) + +#define MCSX_CPM_TX_SLAVE_SECY_MAP_MEM_0X(a) ({ \ + u64 offset; \ + \ + offset = 0x3e508ull + (a) * 0x8ull; \ + if (mcs->hw->mcs_blks > 1) \ + offset = 0x5550ull + (a) * 0x10ull; \ + offset; }) + +#define MCSX_CPM_TX_SLAVE_SECY_PLCY_MEMX(a) ({ \ + u64 offset; \ + \ + offset = 0x3ed08ull; \ + if (mcs->hw->mcs_blks > 1) \ + offset = 0x5950ull; \ + offset += (a) * 0x8ull; \ + offset; }) + +#define MCSX_CPM_TX_SLAVE_SA_KEY_LOCKOUTX(a) ({ \ + u64 offset; \ + \ + offset = 0x3e4c0ull; \ + if (mcs->hw->mcs_blks > 1) \ + offset = 0x5538ull; \ + offset += (a) * 0x8ull; \ + offset; }) + +#define MCSX_CPM_TX_SLAVE_SA_MAP_MEM_0X(a) ({ \ + u64 offset; \ + \ + offset = 0x3fd10ull + (a) * 0x10ull; \ + if (mcs->hw->mcs_blks > 1) \ + offset = 0x6150ull + (a) * 0x8ull; \ + offset; }) + +#define MCSX_CPM_TX_SLAVE_SA_PLCY_MEMX(a, b) ({ \ + u64 offset; \ + \ + offset = 0x40d10ull; \ + if (mcs->hw->mcs_blks > 1) \ + offset = 0x63a0ull; \ + offset += (a) * 0x8ull + (b) * 0x80ull; \ + offset; }) + +#define MCSX_CPM_TX_SLAVE_SA_PN_TABLE_MEMX(a) ({ \ + u64 offset; \ + \ + offset = 0x50d10ull; \ + if (mcs->hw->mcs_blks > 1) \ + offset = 0xa3a0ull; \ + offset += (a) * 0x8ull; \ + offset; }) + +#define MCSX_CPM_TX_SLAVE_XPN_THRESHOLD ({ \ + u64 offset; \ + \ + offset = 0x3e4b0ull; \ + if (mcs->hw->mcs_blks > 1) \ + offset = 0x5528ull; \ + offset; }) + +#define MCSX_CPM_TX_SLAVE_PN_THRESHOLD ({ \ + u64 offset; \ + \ + offset = 0x3e4b8ull; \ + if (mcs->hw->mcs_blks > 1) \ + offset = 0x5530ull; \ + offset; }) + +#define MCSX_CPM_TX_SLAVE_SA_MAP_MEM_1X(a) (0x3fd18ull + (a) * 0x10ull) +#define MCSX_CPM_TX_SLAVE_SECY_MAP_MEM_1X(a) (0x5558ull + (a) * 0x10ull) +#define MCSX_CPM_TX_SLAVE_FLOWID_TCAM_ENA_1 0x51d18ull +#define MCSX_CPM_TX_SLAVE_TX_SA_ACTIVEX(a) (0x5b50 + (a) * 0x8ull) +#define MCSX_CPM_TX_SLAVE_SA_INDEX0_VLDX(a) (0x5d50 + (a) * 0x8ull) +#define MCSX_CPM_TX_SLAVE_SA_INDEX1_VLDX(a) (0x5f50 + (a) * 0x8ull) +#define MCSX_CPM_TX_SLAVE_AUTO_REKEY_ENABLE_0 0x5500ull + +/* CSE */ +#define MCSX_CSE_RX_MEM_SLAVE_IFINCTLBCPKTSX(a) ({ \ + u64 offset; \ + \ + offset = 0x9e80ull; \ + if (mcs->hw->mcs_blks > 1) \ + offset = 0xc218ull; \ + offset += (a) * 0x8ull; \ + offset; }) + +#define MCSX_CSE_RX_MEM_SLAVE_IFINCTLMCPKTSX(a) ({ \ + u64 offset; \ + \ + offset = 0x9680ull; \ + if (mcs->hw->mcs_blks > 1) \ + offset = 0xc018ull; \ + offset += (a) * 0x8ull; \ + offset; }) + +#define MCSX_CSE_RX_MEM_SLAVE_IFINCTLOCTETSX(a) ({ \ + u64 offset; \ + \ + offset = 0x6e80ull; \ + if (mcs->hw->mcs_blks > 1) \ + offset = 0xbc18ull; \ + offset += (a) * 0x8ull; \ + offset; }) + +#define MCSX_CSE_RX_MEM_SLAVE_IFINCTLUCPKTSX(a) ({ \ + u64 offset; \ + \ + offset = 0x8e80ull; \ + if (mcs->hw->mcs_blks > 1) \ + offset = 0xbe18ull; \ + offset += (a) * 0x8ull; \ + offset; }) + +#define MCSX_CSE_RX_MEM_SLAVE_IFINUNCTLBCPKTSX(a) ({ \ + u64 offset; \ + \ + offset = 0x8680ull; \ + if (mcs->hw->mcs_blks > 1) \ + offset = 0xca18ull; \ + offset += (a) * 0x8ull; \ + offset; }) + +#define MCSX_CSE_RX_MEM_SLAVE_IFINUNCTLMCPKTSX(a) ({ \ + u64 offset; \ + \ + offset = 0x7e80ull; \ + if (mcs->hw->mcs_blks > 1) \ + offset = 0xc818ull; \ + offset += (a) * 0x8ull; \ + offset; }) + +#define MCSX_CSE_RX_MEM_SLAVE_IFINUNCTLOCTETSX(a) ({ \ + u64 offset; \ + \ + offset = 0x6680ull; \ + if (mcs->hw->mcs_blks > 1) \ + offset = 0xc418ull; \ + offset += (a) * 0x8ull; \ + offset; }) + +#define MCSX_CSE_RX_MEM_SLAVE_IFINUNCTLUCPKTSX(a) ({ \ + u64 offset; \ + \ + offset = 0x7680ull; \ + if (mcs->hw->mcs_blks > 1) \ + offset = 0xc618ull; \ + offset += (a) * 0x8ull; \ + offset; }) + +#define MCSX_CSE_RX_MEM_SLAVE_INOCTETSSECYDECRYPTEDX(a) ({ \ + u64 offset; \ + \ + offset = 0x5e80ull; \ + if (mcs->hw->mcs_blks > 1) \ + offset = 0xdc18ull; \ + offset += (a) * 0x8ull; \ + offset; }) + +#define MCSX_CSE_RX_MEM_SLAVE_INOCTETSSECYVALIDATEX(a)({ \ + u64 offset; \ + \ + offset = 0x5680ull; \ + if (mcs->hw->mcs_blks > 1) \ + offset = 0xda18ull; \ + offset += (a) * 0x8ull; \ + offset; }) + +#define MCSX_CSE_RX_MEM_SLAVE_INPKTSCTRLPORTDISABLEDX(a) ({ \ + u64 offset; \ + \ + offset = 0xd680ull; \ + if (mcs->hw->mcs_blks > 1) \ + offset = 0xce18ull; \ + offset += (a) * 0x8ull; \ + offset; }) + +#define MCSX_CSE_RX_MEM_SLAVE_INPKTSFLOWIDTCAMHITX(a) ({ \ + u64 offset; \ + \ + offset = 0x16a80ull; \ + if (mcs->hw->mcs_blks > 1) \ + offset = 0xec78ull; \ + offset += (a) * 0x8ull; \ + offset; }) + +#define MCSX_CSE_RX_MEM_SLAVE_INPKTSFLOWIDTCAMMISSX(a) ({ \ + u64 offset; \ + \ + offset = 0x16680ull; \ + if (mcs->hw->mcs_blks > 1) \ + offset = 0xec38ull; \ + offset += (a) * 0x8ull; \ + offset; }) + +#define MCSX_CSE_RX_MEM_SLAVE_INPKTSPARSEERRX(a) ({ \ + u64 offset; \ + \ + offset = 0x16880ull; \ + if (mcs->hw->mcs_blks > 1) \ + offset = 0xec18ull; \ + offset += (a) * 0x8ull; \ + offset; }) + +#define MCSX_CSE_RX_MEM_SLAVE_INPKTSSCCAMHITX(a) ({ \ + u64 offset; \ + \ + offset = 0xfe80ull; \ + if (mcs->hw->mcs_blks > 1) \ + offset = 0xde18ull; \ + offset += (a) * 0x8ull; \ + offset; }) + +#define MCSX_CSE_RX_MEM_SLAVE_INPKTSSCINVALIDX(a) ({ \ + u64 offset; \ + \ + offset = 0x10680ull; \ + if (mcs->hw->mcs_blks > 1) \ + offset = 0xe418ull; \ + offset += (a) * 0x8ull; \ + offset; }) + +#define MCSX_CSE_RX_MEM_SLAVE_INPKTSSCNOTVALIDX(a) ({ \ + u64 offset; \ + \ + offset = 0x10e80ull; \ + if (mcs->hw->mcs_blks > 1) \ + offset = 0xe218ull; \ + offset += (a) * 0x8ull; \ + offset; }) + +#define MCSX_CSE_RX_MEM_SLAVE_INPKTSSECYBADTAGX(a) ({ \ + u64 offset; \ + \ + offset = 0xae80ull; \ + if (mcs->hw->mcs_blks > 1) \ + offset = 0xd418ull; \ + offset += (a) * 0x8ull; \ + offset; }) + +#define MCSX_CSE_RX_MEM_SLAVE_INPKTSSECYNOSAX(a) ({ \ + u64 offset; \ + \ + offset = 0xc680ull; \ + if (mcs->hw->mcs_blks > 1) \ + offset = 0xd618ull; \ + offset += (a) * 0x8ull; \ + offset; }) + +#define MCSX_CSE_RX_MEM_SLAVE_INPKTSSECYNOSAERRORX(a) ({ \ + u64 offset; \ + \ + offset = 0xce80ull; \ + if (mcs->hw->mcs_blks > 1) \ + offset = 0xd818ull; \ + offset += (a) * 0x8ull; \ + offset; }) + +#define MCSX_CSE_RX_MEM_SLAVE_INPKTSSECYTAGGEDCTLX(a) ({ \ + u64 offset; \ + \ + offset = 0xbe80ull; \ + if (mcs->hw->mcs_blks > 1) \ + offset = 0xcc18ull; \ + offset += (a) * 0x8ull; \ + offset; }) + +#define MCSX_CSE_RX_SLAVE_CTRL ({ \ + u64 offset; \ + \ + offset = 0x52a0ull; \ + if (mcs->hw->mcs_blks > 1) \ + offset = 0x9c0ull; \ + offset; }) + +#define MCSX_CSE_RX_SLAVE_STATS_CLEAR ({ \ + u64 offset; \ + \ + offset = 0x52b8ull; \ + if (mcs->hw->mcs_blks > 1) \ + offset = 0x9d8ull; \ + offset; }) + +#define MCSX_CSE_RX_MEM_SLAVE_INPKTSSCUNCHECKEDX(a) ({ \ + u64 offset; \ + \ + offset = 0xee80ull; \ + if (mcs->hw->mcs_blks > 1) \ + offset = 0xe818ull; \ + offset += (a) * 0x8ull; \ + offset; }) + +#define MCSX_CSE_RX_MEM_SLAVE_INPKTSSECYUNTAGGEDX(a) ({ \ + u64 offset; \ + \ + offset = 0xa680ull; \ + if (mcs->hw->mcs_blks > 1) \ + offset = 0xd018ull; \ + offset += (a) * 0x8ull; \ + offset; }) + +#define MCSX_CSE_RX_MEM_SLAVE_INPKTSSCLATEORDELAYEDX(a) ({ \ + u64 offset; \ + \ + offset = 0xf680ull; \ + if (mcs->hw->mcs_blks > 1) \ + offset = 0xe018ull; \ + offset += (a) * 0x8ull; \ + offset; }) + +#define MCSX_CSE_RX_MEM_SLAVE_INOCTETSSCDECRYPTEDX(a) (0xe680ull + (a) * 0x8ull) +#define MCSX_CSE_RX_MEM_SLAVE_INOCTETSSCVALIDATEX(a) (0xde80ull + (a) * 0x8ull) +#define MCSX_CSE_RX_MEM_SLAVE_INPKTSSECYNOTAGX(a) (0xd218 + (a) * 0x8ull) +#define MCSX_CSE_RX_MEM_SLAVE_INPKTSSECYCTLX(a) (0xb680ull + (a) * 0x8ull) +#define MCSX_CSE_RX_MEM_SLAVE_INPKTSSAINVALIDX(a) (0x12680ull + (a) * 0x8ull) +#define MCSX_CSE_RX_MEM_SLAVE_INPKTSSANOTUSINGSAERRORX(a) (0x15680ull + (a) * 0x8ull) +#define MCSX_CSE_RX_MEM_SLAVE_INPKTSSANOTVALIDX(a) (0x13680ull + (a) * 0x8ull) +#define MCSX_CSE_RX_MEM_SLAVE_INPKTSSAOKX(a) (0x11680ull + (a) * 0x8ull) +#define MCSX_CSE_RX_MEM_SLAVE_INPKTSSAUNUSEDSAX(a) (0x14680ull + (a) * 0x8ull) +#define MCSX_CSE_RX_MEM_SLAVE_INPKTSEARLYPREEMPTERRX(a) (0xec58ull + (a) * 0x8ull) +#define MCSX_CSE_RX_MEM_SLAVE_INPKTSSCOKX(a) (0xea18ull + (a) * 0x8ull) +#define MCSX_CSE_RX_MEM_SLAVE_INPKTSSCDELAYEDX(a) (0xe618ull + (a) * 0x8ull) + +/* CSE TX */ +#define MCSX_CSE_TX_MEM_SLAVE_IFOUTCOMMONOCTETSX(a) (0x18440ull + (a) * 0x8ull) +#define MCSX_CSE_TX_MEM_SLAVE_IFOUTCTLBCPKTSX(a) ({ \ + u64 offset; \ + \ + offset = 0x1c440ull; \ + if (mcs->hw->mcs_blks > 1) \ + offset = 0xf478ull; \ + offset += (a) * 0x8ull; \ + offset; }) + +#define MCSX_CSE_TX_MEM_SLAVE_IFOUTCTLMCPKTSX(a) ({ \ + u64 offset; \ + \ + offset = 0x1bc40ull; \ + if (mcs->hw->mcs_blks > 1) \ + offset = 0xf278ull; \ + offset += (a) * 0x8ull; \ + offset; }) + +#define MCSX_CSE_TX_MEM_SLAVE_IFOUTCTLOCTETSX(a) ({ \ + u64 offset; \ + \ + offset = 0x19440ull; \ + if (mcs->hw->mcs_blks > 1) \ + offset = 0xee78ull; \ + offset += (a) * 0x8ull; \ + offset; }) + +#define MCSX_CSE_TX_MEM_SLAVE_IFOUTCTLUCPKTSX(a) ({ \ + u64 offset; \ + \ + offset = 0x1b440ull; \ + if (mcs->hw->mcs_blks > 1) \ + offset = 0xf078ull; \ + offset += (a) * 0x8ull; \ + offset; }) + +#define MCSX_CSE_TX_MEM_SLAVE_IFOUTUNCTLBCPKTSX(a) ({ \ + u64 offset; \ + \ + offset = 0x1ac40ull; \ + if (mcs->hw->mcs_blks > 1) \ + offset = 0xfc78ull; \ + offset += (a) * 0x8ull; \ + offset; }) + +#define MCSX_CSE_TX_MEM_SLAVE_IFOUTUNCTLMCPKTSX(a) ({ \ + u64 offset; \ + \ + offset = 0x1a440ull; \ + if (mcs->hw->mcs_blks > 1) \ + offset = 0xfa78ull; \ + offset += (a) * 0x8ull; \ + offset; }) + +#define MCSX_CSE_TX_MEM_SLAVE_IFOUTUNCTLOCTETSX(a) ({ \ + u64 offset; \ + \ + offset = 0x18c40ull; \ + if (mcs->hw->mcs_blks > 1) \ + offset = 0xf678ull; \ + offset += (a) * 0x8ull; \ + offset; }) + +#define MCSX_CSE_TX_MEM_SLAVE_IFOUTUNCTLUCPKTSX(a) ({ \ + u64 offset; \ + \ + offset = 0x19c40ull; \ + if (mcs->hw->mcs_blks > 1) \ + offset = 0xf878ull; \ + offset += (a) * 0x8ull; \ + offset; }) + +#define MCSX_CSE_TX_MEM_SLAVE_OUTOCTETSSECYENCRYPTEDX(a) ({ \ + u64 offset; \ + \ + offset = 0x17c40ull; \ + if (mcs->hw->mcs_blks > 1) \ + offset = 0x10878ull; \ + offset += (a) * 0x8ull; \ + offset; }) + +#define MCSX_CSE_TX_MEM_SLAVE_OUTOCTETSSECYPROTECTEDX(a) ({ \ + u64 offset; \ + \ + offset = 0x17440ull; \ + if (mcs->hw->mcs_blks > 1) \ + offset = 0x10678ull; \ + offset += (a) * 0x8ull; \ + offset; }) + +#define MCSX_CSE_TX_MEM_SLAVE_OUTPKTSCTRLPORTDISABLEDX(a) ({ \ + u64 offset; \ + \ + offset = 0x1e440ull; \ + if (mcs->hw->mcs_blks > 1) \ + offset = 0xfe78ull; \ + offset += (a) * 0x8ull; \ + offset; }) + +#define MCSX_CSE_TX_MEM_SLAVE_OUTPKTSFLOWIDTCAMHITX(a) ({ \ + u64 offset; \ + \ + offset = 0x23240ull; \ + if (mcs->hw->mcs_blks > 1) \ + offset = 0x10ed8ull; \ + offset += (a) * 0x8ull; \ + offset; }) + +#define MCSX_CSE_TX_MEM_SLAVE_OUTPKTSFLOWIDTCAMMISSX(a) ({ \ + u64 offset; \ + \ + offset = 0x22c40ull; \ + if (mcs->hw->mcs_blks > 1) \ + offset = 0x10e98ull; \ + offset += (a) * 0x8ull; \ + offset; }) + +#define MCSX_CSE_TX_MEM_SLAVE_OUTPKTSPARSEERRX(a) ({ \ + u64 offset; \ + \ + offset = 0x22e40ull; \ + if (mcs->hw->mcs_blks > 1) \ + offset = 0x10e78ull; \ + offset += (a) * 0x8ull; \ + offset; }) + +#define MCSX_CSE_TX_MEM_SLAVE_OUTPKTSSCENCRYPTEDX(a) ({ \ + u64 offset; \ + \ + offset = 0x20440ull; \ + if (mcs->hw->mcs_blks > 1) \ + offset = 0x10c78ull; \ + offset += (a) * 0x8ull; \ + offset; }) + +#define MCSX_CSE_TX_MEM_SLAVE_OUTPKTSSCPROTECTEDX(a) ({ \ + u64 offset; \ + \ + offset = 0x1fc40ull; \ + if (mcs->hw->mcs_blks > 1) \ + offset = 0x10a78ull; \ + offset += (a) * 0x8ull; \ + offset; }) + +#define MCSX_CSE_TX_MEM_SLAVE_OUTPKTSSECTAGINSERTIONERRX(a) ({ \ + u64 offset; \ + \ + offset = 0x23040ull; \ + if (mcs->hw->mcs_blks > 1) \ + offset = 0x110d8ull; \ + offset += (a) * 0x8ull; \ + offset; }) + +#define MCSX_CSE_TX_MEM_SLAVE_OUTPKTSSECYNOACTIVESAX(a) ({ \ + u64 offset; \ + \ + offset = 0x1dc40ull; \ + if (mcs->hw->mcs_blks > 1) \ + offset = 0x10278ull; \ + offset += (a) * 0x8ull; \ + offset; }) + +#define MCSX_CSE_TX_MEM_SLAVE_OUTPKTSSECYTOOLONGX(a) ({ \ + u64 offset; \ + \ + offset = 0x1d440ull; \ + if (mcs->hw->mcs_blks > 1) \ + offset = 0x10478ull; \ + offset += (a) * 0x8ull; \ + offset; }) + +#define MCSX_CSE_TX_MEM_SLAVE_OUTPKTSSECYUNTAGGEDX(a) ({ \ + u64 offset; \ + \ + offset = 0x1cc40ull; \ + if (mcs->hw->mcs_blks > 1) \ + offset = 0x10078ull; \ + offset += (a) * 0x8ull; \ + offset; }) + +#define MCSX_CSE_TX_SLAVE_CTRL ({ \ + u64 offset; \ + \ + offset = 0x54a0ull; \ + if (mcs->hw->mcs_blks > 1) \ + offset = 0xa00ull; \ + offset; }) + +#define MCSX_CSE_TX_SLAVE_STATS_CLEAR ({ \ + u64 offset; \ + \ + offset = 0x54b8ull; \ + if (mcs->hw->mcs_blks > 1) \ + offset = 0xa18ull; \ + offset; }) + +#define MCSX_CSE_TX_MEM_SLAVE_OUTOCTETSSCENCRYPTEDX(a) (0x1f440ull + (a) * 0x8ull) +#define MCSX_CSE_TX_MEM_SLAVE_OUTOCTETSSCPROTECTEDX(a) (0x1ec40ull + (a) * 0x8ull) +#define MCSX_CSE_TX_MEM_SLAVE_OUTPKTSEARLYPREEMPTERRX(a) (0x10eb8ull + (a) * 0x8ull) +#define MCSX_CSE_TX_MEM_SLAVE_OUTPKTSSAENCRYPTEDX(a) (0x21c40ull + (a) * 0x8ull) +#define MCSX_CSE_TX_MEM_SLAVE_OUTPKTSSAPROTECTEDX(a) (0x20c40ull + (a) * 0x8ull) + +#define MCSX_IP_INT ({ \ + u64 offset; \ + \ + offset = 0x80028ull; \ + if (mcs->hw->mcs_blks > 1) \ + offset = 0x60028ull; \ + offset; }) + +#define MCSX_IP_INT_ENA_W1S ({ \ + u64 offset; \ + \ + offset = 0x80040ull; \ + if (mcs->hw->mcs_blks > 1) \ + offset = 0x60040ull; \ + offset; }) + +#define MCSX_IP_INT_ENA_W1C ({ \ + u64 offset; \ + \ + offset = 0x80038ull; \ + if (mcs->hw->mcs_blks > 1) \ + offset = 0x60038ull; \ + offset; }) + +#define MCSX_TOP_SLAVE_INT_SUM ({ \ + u64 offset; \ + \ + offset = 0xc20ull; \ + if (mcs->hw->mcs_blks > 1) \ + offset = 0xab8ull; \ + offset; }) + +#define MCSX_TOP_SLAVE_INT_SUM_ENB ({ \ + u64 offset; \ + \ + offset = 0xc28ull; \ + if (mcs->hw->mcs_blks > 1) \ + offset = 0xac0ull; \ + offset; }) + +#define MCSX_CPM_RX_SLAVE_RX_INT ({ \ + u64 offset; \ + \ + offset = 0x23c00ull; \ + if (mcs->hw->mcs_blks > 1) \ + offset = 0x0ad8ull; \ + offset; }) + +#define MCSX_CPM_RX_SLAVE_RX_INT_ENB ({ \ + u64 offset; \ + \ + offset = 0x23c08ull; \ + if (mcs->hw->mcs_blks > 1) \ + offset = 0xae0ull; \ + offset; }) + +#define MCSX_CPM_TX_SLAVE_TX_INT ({ \ + u64 offset; \ + \ + offset = 0x3d490ull; \ + if (mcs->hw->mcs_blks > 1) \ + offset = 0x54a0ull; \ + offset; }) + +#define MCSX_CPM_TX_SLAVE_TX_INT_ENB ({ \ + u64 offset; \ + \ + offset = 0x3d498ull; \ + if (mcs->hw->mcs_blks > 1) \ + offset = 0x54a8ull; \ + offset; }) + +#endif diff --git a/drivers/net/ethernet/marvell/octeontx2/af/mcs_rvu_if.c b/drivers/net/ethernet/marvell/octeontx2/af/mcs_rvu_if.c new file mode 100644 index 000000000..dfd23580e --- /dev/null +++ b/drivers/net/ethernet/marvell/octeontx2/af/mcs_rvu_if.c @@ -0,0 +1,926 @@ +// SPDX-License-Identifier: GPL-2.0 +/* Marvell CN10K MCS driver + * + * Copyright (C) 2022 Marvell. + */ + +#include <linux/types.h> +#include <linux/device.h> +#include <linux/module.h> +#include <linux/pci.h> + +#include "mcs.h" +#include "rvu.h" +#include "mcs_reg.h" +#include "lmac_common.h" + +#define M(_name, _id, _fn_name, _req_type, _rsp_type) \ +static struct _req_type __maybe_unused \ +*otx2_mbox_alloc_msg_ ## _fn_name(struct rvu *rvu, int devid) \ +{ \ + struct _req_type *req; \ + \ + req = (struct _req_type *)otx2_mbox_alloc_msg_rsp( \ + &rvu->afpf_wq_info.mbox_up, devid, sizeof(struct _req_type), \ + sizeof(struct _rsp_type)); \ + if (!req) \ + return NULL; \ + req->hdr.sig = OTX2_MBOX_REQ_SIG; \ + req->hdr.id = _id; \ + return req; \ +} + +MBOX_UP_MCS_MESSAGES +#undef M + +void rvu_mcs_ptp_cfg(struct rvu *rvu, u8 rpm_id, u8 lmac_id, bool ena) +{ + struct mcs *mcs; + u64 cfg; + u8 port; + + if (!rvu->mcs_blk_cnt) + return; + + /* When ptp is enabled, RPM appends 8B header for all + * RX packets. MCS PEX need to configure to skip 8B + * during packet parsing. + */ + + /* CNF10K-B */ + if (rvu->mcs_blk_cnt > 1) { + mcs = mcs_get_pdata(rpm_id); + cfg = mcs_reg_read(mcs, MCSX_PEX_RX_SLAVE_PEX_CONFIGURATION); + if (ena) + cfg |= BIT_ULL(lmac_id); + else + cfg &= ~BIT_ULL(lmac_id); + mcs_reg_write(mcs, MCSX_PEX_RX_SLAVE_PEX_CONFIGURATION, cfg); + return; + } + /* CN10KB */ + mcs = mcs_get_pdata(0); + port = (rpm_id * rvu->hw->lmac_per_cgx) + lmac_id; + cfg = mcs_reg_read(mcs, MCSX_PEX_RX_SLAVE_PORT_CFGX(port)); + if (ena) + cfg |= BIT_ULL(0); + else + cfg &= ~BIT_ULL(0); + mcs_reg_write(mcs, MCSX_PEX_RX_SLAVE_PORT_CFGX(port), cfg); +} + +int rvu_mbox_handler_mcs_set_lmac_mode(struct rvu *rvu, + struct mcs_set_lmac_mode *req, + struct msg_rsp *rsp) +{ + struct mcs *mcs; + + if (req->mcs_id >= rvu->mcs_blk_cnt) + return MCS_AF_ERR_INVALID_MCSID; + + mcs = mcs_get_pdata(req->mcs_id); + + if (BIT_ULL(req->lmac_id) & mcs->hw->lmac_bmap) + mcs_set_lmac_mode(mcs, req->lmac_id, req->mode); + + return 0; +} + +int mcs_add_intr_wq_entry(struct mcs *mcs, struct mcs_intr_event *event) +{ + struct mcs_intrq_entry *qentry; + u16 pcifunc = event->pcifunc; + struct rvu *rvu = mcs->rvu; + struct mcs_pfvf *pfvf; + + /* Check if it is PF or VF */ + if (pcifunc & RVU_PFVF_FUNC_MASK) + pfvf = &mcs->vf[rvu_get_hwvf(rvu, pcifunc)]; + else + pfvf = &mcs->pf[rvu_get_pf(pcifunc)]; + + event->intr_mask &= pfvf->intr_mask; + + /* Check PF/VF interrupt notification is enabled */ + if (!(pfvf->intr_mask && event->intr_mask)) + return 0; + + qentry = kmalloc(sizeof(*qentry), GFP_ATOMIC); + if (!qentry) + return -ENOMEM; + + qentry->intr_event = *event; + spin_lock(&rvu->mcs_intrq_lock); + list_add_tail(&qentry->node, &rvu->mcs_intrq_head); + spin_unlock(&rvu->mcs_intrq_lock); + queue_work(rvu->mcs_intr_wq, &rvu->mcs_intr_work); + + return 0; +} + +static int mcs_notify_pfvf(struct mcs_intr_event *event, struct rvu *rvu) +{ + struct mcs_intr_info *req; + int err, pf; + + pf = rvu_get_pf(event->pcifunc); + + req = otx2_mbox_alloc_msg_mcs_intr_notify(rvu, pf); + if (!req) + return -ENOMEM; + + req->mcs_id = event->mcs_id; + req->intr_mask = event->intr_mask; + req->sa_id = event->sa_id; + req->hdr.pcifunc = event->pcifunc; + req->lmac_id = event->lmac_id; + + otx2_mbox_msg_send(&rvu->afpf_wq_info.mbox_up, pf); + err = otx2_mbox_wait_for_rsp(&rvu->afpf_wq_info.mbox_up, pf); + if (err) + dev_warn(rvu->dev, "MCS notification to pf %d failed\n", pf); + + return 0; +} + +static void mcs_intr_handler_task(struct work_struct *work) +{ + struct rvu *rvu = container_of(work, struct rvu, mcs_intr_work); + struct mcs_intrq_entry *qentry; + struct mcs_intr_event *event; + unsigned long flags; + + do { + spin_lock_irqsave(&rvu->mcs_intrq_lock, flags); + qentry = list_first_entry_or_null(&rvu->mcs_intrq_head, + struct mcs_intrq_entry, + node); + if (qentry) + list_del(&qentry->node); + + spin_unlock_irqrestore(&rvu->mcs_intrq_lock, flags); + if (!qentry) + break; /* nothing more to process */ + + event = &qentry->intr_event; + + mcs_notify_pfvf(event, rvu); + kfree(qentry); + } while (1); +} + +int rvu_mbox_handler_mcs_intr_cfg(struct rvu *rvu, + struct mcs_intr_cfg *req, + struct msg_rsp *rsp) +{ + u16 pcifunc = req->hdr.pcifunc; + struct mcs_pfvf *pfvf; + struct mcs *mcs; + + if (req->mcs_id >= rvu->mcs_blk_cnt) + return MCS_AF_ERR_INVALID_MCSID; + + mcs = mcs_get_pdata(req->mcs_id); + + /* Check if it is PF or VF */ + if (pcifunc & RVU_PFVF_FUNC_MASK) + pfvf = &mcs->vf[rvu_get_hwvf(rvu, pcifunc)]; + else + pfvf = &mcs->pf[rvu_get_pf(pcifunc)]; + + mcs->pf_map[0] = pcifunc; + pfvf->intr_mask = req->intr_mask; + + return 0; +} + +int rvu_mbox_handler_mcs_get_hw_info(struct rvu *rvu, + struct msg_req *req, + struct mcs_hw_info *rsp) +{ + struct mcs *mcs; + + if (!rvu->mcs_blk_cnt) + return MCS_AF_ERR_NOT_MAPPED; + + /* MCS resources are same across all blocks */ + mcs = mcs_get_pdata(0); + rsp->num_mcs_blks = rvu->mcs_blk_cnt; + rsp->tcam_entries = mcs->hw->tcam_entries; + rsp->secy_entries = mcs->hw->secy_entries; + rsp->sc_entries = mcs->hw->sc_entries; + rsp->sa_entries = mcs->hw->sa_entries; + return 0; +} + +int rvu_mbox_handler_mcs_port_reset(struct rvu *rvu, struct mcs_port_reset_req *req, + struct msg_rsp *rsp) +{ + struct mcs *mcs; + + if (req->mcs_id >= rvu->mcs_blk_cnt) + return MCS_AF_ERR_INVALID_MCSID; + + mcs = mcs_get_pdata(req->mcs_id); + + mcs_reset_port(mcs, req->port_id, req->reset); + + return 0; +} + +int rvu_mbox_handler_mcs_clear_stats(struct rvu *rvu, + struct mcs_clear_stats *req, + struct msg_rsp *rsp) +{ + u16 pcifunc = req->hdr.pcifunc; + struct mcs *mcs; + + if (req->mcs_id >= rvu->mcs_blk_cnt) + return MCS_AF_ERR_INVALID_MCSID; + + mcs = mcs_get_pdata(req->mcs_id); + + mutex_lock(&mcs->stats_lock); + if (req->all) + mcs_clear_all_stats(mcs, pcifunc, req->dir); + else + mcs_clear_stats(mcs, req->type, req->id, req->dir); + + mutex_unlock(&mcs->stats_lock); + return 0; +} + +int rvu_mbox_handler_mcs_get_flowid_stats(struct rvu *rvu, + struct mcs_stats_req *req, + struct mcs_flowid_stats *rsp) +{ + struct mcs *mcs; + + if (req->mcs_id >= rvu->mcs_blk_cnt) + return MCS_AF_ERR_INVALID_MCSID; + + mcs = mcs_get_pdata(req->mcs_id); + + /* In CNF10K-B, before reading the statistics, + * MCSX_MIL_GLOBAL.FORCE_CLK_EN_IP needs to be set + * to get accurate statistics + */ + if (mcs->hw->mcs_blks > 1) + mcs_set_force_clk_en(mcs, true); + + mutex_lock(&mcs->stats_lock); + mcs_get_flowid_stats(mcs, rsp, req->id, req->dir); + mutex_unlock(&mcs->stats_lock); + + /* Clear MCSX_MIL_GLOBAL.FORCE_CLK_EN_IP after reading + * the statistics + */ + if (mcs->hw->mcs_blks > 1) + mcs_set_force_clk_en(mcs, false); + + return 0; +} + +int rvu_mbox_handler_mcs_get_secy_stats(struct rvu *rvu, + struct mcs_stats_req *req, + struct mcs_secy_stats *rsp) +{ struct mcs *mcs; + + if (req->mcs_id >= rvu->mcs_blk_cnt) + return MCS_AF_ERR_INVALID_MCSID; + + mcs = mcs_get_pdata(req->mcs_id); + + if (mcs->hw->mcs_blks > 1) + mcs_set_force_clk_en(mcs, true); + + mutex_lock(&mcs->stats_lock); + + if (req->dir == MCS_RX) + mcs_get_rx_secy_stats(mcs, rsp, req->id); + else + mcs_get_tx_secy_stats(mcs, rsp, req->id); + + mutex_unlock(&mcs->stats_lock); + + if (mcs->hw->mcs_blks > 1) + mcs_set_force_clk_en(mcs, false); + + return 0; +} + +int rvu_mbox_handler_mcs_get_sc_stats(struct rvu *rvu, + struct mcs_stats_req *req, + struct mcs_sc_stats *rsp) +{ + struct mcs *mcs; + + if (req->mcs_id >= rvu->mcs_blk_cnt) + return MCS_AF_ERR_INVALID_MCSID; + + mcs = mcs_get_pdata(req->mcs_id); + + if (mcs->hw->mcs_blks > 1) + mcs_set_force_clk_en(mcs, true); + + mutex_lock(&mcs->stats_lock); + mcs_get_sc_stats(mcs, rsp, req->id, req->dir); + mutex_unlock(&mcs->stats_lock); + + if (mcs->hw->mcs_blks > 1) + mcs_set_force_clk_en(mcs, false); + + return 0; +} + +int rvu_mbox_handler_mcs_get_sa_stats(struct rvu *rvu, + struct mcs_stats_req *req, + struct mcs_sa_stats *rsp) +{ + struct mcs *mcs; + + if (req->mcs_id >= rvu->mcs_blk_cnt) + return MCS_AF_ERR_INVALID_MCSID; + + mcs = mcs_get_pdata(req->mcs_id); + + if (mcs->hw->mcs_blks > 1) + mcs_set_force_clk_en(mcs, true); + + mutex_lock(&mcs->stats_lock); + mcs_get_sa_stats(mcs, rsp, req->id, req->dir); + mutex_unlock(&mcs->stats_lock); + + if (mcs->hw->mcs_blks > 1) + mcs_set_force_clk_en(mcs, false); + + return 0; +} + +int rvu_mbox_handler_mcs_get_port_stats(struct rvu *rvu, + struct mcs_stats_req *req, + struct mcs_port_stats *rsp) +{ + struct mcs *mcs; + + if (req->mcs_id >= rvu->mcs_blk_cnt) + return MCS_AF_ERR_INVALID_MCSID; + + mcs = mcs_get_pdata(req->mcs_id); + + if (mcs->hw->mcs_blks > 1) + mcs_set_force_clk_en(mcs, true); + + mutex_lock(&mcs->stats_lock); + mcs_get_port_stats(mcs, rsp, req->id, req->dir); + mutex_unlock(&mcs->stats_lock); + + if (mcs->hw->mcs_blks > 1) + mcs_set_force_clk_en(mcs, false); + + return 0; +} + +int rvu_mbox_handler_mcs_set_active_lmac(struct rvu *rvu, + struct mcs_set_active_lmac *req, + struct msg_rsp *rsp) +{ + struct mcs *mcs; + + if (req->mcs_id >= rvu->mcs_blk_cnt) + return MCS_AF_ERR_INVALID_MCSID; + + mcs = mcs_get_pdata(req->mcs_id); + if (!mcs) + return MCS_AF_ERR_NOT_MAPPED; + + mcs->hw->lmac_bmap = req->lmac_bmap; + mcs_set_lmac_channels(req->mcs_id, req->chan_base); + return 0; +} + +int rvu_mbox_handler_mcs_port_cfg_set(struct rvu *rvu, struct mcs_port_cfg_set_req *req, + struct msg_rsp *rsp) +{ + struct mcs *mcs; + + if (req->mcs_id >= rvu->mcs_blk_cnt) + return MCS_AF_ERR_INVALID_MCSID; + + mcs = mcs_get_pdata(req->mcs_id); + + if (mcs->hw->lmac_cnt <= req->port_id || !(mcs->hw->lmac_bmap & BIT_ULL(req->port_id))) + return -EINVAL; + + mcs_set_port_cfg(mcs, req); + + return 0; +} + +int rvu_mbox_handler_mcs_port_cfg_get(struct rvu *rvu, struct mcs_port_cfg_get_req *req, + struct mcs_port_cfg_get_rsp *rsp) +{ + struct mcs *mcs; + + if (req->mcs_id >= rvu->mcs_blk_cnt) + return MCS_AF_ERR_INVALID_MCSID; + + mcs = mcs_get_pdata(req->mcs_id); + + if (mcs->hw->lmac_cnt <= req->port_id || !(mcs->hw->lmac_bmap & BIT_ULL(req->port_id))) + return -EINVAL; + + mcs_get_port_cfg(mcs, req, rsp); + + return 0; +} + +int rvu_mbox_handler_mcs_custom_tag_cfg_get(struct rvu *rvu, struct mcs_custom_tag_cfg_get_req *req, + struct mcs_custom_tag_cfg_get_rsp *rsp) +{ + struct mcs *mcs; + + if (req->mcs_id >= rvu->mcs_blk_cnt) + return MCS_AF_ERR_INVALID_MCSID; + + mcs = mcs_get_pdata(req->mcs_id); + + mcs_get_custom_tag_cfg(mcs, req, rsp); + + return 0; +} + +int rvu_mcs_flr_handler(struct rvu *rvu, u16 pcifunc) +{ + struct mcs *mcs; + int mcs_id; + + /* CNF10K-B mcs0-6 are mapped to RPM2-8*/ + if (rvu->mcs_blk_cnt > 1) { + for (mcs_id = 0; mcs_id < rvu->mcs_blk_cnt; mcs_id++) { + mcs = mcs_get_pdata(mcs_id); + mcs_free_all_rsrc(mcs, MCS_RX, pcifunc); + mcs_free_all_rsrc(mcs, MCS_TX, pcifunc); + } + } else { + /* CN10K-B has only one mcs block */ + mcs = mcs_get_pdata(0); + mcs_free_all_rsrc(mcs, MCS_RX, pcifunc); + mcs_free_all_rsrc(mcs, MCS_TX, pcifunc); + } + return 0; +} + +int rvu_mbox_handler_mcs_flowid_ena_entry(struct rvu *rvu, + struct mcs_flowid_ena_dis_entry *req, + struct msg_rsp *rsp) +{ + struct mcs *mcs; + + if (req->mcs_id >= rvu->mcs_blk_cnt) + return MCS_AF_ERR_INVALID_MCSID; + + mcs = mcs_get_pdata(req->mcs_id); + mcs_ena_dis_flowid_entry(mcs, req->flow_id, req->dir, req->ena); + return 0; +} + +int rvu_mbox_handler_mcs_pn_table_write(struct rvu *rvu, + struct mcs_pn_table_write_req *req, + struct msg_rsp *rsp) +{ + struct mcs *mcs; + + if (req->mcs_id >= rvu->mcs_blk_cnt) + return MCS_AF_ERR_INVALID_MCSID; + + mcs = mcs_get_pdata(req->mcs_id); + mcs_pn_table_write(mcs, req->pn_id, req->next_pn, req->dir); + return 0; +} + +int rvu_mbox_handler_mcs_set_pn_threshold(struct rvu *rvu, + struct mcs_set_pn_threshold *req, + struct msg_rsp *rsp) +{ + struct mcs *mcs; + + if (req->mcs_id >= rvu->mcs_blk_cnt) + return MCS_AF_ERR_INVALID_MCSID; + + mcs = mcs_get_pdata(req->mcs_id); + + mcs_pn_threshold_set(mcs, req); + + return 0; +} + +int rvu_mbox_handler_mcs_rx_sc_sa_map_write(struct rvu *rvu, + struct mcs_rx_sc_sa_map *req, + struct msg_rsp *rsp) +{ + struct mcs *mcs; + + if (req->mcs_id >= rvu->mcs_blk_cnt) + return MCS_AF_ERR_INVALID_MCSID; + + mcs = mcs_get_pdata(req->mcs_id); + mcs->mcs_ops->mcs_rx_sa_mem_map_write(mcs, req); + return 0; +} + +int rvu_mbox_handler_mcs_tx_sc_sa_map_write(struct rvu *rvu, + struct mcs_tx_sc_sa_map *req, + struct msg_rsp *rsp) +{ + struct mcs *mcs; + + if (req->mcs_id >= rvu->mcs_blk_cnt) + return MCS_AF_ERR_INVALID_MCSID; + + mcs = mcs_get_pdata(req->mcs_id); + mcs->mcs_ops->mcs_tx_sa_mem_map_write(mcs, req); + mcs->tx_sa_active[req->sc_id] = req->tx_sa_active; + + return 0; +} + +int rvu_mbox_handler_mcs_sa_plcy_write(struct rvu *rvu, + struct mcs_sa_plcy_write_req *req, + struct msg_rsp *rsp) +{ + struct mcs *mcs; + int i; + + if (req->mcs_id >= rvu->mcs_blk_cnt) + return MCS_AF_ERR_INVALID_MCSID; + + mcs = mcs_get_pdata(req->mcs_id); + + for (i = 0; i < req->sa_cnt; i++) + mcs_sa_plcy_write(mcs, &req->plcy[i][0], + req->sa_index[i], req->dir); + return 0; +} + +int rvu_mbox_handler_mcs_rx_sc_cam_write(struct rvu *rvu, + struct mcs_rx_sc_cam_write_req *req, + struct msg_rsp *rsp) +{ + struct mcs *mcs; + + if (req->mcs_id >= rvu->mcs_blk_cnt) + return MCS_AF_ERR_INVALID_MCSID; + + mcs = mcs_get_pdata(req->mcs_id); + mcs_rx_sc_cam_write(mcs, req->sci, req->secy_id, req->sc_id); + return 0; +} + +int rvu_mbox_handler_mcs_secy_plcy_write(struct rvu *rvu, + struct mcs_secy_plcy_write_req *req, + struct msg_rsp *rsp) +{ struct mcs *mcs; + + if (req->mcs_id >= rvu->mcs_blk_cnt) + return MCS_AF_ERR_INVALID_MCSID; + + mcs = mcs_get_pdata(req->mcs_id); + + mcs_secy_plcy_write(mcs, req->plcy, + req->secy_id, req->dir); + return 0; +} + +int rvu_mbox_handler_mcs_flowid_entry_write(struct rvu *rvu, + struct mcs_flowid_entry_write_req *req, + struct msg_rsp *rsp) +{ + struct secy_mem_map map; + struct mcs *mcs; + + if (req->mcs_id >= rvu->mcs_blk_cnt) + return MCS_AF_ERR_INVALID_MCSID; + + mcs = mcs_get_pdata(req->mcs_id); + + /* TODO validate the flowid */ + mcs_flowid_entry_write(mcs, req->data, req->mask, + req->flow_id, req->dir); + map.secy = req->secy_id; + map.sc = req->sc_id; + map.ctrl_pkt = req->ctrl_pkt; + map.flow_id = req->flow_id; + map.sci = req->sci; + mcs->mcs_ops->mcs_flowid_secy_map(mcs, &map, req->dir); + if (req->ena) + mcs_ena_dis_flowid_entry(mcs, req->flow_id, + req->dir, true); + return 0; +} + +int rvu_mbox_handler_mcs_free_resources(struct rvu *rvu, + struct mcs_free_rsrc_req *req, + struct msg_rsp *rsp) +{ + u16 pcifunc = req->hdr.pcifunc; + struct mcs_rsrc_map *map; + struct mcs *mcs; + int rc = 0; + + if (req->mcs_id >= rvu->mcs_blk_cnt) + return MCS_AF_ERR_INVALID_MCSID; + + mcs = mcs_get_pdata(req->mcs_id); + + if (req->dir == MCS_RX) + map = &mcs->rx; + else + map = &mcs->tx; + + mutex_lock(&rvu->rsrc_lock); + /* Free all the cam resources mapped to PF/VF */ + if (req->all) { + rc = mcs_free_all_rsrc(mcs, req->dir, pcifunc); + goto exit; + } + + switch (req->rsrc_type) { + case MCS_RSRC_TYPE_FLOWID: + rc = mcs_free_rsrc(&map->flow_ids, map->flowid2pf_map, req->rsrc_id, pcifunc); + mcs_ena_dis_flowid_entry(mcs, req->rsrc_id, req->dir, false); + break; + case MCS_RSRC_TYPE_SECY: + rc = mcs_free_rsrc(&map->secy, map->secy2pf_map, req->rsrc_id, pcifunc); + mcs_clear_secy_plcy(mcs, req->rsrc_id, req->dir); + break; + case MCS_RSRC_TYPE_SC: + rc = mcs_free_rsrc(&map->sc, map->sc2pf_map, req->rsrc_id, pcifunc); + /* Disable SC CAM only on RX side */ + if (req->dir == MCS_RX) + mcs_ena_dis_sc_cam_entry(mcs, req->rsrc_id, false); + break; + case MCS_RSRC_TYPE_SA: + rc = mcs_free_rsrc(&map->sa, map->sa2pf_map, req->rsrc_id, pcifunc); + break; + } +exit: + mutex_unlock(&rvu->rsrc_lock); + return rc; +} + +int rvu_mbox_handler_mcs_alloc_resources(struct rvu *rvu, + struct mcs_alloc_rsrc_req *req, + struct mcs_alloc_rsrc_rsp *rsp) +{ + u16 pcifunc = req->hdr.pcifunc; + struct mcs_rsrc_map *map; + struct mcs *mcs; + int rsrc_id, i; + + if (req->mcs_id >= rvu->mcs_blk_cnt) + return MCS_AF_ERR_INVALID_MCSID; + + mcs = mcs_get_pdata(req->mcs_id); + + if (req->dir == MCS_RX) + map = &mcs->rx; + else + map = &mcs->tx; + + mutex_lock(&rvu->rsrc_lock); + + if (req->all) { + rsrc_id = mcs_alloc_all_rsrc(mcs, &rsp->flow_ids[0], + &rsp->secy_ids[0], + &rsp->sc_ids[0], + &rsp->sa_ids[0], + &rsp->sa_ids[1], + pcifunc, req->dir); + goto exit; + } + + switch (req->rsrc_type) { + case MCS_RSRC_TYPE_FLOWID: + for (i = 0; i < req->rsrc_cnt; i++) { + rsrc_id = mcs_alloc_rsrc(&map->flow_ids, map->flowid2pf_map, pcifunc); + if (rsrc_id < 0) + goto exit; + rsp->flow_ids[i] = rsrc_id; + rsp->rsrc_cnt++; + } + break; + case MCS_RSRC_TYPE_SECY: + for (i = 0; i < req->rsrc_cnt; i++) { + rsrc_id = mcs_alloc_rsrc(&map->secy, map->secy2pf_map, pcifunc); + if (rsrc_id < 0) + goto exit; + rsp->secy_ids[i] = rsrc_id; + rsp->rsrc_cnt++; + } + break; + case MCS_RSRC_TYPE_SC: + for (i = 0; i < req->rsrc_cnt; i++) { + rsrc_id = mcs_alloc_rsrc(&map->sc, map->sc2pf_map, pcifunc); + if (rsrc_id < 0) + goto exit; + rsp->sc_ids[i] = rsrc_id; + rsp->rsrc_cnt++; + } + break; + case MCS_RSRC_TYPE_SA: + for (i = 0; i < req->rsrc_cnt; i++) { + rsrc_id = mcs_alloc_rsrc(&map->sa, map->sa2pf_map, pcifunc); + if (rsrc_id < 0) + goto exit; + rsp->sa_ids[i] = rsrc_id; + rsp->rsrc_cnt++; + } + break; + } + + rsp->rsrc_type = req->rsrc_type; + rsp->dir = req->dir; + rsp->mcs_id = req->mcs_id; + rsp->all = req->all; + +exit: + if (rsrc_id < 0) + dev_err(rvu->dev, "Failed to allocate the mcs resources for PCIFUNC:%d\n", pcifunc); + mutex_unlock(&rvu->rsrc_lock); + return 0; +} + +int rvu_mbox_handler_mcs_alloc_ctrl_pkt_rule(struct rvu *rvu, + struct mcs_alloc_ctrl_pkt_rule_req *req, + struct mcs_alloc_ctrl_pkt_rule_rsp *rsp) +{ + u16 pcifunc = req->hdr.pcifunc; + struct mcs_rsrc_map *map; + struct mcs *mcs; + int rsrc_id; + u16 offset; + + if (req->mcs_id >= rvu->mcs_blk_cnt) + return MCS_AF_ERR_INVALID_MCSID; + + mcs = mcs_get_pdata(req->mcs_id); + + map = (req->dir == MCS_RX) ? &mcs->rx : &mcs->tx; + + mutex_lock(&rvu->rsrc_lock); + + switch (req->rule_type) { + case MCS_CTRL_PKT_RULE_TYPE_ETH: + offset = MCS_CTRLPKT_ETYPE_RULE_OFFSET; + break; + case MCS_CTRL_PKT_RULE_TYPE_DA: + offset = MCS_CTRLPKT_DA_RULE_OFFSET; + break; + case MCS_CTRL_PKT_RULE_TYPE_RANGE: + offset = MCS_CTRLPKT_DA_RANGE_RULE_OFFSET; + break; + case MCS_CTRL_PKT_RULE_TYPE_COMBO: + offset = MCS_CTRLPKT_COMBO_RULE_OFFSET; + break; + case MCS_CTRL_PKT_RULE_TYPE_MAC: + offset = MCS_CTRLPKT_MAC_EN_RULE_OFFSET; + break; + } + + rsrc_id = mcs_alloc_ctrlpktrule(&map->ctrlpktrule, map->ctrlpktrule2pf_map, offset, + pcifunc); + if (rsrc_id < 0) + goto exit; + + rsp->rule_idx = rsrc_id; + rsp->rule_type = req->rule_type; + rsp->dir = req->dir; + rsp->mcs_id = req->mcs_id; + + mutex_unlock(&rvu->rsrc_lock); + return 0; +exit: + if (rsrc_id < 0) + dev_err(rvu->dev, "Failed to allocate the mcs ctrl pkt rule for PCIFUNC:%d\n", + pcifunc); + mutex_unlock(&rvu->rsrc_lock); + return rsrc_id; +} + +int rvu_mbox_handler_mcs_free_ctrl_pkt_rule(struct rvu *rvu, + struct mcs_free_ctrl_pkt_rule_req *req, + struct msg_rsp *rsp) +{ + struct mcs *mcs; + int rc; + + if (req->mcs_id >= rvu->mcs_blk_cnt) + return MCS_AF_ERR_INVALID_MCSID; + + mcs = mcs_get_pdata(req->mcs_id); + + mutex_lock(&rvu->rsrc_lock); + + rc = mcs_free_ctrlpktrule(mcs, req); + + mutex_unlock(&rvu->rsrc_lock); + + return rc; +} + +int rvu_mbox_handler_mcs_ctrl_pkt_rule_write(struct rvu *rvu, + struct mcs_ctrl_pkt_rule_write_req *req, + struct msg_rsp *rsp) +{ + struct mcs *mcs; + int rc; + + if (req->mcs_id >= rvu->mcs_blk_cnt) + return MCS_AF_ERR_INVALID_MCSID; + + mcs = mcs_get_pdata(req->mcs_id); + + rc = mcs_ctrlpktrule_write(mcs, req); + + return rc; +} + +static void rvu_mcs_set_lmac_bmap(struct rvu *rvu) +{ + struct mcs *mcs = mcs_get_pdata(0); + unsigned long lmac_bmap; + int cgx, lmac, port; + + for (port = 0; port < mcs->hw->lmac_cnt; port++) { + cgx = port / rvu->hw->lmac_per_cgx; + lmac = port % rvu->hw->lmac_per_cgx; + if (!is_lmac_valid(rvu_cgx_pdata(cgx, rvu), lmac)) + continue; + set_bit(port, &lmac_bmap); + } + mcs->hw->lmac_bmap = lmac_bmap; +} + +int rvu_mcs_init(struct rvu *rvu) +{ + struct rvu_hwinfo *hw = rvu->hw; + int lmac, err = 0, mcs_id; + struct mcs *mcs; + + rvu->mcs_blk_cnt = mcs_get_blkcnt(); + + if (!rvu->mcs_blk_cnt) + return 0; + + /* Needed only for CN10K-B */ + if (rvu->mcs_blk_cnt == 1) { + err = mcs_set_lmac_channels(0, hw->cgx_chan_base); + if (err) + return err; + /* Set active lmacs */ + rvu_mcs_set_lmac_bmap(rvu); + } + + /* Install default tcam bypass entry and set port to operational mode */ + for (mcs_id = 0; mcs_id < rvu->mcs_blk_cnt; mcs_id++) { + mcs = mcs_get_pdata(mcs_id); + mcs_install_flowid_bypass_entry(mcs); + for (lmac = 0; lmac < mcs->hw->lmac_cnt; lmac++) + mcs_set_lmac_mode(mcs, lmac, 0); + + mcs->rvu = rvu; + + /* Allocated memory for PFVF data */ + mcs->pf = devm_kcalloc(mcs->dev, hw->total_pfs, + sizeof(struct mcs_pfvf), GFP_KERNEL); + if (!mcs->pf) + return -ENOMEM; + + mcs->vf = devm_kcalloc(mcs->dev, hw->total_vfs, + sizeof(struct mcs_pfvf), GFP_KERNEL); + if (!mcs->vf) + return -ENOMEM; + } + + /* Initialize the wq for handling mcs interrupts */ + INIT_LIST_HEAD(&rvu->mcs_intrq_head); + INIT_WORK(&rvu->mcs_intr_work, mcs_intr_handler_task); + rvu->mcs_intr_wq = alloc_workqueue("mcs_intr_wq", 0, 0); + if (!rvu->mcs_intr_wq) { + dev_err(rvu->dev, "mcs alloc workqueue failed\n"); + return -ENOMEM; + } + + return err; +} + +void rvu_mcs_exit(struct rvu *rvu) +{ + if (!rvu->mcs_intr_wq) + return; + + flush_workqueue(rvu->mcs_intr_wq); + destroy_workqueue(rvu->mcs_intr_wq); + rvu->mcs_intr_wq = NULL; +} diff --git a/drivers/net/ethernet/marvell/octeontx2/af/npc.h b/drivers/net/ethernet/marvell/octeontx2/af/npc.h new file mode 100644 index 000000000..aaff91bc7 --- /dev/null +++ b/drivers/net/ethernet/marvell/octeontx2/af/npc.h @@ -0,0 +1,626 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* Marvell RVU Admin Function driver + * + * Copyright (C) 2018 Marvell. + * + */ + +#ifndef NPC_H +#define NPC_H + +#define NPC_KEX_CHAN_MASK 0xFFFULL + +#define SET_KEX_LD(intf, lid, ltype, ld, cfg) \ + rvu_write64(rvu, blkaddr, \ + NPC_AF_INTFX_LIDX_LTX_LDX_CFG(intf, lid, ltype, ld), cfg) + +#define SET_KEX_LDFLAGS(intf, ld, flags, cfg) \ + rvu_write64(rvu, blkaddr, \ + NPC_AF_INTFX_LDATAX_FLAGSX_CFG(intf, ld, flags), cfg) + +enum NPC_LID_E { + NPC_LID_LA = 0, + NPC_LID_LB, + NPC_LID_LC, + NPC_LID_LD, + NPC_LID_LE, + NPC_LID_LF, + NPC_LID_LG, + NPC_LID_LH, +}; + +#define NPC_LT_NA 0 + +enum npc_kpu_la_ltype { + NPC_LT_LA_8023 = 1, + NPC_LT_LA_ETHER, + NPC_LT_LA_IH_NIX_ETHER, + NPC_LT_LA_HIGIG2_ETHER = 7, + NPC_LT_LA_IH_NIX_HIGIG2_ETHER, + NPC_LT_LA_CUSTOM_L2_90B_ETHER, + NPC_LT_LA_CPT_HDR, + NPC_LT_LA_CUSTOM_L2_24B_ETHER, + NPC_LT_LA_CUSTOM_PRE_L2_ETHER, + NPC_LT_LA_CUSTOM0 = 0xE, + NPC_LT_LA_CUSTOM1 = 0xF, +}; + +enum npc_kpu_lb_ltype { + NPC_LT_LB_ETAG = 1, + NPC_LT_LB_CTAG, + NPC_LT_LB_STAG_QINQ, + NPC_LT_LB_BTAG, + NPC_LT_LB_PPPOE, + NPC_LT_LB_DSA, + NPC_LT_LB_DSA_VLAN, + NPC_LT_LB_EDSA, + NPC_LT_LB_EDSA_VLAN, + NPC_LT_LB_EXDSA, + NPC_LT_LB_EXDSA_VLAN, + NPC_LT_LB_FDSA, + NPC_LT_LB_VLAN_EXDSA, + NPC_LT_LB_CUSTOM0 = 0xE, + NPC_LT_LB_CUSTOM1 = 0xF, +}; + +enum npc_kpu_lc_ltype { + NPC_LT_LC_IP = 1, + NPC_LT_LC_IP_OPT, + NPC_LT_LC_IP6, + NPC_LT_LC_IP6_EXT, + NPC_LT_LC_ARP, + NPC_LT_LC_RARP, + NPC_LT_LC_MPLS, + NPC_LT_LC_NSH, + NPC_LT_LC_PTP, + NPC_LT_LC_FCOE, + NPC_LT_LC_NGIO, + NPC_LT_LC_CUSTOM0 = 0xE, + NPC_LT_LC_CUSTOM1 = 0xF, +}; + +/* Don't modify Ltypes upto SCTP, otherwise it will + * effect flow tag calculation and thus RSS. + */ +enum npc_kpu_ld_ltype { + NPC_LT_LD_TCP = 1, + NPC_LT_LD_UDP, + NPC_LT_LD_ICMP, + NPC_LT_LD_SCTP, + NPC_LT_LD_ICMP6, + NPC_LT_LD_CUSTOM0, + NPC_LT_LD_CUSTOM1, + NPC_LT_LD_IGMP = 8, + NPC_LT_LD_AH, + NPC_LT_LD_GRE, + NPC_LT_LD_NVGRE, + NPC_LT_LD_NSH, + NPC_LT_LD_TU_MPLS_IN_NSH, + NPC_LT_LD_TU_MPLS_IN_IP, +}; + +enum npc_kpu_le_ltype { + NPC_LT_LE_VXLAN = 1, + NPC_LT_LE_GENEVE, + NPC_LT_LE_ESP, + NPC_LT_LE_GTPU = 4, + NPC_LT_LE_VXLANGPE, + NPC_LT_LE_GTPC, + NPC_LT_LE_NSH, + NPC_LT_LE_TU_MPLS_IN_GRE, + NPC_LT_LE_TU_NSH_IN_GRE, + NPC_LT_LE_TU_MPLS_IN_UDP, + NPC_LT_LE_CUSTOM0 = 0xE, + NPC_LT_LE_CUSTOM1 = 0xF, +}; + +enum npc_kpu_lf_ltype { + NPC_LT_LF_TU_ETHER = 1, + NPC_LT_LF_TU_PPP, + NPC_LT_LF_TU_MPLS_IN_VXLANGPE, + NPC_LT_LF_TU_NSH_IN_VXLANGPE, + NPC_LT_LF_TU_MPLS_IN_NSH, + NPC_LT_LF_TU_3RD_NSH, + NPC_LT_LF_CUSTOM0 = 0xE, + NPC_LT_LF_CUSTOM1 = 0xF, +}; + +enum npc_kpu_lg_ltype { + NPC_LT_LG_TU_IP = 1, + NPC_LT_LG_TU_IP6, + NPC_LT_LG_TU_ARP, + NPC_LT_LG_TU_ETHER_IN_NSH, + NPC_LT_LG_CUSTOM0 = 0xE, + NPC_LT_LG_CUSTOM1 = 0xF, +}; + +/* Don't modify Ltypes upto SCTP, otherwise it will + * effect flow tag calculation and thus RSS. + */ +enum npc_kpu_lh_ltype { + NPC_LT_LH_TU_TCP = 1, + NPC_LT_LH_TU_UDP, + NPC_LT_LH_TU_ICMP, + NPC_LT_LH_TU_SCTP, + NPC_LT_LH_TU_ICMP6, + NPC_LT_LH_TU_IGMP = 8, + NPC_LT_LH_TU_ESP, + NPC_LT_LH_TU_AH, + NPC_LT_LH_CUSTOM0 = 0xE, + NPC_LT_LH_CUSTOM1 = 0xF, +}; + +/* NPC port kind defines how the incoming or outgoing packets + * are processed. NPC accepts packets from up to 64 pkinds. + * Software assigns pkind for each incoming port such as CGX + * Ethernet interfaces, LBK interfaces, etc. + */ +#define NPC_UNRESERVED_PKIND_COUNT NPC_RX_CUSTOM_PRE_L2_PKIND + +enum npc_pkind_type { + NPC_RX_LBK_PKIND = 0ULL, + NPC_RX_CUSTOM_PRE_L2_PKIND = 55ULL, + NPC_RX_VLAN_EXDSA_PKIND = 56ULL, + NPC_RX_CHLEN24B_PKIND = 57ULL, + NPC_RX_CPT_HDR_PKIND, + NPC_RX_CHLEN90B_PKIND, + NPC_TX_HIGIG_PKIND, + NPC_RX_HIGIG_PKIND, + NPC_RX_EDSA_PKIND, + NPC_TX_DEF_PKIND, /* NIX-TX PKIND */ +}; + +enum npc_interface_type { + NPC_INTF_MODE_DEF, +}; + +/* list of known and supported fields in packet header and + * fields present in key structure. + */ +enum key_fields { + NPC_DMAC, + NPC_SMAC, + NPC_ETYPE, + NPC_VLAN_ETYPE_CTAG, /* 0x8100 */ + NPC_VLAN_ETYPE_STAG, /* 0x88A8 */ + NPC_OUTER_VID, + NPC_TOS, + NPC_SIP_IPV4, + NPC_DIP_IPV4, + NPC_SIP_IPV6, + NPC_DIP_IPV6, + NPC_IPPROTO_TCP, + NPC_IPPROTO_UDP, + NPC_IPPROTO_SCTP, + NPC_IPPROTO_AH, + NPC_IPPROTO_ESP, + NPC_IPPROTO_ICMP, + NPC_IPPROTO_ICMP6, + NPC_SPORT_TCP, + NPC_DPORT_TCP, + NPC_SPORT_UDP, + NPC_DPORT_UDP, + NPC_SPORT_SCTP, + NPC_DPORT_SCTP, + NPC_HEADER_FIELDS_MAX, + NPC_CHAN = NPC_HEADER_FIELDS_MAX, /* Valid when Rx */ + NPC_PF_FUNC, /* Valid when Tx */ + NPC_ERRLEV, + NPC_ERRCODE, + NPC_LXMB, + NPC_EXACT_RESULT, + NPC_LA, + NPC_LB, + NPC_LC, + NPC_LD, + NPC_LE, + NPC_LF, + NPC_LG, + NPC_LH, + /* Ethertype for untagged frame */ + NPC_ETYPE_ETHER, + /* Ethertype for single tagged frame */ + NPC_ETYPE_TAG1, + /* Ethertype for double tagged frame */ + NPC_ETYPE_TAG2, + /* outer vlan tci for single tagged frame */ + NPC_VLAN_TAG1, + /* outer vlan tci for double tagged frame */ + NPC_VLAN_TAG2, + /* other header fields programmed to extract but not of our interest */ + NPC_UNKNOWN, + NPC_KEY_FIELDS_MAX, +}; + +struct npc_kpu_profile_cam { + u8 state; + u8 state_mask; + u16 dp0; + u16 dp0_mask; + u16 dp1; + u16 dp1_mask; + u16 dp2; + u16 dp2_mask; +} __packed; + +struct npc_kpu_profile_action { + u8 errlev; + u8 errcode; + u8 dp0_offset; + u8 dp1_offset; + u8 dp2_offset; + u8 bypass_count; + u8 parse_done; + u8 next_state; + u8 ptr_advance; + u8 cap_ena; + u8 lid; + u8 ltype; + u8 flags; + u8 offset; + u8 mask; + u8 right; + u8 shift; +} __packed; + +struct npc_kpu_profile { + int cam_entries; + int action_entries; + struct npc_kpu_profile_cam *cam; + struct npc_kpu_profile_action *action; +}; + +/* NPC KPU register formats */ +struct npc_kpu_cam { +#if defined(__BIG_ENDIAN_BITFIELD) + u64 rsvd_63_56 : 8; + u64 state : 8; + u64 dp2_data : 16; + u64 dp1_data : 16; + u64 dp0_data : 16; +#else + u64 dp0_data : 16; + u64 dp1_data : 16; + u64 dp2_data : 16; + u64 state : 8; + u64 rsvd_63_56 : 8; +#endif +}; + +struct npc_kpu_action0 { +#if defined(__BIG_ENDIAN_BITFIELD) + u64 rsvd_63_57 : 7; + u64 byp_count : 3; + u64 capture_ena : 1; + u64 parse_done : 1; + u64 next_state : 8; + u64 rsvd_43 : 1; + u64 capture_lid : 3; + u64 capture_ltype : 4; + u64 capture_flags : 8; + u64 ptr_advance : 8; + u64 var_len_offset : 8; + u64 var_len_mask : 8; + u64 var_len_right : 1; + u64 var_len_shift : 3; +#else + u64 var_len_shift : 3; + u64 var_len_right : 1; + u64 var_len_mask : 8; + u64 var_len_offset : 8; + u64 ptr_advance : 8; + u64 capture_flags : 8; + u64 capture_ltype : 4; + u64 capture_lid : 3; + u64 rsvd_43 : 1; + u64 next_state : 8; + u64 parse_done : 1; + u64 capture_ena : 1; + u64 byp_count : 3; + u64 rsvd_63_57 : 7; +#endif +}; + +struct npc_kpu_action1 { +#if defined(__BIG_ENDIAN_BITFIELD) + u64 rsvd_63_36 : 28; + u64 errlev : 4; + u64 errcode : 8; + u64 dp2_offset : 8; + u64 dp1_offset : 8; + u64 dp0_offset : 8; +#else + u64 dp0_offset : 8; + u64 dp1_offset : 8; + u64 dp2_offset : 8; + u64 errcode : 8; + u64 errlev : 4; + u64 rsvd_63_36 : 28; +#endif +}; + +struct npc_kpu_pkind_cpi_def { +#if defined(__BIG_ENDIAN_BITFIELD) + u64 ena : 1; + u64 rsvd_62_59 : 4; + u64 lid : 3; + u64 ltype_match : 4; + u64 ltype_mask : 4; + u64 flags_match : 8; + u64 flags_mask : 8; + u64 add_offset : 8; + u64 add_mask : 8; + u64 rsvd_15 : 1; + u64 add_shift : 3; + u64 rsvd_11_10 : 2; + u64 cpi_base : 10; +#else + u64 cpi_base : 10; + u64 rsvd_11_10 : 2; + u64 add_shift : 3; + u64 rsvd_15 : 1; + u64 add_mask : 8; + u64 add_offset : 8; + u64 flags_mask : 8; + u64 flags_match : 8; + u64 ltype_mask : 4; + u64 ltype_match : 4; + u64 lid : 3; + u64 rsvd_62_59 : 4; + u64 ena : 1; +#endif +}; + +struct nix_rx_action { +#if defined(__BIG_ENDIAN_BITFIELD) + u64 rsvd_63_61 :3; + u64 flow_key_alg :5; + u64 match_id :16; + u64 index :20; + u64 pf_func :16; + u64 op :4; +#else + u64 op :4; + u64 pf_func :16; + u64 index :20; + u64 match_id :16; + u64 flow_key_alg :5; + u64 rsvd_63_61 :3; +#endif +}; + +/* NPC_AF_INTFX_KEX_CFG field masks */ +#define NPC_EXACT_NIBBLE_START 40 +#define NPC_EXACT_NIBBLE_END 43 +#define NPC_EXACT_NIBBLE GENMASK_ULL(43, 40) + +/* NPC_EXACT_KEX_S nibble definitions for each field */ +#define NPC_EXACT_NIBBLE_HIT BIT_ULL(40) +#define NPC_EXACT_NIBBLE_OPC BIT_ULL(40) +#define NPC_EXACT_NIBBLE_WAY BIT_ULL(40) +#define NPC_EXACT_NIBBLE_INDEX GENMASK_ULL(43, 41) + +#define NPC_EXACT_RESULT_HIT BIT_ULL(0) +#define NPC_EXACT_RESULT_OPC GENMASK_ULL(2, 1) +#define NPC_EXACT_RESULT_WAY GENMASK_ULL(4, 3) +#define NPC_EXACT_RESULT_IDX GENMASK_ULL(15, 5) + +/* NPC_AF_INTFX_KEX_CFG field masks */ +#define NPC_PARSE_NIBBLE GENMASK_ULL(30, 0) + +/* NPC_PARSE_KEX_S nibble definitions for each field */ +#define NPC_PARSE_NIBBLE_CHAN GENMASK_ULL(2, 0) +#define NPC_PARSE_NIBBLE_ERRLEV BIT_ULL(3) +#define NPC_PARSE_NIBBLE_ERRCODE GENMASK_ULL(5, 4) +#define NPC_PARSE_NIBBLE_L2L3_BCAST BIT_ULL(6) +#define NPC_PARSE_NIBBLE_LA_FLAGS GENMASK_ULL(8, 7) +#define NPC_PARSE_NIBBLE_LA_LTYPE BIT_ULL(9) +#define NPC_PARSE_NIBBLE_LB_FLAGS GENMASK_ULL(11, 10) +#define NPC_PARSE_NIBBLE_LB_LTYPE BIT_ULL(12) +#define NPC_PARSE_NIBBLE_LC_FLAGS GENMASK_ULL(14, 13) +#define NPC_PARSE_NIBBLE_LC_LTYPE BIT_ULL(15) +#define NPC_PARSE_NIBBLE_LD_FLAGS GENMASK_ULL(17, 16) +#define NPC_PARSE_NIBBLE_LD_LTYPE BIT_ULL(18) +#define NPC_PARSE_NIBBLE_LE_FLAGS GENMASK_ULL(20, 19) +#define NPC_PARSE_NIBBLE_LE_LTYPE BIT_ULL(21) +#define NPC_PARSE_NIBBLE_LF_FLAGS GENMASK_ULL(23, 22) +#define NPC_PARSE_NIBBLE_LF_LTYPE BIT_ULL(24) +#define NPC_PARSE_NIBBLE_LG_FLAGS GENMASK_ULL(26, 25) +#define NPC_PARSE_NIBBLE_LG_LTYPE BIT_ULL(27) +#define NPC_PARSE_NIBBLE_LH_FLAGS GENMASK_ULL(29, 28) +#define NPC_PARSE_NIBBLE_LH_LTYPE BIT_ULL(30) + +struct nix_tx_action { +#if defined(__BIG_ENDIAN_BITFIELD) + u64 rsvd_63_48 :16; + u64 match_id :16; + u64 index :20; + u64 rsvd_11_8 :8; + u64 op :4; +#else + u64 op :4; + u64 rsvd_11_8 :8; + u64 index :20; + u64 match_id :16; + u64 rsvd_63_48 :16; +#endif +}; + +/* NIX Receive Vtag Action Structure */ +#define RX_VTAG0_VALID_BIT BIT_ULL(15) +#define RX_VTAG0_TYPE_MASK GENMASK_ULL(14, 12) +#define RX_VTAG0_LID_MASK GENMASK_ULL(10, 8) +#define RX_VTAG0_RELPTR_MASK GENMASK_ULL(7, 0) +#define RX_VTAG1_VALID_BIT BIT_ULL(47) +#define RX_VTAG1_TYPE_MASK GENMASK_ULL(46, 44) +#define RX_VTAG1_LID_MASK GENMASK_ULL(42, 40) +#define RX_VTAG1_RELPTR_MASK GENMASK_ULL(39, 32) + +/* NIX Transmit Vtag Action Structure */ +#define TX_VTAG0_DEF_MASK GENMASK_ULL(25, 16) +#define TX_VTAG0_OP_MASK GENMASK_ULL(13, 12) +#define TX_VTAG0_LID_MASK GENMASK_ULL(10, 8) +#define TX_VTAG0_RELPTR_MASK GENMASK_ULL(7, 0) +#define TX_VTAG1_DEF_MASK GENMASK_ULL(57, 48) +#define TX_VTAG1_OP_MASK GENMASK_ULL(45, 44) +#define TX_VTAG1_LID_MASK GENMASK_ULL(42, 40) +#define TX_VTAG1_RELPTR_MASK GENMASK_ULL(39, 32) + +/* NPC MCAM reserved entry index per nixlf */ +#define NIXLF_UCAST_ENTRY 0 +#define NIXLF_BCAST_ENTRY 1 +#define NIXLF_ALLMULTI_ENTRY 2 +#define NIXLF_PROMISC_ENTRY 3 + +struct npc_coalesced_kpu_prfl { +#define NPC_SIGN 0x00666f727063706e +#define NPC_PRFL_NAME "npc_prfls_array" +#define NPC_NAME_LEN 32 + __le64 signature; /* "npcprof\0" (8 bytes/ASCII characters) */ + u8 name[NPC_NAME_LEN]; /* KPU Profile name */ + u64 version; /* KPU firmware/profile version */ + u8 num_prfl; /* No of NPC profiles. */ + u16 prfl_sz[]; +}; + +struct npc_mcam_kex { + /* MKEX Profle Header */ + u64 mkex_sign; /* "mcam-kex-profile" (8 bytes/ASCII characters) */ + u8 name[MKEX_NAME_LEN]; /* MKEX Profile name */ + u64 cpu_model; /* Format as profiled by CPU hardware */ + u64 kpu_version; /* KPU firmware/profile version */ + u64 reserved; /* Reserved for extension */ + + /* MKEX Profle Data */ + u64 keyx_cfg[NPC_MAX_INTF]; /* NPC_AF_INTF(0..1)_KEX_CFG */ + /* NPC_AF_KEX_LDATA(0..1)_FLAGS_CFG */ + u64 kex_ld_flags[NPC_MAX_LD]; + /* NPC_AF_INTF(0..1)_LID(0..7)_LT(0..15)_LD(0..1)_CFG */ + u64 intf_lid_lt_ld[NPC_MAX_INTF][NPC_MAX_LID][NPC_MAX_LT][NPC_MAX_LD]; + /* NPC_AF_INTF(0..1)_LDATA(0..1)_FLAGS(0..15)_CFG */ + u64 intf_ld_flags[NPC_MAX_INTF][NPC_MAX_LD][NPC_MAX_LFL]; +} __packed; + +struct npc_kpu_fwdata { + int entries; + /* What follows is: + * struct npc_kpu_profile_cam[entries]; + * struct npc_kpu_profile_action[entries]; + */ + u8 data[]; +} __packed; + +struct npc_lt_def { + u8 ltype_mask; + u8 ltype_match; + u8 lid; +} __packed; + +struct npc_lt_def_ipsec { + u8 ltype_mask; + u8 ltype_match; + u8 lid; + u8 spi_offset; + u8 spi_nz; +} __packed; + +struct npc_lt_def_apad { + u8 ltype_mask; + u8 ltype_match; + u8 lid; + u8 valid; +} __packed; + +struct npc_lt_def_color { + u8 ltype_mask; + u8 ltype_match; + u8 lid; + u8 noffset; + u8 offset; +} __packed; + +struct npc_lt_def_et { + u8 ltype_mask; + u8 ltype_match; + u8 lid; + u8 valid; + u8 offset; +} __packed; + +struct npc_lt_def_cfg { + struct npc_lt_def rx_ol2; + struct npc_lt_def rx_oip4; + struct npc_lt_def rx_iip4; + struct npc_lt_def rx_oip6; + struct npc_lt_def rx_iip6; + struct npc_lt_def rx_otcp; + struct npc_lt_def rx_itcp; + struct npc_lt_def rx_oudp; + struct npc_lt_def rx_iudp; + struct npc_lt_def rx_osctp; + struct npc_lt_def rx_isctp; + struct npc_lt_def_ipsec rx_ipsec[2]; + struct npc_lt_def pck_ol2; + struct npc_lt_def pck_oip4; + struct npc_lt_def pck_oip6; + struct npc_lt_def pck_iip4; + struct npc_lt_def_apad rx_apad0; + struct npc_lt_def_apad rx_apad1; + struct npc_lt_def_color ovlan; + struct npc_lt_def_color ivlan; + struct npc_lt_def_color rx_gen0_color; + struct npc_lt_def_color rx_gen1_color; + struct npc_lt_def_et rx_et[2]; +} __packed; + +/* Loadable KPU profile firmware data */ +struct npc_kpu_profile_fwdata { +#define KPU_SIGN 0x00666f727075706b +#define KPU_NAME_LEN 32 +/** Maximum number of custom KPU entries supported by the built-in profile. */ +#define KPU_MAX_CST_ENT 6 + /* KPU Profle Header */ + __le64 signature; /* "kpuprof\0" (8 bytes/ASCII characters) */ + u8 name[KPU_NAME_LEN]; /* KPU Profile name */ + __le64 version; /* KPU profile version */ + u8 kpus; + u8 reserved[7]; + + /* Default MKEX profile to be used with this KPU profile. May be + * overridden with mkex_profile module parameter. Format is same as for + * the MKEX profile to streamline processing. + */ + struct npc_mcam_kex mkex; + /* LTYPE values for specific HW offloaded protocols. */ + struct npc_lt_def_cfg lt_def; + /* Dynamically sized data: + * Custom KPU CAM and ACTION configuration entries. + * struct npc_kpu_fwdata kpu[kpus]; + */ + u8 data[]; +} __packed; + +struct rvu_npc_mcam_rule { + struct flow_msg packet; + struct flow_msg mask; + u8 intf; + union { + struct nix_tx_action tx_action; + struct nix_rx_action rx_action; + }; + u64 vtag_action; + struct list_head list; + u64 features; + u16 owner; + u16 entry; + u16 cntr; + bool has_cntr; + u8 default_rule; + bool enable; + bool vfvlan_cfg; + u16 chan; + u16 chan_mask; + u8 lxmb; +}; + +#endif /* NPC_H */ diff --git a/drivers/net/ethernet/marvell/octeontx2/af/npc_profile.h b/drivers/net/ethernet/marvell/octeontx2/af/npc_profile.h new file mode 100644 index 000000000..a820bad3a --- /dev/null +++ b/drivers/net/ethernet/marvell/octeontx2/af/npc_profile.h @@ -0,0 +1,15266 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* Marvell RVU Admin Function driver + * + * Copyright (C) 2018 Marvell. + * + */ + +#ifndef NPC_PROFILE_H +#define NPC_PROFILE_H + +#define NPC_KPU_PROFILE_VER 0x0000000100070000 +#define NPC_KPU_VER_MAJ(ver) ((u16)(((ver) >> 32) & 0xFFFF)) +#define NPC_KPU_VER_MIN(ver) ((u16)(((ver) >> 16) & 0xFFFF)) +#define NPC_KPU_VER_PATCH(ver) ((u16)((ver) & 0xFFFF)) + +#define NPC_IH_W 0x8000 +#define NPC_IH_UTAG 0x2000 + +#define NPC_ETYPE_IP 0x0800 +#define NPC_ETYPE_IP6 0x86dd +#define NPC_ETYPE_ARP 0x0806 +#define NPC_ETYPE_RARP 0x8035 +#define NPC_ETYPE_NGIO 0x8842 +#define NPC_ETYPE_MPLSU 0x8847 +#define NPC_ETYPE_MPLSM 0x8848 +#define NPC_ETYPE_ETAG 0x893f +#define NPC_ETYPE_CTAG 0x8100 +#define NPC_ETYPE_SBTAG 0x88a8 +#define NPC_ETYPE_ITAG 0x88e7 +#define NPC_ETYPE_PTP 0x88f7 +#define NPC_ETYPE_FCOE 0x8906 +#define NPC_ETYPE_QINQ 0x9100 +#define NPC_ETYPE_TRANS_ETH_BR 0x6558 +#define NPC_ETYPE_PPP 0x880b +#define NPC_ETYPE_NSH 0x894f +#define NPC_ETYPE_DSA 0xdada +#define NPC_ETYPE_PPPOE 0x8864 + +#define NPC_PPP_IP 0x0021 +#define NPC_PPP_IP6 0x0057 + +#define NPC_IPNH_HOP 0 +#define NPC_IPNH_ICMP 1 +#define NPC_IPNH_IGMP 2 +#define NPC_IPNH_IP 4 +#define NPC_IPNH_TCP 6 +#define NPC_IPNH_UDP 17 +#define NPC_IPNH_IP6 41 +#define NPC_IPNH_ROUT 43 +#define NPC_IPNH_FRAG 44 +#define NPC_IPNH_GRE 47 +#define NPC_IPNH_ESP 50 +#define NPC_IPNH_AH 51 +#define NPC_IPNH_ICMP6 58 +#define NPC_IPNH_NONH 59 +#define NPC_IPNH_DEST 60 +#define NPC_IPNH_SCTP 132 +#define NPC_IPNH_MOBILITY 135 +#define NPC_IPNH_MPLS 137 +#define NPC_IPNH_HOSTID 139 +#define NPC_IPNH_SHIM6 140 + +#define NPC_UDP_PORT_PTP_E 319 +#define NPC_UDP_PORT_PTP_G 320 +#define NPC_UDP_PORT_GTPC 2123 +#define NPC_UDP_PORT_GTPU 2152 +#define NPC_UDP_PORT_VXLAN 4789 +#define NPC_UDP_PORT_VXLANGPE 4790 +#define NPC_UDP_PORT_GENEVE 6081 +#define NPC_UDP_PORT_MPLS 6635 +#define NPC_UDP_PORT_ESP 4500 + +#define NPC_VXLANGPE_NP_IP 0x1 +#define NPC_VXLANGPE_NP_IP6 0x2 +#define NPC_VXLANGPE_NP_ETH 0x3 +#define NPC_VXLANGPE_NP_NSH 0x4 +#define NPC_VXLANGPE_NP_MPLS 0x5 +#define NPC_VXLANGPE_NP_GBP 0x6 +#define NPC_VXLANGPE_NP_VBNG 0x7 + +#define NPC_NSH_NP_IP 0x1 +#define NPC_NSH_NP_IP6 0x2 +#define NPC_NSH_NP_ETH 0x3 +#define NPC_NSH_NP_NSH 0x4 +#define NPC_NSH_NP_MPLS 0x5 + +#define NPC_TCP_PORT_HTTP 80 +#define NPC_TCP_PORT_HTTPS 443 +#define NPC_TCP_PORT_PPTP 1723 + +#define NPC_MPLS_S 0x0100 + +#define NPC_IP_TTL_MASK 0xff00 +#define NPC_IP_VER_4 0x4000 +#define NPC_IP_VER_6 0x6000 +#define NPC_IP_VER_MASK 0xf000 +#define NPC_IP_HDR_LEN_5 0x0500 +#define NPC_IP_HDR_LEN_MASK 0x0f00 +#define NPC_IP_HDR_MF 0x2000 +#define NPC_IP_HDR_FRAGOFF 0x1fff + +#define NPC_IP6_HOP_MASK 0x00ff +#define NPC_IP6_FRAG_FRAGOFF 0xfff8 + +#define NPC_GRE_F_CSUM (0x1 << 15) +#define NPC_GRE_F_ROUTE (0x1 << 14) +#define NPC_GRE_F_KEY (0x1 << 13) +#define NPC_GRE_F_SEQ (0x1 << 12) +#define NPC_GRE_F_ACK (0x1 << 7) +#define NPC_GRE_FLAG_MASK (NPC_GRE_F_CSUM | NPC_GRE_F_ROUTE | \ + NPC_GRE_F_KEY | NPC_GRE_F_SEQ | NPC_GRE_F_ACK) +#define NPC_GRE_VER_MASK 0x0003 +#define NPC_GRE_VER_1 0x0001 + +#define NPC_VXLAN_I 0x0800 + +#define NPC_VXLANGPE_VER (0x3 << 12) +#define NPC_VXLANGPE_I (0x1 << 11) +#define NPC_VXLANGPE_P (0x1 << 10) +#define NPC_VXLANGPE_B (0x1 << 9) +#define NPC_VXLANGPE_NP_MASK 0x00ff + +#define NPC_NSH_NP_MASK 0x00ff + +#define NPC_GENEVE_F_OAM (0x1 << 7) +#define NPC_GENEVE_F_CRI_OPT (0x1 << 6) + +#define NPC_GTP_PT_GTP (0x1 << 12) +#define NPC_GTP_PT_MASK (0x1 << 12) +#define NPC_GTP_VER1 (0x1 << 13) +#define NPC_GTP_VER_MASK (0x7 << 13) +#define NPC_GTP_MT_G_PDU 0xff +#define NPC_GTP_MT_MASK 0xff + +#define NPC_TCP_FLAGS_FIN 0x0001 +#define NPC_TCP_FLAGS_SYN 0x0002 +#define NPC_TCP_FLAGS_RST 0x0004 +#define NPC_TCP_FLAGS_PSH 0x0008 +#define NPC_TCP_FLAGS_ACK 0x0010 +#define NPC_TCP_FLAGS_URG 0x0020 +#define NPC_TCP_FLAGS_MASK 0x003f + +#define NPC_TCP_DATA_OFFSET_5 0x5000 +#define NPC_TCP_DATA_OFFSET_MASK 0xf000 + +#define NPC_DSA_EXTEND 0x1000 +#define NPC_DSA_EDSA 0x8000 +#define NPC_DSA_FDSA 0xc000 + +#define NPC_KEXOF_DMAC 9 +#define MKEX_SIGN 0x19bbfdbd15f +#define KEX_LD_CFG(bytesm1, hdr_ofs, ena, flags_ena, key_ofs) \ + (((bytesm1) << 16) | ((hdr_ofs) << 8) | ((ena) << 7) | \ + ((flags_ena) << 6) | ((key_ofs) & 0x3F)) + +/* Rx parse key extract nibble enable */ +#define NPC_PARSE_NIBBLE_INTF_RX (NPC_PARSE_NIBBLE_CHAN | \ + NPC_PARSE_NIBBLE_L2L3_BCAST | \ + NPC_PARSE_NIBBLE_LA_LTYPE | \ + NPC_PARSE_NIBBLE_LB_LTYPE | \ + NPC_PARSE_NIBBLE_LC_LTYPE | \ + NPC_PARSE_NIBBLE_LD_LTYPE | \ + NPC_PARSE_NIBBLE_LE_LTYPE) +/* Tx parse key extract nibble enable */ +#define NPC_PARSE_NIBBLE_INTF_TX (NPC_PARSE_NIBBLE_LA_LTYPE | \ + NPC_PARSE_NIBBLE_LB_LTYPE | \ + NPC_PARSE_NIBBLE_LC_LTYPE | \ + NPC_PARSE_NIBBLE_LD_LTYPE | \ + NPC_PARSE_NIBBLE_LE_LTYPE) + +enum npc_kpu_parser_state { + NPC_S_NA = 0, + NPC_S_KPU1_ETHER, + NPC_S_KPU1_IH_NIX, + NPC_S_KPU1_IH, + NPC_S_KPU1_EXDSA, + NPC_S_KPU1_HIGIG2, + NPC_S_KPU1_IH_NIX_HIGIG2, + NPC_S_KPU1_CUSTOM_PRE_L2, + NPC_S_KPU1_CPT_HDR, + NPC_S_KPU1_VLAN_EXDSA, + NPC_S_KPU2_CTAG, + NPC_S_KPU2_CTAG2, + NPC_S_KPU2_SBTAG, + NPC_S_KPU2_QINQ, + NPC_S_KPU2_ETAG, + NPC_S_KPU2_EXDSA, + NPC_S_KPU2_CPT_CTAG, + NPC_S_KPU2_CPT_QINQ, + NPC_S_KPU3_CTAG, + NPC_S_KPU3_STAG, + NPC_S_KPU3_QINQ, + NPC_S_KPU3_CTAG_C, + NPC_S_KPU3_STAG_C, + NPC_S_KPU3_QINQ_C, + NPC_S_KPU3_DSA, + NPC_S_KPU3_VLAN_EXDSA, + NPC_S_KPU4_MPLS, + NPC_S_KPU4_NSH, + NPC_S_KPU4_FDSA, + NPC_S_KPU4_VLAN_EXDSA, + NPC_S_KPU4_PPPOE, + NPC_S_KPU5_IP, + NPC_S_KPU5_IP6, + NPC_S_KPU5_ARP, + NPC_S_KPU5_RARP, + NPC_S_KPU5_PTP, + NPC_S_KPU5_FCOE, + NPC_S_KPU5_MPLS, + NPC_S_KPU5_MPLS_PL, + NPC_S_KPU5_NSH, + NPC_S_KPU5_CPT_IP, + NPC_S_KPU5_CPT_IP6, + NPC_S_KPU5_NGIO, + NPC_S_KPU6_IP6_EXT, + NPC_S_KPU6_IP6_HOP_DEST, + NPC_S_KPU6_IP6_ROUT, + NPC_S_KPU6_IP6_FRAG, + NPC_S_KPU6_IP6_CPT_FRAG, + NPC_S_KPU6_IP6_CPT_HOP_DEST, + NPC_S_KPU6_IP6_CPT_ROUT, + NPC_S_KPU7_IP6_EXT, + NPC_S_KPU7_IP6_ROUT, + NPC_S_KPU7_IP6_FRAG, + NPC_S_KPU7_CPT_IP6_FRAG, + NPC_S_KPU8_TCP, + NPC_S_KPU8_UDP, + NPC_S_KPU8_SCTP, + NPC_S_KPU8_ICMP, + NPC_S_KPU8_IGMP, + NPC_S_KPU8_ICMP6, + NPC_S_KPU8_GRE, + NPC_S_KPU8_AH, + NPC_S_KPU9_TU_MPLS_IN_GRE, + NPC_S_KPU9_TU_MPLS_IN_NSH, + NPC_S_KPU9_TU_MPLS_IN_IP, + NPC_S_KPU9_TU_MPLS_IN_UDP, + NPC_S_KPU9_TU_NSH_IN_GRE, + NPC_S_KPU9_VXLAN, + NPC_S_KPU9_VXLANGPE, + NPC_S_KPU9_GENEVE, + NPC_S_KPU9_GTPC, + NPC_S_KPU9_GTPU, + NPC_S_KPU9_ESP, + NPC_S_KPU10_TU_MPLS_IN_VXLANGPE, + NPC_S_KPU10_TU_MPLS_PL, + NPC_S_KPU10_TU_MPLS, + NPC_S_KPU10_TU_NSH_IN_VXLANGPE, + NPC_S_KPU11_TU_ETHER, + NPC_S_KPU11_TU_PPP, + NPC_S_KPU11_TU_MPLS_IN_NSH, + NPC_S_KPU11_TU_MPLS_PL, + NPC_S_KPU11_TU_MPLS, + NPC_S_KPU11_TU_ETHER_IN_NSH, + NPC_S_KPU12_TU_IP, + NPC_S_KPU12_TU_IP6, + NPC_S_KPU12_TU_ARP, + NPC_S_KPU13_TU_IP6_EXT, + NPC_S_KPU14_TU_IP6_EXT, + NPC_S_KPU15_TU_TCP, + NPC_S_KPU15_TU_UDP, + NPC_S_KPU15_TU_SCTP, + NPC_S_KPU15_TU_ICMP, + NPC_S_KPU15_TU_IGMP, + NPC_S_KPU15_TU_ICMP6, + NPC_S_KPU15_TU_ESP, + NPC_S_KPU15_TU_AH, + NPC_S_KPU16_HTTP_DATA, + NPC_S_KPU16_HTTPS_DATA, + NPC_S_KPU16_PPTP_DATA, + NPC_S_KPU16_TCP_DATA, + NPC_S_KPU16_UDP_DATA, + NPC_S_KPU16_UDP_PTP, + NPC_S_LAST /* has to be the last item */ +}; + +enum npc_kpu_la_uflag { + NPC_F_LA_U_HAS_TAG = 0x10, + NPC_F_LA_U_HAS_IH_NIX = 0x20, + NPC_F_LA_U_HAS_HIGIG2 = 0x40, +}; +enum npc_kpu_la_lflag { + NPC_F_LA_L_UNK_ETYPE = 1, + NPC_F_LA_L_WITH_VLAN, + NPC_F_LA_L_WITH_ETAG, + NPC_F_LA_L_WITH_MPLS, + NPC_F_LA_L_WITH_NSH, +}; + +enum npc_kpu_lb_uflag { + NPC_F_LB_U_UNK_ETYPE = 0x80, + NPC_F_LB_U_MORE_TAG = 0x40, +}; +enum npc_kpu_lb_lflag { + NPC_F_LB_L_WITH_CTAG = 1, + NPC_F_LB_L_WITH_CTAG_UNK, + NPC_F_LB_L_WITH_STAG_CTAG, + NPC_F_LB_L_WITH_STAG_STAG, + NPC_F_LB_L_WITH_QINQ_CTAG, + NPC_F_LB_L_WITH_QINQ_QINQ, + NPC_F_LB_L_WITH_ITAG, + NPC_F_LB_L_WITH_ITAG_STAG, + NPC_F_LB_L_WITH_ITAG_CTAG, + NPC_F_LB_L_WITH_ITAG_UNK, + NPC_F_LB_L_WITH_BTAG_ITAG, + NPC_F_LB_L_WITH_STAG, + NPC_F_LB_L_WITH_QINQ, + NPC_F_LB_L_DSA, + NPC_F_LB_L_DSA_VLAN, + NPC_F_LB_L_EDSA, + NPC_F_LB_L_EDSA_VLAN, + NPC_F_LB_L_EXDSA, + NPC_F_LB_L_EXDSA_VLAN, + NPC_F_LB_L_FDSA, +}; + +enum npc_kpu_lc_uflag { + NPC_F_LC_U_UNK_PROTO = 0x10, + NPC_F_LC_U_IP_FRAG = 0x20, + NPC_F_LC_U_IP6_FRAG = 0x40, +}; +enum npc_kpu_lc_lflag { + NPC_F_LC_L_IP_IN_IP = 1, + NPC_F_LC_L_6TO4, + NPC_F_LC_L_MPLS_IN_IP, + NPC_F_LC_L_IP6_TUN_IP6, + NPC_F_LC_L_IP6_MPLS_IN_IP, + NPC_F_LC_L_MPLS_4_LABELS, + NPC_F_LC_L_MPLS_3_LABELS, + NPC_F_LC_L_MPLS_2_LABELS, + NPC_F_LC_L_EXT_HOP, + NPC_F_LC_L_EXT_DEST, + NPC_F_LC_L_EXT_ROUT, + NPC_F_LC_L_EXT_MOBILITY, + NPC_F_LC_L_EXT_HOSTID, + NPC_F_LC_L_EXT_SHIM6, +}; + +enum npc_kpu_ld_lflag { + NPC_F_LD_L_TCP_UNK_PORT = 1, + NPC_F_LD_L_TCP_HAS_OPTIONS, + NPC_F_LD_L_TCP_UNK_PORT_HAS_OPTIONS, + NPC_F_LD_L_UDP_UNK_PORT, + NPC_F_LD_L_GRE_NVGRE, + NPC_F_LD_L_GRE_HAS_SRE, + NPC_F_LD_L_GRE_HAS_CSUM, + NPC_F_LD_L_GRE_HAS_KEY, + NPC_F_LD_L_GRE_HAS_SEQ, + NPC_F_LD_L_GRE_HAS_CSUM_KEY, + NPC_F_LD_L_GRE_HAS_CSUM_SEQ, + NPC_F_LD_L_GRE_HAS_KEY_SEQ, + NPC_F_LD_L_GRE_HAS_CSUM_KEY_SEQ, + NPC_F_LD_L_GRE_HAS_ROUTE, + NPC_F_LD_L_GRE_UNK_PROTO, + NPC_F_LD_L_GRE_VER1, + NPC_F_LD_L_GRE_VER1_HAS_SEQ, + NPC_F_LD_L_GRE_VER1_HAS_ACK, + NPC_F_LD_L_GRE_VER1_HAS_SEQ_ACK, + NPC_F_LD_L_GRE_VER1_UNK_PROTO, + NPC_F_LD_L_MPLS_4_LABELS, + NPC_F_LD_L_MPLS_3_LABELS, + NPC_F_LD_L_MPLS_2_LABELS, +}; + +enum npc_kpu_le_lflag { + NPC_F_LE_L_VXLAN_NOVNI, + NPC_F_LE_L_VXLANGPE_NOVNI, + NPC_F_LE_L_VXLANGPE_UNK, + NPC_F_LE_L_VXLANGPE_NONP, + NPC_F_LE_L_GENEVE_OAM, + NPC_F_LE_L_GENEVE_CRI_OPT, + NPC_F_LE_L_GENEVE_OAM_CRI_OPT, + NPC_F_LE_L_GTPU_G_PDU, + NPC_F_LE_L_GTPU_UNK, +}; + +enum npc_kpu_lf_uflag { + NPC_F_LF_U_UNK_ETYPE = 0x10, + NPC_F_LF_U_HAS_TAG = 0x20, +}; + +enum npc_kpu_lf_lflag { + NPC_F_LF_L_WITH_CTAG = 1, + NPC_F_LF_L_WITH_STAG_CTAG, + NPC_F_LF_L_WITH_STAG, + NPC_F_LF_L_WITH_QINQ_CTAG, + NPC_F_LF_L_WITH_QINQ, +}; + +enum npc_kpu_lg_uflag { + NPC_F_LG_U_UNK_IP_PROTO = 0x10, + NPC_F_LG_U_IP_HAS_OPTIONS = 0x20, + NPC_F_LG_U_IP6_HAS_EXT = 0x40, +}; + +enum npc_kpu_lh_uflag { + NPC_F_LH_U_TCP_HAS_OPTIONS = 0x80, +}; + +enum npc_kpu_lh_lflag { + NPC_F_LH_L_TCP_HTTP = 1, + NPC_F_LH_L_TCP_HTTPS, + NPC_F_LH_L_TCP_PPTP, + NPC_F_LH_L_TCP_UNK_PORT, + NPC_F_LH_L_UDP_UNK_PORT, +}; + +enum npc_kpu_err_code { + NPC_EC_NOERR = 0, /* has to be zero */ + NPC_EC_UNK, + NPC_EC_IH_LENGTH, + NPC_EC_EDSA_UNK, + NPC_EC_L2_K1, + NPC_EC_L2_K2, + NPC_EC_L2_K3, + NPC_EC_L2_K3_ETYPE_UNK, + NPC_EC_L2_K4, + NPC_EC_MPLS_2MANY, + NPC_EC_MPLS_UNK, + NPC_EC_NSH_UNK, + NPC_EC_IP_TTL_0, + NPC_EC_IP_FRAG_OFFSET_1, + NPC_EC_IP_VER, + NPC_EC_IP6_HOP_0, + NPC_EC_IP6_VER, + NPC_EC_TCP_FLAGS_FIN_ONLY, + NPC_EC_TCP_FLAGS_ZERO, + NPC_EC_TCP_FLAGS_RST_FIN, + NPC_EC_TCP_FLAGS_URG_SYN, + NPC_EC_TCP_FLAGS_RST_SYN, + NPC_EC_TCP_FLAGS_SYN_FIN, + NPC_EC_VXLAN, + NPC_EC_NVGRE, + NPC_EC_GRE, + NPC_EC_GRE_VER1, + NPC_EC_L4, + NPC_EC_OIP4_CSUM, + NPC_EC_IIP4_CSUM, + NPC_EC_LAST /* has to be the last item */ +}; + +enum NPC_ERRLEV_E { + NPC_ERRLEV_RE = 0, + NPC_ERRLEV_LA = 1, + NPC_ERRLEV_LB = 2, + NPC_ERRLEV_LC = 3, + NPC_ERRLEV_LD = 4, + NPC_ERRLEV_LE = 5, + NPC_ERRLEV_LF = 6, + NPC_ERRLEV_LG = 7, + NPC_ERRLEV_LH = 8, + NPC_ERRLEV_R9 = 9, + NPC_ERRLEV_R10 = 10, + NPC_ERRLEV_R11 = 11, + NPC_ERRLEV_R12 = 12, + NPC_ERRLEV_R13 = 13, + NPC_ERRLEV_R14 = 14, + NPC_ERRLEV_NIX = 15, + NPC_ERRLEV_ENUM_LAST = 16, +}; + +#define NPC_KPU_NOP_CAM \ + { \ + NPC_S_NA, 0xff, \ + 0x0000, \ + 0x0000, \ + 0x0000, \ + 0x0000, \ + 0x0000, \ + 0x0000, \ + } + +#define NPC_KPU_NOP_ACTION \ + { \ + NPC_ERRLEV_RE, NPC_EC_NOERR, \ + 0, 0, 0, 0, 0, \ + NPC_S_NA, 0, 0, \ + NPC_LID_LA, NPC_LT_NA, \ + 0, \ + 0, 0, 0, 0, \ + } + +static struct npc_kpu_profile_action ikpu_action_entries[] = { + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 12, 16, 20, 0, 0, + NPC_S_KPU1_ETHER, 0, 0, + NPC_LID_LA, NPC_LT_NA, + 0, + 0, 0, 0, 0, + + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 12, 16, 20, 0, 0, + NPC_S_KPU1_ETHER, 0, 0, + NPC_LID_LA, NPC_LT_NA, + 0, + 0, 0, 0, 0, + + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 12, 16, 20, 0, 0, + NPC_S_KPU1_ETHER, 0, 0, + NPC_LID_LA, NPC_LT_NA, + 0, + 0, 0, 0, 0, + + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 12, 16, 20, 0, 0, + NPC_S_KPU1_ETHER, 0, 0, + NPC_LID_LA, NPC_LT_NA, + 0, + 0, 0, 0, 0, + + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 12, 16, 20, 0, 0, + NPC_S_KPU1_ETHER, 0, 0, + NPC_LID_LA, NPC_LT_NA, + 0, + 0, 0, 0, 0, + + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 12, 16, 20, 0, 0, + NPC_S_KPU1_ETHER, 0, 0, + NPC_LID_LA, NPC_LT_NA, + 0, + 0, 0, 0, 0, + + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 12, 16, 20, 0, 0, + NPC_S_KPU1_ETHER, 0, 0, + NPC_LID_LA, NPC_LT_NA, + 0, + 0, 0, 0, 0, + + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 12, 16, 20, 0, 0, + NPC_S_KPU1_ETHER, 0, 0, + NPC_LID_LA, NPC_LT_NA, + 0, + 0, 0, 0, 0, + + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 12, 16, 20, 0, 0, + NPC_S_KPU1_ETHER, 0, 0, + NPC_LID_LA, NPC_LT_NA, + 0, + 0, 0, 0, 0, + + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 12, 16, 20, 0, 0, + NPC_S_KPU1_ETHER, 0, 0, + NPC_LID_LA, NPC_LT_NA, + 0, + 0, 0, 0, 0, + + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 12, 16, 20, 0, 0, + NPC_S_KPU1_ETHER, 0, 0, + NPC_LID_LA, NPC_LT_NA, + 0, + 0, 0, 0, 0, + + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 12, 16, 20, 0, 0, + NPC_S_KPU1_ETHER, 0, 0, + NPC_LID_LA, NPC_LT_NA, + 0, + 0, 0, 0, 0, + + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 12, 16, 20, 0, 0, + NPC_S_KPU1_ETHER, 0, 0, + NPC_LID_LA, NPC_LT_NA, + 0, + 0, 0, 0, 0, + + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 12, 16, 20, 0, 0, + NPC_S_KPU1_ETHER, 0, 0, + NPC_LID_LA, NPC_LT_NA, + 0, + 0, 0, 0, 0, + + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 12, 16, 20, 0, 0, + NPC_S_KPU1_ETHER, 0, 0, + NPC_LID_LA, NPC_LT_NA, + 0, + 0, 0, 0, 0, + + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 12, 16, 20, 0, 0, + NPC_S_KPU1_ETHER, 0, 0, + NPC_LID_LA, NPC_LT_NA, + 0, + 0, 0, 0, 0, + + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 12, 16, 20, 0, 0, + NPC_S_KPU1_ETHER, 0, 0, + NPC_LID_LA, NPC_LT_NA, + 0, + 0, 0, 0, 0, + + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 12, 16, 20, 0, 0, + NPC_S_KPU1_ETHER, 0, 0, + NPC_LID_LA, NPC_LT_NA, + 0, + 0, 0, 0, 0, + + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 12, 16, 20, 0, 0, + NPC_S_KPU1_ETHER, 0, 0, + NPC_LID_LA, NPC_LT_NA, + 0, + 0, 0, 0, 0, + + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 12, 16, 20, 0, 0, + NPC_S_KPU1_ETHER, 0, 0, + NPC_LID_LA, NPC_LT_NA, + 0, + 0, 0, 0, 0, + + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 12, 16, 20, 0, 0, + NPC_S_KPU1_ETHER, 0, 0, + NPC_LID_LA, NPC_LT_NA, + 0, + 0, 0, 0, 0, + + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 12, 16, 20, 0, 0, + NPC_S_KPU1_ETHER, 0, 0, + NPC_LID_LA, NPC_LT_NA, + 0, + 0, 0, 0, 0, + + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 12, 16, 20, 0, 0, + NPC_S_KPU1_ETHER, 0, 0, + NPC_LID_LA, NPC_LT_NA, + 0, + 0, 0, 0, 0, + + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 12, 16, 20, 0, 0, + NPC_S_KPU1_ETHER, 0, 0, + NPC_LID_LA, NPC_LT_NA, + 0, + 0, 0, 0, 0, + + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 12, 16, 20, 0, 0, + NPC_S_KPU1_ETHER, 0, 0, + NPC_LID_LA, NPC_LT_NA, + 0, + 0, 0, 0, 0, + + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 12, 16, 20, 0, 0, + NPC_S_KPU1_ETHER, 0, 0, + NPC_LID_LA, NPC_LT_NA, + 0, + 0, 0, 0, 0, + + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 12, 16, 20, 0, 0, + NPC_S_KPU1_ETHER, 0, 0, + NPC_LID_LA, NPC_LT_NA, + 0, + 0, 0, 0, 0, + + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 12, 16, 20, 0, 0, + NPC_S_KPU1_ETHER, 0, 0, + NPC_LID_LA, NPC_LT_NA, + 0, + 0, 0, 0, 0, + + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 12, 16, 20, 0, 0, + NPC_S_KPU1_ETHER, 0, 0, + NPC_LID_LA, NPC_LT_NA, + 0, + 0, 0, 0, 0, + + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 12, 16, 20, 0, 0, + NPC_S_KPU1_ETHER, 0, 0, + NPC_LID_LA, NPC_LT_NA, + 0, + 0, 0, 0, 0, + + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 12, 16, 20, 0, 0, + NPC_S_KPU1_ETHER, 0, 0, + NPC_LID_LA, NPC_LT_NA, + 0, + 0, 0, 0, 0, + + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 12, 16, 20, 0, 0, + NPC_S_KPU1_ETHER, 0, 0, + NPC_LID_LA, NPC_LT_NA, + 0, + 0, 0, 0, 0, + + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 12, 16, 20, 0, 0, + NPC_S_KPU1_ETHER, 0, 0, + NPC_LID_LA, NPC_LT_NA, + 0, + 0, 0, 0, 0, + + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 12, 16, 20, 0, 0, + NPC_S_KPU1_ETHER, 0, 0, + NPC_LID_LA, NPC_LT_NA, + 0, + 0, 0, 0, 0, + + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 12, 16, 20, 0, 0, + NPC_S_KPU1_ETHER, 0, 0, + NPC_LID_LA, NPC_LT_NA, + 0, + 0, 0, 0, 0, + + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 12, 16, 20, 0, 0, + NPC_S_KPU1_ETHER, 0, 0, + NPC_LID_LA, NPC_LT_NA, + 0, + 0, 0, 0, 0, + + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 12, 16, 20, 0, 0, + NPC_S_KPU1_ETHER, 0, 0, + NPC_LID_LA, NPC_LT_NA, + 0, + 0, 0, 0, 0, + + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 12, 16, 20, 0, 0, + NPC_S_KPU1_ETHER, 0, 0, + NPC_LID_LA, NPC_LT_NA, + 0, + 0, 0, 0, 0, + + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 12, 16, 20, 0, 0, + NPC_S_KPU1_ETHER, 0, 0, + NPC_LID_LA, NPC_LT_NA, + 0, + 0, 0, 0, 0, + + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 12, 16, 20, 0, 0, + NPC_S_KPU1_ETHER, 0, 0, + NPC_LID_LA, NPC_LT_NA, + 0, + 0, 0, 0, 0, + + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 12, 16, 20, 0, 0, + NPC_S_KPU1_ETHER, 0, 0, + NPC_LID_LA, NPC_LT_NA, + 0, + 0, 0, 0, 0, + + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 12, 16, 20, 0, 0, + NPC_S_KPU1_ETHER, 0, 0, + NPC_LID_LA, NPC_LT_NA, + 0, + 0, 0, 0, 0, + + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 12, 16, 20, 0, 0, + NPC_S_KPU1_ETHER, 0, 0, + NPC_LID_LA, NPC_LT_NA, + 0, + 0, 0, 0, 0, + + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 12, 16, 20, 0, 0, + NPC_S_KPU1_ETHER, 0, 0, + NPC_LID_LA, NPC_LT_NA, + 0, + 0, 0, 0, 0, + + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 12, 16, 20, 0, 0, + NPC_S_KPU1_ETHER, 0, 0, + NPC_LID_LA, NPC_LT_NA, + 0, + 0, 0, 0, 0, + + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 12, 16, 20, 0, 0, + NPC_S_KPU1_ETHER, 0, 0, + NPC_LID_LA, NPC_LT_NA, + 0, + 0, 0, 0, 0, + + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 12, 16, 20, 0, 0, + NPC_S_KPU1_ETHER, 0, 0, + NPC_LID_LA, NPC_LT_NA, + 0, + 0, 0, 0, 0, + + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 12, 16, 20, 0, 0, + NPC_S_KPU1_ETHER, 0, 0, + NPC_LID_LA, NPC_LT_NA, + 0, + 0, 0, 0, 0, + + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 12, 16, 20, 0, 0, + NPC_S_KPU1_ETHER, 0, 0, + NPC_LID_LA, NPC_LT_NA, + 0, + 0, 0, 0, 0, + + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 12, 16, 20, 0, 0, + NPC_S_KPU1_ETHER, 0, 0, + NPC_LID_LA, NPC_LT_NA, + 0, + 0, 0, 0, 0, + + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 12, 16, 20, 0, 0, + NPC_S_KPU1_ETHER, 0, 0, + NPC_LID_LA, NPC_LT_NA, + 0, + 0, 0, 0, 0, + + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 12, 16, 20, 0, 0, + NPC_S_KPU1_ETHER, 0, 0, + NPC_LID_LA, NPC_LT_NA, + 0, + 0, 0, 0, 0, + + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 12, 16, 20, 0, 0, + NPC_S_KPU1_ETHER, 0, 0, + NPC_LID_LA, NPC_LT_NA, + 0, + 0, 0, 0, 0, + + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 12, 16, 20, 0, 0, + NPC_S_KPU1_ETHER, 0, 0, + NPC_LID_LA, NPC_LT_NA, + 0, + 0, 0, 0, 0, + + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 12, 16, 20, 0, 0, + NPC_S_KPU1_ETHER, 0, 0, + NPC_LID_LA, NPC_LT_NA, + 0, + 0, 0, 0, 0, + + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 12, 16, 20, 0, 0, + NPC_S_KPU1_CUSTOM_PRE_L2, 0, 1, + NPC_LID_LA, NPC_LT_LA_CUSTOM_PRE_L2_ETHER, + 0, + 0, 0, 0, 0, + + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 12, 16, 20, 0, 0, + NPC_S_KPU1_VLAN_EXDSA, 0, 0, + NPC_LID_LA, NPC_LT_NA, + 0, + 0, 0, 0, 0, + + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 12, 16, 20, 0, 0, + NPC_S_KPU1_CUSTOM_PRE_L2, 24, 1, + NPC_LID_LA, NPC_LT_LA_CUSTOM_L2_24B_ETHER, + 0, + 0, 0, 0, 0, + + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 12, 16, 20, 0, 0, + NPC_S_KPU1_CPT_HDR, 40, 0, + NPC_LID_LA, NPC_LT_NA, + 0, + 0, 7, 0, 0, + + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 12, 16, 20, 0, 0, + NPC_S_KPU1_CUSTOM_PRE_L2, 90, 1, + NPC_LID_LA, NPC_LT_LA_CUSTOM_L2_90B_ETHER, + 0, + 0, 0, 0, 0, + + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 36, 40, 44, 0, 0, + NPC_S_KPU1_IH_NIX_HIGIG2, 0, 0, + NPC_LID_LA, NPC_LT_NA, + 0, + 0, 0, 0, 0, + + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 28, 32, 36, 0, 0, + NPC_S_KPU1_HIGIG2, 0, 0, + NPC_LID_LA, NPC_LT_NA, + 0, + 0, 0, 0, 0, + + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 12, 14, 20, 0, 0, + NPC_S_KPU1_EXDSA, 0, 0, + NPC_LID_LA, NPC_LT_NA, + 0, + 0, 0, 0, 0, + + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 20, 24, 28, 0, 0, + NPC_S_KPU1_IH_NIX, 0, 0, + NPC_LID_LA, NPC_LT_NA, + 0, + 0, 0, 0, 0, + + }, +}; + +static struct npc_kpu_profile_cam kpu1_cam_entries[] = { + NPC_KPU_NOP_CAM, + NPC_KPU_NOP_CAM, + NPC_KPU_NOP_CAM, + NPC_KPU_NOP_CAM, + NPC_KPU_NOP_CAM, + NPC_KPU_NOP_CAM, + { + NPC_S_KPU1_ETHER, 0xff, + NPC_ETYPE_IP, + 0xffff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU1_ETHER, 0xff, + NPC_ETYPE_IP6, + 0xffff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU1_ETHER, 0xff, + NPC_ETYPE_ARP, + 0xffff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU1_ETHER, 0xff, + NPC_ETYPE_RARP, + 0xffff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU1_ETHER, 0xff, + NPC_ETYPE_PTP, + 0xffff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU1_ETHER, 0xff, + NPC_ETYPE_FCOE, + 0xffff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU1_ETHER, 0xff, + NPC_ETYPE_CTAG, + 0xffff, + NPC_ETYPE_CTAG, + 0xffff, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU1_ETHER, 0xff, + NPC_ETYPE_CTAG, + 0xffff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU1_ETHER, 0xff, + NPC_ETYPE_SBTAG, + 0xffff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU1_ETHER, 0xff, + NPC_ETYPE_QINQ, + 0xffff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU1_ETHER, 0xff, + NPC_ETYPE_ETAG, + 0xffff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU1_ETHER, 0xff, + NPC_ETYPE_MPLSU, + 0xffff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU1_ETHER, 0xff, + NPC_ETYPE_MPLSM, + 0xffff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU1_ETHER, 0xff, + NPC_ETYPE_NSH, + 0xffff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU1_ETHER, 0xff, + NPC_ETYPE_DSA, + 0xffff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU1_ETHER, 0xff, + NPC_ETYPE_PPPOE, + 0xffff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU1_ETHER, 0xff, + 0x0000, + 0xfc00, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU1_ETHER, 0xff, + 0x0400, + 0xfe00, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU1_ETHER, 0xff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU1_IH_NIX, 0xff, + NPC_ETYPE_IP, + 0xffff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU1_IH_NIX, 0xff, + NPC_ETYPE_IP6, + 0xffff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU1_IH_NIX, 0xff, + NPC_ETYPE_ARP, + 0xffff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU1_IH_NIX, 0xff, + NPC_ETYPE_RARP, + 0xffff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU1_IH_NIX, 0xff, + NPC_ETYPE_PTP, + 0xffff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU1_IH_NIX, 0xff, + NPC_ETYPE_FCOE, + 0xffff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU1_IH_NIX, 0xff, + NPC_ETYPE_CTAG, + 0xffff, + NPC_ETYPE_CTAG, + 0xffff, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU1_IH_NIX, 0xff, + NPC_ETYPE_CTAG, + 0xffff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU1_IH_NIX, 0xff, + NPC_ETYPE_SBTAG, + 0xffff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU1_IH_NIX, 0xff, + NPC_ETYPE_QINQ, + 0xffff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU1_IH_NIX, 0xff, + NPC_ETYPE_ETAG, + 0xffff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU1_IH_NIX, 0xff, + NPC_ETYPE_MPLSU, + 0xffff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU1_IH_NIX, 0xff, + NPC_ETYPE_MPLSM, + 0xffff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU1_IH_NIX, 0xff, + NPC_ETYPE_NSH, + 0xffff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU1_IH_NIX, 0xff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU1_IH, 0xff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU1_EXDSA, 0xff, + 0x0000, + 0x0000, + NPC_DSA_EXTEND, + NPC_DSA_EXTEND, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU1_EXDSA, 0xff, + NPC_DSA_FDSA, + NPC_DSA_FDSA, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU1_EXDSA, 0xff, + 0x0000, + NPC_DSA_EXTEND, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU1_HIGIG2, 0xff, + NPC_ETYPE_IP, + 0xffff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU1_HIGIG2, 0xff, + NPC_ETYPE_IP6, + 0xffff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU1_HIGIG2, 0xff, + NPC_ETYPE_ARP, + 0xffff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU1_HIGIG2, 0xff, + NPC_ETYPE_RARP, + 0xffff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU1_HIGIG2, 0xff, + NPC_ETYPE_PTP, + 0xffff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU1_HIGIG2, 0xff, + NPC_ETYPE_FCOE, + 0xffff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU1_HIGIG2, 0xff, + NPC_ETYPE_CTAG, + 0xffff, + NPC_ETYPE_CTAG, + 0xffff, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU1_HIGIG2, 0xff, + NPC_ETYPE_CTAG, + 0xffff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU1_HIGIG2, 0xff, + NPC_ETYPE_SBTAG, + 0xffff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU1_HIGIG2, 0xff, + NPC_ETYPE_QINQ, + 0xffff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU1_HIGIG2, 0xff, + NPC_ETYPE_ETAG, + 0xffff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU1_HIGIG2, 0xff, + NPC_ETYPE_MPLSU, + 0xffff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU1_HIGIG2, 0xff, + NPC_ETYPE_MPLSM, + 0xffff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU1_HIGIG2, 0xff, + NPC_ETYPE_NSH, + 0xffff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU1_HIGIG2, 0xff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU1_IH_NIX_HIGIG2, 0xff, + NPC_ETYPE_IP, + 0xffff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU1_IH_NIX_HIGIG2, 0xff, + NPC_ETYPE_IP6, + 0xffff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU1_IH_NIX_HIGIG2, 0xff, + NPC_ETYPE_ARP, + 0xffff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU1_IH_NIX_HIGIG2, 0xff, + NPC_ETYPE_RARP, + 0xffff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU1_IH_NIX_HIGIG2, 0xff, + NPC_ETYPE_PTP, + 0xffff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU1_IH_NIX_HIGIG2, 0xff, + NPC_ETYPE_FCOE, + 0xffff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU1_IH_NIX_HIGIG2, 0xff, + NPC_ETYPE_CTAG, + 0xffff, + NPC_ETYPE_CTAG, + 0xffff, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU1_IH_NIX_HIGIG2, 0xff, + NPC_ETYPE_CTAG, + 0xffff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU1_IH_NIX_HIGIG2, 0xff, + NPC_ETYPE_SBTAG, + 0xffff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU1_IH_NIX_HIGIG2, 0xff, + NPC_ETYPE_QINQ, + 0xffff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU1_IH_NIX_HIGIG2, 0xff, + NPC_ETYPE_ETAG, + 0xffff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU1_IH_NIX_HIGIG2, 0xff, + NPC_ETYPE_MPLSU, + 0xffff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU1_IH_NIX_HIGIG2, 0xff, + NPC_ETYPE_MPLSM, + 0xffff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU1_IH_NIX_HIGIG2, 0xff, + NPC_ETYPE_NSH, + 0xffff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU1_IH_NIX_HIGIG2, 0xff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU1_CUSTOM_PRE_L2, 0xff, + NPC_ETYPE_IP, + 0xffff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU1_CUSTOM_PRE_L2, 0xff, + NPC_ETYPE_IP6, + 0xffff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU1_CUSTOM_PRE_L2, 0xff, + NPC_ETYPE_ARP, + 0xffff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU1_CUSTOM_PRE_L2, 0xff, + NPC_ETYPE_RARP, + 0xffff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU1_CUSTOM_PRE_L2, 0xff, + NPC_ETYPE_PTP, + 0xffff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU1_CUSTOM_PRE_L2, 0xff, + NPC_ETYPE_FCOE, + 0xffff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU1_CUSTOM_PRE_L2, 0xff, + NPC_ETYPE_CTAG, + 0xffff, + NPC_ETYPE_CTAG, + 0xffff, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU1_CUSTOM_PRE_L2, 0xff, + NPC_ETYPE_CTAG, + 0xffff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU1_CUSTOM_PRE_L2, 0xff, + NPC_ETYPE_SBTAG, + 0xffff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU1_CUSTOM_PRE_L2, 0xff, + NPC_ETYPE_QINQ, + 0xffff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU1_CUSTOM_PRE_L2, 0xff, + NPC_ETYPE_ETAG, + 0xffff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU1_CUSTOM_PRE_L2, 0xff, + NPC_ETYPE_MPLSU, + 0xffff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU1_CUSTOM_PRE_L2, 0xff, + NPC_ETYPE_MPLSM, + 0xffff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU1_CUSTOM_PRE_L2, 0xff, + NPC_ETYPE_NSH, + 0xffff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU1_CUSTOM_PRE_L2, 0xff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU1_CPT_HDR, 0xff, + NPC_ETYPE_IP, + 0xffff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU1_CPT_HDR, 0xff, + NPC_ETYPE_IP6, + 0xffff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU1_CPT_HDR, 0xff, + NPC_ETYPE_CTAG, + 0xffff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU1_CPT_HDR, 0xff, + NPC_ETYPE_QINQ, + 0xffff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU1_VLAN_EXDSA, 0xff, + NPC_ETYPE_CTAG, + 0xffff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_NA, 0X00, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, +}; + +static struct npc_kpu_profile_cam kpu2_cam_entries[] = { + NPC_KPU_NOP_CAM, + NPC_KPU_NOP_CAM, + NPC_KPU_NOP_CAM, + NPC_KPU_NOP_CAM, + NPC_KPU_NOP_CAM, + NPC_KPU_NOP_CAM, + { + NPC_S_KPU2_CTAG, 0xff, + NPC_ETYPE_IP, + 0xffff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU2_CTAG, 0xff, + NPC_ETYPE_IP6, + 0xffff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU2_CTAG, 0xff, + NPC_ETYPE_ARP, + 0xffff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU2_CTAG, 0xff, + NPC_ETYPE_RARP, + 0xffff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU2_CTAG, 0xff, + NPC_ETYPE_PTP, + 0xffff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU2_CTAG, 0xff, + NPC_ETYPE_FCOE, + 0xffff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU2_CTAG, 0xff, + NPC_ETYPE_MPLSU, + 0xffff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU2_CTAG, 0xff, + NPC_ETYPE_MPLSM, + 0xffff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU2_CTAG, 0xff, + NPC_ETYPE_NSH, + 0xffff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU2_CTAG, 0xff, + NPC_ETYPE_NGIO, + 0xffff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU2_CTAG, 0xff, + NPC_ETYPE_PPPOE, + 0xffff, + 0x0000, + 0x0000, + NPC_PPP_IP, + 0xffff, + }, + { + NPC_S_KPU2_CTAG, 0xff, + NPC_ETYPE_PPPOE, + 0xffff, + 0x0000, + 0x0000, + NPC_PPP_IP6, + 0xffff, + }, + { + NPC_S_KPU2_CTAG, 0xff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU2_SBTAG, 0xff, + NPC_ETYPE_CTAG, + 0xffff, + NPC_ETYPE_IP, + 0xffff, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU2_SBTAG, 0xff, + NPC_ETYPE_CTAG, + 0xffff, + NPC_ETYPE_IP6, + 0xffff, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU2_SBTAG, 0xff, + NPC_ETYPE_CTAG, + 0xffff, + NPC_ETYPE_ARP, + 0xffff, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU2_SBTAG, 0xff, + NPC_ETYPE_CTAG, + 0xffff, + NPC_ETYPE_RARP, + 0xffff, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU2_SBTAG, 0xff, + NPC_ETYPE_CTAG, + 0xffff, + NPC_ETYPE_PTP, + 0xffff, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU2_SBTAG, 0xff, + NPC_ETYPE_CTAG, + 0xffff, + NPC_ETYPE_FCOE, + 0xffff, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU2_SBTAG, 0xff, + NPC_ETYPE_CTAG, + 0xffff, + NPC_ETYPE_MPLSU, + 0xffff, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU2_SBTAG, 0xff, + NPC_ETYPE_CTAG, + 0xffff, + NPC_ETYPE_MPLSM, + 0xffff, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU2_SBTAG, 0xff, + NPC_ETYPE_CTAG, + 0xffff, + NPC_ETYPE_NSH, + 0xffff, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU2_SBTAG, 0xff, + NPC_ETYPE_CTAG, + 0xffff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU2_SBTAG, 0xff, + NPC_ETYPE_SBTAG, + 0xffff, + NPC_ETYPE_CTAG, + 0xffff, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU2_SBTAG, 0xff, + NPC_ETYPE_SBTAG, + 0xffff, + NPC_ETYPE_SBTAG, + 0xffff, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU2_SBTAG, 0xff, + NPC_ETYPE_ITAG, + 0xffff, + 0x0000, + 0x0000, + NPC_ETYPE_IP, + 0xffff, + }, + { + NPC_S_KPU2_SBTAG, 0xff, + NPC_ETYPE_ITAG, + 0xffff, + 0x0000, + 0x0000, + NPC_ETYPE_IP6, + 0xffff, + }, + { + NPC_S_KPU2_SBTAG, 0xff, + NPC_ETYPE_ITAG, + 0xffff, + 0x0000, + 0x0000, + NPC_ETYPE_ARP, + 0xffff, + }, + { + NPC_S_KPU2_SBTAG, 0xff, + NPC_ETYPE_ITAG, + 0xffff, + 0x0000, + 0x0000, + NPC_ETYPE_RARP, + 0xffff, + }, + { + NPC_S_KPU2_SBTAG, 0xff, + NPC_ETYPE_ITAG, + 0xffff, + 0x0000, + 0x0000, + NPC_ETYPE_PTP, + 0xffff, + }, + { + NPC_S_KPU2_SBTAG, 0xff, + NPC_ETYPE_ITAG, + 0xffff, + 0x0000, + 0x0000, + NPC_ETYPE_FCOE, + 0xffff, + }, + { + NPC_S_KPU2_SBTAG, 0xff, + NPC_ETYPE_ITAG, + 0xffff, + 0x0000, + 0x0000, + NPC_ETYPE_MPLSU, + 0xffff, + }, + { + NPC_S_KPU2_SBTAG, 0xff, + NPC_ETYPE_ITAG, + 0xffff, + 0x0000, + 0x0000, + NPC_ETYPE_MPLSM, + 0xffff, + }, + { + NPC_S_KPU2_SBTAG, 0xff, + NPC_ETYPE_ITAG, + 0xffff, + 0x0000, + 0x0000, + NPC_ETYPE_NSH, + 0xffff, + }, + { + NPC_S_KPU2_SBTAG, 0xff, + NPC_ETYPE_ITAG, + 0xffff, + 0x0000, + 0x0000, + NPC_ETYPE_SBTAG, + 0xffff, + }, + { + NPC_S_KPU2_SBTAG, 0xff, + NPC_ETYPE_ITAG, + 0xffff, + 0x0000, + 0x0000, + NPC_ETYPE_CTAG, + 0xffff, + }, + { + NPC_S_KPU2_SBTAG, 0xff, + NPC_ETYPE_ITAG, + 0xffff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU2_SBTAG, 0xff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU2_QINQ, 0xff, + NPC_ETYPE_CTAG, + 0xffff, + NPC_ETYPE_IP, + 0xffff, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU2_QINQ, 0xff, + NPC_ETYPE_CTAG, + 0xffff, + NPC_ETYPE_IP6, + 0xffff, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU2_QINQ, 0xff, + NPC_ETYPE_CTAG, + 0xffff, + NPC_ETYPE_ARP, + 0xffff, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU2_QINQ, 0xff, + NPC_ETYPE_CTAG, + 0xffff, + NPC_ETYPE_RARP, + 0xffff, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU2_QINQ, 0xff, + NPC_ETYPE_CTAG, + 0xffff, + NPC_ETYPE_PTP, + 0xffff, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU2_QINQ, 0xff, + NPC_ETYPE_CTAG, + 0xffff, + NPC_ETYPE_FCOE, + 0xffff, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU2_QINQ, 0xff, + NPC_ETYPE_CTAG, + 0xffff, + NPC_ETYPE_MPLSU, + 0xffff, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU2_QINQ, 0xff, + NPC_ETYPE_CTAG, + 0xffff, + NPC_ETYPE_MPLSM, + 0xffff, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU2_QINQ, 0xff, + NPC_ETYPE_CTAG, + 0xffff, + NPC_ETYPE_NSH, + 0xffff, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU2_QINQ, 0xff, + NPC_ETYPE_CTAG, + 0xffff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU2_QINQ, 0xff, + NPC_ETYPE_QINQ, + 0xffff, + NPC_ETYPE_CTAG, + 0xffff, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU2_QINQ, 0xff, + NPC_ETYPE_QINQ, + 0xffff, + NPC_ETYPE_QINQ, + 0xffff, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU2_QINQ, 0xff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU2_ETAG, 0xff, + NPC_ETYPE_IP, + 0xffff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU2_ETAG, 0xff, + NPC_ETYPE_IP6, + 0xffff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU2_ETAG, 0xff, + NPC_ETYPE_ARP, + 0xffff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU2_ETAG, 0xff, + NPC_ETYPE_RARP, + 0xffff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU2_ETAG, 0xff, + NPC_ETYPE_PTP, + 0xffff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU2_ETAG, 0xff, + NPC_ETYPE_FCOE, + 0xffff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU2_ETAG, 0xff, + NPC_ETYPE_MPLSU, + 0xffff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU2_ETAG, 0xff, + NPC_ETYPE_MPLSM, + 0xffff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU2_ETAG, 0xff, + NPC_ETYPE_NSH, + 0xffff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU2_ETAG, 0xff, + NPC_ETYPE_CTAG, + 0xffff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU2_ETAG, 0xff, + NPC_ETYPE_SBTAG, + 0xffff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU2_ETAG, 0xff, + NPC_ETYPE_QINQ, + 0xffff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU2_ETAG, 0xff, + NPC_ETYPE_ITAG, + 0xffff, + 0x0000, + 0x0000, + NPC_ETYPE_IP, + 0xffff, + }, + { + NPC_S_KPU2_ETAG, 0xff, + NPC_ETYPE_ITAG, + 0xffff, + 0x0000, + 0x0000, + NPC_ETYPE_IP6, + 0xffff, + }, + { + NPC_S_KPU2_ETAG, 0xff, + NPC_ETYPE_ITAG, + 0xffff, + 0x0000, + 0x0000, + NPC_ETYPE_ARP, + 0xffff, + }, + { + NPC_S_KPU2_ETAG, 0xff, + NPC_ETYPE_ITAG, + 0xffff, + 0x0000, + 0x0000, + NPC_ETYPE_SBTAG, + 0xffff, + }, + { + NPC_S_KPU2_ETAG, 0xff, + NPC_ETYPE_ITAG, + 0xffff, + 0x0000, + 0x0000, + NPC_ETYPE_CTAG, + 0xffff, + }, + { + NPC_S_KPU2_ETAG, 0xff, + NPC_ETYPE_ITAG, + 0xffff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU2_ETAG, 0xff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU2_CTAG2, 0xff, + NPC_ETYPE_IP, + 0xffff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU2_CTAG2, 0xff, + NPC_ETYPE_IP6, + 0xffff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU2_CTAG2, 0xff, + NPC_ETYPE_ARP, + 0xffff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU2_CTAG2, 0xff, + NPC_ETYPE_RARP, + 0xffff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU2_CTAG2, 0xff, + NPC_ETYPE_PTP, + 0xffff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU2_CTAG2, 0xff, + NPC_ETYPE_FCOE, + 0xffff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU2_CTAG2, 0xff, + NPC_ETYPE_MPLSU, + 0xffff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU2_CTAG2, 0xff, + NPC_ETYPE_MPLSM, + 0xffff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU2_CTAG2, 0xff, + NPC_ETYPE_NSH, + 0xffff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU2_CTAG2, 0xff, + NPC_ETYPE_CTAG, + 0xffff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU2_CTAG2, 0xff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU2_EXDSA, 0xff, + NPC_DSA_EDSA, + NPC_DSA_EDSA, + 0x0000, + 0x0000, + NPC_ETYPE_IP, + 0xffff, + }, + { + NPC_S_KPU2_EXDSA, 0xff, + NPC_DSA_EDSA, + NPC_DSA_EDSA, + 0x0000, + 0x0000, + NPC_ETYPE_IP6, + 0xffff, + }, + { + NPC_S_KPU2_EXDSA, 0xff, + NPC_DSA_EDSA, + NPC_DSA_EDSA, + 0x0000, + 0x0000, + NPC_ETYPE_ARP, + 0xffff, + }, + { + NPC_S_KPU2_EXDSA, 0xff, + NPC_DSA_EDSA, + NPC_DSA_EDSA, + 0x0000, + 0x0000, + NPC_ETYPE_RARP, + 0xffff, + }, + { + NPC_S_KPU2_EXDSA, 0xff, + NPC_DSA_EDSA, + NPC_DSA_EDSA, + 0x0000, + 0x0000, + NPC_ETYPE_PTP, + 0xffff, + }, + { + NPC_S_KPU2_EXDSA, 0xff, + NPC_DSA_EDSA, + NPC_DSA_EDSA, + 0x0000, + 0x0000, + NPC_ETYPE_FCOE, + 0xffff, + }, + { + NPC_S_KPU2_EXDSA, 0xff, + NPC_DSA_EDSA, + NPC_DSA_EDSA, + 0x0000, + 0x0000, + NPC_ETYPE_CTAG, + 0xffff, + }, + { + NPC_S_KPU2_EXDSA, 0xff, + NPC_DSA_EDSA, + NPC_DSA_EDSA, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU2_EXDSA, 0xff, + 0x0000, + NPC_DSA_EDSA, + NPC_ETYPE_IP, + 0xffff, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU2_EXDSA, 0xff, + 0x0000, + NPC_DSA_EDSA, + NPC_ETYPE_IP6, + 0xffff, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU2_EXDSA, 0xff, + 0x0000, + NPC_DSA_EDSA, + NPC_ETYPE_ARP, + 0xffff, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU2_EXDSA, 0xff, + 0x0000, + NPC_DSA_EDSA, + NPC_ETYPE_RARP, + 0xffff, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU2_EXDSA, 0xff, + 0x0000, + NPC_DSA_EDSA, + NPC_ETYPE_PTP, + 0xffff, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU2_EXDSA, 0xff, + 0x0000, + NPC_DSA_EDSA, + NPC_ETYPE_FCOE, + 0xffff, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU2_EXDSA, 0xff, + 0x0000, + NPC_DSA_EDSA, + NPC_ETYPE_CTAG, + 0xffff, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU2_EXDSA, 0xff, + 0x0000, + NPC_DSA_EDSA, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU2_CPT_CTAG, 0xff, + NPC_ETYPE_IP, + 0xffff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU2_CPT_CTAG, 0xff, + NPC_ETYPE_IP6, + 0xffff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU2_CPT_QINQ, 0xff, + NPC_ETYPE_CTAG, + 0xffff, + NPC_ETYPE_IP, + 0xffff, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU2_CPT_QINQ, 0xff, + NPC_ETYPE_CTAG, + 0xffff, + NPC_ETYPE_IP6, + 0xffff, + 0x0000, + 0x0000, + }, + { + NPC_S_NA, 0X00, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, +}; + +static struct npc_kpu_profile_cam kpu3_cam_entries[] = { + NPC_KPU_NOP_CAM, + NPC_KPU_NOP_CAM, + NPC_KPU_NOP_CAM, + NPC_KPU_NOP_CAM, + NPC_KPU_NOP_CAM, + NPC_KPU_NOP_CAM, + { + NPC_S_KPU3_CTAG, 0xff, + NPC_ETYPE_IP, + 0xffff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU3_CTAG, 0xff, + NPC_ETYPE_IP6, + 0xffff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU3_CTAG, 0xff, + NPC_ETYPE_ARP, + 0xffff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU3_CTAG, 0xff, + NPC_ETYPE_RARP, + 0xffff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU3_CTAG, 0xff, + NPC_ETYPE_PTP, + 0xffff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU3_CTAG, 0xff, + NPC_ETYPE_FCOE, + 0xffff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU3_CTAG, 0xff, + NPC_ETYPE_MPLSU, + 0xffff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU3_CTAG, 0xff, + NPC_ETYPE_MPLSM, + 0xffff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU3_CTAG, 0xff, + NPC_ETYPE_NSH, + 0xffff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU3_CTAG, 0xff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU3_STAG, 0xff, + NPC_ETYPE_CTAG, + 0xffff, + NPC_ETYPE_IP, + 0xffff, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU3_STAG, 0xff, + NPC_ETYPE_CTAG, + 0xffff, + NPC_ETYPE_IP6, + 0xffff, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU3_STAG, 0xff, + NPC_ETYPE_CTAG, + 0xffff, + NPC_ETYPE_ARP, + 0xffff, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU3_STAG, 0xff, + NPC_ETYPE_CTAG, + 0xffff, + NPC_ETYPE_RARP, + 0xffff, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU3_STAG, 0xff, + NPC_ETYPE_CTAG, + 0xffff, + NPC_ETYPE_PTP, + 0xffff, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU3_STAG, 0xff, + NPC_ETYPE_CTAG, + 0xffff, + NPC_ETYPE_FCOE, + 0xffff, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU3_STAG, 0xff, + NPC_ETYPE_CTAG, + 0xffff, + NPC_ETYPE_MPLSU, + 0xffff, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU3_STAG, 0xff, + NPC_ETYPE_CTAG, + 0xffff, + NPC_ETYPE_MPLSM, + 0xffff, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU3_STAG, 0xff, + NPC_ETYPE_CTAG, + 0xffff, + NPC_ETYPE_NSH, + 0xffff, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU3_STAG, 0xff, + NPC_ETYPE_IP, + 0xffff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU3_STAG, 0xff, + NPC_ETYPE_IP6, + 0xffff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU3_STAG, 0xff, + NPC_ETYPE_ARP, + 0xffff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU3_STAG, 0xff, + NPC_ETYPE_RARP, + 0xffff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU3_STAG, 0xff, + NPC_ETYPE_MPLSU, + 0xffff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU3_STAG, 0xff, + NPC_ETYPE_MPLSM, + 0xffff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU3_STAG, 0xff, + NPC_ETYPE_NSH, + 0xffff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU3_STAG, 0xff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU3_QINQ, 0xff, + NPC_ETYPE_CTAG, + 0xffff, + NPC_ETYPE_IP, + 0xffff, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU3_QINQ, 0xff, + NPC_ETYPE_CTAG, + 0xffff, + NPC_ETYPE_IP6, + 0xffff, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU3_QINQ, 0xff, + NPC_ETYPE_CTAG, + 0xffff, + NPC_ETYPE_ARP, + 0xffff, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU3_QINQ, 0xff, + NPC_ETYPE_CTAG, + 0xffff, + NPC_ETYPE_RARP, + 0xffff, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU3_QINQ, 0xff, + NPC_ETYPE_CTAG, + 0xffff, + NPC_ETYPE_PTP, + 0xffff, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU3_QINQ, 0xff, + NPC_ETYPE_CTAG, + 0xffff, + NPC_ETYPE_FCOE, + 0xffff, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU3_QINQ, 0xff, + NPC_ETYPE_CTAG, + 0xffff, + NPC_ETYPE_MPLSU, + 0xffff, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU3_QINQ, 0xff, + NPC_ETYPE_CTAG, + 0xffff, + NPC_ETYPE_MPLSM, + 0xffff, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU3_QINQ, 0xff, + NPC_ETYPE_CTAG, + 0xffff, + NPC_ETYPE_NSH, + 0xffff, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU3_QINQ, 0xff, + NPC_ETYPE_IP, + 0xffff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU3_QINQ, 0xff, + NPC_ETYPE_IP6, + 0xffff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU3_QINQ, 0xff, + NPC_ETYPE_ARP, + 0xffff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU3_QINQ, 0xff, + NPC_ETYPE_RARP, + 0xffff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU3_QINQ, 0xff, + NPC_ETYPE_PTP, + 0xffff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU3_QINQ, 0xff, + NPC_ETYPE_FCOE, + 0xffff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU3_QINQ, 0xff, + NPC_ETYPE_MPLSU, + 0xffff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU3_QINQ, 0xff, + NPC_ETYPE_MPLSM, + 0xffff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU3_QINQ, 0xff, + NPC_ETYPE_NSH, + 0xffff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU3_QINQ, 0xff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU3_CTAG_C, 0xff, + NPC_ETYPE_IP, + 0xffff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU3_CTAG_C, 0xff, + NPC_ETYPE_IP6, + 0xffff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU3_CTAG_C, 0xff, + NPC_ETYPE_ARP, + 0xffff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU3_CTAG_C, 0xff, + NPC_ETYPE_RARP, + 0xffff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU3_CTAG_C, 0xff, + NPC_ETYPE_PTP, + 0xffff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU3_CTAG_C, 0xff, + NPC_ETYPE_FCOE, + 0xffff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU3_CTAG_C, 0xff, + NPC_ETYPE_MPLSU, + 0xffff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU3_CTAG_C, 0xff, + NPC_ETYPE_MPLSM, + 0xffff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU3_CTAG_C, 0xff, + NPC_ETYPE_NSH, + 0xffff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU3_CTAG_C, 0xff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU3_STAG_C, 0xff, + NPC_ETYPE_CTAG, + 0xffff, + NPC_ETYPE_IP, + 0xffff, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU3_STAG_C, 0xff, + NPC_ETYPE_CTAG, + 0xffff, + NPC_ETYPE_IP6, + 0xffff, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU3_STAG_C, 0xff, + NPC_ETYPE_CTAG, + 0xffff, + NPC_ETYPE_ARP, + 0xffff, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU3_STAG_C, 0xff, + NPC_ETYPE_CTAG, + 0xffff, + NPC_ETYPE_RARP, + 0xffff, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU3_STAG_C, 0xff, + NPC_ETYPE_CTAG, + 0xffff, + NPC_ETYPE_PTP, + 0xffff, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU3_STAG_C, 0xff, + NPC_ETYPE_CTAG, + 0xffff, + NPC_ETYPE_FCOE, + 0xffff, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU3_STAG_C, 0xff, + NPC_ETYPE_CTAG, + 0xffff, + NPC_ETYPE_MPLSU, + 0xffff, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU3_STAG_C, 0xff, + NPC_ETYPE_CTAG, + 0xffff, + NPC_ETYPE_MPLSM, + 0xffff, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU3_STAG_C, 0xff, + NPC_ETYPE_CTAG, + 0xffff, + NPC_ETYPE_NSH, + 0xffff, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU3_STAG_C, 0xff, + NPC_ETYPE_IP, + 0xffff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU3_STAG_C, 0xff, + NPC_ETYPE_IP6, + 0xffff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU3_STAG_C, 0xff, + NPC_ETYPE_ARP, + 0xffff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU3_STAG_C, 0xff, + NPC_ETYPE_RARP, + 0xffff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU3_STAG_C, 0xff, + NPC_ETYPE_MPLSU, + 0xffff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU3_STAG_C, 0xff, + NPC_ETYPE_MPLSM, + 0xffff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU3_STAG_C, 0xff, + NPC_ETYPE_NSH, + 0xffff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU3_STAG_C, 0xff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU3_QINQ_C, 0xff, + NPC_ETYPE_CTAG, + 0xffff, + NPC_ETYPE_IP, + 0xffff, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU3_QINQ_C, 0xff, + NPC_ETYPE_CTAG, + 0xffff, + NPC_ETYPE_IP6, + 0xffff, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU3_QINQ_C, 0xff, + NPC_ETYPE_CTAG, + 0xffff, + NPC_ETYPE_ARP, + 0xffff, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU3_QINQ_C, 0xff, + NPC_ETYPE_CTAG, + 0xffff, + NPC_ETYPE_RARP, + 0xffff, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU3_QINQ_C, 0xff, + NPC_ETYPE_CTAG, + 0xffff, + NPC_ETYPE_PTP, + 0xffff, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU3_QINQ_C, 0xff, + NPC_ETYPE_CTAG, + 0xffff, + NPC_ETYPE_FCOE, + 0xffff, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU3_QINQ_C, 0xff, + NPC_ETYPE_CTAG, + 0xffff, + NPC_ETYPE_MPLSU, + 0xffff, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU3_QINQ_C, 0xff, + NPC_ETYPE_CTAG, + 0xffff, + NPC_ETYPE_MPLSM, + 0xffff, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU3_QINQ_C, 0xff, + NPC_ETYPE_CTAG, + 0xffff, + NPC_ETYPE_NSH, + 0xffff, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU3_QINQ_C, 0xff, + NPC_ETYPE_IP, + 0xffff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU3_QINQ_C, 0xff, + NPC_ETYPE_IP6, + 0xffff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU3_QINQ_C, 0xff, + NPC_ETYPE_ARP, + 0xffff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU3_QINQ_C, 0xff, + NPC_ETYPE_RARP, + 0xffff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU3_QINQ_C, 0xff, + NPC_ETYPE_PTP, + 0xffff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU3_QINQ_C, 0xff, + NPC_ETYPE_FCOE, + 0xffff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU3_QINQ_C, 0xff, + NPC_ETYPE_MPLSU, + 0xffff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU3_QINQ_C, 0xff, + NPC_ETYPE_MPLSM, + 0xffff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU3_QINQ_C, 0xff, + NPC_ETYPE_NSH, + 0xffff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU3_QINQ_C, 0xff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU3_DSA, 0xff, + NPC_ETYPE_IP, + 0xffff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU3_DSA, 0xff, + NPC_ETYPE_IP6, + 0xffff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU3_DSA, 0xff, + NPC_ETYPE_ARP, + 0xffff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU3_DSA, 0xff, + NPC_ETYPE_RARP, + 0xffff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU3_DSA, 0xff, + NPC_ETYPE_PTP, + 0xffff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU3_DSA, 0xff, + NPC_ETYPE_FCOE, + 0xffff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU3_DSA, 0xff, + NPC_ETYPE_CTAG, + 0xffff, + NPC_ETYPE_IP, + 0xffff, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU3_DSA, 0xff, + NPC_ETYPE_CTAG, + 0xffff, + NPC_ETYPE_IP6, + 0xffff, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU3_DSA, 0xff, + NPC_ETYPE_CTAG, + 0xffff, + NPC_ETYPE_ARP, + 0xffff, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU3_DSA, 0xff, + NPC_ETYPE_CTAG, + 0xffff, + NPC_ETYPE_RARP, + 0xffff, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU3_DSA, 0xff, + NPC_ETYPE_CTAG, + 0xffff, + NPC_ETYPE_PTP, + 0xffff, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU3_DSA, 0xff, + NPC_ETYPE_CTAG, + 0xffff, + NPC_ETYPE_FCOE, + 0xffff, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU3_DSA, 0xff, + NPC_ETYPE_CTAG, + 0xffff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU3_DSA, 0xff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU3_VLAN_EXDSA, 0xff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_NA, 0X00, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, +}; + +static struct npc_kpu_profile_cam kpu4_cam_entries[] = { + NPC_KPU_NOP_CAM, + NPC_KPU_NOP_CAM, + NPC_KPU_NOP_CAM, + NPC_KPU_NOP_CAM, + NPC_KPU_NOP_CAM, + NPC_KPU_NOP_CAM, + { + NPC_S_KPU4_MPLS, 0xff, + NPC_MPLS_S, + NPC_MPLS_S, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU4_MPLS, 0xff, + 0x0000, + NPC_MPLS_S, + NPC_MPLS_S, + NPC_MPLS_S, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU4_MPLS, 0xff, + 0x0000, + NPC_MPLS_S, + 0x0000, + NPC_MPLS_S, + NPC_MPLS_S, + NPC_MPLS_S, + }, + { + NPC_S_KPU4_MPLS, 0xff, + 0x0000, + NPC_MPLS_S, + 0x0000, + NPC_MPLS_S, + 0x0000, + NPC_MPLS_S, + }, + { + NPC_S_KPU4_NSH, 0xff, + NPC_NSH_NP_IP, + NPC_NSH_NP_MASK, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU4_NSH, 0xff, + NPC_NSH_NP_IP6, + NPC_NSH_NP_MASK, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU4_NSH, 0xff, + NPC_NSH_NP_ETH, + NPC_NSH_NP_MASK, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU4_NSH, 0xff, + NPC_NSH_NP_MPLS, + NPC_NSH_NP_MASK, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU4_NSH, 0xff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU4_FDSA, 0xff, + NPC_ETYPE_IP, + 0xffff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU4_FDSA, 0xff, + NPC_ETYPE_IP6, + 0xffff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU4_FDSA, 0xff, + NPC_ETYPE_ARP, + 0xffff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU4_FDSA, 0xff, + NPC_ETYPE_RARP, + 0xffff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU4_FDSA, 0xff, + NPC_ETYPE_PTP, + 0xffff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU4_FDSA, 0xff, + NPC_ETYPE_FCOE, + 0xffff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU4_FDSA, 0xff, + NPC_ETYPE_CTAG, + 0xffff, + NPC_ETYPE_IP, + 0xffff, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU4_FDSA, 0xff, + NPC_ETYPE_CTAG, + 0xffff, + NPC_ETYPE_IP6, + 0xffff, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU4_FDSA, 0xff, + NPC_ETYPE_CTAG, + 0xffff, + NPC_ETYPE_ARP, + 0xffff, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU4_FDSA, 0xff, + NPC_ETYPE_CTAG, + 0xffff, + NPC_ETYPE_RARP, + 0xffff, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU4_FDSA, 0xff, + NPC_ETYPE_CTAG, + 0xffff, + NPC_ETYPE_PTP, + 0xffff, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU4_FDSA, 0xff, + NPC_ETYPE_CTAG, + 0xffff, + NPC_ETYPE_FCOE, + 0xffff, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU4_FDSA, 0xff, + NPC_ETYPE_PPPOE, + 0xffff, + 0x0000, + 0x0000, + NPC_PPP_IP, + 0xffff, + }, + { + NPC_S_KPU4_FDSA, 0xff, + NPC_ETYPE_PPPOE, + 0xffff, + 0x0000, + 0x0000, + NPC_PPP_IP6, + 0xffff, + }, + { + NPC_S_KPU4_FDSA, 0xff, + 0x0000, + NPC_DSA_FDSA, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU4_VLAN_EXDSA, 0xff, + NPC_ETYPE_IP, + 0xffff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU4_VLAN_EXDSA, 0xff, + NPC_ETYPE_IP6, + 0xffff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU4_VLAN_EXDSA, 0xff, + NPC_ETYPE_ARP, + 0xffff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU4_VLAN_EXDSA, 0xff, + NPC_ETYPE_RARP, + 0xffff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU4_VLAN_EXDSA, 0xff, + NPC_ETYPE_PTP, + 0xffff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU4_VLAN_EXDSA, 0xff, + NPC_ETYPE_FCOE, + 0xffff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU4_VLAN_EXDSA, 0xff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU4_PPPOE, 0xff, + NPC_PPP_IP, + 0xffff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU4_PPPOE, 0xff, + NPC_PPP_IP6, + 0xffff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_NA, 0X00, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, +}; + +static struct npc_kpu_profile_cam kpu5_cam_entries[] = { + NPC_KPU_NOP_CAM, + NPC_KPU_NOP_CAM, + NPC_KPU_NOP_CAM, + NPC_KPU_NOP_CAM, + NPC_KPU_NOP_CAM, + NPC_KPU_NOP_CAM, + { + NPC_S_KPU5_IP, 0xff, + 0x0000, + NPC_IP_TTL_MASK, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU5_IP, 0xff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + 0x0001, + NPC_IP_HDR_FRAGOFF, + }, + { + NPC_S_KPU5_IP, 0xff, + NPC_IPNH_TCP, + 0x00ff, + NPC_IP_VER_4 | NPC_IP_HDR_LEN_5, + NPC_IP_VER_MASK | NPC_IP_HDR_LEN_MASK, + 0x0000, + NPC_IP_HDR_MF | NPC_IP_HDR_FRAGOFF, + }, + { + NPC_S_KPU5_IP, 0xff, + NPC_IPNH_UDP, + 0x00ff, + NPC_IP_VER_4 | NPC_IP_HDR_LEN_5, + NPC_IP_VER_MASK | NPC_IP_HDR_LEN_MASK, + 0x0000, + NPC_IP_HDR_MF | NPC_IP_HDR_FRAGOFF, + }, + { + NPC_S_KPU5_IP, 0xff, + NPC_IPNH_SCTP, + 0x00ff, + NPC_IP_VER_4 | NPC_IP_HDR_LEN_5, + NPC_IP_VER_MASK | NPC_IP_HDR_LEN_MASK, + 0x0000, + NPC_IP_HDR_MF | NPC_IP_HDR_FRAGOFF, + }, + { + NPC_S_KPU5_IP, 0xff, + NPC_IPNH_ICMP, + 0x00ff, + NPC_IP_VER_4 | NPC_IP_HDR_LEN_5, + NPC_IP_VER_MASK | NPC_IP_HDR_LEN_MASK, + 0x0000, + NPC_IP_HDR_MF | NPC_IP_HDR_FRAGOFF, + }, + { + NPC_S_KPU5_IP, 0xff, + NPC_IPNH_IGMP, + 0x00ff, + NPC_IP_VER_4 | NPC_IP_HDR_LEN_5, + NPC_IP_VER_MASK | NPC_IP_HDR_LEN_MASK, + 0x0000, + NPC_IP_HDR_MF | NPC_IP_HDR_FRAGOFF, + }, + { + NPC_S_KPU5_IP, 0xff, + NPC_IPNH_ESP, + 0x00ff, + NPC_IP_VER_4 | NPC_IP_HDR_LEN_5, + NPC_IP_VER_MASK | NPC_IP_HDR_LEN_MASK, + 0x0000, + NPC_IP_HDR_MF | NPC_IP_HDR_FRAGOFF, + }, + { + NPC_S_KPU5_IP, 0xff, + NPC_IPNH_AH, + 0x00ff, + NPC_IP_VER_4 | NPC_IP_HDR_LEN_5, + NPC_IP_VER_MASK | NPC_IP_HDR_LEN_MASK, + 0x0000, + NPC_IP_HDR_MF | NPC_IP_HDR_FRAGOFF, + }, + { + NPC_S_KPU5_IP, 0xff, + NPC_IPNH_GRE, + 0x00ff, + NPC_IP_VER_4 | NPC_IP_HDR_LEN_5, + NPC_IP_VER_MASK | NPC_IP_HDR_LEN_MASK, + 0x0000, + NPC_IP_HDR_MF | NPC_IP_HDR_FRAGOFF, + }, + { + NPC_S_KPU5_IP, 0xff, + NPC_IPNH_IP, + 0x00ff, + NPC_IP_VER_4 | NPC_IP_HDR_LEN_5, + NPC_IP_VER_MASK | NPC_IP_HDR_LEN_MASK, + 0x0000, + NPC_IP_HDR_MF | NPC_IP_HDR_FRAGOFF, + }, + { + NPC_S_KPU5_IP, 0xff, + NPC_IPNH_IP6, + 0x00ff, + NPC_IP_VER_4 | NPC_IP_HDR_LEN_5, + NPC_IP_VER_MASK | NPC_IP_HDR_LEN_MASK, + 0x0000, + NPC_IP_HDR_MF | NPC_IP_HDR_FRAGOFF, + }, + { + NPC_S_KPU5_IP, 0xff, + NPC_IPNH_MPLS, + 0x00ff, + NPC_IP_VER_4 | NPC_IP_HDR_LEN_5, + NPC_IP_VER_MASK | NPC_IP_HDR_LEN_MASK, + 0x0000, + NPC_IP_HDR_MF | NPC_IP_HDR_FRAGOFF, + }, + { + NPC_S_KPU5_IP, 0xff, + 0x0000, + 0x0000, + NPC_IP_VER_4 | NPC_IP_HDR_LEN_5, + NPC_IP_VER_MASK | NPC_IP_HDR_LEN_MASK, + 0x0000, + NPC_IP_HDR_MF | NPC_IP_HDR_FRAGOFF, + }, + { + NPC_S_KPU5_IP, 0xff, + 0x0000, + 0x0000, + NPC_IP_VER_4 | NPC_IP_HDR_LEN_5, + NPC_IP_VER_MASK | NPC_IP_HDR_LEN_MASK, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU5_IP, 0xff, + NPC_IPNH_TCP, + 0x00ff, + NPC_IP_VER_4, + NPC_IP_VER_MASK, + 0x0000, + NPC_IP_HDR_MF | NPC_IP_HDR_FRAGOFF, + }, + { + NPC_S_KPU5_IP, 0xff, + NPC_IPNH_UDP, + 0x00ff, + NPC_IP_VER_4, + NPC_IP_VER_MASK, + 0x0000, + NPC_IP_HDR_MF | NPC_IP_HDR_FRAGOFF, + }, + { + NPC_S_KPU5_IP, 0xff, + NPC_IPNH_SCTP, + 0x00ff, + NPC_IP_VER_4, + NPC_IP_VER_MASK, + 0x0000, + NPC_IP_HDR_MF | NPC_IP_HDR_FRAGOFF, + }, + { + NPC_S_KPU5_IP, 0xff, + NPC_IPNH_ICMP, + 0x00ff, + NPC_IP_VER_4, + NPC_IP_VER_MASK, + 0x0000, + NPC_IP_HDR_MF | NPC_IP_HDR_FRAGOFF, + }, + { + NPC_S_KPU5_IP, 0xff, + NPC_IPNH_IGMP, + 0x00ff, + NPC_IP_VER_4, + NPC_IP_VER_MASK, + 0x0000, + NPC_IP_HDR_MF | NPC_IP_HDR_FRAGOFF, + }, + { + NPC_S_KPU5_IP, 0xff, + NPC_IPNH_ESP, + 0x00ff, + NPC_IP_VER_4, + NPC_IP_VER_MASK, + 0x0000, + NPC_IP_HDR_MF | NPC_IP_HDR_FRAGOFF, + }, + { + NPC_S_KPU5_IP, 0xff, + NPC_IPNH_AH, + 0x00ff, + NPC_IP_VER_4, + NPC_IP_VER_MASK, + 0x0000, + NPC_IP_HDR_MF | NPC_IP_HDR_FRAGOFF, + }, + { + NPC_S_KPU5_IP, 0xff, + NPC_IPNH_GRE, + 0x00ff, + NPC_IP_VER_4, + NPC_IP_VER_MASK, + 0x0000, + NPC_IP_HDR_MF | NPC_IP_HDR_FRAGOFF, + }, + { + NPC_S_KPU5_IP, 0xff, + NPC_IPNH_IP, + 0x00ff, + NPC_IP_VER_4, + NPC_IP_VER_MASK, + 0x0000, + NPC_IP_HDR_MF | NPC_IP_HDR_FRAGOFF, + }, + { + NPC_S_KPU5_IP, 0xff, + NPC_IPNH_IP6, + 0x00ff, + NPC_IP_VER_4, + NPC_IP_VER_MASK, + 0x0000, + NPC_IP_HDR_MF | NPC_IP_HDR_FRAGOFF, + }, + { + NPC_S_KPU5_IP, 0xff, + NPC_IPNH_MPLS, + 0x00ff, + NPC_IP_VER_4, + NPC_IP_VER_MASK, + 0x0000, + NPC_IP_HDR_MF | NPC_IP_HDR_FRAGOFF, + }, + { + NPC_S_KPU5_IP, 0xff, + 0x0000, + 0x0000, + NPC_IP_VER_4, + NPC_IP_VER_MASK, + 0x0000, + NPC_IP_HDR_MF | NPC_IP_HDR_FRAGOFF, + }, + { + NPC_S_KPU5_IP, 0xff, + 0x0000, + 0x0000, + NPC_IP_VER_4, + NPC_IP_VER_MASK, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU5_IP, 0xff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU5_ARP, 0xff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU5_RARP, 0xff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU5_PTP, 0xff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU5_FCOE, 0xff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU5_IP6, 0xff, + 0x0000, + NPC_IP6_HOP_MASK, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU5_IP6, 0xff, + NPC_IPNH_TCP << 8, + 0xff00, + NPC_IP_VER_6, + NPC_IP_VER_MASK, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU5_IP6, 0xff, + NPC_IPNH_UDP << 8, + 0xff00, + NPC_IP_VER_6, + NPC_IP_VER_MASK, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU5_IP6, 0xff, + NPC_IPNH_SCTP << 8, + 0xff00, + NPC_IP_VER_6, + NPC_IP_VER_MASK, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU5_IP6, 0xff, + NPC_IPNH_ICMP << 8, + 0xff00, + NPC_IP_VER_6, + NPC_IP_VER_MASK, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU5_IP6, 0xff, + NPC_IPNH_ICMP6 << 8, + 0xff00, + NPC_IP_VER_6, + NPC_IP_VER_MASK, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU5_IP6, 0xff, + NPC_IPNH_GRE << 8, + 0xff00, + NPC_IP_VER_6, + NPC_IP_VER_MASK, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU5_IP6, 0xff, + NPC_IPNH_IP6 << 8, + 0xff00, + NPC_IP_VER_6, + NPC_IP_VER_MASK, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU5_IP6, 0xff, + NPC_IPNH_MPLS << 8, + 0xff00, + NPC_IP_VER_6, + NPC_IP_VER_MASK, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU5_IP6, 0xff, + NPC_IPNH_HOP << 8, + 0xff00, + NPC_IP_VER_6, + NPC_IP_VER_MASK, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU5_IP6, 0xff, + NPC_IPNH_DEST << 8, + 0xff00, + NPC_IP_VER_6, + NPC_IP_VER_MASK, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU5_IP6, 0xff, + NPC_IPNH_ROUT << 8, + 0xff00, + NPC_IP_VER_6, + NPC_IP_VER_MASK, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU5_IP6, 0xff, + NPC_IPNH_FRAG << 8, + 0xff00, + NPC_IP_VER_6, + NPC_IP_VER_MASK, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU5_IP6, 0xff, + NPC_IPNH_ESP << 8, + 0xff00, + NPC_IP_VER_6, + NPC_IP_VER_MASK, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU5_IP6, 0xff, + NPC_IPNH_AH << 8, + 0xff00, + NPC_IP_VER_6, + NPC_IP_VER_MASK, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU5_IP6, 0xff, + NPC_IPNH_MOBILITY << 8, + 0xff00, + NPC_IP_VER_6, + NPC_IP_VER_MASK, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU5_IP6, 0xff, + NPC_IPNH_HOSTID << 8, + 0xff00, + NPC_IP_VER_6, + NPC_IP_VER_MASK, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU5_IP6, 0xff, + NPC_IPNH_SHIM6 << 8, + 0xff00, + NPC_IP_VER_6, + NPC_IP_VER_MASK, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU5_IP6, 0xff, + 0x0000, + 0x0000, + NPC_IP_VER_6, + NPC_IP_VER_MASK, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU5_IP6, 0xff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU5_MPLS, 0xff, + NPC_MPLS_S, + NPC_MPLS_S, + NPC_IP_VER_4, + NPC_IP_VER_MASK, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU5_MPLS, 0xff, + NPC_MPLS_S, + NPC_MPLS_S, + NPC_IP_VER_6, + NPC_IP_VER_MASK, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU5_MPLS, 0xff, + NPC_MPLS_S, + NPC_MPLS_S, + 0x0000, + 0xffff, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU5_MPLS, 0xff, + NPC_MPLS_S, + NPC_MPLS_S, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU5_MPLS, 0xff, + 0x0000, + NPC_MPLS_S, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU5_MPLS_PL, 0xff, + NPC_IP_VER_4, + NPC_IP_VER_MASK, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU5_MPLS_PL, 0xff, + NPC_IP_VER_6, + NPC_IP_VER_MASK, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU5_MPLS_PL, 0xff, + 0x0000, + 0xffff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU5_MPLS_PL, 0xff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU5_CPT_IP, 0xff, + 0x0000, + NPC_IP_TTL_MASK, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU5_CPT_IP, 0xff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + 0x0001, + NPC_IP_HDR_FRAGOFF, + }, + { + NPC_S_KPU5_CPT_IP, 0xff, + NPC_IPNH_TCP, + 0x00ff, + NPC_IP_VER_4 | NPC_IP_HDR_LEN_5, + NPC_IP_VER_MASK | NPC_IP_HDR_LEN_MASK, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU5_CPT_IP, 0xff, + NPC_IPNH_UDP, + 0x00ff, + NPC_IP_VER_4 | NPC_IP_HDR_LEN_5, + NPC_IP_VER_MASK | NPC_IP_HDR_LEN_MASK, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU5_CPT_IP, 0xff, + NPC_IPNH_SCTP, + 0x00ff, + NPC_IP_VER_4 | NPC_IP_HDR_LEN_5, + NPC_IP_VER_MASK | NPC_IP_HDR_LEN_MASK, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU5_CPT_IP, 0xff, + NPC_IPNH_ICMP, + 0x00ff, + NPC_IP_VER_4 | NPC_IP_HDR_LEN_5, + NPC_IP_VER_MASK | NPC_IP_HDR_LEN_MASK, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU5_CPT_IP, 0xff, + NPC_IPNH_IGMP, + 0x00ff, + NPC_IP_VER_4 | NPC_IP_HDR_LEN_5, + NPC_IP_VER_MASK | NPC_IP_HDR_LEN_MASK, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU5_CPT_IP, 0xff, + NPC_IPNH_ESP, + 0x00ff, + NPC_IP_VER_4 | NPC_IP_HDR_LEN_5, + NPC_IP_VER_MASK | NPC_IP_HDR_LEN_MASK, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU5_CPT_IP, 0xff, + NPC_IPNH_AH, + 0x00ff, + NPC_IP_VER_4 | NPC_IP_HDR_LEN_5, + NPC_IP_VER_MASK | NPC_IP_HDR_LEN_MASK, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU5_CPT_IP, 0xff, + NPC_IPNH_GRE, + 0x00ff, + NPC_IP_VER_4 | NPC_IP_HDR_LEN_5, + NPC_IP_VER_MASK | NPC_IP_HDR_LEN_MASK, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU5_CPT_IP, 0xff, + NPC_IPNH_IP, + 0x00ff, + NPC_IP_VER_4 | NPC_IP_HDR_LEN_5, + NPC_IP_VER_MASK | NPC_IP_HDR_LEN_MASK, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU5_CPT_IP, 0xff, + NPC_IPNH_IP6, + 0x00ff, + NPC_IP_VER_4 | NPC_IP_HDR_LEN_5, + NPC_IP_VER_MASK | NPC_IP_HDR_LEN_MASK, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU5_CPT_IP, 0xff, + NPC_IPNH_MPLS, + 0x00ff, + NPC_IP_VER_4 | NPC_IP_HDR_LEN_5, + NPC_IP_VER_MASK | NPC_IP_HDR_LEN_MASK, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU5_CPT_IP, 0xff, + 0x0000, + 0x0000, + NPC_IP_VER_4 | NPC_IP_HDR_LEN_5, + NPC_IP_VER_MASK | NPC_IP_HDR_LEN_MASK, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU5_CPT_IP, 0xff, + NPC_IPNH_TCP, + 0x00ff, + NPC_IP_VER_4, + NPC_IP_VER_MASK, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU5_CPT_IP, 0xff, + NPC_IPNH_UDP, + 0x00ff, + NPC_IP_VER_4, + NPC_IP_VER_MASK, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU5_CPT_IP, 0xff, + NPC_IPNH_SCTP, + 0x00ff, + NPC_IP_VER_4, + NPC_IP_VER_MASK, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU5_CPT_IP, 0xff, + NPC_IPNH_ICMP, + 0x00ff, + NPC_IP_VER_4, + NPC_IP_VER_MASK, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU5_CPT_IP, 0xff, + NPC_IPNH_IGMP, + 0x00ff, + NPC_IP_VER_4, + NPC_IP_VER_MASK, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU5_CPT_IP, 0xff, + NPC_IPNH_ESP, + 0x00ff, + NPC_IP_VER_4, + NPC_IP_VER_MASK, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU5_CPT_IP, 0xff, + NPC_IPNH_AH, + 0x00ff, + NPC_IP_VER_4, + NPC_IP_VER_MASK, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU5_CPT_IP, 0xff, + NPC_IPNH_GRE, + 0x00ff, + NPC_IP_VER_4, + NPC_IP_VER_MASK, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU5_CPT_IP, 0xff, + NPC_IPNH_IP, + 0x00ff, + NPC_IP_VER_4, + NPC_IP_VER_MASK, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU5_CPT_IP, 0xff, + NPC_IPNH_IP6, + 0x00ff, + NPC_IP_VER_4, + NPC_IP_VER_MASK, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU5_CPT_IP, 0xff, + NPC_IPNH_MPLS, + 0x00ff, + NPC_IP_VER_4, + NPC_IP_VER_MASK, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU5_CPT_IP, 0xff, + 0x0000, + 0x0000, + NPC_IP_VER_4, + NPC_IP_VER_MASK, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU5_CPT_IP, 0xff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU5_CPT_IP6, 0xff, + 0x0000, + NPC_IP6_HOP_MASK, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU5_CPT_IP6, 0xff, + NPC_IPNH_TCP << 8, + 0xff00, + NPC_IP_VER_6, + NPC_IP_VER_MASK, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU5_CPT_IP6, 0xff, + NPC_IPNH_UDP << 8, + 0xff00, + NPC_IP_VER_6, + NPC_IP_VER_MASK, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU5_CPT_IP6, 0xff, + NPC_IPNH_SCTP << 8, + 0xff00, + NPC_IP_VER_6, + NPC_IP_VER_MASK, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU5_CPT_IP6, 0xff, + NPC_IPNH_ICMP << 8, + 0xff00, + NPC_IP_VER_6, + NPC_IP_VER_MASK, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU5_CPT_IP6, 0xff, + NPC_IPNH_ICMP6 << 8, + 0xff00, + NPC_IP_VER_6, + NPC_IP_VER_MASK, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU5_CPT_IP6, 0xff, + NPC_IPNH_GRE << 8, + 0xff00, + NPC_IP_VER_6, + NPC_IP_VER_MASK, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU5_CPT_IP6, 0xff, + NPC_IPNH_IP6 << 8, + 0xff00, + NPC_IP_VER_6, + NPC_IP_VER_MASK, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU5_CPT_IP6, 0xff, + NPC_IPNH_MPLS << 8, + 0xff00, + NPC_IP_VER_6, + NPC_IP_VER_MASK, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU5_CPT_IP6, 0xff, + NPC_IPNH_HOP << 8, + 0xff00, + NPC_IP_VER_6, + NPC_IP_VER_MASK, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU5_CPT_IP6, 0xff, + NPC_IPNH_DEST << 8, + 0xff00, + NPC_IP_VER_6, + NPC_IP_VER_MASK, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU5_CPT_IP6, 0xff, + NPC_IPNH_ROUT << 8, + 0xff00, + NPC_IP_VER_6, + NPC_IP_VER_MASK, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU5_CPT_IP6, 0xff, + NPC_IPNH_FRAG << 8, + 0xff00, + NPC_IP_VER_6, + NPC_IP_VER_MASK, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU5_CPT_IP6, 0xff, + NPC_IPNH_ESP << 8, + 0xff00, + NPC_IP_VER_6, + NPC_IP_VER_MASK, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU5_CPT_IP6, 0xff, + NPC_IPNH_AH << 8, + 0xff00, + NPC_IP_VER_6, + NPC_IP_VER_MASK, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU5_CPT_IP6, 0xff, + NPC_IPNH_MOBILITY << 8, + 0xff00, + NPC_IP_VER_6, + NPC_IP_VER_MASK, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU5_CPT_IP6, 0xff, + NPC_IPNH_HOSTID << 8, + 0xff00, + NPC_IP_VER_6, + NPC_IP_VER_MASK, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU5_CPT_IP6, 0xff, + NPC_IPNH_SHIM6 << 8, + 0xff00, + NPC_IP_VER_6, + NPC_IP_VER_MASK, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU5_CPT_IP6, 0xff, + 0x0000, + 0x0000, + NPC_IP_VER_6, + NPC_IP_VER_MASK, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU5_CPT_IP6, 0xff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU5_NGIO, 0xff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_NA, 0X00, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, +}; + +static struct npc_kpu_profile_cam kpu6_cam_entries[] = { + NPC_KPU_NOP_CAM, + NPC_KPU_NOP_CAM, + NPC_KPU_NOP_CAM, + NPC_KPU_NOP_CAM, + NPC_KPU_NOP_CAM, + NPC_KPU_NOP_CAM, + { + NPC_S_KPU6_IP6_EXT, 0xff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU6_IP6_FRAG, 0xff, + NPC_IPNH_TCP << 8, + 0xff00, + 0x0000, + NPC_IP6_FRAG_FRAGOFF, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU6_IP6_FRAG, 0xff, + NPC_IPNH_UDP << 8, + 0xff00, + 0x0000, + NPC_IP6_FRAG_FRAGOFF, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU6_IP6_FRAG, 0xff, + NPC_IPNH_SCTP << 8, + 0xff00, + 0x0000, + NPC_IP6_FRAG_FRAGOFF, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU6_IP6_FRAG, 0xff, + NPC_IPNH_ICMP << 8, + 0xff00, + 0x0000, + NPC_IP6_FRAG_FRAGOFF, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU6_IP6_FRAG, 0xff, + NPC_IPNH_ICMP6 << 8, + 0xff00, + 0x0000, + NPC_IP6_FRAG_FRAGOFF, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU6_IP6_FRAG, 0xff, + NPC_IPNH_ESP << 8, + 0xff00, + 0x0000, + NPC_IP6_FRAG_FRAGOFF, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU6_IP6_FRAG, 0xff, + NPC_IPNH_AH << 8, + 0xff00, + 0x0000, + NPC_IP6_FRAG_FRAGOFF, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU6_IP6_FRAG, 0xff, + NPC_IPNH_GRE << 8, + 0xff00, + 0x0000, + NPC_IP6_FRAG_FRAGOFF, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU6_IP6_FRAG, 0xff, + NPC_IPNH_IP6 << 8, + 0xff00, + 0x0000, + NPC_IP6_FRAG_FRAGOFF, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU6_IP6_FRAG, 0xff, + NPC_IPNH_MPLS << 8, + 0xff00, + 0x0000, + NPC_IP6_FRAG_FRAGOFF, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU6_IP6_FRAG, 0xff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU6_IP6_HOP_DEST, 0xff, + NPC_IPNH_TCP << 8, + 0xff00, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU6_IP6_HOP_DEST, 0xff, + NPC_IPNH_UDP << 8, + 0xff00, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU6_IP6_HOP_DEST, 0xff, + NPC_IPNH_SCTP << 8, + 0xff00, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU6_IP6_HOP_DEST, 0xff, + NPC_IPNH_ICMP << 8, + 0xff00, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU6_IP6_HOP_DEST, 0xff, + NPC_IPNH_ICMP6 << 8, + 0xff00, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU6_IP6_HOP_DEST, 0xff, + NPC_IPNH_ESP << 8, + 0xff00, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU6_IP6_HOP_DEST, 0xff, + NPC_IPNH_AH << 8, + 0xff00, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU6_IP6_HOP_DEST, 0xff, + NPC_IPNH_GRE << 8, + 0xff00, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU6_IP6_HOP_DEST, 0xff, + NPC_IPNH_IP6 << 8, + 0xff00, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU6_IP6_HOP_DEST, 0xff, + NPC_IPNH_MPLS << 8, + 0xff00, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU6_IP6_HOP_DEST, 0xff, + NPC_IPNH_ROUT << 8, + 0xff00, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU6_IP6_HOP_DEST, 0xff, + NPC_IPNH_FRAG << 8, + 0xff00, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU6_IP6_HOP_DEST, 0xff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU6_IP6_ROUT, 0xff, + NPC_IPNH_TCP << 8, + 0xff00, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU6_IP6_ROUT, 0xff, + NPC_IPNH_UDP << 8, + 0xff00, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU6_IP6_ROUT, 0xff, + NPC_IPNH_SCTP << 8, + 0xff00, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU6_IP6_ROUT, 0xff, + NPC_IPNH_ICMP << 8, + 0xff00, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU6_IP6_ROUT, 0xff, + NPC_IPNH_ICMP6 << 8, + 0xff00, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU6_IP6_ROUT, 0xff, + NPC_IPNH_ESP << 8, + 0xff00, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU6_IP6_ROUT, 0xff, + NPC_IPNH_AH << 8, + 0xff00, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU6_IP6_ROUT, 0xff, + NPC_IPNH_GRE << 8, + 0xff00, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU6_IP6_ROUT, 0xff, + NPC_IPNH_IP6 << 8, + 0xff00, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU6_IP6_ROUT, 0xff, + NPC_IPNH_MPLS << 8, + 0xff00, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU6_IP6_ROUT, 0xff, + NPC_IPNH_FRAG << 8, + 0xff00, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU6_IP6_ROUT, 0xff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU6_IP6_CPT_FRAG, 0xff, + NPC_IPNH_TCP << 8, + 0xff00, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU6_IP6_CPT_FRAG, 0xff, + NPC_IPNH_UDP << 8, + 0xff00, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU6_IP6_CPT_FRAG, 0xff, + NPC_IPNH_SCTP << 8, + 0xff00, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU6_IP6_CPT_FRAG, 0xff, + NPC_IPNH_ICMP << 8, + 0xff00, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU6_IP6_CPT_FRAG, 0xff, + NPC_IPNH_ICMP6 << 8, + 0xff00, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU6_IP6_CPT_FRAG, 0xff, + NPC_IPNH_ESP << 8, + 0xff00, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU6_IP6_CPT_FRAG, 0xff, + NPC_IPNH_AH << 8, + 0xff00, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU6_IP6_CPT_FRAG, 0xff, + NPC_IPNH_GRE << 8, + 0xff00, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU6_IP6_CPT_FRAG, 0xff, + NPC_IPNH_IP6 << 8, + 0xff00, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU6_IP6_CPT_FRAG, 0xff, + NPC_IPNH_MPLS << 8, + 0xff00, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU6_IP6_CPT_FRAG, 0xff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU6_IP6_CPT_HOP_DEST, 0xff, + NPC_IPNH_TCP << 8, + 0xff00, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU6_IP6_CPT_HOP_DEST, 0xff, + NPC_IPNH_UDP << 8, + 0xff00, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU6_IP6_CPT_HOP_DEST, 0xff, + NPC_IPNH_SCTP << 8, + 0xff00, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU6_IP6_CPT_HOP_DEST, 0xff, + NPC_IPNH_ICMP << 8, + 0xff00, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU6_IP6_CPT_HOP_DEST, 0xff, + NPC_IPNH_ICMP6 << 8, + 0xff00, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU6_IP6_CPT_HOP_DEST, 0xff, + NPC_IPNH_ESP << 8, + 0xff00, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU6_IP6_CPT_HOP_DEST, 0xff, + NPC_IPNH_AH << 8, + 0xff00, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU6_IP6_CPT_HOP_DEST, 0xff, + NPC_IPNH_GRE << 8, + 0xff00, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU6_IP6_CPT_HOP_DEST, 0xff, + NPC_IPNH_IP6 << 8, + 0xff00, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU6_IP6_CPT_HOP_DEST, 0xff, + NPC_IPNH_MPLS << 8, + 0xff00, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU6_IP6_CPT_HOP_DEST, 0xff, + NPC_IPNH_ROUT << 8, + 0xff00, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU6_IP6_CPT_HOP_DEST, 0xff, + NPC_IPNH_FRAG << 8, + 0xff00, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU6_IP6_CPT_HOP_DEST, 0xff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU6_IP6_CPT_ROUT, 0xff, + NPC_IPNH_TCP << 8, + 0xff00, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU6_IP6_CPT_ROUT, 0xff, + NPC_IPNH_UDP << 8, + 0xff00, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU6_IP6_CPT_ROUT, 0xff, + NPC_IPNH_SCTP << 8, + 0xff00, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU6_IP6_CPT_ROUT, 0xff, + NPC_IPNH_ICMP << 8, + 0xff00, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU6_IP6_CPT_ROUT, 0xff, + NPC_IPNH_ICMP6 << 8, + 0xff00, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU6_IP6_CPT_ROUT, 0xff, + NPC_IPNH_ESP << 8, + 0xff00, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU6_IP6_CPT_ROUT, 0xff, + NPC_IPNH_AH << 8, + 0xff00, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU6_IP6_CPT_ROUT, 0xff, + NPC_IPNH_GRE << 8, + 0xff00, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU6_IP6_CPT_ROUT, 0xff, + NPC_IPNH_IP6 << 8, + 0xff00, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU6_IP6_CPT_ROUT, 0xff, + NPC_IPNH_MPLS << 8, + 0xff00, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU6_IP6_CPT_ROUT, 0xff, + NPC_IPNH_FRAG << 8, + 0xff00, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU6_IP6_CPT_ROUT, 0xff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_NA, 0X00, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, +}; + +static struct npc_kpu_profile_cam kpu7_cam_entries[] = { + NPC_KPU_NOP_CAM, + NPC_KPU_NOP_CAM, + NPC_KPU_NOP_CAM, + NPC_KPU_NOP_CAM, + NPC_KPU_NOP_CAM, + NPC_KPU_NOP_CAM, + { + NPC_S_KPU7_IP6_EXT, 0xff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU7_IP6_ROUT, 0xff, + NPC_IPNH_TCP << 8, + 0xff00, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU7_IP6_ROUT, 0xff, + NPC_IPNH_UDP << 8, + 0xff00, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU7_IP6_ROUT, 0xff, + NPC_IPNH_SCTP << 8, + 0xff00, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU7_IP6_ROUT, 0xff, + NPC_IPNH_ICMP << 8, + 0xff00, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU7_IP6_ROUT, 0xff, + NPC_IPNH_ICMP6 << 8, + 0xff00, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU7_IP6_ROUT, 0xff, + NPC_IPNH_ESP << 8, + 0xff00, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU7_IP6_ROUT, 0xff, + NPC_IPNH_AH << 8, + 0xff00, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU7_IP6_ROUT, 0xff, + NPC_IPNH_GRE << 8, + 0xff00, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU7_IP6_ROUT, 0xff, + NPC_IPNH_IP6 << 8, + 0xff00, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU7_IP6_ROUT, 0xff, + NPC_IPNH_MPLS << 8, + 0xff00, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU7_IP6_ROUT, 0xff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU7_IP6_FRAG, 0xff, + NPC_IPNH_TCP << 8, + 0xff00, + 0x0000, + NPC_IP6_FRAG_FRAGOFF, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU7_IP6_FRAG, 0xff, + NPC_IPNH_UDP << 8, + 0xff00, + 0x0000, + NPC_IP6_FRAG_FRAGOFF, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU7_IP6_FRAG, 0xff, + NPC_IPNH_SCTP << 8, + 0xff00, + 0x0000, + NPC_IP6_FRAG_FRAGOFF, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU7_IP6_FRAG, 0xff, + NPC_IPNH_ICMP << 8, + 0xff00, + 0x0000, + NPC_IP6_FRAG_FRAGOFF, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU7_IP6_FRAG, 0xff, + NPC_IPNH_ICMP6 << 8, + 0xff00, + 0x0000, + NPC_IP6_FRAG_FRAGOFF, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU7_IP6_FRAG, 0xff, + NPC_IPNH_ESP << 8, + 0xff00, + 0x0000, + NPC_IP6_FRAG_FRAGOFF, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU7_IP6_FRAG, 0xff, + NPC_IPNH_AH << 8, + 0xff00, + 0x0000, + NPC_IP6_FRAG_FRAGOFF, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU7_IP6_FRAG, 0xff, + NPC_IPNH_GRE << 8, + 0xff00, + 0x0000, + NPC_IP6_FRAG_FRAGOFF, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU7_IP6_FRAG, 0xff, + NPC_IPNH_IP6 << 8, + 0xff00, + 0x0000, + NPC_IP6_FRAG_FRAGOFF, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU7_IP6_FRAG, 0xff, + NPC_IPNH_MPLS << 8, + 0xff00, + 0x0000, + NPC_IP6_FRAG_FRAGOFF, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU7_IP6_FRAG, 0xff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU7_CPT_IP6_FRAG, 0xff, + NPC_IPNH_TCP << 8, + 0xff00, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU7_CPT_IP6_FRAG, 0xff, + NPC_IPNH_UDP << 8, + 0xff00, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU7_CPT_IP6_FRAG, 0xff, + NPC_IPNH_SCTP << 8, + 0xff00, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU7_CPT_IP6_FRAG, 0xff, + NPC_IPNH_ICMP << 8, + 0xff00, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU7_CPT_IP6_FRAG, 0xff, + NPC_IPNH_ICMP6 << 8, + 0xff00, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU7_CPT_IP6_FRAG, 0xff, + NPC_IPNH_ESP << 8, + 0xff00, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU7_CPT_IP6_FRAG, 0xff, + NPC_IPNH_AH << 8, + 0xff00, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU7_CPT_IP6_FRAG, 0xff, + NPC_IPNH_GRE << 8, + 0xff00, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU7_CPT_IP6_FRAG, 0xff, + NPC_IPNH_IP6 << 8, + 0xff00, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU7_CPT_IP6_FRAG, 0xff, + NPC_IPNH_MPLS << 8, + 0xff00, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU7_CPT_IP6_FRAG, 0xff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_NA, 0X00, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, +}; + +static struct npc_kpu_profile_cam kpu8_cam_entries[] = { + NPC_KPU_NOP_CAM, + NPC_KPU_NOP_CAM, + NPC_KPU_NOP_CAM, + NPC_KPU_NOP_CAM, + NPC_KPU_NOP_CAM, + NPC_KPU_NOP_CAM, + { + NPC_S_KPU8_TCP, 0xff, + 0x0000, + 0x0000, + NPC_TCP_FLAGS_FIN, + NPC_TCP_FLAGS_MASK, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU8_TCP, 0xff, + 0x0000, + 0x0000, + 0x0000, + NPC_TCP_FLAGS_MASK, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU8_TCP, 0xff, + 0x0000, + 0x0000, + NPC_TCP_FLAGS_RST | NPC_TCP_FLAGS_FIN, + NPC_TCP_FLAGS_RST | NPC_TCP_FLAGS_FIN, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU8_TCP, 0xff, + 0x0000, + 0x0000, + NPC_TCP_FLAGS_URG | NPC_TCP_FLAGS_SYN, + NPC_TCP_FLAGS_URG | NPC_TCP_FLAGS_SYN, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU8_TCP, 0xff, + 0x0000, + 0x0000, + NPC_TCP_FLAGS_RST | NPC_TCP_FLAGS_SYN, + NPC_TCP_FLAGS_RST | NPC_TCP_FLAGS_SYN, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU8_TCP, 0xff, + 0x0000, + 0x0000, + NPC_TCP_FLAGS_SYN | NPC_TCP_FLAGS_FIN, + NPC_TCP_FLAGS_SYN | NPC_TCP_FLAGS_FIN, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU8_TCP, 0xff, + NPC_TCP_PORT_HTTP, + 0xffff, + NPC_TCP_DATA_OFFSET_5, + NPC_TCP_DATA_OFFSET_MASK, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU8_TCP, 0xff, + NPC_TCP_PORT_HTTPS, + 0xffff, + NPC_TCP_DATA_OFFSET_5, + NPC_TCP_DATA_OFFSET_MASK, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU8_TCP, 0xff, + NPC_TCP_PORT_PPTP, + 0xffff, + NPC_TCP_DATA_OFFSET_5, + NPC_TCP_DATA_OFFSET_MASK, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU8_TCP, 0xff, + 0x0000, + 0x0000, + NPC_TCP_DATA_OFFSET_5, + NPC_TCP_DATA_OFFSET_MASK, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU8_TCP, 0xff, + NPC_TCP_PORT_HTTP, + 0xffff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU8_TCP, 0xff, + NPC_TCP_PORT_HTTPS, + 0xffff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU8_TCP, 0xff, + NPC_TCP_PORT_PPTP, + 0xffff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU8_TCP, 0xff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU8_UDP, 0xff, + NPC_UDP_PORT_VXLAN, + 0xffff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU8_UDP, 0xff, + NPC_UDP_PORT_VXLANGPE, + 0xffff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU8_UDP, 0xff, + NPC_UDP_PORT_GENEVE, + 0xffff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU8_UDP, 0xff, + NPC_UDP_PORT_GTPC, + 0xffff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU8_UDP, 0xff, + NPC_UDP_PORT_GTPU, + 0xffff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU8_UDP, 0xff, + NPC_UDP_PORT_PTP_E, + 0xffff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU8_UDP, 0xff, + NPC_UDP_PORT_PTP_G, + 0xffff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU8_UDP, 0xff, + NPC_UDP_PORT_MPLS, + 0xffff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU8_UDP, 0xff, + NPC_UDP_PORT_ESP, + 0xffff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU8_UDP, 0xff, + 0x0000, + 0x0000, + NPC_UDP_PORT_ESP, + 0xffff, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU8_UDP, 0xff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU8_SCTP, 0xff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU8_ICMP, 0xff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU8_IGMP, 0xff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU8_ICMP6, 0xff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU8_AH, 0xff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU8_GRE, 0xff, + NPC_ETYPE_TRANS_ETH_BR, + 0xffff, + NPC_GRE_F_KEY, + 0xffff, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU8_GRE, 0xff, + NPC_ETYPE_TRANS_ETH_BR, + 0xffff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU8_GRE, 0xff, + NPC_ETYPE_MPLSU, + 0xffff, + 0x0000, + 0xffff, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU8_GRE, 0xff, + NPC_ETYPE_MPLSU, + 0xffff, + NPC_GRE_F_CSUM, + 0xffff, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU8_GRE, 0xff, + NPC_ETYPE_MPLSU, + 0xffff, + NPC_GRE_F_KEY, + 0xffff, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU8_GRE, 0xff, + NPC_ETYPE_MPLSU, + 0xffff, + NPC_GRE_F_SEQ, + 0xffff, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU8_GRE, 0xff, + NPC_ETYPE_MPLSU, + 0xffff, + NPC_GRE_F_CSUM | NPC_GRE_F_KEY, + 0xffff, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU8_GRE, 0xff, + NPC_ETYPE_MPLSU, + 0xffff, + NPC_GRE_F_CSUM | NPC_GRE_F_SEQ, + 0xffff, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU8_GRE, 0xff, + NPC_ETYPE_MPLSU, + 0xffff, + NPC_GRE_F_KEY | NPC_GRE_F_SEQ, + 0xffff, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU8_GRE, 0xff, + NPC_ETYPE_MPLSU, + 0xffff, + NPC_GRE_F_CSUM | NPC_GRE_F_KEY | NPC_GRE_F_SEQ, + 0xffff, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU8_GRE, 0xff, + NPC_ETYPE_MPLSM, + 0xffff, + 0x0000, + 0xffff, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU8_GRE, 0xff, + NPC_ETYPE_MPLSM, + 0xffff, + NPC_GRE_F_CSUM, + 0xffff, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU8_GRE, 0xff, + NPC_ETYPE_MPLSM, + 0xffff, + NPC_GRE_F_KEY, + 0xffff, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU8_GRE, 0xff, + NPC_ETYPE_MPLSM, + 0xffff, + NPC_GRE_F_SEQ, + 0xffff, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU8_GRE, 0xff, + NPC_ETYPE_MPLSM, + 0xffff, + NPC_GRE_F_CSUM | NPC_GRE_F_KEY, + 0xffff, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU8_GRE, 0xff, + NPC_ETYPE_MPLSM, + 0xffff, + NPC_GRE_F_CSUM | NPC_GRE_F_SEQ, + 0xffff, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU8_GRE, 0xff, + NPC_ETYPE_MPLSM, + 0xffff, + NPC_GRE_F_KEY | NPC_GRE_F_SEQ, + 0xffff, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU8_GRE, 0xff, + NPC_ETYPE_MPLSM, + 0xffff, + NPC_GRE_F_CSUM | NPC_GRE_F_KEY | NPC_GRE_F_SEQ, + 0xffff, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU8_GRE, 0xff, + NPC_ETYPE_NSH, + 0xffff, + 0x0000, + 0xffff, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU8_GRE, 0xff, + NPC_ETYPE_NSH, + 0xffff, + NPC_GRE_F_CSUM, + 0xffff, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU8_GRE, 0xff, + NPC_ETYPE_NSH, + 0xffff, + NPC_GRE_F_KEY, + 0xffff, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU8_GRE, 0xff, + NPC_ETYPE_NSH, + 0xffff, + NPC_GRE_F_SEQ, + 0xffff, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU8_GRE, 0xff, + NPC_ETYPE_NSH, + 0xffff, + NPC_GRE_F_CSUM | NPC_GRE_F_KEY, + 0xffff, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU8_GRE, 0xff, + NPC_ETYPE_NSH, + 0xffff, + NPC_GRE_F_CSUM | NPC_GRE_F_SEQ, + 0xffff, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU8_GRE, 0xff, + NPC_ETYPE_NSH, + 0xffff, + NPC_GRE_F_KEY | NPC_GRE_F_SEQ, + 0xffff, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU8_GRE, 0xff, + NPC_ETYPE_NSH, + 0xffff, + NPC_GRE_F_CSUM | NPC_GRE_F_KEY | NPC_GRE_F_SEQ, + 0xffff, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU8_GRE, 0xff, + NPC_ETYPE_IP, + 0xffff, + 0x0000, + 0xffff, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU8_GRE, 0xff, + NPC_ETYPE_IP, + 0xffff, + NPC_GRE_F_CSUM, + 0xffff, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU8_GRE, 0xff, + NPC_ETYPE_IP, + 0xffff, + NPC_GRE_F_KEY, + 0xffff, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU8_GRE, 0xff, + NPC_ETYPE_IP, + 0xffff, + NPC_GRE_F_SEQ, + 0xffff, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU8_GRE, 0xff, + NPC_ETYPE_IP, + 0xffff, + NPC_GRE_F_CSUM | NPC_GRE_F_KEY, + 0xffff, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU8_GRE, 0xff, + NPC_ETYPE_IP, + 0xffff, + NPC_GRE_F_CSUM | NPC_GRE_F_SEQ, + 0xffff, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU8_GRE, 0xff, + NPC_ETYPE_IP, + 0xffff, + NPC_GRE_F_KEY | NPC_GRE_F_SEQ, + 0xffff, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU8_GRE, 0xff, + NPC_ETYPE_IP, + 0xffff, + NPC_GRE_F_CSUM | NPC_GRE_F_KEY | NPC_GRE_F_SEQ, + 0xffff, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU8_GRE, 0xff, + NPC_ETYPE_IP6, + 0xffff, + 0x0000, + 0xffff, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU8_GRE, 0xff, + NPC_ETYPE_IP6, + 0xffff, + NPC_GRE_F_CSUM, + 0xffff, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU8_GRE, 0xff, + NPC_ETYPE_IP6, + 0xffff, + NPC_GRE_F_KEY, + 0xffff, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU8_GRE, 0xff, + NPC_ETYPE_IP6, + 0xffff, + NPC_GRE_F_SEQ, + 0xffff, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU8_GRE, 0xff, + NPC_ETYPE_IP6, + 0xffff, + NPC_GRE_F_CSUM | NPC_GRE_F_KEY, + 0xffff, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU8_GRE, 0xff, + NPC_ETYPE_IP6, + 0xffff, + NPC_GRE_F_CSUM | NPC_GRE_F_SEQ, + 0xffff, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU8_GRE, 0xff, + NPC_ETYPE_IP6, + 0xffff, + NPC_GRE_F_KEY | NPC_GRE_F_SEQ, + 0xffff, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU8_GRE, 0xff, + NPC_ETYPE_IP6, + 0xffff, + NPC_GRE_F_CSUM | NPC_GRE_F_KEY | NPC_GRE_F_SEQ, + 0xffff, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU8_GRE, 0xff, + 0x0000, + 0xffff, + NPC_GRE_F_ROUTE, + 0x4fff, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU8_GRE, 0xff, + 0x0000, + 0xffff, + 0x0000, + 0x4fff, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU8_GRE, 0xff, + 0x0000, + 0xffff, + 0x0000, + 0x0003, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU8_GRE, 0xff, + NPC_ETYPE_PPP, + 0xffff, + NPC_GRE_F_KEY | NPC_GRE_VER_1, + 0xffff, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU8_GRE, 0xff, + NPC_ETYPE_PPP, + 0xffff, + NPC_GRE_F_KEY | NPC_GRE_F_SEQ | NPC_GRE_VER_1, + 0xffff, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU8_GRE, 0xff, + NPC_ETYPE_PPP, + 0xffff, + NPC_GRE_F_KEY | NPC_GRE_F_ACK | NPC_GRE_VER_1, + 0xffff, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU8_GRE, 0xff, + NPC_ETYPE_PPP, + 0xffff, + NPC_GRE_F_KEY | NPC_GRE_F_SEQ | NPC_GRE_F_ACK | NPC_GRE_VER_1, + 0xffff, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU8_GRE, 0xff, + 0x0000, + 0xffff, + 0x2001, + 0xef7f, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU8_GRE, 0xff, + 0x0000, + 0xffff, + 0x0001, + 0x0003, + 0x0000, + 0x0000, + }, + { + NPC_S_NA, 0X00, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, +}; + +static struct npc_kpu_profile_cam kpu9_cam_entries[] = { + NPC_KPU_NOP_CAM, + NPC_KPU_NOP_CAM, + NPC_KPU_NOP_CAM, + NPC_KPU_NOP_CAM, + NPC_KPU_NOP_CAM, + NPC_KPU_NOP_CAM, + { + NPC_S_KPU9_TU_MPLS_IN_GRE, 0xff, + NPC_MPLS_S, + NPC_MPLS_S, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU9_TU_MPLS_IN_GRE, 0xff, + 0x0000, + NPC_MPLS_S, + NPC_MPLS_S, + NPC_MPLS_S, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU9_TU_MPLS_IN_GRE, 0xff, + 0x0000, + NPC_MPLS_S, + 0x0000, + NPC_MPLS_S, + NPC_MPLS_S, + NPC_MPLS_S, + }, + { + NPC_S_KPU9_TU_MPLS_IN_GRE, 0xff, + 0x0000, + NPC_MPLS_S, + 0x0000, + NPC_MPLS_S, + 0x0000, + NPC_MPLS_S, + }, + { + NPC_S_KPU9_TU_MPLS_IN_NSH, 0xff, + NPC_MPLS_S, + NPC_MPLS_S, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU9_TU_MPLS_IN_NSH, 0xff, + 0x0000, + NPC_MPLS_S, + NPC_MPLS_S, + NPC_MPLS_S, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU9_TU_MPLS_IN_NSH, 0xff, + 0x0000, + NPC_MPLS_S, + 0x0000, + NPC_MPLS_S, + NPC_MPLS_S, + NPC_MPLS_S, + }, + { + NPC_S_KPU9_TU_MPLS_IN_NSH, 0xff, + 0x0000, + NPC_MPLS_S, + 0x0000, + NPC_MPLS_S, + 0x0000, + NPC_MPLS_S, + }, + { + NPC_S_KPU9_TU_MPLS_IN_IP, 0xff, + NPC_MPLS_S, + NPC_MPLS_S, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU9_TU_MPLS_IN_IP, 0xff, + 0x0000, + NPC_MPLS_S, + NPC_MPLS_S, + NPC_MPLS_S, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU9_TU_MPLS_IN_IP, 0xff, + 0x0000, + NPC_MPLS_S, + 0x0000, + NPC_MPLS_S, + NPC_MPLS_S, + NPC_MPLS_S, + }, + { + NPC_S_KPU9_TU_MPLS_IN_IP, 0xff, + 0x0000, + NPC_MPLS_S, + 0x0000, + NPC_MPLS_S, + 0x0000, + NPC_MPLS_S, + }, + { + NPC_S_KPU9_TU_NSH_IN_GRE, 0xff, + NPC_NSH_NP_IP, + NPC_NSH_NP_MASK, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU9_TU_NSH_IN_GRE, 0xff, + NPC_NSH_NP_IP6, + NPC_NSH_NP_MASK, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU9_TU_NSH_IN_GRE, 0xff, + NPC_NSH_NP_ETH, + NPC_NSH_NP_MASK, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU9_TU_NSH_IN_GRE, 0xff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU9_VXLAN, 0xff, + 0x0000, + 0x0000, + NPC_VXLAN_I, + NPC_VXLAN_I, + 0x0000, + 0xffff, + }, + { + NPC_S_KPU9_VXLAN, 0xff, + 0x0000, + 0x0000, + 0x0000, + 0xffff, + 0x0000, + 0xffff, + }, + { + NPC_S_KPU9_VXLAN, 0xff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU9_VXLANGPE, 0xff, + 0x0000, + 0x0000, + NPC_VXLANGPE_P | NPC_VXLANGPE_I, + NPC_VXLANGPE_P | NPC_VXLANGPE_I, + NPC_VXLANGPE_NP_IP, + NPC_VXLANGPE_NP_MASK, + }, + { + NPC_S_KPU9_VXLANGPE, 0xff, + 0x0000, + 0x0000, + NPC_VXLANGPE_P | NPC_VXLANGPE_I, + NPC_VXLANGPE_P | NPC_VXLANGPE_I, + NPC_VXLANGPE_NP_IP6, + NPC_VXLANGPE_NP_MASK, + }, + { + NPC_S_KPU9_VXLANGPE, 0xff, + 0x0000, + 0x0000, + NPC_VXLANGPE_P | NPC_VXLANGPE_I, + NPC_VXLANGPE_P | NPC_VXLANGPE_I, + NPC_VXLANGPE_NP_ETH, + NPC_VXLANGPE_NP_MASK, + }, + { + NPC_S_KPU9_VXLANGPE, 0xff, + 0x0000, + 0x0000, + NPC_VXLANGPE_P | NPC_VXLANGPE_I, + NPC_VXLANGPE_P | NPC_VXLANGPE_I, + NPC_VXLANGPE_NP_NSH, + NPC_VXLANGPE_NP_MASK, + }, + { + NPC_S_KPU9_VXLANGPE, 0xff, + 0x0000, + 0x0000, + NPC_VXLANGPE_P | NPC_VXLANGPE_I, + NPC_VXLANGPE_P | NPC_VXLANGPE_I, + NPC_VXLANGPE_NP_MPLS, + NPC_VXLANGPE_NP_MASK, + }, + { + NPC_S_KPU9_VXLANGPE, 0xff, + 0x0000, + 0x0000, + NPC_VXLANGPE_P, + NPC_VXLANGPE_P | NPC_VXLANGPE_I, + NPC_VXLANGPE_NP_IP, + NPC_VXLANGPE_NP_MASK, + }, + { + NPC_S_KPU9_VXLANGPE, 0xff, + 0x0000, + 0x0000, + NPC_VXLANGPE_P, + NPC_VXLANGPE_P | NPC_VXLANGPE_I, + NPC_VXLANGPE_NP_IP6, + NPC_VXLANGPE_NP_MASK, + }, + { + NPC_S_KPU9_VXLANGPE, 0xff, + 0x0000, + 0x0000, + NPC_VXLANGPE_P, + NPC_VXLANGPE_P | NPC_VXLANGPE_I, + NPC_VXLANGPE_NP_ETH, + NPC_VXLANGPE_NP_MASK, + }, + { + NPC_S_KPU9_VXLANGPE, 0xff, + 0x0000, + 0x0000, + NPC_VXLANGPE_P, + NPC_VXLANGPE_P | NPC_VXLANGPE_I, + NPC_VXLANGPE_NP_NSH, + NPC_VXLANGPE_NP_MASK, + }, + { + NPC_S_KPU9_VXLANGPE, 0xff, + 0x0000, + 0x0000, + NPC_VXLANGPE_P, + NPC_VXLANGPE_P | NPC_VXLANGPE_I, + NPC_VXLANGPE_NP_MPLS, + NPC_VXLANGPE_NP_MASK, + }, + { + NPC_S_KPU9_VXLANGPE, 0xff, + 0x0000, + 0x0000, + NPC_VXLANGPE_P, + NPC_VXLANGPE_P, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU9_VXLANGPE, 0xff, + 0x0000, + 0x0000, + 0x0000, + NPC_VXLANGPE_P, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU9_GENEVE, 0xff, + 0x0000, + 0x0000, + 0x0000, + NPC_GENEVE_F_OAM | NPC_GENEVE_F_CRI_OPT, + NPC_ETYPE_TRANS_ETH_BR, + 0xffff, + }, + { + NPC_S_KPU9_GENEVE, 0xff, + 0x0000, + 0x0000, + NPC_GENEVE_F_OAM, + NPC_GENEVE_F_OAM | NPC_GENEVE_F_CRI_OPT, + NPC_ETYPE_TRANS_ETH_BR, + 0xffff, + }, + { + NPC_S_KPU9_GENEVE, 0xff, + 0x0000, + 0x0000, + NPC_GENEVE_F_CRI_OPT, + NPC_GENEVE_F_OAM | NPC_GENEVE_F_CRI_OPT, + NPC_ETYPE_TRANS_ETH_BR, + 0xffff, + }, + { + NPC_S_KPU9_GENEVE, 0xff, + 0x0000, + 0x0000, + NPC_GENEVE_F_OAM | NPC_GENEVE_F_CRI_OPT, + NPC_GENEVE_F_OAM | NPC_GENEVE_F_CRI_OPT, + NPC_ETYPE_TRANS_ETH_BR, + 0xffff, + }, + { + NPC_S_KPU9_GENEVE, 0xff, + 0x0000, + 0x0000, + 0x0000, + NPC_GENEVE_F_OAM | NPC_GENEVE_F_CRI_OPT, + NPC_ETYPE_IP, + 0xffff, + }, + { + NPC_S_KPU9_GENEVE, 0xff, + 0x0000, + 0x0000, + NPC_GENEVE_F_OAM, + NPC_GENEVE_F_OAM | NPC_GENEVE_F_CRI_OPT, + NPC_ETYPE_IP, + 0xffff, + }, + { + NPC_S_KPU9_GENEVE, 0xff, + 0x0000, + 0x0000, + NPC_GENEVE_F_CRI_OPT, + NPC_GENEVE_F_OAM | NPC_GENEVE_F_CRI_OPT, + NPC_ETYPE_IP, + 0xffff, + }, + { + NPC_S_KPU9_GENEVE, 0xff, + 0x0000, + 0x0000, + NPC_GENEVE_F_OAM | NPC_GENEVE_F_CRI_OPT, + NPC_GENEVE_F_OAM | NPC_GENEVE_F_CRI_OPT, + NPC_ETYPE_IP, + 0xffff, + }, + { + NPC_S_KPU9_GENEVE, 0xff, + 0x0000, + 0x0000, + 0x0000, + NPC_GENEVE_F_OAM | NPC_GENEVE_F_CRI_OPT, + NPC_ETYPE_IP6, + 0xffff, + }, + { + NPC_S_KPU9_GENEVE, 0xff, + 0x0000, + 0x0000, + NPC_GENEVE_F_OAM, + NPC_GENEVE_F_OAM | NPC_GENEVE_F_CRI_OPT, + NPC_ETYPE_IP6, + 0xffff, + }, + { + NPC_S_KPU9_GENEVE, 0xff, + 0x0000, + 0x0000, + NPC_GENEVE_F_CRI_OPT, + NPC_GENEVE_F_OAM | NPC_GENEVE_F_CRI_OPT, + NPC_ETYPE_IP6, + 0xffff, + }, + { + NPC_S_KPU9_GENEVE, 0xff, + 0x0000, + 0x0000, + NPC_GENEVE_F_OAM | NPC_GENEVE_F_CRI_OPT, + NPC_GENEVE_F_OAM | NPC_GENEVE_F_CRI_OPT, + NPC_ETYPE_IP6, + 0xffff, + }, + { + NPC_S_KPU9_GTPC, 0xff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU9_GTPU, 0xff, + 0x0000, + 0x0000, + NPC_GTP_PT_GTP | NPC_GTP_VER1, + NPC_GTP_PT_MASK | NPC_GTP_VER_MASK, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU9_TU_MPLS_IN_UDP, 0xff, + NPC_MPLS_S, + NPC_MPLS_S, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU9_TU_MPLS_IN_UDP, 0xff, + 0x0000, + NPC_MPLS_S, + NPC_MPLS_S, + NPC_MPLS_S, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU9_TU_MPLS_IN_UDP, 0xff, + 0x0000, + NPC_MPLS_S, + 0x0000, + NPC_MPLS_S, + NPC_MPLS_S, + NPC_MPLS_S, + }, + { + NPC_S_KPU9_TU_MPLS_IN_UDP, 0xff, + 0x0000, + NPC_MPLS_S, + 0x0000, + NPC_MPLS_S, + 0x0000, + NPC_MPLS_S, + }, + { + NPC_S_KPU9_ESP, 0xff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_NA, 0X00, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, +}; + +static struct npc_kpu_profile_cam kpu10_cam_entries[] = { + NPC_KPU_NOP_CAM, + NPC_KPU_NOP_CAM, + NPC_KPU_NOP_CAM, + NPC_KPU_NOP_CAM, + NPC_KPU_NOP_CAM, + NPC_KPU_NOP_CAM, + { + NPC_S_KPU10_TU_MPLS, 0xff, + NPC_MPLS_S, + NPC_MPLS_S, + NPC_IP_VER_4, + NPC_IP_VER_MASK, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU10_TU_MPLS, 0xff, + NPC_MPLS_S, + NPC_MPLS_S, + NPC_IP_VER_6, + NPC_IP_VER_MASK, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU10_TU_MPLS, 0xff, + NPC_MPLS_S, + NPC_MPLS_S, + 0x0000, + 0xffff, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU10_TU_MPLS, 0xff, + NPC_MPLS_S, + NPC_MPLS_S, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU10_TU_MPLS, 0xff, + 0x0000, + NPC_MPLS_S, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU10_TU_MPLS_PL, 0xff, + NPC_IP_VER_4, + NPC_IP_VER_MASK, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU10_TU_MPLS_PL, 0xff, + NPC_IP_VER_6, + NPC_IP_VER_MASK, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU10_TU_MPLS_PL, 0xff, + 0x0000, + 0xffff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU10_TU_MPLS_PL, 0xff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU10_TU_MPLS_IN_VXLANGPE, 0xff, + NPC_MPLS_S, + NPC_MPLS_S, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU10_TU_MPLS_IN_VXLANGPE, 0xff, + 0x0000, + NPC_MPLS_S, + NPC_MPLS_S, + NPC_MPLS_S, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU10_TU_MPLS_IN_VXLANGPE, 0xff, + 0x0000, + NPC_MPLS_S, + 0x0000, + NPC_MPLS_S, + NPC_MPLS_S, + NPC_MPLS_S, + }, + { + NPC_S_KPU10_TU_MPLS_IN_VXLANGPE, 0xff, + 0x0000, + NPC_MPLS_S, + 0x0000, + NPC_MPLS_S, + 0x0000, + NPC_MPLS_S, + }, + { + NPC_S_KPU10_TU_NSH_IN_VXLANGPE, 0xff, + NPC_NSH_NP_IP, + NPC_NSH_NP_MASK, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU10_TU_NSH_IN_VXLANGPE, 0xff, + NPC_NSH_NP_IP6, + NPC_NSH_NP_MASK, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU10_TU_NSH_IN_VXLANGPE, 0xff, + NPC_NSH_NP_ETH, + NPC_NSH_NP_MASK, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU10_TU_NSH_IN_VXLANGPE, 0xff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_NA, 0X00, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, +}; + +static struct npc_kpu_profile_cam kpu11_cam_entries[] = { + NPC_KPU_NOP_CAM, + NPC_KPU_NOP_CAM, + NPC_KPU_NOP_CAM, + NPC_KPU_NOP_CAM, + NPC_KPU_NOP_CAM, + NPC_KPU_NOP_CAM, + { + NPC_S_KPU11_TU_ETHER, 0xff, + NPC_ETYPE_IP, + 0xffff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU11_TU_ETHER, 0xff, + NPC_ETYPE_IP6, + 0xffff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU11_TU_ETHER, 0xff, + NPC_ETYPE_ARP, + 0xffff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU11_TU_ETHER, 0xff, + NPC_ETYPE_CTAG, + 0xffff, + NPC_ETYPE_IP, + 0xffff, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU11_TU_ETHER, 0xff, + NPC_ETYPE_CTAG, + 0xffff, + NPC_ETYPE_IP6, + 0xffff, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU11_TU_ETHER, 0xff, + NPC_ETYPE_CTAG, + 0xffff, + NPC_ETYPE_ARP, + 0xffff, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU11_TU_ETHER, 0xff, + NPC_ETYPE_CTAG, + 0xffff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU11_TU_ETHER, 0xff, + NPC_ETYPE_SBTAG, + 0xffff, + NPC_ETYPE_CTAG, + 0xffff, + NPC_ETYPE_IP, + 0xffff, + }, + { + NPC_S_KPU11_TU_ETHER, 0xff, + NPC_ETYPE_SBTAG, + 0xffff, + NPC_ETYPE_CTAG, + 0xffff, + NPC_ETYPE_IP6, + 0xffff, + }, + { + NPC_S_KPU11_TU_ETHER, 0xff, + NPC_ETYPE_SBTAG, + 0xffff, + NPC_ETYPE_CTAG, + 0xffff, + NPC_ETYPE_ARP, + 0xffff, + }, + { + NPC_S_KPU11_TU_ETHER, 0xff, + NPC_ETYPE_SBTAG, + 0xffff, + NPC_ETYPE_CTAG, + 0xffff, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU11_TU_ETHER, 0xff, + NPC_ETYPE_SBTAG, + 0xffff, + NPC_ETYPE_IP, + 0xffff, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU11_TU_ETHER, 0xff, + NPC_ETYPE_SBTAG, + 0xffff, + NPC_ETYPE_IP6, + 0xffff, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU11_TU_ETHER, 0xff, + NPC_ETYPE_SBTAG, + 0xffff, + NPC_ETYPE_ARP, + 0xffff, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU11_TU_ETHER, 0xff, + NPC_ETYPE_SBTAG, + 0xffff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU11_TU_ETHER, 0xff, + NPC_ETYPE_QINQ, + 0xffff, + NPC_ETYPE_CTAG, + 0xffff, + NPC_ETYPE_IP, + 0xffff, + }, + { + NPC_S_KPU11_TU_ETHER, 0xff, + NPC_ETYPE_QINQ, + 0xffff, + NPC_ETYPE_CTAG, + 0xffff, + NPC_ETYPE_IP6, + 0xffff, + }, + { + NPC_S_KPU11_TU_ETHER, 0xff, + NPC_ETYPE_QINQ, + 0xffff, + NPC_ETYPE_CTAG, + 0xffff, + NPC_ETYPE_ARP, + 0xffff, + }, + { + NPC_S_KPU11_TU_ETHER, 0xff, + NPC_ETYPE_QINQ, + 0xffff, + NPC_ETYPE_CTAG, + 0xffff, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU11_TU_ETHER, 0xff, + NPC_ETYPE_QINQ, + 0xffff, + NPC_ETYPE_IP, + 0xffff, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU11_TU_ETHER, 0xff, + NPC_ETYPE_QINQ, + 0xffff, + NPC_ETYPE_IP6, + 0xffff, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU11_TU_ETHER, 0xff, + NPC_ETYPE_QINQ, + 0xffff, + NPC_ETYPE_ARP, + 0xffff, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU11_TU_ETHER, 0xff, + NPC_ETYPE_QINQ, + 0xffff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU11_TU_ETHER, 0xff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU11_TU_PPP, 0xff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU11_TU_MPLS, 0xff, + NPC_MPLS_S, + NPC_MPLS_S, + NPC_IP_VER_4, + NPC_IP_VER_MASK, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU11_TU_MPLS, 0xff, + NPC_MPLS_S, + NPC_MPLS_S, + NPC_IP_VER_6, + NPC_IP_VER_MASK, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU11_TU_MPLS, 0xff, + NPC_MPLS_S, + NPC_MPLS_S, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU11_TU_MPLS, 0xff, + 0x0000, + NPC_MPLS_S, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU11_TU_MPLS_PL, 0xff, + NPC_IP_VER_4, + NPC_IP_VER_MASK, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU11_TU_MPLS_PL, 0xff, + NPC_IP_VER_6, + NPC_IP_VER_MASK, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU11_TU_MPLS_PL, 0xff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU11_TU_ETHER_IN_NSH, 0xff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_NA, 0X00, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, +}; + +static struct npc_kpu_profile_cam kpu12_cam_entries[] = { + NPC_KPU_NOP_CAM, + NPC_KPU_NOP_CAM, + NPC_KPU_NOP_CAM, + NPC_KPU_NOP_CAM, + NPC_KPU_NOP_CAM, + NPC_KPU_NOP_CAM, + { + NPC_S_KPU12_TU_IP, 0xff, + NPC_IPNH_TCP, + 0x00ff, + NPC_IP_VER_4 | NPC_IP_HDR_LEN_5, + NPC_IP_VER_MASK | NPC_IP_HDR_LEN_MASK, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU12_TU_IP, 0xff, + NPC_IPNH_UDP, + 0x00ff, + NPC_IP_VER_4 | NPC_IP_HDR_LEN_5, + NPC_IP_VER_MASK | NPC_IP_HDR_LEN_MASK, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU12_TU_IP, 0xff, + NPC_IPNH_SCTP, + 0x00ff, + NPC_IP_VER_4 | NPC_IP_HDR_LEN_5, + NPC_IP_VER_MASK | NPC_IP_HDR_LEN_MASK, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU12_TU_IP, 0xff, + NPC_IPNH_ICMP, + 0x00ff, + NPC_IP_VER_4 | NPC_IP_HDR_LEN_5, + NPC_IP_VER_MASK | NPC_IP_HDR_LEN_MASK, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU12_TU_IP, 0xff, + NPC_IPNH_IGMP, + 0x00ff, + NPC_IP_VER_4 | NPC_IP_HDR_LEN_5, + NPC_IP_VER_MASK | NPC_IP_HDR_LEN_MASK, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU12_TU_IP, 0xff, + NPC_IPNH_ESP, + 0x00ff, + NPC_IP_VER_4 | NPC_IP_HDR_LEN_5, + NPC_IP_VER_MASK | NPC_IP_HDR_LEN_MASK, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU12_TU_IP, 0xff, + NPC_IPNH_AH, + 0x00ff, + NPC_IP_VER_4 | NPC_IP_HDR_LEN_5, + NPC_IP_VER_MASK | NPC_IP_HDR_LEN_MASK, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU12_TU_IP, 0xff, + 0x0000, + 0x0000, + NPC_IP_VER_4 | NPC_IP_HDR_LEN_5, + NPC_IP_VER_MASK | NPC_IP_HDR_LEN_MASK, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU12_TU_IP, 0xff, + NPC_IPNH_TCP, + 0x00ff, + NPC_IP_VER_4, + NPC_IP_VER_MASK, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU12_TU_IP, 0xff, + NPC_IPNH_UDP, + 0x00ff, + NPC_IP_VER_4, + NPC_IP_VER_MASK, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU12_TU_IP, 0xff, + NPC_IPNH_SCTP, + 0x00ff, + NPC_IP_VER_4, + NPC_IP_VER_MASK, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU12_TU_IP, 0xff, + NPC_IPNH_ICMP, + 0x00ff, + NPC_IP_VER_4, + NPC_IP_VER_MASK, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU12_TU_IP, 0xff, + NPC_IPNH_IGMP, + 0x00ff, + NPC_IP_VER_4, + NPC_IP_VER_MASK, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU12_TU_IP, 0xff, + NPC_IPNH_ESP, + 0x00ff, + NPC_IP_VER_4, + NPC_IP_VER_MASK, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU12_TU_IP, 0xff, + NPC_IPNH_AH, + 0x00ff, + NPC_IP_VER_4, + NPC_IP_VER_MASK, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU12_TU_IP, 0xff, + 0x0000, + 0x0000, + NPC_IP_VER_4, + NPC_IP_VER_MASK, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU12_TU_IP, 0xff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU12_TU_ARP, 0xff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU12_TU_IP6, 0xff, + NPC_IPNH_TCP << 8, + 0xff00, + NPC_IP_VER_6, + NPC_IP_VER_MASK, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU12_TU_IP6, 0xff, + NPC_IPNH_UDP << 8, + 0xff00, + NPC_IP_VER_6, + NPC_IP_VER_MASK, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU12_TU_IP6, 0xff, + NPC_IPNH_SCTP << 8, + 0xff00, + NPC_IP_VER_6, + NPC_IP_VER_MASK, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU12_TU_IP6, 0xff, + NPC_IPNH_ICMP << 8, + 0xff00, + NPC_IP_VER_6, + NPC_IP_VER_MASK, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU12_TU_IP6, 0xff, + NPC_IPNH_ICMP6 << 8, + 0xff00, + NPC_IP_VER_6, + NPC_IP_VER_MASK, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU12_TU_IP6, 0xff, + NPC_IPNH_ESP << 8, + 0xff00, + NPC_IP_VER_6, + NPC_IP_VER_MASK, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU12_TU_IP6, 0xff, + NPC_IPNH_AH << 8, + 0xff00, + NPC_IP_VER_6, + NPC_IP_VER_MASK, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU12_TU_IP6, 0xff, + 0x0000, + 0x0000, + NPC_IP_VER_6, + NPC_IP_VER_MASK, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU12_TU_IP6, 0xff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_NA, 0X00, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, +}; + +static struct npc_kpu_profile_cam kpu13_cam_entries[] = { + NPC_KPU_NOP_CAM, + NPC_KPU_NOP_CAM, + NPC_KPU_NOP_CAM, + NPC_KPU_NOP_CAM, + NPC_KPU_NOP_CAM, + NPC_KPU_NOP_CAM, + { + NPC_S_KPU13_TU_IP6_EXT, 0xff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, +}; + +static struct npc_kpu_profile_cam kpu14_cam_entries[] = { + NPC_KPU_NOP_CAM, + NPC_KPU_NOP_CAM, + NPC_KPU_NOP_CAM, + NPC_KPU_NOP_CAM, + NPC_KPU_NOP_CAM, + NPC_KPU_NOP_CAM, + { + NPC_S_KPU14_TU_IP6_EXT, 0xff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, +}; + +static struct npc_kpu_profile_cam kpu15_cam_entries[] = { + NPC_KPU_NOP_CAM, + NPC_KPU_NOP_CAM, + NPC_KPU_NOP_CAM, + NPC_KPU_NOP_CAM, + NPC_KPU_NOP_CAM, + NPC_KPU_NOP_CAM, + { + NPC_S_KPU15_TU_TCP, 0xff, + 0x0000, + 0x0000, + NPC_TCP_FLAGS_FIN, + NPC_TCP_FLAGS_MASK, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU15_TU_TCP, 0xff, + 0x0000, + 0x0000, + 0x0000, + NPC_TCP_FLAGS_MASK, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU15_TU_TCP, 0xff, + 0x0000, + 0x0000, + NPC_TCP_FLAGS_RST | NPC_TCP_FLAGS_FIN, + NPC_TCP_FLAGS_RST | NPC_TCP_FLAGS_FIN, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU15_TU_TCP, 0xff, + 0x0000, + 0x0000, + NPC_TCP_FLAGS_URG | NPC_TCP_FLAGS_SYN, + NPC_TCP_FLAGS_URG | NPC_TCP_FLAGS_SYN, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU15_TU_TCP, 0xff, + 0x0000, + 0x0000, + NPC_TCP_FLAGS_RST | NPC_TCP_FLAGS_SYN, + NPC_TCP_FLAGS_RST | NPC_TCP_FLAGS_SYN, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU15_TU_TCP, 0xff, + 0x0000, + 0x0000, + NPC_TCP_FLAGS_SYN | NPC_TCP_FLAGS_FIN, + NPC_TCP_FLAGS_SYN | NPC_TCP_FLAGS_FIN, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU15_TU_TCP, 0xff, + NPC_TCP_PORT_HTTP, + 0xffff, + NPC_TCP_DATA_OFFSET_5, + NPC_TCP_DATA_OFFSET_MASK, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU15_TU_TCP, 0xff, + NPC_TCP_PORT_HTTPS, + 0xffff, + NPC_TCP_DATA_OFFSET_5, + NPC_TCP_DATA_OFFSET_MASK, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU15_TU_TCP, 0xff, + NPC_TCP_PORT_PPTP, + 0xffff, + NPC_TCP_DATA_OFFSET_5, + NPC_TCP_DATA_OFFSET_MASK, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU15_TU_TCP, 0xff, + 0x0000, + 0x0000, + NPC_TCP_DATA_OFFSET_5, + NPC_TCP_DATA_OFFSET_MASK, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU15_TU_TCP, 0xff, + NPC_TCP_PORT_HTTP, + 0xffff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU15_TU_TCP, 0xff, + NPC_TCP_PORT_HTTPS, + 0xffff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU15_TU_TCP, 0xff, + NPC_TCP_PORT_PPTP, + 0xffff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU15_TU_TCP, 0xff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU15_TU_UDP, 0xff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU15_TU_SCTP, 0xff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU15_TU_ICMP, 0xff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU15_TU_IGMP, 0xff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU15_TU_ICMP6, 0xff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU15_TU_ESP, 0xff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU15_TU_AH, 0xff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_NA, 0X00, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, +}; + +static struct npc_kpu_profile_cam kpu16_cam_entries[] = { + NPC_KPU_NOP_CAM, + NPC_KPU_NOP_CAM, + NPC_KPU_NOP_CAM, + NPC_KPU_NOP_CAM, + NPC_KPU_NOP_CAM, + NPC_KPU_NOP_CAM, + { + NPC_S_KPU16_TCP_DATA, 0xff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU16_HTTP_DATA, 0xff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU16_HTTPS_DATA, 0xff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU16_PPTP_DATA, 0xff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU16_UDP_DATA, 0xff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, + { + NPC_S_KPU16_UDP_PTP, 0xff, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + 0x0000, + }, +}; + +static struct npc_kpu_profile_action kpu1_action_entries[] = { + NPC_KPU_NOP_ACTION, + NPC_KPU_NOP_ACTION, + NPC_KPU_NOP_ACTION, + NPC_KPU_NOP_ACTION, + NPC_KPU_NOP_ACTION, + NPC_KPU_NOP_ACTION, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 8, 0, 6, 3, 0, + NPC_S_KPU5_IP, 14, 1, + NPC_LID_LA, NPC_LT_LA_ETHER, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 6, 0, 0, 3, 0, + NPC_S_KPU5_IP6, 14, 1, + NPC_LID_LA, NPC_LT_LA_ETHER, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 3, 0, + NPC_S_KPU5_ARP, 14, 1, + NPC_LID_LA, NPC_LT_LA_ETHER, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 3, 0, + NPC_S_KPU5_RARP, 14, 1, + NPC_LID_LA, NPC_LT_LA_ETHER, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 3, 0, + NPC_S_KPU5_PTP, 14, 1, + NPC_LID_LA, NPC_LT_LA_ETHER, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 3, 0, + NPC_S_KPU5_FCOE, 14, 1, + NPC_LID_LA, NPC_LT_LA_ETHER, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 8, 12, 0, 0, 0, + NPC_S_KPU2_CTAG2, 12, 1, + NPC_LID_LA, NPC_LT_LA_ETHER, + NPC_F_LA_U_HAS_TAG | NPC_F_LA_L_WITH_VLAN, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 4, 8, 12, 0, 0, + NPC_S_KPU2_CTAG, 12, 1, + NPC_LID_LA, NPC_LT_LA_ETHER, + NPC_F_LA_U_HAS_TAG | NPC_F_LA_L_WITH_VLAN, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 4, 8, 22, 0, 0, + NPC_S_KPU2_SBTAG, 12, 1, + NPC_LID_LA, NPC_LT_LA_ETHER, + NPC_F_LA_U_HAS_TAG | NPC_F_LA_L_WITH_VLAN, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 4, 8, 0, 0, 0, + NPC_S_KPU2_QINQ, 12, 1, + NPC_LID_LA, NPC_LT_LA_ETHER, + NPC_F_LA_U_HAS_TAG | NPC_F_LA_L_WITH_VLAN, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 8, 12, 26, 0, 0, + NPC_S_KPU2_ETAG, 12, 1, + NPC_LID_LA, NPC_LT_LA_ETHER, + NPC_F_LA_U_HAS_TAG | NPC_F_LA_L_WITH_ETAG, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 2, 6, 10, 2, 0, + NPC_S_KPU4_MPLS, 14, 1, + NPC_LID_LA, NPC_LT_LA_ETHER, + NPC_F_LA_L_WITH_MPLS, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 2, 6, 10, 2, 0, + NPC_S_KPU4_MPLS, 14, 1, + NPC_LID_LA, NPC_LT_LA_ETHER, + NPC_F_LA_L_WITH_MPLS, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 2, 0, 0, 2, 0, + NPC_S_KPU4_NSH, 14, 1, + NPC_LID_LA, NPC_LT_LA_ETHER, + NPC_F_LA_L_WITH_NSH, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 8, 12, 0, 1, 0, + NPC_S_KPU3_DSA, 12, 1, + NPC_LID_LA, NPC_LT_LA_ETHER, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 8, 12, 0, 2, 0, + NPC_S_KPU4_PPPOE, 12, 1, + NPC_LID_LA, NPC_LT_LA_ETHER, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 0, 1, + NPC_S_NA, 0, 1, + NPC_LID_LA, NPC_LT_LA_8023, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 0, 1, + NPC_S_NA, 0, 1, + NPC_LID_LA, NPC_LT_LA_8023, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 0, 1, + NPC_S_NA, 0, 1, + NPC_LID_LA, NPC_LT_LA_ETHER, + NPC_F_LA_L_UNK_ETYPE, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 8, 0, 6, 3, 0, + NPC_S_KPU5_IP, 22, 1, + NPC_LID_LA, NPC_LT_LA_IH_NIX_ETHER, + NPC_F_LA_U_HAS_IH_NIX, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 6, 0, 0, 3, 0, + NPC_S_KPU5_IP6, 22, 1, + NPC_LID_LA, NPC_LT_LA_IH_NIX_ETHER, + NPC_F_LA_U_HAS_IH_NIX, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 3, 0, + NPC_S_KPU5_ARP, 22, 1, + NPC_LID_LA, NPC_LT_LA_IH_NIX_ETHER, + NPC_F_LA_U_HAS_IH_NIX, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 3, 0, + NPC_S_KPU5_RARP, 22, 1, + NPC_LID_LA, NPC_LT_LA_IH_NIX_ETHER, + NPC_F_LA_U_HAS_IH_NIX, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 3, 0, + NPC_S_KPU5_PTP, 22, 1, + NPC_LID_LA, NPC_LT_LA_IH_NIX_ETHER, + NPC_F_LA_U_HAS_IH_NIX, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 3, 0, + NPC_S_KPU5_FCOE, 22, 1, + NPC_LID_LA, NPC_LT_LA_IH_NIX_ETHER, + NPC_F_LA_U_HAS_IH_NIX, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 8, 12, 0, 0, 0, + NPC_S_KPU2_CTAG2, 20, 1, + NPC_LID_LA, NPC_LT_LA_IH_NIX_ETHER, + NPC_F_LA_U_HAS_IH_NIX | NPC_F_LA_U_HAS_TAG + | NPC_F_LA_L_WITH_VLAN, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 4, 8, 0, 0, 0, + NPC_S_KPU2_CTAG, 20, 1, + NPC_LID_LA, NPC_LT_LA_IH_NIX_ETHER, + NPC_F_LA_U_HAS_IH_NIX | NPC_F_LA_U_HAS_TAG + | NPC_F_LA_L_WITH_VLAN, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 4, 8, 22, 0, 0, + NPC_S_KPU2_SBTAG, 20, 1, + NPC_LID_LA, NPC_LT_LA_IH_NIX_ETHER, + NPC_F_LA_U_HAS_IH_NIX | NPC_F_LA_U_HAS_TAG + | NPC_F_LA_L_WITH_VLAN, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 4, 8, 0, 0, 0, + NPC_S_KPU2_QINQ, 20, 1, + NPC_LID_LA, NPC_LT_LA_IH_NIX_ETHER, + NPC_F_LA_U_HAS_IH_NIX | NPC_F_LA_U_HAS_TAG + | NPC_F_LA_L_WITH_VLAN, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 8, 12, 26, 0, 0, + NPC_S_KPU2_ETAG, 20, 1, + NPC_LID_LA, NPC_LT_LA_IH_NIX_ETHER, + NPC_F_LA_U_HAS_IH_NIX | NPC_F_LA_U_HAS_TAG + | NPC_F_LA_L_WITH_ETAG, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 2, 6, 10, 2, 0, + NPC_S_KPU4_MPLS, 22, 1, + NPC_LID_LA, NPC_LT_LA_IH_NIX_ETHER, + NPC_F_LA_U_HAS_IH_NIX | NPC_F_LA_L_WITH_MPLS, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 2, 6, 10, 2, 0, + NPC_S_KPU4_MPLS, 22, 1, + NPC_LID_LA, NPC_LT_LA_IH_NIX_ETHER, + NPC_F_LA_U_HAS_IH_NIX | NPC_F_LA_L_WITH_MPLS, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 2, 0, 0, 2, 0, + NPC_S_KPU4_NSH, 22, 1, + NPC_LID_LA, NPC_LT_LA_IH_NIX_ETHER, + NPC_F_LA_U_HAS_IH_NIX | NPC_F_LA_L_WITH_NSH, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 0, 1, + NPC_S_NA, 0, 1, + NPC_LID_LA, NPC_LT_LA_IH_NIX_ETHER, + NPC_F_LA_U_HAS_IH_NIX | NPC_F_LA_L_UNK_ETYPE, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_LA, NPC_EC_IH_LENGTH, + 0, 0, 0, 0, 1, + NPC_S_NA, 0, 1, + NPC_LID_LA, NPC_LT_LA_ETHER, + NPC_F_LA_L_UNK_ETYPE, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 4, 8, 16, 0, 0, + NPC_S_KPU2_EXDSA, 12, 1, + NPC_LID_LA, NPC_LT_LA_ETHER, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 4, 8, 12, 2, 0, + NPC_S_KPU4_FDSA, 12, 1, + NPC_LID_LA, NPC_LT_LA_ETHER, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_LA, NPC_EC_EDSA_UNK, + 0, 0, 0, 0, 1, + NPC_S_NA, 0, 1, + NPC_LID_LA, NPC_LT_LA_ETHER, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 8, 0, 6, 3, 0, + NPC_S_KPU5_IP, 30, 1, + NPC_LID_LA, NPC_LT_LA_HIGIG2_ETHER, + NPC_F_LA_U_HAS_HIGIG2, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 6, 0, 0, 3, 0, + NPC_S_KPU5_IP6, 30, 1, + NPC_LID_LA, NPC_LT_LA_HIGIG2_ETHER, + NPC_F_LA_U_HAS_HIGIG2, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 3, 0, + NPC_S_KPU5_ARP, 30, 1, + NPC_LID_LA, NPC_LT_LA_HIGIG2_ETHER, + NPC_F_LA_U_HAS_HIGIG2, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 3, 0, + NPC_S_KPU5_RARP, 30, 1, + NPC_LID_LA, NPC_LT_LA_HIGIG2_ETHER, + NPC_F_LA_U_HAS_HIGIG2, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 3, 0, + NPC_S_KPU5_PTP, 30, 1, + NPC_LID_LA, NPC_LT_LA_HIGIG2_ETHER, + NPC_F_LA_U_HAS_HIGIG2, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 3, 0, + NPC_S_KPU5_FCOE, 30, 1, + NPC_LID_LA, NPC_LT_LA_HIGIG2_ETHER, + NPC_F_LA_U_HAS_HIGIG2, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 8, 12, 0, 0, 0, + NPC_S_KPU2_CTAG2, 28, 1, + NPC_LID_LA, NPC_LT_LA_HIGIG2_ETHER, + NPC_F_LA_U_HAS_HIGIG2 | NPC_F_LA_U_HAS_TAG + | NPC_F_LA_L_WITH_VLAN, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 4, 8, 0, 0, 0, + NPC_S_KPU2_CTAG, 28, 1, + NPC_LID_LA, NPC_LT_LA_HIGIG2_ETHER, + NPC_F_LA_U_HAS_HIGIG2 | NPC_F_LA_U_HAS_TAG + | NPC_F_LA_L_WITH_VLAN, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 4, 8, 22, 0, 0, + NPC_S_KPU2_SBTAG, 28, 1, + NPC_LID_LA, NPC_LT_LA_HIGIG2_ETHER, + NPC_F_LA_U_HAS_HIGIG2 | NPC_F_LA_U_HAS_TAG + | NPC_F_LA_L_WITH_VLAN, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 4, 8, 0, 0, 0, + NPC_S_KPU2_QINQ, 28, 1, + NPC_LID_LA, NPC_LT_LA_HIGIG2_ETHER, + NPC_F_LA_U_HAS_HIGIG2 | NPC_F_LA_U_HAS_TAG + | NPC_F_LA_L_WITH_VLAN, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 8, 12, 26, 0, 0, + NPC_S_KPU2_ETAG, 28, 1, + NPC_LID_LA, NPC_LT_LA_HIGIG2_ETHER, + NPC_F_LA_U_HAS_HIGIG2 | NPC_F_LA_U_HAS_TAG + | NPC_F_LA_L_WITH_ETAG, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 2, 6, 10, 2, 0, + NPC_S_KPU4_MPLS, 30, 1, + NPC_LID_LA, NPC_LT_LA_HIGIG2_ETHER, + NPC_F_LA_U_HAS_HIGIG2 | NPC_F_LA_L_WITH_MPLS, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 2, 6, 10, 2, 0, + NPC_S_KPU4_MPLS, 30, 1, + NPC_LID_LA, NPC_LT_LA_HIGIG2_ETHER, + NPC_F_LA_U_HAS_HIGIG2 | NPC_F_LA_L_WITH_MPLS, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 2, 0, 0, 2, 0, + NPC_S_KPU4_NSH, 30, 1, + NPC_LID_LA, NPC_LT_LA_HIGIG2_ETHER, + NPC_F_LA_U_HAS_HIGIG2 | NPC_F_LA_L_WITH_NSH, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 0, 1, + NPC_S_NA, 0, 1, + NPC_LID_LA, NPC_LT_LA_HIGIG2_ETHER, + NPC_F_LA_U_HAS_HIGIG2 | NPC_F_LA_L_UNK_ETYPE, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 8, 0, 6, 3, 0, + NPC_S_KPU5_IP, 38, 1, + NPC_LID_LA, NPC_LT_LA_IH_NIX_HIGIG2_ETHER, + NPC_F_LA_U_HAS_IH_NIX | NPC_F_LA_U_HAS_HIGIG2, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 6, 0, 0, 3, 0, + NPC_S_KPU5_IP6, 38, 1, + NPC_LID_LA, NPC_LT_LA_IH_NIX_HIGIG2_ETHER, + NPC_F_LA_U_HAS_IH_NIX | NPC_F_LA_U_HAS_HIGIG2, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 3, 0, + NPC_S_KPU5_ARP, 38, 1, + NPC_LID_LA, NPC_LT_LA_IH_NIX_HIGIG2_ETHER, + NPC_F_LA_U_HAS_IH_NIX | NPC_F_LA_U_HAS_HIGIG2, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 3, 0, + NPC_S_KPU5_RARP, 38, 1, + NPC_LID_LA, NPC_LT_LA_IH_NIX_HIGIG2_ETHER, + NPC_F_LA_U_HAS_IH_NIX | NPC_F_LA_U_HAS_HIGIG2, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 3, 0, + NPC_S_KPU5_PTP, 38, 1, + NPC_LID_LA, NPC_LT_LA_IH_NIX_HIGIG2_ETHER, + NPC_F_LA_U_HAS_IH_NIX | NPC_F_LA_U_HAS_HIGIG2, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 3, 0, + NPC_S_KPU5_FCOE, 38, 1, + NPC_LID_LA, NPC_LT_LA_IH_NIX_HIGIG2_ETHER, + NPC_F_LA_U_HAS_IH_NIX | NPC_F_LA_U_HAS_HIGIG2, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 8, 12, 0, 0, 0, + NPC_S_KPU2_CTAG2, 36, 1, + NPC_LID_LA, NPC_LT_LA_IH_NIX_HIGIG2_ETHER, + NPC_F_LA_U_HAS_IH_NIX | NPC_F_LA_U_HAS_HIGIG2 + | NPC_F_LA_U_HAS_TAG | NPC_F_LA_L_WITH_VLAN, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 4, 8, 0, 0, 0, + NPC_S_KPU2_CTAG, 36, 1, + NPC_LID_LA, NPC_LT_LA_IH_NIX_HIGIG2_ETHER, + NPC_F_LA_U_HAS_IH_NIX | NPC_F_LA_U_HAS_HIGIG2 + | NPC_F_LA_U_HAS_TAG | NPC_F_LA_L_WITH_VLAN, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 4, 8, 22, 0, 0, + NPC_S_KPU2_SBTAG, 36, 1, + NPC_LID_LA, NPC_LT_LA_IH_NIX_HIGIG2_ETHER, + NPC_F_LA_U_HAS_IH_NIX | NPC_F_LA_U_HAS_HIGIG2 + | NPC_F_LA_U_HAS_TAG | NPC_F_LA_L_WITH_VLAN, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 4, 8, 0, 0, 0, + NPC_S_KPU2_QINQ, 36, 1, + NPC_LID_LA, NPC_LT_LA_IH_NIX_HIGIG2_ETHER, + NPC_F_LA_U_HAS_IH_NIX | NPC_F_LA_U_HAS_HIGIG2 + | NPC_F_LA_U_HAS_TAG | NPC_F_LA_L_WITH_VLAN, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 8, 12, 26, 0, 0, + NPC_S_KPU2_ETAG, 36, 1, + NPC_LID_LA, NPC_LT_LA_IH_NIX_HIGIG2_ETHER, + NPC_F_LA_U_HAS_IH_NIX | NPC_F_LA_U_HAS_HIGIG2 + | NPC_F_LA_U_HAS_TAG | NPC_F_LA_L_WITH_ETAG, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 2, 6, 10, 2, 0, + NPC_S_KPU4_MPLS, 38, 1, + NPC_LID_LA, NPC_LT_LA_IH_NIX_HIGIG2_ETHER, + NPC_F_LA_U_HAS_IH_NIX | NPC_F_LA_U_HAS_HIGIG2 + | NPC_F_LA_L_WITH_MPLS, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 2, 6, 10, 2, 0, + NPC_S_KPU4_MPLS, 38, 1, + NPC_LID_LA, NPC_LT_LA_IH_NIX_HIGIG2_ETHER, + NPC_F_LA_U_HAS_IH_NIX | NPC_F_LA_U_HAS_HIGIG2 + | NPC_F_LA_L_WITH_MPLS, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 2, 0, 0, 2, 0, + NPC_S_KPU4_NSH, 38, 1, + NPC_LID_LA, NPC_LT_LA_IH_NIX_HIGIG2_ETHER, + NPC_F_LA_U_HAS_IH_NIX | NPC_F_LA_U_HAS_HIGIG2 + | NPC_F_LA_L_WITH_NSH, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 0, 1, + NPC_S_NA, 0, 1, + NPC_LID_LA, NPC_LT_LA_IH_NIX_HIGIG2_ETHER, + NPC_F_LA_U_HAS_IH_NIX | NPC_F_LA_U_HAS_HIGIG2 + | NPC_F_LA_L_UNK_ETYPE, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 8, 0, 6, 3, 0, + NPC_S_KPU5_IP, 14, 0, + NPC_LID_LA, NPC_LT_NA, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 6, 0, 0, 3, 0, + NPC_S_KPU5_IP6, 14, 0, + NPC_LID_LA, NPC_LT_NA, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 3, 0, + NPC_S_KPU5_ARP, 14, 0, + NPC_LID_LA, NPC_LT_NA, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 3, 0, + NPC_S_KPU5_RARP, 14, 0, + NPC_LID_LA, NPC_LT_NA, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 3, 0, + NPC_S_KPU5_PTP, 14, 0, + NPC_LID_LA, NPC_LT_NA, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 3, 0, + NPC_S_KPU5_FCOE, 14, 0, + NPC_LID_LA, NPC_LT_NA, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 8, 12, 0, 0, 0, + NPC_S_KPU2_CTAG2, 12, 0, + NPC_LID_LA, NPC_LT_NA, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 4, 8, 0, 0, 0, + NPC_S_KPU2_CTAG, 12, 0, + NPC_LID_LA, NPC_LT_NA, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 4, 8, 22, 0, 0, + NPC_S_KPU2_SBTAG, 12, 0, + NPC_LID_LA, NPC_LT_NA, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 4, 8, 0, 0, 0, + NPC_S_KPU2_QINQ, 12, 0, + NPC_LID_LA, NPC_LT_NA, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 8, 12, 26, 0, 0, + NPC_S_KPU2_ETAG, 12, 0, + NPC_LID_LA, NPC_LT_NA, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 2, 6, 10, 2, 0, + NPC_S_KPU4_MPLS, 14, 0, + NPC_LID_LA, NPC_LT_NA, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 2, 6, 10, 2, 0, + NPC_S_KPU4_MPLS, 14, 0, + NPC_LID_LA, NPC_LT_NA, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 2, 0, 0, 2, 0, + NPC_S_KPU4_NSH, 14, 0, + NPC_LID_LA, NPC_LT_NA, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 0, 1, + NPC_S_NA, 0, 0, + NPC_LID_LA, NPC_LT_NA, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 8, 0, 6, 3, 0, + NPC_S_KPU5_CPT_IP, 14, 1, + NPC_LID_LA, NPC_LT_LA_CPT_HDR, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 6, 0, 0, 3, 0, + NPC_S_KPU5_CPT_IP6, 14, 1, + NPC_LID_LA, NPC_LT_LA_CPT_HDR, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 4, 8, 0, 0, 0, + NPC_S_KPU2_CPT_CTAG, 12, 1, + NPC_LID_LA, NPC_LT_LA_CPT_HDR, + NPC_F_LA_U_HAS_TAG | NPC_F_LA_L_WITH_VLAN, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 4, 8, 0, 0, 0, + NPC_S_KPU2_CPT_QINQ, 12, 1, + NPC_LID_LA, NPC_LT_LA_CPT_HDR, + NPC_F_LA_U_HAS_TAG | NPC_F_LA_L_WITH_VLAN, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 12, 0, 0, 1, 0, + NPC_S_KPU3_VLAN_EXDSA, 12, 1, + NPC_LID_LA, NPC_LT_LA_ETHER, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_LA, NPC_EC_L2_K1, + 0, 0, 0, 0, 1, + NPC_S_NA, 0, 0, + NPC_LID_LA, NPC_LT_NA, + 0, + 0, 0, 0, 0, + }, +}; + +static struct npc_kpu_profile_action kpu2_action_entries[] = { + NPC_KPU_NOP_ACTION, + NPC_KPU_NOP_ACTION, + NPC_KPU_NOP_ACTION, + NPC_KPU_NOP_ACTION, + NPC_KPU_NOP_ACTION, + NPC_KPU_NOP_ACTION, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 8, 0, 6, 2, 0, + NPC_S_KPU5_IP, 6, 1, + NPC_LID_LB, NPC_LT_LB_CTAG, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 6, 0, 0, 2, 0, + NPC_S_KPU5_IP6, 6, 1, + NPC_LID_LB, NPC_LT_LB_CTAG, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 2, 0, + NPC_S_KPU5_ARP, 6, 1, + NPC_LID_LB, NPC_LT_LB_CTAG, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 2, 0, + NPC_S_KPU5_RARP, 6, 1, + NPC_LID_LB, NPC_LT_LB_CTAG, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 2, 0, + NPC_S_KPU5_PTP, 6, 1, + NPC_LID_LB, NPC_LT_LB_CTAG, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 2, 0, + NPC_S_KPU5_FCOE, 6, 1, + NPC_LID_LB, NPC_LT_LB_CTAG, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 2, 6, 10, 1, 0, + NPC_S_KPU4_MPLS, 6, 1, + NPC_LID_LB, NPC_LT_LB_CTAG, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 2, 6, 10, 1, 0, + NPC_S_KPU4_MPLS, 6, 1, + NPC_LID_LB, NPC_LT_LB_CTAG, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 2, 0, 0, 1, 0, + NPC_S_KPU4_NSH, 6, 1, + NPC_LID_LB, NPC_LT_LB_CTAG, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 2, 0, + NPC_S_KPU5_NGIO, 6, 1, + NPC_LID_LB, NPC_LT_LB_CTAG, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 8, 0, 6, 2, 0, + NPC_S_KPU5_IP, 14, 1, + NPC_LID_LB, NPC_LT_LB_PPPOE, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 6, 0, 0, 2, 0, + NPC_S_KPU5_IP6, 14, 1, + NPC_LID_LB, NPC_LT_LB_PPPOE, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 0, 1, + NPC_S_NA, 0, 1, + NPC_LID_LB, NPC_LT_LB_CTAG, + NPC_F_LB_U_UNK_ETYPE, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 8, 0, 6, 2, 0, + NPC_S_KPU5_IP, 10, 1, + NPC_LID_LB, NPC_LT_LB_STAG_QINQ, + NPC_F_LB_U_MORE_TAG | NPC_F_LB_L_WITH_CTAG, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 6, 0, 0, 2, 0, + NPC_S_KPU5_IP6, 10, 1, + NPC_LID_LB, NPC_LT_LB_STAG_QINQ, + NPC_F_LB_U_MORE_TAG | NPC_F_LB_L_WITH_CTAG, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 2, 0, + NPC_S_KPU5_ARP, 10, 1, + NPC_LID_LB, NPC_LT_LB_STAG_QINQ, + NPC_F_LB_U_MORE_TAG | NPC_F_LB_L_WITH_CTAG, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 2, 0, + NPC_S_KPU5_RARP, 10, 1, + NPC_LID_LB, NPC_LT_LB_STAG_QINQ, + NPC_F_LB_U_MORE_TAG | NPC_F_LB_L_WITH_CTAG, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 2, 0, + NPC_S_KPU5_PTP, 10, 1, + NPC_LID_LB, NPC_LT_LB_STAG_QINQ, + NPC_F_LB_U_MORE_TAG | NPC_F_LB_L_WITH_CTAG, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 2, 0, + NPC_S_KPU5_FCOE, 10, 1, + NPC_LID_LB, NPC_LT_LB_STAG_QINQ, + NPC_F_LB_U_MORE_TAG | NPC_F_LB_L_WITH_CTAG, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 2, 6, 10, 1, 0, + NPC_S_KPU4_MPLS, 10, 1, + NPC_LID_LB, NPC_LT_LB_STAG_QINQ, + NPC_F_LB_U_MORE_TAG | NPC_F_LB_L_WITH_CTAG, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 2, 6, 10, 1, 0, + NPC_S_KPU4_MPLS, 10, 1, + NPC_LID_LB, NPC_LT_LB_STAG_QINQ, + NPC_F_LB_U_MORE_TAG | NPC_F_LB_L_WITH_CTAG, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 2, 0, 0, 1, 0, + NPC_S_KPU4_NSH, 10, 1, + NPC_LID_LB, NPC_LT_LB_STAG_QINQ, + NPC_F_LB_U_MORE_TAG | NPC_F_LB_L_WITH_CTAG, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 0, 1, + NPC_S_NA, 0, 1, + NPC_LID_LB, NPC_LT_LB_STAG_QINQ, + NPC_F_LB_U_MORE_TAG | NPC_F_LB_L_WITH_CTAG_UNK, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 2, 6, 0, 0, 0, + NPC_S_KPU3_CTAG, 10, 1, + NPC_LID_LB, NPC_LT_LB_STAG_QINQ, + NPC_F_LB_U_MORE_TAG | NPC_F_LB_L_WITH_STAG_CTAG, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 2, 6, 0, 0, 0, + NPC_S_KPU3_STAG, 10, 1, + NPC_LID_LB, NPC_LT_LB_STAG_QINQ, + NPC_F_LB_U_MORE_TAG | NPC_F_LB_L_WITH_STAG_STAG, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 8, 0, 6, 2, 0, + NPC_S_KPU5_IP, 24, 1, + NPC_LID_LB, NPC_LT_LB_BTAG, + NPC_F_LB_U_MORE_TAG | NPC_F_LB_L_WITH_ITAG, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 6, 0, 0, 2, 0, + NPC_S_KPU5_IP6, 24, 1, + NPC_LID_LB, NPC_LT_LB_BTAG, + NPC_F_LB_U_MORE_TAG | NPC_F_LB_L_WITH_ITAG, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 2, 0, + NPC_S_KPU5_ARP, 24, 1, + NPC_LID_LB, NPC_LT_LB_BTAG, + NPC_F_LB_U_MORE_TAG | NPC_F_LB_L_WITH_ITAG, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 2, 0, + NPC_S_KPU5_RARP, 24, 1, + NPC_LID_LB, NPC_LT_LB_BTAG, + NPC_F_LB_U_MORE_TAG | NPC_F_LB_L_WITH_ITAG, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 2, 0, + NPC_S_KPU5_PTP, 24, 1, + NPC_LID_LB, NPC_LT_LB_BTAG, + NPC_F_LB_U_MORE_TAG | NPC_F_LB_L_WITH_ITAG, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 2, 0, + NPC_S_KPU5_FCOE, 24, 1, + NPC_LID_LB, NPC_LT_LB_BTAG, + NPC_F_LB_U_MORE_TAG | NPC_F_LB_L_WITH_ITAG, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 2, 6, 10, 1, 0, + NPC_S_KPU4_MPLS, 24, 1, + NPC_LID_LB, NPC_LT_LB_BTAG, + NPC_F_LB_U_MORE_TAG | NPC_F_LB_L_WITH_ITAG, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 2, 6, 10, 1, 0, + NPC_S_KPU4_MPLS, 24, 1, + NPC_LID_LB, NPC_LT_LB_BTAG, + NPC_F_LB_U_MORE_TAG | NPC_F_LB_L_WITH_ITAG, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 2, 0, 0, 1, 0, + NPC_S_KPU4_NSH, 24, 1, + NPC_LID_LB, NPC_LT_LB_BTAG, + NPC_F_LB_U_MORE_TAG | NPC_F_LB_L_WITH_ITAG, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 2, 0, 0, 0, 0, + NPC_S_KPU3_STAG, 24, 1, + NPC_LID_LB, NPC_LT_LB_BTAG, + NPC_F_LB_U_MORE_TAG | NPC_F_LB_L_WITH_ITAG_STAG, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 2, 0, 0, 0, 0, + NPC_S_KPU3_CTAG, 24, 1, + NPC_LID_LB, NPC_LT_LB_BTAG, + NPC_F_LB_U_MORE_TAG | NPC_F_LB_L_WITH_ITAG_CTAG, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 0, 1, + NPC_S_NA, 0, 1, + NPC_LID_LB, NPC_LT_LB_BTAG, + NPC_F_LB_U_MORE_TAG | NPC_F_LB_L_WITH_ITAG_UNK, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 0, 1, + NPC_S_NA, 0, 1, + NPC_LID_LB, NPC_LT_LB_STAG_QINQ, + NPC_F_LB_U_UNK_ETYPE, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 8, 0, 6, 2, 0, + NPC_S_KPU5_IP, 10, 1, + NPC_LID_LB, NPC_LT_LB_STAG_QINQ, + NPC_F_LB_U_MORE_TAG | NPC_F_LB_L_WITH_CTAG, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 6, 0, 0, 2, 0, + NPC_S_KPU5_IP6, 10, 1, + NPC_LID_LB, NPC_LT_LB_STAG_QINQ, + NPC_F_LB_U_MORE_TAG | NPC_F_LB_L_WITH_CTAG, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 2, 0, + NPC_S_KPU5_ARP, 10, 1, + NPC_LID_LB, NPC_LT_LB_STAG_QINQ, + NPC_F_LB_U_MORE_TAG | NPC_F_LB_L_WITH_CTAG, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 2, 0, + NPC_S_KPU5_RARP, 10, 1, + NPC_LID_LB, NPC_LT_LB_STAG_QINQ, + NPC_F_LB_U_MORE_TAG | NPC_F_LB_L_WITH_CTAG, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 2, 0, + NPC_S_KPU5_PTP, 10, 1, + NPC_LID_LB, NPC_LT_LB_STAG_QINQ, + NPC_F_LB_U_MORE_TAG | NPC_F_LB_L_WITH_CTAG, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 2, 0, + NPC_S_KPU5_FCOE, 10, 1, + NPC_LID_LB, NPC_LT_LB_STAG_QINQ, + NPC_F_LB_U_MORE_TAG | NPC_F_LB_L_WITH_CTAG, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 2, 6, 10, 1, 0, + NPC_S_KPU4_MPLS, 10, 1, + NPC_LID_LB, NPC_LT_LB_STAG_QINQ, + NPC_F_LB_U_MORE_TAG | NPC_F_LB_L_WITH_CTAG, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 2, 6, 10, 1, 0, + NPC_S_KPU4_MPLS, 10, 1, + NPC_LID_LB, NPC_LT_LB_STAG_QINQ, + NPC_F_LB_U_MORE_TAG | NPC_F_LB_L_WITH_CTAG, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 2, 0, 0, 1, 0, + NPC_S_KPU4_NSH, 10, 1, + NPC_LID_LB, NPC_LT_LB_STAG_QINQ, + NPC_F_LB_U_MORE_TAG | NPC_F_LB_L_WITH_CTAG, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 0, 1, + NPC_S_NA, 0, 1, + NPC_LID_LB, NPC_LT_LB_STAG_QINQ, + NPC_F_LB_U_MORE_TAG | NPC_F_LB_L_WITH_CTAG_UNK, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 2, 6, 0, 0, 0, + NPC_S_KPU3_CTAG, 10, 1, + NPC_LID_LB, NPC_LT_LB_STAG_QINQ, + NPC_F_LB_U_MORE_TAG | NPC_F_LB_L_WITH_QINQ_CTAG, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 2, 6, 0, 0, 0, + NPC_S_KPU3_QINQ, 10, 1, + NPC_LID_LB, NPC_LT_LB_STAG_QINQ, + NPC_F_LB_U_MORE_TAG | NPC_F_LB_L_WITH_QINQ_QINQ, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 0, 1, + NPC_S_NA, 0, 1, + NPC_LID_LB, NPC_LT_LB_STAG_QINQ, + NPC_F_LB_U_UNK_ETYPE, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 8, 0, 6, 2, 0, + NPC_S_KPU5_IP, 10, 1, + NPC_LID_LB, NPC_LT_LB_ETAG, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 6, 0, 0, 2, 0, + NPC_S_KPU5_IP6, 10, 1, + NPC_LID_LB, NPC_LT_LB_ETAG, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 2, 0, + NPC_S_KPU5_ARP, 10, 1, + NPC_LID_LB, NPC_LT_LB_ETAG, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 2, 0, + NPC_S_KPU5_RARP, 10, 1, + NPC_LID_LB, NPC_LT_LB_ETAG, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 2, 0, + NPC_S_KPU5_PTP, 10, 1, + NPC_LID_LB, NPC_LT_LB_ETAG, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 2, 0, + NPC_S_KPU5_FCOE, 10, 1, + NPC_LID_LB, NPC_LT_LB_ETAG, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 2, 6, 10, 1, 0, + NPC_S_KPU4_MPLS, 10, 1, + NPC_LID_LB, NPC_LT_LB_ETAG, + 1, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 2, 6, 10, 1, 0, + NPC_S_KPU4_MPLS, 10, 1, + NPC_LID_LB, NPC_LT_LB_ETAG, + 2, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 2, 6, 10, 1, 0, + NPC_S_KPU4_NSH, 10, 1, + NPC_LID_LB, NPC_LT_LB_ETAG, + 2, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 2, 0, 0, 0, 0, + NPC_S_KPU3_CTAG, 10, 1, + NPC_LID_LB, NPC_LT_LB_ETAG, + NPC_F_LB_U_MORE_TAG | NPC_F_LB_L_WITH_CTAG, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 2, 6, 0, 0, 0, + NPC_S_KPU3_STAG, 10, 1, + NPC_LID_LB, NPC_LT_LB_ETAG, + NPC_F_LB_U_MORE_TAG | NPC_F_LB_L_WITH_STAG, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 2, 6, 0, 0, 0, + NPC_S_KPU3_QINQ, 10, 1, + NPC_LID_LB, NPC_LT_LB_ETAG, + NPC_F_LB_U_MORE_TAG | NPC_F_LB_L_WITH_QINQ, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 8, 0, 6, 2, 0, + NPC_S_KPU5_IP, 28, 1, + NPC_LID_LB, NPC_LT_LB_ETAG, + NPC_F_LB_U_MORE_TAG | NPC_F_LB_L_WITH_ITAG, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 6, 0, 0, 2, 0, + NPC_S_KPU5_IP6, 28, 1, + NPC_LID_LB, NPC_LT_LB_ETAG, + NPC_F_LB_U_MORE_TAG | NPC_F_LB_L_WITH_ITAG, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 2, 0, + NPC_S_KPU5_ARP, 28, 1, + NPC_LID_LB, NPC_LT_LB_ETAG, + NPC_F_LB_U_MORE_TAG | NPC_F_LB_L_WITH_ITAG, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 2, 0, 0, 0, 0, + NPC_S_KPU3_STAG, 28, 1, + NPC_LID_LB, NPC_LT_LB_ETAG, + NPC_F_LB_U_MORE_TAG | NPC_F_LB_L_WITH_ITAG_STAG, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 2, 0, 0, 0, 0, + NPC_S_KPU3_CTAG, 28, 1, + NPC_LID_LB, NPC_LT_LB_ETAG, + NPC_F_LB_U_MORE_TAG | NPC_F_LB_L_WITH_ITAG_CTAG, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 0, 1, + NPC_S_NA, 0, 1, + NPC_LID_LB, NPC_LT_LB_ETAG, + NPC_F_LB_U_MORE_TAG | NPC_F_LB_L_WITH_ITAG_UNK, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 0, 1, + NPC_S_NA, 0, 1, + NPC_LID_LB, NPC_LT_LB_ETAG, + NPC_F_LB_U_UNK_ETYPE, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 8, 0, 6, 2, 0, + NPC_S_KPU5_IP, 10, 1, + NPC_LID_LB, NPC_LT_LB_STAG_QINQ, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 6, 0, 0, 2, 0, + NPC_S_KPU5_IP6, 10, 1, + NPC_LID_LB, NPC_LT_LB_STAG_QINQ, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 2, 0, + NPC_S_KPU5_ARP, 10, 1, + NPC_LID_LB, NPC_LT_LB_STAG_QINQ, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 2, 0, + NPC_S_KPU5_RARP, 10, 1, + NPC_LID_LB, NPC_LT_LB_STAG_QINQ, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 2, 0, + NPC_S_KPU5_PTP, 10, 1, + NPC_LID_LB, NPC_LT_LB_STAG_QINQ, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 2, 0, + NPC_S_KPU5_FCOE, 10, 1, + NPC_LID_LB, NPC_LT_LB_STAG_QINQ, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 2, 6, 10, 1, 0, + NPC_S_KPU4_MPLS, 10, 1, + NPC_LID_LB, NPC_LT_LB_STAG_QINQ, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 2, 6, 10, 1, 0, + NPC_S_KPU4_MPLS, 10, 1, + NPC_LID_LB, NPC_LT_LB_STAG_QINQ, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 2, 0, 0, 1, 0, + NPC_S_KPU4_NSH, 10, 1, + NPC_LID_LB, NPC_LT_LB_STAG_QINQ, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 2, 6, 0, 0, 0, + NPC_S_KPU3_QINQ, 10, 1, + NPC_LID_LB, NPC_LT_LB_STAG_QINQ, + NPC_F_LB_U_MORE_TAG | NPC_F_LB_L_WITH_QINQ_QINQ, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 0, 1, + NPC_S_NA, 0, 1, + NPC_LID_LB, NPC_LT_LB_STAG_QINQ, + NPC_F_LB_U_UNK_ETYPE, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 8, 0, 6, 2, 0, + NPC_S_KPU5_IP, 18, 1, + NPC_LID_LB, NPC_LT_LB_EDSA, + NPC_F_LB_L_EDSA, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 6, 0, 0, 2, 0, + NPC_S_KPU5_IP6, 18, 1, + NPC_LID_LB, NPC_LT_LB_EDSA, + NPC_F_LB_L_EDSA, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 2, 0, + NPC_S_KPU5_ARP, 18, 1, + NPC_LID_LB, NPC_LT_LB_EDSA, + NPC_F_LB_L_EDSA, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 8, 0, 6, 2, 0, + NPC_S_KPU5_RARP, 18, 1, + NPC_LID_LB, NPC_LT_LB_EDSA, + NPC_F_LB_L_EDSA, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 6, 0, 0, 2, 0, + NPC_S_KPU5_PTP, 18, 1, + NPC_LID_LB, NPC_LT_LB_EDSA, + NPC_F_LB_L_EDSA, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 2, 0, + NPC_S_KPU5_FCOE, 18, 1, + NPC_LID_LB, NPC_LT_LB_EDSA, + NPC_F_LB_L_EDSA, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 4, 8, 0, 0, 0, + NPC_S_KPU3_CTAG, 16, 1, + NPC_LID_LB, NPC_LT_LB_EDSA_VLAN, + NPC_F_LB_L_EDSA_VLAN, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 0, 1, + NPC_S_NA, 0, 1, + NPC_LID_LB, NPC_LT_LB_EDSA, + NPC_F_LB_U_UNK_ETYPE | NPC_F_LB_L_EDSA, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 8, 0, 6, 2, 0, + NPC_S_KPU5_IP, 10, 1, + NPC_LID_LB, NPC_LT_LB_EXDSA, + NPC_F_LB_L_EXDSA, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 6, 0, 0, 2, 0, + NPC_S_KPU5_IP6, 10, 1, + NPC_LID_LB, NPC_LT_LB_EXDSA, + NPC_F_LB_L_EXDSA, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 2, 0, + NPC_S_KPU5_ARP, 10, 1, + NPC_LID_LB, NPC_LT_LB_EXDSA, + NPC_F_LB_L_EXDSA, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 8, 0, 6, 2, 0, + NPC_S_KPU5_RARP, 10, 1, + NPC_LID_LB, NPC_LT_LB_EXDSA, + NPC_F_LB_L_EXDSA, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 6, 0, 0, 2, 0, + NPC_S_KPU5_PTP, 10, 1, + NPC_LID_LB, NPC_LT_LB_EXDSA, + NPC_F_LB_L_EXDSA, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 2, 0, + NPC_S_KPU5_FCOE, 10, 1, + NPC_LID_LB, NPC_LT_LB_EXDSA, + NPC_F_LB_L_EXDSA, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 4, 8, 0, 0, 0, + NPC_S_KPU3_CTAG, 8, 1, + NPC_LID_LB, NPC_LT_LB_EXDSA_VLAN, + NPC_F_LB_L_EXDSA_VLAN, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 0, 1, + NPC_S_NA, 0, 1, + NPC_LID_LB, NPC_LT_LB_EXDSA, + NPC_F_LB_U_UNK_ETYPE | NPC_F_LB_L_EXDSA, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 8, 0, 6, 2, 0, + NPC_S_KPU5_CPT_IP, 6, 1, + NPC_LID_LB, NPC_LT_LB_CTAG, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 6, 0, 0, 2, 0, + NPC_S_KPU5_CPT_IP6, 6, 1, + NPC_LID_LB, NPC_LT_LB_CTAG, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 8, 0, 6, 2, 0, + NPC_S_KPU5_CPT_IP, 10, 1, + NPC_LID_LB, NPC_LT_LB_STAG_QINQ, + NPC_F_LB_U_MORE_TAG | NPC_F_LB_L_WITH_CTAG, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 6, 0, 0, 2, 0, + NPC_S_KPU5_CPT_IP6, 10, 1, + NPC_LID_LB, NPC_LT_LB_STAG_QINQ, + NPC_F_LB_U_MORE_TAG | NPC_F_LB_L_WITH_CTAG, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_LB, NPC_EC_L2_K3, + 0, 0, 0, 0, 1, + NPC_S_NA, 0, 0, + NPC_LID_LB, NPC_LT_NA, + 0, + 0, 0, 0, 0, + }, +}; + +static struct npc_kpu_profile_action kpu3_action_entries[] = { + NPC_KPU_NOP_ACTION, + NPC_KPU_NOP_ACTION, + NPC_KPU_NOP_ACTION, + NPC_KPU_NOP_ACTION, + NPC_KPU_NOP_ACTION, + NPC_KPU_NOP_ACTION, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 8, 0, 6, 1, 0, + NPC_S_KPU5_IP, 6, 0, + NPC_LID_LB, NPC_LT_NA, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 6, 0, 0, 1, 0, + NPC_S_KPU5_IP6, 6, 0, + NPC_LID_LB, NPC_LT_NA, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 1, 0, + NPC_S_KPU5_ARP, 6, 0, + NPC_LID_LB, NPC_LT_NA, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 1, 0, + NPC_S_KPU5_RARP, 6, 0, + NPC_LID_LB, NPC_LT_NA, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 1, 0, + NPC_S_KPU5_PTP, 6, 0, + NPC_LID_LB, NPC_LT_NA, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 1, 0, + NPC_S_KPU5_FCOE, 6, 0, + NPC_LID_LB, NPC_LT_NA, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 2, 6, 10, 0, 0, + NPC_S_KPU4_MPLS, 6, 0, + NPC_LID_LB, NPC_LT_NA, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 2, 6, 10, 0, 0, + NPC_S_KPU4_MPLS, 6, 0, + NPC_LID_LB, NPC_LT_NA, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 2, 0, 0, 0, 0, + NPC_S_KPU4_NSH, 6, 0, + NPC_LID_LB, NPC_LT_NA, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_LB, NPC_EC_L2_K3_ETYPE_UNK, + 0, 0, 0, 0, 1, + NPC_S_NA, 0, 0, + NPC_LID_LB, NPC_LT_NA, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 8, 0, 6, 1, 0, + NPC_S_KPU5_IP, 8, 0, + NPC_LID_LB, NPC_LT_NA, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 6, 0, 0, 1, 0, + NPC_S_KPU5_IP6, 8, 0, + NPC_LID_LB, NPC_LT_NA, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 1, 0, + NPC_S_KPU5_ARP, 8, 0, + NPC_LID_LB, NPC_LT_NA, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 1, 0, + NPC_S_KPU5_RARP, 8, 0, + NPC_LID_LB, NPC_LT_NA, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 1, 0, + NPC_S_KPU5_PTP, 8, 0, + NPC_LID_LB, NPC_LT_NA, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 1, 0, + NPC_S_KPU5_FCOE, 8, 0, + NPC_LID_LB, NPC_LT_NA, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 2, 6, 10, 0, 0, + NPC_S_KPU4_MPLS, 8, 0, + NPC_LID_LB, NPC_LT_NA, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 2, 6, 10, 0, 0, + NPC_S_KPU4_MPLS, 8, 0, + NPC_LID_LB, NPC_LT_NA, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 2, 0, 0, 0, 0, + NPC_S_KPU4_NSH, 8, 0, + NPC_LID_LB, NPC_LT_NA, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 8, 0, 6, 1, 0, + NPC_S_KPU5_IP, 4, 0, + NPC_LID_LB, NPC_LT_NA, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 6, 0, 0, 1, 0, + NPC_S_KPU5_IP6, 4, 0, + NPC_LID_LB, NPC_LT_NA, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 1, 0, + NPC_S_KPU5_ARP, 4, 0, + NPC_LID_LB, NPC_LT_NA, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 1, 0, + NPC_S_KPU5_RARP, 4, 0, + NPC_LID_LB, NPC_LT_NA, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 2, 6, 10, 0, 0, + NPC_S_KPU4_MPLS, 4, 0, + NPC_LID_LB, NPC_LT_NA, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 2, 6, 10, 0, 0, + NPC_S_KPU4_MPLS, 4, 0, + NPC_LID_LB, NPC_LT_NA, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 2, 0, 0, 0, 0, + NPC_S_KPU4_NSH, 4, 0, + NPC_LID_LB, NPC_LT_NA, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_LB, NPC_EC_L2_K3_ETYPE_UNK, + 0, 0, 0, 0, 1, + NPC_S_NA, 0, 0, + NPC_LID_LB, NPC_LT_NA, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 8, 0, 6, 1, 0, + NPC_S_KPU5_IP, 8, 0, + NPC_LID_LB, NPC_LT_NA, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 6, 0, 0, 1, 0, + NPC_S_KPU5_IP6, 8, 0, + NPC_LID_LB, NPC_LT_NA, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 1, 0, + NPC_S_KPU5_ARP, 8, 0, + NPC_LID_LB, NPC_LT_NA, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 1, 0, + NPC_S_KPU5_RARP, 8, 0, + NPC_LID_LB, NPC_LT_NA, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 1, 0, + NPC_S_KPU5_PTP, 8, 0, + NPC_LID_LB, NPC_LT_NA, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 1, 0, + NPC_S_KPU5_FCOE, 8, 0, + NPC_LID_LB, NPC_LT_NA, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 2, 6, 10, 0, 0, + NPC_S_KPU4_MPLS, 8, 0, + NPC_LID_LB, NPC_LT_NA, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 2, 6, 10, 0, 0, + NPC_S_KPU4_MPLS, 8, 0, + NPC_LID_LB, NPC_LT_NA, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 2, 0, 0, 0, 0, + NPC_S_KPU4_NSH, 8, 0, + NPC_LID_LB, NPC_LT_NA, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 8, 0, 6, 1, 0, + NPC_S_KPU5_IP, 4, 0, + NPC_LID_LB, NPC_LT_NA, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 6, 0, 0, 1, 0, + NPC_S_KPU5_IP6, 4, 0, + NPC_LID_LB, NPC_LT_NA, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 1, 0, + NPC_S_KPU5_ARP, 4, 0, + NPC_LID_LB, NPC_LT_NA, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 1, 0, + NPC_S_KPU5_RARP, 4, 0, + NPC_LID_LB, NPC_LT_NA, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 1, 0, + NPC_S_KPU5_PTP, 4, 0, + NPC_LID_LB, NPC_LT_NA, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 1, 0, + NPC_S_KPU5_FCOE, 4, 0, + NPC_LID_LB, NPC_LT_NA, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 2, 6, 10, 0, 0, + NPC_S_KPU4_MPLS, 4, 0, + NPC_LID_LB, NPC_LT_NA, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 2, 6, 10, 0, 0, + NPC_S_KPU4_MPLS, 4, 0, + NPC_LID_LB, NPC_LT_NA, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 2, 0, 0, 0, 0, + NPC_S_KPU4_NSH, 4, 0, + NPC_LID_LB, NPC_LT_NA, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_LB, NPC_EC_L2_K3_ETYPE_UNK, + 0, 0, 0, 0, 1, + NPC_S_NA, 0, 0, + NPC_LID_LB, NPC_LT_NA, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 8, 0, 6, 1, 0, + NPC_S_KPU5_IP, 4, 1, + NPC_LID_LB, NPC_LT_LB_CTAG, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 6, 0, 0, 1, 0, + NPC_S_KPU5_IP6, 4, 1, + NPC_LID_LB, NPC_LT_LB_CTAG, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 1, 0, + NPC_S_KPU5_ARP, 4, 1, + NPC_LID_LB, NPC_LT_LB_CTAG, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 1, 0, + NPC_S_KPU5_RARP, 4, 1, + NPC_LID_LB, NPC_LT_LB_CTAG, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 1, 0, + NPC_S_KPU5_PTP, 4, 1, + NPC_LID_LB, NPC_LT_LB_CTAG, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 1, 0, + NPC_S_KPU5_FCOE, 4, 1, + NPC_LID_LB, NPC_LT_LB_CTAG, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 2, 6, 10, 0, 0, + NPC_S_KPU4_MPLS, 4, 1, + NPC_LID_LB, NPC_LT_LB_CTAG, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 2, 6, 10, 0, 0, + NPC_S_KPU4_MPLS, 4, 1, + NPC_LID_LB, NPC_LT_LB_CTAG, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 2, 0, 0, 0, 0, + NPC_S_KPU4_NSH, 4, 1, + NPC_LID_LB, NPC_LT_LB_CTAG, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_LB, NPC_EC_L2_K3_ETYPE_UNK, + 0, 0, 0, 0, 1, + NPC_S_NA, 0, 1, + NPC_LID_LB, NPC_LT_LB_CTAG, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 8, 0, 6, 1, 0, + NPC_S_KPU5_IP, 8, 1, + NPC_LID_LB, NPC_LT_LB_STAG_QINQ, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 6, 0, 0, 1, 0, + NPC_S_KPU5_IP6, 8, 1, + NPC_LID_LB, NPC_LT_LB_STAG_QINQ, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 1, 0, + NPC_S_KPU5_ARP, 8, 1, + NPC_LID_LB, NPC_LT_LB_STAG_QINQ, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 1, 0, + NPC_S_KPU5_RARP, 8, 1, + NPC_LID_LB, NPC_LT_LB_STAG_QINQ, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 1, 0, + NPC_S_KPU5_PTP, 8, 1, + NPC_LID_LB, NPC_LT_LB_STAG_QINQ, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 1, 0, + NPC_S_KPU5_FCOE, 8, 1, + NPC_LID_LB, NPC_LT_LB_STAG_QINQ, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 2, 6, 10, 0, 0, + NPC_S_KPU4_MPLS, 8, 1, + NPC_LID_LB, NPC_LT_LB_STAG_QINQ, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 2, 6, 10, 0, 0, + NPC_S_KPU4_MPLS, 8, 1, + NPC_LID_LB, NPC_LT_LB_STAG_QINQ, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 2, 0, 0, 0, 0, + NPC_S_KPU4_NSH, 8, 1, + NPC_LID_LB, NPC_LT_LB_STAG_QINQ, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 8, 0, 6, 1, 0, + NPC_S_KPU5_IP, 4, 1, + NPC_LID_LB, NPC_LT_LB_STAG_QINQ, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 6, 0, 0, 1, 0, + NPC_S_KPU5_IP6, 4, 1, + NPC_LID_LB, NPC_LT_LB_STAG_QINQ, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 1, 0, + NPC_S_KPU5_ARP, 4, 1, + NPC_LID_LB, NPC_LT_LB_STAG_QINQ, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 1, 0, + NPC_S_KPU5_RARP, 4, 1, + NPC_LID_LB, NPC_LT_LB_STAG_QINQ, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 2, 6, 10, 0, 0, + NPC_S_KPU4_MPLS, 4, 1, + NPC_LID_LB, NPC_LT_LB_STAG_QINQ, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 2, 6, 10, 0, 0, + NPC_S_KPU4_MPLS, 4, 1, + NPC_LID_LB, NPC_LT_LB_STAG_QINQ, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 2, 0, 0, 0, 0, + NPC_S_KPU4_NSH, 4, 1, + NPC_LID_LB, NPC_LT_LB_STAG_QINQ, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_LB, NPC_EC_L2_K3_ETYPE_UNK, + 0, 0, 0, 0, 1, + NPC_S_NA, 0, 1, + NPC_LID_LB, NPC_LT_LB_STAG_QINQ, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 8, 0, 6, 1, 0, + NPC_S_KPU5_IP, 8, 1, + NPC_LID_LB, NPC_LT_LB_STAG_QINQ, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 6, 0, 0, 1, 0, + NPC_S_KPU5_IP6, 8, 1, + NPC_LID_LB, NPC_LT_LB_STAG_QINQ, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 1, 0, + NPC_S_KPU5_ARP, 8, 1, + NPC_LID_LB, NPC_LT_LB_STAG_QINQ, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 1, 0, + NPC_S_KPU5_RARP, 8, 1, + NPC_LID_LB, NPC_LT_LB_STAG_QINQ, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 1, 0, + NPC_S_KPU5_PTP, 8, 1, + NPC_LID_LB, NPC_LT_LB_STAG_QINQ, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 1, 0, + NPC_S_KPU5_FCOE, 8, 1, + NPC_LID_LB, NPC_LT_LB_STAG_QINQ, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 2, 6, 10, 0, 0, + NPC_S_KPU4_MPLS, 8, 1, + NPC_LID_LB, NPC_LT_LB_STAG_QINQ, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 2, 6, 10, 0, 0, + NPC_S_KPU4_MPLS, 8, 1, + NPC_LID_LB, NPC_LT_LB_STAG_QINQ, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 2, 0, 0, 0, 0, + NPC_S_KPU4_NSH, 8, 1, + NPC_LID_LB, NPC_LT_LB_STAG_QINQ, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 8, 0, 6, 1, 0, + NPC_S_KPU5_IP, 4, 1, + NPC_LID_LB, NPC_LT_LB_STAG_QINQ, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 6, 0, 0, 1, 0, + NPC_S_KPU5_IP6, 4, 1, + NPC_LID_LB, NPC_LT_LB_STAG_QINQ, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 1, 0, + NPC_S_KPU5_ARP, 4, 1, + NPC_LID_LB, NPC_LT_LB_STAG_QINQ, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 1, 0, + NPC_S_KPU5_RARP, 4, 1, + NPC_LID_LB, NPC_LT_LB_STAG_QINQ, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 1, 0, + NPC_S_KPU5_PTP, 4, 1, + NPC_LID_LB, NPC_LT_LB_STAG_QINQ, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 1, 0, + NPC_S_KPU5_FCOE, 4, 1, + NPC_LID_LB, NPC_LT_LB_STAG_QINQ, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 2, 6, 10, 0, 0, + NPC_S_KPU4_MPLS, 4, 1, + NPC_LID_LB, NPC_LT_LB_STAG_QINQ, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 2, 6, 10, 0, 0, + NPC_S_KPU4_MPLS, 4, 1, + NPC_LID_LB, NPC_LT_LB_STAG_QINQ, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 2, 0, 0, 0, 0, + NPC_S_KPU4_NSH, 4, 1, + NPC_LID_LB, NPC_LT_LB_STAG_QINQ, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_LB, NPC_EC_L2_K3_ETYPE_UNK, + 0, 0, 0, 0, 1, + NPC_S_NA, 0, 1, + NPC_LID_LB, NPC_LT_LB_STAG_QINQ, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 8, 0, 6, 1, 0, + NPC_S_KPU5_IP, 10, 1, + NPC_LID_LB, NPC_LT_LB_DSA, + NPC_F_LB_L_DSA, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 6, 0, 0, 1, 0, + NPC_S_KPU5_IP6, 10, 1, + NPC_LID_LB, NPC_LT_LB_DSA, + NPC_F_LB_L_DSA, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 1, 0, + NPC_S_KPU5_ARP, 10, 1, + NPC_LID_LB, NPC_LT_LB_DSA, + NPC_F_LB_L_DSA, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 1, 0, + NPC_S_KPU5_RARP, 10, 1, + NPC_LID_LB, NPC_LT_LB_DSA, + NPC_F_LB_L_DSA, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 1, 0, + NPC_S_KPU5_PTP, 10, 1, + NPC_LID_LB, NPC_LT_LB_DSA, + NPC_F_LB_L_DSA, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 1, 0, + NPC_S_KPU5_FCOE, 10, 1, + NPC_LID_LB, NPC_LT_LB_DSA, + NPC_F_LB_L_DSA, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 8, 0, 6, 1, 0, + NPC_S_KPU5_IP, 14, 1, + NPC_LID_LB, NPC_LT_LB_DSA_VLAN, + NPC_F_LB_L_DSA_VLAN, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 6, 0, 0, 1, 0, + NPC_S_KPU5_IP6, 14, 1, + NPC_LID_LB, NPC_LT_LB_DSA_VLAN, + NPC_F_LB_L_DSA_VLAN, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 1, 0, + NPC_S_KPU5_ARP, 14, 1, + NPC_LID_LB, NPC_LT_LB_DSA_VLAN, + NPC_F_LB_L_DSA_VLAN, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 1, 0, + NPC_S_KPU5_RARP, 14, 1, + NPC_LID_LB, NPC_LT_LB_DSA_VLAN, + NPC_F_LB_L_DSA_VLAN, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 1, 0, + NPC_S_KPU5_PTP, 14, 1, + NPC_LID_LB, NPC_LT_LB_DSA_VLAN, + NPC_F_LB_L_DSA_VLAN, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 1, 0, + NPC_S_KPU5_FCOE, 14, 1, + NPC_LID_LB, NPC_LT_LB_DSA_VLAN, + NPC_F_LB_L_DSA_VLAN, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 0, 1, + NPC_S_NA, 0, 1, + NPC_LID_LB, NPC_LT_LB_DSA_VLAN, + NPC_F_LB_U_UNK_ETYPE | NPC_F_LB_L_DSA, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 0, 1, + NPC_S_NA, 0, 1, + NPC_LID_LB, NPC_LT_LB_DSA, + NPC_F_LB_U_UNK_ETYPE | NPC_F_LB_L_DSA_VLAN, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 0, 0, + NPC_S_KPU4_VLAN_EXDSA, 12, 1, + NPC_LID_LB, NPC_LT_LB_VLAN_EXDSA, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_LB, NPC_EC_L2_K3, + 0, 0, 0, 0, 1, + NPC_S_NA, 0, 0, + NPC_LID_LB, NPC_LT_NA, + 0, + 0, 0, 0, 0, + }, +}; + +static struct npc_kpu_profile_action kpu4_action_entries[] = { + NPC_KPU_NOP_ACTION, + NPC_KPU_NOP_ACTION, + NPC_KPU_NOP_ACTION, + NPC_KPU_NOP_ACTION, + NPC_KPU_NOP_ACTION, + NPC_KPU_NOP_ACTION, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 0, 0, + NPC_S_KPU5_MPLS_PL, 4, 1, + NPC_LID_LC, NPC_LT_LC_MPLS, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 0, 0, + NPC_S_KPU5_MPLS_PL, 8, 1, + NPC_LID_LC, NPC_LT_LC_MPLS, + NPC_F_LC_L_MPLS_2_LABELS, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 0, 0, + NPC_S_KPU5_MPLS_PL, 12, 1, + NPC_LID_LC, NPC_LT_LC_MPLS, + NPC_F_LC_L_MPLS_3_LABELS, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 2, 4, 0, 0, 0, + NPC_S_KPU5_MPLS, 12, 1, + NPC_LID_LC, NPC_LT_LC_MPLS, + NPC_F_LC_L_MPLS_4_LABELS, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 8, 0, 6, 7, 0, + NPC_S_KPU12_TU_IP, 0, 1, + NPC_LID_LC, NPC_LT_LC_NSH, + 0, + 1, 0x3f, 0, 2, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 6, 0, 0, 7, 0, + NPC_S_KPU12_TU_IP6, 0, 1, + NPC_LID_LC, NPC_LT_LC_NSH, + 0, + 1, 0x3f, 0, 2, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 12, 16, 20, 6, 0, + NPC_S_KPU11_TU_ETHER, 0, 1, + NPC_LID_LC, NPC_LT_LC_NSH, + 0, + 1, 0x3f, 0, 2, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 4, 0, + NPC_S_KPU9_TU_MPLS_IN_NSH, 0, 1, + NPC_LID_LC, NPC_LT_LC_NSH, + 0, + 1, 0x3f, 0, 2, + }, + { + NPC_ERRLEV_LC, NPC_EC_NSH_UNK, + 0, 0, 0, 0, 1, + NPC_S_NA, 0, 1, + NPC_LID_LC, NPC_LT_LC_NSH, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 8, 0, 6, 0, 0, + NPC_S_KPU5_IP, 6, 1, + NPC_LID_LB, NPC_LT_LB_FDSA, + NPC_F_LB_L_FDSA, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 6, 0, 0, 0, 0, + NPC_S_KPU5_IP6, 6, 1, + NPC_LID_LB, NPC_LT_LB_FDSA, + NPC_F_LB_L_FDSA, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 0, 0, + NPC_S_KPU5_ARP, 6, 1, + NPC_LID_LB, NPC_LT_LB_FDSA, + NPC_F_LB_L_FDSA, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 8, 0, 6, 0, 0, + NPC_S_KPU5_RARP, 6, 1, + NPC_LID_LB, NPC_LT_LB_FDSA, + NPC_F_LB_L_FDSA, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 6, 0, 0, 0, 0, + NPC_S_KPU5_PTP, 6, 1, + NPC_LID_LB, NPC_LT_LB_FDSA, + NPC_F_LB_L_FDSA, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 0, 0, + NPC_S_KPU5_FCOE, 6, 1, + NPC_LID_LB, NPC_LT_LB_FDSA, + NPC_F_LB_L_FDSA, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 8, 0, 6, 0, 0, + NPC_S_KPU5_IP, 10, 1, + NPC_LID_LB, NPC_LT_LB_FDSA, + NPC_F_LB_L_FDSA, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 6, 0, 0, 0, 0, + NPC_S_KPU5_IP6, 10, 1, + NPC_LID_LB, NPC_LT_LB_FDSA, + NPC_F_LB_L_FDSA, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 0, 0, + NPC_S_KPU5_ARP, 10, 1, + NPC_LID_LB, NPC_LT_LB_FDSA, + NPC_F_LB_L_FDSA, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 8, 0, 6, 0, 0, + NPC_S_KPU5_RARP, 10, 1, + NPC_LID_LB, NPC_LT_LB_FDSA, + NPC_F_LB_L_FDSA, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 6, 0, 0, 0, 0, + NPC_S_KPU5_PTP, 10, 1, + NPC_LID_LB, NPC_LT_LB_FDSA, + NPC_F_LB_L_FDSA, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 0, 0, + NPC_S_KPU5_FCOE, 10, 1, + NPC_LID_LB, NPC_LT_LB_FDSA, + NPC_F_LB_L_FDSA, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 8, 0, 6, 0, 0, + NPC_S_KPU5_IP, 14, 1, + NPC_LID_LB, NPC_LT_LB_PPPOE, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 6, 0, 0, 0, 0, + NPC_S_KPU5_IP6, 14, 1, + NPC_LID_LB, NPC_LT_LB_PPPOE, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 0, 1, + NPC_S_NA, 0, 1, + NPC_LID_LB, NPC_LT_LB_FDSA, + NPC_F_LB_U_UNK_ETYPE | NPC_F_LB_L_FDSA, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 8, 0, 6, 0, 0, + NPC_S_KPU5_IP, 2, 0, + NPC_LID_LC, NPC_LT_NA, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 6, 0, 0, 0, 0, + NPC_S_KPU5_IP6, 2, 0, + NPC_LID_LC, NPC_LT_NA, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 0, 0, + NPC_S_KPU5_ARP, 2, 0, + NPC_LID_LC, NPC_LT_NA, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 8, 0, 6, 0, 0, + NPC_S_KPU5_RARP, 2, 0, + NPC_LID_LC, NPC_LT_NA, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 6, 0, 0, 0, 0, + NPC_S_KPU5_PTP, 2, 0, + NPC_LID_LC, NPC_LT_NA, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 0, 0, + NPC_S_KPU5_FCOE, 2, 0, + NPC_LID_LC, NPC_LT_NA, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 0, 1, + NPC_S_NA, 0, 0, + NPC_LID_LC, NPC_LT_NA, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 8, 0, 6, 0, 0, + NPC_S_KPU5_IP, 10, 0, + NPC_LID_LB, NPC_LT_LB_PPPOE, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 6, 0, 0, 0, 0, + NPC_S_KPU5_IP6, 10, 0, + NPC_LID_LB, NPC_LT_LB_PPPOE, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_LB, NPC_EC_L2_K4, + 0, 0, 0, 0, 1, + NPC_S_NA, 0, 0, + NPC_LID_LC, NPC_LT_NA, + 0, + 0, 0, 0, 0, + }, +}; + +static struct npc_kpu_profile_action kpu5_action_entries[] = { + NPC_KPU_NOP_ACTION, + NPC_KPU_NOP_ACTION, + NPC_KPU_NOP_ACTION, + NPC_KPU_NOP_ACTION, + NPC_KPU_NOP_ACTION, + NPC_KPU_NOP_ACTION, + { + NPC_ERRLEV_LC, NPC_EC_IP_TTL_0, + 0, 0, 0, 0, 1, + NPC_S_NA, 0, 1, + NPC_LID_LC, NPC_LT_LC_IP, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_LC, NPC_EC_IP_FRAG_OFFSET_1, + 0, 0, 0, 0, 1, + NPC_S_NA, 0, 1, + NPC_LID_LC, NPC_LT_LC_IP, + NPC_F_LC_U_IP_FRAG, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 2, 12, 0, 2, 0, + NPC_S_KPU8_TCP, 20, 1, + NPC_LID_LC, NPC_LT_LC_IP, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 2, 0, 0, 2, 0, + NPC_S_KPU8_UDP, 20, 1, + NPC_LID_LC, NPC_LT_LC_IP, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 2, 0, + NPC_S_KPU8_SCTP, 20, 1, + NPC_LID_LC, NPC_LT_LC_IP, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 2, 0, + NPC_S_KPU8_ICMP, 20, 1, + NPC_LID_LC, NPC_LT_LC_IP, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 2, 0, + NPC_S_KPU8_IGMP, 20, 1, + NPC_LID_LC, NPC_LT_LC_IP, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 3, 0, + NPC_S_KPU9_ESP, 20, 1, + NPC_LID_LC, NPC_LT_LC_IP, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 2, 0, + NPC_S_KPU8_AH, 20, 1, + NPC_LID_LC, NPC_LT_LC_IP, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 2, 0, 0, 2, 0, + NPC_S_KPU8_GRE, 20, 1, + NPC_LID_LC, NPC_LT_LC_IP, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 8, 0, 6, 6, 0, + NPC_S_KPU12_TU_IP, 20, 1, + NPC_LID_LC, NPC_LT_LC_IP, + NPC_F_LC_L_IP_IN_IP, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 6, 0, 0, 6, 0, + NPC_S_KPU12_TU_IP6, 20, 1, + NPC_LID_LC, NPC_LT_LC_IP, + NPC_F_LC_L_6TO4, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 2, 6, 10, 3, 0, + NPC_S_KPU9_TU_MPLS_IN_IP, 20, 1, + NPC_LID_LC, NPC_LT_LC_IP, + NPC_F_LC_L_MPLS_IN_IP, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 0, 1, + NPC_S_NA, 0, 1, + NPC_LID_LC, NPC_LT_LC_IP, + NPC_F_LC_U_UNK_PROTO, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 0, 1, + NPC_S_NA, 0, 1, + NPC_LID_LC, NPC_LT_LC_IP, + NPC_F_LC_U_IP_FRAG, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 2, 12, 0, 2, 0, + NPC_S_KPU8_TCP, 0, 1, + NPC_LID_LC, NPC_LT_LC_IP_OPT, + 0, + 0, 0xf, 0, 2, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 2, 8, 10, 2, 0, + NPC_S_KPU8_UDP, 0, 1, + NPC_LID_LC, NPC_LT_LC_IP_OPT, + 0, + 0, 0xf, 0, 2, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 2, 0, + NPC_S_KPU8_SCTP, 0, 1, + NPC_LID_LC, NPC_LT_LC_IP_OPT, + 0, + 0, 0xf, 0, 2, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 2, 0, + NPC_S_KPU8_ICMP, 0, 1, + NPC_LID_LC, NPC_LT_LC_IP_OPT, + 0, + 0, 0xf, 0, 2, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 2, 0, + NPC_S_KPU8_IGMP, 0, 1, + NPC_LID_LC, NPC_LT_LC_IP_OPT, + 0, + 0, 0xf, 0, 2, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 3, 0, + NPC_S_KPU9_ESP, 0, 1, + NPC_LID_LC, NPC_LT_LC_IP_OPT, + 0, + 0, 0xf, 0, 2, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 2, 0, + NPC_S_KPU8_AH, 0, 1, + NPC_LID_LC, NPC_LT_LC_IP_OPT, + 0, + 0, 0xf, 0, 2, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 2, 0, 0, 2, 0, + NPC_S_KPU8_GRE, 0, 1, + NPC_LID_LC, NPC_LT_LC_IP_OPT, + 0, + 0, 0xf, 0, 2, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 8, 0, 6, 6, 0, + NPC_S_KPU12_TU_IP, 0, 1, + NPC_LID_LC, NPC_LT_LC_IP_OPT, + NPC_F_LC_L_IP_IN_IP, + 0, 0xf, 0, 2, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 6, 0, 0, 6, 0, + NPC_S_KPU12_TU_IP6, 0, 1, + NPC_LID_LC, NPC_LT_LC_IP_OPT, + NPC_F_LC_L_6TO4, + 0, 0xf, 0, 2, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 2, 6, 10, 3, 0, + NPC_S_KPU9_TU_MPLS_IN_IP, 20, 1, + NPC_LID_LC, NPC_LT_LC_IP_OPT, + NPC_F_LC_L_MPLS_IN_IP, + 0, 0xf, 0, 2, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 0, 1, + NPC_S_NA, 0, 1, + NPC_LID_LC, NPC_LT_LC_IP_OPT, + NPC_F_LC_U_UNK_PROTO, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 0, 1, + NPC_S_NA, 0, 1, + NPC_LID_LC, NPC_LT_LC_IP_OPT, + NPC_F_LC_U_IP_FRAG, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_LC, NPC_EC_IP_VER, + 0, 0, 0, 0, 1, + NPC_S_NA, 0, 1, + NPC_LID_LC, NPC_LT_LC_IP, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 0, 1, + NPC_S_NA, 0, 1, + NPC_LID_LC, NPC_LT_LC_ARP, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 0, 1, + NPC_S_NA, 0, 1, + NPC_LID_LC, NPC_LT_LC_RARP, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 0, 1, + NPC_S_NA, 0, 1, + NPC_LID_LC, NPC_LT_LC_PTP, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 0, 1, + NPC_S_NA, 0, 1, + NPC_LID_LC, NPC_LT_LC_FCOE, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_LC, NPC_EC_IP6_HOP_0, + 0, 0, 0, 0, 1, + NPC_S_NA, 0, 1, + NPC_LID_LC, NPC_LT_LC_IP6, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 2, 12, 0, 2, 0, + NPC_S_KPU8_TCP, 40, 1, + NPC_LID_LC, NPC_LT_LC_IP6, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 2, 0, 0, 2, 0, + NPC_S_KPU8_UDP, 40, 1, + NPC_LID_LC, NPC_LT_LC_IP6, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 2, 0, + NPC_S_KPU8_SCTP, 40, 1, + NPC_LID_LC, NPC_LT_LC_IP6, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 2, 0, + NPC_S_KPU8_ICMP, 40, 1, + NPC_LID_LC, NPC_LT_LC_IP6, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 2, 0, + NPC_S_KPU8_ICMP6, 40, 1, + NPC_LID_LC, NPC_LT_LC_IP6, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 2, 0, + NPC_S_KPU8_GRE, 40, 1, + NPC_LID_LC, NPC_LT_LC_IP6, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 6, 0, 0, 6, 0, + NPC_S_KPU12_TU_IP6, 40, 1, + NPC_LID_LC, NPC_LT_LC_IP6, + NPC_F_LC_L_IP6_TUN_IP6, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 2, 6, 10, 3, 0, + NPC_S_KPU9_TU_MPLS_IN_IP, 40, 1, + NPC_LID_LC, NPC_LT_LC_IP6, + NPC_F_LC_L_IP6_MPLS_IN_IP, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 0, 0, + NPC_S_KPU6_IP6_HOP_DEST, 40, 1, + NPC_LID_LC, NPC_LT_LC_IP6_EXT, + NPC_F_LC_L_EXT_HOP, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 0, 0, + NPC_S_KPU6_IP6_HOP_DEST, 40, 1, + NPC_LID_LC, NPC_LT_LC_IP6_EXT, + NPC_F_LC_L_EXT_DEST, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 0, 0, + NPC_S_KPU6_IP6_ROUT, 40, 1, + NPC_LID_LC, NPC_LT_LC_IP6_EXT, + NPC_F_LC_L_EXT_ROUT, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 2, 0, 0, 0, + NPC_S_KPU6_IP6_FRAG, 40, 1, + NPC_LID_LC, NPC_LT_LC_IP6_EXT, + NPC_F_LC_U_IP6_FRAG, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 3, 0, + NPC_S_KPU9_ESP, 40, 1, + NPC_LID_LC, NPC_LT_LC_IP6_EXT, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 2, 0, + NPC_S_KPU8_AH, 40, 1, + NPC_LID_LC, NPC_LT_LC_IP6_EXT, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 0, 1, + NPC_S_NA, 0, 1, + NPC_LID_LC, NPC_LT_LC_IP6_EXT, + NPC_F_LC_L_EXT_MOBILITY, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 0, 1, + NPC_S_NA, 0, 1, + NPC_LID_LC, NPC_LT_LC_IP6_EXT, + NPC_F_LC_L_EXT_HOSTID, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 0, 1, + NPC_S_NA, 0, 1, + NPC_LID_LC, NPC_LT_LC_IP6_EXT, + NPC_F_LC_L_EXT_SHIM6, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 0, 1, + NPC_S_NA, 0, 1, + NPC_LID_LC, NPC_LT_LC_IP6, + NPC_F_LC_U_UNK_PROTO, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_LC, NPC_EC_IP6_VER, + 0, 0, 0, 0, 1, + NPC_S_NA, 0, 1, + NPC_LID_LC, NPC_LT_LC_IP6, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 8, 0, 6, 6, 0, + NPC_S_KPU12_TU_IP, 4, 0, + NPC_LID_LB, NPC_LT_NA, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 6, 0, 0, 6, 0, + NPC_S_KPU12_TU_IP6, 4, 0, + NPC_LID_LB, NPC_LT_NA, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 12, 16, 20, 5, 0, + NPC_S_KPU11_TU_ETHER, 8, 0, + NPC_LID_LB, NPC_LT_NA, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 12, 16, 20, 5, 0, + NPC_S_KPU11_TU_ETHER, 4, 0, + NPC_LID_LB, NPC_LT_NA, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_LB, NPC_EC_MPLS_2MANY, + 0, 0, 0, 0, 1, + NPC_S_NA, 0, 0, + NPC_LID_LB, NPC_LT_NA, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 8, 0, 6, 6, 0, + NPC_S_KPU12_TU_IP, 0, 0, + NPC_LID_LB, NPC_LT_NA, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 6, 0, 0, 6, 0, + NPC_S_KPU12_TU_IP6, 0, 0, + NPC_LID_LB, NPC_LT_NA, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 12, 16, 20, 5, 0, + NPC_S_KPU11_TU_ETHER, 4, 0, + NPC_LID_LB, NPC_LT_NA, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 12, 16, 20, 5, 0, + NPC_S_KPU11_TU_ETHER, 0, 0, + NPC_LID_LB, NPC_LT_NA, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_LC, NPC_EC_IP_TTL_0, + 0, 0, 0, 0, 1, + NPC_S_NA, 0, 1, + NPC_LID_LC, NPC_LT_LC_IP, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_LC, NPC_EC_IP_FRAG_OFFSET_1, + 0, 0, 0, 0, 1, + NPC_S_NA, 0, 1, + NPC_LID_LC, NPC_LT_LC_IP, + NPC_F_LC_U_IP_FRAG, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 2, 12, 0, 2, 0, + NPC_S_KPU8_TCP, 20, 1, + NPC_LID_LC, NPC_LT_LC_IP, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 2, 0, 0, 2, 0, + NPC_S_KPU8_UDP, 20, 1, + NPC_LID_LC, NPC_LT_LC_IP, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 2, 0, + NPC_S_KPU8_SCTP, 20, 1, + NPC_LID_LC, NPC_LT_LC_IP, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 2, 0, + NPC_S_KPU8_ICMP, 20, 1, + NPC_LID_LC, NPC_LT_LC_IP, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 2, 0, + NPC_S_KPU8_IGMP, 20, 1, + NPC_LID_LC, NPC_LT_LC_IP, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 3, 0, + NPC_S_KPU9_ESP, 20, 1, + NPC_LID_LC, NPC_LT_LC_IP, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 2, 0, + NPC_S_KPU8_AH, 20, 1, + NPC_LID_LC, NPC_LT_LC_IP, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 2, 0, 0, 2, 0, + NPC_S_KPU8_GRE, 20, 1, + NPC_LID_LC, NPC_LT_LC_IP, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 8, 0, 6, 6, 0, + NPC_S_KPU12_TU_IP, 20, 1, + NPC_LID_LC, NPC_LT_LC_IP, + NPC_F_LC_L_IP_IN_IP, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 6, 0, 0, 6, 0, + NPC_S_KPU12_TU_IP6, 20, 1, + NPC_LID_LC, NPC_LT_LC_IP, + NPC_F_LC_L_6TO4, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 2, 6, 10, 3, 0, + NPC_S_KPU9_TU_MPLS_IN_IP, 20, 1, + NPC_LID_LC, NPC_LT_LC_IP, + NPC_F_LC_L_MPLS_IN_IP, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 0, 1, + NPC_S_NA, 0, 1, + NPC_LID_LC, NPC_LT_LC_IP, + NPC_F_LC_U_UNK_PROTO, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 2, 12, 0, 2, 0, + NPC_S_KPU8_TCP, 0, 1, + NPC_LID_LC, NPC_LT_LC_IP_OPT, + 0, + 0, 0xf, 0, 2, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 2, 8, 10, 2, 0, + NPC_S_KPU8_UDP, 0, 1, + NPC_LID_LC, NPC_LT_LC_IP_OPT, + 0, + 0, 0xf, 0, 2, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 2, 0, + NPC_S_KPU8_SCTP, 0, 1, + NPC_LID_LC, NPC_LT_LC_IP_OPT, + 0, + 0, 0xf, 0, 2, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 2, 0, + NPC_S_KPU8_ICMP, 0, 1, + NPC_LID_LC, NPC_LT_LC_IP_OPT, + 0, + 0, 0xf, 0, 2, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 2, 0, + NPC_S_KPU8_IGMP, 0, 1, + NPC_LID_LC, NPC_LT_LC_IP_OPT, + 0, + 0, 0xf, 0, 2, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 3, 0, + NPC_S_KPU9_ESP, 0, 1, + NPC_LID_LC, NPC_LT_LC_IP_OPT, + 0, + 0, 0xf, 0, 2, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 2, 0, + NPC_S_KPU8_AH, 0, 1, + NPC_LID_LC, NPC_LT_LC_IP_OPT, + 0, + 0, 0xf, 0, 2, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 2, 0, 0, 2, 0, + NPC_S_KPU8_GRE, 0, 1, + NPC_LID_LC, NPC_LT_LC_IP_OPT, + 0, + 0, 0xf, 0, 2, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 8, 0, 6, 6, 0, + NPC_S_KPU12_TU_IP, 0, 1, + NPC_LID_LC, NPC_LT_LC_IP_OPT, + NPC_F_LC_L_IP_IN_IP, + 0, 0xf, 0, 2, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 6, 0, 0, 6, 0, + NPC_S_KPU12_TU_IP6, 0, 1, + NPC_LID_LC, NPC_LT_LC_IP_OPT, + NPC_F_LC_L_6TO4, + 0, 0xf, 0, 2, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 2, 6, 10, 3, 0, + NPC_S_KPU9_TU_MPLS_IN_IP, 20, 1, + NPC_LID_LC, NPC_LT_LC_IP_OPT, + NPC_F_LC_L_MPLS_IN_IP, + 0, 0xf, 0, 2, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 0, 1, + NPC_S_NA, 0, 1, + NPC_LID_LC, NPC_LT_LC_IP_OPT, + NPC_F_LC_U_UNK_PROTO, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_LC, NPC_EC_IP_VER, + 0, 0, 0, 0, 1, + NPC_S_NA, 0, 1, + NPC_LID_LC, NPC_LT_LC_IP, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_LC, NPC_EC_IP6_HOP_0, + 0, 0, 0, 0, 1, + NPC_S_NA, 0, 1, + NPC_LID_LC, NPC_LT_LC_IP6, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 2, 12, 0, 2, 0, + NPC_S_KPU8_TCP, 40, 1, + NPC_LID_LC, NPC_LT_LC_IP6, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 2, 0, 0, 2, 0, + NPC_S_KPU8_UDP, 40, 1, + NPC_LID_LC, NPC_LT_LC_IP6, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 2, 0, + NPC_S_KPU8_SCTP, 40, 1, + NPC_LID_LC, NPC_LT_LC_IP6, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 2, 0, + NPC_S_KPU8_ICMP, 40, 1, + NPC_LID_LC, NPC_LT_LC_IP6, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 2, 0, + NPC_S_KPU8_ICMP6, 40, 1, + NPC_LID_LC, NPC_LT_LC_IP6, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 2, 0, + NPC_S_KPU8_GRE, 40, 1, + NPC_LID_LC, NPC_LT_LC_IP6, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 6, 0, 0, 6, 0, + NPC_S_KPU12_TU_IP6, 40, 1, + NPC_LID_LC, NPC_LT_LC_IP6, + NPC_F_LC_L_IP6_TUN_IP6, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 2, 6, 10, 3, 0, + NPC_S_KPU9_TU_MPLS_IN_IP, 40, 1, + NPC_LID_LC, NPC_LT_LC_IP6, + NPC_F_LC_L_IP6_MPLS_IN_IP, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 0, 0, + NPC_S_KPU6_IP6_CPT_HOP_DEST, 40, 1, + NPC_LID_LC, NPC_LT_LC_IP6_EXT, + NPC_F_LC_L_EXT_HOP, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 0, 0, + NPC_S_KPU6_IP6_CPT_HOP_DEST, 40, 1, + NPC_LID_LC, NPC_LT_LC_IP6_EXT, + NPC_F_LC_L_EXT_DEST, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 0, 0, + NPC_S_KPU6_IP6_CPT_ROUT, 40, 1, + NPC_LID_LC, NPC_LT_LC_IP6_EXT, + NPC_F_LC_L_EXT_ROUT, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 2, 0, 0, 0, + NPC_S_KPU6_IP6_CPT_FRAG, 40, 1, + NPC_LID_LC, NPC_LT_LC_IP6_EXT, + NPC_F_LC_U_IP6_FRAG, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 3, 0, + NPC_S_KPU9_ESP, 40, 1, + NPC_LID_LC, NPC_LT_LC_IP6_EXT, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 2, 0, + NPC_S_KPU8_AH, 40, 1, + NPC_LID_LC, NPC_LT_LC_IP6_EXT, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 0, 1, + NPC_S_NA, 0, 1, + NPC_LID_LC, NPC_LT_LC_IP6_EXT, + NPC_F_LC_L_EXT_MOBILITY, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 0, 1, + NPC_S_NA, 0, 1, + NPC_LID_LC, NPC_LT_LC_IP6_EXT, + NPC_F_LC_L_EXT_HOSTID, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 0, 1, + NPC_S_NA, 0, 1, + NPC_LID_LC, NPC_LT_LC_IP6_EXT, + NPC_F_LC_L_EXT_SHIM6, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 0, 1, + NPC_S_NA, 0, 1, + NPC_LID_LC, NPC_LT_LC_IP6, + NPC_F_LC_U_UNK_PROTO, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_LC, NPC_EC_IP6_VER, + 0, 0, 0, 0, 1, + NPC_S_NA, 0, 1, + NPC_LID_LC, NPC_LT_LC_IP6, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 0, 1, + NPC_S_NA, 0, 1, + NPC_LID_LC, NPC_LT_LC_NGIO, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_LC, NPC_EC_UNK, + 0, 0, 0, 0, 1, + NPC_S_NA, 0, 0, + NPC_LID_LC, NPC_LT_NA, + 0, + 0, 0, 0, 0, + }, +}; + +static struct npc_kpu_profile_action kpu6_action_entries[] = { + NPC_KPU_NOP_ACTION, + NPC_KPU_NOP_ACTION, + NPC_KPU_NOP_ACTION, + NPC_KPU_NOP_ACTION, + NPC_KPU_NOP_ACTION, + NPC_KPU_NOP_ACTION, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 0, 1, + NPC_S_NA, 0, 0, + NPC_LID_LC, NPC_LT_NA, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 0, 1, + NPC_S_NA, 0, 0, + NPC_LID_LC, NPC_LT_NA, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 0, 1, + NPC_S_NA, 0, 0, + NPC_LID_LC, NPC_LT_NA, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 0, 1, + NPC_S_NA, 0, 0, + NPC_LID_LC, NPC_LT_NA, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 0, 1, + NPC_S_NA, 0, 0, + NPC_LID_LC, NPC_LT_NA, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 0, 1, + NPC_S_NA, 0, 0, + NPC_LID_LC, NPC_LT_NA, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 0, 1, + NPC_S_NA, 0, 0, + NPC_LID_LC, NPC_LT_NA, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 0, 1, + NPC_S_NA, 0, 0, + NPC_LID_LC, NPC_LT_NA, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 0, 1, + NPC_S_NA, 0, 0, + NPC_LID_LC, NPC_LT_NA, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 0, 1, + NPC_S_NA, 0, 0, + NPC_LID_LC, NPC_LT_NA, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 0, 1, + NPC_S_NA, 0, 0, + NPC_LID_LC, NPC_LT_NA, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 0, 1, + NPC_S_NA, 0, 0, + NPC_LID_LC, NPC_LT_NA, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 2, 12, 0, 1, 0, + NPC_S_KPU8_TCP, 8, 0, + NPC_LID_LC, NPC_LT_NA, + 0, + 1, 0xff, 0, 3, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 2, 8, 10, 1, 0, + NPC_S_KPU8_UDP, 8, 0, + NPC_LID_LC, NPC_LT_NA, + 0, + 1, 0xff, 0, 3, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 1, 0, + NPC_S_KPU8_SCTP, 8, 0, + NPC_LID_LC, NPC_LT_NA, + 0, + 1, 0xff, 0, 3, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 1, 0, + NPC_S_KPU8_ICMP, 8, 0, + NPC_LID_LC, NPC_LT_NA, + 0, + 1, 0xff, 0, 3, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 1, 0, + NPC_S_KPU8_ICMP6, 8, 0, + NPC_LID_LC, NPC_LT_NA, + 0, + 1, 0xff, 0, 3, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 2, 0, + NPC_S_KPU9_ESP, 8, 0, + NPC_LID_LC, NPC_LT_NA, + 0, + 1, 0xff, 0, 3, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 1, 0, + NPC_S_KPU8_AH, 8, 0, + NPC_LID_LC, NPC_LT_NA, + 0, + 1, 0xff, 0, 3, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 1, 0, + NPC_S_KPU8_GRE, 8, 0, + NPC_LID_LC, NPC_LT_NA, + 0, + 1, 0xff, 0, 3, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 6, 0, 0, 5, 0, + NPC_S_KPU12_TU_IP6, 8, 0, + NPC_LID_LC, NPC_LT_NA, + 0, + 1, 0xff, 0, 3, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 2, 6, 10, 2, 0, + NPC_S_KPU9_TU_MPLS_IN_IP, 8, 0, + NPC_LID_LC, NPC_LT_NA, + 0, + 1, 0xff, 0, 3, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 0, 0, + NPC_S_KPU7_IP6_ROUT, 8, 0, + NPC_LID_LC, NPC_LT_NA, + 0, + 1, 0xff, 0, 3, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 2, 0, 0, 0, + NPC_S_KPU7_IP6_FRAG, 8, 0, + NPC_LID_LC, NPC_LT_NA, + 0, + 1, 0xff, 0, 3, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 0, 1, + NPC_S_NA, 0, 0, + NPC_LID_LC, NPC_LT_NA, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 2, 12, 0, 1, 0, + NPC_S_KPU8_TCP, 8, 0, + NPC_LID_LC, NPC_LT_NA, + 0, + 1, 0xff, 0, 3, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 2, 8, 10, 1, 0, + NPC_S_KPU8_UDP, 8, 0, + NPC_LID_LC, NPC_LT_NA, + 0, + 1, 0xff, 0, 3, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 1, 0, + NPC_S_KPU8_SCTP, 8, 0, + NPC_LID_LC, NPC_LT_NA, + 0, + 1, 0xff, 0, 3, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 1, 0, + NPC_S_KPU8_ICMP, 8, 0, + NPC_LID_LC, NPC_LT_NA, + 0, + 1, 0xff, 0, 3, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 1, 0, + NPC_S_KPU8_ICMP6, 8, 0, + NPC_LID_LC, NPC_LT_NA, + 0, + 1, 0xff, 0, 3, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 2, 0, + NPC_S_KPU9_ESP, 8, 0, + NPC_LID_LC, NPC_LT_NA, + 0, + 1, 0xff, 0, 3, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 1, 0, + NPC_S_KPU8_AH, 8, 0, + NPC_LID_LC, NPC_LT_NA, + 0, + 1, 0xff, 0, 3, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 1, 0, + NPC_S_KPU8_GRE, 8, 0, + NPC_LID_LC, NPC_LT_NA, + 0, + 1, 0xff, 0, 3, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 6, 0, 0, 5, 0, + NPC_S_KPU12_TU_IP6, 8, 0, + NPC_LID_LC, NPC_LT_NA, + 0, + 1, 0xff, 0, 3, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 2, 6, 10, 2, 0, + NPC_S_KPU9_TU_MPLS_IN_IP, 8, 0, + NPC_LID_LC, NPC_LT_NA, + 0, + 1, 0xff, 0, 3, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 2, 0, 0, 0, + NPC_S_KPU7_IP6_FRAG, 8, 0, + NPC_LID_LC, NPC_LT_NA, + 0, + 1, 0xff, 0, 3, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 0, 1, + NPC_S_NA, 0, 0, + NPC_LID_LC, NPC_LT_NA, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 2, 12, 0, 1, 0, + NPC_S_KPU8_TCP, 8, 0, + NPC_LID_LC, NPC_LT_NA, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 2, 8, 10, 1, 0, + NPC_S_KPU8_UDP, 8, 0, + NPC_LID_LC, NPC_LT_NA, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 1, 0, + NPC_S_KPU8_SCTP, 8, 0, + NPC_LID_LC, NPC_LT_NA, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 1, 0, + NPC_S_KPU8_ICMP, 8, 0, + NPC_LID_LC, NPC_LT_NA, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 1, 0, + NPC_S_KPU8_ICMP6, 8, 0, + NPC_LID_LC, NPC_LT_NA, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 2, 0, + NPC_S_KPU9_ESP, 8, 0, + NPC_LID_LC, NPC_LT_NA, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 1, 0, + NPC_S_KPU8_AH, 8, 0, + NPC_LID_LC, NPC_LT_NA, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 1, 0, + NPC_S_KPU8_GRE, 8, 0, + NPC_LID_LC, NPC_LT_NA, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 6, 0, 0, 5, 0, + NPC_S_KPU12_TU_IP6, 8, 0, + NPC_LID_LC, NPC_LT_NA, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 2, 6, 10, 2, 0, + NPC_S_KPU9_TU_MPLS_IN_IP, 8, 0, + NPC_LID_LC, NPC_LT_NA, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 0, 1, + NPC_S_NA, 0, 0, + NPC_LID_LC, NPC_LT_NA, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 2, 12, 0, 1, 0, + NPC_S_KPU8_TCP, 8, 0, + NPC_LID_LC, NPC_LT_NA, + 0, + 1, 0xff, 0, 3, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 2, 8, 10, 1, 0, + NPC_S_KPU8_UDP, 8, 0, + NPC_LID_LC, NPC_LT_NA, + 0, + 1, 0xff, 0, 3, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 1, 0, + NPC_S_KPU8_SCTP, 8, 0, + NPC_LID_LC, NPC_LT_NA, + 0, + 1, 0xff, 0, 3, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 1, 0, + NPC_S_KPU8_ICMP, 8, 0, + NPC_LID_LC, NPC_LT_NA, + 0, + 1, 0xff, 0, 3, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 1, 0, + NPC_S_KPU8_ICMP6, 8, 0, + NPC_LID_LC, NPC_LT_NA, + 0, + 1, 0xff, 0, 3, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 2, 0, + NPC_S_KPU9_ESP, 8, 0, + NPC_LID_LC, NPC_LT_NA, + 0, + 1, 0xff, 0, 3, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 1, 0, + NPC_S_KPU8_AH, 8, 0, + NPC_LID_LC, NPC_LT_NA, + 0, + 1, 0xff, 0, 3, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 1, 0, + NPC_S_KPU8_GRE, 8, 0, + NPC_LID_LC, NPC_LT_NA, + 0, + 1, 0xff, 0, 3, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 6, 0, 0, 5, 0, + NPC_S_KPU12_TU_IP6, 8, 0, + NPC_LID_LC, NPC_LT_NA, + 0, + 1, 0xff, 0, 3, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 2, 6, 10, 2, 0, + NPC_S_KPU9_TU_MPLS_IN_IP, 8, 0, + NPC_LID_LC, NPC_LT_NA, + 0, + 1, 0xff, 0, 3, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 0, 0, + NPC_S_KPU7_IP6_ROUT, 8, 0, + NPC_LID_LC, NPC_LT_NA, + 0, + 1, 0xff, 0, 3, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 2, 0, 0, 0, + NPC_S_KPU7_CPT_IP6_FRAG, 8, 0, + NPC_LID_LC, NPC_LT_NA, + 0, + 1, 0xff, 0, 3, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 0, 1, + NPC_S_NA, 0, 0, + NPC_LID_LC, NPC_LT_NA, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 2, 12, 0, 1, 0, + NPC_S_KPU8_TCP, 8, 0, + NPC_LID_LC, NPC_LT_NA, + 0, + 1, 0xff, 0, 3, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 2, 8, 10, 1, 0, + NPC_S_KPU8_UDP, 8, 0, + NPC_LID_LC, NPC_LT_NA, + 0, + 1, 0xff, 0, 3, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 1, 0, + NPC_S_KPU8_SCTP, 8, 0, + NPC_LID_LC, NPC_LT_NA, + 0, + 1, 0xff, 0, 3, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 1, 0, + NPC_S_KPU8_ICMP, 8, 0, + NPC_LID_LC, NPC_LT_NA, + 0, + 1, 0xff, 0, 3, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 1, 0, + NPC_S_KPU8_ICMP6, 8, 0, + NPC_LID_LC, NPC_LT_NA, + 0, + 1, 0xff, 0, 3, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 2, 0, + NPC_S_KPU9_ESP, 8, 0, + NPC_LID_LC, NPC_LT_NA, + 0, + 1, 0xff, 0, 3, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 1, 0, + NPC_S_KPU8_AH, 8, 0, + NPC_LID_LC, NPC_LT_NA, + 0, + 1, 0xff, 0, 3, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 1, 0, + NPC_S_KPU8_GRE, 8, 0, + NPC_LID_LC, NPC_LT_NA, + 0, + 1, 0xff, 0, 3, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 6, 0, 0, 5, 0, + NPC_S_KPU12_TU_IP6, 8, 0, + NPC_LID_LC, NPC_LT_NA, + 0, + 1, 0xff, 0, 3, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 2, 6, 10, 2, 0, + NPC_S_KPU9_TU_MPLS_IN_IP, 8, 0, + NPC_LID_LC, NPC_LT_NA, + 0, + 1, 0xff, 0, 3, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 2, 0, 0, 0, + NPC_S_KPU7_CPT_IP6_FRAG, 8, 0, + NPC_LID_LC, NPC_LT_NA, + 0, + 1, 0xff, 0, 3, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 0, 1, + NPC_S_NA, 0, 0, + NPC_LID_LC, NPC_LT_NA, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_LC, NPC_EC_UNK, + 0, 0, 0, 0, 1, + NPC_S_NA, 0, 0, + NPC_LID_LC, NPC_LT_NA, + 0, + 0, 0, 0, 0, + }, +}; + +static struct npc_kpu_profile_action kpu7_action_entries[] = { + NPC_KPU_NOP_ACTION, + NPC_KPU_NOP_ACTION, + NPC_KPU_NOP_ACTION, + NPC_KPU_NOP_ACTION, + NPC_KPU_NOP_ACTION, + NPC_KPU_NOP_ACTION, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 0, 1, + NPC_S_NA, 0, 0, + NPC_LID_LC, NPC_LT_NA, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 2, 12, 0, 0, 0, + NPC_S_KPU8_TCP, 8, 0, + NPC_LID_LC, NPC_LT_NA, + 0, + 1, 0xff, 0, 3, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 2, 8, 10, 0, 0, + NPC_S_KPU8_UDP, 8, 0, + NPC_LID_LC, NPC_LT_NA, + 0, + 1, 0xff, 0, 3, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 0, 0, + NPC_S_KPU8_SCTP, 8, 0, + NPC_LID_LC, NPC_LT_NA, + 0, + 1, 0xff, 0, 3, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 0, 0, + NPC_S_KPU8_ICMP, 8, 0, + NPC_LID_LC, NPC_LT_NA, + 0, + 1, 0xff, 0, 3, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 0, 0, + NPC_S_KPU8_ICMP6, 8, 0, + NPC_LID_LC, NPC_LT_NA, + 0, + 1, 0xff, 0, 3, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 1, 0, + NPC_S_KPU9_ESP, 8, 0, + NPC_LID_LC, NPC_LT_NA, + 0, + 1, 0xff, 0, 3, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 0, 0, + NPC_S_KPU8_AH, 8, 0, + NPC_LID_LC, NPC_LT_NA, + 0, + 1, 0xff, 0, 3, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 0, 0, + NPC_S_KPU8_GRE, 8, 0, + NPC_LID_LC, NPC_LT_NA, + 0, + 1, 0xff, 0, 3, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 6, 0, 0, 4, 0, + NPC_S_KPU12_TU_IP6, 8, 0, + NPC_LID_LC, NPC_LT_NA, + 0, + 1, 0xff, 0, 3, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 2, 6, 10, 1, 0, + NPC_S_KPU9_TU_MPLS_IN_IP, 8, 0, + NPC_LID_LC, NPC_LT_NA, + 0, + 1, 0xff, 0, 3, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 0, 1, + NPC_S_NA, 0, 0, + NPC_LID_LC, NPC_LT_NA, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 0, 1, + NPC_S_NA, 0, 0, + NPC_LID_LC, NPC_LT_NA, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 0, 1, + NPC_S_NA, 0, 0, + NPC_LID_LC, NPC_LT_NA, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 0, 1, + NPC_S_NA, 0, 0, + NPC_LID_LC, NPC_LT_NA, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 0, 1, + NPC_S_NA, 0, 0, + NPC_LID_LC, NPC_LT_NA, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 0, 1, + NPC_S_NA, 0, 0, + NPC_LID_LC, NPC_LT_NA, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 0, 1, + NPC_S_NA, 0, 0, + NPC_LID_LC, NPC_LT_NA, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 0, 1, + NPC_S_NA, 0, 0, + NPC_LID_LC, NPC_LT_NA, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 0, 1, + NPC_S_NA, 0, 0, + NPC_LID_LC, NPC_LT_NA, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 0, 1, + NPC_S_NA, 0, 0, + NPC_LID_LC, NPC_LT_NA, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 0, 1, + NPC_S_NA, 0, 0, + NPC_LID_LC, NPC_LT_NA, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 0, 1, + NPC_S_NA, 0, 0, + NPC_LID_LC, NPC_LT_NA, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 2, 12, 0, 0, 0, + NPC_S_KPU8_TCP, 8, 0, + NPC_LID_LC, NPC_LT_NA, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 2, 8, 10, 0, 0, + NPC_S_KPU8_UDP, 8, 0, + NPC_LID_LC, NPC_LT_NA, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 0, 0, + NPC_S_KPU8_SCTP, 8, 0, + NPC_LID_LC, NPC_LT_NA, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 0, 0, + NPC_S_KPU8_ICMP, 8, 0, + NPC_LID_LC, NPC_LT_NA, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 0, 0, + NPC_S_KPU8_ICMP6, 8, 0, + NPC_LID_LC, NPC_LT_NA, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 1, 0, + NPC_S_KPU9_ESP, 8, 0, + NPC_LID_LC, NPC_LT_NA, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 0, 0, + NPC_S_KPU8_AH, 8, 0, + NPC_LID_LC, NPC_LT_NA, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 0, 0, + NPC_S_KPU8_GRE, 8, 0, + NPC_LID_LC, NPC_LT_NA, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 6, 0, 0, 4, 0, + NPC_S_KPU12_TU_IP6, 8, 0, + NPC_LID_LC, NPC_LT_NA, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 2, 6, 10, 1, 0, + NPC_S_KPU9_TU_MPLS_IN_IP, 8, 0, + NPC_LID_LC, NPC_LT_NA, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 0, 1, + NPC_S_NA, 0, 0, + NPC_LID_LC, NPC_LT_NA, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_LC, NPC_EC_UNK, + 0, 0, 0, 0, 1, + NPC_S_NA, 0, 0, + NPC_LID_LC, NPC_LT_NA, + 0, + 0, 0, 0, 0, + }, +}; + +static struct npc_kpu_profile_action kpu8_action_entries[] = { + NPC_KPU_NOP_ACTION, + NPC_KPU_NOP_ACTION, + NPC_KPU_NOP_ACTION, + NPC_KPU_NOP_ACTION, + NPC_KPU_NOP_ACTION, + NPC_KPU_NOP_ACTION, + { + NPC_ERRLEV_LD, NPC_EC_TCP_FLAGS_FIN_ONLY, + 0, 0, 0, 0, 1, + NPC_S_NA, 0, 1, + NPC_LID_LD, NPC_LT_LD_TCP, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_LD, NPC_EC_TCP_FLAGS_ZERO, + 0, 0, 0, 0, 1, + NPC_S_NA, 0, 1, + NPC_LID_LD, NPC_LT_LD_TCP, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_LD, NPC_EC_TCP_FLAGS_RST_FIN, + 0, 0, 0, 0, 1, + NPC_S_NA, 0, 1, + NPC_LID_LD, NPC_LT_LD_TCP, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_LD, NPC_EC_TCP_FLAGS_URG_SYN, + 0, 0, 0, 0, 1, + NPC_S_NA, 0, 1, + NPC_LID_LD, NPC_LT_LD_TCP, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_LD, NPC_EC_TCP_FLAGS_RST_SYN, + 0, 0, 0, 0, 1, + NPC_S_NA, 0, 1, + NPC_LID_LD, NPC_LT_LD_TCP, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_LD, NPC_EC_TCP_FLAGS_SYN_FIN, + 0, 0, 0, 0, 1, + NPC_S_NA, 0, 1, + NPC_LID_LD, NPC_LT_LD_TCP, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 7, 0, + NPC_S_KPU16_HTTP_DATA, 20, 1, + NPC_LID_LD, NPC_LT_LD_TCP, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 7, 0, + NPC_S_KPU16_HTTPS_DATA, 20, 1, + NPC_LID_LD, NPC_LT_LD_TCP, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 7, 0, + NPC_S_KPU16_PPTP_DATA, 20, 1, + NPC_LID_LD, NPC_LT_LD_TCP, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 7, 0, + NPC_S_KPU16_TCP_DATA, 20, 1, + NPC_LID_LD, NPC_LT_LD_TCP, + NPC_F_LD_L_TCP_UNK_PORT, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 7, 0, + NPC_S_KPU16_HTTP_DATA, 0, 1, + NPC_LID_LD, NPC_LT_LD_TCP, + NPC_F_LD_L_TCP_HAS_OPTIONS, + 12, 0xf0, 1, 2, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 7, 0, + NPC_S_KPU16_HTTPS_DATA, 0, 1, + NPC_LID_LD, NPC_LT_LD_TCP, + NPC_F_LD_L_TCP_HAS_OPTIONS, + 12, 0xf0, 1, 2, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 7, 0, + NPC_S_KPU16_PPTP_DATA, 0, 1, + NPC_LID_LD, NPC_LT_LD_TCP, + NPC_F_LD_L_TCP_HAS_OPTIONS, + 12, 0xf0, 1, 2, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 7, 0, + NPC_S_KPU16_TCP_DATA, 0, 1, + NPC_LID_LD, NPC_LT_LD_TCP, + NPC_F_LD_L_TCP_UNK_PORT_HAS_OPTIONS, + 12, 0xf0, 1, 2, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 2, 0, 0, + NPC_S_KPU9_VXLAN, 8, 1, + NPC_LID_LD, NPC_LT_LD_UDP, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 2, 0, 0, + NPC_S_KPU9_VXLANGPE, 8, 1, + NPC_LID_LD, NPC_LT_LD_UDP, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 2, 0, 0, + NPC_S_KPU9_GENEVE, 8, 1, + NPC_LID_LD, NPC_LT_LD_UDP, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 2, 0, 0, + NPC_S_KPU9_GTPC, 8, 1, + NPC_LID_LD, NPC_LT_LD_UDP, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 2, 0, 0, + NPC_S_KPU9_GTPU, 8, 1, + NPC_LID_LD, NPC_LT_LD_UDP, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 0, 1, + NPC_S_KPU16_UDP_PTP, 0, 1, + NPC_LID_LD, NPC_LT_LD_UDP, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 0, 1, + NPC_S_KPU16_UDP_PTP, 0, 1, + NPC_LID_LD, NPC_LT_LD_UDP, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 2, 6, 10, 0, 0, + NPC_S_KPU9_TU_MPLS_IN_UDP, 8, 1, + NPC_LID_LD, NPC_LT_LD_UDP, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 0, 0, + NPC_S_KPU9_ESP, 8, 1, + NPC_LID_LD, NPC_LT_LD_UDP, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 0, 0, + NPC_S_KPU9_ESP, 8, 1, + NPC_LID_LD, NPC_LT_LD_UDP, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 7, 0, + NPC_S_KPU16_UDP_DATA, 8, 1, + NPC_LID_LD, NPC_LT_LD_UDP, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 0, 1, + NPC_S_NA, 0, 1, + NPC_LID_LD, NPC_LT_LD_SCTP, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 0, 1, + NPC_S_NA, 0, 1, + NPC_LID_LD, NPC_LT_LD_ICMP, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 0, 1, + NPC_S_NA, 0, 1, + NPC_LID_LD, NPC_LT_LD_IGMP, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 0, 1, + NPC_S_NA, 0, 1, + NPC_LID_LD, NPC_LT_LD_ICMP6, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 0, 1, + NPC_S_NA, 0, 1, + NPC_LID_LD, NPC_LT_LD_AH, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 12, 16, 20, 2, 0, + NPC_S_KPU11_TU_ETHER, 8, 1, + NPC_LID_LD, NPC_LT_LD_NVGRE, + NPC_F_LD_L_GRE_NVGRE, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_LD, NPC_EC_NVGRE, + 0, 0, 0, 0, 1, + NPC_S_NA, 0, 0, + NPC_LID_LD, NPC_LT_NA, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 2, 6, 10, 0, 0, + NPC_S_KPU9_TU_MPLS_IN_GRE, 4, 1, + NPC_LID_LD, NPC_LT_LD_GRE, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 2, 6, 10, 0, 0, + NPC_S_KPU9_TU_MPLS_IN_GRE, 8, 1, + NPC_LID_LD, NPC_LT_LD_GRE, + NPC_F_LD_L_GRE_HAS_CSUM, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 2, 6, 10, 0, 0, + NPC_S_KPU9_TU_MPLS_IN_GRE, 8, 1, + NPC_LID_LD, NPC_LT_LD_GRE, + NPC_F_LD_L_GRE_HAS_KEY, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 2, 6, 10, 0, 0, + NPC_S_KPU9_TU_MPLS_IN_GRE, 8, 1, + NPC_LID_LD, NPC_LT_LD_GRE, + NPC_F_LD_L_GRE_HAS_SEQ, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 2, 6, 10, 0, 0, + NPC_S_KPU9_TU_MPLS_IN_GRE, 12, 1, + NPC_LID_LD, NPC_LT_LD_GRE, + NPC_F_LD_L_GRE_HAS_CSUM_KEY, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 2, 6, 10, 0, 0, + NPC_S_KPU9_TU_MPLS_IN_GRE, 12, 1, + NPC_LID_LD, NPC_LT_LD_GRE, + NPC_F_LD_L_GRE_HAS_CSUM_SEQ, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 2, 6, 10, 0, 0, + NPC_S_KPU9_TU_MPLS_IN_GRE, 12, 1, + NPC_LID_LD, NPC_LT_LD_GRE, + NPC_F_LD_L_GRE_HAS_KEY_SEQ, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 2, 6, 10, 0, 0, + NPC_S_KPU9_TU_MPLS_IN_GRE, 16, 1, + NPC_LID_LD, NPC_LT_LD_GRE, + NPC_F_LD_L_GRE_HAS_CSUM_KEY_SEQ, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 2, 6, 10, 0, 0, + NPC_S_KPU9_TU_MPLS_IN_GRE, 4, 1, + NPC_LID_LD, NPC_LT_LD_GRE, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 2, 6, 10, 0, 0, + NPC_S_KPU9_TU_MPLS_IN_GRE, 8, 1, + NPC_LID_LD, NPC_LT_LD_GRE, + NPC_F_LD_L_GRE_HAS_CSUM, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 2, 6, 10, 0, 0, + NPC_S_KPU9_TU_MPLS_IN_GRE, 8, 1, + NPC_LID_LD, NPC_LT_LD_GRE, + NPC_F_LD_L_GRE_HAS_KEY, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 2, 6, 10, 0, 0, + NPC_S_KPU9_TU_MPLS_IN_GRE, 8, 1, + NPC_LID_LD, NPC_LT_LD_GRE, + NPC_F_LD_L_GRE_HAS_SEQ, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 2, 6, 10, 0, 0, + NPC_S_KPU9_TU_MPLS_IN_GRE, 12, 1, + NPC_LID_LD, NPC_LT_LD_GRE, + NPC_F_LD_L_GRE_HAS_CSUM_KEY, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 2, 6, 10, 0, 0, + NPC_S_KPU9_TU_MPLS_IN_GRE, 12, 1, + NPC_LID_LD, NPC_LT_LD_GRE, + NPC_F_LD_L_GRE_HAS_CSUM_SEQ, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 2, 6, 10, 0, 0, + NPC_S_KPU9_TU_MPLS_IN_GRE, 12, 1, + NPC_LID_LD, NPC_LT_LD_GRE, + NPC_F_LD_L_GRE_HAS_KEY_SEQ, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 2, 6, 10, 0, 0, + NPC_S_KPU9_TU_MPLS_IN_GRE, 16, 1, + NPC_LID_LD, NPC_LT_LD_GRE, + NPC_F_LD_L_GRE_HAS_CSUM_KEY_SEQ, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 2, 0, 0, 0, 0, + NPC_S_KPU9_TU_NSH_IN_GRE, 4, 1, + NPC_LID_LD, NPC_LT_LD_GRE, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 2, 0, 0, 0, 0, + NPC_S_KPU9_TU_NSH_IN_GRE, 8, 1, + NPC_LID_LD, NPC_LT_LD_GRE, + NPC_F_LD_L_GRE_HAS_CSUM, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 2, 0, 0, 0, 0, + NPC_S_KPU9_TU_NSH_IN_GRE, 8, 1, + NPC_LID_LD, NPC_LT_LD_GRE, + NPC_F_LD_L_GRE_HAS_KEY, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 2, 0, 0, 0, 0, + NPC_S_KPU9_TU_NSH_IN_GRE, 8, 1, + NPC_LID_LD, NPC_LT_LD_GRE, + NPC_F_LD_L_GRE_HAS_SEQ, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 2, 0, 0, 0, 0, + NPC_S_KPU9_TU_NSH_IN_GRE, 12, 1, + NPC_LID_LD, NPC_LT_LD_GRE, + NPC_F_LD_L_GRE_HAS_CSUM_KEY, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 2, 0, 0, 0, 0, + NPC_S_KPU9_TU_NSH_IN_GRE, 12, 1, + NPC_LID_LD, NPC_LT_LD_GRE, + NPC_F_LD_L_GRE_HAS_CSUM_SEQ, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 2, 0, 0, 0, 0, + NPC_S_KPU9_TU_NSH_IN_GRE, 12, 1, + NPC_LID_LD, NPC_LT_LD_GRE, + NPC_F_LD_L_GRE_HAS_KEY_SEQ, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 2, 0, 0, 0, 0, + NPC_S_KPU9_TU_NSH_IN_GRE, 16, 1, + NPC_LID_LD, NPC_LT_LD_GRE, + NPC_F_LD_L_GRE_HAS_CSUM_KEY_SEQ, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 8, 0, 6, 3, 0, + NPC_S_KPU12_TU_IP, 4, 1, + NPC_LID_LD, NPC_LT_LD_GRE, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 8, 0, 6, 3, 0, + NPC_S_KPU12_TU_IP, 8, 1, + NPC_LID_LD, NPC_LT_LD_GRE, + NPC_F_LD_L_GRE_HAS_CSUM, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 8, 0, 6, 3, 0, + NPC_S_KPU12_TU_IP, 8, 1, + NPC_LID_LD, NPC_LT_LD_GRE, + NPC_F_LD_L_GRE_HAS_KEY, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 8, 0, 6, 3, 0, + NPC_S_KPU12_TU_IP, 8, 1, + NPC_LID_LD, NPC_LT_LD_GRE, + NPC_F_LD_L_GRE_HAS_SEQ, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 8, 0, 6, 3, 0, + NPC_S_KPU12_TU_IP, 12, 1, + NPC_LID_LD, NPC_LT_LD_GRE, + NPC_F_LD_L_GRE_HAS_CSUM_KEY, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 8, 0, 6, 3, 0, + NPC_S_KPU12_TU_IP, 12, 1, + NPC_LID_LD, NPC_LT_LD_GRE, + NPC_F_LD_L_GRE_HAS_CSUM_SEQ, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 8, 0, 6, 3, 0, + NPC_S_KPU12_TU_IP, 12, 1, + NPC_LID_LD, NPC_LT_LD_GRE, + NPC_F_LD_L_GRE_HAS_KEY_SEQ, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 8, 0, 6, 3, 0, + NPC_S_KPU12_TU_IP, 16, 1, + NPC_LID_LD, NPC_LT_LD_GRE, + NPC_F_LD_L_GRE_HAS_CSUM_KEY_SEQ, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 6, 0, 0, 3, 0, + NPC_S_KPU12_TU_IP6, 4, 1, + NPC_LID_LD, NPC_LT_LD_GRE, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 6, 0, 0, 3, 0, + NPC_S_KPU12_TU_IP6, 8, 1, + NPC_LID_LD, NPC_LT_LD_GRE, + NPC_F_LD_L_GRE_HAS_CSUM, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 6, 0, 0, 3, 0, + NPC_S_KPU12_TU_IP6, 8, 1, + NPC_LID_LD, NPC_LT_LD_GRE, + NPC_F_LD_L_GRE_HAS_KEY, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 6, 0, 0, 3, 0, + NPC_S_KPU12_TU_IP6, 8, 1, + NPC_LID_LD, NPC_LT_LD_GRE, + NPC_F_LD_L_GRE_HAS_SEQ, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 6, 0, 0, 3, 0, + NPC_S_KPU12_TU_IP6, 12, 1, + NPC_LID_LD, NPC_LT_LD_GRE, + NPC_F_LD_L_GRE_HAS_CSUM_KEY, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 6, 0, 0, 3, 0, + NPC_S_KPU12_TU_IP6, 12, 1, + NPC_LID_LD, NPC_LT_LD_GRE, + NPC_F_LD_L_GRE_HAS_CSUM_SEQ, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 6, 0, 0, 3, 0, + NPC_S_KPU12_TU_IP6, 12, 1, + NPC_LID_LD, NPC_LT_LD_GRE, + NPC_F_LD_L_GRE_HAS_KEY_SEQ, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 6, 0, 0, 3, 0, + NPC_S_KPU12_TU_IP6, 16, 1, + NPC_LID_LD, NPC_LT_LD_GRE, + NPC_F_LD_L_GRE_HAS_CSUM_KEY_SEQ, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 0, 1, + NPC_S_NA, 0, 1, + NPC_LID_LD, NPC_LT_LD_GRE, + NPC_F_LD_L_GRE_HAS_ROUTE, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 0, 1, + NPC_S_NA, 0, 1, + NPC_LID_LD, NPC_LT_LD_GRE, + NPC_F_LD_L_GRE_UNK_PROTO, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_LD, NPC_EC_GRE, + 0, 0, 0, 0, 1, + NPC_S_NA, 0, 0, + NPC_LID_LD, NPC_LT_NA, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 2, 0, + NPC_S_KPU11_TU_PPP, 8, 1, + NPC_LID_LD, NPC_LT_LD_GRE, + NPC_F_LD_L_GRE_VER1, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 2, 0, + NPC_S_KPU11_TU_PPP, 12, 1, + NPC_LID_LD, NPC_LT_LD_GRE, + NPC_F_LD_L_GRE_VER1_HAS_SEQ, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 2, 0, + NPC_S_KPU11_TU_PPP, 12, 1, + NPC_LID_LD, NPC_LT_LD_GRE, + NPC_F_LD_L_GRE_VER1_HAS_ACK, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 2, 0, + NPC_S_KPU11_TU_PPP, 16, 1, + NPC_LID_LD, NPC_LT_LD_GRE, + NPC_F_LD_L_GRE_VER1_HAS_SEQ_ACK, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 0, 1, + NPC_S_NA, 0, 1, + NPC_LID_LD, NPC_LT_LD_GRE, + NPC_F_LD_L_GRE_VER1_UNK_PROTO, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_LD, NPC_EC_GRE_VER1, + 0, 0, 0, 0, 1, + NPC_S_NA, 0, 0, + NPC_LID_LD, NPC_LT_NA, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_LD, NPC_EC_UNK, + 0, 0, 0, 0, 1, + NPC_S_NA, 0, 0, + NPC_LID_LD, NPC_LT_NA, + 0, + 0, 0, 0, 0, + }, +}; + +static struct npc_kpu_profile_action kpu9_action_entries[] = { + NPC_KPU_NOP_ACTION, + NPC_KPU_NOP_ACTION, + NPC_KPU_NOP_ACTION, + NPC_KPU_NOP_ACTION, + NPC_KPU_NOP_ACTION, + NPC_KPU_NOP_ACTION, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 0, 0, + NPC_S_KPU10_TU_MPLS_PL, 4, 1, + NPC_LID_LE, NPC_LT_LE_TU_MPLS_IN_GRE, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 0, 0, + NPC_S_KPU10_TU_MPLS_PL, 8, 1, + NPC_LID_LE, NPC_LT_LE_TU_MPLS_IN_GRE, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 0, 0, + NPC_S_KPU10_TU_MPLS_PL, 12, 1, + NPC_LID_LE, NPC_LT_LE_TU_MPLS_IN_GRE, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 2, 4, 0, 0, 0, + NPC_S_KPU10_TU_MPLS, 12, 1, + NPC_LID_LE, NPC_LT_LE_TU_MPLS_IN_GRE, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 0, 0, + NPC_S_KPU10_TU_MPLS_PL, 4, 1, + NPC_LID_LD, NPC_LT_LD_TU_MPLS_IN_NSH, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 0, 0, + NPC_S_KPU10_TU_MPLS_PL, 8, 1, + NPC_LID_LD, NPC_LT_LD_TU_MPLS_IN_NSH, + NPC_F_LD_L_MPLS_2_LABELS, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 0, 0, + NPC_S_KPU10_TU_MPLS_PL, 12, 1, + NPC_LID_LD, NPC_LT_LD_TU_MPLS_IN_NSH, + NPC_F_LD_L_MPLS_3_LABELS, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 2, 4, 0, 0, 0, + NPC_S_KPU10_TU_MPLS, 12, 1, + NPC_LID_LD, NPC_LT_LD_TU_MPLS_IN_NSH, + NPC_F_LD_L_MPLS_4_LABELS, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 0, 0, + NPC_S_KPU10_TU_MPLS_PL, 4, 1, + NPC_LID_LD, NPC_LT_LD_TU_MPLS_IN_IP, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 0, 0, + NPC_S_KPU10_TU_MPLS_PL, 8, 1, + NPC_LID_LD, NPC_LT_LD_TU_MPLS_IN_IP, + NPC_F_LD_L_MPLS_2_LABELS, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 0, 0, + NPC_S_KPU10_TU_MPLS_PL, 12, 1, + NPC_LID_LD, NPC_LT_LD_TU_MPLS_IN_IP, + NPC_F_LD_L_MPLS_3_LABELS, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 2, 4, 0, 0, 0, + NPC_S_KPU10_TU_MPLS, 12, 1, + NPC_LID_LD, NPC_LT_LD_TU_MPLS_IN_IP, + NPC_F_LD_L_MPLS_4_LABELS, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 8, 0, 6, 2, 0, + NPC_S_KPU12_TU_IP, 0, 1, + NPC_LID_LE, NPC_LT_LE_TU_NSH_IN_GRE, + 0, + 1, 0x3f, 0, 2, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 6, 0, 0, 2, 0, + NPC_S_KPU12_TU_IP6, 0, 1, + NPC_LID_LE, NPC_LT_LE_TU_NSH_IN_GRE, + 0, + 1, 0x3f, 0, 2, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 12, 16, 20, 1, 0, + NPC_S_KPU11_TU_ETHER, 0, 1, + NPC_LID_LE, NPC_LT_LE_TU_NSH_IN_GRE, + 0, + 1, 0x3f, 0, 2, + }, + { + NPC_ERRLEV_LE, NPC_EC_NSH_UNK, + 0, 0, 0, 0, 1, + NPC_S_NA, 0, 1, + NPC_LID_LE, NPC_LT_LE_TU_NSH_IN_GRE, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 12, 16, 20, 1, 0, + NPC_S_KPU11_TU_ETHER, 8, 1, + NPC_LID_LE, NPC_LT_LE_VXLAN, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 12, 16, 20, 1, 0, + NPC_S_KPU11_TU_ETHER, 8, 1, + NPC_LID_LE, NPC_LT_LE_VXLAN, + NPC_F_LE_L_VXLAN_NOVNI, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_LE, NPC_EC_VXLAN, + 0, 0, 0, 0, 1, + NPC_S_NA, 0, 0, + NPC_LID_LE, NPC_LT_NA, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 8, 0, 6, 2, 0, + NPC_S_KPU12_TU_IP, 8, 1, + NPC_LID_LE, NPC_LT_LE_VXLANGPE, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 6, 0, 0, 2, 0, + NPC_S_KPU12_TU_IP6, 8, 1, + NPC_LID_LE, NPC_LT_LE_VXLANGPE, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 12, 16, 20, 1, 0, + NPC_S_KPU11_TU_ETHER, 8, 1, + NPC_LID_LE, NPC_LT_LE_VXLANGPE, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 2, 0, 0, 0, 0, + NPC_S_KPU10_TU_NSH_IN_VXLANGPE, 8, 1, + NPC_LID_LE, NPC_LT_LE_VXLANGPE, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 2, 6, 10, 0, 0, + NPC_S_KPU10_TU_MPLS_IN_VXLANGPE, 8, 1, + NPC_LID_LE, NPC_LT_LE_VXLANGPE, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 8, 0, 6, 2, 0, + NPC_S_KPU12_TU_IP, 8, 1, + NPC_LID_LE, NPC_LT_LE_VXLANGPE, + NPC_F_LE_L_VXLANGPE_NOVNI, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 6, 0, 0, 2, 0, + NPC_S_KPU12_TU_IP6, 8, 1, + NPC_LID_LE, NPC_LT_LE_VXLANGPE, + NPC_F_LE_L_VXLANGPE_NOVNI, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 12, 16, 20, 1, 0, + NPC_S_KPU11_TU_ETHER, 8, 1, + NPC_LID_LE, NPC_LT_LE_VXLANGPE, + NPC_F_LE_L_VXLANGPE_NOVNI, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 2, 0, 0, 0, 0, + NPC_S_KPU10_TU_NSH_IN_VXLANGPE, 8, 1, + NPC_LID_LE, NPC_LT_LE_VXLANGPE, + NPC_F_LE_L_VXLANGPE_NOVNI, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 2, 6, 10, 0, 0, + NPC_S_KPU10_TU_MPLS_IN_VXLANGPE, 8, 1, + NPC_LID_LE, NPC_LT_LE_VXLANGPE, + NPC_F_LE_L_VXLANGPE_NOVNI, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 0, 1, + NPC_S_NA, 0, 1, + NPC_LID_LE, NPC_LT_LE_VXLANGPE, + NPC_F_LE_L_VXLANGPE_UNK, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 0, 1, + NPC_S_NA, 0, 1, + NPC_LID_LE, NPC_LT_LE_VXLANGPE, + NPC_F_LE_L_VXLANGPE_NONP, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 12, 16, 20, 1, 0, + NPC_S_KPU11_TU_ETHER, 8, 1, + NPC_LID_LE, NPC_LT_LE_GENEVE, + 0, + 0, 0x3f, 0, 2, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 12, 16, 20, 1, 0, + NPC_S_KPU11_TU_ETHER, 8, 1, + NPC_LID_LE, NPC_LT_LE_GENEVE, + NPC_F_LE_L_GENEVE_OAM, + 0, 0x3f, 0, 2, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 12, 16, 20, 1, 0, + NPC_S_KPU11_TU_ETHER, 8, 1, + NPC_LID_LE, NPC_LT_LE_GENEVE, + NPC_F_LE_L_GENEVE_CRI_OPT, + 0, 0x3f, 0, 2, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 12, 16, 20, 1, 0, + NPC_S_KPU11_TU_ETHER, 8, 1, + NPC_LID_LE, NPC_LT_LE_GENEVE, + NPC_F_LE_L_GENEVE_OAM_CRI_OPT, + 0, 0x3f, 0, 2, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 8, 0, 6, 2, 0, + NPC_S_KPU12_TU_IP, 8, 1, + NPC_LID_LE, NPC_LT_LE_GENEVE, + 0, + 0, 0x3f, 0, 2, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 8, 0, 6, 2, 0, + NPC_S_KPU12_TU_IP, 8, 1, + NPC_LID_LE, NPC_LT_LE_GENEVE, + NPC_F_LE_L_GENEVE_OAM, + 0, 0x3f, 0, 2, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 8, 0, 6, 2, 0, + NPC_S_KPU12_TU_IP, 8, 1, + NPC_LID_LE, NPC_LT_LE_GENEVE, + NPC_F_LE_L_GENEVE_CRI_OPT, + 0, 0x3f, 0, 2, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 8, 0, 6, 2, 0, + NPC_S_KPU12_TU_IP, 8, 1, + NPC_LID_LE, NPC_LT_LE_GENEVE, + NPC_F_LE_L_GENEVE_OAM_CRI_OPT, + 0, 0x3f, 0, 2, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 6, 0, 0, 2, 0, + NPC_S_KPU12_TU_IP6, 8, 1, + NPC_LID_LE, NPC_LT_LE_GENEVE, + 0, + 0, 0x3f, 0, 2, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 6, 0, 0, 2, 0, + NPC_S_KPU12_TU_IP6, 8, 1, + NPC_LID_LE, NPC_LT_LE_GENEVE, + NPC_F_LE_L_GENEVE_OAM, + 0, 0x3f, 0, 2, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 6, 0, 0, 2, 0, + NPC_S_KPU12_TU_IP6, 8, 1, + NPC_LID_LE, NPC_LT_LE_GENEVE, + NPC_F_LE_L_GENEVE_CRI_OPT, + 0, 0x3f, 0, 2, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 6, 0, 0, 2, 0, + NPC_S_KPU12_TU_IP6, 8, 1, + NPC_LID_LE, NPC_LT_LE_GENEVE, + NPC_F_LE_L_GENEVE_OAM_CRI_OPT, + 0, 0x3f, 0, 2, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 0, 1, + NPC_S_NA, 0, 1, + NPC_LID_LE, NPC_LT_LE_GTPC, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 8, 0, 6, 2, 1, + NPC_S_NA, 0, 1, + NPC_LID_LE, NPC_LT_LE_GTPU, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 0, 0, + NPC_S_KPU10_TU_MPLS_PL, 4, 1, + NPC_LID_LE, NPC_LT_LE_TU_MPLS_IN_UDP, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 0, 0, + NPC_S_KPU10_TU_MPLS_PL, 8, 1, + NPC_LID_LE, NPC_LT_LE_TU_MPLS_IN_UDP, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 0, 0, + NPC_S_KPU10_TU_MPLS_PL, 12, 1, + NPC_LID_LE, NPC_LT_LE_TU_MPLS_IN_UDP, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 2, 4, 0, 0, 0, + NPC_S_KPU10_TU_MPLS, 12, 1, + NPC_LID_LE, NPC_LT_LE_TU_MPLS_IN_UDP, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 0, 1, + NPC_S_NA, 0, 1, + NPC_LID_LE, NPC_LT_LE_ESP, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_LE, NPC_EC_UNK, + 0, 0, 0, 0, 1, + NPC_S_NA, 0, 0, + NPC_LID_LE, NPC_LT_NA, + 0, + 0, 0, 0, 0, + }, +}; + +static struct npc_kpu_profile_action kpu10_action_entries[] = { + NPC_KPU_NOP_ACTION, + NPC_KPU_NOP_ACTION, + NPC_KPU_NOP_ACTION, + NPC_KPU_NOP_ACTION, + NPC_KPU_NOP_ACTION, + NPC_KPU_NOP_ACTION, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 8, 0, 6, 1, 0, + NPC_S_KPU12_TU_IP, 4, 0, + NPC_LID_LF, NPC_LT_NA, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 6, 0, 0, 1, 0, + NPC_S_KPU12_TU_IP6, 4, 0, + NPC_LID_LF, NPC_LT_NA, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 12, 16, 20, 0, 0, + NPC_S_KPU11_TU_ETHER, 8, 0, + NPC_LID_LF, NPC_LT_NA, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 12, 16, 20, 0, 0, + NPC_S_KPU11_TU_ETHER, 4, 0, + NPC_LID_LF, NPC_LT_NA, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_LE, NPC_EC_MPLS_2MANY, + 0, 0, 0, 0, 1, + NPC_S_NA, 0, 0, + NPC_LID_LF, NPC_LT_NA, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 8, 0, 6, 1, 0, + NPC_S_KPU12_TU_IP, 0, 0, + NPC_LID_LF, NPC_LT_NA, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 6, 0, 0, 1, 0, + NPC_S_KPU12_TU_IP6, 0, 0, + NPC_LID_LF, NPC_LT_NA, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 12, 16, 20, 0, 0, + NPC_S_KPU11_TU_ETHER, 4, 0, + NPC_LID_LF, NPC_LT_NA, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 12, 16, 20, 0, 0, + NPC_S_KPU11_TU_ETHER, 0, 0, + NPC_LID_LF, NPC_LT_NA, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 0, 0, + NPC_S_KPU11_TU_MPLS_PL, 4, 1, + NPC_LID_LF, NPC_LT_LF_TU_MPLS_IN_VXLANGPE, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 0, 0, + NPC_S_KPU11_TU_MPLS_PL, 8, 1, + NPC_LID_LF, NPC_LT_LF_TU_MPLS_IN_VXLANGPE, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 0, 0, + NPC_S_KPU11_TU_MPLS_PL, 12, 1, + NPC_LID_LF, NPC_LT_LF_TU_MPLS_IN_VXLANGPE, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 2, 4, 0, 0, 0, + NPC_S_KPU11_TU_MPLS, 12, 1, + NPC_LID_LF, NPC_LT_LF_TU_MPLS_IN_VXLANGPE, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 8, 0, 6, 1, 0, + NPC_S_KPU12_TU_IP, 0, 1, + NPC_LID_LF, NPC_LT_LF_TU_NSH_IN_VXLANGPE, + 0, + 1, 0x3f, 0, 2, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 6, 0, 0, 1, 0, + NPC_S_KPU12_TU_IP6, 0, 1, + NPC_LID_LF, NPC_LT_LF_TU_NSH_IN_VXLANGPE, + 0, + 1, 0x3f, 0, 2, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 6, 0, 0, 0, 0, + NPC_S_KPU11_TU_ETHER_IN_NSH, 0, 1, + NPC_LID_LF, NPC_LT_LF_TU_NSH_IN_VXLANGPE, + 0, + 1, 0x3f, 0, 2, + }, + { + NPC_ERRLEV_LF, NPC_EC_NSH_UNK, + 6, 0, 0, 0, 1, + NPC_S_NA, 0, 1, + NPC_LID_LF, NPC_LT_LF_TU_NSH_IN_VXLANGPE, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_LE, NPC_EC_UNK, + 0, 0, 0, 0, 1, + NPC_S_NA, 0, 0, + NPC_LID_LF, NPC_LT_NA, + 0, + 0, 0, 0, 0, + }, +}; + +static struct npc_kpu_profile_action kpu11_action_entries[] = { + NPC_KPU_NOP_ACTION, + NPC_KPU_NOP_ACTION, + NPC_KPU_NOP_ACTION, + NPC_KPU_NOP_ACTION, + NPC_KPU_NOP_ACTION, + NPC_KPU_NOP_ACTION, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 8, 0, 6, 0, 0, + NPC_S_KPU12_TU_IP, 14, 1, + NPC_LID_LF, NPC_LT_LF_TU_ETHER, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 6, 0, 0, 0, 0, + NPC_S_KPU12_TU_IP6, 14, 1, + NPC_LID_LF, NPC_LT_LF_TU_ETHER, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 0, 0, + NPC_S_KPU12_TU_ARP, 14, 1, + NPC_LID_LF, NPC_LT_LF_TU_ETHER, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 8, 0, 6, 0, 0, + NPC_S_KPU12_TU_IP, 18, 1, + NPC_LID_LF, NPC_LT_LF_TU_ETHER, + NPC_F_LF_L_WITH_CTAG, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 6, 0, 0, 0, 0, + NPC_S_KPU12_TU_IP6, 18, 1, + NPC_LID_LF, NPC_LT_LF_TU_ETHER, + NPC_F_LF_L_WITH_CTAG, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 0, 0, + NPC_S_KPU12_TU_ARP, 18, 1, + NPC_LID_LF, NPC_LT_LF_TU_ETHER, + NPC_F_LF_L_WITH_CTAG, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 0, 1, + NPC_S_NA, 0, 1, + NPC_LID_LF, NPC_LT_LF_TU_ETHER, + NPC_F_LF_U_UNK_ETYPE | NPC_F_LF_L_WITH_CTAG, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 8, 0, 6, 0, 0, + NPC_S_KPU12_TU_IP, 22, 1, + NPC_LID_LF, NPC_LT_LF_TU_ETHER, + NPC_F_LF_L_WITH_STAG_CTAG, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 6, 0, 0, 0, 0, + NPC_S_KPU12_TU_IP6, 22, 1, + NPC_LID_LF, NPC_LT_LF_TU_ETHER, + NPC_F_LF_L_WITH_STAG_CTAG, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 0, 0, + NPC_S_KPU12_TU_ARP, 22, 1, + NPC_LID_LF, NPC_LT_LF_TU_ETHER, + NPC_F_LF_L_WITH_STAG_CTAG, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 0, 1, + NPC_S_NA, 0, 1, + NPC_LID_LF, NPC_LT_LF_TU_ETHER, + NPC_F_LF_U_UNK_ETYPE | NPC_F_LF_L_WITH_STAG_CTAG, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 8, 0, 6, 0, 0, + NPC_S_KPU12_TU_IP, 18, 1, + NPC_LID_LF, NPC_LT_LF_TU_ETHER, + NPC_F_LF_L_WITH_CTAG, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 6, 0, 0, 0, 0, + NPC_S_KPU12_TU_IP6, 18, 1, + NPC_LID_LF, NPC_LT_LF_TU_ETHER, + NPC_F_LF_L_WITH_CTAG, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 0, 0, + NPC_S_KPU12_TU_ARP, 18, 1, + NPC_LID_LF, NPC_LT_LF_TU_ETHER, + NPC_F_LF_L_WITH_CTAG, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 0, 1, + NPC_S_NA, 0, 1, + NPC_LID_LF, NPC_LT_LF_TU_ETHER, + NPC_F_LF_U_UNK_ETYPE | NPC_F_LF_L_WITH_CTAG, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 8, 0, 6, 0, 0, + NPC_S_KPU12_TU_IP, 22, 1, + NPC_LID_LF, NPC_LT_LF_TU_ETHER, + NPC_F_LF_L_WITH_QINQ_CTAG, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 6, 0, 0, 0, 0, + NPC_S_KPU12_TU_IP6, 22, 1, + NPC_LID_LF, NPC_LT_LF_TU_ETHER, + NPC_F_LF_L_WITH_QINQ_CTAG, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 0, 0, + NPC_S_KPU12_TU_ARP, 22, 1, + NPC_LID_LF, NPC_LT_LF_TU_ETHER, + NPC_F_LF_L_WITH_QINQ_CTAG, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 0, 1, + NPC_S_NA, 0, 1, + NPC_LID_LF, NPC_LT_LF_TU_ETHER, + NPC_F_LF_U_UNK_ETYPE | NPC_F_LF_L_WITH_QINQ_CTAG, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 8, 0, 6, 0, 0, + NPC_S_KPU12_TU_IP, 18, 1, + NPC_LID_LF, NPC_LT_LF_TU_ETHER, + NPC_F_LF_L_WITH_QINQ, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 6, 0, 0, 0, 0, + NPC_S_KPU12_TU_IP6, 18, 1, + NPC_LID_LF, NPC_LT_LF_TU_ETHER, + NPC_F_LF_L_WITH_QINQ, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 0, 0, + NPC_S_KPU12_TU_ARP, 18, 1, + NPC_LID_LF, NPC_LT_LF_TU_ETHER, + NPC_F_LF_L_WITH_QINQ, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 0, 1, + NPC_S_NA, 0, 1, + NPC_LID_LF, NPC_LT_LF_TU_ETHER, + NPC_F_LF_U_UNK_ETYPE | NPC_F_LF_L_WITH_QINQ, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 0, 1, + NPC_S_NA, 0, 1, + NPC_LID_LF, NPC_LT_LF_TU_ETHER, + NPC_F_LF_U_UNK_ETYPE, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 0, 1, + NPC_S_NA, 0, 1, + NPC_LID_LF, NPC_LT_LF_TU_PPP, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 8, 0, 6, 0, 0, + NPC_S_KPU12_TU_IP, 4, 0, + NPC_LID_LF, NPC_LT_NA, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 6, 0, 0, 0, 0, + NPC_S_KPU12_TU_IP6, 4, 0, + NPC_LID_LF, NPC_LT_NA, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_LF, NPC_EC_MPLS_UNK, + 0, 0, 0, 0, 1, + NPC_S_NA, 0, 0, + NPC_LID_LF, NPC_LT_NA, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_LF, NPC_EC_MPLS_2MANY, + 0, 0, 0, 0, 1, + NPC_S_NA, 0, 0, + NPC_LID_LF, NPC_LT_NA, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 8, 0, 6, 0, 0, + NPC_S_KPU12_TU_IP, 0, 0, + NPC_LID_LF, NPC_LT_NA, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 6, 0, 0, 0, 0, + NPC_S_KPU12_TU_IP6, 0, 0, + NPC_LID_LF, NPC_LT_NA, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_LF, NPC_EC_MPLS_UNK, + 0, 0, 0, 0, 1, + NPC_S_NA, 0, 0, + NPC_LID_LF, NPC_LT_NA, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 0, 1, + NPC_S_NA, 0, 1, + NPC_LID_LG, NPC_LT_LG_TU_ETHER_IN_NSH, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_LF, NPC_EC_UNK, + 0, 0, 0, 0, 1, + NPC_S_NA, 0, 0, + NPC_LID_LF, NPC_LT_NA, + 0, + 0, 0, 0, 0, + }, +}; + +static struct npc_kpu_profile_action kpu12_action_entries[] = { + NPC_KPU_NOP_ACTION, + NPC_KPU_NOP_ACTION, + NPC_KPU_NOP_ACTION, + NPC_KPU_NOP_ACTION, + NPC_KPU_NOP_ACTION, + NPC_KPU_NOP_ACTION, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 2, 12, 0, 2, 0, + NPC_S_KPU15_TU_TCP, 20, 1, + NPC_LID_LG, NPC_LT_LG_TU_IP, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 2, 0, 0, 2, 0, + NPC_S_KPU15_TU_UDP, 20, 1, + NPC_LID_LG, NPC_LT_LG_TU_IP, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 2, 0, + NPC_S_KPU15_TU_SCTP, 20, 1, + NPC_LID_LG, NPC_LT_LG_TU_IP, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 2, 0, + NPC_S_KPU15_TU_ICMP, 20, 1, + NPC_LID_LG, NPC_LT_LG_TU_IP, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 2, 0, + NPC_S_KPU15_TU_IGMP, 20, 1, + NPC_LID_LG, NPC_LT_LG_TU_IP, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 2, 0, + NPC_S_KPU15_TU_ESP, 20, 1, + NPC_LID_LG, NPC_LT_LG_TU_IP, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 2, 0, + NPC_S_KPU15_TU_AH, 20, 1, + NPC_LID_LG, NPC_LT_LG_TU_IP, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 0, 1, + NPC_S_NA, 0, 1, + NPC_LID_LG, NPC_LT_LG_TU_IP, + NPC_F_LG_U_UNK_IP_PROTO, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 2, 12, 0, 2, 0, + NPC_S_KPU15_TU_TCP, 0, 1, + NPC_LID_LG, NPC_LT_LG_TU_IP, + NPC_F_LG_U_IP_HAS_OPTIONS, + 0, 0xf, 0, 2, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 2, 0, 0, 2, 0, + NPC_S_KPU15_TU_UDP, 0, 1, + NPC_LID_LG, NPC_LT_LG_TU_IP, + NPC_F_LG_U_IP_HAS_OPTIONS, + 0, 0xf, 0, 2, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 2, 0, + NPC_S_KPU15_TU_SCTP, 0, 1, + NPC_LID_LG, NPC_LT_LG_TU_IP, + NPC_F_LG_U_IP_HAS_OPTIONS, + 0, 0xf, 0, 2, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 2, 0, + NPC_S_KPU15_TU_ICMP, 0, 1, + NPC_LID_LG, NPC_LT_LG_TU_IP, + NPC_F_LG_U_IP_HAS_OPTIONS, + 0, 0xf, 0, 2, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 2, 0, + NPC_S_KPU15_TU_IGMP, 0, 1, + NPC_LID_LG, NPC_LT_LG_TU_IP, + NPC_F_LG_U_IP_HAS_OPTIONS, + 0, 0xf, 0, 2, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 2, 0, + NPC_S_KPU15_TU_ESP, 0, 1, + NPC_LID_LG, NPC_LT_LG_TU_IP, + NPC_F_LG_U_IP_HAS_OPTIONS, + 0, 0xf, 0, 2, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 2, 0, + NPC_S_KPU15_TU_AH, 0, 1, + NPC_LID_LG, NPC_LT_LG_TU_IP, + NPC_F_LG_U_IP_HAS_OPTIONS, + 0, 0xf, 0, 2, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 0, 1, + NPC_S_NA, 0, 1, + NPC_LID_LG, NPC_LT_LG_TU_IP, + NPC_F_LG_U_IP_HAS_OPTIONS | NPC_F_LG_U_UNK_IP_PROTO, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_LF, NPC_EC_IP_VER, + 0, 0, 0, 0, 1, + NPC_S_NA, 0, 1, + NPC_LID_LG, NPC_LT_LG_TU_IP, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 0, 1, + NPC_S_NA, 0, 1, + NPC_LID_LG, NPC_LT_LG_TU_ARP, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 2, 12, 0, 2, 0, + NPC_S_KPU15_TU_TCP, 40, 1, + NPC_LID_LG, NPC_LT_LG_TU_IP6, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 2, 0, 0, 2, 0, + NPC_S_KPU15_TU_UDP, 40, 1, + NPC_LID_LG, NPC_LT_LG_TU_IP6, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 2, 0, + NPC_S_KPU15_TU_SCTP, 40, 1, + NPC_LID_LG, NPC_LT_LG_TU_IP6, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 2, 0, + NPC_S_KPU15_TU_ICMP, 40, 1, + NPC_LID_LG, NPC_LT_LG_TU_IP6, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 2, 0, + NPC_S_KPU15_TU_ICMP6, 40, 1, + NPC_LID_LG, NPC_LT_LG_TU_IP6, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 2, 0, + NPC_S_KPU15_TU_ESP, 40, 1, + NPC_LID_LG, NPC_LT_LG_TU_IP6, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 2, 0, + NPC_S_KPU15_TU_AH, 40, 1, + NPC_LID_LG, NPC_LT_LG_TU_IP6, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 2, 0, 0, 0, 0, + NPC_S_KPU13_TU_IP6_EXT, 0, 1, + NPC_LID_LG, NPC_LT_LG_TU_IP6, + NPC_F_LG_U_IP6_HAS_EXT, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_LF, NPC_EC_IP6_VER, + 0, 0, 0, 0, 1, + NPC_S_NA, 0, 1, + NPC_LID_LG, NPC_LT_LG_TU_IP6, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_LF, NPC_EC_UNK, + 0, 0, 0, 0, 1, + NPC_S_NA, 0, 0, + NPC_LID_LG, NPC_LT_NA, + 0, + 0, 0, 0, 0, + }, +}; + +static struct npc_kpu_profile_action kpu13_action_entries[] = { + NPC_KPU_NOP_ACTION, + NPC_KPU_NOP_ACTION, + NPC_KPU_NOP_ACTION, + NPC_KPU_NOP_ACTION, + NPC_KPU_NOP_ACTION, + NPC_KPU_NOP_ACTION, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 0, 1, + NPC_S_NA, 0, 0, + NPC_LID_LC, NPC_LT_NA, + 0, + 0, 0, 0, 0, + }, +}; + +static struct npc_kpu_profile_action kpu14_action_entries[] = { + NPC_KPU_NOP_ACTION, + NPC_KPU_NOP_ACTION, + NPC_KPU_NOP_ACTION, + NPC_KPU_NOP_ACTION, + NPC_KPU_NOP_ACTION, + NPC_KPU_NOP_ACTION, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 0, 1, + NPC_S_NA, 0, 0, + NPC_LID_LC, NPC_LT_NA, + 0, + 0, 0, 0, 0, + }, +}; + +static struct npc_kpu_profile_action kpu15_action_entries[] = { + NPC_KPU_NOP_ACTION, + NPC_KPU_NOP_ACTION, + NPC_KPU_NOP_ACTION, + NPC_KPU_NOP_ACTION, + NPC_KPU_NOP_ACTION, + NPC_KPU_NOP_ACTION, + { + NPC_ERRLEV_LG, NPC_EC_TCP_FLAGS_FIN_ONLY, + 0, 0, 0, 0, 1, + NPC_S_NA, 0, 1, + NPC_LID_LH, NPC_LT_LH_TU_TCP, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_LG, NPC_EC_TCP_FLAGS_ZERO, + 0, 0, 0, 0, 1, + NPC_S_NA, 0, 1, + NPC_LID_LH, NPC_LT_LH_TU_TCP, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_LG, NPC_EC_TCP_FLAGS_RST_FIN, + 0, 0, 0, 0, 1, + NPC_S_NA, 0, 1, + NPC_LID_LH, NPC_LT_LH_TU_TCP, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_LG, NPC_EC_TCP_FLAGS_URG_SYN, + 0, 0, 0, 0, 1, + NPC_S_NA, 0, 1, + NPC_LID_LH, NPC_LT_LH_TU_TCP, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_LG, NPC_EC_TCP_FLAGS_RST_SYN, + 0, 0, 0, 0, 1, + NPC_S_NA, 0, 1, + NPC_LID_LH, NPC_LT_LH_TU_TCP, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_LG, NPC_EC_TCP_FLAGS_SYN_FIN, + 0, 0, 0, 0, 1, + NPC_S_NA, 0, 1, + NPC_LID_LH, NPC_LT_LH_TU_TCP, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 0, 0, + NPC_S_KPU16_HTTP_DATA, 20, 1, + NPC_LID_LH, NPC_LT_LH_TU_TCP, + NPC_F_LH_L_TCP_HTTP, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 0, 0, + NPC_S_KPU16_HTTPS_DATA, 20, 1, + NPC_LID_LH, NPC_LT_LH_TU_TCP, + NPC_F_LH_L_TCP_HTTP, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 0, 0, + NPC_S_KPU16_PPTP_DATA, 20, 1, + NPC_LID_LH, NPC_LT_LH_TU_TCP, + NPC_F_LH_L_TCP_PPTP, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 0, 0, + NPC_S_KPU16_TCP_DATA, 20, 1, + NPC_LID_LH, NPC_LT_LH_TU_TCP, + NPC_F_LH_L_TCP_UNK_PORT, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 0, 0, + NPC_S_KPU16_HTTP_DATA, 0, 1, + NPC_LID_LH, NPC_LT_LH_TU_TCP, + NPC_F_LH_U_TCP_HAS_OPTIONS | NPC_F_LH_L_TCP_HTTP, + 12, 0xf0, 1, 2, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 0, 0, + NPC_S_KPU16_HTTPS_DATA, 0, 1, + NPC_LID_LH, NPC_LT_LH_TU_TCP, + NPC_F_LH_U_TCP_HAS_OPTIONS | NPC_F_LH_L_TCP_HTTPS, + 12, 0xf0, 1, 2, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 0, 0, + NPC_S_KPU16_PPTP_DATA, 0, 1, + NPC_LID_LH, NPC_LT_LH_TU_TCP, + NPC_F_LH_U_TCP_HAS_OPTIONS | NPC_F_LH_L_TCP_PPTP, + 12, 0xf0, 1, 2, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 0, 0, + NPC_S_KPU16_TCP_DATA, 0, 1, + NPC_LID_LH, NPC_LT_LH_TU_TCP, + NPC_F_LH_U_TCP_HAS_OPTIONS | NPC_F_LH_L_TCP_UNK_PORT, + 12, 0xf0, 1, 2, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 0, 0, + NPC_S_KPU16_UDP_DATA, 8, 1, + NPC_LID_LH, NPC_LT_LH_TU_UDP, + NPC_F_LH_L_UDP_UNK_PORT, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 0, 1, + NPC_S_NA, 0, 1, + NPC_LID_LH, NPC_LT_LH_TU_SCTP, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 0, 1, + NPC_S_NA, 0, 1, + NPC_LID_LH, NPC_LT_LH_TU_ICMP, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 0, 1, + NPC_S_NA, 0, 1, + NPC_LID_LH, NPC_LT_LH_TU_IGMP, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 0, 1, + NPC_S_NA, 0, 1, + NPC_LID_LH, NPC_LT_LH_TU_ICMP6, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 0, 1, + NPC_S_NA, 0, 1, + NPC_LID_LH, NPC_LT_LH_TU_ESP, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 0, 1, + NPC_S_NA, 0, 1, + NPC_LID_LH, NPC_LT_LH_TU_AH, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_LG, NPC_EC_L4, + 0, 0, 0, 0, 1, + NPC_S_NA, 0, 0, + NPC_LID_LH, NPC_LT_NA, + 0, + 0, 0, 0, 0, + }, +}; + +static struct npc_kpu_profile_action kpu16_action_entries[] = { + NPC_KPU_NOP_ACTION, + NPC_KPU_NOP_ACTION, + NPC_KPU_NOP_ACTION, + NPC_KPU_NOP_ACTION, + NPC_KPU_NOP_ACTION, + NPC_KPU_NOP_ACTION, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 0, 1, + NPC_S_NA, 0, 0, + NPC_LID_LH, NPC_LT_NA, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 0, 1, + NPC_S_NA, 0, 0, + NPC_LID_LH, NPC_LT_NA, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 0, 1, + NPC_S_NA, 0, 0, + NPC_LID_LH, NPC_LT_NA, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 0, 1, + NPC_S_NA, 0, 0, + NPC_LID_LH, NPC_LT_NA, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 0, 1, + NPC_S_NA, 0, 0, + NPC_LID_LH, NPC_LT_NA, + 0, + 0, 0, 0, 0, + }, + { + NPC_ERRLEV_RE, NPC_EC_NOERR, + 0, 0, 0, 0, 1, + NPC_S_NA, 0, 0, + NPC_LID_LH, NPC_LT_NA, + 0, + 0, 0, 0, 0, + }, +}; + +static struct npc_kpu_profile npc_kpu_profiles[] = { + { + ARRAY_SIZE(kpu1_cam_entries), + ARRAY_SIZE(kpu1_action_entries), + &kpu1_cam_entries[0], + &kpu1_action_entries[0], + }, + { + ARRAY_SIZE(kpu2_cam_entries), + ARRAY_SIZE(kpu2_action_entries), + &kpu2_cam_entries[0], + &kpu2_action_entries[0], + }, + { + ARRAY_SIZE(kpu3_cam_entries), + ARRAY_SIZE(kpu3_action_entries), + &kpu3_cam_entries[0], + &kpu3_action_entries[0], + }, + { + ARRAY_SIZE(kpu4_cam_entries), + ARRAY_SIZE(kpu4_action_entries), + &kpu4_cam_entries[0], + &kpu4_action_entries[0], + }, + { + ARRAY_SIZE(kpu5_cam_entries), + ARRAY_SIZE(kpu5_action_entries), + &kpu5_cam_entries[0], + &kpu5_action_entries[0], + }, + { + ARRAY_SIZE(kpu6_cam_entries), + ARRAY_SIZE(kpu6_action_entries), + &kpu6_cam_entries[0], + &kpu6_action_entries[0], + }, + { + ARRAY_SIZE(kpu7_cam_entries), + ARRAY_SIZE(kpu7_action_entries), + &kpu7_cam_entries[0], + &kpu7_action_entries[0], + }, + { + ARRAY_SIZE(kpu8_cam_entries), + ARRAY_SIZE(kpu8_action_entries), + &kpu8_cam_entries[0], + &kpu8_action_entries[0], + }, + { + ARRAY_SIZE(kpu9_cam_entries), + ARRAY_SIZE(kpu9_action_entries), + &kpu9_cam_entries[0], + &kpu9_action_entries[0], + }, + { + ARRAY_SIZE(kpu10_cam_entries), + ARRAY_SIZE(kpu10_action_entries), + &kpu10_cam_entries[0], + &kpu10_action_entries[0], + }, + { + ARRAY_SIZE(kpu11_cam_entries), + ARRAY_SIZE(kpu11_action_entries), + &kpu11_cam_entries[0], + &kpu11_action_entries[0], + }, + { + ARRAY_SIZE(kpu12_cam_entries), + ARRAY_SIZE(kpu12_action_entries), + &kpu12_cam_entries[0], + &kpu12_action_entries[0], + }, + { + ARRAY_SIZE(kpu13_cam_entries), + ARRAY_SIZE(kpu13_action_entries), + &kpu13_cam_entries[0], + &kpu13_action_entries[0], + }, + { + ARRAY_SIZE(kpu14_cam_entries), + ARRAY_SIZE(kpu14_action_entries), + &kpu14_cam_entries[0], + &kpu14_action_entries[0], + }, + { + ARRAY_SIZE(kpu15_cam_entries), + ARRAY_SIZE(kpu15_action_entries), + &kpu15_cam_entries[0], + &kpu15_action_entries[0], + }, + { + ARRAY_SIZE(kpu16_cam_entries), + ARRAY_SIZE(kpu16_action_entries), + &kpu16_cam_entries[0], + &kpu16_action_entries[0], + }, +}; + +static struct npc_lt_def_cfg npc_lt_defaults = { + .rx_ol2 = { + .lid = NPC_LID_LA, + .ltype_match = NPC_LT_LA_ETHER, + .ltype_mask = 0x0F, + }, + .ovlan = { + .lid = NPC_LID_LB, + .ltype_match = NPC_LT_LB_CTAG, + .ltype_mask = 0x0F, + }, + .ivlan = { + .lid = NPC_LID_LB, + .ltype_match = NPC_LT_LB_STAG_QINQ, + .ltype_mask = 0x0F, + }, + .rx_oip4 = { + .lid = NPC_LID_LC, + .ltype_match = NPC_LT_LC_IP, + .ltype_mask = 0x0E, + }, + .rx_iip4 = { + .lid = NPC_LID_LG, + .ltype_match = NPC_LT_LG_TU_IP, + .ltype_mask = 0x0F, + }, + .rx_oip6 = { + .lid = NPC_LID_LC, + .ltype_match = NPC_LT_LC_IP6, + .ltype_mask = 0x0E, + }, + .rx_iip6 = { + .lid = NPC_LID_LG, + .ltype_match = NPC_LT_LG_TU_IP6, + .ltype_mask = 0x0F, + }, + .rx_otcp = { + .lid = NPC_LID_LD, + .ltype_match = NPC_LT_LD_TCP, + .ltype_mask = 0x0F, + }, + .rx_itcp = { + .lid = NPC_LID_LH, + .ltype_match = NPC_LT_LH_TU_TCP, + .ltype_mask = 0x0F, + }, + .rx_oudp = { + .lid = NPC_LID_LD, + .ltype_match = NPC_LT_LD_UDP, + .ltype_mask = 0x0F, + }, + .rx_iudp = { + .lid = NPC_LID_LH, + .ltype_match = NPC_LT_LH_TU_UDP, + .ltype_mask = 0x0F, + }, + .rx_osctp = { + .lid = NPC_LID_LD, + .ltype_match = NPC_LT_LD_SCTP, + .ltype_mask = 0x0F, + }, + .rx_isctp = { + .lid = NPC_LID_LH, + .ltype_match = NPC_LT_LH_TU_SCTP, + .ltype_mask = 0x0F, + }, + .rx_ipsec = { + { + .lid = NPC_LID_LE, + .ltype_match = NPC_LT_LE_ESP, + .ltype_mask = 0x0F, + }, + { + .spi_offset = 8, + .lid = NPC_LID_LH, + .ltype_match = NPC_LT_LH_TU_ESP, + .ltype_mask = 0x0F, + }, + }, + .pck_ol2 = { + .lid = NPC_LID_LA, + .ltype_match = NPC_LT_LA_ETHER, + .ltype_mask = 0x0F, + }, + .pck_oip4 = { + .lid = NPC_LID_LC, + .ltype_match = NPC_LT_LC_IP, + .ltype_mask = 0x0E, + }, + .pck_iip4 = { + .lid = NPC_LID_LG, + .ltype_match = NPC_LT_LG_TU_IP, + .ltype_mask = 0x0F, + }, + .rx_apad0 = { + .valid = 0, + .lid = NPC_LID_LC, + .ltype_match = NPC_LT_LC_IP6, + .ltype_mask = 0x0F, + }, + .rx_apad1 = { + .valid = 0, + .lid = NPC_LID_LC, + .ltype_match = NPC_LT_LC_IP6, + .ltype_mask = 0x0F, + }, + .rx_et = { + { + .lid = NPC_LID_LB, + .ltype_match = NPC_LT_NA, + .ltype_mask = 0x0, + }, + { + .lid = NPC_LID_LB, + .ltype_match = NPC_LT_NA, + .ltype_mask = 0x0, + }, + }, +}; + +static struct npc_mcam_kex npc_mkex_default = { + .mkex_sign = MKEX_SIGN, + .name = "default", + .kpu_version = NPC_KPU_PROFILE_VER, + .keyx_cfg = { + /* nibble: LA..LE (ltype only) + Error code + Channel */ + [NIX_INTF_RX] = ((u64)NPC_MCAM_KEY_X2 << 32) | NPC_PARSE_NIBBLE_INTF_RX | + (u64)NPC_EXACT_NIBBLE_HIT, + /* nibble: LA..LE (ltype only) */ + [NIX_INTF_TX] = ((u64)NPC_MCAM_KEY_X2 << 32) | NPC_PARSE_NIBBLE_INTF_TX, + }, + .intf_lid_lt_ld = { + /* Default RX MCAM KEX profile */ + [NIX_INTF_RX] = { + [NPC_LID_LA] = { + /* Layer A: Ethernet: */ + [NPC_LT_LA_ETHER] = { + /* DMAC: 6 bytes, KW1[55:8] */ + KEX_LD_CFG(0x05, 0x0, 0x1, 0x0, NPC_KEXOF_DMAC), + /* Ethertype: 2 bytes, KW0[55:40] */ + KEX_LD_CFG(0x01, 0xc, 0x1, 0x0, 0x5), + }, + /* Layer A: HiGig2: */ + [NPC_LT_LA_HIGIG2_ETHER] = { + /* Classification: 2 bytes, KW1[23:8] */ + KEX_LD_CFG(0x01, 0x8, 0x1, 0x0, NPC_KEXOF_DMAC), + /* VID: 2 bytes, KW1[39:24] */ + KEX_LD_CFG(0x01, 0xc, 0x1, 0x0, + NPC_KEXOF_DMAC + 2), + }, + }, + [NPC_LID_LB] = { + /* Layer B: Single VLAN (CTAG) */ + [NPC_LT_LB_CTAG] = { + /* CTAG VLAN: 2 bytes, KW1[7:0], KW0[63:56] */ + KEX_LD_CFG(0x01, 0x2, 0x1, 0x0, 0x7), + /* Ethertype: 2 bytes, KW0[55:40] */ + KEX_LD_CFG(0x01, 0x4, 0x1, 0x0, 0x5), + }, + /* Layer B: Stacked VLAN (STAG|QinQ) */ + [NPC_LT_LB_STAG_QINQ] = { + /* Outer VLAN: 2 bytes, KW1[7:0], KW0[63:56] */ + KEX_LD_CFG(0x01, 0x2, 0x1, 0x0, 0x7), + /* Ethertype: 2 bytes, KW0[55:40] */ + KEX_LD_CFG(0x01, 0x8, 0x1, 0x0, 0x5), + }, + [NPC_LT_LB_FDSA] = { + /* SWITCH PORT: 1 byte, KW0[63:56] */ + KEX_LD_CFG(0x0, 0x1, 0x1, 0x0, 0x7), + /* Ethertype: 2 bytes, KW0[55:40] */ + KEX_LD_CFG(0x01, 0x4, 0x1, 0x0, 0x5), + }, + }, + [NPC_LID_LC] = { + /* Layer C: IPv4 */ + [NPC_LT_LC_IP] = { + /* SIP+DIP: 8 bytes, KW2[63:0] */ + KEX_LD_CFG(0x07, 0xc, 0x1, 0x0, 0x10), + /* TOS: 1 byte, KW1[63:56] */ + KEX_LD_CFG(0x0, 0x1, 0x1, 0x0, 0xf), + }, + /* Layer C: IPv6 */ + [NPC_LT_LC_IP6] = { + /* Everything up to SADDR: 8 bytes, KW2[63:0] */ + KEX_LD_CFG(0x07, 0x0, 0x1, 0x0, 0x10), + }, + }, + [NPC_LID_LD] = { + /* Layer D:UDP */ + [NPC_LT_LD_UDP] = { + /* SPORT+DPORT: 4 bytes, KW3[31:0] */ + KEX_LD_CFG(0x3, 0x0, 0x1, 0x0, 0x18), + }, + /* Layer D:TCP */ + [NPC_LT_LD_TCP] = { + /* SPORT+DPORT: 4 bytes, KW3[31:0] */ + KEX_LD_CFG(0x3, 0x0, 0x1, 0x0, 0x18), + }, + }, + }, + + /* Default TX MCAM KEX profile */ + [NIX_INTF_TX] = { + [NPC_LID_LA] = { + /* Layer A: NIX_INST_HDR_S + Ethernet */ + /* NIX appends 8 bytes of NIX_INST_HDR_S at the + * start of each TX packet supplied to NPC. + */ + [NPC_LT_LA_IH_NIX_ETHER] = { + /* PF_FUNC: 2B , KW0 [47:32] */ + KEX_LD_CFG(0x01, 0x0, 0x1, 0x0, 0x4), + /* DMAC: 6 bytes, KW1[63:16] */ + KEX_LD_CFG(0x05, 0x8, 0x1, 0x0, 0xa), + }, + /* Layer A: HiGig2: */ + [NPC_LT_LA_IH_NIX_HIGIG2_ETHER] = { + /* PF_FUNC: 2B , KW0 [47:32] */ + KEX_LD_CFG(0x01, 0x0, 0x1, 0x0, 0x4), + /* VID: 2 bytes, KW1[31:16] */ + KEX_LD_CFG(0x01, 0x10, 0x1, 0x0, 0xa), + }, + }, + [NPC_LID_LB] = { + /* Layer B: Single VLAN (CTAG) */ + [NPC_LT_LB_CTAG] = { + /* CTAG VLAN[2..3] KW0[63:48] */ + KEX_LD_CFG(0x01, 0x2, 0x1, 0x0, 0x6), + /* CTAG VLAN[2..3] KW1[15:0] */ + KEX_LD_CFG(0x01, 0x4, 0x1, 0x0, 0x8), + }, + /* Layer B: Stacked VLAN (STAG|QinQ) */ + [NPC_LT_LB_STAG_QINQ] = { + /* Outer VLAN: 2 bytes, KW0[63:48] */ + KEX_LD_CFG(0x01, 0x2, 0x1, 0x0, 0x6), + /* Outer VLAN: 2 Bytes, KW1[15:0] */ + KEX_LD_CFG(0x01, 0x8, 0x1, 0x0, 0x8), + }, + }, + [NPC_LID_LC] = { + /* Layer C: IPv4 */ + [NPC_LT_LC_IP] = { + /* SIP+DIP: 8 bytes, KW2[63:0] */ + KEX_LD_CFG(0x07, 0xc, 0x1, 0x0, 0x10), + }, + /* Layer C: IPv6 */ + [NPC_LT_LC_IP6] = { + /* Everything up to SADDR: 8 bytes, KW2[63:0] */ + KEX_LD_CFG(0x07, 0x0, 0x1, 0x0, 0x10), + }, + }, + [NPC_LID_LD] = { + /* Layer D:UDP */ + [NPC_LT_LD_UDP] = { + /* SPORT+DPORT: 4 bytes, KW3[31:0] */ + KEX_LD_CFG(0x3, 0x0, 0x1, 0x0, 0x18), + }, + /* Layer D:TCP */ + [NPC_LT_LD_TCP] = { + /* SPORT+DPORT: 4 bytes, KW3[31:0] */ + KEX_LD_CFG(0x3, 0x0, 0x1, 0x0, 0x18), + }, + }, + }, + }, +}; + +#endif /* NPC_PROFILE_H */ diff --git a/drivers/net/ethernet/marvell/octeontx2/af/ptp.c b/drivers/net/ethernet/marvell/octeontx2/af/ptp.c new file mode 100644 index 000000000..0ee420a48 --- /dev/null +++ b/drivers/net/ethernet/marvell/octeontx2/af/ptp.c @@ -0,0 +1,530 @@ +// SPDX-License-Identifier: GPL-2.0 +/* Marvell PTP driver + * + * Copyright (C) 2020 Marvell. + * + */ + +#include <linux/bitfield.h> +#include <linux/device.h> +#include <linux/module.h> +#include <linux/pci.h> +#include <linux/hrtimer.h> +#include <linux/ktime.h> + +#include "ptp.h" +#include "mbox.h" +#include "rvu.h" + +#define DRV_NAME "Marvell PTP Driver" + +#define PCI_DEVID_OCTEONTX2_PTP 0xA00C +#define PCI_SUBSYS_DEVID_OCTX2_98xx_PTP 0xB100 +#define PCI_SUBSYS_DEVID_OCTX2_96XX_PTP 0xB200 +#define PCI_SUBSYS_DEVID_OCTX2_95XX_PTP 0xB300 +#define PCI_SUBSYS_DEVID_OCTX2_95XXN_PTP 0xB400 +#define PCI_SUBSYS_DEVID_OCTX2_95MM_PTP 0xB500 +#define PCI_SUBSYS_DEVID_OCTX2_95XXO_PTP 0xB600 +#define PCI_DEVID_OCTEONTX2_RST 0xA085 +#define PCI_DEVID_CN10K_PTP 0xA09E +#define PCI_SUBSYS_DEVID_CN10K_A_PTP 0xB900 +#define PCI_SUBSYS_DEVID_CNF10K_A_PTP 0xBA00 +#define PCI_SUBSYS_DEVID_CNF10K_B_PTP 0xBC00 + +#define PCI_PTP_BAR_NO 0 + +#define PTP_CLOCK_CFG 0xF00ULL +#define PTP_CLOCK_CFG_PTP_EN BIT_ULL(0) +#define PTP_CLOCK_CFG_EXT_CLK_EN BIT_ULL(1) +#define PTP_CLOCK_CFG_EXT_CLK_IN_MASK GENMASK_ULL(7, 2) +#define PTP_CLOCK_CFG_TSTMP_EDGE BIT_ULL(9) +#define PTP_CLOCK_CFG_TSTMP_EN BIT_ULL(8) +#define PTP_CLOCK_CFG_TSTMP_IN_MASK GENMASK_ULL(15, 10) +#define PTP_CLOCK_CFG_PPS_EN BIT_ULL(30) +#define PTP_CLOCK_CFG_PPS_INV BIT_ULL(31) + +#define PTP_PPS_HI_INCR 0xF60ULL +#define PTP_PPS_LO_INCR 0xF68ULL +#define PTP_PPS_THRESH_HI 0xF58ULL + +#define PTP_CLOCK_LO 0xF08ULL +#define PTP_CLOCK_HI 0xF10ULL +#define PTP_CLOCK_COMP 0xF18ULL +#define PTP_TIMESTAMP 0xF20ULL +#define PTP_CLOCK_SEC 0xFD0ULL +#define PTP_SEC_ROLLOVER 0xFD8ULL + +#define CYCLE_MULT 1000 + +static struct ptp *first_ptp_block; +static const struct pci_device_id ptp_id_table[]; + +static bool is_ptp_dev_cnf10kb(struct ptp *ptp) +{ + return (ptp->pdev->subsystem_device == PCI_SUBSYS_DEVID_CNF10K_B_PTP) ? true : false; +} + +static bool is_ptp_dev_cn10k(struct ptp *ptp) +{ + return (ptp->pdev->device == PCI_DEVID_CN10K_PTP) ? true : false; +} + +static bool cn10k_ptp_errata(struct ptp *ptp) +{ + if (ptp->pdev->subsystem_device == PCI_SUBSYS_DEVID_CN10K_A_PTP || + ptp->pdev->subsystem_device == PCI_SUBSYS_DEVID_CNF10K_A_PTP) + return true; + return false; +} + +static bool is_ptp_tsfmt_sec_nsec(struct ptp *ptp) +{ + if (ptp->pdev->subsystem_device == PCI_SUBSYS_DEVID_CN10K_A_PTP || + ptp->pdev->subsystem_device == PCI_SUBSYS_DEVID_CNF10K_A_PTP) + return true; + return false; +} + +static enum hrtimer_restart ptp_reset_thresh(struct hrtimer *hrtimer) +{ + struct ptp *ptp = container_of(hrtimer, struct ptp, hrtimer); + ktime_t curr_ts = ktime_get(); + ktime_t delta_ns, period_ns; + u64 ptp_clock_hi; + + /* calculate the elapsed time since last restart */ + delta_ns = ktime_to_ns(ktime_sub(curr_ts, ptp->last_ts)); + + /* if the ptp clock value has crossed 0.5 seconds, + * its too late to update pps threshold value, so + * update threshold after 1 second. + */ + ptp_clock_hi = readq(ptp->reg_base + PTP_CLOCK_HI); + if (ptp_clock_hi > 500000000) { + period_ns = ktime_set(0, (NSEC_PER_SEC + 100 - ptp_clock_hi)); + } else { + writeq(500000000, ptp->reg_base + PTP_PPS_THRESH_HI); + period_ns = ktime_set(0, (NSEC_PER_SEC + 100 - delta_ns)); + } + + hrtimer_forward_now(hrtimer, period_ns); + ptp->last_ts = curr_ts; + + return HRTIMER_RESTART; +} + +static void ptp_hrtimer_start(struct ptp *ptp, ktime_t start_ns) +{ + ktime_t period_ns; + + period_ns = ktime_set(0, (NSEC_PER_SEC + 100 - start_ns)); + hrtimer_start(&ptp->hrtimer, period_ns, HRTIMER_MODE_REL); + ptp->last_ts = ktime_get(); +} + +static u64 read_ptp_tstmp_sec_nsec(struct ptp *ptp) +{ + u64 sec, sec1, nsec; + unsigned long flags; + + spin_lock_irqsave(&ptp->ptp_lock, flags); + sec = readq(ptp->reg_base + PTP_CLOCK_SEC) & 0xFFFFFFFFUL; + nsec = readq(ptp->reg_base + PTP_CLOCK_HI); + sec1 = readq(ptp->reg_base + PTP_CLOCK_SEC) & 0xFFFFFFFFUL; + /* check nsec rollover */ + if (sec1 > sec) { + nsec = readq(ptp->reg_base + PTP_CLOCK_HI); + sec = sec1; + } + spin_unlock_irqrestore(&ptp->ptp_lock, flags); + + return sec * NSEC_PER_SEC + nsec; +} + +static u64 read_ptp_tstmp_nsec(struct ptp *ptp) +{ + return readq(ptp->reg_base + PTP_CLOCK_HI); +} + +static u64 ptp_calc_adjusted_comp(u64 ptp_clock_freq) +{ + u64 comp, adj = 0, cycles_per_sec, ns_drift = 0; + u32 ptp_clock_nsec, cycle_time; + int cycle; + + /* Errata: + * Issue #1: At the time of 1 sec rollover of the nano-second counter, + * the nano-second counter is set to 0. However, it should be set to + * (existing counter_value - 10^9). + * + * Issue #2: The nano-second counter rolls over at 0x3B9A_C9FF. + * It should roll over at 0x3B9A_CA00. + */ + + /* calculate ptp_clock_comp value */ + comp = ((u64)1000000000ULL << 32) / ptp_clock_freq; + /* use CYCLE_MULT to avoid accuracy loss due to integer arithmetic */ + cycle_time = NSEC_PER_SEC * CYCLE_MULT / ptp_clock_freq; + /* cycles per sec */ + cycles_per_sec = ptp_clock_freq; + + /* check whether ptp nanosecond counter rolls over early */ + cycle = cycles_per_sec - 1; + ptp_clock_nsec = (cycle * comp) >> 32; + while (ptp_clock_nsec < NSEC_PER_SEC) { + if (ptp_clock_nsec == 0x3B9AC9FF) + goto calc_adj_comp; + cycle++; + ptp_clock_nsec = (cycle * comp) >> 32; + } + /* compute nanoseconds lost per second when nsec counter rolls over */ + ns_drift = ptp_clock_nsec - NSEC_PER_SEC; + /* calculate ptp_clock_comp adjustment */ + if (ns_drift > 0) { + adj = comp * ns_drift; + adj = adj / 1000000000ULL; + } + /* speed up the ptp clock to account for nanoseconds lost */ + comp += adj; + return comp; + +calc_adj_comp: + /* slow down the ptp clock to not rollover early */ + adj = comp * cycle_time; + adj = adj / 1000000000ULL; + adj = adj / CYCLE_MULT; + comp -= adj; + + return comp; +} + +struct ptp *ptp_get(void) +{ + struct ptp *ptp = first_ptp_block; + + /* Check PTP block is present in hardware */ + if (!pci_dev_present(ptp_id_table)) + return ERR_PTR(-ENODEV); + /* Check driver is bound to PTP block */ + if (!ptp) + ptp = ERR_PTR(-EPROBE_DEFER); + else if (!IS_ERR(ptp)) + pci_dev_get(ptp->pdev); + + return ptp; +} + +void ptp_put(struct ptp *ptp) +{ + if (!ptp) + return; + + pci_dev_put(ptp->pdev); +} + +static int ptp_adjfine(struct ptp *ptp, long scaled_ppm) +{ + bool neg_adj = false; + u32 freq, freq_adj; + u64 comp, adj; + s64 ppb; + + if (scaled_ppm < 0) { + neg_adj = true; + scaled_ppm = -scaled_ppm; + } + + /* The hardware adds the clock compensation value to the PTP clock + * on every coprocessor clock cycle. Typical convention is that it + * represent number of nanosecond betwen each cycle. In this + * convention compensation value is in 64 bit fixed-point + * representation where upper 32 bits are number of nanoseconds + * and lower is fractions of nanosecond. + * The scaled_ppm represent the ratio in "parts per million" by which + * the compensation value should be corrected. + * To calculate new compenstation value we use 64bit fixed point + * arithmetic on following formula + * comp = tbase + tbase * scaled_ppm / (1M * 2^16) + * where tbase is the basic compensation value calculated + * initialy in the probe function. + */ + /* convert scaled_ppm to ppb */ + ppb = 1 + scaled_ppm; + ppb *= 125; + ppb >>= 13; + + if (cn10k_ptp_errata(ptp)) { + /* calculate the new frequency based on ppb */ + freq_adj = (ptp->clock_rate * ppb) / 1000000000ULL; + freq = neg_adj ? ptp->clock_rate + freq_adj : ptp->clock_rate - freq_adj; + comp = ptp_calc_adjusted_comp(freq); + } else { + comp = ((u64)1000000000ull << 32) / ptp->clock_rate; + adj = comp * ppb; + adj = div_u64(adj, 1000000000ull); + comp = neg_adj ? comp - adj : comp + adj; + } + writeq(comp, ptp->reg_base + PTP_CLOCK_COMP); + + return 0; +} + +static int ptp_get_clock(struct ptp *ptp, u64 *clk) +{ + /* Return the current PTP clock */ + *clk = ptp->read_ptp_tstmp(ptp); + + return 0; +} + +void ptp_start(struct ptp *ptp, u64 sclk, u32 ext_clk_freq, u32 extts) +{ + struct pci_dev *pdev; + u64 clock_comp; + u64 clock_cfg; + + if (!ptp) + return; + + pdev = ptp->pdev; + + if (!sclk) { + dev_err(&pdev->dev, "PTP input clock cannot be zero\n"); + return; + } + + /* sclk is in MHz */ + ptp->clock_rate = sclk * 1000000; + + /* Program the seconds rollover value to 1 second */ + if (is_ptp_dev_cnf10kb(ptp)) + writeq(0x3b9aca00, ptp->reg_base + PTP_SEC_ROLLOVER); + + /* Enable PTP clock */ + clock_cfg = readq(ptp->reg_base + PTP_CLOCK_CFG); + + if (ext_clk_freq) { + ptp->clock_rate = ext_clk_freq; + /* Set GPIO as PTP clock source */ + clock_cfg &= ~PTP_CLOCK_CFG_EXT_CLK_IN_MASK; + clock_cfg |= PTP_CLOCK_CFG_EXT_CLK_EN; + } + + if (extts) { + clock_cfg |= PTP_CLOCK_CFG_TSTMP_EDGE; + /* Set GPIO as timestamping source */ + clock_cfg &= ~PTP_CLOCK_CFG_TSTMP_IN_MASK; + clock_cfg |= PTP_CLOCK_CFG_TSTMP_EN; + } + + clock_cfg |= PTP_CLOCK_CFG_PTP_EN; + clock_cfg |= PTP_CLOCK_CFG_PPS_EN | PTP_CLOCK_CFG_PPS_INV; + writeq(clock_cfg, ptp->reg_base + PTP_CLOCK_CFG); + + /* Set 50% duty cycle for 1Hz output */ + writeq(0x1dcd650000000000, ptp->reg_base + PTP_PPS_HI_INCR); + writeq(0x1dcd650000000000, ptp->reg_base + PTP_PPS_LO_INCR); + if (cn10k_ptp_errata(ptp)) { + /* The ptp_clock_hi rollsover to zero once clock cycle before it + * reaches one second boundary. so, program the pps_lo_incr in + * such a way that the pps threshold value comparison at one + * second boundary will succeed and pps edge changes. After each + * one second boundary, the hrtimer handler will be invoked and + * reprograms the pps threshold value. + */ + ptp->clock_period = NSEC_PER_SEC / ptp->clock_rate; + writeq((0x1dcd6500ULL - ptp->clock_period) << 32, + ptp->reg_base + PTP_PPS_LO_INCR); + } + + if (cn10k_ptp_errata(ptp)) + clock_comp = ptp_calc_adjusted_comp(ptp->clock_rate); + else + clock_comp = ((u64)1000000000ull << 32) / ptp->clock_rate; + + /* Initial compensation value to start the nanosecs counter */ + writeq(clock_comp, ptp->reg_base + PTP_CLOCK_COMP); +} + +static int ptp_get_tstmp(struct ptp *ptp, u64 *clk) +{ + u64 timestamp; + + if (is_ptp_dev_cn10k(ptp)) { + timestamp = readq(ptp->reg_base + PTP_TIMESTAMP); + *clk = (timestamp >> 32) * NSEC_PER_SEC + (timestamp & 0xFFFFFFFF); + } else { + *clk = readq(ptp->reg_base + PTP_TIMESTAMP); + } + + return 0; +} + +static int ptp_set_thresh(struct ptp *ptp, u64 thresh) +{ + if (!cn10k_ptp_errata(ptp)) + writeq(thresh, ptp->reg_base + PTP_PPS_THRESH_HI); + + return 0; +} + +static int ptp_extts_on(struct ptp *ptp, int on) +{ + u64 ptp_clock_hi; + + if (cn10k_ptp_errata(ptp)) { + if (on) { + ptp_clock_hi = readq(ptp->reg_base + PTP_CLOCK_HI); + ptp_hrtimer_start(ptp, (ktime_t)ptp_clock_hi); + } else { + if (hrtimer_active(&ptp->hrtimer)) + hrtimer_cancel(&ptp->hrtimer); + } + } + + return 0; +} + +static int ptp_probe(struct pci_dev *pdev, + const struct pci_device_id *ent) +{ + struct ptp *ptp; + int err; + + ptp = kzalloc(sizeof(*ptp), GFP_KERNEL); + if (!ptp) { + err = -ENOMEM; + goto error; + } + + ptp->pdev = pdev; + + err = pcim_enable_device(pdev); + if (err) + goto error_free; + + err = pcim_iomap_regions(pdev, 1 << PCI_PTP_BAR_NO, pci_name(pdev)); + if (err) + goto error_free; + + ptp->reg_base = pcim_iomap_table(pdev)[PCI_PTP_BAR_NO]; + + pci_set_drvdata(pdev, ptp); + if (!first_ptp_block) + first_ptp_block = ptp; + + spin_lock_init(&ptp->ptp_lock); + if (is_ptp_tsfmt_sec_nsec(ptp)) + ptp->read_ptp_tstmp = &read_ptp_tstmp_sec_nsec; + else + ptp->read_ptp_tstmp = &read_ptp_tstmp_nsec; + + if (cn10k_ptp_errata(ptp)) { + hrtimer_init(&ptp->hrtimer, CLOCK_MONOTONIC, HRTIMER_MODE_REL); + ptp->hrtimer.function = ptp_reset_thresh; + } + + return 0; + +error_free: + kfree(ptp); + +error: + /* For `ptp_get()` we need to differentiate between the case + * when the core has not tried to probe this device and the case when + * the probe failed. In the later case we keep the error in + * `dev->driver_data`. + */ + pci_set_drvdata(pdev, ERR_PTR(err)); + if (!first_ptp_block) + first_ptp_block = ERR_PTR(err); + + return err; +} + +static void ptp_remove(struct pci_dev *pdev) +{ + struct ptp *ptp = pci_get_drvdata(pdev); + u64 clock_cfg; + + if (IS_ERR_OR_NULL(ptp)) + return; + + if (cn10k_ptp_errata(ptp) && hrtimer_active(&ptp->hrtimer)) + hrtimer_cancel(&ptp->hrtimer); + + /* Disable PTP clock */ + clock_cfg = readq(ptp->reg_base + PTP_CLOCK_CFG); + clock_cfg &= ~PTP_CLOCK_CFG_PTP_EN; + writeq(clock_cfg, ptp->reg_base + PTP_CLOCK_CFG); + kfree(ptp); +} + +static const struct pci_device_id ptp_id_table[] = { + { PCI_DEVICE_SUB(PCI_VENDOR_ID_CAVIUM, PCI_DEVID_OCTEONTX2_PTP, + PCI_VENDOR_ID_CAVIUM, + PCI_SUBSYS_DEVID_OCTX2_98xx_PTP) }, + { PCI_DEVICE_SUB(PCI_VENDOR_ID_CAVIUM, PCI_DEVID_OCTEONTX2_PTP, + PCI_VENDOR_ID_CAVIUM, + PCI_SUBSYS_DEVID_OCTX2_96XX_PTP) }, + { PCI_DEVICE_SUB(PCI_VENDOR_ID_CAVIUM, PCI_DEVID_OCTEONTX2_PTP, + PCI_VENDOR_ID_CAVIUM, + PCI_SUBSYS_DEVID_OCTX2_95XX_PTP) }, + { PCI_DEVICE_SUB(PCI_VENDOR_ID_CAVIUM, PCI_DEVID_OCTEONTX2_PTP, + PCI_VENDOR_ID_CAVIUM, + PCI_SUBSYS_DEVID_OCTX2_95XXN_PTP) }, + { PCI_DEVICE_SUB(PCI_VENDOR_ID_CAVIUM, PCI_DEVID_OCTEONTX2_PTP, + PCI_VENDOR_ID_CAVIUM, + PCI_SUBSYS_DEVID_OCTX2_95MM_PTP) }, + { PCI_DEVICE_SUB(PCI_VENDOR_ID_CAVIUM, PCI_DEVID_OCTEONTX2_PTP, + PCI_VENDOR_ID_CAVIUM, + PCI_SUBSYS_DEVID_OCTX2_95XXO_PTP) }, + { PCI_DEVICE(PCI_VENDOR_ID_CAVIUM, PCI_DEVID_CN10K_PTP) }, + { 0, } +}; + +struct pci_driver ptp_driver = { + .name = DRV_NAME, + .id_table = ptp_id_table, + .probe = ptp_probe, + .remove = ptp_remove, +}; + +int rvu_mbox_handler_ptp_op(struct rvu *rvu, struct ptp_req *req, + struct ptp_rsp *rsp) +{ + int err = 0; + + /* This function is the PTP mailbox handler invoked when + * called by AF consumers/netdev drivers via mailbox mechanism. + * It is used by netdev driver to get the PTP clock and to set + * frequency adjustments. Since mailbox can be called without + * notion of whether the driver is bound to ptp device below + * validation is needed as first step. + */ + if (!rvu->ptp) + return -ENODEV; + + switch (req->op) { + case PTP_OP_ADJFINE: + err = ptp_adjfine(rvu->ptp, req->scaled_ppm); + break; + case PTP_OP_GET_CLOCK: + err = ptp_get_clock(rvu->ptp, &rsp->clk); + break; + case PTP_OP_GET_TSTMP: + err = ptp_get_tstmp(rvu->ptp, &rsp->clk); + break; + case PTP_OP_SET_THRESH: + err = ptp_set_thresh(rvu->ptp, req->thresh); + break; + case PTP_OP_EXTTS_ON: + err = ptp_extts_on(rvu->ptp, req->extts_on); + break; + default: + err = -EINVAL; + break; + } + + return err; +} diff --git a/drivers/net/ethernet/marvell/octeontx2/af/ptp.h b/drivers/net/ethernet/marvell/octeontx2/af/ptp.h new file mode 100644 index 000000000..b9d92abc3 --- /dev/null +++ b/drivers/net/ethernet/marvell/octeontx2/af/ptp.h @@ -0,0 +1,32 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* Marvell PTP driver + * + * Copyright (C) 2020 Marvell. + * + */ + +#ifndef PTP_H +#define PTP_H + +#include <linux/timecounter.h> +#include <linux/time64.h> +#include <linux/spinlock.h> + +struct ptp { + struct pci_dev *pdev; + void __iomem *reg_base; + u64 (*read_ptp_tstmp)(struct ptp *ptp); + spinlock_t ptp_lock; /* lock */ + struct hrtimer hrtimer; + ktime_t last_ts; + u32 clock_rate; + u32 clock_period; +}; + +struct ptp *ptp_get(void); +void ptp_put(struct ptp *ptp); +void ptp_start(struct ptp *ptp, u64 sclk, u32 ext_clk_freq, u32 extts); + +extern struct pci_driver ptp_driver; + +#endif diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rpm.c b/drivers/net/ethernet/marvell/octeontx2/af/rpm.c new file mode 100644 index 000000000..6b4792a94 --- /dev/null +++ b/drivers/net/ethernet/marvell/octeontx2/af/rpm.c @@ -0,0 +1,502 @@ +// SPDX-License-Identifier: GPL-2.0 +/* Marvell CN10K RPM driver + * + * Copyright (C) 2020 Marvell. + * + */ + +#include "cgx.h" +#include "lmac_common.h" + +static struct mac_ops rpm_mac_ops = { + .name = "rpm", + .csr_offset = 0x4e00, + .lmac_offset = 20, + .int_register = RPMX_CMRX_SW_INT, + .int_set_reg = RPMX_CMRX_SW_INT_ENA_W1S, + .irq_offset = 1, + .int_ena_bit = BIT_ULL(0), + .lmac_fwi = RPM_LMAC_FWI, + .non_contiguous_serdes_lane = true, + .rx_stats_cnt = 43, + .tx_stats_cnt = 34, + .get_nr_lmacs = rpm_get_nr_lmacs, + .get_lmac_type = rpm_get_lmac_type, + .lmac_fifo_len = rpm_get_lmac_fifo_len, + .mac_lmac_intl_lbk = rpm_lmac_internal_loopback, + .mac_get_rx_stats = rpm_get_rx_stats, + .mac_get_tx_stats = rpm_get_tx_stats, + .mac_enadis_rx_pause_fwding = rpm_lmac_enadis_rx_pause_fwding, + .mac_get_pause_frm_status = rpm_lmac_get_pause_frm_status, + .mac_enadis_pause_frm = rpm_lmac_enadis_pause_frm, + .mac_pause_frm_config = rpm_lmac_pause_frm_config, + .mac_enadis_ptp_config = rpm_lmac_ptp_config, + .mac_rx_tx_enable = rpm_lmac_rx_tx_enable, + .mac_tx_enable = rpm_lmac_tx_enable, + .pfc_config = rpm_lmac_pfc_config, + .mac_get_pfc_frm_cfg = rpm_lmac_get_pfc_frm_cfg, +}; + +struct mac_ops *rpm_get_mac_ops(void) +{ + return &rpm_mac_ops; +} + +static void rpm_write(rpm_t *rpm, u64 lmac, u64 offset, u64 val) +{ + cgx_write(rpm, lmac, offset, val); +} + +static u64 rpm_read(rpm_t *rpm, u64 lmac, u64 offset) +{ + return cgx_read(rpm, lmac, offset); +} + +int rpm_get_nr_lmacs(void *rpmd) +{ + rpm_t *rpm = rpmd; + + return hweight8(rpm_read(rpm, 0, CGXX_CMRX_RX_LMACS) & 0xFULL); +} + +int rpm_lmac_tx_enable(void *rpmd, int lmac_id, bool enable) +{ + rpm_t *rpm = rpmd; + u64 cfg, last; + + if (!is_lmac_valid(rpm, lmac_id)) + return -ENODEV; + + cfg = rpm_read(rpm, lmac_id, RPMX_MTI_MAC100X_COMMAND_CONFIG); + last = cfg; + if (enable) + cfg |= RPM_TX_EN; + else + cfg &= ~(RPM_TX_EN); + + if (cfg != last) + rpm_write(rpm, lmac_id, RPMX_MTI_MAC100X_COMMAND_CONFIG, cfg); + return !!(last & RPM_TX_EN); +} + +int rpm_lmac_rx_tx_enable(void *rpmd, int lmac_id, bool enable) +{ + rpm_t *rpm = rpmd; + u64 cfg; + + if (!is_lmac_valid(rpm, lmac_id)) + return -ENODEV; + + cfg = rpm_read(rpm, lmac_id, RPMX_MTI_MAC100X_COMMAND_CONFIG); + if (enable) + cfg |= RPM_RX_EN | RPM_TX_EN; + else + cfg &= ~(RPM_RX_EN | RPM_TX_EN); + rpm_write(rpm, lmac_id, RPMX_MTI_MAC100X_COMMAND_CONFIG, cfg); + return 0; +} + +void rpm_lmac_enadis_rx_pause_fwding(void *rpmd, int lmac_id, bool enable) +{ + rpm_t *rpm = rpmd; + struct lmac *lmac; + u64 cfg; + + if (!rpm) + return; + + lmac = lmac_pdata(lmac_id, rpm); + if (!lmac) + return; + + /* Pause frames are not enabled just return */ + if (!bitmap_weight(lmac->rx_fc_pfvf_bmap.bmap, lmac->rx_fc_pfvf_bmap.max)) + return; + + if (enable) { + cfg = rpm_read(rpm, lmac_id, RPMX_MTI_MAC100X_COMMAND_CONFIG); + cfg &= ~RPMX_MTI_MAC100X_COMMAND_CONFIG_PAUSE_IGNORE; + rpm_write(rpm, lmac_id, RPMX_MTI_MAC100X_COMMAND_CONFIG, cfg); + } else { + cfg = rpm_read(rpm, lmac_id, RPMX_MTI_MAC100X_COMMAND_CONFIG); + cfg |= RPMX_MTI_MAC100X_COMMAND_CONFIG_PAUSE_IGNORE; + rpm_write(rpm, lmac_id, RPMX_MTI_MAC100X_COMMAND_CONFIG, cfg); + } +} + +int rpm_lmac_get_pause_frm_status(void *rpmd, int lmac_id, + u8 *tx_pause, u8 *rx_pause) +{ + rpm_t *rpm = rpmd; + u64 cfg; + + if (!is_lmac_valid(rpm, lmac_id)) + return -ENODEV; + + cfg = rpm_read(rpm, lmac_id, RPMX_MTI_MAC100X_COMMAND_CONFIG); + if (!(cfg & RPMX_MTI_MAC100X_COMMAND_CONFIG_PFC_MODE)) { + *rx_pause = !(cfg & RPMX_MTI_MAC100X_COMMAND_CONFIG_RX_P_DISABLE); + *tx_pause = !(cfg & RPMX_MTI_MAC100X_COMMAND_CONFIG_TX_P_DISABLE); + } + + return 0; +} + +static void rpm_cfg_pfc_quanta_thresh(rpm_t *rpm, int lmac_id, + unsigned long pfc_en, + bool enable) +{ + u64 quanta_offset = 0, quanta_thresh = 0, cfg; + int i, shift; + + /* Set pause time and interval */ + for_each_set_bit(i, &pfc_en, 16) { + switch (i) { + case 0: + case 1: + quanta_offset = RPMX_MTI_MAC100X_CL01_PAUSE_QUANTA; + quanta_thresh = RPMX_MTI_MAC100X_CL01_QUANTA_THRESH; + break; + case 2: + case 3: + quanta_offset = RPMX_MTI_MAC100X_CL23_PAUSE_QUANTA; + quanta_thresh = RPMX_MTI_MAC100X_CL23_QUANTA_THRESH; + break; + case 4: + case 5: + quanta_offset = RPMX_MTI_MAC100X_CL45_PAUSE_QUANTA; + quanta_thresh = RPMX_MTI_MAC100X_CL45_QUANTA_THRESH; + break; + case 6: + case 7: + quanta_offset = RPMX_MTI_MAC100X_CL67_PAUSE_QUANTA; + quanta_thresh = RPMX_MTI_MAC100X_CL67_QUANTA_THRESH; + break; + case 8: + case 9: + quanta_offset = RPMX_MTI_MAC100X_CL89_PAUSE_QUANTA; + quanta_thresh = RPMX_MTI_MAC100X_CL89_QUANTA_THRESH; + break; + case 10: + case 11: + quanta_offset = RPMX_MTI_MAC100X_CL1011_PAUSE_QUANTA; + quanta_thresh = RPMX_MTI_MAC100X_CL1011_QUANTA_THRESH; + break; + case 12: + case 13: + quanta_offset = RPMX_MTI_MAC100X_CL1213_PAUSE_QUANTA; + quanta_thresh = RPMX_MTI_MAC100X_CL1213_QUANTA_THRESH; + break; + case 14: + case 15: + quanta_offset = RPMX_MTI_MAC100X_CL1415_PAUSE_QUANTA; + quanta_thresh = RPMX_MTI_MAC100X_CL1415_QUANTA_THRESH; + break; + } + + if (!quanta_offset || !quanta_thresh) + continue; + + shift = (i % 2) ? 1 : 0; + cfg = rpm_read(rpm, lmac_id, quanta_offset); + if (enable) { + cfg |= ((u64)RPM_DEFAULT_PAUSE_TIME << shift * 16); + } else { + if (!shift) + cfg &= ~GENMASK_ULL(15, 0); + else + cfg &= ~GENMASK_ULL(31, 16); + } + rpm_write(rpm, lmac_id, quanta_offset, cfg); + + cfg = rpm_read(rpm, lmac_id, quanta_thresh); + if (enable) { + cfg |= ((u64)(RPM_DEFAULT_PAUSE_TIME / 2) << shift * 16); + } else { + if (!shift) + cfg &= ~GENMASK_ULL(15, 0); + else + cfg &= ~GENMASK_ULL(31, 16); + } + rpm_write(rpm, lmac_id, quanta_thresh, cfg); + } +} + +int rpm_lmac_enadis_pause_frm(void *rpmd, int lmac_id, u8 tx_pause, + u8 rx_pause) +{ + rpm_t *rpm = rpmd; + u64 cfg; + + if (!is_lmac_valid(rpm, lmac_id)) + return -ENODEV; + + cfg = rpm_read(rpm, lmac_id, RPMX_MTI_MAC100X_COMMAND_CONFIG); + cfg &= ~RPMX_MTI_MAC100X_COMMAND_CONFIG_RX_P_DISABLE; + cfg |= rx_pause ? 0x0 : RPMX_MTI_MAC100X_COMMAND_CONFIG_RX_P_DISABLE; + cfg &= ~RPMX_MTI_MAC100X_COMMAND_CONFIG_PAUSE_IGNORE; + cfg |= rx_pause ? 0x0 : RPMX_MTI_MAC100X_COMMAND_CONFIG_PAUSE_IGNORE; + rpm_write(rpm, lmac_id, RPMX_MTI_MAC100X_COMMAND_CONFIG, cfg); + + cfg = rpm_read(rpm, lmac_id, RPMX_MTI_MAC100X_COMMAND_CONFIG); + cfg &= ~RPMX_MTI_MAC100X_COMMAND_CONFIG_TX_P_DISABLE; + cfg |= tx_pause ? 0x0 : RPMX_MTI_MAC100X_COMMAND_CONFIG_TX_P_DISABLE; + rpm_write(rpm, lmac_id, RPMX_MTI_MAC100X_COMMAND_CONFIG, cfg); + + cfg = rpm_read(rpm, 0, RPMX_CMR_RX_OVR_BP); + if (tx_pause) { + /* Configure CL0 Pause Quanta & threshold for 802.3X frames */ + rpm_cfg_pfc_quanta_thresh(rpm, lmac_id, 1, true); + cfg &= ~RPMX_CMR_RX_OVR_BP_EN(lmac_id); + } else { + /* Disable all Pause Quanta & threshold values */ + rpm_cfg_pfc_quanta_thresh(rpm, lmac_id, 0xffff, false); + cfg |= RPMX_CMR_RX_OVR_BP_EN(lmac_id); + cfg &= ~RPMX_CMR_RX_OVR_BP_BP(lmac_id); + } + rpm_write(rpm, 0, RPMX_CMR_RX_OVR_BP, cfg); + return 0; +} + +void rpm_lmac_pause_frm_config(void *rpmd, int lmac_id, bool enable) +{ + rpm_t *rpm = rpmd; + u64 cfg; + + /* ALL pause frames received are completely ignored */ + cfg = rpm_read(rpm, lmac_id, RPMX_MTI_MAC100X_COMMAND_CONFIG); + cfg |= RPMX_MTI_MAC100X_COMMAND_CONFIG_RX_P_DISABLE; + rpm_write(rpm, lmac_id, RPMX_MTI_MAC100X_COMMAND_CONFIG, cfg); + + /* Disable forward pause to TX block */ + cfg = rpm_read(rpm, lmac_id, RPMX_MTI_MAC100X_COMMAND_CONFIG); + cfg |= RPMX_MTI_MAC100X_COMMAND_CONFIG_PAUSE_IGNORE; + rpm_write(rpm, lmac_id, RPMX_MTI_MAC100X_COMMAND_CONFIG, cfg); + + /* Disable pause frames transmission */ + cfg = rpm_read(rpm, lmac_id, RPMX_MTI_MAC100X_COMMAND_CONFIG); + cfg |= RPMX_MTI_MAC100X_COMMAND_CONFIG_TX_P_DISABLE; + rpm_write(rpm, lmac_id, RPMX_MTI_MAC100X_COMMAND_CONFIG, cfg); + + /* Disable all PFC classes */ + cfg = rpm_read(rpm, lmac_id, RPMX_CMRX_PRT_CBFC_CTL); + cfg = FIELD_SET(RPM_PFC_CLASS_MASK, 0, cfg); + rpm_write(rpm, lmac_id, RPMX_CMRX_PRT_CBFC_CTL, cfg); + + /* Disable forward pause to driver */ + cfg = rpm_read(rpm, lmac_id, RPMX_MTI_MAC100X_COMMAND_CONFIG); + cfg &= ~RPMX_MTI_MAC100X_COMMAND_CONFIG_PAUSE_FWD; + rpm_write(rpm, lmac_id, RPMX_MTI_MAC100X_COMMAND_CONFIG, cfg); + + /* Enable channel mask for all LMACS */ + rpm_write(rpm, 0, RPMX_CMR_CHAN_MSK_OR, ~0ULL); +} + +int rpm_get_rx_stats(void *rpmd, int lmac_id, int idx, u64 *rx_stat) +{ + rpm_t *rpm = rpmd; + u64 val_lo, val_hi; + + if (!rpm || lmac_id >= rpm->lmac_count) + return -ENODEV; + + mutex_lock(&rpm->lock); + + /* Update idx to point per lmac Rx statistics page */ + idx += lmac_id * rpm->mac_ops->rx_stats_cnt; + + /* Read lower 32 bits of counter */ + val_lo = rpm_read(rpm, 0, RPMX_MTI_STAT_RX_STAT_PAGES_COUNTERX + + (idx * 8)); + + /* upon read of lower 32 bits, higher 32 bits are written + * to RPMX_MTI_STAT_DATA_HI_CDC + */ + val_hi = rpm_read(rpm, 0, RPMX_MTI_STAT_DATA_HI_CDC); + + *rx_stat = (val_hi << 32 | val_lo); + + mutex_unlock(&rpm->lock); + return 0; +} + +int rpm_get_tx_stats(void *rpmd, int lmac_id, int idx, u64 *tx_stat) +{ + rpm_t *rpm = rpmd; + u64 val_lo, val_hi; + + if (!rpm || lmac_id >= rpm->lmac_count) + return -ENODEV; + + mutex_lock(&rpm->lock); + + /* Update idx to point per lmac Tx statistics page */ + idx += lmac_id * rpm->mac_ops->tx_stats_cnt; + + val_lo = rpm_read(rpm, 0, RPMX_MTI_STAT_TX_STAT_PAGES_COUNTERX + + (idx * 8)); + val_hi = rpm_read(rpm, 0, RPMX_MTI_STAT_DATA_HI_CDC); + + *tx_stat = (val_hi << 32 | val_lo); + + mutex_unlock(&rpm->lock); + return 0; +} + +u8 rpm_get_lmac_type(void *rpmd, int lmac_id) +{ + rpm_t *rpm = rpmd; + u64 req = 0, resp; + int err; + + req = FIELD_SET(CMDREG_ID, CGX_CMD_GET_LINK_STS, req); + err = cgx_fwi_cmd_generic(req, &resp, rpm, 0); + if (!err) + return FIELD_GET(RESP_LINKSTAT_LMAC_TYPE, resp); + return err; +} + +u32 rpm_get_lmac_fifo_len(void *rpmd, int lmac_id) +{ + rpm_t *rpm = rpmd; + u64 hi_perf_lmac; + u8 num_lmacs; + u32 fifo_len; + + fifo_len = rpm->mac_ops->fifo_len; + num_lmacs = rpm->mac_ops->get_nr_lmacs(rpm); + + switch (num_lmacs) { + case 1: + return fifo_len; + case 2: + return fifo_len / 2; + case 3: + /* LMAC marked as hi_perf gets half of the FIFO and rest 1/4th */ + hi_perf_lmac = rpm_read(rpm, 0, CGXX_CMRX_RX_LMACS); + hi_perf_lmac = (hi_perf_lmac >> 4) & 0x3ULL; + if (lmac_id == hi_perf_lmac) + return fifo_len / 2; + return fifo_len / 4; + case 4: + default: + return fifo_len / 4; + } + return 0; +} + +int rpm_lmac_internal_loopback(void *rpmd, int lmac_id, bool enable) +{ + rpm_t *rpm = rpmd; + u8 lmac_type; + u64 cfg; + + if (!rpm || lmac_id >= rpm->lmac_count) + return -ENODEV; + lmac_type = rpm->mac_ops->get_lmac_type(rpm, lmac_id); + + if (lmac_type == LMAC_MODE_QSGMII || lmac_type == LMAC_MODE_SGMII) { + dev_err(&rpm->pdev->dev, "loopback not supported for LPC mode\n"); + return 0; + } + + cfg = rpm_read(rpm, lmac_id, RPMX_MTI_PCS100X_CONTROL1); + + if (enable) + cfg |= RPMX_MTI_PCS_LBK; + else + cfg &= ~RPMX_MTI_PCS_LBK; + rpm_write(rpm, lmac_id, RPMX_MTI_PCS100X_CONTROL1, cfg); + + return 0; +} + +void rpm_lmac_ptp_config(void *rpmd, int lmac_id, bool enable) +{ + rpm_t *rpm = rpmd; + u64 cfg; + + if (!is_lmac_valid(rpm, lmac_id)) + return; + + cfg = rpm_read(rpm, lmac_id, RPMX_CMRX_CFG); + if (enable) { + cfg |= RPMX_RX_TS_PREPEND; + cfg |= RPMX_TX_PTP_1S_SUPPORT; + } else { + cfg &= ~RPMX_RX_TS_PREPEND; + cfg &= ~RPMX_TX_PTP_1S_SUPPORT; + } + + rpm_write(rpm, lmac_id, RPMX_CMRX_CFG, cfg); + + cfg = rpm_read(rpm, lmac_id, RPMX_MTI_MAC100X_XIF_MODE); + + if (enable) { + cfg |= RPMX_ONESTEP_ENABLE; + cfg &= ~RPMX_TS_BINARY_MODE; + } else { + cfg &= ~RPMX_ONESTEP_ENABLE; + } + + rpm_write(rpm, lmac_id, RPMX_MTI_MAC100X_XIF_MODE, cfg); +} + +int rpm_lmac_pfc_config(void *rpmd, int lmac_id, u8 tx_pause, u8 rx_pause, u16 pfc_en) +{ + rpm_t *rpm = rpmd; + u64 cfg, class_en; + + if (!is_lmac_valid(rpm, lmac_id)) + return -ENODEV; + + cfg = rpm_read(rpm, lmac_id, RPMX_MTI_MAC100X_COMMAND_CONFIG); + class_en = rpm_read(rpm, lmac_id, RPMX_CMRX_PRT_CBFC_CTL); + pfc_en |= FIELD_GET(RPM_PFC_CLASS_MASK, class_en); + + if (rx_pause) { + cfg &= ~(RPMX_MTI_MAC100X_COMMAND_CONFIG_RX_P_DISABLE | + RPMX_MTI_MAC100X_COMMAND_CONFIG_PAUSE_IGNORE); + } else { + cfg |= (RPMX_MTI_MAC100X_COMMAND_CONFIG_RX_P_DISABLE | + RPMX_MTI_MAC100X_COMMAND_CONFIG_PAUSE_IGNORE); + } + + if (tx_pause) { + rpm_cfg_pfc_quanta_thresh(rpm, lmac_id, pfc_en, true); + cfg &= ~RPMX_MTI_MAC100X_COMMAND_CONFIG_TX_P_DISABLE; + class_en = FIELD_SET(RPM_PFC_CLASS_MASK, pfc_en, class_en); + } else { + rpm_cfg_pfc_quanta_thresh(rpm, lmac_id, 0xfff, false); + cfg |= RPMX_MTI_MAC100X_COMMAND_CONFIG_TX_P_DISABLE; + class_en = FIELD_SET(RPM_PFC_CLASS_MASK, 0, class_en); + } + + if (!rx_pause && !tx_pause) + cfg &= ~RPMX_MTI_MAC100X_COMMAND_CONFIG_PFC_MODE; + else + cfg |= RPMX_MTI_MAC100X_COMMAND_CONFIG_PFC_MODE; + + rpm_write(rpm, lmac_id, RPMX_MTI_MAC100X_COMMAND_CONFIG, cfg); + + rpm_write(rpm, lmac_id, RPMX_CMRX_PRT_CBFC_CTL, class_en); + + return 0; +} + +int rpm_lmac_get_pfc_frm_cfg(void *rpmd, int lmac_id, u8 *tx_pause, u8 *rx_pause) +{ + rpm_t *rpm = rpmd; + u64 cfg; + + if (!is_lmac_valid(rpm, lmac_id)) + return -ENODEV; + + cfg = rpm_read(rpm, lmac_id, RPMX_MTI_MAC100X_COMMAND_CONFIG); + if (cfg & RPMX_MTI_MAC100X_COMMAND_CONFIG_PFC_MODE) { + *rx_pause = !(cfg & RPMX_MTI_MAC100X_COMMAND_CONFIG_RX_P_DISABLE); + *tx_pause = !(cfg & RPMX_MTI_MAC100X_COMMAND_CONFIG_TX_P_DISABLE); + } + + return 0; +} diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rpm.h b/drivers/net/ethernet/marvell/octeontx2/af/rpm.h new file mode 100644 index 000000000..77f2ef9e1 --- /dev/null +++ b/drivers/net/ethernet/marvell/octeontx2/af/rpm.h @@ -0,0 +1,100 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* Marvell CN10K RPM driver + * + * Copyright (C) 2020 Marvell. + * + */ + +#ifndef RPM_H +#define RPM_H + +#include <linux/bits.h> + +/* PCI device IDs */ +#define PCI_DEVID_CN10K_RPM 0xA060 + +/* Registers */ +#define RPMX_CMRX_CFG 0x00 +#define RPMX_RX_TS_PREPEND BIT_ULL(22) +#define RPMX_TX_PTP_1S_SUPPORT BIT_ULL(17) +#define RPMX_CMRX_SW_INT 0x180 +#define RPMX_CMRX_SW_INT_W1S 0x188 +#define RPMX_CMRX_SW_INT_ENA_W1S 0x198 +#define RPMX_CMRX_LINK_CFG 0x1070 +#define RPMX_MTI_PCS100X_CONTROL1 0x20000 +#define RPMX_MTI_LPCSX_CONTROL1 0x30000 +#define RPMX_MTI_PCS_LBK BIT_ULL(14) +#define RPMX_MTI_LPCSX_CONTROL(id) (0x30000 | ((id) * 0x100)) + +#define RPMX_CMRX_LINK_RANGE_MASK GENMASK_ULL(19, 16) +#define RPMX_CMRX_LINK_BASE_MASK GENMASK_ULL(11, 0) +#define RPMX_MTI_MAC100X_COMMAND_CONFIG 0x8010 +#define RPMX_MTI_MAC100X_COMMAND_CONFIG_RX_P_DISABLE BIT_ULL(29) +#define RPMX_MTI_MAC100X_COMMAND_CONFIG_TX_P_DISABLE BIT_ULL(28) +#define RPMX_MTI_MAC100X_COMMAND_CONFIG_PAUSE_IGNORE BIT_ULL(8) +#define RPMX_MTI_MAC100X_COMMAND_CONFIG_PFC_MODE BIT_ULL(19) +#define RPMX_MTI_MAC100X_CL01_PAUSE_QUANTA 0x80A8 +#define RPMX_MTI_MAC100X_CL23_PAUSE_QUANTA 0x80B0 +#define RPMX_MTI_MAC100X_CL45_PAUSE_QUANTA 0x80B8 +#define RPMX_MTI_MAC100X_CL67_PAUSE_QUANTA 0x80C0 +#define RPMX_MTI_MAC100X_CL01_QUANTA_THRESH 0x80C8 +#define RPMX_MTI_MAC100X_CL23_QUANTA_THRESH 0x80D0 +#define RPMX_MTI_MAC100X_CL45_QUANTA_THRESH 0x80D8 +#define RPMX_MTI_MAC100X_CL67_QUANTA_THRESH 0x80E0 +#define RPMX_MTI_MAC100X_CL89_PAUSE_QUANTA 0x8108 +#define RPMX_MTI_MAC100X_CL1011_PAUSE_QUANTA 0x8110 +#define RPMX_MTI_MAC100X_CL1213_PAUSE_QUANTA 0x8118 +#define RPMX_MTI_MAC100X_CL1415_PAUSE_QUANTA 0x8120 +#define RPMX_MTI_MAC100X_CL89_QUANTA_THRESH 0x8128 +#define RPMX_MTI_MAC100X_CL1011_QUANTA_THRESH 0x8130 +#define RPMX_MTI_MAC100X_CL1213_QUANTA_THRESH 0x8138 +#define RPMX_MTI_MAC100X_CL1415_QUANTA_THRESH 0x8140 +#define RPMX_CMR_RX_OVR_BP 0x4120 +#define RPMX_CMR_RX_OVR_BP_EN(x) BIT_ULL((x) + 8) +#define RPMX_CMR_RX_OVR_BP_BP(x) BIT_ULL((x) + 4) +#define RPMX_CMR_CHAN_MSK_OR 0x4118 +#define RPMX_MTI_STAT_RX_STAT_PAGES_COUNTERX 0x12000 +#define RPMX_MTI_STAT_TX_STAT_PAGES_COUNTERX 0x13000 +#define RPMX_MTI_STAT_DATA_HI_CDC 0x10038 + +#define RPM_LMAC_FWI 0xa +#define RPM_TX_EN BIT_ULL(0) +#define RPM_RX_EN BIT_ULL(1) +#define RPMX_CMRX_PRT_CBFC_CTL 0x5B08 +#define RPMX_CMRX_PRT_CBFC_CTL_LOGL_EN_RX_SHIFT 33 +#define RPMX_CMRX_PRT_CBFC_CTL_PHYS_BP_SHIFT 16 +#define RPMX_CMRX_PRT_CBFC_CTL_LOGL_EN_TX_SHIFT 0 +#define RPM_PFC_CLASS_MASK GENMASK_ULL(48, 33) +#define RPMX_MTI_MAC100X_CL89_QUANTA_THRESH 0x8128 +#define RPMX_MTI_MAC100X_COMMAND_CONFIG_TX_PAD_EN BIT_ULL(11) +#define RPMX_MTI_MAC100X_COMMAND_CONFIG_PAUSE_IGNORE BIT_ULL(8) +#define RPMX_MTI_MAC100X_COMMAND_CONFIG_PAUSE_FWD BIT_ULL(7) +#define RPMX_MTI_MAC100X_CL01_PAUSE_QUANTA 0x80A8 +#define RPMX_MTI_MAC100X_CL89_PAUSE_QUANTA 0x8108 +#define RPM_DEFAULT_PAUSE_TIME 0x7FF + +#define RPMX_MTI_MAC100X_XIF_MODE 0x8100 +#define RPMX_ONESTEP_ENABLE BIT_ULL(5) +#define RPMX_TS_BINARY_MODE BIT_ULL(11) + +/* Function Declarations */ +int rpm_get_nr_lmacs(void *rpmd); +u8 rpm_get_lmac_type(void *rpmd, int lmac_id); +u32 rpm_get_lmac_fifo_len(void *rpmd, int lmac_id); +int rpm_lmac_internal_loopback(void *rpmd, int lmac_id, bool enable); +void rpm_lmac_enadis_rx_pause_fwding(void *rpmd, int lmac_id, bool enable); +int rpm_lmac_get_pause_frm_status(void *cgxd, int lmac_id, u8 *tx_pause, + u8 *rx_pause); +void rpm_lmac_pause_frm_config(void *rpmd, int lmac_id, bool enable); +int rpm_lmac_enadis_pause_frm(void *rpmd, int lmac_id, u8 tx_pause, + u8 rx_pause); +int rpm_get_tx_stats(void *rpmd, int lmac_id, int idx, u64 *tx_stat); +int rpm_get_rx_stats(void *rpmd, int lmac_id, int idx, u64 *rx_stat); +void rpm_lmac_ptp_config(void *rpmd, int lmac_id, bool enable); +int rpm_lmac_rx_tx_enable(void *rpmd, int lmac_id, bool enable); +int rpm_lmac_tx_enable(void *rpmd, int lmac_id, bool enable); +int rpm_lmac_pfc_config(void *rpmd, int lmac_id, u8 tx_pause, u8 rx_pause, + u16 pfc_en); +int rpm_lmac_get_pfc_frm_cfg(void *rpmd, int lmac_id, u8 *tx_pause, + u8 *rx_pause); +#endif /* RPM_H */ diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rvu.c b/drivers/net/ethernet/marvell/octeontx2/af/rvu.c new file mode 100644 index 000000000..d88d86bf0 --- /dev/null +++ b/drivers/net/ethernet/marvell/octeontx2/af/rvu.c @@ -0,0 +1,3426 @@ +// SPDX-License-Identifier: GPL-2.0 +/* Marvell RVU Admin Function driver + * + * Copyright (C) 2018 Marvell. + * + */ + +#include <linux/module.h> +#include <linux/interrupt.h> +#include <linux/delay.h> +#include <linux/irq.h> +#include <linux/pci.h> +#include <linux/sysfs.h> + +#include "cgx.h" +#include "rvu.h" +#include "rvu_reg.h" +#include "ptp.h" +#include "mcs.h" + +#include "rvu_trace.h" +#include "rvu_npc_hash.h" + +#define DRV_NAME "rvu_af" +#define DRV_STRING "Marvell OcteonTX2 RVU Admin Function Driver" + +static void rvu_set_msix_offset(struct rvu *rvu, struct rvu_pfvf *pfvf, + struct rvu_block *block, int lf); +static void rvu_clear_msix_offset(struct rvu *rvu, struct rvu_pfvf *pfvf, + struct rvu_block *block, int lf); +static void __rvu_flr_handler(struct rvu *rvu, u16 pcifunc); + +static int rvu_mbox_init(struct rvu *rvu, struct mbox_wq_info *mw, + int type, int num, + void (mbox_handler)(struct work_struct *), + void (mbox_up_handler)(struct work_struct *)); +enum { + TYPE_AFVF, + TYPE_AFPF, +}; + +/* Supported devices */ +static const struct pci_device_id rvu_id_table[] = { + { PCI_DEVICE(PCI_VENDOR_ID_CAVIUM, PCI_DEVID_OCTEONTX2_RVU_AF) }, + { 0, } /* end of table */ +}; + +MODULE_AUTHOR("Sunil Goutham <sgoutham@marvell.com>"); +MODULE_DESCRIPTION(DRV_STRING); +MODULE_LICENSE("GPL v2"); +MODULE_DEVICE_TABLE(pci, rvu_id_table); + +static char *mkex_profile; /* MKEX profile name */ +module_param(mkex_profile, charp, 0000); +MODULE_PARM_DESC(mkex_profile, "MKEX profile name string"); + +static char *kpu_profile; /* KPU profile name */ +module_param(kpu_profile, charp, 0000); +MODULE_PARM_DESC(kpu_profile, "KPU profile name string"); + +static void rvu_setup_hw_capabilities(struct rvu *rvu) +{ + struct rvu_hwinfo *hw = rvu->hw; + + hw->cap.nix_tx_aggr_lvl = NIX_TXSCH_LVL_TL1; + hw->cap.nix_fixed_txschq_mapping = false; + hw->cap.nix_shaping = true; + hw->cap.nix_tx_link_bp = true; + hw->cap.nix_rx_multicast = true; + hw->cap.nix_shaper_toggle_wait = false; + hw->cap.npc_hash_extract = false; + hw->cap.npc_exact_match_enabled = false; + hw->rvu = rvu; + + if (is_rvu_pre_96xx_C0(rvu)) { + hw->cap.nix_fixed_txschq_mapping = true; + hw->cap.nix_txsch_per_cgx_lmac = 4; + hw->cap.nix_txsch_per_lbk_lmac = 132; + hw->cap.nix_txsch_per_sdp_lmac = 76; + hw->cap.nix_shaping = false; + hw->cap.nix_tx_link_bp = false; + if (is_rvu_96xx_A0(rvu) || is_rvu_95xx_A0(rvu)) + hw->cap.nix_rx_multicast = false; + } + if (!is_rvu_pre_96xx_C0(rvu)) + hw->cap.nix_shaper_toggle_wait = true; + + if (!is_rvu_otx2(rvu)) + hw->cap.per_pf_mbox_regs = true; + + if (is_rvu_npc_hash_extract_en(rvu)) + hw->cap.npc_hash_extract = true; +} + +/* Poll a RVU block's register 'offset', for a 'zero' + * or 'nonzero' at bits specified by 'mask' + */ +int rvu_poll_reg(struct rvu *rvu, u64 block, u64 offset, u64 mask, bool zero) +{ + unsigned long timeout = jiffies + usecs_to_jiffies(20000); + bool twice = false; + void __iomem *reg; + u64 reg_val; + + reg = rvu->afreg_base + ((block << 28) | offset); +again: + reg_val = readq(reg); + if (zero && !(reg_val & mask)) + return 0; + if (!zero && (reg_val & mask)) + return 0; + if (time_before(jiffies, timeout)) { + usleep_range(1, 5); + goto again; + } + /* In scenarios where CPU is scheduled out before checking + * 'time_before' (above) and gets scheduled in such that + * jiffies are beyond timeout value, then check again if HW is + * done with the operation in the meantime. + */ + if (!twice) { + twice = true; + goto again; + } + return -EBUSY; +} + +int rvu_alloc_rsrc(struct rsrc_bmap *rsrc) +{ + int id; + + if (!rsrc->bmap) + return -EINVAL; + + id = find_first_zero_bit(rsrc->bmap, rsrc->max); + if (id >= rsrc->max) + return -ENOSPC; + + __set_bit(id, rsrc->bmap); + + return id; +} + +int rvu_alloc_rsrc_contig(struct rsrc_bmap *rsrc, int nrsrc) +{ + int start; + + if (!rsrc->bmap) + return -EINVAL; + + start = bitmap_find_next_zero_area(rsrc->bmap, rsrc->max, 0, nrsrc, 0); + if (start >= rsrc->max) + return -ENOSPC; + + bitmap_set(rsrc->bmap, start, nrsrc); + return start; +} + +static void rvu_free_rsrc_contig(struct rsrc_bmap *rsrc, int nrsrc, int start) +{ + if (!rsrc->bmap) + return; + if (start >= rsrc->max) + return; + + bitmap_clear(rsrc->bmap, start, nrsrc); +} + +bool rvu_rsrc_check_contig(struct rsrc_bmap *rsrc, int nrsrc) +{ + int start; + + if (!rsrc->bmap) + return false; + + start = bitmap_find_next_zero_area(rsrc->bmap, rsrc->max, 0, nrsrc, 0); + if (start >= rsrc->max) + return false; + + return true; +} + +void rvu_free_rsrc(struct rsrc_bmap *rsrc, int id) +{ + if (!rsrc->bmap) + return; + + __clear_bit(id, rsrc->bmap); +} + +int rvu_rsrc_free_count(struct rsrc_bmap *rsrc) +{ + int used; + + if (!rsrc->bmap) + return 0; + + used = bitmap_weight(rsrc->bmap, rsrc->max); + return (rsrc->max - used); +} + +bool is_rsrc_free(struct rsrc_bmap *rsrc, int id) +{ + if (!rsrc->bmap) + return false; + + return !test_bit(id, rsrc->bmap); +} + +int rvu_alloc_bitmap(struct rsrc_bmap *rsrc) +{ + rsrc->bmap = kcalloc(BITS_TO_LONGS(rsrc->max), + sizeof(long), GFP_KERNEL); + if (!rsrc->bmap) + return -ENOMEM; + return 0; +} + +void rvu_free_bitmap(struct rsrc_bmap *rsrc) +{ + kfree(rsrc->bmap); +} + +/* Get block LF's HW index from a PF_FUNC's block slot number */ +int rvu_get_lf(struct rvu *rvu, struct rvu_block *block, u16 pcifunc, u16 slot) +{ + u16 match = 0; + int lf; + + mutex_lock(&rvu->rsrc_lock); + for (lf = 0; lf < block->lf.max; lf++) { + if (block->fn_map[lf] == pcifunc) { + if (slot == match) { + mutex_unlock(&rvu->rsrc_lock); + return lf; + } + match++; + } + } + mutex_unlock(&rvu->rsrc_lock); + return -ENODEV; +} + +/* Convert BLOCK_TYPE_E to a BLOCK_ADDR_E. + * Some silicon variants of OcteonTX2 supports + * multiple blocks of same type. + * + * @pcifunc has to be zero when no LF is yet attached. + * + * For a pcifunc if LFs are attached from multiple blocks of same type, then + * return blkaddr of first encountered block. + */ +int rvu_get_blkaddr(struct rvu *rvu, int blktype, u16 pcifunc) +{ + int devnum, blkaddr = -ENODEV; + u64 cfg, reg; + bool is_pf; + + switch (blktype) { + case BLKTYPE_NPC: + blkaddr = BLKADDR_NPC; + goto exit; + case BLKTYPE_NPA: + blkaddr = BLKADDR_NPA; + goto exit; + case BLKTYPE_NIX: + /* For now assume NIX0 */ + if (!pcifunc) { + blkaddr = BLKADDR_NIX0; + goto exit; + } + break; + case BLKTYPE_SSO: + blkaddr = BLKADDR_SSO; + goto exit; + case BLKTYPE_SSOW: + blkaddr = BLKADDR_SSOW; + goto exit; + case BLKTYPE_TIM: + blkaddr = BLKADDR_TIM; + goto exit; + case BLKTYPE_CPT: + /* For now assume CPT0 */ + if (!pcifunc) { + blkaddr = BLKADDR_CPT0; + goto exit; + } + break; + } + + /* Check if this is a RVU PF or VF */ + if (pcifunc & RVU_PFVF_FUNC_MASK) { + is_pf = false; + devnum = rvu_get_hwvf(rvu, pcifunc); + } else { + is_pf = true; + devnum = rvu_get_pf(pcifunc); + } + + /* Check if the 'pcifunc' has a NIX LF from 'BLKADDR_NIX0' or + * 'BLKADDR_NIX1'. + */ + if (blktype == BLKTYPE_NIX) { + reg = is_pf ? RVU_PRIV_PFX_NIXX_CFG(0) : + RVU_PRIV_HWVFX_NIXX_CFG(0); + cfg = rvu_read64(rvu, BLKADDR_RVUM, reg | (devnum << 16)); + if (cfg) { + blkaddr = BLKADDR_NIX0; + goto exit; + } + + reg = is_pf ? RVU_PRIV_PFX_NIXX_CFG(1) : + RVU_PRIV_HWVFX_NIXX_CFG(1); + cfg = rvu_read64(rvu, BLKADDR_RVUM, reg | (devnum << 16)); + if (cfg) + blkaddr = BLKADDR_NIX1; + } + + if (blktype == BLKTYPE_CPT) { + reg = is_pf ? RVU_PRIV_PFX_CPTX_CFG(0) : + RVU_PRIV_HWVFX_CPTX_CFG(0); + cfg = rvu_read64(rvu, BLKADDR_RVUM, reg | (devnum << 16)); + if (cfg) { + blkaddr = BLKADDR_CPT0; + goto exit; + } + + reg = is_pf ? RVU_PRIV_PFX_CPTX_CFG(1) : + RVU_PRIV_HWVFX_CPTX_CFG(1); + cfg = rvu_read64(rvu, BLKADDR_RVUM, reg | (devnum << 16)); + if (cfg) + blkaddr = BLKADDR_CPT1; + } + +exit: + if (is_block_implemented(rvu->hw, blkaddr)) + return blkaddr; + return -ENODEV; +} + +static void rvu_update_rsrc_map(struct rvu *rvu, struct rvu_pfvf *pfvf, + struct rvu_block *block, u16 pcifunc, + u16 lf, bool attach) +{ + int devnum, num_lfs = 0; + bool is_pf; + u64 reg; + + if (lf >= block->lf.max) { + dev_err(&rvu->pdev->dev, + "%s: FATAL: LF %d is >= %s's max lfs i.e %d\n", + __func__, lf, block->name, block->lf.max); + return; + } + + /* Check if this is for a RVU PF or VF */ + if (pcifunc & RVU_PFVF_FUNC_MASK) { + is_pf = false; + devnum = rvu_get_hwvf(rvu, pcifunc); + } else { + is_pf = true; + devnum = rvu_get_pf(pcifunc); + } + + block->fn_map[lf] = attach ? pcifunc : 0; + + switch (block->addr) { + case BLKADDR_NPA: + pfvf->npalf = attach ? true : false; + num_lfs = pfvf->npalf; + break; + case BLKADDR_NIX0: + case BLKADDR_NIX1: + pfvf->nixlf = attach ? true : false; + num_lfs = pfvf->nixlf; + break; + case BLKADDR_SSO: + attach ? pfvf->sso++ : pfvf->sso--; + num_lfs = pfvf->sso; + break; + case BLKADDR_SSOW: + attach ? pfvf->ssow++ : pfvf->ssow--; + num_lfs = pfvf->ssow; + break; + case BLKADDR_TIM: + attach ? pfvf->timlfs++ : pfvf->timlfs--; + num_lfs = pfvf->timlfs; + break; + case BLKADDR_CPT0: + attach ? pfvf->cptlfs++ : pfvf->cptlfs--; + num_lfs = pfvf->cptlfs; + break; + case BLKADDR_CPT1: + attach ? pfvf->cpt1_lfs++ : pfvf->cpt1_lfs--; + num_lfs = pfvf->cpt1_lfs; + break; + } + + reg = is_pf ? block->pf_lfcnt_reg : block->vf_lfcnt_reg; + rvu_write64(rvu, BLKADDR_RVUM, reg | (devnum << 16), num_lfs); +} + +inline int rvu_get_pf(u16 pcifunc) +{ + return (pcifunc >> RVU_PFVF_PF_SHIFT) & RVU_PFVF_PF_MASK; +} + +void rvu_get_pf_numvfs(struct rvu *rvu, int pf, int *numvfs, int *hwvf) +{ + u64 cfg; + + /* Get numVFs attached to this PF and first HWVF */ + cfg = rvu_read64(rvu, BLKADDR_RVUM, RVU_PRIV_PFX_CFG(pf)); + if (numvfs) + *numvfs = (cfg >> 12) & 0xFF; + if (hwvf) + *hwvf = cfg & 0xFFF; +} + +int rvu_get_hwvf(struct rvu *rvu, int pcifunc) +{ + int pf, func; + u64 cfg; + + pf = rvu_get_pf(pcifunc); + func = pcifunc & RVU_PFVF_FUNC_MASK; + + /* Get first HWVF attached to this PF */ + cfg = rvu_read64(rvu, BLKADDR_RVUM, RVU_PRIV_PFX_CFG(pf)); + + return ((cfg & 0xFFF) + func - 1); +} + +struct rvu_pfvf *rvu_get_pfvf(struct rvu *rvu, int pcifunc) +{ + /* Check if it is a PF or VF */ + if (pcifunc & RVU_PFVF_FUNC_MASK) + return &rvu->hwvf[rvu_get_hwvf(rvu, pcifunc)]; + else + return &rvu->pf[rvu_get_pf(pcifunc)]; +} + +static bool is_pf_func_valid(struct rvu *rvu, u16 pcifunc) +{ + int pf, vf, nvfs; + u64 cfg; + + pf = rvu_get_pf(pcifunc); + if (pf >= rvu->hw->total_pfs) + return false; + + if (!(pcifunc & RVU_PFVF_FUNC_MASK)) + return true; + + /* Check if VF is within number of VFs attached to this PF */ + vf = (pcifunc & RVU_PFVF_FUNC_MASK) - 1; + cfg = rvu_read64(rvu, BLKADDR_RVUM, RVU_PRIV_PFX_CFG(pf)); + nvfs = (cfg >> 12) & 0xFF; + if (vf >= nvfs) + return false; + + return true; +} + +bool is_block_implemented(struct rvu_hwinfo *hw, int blkaddr) +{ + struct rvu_block *block; + + if (blkaddr < BLKADDR_RVUM || blkaddr >= BLK_COUNT) + return false; + + block = &hw->block[blkaddr]; + return block->implemented; +} + +static void rvu_check_block_implemented(struct rvu *rvu) +{ + struct rvu_hwinfo *hw = rvu->hw; + struct rvu_block *block; + int blkid; + u64 cfg; + + /* For each block check if 'implemented' bit is set */ + for (blkid = 0; blkid < BLK_COUNT; blkid++) { + block = &hw->block[blkid]; + cfg = rvupf_read64(rvu, RVU_PF_BLOCK_ADDRX_DISC(blkid)); + if (cfg & BIT_ULL(11)) + block->implemented = true; + } +} + +static void rvu_setup_rvum_blk_revid(struct rvu *rvu) +{ + rvu_write64(rvu, BLKADDR_RVUM, + RVU_PRIV_BLOCK_TYPEX_REV(BLKTYPE_RVUM), + RVU_BLK_RVUM_REVID); +} + +static void rvu_clear_rvum_blk_revid(struct rvu *rvu) +{ + rvu_write64(rvu, BLKADDR_RVUM, + RVU_PRIV_BLOCK_TYPEX_REV(BLKTYPE_RVUM), 0x00); +} + +int rvu_lf_reset(struct rvu *rvu, struct rvu_block *block, int lf) +{ + int err; + + if (!block->implemented) + return 0; + + rvu_write64(rvu, block->addr, block->lfreset_reg, lf | BIT_ULL(12)); + err = rvu_poll_reg(rvu, block->addr, block->lfreset_reg, BIT_ULL(12), + true); + return err; +} + +static void rvu_block_reset(struct rvu *rvu, int blkaddr, u64 rst_reg) +{ + struct rvu_block *block = &rvu->hw->block[blkaddr]; + int err; + + if (!block->implemented) + return; + + rvu_write64(rvu, blkaddr, rst_reg, BIT_ULL(0)); + err = rvu_poll_reg(rvu, blkaddr, rst_reg, BIT_ULL(63), true); + if (err) { + dev_err(rvu->dev, "HW block:%d reset timeout retrying again\n", blkaddr); + while (rvu_poll_reg(rvu, blkaddr, rst_reg, BIT_ULL(63), true) == -EBUSY) + ; + } +} + +static void rvu_reset_all_blocks(struct rvu *rvu) +{ + /* Do a HW reset of all RVU blocks */ + rvu_block_reset(rvu, BLKADDR_NPA, NPA_AF_BLK_RST); + rvu_block_reset(rvu, BLKADDR_NIX0, NIX_AF_BLK_RST); + rvu_block_reset(rvu, BLKADDR_NIX1, NIX_AF_BLK_RST); + rvu_block_reset(rvu, BLKADDR_NPC, NPC_AF_BLK_RST); + rvu_block_reset(rvu, BLKADDR_SSO, SSO_AF_BLK_RST); + rvu_block_reset(rvu, BLKADDR_TIM, TIM_AF_BLK_RST); + rvu_block_reset(rvu, BLKADDR_CPT0, CPT_AF_BLK_RST); + rvu_block_reset(rvu, BLKADDR_CPT1, CPT_AF_BLK_RST); + rvu_block_reset(rvu, BLKADDR_NDC_NIX0_RX, NDC_AF_BLK_RST); + rvu_block_reset(rvu, BLKADDR_NDC_NIX0_TX, NDC_AF_BLK_RST); + rvu_block_reset(rvu, BLKADDR_NDC_NIX1_RX, NDC_AF_BLK_RST); + rvu_block_reset(rvu, BLKADDR_NDC_NIX1_TX, NDC_AF_BLK_RST); + rvu_block_reset(rvu, BLKADDR_NDC_NPA0, NDC_AF_BLK_RST); +} + +static void rvu_scan_block(struct rvu *rvu, struct rvu_block *block) +{ + struct rvu_pfvf *pfvf; + u64 cfg; + int lf; + + for (lf = 0; lf < block->lf.max; lf++) { + cfg = rvu_read64(rvu, block->addr, + block->lfcfg_reg | (lf << block->lfshift)); + if (!(cfg & BIT_ULL(63))) + continue; + + /* Set this resource as being used */ + __set_bit(lf, block->lf.bmap); + + /* Get, to whom this LF is attached */ + pfvf = rvu_get_pfvf(rvu, (cfg >> 8) & 0xFFFF); + rvu_update_rsrc_map(rvu, pfvf, block, + (cfg >> 8) & 0xFFFF, lf, true); + + /* Set start MSIX vector for this LF within this PF/VF */ + rvu_set_msix_offset(rvu, pfvf, block, lf); + } +} + +static void rvu_check_min_msix_vec(struct rvu *rvu, int nvecs, int pf, int vf) +{ + int min_vecs; + + if (!vf) + goto check_pf; + + if (!nvecs) { + dev_warn(rvu->dev, + "PF%d:VF%d is configured with zero msix vectors, %d\n", + pf, vf - 1, nvecs); + } + return; + +check_pf: + if (pf == 0) + min_vecs = RVU_AF_INT_VEC_CNT + RVU_PF_INT_VEC_CNT; + else + min_vecs = RVU_PF_INT_VEC_CNT; + + if (!(nvecs < min_vecs)) + return; + dev_warn(rvu->dev, + "PF%d is configured with too few vectors, %d, min is %d\n", + pf, nvecs, min_vecs); +} + +static int rvu_setup_msix_resources(struct rvu *rvu) +{ + struct rvu_hwinfo *hw = rvu->hw; + int pf, vf, numvfs, hwvf, err; + int nvecs, offset, max_msix; + struct rvu_pfvf *pfvf; + u64 cfg, phy_addr; + dma_addr_t iova; + + for (pf = 0; pf < hw->total_pfs; pf++) { + cfg = rvu_read64(rvu, BLKADDR_RVUM, RVU_PRIV_PFX_CFG(pf)); + /* If PF is not enabled, nothing to do */ + if (!((cfg >> 20) & 0x01)) + continue; + + rvu_get_pf_numvfs(rvu, pf, &numvfs, &hwvf); + + pfvf = &rvu->pf[pf]; + /* Get num of MSIX vectors attached to this PF */ + cfg = rvu_read64(rvu, BLKADDR_RVUM, RVU_PRIV_PFX_MSIX_CFG(pf)); + pfvf->msix.max = ((cfg >> 32) & 0xFFF) + 1; + rvu_check_min_msix_vec(rvu, pfvf->msix.max, pf, 0); + + /* Alloc msix bitmap for this PF */ + err = rvu_alloc_bitmap(&pfvf->msix); + if (err) + return err; + + /* Allocate memory for MSIX vector to RVU block LF mapping */ + pfvf->msix_lfmap = devm_kcalloc(rvu->dev, pfvf->msix.max, + sizeof(u16), GFP_KERNEL); + if (!pfvf->msix_lfmap) + return -ENOMEM; + + /* For PF0 (AF) firmware will set msix vector offsets for + * AF, block AF and PF0_INT vectors, so jump to VFs. + */ + if (!pf) + goto setup_vfmsix; + + /* Set MSIX offset for PF's 'RVU_PF_INT_VEC' vectors. + * These are allocated on driver init and never freed, + * so no need to set 'msix_lfmap' for these. + */ + cfg = rvu_read64(rvu, BLKADDR_RVUM, RVU_PRIV_PFX_INT_CFG(pf)); + nvecs = (cfg >> 12) & 0xFF; + cfg &= ~0x7FFULL; + offset = rvu_alloc_rsrc_contig(&pfvf->msix, nvecs); + rvu_write64(rvu, BLKADDR_RVUM, + RVU_PRIV_PFX_INT_CFG(pf), cfg | offset); +setup_vfmsix: + /* Alloc msix bitmap for VFs */ + for (vf = 0; vf < numvfs; vf++) { + pfvf = &rvu->hwvf[hwvf + vf]; + /* Get num of MSIX vectors attached to this VF */ + cfg = rvu_read64(rvu, BLKADDR_RVUM, + RVU_PRIV_PFX_MSIX_CFG(pf)); + pfvf->msix.max = (cfg & 0xFFF) + 1; + rvu_check_min_msix_vec(rvu, pfvf->msix.max, pf, vf + 1); + + /* Alloc msix bitmap for this VF */ + err = rvu_alloc_bitmap(&pfvf->msix); + if (err) + return err; + + pfvf->msix_lfmap = + devm_kcalloc(rvu->dev, pfvf->msix.max, + sizeof(u16), GFP_KERNEL); + if (!pfvf->msix_lfmap) + return -ENOMEM; + + /* Set MSIX offset for HWVF's 'RVU_VF_INT_VEC' vectors. + * These are allocated on driver init and never freed, + * so no need to set 'msix_lfmap' for these. + */ + cfg = rvu_read64(rvu, BLKADDR_RVUM, + RVU_PRIV_HWVFX_INT_CFG(hwvf + vf)); + nvecs = (cfg >> 12) & 0xFF; + cfg &= ~0x7FFULL; + offset = rvu_alloc_rsrc_contig(&pfvf->msix, nvecs); + rvu_write64(rvu, BLKADDR_RVUM, + RVU_PRIV_HWVFX_INT_CFG(hwvf + vf), + cfg | offset); + } + } + + /* HW interprets RVU_AF_MSIXTR_BASE address as an IOVA, hence + * create an IOMMU mapping for the physical address configured by + * firmware and reconfig RVU_AF_MSIXTR_BASE with IOVA. + */ + cfg = rvu_read64(rvu, BLKADDR_RVUM, RVU_PRIV_CONST); + max_msix = cfg & 0xFFFFF; + if (rvu->fwdata && rvu->fwdata->msixtr_base) + phy_addr = rvu->fwdata->msixtr_base; + else + phy_addr = rvu_read64(rvu, BLKADDR_RVUM, RVU_AF_MSIXTR_BASE); + + iova = dma_map_resource(rvu->dev, phy_addr, + max_msix * PCI_MSIX_ENTRY_SIZE, + DMA_BIDIRECTIONAL, 0); + + if (dma_mapping_error(rvu->dev, iova)) + return -ENOMEM; + + rvu_write64(rvu, BLKADDR_RVUM, RVU_AF_MSIXTR_BASE, (u64)iova); + rvu->msix_base_iova = iova; + rvu->msixtr_base_phy = phy_addr; + + return 0; +} + +static void rvu_reset_msix(struct rvu *rvu) +{ + /* Restore msixtr base register */ + rvu_write64(rvu, BLKADDR_RVUM, RVU_AF_MSIXTR_BASE, + rvu->msixtr_base_phy); +} + +static void rvu_free_hw_resources(struct rvu *rvu) +{ + struct rvu_hwinfo *hw = rvu->hw; + struct rvu_block *block; + struct rvu_pfvf *pfvf; + int id, max_msix; + u64 cfg; + + rvu_npa_freemem(rvu); + rvu_npc_freemem(rvu); + rvu_nix_freemem(rvu); + + /* Free block LF bitmaps */ + for (id = 0; id < BLK_COUNT; id++) { + block = &hw->block[id]; + kfree(block->lf.bmap); + } + + /* Free MSIX bitmaps */ + for (id = 0; id < hw->total_pfs; id++) { + pfvf = &rvu->pf[id]; + kfree(pfvf->msix.bmap); + } + + for (id = 0; id < hw->total_vfs; id++) { + pfvf = &rvu->hwvf[id]; + kfree(pfvf->msix.bmap); + } + + /* Unmap MSIX vector base IOVA mapping */ + if (!rvu->msix_base_iova) + return; + cfg = rvu_read64(rvu, BLKADDR_RVUM, RVU_PRIV_CONST); + max_msix = cfg & 0xFFFFF; + dma_unmap_resource(rvu->dev, rvu->msix_base_iova, + max_msix * PCI_MSIX_ENTRY_SIZE, + DMA_BIDIRECTIONAL, 0); + + rvu_reset_msix(rvu); + mutex_destroy(&rvu->rsrc_lock); +} + +static void rvu_setup_pfvf_macaddress(struct rvu *rvu) +{ + struct rvu_hwinfo *hw = rvu->hw; + int pf, vf, numvfs, hwvf; + struct rvu_pfvf *pfvf; + u64 *mac; + + for (pf = 0; pf < hw->total_pfs; pf++) { + /* For PF0(AF), Assign MAC address to only VFs (LBKVFs) */ + if (!pf) + goto lbkvf; + + if (!is_pf_cgxmapped(rvu, pf)) + continue; + /* Assign MAC address to PF */ + pfvf = &rvu->pf[pf]; + if (rvu->fwdata && pf < PF_MACNUM_MAX) { + mac = &rvu->fwdata->pf_macs[pf]; + if (*mac) + u64_to_ether_addr(*mac, pfvf->mac_addr); + else + eth_random_addr(pfvf->mac_addr); + } else { + eth_random_addr(pfvf->mac_addr); + } + ether_addr_copy(pfvf->default_mac, pfvf->mac_addr); + +lbkvf: + /* Assign MAC address to VFs*/ + rvu_get_pf_numvfs(rvu, pf, &numvfs, &hwvf); + for (vf = 0; vf < numvfs; vf++, hwvf++) { + pfvf = &rvu->hwvf[hwvf]; + if (rvu->fwdata && hwvf < VF_MACNUM_MAX) { + mac = &rvu->fwdata->vf_macs[hwvf]; + if (*mac) + u64_to_ether_addr(*mac, pfvf->mac_addr); + else + eth_random_addr(pfvf->mac_addr); + } else { + eth_random_addr(pfvf->mac_addr); + } + ether_addr_copy(pfvf->default_mac, pfvf->mac_addr); + } + } +} + +static int rvu_fwdata_init(struct rvu *rvu) +{ + u64 fwdbase; + int err; + + /* Get firmware data base address */ + err = cgx_get_fwdata_base(&fwdbase); + if (err) + goto fail; + rvu->fwdata = ioremap_wc(fwdbase, sizeof(struct rvu_fwdata)); + if (!rvu->fwdata) + goto fail; + if (!is_rvu_fwdata_valid(rvu)) { + dev_err(rvu->dev, + "Mismatch in 'fwdata' struct btw kernel and firmware\n"); + iounmap(rvu->fwdata); + rvu->fwdata = NULL; + return -EINVAL; + } + return 0; +fail: + dev_info(rvu->dev, "Unable to fetch 'fwdata' from firmware\n"); + return -EIO; +} + +static void rvu_fwdata_exit(struct rvu *rvu) +{ + if (rvu->fwdata) + iounmap(rvu->fwdata); +} + +static int rvu_setup_nix_hw_resource(struct rvu *rvu, int blkaddr) +{ + struct rvu_hwinfo *hw = rvu->hw; + struct rvu_block *block; + int blkid; + u64 cfg; + + /* Init NIX LF's bitmap */ + block = &hw->block[blkaddr]; + if (!block->implemented) + return 0; + blkid = (blkaddr == BLKADDR_NIX0) ? 0 : 1; + cfg = rvu_read64(rvu, blkaddr, NIX_AF_CONST2); + block->lf.max = cfg & 0xFFF; + block->addr = blkaddr; + block->type = BLKTYPE_NIX; + block->lfshift = 8; + block->lookup_reg = NIX_AF_RVU_LF_CFG_DEBUG; + block->pf_lfcnt_reg = RVU_PRIV_PFX_NIXX_CFG(blkid); + block->vf_lfcnt_reg = RVU_PRIV_HWVFX_NIXX_CFG(blkid); + block->lfcfg_reg = NIX_PRIV_LFX_CFG; + block->msixcfg_reg = NIX_PRIV_LFX_INT_CFG; + block->lfreset_reg = NIX_AF_LF_RST; + block->rvu = rvu; + sprintf(block->name, "NIX%d", blkid); + rvu->nix_blkaddr[blkid] = blkaddr; + return rvu_alloc_bitmap(&block->lf); +} + +static int rvu_setup_cpt_hw_resource(struct rvu *rvu, int blkaddr) +{ + struct rvu_hwinfo *hw = rvu->hw; + struct rvu_block *block; + int blkid; + u64 cfg; + + /* Init CPT LF's bitmap */ + block = &hw->block[blkaddr]; + if (!block->implemented) + return 0; + blkid = (blkaddr == BLKADDR_CPT0) ? 0 : 1; + cfg = rvu_read64(rvu, blkaddr, CPT_AF_CONSTANTS0); + block->lf.max = cfg & 0xFF; + block->addr = blkaddr; + block->type = BLKTYPE_CPT; + block->multislot = true; + block->lfshift = 3; + block->lookup_reg = CPT_AF_RVU_LF_CFG_DEBUG; + block->pf_lfcnt_reg = RVU_PRIV_PFX_CPTX_CFG(blkid); + block->vf_lfcnt_reg = RVU_PRIV_HWVFX_CPTX_CFG(blkid); + block->lfcfg_reg = CPT_PRIV_LFX_CFG; + block->msixcfg_reg = CPT_PRIV_LFX_INT_CFG; + block->lfreset_reg = CPT_AF_LF_RST; + block->rvu = rvu; + sprintf(block->name, "CPT%d", blkid); + return rvu_alloc_bitmap(&block->lf); +} + +static void rvu_get_lbk_bufsize(struct rvu *rvu) +{ + struct pci_dev *pdev = NULL; + void __iomem *base; + u64 lbk_const; + + pdev = pci_get_device(PCI_VENDOR_ID_CAVIUM, + PCI_DEVID_OCTEONTX2_LBK, pdev); + if (!pdev) + return; + + base = pci_ioremap_bar(pdev, 0); + if (!base) + goto err_put; + + lbk_const = readq(base + LBK_CONST); + + /* cache fifo size */ + rvu->hw->lbk_bufsize = FIELD_GET(LBK_CONST_BUF_SIZE, lbk_const); + + iounmap(base); +err_put: + pci_dev_put(pdev); +} + +static int rvu_setup_hw_resources(struct rvu *rvu) +{ + struct rvu_hwinfo *hw = rvu->hw; + struct rvu_block *block; + int blkid, err; + u64 cfg; + + /* Get HW supported max RVU PF & VF count */ + cfg = rvu_read64(rvu, BLKADDR_RVUM, RVU_PRIV_CONST); + hw->total_pfs = (cfg >> 32) & 0xFF; + hw->total_vfs = (cfg >> 20) & 0xFFF; + hw->max_vfs_per_pf = (cfg >> 40) & 0xFF; + + /* Init NPA LF's bitmap */ + block = &hw->block[BLKADDR_NPA]; + if (!block->implemented) + goto nix; + cfg = rvu_read64(rvu, BLKADDR_NPA, NPA_AF_CONST); + block->lf.max = (cfg >> 16) & 0xFFF; + block->addr = BLKADDR_NPA; + block->type = BLKTYPE_NPA; + block->lfshift = 8; + block->lookup_reg = NPA_AF_RVU_LF_CFG_DEBUG; + block->pf_lfcnt_reg = RVU_PRIV_PFX_NPA_CFG; + block->vf_lfcnt_reg = RVU_PRIV_HWVFX_NPA_CFG; + block->lfcfg_reg = NPA_PRIV_LFX_CFG; + block->msixcfg_reg = NPA_PRIV_LFX_INT_CFG; + block->lfreset_reg = NPA_AF_LF_RST; + block->rvu = rvu; + sprintf(block->name, "NPA"); + err = rvu_alloc_bitmap(&block->lf); + if (err) { + dev_err(rvu->dev, + "%s: Failed to allocate NPA LF bitmap\n", __func__); + return err; + } + +nix: + err = rvu_setup_nix_hw_resource(rvu, BLKADDR_NIX0); + if (err) { + dev_err(rvu->dev, + "%s: Failed to allocate NIX0 LFs bitmap\n", __func__); + return err; + } + + err = rvu_setup_nix_hw_resource(rvu, BLKADDR_NIX1); + if (err) { + dev_err(rvu->dev, + "%s: Failed to allocate NIX1 LFs bitmap\n", __func__); + return err; + } + + /* Init SSO group's bitmap */ + block = &hw->block[BLKADDR_SSO]; + if (!block->implemented) + goto ssow; + cfg = rvu_read64(rvu, BLKADDR_SSO, SSO_AF_CONST); + block->lf.max = cfg & 0xFFFF; + block->addr = BLKADDR_SSO; + block->type = BLKTYPE_SSO; + block->multislot = true; + block->lfshift = 3; + block->lookup_reg = SSO_AF_RVU_LF_CFG_DEBUG; + block->pf_lfcnt_reg = RVU_PRIV_PFX_SSO_CFG; + block->vf_lfcnt_reg = RVU_PRIV_HWVFX_SSO_CFG; + block->lfcfg_reg = SSO_PRIV_LFX_HWGRP_CFG; + block->msixcfg_reg = SSO_PRIV_LFX_HWGRP_INT_CFG; + block->lfreset_reg = SSO_AF_LF_HWGRP_RST; + block->rvu = rvu; + sprintf(block->name, "SSO GROUP"); + err = rvu_alloc_bitmap(&block->lf); + if (err) { + dev_err(rvu->dev, + "%s: Failed to allocate SSO LF bitmap\n", __func__); + return err; + } + +ssow: + /* Init SSO workslot's bitmap */ + block = &hw->block[BLKADDR_SSOW]; + if (!block->implemented) + goto tim; + block->lf.max = (cfg >> 56) & 0xFF; + block->addr = BLKADDR_SSOW; + block->type = BLKTYPE_SSOW; + block->multislot = true; + block->lfshift = 3; + block->lookup_reg = SSOW_AF_RVU_LF_HWS_CFG_DEBUG; + block->pf_lfcnt_reg = RVU_PRIV_PFX_SSOW_CFG; + block->vf_lfcnt_reg = RVU_PRIV_HWVFX_SSOW_CFG; + block->lfcfg_reg = SSOW_PRIV_LFX_HWS_CFG; + block->msixcfg_reg = SSOW_PRIV_LFX_HWS_INT_CFG; + block->lfreset_reg = SSOW_AF_LF_HWS_RST; + block->rvu = rvu; + sprintf(block->name, "SSOWS"); + err = rvu_alloc_bitmap(&block->lf); + if (err) { + dev_err(rvu->dev, + "%s: Failed to allocate SSOW LF bitmap\n", __func__); + return err; + } + +tim: + /* Init TIM LF's bitmap */ + block = &hw->block[BLKADDR_TIM]; + if (!block->implemented) + goto cpt; + cfg = rvu_read64(rvu, BLKADDR_TIM, TIM_AF_CONST); + block->lf.max = cfg & 0xFFFF; + block->addr = BLKADDR_TIM; + block->type = BLKTYPE_TIM; + block->multislot = true; + block->lfshift = 3; + block->lookup_reg = TIM_AF_RVU_LF_CFG_DEBUG; + block->pf_lfcnt_reg = RVU_PRIV_PFX_TIM_CFG; + block->vf_lfcnt_reg = RVU_PRIV_HWVFX_TIM_CFG; + block->lfcfg_reg = TIM_PRIV_LFX_CFG; + block->msixcfg_reg = TIM_PRIV_LFX_INT_CFG; + block->lfreset_reg = TIM_AF_LF_RST; + block->rvu = rvu; + sprintf(block->name, "TIM"); + err = rvu_alloc_bitmap(&block->lf); + if (err) { + dev_err(rvu->dev, + "%s: Failed to allocate TIM LF bitmap\n", __func__); + return err; + } + +cpt: + err = rvu_setup_cpt_hw_resource(rvu, BLKADDR_CPT0); + if (err) { + dev_err(rvu->dev, + "%s: Failed to allocate CPT0 LF bitmap\n", __func__); + return err; + } + err = rvu_setup_cpt_hw_resource(rvu, BLKADDR_CPT1); + if (err) { + dev_err(rvu->dev, + "%s: Failed to allocate CPT1 LF bitmap\n", __func__); + return err; + } + + /* Allocate memory for PFVF data */ + rvu->pf = devm_kcalloc(rvu->dev, hw->total_pfs, + sizeof(struct rvu_pfvf), GFP_KERNEL); + if (!rvu->pf) { + dev_err(rvu->dev, + "%s: Failed to allocate memory for PF's rvu_pfvf struct\n", __func__); + return -ENOMEM; + } + + rvu->hwvf = devm_kcalloc(rvu->dev, hw->total_vfs, + sizeof(struct rvu_pfvf), GFP_KERNEL); + if (!rvu->hwvf) { + dev_err(rvu->dev, + "%s: Failed to allocate memory for VF's rvu_pfvf struct\n", __func__); + return -ENOMEM; + } + + mutex_init(&rvu->rsrc_lock); + + rvu_fwdata_init(rvu); + + err = rvu_setup_msix_resources(rvu); + if (err) { + dev_err(rvu->dev, + "%s: Failed to setup MSIX resources\n", __func__); + return err; + } + + for (blkid = 0; blkid < BLK_COUNT; blkid++) { + block = &hw->block[blkid]; + if (!block->lf.bmap) + continue; + + /* Allocate memory for block LF/slot to pcifunc mapping info */ + block->fn_map = devm_kcalloc(rvu->dev, block->lf.max, + sizeof(u16), GFP_KERNEL); + if (!block->fn_map) { + err = -ENOMEM; + goto msix_err; + } + + /* Scan all blocks to check if low level firmware has + * already provisioned any of the resources to a PF/VF. + */ + rvu_scan_block(rvu, block); + } + + err = rvu_set_channels_base(rvu); + if (err) + goto msix_err; + + err = rvu_npc_init(rvu); + if (err) { + dev_err(rvu->dev, "%s: Failed to initialize npc\n", __func__); + goto npc_err; + } + + err = rvu_cgx_init(rvu); + if (err) { + dev_err(rvu->dev, "%s: Failed to initialize cgx\n", __func__); + goto cgx_err; + } + + err = rvu_npc_exact_init(rvu); + if (err) { + dev_err(rvu->dev, "failed to initialize exact match table\n"); + return err; + } + + /* Assign MACs for CGX mapped functions */ + rvu_setup_pfvf_macaddress(rvu); + + err = rvu_npa_init(rvu); + if (err) { + dev_err(rvu->dev, "%s: Failed to initialize npa\n", __func__); + goto npa_err; + } + + rvu_get_lbk_bufsize(rvu); + + err = rvu_nix_init(rvu); + if (err) { + dev_err(rvu->dev, "%s: Failed to initialize nix\n", __func__); + goto nix_err; + } + + err = rvu_sdp_init(rvu); + if (err) { + dev_err(rvu->dev, "%s: Failed to initialize sdp\n", __func__); + goto nix_err; + } + + rvu_program_channels(rvu); + + err = rvu_mcs_init(rvu); + if (err) { + dev_err(rvu->dev, "%s: Failed to initialize mcs\n", __func__); + goto nix_err; + } + + return 0; + +nix_err: + rvu_nix_freemem(rvu); +npa_err: + rvu_npa_freemem(rvu); +cgx_err: + rvu_cgx_exit(rvu); +npc_err: + rvu_npc_freemem(rvu); + rvu_fwdata_exit(rvu); +msix_err: + rvu_reset_msix(rvu); + return err; +} + +/* NPA and NIX admin queue APIs */ +void rvu_aq_free(struct rvu *rvu, struct admin_queue *aq) +{ + if (!aq) + return; + + qmem_free(rvu->dev, aq->inst); + qmem_free(rvu->dev, aq->res); + devm_kfree(rvu->dev, aq); +} + +int rvu_aq_alloc(struct rvu *rvu, struct admin_queue **ad_queue, + int qsize, int inst_size, int res_size) +{ + struct admin_queue *aq; + int err; + + *ad_queue = devm_kzalloc(rvu->dev, sizeof(*aq), GFP_KERNEL); + if (!*ad_queue) + return -ENOMEM; + aq = *ad_queue; + + /* Alloc memory for instructions i.e AQ */ + err = qmem_alloc(rvu->dev, &aq->inst, qsize, inst_size); + if (err) { + devm_kfree(rvu->dev, aq); + return err; + } + + /* Alloc memory for results */ + err = qmem_alloc(rvu->dev, &aq->res, qsize, res_size); + if (err) { + rvu_aq_free(rvu, aq); + return err; + } + + spin_lock_init(&aq->lock); + return 0; +} + +int rvu_mbox_handler_ready(struct rvu *rvu, struct msg_req *req, + struct ready_msg_rsp *rsp) +{ + if (rvu->fwdata) { + rsp->rclk_freq = rvu->fwdata->rclk; + rsp->sclk_freq = rvu->fwdata->sclk; + } + return 0; +} + +/* Get current count of a RVU block's LF/slots + * provisioned to a given RVU func. + */ +u16 rvu_get_rsrc_mapcount(struct rvu_pfvf *pfvf, int blkaddr) +{ + switch (blkaddr) { + case BLKADDR_NPA: + return pfvf->npalf ? 1 : 0; + case BLKADDR_NIX0: + case BLKADDR_NIX1: + return pfvf->nixlf ? 1 : 0; + case BLKADDR_SSO: + return pfvf->sso; + case BLKADDR_SSOW: + return pfvf->ssow; + case BLKADDR_TIM: + return pfvf->timlfs; + case BLKADDR_CPT0: + return pfvf->cptlfs; + case BLKADDR_CPT1: + return pfvf->cpt1_lfs; + } + return 0; +} + +/* Return true if LFs of block type are attached to pcifunc */ +static bool is_blktype_attached(struct rvu_pfvf *pfvf, int blktype) +{ + switch (blktype) { + case BLKTYPE_NPA: + return pfvf->npalf ? 1 : 0; + case BLKTYPE_NIX: + return pfvf->nixlf ? 1 : 0; + case BLKTYPE_SSO: + return !!pfvf->sso; + case BLKTYPE_SSOW: + return !!pfvf->ssow; + case BLKTYPE_TIM: + return !!pfvf->timlfs; + case BLKTYPE_CPT: + return pfvf->cptlfs || pfvf->cpt1_lfs; + } + + return false; +} + +bool is_pffunc_map_valid(struct rvu *rvu, u16 pcifunc, int blktype) +{ + struct rvu_pfvf *pfvf; + + if (!is_pf_func_valid(rvu, pcifunc)) + return false; + + pfvf = rvu_get_pfvf(rvu, pcifunc); + + /* Check if this PFFUNC has a LF of type blktype attached */ + if (!is_blktype_attached(pfvf, blktype)) + return false; + + return true; +} + +static int rvu_lookup_rsrc(struct rvu *rvu, struct rvu_block *block, + int pcifunc, int slot) +{ + u64 val; + + val = ((u64)pcifunc << 24) | (slot << 16) | (1ULL << 13); + rvu_write64(rvu, block->addr, block->lookup_reg, val); + /* Wait for the lookup to finish */ + /* TODO: put some timeout here */ + while (rvu_read64(rvu, block->addr, block->lookup_reg) & (1ULL << 13)) + ; + + val = rvu_read64(rvu, block->addr, block->lookup_reg); + + /* Check LF valid bit */ + if (!(val & (1ULL << 12))) + return -1; + + return (val & 0xFFF); +} + +int rvu_get_blkaddr_from_slot(struct rvu *rvu, int blktype, u16 pcifunc, + u16 global_slot, u16 *slot_in_block) +{ + struct rvu_pfvf *pfvf = rvu_get_pfvf(rvu, pcifunc); + int numlfs, total_lfs = 0, nr_blocks = 0; + int i, num_blkaddr[BLK_COUNT] = { 0 }; + struct rvu_block *block; + int blkaddr; + u16 start_slot; + + if (!is_blktype_attached(pfvf, blktype)) + return -ENODEV; + + /* Get all the block addresses from which LFs are attached to + * the given pcifunc in num_blkaddr[]. + */ + for (blkaddr = BLKADDR_RVUM; blkaddr < BLK_COUNT; blkaddr++) { + block = &rvu->hw->block[blkaddr]; + if (block->type != blktype) + continue; + if (!is_block_implemented(rvu->hw, blkaddr)) + continue; + + numlfs = rvu_get_rsrc_mapcount(pfvf, blkaddr); + if (numlfs) { + total_lfs += numlfs; + num_blkaddr[nr_blocks] = blkaddr; + nr_blocks++; + } + } + + if (global_slot >= total_lfs) + return -ENODEV; + + /* Based on the given global slot number retrieve the + * correct block address out of all attached block + * addresses and slot number in that block. + */ + total_lfs = 0; + blkaddr = -ENODEV; + for (i = 0; i < nr_blocks; i++) { + numlfs = rvu_get_rsrc_mapcount(pfvf, num_blkaddr[i]); + total_lfs += numlfs; + if (global_slot < total_lfs) { + blkaddr = num_blkaddr[i]; + start_slot = total_lfs - numlfs; + *slot_in_block = global_slot - start_slot; + break; + } + } + + return blkaddr; +} + +static void rvu_detach_block(struct rvu *rvu, int pcifunc, int blktype) +{ + struct rvu_pfvf *pfvf = rvu_get_pfvf(rvu, pcifunc); + struct rvu_hwinfo *hw = rvu->hw; + struct rvu_block *block; + int slot, lf, num_lfs; + int blkaddr; + + blkaddr = rvu_get_blkaddr(rvu, blktype, pcifunc); + if (blkaddr < 0) + return; + + if (blktype == BLKTYPE_NIX) + rvu_nix_reset_mac(pfvf, pcifunc); + + block = &hw->block[blkaddr]; + + num_lfs = rvu_get_rsrc_mapcount(pfvf, block->addr); + if (!num_lfs) + return; + + for (slot = 0; slot < num_lfs; slot++) { + lf = rvu_lookup_rsrc(rvu, block, pcifunc, slot); + if (lf < 0) /* This should never happen */ + continue; + + /* Disable the LF */ + rvu_write64(rvu, blkaddr, block->lfcfg_reg | + (lf << block->lfshift), 0x00ULL); + + /* Update SW maintained mapping info as well */ + rvu_update_rsrc_map(rvu, pfvf, block, + pcifunc, lf, false); + + /* Free the resource */ + rvu_free_rsrc(&block->lf, lf); + + /* Clear MSIX vector offset for this LF */ + rvu_clear_msix_offset(rvu, pfvf, block, lf); + } +} + +static int rvu_detach_rsrcs(struct rvu *rvu, struct rsrc_detach *detach, + u16 pcifunc) +{ + struct rvu_hwinfo *hw = rvu->hw; + bool detach_all = true; + struct rvu_block *block; + int blkid; + + mutex_lock(&rvu->rsrc_lock); + + /* Check for partial resource detach */ + if (detach && detach->partial) + detach_all = false; + + /* Check for RVU block's LFs attached to this func, + * if so, detach them. + */ + for (blkid = 0; blkid < BLK_COUNT; blkid++) { + block = &hw->block[blkid]; + if (!block->lf.bmap) + continue; + if (!detach_all && detach) { + if (blkid == BLKADDR_NPA && !detach->npalf) + continue; + else if ((blkid == BLKADDR_NIX0) && !detach->nixlf) + continue; + else if ((blkid == BLKADDR_NIX1) && !detach->nixlf) + continue; + else if ((blkid == BLKADDR_SSO) && !detach->sso) + continue; + else if ((blkid == BLKADDR_SSOW) && !detach->ssow) + continue; + else if ((blkid == BLKADDR_TIM) && !detach->timlfs) + continue; + else if ((blkid == BLKADDR_CPT0) && !detach->cptlfs) + continue; + else if ((blkid == BLKADDR_CPT1) && !detach->cptlfs) + continue; + } + rvu_detach_block(rvu, pcifunc, block->type); + } + + mutex_unlock(&rvu->rsrc_lock); + return 0; +} + +int rvu_mbox_handler_detach_resources(struct rvu *rvu, + struct rsrc_detach *detach, + struct msg_rsp *rsp) +{ + return rvu_detach_rsrcs(rvu, detach, detach->hdr.pcifunc); +} + +int rvu_get_nix_blkaddr(struct rvu *rvu, u16 pcifunc) +{ + struct rvu_pfvf *pfvf = rvu_get_pfvf(rvu, pcifunc); + int blkaddr = BLKADDR_NIX0, vf; + struct rvu_pfvf *pf; + + pf = rvu_get_pfvf(rvu, pcifunc & ~RVU_PFVF_FUNC_MASK); + + /* All CGX mapped PFs are set with assigned NIX block during init */ + if (is_pf_cgxmapped(rvu, rvu_get_pf(pcifunc))) { + blkaddr = pf->nix_blkaddr; + } else if (is_afvf(pcifunc)) { + vf = pcifunc - 1; + /* Assign NIX based on VF number. All even numbered VFs get + * NIX0 and odd numbered gets NIX1 + */ + blkaddr = (vf & 1) ? BLKADDR_NIX1 : BLKADDR_NIX0; + /* NIX1 is not present on all silicons */ + if (!is_block_implemented(rvu->hw, BLKADDR_NIX1)) + blkaddr = BLKADDR_NIX0; + } + + /* if SDP1 then the blkaddr is NIX1 */ + if (is_sdp_pfvf(pcifunc) && pf->sdp_info->node_id == 1) + blkaddr = BLKADDR_NIX1; + + switch (blkaddr) { + case BLKADDR_NIX1: + pfvf->nix_blkaddr = BLKADDR_NIX1; + pfvf->nix_rx_intf = NIX_INTFX_RX(1); + pfvf->nix_tx_intf = NIX_INTFX_TX(1); + break; + case BLKADDR_NIX0: + default: + pfvf->nix_blkaddr = BLKADDR_NIX0; + pfvf->nix_rx_intf = NIX_INTFX_RX(0); + pfvf->nix_tx_intf = NIX_INTFX_TX(0); + break; + } + + return pfvf->nix_blkaddr; +} + +static int rvu_get_attach_blkaddr(struct rvu *rvu, int blktype, + u16 pcifunc, struct rsrc_attach *attach) +{ + int blkaddr; + + switch (blktype) { + case BLKTYPE_NIX: + blkaddr = rvu_get_nix_blkaddr(rvu, pcifunc); + break; + case BLKTYPE_CPT: + if (attach->hdr.ver < RVU_MULTI_BLK_VER) + return rvu_get_blkaddr(rvu, blktype, 0); + blkaddr = attach->cpt_blkaddr ? attach->cpt_blkaddr : + BLKADDR_CPT0; + if (blkaddr != BLKADDR_CPT0 && blkaddr != BLKADDR_CPT1) + return -ENODEV; + break; + default: + return rvu_get_blkaddr(rvu, blktype, 0); + } + + if (is_block_implemented(rvu->hw, blkaddr)) + return blkaddr; + + return -ENODEV; +} + +static void rvu_attach_block(struct rvu *rvu, int pcifunc, int blktype, + int num_lfs, struct rsrc_attach *attach) +{ + struct rvu_pfvf *pfvf = rvu_get_pfvf(rvu, pcifunc); + struct rvu_hwinfo *hw = rvu->hw; + struct rvu_block *block; + int slot, lf; + int blkaddr; + u64 cfg; + + if (!num_lfs) + return; + + blkaddr = rvu_get_attach_blkaddr(rvu, blktype, pcifunc, attach); + if (blkaddr < 0) + return; + + block = &hw->block[blkaddr]; + if (!block->lf.bmap) + return; + + for (slot = 0; slot < num_lfs; slot++) { + /* Allocate the resource */ + lf = rvu_alloc_rsrc(&block->lf); + if (lf < 0) + return; + + cfg = (1ULL << 63) | (pcifunc << 8) | slot; + rvu_write64(rvu, blkaddr, block->lfcfg_reg | + (lf << block->lfshift), cfg); + rvu_update_rsrc_map(rvu, pfvf, block, + pcifunc, lf, true); + + /* Set start MSIX vector for this LF within this PF/VF */ + rvu_set_msix_offset(rvu, pfvf, block, lf); + } +} + +static int rvu_check_rsrc_availability(struct rvu *rvu, + struct rsrc_attach *req, u16 pcifunc) +{ + struct rvu_pfvf *pfvf = rvu_get_pfvf(rvu, pcifunc); + int free_lfs, mappedlfs, blkaddr; + struct rvu_hwinfo *hw = rvu->hw; + struct rvu_block *block; + + /* Only one NPA LF can be attached */ + if (req->npalf && !is_blktype_attached(pfvf, BLKTYPE_NPA)) { + block = &hw->block[BLKADDR_NPA]; + free_lfs = rvu_rsrc_free_count(&block->lf); + if (!free_lfs) + goto fail; + } else if (req->npalf) { + dev_err(&rvu->pdev->dev, + "Func 0x%x: Invalid req, already has NPA\n", + pcifunc); + return -EINVAL; + } + + /* Only one NIX LF can be attached */ + if (req->nixlf && !is_blktype_attached(pfvf, BLKTYPE_NIX)) { + blkaddr = rvu_get_attach_blkaddr(rvu, BLKTYPE_NIX, + pcifunc, req); + if (blkaddr < 0) + return blkaddr; + block = &hw->block[blkaddr]; + free_lfs = rvu_rsrc_free_count(&block->lf); + if (!free_lfs) + goto fail; + } else if (req->nixlf) { + dev_err(&rvu->pdev->dev, + "Func 0x%x: Invalid req, already has NIX\n", + pcifunc); + return -EINVAL; + } + + if (req->sso) { + block = &hw->block[BLKADDR_SSO]; + /* Is request within limits ? */ + if (req->sso > block->lf.max) { + dev_err(&rvu->pdev->dev, + "Func 0x%x: Invalid SSO req, %d > max %d\n", + pcifunc, req->sso, block->lf.max); + return -EINVAL; + } + mappedlfs = rvu_get_rsrc_mapcount(pfvf, block->addr); + free_lfs = rvu_rsrc_free_count(&block->lf); + /* Check if additional resources are available */ + if (req->sso > mappedlfs && + ((req->sso - mappedlfs) > free_lfs)) + goto fail; + } + + if (req->ssow) { + block = &hw->block[BLKADDR_SSOW]; + if (req->ssow > block->lf.max) { + dev_err(&rvu->pdev->dev, + "Func 0x%x: Invalid SSOW req, %d > max %d\n", + pcifunc, req->sso, block->lf.max); + return -EINVAL; + } + mappedlfs = rvu_get_rsrc_mapcount(pfvf, block->addr); + free_lfs = rvu_rsrc_free_count(&block->lf); + if (req->ssow > mappedlfs && + ((req->ssow - mappedlfs) > free_lfs)) + goto fail; + } + + if (req->timlfs) { + block = &hw->block[BLKADDR_TIM]; + if (req->timlfs > block->lf.max) { + dev_err(&rvu->pdev->dev, + "Func 0x%x: Invalid TIMLF req, %d > max %d\n", + pcifunc, req->timlfs, block->lf.max); + return -EINVAL; + } + mappedlfs = rvu_get_rsrc_mapcount(pfvf, block->addr); + free_lfs = rvu_rsrc_free_count(&block->lf); + if (req->timlfs > mappedlfs && + ((req->timlfs - mappedlfs) > free_lfs)) + goto fail; + } + + if (req->cptlfs) { + blkaddr = rvu_get_attach_blkaddr(rvu, BLKTYPE_CPT, + pcifunc, req); + if (blkaddr < 0) + return blkaddr; + block = &hw->block[blkaddr]; + if (req->cptlfs > block->lf.max) { + dev_err(&rvu->pdev->dev, + "Func 0x%x: Invalid CPTLF req, %d > max %d\n", + pcifunc, req->cptlfs, block->lf.max); + return -EINVAL; + } + mappedlfs = rvu_get_rsrc_mapcount(pfvf, block->addr); + free_lfs = rvu_rsrc_free_count(&block->lf); + if (req->cptlfs > mappedlfs && + ((req->cptlfs - mappedlfs) > free_lfs)) + goto fail; + } + + return 0; + +fail: + dev_info(rvu->dev, "Request for %s failed\n", block->name); + return -ENOSPC; +} + +static bool rvu_attach_from_same_block(struct rvu *rvu, int blktype, + struct rsrc_attach *attach) +{ + int blkaddr, num_lfs; + + blkaddr = rvu_get_attach_blkaddr(rvu, blktype, + attach->hdr.pcifunc, attach); + if (blkaddr < 0) + return false; + + num_lfs = rvu_get_rsrc_mapcount(rvu_get_pfvf(rvu, attach->hdr.pcifunc), + blkaddr); + /* Requester already has LFs from given block ? */ + return !!num_lfs; +} + +int rvu_mbox_handler_attach_resources(struct rvu *rvu, + struct rsrc_attach *attach, + struct msg_rsp *rsp) +{ + u16 pcifunc = attach->hdr.pcifunc; + int err; + + /* If first request, detach all existing attached resources */ + if (!attach->modify) + rvu_detach_rsrcs(rvu, NULL, pcifunc); + + mutex_lock(&rvu->rsrc_lock); + + /* Check if the request can be accommodated */ + err = rvu_check_rsrc_availability(rvu, attach, pcifunc); + if (err) + goto exit; + + /* Now attach the requested resources */ + if (attach->npalf) + rvu_attach_block(rvu, pcifunc, BLKTYPE_NPA, 1, attach); + + if (attach->nixlf) + rvu_attach_block(rvu, pcifunc, BLKTYPE_NIX, 1, attach); + + if (attach->sso) { + /* RVU func doesn't know which exact LF or slot is attached + * to it, it always sees as slot 0,1,2. So for a 'modify' + * request, simply detach all existing attached LFs/slots + * and attach a fresh. + */ + if (attach->modify) + rvu_detach_block(rvu, pcifunc, BLKTYPE_SSO); + rvu_attach_block(rvu, pcifunc, BLKTYPE_SSO, + attach->sso, attach); + } + + if (attach->ssow) { + if (attach->modify) + rvu_detach_block(rvu, pcifunc, BLKTYPE_SSOW); + rvu_attach_block(rvu, pcifunc, BLKTYPE_SSOW, + attach->ssow, attach); + } + + if (attach->timlfs) { + if (attach->modify) + rvu_detach_block(rvu, pcifunc, BLKTYPE_TIM); + rvu_attach_block(rvu, pcifunc, BLKTYPE_TIM, + attach->timlfs, attach); + } + + if (attach->cptlfs) { + if (attach->modify && + rvu_attach_from_same_block(rvu, BLKTYPE_CPT, attach)) + rvu_detach_block(rvu, pcifunc, BLKTYPE_CPT); + rvu_attach_block(rvu, pcifunc, BLKTYPE_CPT, + attach->cptlfs, attach); + } + +exit: + mutex_unlock(&rvu->rsrc_lock); + return err; +} + +static u16 rvu_get_msix_offset(struct rvu *rvu, struct rvu_pfvf *pfvf, + int blkaddr, int lf) +{ + u16 vec; + + if (lf < 0) + return MSIX_VECTOR_INVALID; + + for (vec = 0; vec < pfvf->msix.max; vec++) { + if (pfvf->msix_lfmap[vec] == MSIX_BLKLF(blkaddr, lf)) + return vec; + } + return MSIX_VECTOR_INVALID; +} + +static void rvu_set_msix_offset(struct rvu *rvu, struct rvu_pfvf *pfvf, + struct rvu_block *block, int lf) +{ + u16 nvecs, vec, offset; + u64 cfg; + + cfg = rvu_read64(rvu, block->addr, block->msixcfg_reg | + (lf << block->lfshift)); + nvecs = (cfg >> 12) & 0xFF; + + /* Check and alloc MSIX vectors, must be contiguous */ + if (!rvu_rsrc_check_contig(&pfvf->msix, nvecs)) + return; + + offset = rvu_alloc_rsrc_contig(&pfvf->msix, nvecs); + + /* Config MSIX offset in LF */ + rvu_write64(rvu, block->addr, block->msixcfg_reg | + (lf << block->lfshift), (cfg & ~0x7FFULL) | offset); + + /* Update the bitmap as well */ + for (vec = 0; vec < nvecs; vec++) + pfvf->msix_lfmap[offset + vec] = MSIX_BLKLF(block->addr, lf); +} + +static void rvu_clear_msix_offset(struct rvu *rvu, struct rvu_pfvf *pfvf, + struct rvu_block *block, int lf) +{ + u16 nvecs, vec, offset; + u64 cfg; + + cfg = rvu_read64(rvu, block->addr, block->msixcfg_reg | + (lf << block->lfshift)); + nvecs = (cfg >> 12) & 0xFF; + + /* Clear MSIX offset in LF */ + rvu_write64(rvu, block->addr, block->msixcfg_reg | + (lf << block->lfshift), cfg & ~0x7FFULL); + + offset = rvu_get_msix_offset(rvu, pfvf, block->addr, lf); + + /* Update the mapping */ + for (vec = 0; vec < nvecs; vec++) + pfvf->msix_lfmap[offset + vec] = 0; + + /* Free the same in MSIX bitmap */ + rvu_free_rsrc_contig(&pfvf->msix, nvecs, offset); +} + +int rvu_mbox_handler_msix_offset(struct rvu *rvu, struct msg_req *req, + struct msix_offset_rsp *rsp) +{ + struct rvu_hwinfo *hw = rvu->hw; + u16 pcifunc = req->hdr.pcifunc; + struct rvu_pfvf *pfvf; + int lf, slot, blkaddr; + + pfvf = rvu_get_pfvf(rvu, pcifunc); + if (!pfvf->msix.bmap) + return 0; + + /* Set MSIX offsets for each block's LFs attached to this PF/VF */ + lf = rvu_get_lf(rvu, &hw->block[BLKADDR_NPA], pcifunc, 0); + rsp->npa_msixoff = rvu_get_msix_offset(rvu, pfvf, BLKADDR_NPA, lf); + + /* Get BLKADDR from which LFs are attached to pcifunc */ + blkaddr = rvu_get_blkaddr(rvu, BLKTYPE_NIX, pcifunc); + if (blkaddr < 0) { + rsp->nix_msixoff = MSIX_VECTOR_INVALID; + } else { + lf = rvu_get_lf(rvu, &hw->block[blkaddr], pcifunc, 0); + rsp->nix_msixoff = rvu_get_msix_offset(rvu, pfvf, blkaddr, lf); + } + + rsp->sso = pfvf->sso; + for (slot = 0; slot < rsp->sso; slot++) { + lf = rvu_get_lf(rvu, &hw->block[BLKADDR_SSO], pcifunc, slot); + rsp->sso_msixoff[slot] = + rvu_get_msix_offset(rvu, pfvf, BLKADDR_SSO, lf); + } + + rsp->ssow = pfvf->ssow; + for (slot = 0; slot < rsp->ssow; slot++) { + lf = rvu_get_lf(rvu, &hw->block[BLKADDR_SSOW], pcifunc, slot); + rsp->ssow_msixoff[slot] = + rvu_get_msix_offset(rvu, pfvf, BLKADDR_SSOW, lf); + } + + rsp->timlfs = pfvf->timlfs; + for (slot = 0; slot < rsp->timlfs; slot++) { + lf = rvu_get_lf(rvu, &hw->block[BLKADDR_TIM], pcifunc, slot); + rsp->timlf_msixoff[slot] = + rvu_get_msix_offset(rvu, pfvf, BLKADDR_TIM, lf); + } + + rsp->cptlfs = pfvf->cptlfs; + for (slot = 0; slot < rsp->cptlfs; slot++) { + lf = rvu_get_lf(rvu, &hw->block[BLKADDR_CPT0], pcifunc, slot); + rsp->cptlf_msixoff[slot] = + rvu_get_msix_offset(rvu, pfvf, BLKADDR_CPT0, lf); + } + + rsp->cpt1_lfs = pfvf->cpt1_lfs; + for (slot = 0; slot < rsp->cpt1_lfs; slot++) { + lf = rvu_get_lf(rvu, &hw->block[BLKADDR_CPT1], pcifunc, slot); + rsp->cpt1_lf_msixoff[slot] = + rvu_get_msix_offset(rvu, pfvf, BLKADDR_CPT1, lf); + } + + return 0; +} + +int rvu_mbox_handler_free_rsrc_cnt(struct rvu *rvu, struct msg_req *req, + struct free_rsrcs_rsp *rsp) +{ + struct rvu_hwinfo *hw = rvu->hw; + struct rvu_block *block; + struct nix_txsch *txsch; + struct nix_hw *nix_hw; + + mutex_lock(&rvu->rsrc_lock); + + block = &hw->block[BLKADDR_NPA]; + rsp->npa = rvu_rsrc_free_count(&block->lf); + + block = &hw->block[BLKADDR_NIX0]; + rsp->nix = rvu_rsrc_free_count(&block->lf); + + block = &hw->block[BLKADDR_NIX1]; + rsp->nix1 = rvu_rsrc_free_count(&block->lf); + + block = &hw->block[BLKADDR_SSO]; + rsp->sso = rvu_rsrc_free_count(&block->lf); + + block = &hw->block[BLKADDR_SSOW]; + rsp->ssow = rvu_rsrc_free_count(&block->lf); + + block = &hw->block[BLKADDR_TIM]; + rsp->tim = rvu_rsrc_free_count(&block->lf); + + block = &hw->block[BLKADDR_CPT0]; + rsp->cpt = rvu_rsrc_free_count(&block->lf); + + block = &hw->block[BLKADDR_CPT1]; + rsp->cpt1 = rvu_rsrc_free_count(&block->lf); + + if (rvu->hw->cap.nix_fixed_txschq_mapping) { + rsp->schq[NIX_TXSCH_LVL_SMQ] = 1; + rsp->schq[NIX_TXSCH_LVL_TL4] = 1; + rsp->schq[NIX_TXSCH_LVL_TL3] = 1; + rsp->schq[NIX_TXSCH_LVL_TL2] = 1; + /* NIX1 */ + if (!is_block_implemented(rvu->hw, BLKADDR_NIX1)) + goto out; + rsp->schq_nix1[NIX_TXSCH_LVL_SMQ] = 1; + rsp->schq_nix1[NIX_TXSCH_LVL_TL4] = 1; + rsp->schq_nix1[NIX_TXSCH_LVL_TL3] = 1; + rsp->schq_nix1[NIX_TXSCH_LVL_TL2] = 1; + } else { + nix_hw = get_nix_hw(hw, BLKADDR_NIX0); + txsch = &nix_hw->txsch[NIX_TXSCH_LVL_SMQ]; + rsp->schq[NIX_TXSCH_LVL_SMQ] = + rvu_rsrc_free_count(&txsch->schq); + + txsch = &nix_hw->txsch[NIX_TXSCH_LVL_TL4]; + rsp->schq[NIX_TXSCH_LVL_TL4] = + rvu_rsrc_free_count(&txsch->schq); + + txsch = &nix_hw->txsch[NIX_TXSCH_LVL_TL3]; + rsp->schq[NIX_TXSCH_LVL_TL3] = + rvu_rsrc_free_count(&txsch->schq); + + txsch = &nix_hw->txsch[NIX_TXSCH_LVL_TL2]; + rsp->schq[NIX_TXSCH_LVL_TL2] = + rvu_rsrc_free_count(&txsch->schq); + + if (!is_block_implemented(rvu->hw, BLKADDR_NIX1)) + goto out; + + nix_hw = get_nix_hw(hw, BLKADDR_NIX1); + txsch = &nix_hw->txsch[NIX_TXSCH_LVL_SMQ]; + rsp->schq_nix1[NIX_TXSCH_LVL_SMQ] = + rvu_rsrc_free_count(&txsch->schq); + + txsch = &nix_hw->txsch[NIX_TXSCH_LVL_TL4]; + rsp->schq_nix1[NIX_TXSCH_LVL_TL4] = + rvu_rsrc_free_count(&txsch->schq); + + txsch = &nix_hw->txsch[NIX_TXSCH_LVL_TL3]; + rsp->schq_nix1[NIX_TXSCH_LVL_TL3] = + rvu_rsrc_free_count(&txsch->schq); + + txsch = &nix_hw->txsch[NIX_TXSCH_LVL_TL2]; + rsp->schq_nix1[NIX_TXSCH_LVL_TL2] = + rvu_rsrc_free_count(&txsch->schq); + } + + rsp->schq_nix1[NIX_TXSCH_LVL_TL1] = 1; +out: + rsp->schq[NIX_TXSCH_LVL_TL1] = 1; + mutex_unlock(&rvu->rsrc_lock); + + return 0; +} + +int rvu_mbox_handler_vf_flr(struct rvu *rvu, struct msg_req *req, + struct msg_rsp *rsp) +{ + u16 pcifunc = req->hdr.pcifunc; + u16 vf, numvfs; + u64 cfg; + + vf = pcifunc & RVU_PFVF_FUNC_MASK; + cfg = rvu_read64(rvu, BLKADDR_RVUM, + RVU_PRIV_PFX_CFG(rvu_get_pf(pcifunc))); + numvfs = (cfg >> 12) & 0xFF; + + if (vf && vf <= numvfs) + __rvu_flr_handler(rvu, pcifunc); + else + return RVU_INVALID_VF_ID; + + return 0; +} + +int rvu_mbox_handler_get_hw_cap(struct rvu *rvu, struct msg_req *req, + struct get_hw_cap_rsp *rsp) +{ + struct rvu_hwinfo *hw = rvu->hw; + + rsp->nix_fixed_txschq_mapping = hw->cap.nix_fixed_txschq_mapping; + rsp->nix_shaping = hw->cap.nix_shaping; + rsp->npc_hash_extract = hw->cap.npc_hash_extract; + + return 0; +} + +int rvu_mbox_handler_set_vf_perm(struct rvu *rvu, struct set_vf_perm *req, + struct msg_rsp *rsp) +{ + struct rvu_hwinfo *hw = rvu->hw; + u16 pcifunc = req->hdr.pcifunc; + struct rvu_pfvf *pfvf; + int blkaddr, nixlf; + u16 target; + + /* Only PF can add VF permissions */ + if ((pcifunc & RVU_PFVF_FUNC_MASK) || is_afvf(pcifunc)) + return -EOPNOTSUPP; + + target = (pcifunc & ~RVU_PFVF_FUNC_MASK) | (req->vf + 1); + pfvf = rvu_get_pfvf(rvu, target); + + if (req->flags & RESET_VF_PERM) { + pfvf->flags &= RVU_CLEAR_VF_PERM; + } else if (test_bit(PF_SET_VF_TRUSTED, &pfvf->flags) ^ + (req->flags & VF_TRUSTED)) { + change_bit(PF_SET_VF_TRUSTED, &pfvf->flags); + /* disable multicast and promisc entries */ + if (!test_bit(PF_SET_VF_TRUSTED, &pfvf->flags)) { + blkaddr = rvu_get_blkaddr(rvu, BLKTYPE_NIX, target); + if (blkaddr < 0) + return 0; + nixlf = rvu_get_lf(rvu, &hw->block[blkaddr], + target, 0); + if (nixlf < 0) + return 0; + npc_enadis_default_mce_entry(rvu, target, nixlf, + NIXLF_ALLMULTI_ENTRY, + false); + npc_enadis_default_mce_entry(rvu, target, nixlf, + NIXLF_PROMISC_ENTRY, + false); + } + } + + return 0; +} + +static int rvu_process_mbox_msg(struct otx2_mbox *mbox, int devid, + struct mbox_msghdr *req) +{ + struct rvu *rvu = pci_get_drvdata(mbox->pdev); + + /* Check if valid, if not reply with a invalid msg */ + if (req->sig != OTX2_MBOX_REQ_SIG) + goto bad_message; + + switch (req->id) { +#define M(_name, _id, _fn_name, _req_type, _rsp_type) \ + case _id: { \ + struct _rsp_type *rsp; \ + int err; \ + \ + rsp = (struct _rsp_type *)otx2_mbox_alloc_msg( \ + mbox, devid, \ + sizeof(struct _rsp_type)); \ + /* some handlers should complete even if reply */ \ + /* could not be allocated */ \ + if (!rsp && \ + _id != MBOX_MSG_DETACH_RESOURCES && \ + _id != MBOX_MSG_NIX_TXSCH_FREE && \ + _id != MBOX_MSG_VF_FLR) \ + return -ENOMEM; \ + if (rsp) { \ + rsp->hdr.id = _id; \ + rsp->hdr.sig = OTX2_MBOX_RSP_SIG; \ + rsp->hdr.pcifunc = req->pcifunc; \ + rsp->hdr.rc = 0; \ + } \ + \ + err = rvu_mbox_handler_ ## _fn_name(rvu, \ + (struct _req_type *)req, \ + rsp); \ + if (rsp && err) \ + rsp->hdr.rc = err; \ + \ + trace_otx2_msg_process(mbox->pdev, _id, err); \ + return rsp ? err : -ENOMEM; \ + } +MBOX_MESSAGES +#undef M + +bad_message: + default: + otx2_reply_invalid_msg(mbox, devid, req->pcifunc, req->id); + return -ENODEV; + } +} + +static void __rvu_mbox_handler(struct rvu_work *mwork, int type) +{ + struct rvu *rvu = mwork->rvu; + int offset, err, id, devid; + struct otx2_mbox_dev *mdev; + struct mbox_hdr *req_hdr; + struct mbox_msghdr *msg; + struct mbox_wq_info *mw; + struct otx2_mbox *mbox; + + switch (type) { + case TYPE_AFPF: + mw = &rvu->afpf_wq_info; + break; + case TYPE_AFVF: + mw = &rvu->afvf_wq_info; + break; + default: + return; + } + + devid = mwork - mw->mbox_wrk; + mbox = &mw->mbox; + mdev = &mbox->dev[devid]; + + /* Process received mbox messages */ + req_hdr = mdev->mbase + mbox->rx_start; + if (mw->mbox_wrk[devid].num_msgs == 0) + return; + + offset = mbox->rx_start + ALIGN(sizeof(*req_hdr), MBOX_MSG_ALIGN); + + for (id = 0; id < mw->mbox_wrk[devid].num_msgs; id++) { + msg = mdev->mbase + offset; + + /* Set which PF/VF sent this message based on mbox IRQ */ + switch (type) { + case TYPE_AFPF: + msg->pcifunc &= + ~(RVU_PFVF_PF_MASK << RVU_PFVF_PF_SHIFT); + msg->pcifunc |= (devid << RVU_PFVF_PF_SHIFT); + break; + case TYPE_AFVF: + msg->pcifunc &= + ~(RVU_PFVF_FUNC_MASK << RVU_PFVF_FUNC_SHIFT); + msg->pcifunc |= (devid << RVU_PFVF_FUNC_SHIFT) + 1; + break; + } + + err = rvu_process_mbox_msg(mbox, devid, msg); + if (!err) { + offset = mbox->rx_start + msg->next_msgoff; + continue; + } + + if (msg->pcifunc & RVU_PFVF_FUNC_MASK) + dev_warn(rvu->dev, "Error %d when processing message %s (0x%x) from PF%d:VF%d\n", + err, otx2_mbox_id2name(msg->id), + msg->id, rvu_get_pf(msg->pcifunc), + (msg->pcifunc & RVU_PFVF_FUNC_MASK) - 1); + else + dev_warn(rvu->dev, "Error %d when processing message %s (0x%x) from PF%d\n", + err, otx2_mbox_id2name(msg->id), + msg->id, devid); + } + mw->mbox_wrk[devid].num_msgs = 0; + + /* Send mbox responses to VF/PF */ + otx2_mbox_msg_send(mbox, devid); +} + +static inline void rvu_afpf_mbox_handler(struct work_struct *work) +{ + struct rvu_work *mwork = container_of(work, struct rvu_work, work); + + __rvu_mbox_handler(mwork, TYPE_AFPF); +} + +static inline void rvu_afvf_mbox_handler(struct work_struct *work) +{ + struct rvu_work *mwork = container_of(work, struct rvu_work, work); + + __rvu_mbox_handler(mwork, TYPE_AFVF); +} + +static void __rvu_mbox_up_handler(struct rvu_work *mwork, int type) +{ + struct rvu *rvu = mwork->rvu; + struct otx2_mbox_dev *mdev; + struct mbox_hdr *rsp_hdr; + struct mbox_msghdr *msg; + struct mbox_wq_info *mw; + struct otx2_mbox *mbox; + int offset, id, devid; + + switch (type) { + case TYPE_AFPF: + mw = &rvu->afpf_wq_info; + break; + case TYPE_AFVF: + mw = &rvu->afvf_wq_info; + break; + default: + return; + } + + devid = mwork - mw->mbox_wrk_up; + mbox = &mw->mbox_up; + mdev = &mbox->dev[devid]; + + rsp_hdr = mdev->mbase + mbox->rx_start; + if (mw->mbox_wrk_up[devid].up_num_msgs == 0) { + dev_warn(rvu->dev, "mbox up handler: num_msgs = 0\n"); + return; + } + + offset = mbox->rx_start + ALIGN(sizeof(*rsp_hdr), MBOX_MSG_ALIGN); + + for (id = 0; id < mw->mbox_wrk_up[devid].up_num_msgs; id++) { + msg = mdev->mbase + offset; + + if (msg->id >= MBOX_MSG_MAX) { + dev_err(rvu->dev, + "Mbox msg with unknown ID 0x%x\n", msg->id); + goto end; + } + + if (msg->sig != OTX2_MBOX_RSP_SIG) { + dev_err(rvu->dev, + "Mbox msg with wrong signature %x, ID 0x%x\n", + msg->sig, msg->id); + goto end; + } + + switch (msg->id) { + case MBOX_MSG_CGX_LINK_EVENT: + break; + default: + if (msg->rc) + dev_err(rvu->dev, + "Mbox msg response has err %d, ID 0x%x\n", + msg->rc, msg->id); + break; + } +end: + offset = mbox->rx_start + msg->next_msgoff; + mdev->msgs_acked++; + } + mw->mbox_wrk_up[devid].up_num_msgs = 0; + + otx2_mbox_reset(mbox, devid); +} + +static inline void rvu_afpf_mbox_up_handler(struct work_struct *work) +{ + struct rvu_work *mwork = container_of(work, struct rvu_work, work); + + __rvu_mbox_up_handler(mwork, TYPE_AFPF); +} + +static inline void rvu_afvf_mbox_up_handler(struct work_struct *work) +{ + struct rvu_work *mwork = container_of(work, struct rvu_work, work); + + __rvu_mbox_up_handler(mwork, TYPE_AFVF); +} + +static int rvu_get_mbox_regions(struct rvu *rvu, void **mbox_addr, + int num, int type, unsigned long *pf_bmap) +{ + struct rvu_hwinfo *hw = rvu->hw; + int region; + u64 bar4; + + /* For cn10k platform VF mailbox regions of a PF follows after the + * PF <-> AF mailbox region. Whereas for Octeontx2 it is read from + * RVU_PF_VF_BAR4_ADDR register. + */ + if (type == TYPE_AFVF) { + for (region = 0; region < num; region++) { + if (!test_bit(region, pf_bmap)) + continue; + + if (hw->cap.per_pf_mbox_regs) { + bar4 = rvu_read64(rvu, BLKADDR_RVUM, + RVU_AF_PFX_BAR4_ADDR(0)) + + MBOX_SIZE; + bar4 += region * MBOX_SIZE; + } else { + bar4 = rvupf_read64(rvu, RVU_PF_VF_BAR4_ADDR); + bar4 += region * MBOX_SIZE; + } + mbox_addr[region] = (void *)ioremap_wc(bar4, MBOX_SIZE); + if (!mbox_addr[region]) + goto error; + } + return 0; + } + + /* For cn10k platform AF <-> PF mailbox region of a PF is read from per + * PF registers. Whereas for Octeontx2 it is read from + * RVU_AF_PF_BAR4_ADDR register. + */ + for (region = 0; region < num; region++) { + if (!test_bit(region, pf_bmap)) + continue; + + if (hw->cap.per_pf_mbox_regs) { + bar4 = rvu_read64(rvu, BLKADDR_RVUM, + RVU_AF_PFX_BAR4_ADDR(region)); + } else { + bar4 = rvu_read64(rvu, BLKADDR_RVUM, + RVU_AF_PF_BAR4_ADDR); + bar4 += region * MBOX_SIZE; + } + mbox_addr[region] = (void *)ioremap_wc(bar4, MBOX_SIZE); + if (!mbox_addr[region]) + goto error; + } + return 0; + +error: + while (region--) + iounmap((void __iomem *)mbox_addr[region]); + return -ENOMEM; +} + +static int rvu_mbox_init(struct rvu *rvu, struct mbox_wq_info *mw, + int type, int num, + void (mbox_handler)(struct work_struct *), + void (mbox_up_handler)(struct work_struct *)) +{ + int err = -EINVAL, i, dir, dir_up; + void __iomem *reg_base; + struct rvu_work *mwork; + unsigned long *pf_bmap; + void **mbox_regions; + const char *name; + u64 cfg; + + pf_bmap = bitmap_zalloc(num, GFP_KERNEL); + if (!pf_bmap) + return -ENOMEM; + + /* RVU VFs */ + if (type == TYPE_AFVF) + bitmap_set(pf_bmap, 0, num); + + if (type == TYPE_AFPF) { + /* Mark enabled PFs in bitmap */ + for (i = 0; i < num; i++) { + cfg = rvu_read64(rvu, BLKADDR_RVUM, RVU_PRIV_PFX_CFG(i)); + if (cfg & BIT_ULL(20)) + set_bit(i, pf_bmap); + } + } + + mbox_regions = kcalloc(num, sizeof(void *), GFP_KERNEL); + if (!mbox_regions) { + err = -ENOMEM; + goto free_bitmap; + } + + switch (type) { + case TYPE_AFPF: + name = "rvu_afpf_mailbox"; + dir = MBOX_DIR_AFPF; + dir_up = MBOX_DIR_AFPF_UP; + reg_base = rvu->afreg_base; + err = rvu_get_mbox_regions(rvu, mbox_regions, num, TYPE_AFPF, pf_bmap); + if (err) + goto free_regions; + break; + case TYPE_AFVF: + name = "rvu_afvf_mailbox"; + dir = MBOX_DIR_PFVF; + dir_up = MBOX_DIR_PFVF_UP; + reg_base = rvu->pfreg_base; + err = rvu_get_mbox_regions(rvu, mbox_regions, num, TYPE_AFVF, pf_bmap); + if (err) + goto free_regions; + break; + default: + goto free_regions; + } + + mw->mbox_wq = alloc_workqueue(name, + WQ_UNBOUND | WQ_HIGHPRI | WQ_MEM_RECLAIM, + num); + if (!mw->mbox_wq) { + err = -ENOMEM; + goto unmap_regions; + } + + mw->mbox_wrk = devm_kcalloc(rvu->dev, num, + sizeof(struct rvu_work), GFP_KERNEL); + if (!mw->mbox_wrk) { + err = -ENOMEM; + goto exit; + } + + mw->mbox_wrk_up = devm_kcalloc(rvu->dev, num, + sizeof(struct rvu_work), GFP_KERNEL); + if (!mw->mbox_wrk_up) { + err = -ENOMEM; + goto exit; + } + + err = otx2_mbox_regions_init(&mw->mbox, mbox_regions, rvu->pdev, + reg_base, dir, num, pf_bmap); + if (err) + goto exit; + + err = otx2_mbox_regions_init(&mw->mbox_up, mbox_regions, rvu->pdev, + reg_base, dir_up, num, pf_bmap); + if (err) + goto exit; + + for (i = 0; i < num; i++) { + if (!test_bit(i, pf_bmap)) + continue; + + mwork = &mw->mbox_wrk[i]; + mwork->rvu = rvu; + INIT_WORK(&mwork->work, mbox_handler); + + mwork = &mw->mbox_wrk_up[i]; + mwork->rvu = rvu; + INIT_WORK(&mwork->work, mbox_up_handler); + } + goto free_regions; + +exit: + destroy_workqueue(mw->mbox_wq); +unmap_regions: + while (num--) + iounmap((void __iomem *)mbox_regions[num]); +free_regions: + kfree(mbox_regions); +free_bitmap: + bitmap_free(pf_bmap); + return err; +} + +static void rvu_mbox_destroy(struct mbox_wq_info *mw) +{ + struct otx2_mbox *mbox = &mw->mbox; + struct otx2_mbox_dev *mdev; + int devid; + + if (mw->mbox_wq) { + destroy_workqueue(mw->mbox_wq); + mw->mbox_wq = NULL; + } + + for (devid = 0; devid < mbox->ndevs; devid++) { + mdev = &mbox->dev[devid]; + if (mdev->hwbase) + iounmap((void __iomem *)mdev->hwbase); + } + + otx2_mbox_destroy(&mw->mbox); + otx2_mbox_destroy(&mw->mbox_up); +} + +static void rvu_queue_work(struct mbox_wq_info *mw, int first, + int mdevs, u64 intr) +{ + struct otx2_mbox_dev *mdev; + struct otx2_mbox *mbox; + struct mbox_hdr *hdr; + int i; + + for (i = first; i < mdevs; i++) { + /* start from 0 */ + if (!(intr & BIT_ULL(i - first))) + continue; + + mbox = &mw->mbox; + mdev = &mbox->dev[i]; + hdr = mdev->mbase + mbox->rx_start; + + /*The hdr->num_msgs is set to zero immediately in the interrupt + * handler to ensure that it holds a correct value next time + * when the interrupt handler is called. + * pf->mbox.num_msgs holds the data for use in pfaf_mbox_handler + * pf>mbox.up_num_msgs holds the data for use in + * pfaf_mbox_up_handler. + */ + + if (hdr->num_msgs) { + mw->mbox_wrk[i].num_msgs = hdr->num_msgs; + hdr->num_msgs = 0; + queue_work(mw->mbox_wq, &mw->mbox_wrk[i].work); + } + mbox = &mw->mbox_up; + mdev = &mbox->dev[i]; + hdr = mdev->mbase + mbox->rx_start; + if (hdr->num_msgs) { + mw->mbox_wrk_up[i].up_num_msgs = hdr->num_msgs; + hdr->num_msgs = 0; + queue_work(mw->mbox_wq, &mw->mbox_wrk_up[i].work); + } + } +} + +static irqreturn_t rvu_mbox_intr_handler(int irq, void *rvu_irq) +{ + struct rvu *rvu = (struct rvu *)rvu_irq; + int vfs = rvu->vfs; + u64 intr; + + intr = rvu_read64(rvu, BLKADDR_RVUM, RVU_AF_PFAF_MBOX_INT); + /* Clear interrupts */ + rvu_write64(rvu, BLKADDR_RVUM, RVU_AF_PFAF_MBOX_INT, intr); + if (intr) + trace_otx2_msg_interrupt(rvu->pdev, "PF(s) to AF", intr); + + /* Sync with mbox memory region */ + rmb(); + + rvu_queue_work(&rvu->afpf_wq_info, 0, rvu->hw->total_pfs, intr); + + /* Handle VF interrupts */ + if (vfs > 64) { + intr = rvupf_read64(rvu, RVU_PF_VFPF_MBOX_INTX(1)); + rvupf_write64(rvu, RVU_PF_VFPF_MBOX_INTX(1), intr); + + rvu_queue_work(&rvu->afvf_wq_info, 64, vfs, intr); + vfs -= 64; + } + + intr = rvupf_read64(rvu, RVU_PF_VFPF_MBOX_INTX(0)); + rvupf_write64(rvu, RVU_PF_VFPF_MBOX_INTX(0), intr); + if (intr) + trace_otx2_msg_interrupt(rvu->pdev, "VF(s) to AF", intr); + + rvu_queue_work(&rvu->afvf_wq_info, 0, vfs, intr); + + return IRQ_HANDLED; +} + +static void rvu_enable_mbox_intr(struct rvu *rvu) +{ + struct rvu_hwinfo *hw = rvu->hw; + + /* Clear spurious irqs, if any */ + rvu_write64(rvu, BLKADDR_RVUM, + RVU_AF_PFAF_MBOX_INT, INTR_MASK(hw->total_pfs)); + + /* Enable mailbox interrupt for all PFs except PF0 i.e AF itself */ + rvu_write64(rvu, BLKADDR_RVUM, RVU_AF_PFAF_MBOX_INT_ENA_W1S, + INTR_MASK(hw->total_pfs) & ~1ULL); +} + +static void rvu_blklf_teardown(struct rvu *rvu, u16 pcifunc, u8 blkaddr) +{ + struct rvu_block *block; + int slot, lf, num_lfs; + int err; + + block = &rvu->hw->block[blkaddr]; + num_lfs = rvu_get_rsrc_mapcount(rvu_get_pfvf(rvu, pcifunc), + block->addr); + if (!num_lfs) + return; + for (slot = 0; slot < num_lfs; slot++) { + lf = rvu_get_lf(rvu, block, pcifunc, slot); + if (lf < 0) + continue; + + /* Cleanup LF and reset it */ + if (block->addr == BLKADDR_NIX0 || block->addr == BLKADDR_NIX1) + rvu_nix_lf_teardown(rvu, pcifunc, block->addr, lf); + else if (block->addr == BLKADDR_NPA) + rvu_npa_lf_teardown(rvu, pcifunc, lf); + else if ((block->addr == BLKADDR_CPT0) || + (block->addr == BLKADDR_CPT1)) + rvu_cpt_lf_teardown(rvu, pcifunc, block->addr, lf, + slot); + + err = rvu_lf_reset(rvu, block, lf); + if (err) { + dev_err(rvu->dev, "Failed to reset blkaddr %d LF%d\n", + block->addr, lf); + } + } +} + +static void __rvu_flr_handler(struct rvu *rvu, u16 pcifunc) +{ + if (rvu_npc_exact_has_match_table(rvu)) + rvu_npc_exact_reset(rvu, pcifunc); + + mutex_lock(&rvu->flr_lock); + /* Reset order should reflect inter-block dependencies: + * 1. Reset any packet/work sources (NIX, CPT, TIM) + * 2. Flush and reset SSO/SSOW + * 3. Cleanup pools (NPA) + */ + rvu_blklf_teardown(rvu, pcifunc, BLKADDR_NIX0); + rvu_blklf_teardown(rvu, pcifunc, BLKADDR_NIX1); + rvu_blklf_teardown(rvu, pcifunc, BLKADDR_CPT0); + rvu_blklf_teardown(rvu, pcifunc, BLKADDR_CPT1); + rvu_blklf_teardown(rvu, pcifunc, BLKADDR_TIM); + rvu_blklf_teardown(rvu, pcifunc, BLKADDR_SSOW); + rvu_blklf_teardown(rvu, pcifunc, BLKADDR_SSO); + rvu_blklf_teardown(rvu, pcifunc, BLKADDR_NPA); + rvu_reset_lmt_map_tbl(rvu, pcifunc); + rvu_detach_rsrcs(rvu, NULL, pcifunc); + /* In scenarios where PF/VF drivers detach NIXLF without freeing MCAM + * entries, check and free the MCAM entries explicitly to avoid leak. + * Since LF is detached use LF number as -1. + */ + rvu_npc_free_mcam_entries(rvu, pcifunc, -1); + + if (rvu->mcs_blk_cnt) + rvu_mcs_flr_handler(rvu, pcifunc); + + mutex_unlock(&rvu->flr_lock); +} + +static void rvu_afvf_flr_handler(struct rvu *rvu, int vf) +{ + int reg = 0; + + /* pcifunc = 0(PF0) | (vf + 1) */ + __rvu_flr_handler(rvu, vf + 1); + + if (vf >= 64) { + reg = 1; + vf = vf - 64; + } + + /* Signal FLR finish and enable IRQ */ + rvupf_write64(rvu, RVU_PF_VFTRPENDX(reg), BIT_ULL(vf)); + rvupf_write64(rvu, RVU_PF_VFFLR_INT_ENA_W1SX(reg), BIT_ULL(vf)); +} + +static void rvu_flr_handler(struct work_struct *work) +{ + struct rvu_work *flrwork = container_of(work, struct rvu_work, work); + struct rvu *rvu = flrwork->rvu; + u16 pcifunc, numvfs, vf; + u64 cfg; + int pf; + + pf = flrwork - rvu->flr_wrk; + if (pf >= rvu->hw->total_pfs) { + rvu_afvf_flr_handler(rvu, pf - rvu->hw->total_pfs); + return; + } + + cfg = rvu_read64(rvu, BLKADDR_RVUM, RVU_PRIV_PFX_CFG(pf)); + numvfs = (cfg >> 12) & 0xFF; + pcifunc = pf << RVU_PFVF_PF_SHIFT; + + for (vf = 0; vf < numvfs; vf++) + __rvu_flr_handler(rvu, (pcifunc | (vf + 1))); + + __rvu_flr_handler(rvu, pcifunc); + + /* Signal FLR finish */ + rvu_write64(rvu, BLKADDR_RVUM, RVU_AF_PFTRPEND, BIT_ULL(pf)); + + /* Enable interrupt */ + rvu_write64(rvu, BLKADDR_RVUM, RVU_AF_PFFLR_INT_ENA_W1S, BIT_ULL(pf)); +} + +static void rvu_afvf_queue_flr_work(struct rvu *rvu, int start_vf, int numvfs) +{ + int dev, vf, reg = 0; + u64 intr; + + if (start_vf >= 64) + reg = 1; + + intr = rvupf_read64(rvu, RVU_PF_VFFLR_INTX(reg)); + if (!intr) + return; + + for (vf = 0; vf < numvfs; vf++) { + if (!(intr & BIT_ULL(vf))) + continue; + /* Clear and disable the interrupt */ + rvupf_write64(rvu, RVU_PF_VFFLR_INTX(reg), BIT_ULL(vf)); + rvupf_write64(rvu, RVU_PF_VFFLR_INT_ENA_W1CX(reg), BIT_ULL(vf)); + + dev = vf + start_vf + rvu->hw->total_pfs; + queue_work(rvu->flr_wq, &rvu->flr_wrk[dev].work); + } +} + +static irqreturn_t rvu_flr_intr_handler(int irq, void *rvu_irq) +{ + struct rvu *rvu = (struct rvu *)rvu_irq; + u64 intr; + u8 pf; + + intr = rvu_read64(rvu, BLKADDR_RVUM, RVU_AF_PFFLR_INT); + if (!intr) + goto afvf_flr; + + for (pf = 0; pf < rvu->hw->total_pfs; pf++) { + if (intr & (1ULL << pf)) { + /* clear interrupt */ + rvu_write64(rvu, BLKADDR_RVUM, RVU_AF_PFFLR_INT, + BIT_ULL(pf)); + /* Disable the interrupt */ + rvu_write64(rvu, BLKADDR_RVUM, RVU_AF_PFFLR_INT_ENA_W1C, + BIT_ULL(pf)); + /* PF is already dead do only AF related operations */ + queue_work(rvu->flr_wq, &rvu->flr_wrk[pf].work); + } + } + +afvf_flr: + rvu_afvf_queue_flr_work(rvu, 0, 64); + if (rvu->vfs > 64) + rvu_afvf_queue_flr_work(rvu, 64, rvu->vfs - 64); + + return IRQ_HANDLED; +} + +static void rvu_me_handle_vfset(struct rvu *rvu, int idx, u64 intr) +{ + int vf; + + /* Nothing to be done here other than clearing the + * TRPEND bit. + */ + for (vf = 0; vf < 64; vf++) { + if (intr & (1ULL << vf)) { + /* clear the trpend due to ME(master enable) */ + rvupf_write64(rvu, RVU_PF_VFTRPENDX(idx), BIT_ULL(vf)); + /* clear interrupt */ + rvupf_write64(rvu, RVU_PF_VFME_INTX(idx), BIT_ULL(vf)); + } + } +} + +/* Handles ME interrupts from VFs of AF */ +static irqreturn_t rvu_me_vf_intr_handler(int irq, void *rvu_irq) +{ + struct rvu *rvu = (struct rvu *)rvu_irq; + int vfset; + u64 intr; + + intr = rvu_read64(rvu, BLKADDR_RVUM, RVU_AF_PFME_INT); + + for (vfset = 0; vfset <= 1; vfset++) { + intr = rvupf_read64(rvu, RVU_PF_VFME_INTX(vfset)); + if (intr) + rvu_me_handle_vfset(rvu, vfset, intr); + } + + return IRQ_HANDLED; +} + +/* Handles ME interrupts from PFs */ +static irqreturn_t rvu_me_pf_intr_handler(int irq, void *rvu_irq) +{ + struct rvu *rvu = (struct rvu *)rvu_irq; + u64 intr; + u8 pf; + + intr = rvu_read64(rvu, BLKADDR_RVUM, RVU_AF_PFME_INT); + + /* Nothing to be done here other than clearing the + * TRPEND bit. + */ + for (pf = 0; pf < rvu->hw->total_pfs; pf++) { + if (intr & (1ULL << pf)) { + /* clear the trpend due to ME(master enable) */ + rvu_write64(rvu, BLKADDR_RVUM, RVU_AF_PFTRPEND, + BIT_ULL(pf)); + /* clear interrupt */ + rvu_write64(rvu, BLKADDR_RVUM, RVU_AF_PFME_INT, + BIT_ULL(pf)); + } + } + + return IRQ_HANDLED; +} + +static void rvu_unregister_interrupts(struct rvu *rvu) +{ + int irq; + + rvu_cpt_unregister_interrupts(rvu); + + /* Disable the Mbox interrupt */ + rvu_write64(rvu, BLKADDR_RVUM, RVU_AF_PFAF_MBOX_INT_ENA_W1C, + INTR_MASK(rvu->hw->total_pfs) & ~1ULL); + + /* Disable the PF FLR interrupt */ + rvu_write64(rvu, BLKADDR_RVUM, RVU_AF_PFFLR_INT_ENA_W1C, + INTR_MASK(rvu->hw->total_pfs) & ~1ULL); + + /* Disable the PF ME interrupt */ + rvu_write64(rvu, BLKADDR_RVUM, RVU_AF_PFME_INT_ENA_W1C, + INTR_MASK(rvu->hw->total_pfs) & ~1ULL); + + for (irq = 0; irq < rvu->num_vec; irq++) { + if (rvu->irq_allocated[irq]) { + free_irq(pci_irq_vector(rvu->pdev, irq), rvu); + rvu->irq_allocated[irq] = false; + } + } + + pci_free_irq_vectors(rvu->pdev); + rvu->num_vec = 0; +} + +static int rvu_afvf_msix_vectors_num_ok(struct rvu *rvu) +{ + struct rvu_pfvf *pfvf = &rvu->pf[0]; + int offset; + + pfvf = &rvu->pf[0]; + offset = rvu_read64(rvu, BLKADDR_RVUM, RVU_PRIV_PFX_INT_CFG(0)) & 0x3ff; + + /* Make sure there are enough MSIX vectors configured so that + * VF interrupts can be handled. Offset equal to zero means + * that PF vectors are not configured and overlapping AF vectors. + */ + return (pfvf->msix.max >= RVU_AF_INT_VEC_CNT + RVU_PF_INT_VEC_CNT) && + offset; +} + +static int rvu_register_interrupts(struct rvu *rvu) +{ + int ret, offset, pf_vec_start; + + rvu->num_vec = pci_msix_vec_count(rvu->pdev); + + rvu->irq_name = devm_kmalloc_array(rvu->dev, rvu->num_vec, + NAME_SIZE, GFP_KERNEL); + if (!rvu->irq_name) + return -ENOMEM; + + rvu->irq_allocated = devm_kcalloc(rvu->dev, rvu->num_vec, + sizeof(bool), GFP_KERNEL); + if (!rvu->irq_allocated) + return -ENOMEM; + + /* Enable MSI-X */ + ret = pci_alloc_irq_vectors(rvu->pdev, rvu->num_vec, + rvu->num_vec, PCI_IRQ_MSIX); + if (ret < 0) { + dev_err(rvu->dev, + "RVUAF: Request for %d msix vectors failed, ret %d\n", + rvu->num_vec, ret); + return ret; + } + + /* Register mailbox interrupt handler */ + sprintf(&rvu->irq_name[RVU_AF_INT_VEC_MBOX * NAME_SIZE], "RVUAF Mbox"); + ret = request_irq(pci_irq_vector(rvu->pdev, RVU_AF_INT_VEC_MBOX), + rvu_mbox_intr_handler, 0, + &rvu->irq_name[RVU_AF_INT_VEC_MBOX * NAME_SIZE], rvu); + if (ret) { + dev_err(rvu->dev, + "RVUAF: IRQ registration failed for mbox irq\n"); + goto fail; + } + + rvu->irq_allocated[RVU_AF_INT_VEC_MBOX] = true; + + /* Enable mailbox interrupts from all PFs */ + rvu_enable_mbox_intr(rvu); + + /* Register FLR interrupt handler */ + sprintf(&rvu->irq_name[RVU_AF_INT_VEC_PFFLR * NAME_SIZE], + "RVUAF FLR"); + ret = request_irq(pci_irq_vector(rvu->pdev, RVU_AF_INT_VEC_PFFLR), + rvu_flr_intr_handler, 0, + &rvu->irq_name[RVU_AF_INT_VEC_PFFLR * NAME_SIZE], + rvu); + if (ret) { + dev_err(rvu->dev, + "RVUAF: IRQ registration failed for FLR\n"); + goto fail; + } + rvu->irq_allocated[RVU_AF_INT_VEC_PFFLR] = true; + + /* Enable FLR interrupt for all PFs*/ + rvu_write64(rvu, BLKADDR_RVUM, + RVU_AF_PFFLR_INT, INTR_MASK(rvu->hw->total_pfs)); + + rvu_write64(rvu, BLKADDR_RVUM, RVU_AF_PFFLR_INT_ENA_W1S, + INTR_MASK(rvu->hw->total_pfs) & ~1ULL); + + /* Register ME interrupt handler */ + sprintf(&rvu->irq_name[RVU_AF_INT_VEC_PFME * NAME_SIZE], + "RVUAF ME"); + ret = request_irq(pci_irq_vector(rvu->pdev, RVU_AF_INT_VEC_PFME), + rvu_me_pf_intr_handler, 0, + &rvu->irq_name[RVU_AF_INT_VEC_PFME * NAME_SIZE], + rvu); + if (ret) { + dev_err(rvu->dev, + "RVUAF: IRQ registration failed for ME\n"); + } + rvu->irq_allocated[RVU_AF_INT_VEC_PFME] = true; + + /* Clear TRPEND bit for all PF */ + rvu_write64(rvu, BLKADDR_RVUM, + RVU_AF_PFTRPEND, INTR_MASK(rvu->hw->total_pfs)); + /* Enable ME interrupt for all PFs*/ + rvu_write64(rvu, BLKADDR_RVUM, + RVU_AF_PFME_INT, INTR_MASK(rvu->hw->total_pfs)); + + rvu_write64(rvu, BLKADDR_RVUM, RVU_AF_PFME_INT_ENA_W1S, + INTR_MASK(rvu->hw->total_pfs) & ~1ULL); + + if (!rvu_afvf_msix_vectors_num_ok(rvu)) + return 0; + + /* Get PF MSIX vectors offset. */ + pf_vec_start = rvu_read64(rvu, BLKADDR_RVUM, + RVU_PRIV_PFX_INT_CFG(0)) & 0x3ff; + + /* Register MBOX0 interrupt. */ + offset = pf_vec_start + RVU_PF_INT_VEC_VFPF_MBOX0; + sprintf(&rvu->irq_name[offset * NAME_SIZE], "RVUAFVF Mbox0"); + ret = request_irq(pci_irq_vector(rvu->pdev, offset), + rvu_mbox_intr_handler, 0, + &rvu->irq_name[offset * NAME_SIZE], + rvu); + if (ret) + dev_err(rvu->dev, + "RVUAF: IRQ registration failed for Mbox0\n"); + + rvu->irq_allocated[offset] = true; + + /* Register MBOX1 interrupt. MBOX1 IRQ number follows MBOX0 so + * simply increment current offset by 1. + */ + offset = pf_vec_start + RVU_PF_INT_VEC_VFPF_MBOX1; + sprintf(&rvu->irq_name[offset * NAME_SIZE], "RVUAFVF Mbox1"); + ret = request_irq(pci_irq_vector(rvu->pdev, offset), + rvu_mbox_intr_handler, 0, + &rvu->irq_name[offset * NAME_SIZE], + rvu); + if (ret) + dev_err(rvu->dev, + "RVUAF: IRQ registration failed for Mbox1\n"); + + rvu->irq_allocated[offset] = true; + + /* Register FLR interrupt handler for AF's VFs */ + offset = pf_vec_start + RVU_PF_INT_VEC_VFFLR0; + sprintf(&rvu->irq_name[offset * NAME_SIZE], "RVUAFVF FLR0"); + ret = request_irq(pci_irq_vector(rvu->pdev, offset), + rvu_flr_intr_handler, 0, + &rvu->irq_name[offset * NAME_SIZE], rvu); + if (ret) { + dev_err(rvu->dev, + "RVUAF: IRQ registration failed for RVUAFVF FLR0\n"); + goto fail; + } + rvu->irq_allocated[offset] = true; + + offset = pf_vec_start + RVU_PF_INT_VEC_VFFLR1; + sprintf(&rvu->irq_name[offset * NAME_SIZE], "RVUAFVF FLR1"); + ret = request_irq(pci_irq_vector(rvu->pdev, offset), + rvu_flr_intr_handler, 0, + &rvu->irq_name[offset * NAME_SIZE], rvu); + if (ret) { + dev_err(rvu->dev, + "RVUAF: IRQ registration failed for RVUAFVF FLR1\n"); + goto fail; + } + rvu->irq_allocated[offset] = true; + + /* Register ME interrupt handler for AF's VFs */ + offset = pf_vec_start + RVU_PF_INT_VEC_VFME0; + sprintf(&rvu->irq_name[offset * NAME_SIZE], "RVUAFVF ME0"); + ret = request_irq(pci_irq_vector(rvu->pdev, offset), + rvu_me_vf_intr_handler, 0, + &rvu->irq_name[offset * NAME_SIZE], rvu); + if (ret) { + dev_err(rvu->dev, + "RVUAF: IRQ registration failed for RVUAFVF ME0\n"); + goto fail; + } + rvu->irq_allocated[offset] = true; + + offset = pf_vec_start + RVU_PF_INT_VEC_VFME1; + sprintf(&rvu->irq_name[offset * NAME_SIZE], "RVUAFVF ME1"); + ret = request_irq(pci_irq_vector(rvu->pdev, offset), + rvu_me_vf_intr_handler, 0, + &rvu->irq_name[offset * NAME_SIZE], rvu); + if (ret) { + dev_err(rvu->dev, + "RVUAF: IRQ registration failed for RVUAFVF ME1\n"); + goto fail; + } + rvu->irq_allocated[offset] = true; + + ret = rvu_cpt_register_interrupts(rvu); + if (ret) + goto fail; + + return 0; + +fail: + rvu_unregister_interrupts(rvu); + return ret; +} + +static void rvu_flr_wq_destroy(struct rvu *rvu) +{ + if (rvu->flr_wq) { + destroy_workqueue(rvu->flr_wq); + rvu->flr_wq = NULL; + } +} + +static int rvu_flr_init(struct rvu *rvu) +{ + int dev, num_devs; + u64 cfg; + int pf; + + /* Enable FLR for all PFs*/ + for (pf = 0; pf < rvu->hw->total_pfs; pf++) { + cfg = rvu_read64(rvu, BLKADDR_RVUM, RVU_PRIV_PFX_CFG(pf)); + rvu_write64(rvu, BLKADDR_RVUM, RVU_PRIV_PFX_CFG(pf), + cfg | BIT_ULL(22)); + } + + rvu->flr_wq = alloc_workqueue("rvu_afpf_flr", + WQ_UNBOUND | WQ_HIGHPRI | WQ_MEM_RECLAIM, + 1); + if (!rvu->flr_wq) + return -ENOMEM; + + num_devs = rvu->hw->total_pfs + pci_sriov_get_totalvfs(rvu->pdev); + rvu->flr_wrk = devm_kcalloc(rvu->dev, num_devs, + sizeof(struct rvu_work), GFP_KERNEL); + if (!rvu->flr_wrk) { + destroy_workqueue(rvu->flr_wq); + return -ENOMEM; + } + + for (dev = 0; dev < num_devs; dev++) { + rvu->flr_wrk[dev].rvu = rvu; + INIT_WORK(&rvu->flr_wrk[dev].work, rvu_flr_handler); + } + + mutex_init(&rvu->flr_lock); + + return 0; +} + +static void rvu_disable_afvf_intr(struct rvu *rvu) +{ + int vfs = rvu->vfs; + + rvupf_write64(rvu, RVU_PF_VFPF_MBOX_INT_ENA_W1CX(0), INTR_MASK(vfs)); + rvupf_write64(rvu, RVU_PF_VFFLR_INT_ENA_W1CX(0), INTR_MASK(vfs)); + rvupf_write64(rvu, RVU_PF_VFME_INT_ENA_W1CX(0), INTR_MASK(vfs)); + if (vfs <= 64) + return; + + rvupf_write64(rvu, RVU_PF_VFPF_MBOX_INT_ENA_W1CX(1), + INTR_MASK(vfs - 64)); + rvupf_write64(rvu, RVU_PF_VFFLR_INT_ENA_W1CX(1), INTR_MASK(vfs - 64)); + rvupf_write64(rvu, RVU_PF_VFME_INT_ENA_W1CX(1), INTR_MASK(vfs - 64)); +} + +static void rvu_enable_afvf_intr(struct rvu *rvu) +{ + int vfs = rvu->vfs; + + /* Clear any pending interrupts and enable AF VF interrupts for + * the first 64 VFs. + */ + /* Mbox */ + rvupf_write64(rvu, RVU_PF_VFPF_MBOX_INTX(0), INTR_MASK(vfs)); + rvupf_write64(rvu, RVU_PF_VFPF_MBOX_INT_ENA_W1SX(0), INTR_MASK(vfs)); + + /* FLR */ + rvupf_write64(rvu, RVU_PF_VFFLR_INTX(0), INTR_MASK(vfs)); + rvupf_write64(rvu, RVU_PF_VFFLR_INT_ENA_W1SX(0), INTR_MASK(vfs)); + rvupf_write64(rvu, RVU_PF_VFME_INT_ENA_W1SX(0), INTR_MASK(vfs)); + + /* Same for remaining VFs, if any. */ + if (vfs <= 64) + return; + + rvupf_write64(rvu, RVU_PF_VFPF_MBOX_INTX(1), INTR_MASK(vfs - 64)); + rvupf_write64(rvu, RVU_PF_VFPF_MBOX_INT_ENA_W1SX(1), + INTR_MASK(vfs - 64)); + + rvupf_write64(rvu, RVU_PF_VFFLR_INTX(1), INTR_MASK(vfs - 64)); + rvupf_write64(rvu, RVU_PF_VFFLR_INT_ENA_W1SX(1), INTR_MASK(vfs - 64)); + rvupf_write64(rvu, RVU_PF_VFME_INT_ENA_W1SX(1), INTR_MASK(vfs - 64)); +} + +int rvu_get_num_lbk_chans(void) +{ + struct pci_dev *pdev; + void __iomem *base; + int ret = -EIO; + + pdev = pci_get_device(PCI_VENDOR_ID_CAVIUM, PCI_DEVID_OCTEONTX2_LBK, + NULL); + if (!pdev) + goto err; + + base = pci_ioremap_bar(pdev, 0); + if (!base) + goto err_put; + + /* Read number of available LBK channels from LBK(0)_CONST register. */ + ret = (readq(base + 0x10) >> 32) & 0xffff; + iounmap(base); +err_put: + pci_dev_put(pdev); +err: + return ret; +} + +static int rvu_enable_sriov(struct rvu *rvu) +{ + struct pci_dev *pdev = rvu->pdev; + int err, chans, vfs; + + if (!rvu_afvf_msix_vectors_num_ok(rvu)) { + dev_warn(&pdev->dev, + "Skipping SRIOV enablement since not enough IRQs are available\n"); + return 0; + } + + chans = rvu_get_num_lbk_chans(); + if (chans < 0) + return chans; + + vfs = pci_sriov_get_totalvfs(pdev); + + /* Limit VFs in case we have more VFs than LBK channels available. */ + if (vfs > chans) + vfs = chans; + + if (!vfs) + return 0; + + /* LBK channel number 63 is used for switching packets between + * CGX mapped VFs. Hence limit LBK pairs till 62 only. + */ + if (vfs > 62) + vfs = 62; + + /* Save VFs number for reference in VF interrupts handlers. + * Since interrupts might start arriving during SRIOV enablement + * ordinary API cannot be used to get number of enabled VFs. + */ + rvu->vfs = vfs; + + err = rvu_mbox_init(rvu, &rvu->afvf_wq_info, TYPE_AFVF, vfs, + rvu_afvf_mbox_handler, rvu_afvf_mbox_up_handler); + if (err) + return err; + + rvu_enable_afvf_intr(rvu); + /* Make sure IRQs are enabled before SRIOV. */ + mb(); + + err = pci_enable_sriov(pdev, vfs); + if (err) { + rvu_disable_afvf_intr(rvu); + rvu_mbox_destroy(&rvu->afvf_wq_info); + return err; + } + + return 0; +} + +static void rvu_disable_sriov(struct rvu *rvu) +{ + rvu_disable_afvf_intr(rvu); + rvu_mbox_destroy(&rvu->afvf_wq_info); + pci_disable_sriov(rvu->pdev); +} + +static void rvu_update_module_params(struct rvu *rvu) +{ + const char *default_pfl_name = "default"; + + strscpy(rvu->mkex_pfl_name, + mkex_profile ? mkex_profile : default_pfl_name, MKEX_NAME_LEN); + strscpy(rvu->kpu_pfl_name, + kpu_profile ? kpu_profile : default_pfl_name, KPU_NAME_LEN); +} + +static int rvu_probe(struct pci_dev *pdev, const struct pci_device_id *id) +{ + struct device *dev = &pdev->dev; + struct rvu *rvu; + int err; + + rvu = devm_kzalloc(dev, sizeof(*rvu), GFP_KERNEL); + if (!rvu) + return -ENOMEM; + + rvu->hw = devm_kzalloc(dev, sizeof(struct rvu_hwinfo), GFP_KERNEL); + if (!rvu->hw) { + devm_kfree(dev, rvu); + return -ENOMEM; + } + + pci_set_drvdata(pdev, rvu); + rvu->pdev = pdev; + rvu->dev = &pdev->dev; + + err = pci_enable_device(pdev); + if (err) { + dev_err(dev, "Failed to enable PCI device\n"); + goto err_freemem; + } + + err = pci_request_regions(pdev, DRV_NAME); + if (err) { + dev_err(dev, "PCI request regions failed 0x%x\n", err); + goto err_disable_device; + } + + err = dma_set_mask_and_coherent(dev, DMA_BIT_MASK(48)); + if (err) { + dev_err(dev, "DMA mask config failed, abort\n"); + goto err_release_regions; + } + + pci_set_master(pdev); + + rvu->ptp = ptp_get(); + if (IS_ERR(rvu->ptp)) { + err = PTR_ERR(rvu->ptp); + if (err) + goto err_release_regions; + rvu->ptp = NULL; + } + + /* Map Admin function CSRs */ + rvu->afreg_base = pcim_iomap(pdev, PCI_AF_REG_BAR_NUM, 0); + rvu->pfreg_base = pcim_iomap(pdev, PCI_PF_REG_BAR_NUM, 0); + if (!rvu->afreg_base || !rvu->pfreg_base) { + dev_err(dev, "Unable to map admin function CSRs, aborting\n"); + err = -ENOMEM; + goto err_put_ptp; + } + + /* Store module params in rvu structure */ + rvu_update_module_params(rvu); + + /* Check which blocks the HW supports */ + rvu_check_block_implemented(rvu); + + rvu_reset_all_blocks(rvu); + + rvu_setup_hw_capabilities(rvu); + + err = rvu_setup_hw_resources(rvu); + if (err) + goto err_put_ptp; + + /* Init mailbox btw AF and PFs */ + err = rvu_mbox_init(rvu, &rvu->afpf_wq_info, TYPE_AFPF, + rvu->hw->total_pfs, rvu_afpf_mbox_handler, + rvu_afpf_mbox_up_handler); + if (err) { + dev_err(dev, "%s: Failed to initialize mbox\n", __func__); + goto err_hwsetup; + } + + err = rvu_flr_init(rvu); + if (err) { + dev_err(dev, "%s: Failed to initialize flr\n", __func__); + goto err_mbox; + } + + err = rvu_register_interrupts(rvu); + if (err) { + dev_err(dev, "%s: Failed to register interrupts\n", __func__); + goto err_flr; + } + + err = rvu_register_dl(rvu); + if (err) { + dev_err(dev, "%s: Failed to register devlink\n", __func__); + goto err_irq; + } + + rvu_setup_rvum_blk_revid(rvu); + + /* Enable AF's VFs (if any) */ + err = rvu_enable_sriov(rvu); + if (err) { + dev_err(dev, "%s: Failed to enable sriov\n", __func__); + goto err_dl; + } + + /* Initialize debugfs */ + rvu_dbg_init(rvu); + + mutex_init(&rvu->rswitch.switch_lock); + + if (rvu->fwdata) + ptp_start(rvu->ptp, rvu->fwdata->sclk, rvu->fwdata->ptp_ext_clk_rate, + rvu->fwdata->ptp_ext_tstamp); + + return 0; +err_dl: + rvu_unregister_dl(rvu); +err_irq: + rvu_unregister_interrupts(rvu); +err_flr: + rvu_flr_wq_destroy(rvu); +err_mbox: + rvu_mbox_destroy(&rvu->afpf_wq_info); +err_hwsetup: + rvu_cgx_exit(rvu); + rvu_fwdata_exit(rvu); + rvu_mcs_exit(rvu); + rvu_reset_all_blocks(rvu); + rvu_free_hw_resources(rvu); + rvu_clear_rvum_blk_revid(rvu); +err_put_ptp: + ptp_put(rvu->ptp); +err_release_regions: + pci_release_regions(pdev); +err_disable_device: + pci_disable_device(pdev); +err_freemem: + pci_set_drvdata(pdev, NULL); + devm_kfree(&pdev->dev, rvu->hw); + devm_kfree(dev, rvu); + return err; +} + +static void rvu_remove(struct pci_dev *pdev) +{ + struct rvu *rvu = pci_get_drvdata(pdev); + + rvu_dbg_exit(rvu); + rvu_unregister_dl(rvu); + rvu_unregister_interrupts(rvu); + rvu_flr_wq_destroy(rvu); + rvu_cgx_exit(rvu); + rvu_fwdata_exit(rvu); + rvu_mcs_exit(rvu); + rvu_mbox_destroy(&rvu->afpf_wq_info); + rvu_disable_sriov(rvu); + rvu_reset_all_blocks(rvu); + rvu_free_hw_resources(rvu); + rvu_clear_rvum_blk_revid(rvu); + ptp_put(rvu->ptp); + pci_release_regions(pdev); + pci_disable_device(pdev); + pci_set_drvdata(pdev, NULL); + + devm_kfree(&pdev->dev, rvu->hw); + devm_kfree(&pdev->dev, rvu); +} + +static struct pci_driver rvu_driver = { + .name = DRV_NAME, + .id_table = rvu_id_table, + .probe = rvu_probe, + .remove = rvu_remove, +}; + +static int __init rvu_init_module(void) +{ + int err; + + pr_info("%s: %s\n", DRV_NAME, DRV_STRING); + + err = pci_register_driver(&cgx_driver); + if (err < 0) + return err; + + err = pci_register_driver(&ptp_driver); + if (err < 0) + goto ptp_err; + + err = pci_register_driver(&mcs_driver); + if (err < 0) + goto mcs_err; + + err = pci_register_driver(&rvu_driver); + if (err < 0) + goto rvu_err; + + return 0; +rvu_err: + pci_unregister_driver(&mcs_driver); +mcs_err: + pci_unregister_driver(&ptp_driver); +ptp_err: + pci_unregister_driver(&cgx_driver); + + return err; +} + +static void __exit rvu_cleanup_module(void) +{ + pci_unregister_driver(&rvu_driver); + pci_unregister_driver(&mcs_driver); + pci_unregister_driver(&ptp_driver); + pci_unregister_driver(&cgx_driver); +} + +module_init(rvu_init_module); +module_exit(rvu_cleanup_module); diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rvu.h b/drivers/net/ethernet/marvell/octeontx2/af/rvu.h new file mode 100644 index 000000000..0b76dfa97 --- /dev/null +++ b/drivers/net/ethernet/marvell/octeontx2/af/rvu.h @@ -0,0 +1,912 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* Marvell RVU Admin Function driver + * + * Copyright (C) 2018 Marvell. + * + */ + +#ifndef RVU_H +#define RVU_H + +#include <linux/pci.h> +#include <net/devlink.h> + +#include "rvu_struct.h" +#include "rvu_devlink.h" +#include "common.h" +#include "mbox.h" +#include "npc.h" +#include "rvu_reg.h" + +/* PCI device IDs */ +#define PCI_DEVID_OCTEONTX2_RVU_AF 0xA065 +#define PCI_DEVID_OCTEONTX2_LBK 0xA061 + +/* Subsystem Device ID */ +#define PCI_SUBSYS_DEVID_98XX 0xB100 +#define PCI_SUBSYS_DEVID_96XX 0xB200 +#define PCI_SUBSYS_DEVID_CN10K_A 0xB900 +#define PCI_SUBSYS_DEVID_CNF10K_B 0xBC00 +#define PCI_SUBSYS_DEVID_CN10K_B 0xBD00 + +/* PCI BAR nos */ +#define PCI_AF_REG_BAR_NUM 0 +#define PCI_PF_REG_BAR_NUM 2 +#define PCI_MBOX_BAR_NUM 4 + +#define NAME_SIZE 32 +#define MAX_NIX_BLKS 2 +#define MAX_CPT_BLKS 2 + +/* PF_FUNC */ +#define RVU_PFVF_PF_SHIFT 10 +#define RVU_PFVF_PF_MASK 0x3F +#define RVU_PFVF_FUNC_SHIFT 0 +#define RVU_PFVF_FUNC_MASK 0x3FF + +#ifdef CONFIG_DEBUG_FS +struct dump_ctx { + int lf; + int id; + bool all; +}; + +struct cpt_ctx { + int blkaddr; + struct rvu *rvu; +}; + +struct rvu_debugfs { + struct dentry *root; + struct dentry *cgx_root; + struct dentry *cgx; + struct dentry *lmac; + struct dentry *npa; + struct dentry *nix; + struct dentry *npc; + struct dentry *cpt; + struct dentry *mcs_root; + struct dentry *mcs; + struct dentry *mcs_rx; + struct dentry *mcs_tx; + struct dump_ctx npa_aura_ctx; + struct dump_ctx npa_pool_ctx; + struct dump_ctx nix_cq_ctx; + struct dump_ctx nix_rq_ctx; + struct dump_ctx nix_sq_ctx; + struct cpt_ctx cpt_ctx[MAX_CPT_BLKS]; + int npa_qsize_id; + int nix_qsize_id; +}; +#endif + +struct rvu_work { + struct work_struct work; + struct rvu *rvu; + int num_msgs; + int up_num_msgs; +}; + +struct rsrc_bmap { + unsigned long *bmap; /* Pointer to resource bitmap */ + u16 max; /* Max resource id or count */ +}; + +struct rvu_block { + struct rsrc_bmap lf; + struct admin_queue *aq; /* NIX/NPA AQ */ + u16 *fn_map; /* LF to pcifunc mapping */ + bool multislot; + bool implemented; + u8 addr; /* RVU_BLOCK_ADDR_E */ + u8 type; /* RVU_BLOCK_TYPE_E */ + u8 lfshift; + u64 lookup_reg; + u64 pf_lfcnt_reg; + u64 vf_lfcnt_reg; + u64 lfcfg_reg; + u64 msixcfg_reg; + u64 lfreset_reg; + unsigned char name[NAME_SIZE]; + struct rvu *rvu; +}; + +struct nix_mcast { + struct qmem *mce_ctx; + struct qmem *mcast_buf; + int replay_pkind; + int next_free_mce; + struct mutex mce_lock; /* Serialize MCE updates */ +}; + +struct nix_mce_list { + struct hlist_head head; + int count; + int max; +}; + +/* layer metadata to uniquely identify a packet header field */ +struct npc_layer_mdata { + u8 lid; + u8 ltype; + u8 hdr; + u8 key; + u8 len; +}; + +/* Structure to represent a field present in the + * generated key. A key field may present anywhere and can + * be of any size in the generated key. Once this structure + * is populated for fields of interest then field's presence + * and location (if present) can be known. + */ +struct npc_key_field { + /* Masks where all set bits indicate position + * of a field in the key + */ + u64 kw_mask[NPC_MAX_KWS_IN_KEY]; + /* Number of words in the key a field spans. If a field is + * of 16 bytes and key offset is 4 then the field will use + * 4 bytes in KW0, 8 bytes in KW1 and 4 bytes in KW2 and + * nr_kws will be 3(KW0, KW1 and KW2). + */ + int nr_kws; + /* used by packet header fields */ + struct npc_layer_mdata layer_mdata; +}; + +struct npc_mcam { + struct rsrc_bmap counters; + struct mutex lock; /* MCAM entries and counters update lock */ + unsigned long *bmap; /* bitmap, 0 => bmap_entries */ + unsigned long *bmap_reverse; /* Reverse bitmap, bmap_entries => 0 */ + u16 bmap_entries; /* Number of unreserved MCAM entries */ + u16 bmap_fcnt; /* MCAM entries free count */ + u16 *entry2pfvf_map; + u16 *entry2cntr_map; + u16 *cntr2pfvf_map; + u16 *cntr_refcnt; + u16 *entry2target_pffunc; + u8 keysize; /* MCAM keysize 112/224/448 bits */ + u8 banks; /* Number of MCAM banks */ + u8 banks_per_entry;/* Number of keywords in key */ + u16 banksize; /* Number of MCAM entries in each bank */ + u16 total_entries; /* Total number of MCAM entries */ + u16 nixlf_offset; /* Offset of nixlf rsvd uncast entries */ + u16 pf_offset; /* Offset of PF's rsvd bcast, promisc entries */ + u16 lprio_count; + u16 lprio_start; + u16 hprio_count; + u16 hprio_end; + u16 rx_miss_act_cntr; /* Counter for RX MISS action */ + /* fields present in the generated key */ + struct npc_key_field tx_key_fields[NPC_KEY_FIELDS_MAX]; + struct npc_key_field rx_key_fields[NPC_KEY_FIELDS_MAX]; + u64 tx_features; + u64 rx_features; + struct list_head mcam_rules; +}; + +/* Structure for per RVU func info ie PF/VF */ +struct rvu_pfvf { + bool npalf; /* Only one NPALF per RVU_FUNC */ + bool nixlf; /* Only one NIXLF per RVU_FUNC */ + u16 sso; + u16 ssow; + u16 cptlfs; + u16 timlfs; + u16 cpt1_lfs; + u8 cgx_lmac; + + /* Block LF's MSIX vector info */ + struct rsrc_bmap msix; /* Bitmap for MSIX vector alloc */ +#define MSIX_BLKLF(blkaddr, lf) (((blkaddr) << 8) | ((lf) & 0xFF)) + u16 *msix_lfmap; /* Vector to block LF mapping */ + + /* NPA contexts */ + struct qmem *aura_ctx; + struct qmem *pool_ctx; + struct qmem *npa_qints_ctx; + unsigned long *aura_bmap; + unsigned long *pool_bmap; + + /* NIX contexts */ + struct qmem *rq_ctx; + struct qmem *sq_ctx; + struct qmem *cq_ctx; + struct qmem *rss_ctx; + struct qmem *cq_ints_ctx; + struct qmem *nix_qints_ctx; + unsigned long *sq_bmap; + unsigned long *rq_bmap; + unsigned long *cq_bmap; + + u16 rx_chan_base; + u16 tx_chan_base; + u8 rx_chan_cnt; /* total number of RX channels */ + u8 tx_chan_cnt; /* total number of TX channels */ + u16 maxlen; + u16 minlen; + + bool hw_rx_tstamp_en; /* Is rx_tstamp enabled */ + u8 mac_addr[ETH_ALEN]; /* MAC address of this PF/VF */ + u8 default_mac[ETH_ALEN]; /* MAC address from FWdata */ + + /* Broadcast/Multicast/Promisc pkt replication info */ + u16 bcast_mce_idx; + u16 mcast_mce_idx; + u16 promisc_mce_idx; + struct nix_mce_list bcast_mce_list; + struct nix_mce_list mcast_mce_list; + struct nix_mce_list promisc_mce_list; + bool use_mce_list; + + struct rvu_npc_mcam_rule *def_ucast_rule; + + bool cgx_in_use; /* this PF/VF using CGX? */ + int cgx_users; /* number of cgx users - used only by PFs */ + + int intf_mode; + u8 nix_blkaddr; /* BLKADDR_NIX0/1 assigned to this PF */ + u8 nix_rx_intf; /* NIX0_RX/NIX1_RX interface to NPC */ + u8 nix_tx_intf; /* NIX0_TX/NIX1_TX interface to NPC */ + u8 lbkid; /* NIX0/1 lbk link ID */ + u64 lmt_base_addr; /* Preseving the pcifunc's lmtst base addr*/ + u64 lmt_map_ent_w1; /* Preseving the word1 of lmtst map table entry*/ + unsigned long flags; + struct sdp_node_info *sdp_info; +}; + +enum rvu_pfvf_flags { + NIXLF_INITIALIZED = 0, + PF_SET_VF_MAC, + PF_SET_VF_CFG, + PF_SET_VF_TRUSTED, +}; + +#define RVU_CLEAR_VF_PERM ~GENMASK(PF_SET_VF_TRUSTED, PF_SET_VF_MAC) + +struct nix_txsch { + struct rsrc_bmap schq; + u8 lvl; +#define NIX_TXSCHQ_FREE BIT_ULL(1) +#define NIX_TXSCHQ_CFG_DONE BIT_ULL(0) +#define TXSCH_MAP_FUNC(__pfvf_map) ((__pfvf_map) & 0xFFFF) +#define TXSCH_MAP_FLAGS(__pfvf_map) ((__pfvf_map) >> 16) +#define TXSCH_MAP(__func, __flags) (((__func) & 0xFFFF) | ((__flags) << 16)) +#define TXSCH_SET_FLAG(__pfvf_map, flag) ((__pfvf_map) | ((flag) << 16)) + u32 *pfvf_map; +}; + +struct nix_mark_format { + u8 total; + u8 in_use; + u32 *cfg; +}; + +struct npc_pkind { + struct rsrc_bmap rsrc; + u32 *pfchan_map; +}; + +struct nix_flowkey { +#define NIX_FLOW_KEY_ALG_MAX 32 + u32 flowkey[NIX_FLOW_KEY_ALG_MAX]; + int in_use; +}; + +struct nix_lso { + u8 total; + u8 in_use; +}; + +struct nix_txvlan { +#define NIX_TX_VTAG_DEF_MAX 0x400 + struct rsrc_bmap rsrc; + u16 *entry2pfvf_map; + struct mutex rsrc_lock; /* Serialize resource alloc/free */ +}; + +struct nix_ipolicer { + struct rsrc_bmap band_prof; + u16 *pfvf_map; + u16 *match_id; + u16 *ref_count; +}; + +struct nix_hw { + int blkaddr; + struct rvu *rvu; + struct nix_txsch txsch[NIX_TXSCH_LVL_CNT]; /* Tx schedulers */ + struct nix_mcast mcast; + struct nix_flowkey flowkey; + struct nix_mark_format mark_format; + struct nix_lso lso; + struct nix_txvlan txvlan; + struct nix_ipolicer *ipolicer; + u64 *tx_credits; + u8 cc_mcs_cnt; +}; + +/* RVU block's capabilities or functionality, + * which vary by silicon version/skew. + */ +struct hw_cap { + /* Transmit side supported functionality */ + u8 nix_tx_aggr_lvl; /* Tx link's traffic aggregation level */ + u16 nix_txsch_per_cgx_lmac; /* Max Q's transmitting to CGX LMAC */ + u16 nix_txsch_per_lbk_lmac; /* Max Q's transmitting to LBK LMAC */ + u16 nix_txsch_per_sdp_lmac; /* Max Q's transmitting to SDP LMAC */ + bool nix_fixed_txschq_mapping; /* Schq mapping fixed or flexible */ + bool nix_shaping; /* Is shaping and coloring supported */ + bool nix_shaper_toggle_wait; /* Shaping toggle needs poll/wait */ + bool nix_tx_link_bp; /* Can link backpressure TL queues ? */ + bool nix_rx_multicast; /* Rx packet replication support */ + bool nix_common_dwrr_mtu; /* Common DWRR MTU for quantum config */ + bool per_pf_mbox_regs; /* PF mbox specified in per PF registers ? */ + bool programmable_chans; /* Channels programmable ? */ + bool ipolicer; + bool npc_hash_extract; /* Hash extract enabled ? */ + bool npc_exact_match_enabled; /* Exact match supported ? */ +}; + +struct rvu_hwinfo { + u8 total_pfs; /* MAX RVU PFs HW supports */ + u16 total_vfs; /* Max RVU VFs HW supports */ + u16 max_vfs_per_pf; /* Max VFs that can be attached to a PF */ + u8 cgx; + u8 lmac_per_cgx; + u16 cgx_chan_base; /* CGX base channel number */ + u16 lbk_chan_base; /* LBK base channel number */ + u16 sdp_chan_base; /* SDP base channel number */ + u16 cpt_chan_base; /* CPT base channel number */ + u8 cgx_links; + u8 lbk_links; + u8 sdp_links; + u8 cpt_links; /* Number of CPT links */ + u8 npc_kpus; /* No of parser units */ + u8 npc_pkinds; /* No of port kinds */ + u8 npc_intfs; /* No of interfaces */ + u8 npc_kpu_entries; /* No of KPU entries */ + u16 npc_counters; /* No of match stats counters */ + u32 lbk_bufsize; /* FIFO size supported by LBK */ + bool npc_ext_set; /* Extended register set */ + u64 npc_stat_ena; /* Match stats enable bit */ + + struct hw_cap cap; + struct rvu_block block[BLK_COUNT]; /* Block info */ + struct nix_hw *nix; + struct rvu *rvu; + struct npc_pkind pkind; + struct npc_mcam mcam; + struct npc_exact_table *table; +}; + +struct mbox_wq_info { + struct otx2_mbox mbox; + struct rvu_work *mbox_wrk; + + struct otx2_mbox mbox_up; + struct rvu_work *mbox_wrk_up; + + struct workqueue_struct *mbox_wq; +}; + +struct rvu_fwdata { +#define RVU_FWDATA_HEADER_MAGIC 0xCFDA /* Custom Firmware Data*/ +#define RVU_FWDATA_VERSION 0x0001 + u32 header_magic; + u32 version; /* version id */ + + /* MAC address */ +#define PF_MACNUM_MAX 32 +#define VF_MACNUM_MAX 256 + u64 pf_macs[PF_MACNUM_MAX]; + u64 vf_macs[VF_MACNUM_MAX]; + u64 sclk; + u64 rclk; + u64 mcam_addr; + u64 mcam_sz; + u64 msixtr_base; + u32 ptp_ext_clk_rate; + u32 ptp_ext_tstamp; +#define FWDATA_RESERVED_MEM 1022 + u64 reserved[FWDATA_RESERVED_MEM]; +#define CGX_MAX 5 +#define CGX_LMACS_MAX 4 + struct cgx_lmac_fwdata_s cgx_fw_data[CGX_MAX][CGX_LMACS_MAX]; + /* Do not add new fields below this line */ +}; + +struct ptp; + +/* KPU profile adapter structure gathering all KPU configuration data and abstracting out the + * source where it came from. + */ +struct npc_kpu_profile_adapter { + const char *name; + u64 version; + const struct npc_lt_def_cfg *lt_def; + const struct npc_kpu_profile_action *ikpu; /* array[pkinds] */ + const struct npc_kpu_profile *kpu; /* array[kpus] */ + struct npc_mcam_kex *mkex; + struct npc_mcam_kex_hash *mkex_hash; + bool custom; + size_t pkinds; + size_t kpus; +}; + +#define RVU_SWITCH_LBK_CHAN 63 + +struct rvu_switch { + struct mutex switch_lock; /* Serialize flow installation */ + u32 used_entries; + u16 *entry2pcifunc; + u16 mode; + u16 start_entry; +}; + +struct rvu { + void __iomem *afreg_base; + void __iomem *pfreg_base; + struct pci_dev *pdev; + struct device *dev; + struct rvu_hwinfo *hw; + struct rvu_pfvf *pf; + struct rvu_pfvf *hwvf; + struct mutex rsrc_lock; /* Serialize resource alloc/free */ + int vfs; /* Number of VFs attached to RVU */ + int nix_blkaddr[MAX_NIX_BLKS]; + + /* Mbox */ + struct mbox_wq_info afpf_wq_info; + struct mbox_wq_info afvf_wq_info; + + /* PF FLR */ + struct rvu_work *flr_wrk; + struct workqueue_struct *flr_wq; + struct mutex flr_lock; /* Serialize FLRs */ + + /* MSI-X */ + u16 num_vec; + char *irq_name; + bool *irq_allocated; + dma_addr_t msix_base_iova; + u64 msixtr_base_phy; /* Register reset value */ + + /* CGX */ +#define PF_CGXMAP_BASE 1 /* PF 0 is reserved for RVU PF */ + u16 cgx_mapped_vfs; /* maximum CGX mapped VFs */ + u8 cgx_mapped_pfs; + u8 cgx_cnt_max; /* CGX port count max */ + u8 *pf2cgxlmac_map; /* pf to cgx_lmac map */ + u64 *cgxlmac2pf_map; /* bitmap of mapped pfs for + * every cgx lmac port + */ + unsigned long pf_notify_bmap; /* Flags for PF notification */ + void **cgx_idmap; /* cgx id to cgx data map table */ + struct work_struct cgx_evh_work; + struct workqueue_struct *cgx_evh_wq; + spinlock_t cgx_evq_lock; /* cgx event queue lock */ + struct list_head cgx_evq_head; /* cgx event queue head */ + struct mutex cgx_cfg_lock; /* serialize cgx configuration */ + + char mkex_pfl_name[MKEX_NAME_LEN]; /* Configured MKEX profile name */ + char kpu_pfl_name[KPU_NAME_LEN]; /* Configured KPU profile name */ + + /* Firmware data */ + struct rvu_fwdata *fwdata; + void *kpu_fwdata; + size_t kpu_fwdata_sz; + void __iomem *kpu_prfl_addr; + + /* NPC KPU data */ + struct npc_kpu_profile_adapter kpu; + + struct ptp *ptp; + + int mcs_blk_cnt; + +#ifdef CONFIG_DEBUG_FS + struct rvu_debugfs rvu_dbg; +#endif + struct rvu_devlink *rvu_dl; + + /* RVU switch implementation over NPC with DMAC rules */ + struct rvu_switch rswitch; + + struct work_struct mcs_intr_work; + struct workqueue_struct *mcs_intr_wq; + struct list_head mcs_intrq_head; + /* mcs interrupt queue lock */ + spinlock_t mcs_intrq_lock; +}; + +static inline void rvu_write64(struct rvu *rvu, u64 block, u64 offset, u64 val) +{ + writeq(val, rvu->afreg_base + ((block << 28) | offset)); +} + +static inline u64 rvu_read64(struct rvu *rvu, u64 block, u64 offset) +{ + return readq(rvu->afreg_base + ((block << 28) | offset)); +} + +static inline void rvupf_write64(struct rvu *rvu, u64 offset, u64 val) +{ + writeq(val, rvu->pfreg_base + offset); +} + +static inline u64 rvupf_read64(struct rvu *rvu, u64 offset) +{ + return readq(rvu->pfreg_base + offset); +} + +/* Silicon revisions */ +static inline bool is_rvu_pre_96xx_C0(struct rvu *rvu) +{ + struct pci_dev *pdev = rvu->pdev; + /* 96XX A0/B0, 95XX A0/A1/B0 chips */ + return ((pdev->revision == 0x00) || (pdev->revision == 0x01) || + (pdev->revision == 0x10) || (pdev->revision == 0x11) || + (pdev->revision == 0x14)); +} + +static inline bool is_rvu_96xx_A0(struct rvu *rvu) +{ + struct pci_dev *pdev = rvu->pdev; + + return (pdev->revision == 0x00); +} + +static inline bool is_rvu_96xx_B0(struct rvu *rvu) +{ + struct pci_dev *pdev = rvu->pdev; + + return (pdev->revision == 0x00) || (pdev->revision == 0x01); +} + +static inline bool is_rvu_95xx_A0(struct rvu *rvu) +{ + struct pci_dev *pdev = rvu->pdev; + + return (pdev->revision == 0x10) || (pdev->revision == 0x11); +} + +/* REVID for PCIe devices. + * Bits 0..1: minor pass, bit 3..2: major pass + * bits 7..4: midr id + */ +#define PCI_REVISION_ID_96XX 0x00 +#define PCI_REVISION_ID_95XX 0x10 +#define PCI_REVISION_ID_95XXN 0x20 +#define PCI_REVISION_ID_98XX 0x30 +#define PCI_REVISION_ID_95XXMM 0x40 +#define PCI_REVISION_ID_95XXO 0xE0 + +static inline bool is_rvu_otx2(struct rvu *rvu) +{ + struct pci_dev *pdev = rvu->pdev; + + u8 midr = pdev->revision & 0xF0; + + return (midr == PCI_REVISION_ID_96XX || midr == PCI_REVISION_ID_95XX || + midr == PCI_REVISION_ID_95XXN || midr == PCI_REVISION_ID_98XX || + midr == PCI_REVISION_ID_95XXMM || midr == PCI_REVISION_ID_95XXO); +} + +static inline bool is_rvu_npc_hash_extract_en(struct rvu *rvu) +{ + u64 npc_const3; + + npc_const3 = rvu_read64(rvu, BLKADDR_NPC, NPC_AF_CONST3); + if (!(npc_const3 & BIT_ULL(62))) + return false; + + return true; +} + +static inline u16 rvu_nix_chan_cgx(struct rvu *rvu, u8 cgxid, + u8 lmacid, u8 chan) +{ + u64 nix_const = rvu_read64(rvu, BLKADDR_NIX0, NIX_AF_CONST); + u16 cgx_chans = nix_const & 0xFFULL; + struct rvu_hwinfo *hw = rvu->hw; + + if (!hw->cap.programmable_chans) + return NIX_CHAN_CGX_LMAC_CHX(cgxid, lmacid, chan); + + return rvu->hw->cgx_chan_base + + (cgxid * hw->lmac_per_cgx + lmacid) * cgx_chans + chan; +} + +static inline u16 rvu_nix_chan_lbk(struct rvu *rvu, u8 lbkid, + u8 chan) +{ + u64 nix_const = rvu_read64(rvu, BLKADDR_NIX0, NIX_AF_CONST); + u16 lbk_chans = (nix_const >> 16) & 0xFFULL; + struct rvu_hwinfo *hw = rvu->hw; + + if (!hw->cap.programmable_chans) + return NIX_CHAN_LBK_CHX(lbkid, chan); + + return rvu->hw->lbk_chan_base + lbkid * lbk_chans + chan; +} + +static inline u16 rvu_nix_chan_sdp(struct rvu *rvu, u8 chan) +{ + struct rvu_hwinfo *hw = rvu->hw; + + if (!hw->cap.programmable_chans) + return NIX_CHAN_SDP_CHX(chan); + + return hw->sdp_chan_base + chan; +} + +static inline u16 rvu_nix_chan_cpt(struct rvu *rvu, u8 chan) +{ + return rvu->hw->cpt_chan_base + chan; +} + +static inline bool is_rvu_supports_nix1(struct rvu *rvu) +{ + struct pci_dev *pdev = rvu->pdev; + + if (pdev->subsystem_device == PCI_SUBSYS_DEVID_98XX) + return true; + + return false; +} + +/* Function Prototypes + * RVU + */ +static inline bool is_afvf(u16 pcifunc) +{ + return !(pcifunc & ~RVU_PFVF_FUNC_MASK); +} + +static inline bool is_vf(u16 pcifunc) +{ + return !!(pcifunc & RVU_PFVF_FUNC_MASK); +} + +/* check if PF_FUNC is AF */ +static inline bool is_pffunc_af(u16 pcifunc) +{ + return !pcifunc; +} + +static inline bool is_rvu_fwdata_valid(struct rvu *rvu) +{ + return (rvu->fwdata->header_magic == RVU_FWDATA_HEADER_MAGIC) && + (rvu->fwdata->version == RVU_FWDATA_VERSION); +} + +int rvu_alloc_bitmap(struct rsrc_bmap *rsrc); +void rvu_free_bitmap(struct rsrc_bmap *rsrc); +int rvu_alloc_rsrc(struct rsrc_bmap *rsrc); +void rvu_free_rsrc(struct rsrc_bmap *rsrc, int id); +bool is_rsrc_free(struct rsrc_bmap *rsrc, int id); +int rvu_rsrc_free_count(struct rsrc_bmap *rsrc); +int rvu_alloc_rsrc_contig(struct rsrc_bmap *rsrc, int nrsrc); +bool rvu_rsrc_check_contig(struct rsrc_bmap *rsrc, int nrsrc); +u16 rvu_get_rsrc_mapcount(struct rvu_pfvf *pfvf, int blkaddr); +int rvu_get_pf(u16 pcifunc); +struct rvu_pfvf *rvu_get_pfvf(struct rvu *rvu, int pcifunc); +void rvu_get_pf_numvfs(struct rvu *rvu, int pf, int *numvfs, int *hwvf); +bool is_block_implemented(struct rvu_hwinfo *hw, int blkaddr); +bool is_pffunc_map_valid(struct rvu *rvu, u16 pcifunc, int blktype); +int rvu_get_lf(struct rvu *rvu, struct rvu_block *block, u16 pcifunc, u16 slot); +int rvu_lf_reset(struct rvu *rvu, struct rvu_block *block, int lf); +int rvu_get_blkaddr(struct rvu *rvu, int blktype, u16 pcifunc); +int rvu_poll_reg(struct rvu *rvu, u64 block, u64 offset, u64 mask, bool zero); +int rvu_get_num_lbk_chans(void); +int rvu_get_blkaddr_from_slot(struct rvu *rvu, int blktype, u16 pcifunc, + u16 global_slot, u16 *slot_in_block); + +/* RVU HW reg validation */ +enum regmap_block { + TXSCHQ_HWREGMAP = 0, + MAX_HWREGMAP, +}; + +bool rvu_check_valid_reg(int regmap, int regblk, u64 reg); + +/* NPA/NIX AQ APIs */ +int rvu_aq_alloc(struct rvu *rvu, struct admin_queue **ad_queue, + int qsize, int inst_size, int res_size); +void rvu_aq_free(struct rvu *rvu, struct admin_queue *aq); + +/* SDP APIs */ +int rvu_sdp_init(struct rvu *rvu); +bool is_sdp_pfvf(u16 pcifunc); +bool is_sdp_pf(u16 pcifunc); +bool is_sdp_vf(u16 pcifunc); + +/* CGX APIs */ +static inline bool is_pf_cgxmapped(struct rvu *rvu, u8 pf) +{ + return (pf >= PF_CGXMAP_BASE && pf <= rvu->cgx_mapped_pfs) && + !is_sdp_pf(pf << RVU_PFVF_PF_SHIFT); +} + +static inline void rvu_get_cgx_lmac_id(u8 map, u8 *cgx_id, u8 *lmac_id) +{ + *cgx_id = (map >> 4) & 0xF; + *lmac_id = (map & 0xF); +} + +static inline bool is_cgx_vf(struct rvu *rvu, u16 pcifunc) +{ + return ((pcifunc & RVU_PFVF_FUNC_MASK) && + is_pf_cgxmapped(rvu, rvu_get_pf(pcifunc))); +} + +#define M(_name, _id, fn_name, req, rsp) \ +int rvu_mbox_handler_ ## fn_name(struct rvu *, struct req *, struct rsp *); +MBOX_MESSAGES +#undef M + +int rvu_cgx_init(struct rvu *rvu); +int rvu_cgx_exit(struct rvu *rvu); +void *rvu_cgx_pdata(u8 cgx_id, struct rvu *rvu); +int rvu_cgx_config_rxtx(struct rvu *rvu, u16 pcifunc, bool start); +void rvu_cgx_enadis_rx_bp(struct rvu *rvu, int pf, bool enable); +int rvu_cgx_start_stop_io(struct rvu *rvu, u16 pcifunc, bool start); +int rvu_cgx_nix_cuml_stats(struct rvu *rvu, void *cgxd, int lmac_id, int index, + int rxtxflag, u64 *stat); +void rvu_cgx_disable_dmac_entries(struct rvu *rvu, u16 pcifunc); + +/* NPA APIs */ +int rvu_npa_init(struct rvu *rvu); +void rvu_npa_freemem(struct rvu *rvu); +void rvu_npa_lf_teardown(struct rvu *rvu, u16 pcifunc, int npalf); +int rvu_npa_aq_enq_inst(struct rvu *rvu, struct npa_aq_enq_req *req, + struct npa_aq_enq_rsp *rsp); + +/* NIX APIs */ +bool is_nixlf_attached(struct rvu *rvu, u16 pcifunc); +int rvu_nix_init(struct rvu *rvu); +int rvu_nix_reserve_mark_format(struct rvu *rvu, struct nix_hw *nix_hw, + int blkaddr, u32 cfg); +void rvu_nix_freemem(struct rvu *rvu); +int rvu_get_nixlf_count(struct rvu *rvu); +void rvu_nix_lf_teardown(struct rvu *rvu, u16 pcifunc, int blkaddr, int npalf); +int nix_get_nixlf(struct rvu *rvu, u16 pcifunc, int *nixlf, int *nix_blkaddr); +int nix_update_mce_list(struct rvu *rvu, u16 pcifunc, + struct nix_mce_list *mce_list, + int mce_idx, int mcam_index, bool add); +void nix_get_mce_list(struct rvu *rvu, u16 pcifunc, int type, + struct nix_mce_list **mce_list, int *mce_idx); +struct nix_hw *get_nix_hw(struct rvu_hwinfo *hw, int blkaddr); +int rvu_get_next_nix_blkaddr(struct rvu *rvu, int blkaddr); +void rvu_nix_reset_mac(struct rvu_pfvf *pfvf, int pcifunc); +int nix_get_struct_ptrs(struct rvu *rvu, u16 pcifunc, + struct nix_hw **nix_hw, int *blkaddr); +int rvu_nix_setup_ratelimit_aggr(struct rvu *rvu, u16 pcifunc, + u16 rq_idx, u16 match_id); +int nix_aq_context_read(struct rvu *rvu, struct nix_hw *nix_hw, + struct nix_cn10k_aq_enq_req *aq_req, + struct nix_cn10k_aq_enq_rsp *aq_rsp, + u16 pcifunc, u8 ctype, u32 qidx); +int rvu_get_nix_blkaddr(struct rvu *rvu, u16 pcifunc); +u32 convert_dwrr_mtu_to_bytes(u8 dwrr_mtu); +u32 convert_bytes_to_dwrr_mtu(u32 bytes); + +/* NPC APIs */ +void rvu_npc_freemem(struct rvu *rvu); +int rvu_npc_get_pkind(struct rvu *rvu, u16 pf); +void rvu_npc_set_pkind(struct rvu *rvu, int pkind, struct rvu_pfvf *pfvf); +int npc_config_ts_kpuaction(struct rvu *rvu, int pf, u16 pcifunc, bool en); +void rvu_npc_install_ucast_entry(struct rvu *rvu, u16 pcifunc, + int nixlf, u64 chan, u8 *mac_addr); +void rvu_npc_install_promisc_entry(struct rvu *rvu, u16 pcifunc, + int nixlf, u64 chan, u8 chan_cnt); +void rvu_npc_enable_promisc_entry(struct rvu *rvu, u16 pcifunc, int nixlf, + bool enable); +void rvu_npc_install_bcast_match_entry(struct rvu *rvu, u16 pcifunc, + int nixlf, u64 chan); +void rvu_npc_enable_bcast_entry(struct rvu *rvu, u16 pcifunc, int nixlf, + bool enable); +void rvu_npc_install_allmulti_entry(struct rvu *rvu, u16 pcifunc, int nixlf, + u64 chan); +void rvu_npc_enable_allmulti_entry(struct rvu *rvu, u16 pcifunc, int nixlf, + bool enable); + +void npc_enadis_default_mce_entry(struct rvu *rvu, u16 pcifunc, + int nixlf, int type, bool enable); +void rvu_npc_disable_mcam_entries(struct rvu *rvu, u16 pcifunc, int nixlf); +bool rvu_npc_enable_mcam_by_entry_index(struct rvu *rvu, int entry, int intf, bool enable); +void rvu_npc_free_mcam_entries(struct rvu *rvu, u16 pcifunc, int nixlf); +void rvu_npc_disable_default_entries(struct rvu *rvu, u16 pcifunc, int nixlf); +void rvu_npc_enable_default_entries(struct rvu *rvu, u16 pcifunc, int nixlf); +void rvu_npc_update_flowkey_alg_idx(struct rvu *rvu, u16 pcifunc, int nixlf, + int group, int alg_idx, int mcam_index); + +void rvu_npc_get_mcam_entry_alloc_info(struct rvu *rvu, u16 pcifunc, + int blkaddr, int *alloc_cnt, + int *enable_cnt); +void rvu_npc_get_mcam_counter_alloc_info(struct rvu *rvu, u16 pcifunc, + int blkaddr, int *alloc_cnt, + int *enable_cnt); +bool is_npc_intf_tx(u8 intf); +bool is_npc_intf_rx(u8 intf); +bool is_npc_interface_valid(struct rvu *rvu, u8 intf); +int rvu_npc_get_tx_nibble_cfg(struct rvu *rvu, u64 nibble_ena); +int npc_flow_steering_init(struct rvu *rvu, int blkaddr); +const char *npc_get_field_name(u8 hdr); +int npc_get_bank(struct npc_mcam *mcam, int index); +void npc_mcam_enable_flows(struct rvu *rvu, u16 target); +void npc_mcam_disable_flows(struct rvu *rvu, u16 target); +void npc_enable_mcam_entry(struct rvu *rvu, struct npc_mcam *mcam, + int blkaddr, int index, bool enable); +void npc_read_mcam_entry(struct rvu *rvu, struct npc_mcam *mcam, + int blkaddr, u16 src, struct mcam_entry *entry, + u8 *intf, u8 *ena); +bool is_cgx_config_permitted(struct rvu *rvu, u16 pcifunc); +bool is_mac_feature_supported(struct rvu *rvu, int pf, int feature); +u32 rvu_cgx_get_fifolen(struct rvu *rvu); +void *rvu_first_cgx_pdata(struct rvu *rvu); +int cgxlmac_to_pf(struct rvu *rvu, int cgx_id, int lmac_id); +int rvu_cgx_config_tx(void *cgxd, int lmac_id, bool enable); +int rvu_cgx_tx_enable(struct rvu *rvu, u16 pcifunc, bool enable); +int rvu_cgx_prio_flow_ctrl_cfg(struct rvu *rvu, u16 pcifunc, u8 tx_pause, u8 rx_pause, + u16 pfc_en); +int rvu_cgx_cfg_pause_frm(struct rvu *rvu, u16 pcifunc, u8 tx_pause, u8 rx_pause); +u32 rvu_cgx_get_lmac_fifolen(struct rvu *rvu, int cgx, int lmac); +int npc_get_nixlf_mcam_index(struct npc_mcam *mcam, u16 pcifunc, int nixlf, + int type); +bool is_mcam_entry_enabled(struct rvu *rvu, struct npc_mcam *mcam, int blkaddr, + int index); +int rvu_npc_init(struct rvu *rvu); +int npc_install_mcam_drop_rule(struct rvu *rvu, int mcam_idx, u16 *counter_idx, + u64 chan_val, u64 chan_mask, u64 exact_val, u64 exact_mask, + u64 bcast_mcast_val, u64 bcast_mcast_mask); +void npc_mcam_rsrcs_reserve(struct rvu *rvu, int blkaddr, int entry_idx); +bool npc_is_feature_supported(struct rvu *rvu, u64 features, u8 intf); + +/* CPT APIs */ +int rvu_cpt_register_interrupts(struct rvu *rvu); +void rvu_cpt_unregister_interrupts(struct rvu *rvu); +int rvu_cpt_lf_teardown(struct rvu *rvu, u16 pcifunc, int blkaddr, int lf, + int slot); +int rvu_cpt_ctx_flush(struct rvu *rvu, u16 pcifunc); + +#define NDC_AF_BANK_MASK GENMASK_ULL(7, 0) +#define NDC_AF_BANK_LINE_MASK GENMASK_ULL(31, 16) + +/* CN10K RVU */ +int rvu_set_channels_base(struct rvu *rvu); +void rvu_program_channels(struct rvu *rvu); + +/* CN10K RVU - LMT*/ +void rvu_reset_lmt_map_tbl(struct rvu *rvu, u16 pcifunc); + +#ifdef CONFIG_DEBUG_FS +void rvu_dbg_init(struct rvu *rvu); +void rvu_dbg_exit(struct rvu *rvu); +#else +static inline void rvu_dbg_init(struct rvu *rvu) {} +static inline void rvu_dbg_exit(struct rvu *rvu) {} +#endif + +int rvu_ndc_fix_locked_cacheline(struct rvu *rvu, int blkaddr); + +/* RVU Switch */ +void rvu_switch_enable(struct rvu *rvu); +void rvu_switch_disable(struct rvu *rvu); +void rvu_switch_update_rules(struct rvu *rvu, u16 pcifunc); + +int rvu_npc_set_parse_mode(struct rvu *rvu, u16 pcifunc, u64 mode, u8 dir, + u64 pkind, u8 var_len_off, u8 var_len_off_mask, + u8 shift_dir); +int rvu_get_hwvf(struct rvu *rvu, int pcifunc); + +/* CN10K MCS */ +int rvu_mcs_init(struct rvu *rvu); +int rvu_mcs_flr_handler(struct rvu *rvu, u16 pcifunc); +void rvu_mcs_ptp_cfg(struct rvu *rvu, u8 rpm_id, u8 lmac_id, bool ena); +void rvu_mcs_exit(struct rvu *rvu); + +#endif /* RVU_H */ diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rvu_cgx.c b/drivers/net/ethernet/marvell/octeontx2/af/rvu_cgx.c new file mode 100644 index 000000000..bcb4385d0 --- /dev/null +++ b/drivers/net/ethernet/marvell/octeontx2/af/rvu_cgx.c @@ -0,0 +1,1254 @@ +// SPDX-License-Identifier: GPL-2.0 +/* Marvell RVU Admin Function driver + * + * Copyright (C) 2018 Marvell. + * + */ + +#include <linux/types.h> +#include <linux/module.h> +#include <linux/pci.h> + +#include "rvu.h" +#include "cgx.h" +#include "lmac_common.h" +#include "rvu_reg.h" +#include "rvu_trace.h" +#include "rvu_npc_hash.h" + +struct cgx_evq_entry { + struct list_head evq_node; + struct cgx_link_event link_event; +}; + +#define M(_name, _id, _fn_name, _req_type, _rsp_type) \ +static struct _req_type __maybe_unused \ +*otx2_mbox_alloc_msg_ ## _fn_name(struct rvu *rvu, int devid) \ +{ \ + struct _req_type *req; \ + \ + req = (struct _req_type *)otx2_mbox_alloc_msg_rsp( \ + &rvu->afpf_wq_info.mbox_up, devid, sizeof(struct _req_type), \ + sizeof(struct _rsp_type)); \ + if (!req) \ + return NULL; \ + req->hdr.sig = OTX2_MBOX_REQ_SIG; \ + req->hdr.id = _id; \ + trace_otx2_msg_alloc(rvu->pdev, _id, sizeof(*req)); \ + return req; \ +} + +MBOX_UP_CGX_MESSAGES +#undef M + +bool is_mac_feature_supported(struct rvu *rvu, int pf, int feature) +{ + u8 cgx_id, lmac_id; + void *cgxd; + + if (!is_pf_cgxmapped(rvu, pf)) + return 0; + + rvu_get_cgx_lmac_id(rvu->pf2cgxlmac_map[pf], &cgx_id, &lmac_id); + cgxd = rvu_cgx_pdata(cgx_id, rvu); + + return (cgx_features_get(cgxd) & feature); +} + +#define CGX_OFFSET(x) ((x) * rvu->hw->lmac_per_cgx) +/* Returns bitmap of mapped PFs */ +static u64 cgxlmac_to_pfmap(struct rvu *rvu, u8 cgx_id, u8 lmac_id) +{ + return rvu->cgxlmac2pf_map[CGX_OFFSET(cgx_id) + lmac_id]; +} + +int cgxlmac_to_pf(struct rvu *rvu, int cgx_id, int lmac_id) +{ + unsigned long pfmap; + + pfmap = cgxlmac_to_pfmap(rvu, cgx_id, lmac_id); + + /* Assumes only one pf mapped to a cgx lmac port */ + if (!pfmap) + return -ENODEV; + else + return find_first_bit(&pfmap, + rvu->cgx_cnt_max * rvu->hw->lmac_per_cgx); +} + +static u8 cgxlmac_id_to_bmap(u8 cgx_id, u8 lmac_id) +{ + return ((cgx_id & 0xF) << 4) | (lmac_id & 0xF); +} + +void *rvu_cgx_pdata(u8 cgx_id, struct rvu *rvu) +{ + if (cgx_id >= rvu->cgx_cnt_max) + return NULL; + + return rvu->cgx_idmap[cgx_id]; +} + +/* Return first enabled CGX instance if none are enabled then return NULL */ +void *rvu_first_cgx_pdata(struct rvu *rvu) +{ + int first_enabled_cgx = 0; + void *cgxd = NULL; + + for (; first_enabled_cgx < rvu->cgx_cnt_max; first_enabled_cgx++) { + cgxd = rvu_cgx_pdata(first_enabled_cgx, rvu); + if (cgxd) + break; + } + + return cgxd; +} + +/* Based on P2X connectivity find mapped NIX block for a PF */ +static void rvu_map_cgx_nix_block(struct rvu *rvu, int pf, + int cgx_id, int lmac_id) +{ + struct rvu_pfvf *pfvf = &rvu->pf[pf]; + u8 p2x; + + p2x = cgx_lmac_get_p2x(cgx_id, lmac_id); + /* Firmware sets P2X_SELECT as either NIX0 or NIX1 */ + pfvf->nix_blkaddr = BLKADDR_NIX0; + if (is_rvu_supports_nix1(rvu) && p2x == CMR_P2X_SEL_NIX1) + pfvf->nix_blkaddr = BLKADDR_NIX1; +} + +static int rvu_map_cgx_lmac_pf(struct rvu *rvu) +{ + struct npc_pkind *pkind = &rvu->hw->pkind; + int cgx_cnt_max = rvu->cgx_cnt_max; + int pf = PF_CGXMAP_BASE; + unsigned long lmac_bmap; + int size, free_pkind; + int cgx, lmac, iter; + int numvfs, hwvfs; + + if (!cgx_cnt_max) + return 0; + + if (cgx_cnt_max > 0xF || rvu->hw->lmac_per_cgx > 0xF) + return -EINVAL; + + /* Alloc map table + * An additional entry is required since PF id starts from 1 and + * hence entry at offset 0 is invalid. + */ + size = (cgx_cnt_max * rvu->hw->lmac_per_cgx + 1) * sizeof(u8); + rvu->pf2cgxlmac_map = devm_kmalloc(rvu->dev, size, GFP_KERNEL); + if (!rvu->pf2cgxlmac_map) + return -ENOMEM; + + /* Initialize all entries with an invalid cgx and lmac id */ + memset(rvu->pf2cgxlmac_map, 0xFF, size); + + /* Reverse map table */ + rvu->cgxlmac2pf_map = + devm_kzalloc(rvu->dev, + cgx_cnt_max * rvu->hw->lmac_per_cgx * sizeof(u64), + GFP_KERNEL); + if (!rvu->cgxlmac2pf_map) + return -ENOMEM; + + rvu->cgx_mapped_pfs = 0; + for (cgx = 0; cgx < cgx_cnt_max; cgx++) { + if (!rvu_cgx_pdata(cgx, rvu)) + continue; + lmac_bmap = cgx_get_lmac_bmap(rvu_cgx_pdata(cgx, rvu)); + for_each_set_bit(iter, &lmac_bmap, rvu->hw->lmac_per_cgx) { + lmac = cgx_get_lmacid(rvu_cgx_pdata(cgx, rvu), + iter); + rvu->pf2cgxlmac_map[pf] = cgxlmac_id_to_bmap(cgx, lmac); + rvu->cgxlmac2pf_map[CGX_OFFSET(cgx) + lmac] = 1 << pf; + free_pkind = rvu_alloc_rsrc(&pkind->rsrc); + pkind->pfchan_map[free_pkind] = ((pf) & 0x3F) << 16; + rvu_map_cgx_nix_block(rvu, pf, cgx, lmac); + rvu->cgx_mapped_pfs++; + rvu_get_pf_numvfs(rvu, pf, &numvfs, &hwvfs); + rvu->cgx_mapped_vfs += numvfs; + pf++; + } + } + return 0; +} + +static int rvu_cgx_send_link_info(int cgx_id, int lmac_id, struct rvu *rvu) +{ + struct cgx_evq_entry *qentry; + unsigned long flags; + int err; + + qentry = kmalloc(sizeof(*qentry), GFP_KERNEL); + if (!qentry) + return -ENOMEM; + + /* Lock the event queue before we read the local link status */ + spin_lock_irqsave(&rvu->cgx_evq_lock, flags); + err = cgx_get_link_info(rvu_cgx_pdata(cgx_id, rvu), lmac_id, + &qentry->link_event.link_uinfo); + qentry->link_event.cgx_id = cgx_id; + qentry->link_event.lmac_id = lmac_id; + if (err) { + kfree(qentry); + goto skip_add; + } + list_add_tail(&qentry->evq_node, &rvu->cgx_evq_head); +skip_add: + spin_unlock_irqrestore(&rvu->cgx_evq_lock, flags); + + /* start worker to process the events */ + queue_work(rvu->cgx_evh_wq, &rvu->cgx_evh_work); + + return 0; +} + +/* This is called from interrupt context and is expected to be atomic */ +static int cgx_lmac_postevent(struct cgx_link_event *event, void *data) +{ + struct cgx_evq_entry *qentry; + struct rvu *rvu = data; + + /* post event to the event queue */ + qentry = kmalloc(sizeof(*qentry), GFP_ATOMIC); + if (!qentry) + return -ENOMEM; + qentry->link_event = *event; + spin_lock(&rvu->cgx_evq_lock); + list_add_tail(&qentry->evq_node, &rvu->cgx_evq_head); + spin_unlock(&rvu->cgx_evq_lock); + + /* start worker to process the events */ + queue_work(rvu->cgx_evh_wq, &rvu->cgx_evh_work); + + return 0; +} + +static void cgx_notify_pfs(struct cgx_link_event *event, struct rvu *rvu) +{ + struct cgx_link_user_info *linfo; + struct cgx_link_info_msg *msg; + unsigned long pfmap; + int err, pfid; + + linfo = &event->link_uinfo; + pfmap = cgxlmac_to_pfmap(rvu, event->cgx_id, event->lmac_id); + + do { + pfid = find_first_bit(&pfmap, + rvu->cgx_cnt_max * rvu->hw->lmac_per_cgx); + clear_bit(pfid, &pfmap); + + /* check if notification is enabled */ + if (!test_bit(pfid, &rvu->pf_notify_bmap)) { + dev_info(rvu->dev, "cgx %d: lmac %d Link status %s\n", + event->cgx_id, event->lmac_id, + linfo->link_up ? "UP" : "DOWN"); + continue; + } + + /* Send mbox message to PF */ + msg = otx2_mbox_alloc_msg_cgx_link_event(rvu, pfid); + if (!msg) + continue; + msg->link_info = *linfo; + otx2_mbox_msg_send(&rvu->afpf_wq_info.mbox_up, pfid); + err = otx2_mbox_wait_for_rsp(&rvu->afpf_wq_info.mbox_up, pfid); + if (err) + dev_warn(rvu->dev, "notification to pf %d failed\n", + pfid); + } while (pfmap); +} + +static void cgx_evhandler_task(struct work_struct *work) +{ + struct rvu *rvu = container_of(work, struct rvu, cgx_evh_work); + struct cgx_evq_entry *qentry; + struct cgx_link_event *event; + unsigned long flags; + + do { + /* Dequeue an event */ + spin_lock_irqsave(&rvu->cgx_evq_lock, flags); + qentry = list_first_entry_or_null(&rvu->cgx_evq_head, + struct cgx_evq_entry, + evq_node); + if (qentry) + list_del(&qentry->evq_node); + spin_unlock_irqrestore(&rvu->cgx_evq_lock, flags); + if (!qentry) + break; /* nothing more to process */ + + event = &qentry->link_event; + + /* process event */ + cgx_notify_pfs(event, rvu); + kfree(qentry); + } while (1); +} + +static int cgx_lmac_event_handler_init(struct rvu *rvu) +{ + unsigned long lmac_bmap; + struct cgx_event_cb cb; + int cgx, lmac, err; + void *cgxd; + + spin_lock_init(&rvu->cgx_evq_lock); + INIT_LIST_HEAD(&rvu->cgx_evq_head); + INIT_WORK(&rvu->cgx_evh_work, cgx_evhandler_task); + rvu->cgx_evh_wq = alloc_workqueue("rvu_evh_wq", 0, 0); + if (!rvu->cgx_evh_wq) { + dev_err(rvu->dev, "alloc workqueue failed"); + return -ENOMEM; + } + + cb.notify_link_chg = cgx_lmac_postevent; /* link change call back */ + cb.data = rvu; + + for (cgx = 0; cgx <= rvu->cgx_cnt_max; cgx++) { + cgxd = rvu_cgx_pdata(cgx, rvu); + if (!cgxd) + continue; + lmac_bmap = cgx_get_lmac_bmap(cgxd); + for_each_set_bit(lmac, &lmac_bmap, rvu->hw->lmac_per_cgx) { + err = cgx_lmac_evh_register(&cb, cgxd, lmac); + if (err) + dev_err(rvu->dev, + "%d:%d handler register failed\n", + cgx, lmac); + } + } + + return 0; +} + +static void rvu_cgx_wq_destroy(struct rvu *rvu) +{ + if (rvu->cgx_evh_wq) { + destroy_workqueue(rvu->cgx_evh_wq); + rvu->cgx_evh_wq = NULL; + } +} + +int rvu_cgx_init(struct rvu *rvu) +{ + int cgx, err; + void *cgxd; + + /* CGX port id starts from 0 and are not necessarily contiguous + * Hence we allocate resources based on the maximum port id value. + */ + rvu->cgx_cnt_max = cgx_get_cgxcnt_max(); + if (!rvu->cgx_cnt_max) { + dev_info(rvu->dev, "No CGX devices found!\n"); + return -ENODEV; + } + + rvu->cgx_idmap = devm_kzalloc(rvu->dev, rvu->cgx_cnt_max * + sizeof(void *), GFP_KERNEL); + if (!rvu->cgx_idmap) + return -ENOMEM; + + /* Initialize the cgxdata table */ + for (cgx = 0; cgx < rvu->cgx_cnt_max; cgx++) + rvu->cgx_idmap[cgx] = cgx_get_pdata(cgx); + + /* Map CGX LMAC interfaces to RVU PFs */ + err = rvu_map_cgx_lmac_pf(rvu); + if (err) + return err; + + /* Register for CGX events */ + err = cgx_lmac_event_handler_init(rvu); + if (err) + return err; + + mutex_init(&rvu->cgx_cfg_lock); + + /* Ensure event handler registration is completed, before + * we turn on the links + */ + mb(); + + /* Do link up for all CGX ports */ + for (cgx = 0; cgx <= rvu->cgx_cnt_max; cgx++) { + cgxd = rvu_cgx_pdata(cgx, rvu); + if (!cgxd) + continue; + err = cgx_lmac_linkup_start(cgxd); + if (err) + dev_err(rvu->dev, + "Link up process failed to start on cgx %d\n", + cgx); + } + + return 0; +} + +int rvu_cgx_exit(struct rvu *rvu) +{ + unsigned long lmac_bmap; + int cgx, lmac; + void *cgxd; + + for (cgx = 0; cgx <= rvu->cgx_cnt_max; cgx++) { + cgxd = rvu_cgx_pdata(cgx, rvu); + if (!cgxd) + continue; + lmac_bmap = cgx_get_lmac_bmap(cgxd); + for_each_set_bit(lmac, &lmac_bmap, rvu->hw->lmac_per_cgx) + cgx_lmac_evh_unregister(cgxd, lmac); + } + + /* Ensure event handler unregister is completed */ + mb(); + + rvu_cgx_wq_destroy(rvu); + return 0; +} + +/* Most of the CGX configuration is restricted to the mapped PF only, + * VF's of mapped PF and other PFs are not allowed. This fn() checks + * whether a PFFUNC is permitted to do the config or not. + */ +inline bool is_cgx_config_permitted(struct rvu *rvu, u16 pcifunc) +{ + if ((pcifunc & RVU_PFVF_FUNC_MASK) || + !is_pf_cgxmapped(rvu, rvu_get_pf(pcifunc))) + return false; + return true; +} + +void rvu_cgx_enadis_rx_bp(struct rvu *rvu, int pf, bool enable) +{ + struct mac_ops *mac_ops; + u8 cgx_id, lmac_id; + void *cgxd; + + if (!is_pf_cgxmapped(rvu, pf)) + return; + + rvu_get_cgx_lmac_id(rvu->pf2cgxlmac_map[pf], &cgx_id, &lmac_id); + cgxd = rvu_cgx_pdata(cgx_id, rvu); + + mac_ops = get_mac_ops(cgxd); + /* Set / clear CTL_BCK to control pause frame forwarding to NIX */ + if (enable) + mac_ops->mac_enadis_rx_pause_fwding(cgxd, lmac_id, true); + else + mac_ops->mac_enadis_rx_pause_fwding(cgxd, lmac_id, false); +} + +int rvu_cgx_config_rxtx(struct rvu *rvu, u16 pcifunc, bool start) +{ + int pf = rvu_get_pf(pcifunc); + struct mac_ops *mac_ops; + u8 cgx_id, lmac_id; + void *cgxd; + + if (!is_cgx_config_permitted(rvu, pcifunc)) + return LMAC_AF_ERR_PERM_DENIED; + + rvu_get_cgx_lmac_id(rvu->pf2cgxlmac_map[pf], &cgx_id, &lmac_id); + cgxd = rvu_cgx_pdata(cgx_id, rvu); + mac_ops = get_mac_ops(cgxd); + + return mac_ops->mac_rx_tx_enable(cgxd, lmac_id, start); +} + +int rvu_cgx_tx_enable(struct rvu *rvu, u16 pcifunc, bool enable) +{ + int pf = rvu_get_pf(pcifunc); + struct mac_ops *mac_ops; + u8 cgx_id, lmac_id; + void *cgxd; + + if (!is_cgx_config_permitted(rvu, pcifunc)) + return LMAC_AF_ERR_PERM_DENIED; + + rvu_get_cgx_lmac_id(rvu->pf2cgxlmac_map[pf], &cgx_id, &lmac_id); + cgxd = rvu_cgx_pdata(cgx_id, rvu); + mac_ops = get_mac_ops(cgxd); + + return mac_ops->mac_tx_enable(cgxd, lmac_id, enable); +} + +int rvu_cgx_config_tx(void *cgxd, int lmac_id, bool enable) +{ + struct mac_ops *mac_ops; + + mac_ops = get_mac_ops(cgxd); + return mac_ops->mac_tx_enable(cgxd, lmac_id, enable); +} + +void rvu_cgx_disable_dmac_entries(struct rvu *rvu, u16 pcifunc) +{ + int pf = rvu_get_pf(pcifunc); + int i = 0, lmac_count = 0; + u8 max_dmac_filters; + u8 cgx_id, lmac_id; + void *cgx_dev; + + if (!is_cgx_config_permitted(rvu, pcifunc)) + return; + + if (rvu_npc_exact_has_match_table(rvu)) { + rvu_npc_exact_reset(rvu, pcifunc); + return; + } + + rvu_get_cgx_lmac_id(rvu->pf2cgxlmac_map[pf], &cgx_id, &lmac_id); + cgx_dev = cgx_get_pdata(cgx_id); + lmac_count = cgx_get_lmac_cnt(cgx_dev); + max_dmac_filters = MAX_DMAC_ENTRIES_PER_CGX / lmac_count; + + for (i = 0; i < max_dmac_filters; i++) + cgx_lmac_addr_del(cgx_id, lmac_id, i); + + /* As cgx_lmac_addr_del does not clear entry for index 0 + * so it needs to be done explicitly + */ + cgx_lmac_addr_reset(cgx_id, lmac_id); +} + +int rvu_mbox_handler_cgx_start_rxtx(struct rvu *rvu, struct msg_req *req, + struct msg_rsp *rsp) +{ + rvu_cgx_config_rxtx(rvu, req->hdr.pcifunc, true); + return 0; +} + +int rvu_mbox_handler_cgx_stop_rxtx(struct rvu *rvu, struct msg_req *req, + struct msg_rsp *rsp) +{ + rvu_cgx_config_rxtx(rvu, req->hdr.pcifunc, false); + return 0; +} + +static int rvu_lmac_get_stats(struct rvu *rvu, struct msg_req *req, + void *rsp) +{ + int pf = rvu_get_pf(req->hdr.pcifunc); + struct mac_ops *mac_ops; + int stat = 0, err = 0; + u64 tx_stat, rx_stat; + u8 cgx_idx, lmac; + void *cgxd; + + if (!is_cgx_config_permitted(rvu, req->hdr.pcifunc)) + return LMAC_AF_ERR_PERM_DENIED; + + rvu_get_cgx_lmac_id(rvu->pf2cgxlmac_map[pf], &cgx_idx, &lmac); + cgxd = rvu_cgx_pdata(cgx_idx, rvu); + mac_ops = get_mac_ops(cgxd); + + /* Rx stats */ + while (stat < mac_ops->rx_stats_cnt) { + err = mac_ops->mac_get_rx_stats(cgxd, lmac, stat, &rx_stat); + if (err) + return err; + if (mac_ops->rx_stats_cnt == RPM_RX_STATS_COUNT) + ((struct rpm_stats_rsp *)rsp)->rx_stats[stat] = rx_stat; + else + ((struct cgx_stats_rsp *)rsp)->rx_stats[stat] = rx_stat; + stat++; + } + + /* Tx stats */ + stat = 0; + while (stat < mac_ops->tx_stats_cnt) { + err = mac_ops->mac_get_tx_stats(cgxd, lmac, stat, &tx_stat); + if (err) + return err; + if (mac_ops->tx_stats_cnt == RPM_TX_STATS_COUNT) + ((struct rpm_stats_rsp *)rsp)->tx_stats[stat] = tx_stat; + else + ((struct cgx_stats_rsp *)rsp)->tx_stats[stat] = tx_stat; + stat++; + } + return 0; +} + +int rvu_mbox_handler_cgx_stats(struct rvu *rvu, struct msg_req *req, + struct cgx_stats_rsp *rsp) +{ + return rvu_lmac_get_stats(rvu, req, (void *)rsp); +} + +int rvu_mbox_handler_rpm_stats(struct rvu *rvu, struct msg_req *req, + struct rpm_stats_rsp *rsp) +{ + return rvu_lmac_get_stats(rvu, req, (void *)rsp); +} + +int rvu_mbox_handler_cgx_fec_stats(struct rvu *rvu, + struct msg_req *req, + struct cgx_fec_stats_rsp *rsp) +{ + int pf = rvu_get_pf(req->hdr.pcifunc); + u8 cgx_idx, lmac; + void *cgxd; + + if (!is_cgx_config_permitted(rvu, req->hdr.pcifunc)) + return LMAC_AF_ERR_PERM_DENIED; + rvu_get_cgx_lmac_id(rvu->pf2cgxlmac_map[pf], &cgx_idx, &lmac); + + cgxd = rvu_cgx_pdata(cgx_idx, rvu); + return cgx_get_fec_stats(cgxd, lmac, rsp); +} + +int rvu_mbox_handler_cgx_mac_addr_set(struct rvu *rvu, + struct cgx_mac_addr_set_or_get *req, + struct cgx_mac_addr_set_or_get *rsp) +{ + int pf = rvu_get_pf(req->hdr.pcifunc); + u8 cgx_id, lmac_id; + + if (!is_cgx_config_permitted(rvu, req->hdr.pcifunc)) + return -EPERM; + + if (rvu_npc_exact_has_match_table(rvu)) + return rvu_npc_exact_mac_addr_set(rvu, req, rsp); + + rvu_get_cgx_lmac_id(rvu->pf2cgxlmac_map[pf], &cgx_id, &lmac_id); + + cgx_lmac_addr_set(cgx_id, lmac_id, req->mac_addr); + + return 0; +} + +int rvu_mbox_handler_cgx_mac_addr_add(struct rvu *rvu, + struct cgx_mac_addr_add_req *req, + struct cgx_mac_addr_add_rsp *rsp) +{ + int pf = rvu_get_pf(req->hdr.pcifunc); + u8 cgx_id, lmac_id; + int rc = 0; + + if (!is_cgx_config_permitted(rvu, req->hdr.pcifunc)) + return -EPERM; + + if (rvu_npc_exact_has_match_table(rvu)) + return rvu_npc_exact_mac_addr_add(rvu, req, rsp); + + rvu_get_cgx_lmac_id(rvu->pf2cgxlmac_map[pf], &cgx_id, &lmac_id); + rc = cgx_lmac_addr_add(cgx_id, lmac_id, req->mac_addr); + if (rc >= 0) { + rsp->index = rc; + return 0; + } + + return rc; +} + +int rvu_mbox_handler_cgx_mac_addr_del(struct rvu *rvu, + struct cgx_mac_addr_del_req *req, + struct msg_rsp *rsp) +{ + int pf = rvu_get_pf(req->hdr.pcifunc); + u8 cgx_id, lmac_id; + + if (!is_cgx_config_permitted(rvu, req->hdr.pcifunc)) + return -EPERM; + + if (rvu_npc_exact_has_match_table(rvu)) + return rvu_npc_exact_mac_addr_del(rvu, req, rsp); + + rvu_get_cgx_lmac_id(rvu->pf2cgxlmac_map[pf], &cgx_id, &lmac_id); + return cgx_lmac_addr_del(cgx_id, lmac_id, req->index); +} + +int rvu_mbox_handler_cgx_mac_max_entries_get(struct rvu *rvu, + struct msg_req *req, + struct cgx_max_dmac_entries_get_rsp + *rsp) +{ + int pf = rvu_get_pf(req->hdr.pcifunc); + u8 cgx_id, lmac_id; + + /* If msg is received from PFs(which are not mapped to CGX LMACs) + * or VF then no entries are allocated for DMAC filters at CGX level. + * So returning zero. + */ + if (!is_cgx_config_permitted(rvu, req->hdr.pcifunc)) { + rsp->max_dmac_filters = 0; + return 0; + } + + if (rvu_npc_exact_has_match_table(rvu)) { + rsp->max_dmac_filters = rvu_npc_exact_get_max_entries(rvu); + return 0; + } + + rvu_get_cgx_lmac_id(rvu->pf2cgxlmac_map[pf], &cgx_id, &lmac_id); + rsp->max_dmac_filters = cgx_lmac_addr_max_entries_get(cgx_id, lmac_id); + return 0; +} + +int rvu_mbox_handler_cgx_mac_addr_get(struct rvu *rvu, + struct cgx_mac_addr_set_or_get *req, + struct cgx_mac_addr_set_or_get *rsp) +{ + int pf = rvu_get_pf(req->hdr.pcifunc); + u8 cgx_id, lmac_id; + int rc = 0, i; + u64 cfg; + + if (!is_cgx_config_permitted(rvu, req->hdr.pcifunc)) + return -EPERM; + + rvu_get_cgx_lmac_id(rvu->pf2cgxlmac_map[pf], &cgx_id, &lmac_id); + + rsp->hdr.rc = rc; + cfg = cgx_lmac_addr_get(cgx_id, lmac_id); + /* copy 48 bit mac address to req->mac_addr */ + for (i = 0; i < ETH_ALEN; i++) + rsp->mac_addr[i] = cfg >> (ETH_ALEN - 1 - i) * 8; + return 0; +} + +int rvu_mbox_handler_cgx_promisc_enable(struct rvu *rvu, struct msg_req *req, + struct msg_rsp *rsp) +{ + u16 pcifunc = req->hdr.pcifunc; + int pf = rvu_get_pf(pcifunc); + u8 cgx_id, lmac_id; + + if (!is_cgx_config_permitted(rvu, req->hdr.pcifunc)) + return -EPERM; + + /* Disable drop on non hit rule */ + if (rvu_npc_exact_has_match_table(rvu)) + return rvu_npc_exact_promisc_enable(rvu, req->hdr.pcifunc); + + rvu_get_cgx_lmac_id(rvu->pf2cgxlmac_map[pf], &cgx_id, &lmac_id); + + cgx_lmac_promisc_config(cgx_id, lmac_id, true); + return 0; +} + +int rvu_mbox_handler_cgx_promisc_disable(struct rvu *rvu, struct msg_req *req, + struct msg_rsp *rsp) +{ + int pf = rvu_get_pf(req->hdr.pcifunc); + u8 cgx_id, lmac_id; + + if (!is_cgx_config_permitted(rvu, req->hdr.pcifunc)) + return -EPERM; + + /* Disable drop on non hit rule */ + if (rvu_npc_exact_has_match_table(rvu)) + return rvu_npc_exact_promisc_disable(rvu, req->hdr.pcifunc); + + rvu_get_cgx_lmac_id(rvu->pf2cgxlmac_map[pf], &cgx_id, &lmac_id); + + cgx_lmac_promisc_config(cgx_id, lmac_id, false); + return 0; +} + +static int rvu_cgx_ptp_rx_cfg(struct rvu *rvu, u16 pcifunc, bool enable) +{ + struct rvu_pfvf *pfvf = rvu_get_pfvf(rvu, pcifunc); + int pf = rvu_get_pf(pcifunc); + struct mac_ops *mac_ops; + u8 cgx_id, lmac_id; + void *cgxd; + + if (!is_mac_feature_supported(rvu, pf, RVU_LMAC_FEAT_PTP)) + return 0; + + /* This msg is expected only from PFs that are mapped to CGX LMACs, + * if received from other PF/VF simply ACK, nothing to do. + */ + if ((pcifunc & RVU_PFVF_FUNC_MASK) || + !is_pf_cgxmapped(rvu, pf)) + return -ENODEV; + + rvu_get_cgx_lmac_id(rvu->pf2cgxlmac_map[pf], &cgx_id, &lmac_id); + cgxd = rvu_cgx_pdata(cgx_id, rvu); + + mac_ops = get_mac_ops(cgxd); + mac_ops->mac_enadis_ptp_config(cgxd, lmac_id, enable); + /* If PTP is enabled then inform NPC that packets to be + * parsed by this PF will have their data shifted by 8 bytes + * and if PTP is disabled then no shift is required + */ + if (npc_config_ts_kpuaction(rvu, pf, pcifunc, enable)) + return -EINVAL; + /* This flag is required to clean up CGX conf if app gets killed */ + pfvf->hw_rx_tstamp_en = enable; + + /* Inform MCS about 8B RX header */ + rvu_mcs_ptp_cfg(rvu, cgx_id, lmac_id, enable); + return 0; +} + +int rvu_mbox_handler_cgx_ptp_rx_enable(struct rvu *rvu, struct msg_req *req, + struct msg_rsp *rsp) +{ + if (!is_pf_cgxmapped(rvu, rvu_get_pf(req->hdr.pcifunc))) + return -EPERM; + + return rvu_cgx_ptp_rx_cfg(rvu, req->hdr.pcifunc, true); +} + +int rvu_mbox_handler_cgx_ptp_rx_disable(struct rvu *rvu, struct msg_req *req, + struct msg_rsp *rsp) +{ + return rvu_cgx_ptp_rx_cfg(rvu, req->hdr.pcifunc, false); +} + +static int rvu_cgx_config_linkevents(struct rvu *rvu, u16 pcifunc, bool en) +{ + int pf = rvu_get_pf(pcifunc); + u8 cgx_id, lmac_id; + + if (!is_cgx_config_permitted(rvu, pcifunc)) + return -EPERM; + + rvu_get_cgx_lmac_id(rvu->pf2cgxlmac_map[pf], &cgx_id, &lmac_id); + + if (en) { + set_bit(pf, &rvu->pf_notify_bmap); + /* Send the current link status to PF */ + rvu_cgx_send_link_info(cgx_id, lmac_id, rvu); + } else { + clear_bit(pf, &rvu->pf_notify_bmap); + } + + return 0; +} + +int rvu_mbox_handler_cgx_start_linkevents(struct rvu *rvu, struct msg_req *req, + struct msg_rsp *rsp) +{ + rvu_cgx_config_linkevents(rvu, req->hdr.pcifunc, true); + return 0; +} + +int rvu_mbox_handler_cgx_stop_linkevents(struct rvu *rvu, struct msg_req *req, + struct msg_rsp *rsp) +{ + rvu_cgx_config_linkevents(rvu, req->hdr.pcifunc, false); + return 0; +} + +int rvu_mbox_handler_cgx_get_linkinfo(struct rvu *rvu, struct msg_req *req, + struct cgx_link_info_msg *rsp) +{ + u8 cgx_id, lmac_id; + int pf, err; + + pf = rvu_get_pf(req->hdr.pcifunc); + + if (!is_pf_cgxmapped(rvu, pf)) + return -ENODEV; + + rvu_get_cgx_lmac_id(rvu->pf2cgxlmac_map[pf], &cgx_id, &lmac_id); + + err = cgx_get_link_info(rvu_cgx_pdata(cgx_id, rvu), lmac_id, + &rsp->link_info); + return err; +} + +int rvu_mbox_handler_cgx_features_get(struct rvu *rvu, + struct msg_req *req, + struct cgx_features_info_msg *rsp) +{ + int pf = rvu_get_pf(req->hdr.pcifunc); + u8 cgx_idx, lmac; + void *cgxd; + + if (!is_pf_cgxmapped(rvu, pf)) + return 0; + + rvu_get_cgx_lmac_id(rvu->pf2cgxlmac_map[pf], &cgx_idx, &lmac); + cgxd = rvu_cgx_pdata(cgx_idx, rvu); + rsp->lmac_features = cgx_features_get(cgxd); + + return 0; +} + +u32 rvu_cgx_get_fifolen(struct rvu *rvu) +{ + struct mac_ops *mac_ops; + u32 fifo_len; + + mac_ops = get_mac_ops(rvu_first_cgx_pdata(rvu)); + fifo_len = mac_ops ? mac_ops->fifo_len : 0; + + return fifo_len; +} + +u32 rvu_cgx_get_lmac_fifolen(struct rvu *rvu, int cgx, int lmac) +{ + struct mac_ops *mac_ops; + void *cgxd; + + cgxd = rvu_cgx_pdata(cgx, rvu); + if (!cgxd) + return 0; + + mac_ops = get_mac_ops(cgxd); + if (!mac_ops->lmac_fifo_len) + return 0; + + return mac_ops->lmac_fifo_len(cgxd, lmac); +} + +static int rvu_cgx_config_intlbk(struct rvu *rvu, u16 pcifunc, bool en) +{ + int pf = rvu_get_pf(pcifunc); + struct mac_ops *mac_ops; + u8 cgx_id, lmac_id; + + if (!is_cgx_config_permitted(rvu, pcifunc)) + return -EPERM; + + rvu_get_cgx_lmac_id(rvu->pf2cgxlmac_map[pf], &cgx_id, &lmac_id); + mac_ops = get_mac_ops(rvu_cgx_pdata(cgx_id, rvu)); + + return mac_ops->mac_lmac_intl_lbk(rvu_cgx_pdata(cgx_id, rvu), + lmac_id, en); +} + +int rvu_mbox_handler_cgx_intlbk_enable(struct rvu *rvu, struct msg_req *req, + struct msg_rsp *rsp) +{ + rvu_cgx_config_intlbk(rvu, req->hdr.pcifunc, true); + return 0; +} + +int rvu_mbox_handler_cgx_intlbk_disable(struct rvu *rvu, struct msg_req *req, + struct msg_rsp *rsp) +{ + rvu_cgx_config_intlbk(rvu, req->hdr.pcifunc, false); + return 0; +} + +int rvu_cgx_cfg_pause_frm(struct rvu *rvu, u16 pcifunc, u8 tx_pause, u8 rx_pause) +{ + int pf = rvu_get_pf(pcifunc); + u8 rx_pfc = 0, tx_pfc = 0; + struct mac_ops *mac_ops; + u8 cgx_id, lmac_id; + void *cgxd; + + if (!is_mac_feature_supported(rvu, pf, RVU_LMAC_FEAT_FC)) + return 0; + + /* This msg is expected only from PF/VFs that are mapped to CGX LMACs, + * if received from other PF/VF simply ACK, nothing to do. + */ + if (!is_pf_cgxmapped(rvu, pf)) + return LMAC_AF_ERR_PF_NOT_MAPPED; + + rvu_get_cgx_lmac_id(rvu->pf2cgxlmac_map[pf], &cgx_id, &lmac_id); + cgxd = rvu_cgx_pdata(cgx_id, rvu); + mac_ops = get_mac_ops(cgxd); + + mac_ops->mac_get_pfc_frm_cfg(cgxd, lmac_id, &tx_pfc, &rx_pfc); + if (tx_pfc || rx_pfc) { + dev_warn(rvu->dev, + "Can not configure 802.3X flow control as PFC frames are enabled"); + return LMAC_AF_ERR_8023PAUSE_ENADIS_PERM_DENIED; + } + + mutex_lock(&rvu->rsrc_lock); + if (verify_lmac_fc_cfg(cgxd, lmac_id, tx_pause, rx_pause, + pcifunc & RVU_PFVF_FUNC_MASK)) { + mutex_unlock(&rvu->rsrc_lock); + return LMAC_AF_ERR_PERM_DENIED; + } + mutex_unlock(&rvu->rsrc_lock); + + return mac_ops->mac_enadis_pause_frm(cgxd, lmac_id, tx_pause, rx_pause); +} + +int rvu_mbox_handler_cgx_cfg_pause_frm(struct rvu *rvu, + struct cgx_pause_frm_cfg *req, + struct cgx_pause_frm_cfg *rsp) +{ + int pf = rvu_get_pf(req->hdr.pcifunc); + struct mac_ops *mac_ops; + u8 cgx_id, lmac_id; + int err = 0; + void *cgxd; + + /* This msg is expected only from PF/VFs that are mapped to CGX LMACs, + * if received from other PF/VF simply ACK, nothing to do. + */ + if (!is_pf_cgxmapped(rvu, pf)) + return -ENODEV; + + rvu_get_cgx_lmac_id(rvu->pf2cgxlmac_map[pf], &cgx_id, &lmac_id); + cgxd = rvu_cgx_pdata(cgx_id, rvu); + mac_ops = get_mac_ops(cgxd); + + if (req->set) + err = rvu_cgx_cfg_pause_frm(rvu, req->hdr.pcifunc, req->tx_pause, req->rx_pause); + else + mac_ops->mac_get_pause_frm_status(cgxd, lmac_id, &rsp->tx_pause, &rsp->rx_pause); + + return err; +} + +int rvu_mbox_handler_cgx_get_phy_fec_stats(struct rvu *rvu, struct msg_req *req, + struct msg_rsp *rsp) +{ + int pf = rvu_get_pf(req->hdr.pcifunc); + u8 cgx_id, lmac_id; + + if (!is_pf_cgxmapped(rvu, pf)) + return LMAC_AF_ERR_PF_NOT_MAPPED; + + rvu_get_cgx_lmac_id(rvu->pf2cgxlmac_map[pf], &cgx_id, &lmac_id); + return cgx_get_phy_fec_stats(rvu_cgx_pdata(cgx_id, rvu), lmac_id); +} + +/* Finds cumulative status of NIX rx/tx counters from LF of a PF and those + * from its VFs as well. ie. NIX rx/tx counters at the CGX port level + */ +int rvu_cgx_nix_cuml_stats(struct rvu *rvu, void *cgxd, int lmac_id, + int index, int rxtxflag, u64 *stat) +{ + struct rvu_block *block; + int blkaddr; + u16 pcifunc; + int pf, lf; + + *stat = 0; + + if (!cgxd || !rvu) + return -EINVAL; + + pf = cgxlmac_to_pf(rvu, cgx_get_cgxid(cgxd), lmac_id); + if (pf < 0) + return pf; + + /* Assumes LF of a PF and all of its VF belongs to the same + * NIX block + */ + pcifunc = pf << RVU_PFVF_PF_SHIFT; + blkaddr = rvu_get_blkaddr(rvu, BLKTYPE_NIX, pcifunc); + if (blkaddr < 0) + return 0; + block = &rvu->hw->block[blkaddr]; + + for (lf = 0; lf < block->lf.max; lf++) { + /* Check if a lf is attached to this PF or one of its VFs */ + if (!((block->fn_map[lf] & ~RVU_PFVF_FUNC_MASK) == (pcifunc & + ~RVU_PFVF_FUNC_MASK))) + continue; + if (rxtxflag == NIX_STATS_RX) + *stat += rvu_read64(rvu, blkaddr, + NIX_AF_LFX_RX_STATX(lf, index)); + else + *stat += rvu_read64(rvu, blkaddr, + NIX_AF_LFX_TX_STATX(lf, index)); + } + + return 0; +} + +int rvu_cgx_start_stop_io(struct rvu *rvu, u16 pcifunc, bool start) +{ + struct rvu_pfvf *parent_pf, *pfvf; + int cgx_users, err = 0; + + if (!is_pf_cgxmapped(rvu, rvu_get_pf(pcifunc))) + return 0; + + parent_pf = &rvu->pf[rvu_get_pf(pcifunc)]; + pfvf = rvu_get_pfvf(rvu, pcifunc); + + mutex_lock(&rvu->cgx_cfg_lock); + + if (start && pfvf->cgx_in_use) + goto exit; /* CGX is already started hence nothing to do */ + if (!start && !pfvf->cgx_in_use) + goto exit; /* CGX is already stopped hence nothing to do */ + + if (start) { + cgx_users = parent_pf->cgx_users; + parent_pf->cgx_users++; + } else { + parent_pf->cgx_users--; + cgx_users = parent_pf->cgx_users; + } + + /* Start CGX when first of all NIXLFs is started. + * Stop CGX when last of all NIXLFs is stopped. + */ + if (!cgx_users) { + err = rvu_cgx_config_rxtx(rvu, pcifunc & ~RVU_PFVF_FUNC_MASK, + start); + if (err) { + dev_err(rvu->dev, "Unable to %s CGX\n", + start ? "start" : "stop"); + /* Revert the usage count in case of error */ + parent_pf->cgx_users = start ? parent_pf->cgx_users - 1 + : parent_pf->cgx_users + 1; + goto exit; + } + } + pfvf->cgx_in_use = start; +exit: + mutex_unlock(&rvu->cgx_cfg_lock); + return err; +} + +int rvu_mbox_handler_cgx_set_fec_param(struct rvu *rvu, + struct fec_mode *req, + struct fec_mode *rsp) +{ + int pf = rvu_get_pf(req->hdr.pcifunc); + u8 cgx_id, lmac_id; + + if (!is_pf_cgxmapped(rvu, pf)) + return -EPERM; + + if (req->fec == OTX2_FEC_OFF) + req->fec = OTX2_FEC_NONE; + rvu_get_cgx_lmac_id(rvu->pf2cgxlmac_map[pf], &cgx_id, &lmac_id); + rsp->fec = cgx_set_fec(req->fec, cgx_id, lmac_id); + return 0; +} + +int rvu_mbox_handler_cgx_get_aux_link_info(struct rvu *rvu, struct msg_req *req, + struct cgx_fw_data *rsp) +{ + int pf = rvu_get_pf(req->hdr.pcifunc); + u8 cgx_id, lmac_id; + + if (!rvu->fwdata) + return LMAC_AF_ERR_FIRMWARE_DATA_NOT_MAPPED; + + if (!is_pf_cgxmapped(rvu, pf)) + return -EPERM; + + rvu_get_cgx_lmac_id(rvu->pf2cgxlmac_map[pf], &cgx_id, &lmac_id); + + memcpy(&rsp->fwdata, &rvu->fwdata->cgx_fw_data[cgx_id][lmac_id], + sizeof(struct cgx_lmac_fwdata_s)); + return 0; +} + +int rvu_mbox_handler_cgx_set_link_mode(struct rvu *rvu, + struct cgx_set_link_mode_req *req, + struct cgx_set_link_mode_rsp *rsp) +{ + int pf = rvu_get_pf(req->hdr.pcifunc); + u8 cgx_idx, lmac; + void *cgxd; + + if (!is_cgx_config_permitted(rvu, req->hdr.pcifunc)) + return -EPERM; + + rvu_get_cgx_lmac_id(rvu->pf2cgxlmac_map[pf], &cgx_idx, &lmac); + cgxd = rvu_cgx_pdata(cgx_idx, rvu); + rsp->status = cgx_set_link_mode(cgxd, req->args, cgx_idx, lmac); + return 0; +} + +int rvu_mbox_handler_cgx_mac_addr_reset(struct rvu *rvu, struct cgx_mac_addr_reset_req *req, + struct msg_rsp *rsp) +{ + int pf = rvu_get_pf(req->hdr.pcifunc); + u8 cgx_id, lmac_id; + + if (!is_cgx_config_permitted(rvu, req->hdr.pcifunc)) + return LMAC_AF_ERR_PERM_DENIED; + + rvu_get_cgx_lmac_id(rvu->pf2cgxlmac_map[pf], &cgx_id, &lmac_id); + + if (rvu_npc_exact_has_match_table(rvu)) + return rvu_npc_exact_mac_addr_reset(rvu, req, rsp); + + return cgx_lmac_addr_reset(cgx_id, lmac_id); +} + +int rvu_mbox_handler_cgx_mac_addr_update(struct rvu *rvu, + struct cgx_mac_addr_update_req *req, + struct cgx_mac_addr_update_rsp *rsp) +{ + int pf = rvu_get_pf(req->hdr.pcifunc); + u8 cgx_id, lmac_id; + + if (!is_cgx_config_permitted(rvu, req->hdr.pcifunc)) + return LMAC_AF_ERR_PERM_DENIED; + + if (rvu_npc_exact_has_match_table(rvu)) + return rvu_npc_exact_mac_addr_update(rvu, req, rsp); + + rvu_get_cgx_lmac_id(rvu->pf2cgxlmac_map[pf], &cgx_id, &lmac_id); + return cgx_lmac_addr_update(cgx_id, lmac_id, req->mac_addr, req->index); +} + +int rvu_cgx_prio_flow_ctrl_cfg(struct rvu *rvu, u16 pcifunc, u8 tx_pause, + u8 rx_pause, u16 pfc_en) +{ + int pf = rvu_get_pf(pcifunc); + u8 rx_8023 = 0, tx_8023 = 0; + struct mac_ops *mac_ops; + u8 cgx_id, lmac_id; + void *cgxd; + + /* This msg is expected only from PF/VFs that are mapped to CGX LMACs, + * if received from other PF/VF simply ACK, nothing to do. + */ + if (!is_pf_cgxmapped(rvu, pf)) + return -ENODEV; + + rvu_get_cgx_lmac_id(rvu->pf2cgxlmac_map[pf], &cgx_id, &lmac_id); + cgxd = rvu_cgx_pdata(cgx_id, rvu); + mac_ops = get_mac_ops(cgxd); + + mac_ops->mac_get_pause_frm_status(cgxd, lmac_id, &tx_8023, &rx_8023); + if (tx_8023 || rx_8023) { + dev_warn(rvu->dev, + "Can not configure PFC as 802.3X pause frames are enabled"); + return LMAC_AF_ERR_PFC_ENADIS_PERM_DENIED; + } + + mutex_lock(&rvu->rsrc_lock); + if (verify_lmac_fc_cfg(cgxd, lmac_id, tx_pause, rx_pause, + pcifunc & RVU_PFVF_FUNC_MASK)) { + mutex_unlock(&rvu->rsrc_lock); + return LMAC_AF_ERR_PERM_DENIED; + } + mutex_unlock(&rvu->rsrc_lock); + + return mac_ops->pfc_config(cgxd, lmac_id, tx_pause, rx_pause, pfc_en); +} + +int rvu_mbox_handler_cgx_prio_flow_ctrl_cfg(struct rvu *rvu, + struct cgx_pfc_cfg *req, + struct cgx_pfc_rsp *rsp) +{ + int pf = rvu_get_pf(req->hdr.pcifunc); + struct mac_ops *mac_ops; + u8 cgx_id, lmac_id; + void *cgxd; + int err; + + /* This msg is expected only from PF/VFs that are mapped to CGX LMACs, + * if received from other PF/VF simply ACK, nothing to do. + */ + if (!is_pf_cgxmapped(rvu, pf)) + return -ENODEV; + + rvu_get_cgx_lmac_id(rvu->pf2cgxlmac_map[pf], &cgx_id, &lmac_id); + cgxd = rvu_cgx_pdata(cgx_id, rvu); + mac_ops = get_mac_ops(cgxd); + + err = rvu_cgx_prio_flow_ctrl_cfg(rvu, req->hdr.pcifunc, req->tx_pause, + req->rx_pause, req->pfc_en); + + mac_ops->mac_get_pfc_frm_cfg(cgxd, lmac_id, &rsp->tx_pause, &rsp->rx_pause); + return err; +} diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rvu_cn10k.c b/drivers/net/ethernet/marvell/octeontx2/af/rvu_cn10k.c new file mode 100644 index 000000000..f9faa5b23 --- /dev/null +++ b/drivers/net/ethernet/marvell/octeontx2/af/rvu_cn10k.c @@ -0,0 +1,543 @@ +// SPDX-License-Identifier: GPL-2.0 +/* Marvell RPM CN10K driver + * + * Copyright (C) 2020 Marvell. + */ + +#include <linux/bitfield.h> +#include <linux/pci.h> +#include "rvu.h" +#include "cgx.h" +#include "rvu_reg.h" + +/* RVU LMTST */ +#define LMT_TBL_OP_READ 0 +#define LMT_TBL_OP_WRITE 1 +#define LMT_MAP_TABLE_SIZE (128 * 1024) +#define LMT_MAPTBL_ENTRY_SIZE 16 + +/* Function to perform operations (read/write) on lmtst map table */ +static int lmtst_map_table_ops(struct rvu *rvu, u32 index, u64 *val, + int lmt_tbl_op) +{ + void __iomem *lmt_map_base; + u64 tbl_base; + + tbl_base = rvu_read64(rvu, BLKADDR_APR, APR_AF_LMT_MAP_BASE); + + lmt_map_base = ioremap_wc(tbl_base, LMT_MAP_TABLE_SIZE); + if (!lmt_map_base) { + dev_err(rvu->dev, "Failed to setup lmt map table mapping!!\n"); + return -ENOMEM; + } + + if (lmt_tbl_op == LMT_TBL_OP_READ) { + *val = readq(lmt_map_base + index); + } else { + writeq((*val), (lmt_map_base + index)); + /* Flushing the AP interceptor cache to make APR_LMT_MAP_ENTRY_S + * changes effective. Write 1 for flush and read is being used as a + * barrier and sets up a data dependency. Write to 0 after a write + * to 1 to complete the flush. + */ + rvu_write64(rvu, BLKADDR_APR, APR_AF_LMT_CTL, BIT_ULL(0)); + rvu_read64(rvu, BLKADDR_APR, APR_AF_LMT_CTL); + rvu_write64(rvu, BLKADDR_APR, APR_AF_LMT_CTL, 0x00); + } + + iounmap(lmt_map_base); + return 0; +} + +#define LMT_MAP_TBL_W1_OFF 8 +static u32 rvu_get_lmtst_tbl_index(struct rvu *rvu, u16 pcifunc) +{ + return ((rvu_get_pf(pcifunc) * rvu->hw->total_vfs) + + (pcifunc & RVU_PFVF_FUNC_MASK)) * LMT_MAPTBL_ENTRY_SIZE; +} + +static int rvu_get_lmtaddr(struct rvu *rvu, u16 pcifunc, + u64 iova, u64 *lmt_addr) +{ + u64 pa, val, pf; + int err = 0; + + if (!iova) { + dev_err(rvu->dev, "%s Requested Null address for transulation\n", __func__); + return -EINVAL; + } + + mutex_lock(&rvu->rsrc_lock); + rvu_write64(rvu, BLKADDR_RVUM, RVU_AF_SMMU_ADDR_REQ, iova); + pf = rvu_get_pf(pcifunc) & 0x1F; + val = BIT_ULL(63) | BIT_ULL(14) | BIT_ULL(13) | pf << 8 | + ((pcifunc & RVU_PFVF_FUNC_MASK) & 0xFF); + rvu_write64(rvu, BLKADDR_RVUM, RVU_AF_SMMU_TXN_REQ, val); + + err = rvu_poll_reg(rvu, BLKADDR_RVUM, RVU_AF_SMMU_ADDR_RSP_STS, BIT_ULL(0), false); + if (err) { + dev_err(rvu->dev, "%s LMTLINE iova transulation failed\n", __func__); + goto exit; + } + val = rvu_read64(rvu, BLKADDR_RVUM, RVU_AF_SMMU_ADDR_RSP_STS); + if (val & ~0x1ULL) { + dev_err(rvu->dev, "%s LMTLINE iova transulation failed err:%llx\n", __func__, val); + err = -EIO; + goto exit; + } + /* PA[51:12] = RVU_AF_SMMU_TLN_FLIT0[57:18] + * PA[11:0] = IOVA[11:0] + */ + pa = rvu_read64(rvu, BLKADDR_RVUM, RVU_AF_SMMU_TLN_FLIT0) >> 18; + pa &= GENMASK_ULL(39, 0); + *lmt_addr = (pa << 12) | (iova & 0xFFF); +exit: + mutex_unlock(&rvu->rsrc_lock); + return err; +} + +static int rvu_update_lmtaddr(struct rvu *rvu, u16 pcifunc, u64 lmt_addr) +{ + struct rvu_pfvf *pfvf = rvu_get_pfvf(rvu, pcifunc); + u32 tbl_idx; + int err = 0; + u64 val; + + /* Read the current lmt addr of pcifunc */ + tbl_idx = rvu_get_lmtst_tbl_index(rvu, pcifunc); + err = lmtst_map_table_ops(rvu, tbl_idx, &val, LMT_TBL_OP_READ); + if (err) { + dev_err(rvu->dev, + "Failed to read LMT map table: index 0x%x err %d\n", + tbl_idx, err); + return err; + } + + /* Storing the seondary's lmt base address as this needs to be + * reverted in FLR. Also making sure this default value doesn't + * get overwritten on multiple calls to this mailbox. + */ + if (!pfvf->lmt_base_addr) + pfvf->lmt_base_addr = val; + + /* Update the LMT table with new addr */ + err = lmtst_map_table_ops(rvu, tbl_idx, &lmt_addr, LMT_TBL_OP_WRITE); + if (err) { + dev_err(rvu->dev, + "Failed to update LMT map table: index 0x%x err %d\n", + tbl_idx, err); + return err; + } + return 0; +} + +int rvu_mbox_handler_lmtst_tbl_setup(struct rvu *rvu, + struct lmtst_tbl_setup_req *req, + struct msg_rsp *rsp) +{ + struct rvu_pfvf *pfvf = rvu_get_pfvf(rvu, req->hdr.pcifunc); + u32 pri_tbl_idx, tbl_idx; + u64 lmt_addr; + int err = 0; + u64 val; + + /* Check if PF_FUNC wants to use it's own local memory as LMTLINE + * region, if so, convert that IOVA to physical address and + * populate LMT table with that address + */ + if (req->use_local_lmt_region) { + err = rvu_get_lmtaddr(rvu, req->hdr.pcifunc, + req->lmt_iova, &lmt_addr); + if (err < 0) + return err; + + /* Update the lmt addr for this PFFUNC in the LMT table */ + err = rvu_update_lmtaddr(rvu, req->hdr.pcifunc, lmt_addr); + if (err) + return err; + } + + /* Reconfiguring lmtst map table in lmt region shared mode i.e. make + * multiple PF_FUNCs to share an LMTLINE region, so primary/base + * pcifunc (which is passed as an argument to mailbox) is the one + * whose lmt base address will be shared among other secondary + * pcifunc (will be the one who is calling this mailbox). + */ + if (req->base_pcifunc) { + /* Calculating the LMT table index equivalent to primary + * pcifunc. + */ + pri_tbl_idx = rvu_get_lmtst_tbl_index(rvu, req->base_pcifunc); + + /* Read the base lmt addr of the primary pcifunc */ + err = lmtst_map_table_ops(rvu, pri_tbl_idx, &val, + LMT_TBL_OP_READ); + if (err) { + dev_err(rvu->dev, + "Failed to read LMT map table: index 0x%x err %d\n", + pri_tbl_idx, err); + goto error; + } + + /* Update the base lmt addr of secondary with primary's base + * lmt addr. + */ + err = rvu_update_lmtaddr(rvu, req->hdr.pcifunc, val); + if (err) + return err; + } + + /* This mailbox can also be used to update word1 of APR_LMT_MAP_ENTRY_S + * like enabling scheduled LMTST, disable LMTLINE prefetch, disable + * early completion for ordered LMTST. + */ + if (req->sch_ena || req->dis_sched_early_comp || req->dis_line_pref) { + tbl_idx = rvu_get_lmtst_tbl_index(rvu, req->hdr.pcifunc); + err = lmtst_map_table_ops(rvu, tbl_idx + LMT_MAP_TBL_W1_OFF, + &val, LMT_TBL_OP_READ); + if (err) { + dev_err(rvu->dev, + "Failed to read LMT map table: index 0x%x err %d\n", + tbl_idx + LMT_MAP_TBL_W1_OFF, err); + goto error; + } + + /* Storing lmt map table entry word1 default value as this needs + * to be reverted in FLR. Also making sure this default value + * doesn't get overwritten on multiple calls to this mailbox. + */ + if (!pfvf->lmt_map_ent_w1) + pfvf->lmt_map_ent_w1 = val; + + /* Disable early completion for Ordered LMTSTs. */ + if (req->dis_sched_early_comp) + val |= (req->dis_sched_early_comp << + APR_LMT_MAP_ENT_DIS_SCH_CMP_SHIFT); + /* Enable scheduled LMTST */ + if (req->sch_ena) + val |= (req->sch_ena << APR_LMT_MAP_ENT_SCH_ENA_SHIFT) | + req->ssow_pf_func; + /* Disables LMTLINE prefetch before receiving store data. */ + if (req->dis_line_pref) + val |= (req->dis_line_pref << + APR_LMT_MAP_ENT_DIS_LINE_PREF_SHIFT); + + err = lmtst_map_table_ops(rvu, tbl_idx + LMT_MAP_TBL_W1_OFF, + &val, LMT_TBL_OP_WRITE); + if (err) { + dev_err(rvu->dev, + "Failed to update LMT map table: index 0x%x err %d\n", + tbl_idx + LMT_MAP_TBL_W1_OFF, err); + goto error; + } + } + +error: + return err; +} + +/* Resetting the lmtst map table to original base addresses */ +void rvu_reset_lmt_map_tbl(struct rvu *rvu, u16 pcifunc) +{ + struct rvu_pfvf *pfvf = rvu_get_pfvf(rvu, pcifunc); + u32 tbl_idx; + int err; + + if (is_rvu_otx2(rvu)) + return; + + if (pfvf->lmt_base_addr || pfvf->lmt_map_ent_w1) { + /* This corresponds to lmt map table index */ + tbl_idx = rvu_get_lmtst_tbl_index(rvu, pcifunc); + /* Reverting back original lmt base addr for respective + * pcifunc. + */ + if (pfvf->lmt_base_addr) { + err = lmtst_map_table_ops(rvu, tbl_idx, + &pfvf->lmt_base_addr, + LMT_TBL_OP_WRITE); + if (err) + dev_err(rvu->dev, + "Failed to update LMT map table: index 0x%x err %d\n", + tbl_idx, err); + pfvf->lmt_base_addr = 0; + } + /* Reverting back to orginal word1 val of lmtst map table entry + * which underwent changes. + */ + if (pfvf->lmt_map_ent_w1) { + err = lmtst_map_table_ops(rvu, + tbl_idx + LMT_MAP_TBL_W1_OFF, + &pfvf->lmt_map_ent_w1, + LMT_TBL_OP_WRITE); + if (err) + dev_err(rvu->dev, + "Failed to update LMT map table: index 0x%x err %d\n", + tbl_idx + LMT_MAP_TBL_W1_OFF, err); + pfvf->lmt_map_ent_w1 = 0; + } + } +} + +int rvu_set_channels_base(struct rvu *rvu) +{ + u16 nr_lbk_chans, nr_sdp_chans, nr_cgx_chans, nr_cpt_chans; + u16 sdp_chan_base, cgx_chan_base, cpt_chan_base; + struct rvu_hwinfo *hw = rvu->hw; + u64 nix_const, nix_const1; + int blkaddr; + + blkaddr = rvu_get_blkaddr(rvu, BLKTYPE_NIX, 0); + if (blkaddr < 0) + return blkaddr; + + nix_const = rvu_read64(rvu, blkaddr, NIX_AF_CONST); + nix_const1 = rvu_read64(rvu, blkaddr, NIX_AF_CONST1); + + hw->cgx = (nix_const >> 12) & 0xFULL; + hw->lmac_per_cgx = (nix_const >> 8) & 0xFULL; + hw->cgx_links = hw->cgx * hw->lmac_per_cgx; + hw->lbk_links = (nix_const >> 24) & 0xFULL; + hw->cpt_links = (nix_const >> 44) & 0xFULL; + hw->sdp_links = 1; + + hw->cgx_chan_base = NIX_CHAN_CGX_LMAC_CHX(0, 0, 0); + hw->lbk_chan_base = NIX_CHAN_LBK_CHX(0, 0); + hw->sdp_chan_base = NIX_CHAN_SDP_CH_START; + + /* No Programmable channels */ + if (!(nix_const & BIT_ULL(60))) + return 0; + + hw->cap.programmable_chans = true; + + /* If programmable channels are present then configure + * channels such that all channel numbers are contiguous + * leaving no holes. This way the new CPT channels can be + * accomodated. The order of channel numbers assigned is + * LBK, SDP, CGX and CPT. Also the base channel number + * of a block must be multiple of number of channels + * of the block. + */ + nr_lbk_chans = (nix_const >> 16) & 0xFFULL; + nr_sdp_chans = nix_const1 & 0xFFFULL; + nr_cgx_chans = nix_const & 0xFFULL; + nr_cpt_chans = (nix_const >> 32) & 0xFFFULL; + + sdp_chan_base = hw->lbk_chan_base + hw->lbk_links * nr_lbk_chans; + /* Round up base channel to multiple of number of channels */ + hw->sdp_chan_base = ALIGN(sdp_chan_base, nr_sdp_chans); + + cgx_chan_base = hw->sdp_chan_base + hw->sdp_links * nr_sdp_chans; + hw->cgx_chan_base = ALIGN(cgx_chan_base, nr_cgx_chans); + + cpt_chan_base = hw->cgx_chan_base + hw->cgx_links * nr_cgx_chans; + hw->cpt_chan_base = ALIGN(cpt_chan_base, nr_cpt_chans); + + /* Out of 4096 channels start CPT from 2048 so + * that MSB for CPT channels is always set + */ + if (cpt_chan_base <= NIX_CHAN_CPT_CH_START) { + hw->cpt_chan_base = NIX_CHAN_CPT_CH_START; + } else { + dev_err(rvu->dev, + "CPT channels could not fit in the range 2048-4095\n"); + return -EINVAL; + } + + return 0; +} + +#define LBK_CONNECT_NIXX(a) (0x0 + (a)) + +static void __rvu_lbk_set_chans(struct rvu *rvu, void __iomem *base, + u64 offset, int lbkid, u16 chans) +{ + struct rvu_hwinfo *hw = rvu->hw; + u64 cfg; + + cfg = readq(base + offset); + cfg &= ~(LBK_LINK_CFG_RANGE_MASK | + LBK_LINK_CFG_ID_MASK | LBK_LINK_CFG_BASE_MASK); + cfg |= FIELD_PREP(LBK_LINK_CFG_RANGE_MASK, ilog2(chans)); + cfg |= FIELD_PREP(LBK_LINK_CFG_ID_MASK, lbkid); + cfg |= FIELD_PREP(LBK_LINK_CFG_BASE_MASK, hw->lbk_chan_base); + + writeq(cfg, base + offset); +} + +static void rvu_lbk_set_channels(struct rvu *rvu) +{ + struct pci_dev *pdev = NULL; + void __iomem *base; + u64 lbk_const; + u8 src, dst; + u16 chans; + + /* To loopback packets between multiple NIX blocks + * mutliple LBK blocks are needed. With two NIX blocks, + * four LBK blocks are needed and each LBK block + * source and destination are as follows: + * LBK0 - source NIX0 and destination NIX1 + * LBK1 - source NIX0 and destination NIX1 + * LBK2 - source NIX1 and destination NIX0 + * LBK3 - source NIX1 and destination NIX1 + * As per the HRM channel numbers should be programmed as: + * P2X and X2P of LBK0 as same + * P2X and X2P of LBK3 as same + * P2X of LBK1 and X2P of LBK2 as same + * P2X of LBK2 and X2P of LBK1 as same + */ + while (true) { + pdev = pci_get_device(PCI_VENDOR_ID_CAVIUM, + PCI_DEVID_OCTEONTX2_LBK, pdev); + if (!pdev) + return; + + base = pci_ioremap_bar(pdev, 0); + if (!base) + goto err_put; + + lbk_const = readq(base + LBK_CONST); + chans = FIELD_GET(LBK_CONST_CHANS, lbk_const); + dst = FIELD_GET(LBK_CONST_DST, lbk_const); + src = FIELD_GET(LBK_CONST_SRC, lbk_const); + + if (src == dst) { + if (src == LBK_CONNECT_NIXX(0)) { /* LBK0 */ + __rvu_lbk_set_chans(rvu, base, LBK_LINK_CFG_X2P, + 0, chans); + __rvu_lbk_set_chans(rvu, base, LBK_LINK_CFG_P2X, + 0, chans); + } else if (src == LBK_CONNECT_NIXX(1)) { /* LBK3 */ + __rvu_lbk_set_chans(rvu, base, LBK_LINK_CFG_X2P, + 1, chans); + __rvu_lbk_set_chans(rvu, base, LBK_LINK_CFG_P2X, + 1, chans); + } + } else { + if (src == LBK_CONNECT_NIXX(0)) { /* LBK1 */ + __rvu_lbk_set_chans(rvu, base, LBK_LINK_CFG_X2P, + 0, chans); + __rvu_lbk_set_chans(rvu, base, LBK_LINK_CFG_P2X, + 1, chans); + } else if (src == LBK_CONNECT_NIXX(1)) { /* LBK2 */ + __rvu_lbk_set_chans(rvu, base, LBK_LINK_CFG_X2P, + 1, chans); + __rvu_lbk_set_chans(rvu, base, LBK_LINK_CFG_P2X, + 0, chans); + } + } + iounmap(base); + } +err_put: + pci_dev_put(pdev); +} + +static void __rvu_nix_set_channels(struct rvu *rvu, int blkaddr) +{ + u64 nix_const1 = rvu_read64(rvu, blkaddr, NIX_AF_CONST1); + u64 nix_const = rvu_read64(rvu, blkaddr, NIX_AF_CONST); + u16 cgx_chans, lbk_chans, sdp_chans, cpt_chans; + struct rvu_hwinfo *hw = rvu->hw; + int link, nix_link = 0; + u16 start; + u64 cfg; + + cgx_chans = nix_const & 0xFFULL; + lbk_chans = (nix_const >> 16) & 0xFFULL; + sdp_chans = nix_const1 & 0xFFFULL; + cpt_chans = (nix_const >> 32) & 0xFFFULL; + + start = hw->cgx_chan_base; + for (link = 0; link < hw->cgx_links; link++, nix_link++) { + cfg = rvu_read64(rvu, blkaddr, NIX_AF_LINKX_CFG(nix_link)); + cfg &= ~(NIX_AF_LINKX_BASE_MASK | NIX_AF_LINKX_RANGE_MASK); + cfg |= FIELD_PREP(NIX_AF_LINKX_RANGE_MASK, ilog2(cgx_chans)); + cfg |= FIELD_PREP(NIX_AF_LINKX_BASE_MASK, start); + rvu_write64(rvu, blkaddr, NIX_AF_LINKX_CFG(nix_link), cfg); + start += cgx_chans; + } + + start = hw->lbk_chan_base; + for (link = 0; link < hw->lbk_links; link++, nix_link++) { + cfg = rvu_read64(rvu, blkaddr, NIX_AF_LINKX_CFG(nix_link)); + cfg &= ~(NIX_AF_LINKX_BASE_MASK | NIX_AF_LINKX_RANGE_MASK); + cfg |= FIELD_PREP(NIX_AF_LINKX_RANGE_MASK, ilog2(lbk_chans)); + cfg |= FIELD_PREP(NIX_AF_LINKX_BASE_MASK, start); + rvu_write64(rvu, blkaddr, NIX_AF_LINKX_CFG(nix_link), cfg); + start += lbk_chans; + } + + start = hw->sdp_chan_base; + for (link = 0; link < hw->sdp_links; link++, nix_link++) { + cfg = rvu_read64(rvu, blkaddr, NIX_AF_LINKX_CFG(nix_link)); + cfg &= ~(NIX_AF_LINKX_BASE_MASK | NIX_AF_LINKX_RANGE_MASK); + cfg |= FIELD_PREP(NIX_AF_LINKX_RANGE_MASK, ilog2(sdp_chans)); + cfg |= FIELD_PREP(NIX_AF_LINKX_BASE_MASK, start); + rvu_write64(rvu, blkaddr, NIX_AF_LINKX_CFG(nix_link), cfg); + start += sdp_chans; + } + + start = hw->cpt_chan_base; + for (link = 0; link < hw->cpt_links; link++, nix_link++) { + cfg = rvu_read64(rvu, blkaddr, NIX_AF_LINKX_CFG(nix_link)); + cfg &= ~(NIX_AF_LINKX_BASE_MASK | NIX_AF_LINKX_RANGE_MASK); + cfg |= FIELD_PREP(NIX_AF_LINKX_RANGE_MASK, ilog2(cpt_chans)); + cfg |= FIELD_PREP(NIX_AF_LINKX_BASE_MASK, start); + rvu_write64(rvu, blkaddr, NIX_AF_LINKX_CFG(nix_link), cfg); + start += cpt_chans; + } +} + +static void rvu_nix_set_channels(struct rvu *rvu) +{ + int blkaddr = 0; + + blkaddr = rvu_get_next_nix_blkaddr(rvu, blkaddr); + while (blkaddr) { + __rvu_nix_set_channels(rvu, blkaddr); + blkaddr = rvu_get_next_nix_blkaddr(rvu, blkaddr); + } +} + +static void __rvu_rpm_set_channels(int cgxid, int lmacid, u16 base) +{ + u64 cfg; + + cfg = cgx_lmac_read(cgxid, lmacid, RPMX_CMRX_LINK_CFG); + cfg &= ~(RPMX_CMRX_LINK_BASE_MASK | RPMX_CMRX_LINK_RANGE_MASK); + + /* There is no read-only constant register to read + * the number of channels for LMAC and it is always 16. + */ + cfg |= FIELD_PREP(RPMX_CMRX_LINK_RANGE_MASK, ilog2(16)); + cfg |= FIELD_PREP(RPMX_CMRX_LINK_BASE_MASK, base); + cgx_lmac_write(cgxid, lmacid, RPMX_CMRX_LINK_CFG, cfg); +} + +static void rvu_rpm_set_channels(struct rvu *rvu) +{ + struct rvu_hwinfo *hw = rvu->hw; + u16 base = hw->cgx_chan_base; + int cgx, lmac; + + for (cgx = 0; cgx < rvu->cgx_cnt_max; cgx++) { + for (lmac = 0; lmac < hw->lmac_per_cgx; lmac++) { + __rvu_rpm_set_channels(cgx, lmac, base); + base += 16; + } + } +} + +void rvu_program_channels(struct rvu *rvu) +{ + struct rvu_hwinfo *hw = rvu->hw; + + if (!hw->cap.programmable_chans) + return; + + rvu_nix_set_channels(rvu); + rvu_lbk_set_channels(rvu); + rvu_rpm_set_channels(rvu); +} diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rvu_cpt.c b/drivers/net/ethernet/marvell/octeontx2/af/rvu_cpt.c new file mode 100644 index 000000000..38bbae5d9 --- /dev/null +++ b/drivers/net/ethernet/marvell/octeontx2/af/rvu_cpt.c @@ -0,0 +1,1086 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* Marvell RVU Admin Function driver + * + * Copyright (C) 2020 Marvell. + * + */ + +#include <linux/bitfield.h> +#include <linux/pci.h> +#include "rvu_struct.h" +#include "rvu_reg.h" +#include "mbox.h" +#include "rvu.h" + +/* CPT PF device id */ +#define PCI_DEVID_OTX2_CPT_PF 0xA0FD +#define PCI_DEVID_OTX2_CPT10K_PF 0xA0F2 + +/* Length of initial context fetch in 128 byte words */ +#define CPT_CTX_ILEN 2ULL + +#define cpt_get_eng_sts(e_min, e_max, rsp, etype) \ +({ \ + u64 free_sts = 0, busy_sts = 0; \ + typeof(rsp) _rsp = rsp; \ + u32 e, i; \ + \ + for (e = (e_min), i = 0; e < (e_max); e++, i++) { \ + reg = rvu_read64(rvu, blkaddr, CPT_AF_EXEX_STS(e)); \ + if (reg & 0x1) \ + busy_sts |= 1ULL << i; \ + \ + if (reg & 0x2) \ + free_sts |= 1ULL << i; \ + } \ + (_rsp)->busy_sts_##etype = busy_sts; \ + (_rsp)->free_sts_##etype = free_sts; \ +}) + +static irqreturn_t rvu_cpt_af_flt_intr_handler(int irq, void *ptr) +{ + struct rvu_block *block = ptr; + struct rvu *rvu = block->rvu; + int blkaddr = block->addr; + u64 reg0, reg1, reg2; + + reg0 = rvu_read64(rvu, blkaddr, CPT_AF_FLTX_INT(0)); + reg1 = rvu_read64(rvu, blkaddr, CPT_AF_FLTX_INT(1)); + if (!is_rvu_otx2(rvu)) { + reg2 = rvu_read64(rvu, blkaddr, CPT_AF_FLTX_INT(2)); + dev_err_ratelimited(rvu->dev, + "Received CPTAF FLT irq : 0x%llx, 0x%llx, 0x%llx", + reg0, reg1, reg2); + } else { + dev_err_ratelimited(rvu->dev, + "Received CPTAF FLT irq : 0x%llx, 0x%llx", + reg0, reg1); + } + + rvu_write64(rvu, blkaddr, CPT_AF_FLTX_INT(0), reg0); + rvu_write64(rvu, blkaddr, CPT_AF_FLTX_INT(1), reg1); + if (!is_rvu_otx2(rvu)) + rvu_write64(rvu, blkaddr, CPT_AF_FLTX_INT(2), reg2); + + return IRQ_HANDLED; +} + +static irqreturn_t rvu_cpt_af_rvu_intr_handler(int irq, void *ptr) +{ + struct rvu_block *block = ptr; + struct rvu *rvu = block->rvu; + int blkaddr = block->addr; + u64 reg; + + reg = rvu_read64(rvu, blkaddr, CPT_AF_RVU_INT); + dev_err_ratelimited(rvu->dev, "Received CPTAF RVU irq : 0x%llx", reg); + + rvu_write64(rvu, blkaddr, CPT_AF_RVU_INT, reg); + return IRQ_HANDLED; +} + +static irqreturn_t rvu_cpt_af_ras_intr_handler(int irq, void *ptr) +{ + struct rvu_block *block = ptr; + struct rvu *rvu = block->rvu; + int blkaddr = block->addr; + u64 reg; + + reg = rvu_read64(rvu, blkaddr, CPT_AF_RAS_INT); + dev_err_ratelimited(rvu->dev, "Received CPTAF RAS irq : 0x%llx", reg); + + rvu_write64(rvu, blkaddr, CPT_AF_RAS_INT, reg); + return IRQ_HANDLED; +} + +static int rvu_cpt_do_register_interrupt(struct rvu_block *block, int irq_offs, + irq_handler_t handler, + const char *name) +{ + struct rvu *rvu = block->rvu; + int ret; + + ret = request_irq(pci_irq_vector(rvu->pdev, irq_offs), handler, 0, + name, block); + if (ret) { + dev_err(rvu->dev, "RVUAF: %s irq registration failed", name); + return ret; + } + + WARN_ON(rvu->irq_allocated[irq_offs]); + rvu->irq_allocated[irq_offs] = true; + return 0; +} + +static void cpt_10k_unregister_interrupts(struct rvu_block *block, int off) +{ + struct rvu *rvu = block->rvu; + int blkaddr = block->addr; + int i; + + /* Disable all CPT AF interrupts */ + for (i = 0; i < CPT_10K_AF_INT_VEC_RVU; i++) + rvu_write64(rvu, blkaddr, CPT_AF_FLTX_INT_ENA_W1C(i), 0x1); + rvu_write64(rvu, blkaddr, CPT_AF_RVU_INT_ENA_W1C, 0x1); + rvu_write64(rvu, blkaddr, CPT_AF_RAS_INT_ENA_W1C, 0x1); + + for (i = 0; i < CPT_10K_AF_INT_VEC_CNT; i++) + if (rvu->irq_allocated[off + i]) { + free_irq(pci_irq_vector(rvu->pdev, off + i), block); + rvu->irq_allocated[off + i] = false; + } +} + +static void cpt_unregister_interrupts(struct rvu *rvu, int blkaddr) +{ + struct rvu_hwinfo *hw = rvu->hw; + struct rvu_block *block; + int i, offs; + + if (!is_block_implemented(rvu->hw, blkaddr)) + return; + offs = rvu_read64(rvu, blkaddr, CPT_PRIV_AF_INT_CFG) & 0x7FF; + if (!offs) { + dev_warn(rvu->dev, + "Failed to get CPT_AF_INT vector offsets\n"); + return; + } + block = &hw->block[blkaddr]; + if (!is_rvu_otx2(rvu)) + return cpt_10k_unregister_interrupts(block, offs); + + /* Disable all CPT AF interrupts */ + for (i = 0; i < CPT_AF_INT_VEC_RVU; i++) + rvu_write64(rvu, blkaddr, CPT_AF_FLTX_INT_ENA_W1C(i), 0x1); + rvu_write64(rvu, blkaddr, CPT_AF_RVU_INT_ENA_W1C, 0x1); + rvu_write64(rvu, blkaddr, CPT_AF_RAS_INT_ENA_W1C, 0x1); + + for (i = 0; i < CPT_AF_INT_VEC_CNT; i++) + if (rvu->irq_allocated[offs + i]) { + free_irq(pci_irq_vector(rvu->pdev, offs + i), block); + rvu->irq_allocated[offs + i] = false; + } +} + +void rvu_cpt_unregister_interrupts(struct rvu *rvu) +{ + cpt_unregister_interrupts(rvu, BLKADDR_CPT0); + cpt_unregister_interrupts(rvu, BLKADDR_CPT1); +} + +static int cpt_10k_register_interrupts(struct rvu_block *block, int off) +{ + struct rvu *rvu = block->rvu; + int blkaddr = block->addr; + int i, ret; + + for (i = CPT_10K_AF_INT_VEC_FLT0; i < CPT_10K_AF_INT_VEC_RVU; i++) { + sprintf(&rvu->irq_name[(off + i) * NAME_SIZE], "CPTAF FLT%d", i); + ret = rvu_cpt_do_register_interrupt(block, off + i, + rvu_cpt_af_flt_intr_handler, + &rvu->irq_name[(off + i) * NAME_SIZE]); + if (ret) + goto err; + rvu_write64(rvu, blkaddr, CPT_AF_FLTX_INT_ENA_W1S(i), 0x1); + } + + ret = rvu_cpt_do_register_interrupt(block, off + CPT_10K_AF_INT_VEC_RVU, + rvu_cpt_af_rvu_intr_handler, + "CPTAF RVU"); + if (ret) + goto err; + rvu_write64(rvu, blkaddr, CPT_AF_RVU_INT_ENA_W1S, 0x1); + + ret = rvu_cpt_do_register_interrupt(block, off + CPT_10K_AF_INT_VEC_RAS, + rvu_cpt_af_ras_intr_handler, + "CPTAF RAS"); + if (ret) + goto err; + rvu_write64(rvu, blkaddr, CPT_AF_RAS_INT_ENA_W1S, 0x1); + + return 0; +err: + rvu_cpt_unregister_interrupts(rvu); + return ret; +} + +static int cpt_register_interrupts(struct rvu *rvu, int blkaddr) +{ + struct rvu_hwinfo *hw = rvu->hw; + struct rvu_block *block; + int i, offs, ret = 0; + char irq_name[16]; + + if (!is_block_implemented(rvu->hw, blkaddr)) + return 0; + + block = &hw->block[blkaddr]; + offs = rvu_read64(rvu, blkaddr, CPT_PRIV_AF_INT_CFG) & 0x7FF; + if (!offs) { + dev_warn(rvu->dev, + "Failed to get CPT_AF_INT vector offsets\n"); + return 0; + } + + if (!is_rvu_otx2(rvu)) + return cpt_10k_register_interrupts(block, offs); + + for (i = CPT_AF_INT_VEC_FLT0; i < CPT_AF_INT_VEC_RVU; i++) { + snprintf(irq_name, sizeof(irq_name), "CPTAF FLT%d", i); + ret = rvu_cpt_do_register_interrupt(block, offs + i, + rvu_cpt_af_flt_intr_handler, + irq_name); + if (ret) + goto err; + rvu_write64(rvu, blkaddr, CPT_AF_FLTX_INT_ENA_W1S(i), 0x1); + } + + ret = rvu_cpt_do_register_interrupt(block, offs + CPT_AF_INT_VEC_RVU, + rvu_cpt_af_rvu_intr_handler, + "CPTAF RVU"); + if (ret) + goto err; + rvu_write64(rvu, blkaddr, CPT_AF_RVU_INT_ENA_W1S, 0x1); + + ret = rvu_cpt_do_register_interrupt(block, offs + CPT_AF_INT_VEC_RAS, + rvu_cpt_af_ras_intr_handler, + "CPTAF RAS"); + if (ret) + goto err; + rvu_write64(rvu, blkaddr, CPT_AF_RAS_INT_ENA_W1S, 0x1); + + return 0; +err: + rvu_cpt_unregister_interrupts(rvu); + return ret; +} + +int rvu_cpt_register_interrupts(struct rvu *rvu) +{ + int ret; + + ret = cpt_register_interrupts(rvu, BLKADDR_CPT0); + if (ret) + return ret; + + return cpt_register_interrupts(rvu, BLKADDR_CPT1); +} + +static int get_cpt_pf_num(struct rvu *rvu) +{ + int i, domain_nr, cpt_pf_num = -1; + struct pci_dev *pdev; + + domain_nr = pci_domain_nr(rvu->pdev->bus); + for (i = 0; i < rvu->hw->total_pfs; i++) { + pdev = pci_get_domain_bus_and_slot(domain_nr, i + 1, 0); + if (!pdev) + continue; + + if (pdev->device == PCI_DEVID_OTX2_CPT_PF || + pdev->device == PCI_DEVID_OTX2_CPT10K_PF) { + cpt_pf_num = i; + put_device(&pdev->dev); + break; + } + put_device(&pdev->dev); + } + return cpt_pf_num; +} + +static bool is_cpt_pf(struct rvu *rvu, u16 pcifunc) +{ + int cpt_pf_num = get_cpt_pf_num(rvu); + + if (rvu_get_pf(pcifunc) != cpt_pf_num) + return false; + if (pcifunc & RVU_PFVF_FUNC_MASK) + return false; + + return true; +} + +static bool is_cpt_vf(struct rvu *rvu, u16 pcifunc) +{ + int cpt_pf_num = get_cpt_pf_num(rvu); + + if (rvu_get_pf(pcifunc) != cpt_pf_num) + return false; + if (!(pcifunc & RVU_PFVF_FUNC_MASK)) + return false; + + return true; +} + +static int validate_and_get_cpt_blkaddr(int req_blkaddr) +{ + int blkaddr; + + blkaddr = req_blkaddr ? req_blkaddr : BLKADDR_CPT0; + if (blkaddr != BLKADDR_CPT0 && blkaddr != BLKADDR_CPT1) + return -EINVAL; + + return blkaddr; +} + +int rvu_mbox_handler_cpt_lf_alloc(struct rvu *rvu, + struct cpt_lf_alloc_req_msg *req, + struct msg_rsp *rsp) +{ + u16 pcifunc = req->hdr.pcifunc; + struct rvu_block *block; + int cptlf, blkaddr; + int num_lfs, slot; + u64 val; + + blkaddr = validate_and_get_cpt_blkaddr(req->blkaddr); + if (blkaddr < 0) + return blkaddr; + + if (req->eng_grpmsk == 0x0) + return CPT_AF_ERR_GRP_INVALID; + + block = &rvu->hw->block[blkaddr]; + num_lfs = rvu_get_rsrc_mapcount(rvu_get_pfvf(rvu, pcifunc), + block->addr); + if (!num_lfs) + return CPT_AF_ERR_LF_INVALID; + + /* Check if requested 'CPTLF <=> NIXLF' mapping is valid */ + if (req->nix_pf_func) { + /* If default, use 'this' CPTLF's PFFUNC */ + if (req->nix_pf_func == RVU_DEFAULT_PF_FUNC) + req->nix_pf_func = pcifunc; + if (!is_pffunc_map_valid(rvu, req->nix_pf_func, BLKTYPE_NIX)) + return CPT_AF_ERR_NIX_PF_FUNC_INVALID; + } + + /* Check if requested 'CPTLF <=> SSOLF' mapping is valid */ + if (req->sso_pf_func) { + /* If default, use 'this' CPTLF's PFFUNC */ + if (req->sso_pf_func == RVU_DEFAULT_PF_FUNC) + req->sso_pf_func = pcifunc; + if (!is_pffunc_map_valid(rvu, req->sso_pf_func, BLKTYPE_SSO)) + return CPT_AF_ERR_SSO_PF_FUNC_INVALID; + } + + for (slot = 0; slot < num_lfs; slot++) { + cptlf = rvu_get_lf(rvu, block, pcifunc, slot); + if (cptlf < 0) + return CPT_AF_ERR_LF_INVALID; + + /* Set CPT LF group and priority */ + val = (u64)req->eng_grpmsk << 48 | 1; + if (!is_rvu_otx2(rvu)) + val |= (CPT_CTX_ILEN << 17); + + rvu_write64(rvu, blkaddr, CPT_AF_LFX_CTL(cptlf), val); + + /* Set CPT LF NIX_PF_FUNC and SSO_PF_FUNC. EXE_LDWB is set + * on reset. + */ + val = rvu_read64(rvu, blkaddr, CPT_AF_LFX_CTL2(cptlf)); + val &= ~(GENMASK_ULL(63, 48) | GENMASK_ULL(47, 32)); + val |= ((u64)req->nix_pf_func << 48 | + (u64)req->sso_pf_func << 32); + rvu_write64(rvu, blkaddr, CPT_AF_LFX_CTL2(cptlf), val); + } + + return 0; +} + +static int cpt_lf_free(struct rvu *rvu, struct msg_req *req, int blkaddr) +{ + u16 pcifunc = req->hdr.pcifunc; + int num_lfs, cptlf, slot, err; + struct rvu_block *block; + + block = &rvu->hw->block[blkaddr]; + num_lfs = rvu_get_rsrc_mapcount(rvu_get_pfvf(rvu, pcifunc), + block->addr); + if (!num_lfs) + return 0; + + for (slot = 0; slot < num_lfs; slot++) { + cptlf = rvu_get_lf(rvu, block, pcifunc, slot); + if (cptlf < 0) + return CPT_AF_ERR_LF_INVALID; + + /* Perform teardown */ + rvu_cpt_lf_teardown(rvu, pcifunc, blkaddr, cptlf, slot); + + /* Reset LF */ + err = rvu_lf_reset(rvu, block, cptlf); + if (err) { + dev_err(rvu->dev, "Failed to reset blkaddr %d LF%d\n", + block->addr, cptlf); + } + } + + return 0; +} + +int rvu_mbox_handler_cpt_lf_free(struct rvu *rvu, struct msg_req *req, + struct msg_rsp *rsp) +{ + int ret; + + ret = cpt_lf_free(rvu, req, BLKADDR_CPT0); + if (ret) + return ret; + + if (is_block_implemented(rvu->hw, BLKADDR_CPT1)) + ret = cpt_lf_free(rvu, req, BLKADDR_CPT1); + + return ret; +} + +static int cpt_inline_ipsec_cfg_inbound(struct rvu *rvu, int blkaddr, u8 cptlf, + struct cpt_inline_ipsec_cfg_msg *req) +{ + u16 sso_pf_func = req->sso_pf_func; + u8 nix_sel; + u64 val; + + val = rvu_read64(rvu, blkaddr, CPT_AF_LFX_CTL(cptlf)); + if (req->enable && (val & BIT_ULL(16))) { + /* IPSec inline outbound path is already enabled for a given + * CPT LF, HRM states that inline inbound & outbound paths + * must not be enabled at the same time for a given CPT LF + */ + return CPT_AF_ERR_INLINE_IPSEC_INB_ENA; + } + /* Check if requested 'CPTLF <=> SSOLF' mapping is valid */ + if (sso_pf_func && !is_pffunc_map_valid(rvu, sso_pf_func, BLKTYPE_SSO)) + return CPT_AF_ERR_SSO_PF_FUNC_INVALID; + + nix_sel = (blkaddr == BLKADDR_CPT1) ? 1 : 0; + /* Enable CPT LF for IPsec inline inbound operations */ + if (req->enable) + val |= BIT_ULL(9); + else + val &= ~BIT_ULL(9); + + val |= (u64)nix_sel << 8; + rvu_write64(rvu, blkaddr, CPT_AF_LFX_CTL(cptlf), val); + + if (sso_pf_func) { + /* Set SSO_PF_FUNC */ + val = rvu_read64(rvu, blkaddr, CPT_AF_LFX_CTL2(cptlf)); + val |= (u64)sso_pf_func << 32; + val |= (u64)req->nix_pf_func << 48; + rvu_write64(rvu, blkaddr, CPT_AF_LFX_CTL2(cptlf), val); + } + if (req->sso_pf_func_ovrd) + /* Set SSO_PF_FUNC_OVRD for inline IPSec */ + rvu_write64(rvu, blkaddr, CPT_AF_ECO, 0x1); + + /* Configure the X2P Link register with the cpt base channel number and + * range of channels it should propagate to X2P + */ + if (!is_rvu_otx2(rvu)) { + val = (ilog2(NIX_CHAN_CPT_X2P_MASK + 1) << 16); + val |= (u64)rvu->hw->cpt_chan_base; + + rvu_write64(rvu, blkaddr, CPT_AF_X2PX_LINK_CFG(0), val); + rvu_write64(rvu, blkaddr, CPT_AF_X2PX_LINK_CFG(1), val); + } + + return 0; +} + +static int cpt_inline_ipsec_cfg_outbound(struct rvu *rvu, int blkaddr, u8 cptlf, + struct cpt_inline_ipsec_cfg_msg *req) +{ + u16 nix_pf_func = req->nix_pf_func; + int nix_blkaddr; + u8 nix_sel; + u64 val; + + val = rvu_read64(rvu, blkaddr, CPT_AF_LFX_CTL(cptlf)); + if (req->enable && (val & BIT_ULL(9))) { + /* IPSec inline inbound path is already enabled for a given + * CPT LF, HRM states that inline inbound & outbound paths + * must not be enabled at the same time for a given CPT LF + */ + return CPT_AF_ERR_INLINE_IPSEC_OUT_ENA; + } + + /* Check if requested 'CPTLF <=> NIXLF' mapping is valid */ + if (nix_pf_func && !is_pffunc_map_valid(rvu, nix_pf_func, BLKTYPE_NIX)) + return CPT_AF_ERR_NIX_PF_FUNC_INVALID; + + /* Enable CPT LF for IPsec inline outbound operations */ + if (req->enable) + val |= BIT_ULL(16); + else + val &= ~BIT_ULL(16); + rvu_write64(rvu, blkaddr, CPT_AF_LFX_CTL(cptlf), val); + + if (nix_pf_func) { + /* Set NIX_PF_FUNC */ + val = rvu_read64(rvu, blkaddr, CPT_AF_LFX_CTL2(cptlf)); + val |= (u64)nix_pf_func << 48; + rvu_write64(rvu, blkaddr, CPT_AF_LFX_CTL2(cptlf), val); + + nix_blkaddr = rvu_get_blkaddr(rvu, BLKTYPE_NIX, nix_pf_func); + nix_sel = (nix_blkaddr == BLKADDR_NIX0) ? 0 : 1; + + val = rvu_read64(rvu, blkaddr, CPT_AF_LFX_CTL(cptlf)); + val |= (u64)nix_sel << 8; + rvu_write64(rvu, blkaddr, CPT_AF_LFX_CTL(cptlf), val); + } + + return 0; +} + +int rvu_mbox_handler_cpt_inline_ipsec_cfg(struct rvu *rvu, + struct cpt_inline_ipsec_cfg_msg *req, + struct msg_rsp *rsp) +{ + u16 pcifunc = req->hdr.pcifunc; + struct rvu_block *block; + int cptlf, blkaddr, ret; + u16 actual_slot; + + blkaddr = rvu_get_blkaddr_from_slot(rvu, BLKTYPE_CPT, pcifunc, + req->slot, &actual_slot); + if (blkaddr < 0) + return CPT_AF_ERR_LF_INVALID; + + block = &rvu->hw->block[blkaddr]; + + cptlf = rvu_get_lf(rvu, block, pcifunc, actual_slot); + if (cptlf < 0) + return CPT_AF_ERR_LF_INVALID; + + switch (req->dir) { + case CPT_INLINE_INBOUND: + ret = cpt_inline_ipsec_cfg_inbound(rvu, blkaddr, cptlf, req); + break; + + case CPT_INLINE_OUTBOUND: + ret = cpt_inline_ipsec_cfg_outbound(rvu, blkaddr, cptlf, req); + break; + + default: + return CPT_AF_ERR_PARAM; + } + + return ret; +} + +static bool is_valid_offset(struct rvu *rvu, struct cpt_rd_wr_reg_msg *req) +{ + u64 offset = req->reg_offset; + int blkaddr, num_lfs, lf; + struct rvu_block *block; + struct rvu_pfvf *pfvf; + + blkaddr = validate_and_get_cpt_blkaddr(req->blkaddr); + if (blkaddr < 0) + return false; + + /* Registers that can be accessed from PF/VF */ + if ((offset & 0xFF000) == CPT_AF_LFX_CTL(0) || + (offset & 0xFF000) == CPT_AF_LFX_CTL2(0)) { + if (offset & 7) + return false; + + lf = (offset & 0xFFF) >> 3; + block = &rvu->hw->block[blkaddr]; + pfvf = rvu_get_pfvf(rvu, req->hdr.pcifunc); + num_lfs = rvu_get_rsrc_mapcount(pfvf, block->addr); + if (lf >= num_lfs) + /* Slot is not valid for that PF/VF */ + return false; + + /* Translate local LF used by VFs to global CPT LF */ + lf = rvu_get_lf(rvu, &rvu->hw->block[blkaddr], + req->hdr.pcifunc, lf); + if (lf < 0) + return false; + + return true; + } else if (!(req->hdr.pcifunc & RVU_PFVF_FUNC_MASK)) { + /* Registers that can be accessed from PF */ + switch (offset) { + case CPT_AF_DIAG: + case CPT_AF_CTL: + case CPT_AF_PF_FUNC: + case CPT_AF_BLK_RST: + case CPT_AF_CONSTANTS1: + case CPT_AF_CTX_FLUSH_TIMER: + return true; + } + + switch (offset & 0xFF000) { + case CPT_AF_EXEX_STS(0): + case CPT_AF_EXEX_CTL(0): + case CPT_AF_EXEX_CTL2(0): + case CPT_AF_EXEX_UCODE_BASE(0): + if (offset & 7) + return false; + break; + default: + return false; + } + return true; + } + return false; +} + +int rvu_mbox_handler_cpt_rd_wr_register(struct rvu *rvu, + struct cpt_rd_wr_reg_msg *req, + struct cpt_rd_wr_reg_msg *rsp) +{ + int blkaddr; + + blkaddr = validate_and_get_cpt_blkaddr(req->blkaddr); + if (blkaddr < 0) + return blkaddr; + + /* This message is accepted only if sent from CPT PF/VF */ + if (!is_cpt_pf(rvu, req->hdr.pcifunc) && + !is_cpt_vf(rvu, req->hdr.pcifunc)) + return CPT_AF_ERR_ACCESS_DENIED; + + rsp->reg_offset = req->reg_offset; + rsp->ret_val = req->ret_val; + rsp->is_write = req->is_write; + + if (!is_valid_offset(rvu, req)) + return CPT_AF_ERR_ACCESS_DENIED; + + if (req->is_write) + rvu_write64(rvu, blkaddr, req->reg_offset, req->val); + else + rsp->val = rvu_read64(rvu, blkaddr, req->reg_offset); + + return 0; +} + +static void get_ctx_pc(struct rvu *rvu, struct cpt_sts_rsp *rsp, int blkaddr) +{ + if (is_rvu_otx2(rvu)) + return; + + rsp->ctx_mis_pc = rvu_read64(rvu, blkaddr, CPT_AF_CTX_MIS_PC); + rsp->ctx_hit_pc = rvu_read64(rvu, blkaddr, CPT_AF_CTX_HIT_PC); + rsp->ctx_aop_pc = rvu_read64(rvu, blkaddr, CPT_AF_CTX_AOP_PC); + rsp->ctx_aop_lat_pc = rvu_read64(rvu, blkaddr, + CPT_AF_CTX_AOP_LATENCY_PC); + rsp->ctx_ifetch_pc = rvu_read64(rvu, blkaddr, CPT_AF_CTX_IFETCH_PC); + rsp->ctx_ifetch_lat_pc = rvu_read64(rvu, blkaddr, + CPT_AF_CTX_IFETCH_LATENCY_PC); + rsp->ctx_ffetch_pc = rvu_read64(rvu, blkaddr, CPT_AF_CTX_FFETCH_PC); + rsp->ctx_ffetch_lat_pc = rvu_read64(rvu, blkaddr, + CPT_AF_CTX_FFETCH_LATENCY_PC); + rsp->ctx_wback_pc = rvu_read64(rvu, blkaddr, CPT_AF_CTX_FFETCH_PC); + rsp->ctx_wback_lat_pc = rvu_read64(rvu, blkaddr, + CPT_AF_CTX_FFETCH_LATENCY_PC); + rsp->ctx_psh_pc = rvu_read64(rvu, blkaddr, CPT_AF_CTX_FFETCH_PC); + rsp->ctx_psh_lat_pc = rvu_read64(rvu, blkaddr, + CPT_AF_CTX_FFETCH_LATENCY_PC); + rsp->ctx_err = rvu_read64(rvu, blkaddr, CPT_AF_CTX_ERR); + rsp->ctx_enc_id = rvu_read64(rvu, blkaddr, CPT_AF_CTX_ENC_ID); + rsp->ctx_flush_timer = rvu_read64(rvu, blkaddr, CPT_AF_CTX_FLUSH_TIMER); + + rsp->rxc_time = rvu_read64(rvu, blkaddr, CPT_AF_RXC_TIME); + rsp->rxc_time_cfg = rvu_read64(rvu, blkaddr, CPT_AF_RXC_TIME_CFG); + rsp->rxc_active_sts = rvu_read64(rvu, blkaddr, CPT_AF_RXC_ACTIVE_STS); + rsp->rxc_zombie_sts = rvu_read64(rvu, blkaddr, CPT_AF_RXC_ZOMBIE_STS); + rsp->rxc_dfrg = rvu_read64(rvu, blkaddr, CPT_AF_RXC_DFRG); + rsp->x2p_link_cfg0 = rvu_read64(rvu, blkaddr, CPT_AF_X2PX_LINK_CFG(0)); + rsp->x2p_link_cfg1 = rvu_read64(rvu, blkaddr, CPT_AF_X2PX_LINK_CFG(1)); +} + +static void get_eng_sts(struct rvu *rvu, struct cpt_sts_rsp *rsp, int blkaddr) +{ + u16 max_ses, max_ies, max_aes; + u32 e_min = 0, e_max = 0; + u64 reg; + + reg = rvu_read64(rvu, blkaddr, CPT_AF_CONSTANTS1); + max_ses = reg & 0xffff; + max_ies = (reg >> 16) & 0xffff; + max_aes = (reg >> 32) & 0xffff; + + /* Get AE status */ + e_min = max_ses + max_ies; + e_max = max_ses + max_ies + max_aes; + cpt_get_eng_sts(e_min, e_max, rsp, ae); + /* Get SE status */ + e_min = 0; + e_max = max_ses; + cpt_get_eng_sts(e_min, e_max, rsp, se); + /* Get IE status */ + e_min = max_ses; + e_max = max_ses + max_ies; + cpt_get_eng_sts(e_min, e_max, rsp, ie); +} + +int rvu_mbox_handler_cpt_sts(struct rvu *rvu, struct cpt_sts_req *req, + struct cpt_sts_rsp *rsp) +{ + int blkaddr; + + blkaddr = validate_and_get_cpt_blkaddr(req->blkaddr); + if (blkaddr < 0) + return blkaddr; + + /* This message is accepted only if sent from CPT PF/VF */ + if (!is_cpt_pf(rvu, req->hdr.pcifunc) && + !is_cpt_vf(rvu, req->hdr.pcifunc)) + return CPT_AF_ERR_ACCESS_DENIED; + + get_ctx_pc(rvu, rsp, blkaddr); + + /* Get CPT engines status */ + get_eng_sts(rvu, rsp, blkaddr); + + /* Read CPT instruction PC registers */ + rsp->inst_req_pc = rvu_read64(rvu, blkaddr, CPT_AF_INST_REQ_PC); + rsp->inst_lat_pc = rvu_read64(rvu, blkaddr, CPT_AF_INST_LATENCY_PC); + rsp->rd_req_pc = rvu_read64(rvu, blkaddr, CPT_AF_RD_REQ_PC); + rsp->rd_lat_pc = rvu_read64(rvu, blkaddr, CPT_AF_RD_LATENCY_PC); + rsp->rd_uc_pc = rvu_read64(rvu, blkaddr, CPT_AF_RD_UC_PC); + rsp->active_cycles_pc = rvu_read64(rvu, blkaddr, + CPT_AF_ACTIVE_CYCLES_PC); + rsp->exe_err_info = rvu_read64(rvu, blkaddr, CPT_AF_EXE_ERR_INFO); + rsp->cptclk_cnt = rvu_read64(rvu, blkaddr, CPT_AF_CPTCLK_CNT); + rsp->diag = rvu_read64(rvu, blkaddr, CPT_AF_DIAG); + + return 0; +} + +#define RXC_ZOMBIE_THRES GENMASK_ULL(59, 48) +#define RXC_ZOMBIE_LIMIT GENMASK_ULL(43, 32) +#define RXC_ACTIVE_THRES GENMASK_ULL(27, 16) +#define RXC_ACTIVE_LIMIT GENMASK_ULL(11, 0) +#define RXC_ACTIVE_COUNT GENMASK_ULL(60, 48) +#define RXC_ZOMBIE_COUNT GENMASK_ULL(60, 48) + +static void cpt_rxc_time_cfg(struct rvu *rvu, struct cpt_rxc_time_cfg_req *req, + int blkaddr) +{ + u64 dfrg_reg; + + dfrg_reg = FIELD_PREP(RXC_ZOMBIE_THRES, req->zombie_thres); + dfrg_reg |= FIELD_PREP(RXC_ZOMBIE_LIMIT, req->zombie_limit); + dfrg_reg |= FIELD_PREP(RXC_ACTIVE_THRES, req->active_thres); + dfrg_reg |= FIELD_PREP(RXC_ACTIVE_LIMIT, req->active_limit); + + rvu_write64(rvu, blkaddr, CPT_AF_RXC_TIME_CFG, req->step); + rvu_write64(rvu, blkaddr, CPT_AF_RXC_DFRG, dfrg_reg); +} + +int rvu_mbox_handler_cpt_rxc_time_cfg(struct rvu *rvu, + struct cpt_rxc_time_cfg_req *req, + struct msg_rsp *rsp) +{ + int blkaddr; + + blkaddr = validate_and_get_cpt_blkaddr(req->blkaddr); + if (blkaddr < 0) + return blkaddr; + + /* This message is accepted only if sent from CPT PF/VF */ + if (!is_cpt_pf(rvu, req->hdr.pcifunc) && + !is_cpt_vf(rvu, req->hdr.pcifunc)) + return CPT_AF_ERR_ACCESS_DENIED; + + cpt_rxc_time_cfg(rvu, req, blkaddr); + + return 0; +} + +int rvu_mbox_handler_cpt_ctx_cache_sync(struct rvu *rvu, struct msg_req *req, + struct msg_rsp *rsp) +{ + return rvu_cpt_ctx_flush(rvu, req->hdr.pcifunc); +} + +static void cpt_rxc_teardown(struct rvu *rvu, int blkaddr) +{ + struct cpt_rxc_time_cfg_req req; + int timeout = 2000; + u64 reg; + + if (is_rvu_otx2(rvu)) + return; + + /* Set time limit to minimum values, so that rxc entries will be + * flushed out quickly. + */ + req.step = 1; + req.zombie_thres = 1; + req.zombie_limit = 1; + req.active_thres = 1; + req.active_limit = 1; + + cpt_rxc_time_cfg(rvu, &req, blkaddr); + + do { + reg = rvu_read64(rvu, blkaddr, CPT_AF_RXC_ACTIVE_STS); + udelay(1); + if (FIELD_GET(RXC_ACTIVE_COUNT, reg)) + timeout--; + else + break; + } while (timeout); + + if (timeout == 0) + dev_warn(rvu->dev, "Poll for RXC active count hits hard loop counter\n"); + + timeout = 2000; + do { + reg = rvu_read64(rvu, blkaddr, CPT_AF_RXC_ZOMBIE_STS); + udelay(1); + if (FIELD_GET(RXC_ZOMBIE_COUNT, reg)) + timeout--; + else + break; + } while (timeout); + + if (timeout == 0) + dev_warn(rvu->dev, "Poll for RXC zombie count hits hard loop counter\n"); +} + +#define INPROG_INFLIGHT(reg) ((reg) & 0x1FF) +#define INPROG_GRB_PARTIAL(reg) ((reg) & BIT_ULL(31)) +#define INPROG_GRB(reg) (((reg) >> 32) & 0xFF) +#define INPROG_GWB(reg) (((reg) >> 40) & 0xFF) + +static void cpt_lf_disable_iqueue(struct rvu *rvu, int blkaddr, int slot) +{ + int i = 0, hard_lp_ctr = 100000; + u64 inprog, grp_ptr; + u16 nq_ptr, dq_ptr; + + /* Disable instructions enqueuing */ + rvu_write64(rvu, blkaddr, CPT_AF_BAR2_ALIASX(slot, CPT_LF_CTL), 0x0); + + /* Disable executions in the LF's queue */ + inprog = rvu_read64(rvu, blkaddr, + CPT_AF_BAR2_ALIASX(slot, CPT_LF_INPROG)); + inprog &= ~BIT_ULL(16); + rvu_write64(rvu, blkaddr, + CPT_AF_BAR2_ALIASX(slot, CPT_LF_INPROG), inprog); + + /* Wait for CPT queue to become execution-quiescent */ + do { + inprog = rvu_read64(rvu, blkaddr, + CPT_AF_BAR2_ALIASX(slot, CPT_LF_INPROG)); + if (INPROG_GRB_PARTIAL(inprog)) { + i = 0; + hard_lp_ctr--; + } else { + i++; + } + + grp_ptr = rvu_read64(rvu, blkaddr, + CPT_AF_BAR2_ALIASX(slot, + CPT_LF_Q_GRP_PTR)); + nq_ptr = (grp_ptr >> 32) & 0x7FFF; + dq_ptr = grp_ptr & 0x7FFF; + + } while (hard_lp_ctr && (i < 10) && (nq_ptr != dq_ptr)); + + if (hard_lp_ctr == 0) + dev_warn(rvu->dev, "CPT FLR hits hard loop counter\n"); + + i = 0; + hard_lp_ctr = 100000; + do { + inprog = rvu_read64(rvu, blkaddr, + CPT_AF_BAR2_ALIASX(slot, CPT_LF_INPROG)); + + if ((INPROG_INFLIGHT(inprog) == 0) && + (INPROG_GWB(inprog) < 40) && + ((INPROG_GRB(inprog) == 0) || + (INPROG_GRB((inprog)) == 40))) { + i++; + } else { + i = 0; + hard_lp_ctr--; + } + } while (hard_lp_ctr && (i < 10)); + + if (hard_lp_ctr == 0) + dev_warn(rvu->dev, "CPT FLR hits hard loop counter\n"); +} + +int rvu_cpt_lf_teardown(struct rvu *rvu, u16 pcifunc, int blkaddr, int lf, int slot) +{ + u64 reg; + + if (is_cpt_pf(rvu, pcifunc) || is_cpt_vf(rvu, pcifunc)) + cpt_rxc_teardown(rvu, blkaddr); + + /* Enable BAR2 ALIAS for this pcifunc. */ + reg = BIT_ULL(16) | pcifunc; + rvu_write64(rvu, blkaddr, CPT_AF_BAR2_SEL, reg); + + cpt_lf_disable_iqueue(rvu, blkaddr, slot); + + /* Set group drop to help clear out hardware */ + reg = rvu_read64(rvu, blkaddr, CPT_AF_BAR2_ALIASX(slot, CPT_LF_INPROG)); + reg |= BIT_ULL(17); + rvu_write64(rvu, blkaddr, CPT_AF_BAR2_ALIASX(slot, CPT_LF_INPROG), reg); + + rvu_write64(rvu, blkaddr, CPT_AF_BAR2_SEL, 0); + + return 0; +} + +#define CPT_RES_LEN 16 +#define CPT_SE_IE_EGRP 1ULL + +static int cpt_inline_inb_lf_cmd_send(struct rvu *rvu, int blkaddr, + int nix_blkaddr) +{ + int cpt_pf_num = get_cpt_pf_num(rvu); + struct cpt_inst_lmtst_req *req; + dma_addr_t res_daddr; + int timeout = 3000; + u8 cpt_idx; + u64 *inst; + u16 *res; + int rc; + + res = kzalloc(CPT_RES_LEN, GFP_KERNEL); + if (!res) + return -ENOMEM; + + res_daddr = dma_map_single(rvu->dev, res, CPT_RES_LEN, + DMA_BIDIRECTIONAL); + if (dma_mapping_error(rvu->dev, res_daddr)) { + dev_err(rvu->dev, "DMA mapping failed for CPT result\n"); + rc = -EFAULT; + goto res_free; + } + *res = 0xFFFF; + + /* Send mbox message to CPT PF */ + req = (struct cpt_inst_lmtst_req *) + otx2_mbox_alloc_msg_rsp(&rvu->afpf_wq_info.mbox_up, + cpt_pf_num, sizeof(*req), + sizeof(struct msg_rsp)); + if (!req) { + rc = -ENOMEM; + goto res_daddr_unmap; + } + req->hdr.sig = OTX2_MBOX_REQ_SIG; + req->hdr.id = MBOX_MSG_CPT_INST_LMTST; + + inst = req->inst; + /* Prepare CPT_INST_S */ + inst[0] = 0; + inst[1] = res_daddr; + /* AF PF FUNC */ + inst[2] = 0; + /* Set QORD */ + inst[3] = 1; + inst[4] = 0; + inst[5] = 0; + inst[6] = 0; + /* Set EGRP */ + inst[7] = CPT_SE_IE_EGRP << 61; + + /* Subtract 1 from the NIX-CPT credit count to preserve + * credit counts. + */ + cpt_idx = (blkaddr == BLKADDR_CPT0) ? 0 : 1; + rvu_write64(rvu, nix_blkaddr, NIX_AF_RX_CPTX_CREDIT(cpt_idx), + BIT_ULL(22) - 1); + + otx2_mbox_msg_send(&rvu->afpf_wq_info.mbox_up, cpt_pf_num); + rc = otx2_mbox_wait_for_rsp(&rvu->afpf_wq_info.mbox_up, cpt_pf_num); + if (rc) + dev_warn(rvu->dev, "notification to pf %d failed\n", + cpt_pf_num); + /* Wait for CPT instruction to be completed */ + do { + mdelay(1); + if (*res == 0xFFFF) + timeout--; + else + break; + } while (timeout); + + if (timeout == 0) + dev_warn(rvu->dev, "Poll for result hits hard loop counter\n"); + +res_daddr_unmap: + dma_unmap_single(rvu->dev, res_daddr, CPT_RES_LEN, DMA_BIDIRECTIONAL); +res_free: + kfree(res); + + return 0; +} + +#define CTX_CAM_PF_FUNC GENMASK_ULL(61, 46) +#define CTX_CAM_CPTR GENMASK_ULL(45, 0) + +int rvu_cpt_ctx_flush(struct rvu *rvu, u16 pcifunc) +{ + int nix_blkaddr, blkaddr; + u16 max_ctx_entries, i; + int slot = 0, num_lfs; + u64 reg, cam_data; + int rc; + + nix_blkaddr = rvu_get_blkaddr(rvu, BLKTYPE_NIX, pcifunc); + if (nix_blkaddr < 0) + return -EINVAL; + + if (is_rvu_otx2(rvu)) + return 0; + + blkaddr = (nix_blkaddr == BLKADDR_NIX1) ? BLKADDR_CPT1 : BLKADDR_CPT0; + + /* Submit CPT_INST_S to track when all packets have been + * flushed through for the NIX PF FUNC in inline inbound case. + */ + rc = cpt_inline_inb_lf_cmd_send(rvu, blkaddr, nix_blkaddr); + if (rc) + return rc; + + /* Wait for rxc entries to be flushed out */ + cpt_rxc_teardown(rvu, blkaddr); + + reg = rvu_read64(rvu, blkaddr, CPT_AF_CONSTANTS0); + max_ctx_entries = (reg >> 48) & 0xFFF; + + mutex_lock(&rvu->rsrc_lock); + + num_lfs = rvu_get_rsrc_mapcount(rvu_get_pfvf(rvu, pcifunc), + blkaddr); + if (num_lfs == 0) { + dev_warn(rvu->dev, "CPT LF is not configured\n"); + goto unlock; + } + + /* Enable BAR2 ALIAS for this pcifunc. */ + reg = BIT_ULL(16) | pcifunc; + rvu_write64(rvu, blkaddr, CPT_AF_BAR2_SEL, reg); + + for (i = 0; i < max_ctx_entries; i++) { + cam_data = rvu_read64(rvu, blkaddr, CPT_AF_CTX_CAM_DATA(i)); + + if ((FIELD_GET(CTX_CAM_PF_FUNC, cam_data) == pcifunc) && + FIELD_GET(CTX_CAM_CPTR, cam_data)) { + reg = BIT_ULL(46) | FIELD_GET(CTX_CAM_CPTR, cam_data); + rvu_write64(rvu, blkaddr, + CPT_AF_BAR2_ALIASX(slot, CPT_LF_CTX_FLUSH), + reg); + } + } + rvu_write64(rvu, blkaddr, CPT_AF_BAR2_SEL, 0); + +unlock: + mutex_unlock(&rvu->rsrc_lock); + + return 0; +} diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rvu_debugfs.c b/drivers/net/ethernet/marvell/octeontx2/af/rvu_debugfs.c new file mode 100644 index 000000000..cc5d342e0 --- /dev/null +++ b/drivers/net/ethernet/marvell/octeontx2/af/rvu_debugfs.c @@ -0,0 +1,3423 @@ +// SPDX-License-Identifier: GPL-2.0 +/* Marvell RVU Admin Function driver + * + * Copyright (C) 2019 Marvell. + * + */ + +#ifdef CONFIG_DEBUG_FS + +#include <linux/fs.h> +#include <linux/debugfs.h> +#include <linux/module.h> +#include <linux/pci.h> + +#include "rvu_struct.h" +#include "rvu_reg.h" +#include "rvu.h" +#include "cgx.h" +#include "lmac_common.h" +#include "npc.h" +#include "rvu_npc_hash.h" +#include "mcs.h" + +#define DEBUGFS_DIR_NAME "octeontx2" + +enum { + CGX_STAT0, + CGX_STAT1, + CGX_STAT2, + CGX_STAT3, + CGX_STAT4, + CGX_STAT5, + CGX_STAT6, + CGX_STAT7, + CGX_STAT8, + CGX_STAT9, + CGX_STAT10, + CGX_STAT11, + CGX_STAT12, + CGX_STAT13, + CGX_STAT14, + CGX_STAT15, + CGX_STAT16, + CGX_STAT17, + CGX_STAT18, +}; + +/* NIX TX stats */ +enum nix_stat_lf_tx { + TX_UCAST = 0x0, + TX_BCAST = 0x1, + TX_MCAST = 0x2, + TX_DROP = 0x3, + TX_OCTS = 0x4, + TX_STATS_ENUM_LAST, +}; + +/* NIX RX stats */ +enum nix_stat_lf_rx { + RX_OCTS = 0x0, + RX_UCAST = 0x1, + RX_BCAST = 0x2, + RX_MCAST = 0x3, + RX_DROP = 0x4, + RX_DROP_OCTS = 0x5, + RX_FCS = 0x6, + RX_ERR = 0x7, + RX_DRP_BCAST = 0x8, + RX_DRP_MCAST = 0x9, + RX_DRP_L3BCAST = 0xa, + RX_DRP_L3MCAST = 0xb, + RX_STATS_ENUM_LAST, +}; + +static char *cgx_rx_stats_fields[] = { + [CGX_STAT0] = "Received packets", + [CGX_STAT1] = "Octets of received packets", + [CGX_STAT2] = "Received PAUSE packets", + [CGX_STAT3] = "Received PAUSE and control packets", + [CGX_STAT4] = "Filtered DMAC0 (NIX-bound) packets", + [CGX_STAT5] = "Filtered DMAC0 (NIX-bound) octets", + [CGX_STAT6] = "Packets dropped due to RX FIFO full", + [CGX_STAT7] = "Octets dropped due to RX FIFO full", + [CGX_STAT8] = "Error packets", + [CGX_STAT9] = "Filtered DMAC1 (NCSI-bound) packets", + [CGX_STAT10] = "Filtered DMAC1 (NCSI-bound) octets", + [CGX_STAT11] = "NCSI-bound packets dropped", + [CGX_STAT12] = "NCSI-bound octets dropped", +}; + +static char *cgx_tx_stats_fields[] = { + [CGX_STAT0] = "Packets dropped due to excessive collisions", + [CGX_STAT1] = "Packets dropped due to excessive deferral", + [CGX_STAT2] = "Multiple collisions before successful transmission", + [CGX_STAT3] = "Single collisions before successful transmission", + [CGX_STAT4] = "Total octets sent on the interface", + [CGX_STAT5] = "Total frames sent on the interface", + [CGX_STAT6] = "Packets sent with an octet count < 64", + [CGX_STAT7] = "Packets sent with an octet count == 64", + [CGX_STAT8] = "Packets sent with an octet count of 65-127", + [CGX_STAT9] = "Packets sent with an octet count of 128-255", + [CGX_STAT10] = "Packets sent with an octet count of 256-511", + [CGX_STAT11] = "Packets sent with an octet count of 512-1023", + [CGX_STAT12] = "Packets sent with an octet count of 1024-1518", + [CGX_STAT13] = "Packets sent with an octet count of > 1518", + [CGX_STAT14] = "Packets sent to a broadcast DMAC", + [CGX_STAT15] = "Packets sent to the multicast DMAC", + [CGX_STAT16] = "Transmit underflow and were truncated", + [CGX_STAT17] = "Control/PAUSE packets sent", +}; + +static char *rpm_rx_stats_fields[] = { + "Octets of received packets", + "Octets of received packets with out error", + "Received packets with alignment errors", + "Control/PAUSE packets received", + "Packets received with Frame too long Errors", + "Packets received with a1nrange length Errors", + "Received packets", + "Packets received with FrameCheckSequenceErrors", + "Packets received with VLAN header", + "Error packets", + "Packets received with unicast DMAC", + "Packets received with multicast DMAC", + "Packets received with broadcast DMAC", + "Dropped packets", + "Total frames received on interface", + "Packets received with an octet count < 64", + "Packets received with an octet count == 64", + "Packets received with an octet count of 65-127", + "Packets received with an octet count of 128-255", + "Packets received with an octet count of 256-511", + "Packets received with an octet count of 512-1023", + "Packets received with an octet count of 1024-1518", + "Packets received with an octet count of > 1518", + "Oversized Packets", + "Jabber Packets", + "Fragmented Packets", + "CBFC(class based flow control) pause frames received for class 0", + "CBFC pause frames received for class 1", + "CBFC pause frames received for class 2", + "CBFC pause frames received for class 3", + "CBFC pause frames received for class 4", + "CBFC pause frames received for class 5", + "CBFC pause frames received for class 6", + "CBFC pause frames received for class 7", + "CBFC pause frames received for class 8", + "CBFC pause frames received for class 9", + "CBFC pause frames received for class 10", + "CBFC pause frames received for class 11", + "CBFC pause frames received for class 12", + "CBFC pause frames received for class 13", + "CBFC pause frames received for class 14", + "CBFC pause frames received for class 15", + "MAC control packets received", +}; + +static char *rpm_tx_stats_fields[] = { + "Total octets sent on the interface", + "Total octets transmitted OK", + "Control/Pause frames sent", + "Total frames transmitted OK", + "Total frames sent with VLAN header", + "Error Packets", + "Packets sent to unicast DMAC", + "Packets sent to the multicast DMAC", + "Packets sent to a broadcast DMAC", + "Packets sent with an octet count == 64", + "Packets sent with an octet count of 65-127", + "Packets sent with an octet count of 128-255", + "Packets sent with an octet count of 256-511", + "Packets sent with an octet count of 512-1023", + "Packets sent with an octet count of 1024-1518", + "Packets sent with an octet count of > 1518", + "CBFC(class based flow control) pause frames transmitted for class 0", + "CBFC pause frames transmitted for class 1", + "CBFC pause frames transmitted for class 2", + "CBFC pause frames transmitted for class 3", + "CBFC pause frames transmitted for class 4", + "CBFC pause frames transmitted for class 5", + "CBFC pause frames transmitted for class 6", + "CBFC pause frames transmitted for class 7", + "CBFC pause frames transmitted for class 8", + "CBFC pause frames transmitted for class 9", + "CBFC pause frames transmitted for class 10", + "CBFC pause frames transmitted for class 11", + "CBFC pause frames transmitted for class 12", + "CBFC pause frames transmitted for class 13", + "CBFC pause frames transmitted for class 14", + "CBFC pause frames transmitted for class 15", + "MAC control packets sent", + "Total frames sent on the interface" +}; + +enum cpt_eng_type { + CPT_AE_TYPE = 1, + CPT_SE_TYPE = 2, + CPT_IE_TYPE = 3, +}; + +#define rvu_dbg_NULL NULL +#define rvu_dbg_open_NULL NULL + +#define RVU_DEBUG_SEQ_FOPS(name, read_op, write_op) \ +static int rvu_dbg_open_##name(struct inode *inode, struct file *file) \ +{ \ + return single_open(file, rvu_dbg_##read_op, inode->i_private); \ +} \ +static const struct file_operations rvu_dbg_##name##_fops = { \ + .owner = THIS_MODULE, \ + .open = rvu_dbg_open_##name, \ + .read = seq_read, \ + .write = rvu_dbg_##write_op, \ + .llseek = seq_lseek, \ + .release = single_release, \ +} + +#define RVU_DEBUG_FOPS(name, read_op, write_op) \ +static const struct file_operations rvu_dbg_##name##_fops = { \ + .owner = THIS_MODULE, \ + .open = simple_open, \ + .read = rvu_dbg_##read_op, \ + .write = rvu_dbg_##write_op \ +} + +static void print_nix_qsize(struct seq_file *filp, struct rvu_pfvf *pfvf); + +static int rvu_dbg_mcs_port_stats_display(struct seq_file *filp, void *unused, int dir) +{ + struct mcs *mcs = filp->private; + struct mcs_port_stats stats; + int lmac; + + seq_puts(filp, "\n port stats\n"); + mutex_lock(&mcs->stats_lock); + for_each_set_bit(lmac, &mcs->hw->lmac_bmap, mcs->hw->lmac_cnt) { + mcs_get_port_stats(mcs, &stats, lmac, dir); + seq_printf(filp, "port%d: Tcam Miss: %lld\n", lmac, stats.tcam_miss_cnt); + seq_printf(filp, "port%d: Parser errors: %lld\n", lmac, stats.parser_err_cnt); + + if (dir == MCS_RX && mcs->hw->mcs_blks > 1) + seq_printf(filp, "port%d: Preempt error: %lld\n", lmac, + stats.preempt_err_cnt); + if (dir == MCS_TX) + seq_printf(filp, "port%d: Sectag insert error: %lld\n", lmac, + stats.sectag_insert_err_cnt); + } + mutex_unlock(&mcs->stats_lock); + return 0; +} + +static int rvu_dbg_mcs_rx_port_stats_display(struct seq_file *filp, void *unused) +{ + return rvu_dbg_mcs_port_stats_display(filp, unused, MCS_RX); +} + +RVU_DEBUG_SEQ_FOPS(mcs_rx_port_stats, mcs_rx_port_stats_display, NULL); + +static int rvu_dbg_mcs_tx_port_stats_display(struct seq_file *filp, void *unused) +{ + return rvu_dbg_mcs_port_stats_display(filp, unused, MCS_TX); +} + +RVU_DEBUG_SEQ_FOPS(mcs_tx_port_stats, mcs_tx_port_stats_display, NULL); + +static int rvu_dbg_mcs_sa_stats_display(struct seq_file *filp, void *unused, int dir) +{ + struct mcs *mcs = filp->private; + struct mcs_sa_stats stats; + struct rsrc_bmap *map; + int sa_id; + + if (dir == MCS_TX) { + map = &mcs->tx.sa; + mutex_lock(&mcs->stats_lock); + for_each_set_bit(sa_id, map->bmap, mcs->hw->sa_entries) { + seq_puts(filp, "\n TX SA stats\n"); + mcs_get_sa_stats(mcs, &stats, sa_id, MCS_TX); + seq_printf(filp, "sa%d: Pkts encrypted: %lld\n", sa_id, + stats.pkt_encrypt_cnt); + + seq_printf(filp, "sa%d: Pkts protected: %lld\n", sa_id, + stats.pkt_protected_cnt); + } + mutex_unlock(&mcs->stats_lock); + return 0; + } + + /* RX stats */ + map = &mcs->rx.sa; + mutex_lock(&mcs->stats_lock); + for_each_set_bit(sa_id, map->bmap, mcs->hw->sa_entries) { + seq_puts(filp, "\n RX SA stats\n"); + mcs_get_sa_stats(mcs, &stats, sa_id, MCS_RX); + seq_printf(filp, "sa%d: Invalid pkts: %lld\n", sa_id, stats.pkt_invalid_cnt); + seq_printf(filp, "sa%d: Pkts no sa error: %lld\n", sa_id, stats.pkt_nosaerror_cnt); + seq_printf(filp, "sa%d: Pkts not valid: %lld\n", sa_id, stats.pkt_notvalid_cnt); + seq_printf(filp, "sa%d: Pkts ok: %lld\n", sa_id, stats.pkt_ok_cnt); + seq_printf(filp, "sa%d: Pkts no sa: %lld\n", sa_id, stats.pkt_nosa_cnt); + } + mutex_unlock(&mcs->stats_lock); + return 0; +} + +static int rvu_dbg_mcs_rx_sa_stats_display(struct seq_file *filp, void *unused) +{ + return rvu_dbg_mcs_sa_stats_display(filp, unused, MCS_RX); +} + +RVU_DEBUG_SEQ_FOPS(mcs_rx_sa_stats, mcs_rx_sa_stats_display, NULL); + +static int rvu_dbg_mcs_tx_sa_stats_display(struct seq_file *filp, void *unused) +{ + return rvu_dbg_mcs_sa_stats_display(filp, unused, MCS_TX); +} + +RVU_DEBUG_SEQ_FOPS(mcs_tx_sa_stats, mcs_tx_sa_stats_display, NULL); + +static int rvu_dbg_mcs_tx_sc_stats_display(struct seq_file *filp, void *unused) +{ + struct mcs *mcs = filp->private; + struct mcs_sc_stats stats; + struct rsrc_bmap *map; + int sc_id; + + map = &mcs->tx.sc; + seq_puts(filp, "\n SC stats\n"); + + mutex_lock(&mcs->stats_lock); + for_each_set_bit(sc_id, map->bmap, mcs->hw->sc_entries) { + mcs_get_sc_stats(mcs, &stats, sc_id, MCS_TX); + seq_printf(filp, "\n=======sc%d======\n\n", sc_id); + seq_printf(filp, "sc%d: Pkts encrypted: %lld\n", sc_id, stats.pkt_encrypt_cnt); + seq_printf(filp, "sc%d: Pkts protected: %lld\n", sc_id, stats.pkt_protected_cnt); + + if (mcs->hw->mcs_blks == 1) { + seq_printf(filp, "sc%d: Octets encrypted: %lld\n", sc_id, + stats.octet_encrypt_cnt); + seq_printf(filp, "sc%d: Octets protected: %lld\n", sc_id, + stats.octet_protected_cnt); + } + } + mutex_unlock(&mcs->stats_lock); + return 0; +} + +RVU_DEBUG_SEQ_FOPS(mcs_tx_sc_stats, mcs_tx_sc_stats_display, NULL); + +static int rvu_dbg_mcs_rx_sc_stats_display(struct seq_file *filp, void *unused) +{ + struct mcs *mcs = filp->private; + struct mcs_sc_stats stats; + struct rsrc_bmap *map; + int sc_id; + + map = &mcs->rx.sc; + seq_puts(filp, "\n SC stats\n"); + + mutex_lock(&mcs->stats_lock); + for_each_set_bit(sc_id, map->bmap, mcs->hw->sc_entries) { + mcs_get_sc_stats(mcs, &stats, sc_id, MCS_RX); + seq_printf(filp, "\n=======sc%d======\n\n", sc_id); + seq_printf(filp, "sc%d: Cam hits: %lld\n", sc_id, stats.hit_cnt); + seq_printf(filp, "sc%d: Invalid pkts: %lld\n", sc_id, stats.pkt_invalid_cnt); + seq_printf(filp, "sc%d: Late pkts: %lld\n", sc_id, stats.pkt_late_cnt); + seq_printf(filp, "sc%d: Notvalid pkts: %lld\n", sc_id, stats.pkt_notvalid_cnt); + seq_printf(filp, "sc%d: Unchecked pkts: %lld\n", sc_id, stats.pkt_unchecked_cnt); + + if (mcs->hw->mcs_blks > 1) { + seq_printf(filp, "sc%d: Delay pkts: %lld\n", sc_id, stats.pkt_delay_cnt); + seq_printf(filp, "sc%d: Pkts ok: %lld\n", sc_id, stats.pkt_ok_cnt); + } + if (mcs->hw->mcs_blks == 1) { + seq_printf(filp, "sc%d: Octets decrypted: %lld\n", sc_id, + stats.octet_decrypt_cnt); + seq_printf(filp, "sc%d: Octets validated: %lld\n", sc_id, + stats.octet_validate_cnt); + } + } + mutex_unlock(&mcs->stats_lock); + return 0; +} + +RVU_DEBUG_SEQ_FOPS(mcs_rx_sc_stats, mcs_rx_sc_stats_display, NULL); + +static int rvu_dbg_mcs_flowid_stats_display(struct seq_file *filp, void *unused, int dir) +{ + struct mcs *mcs = filp->private; + struct mcs_flowid_stats stats; + struct rsrc_bmap *map; + int flow_id; + + seq_puts(filp, "\n Flowid stats\n"); + + if (dir == MCS_RX) + map = &mcs->rx.flow_ids; + else + map = &mcs->tx.flow_ids; + + mutex_lock(&mcs->stats_lock); + for_each_set_bit(flow_id, map->bmap, mcs->hw->tcam_entries) { + mcs_get_flowid_stats(mcs, &stats, flow_id, dir); + seq_printf(filp, "Flowid%d: Hit:%lld\n", flow_id, stats.tcam_hit_cnt); + } + mutex_unlock(&mcs->stats_lock); + return 0; +} + +static int rvu_dbg_mcs_tx_flowid_stats_display(struct seq_file *filp, void *unused) +{ + return rvu_dbg_mcs_flowid_stats_display(filp, unused, MCS_TX); +} + +RVU_DEBUG_SEQ_FOPS(mcs_tx_flowid_stats, mcs_tx_flowid_stats_display, NULL); + +static int rvu_dbg_mcs_rx_flowid_stats_display(struct seq_file *filp, void *unused) +{ + return rvu_dbg_mcs_flowid_stats_display(filp, unused, MCS_RX); +} + +RVU_DEBUG_SEQ_FOPS(mcs_rx_flowid_stats, mcs_rx_flowid_stats_display, NULL); + +static int rvu_dbg_mcs_tx_secy_stats_display(struct seq_file *filp, void *unused) +{ + struct mcs *mcs = filp->private; + struct mcs_secy_stats stats; + struct rsrc_bmap *map; + int secy_id; + + map = &mcs->tx.secy; + seq_puts(filp, "\n MCS TX secy stats\n"); + + mutex_lock(&mcs->stats_lock); + for_each_set_bit(secy_id, map->bmap, mcs->hw->secy_entries) { + mcs_get_tx_secy_stats(mcs, &stats, secy_id); + seq_printf(filp, "\n=======Secy%d======\n\n", secy_id); + seq_printf(filp, "secy%d: Ctrl bcast pkts: %lld\n", secy_id, + stats.ctl_pkt_bcast_cnt); + seq_printf(filp, "secy%d: Ctrl Mcast pkts: %lld\n", secy_id, + stats.ctl_pkt_mcast_cnt); + seq_printf(filp, "secy%d: Ctrl ucast pkts: %lld\n", secy_id, + stats.ctl_pkt_ucast_cnt); + seq_printf(filp, "secy%d: Ctrl octets: %lld\n", secy_id, stats.ctl_octet_cnt); + seq_printf(filp, "secy%d: Unctrl bcast cnt: %lld\n", secy_id, + stats.unctl_pkt_bcast_cnt); + seq_printf(filp, "secy%d: Unctrl mcast pkts: %lld\n", secy_id, + stats.unctl_pkt_mcast_cnt); + seq_printf(filp, "secy%d: Unctrl ucast pkts: %lld\n", secy_id, + stats.unctl_pkt_ucast_cnt); + seq_printf(filp, "secy%d: Unctrl octets: %lld\n", secy_id, stats.unctl_octet_cnt); + seq_printf(filp, "secy%d: Octet encrypted: %lld\n", secy_id, + stats.octet_encrypted_cnt); + seq_printf(filp, "secy%d: octet protected: %lld\n", secy_id, + stats.octet_protected_cnt); + seq_printf(filp, "secy%d: Pkts on active sa: %lld\n", secy_id, + stats.pkt_noactivesa_cnt); + seq_printf(filp, "secy%d: Pkts too long: %lld\n", secy_id, stats.pkt_toolong_cnt); + seq_printf(filp, "secy%d: Pkts untagged: %lld\n", secy_id, stats.pkt_untagged_cnt); + } + mutex_unlock(&mcs->stats_lock); + return 0; +} + +RVU_DEBUG_SEQ_FOPS(mcs_tx_secy_stats, mcs_tx_secy_stats_display, NULL); + +static int rvu_dbg_mcs_rx_secy_stats_display(struct seq_file *filp, void *unused) +{ + struct mcs *mcs = filp->private; + struct mcs_secy_stats stats; + struct rsrc_bmap *map; + int secy_id; + + map = &mcs->rx.secy; + seq_puts(filp, "\n MCS secy stats\n"); + + mutex_lock(&mcs->stats_lock); + for_each_set_bit(secy_id, map->bmap, mcs->hw->secy_entries) { + mcs_get_rx_secy_stats(mcs, &stats, secy_id); + seq_printf(filp, "\n=======Secy%d======\n\n", secy_id); + seq_printf(filp, "secy%d: Ctrl bcast pkts: %lld\n", secy_id, + stats.ctl_pkt_bcast_cnt); + seq_printf(filp, "secy%d: Ctrl Mcast pkts: %lld\n", secy_id, + stats.ctl_pkt_mcast_cnt); + seq_printf(filp, "secy%d: Ctrl ucast pkts: %lld\n", secy_id, + stats.ctl_pkt_ucast_cnt); + seq_printf(filp, "secy%d: Ctrl octets: %lld\n", secy_id, stats.ctl_octet_cnt); + seq_printf(filp, "secy%d: Unctrl bcast cnt: %lld\n", secy_id, + stats.unctl_pkt_bcast_cnt); + seq_printf(filp, "secy%d: Unctrl mcast pkts: %lld\n", secy_id, + stats.unctl_pkt_mcast_cnt); + seq_printf(filp, "secy%d: Unctrl ucast pkts: %lld\n", secy_id, + stats.unctl_pkt_ucast_cnt); + seq_printf(filp, "secy%d: Unctrl octets: %lld\n", secy_id, stats.unctl_octet_cnt); + seq_printf(filp, "secy%d: Octet decrypted: %lld\n", secy_id, + stats.octet_decrypted_cnt); + seq_printf(filp, "secy%d: octet validated: %lld\n", secy_id, + stats.octet_validated_cnt); + seq_printf(filp, "secy%d: Pkts on disable port: %lld\n", secy_id, + stats.pkt_port_disabled_cnt); + seq_printf(filp, "secy%d: Pkts with badtag: %lld\n", secy_id, stats.pkt_badtag_cnt); + seq_printf(filp, "secy%d: Pkts with no SA(sectag.tci.c=0): %lld\n", secy_id, + stats.pkt_nosa_cnt); + seq_printf(filp, "secy%d: Pkts with nosaerror: %lld\n", secy_id, + stats.pkt_nosaerror_cnt); + seq_printf(filp, "secy%d: Tagged ctrl pkts: %lld\n", secy_id, + stats.pkt_tagged_ctl_cnt); + seq_printf(filp, "secy%d: Untaged pkts: %lld\n", secy_id, stats.pkt_untaged_cnt); + seq_printf(filp, "secy%d: Ctrl pkts: %lld\n", secy_id, stats.pkt_ctl_cnt); + if (mcs->hw->mcs_blks > 1) + seq_printf(filp, "secy%d: pkts notag: %lld\n", secy_id, + stats.pkt_notag_cnt); + } + mutex_unlock(&mcs->stats_lock); + return 0; +} + +RVU_DEBUG_SEQ_FOPS(mcs_rx_secy_stats, mcs_rx_secy_stats_display, NULL); + +static void rvu_dbg_mcs_init(struct rvu *rvu) +{ + struct mcs *mcs; + char dname[10]; + int i; + + if (!rvu->mcs_blk_cnt) + return; + + rvu->rvu_dbg.mcs_root = debugfs_create_dir("mcs", rvu->rvu_dbg.root); + + for (i = 0; i < rvu->mcs_blk_cnt; i++) { + mcs = mcs_get_pdata(i); + + sprintf(dname, "mcs%d", i); + rvu->rvu_dbg.mcs = debugfs_create_dir(dname, + rvu->rvu_dbg.mcs_root); + + rvu->rvu_dbg.mcs_rx = debugfs_create_dir("rx_stats", rvu->rvu_dbg.mcs); + + debugfs_create_file("flowid", 0600, rvu->rvu_dbg.mcs_rx, mcs, + &rvu_dbg_mcs_rx_flowid_stats_fops); + + debugfs_create_file("secy", 0600, rvu->rvu_dbg.mcs_rx, mcs, + &rvu_dbg_mcs_rx_secy_stats_fops); + + debugfs_create_file("sc", 0600, rvu->rvu_dbg.mcs_rx, mcs, + &rvu_dbg_mcs_rx_sc_stats_fops); + + debugfs_create_file("sa", 0600, rvu->rvu_dbg.mcs_rx, mcs, + &rvu_dbg_mcs_rx_sa_stats_fops); + + debugfs_create_file("port", 0600, rvu->rvu_dbg.mcs_rx, mcs, + &rvu_dbg_mcs_rx_port_stats_fops); + + rvu->rvu_dbg.mcs_tx = debugfs_create_dir("tx_stats", rvu->rvu_dbg.mcs); + + debugfs_create_file("flowid", 0600, rvu->rvu_dbg.mcs_tx, mcs, + &rvu_dbg_mcs_tx_flowid_stats_fops); + + debugfs_create_file("secy", 0600, rvu->rvu_dbg.mcs_tx, mcs, + &rvu_dbg_mcs_tx_secy_stats_fops); + + debugfs_create_file("sc", 0600, rvu->rvu_dbg.mcs_tx, mcs, + &rvu_dbg_mcs_tx_sc_stats_fops); + + debugfs_create_file("sa", 0600, rvu->rvu_dbg.mcs_tx, mcs, + &rvu_dbg_mcs_tx_sa_stats_fops); + + debugfs_create_file("port", 0600, rvu->rvu_dbg.mcs_tx, mcs, + &rvu_dbg_mcs_tx_port_stats_fops); + } +} + +#define LMT_MAPTBL_ENTRY_SIZE 16 +/* Dump LMTST map table */ +static ssize_t rvu_dbg_lmtst_map_table_display(struct file *filp, + char __user *buffer, + size_t count, loff_t *ppos) +{ + struct rvu *rvu = filp->private_data; + u64 lmt_addr, val, tbl_base; + int pf, vf, num_vfs, hw_vfs; + void __iomem *lmt_map_base; + int buf_size = 10240; + size_t off = 0; + int index = 0; + char *buf; + int ret; + + /* don't allow partial reads */ + if (*ppos != 0) + return 0; + + buf = kzalloc(buf_size, GFP_KERNEL); + if (!buf) + return -ENOMEM; + + tbl_base = rvu_read64(rvu, BLKADDR_APR, APR_AF_LMT_MAP_BASE); + + lmt_map_base = ioremap_wc(tbl_base, 128 * 1024); + if (!lmt_map_base) { + dev_err(rvu->dev, "Failed to setup lmt map table mapping!!\n"); + kfree(buf); + return false; + } + + off += scnprintf(&buf[off], buf_size - 1 - off, + "\n\t\t\t\t\tLmtst Map Table Entries"); + off += scnprintf(&buf[off], buf_size - 1 - off, + "\n\t\t\t\t\t======================="); + off += scnprintf(&buf[off], buf_size - 1 - off, "\nPcifunc\t\t\t"); + off += scnprintf(&buf[off], buf_size - 1 - off, "Table Index\t\t"); + off += scnprintf(&buf[off], buf_size - 1 - off, + "Lmtline Base (word 0)\t\t"); + off += scnprintf(&buf[off], buf_size - 1 - off, + "Lmt Map Entry (word 1)"); + off += scnprintf(&buf[off], buf_size - 1 - off, "\n"); + for (pf = 0; pf < rvu->hw->total_pfs; pf++) { + off += scnprintf(&buf[off], buf_size - 1 - off, "PF%d \t\t\t", + pf); + + index = pf * rvu->hw->total_vfs * LMT_MAPTBL_ENTRY_SIZE; + off += scnprintf(&buf[off], buf_size - 1 - off, " 0x%llx\t\t", + (tbl_base + index)); + lmt_addr = readq(lmt_map_base + index); + off += scnprintf(&buf[off], buf_size - 1 - off, + " 0x%016llx\t\t", lmt_addr); + index += 8; + val = readq(lmt_map_base + index); + off += scnprintf(&buf[off], buf_size - 1 - off, " 0x%016llx\n", + val); + /* Reading num of VFs per PF */ + rvu_get_pf_numvfs(rvu, pf, &num_vfs, &hw_vfs); + for (vf = 0; vf < num_vfs; vf++) { + index = (pf * rvu->hw->total_vfs * 16) + + ((vf + 1) * LMT_MAPTBL_ENTRY_SIZE); + off += scnprintf(&buf[off], buf_size - 1 - off, + "PF%d:VF%d \t\t", pf, vf); + off += scnprintf(&buf[off], buf_size - 1 - off, + " 0x%llx\t\t", (tbl_base + index)); + lmt_addr = readq(lmt_map_base + index); + off += scnprintf(&buf[off], buf_size - 1 - off, + " 0x%016llx\t\t", lmt_addr); + index += 8; + val = readq(lmt_map_base + index); + off += scnprintf(&buf[off], buf_size - 1 - off, + " 0x%016llx\n", val); + } + } + off += scnprintf(&buf[off], buf_size - 1 - off, "\n"); + + ret = min(off, count); + if (copy_to_user(buffer, buf, ret)) + ret = -EFAULT; + kfree(buf); + + iounmap(lmt_map_base); + if (ret < 0) + return ret; + + *ppos = ret; + return ret; +} + +RVU_DEBUG_FOPS(lmtst_map_table, lmtst_map_table_display, NULL); + +static void get_lf_str_list(struct rvu_block block, int pcifunc, + char *lfs) +{ + int lf = 0, seq = 0, len = 0, prev_lf = block.lf.max; + + for_each_set_bit(lf, block.lf.bmap, block.lf.max) { + if (lf >= block.lf.max) + break; + + if (block.fn_map[lf] != pcifunc) + continue; + + if (lf == prev_lf + 1) { + prev_lf = lf; + seq = 1; + continue; + } + + if (seq) + len += sprintf(lfs + len, "-%d,%d", prev_lf, lf); + else + len += (len ? sprintf(lfs + len, ",%d", lf) : + sprintf(lfs + len, "%d", lf)); + + prev_lf = lf; + seq = 0; + } + + if (seq) + len += sprintf(lfs + len, "-%d", prev_lf); + + lfs[len] = '\0'; +} + +static int get_max_column_width(struct rvu *rvu) +{ + int index, pf, vf, lf_str_size = 12, buf_size = 256; + struct rvu_block block; + u16 pcifunc; + char *buf; + + buf = kzalloc(buf_size, GFP_KERNEL); + if (!buf) + return -ENOMEM; + + for (pf = 0; pf < rvu->hw->total_pfs; pf++) { + for (vf = 0; vf <= rvu->hw->total_vfs; vf++) { + pcifunc = pf << 10 | vf; + if (!pcifunc) + continue; + + for (index = 0; index < BLK_COUNT; index++) { + block = rvu->hw->block[index]; + if (!strlen(block.name)) + continue; + + get_lf_str_list(block, pcifunc, buf); + if (lf_str_size <= strlen(buf)) + lf_str_size = strlen(buf) + 1; + } + } + } + + kfree(buf); + return lf_str_size; +} + +/* Dumps current provisioning status of all RVU block LFs */ +static ssize_t rvu_dbg_rsrc_attach_status(struct file *filp, + char __user *buffer, + size_t count, loff_t *ppos) +{ + int index, off = 0, flag = 0, len = 0, i = 0; + struct rvu *rvu = filp->private_data; + int bytes_not_copied = 0; + struct rvu_block block; + int pf, vf, pcifunc; + int buf_size = 2048; + int lf_str_size; + char *lfs; + char *buf; + + /* don't allow partial reads */ + if (*ppos != 0) + return 0; + + buf = kzalloc(buf_size, GFP_KERNEL); + if (!buf) + return -ENOMEM; + + /* Get the maximum width of a column */ + lf_str_size = get_max_column_width(rvu); + + lfs = kzalloc(lf_str_size, GFP_KERNEL); + if (!lfs) { + kfree(buf); + return -ENOMEM; + } + off += scnprintf(&buf[off], buf_size - 1 - off, "%-*s", lf_str_size, + "pcifunc"); + for (index = 0; index < BLK_COUNT; index++) + if (strlen(rvu->hw->block[index].name)) { + off += scnprintf(&buf[off], buf_size - 1 - off, + "%-*s", lf_str_size, + rvu->hw->block[index].name); + } + + off += scnprintf(&buf[off], buf_size - 1 - off, "\n"); + bytes_not_copied = copy_to_user(buffer + (i * off), buf, off); + if (bytes_not_copied) + goto out; + + i++; + *ppos += off; + for (pf = 0; pf < rvu->hw->total_pfs; pf++) { + for (vf = 0; vf <= rvu->hw->total_vfs; vf++) { + off = 0; + flag = 0; + pcifunc = pf << 10 | vf; + if (!pcifunc) + continue; + + if (vf) { + sprintf(lfs, "PF%d:VF%d", pf, vf - 1); + off = scnprintf(&buf[off], + buf_size - 1 - off, + "%-*s", lf_str_size, lfs); + } else { + sprintf(lfs, "PF%d", pf); + off = scnprintf(&buf[off], + buf_size - 1 - off, + "%-*s", lf_str_size, lfs); + } + + for (index = 0; index < BLK_COUNT; index++) { + block = rvu->hw->block[index]; + if (!strlen(block.name)) + continue; + len = 0; + lfs[len] = '\0'; + get_lf_str_list(block, pcifunc, lfs); + if (strlen(lfs)) + flag = 1; + + off += scnprintf(&buf[off], buf_size - 1 - off, + "%-*s", lf_str_size, lfs); + } + if (flag) { + off += scnprintf(&buf[off], + buf_size - 1 - off, "\n"); + bytes_not_copied = copy_to_user(buffer + + (i * off), + buf, off); + if (bytes_not_copied) + goto out; + + i++; + *ppos += off; + } + } + } + +out: + kfree(lfs); + kfree(buf); + if (bytes_not_copied) + return -EFAULT; + + return *ppos; +} + +RVU_DEBUG_FOPS(rsrc_status, rsrc_attach_status, NULL); + +static int rvu_dbg_rvu_pf_cgx_map_display(struct seq_file *filp, void *unused) +{ + struct rvu *rvu = filp->private; + struct pci_dev *pdev = NULL; + struct mac_ops *mac_ops; + char cgx[10], lmac[10]; + struct rvu_pfvf *pfvf; + int pf, domain, blkid; + u8 cgx_id, lmac_id; + u16 pcifunc; + + domain = 2; + mac_ops = get_mac_ops(rvu_first_cgx_pdata(rvu)); + /* There can be no CGX devices at all */ + if (!mac_ops) + return 0; + seq_printf(filp, "PCI dev\t\tRVU PF Func\tNIX block\t%s\tLMAC\n", + mac_ops->name); + for (pf = 0; pf < rvu->hw->total_pfs; pf++) { + if (!is_pf_cgxmapped(rvu, pf)) + continue; + + pdev = pci_get_domain_bus_and_slot(domain, pf + 1, 0); + if (!pdev) + continue; + + cgx[0] = 0; + lmac[0] = 0; + pcifunc = pf << 10; + pfvf = rvu_get_pfvf(rvu, pcifunc); + + if (pfvf->nix_blkaddr == BLKADDR_NIX0) + blkid = 0; + else + blkid = 1; + + rvu_get_cgx_lmac_id(rvu->pf2cgxlmac_map[pf], &cgx_id, + &lmac_id); + sprintf(cgx, "%s%d", mac_ops->name, cgx_id); + sprintf(lmac, "LMAC%d", lmac_id); + seq_printf(filp, "%s\t0x%x\t\tNIX%d\t\t%s\t%s\n", + dev_name(&pdev->dev), pcifunc, blkid, cgx, lmac); + + pci_dev_put(pdev); + } + return 0; +} + +RVU_DEBUG_SEQ_FOPS(rvu_pf_cgx_map, rvu_pf_cgx_map_display, NULL); + +static bool rvu_dbg_is_valid_lf(struct rvu *rvu, int blkaddr, int lf, + u16 *pcifunc) +{ + struct rvu_block *block; + struct rvu_hwinfo *hw; + + hw = rvu->hw; + block = &hw->block[blkaddr]; + + if (lf < 0 || lf >= block->lf.max) { + dev_warn(rvu->dev, "Invalid LF: valid range: 0-%d\n", + block->lf.max - 1); + return false; + } + + *pcifunc = block->fn_map[lf]; + if (!*pcifunc) { + dev_warn(rvu->dev, + "This LF is not attached to any RVU PFFUNC\n"); + return false; + } + return true; +} + +static void print_npa_qsize(struct seq_file *m, struct rvu_pfvf *pfvf) +{ + char *buf; + + buf = kmalloc(PAGE_SIZE, GFP_KERNEL); + if (!buf) + return; + + if (!pfvf->aura_ctx) { + seq_puts(m, "Aura context is not initialized\n"); + } else { + bitmap_print_to_pagebuf(false, buf, pfvf->aura_bmap, + pfvf->aura_ctx->qsize); + seq_printf(m, "Aura count : %d\n", pfvf->aura_ctx->qsize); + seq_printf(m, "Aura context ena/dis bitmap : %s\n", buf); + } + + if (!pfvf->pool_ctx) { + seq_puts(m, "Pool context is not initialized\n"); + } else { + bitmap_print_to_pagebuf(false, buf, pfvf->pool_bmap, + pfvf->pool_ctx->qsize); + seq_printf(m, "Pool count : %d\n", pfvf->pool_ctx->qsize); + seq_printf(m, "Pool context ena/dis bitmap : %s\n", buf); + } + kfree(buf); +} + +/* The 'qsize' entry dumps current Aura/Pool context Qsize + * and each context's current enable/disable status in a bitmap. + */ +static int rvu_dbg_qsize_display(struct seq_file *filp, void *unsused, + int blktype) +{ + void (*print_qsize)(struct seq_file *filp, + struct rvu_pfvf *pfvf) = NULL; + struct dentry *current_dir; + struct rvu_pfvf *pfvf; + struct rvu *rvu; + int qsize_id; + u16 pcifunc; + int blkaddr; + + rvu = filp->private; + switch (blktype) { + case BLKTYPE_NPA: + qsize_id = rvu->rvu_dbg.npa_qsize_id; + print_qsize = print_npa_qsize; + break; + + case BLKTYPE_NIX: + qsize_id = rvu->rvu_dbg.nix_qsize_id; + print_qsize = print_nix_qsize; + break; + + default: + return -EINVAL; + } + + if (blktype == BLKTYPE_NPA) { + blkaddr = BLKADDR_NPA; + } else { + current_dir = filp->file->f_path.dentry->d_parent; + blkaddr = (!strcmp(current_dir->d_name.name, "nix1") ? + BLKADDR_NIX1 : BLKADDR_NIX0); + } + + if (!rvu_dbg_is_valid_lf(rvu, blkaddr, qsize_id, &pcifunc)) + return -EINVAL; + + pfvf = rvu_get_pfvf(rvu, pcifunc); + print_qsize(filp, pfvf); + + return 0; +} + +static ssize_t rvu_dbg_qsize_write(struct file *filp, + const char __user *buffer, size_t count, + loff_t *ppos, int blktype) +{ + char *blk_string = (blktype == BLKTYPE_NPA) ? "npa" : "nix"; + struct seq_file *seqfile = filp->private_data; + char *cmd_buf, *cmd_buf_tmp, *subtoken; + struct rvu *rvu = seqfile->private; + struct dentry *current_dir; + int blkaddr; + u16 pcifunc; + int ret, lf; + + cmd_buf = memdup_user(buffer, count + 1); + if (IS_ERR(cmd_buf)) + return -ENOMEM; + + cmd_buf[count] = '\0'; + + cmd_buf_tmp = strchr(cmd_buf, '\n'); + if (cmd_buf_tmp) { + *cmd_buf_tmp = '\0'; + count = cmd_buf_tmp - cmd_buf + 1; + } + + cmd_buf_tmp = cmd_buf; + subtoken = strsep(&cmd_buf, " "); + ret = subtoken ? kstrtoint(subtoken, 10, &lf) : -EINVAL; + if (cmd_buf) + ret = -EINVAL; + + if (ret < 0 || !strncmp(subtoken, "help", 4)) { + dev_info(rvu->dev, "Use echo <%s-lf > qsize\n", blk_string); + goto qsize_write_done; + } + + if (blktype == BLKTYPE_NPA) { + blkaddr = BLKADDR_NPA; + } else { + current_dir = filp->f_path.dentry->d_parent; + blkaddr = (!strcmp(current_dir->d_name.name, "nix1") ? + BLKADDR_NIX1 : BLKADDR_NIX0); + } + + if (!rvu_dbg_is_valid_lf(rvu, blkaddr, lf, &pcifunc)) { + ret = -EINVAL; + goto qsize_write_done; + } + if (blktype == BLKTYPE_NPA) + rvu->rvu_dbg.npa_qsize_id = lf; + else + rvu->rvu_dbg.nix_qsize_id = lf; + +qsize_write_done: + kfree(cmd_buf_tmp); + return ret ? ret : count; +} + +static ssize_t rvu_dbg_npa_qsize_write(struct file *filp, + const char __user *buffer, + size_t count, loff_t *ppos) +{ + return rvu_dbg_qsize_write(filp, buffer, count, ppos, + BLKTYPE_NPA); +} + +static int rvu_dbg_npa_qsize_display(struct seq_file *filp, void *unused) +{ + return rvu_dbg_qsize_display(filp, unused, BLKTYPE_NPA); +} + +RVU_DEBUG_SEQ_FOPS(npa_qsize, npa_qsize_display, npa_qsize_write); + +/* Dumps given NPA Aura's context */ +static void print_npa_aura_ctx(struct seq_file *m, struct npa_aq_enq_rsp *rsp) +{ + struct npa_aura_s *aura = &rsp->aura; + struct rvu *rvu = m->private; + + seq_printf(m, "W0: Pool addr\t\t%llx\n", aura->pool_addr); + + seq_printf(m, "W1: ena\t\t\t%d\nW1: pool caching\t%d\n", + aura->ena, aura->pool_caching); + seq_printf(m, "W1: pool way mask\t%d\nW1: avg con\t\t%d\n", + aura->pool_way_mask, aura->avg_con); + seq_printf(m, "W1: pool drop ena\t%d\nW1: aura drop ena\t%d\n", + aura->pool_drop_ena, aura->aura_drop_ena); + seq_printf(m, "W1: bp_ena\t\t%d\nW1: aura drop\t\t%d\n", + aura->bp_ena, aura->aura_drop); + seq_printf(m, "W1: aura shift\t\t%d\nW1: avg_level\t\t%d\n", + aura->shift, aura->avg_level); + + seq_printf(m, "W2: count\t\t%llu\nW2: nix0_bpid\t\t%d\nW2: nix1_bpid\t\t%d\n", + (u64)aura->count, aura->nix0_bpid, aura->nix1_bpid); + + seq_printf(m, "W3: limit\t\t%llu\nW3: bp\t\t\t%d\nW3: fc_ena\t\t%d\n", + (u64)aura->limit, aura->bp, aura->fc_ena); + + if (!is_rvu_otx2(rvu)) + seq_printf(m, "W3: fc_be\t\t%d\n", aura->fc_be); + seq_printf(m, "W3: fc_up_crossing\t%d\nW3: fc_stype\t\t%d\n", + aura->fc_up_crossing, aura->fc_stype); + seq_printf(m, "W3: fc_hyst_bits\t%d\n", aura->fc_hyst_bits); + + seq_printf(m, "W4: fc_addr\t\t%llx\n", aura->fc_addr); + + seq_printf(m, "W5: pool_drop\t\t%d\nW5: update_time\t\t%d\n", + aura->pool_drop, aura->update_time); + seq_printf(m, "W5: err_int \t\t%d\nW5: err_int_ena\t\t%d\n", + aura->err_int, aura->err_int_ena); + seq_printf(m, "W5: thresh_int\t\t%d\nW5: thresh_int_ena \t%d\n", + aura->thresh_int, aura->thresh_int_ena); + seq_printf(m, "W5: thresh_up\t\t%d\nW5: thresh_qint_idx\t%d\n", + aura->thresh_up, aura->thresh_qint_idx); + seq_printf(m, "W5: err_qint_idx \t%d\n", aura->err_qint_idx); + + seq_printf(m, "W6: thresh\t\t%llu\n", (u64)aura->thresh); + if (!is_rvu_otx2(rvu)) + seq_printf(m, "W6: fc_msh_dst\t\t%d\n", aura->fc_msh_dst); +} + +/* Dumps given NPA Pool's context */ +static void print_npa_pool_ctx(struct seq_file *m, struct npa_aq_enq_rsp *rsp) +{ + struct npa_pool_s *pool = &rsp->pool; + struct rvu *rvu = m->private; + + seq_printf(m, "W0: Stack base\t\t%llx\n", pool->stack_base); + + seq_printf(m, "W1: ena \t\t%d\nW1: nat_align \t\t%d\n", + pool->ena, pool->nat_align); + seq_printf(m, "W1: stack_caching\t%d\nW1: stack_way_mask\t%d\n", + pool->stack_caching, pool->stack_way_mask); + seq_printf(m, "W1: buf_offset\t\t%d\nW1: buf_size\t\t%d\n", + pool->buf_offset, pool->buf_size); + + seq_printf(m, "W2: stack_max_pages \t%d\nW2: stack_pages\t\t%d\n", + pool->stack_max_pages, pool->stack_pages); + + seq_printf(m, "W3: op_pc \t\t%llu\n", (u64)pool->op_pc); + + seq_printf(m, "W4: stack_offset\t%d\nW4: shift\t\t%d\nW4: avg_level\t\t%d\n", + pool->stack_offset, pool->shift, pool->avg_level); + seq_printf(m, "W4: avg_con \t\t%d\nW4: fc_ena\t\t%d\nW4: fc_stype\t\t%d\n", + pool->avg_con, pool->fc_ena, pool->fc_stype); + seq_printf(m, "W4: fc_hyst_bits\t%d\nW4: fc_up_crossing\t%d\n", + pool->fc_hyst_bits, pool->fc_up_crossing); + if (!is_rvu_otx2(rvu)) + seq_printf(m, "W4: fc_be\t\t%d\n", pool->fc_be); + seq_printf(m, "W4: update_time\t\t%d\n", pool->update_time); + + seq_printf(m, "W5: fc_addr\t\t%llx\n", pool->fc_addr); + + seq_printf(m, "W6: ptr_start\t\t%llx\n", pool->ptr_start); + + seq_printf(m, "W7: ptr_end\t\t%llx\n", pool->ptr_end); + + seq_printf(m, "W8: err_int\t\t%d\nW8: err_int_ena\t\t%d\n", + pool->err_int, pool->err_int_ena); + seq_printf(m, "W8: thresh_int\t\t%d\n", pool->thresh_int); + seq_printf(m, "W8: thresh_int_ena\t%d\nW8: thresh_up\t\t%d\n", + pool->thresh_int_ena, pool->thresh_up); + seq_printf(m, "W8: thresh_qint_idx\t%d\nW8: err_qint_idx\t%d\n", + pool->thresh_qint_idx, pool->err_qint_idx); + if (!is_rvu_otx2(rvu)) + seq_printf(m, "W8: fc_msh_dst\t\t%d\n", pool->fc_msh_dst); +} + +/* Reads aura/pool's ctx from admin queue */ +static int rvu_dbg_npa_ctx_display(struct seq_file *m, void *unused, int ctype) +{ + void (*print_npa_ctx)(struct seq_file *m, struct npa_aq_enq_rsp *rsp); + struct npa_aq_enq_req aq_req; + struct npa_aq_enq_rsp rsp; + struct rvu_pfvf *pfvf; + int aura, rc, max_id; + int npalf, id, all; + struct rvu *rvu; + u16 pcifunc; + + rvu = m->private; + + switch (ctype) { + case NPA_AQ_CTYPE_AURA: + npalf = rvu->rvu_dbg.npa_aura_ctx.lf; + id = rvu->rvu_dbg.npa_aura_ctx.id; + all = rvu->rvu_dbg.npa_aura_ctx.all; + break; + + case NPA_AQ_CTYPE_POOL: + npalf = rvu->rvu_dbg.npa_pool_ctx.lf; + id = rvu->rvu_dbg.npa_pool_ctx.id; + all = rvu->rvu_dbg.npa_pool_ctx.all; + break; + default: + return -EINVAL; + } + + if (!rvu_dbg_is_valid_lf(rvu, BLKADDR_NPA, npalf, &pcifunc)) + return -EINVAL; + + pfvf = rvu_get_pfvf(rvu, pcifunc); + if (ctype == NPA_AQ_CTYPE_AURA && !pfvf->aura_ctx) { + seq_puts(m, "Aura context is not initialized\n"); + return -EINVAL; + } else if (ctype == NPA_AQ_CTYPE_POOL && !pfvf->pool_ctx) { + seq_puts(m, "Pool context is not initialized\n"); + return -EINVAL; + } + + memset(&aq_req, 0, sizeof(struct npa_aq_enq_req)); + aq_req.hdr.pcifunc = pcifunc; + aq_req.ctype = ctype; + aq_req.op = NPA_AQ_INSTOP_READ; + if (ctype == NPA_AQ_CTYPE_AURA) { + max_id = pfvf->aura_ctx->qsize; + print_npa_ctx = print_npa_aura_ctx; + } else { + max_id = pfvf->pool_ctx->qsize; + print_npa_ctx = print_npa_pool_ctx; + } + + if (id < 0 || id >= max_id) { + seq_printf(m, "Invalid %s, valid range is 0-%d\n", + (ctype == NPA_AQ_CTYPE_AURA) ? "aura" : "pool", + max_id - 1); + return -EINVAL; + } + + if (all) + id = 0; + else + max_id = id + 1; + + for (aura = id; aura < max_id; aura++) { + aq_req.aura_id = aura; + + /* Skip if queue is uninitialized */ + if (ctype == NPA_AQ_CTYPE_POOL && !test_bit(aura, pfvf->pool_bmap)) + continue; + + seq_printf(m, "======%s : %d=======\n", + (ctype == NPA_AQ_CTYPE_AURA) ? "AURA" : "POOL", + aq_req.aura_id); + rc = rvu_npa_aq_enq_inst(rvu, &aq_req, &rsp); + if (rc) { + seq_puts(m, "Failed to read context\n"); + return -EINVAL; + } + print_npa_ctx(m, &rsp); + } + return 0; +} + +static int write_npa_ctx(struct rvu *rvu, bool all, + int npalf, int id, int ctype) +{ + struct rvu_pfvf *pfvf; + int max_id = 0; + u16 pcifunc; + + if (!rvu_dbg_is_valid_lf(rvu, BLKADDR_NPA, npalf, &pcifunc)) + return -EINVAL; + + pfvf = rvu_get_pfvf(rvu, pcifunc); + + if (ctype == NPA_AQ_CTYPE_AURA) { + if (!pfvf->aura_ctx) { + dev_warn(rvu->dev, "Aura context is not initialized\n"); + return -EINVAL; + } + max_id = pfvf->aura_ctx->qsize; + } else if (ctype == NPA_AQ_CTYPE_POOL) { + if (!pfvf->pool_ctx) { + dev_warn(rvu->dev, "Pool context is not initialized\n"); + return -EINVAL; + } + max_id = pfvf->pool_ctx->qsize; + } + + if (id < 0 || id >= max_id) { + dev_warn(rvu->dev, "Invalid %s, valid range is 0-%d\n", + (ctype == NPA_AQ_CTYPE_AURA) ? "aura" : "pool", + max_id - 1); + return -EINVAL; + } + + switch (ctype) { + case NPA_AQ_CTYPE_AURA: + rvu->rvu_dbg.npa_aura_ctx.lf = npalf; + rvu->rvu_dbg.npa_aura_ctx.id = id; + rvu->rvu_dbg.npa_aura_ctx.all = all; + break; + + case NPA_AQ_CTYPE_POOL: + rvu->rvu_dbg.npa_pool_ctx.lf = npalf; + rvu->rvu_dbg.npa_pool_ctx.id = id; + rvu->rvu_dbg.npa_pool_ctx.all = all; + break; + default: + return -EINVAL; + } + return 0; +} + +static int parse_cmd_buffer_ctx(char *cmd_buf, size_t *count, + const char __user *buffer, int *npalf, + int *id, bool *all) +{ + int bytes_not_copied; + char *cmd_buf_tmp; + char *subtoken; + int ret; + + bytes_not_copied = copy_from_user(cmd_buf, buffer, *count); + if (bytes_not_copied) + return -EFAULT; + + cmd_buf[*count] = '\0'; + cmd_buf_tmp = strchr(cmd_buf, '\n'); + + if (cmd_buf_tmp) { + *cmd_buf_tmp = '\0'; + *count = cmd_buf_tmp - cmd_buf + 1; + } + + subtoken = strsep(&cmd_buf, " "); + ret = subtoken ? kstrtoint(subtoken, 10, npalf) : -EINVAL; + if (ret < 0) + return ret; + subtoken = strsep(&cmd_buf, " "); + if (subtoken && strcmp(subtoken, "all") == 0) { + *all = true; + } else { + ret = subtoken ? kstrtoint(subtoken, 10, id) : -EINVAL; + if (ret < 0) + return ret; + } + if (cmd_buf) + return -EINVAL; + return ret; +} + +static ssize_t rvu_dbg_npa_ctx_write(struct file *filp, + const char __user *buffer, + size_t count, loff_t *ppos, int ctype) +{ + char *cmd_buf, *ctype_string = (ctype == NPA_AQ_CTYPE_AURA) ? + "aura" : "pool"; + struct seq_file *seqfp = filp->private_data; + struct rvu *rvu = seqfp->private; + int npalf, id = 0, ret; + bool all = false; + + if ((*ppos != 0) || !count) + return -EINVAL; + + cmd_buf = kzalloc(count + 1, GFP_KERNEL); + if (!cmd_buf) + return count; + ret = parse_cmd_buffer_ctx(cmd_buf, &count, buffer, + &npalf, &id, &all); + if (ret < 0) { + dev_info(rvu->dev, + "Usage: echo <npalf> [%s number/all] > %s_ctx\n", + ctype_string, ctype_string); + goto done; + } else { + ret = write_npa_ctx(rvu, all, npalf, id, ctype); + } +done: + kfree(cmd_buf); + return ret ? ret : count; +} + +static ssize_t rvu_dbg_npa_aura_ctx_write(struct file *filp, + const char __user *buffer, + size_t count, loff_t *ppos) +{ + return rvu_dbg_npa_ctx_write(filp, buffer, count, ppos, + NPA_AQ_CTYPE_AURA); +} + +static int rvu_dbg_npa_aura_ctx_display(struct seq_file *filp, void *unused) +{ + return rvu_dbg_npa_ctx_display(filp, unused, NPA_AQ_CTYPE_AURA); +} + +RVU_DEBUG_SEQ_FOPS(npa_aura_ctx, npa_aura_ctx_display, npa_aura_ctx_write); + +static ssize_t rvu_dbg_npa_pool_ctx_write(struct file *filp, + const char __user *buffer, + size_t count, loff_t *ppos) +{ + return rvu_dbg_npa_ctx_write(filp, buffer, count, ppos, + NPA_AQ_CTYPE_POOL); +} + +static int rvu_dbg_npa_pool_ctx_display(struct seq_file *filp, void *unused) +{ + return rvu_dbg_npa_ctx_display(filp, unused, NPA_AQ_CTYPE_POOL); +} + +RVU_DEBUG_SEQ_FOPS(npa_pool_ctx, npa_pool_ctx_display, npa_pool_ctx_write); + +static void ndc_cache_stats(struct seq_file *s, int blk_addr, + int ctype, int transaction) +{ + u64 req, out_req, lat, cant_alloc; + struct nix_hw *nix_hw; + struct rvu *rvu; + int port; + + if (blk_addr == BLKADDR_NDC_NPA0) { + rvu = s->private; + } else { + nix_hw = s->private; + rvu = nix_hw->rvu; + } + + for (port = 0; port < NDC_MAX_PORT; port++) { + req = rvu_read64(rvu, blk_addr, NDC_AF_PORTX_RTX_RWX_REQ_PC + (port, ctype, transaction)); + lat = rvu_read64(rvu, blk_addr, NDC_AF_PORTX_RTX_RWX_LAT_PC + (port, ctype, transaction)); + out_req = rvu_read64(rvu, blk_addr, + NDC_AF_PORTX_RTX_RWX_OSTDN_PC + (port, ctype, transaction)); + cant_alloc = rvu_read64(rvu, blk_addr, + NDC_AF_PORTX_RTX_CANT_ALLOC_PC + (port, transaction)); + seq_printf(s, "\nPort:%d\n", port); + seq_printf(s, "\tTotal Requests:\t\t%lld\n", req); + seq_printf(s, "\tTotal Time Taken:\t%lld cycles\n", lat); + seq_printf(s, "\tAvg Latency:\t\t%lld cycles\n", lat / req); + seq_printf(s, "\tOutstanding Requests:\t%lld\n", out_req); + seq_printf(s, "\tCant Alloc Requests:\t%lld\n", cant_alloc); + } +} + +static int ndc_blk_cache_stats(struct seq_file *s, int idx, int blk_addr) +{ + seq_puts(s, "\n***** CACHE mode read stats *****\n"); + ndc_cache_stats(s, blk_addr, CACHING, NDC_READ_TRANS); + seq_puts(s, "\n***** CACHE mode write stats *****\n"); + ndc_cache_stats(s, blk_addr, CACHING, NDC_WRITE_TRANS); + seq_puts(s, "\n***** BY-PASS mode read stats *****\n"); + ndc_cache_stats(s, blk_addr, BYPASS, NDC_READ_TRANS); + seq_puts(s, "\n***** BY-PASS mode write stats *****\n"); + ndc_cache_stats(s, blk_addr, BYPASS, NDC_WRITE_TRANS); + return 0; +} + +static int rvu_dbg_npa_ndc_cache_display(struct seq_file *filp, void *unused) +{ + return ndc_blk_cache_stats(filp, NPA0_U, BLKADDR_NDC_NPA0); +} + +RVU_DEBUG_SEQ_FOPS(npa_ndc_cache, npa_ndc_cache_display, NULL); + +static int ndc_blk_hits_miss_stats(struct seq_file *s, int idx, int blk_addr) +{ + struct nix_hw *nix_hw; + struct rvu *rvu; + int bank, max_bank; + u64 ndc_af_const; + + if (blk_addr == BLKADDR_NDC_NPA0) { + rvu = s->private; + } else { + nix_hw = s->private; + rvu = nix_hw->rvu; + } + + ndc_af_const = rvu_read64(rvu, blk_addr, NDC_AF_CONST); + max_bank = FIELD_GET(NDC_AF_BANK_MASK, ndc_af_const); + for (bank = 0; bank < max_bank; bank++) { + seq_printf(s, "BANK:%d\n", bank); + seq_printf(s, "\tHits:\t%lld\n", + (u64)rvu_read64(rvu, blk_addr, + NDC_AF_BANKX_HIT_PC(bank))); + seq_printf(s, "\tMiss:\t%lld\n", + (u64)rvu_read64(rvu, blk_addr, + NDC_AF_BANKX_MISS_PC(bank))); + } + return 0; +} + +static int rvu_dbg_nix_ndc_rx_cache_display(struct seq_file *filp, void *unused) +{ + struct nix_hw *nix_hw = filp->private; + int blkaddr = 0; + int ndc_idx = 0; + + blkaddr = (nix_hw->blkaddr == BLKADDR_NIX1 ? + BLKADDR_NDC_NIX1_RX : BLKADDR_NDC_NIX0_RX); + ndc_idx = (nix_hw->blkaddr == BLKADDR_NIX1 ? NIX1_RX : NIX0_RX); + + return ndc_blk_cache_stats(filp, ndc_idx, blkaddr); +} + +RVU_DEBUG_SEQ_FOPS(nix_ndc_rx_cache, nix_ndc_rx_cache_display, NULL); + +static int rvu_dbg_nix_ndc_tx_cache_display(struct seq_file *filp, void *unused) +{ + struct nix_hw *nix_hw = filp->private; + int blkaddr = 0; + int ndc_idx = 0; + + blkaddr = (nix_hw->blkaddr == BLKADDR_NIX1 ? + BLKADDR_NDC_NIX1_TX : BLKADDR_NDC_NIX0_TX); + ndc_idx = (nix_hw->blkaddr == BLKADDR_NIX1 ? NIX1_TX : NIX0_TX); + + return ndc_blk_cache_stats(filp, ndc_idx, blkaddr); +} + +RVU_DEBUG_SEQ_FOPS(nix_ndc_tx_cache, nix_ndc_tx_cache_display, NULL); + +static int rvu_dbg_npa_ndc_hits_miss_display(struct seq_file *filp, + void *unused) +{ + return ndc_blk_hits_miss_stats(filp, NPA0_U, BLKADDR_NDC_NPA0); +} + +RVU_DEBUG_SEQ_FOPS(npa_ndc_hits_miss, npa_ndc_hits_miss_display, NULL); + +static int rvu_dbg_nix_ndc_rx_hits_miss_display(struct seq_file *filp, + void *unused) +{ + struct nix_hw *nix_hw = filp->private; + int ndc_idx = NPA0_U; + int blkaddr = 0; + + blkaddr = (nix_hw->blkaddr == BLKADDR_NIX1 ? + BLKADDR_NDC_NIX1_RX : BLKADDR_NDC_NIX0_RX); + + return ndc_blk_hits_miss_stats(filp, ndc_idx, blkaddr); +} + +RVU_DEBUG_SEQ_FOPS(nix_ndc_rx_hits_miss, nix_ndc_rx_hits_miss_display, NULL); + +static int rvu_dbg_nix_ndc_tx_hits_miss_display(struct seq_file *filp, + void *unused) +{ + struct nix_hw *nix_hw = filp->private; + int ndc_idx = NPA0_U; + int blkaddr = 0; + + blkaddr = (nix_hw->blkaddr == BLKADDR_NIX1 ? + BLKADDR_NDC_NIX1_TX : BLKADDR_NDC_NIX0_TX); + + return ndc_blk_hits_miss_stats(filp, ndc_idx, blkaddr); +} + +RVU_DEBUG_SEQ_FOPS(nix_ndc_tx_hits_miss, nix_ndc_tx_hits_miss_display, NULL); + +static void print_nix_cn10k_sq_ctx(struct seq_file *m, + struct nix_cn10k_sq_ctx_s *sq_ctx) +{ + seq_printf(m, "W0: ena \t\t\t%d\nW0: qint_idx \t\t\t%d\n", + sq_ctx->ena, sq_ctx->qint_idx); + seq_printf(m, "W0: substream \t\t\t0x%03x\nW0: sdp_mcast \t\t\t%d\n", + sq_ctx->substream, sq_ctx->sdp_mcast); + seq_printf(m, "W0: cq \t\t\t\t%d\nW0: sqe_way_mask \t\t%d\n\n", + sq_ctx->cq, sq_ctx->sqe_way_mask); + + seq_printf(m, "W1: smq \t\t\t%d\nW1: cq_ena \t\t\t%d\nW1: xoff\t\t\t%d\n", + sq_ctx->smq, sq_ctx->cq_ena, sq_ctx->xoff); + seq_printf(m, "W1: sso_ena \t\t\t%d\nW1: smq_rr_weight\t\t%d\n", + sq_ctx->sso_ena, sq_ctx->smq_rr_weight); + seq_printf(m, "W1: default_chan\t\t%d\nW1: sqb_count\t\t\t%d\n\n", + sq_ctx->default_chan, sq_ctx->sqb_count); + + seq_printf(m, "W2: smq_rr_count_lb \t\t%d\n", sq_ctx->smq_rr_count_lb); + seq_printf(m, "W2: smq_rr_count_ub \t\t%d\n", sq_ctx->smq_rr_count_ub); + seq_printf(m, "W2: sqb_aura \t\t\t%d\nW2: sq_int \t\t\t%d\n", + sq_ctx->sqb_aura, sq_ctx->sq_int); + seq_printf(m, "W2: sq_int_ena \t\t\t%d\nW2: sqe_stype \t\t\t%d\n", + sq_ctx->sq_int_ena, sq_ctx->sqe_stype); + + seq_printf(m, "W3: max_sqe_size\t\t%d\nW3: cq_limit\t\t\t%d\n", + sq_ctx->max_sqe_size, sq_ctx->cq_limit); + seq_printf(m, "W3: lmt_dis \t\t\t%d\nW3: mnq_dis \t\t\t%d\n", + sq_ctx->mnq_dis, sq_ctx->lmt_dis); + seq_printf(m, "W3: smq_next_sq\t\t\t%d\nW3: smq_lso_segnum\t\t%d\n", + sq_ctx->smq_next_sq, sq_ctx->smq_lso_segnum); + seq_printf(m, "W3: tail_offset \t\t%d\nW3: smenq_offset\t\t%d\n", + sq_ctx->tail_offset, sq_ctx->smenq_offset); + seq_printf(m, "W3: head_offset\t\t\t%d\nW3: smenq_next_sqb_vld\t\t%d\n\n", + sq_ctx->head_offset, sq_ctx->smenq_next_sqb_vld); + + seq_printf(m, "W3: smq_next_sq_vld\t\t%d\nW3: smq_pend\t\t\t%d\n", + sq_ctx->smq_next_sq_vld, sq_ctx->smq_pend); + seq_printf(m, "W4: next_sqb \t\t\t%llx\n\n", sq_ctx->next_sqb); + seq_printf(m, "W5: tail_sqb \t\t\t%llx\n\n", sq_ctx->tail_sqb); + seq_printf(m, "W6: smenq_sqb \t\t\t%llx\n\n", sq_ctx->smenq_sqb); + seq_printf(m, "W7: smenq_next_sqb \t\t%llx\n\n", + sq_ctx->smenq_next_sqb); + + seq_printf(m, "W8: head_sqb\t\t\t%llx\n\n", sq_ctx->head_sqb); + + seq_printf(m, "W9: vfi_lso_total\t\t%d\n", sq_ctx->vfi_lso_total); + seq_printf(m, "W9: vfi_lso_sizem1\t\t%d\nW9: vfi_lso_sb\t\t\t%d\n", + sq_ctx->vfi_lso_sizem1, sq_ctx->vfi_lso_sb); + seq_printf(m, "W9: vfi_lso_mps\t\t\t%d\nW9: vfi_lso_vlan0_ins_ena\t%d\n", + sq_ctx->vfi_lso_mps, sq_ctx->vfi_lso_vlan0_ins_ena); + seq_printf(m, "W9: vfi_lso_vlan1_ins_ena\t%d\nW9: vfi_lso_vld \t\t%d\n\n", + sq_ctx->vfi_lso_vld, sq_ctx->vfi_lso_vlan1_ins_ena); + + seq_printf(m, "W10: scm_lso_rem \t\t%llu\n\n", + (u64)sq_ctx->scm_lso_rem); + seq_printf(m, "W11: octs \t\t\t%llu\n\n", (u64)sq_ctx->octs); + seq_printf(m, "W12: pkts \t\t\t%llu\n\n", (u64)sq_ctx->pkts); + seq_printf(m, "W14: dropped_octs \t\t%llu\n\n", + (u64)sq_ctx->dropped_octs); + seq_printf(m, "W15: dropped_pkts \t\t%llu\n\n", + (u64)sq_ctx->dropped_pkts); +} + +/* Dumps given nix_sq's context */ +static void print_nix_sq_ctx(struct seq_file *m, struct nix_aq_enq_rsp *rsp) +{ + struct nix_sq_ctx_s *sq_ctx = &rsp->sq; + struct nix_hw *nix_hw = m->private; + struct rvu *rvu = nix_hw->rvu; + + if (!is_rvu_otx2(rvu)) { + print_nix_cn10k_sq_ctx(m, (struct nix_cn10k_sq_ctx_s *)sq_ctx); + return; + } + seq_printf(m, "W0: sqe_way_mask \t\t%d\nW0: cq \t\t\t\t%d\n", + sq_ctx->sqe_way_mask, sq_ctx->cq); + seq_printf(m, "W0: sdp_mcast \t\t\t%d\nW0: substream \t\t\t0x%03x\n", + sq_ctx->sdp_mcast, sq_ctx->substream); + seq_printf(m, "W0: qint_idx \t\t\t%d\nW0: ena \t\t\t%d\n\n", + sq_ctx->qint_idx, sq_ctx->ena); + + seq_printf(m, "W1: sqb_count \t\t\t%d\nW1: default_chan \t\t%d\n", + sq_ctx->sqb_count, sq_ctx->default_chan); + seq_printf(m, "W1: smq_rr_quantum \t\t%d\nW1: sso_ena \t\t\t%d\n", + sq_ctx->smq_rr_quantum, sq_ctx->sso_ena); + seq_printf(m, "W1: xoff \t\t\t%d\nW1: cq_ena \t\t\t%d\nW1: smq\t\t\t\t%d\n\n", + sq_ctx->xoff, sq_ctx->cq_ena, sq_ctx->smq); + + seq_printf(m, "W2: sqe_stype \t\t\t%d\nW2: sq_int_ena \t\t\t%d\n", + sq_ctx->sqe_stype, sq_ctx->sq_int_ena); + seq_printf(m, "W2: sq_int \t\t\t%d\nW2: sqb_aura \t\t\t%d\n", + sq_ctx->sq_int, sq_ctx->sqb_aura); + seq_printf(m, "W2: smq_rr_count \t\t%d\n\n", sq_ctx->smq_rr_count); + + seq_printf(m, "W3: smq_next_sq_vld\t\t%d\nW3: smq_pend\t\t\t%d\n", + sq_ctx->smq_next_sq_vld, sq_ctx->smq_pend); + seq_printf(m, "W3: smenq_next_sqb_vld \t\t%d\nW3: head_offset\t\t\t%d\n", + sq_ctx->smenq_next_sqb_vld, sq_ctx->head_offset); + seq_printf(m, "W3: smenq_offset\t\t%d\nW3: tail_offset\t\t\t%d\n", + sq_ctx->smenq_offset, sq_ctx->tail_offset); + seq_printf(m, "W3: smq_lso_segnum \t\t%d\nW3: smq_next_sq\t\t\t%d\n", + sq_ctx->smq_lso_segnum, sq_ctx->smq_next_sq); + seq_printf(m, "W3: mnq_dis \t\t\t%d\nW3: lmt_dis \t\t\t%d\n", + sq_ctx->mnq_dis, sq_ctx->lmt_dis); + seq_printf(m, "W3: cq_limit\t\t\t%d\nW3: max_sqe_size\t\t%d\n\n", + sq_ctx->cq_limit, sq_ctx->max_sqe_size); + + seq_printf(m, "W4: next_sqb \t\t\t%llx\n\n", sq_ctx->next_sqb); + seq_printf(m, "W5: tail_sqb \t\t\t%llx\n\n", sq_ctx->tail_sqb); + seq_printf(m, "W6: smenq_sqb \t\t\t%llx\n\n", sq_ctx->smenq_sqb); + seq_printf(m, "W7: smenq_next_sqb \t\t%llx\n\n", + sq_ctx->smenq_next_sqb); + + seq_printf(m, "W8: head_sqb\t\t\t%llx\n\n", sq_ctx->head_sqb); + + seq_printf(m, "W9: vfi_lso_vld\t\t\t%d\nW9: vfi_lso_vlan1_ins_ena\t%d\n", + sq_ctx->vfi_lso_vld, sq_ctx->vfi_lso_vlan1_ins_ena); + seq_printf(m, "W9: vfi_lso_vlan0_ins_ena\t%d\nW9: vfi_lso_mps\t\t\t%d\n", + sq_ctx->vfi_lso_vlan0_ins_ena, sq_ctx->vfi_lso_mps); + seq_printf(m, "W9: vfi_lso_sb\t\t\t%d\nW9: vfi_lso_sizem1\t\t%d\n", + sq_ctx->vfi_lso_sb, sq_ctx->vfi_lso_sizem1); + seq_printf(m, "W9: vfi_lso_total\t\t%d\n\n", sq_ctx->vfi_lso_total); + + seq_printf(m, "W10: scm_lso_rem \t\t%llu\n\n", + (u64)sq_ctx->scm_lso_rem); + seq_printf(m, "W11: octs \t\t\t%llu\n\n", (u64)sq_ctx->octs); + seq_printf(m, "W12: pkts \t\t\t%llu\n\n", (u64)sq_ctx->pkts); + seq_printf(m, "W14: dropped_octs \t\t%llu\n\n", + (u64)sq_ctx->dropped_octs); + seq_printf(m, "W15: dropped_pkts \t\t%llu\n\n", + (u64)sq_ctx->dropped_pkts); +} + +static void print_nix_cn10k_rq_ctx(struct seq_file *m, + struct nix_cn10k_rq_ctx_s *rq_ctx) +{ + seq_printf(m, "W0: ena \t\t\t%d\nW0: sso_ena \t\t\t%d\n", + rq_ctx->ena, rq_ctx->sso_ena); + seq_printf(m, "W0: ipsech_ena \t\t\t%d\nW0: ena_wqwd \t\t\t%d\n", + rq_ctx->ipsech_ena, rq_ctx->ena_wqwd); + seq_printf(m, "W0: cq \t\t\t\t%d\nW0: lenerr_dis \t\t\t%d\n", + rq_ctx->cq, rq_ctx->lenerr_dis); + seq_printf(m, "W0: csum_il4_dis \t\t%d\nW0: csum_ol4_dis \t\t%d\n", + rq_ctx->csum_il4_dis, rq_ctx->csum_ol4_dis); + seq_printf(m, "W0: len_il4_dis \t\t%d\nW0: len_il3_dis \t\t%d\n", + rq_ctx->len_il4_dis, rq_ctx->len_il3_dis); + seq_printf(m, "W0: len_ol4_dis \t\t%d\nW0: len_ol3_dis \t\t%d\n", + rq_ctx->len_ol4_dis, rq_ctx->len_ol3_dis); + seq_printf(m, "W0: wqe_aura \t\t\t%d\n\n", rq_ctx->wqe_aura); + + seq_printf(m, "W1: spb_aura \t\t\t%d\nW1: lpb_aura \t\t\t%d\n", + rq_ctx->spb_aura, rq_ctx->lpb_aura); + seq_printf(m, "W1: spb_aura \t\t\t%d\n", rq_ctx->spb_aura); + seq_printf(m, "W1: sso_grp \t\t\t%d\nW1: sso_tt \t\t\t%d\n", + rq_ctx->sso_grp, rq_ctx->sso_tt); + seq_printf(m, "W1: pb_caching \t\t\t%d\nW1: wqe_caching \t\t%d\n", + rq_ctx->pb_caching, rq_ctx->wqe_caching); + seq_printf(m, "W1: xqe_drop_ena \t\t%d\nW1: spb_drop_ena \t\t%d\n", + rq_ctx->xqe_drop_ena, rq_ctx->spb_drop_ena); + seq_printf(m, "W1: lpb_drop_ena \t\t%d\nW1: pb_stashing \t\t%d\n", + rq_ctx->lpb_drop_ena, rq_ctx->pb_stashing); + seq_printf(m, "W1: ipsecd_drop_ena \t\t%d\nW1: chi_ena \t\t\t%d\n\n", + rq_ctx->ipsecd_drop_ena, rq_ctx->chi_ena); + + seq_printf(m, "W2: band_prof_id \t\t%d\n", rq_ctx->band_prof_id); + seq_printf(m, "W2: policer_ena \t\t%d\n", rq_ctx->policer_ena); + seq_printf(m, "W2: spb_sizem1 \t\t\t%d\n", rq_ctx->spb_sizem1); + seq_printf(m, "W2: wqe_skip \t\t\t%d\nW2: sqb_ena \t\t\t%d\n", + rq_ctx->wqe_skip, rq_ctx->spb_ena); + seq_printf(m, "W2: lpb_size1 \t\t\t%d\nW2: first_skip \t\t\t%d\n", + rq_ctx->lpb_sizem1, rq_ctx->first_skip); + seq_printf(m, "W2: later_skip\t\t\t%d\nW2: xqe_imm_size\t\t%d\n", + rq_ctx->later_skip, rq_ctx->xqe_imm_size); + seq_printf(m, "W2: xqe_imm_copy \t\t%d\nW2: xqe_hdr_split \t\t%d\n\n", + rq_ctx->xqe_imm_copy, rq_ctx->xqe_hdr_split); + + seq_printf(m, "W3: xqe_drop \t\t\t%d\nW3: xqe_pass \t\t\t%d\n", + rq_ctx->xqe_drop, rq_ctx->xqe_pass); + seq_printf(m, "W3: wqe_pool_drop \t\t%d\nW3: wqe_pool_pass \t\t%d\n", + rq_ctx->wqe_pool_drop, rq_ctx->wqe_pool_pass); + seq_printf(m, "W3: spb_pool_drop \t\t%d\nW3: spb_pool_pass \t\t%d\n", + rq_ctx->spb_pool_drop, rq_ctx->spb_pool_pass); + seq_printf(m, "W3: spb_aura_drop \t\t%d\nW3: spb_aura_pass \t\t%d\n\n", + rq_ctx->spb_aura_pass, rq_ctx->spb_aura_drop); + + seq_printf(m, "W4: lpb_aura_drop \t\t%d\nW3: lpb_aura_pass \t\t%d\n", + rq_ctx->lpb_aura_pass, rq_ctx->lpb_aura_drop); + seq_printf(m, "W4: lpb_pool_drop \t\t%d\nW3: lpb_pool_pass \t\t%d\n", + rq_ctx->lpb_pool_drop, rq_ctx->lpb_pool_pass); + seq_printf(m, "W4: rq_int \t\t\t%d\nW4: rq_int_ena\t\t\t%d\n", + rq_ctx->rq_int, rq_ctx->rq_int_ena); + seq_printf(m, "W4: qint_idx \t\t\t%d\n\n", rq_ctx->qint_idx); + + seq_printf(m, "W5: ltag \t\t\t%d\nW5: good_utag \t\t\t%d\n", + rq_ctx->ltag, rq_ctx->good_utag); + seq_printf(m, "W5: bad_utag \t\t\t%d\nW5: flow_tagw \t\t\t%d\n", + rq_ctx->bad_utag, rq_ctx->flow_tagw); + seq_printf(m, "W5: ipsec_vwqe \t\t\t%d\nW5: vwqe_ena \t\t\t%d\n", + rq_ctx->ipsec_vwqe, rq_ctx->vwqe_ena); + seq_printf(m, "W5: vwqe_wait \t\t\t%d\nW5: max_vsize_exp\t\t%d\n", + rq_ctx->vwqe_wait, rq_ctx->max_vsize_exp); + seq_printf(m, "W5: vwqe_skip \t\t\t%d\n\n", rq_ctx->vwqe_skip); + + seq_printf(m, "W6: octs \t\t\t%llu\n\n", (u64)rq_ctx->octs); + seq_printf(m, "W7: pkts \t\t\t%llu\n\n", (u64)rq_ctx->pkts); + seq_printf(m, "W8: drop_octs \t\t\t%llu\n\n", (u64)rq_ctx->drop_octs); + seq_printf(m, "W9: drop_pkts \t\t\t%llu\n\n", (u64)rq_ctx->drop_pkts); + seq_printf(m, "W10: re_pkts \t\t\t%llu\n", (u64)rq_ctx->re_pkts); +} + +/* Dumps given nix_rq's context */ +static void print_nix_rq_ctx(struct seq_file *m, struct nix_aq_enq_rsp *rsp) +{ + struct nix_rq_ctx_s *rq_ctx = &rsp->rq; + struct nix_hw *nix_hw = m->private; + struct rvu *rvu = nix_hw->rvu; + + if (!is_rvu_otx2(rvu)) { + print_nix_cn10k_rq_ctx(m, (struct nix_cn10k_rq_ctx_s *)rq_ctx); + return; + } + + seq_printf(m, "W0: wqe_aura \t\t\t%d\nW0: substream \t\t\t0x%03x\n", + rq_ctx->wqe_aura, rq_ctx->substream); + seq_printf(m, "W0: cq \t\t\t\t%d\nW0: ena_wqwd \t\t\t%d\n", + rq_ctx->cq, rq_ctx->ena_wqwd); + seq_printf(m, "W0: ipsech_ena \t\t\t%d\nW0: sso_ena \t\t\t%d\n", + rq_ctx->ipsech_ena, rq_ctx->sso_ena); + seq_printf(m, "W0: ena \t\t\t%d\n\n", rq_ctx->ena); + + seq_printf(m, "W1: lpb_drop_ena \t\t%d\nW1: spb_drop_ena \t\t%d\n", + rq_ctx->lpb_drop_ena, rq_ctx->spb_drop_ena); + seq_printf(m, "W1: xqe_drop_ena \t\t%d\nW1: wqe_caching \t\t%d\n", + rq_ctx->xqe_drop_ena, rq_ctx->wqe_caching); + seq_printf(m, "W1: pb_caching \t\t\t%d\nW1: sso_tt \t\t\t%d\n", + rq_ctx->pb_caching, rq_ctx->sso_tt); + seq_printf(m, "W1: sso_grp \t\t\t%d\nW1: lpb_aura \t\t\t%d\n", + rq_ctx->sso_grp, rq_ctx->lpb_aura); + seq_printf(m, "W1: spb_aura \t\t\t%d\n\n", rq_ctx->spb_aura); + + seq_printf(m, "W2: xqe_hdr_split \t\t%d\nW2: xqe_imm_copy \t\t%d\n", + rq_ctx->xqe_hdr_split, rq_ctx->xqe_imm_copy); + seq_printf(m, "W2: xqe_imm_size \t\t%d\nW2: later_skip \t\t\t%d\n", + rq_ctx->xqe_imm_size, rq_ctx->later_skip); + seq_printf(m, "W2: first_skip \t\t\t%d\nW2: lpb_sizem1 \t\t\t%d\n", + rq_ctx->first_skip, rq_ctx->lpb_sizem1); + seq_printf(m, "W2: spb_ena \t\t\t%d\nW2: wqe_skip \t\t\t%d\n", + rq_ctx->spb_ena, rq_ctx->wqe_skip); + seq_printf(m, "W2: spb_sizem1 \t\t\t%d\n\n", rq_ctx->spb_sizem1); + + seq_printf(m, "W3: spb_pool_pass \t\t%d\nW3: spb_pool_drop \t\t%d\n", + rq_ctx->spb_pool_pass, rq_ctx->spb_pool_drop); + seq_printf(m, "W3: spb_aura_pass \t\t%d\nW3: spb_aura_drop \t\t%d\n", + rq_ctx->spb_aura_pass, rq_ctx->spb_aura_drop); + seq_printf(m, "W3: wqe_pool_pass \t\t%d\nW3: wqe_pool_drop \t\t%d\n", + rq_ctx->wqe_pool_pass, rq_ctx->wqe_pool_drop); + seq_printf(m, "W3: xqe_pass \t\t\t%d\nW3: xqe_drop \t\t\t%d\n\n", + rq_ctx->xqe_pass, rq_ctx->xqe_drop); + + seq_printf(m, "W4: qint_idx \t\t\t%d\nW4: rq_int_ena \t\t\t%d\n", + rq_ctx->qint_idx, rq_ctx->rq_int_ena); + seq_printf(m, "W4: rq_int \t\t\t%d\nW4: lpb_pool_pass \t\t%d\n", + rq_ctx->rq_int, rq_ctx->lpb_pool_pass); + seq_printf(m, "W4: lpb_pool_drop \t\t%d\nW4: lpb_aura_pass \t\t%d\n", + rq_ctx->lpb_pool_drop, rq_ctx->lpb_aura_pass); + seq_printf(m, "W4: lpb_aura_drop \t\t%d\n\n", rq_ctx->lpb_aura_drop); + + seq_printf(m, "W5: flow_tagw \t\t\t%d\nW5: bad_utag \t\t\t%d\n", + rq_ctx->flow_tagw, rq_ctx->bad_utag); + seq_printf(m, "W5: good_utag \t\t\t%d\nW5: ltag \t\t\t%d\n\n", + rq_ctx->good_utag, rq_ctx->ltag); + + seq_printf(m, "W6: octs \t\t\t%llu\n\n", (u64)rq_ctx->octs); + seq_printf(m, "W7: pkts \t\t\t%llu\n\n", (u64)rq_ctx->pkts); + seq_printf(m, "W8: drop_octs \t\t\t%llu\n\n", (u64)rq_ctx->drop_octs); + seq_printf(m, "W9: drop_pkts \t\t\t%llu\n\n", (u64)rq_ctx->drop_pkts); + seq_printf(m, "W10: re_pkts \t\t\t%llu\n", (u64)rq_ctx->re_pkts); +} + +/* Dumps given nix_cq's context */ +static void print_nix_cq_ctx(struct seq_file *m, struct nix_aq_enq_rsp *rsp) +{ + struct nix_cq_ctx_s *cq_ctx = &rsp->cq; + + seq_printf(m, "W0: base \t\t\t%llx\n\n", cq_ctx->base); + + seq_printf(m, "W1: wrptr \t\t\t%llx\n", (u64)cq_ctx->wrptr); + seq_printf(m, "W1: avg_con \t\t\t%d\nW1: cint_idx \t\t\t%d\n", + cq_ctx->avg_con, cq_ctx->cint_idx); + seq_printf(m, "W1: cq_err \t\t\t%d\nW1: qint_idx \t\t\t%d\n", + cq_ctx->cq_err, cq_ctx->qint_idx); + seq_printf(m, "W1: bpid \t\t\t%d\nW1: bp_ena \t\t\t%d\n\n", + cq_ctx->bpid, cq_ctx->bp_ena); + + seq_printf(m, "W2: update_time \t\t%d\nW2:avg_level \t\t\t%d\n", + cq_ctx->update_time, cq_ctx->avg_level); + seq_printf(m, "W2: head \t\t\t%d\nW2:tail \t\t\t%d\n\n", + cq_ctx->head, cq_ctx->tail); + + seq_printf(m, "W3: cq_err_int_ena \t\t%d\nW3:cq_err_int \t\t\t%d\n", + cq_ctx->cq_err_int_ena, cq_ctx->cq_err_int); + seq_printf(m, "W3: qsize \t\t\t%d\nW3:caching \t\t\t%d\n", + cq_ctx->qsize, cq_ctx->caching); + seq_printf(m, "W3: substream \t\t\t0x%03x\nW3: ena \t\t\t%d\n", + cq_ctx->substream, cq_ctx->ena); + seq_printf(m, "W3: drop_ena \t\t\t%d\nW3: drop \t\t\t%d\n", + cq_ctx->drop_ena, cq_ctx->drop); + seq_printf(m, "W3: bp \t\t\t\t%d\n\n", cq_ctx->bp); +} + +static int rvu_dbg_nix_queue_ctx_display(struct seq_file *filp, + void *unused, int ctype) +{ + void (*print_nix_ctx)(struct seq_file *filp, + struct nix_aq_enq_rsp *rsp) = NULL; + struct nix_hw *nix_hw = filp->private; + struct rvu *rvu = nix_hw->rvu; + struct nix_aq_enq_req aq_req; + struct nix_aq_enq_rsp rsp; + char *ctype_string = NULL; + int qidx, rc, max_id = 0; + struct rvu_pfvf *pfvf; + int nixlf, id, all; + u16 pcifunc; + + switch (ctype) { + case NIX_AQ_CTYPE_CQ: + nixlf = rvu->rvu_dbg.nix_cq_ctx.lf; + id = rvu->rvu_dbg.nix_cq_ctx.id; + all = rvu->rvu_dbg.nix_cq_ctx.all; + break; + + case NIX_AQ_CTYPE_SQ: + nixlf = rvu->rvu_dbg.nix_sq_ctx.lf; + id = rvu->rvu_dbg.nix_sq_ctx.id; + all = rvu->rvu_dbg.nix_sq_ctx.all; + break; + + case NIX_AQ_CTYPE_RQ: + nixlf = rvu->rvu_dbg.nix_rq_ctx.lf; + id = rvu->rvu_dbg.nix_rq_ctx.id; + all = rvu->rvu_dbg.nix_rq_ctx.all; + break; + + default: + return -EINVAL; + } + + if (!rvu_dbg_is_valid_lf(rvu, nix_hw->blkaddr, nixlf, &pcifunc)) + return -EINVAL; + + pfvf = rvu_get_pfvf(rvu, pcifunc); + if (ctype == NIX_AQ_CTYPE_SQ && !pfvf->sq_ctx) { + seq_puts(filp, "SQ context is not initialized\n"); + return -EINVAL; + } else if (ctype == NIX_AQ_CTYPE_RQ && !pfvf->rq_ctx) { + seq_puts(filp, "RQ context is not initialized\n"); + return -EINVAL; + } else if (ctype == NIX_AQ_CTYPE_CQ && !pfvf->cq_ctx) { + seq_puts(filp, "CQ context is not initialized\n"); + return -EINVAL; + } + + if (ctype == NIX_AQ_CTYPE_SQ) { + max_id = pfvf->sq_ctx->qsize; + ctype_string = "sq"; + print_nix_ctx = print_nix_sq_ctx; + } else if (ctype == NIX_AQ_CTYPE_RQ) { + max_id = pfvf->rq_ctx->qsize; + ctype_string = "rq"; + print_nix_ctx = print_nix_rq_ctx; + } else if (ctype == NIX_AQ_CTYPE_CQ) { + max_id = pfvf->cq_ctx->qsize; + ctype_string = "cq"; + print_nix_ctx = print_nix_cq_ctx; + } + + memset(&aq_req, 0, sizeof(struct nix_aq_enq_req)); + aq_req.hdr.pcifunc = pcifunc; + aq_req.ctype = ctype; + aq_req.op = NIX_AQ_INSTOP_READ; + if (all) + id = 0; + else + max_id = id + 1; + for (qidx = id; qidx < max_id; qidx++) { + aq_req.qidx = qidx; + seq_printf(filp, "=====%s_ctx for nixlf:%d and qidx:%d is=====\n", + ctype_string, nixlf, aq_req.qidx); + rc = rvu_mbox_handler_nix_aq_enq(rvu, &aq_req, &rsp); + if (rc) { + seq_puts(filp, "Failed to read the context\n"); + return -EINVAL; + } + print_nix_ctx(filp, &rsp); + } + return 0; +} + +static int write_nix_queue_ctx(struct rvu *rvu, bool all, int nixlf, + int id, int ctype, char *ctype_string, + struct seq_file *m) +{ + struct nix_hw *nix_hw = m->private; + struct rvu_pfvf *pfvf; + int max_id = 0; + u16 pcifunc; + + if (!rvu_dbg_is_valid_lf(rvu, nix_hw->blkaddr, nixlf, &pcifunc)) + return -EINVAL; + + pfvf = rvu_get_pfvf(rvu, pcifunc); + + if (ctype == NIX_AQ_CTYPE_SQ) { + if (!pfvf->sq_ctx) { + dev_warn(rvu->dev, "SQ context is not initialized\n"); + return -EINVAL; + } + max_id = pfvf->sq_ctx->qsize; + } else if (ctype == NIX_AQ_CTYPE_RQ) { + if (!pfvf->rq_ctx) { + dev_warn(rvu->dev, "RQ context is not initialized\n"); + return -EINVAL; + } + max_id = pfvf->rq_ctx->qsize; + } else if (ctype == NIX_AQ_CTYPE_CQ) { + if (!pfvf->cq_ctx) { + dev_warn(rvu->dev, "CQ context is not initialized\n"); + return -EINVAL; + } + max_id = pfvf->cq_ctx->qsize; + } + + if (id < 0 || id >= max_id) { + dev_warn(rvu->dev, "Invalid %s_ctx valid range 0-%d\n", + ctype_string, max_id - 1); + return -EINVAL; + } + switch (ctype) { + case NIX_AQ_CTYPE_CQ: + rvu->rvu_dbg.nix_cq_ctx.lf = nixlf; + rvu->rvu_dbg.nix_cq_ctx.id = id; + rvu->rvu_dbg.nix_cq_ctx.all = all; + break; + + case NIX_AQ_CTYPE_SQ: + rvu->rvu_dbg.nix_sq_ctx.lf = nixlf; + rvu->rvu_dbg.nix_sq_ctx.id = id; + rvu->rvu_dbg.nix_sq_ctx.all = all; + break; + + case NIX_AQ_CTYPE_RQ: + rvu->rvu_dbg.nix_rq_ctx.lf = nixlf; + rvu->rvu_dbg.nix_rq_ctx.id = id; + rvu->rvu_dbg.nix_rq_ctx.all = all; + break; + default: + return -EINVAL; + } + return 0; +} + +static ssize_t rvu_dbg_nix_queue_ctx_write(struct file *filp, + const char __user *buffer, + size_t count, loff_t *ppos, + int ctype) +{ + struct seq_file *m = filp->private_data; + struct nix_hw *nix_hw = m->private; + struct rvu *rvu = nix_hw->rvu; + char *cmd_buf, *ctype_string; + int nixlf, id = 0, ret; + bool all = false; + + if ((*ppos != 0) || !count) + return -EINVAL; + + switch (ctype) { + case NIX_AQ_CTYPE_SQ: + ctype_string = "sq"; + break; + case NIX_AQ_CTYPE_RQ: + ctype_string = "rq"; + break; + case NIX_AQ_CTYPE_CQ: + ctype_string = "cq"; + break; + default: + return -EINVAL; + } + + cmd_buf = kzalloc(count + 1, GFP_KERNEL); + + if (!cmd_buf) + return count; + + ret = parse_cmd_buffer_ctx(cmd_buf, &count, buffer, + &nixlf, &id, &all); + if (ret < 0) { + dev_info(rvu->dev, + "Usage: echo <nixlf> [%s number/all] > %s_ctx\n", + ctype_string, ctype_string); + goto done; + } else { + ret = write_nix_queue_ctx(rvu, all, nixlf, id, ctype, + ctype_string, m); + } +done: + kfree(cmd_buf); + return ret ? ret : count; +} + +static ssize_t rvu_dbg_nix_sq_ctx_write(struct file *filp, + const char __user *buffer, + size_t count, loff_t *ppos) +{ + return rvu_dbg_nix_queue_ctx_write(filp, buffer, count, ppos, + NIX_AQ_CTYPE_SQ); +} + +static int rvu_dbg_nix_sq_ctx_display(struct seq_file *filp, void *unused) +{ + return rvu_dbg_nix_queue_ctx_display(filp, unused, NIX_AQ_CTYPE_SQ); +} + +RVU_DEBUG_SEQ_FOPS(nix_sq_ctx, nix_sq_ctx_display, nix_sq_ctx_write); + +static ssize_t rvu_dbg_nix_rq_ctx_write(struct file *filp, + const char __user *buffer, + size_t count, loff_t *ppos) +{ + return rvu_dbg_nix_queue_ctx_write(filp, buffer, count, ppos, + NIX_AQ_CTYPE_RQ); +} + +static int rvu_dbg_nix_rq_ctx_display(struct seq_file *filp, void *unused) +{ + return rvu_dbg_nix_queue_ctx_display(filp, unused, NIX_AQ_CTYPE_RQ); +} + +RVU_DEBUG_SEQ_FOPS(nix_rq_ctx, nix_rq_ctx_display, nix_rq_ctx_write); + +static ssize_t rvu_dbg_nix_cq_ctx_write(struct file *filp, + const char __user *buffer, + size_t count, loff_t *ppos) +{ + return rvu_dbg_nix_queue_ctx_write(filp, buffer, count, ppos, + NIX_AQ_CTYPE_CQ); +} + +static int rvu_dbg_nix_cq_ctx_display(struct seq_file *filp, void *unused) +{ + return rvu_dbg_nix_queue_ctx_display(filp, unused, NIX_AQ_CTYPE_CQ); +} + +RVU_DEBUG_SEQ_FOPS(nix_cq_ctx, nix_cq_ctx_display, nix_cq_ctx_write); + +static void print_nix_qctx_qsize(struct seq_file *filp, int qsize, + unsigned long *bmap, char *qtype) +{ + char *buf; + + buf = kmalloc(PAGE_SIZE, GFP_KERNEL); + if (!buf) + return; + + bitmap_print_to_pagebuf(false, buf, bmap, qsize); + seq_printf(filp, "%s context count : %d\n", qtype, qsize); + seq_printf(filp, "%s context ena/dis bitmap : %s\n", + qtype, buf); + kfree(buf); +} + +static void print_nix_qsize(struct seq_file *filp, struct rvu_pfvf *pfvf) +{ + if (!pfvf->cq_ctx) + seq_puts(filp, "cq context is not initialized\n"); + else + print_nix_qctx_qsize(filp, pfvf->cq_ctx->qsize, pfvf->cq_bmap, + "cq"); + + if (!pfvf->rq_ctx) + seq_puts(filp, "rq context is not initialized\n"); + else + print_nix_qctx_qsize(filp, pfvf->rq_ctx->qsize, pfvf->rq_bmap, + "rq"); + + if (!pfvf->sq_ctx) + seq_puts(filp, "sq context is not initialized\n"); + else + print_nix_qctx_qsize(filp, pfvf->sq_ctx->qsize, pfvf->sq_bmap, + "sq"); +} + +static ssize_t rvu_dbg_nix_qsize_write(struct file *filp, + const char __user *buffer, + size_t count, loff_t *ppos) +{ + return rvu_dbg_qsize_write(filp, buffer, count, ppos, + BLKTYPE_NIX); +} + +static int rvu_dbg_nix_qsize_display(struct seq_file *filp, void *unused) +{ + return rvu_dbg_qsize_display(filp, unused, BLKTYPE_NIX); +} + +RVU_DEBUG_SEQ_FOPS(nix_qsize, nix_qsize_display, nix_qsize_write); + +static void print_band_prof_ctx(struct seq_file *m, + struct nix_bandprof_s *prof) +{ + char *str; + + switch (prof->pc_mode) { + case NIX_RX_PC_MODE_VLAN: + str = "VLAN"; + break; + case NIX_RX_PC_MODE_DSCP: + str = "DSCP"; + break; + case NIX_RX_PC_MODE_GEN: + str = "Generic"; + break; + case NIX_RX_PC_MODE_RSVD: + str = "Reserved"; + break; + } + seq_printf(m, "W0: pc_mode\t\t%s\n", str); + str = (prof->icolor == 3) ? "Color blind" : + (prof->icolor == 0) ? "Green" : + (prof->icolor == 1) ? "Yellow" : "Red"; + seq_printf(m, "W0: icolor\t\t%s\n", str); + seq_printf(m, "W0: tnl_ena\t\t%d\n", prof->tnl_ena); + seq_printf(m, "W0: peir_exponent\t%d\n", prof->peir_exponent); + seq_printf(m, "W0: pebs_exponent\t%d\n", prof->pebs_exponent); + seq_printf(m, "W0: cir_exponent\t%d\n", prof->cir_exponent); + seq_printf(m, "W0: cbs_exponent\t%d\n", prof->cbs_exponent); + seq_printf(m, "W0: peir_mantissa\t%d\n", prof->peir_mantissa); + seq_printf(m, "W0: pebs_mantissa\t%d\n", prof->pebs_mantissa); + seq_printf(m, "W0: cir_mantissa\t%d\n", prof->cir_mantissa); + + seq_printf(m, "W1: cbs_mantissa\t%d\n", prof->cbs_mantissa); + str = (prof->lmode == 0) ? "byte" : "packet"; + seq_printf(m, "W1: lmode\t\t%s\n", str); + seq_printf(m, "W1: l_select\t\t%d\n", prof->l_sellect); + seq_printf(m, "W1: rdiv\t\t%d\n", prof->rdiv); + seq_printf(m, "W1: adjust_exponent\t%d\n", prof->adjust_exponent); + seq_printf(m, "W1: adjust_mantissa\t%d\n", prof->adjust_mantissa); + str = (prof->gc_action == 0) ? "PASS" : + (prof->gc_action == 1) ? "DROP" : "RED"; + seq_printf(m, "W1: gc_action\t\t%s\n", str); + str = (prof->yc_action == 0) ? "PASS" : + (prof->yc_action == 1) ? "DROP" : "RED"; + seq_printf(m, "W1: yc_action\t\t%s\n", str); + str = (prof->rc_action == 0) ? "PASS" : + (prof->rc_action == 1) ? "DROP" : "RED"; + seq_printf(m, "W1: rc_action\t\t%s\n", str); + seq_printf(m, "W1: meter_algo\t\t%d\n", prof->meter_algo); + seq_printf(m, "W1: band_prof_id\t%d\n", prof->band_prof_id); + seq_printf(m, "W1: hl_en\t\t%d\n", prof->hl_en); + + seq_printf(m, "W2: ts\t\t\t%lld\n", (u64)prof->ts); + seq_printf(m, "W3: pe_accum\t\t%d\n", prof->pe_accum); + seq_printf(m, "W3: c_accum\t\t%d\n", prof->c_accum); + seq_printf(m, "W4: green_pkt_pass\t%lld\n", + (u64)prof->green_pkt_pass); + seq_printf(m, "W5: yellow_pkt_pass\t%lld\n", + (u64)prof->yellow_pkt_pass); + seq_printf(m, "W6: red_pkt_pass\t%lld\n", (u64)prof->red_pkt_pass); + seq_printf(m, "W7: green_octs_pass\t%lld\n", + (u64)prof->green_octs_pass); + seq_printf(m, "W8: yellow_octs_pass\t%lld\n", + (u64)prof->yellow_octs_pass); + seq_printf(m, "W9: red_octs_pass\t%lld\n", (u64)prof->red_octs_pass); + seq_printf(m, "W10: green_pkt_drop\t%lld\n", + (u64)prof->green_pkt_drop); + seq_printf(m, "W11: yellow_pkt_drop\t%lld\n", + (u64)prof->yellow_pkt_drop); + seq_printf(m, "W12: red_pkt_drop\t%lld\n", (u64)prof->red_pkt_drop); + seq_printf(m, "W13: green_octs_drop\t%lld\n", + (u64)prof->green_octs_drop); + seq_printf(m, "W14: yellow_octs_drop\t%lld\n", + (u64)prof->yellow_octs_drop); + seq_printf(m, "W15: red_octs_drop\t%lld\n", (u64)prof->red_octs_drop); + seq_puts(m, "==============================\n"); +} + +static int rvu_dbg_nix_band_prof_ctx_display(struct seq_file *m, void *unused) +{ + struct nix_hw *nix_hw = m->private; + struct nix_cn10k_aq_enq_req aq_req; + struct nix_cn10k_aq_enq_rsp aq_rsp; + struct rvu *rvu = nix_hw->rvu; + struct nix_ipolicer *ipolicer; + int layer, prof_idx, idx, rc; + u16 pcifunc; + char *str; + + /* Ingress policers do not exist on all platforms */ + if (!nix_hw->ipolicer) + return 0; + + for (layer = 0; layer < BAND_PROF_NUM_LAYERS; layer++) { + if (layer == BAND_PROF_INVAL_LAYER) + continue; + str = (layer == BAND_PROF_LEAF_LAYER) ? "Leaf" : + (layer == BAND_PROF_MID_LAYER) ? "Mid" : "Top"; + + seq_printf(m, "\n%s bandwidth profiles\n", str); + seq_puts(m, "=======================\n"); + + ipolicer = &nix_hw->ipolicer[layer]; + + for (idx = 0; idx < ipolicer->band_prof.max; idx++) { + if (is_rsrc_free(&ipolicer->band_prof, idx)) + continue; + + prof_idx = (idx & 0x3FFF) | (layer << 14); + rc = nix_aq_context_read(rvu, nix_hw, &aq_req, &aq_rsp, + 0x00, NIX_AQ_CTYPE_BANDPROF, + prof_idx); + if (rc) { + dev_err(rvu->dev, + "%s: Failed to fetch context of %s profile %d, err %d\n", + __func__, str, idx, rc); + return 0; + } + seq_printf(m, "\n%s bandwidth profile:: %d\n", str, idx); + pcifunc = ipolicer->pfvf_map[idx]; + if (!(pcifunc & RVU_PFVF_FUNC_MASK)) + seq_printf(m, "Allocated to :: PF %d\n", + rvu_get_pf(pcifunc)); + else + seq_printf(m, "Allocated to :: PF %d VF %d\n", + rvu_get_pf(pcifunc), + (pcifunc & RVU_PFVF_FUNC_MASK) - 1); + print_band_prof_ctx(m, &aq_rsp.prof); + } + } + return 0; +} + +RVU_DEBUG_SEQ_FOPS(nix_band_prof_ctx, nix_band_prof_ctx_display, NULL); + +static int rvu_dbg_nix_band_prof_rsrc_display(struct seq_file *m, void *unused) +{ + struct nix_hw *nix_hw = m->private; + struct nix_ipolicer *ipolicer; + int layer; + char *str; + + /* Ingress policers do not exist on all platforms */ + if (!nix_hw->ipolicer) + return 0; + + seq_puts(m, "\nBandwidth profile resource free count\n"); + seq_puts(m, "=====================================\n"); + for (layer = 0; layer < BAND_PROF_NUM_LAYERS; layer++) { + if (layer == BAND_PROF_INVAL_LAYER) + continue; + str = (layer == BAND_PROF_LEAF_LAYER) ? "Leaf" : + (layer == BAND_PROF_MID_LAYER) ? "Mid " : "Top "; + + ipolicer = &nix_hw->ipolicer[layer]; + seq_printf(m, "%s :: Max: %4d Free: %4d\n", str, + ipolicer->band_prof.max, + rvu_rsrc_free_count(&ipolicer->band_prof)); + } + seq_puts(m, "=====================================\n"); + + return 0; +} + +RVU_DEBUG_SEQ_FOPS(nix_band_prof_rsrc, nix_band_prof_rsrc_display, NULL); + +static void rvu_dbg_nix_init(struct rvu *rvu, int blkaddr) +{ + struct nix_hw *nix_hw; + + if (!is_block_implemented(rvu->hw, blkaddr)) + return; + + if (blkaddr == BLKADDR_NIX0) { + rvu->rvu_dbg.nix = debugfs_create_dir("nix", rvu->rvu_dbg.root); + nix_hw = &rvu->hw->nix[0]; + } else { + rvu->rvu_dbg.nix = debugfs_create_dir("nix1", + rvu->rvu_dbg.root); + nix_hw = &rvu->hw->nix[1]; + } + + debugfs_create_file("sq_ctx", 0600, rvu->rvu_dbg.nix, nix_hw, + &rvu_dbg_nix_sq_ctx_fops); + debugfs_create_file("rq_ctx", 0600, rvu->rvu_dbg.nix, nix_hw, + &rvu_dbg_nix_rq_ctx_fops); + debugfs_create_file("cq_ctx", 0600, rvu->rvu_dbg.nix, nix_hw, + &rvu_dbg_nix_cq_ctx_fops); + debugfs_create_file("ndc_tx_cache", 0600, rvu->rvu_dbg.nix, nix_hw, + &rvu_dbg_nix_ndc_tx_cache_fops); + debugfs_create_file("ndc_rx_cache", 0600, rvu->rvu_dbg.nix, nix_hw, + &rvu_dbg_nix_ndc_rx_cache_fops); + debugfs_create_file("ndc_tx_hits_miss", 0600, rvu->rvu_dbg.nix, nix_hw, + &rvu_dbg_nix_ndc_tx_hits_miss_fops); + debugfs_create_file("ndc_rx_hits_miss", 0600, rvu->rvu_dbg.nix, nix_hw, + &rvu_dbg_nix_ndc_rx_hits_miss_fops); + debugfs_create_file("qsize", 0600, rvu->rvu_dbg.nix, rvu, + &rvu_dbg_nix_qsize_fops); + debugfs_create_file("ingress_policer_ctx", 0600, rvu->rvu_dbg.nix, nix_hw, + &rvu_dbg_nix_band_prof_ctx_fops); + debugfs_create_file("ingress_policer_rsrc", 0600, rvu->rvu_dbg.nix, nix_hw, + &rvu_dbg_nix_band_prof_rsrc_fops); +} + +static void rvu_dbg_npa_init(struct rvu *rvu) +{ + rvu->rvu_dbg.npa = debugfs_create_dir("npa", rvu->rvu_dbg.root); + + debugfs_create_file("qsize", 0600, rvu->rvu_dbg.npa, rvu, + &rvu_dbg_npa_qsize_fops); + debugfs_create_file("aura_ctx", 0600, rvu->rvu_dbg.npa, rvu, + &rvu_dbg_npa_aura_ctx_fops); + debugfs_create_file("pool_ctx", 0600, rvu->rvu_dbg.npa, rvu, + &rvu_dbg_npa_pool_ctx_fops); + debugfs_create_file("ndc_cache", 0600, rvu->rvu_dbg.npa, rvu, + &rvu_dbg_npa_ndc_cache_fops); + debugfs_create_file("ndc_hits_miss", 0600, rvu->rvu_dbg.npa, rvu, + &rvu_dbg_npa_ndc_hits_miss_fops); +} + +#define PRINT_CGX_CUML_NIXRX_STATUS(idx, name) \ + ({ \ + u64 cnt; \ + err = rvu_cgx_nix_cuml_stats(rvu, cgxd, lmac_id, (idx), \ + NIX_STATS_RX, &(cnt)); \ + if (!err) \ + seq_printf(s, "%s: %llu\n", name, cnt); \ + cnt; \ + }) + +#define PRINT_CGX_CUML_NIXTX_STATUS(idx, name) \ + ({ \ + u64 cnt; \ + err = rvu_cgx_nix_cuml_stats(rvu, cgxd, lmac_id, (idx), \ + NIX_STATS_TX, &(cnt)); \ + if (!err) \ + seq_printf(s, "%s: %llu\n", name, cnt); \ + cnt; \ + }) + +static int cgx_print_stats(struct seq_file *s, int lmac_id) +{ + struct cgx_link_user_info linfo; + struct mac_ops *mac_ops; + void *cgxd = s->private; + u64 ucast, mcast, bcast; + int stat = 0, err = 0; + u64 tx_stat, rx_stat; + struct rvu *rvu; + + rvu = pci_get_drvdata(pci_get_device(PCI_VENDOR_ID_CAVIUM, + PCI_DEVID_OCTEONTX2_RVU_AF, NULL)); + if (!rvu) + return -ENODEV; + + mac_ops = get_mac_ops(cgxd); + /* There can be no CGX devices at all */ + if (!mac_ops) + return 0; + + /* Link status */ + seq_puts(s, "\n=======Link Status======\n\n"); + err = cgx_get_link_info(cgxd, lmac_id, &linfo); + if (err) + seq_puts(s, "Failed to read link status\n"); + seq_printf(s, "\nLink is %s %d Mbps\n\n", + linfo.link_up ? "UP" : "DOWN", linfo.speed); + + /* Rx stats */ + seq_printf(s, "\n=======NIX RX_STATS(%s port level)======\n\n", + mac_ops->name); + ucast = PRINT_CGX_CUML_NIXRX_STATUS(RX_UCAST, "rx_ucast_frames"); + if (err) + return err; + mcast = PRINT_CGX_CUML_NIXRX_STATUS(RX_MCAST, "rx_mcast_frames"); + if (err) + return err; + bcast = PRINT_CGX_CUML_NIXRX_STATUS(RX_BCAST, "rx_bcast_frames"); + if (err) + return err; + seq_printf(s, "rx_frames: %llu\n", ucast + mcast + bcast); + PRINT_CGX_CUML_NIXRX_STATUS(RX_OCTS, "rx_bytes"); + if (err) + return err; + PRINT_CGX_CUML_NIXRX_STATUS(RX_DROP, "rx_drops"); + if (err) + return err; + PRINT_CGX_CUML_NIXRX_STATUS(RX_ERR, "rx_errors"); + if (err) + return err; + + /* Tx stats */ + seq_printf(s, "\n=======NIX TX_STATS(%s port level)======\n\n", + mac_ops->name); + ucast = PRINT_CGX_CUML_NIXTX_STATUS(TX_UCAST, "tx_ucast_frames"); + if (err) + return err; + mcast = PRINT_CGX_CUML_NIXTX_STATUS(TX_MCAST, "tx_mcast_frames"); + if (err) + return err; + bcast = PRINT_CGX_CUML_NIXTX_STATUS(TX_BCAST, "tx_bcast_frames"); + if (err) + return err; + seq_printf(s, "tx_frames: %llu\n", ucast + mcast + bcast); + PRINT_CGX_CUML_NIXTX_STATUS(TX_OCTS, "tx_bytes"); + if (err) + return err; + PRINT_CGX_CUML_NIXTX_STATUS(TX_DROP, "tx_drops"); + if (err) + return err; + + /* Rx stats */ + seq_printf(s, "\n=======%s RX_STATS======\n\n", mac_ops->name); + while (stat < mac_ops->rx_stats_cnt) { + err = mac_ops->mac_get_rx_stats(cgxd, lmac_id, stat, &rx_stat); + if (err) + return err; + if (is_rvu_otx2(rvu)) + seq_printf(s, "%s: %llu\n", cgx_rx_stats_fields[stat], + rx_stat); + else + seq_printf(s, "%s: %llu\n", rpm_rx_stats_fields[stat], + rx_stat); + stat++; + } + + /* Tx stats */ + stat = 0; + seq_printf(s, "\n=======%s TX_STATS======\n\n", mac_ops->name); + while (stat < mac_ops->tx_stats_cnt) { + err = mac_ops->mac_get_tx_stats(cgxd, lmac_id, stat, &tx_stat); + if (err) + return err; + + if (is_rvu_otx2(rvu)) + seq_printf(s, "%s: %llu\n", cgx_tx_stats_fields[stat], + tx_stat); + else + seq_printf(s, "%s: %llu\n", rpm_tx_stats_fields[stat], + tx_stat); + stat++; + } + + return err; +} + +static int rvu_dbg_derive_lmacid(struct seq_file *filp, int *lmac_id) +{ + struct dentry *current_dir; + char *buf; + + current_dir = filp->file->f_path.dentry->d_parent; + buf = strrchr(current_dir->d_name.name, 'c'); + if (!buf) + return -EINVAL; + + return kstrtoint(buf + 1, 10, lmac_id); +} + +static int rvu_dbg_cgx_stat_display(struct seq_file *filp, void *unused) +{ + int lmac_id, err; + + err = rvu_dbg_derive_lmacid(filp, &lmac_id); + if (!err) + return cgx_print_stats(filp, lmac_id); + + return err; +} + +RVU_DEBUG_SEQ_FOPS(cgx_stat, cgx_stat_display, NULL); + +static int cgx_print_dmac_flt(struct seq_file *s, int lmac_id) +{ + struct pci_dev *pdev = NULL; + void *cgxd = s->private; + char *bcast, *mcast; + u16 index, domain; + u8 dmac[ETH_ALEN]; + struct rvu *rvu; + u64 cfg, mac; + int pf; + + rvu = pci_get_drvdata(pci_get_device(PCI_VENDOR_ID_CAVIUM, + PCI_DEVID_OCTEONTX2_RVU_AF, NULL)); + if (!rvu) + return -ENODEV; + + pf = cgxlmac_to_pf(rvu, cgx_get_cgxid(cgxd), lmac_id); + domain = 2; + + pdev = pci_get_domain_bus_and_slot(domain, pf + 1, 0); + if (!pdev) + return 0; + + cfg = cgx_read_dmac_ctrl(cgxd, lmac_id); + bcast = cfg & CGX_DMAC_BCAST_MODE ? "ACCEPT" : "REJECT"; + mcast = cfg & CGX_DMAC_MCAST_MODE ? "ACCEPT" : "REJECT"; + + seq_puts(s, + "PCI dev RVUPF BROADCAST MULTICAST FILTER-MODE\n"); + seq_printf(s, "%s PF%d %9s %9s", + dev_name(&pdev->dev), pf, bcast, mcast); + if (cfg & CGX_DMAC_CAM_ACCEPT) + seq_printf(s, "%12s\n\n", "UNICAST"); + else + seq_printf(s, "%16s\n\n", "PROMISCUOUS"); + + seq_puts(s, "\nDMAC-INDEX ADDRESS\n"); + + for (index = 0 ; index < 32 ; index++) { + cfg = cgx_read_dmac_entry(cgxd, index); + /* Display enabled dmac entries associated with current lmac */ + if (lmac_id == FIELD_GET(CGX_DMAC_CAM_ENTRY_LMACID, cfg) && + FIELD_GET(CGX_DMAC_CAM_ADDR_ENABLE, cfg)) { + mac = FIELD_GET(CGX_RX_DMAC_ADR_MASK, cfg); + u64_to_ether_addr(mac, dmac); + seq_printf(s, "%7d %pM\n", index, dmac); + } + } + + pci_dev_put(pdev); + return 0; +} + +static int rvu_dbg_cgx_dmac_flt_display(struct seq_file *filp, void *unused) +{ + int err, lmac_id; + + err = rvu_dbg_derive_lmacid(filp, &lmac_id); + if (!err) + return cgx_print_dmac_flt(filp, lmac_id); + + return err; +} + +RVU_DEBUG_SEQ_FOPS(cgx_dmac_flt, cgx_dmac_flt_display, NULL); + +static void rvu_dbg_cgx_init(struct rvu *rvu) +{ + struct mac_ops *mac_ops; + unsigned long lmac_bmap; + int i, lmac_id; + char dname[20]; + void *cgx; + + if (!cgx_get_cgxcnt_max()) + return; + + mac_ops = get_mac_ops(rvu_first_cgx_pdata(rvu)); + if (!mac_ops) + return; + + rvu->rvu_dbg.cgx_root = debugfs_create_dir(mac_ops->name, + rvu->rvu_dbg.root); + + for (i = 0; i < cgx_get_cgxcnt_max(); i++) { + cgx = rvu_cgx_pdata(i, rvu); + if (!cgx) + continue; + lmac_bmap = cgx_get_lmac_bmap(cgx); + /* cgx debugfs dir */ + sprintf(dname, "%s%d", mac_ops->name, i); + rvu->rvu_dbg.cgx = debugfs_create_dir(dname, + rvu->rvu_dbg.cgx_root); + + for_each_set_bit(lmac_id, &lmac_bmap, rvu->hw->lmac_per_cgx) { + /* lmac debugfs dir */ + sprintf(dname, "lmac%d", lmac_id); + rvu->rvu_dbg.lmac = + debugfs_create_dir(dname, rvu->rvu_dbg.cgx); + + debugfs_create_file("stats", 0600, rvu->rvu_dbg.lmac, + cgx, &rvu_dbg_cgx_stat_fops); + debugfs_create_file("mac_filter", 0600, + rvu->rvu_dbg.lmac, cgx, + &rvu_dbg_cgx_dmac_flt_fops); + } + } +} + +/* NPC debugfs APIs */ +static void rvu_print_npc_mcam_info(struct seq_file *s, + u16 pcifunc, int blkaddr) +{ + struct rvu *rvu = s->private; + int entry_acnt, entry_ecnt; + int cntr_acnt, cntr_ecnt; + + rvu_npc_get_mcam_entry_alloc_info(rvu, pcifunc, blkaddr, + &entry_acnt, &entry_ecnt); + rvu_npc_get_mcam_counter_alloc_info(rvu, pcifunc, blkaddr, + &cntr_acnt, &cntr_ecnt); + if (!entry_acnt && !cntr_acnt) + return; + + if (!(pcifunc & RVU_PFVF_FUNC_MASK)) + seq_printf(s, "\n\t\t Device \t\t: PF%d\n", + rvu_get_pf(pcifunc)); + else + seq_printf(s, "\n\t\t Device \t\t: PF%d VF%d\n", + rvu_get_pf(pcifunc), + (pcifunc & RVU_PFVF_FUNC_MASK) - 1); + + if (entry_acnt) { + seq_printf(s, "\t\t Entries allocated \t: %d\n", entry_acnt); + seq_printf(s, "\t\t Entries enabled \t: %d\n", entry_ecnt); + } + if (cntr_acnt) { + seq_printf(s, "\t\t Counters allocated \t: %d\n", cntr_acnt); + seq_printf(s, "\t\t Counters enabled \t: %d\n", cntr_ecnt); + } +} + +static int rvu_dbg_npc_mcam_info_display(struct seq_file *filp, void *unsued) +{ + struct rvu *rvu = filp->private; + int pf, vf, numvfs, blkaddr; + struct npc_mcam *mcam; + u16 pcifunc, counters; + u64 cfg; + + blkaddr = rvu_get_blkaddr(rvu, BLKTYPE_NPC, 0); + if (blkaddr < 0) + return -ENODEV; + + mcam = &rvu->hw->mcam; + counters = rvu->hw->npc_counters; + + seq_puts(filp, "\nNPC MCAM info:\n"); + /* MCAM keywidth on receive and transmit sides */ + cfg = rvu_read64(rvu, blkaddr, NPC_AF_INTFX_KEX_CFG(NIX_INTF_RX)); + cfg = (cfg >> 32) & 0x07; + seq_printf(filp, "\t\t RX keywidth \t: %s\n", (cfg == NPC_MCAM_KEY_X1) ? + "112bits" : ((cfg == NPC_MCAM_KEY_X2) ? + "224bits" : "448bits")); + cfg = rvu_read64(rvu, blkaddr, NPC_AF_INTFX_KEX_CFG(NIX_INTF_TX)); + cfg = (cfg >> 32) & 0x07; + seq_printf(filp, "\t\t TX keywidth \t: %s\n", (cfg == NPC_MCAM_KEY_X1) ? + "112bits" : ((cfg == NPC_MCAM_KEY_X2) ? + "224bits" : "448bits")); + + mutex_lock(&mcam->lock); + /* MCAM entries */ + seq_printf(filp, "\n\t\t MCAM entries \t: %d\n", mcam->total_entries); + seq_printf(filp, "\t\t Reserved \t: %d\n", + mcam->total_entries - mcam->bmap_entries); + seq_printf(filp, "\t\t Available \t: %d\n", mcam->bmap_fcnt); + + /* MCAM counters */ + seq_printf(filp, "\n\t\t MCAM counters \t: %d\n", counters); + seq_printf(filp, "\t\t Reserved \t: %d\n", + counters - mcam->counters.max); + seq_printf(filp, "\t\t Available \t: %d\n", + rvu_rsrc_free_count(&mcam->counters)); + + if (mcam->bmap_entries == mcam->bmap_fcnt) { + mutex_unlock(&mcam->lock); + return 0; + } + + seq_puts(filp, "\n\t\t Current allocation\n"); + seq_puts(filp, "\t\t====================\n"); + for (pf = 0; pf < rvu->hw->total_pfs; pf++) { + pcifunc = (pf << RVU_PFVF_PF_SHIFT); + rvu_print_npc_mcam_info(filp, pcifunc, blkaddr); + + cfg = rvu_read64(rvu, BLKADDR_RVUM, RVU_PRIV_PFX_CFG(pf)); + numvfs = (cfg >> 12) & 0xFF; + for (vf = 0; vf < numvfs; vf++) { + pcifunc = (pf << RVU_PFVF_PF_SHIFT) | (vf + 1); + rvu_print_npc_mcam_info(filp, pcifunc, blkaddr); + } + } + + mutex_unlock(&mcam->lock); + return 0; +} + +RVU_DEBUG_SEQ_FOPS(npc_mcam_info, npc_mcam_info_display, NULL); + +static int rvu_dbg_npc_rx_miss_stats_display(struct seq_file *filp, + void *unused) +{ + struct rvu *rvu = filp->private; + struct npc_mcam *mcam; + int blkaddr; + + blkaddr = rvu_get_blkaddr(rvu, BLKTYPE_NPC, 0); + if (blkaddr < 0) + return -ENODEV; + + mcam = &rvu->hw->mcam; + + seq_puts(filp, "\nNPC MCAM RX miss action stats\n"); + seq_printf(filp, "\t\tStat %d: \t%lld\n", mcam->rx_miss_act_cntr, + rvu_read64(rvu, blkaddr, + NPC_AF_MATCH_STATX(mcam->rx_miss_act_cntr))); + + return 0; +} + +RVU_DEBUG_SEQ_FOPS(npc_rx_miss_act, npc_rx_miss_stats_display, NULL); + +static void rvu_dbg_npc_mcam_show_flows(struct seq_file *s, + struct rvu_npc_mcam_rule *rule) +{ + u8 bit; + + for_each_set_bit(bit, (unsigned long *)&rule->features, 64) { + seq_printf(s, "\t%s ", npc_get_field_name(bit)); + switch (bit) { + case NPC_LXMB: + if (rule->lxmb == 1) + seq_puts(s, "\tL2M nibble is set\n"); + else + seq_puts(s, "\tL2B nibble is set\n"); + break; + case NPC_DMAC: + seq_printf(s, "%pM ", rule->packet.dmac); + seq_printf(s, "mask %pM\n", rule->mask.dmac); + break; + case NPC_SMAC: + seq_printf(s, "%pM ", rule->packet.smac); + seq_printf(s, "mask %pM\n", rule->mask.smac); + break; + case NPC_ETYPE: + seq_printf(s, "0x%x ", ntohs(rule->packet.etype)); + seq_printf(s, "mask 0x%x\n", ntohs(rule->mask.etype)); + break; + case NPC_OUTER_VID: + seq_printf(s, "0x%x ", ntohs(rule->packet.vlan_tci)); + seq_printf(s, "mask 0x%x\n", + ntohs(rule->mask.vlan_tci)); + break; + case NPC_TOS: + seq_printf(s, "%d ", rule->packet.tos); + seq_printf(s, "mask 0x%x\n", rule->mask.tos); + break; + case NPC_SIP_IPV4: + seq_printf(s, "%pI4 ", &rule->packet.ip4src); + seq_printf(s, "mask %pI4\n", &rule->mask.ip4src); + break; + case NPC_DIP_IPV4: + seq_printf(s, "%pI4 ", &rule->packet.ip4dst); + seq_printf(s, "mask %pI4\n", &rule->mask.ip4dst); + break; + case NPC_SIP_IPV6: + seq_printf(s, "%pI6 ", rule->packet.ip6src); + seq_printf(s, "mask %pI6\n", rule->mask.ip6src); + break; + case NPC_DIP_IPV6: + seq_printf(s, "%pI6 ", rule->packet.ip6dst); + seq_printf(s, "mask %pI6\n", rule->mask.ip6dst); + break; + case NPC_SPORT_TCP: + case NPC_SPORT_UDP: + case NPC_SPORT_SCTP: + seq_printf(s, "%d ", ntohs(rule->packet.sport)); + seq_printf(s, "mask 0x%x\n", ntohs(rule->mask.sport)); + break; + case NPC_DPORT_TCP: + case NPC_DPORT_UDP: + case NPC_DPORT_SCTP: + seq_printf(s, "%d ", ntohs(rule->packet.dport)); + seq_printf(s, "mask 0x%x\n", ntohs(rule->mask.dport)); + break; + default: + seq_puts(s, "\n"); + break; + } + } +} + +static void rvu_dbg_npc_mcam_show_action(struct seq_file *s, + struct rvu_npc_mcam_rule *rule) +{ + if (is_npc_intf_tx(rule->intf)) { + switch (rule->tx_action.op) { + case NIX_TX_ACTIONOP_DROP: + seq_puts(s, "\taction: Drop\n"); + break; + case NIX_TX_ACTIONOP_UCAST_DEFAULT: + seq_puts(s, "\taction: Unicast to default channel\n"); + break; + case NIX_TX_ACTIONOP_UCAST_CHAN: + seq_printf(s, "\taction: Unicast to channel %d\n", + rule->tx_action.index); + break; + case NIX_TX_ACTIONOP_MCAST: + seq_puts(s, "\taction: Multicast\n"); + break; + case NIX_TX_ACTIONOP_DROP_VIOL: + seq_puts(s, "\taction: Lockdown Violation Drop\n"); + break; + default: + break; + } + } else { + switch (rule->rx_action.op) { + case NIX_RX_ACTIONOP_DROP: + seq_puts(s, "\taction: Drop\n"); + break; + case NIX_RX_ACTIONOP_UCAST: + seq_printf(s, "\taction: Direct to queue %d\n", + rule->rx_action.index); + break; + case NIX_RX_ACTIONOP_RSS: + seq_puts(s, "\taction: RSS\n"); + break; + case NIX_RX_ACTIONOP_UCAST_IPSEC: + seq_puts(s, "\taction: Unicast ipsec\n"); + break; + case NIX_RX_ACTIONOP_MCAST: + seq_puts(s, "\taction: Multicast\n"); + break; + default: + break; + } + } +} + +static const char *rvu_dbg_get_intf_name(int intf) +{ + switch (intf) { + case NIX_INTFX_RX(0): + return "NIX0_RX"; + case NIX_INTFX_RX(1): + return "NIX1_RX"; + case NIX_INTFX_TX(0): + return "NIX0_TX"; + case NIX_INTFX_TX(1): + return "NIX1_TX"; + default: + break; + } + + return "unknown"; +} + +static int rvu_dbg_npc_mcam_show_rules(struct seq_file *s, void *unused) +{ + struct rvu_npc_mcam_rule *iter; + struct rvu *rvu = s->private; + struct npc_mcam *mcam; + int pf, vf = -1; + bool enabled; + int blkaddr; + u16 target; + u64 hits; + + blkaddr = rvu_get_blkaddr(rvu, BLKTYPE_NPC, 0); + if (blkaddr < 0) + return 0; + + mcam = &rvu->hw->mcam; + + mutex_lock(&mcam->lock); + list_for_each_entry(iter, &mcam->mcam_rules, list) { + pf = (iter->owner >> RVU_PFVF_PF_SHIFT) & RVU_PFVF_PF_MASK; + seq_printf(s, "\n\tInstalled by: PF%d ", pf); + + if (iter->owner & RVU_PFVF_FUNC_MASK) { + vf = (iter->owner & RVU_PFVF_FUNC_MASK) - 1; + seq_printf(s, "VF%d", vf); + } + seq_puts(s, "\n"); + + seq_printf(s, "\tdirection: %s\n", is_npc_intf_rx(iter->intf) ? + "RX" : "TX"); + seq_printf(s, "\tinterface: %s\n", + rvu_dbg_get_intf_name(iter->intf)); + seq_printf(s, "\tmcam entry: %d\n", iter->entry); + + rvu_dbg_npc_mcam_show_flows(s, iter); + if (is_npc_intf_rx(iter->intf)) { + target = iter->rx_action.pf_func; + pf = (target >> RVU_PFVF_PF_SHIFT) & RVU_PFVF_PF_MASK; + seq_printf(s, "\tForward to: PF%d ", pf); + + if (target & RVU_PFVF_FUNC_MASK) { + vf = (target & RVU_PFVF_FUNC_MASK) - 1; + seq_printf(s, "VF%d", vf); + } + seq_puts(s, "\n"); + seq_printf(s, "\tchannel: 0x%x\n", iter->chan); + seq_printf(s, "\tchannel_mask: 0x%x\n", iter->chan_mask); + } + + rvu_dbg_npc_mcam_show_action(s, iter); + + enabled = is_mcam_entry_enabled(rvu, mcam, blkaddr, iter->entry); + seq_printf(s, "\tenabled: %s\n", enabled ? "yes" : "no"); + + if (!iter->has_cntr) + continue; + seq_printf(s, "\tcounter: %d\n", iter->cntr); + + hits = rvu_read64(rvu, blkaddr, NPC_AF_MATCH_STATX(iter->cntr)); + seq_printf(s, "\thits: %lld\n", hits); + } + mutex_unlock(&mcam->lock); + + return 0; +} + +RVU_DEBUG_SEQ_FOPS(npc_mcam_rules, npc_mcam_show_rules, NULL); + +static int rvu_dbg_npc_exact_show_entries(struct seq_file *s, void *unused) +{ + struct npc_exact_table_entry *mem_entry[NPC_EXACT_TBL_MAX_WAYS] = { 0 }; + struct npc_exact_table_entry *cam_entry; + struct npc_exact_table *table; + struct rvu *rvu = s->private; + int i, j; + + u8 bitmap = 0; + + table = rvu->hw->table; + + mutex_lock(&table->lock); + + /* Check if there is at least one entry in mem table */ + if (!table->mem_tbl_entry_cnt) + goto dump_cam_table; + + /* Print table headers */ + seq_puts(s, "\n\tExact Match MEM Table\n"); + seq_puts(s, "Index\t"); + + for (i = 0; i < table->mem_table.ways; i++) { + mem_entry[i] = list_first_entry_or_null(&table->lhead_mem_tbl_entry[i], + struct npc_exact_table_entry, list); + + seq_printf(s, "Way-%d\t\t\t\t\t", i); + } + + seq_puts(s, "\n"); + for (i = 0; i < table->mem_table.ways; i++) + seq_puts(s, "\tChan MAC \t"); + + seq_puts(s, "\n\n"); + + /* Print mem table entries */ + for (i = 0; i < table->mem_table.depth; i++) { + bitmap = 0; + for (j = 0; j < table->mem_table.ways; j++) { + if (!mem_entry[j]) + continue; + + if (mem_entry[j]->index != i) + continue; + + bitmap |= BIT(j); + } + + /* No valid entries */ + if (!bitmap) + continue; + + seq_printf(s, "%d\t", i); + for (j = 0; j < table->mem_table.ways; j++) { + if (!(bitmap & BIT(j))) { + seq_puts(s, "nil\t\t\t\t\t"); + continue; + } + + seq_printf(s, "0x%x %pM\t\t\t", mem_entry[j]->chan, + mem_entry[j]->mac); + mem_entry[j] = list_next_entry(mem_entry[j], list); + } + seq_puts(s, "\n"); + } + +dump_cam_table: + + if (!table->cam_tbl_entry_cnt) + goto done; + + seq_puts(s, "\n\tExact Match CAM Table\n"); + seq_puts(s, "index\tchan\tMAC\n"); + + /* Traverse cam table entries */ + list_for_each_entry(cam_entry, &table->lhead_cam_tbl_entry, list) { + seq_printf(s, "%d\t0x%x\t%pM\n", cam_entry->index, cam_entry->chan, + cam_entry->mac); + } + +done: + mutex_unlock(&table->lock); + return 0; +} + +RVU_DEBUG_SEQ_FOPS(npc_exact_entries, npc_exact_show_entries, NULL); + +static int rvu_dbg_npc_exact_show_info(struct seq_file *s, void *unused) +{ + struct npc_exact_table *table; + struct rvu *rvu = s->private; + int i; + + table = rvu->hw->table; + + seq_puts(s, "\n\tExact Table Info\n"); + seq_printf(s, "Exact Match Feature : %s\n", + rvu->hw->cap.npc_exact_match_enabled ? "enabled" : "disable"); + if (!rvu->hw->cap.npc_exact_match_enabled) + return 0; + + seq_puts(s, "\nMCAM Index\tMAC Filter Rules Count\n"); + for (i = 0; i < table->num_drop_rules; i++) + seq_printf(s, "%d\t\t%d\n", i, table->cnt_cmd_rules[i]); + + seq_puts(s, "\nMcam Index\tPromisc Mode Status\n"); + for (i = 0; i < table->num_drop_rules; i++) + seq_printf(s, "%d\t\t%s\n", i, table->promisc_mode[i] ? "on" : "off"); + + seq_puts(s, "\n\tMEM Table Info\n"); + seq_printf(s, "Ways : %d\n", table->mem_table.ways); + seq_printf(s, "Depth : %d\n", table->mem_table.depth); + seq_printf(s, "Mask : 0x%llx\n", table->mem_table.mask); + seq_printf(s, "Hash Mask : 0x%x\n", table->mem_table.hash_mask); + seq_printf(s, "Hash Offset : 0x%x\n", table->mem_table.hash_offset); + + seq_puts(s, "\n\tCAM Table Info\n"); + seq_printf(s, "Depth : %d\n", table->cam_table.depth); + + return 0; +} + +RVU_DEBUG_SEQ_FOPS(npc_exact_info, npc_exact_show_info, NULL); + +static int rvu_dbg_npc_exact_drop_cnt(struct seq_file *s, void *unused) +{ + struct npc_exact_table *table; + struct rvu *rvu = s->private; + struct npc_key_field *field; + u16 chan, pcifunc; + int blkaddr, i; + u64 cfg, cam1; + char *str; + + blkaddr = rvu_get_blkaddr(rvu, BLKTYPE_NPC, 0); + table = rvu->hw->table; + + field = &rvu->hw->mcam.rx_key_fields[NPC_CHAN]; + + seq_puts(s, "\n\t Exact Hit on drop status\n"); + seq_puts(s, "\npcifunc\tmcam_idx\tHits\tchan\tstatus\n"); + + for (i = 0; i < table->num_drop_rules; i++) { + pcifunc = rvu_npc_exact_drop_rule_to_pcifunc(rvu, i); + cfg = rvu_read64(rvu, blkaddr, NPC_AF_MCAMEX_BANKX_CFG(i, 0)); + + /* channel will be always in keyword 0 */ + cam1 = rvu_read64(rvu, blkaddr, + NPC_AF_MCAMEX_BANKX_CAMX_W0(i, 0, 1)); + chan = field->kw_mask[0] & cam1; + + str = (cfg & 1) ? "enabled" : "disabled"; + + seq_printf(s, "0x%x\t%d\t\t%llu\t0x%x\t%s\n", pcifunc, i, + rvu_read64(rvu, blkaddr, + NPC_AF_MATCH_STATX(table->counter_idx[i])), + chan, str); + } + + return 0; +} + +RVU_DEBUG_SEQ_FOPS(npc_exact_drop_cnt, npc_exact_drop_cnt, NULL); + +static void rvu_dbg_npc_init(struct rvu *rvu) +{ + rvu->rvu_dbg.npc = debugfs_create_dir("npc", rvu->rvu_dbg.root); + + debugfs_create_file("mcam_info", 0444, rvu->rvu_dbg.npc, rvu, + &rvu_dbg_npc_mcam_info_fops); + debugfs_create_file("mcam_rules", 0444, rvu->rvu_dbg.npc, rvu, + &rvu_dbg_npc_mcam_rules_fops); + + debugfs_create_file("rx_miss_act_stats", 0444, rvu->rvu_dbg.npc, rvu, + &rvu_dbg_npc_rx_miss_act_fops); + + if (!rvu->hw->cap.npc_exact_match_enabled) + return; + + debugfs_create_file("exact_entries", 0444, rvu->rvu_dbg.npc, rvu, + &rvu_dbg_npc_exact_entries_fops); + + debugfs_create_file("exact_info", 0444, rvu->rvu_dbg.npc, rvu, + &rvu_dbg_npc_exact_info_fops); + + debugfs_create_file("exact_drop_cnt", 0444, rvu->rvu_dbg.npc, rvu, + &rvu_dbg_npc_exact_drop_cnt_fops); + +} + +static int cpt_eng_sts_display(struct seq_file *filp, u8 eng_type) +{ + struct cpt_ctx *ctx = filp->private; + u64 busy_sts = 0, free_sts = 0; + u32 e_min = 0, e_max = 0, e, i; + u16 max_ses, max_ies, max_aes; + struct rvu *rvu = ctx->rvu; + int blkaddr = ctx->blkaddr; + u64 reg; + + reg = rvu_read64(rvu, blkaddr, CPT_AF_CONSTANTS1); + max_ses = reg & 0xffff; + max_ies = (reg >> 16) & 0xffff; + max_aes = (reg >> 32) & 0xffff; + + switch (eng_type) { + case CPT_AE_TYPE: + e_min = max_ses + max_ies; + e_max = max_ses + max_ies + max_aes; + break; + case CPT_SE_TYPE: + e_min = 0; + e_max = max_ses; + break; + case CPT_IE_TYPE: + e_min = max_ses; + e_max = max_ses + max_ies; + break; + default: + return -EINVAL; + } + + for (e = e_min, i = 0; e < e_max; e++, i++) { + reg = rvu_read64(rvu, blkaddr, CPT_AF_EXEX_STS(e)); + if (reg & 0x1) + busy_sts |= 1ULL << i; + + if (reg & 0x2) + free_sts |= 1ULL << i; + } + seq_printf(filp, "FREE STS : 0x%016llx\n", free_sts); + seq_printf(filp, "BUSY STS : 0x%016llx\n", busy_sts); + + return 0; +} + +static int rvu_dbg_cpt_ae_sts_display(struct seq_file *filp, void *unused) +{ + return cpt_eng_sts_display(filp, CPT_AE_TYPE); +} + +RVU_DEBUG_SEQ_FOPS(cpt_ae_sts, cpt_ae_sts_display, NULL); + +static int rvu_dbg_cpt_se_sts_display(struct seq_file *filp, void *unused) +{ + return cpt_eng_sts_display(filp, CPT_SE_TYPE); +} + +RVU_DEBUG_SEQ_FOPS(cpt_se_sts, cpt_se_sts_display, NULL); + +static int rvu_dbg_cpt_ie_sts_display(struct seq_file *filp, void *unused) +{ + return cpt_eng_sts_display(filp, CPT_IE_TYPE); +} + +RVU_DEBUG_SEQ_FOPS(cpt_ie_sts, cpt_ie_sts_display, NULL); + +static int rvu_dbg_cpt_engines_info_display(struct seq_file *filp, void *unused) +{ + struct cpt_ctx *ctx = filp->private; + u16 max_ses, max_ies, max_aes; + struct rvu *rvu = ctx->rvu; + int blkaddr = ctx->blkaddr; + u32 e_max, e; + u64 reg; + + reg = rvu_read64(rvu, blkaddr, CPT_AF_CONSTANTS1); + max_ses = reg & 0xffff; + max_ies = (reg >> 16) & 0xffff; + max_aes = (reg >> 32) & 0xffff; + + e_max = max_ses + max_ies + max_aes; + + seq_puts(filp, "===========================================\n"); + for (e = 0; e < e_max; e++) { + reg = rvu_read64(rvu, blkaddr, CPT_AF_EXEX_CTL2(e)); + seq_printf(filp, "CPT Engine[%u] Group Enable 0x%02llx\n", e, + reg & 0xff); + reg = rvu_read64(rvu, blkaddr, CPT_AF_EXEX_ACTIVE(e)); + seq_printf(filp, "CPT Engine[%u] Active Info 0x%llx\n", e, + reg); + reg = rvu_read64(rvu, blkaddr, CPT_AF_EXEX_CTL(e)); + seq_printf(filp, "CPT Engine[%u] Control 0x%llx\n", e, + reg); + seq_puts(filp, "===========================================\n"); + } + return 0; +} + +RVU_DEBUG_SEQ_FOPS(cpt_engines_info, cpt_engines_info_display, NULL); + +static int rvu_dbg_cpt_lfs_info_display(struct seq_file *filp, void *unused) +{ + struct cpt_ctx *ctx = filp->private; + int blkaddr = ctx->blkaddr; + struct rvu *rvu = ctx->rvu; + struct rvu_block *block; + struct rvu_hwinfo *hw; + u64 reg; + u32 lf; + + hw = rvu->hw; + block = &hw->block[blkaddr]; + if (!block->lf.bmap) + return -ENODEV; + + seq_puts(filp, "===========================================\n"); + for (lf = 0; lf < block->lf.max; lf++) { + reg = rvu_read64(rvu, blkaddr, CPT_AF_LFX_CTL(lf)); + seq_printf(filp, "CPT Lf[%u] CTL 0x%llx\n", lf, reg); + reg = rvu_read64(rvu, blkaddr, CPT_AF_LFX_CTL2(lf)); + seq_printf(filp, "CPT Lf[%u] CTL2 0x%llx\n", lf, reg); + reg = rvu_read64(rvu, blkaddr, CPT_AF_LFX_PTR_CTL(lf)); + seq_printf(filp, "CPT Lf[%u] PTR_CTL 0x%llx\n", lf, reg); + reg = rvu_read64(rvu, blkaddr, block->lfcfg_reg | + (lf << block->lfshift)); + seq_printf(filp, "CPT Lf[%u] CFG 0x%llx\n", lf, reg); + seq_puts(filp, "===========================================\n"); + } + return 0; +} + +RVU_DEBUG_SEQ_FOPS(cpt_lfs_info, cpt_lfs_info_display, NULL); + +static int rvu_dbg_cpt_err_info_display(struct seq_file *filp, void *unused) +{ + struct cpt_ctx *ctx = filp->private; + struct rvu *rvu = ctx->rvu; + int blkaddr = ctx->blkaddr; + u64 reg0, reg1; + + reg0 = rvu_read64(rvu, blkaddr, CPT_AF_FLTX_INT(0)); + reg1 = rvu_read64(rvu, blkaddr, CPT_AF_FLTX_INT(1)); + seq_printf(filp, "CPT_AF_FLTX_INT: 0x%llx 0x%llx\n", reg0, reg1); + reg0 = rvu_read64(rvu, blkaddr, CPT_AF_PSNX_EXE(0)); + reg1 = rvu_read64(rvu, blkaddr, CPT_AF_PSNX_EXE(1)); + seq_printf(filp, "CPT_AF_PSNX_EXE: 0x%llx 0x%llx\n", reg0, reg1); + reg0 = rvu_read64(rvu, blkaddr, CPT_AF_PSNX_LF(0)); + seq_printf(filp, "CPT_AF_PSNX_LF: 0x%llx\n", reg0); + reg0 = rvu_read64(rvu, blkaddr, CPT_AF_RVU_INT); + seq_printf(filp, "CPT_AF_RVU_INT: 0x%llx\n", reg0); + reg0 = rvu_read64(rvu, blkaddr, CPT_AF_RAS_INT); + seq_printf(filp, "CPT_AF_RAS_INT: 0x%llx\n", reg0); + reg0 = rvu_read64(rvu, blkaddr, CPT_AF_EXE_ERR_INFO); + seq_printf(filp, "CPT_AF_EXE_ERR_INFO: 0x%llx\n", reg0); + + return 0; +} + +RVU_DEBUG_SEQ_FOPS(cpt_err_info, cpt_err_info_display, NULL); + +static int rvu_dbg_cpt_pc_display(struct seq_file *filp, void *unused) +{ + struct cpt_ctx *ctx = filp->private; + struct rvu *rvu = ctx->rvu; + int blkaddr = ctx->blkaddr; + u64 reg; + + reg = rvu_read64(rvu, blkaddr, CPT_AF_INST_REQ_PC); + seq_printf(filp, "CPT instruction requests %llu\n", reg); + reg = rvu_read64(rvu, blkaddr, CPT_AF_INST_LATENCY_PC); + seq_printf(filp, "CPT instruction latency %llu\n", reg); + reg = rvu_read64(rvu, blkaddr, CPT_AF_RD_REQ_PC); + seq_printf(filp, "CPT NCB read requests %llu\n", reg); + reg = rvu_read64(rvu, blkaddr, CPT_AF_RD_LATENCY_PC); + seq_printf(filp, "CPT NCB read latency %llu\n", reg); + reg = rvu_read64(rvu, blkaddr, CPT_AF_RD_UC_PC); + seq_printf(filp, "CPT read requests caused by UC fills %llu\n", reg); + reg = rvu_read64(rvu, blkaddr, CPT_AF_ACTIVE_CYCLES_PC); + seq_printf(filp, "CPT active cycles pc %llu\n", reg); + reg = rvu_read64(rvu, blkaddr, CPT_AF_CPTCLK_CNT); + seq_printf(filp, "CPT clock count pc %llu\n", reg); + + return 0; +} + +RVU_DEBUG_SEQ_FOPS(cpt_pc, cpt_pc_display, NULL); + +static void rvu_dbg_cpt_init(struct rvu *rvu, int blkaddr) +{ + struct cpt_ctx *ctx; + + if (!is_block_implemented(rvu->hw, blkaddr)) + return; + + if (blkaddr == BLKADDR_CPT0) { + rvu->rvu_dbg.cpt = debugfs_create_dir("cpt", rvu->rvu_dbg.root); + ctx = &rvu->rvu_dbg.cpt_ctx[0]; + ctx->blkaddr = BLKADDR_CPT0; + ctx->rvu = rvu; + } else { + rvu->rvu_dbg.cpt = debugfs_create_dir("cpt1", + rvu->rvu_dbg.root); + ctx = &rvu->rvu_dbg.cpt_ctx[1]; + ctx->blkaddr = BLKADDR_CPT1; + ctx->rvu = rvu; + } + + debugfs_create_file("cpt_pc", 0600, rvu->rvu_dbg.cpt, ctx, + &rvu_dbg_cpt_pc_fops); + debugfs_create_file("cpt_ae_sts", 0600, rvu->rvu_dbg.cpt, ctx, + &rvu_dbg_cpt_ae_sts_fops); + debugfs_create_file("cpt_se_sts", 0600, rvu->rvu_dbg.cpt, ctx, + &rvu_dbg_cpt_se_sts_fops); + debugfs_create_file("cpt_ie_sts", 0600, rvu->rvu_dbg.cpt, ctx, + &rvu_dbg_cpt_ie_sts_fops); + debugfs_create_file("cpt_engines_info", 0600, rvu->rvu_dbg.cpt, ctx, + &rvu_dbg_cpt_engines_info_fops); + debugfs_create_file("cpt_lfs_info", 0600, rvu->rvu_dbg.cpt, ctx, + &rvu_dbg_cpt_lfs_info_fops); + debugfs_create_file("cpt_err_info", 0600, rvu->rvu_dbg.cpt, ctx, + &rvu_dbg_cpt_err_info_fops); +} + +static const char *rvu_get_dbg_dir_name(struct rvu *rvu) +{ + if (!is_rvu_otx2(rvu)) + return "cn10k"; + else + return "octeontx2"; +} + +void rvu_dbg_init(struct rvu *rvu) +{ + rvu->rvu_dbg.root = debugfs_create_dir(rvu_get_dbg_dir_name(rvu), NULL); + + debugfs_create_file("rsrc_alloc", 0444, rvu->rvu_dbg.root, rvu, + &rvu_dbg_rsrc_status_fops); + + if (!is_rvu_otx2(rvu)) + debugfs_create_file("lmtst_map_table", 0444, rvu->rvu_dbg.root, + rvu, &rvu_dbg_lmtst_map_table_fops); + + if (!cgx_get_cgxcnt_max()) + goto create; + + if (is_rvu_otx2(rvu)) + debugfs_create_file("rvu_pf_cgx_map", 0444, rvu->rvu_dbg.root, + rvu, &rvu_dbg_rvu_pf_cgx_map_fops); + else + debugfs_create_file("rvu_pf_rpm_map", 0444, rvu->rvu_dbg.root, + rvu, &rvu_dbg_rvu_pf_cgx_map_fops); + +create: + rvu_dbg_npa_init(rvu); + rvu_dbg_nix_init(rvu, BLKADDR_NIX0); + + rvu_dbg_nix_init(rvu, BLKADDR_NIX1); + rvu_dbg_cgx_init(rvu); + rvu_dbg_npc_init(rvu); + rvu_dbg_cpt_init(rvu, BLKADDR_CPT0); + rvu_dbg_cpt_init(rvu, BLKADDR_CPT1); + rvu_dbg_mcs_init(rvu); +} + +void rvu_dbg_exit(struct rvu *rvu) +{ + debugfs_remove_recursive(rvu->rvu_dbg.root); +} + +#endif /* CONFIG_DEBUG_FS */ diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rvu_devlink.c b/drivers/net/ethernet/marvell/octeontx2/af/rvu_devlink.c new file mode 100644 index 000000000..b9a4efb95 --- /dev/null +++ b/drivers/net/ethernet/marvell/octeontx2/af/rvu_devlink.c @@ -0,0 +1,1632 @@ +// SPDX-License-Identifier: GPL-2.0 +/* Marvell RVU Admin Function Devlink + * + * Copyright (C) 2020 Marvell. + * + */ + +#include<linux/bitfield.h> + +#include "rvu.h" +#include "rvu_reg.h" +#include "rvu_struct.h" +#include "rvu_npc_hash.h" + +#define DRV_NAME "octeontx2-af" + +static int rvu_report_pair_start(struct devlink_fmsg *fmsg, const char *name) +{ + int err; + + err = devlink_fmsg_pair_nest_start(fmsg, name); + if (err) + return err; + + return devlink_fmsg_obj_nest_start(fmsg); +} + +static int rvu_report_pair_end(struct devlink_fmsg *fmsg) +{ + int err; + + err = devlink_fmsg_obj_nest_end(fmsg); + if (err) + return err; + + return devlink_fmsg_pair_nest_end(fmsg); +} + +static bool rvu_common_request_irq(struct rvu *rvu, int offset, + const char *name, irq_handler_t fn) +{ + struct rvu_devlink *rvu_dl = rvu->rvu_dl; + int rc; + + sprintf(&rvu->irq_name[offset * NAME_SIZE], "%s", name); + rc = request_irq(pci_irq_vector(rvu->pdev, offset), fn, 0, + &rvu->irq_name[offset * NAME_SIZE], rvu_dl); + if (rc) + dev_warn(rvu->dev, "Failed to register %s irq\n", name); + else + rvu->irq_allocated[offset] = true; + + return rvu->irq_allocated[offset]; +} + +static void rvu_nix_intr_work(struct work_struct *work) +{ + struct rvu_nix_health_reporters *rvu_nix_health_reporter; + + rvu_nix_health_reporter = container_of(work, struct rvu_nix_health_reporters, intr_work); + devlink_health_report(rvu_nix_health_reporter->rvu_hw_nix_intr_reporter, + "NIX_AF_RVU Error", + rvu_nix_health_reporter->nix_event_ctx); +} + +static irqreturn_t rvu_nix_af_rvu_intr_handler(int irq, void *rvu_irq) +{ + struct rvu_nix_event_ctx *nix_event_context; + struct rvu_devlink *rvu_dl = rvu_irq; + struct rvu *rvu; + int blkaddr; + u64 intr; + + rvu = rvu_dl->rvu; + blkaddr = rvu_get_blkaddr(rvu, BLKTYPE_NIX, 0); + if (blkaddr < 0) + return IRQ_NONE; + + nix_event_context = rvu_dl->rvu_nix_health_reporter->nix_event_ctx; + intr = rvu_read64(rvu, blkaddr, NIX_AF_RVU_INT); + nix_event_context->nix_af_rvu_int = intr; + + /* Clear interrupts */ + rvu_write64(rvu, blkaddr, NIX_AF_RVU_INT, intr); + rvu_write64(rvu, blkaddr, NIX_AF_RVU_INT_ENA_W1C, ~0ULL); + queue_work(rvu_dl->devlink_wq, &rvu_dl->rvu_nix_health_reporter->intr_work); + + return IRQ_HANDLED; +} + +static void rvu_nix_gen_work(struct work_struct *work) +{ + struct rvu_nix_health_reporters *rvu_nix_health_reporter; + + rvu_nix_health_reporter = container_of(work, struct rvu_nix_health_reporters, gen_work); + devlink_health_report(rvu_nix_health_reporter->rvu_hw_nix_gen_reporter, + "NIX_AF_GEN Error", + rvu_nix_health_reporter->nix_event_ctx); +} + +static irqreturn_t rvu_nix_af_rvu_gen_handler(int irq, void *rvu_irq) +{ + struct rvu_nix_event_ctx *nix_event_context; + struct rvu_devlink *rvu_dl = rvu_irq; + struct rvu *rvu; + int blkaddr; + u64 intr; + + rvu = rvu_dl->rvu; + blkaddr = rvu_get_blkaddr(rvu, BLKTYPE_NIX, 0); + if (blkaddr < 0) + return IRQ_NONE; + + nix_event_context = rvu_dl->rvu_nix_health_reporter->nix_event_ctx; + intr = rvu_read64(rvu, blkaddr, NIX_AF_GEN_INT); + nix_event_context->nix_af_rvu_gen = intr; + + /* Clear interrupts */ + rvu_write64(rvu, blkaddr, NIX_AF_GEN_INT, intr); + rvu_write64(rvu, blkaddr, NIX_AF_GEN_INT_ENA_W1C, ~0ULL); + queue_work(rvu_dl->devlink_wq, &rvu_dl->rvu_nix_health_reporter->gen_work); + + return IRQ_HANDLED; +} + +static void rvu_nix_err_work(struct work_struct *work) +{ + struct rvu_nix_health_reporters *rvu_nix_health_reporter; + + rvu_nix_health_reporter = container_of(work, struct rvu_nix_health_reporters, err_work); + devlink_health_report(rvu_nix_health_reporter->rvu_hw_nix_err_reporter, + "NIX_AF_ERR Error", + rvu_nix_health_reporter->nix_event_ctx); +} + +static irqreturn_t rvu_nix_af_rvu_err_handler(int irq, void *rvu_irq) +{ + struct rvu_nix_event_ctx *nix_event_context; + struct rvu_devlink *rvu_dl = rvu_irq; + struct rvu *rvu; + int blkaddr; + u64 intr; + + rvu = rvu_dl->rvu; + blkaddr = rvu_get_blkaddr(rvu, BLKTYPE_NIX, 0); + if (blkaddr < 0) + return IRQ_NONE; + + nix_event_context = rvu_dl->rvu_nix_health_reporter->nix_event_ctx; + intr = rvu_read64(rvu, blkaddr, NIX_AF_ERR_INT); + nix_event_context->nix_af_rvu_err = intr; + + /* Clear interrupts */ + rvu_write64(rvu, blkaddr, NIX_AF_ERR_INT, intr); + rvu_write64(rvu, blkaddr, NIX_AF_ERR_INT_ENA_W1C, ~0ULL); + queue_work(rvu_dl->devlink_wq, &rvu_dl->rvu_nix_health_reporter->err_work); + + return IRQ_HANDLED; +} + +static void rvu_nix_ras_work(struct work_struct *work) +{ + struct rvu_nix_health_reporters *rvu_nix_health_reporter; + + rvu_nix_health_reporter = container_of(work, struct rvu_nix_health_reporters, ras_work); + devlink_health_report(rvu_nix_health_reporter->rvu_hw_nix_ras_reporter, + "NIX_AF_RAS Error", + rvu_nix_health_reporter->nix_event_ctx); +} + +static irqreturn_t rvu_nix_af_rvu_ras_handler(int irq, void *rvu_irq) +{ + struct rvu_nix_event_ctx *nix_event_context; + struct rvu_devlink *rvu_dl = rvu_irq; + struct rvu *rvu; + int blkaddr; + u64 intr; + + rvu = rvu_dl->rvu; + blkaddr = rvu_get_blkaddr(rvu, BLKTYPE_NIX, 0); + if (blkaddr < 0) + return IRQ_NONE; + + nix_event_context = rvu_dl->rvu_nix_health_reporter->nix_event_ctx; + intr = rvu_read64(rvu, blkaddr, NIX_AF_ERR_INT); + nix_event_context->nix_af_rvu_ras = intr; + + /* Clear interrupts */ + rvu_write64(rvu, blkaddr, NIX_AF_RAS, intr); + rvu_write64(rvu, blkaddr, NIX_AF_RAS_ENA_W1C, ~0ULL); + queue_work(rvu_dl->devlink_wq, &rvu_dl->rvu_nix_health_reporter->ras_work); + + return IRQ_HANDLED; +} + +static void rvu_nix_unregister_interrupts(struct rvu *rvu) +{ + struct rvu_devlink *rvu_dl = rvu->rvu_dl; + int offs, i, blkaddr; + + blkaddr = rvu_get_blkaddr(rvu, BLKTYPE_NIX, 0); + if (blkaddr < 0) + return; + + offs = rvu_read64(rvu, blkaddr, NIX_PRIV_AF_INT_CFG) & 0x3ff; + if (!offs) + return; + + rvu_write64(rvu, blkaddr, NIX_AF_RVU_INT_ENA_W1C, ~0ULL); + rvu_write64(rvu, blkaddr, NIX_AF_GEN_INT_ENA_W1C, ~0ULL); + rvu_write64(rvu, blkaddr, NIX_AF_ERR_INT_ENA_W1C, ~0ULL); + rvu_write64(rvu, blkaddr, NIX_AF_RAS_ENA_W1C, ~0ULL); + + if (rvu->irq_allocated[offs + NIX_AF_INT_VEC_RVU]) { + free_irq(pci_irq_vector(rvu->pdev, offs + NIX_AF_INT_VEC_RVU), + rvu_dl); + rvu->irq_allocated[offs + NIX_AF_INT_VEC_RVU] = false; + } + + for (i = NIX_AF_INT_VEC_AF_ERR; i < NIX_AF_INT_VEC_CNT; i++) + if (rvu->irq_allocated[offs + i]) { + free_irq(pci_irq_vector(rvu->pdev, offs + i), rvu_dl); + rvu->irq_allocated[offs + i] = false; + } +} + +static int rvu_nix_register_interrupts(struct rvu *rvu) +{ + int blkaddr, base; + bool rc; + + blkaddr = rvu_get_blkaddr(rvu, BLKTYPE_NIX, 0); + if (blkaddr < 0) + return blkaddr; + + /* Get NIX AF MSIX vectors offset. */ + base = rvu_read64(rvu, blkaddr, NIX_PRIV_AF_INT_CFG) & 0x3ff; + if (!base) { + dev_warn(rvu->dev, + "Failed to get NIX%d NIX_AF_INT vector offsets\n", + blkaddr - BLKADDR_NIX0); + return 0; + } + /* Register and enable NIX_AF_RVU_INT interrupt */ + rc = rvu_common_request_irq(rvu, base + NIX_AF_INT_VEC_RVU, + "NIX_AF_RVU_INT", + rvu_nix_af_rvu_intr_handler); + if (!rc) + goto err; + rvu_write64(rvu, blkaddr, NIX_AF_RVU_INT_ENA_W1S, ~0ULL); + + /* Register and enable NIX_AF_GEN_INT interrupt */ + rc = rvu_common_request_irq(rvu, base + NIX_AF_INT_VEC_GEN, + "NIX_AF_GEN_INT", + rvu_nix_af_rvu_gen_handler); + if (!rc) + goto err; + rvu_write64(rvu, blkaddr, NIX_AF_GEN_INT_ENA_W1S, ~0ULL); + + /* Register and enable NIX_AF_ERR_INT interrupt */ + rc = rvu_common_request_irq(rvu, base + NIX_AF_INT_VEC_AF_ERR, + "NIX_AF_ERR_INT", + rvu_nix_af_rvu_err_handler); + if (!rc) + goto err; + rvu_write64(rvu, blkaddr, NIX_AF_ERR_INT_ENA_W1S, ~0ULL); + + /* Register and enable NIX_AF_RAS interrupt */ + rc = rvu_common_request_irq(rvu, base + NIX_AF_INT_VEC_POISON, + "NIX_AF_RAS", + rvu_nix_af_rvu_ras_handler); + if (!rc) + goto err; + rvu_write64(rvu, blkaddr, NIX_AF_RAS_ENA_W1S, ~0ULL); + + return 0; +err: + rvu_nix_unregister_interrupts(rvu); + return rc; +} + +static int rvu_nix_report_show(struct devlink_fmsg *fmsg, void *ctx, + enum nix_af_rvu_health health_reporter) +{ + struct rvu_nix_event_ctx *nix_event_context; + u64 intr_val; + int err; + + nix_event_context = ctx; + switch (health_reporter) { + case NIX_AF_RVU_INTR: + intr_val = nix_event_context->nix_af_rvu_int; + err = rvu_report_pair_start(fmsg, "NIX_AF_RVU"); + if (err) + return err; + err = devlink_fmsg_u64_pair_put(fmsg, "\tNIX RVU Interrupt Reg ", + nix_event_context->nix_af_rvu_int); + if (err) + return err; + if (intr_val & BIT_ULL(0)) { + err = devlink_fmsg_string_put(fmsg, "\n\tUnmap Slot Error"); + if (err) + return err; + } + err = rvu_report_pair_end(fmsg); + if (err) + return err; + break; + case NIX_AF_RVU_GEN: + intr_val = nix_event_context->nix_af_rvu_gen; + err = rvu_report_pair_start(fmsg, "NIX_AF_GENERAL"); + if (err) + return err; + err = devlink_fmsg_u64_pair_put(fmsg, "\tNIX General Interrupt Reg ", + nix_event_context->nix_af_rvu_gen); + if (err) + return err; + if (intr_val & BIT_ULL(0)) { + err = devlink_fmsg_string_put(fmsg, "\n\tRx multicast pkt drop"); + if (err) + return err; + } + if (intr_val & BIT_ULL(1)) { + err = devlink_fmsg_string_put(fmsg, "\n\tRx mirror pkt drop"); + if (err) + return err; + } + if (intr_val & BIT_ULL(4)) { + err = devlink_fmsg_string_put(fmsg, "\n\tSMQ flush done"); + if (err) + return err; + } + err = rvu_report_pair_end(fmsg); + if (err) + return err; + break; + case NIX_AF_RVU_ERR: + intr_val = nix_event_context->nix_af_rvu_err; + err = rvu_report_pair_start(fmsg, "NIX_AF_ERR"); + if (err) + return err; + err = devlink_fmsg_u64_pair_put(fmsg, "\tNIX Error Interrupt Reg ", + nix_event_context->nix_af_rvu_err); + if (err) + return err; + if (intr_val & BIT_ULL(14)) { + err = devlink_fmsg_string_put(fmsg, "\n\tFault on NIX_AQ_INST_S read"); + if (err) + return err; + } + if (intr_val & BIT_ULL(13)) { + err = devlink_fmsg_string_put(fmsg, "\n\tFault on NIX_AQ_RES_S write"); + if (err) + return err; + } + if (intr_val & BIT_ULL(12)) { + err = devlink_fmsg_string_put(fmsg, "\n\tAQ Doorbell Error"); + if (err) + return err; + } + if (intr_val & BIT_ULL(6)) { + err = devlink_fmsg_string_put(fmsg, "\n\tRx on unmapped PF_FUNC"); + if (err) + return err; + } + if (intr_val & BIT_ULL(5)) { + err = devlink_fmsg_string_put(fmsg, "\n\tRx multicast replication error"); + if (err) + return err; + } + if (intr_val & BIT_ULL(4)) { + err = devlink_fmsg_string_put(fmsg, "\n\tFault on NIX_RX_MCE_S read"); + if (err) + return err; + } + if (intr_val & BIT_ULL(3)) { + err = devlink_fmsg_string_put(fmsg, "\n\tFault on multicast WQE read"); + if (err) + return err; + } + if (intr_val & BIT_ULL(2)) { + err = devlink_fmsg_string_put(fmsg, "\n\tFault on mirror WQE read"); + if (err) + return err; + } + if (intr_val & BIT_ULL(1)) { + err = devlink_fmsg_string_put(fmsg, "\n\tFault on mirror pkt write"); + if (err) + return err; + } + if (intr_val & BIT_ULL(0)) { + err = devlink_fmsg_string_put(fmsg, "\n\tFault on multicast pkt write"); + if (err) + return err; + } + err = rvu_report_pair_end(fmsg); + if (err) + return err; + break; + case NIX_AF_RVU_RAS: + intr_val = nix_event_context->nix_af_rvu_err; + err = rvu_report_pair_start(fmsg, "NIX_AF_RAS"); + if (err) + return err; + err = devlink_fmsg_u64_pair_put(fmsg, "\tNIX RAS Interrupt Reg ", + nix_event_context->nix_af_rvu_err); + if (err) + return err; + err = devlink_fmsg_string_put(fmsg, "\n\tPoison Data on:"); + if (err) + return err; + if (intr_val & BIT_ULL(34)) { + err = devlink_fmsg_string_put(fmsg, "\n\tNIX_AQ_INST_S"); + if (err) + return err; + } + if (intr_val & BIT_ULL(33)) { + err = devlink_fmsg_string_put(fmsg, "\n\tNIX_AQ_RES_S"); + if (err) + return err; + } + if (intr_val & BIT_ULL(32)) { + err = devlink_fmsg_string_put(fmsg, "\n\tHW ctx"); + if (err) + return err; + } + if (intr_val & BIT_ULL(4)) { + err = devlink_fmsg_string_put(fmsg, "\n\tPacket from mirror buffer"); + if (err) + return err; + } + if (intr_val & BIT_ULL(3)) { + err = devlink_fmsg_string_put(fmsg, "\n\tPacket from multicast buffer"); + + if (err) + return err; + } + if (intr_val & BIT_ULL(2)) { + err = devlink_fmsg_string_put(fmsg, "\n\tWQE read from mirror buffer"); + if (err) + return err; + } + if (intr_val & BIT_ULL(1)) { + err = devlink_fmsg_string_put(fmsg, "\n\tWQE read from multicast buffer"); + if (err) + return err; + } + if (intr_val & BIT_ULL(0)) { + err = devlink_fmsg_string_put(fmsg, "\n\tNIX_RX_MCE_S read"); + if (err) + return err; + } + err = rvu_report_pair_end(fmsg); + if (err) + return err; + break; + default: + return -EINVAL; + } + + return 0; +} + +static int rvu_hw_nix_intr_dump(struct devlink_health_reporter *reporter, + struct devlink_fmsg *fmsg, void *ctx, + struct netlink_ext_ack *netlink_extack) +{ + struct rvu *rvu = devlink_health_reporter_priv(reporter); + struct rvu_devlink *rvu_dl = rvu->rvu_dl; + struct rvu_nix_event_ctx *nix_ctx; + + nix_ctx = rvu_dl->rvu_nix_health_reporter->nix_event_ctx; + + return ctx ? rvu_nix_report_show(fmsg, ctx, NIX_AF_RVU_INTR) : + rvu_nix_report_show(fmsg, nix_ctx, NIX_AF_RVU_INTR); +} + +static int rvu_hw_nix_intr_recover(struct devlink_health_reporter *reporter, + void *ctx, struct netlink_ext_ack *netlink_extack) +{ + struct rvu *rvu = devlink_health_reporter_priv(reporter); + struct rvu_nix_event_ctx *nix_event_ctx = ctx; + int blkaddr; + + blkaddr = rvu_get_blkaddr(rvu, BLKTYPE_NIX, 0); + if (blkaddr < 0) + return blkaddr; + + if (nix_event_ctx->nix_af_rvu_int) + rvu_write64(rvu, blkaddr, NIX_AF_RVU_INT_ENA_W1S, ~0ULL); + + return 0; +} + +static int rvu_hw_nix_gen_dump(struct devlink_health_reporter *reporter, + struct devlink_fmsg *fmsg, void *ctx, + struct netlink_ext_ack *netlink_extack) +{ + struct rvu *rvu = devlink_health_reporter_priv(reporter); + struct rvu_devlink *rvu_dl = rvu->rvu_dl; + struct rvu_nix_event_ctx *nix_ctx; + + nix_ctx = rvu_dl->rvu_nix_health_reporter->nix_event_ctx; + + return ctx ? rvu_nix_report_show(fmsg, ctx, NIX_AF_RVU_GEN) : + rvu_nix_report_show(fmsg, nix_ctx, NIX_AF_RVU_GEN); +} + +static int rvu_hw_nix_gen_recover(struct devlink_health_reporter *reporter, + void *ctx, struct netlink_ext_ack *netlink_extack) +{ + struct rvu *rvu = devlink_health_reporter_priv(reporter); + struct rvu_nix_event_ctx *nix_event_ctx = ctx; + int blkaddr; + + blkaddr = rvu_get_blkaddr(rvu, BLKTYPE_NIX, 0); + if (blkaddr < 0) + return blkaddr; + + if (nix_event_ctx->nix_af_rvu_gen) + rvu_write64(rvu, blkaddr, NIX_AF_GEN_INT_ENA_W1S, ~0ULL); + + return 0; +} + +static int rvu_hw_nix_err_dump(struct devlink_health_reporter *reporter, + struct devlink_fmsg *fmsg, void *ctx, + struct netlink_ext_ack *netlink_extack) +{ + struct rvu *rvu = devlink_health_reporter_priv(reporter); + struct rvu_devlink *rvu_dl = rvu->rvu_dl; + struct rvu_nix_event_ctx *nix_ctx; + + nix_ctx = rvu_dl->rvu_nix_health_reporter->nix_event_ctx; + + return ctx ? rvu_nix_report_show(fmsg, ctx, NIX_AF_RVU_ERR) : + rvu_nix_report_show(fmsg, nix_ctx, NIX_AF_RVU_ERR); +} + +static int rvu_hw_nix_err_recover(struct devlink_health_reporter *reporter, + void *ctx, struct netlink_ext_ack *netlink_extack) +{ + struct rvu *rvu = devlink_health_reporter_priv(reporter); + struct rvu_nix_event_ctx *nix_event_ctx = ctx; + int blkaddr; + + blkaddr = rvu_get_blkaddr(rvu, BLKTYPE_NIX, 0); + if (blkaddr < 0) + return blkaddr; + + if (nix_event_ctx->nix_af_rvu_err) + rvu_write64(rvu, blkaddr, NIX_AF_ERR_INT_ENA_W1S, ~0ULL); + + return 0; +} + +static int rvu_hw_nix_ras_dump(struct devlink_health_reporter *reporter, + struct devlink_fmsg *fmsg, void *ctx, + struct netlink_ext_ack *netlink_extack) +{ + struct rvu *rvu = devlink_health_reporter_priv(reporter); + struct rvu_devlink *rvu_dl = rvu->rvu_dl; + struct rvu_nix_event_ctx *nix_ctx; + + nix_ctx = rvu_dl->rvu_nix_health_reporter->nix_event_ctx; + + return ctx ? rvu_nix_report_show(fmsg, ctx, NIX_AF_RVU_RAS) : + rvu_nix_report_show(fmsg, nix_ctx, NIX_AF_RVU_RAS); +} + +static int rvu_hw_nix_ras_recover(struct devlink_health_reporter *reporter, + void *ctx, struct netlink_ext_ack *netlink_extack) +{ + struct rvu *rvu = devlink_health_reporter_priv(reporter); + struct rvu_nix_event_ctx *nix_event_ctx = ctx; + int blkaddr; + + blkaddr = rvu_get_blkaddr(rvu, BLKTYPE_NIX, 0); + if (blkaddr < 0) + return blkaddr; + + if (nix_event_ctx->nix_af_rvu_int) + rvu_write64(rvu, blkaddr, NIX_AF_RAS_ENA_W1S, ~0ULL); + + return 0; +} + +RVU_REPORTERS(hw_nix_intr); +RVU_REPORTERS(hw_nix_gen); +RVU_REPORTERS(hw_nix_err); +RVU_REPORTERS(hw_nix_ras); + +static void rvu_nix_health_reporters_destroy(struct rvu_devlink *rvu_dl); + +static int rvu_nix_register_reporters(struct rvu_devlink *rvu_dl) +{ + struct rvu_nix_health_reporters *rvu_reporters; + struct rvu_nix_event_ctx *nix_event_context; + struct rvu *rvu = rvu_dl->rvu; + + rvu_reporters = kzalloc(sizeof(*rvu_reporters), GFP_KERNEL); + if (!rvu_reporters) + return -ENOMEM; + + rvu_dl->rvu_nix_health_reporter = rvu_reporters; + nix_event_context = kzalloc(sizeof(*nix_event_context), GFP_KERNEL); + if (!nix_event_context) + return -ENOMEM; + + rvu_reporters->nix_event_ctx = nix_event_context; + rvu_reporters->rvu_hw_nix_intr_reporter = + devlink_health_reporter_create(rvu_dl->dl, &rvu_hw_nix_intr_reporter_ops, 0, rvu); + if (IS_ERR(rvu_reporters->rvu_hw_nix_intr_reporter)) { + dev_warn(rvu->dev, "Failed to create hw_nix_intr reporter, err=%ld\n", + PTR_ERR(rvu_reporters->rvu_hw_nix_intr_reporter)); + return PTR_ERR(rvu_reporters->rvu_hw_nix_intr_reporter); + } + + rvu_reporters->rvu_hw_nix_gen_reporter = + devlink_health_reporter_create(rvu_dl->dl, &rvu_hw_nix_gen_reporter_ops, 0, rvu); + if (IS_ERR(rvu_reporters->rvu_hw_nix_gen_reporter)) { + dev_warn(rvu->dev, "Failed to create hw_nix_gen reporter, err=%ld\n", + PTR_ERR(rvu_reporters->rvu_hw_nix_gen_reporter)); + return PTR_ERR(rvu_reporters->rvu_hw_nix_gen_reporter); + } + + rvu_reporters->rvu_hw_nix_err_reporter = + devlink_health_reporter_create(rvu_dl->dl, &rvu_hw_nix_err_reporter_ops, 0, rvu); + if (IS_ERR(rvu_reporters->rvu_hw_nix_err_reporter)) { + dev_warn(rvu->dev, "Failed to create hw_nix_err reporter, err=%ld\n", + PTR_ERR(rvu_reporters->rvu_hw_nix_err_reporter)); + return PTR_ERR(rvu_reporters->rvu_hw_nix_err_reporter); + } + + rvu_reporters->rvu_hw_nix_ras_reporter = + devlink_health_reporter_create(rvu_dl->dl, &rvu_hw_nix_ras_reporter_ops, 0, rvu); + if (IS_ERR(rvu_reporters->rvu_hw_nix_ras_reporter)) { + dev_warn(rvu->dev, "Failed to create hw_nix_ras reporter, err=%ld\n", + PTR_ERR(rvu_reporters->rvu_hw_nix_ras_reporter)); + return PTR_ERR(rvu_reporters->rvu_hw_nix_ras_reporter); + } + + rvu_dl->devlink_wq = create_workqueue("rvu_devlink_wq"); + if (!rvu_dl->devlink_wq) + return -ENOMEM; + + INIT_WORK(&rvu_reporters->intr_work, rvu_nix_intr_work); + INIT_WORK(&rvu_reporters->gen_work, rvu_nix_gen_work); + INIT_WORK(&rvu_reporters->err_work, rvu_nix_err_work); + INIT_WORK(&rvu_reporters->ras_work, rvu_nix_ras_work); + + return 0; +} + +static int rvu_nix_health_reporters_create(struct rvu_devlink *rvu_dl) +{ + struct rvu *rvu = rvu_dl->rvu; + int err; + + err = rvu_nix_register_reporters(rvu_dl); + if (err) { + dev_warn(rvu->dev, "Failed to create nix reporter, err =%d\n", + err); + return err; + } + rvu_nix_register_interrupts(rvu); + + return 0; +} + +static void rvu_nix_health_reporters_destroy(struct rvu_devlink *rvu_dl) +{ + struct rvu_nix_health_reporters *nix_reporters; + struct rvu *rvu = rvu_dl->rvu; + + nix_reporters = rvu_dl->rvu_nix_health_reporter; + + if (!nix_reporters->rvu_hw_nix_ras_reporter) + return; + if (!IS_ERR_OR_NULL(nix_reporters->rvu_hw_nix_intr_reporter)) + devlink_health_reporter_destroy(nix_reporters->rvu_hw_nix_intr_reporter); + + if (!IS_ERR_OR_NULL(nix_reporters->rvu_hw_nix_gen_reporter)) + devlink_health_reporter_destroy(nix_reporters->rvu_hw_nix_gen_reporter); + + if (!IS_ERR_OR_NULL(nix_reporters->rvu_hw_nix_err_reporter)) + devlink_health_reporter_destroy(nix_reporters->rvu_hw_nix_err_reporter); + + if (!IS_ERR_OR_NULL(nix_reporters->rvu_hw_nix_ras_reporter)) + devlink_health_reporter_destroy(nix_reporters->rvu_hw_nix_ras_reporter); + + rvu_nix_unregister_interrupts(rvu); + kfree(rvu_dl->rvu_nix_health_reporter->nix_event_ctx); + kfree(rvu_dl->rvu_nix_health_reporter); +} + +static void rvu_npa_intr_work(struct work_struct *work) +{ + struct rvu_npa_health_reporters *rvu_npa_health_reporter; + + rvu_npa_health_reporter = container_of(work, struct rvu_npa_health_reporters, intr_work); + devlink_health_report(rvu_npa_health_reporter->rvu_hw_npa_intr_reporter, + "NPA_AF_RVU Error", + rvu_npa_health_reporter->npa_event_ctx); +} + +static irqreturn_t rvu_npa_af_rvu_intr_handler(int irq, void *rvu_irq) +{ + struct rvu_npa_event_ctx *npa_event_context; + struct rvu_devlink *rvu_dl = rvu_irq; + struct rvu *rvu; + int blkaddr; + u64 intr; + + rvu = rvu_dl->rvu; + blkaddr = rvu_get_blkaddr(rvu, BLKTYPE_NPA, 0); + if (blkaddr < 0) + return IRQ_NONE; + + npa_event_context = rvu_dl->rvu_npa_health_reporter->npa_event_ctx; + intr = rvu_read64(rvu, blkaddr, NPA_AF_RVU_INT); + npa_event_context->npa_af_rvu_int = intr; + + /* Clear interrupts */ + rvu_write64(rvu, blkaddr, NPA_AF_RVU_INT, intr); + rvu_write64(rvu, blkaddr, NPA_AF_RVU_INT_ENA_W1C, ~0ULL); + queue_work(rvu_dl->devlink_wq, &rvu_dl->rvu_npa_health_reporter->intr_work); + + return IRQ_HANDLED; +} + +static void rvu_npa_gen_work(struct work_struct *work) +{ + struct rvu_npa_health_reporters *rvu_npa_health_reporter; + + rvu_npa_health_reporter = container_of(work, struct rvu_npa_health_reporters, gen_work); + devlink_health_report(rvu_npa_health_reporter->rvu_hw_npa_gen_reporter, + "NPA_AF_GEN Error", + rvu_npa_health_reporter->npa_event_ctx); +} + +static irqreturn_t rvu_npa_af_gen_intr_handler(int irq, void *rvu_irq) +{ + struct rvu_npa_event_ctx *npa_event_context; + struct rvu_devlink *rvu_dl = rvu_irq; + struct rvu *rvu; + int blkaddr; + u64 intr; + + rvu = rvu_dl->rvu; + blkaddr = rvu_get_blkaddr(rvu, BLKTYPE_NPA, 0); + if (blkaddr < 0) + return IRQ_NONE; + + npa_event_context = rvu_dl->rvu_npa_health_reporter->npa_event_ctx; + intr = rvu_read64(rvu, blkaddr, NPA_AF_GEN_INT); + npa_event_context->npa_af_rvu_gen = intr; + + /* Clear interrupts */ + rvu_write64(rvu, blkaddr, NPA_AF_GEN_INT, intr); + rvu_write64(rvu, blkaddr, NPA_AF_GEN_INT_ENA_W1C, ~0ULL); + queue_work(rvu_dl->devlink_wq, &rvu_dl->rvu_npa_health_reporter->gen_work); + + return IRQ_HANDLED; +} + +static void rvu_npa_err_work(struct work_struct *work) +{ + struct rvu_npa_health_reporters *rvu_npa_health_reporter; + + rvu_npa_health_reporter = container_of(work, struct rvu_npa_health_reporters, err_work); + devlink_health_report(rvu_npa_health_reporter->rvu_hw_npa_err_reporter, + "NPA_AF_ERR Error", + rvu_npa_health_reporter->npa_event_ctx); +} + +static irqreturn_t rvu_npa_af_err_intr_handler(int irq, void *rvu_irq) +{ + struct rvu_npa_event_ctx *npa_event_context; + struct rvu_devlink *rvu_dl = rvu_irq; + struct rvu *rvu; + int blkaddr; + u64 intr; + + rvu = rvu_dl->rvu; + blkaddr = rvu_get_blkaddr(rvu, BLKTYPE_NPA, 0); + if (blkaddr < 0) + return IRQ_NONE; + npa_event_context = rvu_dl->rvu_npa_health_reporter->npa_event_ctx; + intr = rvu_read64(rvu, blkaddr, NPA_AF_ERR_INT); + npa_event_context->npa_af_rvu_err = intr; + + /* Clear interrupts */ + rvu_write64(rvu, blkaddr, NPA_AF_ERR_INT, intr); + rvu_write64(rvu, blkaddr, NPA_AF_ERR_INT_ENA_W1C, ~0ULL); + queue_work(rvu_dl->devlink_wq, &rvu_dl->rvu_npa_health_reporter->err_work); + + return IRQ_HANDLED; +} + +static void rvu_npa_ras_work(struct work_struct *work) +{ + struct rvu_npa_health_reporters *rvu_npa_health_reporter; + + rvu_npa_health_reporter = container_of(work, struct rvu_npa_health_reporters, ras_work); + devlink_health_report(rvu_npa_health_reporter->rvu_hw_npa_ras_reporter, + "HW NPA_AF_RAS Error reported", + rvu_npa_health_reporter->npa_event_ctx); +} + +static irqreturn_t rvu_npa_af_ras_intr_handler(int irq, void *rvu_irq) +{ + struct rvu_npa_event_ctx *npa_event_context; + struct rvu_devlink *rvu_dl = rvu_irq; + struct rvu *rvu; + int blkaddr; + u64 intr; + + rvu = rvu_dl->rvu; + blkaddr = rvu_get_blkaddr(rvu, BLKTYPE_NPA, 0); + if (blkaddr < 0) + return IRQ_NONE; + + npa_event_context = rvu_dl->rvu_npa_health_reporter->npa_event_ctx; + intr = rvu_read64(rvu, blkaddr, NPA_AF_RAS); + npa_event_context->npa_af_rvu_ras = intr; + + /* Clear interrupts */ + rvu_write64(rvu, blkaddr, NPA_AF_RAS, intr); + rvu_write64(rvu, blkaddr, NPA_AF_RAS_ENA_W1C, ~0ULL); + queue_work(rvu_dl->devlink_wq, &rvu_dl->rvu_npa_health_reporter->ras_work); + + return IRQ_HANDLED; +} + +static void rvu_npa_unregister_interrupts(struct rvu *rvu) +{ + struct rvu_devlink *rvu_dl = rvu->rvu_dl; + int i, offs, blkaddr; + u64 reg; + + blkaddr = rvu_get_blkaddr(rvu, BLKTYPE_NPA, 0); + if (blkaddr < 0) + return; + + reg = rvu_read64(rvu, blkaddr, NPA_PRIV_AF_INT_CFG); + offs = reg & 0x3FF; + + rvu_write64(rvu, blkaddr, NPA_AF_RVU_INT_ENA_W1C, ~0ULL); + rvu_write64(rvu, blkaddr, NPA_AF_GEN_INT_ENA_W1C, ~0ULL); + rvu_write64(rvu, blkaddr, NPA_AF_ERR_INT_ENA_W1C, ~0ULL); + rvu_write64(rvu, blkaddr, NPA_AF_RAS_ENA_W1C, ~0ULL); + + for (i = 0; i < NPA_AF_INT_VEC_CNT; i++) + if (rvu->irq_allocated[offs + i]) { + free_irq(pci_irq_vector(rvu->pdev, offs + i), rvu_dl); + rvu->irq_allocated[offs + i] = false; + } +} + +static int rvu_npa_register_interrupts(struct rvu *rvu) +{ + int blkaddr, base; + bool rc; + + blkaddr = rvu_get_blkaddr(rvu, BLKTYPE_NPA, 0); + if (blkaddr < 0) + return blkaddr; + + /* Get NPA AF MSIX vectors offset. */ + base = rvu_read64(rvu, blkaddr, NPA_PRIV_AF_INT_CFG) & 0x3ff; + if (!base) { + dev_warn(rvu->dev, + "Failed to get NPA_AF_INT vector offsets\n"); + return 0; + } + + /* Register and enable NPA_AF_RVU_INT interrupt */ + rc = rvu_common_request_irq(rvu, base + NPA_AF_INT_VEC_RVU, + "NPA_AF_RVU_INT", + rvu_npa_af_rvu_intr_handler); + if (!rc) + goto err; + rvu_write64(rvu, blkaddr, NPA_AF_RVU_INT_ENA_W1S, ~0ULL); + + /* Register and enable NPA_AF_GEN_INT interrupt */ + rc = rvu_common_request_irq(rvu, base + NPA_AF_INT_VEC_GEN, + "NPA_AF_RVU_GEN", + rvu_npa_af_gen_intr_handler); + if (!rc) + goto err; + rvu_write64(rvu, blkaddr, NPA_AF_GEN_INT_ENA_W1S, ~0ULL); + + /* Register and enable NPA_AF_ERR_INT interrupt */ + rc = rvu_common_request_irq(rvu, base + NPA_AF_INT_VEC_AF_ERR, + "NPA_AF_ERR_INT", + rvu_npa_af_err_intr_handler); + if (!rc) + goto err; + rvu_write64(rvu, blkaddr, NPA_AF_ERR_INT_ENA_W1S, ~0ULL); + + /* Register and enable NPA_AF_RAS interrupt */ + rc = rvu_common_request_irq(rvu, base + NPA_AF_INT_VEC_POISON, + "NPA_AF_RAS", + rvu_npa_af_ras_intr_handler); + if (!rc) + goto err; + rvu_write64(rvu, blkaddr, NPA_AF_RAS_ENA_W1S, ~0ULL); + + return 0; +err: + rvu_npa_unregister_interrupts(rvu); + return rc; +} + +static int rvu_npa_report_show(struct devlink_fmsg *fmsg, void *ctx, + enum npa_af_rvu_health health_reporter) +{ + struct rvu_npa_event_ctx *npa_event_context; + unsigned int alloc_dis, free_dis; + u64 intr_val; + int err; + + npa_event_context = ctx; + switch (health_reporter) { + case NPA_AF_RVU_GEN: + intr_val = npa_event_context->npa_af_rvu_gen; + err = rvu_report_pair_start(fmsg, "NPA_AF_GENERAL"); + if (err) + return err; + err = devlink_fmsg_u64_pair_put(fmsg, "\tNPA General Interrupt Reg ", + npa_event_context->npa_af_rvu_gen); + if (err) + return err; + if (intr_val & BIT_ULL(32)) { + err = devlink_fmsg_string_put(fmsg, "\n\tUnmap PF Error"); + if (err) + return err; + } + + free_dis = FIELD_GET(GENMASK(15, 0), intr_val); + if (free_dis & BIT(NPA_INPQ_NIX0_RX)) { + err = devlink_fmsg_string_put(fmsg, "\n\tNIX0: free disabled RX"); + if (err) + return err; + } + if (free_dis & BIT(NPA_INPQ_NIX0_TX)) { + err = devlink_fmsg_string_put(fmsg, "\n\tNIX0:free disabled TX"); + if (err) + return err; + } + if (free_dis & BIT(NPA_INPQ_NIX1_RX)) { + err = devlink_fmsg_string_put(fmsg, "\n\tNIX1: free disabled RX"); + if (err) + return err; + } + if (free_dis & BIT(NPA_INPQ_NIX1_TX)) { + err = devlink_fmsg_string_put(fmsg, "\n\tNIX1:free disabled TX"); + if (err) + return err; + } + if (free_dis & BIT(NPA_INPQ_SSO)) { + err = devlink_fmsg_string_put(fmsg, "\n\tFree Disabled for SSO"); + if (err) + return err; + } + if (free_dis & BIT(NPA_INPQ_TIM)) { + err = devlink_fmsg_string_put(fmsg, "\n\tFree Disabled for TIM"); + if (err) + return err; + } + if (free_dis & BIT(NPA_INPQ_DPI)) { + err = devlink_fmsg_string_put(fmsg, "\n\tFree Disabled for DPI"); + if (err) + return err; + } + if (free_dis & BIT(NPA_INPQ_AURA_OP)) { + err = devlink_fmsg_string_put(fmsg, "\n\tFree Disabled for AURA"); + if (err) + return err; + } + + alloc_dis = FIELD_GET(GENMASK(31, 16), intr_val); + if (alloc_dis & BIT(NPA_INPQ_NIX0_RX)) { + err = devlink_fmsg_string_put(fmsg, "\n\tNIX0: alloc disabled RX"); + if (err) + return err; + } + if (alloc_dis & BIT(NPA_INPQ_NIX0_TX)) { + err = devlink_fmsg_string_put(fmsg, "\n\tNIX0:alloc disabled TX"); + if (err) + return err; + } + if (alloc_dis & BIT(NPA_INPQ_NIX1_RX)) { + err = devlink_fmsg_string_put(fmsg, "\n\tNIX1: alloc disabled RX"); + if (err) + return err; + } + if (alloc_dis & BIT(NPA_INPQ_NIX1_TX)) { + err = devlink_fmsg_string_put(fmsg, "\n\tNIX1:alloc disabled TX"); + if (err) + return err; + } + if (alloc_dis & BIT(NPA_INPQ_SSO)) { + err = devlink_fmsg_string_put(fmsg, "\n\tAlloc Disabled for SSO"); + if (err) + return err; + } + if (alloc_dis & BIT(NPA_INPQ_TIM)) { + err = devlink_fmsg_string_put(fmsg, "\n\tAlloc Disabled for TIM"); + if (err) + return err; + } + if (alloc_dis & BIT(NPA_INPQ_DPI)) { + err = devlink_fmsg_string_put(fmsg, "\n\tAlloc Disabled for DPI"); + if (err) + return err; + } + if (alloc_dis & BIT(NPA_INPQ_AURA_OP)) { + err = devlink_fmsg_string_put(fmsg, "\n\tAlloc Disabled for AURA"); + if (err) + return err; + } + err = rvu_report_pair_end(fmsg); + if (err) + return err; + break; + case NPA_AF_RVU_ERR: + err = rvu_report_pair_start(fmsg, "NPA_AF_ERR"); + if (err) + return err; + err = devlink_fmsg_u64_pair_put(fmsg, "\tNPA Error Interrupt Reg ", + npa_event_context->npa_af_rvu_err); + if (err) + return err; + + if (npa_event_context->npa_af_rvu_err & BIT_ULL(14)) { + err = devlink_fmsg_string_put(fmsg, "\n\tFault on NPA_AQ_INST_S read"); + if (err) + return err; + } + if (npa_event_context->npa_af_rvu_err & BIT_ULL(13)) { + err = devlink_fmsg_string_put(fmsg, "\n\tFault on NPA_AQ_RES_S write"); + if (err) + return err; + } + if (npa_event_context->npa_af_rvu_err & BIT_ULL(12)) { + err = devlink_fmsg_string_put(fmsg, "\n\tAQ Doorbell Error"); + if (err) + return err; + } + err = rvu_report_pair_end(fmsg); + if (err) + return err; + break; + case NPA_AF_RVU_RAS: + err = rvu_report_pair_start(fmsg, "NPA_AF_RVU_RAS"); + if (err) + return err; + err = devlink_fmsg_u64_pair_put(fmsg, "\tNPA RAS Interrupt Reg ", + npa_event_context->npa_af_rvu_ras); + if (err) + return err; + if (npa_event_context->npa_af_rvu_ras & BIT_ULL(34)) { + err = devlink_fmsg_string_put(fmsg, "\n\tPoison data on NPA_AQ_INST_S"); + if (err) + return err; + } + if (npa_event_context->npa_af_rvu_ras & BIT_ULL(33)) { + err = devlink_fmsg_string_put(fmsg, "\n\tPoison data on NPA_AQ_RES_S"); + if (err) + return err; + } + if (npa_event_context->npa_af_rvu_ras & BIT_ULL(32)) { + err = devlink_fmsg_string_put(fmsg, "\n\tPoison data on HW context"); + if (err) + return err; + } + err = rvu_report_pair_end(fmsg); + if (err) + return err; + break; + case NPA_AF_RVU_INTR: + err = rvu_report_pair_start(fmsg, "NPA_AF_RVU"); + if (err) + return err; + err = devlink_fmsg_u64_pair_put(fmsg, "\tNPA RVU Interrupt Reg ", + npa_event_context->npa_af_rvu_int); + if (err) + return err; + if (npa_event_context->npa_af_rvu_int & BIT_ULL(0)) { + err = devlink_fmsg_string_put(fmsg, "\n\tUnmap Slot Error"); + if (err) + return err; + } + return rvu_report_pair_end(fmsg); + default: + return -EINVAL; + } + + return 0; +} + +static int rvu_hw_npa_intr_dump(struct devlink_health_reporter *reporter, + struct devlink_fmsg *fmsg, void *ctx, + struct netlink_ext_ack *netlink_extack) +{ + struct rvu *rvu = devlink_health_reporter_priv(reporter); + struct rvu_devlink *rvu_dl = rvu->rvu_dl; + struct rvu_npa_event_ctx *npa_ctx; + + npa_ctx = rvu_dl->rvu_npa_health_reporter->npa_event_ctx; + + return ctx ? rvu_npa_report_show(fmsg, ctx, NPA_AF_RVU_INTR) : + rvu_npa_report_show(fmsg, npa_ctx, NPA_AF_RVU_INTR); +} + +static int rvu_hw_npa_intr_recover(struct devlink_health_reporter *reporter, + void *ctx, struct netlink_ext_ack *netlink_extack) +{ + struct rvu *rvu = devlink_health_reporter_priv(reporter); + struct rvu_npa_event_ctx *npa_event_ctx = ctx; + int blkaddr; + + blkaddr = rvu_get_blkaddr(rvu, BLKTYPE_NPA, 0); + if (blkaddr < 0) + return blkaddr; + + if (npa_event_ctx->npa_af_rvu_int) + rvu_write64(rvu, blkaddr, NPA_AF_RVU_INT_ENA_W1S, ~0ULL); + + return 0; +} + +static int rvu_hw_npa_gen_dump(struct devlink_health_reporter *reporter, + struct devlink_fmsg *fmsg, void *ctx, + struct netlink_ext_ack *netlink_extack) +{ + struct rvu *rvu = devlink_health_reporter_priv(reporter); + struct rvu_devlink *rvu_dl = rvu->rvu_dl; + struct rvu_npa_event_ctx *npa_ctx; + + npa_ctx = rvu_dl->rvu_npa_health_reporter->npa_event_ctx; + + return ctx ? rvu_npa_report_show(fmsg, ctx, NPA_AF_RVU_GEN) : + rvu_npa_report_show(fmsg, npa_ctx, NPA_AF_RVU_GEN); +} + +static int rvu_hw_npa_gen_recover(struct devlink_health_reporter *reporter, + void *ctx, struct netlink_ext_ack *netlink_extack) +{ + struct rvu *rvu = devlink_health_reporter_priv(reporter); + struct rvu_npa_event_ctx *npa_event_ctx = ctx; + int blkaddr; + + blkaddr = rvu_get_blkaddr(rvu, BLKTYPE_NPA, 0); + if (blkaddr < 0) + return blkaddr; + + if (npa_event_ctx->npa_af_rvu_gen) + rvu_write64(rvu, blkaddr, NPA_AF_GEN_INT_ENA_W1S, ~0ULL); + + return 0; +} + +static int rvu_hw_npa_err_dump(struct devlink_health_reporter *reporter, + struct devlink_fmsg *fmsg, void *ctx, + struct netlink_ext_ack *netlink_extack) +{ + struct rvu *rvu = devlink_health_reporter_priv(reporter); + struct rvu_devlink *rvu_dl = rvu->rvu_dl; + struct rvu_npa_event_ctx *npa_ctx; + + npa_ctx = rvu_dl->rvu_npa_health_reporter->npa_event_ctx; + + return ctx ? rvu_npa_report_show(fmsg, ctx, NPA_AF_RVU_ERR) : + rvu_npa_report_show(fmsg, npa_ctx, NPA_AF_RVU_ERR); +} + +static int rvu_hw_npa_err_recover(struct devlink_health_reporter *reporter, + void *ctx, struct netlink_ext_ack *netlink_extack) +{ + struct rvu *rvu = devlink_health_reporter_priv(reporter); + struct rvu_npa_event_ctx *npa_event_ctx = ctx; + int blkaddr; + + blkaddr = rvu_get_blkaddr(rvu, BLKTYPE_NPA, 0); + if (blkaddr < 0) + return blkaddr; + + if (npa_event_ctx->npa_af_rvu_err) + rvu_write64(rvu, blkaddr, NPA_AF_ERR_INT_ENA_W1S, ~0ULL); + + return 0; +} + +static int rvu_hw_npa_ras_dump(struct devlink_health_reporter *reporter, + struct devlink_fmsg *fmsg, void *ctx, + struct netlink_ext_ack *netlink_extack) +{ + struct rvu *rvu = devlink_health_reporter_priv(reporter); + struct rvu_devlink *rvu_dl = rvu->rvu_dl; + struct rvu_npa_event_ctx *npa_ctx; + + npa_ctx = rvu_dl->rvu_npa_health_reporter->npa_event_ctx; + + return ctx ? rvu_npa_report_show(fmsg, ctx, NPA_AF_RVU_RAS) : + rvu_npa_report_show(fmsg, npa_ctx, NPA_AF_RVU_RAS); +} + +static int rvu_hw_npa_ras_recover(struct devlink_health_reporter *reporter, + void *ctx, struct netlink_ext_ack *netlink_extack) +{ + struct rvu *rvu = devlink_health_reporter_priv(reporter); + struct rvu_npa_event_ctx *npa_event_ctx = ctx; + int blkaddr; + + blkaddr = rvu_get_blkaddr(rvu, BLKTYPE_NPA, 0); + if (blkaddr < 0) + return blkaddr; + + if (npa_event_ctx->npa_af_rvu_ras) + rvu_write64(rvu, blkaddr, NPA_AF_RAS_ENA_W1S, ~0ULL); + + return 0; +} + +RVU_REPORTERS(hw_npa_intr); +RVU_REPORTERS(hw_npa_gen); +RVU_REPORTERS(hw_npa_err); +RVU_REPORTERS(hw_npa_ras); + +static void rvu_npa_health_reporters_destroy(struct rvu_devlink *rvu_dl); + +static int rvu_npa_register_reporters(struct rvu_devlink *rvu_dl) +{ + struct rvu_npa_health_reporters *rvu_reporters; + struct rvu_npa_event_ctx *npa_event_context; + struct rvu *rvu = rvu_dl->rvu; + + rvu_reporters = kzalloc(sizeof(*rvu_reporters), GFP_KERNEL); + if (!rvu_reporters) + return -ENOMEM; + + rvu_dl->rvu_npa_health_reporter = rvu_reporters; + npa_event_context = kzalloc(sizeof(*npa_event_context), GFP_KERNEL); + if (!npa_event_context) + return -ENOMEM; + + rvu_reporters->npa_event_ctx = npa_event_context; + rvu_reporters->rvu_hw_npa_intr_reporter = + devlink_health_reporter_create(rvu_dl->dl, &rvu_hw_npa_intr_reporter_ops, 0, rvu); + if (IS_ERR(rvu_reporters->rvu_hw_npa_intr_reporter)) { + dev_warn(rvu->dev, "Failed to create hw_npa_intr reporter, err=%ld\n", + PTR_ERR(rvu_reporters->rvu_hw_npa_intr_reporter)); + return PTR_ERR(rvu_reporters->rvu_hw_npa_intr_reporter); + } + + rvu_reporters->rvu_hw_npa_gen_reporter = + devlink_health_reporter_create(rvu_dl->dl, &rvu_hw_npa_gen_reporter_ops, 0, rvu); + if (IS_ERR(rvu_reporters->rvu_hw_npa_gen_reporter)) { + dev_warn(rvu->dev, "Failed to create hw_npa_gen reporter, err=%ld\n", + PTR_ERR(rvu_reporters->rvu_hw_npa_gen_reporter)); + return PTR_ERR(rvu_reporters->rvu_hw_npa_gen_reporter); + } + + rvu_reporters->rvu_hw_npa_err_reporter = + devlink_health_reporter_create(rvu_dl->dl, &rvu_hw_npa_err_reporter_ops, 0, rvu); + if (IS_ERR(rvu_reporters->rvu_hw_npa_err_reporter)) { + dev_warn(rvu->dev, "Failed to create hw_npa_err reporter, err=%ld\n", + PTR_ERR(rvu_reporters->rvu_hw_npa_err_reporter)); + return PTR_ERR(rvu_reporters->rvu_hw_npa_err_reporter); + } + + rvu_reporters->rvu_hw_npa_ras_reporter = + devlink_health_reporter_create(rvu_dl->dl, &rvu_hw_npa_ras_reporter_ops, 0, rvu); + if (IS_ERR(rvu_reporters->rvu_hw_npa_ras_reporter)) { + dev_warn(rvu->dev, "Failed to create hw_npa_ras reporter, err=%ld\n", + PTR_ERR(rvu_reporters->rvu_hw_npa_ras_reporter)); + return PTR_ERR(rvu_reporters->rvu_hw_npa_ras_reporter); + } + + rvu_dl->devlink_wq = create_workqueue("rvu_devlink_wq"); + if (!rvu_dl->devlink_wq) + return -ENOMEM; + + INIT_WORK(&rvu_reporters->intr_work, rvu_npa_intr_work); + INIT_WORK(&rvu_reporters->err_work, rvu_npa_err_work); + INIT_WORK(&rvu_reporters->gen_work, rvu_npa_gen_work); + INIT_WORK(&rvu_reporters->ras_work, rvu_npa_ras_work); + + return 0; +} + +static int rvu_npa_health_reporters_create(struct rvu_devlink *rvu_dl) +{ + struct rvu *rvu = rvu_dl->rvu; + int err; + + err = rvu_npa_register_reporters(rvu_dl); + if (err) { + dev_warn(rvu->dev, "Failed to create npa reporter, err =%d\n", + err); + return err; + } + rvu_npa_register_interrupts(rvu); + + return 0; +} + +static void rvu_npa_health_reporters_destroy(struct rvu_devlink *rvu_dl) +{ + struct rvu_npa_health_reporters *npa_reporters; + struct rvu *rvu = rvu_dl->rvu; + + npa_reporters = rvu_dl->rvu_npa_health_reporter; + + if (!npa_reporters->rvu_hw_npa_ras_reporter) + return; + if (!IS_ERR_OR_NULL(npa_reporters->rvu_hw_npa_intr_reporter)) + devlink_health_reporter_destroy(npa_reporters->rvu_hw_npa_intr_reporter); + + if (!IS_ERR_OR_NULL(npa_reporters->rvu_hw_npa_gen_reporter)) + devlink_health_reporter_destroy(npa_reporters->rvu_hw_npa_gen_reporter); + + if (!IS_ERR_OR_NULL(npa_reporters->rvu_hw_npa_err_reporter)) + devlink_health_reporter_destroy(npa_reporters->rvu_hw_npa_err_reporter); + + if (!IS_ERR_OR_NULL(npa_reporters->rvu_hw_npa_ras_reporter)) + devlink_health_reporter_destroy(npa_reporters->rvu_hw_npa_ras_reporter); + + rvu_npa_unregister_interrupts(rvu); + kfree(rvu_dl->rvu_npa_health_reporter->npa_event_ctx); + kfree(rvu_dl->rvu_npa_health_reporter); +} + +static int rvu_health_reporters_create(struct rvu *rvu) +{ + struct rvu_devlink *rvu_dl; + int err; + + rvu_dl = rvu->rvu_dl; + err = rvu_npa_health_reporters_create(rvu_dl); + if (err) + return err; + + return rvu_nix_health_reporters_create(rvu_dl); +} + +static void rvu_health_reporters_destroy(struct rvu *rvu) +{ + struct rvu_devlink *rvu_dl; + + if (!rvu->rvu_dl) + return; + + rvu_dl = rvu->rvu_dl; + rvu_npa_health_reporters_destroy(rvu_dl); + rvu_nix_health_reporters_destroy(rvu_dl); +} + +/* Devlink Params APIs */ +static int rvu_af_dl_dwrr_mtu_validate(struct devlink *devlink, u32 id, + union devlink_param_value val, + struct netlink_ext_ack *extack) +{ + struct rvu_devlink *rvu_dl = devlink_priv(devlink); + struct rvu *rvu = rvu_dl->rvu; + int dwrr_mtu = val.vu32; + struct nix_txsch *txsch; + struct nix_hw *nix_hw; + + if (!rvu->hw->cap.nix_common_dwrr_mtu) { + NL_SET_ERR_MSG_MOD(extack, + "Setting DWRR_MTU is not supported on this silicon"); + return -EOPNOTSUPP; + } + + if ((dwrr_mtu > 65536 || !is_power_of_2(dwrr_mtu)) && + (dwrr_mtu != 9728 && dwrr_mtu != 10240)) { + NL_SET_ERR_MSG_MOD(extack, + "Invalid, supported MTUs are 0,2,4,8.16,32,64....4K,8K,32K,64K and 9728, 10240"); + return -EINVAL; + } + + nix_hw = get_nix_hw(rvu->hw, BLKADDR_NIX0); + if (!nix_hw) + return -ENODEV; + + txsch = &nix_hw->txsch[NIX_TXSCH_LVL_SMQ]; + if (rvu_rsrc_free_count(&txsch->schq) != txsch->schq.max) { + NL_SET_ERR_MSG_MOD(extack, + "Changing DWRR MTU is not supported when there are active NIXLFs"); + NL_SET_ERR_MSG_MOD(extack, + "Make sure none of the PF/VF interfaces are initialized and retry"); + return -EOPNOTSUPP; + } + + return 0; +} + +static int rvu_af_dl_dwrr_mtu_set(struct devlink *devlink, u32 id, + struct devlink_param_gset_ctx *ctx) +{ + struct rvu_devlink *rvu_dl = devlink_priv(devlink); + struct rvu *rvu = rvu_dl->rvu; + u64 dwrr_mtu; + + dwrr_mtu = convert_bytes_to_dwrr_mtu(ctx->val.vu32); + rvu_write64(rvu, BLKADDR_NIX0, NIX_AF_DWRR_RPM_MTU, dwrr_mtu); + + return 0; +} + +static int rvu_af_dl_dwrr_mtu_get(struct devlink *devlink, u32 id, + struct devlink_param_gset_ctx *ctx) +{ + struct rvu_devlink *rvu_dl = devlink_priv(devlink); + struct rvu *rvu = rvu_dl->rvu; + u64 dwrr_mtu; + + if (!rvu->hw->cap.nix_common_dwrr_mtu) + return -EOPNOTSUPP; + + dwrr_mtu = rvu_read64(rvu, BLKADDR_NIX0, NIX_AF_DWRR_RPM_MTU); + ctx->val.vu32 = convert_dwrr_mtu_to_bytes(dwrr_mtu); + + return 0; +} + +enum rvu_af_dl_param_id { + RVU_AF_DEVLINK_PARAM_ID_BASE = DEVLINK_PARAM_GENERIC_ID_MAX, + RVU_AF_DEVLINK_PARAM_ID_DWRR_MTU, + RVU_AF_DEVLINK_PARAM_ID_NPC_EXACT_FEATURE_DISABLE, +}; + +static int rvu_af_npc_exact_feature_get(struct devlink *devlink, u32 id, + struct devlink_param_gset_ctx *ctx) +{ + struct rvu_devlink *rvu_dl = devlink_priv(devlink); + struct rvu *rvu = rvu_dl->rvu; + bool enabled; + + enabled = rvu_npc_exact_has_match_table(rvu); + + snprintf(ctx->val.vstr, sizeof(ctx->val.vstr), "%s", + enabled ? "enabled" : "disabled"); + + return 0; +} + +static int rvu_af_npc_exact_feature_disable(struct devlink *devlink, u32 id, + struct devlink_param_gset_ctx *ctx) +{ + struct rvu_devlink *rvu_dl = devlink_priv(devlink); + struct rvu *rvu = rvu_dl->rvu; + + rvu_npc_exact_disable_feature(rvu); + + return 0; +} + +static int rvu_af_npc_exact_feature_validate(struct devlink *devlink, u32 id, + union devlink_param_value val, + struct netlink_ext_ack *extack) +{ + struct rvu_devlink *rvu_dl = devlink_priv(devlink); + struct rvu *rvu = rvu_dl->rvu; + u64 enable; + + if (kstrtoull(val.vstr, 10, &enable)) { + NL_SET_ERR_MSG_MOD(extack, + "Only 1 value is supported"); + return -EINVAL; + } + + if (enable != 1) { + NL_SET_ERR_MSG_MOD(extack, + "Only disabling exact match feature is supported"); + return -EINVAL; + } + + if (rvu_npc_exact_can_disable_feature(rvu)) + return 0; + + NL_SET_ERR_MSG_MOD(extack, + "Can't disable exact match feature; Please try before any configuration"); + return -EFAULT; +} + +static const struct devlink_param rvu_af_dl_params[] = { + DEVLINK_PARAM_DRIVER(RVU_AF_DEVLINK_PARAM_ID_DWRR_MTU, + "dwrr_mtu", DEVLINK_PARAM_TYPE_U32, + BIT(DEVLINK_PARAM_CMODE_RUNTIME), + rvu_af_dl_dwrr_mtu_get, rvu_af_dl_dwrr_mtu_set, + rvu_af_dl_dwrr_mtu_validate), +}; + +static const struct devlink_param rvu_af_dl_param_exact_match[] = { + DEVLINK_PARAM_DRIVER(RVU_AF_DEVLINK_PARAM_ID_NPC_EXACT_FEATURE_DISABLE, + "npc_exact_feature_disable", DEVLINK_PARAM_TYPE_STRING, + BIT(DEVLINK_PARAM_CMODE_RUNTIME), + rvu_af_npc_exact_feature_get, + rvu_af_npc_exact_feature_disable, + rvu_af_npc_exact_feature_validate), +}; + +/* Devlink switch mode */ +static int rvu_devlink_eswitch_mode_get(struct devlink *devlink, u16 *mode) +{ + struct rvu_devlink *rvu_dl = devlink_priv(devlink); + struct rvu *rvu = rvu_dl->rvu; + struct rvu_switch *rswitch; + + rswitch = &rvu->rswitch; + *mode = rswitch->mode; + + return 0; +} + +static int rvu_devlink_eswitch_mode_set(struct devlink *devlink, u16 mode, + struct netlink_ext_ack *extack) +{ + struct rvu_devlink *rvu_dl = devlink_priv(devlink); + struct rvu *rvu = rvu_dl->rvu; + struct rvu_switch *rswitch; + + rswitch = &rvu->rswitch; + switch (mode) { + case DEVLINK_ESWITCH_MODE_LEGACY: + case DEVLINK_ESWITCH_MODE_SWITCHDEV: + if (rswitch->mode == mode) + return 0; + rswitch->mode = mode; + if (mode == DEVLINK_ESWITCH_MODE_SWITCHDEV) + rvu_switch_enable(rvu); + else + rvu_switch_disable(rvu); + break; + default: + return -EINVAL; + } + + return 0; +} + +static int rvu_devlink_info_get(struct devlink *devlink, struct devlink_info_req *req, + struct netlink_ext_ack *extack) +{ + return devlink_info_driver_name_put(req, DRV_NAME); +} + +static const struct devlink_ops rvu_devlink_ops = { + .info_get = rvu_devlink_info_get, + .eswitch_mode_get = rvu_devlink_eswitch_mode_get, + .eswitch_mode_set = rvu_devlink_eswitch_mode_set, +}; + +int rvu_register_dl(struct rvu *rvu) +{ + struct rvu_devlink *rvu_dl; + struct devlink *dl; + int err; + + dl = devlink_alloc(&rvu_devlink_ops, sizeof(struct rvu_devlink), + rvu->dev); + if (!dl) { + dev_warn(rvu->dev, "devlink_alloc failed\n"); + return -ENOMEM; + } + + rvu_dl = devlink_priv(dl); + rvu_dl->dl = dl; + rvu_dl->rvu = rvu; + rvu->rvu_dl = rvu_dl; + + err = rvu_health_reporters_create(rvu); + if (err) { + dev_err(rvu->dev, + "devlink health reporter creation failed with error %d\n", err); + goto err_dl_health; + } + + err = devlink_params_register(dl, rvu_af_dl_params, ARRAY_SIZE(rvu_af_dl_params)); + if (err) { + dev_err(rvu->dev, + "devlink params register failed with error %d", err); + goto err_dl_health; + } + + /* Register exact match devlink only for CN10K-B */ + if (!rvu_npc_exact_has_match_table(rvu)) + goto done; + + err = devlink_params_register(dl, rvu_af_dl_param_exact_match, + ARRAY_SIZE(rvu_af_dl_param_exact_match)); + if (err) { + dev_err(rvu->dev, + "devlink exact match params register failed with error %d", err); + goto err_dl_exact_match; + } + +done: + devlink_register(dl); + return 0; + +err_dl_exact_match: + devlink_params_unregister(dl, rvu_af_dl_params, ARRAY_SIZE(rvu_af_dl_params)); + +err_dl_health: + rvu_health_reporters_destroy(rvu); + devlink_free(dl); + return err; +} + +void rvu_unregister_dl(struct rvu *rvu) +{ + struct rvu_devlink *rvu_dl = rvu->rvu_dl; + struct devlink *dl = rvu_dl->dl; + + devlink_unregister(dl); + + devlink_params_unregister(dl, rvu_af_dl_params, ARRAY_SIZE(rvu_af_dl_params)); + + /* Unregister exact match devlink only for CN10K-B */ + if (rvu_npc_exact_has_match_table(rvu)) + devlink_params_unregister(dl, rvu_af_dl_param_exact_match, + ARRAY_SIZE(rvu_af_dl_param_exact_match)); + + rvu_health_reporters_destroy(rvu); + devlink_free(dl); +} diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rvu_devlink.h b/drivers/net/ethernet/marvell/octeontx2/af/rvu_devlink.h new file mode 100644 index 000000000..51efe88dc --- /dev/null +++ b/drivers/net/ethernet/marvell/octeontx2/af/rvu_devlink.h @@ -0,0 +1,82 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* Marvell RVU Admin Function Devlink + * + * Copyright (C) 2020 Marvell. + * + */ + +#ifndef RVU_DEVLINK_H +#define RVU_DEVLINK_H + +#define RVU_REPORTERS(_name) \ +static const struct devlink_health_reporter_ops rvu_ ## _name ## _reporter_ops = { \ + .name = #_name, \ + .recover = rvu_ ## _name ## _recover, \ + .dump = rvu_ ## _name ## _dump, \ +} + +enum npa_af_rvu_health { + NPA_AF_RVU_INTR, + NPA_AF_RVU_GEN, + NPA_AF_RVU_ERR, + NPA_AF_RVU_RAS, +}; + +struct rvu_npa_event_ctx { + u64 npa_af_rvu_int; + u64 npa_af_rvu_gen; + u64 npa_af_rvu_err; + u64 npa_af_rvu_ras; +}; + +struct rvu_npa_health_reporters { + struct rvu_npa_event_ctx *npa_event_ctx; + struct devlink_health_reporter *rvu_hw_npa_intr_reporter; + struct work_struct intr_work; + struct devlink_health_reporter *rvu_hw_npa_gen_reporter; + struct work_struct gen_work; + struct devlink_health_reporter *rvu_hw_npa_err_reporter; + struct work_struct err_work; + struct devlink_health_reporter *rvu_hw_npa_ras_reporter; + struct work_struct ras_work; +}; + +enum nix_af_rvu_health { + NIX_AF_RVU_INTR, + NIX_AF_RVU_GEN, + NIX_AF_RVU_ERR, + NIX_AF_RVU_RAS, +}; + +struct rvu_nix_event_ctx { + u64 nix_af_rvu_int; + u64 nix_af_rvu_gen; + u64 nix_af_rvu_err; + u64 nix_af_rvu_ras; +}; + +struct rvu_nix_health_reporters { + struct rvu_nix_event_ctx *nix_event_ctx; + struct devlink_health_reporter *rvu_hw_nix_intr_reporter; + struct work_struct intr_work; + struct devlink_health_reporter *rvu_hw_nix_gen_reporter; + struct work_struct gen_work; + struct devlink_health_reporter *rvu_hw_nix_err_reporter; + struct work_struct err_work; + struct devlink_health_reporter *rvu_hw_nix_ras_reporter; + struct work_struct ras_work; +}; + +struct rvu_devlink { + struct devlink *dl; + struct rvu *rvu; + struct workqueue_struct *devlink_wq; + struct rvu_npa_health_reporters *rvu_npa_health_reporter; + struct rvu_nix_health_reporters *rvu_nix_health_reporter; +}; + +/* Devlink APIs */ +int rvu_register_dl(struct rvu *rvu); +void rvu_unregister_dl(struct rvu *rvu); + +#endif /* RVU_DEVLINK_H */ diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rvu_nix.c b/drivers/net/ethernet/marvell/octeontx2/af/rvu_nix.c new file mode 100644 index 000000000..bb99302ea --- /dev/null +++ b/drivers/net/ethernet/marvell/octeontx2/af/rvu_nix.c @@ -0,0 +1,5440 @@ +// SPDX-License-Identifier: GPL-2.0 +/* Marvell RVU Admin Function driver + * + * Copyright (C) 2018 Marvell. + * + */ + +#include <linux/module.h> +#include <linux/pci.h> + +#include "rvu_struct.h" +#include "rvu_reg.h" +#include "rvu.h" +#include "npc.h" +#include "mcs.h" +#include "cgx.h" +#include "lmac_common.h" +#include "rvu_npc_hash.h" + +static void nix_free_tx_vtag_entries(struct rvu *rvu, u16 pcifunc); +static int rvu_nix_get_bpid(struct rvu *rvu, struct nix_bp_cfg_req *req, + int type, int chan_id); +static int nix_update_mce_rule(struct rvu *rvu, u16 pcifunc, + int type, bool add); +static int nix_setup_ipolicers(struct rvu *rvu, + struct nix_hw *nix_hw, int blkaddr); +static void nix_ipolicer_freemem(struct rvu *rvu, struct nix_hw *nix_hw); +static int nix_verify_bandprof(struct nix_cn10k_aq_enq_req *req, + struct nix_hw *nix_hw, u16 pcifunc); +static int nix_free_all_bandprof(struct rvu *rvu, u16 pcifunc); +static void nix_clear_ratelimit_aggr(struct rvu *rvu, struct nix_hw *nix_hw, + u32 leaf_prof); +static const char *nix_get_ctx_name(int ctype); + +enum mc_tbl_sz { + MC_TBL_SZ_256, + MC_TBL_SZ_512, + MC_TBL_SZ_1K, + MC_TBL_SZ_2K, + MC_TBL_SZ_4K, + MC_TBL_SZ_8K, + MC_TBL_SZ_16K, + MC_TBL_SZ_32K, + MC_TBL_SZ_64K, +}; + +enum mc_buf_cnt { + MC_BUF_CNT_8, + MC_BUF_CNT_16, + MC_BUF_CNT_32, + MC_BUF_CNT_64, + MC_BUF_CNT_128, + MC_BUF_CNT_256, + MC_BUF_CNT_512, + MC_BUF_CNT_1024, + MC_BUF_CNT_2048, +}; + +enum nix_makr_fmt_indexes { + NIX_MARK_CFG_IP_DSCP_RED, + NIX_MARK_CFG_IP_DSCP_YELLOW, + NIX_MARK_CFG_IP_DSCP_YELLOW_RED, + NIX_MARK_CFG_IP_ECN_RED, + NIX_MARK_CFG_IP_ECN_YELLOW, + NIX_MARK_CFG_IP_ECN_YELLOW_RED, + NIX_MARK_CFG_VLAN_DEI_RED, + NIX_MARK_CFG_VLAN_DEI_YELLOW, + NIX_MARK_CFG_VLAN_DEI_YELLOW_RED, + NIX_MARK_CFG_MAX, +}; + +/* For now considering MC resources needed for broadcast + * pkt replication only. i.e 256 HWVFs + 12 PFs. + */ +#define MC_TBL_SIZE MC_TBL_SZ_512 +#define MC_BUF_CNT MC_BUF_CNT_128 + +struct mce { + struct hlist_node node; + u16 pcifunc; +}; + +int rvu_get_next_nix_blkaddr(struct rvu *rvu, int blkaddr) +{ + int i = 0; + + /*If blkaddr is 0, return the first nix block address*/ + if (blkaddr == 0) + return rvu->nix_blkaddr[blkaddr]; + + while (i + 1 < MAX_NIX_BLKS) { + if (rvu->nix_blkaddr[i] == blkaddr) + return rvu->nix_blkaddr[i + 1]; + i++; + } + + return 0; +} + +bool is_nixlf_attached(struct rvu *rvu, u16 pcifunc) +{ + struct rvu_pfvf *pfvf = rvu_get_pfvf(rvu, pcifunc); + int blkaddr; + + blkaddr = rvu_get_blkaddr(rvu, BLKTYPE_NIX, pcifunc); + if (!pfvf->nixlf || blkaddr < 0) + return false; + return true; +} + +int rvu_get_nixlf_count(struct rvu *rvu) +{ + int blkaddr = 0, max = 0; + struct rvu_block *block; + + blkaddr = rvu_get_next_nix_blkaddr(rvu, blkaddr); + while (blkaddr) { + block = &rvu->hw->block[blkaddr]; + max += block->lf.max; + blkaddr = rvu_get_next_nix_blkaddr(rvu, blkaddr); + } + return max; +} + +int nix_get_nixlf(struct rvu *rvu, u16 pcifunc, int *nixlf, int *nix_blkaddr) +{ + struct rvu_pfvf *pfvf = rvu_get_pfvf(rvu, pcifunc); + struct rvu_hwinfo *hw = rvu->hw; + int blkaddr; + + blkaddr = rvu_get_blkaddr(rvu, BLKTYPE_NIX, pcifunc); + if (!pfvf->nixlf || blkaddr < 0) + return NIX_AF_ERR_AF_LF_INVALID; + + *nixlf = rvu_get_lf(rvu, &hw->block[blkaddr], pcifunc, 0); + if (*nixlf < 0) + return NIX_AF_ERR_AF_LF_INVALID; + + if (nix_blkaddr) + *nix_blkaddr = blkaddr; + + return 0; +} + +int nix_get_struct_ptrs(struct rvu *rvu, u16 pcifunc, + struct nix_hw **nix_hw, int *blkaddr) +{ + struct rvu_pfvf *pfvf; + + pfvf = rvu_get_pfvf(rvu, pcifunc); + *blkaddr = rvu_get_blkaddr(rvu, BLKTYPE_NIX, pcifunc); + if (!pfvf->nixlf || *blkaddr < 0) + return NIX_AF_ERR_AF_LF_INVALID; + + *nix_hw = get_nix_hw(rvu->hw, *blkaddr); + if (!*nix_hw) + return NIX_AF_ERR_INVALID_NIXBLK; + return 0; +} + +static void nix_mce_list_init(struct nix_mce_list *list, int max) +{ + INIT_HLIST_HEAD(&list->head); + list->count = 0; + list->max = max; +} + +static u16 nix_alloc_mce_list(struct nix_mcast *mcast, int count) +{ + int idx; + + if (!mcast) + return 0; + + idx = mcast->next_free_mce; + mcast->next_free_mce += count; + return idx; +} + +struct nix_hw *get_nix_hw(struct rvu_hwinfo *hw, int blkaddr) +{ + int nix_blkaddr = 0, i = 0; + struct rvu *rvu = hw->rvu; + + nix_blkaddr = rvu_get_next_nix_blkaddr(rvu, nix_blkaddr); + while (nix_blkaddr) { + if (blkaddr == nix_blkaddr && hw->nix) + return &hw->nix[i]; + nix_blkaddr = rvu_get_next_nix_blkaddr(rvu, nix_blkaddr); + i++; + } + return NULL; +} + +u32 convert_dwrr_mtu_to_bytes(u8 dwrr_mtu) +{ + dwrr_mtu &= 0x1FULL; + + /* MTU used for DWRR calculation is in power of 2 up until 64K bytes. + * Value of 4 is reserved for MTU value of 9728 bytes. + * Value of 5 is reserved for MTU value of 10240 bytes. + */ + switch (dwrr_mtu) { + case 4: + return 9728; + case 5: + return 10240; + default: + return BIT_ULL(dwrr_mtu); + } + + return 0; +} + +u32 convert_bytes_to_dwrr_mtu(u32 bytes) +{ + /* MTU used for DWRR calculation is in power of 2 up until 64K bytes. + * Value of 4 is reserved for MTU value of 9728 bytes. + * Value of 5 is reserved for MTU value of 10240 bytes. + */ + if (bytes > BIT_ULL(16)) + return 0; + + switch (bytes) { + case 9728: + return 4; + case 10240: + return 5; + default: + return ilog2(bytes); + } + + return 0; +} + +static void nix_rx_sync(struct rvu *rvu, int blkaddr) +{ + int err; + + /* Sync all in flight RX packets to LLC/DRAM */ + rvu_write64(rvu, blkaddr, NIX_AF_RX_SW_SYNC, BIT_ULL(0)); + err = rvu_poll_reg(rvu, blkaddr, NIX_AF_RX_SW_SYNC, BIT_ULL(0), true); + if (err) + dev_err(rvu->dev, "SYNC1: NIX RX software sync failed\n"); + + /* SW_SYNC ensures all existing transactions are finished and pkts + * are written to LLC/DRAM, queues should be teared down after + * successful SW_SYNC. Due to a HW errata, in some rare scenarios + * an existing transaction might end after SW_SYNC operation. To + * ensure operation is fully done, do the SW_SYNC twice. + */ + rvu_write64(rvu, blkaddr, NIX_AF_RX_SW_SYNC, BIT_ULL(0)); + err = rvu_poll_reg(rvu, blkaddr, NIX_AF_RX_SW_SYNC, BIT_ULL(0), true); + if (err) + dev_err(rvu->dev, "SYNC2: NIX RX software sync failed\n"); +} + +static bool is_valid_txschq(struct rvu *rvu, int blkaddr, + int lvl, u16 pcifunc, u16 schq) +{ + struct rvu_hwinfo *hw = rvu->hw; + struct nix_txsch *txsch; + struct nix_hw *nix_hw; + u16 map_func; + + nix_hw = get_nix_hw(rvu->hw, blkaddr); + if (!nix_hw) + return false; + + txsch = &nix_hw->txsch[lvl]; + /* Check out of bounds */ + if (schq >= txsch->schq.max) + return false; + + mutex_lock(&rvu->rsrc_lock); + map_func = TXSCH_MAP_FUNC(txsch->pfvf_map[schq]); + mutex_unlock(&rvu->rsrc_lock); + + /* TLs aggegating traffic are shared across PF and VFs */ + if (lvl >= hw->cap.nix_tx_aggr_lvl) { + if (rvu_get_pf(map_func) != rvu_get_pf(pcifunc)) + return false; + else + return true; + } + + if (map_func != pcifunc) + return false; + + return true; +} + +static int nix_interface_init(struct rvu *rvu, u16 pcifunc, int type, int nixlf, + struct nix_lf_alloc_rsp *rsp, bool loop) +{ + struct rvu_pfvf *parent_pf, *pfvf = rvu_get_pfvf(rvu, pcifunc); + u16 req_chan_base, req_chan_end, req_chan_cnt; + struct rvu_hwinfo *hw = rvu->hw; + struct sdp_node_info *sdp_info; + int pkind, pf, vf, lbkid, vfid; + u8 cgx_id, lmac_id; + bool from_vf; + int err; + + pf = rvu_get_pf(pcifunc); + if (!is_pf_cgxmapped(rvu, pf) && type != NIX_INTF_TYPE_LBK && + type != NIX_INTF_TYPE_SDP) + return 0; + + switch (type) { + case NIX_INTF_TYPE_CGX: + pfvf->cgx_lmac = rvu->pf2cgxlmac_map[pf]; + rvu_get_cgx_lmac_id(pfvf->cgx_lmac, &cgx_id, &lmac_id); + + pkind = rvu_npc_get_pkind(rvu, pf); + if (pkind < 0) { + dev_err(rvu->dev, + "PF_Func 0x%x: Invalid pkind\n", pcifunc); + return -EINVAL; + } + pfvf->rx_chan_base = rvu_nix_chan_cgx(rvu, cgx_id, lmac_id, 0); + pfvf->tx_chan_base = pfvf->rx_chan_base; + pfvf->rx_chan_cnt = 1; + pfvf->tx_chan_cnt = 1; + rsp->tx_link = cgx_id * hw->lmac_per_cgx + lmac_id; + + cgx_set_pkind(rvu_cgx_pdata(cgx_id, rvu), lmac_id, pkind); + rvu_npc_set_pkind(rvu, pkind, pfvf); + + break; + case NIX_INTF_TYPE_LBK: + vf = (pcifunc & RVU_PFVF_FUNC_MASK) - 1; + + /* If NIX1 block is present on the silicon then NIXes are + * assigned alternatively for lbk interfaces. NIX0 should + * send packets on lbk link 1 channels and NIX1 should send + * on lbk link 0 channels for the communication between + * NIX0 and NIX1. + */ + lbkid = 0; + if (rvu->hw->lbk_links > 1) + lbkid = vf & 0x1 ? 0 : 1; + + /* By default NIX0 is configured to send packet on lbk link 1 + * (which corresponds to LBK1), same packet will receive on + * NIX1 over lbk link 0. If NIX1 sends packet on lbk link 0 + * (which corresponds to LBK2) packet will receive on NIX0 lbk + * link 1. + * But if lbk links for NIX0 and NIX1 are negated, i.e NIX0 + * transmits and receives on lbk link 0, whick corresponds + * to LBK1 block, back to back connectivity between NIX and + * LBK can be achieved (which is similar to 96xx) + * + * RX TX + * NIX0 lbk link 1 (LBK2) 1 (LBK1) + * NIX0 lbk link 0 (LBK0) 0 (LBK0) + * NIX1 lbk link 0 (LBK1) 0 (LBK2) + * NIX1 lbk link 1 (LBK3) 1 (LBK3) + */ + if (loop) + lbkid = !lbkid; + + /* Note that AF's VFs work in pairs and talk over consecutive + * loopback channels.Therefore if odd number of AF VFs are + * enabled then the last VF remains with no pair. + */ + pfvf->rx_chan_base = rvu_nix_chan_lbk(rvu, lbkid, vf); + pfvf->tx_chan_base = vf & 0x1 ? + rvu_nix_chan_lbk(rvu, lbkid, vf - 1) : + rvu_nix_chan_lbk(rvu, lbkid, vf + 1); + pfvf->rx_chan_cnt = 1; + pfvf->tx_chan_cnt = 1; + rsp->tx_link = hw->cgx_links + lbkid; + pfvf->lbkid = lbkid; + rvu_npc_set_pkind(rvu, NPC_RX_LBK_PKIND, pfvf); + rvu_npc_install_promisc_entry(rvu, pcifunc, nixlf, + pfvf->rx_chan_base, + pfvf->rx_chan_cnt); + + break; + case NIX_INTF_TYPE_SDP: + from_vf = !!(pcifunc & RVU_PFVF_FUNC_MASK); + parent_pf = &rvu->pf[rvu_get_pf(pcifunc)]; + sdp_info = parent_pf->sdp_info; + if (!sdp_info) { + dev_err(rvu->dev, "Invalid sdp_info pointer\n"); + return -EINVAL; + } + if (from_vf) { + req_chan_base = rvu_nix_chan_sdp(rvu, 0) + sdp_info->pf_srn + + sdp_info->num_pf_rings; + vf = (pcifunc & RVU_PFVF_FUNC_MASK) - 1; + for (vfid = 0; vfid < vf; vfid++) + req_chan_base += sdp_info->vf_rings[vfid]; + req_chan_cnt = sdp_info->vf_rings[vf]; + req_chan_end = req_chan_base + req_chan_cnt - 1; + if (req_chan_base < rvu_nix_chan_sdp(rvu, 0) || + req_chan_end > rvu_nix_chan_sdp(rvu, 255)) { + dev_err(rvu->dev, + "PF_Func 0x%x: Invalid channel base and count\n", + pcifunc); + return -EINVAL; + } + } else { + req_chan_base = rvu_nix_chan_sdp(rvu, 0) + sdp_info->pf_srn; + req_chan_cnt = sdp_info->num_pf_rings; + } + + pfvf->rx_chan_base = req_chan_base; + pfvf->rx_chan_cnt = req_chan_cnt; + pfvf->tx_chan_base = pfvf->rx_chan_base; + pfvf->tx_chan_cnt = pfvf->rx_chan_cnt; + + rsp->tx_link = hw->cgx_links + hw->lbk_links; + rvu_npc_install_promisc_entry(rvu, pcifunc, nixlf, + pfvf->rx_chan_base, + pfvf->rx_chan_cnt); + break; + } + + /* Add a UCAST forwarding rule in MCAM with this NIXLF attached + * RVU PF/VF's MAC address. + */ + rvu_npc_install_ucast_entry(rvu, pcifunc, nixlf, + pfvf->rx_chan_base, pfvf->mac_addr); + + /* Add this PF_FUNC to bcast pkt replication list */ + err = nix_update_mce_rule(rvu, pcifunc, NIXLF_BCAST_ENTRY, true); + if (err) { + dev_err(rvu->dev, + "Bcast list, failed to enable PF_FUNC 0x%x\n", + pcifunc); + return err; + } + /* Install MCAM rule matching Ethernet broadcast mac address */ + rvu_npc_install_bcast_match_entry(rvu, pcifunc, + nixlf, pfvf->rx_chan_base); + + pfvf->maxlen = NIC_HW_MIN_FRS; + pfvf->minlen = NIC_HW_MIN_FRS; + + return 0; +} + +static void nix_interface_deinit(struct rvu *rvu, u16 pcifunc, u8 nixlf) +{ + struct rvu_pfvf *pfvf = rvu_get_pfvf(rvu, pcifunc); + int err; + + pfvf->maxlen = 0; + pfvf->minlen = 0; + + /* Remove this PF_FUNC from bcast pkt replication list */ + err = nix_update_mce_rule(rvu, pcifunc, NIXLF_BCAST_ENTRY, false); + if (err) { + dev_err(rvu->dev, + "Bcast list, failed to disable PF_FUNC 0x%x\n", + pcifunc); + } + + /* Free and disable any MCAM entries used by this NIX LF */ + rvu_npc_disable_mcam_entries(rvu, pcifunc, nixlf); + + /* Disable DMAC filters used */ + rvu_cgx_disable_dmac_entries(rvu, pcifunc); +} + +int rvu_mbox_handler_nix_bp_disable(struct rvu *rvu, + struct nix_bp_cfg_req *req, + struct msg_rsp *rsp) +{ + u16 pcifunc = req->hdr.pcifunc; + struct rvu_pfvf *pfvf; + int blkaddr, pf, type; + u16 chan_base, chan; + u64 cfg; + + pf = rvu_get_pf(pcifunc); + type = is_afvf(pcifunc) ? NIX_INTF_TYPE_LBK : NIX_INTF_TYPE_CGX; + if (!is_pf_cgxmapped(rvu, pf) && type != NIX_INTF_TYPE_LBK) + return 0; + + pfvf = rvu_get_pfvf(rvu, pcifunc); + blkaddr = rvu_get_blkaddr(rvu, BLKTYPE_NIX, pcifunc); + + chan_base = pfvf->rx_chan_base + req->chan_base; + for (chan = chan_base; chan < (chan_base + req->chan_cnt); chan++) { + cfg = rvu_read64(rvu, blkaddr, NIX_AF_RX_CHANX_CFG(chan)); + rvu_write64(rvu, blkaddr, NIX_AF_RX_CHANX_CFG(chan), + cfg & ~BIT_ULL(16)); + } + return 0; +} + +static int rvu_nix_get_bpid(struct rvu *rvu, struct nix_bp_cfg_req *req, + int type, int chan_id) +{ + int bpid, blkaddr, lmac_chan_cnt, sdp_chan_cnt; + u16 cgx_bpid_cnt, lbk_bpid_cnt, sdp_bpid_cnt; + struct rvu_hwinfo *hw = rvu->hw; + struct rvu_pfvf *pfvf; + u8 cgx_id, lmac_id; + u64 cfg; + + blkaddr = rvu_get_blkaddr(rvu, BLKTYPE_NIX, req->hdr.pcifunc); + cfg = rvu_read64(rvu, blkaddr, NIX_AF_CONST); + lmac_chan_cnt = cfg & 0xFF; + + cgx_bpid_cnt = hw->cgx_links * lmac_chan_cnt; + lbk_bpid_cnt = hw->lbk_links * ((cfg >> 16) & 0xFF); + + cfg = rvu_read64(rvu, blkaddr, NIX_AF_CONST1); + sdp_chan_cnt = cfg & 0xFFF; + sdp_bpid_cnt = hw->sdp_links * sdp_chan_cnt; + + pfvf = rvu_get_pfvf(rvu, req->hdr.pcifunc); + + /* Backpressure IDs range division + * CGX channles are mapped to (0 - 191) BPIDs + * LBK channles are mapped to (192 - 255) BPIDs + * SDP channles are mapped to (256 - 511) BPIDs + * + * Lmac channles and bpids mapped as follows + * cgx(0)_lmac(0)_chan(0 - 15) = bpid(0 - 15) + * cgx(0)_lmac(1)_chan(0 - 15) = bpid(16 - 31) .... + * cgx(1)_lmac(0)_chan(0 - 15) = bpid(64 - 79) .... + */ + switch (type) { + case NIX_INTF_TYPE_CGX: + if ((req->chan_base + req->chan_cnt) > 16) + return -EINVAL; + rvu_get_cgx_lmac_id(pfvf->cgx_lmac, &cgx_id, &lmac_id); + /* Assign bpid based on cgx, lmac and chan id */ + bpid = (cgx_id * hw->lmac_per_cgx * lmac_chan_cnt) + + (lmac_id * lmac_chan_cnt) + req->chan_base; + + if (req->bpid_per_chan) + bpid += chan_id; + if (bpid > cgx_bpid_cnt) + return -EINVAL; + break; + + case NIX_INTF_TYPE_LBK: + if ((req->chan_base + req->chan_cnt) > 63) + return -EINVAL; + bpid = cgx_bpid_cnt + req->chan_base; + if (req->bpid_per_chan) + bpid += chan_id; + if (bpid > (cgx_bpid_cnt + lbk_bpid_cnt)) + return -EINVAL; + break; + case NIX_INTF_TYPE_SDP: + if ((req->chan_base + req->chan_cnt) > 255) + return -EINVAL; + + bpid = sdp_bpid_cnt + req->chan_base; + if (req->bpid_per_chan) + bpid += chan_id; + + if (bpid > (cgx_bpid_cnt + lbk_bpid_cnt + sdp_bpid_cnt)) + return -EINVAL; + break; + default: + return -EINVAL; + } + return bpid; +} + +int rvu_mbox_handler_nix_bp_enable(struct rvu *rvu, + struct nix_bp_cfg_req *req, + struct nix_bp_cfg_rsp *rsp) +{ + int blkaddr, pf, type, chan_id = 0; + u16 pcifunc = req->hdr.pcifunc; + struct rvu_pfvf *pfvf; + u16 chan_base, chan; + s16 bpid, bpid_base; + u64 cfg; + + pf = rvu_get_pf(pcifunc); + type = is_afvf(pcifunc) ? NIX_INTF_TYPE_LBK : NIX_INTF_TYPE_CGX; + if (is_sdp_pfvf(pcifunc)) + type = NIX_INTF_TYPE_SDP; + + /* Enable backpressure only for CGX mapped PFs and LBK/SDP interface */ + if (!is_pf_cgxmapped(rvu, pf) && type != NIX_INTF_TYPE_LBK && + type != NIX_INTF_TYPE_SDP) + return 0; + + pfvf = rvu_get_pfvf(rvu, pcifunc); + blkaddr = rvu_get_blkaddr(rvu, BLKTYPE_NIX, pcifunc); + + bpid_base = rvu_nix_get_bpid(rvu, req, type, chan_id); + chan_base = pfvf->rx_chan_base + req->chan_base; + bpid = bpid_base; + + for (chan = chan_base; chan < (chan_base + req->chan_cnt); chan++) { + if (bpid < 0) { + dev_warn(rvu->dev, "Fail to enable backpressure\n"); + return -EINVAL; + } + + cfg = rvu_read64(rvu, blkaddr, NIX_AF_RX_CHANX_CFG(chan)); + cfg &= ~GENMASK_ULL(8, 0); + rvu_write64(rvu, blkaddr, NIX_AF_RX_CHANX_CFG(chan), + cfg | (bpid & GENMASK_ULL(8, 0)) | BIT_ULL(16)); + chan_id++; + bpid = rvu_nix_get_bpid(rvu, req, type, chan_id); + } + + for (chan = 0; chan < req->chan_cnt; chan++) { + /* Map channel and bpid assign to it */ + rsp->chan_bpid[chan] = ((req->chan_base + chan) & 0x7F) << 10 | + (bpid_base & 0x3FF); + if (req->bpid_per_chan) + bpid_base++; + } + rsp->chan_cnt = req->chan_cnt; + + return 0; +} + +static void nix_setup_lso_tso_l3(struct rvu *rvu, int blkaddr, + u64 format, bool v4, u64 *fidx) +{ + struct nix_lso_format field = {0}; + + /* IP's Length field */ + field.layer = NIX_TXLAYER_OL3; + /* In ipv4, length field is at offset 2 bytes, for ipv6 it's 4 */ + field.offset = v4 ? 2 : 4; + field.sizem1 = 1; /* i.e 2 bytes */ + field.alg = NIX_LSOALG_ADD_PAYLEN; + rvu_write64(rvu, blkaddr, + NIX_AF_LSO_FORMATX_FIELDX(format, (*fidx)++), + *(u64 *)&field); + + /* No ID field in IPv6 header */ + if (!v4) + return; + + /* IP's ID field */ + field.layer = NIX_TXLAYER_OL3; + field.offset = 4; + field.sizem1 = 1; /* i.e 2 bytes */ + field.alg = NIX_LSOALG_ADD_SEGNUM; + rvu_write64(rvu, blkaddr, + NIX_AF_LSO_FORMATX_FIELDX(format, (*fidx)++), + *(u64 *)&field); +} + +static void nix_setup_lso_tso_l4(struct rvu *rvu, int blkaddr, + u64 format, u64 *fidx) +{ + struct nix_lso_format field = {0}; + + /* TCP's sequence number field */ + field.layer = NIX_TXLAYER_OL4; + field.offset = 4; + field.sizem1 = 3; /* i.e 4 bytes */ + field.alg = NIX_LSOALG_ADD_OFFSET; + rvu_write64(rvu, blkaddr, + NIX_AF_LSO_FORMATX_FIELDX(format, (*fidx)++), + *(u64 *)&field); + + /* TCP's flags field */ + field.layer = NIX_TXLAYER_OL4; + field.offset = 12; + field.sizem1 = 1; /* 2 bytes */ + field.alg = NIX_LSOALG_TCP_FLAGS; + rvu_write64(rvu, blkaddr, + NIX_AF_LSO_FORMATX_FIELDX(format, (*fidx)++), + *(u64 *)&field); +} + +static void nix_setup_lso(struct rvu *rvu, struct nix_hw *nix_hw, int blkaddr) +{ + u64 cfg, idx, fidx = 0; + + /* Get max HW supported format indices */ + cfg = (rvu_read64(rvu, blkaddr, NIX_AF_CONST1) >> 48) & 0xFF; + nix_hw->lso.total = cfg; + + /* Enable LSO */ + cfg = rvu_read64(rvu, blkaddr, NIX_AF_LSO_CFG); + /* For TSO, set first and middle segment flags to + * mask out PSH, RST & FIN flags in TCP packet + */ + cfg &= ~((0xFFFFULL << 32) | (0xFFFFULL << 16)); + cfg |= (0xFFF2ULL << 32) | (0xFFF2ULL << 16); + rvu_write64(rvu, blkaddr, NIX_AF_LSO_CFG, cfg | BIT_ULL(63)); + + /* Setup default static LSO formats + * + * Configure format fields for TCPv4 segmentation offload + */ + idx = NIX_LSO_FORMAT_IDX_TSOV4; + nix_setup_lso_tso_l3(rvu, blkaddr, idx, true, &fidx); + nix_setup_lso_tso_l4(rvu, blkaddr, idx, &fidx); + + /* Set rest of the fields to NOP */ + for (; fidx < 8; fidx++) { + rvu_write64(rvu, blkaddr, + NIX_AF_LSO_FORMATX_FIELDX(idx, fidx), 0x0ULL); + } + nix_hw->lso.in_use++; + + /* Configure format fields for TCPv6 segmentation offload */ + idx = NIX_LSO_FORMAT_IDX_TSOV6; + fidx = 0; + nix_setup_lso_tso_l3(rvu, blkaddr, idx, false, &fidx); + nix_setup_lso_tso_l4(rvu, blkaddr, idx, &fidx); + + /* Set rest of the fields to NOP */ + for (; fidx < 8; fidx++) { + rvu_write64(rvu, blkaddr, + NIX_AF_LSO_FORMATX_FIELDX(idx, fidx), 0x0ULL); + } + nix_hw->lso.in_use++; +} + +static void nix_ctx_free(struct rvu *rvu, struct rvu_pfvf *pfvf) +{ + kfree(pfvf->rq_bmap); + kfree(pfvf->sq_bmap); + kfree(pfvf->cq_bmap); + if (pfvf->rq_ctx) + qmem_free(rvu->dev, pfvf->rq_ctx); + if (pfvf->sq_ctx) + qmem_free(rvu->dev, pfvf->sq_ctx); + if (pfvf->cq_ctx) + qmem_free(rvu->dev, pfvf->cq_ctx); + if (pfvf->rss_ctx) + qmem_free(rvu->dev, pfvf->rss_ctx); + if (pfvf->nix_qints_ctx) + qmem_free(rvu->dev, pfvf->nix_qints_ctx); + if (pfvf->cq_ints_ctx) + qmem_free(rvu->dev, pfvf->cq_ints_ctx); + + pfvf->rq_bmap = NULL; + pfvf->cq_bmap = NULL; + pfvf->sq_bmap = NULL; + pfvf->rq_ctx = NULL; + pfvf->sq_ctx = NULL; + pfvf->cq_ctx = NULL; + pfvf->rss_ctx = NULL; + pfvf->nix_qints_ctx = NULL; + pfvf->cq_ints_ctx = NULL; +} + +static int nixlf_rss_ctx_init(struct rvu *rvu, int blkaddr, + struct rvu_pfvf *pfvf, int nixlf, + int rss_sz, int rss_grps, int hwctx_size, + u64 way_mask, bool tag_lsb_as_adder) +{ + int err, grp, num_indices; + u64 val; + + /* RSS is not requested for this NIXLF */ + if (!rss_sz) + return 0; + num_indices = rss_sz * rss_grps; + + /* Alloc NIX RSS HW context memory and config the base */ + err = qmem_alloc(rvu->dev, &pfvf->rss_ctx, num_indices, hwctx_size); + if (err) + return err; + + rvu_write64(rvu, blkaddr, NIX_AF_LFX_RSS_BASE(nixlf), + (u64)pfvf->rss_ctx->iova); + + /* Config full RSS table size, enable RSS and caching */ + val = BIT_ULL(36) | BIT_ULL(4) | way_mask << 20 | + ilog2(num_indices / MAX_RSS_INDIR_TBL_SIZE); + + if (tag_lsb_as_adder) + val |= BIT_ULL(5); + + rvu_write64(rvu, blkaddr, NIX_AF_LFX_RSS_CFG(nixlf), val); + /* Config RSS group offset and sizes */ + for (grp = 0; grp < rss_grps; grp++) + rvu_write64(rvu, blkaddr, NIX_AF_LFX_RSS_GRPX(nixlf, grp), + ((ilog2(rss_sz) - 1) << 16) | (rss_sz * grp)); + return 0; +} + +static int nix_aq_enqueue_wait(struct rvu *rvu, struct rvu_block *block, + struct nix_aq_inst_s *inst) +{ + struct admin_queue *aq = block->aq; + struct nix_aq_res_s *result; + int timeout = 1000; + u64 reg, head; + int ret; + + result = (struct nix_aq_res_s *)aq->res->base; + + /* Get current head pointer where to append this instruction */ + reg = rvu_read64(rvu, block->addr, NIX_AF_AQ_STATUS); + head = (reg >> 4) & AQ_PTR_MASK; + + memcpy((void *)(aq->inst->base + (head * aq->inst->entry_sz)), + (void *)inst, aq->inst->entry_sz); + memset(result, 0, sizeof(*result)); + /* sync into memory */ + wmb(); + + /* Ring the doorbell and wait for result */ + rvu_write64(rvu, block->addr, NIX_AF_AQ_DOOR, 1); + while (result->compcode == NIX_AQ_COMP_NOTDONE) { + cpu_relax(); + udelay(1); + timeout--; + if (!timeout) + return -EBUSY; + } + + if (result->compcode != NIX_AQ_COMP_GOOD) { + /* TODO: Replace this with some error code */ + if (result->compcode == NIX_AQ_COMP_CTX_FAULT || + result->compcode == NIX_AQ_COMP_LOCKERR || + result->compcode == NIX_AQ_COMP_CTX_POISON) { + ret = rvu_ndc_fix_locked_cacheline(rvu, BLKADDR_NDC_NIX0_RX); + ret |= rvu_ndc_fix_locked_cacheline(rvu, BLKADDR_NDC_NIX0_TX); + ret |= rvu_ndc_fix_locked_cacheline(rvu, BLKADDR_NDC_NIX1_RX); + ret |= rvu_ndc_fix_locked_cacheline(rvu, BLKADDR_NDC_NIX1_TX); + if (ret) + dev_err(rvu->dev, + "%s: Not able to unlock cachelines\n", __func__); + } + + return -EBUSY; + } + + return 0; +} + +static void nix_get_aq_req_smq(struct rvu *rvu, struct nix_aq_enq_req *req, + u16 *smq, u16 *smq_mask) +{ + struct nix_cn10k_aq_enq_req *aq_req; + + if (!is_rvu_otx2(rvu)) { + aq_req = (struct nix_cn10k_aq_enq_req *)req; + *smq = aq_req->sq.smq; + *smq_mask = aq_req->sq_mask.smq; + } else { + *smq = req->sq.smq; + *smq_mask = req->sq_mask.smq; + } +} + +static int rvu_nix_blk_aq_enq_inst(struct rvu *rvu, struct nix_hw *nix_hw, + struct nix_aq_enq_req *req, + struct nix_aq_enq_rsp *rsp) +{ + struct rvu_hwinfo *hw = rvu->hw; + u16 pcifunc = req->hdr.pcifunc; + int nixlf, blkaddr, rc = 0; + struct nix_aq_inst_s inst; + struct rvu_block *block; + struct admin_queue *aq; + struct rvu_pfvf *pfvf; + u16 smq, smq_mask; + void *ctx, *mask; + bool ena; + u64 cfg; + + blkaddr = nix_hw->blkaddr; + block = &hw->block[blkaddr]; + aq = block->aq; + if (!aq) { + dev_warn(rvu->dev, "%s: NIX AQ not initialized\n", __func__); + return NIX_AF_ERR_AQ_ENQUEUE; + } + + pfvf = rvu_get_pfvf(rvu, pcifunc); + nixlf = rvu_get_lf(rvu, block, pcifunc, 0); + + /* Skip NIXLF check for broadcast MCE entry and bandwidth profile + * operations done by AF itself. + */ + if (!((!rsp && req->ctype == NIX_AQ_CTYPE_MCE) || + (req->ctype == NIX_AQ_CTYPE_BANDPROF && !pcifunc))) { + if (!pfvf->nixlf || nixlf < 0) + return NIX_AF_ERR_AF_LF_INVALID; + } + + switch (req->ctype) { + case NIX_AQ_CTYPE_RQ: + /* Check if index exceeds max no of queues */ + if (!pfvf->rq_ctx || req->qidx >= pfvf->rq_ctx->qsize) + rc = NIX_AF_ERR_AQ_ENQUEUE; + break; + case NIX_AQ_CTYPE_SQ: + if (!pfvf->sq_ctx || req->qidx >= pfvf->sq_ctx->qsize) + rc = NIX_AF_ERR_AQ_ENQUEUE; + break; + case NIX_AQ_CTYPE_CQ: + if (!pfvf->cq_ctx || req->qidx >= pfvf->cq_ctx->qsize) + rc = NIX_AF_ERR_AQ_ENQUEUE; + break; + case NIX_AQ_CTYPE_RSS: + /* Check if RSS is enabled and qidx is within range */ + cfg = rvu_read64(rvu, blkaddr, NIX_AF_LFX_RSS_CFG(nixlf)); + if (!(cfg & BIT_ULL(4)) || !pfvf->rss_ctx || + (req->qidx >= (256UL << (cfg & 0xF)))) + rc = NIX_AF_ERR_AQ_ENQUEUE; + break; + case NIX_AQ_CTYPE_MCE: + cfg = rvu_read64(rvu, blkaddr, NIX_AF_RX_MCAST_CFG); + + /* Check if index exceeds MCE list length */ + if (!nix_hw->mcast.mce_ctx || + (req->qidx >= (256UL << (cfg & 0xF)))) + rc = NIX_AF_ERR_AQ_ENQUEUE; + + /* Adding multicast lists for requests from PF/VFs is not + * yet supported, so ignore this. + */ + if (rsp) + rc = NIX_AF_ERR_AQ_ENQUEUE; + break; + case NIX_AQ_CTYPE_BANDPROF: + if (nix_verify_bandprof((struct nix_cn10k_aq_enq_req *)req, + nix_hw, pcifunc)) + rc = NIX_AF_ERR_INVALID_BANDPROF; + break; + default: + rc = NIX_AF_ERR_AQ_ENQUEUE; + } + + if (rc) + return rc; + + nix_get_aq_req_smq(rvu, req, &smq, &smq_mask); + /* Check if SQ pointed SMQ belongs to this PF/VF or not */ + if (req->ctype == NIX_AQ_CTYPE_SQ && + ((req->op == NIX_AQ_INSTOP_INIT && req->sq.ena) || + (req->op == NIX_AQ_INSTOP_WRITE && + req->sq_mask.ena && req->sq.ena && smq_mask))) { + if (!is_valid_txschq(rvu, blkaddr, NIX_TXSCH_LVL_SMQ, + pcifunc, smq)) + return NIX_AF_ERR_AQ_ENQUEUE; + } + + memset(&inst, 0, sizeof(struct nix_aq_inst_s)); + inst.lf = nixlf; + inst.cindex = req->qidx; + inst.ctype = req->ctype; + inst.op = req->op; + /* Currently we are not supporting enqueuing multiple instructions, + * so always choose first entry in result memory. + */ + inst.res_addr = (u64)aq->res->iova; + + /* Hardware uses same aq->res->base for updating result of + * previous instruction hence wait here till it is done. + */ + spin_lock(&aq->lock); + + /* Clean result + context memory */ + memset(aq->res->base, 0, aq->res->entry_sz); + /* Context needs to be written at RES_ADDR + 128 */ + ctx = aq->res->base + 128; + /* Mask needs to be written at RES_ADDR + 256 */ + mask = aq->res->base + 256; + + switch (req->op) { + case NIX_AQ_INSTOP_WRITE: + if (req->ctype == NIX_AQ_CTYPE_RQ) + memcpy(mask, &req->rq_mask, + sizeof(struct nix_rq_ctx_s)); + else if (req->ctype == NIX_AQ_CTYPE_SQ) + memcpy(mask, &req->sq_mask, + sizeof(struct nix_sq_ctx_s)); + else if (req->ctype == NIX_AQ_CTYPE_CQ) + memcpy(mask, &req->cq_mask, + sizeof(struct nix_cq_ctx_s)); + else if (req->ctype == NIX_AQ_CTYPE_RSS) + memcpy(mask, &req->rss_mask, + sizeof(struct nix_rsse_s)); + else if (req->ctype == NIX_AQ_CTYPE_MCE) + memcpy(mask, &req->mce_mask, + sizeof(struct nix_rx_mce_s)); + else if (req->ctype == NIX_AQ_CTYPE_BANDPROF) + memcpy(mask, &req->prof_mask, + sizeof(struct nix_bandprof_s)); + fallthrough; + case NIX_AQ_INSTOP_INIT: + if (req->ctype == NIX_AQ_CTYPE_RQ) + memcpy(ctx, &req->rq, sizeof(struct nix_rq_ctx_s)); + else if (req->ctype == NIX_AQ_CTYPE_SQ) + memcpy(ctx, &req->sq, sizeof(struct nix_sq_ctx_s)); + else if (req->ctype == NIX_AQ_CTYPE_CQ) + memcpy(ctx, &req->cq, sizeof(struct nix_cq_ctx_s)); + else if (req->ctype == NIX_AQ_CTYPE_RSS) + memcpy(ctx, &req->rss, sizeof(struct nix_rsse_s)); + else if (req->ctype == NIX_AQ_CTYPE_MCE) + memcpy(ctx, &req->mce, sizeof(struct nix_rx_mce_s)); + else if (req->ctype == NIX_AQ_CTYPE_BANDPROF) + memcpy(ctx, &req->prof, sizeof(struct nix_bandprof_s)); + break; + case NIX_AQ_INSTOP_NOP: + case NIX_AQ_INSTOP_READ: + case NIX_AQ_INSTOP_LOCK: + case NIX_AQ_INSTOP_UNLOCK: + break; + default: + rc = NIX_AF_ERR_AQ_ENQUEUE; + spin_unlock(&aq->lock); + return rc; + } + + /* Submit the instruction to AQ */ + rc = nix_aq_enqueue_wait(rvu, block, &inst); + if (rc) { + spin_unlock(&aq->lock); + return rc; + } + + /* Set RQ/SQ/CQ bitmap if respective queue hw context is enabled */ + if (req->op == NIX_AQ_INSTOP_INIT) { + if (req->ctype == NIX_AQ_CTYPE_RQ && req->rq.ena) + __set_bit(req->qidx, pfvf->rq_bmap); + if (req->ctype == NIX_AQ_CTYPE_SQ && req->sq.ena) + __set_bit(req->qidx, pfvf->sq_bmap); + if (req->ctype == NIX_AQ_CTYPE_CQ && req->cq.ena) + __set_bit(req->qidx, pfvf->cq_bmap); + } + + if (req->op == NIX_AQ_INSTOP_WRITE) { + if (req->ctype == NIX_AQ_CTYPE_RQ) { + ena = (req->rq.ena & req->rq_mask.ena) | + (test_bit(req->qidx, pfvf->rq_bmap) & + ~req->rq_mask.ena); + if (ena) + __set_bit(req->qidx, pfvf->rq_bmap); + else + __clear_bit(req->qidx, pfvf->rq_bmap); + } + if (req->ctype == NIX_AQ_CTYPE_SQ) { + ena = (req->rq.ena & req->sq_mask.ena) | + (test_bit(req->qidx, pfvf->sq_bmap) & + ~req->sq_mask.ena); + if (ena) + __set_bit(req->qidx, pfvf->sq_bmap); + else + __clear_bit(req->qidx, pfvf->sq_bmap); + } + if (req->ctype == NIX_AQ_CTYPE_CQ) { + ena = (req->rq.ena & req->cq_mask.ena) | + (test_bit(req->qidx, pfvf->cq_bmap) & + ~req->cq_mask.ena); + if (ena) + __set_bit(req->qidx, pfvf->cq_bmap); + else + __clear_bit(req->qidx, pfvf->cq_bmap); + } + } + + if (rsp) { + /* Copy read context into mailbox */ + if (req->op == NIX_AQ_INSTOP_READ) { + if (req->ctype == NIX_AQ_CTYPE_RQ) + memcpy(&rsp->rq, ctx, + sizeof(struct nix_rq_ctx_s)); + else if (req->ctype == NIX_AQ_CTYPE_SQ) + memcpy(&rsp->sq, ctx, + sizeof(struct nix_sq_ctx_s)); + else if (req->ctype == NIX_AQ_CTYPE_CQ) + memcpy(&rsp->cq, ctx, + sizeof(struct nix_cq_ctx_s)); + else if (req->ctype == NIX_AQ_CTYPE_RSS) + memcpy(&rsp->rss, ctx, + sizeof(struct nix_rsse_s)); + else if (req->ctype == NIX_AQ_CTYPE_MCE) + memcpy(&rsp->mce, ctx, + sizeof(struct nix_rx_mce_s)); + else if (req->ctype == NIX_AQ_CTYPE_BANDPROF) + memcpy(&rsp->prof, ctx, + sizeof(struct nix_bandprof_s)); + } + } + + spin_unlock(&aq->lock); + return 0; +} + +static int rvu_nix_verify_aq_ctx(struct rvu *rvu, struct nix_hw *nix_hw, + struct nix_aq_enq_req *req, u8 ctype) +{ + struct nix_cn10k_aq_enq_req aq_req; + struct nix_cn10k_aq_enq_rsp aq_rsp; + int rc, word; + + if (req->ctype != NIX_AQ_CTYPE_CQ) + return 0; + + rc = nix_aq_context_read(rvu, nix_hw, &aq_req, &aq_rsp, + req->hdr.pcifunc, ctype, req->qidx); + if (rc) { + dev_err(rvu->dev, + "%s: Failed to fetch %s%d context of PFFUNC 0x%x\n", + __func__, nix_get_ctx_name(ctype), req->qidx, + req->hdr.pcifunc); + return rc; + } + + /* Make copy of original context & mask which are required + * for resubmission + */ + memcpy(&aq_req.cq_mask, &req->cq_mask, sizeof(struct nix_cq_ctx_s)); + memcpy(&aq_req.cq, &req->cq, sizeof(struct nix_cq_ctx_s)); + + /* exclude fields which HW can update */ + aq_req.cq_mask.cq_err = 0; + aq_req.cq_mask.wrptr = 0; + aq_req.cq_mask.tail = 0; + aq_req.cq_mask.head = 0; + aq_req.cq_mask.avg_level = 0; + aq_req.cq_mask.update_time = 0; + aq_req.cq_mask.substream = 0; + + /* Context mask (cq_mask) holds mask value of fields which + * are changed in AQ WRITE operation. + * for example cq.drop = 0xa; + * cq_mask.drop = 0xff; + * Below logic performs '&' between cq and cq_mask so that non + * updated fields are masked out for request and response + * comparison + */ + for (word = 0; word < sizeof(struct nix_cq_ctx_s) / sizeof(u64); + word++) { + *(u64 *)((u8 *)&aq_rsp.cq + word * 8) &= + (*(u64 *)((u8 *)&aq_req.cq_mask + word * 8)); + *(u64 *)((u8 *)&aq_req.cq + word * 8) &= + (*(u64 *)((u8 *)&aq_req.cq_mask + word * 8)); + } + + if (memcmp(&aq_req.cq, &aq_rsp.cq, sizeof(struct nix_cq_ctx_s))) + return NIX_AF_ERR_AQ_CTX_RETRY_WRITE; + + return 0; +} + +static int rvu_nix_aq_enq_inst(struct rvu *rvu, struct nix_aq_enq_req *req, + struct nix_aq_enq_rsp *rsp) +{ + struct nix_hw *nix_hw; + int err, retries = 5; + int blkaddr; + + blkaddr = rvu_get_blkaddr(rvu, BLKTYPE_NIX, req->hdr.pcifunc); + if (blkaddr < 0) + return NIX_AF_ERR_AF_LF_INVALID; + + nix_hw = get_nix_hw(rvu->hw, blkaddr); + if (!nix_hw) + return NIX_AF_ERR_INVALID_NIXBLK; + +retry: + err = rvu_nix_blk_aq_enq_inst(rvu, nix_hw, req, rsp); + + /* HW errata 'AQ Modification to CQ could be discarded on heavy traffic' + * As a work around perfrom CQ context read after each AQ write. If AQ + * read shows AQ write is not updated perform AQ write again. + */ + if (!err && req->op == NIX_AQ_INSTOP_WRITE) { + err = rvu_nix_verify_aq_ctx(rvu, nix_hw, req, NIX_AQ_CTYPE_CQ); + if (err == NIX_AF_ERR_AQ_CTX_RETRY_WRITE) { + if (retries--) + goto retry; + else + return NIX_AF_ERR_CQ_CTX_WRITE_ERR; + } + } + + return err; +} + +static const char *nix_get_ctx_name(int ctype) +{ + switch (ctype) { + case NIX_AQ_CTYPE_CQ: + return "CQ"; + case NIX_AQ_CTYPE_SQ: + return "SQ"; + case NIX_AQ_CTYPE_RQ: + return "RQ"; + case NIX_AQ_CTYPE_RSS: + return "RSS"; + } + return ""; +} + +static int nix_lf_hwctx_disable(struct rvu *rvu, struct hwctx_disable_req *req) +{ + struct rvu_pfvf *pfvf = rvu_get_pfvf(rvu, req->hdr.pcifunc); + struct nix_aq_enq_req aq_req; + unsigned long *bmap; + int qidx, q_cnt = 0; + int err = 0, rc; + + if (!pfvf->cq_ctx || !pfvf->sq_ctx || !pfvf->rq_ctx) + return NIX_AF_ERR_AQ_ENQUEUE; + + memset(&aq_req, 0, sizeof(struct nix_aq_enq_req)); + aq_req.hdr.pcifunc = req->hdr.pcifunc; + + if (req->ctype == NIX_AQ_CTYPE_CQ) { + aq_req.cq.ena = 0; + aq_req.cq_mask.ena = 1; + aq_req.cq.bp_ena = 0; + aq_req.cq_mask.bp_ena = 1; + q_cnt = pfvf->cq_ctx->qsize; + bmap = pfvf->cq_bmap; + } + if (req->ctype == NIX_AQ_CTYPE_SQ) { + aq_req.sq.ena = 0; + aq_req.sq_mask.ena = 1; + q_cnt = pfvf->sq_ctx->qsize; + bmap = pfvf->sq_bmap; + } + if (req->ctype == NIX_AQ_CTYPE_RQ) { + aq_req.rq.ena = 0; + aq_req.rq_mask.ena = 1; + q_cnt = pfvf->rq_ctx->qsize; + bmap = pfvf->rq_bmap; + } + + aq_req.ctype = req->ctype; + aq_req.op = NIX_AQ_INSTOP_WRITE; + + for (qidx = 0; qidx < q_cnt; qidx++) { + if (!test_bit(qidx, bmap)) + continue; + aq_req.qidx = qidx; + rc = rvu_nix_aq_enq_inst(rvu, &aq_req, NULL); + if (rc) { + err = rc; + dev_err(rvu->dev, "Failed to disable %s:%d context\n", + nix_get_ctx_name(req->ctype), qidx); + } + } + + return err; +} + +#ifdef CONFIG_NDC_DIS_DYNAMIC_CACHING +static int nix_lf_hwctx_lockdown(struct rvu *rvu, struct nix_aq_enq_req *req) +{ + struct nix_aq_enq_req lock_ctx_req; + int err; + + if (req->op != NIX_AQ_INSTOP_INIT) + return 0; + + if (req->ctype == NIX_AQ_CTYPE_MCE || + req->ctype == NIX_AQ_CTYPE_DYNO) + return 0; + + memset(&lock_ctx_req, 0, sizeof(struct nix_aq_enq_req)); + lock_ctx_req.hdr.pcifunc = req->hdr.pcifunc; + lock_ctx_req.ctype = req->ctype; + lock_ctx_req.op = NIX_AQ_INSTOP_LOCK; + lock_ctx_req.qidx = req->qidx; + err = rvu_nix_aq_enq_inst(rvu, &lock_ctx_req, NULL); + if (err) + dev_err(rvu->dev, + "PFUNC 0x%x: Failed to lock NIX %s:%d context\n", + req->hdr.pcifunc, + nix_get_ctx_name(req->ctype), req->qidx); + return err; +} + +int rvu_mbox_handler_nix_aq_enq(struct rvu *rvu, + struct nix_aq_enq_req *req, + struct nix_aq_enq_rsp *rsp) +{ + int err; + + err = rvu_nix_aq_enq_inst(rvu, req, rsp); + if (!err) + err = nix_lf_hwctx_lockdown(rvu, req); + return err; +} +#else + +int rvu_mbox_handler_nix_aq_enq(struct rvu *rvu, + struct nix_aq_enq_req *req, + struct nix_aq_enq_rsp *rsp) +{ + return rvu_nix_aq_enq_inst(rvu, req, rsp); +} +#endif +/* CN10K mbox handler */ +int rvu_mbox_handler_nix_cn10k_aq_enq(struct rvu *rvu, + struct nix_cn10k_aq_enq_req *req, + struct nix_cn10k_aq_enq_rsp *rsp) +{ + return rvu_nix_aq_enq_inst(rvu, (struct nix_aq_enq_req *)req, + (struct nix_aq_enq_rsp *)rsp); +} + +int rvu_mbox_handler_nix_hwctx_disable(struct rvu *rvu, + struct hwctx_disable_req *req, + struct msg_rsp *rsp) +{ + return nix_lf_hwctx_disable(rvu, req); +} + +int rvu_mbox_handler_nix_lf_alloc(struct rvu *rvu, + struct nix_lf_alloc_req *req, + struct nix_lf_alloc_rsp *rsp) +{ + int nixlf, qints, hwctx_size, intf, err, rc = 0; + struct rvu_hwinfo *hw = rvu->hw; + u16 pcifunc = req->hdr.pcifunc; + struct rvu_block *block; + struct rvu_pfvf *pfvf; + u64 cfg, ctx_cfg; + int blkaddr; + + if (!req->rq_cnt || !req->sq_cnt || !req->cq_cnt) + return NIX_AF_ERR_PARAM; + + if (req->way_mask) + req->way_mask &= 0xFFFF; + + pfvf = rvu_get_pfvf(rvu, pcifunc); + blkaddr = rvu_get_blkaddr(rvu, BLKTYPE_NIX, pcifunc); + if (!pfvf->nixlf || blkaddr < 0) + return NIX_AF_ERR_AF_LF_INVALID; + + block = &hw->block[blkaddr]; + nixlf = rvu_get_lf(rvu, block, pcifunc, 0); + if (nixlf < 0) + return NIX_AF_ERR_AF_LF_INVALID; + + /* Check if requested 'NIXLF <=> NPALF' mapping is valid */ + if (req->npa_func) { + /* If default, use 'this' NIXLF's PFFUNC */ + if (req->npa_func == RVU_DEFAULT_PF_FUNC) + req->npa_func = pcifunc; + if (!is_pffunc_map_valid(rvu, req->npa_func, BLKTYPE_NPA)) + return NIX_AF_INVAL_NPA_PF_FUNC; + } + + /* Check if requested 'NIXLF <=> SSOLF' mapping is valid */ + if (req->sso_func) { + /* If default, use 'this' NIXLF's PFFUNC */ + if (req->sso_func == RVU_DEFAULT_PF_FUNC) + req->sso_func = pcifunc; + if (!is_pffunc_map_valid(rvu, req->sso_func, BLKTYPE_SSO)) + return NIX_AF_INVAL_SSO_PF_FUNC; + } + + /* If RSS is being enabled, check if requested config is valid. + * RSS table size should be power of two, otherwise + * RSS_GRP::OFFSET + adder might go beyond that group or + * won't be able to use entire table. + */ + if (req->rss_sz && (req->rss_sz > MAX_RSS_INDIR_TBL_SIZE || + !is_power_of_2(req->rss_sz))) + return NIX_AF_ERR_RSS_SIZE_INVALID; + + if (req->rss_sz && + (!req->rss_grps || req->rss_grps > MAX_RSS_GROUPS)) + return NIX_AF_ERR_RSS_GRPS_INVALID; + + /* Reset this NIX LF */ + err = rvu_lf_reset(rvu, block, nixlf); + if (err) { + dev_err(rvu->dev, "Failed to reset NIX%d LF%d\n", + block->addr - BLKADDR_NIX0, nixlf); + return NIX_AF_ERR_LF_RESET; + } + + ctx_cfg = rvu_read64(rvu, blkaddr, NIX_AF_CONST3); + + /* Alloc NIX RQ HW context memory and config the base */ + hwctx_size = 1UL << ((ctx_cfg >> 4) & 0xF); + err = qmem_alloc(rvu->dev, &pfvf->rq_ctx, req->rq_cnt, hwctx_size); + if (err) + goto free_mem; + + pfvf->rq_bmap = kcalloc(req->rq_cnt, sizeof(long), GFP_KERNEL); + if (!pfvf->rq_bmap) + goto free_mem; + + rvu_write64(rvu, blkaddr, NIX_AF_LFX_RQS_BASE(nixlf), + (u64)pfvf->rq_ctx->iova); + + /* Set caching and queue count in HW */ + cfg = BIT_ULL(36) | (req->rq_cnt - 1) | req->way_mask << 20; + rvu_write64(rvu, blkaddr, NIX_AF_LFX_RQS_CFG(nixlf), cfg); + + /* Alloc NIX SQ HW context memory and config the base */ + hwctx_size = 1UL << (ctx_cfg & 0xF); + err = qmem_alloc(rvu->dev, &pfvf->sq_ctx, req->sq_cnt, hwctx_size); + if (err) + goto free_mem; + + pfvf->sq_bmap = kcalloc(req->sq_cnt, sizeof(long), GFP_KERNEL); + if (!pfvf->sq_bmap) + goto free_mem; + + rvu_write64(rvu, blkaddr, NIX_AF_LFX_SQS_BASE(nixlf), + (u64)pfvf->sq_ctx->iova); + + cfg = BIT_ULL(36) | (req->sq_cnt - 1) | req->way_mask << 20; + rvu_write64(rvu, blkaddr, NIX_AF_LFX_SQS_CFG(nixlf), cfg); + + /* Alloc NIX CQ HW context memory and config the base */ + hwctx_size = 1UL << ((ctx_cfg >> 8) & 0xF); + err = qmem_alloc(rvu->dev, &pfvf->cq_ctx, req->cq_cnt, hwctx_size); + if (err) + goto free_mem; + + pfvf->cq_bmap = kcalloc(req->cq_cnt, sizeof(long), GFP_KERNEL); + if (!pfvf->cq_bmap) + goto free_mem; + + rvu_write64(rvu, blkaddr, NIX_AF_LFX_CQS_BASE(nixlf), + (u64)pfvf->cq_ctx->iova); + + cfg = BIT_ULL(36) | (req->cq_cnt - 1) | req->way_mask << 20; + rvu_write64(rvu, blkaddr, NIX_AF_LFX_CQS_CFG(nixlf), cfg); + + /* Initialize receive side scaling (RSS) */ + hwctx_size = 1UL << ((ctx_cfg >> 12) & 0xF); + err = nixlf_rss_ctx_init(rvu, blkaddr, pfvf, nixlf, req->rss_sz, + req->rss_grps, hwctx_size, req->way_mask, + !!(req->flags & NIX_LF_RSS_TAG_LSB_AS_ADDER)); + if (err) + goto free_mem; + + /* Alloc memory for CQINT's HW contexts */ + cfg = rvu_read64(rvu, blkaddr, NIX_AF_CONST2); + qints = (cfg >> 24) & 0xFFF; + hwctx_size = 1UL << ((ctx_cfg >> 24) & 0xF); + err = qmem_alloc(rvu->dev, &pfvf->cq_ints_ctx, qints, hwctx_size); + if (err) + goto free_mem; + + rvu_write64(rvu, blkaddr, NIX_AF_LFX_CINTS_BASE(nixlf), + (u64)pfvf->cq_ints_ctx->iova); + + rvu_write64(rvu, blkaddr, NIX_AF_LFX_CINTS_CFG(nixlf), + BIT_ULL(36) | req->way_mask << 20); + + /* Alloc memory for QINT's HW contexts */ + cfg = rvu_read64(rvu, blkaddr, NIX_AF_CONST2); + qints = (cfg >> 12) & 0xFFF; + hwctx_size = 1UL << ((ctx_cfg >> 20) & 0xF); + err = qmem_alloc(rvu->dev, &pfvf->nix_qints_ctx, qints, hwctx_size); + if (err) + goto free_mem; + + rvu_write64(rvu, blkaddr, NIX_AF_LFX_QINTS_BASE(nixlf), + (u64)pfvf->nix_qints_ctx->iova); + rvu_write64(rvu, blkaddr, NIX_AF_LFX_QINTS_CFG(nixlf), + BIT_ULL(36) | req->way_mask << 20); + + /* Setup VLANX TPID's. + * Use VLAN1 for 802.1Q + * and VLAN0 for 802.1AD. + */ + cfg = (0x8100ULL << 16) | 0x88A8ULL; + rvu_write64(rvu, blkaddr, NIX_AF_LFX_TX_CFG(nixlf), cfg); + + /* Enable LMTST for this NIX LF */ + rvu_write64(rvu, blkaddr, NIX_AF_LFX_TX_CFG2(nixlf), BIT_ULL(0)); + + /* Set CQE/WQE size, NPA_PF_FUNC for SQBs and also SSO_PF_FUNC */ + if (req->npa_func) + cfg = req->npa_func; + if (req->sso_func) + cfg |= (u64)req->sso_func << 16; + + cfg |= (u64)req->xqe_sz << 33; + rvu_write64(rvu, blkaddr, NIX_AF_LFX_CFG(nixlf), cfg); + + /* Config Rx pkt length, csum checks and apad enable / disable */ + rvu_write64(rvu, blkaddr, NIX_AF_LFX_RX_CFG(nixlf), req->rx_cfg); + + /* Configure pkind for TX parse config */ + cfg = NPC_TX_DEF_PKIND; + rvu_write64(rvu, blkaddr, NIX_AF_LFX_TX_PARSE_CFG(nixlf), cfg); + + intf = is_afvf(pcifunc) ? NIX_INTF_TYPE_LBK : NIX_INTF_TYPE_CGX; + if (is_sdp_pfvf(pcifunc)) + intf = NIX_INTF_TYPE_SDP; + + err = nix_interface_init(rvu, pcifunc, intf, nixlf, rsp, + !!(req->flags & NIX_LF_LBK_BLK_SEL)); + if (err) + goto free_mem; + + /* Disable NPC entries as NIXLF's contexts are not initialized yet */ + rvu_npc_disable_default_entries(rvu, pcifunc, nixlf); + + /* Configure RX VTAG Type 7 (strip) for vf vlan */ + rvu_write64(rvu, blkaddr, + NIX_AF_LFX_RX_VTAG_TYPEX(nixlf, NIX_AF_LFX_RX_VTAG_TYPE7), + VTAGSIZE_T4 | VTAG_STRIP); + + goto exit; + +free_mem: + nix_ctx_free(rvu, pfvf); + rc = -ENOMEM; + +exit: + /* Set macaddr of this PF/VF */ + ether_addr_copy(rsp->mac_addr, pfvf->mac_addr); + + /* set SQB size info */ + cfg = rvu_read64(rvu, blkaddr, NIX_AF_SQ_CONST); + rsp->sqb_size = (cfg >> 34) & 0xFFFF; + rsp->rx_chan_base = pfvf->rx_chan_base; + rsp->tx_chan_base = pfvf->tx_chan_base; + rsp->rx_chan_cnt = pfvf->rx_chan_cnt; + rsp->tx_chan_cnt = pfvf->tx_chan_cnt; + rsp->lso_tsov4_idx = NIX_LSO_FORMAT_IDX_TSOV4; + rsp->lso_tsov6_idx = NIX_LSO_FORMAT_IDX_TSOV6; + /* Get HW supported stat count */ + cfg = rvu_read64(rvu, blkaddr, NIX_AF_CONST1); + rsp->lf_rx_stats = ((cfg >> 32) & 0xFF); + rsp->lf_tx_stats = ((cfg >> 24) & 0xFF); + /* Get count of CQ IRQs and error IRQs supported per LF */ + cfg = rvu_read64(rvu, blkaddr, NIX_AF_CONST2); + rsp->qints = ((cfg >> 12) & 0xFFF); + rsp->cints = ((cfg >> 24) & 0xFFF); + rsp->cgx_links = hw->cgx_links; + rsp->lbk_links = hw->lbk_links; + rsp->sdp_links = hw->sdp_links; + + return rc; +} + +int rvu_mbox_handler_nix_lf_free(struct rvu *rvu, struct nix_lf_free_req *req, + struct msg_rsp *rsp) +{ + struct rvu_hwinfo *hw = rvu->hw; + u16 pcifunc = req->hdr.pcifunc; + struct rvu_block *block; + int blkaddr, nixlf, err; + struct rvu_pfvf *pfvf; + + pfvf = rvu_get_pfvf(rvu, pcifunc); + blkaddr = rvu_get_blkaddr(rvu, BLKTYPE_NIX, pcifunc); + if (!pfvf->nixlf || blkaddr < 0) + return NIX_AF_ERR_AF_LF_INVALID; + + block = &hw->block[blkaddr]; + nixlf = rvu_get_lf(rvu, block, pcifunc, 0); + if (nixlf < 0) + return NIX_AF_ERR_AF_LF_INVALID; + + if (req->flags & NIX_LF_DISABLE_FLOWS) + rvu_npc_disable_mcam_entries(rvu, pcifunc, nixlf); + else + rvu_npc_free_mcam_entries(rvu, pcifunc, nixlf); + + /* Free any tx vtag def entries used by this NIX LF */ + if (!(req->flags & NIX_LF_DONT_FREE_TX_VTAG)) + nix_free_tx_vtag_entries(rvu, pcifunc); + + nix_interface_deinit(rvu, pcifunc, nixlf); + + /* Reset this NIX LF */ + err = rvu_lf_reset(rvu, block, nixlf); + if (err) { + dev_err(rvu->dev, "Failed to reset NIX%d LF%d\n", + block->addr - BLKADDR_NIX0, nixlf); + return NIX_AF_ERR_LF_RESET; + } + + nix_ctx_free(rvu, pfvf); + + return 0; +} + +int rvu_mbox_handler_nix_mark_format_cfg(struct rvu *rvu, + struct nix_mark_format_cfg *req, + struct nix_mark_format_cfg_rsp *rsp) +{ + u16 pcifunc = req->hdr.pcifunc; + struct nix_hw *nix_hw; + struct rvu_pfvf *pfvf; + int blkaddr, rc; + u32 cfg; + + pfvf = rvu_get_pfvf(rvu, pcifunc); + blkaddr = rvu_get_blkaddr(rvu, BLKTYPE_NIX, pcifunc); + if (!pfvf->nixlf || blkaddr < 0) + return NIX_AF_ERR_AF_LF_INVALID; + + nix_hw = get_nix_hw(rvu->hw, blkaddr); + if (!nix_hw) + return NIX_AF_ERR_INVALID_NIXBLK; + + cfg = (((u32)req->offset & 0x7) << 16) | + (((u32)req->y_mask & 0xF) << 12) | + (((u32)req->y_val & 0xF) << 8) | + (((u32)req->r_mask & 0xF) << 4) | ((u32)req->r_val & 0xF); + + rc = rvu_nix_reserve_mark_format(rvu, nix_hw, blkaddr, cfg); + if (rc < 0) { + dev_err(rvu->dev, "No mark_format_ctl for (pf:%d, vf:%d)", + rvu_get_pf(pcifunc), pcifunc & RVU_PFVF_FUNC_MASK); + return NIX_AF_ERR_MARK_CFG_FAIL; + } + + rsp->mark_format_idx = rc; + return 0; +} + +/* Handle shaper update specially for few revisions */ +static bool +handle_txschq_shaper_update(struct rvu *rvu, int blkaddr, int nixlf, + int lvl, u64 reg, u64 regval) +{ + u64 regbase, oldval, sw_xoff = 0; + u64 dbgval, md_debug0 = 0; + unsigned long poll_tmo; + bool rate_reg = 0; + u32 schq; + + regbase = reg & 0xFFFF; + schq = TXSCHQ_IDX(reg, TXSCHQ_IDX_SHIFT); + + /* Check for rate register */ + switch (lvl) { + case NIX_TXSCH_LVL_TL1: + md_debug0 = NIX_AF_TL1X_MD_DEBUG0(schq); + sw_xoff = NIX_AF_TL1X_SW_XOFF(schq); + + rate_reg = !!(regbase == NIX_AF_TL1X_CIR(0)); + break; + case NIX_TXSCH_LVL_TL2: + md_debug0 = NIX_AF_TL2X_MD_DEBUG0(schq); + sw_xoff = NIX_AF_TL2X_SW_XOFF(schq); + + rate_reg = (regbase == NIX_AF_TL2X_CIR(0) || + regbase == NIX_AF_TL2X_PIR(0)); + break; + case NIX_TXSCH_LVL_TL3: + md_debug0 = NIX_AF_TL3X_MD_DEBUG0(schq); + sw_xoff = NIX_AF_TL3X_SW_XOFF(schq); + + rate_reg = (regbase == NIX_AF_TL3X_CIR(0) || + regbase == NIX_AF_TL3X_PIR(0)); + break; + case NIX_TXSCH_LVL_TL4: + md_debug0 = NIX_AF_TL4X_MD_DEBUG0(schq); + sw_xoff = NIX_AF_TL4X_SW_XOFF(schq); + + rate_reg = (regbase == NIX_AF_TL4X_CIR(0) || + regbase == NIX_AF_TL4X_PIR(0)); + break; + case NIX_TXSCH_LVL_MDQ: + sw_xoff = NIX_AF_MDQX_SW_XOFF(schq); + rate_reg = (regbase == NIX_AF_MDQX_CIR(0) || + regbase == NIX_AF_MDQX_PIR(0)); + break; + } + + if (!rate_reg) + return false; + + /* Nothing special to do when state is not toggled */ + oldval = rvu_read64(rvu, blkaddr, reg); + if ((oldval & 0x1) == (regval & 0x1)) { + rvu_write64(rvu, blkaddr, reg, regval); + return true; + } + + /* PIR/CIR disable */ + if (!(regval & 0x1)) { + rvu_write64(rvu, blkaddr, sw_xoff, 1); + rvu_write64(rvu, blkaddr, reg, 0); + udelay(4); + rvu_write64(rvu, blkaddr, sw_xoff, 0); + return true; + } + + /* PIR/CIR enable */ + rvu_write64(rvu, blkaddr, sw_xoff, 1); + if (md_debug0) { + poll_tmo = jiffies + usecs_to_jiffies(10000); + /* Wait until VLD(bit32) == 1 or C_CON(bit48) == 0 */ + do { + if (time_after(jiffies, poll_tmo)) { + dev_err(rvu->dev, + "NIXLF%d: TLX%u(lvl %u) CIR/PIR enable failed\n", + nixlf, schq, lvl); + goto exit; + } + usleep_range(1, 5); + dbgval = rvu_read64(rvu, blkaddr, md_debug0); + } while (!(dbgval & BIT_ULL(32)) && (dbgval & BIT_ULL(48))); + } + rvu_write64(rvu, blkaddr, reg, regval); +exit: + rvu_write64(rvu, blkaddr, sw_xoff, 0); + return true; +} + +static void nix_reset_tx_schedule(struct rvu *rvu, int blkaddr, + int lvl, int schq) +{ + u64 tlx_parent = 0, tlx_schedule = 0; + + switch (lvl) { + case NIX_TXSCH_LVL_TL2: + tlx_parent = NIX_AF_TL2X_PARENT(schq); + tlx_schedule = NIX_AF_TL2X_SCHEDULE(schq); + break; + case NIX_TXSCH_LVL_TL3: + tlx_parent = NIX_AF_TL3X_PARENT(schq); + tlx_schedule = NIX_AF_TL3X_SCHEDULE(schq); + break; + case NIX_TXSCH_LVL_TL4: + tlx_parent = NIX_AF_TL4X_PARENT(schq); + tlx_schedule = NIX_AF_TL4X_SCHEDULE(schq); + break; + case NIX_TXSCH_LVL_MDQ: + /* no need to reset SMQ_CFG as HW clears this CSR + * on SMQ flush + */ + tlx_parent = NIX_AF_MDQX_PARENT(schq); + tlx_schedule = NIX_AF_MDQX_SCHEDULE(schq); + break; + default: + return; + } + + if (tlx_parent) + rvu_write64(rvu, blkaddr, tlx_parent, 0x0); + + if (tlx_schedule) + rvu_write64(rvu, blkaddr, tlx_schedule, 0x0); +} + +/* Disable shaping of pkts by a scheduler queue + * at a given scheduler level. + */ +static void nix_reset_tx_shaping(struct rvu *rvu, int blkaddr, + int nixlf, int lvl, int schq) +{ + struct rvu_hwinfo *hw = rvu->hw; + u64 cir_reg = 0, pir_reg = 0; + u64 cfg; + + switch (lvl) { + case NIX_TXSCH_LVL_TL1: + cir_reg = NIX_AF_TL1X_CIR(schq); + pir_reg = 0; /* PIR not available at TL1 */ + break; + case NIX_TXSCH_LVL_TL2: + cir_reg = NIX_AF_TL2X_CIR(schq); + pir_reg = NIX_AF_TL2X_PIR(schq); + break; + case NIX_TXSCH_LVL_TL3: + cir_reg = NIX_AF_TL3X_CIR(schq); + pir_reg = NIX_AF_TL3X_PIR(schq); + break; + case NIX_TXSCH_LVL_TL4: + cir_reg = NIX_AF_TL4X_CIR(schq); + pir_reg = NIX_AF_TL4X_PIR(schq); + break; + case NIX_TXSCH_LVL_MDQ: + cir_reg = NIX_AF_MDQX_CIR(schq); + pir_reg = NIX_AF_MDQX_PIR(schq); + break; + } + + /* Shaper state toggle needs wait/poll */ + if (hw->cap.nix_shaper_toggle_wait) { + if (cir_reg) + handle_txschq_shaper_update(rvu, blkaddr, nixlf, + lvl, cir_reg, 0); + if (pir_reg) + handle_txschq_shaper_update(rvu, blkaddr, nixlf, + lvl, pir_reg, 0); + return; + } + + if (!cir_reg) + return; + cfg = rvu_read64(rvu, blkaddr, cir_reg); + rvu_write64(rvu, blkaddr, cir_reg, cfg & ~BIT_ULL(0)); + + if (!pir_reg) + return; + cfg = rvu_read64(rvu, blkaddr, pir_reg); + rvu_write64(rvu, blkaddr, pir_reg, cfg & ~BIT_ULL(0)); +} + +static void nix_reset_tx_linkcfg(struct rvu *rvu, int blkaddr, + int lvl, int schq) +{ + struct rvu_hwinfo *hw = rvu->hw; + int link_level; + int link; + + if (lvl >= hw->cap.nix_tx_aggr_lvl) + return; + + /* Reset TL4's SDP link config */ + if (lvl == NIX_TXSCH_LVL_TL4) + rvu_write64(rvu, blkaddr, NIX_AF_TL4X_SDP_LINK_CFG(schq), 0x00); + + link_level = rvu_read64(rvu, blkaddr, NIX_AF_PSE_CHANNEL_LEVEL) & 0x01 ? + NIX_TXSCH_LVL_TL3 : NIX_TXSCH_LVL_TL2; + if (lvl != link_level) + return; + + /* Reset TL2's CGX or LBK link config */ + for (link = 0; link < (hw->cgx_links + hw->lbk_links); link++) + rvu_write64(rvu, blkaddr, + NIX_AF_TL3_TL2X_LINKX_CFG(schq, link), 0x00); +} + +static void nix_clear_tx_xoff(struct rvu *rvu, int blkaddr, + int lvl, int schq) +{ + struct rvu_hwinfo *hw = rvu->hw; + u64 reg; + + /* Skip this if shaping is not supported */ + if (!hw->cap.nix_shaping) + return; + + /* Clear level specific SW_XOFF */ + switch (lvl) { + case NIX_TXSCH_LVL_TL1: + reg = NIX_AF_TL1X_SW_XOFF(schq); + break; + case NIX_TXSCH_LVL_TL2: + reg = NIX_AF_TL2X_SW_XOFF(schq); + break; + case NIX_TXSCH_LVL_TL3: + reg = NIX_AF_TL3X_SW_XOFF(schq); + break; + case NIX_TXSCH_LVL_TL4: + reg = NIX_AF_TL4X_SW_XOFF(schq); + break; + case NIX_TXSCH_LVL_MDQ: + reg = NIX_AF_MDQX_SW_XOFF(schq); + break; + default: + return; + } + + rvu_write64(rvu, blkaddr, reg, 0x0); +} + +static int nix_get_tx_link(struct rvu *rvu, u16 pcifunc) +{ + struct rvu_hwinfo *hw = rvu->hw; + int pf = rvu_get_pf(pcifunc); + u8 cgx_id = 0, lmac_id = 0; + + if (is_afvf(pcifunc)) {/* LBK links */ + return hw->cgx_links; + } else if (is_pf_cgxmapped(rvu, pf)) { + rvu_get_cgx_lmac_id(rvu->pf2cgxlmac_map[pf], &cgx_id, &lmac_id); + return (cgx_id * hw->lmac_per_cgx) + lmac_id; + } + + /* SDP link */ + return hw->cgx_links + hw->lbk_links; +} + +static void nix_get_txschq_range(struct rvu *rvu, u16 pcifunc, + int link, int *start, int *end) +{ + struct rvu_hwinfo *hw = rvu->hw; + int pf = rvu_get_pf(pcifunc); + + if (is_afvf(pcifunc)) { /* LBK links */ + *start = hw->cap.nix_txsch_per_cgx_lmac * link; + *end = *start + hw->cap.nix_txsch_per_lbk_lmac; + } else if (is_pf_cgxmapped(rvu, pf)) { /* CGX links */ + *start = hw->cap.nix_txsch_per_cgx_lmac * link; + *end = *start + hw->cap.nix_txsch_per_cgx_lmac; + } else { /* SDP link */ + *start = (hw->cap.nix_txsch_per_cgx_lmac * hw->cgx_links) + + (hw->cap.nix_txsch_per_lbk_lmac * hw->lbk_links); + *end = *start + hw->cap.nix_txsch_per_sdp_lmac; + } +} + +static int nix_check_txschq_alloc_req(struct rvu *rvu, int lvl, u16 pcifunc, + struct nix_hw *nix_hw, + struct nix_txsch_alloc_req *req) +{ + struct rvu_hwinfo *hw = rvu->hw; + int schq, req_schq, free_cnt; + struct nix_txsch *txsch; + int link, start, end; + + txsch = &nix_hw->txsch[lvl]; + req_schq = req->schq_contig[lvl] + req->schq[lvl]; + + if (!req_schq) + return 0; + + link = nix_get_tx_link(rvu, pcifunc); + + /* For traffic aggregating scheduler level, one queue is enough */ + if (lvl >= hw->cap.nix_tx_aggr_lvl) { + if (req_schq != 1) + return NIX_AF_ERR_TLX_ALLOC_FAIL; + return 0; + } + + /* Get free SCHQ count and check if request can be accomodated */ + if (hw->cap.nix_fixed_txschq_mapping) { + nix_get_txschq_range(rvu, pcifunc, link, &start, &end); + schq = start + (pcifunc & RVU_PFVF_FUNC_MASK); + if (end <= txsch->schq.max && schq < end && + !test_bit(schq, txsch->schq.bmap)) + free_cnt = 1; + else + free_cnt = 0; + } else { + free_cnt = rvu_rsrc_free_count(&txsch->schq); + } + + if (free_cnt < req_schq || req->schq[lvl] > MAX_TXSCHQ_PER_FUNC || + req->schq_contig[lvl] > MAX_TXSCHQ_PER_FUNC) + return NIX_AF_ERR_TLX_ALLOC_FAIL; + + /* If contiguous queues are needed, check for availability */ + if (!hw->cap.nix_fixed_txschq_mapping && req->schq_contig[lvl] && + !rvu_rsrc_check_contig(&txsch->schq, req->schq_contig[lvl])) + return NIX_AF_ERR_TLX_ALLOC_FAIL; + + return 0; +} + +static void nix_txsch_alloc(struct rvu *rvu, struct nix_txsch *txsch, + struct nix_txsch_alloc_rsp *rsp, + int lvl, int start, int end) +{ + struct rvu_hwinfo *hw = rvu->hw; + u16 pcifunc = rsp->hdr.pcifunc; + int idx, schq; + + /* For traffic aggregating levels, queue alloc is based + * on transmit link to which PF_FUNC is mapped to. + */ + if (lvl >= hw->cap.nix_tx_aggr_lvl) { + /* A single TL queue is allocated */ + if (rsp->schq_contig[lvl]) { + rsp->schq_contig[lvl] = 1; + rsp->schq_contig_list[lvl][0] = start; + } + + /* Both contig and non-contig reqs doesn't make sense here */ + if (rsp->schq_contig[lvl]) + rsp->schq[lvl] = 0; + + if (rsp->schq[lvl]) { + rsp->schq[lvl] = 1; + rsp->schq_list[lvl][0] = start; + } + return; + } + + /* Adjust the queue request count if HW supports + * only one queue per level configuration. + */ + if (hw->cap.nix_fixed_txschq_mapping) { + idx = pcifunc & RVU_PFVF_FUNC_MASK; + schq = start + idx; + if (idx >= (end - start) || test_bit(schq, txsch->schq.bmap)) { + rsp->schq_contig[lvl] = 0; + rsp->schq[lvl] = 0; + return; + } + + if (rsp->schq_contig[lvl]) { + rsp->schq_contig[lvl] = 1; + set_bit(schq, txsch->schq.bmap); + rsp->schq_contig_list[lvl][0] = schq; + rsp->schq[lvl] = 0; + } else if (rsp->schq[lvl]) { + rsp->schq[lvl] = 1; + set_bit(schq, txsch->schq.bmap); + rsp->schq_list[lvl][0] = schq; + } + return; + } + + /* Allocate contiguous queue indices requesty first */ + if (rsp->schq_contig[lvl]) { + schq = bitmap_find_next_zero_area(txsch->schq.bmap, + txsch->schq.max, start, + rsp->schq_contig[lvl], 0); + if (schq >= end) + rsp->schq_contig[lvl] = 0; + for (idx = 0; idx < rsp->schq_contig[lvl]; idx++) { + set_bit(schq, txsch->schq.bmap); + rsp->schq_contig_list[lvl][idx] = schq; + schq++; + } + } + + /* Allocate non-contiguous queue indices */ + if (rsp->schq[lvl]) { + idx = 0; + for (schq = start; schq < end; schq++) { + if (!test_bit(schq, txsch->schq.bmap)) { + set_bit(schq, txsch->schq.bmap); + rsp->schq_list[lvl][idx++] = schq; + } + if (idx == rsp->schq[lvl]) + break; + } + /* Update how many were allocated */ + rsp->schq[lvl] = idx; + } +} + +int rvu_mbox_handler_nix_txsch_alloc(struct rvu *rvu, + struct nix_txsch_alloc_req *req, + struct nix_txsch_alloc_rsp *rsp) +{ + struct rvu_hwinfo *hw = rvu->hw; + u16 pcifunc = req->hdr.pcifunc; + int link, blkaddr, rc = 0; + int lvl, idx, start, end; + struct nix_txsch *txsch; + struct nix_hw *nix_hw; + u32 *pfvf_map; + int nixlf; + u16 schq; + + rc = nix_get_nixlf(rvu, pcifunc, &nixlf, &blkaddr); + if (rc) + return rc; + + nix_hw = get_nix_hw(rvu->hw, blkaddr); + if (!nix_hw) + return NIX_AF_ERR_INVALID_NIXBLK; + + mutex_lock(&rvu->rsrc_lock); + + /* Check if request is valid as per HW capabilities + * and can be accomodated. + */ + for (lvl = 0; lvl < NIX_TXSCH_LVL_CNT; lvl++) { + rc = nix_check_txschq_alloc_req(rvu, lvl, pcifunc, nix_hw, req); + if (rc) + goto err; + } + + /* Allocate requested Tx scheduler queues */ + for (lvl = 0; lvl < NIX_TXSCH_LVL_CNT; lvl++) { + txsch = &nix_hw->txsch[lvl]; + pfvf_map = txsch->pfvf_map; + + if (!req->schq[lvl] && !req->schq_contig[lvl]) + continue; + + rsp->schq[lvl] = req->schq[lvl]; + rsp->schq_contig[lvl] = req->schq_contig[lvl]; + + link = nix_get_tx_link(rvu, pcifunc); + + if (lvl >= hw->cap.nix_tx_aggr_lvl) { + start = link; + end = link; + } else if (hw->cap.nix_fixed_txschq_mapping) { + nix_get_txschq_range(rvu, pcifunc, link, &start, &end); + } else { + start = 0; + end = txsch->schq.max; + } + + nix_txsch_alloc(rvu, txsch, rsp, lvl, start, end); + + /* Reset queue config */ + for (idx = 0; idx < req->schq_contig[lvl]; idx++) { + schq = rsp->schq_contig_list[lvl][idx]; + if (!(TXSCH_MAP_FLAGS(pfvf_map[schq]) & + NIX_TXSCHQ_CFG_DONE)) + pfvf_map[schq] = TXSCH_MAP(pcifunc, 0); + nix_reset_tx_linkcfg(rvu, blkaddr, lvl, schq); + nix_reset_tx_shaping(rvu, blkaddr, nixlf, lvl, schq); + nix_reset_tx_schedule(rvu, blkaddr, lvl, schq); + } + + for (idx = 0; idx < req->schq[lvl]; idx++) { + schq = rsp->schq_list[lvl][idx]; + if (!(TXSCH_MAP_FLAGS(pfvf_map[schq]) & + NIX_TXSCHQ_CFG_DONE)) + pfvf_map[schq] = TXSCH_MAP(pcifunc, 0); + nix_reset_tx_linkcfg(rvu, blkaddr, lvl, schq); + nix_reset_tx_shaping(rvu, blkaddr, nixlf, lvl, schq); + nix_reset_tx_schedule(rvu, blkaddr, lvl, schq); + } + } + + rsp->aggr_level = hw->cap.nix_tx_aggr_lvl; + rsp->aggr_lvl_rr_prio = TXSCH_TL1_DFLT_RR_PRIO; + rsp->link_cfg_lvl = rvu_read64(rvu, blkaddr, + NIX_AF_PSE_CHANNEL_LEVEL) & 0x01 ? + NIX_TXSCH_LVL_TL3 : NIX_TXSCH_LVL_TL2; + goto exit; +err: + rc = NIX_AF_ERR_TLX_ALLOC_FAIL; +exit: + mutex_unlock(&rvu->rsrc_lock); + return rc; +} + +static int nix_smq_flush(struct rvu *rvu, int blkaddr, + int smq, u16 pcifunc, int nixlf) +{ + int pf = rvu_get_pf(pcifunc); + u8 cgx_id = 0, lmac_id = 0; + int err, restore_tx_en = 0; + u64 cfg; + + /* enable cgx tx if disabled */ + if (is_pf_cgxmapped(rvu, pf)) { + rvu_get_cgx_lmac_id(rvu->pf2cgxlmac_map[pf], &cgx_id, &lmac_id); + restore_tx_en = !rvu_cgx_config_tx(rvu_cgx_pdata(cgx_id, rvu), + lmac_id, true); + } + + cfg = rvu_read64(rvu, blkaddr, NIX_AF_SMQX_CFG(smq)); + /* Do SMQ flush and set enqueue xoff */ + cfg |= BIT_ULL(50) | BIT_ULL(49); + rvu_write64(rvu, blkaddr, NIX_AF_SMQX_CFG(smq), cfg); + + /* Disable backpressure from physical link, + * otherwise SMQ flush may stall. + */ + rvu_cgx_enadis_rx_bp(rvu, pf, false); + + /* Wait for flush to complete */ + err = rvu_poll_reg(rvu, blkaddr, + NIX_AF_SMQX_CFG(smq), BIT_ULL(49), true); + if (err) + dev_err(rvu->dev, + "NIXLF%d: SMQ%d flush failed\n", nixlf, smq); + + rvu_cgx_enadis_rx_bp(rvu, pf, true); + /* restore cgx tx state */ + if (restore_tx_en) + rvu_cgx_config_tx(rvu_cgx_pdata(cgx_id, rvu), lmac_id, false); + return err; +} + +static int nix_txschq_free(struct rvu *rvu, u16 pcifunc) +{ + int blkaddr, nixlf, lvl, schq, err; + struct rvu_hwinfo *hw = rvu->hw; + struct nix_txsch *txsch; + struct nix_hw *nix_hw; + u16 map_func; + + blkaddr = rvu_get_blkaddr(rvu, BLKTYPE_NIX, pcifunc); + if (blkaddr < 0) + return NIX_AF_ERR_AF_LF_INVALID; + + nix_hw = get_nix_hw(rvu->hw, blkaddr); + if (!nix_hw) + return NIX_AF_ERR_INVALID_NIXBLK; + + nixlf = rvu_get_lf(rvu, &hw->block[blkaddr], pcifunc, 0); + if (nixlf < 0) + return NIX_AF_ERR_AF_LF_INVALID; + + /* Disable TL2/3 queue links and all XOFF's before SMQ flush*/ + mutex_lock(&rvu->rsrc_lock); + for (lvl = NIX_TXSCH_LVL_MDQ; lvl < NIX_TXSCH_LVL_CNT; lvl++) { + txsch = &nix_hw->txsch[lvl]; + + if (lvl >= hw->cap.nix_tx_aggr_lvl) + continue; + + for (schq = 0; schq < txsch->schq.max; schq++) { + if (TXSCH_MAP_FUNC(txsch->pfvf_map[schq]) != pcifunc) + continue; + nix_reset_tx_linkcfg(rvu, blkaddr, lvl, schq); + nix_clear_tx_xoff(rvu, blkaddr, lvl, schq); + nix_reset_tx_shaping(rvu, blkaddr, nixlf, lvl, schq); + } + } + nix_clear_tx_xoff(rvu, blkaddr, NIX_TXSCH_LVL_TL1, + nix_get_tx_link(rvu, pcifunc)); + + /* On PF cleanup, clear cfg done flag as + * PF would have changed default config. + */ + if (!(pcifunc & RVU_PFVF_FUNC_MASK)) { + txsch = &nix_hw->txsch[NIX_TXSCH_LVL_TL1]; + schq = nix_get_tx_link(rvu, pcifunc); + /* Do not clear pcifunc in txsch->pfvf_map[schq] because + * VF might be using this TL1 queue + */ + map_func = TXSCH_MAP_FUNC(txsch->pfvf_map[schq]); + txsch->pfvf_map[schq] = TXSCH_SET_FLAG(map_func, 0x0); + } + + /* Flush SMQs */ + txsch = &nix_hw->txsch[NIX_TXSCH_LVL_SMQ]; + for (schq = 0; schq < txsch->schq.max; schq++) { + if (TXSCH_MAP_FUNC(txsch->pfvf_map[schq]) != pcifunc) + continue; + nix_smq_flush(rvu, blkaddr, schq, pcifunc, nixlf); + } + + /* Now free scheduler queues to free pool */ + for (lvl = 0; lvl < NIX_TXSCH_LVL_CNT; lvl++) { + /* TLs above aggregation level are shared across all PF + * and it's VFs, hence skip freeing them. + */ + if (lvl >= hw->cap.nix_tx_aggr_lvl) + continue; + + txsch = &nix_hw->txsch[lvl]; + for (schq = 0; schq < txsch->schq.max; schq++) { + if (TXSCH_MAP_FUNC(txsch->pfvf_map[schq]) != pcifunc) + continue; + nix_reset_tx_schedule(rvu, blkaddr, lvl, schq); + rvu_free_rsrc(&txsch->schq, schq); + txsch->pfvf_map[schq] = TXSCH_MAP(0, NIX_TXSCHQ_FREE); + } + } + mutex_unlock(&rvu->rsrc_lock); + + /* Sync cached info for this LF in NDC-TX to LLC/DRAM */ + rvu_write64(rvu, blkaddr, NIX_AF_NDC_TX_SYNC, BIT_ULL(12) | nixlf); + err = rvu_poll_reg(rvu, blkaddr, NIX_AF_NDC_TX_SYNC, BIT_ULL(12), true); + if (err) + dev_err(rvu->dev, "NDC-TX sync failed for NIXLF %d\n", nixlf); + + return 0; +} + +static int nix_txschq_free_one(struct rvu *rvu, + struct nix_txsch_free_req *req) +{ + struct rvu_hwinfo *hw = rvu->hw; + u16 pcifunc = req->hdr.pcifunc; + int lvl, schq, nixlf, blkaddr; + struct nix_txsch *txsch; + struct nix_hw *nix_hw; + u32 *pfvf_map; + int rc; + + blkaddr = rvu_get_blkaddr(rvu, BLKTYPE_NIX, pcifunc); + if (blkaddr < 0) + return NIX_AF_ERR_AF_LF_INVALID; + + nix_hw = get_nix_hw(rvu->hw, blkaddr); + if (!nix_hw) + return NIX_AF_ERR_INVALID_NIXBLK; + + nixlf = rvu_get_lf(rvu, &hw->block[blkaddr], pcifunc, 0); + if (nixlf < 0) + return NIX_AF_ERR_AF_LF_INVALID; + + lvl = req->schq_lvl; + schq = req->schq; + txsch = &nix_hw->txsch[lvl]; + + if (lvl >= hw->cap.nix_tx_aggr_lvl || schq >= txsch->schq.max) + return 0; + + pfvf_map = txsch->pfvf_map; + mutex_lock(&rvu->rsrc_lock); + + if (TXSCH_MAP_FUNC(pfvf_map[schq]) != pcifunc) { + rc = NIX_AF_ERR_TLX_INVALID; + goto err; + } + + /* Clear SW_XOFF of this resource only. + * For SMQ level, all path XOFF's + * need to be made clear by user + */ + nix_clear_tx_xoff(rvu, blkaddr, lvl, schq); + + nix_reset_tx_linkcfg(rvu, blkaddr, lvl, schq); + nix_reset_tx_shaping(rvu, blkaddr, nixlf, lvl, schq); + + /* Flush if it is a SMQ. Onus of disabling + * TL2/3 queue links before SMQ flush is on user + */ + if (lvl == NIX_TXSCH_LVL_SMQ && + nix_smq_flush(rvu, blkaddr, schq, pcifunc, nixlf)) { + rc = NIX_AF_SMQ_FLUSH_FAILED; + goto err; + } + + nix_reset_tx_schedule(rvu, blkaddr, lvl, schq); + + /* Free the resource */ + rvu_free_rsrc(&txsch->schq, schq); + txsch->pfvf_map[schq] = TXSCH_MAP(0, NIX_TXSCHQ_FREE); + mutex_unlock(&rvu->rsrc_lock); + return 0; +err: + mutex_unlock(&rvu->rsrc_lock); + return rc; +} + +int rvu_mbox_handler_nix_txsch_free(struct rvu *rvu, + struct nix_txsch_free_req *req, + struct msg_rsp *rsp) +{ + if (req->flags & TXSCHQ_FREE_ALL) + return nix_txschq_free(rvu, req->hdr.pcifunc); + else + return nix_txschq_free_one(rvu, req); +} + +static bool is_txschq_hierarchy_valid(struct rvu *rvu, u16 pcifunc, int blkaddr, + int lvl, u64 reg, u64 regval) +{ + u64 regbase = reg & 0xFFFF; + u16 schq, parent; + + if (!rvu_check_valid_reg(TXSCHQ_HWREGMAP, lvl, reg)) + return false; + + schq = TXSCHQ_IDX(reg, TXSCHQ_IDX_SHIFT); + /* Check if this schq belongs to this PF/VF or not */ + if (!is_valid_txschq(rvu, blkaddr, lvl, pcifunc, schq)) + return false; + + parent = (regval >> 16) & 0x1FF; + /* Validate MDQ's TL4 parent */ + if (regbase == NIX_AF_MDQX_PARENT(0) && + !is_valid_txschq(rvu, blkaddr, NIX_TXSCH_LVL_TL4, pcifunc, parent)) + return false; + + /* Validate TL4's TL3 parent */ + if (regbase == NIX_AF_TL4X_PARENT(0) && + !is_valid_txschq(rvu, blkaddr, NIX_TXSCH_LVL_TL3, pcifunc, parent)) + return false; + + /* Validate TL3's TL2 parent */ + if (regbase == NIX_AF_TL3X_PARENT(0) && + !is_valid_txschq(rvu, blkaddr, NIX_TXSCH_LVL_TL2, pcifunc, parent)) + return false; + + /* Validate TL2's TL1 parent */ + if (regbase == NIX_AF_TL2X_PARENT(0) && + !is_valid_txschq(rvu, blkaddr, NIX_TXSCH_LVL_TL1, pcifunc, parent)) + return false; + + return true; +} + +static bool is_txschq_shaping_valid(struct rvu_hwinfo *hw, int lvl, u64 reg) +{ + u64 regbase; + + if (hw->cap.nix_shaping) + return true; + + /* If shaping and coloring is not supported, then + * *_CIR and *_PIR registers should not be configured. + */ + regbase = reg & 0xFFFF; + + switch (lvl) { + case NIX_TXSCH_LVL_TL1: + if (regbase == NIX_AF_TL1X_CIR(0)) + return false; + break; + case NIX_TXSCH_LVL_TL2: + if (regbase == NIX_AF_TL2X_CIR(0) || + regbase == NIX_AF_TL2X_PIR(0)) + return false; + break; + case NIX_TXSCH_LVL_TL3: + if (regbase == NIX_AF_TL3X_CIR(0) || + regbase == NIX_AF_TL3X_PIR(0)) + return false; + break; + case NIX_TXSCH_LVL_TL4: + if (regbase == NIX_AF_TL4X_CIR(0) || + regbase == NIX_AF_TL4X_PIR(0)) + return false; + break; + case NIX_TXSCH_LVL_MDQ: + if (regbase == NIX_AF_MDQX_CIR(0) || + regbase == NIX_AF_MDQX_PIR(0)) + return false; + break; + } + return true; +} + +static void nix_tl1_default_cfg(struct rvu *rvu, struct nix_hw *nix_hw, + u16 pcifunc, int blkaddr) +{ + u32 *pfvf_map; + int schq; + + schq = nix_get_tx_link(rvu, pcifunc); + pfvf_map = nix_hw->txsch[NIX_TXSCH_LVL_TL1].pfvf_map; + /* Skip if PF has already done the config */ + if (TXSCH_MAP_FLAGS(pfvf_map[schq]) & NIX_TXSCHQ_CFG_DONE) + return; + rvu_write64(rvu, blkaddr, NIX_AF_TL1X_TOPOLOGY(schq), + (TXSCH_TL1_DFLT_RR_PRIO << 1)); + + /* On OcteonTx2 the config was in bytes and newer silcons + * it's changed to weight. + */ + if (!rvu->hw->cap.nix_common_dwrr_mtu) + rvu_write64(rvu, blkaddr, NIX_AF_TL1X_SCHEDULE(schq), + TXSCH_TL1_DFLT_RR_QTM); + else + rvu_write64(rvu, blkaddr, NIX_AF_TL1X_SCHEDULE(schq), + CN10K_MAX_DWRR_WEIGHT); + + rvu_write64(rvu, blkaddr, NIX_AF_TL1X_CIR(schq), 0x00); + pfvf_map[schq] = TXSCH_SET_FLAG(pfvf_map[schq], NIX_TXSCHQ_CFG_DONE); +} + +/* Register offset - [15:0] + * Scheduler Queue number - [25:16] + */ +#define NIX_TX_SCHQ_MASK GENMASK_ULL(25, 0) + +static int nix_txschq_cfg_read(struct rvu *rvu, struct nix_hw *nix_hw, + int blkaddr, struct nix_txschq_config *req, + struct nix_txschq_config *rsp) +{ + u16 pcifunc = req->hdr.pcifunc; + int idx, schq; + u64 reg; + + for (idx = 0; idx < req->num_regs; idx++) { + reg = req->reg[idx]; + reg &= NIX_TX_SCHQ_MASK; + schq = TXSCHQ_IDX(reg, TXSCHQ_IDX_SHIFT); + if (!rvu_check_valid_reg(TXSCHQ_HWREGMAP, req->lvl, reg) || + !is_valid_txschq(rvu, blkaddr, req->lvl, pcifunc, schq)) + return NIX_AF_INVAL_TXSCHQ_CFG; + rsp->regval[idx] = rvu_read64(rvu, blkaddr, reg); + } + rsp->lvl = req->lvl; + rsp->num_regs = req->num_regs; + return 0; +} + +static void rvu_nix_tx_tl2_cfg(struct rvu *rvu, int blkaddr, + u16 pcifunc, struct nix_txsch *txsch) +{ + struct rvu_hwinfo *hw = rvu->hw; + int lbk_link_start, lbk_links; + u8 pf = rvu_get_pf(pcifunc); + int schq; + + if (!is_pf_cgxmapped(rvu, pf)) + return; + + lbk_link_start = hw->cgx_links; + + for (schq = 0; schq < txsch->schq.max; schq++) { + if (TXSCH_MAP_FUNC(txsch->pfvf_map[schq]) != pcifunc) + continue; + /* Enable all LBK links with channel 63 by default so that + * packets can be sent to LBK with a NPC TX MCAM rule + */ + lbk_links = hw->lbk_links; + while (lbk_links--) + rvu_write64(rvu, blkaddr, + NIX_AF_TL3_TL2X_LINKX_CFG(schq, + lbk_link_start + + lbk_links), + BIT_ULL(12) | RVU_SWITCH_LBK_CHAN); + } +} + +int rvu_mbox_handler_nix_txschq_cfg(struct rvu *rvu, + struct nix_txschq_config *req, + struct nix_txschq_config *rsp) +{ + u64 reg, val, regval, schq_regbase, val_mask; + struct rvu_hwinfo *hw = rvu->hw; + u16 pcifunc = req->hdr.pcifunc; + struct nix_txsch *txsch; + struct nix_hw *nix_hw; + int blkaddr, idx, err; + int nixlf, schq; + u32 *pfvf_map; + + if (req->lvl >= NIX_TXSCH_LVL_CNT || + req->num_regs > MAX_REGS_PER_MBOX_MSG) + return NIX_AF_INVAL_TXSCHQ_CFG; + + err = nix_get_nixlf(rvu, pcifunc, &nixlf, &blkaddr); + if (err) + return err; + + nix_hw = get_nix_hw(rvu->hw, blkaddr); + if (!nix_hw) + return NIX_AF_ERR_INVALID_NIXBLK; + + if (req->read) + return nix_txschq_cfg_read(rvu, nix_hw, blkaddr, req, rsp); + + txsch = &nix_hw->txsch[req->lvl]; + pfvf_map = txsch->pfvf_map; + + if (req->lvl >= hw->cap.nix_tx_aggr_lvl && + pcifunc & RVU_PFVF_FUNC_MASK) { + mutex_lock(&rvu->rsrc_lock); + if (req->lvl == NIX_TXSCH_LVL_TL1) + nix_tl1_default_cfg(rvu, nix_hw, pcifunc, blkaddr); + mutex_unlock(&rvu->rsrc_lock); + return 0; + } + + for (idx = 0; idx < req->num_regs; idx++) { + reg = req->reg[idx]; + reg &= NIX_TX_SCHQ_MASK; + regval = req->regval[idx]; + schq_regbase = reg & 0xFFFF; + val_mask = req->regval_mask[idx]; + + if (!is_txschq_hierarchy_valid(rvu, pcifunc, blkaddr, + txsch->lvl, reg, regval)) + return NIX_AF_INVAL_TXSCHQ_CFG; + + /* Check if shaping and coloring is supported */ + if (!is_txschq_shaping_valid(hw, req->lvl, reg)) + continue; + + val = rvu_read64(rvu, blkaddr, reg); + regval = (val & val_mask) | (regval & ~val_mask); + + /* Handle shaping state toggle specially */ + if (hw->cap.nix_shaper_toggle_wait && + handle_txschq_shaper_update(rvu, blkaddr, nixlf, + req->lvl, reg, regval)) + continue; + + /* Replace PF/VF visible NIXLF slot with HW NIXLF id */ + if (schq_regbase == NIX_AF_SMQX_CFG(0)) { + nixlf = rvu_get_lf(rvu, &hw->block[blkaddr], + pcifunc, 0); + regval &= ~(0x7FULL << 24); + regval |= ((u64)nixlf << 24); + } + + /* Clear 'BP_ENA' config, if it's not allowed */ + if (!hw->cap.nix_tx_link_bp) { + if (schq_regbase == NIX_AF_TL4X_SDP_LINK_CFG(0) || + (schq_regbase & 0xFF00) == + NIX_AF_TL3_TL2X_LINKX_CFG(0, 0)) + regval &= ~BIT_ULL(13); + } + + /* Mark config as done for TL1 by PF */ + if (schq_regbase >= NIX_AF_TL1X_SCHEDULE(0) && + schq_regbase <= NIX_AF_TL1X_GREEN_BYTES(0)) { + schq = TXSCHQ_IDX(reg, TXSCHQ_IDX_SHIFT); + mutex_lock(&rvu->rsrc_lock); + pfvf_map[schq] = TXSCH_SET_FLAG(pfvf_map[schq], + NIX_TXSCHQ_CFG_DONE); + mutex_unlock(&rvu->rsrc_lock); + } + + /* SMQ flush is special hence split register writes such + * that flush first and write rest of the bits later. + */ + if (schq_regbase == NIX_AF_SMQX_CFG(0) && + (regval & BIT_ULL(49))) { + schq = TXSCHQ_IDX(reg, TXSCHQ_IDX_SHIFT); + nix_smq_flush(rvu, blkaddr, schq, pcifunc, nixlf); + regval &= ~BIT_ULL(49); + } + rvu_write64(rvu, blkaddr, reg, regval); + } + + rvu_nix_tx_tl2_cfg(rvu, blkaddr, pcifunc, + &nix_hw->txsch[NIX_TXSCH_LVL_TL2]); + return 0; +} + +static int nix_rx_vtag_cfg(struct rvu *rvu, int nixlf, int blkaddr, + struct nix_vtag_config *req) +{ + u64 regval = req->vtag_size; + + if (req->rx.vtag_type > NIX_AF_LFX_RX_VTAG_TYPE7 || + req->vtag_size > VTAGSIZE_T8) + return -EINVAL; + + /* RX VTAG Type 7 reserved for vf vlan */ + if (req->rx.vtag_type == NIX_AF_LFX_RX_VTAG_TYPE7) + return NIX_AF_ERR_RX_VTAG_INUSE; + + if (req->rx.capture_vtag) + regval |= BIT_ULL(5); + if (req->rx.strip_vtag) + regval |= BIT_ULL(4); + + rvu_write64(rvu, blkaddr, + NIX_AF_LFX_RX_VTAG_TYPEX(nixlf, req->rx.vtag_type), regval); + return 0; +} + +static int nix_tx_vtag_free(struct rvu *rvu, int blkaddr, + u16 pcifunc, int index) +{ + struct nix_hw *nix_hw = get_nix_hw(rvu->hw, blkaddr); + struct nix_txvlan *vlan; + + if (!nix_hw) + return NIX_AF_ERR_INVALID_NIXBLK; + + vlan = &nix_hw->txvlan; + if (vlan->entry2pfvf_map[index] != pcifunc) + return NIX_AF_ERR_PARAM; + + rvu_write64(rvu, blkaddr, + NIX_AF_TX_VTAG_DEFX_DATA(index), 0x0ull); + rvu_write64(rvu, blkaddr, + NIX_AF_TX_VTAG_DEFX_CTL(index), 0x0ull); + + vlan->entry2pfvf_map[index] = 0; + rvu_free_rsrc(&vlan->rsrc, index); + + return 0; +} + +static void nix_free_tx_vtag_entries(struct rvu *rvu, u16 pcifunc) +{ + struct nix_txvlan *vlan; + struct nix_hw *nix_hw; + int index, blkaddr; + + blkaddr = rvu_get_blkaddr(rvu, BLKTYPE_NIX, pcifunc); + if (blkaddr < 0) + return; + + nix_hw = get_nix_hw(rvu->hw, blkaddr); + if (!nix_hw) + return; + + vlan = &nix_hw->txvlan; + + mutex_lock(&vlan->rsrc_lock); + /* Scan all the entries and free the ones mapped to 'pcifunc' */ + for (index = 0; index < vlan->rsrc.max; index++) { + if (vlan->entry2pfvf_map[index] == pcifunc) + nix_tx_vtag_free(rvu, blkaddr, pcifunc, index); + } + mutex_unlock(&vlan->rsrc_lock); +} + +static int nix_tx_vtag_alloc(struct rvu *rvu, int blkaddr, + u64 vtag, u8 size) +{ + struct nix_hw *nix_hw = get_nix_hw(rvu->hw, blkaddr); + struct nix_txvlan *vlan; + u64 regval; + int index; + + if (!nix_hw) + return NIX_AF_ERR_INVALID_NIXBLK; + + vlan = &nix_hw->txvlan; + + mutex_lock(&vlan->rsrc_lock); + + index = rvu_alloc_rsrc(&vlan->rsrc); + if (index < 0) { + mutex_unlock(&vlan->rsrc_lock); + return index; + } + + mutex_unlock(&vlan->rsrc_lock); + + regval = size ? vtag : vtag << 32; + + rvu_write64(rvu, blkaddr, + NIX_AF_TX_VTAG_DEFX_DATA(index), regval); + rvu_write64(rvu, blkaddr, + NIX_AF_TX_VTAG_DEFX_CTL(index), size); + + return index; +} + +static int nix_tx_vtag_decfg(struct rvu *rvu, int blkaddr, + struct nix_vtag_config *req) +{ + struct nix_hw *nix_hw = get_nix_hw(rvu->hw, blkaddr); + u16 pcifunc = req->hdr.pcifunc; + int idx0 = req->tx.vtag0_idx; + int idx1 = req->tx.vtag1_idx; + struct nix_txvlan *vlan; + int err = 0; + + if (!nix_hw) + return NIX_AF_ERR_INVALID_NIXBLK; + + vlan = &nix_hw->txvlan; + if (req->tx.free_vtag0 && req->tx.free_vtag1) + if (vlan->entry2pfvf_map[idx0] != pcifunc || + vlan->entry2pfvf_map[idx1] != pcifunc) + return NIX_AF_ERR_PARAM; + + mutex_lock(&vlan->rsrc_lock); + + if (req->tx.free_vtag0) { + err = nix_tx_vtag_free(rvu, blkaddr, pcifunc, idx0); + if (err) + goto exit; + } + + if (req->tx.free_vtag1) + err = nix_tx_vtag_free(rvu, blkaddr, pcifunc, idx1); + +exit: + mutex_unlock(&vlan->rsrc_lock); + return err; +} + +static int nix_tx_vtag_cfg(struct rvu *rvu, int blkaddr, + struct nix_vtag_config *req, + struct nix_vtag_config_rsp *rsp) +{ + struct nix_hw *nix_hw = get_nix_hw(rvu->hw, blkaddr); + struct nix_txvlan *vlan; + u16 pcifunc = req->hdr.pcifunc; + + if (!nix_hw) + return NIX_AF_ERR_INVALID_NIXBLK; + + vlan = &nix_hw->txvlan; + if (req->tx.cfg_vtag0) { + rsp->vtag0_idx = + nix_tx_vtag_alloc(rvu, blkaddr, + req->tx.vtag0, req->vtag_size); + + if (rsp->vtag0_idx < 0) + return NIX_AF_ERR_TX_VTAG_NOSPC; + + vlan->entry2pfvf_map[rsp->vtag0_idx] = pcifunc; + } + + if (req->tx.cfg_vtag1) { + rsp->vtag1_idx = + nix_tx_vtag_alloc(rvu, blkaddr, + req->tx.vtag1, req->vtag_size); + + if (rsp->vtag1_idx < 0) + goto err_free; + + vlan->entry2pfvf_map[rsp->vtag1_idx] = pcifunc; + } + + return 0; + +err_free: + if (req->tx.cfg_vtag0) + nix_tx_vtag_free(rvu, blkaddr, pcifunc, rsp->vtag0_idx); + + return NIX_AF_ERR_TX_VTAG_NOSPC; +} + +int rvu_mbox_handler_nix_vtag_cfg(struct rvu *rvu, + struct nix_vtag_config *req, + struct nix_vtag_config_rsp *rsp) +{ + u16 pcifunc = req->hdr.pcifunc; + int blkaddr, nixlf, err; + + err = nix_get_nixlf(rvu, pcifunc, &nixlf, &blkaddr); + if (err) + return err; + + if (req->cfg_type) { + /* rx vtag configuration */ + err = nix_rx_vtag_cfg(rvu, nixlf, blkaddr, req); + if (err) + return NIX_AF_ERR_PARAM; + } else { + /* tx vtag configuration */ + if ((req->tx.cfg_vtag0 || req->tx.cfg_vtag1) && + (req->tx.free_vtag0 || req->tx.free_vtag1)) + return NIX_AF_ERR_PARAM; + + if (req->tx.cfg_vtag0 || req->tx.cfg_vtag1) + return nix_tx_vtag_cfg(rvu, blkaddr, req, rsp); + + if (req->tx.free_vtag0 || req->tx.free_vtag1) + return nix_tx_vtag_decfg(rvu, blkaddr, req); + } + + return 0; +} + +static int nix_blk_setup_mce(struct rvu *rvu, struct nix_hw *nix_hw, + int mce, u8 op, u16 pcifunc, int next, bool eol) +{ + struct nix_aq_enq_req aq_req; + int err; + + aq_req.hdr.pcifunc = 0; + aq_req.ctype = NIX_AQ_CTYPE_MCE; + aq_req.op = op; + aq_req.qidx = mce; + + /* Use RSS with RSS index 0 */ + aq_req.mce.op = 1; + aq_req.mce.index = 0; + aq_req.mce.eol = eol; + aq_req.mce.pf_func = pcifunc; + aq_req.mce.next = next; + + /* All fields valid */ + *(u64 *)(&aq_req.mce_mask) = ~0ULL; + + err = rvu_nix_blk_aq_enq_inst(rvu, nix_hw, &aq_req, NULL); + if (err) { + dev_err(rvu->dev, "Failed to setup Bcast MCE for PF%d:VF%d\n", + rvu_get_pf(pcifunc), pcifunc & RVU_PFVF_FUNC_MASK); + return err; + } + return 0; +} + +static int nix_update_mce_list_entry(struct nix_mce_list *mce_list, + u16 pcifunc, bool add) +{ + struct mce *mce, *tail = NULL; + bool delete = false; + + /* Scan through the current list */ + hlist_for_each_entry(mce, &mce_list->head, node) { + /* If already exists, then delete */ + if (mce->pcifunc == pcifunc && !add) { + delete = true; + break; + } else if (mce->pcifunc == pcifunc && add) { + /* entry already exists */ + return 0; + } + tail = mce; + } + + if (delete) { + hlist_del(&mce->node); + kfree(mce); + mce_list->count--; + return 0; + } + + if (!add) + return 0; + + /* Add a new one to the list, at the tail */ + mce = kzalloc(sizeof(*mce), GFP_KERNEL); + if (!mce) + return -ENOMEM; + mce->pcifunc = pcifunc; + if (!tail) + hlist_add_head(&mce->node, &mce_list->head); + else + hlist_add_behind(&mce->node, &tail->node); + mce_list->count++; + return 0; +} + +int nix_update_mce_list(struct rvu *rvu, u16 pcifunc, + struct nix_mce_list *mce_list, + int mce_idx, int mcam_index, bool add) +{ + int err = 0, idx, next_idx, last_idx, blkaddr, npc_blkaddr; + struct npc_mcam *mcam = &rvu->hw->mcam; + struct nix_mcast *mcast; + struct nix_hw *nix_hw; + struct mce *mce; + + if (!mce_list) + return -EINVAL; + + /* Get this PF/VF func's MCE index */ + idx = mce_idx + (pcifunc & RVU_PFVF_FUNC_MASK); + + if (idx > (mce_idx + mce_list->max)) { + dev_err(rvu->dev, + "%s: Idx %d > max MCE idx %d, for PF%d bcast list\n", + __func__, idx, mce_list->max, + pcifunc >> RVU_PFVF_PF_SHIFT); + return -EINVAL; + } + + err = nix_get_struct_ptrs(rvu, pcifunc, &nix_hw, &blkaddr); + if (err) + return err; + + mcast = &nix_hw->mcast; + mutex_lock(&mcast->mce_lock); + + err = nix_update_mce_list_entry(mce_list, pcifunc, add); + if (err) + goto end; + + /* Disable MCAM entry in NPC */ + if (!mce_list->count) { + npc_blkaddr = rvu_get_blkaddr(rvu, BLKTYPE_NPC, 0); + npc_enable_mcam_entry(rvu, mcam, npc_blkaddr, mcam_index, false); + goto end; + } + + /* Dump the updated list to HW */ + idx = mce_idx; + last_idx = idx + mce_list->count - 1; + hlist_for_each_entry(mce, &mce_list->head, node) { + if (idx > last_idx) + break; + + next_idx = idx + 1; + /* EOL should be set in last MCE */ + err = nix_blk_setup_mce(rvu, nix_hw, idx, NIX_AQ_INSTOP_WRITE, + mce->pcifunc, next_idx, + (next_idx > last_idx) ? true : false); + if (err) + goto end; + idx++; + } + +end: + mutex_unlock(&mcast->mce_lock); + return err; +} + +void nix_get_mce_list(struct rvu *rvu, u16 pcifunc, int type, + struct nix_mce_list **mce_list, int *mce_idx) +{ + struct rvu_hwinfo *hw = rvu->hw; + struct rvu_pfvf *pfvf; + + if (!hw->cap.nix_rx_multicast || + !is_pf_cgxmapped(rvu, rvu_get_pf(pcifunc & ~RVU_PFVF_FUNC_MASK))) { + *mce_list = NULL; + *mce_idx = 0; + return; + } + + /* Get this PF/VF func's MCE index */ + pfvf = rvu_get_pfvf(rvu, pcifunc & ~RVU_PFVF_FUNC_MASK); + + if (type == NIXLF_BCAST_ENTRY) { + *mce_list = &pfvf->bcast_mce_list; + *mce_idx = pfvf->bcast_mce_idx; + } else if (type == NIXLF_ALLMULTI_ENTRY) { + *mce_list = &pfvf->mcast_mce_list; + *mce_idx = pfvf->mcast_mce_idx; + } else if (type == NIXLF_PROMISC_ENTRY) { + *mce_list = &pfvf->promisc_mce_list; + *mce_idx = pfvf->promisc_mce_idx; + } else { + *mce_list = NULL; + *mce_idx = 0; + } +} + +static int nix_update_mce_rule(struct rvu *rvu, u16 pcifunc, + int type, bool add) +{ + int err = 0, nixlf, blkaddr, mcam_index, mce_idx; + struct npc_mcam *mcam = &rvu->hw->mcam; + struct rvu_hwinfo *hw = rvu->hw; + struct nix_mce_list *mce_list; + int pf; + + /* skip multicast pkt replication for AF's VFs & SDP links */ + if (is_afvf(pcifunc) || is_sdp_pfvf(pcifunc)) + return 0; + + if (!hw->cap.nix_rx_multicast) + return 0; + + pf = rvu_get_pf(pcifunc); + if (!is_pf_cgxmapped(rvu, pf)) + return 0; + + blkaddr = rvu_get_blkaddr(rvu, BLKTYPE_NIX, pcifunc); + if (blkaddr < 0) + return -EINVAL; + + nixlf = rvu_get_lf(rvu, &hw->block[blkaddr], pcifunc, 0); + if (nixlf < 0) + return -EINVAL; + + nix_get_mce_list(rvu, pcifunc, type, &mce_list, &mce_idx); + + mcam_index = npc_get_nixlf_mcam_index(mcam, + pcifunc & ~RVU_PFVF_FUNC_MASK, + nixlf, type); + err = nix_update_mce_list(rvu, pcifunc, mce_list, + mce_idx, mcam_index, add); + return err; +} + +static int nix_setup_mce_tables(struct rvu *rvu, struct nix_hw *nix_hw) +{ + struct nix_mcast *mcast = &nix_hw->mcast; + int err, pf, numvfs, idx; + struct rvu_pfvf *pfvf; + u16 pcifunc; + u64 cfg; + + /* Skip PF0 (i.e AF) */ + for (pf = 1; pf < (rvu->cgx_mapped_pfs + 1); pf++) { + cfg = rvu_read64(rvu, BLKADDR_RVUM, RVU_PRIV_PFX_CFG(pf)); + /* If PF is not enabled, nothing to do */ + if (!((cfg >> 20) & 0x01)) + continue; + /* Get numVFs attached to this PF */ + numvfs = (cfg >> 12) & 0xFF; + + pfvf = &rvu->pf[pf]; + + /* This NIX0/1 block mapped to PF ? */ + if (pfvf->nix_blkaddr != nix_hw->blkaddr) + continue; + + /* save start idx of broadcast mce list */ + pfvf->bcast_mce_idx = nix_alloc_mce_list(mcast, numvfs + 1); + nix_mce_list_init(&pfvf->bcast_mce_list, numvfs + 1); + + /* save start idx of multicast mce list */ + pfvf->mcast_mce_idx = nix_alloc_mce_list(mcast, numvfs + 1); + nix_mce_list_init(&pfvf->mcast_mce_list, numvfs + 1); + + /* save the start idx of promisc mce list */ + pfvf->promisc_mce_idx = nix_alloc_mce_list(mcast, numvfs + 1); + nix_mce_list_init(&pfvf->promisc_mce_list, numvfs + 1); + + for (idx = 0; idx < (numvfs + 1); idx++) { + /* idx-0 is for PF, followed by VFs */ + pcifunc = (pf << RVU_PFVF_PF_SHIFT); + pcifunc |= idx; + /* Add dummy entries now, so that we don't have to check + * for whether AQ_OP should be INIT/WRITE later on. + * Will be updated when a NIXLF is attached/detached to + * these PF/VFs. + */ + err = nix_blk_setup_mce(rvu, nix_hw, + pfvf->bcast_mce_idx + idx, + NIX_AQ_INSTOP_INIT, + pcifunc, 0, true); + if (err) + return err; + + /* add dummy entries to multicast mce list */ + err = nix_blk_setup_mce(rvu, nix_hw, + pfvf->mcast_mce_idx + idx, + NIX_AQ_INSTOP_INIT, + pcifunc, 0, true); + if (err) + return err; + + /* add dummy entries to promisc mce list */ + err = nix_blk_setup_mce(rvu, nix_hw, + pfvf->promisc_mce_idx + idx, + NIX_AQ_INSTOP_INIT, + pcifunc, 0, true); + if (err) + return err; + } + } + return 0; +} + +static int nix_setup_mcast(struct rvu *rvu, struct nix_hw *nix_hw, int blkaddr) +{ + struct nix_mcast *mcast = &nix_hw->mcast; + struct rvu_hwinfo *hw = rvu->hw; + int err, size; + + size = (rvu_read64(rvu, blkaddr, NIX_AF_CONST3) >> 16) & 0x0F; + size = (1ULL << size); + + /* Alloc memory for multicast/mirror replication entries */ + err = qmem_alloc(rvu->dev, &mcast->mce_ctx, + (256UL << MC_TBL_SIZE), size); + if (err) + return -ENOMEM; + + rvu_write64(rvu, blkaddr, NIX_AF_RX_MCAST_BASE, + (u64)mcast->mce_ctx->iova); + + /* Set max list length equal to max no of VFs per PF + PF itself */ + rvu_write64(rvu, blkaddr, NIX_AF_RX_MCAST_CFG, + BIT_ULL(36) | (hw->max_vfs_per_pf << 4) | MC_TBL_SIZE); + + /* Alloc memory for multicast replication buffers */ + size = rvu_read64(rvu, blkaddr, NIX_AF_MC_MIRROR_CONST) & 0xFFFF; + err = qmem_alloc(rvu->dev, &mcast->mcast_buf, + (8UL << MC_BUF_CNT), size); + if (err) + return -ENOMEM; + + rvu_write64(rvu, blkaddr, NIX_AF_RX_MCAST_BUF_BASE, + (u64)mcast->mcast_buf->iova); + + /* Alloc pkind for NIX internal RX multicast/mirror replay */ + mcast->replay_pkind = rvu_alloc_rsrc(&hw->pkind.rsrc); + + rvu_write64(rvu, blkaddr, NIX_AF_RX_MCAST_BUF_CFG, + BIT_ULL(63) | (mcast->replay_pkind << 24) | + BIT_ULL(20) | MC_BUF_CNT); + + mutex_init(&mcast->mce_lock); + + return nix_setup_mce_tables(rvu, nix_hw); +} + +static int nix_setup_txvlan(struct rvu *rvu, struct nix_hw *nix_hw) +{ + struct nix_txvlan *vlan = &nix_hw->txvlan; + int err; + + /* Allocate resource bimap for tx vtag def registers*/ + vlan->rsrc.max = NIX_TX_VTAG_DEF_MAX; + err = rvu_alloc_bitmap(&vlan->rsrc); + if (err) + return -ENOMEM; + + /* Alloc memory for saving entry to RVU PFFUNC allocation mapping */ + vlan->entry2pfvf_map = devm_kcalloc(rvu->dev, vlan->rsrc.max, + sizeof(u16), GFP_KERNEL); + if (!vlan->entry2pfvf_map) + goto free_mem; + + mutex_init(&vlan->rsrc_lock); + return 0; + +free_mem: + kfree(vlan->rsrc.bmap); + return -ENOMEM; +} + +static int nix_setup_txschq(struct rvu *rvu, struct nix_hw *nix_hw, int blkaddr) +{ + struct nix_txsch *txsch; + int err, lvl, schq; + u64 cfg, reg; + + /* Get scheduler queue count of each type and alloc + * bitmap for each for alloc/free/attach operations. + */ + for (lvl = 0; lvl < NIX_TXSCH_LVL_CNT; lvl++) { + txsch = &nix_hw->txsch[lvl]; + txsch->lvl = lvl; + switch (lvl) { + case NIX_TXSCH_LVL_SMQ: + reg = NIX_AF_MDQ_CONST; + break; + case NIX_TXSCH_LVL_TL4: + reg = NIX_AF_TL4_CONST; + break; + case NIX_TXSCH_LVL_TL3: + reg = NIX_AF_TL3_CONST; + break; + case NIX_TXSCH_LVL_TL2: + reg = NIX_AF_TL2_CONST; + break; + case NIX_TXSCH_LVL_TL1: + reg = NIX_AF_TL1_CONST; + break; + } + cfg = rvu_read64(rvu, blkaddr, reg); + txsch->schq.max = cfg & 0xFFFF; + err = rvu_alloc_bitmap(&txsch->schq); + if (err) + return err; + + /* Allocate memory for scheduler queues to + * PF/VF pcifunc mapping info. + */ + txsch->pfvf_map = devm_kcalloc(rvu->dev, txsch->schq.max, + sizeof(u32), GFP_KERNEL); + if (!txsch->pfvf_map) + return -ENOMEM; + for (schq = 0; schq < txsch->schq.max; schq++) + txsch->pfvf_map[schq] = TXSCH_MAP(0, NIX_TXSCHQ_FREE); + } + + /* Setup a default value of 8192 as DWRR MTU */ + if (rvu->hw->cap.nix_common_dwrr_mtu) { + rvu_write64(rvu, blkaddr, NIX_AF_DWRR_RPM_MTU, + convert_bytes_to_dwrr_mtu(8192)); + rvu_write64(rvu, blkaddr, NIX_AF_DWRR_SDP_MTU, + convert_bytes_to_dwrr_mtu(8192)); + } + + return 0; +} + +int rvu_nix_reserve_mark_format(struct rvu *rvu, struct nix_hw *nix_hw, + int blkaddr, u32 cfg) +{ + int fmt_idx; + + for (fmt_idx = 0; fmt_idx < nix_hw->mark_format.in_use; fmt_idx++) { + if (nix_hw->mark_format.cfg[fmt_idx] == cfg) + return fmt_idx; + } + if (fmt_idx >= nix_hw->mark_format.total) + return -ERANGE; + + rvu_write64(rvu, blkaddr, NIX_AF_MARK_FORMATX_CTL(fmt_idx), cfg); + nix_hw->mark_format.cfg[fmt_idx] = cfg; + nix_hw->mark_format.in_use++; + return fmt_idx; +} + +static int nix_af_mark_format_setup(struct rvu *rvu, struct nix_hw *nix_hw, + int blkaddr) +{ + u64 cfgs[] = { + [NIX_MARK_CFG_IP_DSCP_RED] = 0x10003, + [NIX_MARK_CFG_IP_DSCP_YELLOW] = 0x11200, + [NIX_MARK_CFG_IP_DSCP_YELLOW_RED] = 0x11203, + [NIX_MARK_CFG_IP_ECN_RED] = 0x6000c, + [NIX_MARK_CFG_IP_ECN_YELLOW] = 0x60c00, + [NIX_MARK_CFG_IP_ECN_YELLOW_RED] = 0x60c0c, + [NIX_MARK_CFG_VLAN_DEI_RED] = 0x30008, + [NIX_MARK_CFG_VLAN_DEI_YELLOW] = 0x30800, + [NIX_MARK_CFG_VLAN_DEI_YELLOW_RED] = 0x30808, + }; + int i, rc; + u64 total; + + total = (rvu_read64(rvu, blkaddr, NIX_AF_PSE_CONST) & 0xFF00) >> 8; + nix_hw->mark_format.total = (u8)total; + nix_hw->mark_format.cfg = devm_kcalloc(rvu->dev, total, sizeof(u32), + GFP_KERNEL); + if (!nix_hw->mark_format.cfg) + return -ENOMEM; + for (i = 0; i < NIX_MARK_CFG_MAX; i++) { + rc = rvu_nix_reserve_mark_format(rvu, nix_hw, blkaddr, cfgs[i]); + if (rc < 0) + dev_err(rvu->dev, "Err %d in setup mark format %d\n", + i, rc); + } + + return 0; +} + +static void rvu_get_lbk_link_max_frs(struct rvu *rvu, u16 *max_mtu) +{ + /* CN10K supports LBK FIFO size 72 KB */ + if (rvu->hw->lbk_bufsize == 0x12000) + *max_mtu = CN10K_LBK_LINK_MAX_FRS; + else + *max_mtu = NIC_HW_MAX_FRS; +} + +static void rvu_get_lmac_link_max_frs(struct rvu *rvu, u16 *max_mtu) +{ + /* RPM supports FIFO len 128 KB */ + if (rvu_cgx_get_fifolen(rvu) == 0x20000) + *max_mtu = CN10K_LMAC_LINK_MAX_FRS; + else + *max_mtu = NIC_HW_MAX_FRS; +} + +int rvu_mbox_handler_nix_get_hw_info(struct rvu *rvu, struct msg_req *req, + struct nix_hw_info *rsp) +{ + u16 pcifunc = req->hdr.pcifunc; + u64 dwrr_mtu; + int blkaddr; + + blkaddr = rvu_get_blkaddr(rvu, BLKTYPE_NIX, pcifunc); + if (blkaddr < 0) + return NIX_AF_ERR_AF_LF_INVALID; + + if (is_afvf(pcifunc)) + rvu_get_lbk_link_max_frs(rvu, &rsp->max_mtu); + else + rvu_get_lmac_link_max_frs(rvu, &rsp->max_mtu); + + rsp->min_mtu = NIC_HW_MIN_FRS; + + if (!rvu->hw->cap.nix_common_dwrr_mtu) { + /* Return '1' on OTx2 */ + rsp->rpm_dwrr_mtu = 1; + rsp->sdp_dwrr_mtu = 1; + return 0; + } + + dwrr_mtu = rvu_read64(rvu, BLKADDR_NIX0, NIX_AF_DWRR_RPM_MTU); + rsp->rpm_dwrr_mtu = convert_dwrr_mtu_to_bytes(dwrr_mtu); + + dwrr_mtu = rvu_read64(rvu, BLKADDR_NIX0, NIX_AF_DWRR_SDP_MTU); + rsp->sdp_dwrr_mtu = convert_dwrr_mtu_to_bytes(dwrr_mtu); + + return 0; +} + +int rvu_mbox_handler_nix_stats_rst(struct rvu *rvu, struct msg_req *req, + struct msg_rsp *rsp) +{ + u16 pcifunc = req->hdr.pcifunc; + int i, nixlf, blkaddr, err; + u64 stats; + + err = nix_get_nixlf(rvu, pcifunc, &nixlf, &blkaddr); + if (err) + return err; + + /* Get stats count supported by HW */ + stats = rvu_read64(rvu, blkaddr, NIX_AF_CONST1); + + /* Reset tx stats */ + for (i = 0; i < ((stats >> 24) & 0xFF); i++) + rvu_write64(rvu, blkaddr, NIX_AF_LFX_TX_STATX(nixlf, i), 0); + + /* Reset rx stats */ + for (i = 0; i < ((stats >> 32) & 0xFF); i++) + rvu_write64(rvu, blkaddr, NIX_AF_LFX_RX_STATX(nixlf, i), 0); + + return 0; +} + +/* Returns the ALG index to be set into NPC_RX_ACTION */ +static int get_flowkey_alg_idx(struct nix_hw *nix_hw, u32 flow_cfg) +{ + int i; + + /* Scan over exiting algo entries to find a match */ + for (i = 0; i < nix_hw->flowkey.in_use; i++) + if (nix_hw->flowkey.flowkey[i] == flow_cfg) + return i; + + return -ERANGE; +} + +static int set_flowkey_fields(struct nix_rx_flowkey_alg *alg, u32 flow_cfg) +{ + int idx, nr_field, key_off, field_marker, keyoff_marker; + int max_key_off, max_bit_pos, group_member; + struct nix_rx_flowkey_alg *field; + struct nix_rx_flowkey_alg tmp; + u32 key_type, valid_key; + int l4_key_offset = 0; + + if (!alg) + return -EINVAL; + +#define FIELDS_PER_ALG 5 +#define MAX_KEY_OFF 40 + /* Clear all fields */ + memset(alg, 0, sizeof(uint64_t) * FIELDS_PER_ALG); + + /* Each of the 32 possible flow key algorithm definitions should + * fall into above incremental config (except ALG0). Otherwise a + * single NPC MCAM entry is not sufficient for supporting RSS. + * + * If a different definition or combination needed then NPC MCAM + * has to be programmed to filter such pkts and it's action should + * point to this definition to calculate flowtag or hash. + * + * The `for loop` goes over _all_ protocol field and the following + * variables depicts the state machine forward progress logic. + * + * keyoff_marker - Enabled when hash byte length needs to be accounted + * in field->key_offset update. + * field_marker - Enabled when a new field needs to be selected. + * group_member - Enabled when protocol is part of a group. + */ + + keyoff_marker = 0; max_key_off = 0; group_member = 0; + nr_field = 0; key_off = 0; field_marker = 1; + field = &tmp; max_bit_pos = fls(flow_cfg); + for (idx = 0; + idx < max_bit_pos && nr_field < FIELDS_PER_ALG && + key_off < MAX_KEY_OFF; idx++) { + key_type = BIT(idx); + valid_key = flow_cfg & key_type; + /* Found a field marker, reset the field values */ + if (field_marker) + memset(&tmp, 0, sizeof(tmp)); + + field_marker = true; + keyoff_marker = true; + switch (key_type) { + case NIX_FLOW_KEY_TYPE_PORT: + field->sel_chan = true; + /* This should be set to 1, when SEL_CHAN is set */ + field->bytesm1 = 1; + break; + case NIX_FLOW_KEY_TYPE_IPV4_PROTO: + field->lid = NPC_LID_LC; + field->hdr_offset = 9; /* offset */ + field->bytesm1 = 0; /* 1 byte */ + field->ltype_match = NPC_LT_LC_IP; + field->ltype_mask = 0xF; + break; + case NIX_FLOW_KEY_TYPE_IPV4: + case NIX_FLOW_KEY_TYPE_INNR_IPV4: + field->lid = NPC_LID_LC; + field->ltype_match = NPC_LT_LC_IP; + if (key_type == NIX_FLOW_KEY_TYPE_INNR_IPV4) { + field->lid = NPC_LID_LG; + field->ltype_match = NPC_LT_LG_TU_IP; + } + field->hdr_offset = 12; /* SIP offset */ + field->bytesm1 = 7; /* SIP + DIP, 8 bytes */ + field->ltype_mask = 0xF; /* Match only IPv4 */ + keyoff_marker = false; + break; + case NIX_FLOW_KEY_TYPE_IPV6: + case NIX_FLOW_KEY_TYPE_INNR_IPV6: + field->lid = NPC_LID_LC; + field->ltype_match = NPC_LT_LC_IP6; + if (key_type == NIX_FLOW_KEY_TYPE_INNR_IPV6) { + field->lid = NPC_LID_LG; + field->ltype_match = NPC_LT_LG_TU_IP6; + } + field->hdr_offset = 8; /* SIP offset */ + field->bytesm1 = 31; /* SIP + DIP, 32 bytes */ + field->ltype_mask = 0xF; /* Match only IPv6 */ + break; + case NIX_FLOW_KEY_TYPE_TCP: + case NIX_FLOW_KEY_TYPE_UDP: + case NIX_FLOW_KEY_TYPE_SCTP: + case NIX_FLOW_KEY_TYPE_INNR_TCP: + case NIX_FLOW_KEY_TYPE_INNR_UDP: + case NIX_FLOW_KEY_TYPE_INNR_SCTP: + field->lid = NPC_LID_LD; + if (key_type == NIX_FLOW_KEY_TYPE_INNR_TCP || + key_type == NIX_FLOW_KEY_TYPE_INNR_UDP || + key_type == NIX_FLOW_KEY_TYPE_INNR_SCTP) + field->lid = NPC_LID_LH; + field->bytesm1 = 3; /* Sport + Dport, 4 bytes */ + + /* Enum values for NPC_LID_LD and NPC_LID_LG are same, + * so no need to change the ltype_match, just change + * the lid for inner protocols + */ + BUILD_BUG_ON((int)NPC_LT_LD_TCP != + (int)NPC_LT_LH_TU_TCP); + BUILD_BUG_ON((int)NPC_LT_LD_UDP != + (int)NPC_LT_LH_TU_UDP); + BUILD_BUG_ON((int)NPC_LT_LD_SCTP != + (int)NPC_LT_LH_TU_SCTP); + + if ((key_type == NIX_FLOW_KEY_TYPE_TCP || + key_type == NIX_FLOW_KEY_TYPE_INNR_TCP) && + valid_key) { + field->ltype_match |= NPC_LT_LD_TCP; + group_member = true; + } else if ((key_type == NIX_FLOW_KEY_TYPE_UDP || + key_type == NIX_FLOW_KEY_TYPE_INNR_UDP) && + valid_key) { + field->ltype_match |= NPC_LT_LD_UDP; + group_member = true; + } else if ((key_type == NIX_FLOW_KEY_TYPE_SCTP || + key_type == NIX_FLOW_KEY_TYPE_INNR_SCTP) && + valid_key) { + field->ltype_match |= NPC_LT_LD_SCTP; + group_member = true; + } + field->ltype_mask = ~field->ltype_match; + if (key_type == NIX_FLOW_KEY_TYPE_SCTP || + key_type == NIX_FLOW_KEY_TYPE_INNR_SCTP) { + /* Handle the case where any of the group item + * is enabled in the group but not the final one + */ + if (group_member) { + valid_key = true; + group_member = false; + } + } else { + field_marker = false; + keyoff_marker = false; + } + + /* TCP/UDP/SCTP and ESP/AH falls at same offset so + * remember the TCP key offset of 40 byte hash key. + */ + if (key_type == NIX_FLOW_KEY_TYPE_TCP) + l4_key_offset = key_off; + break; + case NIX_FLOW_KEY_TYPE_NVGRE: + field->lid = NPC_LID_LD; + field->hdr_offset = 4; /* VSID offset */ + field->bytesm1 = 2; + field->ltype_match = NPC_LT_LD_NVGRE; + field->ltype_mask = 0xF; + break; + case NIX_FLOW_KEY_TYPE_VXLAN: + case NIX_FLOW_KEY_TYPE_GENEVE: + field->lid = NPC_LID_LE; + field->bytesm1 = 2; + field->hdr_offset = 4; + field->ltype_mask = 0xF; + field_marker = false; + keyoff_marker = false; + + if (key_type == NIX_FLOW_KEY_TYPE_VXLAN && valid_key) { + field->ltype_match |= NPC_LT_LE_VXLAN; + group_member = true; + } + + if (key_type == NIX_FLOW_KEY_TYPE_GENEVE && valid_key) { + field->ltype_match |= NPC_LT_LE_GENEVE; + group_member = true; + } + + if (key_type == NIX_FLOW_KEY_TYPE_GENEVE) { + if (group_member) { + field->ltype_mask = ~field->ltype_match; + field_marker = true; + keyoff_marker = true; + valid_key = true; + group_member = false; + } + } + break; + case NIX_FLOW_KEY_TYPE_ETH_DMAC: + case NIX_FLOW_KEY_TYPE_INNR_ETH_DMAC: + field->lid = NPC_LID_LA; + field->ltype_match = NPC_LT_LA_ETHER; + if (key_type == NIX_FLOW_KEY_TYPE_INNR_ETH_DMAC) { + field->lid = NPC_LID_LF; + field->ltype_match = NPC_LT_LF_TU_ETHER; + } + field->hdr_offset = 0; + field->bytesm1 = 5; /* DMAC 6 Byte */ + field->ltype_mask = 0xF; + break; + case NIX_FLOW_KEY_TYPE_IPV6_EXT: + field->lid = NPC_LID_LC; + field->hdr_offset = 40; /* IPV6 hdr */ + field->bytesm1 = 0; /* 1 Byte ext hdr*/ + field->ltype_match = NPC_LT_LC_IP6_EXT; + field->ltype_mask = 0xF; + break; + case NIX_FLOW_KEY_TYPE_GTPU: + field->lid = NPC_LID_LE; + field->hdr_offset = 4; + field->bytesm1 = 3; /* 4 bytes TID*/ + field->ltype_match = NPC_LT_LE_GTPU; + field->ltype_mask = 0xF; + break; + case NIX_FLOW_KEY_TYPE_VLAN: + field->lid = NPC_LID_LB; + field->hdr_offset = 2; /* Skip TPID (2-bytes) */ + field->bytesm1 = 1; /* 2 Bytes (Actually 12 bits) */ + field->ltype_match = NPC_LT_LB_CTAG; + field->ltype_mask = 0xF; + field->fn_mask = 1; /* Mask out the first nibble */ + break; + case NIX_FLOW_KEY_TYPE_AH: + case NIX_FLOW_KEY_TYPE_ESP: + field->hdr_offset = 0; + field->bytesm1 = 7; /* SPI + sequence number */ + field->ltype_mask = 0xF; + field->lid = NPC_LID_LE; + field->ltype_match = NPC_LT_LE_ESP; + if (key_type == NIX_FLOW_KEY_TYPE_AH) { + field->lid = NPC_LID_LD; + field->ltype_match = NPC_LT_LD_AH; + field->hdr_offset = 4; + keyoff_marker = false; + } + break; + } + field->ena = 1; + + /* Found a valid flow key type */ + if (valid_key) { + /* Use the key offset of TCP/UDP/SCTP fields + * for ESP/AH fields. + */ + if (key_type == NIX_FLOW_KEY_TYPE_ESP || + key_type == NIX_FLOW_KEY_TYPE_AH) + key_off = l4_key_offset; + field->key_offset = key_off; + memcpy(&alg[nr_field], field, sizeof(*field)); + max_key_off = max(max_key_off, field->bytesm1 + 1); + + /* Found a field marker, get the next field */ + if (field_marker) + nr_field++; + } + + /* Found a keyoff marker, update the new key_off */ + if (keyoff_marker) { + key_off += max_key_off; + max_key_off = 0; + } + } + /* Processed all the flow key types */ + if (idx == max_bit_pos && key_off <= MAX_KEY_OFF) + return 0; + else + return NIX_AF_ERR_RSS_NOSPC_FIELD; +} + +static int reserve_flowkey_alg_idx(struct rvu *rvu, int blkaddr, u32 flow_cfg) +{ + u64 field[FIELDS_PER_ALG]; + struct nix_hw *hw; + int fid, rc; + + hw = get_nix_hw(rvu->hw, blkaddr); + if (!hw) + return NIX_AF_ERR_INVALID_NIXBLK; + + /* No room to add new flow hash algoritham */ + if (hw->flowkey.in_use >= NIX_FLOW_KEY_ALG_MAX) + return NIX_AF_ERR_RSS_NOSPC_ALGO; + + /* Generate algo fields for the given flow_cfg */ + rc = set_flowkey_fields((struct nix_rx_flowkey_alg *)field, flow_cfg); + if (rc) + return rc; + + /* Update ALGX_FIELDX register with generated fields */ + for (fid = 0; fid < FIELDS_PER_ALG; fid++) + rvu_write64(rvu, blkaddr, + NIX_AF_RX_FLOW_KEY_ALGX_FIELDX(hw->flowkey.in_use, + fid), field[fid]); + + /* Store the flow_cfg for futher lookup */ + rc = hw->flowkey.in_use; + hw->flowkey.flowkey[rc] = flow_cfg; + hw->flowkey.in_use++; + + return rc; +} + +int rvu_mbox_handler_nix_rss_flowkey_cfg(struct rvu *rvu, + struct nix_rss_flowkey_cfg *req, + struct nix_rss_flowkey_cfg_rsp *rsp) +{ + u16 pcifunc = req->hdr.pcifunc; + int alg_idx, nixlf, blkaddr; + struct nix_hw *nix_hw; + int err; + + err = nix_get_nixlf(rvu, pcifunc, &nixlf, &blkaddr); + if (err) + return err; + + nix_hw = get_nix_hw(rvu->hw, blkaddr); + if (!nix_hw) + return NIX_AF_ERR_INVALID_NIXBLK; + + alg_idx = get_flowkey_alg_idx(nix_hw, req->flowkey_cfg); + /* Failed to get algo index from the exiting list, reserve new */ + if (alg_idx < 0) { + alg_idx = reserve_flowkey_alg_idx(rvu, blkaddr, + req->flowkey_cfg); + if (alg_idx < 0) + return alg_idx; + } + rsp->alg_idx = alg_idx; + rvu_npc_update_flowkey_alg_idx(rvu, pcifunc, nixlf, req->group, + alg_idx, req->mcam_index); + return 0; +} + +static int nix_rx_flowkey_alg_cfg(struct rvu *rvu, int blkaddr) +{ + u32 flowkey_cfg, minkey_cfg; + int alg, fid, rc; + + /* Disable all flow key algx fieldx */ + for (alg = 0; alg < NIX_FLOW_KEY_ALG_MAX; alg++) { + for (fid = 0; fid < FIELDS_PER_ALG; fid++) + rvu_write64(rvu, blkaddr, + NIX_AF_RX_FLOW_KEY_ALGX_FIELDX(alg, fid), + 0); + } + + /* IPv4/IPv6 SIP/DIPs */ + flowkey_cfg = NIX_FLOW_KEY_TYPE_IPV4 | NIX_FLOW_KEY_TYPE_IPV6; + rc = reserve_flowkey_alg_idx(rvu, blkaddr, flowkey_cfg); + if (rc < 0) + return rc; + + /* TCPv4/v6 4-tuple, SIP, DIP, Sport, Dport */ + minkey_cfg = flowkey_cfg; + flowkey_cfg = minkey_cfg | NIX_FLOW_KEY_TYPE_TCP; + rc = reserve_flowkey_alg_idx(rvu, blkaddr, flowkey_cfg); + if (rc < 0) + return rc; + + /* UDPv4/v6 4-tuple, SIP, DIP, Sport, Dport */ + flowkey_cfg = minkey_cfg | NIX_FLOW_KEY_TYPE_UDP; + rc = reserve_flowkey_alg_idx(rvu, blkaddr, flowkey_cfg); + if (rc < 0) + return rc; + + /* SCTPv4/v6 4-tuple, SIP, DIP, Sport, Dport */ + flowkey_cfg = minkey_cfg | NIX_FLOW_KEY_TYPE_SCTP; + rc = reserve_flowkey_alg_idx(rvu, blkaddr, flowkey_cfg); + if (rc < 0) + return rc; + + /* TCP/UDP v4/v6 4-tuple, rest IP pkts 2-tuple */ + flowkey_cfg = minkey_cfg | NIX_FLOW_KEY_TYPE_TCP | + NIX_FLOW_KEY_TYPE_UDP; + rc = reserve_flowkey_alg_idx(rvu, blkaddr, flowkey_cfg); + if (rc < 0) + return rc; + + /* TCP/SCTP v4/v6 4-tuple, rest IP pkts 2-tuple */ + flowkey_cfg = minkey_cfg | NIX_FLOW_KEY_TYPE_TCP | + NIX_FLOW_KEY_TYPE_SCTP; + rc = reserve_flowkey_alg_idx(rvu, blkaddr, flowkey_cfg); + if (rc < 0) + return rc; + + /* UDP/SCTP v4/v6 4-tuple, rest IP pkts 2-tuple */ + flowkey_cfg = minkey_cfg | NIX_FLOW_KEY_TYPE_UDP | + NIX_FLOW_KEY_TYPE_SCTP; + rc = reserve_flowkey_alg_idx(rvu, blkaddr, flowkey_cfg); + if (rc < 0) + return rc; + + /* TCP/UDP/SCTP v4/v6 4-tuple, rest IP pkts 2-tuple */ + flowkey_cfg = minkey_cfg | NIX_FLOW_KEY_TYPE_TCP | + NIX_FLOW_KEY_TYPE_UDP | NIX_FLOW_KEY_TYPE_SCTP; + rc = reserve_flowkey_alg_idx(rvu, blkaddr, flowkey_cfg); + if (rc < 0) + return rc; + + return 0; +} + +int rvu_mbox_handler_nix_set_mac_addr(struct rvu *rvu, + struct nix_set_mac_addr *req, + struct msg_rsp *rsp) +{ + bool from_vf = req->hdr.pcifunc & RVU_PFVF_FUNC_MASK; + u16 pcifunc = req->hdr.pcifunc; + int blkaddr, nixlf, err; + struct rvu_pfvf *pfvf; + + err = nix_get_nixlf(rvu, pcifunc, &nixlf, &blkaddr); + if (err) + return err; + + pfvf = rvu_get_pfvf(rvu, pcifunc); + + /* untrusted VF can't overwrite admin(PF) changes */ + if (!test_bit(PF_SET_VF_TRUSTED, &pfvf->flags) && + (from_vf && test_bit(PF_SET_VF_MAC, &pfvf->flags))) { + dev_warn(rvu->dev, + "MAC address set by admin(PF) cannot be overwritten by untrusted VF"); + return -EPERM; + } + + ether_addr_copy(pfvf->mac_addr, req->mac_addr); + + rvu_npc_install_ucast_entry(rvu, pcifunc, nixlf, + pfvf->rx_chan_base, req->mac_addr); + + if (test_bit(PF_SET_VF_TRUSTED, &pfvf->flags) && from_vf) + ether_addr_copy(pfvf->default_mac, req->mac_addr); + + rvu_switch_update_rules(rvu, pcifunc); + + return 0; +} + +int rvu_mbox_handler_nix_get_mac_addr(struct rvu *rvu, + struct msg_req *req, + struct nix_get_mac_addr_rsp *rsp) +{ + u16 pcifunc = req->hdr.pcifunc; + struct rvu_pfvf *pfvf; + + if (!is_nixlf_attached(rvu, pcifunc)) + return NIX_AF_ERR_AF_LF_INVALID; + + pfvf = rvu_get_pfvf(rvu, pcifunc); + + ether_addr_copy(rsp->mac_addr, pfvf->mac_addr); + + return 0; +} + +int rvu_mbox_handler_nix_set_rx_mode(struct rvu *rvu, struct nix_rx_mode *req, + struct msg_rsp *rsp) +{ + bool allmulti, promisc, nix_rx_multicast; + u16 pcifunc = req->hdr.pcifunc; + struct rvu_pfvf *pfvf; + int nixlf, err; + + pfvf = rvu_get_pfvf(rvu, pcifunc); + promisc = req->mode & NIX_RX_MODE_PROMISC ? true : false; + allmulti = req->mode & NIX_RX_MODE_ALLMULTI ? true : false; + pfvf->use_mce_list = req->mode & NIX_RX_MODE_USE_MCE ? true : false; + + nix_rx_multicast = rvu->hw->cap.nix_rx_multicast & pfvf->use_mce_list; + + if (is_vf(pcifunc) && !nix_rx_multicast && + (promisc || allmulti)) { + dev_warn_ratelimited(rvu->dev, + "VF promisc/multicast not supported\n"); + return 0; + } + + /* untrusted VF can't configure promisc/allmulti */ + if (is_vf(pcifunc) && !test_bit(PF_SET_VF_TRUSTED, &pfvf->flags) && + (promisc || allmulti)) + return 0; + + err = nix_get_nixlf(rvu, pcifunc, &nixlf, NULL); + if (err) + return err; + + if (nix_rx_multicast) { + /* add/del this PF_FUNC to/from mcast pkt replication list */ + err = nix_update_mce_rule(rvu, pcifunc, NIXLF_ALLMULTI_ENTRY, + allmulti); + if (err) { + dev_err(rvu->dev, + "Failed to update pcifunc 0x%x to multicast list\n", + pcifunc); + return err; + } + + /* add/del this PF_FUNC to/from promisc pkt replication list */ + err = nix_update_mce_rule(rvu, pcifunc, NIXLF_PROMISC_ENTRY, + promisc); + if (err) { + dev_err(rvu->dev, + "Failed to update pcifunc 0x%x to promisc list\n", + pcifunc); + return err; + } + } + + /* install/uninstall allmulti entry */ + if (allmulti) { + rvu_npc_install_allmulti_entry(rvu, pcifunc, nixlf, + pfvf->rx_chan_base); + } else { + if (!nix_rx_multicast) + rvu_npc_enable_allmulti_entry(rvu, pcifunc, nixlf, false); + } + + /* install/uninstall promisc entry */ + if (promisc) + rvu_npc_install_promisc_entry(rvu, pcifunc, nixlf, + pfvf->rx_chan_base, + pfvf->rx_chan_cnt); + else + if (!nix_rx_multicast) + rvu_npc_enable_promisc_entry(rvu, pcifunc, nixlf, false); + + return 0; +} + +static void nix_find_link_frs(struct rvu *rvu, + struct nix_frs_cfg *req, u16 pcifunc) +{ + int pf = rvu_get_pf(pcifunc); + struct rvu_pfvf *pfvf; + int maxlen, minlen; + int numvfs, hwvf; + int vf; + + /* Update with requester's min/max lengths */ + pfvf = rvu_get_pfvf(rvu, pcifunc); + pfvf->maxlen = req->maxlen; + if (req->update_minlen) + pfvf->minlen = req->minlen; + + maxlen = req->maxlen; + minlen = req->update_minlen ? req->minlen : 0; + + /* Get this PF's numVFs and starting hwvf */ + rvu_get_pf_numvfs(rvu, pf, &numvfs, &hwvf); + + /* For each VF, compare requested max/minlen */ + for (vf = 0; vf < numvfs; vf++) { + pfvf = &rvu->hwvf[hwvf + vf]; + if (pfvf->maxlen > maxlen) + maxlen = pfvf->maxlen; + if (req->update_minlen && + pfvf->minlen && pfvf->minlen < minlen) + minlen = pfvf->minlen; + } + + /* Compare requested max/minlen with PF's max/minlen */ + pfvf = &rvu->pf[pf]; + if (pfvf->maxlen > maxlen) + maxlen = pfvf->maxlen; + if (req->update_minlen && + pfvf->minlen && pfvf->minlen < minlen) + minlen = pfvf->minlen; + + /* Update the request with max/min PF's and it's VF's max/min */ + req->maxlen = maxlen; + if (req->update_minlen) + req->minlen = minlen; +} + +int rvu_mbox_handler_nix_set_hw_frs(struct rvu *rvu, struct nix_frs_cfg *req, + struct msg_rsp *rsp) +{ + struct rvu_hwinfo *hw = rvu->hw; + u16 pcifunc = req->hdr.pcifunc; + int pf = rvu_get_pf(pcifunc); + int blkaddr, link = -1; + struct nix_hw *nix_hw; + struct rvu_pfvf *pfvf; + u8 cgx = 0, lmac = 0; + u16 max_mtu; + u64 cfg; + + blkaddr = rvu_get_blkaddr(rvu, BLKTYPE_NIX, pcifunc); + if (blkaddr < 0) + return NIX_AF_ERR_AF_LF_INVALID; + + nix_hw = get_nix_hw(rvu->hw, blkaddr); + if (!nix_hw) + return NIX_AF_ERR_INVALID_NIXBLK; + + if (is_afvf(pcifunc)) + rvu_get_lbk_link_max_frs(rvu, &max_mtu); + else + rvu_get_lmac_link_max_frs(rvu, &max_mtu); + + if (!req->sdp_link && req->maxlen > max_mtu) + return NIX_AF_ERR_FRS_INVALID; + + if (req->update_minlen && req->minlen < NIC_HW_MIN_FRS) + return NIX_AF_ERR_FRS_INVALID; + + /* Check if config is for SDP link */ + if (req->sdp_link) { + if (!hw->sdp_links) + return NIX_AF_ERR_RX_LINK_INVALID; + link = hw->cgx_links + hw->lbk_links; + goto linkcfg; + } + + /* Check if the request is from CGX mapped RVU PF */ + if (is_pf_cgxmapped(rvu, pf)) { + /* Get CGX and LMAC to which this PF is mapped and find link */ + rvu_get_cgx_lmac_id(rvu->pf2cgxlmac_map[pf], &cgx, &lmac); + link = (cgx * hw->lmac_per_cgx) + lmac; + } else if (pf == 0) { + /* For VFs of PF0 ingress is LBK port, so config LBK link */ + pfvf = rvu_get_pfvf(rvu, pcifunc); + link = hw->cgx_links + pfvf->lbkid; + } + + if (link < 0) + return NIX_AF_ERR_RX_LINK_INVALID; + +linkcfg: + nix_find_link_frs(rvu, req, pcifunc); + + cfg = rvu_read64(rvu, blkaddr, NIX_AF_RX_LINKX_CFG(link)); + cfg = (cfg & ~(0xFFFFULL << 16)) | ((u64)req->maxlen << 16); + if (req->update_minlen) + cfg = (cfg & ~0xFFFFULL) | req->minlen; + rvu_write64(rvu, blkaddr, NIX_AF_RX_LINKX_CFG(link), cfg); + + return 0; +} + +int rvu_mbox_handler_nix_set_rx_cfg(struct rvu *rvu, struct nix_rx_cfg *req, + struct msg_rsp *rsp) +{ + int nixlf, blkaddr, err; + u64 cfg; + + err = nix_get_nixlf(rvu, req->hdr.pcifunc, &nixlf, &blkaddr); + if (err) + return err; + + cfg = rvu_read64(rvu, blkaddr, NIX_AF_LFX_RX_CFG(nixlf)); + /* Set the interface configuration */ + if (req->len_verify & BIT(0)) + cfg |= BIT_ULL(41); + else + cfg &= ~BIT_ULL(41); + + if (req->len_verify & BIT(1)) + cfg |= BIT_ULL(40); + else + cfg &= ~BIT_ULL(40); + + if (req->csum_verify & BIT(0)) + cfg |= BIT_ULL(37); + else + cfg &= ~BIT_ULL(37); + + rvu_write64(rvu, blkaddr, NIX_AF_LFX_RX_CFG(nixlf), cfg); + + return 0; +} + +static u64 rvu_get_lbk_link_credits(struct rvu *rvu, u16 lbk_max_frs) +{ + return 1600; /* 16 * max LBK datarate = 16 * 100Gbps */ +} + +static void nix_link_config(struct rvu *rvu, int blkaddr, + struct nix_hw *nix_hw) +{ + struct rvu_hwinfo *hw = rvu->hw; + int cgx, lmac_cnt, slink, link; + u16 lbk_max_frs, lmac_max_frs; + unsigned long lmac_bmap; + u64 tx_credits, cfg; + u64 lmac_fifo_len; + int iter; + + rvu_get_lbk_link_max_frs(rvu, &lbk_max_frs); + rvu_get_lmac_link_max_frs(rvu, &lmac_max_frs); + + /* Set default min/max packet lengths allowed on NIX Rx links. + * + * With HW reset minlen value of 60byte, HW will treat ARP pkts + * as undersize and report them to SW as error pkts, hence + * setting it to 40 bytes. + */ + for (link = 0; link < hw->cgx_links; link++) { + rvu_write64(rvu, blkaddr, NIX_AF_RX_LINKX_CFG(link), + ((u64)lmac_max_frs << 16) | NIC_HW_MIN_FRS); + } + + for (link = hw->cgx_links; link < hw->lbk_links; link++) { + rvu_write64(rvu, blkaddr, NIX_AF_RX_LINKX_CFG(link), + ((u64)lbk_max_frs << 16) | NIC_HW_MIN_FRS); + } + if (hw->sdp_links) { + link = hw->cgx_links + hw->lbk_links; + rvu_write64(rvu, blkaddr, NIX_AF_RX_LINKX_CFG(link), + SDP_HW_MAX_FRS << 16 | NIC_HW_MIN_FRS); + } + + /* Get MCS external bypass status for CN10K-B */ + if (mcs_get_blkcnt() == 1) { + /* Adjust for 2 credits when external bypass is disabled */ + nix_hw->cc_mcs_cnt = is_mcs_bypass(0) ? 0 : 2; + } + + /* Set credits for Tx links assuming max packet length allowed. + * This will be reconfigured based on MTU set for PF/VF. + */ + for (cgx = 0; cgx < hw->cgx; cgx++) { + lmac_cnt = cgx_get_lmac_cnt(rvu_cgx_pdata(cgx, rvu)); + /* Skip when cgx is not available or lmac cnt is zero */ + if (lmac_cnt <= 0) + continue; + slink = cgx * hw->lmac_per_cgx; + + /* Get LMAC id's from bitmap */ + lmac_bmap = cgx_get_lmac_bmap(rvu_cgx_pdata(cgx, rvu)); + for_each_set_bit(iter, &lmac_bmap, rvu->hw->lmac_per_cgx) { + lmac_fifo_len = rvu_cgx_get_lmac_fifolen(rvu, cgx, iter); + if (!lmac_fifo_len) { + dev_err(rvu->dev, + "%s: Failed to get CGX/RPM%d:LMAC%d FIFO size\n", + __func__, cgx, iter); + continue; + } + tx_credits = (lmac_fifo_len - lmac_max_frs) / 16; + /* Enable credits and set credit pkt count to max allowed */ + cfg = (tx_credits << 12) | (0x1FF << 2) | BIT_ULL(1); + cfg |= FIELD_PREP(NIX_AF_LINKX_MCS_CNT_MASK, nix_hw->cc_mcs_cnt); + + link = iter + slink; + nix_hw->tx_credits[link] = tx_credits; + rvu_write64(rvu, blkaddr, + NIX_AF_TX_LINKX_NORM_CREDIT(link), cfg); + } + } + + /* Set Tx credits for LBK link */ + slink = hw->cgx_links; + for (link = slink; link < (slink + hw->lbk_links); link++) { + tx_credits = rvu_get_lbk_link_credits(rvu, lbk_max_frs); + nix_hw->tx_credits[link] = tx_credits; + /* Enable credits and set credit pkt count to max allowed */ + tx_credits = (tx_credits << 12) | (0x1FF << 2) | BIT_ULL(1); + rvu_write64(rvu, blkaddr, + NIX_AF_TX_LINKX_NORM_CREDIT(link), tx_credits); + } +} + +static int nix_calibrate_x2p(struct rvu *rvu, int blkaddr) +{ + int idx, err; + u64 status; + + /* Start X2P bus calibration */ + rvu_write64(rvu, blkaddr, NIX_AF_CFG, + rvu_read64(rvu, blkaddr, NIX_AF_CFG) | BIT_ULL(9)); + /* Wait for calibration to complete */ + err = rvu_poll_reg(rvu, blkaddr, + NIX_AF_STATUS, BIT_ULL(10), false); + if (err) { + dev_err(rvu->dev, "NIX X2P bus calibration failed\n"); + return err; + } + + status = rvu_read64(rvu, blkaddr, NIX_AF_STATUS); + /* Check if CGX devices are ready */ + for (idx = 0; idx < rvu->cgx_cnt_max; idx++) { + /* Skip when cgx port is not available */ + if (!rvu_cgx_pdata(idx, rvu) || + (status & (BIT_ULL(16 + idx)))) + continue; + dev_err(rvu->dev, + "CGX%d didn't respond to NIX X2P calibration\n", idx); + err = -EBUSY; + } + + /* Check if LBK is ready */ + if (!(status & BIT_ULL(19))) { + dev_err(rvu->dev, + "LBK didn't respond to NIX X2P calibration\n"); + err = -EBUSY; + } + + /* Clear 'calibrate_x2p' bit */ + rvu_write64(rvu, blkaddr, NIX_AF_CFG, + rvu_read64(rvu, blkaddr, NIX_AF_CFG) & ~BIT_ULL(9)); + if (err || (status & 0x3FFULL)) + dev_err(rvu->dev, + "NIX X2P calibration failed, status 0x%llx\n", status); + if (err) + return err; + return 0; +} + +static int nix_aq_init(struct rvu *rvu, struct rvu_block *block) +{ + u64 cfg; + int err; + + /* Set admin queue endianness */ + cfg = rvu_read64(rvu, block->addr, NIX_AF_CFG); +#ifdef __BIG_ENDIAN + cfg |= BIT_ULL(8); + rvu_write64(rvu, block->addr, NIX_AF_CFG, cfg); +#else + cfg &= ~BIT_ULL(8); + rvu_write64(rvu, block->addr, NIX_AF_CFG, cfg); +#endif + + /* Do not bypass NDC cache */ + cfg = rvu_read64(rvu, block->addr, NIX_AF_NDC_CFG); + cfg &= ~0x3FFEULL; +#ifdef CONFIG_NDC_DIS_DYNAMIC_CACHING + /* Disable caching of SQB aka SQEs */ + cfg |= 0x04ULL; +#endif + rvu_write64(rvu, block->addr, NIX_AF_NDC_CFG, cfg); + + /* Result structure can be followed by RQ/SQ/CQ context at + * RES + 128bytes and a write mask at RES + 256 bytes, depending on + * operation type. Alloc sufficient result memory for all operations. + */ + err = rvu_aq_alloc(rvu, &block->aq, + Q_COUNT(AQ_SIZE), sizeof(struct nix_aq_inst_s), + ALIGN(sizeof(struct nix_aq_res_s), 128) + 256); + if (err) + return err; + + rvu_write64(rvu, block->addr, NIX_AF_AQ_CFG, AQ_SIZE); + rvu_write64(rvu, block->addr, + NIX_AF_AQ_BASE, (u64)block->aq->inst->iova); + return 0; +} + +static void rvu_nix_setup_capabilities(struct rvu *rvu, int blkaddr) +{ + struct rvu_hwinfo *hw = rvu->hw; + u64 hw_const; + + hw_const = rvu_read64(rvu, blkaddr, NIX_AF_CONST1); + + /* On OcteonTx2 DWRR quantum is directly configured into each of + * the transmit scheduler queues. And PF/VF drivers were free to + * config any value upto 2^24. + * On CN10K, HW is modified, the quantum configuration at scheduler + * queues is in terms of weight. And SW needs to setup a base DWRR MTU + * at NIX_AF_DWRR_RPM_MTU / NIX_AF_DWRR_SDP_MTU. HW will do + * 'DWRR MTU * weight' to get the quantum. + * + * Check if HW uses a common MTU for all DWRR quantum configs. + * On OcteonTx2 this register field is '0'. + */ + if (((hw_const >> 56) & 0x10) == 0x10) + hw->cap.nix_common_dwrr_mtu = true; +} + +static int rvu_nix_block_init(struct rvu *rvu, struct nix_hw *nix_hw) +{ + const struct npc_lt_def_cfg *ltdefs; + struct rvu_hwinfo *hw = rvu->hw; + int blkaddr = nix_hw->blkaddr; + struct rvu_block *block; + int err; + u64 cfg; + + block = &hw->block[blkaddr]; + + if (is_rvu_96xx_B0(rvu)) { + /* As per a HW errata in 96xx A0/B0 silicon, NIX may corrupt + * internal state when conditional clocks are turned off. + * Hence enable them. + */ + rvu_write64(rvu, blkaddr, NIX_AF_CFG, + rvu_read64(rvu, blkaddr, NIX_AF_CFG) | 0x40ULL); + + /* Set chan/link to backpressure TL3 instead of TL2 */ + rvu_write64(rvu, blkaddr, NIX_AF_PSE_CHANNEL_LEVEL, 0x01); + + /* Disable SQ manager's sticky mode operation (set TM6 = 0) + * This sticky mode is known to cause SQ stalls when multiple + * SQs are mapped to same SMQ and transmitting pkts at a time. + */ + cfg = rvu_read64(rvu, blkaddr, NIX_AF_SQM_DBG_CTL_STATUS); + cfg &= ~BIT_ULL(15); + rvu_write64(rvu, blkaddr, NIX_AF_SQM_DBG_CTL_STATUS, cfg); + } + + ltdefs = rvu->kpu.lt_def; + /* Calibrate X2P bus to check if CGX/LBK links are fine */ + err = nix_calibrate_x2p(rvu, blkaddr); + if (err) + return err; + + /* Setup capabilities of the NIX block */ + rvu_nix_setup_capabilities(rvu, blkaddr); + + /* Initialize admin queue */ + err = nix_aq_init(rvu, block); + if (err) + return err; + + /* Restore CINT timer delay to HW reset values */ + rvu_write64(rvu, blkaddr, NIX_AF_CINT_DELAY, 0x0ULL); + + cfg = rvu_read64(rvu, blkaddr, NIX_AF_SEB_CFG); + + /* For better performance use NDC TX instead of NDC RX for SQ's SQEs" */ + cfg |= 1ULL; + if (!is_rvu_otx2(rvu)) + cfg |= NIX_PTP_1STEP_EN; + + rvu_write64(rvu, blkaddr, NIX_AF_SEB_CFG, cfg); + + if (is_block_implemented(hw, blkaddr)) { + err = nix_setup_txschq(rvu, nix_hw, blkaddr); + if (err) + return err; + + err = nix_setup_ipolicers(rvu, nix_hw, blkaddr); + if (err) + return err; + + err = nix_af_mark_format_setup(rvu, nix_hw, blkaddr); + if (err) + return err; + + err = nix_setup_mcast(rvu, nix_hw, blkaddr); + if (err) + return err; + + err = nix_setup_txvlan(rvu, nix_hw); + if (err) + return err; + + /* Configure segmentation offload formats */ + nix_setup_lso(rvu, nix_hw, blkaddr); + + /* Config Outer/Inner L2, IP, TCP, UDP and SCTP NPC layer info. + * This helps HW protocol checker to identify headers + * and validate length and checksums. + */ + rvu_write64(rvu, blkaddr, NIX_AF_RX_DEF_OL2, + (ltdefs->rx_ol2.lid << 8) | (ltdefs->rx_ol2.ltype_match << 4) | + ltdefs->rx_ol2.ltype_mask); + rvu_write64(rvu, blkaddr, NIX_AF_RX_DEF_OIP4, + (ltdefs->rx_oip4.lid << 8) | (ltdefs->rx_oip4.ltype_match << 4) | + ltdefs->rx_oip4.ltype_mask); + rvu_write64(rvu, blkaddr, NIX_AF_RX_DEF_IIP4, + (ltdefs->rx_iip4.lid << 8) | (ltdefs->rx_iip4.ltype_match << 4) | + ltdefs->rx_iip4.ltype_mask); + rvu_write64(rvu, blkaddr, NIX_AF_RX_DEF_OIP6, + (ltdefs->rx_oip6.lid << 8) | (ltdefs->rx_oip6.ltype_match << 4) | + ltdefs->rx_oip6.ltype_mask); + rvu_write64(rvu, blkaddr, NIX_AF_RX_DEF_IIP6, + (ltdefs->rx_iip6.lid << 8) | (ltdefs->rx_iip6.ltype_match << 4) | + ltdefs->rx_iip6.ltype_mask); + rvu_write64(rvu, blkaddr, NIX_AF_RX_DEF_OTCP, + (ltdefs->rx_otcp.lid << 8) | (ltdefs->rx_otcp.ltype_match << 4) | + ltdefs->rx_otcp.ltype_mask); + rvu_write64(rvu, blkaddr, NIX_AF_RX_DEF_ITCP, + (ltdefs->rx_itcp.lid << 8) | (ltdefs->rx_itcp.ltype_match << 4) | + ltdefs->rx_itcp.ltype_mask); + rvu_write64(rvu, blkaddr, NIX_AF_RX_DEF_OUDP, + (ltdefs->rx_oudp.lid << 8) | (ltdefs->rx_oudp.ltype_match << 4) | + ltdefs->rx_oudp.ltype_mask); + rvu_write64(rvu, blkaddr, NIX_AF_RX_DEF_IUDP, + (ltdefs->rx_iudp.lid << 8) | (ltdefs->rx_iudp.ltype_match << 4) | + ltdefs->rx_iudp.ltype_mask); + rvu_write64(rvu, blkaddr, NIX_AF_RX_DEF_OSCTP, + (ltdefs->rx_osctp.lid << 8) | (ltdefs->rx_osctp.ltype_match << 4) | + ltdefs->rx_osctp.ltype_mask); + rvu_write64(rvu, blkaddr, NIX_AF_RX_DEF_ISCTP, + (ltdefs->rx_isctp.lid << 8) | (ltdefs->rx_isctp.ltype_match << 4) | + ltdefs->rx_isctp.ltype_mask); + + if (!is_rvu_otx2(rvu)) { + /* Enable APAD calculation for other protocols + * matching APAD0 and APAD1 lt def registers. + */ + rvu_write64(rvu, blkaddr, NIX_AF_RX_DEF_CST_APAD0, + (ltdefs->rx_apad0.valid << 11) | + (ltdefs->rx_apad0.lid << 8) | + (ltdefs->rx_apad0.ltype_match << 4) | + ltdefs->rx_apad0.ltype_mask); + rvu_write64(rvu, blkaddr, NIX_AF_RX_DEF_CST_APAD1, + (ltdefs->rx_apad1.valid << 11) | + (ltdefs->rx_apad1.lid << 8) | + (ltdefs->rx_apad1.ltype_match << 4) | + ltdefs->rx_apad1.ltype_mask); + + /* Receive ethertype defination register defines layer + * information in NPC_RESULT_S to identify the Ethertype + * location in L2 header. Used for Ethertype overwriting + * in inline IPsec flow. + */ + rvu_write64(rvu, blkaddr, NIX_AF_RX_DEF_ET(0), + (ltdefs->rx_et[0].offset << 12) | + (ltdefs->rx_et[0].valid << 11) | + (ltdefs->rx_et[0].lid << 8) | + (ltdefs->rx_et[0].ltype_match << 4) | + ltdefs->rx_et[0].ltype_mask); + rvu_write64(rvu, blkaddr, NIX_AF_RX_DEF_ET(1), + (ltdefs->rx_et[1].offset << 12) | + (ltdefs->rx_et[1].valid << 11) | + (ltdefs->rx_et[1].lid << 8) | + (ltdefs->rx_et[1].ltype_match << 4) | + ltdefs->rx_et[1].ltype_mask); + } + + err = nix_rx_flowkey_alg_cfg(rvu, blkaddr); + if (err) + return err; + + nix_hw->tx_credits = kcalloc(hw->cgx_links + hw->lbk_links, + sizeof(u64), GFP_KERNEL); + if (!nix_hw->tx_credits) + return -ENOMEM; + + /* Initialize CGX/LBK/SDP link credits, min/max pkt lengths */ + nix_link_config(rvu, blkaddr, nix_hw); + + /* Enable Channel backpressure */ + rvu_write64(rvu, blkaddr, NIX_AF_RX_CFG, BIT_ULL(0)); + } + return 0; +} + +int rvu_nix_init(struct rvu *rvu) +{ + struct rvu_hwinfo *hw = rvu->hw; + struct nix_hw *nix_hw; + int blkaddr = 0, err; + int i = 0; + + hw->nix = devm_kcalloc(rvu->dev, MAX_NIX_BLKS, sizeof(struct nix_hw), + GFP_KERNEL); + if (!hw->nix) + return -ENOMEM; + + blkaddr = rvu_get_next_nix_blkaddr(rvu, blkaddr); + while (blkaddr) { + nix_hw = &hw->nix[i]; + nix_hw->rvu = rvu; + nix_hw->blkaddr = blkaddr; + err = rvu_nix_block_init(rvu, nix_hw); + if (err) + return err; + blkaddr = rvu_get_next_nix_blkaddr(rvu, blkaddr); + i++; + } + + return 0; +} + +static void rvu_nix_block_freemem(struct rvu *rvu, int blkaddr, + struct rvu_block *block) +{ + struct nix_txsch *txsch; + struct nix_mcast *mcast; + struct nix_txvlan *vlan; + struct nix_hw *nix_hw; + int lvl; + + rvu_aq_free(rvu, block->aq); + + if (is_block_implemented(rvu->hw, blkaddr)) { + nix_hw = get_nix_hw(rvu->hw, blkaddr); + if (!nix_hw) + return; + + for (lvl = 0; lvl < NIX_TXSCH_LVL_CNT; lvl++) { + txsch = &nix_hw->txsch[lvl]; + kfree(txsch->schq.bmap); + } + + kfree(nix_hw->tx_credits); + + nix_ipolicer_freemem(rvu, nix_hw); + + vlan = &nix_hw->txvlan; + kfree(vlan->rsrc.bmap); + mutex_destroy(&vlan->rsrc_lock); + + mcast = &nix_hw->mcast; + qmem_free(rvu->dev, mcast->mce_ctx); + qmem_free(rvu->dev, mcast->mcast_buf); + mutex_destroy(&mcast->mce_lock); + } +} + +void rvu_nix_freemem(struct rvu *rvu) +{ + struct rvu_hwinfo *hw = rvu->hw; + struct rvu_block *block; + int blkaddr = 0; + + blkaddr = rvu_get_next_nix_blkaddr(rvu, blkaddr); + while (blkaddr) { + block = &hw->block[blkaddr]; + rvu_nix_block_freemem(rvu, blkaddr, block); + blkaddr = rvu_get_next_nix_blkaddr(rvu, blkaddr); + } +} + +int rvu_mbox_handler_nix_lf_start_rx(struct rvu *rvu, struct msg_req *req, + struct msg_rsp *rsp) +{ + u16 pcifunc = req->hdr.pcifunc; + struct rvu_pfvf *pfvf; + int nixlf, err; + + err = nix_get_nixlf(rvu, pcifunc, &nixlf, NULL); + if (err) + return err; + + rvu_npc_enable_default_entries(rvu, pcifunc, nixlf); + + npc_mcam_enable_flows(rvu, pcifunc); + + pfvf = rvu_get_pfvf(rvu, pcifunc); + set_bit(NIXLF_INITIALIZED, &pfvf->flags); + + rvu_switch_update_rules(rvu, pcifunc); + + return rvu_cgx_start_stop_io(rvu, pcifunc, true); +} + +int rvu_mbox_handler_nix_lf_stop_rx(struct rvu *rvu, struct msg_req *req, + struct msg_rsp *rsp) +{ + u16 pcifunc = req->hdr.pcifunc; + struct rvu_pfvf *pfvf; + int nixlf, err; + + err = nix_get_nixlf(rvu, pcifunc, &nixlf, NULL); + if (err) + return err; + + rvu_npc_disable_mcam_entries(rvu, pcifunc, nixlf); + + pfvf = rvu_get_pfvf(rvu, pcifunc); + clear_bit(NIXLF_INITIALIZED, &pfvf->flags); + + err = rvu_cgx_start_stop_io(rvu, pcifunc, false); + if (err) + return err; + + rvu_cgx_tx_enable(rvu, pcifunc, true); + + return 0; +} + +#define RX_SA_BASE GENMASK_ULL(52, 7) + +void rvu_nix_lf_teardown(struct rvu *rvu, u16 pcifunc, int blkaddr, int nixlf) +{ + struct rvu_pfvf *pfvf = rvu_get_pfvf(rvu, pcifunc); + struct hwctx_disable_req ctx_req; + int pf = rvu_get_pf(pcifunc); + struct mac_ops *mac_ops; + u8 cgx_id, lmac_id; + u64 sa_base; + void *cgxd; + int err; + + ctx_req.hdr.pcifunc = pcifunc; + + /* Cleanup NPC MCAM entries, free Tx scheduler queues being used */ + rvu_npc_disable_mcam_entries(rvu, pcifunc, nixlf); + rvu_npc_free_mcam_entries(rvu, pcifunc, nixlf); + nix_interface_deinit(rvu, pcifunc, nixlf); + nix_rx_sync(rvu, blkaddr); + nix_txschq_free(rvu, pcifunc); + + clear_bit(NIXLF_INITIALIZED, &pfvf->flags); + + rvu_cgx_start_stop_io(rvu, pcifunc, false); + + if (pfvf->sq_ctx) { + ctx_req.ctype = NIX_AQ_CTYPE_SQ; + err = nix_lf_hwctx_disable(rvu, &ctx_req); + if (err) + dev_err(rvu->dev, "SQ ctx disable failed\n"); + } + + if (pfvf->rq_ctx) { + ctx_req.ctype = NIX_AQ_CTYPE_RQ; + err = nix_lf_hwctx_disable(rvu, &ctx_req); + if (err) + dev_err(rvu->dev, "RQ ctx disable failed\n"); + } + + if (pfvf->cq_ctx) { + ctx_req.ctype = NIX_AQ_CTYPE_CQ; + err = nix_lf_hwctx_disable(rvu, &ctx_req); + if (err) + dev_err(rvu->dev, "CQ ctx disable failed\n"); + } + + /* reset HW config done for Switch headers */ + rvu_npc_set_parse_mode(rvu, pcifunc, OTX2_PRIV_FLAGS_DEFAULT, + (PKIND_TX | PKIND_RX), 0, 0, 0, 0); + + /* Disabling CGX and NPC config done for PTP */ + if (pfvf->hw_rx_tstamp_en) { + rvu_get_cgx_lmac_id(rvu->pf2cgxlmac_map[pf], &cgx_id, &lmac_id); + cgxd = rvu_cgx_pdata(cgx_id, rvu); + mac_ops = get_mac_ops(cgxd); + mac_ops->mac_enadis_ptp_config(cgxd, lmac_id, false); + /* Undo NPC config done for PTP */ + if (npc_config_ts_kpuaction(rvu, pf, pcifunc, false)) + dev_err(rvu->dev, "NPC config for PTP failed\n"); + pfvf->hw_rx_tstamp_en = false; + } + + /* reset priority flow control config */ + rvu_cgx_prio_flow_ctrl_cfg(rvu, pcifunc, 0, 0, 0); + + /* reset 802.3x flow control config */ + rvu_cgx_cfg_pause_frm(rvu, pcifunc, 0, 0); + + nix_ctx_free(rvu, pfvf); + + nix_free_all_bandprof(rvu, pcifunc); + + sa_base = rvu_read64(rvu, blkaddr, NIX_AF_LFX_RX_IPSEC_SA_BASE(nixlf)); + if (FIELD_GET(RX_SA_BASE, sa_base)) { + err = rvu_cpt_ctx_flush(rvu, pcifunc); + if (err) + dev_err(rvu->dev, + "CPT ctx flush failed with error: %d\n", err); + } +} + +#define NIX_AF_LFX_TX_CFG_PTP_EN BIT_ULL(32) + +static int rvu_nix_lf_ptp_tx_cfg(struct rvu *rvu, u16 pcifunc, bool enable) +{ + struct rvu_hwinfo *hw = rvu->hw; + struct rvu_block *block; + int blkaddr, pf; + int nixlf; + u64 cfg; + + pf = rvu_get_pf(pcifunc); + if (!is_mac_feature_supported(rvu, pf, RVU_LMAC_FEAT_PTP)) + return 0; + + blkaddr = rvu_get_blkaddr(rvu, BLKTYPE_NIX, pcifunc); + if (blkaddr < 0) + return NIX_AF_ERR_AF_LF_INVALID; + + block = &hw->block[blkaddr]; + nixlf = rvu_get_lf(rvu, block, pcifunc, 0); + if (nixlf < 0) + return NIX_AF_ERR_AF_LF_INVALID; + + cfg = rvu_read64(rvu, blkaddr, NIX_AF_LFX_TX_CFG(nixlf)); + + if (enable) + cfg |= NIX_AF_LFX_TX_CFG_PTP_EN; + else + cfg &= ~NIX_AF_LFX_TX_CFG_PTP_EN; + + rvu_write64(rvu, blkaddr, NIX_AF_LFX_TX_CFG(nixlf), cfg); + + return 0; +} + +int rvu_mbox_handler_nix_lf_ptp_tx_enable(struct rvu *rvu, struct msg_req *req, + struct msg_rsp *rsp) +{ + return rvu_nix_lf_ptp_tx_cfg(rvu, req->hdr.pcifunc, true); +} + +int rvu_mbox_handler_nix_lf_ptp_tx_disable(struct rvu *rvu, struct msg_req *req, + struct msg_rsp *rsp) +{ + return rvu_nix_lf_ptp_tx_cfg(rvu, req->hdr.pcifunc, false); +} + +int rvu_mbox_handler_nix_lso_format_cfg(struct rvu *rvu, + struct nix_lso_format_cfg *req, + struct nix_lso_format_cfg_rsp *rsp) +{ + u16 pcifunc = req->hdr.pcifunc; + struct nix_hw *nix_hw; + struct rvu_pfvf *pfvf; + int blkaddr, idx, f; + u64 reg; + + pfvf = rvu_get_pfvf(rvu, pcifunc); + blkaddr = rvu_get_blkaddr(rvu, BLKTYPE_NIX, pcifunc); + if (!pfvf->nixlf || blkaddr < 0) + return NIX_AF_ERR_AF_LF_INVALID; + + nix_hw = get_nix_hw(rvu->hw, blkaddr); + if (!nix_hw) + return NIX_AF_ERR_INVALID_NIXBLK; + + /* Find existing matching LSO format, if any */ + for (idx = 0; idx < nix_hw->lso.in_use; idx++) { + for (f = 0; f < NIX_LSO_FIELD_MAX; f++) { + reg = rvu_read64(rvu, blkaddr, + NIX_AF_LSO_FORMATX_FIELDX(idx, f)); + if (req->fields[f] != (reg & req->field_mask)) + break; + } + + if (f == NIX_LSO_FIELD_MAX) + break; + } + + if (idx < nix_hw->lso.in_use) { + /* Match found */ + rsp->lso_format_idx = idx; + return 0; + } + + if (nix_hw->lso.in_use == nix_hw->lso.total) + return NIX_AF_ERR_LSO_CFG_FAIL; + + rsp->lso_format_idx = nix_hw->lso.in_use++; + + for (f = 0; f < NIX_LSO_FIELD_MAX; f++) + rvu_write64(rvu, blkaddr, + NIX_AF_LSO_FORMATX_FIELDX(rsp->lso_format_idx, f), + req->fields[f]); + + return 0; +} + +#define IPSEC_GEN_CFG_EGRP GENMASK_ULL(50, 48) +#define IPSEC_GEN_CFG_OPCODE GENMASK_ULL(47, 32) +#define IPSEC_GEN_CFG_PARAM1 GENMASK_ULL(31, 16) +#define IPSEC_GEN_CFG_PARAM2 GENMASK_ULL(15, 0) + +#define CPT_INST_QSEL_BLOCK GENMASK_ULL(28, 24) +#define CPT_INST_QSEL_PF_FUNC GENMASK_ULL(23, 8) +#define CPT_INST_QSEL_SLOT GENMASK_ULL(7, 0) + +static void nix_inline_ipsec_cfg(struct rvu *rvu, struct nix_inline_ipsec_cfg *req, + int blkaddr) +{ + u8 cpt_idx, cpt_blkaddr; + u64 val; + + cpt_idx = (blkaddr == BLKADDR_NIX0) ? 0 : 1; + if (req->enable) { + val = 0; + /* Enable context prefetching */ + if (!is_rvu_otx2(rvu)) + val |= BIT_ULL(51); + + /* Set OPCODE and EGRP */ + val |= FIELD_PREP(IPSEC_GEN_CFG_EGRP, req->gen_cfg.egrp); + val |= FIELD_PREP(IPSEC_GEN_CFG_OPCODE, req->gen_cfg.opcode); + val |= FIELD_PREP(IPSEC_GEN_CFG_PARAM1, req->gen_cfg.param1); + val |= FIELD_PREP(IPSEC_GEN_CFG_PARAM2, req->gen_cfg.param2); + + rvu_write64(rvu, blkaddr, NIX_AF_RX_IPSEC_GEN_CFG, val); + + /* Set CPT queue for inline IPSec */ + val = FIELD_PREP(CPT_INST_QSEL_SLOT, req->inst_qsel.cpt_slot); + val |= FIELD_PREP(CPT_INST_QSEL_PF_FUNC, + req->inst_qsel.cpt_pf_func); + + if (!is_rvu_otx2(rvu)) { + cpt_blkaddr = (cpt_idx == 0) ? BLKADDR_CPT0 : + BLKADDR_CPT1; + val |= FIELD_PREP(CPT_INST_QSEL_BLOCK, cpt_blkaddr); + } + + rvu_write64(rvu, blkaddr, NIX_AF_RX_CPTX_INST_QSEL(cpt_idx), + val); + + /* Set CPT credit */ + rvu_write64(rvu, blkaddr, NIX_AF_RX_CPTX_CREDIT(cpt_idx), + req->cpt_credit); + } else { + rvu_write64(rvu, blkaddr, NIX_AF_RX_IPSEC_GEN_CFG, 0x0); + rvu_write64(rvu, blkaddr, NIX_AF_RX_CPTX_INST_QSEL(cpt_idx), + 0x0); + rvu_write64(rvu, blkaddr, NIX_AF_RX_CPTX_CREDIT(cpt_idx), + 0x3FFFFF); + } +} + +int rvu_mbox_handler_nix_inline_ipsec_cfg(struct rvu *rvu, + struct nix_inline_ipsec_cfg *req, + struct msg_rsp *rsp) +{ + if (!is_block_implemented(rvu->hw, BLKADDR_CPT0)) + return 0; + + nix_inline_ipsec_cfg(rvu, req, BLKADDR_NIX0); + if (is_block_implemented(rvu->hw, BLKADDR_CPT1)) + nix_inline_ipsec_cfg(rvu, req, BLKADDR_NIX1); + + return 0; +} + +int rvu_mbox_handler_nix_inline_ipsec_lf_cfg(struct rvu *rvu, + struct nix_inline_ipsec_lf_cfg *req, + struct msg_rsp *rsp) +{ + int lf, blkaddr, err; + u64 val; + + if (!is_block_implemented(rvu->hw, BLKADDR_CPT0)) + return 0; + + err = nix_get_nixlf(rvu, req->hdr.pcifunc, &lf, &blkaddr); + if (err) + return err; + + if (req->enable) { + /* Set TT, TAG_CONST, SA_POW2_SIZE and LENM1_MAX */ + val = (u64)req->ipsec_cfg0.tt << 44 | + (u64)req->ipsec_cfg0.tag_const << 20 | + (u64)req->ipsec_cfg0.sa_pow2_size << 16 | + req->ipsec_cfg0.lenm1_max; + + if (blkaddr == BLKADDR_NIX1) + val |= BIT_ULL(46); + + rvu_write64(rvu, blkaddr, NIX_AF_LFX_RX_IPSEC_CFG0(lf), val); + + /* Set SA_IDX_W and SA_IDX_MAX */ + val = (u64)req->ipsec_cfg1.sa_idx_w << 32 | + req->ipsec_cfg1.sa_idx_max; + rvu_write64(rvu, blkaddr, NIX_AF_LFX_RX_IPSEC_CFG1(lf), val); + + /* Set SA base address */ + rvu_write64(rvu, blkaddr, NIX_AF_LFX_RX_IPSEC_SA_BASE(lf), + req->sa_base_addr); + } else { + rvu_write64(rvu, blkaddr, NIX_AF_LFX_RX_IPSEC_CFG0(lf), 0x0); + rvu_write64(rvu, blkaddr, NIX_AF_LFX_RX_IPSEC_CFG1(lf), 0x0); + rvu_write64(rvu, blkaddr, NIX_AF_LFX_RX_IPSEC_SA_BASE(lf), + 0x0); + } + + return 0; +} +void rvu_nix_reset_mac(struct rvu_pfvf *pfvf, int pcifunc) +{ + bool from_vf = !!(pcifunc & RVU_PFVF_FUNC_MASK); + + /* overwrite vf mac address with default_mac */ + if (from_vf) + ether_addr_copy(pfvf->mac_addr, pfvf->default_mac); +} + +/* NIX ingress policers or bandwidth profiles APIs */ +static void nix_config_rx_pkt_policer_precolor(struct rvu *rvu, int blkaddr) +{ + struct npc_lt_def_cfg defs, *ltdefs; + + ltdefs = &defs; + memcpy(ltdefs, rvu->kpu.lt_def, sizeof(struct npc_lt_def_cfg)); + + /* Extract PCP and DEI fields from outer VLAN from byte offset + * 2 from the start of LB_PTR (ie TAG). + * VLAN0 is Outer VLAN and VLAN1 is Inner VLAN. Inner VLAN + * fields are considered when 'Tunnel enable' is set in profile. + */ + rvu_write64(rvu, blkaddr, NIX_AF_RX_DEF_VLAN0_PCP_DEI, + (2UL << 12) | (ltdefs->ovlan.lid << 8) | + (ltdefs->ovlan.ltype_match << 4) | + ltdefs->ovlan.ltype_mask); + rvu_write64(rvu, blkaddr, NIX_AF_RX_DEF_VLAN1_PCP_DEI, + (2UL << 12) | (ltdefs->ivlan.lid << 8) | + (ltdefs->ivlan.ltype_match << 4) | + ltdefs->ivlan.ltype_mask); + + /* DSCP field in outer and tunneled IPv4 packets */ + rvu_write64(rvu, blkaddr, NIX_AF_RX_DEF_OIP4_DSCP, + (1UL << 12) | (ltdefs->rx_oip4.lid << 8) | + (ltdefs->rx_oip4.ltype_match << 4) | + ltdefs->rx_oip4.ltype_mask); + rvu_write64(rvu, blkaddr, NIX_AF_RX_DEF_IIP4_DSCP, + (1UL << 12) | (ltdefs->rx_iip4.lid << 8) | + (ltdefs->rx_iip4.ltype_match << 4) | + ltdefs->rx_iip4.ltype_mask); + + /* DSCP field (traffic class) in outer and tunneled IPv6 packets */ + rvu_write64(rvu, blkaddr, NIX_AF_RX_DEF_OIP6_DSCP, + (1UL << 11) | (ltdefs->rx_oip6.lid << 8) | + (ltdefs->rx_oip6.ltype_match << 4) | + ltdefs->rx_oip6.ltype_mask); + rvu_write64(rvu, blkaddr, NIX_AF_RX_DEF_IIP6_DSCP, + (1UL << 11) | (ltdefs->rx_iip6.lid << 8) | + (ltdefs->rx_iip6.ltype_match << 4) | + ltdefs->rx_iip6.ltype_mask); +} + +static int nix_init_policer_context(struct rvu *rvu, struct nix_hw *nix_hw, + int layer, int prof_idx) +{ + struct nix_cn10k_aq_enq_req aq_req; + int rc; + + memset(&aq_req, 0, sizeof(struct nix_cn10k_aq_enq_req)); + + aq_req.qidx = (prof_idx & 0x3FFF) | (layer << 14); + aq_req.ctype = NIX_AQ_CTYPE_BANDPROF; + aq_req.op = NIX_AQ_INSTOP_INIT; + + /* Context is all zeros, submit to AQ */ + rc = rvu_nix_blk_aq_enq_inst(rvu, nix_hw, + (struct nix_aq_enq_req *)&aq_req, NULL); + if (rc) + dev_err(rvu->dev, "Failed to INIT bandwidth profile layer %d profile %d\n", + layer, prof_idx); + return rc; +} + +static int nix_setup_ipolicers(struct rvu *rvu, + struct nix_hw *nix_hw, int blkaddr) +{ + struct rvu_hwinfo *hw = rvu->hw; + struct nix_ipolicer *ipolicer; + int err, layer, prof_idx; + u64 cfg; + + cfg = rvu_read64(rvu, blkaddr, NIX_AF_CONST); + if (!(cfg & BIT_ULL(61))) { + hw->cap.ipolicer = false; + return 0; + } + + hw->cap.ipolicer = true; + nix_hw->ipolicer = devm_kcalloc(rvu->dev, BAND_PROF_NUM_LAYERS, + sizeof(*ipolicer), GFP_KERNEL); + if (!nix_hw->ipolicer) + return -ENOMEM; + + cfg = rvu_read64(rvu, blkaddr, NIX_AF_PL_CONST); + + for (layer = 0; layer < BAND_PROF_NUM_LAYERS; layer++) { + ipolicer = &nix_hw->ipolicer[layer]; + switch (layer) { + case BAND_PROF_LEAF_LAYER: + ipolicer->band_prof.max = cfg & 0XFFFF; + break; + case BAND_PROF_MID_LAYER: + ipolicer->band_prof.max = (cfg >> 16) & 0XFFFF; + break; + case BAND_PROF_TOP_LAYER: + ipolicer->band_prof.max = (cfg >> 32) & 0XFFFF; + break; + } + + if (!ipolicer->band_prof.max) + continue; + + err = rvu_alloc_bitmap(&ipolicer->band_prof); + if (err) + return err; + + ipolicer->pfvf_map = devm_kcalloc(rvu->dev, + ipolicer->band_prof.max, + sizeof(u16), GFP_KERNEL); + if (!ipolicer->pfvf_map) + return -ENOMEM; + + ipolicer->match_id = devm_kcalloc(rvu->dev, + ipolicer->band_prof.max, + sizeof(u16), GFP_KERNEL); + if (!ipolicer->match_id) + return -ENOMEM; + + for (prof_idx = 0; + prof_idx < ipolicer->band_prof.max; prof_idx++) { + /* Set AF as current owner for INIT ops to succeed */ + ipolicer->pfvf_map[prof_idx] = 0x00; + + /* There is no enable bit in the profile context, + * so no context disable. So let's INIT them here + * so that PF/VF later on have to just do WRITE to + * setup policer rates and config. + */ + err = nix_init_policer_context(rvu, nix_hw, + layer, prof_idx); + if (err) + return err; + } + + /* Allocate memory for maintaining ref_counts for MID level + * profiles, this will be needed for leaf layer profiles' + * aggregation. + */ + if (layer != BAND_PROF_MID_LAYER) + continue; + + ipolicer->ref_count = devm_kcalloc(rvu->dev, + ipolicer->band_prof.max, + sizeof(u16), GFP_KERNEL); + if (!ipolicer->ref_count) + return -ENOMEM; + } + + /* Set policer timeunit to 2us ie (19 + 1) * 100 nsec = 2us */ + rvu_write64(rvu, blkaddr, NIX_AF_PL_TS, 19); + + nix_config_rx_pkt_policer_precolor(rvu, blkaddr); + + return 0; +} + +static void nix_ipolicer_freemem(struct rvu *rvu, struct nix_hw *nix_hw) +{ + struct nix_ipolicer *ipolicer; + int layer; + + if (!rvu->hw->cap.ipolicer) + return; + + for (layer = 0; layer < BAND_PROF_NUM_LAYERS; layer++) { + ipolicer = &nix_hw->ipolicer[layer]; + + if (!ipolicer->band_prof.max) + continue; + + kfree(ipolicer->band_prof.bmap); + } +} + +static int nix_verify_bandprof(struct nix_cn10k_aq_enq_req *req, + struct nix_hw *nix_hw, u16 pcifunc) +{ + struct nix_ipolicer *ipolicer; + int layer, hi_layer, prof_idx; + + /* Bits [15:14] in profile index represent layer */ + layer = (req->qidx >> 14) & 0x03; + prof_idx = req->qidx & 0x3FFF; + + ipolicer = &nix_hw->ipolicer[layer]; + if (prof_idx >= ipolicer->band_prof.max) + return -EINVAL; + + /* Check if the profile is allocated to the requesting PCIFUNC or not + * with the exception of AF. AF is allowed to read and update contexts. + */ + if (pcifunc && ipolicer->pfvf_map[prof_idx] != pcifunc) + return -EINVAL; + + /* If this profile is linked to higher layer profile then check + * if that profile is also allocated to the requesting PCIFUNC + * or not. + */ + if (!req->prof.hl_en) + return 0; + + /* Leaf layer profile can link only to mid layer and + * mid layer to top layer. + */ + if (layer == BAND_PROF_LEAF_LAYER) + hi_layer = BAND_PROF_MID_LAYER; + else if (layer == BAND_PROF_MID_LAYER) + hi_layer = BAND_PROF_TOP_LAYER; + else + return -EINVAL; + + ipolicer = &nix_hw->ipolicer[hi_layer]; + prof_idx = req->prof.band_prof_id; + if (prof_idx >= ipolicer->band_prof.max || + ipolicer->pfvf_map[prof_idx] != pcifunc) + return -EINVAL; + + return 0; +} + +int rvu_mbox_handler_nix_bandprof_alloc(struct rvu *rvu, + struct nix_bandprof_alloc_req *req, + struct nix_bandprof_alloc_rsp *rsp) +{ + int blkaddr, layer, prof, idx, err; + u16 pcifunc = req->hdr.pcifunc; + struct nix_ipolicer *ipolicer; + struct nix_hw *nix_hw; + + if (!rvu->hw->cap.ipolicer) + return NIX_AF_ERR_IPOLICER_NOTSUPP; + + err = nix_get_struct_ptrs(rvu, pcifunc, &nix_hw, &blkaddr); + if (err) + return err; + + mutex_lock(&rvu->rsrc_lock); + for (layer = 0; layer < BAND_PROF_NUM_LAYERS; layer++) { + if (layer == BAND_PROF_INVAL_LAYER) + continue; + if (!req->prof_count[layer]) + continue; + + ipolicer = &nix_hw->ipolicer[layer]; + for (idx = 0; idx < req->prof_count[layer]; idx++) { + /* Allocate a max of 'MAX_BANDPROF_PER_PFFUNC' profiles */ + if (idx == MAX_BANDPROF_PER_PFFUNC) + break; + + prof = rvu_alloc_rsrc(&ipolicer->band_prof); + if (prof < 0) + break; + rsp->prof_count[layer]++; + rsp->prof_idx[layer][idx] = prof; + ipolicer->pfvf_map[prof] = pcifunc; + } + } + mutex_unlock(&rvu->rsrc_lock); + return 0; +} + +static int nix_free_all_bandprof(struct rvu *rvu, u16 pcifunc) +{ + int blkaddr, layer, prof_idx, err; + struct nix_ipolicer *ipolicer; + struct nix_hw *nix_hw; + + if (!rvu->hw->cap.ipolicer) + return NIX_AF_ERR_IPOLICER_NOTSUPP; + + err = nix_get_struct_ptrs(rvu, pcifunc, &nix_hw, &blkaddr); + if (err) + return err; + + mutex_lock(&rvu->rsrc_lock); + /* Free all the profiles allocated to the PCIFUNC */ + for (layer = 0; layer < BAND_PROF_NUM_LAYERS; layer++) { + if (layer == BAND_PROF_INVAL_LAYER) + continue; + ipolicer = &nix_hw->ipolicer[layer]; + + for (prof_idx = 0; prof_idx < ipolicer->band_prof.max; prof_idx++) { + if (ipolicer->pfvf_map[prof_idx] != pcifunc) + continue; + + /* Clear ratelimit aggregation, if any */ + if (layer == BAND_PROF_LEAF_LAYER && + ipolicer->match_id[prof_idx]) + nix_clear_ratelimit_aggr(rvu, nix_hw, prof_idx); + + ipolicer->pfvf_map[prof_idx] = 0x00; + ipolicer->match_id[prof_idx] = 0; + rvu_free_rsrc(&ipolicer->band_prof, prof_idx); + } + } + mutex_unlock(&rvu->rsrc_lock); + return 0; +} + +int rvu_mbox_handler_nix_bandprof_free(struct rvu *rvu, + struct nix_bandprof_free_req *req, + struct msg_rsp *rsp) +{ + int blkaddr, layer, prof_idx, idx, err; + u16 pcifunc = req->hdr.pcifunc; + struct nix_ipolicer *ipolicer; + struct nix_hw *nix_hw; + + if (req->free_all) + return nix_free_all_bandprof(rvu, pcifunc); + + if (!rvu->hw->cap.ipolicer) + return NIX_AF_ERR_IPOLICER_NOTSUPP; + + err = nix_get_struct_ptrs(rvu, pcifunc, &nix_hw, &blkaddr); + if (err) + return err; + + mutex_lock(&rvu->rsrc_lock); + /* Free the requested profile indices */ + for (layer = 0; layer < BAND_PROF_NUM_LAYERS; layer++) { + if (layer == BAND_PROF_INVAL_LAYER) + continue; + if (!req->prof_count[layer]) + continue; + + ipolicer = &nix_hw->ipolicer[layer]; + for (idx = 0; idx < req->prof_count[layer]; idx++) { + if (idx == MAX_BANDPROF_PER_PFFUNC) + break; + prof_idx = req->prof_idx[layer][idx]; + if (prof_idx >= ipolicer->band_prof.max || + ipolicer->pfvf_map[prof_idx] != pcifunc) + continue; + + /* Clear ratelimit aggregation, if any */ + if (layer == BAND_PROF_LEAF_LAYER && + ipolicer->match_id[prof_idx]) + nix_clear_ratelimit_aggr(rvu, nix_hw, prof_idx); + + ipolicer->pfvf_map[prof_idx] = 0x00; + ipolicer->match_id[prof_idx] = 0; + rvu_free_rsrc(&ipolicer->band_prof, prof_idx); + } + } + mutex_unlock(&rvu->rsrc_lock); + return 0; +} + +int nix_aq_context_read(struct rvu *rvu, struct nix_hw *nix_hw, + struct nix_cn10k_aq_enq_req *aq_req, + struct nix_cn10k_aq_enq_rsp *aq_rsp, + u16 pcifunc, u8 ctype, u32 qidx) +{ + memset(aq_req, 0, sizeof(struct nix_cn10k_aq_enq_req)); + aq_req->hdr.pcifunc = pcifunc; + aq_req->ctype = ctype; + aq_req->op = NIX_AQ_INSTOP_READ; + aq_req->qidx = qidx; + + return rvu_nix_blk_aq_enq_inst(rvu, nix_hw, + (struct nix_aq_enq_req *)aq_req, + (struct nix_aq_enq_rsp *)aq_rsp); +} + +static int nix_ipolicer_map_leaf_midprofs(struct rvu *rvu, + struct nix_hw *nix_hw, + struct nix_cn10k_aq_enq_req *aq_req, + struct nix_cn10k_aq_enq_rsp *aq_rsp, + u32 leaf_prof, u16 mid_prof) +{ + memset(aq_req, 0, sizeof(struct nix_cn10k_aq_enq_req)); + aq_req->hdr.pcifunc = 0x00; + aq_req->ctype = NIX_AQ_CTYPE_BANDPROF; + aq_req->op = NIX_AQ_INSTOP_WRITE; + aq_req->qidx = leaf_prof; + + aq_req->prof.band_prof_id = mid_prof; + aq_req->prof_mask.band_prof_id = GENMASK(6, 0); + aq_req->prof.hl_en = 1; + aq_req->prof_mask.hl_en = 1; + + return rvu_nix_blk_aq_enq_inst(rvu, nix_hw, + (struct nix_aq_enq_req *)aq_req, + (struct nix_aq_enq_rsp *)aq_rsp); +} + +int rvu_nix_setup_ratelimit_aggr(struct rvu *rvu, u16 pcifunc, + u16 rq_idx, u16 match_id) +{ + int leaf_prof, mid_prof, leaf_match; + struct nix_cn10k_aq_enq_req aq_req; + struct nix_cn10k_aq_enq_rsp aq_rsp; + struct nix_ipolicer *ipolicer; + struct nix_hw *nix_hw; + int blkaddr, idx, rc; + + if (!rvu->hw->cap.ipolicer) + return 0; + + rc = nix_get_struct_ptrs(rvu, pcifunc, &nix_hw, &blkaddr); + if (rc) + return rc; + + /* Fetch the RQ's context to see if policing is enabled */ + rc = nix_aq_context_read(rvu, nix_hw, &aq_req, &aq_rsp, pcifunc, + NIX_AQ_CTYPE_RQ, rq_idx); + if (rc) { + dev_err(rvu->dev, + "%s: Failed to fetch RQ%d context of PFFUNC 0x%x\n", + __func__, rq_idx, pcifunc); + return rc; + } + + if (!aq_rsp.rq.policer_ena) + return 0; + + /* Get the bandwidth profile ID mapped to this RQ */ + leaf_prof = aq_rsp.rq.band_prof_id; + + ipolicer = &nix_hw->ipolicer[BAND_PROF_LEAF_LAYER]; + ipolicer->match_id[leaf_prof] = match_id; + + /* Check if any other leaf profile is marked with same match_id */ + for (idx = 0; idx < ipolicer->band_prof.max; idx++) { + if (idx == leaf_prof) + continue; + if (ipolicer->match_id[idx] != match_id) + continue; + + leaf_match = idx; + break; + } + + if (idx == ipolicer->band_prof.max) + return 0; + + /* Fetch the matching profile's context to check if it's already + * mapped to a mid level profile. + */ + rc = nix_aq_context_read(rvu, nix_hw, &aq_req, &aq_rsp, 0x00, + NIX_AQ_CTYPE_BANDPROF, leaf_match); + if (rc) { + dev_err(rvu->dev, + "%s: Failed to fetch context of leaf profile %d\n", + __func__, leaf_match); + return rc; + } + + ipolicer = &nix_hw->ipolicer[BAND_PROF_MID_LAYER]; + if (aq_rsp.prof.hl_en) { + /* Get Mid layer prof index and map leaf_prof index + * also such that flows that are being steered + * to different RQs and marked with same match_id + * are rate limited in a aggregate fashion + */ + mid_prof = aq_rsp.prof.band_prof_id; + rc = nix_ipolicer_map_leaf_midprofs(rvu, nix_hw, + &aq_req, &aq_rsp, + leaf_prof, mid_prof); + if (rc) { + dev_err(rvu->dev, + "%s: Failed to map leaf(%d) and mid(%d) profiles\n", + __func__, leaf_prof, mid_prof); + goto exit; + } + + mutex_lock(&rvu->rsrc_lock); + ipolicer->ref_count[mid_prof]++; + mutex_unlock(&rvu->rsrc_lock); + goto exit; + } + + /* Allocate a mid layer profile and + * map both 'leaf_prof' and 'leaf_match' profiles to it. + */ + mutex_lock(&rvu->rsrc_lock); + mid_prof = rvu_alloc_rsrc(&ipolicer->band_prof); + if (mid_prof < 0) { + dev_err(rvu->dev, + "%s: Unable to allocate mid layer profile\n", __func__); + mutex_unlock(&rvu->rsrc_lock); + goto exit; + } + mutex_unlock(&rvu->rsrc_lock); + ipolicer->pfvf_map[mid_prof] = 0x00; + ipolicer->ref_count[mid_prof] = 0; + + /* Initialize mid layer profile same as 'leaf_prof' */ + rc = nix_aq_context_read(rvu, nix_hw, &aq_req, &aq_rsp, 0x00, + NIX_AQ_CTYPE_BANDPROF, leaf_prof); + if (rc) { + dev_err(rvu->dev, + "%s: Failed to fetch context of leaf profile %d\n", + __func__, leaf_prof); + goto exit; + } + + memset(&aq_req, 0, sizeof(struct nix_cn10k_aq_enq_req)); + aq_req.hdr.pcifunc = 0x00; + aq_req.qidx = (mid_prof & 0x3FFF) | (BAND_PROF_MID_LAYER << 14); + aq_req.ctype = NIX_AQ_CTYPE_BANDPROF; + aq_req.op = NIX_AQ_INSTOP_WRITE; + memcpy(&aq_req.prof, &aq_rsp.prof, sizeof(struct nix_bandprof_s)); + memset((char *)&aq_req.prof_mask, 0xff, sizeof(struct nix_bandprof_s)); + /* Clear higher layer enable bit in the mid profile, just in case */ + aq_req.prof.hl_en = 0; + aq_req.prof_mask.hl_en = 1; + + rc = rvu_nix_blk_aq_enq_inst(rvu, nix_hw, + (struct nix_aq_enq_req *)&aq_req, NULL); + if (rc) { + dev_err(rvu->dev, + "%s: Failed to INIT context of mid layer profile %d\n", + __func__, mid_prof); + goto exit; + } + + /* Map both leaf profiles to this mid layer profile */ + rc = nix_ipolicer_map_leaf_midprofs(rvu, nix_hw, + &aq_req, &aq_rsp, + leaf_prof, mid_prof); + if (rc) { + dev_err(rvu->dev, + "%s: Failed to map leaf(%d) and mid(%d) profiles\n", + __func__, leaf_prof, mid_prof); + goto exit; + } + + mutex_lock(&rvu->rsrc_lock); + ipolicer->ref_count[mid_prof]++; + mutex_unlock(&rvu->rsrc_lock); + + rc = nix_ipolicer_map_leaf_midprofs(rvu, nix_hw, + &aq_req, &aq_rsp, + leaf_match, mid_prof); + if (rc) { + dev_err(rvu->dev, + "%s: Failed to map leaf(%d) and mid(%d) profiles\n", + __func__, leaf_match, mid_prof); + ipolicer->ref_count[mid_prof]--; + goto exit; + } + + mutex_lock(&rvu->rsrc_lock); + ipolicer->ref_count[mid_prof]++; + mutex_unlock(&rvu->rsrc_lock); + +exit: + return rc; +} + +/* Called with mutex rsrc_lock */ +static void nix_clear_ratelimit_aggr(struct rvu *rvu, struct nix_hw *nix_hw, + u32 leaf_prof) +{ + struct nix_cn10k_aq_enq_req aq_req; + struct nix_cn10k_aq_enq_rsp aq_rsp; + struct nix_ipolicer *ipolicer; + u16 mid_prof; + int rc; + + mutex_unlock(&rvu->rsrc_lock); + + rc = nix_aq_context_read(rvu, nix_hw, &aq_req, &aq_rsp, 0x00, + NIX_AQ_CTYPE_BANDPROF, leaf_prof); + + mutex_lock(&rvu->rsrc_lock); + if (rc) { + dev_err(rvu->dev, + "%s: Failed to fetch context of leaf profile %d\n", + __func__, leaf_prof); + return; + } + + if (!aq_rsp.prof.hl_en) + return; + + mid_prof = aq_rsp.prof.band_prof_id; + ipolicer = &nix_hw->ipolicer[BAND_PROF_MID_LAYER]; + ipolicer->ref_count[mid_prof]--; + /* If ref_count is zero, free mid layer profile */ + if (!ipolicer->ref_count[mid_prof]) { + ipolicer->pfvf_map[mid_prof] = 0x00; + rvu_free_rsrc(&ipolicer->band_prof, mid_prof); + } +} + +int rvu_mbox_handler_nix_bandprof_get_hwinfo(struct rvu *rvu, struct msg_req *req, + struct nix_bandprof_get_hwinfo_rsp *rsp) +{ + struct nix_ipolicer *ipolicer; + int blkaddr, layer, err; + struct nix_hw *nix_hw; + u64 tu; + + if (!rvu->hw->cap.ipolicer) + return NIX_AF_ERR_IPOLICER_NOTSUPP; + + err = nix_get_struct_ptrs(rvu, req->hdr.pcifunc, &nix_hw, &blkaddr); + if (err) + return err; + + /* Return number of bandwidth profiles free at each layer */ + mutex_lock(&rvu->rsrc_lock); + for (layer = 0; layer < BAND_PROF_NUM_LAYERS; layer++) { + if (layer == BAND_PROF_INVAL_LAYER) + continue; + + ipolicer = &nix_hw->ipolicer[layer]; + rsp->prof_count[layer] = rvu_rsrc_free_count(&ipolicer->band_prof); + } + mutex_unlock(&rvu->rsrc_lock); + + /* Set the policer timeunit in nanosec */ + tu = rvu_read64(rvu, blkaddr, NIX_AF_PL_TS) & GENMASK_ULL(9, 0); + rsp->policer_timeunit = (tu + 1) * 100; + + return 0; +} diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rvu_npa.c b/drivers/net/ethernet/marvell/octeontx2/af/rvu_npa.c new file mode 100644 index 000000000..4f5ca5ab1 --- /dev/null +++ b/drivers/net/ethernet/marvell/octeontx2/af/rvu_npa.c @@ -0,0 +1,601 @@ +// SPDX-License-Identifier: GPL-2.0 +/* Marvell RVU Admin Function driver + * + * Copyright (C) 2018 Marvell. + * + */ +#include <linux/bitfield.h> +#include <linux/module.h> +#include <linux/pci.h> + +#include "rvu_struct.h" +#include "rvu_reg.h" +#include "rvu.h" + +static int npa_aq_enqueue_wait(struct rvu *rvu, struct rvu_block *block, + struct npa_aq_inst_s *inst) +{ + struct admin_queue *aq = block->aq; + struct npa_aq_res_s *result; + int timeout = 1000; + u64 reg, head; + + result = (struct npa_aq_res_s *)aq->res->base; + + /* Get current head pointer where to append this instruction */ + reg = rvu_read64(rvu, block->addr, NPA_AF_AQ_STATUS); + head = (reg >> 4) & AQ_PTR_MASK; + + memcpy((void *)(aq->inst->base + (head * aq->inst->entry_sz)), + (void *)inst, aq->inst->entry_sz); + memset(result, 0, sizeof(*result)); + /* sync into memory */ + wmb(); + + /* Ring the doorbell and wait for result */ + rvu_write64(rvu, block->addr, NPA_AF_AQ_DOOR, 1); + while (result->compcode == NPA_AQ_COMP_NOTDONE) { + cpu_relax(); + udelay(1); + timeout--; + if (!timeout) + return -EBUSY; + } + + if (result->compcode != NPA_AQ_COMP_GOOD) { + /* TODO: Replace this with some error code */ + if (result->compcode == NPA_AQ_COMP_CTX_FAULT || + result->compcode == NPA_AQ_COMP_LOCKERR || + result->compcode == NPA_AQ_COMP_CTX_POISON) { + if (rvu_ndc_fix_locked_cacheline(rvu, BLKADDR_NDC_NPA0)) + dev_err(rvu->dev, + "%s: Not able to unlock cachelines\n", __func__); + } + + return -EBUSY; + } + + return 0; +} + +int rvu_npa_aq_enq_inst(struct rvu *rvu, struct npa_aq_enq_req *req, + struct npa_aq_enq_rsp *rsp) +{ + struct rvu_hwinfo *hw = rvu->hw; + u16 pcifunc = req->hdr.pcifunc; + int blkaddr, npalf, rc = 0; + struct npa_aq_inst_s inst; + struct rvu_block *block; + struct admin_queue *aq; + struct rvu_pfvf *pfvf; + void *ctx, *mask; + bool ena; + + pfvf = rvu_get_pfvf(rvu, pcifunc); + if (!pfvf->aura_ctx || req->aura_id >= pfvf->aura_ctx->qsize) + return NPA_AF_ERR_AQ_ENQUEUE; + + blkaddr = rvu_get_blkaddr(rvu, BLKTYPE_NPA, pcifunc); + if (!pfvf->npalf || blkaddr < 0) + return NPA_AF_ERR_AF_LF_INVALID; + + block = &hw->block[blkaddr]; + aq = block->aq; + if (!aq) { + dev_warn(rvu->dev, "%s: NPA AQ not initialized\n", __func__); + return NPA_AF_ERR_AQ_ENQUEUE; + } + + npalf = rvu_get_lf(rvu, block, pcifunc, 0); + if (npalf < 0) + return NPA_AF_ERR_AF_LF_INVALID; + + memset(&inst, 0, sizeof(struct npa_aq_inst_s)); + inst.cindex = req->aura_id; + inst.lf = npalf; + inst.ctype = req->ctype; + inst.op = req->op; + /* Currently we are not supporting enqueuing multiple instructions, + * so always choose first entry in result memory. + */ + inst.res_addr = (u64)aq->res->iova; + + /* Hardware uses same aq->res->base for updating result of + * previous instruction hence wait here till it is done. + */ + spin_lock(&aq->lock); + + /* Clean result + context memory */ + memset(aq->res->base, 0, aq->res->entry_sz); + /* Context needs to be written at RES_ADDR + 128 */ + ctx = aq->res->base + 128; + /* Mask needs to be written at RES_ADDR + 256 */ + mask = aq->res->base + 256; + + switch (req->op) { + case NPA_AQ_INSTOP_WRITE: + /* Copy context and write mask */ + if (req->ctype == NPA_AQ_CTYPE_AURA) { + memcpy(mask, &req->aura_mask, + sizeof(struct npa_aura_s)); + memcpy(ctx, &req->aura, sizeof(struct npa_aura_s)); + } else { + memcpy(mask, &req->pool_mask, + sizeof(struct npa_pool_s)); + memcpy(ctx, &req->pool, sizeof(struct npa_pool_s)); + } + break; + case NPA_AQ_INSTOP_INIT: + if (req->ctype == NPA_AQ_CTYPE_AURA) { + if (req->aura.pool_addr >= pfvf->pool_ctx->qsize) { + rc = NPA_AF_ERR_AQ_FULL; + break; + } + /* Set pool's context address */ + req->aura.pool_addr = pfvf->pool_ctx->iova + + (req->aura.pool_addr * pfvf->pool_ctx->entry_sz); + memcpy(ctx, &req->aura, sizeof(struct npa_aura_s)); + } else { /* POOL's context */ + memcpy(ctx, &req->pool, sizeof(struct npa_pool_s)); + } + break; + case NPA_AQ_INSTOP_NOP: + case NPA_AQ_INSTOP_READ: + case NPA_AQ_INSTOP_LOCK: + case NPA_AQ_INSTOP_UNLOCK: + break; + default: + rc = NPA_AF_ERR_AQ_FULL; + break; + } + + if (rc) { + spin_unlock(&aq->lock); + return rc; + } + + /* Submit the instruction to AQ */ + rc = npa_aq_enqueue_wait(rvu, block, &inst); + if (rc) { + spin_unlock(&aq->lock); + return rc; + } + + /* Set aura bitmap if aura hw context is enabled */ + if (req->ctype == NPA_AQ_CTYPE_AURA) { + if (req->op == NPA_AQ_INSTOP_INIT && req->aura.ena) + __set_bit(req->aura_id, pfvf->aura_bmap); + if (req->op == NPA_AQ_INSTOP_WRITE) { + ena = (req->aura.ena & req->aura_mask.ena) | + (test_bit(req->aura_id, pfvf->aura_bmap) & + ~req->aura_mask.ena); + if (ena) + __set_bit(req->aura_id, pfvf->aura_bmap); + else + __clear_bit(req->aura_id, pfvf->aura_bmap); + } + } + + /* Set pool bitmap if pool hw context is enabled */ + if (req->ctype == NPA_AQ_CTYPE_POOL) { + if (req->op == NPA_AQ_INSTOP_INIT && req->pool.ena) + __set_bit(req->aura_id, pfvf->pool_bmap); + if (req->op == NPA_AQ_INSTOP_WRITE) { + ena = (req->pool.ena & req->pool_mask.ena) | + (test_bit(req->aura_id, pfvf->pool_bmap) & + ~req->pool_mask.ena); + if (ena) + __set_bit(req->aura_id, pfvf->pool_bmap); + else + __clear_bit(req->aura_id, pfvf->pool_bmap); + } + } + spin_unlock(&aq->lock); + + if (rsp) { + /* Copy read context into mailbox */ + if (req->op == NPA_AQ_INSTOP_READ) { + if (req->ctype == NPA_AQ_CTYPE_AURA) + memcpy(&rsp->aura, ctx, + sizeof(struct npa_aura_s)); + else + memcpy(&rsp->pool, ctx, + sizeof(struct npa_pool_s)); + } + } + + return 0; +} + +static int npa_lf_hwctx_disable(struct rvu *rvu, struct hwctx_disable_req *req) +{ + struct rvu_pfvf *pfvf = rvu_get_pfvf(rvu, req->hdr.pcifunc); + struct npa_aq_enq_req aq_req; + unsigned long *bmap; + int id, cnt = 0; + int err = 0, rc; + + if (!pfvf->pool_ctx || !pfvf->aura_ctx) + return NPA_AF_ERR_AQ_ENQUEUE; + + memset(&aq_req, 0, sizeof(struct npa_aq_enq_req)); + aq_req.hdr.pcifunc = req->hdr.pcifunc; + + if (req->ctype == NPA_AQ_CTYPE_POOL) { + aq_req.pool.ena = 0; + aq_req.pool_mask.ena = 1; + cnt = pfvf->pool_ctx->qsize; + bmap = pfvf->pool_bmap; + } else if (req->ctype == NPA_AQ_CTYPE_AURA) { + aq_req.aura.ena = 0; + aq_req.aura_mask.ena = 1; + aq_req.aura.bp_ena = 0; + aq_req.aura_mask.bp_ena = 1; + cnt = pfvf->aura_ctx->qsize; + bmap = pfvf->aura_bmap; + } + + aq_req.ctype = req->ctype; + aq_req.op = NPA_AQ_INSTOP_WRITE; + + for (id = 0; id < cnt; id++) { + if (!test_bit(id, bmap)) + continue; + aq_req.aura_id = id; + rc = rvu_npa_aq_enq_inst(rvu, &aq_req, NULL); + if (rc) { + err = rc; + dev_err(rvu->dev, "Failed to disable %s:%d context\n", + (req->ctype == NPA_AQ_CTYPE_AURA) ? + "Aura" : "Pool", id); + } + } + + return err; +} + +#ifdef CONFIG_NDC_DIS_DYNAMIC_CACHING +static int npa_lf_hwctx_lockdown(struct rvu *rvu, struct npa_aq_enq_req *req) +{ + struct npa_aq_enq_req lock_ctx_req; + int err; + + if (req->op != NPA_AQ_INSTOP_INIT) + return 0; + + memset(&lock_ctx_req, 0, sizeof(struct npa_aq_enq_req)); + lock_ctx_req.hdr.pcifunc = req->hdr.pcifunc; + lock_ctx_req.ctype = req->ctype; + lock_ctx_req.op = NPA_AQ_INSTOP_LOCK; + lock_ctx_req.aura_id = req->aura_id; + err = rvu_npa_aq_enq_inst(rvu, &lock_ctx_req, NULL); + if (err) + dev_err(rvu->dev, + "PFUNC 0x%x: Failed to lock NPA context %s:%d\n", + req->hdr.pcifunc, + (req->ctype == NPA_AQ_CTYPE_AURA) ? + "Aura" : "Pool", req->aura_id); + return err; +} + +int rvu_mbox_handler_npa_aq_enq(struct rvu *rvu, + struct npa_aq_enq_req *req, + struct npa_aq_enq_rsp *rsp) +{ + int err; + + err = rvu_npa_aq_enq_inst(rvu, req, rsp); + if (!err) + err = npa_lf_hwctx_lockdown(rvu, req); + return err; +} +#else + +int rvu_mbox_handler_npa_aq_enq(struct rvu *rvu, + struct npa_aq_enq_req *req, + struct npa_aq_enq_rsp *rsp) +{ + return rvu_npa_aq_enq_inst(rvu, req, rsp); +} +#endif + +int rvu_mbox_handler_npa_hwctx_disable(struct rvu *rvu, + struct hwctx_disable_req *req, + struct msg_rsp *rsp) +{ + return npa_lf_hwctx_disable(rvu, req); +} + +static void npa_ctx_free(struct rvu *rvu, struct rvu_pfvf *pfvf) +{ + kfree(pfvf->aura_bmap); + pfvf->aura_bmap = NULL; + + qmem_free(rvu->dev, pfvf->aura_ctx); + pfvf->aura_ctx = NULL; + + kfree(pfvf->pool_bmap); + pfvf->pool_bmap = NULL; + + qmem_free(rvu->dev, pfvf->pool_ctx); + pfvf->pool_ctx = NULL; + + qmem_free(rvu->dev, pfvf->npa_qints_ctx); + pfvf->npa_qints_ctx = NULL; +} + +int rvu_mbox_handler_npa_lf_alloc(struct rvu *rvu, + struct npa_lf_alloc_req *req, + struct npa_lf_alloc_rsp *rsp) +{ + int npalf, qints, hwctx_size, err, rc = 0; + struct rvu_hwinfo *hw = rvu->hw; + u16 pcifunc = req->hdr.pcifunc; + struct rvu_block *block; + struct rvu_pfvf *pfvf; + u64 cfg, ctx_cfg; + int blkaddr; + + if (req->aura_sz > NPA_AURA_SZ_MAX || + req->aura_sz == NPA_AURA_SZ_0 || !req->nr_pools) + return NPA_AF_ERR_PARAM; + + if (req->way_mask) + req->way_mask &= 0xFFFF; + + pfvf = rvu_get_pfvf(rvu, pcifunc); + blkaddr = rvu_get_blkaddr(rvu, BLKTYPE_NPA, pcifunc); + if (!pfvf->npalf || blkaddr < 0) + return NPA_AF_ERR_AF_LF_INVALID; + + block = &hw->block[blkaddr]; + npalf = rvu_get_lf(rvu, block, pcifunc, 0); + if (npalf < 0) + return NPA_AF_ERR_AF_LF_INVALID; + + /* Reset this NPA LF */ + err = rvu_lf_reset(rvu, block, npalf); + if (err) { + dev_err(rvu->dev, "Failed to reset NPALF%d\n", npalf); + return NPA_AF_ERR_LF_RESET; + } + + ctx_cfg = rvu_read64(rvu, blkaddr, NPA_AF_CONST1); + + /* Alloc memory for aura HW contexts */ + hwctx_size = 1UL << (ctx_cfg & 0xF); + err = qmem_alloc(rvu->dev, &pfvf->aura_ctx, + NPA_AURA_COUNT(req->aura_sz), hwctx_size); + if (err) + goto free_mem; + + pfvf->aura_bmap = kcalloc(NPA_AURA_COUNT(req->aura_sz), sizeof(long), + GFP_KERNEL); + if (!pfvf->aura_bmap) + goto free_mem; + + /* Alloc memory for pool HW contexts */ + hwctx_size = 1UL << ((ctx_cfg >> 4) & 0xF); + err = qmem_alloc(rvu->dev, &pfvf->pool_ctx, req->nr_pools, hwctx_size); + if (err) + goto free_mem; + + pfvf->pool_bmap = kcalloc(NPA_AURA_COUNT(req->aura_sz), sizeof(long), + GFP_KERNEL); + if (!pfvf->pool_bmap) + goto free_mem; + + /* Get no of queue interrupts supported */ + cfg = rvu_read64(rvu, blkaddr, NPA_AF_CONST); + qints = (cfg >> 28) & 0xFFF; + + /* Alloc memory for Qints HW contexts */ + hwctx_size = 1UL << ((ctx_cfg >> 8) & 0xF); + err = qmem_alloc(rvu->dev, &pfvf->npa_qints_ctx, qints, hwctx_size); + if (err) + goto free_mem; + + cfg = rvu_read64(rvu, blkaddr, NPA_AF_LFX_AURAS_CFG(npalf)); + /* Clear way partition mask and set aura offset to '0' */ + cfg &= ~(BIT_ULL(34) - 1); + /* Set aura size & enable caching of contexts */ + cfg |= (req->aura_sz << 16) | BIT_ULL(34) | req->way_mask; + + rvu_write64(rvu, blkaddr, NPA_AF_LFX_AURAS_CFG(npalf), cfg); + + /* Configure aura HW context's base */ + rvu_write64(rvu, blkaddr, NPA_AF_LFX_LOC_AURAS_BASE(npalf), + (u64)pfvf->aura_ctx->iova); + + /* Enable caching of qints hw context */ + rvu_write64(rvu, blkaddr, NPA_AF_LFX_QINTS_CFG(npalf), + BIT_ULL(36) | req->way_mask << 20); + rvu_write64(rvu, blkaddr, NPA_AF_LFX_QINTS_BASE(npalf), + (u64)pfvf->npa_qints_ctx->iova); + + goto exit; + +free_mem: + npa_ctx_free(rvu, pfvf); + rc = -ENOMEM; + +exit: + /* set stack page info */ + cfg = rvu_read64(rvu, blkaddr, NPA_AF_CONST); + rsp->stack_pg_ptrs = (cfg >> 8) & 0xFF; + rsp->stack_pg_bytes = cfg & 0xFF; + rsp->qints = (cfg >> 28) & 0xFFF; + if (!is_rvu_otx2(rvu)) { + cfg = rvu_read64(rvu, block->addr, NPA_AF_BATCH_CTL); + rsp->cache_lines = (cfg >> 1) & 0x3F; + } + return rc; +} + +int rvu_mbox_handler_npa_lf_free(struct rvu *rvu, struct msg_req *req, + struct msg_rsp *rsp) +{ + struct rvu_hwinfo *hw = rvu->hw; + u16 pcifunc = req->hdr.pcifunc; + struct rvu_block *block; + struct rvu_pfvf *pfvf; + int npalf, err; + int blkaddr; + + pfvf = rvu_get_pfvf(rvu, pcifunc); + blkaddr = rvu_get_blkaddr(rvu, BLKTYPE_NPA, pcifunc); + if (!pfvf->npalf || blkaddr < 0) + return NPA_AF_ERR_AF_LF_INVALID; + + block = &hw->block[blkaddr]; + npalf = rvu_get_lf(rvu, block, pcifunc, 0); + if (npalf < 0) + return NPA_AF_ERR_AF_LF_INVALID; + + /* Reset this NPA LF */ + err = rvu_lf_reset(rvu, block, npalf); + if (err) { + dev_err(rvu->dev, "Failed to reset NPALF%d\n", npalf); + return NPA_AF_ERR_LF_RESET; + } + + npa_ctx_free(rvu, pfvf); + + return 0; +} + +static int npa_aq_init(struct rvu *rvu, struct rvu_block *block) +{ + u64 cfg; + int err; + + /* Set admin queue endianness */ + cfg = rvu_read64(rvu, block->addr, NPA_AF_GEN_CFG); +#ifdef __BIG_ENDIAN + cfg |= BIT_ULL(1); + rvu_write64(rvu, block->addr, NPA_AF_GEN_CFG, cfg); +#else + cfg &= ~BIT_ULL(1); + rvu_write64(rvu, block->addr, NPA_AF_GEN_CFG, cfg); +#endif + + /* Do not bypass NDC cache */ + cfg = rvu_read64(rvu, block->addr, NPA_AF_NDC_CFG); + cfg &= ~0x03DULL; +#ifdef CONFIG_NDC_DIS_DYNAMIC_CACHING + /* Disable caching of stack pages */ + cfg |= 0x10ULL; +#endif + rvu_write64(rvu, block->addr, NPA_AF_NDC_CFG, cfg); + + /* For CN10K NPA BATCH DMA set 35 cache lines */ + if (!is_rvu_otx2(rvu)) { + cfg = rvu_read64(rvu, block->addr, NPA_AF_BATCH_CTL); + cfg &= ~0x7EULL; + cfg |= BIT_ULL(6) | BIT_ULL(2) | BIT_ULL(1); + rvu_write64(rvu, block->addr, NPA_AF_BATCH_CTL, cfg); + } + /* Result structure can be followed by Aura/Pool context at + * RES + 128bytes and a write mask at RES + 256 bytes, depending on + * operation type. Alloc sufficient result memory for all operations. + */ + err = rvu_aq_alloc(rvu, &block->aq, + Q_COUNT(AQ_SIZE), sizeof(struct npa_aq_inst_s), + ALIGN(sizeof(struct npa_aq_res_s), 128) + 256); + if (err) + return err; + + rvu_write64(rvu, block->addr, NPA_AF_AQ_CFG, AQ_SIZE); + rvu_write64(rvu, block->addr, + NPA_AF_AQ_BASE, (u64)block->aq->inst->iova); + return 0; +} + +int rvu_npa_init(struct rvu *rvu) +{ + struct rvu_hwinfo *hw = rvu->hw; + int blkaddr; + + blkaddr = rvu_get_blkaddr(rvu, BLKTYPE_NPA, 0); + if (blkaddr < 0) + return 0; + + /* Initialize admin queue */ + return npa_aq_init(rvu, &hw->block[blkaddr]); +} + +void rvu_npa_freemem(struct rvu *rvu) +{ + struct rvu_hwinfo *hw = rvu->hw; + struct rvu_block *block; + int blkaddr; + + blkaddr = rvu_get_blkaddr(rvu, BLKTYPE_NPA, 0); + if (blkaddr < 0) + return; + + block = &hw->block[blkaddr]; + rvu_aq_free(rvu, block->aq); +} + +void rvu_npa_lf_teardown(struct rvu *rvu, u16 pcifunc, int npalf) +{ + struct rvu_pfvf *pfvf = rvu_get_pfvf(rvu, pcifunc); + struct hwctx_disable_req ctx_req; + + /* Disable all pools */ + ctx_req.hdr.pcifunc = pcifunc; + ctx_req.ctype = NPA_AQ_CTYPE_POOL; + npa_lf_hwctx_disable(rvu, &ctx_req); + + /* Disable all auras */ + ctx_req.ctype = NPA_AQ_CTYPE_AURA; + npa_lf_hwctx_disable(rvu, &ctx_req); + + npa_ctx_free(rvu, pfvf); +} + +/* Due to an Hardware errata, in some corner cases, AQ context lock + * operations can result in a NDC way getting into an illegal state + * of not valid but locked. + * + * This API solves the problem by clearing the lock bit of the NDC block. + * The operation needs to be done for each line of all the NDC banks. + */ +int rvu_ndc_fix_locked_cacheline(struct rvu *rvu, int blkaddr) +{ + int bank, max_bank, line, max_line, err; + u64 reg, ndc_af_const; + + /* Set the ENABLE bit(63) to '0' */ + reg = rvu_read64(rvu, blkaddr, NDC_AF_CAMS_RD_INTERVAL); + rvu_write64(rvu, blkaddr, NDC_AF_CAMS_RD_INTERVAL, reg & GENMASK_ULL(62, 0)); + + /* Poll until the BUSY bits(47:32) are set to '0' */ + err = rvu_poll_reg(rvu, blkaddr, NDC_AF_CAMS_RD_INTERVAL, GENMASK_ULL(47, 32), true); + if (err) { + dev_err(rvu->dev, "Timed out while polling for NDC CAM busy bits.\n"); + return err; + } + + ndc_af_const = rvu_read64(rvu, blkaddr, NDC_AF_CONST); + max_bank = FIELD_GET(NDC_AF_BANK_MASK, ndc_af_const); + max_line = FIELD_GET(NDC_AF_BANK_LINE_MASK, ndc_af_const); + for (bank = 0; bank < max_bank; bank++) { + for (line = 0; line < max_line; line++) { + /* Check if 'cache line valid bit(63)' is not set + * but 'cache line lock bit(60)' is set and on + * success, reset the lock bit(60). + */ + reg = rvu_read64(rvu, blkaddr, + NDC_AF_BANKX_LINEX_METADATA(bank, line)); + if (!(reg & BIT_ULL(63)) && (reg & BIT_ULL(60))) { + rvu_write64(rvu, blkaddr, + NDC_AF_BANKX_LINEX_METADATA(bank, line), + reg & ~BIT_ULL(60)); + } + } + } + + return 0; +} diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rvu_npc.c b/drivers/net/ethernet/marvell/octeontx2/af/rvu_npc.c new file mode 100644 index 000000000..0bcf3e559 --- /dev/null +++ b/drivers/net/ethernet/marvell/octeontx2/af/rvu_npc.c @@ -0,0 +1,3463 @@ +// SPDX-License-Identifier: GPL-2.0 +/* Marvell RVU Admin Function driver + * + * Copyright (C) 2018 Marvell. + * + */ + +#include <linux/bitfield.h> +#include <linux/module.h> +#include <linux/pci.h> + +#include "rvu_struct.h" +#include "rvu_reg.h" +#include "rvu.h" +#include "npc.h" +#include "cgx.h" +#include "npc_profile.h" +#include "rvu_npc_hash.h" + +#define RSVD_MCAM_ENTRIES_PER_PF 3 /* Broadcast, Promisc and AllMulticast */ +#define RSVD_MCAM_ENTRIES_PER_NIXLF 1 /* Ucast for LFs */ + +#define NPC_PARSE_RESULT_DMAC_OFFSET 8 +#define NPC_HW_TSTAMP_OFFSET 8ULL +#define NPC_KEX_CHAN_MASK 0xFFFULL +#define NPC_KEX_PF_FUNC_MASK 0xFFFFULL + +#define ALIGN_8B_CEIL(__a) (((__a) + 7) & (-8)) + +static const char def_pfl_name[] = "default"; + +static void npc_mcam_free_all_entries(struct rvu *rvu, struct npc_mcam *mcam, + int blkaddr, u16 pcifunc); +static void npc_mcam_free_all_counters(struct rvu *rvu, struct npc_mcam *mcam, + u16 pcifunc); + +bool is_npc_intf_tx(u8 intf) +{ + return !!(intf & 0x1); +} + +bool is_npc_intf_rx(u8 intf) +{ + return !(intf & 0x1); +} + +bool is_npc_interface_valid(struct rvu *rvu, u8 intf) +{ + struct rvu_hwinfo *hw = rvu->hw; + + return intf < hw->npc_intfs; +} + +int rvu_npc_get_tx_nibble_cfg(struct rvu *rvu, u64 nibble_ena) +{ + /* Due to a HW issue in these silicon versions, parse nibble enable + * configuration has to be identical for both Rx and Tx interfaces. + */ + if (is_rvu_96xx_B0(rvu)) + return nibble_ena; + return 0; +} + +static int npc_mcam_verify_pf_func(struct rvu *rvu, + struct mcam_entry *entry_data, u8 intf, + u16 pcifunc) +{ + u16 pf_func, pf_func_mask; + + if (is_npc_intf_rx(intf)) + return 0; + + pf_func_mask = (entry_data->kw_mask[0] >> 32) & + NPC_KEX_PF_FUNC_MASK; + pf_func = (entry_data->kw[0] >> 32) & NPC_KEX_PF_FUNC_MASK; + + pf_func = be16_to_cpu((__force __be16)pf_func); + if (pf_func_mask != NPC_KEX_PF_FUNC_MASK || + ((pf_func & ~RVU_PFVF_FUNC_MASK) != + (pcifunc & ~RVU_PFVF_FUNC_MASK))) + return -EINVAL; + + return 0; +} + +void rvu_npc_set_pkind(struct rvu *rvu, int pkind, struct rvu_pfvf *pfvf) +{ + int blkaddr; + u64 val = 0; + + blkaddr = rvu_get_blkaddr(rvu, BLKTYPE_NPC, 0); + if (blkaddr < 0) + return; + + /* Config CPI base for the PKIND */ + val = pkind | 1ULL << 62; + rvu_write64(rvu, blkaddr, NPC_AF_PKINDX_CPI_DEFX(pkind, 0), val); +} + +int rvu_npc_get_pkind(struct rvu *rvu, u16 pf) +{ + struct npc_pkind *pkind = &rvu->hw->pkind; + u32 map; + int i; + + for (i = 0; i < pkind->rsrc.max; i++) { + map = pkind->pfchan_map[i]; + if (((map >> 16) & 0x3F) == pf) + return i; + } + return -1; +} + +#define NPC_AF_ACTION0_PTR_ADVANCE GENMASK_ULL(27, 20) + +int npc_config_ts_kpuaction(struct rvu *rvu, int pf, u16 pcifunc, bool enable) +{ + int pkind, blkaddr; + u64 val; + + pkind = rvu_npc_get_pkind(rvu, pf); + if (pkind < 0) { + dev_err(rvu->dev, "%s: pkind not mapped\n", __func__); + return -EINVAL; + } + + blkaddr = rvu_get_blkaddr(rvu, BLKTYPE_NPC, pcifunc); + if (blkaddr < 0) { + dev_err(rvu->dev, "%s: NPC block not implemented\n", __func__); + return -EINVAL; + } + + val = rvu_read64(rvu, blkaddr, NPC_AF_PKINDX_ACTION0(pkind)); + val &= ~NPC_AF_ACTION0_PTR_ADVANCE; + /* If timestamp is enabled then configure NPC to shift 8 bytes */ + if (enable) + val |= FIELD_PREP(NPC_AF_ACTION0_PTR_ADVANCE, + NPC_HW_TSTAMP_OFFSET); + rvu_write64(rvu, blkaddr, NPC_AF_PKINDX_ACTION0(pkind), val); + + return 0; +} + +static int npc_get_ucast_mcam_index(struct npc_mcam *mcam, u16 pcifunc, + int nixlf) +{ + struct rvu_hwinfo *hw = container_of(mcam, struct rvu_hwinfo, mcam); + struct rvu *rvu = hw->rvu; + int blkaddr = 0, max = 0; + struct rvu_block *block; + struct rvu_pfvf *pfvf; + + pfvf = rvu_get_pfvf(rvu, pcifunc); + /* Given a PF/VF and NIX LF number calculate the unicast mcam + * entry index based on the NIX block assigned to the PF/VF. + */ + blkaddr = rvu_get_next_nix_blkaddr(rvu, blkaddr); + while (blkaddr) { + if (pfvf->nix_blkaddr == blkaddr) + break; + block = &rvu->hw->block[blkaddr]; + max += block->lf.max; + blkaddr = rvu_get_next_nix_blkaddr(rvu, blkaddr); + } + + return mcam->nixlf_offset + (max + nixlf) * RSVD_MCAM_ENTRIES_PER_NIXLF; +} + +int npc_get_nixlf_mcam_index(struct npc_mcam *mcam, + u16 pcifunc, int nixlf, int type) +{ + int pf = rvu_get_pf(pcifunc); + int index; + + /* Check if this is for a PF */ + if (pf && !(pcifunc & RVU_PFVF_FUNC_MASK)) { + /* Reserved entries exclude PF0 */ + pf--; + index = mcam->pf_offset + (pf * RSVD_MCAM_ENTRIES_PER_PF); + /* Broadcast address matching entry should be first so + * that the packet can be replicated to all VFs. + */ + if (type == NIXLF_BCAST_ENTRY) + return index; + else if (type == NIXLF_ALLMULTI_ENTRY) + return index + 1; + else if (type == NIXLF_PROMISC_ENTRY) + return index + 2; + } + + return npc_get_ucast_mcam_index(mcam, pcifunc, nixlf); +} + +int npc_get_bank(struct npc_mcam *mcam, int index) +{ + int bank = index / mcam->banksize; + + /* 0,1 & 2,3 banks are combined for this keysize */ + if (mcam->keysize == NPC_MCAM_KEY_X2) + return bank ? 2 : 0; + + return bank; +} + +bool is_mcam_entry_enabled(struct rvu *rvu, struct npc_mcam *mcam, + int blkaddr, int index) +{ + int bank = npc_get_bank(mcam, index); + u64 cfg; + + index &= (mcam->banksize - 1); + cfg = rvu_read64(rvu, blkaddr, NPC_AF_MCAMEX_BANKX_CFG(index, bank)); + return (cfg & 1); +} + +void npc_enable_mcam_entry(struct rvu *rvu, struct npc_mcam *mcam, + int blkaddr, int index, bool enable) +{ + int bank = npc_get_bank(mcam, index); + int actbank = bank; + + index &= (mcam->banksize - 1); + for (; bank < (actbank + mcam->banks_per_entry); bank++) { + rvu_write64(rvu, blkaddr, + NPC_AF_MCAMEX_BANKX_CFG(index, bank), + enable ? 1 : 0); + } +} + +static void npc_clear_mcam_entry(struct rvu *rvu, struct npc_mcam *mcam, + int blkaddr, int index) +{ + int bank = npc_get_bank(mcam, index); + int actbank = bank; + + index &= (mcam->banksize - 1); + for (; bank < (actbank + mcam->banks_per_entry); bank++) { + rvu_write64(rvu, blkaddr, + NPC_AF_MCAMEX_BANKX_CAMX_INTF(index, bank, 1), 0); + rvu_write64(rvu, blkaddr, + NPC_AF_MCAMEX_BANKX_CAMX_INTF(index, bank, 0), 0); + + rvu_write64(rvu, blkaddr, + NPC_AF_MCAMEX_BANKX_CAMX_W0(index, bank, 1), 0); + rvu_write64(rvu, blkaddr, + NPC_AF_MCAMEX_BANKX_CAMX_W0(index, bank, 0), 0); + + rvu_write64(rvu, blkaddr, + NPC_AF_MCAMEX_BANKX_CAMX_W1(index, bank, 1), 0); + rvu_write64(rvu, blkaddr, + NPC_AF_MCAMEX_BANKX_CAMX_W1(index, bank, 0), 0); + } +} + +static void npc_get_keyword(struct mcam_entry *entry, int idx, + u64 *cam0, u64 *cam1) +{ + u64 kw_mask = 0x00; + +#define CAM_MASK(n) (BIT_ULL(n) - 1) + + /* 0, 2, 4, 6 indices refer to BANKX_CAMX_W0 and + * 1, 3, 5, 7 indices refer to BANKX_CAMX_W1. + * + * Also, only 48 bits of BANKX_CAMX_W1 are valid. + */ + switch (idx) { + case 0: + /* BANK(X)_CAM_W0<63:0> = MCAM_KEY[KW0]<63:0> */ + *cam1 = entry->kw[0]; + kw_mask = entry->kw_mask[0]; + break; + case 1: + /* BANK(X)_CAM_W1<47:0> = MCAM_KEY[KW1]<47:0> */ + *cam1 = entry->kw[1] & CAM_MASK(48); + kw_mask = entry->kw_mask[1] & CAM_MASK(48); + break; + case 2: + /* BANK(X + 1)_CAM_W0<15:0> = MCAM_KEY[KW1]<63:48> + * BANK(X + 1)_CAM_W0<63:16> = MCAM_KEY[KW2]<47:0> + */ + *cam1 = (entry->kw[1] >> 48) & CAM_MASK(16); + *cam1 |= ((entry->kw[2] & CAM_MASK(48)) << 16); + kw_mask = (entry->kw_mask[1] >> 48) & CAM_MASK(16); + kw_mask |= ((entry->kw_mask[2] & CAM_MASK(48)) << 16); + break; + case 3: + /* BANK(X + 1)_CAM_W1<15:0> = MCAM_KEY[KW2]<63:48> + * BANK(X + 1)_CAM_W1<47:16> = MCAM_KEY[KW3]<31:0> + */ + *cam1 = (entry->kw[2] >> 48) & CAM_MASK(16); + *cam1 |= ((entry->kw[3] & CAM_MASK(32)) << 16); + kw_mask = (entry->kw_mask[2] >> 48) & CAM_MASK(16); + kw_mask |= ((entry->kw_mask[3] & CAM_MASK(32)) << 16); + break; + case 4: + /* BANK(X + 2)_CAM_W0<31:0> = MCAM_KEY[KW3]<63:32> + * BANK(X + 2)_CAM_W0<63:32> = MCAM_KEY[KW4]<31:0> + */ + *cam1 = (entry->kw[3] >> 32) & CAM_MASK(32); + *cam1 |= ((entry->kw[4] & CAM_MASK(32)) << 32); + kw_mask = (entry->kw_mask[3] >> 32) & CAM_MASK(32); + kw_mask |= ((entry->kw_mask[4] & CAM_MASK(32)) << 32); + break; + case 5: + /* BANK(X + 2)_CAM_W1<31:0> = MCAM_KEY[KW4]<63:32> + * BANK(X + 2)_CAM_W1<47:32> = MCAM_KEY[KW5]<15:0> + */ + *cam1 = (entry->kw[4] >> 32) & CAM_MASK(32); + *cam1 |= ((entry->kw[5] & CAM_MASK(16)) << 32); + kw_mask = (entry->kw_mask[4] >> 32) & CAM_MASK(32); + kw_mask |= ((entry->kw_mask[5] & CAM_MASK(16)) << 32); + break; + case 6: + /* BANK(X + 3)_CAM_W0<47:0> = MCAM_KEY[KW5]<63:16> + * BANK(X + 3)_CAM_W0<63:48> = MCAM_KEY[KW6]<15:0> + */ + *cam1 = (entry->kw[5] >> 16) & CAM_MASK(48); + *cam1 |= ((entry->kw[6] & CAM_MASK(16)) << 48); + kw_mask = (entry->kw_mask[5] >> 16) & CAM_MASK(48); + kw_mask |= ((entry->kw_mask[6] & CAM_MASK(16)) << 48); + break; + case 7: + /* BANK(X + 3)_CAM_W1<47:0> = MCAM_KEY[KW6]<63:16> */ + *cam1 = (entry->kw[6] >> 16) & CAM_MASK(48); + kw_mask = (entry->kw_mask[6] >> 16) & CAM_MASK(48); + break; + } + + *cam1 &= kw_mask; + *cam0 = ~*cam1 & kw_mask; +} + +static void npc_fill_entryword(struct mcam_entry *entry, int idx, + u64 cam0, u64 cam1) +{ + /* Similar to npc_get_keyword, but fills mcam_entry structure from + * CAM registers. + */ + switch (idx) { + case 0: + entry->kw[0] = cam1; + entry->kw_mask[0] = cam1 ^ cam0; + break; + case 1: + entry->kw[1] = cam1; + entry->kw_mask[1] = cam1 ^ cam0; + break; + case 2: + entry->kw[1] |= (cam1 & CAM_MASK(16)) << 48; + entry->kw[2] = (cam1 >> 16) & CAM_MASK(48); + entry->kw_mask[1] |= ((cam1 ^ cam0) & CAM_MASK(16)) << 48; + entry->kw_mask[2] = ((cam1 ^ cam0) >> 16) & CAM_MASK(48); + break; + case 3: + entry->kw[2] |= (cam1 & CAM_MASK(16)) << 48; + entry->kw[3] = (cam1 >> 16) & CAM_MASK(32); + entry->kw_mask[2] |= ((cam1 ^ cam0) & CAM_MASK(16)) << 48; + entry->kw_mask[3] = ((cam1 ^ cam0) >> 16) & CAM_MASK(32); + break; + case 4: + entry->kw[3] |= (cam1 & CAM_MASK(32)) << 32; + entry->kw[4] = (cam1 >> 32) & CAM_MASK(32); + entry->kw_mask[3] |= ((cam1 ^ cam0) & CAM_MASK(32)) << 32; + entry->kw_mask[4] = ((cam1 ^ cam0) >> 32) & CAM_MASK(32); + break; + case 5: + entry->kw[4] |= (cam1 & CAM_MASK(32)) << 32; + entry->kw[5] = (cam1 >> 32) & CAM_MASK(16); + entry->kw_mask[4] |= ((cam1 ^ cam0) & CAM_MASK(32)) << 32; + entry->kw_mask[5] = ((cam1 ^ cam0) >> 32) & CAM_MASK(16); + break; + case 6: + entry->kw[5] |= (cam1 & CAM_MASK(48)) << 16; + entry->kw[6] = (cam1 >> 48) & CAM_MASK(16); + entry->kw_mask[5] |= ((cam1 ^ cam0) & CAM_MASK(48)) << 16; + entry->kw_mask[6] = ((cam1 ^ cam0) >> 48) & CAM_MASK(16); + break; + case 7: + entry->kw[6] |= (cam1 & CAM_MASK(48)) << 16; + entry->kw_mask[6] |= ((cam1 ^ cam0) & CAM_MASK(48)) << 16; + break; + } +} + +static u64 npc_get_default_entry_action(struct rvu *rvu, struct npc_mcam *mcam, + int blkaddr, u16 pf_func) +{ + int bank, nixlf, index; + + /* get ucast entry rule entry index */ + if (nix_get_nixlf(rvu, pf_func, &nixlf, NULL)) { + dev_err(rvu->dev, "%s: nixlf not attached to pcifunc:0x%x\n", + __func__, pf_func); + /* Action 0 is drop */ + return 0; + } + + index = npc_get_nixlf_mcam_index(mcam, pf_func, nixlf, + NIXLF_UCAST_ENTRY); + bank = npc_get_bank(mcam, index); + index &= (mcam->banksize - 1); + + return rvu_read64(rvu, blkaddr, + NPC_AF_MCAMEX_BANKX_ACTION(index, bank)); +} + +static void npc_fixup_vf_rule(struct rvu *rvu, struct npc_mcam *mcam, + int blkaddr, int index, struct mcam_entry *entry, + bool *enable) +{ + struct rvu_npc_mcam_rule *rule; + u16 owner, target_func; + struct rvu_pfvf *pfvf; + u64 rx_action; + + owner = mcam->entry2pfvf_map[index]; + target_func = (entry->action >> 4) & 0xffff; + /* do nothing when target is LBK/PF or owner is not PF */ + if (is_pffunc_af(owner) || is_afvf(target_func) || + (owner & RVU_PFVF_FUNC_MASK) || + !(target_func & RVU_PFVF_FUNC_MASK)) + return; + + /* save entry2target_pffunc */ + pfvf = rvu_get_pfvf(rvu, target_func); + mcam->entry2target_pffunc[index] = target_func; + + /* don't enable rule when nixlf not attached or initialized */ + if (!(is_nixlf_attached(rvu, target_func) && + test_bit(NIXLF_INITIALIZED, &pfvf->flags))) + *enable = false; + + /* fix up not needed for the rules added by user(ntuple filters) */ + list_for_each_entry(rule, &mcam->mcam_rules, list) { + if (rule->entry == index) + return; + } + + /* copy VF default entry action to the VF mcam entry */ + rx_action = npc_get_default_entry_action(rvu, mcam, blkaddr, + target_func); + if (rx_action) + entry->action = rx_action; +} + +static void npc_config_mcam_entry(struct rvu *rvu, struct npc_mcam *mcam, + int blkaddr, int index, u8 intf, + struct mcam_entry *entry, bool enable) +{ + int bank = npc_get_bank(mcam, index); + int kw = 0, actbank, actindex; + u8 tx_intf_mask = ~intf & 0x3; + u8 tx_intf = intf; + u64 cam0, cam1; + + actbank = bank; /* Save bank id, to set action later on */ + actindex = index; + index &= (mcam->banksize - 1); + + /* Disable before mcam entry update */ + npc_enable_mcam_entry(rvu, mcam, blkaddr, actindex, false); + + /* Clear mcam entry to avoid writes being suppressed by NPC */ + npc_clear_mcam_entry(rvu, mcam, blkaddr, actindex); + + /* CAM1 takes the comparison value and + * CAM0 specifies match for a bit in key being '0' or '1' or 'dontcare'. + * CAM1<n> = 0 & CAM0<n> = 1 => match if key<n> = 0 + * CAM1<n> = 1 & CAM0<n> = 0 => match if key<n> = 1 + * CAM1<n> = 0 & CAM0<n> = 0 => always match i.e dontcare. + */ + for (; bank < (actbank + mcam->banks_per_entry); bank++, kw = kw + 2) { + /* Interface should be set in all banks */ + if (is_npc_intf_tx(intf)) { + /* Last bit must be set and rest don't care + * for TX interfaces + */ + tx_intf_mask = 0x1; + tx_intf = intf & tx_intf_mask; + tx_intf_mask = ~tx_intf & tx_intf_mask; + } + + rvu_write64(rvu, blkaddr, + NPC_AF_MCAMEX_BANKX_CAMX_INTF(index, bank, 1), + tx_intf); + rvu_write64(rvu, blkaddr, + NPC_AF_MCAMEX_BANKX_CAMX_INTF(index, bank, 0), + tx_intf_mask); + + /* Set the match key */ + npc_get_keyword(entry, kw, &cam0, &cam1); + rvu_write64(rvu, blkaddr, + NPC_AF_MCAMEX_BANKX_CAMX_W0(index, bank, 1), cam1); + rvu_write64(rvu, blkaddr, + NPC_AF_MCAMEX_BANKX_CAMX_W0(index, bank, 0), cam0); + + npc_get_keyword(entry, kw + 1, &cam0, &cam1); + rvu_write64(rvu, blkaddr, + NPC_AF_MCAMEX_BANKX_CAMX_W1(index, bank, 1), cam1); + rvu_write64(rvu, blkaddr, + NPC_AF_MCAMEX_BANKX_CAMX_W1(index, bank, 0), cam0); + } + + /* PF installing VF rule */ + if (is_npc_intf_rx(intf) && actindex < mcam->bmap_entries) + npc_fixup_vf_rule(rvu, mcam, blkaddr, actindex, entry, &enable); + + /* Set 'action' */ + rvu_write64(rvu, blkaddr, + NPC_AF_MCAMEX_BANKX_ACTION(index, actbank), entry->action); + + /* Set TAG 'action' */ + rvu_write64(rvu, blkaddr, NPC_AF_MCAMEX_BANKX_TAG_ACT(index, actbank), + entry->vtag_action); + + /* Enable the entry */ + if (enable) + npc_enable_mcam_entry(rvu, mcam, blkaddr, actindex, true); +} + +void npc_read_mcam_entry(struct rvu *rvu, struct npc_mcam *mcam, + int blkaddr, u16 src, + struct mcam_entry *entry, u8 *intf, u8 *ena) +{ + int sbank = npc_get_bank(mcam, src); + int bank, kw = 0; + u64 cam0, cam1; + + src &= (mcam->banksize - 1); + bank = sbank; + + for (; bank < (sbank + mcam->banks_per_entry); bank++, kw = kw + 2) { + cam1 = rvu_read64(rvu, blkaddr, + NPC_AF_MCAMEX_BANKX_CAMX_W0(src, bank, 1)); + cam0 = rvu_read64(rvu, blkaddr, + NPC_AF_MCAMEX_BANKX_CAMX_W0(src, bank, 0)); + npc_fill_entryword(entry, kw, cam0, cam1); + + cam1 = rvu_read64(rvu, blkaddr, + NPC_AF_MCAMEX_BANKX_CAMX_W1(src, bank, 1)); + cam0 = rvu_read64(rvu, blkaddr, + NPC_AF_MCAMEX_BANKX_CAMX_W1(src, bank, 0)); + npc_fill_entryword(entry, kw + 1, cam0, cam1); + } + + entry->action = rvu_read64(rvu, blkaddr, + NPC_AF_MCAMEX_BANKX_ACTION(src, sbank)); + entry->vtag_action = + rvu_read64(rvu, blkaddr, + NPC_AF_MCAMEX_BANKX_TAG_ACT(src, sbank)); + *intf = rvu_read64(rvu, blkaddr, + NPC_AF_MCAMEX_BANKX_CAMX_INTF(src, sbank, 1)) & 3; + *ena = rvu_read64(rvu, blkaddr, + NPC_AF_MCAMEX_BANKX_CFG(src, sbank)) & 1; +} + +static void npc_copy_mcam_entry(struct rvu *rvu, struct npc_mcam *mcam, + int blkaddr, u16 src, u16 dest) +{ + int dbank = npc_get_bank(mcam, dest); + int sbank = npc_get_bank(mcam, src); + u64 cfg, sreg, dreg; + int bank, i; + + src &= (mcam->banksize - 1); + dest &= (mcam->banksize - 1); + + /* Copy INTF's, W0's, W1's CAM0 and CAM1 configuration */ + for (bank = 0; bank < mcam->banks_per_entry; bank++) { + sreg = NPC_AF_MCAMEX_BANKX_CAMX_INTF(src, sbank + bank, 0); + dreg = NPC_AF_MCAMEX_BANKX_CAMX_INTF(dest, dbank + bank, 0); + for (i = 0; i < 6; i++) { + cfg = rvu_read64(rvu, blkaddr, sreg + (i * 8)); + rvu_write64(rvu, blkaddr, dreg + (i * 8), cfg); + } + } + + /* Copy action */ + cfg = rvu_read64(rvu, blkaddr, + NPC_AF_MCAMEX_BANKX_ACTION(src, sbank)); + rvu_write64(rvu, blkaddr, + NPC_AF_MCAMEX_BANKX_ACTION(dest, dbank), cfg); + + /* Copy TAG action */ + cfg = rvu_read64(rvu, blkaddr, + NPC_AF_MCAMEX_BANKX_TAG_ACT(src, sbank)); + rvu_write64(rvu, blkaddr, + NPC_AF_MCAMEX_BANKX_TAG_ACT(dest, dbank), cfg); + + /* Enable or disable */ + cfg = rvu_read64(rvu, blkaddr, + NPC_AF_MCAMEX_BANKX_CFG(src, sbank)); + rvu_write64(rvu, blkaddr, + NPC_AF_MCAMEX_BANKX_CFG(dest, dbank), cfg); +} + +static u64 npc_get_mcam_action(struct rvu *rvu, struct npc_mcam *mcam, + int blkaddr, int index) +{ + int bank = npc_get_bank(mcam, index); + + index &= (mcam->banksize - 1); + return rvu_read64(rvu, blkaddr, + NPC_AF_MCAMEX_BANKX_ACTION(index, bank)); +} + +void rvu_npc_install_ucast_entry(struct rvu *rvu, u16 pcifunc, + int nixlf, u64 chan, u8 *mac_addr) +{ + struct rvu_pfvf *pfvf = rvu_get_pfvf(rvu, pcifunc); + struct npc_install_flow_req req = { 0 }; + struct npc_install_flow_rsp rsp = { 0 }; + struct npc_mcam *mcam = &rvu->hw->mcam; + struct nix_rx_action action = { 0 }; + int blkaddr, index; + + /* AF's and SDP VFs work in promiscuous mode */ + if (is_afvf(pcifunc) || is_sdp_vf(pcifunc)) + return; + + blkaddr = rvu_get_blkaddr(rvu, BLKTYPE_NPC, 0); + if (blkaddr < 0) + return; + + /* Ucast rule should not be installed if DMAC + * extraction is not supported by the profile. + */ + if (!npc_is_feature_supported(rvu, BIT_ULL(NPC_DMAC), pfvf->nix_rx_intf)) + return; + + index = npc_get_nixlf_mcam_index(mcam, pcifunc, + nixlf, NIXLF_UCAST_ENTRY); + + /* Don't change the action if entry is already enabled + * Otherwise RSS action may get overwritten. + */ + if (is_mcam_entry_enabled(rvu, mcam, blkaddr, index)) { + *(u64 *)&action = npc_get_mcam_action(rvu, mcam, + blkaddr, index); + } else { + action.op = NIX_RX_ACTIONOP_UCAST; + action.pf_func = pcifunc; + } + + req.default_rule = 1; + ether_addr_copy(req.packet.dmac, mac_addr); + eth_broadcast_addr((u8 *)&req.mask.dmac); + req.features = BIT_ULL(NPC_DMAC); + req.channel = chan; + req.chan_mask = 0xFFFU; + req.intf = pfvf->nix_rx_intf; + req.op = action.op; + req.hdr.pcifunc = 0; /* AF is requester */ + req.vf = action.pf_func; + req.index = action.index; + req.match_id = action.match_id; + req.flow_key_alg = action.flow_key_alg; + + rvu_mbox_handler_npc_install_flow(rvu, &req, &rsp); +} + +void rvu_npc_install_promisc_entry(struct rvu *rvu, u16 pcifunc, + int nixlf, u64 chan, u8 chan_cnt) +{ + struct rvu_pfvf *pfvf = rvu_get_pfvf(rvu, pcifunc); + struct npc_install_flow_req req = { 0 }; + struct npc_install_flow_rsp rsp = { 0 }; + struct npc_mcam *mcam = &rvu->hw->mcam; + struct rvu_hwinfo *hw = rvu->hw; + int blkaddr, ucast_idx, index; + struct nix_rx_action action = { 0 }; + u64 relaxed_mask; + u8 flow_key_alg; + + if (!hw->cap.nix_rx_multicast && is_cgx_vf(rvu, pcifunc)) + return; + + blkaddr = rvu_get_blkaddr(rvu, BLKTYPE_NPC, 0); + if (blkaddr < 0) + return; + + index = npc_get_nixlf_mcam_index(mcam, pcifunc, + nixlf, NIXLF_PROMISC_ENTRY); + + if (is_cgx_vf(rvu, pcifunc)) + index = npc_get_nixlf_mcam_index(mcam, + pcifunc & ~RVU_PFVF_FUNC_MASK, + nixlf, NIXLF_PROMISC_ENTRY); + + /* If the corresponding PF's ucast action is RSS, + * use the same action for promisc also + */ + ucast_idx = npc_get_nixlf_mcam_index(mcam, pcifunc, + nixlf, NIXLF_UCAST_ENTRY); + if (is_mcam_entry_enabled(rvu, mcam, blkaddr, ucast_idx)) + *(u64 *)&action = npc_get_mcam_action(rvu, mcam, + blkaddr, ucast_idx); + + if (action.op != NIX_RX_ACTIONOP_RSS) { + *(u64 *)&action = 0; + action.op = NIX_RX_ACTIONOP_UCAST; + } + + flow_key_alg = action.flow_key_alg; + + /* RX_ACTION set to MCAST for CGX PF's */ + if (hw->cap.nix_rx_multicast && pfvf->use_mce_list && + is_pf_cgxmapped(rvu, rvu_get_pf(pcifunc))) { + *(u64 *)&action = 0; + action.op = NIX_RX_ACTIONOP_MCAST; + pfvf = rvu_get_pfvf(rvu, pcifunc & ~RVU_PFVF_FUNC_MASK); + action.index = pfvf->promisc_mce_idx; + } + + /* For cn10k the upper two bits of the channel number are + * cpt channel number. with masking out these bits in the + * mcam entry, same entry used for NIX will allow packets + * received from cpt for parsing. + */ + if (!is_rvu_otx2(rvu)) { + req.chan_mask = NIX_CHAN_CPT_X2P_MASK; + } else { + req.chan_mask = 0xFFFU; + } + + if (chan_cnt > 1) { + if (!is_power_of_2(chan_cnt)) { + dev_err(rvu->dev, + "%s: channel count more than 1, must be power of 2\n", __func__); + return; + } + relaxed_mask = GENMASK_ULL(BITS_PER_LONG_LONG - 1, + ilog2(chan_cnt)); + req.chan_mask &= relaxed_mask; + } + + req.channel = chan; + req.intf = pfvf->nix_rx_intf; + req.entry = index; + req.op = action.op; + req.hdr.pcifunc = 0; /* AF is requester */ + req.vf = pcifunc; + req.index = action.index; + req.match_id = action.match_id; + req.flow_key_alg = flow_key_alg; + + rvu_mbox_handler_npc_install_flow(rvu, &req, &rsp); +} + +void rvu_npc_enable_promisc_entry(struct rvu *rvu, u16 pcifunc, + int nixlf, bool enable) +{ + struct npc_mcam *mcam = &rvu->hw->mcam; + int blkaddr, index; + + blkaddr = rvu_get_blkaddr(rvu, BLKTYPE_NPC, 0); + if (blkaddr < 0) + return; + + /* Get 'pcifunc' of PF device */ + pcifunc = pcifunc & ~RVU_PFVF_FUNC_MASK; + + index = npc_get_nixlf_mcam_index(mcam, pcifunc, + nixlf, NIXLF_PROMISC_ENTRY); + npc_enable_mcam_entry(rvu, mcam, blkaddr, index, enable); +} + +void rvu_npc_install_bcast_match_entry(struct rvu *rvu, u16 pcifunc, + int nixlf, u64 chan) +{ + struct rvu_pfvf *pfvf; + struct npc_install_flow_req req = { 0 }; + struct npc_install_flow_rsp rsp = { 0 }; + struct npc_mcam *mcam = &rvu->hw->mcam; + struct rvu_hwinfo *hw = rvu->hw; + int blkaddr, index; + + blkaddr = rvu_get_blkaddr(rvu, BLKTYPE_NPC, 0); + if (blkaddr < 0) + return; + + /* Skip LBK VFs */ + if (is_afvf(pcifunc)) + return; + + /* If pkt replication is not supported, + * then only PF is allowed to add a bcast match entry. + */ + if (!hw->cap.nix_rx_multicast && is_vf(pcifunc)) + return; + + /* Get 'pcifunc' of PF device */ + pcifunc = pcifunc & ~RVU_PFVF_FUNC_MASK; + pfvf = rvu_get_pfvf(rvu, pcifunc); + + /* Bcast rule should not be installed if both DMAC + * and LXMB extraction is not supported by the profile. + */ + if (!npc_is_feature_supported(rvu, BIT_ULL(NPC_DMAC), pfvf->nix_rx_intf) && + !npc_is_feature_supported(rvu, BIT_ULL(NPC_LXMB), pfvf->nix_rx_intf)) + return; + + index = npc_get_nixlf_mcam_index(mcam, pcifunc, + nixlf, NIXLF_BCAST_ENTRY); + + if (!hw->cap.nix_rx_multicast) { + /* Early silicon doesn't support pkt replication, + * so install entry with UCAST action, so that PF + * receives all broadcast packets. + */ + req.op = NIX_RX_ACTIONOP_UCAST; + } else { + req.op = NIX_RX_ACTIONOP_MCAST; + req.index = pfvf->bcast_mce_idx; + } + + eth_broadcast_addr((u8 *)&req.packet.dmac); + eth_broadcast_addr((u8 *)&req.mask.dmac); + req.features = BIT_ULL(NPC_DMAC); + req.channel = chan; + req.chan_mask = 0xFFFU; + req.intf = pfvf->nix_rx_intf; + req.entry = index; + req.hdr.pcifunc = 0; /* AF is requester */ + req.vf = pcifunc; + + rvu_mbox_handler_npc_install_flow(rvu, &req, &rsp); +} + +void rvu_npc_enable_bcast_entry(struct rvu *rvu, u16 pcifunc, int nixlf, + bool enable) +{ + struct npc_mcam *mcam = &rvu->hw->mcam; + int blkaddr, index; + + blkaddr = rvu_get_blkaddr(rvu, BLKTYPE_NPC, 0); + if (blkaddr < 0) + return; + + /* Get 'pcifunc' of PF device */ + pcifunc = pcifunc & ~RVU_PFVF_FUNC_MASK; + + index = npc_get_nixlf_mcam_index(mcam, pcifunc, nixlf, + NIXLF_BCAST_ENTRY); + npc_enable_mcam_entry(rvu, mcam, blkaddr, index, enable); +} + +void rvu_npc_install_allmulti_entry(struct rvu *rvu, u16 pcifunc, int nixlf, + u64 chan) +{ + struct npc_install_flow_req req = { 0 }; + struct npc_install_flow_rsp rsp = { 0 }; + struct npc_mcam *mcam = &rvu->hw->mcam; + struct rvu_hwinfo *hw = rvu->hw; + int blkaddr, ucast_idx, index; + u8 mac_addr[ETH_ALEN] = { 0 }; + struct nix_rx_action action = { 0 }; + struct rvu_pfvf *pfvf; + u8 flow_key_alg; + u16 vf_func; + + /* Only CGX PF/VF can add allmulticast entry */ + if (is_afvf(pcifunc) && is_sdp_vf(pcifunc)) + return; + + blkaddr = rvu_get_blkaddr(rvu, BLKTYPE_NPC, 0); + if (blkaddr < 0) + return; + + /* Get 'pcifunc' of PF device */ + vf_func = pcifunc & RVU_PFVF_FUNC_MASK; + pcifunc = pcifunc & ~RVU_PFVF_FUNC_MASK; + pfvf = rvu_get_pfvf(rvu, pcifunc); + + /* Mcast rule should not be installed if both DMAC + * and LXMB extraction is not supported by the profile. + */ + if (!npc_is_feature_supported(rvu, BIT_ULL(NPC_DMAC), pfvf->nix_rx_intf) && + !npc_is_feature_supported(rvu, BIT_ULL(NPC_LXMB), pfvf->nix_rx_intf)) + return; + + index = npc_get_nixlf_mcam_index(mcam, pcifunc, + nixlf, NIXLF_ALLMULTI_ENTRY); + + /* If the corresponding PF's ucast action is RSS, + * use the same action for multicast entry also + */ + ucast_idx = npc_get_nixlf_mcam_index(mcam, pcifunc, + nixlf, NIXLF_UCAST_ENTRY); + if (is_mcam_entry_enabled(rvu, mcam, blkaddr, ucast_idx)) + *(u64 *)&action = npc_get_mcam_action(rvu, mcam, + blkaddr, ucast_idx); + + flow_key_alg = action.flow_key_alg; + if (action.op != NIX_RX_ACTIONOP_RSS) { + *(u64 *)&action = 0; + action.op = NIX_RX_ACTIONOP_UCAST; + action.pf_func = pcifunc; + } + + /* RX_ACTION set to MCAST for CGX PF's */ + if (hw->cap.nix_rx_multicast && pfvf->use_mce_list) { + *(u64 *)&action = 0; + action.op = NIX_RX_ACTIONOP_MCAST; + action.index = pfvf->mcast_mce_idx; + } + + mac_addr[0] = 0x01; /* LSB bit of 1st byte in DMAC */ + ether_addr_copy(req.packet.dmac, mac_addr); + ether_addr_copy(req.mask.dmac, mac_addr); + req.features = BIT_ULL(NPC_DMAC); + + /* For cn10k the upper two bits of the channel number are + * cpt channel number. with masking out these bits in the + * mcam entry, same entry used for NIX will allow packets + * received from cpt for parsing. + */ + if (!is_rvu_otx2(rvu)) + req.chan_mask = NIX_CHAN_CPT_X2P_MASK; + else + req.chan_mask = 0xFFFU; + + req.channel = chan; + req.intf = pfvf->nix_rx_intf; + req.entry = index; + req.op = action.op; + req.hdr.pcifunc = 0; /* AF is requester */ + req.vf = pcifunc | vf_func; + req.index = action.index; + req.match_id = action.match_id; + req.flow_key_alg = flow_key_alg; + + rvu_mbox_handler_npc_install_flow(rvu, &req, &rsp); +} + +void rvu_npc_enable_allmulti_entry(struct rvu *rvu, u16 pcifunc, int nixlf, + bool enable) +{ + struct npc_mcam *mcam = &rvu->hw->mcam; + int blkaddr, index; + + blkaddr = rvu_get_blkaddr(rvu, BLKTYPE_NPC, 0); + if (blkaddr < 0) + return; + + /* Get 'pcifunc' of PF device */ + pcifunc = pcifunc & ~RVU_PFVF_FUNC_MASK; + + index = npc_get_nixlf_mcam_index(mcam, pcifunc, nixlf, + NIXLF_ALLMULTI_ENTRY); + npc_enable_mcam_entry(rvu, mcam, blkaddr, index, enable); +} + +static void npc_update_vf_flow_entry(struct rvu *rvu, struct npc_mcam *mcam, + int blkaddr, u16 pcifunc, u64 rx_action) +{ + int actindex, index, bank, entry; + struct rvu_npc_mcam_rule *rule; + bool enable, update; + + if (!(pcifunc & RVU_PFVF_FUNC_MASK)) + return; + + mutex_lock(&mcam->lock); + for (index = 0; index < mcam->bmap_entries; index++) { + if (mcam->entry2target_pffunc[index] == pcifunc) { + update = true; + /* update not needed for the rules added via ntuple filters */ + list_for_each_entry(rule, &mcam->mcam_rules, list) { + if (rule->entry == index) + update = false; + } + if (!update) + continue; + bank = npc_get_bank(mcam, index); + actindex = index; + entry = index & (mcam->banksize - 1); + + /* read vf flow entry enable status */ + enable = is_mcam_entry_enabled(rvu, mcam, blkaddr, + actindex); + /* disable before mcam entry update */ + npc_enable_mcam_entry(rvu, mcam, blkaddr, actindex, + false); + /* update 'action' */ + rvu_write64(rvu, blkaddr, + NPC_AF_MCAMEX_BANKX_ACTION(entry, bank), + rx_action); + if (enable) + npc_enable_mcam_entry(rvu, mcam, blkaddr, + actindex, true); + } + } + mutex_unlock(&mcam->lock); +} + +static void npc_update_rx_action_with_alg_idx(struct rvu *rvu, struct nix_rx_action action, + struct rvu_pfvf *pfvf, int mcam_index, int blkaddr, + int alg_idx) + +{ + struct npc_mcam *mcam = &rvu->hw->mcam; + struct rvu_hwinfo *hw = rvu->hw; + int bank, op_rss; + + if (!is_mcam_entry_enabled(rvu, mcam, blkaddr, mcam_index)) + return; + + op_rss = (!hw->cap.nix_rx_multicast || !pfvf->use_mce_list); + + bank = npc_get_bank(mcam, mcam_index); + mcam_index &= (mcam->banksize - 1); + + /* If Rx action is MCAST update only RSS algorithm index */ + if (!op_rss) { + *(u64 *)&action = rvu_read64(rvu, blkaddr, + NPC_AF_MCAMEX_BANKX_ACTION(mcam_index, bank)); + + action.flow_key_alg = alg_idx; + } + rvu_write64(rvu, blkaddr, + NPC_AF_MCAMEX_BANKX_ACTION(mcam_index, bank), *(u64 *)&action); +} + +void rvu_npc_update_flowkey_alg_idx(struct rvu *rvu, u16 pcifunc, int nixlf, + int group, int alg_idx, int mcam_index) +{ + struct npc_mcam *mcam = &rvu->hw->mcam; + struct nix_rx_action action; + int blkaddr, index, bank; + struct rvu_pfvf *pfvf; + + blkaddr = rvu_get_blkaddr(rvu, BLKTYPE_NPC, 0); + if (blkaddr < 0) + return; + + /* Check if this is for reserved default entry */ + if (mcam_index < 0) { + if (group != DEFAULT_RSS_CONTEXT_GROUP) + return; + index = npc_get_nixlf_mcam_index(mcam, pcifunc, + nixlf, NIXLF_UCAST_ENTRY); + } else { + /* TODO: validate this mcam index */ + index = mcam_index; + } + + if (index >= mcam->total_entries) + return; + + bank = npc_get_bank(mcam, index); + index &= (mcam->banksize - 1); + + *(u64 *)&action = rvu_read64(rvu, blkaddr, + NPC_AF_MCAMEX_BANKX_ACTION(index, bank)); + /* Ignore if no action was set earlier */ + if (!*(u64 *)&action) + return; + + action.op = NIX_RX_ACTIONOP_RSS; + action.pf_func = pcifunc; + action.index = group; + action.flow_key_alg = alg_idx; + + rvu_write64(rvu, blkaddr, + NPC_AF_MCAMEX_BANKX_ACTION(index, bank), *(u64 *)&action); + + /* update the VF flow rule action with the VF default entry action */ + if (mcam_index < 0) + npc_update_vf_flow_entry(rvu, mcam, blkaddr, pcifunc, + *(u64 *)&action); + + /* update the action change in default rule */ + pfvf = rvu_get_pfvf(rvu, pcifunc); + if (pfvf->def_ucast_rule) + pfvf->def_ucast_rule->rx_action = action; + + index = npc_get_nixlf_mcam_index(mcam, pcifunc, + nixlf, NIXLF_PROMISC_ENTRY); + + /* If PF's promiscuous entry is enabled, + * Set RSS action for that entry as well + */ + npc_update_rx_action_with_alg_idx(rvu, action, pfvf, index, blkaddr, + alg_idx); + + index = npc_get_nixlf_mcam_index(mcam, pcifunc, + nixlf, NIXLF_ALLMULTI_ENTRY); + /* If PF's allmulti entry is enabled, + * Set RSS action for that entry as well + */ + npc_update_rx_action_with_alg_idx(rvu, action, pfvf, index, blkaddr, + alg_idx); +} + +void npc_enadis_default_mce_entry(struct rvu *rvu, u16 pcifunc, + int nixlf, int type, bool enable) +{ + struct npc_mcam *mcam = &rvu->hw->mcam; + struct rvu_hwinfo *hw = rvu->hw; + struct nix_mce_list *mce_list; + int index, blkaddr, mce_idx; + struct rvu_pfvf *pfvf; + + blkaddr = rvu_get_blkaddr(rvu, BLKTYPE_NPC, 0); + if (blkaddr < 0) + return; + + index = npc_get_nixlf_mcam_index(mcam, pcifunc & ~RVU_PFVF_FUNC_MASK, + nixlf, type); + + /* disable MCAM entry when packet replication is not supported by hw */ + if (!hw->cap.nix_rx_multicast && !is_vf(pcifunc)) { + npc_enable_mcam_entry(rvu, mcam, blkaddr, index, enable); + return; + } + + /* return incase mce list is not enabled */ + pfvf = rvu_get_pfvf(rvu, pcifunc & ~RVU_PFVF_FUNC_MASK); + if (hw->cap.nix_rx_multicast && is_vf(pcifunc) && + type != NIXLF_BCAST_ENTRY && !pfvf->use_mce_list) + return; + + nix_get_mce_list(rvu, pcifunc, type, &mce_list, &mce_idx); + + nix_update_mce_list(rvu, pcifunc, mce_list, + mce_idx, index, enable); + if (enable) + npc_enable_mcam_entry(rvu, mcam, blkaddr, index, enable); +} + +static void npc_enadis_default_entries(struct rvu *rvu, u16 pcifunc, + int nixlf, bool enable) +{ + struct npc_mcam *mcam = &rvu->hw->mcam; + int index, blkaddr; + + blkaddr = rvu_get_blkaddr(rvu, BLKTYPE_NPC, 0); + if (blkaddr < 0) + return; + + /* Ucast MCAM match entry of this PF/VF */ + index = npc_get_nixlf_mcam_index(mcam, pcifunc, + nixlf, NIXLF_UCAST_ENTRY); + npc_enable_mcam_entry(rvu, mcam, blkaddr, index, enable); + + /* Nothing to do for VFs, on platforms where pkt replication + * is not supported + */ + if ((pcifunc & RVU_PFVF_FUNC_MASK) && !rvu->hw->cap.nix_rx_multicast) + return; + + /* add/delete pf_func to broadcast MCE list */ + npc_enadis_default_mce_entry(rvu, pcifunc, nixlf, + NIXLF_BCAST_ENTRY, enable); +} + +void rvu_npc_disable_default_entries(struct rvu *rvu, u16 pcifunc, int nixlf) +{ + if (nixlf < 0) + return; + + npc_enadis_default_entries(rvu, pcifunc, nixlf, false); + + /* Delete multicast and promisc MCAM entries */ + npc_enadis_default_mce_entry(rvu, pcifunc, nixlf, + NIXLF_ALLMULTI_ENTRY, false); + npc_enadis_default_mce_entry(rvu, pcifunc, nixlf, + NIXLF_PROMISC_ENTRY, false); +} + +bool rvu_npc_enable_mcam_by_entry_index(struct rvu *rvu, int entry, int intf, bool enable) +{ + int blkaddr = rvu_get_blkaddr(rvu, BLKTYPE_NPC, 0); + struct npc_mcam *mcam = &rvu->hw->mcam; + struct rvu_npc_mcam_rule *rule, *tmp; + + mutex_lock(&mcam->lock); + + list_for_each_entry_safe(rule, tmp, &mcam->mcam_rules, list) { + if (rule->intf != intf) + continue; + + if (rule->entry != entry) + continue; + + rule->enable = enable; + mutex_unlock(&mcam->lock); + + npc_enable_mcam_entry(rvu, mcam, blkaddr, + entry, enable); + + return true; + } + + mutex_unlock(&mcam->lock); + return false; +} + +void rvu_npc_enable_default_entries(struct rvu *rvu, u16 pcifunc, int nixlf) +{ + if (nixlf < 0) + return; + + /* Enables only broadcast match entry. Promisc/Allmulti are enabled + * in set_rx_mode mbox handler. + */ + npc_enadis_default_entries(rvu, pcifunc, nixlf, true); +} + +void rvu_npc_disable_mcam_entries(struct rvu *rvu, u16 pcifunc, int nixlf) +{ + struct rvu_pfvf *pfvf = rvu_get_pfvf(rvu, pcifunc); + struct npc_mcam *mcam = &rvu->hw->mcam; + struct rvu_npc_mcam_rule *rule, *tmp; + int blkaddr; + + blkaddr = rvu_get_blkaddr(rvu, BLKTYPE_NPC, 0); + if (blkaddr < 0) + return; + + mutex_lock(&mcam->lock); + + /* Disable MCAM entries directing traffic to this 'pcifunc' */ + list_for_each_entry_safe(rule, tmp, &mcam->mcam_rules, list) { + if (is_npc_intf_rx(rule->intf) && + rule->rx_action.pf_func == pcifunc && + rule->rx_action.op != NIX_RX_ACTIONOP_MCAST) { + npc_enable_mcam_entry(rvu, mcam, blkaddr, + rule->entry, false); + rule->enable = false; + /* Indicate that default rule is disabled */ + if (rule->default_rule) { + pfvf->def_ucast_rule = NULL; + list_del(&rule->list); + kfree(rule); + } + } + } + + mutex_unlock(&mcam->lock); + + npc_mcam_disable_flows(rvu, pcifunc); + + rvu_npc_disable_default_entries(rvu, pcifunc, nixlf); +} + +void rvu_npc_free_mcam_entries(struct rvu *rvu, u16 pcifunc, int nixlf) +{ + struct npc_mcam *mcam = &rvu->hw->mcam; + struct rvu_npc_mcam_rule *rule, *tmp; + int blkaddr; + + blkaddr = rvu_get_blkaddr(rvu, BLKTYPE_NPC, 0); + if (blkaddr < 0) + return; + + mutex_lock(&mcam->lock); + + /* Free all MCAM entries owned by this 'pcifunc' */ + npc_mcam_free_all_entries(rvu, mcam, blkaddr, pcifunc); + + /* Free all MCAM counters owned by this 'pcifunc' */ + npc_mcam_free_all_counters(rvu, mcam, pcifunc); + + /* Delete MCAM entries owned by this 'pcifunc' */ + list_for_each_entry_safe(rule, tmp, &mcam->mcam_rules, list) { + if (rule->owner == pcifunc && !rule->default_rule) { + list_del(&rule->list); + kfree(rule); + } + } + + mutex_unlock(&mcam->lock); + + rvu_npc_disable_default_entries(rvu, pcifunc, nixlf); +} + +static void npc_program_mkex_rx(struct rvu *rvu, int blkaddr, + struct npc_mcam_kex *mkex, u8 intf) +{ + int lid, lt, ld, fl; + + if (is_npc_intf_tx(intf)) + return; + + rvu_write64(rvu, blkaddr, NPC_AF_INTFX_KEX_CFG(intf), + mkex->keyx_cfg[NIX_INTF_RX]); + + /* Program LDATA */ + for (lid = 0; lid < NPC_MAX_LID; lid++) { + for (lt = 0; lt < NPC_MAX_LT; lt++) { + for (ld = 0; ld < NPC_MAX_LD; ld++) + SET_KEX_LD(intf, lid, lt, ld, + mkex->intf_lid_lt_ld[NIX_INTF_RX] + [lid][lt][ld]); + } + } + /* Program LFLAGS */ + for (ld = 0; ld < NPC_MAX_LD; ld++) { + for (fl = 0; fl < NPC_MAX_LFL; fl++) + SET_KEX_LDFLAGS(intf, ld, fl, + mkex->intf_ld_flags[NIX_INTF_RX] + [ld][fl]); + } +} + +static void npc_program_mkex_tx(struct rvu *rvu, int blkaddr, + struct npc_mcam_kex *mkex, u8 intf) +{ + int lid, lt, ld, fl; + + if (is_npc_intf_rx(intf)) + return; + + rvu_write64(rvu, blkaddr, NPC_AF_INTFX_KEX_CFG(intf), + mkex->keyx_cfg[NIX_INTF_TX]); + + /* Program LDATA */ + for (lid = 0; lid < NPC_MAX_LID; lid++) { + for (lt = 0; lt < NPC_MAX_LT; lt++) { + for (ld = 0; ld < NPC_MAX_LD; ld++) + SET_KEX_LD(intf, lid, lt, ld, + mkex->intf_lid_lt_ld[NIX_INTF_TX] + [lid][lt][ld]); + } + } + /* Program LFLAGS */ + for (ld = 0; ld < NPC_MAX_LD; ld++) { + for (fl = 0; fl < NPC_MAX_LFL; fl++) + SET_KEX_LDFLAGS(intf, ld, fl, + mkex->intf_ld_flags[NIX_INTF_TX] + [ld][fl]); + } +} + +static void npc_program_mkex_profile(struct rvu *rvu, int blkaddr, + struct npc_mcam_kex *mkex) +{ + struct rvu_hwinfo *hw = rvu->hw; + u8 intf; + int ld; + + for (ld = 0; ld < NPC_MAX_LD; ld++) + rvu_write64(rvu, blkaddr, NPC_AF_KEX_LDATAX_FLAGS_CFG(ld), + mkex->kex_ld_flags[ld]); + + for (intf = 0; intf < hw->npc_intfs; intf++) { + npc_program_mkex_rx(rvu, blkaddr, mkex, intf); + npc_program_mkex_tx(rvu, blkaddr, mkex, intf); + } + + /* Programme mkex hash profile */ + npc_program_mkex_hash(rvu, blkaddr); +} + +static int npc_fwdb_prfl_img_map(struct rvu *rvu, void __iomem **prfl_img_addr, + u64 *size) +{ + u64 prfl_addr, prfl_sz; + + if (!rvu->fwdata) + return -EINVAL; + + prfl_addr = rvu->fwdata->mcam_addr; + prfl_sz = rvu->fwdata->mcam_sz; + + if (!prfl_addr || !prfl_sz) + return -EINVAL; + + *prfl_img_addr = ioremap_wc(prfl_addr, prfl_sz); + if (!(*prfl_img_addr)) + return -ENOMEM; + + *size = prfl_sz; + + return 0; +} + +/* strtoull of "mkexprof" with base:36 */ +#define MKEX_END_SIGN 0xdeadbeef + +static void npc_load_mkex_profile(struct rvu *rvu, int blkaddr, + const char *mkex_profile) +{ + struct device *dev = &rvu->pdev->dev; + struct npc_mcam_kex *mcam_kex; + void __iomem *mkex_prfl_addr = NULL; + u64 prfl_sz; + int ret; + + /* If user not selected mkex profile */ + if (rvu->kpu_fwdata_sz || + !strncmp(mkex_profile, def_pfl_name, MKEX_NAME_LEN)) + goto program_mkex; + + /* Setting up the mapping for mkex profile image */ + ret = npc_fwdb_prfl_img_map(rvu, &mkex_prfl_addr, &prfl_sz); + if (ret < 0) + goto program_mkex; + + mcam_kex = (struct npc_mcam_kex __force *)mkex_prfl_addr; + + while (((s64)prfl_sz > 0) && (mcam_kex->mkex_sign != MKEX_END_SIGN)) { + /* Compare with mkex mod_param name string */ + if (mcam_kex->mkex_sign == MKEX_SIGN && + !strncmp(mcam_kex->name, mkex_profile, MKEX_NAME_LEN)) { + /* Due to an errata (35786) in A0/B0 pass silicon, + * parse nibble enable configuration has to be + * identical for both Rx and Tx interfaces. + */ + if (!is_rvu_96xx_B0(rvu) || + mcam_kex->keyx_cfg[NIX_INTF_RX] == mcam_kex->keyx_cfg[NIX_INTF_TX]) + rvu->kpu.mkex = mcam_kex; + goto program_mkex; + } + + mcam_kex++; + prfl_sz -= sizeof(struct npc_mcam_kex); + } + dev_warn(dev, "Failed to load requested profile: %s\n", mkex_profile); + +program_mkex: + dev_info(rvu->dev, "Using %s mkex profile\n", rvu->kpu.mkex->name); + /* Program selected mkex profile */ + npc_program_mkex_profile(rvu, blkaddr, rvu->kpu.mkex); + if (mkex_prfl_addr) + iounmap(mkex_prfl_addr); +} + +static void npc_config_kpuaction(struct rvu *rvu, int blkaddr, + const struct npc_kpu_profile_action *kpuaction, + int kpu, int entry, bool pkind) +{ + struct npc_kpu_action0 action0 = {0}; + struct npc_kpu_action1 action1 = {0}; + u64 reg; + + action1.errlev = kpuaction->errlev; + action1.errcode = kpuaction->errcode; + action1.dp0_offset = kpuaction->dp0_offset; + action1.dp1_offset = kpuaction->dp1_offset; + action1.dp2_offset = kpuaction->dp2_offset; + + if (pkind) + reg = NPC_AF_PKINDX_ACTION1(entry); + else + reg = NPC_AF_KPUX_ENTRYX_ACTION1(kpu, entry); + + rvu_write64(rvu, blkaddr, reg, *(u64 *)&action1); + + action0.byp_count = kpuaction->bypass_count; + action0.capture_ena = kpuaction->cap_ena; + action0.parse_done = kpuaction->parse_done; + action0.next_state = kpuaction->next_state; + action0.capture_lid = kpuaction->lid; + action0.capture_ltype = kpuaction->ltype; + action0.capture_flags = kpuaction->flags; + action0.ptr_advance = kpuaction->ptr_advance; + action0.var_len_offset = kpuaction->offset; + action0.var_len_mask = kpuaction->mask; + action0.var_len_right = kpuaction->right; + action0.var_len_shift = kpuaction->shift; + + if (pkind) + reg = NPC_AF_PKINDX_ACTION0(entry); + else + reg = NPC_AF_KPUX_ENTRYX_ACTION0(kpu, entry); + + rvu_write64(rvu, blkaddr, reg, *(u64 *)&action0); +} + +static void npc_config_kpucam(struct rvu *rvu, int blkaddr, + const struct npc_kpu_profile_cam *kpucam, + int kpu, int entry) +{ + struct npc_kpu_cam cam0 = {0}; + struct npc_kpu_cam cam1 = {0}; + + cam1.state = kpucam->state & kpucam->state_mask; + cam1.dp0_data = kpucam->dp0 & kpucam->dp0_mask; + cam1.dp1_data = kpucam->dp1 & kpucam->dp1_mask; + cam1.dp2_data = kpucam->dp2 & kpucam->dp2_mask; + + cam0.state = ~kpucam->state & kpucam->state_mask; + cam0.dp0_data = ~kpucam->dp0 & kpucam->dp0_mask; + cam0.dp1_data = ~kpucam->dp1 & kpucam->dp1_mask; + cam0.dp2_data = ~kpucam->dp2 & kpucam->dp2_mask; + + rvu_write64(rvu, blkaddr, + NPC_AF_KPUX_ENTRYX_CAMX(kpu, entry, 0), *(u64 *)&cam0); + rvu_write64(rvu, blkaddr, + NPC_AF_KPUX_ENTRYX_CAMX(kpu, entry, 1), *(u64 *)&cam1); +} + +static inline u64 enable_mask(int count) +{ + return (((count) < 64) ? ~(BIT_ULL(count) - 1) : (0x00ULL)); +} + +static void npc_program_kpu_profile(struct rvu *rvu, int blkaddr, int kpu, + const struct npc_kpu_profile *profile) +{ + int entry, num_entries, max_entries; + u64 entry_mask; + + if (profile->cam_entries != profile->action_entries) { + dev_err(rvu->dev, + "KPU%d: CAM and action entries [%d != %d] not equal\n", + kpu, profile->cam_entries, profile->action_entries); + } + + max_entries = rvu->hw->npc_kpu_entries; + + /* Program CAM match entries for previous KPU extracted data */ + num_entries = min_t(int, profile->cam_entries, max_entries); + for (entry = 0; entry < num_entries; entry++) + npc_config_kpucam(rvu, blkaddr, + &profile->cam[entry], kpu, entry); + + /* Program this KPU's actions */ + num_entries = min_t(int, profile->action_entries, max_entries); + for (entry = 0; entry < num_entries; entry++) + npc_config_kpuaction(rvu, blkaddr, &profile->action[entry], + kpu, entry, false); + + /* Enable all programmed entries */ + num_entries = min_t(int, profile->action_entries, profile->cam_entries); + entry_mask = enable_mask(num_entries); + /* Disable first KPU_MAX_CST_ENT entries for built-in profile */ + if (!rvu->kpu.custom) + entry_mask |= GENMASK_ULL(KPU_MAX_CST_ENT - 1, 0); + rvu_write64(rvu, blkaddr, + NPC_AF_KPUX_ENTRY_DISX(kpu, 0), entry_mask); + if (num_entries > 64) { + rvu_write64(rvu, blkaddr, + NPC_AF_KPUX_ENTRY_DISX(kpu, 1), + enable_mask(num_entries - 64)); + } + + /* Enable this KPU */ + rvu_write64(rvu, blkaddr, NPC_AF_KPUX_CFG(kpu), 0x01); +} + +static int npc_prepare_default_kpu(struct npc_kpu_profile_adapter *profile) +{ + profile->custom = 0; + profile->name = def_pfl_name; + profile->version = NPC_KPU_PROFILE_VER; + profile->ikpu = ikpu_action_entries; + profile->pkinds = ARRAY_SIZE(ikpu_action_entries); + profile->kpu = npc_kpu_profiles; + profile->kpus = ARRAY_SIZE(npc_kpu_profiles); + profile->lt_def = &npc_lt_defaults; + profile->mkex = &npc_mkex_default; + profile->mkex_hash = &npc_mkex_hash_default; + + return 0; +} + +static int npc_apply_custom_kpu(struct rvu *rvu, + struct npc_kpu_profile_adapter *profile) +{ + size_t hdr_sz = sizeof(struct npc_kpu_profile_fwdata), offset = 0; + struct npc_kpu_profile_fwdata *fw = rvu->kpu_fwdata; + struct npc_kpu_profile_action *action; + struct npc_kpu_profile_cam *cam; + struct npc_kpu_fwdata *fw_kpu; + int entries; + u16 kpu, entry; + + if (rvu->kpu_fwdata_sz < hdr_sz) { + dev_warn(rvu->dev, "Invalid KPU profile size\n"); + return -EINVAL; + } + if (le64_to_cpu(fw->signature) != KPU_SIGN) { + dev_warn(rvu->dev, "Invalid KPU profile signature %llx\n", + fw->signature); + return -EINVAL; + } + /* Verify if the using known profile structure */ + if (NPC_KPU_VER_MAJ(profile->version) > + NPC_KPU_VER_MAJ(NPC_KPU_PROFILE_VER)) { + dev_warn(rvu->dev, "Not supported Major version: %d > %d\n", + NPC_KPU_VER_MAJ(profile->version), + NPC_KPU_VER_MAJ(NPC_KPU_PROFILE_VER)); + return -EINVAL; + } + /* Verify if profile is aligned with the required kernel changes */ + if (NPC_KPU_VER_MIN(profile->version) < + NPC_KPU_VER_MIN(NPC_KPU_PROFILE_VER)) { + dev_warn(rvu->dev, + "Invalid KPU profile version: %d.%d.%d expected version <= %d.%d.%d\n", + NPC_KPU_VER_MAJ(profile->version), + NPC_KPU_VER_MIN(profile->version), + NPC_KPU_VER_PATCH(profile->version), + NPC_KPU_VER_MAJ(NPC_KPU_PROFILE_VER), + NPC_KPU_VER_MIN(NPC_KPU_PROFILE_VER), + NPC_KPU_VER_PATCH(NPC_KPU_PROFILE_VER)); + return -EINVAL; + } + /* Verify if profile fits the HW */ + if (fw->kpus > profile->kpus) { + dev_warn(rvu->dev, "Not enough KPUs: %d > %ld\n", fw->kpus, + profile->kpus); + return -EINVAL; + } + + profile->custom = 1; + profile->name = fw->name; + profile->version = le64_to_cpu(fw->version); + profile->mkex = &fw->mkex; + profile->lt_def = &fw->lt_def; + + for (kpu = 0; kpu < fw->kpus; kpu++) { + fw_kpu = (struct npc_kpu_fwdata *)(fw->data + offset); + if (fw_kpu->entries > KPU_MAX_CST_ENT) + dev_warn(rvu->dev, + "Too many custom entries on KPU%d: %d > %d\n", + kpu, fw_kpu->entries, KPU_MAX_CST_ENT); + entries = min(fw_kpu->entries, KPU_MAX_CST_ENT); + cam = (struct npc_kpu_profile_cam *)fw_kpu->data; + offset += sizeof(*fw_kpu) + fw_kpu->entries * sizeof(*cam); + action = (struct npc_kpu_profile_action *)(fw->data + offset); + offset += fw_kpu->entries * sizeof(*action); + if (rvu->kpu_fwdata_sz < hdr_sz + offset) { + dev_warn(rvu->dev, + "Profile size mismatch on KPU%i parsing.\n", + kpu + 1); + return -EINVAL; + } + for (entry = 0; entry < entries; entry++) { + profile->kpu[kpu].cam[entry] = cam[entry]; + profile->kpu[kpu].action[entry] = action[entry]; + } + } + + return 0; +} + +static int npc_load_kpu_prfl_img(struct rvu *rvu, void __iomem *prfl_addr, + u64 prfl_sz, const char *kpu_profile) +{ + struct npc_kpu_profile_fwdata *kpu_data = NULL; + int rc = -EINVAL; + + kpu_data = (struct npc_kpu_profile_fwdata __force *)prfl_addr; + if (le64_to_cpu(kpu_data->signature) == KPU_SIGN && + !strncmp(kpu_data->name, kpu_profile, KPU_NAME_LEN)) { + dev_info(rvu->dev, "Loading KPU profile from firmware db: %s\n", + kpu_profile); + rvu->kpu_fwdata = kpu_data; + rvu->kpu_fwdata_sz = prfl_sz; + rvu->kpu_prfl_addr = prfl_addr; + rc = 0; + } + + return rc; +} + +static int npc_fwdb_detect_load_prfl_img(struct rvu *rvu, uint64_t prfl_sz, + const char *kpu_profile) +{ + struct npc_coalesced_kpu_prfl *img_data = NULL; + int i = 0, rc = -EINVAL; + void __iomem *kpu_prfl_addr; + u16 offset; + + img_data = (struct npc_coalesced_kpu_prfl __force *)rvu->kpu_prfl_addr; + if (le64_to_cpu(img_data->signature) == KPU_SIGN && + !strncmp(img_data->name, kpu_profile, KPU_NAME_LEN)) { + /* Loaded profile is a single KPU profile. */ + rc = npc_load_kpu_prfl_img(rvu, rvu->kpu_prfl_addr, + prfl_sz, kpu_profile); + goto done; + } + + /* Loaded profile is coalesced image, offset of first KPU profile.*/ + offset = offsetof(struct npc_coalesced_kpu_prfl, prfl_sz) + + (img_data->num_prfl * sizeof(uint16_t)); + /* Check if mapped image is coalesced image. */ + while (i < img_data->num_prfl) { + /* Profile image offsets are rounded up to next 8 multiple.*/ + offset = ALIGN_8B_CEIL(offset); + kpu_prfl_addr = (void __iomem *)((uintptr_t)rvu->kpu_prfl_addr + + offset); + rc = npc_load_kpu_prfl_img(rvu, kpu_prfl_addr, + img_data->prfl_sz[i], kpu_profile); + if (!rc) + break; + /* Calculating offset of profile image based on profile size.*/ + offset += img_data->prfl_sz[i]; + i++; + } +done: + return rc; +} + +static int npc_load_kpu_profile_fwdb(struct rvu *rvu, const char *kpu_profile) +{ + int ret = -EINVAL; + u64 prfl_sz; + + /* Setting up the mapping for NPC profile image */ + ret = npc_fwdb_prfl_img_map(rvu, &rvu->kpu_prfl_addr, &prfl_sz); + if (ret < 0) + goto done; + + /* Detect if profile is coalesced or single KPU profile and load */ + ret = npc_fwdb_detect_load_prfl_img(rvu, prfl_sz, kpu_profile); + if (ret == 0) + goto done; + + /* Cleaning up if KPU profile image from fwdata is not valid. */ + if (rvu->kpu_prfl_addr) { + iounmap(rvu->kpu_prfl_addr); + rvu->kpu_prfl_addr = NULL; + rvu->kpu_fwdata_sz = 0; + rvu->kpu_fwdata = NULL; + } + +done: + return ret; +} + +static void npc_load_kpu_profile(struct rvu *rvu) +{ + struct npc_kpu_profile_adapter *profile = &rvu->kpu; + const char *kpu_profile = rvu->kpu_pfl_name; + const struct firmware *fw = NULL; + bool retry_fwdb = false; + + /* If user not specified profile customization */ + if (!strncmp(kpu_profile, def_pfl_name, KPU_NAME_LEN)) + goto revert_to_default; + /* First prepare default KPU, then we'll customize top entries. */ + npc_prepare_default_kpu(profile); + + /* Order of preceedence for load loading NPC profile (high to low) + * Firmware binary in filesystem. + * Firmware database method. + * Default KPU profile. + */ + if (!request_firmware_direct(&fw, kpu_profile, rvu->dev)) { + dev_info(rvu->dev, "Loading KPU profile from firmware: %s\n", + kpu_profile); + rvu->kpu_fwdata = kzalloc(fw->size, GFP_KERNEL); + if (rvu->kpu_fwdata) { + memcpy(rvu->kpu_fwdata, fw->data, fw->size); + rvu->kpu_fwdata_sz = fw->size; + } + release_firmware(fw); + retry_fwdb = true; + goto program_kpu; + } + +load_image_fwdb: + /* Loading the KPU profile using firmware database */ + if (npc_load_kpu_profile_fwdb(rvu, kpu_profile)) + goto revert_to_default; + +program_kpu: + /* Apply profile customization if firmware was loaded. */ + if (!rvu->kpu_fwdata_sz || npc_apply_custom_kpu(rvu, profile)) { + /* If image from firmware filesystem fails to load or invalid + * retry with firmware database method. + */ + if (rvu->kpu_fwdata || rvu->kpu_fwdata_sz) { + /* Loading image from firmware database failed. */ + if (rvu->kpu_prfl_addr) { + iounmap(rvu->kpu_prfl_addr); + rvu->kpu_prfl_addr = NULL; + } else { + kfree(rvu->kpu_fwdata); + } + rvu->kpu_fwdata = NULL; + rvu->kpu_fwdata_sz = 0; + if (retry_fwdb) { + retry_fwdb = false; + goto load_image_fwdb; + } + } + + dev_warn(rvu->dev, + "Can't load KPU profile %s. Using default.\n", + kpu_profile); + kfree(rvu->kpu_fwdata); + rvu->kpu_fwdata = NULL; + goto revert_to_default; + } + + dev_info(rvu->dev, "Using custom profile '%s', version %d.%d.%d\n", + profile->name, NPC_KPU_VER_MAJ(profile->version), + NPC_KPU_VER_MIN(profile->version), + NPC_KPU_VER_PATCH(profile->version)); + + return; + +revert_to_default: + npc_prepare_default_kpu(profile); +} + +static void npc_parser_profile_init(struct rvu *rvu, int blkaddr) +{ + struct rvu_hwinfo *hw = rvu->hw; + int num_pkinds, num_kpus, idx; + + /* Disable all KPUs and their entries */ + for (idx = 0; idx < hw->npc_kpus; idx++) { + rvu_write64(rvu, blkaddr, + NPC_AF_KPUX_ENTRY_DISX(idx, 0), ~0ULL); + rvu_write64(rvu, blkaddr, + NPC_AF_KPUX_ENTRY_DISX(idx, 1), ~0ULL); + rvu_write64(rvu, blkaddr, NPC_AF_KPUX_CFG(idx), 0x00); + } + + /* Load and customize KPU profile. */ + npc_load_kpu_profile(rvu); + + /* First program IKPU profile i.e PKIND configs. + * Check HW max count to avoid configuring junk or + * writing to unsupported CSR addresses. + */ + num_pkinds = rvu->kpu.pkinds; + num_pkinds = min_t(int, hw->npc_pkinds, num_pkinds); + + for (idx = 0; idx < num_pkinds; idx++) + npc_config_kpuaction(rvu, blkaddr, &rvu->kpu.ikpu[idx], 0, idx, true); + + /* Program KPU CAM and Action profiles */ + num_kpus = rvu->kpu.kpus; + num_kpus = min_t(int, hw->npc_kpus, num_kpus); + + for (idx = 0; idx < num_kpus; idx++) + npc_program_kpu_profile(rvu, blkaddr, idx, &rvu->kpu.kpu[idx]); +} + +static int npc_mcam_rsrcs_init(struct rvu *rvu, int blkaddr) +{ + int nixlf_count = rvu_get_nixlf_count(rvu); + struct npc_mcam *mcam = &rvu->hw->mcam; + int rsvd, err; + u16 index; + int cntr; + u64 cfg; + + /* Actual number of MCAM entries vary by entry size */ + cfg = (rvu_read64(rvu, blkaddr, + NPC_AF_INTFX_KEX_CFG(0)) >> 32) & 0x07; + mcam->total_entries = (mcam->banks / BIT_ULL(cfg)) * mcam->banksize; + mcam->keysize = cfg; + + /* Number of banks combined per MCAM entry */ + if (cfg == NPC_MCAM_KEY_X4) + mcam->banks_per_entry = 4; + else if (cfg == NPC_MCAM_KEY_X2) + mcam->banks_per_entry = 2; + else + mcam->banks_per_entry = 1; + + /* Reserve one MCAM entry for each of the NIX LF to + * guarantee space to install default matching DMAC rule. + * Also reserve 2 MCAM entries for each PF for default + * channel based matching or 'bcast & promisc' matching to + * support BCAST and PROMISC modes of operation for PFs. + * PF0 is excluded. + */ + rsvd = (nixlf_count * RSVD_MCAM_ENTRIES_PER_NIXLF) + + ((rvu->hw->total_pfs - 1) * RSVD_MCAM_ENTRIES_PER_PF); + if (mcam->total_entries <= rsvd) { + dev_warn(rvu->dev, + "Insufficient NPC MCAM size %d for pkt I/O, exiting\n", + mcam->total_entries); + return -ENOMEM; + } + + mcam->bmap_entries = mcam->total_entries - rsvd; + mcam->nixlf_offset = mcam->bmap_entries; + mcam->pf_offset = mcam->nixlf_offset + nixlf_count; + + /* Allocate bitmaps for managing MCAM entries */ + mcam->bmap = devm_kcalloc(rvu->dev, BITS_TO_LONGS(mcam->bmap_entries), + sizeof(long), GFP_KERNEL); + if (!mcam->bmap) + return -ENOMEM; + + mcam->bmap_reverse = devm_kcalloc(rvu->dev, + BITS_TO_LONGS(mcam->bmap_entries), + sizeof(long), GFP_KERNEL); + if (!mcam->bmap_reverse) + return -ENOMEM; + + mcam->bmap_fcnt = mcam->bmap_entries; + + /* Alloc memory for saving entry to RVU PFFUNC allocation mapping */ + mcam->entry2pfvf_map = devm_kcalloc(rvu->dev, mcam->bmap_entries, + sizeof(u16), GFP_KERNEL); + if (!mcam->entry2pfvf_map) + return -ENOMEM; + + /* Reserve 1/8th of MCAM entries at the bottom for low priority + * allocations and another 1/8th at the top for high priority + * allocations. + */ + mcam->lprio_count = mcam->bmap_entries / 8; + if (mcam->lprio_count > BITS_PER_LONG) + mcam->lprio_count = round_down(mcam->lprio_count, + BITS_PER_LONG); + mcam->lprio_start = mcam->bmap_entries - mcam->lprio_count; + mcam->hprio_count = mcam->lprio_count; + mcam->hprio_end = mcam->hprio_count; + + /* Allocate bitmap for managing MCAM counters and memory + * for saving counter to RVU PFFUNC allocation mapping. + */ + err = rvu_alloc_bitmap(&mcam->counters); + if (err) + return err; + + mcam->cntr2pfvf_map = devm_kcalloc(rvu->dev, mcam->counters.max, + sizeof(u16), GFP_KERNEL); + if (!mcam->cntr2pfvf_map) + goto free_mem; + + /* Alloc memory for MCAM entry to counter mapping and for tracking + * counter's reference count. + */ + mcam->entry2cntr_map = devm_kcalloc(rvu->dev, mcam->bmap_entries, + sizeof(u16), GFP_KERNEL); + if (!mcam->entry2cntr_map) + goto free_mem; + + mcam->cntr_refcnt = devm_kcalloc(rvu->dev, mcam->counters.max, + sizeof(u16), GFP_KERNEL); + if (!mcam->cntr_refcnt) + goto free_mem; + + /* Alloc memory for saving target device of mcam rule */ + mcam->entry2target_pffunc = devm_kcalloc(rvu->dev, mcam->total_entries, + sizeof(u16), GFP_KERNEL); + if (!mcam->entry2target_pffunc) + goto free_mem; + + for (index = 0; index < mcam->bmap_entries; index++) { + mcam->entry2pfvf_map[index] = NPC_MCAM_INVALID_MAP; + mcam->entry2cntr_map[index] = NPC_MCAM_INVALID_MAP; + } + + for (cntr = 0; cntr < mcam->counters.max; cntr++) + mcam->cntr2pfvf_map[cntr] = NPC_MCAM_INVALID_MAP; + + mutex_init(&mcam->lock); + + return 0; + +free_mem: + kfree(mcam->counters.bmap); + return -ENOMEM; +} + +static void rvu_npc_hw_init(struct rvu *rvu, int blkaddr) +{ + struct npc_pkind *pkind = &rvu->hw->pkind; + struct npc_mcam *mcam = &rvu->hw->mcam; + struct rvu_hwinfo *hw = rvu->hw; + u64 npc_const, npc_const1; + u64 npc_const2 = 0; + + npc_const = rvu_read64(rvu, blkaddr, NPC_AF_CONST); + npc_const1 = rvu_read64(rvu, blkaddr, NPC_AF_CONST1); + if (npc_const1 & BIT_ULL(63)) + npc_const2 = rvu_read64(rvu, blkaddr, NPC_AF_CONST2); + + pkind->rsrc.max = NPC_UNRESERVED_PKIND_COUNT; + hw->npc_pkinds = (npc_const1 >> 12) & 0xFFULL; + hw->npc_kpu_entries = npc_const1 & 0xFFFULL; + hw->npc_kpus = (npc_const >> 8) & 0x1FULL; + hw->npc_intfs = npc_const & 0xFULL; + hw->npc_counters = (npc_const >> 48) & 0xFFFFULL; + + mcam->banks = (npc_const >> 44) & 0xFULL; + mcam->banksize = (npc_const >> 28) & 0xFFFFULL; + hw->npc_stat_ena = BIT_ULL(9); + /* Extended set */ + if (npc_const2) { + hw->npc_ext_set = true; + /* 96xx supports only match_stats and npc_counters + * reflected in NPC_AF_CONST reg. + * STAT_SEL and ENA are at [0:8] and 9 bit positions. + * 98xx has both match_stat and ext and npc_counter + * reflected in NPC_AF_CONST2 + * STAT_SEL_EXT added at [12:14] bit position. + * cn10k supports only ext and hence npc_counters in + * NPC_AF_CONST is 0 and npc_counters reflected in NPC_AF_CONST2. + * STAT_SEL bitpos incremented from [0:8] to [0:11] and ENA bit moved to 63 + */ + if (!hw->npc_counters) + hw->npc_stat_ena = BIT_ULL(63); + hw->npc_counters = (npc_const2 >> 16) & 0xFFFFULL; + mcam->banksize = npc_const2 & 0xFFFFULL; + } + + mcam->counters.max = hw->npc_counters; +} + +static void rvu_npc_setup_interfaces(struct rvu *rvu, int blkaddr) +{ + struct npc_mcam_kex *mkex = rvu->kpu.mkex; + struct npc_mcam *mcam = &rvu->hw->mcam; + struct rvu_hwinfo *hw = rvu->hw; + u64 nibble_ena, rx_kex, tx_kex; + u8 intf; + + /* Reserve last counter for MCAM RX miss action which is set to + * drop packet. This way we will know how many pkts didn't match + * any MCAM entry. + */ + mcam->counters.max--; + mcam->rx_miss_act_cntr = mcam->counters.max; + + rx_kex = mkex->keyx_cfg[NIX_INTF_RX]; + tx_kex = mkex->keyx_cfg[NIX_INTF_TX]; + nibble_ena = FIELD_GET(NPC_PARSE_NIBBLE, rx_kex); + + nibble_ena = rvu_npc_get_tx_nibble_cfg(rvu, nibble_ena); + if (nibble_ena) { + tx_kex &= ~NPC_PARSE_NIBBLE; + tx_kex |= FIELD_PREP(NPC_PARSE_NIBBLE, nibble_ena); + mkex->keyx_cfg[NIX_INTF_TX] = tx_kex; + } + + /* Configure RX interfaces */ + for (intf = 0; intf < hw->npc_intfs; intf++) { + if (is_npc_intf_tx(intf)) + continue; + + /* Set RX MCAM search key size. LA..LE (ltype only) + Channel */ + rvu_write64(rvu, blkaddr, NPC_AF_INTFX_KEX_CFG(intf), + rx_kex); + + /* If MCAM lookup doesn't result in a match, drop the received + * packet. And map this action to a counter to count dropped + * packets. + */ + rvu_write64(rvu, blkaddr, + NPC_AF_INTFX_MISS_ACT(intf), NIX_RX_ACTIONOP_DROP); + + /* NPC_AF_INTFX_MISS_STAT_ACT[14:12] - counter[11:9] + * NPC_AF_INTFX_MISS_STAT_ACT[8:0] - counter[8:0] + */ + rvu_write64(rvu, blkaddr, + NPC_AF_INTFX_MISS_STAT_ACT(intf), + ((mcam->rx_miss_act_cntr >> 9) << 12) | + hw->npc_stat_ena | mcam->rx_miss_act_cntr); + } + + /* Configure TX interfaces */ + for (intf = 0; intf < hw->npc_intfs; intf++) { + if (is_npc_intf_rx(intf)) + continue; + + /* Extract Ltypes LID_LA to LID_LE */ + rvu_write64(rvu, blkaddr, NPC_AF_INTFX_KEX_CFG(intf), + tx_kex); + + /* Set TX miss action to UCAST_DEFAULT i.e + * transmit the packet on NIX LF SQ's default channel. + */ + rvu_write64(rvu, blkaddr, + NPC_AF_INTFX_MISS_ACT(intf), + NIX_TX_ACTIONOP_UCAST_DEFAULT); + } +} + +int rvu_npc_init(struct rvu *rvu) +{ + struct npc_kpu_profile_adapter *kpu = &rvu->kpu; + struct npc_pkind *pkind = &rvu->hw->pkind; + struct npc_mcam *mcam = &rvu->hw->mcam; + int blkaddr, entry, bank, err; + + blkaddr = rvu_get_blkaddr(rvu, BLKTYPE_NPC, 0); + if (blkaddr < 0) { + dev_err(rvu->dev, "%s: NPC block not implemented\n", __func__); + return -ENODEV; + } + + rvu_npc_hw_init(rvu, blkaddr); + + /* First disable all MCAM entries, to stop traffic towards NIXLFs */ + for (bank = 0; bank < mcam->banks; bank++) { + for (entry = 0; entry < mcam->banksize; entry++) + rvu_write64(rvu, blkaddr, + NPC_AF_MCAMEX_BANKX_CFG(entry, bank), 0); + } + + err = rvu_alloc_bitmap(&pkind->rsrc); + if (err) + return err; + /* Reserve PKIND#0 for LBKs. Power reset value of LBK_CH_PKIND is '0', + * no need to configure PKIND for all LBKs separately. + */ + rvu_alloc_rsrc(&pkind->rsrc); + + /* Allocate mem for pkind to PF and channel mapping info */ + pkind->pfchan_map = devm_kcalloc(rvu->dev, pkind->rsrc.max, + sizeof(u32), GFP_KERNEL); + if (!pkind->pfchan_map) + return -ENOMEM; + + /* Configure KPU profile */ + npc_parser_profile_init(rvu, blkaddr); + + /* Config Outer L2, IPv4's NPC layer info */ + rvu_write64(rvu, blkaddr, NPC_AF_PCK_DEF_OL2, + (kpu->lt_def->pck_ol2.lid << 8) | (kpu->lt_def->pck_ol2.ltype_match << 4) | + kpu->lt_def->pck_ol2.ltype_mask); + rvu_write64(rvu, blkaddr, NPC_AF_PCK_DEF_OIP4, + (kpu->lt_def->pck_oip4.lid << 8) | (kpu->lt_def->pck_oip4.ltype_match << 4) | + kpu->lt_def->pck_oip4.ltype_mask); + + /* Config Inner IPV4 NPC layer info */ + rvu_write64(rvu, blkaddr, NPC_AF_PCK_DEF_IIP4, + (kpu->lt_def->pck_iip4.lid << 8) | (kpu->lt_def->pck_iip4.ltype_match << 4) | + kpu->lt_def->pck_iip4.ltype_mask); + + /* Enable below for Rx pkts. + * - Outer IPv4 header checksum validation. + * - Detect outer L2 broadcast address and set NPC_RESULT_S[L2B]. + * - Detect outer L2 multicast address and set NPC_RESULT_S[L2M]. + * - Inner IPv4 header checksum validation. + * - Set non zero checksum error code value + */ + rvu_write64(rvu, blkaddr, NPC_AF_PCK_CFG, + rvu_read64(rvu, blkaddr, NPC_AF_PCK_CFG) | + ((u64)NPC_EC_OIP4_CSUM << 32) | (NPC_EC_IIP4_CSUM << 24) | + BIT_ULL(7) | BIT_ULL(6) | BIT_ULL(2) | BIT_ULL(1)); + + rvu_npc_setup_interfaces(rvu, blkaddr); + + npc_config_secret_key(rvu, blkaddr); + /* Configure MKEX profile */ + npc_load_mkex_profile(rvu, blkaddr, rvu->mkex_pfl_name); + + err = npc_mcam_rsrcs_init(rvu, blkaddr); + if (err) + return err; + + err = npc_flow_steering_init(rvu, blkaddr); + if (err) { + dev_err(rvu->dev, + "Incorrect mkex profile loaded using default mkex\n"); + npc_load_mkex_profile(rvu, blkaddr, def_pfl_name); + } + + return 0; +} + +void rvu_npc_freemem(struct rvu *rvu) +{ + struct npc_pkind *pkind = &rvu->hw->pkind; + struct npc_mcam *mcam = &rvu->hw->mcam; + + kfree(pkind->rsrc.bmap); + kfree(mcam->counters.bmap); + if (rvu->kpu_prfl_addr) + iounmap(rvu->kpu_prfl_addr); + else + kfree(rvu->kpu_fwdata); + mutex_destroy(&mcam->lock); +} + +void rvu_npc_get_mcam_entry_alloc_info(struct rvu *rvu, u16 pcifunc, + int blkaddr, int *alloc_cnt, + int *enable_cnt) +{ + struct npc_mcam *mcam = &rvu->hw->mcam; + int entry; + + *alloc_cnt = 0; + *enable_cnt = 0; + + for (entry = 0; entry < mcam->bmap_entries; entry++) { + if (mcam->entry2pfvf_map[entry] == pcifunc) { + (*alloc_cnt)++; + if (is_mcam_entry_enabled(rvu, mcam, blkaddr, entry)) + (*enable_cnt)++; + } + } +} + +void rvu_npc_get_mcam_counter_alloc_info(struct rvu *rvu, u16 pcifunc, + int blkaddr, int *alloc_cnt, + int *enable_cnt) +{ + struct npc_mcam *mcam = &rvu->hw->mcam; + int cntr; + + *alloc_cnt = 0; + *enable_cnt = 0; + + for (cntr = 0; cntr < mcam->counters.max; cntr++) { + if (mcam->cntr2pfvf_map[cntr] == pcifunc) { + (*alloc_cnt)++; + if (mcam->cntr_refcnt[cntr]) + (*enable_cnt)++; + } + } +} + +static int npc_mcam_verify_entry(struct npc_mcam *mcam, + u16 pcifunc, int entry) +{ + /* verify AF installed entries */ + if (is_pffunc_af(pcifunc)) + return 0; + /* Verify if entry is valid and if it is indeed + * allocated to the requesting PFFUNC. + */ + if (entry >= mcam->bmap_entries) + return NPC_MCAM_INVALID_REQ; + + if (pcifunc != mcam->entry2pfvf_map[entry]) + return NPC_MCAM_PERM_DENIED; + + return 0; +} + +static int npc_mcam_verify_counter(struct npc_mcam *mcam, + u16 pcifunc, int cntr) +{ + /* Verify if counter is valid and if it is indeed + * allocated to the requesting PFFUNC. + */ + if (cntr >= mcam->counters.max) + return NPC_MCAM_INVALID_REQ; + + if (pcifunc != mcam->cntr2pfvf_map[cntr]) + return NPC_MCAM_PERM_DENIED; + + return 0; +} + +static void npc_map_mcam_entry_and_cntr(struct rvu *rvu, struct npc_mcam *mcam, + int blkaddr, u16 entry, u16 cntr) +{ + u16 index = entry & (mcam->banksize - 1); + u32 bank = npc_get_bank(mcam, entry); + struct rvu_hwinfo *hw = rvu->hw; + + /* Set mapping and increment counter's refcnt */ + mcam->entry2cntr_map[entry] = cntr; + mcam->cntr_refcnt[cntr]++; + /* Enable stats */ + rvu_write64(rvu, blkaddr, + NPC_AF_MCAMEX_BANKX_STAT_ACT(index, bank), + ((cntr >> 9) << 12) | hw->npc_stat_ena | cntr); +} + +static void npc_unmap_mcam_entry_and_cntr(struct rvu *rvu, + struct npc_mcam *mcam, + int blkaddr, u16 entry, u16 cntr) +{ + u16 index = entry & (mcam->banksize - 1); + u32 bank = npc_get_bank(mcam, entry); + + /* Remove mapping and reduce counter's refcnt */ + mcam->entry2cntr_map[entry] = NPC_MCAM_INVALID_MAP; + mcam->cntr_refcnt[cntr]--; + /* Disable stats */ + rvu_write64(rvu, blkaddr, + NPC_AF_MCAMEX_BANKX_STAT_ACT(index, bank), 0x00); +} + +/* Sets MCAM entry in bitmap as used. Update + * reverse bitmap too. Should be called with + * 'mcam->lock' held. + */ +static void npc_mcam_set_bit(struct npc_mcam *mcam, u16 index) +{ + u16 entry, rentry; + + entry = index; + rentry = mcam->bmap_entries - index - 1; + + __set_bit(entry, mcam->bmap); + __set_bit(rentry, mcam->bmap_reverse); + mcam->bmap_fcnt--; +} + +/* Sets MCAM entry in bitmap as free. Update + * reverse bitmap too. Should be called with + * 'mcam->lock' held. + */ +static void npc_mcam_clear_bit(struct npc_mcam *mcam, u16 index) +{ + u16 entry, rentry; + + entry = index; + rentry = mcam->bmap_entries - index - 1; + + __clear_bit(entry, mcam->bmap); + __clear_bit(rentry, mcam->bmap_reverse); + mcam->bmap_fcnt++; +} + +static void npc_mcam_free_all_entries(struct rvu *rvu, struct npc_mcam *mcam, + int blkaddr, u16 pcifunc) +{ + u16 index, cntr; + + /* Scan all MCAM entries and free the ones mapped to 'pcifunc' */ + for (index = 0; index < mcam->bmap_entries; index++) { + if (mcam->entry2pfvf_map[index] == pcifunc) { + mcam->entry2pfvf_map[index] = NPC_MCAM_INVALID_MAP; + /* Free the entry in bitmap */ + npc_mcam_clear_bit(mcam, index); + /* Disable the entry */ + npc_enable_mcam_entry(rvu, mcam, blkaddr, index, false); + + /* Update entry2counter mapping */ + cntr = mcam->entry2cntr_map[index]; + if (cntr != NPC_MCAM_INVALID_MAP) + npc_unmap_mcam_entry_and_cntr(rvu, mcam, + blkaddr, index, + cntr); + mcam->entry2target_pffunc[index] = 0x0; + } + } +} + +static void npc_mcam_free_all_counters(struct rvu *rvu, struct npc_mcam *mcam, + u16 pcifunc) +{ + u16 cntr; + + /* Scan all MCAM counters and free the ones mapped to 'pcifunc' */ + for (cntr = 0; cntr < mcam->counters.max; cntr++) { + if (mcam->cntr2pfvf_map[cntr] == pcifunc) { + mcam->cntr2pfvf_map[cntr] = NPC_MCAM_INVALID_MAP; + mcam->cntr_refcnt[cntr] = 0; + rvu_free_rsrc(&mcam->counters, cntr); + /* This API is expected to be called after freeing + * MCAM entries, which inturn will remove + * 'entry to counter' mapping. + * No need to do it again. + */ + } + } +} + +/* Find area of contiguous free entries of size 'nr'. + * If not found return max contiguous free entries available. + */ +static u16 npc_mcam_find_zero_area(unsigned long *map, u16 size, u16 start, + u16 nr, u16 *max_area) +{ + u16 max_area_start = 0; + u16 index, next, end; + + *max_area = 0; + +again: + index = find_next_zero_bit(map, size, start); + if (index >= size) + return max_area_start; + + end = ((index + nr) >= size) ? size : index + nr; + next = find_next_bit(map, end, index); + if (*max_area < (next - index)) { + *max_area = next - index; + max_area_start = index; + } + + if (next < end) { + start = next + 1; + goto again; + } + + return max_area_start; +} + +/* Find number of free MCAM entries available + * within range i.e in between 'start' and 'end'. + */ +static u16 npc_mcam_get_free_count(unsigned long *map, u16 start, u16 end) +{ + u16 index, next; + u16 fcnt = 0; + +again: + if (start >= end) + return fcnt; + + index = find_next_zero_bit(map, end, start); + if (index >= end) + return fcnt; + + next = find_next_bit(map, end, index); + if (next <= end) { + fcnt += next - index; + start = next + 1; + goto again; + } + + fcnt += end - index; + return fcnt; +} + +static void +npc_get_mcam_search_range_priority(struct npc_mcam *mcam, + struct npc_mcam_alloc_entry_req *req, + u16 *start, u16 *end, bool *reverse) +{ + u16 fcnt; + + if (req->priority == NPC_MCAM_HIGHER_PRIO) + goto hprio; + + /* For a low priority entry allocation + * - If reference entry is not in hprio zone then + * search range: ref_entry to end. + * - If reference entry is in hprio zone and if + * request can be accomodated in non-hprio zone then + * search range: 'start of middle zone' to 'end' + * - else search in reverse, so that less number of hprio + * zone entries are allocated. + */ + + *reverse = false; + *start = req->ref_entry + 1; + *end = mcam->bmap_entries; + + if (req->ref_entry >= mcam->hprio_end) + return; + + fcnt = npc_mcam_get_free_count(mcam->bmap, + mcam->hprio_end, mcam->bmap_entries); + if (fcnt > req->count) + *start = mcam->hprio_end; + else + *reverse = true; + return; + +hprio: + /* For a high priority entry allocation, search is always + * in reverse to preserve hprio zone entries. + * - If reference entry is not in lprio zone then + * search range: 0 to ref_entry. + * - If reference entry is in lprio zone and if + * request can be accomodated in middle zone then + * search range: 'hprio_end' to 'lprio_start' + */ + + *reverse = true; + *start = 0; + *end = req->ref_entry; + + if (req->ref_entry <= mcam->lprio_start) + return; + + fcnt = npc_mcam_get_free_count(mcam->bmap, + mcam->hprio_end, mcam->lprio_start); + if (fcnt < req->count) + return; + *start = mcam->hprio_end; + *end = mcam->lprio_start; +} + +static int npc_mcam_alloc_entries(struct npc_mcam *mcam, u16 pcifunc, + struct npc_mcam_alloc_entry_req *req, + struct npc_mcam_alloc_entry_rsp *rsp) +{ + u16 entry_list[NPC_MAX_NONCONTIG_ENTRIES]; + u16 fcnt, hp_fcnt, lp_fcnt; + u16 start, end, index; + int entry, next_start; + bool reverse = false; + unsigned long *bmap; + u16 max_contig; + + mutex_lock(&mcam->lock); + + /* Check if there are any free entries */ + if (!mcam->bmap_fcnt) { + mutex_unlock(&mcam->lock); + return NPC_MCAM_ALLOC_FAILED; + } + + /* MCAM entries are divided into high priority, middle and + * low priority zones. Idea is to not allocate top and lower + * most entries as much as possible, this is to increase + * probability of honouring priority allocation requests. + * + * Two bitmaps are used for mcam entry management, + * mcam->bmap for forward search i.e '0 to mcam->bmap_entries'. + * mcam->bmap_reverse for reverse search i.e 'mcam->bmap_entries to 0'. + * + * Reverse bitmap is used to allocate entries + * - when a higher priority entry is requested + * - when available free entries are less. + * Lower priority ones out of avaialble free entries are always + * chosen when 'high vs low' question arises. + */ + + /* Get the search range for priority allocation request */ + if (req->priority) { + npc_get_mcam_search_range_priority(mcam, req, + &start, &end, &reverse); + goto alloc; + } + + /* For a VF base MCAM match rule is set by its PF. And all the + * further MCAM rules installed by VF on its own are + * concatenated with the base rule set by its PF. Hence PF entries + * should be at lower priority compared to VF entries. Otherwise + * base rule is hit always and rules installed by VF will be of + * no use. Hence if the request is from PF and NOT a priority + * allocation request then allocate low priority entries. + */ + if (!(pcifunc & RVU_PFVF_FUNC_MASK)) + goto lprio_alloc; + + /* Find out the search range for non-priority allocation request + * + * Get MCAM free entry count in middle zone. + */ + lp_fcnt = npc_mcam_get_free_count(mcam->bmap, + mcam->lprio_start, + mcam->bmap_entries); + hp_fcnt = npc_mcam_get_free_count(mcam->bmap, 0, mcam->hprio_end); + fcnt = mcam->bmap_fcnt - lp_fcnt - hp_fcnt; + + /* Check if request can be accomodated in the middle zone */ + if (fcnt > req->count) { + start = mcam->hprio_end; + end = mcam->lprio_start; + } else if ((fcnt + (hp_fcnt / 2) + (lp_fcnt / 2)) > req->count) { + /* Expand search zone from half of hprio zone to + * half of lprio zone. + */ + start = mcam->hprio_end / 2; + end = mcam->bmap_entries - (mcam->lprio_count / 2); + reverse = true; + } else { + /* Not enough free entries, search all entries in reverse, + * so that low priority ones will get used up. + */ +lprio_alloc: + reverse = true; + start = 0; + end = mcam->bmap_entries; + } + +alloc: + if (reverse) { + bmap = mcam->bmap_reverse; + start = mcam->bmap_entries - start; + end = mcam->bmap_entries - end; + swap(start, end); + } else { + bmap = mcam->bmap; + } + + if (req->contig) { + /* Allocate requested number of contiguous entries, if + * unsuccessful find max contiguous entries available. + */ + index = npc_mcam_find_zero_area(bmap, end, start, + req->count, &max_contig); + rsp->count = max_contig; + if (reverse) + rsp->entry = mcam->bmap_entries - index - max_contig; + else + rsp->entry = index; + } else { + /* Allocate requested number of non-contiguous entries, + * if unsuccessful allocate as many as possible. + */ + rsp->count = 0; + next_start = start; + for (entry = 0; entry < req->count; entry++) { + index = find_next_zero_bit(bmap, end, next_start); + if (index >= end) + break; + + next_start = start + (index - start) + 1; + + /* Save the entry's index */ + if (reverse) + index = mcam->bmap_entries - index - 1; + entry_list[entry] = index; + rsp->count++; + } + } + + /* If allocating requested no of entries is unsucessful, + * expand the search range to full bitmap length and retry. + */ + if (!req->priority && (rsp->count < req->count) && + ((end - start) != mcam->bmap_entries)) { + reverse = true; + start = 0; + end = mcam->bmap_entries; + goto alloc; + } + + /* For priority entry allocation requests, if allocation is + * failed then expand search to max possible range and retry. + */ + if (req->priority && rsp->count < req->count) { + if (req->priority == NPC_MCAM_LOWER_PRIO && + (start != (req->ref_entry + 1))) { + start = req->ref_entry + 1; + end = mcam->bmap_entries; + reverse = false; + goto alloc; + } else if ((req->priority == NPC_MCAM_HIGHER_PRIO) && + ((end - start) != req->ref_entry)) { + start = 0; + end = req->ref_entry; + reverse = true; + goto alloc; + } + } + + /* Copy MCAM entry indices into mbox response entry_list. + * Requester always expects indices in ascending order, so + * reverse the list if reverse bitmap is used for allocation. + */ + if (!req->contig && rsp->count) { + index = 0; + for (entry = rsp->count - 1; entry >= 0; entry--) { + if (reverse) + rsp->entry_list[index++] = entry_list[entry]; + else + rsp->entry_list[entry] = entry_list[entry]; + } + } + + /* Mark the allocated entries as used and set nixlf mapping */ + for (entry = 0; entry < rsp->count; entry++) { + index = req->contig ? + (rsp->entry + entry) : rsp->entry_list[entry]; + npc_mcam_set_bit(mcam, index); + mcam->entry2pfvf_map[index] = pcifunc; + mcam->entry2cntr_map[index] = NPC_MCAM_INVALID_MAP; + } + + /* Update available free count in mbox response */ + rsp->free_count = mcam->bmap_fcnt; + + mutex_unlock(&mcam->lock); + return 0; +} + +/* Marks bitmaps to reserved the mcam slot */ +void npc_mcam_rsrcs_reserve(struct rvu *rvu, int blkaddr, int entry_idx) +{ + struct npc_mcam *mcam = &rvu->hw->mcam; + + npc_mcam_set_bit(mcam, entry_idx); +} + +int rvu_mbox_handler_npc_mcam_alloc_entry(struct rvu *rvu, + struct npc_mcam_alloc_entry_req *req, + struct npc_mcam_alloc_entry_rsp *rsp) +{ + struct npc_mcam *mcam = &rvu->hw->mcam; + u16 pcifunc = req->hdr.pcifunc; + int blkaddr; + + blkaddr = rvu_get_blkaddr(rvu, BLKTYPE_NPC, 0); + if (blkaddr < 0) + return NPC_MCAM_INVALID_REQ; + + rsp->entry = NPC_MCAM_ENTRY_INVALID; + rsp->free_count = 0; + + /* Check if ref_entry is within range */ + if (req->priority && req->ref_entry >= mcam->bmap_entries) { + dev_err(rvu->dev, "%s: reference entry %d is out of range\n", + __func__, req->ref_entry); + return NPC_MCAM_INVALID_REQ; + } + + /* ref_entry can't be '0' if requested priority is high. + * Can't be last entry if requested priority is low. + */ + if ((!req->ref_entry && req->priority == NPC_MCAM_HIGHER_PRIO) || + ((req->ref_entry == (mcam->bmap_entries - 1)) && + req->priority == NPC_MCAM_LOWER_PRIO)) + return NPC_MCAM_INVALID_REQ; + + /* Since list of allocated indices needs to be sent to requester, + * max number of non-contiguous entries per mbox msg is limited. + */ + if (!req->contig && req->count > NPC_MAX_NONCONTIG_ENTRIES) { + dev_err(rvu->dev, + "%s: %d Non-contiguous MCAM entries requested is more than max (%d) allowed\n", + __func__, req->count, NPC_MAX_NONCONTIG_ENTRIES); + return NPC_MCAM_INVALID_REQ; + } + + /* Alloc request from PFFUNC with no NIXLF attached should be denied */ + if (!is_pffunc_af(pcifunc) && !is_nixlf_attached(rvu, pcifunc)) + return NPC_MCAM_ALLOC_DENIED; + + return npc_mcam_alloc_entries(mcam, pcifunc, req, rsp); +} + +int rvu_mbox_handler_npc_mcam_free_entry(struct rvu *rvu, + struct npc_mcam_free_entry_req *req, + struct msg_rsp *rsp) +{ + struct npc_mcam *mcam = &rvu->hw->mcam; + u16 pcifunc = req->hdr.pcifunc; + int blkaddr, rc = 0; + u16 cntr; + + blkaddr = rvu_get_blkaddr(rvu, BLKTYPE_NPC, 0); + if (blkaddr < 0) + return NPC_MCAM_INVALID_REQ; + + /* Free request from PFFUNC with no NIXLF attached, ignore */ + if (!is_pffunc_af(pcifunc) && !is_nixlf_attached(rvu, pcifunc)) + return NPC_MCAM_INVALID_REQ; + + mutex_lock(&mcam->lock); + + if (req->all) + goto free_all; + + rc = npc_mcam_verify_entry(mcam, pcifunc, req->entry); + if (rc) + goto exit; + + mcam->entry2pfvf_map[req->entry] = NPC_MCAM_INVALID_MAP; + mcam->entry2target_pffunc[req->entry] = 0x0; + npc_mcam_clear_bit(mcam, req->entry); + npc_enable_mcam_entry(rvu, mcam, blkaddr, req->entry, false); + + /* Update entry2counter mapping */ + cntr = mcam->entry2cntr_map[req->entry]; + if (cntr != NPC_MCAM_INVALID_MAP) + npc_unmap_mcam_entry_and_cntr(rvu, mcam, blkaddr, + req->entry, cntr); + + goto exit; + +free_all: + /* Free up all entries allocated to requesting PFFUNC */ + npc_mcam_free_all_entries(rvu, mcam, blkaddr, pcifunc); +exit: + mutex_unlock(&mcam->lock); + return rc; +} + +int rvu_mbox_handler_npc_mcam_read_entry(struct rvu *rvu, + struct npc_mcam_read_entry_req *req, + struct npc_mcam_read_entry_rsp *rsp) +{ + struct npc_mcam *mcam = &rvu->hw->mcam; + u16 pcifunc = req->hdr.pcifunc; + int blkaddr, rc; + + blkaddr = rvu_get_blkaddr(rvu, BLKTYPE_NPC, 0); + if (blkaddr < 0) + return NPC_MCAM_INVALID_REQ; + + mutex_lock(&mcam->lock); + rc = npc_mcam_verify_entry(mcam, pcifunc, req->entry); + if (!rc) { + npc_read_mcam_entry(rvu, mcam, blkaddr, req->entry, + &rsp->entry_data, + &rsp->intf, &rsp->enable); + } + + mutex_unlock(&mcam->lock); + return rc; +} + +int rvu_mbox_handler_npc_mcam_write_entry(struct rvu *rvu, + struct npc_mcam_write_entry_req *req, + struct msg_rsp *rsp) +{ + struct rvu_pfvf *pfvf = rvu_get_pfvf(rvu, req->hdr.pcifunc); + struct npc_mcam *mcam = &rvu->hw->mcam; + u16 pcifunc = req->hdr.pcifunc; + int blkaddr, rc; + u8 nix_intf; + + blkaddr = rvu_get_blkaddr(rvu, BLKTYPE_NPC, 0); + if (blkaddr < 0) + return NPC_MCAM_INVALID_REQ; + + mutex_lock(&mcam->lock); + rc = npc_mcam_verify_entry(mcam, pcifunc, req->entry); + if (rc) + goto exit; + + if (req->set_cntr && + npc_mcam_verify_counter(mcam, pcifunc, req->cntr)) { + rc = NPC_MCAM_INVALID_REQ; + goto exit; + } + + if (!is_npc_interface_valid(rvu, req->intf)) { + rc = NPC_MCAM_INVALID_REQ; + goto exit; + } + + if (is_npc_intf_tx(req->intf)) + nix_intf = pfvf->nix_tx_intf; + else + nix_intf = pfvf->nix_rx_intf; + + if (!is_pffunc_af(pcifunc) && + npc_mcam_verify_pf_func(rvu, &req->entry_data, req->intf, pcifunc)) { + rc = NPC_MCAM_INVALID_REQ; + goto exit; + } + + /* For AF installed rules, the nix_intf should be set to target NIX */ + if (is_pffunc_af(req->hdr.pcifunc)) + nix_intf = req->intf; + + npc_config_mcam_entry(rvu, mcam, blkaddr, req->entry, nix_intf, + &req->entry_data, req->enable_entry); + + if (req->set_cntr) + npc_map_mcam_entry_and_cntr(rvu, mcam, blkaddr, + req->entry, req->cntr); + + rc = 0; +exit: + mutex_unlock(&mcam->lock); + return rc; +} + +int rvu_mbox_handler_npc_mcam_ena_entry(struct rvu *rvu, + struct npc_mcam_ena_dis_entry_req *req, + struct msg_rsp *rsp) +{ + struct npc_mcam *mcam = &rvu->hw->mcam; + u16 pcifunc = req->hdr.pcifunc; + int blkaddr, rc; + + blkaddr = rvu_get_blkaddr(rvu, BLKTYPE_NPC, 0); + if (blkaddr < 0) + return NPC_MCAM_INVALID_REQ; + + mutex_lock(&mcam->lock); + rc = npc_mcam_verify_entry(mcam, pcifunc, req->entry); + mutex_unlock(&mcam->lock); + if (rc) + return rc; + + npc_enable_mcam_entry(rvu, mcam, blkaddr, req->entry, true); + + return 0; +} + +int rvu_mbox_handler_npc_mcam_dis_entry(struct rvu *rvu, + struct npc_mcam_ena_dis_entry_req *req, + struct msg_rsp *rsp) +{ + struct npc_mcam *mcam = &rvu->hw->mcam; + u16 pcifunc = req->hdr.pcifunc; + int blkaddr, rc; + + blkaddr = rvu_get_blkaddr(rvu, BLKTYPE_NPC, 0); + if (blkaddr < 0) + return NPC_MCAM_INVALID_REQ; + + mutex_lock(&mcam->lock); + rc = npc_mcam_verify_entry(mcam, pcifunc, req->entry); + mutex_unlock(&mcam->lock); + if (rc) + return rc; + + npc_enable_mcam_entry(rvu, mcam, blkaddr, req->entry, false); + + return 0; +} + +int rvu_mbox_handler_npc_mcam_shift_entry(struct rvu *rvu, + struct npc_mcam_shift_entry_req *req, + struct npc_mcam_shift_entry_rsp *rsp) +{ + struct npc_mcam *mcam = &rvu->hw->mcam; + u16 pcifunc = req->hdr.pcifunc; + u16 old_entry, new_entry; + int blkaddr, rc = 0; + u16 index, cntr; + + blkaddr = rvu_get_blkaddr(rvu, BLKTYPE_NPC, 0); + if (blkaddr < 0) + return NPC_MCAM_INVALID_REQ; + + if (req->shift_count > NPC_MCAM_MAX_SHIFTS) + return NPC_MCAM_INVALID_REQ; + + mutex_lock(&mcam->lock); + for (index = 0; index < req->shift_count; index++) { + old_entry = req->curr_entry[index]; + new_entry = req->new_entry[index]; + + /* Check if both old and new entries are valid and + * does belong to this PFFUNC or not. + */ + rc = npc_mcam_verify_entry(mcam, pcifunc, old_entry); + if (rc) + break; + + rc = npc_mcam_verify_entry(mcam, pcifunc, new_entry); + if (rc) + break; + + /* new_entry should not have a counter mapped */ + if (mcam->entry2cntr_map[new_entry] != NPC_MCAM_INVALID_MAP) { + rc = NPC_MCAM_PERM_DENIED; + break; + } + + /* Disable the new_entry */ + npc_enable_mcam_entry(rvu, mcam, blkaddr, new_entry, false); + + /* Copy rule from old entry to new entry */ + npc_copy_mcam_entry(rvu, mcam, blkaddr, old_entry, new_entry); + + /* Copy counter mapping, if any */ + cntr = mcam->entry2cntr_map[old_entry]; + if (cntr != NPC_MCAM_INVALID_MAP) { + npc_unmap_mcam_entry_and_cntr(rvu, mcam, blkaddr, + old_entry, cntr); + npc_map_mcam_entry_and_cntr(rvu, mcam, blkaddr, + new_entry, cntr); + } + + /* Enable new_entry and disable old_entry */ + npc_enable_mcam_entry(rvu, mcam, blkaddr, new_entry, true); + npc_enable_mcam_entry(rvu, mcam, blkaddr, old_entry, false); + } + + /* If shift has failed then report the failed index */ + if (index != req->shift_count) { + rc = NPC_MCAM_PERM_DENIED; + rsp->failed_entry_idx = index; + } + + mutex_unlock(&mcam->lock); + return rc; +} + +int rvu_mbox_handler_npc_mcam_alloc_counter(struct rvu *rvu, + struct npc_mcam_alloc_counter_req *req, + struct npc_mcam_alloc_counter_rsp *rsp) +{ + struct npc_mcam *mcam = &rvu->hw->mcam; + u16 pcifunc = req->hdr.pcifunc; + u16 max_contig, cntr; + int blkaddr, index; + + blkaddr = rvu_get_blkaddr(rvu, BLKTYPE_NPC, 0); + if (blkaddr < 0) + return NPC_MCAM_INVALID_REQ; + + /* If the request is from a PFFUNC with no NIXLF attached, ignore */ + if (!is_pffunc_af(pcifunc) && !is_nixlf_attached(rvu, pcifunc)) + return NPC_MCAM_INVALID_REQ; + + /* Since list of allocated counter IDs needs to be sent to requester, + * max number of non-contiguous counters per mbox msg is limited. + */ + if (!req->contig && req->count > NPC_MAX_NONCONTIG_COUNTERS) + return NPC_MCAM_INVALID_REQ; + + mutex_lock(&mcam->lock); + + /* Check if unused counters are available or not */ + if (!rvu_rsrc_free_count(&mcam->counters)) { + mutex_unlock(&mcam->lock); + return NPC_MCAM_ALLOC_FAILED; + } + + rsp->count = 0; + + if (req->contig) { + /* Allocate requested number of contiguous counters, if + * unsuccessful find max contiguous entries available. + */ + index = npc_mcam_find_zero_area(mcam->counters.bmap, + mcam->counters.max, 0, + req->count, &max_contig); + rsp->count = max_contig; + rsp->cntr = index; + for (cntr = index; cntr < (index + max_contig); cntr++) { + __set_bit(cntr, mcam->counters.bmap); + mcam->cntr2pfvf_map[cntr] = pcifunc; + } + } else { + /* Allocate requested number of non-contiguous counters, + * if unsuccessful allocate as many as possible. + */ + for (cntr = 0; cntr < req->count; cntr++) { + index = rvu_alloc_rsrc(&mcam->counters); + if (index < 0) + break; + rsp->cntr_list[cntr] = index; + rsp->count++; + mcam->cntr2pfvf_map[index] = pcifunc; + } + } + + mutex_unlock(&mcam->lock); + return 0; +} + +int rvu_mbox_handler_npc_mcam_free_counter(struct rvu *rvu, + struct npc_mcam_oper_counter_req *req, struct msg_rsp *rsp) +{ + struct npc_mcam *mcam = &rvu->hw->mcam; + u16 index, entry = 0; + int blkaddr, err; + + blkaddr = rvu_get_blkaddr(rvu, BLKTYPE_NPC, 0); + if (blkaddr < 0) + return NPC_MCAM_INVALID_REQ; + + mutex_lock(&mcam->lock); + err = npc_mcam_verify_counter(mcam, req->hdr.pcifunc, req->cntr); + if (err) { + mutex_unlock(&mcam->lock); + return err; + } + + /* Mark counter as free/unused */ + mcam->cntr2pfvf_map[req->cntr] = NPC_MCAM_INVALID_MAP; + rvu_free_rsrc(&mcam->counters, req->cntr); + + /* Disable all MCAM entry's stats which are using this counter */ + while (entry < mcam->bmap_entries) { + if (!mcam->cntr_refcnt[req->cntr]) + break; + + index = find_next_bit(mcam->bmap, mcam->bmap_entries, entry); + if (index >= mcam->bmap_entries) + break; + entry = index + 1; + if (mcam->entry2cntr_map[index] != req->cntr) + continue; + + npc_unmap_mcam_entry_and_cntr(rvu, mcam, blkaddr, + index, req->cntr); + } + + mutex_unlock(&mcam->lock); + return 0; +} + +int rvu_mbox_handler_npc_mcam_unmap_counter(struct rvu *rvu, + struct npc_mcam_unmap_counter_req *req, struct msg_rsp *rsp) +{ + struct npc_mcam *mcam = &rvu->hw->mcam; + u16 index, entry = 0; + int blkaddr, rc; + + blkaddr = rvu_get_blkaddr(rvu, BLKTYPE_NPC, 0); + if (blkaddr < 0) + return NPC_MCAM_INVALID_REQ; + + mutex_lock(&mcam->lock); + rc = npc_mcam_verify_counter(mcam, req->hdr.pcifunc, req->cntr); + if (rc) + goto exit; + + /* Unmap the MCAM entry and counter */ + if (!req->all) { + rc = npc_mcam_verify_entry(mcam, req->hdr.pcifunc, req->entry); + if (rc) + goto exit; + npc_unmap_mcam_entry_and_cntr(rvu, mcam, blkaddr, + req->entry, req->cntr); + goto exit; + } + + /* Disable all MCAM entry's stats which are using this counter */ + while (entry < mcam->bmap_entries) { + if (!mcam->cntr_refcnt[req->cntr]) + break; + + index = find_next_bit(mcam->bmap, mcam->bmap_entries, entry); + if (index >= mcam->bmap_entries) + break; + entry = index + 1; + + if (mcam->entry2cntr_map[index] != req->cntr) + continue; + + npc_unmap_mcam_entry_and_cntr(rvu, mcam, blkaddr, + index, req->cntr); + } +exit: + mutex_unlock(&mcam->lock); + return rc; +} + +int rvu_mbox_handler_npc_mcam_clear_counter(struct rvu *rvu, + struct npc_mcam_oper_counter_req *req, struct msg_rsp *rsp) +{ + struct npc_mcam *mcam = &rvu->hw->mcam; + int blkaddr, err; + + blkaddr = rvu_get_blkaddr(rvu, BLKTYPE_NPC, 0); + if (blkaddr < 0) + return NPC_MCAM_INVALID_REQ; + + mutex_lock(&mcam->lock); + err = npc_mcam_verify_counter(mcam, req->hdr.pcifunc, req->cntr); + mutex_unlock(&mcam->lock); + if (err) + return err; + + rvu_write64(rvu, blkaddr, NPC_AF_MATCH_STATX(req->cntr), 0x00); + + return 0; +} + +int rvu_mbox_handler_npc_mcam_counter_stats(struct rvu *rvu, + struct npc_mcam_oper_counter_req *req, + struct npc_mcam_oper_counter_rsp *rsp) +{ + struct npc_mcam *mcam = &rvu->hw->mcam; + int blkaddr, err; + + blkaddr = rvu_get_blkaddr(rvu, BLKTYPE_NPC, 0); + if (blkaddr < 0) + return NPC_MCAM_INVALID_REQ; + + mutex_lock(&mcam->lock); + err = npc_mcam_verify_counter(mcam, req->hdr.pcifunc, req->cntr); + mutex_unlock(&mcam->lock); + if (err) + return err; + + rsp->stat = rvu_read64(rvu, blkaddr, NPC_AF_MATCH_STATX(req->cntr)); + rsp->stat &= BIT_ULL(48) - 1; + + return 0; +} + +int rvu_mbox_handler_npc_mcam_alloc_and_write_entry(struct rvu *rvu, + struct npc_mcam_alloc_and_write_entry_req *req, + struct npc_mcam_alloc_and_write_entry_rsp *rsp) +{ + struct rvu_pfvf *pfvf = rvu_get_pfvf(rvu, req->hdr.pcifunc); + struct npc_mcam_alloc_counter_req cntr_req; + struct npc_mcam_alloc_counter_rsp cntr_rsp; + struct npc_mcam_alloc_entry_req entry_req; + struct npc_mcam_alloc_entry_rsp entry_rsp; + struct npc_mcam *mcam = &rvu->hw->mcam; + u16 entry = NPC_MCAM_ENTRY_INVALID; + u16 cntr = NPC_MCAM_ENTRY_INVALID; + int blkaddr, rc; + u8 nix_intf; + + blkaddr = rvu_get_blkaddr(rvu, BLKTYPE_NPC, 0); + if (blkaddr < 0) + return NPC_MCAM_INVALID_REQ; + + if (!is_npc_interface_valid(rvu, req->intf)) + return NPC_MCAM_INVALID_REQ; + + if (npc_mcam_verify_pf_func(rvu, &req->entry_data, req->intf, + req->hdr.pcifunc)) + return NPC_MCAM_INVALID_REQ; + + /* Try to allocate a MCAM entry */ + entry_req.hdr.pcifunc = req->hdr.pcifunc; + entry_req.contig = true; + entry_req.priority = req->priority; + entry_req.ref_entry = req->ref_entry; + entry_req.count = 1; + + rc = rvu_mbox_handler_npc_mcam_alloc_entry(rvu, + &entry_req, &entry_rsp); + if (rc) + return rc; + + if (!entry_rsp.count) + return NPC_MCAM_ALLOC_FAILED; + + entry = entry_rsp.entry; + + if (!req->alloc_cntr) + goto write_entry; + + /* Now allocate counter */ + cntr_req.hdr.pcifunc = req->hdr.pcifunc; + cntr_req.contig = true; + cntr_req.count = 1; + + rc = rvu_mbox_handler_npc_mcam_alloc_counter(rvu, &cntr_req, &cntr_rsp); + if (rc) { + /* Free allocated MCAM entry */ + mutex_lock(&mcam->lock); + mcam->entry2pfvf_map[entry] = NPC_MCAM_INVALID_MAP; + npc_mcam_clear_bit(mcam, entry); + mutex_unlock(&mcam->lock); + return rc; + } + + cntr = cntr_rsp.cntr; + +write_entry: + mutex_lock(&mcam->lock); + + if (is_npc_intf_tx(req->intf)) + nix_intf = pfvf->nix_tx_intf; + else + nix_intf = pfvf->nix_rx_intf; + + npc_config_mcam_entry(rvu, mcam, blkaddr, entry, nix_intf, + &req->entry_data, req->enable_entry); + + if (req->alloc_cntr) + npc_map_mcam_entry_and_cntr(rvu, mcam, blkaddr, entry, cntr); + mutex_unlock(&mcam->lock); + + rsp->entry = entry; + rsp->cntr = cntr; + + return 0; +} + +#define GET_KEX_CFG(intf) \ + rvu_read64(rvu, BLKADDR_NPC, NPC_AF_INTFX_KEX_CFG(intf)) + +#define GET_KEX_FLAGS(ld) \ + rvu_read64(rvu, BLKADDR_NPC, NPC_AF_KEX_LDATAX_FLAGS_CFG(ld)) + +#define GET_KEX_LD(intf, lid, lt, ld) \ + rvu_read64(rvu, BLKADDR_NPC, \ + NPC_AF_INTFX_LIDX_LTX_LDX_CFG(intf, lid, lt, ld)) + +#define GET_KEX_LDFLAGS(intf, ld, fl) \ + rvu_read64(rvu, BLKADDR_NPC, \ + NPC_AF_INTFX_LDATAX_FLAGSX_CFG(intf, ld, fl)) + +int rvu_mbox_handler_npc_get_kex_cfg(struct rvu *rvu, struct msg_req *req, + struct npc_get_kex_cfg_rsp *rsp) +{ + int lid, lt, ld, fl; + + rsp->rx_keyx_cfg = GET_KEX_CFG(NIX_INTF_RX); + rsp->tx_keyx_cfg = GET_KEX_CFG(NIX_INTF_TX); + for (lid = 0; lid < NPC_MAX_LID; lid++) { + for (lt = 0; lt < NPC_MAX_LT; lt++) { + for (ld = 0; ld < NPC_MAX_LD; ld++) { + rsp->intf_lid_lt_ld[NIX_INTF_RX][lid][lt][ld] = + GET_KEX_LD(NIX_INTF_RX, lid, lt, ld); + rsp->intf_lid_lt_ld[NIX_INTF_TX][lid][lt][ld] = + GET_KEX_LD(NIX_INTF_TX, lid, lt, ld); + } + } + } + for (ld = 0; ld < NPC_MAX_LD; ld++) + rsp->kex_ld_flags[ld] = GET_KEX_FLAGS(ld); + + for (ld = 0; ld < NPC_MAX_LD; ld++) { + for (fl = 0; fl < NPC_MAX_LFL; fl++) { + rsp->intf_ld_flags[NIX_INTF_RX][ld][fl] = + GET_KEX_LDFLAGS(NIX_INTF_RX, ld, fl); + rsp->intf_ld_flags[NIX_INTF_TX][ld][fl] = + GET_KEX_LDFLAGS(NIX_INTF_TX, ld, fl); + } + } + memcpy(rsp->mkex_pfl_name, rvu->mkex_pfl_name, MKEX_NAME_LEN); + return 0; +} + +static int +npc_set_var_len_offset_pkind(struct rvu *rvu, u16 pcifunc, u64 pkind, + u8 var_len_off, u8 var_len_off_mask, u8 shift_dir) +{ + struct npc_kpu_action0 *act0; + u8 shift_count = 0; + int blkaddr; + u64 val; + + if (!var_len_off_mask) + return -EINVAL; + + if (var_len_off_mask != 0xff) { + if (shift_dir) + shift_count = __ffs(var_len_off_mask); + else + shift_count = (8 - __fls(var_len_off_mask)); + } + blkaddr = rvu_get_blkaddr(rvu, BLKTYPE_NPC, pcifunc); + if (blkaddr < 0) { + dev_err(rvu->dev, "%s: NPC block not implemented\n", __func__); + return -EINVAL; + } + val = rvu_read64(rvu, blkaddr, NPC_AF_PKINDX_ACTION0(pkind)); + act0 = (struct npc_kpu_action0 *)&val; + act0->var_len_shift = shift_count; + act0->var_len_right = shift_dir; + act0->var_len_mask = var_len_off_mask; + act0->var_len_offset = var_len_off; + rvu_write64(rvu, blkaddr, NPC_AF_PKINDX_ACTION0(pkind), val); + return 0; +} + +int rvu_npc_set_parse_mode(struct rvu *rvu, u16 pcifunc, u64 mode, u8 dir, + u64 pkind, u8 var_len_off, u8 var_len_off_mask, + u8 shift_dir) + +{ + struct rvu_pfvf *pfvf = rvu_get_pfvf(rvu, pcifunc); + int blkaddr, nixlf, rc, intf_mode; + int pf = rvu_get_pf(pcifunc); + u64 rxpkind, txpkind; + u8 cgx_id, lmac_id; + + /* use default pkind to disable edsa/higig */ + rxpkind = rvu_npc_get_pkind(rvu, pf); + txpkind = NPC_TX_DEF_PKIND; + intf_mode = NPC_INTF_MODE_DEF; + + if (mode & OTX2_PRIV_FLAGS_CUSTOM) { + if (pkind == NPC_RX_CUSTOM_PRE_L2_PKIND) { + rc = npc_set_var_len_offset_pkind(rvu, pcifunc, pkind, + var_len_off, + var_len_off_mask, + shift_dir); + if (rc) + return rc; + } + rxpkind = pkind; + txpkind = pkind; + } + + if (dir & PKIND_RX) { + /* rx pkind set req valid only for cgx mapped PFs */ + if (!is_cgx_config_permitted(rvu, pcifunc)) + return 0; + rvu_get_cgx_lmac_id(rvu->pf2cgxlmac_map[pf], &cgx_id, &lmac_id); + + rc = cgx_set_pkind(rvu_cgx_pdata(cgx_id, rvu), lmac_id, + rxpkind); + if (rc) + return rc; + } + + if (dir & PKIND_TX) { + /* Tx pkind set request valid if PCIFUNC has NIXLF attached */ + rc = nix_get_nixlf(rvu, pcifunc, &nixlf, &blkaddr); + if (rc) + return rc; + + rvu_write64(rvu, blkaddr, NIX_AF_LFX_TX_PARSE_CFG(nixlf), + txpkind); + } + + pfvf->intf_mode = intf_mode; + return 0; +} + +int rvu_mbox_handler_npc_set_pkind(struct rvu *rvu, struct npc_set_pkind *req, + struct msg_rsp *rsp) +{ + return rvu_npc_set_parse_mode(rvu, req->hdr.pcifunc, req->mode, + req->dir, req->pkind, req->var_len_off, + req->var_len_off_mask, req->shift_dir); +} + +int rvu_mbox_handler_npc_read_base_steer_rule(struct rvu *rvu, + struct msg_req *req, + struct npc_mcam_read_base_rule_rsp *rsp) +{ + struct npc_mcam *mcam = &rvu->hw->mcam; + int index, blkaddr, nixlf, rc = 0; + u16 pcifunc = req->hdr.pcifunc; + struct rvu_pfvf *pfvf; + u8 intf, enable; + + blkaddr = rvu_get_blkaddr(rvu, BLKTYPE_NPC, 0); + if (blkaddr < 0) + return NPC_MCAM_INVALID_REQ; + + /* Return the channel number in case of PF */ + if (!(pcifunc & RVU_PFVF_FUNC_MASK)) { + pfvf = rvu_get_pfvf(rvu, pcifunc); + rsp->entry.kw[0] = pfvf->rx_chan_base; + rsp->entry.kw_mask[0] = 0xFFFULL; + goto out; + } + + /* Find the pkt steering rule installed by PF to this VF */ + mutex_lock(&mcam->lock); + for (index = 0; index < mcam->bmap_entries; index++) { + if (mcam->entry2target_pffunc[index] == pcifunc) + goto read_entry; + } + + rc = nix_get_nixlf(rvu, pcifunc, &nixlf, NULL); + if (rc < 0) { + mutex_unlock(&mcam->lock); + goto out; + } + /* Read the default ucast entry if there is no pkt steering rule */ + index = npc_get_nixlf_mcam_index(mcam, pcifunc, nixlf, + NIXLF_UCAST_ENTRY); +read_entry: + /* Read the mcam entry */ + npc_read_mcam_entry(rvu, mcam, blkaddr, index, &rsp->entry, &intf, + &enable); + mutex_unlock(&mcam->lock); +out: + return rc; +} + +int rvu_mbox_handler_npc_mcam_entry_stats(struct rvu *rvu, + struct npc_mcam_get_stats_req *req, + struct npc_mcam_get_stats_rsp *rsp) +{ + struct npc_mcam *mcam = &rvu->hw->mcam; + u16 index, cntr; + int blkaddr; + u64 regval; + u32 bank; + + blkaddr = rvu_get_blkaddr(rvu, BLKTYPE_NPC, 0); + if (blkaddr < 0) + return NPC_MCAM_INVALID_REQ; + + mutex_lock(&mcam->lock); + + index = req->entry & (mcam->banksize - 1); + bank = npc_get_bank(mcam, req->entry); + + /* read MCAM entry STAT_ACT register */ + regval = rvu_read64(rvu, blkaddr, NPC_AF_MCAMEX_BANKX_STAT_ACT(index, bank)); + + if (!(regval & rvu->hw->npc_stat_ena)) { + rsp->stat_ena = 0; + mutex_unlock(&mcam->lock); + return 0; + } + + cntr = regval & 0x1FF; + + rsp->stat_ena = 1; + rsp->stat = rvu_read64(rvu, blkaddr, NPC_AF_MATCH_STATX(cntr)); + rsp->stat &= BIT_ULL(48) - 1; + + mutex_unlock(&mcam->lock); + + return 0; +} diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rvu_npc_fs.c b/drivers/net/ethernet/marvell/octeontx2/af/rvu_npc_fs.c new file mode 100644 index 000000000..80d6aa3f1 --- /dev/null +++ b/drivers/net/ethernet/marvell/octeontx2/af/rvu_npc_fs.c @@ -0,0 +1,1666 @@ +// SPDX-License-Identifier: GPL-2.0 +/* Marvell RVU Admin Function driver + * + * Copyright (C) 2020 Marvell. + */ + +#include <linux/bitfield.h> + +#include "rvu_struct.h" +#include "rvu_reg.h" +#include "rvu.h" +#include "npc.h" +#include "rvu_npc_fs.h" +#include "rvu_npc_hash.h" + +static const char * const npc_flow_names[] = { + [NPC_DMAC] = "dmac", + [NPC_SMAC] = "smac", + [NPC_ETYPE] = "ether type", + [NPC_VLAN_ETYPE_CTAG] = "vlan ether type ctag", + [NPC_VLAN_ETYPE_STAG] = "vlan ether type stag", + [NPC_OUTER_VID] = "outer vlan id", + [NPC_TOS] = "tos", + [NPC_SIP_IPV4] = "ipv4 source ip", + [NPC_DIP_IPV4] = "ipv4 destination ip", + [NPC_SIP_IPV6] = "ipv6 source ip", + [NPC_DIP_IPV6] = "ipv6 destination ip", + [NPC_IPPROTO_TCP] = "ip proto tcp", + [NPC_IPPROTO_UDP] = "ip proto udp", + [NPC_IPPROTO_SCTP] = "ip proto sctp", + [NPC_IPPROTO_ICMP] = "ip proto icmp", + [NPC_IPPROTO_ICMP6] = "ip proto icmp6", + [NPC_IPPROTO_AH] = "ip proto AH", + [NPC_IPPROTO_ESP] = "ip proto ESP", + [NPC_SPORT_TCP] = "tcp source port", + [NPC_DPORT_TCP] = "tcp destination port", + [NPC_SPORT_UDP] = "udp source port", + [NPC_DPORT_UDP] = "udp destination port", + [NPC_SPORT_SCTP] = "sctp source port", + [NPC_DPORT_SCTP] = "sctp destination port", + [NPC_LXMB] = "Mcast/Bcast header ", + [NPC_UNKNOWN] = "unknown", +}; + +bool npc_is_feature_supported(struct rvu *rvu, u64 features, u8 intf) +{ + struct npc_mcam *mcam = &rvu->hw->mcam; + u64 mcam_features; + u64 unsupported; + + mcam_features = is_npc_intf_tx(intf) ? mcam->tx_features : mcam->rx_features; + unsupported = (mcam_features ^ features) & ~mcam_features; + + /* Return false if at least one of the input flows is not extracted */ + return !unsupported; +} + +const char *npc_get_field_name(u8 hdr) +{ + if (hdr >= ARRAY_SIZE(npc_flow_names)) + return npc_flow_names[NPC_UNKNOWN]; + + return npc_flow_names[hdr]; +} + +/* Compute keyword masks and figure out the number of keywords a field + * spans in the key. + */ +static void npc_set_kw_masks(struct npc_mcam *mcam, u8 type, + u8 nr_bits, int start_kwi, int offset, u8 intf) +{ + struct npc_key_field *field = &mcam->rx_key_fields[type]; + u8 bits_in_kw; + int max_kwi; + + if (mcam->banks_per_entry == 1) + max_kwi = 1; /* NPC_MCAM_KEY_X1 */ + else if (mcam->banks_per_entry == 2) + max_kwi = 3; /* NPC_MCAM_KEY_X2 */ + else + max_kwi = 6; /* NPC_MCAM_KEY_X4 */ + + if (is_npc_intf_tx(intf)) + field = &mcam->tx_key_fields[type]; + + if (offset + nr_bits <= 64) { + /* one KW only */ + if (start_kwi > max_kwi) + return; + field->kw_mask[start_kwi] |= GENMASK_ULL(nr_bits - 1, 0) + << offset; + field->nr_kws = 1; + } else if (offset + nr_bits > 64 && + offset + nr_bits <= 128) { + /* two KWs */ + if (start_kwi + 1 > max_kwi) + return; + /* first KW mask */ + bits_in_kw = 64 - offset; + field->kw_mask[start_kwi] |= GENMASK_ULL(bits_in_kw - 1, 0) + << offset; + /* second KW mask i.e. mask for rest of bits */ + bits_in_kw = nr_bits + offset - 64; + field->kw_mask[start_kwi + 1] |= GENMASK_ULL(bits_in_kw - 1, 0); + field->nr_kws = 2; + } else { + /* three KWs */ + if (start_kwi + 2 > max_kwi) + return; + /* first KW mask */ + bits_in_kw = 64 - offset; + field->kw_mask[start_kwi] |= GENMASK_ULL(bits_in_kw - 1, 0) + << offset; + /* second KW mask */ + field->kw_mask[start_kwi + 1] = ~0ULL; + /* third KW mask i.e. mask for rest of bits */ + bits_in_kw = nr_bits + offset - 128; + field->kw_mask[start_kwi + 2] |= GENMASK_ULL(bits_in_kw - 1, 0); + field->nr_kws = 3; + } +} + +/* Helper function to figure out whether field exists in the key */ +static bool npc_is_field_present(struct rvu *rvu, enum key_fields type, u8 intf) +{ + struct npc_mcam *mcam = &rvu->hw->mcam; + struct npc_key_field *input; + + input = &mcam->rx_key_fields[type]; + if (is_npc_intf_tx(intf)) + input = &mcam->tx_key_fields[type]; + + return input->nr_kws > 0; +} + +static bool npc_is_same(struct npc_key_field *input, + struct npc_key_field *field) +{ + return memcmp(&input->layer_mdata, &field->layer_mdata, + sizeof(struct npc_layer_mdata)) == 0; +} + +static void npc_set_layer_mdata(struct npc_mcam *mcam, enum key_fields type, + u64 cfg, u8 lid, u8 lt, u8 intf) +{ + struct npc_key_field *input = &mcam->rx_key_fields[type]; + + if (is_npc_intf_tx(intf)) + input = &mcam->tx_key_fields[type]; + + input->layer_mdata.hdr = FIELD_GET(NPC_HDR_OFFSET, cfg); + input->layer_mdata.key = FIELD_GET(NPC_KEY_OFFSET, cfg); + input->layer_mdata.len = FIELD_GET(NPC_BYTESM, cfg) + 1; + input->layer_mdata.ltype = lt; + input->layer_mdata.lid = lid; +} + +static bool npc_check_overlap_fields(struct npc_key_field *input1, + struct npc_key_field *input2) +{ + int kwi; + + /* Fields with same layer id and different ltypes are mutually + * exclusive hence they can be overlapped + */ + if (input1->layer_mdata.lid == input2->layer_mdata.lid && + input1->layer_mdata.ltype != input2->layer_mdata.ltype) + return false; + + for (kwi = 0; kwi < NPC_MAX_KWS_IN_KEY; kwi++) { + if (input1->kw_mask[kwi] & input2->kw_mask[kwi]) + return true; + } + + return false; +} + +/* Helper function to check whether given field overlaps with any other fields + * in the key. Due to limitations on key size and the key extraction profile in + * use higher layers can overwrite lower layer's header fields. Hence overlap + * needs to be checked. + */ +static bool npc_check_overlap(struct rvu *rvu, int blkaddr, + enum key_fields type, u8 start_lid, u8 intf) +{ + struct npc_mcam *mcam = &rvu->hw->mcam; + struct npc_key_field *dummy, *input; + int start_kwi, offset; + u8 nr_bits, lid, lt, ld; + u64 cfg; + + dummy = &mcam->rx_key_fields[NPC_UNKNOWN]; + input = &mcam->rx_key_fields[type]; + + if (is_npc_intf_tx(intf)) { + dummy = &mcam->tx_key_fields[NPC_UNKNOWN]; + input = &mcam->tx_key_fields[type]; + } + + for (lid = start_lid; lid < NPC_MAX_LID; lid++) { + for (lt = 0; lt < NPC_MAX_LT; lt++) { + for (ld = 0; ld < NPC_MAX_LD; ld++) { + cfg = rvu_read64(rvu, blkaddr, + NPC_AF_INTFX_LIDX_LTX_LDX_CFG + (intf, lid, lt, ld)); + if (!FIELD_GET(NPC_LDATA_EN, cfg)) + continue; + memset(dummy, 0, sizeof(struct npc_key_field)); + npc_set_layer_mdata(mcam, NPC_UNKNOWN, cfg, + lid, lt, intf); + /* exclude input */ + if (npc_is_same(input, dummy)) + continue; + start_kwi = dummy->layer_mdata.key / 8; + offset = (dummy->layer_mdata.key * 8) % 64; + nr_bits = dummy->layer_mdata.len * 8; + /* form KW masks */ + npc_set_kw_masks(mcam, NPC_UNKNOWN, nr_bits, + start_kwi, offset, intf); + /* check any input field bits falls in any + * other field bits. + */ + if (npc_check_overlap_fields(dummy, input)) + return true; + } + } + } + + return false; +} + +static bool npc_check_field(struct rvu *rvu, int blkaddr, enum key_fields type, + u8 intf) +{ + if (!npc_is_field_present(rvu, type, intf) || + npc_check_overlap(rvu, blkaddr, type, 0, intf)) + return false; + return true; +} + +static void npc_scan_exact_result(struct npc_mcam *mcam, u8 bit_number, + u8 key_nibble, u8 intf) +{ + u8 offset = (key_nibble * 4) % 64; /* offset within key word */ + u8 kwi = (key_nibble * 4) / 64; /* which word in key */ + u8 nr_bits = 4; /* bits in a nibble */ + u8 type; + + switch (bit_number) { + case 40 ... 43: + type = NPC_EXACT_RESULT; + break; + + default: + return; + } + npc_set_kw_masks(mcam, type, nr_bits, kwi, offset, intf); +} + +static void npc_scan_parse_result(struct npc_mcam *mcam, u8 bit_number, + u8 key_nibble, u8 intf) +{ + u8 offset = (key_nibble * 4) % 64; /* offset within key word */ + u8 kwi = (key_nibble * 4) / 64; /* which word in key */ + u8 nr_bits = 4; /* bits in a nibble */ + u8 type; + + switch (bit_number) { + case 0 ... 2: + type = NPC_CHAN; + break; + case 3: + type = NPC_ERRLEV; + break; + case 4 ... 5: + type = NPC_ERRCODE; + break; + case 6: + type = NPC_LXMB; + break; + /* check for LTYPE only as of now */ + case 9: + type = NPC_LA; + break; + case 12: + type = NPC_LB; + break; + case 15: + type = NPC_LC; + break; + case 18: + type = NPC_LD; + break; + case 21: + type = NPC_LE; + break; + case 24: + type = NPC_LF; + break; + case 27: + type = NPC_LG; + break; + case 30: + type = NPC_LH; + break; + default: + return; + } + + npc_set_kw_masks(mcam, type, nr_bits, kwi, offset, intf); +} + +static void npc_handle_multi_layer_fields(struct rvu *rvu, int blkaddr, u8 intf) +{ + struct npc_mcam *mcam = &rvu->hw->mcam; + struct npc_key_field *key_fields; + /* Ether type can come from three layers + * (ethernet, single tagged, double tagged) + */ + struct npc_key_field *etype_ether; + struct npc_key_field *etype_tag1; + struct npc_key_field *etype_tag2; + /* Outer VLAN TCI can come from two layers + * (single tagged, double tagged) + */ + struct npc_key_field *vlan_tag1; + struct npc_key_field *vlan_tag2; + u64 *features; + u8 start_lid; + int i; + + key_fields = mcam->rx_key_fields; + features = &mcam->rx_features; + + if (is_npc_intf_tx(intf)) { + key_fields = mcam->tx_key_fields; + features = &mcam->tx_features; + } + + /* Handle header fields which can come from multiple layers like + * etype, outer vlan tci. These fields should have same position in + * the key otherwise to install a mcam rule more than one entry is + * needed which complicates mcam space management. + */ + etype_ether = &key_fields[NPC_ETYPE_ETHER]; + etype_tag1 = &key_fields[NPC_ETYPE_TAG1]; + etype_tag2 = &key_fields[NPC_ETYPE_TAG2]; + vlan_tag1 = &key_fields[NPC_VLAN_TAG1]; + vlan_tag2 = &key_fields[NPC_VLAN_TAG2]; + + /* if key profile programmed does not extract Ethertype at all */ + if (!etype_ether->nr_kws && !etype_tag1->nr_kws && !etype_tag2->nr_kws) { + dev_err(rvu->dev, "mkex: Ethertype is not extracted.\n"); + goto vlan_tci; + } + + /* if key profile programmed extracts Ethertype from one layer */ + if (etype_ether->nr_kws && !etype_tag1->nr_kws && !etype_tag2->nr_kws) + key_fields[NPC_ETYPE] = *etype_ether; + if (!etype_ether->nr_kws && etype_tag1->nr_kws && !etype_tag2->nr_kws) + key_fields[NPC_ETYPE] = *etype_tag1; + if (!etype_ether->nr_kws && !etype_tag1->nr_kws && etype_tag2->nr_kws) + key_fields[NPC_ETYPE] = *etype_tag2; + + /* if key profile programmed extracts Ethertype from multiple layers */ + if (etype_ether->nr_kws && etype_tag1->nr_kws) { + for (i = 0; i < NPC_MAX_KWS_IN_KEY; i++) { + if (etype_ether->kw_mask[i] != etype_tag1->kw_mask[i]) { + dev_err(rvu->dev, "mkex: Etype pos is different for untagged and tagged pkts.\n"); + goto vlan_tci; + } + } + key_fields[NPC_ETYPE] = *etype_tag1; + } + if (etype_ether->nr_kws && etype_tag2->nr_kws) { + for (i = 0; i < NPC_MAX_KWS_IN_KEY; i++) { + if (etype_ether->kw_mask[i] != etype_tag2->kw_mask[i]) { + dev_err(rvu->dev, "mkex: Etype pos is different for untagged and double tagged pkts.\n"); + goto vlan_tci; + } + } + key_fields[NPC_ETYPE] = *etype_tag2; + } + if (etype_tag1->nr_kws && etype_tag2->nr_kws) { + for (i = 0; i < NPC_MAX_KWS_IN_KEY; i++) { + if (etype_tag1->kw_mask[i] != etype_tag2->kw_mask[i]) { + dev_err(rvu->dev, "mkex: Etype pos is different for tagged and double tagged pkts.\n"); + goto vlan_tci; + } + } + key_fields[NPC_ETYPE] = *etype_tag2; + } + + /* check none of higher layers overwrite Ethertype */ + start_lid = key_fields[NPC_ETYPE].layer_mdata.lid + 1; + if (npc_check_overlap(rvu, blkaddr, NPC_ETYPE, start_lid, intf)) { + dev_err(rvu->dev, "mkex: Ethertype is overwritten by higher layers.\n"); + goto vlan_tci; + } + *features |= BIT_ULL(NPC_ETYPE); +vlan_tci: + /* if key profile does not extract outer vlan tci at all */ + if (!vlan_tag1->nr_kws && !vlan_tag2->nr_kws) { + dev_err(rvu->dev, "mkex: Outer vlan tci is not extracted.\n"); + goto done; + } + + /* if key profile extracts outer vlan tci from one layer */ + if (vlan_tag1->nr_kws && !vlan_tag2->nr_kws) + key_fields[NPC_OUTER_VID] = *vlan_tag1; + if (!vlan_tag1->nr_kws && vlan_tag2->nr_kws) + key_fields[NPC_OUTER_VID] = *vlan_tag2; + + /* if key profile extracts outer vlan tci from multiple layers */ + if (vlan_tag1->nr_kws && vlan_tag2->nr_kws) { + for (i = 0; i < NPC_MAX_KWS_IN_KEY; i++) { + if (vlan_tag1->kw_mask[i] != vlan_tag2->kw_mask[i]) { + dev_err(rvu->dev, "mkex: Out vlan tci pos is different for tagged and double tagged pkts.\n"); + goto done; + } + } + key_fields[NPC_OUTER_VID] = *vlan_tag2; + } + /* check none of higher layers overwrite outer vlan tci */ + start_lid = key_fields[NPC_OUTER_VID].layer_mdata.lid + 1; + if (npc_check_overlap(rvu, blkaddr, NPC_OUTER_VID, start_lid, intf)) { + dev_err(rvu->dev, "mkex: Outer vlan tci is overwritten by higher layers.\n"); + goto done; + } + *features |= BIT_ULL(NPC_OUTER_VID); +done: + return; +} + +static void npc_scan_ldata(struct rvu *rvu, int blkaddr, u8 lid, + u8 lt, u64 cfg, u8 intf) +{ + struct npc_mcam_kex_hash *mkex_hash = rvu->kpu.mkex_hash; + struct npc_mcam *mcam = &rvu->hw->mcam; + u8 hdr, key, nr_bytes, bit_offset; + u8 la_ltype, la_start; + /* starting KW index and starting bit position */ + int start_kwi, offset; + + nr_bytes = FIELD_GET(NPC_BYTESM, cfg) + 1; + hdr = FIELD_GET(NPC_HDR_OFFSET, cfg); + key = FIELD_GET(NPC_KEY_OFFSET, cfg); + + /* For Tx, Layer A has NIX_INST_HDR_S(64 bytes) preceding + * ethernet header. + */ + if (is_npc_intf_tx(intf)) { + la_ltype = NPC_LT_LA_IH_NIX_ETHER; + la_start = 8; + } else { + la_ltype = NPC_LT_LA_ETHER; + la_start = 0; + } + +#define NPC_SCAN_HDR(name, hlid, hlt, hstart, hlen) \ +do { \ + start_kwi = key / 8; \ + offset = (key * 8) % 64; \ + if (lid == (hlid) && lt == (hlt)) { \ + if ((hstart) >= hdr && \ + ((hstart) + (hlen)) <= (hdr + nr_bytes)) { \ + bit_offset = (hdr + nr_bytes - (hstart) - (hlen)) * 8; \ + npc_set_layer_mdata(mcam, (name), cfg, lid, lt, intf); \ + offset += bit_offset; \ + start_kwi += offset / 64; \ + offset %= 64; \ + npc_set_kw_masks(mcam, (name), (hlen) * 8, \ + start_kwi, offset, intf); \ + } \ + } \ +} while (0) + + /* List LID, LTYPE, start offset from layer and length(in bytes) of + * packet header fields below. + * Example: Source IP is 4 bytes and starts at 12th byte of IP header + */ + NPC_SCAN_HDR(NPC_TOS, NPC_LID_LC, NPC_LT_LC_IP, 1, 1); + NPC_SCAN_HDR(NPC_SIP_IPV4, NPC_LID_LC, NPC_LT_LC_IP, 12, 4); + NPC_SCAN_HDR(NPC_DIP_IPV4, NPC_LID_LC, NPC_LT_LC_IP, 16, 4); + if (rvu->hw->cap.npc_hash_extract) { + if (mkex_hash->lid_lt_ld_hash_en[intf][lid][lt][0]) + NPC_SCAN_HDR(NPC_SIP_IPV6, NPC_LID_LC, NPC_LT_LC_IP6, 8, 4); + else + NPC_SCAN_HDR(NPC_SIP_IPV6, NPC_LID_LC, NPC_LT_LC_IP6, 8, 16); + + if (mkex_hash->lid_lt_ld_hash_en[intf][lid][lt][1]) + NPC_SCAN_HDR(NPC_DIP_IPV6, NPC_LID_LC, NPC_LT_LC_IP6, 24, 4); + else + NPC_SCAN_HDR(NPC_DIP_IPV6, NPC_LID_LC, NPC_LT_LC_IP6, 24, 16); + } else { + NPC_SCAN_HDR(NPC_SIP_IPV6, NPC_LID_LC, NPC_LT_LC_IP6, 8, 16); + NPC_SCAN_HDR(NPC_DIP_IPV6, NPC_LID_LC, NPC_LT_LC_IP6, 24, 16); + } + + NPC_SCAN_HDR(NPC_SPORT_UDP, NPC_LID_LD, NPC_LT_LD_UDP, 0, 2); + NPC_SCAN_HDR(NPC_DPORT_UDP, NPC_LID_LD, NPC_LT_LD_UDP, 2, 2); + NPC_SCAN_HDR(NPC_SPORT_TCP, NPC_LID_LD, NPC_LT_LD_TCP, 0, 2); + NPC_SCAN_HDR(NPC_DPORT_TCP, NPC_LID_LD, NPC_LT_LD_TCP, 2, 2); + NPC_SCAN_HDR(NPC_SPORT_SCTP, NPC_LID_LD, NPC_LT_LD_SCTP, 0, 2); + NPC_SCAN_HDR(NPC_DPORT_SCTP, NPC_LID_LD, NPC_LT_LD_SCTP, 2, 2); + NPC_SCAN_HDR(NPC_ETYPE_ETHER, NPC_LID_LA, NPC_LT_LA_ETHER, 12, 2); + NPC_SCAN_HDR(NPC_ETYPE_TAG1, NPC_LID_LB, NPC_LT_LB_CTAG, 4, 2); + NPC_SCAN_HDR(NPC_ETYPE_TAG2, NPC_LID_LB, NPC_LT_LB_STAG_QINQ, 8, 2); + NPC_SCAN_HDR(NPC_VLAN_TAG1, NPC_LID_LB, NPC_LT_LB_CTAG, 2, 2); + NPC_SCAN_HDR(NPC_VLAN_TAG2, NPC_LID_LB, NPC_LT_LB_STAG_QINQ, 2, 2); + NPC_SCAN_HDR(NPC_DMAC, NPC_LID_LA, la_ltype, la_start, 6); + /* SMAC follows the DMAC(which is 6 bytes) */ + NPC_SCAN_HDR(NPC_SMAC, NPC_LID_LA, la_ltype, la_start + 6, 6); + /* PF_FUNC is 2 bytes at 0th byte of NPC_LT_LA_IH_NIX_ETHER */ + NPC_SCAN_HDR(NPC_PF_FUNC, NPC_LID_LA, NPC_LT_LA_IH_NIX_ETHER, 0, 2); +} + +static void npc_set_features(struct rvu *rvu, int blkaddr, u8 intf) +{ + struct npc_mcam *mcam = &rvu->hw->mcam; + u64 *features = &mcam->rx_features; + u64 tcp_udp_sctp; + int hdr; + + if (is_npc_intf_tx(intf)) + features = &mcam->tx_features; + + for (hdr = NPC_DMAC; hdr < NPC_HEADER_FIELDS_MAX; hdr++) { + if (npc_check_field(rvu, blkaddr, hdr, intf)) + *features |= BIT_ULL(hdr); + } + + tcp_udp_sctp = BIT_ULL(NPC_SPORT_TCP) | BIT_ULL(NPC_SPORT_UDP) | + BIT_ULL(NPC_DPORT_TCP) | BIT_ULL(NPC_DPORT_UDP) | + BIT_ULL(NPC_SPORT_SCTP) | BIT_ULL(NPC_DPORT_SCTP); + + /* for tcp/udp/sctp corresponding layer type should be in the key */ + if (*features & tcp_udp_sctp) { + if (!npc_check_field(rvu, blkaddr, NPC_LD, intf)) + *features &= ~tcp_udp_sctp; + else + *features |= BIT_ULL(NPC_IPPROTO_TCP) | + BIT_ULL(NPC_IPPROTO_UDP) | + BIT_ULL(NPC_IPPROTO_SCTP); + } + + /* for AH/ICMP/ICMPv6/, check if corresponding layer type is present in the key */ + if (npc_check_field(rvu, blkaddr, NPC_LD, intf)) { + *features |= BIT_ULL(NPC_IPPROTO_AH); + *features |= BIT_ULL(NPC_IPPROTO_ICMP); + *features |= BIT_ULL(NPC_IPPROTO_ICMP6); + } + + /* for ESP, check if corresponding layer type is present in the key */ + if (npc_check_field(rvu, blkaddr, NPC_LE, intf)) + *features |= BIT_ULL(NPC_IPPROTO_ESP); + + /* for vlan corresponding layer type should be in the key */ + if (*features & BIT_ULL(NPC_OUTER_VID)) + if (!npc_check_field(rvu, blkaddr, NPC_LB, intf)) + *features &= ~BIT_ULL(NPC_OUTER_VID); + + /* for vlan ethertypes corresponding layer type should be in the key */ + if (npc_check_field(rvu, blkaddr, NPC_LB, intf)) + *features |= BIT_ULL(NPC_VLAN_ETYPE_CTAG) | + BIT_ULL(NPC_VLAN_ETYPE_STAG); + + /* for L2M/L2B/L3M/L3B, check if the type is present in the key */ + if (npc_check_field(rvu, blkaddr, NPC_LXMB, intf)) + *features |= BIT_ULL(NPC_LXMB); +} + +/* Scan key extraction profile and record how fields of our interest + * fill the key structure. Also verify Channel and DMAC exists in + * key and not overwritten by other header fields. + */ +static int npc_scan_kex(struct rvu *rvu, int blkaddr, u8 intf) +{ + struct npc_mcam *mcam = &rvu->hw->mcam; + u8 lid, lt, ld, bitnr; + u64 cfg, masked_cfg; + u8 key_nibble = 0; + + /* Scan and note how parse result is going to be in key. + * A bit set in PARSE_NIBBLE_ENA corresponds to a nibble from + * parse result in the key. The enabled nibbles from parse result + * will be concatenated in key. + */ + cfg = rvu_read64(rvu, blkaddr, NPC_AF_INTFX_KEX_CFG(intf)); + masked_cfg = cfg & NPC_PARSE_NIBBLE; + for_each_set_bit(bitnr, (unsigned long *)&masked_cfg, 31) { + npc_scan_parse_result(mcam, bitnr, key_nibble, intf); + key_nibble++; + } + + /* Ignore exact match bits for mcam entries except the first rule + * which is drop on hit. This first rule is configured explitcitly by + * exact match code. + */ + masked_cfg = cfg & NPC_EXACT_NIBBLE; + bitnr = NPC_EXACT_NIBBLE_START; + for_each_set_bit_from(bitnr, (unsigned long *)&masked_cfg, NPC_EXACT_NIBBLE_END + 1) { + npc_scan_exact_result(mcam, bitnr, key_nibble, intf); + key_nibble++; + } + + /* Scan and note how layer data is going to be in key */ + for (lid = 0; lid < NPC_MAX_LID; lid++) { + for (lt = 0; lt < NPC_MAX_LT; lt++) { + for (ld = 0; ld < NPC_MAX_LD; ld++) { + cfg = rvu_read64(rvu, blkaddr, + NPC_AF_INTFX_LIDX_LTX_LDX_CFG + (intf, lid, lt, ld)); + if (!FIELD_GET(NPC_LDATA_EN, cfg)) + continue; + npc_scan_ldata(rvu, blkaddr, lid, lt, cfg, + intf); + } + } + } + + return 0; +} + +static int npc_scan_verify_kex(struct rvu *rvu, int blkaddr) +{ + int err; + + err = npc_scan_kex(rvu, blkaddr, NIX_INTF_RX); + if (err) + return err; + + err = npc_scan_kex(rvu, blkaddr, NIX_INTF_TX); + if (err) + return err; + + /* Channel is mandatory */ + if (!npc_is_field_present(rvu, NPC_CHAN, NIX_INTF_RX)) { + dev_err(rvu->dev, "Channel not present in Key\n"); + return -EINVAL; + } + /* check that none of the fields overwrite channel */ + if (npc_check_overlap(rvu, blkaddr, NPC_CHAN, 0, NIX_INTF_RX)) { + dev_err(rvu->dev, "Channel cannot be overwritten\n"); + return -EINVAL; + } + + npc_set_features(rvu, blkaddr, NIX_INTF_TX); + npc_set_features(rvu, blkaddr, NIX_INTF_RX); + npc_handle_multi_layer_fields(rvu, blkaddr, NIX_INTF_TX); + npc_handle_multi_layer_fields(rvu, blkaddr, NIX_INTF_RX); + + return 0; +} + +int npc_flow_steering_init(struct rvu *rvu, int blkaddr) +{ + struct npc_mcam *mcam = &rvu->hw->mcam; + + INIT_LIST_HEAD(&mcam->mcam_rules); + + return npc_scan_verify_kex(rvu, blkaddr); +} + +static int npc_check_unsupported_flows(struct rvu *rvu, u64 features, u8 intf) +{ + struct npc_mcam *mcam = &rvu->hw->mcam; + u64 *mcam_features = &mcam->rx_features; + u64 unsupported; + u8 bit; + + if (is_npc_intf_tx(intf)) + mcam_features = &mcam->tx_features; + + unsupported = (*mcam_features ^ features) & ~(*mcam_features); + if (unsupported) { + dev_warn(rvu->dev, "Unsupported flow(s):\n"); + for_each_set_bit(bit, (unsigned long *)&unsupported, 64) + dev_warn(rvu->dev, "%s ", npc_get_field_name(bit)); + return -EOPNOTSUPP; + } + + return 0; +} + +/* npc_update_entry - Based on the masks generated during + * the key scanning, updates the given entry with value and + * masks for the field of interest. Maximum 16 bytes of a packet + * header can be extracted by HW hence lo and hi are sufficient. + * When field bytes are less than or equal to 8 then hi should be + * 0 for value and mask. + * + * If exact match of value is required then mask should be all 1's. + * If any bits in mask are 0 then corresponding bits in value are + * dont care. + */ +void npc_update_entry(struct rvu *rvu, enum key_fields type, + struct mcam_entry *entry, u64 val_lo, + u64 val_hi, u64 mask_lo, u64 mask_hi, u8 intf) +{ + struct npc_mcam *mcam = &rvu->hw->mcam; + struct mcam_entry dummy = { {0} }; + struct npc_key_field *field; + u64 kw1, kw2, kw3; + u8 shift; + int i; + + field = &mcam->rx_key_fields[type]; + if (is_npc_intf_tx(intf)) + field = &mcam->tx_key_fields[type]; + + if (!field->nr_kws) + return; + + for (i = 0; i < NPC_MAX_KWS_IN_KEY; i++) { + if (!field->kw_mask[i]) + continue; + /* place key value in kw[x] */ + shift = __ffs64(field->kw_mask[i]); + /* update entry value */ + kw1 = (val_lo << shift) & field->kw_mask[i]; + dummy.kw[i] = kw1; + /* update entry mask */ + kw1 = (mask_lo << shift) & field->kw_mask[i]; + dummy.kw_mask[i] = kw1; + + if (field->nr_kws == 1) + break; + /* place remaining bits of key value in kw[x + 1] */ + if (field->nr_kws == 2) { + /* update entry value */ + kw2 = shift ? val_lo >> (64 - shift) : 0; + kw2 |= (val_hi << shift); + kw2 &= field->kw_mask[i + 1]; + dummy.kw[i + 1] = kw2; + /* update entry mask */ + kw2 = shift ? mask_lo >> (64 - shift) : 0; + kw2 |= (mask_hi << shift); + kw2 &= field->kw_mask[i + 1]; + dummy.kw_mask[i + 1] = kw2; + break; + } + /* place remaining bits of key value in kw[x + 1], kw[x + 2] */ + if (field->nr_kws == 3) { + /* update entry value */ + kw2 = shift ? val_lo >> (64 - shift) : 0; + kw2 |= (val_hi << shift); + kw2 &= field->kw_mask[i + 1]; + kw3 = shift ? val_hi >> (64 - shift) : 0; + kw3 &= field->kw_mask[i + 2]; + dummy.kw[i + 1] = kw2; + dummy.kw[i + 2] = kw3; + /* update entry mask */ + kw2 = shift ? mask_lo >> (64 - shift) : 0; + kw2 |= (mask_hi << shift); + kw2 &= field->kw_mask[i + 1]; + kw3 = shift ? mask_hi >> (64 - shift) : 0; + kw3 &= field->kw_mask[i + 2]; + dummy.kw_mask[i + 1] = kw2; + dummy.kw_mask[i + 2] = kw3; + break; + } + } + /* dummy is ready with values and masks for given key + * field now clear and update input entry with those + */ + for (i = 0; i < NPC_MAX_KWS_IN_KEY; i++) { + if (!field->kw_mask[i]) + continue; + entry->kw[i] &= ~field->kw_mask[i]; + entry->kw_mask[i] &= ~field->kw_mask[i]; + + entry->kw[i] |= dummy.kw[i]; + entry->kw_mask[i] |= dummy.kw_mask[i]; + } +} + +static void npc_update_ipv6_flow(struct rvu *rvu, struct mcam_entry *entry, + u64 features, struct flow_msg *pkt, + struct flow_msg *mask, + struct rvu_npc_mcam_rule *output, u8 intf) +{ + u32 src_ip[IPV6_WORDS], src_ip_mask[IPV6_WORDS]; + u32 dst_ip[IPV6_WORDS], dst_ip_mask[IPV6_WORDS]; + struct flow_msg *opkt = &output->packet; + struct flow_msg *omask = &output->mask; + u64 mask_lo, mask_hi; + u64 val_lo, val_hi; + + /* For an ipv6 address fe80::2c68:63ff:fe5e:2d0a the packet + * values to be programmed in MCAM should as below: + * val_high: 0xfe80000000000000 + * val_low: 0x2c6863fffe5e2d0a + */ + if (features & BIT_ULL(NPC_SIP_IPV6)) { + be32_to_cpu_array(src_ip_mask, mask->ip6src, IPV6_WORDS); + be32_to_cpu_array(src_ip, pkt->ip6src, IPV6_WORDS); + + mask_hi = (u64)src_ip_mask[0] << 32 | src_ip_mask[1]; + mask_lo = (u64)src_ip_mask[2] << 32 | src_ip_mask[3]; + val_hi = (u64)src_ip[0] << 32 | src_ip[1]; + val_lo = (u64)src_ip[2] << 32 | src_ip[3]; + + npc_update_entry(rvu, NPC_SIP_IPV6, entry, val_lo, val_hi, + mask_lo, mask_hi, intf); + memcpy(opkt->ip6src, pkt->ip6src, sizeof(opkt->ip6src)); + memcpy(omask->ip6src, mask->ip6src, sizeof(omask->ip6src)); + } + if (features & BIT_ULL(NPC_DIP_IPV6)) { + be32_to_cpu_array(dst_ip_mask, mask->ip6dst, IPV6_WORDS); + be32_to_cpu_array(dst_ip, pkt->ip6dst, IPV6_WORDS); + + mask_hi = (u64)dst_ip_mask[0] << 32 | dst_ip_mask[1]; + mask_lo = (u64)dst_ip_mask[2] << 32 | dst_ip_mask[3]; + val_hi = (u64)dst_ip[0] << 32 | dst_ip[1]; + val_lo = (u64)dst_ip[2] << 32 | dst_ip[3]; + + npc_update_entry(rvu, NPC_DIP_IPV6, entry, val_lo, val_hi, + mask_lo, mask_hi, intf); + memcpy(opkt->ip6dst, pkt->ip6dst, sizeof(opkt->ip6dst)); + memcpy(omask->ip6dst, mask->ip6dst, sizeof(omask->ip6dst)); + } +} + +static void npc_update_vlan_features(struct rvu *rvu, struct mcam_entry *entry, + u64 features, u8 intf) +{ + bool ctag = !!(features & BIT_ULL(NPC_VLAN_ETYPE_CTAG)); + bool stag = !!(features & BIT_ULL(NPC_VLAN_ETYPE_STAG)); + bool vid = !!(features & BIT_ULL(NPC_OUTER_VID)); + + /* If only VLAN id is given then always match outer VLAN id */ + if (vid && !ctag && !stag) { + npc_update_entry(rvu, NPC_LB, entry, + NPC_LT_LB_STAG_QINQ | NPC_LT_LB_CTAG, 0, + NPC_LT_LB_STAG_QINQ & NPC_LT_LB_CTAG, 0, intf); + return; + } + if (ctag) + npc_update_entry(rvu, NPC_LB, entry, NPC_LT_LB_CTAG, 0, + ~0ULL, 0, intf); + if (stag) + npc_update_entry(rvu, NPC_LB, entry, NPC_LT_LB_STAG_QINQ, 0, + ~0ULL, 0, intf); +} + +static void npc_update_flow(struct rvu *rvu, struct mcam_entry *entry, + u64 features, struct flow_msg *pkt, + struct flow_msg *mask, + struct rvu_npc_mcam_rule *output, u8 intf, + int blkaddr) +{ + u64 dmac_mask = ether_addr_to_u64(mask->dmac); + u64 smac_mask = ether_addr_to_u64(mask->smac); + u64 dmac_val = ether_addr_to_u64(pkt->dmac); + u64 smac_val = ether_addr_to_u64(pkt->smac); + struct flow_msg *opkt = &output->packet; + struct flow_msg *omask = &output->mask; + + if (!features) + return; + + /* For tcp/udp/sctp LTYPE should be present in entry */ + if (features & BIT_ULL(NPC_IPPROTO_TCP)) + npc_update_entry(rvu, NPC_LD, entry, NPC_LT_LD_TCP, + 0, ~0ULL, 0, intf); + if (features & BIT_ULL(NPC_IPPROTO_UDP)) + npc_update_entry(rvu, NPC_LD, entry, NPC_LT_LD_UDP, + 0, ~0ULL, 0, intf); + if (features & BIT_ULL(NPC_IPPROTO_SCTP)) + npc_update_entry(rvu, NPC_LD, entry, NPC_LT_LD_SCTP, + 0, ~0ULL, 0, intf); + if (features & BIT_ULL(NPC_IPPROTO_ICMP)) + npc_update_entry(rvu, NPC_LD, entry, NPC_LT_LD_ICMP, + 0, ~0ULL, 0, intf); + if (features & BIT_ULL(NPC_IPPROTO_ICMP6)) + npc_update_entry(rvu, NPC_LD, entry, NPC_LT_LD_ICMP6, + 0, ~0ULL, 0, intf); + + /* For AH, LTYPE should be present in entry */ + if (features & BIT_ULL(NPC_IPPROTO_AH)) + npc_update_entry(rvu, NPC_LD, entry, NPC_LT_LD_AH, + 0, ~0ULL, 0, intf); + /* For ESP, LTYPE should be present in entry */ + if (features & BIT_ULL(NPC_IPPROTO_ESP)) + npc_update_entry(rvu, NPC_LE, entry, NPC_LT_LE_ESP, + 0, ~0ULL, 0, intf); + + if (features & BIT_ULL(NPC_LXMB)) { + output->lxmb = is_broadcast_ether_addr(pkt->dmac) ? 2 : 1; + npc_update_entry(rvu, NPC_LXMB, entry, output->lxmb, 0, + output->lxmb, 0, intf); + } +#define NPC_WRITE_FLOW(field, member, val_lo, val_hi, mask_lo, mask_hi) \ +do { \ + if (features & BIT_ULL((field))) { \ + npc_update_entry(rvu, (field), entry, (val_lo), (val_hi), \ + (mask_lo), (mask_hi), intf); \ + memcpy(&opkt->member, &pkt->member, sizeof(pkt->member)); \ + memcpy(&omask->member, &mask->member, sizeof(mask->member)); \ + } \ +} while (0) + + NPC_WRITE_FLOW(NPC_DMAC, dmac, dmac_val, 0, dmac_mask, 0); + + NPC_WRITE_FLOW(NPC_SMAC, smac, smac_val, 0, smac_mask, 0); + NPC_WRITE_FLOW(NPC_ETYPE, etype, ntohs(pkt->etype), 0, + ntohs(mask->etype), 0); + NPC_WRITE_FLOW(NPC_TOS, tos, pkt->tos, 0, mask->tos, 0); + NPC_WRITE_FLOW(NPC_SIP_IPV4, ip4src, ntohl(pkt->ip4src), 0, + ntohl(mask->ip4src), 0); + NPC_WRITE_FLOW(NPC_DIP_IPV4, ip4dst, ntohl(pkt->ip4dst), 0, + ntohl(mask->ip4dst), 0); + NPC_WRITE_FLOW(NPC_SPORT_TCP, sport, ntohs(pkt->sport), 0, + ntohs(mask->sport), 0); + NPC_WRITE_FLOW(NPC_SPORT_UDP, sport, ntohs(pkt->sport), 0, + ntohs(mask->sport), 0); + NPC_WRITE_FLOW(NPC_DPORT_TCP, dport, ntohs(pkt->dport), 0, + ntohs(mask->dport), 0); + NPC_WRITE_FLOW(NPC_DPORT_UDP, dport, ntohs(pkt->dport), 0, + ntohs(mask->dport), 0); + NPC_WRITE_FLOW(NPC_SPORT_SCTP, sport, ntohs(pkt->sport), 0, + ntohs(mask->sport), 0); + NPC_WRITE_FLOW(NPC_DPORT_SCTP, dport, ntohs(pkt->dport), 0, + ntohs(mask->dport), 0); + + NPC_WRITE_FLOW(NPC_OUTER_VID, vlan_tci, ntohs(pkt->vlan_tci), 0, + ntohs(mask->vlan_tci), 0); + + npc_update_ipv6_flow(rvu, entry, features, pkt, mask, output, intf); + npc_update_vlan_features(rvu, entry, features, intf); + + npc_update_field_hash(rvu, intf, entry, blkaddr, features, + pkt, mask, opkt, omask); +} + +static struct rvu_npc_mcam_rule *rvu_mcam_find_rule(struct npc_mcam *mcam, u16 entry) +{ + struct rvu_npc_mcam_rule *iter; + + mutex_lock(&mcam->lock); + list_for_each_entry(iter, &mcam->mcam_rules, list) { + if (iter->entry == entry) { + mutex_unlock(&mcam->lock); + return iter; + } + } + mutex_unlock(&mcam->lock); + + return NULL; +} + +static void rvu_mcam_add_rule(struct npc_mcam *mcam, + struct rvu_npc_mcam_rule *rule) +{ + struct list_head *head = &mcam->mcam_rules; + struct rvu_npc_mcam_rule *iter; + + mutex_lock(&mcam->lock); + list_for_each_entry(iter, &mcam->mcam_rules, list) { + if (iter->entry > rule->entry) + break; + head = &iter->list; + } + + list_add(&rule->list, head); + mutex_unlock(&mcam->lock); +} + +static void rvu_mcam_remove_counter_from_rule(struct rvu *rvu, u16 pcifunc, + struct rvu_npc_mcam_rule *rule) +{ + struct npc_mcam_oper_counter_req free_req = { 0 }; + struct msg_rsp free_rsp; + + if (!rule->has_cntr) + return; + + free_req.hdr.pcifunc = pcifunc; + free_req.cntr = rule->cntr; + + rvu_mbox_handler_npc_mcam_free_counter(rvu, &free_req, &free_rsp); + rule->has_cntr = false; +} + +static void rvu_mcam_add_counter_to_rule(struct rvu *rvu, u16 pcifunc, + struct rvu_npc_mcam_rule *rule, + struct npc_install_flow_rsp *rsp) +{ + struct npc_mcam_alloc_counter_req cntr_req = { 0 }; + struct npc_mcam_alloc_counter_rsp cntr_rsp = { 0 }; + int err; + + cntr_req.hdr.pcifunc = pcifunc; + cntr_req.contig = true; + cntr_req.count = 1; + + /* we try to allocate a counter to track the stats of this + * rule. If counter could not be allocated then proceed + * without counter because counters are limited than entries. + */ + err = rvu_mbox_handler_npc_mcam_alloc_counter(rvu, &cntr_req, + &cntr_rsp); + if (!err && cntr_rsp.count) { + rule->cntr = cntr_rsp.cntr; + rule->has_cntr = true; + rsp->counter = rule->cntr; + } else { + rsp->counter = err; + } +} + +static void npc_update_rx_entry(struct rvu *rvu, struct rvu_pfvf *pfvf, + struct mcam_entry *entry, + struct npc_install_flow_req *req, + u16 target, bool pf_set_vfs_mac) +{ + struct rvu_switch *rswitch = &rvu->rswitch; + struct nix_rx_action action; + + if (rswitch->mode == DEVLINK_ESWITCH_MODE_SWITCHDEV && pf_set_vfs_mac) + req->chan_mask = 0x0; /* Do not care channel */ + + npc_update_entry(rvu, NPC_CHAN, entry, req->channel, 0, req->chan_mask, + 0, NIX_INTF_RX); + + *(u64 *)&action = 0x00; + action.pf_func = target; + action.op = req->op; + action.index = req->index; + action.match_id = req->match_id; + action.flow_key_alg = req->flow_key_alg; + + if (req->op == NIX_RX_ACTION_DEFAULT) { + if (pfvf->def_ucast_rule) { + action = pfvf->def_ucast_rule->rx_action; + } else { + /* For profiles which do not extract DMAC, the default + * unicast entry is unused. Hence modify action for the + * requests which use same action as default unicast + * entry + */ + *(u64 *)&action = 0; + action.pf_func = target; + action.op = NIX_RX_ACTIONOP_UCAST; + } + } + + entry->action = *(u64 *)&action; + + /* VTAG0 starts at 0th byte of LID_B. + * VTAG1 starts at 4th byte of LID_B. + */ + entry->vtag_action = FIELD_PREP(RX_VTAG0_VALID_BIT, req->vtag0_valid) | + FIELD_PREP(RX_VTAG0_TYPE_MASK, req->vtag0_type) | + FIELD_PREP(RX_VTAG0_LID_MASK, NPC_LID_LB) | + FIELD_PREP(RX_VTAG0_RELPTR_MASK, 0) | + FIELD_PREP(RX_VTAG1_VALID_BIT, req->vtag1_valid) | + FIELD_PREP(RX_VTAG1_TYPE_MASK, req->vtag1_type) | + FIELD_PREP(RX_VTAG1_LID_MASK, NPC_LID_LB) | + FIELD_PREP(RX_VTAG1_RELPTR_MASK, 4); +} + +static void npc_update_tx_entry(struct rvu *rvu, struct rvu_pfvf *pfvf, + struct mcam_entry *entry, + struct npc_install_flow_req *req, u16 target) +{ + struct nix_tx_action action; + u64 mask = ~0ULL; + + /* If AF is installing then do not care about + * PF_FUNC in Send Descriptor + */ + if (is_pffunc_af(req->hdr.pcifunc)) + mask = 0; + + npc_update_entry(rvu, NPC_PF_FUNC, entry, (__force u16)htons(target), + 0, mask, 0, NIX_INTF_TX); + + *(u64 *)&action = 0x00; + action.op = req->op; + action.index = req->index; + action.match_id = req->match_id; + + entry->action = *(u64 *)&action; + + /* VTAG0 starts at 0th byte of LID_B. + * VTAG1 starts at 4th byte of LID_B. + */ + entry->vtag_action = FIELD_PREP(TX_VTAG0_DEF_MASK, req->vtag0_def) | + FIELD_PREP(TX_VTAG0_OP_MASK, req->vtag0_op) | + FIELD_PREP(TX_VTAG0_LID_MASK, NPC_LID_LA) | + FIELD_PREP(TX_VTAG0_RELPTR_MASK, 20) | + FIELD_PREP(TX_VTAG1_DEF_MASK, req->vtag1_def) | + FIELD_PREP(TX_VTAG1_OP_MASK, req->vtag1_op) | + FIELD_PREP(TX_VTAG1_LID_MASK, NPC_LID_LA) | + FIELD_PREP(TX_VTAG1_RELPTR_MASK, 24); +} + +static int npc_install_flow(struct rvu *rvu, int blkaddr, u16 target, + int nixlf, struct rvu_pfvf *pfvf, + struct npc_install_flow_req *req, + struct npc_install_flow_rsp *rsp, bool enable, + bool pf_set_vfs_mac) +{ + struct rvu_npc_mcam_rule *def_ucast_rule = pfvf->def_ucast_rule; + u64 features, installed_features, missing_features = 0; + struct npc_mcam_write_entry_req write_req = { 0 }; + struct npc_mcam *mcam = &rvu->hw->mcam; + struct rvu_npc_mcam_rule dummy = { 0 }; + struct rvu_npc_mcam_rule *rule; + u16 owner = req->hdr.pcifunc; + struct msg_rsp write_rsp; + struct mcam_entry *entry; + bool new = false; + u16 entry_index; + int err; + + installed_features = req->features; + features = req->features; + entry = &write_req.entry_data; + entry_index = req->entry; + + npc_update_flow(rvu, entry, features, &req->packet, &req->mask, &dummy, + req->intf, blkaddr); + + if (is_npc_intf_rx(req->intf)) + npc_update_rx_entry(rvu, pfvf, entry, req, target, pf_set_vfs_mac); + else + npc_update_tx_entry(rvu, pfvf, entry, req, target); + + /* Default unicast rules do not exist for TX */ + if (is_npc_intf_tx(req->intf)) + goto find_rule; + + if (req->default_rule) { + entry_index = npc_get_nixlf_mcam_index(mcam, target, nixlf, + NIXLF_UCAST_ENTRY); + enable = is_mcam_entry_enabled(rvu, mcam, blkaddr, entry_index); + } + + /* update mcam entry with default unicast rule attributes */ + if (def_ucast_rule && (req->default_rule && req->append)) { + missing_features = (def_ucast_rule->features ^ features) & + def_ucast_rule->features; + if (missing_features) + npc_update_flow(rvu, entry, missing_features, + &def_ucast_rule->packet, + &def_ucast_rule->mask, + &dummy, req->intf, + blkaddr); + installed_features = req->features | missing_features; + } + +find_rule: + rule = rvu_mcam_find_rule(mcam, entry_index); + if (!rule) { + rule = kzalloc(sizeof(*rule), GFP_KERNEL); + if (!rule) + return -ENOMEM; + new = true; + } + + /* allocate new counter if rule has no counter */ + if (!req->default_rule && req->set_cntr && !rule->has_cntr) + rvu_mcam_add_counter_to_rule(rvu, owner, rule, rsp); + + /* if user wants to delete an existing counter for a rule then + * free the counter + */ + if (!req->set_cntr && rule->has_cntr) + rvu_mcam_remove_counter_from_rule(rvu, owner, rule); + + write_req.hdr.pcifunc = owner; + + /* AF owns the default rules so change the owner just to relax + * the checks in rvu_mbox_handler_npc_mcam_write_entry + */ + if (req->default_rule) + write_req.hdr.pcifunc = 0; + + write_req.entry = entry_index; + write_req.intf = req->intf; + write_req.enable_entry = (u8)enable; + /* if counter is available then clear and use it */ + if (req->set_cntr && rule->has_cntr) { + rvu_write64(rvu, blkaddr, NPC_AF_MATCH_STATX(rule->cntr), req->cntr_val); + write_req.set_cntr = 1; + write_req.cntr = rule->cntr; + } + + /* update rule */ + memcpy(&rule->packet, &dummy.packet, sizeof(rule->packet)); + memcpy(&rule->mask, &dummy.mask, sizeof(rule->mask)); + rule->entry = entry_index; + memcpy(&rule->rx_action, &entry->action, sizeof(struct nix_rx_action)); + if (is_npc_intf_tx(req->intf)) + memcpy(&rule->tx_action, &entry->action, + sizeof(struct nix_tx_action)); + rule->vtag_action = entry->vtag_action; + rule->features = installed_features; + rule->default_rule = req->default_rule; + rule->owner = owner; + rule->enable = enable; + rule->chan_mask = write_req.entry_data.kw_mask[0] & NPC_KEX_CHAN_MASK; + rule->chan = write_req.entry_data.kw[0] & NPC_KEX_CHAN_MASK; + rule->chan &= rule->chan_mask; + rule->lxmb = dummy.lxmb; + if (is_npc_intf_tx(req->intf)) + rule->intf = pfvf->nix_tx_intf; + else + rule->intf = pfvf->nix_rx_intf; + + if (new) + rvu_mcam_add_rule(mcam, rule); + if (req->default_rule) + pfvf->def_ucast_rule = rule; + + /* write to mcam entry registers */ + err = rvu_mbox_handler_npc_mcam_write_entry(rvu, &write_req, + &write_rsp); + if (err) { + rvu_mcam_remove_counter_from_rule(rvu, owner, rule); + if (new) { + list_del(&rule->list); + kfree(rule); + } + return err; + } + + /* VF's MAC address is being changed via PF */ + if (pf_set_vfs_mac) { + ether_addr_copy(pfvf->default_mac, req->packet.dmac); + ether_addr_copy(pfvf->mac_addr, req->packet.dmac); + set_bit(PF_SET_VF_MAC, &pfvf->flags); + } + + if (test_bit(PF_SET_VF_CFG, &pfvf->flags) && + req->vtag0_type == NIX_AF_LFX_RX_VTAG_TYPE7) + rule->vfvlan_cfg = true; + + if (is_npc_intf_rx(req->intf) && req->match_id && + (req->op == NIX_RX_ACTIONOP_UCAST || req->op == NIX_RX_ACTIONOP_RSS)) + return rvu_nix_setup_ratelimit_aggr(rvu, req->hdr.pcifunc, + req->index, req->match_id); + + return 0; +} + +int rvu_mbox_handler_npc_install_flow(struct rvu *rvu, + struct npc_install_flow_req *req, + struct npc_install_flow_rsp *rsp) +{ + bool from_vf = !!(req->hdr.pcifunc & RVU_PFVF_FUNC_MASK); + struct rvu_switch *rswitch = &rvu->rswitch; + int blkaddr, nixlf, err; + struct rvu_pfvf *pfvf; + bool pf_set_vfs_mac = false; + bool enable = true; + u16 target; + + blkaddr = rvu_get_blkaddr(rvu, BLKTYPE_NPC, 0); + if (blkaddr < 0) { + dev_err(rvu->dev, "%s: NPC block not implemented\n", __func__); + return NPC_MCAM_INVALID_REQ; + } + + if (!is_npc_interface_valid(rvu, req->intf)) + return NPC_FLOW_INTF_INVALID; + + /* If DMAC is not extracted in MKEX, rules installed by AF + * can rely on L2MB bit set by hardware protocol checker for + * broadcast and multicast addresses. + */ + if (npc_check_field(rvu, blkaddr, NPC_DMAC, req->intf)) + goto process_flow; + + if (is_pffunc_af(req->hdr.pcifunc) && + req->features & BIT_ULL(NPC_DMAC)) { + if (is_unicast_ether_addr(req->packet.dmac)) { + dev_warn(rvu->dev, + "%s: mkex profile does not support ucast flow\n", + __func__); + return NPC_FLOW_NOT_SUPPORTED; + } + + if (!npc_is_field_present(rvu, NPC_LXMB, req->intf)) { + dev_warn(rvu->dev, + "%s: mkex profile does not support bcast/mcast flow", + __func__); + return NPC_FLOW_NOT_SUPPORTED; + } + + /* Modify feature to use LXMB instead of DMAC */ + req->features &= ~BIT_ULL(NPC_DMAC); + req->features |= BIT_ULL(NPC_LXMB); + } + +process_flow: + if (from_vf && req->default_rule) + return NPC_FLOW_VF_PERM_DENIED; + + /* Each PF/VF info is maintained in struct rvu_pfvf. + * rvu_pfvf for the target PF/VF needs to be retrieved + * hence modify pcifunc accordingly. + */ + + /* AF installing for a PF/VF */ + if (!req->hdr.pcifunc) + target = req->vf; + /* PF installing for its VF */ + else if (!from_vf && req->vf) { + target = (req->hdr.pcifunc & ~RVU_PFVF_FUNC_MASK) | req->vf; + pf_set_vfs_mac = req->default_rule && + (req->features & BIT_ULL(NPC_DMAC)); + } + /* msg received from PF/VF */ + else + target = req->hdr.pcifunc; + + /* ignore chan_mask in case pf func is not AF, revisit later */ + if (!is_pffunc_af(req->hdr.pcifunc)) + req->chan_mask = 0xFFF; + + err = npc_check_unsupported_flows(rvu, req->features, req->intf); + if (err) + return NPC_FLOW_NOT_SUPPORTED; + + pfvf = rvu_get_pfvf(rvu, target); + + /* PF installing for its VF */ + if (req->hdr.pcifunc && !from_vf && req->vf) + set_bit(PF_SET_VF_CFG, &pfvf->flags); + + /* update req destination mac addr */ + if ((req->features & BIT_ULL(NPC_DMAC)) && is_npc_intf_rx(req->intf) && + is_zero_ether_addr(req->packet.dmac)) { + ether_addr_copy(req->packet.dmac, pfvf->mac_addr); + eth_broadcast_addr((u8 *)&req->mask.dmac); + } + + /* Proceed if NIXLF is attached or not for TX rules */ + err = nix_get_nixlf(rvu, target, &nixlf, NULL); + if (err && is_npc_intf_rx(req->intf) && !pf_set_vfs_mac) + return NPC_FLOW_NO_NIXLF; + + /* don't enable rule when nixlf not attached or initialized */ + if (!(is_nixlf_attached(rvu, target) && + test_bit(NIXLF_INITIALIZED, &pfvf->flags))) + enable = false; + + /* Packets reaching NPC in Tx path implies that a + * NIXLF is properly setup and transmitting. + * Hence rules can be enabled for Tx. + */ + if (is_npc_intf_tx(req->intf)) + enable = true; + + /* Do not allow requests from uninitialized VFs */ + if (from_vf && !enable) + return NPC_FLOW_VF_NOT_INIT; + + /* PF sets VF mac & VF NIXLF is not attached, update the mac addr */ + if (pf_set_vfs_mac && !enable) { + ether_addr_copy(pfvf->default_mac, req->packet.dmac); + ether_addr_copy(pfvf->mac_addr, req->packet.dmac); + set_bit(PF_SET_VF_MAC, &pfvf->flags); + return 0; + } + + mutex_lock(&rswitch->switch_lock); + err = npc_install_flow(rvu, blkaddr, target, nixlf, pfvf, + req, rsp, enable, pf_set_vfs_mac); + mutex_unlock(&rswitch->switch_lock); + + return err; +} + +static int npc_delete_flow(struct rvu *rvu, struct rvu_npc_mcam_rule *rule, + u16 pcifunc) +{ + struct npc_mcam_ena_dis_entry_req dis_req = { 0 }; + struct msg_rsp dis_rsp; + + if (rule->default_rule) + return 0; + + if (rule->has_cntr) + rvu_mcam_remove_counter_from_rule(rvu, pcifunc, rule); + + dis_req.hdr.pcifunc = pcifunc; + dis_req.entry = rule->entry; + + list_del(&rule->list); + kfree(rule); + + return rvu_mbox_handler_npc_mcam_dis_entry(rvu, &dis_req, &dis_rsp); +} + +int rvu_mbox_handler_npc_delete_flow(struct rvu *rvu, + struct npc_delete_flow_req *req, + struct npc_delete_flow_rsp *rsp) +{ + struct npc_mcam *mcam = &rvu->hw->mcam; + struct rvu_npc_mcam_rule *iter, *tmp; + u16 pcifunc = req->hdr.pcifunc; + struct list_head del_list; + int blkaddr; + + INIT_LIST_HEAD(&del_list); + + mutex_lock(&mcam->lock); + list_for_each_entry_safe(iter, tmp, &mcam->mcam_rules, list) { + if (iter->owner == pcifunc) { + /* All rules */ + if (req->all) { + list_move_tail(&iter->list, &del_list); + /* Range of rules */ + } else if (req->end && iter->entry >= req->start && + iter->entry <= req->end) { + list_move_tail(&iter->list, &del_list); + /* single rule */ + } else if (req->entry == iter->entry) { + blkaddr = rvu_get_blkaddr(rvu, BLKTYPE_NPC, 0); + if (blkaddr) + rsp->cntr_val = rvu_read64(rvu, blkaddr, + NPC_AF_MATCH_STATX(iter->cntr)); + list_move_tail(&iter->list, &del_list); + break; + } + } + } + mutex_unlock(&mcam->lock); + + list_for_each_entry_safe(iter, tmp, &del_list, list) { + u16 entry = iter->entry; + + /* clear the mcam entry target pcifunc */ + mcam->entry2target_pffunc[entry] = 0x0; + if (npc_delete_flow(rvu, iter, pcifunc)) + dev_err(rvu->dev, "rule deletion failed for entry:%u", + entry); + } + + return 0; +} + +static int npc_update_dmac_value(struct rvu *rvu, int npcblkaddr, + struct rvu_npc_mcam_rule *rule, + struct rvu_pfvf *pfvf) +{ + struct npc_mcam_write_entry_req write_req = { 0 }; + struct mcam_entry *entry = &write_req.entry_data; + struct npc_mcam *mcam = &rvu->hw->mcam; + struct msg_rsp rsp; + u8 intf, enable; + int err; + + ether_addr_copy(rule->packet.dmac, pfvf->mac_addr); + + npc_read_mcam_entry(rvu, mcam, npcblkaddr, rule->entry, + entry, &intf, &enable); + + npc_update_entry(rvu, NPC_DMAC, entry, + ether_addr_to_u64(pfvf->mac_addr), 0, + 0xffffffffffffull, 0, intf); + + write_req.hdr.pcifunc = rule->owner; + write_req.entry = rule->entry; + write_req.intf = pfvf->nix_rx_intf; + + mutex_unlock(&mcam->lock); + err = rvu_mbox_handler_npc_mcam_write_entry(rvu, &write_req, &rsp); + mutex_lock(&mcam->lock); + + return err; +} + +void npc_mcam_enable_flows(struct rvu *rvu, u16 target) +{ + struct rvu_pfvf *pfvf = rvu_get_pfvf(rvu, target); + struct rvu_npc_mcam_rule *def_ucast_rule; + struct npc_mcam *mcam = &rvu->hw->mcam; + struct rvu_npc_mcam_rule *rule; + int blkaddr, bank, index; + u64 def_action; + + blkaddr = rvu_get_blkaddr(rvu, BLKTYPE_NPC, 0); + if (blkaddr < 0) + return; + + def_ucast_rule = pfvf->def_ucast_rule; + + mutex_lock(&mcam->lock); + list_for_each_entry(rule, &mcam->mcam_rules, list) { + if (is_npc_intf_rx(rule->intf) && + rule->rx_action.pf_func == target && !rule->enable) { + if (rule->default_rule) { + npc_enable_mcam_entry(rvu, mcam, blkaddr, + rule->entry, true); + rule->enable = true; + continue; + } + + if (rule->vfvlan_cfg) + npc_update_dmac_value(rvu, blkaddr, rule, pfvf); + + if (rule->rx_action.op == NIX_RX_ACTION_DEFAULT) { + if (!def_ucast_rule) + continue; + /* Use default unicast entry action */ + rule->rx_action = def_ucast_rule->rx_action; + def_action = *(u64 *)&def_ucast_rule->rx_action; + bank = npc_get_bank(mcam, rule->entry); + rvu_write64(rvu, blkaddr, + NPC_AF_MCAMEX_BANKX_ACTION + (rule->entry, bank), def_action); + } + + npc_enable_mcam_entry(rvu, mcam, blkaddr, + rule->entry, true); + rule->enable = true; + } + } + + /* Enable MCAM entries installed by PF with target as VF pcifunc */ + for (index = 0; index < mcam->bmap_entries; index++) { + if (mcam->entry2target_pffunc[index] == target) + npc_enable_mcam_entry(rvu, mcam, blkaddr, + index, true); + } + mutex_unlock(&mcam->lock); +} + +void npc_mcam_disable_flows(struct rvu *rvu, u16 target) +{ + struct npc_mcam *mcam = &rvu->hw->mcam; + int blkaddr, index; + + blkaddr = rvu_get_blkaddr(rvu, BLKTYPE_NPC, 0); + if (blkaddr < 0) + return; + + mutex_lock(&mcam->lock); + /* Disable MCAM entries installed by PF with target as VF pcifunc */ + for (index = 0; index < mcam->bmap_entries; index++) { + if (mcam->entry2target_pffunc[index] == target) + npc_enable_mcam_entry(rvu, mcam, blkaddr, + index, false); + } + mutex_unlock(&mcam->lock); +} + +/* single drop on non hit rule starting from 0th index. This an extension + * to RPM mac filter to support more rules. + */ +int npc_install_mcam_drop_rule(struct rvu *rvu, int mcam_idx, u16 *counter_idx, + u64 chan_val, u64 chan_mask, u64 exact_val, u64 exact_mask, + u64 bcast_mcast_val, u64 bcast_mcast_mask) +{ + struct npc_mcam_alloc_counter_req cntr_req = { 0 }; + struct npc_mcam_alloc_counter_rsp cntr_rsp = { 0 }; + struct npc_mcam_write_entry_req req = { 0 }; + struct npc_mcam *mcam = &rvu->hw->mcam; + struct rvu_npc_mcam_rule *rule; + struct msg_rsp rsp; + bool enabled; + int blkaddr; + int err; + + blkaddr = rvu_get_blkaddr(rvu, BLKTYPE_NPC, 0); + if (blkaddr < 0) { + dev_err(rvu->dev, "%s: NPC block not implemented\n", __func__); + return -ENODEV; + } + + /* Bail out if no exact match support */ + if (!rvu_npc_exact_has_match_table(rvu)) { + dev_info(rvu->dev, "%s: No support for exact match feature\n", __func__); + return -EINVAL; + } + + /* If 0th entry is already used, return err */ + enabled = is_mcam_entry_enabled(rvu, mcam, blkaddr, mcam_idx); + if (enabled) { + dev_err(rvu->dev, "%s: failed to add single drop on non hit rule at %d th index\n", + __func__, mcam_idx); + return -EINVAL; + } + + /* Add this entry to mcam rules list */ + rule = kzalloc(sizeof(*rule), GFP_KERNEL); + if (!rule) + return -ENOMEM; + + /* Disable rule by default. Enable rule when first dmac filter is + * installed + */ + rule->enable = false; + rule->chan = chan_val; + rule->chan_mask = chan_mask; + rule->entry = mcam_idx; + rvu_mcam_add_rule(mcam, rule); + + /* Reserve slot 0 */ + npc_mcam_rsrcs_reserve(rvu, blkaddr, mcam_idx); + + /* Allocate counter for this single drop on non hit rule */ + cntr_req.hdr.pcifunc = 0; /* AF request */ + cntr_req.contig = true; + cntr_req.count = 1; + err = rvu_mbox_handler_npc_mcam_alloc_counter(rvu, &cntr_req, &cntr_rsp); + if (err) { + dev_err(rvu->dev, "%s: Err to allocate cntr for drop rule (err=%d)\n", + __func__, err); + return -EFAULT; + } + *counter_idx = cntr_rsp.cntr; + + /* Fill in fields for this mcam entry */ + npc_update_entry(rvu, NPC_EXACT_RESULT, &req.entry_data, exact_val, 0, + exact_mask, 0, NIX_INTF_RX); + npc_update_entry(rvu, NPC_CHAN, &req.entry_data, chan_val, 0, + chan_mask, 0, NIX_INTF_RX); + npc_update_entry(rvu, NPC_LXMB, &req.entry_data, bcast_mcast_val, 0, + bcast_mcast_mask, 0, NIX_INTF_RX); + + req.intf = NIX_INTF_RX; + req.set_cntr = true; + req.cntr = cntr_rsp.cntr; + req.entry = mcam_idx; + + err = rvu_mbox_handler_npc_mcam_write_entry(rvu, &req, &rsp); + if (err) { + dev_err(rvu->dev, "%s: Installation of single drop on non hit rule at %d failed\n", + __func__, mcam_idx); + return err; + } + + dev_err(rvu->dev, "%s: Installed single drop on non hit rule at %d, cntr=%d\n", + __func__, mcam_idx, req.cntr); + + /* disable entry at Bank 0, index 0 */ + npc_enable_mcam_entry(rvu, mcam, blkaddr, mcam_idx, false); + + return 0; +} + +int rvu_mbox_handler_npc_get_field_status(struct rvu *rvu, + struct npc_get_field_status_req *req, + struct npc_get_field_status_rsp *rsp) +{ + int blkaddr; + + blkaddr = rvu_get_blkaddr(rvu, BLKTYPE_NPC, 0); + if (blkaddr < 0) + return NPC_MCAM_INVALID_REQ; + + if (!is_npc_interface_valid(rvu, req->intf)) + return NPC_FLOW_INTF_INVALID; + + if (npc_check_field(rvu, blkaddr, req->field, req->intf)) + rsp->enable = 1; + + return 0; +} diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rvu_npc_fs.h b/drivers/net/ethernet/marvell/octeontx2/af/rvu_npc_fs.h new file mode 100644 index 000000000..3f5c9042d --- /dev/null +++ b/drivers/net/ethernet/marvell/octeontx2/af/rvu_npc_fs.h @@ -0,0 +1,21 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* Marvell RVU Admin Function driver + * + * Copyright (C) 2022 Marvell. + * + */ + +#ifndef __RVU_NPC_FS_H +#define __RVU_NPC_FS_H + +#define IPV6_WORDS 4 +#define NPC_BYTESM GENMASK_ULL(19, 16) +#define NPC_HDR_OFFSET GENMASK_ULL(15, 8) +#define NPC_KEY_OFFSET GENMASK_ULL(5, 0) +#define NPC_LDATA_EN BIT_ULL(7) + +void npc_update_entry(struct rvu *rvu, enum key_fields type, + struct mcam_entry *entry, u64 val_lo, + u64 val_hi, u64 mask_lo, u64 mask_hi, u8 intf); + +#endif /* RVU_NPC_FS_H */ diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rvu_npc_hash.c b/drivers/net/ethernet/marvell/octeontx2/af/rvu_npc_hash.c new file mode 100644 index 000000000..54e0dfdc9 --- /dev/null +++ b/drivers/net/ethernet/marvell/octeontx2/af/rvu_npc_hash.c @@ -0,0 +1,2053 @@ +// SPDX-License-Identifier: GPL-2.0 +/* Marvell RVU Admin Function driver + * + * Copyright (C) 2022 Marvell. + * + */ + +#include <linux/bitfield.h> +#include <linux/module.h> +#include <linux/pci.h> +#include <linux/firmware.h> +#include <linux/stddef.h> +#include <linux/debugfs.h> + +#include "rvu_struct.h" +#include "rvu_reg.h" +#include "rvu.h" +#include "npc.h" +#include "cgx.h" +#include "rvu_npc_fs.h" +#include "rvu_npc_hash.h" + +static u64 rvu_npc_wide_extract(const u64 input[], size_t start_bit, + size_t width_bits) +{ + const u64 mask = ~(u64)((~(__uint128_t)0) << width_bits); + const size_t msb = start_bit + width_bits - 1; + const size_t lword = start_bit >> 6; + const size_t uword = msb >> 6; + size_t lbits; + u64 hi, lo; + + if (lword == uword) + return (input[lword] >> (start_bit & 63)) & mask; + + lbits = 64 - (start_bit & 63); + hi = input[uword]; + lo = (input[lword] >> (start_bit & 63)); + return ((hi << lbits) | lo) & mask; +} + +static void rvu_npc_lshift_key(u64 *key, size_t key_bit_len) +{ + u64 prev_orig_word = 0; + u64 cur_orig_word = 0; + size_t extra = key_bit_len % 64; + size_t max_idx = key_bit_len / 64; + size_t i; + + if (extra) + max_idx++; + + for (i = 0; i < max_idx; i++) { + cur_orig_word = key[i]; + key[i] = key[i] << 1; + key[i] |= ((prev_orig_word >> 63) & 0x1); + prev_orig_word = cur_orig_word; + } +} + +static u32 rvu_npc_toeplitz_hash(const u64 *data, u64 *key, size_t data_bit_len, + size_t key_bit_len) +{ + u32 hash_out = 0; + u64 temp_data = 0; + int i; + + for (i = data_bit_len - 1; i >= 0; i--) { + temp_data = (data[i / 64]); + temp_data = temp_data >> (i % 64); + temp_data &= 0x1; + if (temp_data) + hash_out ^= (u32)(rvu_npc_wide_extract(key, key_bit_len - 32, 32)); + + rvu_npc_lshift_key(key, key_bit_len); + } + + return hash_out; +} + +u32 npc_field_hash_calc(u64 *ldata, struct npc_get_field_hash_info_rsp rsp, + u8 intf, u8 hash_idx) +{ + u64 hash_key[3]; + u64 data_padded[2]; + u32 field_hash; + + hash_key[0] = rsp.secret_key[1] << 31; + hash_key[0] |= rsp.secret_key[2]; + hash_key[1] = rsp.secret_key[1] >> 33; + hash_key[1] |= rsp.secret_key[0] << 31; + hash_key[2] = rsp.secret_key[0] >> 33; + + data_padded[0] = rsp.hash_mask[intf][hash_idx][0] & ldata[0]; + data_padded[1] = rsp.hash_mask[intf][hash_idx][1] & ldata[1]; + field_hash = rvu_npc_toeplitz_hash(data_padded, hash_key, 128, 159); + + field_hash &= FIELD_GET(GENMASK(63, 32), rsp.hash_ctrl[intf][hash_idx]); + field_hash += FIELD_GET(GENMASK(31, 0), rsp.hash_ctrl[intf][hash_idx]); + return field_hash; +} + +static u64 npc_update_use_hash(struct rvu *rvu, int blkaddr, + u8 intf, int lid, int lt, int ld) +{ + u8 hdr, key; + u64 cfg; + + cfg = rvu_read64(rvu, blkaddr, NPC_AF_INTFX_LIDX_LTX_LDX_CFG(intf, lid, lt, ld)); + hdr = FIELD_GET(NPC_HDR_OFFSET, cfg); + key = FIELD_GET(NPC_KEY_OFFSET, cfg); + + /* Update use_hash(bit-20) to 'true' and + * bytesm1(bit-16:19) to '0x3' in KEX_LD_CFG + */ + cfg = KEX_LD_CFG_USE_HASH(0x1, 0x03, + hdr, 0x1, 0x0, key); + + return cfg; +} + +static void npc_program_mkex_hash_rx(struct rvu *rvu, int blkaddr, + u8 intf) +{ + struct npc_mcam_kex_hash *mkex_hash = rvu->kpu.mkex_hash; + int lid, lt, ld, hash_cnt = 0; + + if (is_npc_intf_tx(intf)) + return; + + /* Program HASH_CFG */ + for (lid = 0; lid < NPC_MAX_LID; lid++) { + for (lt = 0; lt < NPC_MAX_LT; lt++) { + for (ld = 0; ld < NPC_MAX_LD; ld++) { + if (mkex_hash->lid_lt_ld_hash_en[intf][lid][lt][ld]) { + u64 cfg; + + if (hash_cnt == NPC_MAX_HASH) + return; + + cfg = npc_update_use_hash(rvu, blkaddr, + intf, lid, lt, ld); + /* Set updated KEX configuration */ + SET_KEX_LD(intf, lid, lt, ld, cfg); + /* Set HASH configuration */ + SET_KEX_LD_HASH(intf, ld, + mkex_hash->hash[intf][ld]); + SET_KEX_LD_HASH_MASK(intf, ld, 0, + mkex_hash->hash_mask[intf][ld][0]); + SET_KEX_LD_HASH_MASK(intf, ld, 1, + mkex_hash->hash_mask[intf][ld][1]); + SET_KEX_LD_HASH_CTRL(intf, ld, + mkex_hash->hash_ctrl[intf][ld]); + + hash_cnt++; + } + } + } + } +} + +static void npc_program_mkex_hash_tx(struct rvu *rvu, int blkaddr, + u8 intf) +{ + struct npc_mcam_kex_hash *mkex_hash = rvu->kpu.mkex_hash; + int lid, lt, ld, hash_cnt = 0; + + if (is_npc_intf_rx(intf)) + return; + + /* Program HASH_CFG */ + for (lid = 0; lid < NPC_MAX_LID; lid++) { + for (lt = 0; lt < NPC_MAX_LT; lt++) { + for (ld = 0; ld < NPC_MAX_LD; ld++) + if (mkex_hash->lid_lt_ld_hash_en[intf][lid][lt][ld]) { + u64 cfg; + + if (hash_cnt == NPC_MAX_HASH) + return; + + cfg = npc_update_use_hash(rvu, blkaddr, + intf, lid, lt, ld); + /* Set updated KEX configuration */ + SET_KEX_LD(intf, lid, lt, ld, cfg); + /* Set HASH configuration */ + SET_KEX_LD_HASH(intf, ld, + mkex_hash->hash[intf][ld]); + SET_KEX_LD_HASH_MASK(intf, ld, 0, + mkex_hash->hash_mask[intf][ld][0]); + SET_KEX_LD_HASH_MASK(intf, ld, 1, + mkex_hash->hash_mask[intf][ld][1]); + SET_KEX_LD_HASH_CTRL(intf, ld, + mkex_hash->hash_ctrl[intf][ld]); + hash_cnt++; + } + } + } +} + +void npc_config_secret_key(struct rvu *rvu, int blkaddr) +{ + struct hw_cap *hwcap = &rvu->hw->cap; + struct rvu_hwinfo *hw = rvu->hw; + u8 intf; + + if (!hwcap->npc_hash_extract) + return; + + for (intf = 0; intf < hw->npc_intfs; intf++) { + rvu_write64(rvu, blkaddr, NPC_AF_INTFX_SECRET_KEY0(intf), + RVU_NPC_HASH_SECRET_KEY0); + rvu_write64(rvu, blkaddr, NPC_AF_INTFX_SECRET_KEY1(intf), + RVU_NPC_HASH_SECRET_KEY1); + rvu_write64(rvu, blkaddr, NPC_AF_INTFX_SECRET_KEY2(intf), + RVU_NPC_HASH_SECRET_KEY2); + } +} + +void npc_program_mkex_hash(struct rvu *rvu, int blkaddr) +{ + struct npc_mcam_kex_hash *mh = rvu->kpu.mkex_hash; + struct hw_cap *hwcap = &rvu->hw->cap; + u8 intf, ld, hdr_offset, byte_len; + struct rvu_hwinfo *hw = rvu->hw; + u64 cfg; + + /* Check if hardware supports hash extraction */ + if (!hwcap->npc_hash_extract) + return; + + /* Check if IPv6 source/destination address + * should be hash enabled. + * Hashing reduces 128bit SIP/DIP fields to 32bit + * so that 224 bit X2 key can be used for IPv6 based filters as well, + * which in turn results in more number of MCAM entries available for + * use. + * + * Hashing of IPV6 SIP/DIP is enabled in below scenarios + * 1. If the silicon variant supports hashing feature + * 2. If the number of bytes of IP addr being extracted is 4 bytes ie + * 32bit. The assumption here is that if user wants 8bytes of LSB of + * IP addr or full 16 bytes then his intention is not to use 32bit + * hash. + */ + for (intf = 0; intf < hw->npc_intfs; intf++) { + for (ld = 0; ld < NPC_MAX_LD; ld++) { + cfg = rvu_read64(rvu, blkaddr, + NPC_AF_INTFX_LIDX_LTX_LDX_CFG(intf, + NPC_LID_LC, + NPC_LT_LC_IP6, + ld)); + hdr_offset = FIELD_GET(NPC_HDR_OFFSET, cfg); + byte_len = FIELD_GET(NPC_BYTESM, cfg); + /* Hashing of IPv6 source/destination address should be + * enabled if, + * hdr_offset == 8 (offset of source IPv6 address) or + * hdr_offset == 24 (offset of destination IPv6) + * address) and the number of byte to be + * extracted is 4. As per hardware configuration + * byte_len should be == actual byte_len - 1. + * Hence byte_len is checked against 3 but nor 4. + */ + if ((hdr_offset == 8 || hdr_offset == 24) && byte_len == 3) + mh->lid_lt_ld_hash_en[intf][NPC_LID_LC][NPC_LT_LC_IP6][ld] = true; + } + } + + /* Update hash configuration if the field is hash enabled */ + for (intf = 0; intf < hw->npc_intfs; intf++) { + npc_program_mkex_hash_rx(rvu, blkaddr, intf); + npc_program_mkex_hash_tx(rvu, blkaddr, intf); + } +} + +void npc_update_field_hash(struct rvu *rvu, u8 intf, + struct mcam_entry *entry, + int blkaddr, + u64 features, + struct flow_msg *pkt, + struct flow_msg *mask, + struct flow_msg *opkt, + struct flow_msg *omask) +{ + struct npc_mcam_kex_hash *mkex_hash = rvu->kpu.mkex_hash; + struct npc_get_field_hash_info_req req; + struct npc_get_field_hash_info_rsp rsp; + u64 ldata[2], cfg; + u32 field_hash; + u8 hash_idx; + + if (!rvu->hw->cap.npc_hash_extract) { + dev_dbg(rvu->dev, "%s: Field hash extract feature is not supported\n", __func__); + return; + } + + req.intf = intf; + rvu_mbox_handler_npc_get_field_hash_info(rvu, &req, &rsp); + + for (hash_idx = 0; hash_idx < NPC_MAX_HASH; hash_idx++) { + cfg = rvu_read64(rvu, blkaddr, NPC_AF_INTFX_HASHX_CFG(intf, hash_idx)); + if ((cfg & BIT_ULL(11)) && (cfg & BIT_ULL(12))) { + u8 lid = (cfg & GENMASK_ULL(10, 8)) >> 8; + u8 ltype = (cfg & GENMASK_ULL(7, 4)) >> 4; + u8 ltype_mask = cfg & GENMASK_ULL(3, 0); + + if (mkex_hash->lid_lt_ld_hash_en[intf][lid][ltype][hash_idx]) { + switch (ltype & ltype_mask) { + /* If hash extract enabled is supported for IPv6 then + * 128 bit IPv6 source and destination addressed + * is hashed to 32 bit value. + */ + case NPC_LT_LC_IP6: + /* ld[0] == hash_idx[0] == Source IPv6 + * ld[1] == hash_idx[1] == Destination IPv6 + */ + if ((features & BIT_ULL(NPC_SIP_IPV6)) && !hash_idx) { + u32 src_ip[IPV6_WORDS]; + + be32_to_cpu_array(src_ip, pkt->ip6src, IPV6_WORDS); + ldata[1] = (u64)src_ip[0] << 32 | src_ip[1]; + ldata[0] = (u64)src_ip[2] << 32 | src_ip[3]; + field_hash = npc_field_hash_calc(ldata, + rsp, + intf, + hash_idx); + npc_update_entry(rvu, NPC_SIP_IPV6, entry, + field_hash, 0, + GENMASK(31, 0), 0, intf); + memcpy(&opkt->ip6src, &pkt->ip6src, + sizeof(pkt->ip6src)); + memcpy(&omask->ip6src, &mask->ip6src, + sizeof(mask->ip6src)); + } else if ((features & BIT_ULL(NPC_DIP_IPV6)) && hash_idx) { + u32 dst_ip[IPV6_WORDS]; + + be32_to_cpu_array(dst_ip, pkt->ip6dst, IPV6_WORDS); + ldata[1] = (u64)dst_ip[0] << 32 | dst_ip[1]; + ldata[0] = (u64)dst_ip[2] << 32 | dst_ip[3]; + field_hash = npc_field_hash_calc(ldata, + rsp, + intf, + hash_idx); + npc_update_entry(rvu, NPC_DIP_IPV6, entry, + field_hash, 0, + GENMASK(31, 0), 0, intf); + memcpy(&opkt->ip6dst, &pkt->ip6dst, + sizeof(pkt->ip6dst)); + memcpy(&omask->ip6dst, &mask->ip6dst, + sizeof(mask->ip6dst)); + } + + break; + } + } + } + } +} + +int rvu_mbox_handler_npc_get_field_hash_info(struct rvu *rvu, + struct npc_get_field_hash_info_req *req, + struct npc_get_field_hash_info_rsp *rsp) +{ + u64 *secret_key = rsp->secret_key; + u8 intf = req->intf; + int i, j, blkaddr; + + blkaddr = rvu_get_blkaddr(rvu, BLKTYPE_NPC, 0); + if (blkaddr < 0) { + dev_err(rvu->dev, "%s: NPC block not implemented\n", __func__); + return -EINVAL; + } + + secret_key[0] = rvu_read64(rvu, blkaddr, NPC_AF_INTFX_SECRET_KEY0(intf)); + secret_key[1] = rvu_read64(rvu, blkaddr, NPC_AF_INTFX_SECRET_KEY1(intf)); + secret_key[2] = rvu_read64(rvu, blkaddr, NPC_AF_INTFX_SECRET_KEY2(intf)); + + for (i = 0; i < NPC_MAX_HASH; i++) { + for (j = 0; j < NPC_MAX_HASH_MASK; j++) { + rsp->hash_mask[NIX_INTF_RX][i][j] = + GET_KEX_LD_HASH_MASK(NIX_INTF_RX, i, j); + rsp->hash_mask[NIX_INTF_TX][i][j] = + GET_KEX_LD_HASH_MASK(NIX_INTF_TX, i, j); + } + } + + for (i = 0; i < NPC_MAX_INTF; i++) + for (j = 0; j < NPC_MAX_HASH; j++) + rsp->hash_ctrl[i][j] = GET_KEX_LD_HASH_CTRL(i, j); + + return 0; +} + +/** + * rvu_npc_exact_mac2u64 - utility function to convert mac address to u64. + * @mac_addr: MAC address. + * Return: mdata for exact match table. + */ +static u64 rvu_npc_exact_mac2u64(u8 *mac_addr) +{ + u64 mac = 0; + int index; + + for (index = ETH_ALEN - 1; index >= 0; index--) + mac |= ((u64)*mac_addr++) << (8 * index); + + return mac; +} + +/** + * rvu_exact_prepare_mdata - Make mdata for mcam entry + * @mac: MAC address + * @chan: Channel number. + * @ctype: Channel Type. + * @mask: LDATA mask. + * Return: Meta data + */ +static u64 rvu_exact_prepare_mdata(u8 *mac, u16 chan, u16 ctype, u64 mask) +{ + u64 ldata = rvu_npc_exact_mac2u64(mac); + + /* Please note that mask is 48bit which excludes chan and ctype. + * Increase mask bits if we need to include them as well. + */ + ldata |= ((u64)chan << 48); + ldata |= ((u64)ctype << 60); + ldata &= mask; + ldata = ldata << 2; + + return ldata; +} + +/** + * rvu_exact_calculate_hash - calculate hash index to mem table. + * @rvu: resource virtualization unit. + * @chan: Channel number + * @ctype: Channel type. + * @mac: MAC address + * @mask: HASH mask. + * @table_depth: Depth of table. + * Return: Hash value + */ +static u32 rvu_exact_calculate_hash(struct rvu *rvu, u16 chan, u16 ctype, u8 *mac, + u64 mask, u32 table_depth) +{ + struct npc_exact_table *table = rvu->hw->table; + u64 hash_key[2]; + u64 key_in[2]; + u64 ldata; + u32 hash; + + key_in[0] = RVU_NPC_HASH_SECRET_KEY0; + key_in[1] = RVU_NPC_HASH_SECRET_KEY2; + + hash_key[0] = key_in[0] << 31; + hash_key[0] |= key_in[1]; + hash_key[1] = key_in[0] >> 33; + + ldata = rvu_exact_prepare_mdata(mac, chan, ctype, mask); + + dev_dbg(rvu->dev, "%s: ldata=0x%llx hash_key0=0x%llx hash_key2=0x%llx\n", __func__, + ldata, hash_key[1], hash_key[0]); + hash = rvu_npc_toeplitz_hash(&ldata, (u64 *)hash_key, 64, 95); + + hash &= table->mem_table.hash_mask; + hash += table->mem_table.hash_offset; + dev_dbg(rvu->dev, "%s: hash=%x\n", __func__, hash); + + return hash; +} + +/** + * rvu_npc_exact_alloc_mem_table_entry - find free entry in 4 way table. + * @rvu: resource virtualization unit. + * @way: Indicate way to table. + * @index: Hash index to 4 way table. + * @hash: Hash value. + * + * Searches 4 way table using hash index. Returns 0 on success. + * Return: 0 upon success. + */ +static int rvu_npc_exact_alloc_mem_table_entry(struct rvu *rvu, u8 *way, + u32 *index, unsigned int hash) +{ + struct npc_exact_table *table; + int depth, i; + + table = rvu->hw->table; + depth = table->mem_table.depth; + + /* Check all the 4 ways for a free slot. */ + mutex_lock(&table->lock); + for (i = 0; i < table->mem_table.ways; i++) { + if (test_bit(hash + i * depth, table->mem_table.bmap)) + continue; + + set_bit(hash + i * depth, table->mem_table.bmap); + mutex_unlock(&table->lock); + + dev_dbg(rvu->dev, "%s: mem table entry alloc success (way=%d index=%d)\n", + __func__, i, hash); + + *way = i; + *index = hash; + return 0; + } + mutex_unlock(&table->lock); + + dev_dbg(rvu->dev, "%s: No space in 4 way exact way, weight=%u\n", __func__, + bitmap_weight(table->mem_table.bmap, table->mem_table.depth)); + return -ENOSPC; +} + +/** + * rvu_npc_exact_free_id - Free seq id from bitmat. + * @rvu: Resource virtualization unit. + * @seq_id: Sequence identifier to be freed. + */ +static void rvu_npc_exact_free_id(struct rvu *rvu, u32 seq_id) +{ + struct npc_exact_table *table; + + table = rvu->hw->table; + mutex_lock(&table->lock); + clear_bit(seq_id, table->id_bmap); + mutex_unlock(&table->lock); + dev_dbg(rvu->dev, "%s: freed id %d\n", __func__, seq_id); +} + +/** + * rvu_npc_exact_alloc_id - Alloc seq id from bitmap. + * @rvu: Resource virtualization unit. + * @seq_id: Sequence identifier. + * Return: True or false. + */ +static bool rvu_npc_exact_alloc_id(struct rvu *rvu, u32 *seq_id) +{ + struct npc_exact_table *table; + u32 idx; + + table = rvu->hw->table; + + mutex_lock(&table->lock); + idx = find_first_zero_bit(table->id_bmap, table->tot_ids); + if (idx == table->tot_ids) { + mutex_unlock(&table->lock); + dev_err(rvu->dev, "%s: No space in id bitmap (%d)\n", + __func__, bitmap_weight(table->id_bmap, table->tot_ids)); + + return false; + } + + /* Mark bit map to indicate that slot is used.*/ + set_bit(idx, table->id_bmap); + mutex_unlock(&table->lock); + + *seq_id = idx; + dev_dbg(rvu->dev, "%s: Allocated id (%d)\n", __func__, *seq_id); + + return true; +} + +/** + * rvu_npc_exact_alloc_cam_table_entry - find free slot in fully associative table. + * @rvu: resource virtualization unit. + * @index: Index to exact CAM table. + * Return: 0 upon success; else error number. + */ +static int rvu_npc_exact_alloc_cam_table_entry(struct rvu *rvu, int *index) +{ + struct npc_exact_table *table; + u32 idx; + + table = rvu->hw->table; + + mutex_lock(&table->lock); + idx = find_first_zero_bit(table->cam_table.bmap, table->cam_table.depth); + if (idx == table->cam_table.depth) { + mutex_unlock(&table->lock); + dev_info(rvu->dev, "%s: No space in exact cam table, weight=%u\n", __func__, + bitmap_weight(table->cam_table.bmap, table->cam_table.depth)); + return -ENOSPC; + } + + /* Mark bit map to indicate that slot is used.*/ + set_bit(idx, table->cam_table.bmap); + mutex_unlock(&table->lock); + + *index = idx; + dev_dbg(rvu->dev, "%s: cam table entry alloc success (index=%d)\n", + __func__, idx); + return 0; +} + +/** + * rvu_exact_prepare_table_entry - Data for exact match table entry. + * @rvu: Resource virtualization unit. + * @enable: Enable/Disable entry + * @ctype: Software defined channel type. Currently set as 0. + * @chan: Channel number. + * @mac_addr: Destination mac address. + * Return: mdata for exact match table. + */ +static u64 rvu_exact_prepare_table_entry(struct rvu *rvu, bool enable, + u8 ctype, u16 chan, u8 *mac_addr) + +{ + u64 ldata = rvu_npc_exact_mac2u64(mac_addr); + + /* Enable or disable */ + u64 mdata = FIELD_PREP(GENMASK_ULL(63, 63), enable ? 1 : 0); + + /* Set Ctype */ + mdata |= FIELD_PREP(GENMASK_ULL(61, 60), ctype); + + /* Set chan */ + mdata |= FIELD_PREP(GENMASK_ULL(59, 48), chan); + + /* MAC address */ + mdata |= FIELD_PREP(GENMASK_ULL(47, 0), ldata); + + return mdata; +} + +/** + * rvu_exact_config_secret_key - Configure secret key. + * @rvu: Resource virtualization unit. + */ +static void rvu_exact_config_secret_key(struct rvu *rvu) +{ + int blkaddr; + + blkaddr = rvu_get_blkaddr(rvu, BLKTYPE_NPC, 0); + rvu_write64(rvu, blkaddr, NPC_AF_INTFX_EXACT_SECRET0(NIX_INTF_RX), + RVU_NPC_HASH_SECRET_KEY0); + + rvu_write64(rvu, blkaddr, NPC_AF_INTFX_EXACT_SECRET1(NIX_INTF_RX), + RVU_NPC_HASH_SECRET_KEY1); + + rvu_write64(rvu, blkaddr, NPC_AF_INTFX_EXACT_SECRET2(NIX_INTF_RX), + RVU_NPC_HASH_SECRET_KEY2); +} + +/** + * rvu_exact_config_search_key - Configure search key + * @rvu: Resource virtualization unit. + */ +static void rvu_exact_config_search_key(struct rvu *rvu) +{ + int blkaddr; + u64 reg_val; + + blkaddr = rvu_get_blkaddr(rvu, BLKTYPE_NPC, 0); + + /* HDR offset */ + reg_val = FIELD_PREP(GENMASK_ULL(39, 32), 0); + + /* BYTESM1, number of bytes - 1 */ + reg_val |= FIELD_PREP(GENMASK_ULL(18, 16), ETH_ALEN - 1); + + /* Enable LID and set LID to NPC_LID_LA */ + reg_val |= FIELD_PREP(GENMASK_ULL(11, 11), 1); + reg_val |= FIELD_PREP(GENMASK_ULL(10, 8), NPC_LID_LA); + + /* Clear layer type based extraction */ + + /* Disable LT_EN */ + reg_val |= FIELD_PREP(GENMASK_ULL(12, 12), 0); + + /* Set LTYPE_MATCH to 0 */ + reg_val |= FIELD_PREP(GENMASK_ULL(7, 4), 0); + + /* Set LTYPE_MASK to 0 */ + reg_val |= FIELD_PREP(GENMASK_ULL(3, 0), 0); + + rvu_write64(rvu, blkaddr, NPC_AF_INTFX_EXACT_CFG(NIX_INTF_RX), reg_val); +} + +/** + * rvu_exact_config_result_ctrl - Set exact table hash control + * @rvu: Resource virtualization unit. + * @depth: Depth of Exact match table. + * + * Sets mask and offset for hash for mem table. + */ +static void rvu_exact_config_result_ctrl(struct rvu *rvu, uint32_t depth) +{ + int blkaddr; + u64 reg = 0; + + blkaddr = rvu_get_blkaddr(rvu, BLKTYPE_NPC, 0); + + /* Set mask. Note that depth is a power of 2 */ + rvu->hw->table->mem_table.hash_mask = (depth - 1); + reg |= FIELD_PREP(GENMASK_ULL(42, 32), (depth - 1)); + + /* Set offset as 0 */ + rvu->hw->table->mem_table.hash_offset = 0; + reg |= FIELD_PREP(GENMASK_ULL(10, 0), 0); + + /* Set reg for RX */ + rvu_write64(rvu, blkaddr, NPC_AF_INTFX_EXACT_RESULT_CTL(NIX_INTF_RX), reg); + /* Store hash mask and offset for s/w algorithm */ +} + +/** + * rvu_exact_config_table_mask - Set exact table mask. + * @rvu: Resource virtualization unit. + */ +static void rvu_exact_config_table_mask(struct rvu *rvu) +{ + int blkaddr; + u64 mask = 0; + + blkaddr = rvu_get_blkaddr(rvu, BLKTYPE_NPC, 0); + + /* Don't use Ctype */ + mask |= FIELD_PREP(GENMASK_ULL(61, 60), 0); + + /* Set chan */ + mask |= GENMASK_ULL(59, 48); + + /* Full ldata */ + mask |= GENMASK_ULL(47, 0); + + /* Store mask for s/w hash calcualtion */ + rvu->hw->table->mem_table.mask = mask; + + /* Set mask for RX.*/ + rvu_write64(rvu, blkaddr, NPC_AF_INTFX_EXACT_MASK(NIX_INTF_RX), mask); +} + +/** + * rvu_npc_exact_get_max_entries - Get total number of entries in table. + * @rvu: resource virtualization unit. + * Return: Maximum table entries possible. + */ +u32 rvu_npc_exact_get_max_entries(struct rvu *rvu) +{ + struct npc_exact_table *table; + + table = rvu->hw->table; + return table->tot_ids; +} + +/** + * rvu_npc_exact_has_match_table - Checks support for exact match. + * @rvu: resource virtualization unit. + * Return: True if exact match table is supported/enabled. + */ +bool rvu_npc_exact_has_match_table(struct rvu *rvu) +{ + return rvu->hw->cap.npc_exact_match_enabled; +} + +/** + * __rvu_npc_exact_find_entry_by_seq_id - find entry by id + * @rvu: resource virtualization unit. + * @seq_id: Sequence identifier. + * + * Caller should acquire the lock. + * Return: Pointer to table entry. + */ +static struct npc_exact_table_entry * +__rvu_npc_exact_find_entry_by_seq_id(struct rvu *rvu, u32 seq_id) +{ + struct npc_exact_table *table = rvu->hw->table; + struct npc_exact_table_entry *entry = NULL; + struct list_head *lhead; + + lhead = &table->lhead_gbl; + + /* traverse to find the matching entry */ + list_for_each_entry(entry, lhead, glist) { + if (entry->seq_id != seq_id) + continue; + + return entry; + } + + return NULL; +} + +/** + * rvu_npc_exact_add_to_list - Add entry to list + * @rvu: resource virtualization unit. + * @opc_type: OPCODE to select MEM/CAM table. + * @ways: MEM table ways. + * @index: Index in MEM/CAM table. + * @cgx_id: CGX identifier. + * @lmac_id: LMAC identifier. + * @mac_addr: MAC address. + * @chan: Channel number. + * @ctype: Channel Type. + * @seq_id: Sequence identifier + * @cmd: True if function is called by ethtool cmd + * @mcam_idx: NPC mcam index of DMAC entry in NPC mcam. + * @pcifunc: pci function + * Return: 0 upon success. + */ +static int rvu_npc_exact_add_to_list(struct rvu *rvu, enum npc_exact_opc_type opc_type, u8 ways, + u32 index, u8 cgx_id, u8 lmac_id, u8 *mac_addr, u16 chan, + u8 ctype, u32 *seq_id, bool cmd, u32 mcam_idx, u16 pcifunc) +{ + struct npc_exact_table_entry *entry, *tmp, *iter; + struct npc_exact_table *table = rvu->hw->table; + struct list_head *lhead, *pprev; + + WARN_ON(ways >= NPC_EXACT_TBL_MAX_WAYS); + + if (!rvu_npc_exact_alloc_id(rvu, seq_id)) { + dev_err(rvu->dev, "%s: Generate seq id failed\n", __func__); + return -EFAULT; + } + + entry = kmalloc(sizeof(*entry), GFP_KERNEL); + if (!entry) { + rvu_npc_exact_free_id(rvu, *seq_id); + dev_err(rvu->dev, "%s: Memory allocation failed\n", __func__); + return -ENOMEM; + } + + mutex_lock(&table->lock); + switch (opc_type) { + case NPC_EXACT_OPC_CAM: + lhead = &table->lhead_cam_tbl_entry; + table->cam_tbl_entry_cnt++; + break; + + case NPC_EXACT_OPC_MEM: + lhead = &table->lhead_mem_tbl_entry[ways]; + table->mem_tbl_entry_cnt++; + break; + + default: + mutex_unlock(&table->lock); + kfree(entry); + rvu_npc_exact_free_id(rvu, *seq_id); + + dev_err(rvu->dev, "%s: Unknown opc type%d\n", __func__, opc_type); + return -EINVAL; + } + + /* Add to global list */ + INIT_LIST_HEAD(&entry->glist); + list_add_tail(&entry->glist, &table->lhead_gbl); + INIT_LIST_HEAD(&entry->list); + entry->index = index; + entry->ways = ways; + entry->opc_type = opc_type; + + entry->pcifunc = pcifunc; + + ether_addr_copy(entry->mac, mac_addr); + entry->chan = chan; + entry->ctype = ctype; + entry->cgx_id = cgx_id; + entry->lmac_id = lmac_id; + + entry->seq_id = *seq_id; + + entry->mcam_idx = mcam_idx; + entry->cmd = cmd; + + pprev = lhead; + + /* Insert entry in ascending order of index */ + list_for_each_entry_safe(iter, tmp, lhead, list) { + if (index < iter->index) + break; + + pprev = &iter->list; + } + + /* Add to each table list */ + list_add(&entry->list, pprev); + mutex_unlock(&table->lock); + return 0; +} + +/** + * rvu_npc_exact_mem_table_write - Wrapper for register write + * @rvu: resource virtualization unit. + * @blkaddr: Block address + * @ways: ways for MEM table. + * @index: Index in MEM + * @mdata: Meta data to be written to register. + */ +static void rvu_npc_exact_mem_table_write(struct rvu *rvu, int blkaddr, u8 ways, + u32 index, u64 mdata) +{ + rvu_write64(rvu, blkaddr, NPC_AF_EXACT_MEM_ENTRY(ways, index), mdata); +} + +/** + * rvu_npc_exact_cam_table_write - Wrapper for register write + * @rvu: resource virtualization unit. + * @blkaddr: Block address + * @index: Index in MEM + * @mdata: Meta data to be written to register. + */ +static void rvu_npc_exact_cam_table_write(struct rvu *rvu, int blkaddr, + u32 index, u64 mdata) +{ + rvu_write64(rvu, blkaddr, NPC_AF_EXACT_CAM_ENTRY(index), mdata); +} + +/** + * rvu_npc_exact_dealloc_table_entry - dealloc table entry + * @rvu: resource virtualization unit. + * @opc_type: OPCODE for selection of table(MEM or CAM) + * @ways: ways if opc_type is MEM table. + * @index: Index of MEM or CAM table. + * Return: 0 upon success. + */ +static int rvu_npc_exact_dealloc_table_entry(struct rvu *rvu, enum npc_exact_opc_type opc_type, + u8 ways, u32 index) +{ + int blkaddr = rvu_get_blkaddr(rvu, BLKTYPE_NPC, 0); + struct npc_exact_table *table; + u8 null_dmac[6] = { 0 }; + int depth; + + /* Prepare entry with all fields set to zero */ + u64 null_mdata = rvu_exact_prepare_table_entry(rvu, false, 0, 0, null_dmac); + + table = rvu->hw->table; + depth = table->mem_table.depth; + + mutex_lock(&table->lock); + + switch (opc_type) { + case NPC_EXACT_OPC_CAM: + + /* Check whether entry is used already */ + if (!test_bit(index, table->cam_table.bmap)) { + mutex_unlock(&table->lock); + dev_err(rvu->dev, "%s: Trying to free an unused entry ways=%d index=%d\n", + __func__, ways, index); + return -EINVAL; + } + + rvu_npc_exact_cam_table_write(rvu, blkaddr, index, null_mdata); + clear_bit(index, table->cam_table.bmap); + break; + + case NPC_EXACT_OPC_MEM: + + /* Check whether entry is used already */ + if (!test_bit(index + ways * depth, table->mem_table.bmap)) { + mutex_unlock(&table->lock); + dev_err(rvu->dev, "%s: Trying to free an unused entry index=%d\n", + __func__, index); + return -EINVAL; + } + + rvu_npc_exact_mem_table_write(rvu, blkaddr, ways, index, null_mdata); + clear_bit(index + ways * depth, table->mem_table.bmap); + break; + + default: + mutex_unlock(&table->lock); + dev_err(rvu->dev, "%s: invalid opc type %d", __func__, opc_type); + return -ENOSPC; + } + + mutex_unlock(&table->lock); + + dev_dbg(rvu->dev, "%s: Successfully deleted entry (index=%d, ways=%d opc_type=%d\n", + __func__, index, ways, opc_type); + + return 0; +} + +/** + * rvu_npc_exact_alloc_table_entry - Allociate an entry + * @rvu: resource virtualization unit. + * @mac: MAC address. + * @chan: Channel number. + * @ctype: Channel Type. + * @index: Index of MEM table or CAM table. + * @ways: Ways. Only valid for MEM table. + * @opc_type: OPCODE to select table (MEM or CAM) + * + * Try allocating a slot from MEM table. If all 4 ways + * slot are full for a hash index, check availability in + * 32-entry CAM table for allocation. + * Return: 0 upon success. + */ +static int rvu_npc_exact_alloc_table_entry(struct rvu *rvu, char *mac, u16 chan, u8 ctype, + u32 *index, u8 *ways, enum npc_exact_opc_type *opc_type) +{ + struct npc_exact_table *table; + unsigned int hash; + int err; + + table = rvu->hw->table; + + /* Check in 4-ways mem entry for free slote */ + hash = rvu_exact_calculate_hash(rvu, chan, ctype, mac, table->mem_table.mask, + table->mem_table.depth); + err = rvu_npc_exact_alloc_mem_table_entry(rvu, ways, index, hash); + if (!err) { + *opc_type = NPC_EXACT_OPC_MEM; + dev_dbg(rvu->dev, "%s: inserted in 4 ways hash table ways=%d, index=%d\n", + __func__, *ways, *index); + return 0; + } + + dev_dbg(rvu->dev, "%s: failed to insert in 4 ways hash table\n", __func__); + + /* wayss is 0 for cam table */ + *ways = 0; + err = rvu_npc_exact_alloc_cam_table_entry(rvu, index); + if (!err) { + *opc_type = NPC_EXACT_OPC_CAM; + dev_dbg(rvu->dev, "%s: inserted in fully associative hash table index=%u\n", + __func__, *index); + return 0; + } + + dev_err(rvu->dev, "%s: failed to insert in fully associative hash table\n", __func__); + return -ENOSPC; +} + +/** + * rvu_npc_exact_save_drop_rule_chan_and_mask - Save drop rules info in data base. + * @rvu: resource virtualization unit. + * @drop_mcam_idx: Drop rule index in NPC mcam. + * @chan_val: Channel value. + * @chan_mask: Channel Mask. + * @pcifunc: pcifunc of interface. + * Return: True upon success. + */ +static bool rvu_npc_exact_save_drop_rule_chan_and_mask(struct rvu *rvu, int drop_mcam_idx, + u64 chan_val, u64 chan_mask, u16 pcifunc) +{ + struct npc_exact_table *table; + int i; + + table = rvu->hw->table; + + for (i = 0; i < NPC_MCAM_DROP_RULE_MAX; i++) { + if (!table->drop_rule_map[i].valid) + break; + + if (table->drop_rule_map[i].chan_val != (u16)chan_val) + continue; + + if (table->drop_rule_map[i].chan_mask != (u16)chan_mask) + continue; + + return false; + } + + if (i == NPC_MCAM_DROP_RULE_MAX) + return false; + + table->drop_rule_map[i].drop_rule_idx = drop_mcam_idx; + table->drop_rule_map[i].chan_val = (u16)chan_val; + table->drop_rule_map[i].chan_mask = (u16)chan_mask; + table->drop_rule_map[i].pcifunc = pcifunc; + table->drop_rule_map[i].valid = true; + return true; +} + +/** + * rvu_npc_exact_calc_drop_rule_chan_and_mask - Calculate Channel number and mask. + * @rvu: resource virtualization unit. + * @intf_type: Interface type (SDK, LBK or CGX) + * @cgx_id: CGX identifier. + * @lmac_id: LAMC identifier. + * @val: Channel number. + * @mask: Channel mask. + * Return: True upon success. + */ +static bool rvu_npc_exact_calc_drop_rule_chan_and_mask(struct rvu *rvu, u8 intf_type, + u8 cgx_id, u8 lmac_id, + u64 *val, u64 *mask) +{ + u16 chan_val, chan_mask; + + /* No support for SDP and LBK */ + if (intf_type != NIX_INTF_TYPE_CGX) + return false; + + chan_val = rvu_nix_chan_cgx(rvu, cgx_id, lmac_id, 0); + chan_mask = 0xfff; + + if (val) + *val = chan_val; + + if (mask) + *mask = chan_mask; + + return true; +} + +/** + * rvu_npc_exact_drop_rule_to_pcifunc - Retrieve pcifunc + * @rvu: resource virtualization unit. + * @drop_rule_idx: Drop rule index in NPC mcam. + * + * Debugfs (exact_drop_cnt) entry displays pcifunc for interface + * by retrieving the pcifunc value from data base. + * Return: Drop rule index. + */ +u16 rvu_npc_exact_drop_rule_to_pcifunc(struct rvu *rvu, u32 drop_rule_idx) +{ + struct npc_exact_table *table; + int i; + + table = rvu->hw->table; + + for (i = 0; i < NPC_MCAM_DROP_RULE_MAX; i++) { + if (!table->drop_rule_map[i].valid) + break; + + if (table->drop_rule_map[i].drop_rule_idx != drop_rule_idx) + continue; + + return table->drop_rule_map[i].pcifunc; + } + + dev_err(rvu->dev, "%s: drop mcam rule index (%d) >= NPC_MCAM_DROP_RULE_MAX\n", + __func__, drop_rule_idx); + return -1; +} + +/** + * rvu_npc_exact_get_drop_rule_info - Get drop rule information. + * @rvu: resource virtualization unit. + * @intf_type: Interface type (CGX, SDP or LBK) + * @cgx_id: CGX identifier. + * @lmac_id: LMAC identifier. + * @drop_mcam_idx: NPC mcam drop rule index. + * @val: Channel value. + * @mask: Channel mask. + * @pcifunc: pcifunc of interface corresponding to the drop rule. + * Return: True upon success. + */ +static bool rvu_npc_exact_get_drop_rule_info(struct rvu *rvu, u8 intf_type, u8 cgx_id, + u8 lmac_id, u32 *drop_mcam_idx, u64 *val, + u64 *mask, u16 *pcifunc) +{ + struct npc_exact_table *table; + u64 chan_val, chan_mask; + bool rc; + int i; + + table = rvu->hw->table; + + if (intf_type != NIX_INTF_TYPE_CGX) { + dev_err(rvu->dev, "%s: No drop rule for LBK/SDP mode\n", __func__); + return false; + } + + rc = rvu_npc_exact_calc_drop_rule_chan_and_mask(rvu, intf_type, cgx_id, + lmac_id, &chan_val, &chan_mask); + if (!rc) + return false; + + for (i = 0; i < NPC_MCAM_DROP_RULE_MAX; i++) { + if (!table->drop_rule_map[i].valid) + break; + + if (table->drop_rule_map[i].chan_val != (u16)chan_val) + continue; + + if (val) + *val = table->drop_rule_map[i].chan_val; + if (mask) + *mask = table->drop_rule_map[i].chan_mask; + if (pcifunc) + *pcifunc = table->drop_rule_map[i].pcifunc; + + *drop_mcam_idx = i; + return true; + } + + if (i == NPC_MCAM_DROP_RULE_MAX) { + dev_err(rvu->dev, "%s: drop mcam rule index (%d) >= NPC_MCAM_DROP_RULE_MAX\n", + __func__, *drop_mcam_idx); + return false; + } + + dev_err(rvu->dev, "%s: Could not retrieve for cgx=%d, lmac=%d\n", + __func__, cgx_id, lmac_id); + return false; +} + +/** + * __rvu_npc_exact_cmd_rules_cnt_update - Update number dmac rules against a drop rule. + * @rvu: resource virtualization unit. + * @drop_mcam_idx: NPC mcam drop rule index. + * @val: +1 or -1. + * @enable_or_disable_cam: If no exact match rules against a drop rule, disable it. + * + * when first exact match entry against a drop rule is added, enable_or_disable_cam + * is set to true. When last exact match entry against a drop rule is deleted, + * enable_or_disable_cam is set to true. + * Return: Number of rules + */ +static u16 __rvu_npc_exact_cmd_rules_cnt_update(struct rvu *rvu, int drop_mcam_idx, + int val, bool *enable_or_disable_cam) +{ + struct npc_exact_table *table; + u16 *cnt, old_cnt; + bool promisc; + + table = rvu->hw->table; + promisc = table->promisc_mode[drop_mcam_idx]; + + cnt = &table->cnt_cmd_rules[drop_mcam_idx]; + old_cnt = *cnt; + + *cnt += val; + + if (!enable_or_disable_cam) + goto done; + + *enable_or_disable_cam = false; + + if (promisc) + goto done; + + /* If all rules are deleted and not already in promisc mode; + * disable cam + */ + if (!*cnt && val < 0) { + *enable_or_disable_cam = true; + goto done; + } + + /* If rule got added and not already in promisc mode; enable cam */ + if (!old_cnt && val > 0) { + *enable_or_disable_cam = true; + goto done; + } + +done: + return *cnt; +} + +/** + * rvu_npc_exact_del_table_entry_by_id - Delete and free table entry. + * @rvu: resource virtualization unit. + * @seq_id: Sequence identifier of the entry. + * + * Deletes entry from linked lists and free up slot in HW MEM or CAM + * table. + * Return: 0 upon success. + */ +static int rvu_npc_exact_del_table_entry_by_id(struct rvu *rvu, u32 seq_id) +{ + struct npc_exact_table_entry *entry = NULL; + struct npc_exact_table *table; + bool disable_cam = false; + u32 drop_mcam_idx = -1; + int *cnt; + bool rc; + + table = rvu->hw->table; + + mutex_lock(&table->lock); + + /* Lookup for entry which needs to be updated */ + entry = __rvu_npc_exact_find_entry_by_seq_id(rvu, seq_id); + if (!entry) { + dev_dbg(rvu->dev, "%s: failed to find entry for id=%d\n", __func__, seq_id); + mutex_unlock(&table->lock); + return -ENODATA; + } + + cnt = (entry->opc_type == NPC_EXACT_OPC_CAM) ? &table->cam_tbl_entry_cnt : + &table->mem_tbl_entry_cnt; + + /* delete from lists */ + list_del_init(&entry->list); + list_del_init(&entry->glist); + + (*cnt)--; + + rc = rvu_npc_exact_get_drop_rule_info(rvu, NIX_INTF_TYPE_CGX, entry->cgx_id, + entry->lmac_id, &drop_mcam_idx, NULL, NULL, NULL); + if (!rc) { + dev_dbg(rvu->dev, "%s: failed to retrieve drop info for id=0x%x\n", + __func__, seq_id); + mutex_unlock(&table->lock); + return -ENODATA; + } + + if (entry->cmd) + __rvu_npc_exact_cmd_rules_cnt_update(rvu, drop_mcam_idx, -1, &disable_cam); + + /* No dmac filter rules; disable drop on hit rule */ + if (disable_cam) { + rvu_npc_enable_mcam_by_entry_index(rvu, drop_mcam_idx, NIX_INTF_RX, false); + dev_dbg(rvu->dev, "%s: Disabling mcam idx %d\n", + __func__, drop_mcam_idx); + } + + mutex_unlock(&table->lock); + + rvu_npc_exact_dealloc_table_entry(rvu, entry->opc_type, entry->ways, entry->index); + + rvu_npc_exact_free_id(rvu, seq_id); + + dev_dbg(rvu->dev, "%s: delete entry success for id=0x%x, mca=%pM\n", + __func__, seq_id, entry->mac); + kfree(entry); + + return 0; +} + +/** + * rvu_npc_exact_add_table_entry - Adds a table entry + * @rvu: resource virtualization unit. + * @cgx_id: cgx identifier. + * @lmac_id: lmac identifier. + * @mac: MAC address. + * @chan: Channel number. + * @ctype: Channel Type. + * @seq_id: Sequence number. + * @cmd: Whether it is invoked by ethtool cmd. + * @mcam_idx: NPC mcam index corresponding to MAC + * @pcifunc: PCI func. + * + * Creates a new exact match table entry in either CAM or + * MEM table. + * Return: 0 upon success. + */ +static int rvu_npc_exact_add_table_entry(struct rvu *rvu, u8 cgx_id, u8 lmac_id, u8 *mac, + u16 chan, u8 ctype, u32 *seq_id, bool cmd, + u32 mcam_idx, u16 pcifunc) +{ + int blkaddr = rvu_get_blkaddr(rvu, BLKTYPE_NPC, 0); + enum npc_exact_opc_type opc_type; + bool enable_cam = false; + u32 drop_mcam_idx; + u32 index; + u64 mdata; + bool rc; + int err; + u8 ways; + + ctype = 0; + + err = rvu_npc_exact_alloc_table_entry(rvu, mac, chan, ctype, &index, &ways, &opc_type); + if (err) { + dev_err(rvu->dev, "%s: Could not alloc in exact match table\n", __func__); + return err; + } + + /* Write mdata to table */ + mdata = rvu_exact_prepare_table_entry(rvu, true, ctype, chan, mac); + + if (opc_type == NPC_EXACT_OPC_CAM) + rvu_npc_exact_cam_table_write(rvu, blkaddr, index, mdata); + else + rvu_npc_exact_mem_table_write(rvu, blkaddr, ways, index, mdata); + + /* Insert entry to linked list */ + err = rvu_npc_exact_add_to_list(rvu, opc_type, ways, index, cgx_id, lmac_id, + mac, chan, ctype, seq_id, cmd, mcam_idx, pcifunc); + if (err) { + rvu_npc_exact_dealloc_table_entry(rvu, opc_type, ways, index); + dev_err(rvu->dev, "%s: could not add to exact match table\n", __func__); + return err; + } + + rc = rvu_npc_exact_get_drop_rule_info(rvu, NIX_INTF_TYPE_CGX, cgx_id, lmac_id, + &drop_mcam_idx, NULL, NULL, NULL); + if (!rc) { + rvu_npc_exact_dealloc_table_entry(rvu, opc_type, ways, index); + dev_dbg(rvu->dev, "%s: failed to get drop rule info cgx=%d lmac=%d\n", + __func__, cgx_id, lmac_id); + return -EINVAL; + } + + if (cmd) + __rvu_npc_exact_cmd_rules_cnt_update(rvu, drop_mcam_idx, 1, &enable_cam); + + /* First command rule; enable drop on hit rule */ + if (enable_cam) { + rvu_npc_enable_mcam_by_entry_index(rvu, drop_mcam_idx, NIX_INTF_RX, true); + dev_dbg(rvu->dev, "%s: Enabling mcam idx %d\n", + __func__, drop_mcam_idx); + } + + dev_dbg(rvu->dev, + "%s: Successfully added entry (index=%d, dmac=%pM, ways=%d opc_type=%d\n", + __func__, index, mac, ways, opc_type); + + return 0; +} + +/** + * rvu_npc_exact_update_table_entry - Update exact match table. + * @rvu: resource virtualization unit. + * @cgx_id: CGX identifier. + * @lmac_id: LMAC identifier. + * @old_mac: Existing MAC address entry. + * @new_mac: New MAC address entry. + * @seq_id: Sequence identifier of the entry. + * + * Updates MAC address of an entry. If entry is in MEM table, new + * hash value may not match with old one. + * Return: 0 upon success. + */ +static int rvu_npc_exact_update_table_entry(struct rvu *rvu, u8 cgx_id, u8 lmac_id, + u8 *old_mac, u8 *new_mac, u32 *seq_id) +{ + int blkaddr = rvu_get_blkaddr(rvu, BLKTYPE_NPC, 0); + struct npc_exact_table_entry *entry; + struct npc_exact_table *table; + u32 hash_index; + u64 mdata; + + table = rvu->hw->table; + + mutex_lock(&table->lock); + + /* Lookup for entry which needs to be updated */ + entry = __rvu_npc_exact_find_entry_by_seq_id(rvu, *seq_id); + if (!entry) { + mutex_unlock(&table->lock); + dev_dbg(rvu->dev, + "%s: failed to find entry for cgx_id=%d lmac_id=%d old_mac=%pM\n", + __func__, cgx_id, lmac_id, old_mac); + return -ENODATA; + } + + /* If entry is in mem table and new hash index is different than old + * hash index, we cannot update the entry. Fail in these scenarios. + */ + if (entry->opc_type == NPC_EXACT_OPC_MEM) { + hash_index = rvu_exact_calculate_hash(rvu, entry->chan, entry->ctype, + new_mac, table->mem_table.mask, + table->mem_table.depth); + if (hash_index != entry->index) { + dev_dbg(rvu->dev, + "%s: Update failed due to index mismatch(new=0x%x, old=%x)\n", + __func__, hash_index, entry->index); + mutex_unlock(&table->lock); + return -EINVAL; + } + } + + mdata = rvu_exact_prepare_table_entry(rvu, true, entry->ctype, entry->chan, new_mac); + + if (entry->opc_type == NPC_EXACT_OPC_MEM) + rvu_npc_exact_mem_table_write(rvu, blkaddr, entry->ways, entry->index, mdata); + else + rvu_npc_exact_cam_table_write(rvu, blkaddr, entry->index, mdata); + + /* Update entry fields */ + ether_addr_copy(entry->mac, new_mac); + *seq_id = entry->seq_id; + + dev_dbg(rvu->dev, + "%s: Successfully updated entry (index=%d, dmac=%pM, ways=%d opc_type=%d\n", + __func__, entry->index, entry->mac, entry->ways, entry->opc_type); + + dev_dbg(rvu->dev, "%s: Successfully updated entry (old mac=%pM new_mac=%pM\n", + __func__, old_mac, new_mac); + + mutex_unlock(&table->lock); + return 0; +} + +/** + * rvu_npc_exact_promisc_disable - Disable promiscuous mode. + * @rvu: resource virtualization unit. + * @pcifunc: pcifunc + * + * Drop rule is against each PF. We dont support DMAC filter for + * VF. + * Return: 0 upon success + */ + +int rvu_npc_exact_promisc_disable(struct rvu *rvu, u16 pcifunc) +{ + struct npc_exact_table *table; + int pf = rvu_get_pf(pcifunc); + u8 cgx_id, lmac_id; + u32 drop_mcam_idx; + bool *promisc; + bool rc; + + table = rvu->hw->table; + + rvu_get_cgx_lmac_id(rvu->pf2cgxlmac_map[pf], &cgx_id, &lmac_id); + rc = rvu_npc_exact_get_drop_rule_info(rvu, NIX_INTF_TYPE_CGX, cgx_id, lmac_id, + &drop_mcam_idx, NULL, NULL, NULL); + if (!rc) { + dev_dbg(rvu->dev, "%s: failed to get drop rule info cgx=%d lmac=%d\n", + __func__, cgx_id, lmac_id); + return -EINVAL; + } + + mutex_lock(&table->lock); + promisc = &table->promisc_mode[drop_mcam_idx]; + + if (!*promisc) { + mutex_unlock(&table->lock); + dev_dbg(rvu->dev, "%s: Err Already promisc mode disabled (cgx=%d lmac=%d)\n", + __func__, cgx_id, lmac_id); + return LMAC_AF_ERR_INVALID_PARAM; + } + *promisc = false; + mutex_unlock(&table->lock); + + /* Enable drop rule */ + rvu_npc_enable_mcam_by_entry_index(rvu, drop_mcam_idx, NIX_INTF_RX, + true); + + dev_dbg(rvu->dev, "%s: disabled promisc mode (cgx=%d lmac=%d)\n", + __func__, cgx_id, lmac_id); + return 0; +} + +/** + * rvu_npc_exact_promisc_enable - Enable promiscuous mode. + * @rvu: resource virtualization unit. + * @pcifunc: pcifunc. + * Return: 0 upon success + */ +int rvu_npc_exact_promisc_enable(struct rvu *rvu, u16 pcifunc) +{ + struct npc_exact_table *table; + int pf = rvu_get_pf(pcifunc); + u8 cgx_id, lmac_id; + u32 drop_mcam_idx; + bool *promisc; + bool rc; + + table = rvu->hw->table; + + rvu_get_cgx_lmac_id(rvu->pf2cgxlmac_map[pf], &cgx_id, &lmac_id); + rc = rvu_npc_exact_get_drop_rule_info(rvu, NIX_INTF_TYPE_CGX, cgx_id, lmac_id, + &drop_mcam_idx, NULL, NULL, NULL); + if (!rc) { + dev_dbg(rvu->dev, "%s: failed to get drop rule info cgx=%d lmac=%d\n", + __func__, cgx_id, lmac_id); + return -EINVAL; + } + + mutex_lock(&table->lock); + promisc = &table->promisc_mode[drop_mcam_idx]; + + if (*promisc) { + mutex_unlock(&table->lock); + dev_dbg(rvu->dev, "%s: Already in promisc mode (cgx=%d lmac=%d)\n", + __func__, cgx_id, lmac_id); + return LMAC_AF_ERR_INVALID_PARAM; + } + *promisc = true; + mutex_unlock(&table->lock); + + /* disable drop rule */ + rvu_npc_enable_mcam_by_entry_index(rvu, drop_mcam_idx, NIX_INTF_RX, + false); + + dev_dbg(rvu->dev, "%s: Enabled promisc mode (cgx=%d lmac=%d)\n", + __func__, cgx_id, lmac_id); + return 0; +} + +/** + * rvu_npc_exact_mac_addr_reset - Delete PF mac address. + * @rvu: resource virtualization unit. + * @req: Reset request + * @rsp: Reset response. + * Return: 0 upon success + */ +int rvu_npc_exact_mac_addr_reset(struct rvu *rvu, struct cgx_mac_addr_reset_req *req, + struct msg_rsp *rsp) +{ + int pf = rvu_get_pf(req->hdr.pcifunc); + u32 seq_id = req->index; + struct rvu_pfvf *pfvf; + u8 cgx_id, lmac_id; + int rc; + + rvu_get_cgx_lmac_id(rvu->pf2cgxlmac_map[pf], &cgx_id, &lmac_id); + + pfvf = rvu_get_pfvf(rvu, req->hdr.pcifunc); + + rc = rvu_npc_exact_del_table_entry_by_id(rvu, seq_id); + if (rc) { + /* TODO: how to handle this error case ? */ + dev_err(rvu->dev, "%s MAC (%pM) del PF=%d failed\n", __func__, pfvf->mac_addr, pf); + return 0; + } + + dev_dbg(rvu->dev, "%s MAC (%pM) del PF=%d success (seq_id=%u)\n", + __func__, pfvf->mac_addr, pf, seq_id); + return 0; +} + +/** + * rvu_npc_exact_mac_addr_update - Update mac address field with new value. + * @rvu: resource virtualization unit. + * @req: Update request. + * @rsp: Update response. + * Return: 0 upon success + */ +int rvu_npc_exact_mac_addr_update(struct rvu *rvu, + struct cgx_mac_addr_update_req *req, + struct cgx_mac_addr_update_rsp *rsp) +{ + int pf = rvu_get_pf(req->hdr.pcifunc); + struct npc_exact_table_entry *entry; + struct npc_exact_table *table; + struct rvu_pfvf *pfvf; + u32 seq_id, mcam_idx; + u8 old_mac[ETH_ALEN]; + u8 cgx_id, lmac_id; + int rc; + + if (!is_cgx_config_permitted(rvu, req->hdr.pcifunc)) + return LMAC_AF_ERR_PERM_DENIED; + + dev_dbg(rvu->dev, "%s: Update request for seq_id=%d, mac=%pM\n", + __func__, req->index, req->mac_addr); + + rvu_get_cgx_lmac_id(rvu->pf2cgxlmac_map[pf], &cgx_id, &lmac_id); + + pfvf = rvu_get_pfvf(rvu, req->hdr.pcifunc); + + table = rvu->hw->table; + + mutex_lock(&table->lock); + + /* Lookup for entry which needs to be updated */ + entry = __rvu_npc_exact_find_entry_by_seq_id(rvu, req->index); + if (!entry) { + dev_err(rvu->dev, "%s: failed to find entry for id=0x%x\n", __func__, req->index); + mutex_unlock(&table->lock); + return LMAC_AF_ERR_EXACT_MATCH_TBL_LOOK_UP_FAILED; + } + ether_addr_copy(old_mac, entry->mac); + seq_id = entry->seq_id; + mcam_idx = entry->mcam_idx; + mutex_unlock(&table->lock); + + rc = rvu_npc_exact_update_table_entry(rvu, cgx_id, lmac_id, old_mac, + req->mac_addr, &seq_id); + if (!rc) { + rsp->index = seq_id; + dev_dbg(rvu->dev, "%s mac:%pM (pfvf:%pM default:%pM) update to PF=%d success\n", + __func__, req->mac_addr, pfvf->mac_addr, pfvf->default_mac, pf); + ether_addr_copy(pfvf->mac_addr, req->mac_addr); + return 0; + } + + /* Try deleting and adding it again */ + rc = rvu_npc_exact_del_table_entry_by_id(rvu, req->index); + if (rc) { + /* This could be a new entry */ + dev_dbg(rvu->dev, "%s MAC (%pM) del PF=%d failed\n", __func__, + pfvf->mac_addr, pf); + } + + rc = rvu_npc_exact_add_table_entry(rvu, cgx_id, lmac_id, req->mac_addr, + pfvf->rx_chan_base, 0, &seq_id, true, + mcam_idx, req->hdr.pcifunc); + if (rc) { + dev_err(rvu->dev, "%s MAC (%pM) add PF=%d failed\n", __func__, + req->mac_addr, pf); + return LMAC_AF_ERR_EXACT_MATCH_TBL_ADD_FAILED; + } + + rsp->index = seq_id; + dev_dbg(rvu->dev, + "%s MAC (new:%pM, old=%pM default:%pM) del and add to PF=%d success (seq_id=%u)\n", + __func__, req->mac_addr, pfvf->mac_addr, pfvf->default_mac, pf, seq_id); + + ether_addr_copy(pfvf->mac_addr, req->mac_addr); + return 0; +} + +/** + * rvu_npc_exact_mac_addr_add - Adds MAC address to exact match table. + * @rvu: resource virtualization unit. + * @req: Add request. + * @rsp: Add response. + * Return: 0 upon success + */ +int rvu_npc_exact_mac_addr_add(struct rvu *rvu, + struct cgx_mac_addr_add_req *req, + struct cgx_mac_addr_add_rsp *rsp) +{ + int pf = rvu_get_pf(req->hdr.pcifunc); + struct rvu_pfvf *pfvf; + u8 cgx_id, lmac_id; + int rc = 0; + u32 seq_id; + + rvu_get_cgx_lmac_id(rvu->pf2cgxlmac_map[pf], &cgx_id, &lmac_id); + pfvf = rvu_get_pfvf(rvu, req->hdr.pcifunc); + + rc = rvu_npc_exact_add_table_entry(rvu, cgx_id, lmac_id, req->mac_addr, + pfvf->rx_chan_base, 0, &seq_id, + true, -1, req->hdr.pcifunc); + + if (!rc) { + rsp->index = seq_id; + dev_dbg(rvu->dev, "%s MAC (%pM) add to PF=%d success (seq_id=%u)\n", + __func__, req->mac_addr, pf, seq_id); + return 0; + } + + dev_err(rvu->dev, "%s MAC (%pM) add to PF=%d failed\n", __func__, + req->mac_addr, pf); + return LMAC_AF_ERR_EXACT_MATCH_TBL_ADD_FAILED; +} + +/** + * rvu_npc_exact_mac_addr_del - Delete DMAC filter + * @rvu: resource virtualization unit. + * @req: Delete request. + * @rsp: Delete response. + * Return: 0 upon success + */ +int rvu_npc_exact_mac_addr_del(struct rvu *rvu, + struct cgx_mac_addr_del_req *req, + struct msg_rsp *rsp) +{ + int pf = rvu_get_pf(req->hdr.pcifunc); + int rc; + + rc = rvu_npc_exact_del_table_entry_by_id(rvu, req->index); + if (!rc) { + dev_dbg(rvu->dev, "%s del to PF=%d success (seq_id=%u)\n", + __func__, pf, req->index); + return 0; + } + + dev_err(rvu->dev, "%s del to PF=%d failed (seq_id=%u)\n", + __func__, pf, req->index); + return LMAC_AF_ERR_EXACT_MATCH_TBL_DEL_FAILED; +} + +/** + * rvu_npc_exact_mac_addr_set - Add PF mac address to dmac filter. + * @rvu: resource virtualization unit. + * @req: Set request. + * @rsp: Set response. + * Return: 0 upon success + */ +int rvu_npc_exact_mac_addr_set(struct rvu *rvu, struct cgx_mac_addr_set_or_get *req, + struct cgx_mac_addr_set_or_get *rsp) +{ + int pf = rvu_get_pf(req->hdr.pcifunc); + u32 seq_id = req->index; + struct rvu_pfvf *pfvf; + u8 cgx_id, lmac_id; + u32 mcam_idx = -1; + int rc, nixlf; + + rvu_get_cgx_lmac_id(rvu->pf2cgxlmac_map[pf], &cgx_id, &lmac_id); + + pfvf = &rvu->pf[pf]; + + /* If table does not have an entry; both update entry and del table entry API + * below fails. Those are not failure conditions. + */ + rc = rvu_npc_exact_update_table_entry(rvu, cgx_id, lmac_id, pfvf->mac_addr, + req->mac_addr, &seq_id); + if (!rc) { + rsp->index = seq_id; + ether_addr_copy(pfvf->mac_addr, req->mac_addr); + ether_addr_copy(rsp->mac_addr, req->mac_addr); + dev_dbg(rvu->dev, "%s MAC (%pM) update to PF=%d success\n", + __func__, req->mac_addr, pf); + return 0; + } + + /* Try deleting and adding it again */ + rc = rvu_npc_exact_del_table_entry_by_id(rvu, req->index); + if (rc) { + dev_dbg(rvu->dev, "%s MAC (%pM) del PF=%d failed\n", + __func__, pfvf->mac_addr, pf); + } + + /* find mcam entry if exist */ + rc = nix_get_nixlf(rvu, req->hdr.pcifunc, &nixlf, NULL); + if (!rc) { + mcam_idx = npc_get_nixlf_mcam_index(&rvu->hw->mcam, req->hdr.pcifunc, + nixlf, NIXLF_UCAST_ENTRY); + } + + rc = rvu_npc_exact_add_table_entry(rvu, cgx_id, lmac_id, req->mac_addr, + pfvf->rx_chan_base, 0, &seq_id, + true, mcam_idx, req->hdr.pcifunc); + if (rc) { + dev_err(rvu->dev, "%s MAC (%pM) add PF=%d failed\n", + __func__, req->mac_addr, pf); + return LMAC_AF_ERR_EXACT_MATCH_TBL_ADD_FAILED; + } + + rsp->index = seq_id; + ether_addr_copy(rsp->mac_addr, req->mac_addr); + ether_addr_copy(pfvf->mac_addr, req->mac_addr); + dev_dbg(rvu->dev, + "%s MAC (%pM) del and add to PF=%d success (seq_id=%u)\n", + __func__, req->mac_addr, pf, seq_id); + return 0; +} + +/** + * rvu_npc_exact_can_disable_feature - Check if feature can be disabled. + * @rvu: resource virtualization unit. + * Return: True if exact match feature is supported. + */ +bool rvu_npc_exact_can_disable_feature(struct rvu *rvu) +{ + struct npc_exact_table *table = rvu->hw->table; + bool empty; + + if (!rvu->hw->cap.npc_exact_match_enabled) + return false; + + mutex_lock(&table->lock); + empty = list_empty(&table->lhead_gbl); + mutex_unlock(&table->lock); + + return empty; +} + +/** + * rvu_npc_exact_disable_feature - Disable feature. + * @rvu: resource virtualization unit. + */ +void rvu_npc_exact_disable_feature(struct rvu *rvu) +{ + rvu->hw->cap.npc_exact_match_enabled = false; +} + +/** + * rvu_npc_exact_reset - Delete and free all entry which match pcifunc. + * @rvu: resource virtualization unit. + * @pcifunc: PCI func to match. + */ +void rvu_npc_exact_reset(struct rvu *rvu, u16 pcifunc) +{ + struct npc_exact_table *table = rvu->hw->table; + struct npc_exact_table_entry *tmp, *iter; + u32 seq_id; + + mutex_lock(&table->lock); + list_for_each_entry_safe(iter, tmp, &table->lhead_gbl, glist) { + if (pcifunc != iter->pcifunc) + continue; + + seq_id = iter->seq_id; + dev_dbg(rvu->dev, "%s: resetting pcifun=%d seq_id=%u\n", __func__, + pcifunc, seq_id); + + mutex_unlock(&table->lock); + rvu_npc_exact_del_table_entry_by_id(rvu, seq_id); + mutex_lock(&table->lock); + } + mutex_unlock(&table->lock); +} + +/** + * rvu_npc_exact_init - initialize exact match table + * @rvu: resource virtualization unit. + * + * Initialize HW and SW resources to manage 4way-2K table and fully + * associative 32-entry mcam table. + * Return: 0 upon success. + */ +int rvu_npc_exact_init(struct rvu *rvu) +{ + u64 bcast_mcast_val, bcast_mcast_mask; + struct npc_exact_table *table; + u64 exact_val, exact_mask; + u64 chan_val, chan_mask; + u8 cgx_id, lmac_id; + u32 *drop_mcam_idx; + u16 max_lmac_cnt; + u64 npc_const3; + int table_size; + int blkaddr; + u16 pcifunc; + int err, i; + u64 cfg; + bool rc; + + /* Read NPC_AF_CONST3 and check for have exact + * match functionality is present + */ + blkaddr = rvu_get_blkaddr(rvu, BLKTYPE_NPC, 0); + if (blkaddr < 0) { + dev_err(rvu->dev, "%s: NPC block not implemented\n", __func__); + return -EINVAL; + } + + /* Check exact match feature is supported */ + npc_const3 = rvu_read64(rvu, blkaddr, NPC_AF_CONST3); + if (!(npc_const3 & BIT_ULL(62))) + return 0; + + /* Check if kex profile has enabled EXACT match nibble */ + cfg = rvu_read64(rvu, blkaddr, NPC_AF_INTFX_KEX_CFG(NIX_INTF_RX)); + if (!(cfg & NPC_EXACT_NIBBLE_HIT)) + return 0; + + /* Set capability to true */ + rvu->hw->cap.npc_exact_match_enabled = true; + + table = kmalloc(sizeof(*table), GFP_KERNEL); + if (!table) + return -ENOMEM; + + dev_dbg(rvu->dev, "%s: Memory allocation for table success\n", __func__); + memset(table, 0, sizeof(*table)); + rvu->hw->table = table; + + /* Read table size, ways and depth */ + table->mem_table.ways = FIELD_GET(GENMASK_ULL(19, 16), npc_const3); + table->mem_table.depth = FIELD_GET(GENMASK_ULL(15, 0), npc_const3); + table->cam_table.depth = FIELD_GET(GENMASK_ULL(31, 24), npc_const3); + + dev_dbg(rvu->dev, "%s: NPC exact match 4way_2k table(ways=%d, depth=%d)\n", + __func__, table->mem_table.ways, table->cam_table.depth); + + /* Check if depth of table is not a sequre of 2 + * TODO: why _builtin_popcount() is not working ? + */ + if ((table->mem_table.depth & (table->mem_table.depth - 1)) != 0) { + dev_err(rvu->dev, + "%s: NPC exact match 4way_2k table depth(%d) is not square of 2\n", + __func__, table->mem_table.depth); + return -EINVAL; + } + + table_size = table->mem_table.depth * table->mem_table.ways; + + /* Allocate bitmap for 4way 2K table */ + table->mem_table.bmap = devm_kcalloc(rvu->dev, BITS_TO_LONGS(table_size), + sizeof(long), GFP_KERNEL); + if (!table->mem_table.bmap) + return -ENOMEM; + + dev_dbg(rvu->dev, "%s: Allocated bitmap for 4way 2K entry table\n", __func__); + + /* Allocate bitmap for 32 entry mcam */ + table->cam_table.bmap = devm_kcalloc(rvu->dev, 1, sizeof(long), GFP_KERNEL); + + if (!table->cam_table.bmap) + return -ENOMEM; + + dev_dbg(rvu->dev, "%s: Allocated bitmap for 32 entry cam\n", __func__); + + table->tot_ids = (table->mem_table.depth * table->mem_table.ways) + table->cam_table.depth; + table->id_bmap = devm_kcalloc(rvu->dev, BITS_TO_LONGS(table->tot_ids), + table->tot_ids, GFP_KERNEL); + + if (!table->id_bmap) + return -ENOMEM; + + dev_dbg(rvu->dev, "%s: Allocated bitmap for id map (total=%d)\n", + __func__, table->tot_ids); + + /* Initialize list heads for npc_exact_table entries. + * This entry is used by debugfs to show entries in + * exact match table. + */ + for (i = 0; i < NPC_EXACT_TBL_MAX_WAYS; i++) + INIT_LIST_HEAD(&table->lhead_mem_tbl_entry[i]); + + INIT_LIST_HEAD(&table->lhead_cam_tbl_entry); + INIT_LIST_HEAD(&table->lhead_gbl); + + mutex_init(&table->lock); + + rvu_exact_config_secret_key(rvu); + rvu_exact_config_search_key(rvu); + + rvu_exact_config_table_mask(rvu); + rvu_exact_config_result_ctrl(rvu, table->mem_table.depth); + + /* - No drop rule for LBK + * - Drop rules for SDP and each LMAC. + */ + exact_val = !NPC_EXACT_RESULT_HIT; + exact_mask = NPC_EXACT_RESULT_HIT; + + /* nibble - 3 2 1 0 + * L3B L3M L2B L2M + */ + bcast_mcast_val = 0b0000; + bcast_mcast_mask = 0b0011; + + /* Install SDP drop rule */ + drop_mcam_idx = &table->num_drop_rules; + + max_lmac_cnt = rvu->cgx_cnt_max * rvu->hw->lmac_per_cgx + + PF_CGXMAP_BASE; + + for (i = PF_CGXMAP_BASE; i < max_lmac_cnt; i++) { + if (rvu->pf2cgxlmac_map[i] == 0xFF) + continue; + + rvu_get_cgx_lmac_id(rvu->pf2cgxlmac_map[i], &cgx_id, &lmac_id); + + rc = rvu_npc_exact_calc_drop_rule_chan_and_mask(rvu, NIX_INTF_TYPE_CGX, cgx_id, + lmac_id, &chan_val, &chan_mask); + if (!rc) { + dev_err(rvu->dev, + "%s: failed, info chan_val=0x%llx chan_mask=0x%llx rule_id=%d\n", + __func__, chan_val, chan_mask, *drop_mcam_idx); + return -EINVAL; + } + + /* Filter rules are only for PF */ + pcifunc = RVU_PFFUNC(i, 0); + + dev_dbg(rvu->dev, + "%s:Drop rule cgx=%d lmac=%d chan(val=0x%llx, mask=0x%llx\n", + __func__, cgx_id, lmac_id, chan_val, chan_mask); + + rc = rvu_npc_exact_save_drop_rule_chan_and_mask(rvu, table->num_drop_rules, + chan_val, chan_mask, pcifunc); + if (!rc) { + dev_err(rvu->dev, + "%s: failed to set drop info for cgx=%d, lmac=%d, chan=%llx\n", + __func__, cgx_id, lmac_id, chan_val); + return -EINVAL; + } + + err = npc_install_mcam_drop_rule(rvu, *drop_mcam_idx, + &table->counter_idx[*drop_mcam_idx], + chan_val, chan_mask, + exact_val, exact_mask, + bcast_mcast_val, bcast_mcast_mask); + if (err) { + dev_err(rvu->dev, + "failed to configure drop rule (cgx=%d lmac=%d)\n", + cgx_id, lmac_id); + return err; + } + + (*drop_mcam_idx)++; + } + + dev_info(rvu->dev, "initialized exact match table successfully\n"); + return 0; +} diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rvu_npc_hash.h b/drivers/net/ethernet/marvell/octeontx2/af/rvu_npc_hash.h new file mode 100644 index 000000000..57a09328d --- /dev/null +++ b/drivers/net/ethernet/marvell/octeontx2/af/rvu_npc_hash.h @@ -0,0 +1,239 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* Marvell RVU Admin Function driver + * + * Copyright (C) 2022 Marvell. + * + */ + +#ifndef __RVU_NPC_HASH_H +#define __RVU_NPC_HASH_H + +#define RVU_NPC_HASH_SECRET_KEY0 0xa9d5af4c9fbc76b1 +#define RVU_NPC_HASH_SECRET_KEY1 0xa9d5af4c9fbc87b4 +#define RVU_NPC_HASH_SECRET_KEY2 0x5954c9e7 + +#define NPC_MAX_HASH 2 +#define NPC_MAX_HASH_MASK 2 + +#define KEX_LD_CFG_USE_HASH(use_hash, bytesm1, hdr_ofs, ena, flags_ena, key_ofs) \ + ((use_hash) << 20 | ((bytesm1) << 16) | ((hdr_ofs) << 8) | \ + ((ena) << 7) | ((flags_ena) << 6) | ((key_ofs) & 0x3F)) +#define KEX_LD_CFG_HASH(hdr_ofs, bytesm1, lt_en, lid_en, lid, ltype_match, ltype_mask) \ + (((hdr_ofs) << 32) | ((bytesm1) << 16) | \ + ((lt_en) << 12) | ((lid_en) << 11) | ((lid) << 8) | \ + ((ltype_match) << 4) | ((ltype_mask) & 0xF)) + +#define SET_KEX_LD_HASH(intf, ld, cfg) \ + rvu_write64(rvu, blkaddr, \ + NPC_AF_INTFX_HASHX_CFG(intf, ld), cfg) + +#define SET_KEX_LD_HASH_MASK(intf, ld, mask_idx, cfg) \ + rvu_write64(rvu, blkaddr, \ + NPC_AF_INTFX_HASHX_MASKX(intf, ld, mask_idx), cfg) + +#define GET_KEX_LD_HASH_CTRL(intf, ld) \ + rvu_read64(rvu, blkaddr, NPC_AF_INTFX_HASHX_RESULT_CTRL(intf, ld)) + +#define GET_KEX_LD_HASH_MASK(intf, ld, mask_idx) \ + rvu_read64(rvu, blkaddr, NPC_AF_INTFX_HASHX_MASKX(intf, ld, mask_idx)) + +#define SET_KEX_LD_HASH_CTRL(intf, ld, cfg) \ + rvu_write64(rvu, blkaddr, \ + NPC_AF_INTFX_HASHX_RESULT_CTRL(intf, ld), cfg) + +struct npc_mcam_kex_hash { + /* NPC_AF_INTF(0..1)_LID(0..7)_LT(0..15)_LD(0..1)_CFG */ + bool lid_lt_ld_hash_en[NPC_MAX_INTF][NPC_MAX_LID][NPC_MAX_LT][NPC_MAX_LD]; + /* NPC_AF_INTF(0..1)_HASH(0..1)_CFG */ + u64 hash[NPC_MAX_INTF][NPC_MAX_HASH]; + /* NPC_AF_INTF(0..1)_HASH(0..1)_MASK(0..1) */ + u64 hash_mask[NPC_MAX_INTF][NPC_MAX_HASH][NPC_MAX_HASH_MASK]; + /* NPC_AF_INTF(0..1)_HASH(0..1)_RESULT_CTRL */ + u64 hash_ctrl[NPC_MAX_INTF][NPC_MAX_HASH]; +} __packed; + +void npc_update_field_hash(struct rvu *rvu, u8 intf, + struct mcam_entry *entry, + int blkaddr, + u64 features, + struct flow_msg *pkt, + struct flow_msg *mask, + struct flow_msg *opkt, + struct flow_msg *omask); +void npc_config_secret_key(struct rvu *rvu, int blkaddr); +void npc_program_mkex_hash(struct rvu *rvu, int blkaddr); +u32 npc_field_hash_calc(u64 *ldata, struct npc_get_field_hash_info_rsp rsp, + u8 intf, u8 hash_idx); + +static struct npc_mcam_kex_hash npc_mkex_hash_default __maybe_unused = { + .lid_lt_ld_hash_en = { + [NIX_INTF_RX] = { + [NPC_LID_LC] = { + [NPC_LT_LC_IP6] = { + false, + false, + }, + }, + }, + + [NIX_INTF_TX] = { + [NPC_LID_LC] = { + [NPC_LT_LC_IP6] = { + false, + false, + }, + }, + }, + }, + + .hash = { + [NIX_INTF_RX] = { + KEX_LD_CFG_HASH(0x8ULL, 0xf, 0x1, 0x1, NPC_LID_LC, NPC_LT_LC_IP6, 0xf), + KEX_LD_CFG_HASH(0x18ULL, 0xf, 0x1, 0x1, NPC_LID_LC, NPC_LT_LC_IP6, 0xf), + }, + + [NIX_INTF_TX] = { + KEX_LD_CFG_HASH(0x8ULL, 0xf, 0x1, 0x1, NPC_LID_LC, NPC_LT_LC_IP6, 0xf), + KEX_LD_CFG_HASH(0x18ULL, 0xf, 0x1, 0x1, NPC_LID_LC, NPC_LT_LC_IP6, 0xf), + }, + }, + + .hash_mask = { + [NIX_INTF_RX] = { + [0] = { + GENMASK_ULL(63, 0), + GENMASK_ULL(63, 0), + }, + [1] = { + GENMASK_ULL(63, 0), + GENMASK_ULL(63, 0), + }, + }, + + [NIX_INTF_TX] = { + [0] = { + GENMASK_ULL(63, 0), + GENMASK_ULL(63, 0), + }, + [1] = { + GENMASK_ULL(63, 0), + GENMASK_ULL(63, 0), + }, + }, + }, + + .hash_ctrl = { + [NIX_INTF_RX] = { + [0] = GENMASK_ULL(63, 32), /* MSB 32 bit is mask and LSB 32 bit is offset. */ + [1] = GENMASK_ULL(63, 32), /* MSB 32 bit is mask and LSB 32 bit is offset. */ + }, + + [NIX_INTF_TX] = { + [0] = GENMASK_ULL(63, 32), /* MSB 32 bit is mask and LSB 32 bit is offset. */ + [1] = GENMASK_ULL(63, 32), /* MSB 32 bit is mask and LSB 32 bit is offset. */ + }, + }, +}; + +/* If exact match table support is enabled, enable drop rules */ +#define NPC_MCAM_DROP_RULE_MAX 30 +#define NPC_MCAM_SDP_DROP_RULE_IDX 0 + +#define RVU_PFFUNC(pf, func) \ + ((((pf) & RVU_PFVF_PF_MASK) << RVU_PFVF_PF_SHIFT) | \ + (((func) & RVU_PFVF_FUNC_MASK) << RVU_PFVF_FUNC_SHIFT)) + +enum npc_exact_opc_type { + NPC_EXACT_OPC_MEM, + NPC_EXACT_OPC_CAM, +}; + +struct npc_exact_table_entry { + struct list_head list; + struct list_head glist; + u32 seq_id; /* Sequence number of entry */ + u32 index; /* Mem table or cam table index */ + u32 mcam_idx; + /* Mcam index. This is valid only if "cmd" field is false */ + enum npc_exact_opc_type opc_type; + u16 chan; + u16 pcifunc; + u8 ways; + u8 mac[ETH_ALEN]; + u8 ctype; + u8 cgx_id; + u8 lmac_id; + bool cmd; /* Is added by ethtool command ? */ +}; + +struct npc_exact_table { + struct mutex lock; /* entries update lock */ + unsigned long *id_bmap; + int num_drop_rules; + u32 tot_ids; + u16 cnt_cmd_rules[NPC_MCAM_DROP_RULE_MAX]; + u16 counter_idx[NPC_MCAM_DROP_RULE_MAX]; + bool promisc_mode[NPC_MCAM_DROP_RULE_MAX]; + struct { + int ways; + int depth; + unsigned long *bmap; + u64 mask; // Masks before hash calculation. + u16 hash_mask; // 11 bits for hash mask + u16 hash_offset; // 11 bits offset + } mem_table; + + struct { + int depth; + unsigned long *bmap; + } cam_table; + + struct { + bool valid; + u16 chan_val; + u16 chan_mask; + u16 pcifunc; + u8 drop_rule_idx; + } drop_rule_map[NPC_MCAM_DROP_RULE_MAX]; + +#define NPC_EXACT_TBL_MAX_WAYS 4 + + struct list_head lhead_mem_tbl_entry[NPC_EXACT_TBL_MAX_WAYS]; + int mem_tbl_entry_cnt; + + struct list_head lhead_cam_tbl_entry; + int cam_tbl_entry_cnt; + + struct list_head lhead_gbl; +}; + +bool rvu_npc_exact_has_match_table(struct rvu *rvu); +u32 rvu_npc_exact_get_max_entries(struct rvu *rvu); +int rvu_npc_exact_init(struct rvu *rvu); +int rvu_npc_exact_mac_addr_reset(struct rvu *rvu, struct cgx_mac_addr_reset_req *req, + struct msg_rsp *rsp); + +int rvu_npc_exact_mac_addr_update(struct rvu *rvu, + struct cgx_mac_addr_update_req *req, + struct cgx_mac_addr_update_rsp *rsp); + +int rvu_npc_exact_mac_addr_add(struct rvu *rvu, + struct cgx_mac_addr_add_req *req, + struct cgx_mac_addr_add_rsp *rsp); + +int rvu_npc_exact_mac_addr_del(struct rvu *rvu, + struct cgx_mac_addr_del_req *req, + struct msg_rsp *rsp); + +int rvu_npc_exact_mac_addr_set(struct rvu *rvu, struct cgx_mac_addr_set_or_get *req, + struct cgx_mac_addr_set_or_get *rsp); + +void rvu_npc_exact_reset(struct rvu *rvu, u16 pcifunc); + +bool rvu_npc_exact_can_disable_feature(struct rvu *rvu); +void rvu_npc_exact_disable_feature(struct rvu *rvu); +void rvu_npc_exact_reset(struct rvu *rvu, u16 pcifunc); +u16 rvu_npc_exact_drop_rule_to_pcifunc(struct rvu *rvu, u32 drop_rule_idx); +int rvu_npc_exact_promisc_disable(struct rvu *rvu, u16 pcifunc); +int rvu_npc_exact_promisc_enable(struct rvu *rvu, u16 pcifunc); +#endif /* RVU_NPC_HASH_H */ diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rvu_reg.c b/drivers/net/ethernet/marvell/octeontx2/af/rvu_reg.c new file mode 100644 index 000000000..d46ac29ad --- /dev/null +++ b/drivers/net/ethernet/marvell/octeontx2/af/rvu_reg.c @@ -0,0 +1,68 @@ +// SPDX-License-Identifier: GPL-2.0 +/* Marvell RVU Admin Function driver + * + * Copyright (C) 2018 Marvell. + * + */ + +#include <linux/module.h> +#include <linux/pci.h> + +#include "rvu_struct.h" +#include "common.h" +#include "mbox.h" +#include "rvu.h" + +struct reg_range { + u64 start; + u64 end; +}; + +struct hw_reg_map { + u8 regblk; + u8 num_ranges; + u64 mask; +#define MAX_REG_RANGES 8 + struct reg_range range[MAX_REG_RANGES]; +}; + +static struct hw_reg_map txsch_reg_map[NIX_TXSCH_LVL_CNT] = { + {NIX_TXSCH_LVL_SMQ, 2, 0xFFFF, {{0x0700, 0x0708}, {0x1400, 0x14C8} } }, + {NIX_TXSCH_LVL_TL4, 3, 0xFFFF, {{0x0B00, 0x0B08}, {0x0B10, 0x0B18}, + {0x1200, 0x12E0} } }, + {NIX_TXSCH_LVL_TL3, 4, 0xFFFF, {{0x1000, 0x10E0}, {0x1600, 0x1608}, + {0x1610, 0x1618}, {0x1700, 0x17C8} } }, + {NIX_TXSCH_LVL_TL2, 2, 0xFFFF, {{0x0E00, 0x0EE0}, {0x1700, 0x17C8} } }, + {NIX_TXSCH_LVL_TL1, 1, 0xFFFF, {{0x0C00, 0x0D98} } }, +}; + +bool rvu_check_valid_reg(int regmap, int regblk, u64 reg) +{ + int idx; + struct hw_reg_map *map; + + /* Only 64bit offsets */ + if (reg & 0x07) + return false; + + if (regmap == TXSCHQ_HWREGMAP) { + if (regblk >= NIX_TXSCH_LVL_CNT) + return false; + map = &txsch_reg_map[regblk]; + } else { + return false; + } + + /* Should never happen */ + if (map->regblk != regblk) + return false; + + reg &= map->mask; + + for (idx = 0; idx < map->num_ranges; idx++) { + if (reg >= map->range[idx].start && + reg < map->range[idx].end) + return true; + } + return false; +} diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rvu_reg.h b/drivers/net/ethernet/marvell/octeontx2/af/rvu_reg.h new file mode 100644 index 000000000..b690e5566 --- /dev/null +++ b/drivers/net/ethernet/marvell/octeontx2/af/rvu_reg.h @@ -0,0 +1,733 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* Marvell RVU Admin Function driver + * + * Copyright (C) 2018 Marvell. + * + */ + +#ifndef RVU_REG_H +#define RVU_REG_H + +/* Admin function registers */ +#define RVU_AF_MSIXTR_BASE (0x10) +#define RVU_AF_ECO (0x20) +#define RVU_AF_BLK_RST (0x30) +#define RVU_AF_PF_BAR4_ADDR (0x40) +#define RVU_AF_RAS (0x100) +#define RVU_AF_RAS_W1S (0x108) +#define RVU_AF_RAS_ENA_W1S (0x110) +#define RVU_AF_RAS_ENA_W1C (0x118) +#define RVU_AF_GEN_INT (0x120) +#define RVU_AF_GEN_INT_W1S (0x128) +#define RVU_AF_GEN_INT_ENA_W1S (0x130) +#define RVU_AF_GEN_INT_ENA_W1C (0x138) +#define RVU_AF_AFPF_MBOX0 (0x02000) +#define RVU_AF_AFPF_MBOX1 (0x02008) +#define RVU_AF_AFPFX_MBOXX(a, b) (0x2000 | (a) << 4 | (b) << 3) +#define RVU_AF_PFME_STATUS (0x2800) +#define RVU_AF_PFTRPEND (0x2810) +#define RVU_AF_PFTRPEND_W1S (0x2820) +#define RVU_AF_PF_RST (0x2840) +#define RVU_AF_HWVF_RST (0x2850) +#define RVU_AF_PFAF_MBOX_INT (0x2880) +#define RVU_AF_PFAF_MBOX_INT_W1S (0x2888) +#define RVU_AF_PFAF_MBOX_INT_ENA_W1S (0x2890) +#define RVU_AF_PFAF_MBOX_INT_ENA_W1C (0x2898) +#define RVU_AF_PFFLR_INT (0x28a0) +#define RVU_AF_PFFLR_INT_W1S (0x28a8) +#define RVU_AF_PFFLR_INT_ENA_W1S (0x28b0) +#define RVU_AF_PFFLR_INT_ENA_W1C (0x28b8) +#define RVU_AF_PFME_INT (0x28c0) +#define RVU_AF_PFME_INT_W1S (0x28c8) +#define RVU_AF_PFME_INT_ENA_W1S (0x28d0) +#define RVU_AF_PFME_INT_ENA_W1C (0x28d8) +#define RVU_AF_PFX_BAR4_ADDR(a) (0x5000 | (a) << 4) +#define RVU_AF_PFX_BAR4_CFG (0x5200 | (a) << 4) +#define RVU_AF_PFX_VF_BAR4_ADDR (0x5400 | (a) << 4) +#define RVU_AF_PFX_VF_BAR4_CFG (0x5600 | (a) << 4) +#define RVU_AF_PFX_LMTLINE_ADDR (0x5800 | (a) << 4) +#define RVU_AF_SMMU_ADDR_REQ (0x6000) +#define RVU_AF_SMMU_TXN_REQ (0x6008) +#define RVU_AF_SMMU_ADDR_RSP_STS (0x6010) +#define RVU_AF_SMMU_ADDR_TLN (0x6018) +#define RVU_AF_SMMU_TLN_FLIT0 (0x6020) + +/* Admin function's privileged PF/VF registers */ +#define RVU_PRIV_CONST (0x8000000) +#define RVU_PRIV_GEN_CFG (0x8000010) +#define RVU_PRIV_CLK_CFG (0x8000020) +#define RVU_PRIV_ACTIVE_PC (0x8000030) +#define RVU_PRIV_PFX_CFG(a) (0x8000100 | (a) << 16) +#define RVU_PRIV_PFX_MSIX_CFG(a) (0x8000110 | (a) << 16) +#define RVU_PRIV_PFX_ID_CFG(a) (0x8000120 | (a) << 16) +#define RVU_PRIV_PFX_INT_CFG(a) (0x8000200 | (a) << 16) +#define RVU_PRIV_PFX_NIXX_CFG(a) (0x8000300 | (a) << 3) +#define RVU_PRIV_PFX_NPA_CFG (0x8000310) +#define RVU_PRIV_PFX_SSO_CFG (0x8000320) +#define RVU_PRIV_PFX_SSOW_CFG (0x8000330) +#define RVU_PRIV_PFX_TIM_CFG (0x8000340) +#define RVU_PRIV_PFX_CPTX_CFG(a) (0x8000350 | (a) << 3) +#define RVU_PRIV_BLOCK_TYPEX_REV(a) (0x8000400 | (a) << 3) +#define RVU_PRIV_HWVFX_INT_CFG(a) (0x8001280 | (a) << 16) +#define RVU_PRIV_HWVFX_NIXX_CFG(a) (0x8001300 | (a) << 3) +#define RVU_PRIV_HWVFX_NPA_CFG (0x8001310) +#define RVU_PRIV_HWVFX_SSO_CFG (0x8001320) +#define RVU_PRIV_HWVFX_SSOW_CFG (0x8001330) +#define RVU_PRIV_HWVFX_TIM_CFG (0x8001340) +#define RVU_PRIV_HWVFX_CPTX_CFG(a) (0x8001350 | (a) << 3) + +/* RVU PF registers */ +#define RVU_PF_VFX_PFVF_MBOX0 (0x00000) +#define RVU_PF_VFX_PFVF_MBOX1 (0x00008) +#define RVU_PF_VFX_PFVF_MBOXX(a, b) (0x0 | (a) << 12 | (b) << 3) +#define RVU_PF_VF_BAR4_ADDR (0x10) +#define RVU_PF_BLOCK_ADDRX_DISC(a) (0x200 | (a) << 3) +#define RVU_PF_VFME_STATUSX(a) (0x800 | (a) << 3) +#define RVU_PF_VFTRPENDX(a) (0x820 | (a) << 3) +#define RVU_PF_VFTRPEND_W1SX(a) (0x840 | (a) << 3) +#define RVU_PF_VFPF_MBOX_INTX(a) (0x880 | (a) << 3) +#define RVU_PF_VFPF_MBOX_INT_W1SX(a) (0x8A0 | (a) << 3) +#define RVU_PF_VFPF_MBOX_INT_ENA_W1SX(a) (0x8C0 | (a) << 3) +#define RVU_PF_VFPF_MBOX_INT_ENA_W1CX(a) (0x8E0 | (a) << 3) +#define RVU_PF_VFFLR_INTX(a) (0x900 | (a) << 3) +#define RVU_PF_VFFLR_INT_W1SX(a) (0x920 | (a) << 3) +#define RVU_PF_VFFLR_INT_ENA_W1SX(a) (0x940 | (a) << 3) +#define RVU_PF_VFFLR_INT_ENA_W1CX(a) (0x960 | (a) << 3) +#define RVU_PF_VFME_INTX(a) (0x980 | (a) << 3) +#define RVU_PF_VFME_INT_W1SX(a) (0x9A0 | (a) << 3) +#define RVU_PF_VFME_INT_ENA_W1SX(a) (0x9C0 | (a) << 3) +#define RVU_PF_VFME_INT_ENA_W1CX(a) (0x9E0 | (a) << 3) +#define RVU_PF_PFAF_MBOX0 (0xC00) +#define RVU_PF_PFAF_MBOX1 (0xC08) +#define RVU_PF_PFAF_MBOXX(a) (0xC00 | (a) << 3) +#define RVU_PF_INT (0xc20) +#define RVU_PF_INT_W1S (0xc28) +#define RVU_PF_INT_ENA_W1S (0xc30) +#define RVU_PF_INT_ENA_W1C (0xc38) +#define RVU_PF_MSIX_VECX_ADDR(a) (0x000 | (a) << 4) +#define RVU_PF_MSIX_VECX_CTL(a) (0x008 | (a) << 4) +#define RVU_PF_MSIX_PBAX(a) (0xF0000 | (a) << 3) +#define RVU_PF_VF_MBOX_ADDR (0xC40) +#define RVU_PF_LMTLINE_ADDR (0xC48) + +/* RVU VF registers */ +#define RVU_VF_VFPF_MBOX0 (0x00000) +#define RVU_VF_VFPF_MBOX1 (0x00008) + +/* NPA block's admin function registers */ +#define NPA_AF_BLK_RST (0x0000) +#define NPA_AF_CONST (0x0010) +#define NPA_AF_CONST1 (0x0018) +#define NPA_AF_LF_RST (0x0020) +#define NPA_AF_GEN_CFG (0x0030) +#define NPA_AF_NDC_CFG (0x0040) +#define NPA_AF_INP_CTL (0x00D0) +#define NPA_AF_ACTIVE_CYCLES_PC (0x00F0) +#define NPA_AF_AVG_DELAY (0x0100) +#define NPA_AF_GEN_INT (0x0140) +#define NPA_AF_GEN_INT_W1S (0x0148) +#define NPA_AF_GEN_INT_ENA_W1S (0x0150) +#define NPA_AF_GEN_INT_ENA_W1C (0x0158) +#define NPA_AF_RVU_INT (0x0160) +#define NPA_AF_RVU_INT_W1S (0x0168) +#define NPA_AF_RVU_INT_ENA_W1S (0x0170) +#define NPA_AF_RVU_INT_ENA_W1C (0x0178) +#define NPA_AF_ERR_INT (0x0180) +#define NPA_AF_ERR_INT_W1S (0x0188) +#define NPA_AF_ERR_INT_ENA_W1S (0x0190) +#define NPA_AF_ERR_INT_ENA_W1C (0x0198) +#define NPA_AF_RAS (0x01A0) +#define NPA_AF_RAS_W1S (0x01A8) +#define NPA_AF_RAS_ENA_W1S (0x01B0) +#define NPA_AF_RAS_ENA_W1C (0x01B8) +#define NPA_AF_BP_TEST (0x0200) +#define NPA_AF_ECO (0x0300) +#define NPA_AF_AQ_CFG (0x0600) +#define NPA_AF_AQ_BASE (0x0610) +#define NPA_AF_AQ_STATUS (0x0620) +#define NPA_AF_AQ_DOOR (0x0630) +#define NPA_AF_AQ_DONE_WAIT (0x0640) +#define NPA_AF_AQ_DONE (0x0650) +#define NPA_AF_AQ_DONE_ACK (0x0660) +#define NPA_AF_AQ_DONE_INT (0x0680) +#define NPA_AF_AQ_DONE_INT_W1S (0x0688) +#define NPA_AF_AQ_DONE_ENA_W1S (0x0690) +#define NPA_AF_AQ_DONE_ENA_W1C (0x0698) +#define NPA_AF_BATCH_CTL (0x06a0) +#define NPA_AF_LFX_AURAS_CFG(a) (0x4000 | (a) << 18) +#define NPA_AF_LFX_LOC_AURAS_BASE(a) (0x4010 | (a) << 18) +#define NPA_AF_LFX_QINTS_CFG(a) (0x4100 | (a) << 18) +#define NPA_AF_LFX_QINTS_BASE(a) (0x4110 | (a) << 18) +#define NPA_PRIV_AF_INT_CFG (0x10000) +#define NPA_PRIV_LFX_CFG (0x10010) +#define NPA_PRIV_LFX_INT_CFG (0x10020) +#define NPA_AF_RVU_LF_CFG_DEBUG (0x10030) + +/* NIX block's admin function registers */ +#define NIX_AF_CFG (0x0000) +#define NIX_AF_STATUS (0x0010) +#define NIX_AF_NDC_CFG (0x0018) +#define NIX_AF_CONST (0x0020) +#define NIX_AF_CONST1 (0x0028) +#define NIX_AF_CONST2 (0x0030) +#define NIX_AF_CONST3 (0x0038) +#define NIX_AF_SQ_CONST (0x0040) +#define NIX_AF_CQ_CONST (0x0048) +#define NIX_AF_RQ_CONST (0x0050) +#define NIX_AF_PL_CONST (0x0058) +#define NIX_AF_PSE_CONST (0x0060) +#define NIX_AF_TL1_CONST (0x0070) +#define NIX_AF_TL2_CONST (0x0078) +#define NIX_AF_TL3_CONST (0x0080) +#define NIX_AF_TL4_CONST (0x0088) +#define NIX_AF_MDQ_CONST (0x0090) +#define NIX_AF_MC_MIRROR_CONST (0x0098) +#define NIX_AF_LSO_CFG (0x00A8) +#define NIX_AF_BLK_RST (0x00B0) +#define NIX_AF_TX_TSTMP_CFG (0x00C0) +#define NIX_AF_PL_TS (0x00C8) +#define NIX_AF_RX_CFG (0x00D0) +#define NIX_AF_AVG_DELAY (0x00E0) +#define NIX_AF_CINT_DELAY (0x00F0) +#define NIX_AF_RX_MCAST_BASE (0x0100) +#define NIX_AF_RX_MCAST_CFG (0x0110) +#define NIX_AF_RX_MCAST_BUF_BASE (0x0120) +#define NIX_AF_RX_MCAST_BUF_CFG (0x0130) +#define NIX_AF_RX_MIRROR_BUF_BASE (0x0140) +#define NIX_AF_RX_MIRROR_BUF_CFG (0x0148) +#define NIX_AF_LF_RST (0x0150) +#define NIX_AF_GEN_INT (0x0160) +#define NIX_AF_GEN_INT_W1S (0x0168) +#define NIX_AF_GEN_INT_ENA_W1S (0x0170) +#define NIX_AF_GEN_INT_ENA_W1C (0x0178) +#define NIX_AF_ERR_INT (0x0180) +#define NIX_AF_ERR_INT_W1S (0x0188) +#define NIX_AF_ERR_INT_ENA_W1S (0x0190) +#define NIX_AF_ERR_INT_ENA_W1C (0x0198) +#define NIX_AF_RAS (0x01A0) +#define NIX_AF_RAS_W1S (0x01A8) +#define NIX_AF_RAS_ENA_W1S (0x01B0) +#define NIX_AF_RAS_ENA_W1C (0x01B8) +#define NIX_AF_RVU_INT (0x01C0) +#define NIX_AF_RVU_INT_W1S (0x01C8) +#define NIX_AF_RVU_INT_ENA_W1S (0x01D0) +#define NIX_AF_RVU_INT_ENA_W1C (0x01D8) +#define NIX_AF_TCP_TIMER (0x01E0) +#define NIX_AF_RX_DEF_ET(a) (0x01F0ull | (uint64_t)(a) << 3) +#define NIX_AF_RX_DEF_OL2 (0x0200) +#define NIX_AF_RX_DEF_OIP4 (0x0210) +#define NIX_AF_RX_DEF_IIP4 (0x0220) +#define NIX_AF_RX_DEF_VLAN0_PCP_DEI (0x0228) +#define NIX_AF_RX_DEF_OIP6 (0x0230) +#define NIX_AF_RX_DEF_VLAN1_PCP_DEI (0x0238) +#define NIX_AF_RX_DEF_IIP6 (0x0240) +#define NIX_AF_RX_DEF_OTCP (0x0250) +#define NIX_AF_RX_DEF_ITCP (0x0260) +#define NIX_AF_RX_DEF_OUDP (0x0270) +#define NIX_AF_RX_DEF_IUDP (0x0280) +#define NIX_AF_RX_DEF_OSCTP (0x0290) +#define NIX_AF_RX_DEF_CST_APAD0 (0x0298) +#define NIX_AF_RX_DEF_ISCTP (0x02A0) +#define NIX_AF_RX_DEF_IPSECX (0x02B0) +#define NIX_AF_RX_DEF_CST_APAD1 (0x02A8) +#define NIX_AF_RX_DEF_IIP4_DSCP (0x02E0) +#define NIX_AF_RX_DEF_OIP4_DSCP (0x02E8) +#define NIX_AF_RX_DEF_IIP6_DSCP (0x02F0) +#define NIX_AF_RX_DEF_OIP6_DSCP (0x02F8) +#define NIX_AF_RX_IPSEC_GEN_CFG (0x0300) +#define NIX_AF_RX_CPTX_INST_ADDR (0x0310) +#define NIX_AF_RX_CPTX_INST_QSEL(a) (0x0320ull | (uint64_t)(a) << 3) +#define NIX_AF_RX_CPTX_CREDIT(a) (0x0360ull | (uint64_t)(a) << 3) +#define NIX_AF_NDC_TX_SYNC (0x03F0) +#define NIX_AF_AQ_CFG (0x0400) +#define NIX_AF_AQ_BASE (0x0410) +#define NIX_AF_AQ_STATUS (0x0420) +#define NIX_AF_AQ_DOOR (0x0430) +#define NIX_AF_AQ_DONE_WAIT (0x0440) +#define NIX_AF_AQ_DONE (0x0450) +#define NIX_AF_AQ_DONE_ACK (0x0460) +#define NIX_AF_AQ_DONE_TIMER (0x0470) +#define NIX_AF_AQ_DONE_INT (0x0480) +#define NIX_AF_AQ_DONE_INT_W1S (0x0488) +#define NIX_AF_AQ_DONE_ENA_W1S (0x0490) +#define NIX_AF_AQ_DONE_ENA_W1C (0x0498) +#define NIX_AF_RX_LINKX_SLX_SPKT_CNT (0x0500) +#define NIX_AF_RX_LINKX_SLX_SXQE_CNT (0x0510) +#define NIX_AF_RX_MCAST_JOBSX_SW_CNT (0x0520) +#define NIX_AF_RX_MIRROR_JOBSX_SW_CNT (0x0530) +#define NIX_AF_RX_LINKX_CFG(a) (0x0540 | (a) << 16) +#define NIX_AF_RX_SW_SYNC (0x0550) +#define NIX_AF_RX_SW_SYNC_DONE (0x0560) +#define NIX_AF_SEB_ECO (0x0600) +#define NIX_AF_SEB_TEST_BP (0x0610) +#define NIX_AF_NORM_TX_FIFO_STATUS (0x0620) +#define NIX_AF_EXPR_TX_FIFO_STATUS (0x0630) +#define NIX_AF_SDP_TX_FIFO_STATUS (0x0640) +#define NIX_AF_TX_NPC_CAPTURE_CONFIG (0x0660) +#define NIX_AF_TX_NPC_CAPTURE_INFO (0x0670) +#define NIX_AF_SEB_CFG (0x05F0) +#define NIX_PTP_1STEP_EN BIT_ULL(2) + +#define NIX_AF_DEBUG_NPC_RESP_DATAX(a) (0x680 | (a) << 3) +#define NIX_AF_SMQX_CFG(a) (0x700 | (a) << 16) +#define NIX_AF_SQM_DBG_CTL_STATUS (0x750) +#define NIX_AF_DWRR_SDP_MTU (0x790) +#define NIX_AF_DWRR_RPM_MTU (0x7A0) +#define NIX_AF_PSE_CHANNEL_LEVEL (0x800) +#define NIX_AF_PSE_SHAPER_CFG (0x810) +#define NIX_AF_TX_EXPR_CREDIT (0x830) +#define NIX_AF_MARK_FORMATX_CTL(a) (0x900 | (a) << 18) +#define NIX_AF_TX_LINKX_NORM_CREDIT(a) (0xA00 | (a) << 16) +#define NIX_AF_TX_LINKX_EXPR_CREDIT(a) (0xA10 | (a) << 16) +#define NIX_AF_TX_LINKX_SW_XOFF(a) (0xA20 | (a) << 16) +#define NIX_AF_TX_LINKX_HW_XOFF(a) (0xA30 | (a) << 16) +#define NIX_AF_SDP_LINK_CREDIT (0xa40) +#define NIX_AF_SDP_SW_XOFFX(a) (0xA60 | (a) << 3) +#define NIX_AF_SDP_HW_XOFFX(a) (0xAC0 | (a) << 3) +#define NIX_AF_TL4X_BP_STATUS(a) (0xB00 | (a) << 16) +#define NIX_AF_TL4X_SDP_LINK_CFG(a) (0xB10 | (a) << 16) +#define NIX_AF_TL1X_SCHEDULE(a) (0xC00 | (a) << 16) +#define NIX_AF_TL1X_SHAPE(a) (0xC10 | (a) << 16) +#define NIX_AF_TL1X_CIR(a) (0xC20 | (a) << 16) +#define NIX_AF_TL1X_SHAPE_STATE(a) (0xC50 | (a) << 16) +#define NIX_AF_TL1X_SW_XOFF(a) (0xC70 | (a) << 16) +#define NIX_AF_TL1X_TOPOLOGY(a) (0xC80 | (a) << 16) +#define NIX_AF_TL1X_GREEN(a) (0xC90 | (a) << 16) +#define NIX_AF_TL1X_YELLOW(a) (0xCA0 | (a) << 16) +#define NIX_AF_TL1X_RED(a) (0xCB0 | (a) << 16) +#define NIX_AF_TL1X_MD_DEBUG0(a) (0xCC0 | (a) << 16) +#define NIX_AF_TL1X_MD_DEBUG1(a) (0xCC8 | (a) << 16) +#define NIX_AF_TL1X_MD_DEBUG2(a) (0xCD0 | (a) << 16) +#define NIX_AF_TL1X_MD_DEBUG3(a) (0xCD8 | (a) << 16) +#define NIX_AF_TL1A_DEBUG (0xce0) +#define NIX_AF_TL1B_DEBUG (0xcf0) +#define NIX_AF_TL1_DEBUG_GREEN (0xd00) +#define NIX_AF_TL1_DEBUG_NODE (0xd10) +#define NIX_AF_TL1X_DROPPED_PACKETS(a) (0xD20 | (a) << 16) +#define NIX_AF_TL1X_DROPPED_BYTES(a) (0xD30 | (a) << 16) +#define NIX_AF_TL1X_RED_PACKETS(a) (0xD40 | (a) << 16) +#define NIX_AF_TL1X_RED_BYTES(a) (0xD50 | (a) << 16) +#define NIX_AF_TL1X_YELLOW_PACKETS(a) (0xD60 | (a) << 16) +#define NIX_AF_TL1X_YELLOW_BYTES(a) (0xD70 | (a) << 16) +#define NIX_AF_TL1X_GREEN_PACKETS(a) (0xD80 | (a) << 16) +#define NIX_AF_TL1X_GREEN_BYTES(a) (0xD90 | (a) << 16) +#define NIX_AF_TL2X_SCHEDULE(a) (0xE00 | (a) << 16) +#define NIX_AF_TL2X_SHAPE(a) (0xE10 | (a) << 16) +#define NIX_AF_TL2X_CIR(a) (0xE20 | (a) << 16) +#define NIX_AF_TL2X_PIR(a) (0xE30 | (a) << 16) +#define NIX_AF_TL2X_SCHED_STATE(a) (0xE40 | (a) << 16) +#define NIX_AF_TL2X_SHAPE_STATE(a) (0xE50 | (a) << 16) +#define NIX_AF_TL2X_POINTERS(a) (0xE60 | (a) << 16) +#define NIX_AF_TL2X_SW_XOFF(a) (0xE70 | (a) << 16) +#define NIX_AF_TL2X_TOPOLOGY(a) (0xE80 | (a) << 16) +#define NIX_AF_TL2X_PARENT(a) (0xE88 | (a) << 16) +#define NIX_AF_TL2X_GREEN(a) (0xE90 | (a) << 16) +#define NIX_AF_TL2X_YELLOW(a) (0xEA0 | (a) << 16) +#define NIX_AF_TL2X_RED(a) (0xEB0 | (a) << 16) +#define NIX_AF_TL2X_MD_DEBUG0(a) (0xEC0 | (a) << 16) +#define NIX_AF_TL2X_MD_DEBUG1(a) (0xEC8 | (a) << 16) +#define NIX_AF_TL2X_MD_DEBUG2(a) (0xED0 | (a) << 16) +#define NIX_AF_TL2X_MD_DEBUG3(a) (0xED8 | (a) << 16) +#define NIX_AF_TL2A_DEBUG (0xee0) +#define NIX_AF_TL2B_DEBUG (0xef0) +#define NIX_AF_TL3X_SCHEDULE(a) (0x1000 | (a) << 16) +#define NIX_AF_TL3X_SHAPE(a) (0x1010 | (a) << 16) +#define NIX_AF_TL3X_CIR(a) (0x1020 | (a) << 16) +#define NIX_AF_TL3X_PIR(a) (0x1030 | (a) << 16) +#define NIX_AF_TL3X_SCHED_STATE(a) (0x1040 | (a) << 16) +#define NIX_AF_TL3X_SHAPE_STATE(a) (0x1050 | (a) << 16) +#define NIX_AF_TL3X_POINTERS(a) (0x1060 | (a) << 16) +#define NIX_AF_TL3X_SW_XOFF(a) (0x1070 | (a) << 16) +#define NIX_AF_TL3X_TOPOLOGY(a) (0x1080 | (a) << 16) +#define NIX_AF_TL3X_PARENT(a) (0x1088 | (a) << 16) +#define NIX_AF_TL3X_GREEN(a) (0x1090 | (a) << 16) +#define NIX_AF_TL3X_YELLOW(a) (0x10A0 | (a) << 16) +#define NIX_AF_TL3X_RED(a) (0x10B0 | (a) << 16) +#define NIX_AF_TL3X_MD_DEBUG0(a) (0x10C0 | (a) << 16) +#define NIX_AF_TL3X_MD_DEBUG1(a) (0x10C8 | (a) << 16) +#define NIX_AF_TL3X_MD_DEBUG2(a) (0x10D0 | (a) << 16) +#define NIX_AF_TL3X_MD_DEBUG3(a) (0x10D8 | (a) << 16) +#define NIX_AF_TL3A_DEBUG (0x10e0) +#define NIX_AF_TL3B_DEBUG (0x10f0) +#define NIX_AF_TL4X_SCHEDULE(a) (0x1200 | (a) << 16) +#define NIX_AF_TL4X_SHAPE(a) (0x1210 | (a) << 16) +#define NIX_AF_TL4X_CIR(a) (0x1220 | (a) << 16) +#define NIX_AF_TL4X_PIR(a) (0x1230 | (a) << 16) +#define NIX_AF_TL4X_SCHED_STATE(a) (0x1240 | (a) << 16) +#define NIX_AF_TL4X_SHAPE_STATE(a) (0x1250 | (a) << 16) +#define NIX_AF_TL4X_POINTERS(a) (0x1260 | (a) << 16) +#define NIX_AF_TL4X_SW_XOFF(a) (0x1270 | (a) << 16) +#define NIX_AF_TL4X_TOPOLOGY(a) (0x1280 | (a) << 16) +#define NIX_AF_TL4X_PARENT(a) (0x1288 | (a) << 16) +#define NIX_AF_TL4X_GREEN(a) (0x1290 | (a) << 16) +#define NIX_AF_TL4X_YELLOW(a) (0x12A0 | (a) << 16) +#define NIX_AF_TL4X_RED(a) (0x12B0 | (a) << 16) +#define NIX_AF_TL4X_MD_DEBUG0(a) (0x12C0 | (a) << 16) +#define NIX_AF_TL4X_MD_DEBUG1(a) (0x12C8 | (a) << 16) +#define NIX_AF_TL4X_MD_DEBUG2(a) (0x12D0 | (a) << 16) +#define NIX_AF_TL4X_MD_DEBUG3(a) (0x12D8 | (a) << 16) +#define NIX_AF_TL4A_DEBUG (0x12e0) +#define NIX_AF_TL4B_DEBUG (0x12f0) +#define NIX_AF_MDQX_SCHEDULE(a) (0x1400 | (a) << 16) +#define NIX_AF_MDQX_SHAPE(a) (0x1410 | (a) << 16) +#define NIX_AF_MDQX_CIR(a) (0x1420 | (a) << 16) +#define NIX_AF_MDQX_PIR(a) (0x1430 | (a) << 16) +#define NIX_AF_MDQX_SCHED_STATE(a) (0x1440 | (a) << 16) +#define NIX_AF_MDQX_SHAPE_STATE(a) (0x1450 | (a) << 16) +#define NIX_AF_MDQX_POINTERS(a) (0x1460 | (a) << 16) +#define NIX_AF_MDQX_SW_XOFF(a) (0x1470 | (a) << 16) +#define NIX_AF_MDQX_PARENT(a) (0x1480 | (a) << 16) +#define NIX_AF_MDQX_MD_DEBUG(a) (0x14C0 | (a) << 16) +#define NIX_AF_MDQX_PTR_FIFO(a) (0x14D0 | (a) << 16) +#define NIX_AF_MDQA_DEBUG (0x14e0) +#define NIX_AF_MDQB_DEBUG (0x14f0) +#define NIX_AF_TL3_TL2X_CFG(a) (0x1600 | (a) << 18) +#define NIX_AF_TL3_TL2X_BP_STATUS(a) (0x1610 | (a) << 16) +#define NIX_AF_TL3_TL2X_LINKX_CFG(a, b) (0x1700 | (a) << 16 | (b) << 3) +#define NIX_AF_RX_FLOW_KEY_ALGX_FIELDX(a, b) (0x1800 | (a) << 18 | (b) << 3) +#define NIX_AF_TX_MCASTX(a) (0x1900 | (a) << 15) +#define NIX_AF_TX_VTAG_DEFX_CTL(a) (0x1A00 | (a) << 16) +#define NIX_AF_TX_VTAG_DEFX_DATA(a) (0x1A10 | (a) << 16) +#define NIX_AF_RX_BPIDX_STATUS(a) (0x1A20 | (a) << 17) +#define NIX_AF_RX_CHANX_CFG(a) (0x1A30 | (a) << 15) +#define NIX_AF_CINT_TIMERX(a) (0x1A40 | (a) << 18) +#define NIX_AF_LSO_FORMATX_FIELDX(a, b) (0x1B00 | (a) << 16 | (b) << 3) +#define NIX_AF_LFX_CFG(a) (0x4000 | (a) << 17) +#define NIX_AF_LFX_SQS_CFG(a) (0x4020 | (a) << 17) +#define NIX_AF_LFX_TX_CFG2(a) (0x4028 | (a) << 17) +#define NIX_AF_LFX_SQS_BASE(a) (0x4030 | (a) << 17) +#define NIX_AF_LFX_RQS_CFG(a) (0x4040 | (a) << 17) +#define NIX_AF_LFX_RQS_BASE(a) (0x4050 | (a) << 17) +#define NIX_AF_LFX_CQS_CFG(a) (0x4060 | (a) << 17) +#define NIX_AF_LFX_CQS_BASE(a) (0x4070 | (a) << 17) +#define NIX_AF_LFX_TX_CFG(a) (0x4080 | (a) << 17) +#define NIX_AF_LFX_TX_PARSE_CFG(a) (0x4090 | (a) << 17) +#define NIX_AF_LFX_RX_CFG(a) (0x40A0 | (a) << 17) +#define NIX_AF_LFX_RSS_CFG(a) (0x40C0 | (a) << 17) +#define NIX_AF_LFX_RSS_BASE(a) (0x40D0 | (a) << 17) +#define NIX_AF_LFX_QINTS_CFG(a) (0x4100 | (a) << 17) +#define NIX_AF_LFX_QINTS_BASE(a) (0x4110 | (a) << 17) +#define NIX_AF_LFX_CINTS_CFG(a) (0x4120 | (a) << 17) +#define NIX_AF_LFX_CINTS_BASE(a) (0x4130 | (a) << 17) +#define NIX_AF_LFX_RX_IPSEC_CFG0(a) (0x4140 | (a) << 17) +#define NIX_AF_LFX_RX_IPSEC_CFG1(a) (0x4148 | (a) << 17) +#define NIX_AF_LFX_RX_IPSEC_DYNO_CFG(a) (0x4150 | (a) << 17) +#define NIX_AF_LFX_RX_IPSEC_DYNO_BASE(a) (0x4158 | (a) << 17) +#define NIX_AF_LFX_RX_IPSEC_SA_BASE(a) (0x4170 | (a) << 17) +#define NIX_AF_LFX_TX_STATUS(a) (0x4180 | (a) << 17) +#define NIX_AF_LFX_RX_VTAG_TYPEX(a, b) (0x4200 | (a) << 17 | (b) << 3) +#define NIX_AF_LFX_LOCKX(a, b) (0x4300 | (a) << 17 | (b) << 3) +#define NIX_AF_LFX_TX_STATX(a, b) (0x4400 | (a) << 17 | (b) << 3) +#define NIX_AF_LFX_RX_STATX(a, b) (0x4500 | (a) << 17 | (b) << 3) +#define NIX_AF_LFX_RSS_GRPX(a, b) (0x4600 | (a) << 17 | (b) << 3) +#define NIX_AF_RX_NPC_MC_RCV (0x4700) +#define NIX_AF_RX_NPC_MC_DROP (0x4710) +#define NIX_AF_RX_NPC_MIRROR_RCV (0x4720) +#define NIX_AF_RX_NPC_MIRROR_DROP (0x4730) +#define NIX_AF_RX_ACTIVE_CYCLES_PCX(a) (0x4800 | (a) << 16) +#define NIX_AF_LINKX_CFG(a) (0x4010 | (a) << 17) + +#define NIX_PRIV_AF_INT_CFG (0x8000000) +#define NIX_PRIV_LFX_CFG (0x8000010) +#define NIX_PRIV_LFX_INT_CFG (0x8000020) +#define NIX_AF_RVU_LF_CFG_DEBUG (0x8000030) + +#define NIX_AF_LINKX_BASE_MASK GENMASK_ULL(11, 0) +#define NIX_AF_LINKX_RANGE_MASK GENMASK_ULL(19, 16) +#define NIX_AF_LINKX_MCS_CNT_MASK GENMASK_ULL(33, 32) + +/* SSO */ +#define SSO_AF_CONST (0x1000) +#define SSO_AF_CONST1 (0x1008) +#define SSO_AF_BLK_RST (0x10f8) +#define SSO_AF_LF_HWGRP_RST (0x10e0) +#define SSO_AF_RVU_LF_CFG_DEBUG (0x3800) +#define SSO_PRIV_LFX_HWGRP_CFG (0x10000) +#define SSO_PRIV_LFX_HWGRP_INT_CFG (0x20000) + +/* SSOW */ +#define SSOW_AF_RVU_LF_HWS_CFG_DEBUG (0x0010) +#define SSOW_AF_LF_HWS_RST (0x0030) +#define SSOW_PRIV_LFX_HWS_CFG (0x1000) +#define SSOW_PRIV_LFX_HWS_INT_CFG (0x2000) + +/* TIM */ +#define TIM_AF_CONST (0x90) +#define TIM_PRIV_LFX_CFG (0x20000) +#define TIM_PRIV_LFX_INT_CFG (0x24000) +#define TIM_AF_RVU_LF_CFG_DEBUG (0x30000) +#define TIM_AF_BLK_RST (0x10) +#define TIM_AF_LF_RST (0x20) + +/* CPT */ +#define CPT_AF_CONSTANTS0 (0x0000) +#define CPT_AF_CONSTANTS1 (0x1000) +#define CPT_AF_DIAG (0x3000) +#define CPT_AF_ECO (0x4000) +#define CPT_AF_FLTX_INT(a) (0xa000ull | (u64)(a) << 3) +#define CPT_AF_FLTX_INT_W1S(a) (0xb000ull | (u64)(a) << 3) +#define CPT_AF_FLTX_INT_ENA_W1C(a) (0xc000ull | (u64)(a) << 3) +#define CPT_AF_FLTX_INT_ENA_W1S(a) (0xd000ull | (u64)(a) << 3) +#define CPT_AF_PSNX_EXE(a) (0xe000ull | (u64)(a) << 3) +#define CPT_AF_PSNX_EXE_W1S(a) (0xf000ull | (u64)(a) << 3) +#define CPT_AF_PSNX_LF(a) (0x10000ull | (u64)(a) << 3) +#define CPT_AF_PSNX_LF_W1S(a) (0x11000ull | (u64)(a) << 3) +#define CPT_AF_EXEX_CTL2(a) (0x12000ull | (u64)(a) << 3) +#define CPT_AF_EXEX_STS(a) (0x13000ull | (u64)(a) << 3) +#define CPT_AF_EXE_ERR_INFO (0x14000) +#define CPT_AF_EXEX_ACTIVE(a) (0x16000ull | (u64)(a) << 3) +#define CPT_AF_INST_REQ_PC (0x17000) +#define CPT_AF_INST_LATENCY_PC (0x18000) +#define CPT_AF_RD_REQ_PC (0x19000) +#define CPT_AF_RD_LATENCY_PC (0x1a000) +#define CPT_AF_RD_UC_PC (0x1b000) +#define CPT_AF_ACTIVE_CYCLES_PC (0x1c000) +#define CPT_AF_EXE_DBG_CTL (0x1d000) +#define CPT_AF_EXE_DBG_DATA (0x1e000) +#define CPT_AF_EXE_REQ_TIMER (0x1f000) +#define CPT_AF_EXEX_CTL(a) (0x20000ull | (u64)(a) << 3) +#define CPT_AF_EXE_PERF_CTL (0x21000) +#define CPT_AF_EXE_DBG_CNTX(a) (0x22000ull | (u64)(a) << 3) +#define CPT_AF_EXE_PERF_EVENT_CNT (0x23000) +#define CPT_AF_EXE_EPCI_INBX_CNT(a) (0x24000ull | (u64)(a) << 3) +#define CPT_AF_EXE_EPCI_OUTBX_CNT(a) (0x25000ull | (u64)(a) << 3) +#define CPT_AF_EXEX_UCODE_BASE(a) (0x26000ull | (u64)(a) << 3) +#define CPT_AF_LFX_CTL(a) (0x27000ull | (u64)(a) << 3) +#define CPT_AF_LFX_CTL2(a) (0x29000ull | (u64)(a) << 3) +#define CPT_AF_CPTCLK_CNT (0x2a000) +#define CPT_AF_PF_FUNC (0x2b000) +#define CPT_AF_LFX_PTR_CTL(a) (0x2c000ull | (u64)(a) << 3) +#define CPT_AF_GRPX_THR(a) (0x2d000ull | (u64)(a) << 3) +#define CPT_AF_CTL (0x2e000ull) +#define CPT_AF_XEX_THR(a) (0x2f000ull | (u64)(a) << 3) +#define CPT_PRIV_LFX_CFG (0x41000) +#define CPT_PRIV_AF_INT_CFG (0x42000) +#define CPT_PRIV_LFX_INT_CFG (0x43000) +#define CPT_AF_LF_RST (0x44000) +#define CPT_AF_RVU_LF_CFG_DEBUG (0x45000) +#define CPT_AF_BLK_RST (0x46000) +#define CPT_AF_RVU_INT (0x47000) +#define CPT_AF_RVU_INT_W1S (0x47008) +#define CPT_AF_RVU_INT_ENA_W1S (0x47010) +#define CPT_AF_RVU_INT_ENA_W1C (0x47018) +#define CPT_AF_RAS_INT (0x47020) +#define CPT_AF_RAS_INT_W1S (0x47028) +#define CPT_AF_RAS_INT_ENA_W1S (0x47030) +#define CPT_AF_RAS_INT_ENA_W1C (0x47038) +#define CPT_AF_CTX_FLUSH_TIMER (0x48000ull) +#define CPT_AF_CTX_ERR (0x48008ull) +#define CPT_AF_CTX_ENC_ID (0x48010ull) +#define CPT_AF_CTX_MIS_PC (0x49400ull) +#define CPT_AF_CTX_HIT_PC (0x49408ull) +#define CPT_AF_CTX_AOP_PC (0x49410ull) +#define CPT_AF_CTX_AOP_LATENCY_PC (0x49418ull) +#define CPT_AF_CTX_IFETCH_PC (0x49420ull) +#define CPT_AF_CTX_IFETCH_LATENCY_PC (0x49428ull) +#define CPT_AF_CTX_FFETCH_PC (0x49430ull) +#define CPT_AF_CTX_FFETCH_LATENCY_PC (0x49438ull) +#define CPT_AF_CTX_WBACK_PC (0x49440ull) +#define CPT_AF_CTX_WBACK_LATENCY_PC (0x49448ull) +#define CPT_AF_CTX_PSH_PC (0x49450ull) +#define CPT_AF_CTX_PSH_LATENCY_PC (0x49458ull) +#define CPT_AF_CTX_CAM_DATA(a) (0x49800ull | (u64)(a) << 3) +#define CPT_AF_RXC_TIME (0x50010ull) +#define CPT_AF_RXC_TIME_CFG (0x50018ull) +#define CPT_AF_RXC_DFRG (0x50020ull) +#define CPT_AF_RXC_ACTIVE_STS (0x50028ull) +#define CPT_AF_RXC_ZOMBIE_STS (0x50030ull) +#define CPT_AF_X2PX_LINK_CFG(a) (0x51000ull | (u64)(a) << 3) + +#define AF_BAR2_ALIASX(a, b) (0x9100000ull | (a) << 12 | (b)) +#define CPT_AF_BAR2_SEL 0x9000000 +#define CPT_AF_BAR2_ALIASX(a, b) AF_BAR2_ALIASX(a, b) + +#define CPT_AF_LF_CTL2_SHIFT 3 +#define CPT_AF_LF_SSO_PF_FUNC_SHIFT 32 + +#define CPT_LF_CTL 0x10 +#define CPT_LF_INPROG 0x40 +#define CPT_LF_Q_GRP_PTR 0x120 +#define CPT_LF_CTX_FLUSH 0x510 + +#define NPC_AF_BLK_RST (0x00040) + +/* NPC */ +#define NPC_AF_CFG (0x00000) +#define NPC_AF_ACTIVE_PC (0x00010) +#define NPC_AF_CONST (0x00020) +#define NPC_AF_CONST1 (0x00030) +#define NPC_AF_BLK_RST (0x00040) +#define NPC_AF_MCAM_SCRUB_CTL (0x000a0) +#define NPC_AF_KCAM_SCRUB_CTL (0x000b0) +#define NPC_AF_CONST2 (0x00100) +#define NPC_AF_CONST3 (0x00110) +#define NPC_AF_KPUX_CFG(a) (0x00500 | (a) << 3) +#define NPC_AF_PCK_CFG (0x00600) +#define NPC_AF_PCK_DEF_OL2 (0x00610) +#define NPC_AF_PCK_DEF_OIP4 (0x00620) +#define NPC_AF_PCK_DEF_OIP6 (0x00630) +#define NPC_AF_PCK_DEF_IIP4 (0x00640) +#define NPC_AF_INTFX_HASHX_RESULT_CTRL(a, b) (0x006c0 | (a) << 4 | (b) << 3) +#define NPC_AF_INTFX_HASHX_MASKX(a, b, c) (0x00700 | (a) << 5 | (b) << 4 | (c) << 3) +#define NPC_AF_KEX_LDATAX_FLAGS_CFG(a) (0x00800 | (a) << 3) +#define NPC_AF_INTFX_HASHX_CFG(a, b) (0x00b00 | (a) << 6 | (b) << 4) +#define NPC_AF_INTFX_SECRET_KEY0(a) (0x00e00 | (a) << 3) +#define NPC_AF_INTFX_SECRET_KEY1(a) (0x00e20 | (a) << 3) +#define NPC_AF_INTFX_SECRET_KEY2(a) (0x00e40 | (a) << 3) +#define NPC_AF_INTFX_KEX_CFG(a) (0x01010 | (a) << 8) +#define NPC_AF_PKINDX_ACTION0(a) (0x80000ull | (a) << 6) +#define NPC_AF_PKINDX_ACTION1(a) (0x80008ull | (a) << 6) +#define NPC_AF_PKINDX_CPI_DEFX(a, b) (0x80020ull | (a) << 6 | (b) << 3) +#define NPC_AF_KPUX_ENTRYX_CAMX(a, b, c) \ + (0x100000 | (a) << 14 | (b) << 6 | (c) << 3) +#define NPC_AF_KPUX_ENTRYX_ACTION0(a, b) \ + (0x100020 | (a) << 14 | (b) << 6) +#define NPC_AF_KPUX_ENTRYX_ACTION1(a, b) \ + (0x100028 | (a) << 14 | (b) << 6) +#define NPC_AF_KPUX_ENTRY_DISX(a, b) (0x180000 | (a) << 6 | (b) << 3) +#define NPC_AF_CPIX_CFG(a) (0x200000 | (a) << 3) +#define NPC_AF_INTFX_LIDX_LTX_LDX_CFG(a, b, c, d) \ + (0x900000 | (a) << 16 | (b) << 12 | (c) << 5 | (d) << 3) +#define NPC_AF_INTFX_LDATAX_FLAGSX_CFG(a, b, c) \ + (0x980000 | (a) << 16 | (b) << 12 | (c) << 3) +#define NPC_AF_INTFX_MISS_STAT_ACT(a) (0x1880040 + (a) * 0x8) +#define NPC_AF_INTFX_MISS_ACT(a) (0x1a00000 | (a) << 4) +#define NPC_AF_INTFX_MISS_TAG_ACT(a) (0x1b00008 | (a) << 4) +#define NPC_AF_MCAM_BANKX_HITX(a, b) (0x1c80000 | (a) << 8 | (b) << 4) +#define NPC_AF_LKUP_CTL (0x2000000) +#define NPC_AF_LKUP_DATAX(a) (0x2000200 | (a) << 4) +#define NPC_AF_LKUP_RESULTX(a) (0x2000400 | (a) << 4) +#define NPC_AF_INTFX_STAT(a) (0x2000800 | (a) << 4) +#define NPC_AF_DBG_CTL (0x3000000) +#define NPC_AF_DBG_STATUS (0x3000010) +#define NPC_AF_KPUX_DBG(a) (0x3000020 | (a) << 8) +#define NPC_AF_IKPU_ERR_CTL (0x3000080) +#define NPC_AF_KPUX_ERR_CTL(a) (0x30000a0 | (a) << 8) +#define NPC_AF_MCAM_DBG (0x3001000) +#define NPC_AF_DBG_DATAX(a) (0x3001400 | (a) << 4) +#define NPC_AF_DBG_RESULTX(a) (0x3001800 | (a) << 4) + +#define NPC_AF_EXACT_MEM_ENTRY(a, b) (0x300000 | (a) << 15 | (b) << 3) +#define NPC_AF_EXACT_CAM_ENTRY(a) (0xC00 | (a) << 3) +#define NPC_AF_INTFX_EXACT_MASK(a) (0x660 | (a) << 3) +#define NPC_AF_INTFX_EXACT_RESULT_CTL(a)(0x680 | (a) << 3) +#define NPC_AF_INTFX_EXACT_CFG(a) (0xA00 | (a) << 3) +#define NPC_AF_INTFX_EXACT_SECRET0(a) (0xE00 | (a) << 3) +#define NPC_AF_INTFX_EXACT_SECRET1(a) (0xE20 | (a) << 3) +#define NPC_AF_INTFX_EXACT_SECRET2(a) (0xE40 | (a) << 3) + +#define NPC_AF_MCAMEX_BANKX_CAMX_INTF(a, b, c) ({ \ + u64 offset; \ + \ + offset = (0x1000000ull | (a) << 10 | (b) << 6 | (c) << 3); \ + if (rvu->hw->npc_ext_set) \ + offset = (0x8000000ull | (a) << 8 | (b) << 22 | (c) << 3); \ + offset; }) + +#define NPC_AF_MCAMEX_BANKX_CAMX_W0(a, b, c) ({ \ + u64 offset; \ + \ + offset = (0x1000010ull | (a) << 10 | (b) << 6 | (c) << 3); \ + if (rvu->hw->npc_ext_set) \ + offset = (0x8000010ull | (a) << 8 | (b) << 22 | (c) << 3); \ + offset; }) + +#define NPC_AF_MCAMEX_BANKX_CAMX_W1(a, b, c) ({ \ + u64 offset; \ + \ + offset = (0x1000020ull | (a) << 10 | (b) << 6 | (c) << 3); \ + if (rvu->hw->npc_ext_set) \ + offset = (0x8000020ull | (a) << 8 | (b) << 22 | (c) << 3); \ + offset; }) + +#define NPC_AF_MCAMEX_BANKX_CFG(a, b) ({ \ + u64 offset; \ + \ + offset = (0x1800000ull | (a) << 8 | (b) << 4); \ + if (rvu->hw->npc_ext_set) \ + offset = (0x8000038ull | (a) << 8 | (b) << 22); \ + offset; }) + +#define NPC_AF_MCAMEX_BANKX_ACTION(a, b) ({ \ + u64 offset; \ + \ + offset = (0x1900000ull | (a) << 8 | (b) << 4); \ + if (rvu->hw->npc_ext_set) \ + offset = (0x8000040ull | (a) << 8 | (b) << 22); \ + offset; }) \ + +#define NPC_AF_MCAMEX_BANKX_TAG_ACT(a, b) ({ \ + u64 offset; \ + \ + offset = (0x1900008ull | (a) << 8 | (b) << 4); \ + if (rvu->hw->npc_ext_set) \ + offset = (0x8000048ull | (a) << 8 | (b) << 22); \ + offset; }) \ + +#define NPC_AF_MCAMEX_BANKX_STAT_ACT(a, b) ({ \ + u64 offset; \ + \ + offset = (0x1880000ull | (a) << 8 | (b) << 4); \ + if (rvu->hw->npc_ext_set) \ + offset = (0x8000050ull | (a) << 8 | (b) << 22); \ + offset; }) \ + +#define NPC_AF_MATCH_STATX(a) ({ \ + u64 offset; \ + \ + offset = (0x1880008ull | (a) << 8); \ + if (rvu->hw->npc_ext_set) \ + offset = (0x8000078ull | (a) << 8); \ + offset; }) \ + +/* NDC */ +#define NDC_AF_CONST (0x00000) +#define NDC_AF_CLK_EN (0x00020) +#define NDC_AF_CTL (0x00030) +#define NDC_AF_BANK_CTL (0x00040) +#define NDC_AF_BANK_CTL_DONE (0x00048) +#define NDC_AF_INTR (0x00058) +#define NDC_AF_INTR_W1S (0x00060) +#define NDC_AF_INTR_ENA_W1S (0x00068) +#define NDC_AF_INTR_ENA_W1C (0x00070) +#define NDC_AF_ACTIVE_PC (0x00078) +#define NDC_AF_CAMS_RD_INTERVAL (0x00080) +#define NDC_AF_BP_TEST_ENABLE (0x001F8) +#define NDC_AF_BP_TEST(a) (0x00200 | (a) << 3) +#define NDC_AF_BLK_RST (0x002F0) +#define NDC_PRIV_AF_INT_CFG (0x002F8) +#define NDC_AF_HASHX(a) (0x00300 | (a) << 3) +#define NDC_AF_PORTX_RTX_RWX_REQ_PC(a, b, c) \ + (0x00C00 | (a) << 5 | (b) << 4 | (c) << 3) +#define NDC_AF_PORTX_RTX_RWX_OSTDN_PC(a, b, c) \ + (0x00D00 | (a) << 5 | (b) << 4 | (c) << 3) +#define NDC_AF_PORTX_RTX_RWX_LAT_PC(a, b, c) \ + (0x00E00 | (a) << 5 | (b) << 4 | (c) << 3) +#define NDC_AF_PORTX_RTX_CANT_ALLOC_PC(a, b) \ + (0x00F00 | (a) << 5 | (b) << 4) +#define NDC_AF_BANKX_HIT_PC(a) (0x01000 | (a) << 3) +#define NDC_AF_BANKX_MISS_PC(a) (0x01100 | (a) << 3) +#define NDC_AF_BANKX_LINEX_METADATA(a, b) \ + (0x10000 | (a) << 12 | (b) << 3) + +/* LBK */ +#define LBK_CONST (0x10ull) +#define LBK_LINK_CFG_P2X (0x400ull) +#define LBK_LINK_CFG_X2P (0x408ull) +#define LBK_CONST_CHANS GENMASK_ULL(47, 32) +#define LBK_CONST_DST GENMASK_ULL(31, 28) +#define LBK_CONST_SRC GENMASK_ULL(27, 24) +#define LBK_CONST_BUF_SIZE GENMASK_ULL(23, 0) +#define LBK_LINK_CFG_RANGE_MASK GENMASK_ULL(19, 16) +#define LBK_LINK_CFG_ID_MASK GENMASK_ULL(11, 6) +#define LBK_LINK_CFG_BASE_MASK GENMASK_ULL(5, 0) + +/* APR */ +#define APR_AF_LMT_CFG (0x000ull) +#define APR_AF_LMT_MAP_BASE (0x008ull) +#define APR_AF_LMT_CTL (0x010ull) +#define APR_LMT_MAP_ENT_DIS_SCH_CMP_SHIFT 23 +#define APR_LMT_MAP_ENT_SCH_ENA_SHIFT 22 +#define APR_LMT_MAP_ENT_DIS_LINE_PREF_SHIFT 21 + +#endif /* RVU_REG_H */ diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rvu_sdp.c b/drivers/net/ethernet/marvell/octeontx2/af/rvu_sdp.c new file mode 100644 index 000000000..ae50d5625 --- /dev/null +++ b/drivers/net/ethernet/marvell/octeontx2/af/rvu_sdp.c @@ -0,0 +1,111 @@ +// SPDX-License-Identifier: GPL-2.0 +/* Marvell RVU Admin Function driver + * + * Copyright (C) 2021 Marvell. + * + */ + +#include <linux/pci.h> +#include "rvu.h" + +/* SDP PF device id */ +#define PCI_DEVID_OTX2_SDP_PF 0xA0F6 + +/* Maximum SDP blocks in a chip */ +#define MAX_SDP 2 + +/* SDP PF number */ +static int sdp_pf_num[MAX_SDP] = {-1, -1}; + +bool is_sdp_pfvf(u16 pcifunc) +{ + u16 pf = rvu_get_pf(pcifunc); + u32 found = 0, i = 0; + + while (i < MAX_SDP) { + if (pf == sdp_pf_num[i]) + found = 1; + i++; + } + + if (!found) + return false; + + return true; +} + +bool is_sdp_pf(u16 pcifunc) +{ + return (is_sdp_pfvf(pcifunc) && + !(pcifunc & RVU_PFVF_FUNC_MASK)); +} + +bool is_sdp_vf(u16 pcifunc) +{ + return (is_sdp_pfvf(pcifunc) && + !!(pcifunc & RVU_PFVF_FUNC_MASK)); +} + +int rvu_sdp_init(struct rvu *rvu) +{ + struct pci_dev *pdev = NULL; + struct rvu_pfvf *pfvf; + u32 i = 0; + + while ((i < MAX_SDP) && (pdev = pci_get_device(PCI_VENDOR_ID_CAVIUM, + PCI_DEVID_OTX2_SDP_PF, + pdev)) != NULL) { + /* The RVU PF number is one less than bus number */ + sdp_pf_num[i] = pdev->bus->number - 1; + pfvf = &rvu->pf[sdp_pf_num[i]]; + + pfvf->sdp_info = devm_kzalloc(rvu->dev, + sizeof(struct sdp_node_info), + GFP_KERNEL); + if (!pfvf->sdp_info) { + pci_dev_put(pdev); + return -ENOMEM; + } + + dev_info(rvu->dev, "SDP PF number:%d\n", sdp_pf_num[i]); + + i++; + } + + pci_dev_put(pdev); + + return 0; +} + +int +rvu_mbox_handler_set_sdp_chan_info(struct rvu *rvu, + struct sdp_chan_info_msg *req, + struct msg_rsp *rsp) +{ + struct rvu_pfvf *pfvf = rvu_get_pfvf(rvu, req->hdr.pcifunc); + + memcpy(pfvf->sdp_info, &req->info, sizeof(struct sdp_node_info)); + dev_info(rvu->dev, "AF: SDP%d max_vfs %d num_pf_rings %d pf_srn %d\n", + req->info.node_id, req->info.max_vfs, req->info.num_pf_rings, + req->info.pf_srn); + return 0; +} + +int +rvu_mbox_handler_get_sdp_chan_info(struct rvu *rvu, struct msg_req *req, + struct sdp_get_chan_info_msg *rsp) +{ + struct rvu_hwinfo *hw = rvu->hw; + int blkaddr; + + if (!hw->cap.programmable_chans) { + rsp->chan_base = NIX_CHAN_SDP_CH_START; + rsp->num_chan = NIX_CHAN_SDP_NUM_CHANS; + } else { + blkaddr = rvu_get_blkaddr(rvu, BLKTYPE_NIX, 0); + rsp->chan_base = hw->sdp_chan_base; + rsp->num_chan = rvu_read64(rvu, blkaddr, NIX_AF_CONST1) & 0xFFFUL; + } + + return 0; +} diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rvu_struct.h b/drivers/net/ethernet/marvell/octeontx2/af/rvu_struct.h new file mode 100644 index 000000000..edc9367b1 --- /dev/null +++ b/drivers/net/ethernet/marvell/octeontx2/af/rvu_struct.h @@ -0,0 +1,823 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* Marvell RVU Admin Function driver + * + * Copyright (C) 2018 Marvell. + * + */ + +#ifndef RVU_STRUCT_H +#define RVU_STRUCT_H + +/* RVU Block revision IDs */ +#define RVU_BLK_RVUM_REVID 0x01 + +#define RVU_MULTI_BLK_VER 0x7ULL + +/* RVU Block Address Enumeration */ +enum rvu_block_addr_e { + BLKADDR_RVUM = 0x0ULL, + BLKADDR_LMT = 0x1ULL, + BLKADDR_MSIX = 0x2ULL, + BLKADDR_NPA = 0x3ULL, + BLKADDR_NIX0 = 0x4ULL, + BLKADDR_NIX1 = 0x5ULL, + BLKADDR_NPC = 0x6ULL, + BLKADDR_SSO = 0x7ULL, + BLKADDR_SSOW = 0x8ULL, + BLKADDR_TIM = 0x9ULL, + BLKADDR_CPT0 = 0xaULL, + BLKADDR_CPT1 = 0xbULL, + BLKADDR_NDC_NIX0_RX = 0xcULL, + BLKADDR_NDC_NIX0_TX = 0xdULL, + BLKADDR_NDC_NPA0 = 0xeULL, + BLKADDR_NDC_NIX1_RX = 0x10ULL, + BLKADDR_NDC_NIX1_TX = 0x11ULL, + BLKADDR_APR = 0x16ULL, + BLK_COUNT = 0x17ULL, +}; + +/* RVU Block Type Enumeration */ +enum rvu_block_type_e { + BLKTYPE_RVUM = 0x0, + BLKTYPE_MSIX = 0x1, + BLKTYPE_LMT = 0x2, + BLKTYPE_NIX = 0x3, + BLKTYPE_NPA = 0x4, + BLKTYPE_NPC = 0x5, + BLKTYPE_SSO = 0x6, + BLKTYPE_SSOW = 0x7, + BLKTYPE_TIM = 0x8, + BLKTYPE_CPT = 0x9, + BLKTYPE_NDC = 0xa, + BLKTYPE_MAX = 0xa, +}; + +/* RVU Admin function Interrupt Vector Enumeration */ +enum rvu_af_int_vec_e { + RVU_AF_INT_VEC_POISON = 0x0, + RVU_AF_INT_VEC_PFFLR = 0x1, + RVU_AF_INT_VEC_PFME = 0x2, + RVU_AF_INT_VEC_GEN = 0x3, + RVU_AF_INT_VEC_MBOX = 0x4, + RVU_AF_INT_VEC_CNT = 0x5, +}; + +/* CPT Admin function Interrupt Vector Enumeration */ +enum cpt_af_int_vec_e { + CPT_AF_INT_VEC_FLT0 = 0x0, + CPT_AF_INT_VEC_FLT1 = 0x1, + CPT_AF_INT_VEC_RVU = 0x2, + CPT_AF_INT_VEC_RAS = 0x3, + CPT_AF_INT_VEC_CNT = 0x4, +}; + +enum cpt_10k_af_int_vec_e { + CPT_10K_AF_INT_VEC_FLT0 = 0x0, + CPT_10K_AF_INT_VEC_FLT1 = 0x1, + CPT_10K_AF_INT_VEC_FLT2 = 0x2, + CPT_10K_AF_INT_VEC_RVU = 0x3, + CPT_10K_AF_INT_VEC_RAS = 0x4, + CPT_10K_AF_INT_VEC_CNT = 0x5, +}; + +/* NPA Admin function Interrupt Vector Enumeration */ +enum npa_af_int_vec_e { + NPA_AF_INT_VEC_RVU = 0x0, + NPA_AF_INT_VEC_GEN = 0x1, + NPA_AF_INT_VEC_AQ_DONE = 0x2, + NPA_AF_INT_VEC_AF_ERR = 0x3, + NPA_AF_INT_VEC_POISON = 0x4, + NPA_AF_INT_VEC_CNT = 0x5, +}; + +/* NIX Admin function Interrupt Vector Enumeration */ +enum nix_af_int_vec_e { + NIX_AF_INT_VEC_RVU = 0x0, + NIX_AF_INT_VEC_GEN = 0x1, + NIX_AF_INT_VEC_AQ_DONE = 0x2, + NIX_AF_INT_VEC_AF_ERR = 0x3, + NIX_AF_INT_VEC_POISON = 0x4, + NIX_AF_INT_VEC_CNT = 0x5, +}; + +/** + * RVU PF Interrupt Vector Enumeration + */ +enum rvu_pf_int_vec_e { + RVU_PF_INT_VEC_VFFLR0 = 0x0, + RVU_PF_INT_VEC_VFFLR1 = 0x1, + RVU_PF_INT_VEC_VFME0 = 0x2, + RVU_PF_INT_VEC_VFME1 = 0x3, + RVU_PF_INT_VEC_VFPF_MBOX0 = 0x4, + RVU_PF_INT_VEC_VFPF_MBOX1 = 0x5, + RVU_PF_INT_VEC_AFPF_MBOX = 0x6, + RVU_PF_INT_VEC_CNT = 0x7, +}; + +/* NPA admin queue completion enumeration */ +enum npa_aq_comp { + NPA_AQ_COMP_NOTDONE = 0x0, + NPA_AQ_COMP_GOOD = 0x1, + NPA_AQ_COMP_SWERR = 0x2, + NPA_AQ_COMP_CTX_POISON = 0x3, + NPA_AQ_COMP_CTX_FAULT = 0x4, + NPA_AQ_COMP_LOCKERR = 0x5, +}; + +/* NPA admin queue context types */ +enum npa_aq_ctype { + NPA_AQ_CTYPE_AURA = 0x0, + NPA_AQ_CTYPE_POOL = 0x1, +}; + +/* NPA admin queue instruction opcodes */ +enum npa_aq_instop { + NPA_AQ_INSTOP_NOP = 0x0, + NPA_AQ_INSTOP_INIT = 0x1, + NPA_AQ_INSTOP_WRITE = 0x2, + NPA_AQ_INSTOP_READ = 0x3, + NPA_AQ_INSTOP_LOCK = 0x4, + NPA_AQ_INSTOP_UNLOCK = 0x5, +}; + +/* ALLOC/FREE input queues Enumeration from coprocessors */ +enum npa_inpq { + NPA_INPQ_NIX0_RX = 0x0, + NPA_INPQ_NIX0_TX = 0x1, + NPA_INPQ_NIX1_RX = 0x2, + NPA_INPQ_NIX1_TX = 0x3, + NPA_INPQ_SSO = 0x4, + NPA_INPQ_TIM = 0x5, + NPA_INPQ_DPI = 0x6, + NPA_INPQ_AURA_OP = 0xe, + NPA_INPQ_INTERNAL_RSV = 0xf, +}; + +/* NPA admin queue instruction structure */ +struct npa_aq_inst_s { + u64 op : 4; /* W0 */ + u64 ctype : 4; + u64 lf : 9; + u64 reserved_17_23 : 7; + u64 cindex : 20; + u64 reserved_44_62 : 19; + u64 doneint : 1; + u64 res_addr; /* W1 */ +}; + +/* NPA admin queue result structure */ +struct npa_aq_res_s { + u64 op : 4; /* W0 */ + u64 ctype : 4; + u64 compcode : 8; + u64 doneint : 1; + u64 reserved_17_63 : 47; + u64 reserved_64_127; /* W1 */ +}; + +struct npa_aura_s { + u64 pool_addr; /* W0 */ + u64 ena : 1; /* W1 */ + u64 reserved_65 : 2; + u64 pool_caching : 1; + u64 pool_way_mask : 16; + u64 avg_con : 9; + u64 reserved_93 : 1; + u64 pool_drop_ena : 1; + u64 aura_drop_ena : 1; + u64 bp_ena : 2; + u64 reserved_98_103 : 6; + u64 aura_drop : 8; + u64 shift : 6; + u64 reserved_118_119 : 2; + u64 avg_level : 8; + u64 count : 36; /* W2 */ + u64 reserved_164_167 : 4; + u64 nix0_bpid : 9; + u64 reserved_177_179 : 3; + u64 nix1_bpid : 9; + u64 reserved_189_191 : 3; + u64 limit : 36; /* W3 */ + u64 reserved_228_231 : 4; + u64 bp : 8; + u64 reserved_241_243 : 3; + u64 fc_be : 1; + u64 fc_ena : 1; + u64 fc_up_crossing : 1; + u64 fc_stype : 2; + u64 fc_hyst_bits : 4; + u64 reserved_252_255 : 4; + u64 fc_addr; /* W4 */ + u64 pool_drop : 8; /* W5 */ + u64 update_time : 16; + u64 err_int : 8; + u64 err_int_ena : 8; + u64 thresh_int : 1; + u64 thresh_int_ena : 1; + u64 thresh_up : 1; + u64 reserved_363 : 1; + u64 thresh_qint_idx : 7; + u64 reserved_371 : 1; + u64 err_qint_idx : 7; + u64 reserved_379_383 : 5; + u64 thresh : 36; /* W6*/ + u64 rsvd_423_420 : 4; + u64 fc_msh_dst : 11; + u64 reserved_435_447 : 13; + u64 reserved_448_511; /* W7 */ +}; + +struct npa_pool_s { + u64 stack_base; /* W0 */ + u64 ena : 1; + u64 nat_align : 1; + u64 reserved_66_67 : 2; + u64 stack_caching : 1; + u64 reserved_70_71 : 3; + u64 stack_way_mask : 16; + u64 buf_offset : 12; + u64 reserved_100_103 : 4; + u64 buf_size : 11; + u64 reserved_115_127 : 13; + u64 stack_max_pages : 32; + u64 stack_pages : 32; + u64 op_pc : 48; + u64 reserved_240_255 : 16; + u64 stack_offset : 4; + u64 reserved_260_263 : 4; + u64 shift : 6; + u64 reserved_270_271 : 2; + u64 avg_level : 8; + u64 avg_con : 9; + u64 fc_ena : 1; + u64 fc_stype : 2; + u64 fc_hyst_bits : 4; + u64 fc_up_crossing : 1; + u64 fc_be : 1; + u64 reserved_298_299 : 2; + u64 update_time : 16; + u64 reserved_316_319 : 4; + u64 fc_addr; /* W5 */ + u64 ptr_start; /* W6 */ + u64 ptr_end; /* W7 */ + u64 reserved_512_535 : 24; + u64 err_int : 8; + u64 err_int_ena : 8; + u64 thresh_int : 1; + u64 thresh_int_ena : 1; + u64 thresh_up : 1; + u64 reserved_555 : 1; + u64 thresh_qint_idx : 7; + u64 reserved_563 : 1; + u64 err_qint_idx : 7; + u64 reserved_571_575 : 5; + u64 thresh : 36; + u64 rsvd_615_612 : 4; + u64 fc_msh_dst : 11; + u64 reserved_627_639 : 13; + u64 reserved_640_703; /* W10 */ + u64 reserved_704_767; /* W11 */ + u64 reserved_768_831; /* W12 */ + u64 reserved_832_895; /* W13 */ + u64 reserved_896_959; /* W14 */ + u64 reserved_960_1023; /* W15 */ +}; + +/* NIX admin queue completion status */ +enum nix_aq_comp { + NIX_AQ_COMP_NOTDONE = 0x0, + NIX_AQ_COMP_GOOD = 0x1, + NIX_AQ_COMP_SWERR = 0x2, + NIX_AQ_COMP_CTX_POISON = 0x3, + NIX_AQ_COMP_CTX_FAULT = 0x4, + NIX_AQ_COMP_LOCKERR = 0x5, + NIX_AQ_COMP_SQB_ALLOC_FAIL = 0x6, +}; + +/* NIX admin queue context types */ +enum nix_aq_ctype { + NIX_AQ_CTYPE_RQ = 0x0, + NIX_AQ_CTYPE_SQ = 0x1, + NIX_AQ_CTYPE_CQ = 0x2, + NIX_AQ_CTYPE_MCE = 0x3, + NIX_AQ_CTYPE_RSS = 0x4, + NIX_AQ_CTYPE_DYNO = 0x5, + NIX_AQ_CTYPE_BANDPROF = 0x6, +}; + +/* NIX admin queue instruction opcodes */ +enum nix_aq_instop { + NIX_AQ_INSTOP_NOP = 0x0, + NIX_AQ_INSTOP_INIT = 0x1, + NIX_AQ_INSTOP_WRITE = 0x2, + NIX_AQ_INSTOP_READ = 0x3, + NIX_AQ_INSTOP_LOCK = 0x4, + NIX_AQ_INSTOP_UNLOCK = 0x5, +}; + +/* NIX admin queue instruction structure */ +struct nix_aq_inst_s { + u64 op : 4; + u64 ctype : 4; + u64 lf : 9; + u64 reserved_17_23 : 7; + u64 cindex : 20; + u64 reserved_44_62 : 19; + u64 doneint : 1; + u64 res_addr; /* W1 */ +}; + +/* NIX admin queue result structure */ +struct nix_aq_res_s { + u64 op : 4; + u64 ctype : 4; + u64 compcode : 8; + u64 doneint : 1; + u64 reserved_17_63 : 47; + u64 reserved_64_127; /* W1 */ +}; + +/* NIX Completion queue context structure */ +struct nix_cq_ctx_s { + u64 base; + u64 rsvd_64_67 : 4; + u64 bp_ena : 1; + u64 rsvd_69_71 : 3; + u64 bpid : 9; + u64 rsvd_81_83 : 3; + u64 qint_idx : 7; + u64 cq_err : 1; + u64 cint_idx : 7; + u64 avg_con : 9; + u64 wrptr : 20; + u64 tail : 20; + u64 head : 20; + u64 avg_level : 8; + u64 update_time : 16; + u64 bp : 8; + u64 drop : 8; + u64 drop_ena : 1; + u64 ena : 1; + u64 rsvd_210_211 : 2; + u64 substream : 20; + u64 caching : 1; + u64 rsvd_233_235 : 3; + u64 qsize : 4; + u64 cq_err_int : 8; + u64 cq_err_int_ena : 8; +}; + +/* CN10K NIX Receive queue context structure */ +struct nix_cn10k_rq_ctx_s { + u64 ena : 1; + u64 sso_ena : 1; + u64 ipsech_ena : 1; + u64 ena_wqwd : 1; + u64 cq : 20; + u64 rsvd_36_24 : 13; + u64 lenerr_dis : 1; + u64 csum_il4_dis : 1; + u64 csum_ol4_dis : 1; + u64 len_il4_dis : 1; + u64 len_il3_dis : 1; + u64 len_ol4_dis : 1; + u64 len_ol3_dis : 1; + u64 wqe_aura : 20; + u64 spb_aura : 20; + u64 lpb_aura : 20; + u64 sso_grp : 10; + u64 sso_tt : 2; + u64 pb_caching : 2; + u64 wqe_caching : 1; + u64 xqe_drop_ena : 1; + u64 spb_drop_ena : 1; + u64 lpb_drop_ena : 1; + u64 pb_stashing : 1; + u64 ipsecd_drop_ena : 1; + u64 chi_ena : 1; + u64 rsvd_127_125 : 3; + u64 band_prof_id : 10; /* W2 */ + u64 rsvd_138 : 1; + u64 policer_ena : 1; + u64 spb_sizem1 : 6; + u64 wqe_skip : 2; + u64 rsvd_150_148 : 3; + u64 spb_ena : 1; + u64 lpb_sizem1 : 12; + u64 first_skip : 7; + u64 rsvd_171 : 1; + u64 later_skip : 6; + u64 xqe_imm_size : 6; + u64 rsvd_189_184 : 6; + u64 xqe_imm_copy : 1; + u64 xqe_hdr_split : 1; + u64 xqe_drop : 8; /* W3 */ + u64 xqe_pass : 8; + u64 wqe_pool_drop : 8; + u64 wqe_pool_pass : 8; + u64 spb_aura_drop : 8; + u64 spb_aura_pass : 8; + u64 spb_pool_drop : 8; + u64 spb_pool_pass : 8; + u64 lpb_aura_drop : 8; /* W4 */ + u64 lpb_aura_pass : 8; + u64 lpb_pool_drop : 8; + u64 lpb_pool_pass : 8; + u64 rsvd_291_288 : 4; + u64 rq_int : 8; + u64 rq_int_ena : 8; + u64 qint_idx : 7; + u64 rsvd_319_315 : 5; + u64 ltag : 24; /* W5 */ + u64 good_utag : 8; + u64 bad_utag : 8; + u64 flow_tagw : 6; + u64 ipsec_vwqe : 1; + u64 vwqe_ena : 1; + u64 vwqe_wait : 8; + u64 max_vsize_exp : 4; + u64 vwqe_skip : 2; + u64 rsvd_383_382 : 2; + u64 octs : 48; /* W6 */ + u64 rsvd_447_432 : 16; + u64 pkts : 48; /* W7 */ + u64 rsvd_511_496 : 16; + u64 drop_octs : 48; /* W8 */ + u64 rsvd_575_560 : 16; + u64 drop_pkts : 48; /* W9 */ + u64 rsvd_639_624 : 16; + u64 re_pkts : 48; /* W10 */ + u64 rsvd_703_688 : 16; + u64 rsvd_767_704; /* W11 */ + u64 rsvd_831_768; /* W12 */ + u64 rsvd_895_832; /* W13 */ + u64 rsvd_959_896; /* W14 */ + u64 rsvd_1023_960; /* W15 */ +}; + +/* CN10K NIX Send queue context structure */ +struct nix_cn10k_sq_ctx_s { + u64 ena : 1; + u64 qint_idx : 6; + u64 substream : 20; + u64 sdp_mcast : 1; + u64 cq : 20; + u64 sqe_way_mask : 16; + u64 smq : 10; /* W1 */ + u64 cq_ena : 1; + u64 xoff : 1; + u64 sso_ena : 1; + u64 smq_rr_weight : 14; + u64 default_chan : 12; + u64 sqb_count : 16; + u64 rsvd_120_119 : 2; + u64 smq_rr_count_lb : 7; + u64 smq_rr_count_ub : 25; /* W2 */ + u64 sqb_aura : 20; + u64 sq_int : 8; + u64 sq_int_ena : 8; + u64 sqe_stype : 2; + u64 rsvd_191 : 1; + u64 max_sqe_size : 2; /* W3 */ + u64 cq_limit : 8; + u64 lmt_dis : 1; + u64 mnq_dis : 1; + u64 smq_next_sq : 20; + u64 smq_lso_segnum : 8; + u64 tail_offset : 6; + u64 smenq_offset : 6; + u64 head_offset : 6; + u64 smenq_next_sqb_vld : 1; + u64 smq_pend : 1; + u64 smq_next_sq_vld : 1; + u64 rsvd_255_253 : 3; + u64 next_sqb : 64; /* W4 */ + u64 tail_sqb : 64; /* W5 */ + u64 smenq_sqb : 64; /* W6 */ + u64 smenq_next_sqb : 64; /* W7 */ + u64 head_sqb : 64; /* W8 */ + u64 rsvd_583_576 : 8; /* W9 */ + u64 vfi_lso_total : 18; + u64 vfi_lso_sizem1 : 3; + u64 vfi_lso_sb : 8; + u64 vfi_lso_mps : 14; + u64 vfi_lso_vlan0_ins_ena : 1; + u64 vfi_lso_vlan1_ins_ena : 1; + u64 vfi_lso_vld : 1; + u64 rsvd_639_630 : 10; + u64 scm_lso_rem : 18; /* W10 */ + u64 rsvd_703_658 : 46; + u64 octs : 48; /* W11 */ + u64 rsvd_767_752 : 16; + u64 pkts : 48; /* W12 */ + u64 rsvd_831_816 : 16; + u64 rsvd_895_832 : 64; /* W13 */ + u64 dropped_octs : 48; + u64 rsvd_959_944 : 16; + u64 dropped_pkts : 48; + u64 rsvd_1023_1008 : 16; +}; + +/* NIX Receive queue context structure */ +struct nix_rq_ctx_s { + u64 ena : 1; + u64 sso_ena : 1; + u64 ipsech_ena : 1; + u64 ena_wqwd : 1; + u64 cq : 20; + u64 substream : 20; + u64 wqe_aura : 20; + u64 spb_aura : 20; + u64 lpb_aura : 20; + u64 sso_grp : 10; + u64 sso_tt : 2; + u64 pb_caching : 2; + u64 wqe_caching : 1; + u64 xqe_drop_ena : 1; + u64 spb_drop_ena : 1; + u64 lpb_drop_ena : 1; + u64 rsvd_127_122 : 6; + u64 rsvd_139_128 : 12; /* W2 */ + u64 spb_sizem1 : 6; + u64 wqe_skip : 2; + u64 rsvd_150_148 : 3; + u64 spb_ena : 1; + u64 lpb_sizem1 : 12; + u64 first_skip : 7; + u64 rsvd_171 : 1; + u64 later_skip : 6; + u64 xqe_imm_size : 6; + u64 rsvd_189_184 : 6; + u64 xqe_imm_copy : 1; + u64 xqe_hdr_split : 1; + u64 xqe_drop : 8; /* W3*/ + u64 xqe_pass : 8; + u64 wqe_pool_drop : 8; + u64 wqe_pool_pass : 8; + u64 spb_aura_drop : 8; + u64 spb_aura_pass : 8; + u64 spb_pool_drop : 8; + u64 spb_pool_pass : 8; + u64 lpb_aura_drop : 8; /* W4 */ + u64 lpb_aura_pass : 8; + u64 lpb_pool_drop : 8; + u64 lpb_pool_pass : 8; + u64 rsvd_291_288 : 4; + u64 rq_int : 8; + u64 rq_int_ena : 8; + u64 qint_idx : 7; + u64 rsvd_319_315 : 5; + u64 ltag : 24; /* W5 */ + u64 good_utag : 8; + u64 bad_utag : 8; + u64 flow_tagw : 6; + u64 rsvd_383_366 : 18; + u64 octs : 48; /* W6 */ + u64 rsvd_447_432 : 16; + u64 pkts : 48; /* W7 */ + u64 rsvd_511_496 : 16; + u64 drop_octs : 48; /* W8 */ + u64 rsvd_575_560 : 16; + u64 drop_pkts : 48; /* W9 */ + u64 rsvd_639_624 : 16; + u64 re_pkts : 48; /* W10 */ + u64 rsvd_703_688 : 16; + u64 rsvd_767_704; /* W11 */ + u64 rsvd_831_768; /* W12 */ + u64 rsvd_895_832; /* W13 */ + u64 rsvd_959_896; /* W14 */ + u64 rsvd_1023_960; /* W15 */ +}; + +/* NIX sqe sizes */ +enum nix_maxsqesz { + NIX_MAXSQESZ_W16 = 0x0, + NIX_MAXSQESZ_W8 = 0x1, +}; + +/* NIX SQB caching type */ +enum nix_stype { + NIX_STYPE_STF = 0x0, + NIX_STYPE_STT = 0x1, + NIX_STYPE_STP = 0x2, +}; + +/* NIX Send queue context structure */ +struct nix_sq_ctx_s { + u64 ena : 1; + u64 qint_idx : 6; + u64 substream : 20; + u64 sdp_mcast : 1; + u64 cq : 20; + u64 sqe_way_mask : 16; + u64 smq : 9; + u64 cq_ena : 1; + u64 xoff : 1; + u64 sso_ena : 1; + u64 smq_rr_quantum : 24; + u64 default_chan : 12; + u64 sqb_count : 16; + u64 smq_rr_count : 25; + u64 sqb_aura : 20; + u64 sq_int : 8; + u64 sq_int_ena : 8; + u64 sqe_stype : 2; + u64 rsvd_191 : 1; + u64 max_sqe_size : 2; + u64 cq_limit : 8; + u64 lmt_dis : 1; + u64 mnq_dis : 1; + u64 smq_next_sq : 20; + u64 smq_lso_segnum : 8; + u64 tail_offset : 6; + u64 smenq_offset : 6; + u64 head_offset : 6; + u64 smenq_next_sqb_vld : 1; + u64 smq_pend : 1; + u64 smq_next_sq_vld : 1; + u64 rsvd_255_253 : 3; + u64 next_sqb : 64;/* W4 */ + u64 tail_sqb : 64;/* W5 */ + u64 smenq_sqb : 64;/* W6 */ + u64 smenq_next_sqb : 64;/* W7 */ + u64 head_sqb : 64;/* W8 */ + u64 rsvd_583_576 : 8; + u64 vfi_lso_total : 18; + u64 vfi_lso_sizem1 : 3; + u64 vfi_lso_sb : 8; + u64 vfi_lso_mps : 14; + u64 vfi_lso_vlan0_ins_ena : 1; + u64 vfi_lso_vlan1_ins_ena : 1; + u64 vfi_lso_vld : 1; + u64 rsvd_639_630 : 10; + u64 scm_lso_rem : 18; + u64 rsvd_703_658 : 46; + u64 octs : 48; + u64 rsvd_767_752 : 16; + u64 pkts : 48; + u64 rsvd_831_816 : 16; + u64 rsvd_895_832 : 64;/* W13 */ + u64 dropped_octs : 48; + u64 rsvd_959_944 : 16; + u64 dropped_pkts : 48; + u64 rsvd_1023_1008 : 16; +}; + +/* NIX Receive side scaling entry structure*/ +struct nix_rsse_s { + uint32_t rq : 20; + uint32_t reserved_20_31 : 12; + +}; + +/* NIX receive multicast/mirror entry structure */ +struct nix_rx_mce_s { + uint64_t op : 2; + uint64_t rsvd_2 : 1; + uint64_t eol : 1; + uint64_t index : 20; + uint64_t rsvd_31_24 : 8; + uint64_t pf_func : 16; + uint64_t next : 16; +}; + +enum nix_band_prof_layers { + BAND_PROF_LEAF_LAYER = 0, + BAND_PROF_INVAL_LAYER = 1, + BAND_PROF_MID_LAYER = 2, + BAND_PROF_TOP_LAYER = 3, + BAND_PROF_NUM_LAYERS = 4, +}; + +enum NIX_RX_BAND_PROF_ACTIONRESULT_E { + NIX_RX_BAND_PROF_ACTIONRESULT_PASS = 0x0, + NIX_RX_BAND_PROF_ACTIONRESULT_DROP = 0x1, + NIX_RX_BAND_PROF_ACTIONRESULT_RED = 0x2, +}; + +enum nix_band_prof_pc_mode { + NIX_RX_PC_MODE_VLAN = 0, + NIX_RX_PC_MODE_DSCP = 1, + NIX_RX_PC_MODE_GEN = 2, + NIX_RX_PC_MODE_RSVD = 3, +}; + +/* NIX ingress policer bandwidth profile structure */ +struct nix_bandprof_s { + uint64_t pc_mode : 2; /* W0 */ + uint64_t icolor : 2; + uint64_t tnl_ena : 1; + uint64_t reserved_5_7 : 3; + uint64_t peir_exponent : 5; + uint64_t reserved_13_15 : 3; + uint64_t pebs_exponent : 5; + uint64_t reserved_21_23 : 3; + uint64_t cir_exponent : 5; + uint64_t reserved_29_31 : 3; + uint64_t cbs_exponent : 5; + uint64_t reserved_37_39 : 3; + uint64_t peir_mantissa : 8; + uint64_t pebs_mantissa : 8; + uint64_t cir_mantissa : 8; + uint64_t cbs_mantissa : 8; /* W1 */ + uint64_t lmode : 1; + uint64_t l_sellect : 3; + uint64_t rdiv : 4; + uint64_t adjust_exponent : 5; + uint64_t reserved_85_86 : 2; + uint64_t adjust_mantissa : 9; + uint64_t gc_action : 2; + uint64_t yc_action : 2; + uint64_t rc_action : 2; + uint64_t meter_algo : 2; + uint64_t band_prof_id : 7; + uint64_t reserved_111_118 : 8; + uint64_t hl_en : 1; + uint64_t reserved_120_127 : 8; + uint64_t ts : 48; /* W2 */ + uint64_t reserved_176_191 : 16; + uint64_t pe_accum : 32; /* W3 */ + uint64_t c_accum : 32; + uint64_t green_pkt_pass : 48; /* W4 */ + uint64_t reserved_304_319 : 16; + uint64_t yellow_pkt_pass : 48; /* W5 */ + uint64_t reserved_368_383 : 16; + uint64_t red_pkt_pass : 48; /* W6 */ + uint64_t reserved_432_447 : 16; + uint64_t green_octs_pass : 48; /* W7 */ + uint64_t reserved_496_511 : 16; + uint64_t yellow_octs_pass : 48; /* W8 */ + uint64_t reserved_560_575 : 16; + uint64_t red_octs_pass : 48; /* W9 */ + uint64_t reserved_624_639 : 16; + uint64_t green_pkt_drop : 48; /* W10 */ + uint64_t reserved_688_703 : 16; + uint64_t yellow_pkt_drop : 48; /* W11 */ + uint64_t reserved_752_767 : 16; + uint64_t red_pkt_drop : 48; /* W12 */ + uint64_t reserved_816_831 : 16; + uint64_t green_octs_drop : 48; /* W13 */ + uint64_t reserved_880_895 : 16; + uint64_t yellow_octs_drop : 48; /* W14 */ + uint64_t reserved_944_959 : 16; + uint64_t red_octs_drop : 48; /* W15 */ + uint64_t reserved_1008_1023 : 16; +}; + +enum nix_lsoalg { + NIX_LSOALG_NOP, + NIX_LSOALG_ADD_SEGNUM, + NIX_LSOALG_ADD_PAYLEN, + NIX_LSOALG_ADD_OFFSET, + NIX_LSOALG_TCP_FLAGS, +}; + +enum nix_txlayer { + NIX_TXLAYER_OL3, + NIX_TXLAYER_OL4, + NIX_TXLAYER_IL3, + NIX_TXLAYER_IL4, +}; + +struct nix_lso_format { + u64 offset : 8; + u64 layer : 2; + u64 rsvd_10_11 : 2; + u64 sizem1 : 2; + u64 rsvd_14_15 : 2; + u64 alg : 3; + u64 rsvd_19_63 : 45; +}; + +struct nix_rx_flowkey_alg { + u64 key_offset :6; + u64 ln_mask :1; + u64 fn_mask :1; + u64 hdr_offset :8; + u64 bytesm1 :5; + u64 lid :3; + u64 reserved_24_24 :1; + u64 ena :1; + u64 sel_chan :1; + u64 ltype_mask :4; + u64 ltype_match :4; + u64 reserved_35_63 :29; +}; + +/* NIX VTAG size */ +enum nix_vtag_size { + VTAGSIZE_T4 = 0x0, + VTAGSIZE_T8 = 0x1, +}; + +enum nix_tx_vtag_op { + NOP = 0x0, + VTAG_INSERT = 0x1, + VTAG_REPLACE = 0x2, +}; + +/* NIX RX VTAG actions */ +#define VTAG_STRIP BIT_ULL(4) +#define VTAG_CAPTURE BIT_ULL(5) + +#endif /* RVU_STRUCT_H */ diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rvu_switch.c b/drivers/net/ethernet/marvell/octeontx2/af/rvu_switch.c new file mode 100644 index 000000000..329b5a029 --- /dev/null +++ b/drivers/net/ethernet/marvell/octeontx2/af/rvu_switch.c @@ -0,0 +1,262 @@ +// SPDX-License-Identifier: GPL-2.0 +/* Marvell RVU Admin Function driver + * + * Copyright (C) 2021 Marvell. + * + */ + +#include <linux/bitfield.h> +#include "rvu.h" + +static int rvu_switch_install_rx_rule(struct rvu *rvu, u16 pcifunc, + u16 chan_mask) +{ + struct npc_install_flow_req req = { 0 }; + struct npc_install_flow_rsp rsp = { 0 }; + struct rvu_pfvf *pfvf; + + pfvf = rvu_get_pfvf(rvu, pcifunc); + /* If the pcifunc is not initialized then nothing to do. + * This same function will be called again via rvu_switch_update_rules + * after pcifunc is initialized. + */ + if (!test_bit(NIXLF_INITIALIZED, &pfvf->flags)) + return 0; + + ether_addr_copy(req.packet.dmac, pfvf->mac_addr); + eth_broadcast_addr((u8 *)&req.mask.dmac); + req.hdr.pcifunc = 0; /* AF is requester */ + req.vf = pcifunc; + req.features = BIT_ULL(NPC_DMAC); + req.channel = pfvf->rx_chan_base; + req.chan_mask = chan_mask; + req.intf = pfvf->nix_rx_intf; + req.op = NIX_RX_ACTION_DEFAULT; + req.default_rule = 1; + + return rvu_mbox_handler_npc_install_flow(rvu, &req, &rsp); +} + +static int rvu_switch_install_tx_rule(struct rvu *rvu, u16 pcifunc, u16 entry) +{ + struct npc_install_flow_req req = { 0 }; + struct npc_install_flow_rsp rsp = { 0 }; + struct rvu_pfvf *pfvf; + u8 lbkid; + + pfvf = rvu_get_pfvf(rvu, pcifunc); + /* If the pcifunc is not initialized then nothing to do. + * This same function will be called again via rvu_switch_update_rules + * after pcifunc is initialized. + */ + if (!test_bit(NIXLF_INITIALIZED, &pfvf->flags)) + return 0; + + lbkid = pfvf->nix_blkaddr == BLKADDR_NIX0 ? 0 : 1; + ether_addr_copy(req.packet.dmac, pfvf->mac_addr); + eth_broadcast_addr((u8 *)&req.mask.dmac); + req.hdr.pcifunc = 0; /* AF is requester */ + req.vf = pcifunc; + req.entry = entry; + req.features = BIT_ULL(NPC_DMAC); + req.intf = pfvf->nix_tx_intf; + req.op = NIX_TX_ACTIONOP_UCAST_CHAN; + req.index = (lbkid << 8) | RVU_SWITCH_LBK_CHAN; + req.set_cntr = 1; + + return rvu_mbox_handler_npc_install_flow(rvu, &req, &rsp); +} + +static int rvu_switch_install_rules(struct rvu *rvu) +{ + struct rvu_switch *rswitch = &rvu->rswitch; + u16 start = rswitch->start_entry; + struct rvu_hwinfo *hw = rvu->hw; + u16 pcifunc, entry = 0; + int pf, vf, numvfs; + int err; + + for (pf = 1; pf < hw->total_pfs; pf++) { + if (!is_pf_cgxmapped(rvu, pf)) + continue; + + pcifunc = pf << 10; + /* rvu_get_nix_blkaddr sets up the corresponding NIX block + * address and NIX RX and TX interfaces for a pcifunc. + * Generally it is called during attach call of a pcifunc but it + * is called here since we are pre-installing rules before + * nixlfs are attached + */ + rvu_get_nix_blkaddr(rvu, pcifunc); + + /* MCAM RX rule for a PF/VF already exists as default unicast + * rules installed by AF. Hence change the channel in those + * rules to ignore channel so that packets with the required + * DMAC received from LBK(by other PF/VFs in system) or from + * external world (from wire) are accepted. + */ + err = rvu_switch_install_rx_rule(rvu, pcifunc, 0x0); + if (err) { + dev_err(rvu->dev, "RX rule for PF%d failed(%d)\n", + pf, err); + return err; + } + + err = rvu_switch_install_tx_rule(rvu, pcifunc, start + entry); + if (err) { + dev_err(rvu->dev, "TX rule for PF%d failed(%d)\n", + pf, err); + return err; + } + + rswitch->entry2pcifunc[entry++] = pcifunc; + + rvu_get_pf_numvfs(rvu, pf, &numvfs, NULL); + for (vf = 0; vf < numvfs; vf++) { + pcifunc = pf << 10 | ((vf + 1) & 0x3FF); + rvu_get_nix_blkaddr(rvu, pcifunc); + + err = rvu_switch_install_rx_rule(rvu, pcifunc, 0x0); + if (err) { + dev_err(rvu->dev, + "RX rule for PF%dVF%d failed(%d)\n", + pf, vf, err); + return err; + } + + err = rvu_switch_install_tx_rule(rvu, pcifunc, + start + entry); + if (err) { + dev_err(rvu->dev, + "TX rule for PF%dVF%d failed(%d)\n", + pf, vf, err); + return err; + } + + rswitch->entry2pcifunc[entry++] = pcifunc; + } + } + + return 0; +} + +void rvu_switch_enable(struct rvu *rvu) +{ + struct npc_mcam_alloc_entry_req alloc_req = { 0 }; + struct npc_mcam_alloc_entry_rsp alloc_rsp = { 0 }; + struct npc_delete_flow_req uninstall_req = { 0 }; + struct npc_delete_flow_rsp uninstall_rsp = { 0 }; + struct npc_mcam_free_entry_req free_req = { 0 }; + struct rvu_switch *rswitch = &rvu->rswitch; + struct msg_rsp rsp; + int ret; + + alloc_req.contig = true; + alloc_req.count = rvu->cgx_mapped_pfs + rvu->cgx_mapped_vfs; + ret = rvu_mbox_handler_npc_mcam_alloc_entry(rvu, &alloc_req, + &alloc_rsp); + if (ret) { + dev_err(rvu->dev, + "Unable to allocate MCAM entries\n"); + goto exit; + } + + if (alloc_rsp.count != alloc_req.count) { + dev_err(rvu->dev, + "Unable to allocate %d MCAM entries, got %d\n", + alloc_req.count, alloc_rsp.count); + goto free_entries; + } + + rswitch->entry2pcifunc = kcalloc(alloc_req.count, sizeof(u16), + GFP_KERNEL); + if (!rswitch->entry2pcifunc) + goto free_entries; + + rswitch->used_entries = alloc_rsp.count; + rswitch->start_entry = alloc_rsp.entry; + + ret = rvu_switch_install_rules(rvu); + if (ret) + goto uninstall_rules; + + return; + +uninstall_rules: + uninstall_req.start = rswitch->start_entry; + uninstall_req.end = rswitch->start_entry + rswitch->used_entries - 1; + rvu_mbox_handler_npc_delete_flow(rvu, &uninstall_req, &uninstall_rsp); + kfree(rswitch->entry2pcifunc); +free_entries: + free_req.all = 1; + rvu_mbox_handler_npc_mcam_free_entry(rvu, &free_req, &rsp); +exit: + return; +} + +void rvu_switch_disable(struct rvu *rvu) +{ + struct npc_delete_flow_req uninstall_req = { 0 }; + struct npc_delete_flow_rsp uninstall_rsp = { 0 }; + struct npc_mcam_free_entry_req free_req = { 0 }; + struct rvu_switch *rswitch = &rvu->rswitch; + struct rvu_hwinfo *hw = rvu->hw; + int pf, vf, numvfs; + struct msg_rsp rsp; + u16 pcifunc; + int err; + + if (!rswitch->used_entries) + return; + + for (pf = 1; pf < hw->total_pfs; pf++) { + if (!is_pf_cgxmapped(rvu, pf)) + continue; + + pcifunc = pf << 10; + err = rvu_switch_install_rx_rule(rvu, pcifunc, 0xFFF); + if (err) + dev_err(rvu->dev, + "Reverting RX rule for PF%d failed(%d)\n", + pf, err); + + rvu_get_pf_numvfs(rvu, pf, &numvfs, NULL); + for (vf = 0; vf < numvfs; vf++) { + pcifunc = pf << 10 | ((vf + 1) & 0x3FF); + err = rvu_switch_install_rx_rule(rvu, pcifunc, 0xFFF); + if (err) + dev_err(rvu->dev, + "Reverting RX rule for PF%dVF%d failed(%d)\n", + pf, vf, err); + } + } + + uninstall_req.start = rswitch->start_entry; + uninstall_req.end = rswitch->start_entry + rswitch->used_entries - 1; + free_req.all = 1; + rvu_mbox_handler_npc_delete_flow(rvu, &uninstall_req, &uninstall_rsp); + rvu_mbox_handler_npc_mcam_free_entry(rvu, &free_req, &rsp); + rswitch->used_entries = 0; + kfree(rswitch->entry2pcifunc); +} + +void rvu_switch_update_rules(struct rvu *rvu, u16 pcifunc) +{ + struct rvu_switch *rswitch = &rvu->rswitch; + u32 max = rswitch->used_entries; + u16 entry; + + if (!rswitch->used_entries) + return; + + for (entry = 0; entry < max; entry++) { + if (rswitch->entry2pcifunc[entry] == pcifunc) + break; + } + + if (entry >= max) + return; + + rvu_switch_install_tx_rule(rvu, pcifunc, rswitch->start_entry + entry); + rvu_switch_install_rx_rule(rvu, pcifunc, 0x0); +} diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rvu_trace.c b/drivers/net/ethernet/marvell/octeontx2/af/rvu_trace.c new file mode 100644 index 000000000..775fd4c35 --- /dev/null +++ b/drivers/net/ethernet/marvell/octeontx2/af/rvu_trace.c @@ -0,0 +1,13 @@ +// SPDX-License-Identifier: GPL-2.0 +/* Marvell RVU Admin Function driver + * + * Copyright (C) 2020 Marvell. + * + */ + +#define CREATE_TRACE_POINTS +#include "rvu_trace.h" + +EXPORT_TRACEPOINT_SYMBOL(otx2_msg_alloc); +EXPORT_TRACEPOINT_SYMBOL(otx2_msg_interrupt); +EXPORT_TRACEPOINT_SYMBOL(otx2_msg_process); diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rvu_trace.h b/drivers/net/ethernet/marvell/octeontx2/af/rvu_trace.h new file mode 100644 index 000000000..28984d0e8 --- /dev/null +++ b/drivers/net/ethernet/marvell/octeontx2/af/rvu_trace.h @@ -0,0 +1,106 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* Marvell RVU Admin Function driver + * + * Copyright (C) 2020 Marvell. + * + */ + +#undef TRACE_SYSTEM +#define TRACE_SYSTEM rvu + +#if !defined(__RVU_TRACE_H) || defined(TRACE_HEADER_MULTI_READ) +#define __RVU_TRACE_H + +#include <linux/types.h> +#include <linux/tracepoint.h> +#include <linux/pci.h> + +#include "mbox.h" + +TRACE_EVENT(otx2_msg_alloc, + TP_PROTO(const struct pci_dev *pdev, u16 id, u64 size), + TP_ARGS(pdev, id, size), + TP_STRUCT__entry(__string(dev, pci_name(pdev)) + __field(u16, id) + __field(u64, size) + ), + TP_fast_assign(__assign_str(dev, pci_name(pdev)); + __entry->id = id; + __entry->size = size; + ), + TP_printk("[%s] msg:(%s) size:%lld\n", __get_str(dev), + otx2_mbox_id2name(__entry->id), __entry->size) +); + +TRACE_EVENT(otx2_msg_send, + TP_PROTO(const struct pci_dev *pdev, u16 num_msgs, u64 msg_size), + TP_ARGS(pdev, num_msgs, msg_size), + TP_STRUCT__entry(__string(dev, pci_name(pdev)) + __field(u16, num_msgs) + __field(u64, msg_size) + ), + TP_fast_assign(__assign_str(dev, pci_name(pdev)); + __entry->num_msgs = num_msgs; + __entry->msg_size = msg_size; + ), + TP_printk("[%s] sent %d msg(s) of size:%lld\n", __get_str(dev), + __entry->num_msgs, __entry->msg_size) +); + +TRACE_EVENT(otx2_msg_check, + TP_PROTO(const struct pci_dev *pdev, u16 reqid, u16 rspid, int rc), + TP_ARGS(pdev, reqid, rspid, rc), + TP_STRUCT__entry(__string(dev, pci_name(pdev)) + __field(u16, reqid) + __field(u16, rspid) + __field(int, rc) + ), + TP_fast_assign(__assign_str(dev, pci_name(pdev)); + __entry->reqid = reqid; + __entry->rspid = rspid; + __entry->rc = rc; + ), + TP_printk("[%s] req->id:0x%x rsp->id:0x%x resp_code:%d\n", + __get_str(dev), __entry->reqid, + __entry->rspid, __entry->rc) +); + +TRACE_EVENT(otx2_msg_interrupt, + TP_PROTO(const struct pci_dev *pdev, const char *msg, u64 intr), + TP_ARGS(pdev, msg, intr), + TP_STRUCT__entry(__string(dev, pci_name(pdev)) + __string(str, msg) + __field(u64, intr) + ), + TP_fast_assign(__assign_str(dev, pci_name(pdev)); + __assign_str(str, msg); + __entry->intr = intr; + ), + TP_printk("[%s] mbox interrupt %s (0x%llx)\n", __get_str(dev), + __get_str(str), __entry->intr) +); + +TRACE_EVENT(otx2_msg_process, + TP_PROTO(const struct pci_dev *pdev, u16 id, int err), + TP_ARGS(pdev, id, err), + TP_STRUCT__entry(__string(dev, pci_name(pdev)) + __field(u16, id) + __field(int, err) + ), + TP_fast_assign(__assign_str(dev, pci_name(pdev)); + __entry->id = id; + __entry->err = err; + ), + TP_printk("[%s] msg:(%s) error:%d\n", __get_str(dev), + otx2_mbox_id2name(__entry->id), __entry->err) +); + +#endif /* __RVU_TRACE_H */ + +#undef TRACE_INCLUDE_PATH +#define TRACE_INCLUDE_PATH . + +#undef TRACE_INCLUDE_FILE +#define TRACE_INCLUDE_FILE rvu_trace + +#include <trace/define_trace.h> diff --git a/drivers/net/ethernet/marvell/octeontx2/nic/Makefile b/drivers/net/ethernet/marvell/octeontx2/nic/Makefile new file mode 100644 index 000000000..3d31ddf7c --- /dev/null +++ b/drivers/net/ethernet/marvell/octeontx2/nic/Makefile @@ -0,0 +1,18 @@ +# SPDX-License-Identifier: GPL-2.0 +# +# Makefile for Marvell's RVU Ethernet device drivers +# + +obj-$(CONFIG_OCTEONTX2_PF) += rvu_nicpf.o otx2_ptp.o +obj-$(CONFIG_OCTEONTX2_VF) += rvu_nicvf.o otx2_ptp.o + +rvu_nicpf-y := otx2_pf.o otx2_common.o otx2_txrx.o otx2_ethtool.o \ + otx2_flows.o otx2_tc.o cn10k.o otx2_dmac_flt.o \ + otx2_devlink.o qos_sq.o +rvu_nicvf-y := otx2_vf.o otx2_devlink.o + +rvu_nicpf-$(CONFIG_DCB) += otx2_dcbnl.o +rvu_nicvf-$(CONFIG_DCB) += otx2_dcbnl.o +rvu_nicpf-$(CONFIG_MACSEC) += cn10k_macsec.o + +ccflags-y += -I$(srctree)/drivers/net/ethernet/marvell/octeontx2/af diff --git a/drivers/net/ethernet/marvell/octeontx2/nic/cn10k.c b/drivers/net/ethernet/marvell/octeontx2/nic/cn10k.c new file mode 100644 index 000000000..59d8d1ba1 --- /dev/null +++ b/drivers/net/ethernet/marvell/octeontx2/nic/cn10k.c @@ -0,0 +1,485 @@ +// SPDX-License-Identifier: GPL-2.0 +/* Marvell RVU Ethernet driver + * + * Copyright (C) 2021 Marvell. + * + */ + +#include "cn10k.h" +#include "otx2_reg.h" +#include "otx2_struct.h" + +static struct dev_hw_ops otx2_hw_ops = { + .sq_aq_init = otx2_sq_aq_init, + .sqe_flush = otx2_sqe_flush, + .aura_freeptr = otx2_aura_freeptr, + .refill_pool_ptrs = otx2_refill_pool_ptrs, +}; + +static struct dev_hw_ops cn10k_hw_ops = { + .sq_aq_init = cn10k_sq_aq_init, + .sqe_flush = cn10k_sqe_flush, + .aura_freeptr = cn10k_aura_freeptr, + .refill_pool_ptrs = cn10k_refill_pool_ptrs, +}; + +int cn10k_lmtst_init(struct otx2_nic *pfvf) +{ + + struct lmtst_tbl_setup_req *req; + struct otx2_lmt_info *lmt_info; + int err, cpu; + + if (!test_bit(CN10K_LMTST, &pfvf->hw.cap_flag)) { + pfvf->hw_ops = &otx2_hw_ops; + return 0; + } + + pfvf->hw_ops = &cn10k_hw_ops; + /* Total LMTLINES = num_online_cpus() * 32 (For Burst flush).*/ + pfvf->tot_lmt_lines = (num_online_cpus() * LMT_BURST_SIZE); + pfvf->hw.lmt_info = alloc_percpu(struct otx2_lmt_info); + + mutex_lock(&pfvf->mbox.lock); + req = otx2_mbox_alloc_msg_lmtst_tbl_setup(&pfvf->mbox); + if (!req) { + mutex_unlock(&pfvf->mbox.lock); + return -ENOMEM; + } + + req->use_local_lmt_region = true; + + err = qmem_alloc(pfvf->dev, &pfvf->dync_lmt, pfvf->tot_lmt_lines, + LMT_LINE_SIZE); + if (err) { + mutex_unlock(&pfvf->mbox.lock); + return err; + } + pfvf->hw.lmt_base = (u64 *)pfvf->dync_lmt->base; + req->lmt_iova = (u64)pfvf->dync_lmt->iova; + + err = otx2_sync_mbox_msg(&pfvf->mbox); + mutex_unlock(&pfvf->mbox.lock); + + for_each_possible_cpu(cpu) { + lmt_info = per_cpu_ptr(pfvf->hw.lmt_info, cpu); + lmt_info->lmt_addr = ((u64)pfvf->hw.lmt_base + + (cpu * LMT_BURST_SIZE * LMT_LINE_SIZE)); + lmt_info->lmt_id = cpu * LMT_BURST_SIZE; + } + + return 0; +} +EXPORT_SYMBOL(cn10k_lmtst_init); + +int cn10k_sq_aq_init(void *dev, u16 qidx, u16 sqb_aura) +{ + struct nix_cn10k_aq_enq_req *aq; + struct otx2_nic *pfvf = dev; + + /* Get memory to put this msg */ + aq = otx2_mbox_alloc_msg_nix_cn10k_aq_enq(&pfvf->mbox); + if (!aq) + return -ENOMEM; + + aq->sq.cq = pfvf->hw.rx_queues + qidx; + aq->sq.max_sqe_size = NIX_MAXSQESZ_W16; /* 128 byte */ + aq->sq.cq_ena = 1; + aq->sq.ena = 1; + aq->sq.smq = otx2_get_smq_idx(pfvf, qidx); + aq->sq.smq_rr_weight = mtu_to_dwrr_weight(pfvf, pfvf->tx_max_pktlen); + aq->sq.default_chan = pfvf->hw.tx_chan_base; + aq->sq.sqe_stype = NIX_STYPE_STF; /* Cache SQB */ + aq->sq.sqb_aura = sqb_aura; + aq->sq.sq_int_ena = NIX_SQINT_BITS; + aq->sq.qint_idx = 0; + /* Due pipelining impact minimum 2000 unused SQ CQE's + * need to maintain to avoid CQ overflow. + */ + aq->sq.cq_limit = ((SEND_CQ_SKID * 256) / (pfvf->qset.sqe_cnt)); + + /* Fill AQ info */ + aq->qidx = qidx; + aq->ctype = NIX_AQ_CTYPE_SQ; + aq->op = NIX_AQ_INSTOP_INIT; + + return otx2_sync_mbox_msg(&pfvf->mbox); +} + +#define NPA_MAX_BURST 16 +void cn10k_refill_pool_ptrs(void *dev, struct otx2_cq_queue *cq) +{ + struct otx2_nic *pfvf = dev; + u64 ptrs[NPA_MAX_BURST]; + int num_ptrs = 1; + dma_addr_t bufptr; + + /* Refill pool with new buffers */ + while (cq->pool_ptrs) { + if (otx2_alloc_buffer(pfvf, cq, &bufptr)) { + if (num_ptrs--) + __cn10k_aura_freeptr(pfvf, cq->cq_idx, ptrs, + num_ptrs); + break; + } + cq->pool_ptrs--; + ptrs[num_ptrs] = (u64)bufptr + OTX2_HEAD_ROOM; + num_ptrs++; + if (num_ptrs == NPA_MAX_BURST || cq->pool_ptrs == 0) { + __cn10k_aura_freeptr(pfvf, cq->cq_idx, ptrs, + num_ptrs); + num_ptrs = 1; + } + } +} + +void cn10k_sqe_flush(void *dev, struct otx2_snd_queue *sq, int size, int qidx) +{ + struct otx2_lmt_info *lmt_info; + struct otx2_nic *pfvf = dev; + u64 val = 0, tar_addr = 0; + + lmt_info = per_cpu_ptr(pfvf->hw.lmt_info, smp_processor_id()); + /* FIXME: val[0:10] LMT_ID. + * [12:15] no of LMTST - 1 in the burst. + * [19:63] data size of each LMTST in the burst except first. + */ + val = (lmt_info->lmt_id & 0x7FF); + /* Target address for LMTST flush tells HW how many 128bit + * words are present. + * tar_addr[6:4] size of first LMTST - 1 in units of 128b. + */ + tar_addr |= sq->io_addr | (((size / 16) - 1) & 0x7) << 4; + dma_wmb(); + memcpy((u64 *)lmt_info->lmt_addr, sq->sqe_base, size); + cn10k_lmt_flush(val, tar_addr); + + sq->head++; + sq->head &= (sq->sqe_cnt - 1); +} + +int cn10k_free_all_ipolicers(struct otx2_nic *pfvf) +{ + struct nix_bandprof_free_req *req; + int rc; + + if (is_dev_otx2(pfvf->pdev)) + return 0; + + mutex_lock(&pfvf->mbox.lock); + + req = otx2_mbox_alloc_msg_nix_bandprof_free(&pfvf->mbox); + if (!req) { + rc = -ENOMEM; + goto out; + } + + /* Free all bandwidth profiles allocated */ + req->free_all = true; + + rc = otx2_sync_mbox_msg(&pfvf->mbox); +out: + mutex_unlock(&pfvf->mbox.lock); + return rc; +} + +int cn10k_alloc_leaf_profile(struct otx2_nic *pfvf, u16 *leaf) +{ + struct nix_bandprof_alloc_req *req; + struct nix_bandprof_alloc_rsp *rsp; + int rc; + + req = otx2_mbox_alloc_msg_nix_bandprof_alloc(&pfvf->mbox); + if (!req) + return -ENOMEM; + + req->prof_count[BAND_PROF_LEAF_LAYER] = 1; + + rc = otx2_sync_mbox_msg(&pfvf->mbox); + if (rc) + goto out; + + rsp = (struct nix_bandprof_alloc_rsp *) + otx2_mbox_get_rsp(&pfvf->mbox.mbox, 0, &req->hdr); + if (!rsp->prof_count[BAND_PROF_LEAF_LAYER]) { + rc = -EIO; + goto out; + } + + *leaf = rsp->prof_idx[BAND_PROF_LEAF_LAYER][0]; +out: + if (rc) { + dev_warn(pfvf->dev, + "Failed to allocate ingress bandwidth policer\n"); + } + + return rc; +} + +int cn10k_alloc_matchall_ipolicer(struct otx2_nic *pfvf) +{ + struct otx2_hw *hw = &pfvf->hw; + int ret; + + mutex_lock(&pfvf->mbox.lock); + + ret = cn10k_alloc_leaf_profile(pfvf, &hw->matchall_ipolicer); + + mutex_unlock(&pfvf->mbox.lock); + + return ret; +} + +#define POLICER_TIMESTAMP 1 /* 1 second */ +#define MAX_RATE_EXP 22 /* Valid rate exponent range: 0 - 22 */ + +static void cn10k_get_ingress_burst_cfg(u32 burst, u32 *burst_exp, + u32 *burst_mantissa) +{ + int tmp; + + /* Burst is calculated as + * (1+[BURST_MANTISSA]/256)*2^[BURST_EXPONENT] + * This is the upper limit on number tokens (bytes) that + * can be accumulated in the bucket. + */ + *burst_exp = ilog2(burst); + if (burst < 256) { + /* No float: can't express mantissa in this case */ + *burst_mantissa = 0; + return; + } + + if (*burst_exp > MAX_RATE_EXP) + *burst_exp = MAX_RATE_EXP; + + /* Calculate mantissa + * Find remaining bytes 'burst - 2^burst_exp' + * mantissa = (remaining bytes) / 2^ (burst_exp - 8) + */ + tmp = burst - rounddown_pow_of_two(burst); + *burst_mantissa = tmp / (1UL << (*burst_exp - 8)); +} + +static void cn10k_get_ingress_rate_cfg(u64 rate, u32 *rate_exp, + u32 *rate_mantissa, u32 *rdiv) +{ + u32 div = 0; + u32 exp = 0; + u64 tmp; + + /* Figure out mantissa, exponent and divider from given max pkt rate + * + * To achieve desired rate HW adds + * (1+[RATE_MANTISSA]/256)*2^[RATE_EXPONENT] tokens (bytes) at every + * policer timeunit * 2^rdiv ie 2 * 2^rdiv usecs, to the token bucket. + * Here policer timeunit is 2 usecs and rate is in bits per sec. + * Since floating point cannot be used below algorithm uses 1000000 + * scale factor to support rates upto 100Gbps. + */ + tmp = rate * 32 * 2; + if (tmp < 256000000) { + while (tmp < 256000000) { + tmp = tmp * 2; + div++; + } + } else { + for (exp = 0; tmp >= 512000000 && exp <= MAX_RATE_EXP; exp++) + tmp = tmp / 2; + + if (exp > MAX_RATE_EXP) + exp = MAX_RATE_EXP; + } + + *rate_mantissa = (tmp - 256000000) / 1000000; + *rate_exp = exp; + *rdiv = div; +} + +int cn10k_map_unmap_rq_policer(struct otx2_nic *pfvf, int rq_idx, + u16 policer, bool map) +{ + struct nix_cn10k_aq_enq_req *aq; + + aq = otx2_mbox_alloc_msg_nix_cn10k_aq_enq(&pfvf->mbox); + if (!aq) + return -ENOMEM; + + /* Enable policing and set the bandwidth profile (policer) index */ + if (map) + aq->rq.policer_ena = 1; + else + aq->rq.policer_ena = 0; + aq->rq_mask.policer_ena = 1; + + aq->rq.band_prof_id = policer; + aq->rq_mask.band_prof_id = GENMASK(9, 0); + + /* Fill AQ info */ + aq->qidx = rq_idx; + aq->ctype = NIX_AQ_CTYPE_RQ; + aq->op = NIX_AQ_INSTOP_WRITE; + + return otx2_sync_mbox_msg(&pfvf->mbox); +} + +int cn10k_free_leaf_profile(struct otx2_nic *pfvf, u16 leaf) +{ + struct nix_bandprof_free_req *req; + + req = otx2_mbox_alloc_msg_nix_bandprof_free(&pfvf->mbox); + if (!req) + return -ENOMEM; + + req->prof_count[BAND_PROF_LEAF_LAYER] = 1; + req->prof_idx[BAND_PROF_LEAF_LAYER][0] = leaf; + + return otx2_sync_mbox_msg(&pfvf->mbox); +} + +int cn10k_free_matchall_ipolicer(struct otx2_nic *pfvf) +{ + struct otx2_hw *hw = &pfvf->hw; + int qidx, rc; + + mutex_lock(&pfvf->mbox.lock); + + /* Remove RQ's policer mapping */ + for (qidx = 0; qidx < hw->rx_queues; qidx++) + cn10k_map_unmap_rq_policer(pfvf, qidx, + hw->matchall_ipolicer, false); + + rc = cn10k_free_leaf_profile(pfvf, hw->matchall_ipolicer); + + mutex_unlock(&pfvf->mbox.lock); + return rc; +} + +int cn10k_set_ipolicer_rate(struct otx2_nic *pfvf, u16 profile, + u32 burst, u64 rate, bool pps) +{ + struct nix_cn10k_aq_enq_req *aq; + u32 burst_exp, burst_mantissa; + u32 rate_exp, rate_mantissa; + u32 rdiv; + + /* Get exponent and mantissa values for the desired rate */ + cn10k_get_ingress_burst_cfg(burst, &burst_exp, &burst_mantissa); + cn10k_get_ingress_rate_cfg(rate, &rate_exp, &rate_mantissa, &rdiv); + + /* Init bandwidth profile */ + aq = otx2_mbox_alloc_msg_nix_cn10k_aq_enq(&pfvf->mbox); + if (!aq) + return -ENOMEM; + + /* Set initial color mode to blind */ + aq->prof.icolor = 0x03; + aq->prof_mask.icolor = 0x03; + + /* Set rate and burst values */ + aq->prof.cir_exponent = rate_exp; + aq->prof_mask.cir_exponent = 0x1F; + + aq->prof.cir_mantissa = rate_mantissa; + aq->prof_mask.cir_mantissa = 0xFF; + + aq->prof.cbs_exponent = burst_exp; + aq->prof_mask.cbs_exponent = 0x1F; + + aq->prof.cbs_mantissa = burst_mantissa; + aq->prof_mask.cbs_mantissa = 0xFF; + + aq->prof.rdiv = rdiv; + aq->prof_mask.rdiv = 0xF; + + if (pps) { + /* The amount of decremented tokens is calculated according to + * the following equation: + * max([ LMODE ? 0 : (packet_length - LXPTR)] + + * ([ADJUST_MANTISSA]/256 - 1) * 2^[ADJUST_EXPONENT], + * 1/256) + * if LMODE is 1 then rate limiting will be based on + * PPS otherwise bps. + * The aim of the ADJUST value is to specify a token cost per + * packet in contrary to the packet length that specifies a + * cost per byte. To rate limit based on PPS adjust mantissa + * is set as 384 and exponent as 1 so that number of tokens + * decremented becomes 1 i.e, 1 token per packeet. + */ + aq->prof.adjust_exponent = 1; + aq->prof_mask.adjust_exponent = 0x1F; + + aq->prof.adjust_mantissa = 384; + aq->prof_mask.adjust_mantissa = 0x1FF; + + aq->prof.lmode = 0x1; + aq->prof_mask.lmode = 0x1; + } + + /* Two rate three color marker + * With PEIR/EIR set to zero, color will be either green or red + */ + aq->prof.meter_algo = 2; + aq->prof_mask.meter_algo = 0x3; + + aq->prof.rc_action = NIX_RX_BAND_PROF_ACTIONRESULT_DROP; + aq->prof_mask.rc_action = 0x3; + + aq->prof.yc_action = NIX_RX_BAND_PROF_ACTIONRESULT_PASS; + aq->prof_mask.yc_action = 0x3; + + aq->prof.gc_action = NIX_RX_BAND_PROF_ACTIONRESULT_PASS; + aq->prof_mask.gc_action = 0x3; + + /* Setting exponent value as 24 and mantissa as 0 configures + * the bucket with zero values making bucket unused. Peak + * information rate and Excess information rate buckets are + * unused here. + */ + aq->prof.peir_exponent = 24; + aq->prof_mask.peir_exponent = 0x1F; + + aq->prof.peir_mantissa = 0; + aq->prof_mask.peir_mantissa = 0xFF; + + aq->prof.pebs_exponent = 24; + aq->prof_mask.pebs_exponent = 0x1F; + + aq->prof.pebs_mantissa = 0; + aq->prof_mask.pebs_mantissa = 0xFF; + + aq->prof.hl_en = 0; + aq->prof_mask.hl_en = 1; + + /* Fill AQ info */ + aq->qidx = profile; + aq->ctype = NIX_AQ_CTYPE_BANDPROF; + aq->op = NIX_AQ_INSTOP_WRITE; + + return otx2_sync_mbox_msg(&pfvf->mbox); +} + +int cn10k_set_matchall_ipolicer_rate(struct otx2_nic *pfvf, + u32 burst, u64 rate) +{ + struct otx2_hw *hw = &pfvf->hw; + int qidx, rc; + + mutex_lock(&pfvf->mbox.lock); + + rc = cn10k_set_ipolicer_rate(pfvf, hw->matchall_ipolicer, burst, + rate, false); + if (rc) + goto out; + + for (qidx = 0; qidx < hw->rx_queues; qidx++) { + rc = cn10k_map_unmap_rq_policer(pfvf, qidx, + hw->matchall_ipolicer, true); + if (rc) + break; + } + +out: + mutex_unlock(&pfvf->mbox.lock); + return rc; +} diff --git a/drivers/net/ethernet/marvell/octeontx2/nic/cn10k.h b/drivers/net/ethernet/marvell/octeontx2/nic/cn10k.h new file mode 100644 index 000000000..8ae968158 --- /dev/null +++ b/drivers/net/ethernet/marvell/octeontx2/nic/cn10k.h @@ -0,0 +1,42 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* Marvell RVU Ethernet driver + * + * Copyright (C) 2021 Marvell. + * + */ + +#ifndef CN10K_H +#define CN10K_H + +#include "otx2_common.h" + +static inline int mtu_to_dwrr_weight(struct otx2_nic *pfvf, int mtu) +{ + u32 weight; + + /* On OTx2, since AF returns DWRR_MTU as '1', this logic + * will work on those silicons as well. + */ + weight = mtu / pfvf->hw.dwrr_mtu; + if (mtu % pfvf->hw.dwrr_mtu) + weight += 1; + + return weight; +} + +void cn10k_refill_pool_ptrs(void *dev, struct otx2_cq_queue *cq); +void cn10k_sqe_flush(void *dev, struct otx2_snd_queue *sq, int size, int qidx); +int cn10k_sq_aq_init(void *dev, u16 qidx, u16 sqb_aura); +int cn10k_lmtst_init(struct otx2_nic *pfvf); +int cn10k_free_all_ipolicers(struct otx2_nic *pfvf); +int cn10k_alloc_matchall_ipolicer(struct otx2_nic *pfvf); +int cn10k_free_matchall_ipolicer(struct otx2_nic *pfvf); +int cn10k_set_matchall_ipolicer_rate(struct otx2_nic *pfvf, + u32 burst, u64 rate); +int cn10k_map_unmap_rq_policer(struct otx2_nic *pfvf, int rq_idx, + u16 policer, bool map); +int cn10k_alloc_leaf_profile(struct otx2_nic *pfvf, u16 *leaf); +int cn10k_set_ipolicer_rate(struct otx2_nic *pfvf, u16 profile, + u32 burst, u64 rate, bool pps); +int cn10k_free_leaf_profile(struct otx2_nic *pfvf, u16 leaf); +#endif /* CN10K_H */ diff --git a/drivers/net/ethernet/marvell/octeontx2/nic/cn10k_macsec.c b/drivers/net/ethernet/marvell/octeontx2/nic/cn10k_macsec.c new file mode 100644 index 000000000..a487a98ea --- /dev/null +++ b/drivers/net/ethernet/marvell/octeontx2/nic/cn10k_macsec.c @@ -0,0 +1,1693 @@ +// SPDX-License-Identifier: GPL-2.0 +/* Marvell MACSEC hardware offload driver + * + * Copyright (C) 2022 Marvell. + */ + +#include <linux/rtnetlink.h> +#include <linux/bitfield.h> +#include <net/macsec.h> +#include "otx2_common.h" + +#define MCS_TCAM0_MAC_DA_MASK GENMASK_ULL(47, 0) +#define MCS_TCAM0_MAC_SA_MASK GENMASK_ULL(63, 48) +#define MCS_TCAM1_MAC_SA_MASK GENMASK_ULL(31, 0) +#define MCS_TCAM1_ETYPE_MASK GENMASK_ULL(47, 32) + +#define MCS_SA_MAP_MEM_SA_USE BIT_ULL(9) + +#define MCS_RX_SECY_PLCY_RW_MASK GENMASK_ULL(49, 18) +#define MCS_RX_SECY_PLCY_RP BIT_ULL(17) +#define MCS_RX_SECY_PLCY_AUTH_ENA BIT_ULL(16) +#define MCS_RX_SECY_PLCY_CIP GENMASK_ULL(8, 5) +#define MCS_RX_SECY_PLCY_VAL GENMASK_ULL(2, 1) +#define MCS_RX_SECY_PLCY_ENA BIT_ULL(0) + +#define MCS_TX_SECY_PLCY_MTU GENMASK_ULL(43, 28) +#define MCS_TX_SECY_PLCY_ST_TCI GENMASK_ULL(27, 22) +#define MCS_TX_SECY_PLCY_ST_OFFSET GENMASK_ULL(21, 15) +#define MCS_TX_SECY_PLCY_INS_MODE BIT_ULL(14) +#define MCS_TX_SECY_PLCY_AUTH_ENA BIT_ULL(13) +#define MCS_TX_SECY_PLCY_CIP GENMASK_ULL(5, 2) +#define MCS_TX_SECY_PLCY_PROTECT BIT_ULL(1) +#define MCS_TX_SECY_PLCY_ENA BIT_ULL(0) + +#define MCS_GCM_AES_128 0 +#define MCS_GCM_AES_256 1 +#define MCS_GCM_AES_XPN_128 2 +#define MCS_GCM_AES_XPN_256 3 + +#define MCS_TCI_ES 0x40 /* end station */ +#define MCS_TCI_SC 0x20 /* SCI present */ +#define MCS_TCI_SCB 0x10 /* epon */ +#define MCS_TCI_E 0x08 /* encryption */ +#define MCS_TCI_C 0x04 /* changed text */ + +static struct cn10k_mcs_txsc *cn10k_mcs_get_txsc(struct cn10k_mcs_cfg *cfg, + struct macsec_secy *secy) +{ + struct cn10k_mcs_txsc *txsc; + + list_for_each_entry(txsc, &cfg->txsc_list, entry) { + if (txsc->sw_secy == secy) + return txsc; + } + + return NULL; +} + +static struct cn10k_mcs_rxsc *cn10k_mcs_get_rxsc(struct cn10k_mcs_cfg *cfg, + struct macsec_secy *secy, + struct macsec_rx_sc *rx_sc) +{ + struct cn10k_mcs_rxsc *rxsc; + + list_for_each_entry(rxsc, &cfg->rxsc_list, entry) { + if (rxsc->sw_rxsc == rx_sc && rxsc->sw_secy == secy) + return rxsc; + } + + return NULL; +} + +static const char *rsrc_name(enum mcs_rsrc_type rsrc_type) +{ + switch (rsrc_type) { + case MCS_RSRC_TYPE_FLOWID: + return "FLOW"; + case MCS_RSRC_TYPE_SC: + return "SC"; + case MCS_RSRC_TYPE_SECY: + return "SECY"; + case MCS_RSRC_TYPE_SA: + return "SA"; + default: + return "Unknown"; + }; + + return "Unknown"; +} + +static int cn10k_mcs_alloc_rsrc(struct otx2_nic *pfvf, enum mcs_direction dir, + enum mcs_rsrc_type type, u16 *rsrc_id) +{ + struct mbox *mbox = &pfvf->mbox; + struct mcs_alloc_rsrc_req *req; + struct mcs_alloc_rsrc_rsp *rsp; + int ret = -ENOMEM; + + mutex_lock(&mbox->lock); + + req = otx2_mbox_alloc_msg_mcs_alloc_resources(mbox); + if (!req) + goto fail; + + req->rsrc_type = type; + req->rsrc_cnt = 1; + req->dir = dir; + + ret = otx2_sync_mbox_msg(mbox); + if (ret) + goto fail; + + rsp = (struct mcs_alloc_rsrc_rsp *)otx2_mbox_get_rsp(&pfvf->mbox.mbox, + 0, &req->hdr); + if (IS_ERR(rsp) || req->rsrc_cnt != rsp->rsrc_cnt || + req->rsrc_type != rsp->rsrc_type || req->dir != rsp->dir) { + ret = -EINVAL; + goto fail; + } + + switch (rsp->rsrc_type) { + case MCS_RSRC_TYPE_FLOWID: + *rsrc_id = rsp->flow_ids[0]; + break; + case MCS_RSRC_TYPE_SC: + *rsrc_id = rsp->sc_ids[0]; + break; + case MCS_RSRC_TYPE_SECY: + *rsrc_id = rsp->secy_ids[0]; + break; + case MCS_RSRC_TYPE_SA: + *rsrc_id = rsp->sa_ids[0]; + break; + default: + ret = -EINVAL; + goto fail; + } + + mutex_unlock(&mbox->lock); + + return 0; +fail: + dev_err(pfvf->dev, "Failed to allocate %s %s resource\n", + dir == MCS_TX ? "TX" : "RX", rsrc_name(type)); + mutex_unlock(&mbox->lock); + return ret; +} + +static void cn10k_mcs_free_rsrc(struct otx2_nic *pfvf, enum mcs_direction dir, + enum mcs_rsrc_type type, u16 hw_rsrc_id, + bool all) +{ + struct mcs_clear_stats *clear_req; + struct mbox *mbox = &pfvf->mbox; + struct mcs_free_rsrc_req *req; + + mutex_lock(&mbox->lock); + + clear_req = otx2_mbox_alloc_msg_mcs_clear_stats(mbox); + if (!clear_req) + goto fail; + + clear_req->id = hw_rsrc_id; + clear_req->type = type; + clear_req->dir = dir; + + req = otx2_mbox_alloc_msg_mcs_free_resources(mbox); + if (!req) + goto fail; + + req->rsrc_id = hw_rsrc_id; + req->rsrc_type = type; + req->dir = dir; + if (all) + req->all = 1; + + if (otx2_sync_mbox_msg(&pfvf->mbox)) + goto fail; + + mutex_unlock(&mbox->lock); + + return; +fail: + dev_err(pfvf->dev, "Failed to free %s %s resource\n", + dir == MCS_TX ? "TX" : "RX", rsrc_name(type)); + mutex_unlock(&mbox->lock); +} + +static int cn10k_mcs_alloc_txsa(struct otx2_nic *pfvf, u16 *hw_sa_id) +{ + return cn10k_mcs_alloc_rsrc(pfvf, MCS_TX, MCS_RSRC_TYPE_SA, hw_sa_id); +} + +static int cn10k_mcs_alloc_rxsa(struct otx2_nic *pfvf, u16 *hw_sa_id) +{ + return cn10k_mcs_alloc_rsrc(pfvf, MCS_RX, MCS_RSRC_TYPE_SA, hw_sa_id); +} + +static void cn10k_mcs_free_txsa(struct otx2_nic *pfvf, u16 hw_sa_id) +{ + cn10k_mcs_free_rsrc(pfvf, MCS_TX, MCS_RSRC_TYPE_SA, hw_sa_id, false); +} + +static void cn10k_mcs_free_rxsa(struct otx2_nic *pfvf, u16 hw_sa_id) +{ + cn10k_mcs_free_rsrc(pfvf, MCS_RX, MCS_RSRC_TYPE_SA, hw_sa_id, false); +} + +static int cn10k_mcs_write_rx_secy(struct otx2_nic *pfvf, + struct macsec_secy *secy, u8 hw_secy_id) +{ + struct mcs_secy_plcy_write_req *req; + struct mbox *mbox = &pfvf->mbox; + u64 policy; + int ret; + + mutex_lock(&mbox->lock); + + req = otx2_mbox_alloc_msg_mcs_secy_plcy_write(mbox); + if (!req) { + ret = -ENOMEM; + goto fail; + } + + policy = FIELD_PREP(MCS_RX_SECY_PLCY_RW_MASK, secy->replay_window); + if (secy->replay_protect) + policy |= MCS_RX_SECY_PLCY_RP; + + policy |= MCS_RX_SECY_PLCY_AUTH_ENA; + policy |= FIELD_PREP(MCS_RX_SECY_PLCY_CIP, MCS_GCM_AES_128); + policy |= FIELD_PREP(MCS_RX_SECY_PLCY_VAL, secy->validate_frames); + + policy |= MCS_RX_SECY_PLCY_ENA; + + req->plcy = policy; + req->secy_id = hw_secy_id; + req->dir = MCS_RX; + + ret = otx2_sync_mbox_msg(mbox); + +fail: + mutex_unlock(&mbox->lock); + return ret; +} + +static int cn10k_mcs_write_rx_flowid(struct otx2_nic *pfvf, + struct cn10k_mcs_rxsc *rxsc, u8 hw_secy_id) +{ + struct macsec_rx_sc *sw_rx_sc = rxsc->sw_rxsc; + struct macsec_secy *secy = rxsc->sw_secy; + struct mcs_flowid_entry_write_req *req; + struct mbox *mbox = &pfvf->mbox; + u64 mac_da; + int ret; + + mutex_lock(&mbox->lock); + + req = otx2_mbox_alloc_msg_mcs_flowid_entry_write(mbox); + if (!req) { + ret = -ENOMEM; + goto fail; + } + + mac_da = ether_addr_to_u64(secy->netdev->dev_addr); + + req->data[0] = FIELD_PREP(MCS_TCAM0_MAC_DA_MASK, mac_da); + req->mask[0] = ~0ULL; + req->mask[0] = ~MCS_TCAM0_MAC_DA_MASK; + + req->data[1] = FIELD_PREP(MCS_TCAM1_ETYPE_MASK, ETH_P_MACSEC); + req->mask[1] = ~0ULL; + req->mask[1] &= ~MCS_TCAM1_ETYPE_MASK; + + req->mask[2] = ~0ULL; + req->mask[3] = ~0ULL; + + req->flow_id = rxsc->hw_flow_id; + req->secy_id = hw_secy_id; + req->sc_id = rxsc->hw_sc_id; + req->dir = MCS_RX; + + if (sw_rx_sc->active) + req->ena = 1; + + ret = otx2_sync_mbox_msg(mbox); + +fail: + mutex_unlock(&mbox->lock); + return ret; +} + +static int cn10k_mcs_write_sc_cam(struct otx2_nic *pfvf, + struct cn10k_mcs_rxsc *rxsc, u8 hw_secy_id) +{ + struct macsec_rx_sc *sw_rx_sc = rxsc->sw_rxsc; + struct mcs_rx_sc_cam_write_req *sc_req; + struct mbox *mbox = &pfvf->mbox; + int ret; + + mutex_lock(&mbox->lock); + + sc_req = otx2_mbox_alloc_msg_mcs_rx_sc_cam_write(mbox); + if (!sc_req) { + ret = -ENOMEM; + goto fail; + } + + sc_req->sci = (__force u64)cpu_to_be64((__force u64)sw_rx_sc->sci); + sc_req->sc_id = rxsc->hw_sc_id; + sc_req->secy_id = hw_secy_id; + + ret = otx2_sync_mbox_msg(mbox); + +fail: + mutex_unlock(&mbox->lock); + return ret; +} + +static int cn10k_mcs_write_rx_sa_plcy(struct otx2_nic *pfvf, + struct macsec_secy *secy, + struct cn10k_mcs_rxsc *rxsc, + u8 assoc_num, bool sa_in_use) +{ + unsigned char *src = rxsc->sa_key[assoc_num]; + struct mcs_sa_plcy_write_req *plcy_req; + struct mcs_rx_sc_sa_map *map_req; + struct mbox *mbox = &pfvf->mbox; + u8 reg, key_len; + int ret; + + mutex_lock(&mbox->lock); + + plcy_req = otx2_mbox_alloc_msg_mcs_sa_plcy_write(mbox); + if (!plcy_req) { + ret = -ENOMEM; + goto fail; + } + + map_req = otx2_mbox_alloc_msg_mcs_rx_sc_sa_map_write(mbox); + if (!map_req) { + otx2_mbox_reset(&mbox->mbox, 0); + ret = -ENOMEM; + goto fail; + } + + for (reg = 0, key_len = 0; key_len < secy->key_len; key_len += 8) { + memcpy((u8 *)&plcy_req->plcy[0][reg], + (src + reg * 8), 8); + reg++; + } + + plcy_req->sa_index[0] = rxsc->hw_sa_id[assoc_num]; + plcy_req->sa_cnt = 1; + plcy_req->dir = MCS_RX; + + map_req->sa_index = rxsc->hw_sa_id[assoc_num]; + map_req->sa_in_use = sa_in_use; + map_req->sc_id = rxsc->hw_sc_id; + map_req->an = assoc_num; + + /* Send two messages together */ + ret = otx2_sync_mbox_msg(mbox); + +fail: + mutex_unlock(&mbox->lock); + return ret; +} + +static int cn10k_mcs_write_rx_sa_pn(struct otx2_nic *pfvf, + struct cn10k_mcs_rxsc *rxsc, + u8 assoc_num, u64 next_pn) +{ + struct mcs_pn_table_write_req *req; + struct mbox *mbox = &pfvf->mbox; + int ret; + + mutex_lock(&mbox->lock); + + req = otx2_mbox_alloc_msg_mcs_pn_table_write(mbox); + if (!req) { + ret = -ENOMEM; + goto fail; + } + + req->pn_id = rxsc->hw_sa_id[assoc_num]; + req->next_pn = next_pn; + req->dir = MCS_RX; + + ret = otx2_sync_mbox_msg(mbox); + +fail: + mutex_unlock(&mbox->lock); + return ret; +} + +static int cn10k_mcs_write_tx_secy(struct otx2_nic *pfvf, + struct macsec_secy *secy, + struct cn10k_mcs_txsc *txsc) +{ + struct mcs_secy_plcy_write_req *req; + struct mbox *mbox = &pfvf->mbox; + struct macsec_tx_sc *sw_tx_sc; + /* Insert SecTag after 12 bytes (DA+SA)*/ + u8 tag_offset = 12; + u8 sectag_tci = 0; + u64 policy; + int ret; + + sw_tx_sc = &secy->tx_sc; + + mutex_lock(&mbox->lock); + + req = otx2_mbox_alloc_msg_mcs_secy_plcy_write(mbox); + if (!req) { + ret = -ENOMEM; + goto fail; + } + + if (sw_tx_sc->send_sci) { + sectag_tci |= MCS_TCI_SC; + } else { + if (sw_tx_sc->end_station) + sectag_tci |= MCS_TCI_ES; + if (sw_tx_sc->scb) + sectag_tci |= MCS_TCI_SCB; + } + + if (sw_tx_sc->encrypt) + sectag_tci |= (MCS_TCI_E | MCS_TCI_C); + + policy = FIELD_PREP(MCS_TX_SECY_PLCY_MTU, secy->netdev->mtu); + /* Write SecTag excluding AN bits(1..0) */ + policy |= FIELD_PREP(MCS_TX_SECY_PLCY_ST_TCI, sectag_tci >> 2); + policy |= FIELD_PREP(MCS_TX_SECY_PLCY_ST_OFFSET, tag_offset); + policy |= MCS_TX_SECY_PLCY_INS_MODE; + policy |= MCS_TX_SECY_PLCY_AUTH_ENA; + policy |= FIELD_PREP(MCS_TX_SECY_PLCY_CIP, MCS_GCM_AES_128); + + if (secy->protect_frames) + policy |= MCS_TX_SECY_PLCY_PROTECT; + + /* If the encodingsa does not exist/active and protect is + * not set then frames can be sent out as it is. Hence enable + * the policy irrespective of secy operational when !protect. + */ + if (!secy->protect_frames || secy->operational) + policy |= MCS_TX_SECY_PLCY_ENA; + + req->plcy = policy; + req->secy_id = txsc->hw_secy_id_tx; + req->dir = MCS_TX; + + ret = otx2_sync_mbox_msg(mbox); + +fail: + mutex_unlock(&mbox->lock); + return ret; +} + +static int cn10k_mcs_write_tx_flowid(struct otx2_nic *pfvf, + struct macsec_secy *secy, + struct cn10k_mcs_txsc *txsc) +{ + struct mcs_flowid_entry_write_req *req; + struct mbox *mbox = &pfvf->mbox; + u64 mac_sa; + int ret; + + mutex_lock(&mbox->lock); + + req = otx2_mbox_alloc_msg_mcs_flowid_entry_write(mbox); + if (!req) { + ret = -ENOMEM; + goto fail; + } + + mac_sa = ether_addr_to_u64(secy->netdev->dev_addr); + + req->data[0] = FIELD_PREP(MCS_TCAM0_MAC_SA_MASK, mac_sa); + req->data[1] = FIELD_PREP(MCS_TCAM1_MAC_SA_MASK, mac_sa >> 16); + + req->mask[0] = ~0ULL; + req->mask[0] &= ~MCS_TCAM0_MAC_SA_MASK; + + req->mask[1] = ~0ULL; + req->mask[1] &= ~MCS_TCAM1_MAC_SA_MASK; + + req->mask[2] = ~0ULL; + req->mask[3] = ~0ULL; + + req->flow_id = txsc->hw_flow_id; + req->secy_id = txsc->hw_secy_id_tx; + req->sc_id = txsc->hw_sc_id; + req->sci = (__force u64)cpu_to_be64((__force u64)secy->sci); + req->dir = MCS_TX; + /* This can be enabled since stack xmits packets only when interface is up */ + req->ena = 1; + + ret = otx2_sync_mbox_msg(mbox); + +fail: + mutex_unlock(&mbox->lock); + return ret; +} + +static int cn10k_mcs_link_tx_sa2sc(struct otx2_nic *pfvf, + struct macsec_secy *secy, + struct cn10k_mcs_txsc *txsc, + u8 sa_num, bool sa_active) +{ + struct mcs_tx_sc_sa_map *map_req; + struct mbox *mbox = &pfvf->mbox; + int ret; + + /* Link the encoding_sa only to SC out of all SAs */ + if (txsc->encoding_sa != sa_num) + return 0; + + mutex_lock(&mbox->lock); + + map_req = otx2_mbox_alloc_msg_mcs_tx_sc_sa_map_write(mbox); + if (!map_req) { + otx2_mbox_reset(&mbox->mbox, 0); + ret = -ENOMEM; + goto fail; + } + + map_req->sa_index0 = txsc->hw_sa_id[sa_num]; + map_req->sa_index0_vld = sa_active; + map_req->sectag_sci = (__force u64)cpu_to_be64((__force u64)secy->sci); + map_req->sc_id = txsc->hw_sc_id; + + ret = otx2_sync_mbox_msg(mbox); + +fail: + mutex_unlock(&mbox->lock); + return ret; +} + +static int cn10k_mcs_write_tx_sa_plcy(struct otx2_nic *pfvf, + struct macsec_secy *secy, + struct cn10k_mcs_txsc *txsc, + u8 assoc_num) +{ + unsigned char *src = txsc->sa_key[assoc_num]; + struct mcs_sa_plcy_write_req *plcy_req; + struct mbox *mbox = &pfvf->mbox; + u8 reg, key_len; + int ret; + + mutex_lock(&mbox->lock); + + plcy_req = otx2_mbox_alloc_msg_mcs_sa_plcy_write(mbox); + if (!plcy_req) { + ret = -ENOMEM; + goto fail; + } + + for (reg = 0, key_len = 0; key_len < secy->key_len; key_len += 8) { + memcpy((u8 *)&plcy_req->plcy[0][reg], (src + reg * 8), 8); + reg++; + } + + plcy_req->plcy[0][8] = assoc_num; + plcy_req->sa_index[0] = txsc->hw_sa_id[assoc_num]; + plcy_req->sa_cnt = 1; + plcy_req->dir = MCS_TX; + + ret = otx2_sync_mbox_msg(mbox); + +fail: + mutex_unlock(&mbox->lock); + return ret; +} + +static int cn10k_write_tx_sa_pn(struct otx2_nic *pfvf, + struct cn10k_mcs_txsc *txsc, + u8 assoc_num, u64 next_pn) +{ + struct mcs_pn_table_write_req *req; + struct mbox *mbox = &pfvf->mbox; + int ret; + + mutex_lock(&mbox->lock); + + req = otx2_mbox_alloc_msg_mcs_pn_table_write(mbox); + if (!req) { + ret = -ENOMEM; + goto fail; + } + + req->pn_id = txsc->hw_sa_id[assoc_num]; + req->next_pn = next_pn; + req->dir = MCS_TX; + + ret = otx2_sync_mbox_msg(mbox); + +fail: + mutex_unlock(&mbox->lock); + return ret; +} + +static int cn10k_mcs_ena_dis_flowid(struct otx2_nic *pfvf, u16 hw_flow_id, + bool enable, enum mcs_direction dir) +{ + struct mcs_flowid_ena_dis_entry *req; + struct mbox *mbox = &pfvf->mbox; + int ret; + + mutex_lock(&mbox->lock); + + req = otx2_mbox_alloc_msg_mcs_flowid_ena_entry(mbox); + if (!req) { + ret = -ENOMEM; + goto fail; + } + + req->flow_id = hw_flow_id; + req->ena = enable; + req->dir = dir; + + ret = otx2_sync_mbox_msg(mbox); + +fail: + mutex_unlock(&mbox->lock); + return ret; +} + +static int cn10k_mcs_sa_stats(struct otx2_nic *pfvf, u8 hw_sa_id, + struct mcs_sa_stats *rsp_p, + enum mcs_direction dir, bool clear) +{ + struct mcs_clear_stats *clear_req; + struct mbox *mbox = &pfvf->mbox; + struct mcs_stats_req *req; + struct mcs_sa_stats *rsp; + int ret; + + mutex_lock(&mbox->lock); + + req = otx2_mbox_alloc_msg_mcs_get_sa_stats(mbox); + if (!req) { + ret = -ENOMEM; + goto fail; + } + + req->id = hw_sa_id; + req->dir = dir; + + if (!clear) + goto send_msg; + + clear_req = otx2_mbox_alloc_msg_mcs_clear_stats(mbox); + if (!clear_req) { + ret = -ENOMEM; + goto fail; + } + clear_req->id = hw_sa_id; + clear_req->dir = dir; + clear_req->type = MCS_RSRC_TYPE_SA; + +send_msg: + ret = otx2_sync_mbox_msg(mbox); + if (ret) + goto fail; + + rsp = (struct mcs_sa_stats *)otx2_mbox_get_rsp(&pfvf->mbox.mbox, + 0, &req->hdr); + if (IS_ERR(rsp)) { + ret = PTR_ERR(rsp); + goto fail; + } + + memcpy(rsp_p, rsp, sizeof(*rsp_p)); + + mutex_unlock(&mbox->lock); + + return 0; +fail: + mutex_unlock(&mbox->lock); + return ret; +} + +static int cn10k_mcs_sc_stats(struct otx2_nic *pfvf, u8 hw_sc_id, + struct mcs_sc_stats *rsp_p, + enum mcs_direction dir, bool clear) +{ + struct mcs_clear_stats *clear_req; + struct mbox *mbox = &pfvf->mbox; + struct mcs_stats_req *req; + struct mcs_sc_stats *rsp; + int ret; + + mutex_lock(&mbox->lock); + + req = otx2_mbox_alloc_msg_mcs_get_sc_stats(mbox); + if (!req) { + ret = -ENOMEM; + goto fail; + } + + req->id = hw_sc_id; + req->dir = dir; + + if (!clear) + goto send_msg; + + clear_req = otx2_mbox_alloc_msg_mcs_clear_stats(mbox); + if (!clear_req) { + ret = -ENOMEM; + goto fail; + } + clear_req->id = hw_sc_id; + clear_req->dir = dir; + clear_req->type = MCS_RSRC_TYPE_SC; + +send_msg: + ret = otx2_sync_mbox_msg(mbox); + if (ret) + goto fail; + + rsp = (struct mcs_sc_stats *)otx2_mbox_get_rsp(&pfvf->mbox.mbox, + 0, &req->hdr); + if (IS_ERR(rsp)) { + ret = PTR_ERR(rsp); + goto fail; + } + + memcpy(rsp_p, rsp, sizeof(*rsp_p)); + + mutex_unlock(&mbox->lock); + + return 0; +fail: + mutex_unlock(&mbox->lock); + return ret; +} + +static int cn10k_mcs_secy_stats(struct otx2_nic *pfvf, u8 hw_secy_id, + struct mcs_secy_stats *rsp_p, + enum mcs_direction dir, bool clear) +{ + struct mcs_clear_stats *clear_req; + struct mbox *mbox = &pfvf->mbox; + struct mcs_secy_stats *rsp; + struct mcs_stats_req *req; + int ret; + + mutex_lock(&mbox->lock); + + req = otx2_mbox_alloc_msg_mcs_get_secy_stats(mbox); + if (!req) { + ret = -ENOMEM; + goto fail; + } + + req->id = hw_secy_id; + req->dir = dir; + + if (!clear) + goto send_msg; + + clear_req = otx2_mbox_alloc_msg_mcs_clear_stats(mbox); + if (!clear_req) { + ret = -ENOMEM; + goto fail; + } + clear_req->id = hw_secy_id; + clear_req->dir = dir; + clear_req->type = MCS_RSRC_TYPE_SECY; + +send_msg: + ret = otx2_sync_mbox_msg(mbox); + if (ret) + goto fail; + + rsp = (struct mcs_secy_stats *)otx2_mbox_get_rsp(&pfvf->mbox.mbox, + 0, &req->hdr); + if (IS_ERR(rsp)) { + ret = PTR_ERR(rsp); + goto fail; + } + + memcpy(rsp_p, rsp, sizeof(*rsp_p)); + + mutex_unlock(&mbox->lock); + + return 0; +fail: + mutex_unlock(&mbox->lock); + return ret; +} + +static struct cn10k_mcs_txsc *cn10k_mcs_create_txsc(struct otx2_nic *pfvf) +{ + struct cn10k_mcs_txsc *txsc; + int ret; + + txsc = kzalloc(sizeof(*txsc), GFP_KERNEL); + if (!txsc) + return ERR_PTR(-ENOMEM); + + ret = cn10k_mcs_alloc_rsrc(pfvf, MCS_TX, MCS_RSRC_TYPE_FLOWID, + &txsc->hw_flow_id); + if (ret) + goto fail; + + /* For a SecY, one TX secy and one RX secy HW resources are needed */ + ret = cn10k_mcs_alloc_rsrc(pfvf, MCS_TX, MCS_RSRC_TYPE_SECY, + &txsc->hw_secy_id_tx); + if (ret) + goto free_flowid; + + ret = cn10k_mcs_alloc_rsrc(pfvf, MCS_RX, MCS_RSRC_TYPE_SECY, + &txsc->hw_secy_id_rx); + if (ret) + goto free_tx_secy; + + ret = cn10k_mcs_alloc_rsrc(pfvf, MCS_TX, MCS_RSRC_TYPE_SC, + &txsc->hw_sc_id); + if (ret) + goto free_rx_secy; + + return txsc; +free_rx_secy: + cn10k_mcs_free_rsrc(pfvf, MCS_RX, MCS_RSRC_TYPE_SECY, + txsc->hw_secy_id_rx, false); +free_tx_secy: + cn10k_mcs_free_rsrc(pfvf, MCS_TX, MCS_RSRC_TYPE_SECY, + txsc->hw_secy_id_tx, false); +free_flowid: + cn10k_mcs_free_rsrc(pfvf, MCS_TX, MCS_RSRC_TYPE_FLOWID, + txsc->hw_flow_id, false); +fail: + kfree(txsc); + return ERR_PTR(ret); +} + +/* Free Tx SC and its SAs(if any) resources to AF + */ +static void cn10k_mcs_delete_txsc(struct otx2_nic *pfvf, + struct cn10k_mcs_txsc *txsc) +{ + u8 sa_bmap = txsc->sa_bmap; + u8 sa_num = 0; + + while (sa_bmap) { + if (sa_bmap & 1) { + cn10k_mcs_write_tx_sa_plcy(pfvf, txsc->sw_secy, + txsc, sa_num); + cn10k_mcs_free_txsa(pfvf, txsc->hw_sa_id[sa_num]); + } + sa_num++; + sa_bmap >>= 1; + } + + cn10k_mcs_free_rsrc(pfvf, MCS_TX, MCS_RSRC_TYPE_SC, + txsc->hw_sc_id, false); + cn10k_mcs_free_rsrc(pfvf, MCS_RX, MCS_RSRC_TYPE_SECY, + txsc->hw_secy_id_rx, false); + cn10k_mcs_free_rsrc(pfvf, MCS_TX, MCS_RSRC_TYPE_SECY, + txsc->hw_secy_id_tx, false); + cn10k_mcs_free_rsrc(pfvf, MCS_TX, MCS_RSRC_TYPE_FLOWID, + txsc->hw_flow_id, false); +} + +static struct cn10k_mcs_rxsc *cn10k_mcs_create_rxsc(struct otx2_nic *pfvf) +{ + struct cn10k_mcs_rxsc *rxsc; + int ret; + + rxsc = kzalloc(sizeof(*rxsc), GFP_KERNEL); + if (!rxsc) + return ERR_PTR(-ENOMEM); + + ret = cn10k_mcs_alloc_rsrc(pfvf, MCS_RX, MCS_RSRC_TYPE_FLOWID, + &rxsc->hw_flow_id); + if (ret) + goto fail; + + ret = cn10k_mcs_alloc_rsrc(pfvf, MCS_RX, MCS_RSRC_TYPE_SC, + &rxsc->hw_sc_id); + if (ret) + goto free_flowid; + + return rxsc; +free_flowid: + cn10k_mcs_free_rsrc(pfvf, MCS_RX, MCS_RSRC_TYPE_FLOWID, + rxsc->hw_flow_id, false); +fail: + kfree(rxsc); + return ERR_PTR(ret); +} + +/* Free Rx SC and its SAs(if any) resources to AF + */ +static void cn10k_mcs_delete_rxsc(struct otx2_nic *pfvf, + struct cn10k_mcs_rxsc *rxsc) +{ + u8 sa_bmap = rxsc->sa_bmap; + u8 sa_num = 0; + + while (sa_bmap) { + if (sa_bmap & 1) { + cn10k_mcs_write_rx_sa_plcy(pfvf, rxsc->sw_secy, rxsc, + sa_num, false); + cn10k_mcs_free_rxsa(pfvf, rxsc->hw_sa_id[sa_num]); + } + sa_num++; + sa_bmap >>= 1; + } + + cn10k_mcs_free_rsrc(pfvf, MCS_RX, MCS_RSRC_TYPE_SC, + rxsc->hw_sc_id, false); + cn10k_mcs_free_rsrc(pfvf, MCS_RX, MCS_RSRC_TYPE_FLOWID, + rxsc->hw_flow_id, false); +} + +static int cn10k_mcs_secy_tx_cfg(struct otx2_nic *pfvf, struct macsec_secy *secy, + struct cn10k_mcs_txsc *txsc, + struct macsec_tx_sa *sw_tx_sa, u8 sa_num) +{ + if (sw_tx_sa) { + cn10k_mcs_write_tx_sa_plcy(pfvf, secy, txsc, sa_num); + cn10k_write_tx_sa_pn(pfvf, txsc, sa_num, + sw_tx_sa->next_pn_halves.lower); + cn10k_mcs_link_tx_sa2sc(pfvf, secy, txsc, sa_num, + sw_tx_sa->active); + } + + cn10k_mcs_write_tx_secy(pfvf, secy, txsc); + cn10k_mcs_write_tx_flowid(pfvf, secy, txsc); + /* When updating secy, change RX secy also */ + cn10k_mcs_write_rx_secy(pfvf, secy, txsc->hw_secy_id_rx); + + return 0; +} + +static int cn10k_mcs_secy_rx_cfg(struct otx2_nic *pfvf, + struct macsec_secy *secy, u8 hw_secy_id) +{ + struct cn10k_mcs_cfg *cfg = pfvf->macsec_cfg; + struct cn10k_mcs_rxsc *mcs_rx_sc; + struct macsec_rx_sc *sw_rx_sc; + struct macsec_rx_sa *sw_rx_sa; + u8 sa_num; + + for (sw_rx_sc = rcu_dereference_bh(secy->rx_sc); sw_rx_sc && sw_rx_sc->active; + sw_rx_sc = rcu_dereference_bh(sw_rx_sc->next)) { + mcs_rx_sc = cn10k_mcs_get_rxsc(cfg, secy, sw_rx_sc); + if (unlikely(!mcs_rx_sc)) + continue; + + for (sa_num = 0; sa_num < CN10K_MCS_SA_PER_SC; sa_num++) { + sw_rx_sa = rcu_dereference_bh(sw_rx_sc->sa[sa_num]); + if (!sw_rx_sa) + continue; + + cn10k_mcs_write_rx_sa_plcy(pfvf, secy, mcs_rx_sc, + sa_num, sw_rx_sa->active); + cn10k_mcs_write_rx_sa_pn(pfvf, mcs_rx_sc, sa_num, + sw_rx_sa->next_pn_halves.lower); + } + + cn10k_mcs_write_rx_flowid(pfvf, mcs_rx_sc, hw_secy_id); + cn10k_mcs_write_sc_cam(pfvf, mcs_rx_sc, hw_secy_id); + } + + return 0; +} + +static int cn10k_mcs_disable_rxscs(struct otx2_nic *pfvf, + struct macsec_secy *secy, + bool delete) +{ + struct cn10k_mcs_cfg *cfg = pfvf->macsec_cfg; + struct cn10k_mcs_rxsc *mcs_rx_sc; + struct macsec_rx_sc *sw_rx_sc; + int ret; + + for (sw_rx_sc = rcu_dereference_bh(secy->rx_sc); sw_rx_sc && sw_rx_sc->active; + sw_rx_sc = rcu_dereference_bh(sw_rx_sc->next)) { + mcs_rx_sc = cn10k_mcs_get_rxsc(cfg, secy, sw_rx_sc); + if (unlikely(!mcs_rx_sc)) + continue; + + ret = cn10k_mcs_ena_dis_flowid(pfvf, mcs_rx_sc->hw_flow_id, + false, MCS_RX); + if (ret) + dev_err(pfvf->dev, "Failed to disable TCAM for SC %d\n", + mcs_rx_sc->hw_sc_id); + if (delete) { + cn10k_mcs_delete_rxsc(pfvf, mcs_rx_sc); + list_del(&mcs_rx_sc->entry); + kfree(mcs_rx_sc); + } + } + + return 0; +} + +static void cn10k_mcs_sync_stats(struct otx2_nic *pfvf, struct macsec_secy *secy, + struct cn10k_mcs_txsc *txsc) +{ + struct cn10k_mcs_cfg *cfg = pfvf->macsec_cfg; + struct mcs_secy_stats rx_rsp = { 0 }; + struct mcs_sc_stats sc_rsp = { 0 }; + struct cn10k_mcs_rxsc *rxsc; + + /* Because of shared counters for some stats in the hardware, when + * updating secy policy take a snapshot of current stats and reset them. + * Below are the effected stats because of shared counters. + */ + + /* Check if sync is really needed */ + if (secy->validate_frames == txsc->last_validate_frames && + secy->replay_protect == txsc->last_replay_protect) + return; + + cn10k_mcs_secy_stats(pfvf, txsc->hw_secy_id_rx, &rx_rsp, MCS_RX, true); + + txsc->stats.InPktsBadTag += rx_rsp.pkt_badtag_cnt; + txsc->stats.InPktsUnknownSCI += rx_rsp.pkt_nosa_cnt; + txsc->stats.InPktsNoSCI += rx_rsp.pkt_nosaerror_cnt; + if (txsc->last_validate_frames == MACSEC_VALIDATE_STRICT) + txsc->stats.InPktsNoTag += rx_rsp.pkt_untaged_cnt; + else + txsc->stats.InPktsUntagged += rx_rsp.pkt_untaged_cnt; + + list_for_each_entry(rxsc, &cfg->rxsc_list, entry) { + cn10k_mcs_sc_stats(pfvf, rxsc->hw_sc_id, &sc_rsp, MCS_RX, true); + + rxsc->stats.InOctetsValidated += sc_rsp.octet_validate_cnt; + rxsc->stats.InOctetsDecrypted += sc_rsp.octet_decrypt_cnt; + + rxsc->stats.InPktsInvalid += sc_rsp.pkt_invalid_cnt; + rxsc->stats.InPktsNotValid += sc_rsp.pkt_notvalid_cnt; + + if (txsc->last_replay_protect) + rxsc->stats.InPktsLate += sc_rsp.pkt_late_cnt; + else + rxsc->stats.InPktsDelayed += sc_rsp.pkt_late_cnt; + + if (txsc->last_validate_frames == MACSEC_VALIDATE_DISABLED) + rxsc->stats.InPktsUnchecked += sc_rsp.pkt_unchecked_cnt; + else + rxsc->stats.InPktsOK += sc_rsp.pkt_unchecked_cnt; + } + + txsc->last_validate_frames = secy->validate_frames; + txsc->last_replay_protect = secy->replay_protect; +} + +static int cn10k_mdo_open(struct macsec_context *ctx) +{ + struct otx2_nic *pfvf = netdev_priv(ctx->netdev); + struct cn10k_mcs_cfg *cfg = pfvf->macsec_cfg; + struct macsec_secy *secy = ctx->secy; + struct macsec_tx_sa *sw_tx_sa; + struct cn10k_mcs_txsc *txsc; + u8 sa_num; + int err; + + txsc = cn10k_mcs_get_txsc(cfg, ctx->secy); + if (!txsc) + return -ENOENT; + + sa_num = txsc->encoding_sa; + sw_tx_sa = rcu_dereference_bh(secy->tx_sc.sa[sa_num]); + + err = cn10k_mcs_secy_tx_cfg(pfvf, secy, txsc, sw_tx_sa, sa_num); + if (err) + return err; + + return cn10k_mcs_secy_rx_cfg(pfvf, secy, txsc->hw_secy_id_rx); +} + +static int cn10k_mdo_stop(struct macsec_context *ctx) +{ + struct otx2_nic *pfvf = netdev_priv(ctx->netdev); + struct cn10k_mcs_cfg *cfg = pfvf->macsec_cfg; + struct cn10k_mcs_txsc *txsc; + int err; + + txsc = cn10k_mcs_get_txsc(cfg, ctx->secy); + if (!txsc) + return -ENOENT; + + err = cn10k_mcs_ena_dis_flowid(pfvf, txsc->hw_flow_id, false, MCS_TX); + if (err) + return err; + + return cn10k_mcs_disable_rxscs(pfvf, ctx->secy, false); +} + +static int cn10k_mdo_add_secy(struct macsec_context *ctx) +{ + struct otx2_nic *pfvf = netdev_priv(ctx->netdev); + struct cn10k_mcs_cfg *cfg = pfvf->macsec_cfg; + struct macsec_secy *secy = ctx->secy; + struct cn10k_mcs_txsc *txsc; + + if (secy->icv_len != MACSEC_DEFAULT_ICV_LEN) + return -EOPNOTSUPP; + + /* Stick to 16 bytes key len until XPN support is added */ + if (secy->key_len != 16) + return -EOPNOTSUPP; + + if (secy->xpn) + return -EOPNOTSUPP; + + txsc = cn10k_mcs_create_txsc(pfvf); + if (IS_ERR(txsc)) + return -ENOSPC; + + txsc->sw_secy = secy; + txsc->encoding_sa = secy->tx_sc.encoding_sa; + txsc->last_validate_frames = secy->validate_frames; + txsc->last_replay_protect = secy->replay_protect; + + list_add(&txsc->entry, &cfg->txsc_list); + + if (netif_running(secy->netdev)) + return cn10k_mcs_secy_tx_cfg(pfvf, secy, txsc, NULL, 0); + + return 0; +} + +static int cn10k_mdo_upd_secy(struct macsec_context *ctx) +{ + struct otx2_nic *pfvf = netdev_priv(ctx->netdev); + struct cn10k_mcs_cfg *cfg = pfvf->macsec_cfg; + struct macsec_secy *secy = ctx->secy; + struct macsec_tx_sa *sw_tx_sa; + struct cn10k_mcs_txsc *txsc; + bool active; + u8 sa_num; + int err; + + txsc = cn10k_mcs_get_txsc(cfg, secy); + if (!txsc) + return -ENOENT; + + /* Encoding SA got changed */ + if (txsc->encoding_sa != secy->tx_sc.encoding_sa) { + txsc->encoding_sa = secy->tx_sc.encoding_sa; + sa_num = txsc->encoding_sa; + sw_tx_sa = rcu_dereference_bh(secy->tx_sc.sa[sa_num]); + active = sw_tx_sa ? sw_tx_sa->active : false; + cn10k_mcs_link_tx_sa2sc(pfvf, secy, txsc, sa_num, active); + } + + if (netif_running(secy->netdev)) { + cn10k_mcs_sync_stats(pfvf, secy, txsc); + + err = cn10k_mcs_secy_tx_cfg(pfvf, secy, txsc, NULL, 0); + if (err) + return err; + } + + return 0; +} + +static int cn10k_mdo_del_secy(struct macsec_context *ctx) +{ + struct otx2_nic *pfvf = netdev_priv(ctx->netdev); + struct cn10k_mcs_cfg *cfg = pfvf->macsec_cfg; + struct cn10k_mcs_txsc *txsc; + + txsc = cn10k_mcs_get_txsc(cfg, ctx->secy); + if (!txsc) + return -ENOENT; + + cn10k_mcs_ena_dis_flowid(pfvf, txsc->hw_flow_id, false, MCS_TX); + cn10k_mcs_disable_rxscs(pfvf, ctx->secy, true); + cn10k_mcs_delete_txsc(pfvf, txsc); + list_del(&txsc->entry); + kfree(txsc); + + return 0; +} + +static int cn10k_mdo_add_txsa(struct macsec_context *ctx) +{ + struct otx2_nic *pfvf = netdev_priv(ctx->netdev); + struct macsec_tx_sa *sw_tx_sa = ctx->sa.tx_sa; + struct cn10k_mcs_cfg *cfg = pfvf->macsec_cfg; + struct macsec_secy *secy = ctx->secy; + u8 sa_num = ctx->sa.assoc_num; + struct cn10k_mcs_txsc *txsc; + int err; + + txsc = cn10k_mcs_get_txsc(cfg, secy); + if (!txsc) + return -ENOENT; + + if (sa_num >= CN10K_MCS_SA_PER_SC) + return -EOPNOTSUPP; + + if (cn10k_mcs_alloc_txsa(pfvf, &txsc->hw_sa_id[sa_num])) + return -ENOSPC; + + memcpy(&txsc->sa_key[sa_num], ctx->sa.key, secy->key_len); + txsc->sa_bmap |= 1 << sa_num; + + if (netif_running(secy->netdev)) { + err = cn10k_mcs_write_tx_sa_plcy(pfvf, secy, txsc, sa_num); + if (err) + return err; + + err = cn10k_write_tx_sa_pn(pfvf, txsc, sa_num, + sw_tx_sa->next_pn_halves.lower); + if (err) + return err; + + err = cn10k_mcs_link_tx_sa2sc(pfvf, secy, txsc, + sa_num, sw_tx_sa->active); + if (err) + return err; + } + + return 0; +} + +static int cn10k_mdo_upd_txsa(struct macsec_context *ctx) +{ + struct otx2_nic *pfvf = netdev_priv(ctx->netdev); + struct macsec_tx_sa *sw_tx_sa = ctx->sa.tx_sa; + struct cn10k_mcs_cfg *cfg = pfvf->macsec_cfg; + struct macsec_secy *secy = ctx->secy; + u8 sa_num = ctx->sa.assoc_num; + struct cn10k_mcs_txsc *txsc; + int err; + + txsc = cn10k_mcs_get_txsc(cfg, secy); + if (!txsc) + return -ENOENT; + + if (sa_num >= CN10K_MCS_SA_PER_SC) + return -EOPNOTSUPP; + + if (netif_running(secy->netdev)) { + /* Keys cannot be changed after creation */ + err = cn10k_write_tx_sa_pn(pfvf, txsc, sa_num, + sw_tx_sa->next_pn_halves.lower); + if (err) + return err; + + err = cn10k_mcs_link_tx_sa2sc(pfvf, secy, txsc, + sa_num, sw_tx_sa->active); + if (err) + return err; + } + + return 0; +} + +static int cn10k_mdo_del_txsa(struct macsec_context *ctx) +{ + struct otx2_nic *pfvf = netdev_priv(ctx->netdev); + struct cn10k_mcs_cfg *cfg = pfvf->macsec_cfg; + u8 sa_num = ctx->sa.assoc_num; + struct cn10k_mcs_txsc *txsc; + + txsc = cn10k_mcs_get_txsc(cfg, ctx->secy); + if (!txsc) + return -ENOENT; + + if (sa_num >= CN10K_MCS_SA_PER_SC) + return -EOPNOTSUPP; + + cn10k_mcs_free_txsa(pfvf, txsc->hw_sa_id[sa_num]); + txsc->sa_bmap &= ~(1 << sa_num); + + return 0; +} + +static int cn10k_mdo_add_rxsc(struct macsec_context *ctx) +{ + struct otx2_nic *pfvf = netdev_priv(ctx->netdev); + struct cn10k_mcs_cfg *cfg = pfvf->macsec_cfg; + struct macsec_secy *secy = ctx->secy; + struct cn10k_mcs_rxsc *rxsc; + struct cn10k_mcs_txsc *txsc; + int err; + + txsc = cn10k_mcs_get_txsc(cfg, secy); + if (!txsc) + return -ENOENT; + + rxsc = cn10k_mcs_create_rxsc(pfvf); + if (IS_ERR(rxsc)) + return -ENOSPC; + + rxsc->sw_secy = ctx->secy; + rxsc->sw_rxsc = ctx->rx_sc; + list_add(&rxsc->entry, &cfg->rxsc_list); + + if (netif_running(secy->netdev)) { + err = cn10k_mcs_write_rx_flowid(pfvf, rxsc, txsc->hw_secy_id_rx); + if (err) + return err; + + err = cn10k_mcs_write_sc_cam(pfvf, rxsc, txsc->hw_secy_id_rx); + if (err) + return err; + } + + return 0; +} + +static int cn10k_mdo_upd_rxsc(struct macsec_context *ctx) +{ + struct otx2_nic *pfvf = netdev_priv(ctx->netdev); + struct cn10k_mcs_cfg *cfg = pfvf->macsec_cfg; + struct macsec_secy *secy = ctx->secy; + bool enable = ctx->rx_sc->active; + struct cn10k_mcs_rxsc *rxsc; + + rxsc = cn10k_mcs_get_rxsc(cfg, secy, ctx->rx_sc); + if (!rxsc) + return -ENOENT; + + if (netif_running(secy->netdev)) + return cn10k_mcs_ena_dis_flowid(pfvf, rxsc->hw_flow_id, + enable, MCS_RX); + + return 0; +} + +static int cn10k_mdo_del_rxsc(struct macsec_context *ctx) +{ + struct otx2_nic *pfvf = netdev_priv(ctx->netdev); + struct cn10k_mcs_cfg *cfg = pfvf->macsec_cfg; + struct cn10k_mcs_rxsc *rxsc; + + rxsc = cn10k_mcs_get_rxsc(cfg, ctx->secy, ctx->rx_sc); + if (!rxsc) + return -ENOENT; + + cn10k_mcs_ena_dis_flowid(pfvf, rxsc->hw_flow_id, false, MCS_RX); + cn10k_mcs_delete_rxsc(pfvf, rxsc); + list_del(&rxsc->entry); + kfree(rxsc); + + return 0; +} + +static int cn10k_mdo_add_rxsa(struct macsec_context *ctx) +{ + struct macsec_rx_sc *sw_rx_sc = ctx->sa.rx_sa->sc; + struct otx2_nic *pfvf = netdev_priv(ctx->netdev); + struct cn10k_mcs_cfg *cfg = pfvf->macsec_cfg; + struct macsec_rx_sa *rx_sa = ctx->sa.rx_sa; + u64 next_pn = rx_sa->next_pn_halves.lower; + struct macsec_secy *secy = ctx->secy; + bool sa_in_use = rx_sa->active; + u8 sa_num = ctx->sa.assoc_num; + struct cn10k_mcs_rxsc *rxsc; + int err; + + rxsc = cn10k_mcs_get_rxsc(cfg, secy, sw_rx_sc); + if (!rxsc) + return -ENOENT; + + if (sa_num >= CN10K_MCS_SA_PER_SC) + return -EOPNOTSUPP; + + if (cn10k_mcs_alloc_rxsa(pfvf, &rxsc->hw_sa_id[sa_num])) + return -ENOSPC; + + memcpy(&rxsc->sa_key[sa_num], ctx->sa.key, ctx->secy->key_len); + rxsc->sa_bmap |= 1 << sa_num; + + if (netif_running(secy->netdev)) { + err = cn10k_mcs_write_rx_sa_plcy(pfvf, secy, rxsc, + sa_num, sa_in_use); + if (err) + return err; + + err = cn10k_mcs_write_rx_sa_pn(pfvf, rxsc, sa_num, next_pn); + if (err) + return err; + } + + return 0; +} + +static int cn10k_mdo_upd_rxsa(struct macsec_context *ctx) +{ + struct macsec_rx_sc *sw_rx_sc = ctx->sa.rx_sa->sc; + struct otx2_nic *pfvf = netdev_priv(ctx->netdev); + struct cn10k_mcs_cfg *cfg = pfvf->macsec_cfg; + struct macsec_rx_sa *rx_sa = ctx->sa.rx_sa; + u64 next_pn = rx_sa->next_pn_halves.lower; + struct macsec_secy *secy = ctx->secy; + bool sa_in_use = rx_sa->active; + u8 sa_num = ctx->sa.assoc_num; + struct cn10k_mcs_rxsc *rxsc; + int err; + + rxsc = cn10k_mcs_get_rxsc(cfg, secy, sw_rx_sc); + if (!rxsc) + return -ENOENT; + + if (sa_num >= CN10K_MCS_SA_PER_SC) + return -EOPNOTSUPP; + + if (netif_running(secy->netdev)) { + err = cn10k_mcs_write_rx_sa_plcy(pfvf, secy, rxsc, sa_num, sa_in_use); + if (err) + return err; + + err = cn10k_mcs_write_rx_sa_pn(pfvf, rxsc, sa_num, next_pn); + if (err) + return err; + } + + return 0; +} + +static int cn10k_mdo_del_rxsa(struct macsec_context *ctx) +{ + struct macsec_rx_sc *sw_rx_sc = ctx->sa.rx_sa->sc; + struct otx2_nic *pfvf = netdev_priv(ctx->netdev); + struct cn10k_mcs_cfg *cfg = pfvf->macsec_cfg; + u8 sa_num = ctx->sa.assoc_num; + struct cn10k_mcs_rxsc *rxsc; + + rxsc = cn10k_mcs_get_rxsc(cfg, ctx->secy, sw_rx_sc); + if (!rxsc) + return -ENOENT; + + if (sa_num >= CN10K_MCS_SA_PER_SC) + return -EOPNOTSUPP; + + cn10k_mcs_write_rx_sa_plcy(pfvf, ctx->secy, rxsc, sa_num, false); + cn10k_mcs_free_rxsa(pfvf, rxsc->hw_sa_id[sa_num]); + + rxsc->sa_bmap &= ~(1 << sa_num); + + return 0; +} + +static int cn10k_mdo_get_dev_stats(struct macsec_context *ctx) +{ + struct mcs_secy_stats tx_rsp = { 0 }, rx_rsp = { 0 }; + struct otx2_nic *pfvf = netdev_priv(ctx->netdev); + struct cn10k_mcs_cfg *cfg = pfvf->macsec_cfg; + struct macsec_secy *secy = ctx->secy; + struct cn10k_mcs_txsc *txsc; + + txsc = cn10k_mcs_get_txsc(cfg, ctx->secy); + if (!txsc) + return -ENOENT; + + cn10k_mcs_secy_stats(pfvf, txsc->hw_secy_id_tx, &tx_rsp, MCS_TX, false); + ctx->stats.dev_stats->OutPktsUntagged = tx_rsp.pkt_untagged_cnt; + ctx->stats.dev_stats->OutPktsTooLong = tx_rsp.pkt_toolong_cnt; + + cn10k_mcs_secy_stats(pfvf, txsc->hw_secy_id_rx, &rx_rsp, MCS_RX, true); + txsc->stats.InPktsBadTag += rx_rsp.pkt_badtag_cnt; + txsc->stats.InPktsUnknownSCI += rx_rsp.pkt_nosa_cnt; + txsc->stats.InPktsNoSCI += rx_rsp.pkt_nosaerror_cnt; + if (secy->validate_frames == MACSEC_VALIDATE_STRICT) + txsc->stats.InPktsNoTag += rx_rsp.pkt_untaged_cnt; + else + txsc->stats.InPktsUntagged += rx_rsp.pkt_untaged_cnt; + txsc->stats.InPktsOverrun = 0; + + ctx->stats.dev_stats->InPktsNoTag = txsc->stats.InPktsNoTag; + ctx->stats.dev_stats->InPktsUntagged = txsc->stats.InPktsUntagged; + ctx->stats.dev_stats->InPktsBadTag = txsc->stats.InPktsBadTag; + ctx->stats.dev_stats->InPktsUnknownSCI = txsc->stats.InPktsUnknownSCI; + ctx->stats.dev_stats->InPktsNoSCI = txsc->stats.InPktsNoSCI; + ctx->stats.dev_stats->InPktsOverrun = txsc->stats.InPktsOverrun; + + return 0; +} + +static int cn10k_mdo_get_tx_sc_stats(struct macsec_context *ctx) +{ + struct otx2_nic *pfvf = netdev_priv(ctx->netdev); + struct cn10k_mcs_cfg *cfg = pfvf->macsec_cfg; + struct mcs_sc_stats rsp = { 0 }; + struct cn10k_mcs_txsc *txsc; + + txsc = cn10k_mcs_get_txsc(cfg, ctx->secy); + if (!txsc) + return -ENOENT; + + cn10k_mcs_sc_stats(pfvf, txsc->hw_sc_id, &rsp, MCS_TX, false); + + ctx->stats.tx_sc_stats->OutPktsProtected = rsp.pkt_protected_cnt; + ctx->stats.tx_sc_stats->OutPktsEncrypted = rsp.pkt_encrypt_cnt; + ctx->stats.tx_sc_stats->OutOctetsProtected = rsp.octet_protected_cnt; + ctx->stats.tx_sc_stats->OutOctetsEncrypted = rsp.octet_encrypt_cnt; + + return 0; +} + +static int cn10k_mdo_get_tx_sa_stats(struct macsec_context *ctx) +{ + struct otx2_nic *pfvf = netdev_priv(ctx->netdev); + struct cn10k_mcs_cfg *cfg = pfvf->macsec_cfg; + struct mcs_sa_stats rsp = { 0 }; + u8 sa_num = ctx->sa.assoc_num; + struct cn10k_mcs_txsc *txsc; + + txsc = cn10k_mcs_get_txsc(cfg, ctx->secy); + if (!txsc) + return -ENOENT; + + if (sa_num >= CN10K_MCS_SA_PER_SC) + return -EOPNOTSUPP; + + cn10k_mcs_sa_stats(pfvf, txsc->hw_sa_id[sa_num], &rsp, MCS_TX, false); + + ctx->stats.tx_sa_stats->OutPktsProtected = rsp.pkt_protected_cnt; + ctx->stats.tx_sa_stats->OutPktsEncrypted = rsp.pkt_encrypt_cnt; + + return 0; +} + +static int cn10k_mdo_get_rx_sc_stats(struct macsec_context *ctx) +{ + struct otx2_nic *pfvf = netdev_priv(ctx->netdev); + struct cn10k_mcs_cfg *cfg = pfvf->macsec_cfg; + struct macsec_secy *secy = ctx->secy; + struct mcs_sc_stats rsp = { 0 }; + struct cn10k_mcs_rxsc *rxsc; + + rxsc = cn10k_mcs_get_rxsc(cfg, secy, ctx->rx_sc); + if (!rxsc) + return -ENOENT; + + cn10k_mcs_sc_stats(pfvf, rxsc->hw_sc_id, &rsp, MCS_RX, true); + + rxsc->stats.InOctetsValidated += rsp.octet_validate_cnt; + rxsc->stats.InOctetsDecrypted += rsp.octet_decrypt_cnt; + + rxsc->stats.InPktsInvalid += rsp.pkt_invalid_cnt; + rxsc->stats.InPktsNotValid += rsp.pkt_notvalid_cnt; + + if (secy->replay_protect) + rxsc->stats.InPktsLate += rsp.pkt_late_cnt; + else + rxsc->stats.InPktsDelayed += rsp.pkt_late_cnt; + + if (secy->validate_frames == MACSEC_VALIDATE_DISABLED) + rxsc->stats.InPktsUnchecked += rsp.pkt_unchecked_cnt; + else + rxsc->stats.InPktsOK += rsp.pkt_unchecked_cnt; + + ctx->stats.rx_sc_stats->InOctetsValidated = rxsc->stats.InOctetsValidated; + ctx->stats.rx_sc_stats->InOctetsDecrypted = rxsc->stats.InOctetsDecrypted; + ctx->stats.rx_sc_stats->InPktsInvalid = rxsc->stats.InPktsInvalid; + ctx->stats.rx_sc_stats->InPktsNotValid = rxsc->stats.InPktsNotValid; + ctx->stats.rx_sc_stats->InPktsLate = rxsc->stats.InPktsLate; + ctx->stats.rx_sc_stats->InPktsDelayed = rxsc->stats.InPktsDelayed; + ctx->stats.rx_sc_stats->InPktsUnchecked = rxsc->stats.InPktsUnchecked; + ctx->stats.rx_sc_stats->InPktsOK = rxsc->stats.InPktsOK; + + return 0; +} + +static int cn10k_mdo_get_rx_sa_stats(struct macsec_context *ctx) +{ + struct macsec_rx_sc *sw_rx_sc = ctx->sa.rx_sa->sc; + struct otx2_nic *pfvf = netdev_priv(ctx->netdev); + struct cn10k_mcs_cfg *cfg = pfvf->macsec_cfg; + struct mcs_sa_stats rsp = { 0 }; + u8 sa_num = ctx->sa.assoc_num; + struct cn10k_mcs_rxsc *rxsc; + + rxsc = cn10k_mcs_get_rxsc(cfg, ctx->secy, sw_rx_sc); + if (!rxsc) + return -ENOENT; + + if (sa_num >= CN10K_MCS_SA_PER_SC) + return -EOPNOTSUPP; + + cn10k_mcs_sa_stats(pfvf, rxsc->hw_sa_id[sa_num], &rsp, MCS_RX, false); + + ctx->stats.rx_sa_stats->InPktsOK = rsp.pkt_ok_cnt; + ctx->stats.rx_sa_stats->InPktsInvalid = rsp.pkt_invalid_cnt; + ctx->stats.rx_sa_stats->InPktsNotValid = rsp.pkt_notvalid_cnt; + ctx->stats.rx_sa_stats->InPktsNotUsingSA = rsp.pkt_nosaerror_cnt; + ctx->stats.rx_sa_stats->InPktsUnusedSA = rsp.pkt_nosa_cnt; + + return 0; +} + +static const struct macsec_ops cn10k_mcs_ops = { + .mdo_dev_open = cn10k_mdo_open, + .mdo_dev_stop = cn10k_mdo_stop, + .mdo_add_secy = cn10k_mdo_add_secy, + .mdo_upd_secy = cn10k_mdo_upd_secy, + .mdo_del_secy = cn10k_mdo_del_secy, + .mdo_add_rxsc = cn10k_mdo_add_rxsc, + .mdo_upd_rxsc = cn10k_mdo_upd_rxsc, + .mdo_del_rxsc = cn10k_mdo_del_rxsc, + .mdo_add_rxsa = cn10k_mdo_add_rxsa, + .mdo_upd_rxsa = cn10k_mdo_upd_rxsa, + .mdo_del_rxsa = cn10k_mdo_del_rxsa, + .mdo_add_txsa = cn10k_mdo_add_txsa, + .mdo_upd_txsa = cn10k_mdo_upd_txsa, + .mdo_del_txsa = cn10k_mdo_del_txsa, + .mdo_get_dev_stats = cn10k_mdo_get_dev_stats, + .mdo_get_tx_sc_stats = cn10k_mdo_get_tx_sc_stats, + .mdo_get_tx_sa_stats = cn10k_mdo_get_tx_sa_stats, + .mdo_get_rx_sc_stats = cn10k_mdo_get_rx_sc_stats, + .mdo_get_rx_sa_stats = cn10k_mdo_get_rx_sa_stats, +}; + +void cn10k_handle_mcs_event(struct otx2_nic *pfvf, struct mcs_intr_info *event) +{ + struct cn10k_mcs_cfg *cfg = pfvf->macsec_cfg; + struct macsec_tx_sa *sw_tx_sa = NULL; + struct macsec_secy *secy = NULL; + struct cn10k_mcs_txsc *txsc; + u8 an; + + if (!test_bit(CN10K_HW_MACSEC, &pfvf->hw.cap_flag)) + return; + + if (!(event->intr_mask & MCS_CPM_TX_PACKET_XPN_EQ0_INT)) + return; + + /* Find the SecY to which the expired hardware SA is mapped */ + list_for_each_entry(txsc, &cfg->txsc_list, entry) { + for (an = 0; an < CN10K_MCS_SA_PER_SC; an++) + if (txsc->hw_sa_id[an] == event->sa_id) { + secy = txsc->sw_secy; + sw_tx_sa = rcu_dereference_bh(secy->tx_sc.sa[an]); + } + } + + if (secy && sw_tx_sa) + macsec_pn_wrapped(secy, sw_tx_sa); +} + +int cn10k_mcs_init(struct otx2_nic *pfvf) +{ + struct mbox *mbox = &pfvf->mbox; + struct cn10k_mcs_cfg *cfg; + struct mcs_intr_cfg *req; + + if (!test_bit(CN10K_HW_MACSEC, &pfvf->hw.cap_flag)) + return 0; + + cfg = kzalloc(sizeof(*cfg), GFP_KERNEL); + if (!cfg) + return -ENOMEM; + + INIT_LIST_HEAD(&cfg->txsc_list); + INIT_LIST_HEAD(&cfg->rxsc_list); + pfvf->macsec_cfg = cfg; + + pfvf->netdev->features |= NETIF_F_HW_MACSEC; + pfvf->netdev->macsec_ops = &cn10k_mcs_ops; + + mutex_lock(&mbox->lock); + + req = otx2_mbox_alloc_msg_mcs_intr_cfg(mbox); + if (!req) + goto fail; + + req->intr_mask = MCS_CPM_TX_PACKET_XPN_EQ0_INT; + + if (otx2_sync_mbox_msg(mbox)) + goto fail; + + mutex_unlock(&mbox->lock); + + return 0; +fail: + dev_err(pfvf->dev, "Cannot notify PN wrapped event\n"); + mutex_unlock(&mbox->lock); + return 0; +} + +void cn10k_mcs_free(struct otx2_nic *pfvf) +{ + if (!test_bit(CN10K_HW_MACSEC, &pfvf->hw.cap_flag)) + return; + + cn10k_mcs_free_rsrc(pfvf, MCS_TX, MCS_RSRC_TYPE_SECY, 0, true); + cn10k_mcs_free_rsrc(pfvf, MCS_RX, MCS_RSRC_TYPE_SECY, 0, true); + kfree(pfvf->macsec_cfg); + pfvf->macsec_cfg = NULL; +} diff --git a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_common.c b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_common.c new file mode 100644 index 000000000..0f896f606 --- /dev/null +++ b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_common.c @@ -0,0 +1,1867 @@ +// SPDX-License-Identifier: GPL-2.0 +/* Marvell RVU Ethernet driver + * + * Copyright (C) 2020 Marvell. + * + */ + +#include <linux/interrupt.h> +#include <linux/pci.h> +#include <net/tso.h> + +#include "otx2_reg.h" +#include "otx2_common.h" +#include "otx2_struct.h" +#include "cn10k.h" + +static void otx2_nix_rq_op_stats(struct queue_stats *stats, + struct otx2_nic *pfvf, int qidx) +{ + u64 incr = (u64)qidx << 32; + u64 *ptr; + + ptr = (u64 *)otx2_get_regaddr(pfvf, NIX_LF_RQ_OP_OCTS); + stats->bytes = otx2_atomic64_add(incr, ptr); + + ptr = (u64 *)otx2_get_regaddr(pfvf, NIX_LF_RQ_OP_PKTS); + stats->pkts = otx2_atomic64_add(incr, ptr); +} + +static void otx2_nix_sq_op_stats(struct queue_stats *stats, + struct otx2_nic *pfvf, int qidx) +{ + u64 incr = (u64)qidx << 32; + u64 *ptr; + + ptr = (u64 *)otx2_get_regaddr(pfvf, NIX_LF_SQ_OP_OCTS); + stats->bytes = otx2_atomic64_add(incr, ptr); + + ptr = (u64 *)otx2_get_regaddr(pfvf, NIX_LF_SQ_OP_PKTS); + stats->pkts = otx2_atomic64_add(incr, ptr); +} + +void otx2_update_lmac_stats(struct otx2_nic *pfvf) +{ + struct msg_req *req; + + if (!netif_running(pfvf->netdev)) + return; + + mutex_lock(&pfvf->mbox.lock); + req = otx2_mbox_alloc_msg_cgx_stats(&pfvf->mbox); + if (!req) { + mutex_unlock(&pfvf->mbox.lock); + return; + } + + otx2_sync_mbox_msg(&pfvf->mbox); + mutex_unlock(&pfvf->mbox.lock); +} + +void otx2_update_lmac_fec_stats(struct otx2_nic *pfvf) +{ + struct msg_req *req; + + if (!netif_running(pfvf->netdev)) + return; + mutex_lock(&pfvf->mbox.lock); + req = otx2_mbox_alloc_msg_cgx_fec_stats(&pfvf->mbox); + if (req) + otx2_sync_mbox_msg(&pfvf->mbox); + mutex_unlock(&pfvf->mbox.lock); +} + +int otx2_update_rq_stats(struct otx2_nic *pfvf, int qidx) +{ + struct otx2_rcv_queue *rq = &pfvf->qset.rq[qidx]; + + if (!pfvf->qset.rq) + return 0; + + otx2_nix_rq_op_stats(&rq->stats, pfvf, qidx); + return 1; +} + +int otx2_update_sq_stats(struct otx2_nic *pfvf, int qidx) +{ + struct otx2_snd_queue *sq = &pfvf->qset.sq[qidx]; + + if (!pfvf->qset.sq) + return 0; + + otx2_nix_sq_op_stats(&sq->stats, pfvf, qidx); + return 1; +} + +void otx2_get_dev_stats(struct otx2_nic *pfvf) +{ + struct otx2_dev_stats *dev_stats = &pfvf->hw.dev_stats; + + dev_stats->rx_bytes = OTX2_GET_RX_STATS(RX_OCTS); + dev_stats->rx_drops = OTX2_GET_RX_STATS(RX_DROP); + dev_stats->rx_bcast_frames = OTX2_GET_RX_STATS(RX_BCAST); + dev_stats->rx_mcast_frames = OTX2_GET_RX_STATS(RX_MCAST); + dev_stats->rx_ucast_frames = OTX2_GET_RX_STATS(RX_UCAST); + dev_stats->rx_frames = dev_stats->rx_bcast_frames + + dev_stats->rx_mcast_frames + + dev_stats->rx_ucast_frames; + + dev_stats->tx_bytes = OTX2_GET_TX_STATS(TX_OCTS); + dev_stats->tx_drops = OTX2_GET_TX_STATS(TX_DROP); + dev_stats->tx_bcast_frames = OTX2_GET_TX_STATS(TX_BCAST); + dev_stats->tx_mcast_frames = OTX2_GET_TX_STATS(TX_MCAST); + dev_stats->tx_ucast_frames = OTX2_GET_TX_STATS(TX_UCAST); + dev_stats->tx_frames = dev_stats->tx_bcast_frames + + dev_stats->tx_mcast_frames + + dev_stats->tx_ucast_frames; +} + +void otx2_get_stats64(struct net_device *netdev, + struct rtnl_link_stats64 *stats) +{ + struct otx2_nic *pfvf = netdev_priv(netdev); + struct otx2_dev_stats *dev_stats; + + otx2_get_dev_stats(pfvf); + + dev_stats = &pfvf->hw.dev_stats; + stats->rx_bytes = dev_stats->rx_bytes; + stats->rx_packets = dev_stats->rx_frames; + stats->rx_dropped = dev_stats->rx_drops; + stats->multicast = dev_stats->rx_mcast_frames; + + stats->tx_bytes = dev_stats->tx_bytes; + stats->tx_packets = dev_stats->tx_frames; + stats->tx_dropped = dev_stats->tx_drops; +} +EXPORT_SYMBOL(otx2_get_stats64); + +/* Sync MAC address with RVU AF */ +static int otx2_hw_set_mac_addr(struct otx2_nic *pfvf, u8 *mac) +{ + struct nix_set_mac_addr *req; + int err; + + mutex_lock(&pfvf->mbox.lock); + req = otx2_mbox_alloc_msg_nix_set_mac_addr(&pfvf->mbox); + if (!req) { + mutex_unlock(&pfvf->mbox.lock); + return -ENOMEM; + } + + ether_addr_copy(req->mac_addr, mac); + + err = otx2_sync_mbox_msg(&pfvf->mbox); + mutex_unlock(&pfvf->mbox.lock); + return err; +} + +static int otx2_hw_get_mac_addr(struct otx2_nic *pfvf, + struct net_device *netdev) +{ + struct nix_get_mac_addr_rsp *rsp; + struct mbox_msghdr *msghdr; + struct msg_req *req; + int err; + + mutex_lock(&pfvf->mbox.lock); + req = otx2_mbox_alloc_msg_nix_get_mac_addr(&pfvf->mbox); + if (!req) { + mutex_unlock(&pfvf->mbox.lock); + return -ENOMEM; + } + + err = otx2_sync_mbox_msg(&pfvf->mbox); + if (err) { + mutex_unlock(&pfvf->mbox.lock); + return err; + } + + msghdr = otx2_mbox_get_rsp(&pfvf->mbox.mbox, 0, &req->hdr); + if (IS_ERR(msghdr)) { + mutex_unlock(&pfvf->mbox.lock); + return PTR_ERR(msghdr); + } + rsp = (struct nix_get_mac_addr_rsp *)msghdr; + eth_hw_addr_set(netdev, rsp->mac_addr); + mutex_unlock(&pfvf->mbox.lock); + + return 0; +} + +int otx2_set_mac_address(struct net_device *netdev, void *p) +{ + struct otx2_nic *pfvf = netdev_priv(netdev); + struct sockaddr *addr = p; + + if (!is_valid_ether_addr(addr->sa_data)) + return -EADDRNOTAVAIL; + + if (!otx2_hw_set_mac_addr(pfvf, addr->sa_data)) { + eth_hw_addr_set(netdev, addr->sa_data); + /* update dmac field in vlan offload rule */ + if (netif_running(netdev) && + pfvf->flags & OTX2_FLAG_RX_VLAN_SUPPORT) + otx2_install_rxvlan_offload_flow(pfvf); + /* update dmac address in ntuple and DMAC filter list */ + if (pfvf->flags & OTX2_FLAG_DMACFLTR_SUPPORT) + otx2_dmacflt_update_pfmac_flow(pfvf); + } else { + return -EPERM; + } + + return 0; +} +EXPORT_SYMBOL(otx2_set_mac_address); + +int otx2_hw_set_mtu(struct otx2_nic *pfvf, int mtu) +{ + struct nix_frs_cfg *req; + u16 maxlen; + int err; + + maxlen = otx2_get_max_mtu(pfvf) + OTX2_ETH_HLEN + OTX2_HW_TIMESTAMP_LEN; + + mutex_lock(&pfvf->mbox.lock); + req = otx2_mbox_alloc_msg_nix_set_hw_frs(&pfvf->mbox); + if (!req) { + mutex_unlock(&pfvf->mbox.lock); + return -ENOMEM; + } + + req->maxlen = pfvf->netdev->mtu + OTX2_ETH_HLEN + OTX2_HW_TIMESTAMP_LEN; + + /* Use max receive length supported by hardware for loopback devices */ + if (is_otx2_lbkvf(pfvf->pdev)) + req->maxlen = maxlen; + + err = otx2_sync_mbox_msg(&pfvf->mbox); + mutex_unlock(&pfvf->mbox.lock); + return err; +} + +int otx2_config_pause_frm(struct otx2_nic *pfvf) +{ + struct cgx_pause_frm_cfg *req; + int err; + + if (is_otx2_lbkvf(pfvf->pdev)) + return 0; + + mutex_lock(&pfvf->mbox.lock); + req = otx2_mbox_alloc_msg_cgx_cfg_pause_frm(&pfvf->mbox); + if (!req) { + err = -ENOMEM; + goto unlock; + } + + req->rx_pause = !!(pfvf->flags & OTX2_FLAG_RX_PAUSE_ENABLED); + req->tx_pause = !!(pfvf->flags & OTX2_FLAG_TX_PAUSE_ENABLED); + req->set = 1; + + err = otx2_sync_mbox_msg(&pfvf->mbox); +unlock: + mutex_unlock(&pfvf->mbox.lock); + return err; +} +EXPORT_SYMBOL(otx2_config_pause_frm); + +int otx2_set_flowkey_cfg(struct otx2_nic *pfvf) +{ + struct otx2_rss_info *rss = &pfvf->hw.rss_info; + struct nix_rss_flowkey_cfg_rsp *rsp; + struct nix_rss_flowkey_cfg *req; + int err; + + mutex_lock(&pfvf->mbox.lock); + req = otx2_mbox_alloc_msg_nix_rss_flowkey_cfg(&pfvf->mbox); + if (!req) { + mutex_unlock(&pfvf->mbox.lock); + return -ENOMEM; + } + req->mcam_index = -1; /* Default or reserved index */ + req->flowkey_cfg = rss->flowkey_cfg; + req->group = DEFAULT_RSS_CONTEXT_GROUP; + + err = otx2_sync_mbox_msg(&pfvf->mbox); + if (err) + goto fail; + + rsp = (struct nix_rss_flowkey_cfg_rsp *) + otx2_mbox_get_rsp(&pfvf->mbox.mbox, 0, &req->hdr); + if (IS_ERR(rsp)) { + err = PTR_ERR(rsp); + goto fail; + } + + pfvf->hw.flowkey_alg_idx = rsp->alg_idx; +fail: + mutex_unlock(&pfvf->mbox.lock); + return err; +} + +int otx2_set_rss_table(struct otx2_nic *pfvf, int ctx_id) +{ + struct otx2_rss_info *rss = &pfvf->hw.rss_info; + const int index = rss->rss_size * ctx_id; + struct mbox *mbox = &pfvf->mbox; + struct otx2_rss_ctx *rss_ctx; + struct nix_aq_enq_req *aq; + int idx, err; + + mutex_lock(&mbox->lock); + rss_ctx = rss->rss_ctx[ctx_id]; + /* Get memory to put this msg */ + for (idx = 0; idx < rss->rss_size; idx++) { + aq = otx2_mbox_alloc_msg_nix_aq_enq(mbox); + if (!aq) { + /* The shared memory buffer can be full. + * Flush it and retry + */ + err = otx2_sync_mbox_msg(mbox); + if (err) { + mutex_unlock(&mbox->lock); + return err; + } + aq = otx2_mbox_alloc_msg_nix_aq_enq(mbox); + if (!aq) { + mutex_unlock(&mbox->lock); + return -ENOMEM; + } + } + + aq->rss.rq = rss_ctx->ind_tbl[idx]; + + /* Fill AQ info */ + aq->qidx = index + idx; + aq->ctype = NIX_AQ_CTYPE_RSS; + aq->op = NIX_AQ_INSTOP_INIT; + } + err = otx2_sync_mbox_msg(mbox); + mutex_unlock(&mbox->lock); + return err; +} + +void otx2_set_rss_key(struct otx2_nic *pfvf) +{ + struct otx2_rss_info *rss = &pfvf->hw.rss_info; + u64 *key = (u64 *)&rss->key[4]; + int idx; + + /* 352bit or 44byte key needs to be configured as below + * NIX_LF_RX_SECRETX0 = key<351:288> + * NIX_LF_RX_SECRETX1 = key<287:224> + * NIX_LF_RX_SECRETX2 = key<223:160> + * NIX_LF_RX_SECRETX3 = key<159:96> + * NIX_LF_RX_SECRETX4 = key<95:32> + * NIX_LF_RX_SECRETX5<63:32> = key<31:0> + */ + otx2_write64(pfvf, NIX_LF_RX_SECRETX(5), + (u64)(*((u32 *)&rss->key)) << 32); + idx = sizeof(rss->key) / sizeof(u64); + while (idx > 0) { + idx--; + otx2_write64(pfvf, NIX_LF_RX_SECRETX(idx), *key++); + } +} + +int otx2_rss_init(struct otx2_nic *pfvf) +{ + struct otx2_rss_info *rss = &pfvf->hw.rss_info; + struct otx2_rss_ctx *rss_ctx; + int idx, ret = 0; + + rss->rss_size = sizeof(*rss->rss_ctx[DEFAULT_RSS_CONTEXT_GROUP]); + + /* Init RSS key if it is not setup already */ + if (!rss->enable) + netdev_rss_key_fill(rss->key, sizeof(rss->key)); + otx2_set_rss_key(pfvf); + + if (!netif_is_rxfh_configured(pfvf->netdev)) { + /* Set RSS group 0 as default indirection table */ + rss->rss_ctx[DEFAULT_RSS_CONTEXT_GROUP] = kzalloc(rss->rss_size, + GFP_KERNEL); + if (!rss->rss_ctx[DEFAULT_RSS_CONTEXT_GROUP]) + return -ENOMEM; + + rss_ctx = rss->rss_ctx[DEFAULT_RSS_CONTEXT_GROUP]; + for (idx = 0; idx < rss->rss_size; idx++) + rss_ctx->ind_tbl[idx] = + ethtool_rxfh_indir_default(idx, + pfvf->hw.rx_queues); + } + ret = otx2_set_rss_table(pfvf, DEFAULT_RSS_CONTEXT_GROUP); + if (ret) + return ret; + + /* Flowkey or hash config to be used for generating flow tag */ + rss->flowkey_cfg = rss->enable ? rss->flowkey_cfg : + NIX_FLOW_KEY_TYPE_IPV4 | NIX_FLOW_KEY_TYPE_IPV6 | + NIX_FLOW_KEY_TYPE_TCP | NIX_FLOW_KEY_TYPE_UDP | + NIX_FLOW_KEY_TYPE_SCTP | NIX_FLOW_KEY_TYPE_VLAN | + NIX_FLOW_KEY_TYPE_IPV4_PROTO; + + ret = otx2_set_flowkey_cfg(pfvf); + if (ret) + return ret; + + rss->enable = true; + return 0; +} + +/* Setup UDP segmentation algorithm in HW */ +static void otx2_setup_udp_segmentation(struct nix_lso_format_cfg *lso, bool v4) +{ + struct nix_lso_format *field; + + field = (struct nix_lso_format *)&lso->fields[0]; + lso->field_mask = GENMASK(18, 0); + + /* IP's Length field */ + field->layer = NIX_TXLAYER_OL3; + /* In ipv4, length field is at offset 2 bytes, for ipv6 it's 4 */ + field->offset = v4 ? 2 : 4; + field->sizem1 = 1; /* i.e 2 bytes */ + field->alg = NIX_LSOALG_ADD_PAYLEN; + field++; + + /* No ID field in IPv6 header */ + if (v4) { + /* Increment IPID */ + field->layer = NIX_TXLAYER_OL3; + field->offset = 4; + field->sizem1 = 1; /* i.e 2 bytes */ + field->alg = NIX_LSOALG_ADD_SEGNUM; + field++; + } + + /* Update length in UDP header */ + field->layer = NIX_TXLAYER_OL4; + field->offset = 4; + field->sizem1 = 1; + field->alg = NIX_LSOALG_ADD_PAYLEN; +} + +/* Setup segmentation algorithms in HW and retrieve algorithm index */ +void otx2_setup_segmentation(struct otx2_nic *pfvf) +{ + struct nix_lso_format_cfg_rsp *rsp; + struct nix_lso_format_cfg *lso; + struct otx2_hw *hw = &pfvf->hw; + int err; + + mutex_lock(&pfvf->mbox.lock); + + /* UDPv4 segmentation */ + lso = otx2_mbox_alloc_msg_nix_lso_format_cfg(&pfvf->mbox); + if (!lso) + goto fail; + + /* Setup UDP/IP header fields that HW should update per segment */ + otx2_setup_udp_segmentation(lso, true); + + err = otx2_sync_mbox_msg(&pfvf->mbox); + if (err) + goto fail; + + rsp = (struct nix_lso_format_cfg_rsp *) + otx2_mbox_get_rsp(&pfvf->mbox.mbox, 0, &lso->hdr); + if (IS_ERR(rsp)) + goto fail; + + hw->lso_udpv4_idx = rsp->lso_format_idx; + + /* UDPv6 segmentation */ + lso = otx2_mbox_alloc_msg_nix_lso_format_cfg(&pfvf->mbox); + if (!lso) + goto fail; + + /* Setup UDP/IP header fields that HW should update per segment */ + otx2_setup_udp_segmentation(lso, false); + + err = otx2_sync_mbox_msg(&pfvf->mbox); + if (err) + goto fail; + + rsp = (struct nix_lso_format_cfg_rsp *) + otx2_mbox_get_rsp(&pfvf->mbox.mbox, 0, &lso->hdr); + if (IS_ERR(rsp)) + goto fail; + + hw->lso_udpv6_idx = rsp->lso_format_idx; + mutex_unlock(&pfvf->mbox.lock); + return; +fail: + mutex_unlock(&pfvf->mbox.lock); + netdev_info(pfvf->netdev, + "Failed to get LSO index for UDP GSO offload, disabling\n"); + pfvf->netdev->hw_features &= ~NETIF_F_GSO_UDP_L4; +} + +void otx2_config_irq_coalescing(struct otx2_nic *pfvf, int qidx) +{ + /* Configure CQE interrupt coalescing parameters + * + * HW triggers an irq when ECOUNT > cq_ecount_wait, hence + * set 1 less than cq_ecount_wait. And cq_time_wait is in + * usecs, convert that to 100ns count. + */ + otx2_write64(pfvf, NIX_LF_CINTX_WAIT(qidx), + ((u64)(pfvf->hw.cq_time_wait * 10) << 48) | + ((u64)pfvf->hw.cq_qcount_wait << 32) | + (pfvf->hw.cq_ecount_wait - 1)); +} + +static int __otx2_alloc_rbuf(struct otx2_nic *pfvf, struct otx2_pool *pool, + dma_addr_t *dma) +{ + u8 *buf; + + buf = napi_alloc_frag_align(pool->rbsize, OTX2_ALIGN); + if (unlikely(!buf)) + return -ENOMEM; + + *dma = dma_map_single_attrs(pfvf->dev, buf, pool->rbsize, + DMA_FROM_DEVICE, DMA_ATTR_SKIP_CPU_SYNC); + if (unlikely(dma_mapping_error(pfvf->dev, *dma))) { + page_frag_free(buf); + return -ENOMEM; + } + + return 0; +} + +int otx2_alloc_rbuf(struct otx2_nic *pfvf, struct otx2_pool *pool, + dma_addr_t *dma) +{ + int ret; + + local_bh_disable(); + ret = __otx2_alloc_rbuf(pfvf, pool, dma); + local_bh_enable(); + return ret; +} + +int otx2_alloc_buffer(struct otx2_nic *pfvf, struct otx2_cq_queue *cq, + dma_addr_t *dma) +{ + if (unlikely(__otx2_alloc_rbuf(pfvf, cq->rbpool, dma))) { + struct refill_work *work; + struct delayed_work *dwork; + + work = &pfvf->refill_wrk[cq->cq_idx]; + dwork = &work->pool_refill_work; + /* Schedule a task if no other task is running */ + if (!cq->refill_task_sched) { + cq->refill_task_sched = true; + schedule_delayed_work(dwork, + msecs_to_jiffies(100)); + } + return -ENOMEM; + } + return 0; +} + +void otx2_tx_timeout(struct net_device *netdev, unsigned int txq) +{ + struct otx2_nic *pfvf = netdev_priv(netdev); + + schedule_work(&pfvf->reset_task); +} +EXPORT_SYMBOL(otx2_tx_timeout); + +void otx2_get_mac_from_af(struct net_device *netdev) +{ + struct otx2_nic *pfvf = netdev_priv(netdev); + int err; + + err = otx2_hw_get_mac_addr(pfvf, netdev); + if (err) + dev_warn(pfvf->dev, "Failed to read mac from hardware\n"); + + /* If AF doesn't provide a valid MAC, generate a random one */ + if (!is_valid_ether_addr(netdev->dev_addr)) + eth_hw_addr_random(netdev); +} +EXPORT_SYMBOL(otx2_get_mac_from_af); + +int otx2_txschq_config(struct otx2_nic *pfvf, int lvl, int prio, bool txschq_for_pfc) +{ + u16 (*schq_list)[MAX_TXSCHQ_PER_FUNC]; + struct otx2_hw *hw = &pfvf->hw; + struct nix_txschq_config *req; + u64 schq, parent; + u64 dwrr_val; + + dwrr_val = mtu_to_dwrr_weight(pfvf, pfvf->tx_max_pktlen); + + req = otx2_mbox_alloc_msg_nix_txschq_cfg(&pfvf->mbox); + if (!req) + return -ENOMEM; + + req->lvl = lvl; + req->num_regs = 1; + + schq_list = hw->txschq_list; +#ifdef CONFIG_DCB + if (txschq_for_pfc) + schq_list = pfvf->pfc_schq_list; +#endif + + schq = schq_list[lvl][prio]; + /* Set topology e.t.c configuration */ + if (lvl == NIX_TXSCH_LVL_SMQ) { + req->reg[0] = NIX_AF_SMQX_CFG(schq); + req->regval[0] = ((u64)pfvf->tx_max_pktlen << 8) | OTX2_MIN_MTU; + req->regval[0] |= (0x20ULL << 51) | (0x80ULL << 39) | + (0x2ULL << 36); + req->num_regs++; + /* MDQ config */ + parent = schq_list[NIX_TXSCH_LVL_TL4][prio]; + req->reg[1] = NIX_AF_MDQX_PARENT(schq); + req->regval[1] = parent << 16; + req->num_regs++; + /* Set DWRR quantum */ + req->reg[2] = NIX_AF_MDQX_SCHEDULE(schq); + req->regval[2] = dwrr_val; + } else if (lvl == NIX_TXSCH_LVL_TL4) { + parent = schq_list[NIX_TXSCH_LVL_TL3][prio]; + req->reg[0] = NIX_AF_TL4X_PARENT(schq); + req->regval[0] = parent << 16; + req->num_regs++; + req->reg[1] = NIX_AF_TL4X_SCHEDULE(schq); + req->regval[1] = dwrr_val; + } else if (lvl == NIX_TXSCH_LVL_TL3) { + parent = schq_list[NIX_TXSCH_LVL_TL2][prio]; + req->reg[0] = NIX_AF_TL3X_PARENT(schq); + req->regval[0] = parent << 16; + req->num_regs++; + req->reg[1] = NIX_AF_TL3X_SCHEDULE(schq); + req->regval[1] = dwrr_val; + if (lvl == hw->txschq_link_cfg_lvl) { + req->num_regs++; + req->reg[2] = NIX_AF_TL3_TL2X_LINKX_CFG(schq, hw->tx_link); + /* Enable this queue and backpressure + * and set relative channel + */ + req->regval[2] = BIT_ULL(13) | BIT_ULL(12) | prio; + } + } else if (lvl == NIX_TXSCH_LVL_TL2) { + parent = schq_list[NIX_TXSCH_LVL_TL1][prio]; + req->reg[0] = NIX_AF_TL2X_PARENT(schq); + req->regval[0] = parent << 16; + + req->num_regs++; + req->reg[1] = NIX_AF_TL2X_SCHEDULE(schq); + req->regval[1] = TXSCH_TL1_DFLT_RR_PRIO << 24 | dwrr_val; + + if (lvl == hw->txschq_link_cfg_lvl) { + req->num_regs++; + req->reg[2] = NIX_AF_TL3_TL2X_LINKX_CFG(schq, hw->tx_link); + /* Enable this queue and backpressure + * and set relative channel + */ + req->regval[2] = BIT_ULL(13) | BIT_ULL(12) | prio; + } + } else if (lvl == NIX_TXSCH_LVL_TL1) { + /* Default config for TL1. + * For VF this is always ignored. + */ + + /* On CN10K, if RR_WEIGHT is greater than 16384, HW will + * clip it to 16384, so configuring a 24bit max value + * will work on both OTx2 and CN10K. + */ + req->reg[0] = NIX_AF_TL1X_SCHEDULE(schq); + req->regval[0] = TXSCH_TL1_DFLT_RR_QTM; + + req->num_regs++; + req->reg[1] = NIX_AF_TL1X_TOPOLOGY(schq); + req->regval[1] = (TXSCH_TL1_DFLT_RR_PRIO << 1); + + req->num_regs++; + req->reg[2] = NIX_AF_TL1X_CIR(schq); + req->regval[2] = 0; + } + + return otx2_sync_mbox_msg(&pfvf->mbox); +} +EXPORT_SYMBOL(otx2_txschq_config); + +int otx2_smq_flush(struct otx2_nic *pfvf, int smq) +{ + struct nix_txschq_config *req; + int rc; + + mutex_lock(&pfvf->mbox.lock); + + req = otx2_mbox_alloc_msg_nix_txschq_cfg(&pfvf->mbox); + if (!req) { + mutex_unlock(&pfvf->mbox.lock); + return -ENOMEM; + } + + req->lvl = NIX_TXSCH_LVL_SMQ; + req->reg[0] = NIX_AF_SMQX_CFG(smq); + req->regval[0] |= BIT_ULL(49); + req->num_regs++; + + rc = otx2_sync_mbox_msg(&pfvf->mbox); + mutex_unlock(&pfvf->mbox.lock); + return rc; +} +EXPORT_SYMBOL(otx2_smq_flush); + +int otx2_txsch_alloc(struct otx2_nic *pfvf) +{ + struct nix_txsch_alloc_req *req; + struct nix_txsch_alloc_rsp *rsp; + int lvl, schq, rc; + + /* Get memory to put this msg */ + req = otx2_mbox_alloc_msg_nix_txsch_alloc(&pfvf->mbox); + if (!req) + return -ENOMEM; + + /* Request one schq per level */ + for (lvl = 0; lvl < NIX_TXSCH_LVL_CNT; lvl++) + req->schq[lvl] = 1; + rc = otx2_sync_mbox_msg(&pfvf->mbox); + if (rc) + return rc; + + rsp = (struct nix_txsch_alloc_rsp *) + otx2_mbox_get_rsp(&pfvf->mbox.mbox, 0, &req->hdr); + if (IS_ERR(rsp)) + return PTR_ERR(rsp); + + /* Setup transmit scheduler list */ + for (lvl = 0; lvl < NIX_TXSCH_LVL_CNT; lvl++) + for (schq = 0; schq < rsp->schq[lvl]; schq++) + pfvf->hw.txschq_list[lvl][schq] = + rsp->schq_list[lvl][schq]; + + pfvf->hw.txschq_link_cfg_lvl = rsp->link_cfg_lvl; + + return 0; +} + +void otx2_txschq_free_one(struct otx2_nic *pfvf, u16 lvl, u16 schq) +{ + struct nix_txsch_free_req *free_req; + int err; + + mutex_lock(&pfvf->mbox.lock); + + free_req = otx2_mbox_alloc_msg_nix_txsch_free(&pfvf->mbox); + if (!free_req) { + mutex_unlock(&pfvf->mbox.lock); + netdev_err(pfvf->netdev, + "Failed alloc txschq free req\n"); + return; + } + + free_req->schq_lvl = lvl; + free_req->schq = schq; + + err = otx2_sync_mbox_msg(&pfvf->mbox); + if (err) { + netdev_err(pfvf->netdev, + "Failed stop txschq %d at level %d\n", schq, lvl); + } + + mutex_unlock(&pfvf->mbox.lock); +} +EXPORT_SYMBOL(otx2_txschq_free_one); + +void otx2_txschq_stop(struct otx2_nic *pfvf) +{ + int lvl, schq; + + /* free non QOS TLx nodes */ + for (lvl = 0; lvl < NIX_TXSCH_LVL_CNT; lvl++) + otx2_txschq_free_one(pfvf, lvl, + pfvf->hw.txschq_list[lvl][0]); + + /* Clear the txschq list */ + for (lvl = 0; lvl < NIX_TXSCH_LVL_CNT; lvl++) { + for (schq = 0; schq < MAX_TXSCHQ_PER_FUNC; schq++) + pfvf->hw.txschq_list[lvl][schq] = 0; + } + +} + +void otx2_sqb_flush(struct otx2_nic *pfvf) +{ + int qidx, sqe_tail, sqe_head; + struct otx2_snd_queue *sq; + u64 incr, *ptr, val; + + ptr = (u64 *)otx2_get_regaddr(pfvf, NIX_LF_SQ_OP_STATUS); + for (qidx = 0; qidx < otx2_get_total_tx_queues(pfvf); qidx++) { + sq = &pfvf->qset.sq[qidx]; + if (!sq->sqb_ptrs) + continue; + + incr = (u64)qidx << 32; + val = otx2_atomic64_add(incr, ptr); + sqe_head = (val >> 20) & 0x3F; + sqe_tail = (val >> 28) & 0x3F; + if (sqe_head != sqe_tail) + usleep_range(50, 60); + } +} + +/* RED and drop levels of CQ on packet reception. + * For CQ level is measure of emptiness ( 0x0 = full, 255 = empty). + */ +#define RQ_PASS_LVL_CQ(skid, qsize) ((((skid) + 16) * 256) / (qsize)) +#define RQ_DROP_LVL_CQ(skid, qsize) (((skid) * 256) / (qsize)) + +/* RED and drop levels of AURA for packet reception. + * For AURA level is measure of fullness (0x0 = empty, 255 = full). + * Eg: For RQ length 1K, for pass/drop level 204/230. + * RED accepts pkts if free pointers > 102 & <= 205. + * Drops pkts if free pointers < 102. + */ +#define RQ_BP_LVL_AURA (255 - ((85 * 256) / 100)) /* BP when 85% is full */ +#define RQ_PASS_LVL_AURA (255 - ((95 * 256) / 100)) /* RED when 95% is full */ +#define RQ_DROP_LVL_AURA (255 - ((99 * 256) / 100)) /* Drop when 99% is full */ + +static int otx2_rq_init(struct otx2_nic *pfvf, u16 qidx, u16 lpb_aura) +{ + struct otx2_qset *qset = &pfvf->qset; + struct nix_aq_enq_req *aq; + + /* Get memory to put this msg */ + aq = otx2_mbox_alloc_msg_nix_aq_enq(&pfvf->mbox); + if (!aq) + return -ENOMEM; + + aq->rq.cq = qidx; + aq->rq.ena = 1; + aq->rq.pb_caching = 1; + aq->rq.lpb_aura = lpb_aura; /* Use large packet buffer aura */ + aq->rq.lpb_sizem1 = (DMA_BUFFER_LEN(pfvf->rbsize) / 8) - 1; + aq->rq.xqe_imm_size = 0; /* Copying of packet to CQE not needed */ + aq->rq.flow_tagw = 32; /* Copy full 32bit flow_tag to CQE header */ + aq->rq.qint_idx = 0; + aq->rq.lpb_drop_ena = 1; /* Enable RED dropping for AURA */ + aq->rq.xqe_drop_ena = 1; /* Enable RED dropping for CQ/SSO */ + aq->rq.xqe_pass = RQ_PASS_LVL_CQ(pfvf->hw.rq_skid, qset->rqe_cnt); + aq->rq.xqe_drop = RQ_DROP_LVL_CQ(pfvf->hw.rq_skid, qset->rqe_cnt); + aq->rq.lpb_aura_pass = RQ_PASS_LVL_AURA; + aq->rq.lpb_aura_drop = RQ_DROP_LVL_AURA; + + /* Fill AQ info */ + aq->qidx = qidx; + aq->ctype = NIX_AQ_CTYPE_RQ; + aq->op = NIX_AQ_INSTOP_INIT; + + return otx2_sync_mbox_msg(&pfvf->mbox); +} + +int otx2_sq_aq_init(void *dev, u16 qidx, u16 sqb_aura) +{ + struct otx2_nic *pfvf = dev; + struct otx2_snd_queue *sq; + struct nix_aq_enq_req *aq; + + sq = &pfvf->qset.sq[qidx]; + sq->lmt_addr = (__force u64 *)(pfvf->reg_base + LMT_LF_LMTLINEX(qidx)); + /* Get memory to put this msg */ + aq = otx2_mbox_alloc_msg_nix_aq_enq(&pfvf->mbox); + if (!aq) + return -ENOMEM; + + aq->sq.cq = pfvf->hw.rx_queues + qidx; + aq->sq.max_sqe_size = NIX_MAXSQESZ_W16; /* 128 byte */ + aq->sq.cq_ena = 1; + aq->sq.ena = 1; + aq->sq.smq = otx2_get_smq_idx(pfvf, qidx); + aq->sq.smq_rr_quantum = mtu_to_dwrr_weight(pfvf, pfvf->tx_max_pktlen); + aq->sq.default_chan = pfvf->hw.tx_chan_base; + aq->sq.sqe_stype = NIX_STYPE_STF; /* Cache SQB */ + aq->sq.sqb_aura = sqb_aura; + aq->sq.sq_int_ena = NIX_SQINT_BITS; + aq->sq.qint_idx = 0; + /* Due pipelining impact minimum 2000 unused SQ CQE's + * need to maintain to avoid CQ overflow. + */ + aq->sq.cq_limit = ((SEND_CQ_SKID * 256) / (pfvf->qset.sqe_cnt)); + + /* Fill AQ info */ + aq->qidx = qidx; + aq->ctype = NIX_AQ_CTYPE_SQ; + aq->op = NIX_AQ_INSTOP_INIT; + + return otx2_sync_mbox_msg(&pfvf->mbox); +} + +int otx2_sq_init(struct otx2_nic *pfvf, u16 qidx, u16 sqb_aura) +{ + struct otx2_qset *qset = &pfvf->qset; + struct otx2_snd_queue *sq; + struct otx2_pool *pool; + int err; + + pool = &pfvf->qset.pool[sqb_aura]; + sq = &qset->sq[qidx]; + sq->sqe_size = NIX_SQESZ_W16 ? 64 : 128; + sq->sqe_cnt = qset->sqe_cnt; + + err = qmem_alloc(pfvf->dev, &sq->sqe, 1, sq->sqe_size); + if (err) + return err; + + if (qidx < pfvf->hw.tx_queues) { + err = qmem_alloc(pfvf->dev, &sq->tso_hdrs, qset->sqe_cnt, + TSO_HEADER_SIZE); + if (err) + return err; + } + + sq->sqe_base = sq->sqe->base; + sq->sg = kcalloc(qset->sqe_cnt, sizeof(struct sg_list), GFP_KERNEL); + if (!sq->sg) + return -ENOMEM; + + if (pfvf->ptp && qidx < pfvf->hw.tx_queues) { + err = qmem_alloc(pfvf->dev, &sq->timestamps, qset->sqe_cnt, + sizeof(*sq->timestamps)); + if (err) + return err; + } + + sq->head = 0; + sq->cons_head = 0; + sq->sqe_per_sqb = (pfvf->hw.sqb_size / sq->sqe_size) - 1; + sq->num_sqbs = (qset->sqe_cnt + sq->sqe_per_sqb) / sq->sqe_per_sqb; + /* Set SQE threshold to 10% of total SQEs */ + sq->sqe_thresh = ((sq->num_sqbs * sq->sqe_per_sqb) * 10) / 100; + sq->aura_id = sqb_aura; + sq->aura_fc_addr = pool->fc_addr->base; + sq->io_addr = (__force u64)otx2_get_regaddr(pfvf, NIX_LF_OP_SENDX(0)); + + sq->stats.bytes = 0; + sq->stats.pkts = 0; + + return pfvf->hw_ops->sq_aq_init(pfvf, qidx, sqb_aura); + +} + +static int otx2_cq_init(struct otx2_nic *pfvf, u16 qidx) +{ + struct otx2_qset *qset = &pfvf->qset; + int err, pool_id, non_xdp_queues; + struct nix_aq_enq_req *aq; + struct otx2_cq_queue *cq; + + cq = &qset->cq[qidx]; + cq->cq_idx = qidx; + non_xdp_queues = pfvf->hw.rx_queues + pfvf->hw.tx_queues; + if (qidx < pfvf->hw.rx_queues) { + cq->cq_type = CQ_RX; + cq->cint_idx = qidx; + cq->cqe_cnt = qset->rqe_cnt; + if (pfvf->xdp_prog) + xdp_rxq_info_reg(&cq->xdp_rxq, pfvf->netdev, qidx, 0); + } else if (qidx < non_xdp_queues) { + cq->cq_type = CQ_TX; + cq->cint_idx = qidx - pfvf->hw.rx_queues; + cq->cqe_cnt = qset->sqe_cnt; + } else { + if (pfvf->hw.xdp_queues && + qidx < non_xdp_queues + pfvf->hw.xdp_queues) { + cq->cq_type = CQ_XDP; + cq->cint_idx = qidx - non_xdp_queues; + cq->cqe_cnt = qset->sqe_cnt; + } else { + cq->cq_type = CQ_QOS; + cq->cint_idx = qidx - non_xdp_queues - + pfvf->hw.xdp_queues; + cq->cqe_cnt = qset->sqe_cnt; + } + } + cq->cqe_size = pfvf->qset.xqe_size; + + /* Allocate memory for CQEs */ + err = qmem_alloc(pfvf->dev, &cq->cqe, cq->cqe_cnt, cq->cqe_size); + if (err) + return err; + + /* Save CQE CPU base for faster reference */ + cq->cqe_base = cq->cqe->base; + /* In case where all RQs auras point to single pool, + * all CQs receive buffer pool also point to same pool. + */ + pool_id = ((cq->cq_type == CQ_RX) && + (pfvf->hw.rqpool_cnt != pfvf->hw.rx_queues)) ? 0 : qidx; + cq->rbpool = &qset->pool[pool_id]; + cq->refill_task_sched = false; + + /* Get memory to put this msg */ + aq = otx2_mbox_alloc_msg_nix_aq_enq(&pfvf->mbox); + if (!aq) + return -ENOMEM; + + aq->cq.ena = 1; + aq->cq.qsize = Q_SIZE(cq->cqe_cnt, 4); + aq->cq.caching = 1; + aq->cq.base = cq->cqe->iova; + aq->cq.cint_idx = cq->cint_idx; + aq->cq.cq_err_int_ena = NIX_CQERRINT_BITS; + aq->cq.qint_idx = 0; + aq->cq.avg_level = 255; + + if (qidx < pfvf->hw.rx_queues) { + aq->cq.drop = RQ_DROP_LVL_CQ(pfvf->hw.rq_skid, cq->cqe_cnt); + aq->cq.drop_ena = 1; + + if (!is_otx2_lbkvf(pfvf->pdev)) { + /* Enable receive CQ backpressure */ + aq->cq.bp_ena = 1; +#ifdef CONFIG_DCB + aq->cq.bpid = pfvf->bpid[pfvf->queue_to_pfc_map[qidx]]; +#else + aq->cq.bpid = pfvf->bpid[0]; +#endif + + /* Set backpressure level is same as cq pass level */ + aq->cq.bp = RQ_PASS_LVL_CQ(pfvf->hw.rq_skid, qset->rqe_cnt); + } + } + + /* Fill AQ info */ + aq->qidx = qidx; + aq->ctype = NIX_AQ_CTYPE_CQ; + aq->op = NIX_AQ_INSTOP_INIT; + + return otx2_sync_mbox_msg(&pfvf->mbox); +} + +static void otx2_pool_refill_task(struct work_struct *work) +{ + struct otx2_cq_queue *cq; + struct otx2_pool *rbpool; + struct refill_work *wrk; + int qidx, free_ptrs = 0; + struct otx2_nic *pfvf; + dma_addr_t bufptr; + + wrk = container_of(work, struct refill_work, pool_refill_work.work); + pfvf = wrk->pf; + qidx = wrk - pfvf->refill_wrk; + cq = &pfvf->qset.cq[qidx]; + rbpool = cq->rbpool; + free_ptrs = cq->pool_ptrs; + + while (cq->pool_ptrs) { + if (otx2_alloc_rbuf(pfvf, rbpool, &bufptr)) { + /* Schedule a WQ if we fails to free atleast half of the + * pointers else enable napi for this RQ. + */ + if (!((free_ptrs - cq->pool_ptrs) > free_ptrs / 2)) { + struct delayed_work *dwork; + + dwork = &wrk->pool_refill_work; + schedule_delayed_work(dwork, + msecs_to_jiffies(100)); + } else { + cq->refill_task_sched = false; + } + return; + } + pfvf->hw_ops->aura_freeptr(pfvf, qidx, bufptr + OTX2_HEAD_ROOM); + cq->pool_ptrs--; + } + cq->refill_task_sched = false; +} + +int otx2_config_nix_queues(struct otx2_nic *pfvf) +{ + int qidx, err; + + /* Initialize RX queues */ + for (qidx = 0; qidx < pfvf->hw.rx_queues; qidx++) { + u16 lpb_aura = otx2_get_pool_idx(pfvf, AURA_NIX_RQ, qidx); + + err = otx2_rq_init(pfvf, qidx, lpb_aura); + if (err) + return err; + } + + /* Initialize TX queues */ + for (qidx = 0; qidx < pfvf->hw.non_qos_queues; qidx++) { + u16 sqb_aura = otx2_get_pool_idx(pfvf, AURA_NIX_SQ, qidx); + + err = otx2_sq_init(pfvf, qidx, sqb_aura); + if (err) + return err; + } + + /* Initialize completion queues */ + for (qidx = 0; qidx < pfvf->qset.cq_cnt; qidx++) { + err = otx2_cq_init(pfvf, qidx); + if (err) + return err; + } + + pfvf->cq_op_addr = (__force u64 *)otx2_get_regaddr(pfvf, + NIX_LF_CQ_OP_STATUS); + + /* Initialize work queue for receive buffer refill */ + pfvf->refill_wrk = devm_kcalloc(pfvf->dev, pfvf->qset.cq_cnt, + sizeof(struct refill_work), GFP_KERNEL); + if (!pfvf->refill_wrk) + return -ENOMEM; + + for (qidx = 0; qidx < pfvf->qset.cq_cnt; qidx++) { + pfvf->refill_wrk[qidx].pf = pfvf; + INIT_DELAYED_WORK(&pfvf->refill_wrk[qidx].pool_refill_work, + otx2_pool_refill_task); + } + return 0; +} + +int otx2_config_nix(struct otx2_nic *pfvf) +{ + struct nix_lf_alloc_req *nixlf; + struct nix_lf_alloc_rsp *rsp; + int err; + + pfvf->qset.xqe_size = pfvf->hw.xqe_size; + + /* Get memory to put this msg */ + nixlf = otx2_mbox_alloc_msg_nix_lf_alloc(&pfvf->mbox); + if (!nixlf) + return -ENOMEM; + + /* Set RQ/SQ/CQ counts */ + nixlf->rq_cnt = pfvf->hw.rx_queues; + nixlf->sq_cnt = otx2_get_total_tx_queues(pfvf); + nixlf->cq_cnt = pfvf->qset.cq_cnt; + nixlf->rss_sz = MAX_RSS_INDIR_TBL_SIZE; + nixlf->rss_grps = MAX_RSS_GROUPS; + nixlf->xqe_sz = pfvf->hw.xqe_size == 128 ? NIX_XQESZ_W16 : NIX_XQESZ_W64; + /* We don't know absolute NPA LF idx attached. + * AF will replace 'RVU_DEFAULT_PF_FUNC' with + * NPA LF attached to this RVU PF/VF. + */ + nixlf->npa_func = RVU_DEFAULT_PF_FUNC; + /* Disable alignment pad, enable L2 length check, + * enable L4 TCP/UDP checksum verification. + */ + nixlf->rx_cfg = BIT_ULL(33) | BIT_ULL(35) | BIT_ULL(37); + + err = otx2_sync_mbox_msg(&pfvf->mbox); + if (err) + return err; + + rsp = (struct nix_lf_alloc_rsp *)otx2_mbox_get_rsp(&pfvf->mbox.mbox, 0, + &nixlf->hdr); + if (IS_ERR(rsp)) + return PTR_ERR(rsp); + + if (rsp->qints < 1) + return -ENXIO; + + return rsp->hdr.rc; +} + +void otx2_sq_free_sqbs(struct otx2_nic *pfvf) +{ + struct otx2_qset *qset = &pfvf->qset; + struct otx2_hw *hw = &pfvf->hw; + struct otx2_snd_queue *sq; + int sqb, qidx; + u64 iova, pa; + + for (qidx = 0; qidx < otx2_get_total_tx_queues(pfvf); qidx++) { + sq = &qset->sq[qidx]; + if (!sq->sqb_ptrs) + continue; + for (sqb = 0; sqb < sq->sqb_count; sqb++) { + if (!sq->sqb_ptrs[sqb]) + continue; + iova = sq->sqb_ptrs[sqb]; + pa = otx2_iova_to_phys(pfvf->iommu_domain, iova); + dma_unmap_page_attrs(pfvf->dev, iova, hw->sqb_size, + DMA_FROM_DEVICE, + DMA_ATTR_SKIP_CPU_SYNC); + put_page(virt_to_page(phys_to_virt(pa))); + } + sq->sqb_count = 0; + } +} + +void otx2_free_aura_ptr(struct otx2_nic *pfvf, int type) +{ + int pool_id, pool_start = 0, pool_end = 0, size = 0; + u64 iova, pa; + + if (type == AURA_NIX_SQ) { + pool_start = otx2_get_pool_idx(pfvf, type, 0); + pool_end = pool_start + pfvf->hw.sqpool_cnt; + size = pfvf->hw.sqb_size; + } + if (type == AURA_NIX_RQ) { + pool_start = otx2_get_pool_idx(pfvf, type, 0); + pool_end = pfvf->hw.rqpool_cnt; + size = pfvf->rbsize; + } + + /* Free SQB and RQB pointers from the aura pool */ + for (pool_id = pool_start; pool_id < pool_end; pool_id++) { + iova = otx2_aura_allocptr(pfvf, pool_id); + while (iova) { + if (type == AURA_NIX_RQ) + iova -= OTX2_HEAD_ROOM; + + pa = otx2_iova_to_phys(pfvf->iommu_domain, iova); + dma_unmap_page_attrs(pfvf->dev, iova, size, + DMA_FROM_DEVICE, + DMA_ATTR_SKIP_CPU_SYNC); + put_page(virt_to_page(phys_to_virt(pa))); + iova = otx2_aura_allocptr(pfvf, pool_id); + } + } +} + +void otx2_aura_pool_free(struct otx2_nic *pfvf) +{ + struct otx2_pool *pool; + int pool_id; + + if (!pfvf->qset.pool) + return; + + for (pool_id = 0; pool_id < pfvf->hw.pool_cnt; pool_id++) { + pool = &pfvf->qset.pool[pool_id]; + qmem_free(pfvf->dev, pool->stack); + qmem_free(pfvf->dev, pool->fc_addr); + } + devm_kfree(pfvf->dev, pfvf->qset.pool); + pfvf->qset.pool = NULL; +} + +int otx2_aura_init(struct otx2_nic *pfvf, int aura_id, + int pool_id, int numptrs) +{ + struct npa_aq_enq_req *aq; + struct otx2_pool *pool; + int err; + + pool = &pfvf->qset.pool[pool_id]; + + /* Allocate memory for HW to update Aura count. + * Alloc one cache line, so that it fits all FC_STYPE modes. + */ + if (!pool->fc_addr) { + err = qmem_alloc(pfvf->dev, &pool->fc_addr, 1, OTX2_ALIGN); + if (err) + return err; + } + + /* Initialize this aura's context via AF */ + aq = otx2_mbox_alloc_msg_npa_aq_enq(&pfvf->mbox); + if (!aq) { + /* Shared mbox memory buffer is full, flush it and retry */ + err = otx2_sync_mbox_msg(&pfvf->mbox); + if (err) + return err; + aq = otx2_mbox_alloc_msg_npa_aq_enq(&pfvf->mbox); + if (!aq) + return -ENOMEM; + } + + aq->aura_id = aura_id; + /* Will be filled by AF with correct pool context address */ + aq->aura.pool_addr = pool_id; + aq->aura.pool_caching = 1; + aq->aura.shift = ilog2(numptrs) - 8; + aq->aura.count = numptrs; + aq->aura.limit = numptrs; + aq->aura.avg_level = 255; + aq->aura.ena = 1; + aq->aura.fc_ena = 1; + aq->aura.fc_addr = pool->fc_addr->iova; + aq->aura.fc_hyst_bits = 0; /* Store count on all updates */ + + /* Enable backpressure for RQ aura */ + if (aura_id < pfvf->hw.rqpool_cnt && !is_otx2_lbkvf(pfvf->pdev)) { + aq->aura.bp_ena = 0; + /* If NIX1 LF is attached then specify NIX1_RX. + * + * Below NPA_AURA_S[BP_ENA] is set according to the + * NPA_BPINTF_E enumeration given as: + * 0x0 + a*0x1 where 'a' is 0 for NIX0_RX and 1 for NIX1_RX so + * NIX0_RX is 0x0 + 0*0x1 = 0 + * NIX1_RX is 0x0 + 1*0x1 = 1 + * But in HRM it is given that + * "NPA_AURA_S[BP_ENA](w1[33:32]) - Enable aura backpressure to + * NIX-RX based on [BP] level. One bit per NIX-RX; index + * enumerated by NPA_BPINTF_E." + */ + if (pfvf->nix_blkaddr == BLKADDR_NIX1) + aq->aura.bp_ena = 1; +#ifdef CONFIG_DCB + aq->aura.nix0_bpid = pfvf->bpid[pfvf->queue_to_pfc_map[aura_id]]; +#else + aq->aura.nix0_bpid = pfvf->bpid[0]; +#endif + + /* Set backpressure level for RQ's Aura */ + aq->aura.bp = RQ_BP_LVL_AURA; + } + + /* Fill AQ info */ + aq->ctype = NPA_AQ_CTYPE_AURA; + aq->op = NPA_AQ_INSTOP_INIT; + + return 0; +} + +int otx2_pool_init(struct otx2_nic *pfvf, u16 pool_id, + int stack_pages, int numptrs, int buf_size) +{ + struct npa_aq_enq_req *aq; + struct otx2_pool *pool; + int err; + + pool = &pfvf->qset.pool[pool_id]; + /* Alloc memory for stack which is used to store buffer pointers */ + err = qmem_alloc(pfvf->dev, &pool->stack, + stack_pages, pfvf->hw.stack_pg_bytes); + if (err) + return err; + + pool->rbsize = buf_size; + + /* Initialize this pool's context via AF */ + aq = otx2_mbox_alloc_msg_npa_aq_enq(&pfvf->mbox); + if (!aq) { + /* Shared mbox memory buffer is full, flush it and retry */ + err = otx2_sync_mbox_msg(&pfvf->mbox); + if (err) { + qmem_free(pfvf->dev, pool->stack); + return err; + } + aq = otx2_mbox_alloc_msg_npa_aq_enq(&pfvf->mbox); + if (!aq) { + qmem_free(pfvf->dev, pool->stack); + return -ENOMEM; + } + } + + aq->aura_id = pool_id; + aq->pool.stack_base = pool->stack->iova; + aq->pool.stack_caching = 1; + aq->pool.ena = 1; + aq->pool.buf_size = buf_size / 128; + aq->pool.stack_max_pages = stack_pages; + aq->pool.shift = ilog2(numptrs) - 8; + aq->pool.ptr_start = 0; + aq->pool.ptr_end = ~0ULL; + + /* Fill AQ info */ + aq->ctype = NPA_AQ_CTYPE_POOL; + aq->op = NPA_AQ_INSTOP_INIT; + + return 0; +} + +int otx2_sq_aura_pool_init(struct otx2_nic *pfvf) +{ + int qidx, pool_id, stack_pages, num_sqbs; + struct otx2_qset *qset = &pfvf->qset; + struct otx2_hw *hw = &pfvf->hw; + struct otx2_snd_queue *sq; + struct otx2_pool *pool; + dma_addr_t bufptr; + int err, ptr; + + /* Calculate number of SQBs needed. + * + * For a 128byte SQE, and 4K size SQB, 31 SQEs will fit in one SQB. + * Last SQE is used for pointing to next SQB. + */ + num_sqbs = (hw->sqb_size / 128) - 1; + num_sqbs = (qset->sqe_cnt + num_sqbs) / num_sqbs; + + /* Get no of stack pages needed */ + stack_pages = + (num_sqbs + hw->stack_pg_ptrs - 1) / hw->stack_pg_ptrs; + + for (qidx = 0; qidx < hw->non_qos_queues; qidx++) { + pool_id = otx2_get_pool_idx(pfvf, AURA_NIX_SQ, qidx); + /* Initialize aura context */ + err = otx2_aura_init(pfvf, pool_id, pool_id, num_sqbs); + if (err) + goto fail; + + /* Initialize pool context */ + err = otx2_pool_init(pfvf, pool_id, stack_pages, + num_sqbs, hw->sqb_size); + if (err) + goto fail; + } + + /* Flush accumulated messages */ + err = otx2_sync_mbox_msg(&pfvf->mbox); + if (err) + goto fail; + + /* Allocate pointers and free them to aura/pool */ + for (qidx = 0; qidx < hw->non_qos_queues; qidx++) { + pool_id = otx2_get_pool_idx(pfvf, AURA_NIX_SQ, qidx); + pool = &pfvf->qset.pool[pool_id]; + + sq = &qset->sq[qidx]; + sq->sqb_count = 0; + sq->sqb_ptrs = kcalloc(num_sqbs, sizeof(*sq->sqb_ptrs), GFP_KERNEL); + if (!sq->sqb_ptrs) { + err = -ENOMEM; + goto err_mem; + } + + for (ptr = 0; ptr < num_sqbs; ptr++) { + err = otx2_alloc_rbuf(pfvf, pool, &bufptr); + if (err) + goto err_mem; + pfvf->hw_ops->aura_freeptr(pfvf, pool_id, bufptr); + sq->sqb_ptrs[sq->sqb_count++] = (u64)bufptr; + } + } + +err_mem: + return err ? -ENOMEM : 0; + +fail: + otx2_mbox_reset(&pfvf->mbox.mbox, 0); + otx2_aura_pool_free(pfvf); + return err; +} + +int otx2_rq_aura_pool_init(struct otx2_nic *pfvf) +{ + struct otx2_hw *hw = &pfvf->hw; + int stack_pages, pool_id, rq; + struct otx2_pool *pool; + int err, ptr, num_ptrs; + dma_addr_t bufptr; + + num_ptrs = pfvf->qset.rqe_cnt; + + stack_pages = + (num_ptrs + hw->stack_pg_ptrs - 1) / hw->stack_pg_ptrs; + + for (rq = 0; rq < hw->rx_queues; rq++) { + pool_id = otx2_get_pool_idx(pfvf, AURA_NIX_RQ, rq); + /* Initialize aura context */ + err = otx2_aura_init(pfvf, pool_id, pool_id, num_ptrs); + if (err) + goto fail; + } + for (pool_id = 0; pool_id < hw->rqpool_cnt; pool_id++) { + err = otx2_pool_init(pfvf, pool_id, stack_pages, + num_ptrs, pfvf->rbsize); + if (err) + goto fail; + } + + /* Flush accumulated messages */ + err = otx2_sync_mbox_msg(&pfvf->mbox); + if (err) + goto fail; + + /* Allocate pointers and free them to aura/pool */ + for (pool_id = 0; pool_id < hw->rqpool_cnt; pool_id++) { + pool = &pfvf->qset.pool[pool_id]; + for (ptr = 0; ptr < num_ptrs; ptr++) { + err = otx2_alloc_rbuf(pfvf, pool, &bufptr); + if (err) + return -ENOMEM; + pfvf->hw_ops->aura_freeptr(pfvf, pool_id, + bufptr + OTX2_HEAD_ROOM); + } + } + return 0; +fail: + otx2_mbox_reset(&pfvf->mbox.mbox, 0); + otx2_aura_pool_free(pfvf); + return err; +} + +int otx2_config_npa(struct otx2_nic *pfvf) +{ + struct otx2_qset *qset = &pfvf->qset; + struct npa_lf_alloc_req *npalf; + struct otx2_hw *hw = &pfvf->hw; + int aura_cnt; + + /* Pool - Stack of free buffer pointers + * Aura - Alloc/frees pointers from/to pool for NIX DMA. + */ + + if (!hw->pool_cnt) + return -EINVAL; + + qset->pool = devm_kcalloc(pfvf->dev, hw->pool_cnt, + sizeof(struct otx2_pool), GFP_KERNEL); + if (!qset->pool) + return -ENOMEM; + + /* Get memory to put this msg */ + npalf = otx2_mbox_alloc_msg_npa_lf_alloc(&pfvf->mbox); + if (!npalf) + return -ENOMEM; + + /* Set aura and pool counts */ + npalf->nr_pools = hw->pool_cnt; + aura_cnt = ilog2(roundup_pow_of_two(hw->pool_cnt)); + npalf->aura_sz = (aura_cnt >= ilog2(128)) ? (aura_cnt - 6) : 1; + + return otx2_sync_mbox_msg(&pfvf->mbox); +} + +int otx2_detach_resources(struct mbox *mbox) +{ + struct rsrc_detach *detach; + + mutex_lock(&mbox->lock); + detach = otx2_mbox_alloc_msg_detach_resources(mbox); + if (!detach) { + mutex_unlock(&mbox->lock); + return -ENOMEM; + } + + /* detach all */ + detach->partial = false; + + /* Send detach request to AF */ + otx2_mbox_msg_send(&mbox->mbox, 0); + mutex_unlock(&mbox->lock); + return 0; +} +EXPORT_SYMBOL(otx2_detach_resources); + +int otx2_attach_npa_nix(struct otx2_nic *pfvf) +{ + struct rsrc_attach *attach; + struct msg_req *msix; + int err; + + mutex_lock(&pfvf->mbox.lock); + /* Get memory to put this msg */ + attach = otx2_mbox_alloc_msg_attach_resources(&pfvf->mbox); + if (!attach) { + mutex_unlock(&pfvf->mbox.lock); + return -ENOMEM; + } + + attach->npalf = true; + attach->nixlf = true; + + /* Send attach request to AF */ + err = otx2_sync_mbox_msg(&pfvf->mbox); + if (err) { + mutex_unlock(&pfvf->mbox.lock); + return err; + } + + pfvf->nix_blkaddr = BLKADDR_NIX0; + + /* If the platform has two NIX blocks then LF may be + * allocated from NIX1. + */ + if (otx2_read64(pfvf, RVU_PF_BLOCK_ADDRX_DISC(BLKADDR_NIX1)) & 0x1FFULL) + pfvf->nix_blkaddr = BLKADDR_NIX1; + + /* Get NPA and NIX MSIX vector offsets */ + msix = otx2_mbox_alloc_msg_msix_offset(&pfvf->mbox); + if (!msix) { + mutex_unlock(&pfvf->mbox.lock); + return -ENOMEM; + } + + err = otx2_sync_mbox_msg(&pfvf->mbox); + if (err) { + mutex_unlock(&pfvf->mbox.lock); + return err; + } + mutex_unlock(&pfvf->mbox.lock); + + if (pfvf->hw.npa_msixoff == MSIX_VECTOR_INVALID || + pfvf->hw.nix_msixoff == MSIX_VECTOR_INVALID) { + dev_err(pfvf->dev, + "RVUPF: Invalid MSIX vector offset for NPA/NIX\n"); + return -EINVAL; + } + + return 0; +} +EXPORT_SYMBOL(otx2_attach_npa_nix); + +void otx2_ctx_disable(struct mbox *mbox, int type, bool npa) +{ + struct hwctx_disable_req *req; + + mutex_lock(&mbox->lock); + /* Request AQ to disable this context */ + if (npa) + req = otx2_mbox_alloc_msg_npa_hwctx_disable(mbox); + else + req = otx2_mbox_alloc_msg_nix_hwctx_disable(mbox); + + if (!req) { + mutex_unlock(&mbox->lock); + return; + } + + req->ctype = type; + + if (otx2_sync_mbox_msg(mbox)) + dev_err(mbox->pfvf->dev, "%s failed to disable context\n", + __func__); + + mutex_unlock(&mbox->lock); +} + +int otx2_nix_config_bp(struct otx2_nic *pfvf, bool enable) +{ + struct nix_bp_cfg_req *req; + + if (enable) + req = otx2_mbox_alloc_msg_nix_bp_enable(&pfvf->mbox); + else + req = otx2_mbox_alloc_msg_nix_bp_disable(&pfvf->mbox); + + if (!req) + return -ENOMEM; + + req->chan_base = 0; +#ifdef CONFIG_DCB + req->chan_cnt = pfvf->pfc_en ? IEEE_8021QAZ_MAX_TCS : 1; + req->bpid_per_chan = pfvf->pfc_en ? 1 : 0; +#else + req->chan_cnt = 1; + req->bpid_per_chan = 0; +#endif + + + return otx2_sync_mbox_msg(&pfvf->mbox); +} +EXPORT_SYMBOL(otx2_nix_config_bp); + +/* Mbox message handlers */ +void mbox_handler_cgx_stats(struct otx2_nic *pfvf, + struct cgx_stats_rsp *rsp) +{ + int id; + + for (id = 0; id < CGX_RX_STATS_COUNT; id++) + pfvf->hw.cgx_rx_stats[id] = rsp->rx_stats[id]; + for (id = 0; id < CGX_TX_STATS_COUNT; id++) + pfvf->hw.cgx_tx_stats[id] = rsp->tx_stats[id]; +} + +void mbox_handler_cgx_fec_stats(struct otx2_nic *pfvf, + struct cgx_fec_stats_rsp *rsp) +{ + pfvf->hw.cgx_fec_corr_blks += rsp->fec_corr_blks; + pfvf->hw.cgx_fec_uncorr_blks += rsp->fec_uncorr_blks; +} + +void mbox_handler_npa_lf_alloc(struct otx2_nic *pfvf, + struct npa_lf_alloc_rsp *rsp) +{ + pfvf->hw.stack_pg_ptrs = rsp->stack_pg_ptrs; + pfvf->hw.stack_pg_bytes = rsp->stack_pg_bytes; +} +EXPORT_SYMBOL(mbox_handler_npa_lf_alloc); + +void mbox_handler_nix_lf_alloc(struct otx2_nic *pfvf, + struct nix_lf_alloc_rsp *rsp) +{ + pfvf->hw.sqb_size = rsp->sqb_size; + pfvf->hw.rx_chan_base = rsp->rx_chan_base; + pfvf->hw.tx_chan_base = rsp->tx_chan_base; + pfvf->hw.lso_tsov4_idx = rsp->lso_tsov4_idx; + pfvf->hw.lso_tsov6_idx = rsp->lso_tsov6_idx; + pfvf->hw.cgx_links = rsp->cgx_links; + pfvf->hw.lbk_links = rsp->lbk_links; + pfvf->hw.tx_link = rsp->tx_link; +} +EXPORT_SYMBOL(mbox_handler_nix_lf_alloc); + +void mbox_handler_msix_offset(struct otx2_nic *pfvf, + struct msix_offset_rsp *rsp) +{ + pfvf->hw.npa_msixoff = rsp->npa_msixoff; + pfvf->hw.nix_msixoff = rsp->nix_msixoff; +} +EXPORT_SYMBOL(mbox_handler_msix_offset); + +void mbox_handler_nix_bp_enable(struct otx2_nic *pfvf, + struct nix_bp_cfg_rsp *rsp) +{ + int chan, chan_id; + + for (chan = 0; chan < rsp->chan_cnt; chan++) { + chan_id = ((rsp->chan_bpid[chan] >> 10) & 0x7F); + pfvf->bpid[chan_id] = rsp->chan_bpid[chan] & 0x3FF; + } +} +EXPORT_SYMBOL(mbox_handler_nix_bp_enable); + +void otx2_free_cints(struct otx2_nic *pfvf, int n) +{ + struct otx2_qset *qset = &pfvf->qset; + struct otx2_hw *hw = &pfvf->hw; + int irq, qidx; + + for (qidx = 0, irq = hw->nix_msixoff + NIX_LF_CINT_VEC_START; + qidx < n; + qidx++, irq++) { + int vector = pci_irq_vector(pfvf->pdev, irq); + + irq_set_affinity_hint(vector, NULL); + free_cpumask_var(hw->affinity_mask[irq]); + free_irq(vector, &qset->napi[qidx]); + } +} + +void otx2_set_cints_affinity(struct otx2_nic *pfvf) +{ + struct otx2_hw *hw = &pfvf->hw; + int vec, cpu, irq, cint; + + vec = hw->nix_msixoff + NIX_LF_CINT_VEC_START; + cpu = cpumask_first(cpu_online_mask); + + /* CQ interrupts */ + for (cint = 0; cint < pfvf->hw.cint_cnt; cint++, vec++) { + if (!alloc_cpumask_var(&hw->affinity_mask[vec], GFP_KERNEL)) + return; + + cpumask_set_cpu(cpu, hw->affinity_mask[vec]); + + irq = pci_irq_vector(pfvf->pdev, vec); + irq_set_affinity_hint(irq, hw->affinity_mask[vec]); + + cpu = cpumask_next(cpu, cpu_online_mask); + if (unlikely(cpu >= nr_cpu_ids)) + cpu = 0; + } +} + +u16 otx2_get_max_mtu(struct otx2_nic *pfvf) +{ + struct nix_hw_info *rsp; + struct msg_req *req; + u16 max_mtu; + int rc; + + mutex_lock(&pfvf->mbox.lock); + + req = otx2_mbox_alloc_msg_nix_get_hw_info(&pfvf->mbox); + if (!req) { + rc = -ENOMEM; + goto out; + } + + rc = otx2_sync_mbox_msg(&pfvf->mbox); + if (!rc) { + rsp = (struct nix_hw_info *) + otx2_mbox_get_rsp(&pfvf->mbox.mbox, 0, &req->hdr); + + /* HW counts VLAN insertion bytes (8 for double tag) + * irrespective of whether SQE is requesting to insert VLAN + * in the packet or not. Hence these 8 bytes have to be + * discounted from max packet size otherwise HW will throw + * SMQ errors + */ + max_mtu = rsp->max_mtu - 8 - OTX2_ETH_HLEN; + + /* Also save DWRR MTU, needed for DWRR weight calculation */ + pfvf->hw.dwrr_mtu = rsp->rpm_dwrr_mtu; + if (!pfvf->hw.dwrr_mtu) + pfvf->hw.dwrr_mtu = 1; + } + +out: + mutex_unlock(&pfvf->mbox.lock); + if (rc) { + dev_warn(pfvf->dev, + "Failed to get MTU from hardware setting default value(1500)\n"); + max_mtu = 1500; + } + return max_mtu; +} +EXPORT_SYMBOL(otx2_get_max_mtu); + +int otx2_handle_ntuple_tc_features(struct net_device *netdev, netdev_features_t features) +{ + netdev_features_t changed = features ^ netdev->features; + struct otx2_nic *pfvf = netdev_priv(netdev); + bool ntuple = !!(features & NETIF_F_NTUPLE); + bool tc = !!(features & NETIF_F_HW_TC); + + if ((changed & NETIF_F_NTUPLE) && !ntuple) + otx2_destroy_ntuple_flows(pfvf); + + if ((changed & NETIF_F_NTUPLE) && ntuple) { + if (!pfvf->flow_cfg->max_flows) { + netdev_err(netdev, + "Can't enable NTUPLE, MCAM entries not allocated\n"); + return -EINVAL; + } + } + + if ((changed & NETIF_F_HW_TC) && tc) { + if (!pfvf->flow_cfg->max_flows) { + netdev_err(netdev, + "Can't enable TC, MCAM entries not allocated\n"); + return -EINVAL; + } + } + + if ((changed & NETIF_F_HW_TC) && !tc && + pfvf->flow_cfg && pfvf->flow_cfg->nr_flows) { + netdev_err(netdev, "Can't disable TC hardware offload while flows are active\n"); + return -EBUSY; + } + + if ((changed & NETIF_F_NTUPLE) && ntuple && + (netdev->features & NETIF_F_HW_TC) && !(changed & NETIF_F_HW_TC)) { + netdev_err(netdev, + "Can't enable NTUPLE when TC is active, disable TC and retry\n"); + return -EINVAL; + } + + if ((changed & NETIF_F_HW_TC) && tc && + (netdev->features & NETIF_F_NTUPLE) && !(changed & NETIF_F_NTUPLE)) { + netdev_err(netdev, + "Can't enable TC when NTUPLE is active, disable NTUPLE and retry\n"); + return -EINVAL; + } + + return 0; +} +EXPORT_SYMBOL(otx2_handle_ntuple_tc_features); + +#define M(_name, _id, _fn_name, _req_type, _rsp_type) \ +int __weak \ +otx2_mbox_up_handler_ ## _fn_name(struct otx2_nic *pfvf, \ + struct _req_type *req, \ + struct _rsp_type *rsp) \ +{ \ + /* Nothing to do here */ \ + return 0; \ +} \ +EXPORT_SYMBOL(otx2_mbox_up_handler_ ## _fn_name); +MBOX_UP_CGX_MESSAGES +MBOX_UP_MCS_MESSAGES +#undef M diff --git a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_common.h b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_common.h new file mode 100644 index 000000000..44950c254 --- /dev/null +++ b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_common.h @@ -0,0 +1,1066 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* Marvell RVU Ethernet driver + * + * Copyright (C) 2020 Marvell. + * + */ + +#ifndef OTX2_COMMON_H +#define OTX2_COMMON_H + +#include <linux/ethtool.h> +#include <linux/pci.h> +#include <linux/iommu.h> +#include <linux/net_tstamp.h> +#include <linux/ptp_clock_kernel.h> +#include <linux/timecounter.h> +#include <linux/soc/marvell/octeontx2/asm.h> +#include <net/pkt_cls.h> +#include <net/devlink.h> +#include <linux/time64.h> +#include <linux/dim.h> +#include <uapi/linux/if_macsec.h> + +#include <mbox.h> +#include <npc.h> +#include "otx2_reg.h" +#include "otx2_txrx.h" +#include "otx2_devlink.h" +#include <rvu_trace.h> +#include "qos.h" + +/* PCI device IDs */ +#define PCI_DEVID_OCTEONTX2_RVU_PF 0xA063 +#define PCI_DEVID_OCTEONTX2_RVU_VF 0xA064 +#define PCI_DEVID_OCTEONTX2_RVU_AFVF 0xA0F8 + +#define PCI_SUBSYS_DEVID_96XX_RVU_PFVF 0xB200 +#define PCI_SUBSYS_DEVID_CN10K_B_RVU_PFVF 0xBD00 + +/* PCI BAR nos */ +#define PCI_CFG_REG_BAR_NUM 2 +#define PCI_MBOX_BAR_NUM 4 + +#define NAME_SIZE 32 + +#ifdef CONFIG_DCB +/* Max priority supported for PFC */ +#define NIX_PF_PFC_PRIO_MAX 8 +#endif + +enum arua_mapped_qtypes { + AURA_NIX_RQ, + AURA_NIX_SQ, +}; + +/* NIX LF interrupts range*/ +#define NIX_LF_QINT_VEC_START 0x00 +#define NIX_LF_CINT_VEC_START 0x40 +#define NIX_LF_GINT_VEC 0x80 +#define NIX_LF_ERR_VEC 0x81 +#define NIX_LF_POISON_VEC 0x82 + +/* Send skid of 2000 packets required for CQ size of 4K CQEs. */ +#define SEND_CQ_SKID 2000 + +#define OTX2_GET_RX_STATS(reg) \ + otx2_read64(pfvf, NIX_LF_RX_STATX(reg)) +#define OTX2_GET_TX_STATS(reg) \ + otx2_read64(pfvf, NIX_LF_TX_STATX(reg)) + +struct otx2_lmt_info { + u64 lmt_addr; + u16 lmt_id; +}; +/* RSS configuration */ +struct otx2_rss_ctx { + u8 ind_tbl[MAX_RSS_INDIR_TBL_SIZE]; +}; + +struct otx2_rss_info { + u8 enable; + u32 flowkey_cfg; + u16 rss_size; +#define RSS_HASH_KEY_SIZE 44 /* 352 bit key */ + u8 key[RSS_HASH_KEY_SIZE]; + struct otx2_rss_ctx *rss_ctx[MAX_RSS_GROUPS]; +}; + +/* NIX (or NPC) RX errors */ +enum otx2_errlvl { + NPC_ERRLVL_RE, + NPC_ERRLVL_LID_LA, + NPC_ERRLVL_LID_LB, + NPC_ERRLVL_LID_LC, + NPC_ERRLVL_LID_LD, + NPC_ERRLVL_LID_LE, + NPC_ERRLVL_LID_LF, + NPC_ERRLVL_LID_LG, + NPC_ERRLVL_LID_LH, + NPC_ERRLVL_NIX = 0x0F, +}; + +enum otx2_errcodes_re { + /* NPC_ERRLVL_RE errcodes */ + ERRCODE_FCS = 0x7, + ERRCODE_FCS_RCV = 0x8, + ERRCODE_UNDERSIZE = 0x10, + ERRCODE_OVERSIZE = 0x11, + ERRCODE_OL2_LEN_MISMATCH = 0x12, + /* NPC_ERRLVL_NIX errcodes */ + ERRCODE_OL3_LEN = 0x10, + ERRCODE_OL4_LEN = 0x11, + ERRCODE_OL4_CSUM = 0x12, + ERRCODE_IL3_LEN = 0x20, + ERRCODE_IL4_LEN = 0x21, + ERRCODE_IL4_CSUM = 0x22, +}; + +/* NIX TX stats */ +enum nix_stat_lf_tx { + TX_UCAST = 0x0, + TX_BCAST = 0x1, + TX_MCAST = 0x2, + TX_DROP = 0x3, + TX_OCTS = 0x4, + TX_STATS_ENUM_LAST, +}; + +/* NIX RX stats */ +enum nix_stat_lf_rx { + RX_OCTS = 0x0, + RX_UCAST = 0x1, + RX_BCAST = 0x2, + RX_MCAST = 0x3, + RX_DROP = 0x4, + RX_DROP_OCTS = 0x5, + RX_FCS = 0x6, + RX_ERR = 0x7, + RX_DRP_BCAST = 0x8, + RX_DRP_MCAST = 0x9, + RX_DRP_L3BCAST = 0xa, + RX_DRP_L3MCAST = 0xb, + RX_STATS_ENUM_LAST, +}; + +struct otx2_dev_stats { + u64 rx_bytes; + u64 rx_frames; + u64 rx_ucast_frames; + u64 rx_bcast_frames; + u64 rx_mcast_frames; + u64 rx_drops; + + u64 tx_bytes; + u64 tx_frames; + u64 tx_ucast_frames; + u64 tx_bcast_frames; + u64 tx_mcast_frames; + u64 tx_drops; +}; + +/* Driver counted stats */ +struct otx2_drv_stats { + atomic_t rx_fcs_errs; + atomic_t rx_oversize_errs; + atomic_t rx_undersize_errs; + atomic_t rx_csum_errs; + atomic_t rx_len_errs; + atomic_t rx_other_errs; +}; + +struct mbox { + struct otx2_mbox mbox; + struct work_struct mbox_wrk; + struct otx2_mbox mbox_up; + struct work_struct mbox_up_wrk; + struct otx2_nic *pfvf; + void *bbuf_base; /* Bounce buffer for mbox memory */ + struct mutex lock; /* serialize mailbox access */ + int num_msgs; /* mbox number of messages */ + int up_num_msgs; /* mbox_up number of messages */ +}; + +struct otx2_hw { + struct pci_dev *pdev; + struct otx2_rss_info rss_info; + u16 rx_queues; + u16 tx_queues; + u16 xdp_queues; + u16 tc_tx_queues; + u16 non_qos_queues; /* tx queues plus xdp queues */ + u16 max_queues; + u16 pool_cnt; + u16 rqpool_cnt; + u16 sqpool_cnt; + +#define OTX2_DEFAULT_RBUF_LEN 2048 + u16 rbuf_len; + u32 xqe_size; + + /* NPA */ + u32 stack_pg_ptrs; /* No of ptrs per stack page */ + u32 stack_pg_bytes; /* Size of stack page */ + u16 sqb_size; + + /* NIX */ + u8 txschq_link_cfg_lvl; + u16 txschq_list[NIX_TXSCH_LVL_CNT][MAX_TXSCHQ_PER_FUNC]; + u16 matchall_ipolicer; + u32 dwrr_mtu; + + /* HW settings, coalescing etc */ + u16 rx_chan_base; + u16 tx_chan_base; + u16 cq_qcount_wait; + u16 cq_ecount_wait; + u16 rq_skid; + u8 cq_time_wait; + + /* Segmentation */ + u8 lso_tsov4_idx; + u8 lso_tsov6_idx; + u8 lso_udpv4_idx; + u8 lso_udpv6_idx; + + /* RSS */ + u8 flowkey_alg_idx; + + /* MSI-X */ + u8 cint_cnt; /* CQ interrupt count */ + u16 npa_msixoff; /* Offset of NPA vectors */ + u16 nix_msixoff; /* Offset of NIX vectors */ + char *irq_name; + cpumask_var_t *affinity_mask; + + /* Stats */ + struct otx2_dev_stats dev_stats; + struct otx2_drv_stats drv_stats; + u64 cgx_rx_stats[CGX_RX_STATS_COUNT]; + u64 cgx_tx_stats[CGX_TX_STATS_COUNT]; + u64 cgx_fec_corr_blks; + u64 cgx_fec_uncorr_blks; + u8 cgx_links; /* No. of CGX links present in HW */ + u8 lbk_links; /* No. of LBK links present in HW */ + u8 tx_link; /* Transmit channel link number */ +#define HW_TSO 0 +#define CN10K_MBOX 1 +#define CN10K_LMTST 2 +#define CN10K_RPM 3 +#define CN10K_PTP_ONESTEP 4 +#define CN10K_HW_MACSEC 5 + unsigned long cap_flag; + +#define LMT_LINE_SIZE 128 +#define LMT_BURST_SIZE 32 /* 32 LMTST lines for burst SQE flush */ + u64 *lmt_base; + struct otx2_lmt_info __percpu *lmt_info; +}; + +enum vfperm { + OTX2_RESET_VF_PERM, + OTX2_TRUSTED_VF, +}; + +struct otx2_vf_config { + struct otx2_nic *pf; + struct delayed_work link_event_work; + bool intf_down; /* interface was either configured or not */ + u8 mac[ETH_ALEN]; + u16 vlan; + int tx_vtag_idx; + bool trusted; +}; + +struct flr_work { + struct work_struct work; + struct otx2_nic *pf; +}; + +struct refill_work { + struct delayed_work pool_refill_work; + struct otx2_nic *pf; +}; + +/* PTPv2 originTimestamp structure */ +struct ptpv2_tstamp { + __be16 seconds_msb; /* 16 bits + */ + __be32 seconds_lsb; /* 32 bits = 48 bits*/ + __be32 nanoseconds; +} __packed; + +struct otx2_ptp { + struct ptp_clock_info ptp_info; + struct ptp_clock *ptp_clock; + struct otx2_nic *nic; + + struct cyclecounter cycle_counter; + struct timecounter time_counter; + + struct delayed_work extts_work; + u64 last_extts; + u64 thresh; + + struct ptp_pin_desc extts_config; + u64 (*convert_rx_ptp_tstmp)(u64 timestamp); + u64 (*convert_tx_ptp_tstmp)(u64 timestamp); + struct delayed_work synctstamp_work; + u64 tstamp; + u32 base_ns; +}; + +#define OTX2_HW_TIMESTAMP_LEN 8 + +struct otx2_mac_table { + u8 addr[ETH_ALEN]; + u16 mcam_entry; + bool inuse; +}; + +struct otx2_flow_config { + u16 *flow_ent; + u16 *def_ent; + u16 nr_flows; +#define OTX2_DEFAULT_FLOWCOUNT 16 +#define OTX2_MAX_UNICAST_FLOWS 8 +#define OTX2_MAX_VLAN_FLOWS 1 +#define OTX2_MAX_TC_FLOWS OTX2_DEFAULT_FLOWCOUNT +#define OTX2_MCAM_COUNT (OTX2_DEFAULT_FLOWCOUNT + \ + OTX2_MAX_UNICAST_FLOWS + \ + OTX2_MAX_VLAN_FLOWS) + u16 unicast_offset; + u16 rx_vlan_offset; + u16 vf_vlan_offset; +#define OTX2_PER_VF_VLAN_FLOWS 2 /* Rx + Tx per VF */ +#define OTX2_VF_VLAN_RX_INDEX 0 +#define OTX2_VF_VLAN_TX_INDEX 1 + u32 *bmap_to_dmacindex; + unsigned long *dmacflt_bmap; + struct list_head flow_list; + u32 dmacflt_max_flows; + u16 max_flows; + struct list_head flow_list_tc; + bool ntuple; +}; + +struct dev_hw_ops { + int (*sq_aq_init)(void *dev, u16 qidx, u16 sqb_aura); + void (*sqe_flush)(void *dev, struct otx2_snd_queue *sq, + int size, int qidx); + void (*refill_pool_ptrs)(void *dev, struct otx2_cq_queue *cq); + void (*aura_freeptr)(void *dev, int aura, u64 buf); +}; + +#define CN10K_MCS_SA_PER_SC 4 + +/* Stats which need to be accumulated in software because + * of shared counters in hardware. + */ +struct cn10k_txsc_stats { + u64 InPktsUntagged; + u64 InPktsNoTag; + u64 InPktsBadTag; + u64 InPktsUnknownSCI; + u64 InPktsNoSCI; + u64 InPktsOverrun; +}; + +struct cn10k_rxsc_stats { + u64 InOctetsValidated; + u64 InOctetsDecrypted; + u64 InPktsUnchecked; + u64 InPktsDelayed; + u64 InPktsOK; + u64 InPktsInvalid; + u64 InPktsLate; + u64 InPktsNotValid; + u64 InPktsNotUsingSA; + u64 InPktsUnusedSA; +}; + +struct cn10k_mcs_txsc { + struct macsec_secy *sw_secy; + struct cn10k_txsc_stats stats; + struct list_head entry; + enum macsec_validation_type last_validate_frames; + bool last_replay_protect; + u16 hw_secy_id_tx; + u16 hw_secy_id_rx; + u16 hw_flow_id; + u16 hw_sc_id; + u16 hw_sa_id[CN10K_MCS_SA_PER_SC]; + u8 sa_bmap; + u8 sa_key[CN10K_MCS_SA_PER_SC][MACSEC_MAX_KEY_LEN]; + u8 encoding_sa; +}; + +struct cn10k_mcs_rxsc { + struct macsec_secy *sw_secy; + struct macsec_rx_sc *sw_rxsc; + struct cn10k_rxsc_stats stats; + struct list_head entry; + u16 hw_flow_id; + u16 hw_sc_id; + u16 hw_sa_id[CN10K_MCS_SA_PER_SC]; + u8 sa_bmap; + u8 sa_key[CN10K_MCS_SA_PER_SC][MACSEC_MAX_KEY_LEN]; +}; + +struct cn10k_mcs_cfg { + struct list_head txsc_list; + struct list_head rxsc_list; +}; + +struct otx2_nic { + void __iomem *reg_base; + struct net_device *netdev; + struct dev_hw_ops *hw_ops; + void *iommu_domain; + u16 tx_max_pktlen; + u16 rbsize; /* Receive buffer size */ + +#define OTX2_FLAG_RX_TSTAMP_ENABLED BIT_ULL(0) +#define OTX2_FLAG_TX_TSTAMP_ENABLED BIT_ULL(1) +#define OTX2_FLAG_INTF_DOWN BIT_ULL(2) +#define OTX2_FLAG_MCAM_ENTRIES_ALLOC BIT_ULL(3) +#define OTX2_FLAG_NTUPLE_SUPPORT BIT_ULL(4) +#define OTX2_FLAG_UCAST_FLTR_SUPPORT BIT_ULL(5) +#define OTX2_FLAG_RX_VLAN_SUPPORT BIT_ULL(6) +#define OTX2_FLAG_VF_VLAN_SUPPORT BIT_ULL(7) +#define OTX2_FLAG_PF_SHUTDOWN BIT_ULL(8) +#define OTX2_FLAG_RX_PAUSE_ENABLED BIT_ULL(9) +#define OTX2_FLAG_TX_PAUSE_ENABLED BIT_ULL(10) +#define OTX2_FLAG_TC_FLOWER_SUPPORT BIT_ULL(11) +#define OTX2_FLAG_TC_MATCHALL_EGRESS_ENABLED BIT_ULL(12) +#define OTX2_FLAG_TC_MATCHALL_INGRESS_ENABLED BIT_ULL(13) +#define OTX2_FLAG_DMACFLTR_SUPPORT BIT_ULL(14) +#define OTX2_FLAG_PTP_ONESTEP_SYNC BIT_ULL(15) +#define OTX2_FLAG_ADPTV_INT_COAL_ENABLED BIT_ULL(16) + u64 flags; + u64 *cq_op_addr; + + struct bpf_prog *xdp_prog; + struct otx2_qset qset; + struct otx2_hw hw; + struct pci_dev *pdev; + struct device *dev; + + /* Mbox */ + struct mbox mbox; + struct mbox *mbox_pfvf; + struct workqueue_struct *mbox_wq; + struct workqueue_struct *mbox_pfvf_wq; + + u8 total_vfs; + u16 pcifunc; /* RVU PF_FUNC */ + u16 bpid[NIX_MAX_BPID_CHAN]; + struct otx2_vf_config *vf_configs; + struct cgx_link_user_info linfo; + + /* NPC MCAM */ + struct otx2_flow_config *flow_cfg; + struct otx2_mac_table *mac_table; + + u64 reset_count; + struct work_struct reset_task; + struct workqueue_struct *flr_wq; + struct flr_work *flr_wrk; + struct refill_work *refill_wrk; + struct workqueue_struct *otx2_wq; + struct work_struct rx_mode_work; + + /* Ethtool stuff */ + u32 msg_enable; + + /* Block address of NIX either BLKADDR_NIX0 or BLKADDR_NIX1 */ + int nix_blkaddr; + /* LMTST Lines info */ + struct qmem *dync_lmt; + u16 tot_lmt_lines; + u16 npa_lmt_lines; + u32 nix_lmt_size; + + struct otx2_ptp *ptp; + struct hwtstamp_config tstamp; + + unsigned long rq_bmap; + + /* Devlink */ + struct otx2_devlink *dl; +#ifdef CONFIG_DCB + /* PFC */ + u8 pfc_en; + u8 *queue_to_pfc_map; + u16 pfc_schq_list[NIX_TXSCH_LVL_CNT][MAX_TXSCHQ_PER_FUNC]; + bool pfc_alloc_status[NIX_PF_PFC_PRIO_MAX]; +#endif + /* qos */ + struct otx2_qos qos; + + /* napi event count. It is needed for adaptive irq coalescing. */ + u32 napi_events; + +#if IS_ENABLED(CONFIG_MACSEC) + struct cn10k_mcs_cfg *macsec_cfg; +#endif +}; + +static inline bool is_otx2_lbkvf(struct pci_dev *pdev) +{ + return pdev->device == PCI_DEVID_OCTEONTX2_RVU_AFVF; +} + +static inline bool is_96xx_A0(struct pci_dev *pdev) +{ + return (pdev->revision == 0x00) && + (pdev->subsystem_device == PCI_SUBSYS_DEVID_96XX_RVU_PFVF); +} + +static inline bool is_96xx_B0(struct pci_dev *pdev) +{ + return (pdev->revision == 0x01) && + (pdev->subsystem_device == PCI_SUBSYS_DEVID_96XX_RVU_PFVF); +} + +/* REVID for PCIe devices. + * Bits 0..1: minor pass, bit 3..2: major pass + * bits 7..4: midr id + */ +#define PCI_REVISION_ID_96XX 0x00 +#define PCI_REVISION_ID_95XX 0x10 +#define PCI_REVISION_ID_95XXN 0x20 +#define PCI_REVISION_ID_98XX 0x30 +#define PCI_REVISION_ID_95XXMM 0x40 +#define PCI_REVISION_ID_95XXO 0xE0 + +static inline bool is_dev_otx2(struct pci_dev *pdev) +{ + u8 midr = pdev->revision & 0xF0; + + return (midr == PCI_REVISION_ID_96XX || midr == PCI_REVISION_ID_95XX || + midr == PCI_REVISION_ID_95XXN || midr == PCI_REVISION_ID_98XX || + midr == PCI_REVISION_ID_95XXMM || midr == PCI_REVISION_ID_95XXO); +} + +static inline bool is_dev_cn10kb(struct pci_dev *pdev) +{ + return pdev->subsystem_device == PCI_SUBSYS_DEVID_CN10K_B_RVU_PFVF; +} + +static inline void otx2_setup_dev_hw_settings(struct otx2_nic *pfvf) +{ + struct otx2_hw *hw = &pfvf->hw; + + pfvf->hw.cq_time_wait = CQ_TIMER_THRESH_DEFAULT; + pfvf->hw.cq_ecount_wait = CQ_CQE_THRESH_DEFAULT; + pfvf->hw.cq_qcount_wait = CQ_QCOUNT_DEFAULT; + + __set_bit(HW_TSO, &hw->cap_flag); + + if (is_96xx_A0(pfvf->pdev)) { + __clear_bit(HW_TSO, &hw->cap_flag); + + /* Time based irq coalescing is not supported */ + pfvf->hw.cq_qcount_wait = 0x0; + + /* Due to HW issue previous silicons required minimum + * 600 unused CQE to avoid CQ overflow. + */ + pfvf->hw.rq_skid = 600; + pfvf->qset.rqe_cnt = Q_COUNT(Q_SIZE_1K); + } + if (is_96xx_B0(pfvf->pdev)) + __clear_bit(HW_TSO, &hw->cap_flag); + + if (!is_dev_otx2(pfvf->pdev)) { + __set_bit(CN10K_MBOX, &hw->cap_flag); + __set_bit(CN10K_LMTST, &hw->cap_flag); + __set_bit(CN10K_RPM, &hw->cap_flag); + __set_bit(CN10K_PTP_ONESTEP, &hw->cap_flag); + } + + if (is_dev_cn10kb(pfvf->pdev)) + __set_bit(CN10K_HW_MACSEC, &hw->cap_flag); +} + +/* Register read/write APIs */ +static inline void __iomem *otx2_get_regaddr(struct otx2_nic *nic, u64 offset) +{ + u64 blkaddr; + + switch ((offset >> RVU_FUNC_BLKADDR_SHIFT) & RVU_FUNC_BLKADDR_MASK) { + case BLKTYPE_NIX: + blkaddr = nic->nix_blkaddr; + break; + case BLKTYPE_NPA: + blkaddr = BLKADDR_NPA; + break; + default: + blkaddr = BLKADDR_RVUM; + break; + } + + offset &= ~(RVU_FUNC_BLKADDR_MASK << RVU_FUNC_BLKADDR_SHIFT); + offset |= (blkaddr << RVU_FUNC_BLKADDR_SHIFT); + + return nic->reg_base + offset; +} + +static inline void otx2_write64(struct otx2_nic *nic, u64 offset, u64 val) +{ + void __iomem *addr = otx2_get_regaddr(nic, offset); + + writeq(val, addr); +} + +static inline u64 otx2_read64(struct otx2_nic *nic, u64 offset) +{ + void __iomem *addr = otx2_get_regaddr(nic, offset); + + return readq(addr); +} + +/* Mbox bounce buffer APIs */ +static inline int otx2_mbox_bbuf_init(struct mbox *mbox, struct pci_dev *pdev) +{ + struct otx2_mbox *otx2_mbox; + struct otx2_mbox_dev *mdev; + + mbox->bbuf_base = devm_kmalloc(&pdev->dev, MBOX_SIZE, GFP_KERNEL); + if (!mbox->bbuf_base) + return -ENOMEM; + + /* Overwrite mbox mbase to point to bounce buffer, so that PF/VF + * prepare all mbox messages in bounce buffer instead of directly + * in hw mbox memory. + */ + otx2_mbox = &mbox->mbox; + mdev = &otx2_mbox->dev[0]; + mdev->mbase = mbox->bbuf_base; + + otx2_mbox = &mbox->mbox_up; + mdev = &otx2_mbox->dev[0]; + mdev->mbase = mbox->bbuf_base; + return 0; +} + +static inline void otx2_sync_mbox_bbuf(struct otx2_mbox *mbox, int devid) +{ + u16 msgs_offset = ALIGN(sizeof(struct mbox_hdr), MBOX_MSG_ALIGN); + void *hw_mbase = mbox->hwbase + (devid * MBOX_SIZE); + struct otx2_mbox_dev *mdev = &mbox->dev[devid]; + struct mbox_hdr *hdr; + u64 msg_size; + + if (mdev->mbase == hw_mbase) + return; + + hdr = hw_mbase + mbox->rx_start; + msg_size = hdr->msg_size; + + if (msg_size > mbox->rx_size - msgs_offset) + msg_size = mbox->rx_size - msgs_offset; + + /* Copy mbox messages from mbox memory to bounce buffer */ + memcpy(mdev->mbase + mbox->rx_start, + hw_mbase + mbox->rx_start, msg_size + msgs_offset); +} + +/* With the absence of API for 128-bit IO memory access for arm64, + * implement required operations at place. + */ +#if defined(CONFIG_ARM64) +static inline void otx2_write128(u64 lo, u64 hi, void __iomem *addr) +{ + __asm__ volatile("stp %x[x0], %x[x1], [%x[p1],#0]!" + ::[x0]"r"(lo), [x1]"r"(hi), [p1]"r"(addr)); +} + +static inline u64 otx2_atomic64_add(u64 incr, u64 *ptr) +{ + u64 result; + + __asm__ volatile(".cpu generic+lse\n" + "ldadd %x[i], %x[r], [%[b]]" + : [r]"=r"(result), "+m"(*ptr) + : [i]"r"(incr), [b]"r"(ptr) + : "memory"); + return result; +} + +#else +#define otx2_write128(lo, hi, addr) writeq((hi) | (lo), addr) +#define otx2_atomic64_add(incr, ptr) ({ *ptr += incr; }) +#endif + +static inline void __cn10k_aura_freeptr(struct otx2_nic *pfvf, u64 aura, + u64 *ptrs, u64 num_ptrs) +{ + struct otx2_lmt_info *lmt_info; + u64 size = 0, count_eot = 0; + u64 tar_addr, val = 0; + + lmt_info = per_cpu_ptr(pfvf->hw.lmt_info, smp_processor_id()); + tar_addr = (__force u64)otx2_get_regaddr(pfvf, NPA_LF_AURA_BATCH_FREE0); + /* LMTID is same as AURA Id */ + val = (lmt_info->lmt_id & 0x7FF) | BIT_ULL(63); + /* Set if [127:64] of last 128bit word has a valid pointer */ + count_eot = (num_ptrs % 2) ? 0ULL : 1ULL; + /* Set AURA ID to free pointer */ + ptrs[0] = (count_eot << 32) | (aura & 0xFFFFF); + /* Target address for LMTST flush tells HW how many 128bit + * words are valid from NPA_LF_AURA_BATCH_FREE0. + * + * tar_addr[6:4] is LMTST size-1 in units of 128b. + */ + if (num_ptrs > 2) { + size = (sizeof(u64) * num_ptrs) / 16; + if (!count_eot) + size++; + tar_addr |= ((size - 1) & 0x7) << 4; + } + dma_wmb(); + memcpy((u64 *)lmt_info->lmt_addr, ptrs, sizeof(u64) * num_ptrs); + /* Perform LMTST flush */ + cn10k_lmt_flush(val, tar_addr); +} + +static inline void cn10k_aura_freeptr(void *dev, int aura, u64 buf) +{ + struct otx2_nic *pfvf = dev; + u64 ptrs[2]; + + ptrs[1] = buf; + get_cpu(); + /* Free only one buffer at time during init and teardown */ + __cn10k_aura_freeptr(pfvf, aura, ptrs, 2); + put_cpu(); +} + +/* Alloc pointer from pool/aura */ +static inline u64 otx2_aura_allocptr(struct otx2_nic *pfvf, int aura) +{ + u64 *ptr = (__force u64 *)otx2_get_regaddr(pfvf, NPA_LF_AURA_OP_ALLOCX(0)); + u64 incr = (u64)aura | BIT_ULL(63); + + return otx2_atomic64_add(incr, ptr); +} + +/* Free pointer to a pool/aura */ +static inline void otx2_aura_freeptr(void *dev, int aura, u64 buf) +{ + struct otx2_nic *pfvf = dev; + void __iomem *addr = otx2_get_regaddr(pfvf, NPA_LF_AURA_OP_FREE0); + + otx2_write128(buf, (u64)aura | BIT_ULL(63), addr); +} + +static inline int otx2_get_pool_idx(struct otx2_nic *pfvf, int type, int idx) +{ + if (type == AURA_NIX_SQ) + return pfvf->hw.rqpool_cnt + idx; + + /* AURA_NIX_RQ */ + return idx; +} + +/* Mbox APIs */ +static inline int otx2_sync_mbox_msg(struct mbox *mbox) +{ + int err; + + if (!otx2_mbox_nonempty(&mbox->mbox, 0)) + return 0; + otx2_mbox_msg_send(&mbox->mbox, 0); + err = otx2_mbox_wait_for_rsp(&mbox->mbox, 0); + if (err) + return err; + + return otx2_mbox_check_rsp_msgs(&mbox->mbox, 0); +} + +static inline int otx2_sync_mbox_up_msg(struct mbox *mbox, int devid) +{ + int err; + + if (!otx2_mbox_nonempty(&mbox->mbox_up, devid)) + return 0; + otx2_mbox_msg_send(&mbox->mbox_up, devid); + err = otx2_mbox_wait_for_rsp(&mbox->mbox_up, devid); + if (err) + return err; + + return otx2_mbox_check_rsp_msgs(&mbox->mbox_up, devid); +} + +/* Use this API to send mbox msgs in atomic context + * where sleeping is not allowed + */ +static inline int otx2_sync_mbox_msg_busy_poll(struct mbox *mbox) +{ + int err; + + if (!otx2_mbox_nonempty(&mbox->mbox, 0)) + return 0; + otx2_mbox_msg_send(&mbox->mbox, 0); + err = otx2_mbox_busy_poll_for_rsp(&mbox->mbox, 0); + if (err) + return err; + + return otx2_mbox_check_rsp_msgs(&mbox->mbox, 0); +} + +#define M(_name, _id, _fn_name, _req_type, _rsp_type) \ +static struct _req_type __maybe_unused \ +*otx2_mbox_alloc_msg_ ## _fn_name(struct mbox *mbox) \ +{ \ + struct _req_type *req; \ + \ + req = (struct _req_type *)otx2_mbox_alloc_msg_rsp( \ + &mbox->mbox, 0, sizeof(struct _req_type), \ + sizeof(struct _rsp_type)); \ + if (!req) \ + return NULL; \ + req->hdr.sig = OTX2_MBOX_REQ_SIG; \ + req->hdr.id = _id; \ + trace_otx2_msg_alloc(mbox->mbox.pdev, _id, sizeof(*req)); \ + return req; \ +} + +MBOX_MESSAGES +#undef M + +#define M(_name, _id, _fn_name, _req_type, _rsp_type) \ +int \ +otx2_mbox_up_handler_ ## _fn_name(struct otx2_nic *pfvf, \ + struct _req_type *req, \ + struct _rsp_type *rsp); \ + +MBOX_UP_CGX_MESSAGES +MBOX_UP_MCS_MESSAGES +#undef M + +/* Time to wait before watchdog kicks off */ +#define OTX2_TX_TIMEOUT (100 * HZ) + +#define RVU_PFVF_PF_SHIFT 10 +#define RVU_PFVF_PF_MASK 0x3F +#define RVU_PFVF_FUNC_SHIFT 0 +#define RVU_PFVF_FUNC_MASK 0x3FF + +static inline bool is_otx2_vf(u16 pcifunc) +{ + return !!(pcifunc & RVU_PFVF_FUNC_MASK); +} + +static inline int rvu_get_pf(u16 pcifunc) +{ + return (pcifunc >> RVU_PFVF_PF_SHIFT) & RVU_PFVF_PF_MASK; +} + +static inline dma_addr_t otx2_dma_map_page(struct otx2_nic *pfvf, + struct page *page, + size_t offset, size_t size, + enum dma_data_direction dir) +{ + dma_addr_t iova; + + iova = dma_map_page_attrs(pfvf->dev, page, + offset, size, dir, DMA_ATTR_SKIP_CPU_SYNC); + if (unlikely(dma_mapping_error(pfvf->dev, iova))) + return (dma_addr_t)NULL; + return iova; +} + +static inline void otx2_dma_unmap_page(struct otx2_nic *pfvf, + dma_addr_t addr, size_t size, + enum dma_data_direction dir) +{ + dma_unmap_page_attrs(pfvf->dev, addr, size, + dir, DMA_ATTR_SKIP_CPU_SYNC); +} + +static inline u16 otx2_get_smq_idx(struct otx2_nic *pfvf, u16 qidx) +{ + u16 smq; +#ifdef CONFIG_DCB + if (qidx < NIX_PF_PFC_PRIO_MAX && pfvf->pfc_alloc_status[qidx]) + return pfvf->pfc_schq_list[NIX_TXSCH_LVL_SMQ][qidx]; +#endif + /* check if qidx falls under QOS queues */ + if (qidx >= pfvf->hw.non_qos_queues) + smq = pfvf->qos.qid_to_sqmap[qidx - pfvf->hw.non_qos_queues]; + else + smq = pfvf->hw.txschq_list[NIX_TXSCH_LVL_SMQ][0]; + + return smq; +} + +static inline u16 otx2_get_total_tx_queues(struct otx2_nic *pfvf) +{ + return pfvf->hw.non_qos_queues + pfvf->hw.tc_tx_queues; +} + +/* MSI-X APIs */ +void otx2_free_cints(struct otx2_nic *pfvf, int n); +void otx2_set_cints_affinity(struct otx2_nic *pfvf); +int otx2_set_mac_address(struct net_device *netdev, void *p); +int otx2_hw_set_mtu(struct otx2_nic *pfvf, int mtu); +void otx2_tx_timeout(struct net_device *netdev, unsigned int txq); +void otx2_get_mac_from_af(struct net_device *netdev); +void otx2_config_irq_coalescing(struct otx2_nic *pfvf, int qidx); +int otx2_config_pause_frm(struct otx2_nic *pfvf); +void otx2_setup_segmentation(struct otx2_nic *pfvf); + +/* RVU block related APIs */ +int otx2_attach_npa_nix(struct otx2_nic *pfvf); +int otx2_detach_resources(struct mbox *mbox); +int otx2_config_npa(struct otx2_nic *pfvf); +int otx2_sq_aura_pool_init(struct otx2_nic *pfvf); +int otx2_rq_aura_pool_init(struct otx2_nic *pfvf); +void otx2_aura_pool_free(struct otx2_nic *pfvf); +void otx2_free_aura_ptr(struct otx2_nic *pfvf, int type); +void otx2_sq_free_sqbs(struct otx2_nic *pfvf); +int otx2_config_nix(struct otx2_nic *pfvf); +int otx2_config_nix_queues(struct otx2_nic *pfvf); +int otx2_txschq_config(struct otx2_nic *pfvf, int lvl, int prio, bool pfc_en); +int otx2_txsch_alloc(struct otx2_nic *pfvf); +void otx2_txschq_stop(struct otx2_nic *pfvf); +void otx2_txschq_free_one(struct otx2_nic *pfvf, u16 lvl, u16 schq); +void otx2_free_pending_sqe(struct otx2_nic *pfvf); +void otx2_sqb_flush(struct otx2_nic *pfvf); +int otx2_alloc_rbuf(struct otx2_nic *pfvf, struct otx2_pool *pool, + dma_addr_t *dma); +int otx2_rxtx_enable(struct otx2_nic *pfvf, bool enable); +void otx2_ctx_disable(struct mbox *mbox, int type, bool npa); +int otx2_nix_config_bp(struct otx2_nic *pfvf, bool enable); +void otx2_cleanup_rx_cqes(struct otx2_nic *pfvf, struct otx2_cq_queue *cq); +void otx2_cleanup_tx_cqes(struct otx2_nic *pfvf, struct otx2_cq_queue *cq); +int otx2_sq_init(struct otx2_nic *pfvf, u16 qidx, u16 sqb_aura); +int otx2_sq_aq_init(void *dev, u16 qidx, u16 sqb_aura); +int cn10k_sq_aq_init(void *dev, u16 qidx, u16 sqb_aura); +int otx2_alloc_buffer(struct otx2_nic *pfvf, struct otx2_cq_queue *cq, + dma_addr_t *dma); +int otx2_pool_init(struct otx2_nic *pfvf, u16 pool_id, + int stack_pages, int numptrs, int buf_size); +int otx2_aura_init(struct otx2_nic *pfvf, int aura_id, + int pool_id, int numptrs); + +/* RSS configuration APIs*/ +int otx2_rss_init(struct otx2_nic *pfvf); +int otx2_set_flowkey_cfg(struct otx2_nic *pfvf); +void otx2_set_rss_key(struct otx2_nic *pfvf); +int otx2_set_rss_table(struct otx2_nic *pfvf, int ctx_id); + +/* Mbox handlers */ +void mbox_handler_msix_offset(struct otx2_nic *pfvf, + struct msix_offset_rsp *rsp); +void mbox_handler_npa_lf_alloc(struct otx2_nic *pfvf, + struct npa_lf_alloc_rsp *rsp); +void mbox_handler_nix_lf_alloc(struct otx2_nic *pfvf, + struct nix_lf_alloc_rsp *rsp); +void mbox_handler_nix_txsch_alloc(struct otx2_nic *pf, + struct nix_txsch_alloc_rsp *rsp); +void mbox_handler_cgx_stats(struct otx2_nic *pfvf, + struct cgx_stats_rsp *rsp); +void mbox_handler_cgx_fec_stats(struct otx2_nic *pfvf, + struct cgx_fec_stats_rsp *rsp); +void otx2_set_fec_stats_count(struct otx2_nic *pfvf); +void mbox_handler_nix_bp_enable(struct otx2_nic *pfvf, + struct nix_bp_cfg_rsp *rsp); + +/* Device stats APIs */ +void otx2_get_dev_stats(struct otx2_nic *pfvf); +void otx2_get_stats64(struct net_device *netdev, + struct rtnl_link_stats64 *stats); +void otx2_update_lmac_stats(struct otx2_nic *pfvf); +void otx2_update_lmac_fec_stats(struct otx2_nic *pfvf); +int otx2_update_rq_stats(struct otx2_nic *pfvf, int qidx); +int otx2_update_sq_stats(struct otx2_nic *pfvf, int qidx); +void otx2_set_ethtool_ops(struct net_device *netdev); +void otx2vf_set_ethtool_ops(struct net_device *netdev); + +int otx2_open(struct net_device *netdev); +int otx2_stop(struct net_device *netdev); +int otx2_set_real_num_queues(struct net_device *netdev, + int tx_queues, int rx_queues); +int otx2_ioctl(struct net_device *netdev, struct ifreq *req, int cmd); +int otx2_config_hwtstamp(struct net_device *netdev, struct ifreq *ifr); + +/* MCAM filter related APIs */ +int otx2_mcam_flow_init(struct otx2_nic *pf); +int otx2vf_mcam_flow_init(struct otx2_nic *pfvf); +int otx2_alloc_mcam_entries(struct otx2_nic *pfvf, u16 count); +void otx2_mcam_flow_del(struct otx2_nic *pf); +int otx2_destroy_ntuple_flows(struct otx2_nic *pf); +int otx2_destroy_mcam_flows(struct otx2_nic *pfvf); +int otx2_get_flow(struct otx2_nic *pfvf, + struct ethtool_rxnfc *nfc, u32 location); +int otx2_get_all_flows(struct otx2_nic *pfvf, + struct ethtool_rxnfc *nfc, u32 *rule_locs); +int otx2_add_flow(struct otx2_nic *pfvf, + struct ethtool_rxnfc *nfc); +int otx2_remove_flow(struct otx2_nic *pfvf, u32 location); +int otx2_get_maxflows(struct otx2_flow_config *flow_cfg); +void otx2_rss_ctx_flow_del(struct otx2_nic *pfvf, int ctx_id); +int otx2_del_macfilter(struct net_device *netdev, const u8 *mac); +int otx2_add_macfilter(struct net_device *netdev, const u8 *mac); +int otx2_enable_rxvlan(struct otx2_nic *pf, bool enable); +int otx2_install_rxvlan_offload_flow(struct otx2_nic *pfvf); +bool otx2_xdp_sq_append_pkt(struct otx2_nic *pfvf, u64 iova, int len, u16 qidx); +u16 otx2_get_max_mtu(struct otx2_nic *pfvf); +int otx2_handle_ntuple_tc_features(struct net_device *netdev, + netdev_features_t features); +int otx2_smq_flush(struct otx2_nic *pfvf, int smq); + +/* tc support */ +int otx2_init_tc(struct otx2_nic *nic); +void otx2_shutdown_tc(struct otx2_nic *nic); +int otx2_setup_tc(struct net_device *netdev, enum tc_setup_type type, + void *type_data); +void otx2_tc_apply_ingress_police_rules(struct otx2_nic *nic); + +/* CGX/RPM DMAC filters support */ +int otx2_dmacflt_get_max_cnt(struct otx2_nic *pf); +int otx2_dmacflt_add(struct otx2_nic *pf, const u8 *mac, u32 bit_pos); +int otx2_dmacflt_remove(struct otx2_nic *pf, const u8 *mac, u32 bit_pos); +int otx2_dmacflt_update(struct otx2_nic *pf, u8 *mac, u32 bit_pos); +void otx2_dmacflt_reinstall_flows(struct otx2_nic *pf); +void otx2_dmacflt_update_pfmac_flow(struct otx2_nic *pfvf); + +#ifdef CONFIG_DCB +/* DCB support*/ +void otx2_update_bpid_in_rqctx(struct otx2_nic *pfvf, int vlan_prio, int qidx, bool pfc_enable); +int otx2_config_priority_flow_ctrl(struct otx2_nic *pfvf); +int otx2_dcbnl_set_ops(struct net_device *dev); +/* PFC support */ +int otx2_pfc_txschq_config(struct otx2_nic *pfvf); +int otx2_pfc_txschq_alloc(struct otx2_nic *pfvf); +int otx2_pfc_txschq_update(struct otx2_nic *pfvf); +int otx2_pfc_txschq_stop(struct otx2_nic *pfvf); +#endif + +#if IS_ENABLED(CONFIG_MACSEC) +/* MACSEC offload support */ +int cn10k_mcs_init(struct otx2_nic *pfvf); +void cn10k_mcs_free(struct otx2_nic *pfvf); +void cn10k_handle_mcs_event(struct otx2_nic *pfvf, struct mcs_intr_info *event); +#else +static inline int cn10k_mcs_init(struct otx2_nic *pfvf) { return 0; } +static inline void cn10k_mcs_free(struct otx2_nic *pfvf) {} +static inline void cn10k_handle_mcs_event(struct otx2_nic *pfvf, + struct mcs_intr_info *event) +{} +#endif /* CONFIG_MACSEC */ + +/* qos support */ +static inline void otx2_qos_init(struct otx2_nic *pfvf, int qos_txqs) +{ + struct otx2_hw *hw = &pfvf->hw; + + hw->tc_tx_queues = qos_txqs; +} + +u16 otx2_select_queue(struct net_device *netdev, struct sk_buff *skb, + struct net_device *sb_dev); +#endif /* OTX2_COMMON_H */ diff --git a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_dcbnl.c b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_dcbnl.c new file mode 100644 index 000000000..28fb643d2 --- /dev/null +++ b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_dcbnl.c @@ -0,0 +1,474 @@ +// SPDX-License-Identifier: GPL-2.0 +/* Marvell RVU Ethernet driver + * + * Copyright (C) 2021 Marvell. + * + */ + +#include "otx2_common.h" + +static int otx2_check_pfc_config(struct otx2_nic *pfvf) +{ + u8 tx_queues = pfvf->hw.tx_queues, prio; + u8 pfc_en = pfvf->pfc_en; + + for (prio = 0; prio < NIX_PF_PFC_PRIO_MAX; prio++) { + if ((pfc_en & (1 << prio)) && + prio > tx_queues - 1) { + dev_warn(pfvf->dev, + "Increase number of tx queues from %d to %d to support PFC.\n", + tx_queues, prio + 1); + return -EINVAL; + } + } + + return 0; +} + +int otx2_pfc_txschq_config(struct otx2_nic *pfvf) +{ + u8 pfc_en, pfc_bit_set; + int prio, lvl, err; + + pfc_en = pfvf->pfc_en; + for (prio = 0; prio < NIX_PF_PFC_PRIO_MAX; prio++) { + pfc_bit_set = pfc_en & (1 << prio); + + /* Either PFC bit is not set + * or tx scheduler is not allocated for the priority + */ + if (!pfc_bit_set || !pfvf->pfc_alloc_status[prio]) + continue; + + /* configure the scheduler for the tls*/ + for (lvl = 0; lvl < NIX_TXSCH_LVL_CNT; lvl++) { + err = otx2_txschq_config(pfvf, lvl, prio, true); + if (err) { + dev_err(pfvf->dev, + "%s configure PFC tx schq for lvl:%d, prio:%d failed!\n", + __func__, lvl, prio); + return err; + } + } + } + + return 0; +} + +static int otx2_pfc_txschq_alloc_one(struct otx2_nic *pfvf, u8 prio) +{ + struct nix_txsch_alloc_req *req; + struct nix_txsch_alloc_rsp *rsp; + int lvl, rc; + + /* Get memory to put this msg */ + req = otx2_mbox_alloc_msg_nix_txsch_alloc(&pfvf->mbox); + if (!req) + return -ENOMEM; + + /* Request one schq per level upto max level as configured + * link config level. These rest of the scheduler can be + * same as hw.txschq_list. + */ + for (lvl = 0; lvl <= pfvf->hw.txschq_link_cfg_lvl; lvl++) + req->schq[lvl] = 1; + + rc = otx2_sync_mbox_msg(&pfvf->mbox); + if (rc) + return rc; + + rsp = (struct nix_txsch_alloc_rsp *) + otx2_mbox_get_rsp(&pfvf->mbox.mbox, 0, &req->hdr); + if (IS_ERR(rsp)) + return PTR_ERR(rsp); + + /* Setup transmit scheduler list */ + for (lvl = 0; lvl <= pfvf->hw.txschq_link_cfg_lvl; lvl++) { + if (!rsp->schq[lvl]) + return -ENOSPC; + + pfvf->pfc_schq_list[lvl][prio] = rsp->schq_list[lvl][0]; + } + + /* Set the Tx schedulers for rest of the levels same as + * hw.txschq_list as those will be common for all. + */ + for (; lvl < NIX_TXSCH_LVL_CNT; lvl++) + pfvf->pfc_schq_list[lvl][prio] = pfvf->hw.txschq_list[lvl][0]; + + pfvf->pfc_alloc_status[prio] = true; + return 0; +} + +int otx2_pfc_txschq_alloc(struct otx2_nic *pfvf) +{ + u8 pfc_en = pfvf->pfc_en; + u8 pfc_bit_set; + int err, prio; + + for (prio = 0; prio < NIX_PF_PFC_PRIO_MAX; prio++) { + pfc_bit_set = pfc_en & (1 << prio); + + if (!pfc_bit_set || pfvf->pfc_alloc_status[prio]) + continue; + + /* Add new scheduler to the priority */ + err = otx2_pfc_txschq_alloc_one(pfvf, prio); + if (err) { + dev_err(pfvf->dev, "%s failed to allocate PFC TX schedulers\n", __func__); + return err; + } + } + + return 0; +} + +static int otx2_pfc_txschq_stop_one(struct otx2_nic *pfvf, u8 prio) +{ + int lvl; + + /* free PFC TLx nodes */ + for (lvl = 0; lvl <= pfvf->hw.txschq_link_cfg_lvl; lvl++) + otx2_txschq_free_one(pfvf, lvl, + pfvf->pfc_schq_list[lvl][prio]); + + pfvf->pfc_alloc_status[prio] = false; + return 0; +} + +static int otx2_pfc_update_sq_smq_mapping(struct otx2_nic *pfvf, int prio) +{ + struct nix_cn10k_aq_enq_req *cn10k_sq_aq; + struct net_device *dev = pfvf->netdev; + bool if_up = netif_running(dev); + struct nix_aq_enq_req *sq_aq; + + if (if_up) { + if (pfvf->pfc_alloc_status[prio]) + netif_tx_stop_all_queues(pfvf->netdev); + else + netif_tx_stop_queue(netdev_get_tx_queue(dev, prio)); + } + + if (test_bit(CN10K_LMTST, &pfvf->hw.cap_flag)) { + cn10k_sq_aq = otx2_mbox_alloc_msg_nix_cn10k_aq_enq(&pfvf->mbox); + if (!cn10k_sq_aq) + return -ENOMEM; + + /* Fill AQ info */ + cn10k_sq_aq->qidx = prio; + cn10k_sq_aq->ctype = NIX_AQ_CTYPE_SQ; + cn10k_sq_aq->op = NIX_AQ_INSTOP_WRITE; + + /* Fill fields to update */ + cn10k_sq_aq->sq.ena = 1; + cn10k_sq_aq->sq_mask.ena = 1; + cn10k_sq_aq->sq_mask.smq = GENMASK(9, 0); + cn10k_sq_aq->sq.smq = otx2_get_smq_idx(pfvf, prio); + } else { + sq_aq = otx2_mbox_alloc_msg_nix_aq_enq(&pfvf->mbox); + if (!sq_aq) + return -ENOMEM; + + /* Fill AQ info */ + sq_aq->qidx = prio; + sq_aq->ctype = NIX_AQ_CTYPE_SQ; + sq_aq->op = NIX_AQ_INSTOP_WRITE; + + /* Fill fields to update */ + sq_aq->sq.ena = 1; + sq_aq->sq_mask.ena = 1; + sq_aq->sq_mask.smq = GENMASK(8, 0); + sq_aq->sq.smq = otx2_get_smq_idx(pfvf, prio); + } + + otx2_sync_mbox_msg(&pfvf->mbox); + + if (if_up) { + if (pfvf->pfc_alloc_status[prio]) + netif_tx_start_all_queues(pfvf->netdev); + else + netif_tx_start_queue(netdev_get_tx_queue(dev, prio)); + } + + return 0; +} + +int otx2_pfc_txschq_update(struct otx2_nic *pfvf) +{ + bool if_up = netif_running(pfvf->netdev); + u8 pfc_en = pfvf->pfc_en, pfc_bit_set; + struct mbox *mbox = &pfvf->mbox; + int err, prio; + + mutex_lock(&mbox->lock); + for (prio = 0; prio < NIX_PF_PFC_PRIO_MAX; prio++) { + pfc_bit_set = pfc_en & (1 << prio); + + /* tx scheduler was created but user wants to disable now */ + if (!pfc_bit_set && pfvf->pfc_alloc_status[prio]) { + mutex_unlock(&mbox->lock); + if (if_up) + netif_tx_stop_all_queues(pfvf->netdev); + + otx2_smq_flush(pfvf, pfvf->pfc_schq_list[NIX_TXSCH_LVL_SMQ][prio]); + if (if_up) + netif_tx_start_all_queues(pfvf->netdev); + + /* delete the schq */ + err = otx2_pfc_txschq_stop_one(pfvf, prio); + if (err) { + dev_err(pfvf->dev, + "%s failed to stop PFC tx schedulers for priority: %d\n", + __func__, prio); + return err; + } + + mutex_lock(&mbox->lock); + goto update_sq_smq_map; + } + + /* Either PFC bit is not set + * or Tx scheduler is already mapped for the priority + */ + if (!pfc_bit_set || pfvf->pfc_alloc_status[prio]) + continue; + + /* Add new scheduler to the priority */ + err = otx2_pfc_txschq_alloc_one(pfvf, prio); + if (err) { + mutex_unlock(&mbox->lock); + dev_err(pfvf->dev, + "%s failed to allocate PFC tx schedulers for priority: %d\n", + __func__, prio); + return err; + } + +update_sq_smq_map: + err = otx2_pfc_update_sq_smq_mapping(pfvf, prio); + if (err) { + mutex_unlock(&mbox->lock); + dev_err(pfvf->dev, "%s failed PFC Tx schq sq:%d mapping", __func__, prio); + return err; + } + } + + err = otx2_pfc_txschq_config(pfvf); + mutex_unlock(&mbox->lock); + if (err) + return err; + + return 0; +} + +int otx2_pfc_txschq_stop(struct otx2_nic *pfvf) +{ + u8 pfc_en, pfc_bit_set; + int prio, err; + + pfc_en = pfvf->pfc_en; + for (prio = 0; prio < NIX_PF_PFC_PRIO_MAX; prio++) { + pfc_bit_set = pfc_en & (1 << prio); + if (!pfc_bit_set || !pfvf->pfc_alloc_status[prio]) + continue; + + /* Delete the existing scheduler */ + err = otx2_pfc_txschq_stop_one(pfvf, prio); + if (err) { + dev_err(pfvf->dev, "%s failed to stop PFC TX schedulers\n", __func__); + return err; + } + } + + return 0; +} + +int otx2_config_priority_flow_ctrl(struct otx2_nic *pfvf) +{ + struct cgx_pfc_cfg *req; + struct cgx_pfc_rsp *rsp; + int err = 0; + + if (is_otx2_lbkvf(pfvf->pdev)) + return 0; + + mutex_lock(&pfvf->mbox.lock); + req = otx2_mbox_alloc_msg_cgx_prio_flow_ctrl_cfg(&pfvf->mbox); + if (!req) { + err = -ENOMEM; + goto unlock; + } + + if (pfvf->pfc_en) { + req->rx_pause = true; + req->tx_pause = true; + } else { + req->rx_pause = false; + req->tx_pause = false; + } + req->pfc_en = pfvf->pfc_en; + + if (!otx2_sync_mbox_msg(&pfvf->mbox)) { + rsp = (struct cgx_pfc_rsp *) + otx2_mbox_get_rsp(&pfvf->mbox.mbox, 0, &req->hdr); + if (req->rx_pause != rsp->rx_pause || req->tx_pause != rsp->tx_pause) { + dev_warn(pfvf->dev, + "Failed to config PFC\n"); + err = -EPERM; + } + } +unlock: + mutex_unlock(&pfvf->mbox.lock); + return err; +} + +void otx2_update_bpid_in_rqctx(struct otx2_nic *pfvf, int vlan_prio, int qidx, + bool pfc_enable) +{ + bool if_up = netif_running(pfvf->netdev); + struct npa_aq_enq_req *npa_aq; + struct nix_aq_enq_req *aq; + int err = 0; + + if (pfvf->queue_to_pfc_map[qidx] && pfc_enable) { + dev_warn(pfvf->dev, + "PFC enable not permitted as Priority %d already mapped to Queue %d\n", + pfvf->queue_to_pfc_map[qidx], qidx); + return; + } + + if (if_up) { + netif_tx_stop_all_queues(pfvf->netdev); + netif_carrier_off(pfvf->netdev); + } + + pfvf->queue_to_pfc_map[qidx] = vlan_prio; + + aq = otx2_mbox_alloc_msg_nix_aq_enq(&pfvf->mbox); + if (!aq) { + err = -ENOMEM; + goto out; + } + + aq->cq.bpid = pfvf->bpid[vlan_prio]; + aq->cq_mask.bpid = GENMASK(8, 0); + + /* Fill AQ info */ + aq->qidx = qidx; + aq->ctype = NIX_AQ_CTYPE_CQ; + aq->op = NIX_AQ_INSTOP_WRITE; + + otx2_sync_mbox_msg(&pfvf->mbox); + + npa_aq = otx2_mbox_alloc_msg_npa_aq_enq(&pfvf->mbox); + if (!npa_aq) { + err = -ENOMEM; + goto out; + } + npa_aq->aura.nix0_bpid = pfvf->bpid[vlan_prio]; + npa_aq->aura_mask.nix0_bpid = GENMASK(8, 0); + + /* Fill NPA AQ info */ + npa_aq->aura_id = qidx; + npa_aq->ctype = NPA_AQ_CTYPE_AURA; + npa_aq->op = NPA_AQ_INSTOP_WRITE; + otx2_sync_mbox_msg(&pfvf->mbox); + +out: + if (if_up) { + netif_carrier_on(pfvf->netdev); + netif_tx_start_all_queues(pfvf->netdev); + } + + if (err) + dev_warn(pfvf->dev, + "Updating BPIDs in CQ and Aura contexts of RQ%d failed with err %d\n", + qidx, err); +} + +static int otx2_dcbnl_ieee_getpfc(struct net_device *dev, struct ieee_pfc *pfc) +{ + struct otx2_nic *pfvf = netdev_priv(dev); + + pfc->pfc_cap = IEEE_8021QAZ_MAX_TCS; + pfc->pfc_en = pfvf->pfc_en; + + return 0; +} + +static int otx2_dcbnl_ieee_setpfc(struct net_device *dev, struct ieee_pfc *pfc) +{ + struct otx2_nic *pfvf = netdev_priv(dev); + u8 old_pfc_en; + int err; + + old_pfc_en = pfvf->pfc_en; + pfvf->pfc_en = pfc->pfc_en; + + if (pfvf->hw.tx_queues >= NIX_PF_PFC_PRIO_MAX) + goto process_pfc; + + /* Check if the PFC configuration can be + * supported by the tx queue configuration + */ + err = otx2_check_pfc_config(pfvf); + if (err) { + pfvf->pfc_en = old_pfc_en; + return err; + } + +process_pfc: + err = otx2_config_priority_flow_ctrl(pfvf); + if (err) { + pfvf->pfc_en = old_pfc_en; + return err; + } + + /* Request Per channel Bpids */ + if (pfc->pfc_en) + otx2_nix_config_bp(pfvf, true); + + err = otx2_pfc_txschq_update(pfvf); + if (err) { + if (pfc->pfc_en) + otx2_nix_config_bp(pfvf, false); + + otx2_pfc_txschq_stop(pfvf); + pfvf->pfc_en = old_pfc_en; + otx2_config_priority_flow_ctrl(pfvf); + dev_err(pfvf->dev, "%s failed to update TX schedulers\n", __func__); + return err; + } + + return 0; +} + +static u8 otx2_dcbnl_getdcbx(struct net_device __always_unused *dev) +{ + return DCB_CAP_DCBX_HOST | DCB_CAP_DCBX_VER_IEEE; +} + +static u8 otx2_dcbnl_setdcbx(struct net_device __always_unused *dev, u8 mode) +{ + return (mode != (DCB_CAP_DCBX_HOST | DCB_CAP_DCBX_VER_IEEE)) ? 1 : 0; +} + +static const struct dcbnl_rtnl_ops otx2_dcbnl_ops = { + .ieee_getpfc = otx2_dcbnl_ieee_getpfc, + .ieee_setpfc = otx2_dcbnl_ieee_setpfc, + .getdcbx = otx2_dcbnl_getdcbx, + .setdcbx = otx2_dcbnl_setdcbx, +}; + +int otx2_dcbnl_set_ops(struct net_device *dev) +{ + struct otx2_nic *pfvf = netdev_priv(dev); + + pfvf->queue_to_pfc_map = devm_kzalloc(pfvf->dev, pfvf->hw.rx_queues, + GFP_KERNEL); + if (!pfvf->queue_to_pfc_map) + return -ENOMEM; + dev->dcbnl_ops = &otx2_dcbnl_ops; + + return 0; +} diff --git a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_devlink.c b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_devlink.c new file mode 100644 index 000000000..5f71a72f9 --- /dev/null +++ b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_devlink.c @@ -0,0 +1,140 @@ +// SPDX-License-Identifier: GPL-2.0 +/* Marvell RVU PF/VF Netdev Devlink + * + * Copyright (C) 2021 Marvell. + */ + +#include "otx2_common.h" + +/* Devlink Params APIs */ +static int otx2_dl_mcam_count_validate(struct devlink *devlink, u32 id, + union devlink_param_value val, + struct netlink_ext_ack *extack) +{ + struct otx2_devlink *otx2_dl = devlink_priv(devlink); + struct otx2_nic *pfvf = otx2_dl->pfvf; + struct otx2_flow_config *flow_cfg; + + if (!pfvf->flow_cfg) { + NL_SET_ERR_MSG_MOD(extack, + "pfvf->flow_cfg not initialized"); + return -EINVAL; + } + + flow_cfg = pfvf->flow_cfg; + if (flow_cfg && flow_cfg->nr_flows) { + NL_SET_ERR_MSG_MOD(extack, + "Cannot modify count when there are active rules"); + return -EINVAL; + } + + return 0; +} + +static int otx2_dl_mcam_count_set(struct devlink *devlink, u32 id, + struct devlink_param_gset_ctx *ctx) +{ + struct otx2_devlink *otx2_dl = devlink_priv(devlink); + struct otx2_nic *pfvf = otx2_dl->pfvf; + + if (!pfvf->flow_cfg) + return 0; + + otx2_alloc_mcam_entries(pfvf, ctx->val.vu16); + + return 0; +} + +static int otx2_dl_mcam_count_get(struct devlink *devlink, u32 id, + struct devlink_param_gset_ctx *ctx) +{ + struct otx2_devlink *otx2_dl = devlink_priv(devlink); + struct otx2_nic *pfvf = otx2_dl->pfvf; + struct otx2_flow_config *flow_cfg; + + if (!pfvf->flow_cfg) { + ctx->val.vu16 = 0; + return 0; + } + + flow_cfg = pfvf->flow_cfg; + ctx->val.vu16 = flow_cfg->max_flows; + + return 0; +} + +enum otx2_dl_param_id { + OTX2_DEVLINK_PARAM_ID_BASE = DEVLINK_PARAM_GENERIC_ID_MAX, + OTX2_DEVLINK_PARAM_ID_MCAM_COUNT, +}; + +static const struct devlink_param otx2_dl_params[] = { + DEVLINK_PARAM_DRIVER(OTX2_DEVLINK_PARAM_ID_MCAM_COUNT, + "mcam_count", DEVLINK_PARAM_TYPE_U16, + BIT(DEVLINK_PARAM_CMODE_RUNTIME), + otx2_dl_mcam_count_get, otx2_dl_mcam_count_set, + otx2_dl_mcam_count_validate), +}; + +/* Devlink OPs */ +static int otx2_devlink_info_get(struct devlink *devlink, + struct devlink_info_req *req, + struct netlink_ext_ack *extack) +{ + struct otx2_devlink *otx2_dl = devlink_priv(devlink); + struct otx2_nic *pfvf = otx2_dl->pfvf; + + if (is_otx2_vf(pfvf->pcifunc)) + return devlink_info_driver_name_put(req, "rvu_nicvf"); + + return devlink_info_driver_name_put(req, "rvu_nicpf"); +} + +static const struct devlink_ops otx2_devlink_ops = { + .info_get = otx2_devlink_info_get, +}; + +int otx2_register_dl(struct otx2_nic *pfvf) +{ + struct otx2_devlink *otx2_dl; + struct devlink *dl; + int err; + + dl = devlink_alloc(&otx2_devlink_ops, + sizeof(struct otx2_devlink), pfvf->dev); + if (!dl) { + dev_warn(pfvf->dev, "devlink_alloc failed\n"); + return -ENOMEM; + } + + otx2_dl = devlink_priv(dl); + otx2_dl->dl = dl; + otx2_dl->pfvf = pfvf; + pfvf->dl = otx2_dl; + + err = devlink_params_register(dl, otx2_dl_params, + ARRAY_SIZE(otx2_dl_params)); + if (err) { + dev_err(pfvf->dev, + "devlink params register failed with error %d", err); + goto err_dl; + } + + devlink_register(dl); + return 0; + +err_dl: + devlink_free(dl); + return err; +} + +void otx2_unregister_dl(struct otx2_nic *pfvf) +{ + struct otx2_devlink *otx2_dl = pfvf->dl; + struct devlink *dl = otx2_dl->dl; + + devlink_unregister(dl); + devlink_params_unregister(dl, otx2_dl_params, + ARRAY_SIZE(otx2_dl_params)); + devlink_free(dl); +} diff --git a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_devlink.h b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_devlink.h new file mode 100644 index 000000000..c7bd4f3c6 --- /dev/null +++ b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_devlink.h @@ -0,0 +1,20 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* Marvell RVU PF/VF Netdev Devlink + * + * Copyright (C) 2021 Marvell. + * + */ + +#ifndef OTX2_DEVLINK_H +#define OTX2_DEVLINK_H + +struct otx2_devlink { + struct devlink *dl; + struct otx2_nic *pfvf; +}; + +/* Devlink APIs */ +int otx2_register_dl(struct otx2_nic *pfvf); +void otx2_unregister_dl(struct otx2_nic *pfvf); + +#endif /* RVU_DEVLINK_H */ diff --git a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_dmac_flt.c b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_dmac_flt.c new file mode 100644 index 000000000..80d853b34 --- /dev/null +++ b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_dmac_flt.c @@ -0,0 +1,209 @@ +// SPDX-License-Identifier: GPL-2.0 +/* Marvell RVU Ethernet driver + * + * Copyright (C) 2021 Marvell. + * + */ + +#include "otx2_common.h" + +static int otx2_dmacflt_do_add(struct otx2_nic *pf, const u8 *mac, + u32 *dmac_index) +{ + struct cgx_mac_addr_add_req *req; + struct cgx_mac_addr_add_rsp *rsp; + int err; + + mutex_lock(&pf->mbox.lock); + + req = otx2_mbox_alloc_msg_cgx_mac_addr_add(&pf->mbox); + if (!req) { + mutex_unlock(&pf->mbox.lock); + return -ENOMEM; + } + + ether_addr_copy(req->mac_addr, mac); + err = otx2_sync_mbox_msg(&pf->mbox); + + if (!err) { + rsp = (struct cgx_mac_addr_add_rsp *) + otx2_mbox_get_rsp(&pf->mbox.mbox, 0, &req->hdr); + *dmac_index = rsp->index; + } + + mutex_unlock(&pf->mbox.lock); + return err; +} + +static int otx2_dmacflt_add_pfmac(struct otx2_nic *pf, u32 *dmac_index) +{ + struct cgx_mac_addr_set_or_get *req; + struct cgx_mac_addr_set_or_get *rsp; + int err; + + mutex_lock(&pf->mbox.lock); + + req = otx2_mbox_alloc_msg_cgx_mac_addr_set(&pf->mbox); + if (!req) { + mutex_unlock(&pf->mbox.lock); + return -ENOMEM; + } + + req->index = *dmac_index; + + ether_addr_copy(req->mac_addr, pf->netdev->dev_addr); + err = otx2_sync_mbox_msg(&pf->mbox); + + if (err) + goto out; + + rsp = (struct cgx_mac_addr_set_or_get *) + otx2_mbox_get_rsp(&pf->mbox.mbox, 0, &req->hdr); + + if (IS_ERR_OR_NULL(rsp)) { + err = -EINVAL; + goto out; + } + + *dmac_index = rsp->index; +out: + mutex_unlock(&pf->mbox.lock); + return err; +} + +int otx2_dmacflt_add(struct otx2_nic *pf, const u8 *mac, u32 bit_pos) +{ + u32 *dmacindex; + + /* Store dmacindex returned by CGX/RPM driver which will + * be used for macaddr update/remove + */ + dmacindex = &pf->flow_cfg->bmap_to_dmacindex[bit_pos]; + + if (ether_addr_equal(mac, pf->netdev->dev_addr)) + return otx2_dmacflt_add_pfmac(pf, dmacindex); + else + return otx2_dmacflt_do_add(pf, mac, dmacindex); +} + +static int otx2_dmacflt_do_remove(struct otx2_nic *pfvf, const u8 *mac, + u32 dmac_index) +{ + struct cgx_mac_addr_del_req *req; + int err; + + mutex_lock(&pfvf->mbox.lock); + req = otx2_mbox_alloc_msg_cgx_mac_addr_del(&pfvf->mbox); + if (!req) { + mutex_unlock(&pfvf->mbox.lock); + return -ENOMEM; + } + + req->index = dmac_index; + + err = otx2_sync_mbox_msg(&pfvf->mbox); + mutex_unlock(&pfvf->mbox.lock); + + return err; +} + +static int otx2_dmacflt_remove_pfmac(struct otx2_nic *pf, u32 dmac_index) +{ + struct cgx_mac_addr_reset_req *req; + int err; + + mutex_lock(&pf->mbox.lock); + req = otx2_mbox_alloc_msg_cgx_mac_addr_reset(&pf->mbox); + if (!req) { + mutex_unlock(&pf->mbox.lock); + return -ENOMEM; + } + req->index = dmac_index; + + err = otx2_sync_mbox_msg(&pf->mbox); + + mutex_unlock(&pf->mbox.lock); + return err; +} + +int otx2_dmacflt_remove(struct otx2_nic *pf, const u8 *mac, + u32 bit_pos) +{ + u32 dmacindex = pf->flow_cfg->bmap_to_dmacindex[bit_pos]; + + if (ether_addr_equal(mac, pf->netdev->dev_addr)) + return otx2_dmacflt_remove_pfmac(pf, dmacindex); + else + return otx2_dmacflt_do_remove(pf, mac, dmacindex); +} + +/* CGX/RPM blocks support max unicast entries of 32. + * on typical configuration MAC block associated + * with 4 lmacs, each lmac will have 8 dmac entries + */ +int otx2_dmacflt_get_max_cnt(struct otx2_nic *pf) +{ + struct cgx_max_dmac_entries_get_rsp *rsp; + struct msg_req *msg; + int err; + + mutex_lock(&pf->mbox.lock); + msg = otx2_mbox_alloc_msg_cgx_mac_max_entries_get(&pf->mbox); + + if (!msg) { + mutex_unlock(&pf->mbox.lock); + return -ENOMEM; + } + + err = otx2_sync_mbox_msg(&pf->mbox); + if (err) + goto out; + + rsp = (struct cgx_max_dmac_entries_get_rsp *) + otx2_mbox_get_rsp(&pf->mbox.mbox, 0, &msg->hdr); + + if (IS_ERR_OR_NULL(rsp)) { + err = -EINVAL; + goto out; + } + + pf->flow_cfg->dmacflt_max_flows = rsp->max_dmac_filters; + +out: + mutex_unlock(&pf->mbox.lock); + return err; +} + +int otx2_dmacflt_update(struct otx2_nic *pf, u8 *mac, u32 bit_pos) +{ + struct cgx_mac_addr_update_req *req; + struct cgx_mac_addr_update_rsp *rsp; + int rc; + + mutex_lock(&pf->mbox.lock); + + req = otx2_mbox_alloc_msg_cgx_mac_addr_update(&pf->mbox); + + if (!req) { + mutex_unlock(&pf->mbox.lock); + return -ENOMEM; + } + + ether_addr_copy(req->mac_addr, mac); + req->index = pf->flow_cfg->bmap_to_dmacindex[bit_pos]; + + /* check the response and change index */ + + rc = otx2_sync_mbox_msg(&pf->mbox); + if (rc) + goto out; + + rsp = (struct cgx_mac_addr_update_rsp *) + otx2_mbox_get_rsp(&pf->mbox.mbox, 0, &req->hdr); + + pf->flow_cfg->bmap_to_dmacindex[bit_pos] = rsp->index; + +out: + mutex_unlock(&pf->mbox.lock); + return rc; +} diff --git a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_ethtool.c b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_ethtool.c new file mode 100644 index 000000000..af779ae40 --- /dev/null +++ b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_ethtool.c @@ -0,0 +1,1435 @@ +// SPDX-License-Identifier: GPL-2.0 +/* Marvell RVU Ethernet driver + * + * Copyright (C) 2020 Marvell. + * + */ + +#include <linux/pci.h> +#include <linux/ethtool.h> +#include <linux/stddef.h> +#include <linux/etherdevice.h> +#include <linux/log2.h> +#include <linux/net_tstamp.h> +#include <linux/linkmode.h> + +#include "otx2_common.h" +#include "otx2_ptp.h" + +#define DRV_NAME "rvu-nicpf" +#define DRV_VF_NAME "rvu-nicvf" + +struct otx2_stat { + char name[ETH_GSTRING_LEN]; + unsigned int index; +}; + +/* HW device stats */ +#define OTX2_DEV_STAT(stat) { \ + .name = #stat, \ + .index = offsetof(struct otx2_dev_stats, stat) / sizeof(u64), \ +} + +enum link_mode { + OTX2_MODE_SUPPORTED, + OTX2_MODE_ADVERTISED +}; + +static const struct otx2_stat otx2_dev_stats[] = { + OTX2_DEV_STAT(rx_ucast_frames), + OTX2_DEV_STAT(rx_bcast_frames), + OTX2_DEV_STAT(rx_mcast_frames), + + OTX2_DEV_STAT(tx_ucast_frames), + OTX2_DEV_STAT(tx_bcast_frames), + OTX2_DEV_STAT(tx_mcast_frames), +}; + +/* Driver level stats */ +#define OTX2_DRV_STAT(stat) { \ + .name = #stat, \ + .index = offsetof(struct otx2_drv_stats, stat) / sizeof(atomic_t), \ +} + +static const struct otx2_stat otx2_drv_stats[] = { + OTX2_DRV_STAT(rx_fcs_errs), + OTX2_DRV_STAT(rx_oversize_errs), + OTX2_DRV_STAT(rx_undersize_errs), + OTX2_DRV_STAT(rx_csum_errs), + OTX2_DRV_STAT(rx_len_errs), + OTX2_DRV_STAT(rx_other_errs), +}; + +static const struct otx2_stat otx2_queue_stats[] = { + { "bytes", 0 }, + { "frames", 1 }, +}; + +static const unsigned int otx2_n_dev_stats = ARRAY_SIZE(otx2_dev_stats); +static const unsigned int otx2_n_drv_stats = ARRAY_SIZE(otx2_drv_stats); +static const unsigned int otx2_n_queue_stats = ARRAY_SIZE(otx2_queue_stats); + +static struct cgx_fw_data *otx2_get_fwdata(struct otx2_nic *pfvf); + +static void otx2_get_drvinfo(struct net_device *netdev, + struct ethtool_drvinfo *info) +{ + struct otx2_nic *pfvf = netdev_priv(netdev); + + strscpy(info->driver, DRV_NAME, sizeof(info->driver)); + strscpy(info->bus_info, pci_name(pfvf->pdev), sizeof(info->bus_info)); +} + +static void otx2_get_qset_strings(struct otx2_nic *pfvf, u8 **data, int qset) +{ + int start_qidx = qset * pfvf->hw.rx_queues; + int qidx, stats; + + for (qidx = 0; qidx < pfvf->hw.rx_queues; qidx++) { + for (stats = 0; stats < otx2_n_queue_stats; stats++) { + sprintf(*data, "rxq%d: %s", qidx + start_qidx, + otx2_queue_stats[stats].name); + *data += ETH_GSTRING_LEN; + } + } + for (qidx = 0; qidx < pfvf->hw.tx_queues; qidx++) { + for (stats = 0; stats < otx2_n_queue_stats; stats++) { + sprintf(*data, "txq%d: %s", qidx + start_qidx, + otx2_queue_stats[stats].name); + *data += ETH_GSTRING_LEN; + } + } +} + +static void otx2_get_strings(struct net_device *netdev, u32 sset, u8 *data) +{ + struct otx2_nic *pfvf = netdev_priv(netdev); + int stats; + + if (sset != ETH_SS_STATS) + return; + + for (stats = 0; stats < otx2_n_dev_stats; stats++) { + memcpy(data, otx2_dev_stats[stats].name, ETH_GSTRING_LEN); + data += ETH_GSTRING_LEN; + } + + for (stats = 0; stats < otx2_n_drv_stats; stats++) { + memcpy(data, otx2_drv_stats[stats].name, ETH_GSTRING_LEN); + data += ETH_GSTRING_LEN; + } + + otx2_get_qset_strings(pfvf, &data, 0); + + if (!test_bit(CN10K_RPM, &pfvf->hw.cap_flag)) { + for (stats = 0; stats < CGX_RX_STATS_COUNT; stats++) { + sprintf(data, "cgx_rxstat%d: ", stats); + data += ETH_GSTRING_LEN; + } + + for (stats = 0; stats < CGX_TX_STATS_COUNT; stats++) { + sprintf(data, "cgx_txstat%d: ", stats); + data += ETH_GSTRING_LEN; + } + } + + strcpy(data, "reset_count"); + data += ETH_GSTRING_LEN; + sprintf(data, "Fec Corrected Errors: "); + data += ETH_GSTRING_LEN; + sprintf(data, "Fec Uncorrected Errors: "); + data += ETH_GSTRING_LEN; +} + +static void otx2_get_qset_stats(struct otx2_nic *pfvf, + struct ethtool_stats *stats, u64 **data) +{ + int stat, qidx; + + if (!pfvf) + return; + for (qidx = 0; qidx < pfvf->hw.rx_queues; qidx++) { + if (!otx2_update_rq_stats(pfvf, qidx)) { + for (stat = 0; stat < otx2_n_queue_stats; stat++) + *((*data)++) = 0; + continue; + } + for (stat = 0; stat < otx2_n_queue_stats; stat++) + *((*data)++) = ((u64 *)&pfvf->qset.rq[qidx].stats) + [otx2_queue_stats[stat].index]; + } + + for (qidx = 0; qidx < pfvf->hw.tx_queues; qidx++) { + if (!otx2_update_sq_stats(pfvf, qidx)) { + for (stat = 0; stat < otx2_n_queue_stats; stat++) + *((*data)++) = 0; + continue; + } + for (stat = 0; stat < otx2_n_queue_stats; stat++) + *((*data)++) = ((u64 *)&pfvf->qset.sq[qidx].stats) + [otx2_queue_stats[stat].index]; + } +} + +static int otx2_get_phy_fec_stats(struct otx2_nic *pfvf) +{ + struct msg_req *req; + int rc = -ENOMEM; + + mutex_lock(&pfvf->mbox.lock); + req = otx2_mbox_alloc_msg_cgx_get_phy_fec_stats(&pfvf->mbox); + if (!req) + goto end; + + if (!otx2_sync_mbox_msg(&pfvf->mbox)) + rc = 0; +end: + mutex_unlock(&pfvf->mbox.lock); + return rc; +} + +/* Get device and per queue statistics */ +static void otx2_get_ethtool_stats(struct net_device *netdev, + struct ethtool_stats *stats, u64 *data) +{ + struct otx2_nic *pfvf = netdev_priv(netdev); + u64 fec_corr_blks, fec_uncorr_blks; + struct cgx_fw_data *rsp; + int stat; + + otx2_get_dev_stats(pfvf); + for (stat = 0; stat < otx2_n_dev_stats; stat++) + *(data++) = ((u64 *)&pfvf->hw.dev_stats) + [otx2_dev_stats[stat].index]; + + for (stat = 0; stat < otx2_n_drv_stats; stat++) + *(data++) = atomic_read(&((atomic_t *)&pfvf->hw.drv_stats) + [otx2_drv_stats[stat].index]); + + otx2_get_qset_stats(pfvf, stats, &data); + + if (!test_bit(CN10K_RPM, &pfvf->hw.cap_flag)) { + otx2_update_lmac_stats(pfvf); + for (stat = 0; stat < CGX_RX_STATS_COUNT; stat++) + *(data++) = pfvf->hw.cgx_rx_stats[stat]; + for (stat = 0; stat < CGX_TX_STATS_COUNT; stat++) + *(data++) = pfvf->hw.cgx_tx_stats[stat]; + } + + *(data++) = pfvf->reset_count; + + fec_corr_blks = pfvf->hw.cgx_fec_corr_blks; + fec_uncorr_blks = pfvf->hw.cgx_fec_uncorr_blks; + + rsp = otx2_get_fwdata(pfvf); + if (!IS_ERR(rsp) && rsp->fwdata.phy.misc.has_fec_stats && + !otx2_get_phy_fec_stats(pfvf)) { + /* Fetch fwdata again because it's been recently populated with + * latest PHY FEC stats. + */ + rsp = otx2_get_fwdata(pfvf); + if (!IS_ERR(rsp)) { + struct fec_stats_s *p = &rsp->fwdata.phy.fec_stats; + + if (pfvf->linfo.fec == OTX2_FEC_BASER) { + fec_corr_blks = p->brfec_corr_blks; + fec_uncorr_blks = p->brfec_uncorr_blks; + } else { + fec_corr_blks = p->rsfec_corr_cws; + fec_uncorr_blks = p->rsfec_uncorr_cws; + } + } + } + + *(data++) = fec_corr_blks; + *(data++) = fec_uncorr_blks; +} + +static int otx2_get_sset_count(struct net_device *netdev, int sset) +{ + struct otx2_nic *pfvf = netdev_priv(netdev); + int qstats_count, mac_stats = 0; + + if (sset != ETH_SS_STATS) + return -EINVAL; + + qstats_count = otx2_n_queue_stats * + (pfvf->hw.rx_queues + pfvf->hw.tx_queues); + if (!test_bit(CN10K_RPM, &pfvf->hw.cap_flag)) + mac_stats = CGX_RX_STATS_COUNT + CGX_TX_STATS_COUNT; + otx2_update_lmac_fec_stats(pfvf); + + return otx2_n_dev_stats + otx2_n_drv_stats + qstats_count + + mac_stats + OTX2_FEC_STATS_CNT + 1; +} + +/* Get no of queues device supports and current queue count */ +static void otx2_get_channels(struct net_device *dev, + struct ethtool_channels *channel) +{ + struct otx2_nic *pfvf = netdev_priv(dev); + + channel->max_rx = pfvf->hw.max_queues; + channel->max_tx = pfvf->hw.max_queues; + + channel->rx_count = pfvf->hw.rx_queues; + channel->tx_count = pfvf->hw.tx_queues; +} + +/* Set no of Tx, Rx queues to be used */ +static int otx2_set_channels(struct net_device *dev, + struct ethtool_channels *channel) +{ + struct otx2_nic *pfvf = netdev_priv(dev); + bool if_up = netif_running(dev); + int err = 0; + + if (!channel->rx_count || !channel->tx_count) + return -EINVAL; + + if (bitmap_weight(&pfvf->rq_bmap, pfvf->hw.rx_queues) > 1) { + netdev_err(dev, + "Receive queues are in use by TC police action\n"); + return -EINVAL; + } + + if (if_up) + dev->netdev_ops->ndo_stop(dev); + + err = otx2_set_real_num_queues(dev, channel->tx_count, + channel->rx_count); + if (err) + return err; + + pfvf->hw.rx_queues = channel->rx_count; + pfvf->hw.tx_queues = channel->tx_count; + pfvf->qset.cq_cnt = pfvf->hw.tx_queues + pfvf->hw.rx_queues; + + if (if_up) + err = dev->netdev_ops->ndo_open(dev); + + netdev_info(dev, "Setting num Tx rings to %d, Rx rings to %d success\n", + pfvf->hw.tx_queues, pfvf->hw.rx_queues); + + return err; +} + +static void otx2_get_pauseparam(struct net_device *netdev, + struct ethtool_pauseparam *pause) +{ + struct otx2_nic *pfvf = netdev_priv(netdev); + struct cgx_pause_frm_cfg *req, *rsp; + + if (is_otx2_lbkvf(pfvf->pdev)) + return; + + mutex_lock(&pfvf->mbox.lock); + req = otx2_mbox_alloc_msg_cgx_cfg_pause_frm(&pfvf->mbox); + if (!req) { + mutex_unlock(&pfvf->mbox.lock); + return; + } + + if (!otx2_sync_mbox_msg(&pfvf->mbox)) { + rsp = (struct cgx_pause_frm_cfg *) + otx2_mbox_get_rsp(&pfvf->mbox.mbox, 0, &req->hdr); + pause->rx_pause = rsp->rx_pause; + pause->tx_pause = rsp->tx_pause; + } + mutex_unlock(&pfvf->mbox.lock); +} + +static int otx2_set_pauseparam(struct net_device *netdev, + struct ethtool_pauseparam *pause) +{ + struct otx2_nic *pfvf = netdev_priv(netdev); + + if (pause->autoneg) + return -EOPNOTSUPP; + + if (is_otx2_lbkvf(pfvf->pdev)) + return -EOPNOTSUPP; + + if (pause->rx_pause) + pfvf->flags |= OTX2_FLAG_RX_PAUSE_ENABLED; + else + pfvf->flags &= ~OTX2_FLAG_RX_PAUSE_ENABLED; + + if (pause->tx_pause) + pfvf->flags |= OTX2_FLAG_TX_PAUSE_ENABLED; + else + pfvf->flags &= ~OTX2_FLAG_TX_PAUSE_ENABLED; + + return otx2_config_pause_frm(pfvf); +} + +static void otx2_get_ringparam(struct net_device *netdev, + struct ethtool_ringparam *ring, + struct kernel_ethtool_ringparam *kernel_ring, + struct netlink_ext_ack *extack) +{ + struct otx2_nic *pfvf = netdev_priv(netdev); + struct otx2_qset *qs = &pfvf->qset; + + ring->rx_max_pending = Q_COUNT(Q_SIZE_MAX); + ring->rx_pending = qs->rqe_cnt ? qs->rqe_cnt : Q_COUNT(Q_SIZE_256); + ring->tx_max_pending = Q_COUNT(Q_SIZE_MAX); + ring->tx_pending = qs->sqe_cnt ? qs->sqe_cnt : Q_COUNT(Q_SIZE_4K); + kernel_ring->rx_buf_len = pfvf->hw.rbuf_len; + kernel_ring->cqe_size = pfvf->hw.xqe_size; +} + +static int otx2_set_ringparam(struct net_device *netdev, + struct ethtool_ringparam *ring, + struct kernel_ethtool_ringparam *kernel_ring, + struct netlink_ext_ack *extack) +{ + struct otx2_nic *pfvf = netdev_priv(netdev); + u32 rx_buf_len = kernel_ring->rx_buf_len; + u32 old_rx_buf_len = pfvf->hw.rbuf_len; + u32 xqe_size = kernel_ring->cqe_size; + bool if_up = netif_running(netdev); + struct otx2_qset *qs = &pfvf->qset; + u32 rx_count, tx_count; + + if (ring->rx_mini_pending || ring->rx_jumbo_pending) + return -EINVAL; + + /* Hardware supports max size of 32k for a receive buffer + * and 1536 is typical ethernet frame size. + */ + if (rx_buf_len && (rx_buf_len < 1536 || rx_buf_len > 32768)) { + netdev_err(netdev, + "Receive buffer range is 1536 - 32768"); + return -EINVAL; + } + + if (xqe_size != 128 && xqe_size != 512) { + netdev_err(netdev, + "Completion event size must be 128 or 512"); + return -EINVAL; + } + + /* Permitted lengths are 16 64 256 1K 4K 16K 64K 256K 1M */ + rx_count = ring->rx_pending; + /* On some silicon variants a skid or reserved CQEs are + * needed to avoid CQ overflow. + */ + if (rx_count < pfvf->hw.rq_skid) + rx_count = pfvf->hw.rq_skid; + rx_count = Q_COUNT(Q_SIZE(rx_count, 3)); + + /* Due pipelining impact minimum 2000 unused SQ CQE's + * need to be maintained to avoid CQ overflow, hence the + * minimum 4K size. + */ + tx_count = clamp_t(u32, ring->tx_pending, + Q_COUNT(Q_SIZE_4K), Q_COUNT(Q_SIZE_MAX)); + tx_count = Q_COUNT(Q_SIZE(tx_count, 3)); + + if (tx_count == qs->sqe_cnt && rx_count == qs->rqe_cnt && + rx_buf_len == old_rx_buf_len && xqe_size == pfvf->hw.xqe_size) + return 0; + + if (if_up) + netdev->netdev_ops->ndo_stop(netdev); + + /* Assigned to the nearest possible exponent. */ + qs->sqe_cnt = tx_count; + qs->rqe_cnt = rx_count; + + pfvf->hw.rbuf_len = rx_buf_len; + pfvf->hw.xqe_size = xqe_size; + + if (if_up) + return netdev->netdev_ops->ndo_open(netdev); + + return 0; +} + +static int otx2_get_coalesce(struct net_device *netdev, + struct ethtool_coalesce *cmd, + struct kernel_ethtool_coalesce *kernel_coal, + struct netlink_ext_ack *extack) +{ + struct otx2_nic *pfvf = netdev_priv(netdev); + struct otx2_hw *hw = &pfvf->hw; + + cmd->rx_coalesce_usecs = hw->cq_time_wait; + cmd->rx_max_coalesced_frames = hw->cq_ecount_wait; + cmd->tx_coalesce_usecs = hw->cq_time_wait; + cmd->tx_max_coalesced_frames = hw->cq_ecount_wait; + if ((pfvf->flags & OTX2_FLAG_ADPTV_INT_COAL_ENABLED) == + OTX2_FLAG_ADPTV_INT_COAL_ENABLED) { + cmd->use_adaptive_rx_coalesce = 1; + cmd->use_adaptive_tx_coalesce = 1; + } else { + cmd->use_adaptive_rx_coalesce = 0; + cmd->use_adaptive_tx_coalesce = 0; + } + + return 0; +} + +static int otx2_set_coalesce(struct net_device *netdev, + struct ethtool_coalesce *ec, + struct kernel_ethtool_coalesce *kernel_coal, + struct netlink_ext_ack *extack) +{ + struct otx2_nic *pfvf = netdev_priv(netdev); + struct otx2_hw *hw = &pfvf->hw; + u8 priv_coalesce_status; + int qidx; + + if (!ec->rx_max_coalesced_frames || !ec->tx_max_coalesced_frames) + return 0; + + if (ec->use_adaptive_rx_coalesce != ec->use_adaptive_tx_coalesce) { + netdev_err(netdev, + "adaptive-rx should be same as adaptive-tx"); + return -EINVAL; + } + + /* Check and update coalesce status */ + if ((pfvf->flags & OTX2_FLAG_ADPTV_INT_COAL_ENABLED) == + OTX2_FLAG_ADPTV_INT_COAL_ENABLED) { + priv_coalesce_status = 1; + if (!ec->use_adaptive_rx_coalesce) + pfvf->flags &= ~OTX2_FLAG_ADPTV_INT_COAL_ENABLED; + } else { + priv_coalesce_status = 0; + if (ec->use_adaptive_rx_coalesce) + pfvf->flags |= OTX2_FLAG_ADPTV_INT_COAL_ENABLED; + } + + /* 'cq_time_wait' is 8bit and is in multiple of 100ns, + * so clamp the user given value to the range of 1 to 25usec. + */ + ec->rx_coalesce_usecs = clamp_t(u32, ec->rx_coalesce_usecs, + 1, CQ_TIMER_THRESH_MAX); + ec->tx_coalesce_usecs = clamp_t(u32, ec->tx_coalesce_usecs, + 1, CQ_TIMER_THRESH_MAX); + + /* Rx and Tx are mapped to same CQ, check which one + * is changed, if both then choose the min. + */ + if (hw->cq_time_wait == ec->rx_coalesce_usecs) + hw->cq_time_wait = ec->tx_coalesce_usecs; + else if (hw->cq_time_wait == ec->tx_coalesce_usecs) + hw->cq_time_wait = ec->rx_coalesce_usecs; + else + hw->cq_time_wait = min_t(u8, ec->rx_coalesce_usecs, + ec->tx_coalesce_usecs); + + /* Max ecount_wait supported is 16bit, + * so clamp the user given value to the range of 1 to 64k. + */ + ec->rx_max_coalesced_frames = clamp_t(u32, ec->rx_max_coalesced_frames, + 1, NAPI_POLL_WEIGHT); + ec->tx_max_coalesced_frames = clamp_t(u32, ec->tx_max_coalesced_frames, + 1, NAPI_POLL_WEIGHT); + + /* Rx and Tx are mapped to same CQ, check which one + * is changed, if both then choose the min. + */ + if (hw->cq_ecount_wait == ec->rx_max_coalesced_frames) + hw->cq_ecount_wait = ec->tx_max_coalesced_frames; + else if (hw->cq_ecount_wait == ec->tx_max_coalesced_frames) + hw->cq_ecount_wait = ec->rx_max_coalesced_frames; + else + hw->cq_ecount_wait = min_t(u16, ec->rx_max_coalesced_frames, + ec->tx_max_coalesced_frames); + + /* Reset 'cq_time_wait' and 'cq_ecount_wait' to + * default values if coalesce status changed from + * 'on' to 'off'. + */ + if (priv_coalesce_status && + ((pfvf->flags & OTX2_FLAG_ADPTV_INT_COAL_ENABLED) != + OTX2_FLAG_ADPTV_INT_COAL_ENABLED)) { + hw->cq_time_wait = CQ_TIMER_THRESH_DEFAULT; + hw->cq_ecount_wait = CQ_CQE_THRESH_DEFAULT; + } + + if (netif_running(netdev)) { + for (qidx = 0; qidx < pfvf->hw.cint_cnt; qidx++) + otx2_config_irq_coalescing(pfvf, qidx); + } + + return 0; +} + +static int otx2_get_rss_hash_opts(struct otx2_nic *pfvf, + struct ethtool_rxnfc *nfc) +{ + struct otx2_rss_info *rss = &pfvf->hw.rss_info; + + if (!(rss->flowkey_cfg & + (NIX_FLOW_KEY_TYPE_IPV4 | NIX_FLOW_KEY_TYPE_IPV6))) + return 0; + + /* Mimimum is IPv4 and IPv6, SIP/DIP */ + nfc->data = RXH_IP_SRC | RXH_IP_DST; + if (rss->flowkey_cfg & NIX_FLOW_KEY_TYPE_VLAN) + nfc->data |= RXH_VLAN; + + switch (nfc->flow_type) { + case TCP_V4_FLOW: + case TCP_V6_FLOW: + if (rss->flowkey_cfg & NIX_FLOW_KEY_TYPE_TCP) + nfc->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3; + break; + case UDP_V4_FLOW: + case UDP_V6_FLOW: + if (rss->flowkey_cfg & NIX_FLOW_KEY_TYPE_UDP) + nfc->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3; + break; + case SCTP_V4_FLOW: + case SCTP_V6_FLOW: + if (rss->flowkey_cfg & NIX_FLOW_KEY_TYPE_SCTP) + nfc->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3; + break; + case AH_ESP_V4_FLOW: + case AH_ESP_V6_FLOW: + if (rss->flowkey_cfg & NIX_FLOW_KEY_TYPE_ESP) + nfc->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3; + break; + case AH_V4_FLOW: + case ESP_V4_FLOW: + case IPV4_FLOW: + break; + case AH_V6_FLOW: + case ESP_V6_FLOW: + case IPV6_FLOW: + break; + default: + return -EINVAL; + } + + return 0; +} + +static int otx2_set_rss_hash_opts(struct otx2_nic *pfvf, + struct ethtool_rxnfc *nfc) +{ + struct otx2_rss_info *rss = &pfvf->hw.rss_info; + u32 rxh_l4 = RXH_L4_B_0_1 | RXH_L4_B_2_3; + u32 rss_cfg = rss->flowkey_cfg; + + if (!rss->enable) { + netdev_err(pfvf->netdev, + "RSS is disabled, cannot change settings\n"); + return -EIO; + } + + /* Mimimum is IPv4 and IPv6, SIP/DIP */ + if (!(nfc->data & RXH_IP_SRC) || !(nfc->data & RXH_IP_DST)) + return -EINVAL; + + if (nfc->data & RXH_VLAN) + rss_cfg |= NIX_FLOW_KEY_TYPE_VLAN; + else + rss_cfg &= ~NIX_FLOW_KEY_TYPE_VLAN; + + switch (nfc->flow_type) { + case TCP_V4_FLOW: + case TCP_V6_FLOW: + /* Different config for v4 and v6 is not supported. + * Both of them have to be either 4-tuple or 2-tuple. + */ + switch (nfc->data & rxh_l4) { + case 0: + rss_cfg &= ~NIX_FLOW_KEY_TYPE_TCP; + break; + case (RXH_L4_B_0_1 | RXH_L4_B_2_3): + rss_cfg |= NIX_FLOW_KEY_TYPE_TCP; + break; + default: + return -EINVAL; + } + break; + case UDP_V4_FLOW: + case UDP_V6_FLOW: + switch (nfc->data & rxh_l4) { + case 0: + rss_cfg &= ~NIX_FLOW_KEY_TYPE_UDP; + break; + case (RXH_L4_B_0_1 | RXH_L4_B_2_3): + rss_cfg |= NIX_FLOW_KEY_TYPE_UDP; + break; + default: + return -EINVAL; + } + break; + case SCTP_V4_FLOW: + case SCTP_V6_FLOW: + switch (nfc->data & rxh_l4) { + case 0: + rss_cfg &= ~NIX_FLOW_KEY_TYPE_SCTP; + break; + case (RXH_L4_B_0_1 | RXH_L4_B_2_3): + rss_cfg |= NIX_FLOW_KEY_TYPE_SCTP; + break; + default: + return -EINVAL; + } + break; + case AH_ESP_V4_FLOW: + case AH_ESP_V6_FLOW: + switch (nfc->data & rxh_l4) { + case 0: + rss_cfg &= ~(NIX_FLOW_KEY_TYPE_ESP | + NIX_FLOW_KEY_TYPE_AH); + rss_cfg |= NIX_FLOW_KEY_TYPE_VLAN | + NIX_FLOW_KEY_TYPE_IPV4_PROTO; + break; + case (RXH_L4_B_0_1 | RXH_L4_B_2_3): + /* If VLAN hashing is also requested for ESP then do not + * allow because of hardware 40 bytes flow key limit. + */ + if (rss_cfg & NIX_FLOW_KEY_TYPE_VLAN) { + netdev_err(pfvf->netdev, + "RSS hash of ESP or AH with VLAN is not supported\n"); + return -EOPNOTSUPP; + } + + rss_cfg |= NIX_FLOW_KEY_TYPE_ESP | NIX_FLOW_KEY_TYPE_AH; + /* Disable IPv4 proto hashing since IPv6 SA+DA(32 bytes) + * and ESP SPI+sequence(8 bytes) uses hardware maximum + * limit of 40 byte flow key. + */ + rss_cfg &= ~NIX_FLOW_KEY_TYPE_IPV4_PROTO; + break; + default: + return -EINVAL; + } + break; + case IPV4_FLOW: + case IPV6_FLOW: + rss_cfg = NIX_FLOW_KEY_TYPE_IPV4 | NIX_FLOW_KEY_TYPE_IPV6; + break; + default: + return -EINVAL; + } + + rss->flowkey_cfg = rss_cfg; + otx2_set_flowkey_cfg(pfvf); + return 0; +} + +static int otx2_get_rxnfc(struct net_device *dev, + struct ethtool_rxnfc *nfc, u32 *rules) +{ + bool ntuple = !!(dev->features & NETIF_F_NTUPLE); + struct otx2_nic *pfvf = netdev_priv(dev); + int ret = -EOPNOTSUPP; + + switch (nfc->cmd) { + case ETHTOOL_GRXRINGS: + nfc->data = pfvf->hw.rx_queues; + ret = 0; + break; + case ETHTOOL_GRXCLSRLCNT: + if (netif_running(dev) && ntuple) { + nfc->rule_cnt = pfvf->flow_cfg->nr_flows; + ret = 0; + } + break; + case ETHTOOL_GRXCLSRULE: + if (netif_running(dev) && ntuple) + ret = otx2_get_flow(pfvf, nfc, nfc->fs.location); + break; + case ETHTOOL_GRXCLSRLALL: + if (netif_running(dev) && ntuple) + ret = otx2_get_all_flows(pfvf, nfc, rules); + break; + case ETHTOOL_GRXFH: + return otx2_get_rss_hash_opts(pfvf, nfc); + default: + break; + } + return ret; +} + +static int otx2_set_rxnfc(struct net_device *dev, struct ethtool_rxnfc *nfc) +{ + bool ntuple = !!(dev->features & NETIF_F_NTUPLE); + struct otx2_nic *pfvf = netdev_priv(dev); + int ret = -EOPNOTSUPP; + + pfvf->flow_cfg->ntuple = ntuple; + switch (nfc->cmd) { + case ETHTOOL_SRXFH: + ret = otx2_set_rss_hash_opts(pfvf, nfc); + break; + case ETHTOOL_SRXCLSRLINS: + if (netif_running(dev) && ntuple) + ret = otx2_add_flow(pfvf, nfc); + break; + case ETHTOOL_SRXCLSRLDEL: + if (netif_running(dev) && ntuple) + ret = otx2_remove_flow(pfvf, nfc->fs.location); + break; + default: + break; + } + + return ret; +} + +static u32 otx2_get_rxfh_key_size(struct net_device *netdev) +{ + struct otx2_nic *pfvf = netdev_priv(netdev); + struct otx2_rss_info *rss; + + rss = &pfvf->hw.rss_info; + + return sizeof(rss->key); +} + +static u32 otx2_get_rxfh_indir_size(struct net_device *dev) +{ + return MAX_RSS_INDIR_TBL_SIZE; +} + +static int otx2_rss_ctx_delete(struct otx2_nic *pfvf, int ctx_id) +{ + struct otx2_rss_info *rss = &pfvf->hw.rss_info; + + otx2_rss_ctx_flow_del(pfvf, ctx_id); + kfree(rss->rss_ctx[ctx_id]); + rss->rss_ctx[ctx_id] = NULL; + + return 0; +} + +static int otx2_rss_ctx_create(struct otx2_nic *pfvf, + u32 *rss_context) +{ + struct otx2_rss_info *rss = &pfvf->hw.rss_info; + u8 ctx; + + for (ctx = 0; ctx < MAX_RSS_GROUPS; ctx++) { + if (!rss->rss_ctx[ctx]) + break; + } + if (ctx == MAX_RSS_GROUPS) + return -EINVAL; + + rss->rss_ctx[ctx] = kzalloc(sizeof(*rss->rss_ctx[ctx]), GFP_KERNEL); + if (!rss->rss_ctx[ctx]) + return -ENOMEM; + *rss_context = ctx; + + return 0; +} + +/* RSS context configuration */ +static int otx2_set_rxfh_context(struct net_device *dev, const u32 *indir, + const u8 *hkey, const u8 hfunc, + u32 *rss_context, bool delete) +{ + struct otx2_nic *pfvf = netdev_priv(dev); + struct otx2_rss_ctx *rss_ctx; + struct otx2_rss_info *rss; + int ret, idx; + + if (hfunc != ETH_RSS_HASH_NO_CHANGE && hfunc != ETH_RSS_HASH_TOP) + return -EOPNOTSUPP; + + if (*rss_context != ETH_RXFH_CONTEXT_ALLOC && + *rss_context >= MAX_RSS_GROUPS) + return -EINVAL; + + rss = &pfvf->hw.rss_info; + + if (!rss->enable) { + netdev_err(dev, "RSS is disabled, cannot change settings\n"); + return -EIO; + } + + if (hkey) { + memcpy(rss->key, hkey, sizeof(rss->key)); + otx2_set_rss_key(pfvf); + } + if (delete) + return otx2_rss_ctx_delete(pfvf, *rss_context); + + if (*rss_context == ETH_RXFH_CONTEXT_ALLOC) { + ret = otx2_rss_ctx_create(pfvf, rss_context); + if (ret) + return ret; + } + if (indir) { + rss_ctx = rss->rss_ctx[*rss_context]; + for (idx = 0; idx < rss->rss_size; idx++) + rss_ctx->ind_tbl[idx] = indir[idx]; + } + otx2_set_rss_table(pfvf, *rss_context); + + return 0; +} + +static int otx2_get_rxfh_context(struct net_device *dev, u32 *indir, + u8 *hkey, u8 *hfunc, u32 rss_context) +{ + struct otx2_nic *pfvf = netdev_priv(dev); + struct otx2_rss_ctx *rss_ctx; + struct otx2_rss_info *rss; + int idx, rx_queues; + + rss = &pfvf->hw.rss_info; + + if (hfunc) + *hfunc = ETH_RSS_HASH_TOP; + + if (!indir) + return 0; + + if (!rss->enable && rss_context == DEFAULT_RSS_CONTEXT_GROUP) { + rx_queues = pfvf->hw.rx_queues; + for (idx = 0; idx < MAX_RSS_INDIR_TBL_SIZE; idx++) + indir[idx] = ethtool_rxfh_indir_default(idx, rx_queues); + return 0; + } + if (rss_context >= MAX_RSS_GROUPS) + return -ENOENT; + + rss_ctx = rss->rss_ctx[rss_context]; + if (!rss_ctx) + return -ENOENT; + + if (indir) { + for (idx = 0; idx < rss->rss_size; idx++) + indir[idx] = rss_ctx->ind_tbl[idx]; + } + if (hkey) + memcpy(hkey, rss->key, sizeof(rss->key)); + + return 0; +} + +/* Get RSS configuration */ +static int otx2_get_rxfh(struct net_device *dev, u32 *indir, + u8 *hkey, u8 *hfunc) +{ + return otx2_get_rxfh_context(dev, indir, hkey, hfunc, + DEFAULT_RSS_CONTEXT_GROUP); +} + +/* Configure RSS table and hash key */ +static int otx2_set_rxfh(struct net_device *dev, const u32 *indir, + const u8 *hkey, const u8 hfunc) +{ + + u32 rss_context = DEFAULT_RSS_CONTEXT_GROUP; + + return otx2_set_rxfh_context(dev, indir, hkey, hfunc, &rss_context, 0); +} + +static u32 otx2_get_msglevel(struct net_device *netdev) +{ + struct otx2_nic *pfvf = netdev_priv(netdev); + + return pfvf->msg_enable; +} + +static void otx2_set_msglevel(struct net_device *netdev, u32 val) +{ + struct otx2_nic *pfvf = netdev_priv(netdev); + + pfvf->msg_enable = val; +} + +static u32 otx2_get_link(struct net_device *netdev) +{ + struct otx2_nic *pfvf = netdev_priv(netdev); + + /* LBK link is internal and always UP */ + if (is_otx2_lbkvf(pfvf->pdev)) + return 1; + return pfvf->linfo.link_up; +} + +static int otx2_get_ts_info(struct net_device *netdev, + struct ethtool_ts_info *info) +{ + struct otx2_nic *pfvf = netdev_priv(netdev); + + if (!pfvf->ptp) + return ethtool_op_get_ts_info(netdev, info); + + info->so_timestamping = SOF_TIMESTAMPING_TX_SOFTWARE | + SOF_TIMESTAMPING_RX_SOFTWARE | + SOF_TIMESTAMPING_SOFTWARE | + SOF_TIMESTAMPING_TX_HARDWARE | + SOF_TIMESTAMPING_RX_HARDWARE | + SOF_TIMESTAMPING_RAW_HARDWARE; + + info->phc_index = otx2_ptp_clock_index(pfvf); + + info->tx_types = BIT(HWTSTAMP_TX_OFF) | BIT(HWTSTAMP_TX_ON); + if (test_bit(CN10K_PTP_ONESTEP, &pfvf->hw.cap_flag)) + info->tx_types |= BIT(HWTSTAMP_TX_ONESTEP_SYNC); + + info->rx_filters = BIT(HWTSTAMP_FILTER_NONE) | + BIT(HWTSTAMP_FILTER_ALL); + + return 0; +} + +static struct cgx_fw_data *otx2_get_fwdata(struct otx2_nic *pfvf) +{ + struct cgx_fw_data *rsp = NULL; + struct msg_req *req; + int err = 0; + + mutex_lock(&pfvf->mbox.lock); + req = otx2_mbox_alloc_msg_cgx_get_aux_link_info(&pfvf->mbox); + if (!req) { + mutex_unlock(&pfvf->mbox.lock); + return ERR_PTR(-ENOMEM); + } + + err = otx2_sync_mbox_msg(&pfvf->mbox); + if (!err) { + rsp = (struct cgx_fw_data *) + otx2_mbox_get_rsp(&pfvf->mbox.mbox, 0, &req->hdr); + } else { + rsp = ERR_PTR(err); + } + + mutex_unlock(&pfvf->mbox.lock); + return rsp; +} + +static int otx2_get_fecparam(struct net_device *netdev, + struct ethtool_fecparam *fecparam) +{ + struct otx2_nic *pfvf = netdev_priv(netdev); + struct cgx_fw_data *rsp; + const int fec[] = { + ETHTOOL_FEC_OFF, + ETHTOOL_FEC_BASER, + ETHTOOL_FEC_RS, + ETHTOOL_FEC_BASER | ETHTOOL_FEC_RS}; +#define FEC_MAX_INDEX 4 + if (pfvf->linfo.fec < FEC_MAX_INDEX) + fecparam->active_fec = fec[pfvf->linfo.fec]; + + rsp = otx2_get_fwdata(pfvf); + if (IS_ERR(rsp)) + return PTR_ERR(rsp); + + if (rsp->fwdata.supported_fec < FEC_MAX_INDEX) { + if (!rsp->fwdata.supported_fec) + fecparam->fec = ETHTOOL_FEC_NONE; + else + fecparam->fec = fec[rsp->fwdata.supported_fec]; + } + return 0; +} + +static int otx2_set_fecparam(struct net_device *netdev, + struct ethtool_fecparam *fecparam) +{ + struct otx2_nic *pfvf = netdev_priv(netdev); + struct mbox *mbox = &pfvf->mbox; + struct fec_mode *req, *rsp; + int err = 0, fec = 0; + + switch (fecparam->fec) { + /* Firmware does not support AUTO mode consider it as FEC_OFF */ + case ETHTOOL_FEC_OFF: + case ETHTOOL_FEC_AUTO: + fec = OTX2_FEC_OFF; + break; + case ETHTOOL_FEC_RS: + fec = OTX2_FEC_RS; + break; + case ETHTOOL_FEC_BASER: + fec = OTX2_FEC_BASER; + break; + default: + netdev_warn(pfvf->netdev, "Unsupported FEC mode: %d", + fecparam->fec); + return -EINVAL; + } + + if (fec == pfvf->linfo.fec) + return 0; + + mutex_lock(&mbox->lock); + req = otx2_mbox_alloc_msg_cgx_set_fec_param(&pfvf->mbox); + if (!req) { + err = -ENOMEM; + goto end; + } + req->fec = fec; + err = otx2_sync_mbox_msg(&pfvf->mbox); + if (err) + goto end; + + rsp = (struct fec_mode *)otx2_mbox_get_rsp(&pfvf->mbox.mbox, + 0, &req->hdr); + if (rsp->fec >= 0) + pfvf->linfo.fec = rsp->fec; + else + err = rsp->fec; +end: + mutex_unlock(&mbox->lock); + return err; +} + +static void otx2_get_fec_info(u64 index, int req_mode, + struct ethtool_link_ksettings *link_ksettings) +{ + __ETHTOOL_DECLARE_LINK_MODE_MASK(otx2_fec_modes) = { 0, }; + + switch (index) { + case OTX2_FEC_NONE: + linkmode_set_bit(ETHTOOL_LINK_MODE_FEC_NONE_BIT, + otx2_fec_modes); + break; + case OTX2_FEC_BASER: + linkmode_set_bit(ETHTOOL_LINK_MODE_FEC_BASER_BIT, + otx2_fec_modes); + break; + case OTX2_FEC_RS: + linkmode_set_bit(ETHTOOL_LINK_MODE_FEC_RS_BIT, + otx2_fec_modes); + break; + case OTX2_FEC_BASER | OTX2_FEC_RS: + linkmode_set_bit(ETHTOOL_LINK_MODE_FEC_BASER_BIT, + otx2_fec_modes); + linkmode_set_bit(ETHTOOL_LINK_MODE_FEC_RS_BIT, + otx2_fec_modes); + break; + } + + /* Add fec modes to existing modes */ + if (req_mode == OTX2_MODE_ADVERTISED) + linkmode_or(link_ksettings->link_modes.advertising, + link_ksettings->link_modes.advertising, + otx2_fec_modes); + else + linkmode_or(link_ksettings->link_modes.supported, + link_ksettings->link_modes.supported, + otx2_fec_modes); +} + +static void otx2_get_link_mode_info(u64 link_mode_bmap, + bool req_mode, + struct ethtool_link_ksettings + *link_ksettings) +{ + __ETHTOOL_DECLARE_LINK_MODE_MASK(otx2_link_modes) = { 0, }; + const int otx2_sgmii_features[6] = { + ETHTOOL_LINK_MODE_10baseT_Half_BIT, + ETHTOOL_LINK_MODE_10baseT_Full_BIT, + ETHTOOL_LINK_MODE_100baseT_Half_BIT, + ETHTOOL_LINK_MODE_100baseT_Full_BIT, + ETHTOOL_LINK_MODE_1000baseT_Half_BIT, + ETHTOOL_LINK_MODE_1000baseT_Full_BIT, + }; + /* CGX link modes to Ethtool link mode mapping */ + const int cgx_link_mode[27] = { + 0, /* SGMII Mode */ + ETHTOOL_LINK_MODE_1000baseX_Full_BIT, + ETHTOOL_LINK_MODE_10000baseT_Full_BIT, + ETHTOOL_LINK_MODE_10000baseSR_Full_BIT, + ETHTOOL_LINK_MODE_10000baseLR_Full_BIT, + ETHTOOL_LINK_MODE_10000baseKR_Full_BIT, + 0, + ETHTOOL_LINK_MODE_25000baseSR_Full_BIT, + 0, + 0, + ETHTOOL_LINK_MODE_25000baseCR_Full_BIT, + ETHTOOL_LINK_MODE_25000baseKR_Full_BIT, + ETHTOOL_LINK_MODE_40000baseSR4_Full_BIT, + ETHTOOL_LINK_MODE_40000baseLR4_Full_BIT, + ETHTOOL_LINK_MODE_40000baseCR4_Full_BIT, + ETHTOOL_LINK_MODE_40000baseKR4_Full_BIT, + 0, + ETHTOOL_LINK_MODE_50000baseSR_Full_BIT, + 0, + ETHTOOL_LINK_MODE_50000baseLR_ER_FR_Full_BIT, + ETHTOOL_LINK_MODE_50000baseCR_Full_BIT, + ETHTOOL_LINK_MODE_50000baseKR_Full_BIT, + 0, + ETHTOOL_LINK_MODE_100000baseSR4_Full_BIT, + ETHTOOL_LINK_MODE_100000baseLR4_ER4_Full_BIT, + ETHTOOL_LINK_MODE_100000baseCR4_Full_BIT, + ETHTOOL_LINK_MODE_100000baseKR4_Full_BIT + }; + u8 bit; + + for_each_set_bit(bit, (unsigned long *)&link_mode_bmap, 27) { + /* SGMII mode is set */ + if (bit == 0) + linkmode_set_bit_array(otx2_sgmii_features, + ARRAY_SIZE(otx2_sgmii_features), + otx2_link_modes); + else + linkmode_set_bit(cgx_link_mode[bit], otx2_link_modes); + } + + if (req_mode == OTX2_MODE_ADVERTISED) + linkmode_copy(link_ksettings->link_modes.advertising, + otx2_link_modes); + else + linkmode_copy(link_ksettings->link_modes.supported, + otx2_link_modes); +} + +static int otx2_get_link_ksettings(struct net_device *netdev, + struct ethtool_link_ksettings *cmd) +{ + struct otx2_nic *pfvf = netdev_priv(netdev); + struct cgx_fw_data *rsp = NULL; + + cmd->base.duplex = pfvf->linfo.full_duplex; + cmd->base.speed = pfvf->linfo.speed; + cmd->base.autoneg = pfvf->linfo.an; + + rsp = otx2_get_fwdata(pfvf); + if (IS_ERR(rsp)) + return PTR_ERR(rsp); + + if (rsp->fwdata.supported_an) + ethtool_link_ksettings_add_link_mode(cmd, + supported, + Autoneg); + + otx2_get_link_mode_info(rsp->fwdata.advertised_link_modes, + OTX2_MODE_ADVERTISED, cmd); + otx2_get_fec_info(rsp->fwdata.advertised_fec, + OTX2_MODE_ADVERTISED, cmd); + otx2_get_link_mode_info(rsp->fwdata.supported_link_modes, + OTX2_MODE_SUPPORTED, cmd); + otx2_get_fec_info(rsp->fwdata.supported_fec, + OTX2_MODE_SUPPORTED, cmd); + return 0; +} + +static void otx2_get_advertised_mode(const struct ethtool_link_ksettings *cmd, + u64 *mode) +{ + u32 bit_pos; + + /* Firmware does not support requesting multiple advertised modes + * return first set bit + */ + bit_pos = find_first_bit(cmd->link_modes.advertising, + __ETHTOOL_LINK_MODE_MASK_NBITS); + if (bit_pos != __ETHTOOL_LINK_MODE_MASK_NBITS) + *mode = bit_pos; +} + +static int otx2_set_link_ksettings(struct net_device *netdev, + const struct ethtool_link_ksettings *cmd) +{ + struct otx2_nic *pf = netdev_priv(netdev); + struct ethtool_link_ksettings cur_ks; + struct cgx_set_link_mode_req *req; + struct mbox *mbox = &pf->mbox; + int err = 0; + + memset(&cur_ks, 0, sizeof(struct ethtool_link_ksettings)); + + if (!ethtool_validate_speed(cmd->base.speed) || + !ethtool_validate_duplex(cmd->base.duplex)) + return -EINVAL; + + if (cmd->base.autoneg != AUTONEG_ENABLE && + cmd->base.autoneg != AUTONEG_DISABLE) + return -EINVAL; + + otx2_get_link_ksettings(netdev, &cur_ks); + + /* Check requested modes against supported modes by hardware */ + if (!linkmode_subset(cmd->link_modes.advertising, + cur_ks.link_modes.supported)) + return -EINVAL; + + mutex_lock(&mbox->lock); + req = otx2_mbox_alloc_msg_cgx_set_link_mode(&pf->mbox); + if (!req) { + err = -ENOMEM; + goto end; + } + + req->args.speed = cmd->base.speed; + /* firmware expects 1 for half duplex and 0 for full duplex + * hence inverting + */ + req->args.duplex = cmd->base.duplex ^ 0x1; + req->args.an = cmd->base.autoneg; + otx2_get_advertised_mode(cmd, &req->args.mode); + + err = otx2_sync_mbox_msg(&pf->mbox); +end: + mutex_unlock(&mbox->lock); + return err; +} + +static const struct ethtool_ops otx2_ethtool_ops = { + .supported_coalesce_params = ETHTOOL_COALESCE_USECS | + ETHTOOL_COALESCE_MAX_FRAMES | + ETHTOOL_COALESCE_USE_ADAPTIVE, + .supported_ring_params = ETHTOOL_RING_USE_RX_BUF_LEN | + ETHTOOL_RING_USE_CQE_SIZE, + .get_link = otx2_get_link, + .get_drvinfo = otx2_get_drvinfo, + .get_strings = otx2_get_strings, + .get_ethtool_stats = otx2_get_ethtool_stats, + .get_sset_count = otx2_get_sset_count, + .set_channels = otx2_set_channels, + .get_channels = otx2_get_channels, + .get_ringparam = otx2_get_ringparam, + .set_ringparam = otx2_set_ringparam, + .get_coalesce = otx2_get_coalesce, + .set_coalesce = otx2_set_coalesce, + .get_rxnfc = otx2_get_rxnfc, + .set_rxnfc = otx2_set_rxnfc, + .get_rxfh_key_size = otx2_get_rxfh_key_size, + .get_rxfh_indir_size = otx2_get_rxfh_indir_size, + .get_rxfh = otx2_get_rxfh, + .set_rxfh = otx2_set_rxfh, + .get_rxfh_context = otx2_get_rxfh_context, + .set_rxfh_context = otx2_set_rxfh_context, + .get_msglevel = otx2_get_msglevel, + .set_msglevel = otx2_set_msglevel, + .get_pauseparam = otx2_get_pauseparam, + .set_pauseparam = otx2_set_pauseparam, + .get_ts_info = otx2_get_ts_info, + .get_fecparam = otx2_get_fecparam, + .set_fecparam = otx2_set_fecparam, + .get_link_ksettings = otx2_get_link_ksettings, + .set_link_ksettings = otx2_set_link_ksettings, +}; + +void otx2_set_ethtool_ops(struct net_device *netdev) +{ + netdev->ethtool_ops = &otx2_ethtool_ops; +} + +/* VF's ethtool APIs */ +static void otx2vf_get_drvinfo(struct net_device *netdev, + struct ethtool_drvinfo *info) +{ + struct otx2_nic *vf = netdev_priv(netdev); + + strscpy(info->driver, DRV_VF_NAME, sizeof(info->driver)); + strscpy(info->bus_info, pci_name(vf->pdev), sizeof(info->bus_info)); +} + +static void otx2vf_get_strings(struct net_device *netdev, u32 sset, u8 *data) +{ + struct otx2_nic *vf = netdev_priv(netdev); + int stats; + + if (sset != ETH_SS_STATS) + return; + + for (stats = 0; stats < otx2_n_dev_stats; stats++) { + memcpy(data, otx2_dev_stats[stats].name, ETH_GSTRING_LEN); + data += ETH_GSTRING_LEN; + } + + for (stats = 0; stats < otx2_n_drv_stats; stats++) { + memcpy(data, otx2_drv_stats[stats].name, ETH_GSTRING_LEN); + data += ETH_GSTRING_LEN; + } + + otx2_get_qset_strings(vf, &data, 0); + + strcpy(data, "reset_count"); + data += ETH_GSTRING_LEN; +} + +static void otx2vf_get_ethtool_stats(struct net_device *netdev, + struct ethtool_stats *stats, u64 *data) +{ + struct otx2_nic *vf = netdev_priv(netdev); + int stat; + + otx2_get_dev_stats(vf); + for (stat = 0; stat < otx2_n_dev_stats; stat++) + *(data++) = ((u64 *)&vf->hw.dev_stats) + [otx2_dev_stats[stat].index]; + + for (stat = 0; stat < otx2_n_drv_stats; stat++) + *(data++) = atomic_read(&((atomic_t *)&vf->hw.drv_stats) + [otx2_drv_stats[stat].index]); + + otx2_get_qset_stats(vf, stats, &data); + *(data++) = vf->reset_count; +} + +static int otx2vf_get_sset_count(struct net_device *netdev, int sset) +{ + struct otx2_nic *vf = netdev_priv(netdev); + int qstats_count; + + if (sset != ETH_SS_STATS) + return -EINVAL; + + qstats_count = otx2_n_queue_stats * + (vf->hw.rx_queues + vf->hw.tx_queues); + + return otx2_n_dev_stats + otx2_n_drv_stats + qstats_count + 1; +} + +static int otx2vf_get_link_ksettings(struct net_device *netdev, + struct ethtool_link_ksettings *cmd) +{ + struct otx2_nic *pfvf = netdev_priv(netdev); + + if (is_otx2_lbkvf(pfvf->pdev)) { + cmd->base.duplex = DUPLEX_FULL; + cmd->base.speed = SPEED_100000; + } else { + return otx2_get_link_ksettings(netdev, cmd); + } + return 0; +} + +static const struct ethtool_ops otx2vf_ethtool_ops = { + .supported_coalesce_params = ETHTOOL_COALESCE_USECS | + ETHTOOL_COALESCE_MAX_FRAMES | + ETHTOOL_COALESCE_USE_ADAPTIVE, + .supported_ring_params = ETHTOOL_RING_USE_RX_BUF_LEN | + ETHTOOL_RING_USE_CQE_SIZE, + .get_link = otx2_get_link, + .get_drvinfo = otx2vf_get_drvinfo, + .get_strings = otx2vf_get_strings, + .get_ethtool_stats = otx2vf_get_ethtool_stats, + .get_sset_count = otx2vf_get_sset_count, + .set_channels = otx2_set_channels, + .get_channels = otx2_get_channels, + .get_rxnfc = otx2_get_rxnfc, + .set_rxnfc = otx2_set_rxnfc, + .get_rxfh_key_size = otx2_get_rxfh_key_size, + .get_rxfh_indir_size = otx2_get_rxfh_indir_size, + .get_rxfh = otx2_get_rxfh, + .set_rxfh = otx2_set_rxfh, + .get_rxfh_context = otx2_get_rxfh_context, + .set_rxfh_context = otx2_set_rxfh_context, + .get_ringparam = otx2_get_ringparam, + .set_ringparam = otx2_set_ringparam, + .get_coalesce = otx2_get_coalesce, + .set_coalesce = otx2_set_coalesce, + .get_msglevel = otx2_get_msglevel, + .set_msglevel = otx2_set_msglevel, + .get_pauseparam = otx2_get_pauseparam, + .set_pauseparam = otx2_set_pauseparam, + .get_link_ksettings = otx2vf_get_link_ksettings, + .get_ts_info = otx2_get_ts_info, +}; + +void otx2vf_set_ethtool_ops(struct net_device *netdev) +{ + netdev->ethtool_ops = &otx2vf_ethtool_ops; +} +EXPORT_SYMBOL(otx2vf_set_ethtool_ops); diff --git a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_flows.c b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_flows.c new file mode 100644 index 000000000..5c7575083 --- /dev/null +++ b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_flows.c @@ -0,0 +1,1500 @@ +// SPDX-License-Identifier: GPL-2.0 +/* Marvell RVU Ethernet driver + * + * Copyright (C) 2020 Marvell. + * + */ + +#include <net/ipv6.h> +#include <linux/sort.h> + +#include "otx2_common.h" + +#define OTX2_DEFAULT_ACTION 0x1 + +static int otx2_mcam_entry_init(struct otx2_nic *pfvf); + +struct otx2_flow { + struct ethtool_rx_flow_spec flow_spec; + struct list_head list; + u32 location; + u32 entry; + bool is_vf; + u8 rss_ctx_id; +#define DMAC_FILTER_RULE BIT(0) +#define PFC_FLOWCTRL_RULE BIT(1) + u16 rule_type; + int vf; +}; + +enum dmac_req { + DMAC_ADDR_UPDATE, + DMAC_ADDR_DEL +}; + +static void otx2_clear_ntuple_flow_info(struct otx2_nic *pfvf, struct otx2_flow_config *flow_cfg) +{ + devm_kfree(pfvf->dev, flow_cfg->flow_ent); + flow_cfg->flow_ent = NULL; + flow_cfg->max_flows = 0; +} + +static int otx2_free_ntuple_mcam_entries(struct otx2_nic *pfvf) +{ + struct otx2_flow_config *flow_cfg = pfvf->flow_cfg; + struct npc_mcam_free_entry_req *req; + int ent, err; + + if (!flow_cfg->max_flows) + return 0; + + mutex_lock(&pfvf->mbox.lock); + for (ent = 0; ent < flow_cfg->max_flows; ent++) { + req = otx2_mbox_alloc_msg_npc_mcam_free_entry(&pfvf->mbox); + if (!req) + break; + + req->entry = flow_cfg->flow_ent[ent]; + + /* Send message to AF to free MCAM entries */ + err = otx2_sync_mbox_msg(&pfvf->mbox); + if (err) + break; + } + mutex_unlock(&pfvf->mbox.lock); + otx2_clear_ntuple_flow_info(pfvf, flow_cfg); + return 0; +} + +static int mcam_entry_cmp(const void *a, const void *b) +{ + return *(u16 *)a - *(u16 *)b; +} + +int otx2_alloc_mcam_entries(struct otx2_nic *pfvf, u16 count) +{ + struct otx2_flow_config *flow_cfg = pfvf->flow_cfg; + struct npc_mcam_alloc_entry_req *req; + struct npc_mcam_alloc_entry_rsp *rsp; + int ent, allocated = 0; + + /* Free current ones and allocate new ones with requested count */ + otx2_free_ntuple_mcam_entries(pfvf); + + if (!count) + return 0; + + flow_cfg->flow_ent = devm_kmalloc_array(pfvf->dev, count, + sizeof(u16), GFP_KERNEL); + if (!flow_cfg->flow_ent) { + netdev_err(pfvf->netdev, + "%s: Unable to allocate memory for flow entries\n", + __func__); + return -ENOMEM; + } + + mutex_lock(&pfvf->mbox.lock); + + /* In a single request a max of NPC_MAX_NONCONTIG_ENTRIES MCAM entries + * can only be allocated. + */ + while (allocated < count) { + req = otx2_mbox_alloc_msg_npc_mcam_alloc_entry(&pfvf->mbox); + if (!req) + goto exit; + + req->contig = false; + req->count = (count - allocated) > NPC_MAX_NONCONTIG_ENTRIES ? + NPC_MAX_NONCONTIG_ENTRIES : count - allocated; + + /* Allocate higher priority entries for PFs, so that VF's entries + * will be on top of PF. + */ + if (!is_otx2_vf(pfvf->pcifunc)) { + req->priority = NPC_MCAM_HIGHER_PRIO; + req->ref_entry = flow_cfg->def_ent[0]; + } + + /* Send message to AF */ + if (otx2_sync_mbox_msg(&pfvf->mbox)) + goto exit; + + rsp = (struct npc_mcam_alloc_entry_rsp *)otx2_mbox_get_rsp + (&pfvf->mbox.mbox, 0, &req->hdr); + + for (ent = 0; ent < rsp->count; ent++) + flow_cfg->flow_ent[ent + allocated] = rsp->entry_list[ent]; + + allocated += rsp->count; + + /* If this request is not fulfilled, no need to send + * further requests. + */ + if (rsp->count != req->count) + break; + } + + /* Multiple MCAM entry alloc requests could result in non-sequential + * MCAM entries in the flow_ent[] array. Sort them in an ascending order, + * otherwise user installed ntuple filter index and MCAM entry index will + * not be in sync. + */ + if (allocated) + sort(&flow_cfg->flow_ent[0], allocated, + sizeof(flow_cfg->flow_ent[0]), mcam_entry_cmp, NULL); + +exit: + mutex_unlock(&pfvf->mbox.lock); + + flow_cfg->max_flows = allocated; + + if (allocated) { + pfvf->flags |= OTX2_FLAG_MCAM_ENTRIES_ALLOC; + pfvf->flags |= OTX2_FLAG_NTUPLE_SUPPORT; + } + + if (allocated != count) + netdev_info(pfvf->netdev, + "Unable to allocate %d MCAM entries, got only %d\n", + count, allocated); + return allocated; +} +EXPORT_SYMBOL(otx2_alloc_mcam_entries); + +static int otx2_mcam_entry_init(struct otx2_nic *pfvf) +{ + struct otx2_flow_config *flow_cfg = pfvf->flow_cfg; + struct npc_get_field_status_req *freq; + struct npc_get_field_status_rsp *frsp; + struct npc_mcam_alloc_entry_req *req; + struct npc_mcam_alloc_entry_rsp *rsp; + int vf_vlan_max_flows; + int ent, count; + + vf_vlan_max_flows = pfvf->total_vfs * OTX2_PER_VF_VLAN_FLOWS; + count = OTX2_MAX_UNICAST_FLOWS + + OTX2_MAX_VLAN_FLOWS + vf_vlan_max_flows; + + flow_cfg->def_ent = devm_kmalloc_array(pfvf->dev, count, + sizeof(u16), GFP_KERNEL); + if (!flow_cfg->def_ent) + return -ENOMEM; + + mutex_lock(&pfvf->mbox.lock); + + req = otx2_mbox_alloc_msg_npc_mcam_alloc_entry(&pfvf->mbox); + if (!req) { + mutex_unlock(&pfvf->mbox.lock); + return -ENOMEM; + } + + req->contig = false; + req->count = count; + + /* Send message to AF */ + if (otx2_sync_mbox_msg(&pfvf->mbox)) { + mutex_unlock(&pfvf->mbox.lock); + return -EINVAL; + } + + rsp = (struct npc_mcam_alloc_entry_rsp *)otx2_mbox_get_rsp + (&pfvf->mbox.mbox, 0, &req->hdr); + + if (rsp->count != req->count) { + netdev_info(pfvf->netdev, + "Unable to allocate MCAM entries for ucast, vlan and vf_vlan\n"); + mutex_unlock(&pfvf->mbox.lock); + devm_kfree(pfvf->dev, flow_cfg->def_ent); + return 0; + } + + for (ent = 0; ent < rsp->count; ent++) + flow_cfg->def_ent[ent] = rsp->entry_list[ent]; + + flow_cfg->vf_vlan_offset = 0; + flow_cfg->unicast_offset = vf_vlan_max_flows; + flow_cfg->rx_vlan_offset = flow_cfg->unicast_offset + + OTX2_MAX_UNICAST_FLOWS; + pfvf->flags |= OTX2_FLAG_UCAST_FLTR_SUPPORT; + + /* Check if NPC_DMAC field is supported + * by the mkex profile before setting VLAN support flag. + */ + freq = otx2_mbox_alloc_msg_npc_get_field_status(&pfvf->mbox); + if (!freq) { + mutex_unlock(&pfvf->mbox.lock); + return -ENOMEM; + } + + freq->field = NPC_DMAC; + if (otx2_sync_mbox_msg(&pfvf->mbox)) { + mutex_unlock(&pfvf->mbox.lock); + return -EINVAL; + } + + frsp = (struct npc_get_field_status_rsp *)otx2_mbox_get_rsp + (&pfvf->mbox.mbox, 0, &freq->hdr); + + if (frsp->enable) { + pfvf->flags |= OTX2_FLAG_RX_VLAN_SUPPORT; + pfvf->flags |= OTX2_FLAG_VF_VLAN_SUPPORT; + } + + pfvf->flags |= OTX2_FLAG_MCAM_ENTRIES_ALLOC; + mutex_unlock(&pfvf->mbox.lock); + + /* Allocate entries for Ntuple filters */ + count = otx2_alloc_mcam_entries(pfvf, OTX2_DEFAULT_FLOWCOUNT); + if (count <= 0) { + otx2_clear_ntuple_flow_info(pfvf, flow_cfg); + return 0; + } + + pfvf->flags |= OTX2_FLAG_TC_FLOWER_SUPPORT; + + return 0; +} + +/* TODO : revisit on size */ +#define OTX2_DMAC_FLTR_BITMAP_SZ (4 * 2048 + 32) + +int otx2vf_mcam_flow_init(struct otx2_nic *pfvf) +{ + struct otx2_flow_config *flow_cfg; + + pfvf->flow_cfg = devm_kzalloc(pfvf->dev, + sizeof(struct otx2_flow_config), + GFP_KERNEL); + if (!pfvf->flow_cfg) + return -ENOMEM; + + pfvf->flow_cfg->dmacflt_bmap = devm_kcalloc(pfvf->dev, + BITS_TO_LONGS(OTX2_DMAC_FLTR_BITMAP_SZ), + sizeof(long), GFP_KERNEL); + if (!pfvf->flow_cfg->dmacflt_bmap) + return -ENOMEM; + + flow_cfg = pfvf->flow_cfg; + INIT_LIST_HEAD(&flow_cfg->flow_list); + INIT_LIST_HEAD(&flow_cfg->flow_list_tc); + flow_cfg->max_flows = 0; + + return 0; +} +EXPORT_SYMBOL(otx2vf_mcam_flow_init); + +int otx2_mcam_flow_init(struct otx2_nic *pf) +{ + int err; + + pf->flow_cfg = devm_kzalloc(pf->dev, sizeof(struct otx2_flow_config), + GFP_KERNEL); + if (!pf->flow_cfg) + return -ENOMEM; + + pf->flow_cfg->dmacflt_bmap = devm_kcalloc(pf->dev, + BITS_TO_LONGS(OTX2_DMAC_FLTR_BITMAP_SZ), + sizeof(long), GFP_KERNEL); + if (!pf->flow_cfg->dmacflt_bmap) + return -ENOMEM; + + INIT_LIST_HEAD(&pf->flow_cfg->flow_list); + INIT_LIST_HEAD(&pf->flow_cfg->flow_list_tc); + + /* Allocate bare minimum number of MCAM entries needed for + * unicast and ntuple filters. + */ + err = otx2_mcam_entry_init(pf); + if (err) + return err; + + /* Check if MCAM entries are allocate or not */ + if (!(pf->flags & OTX2_FLAG_UCAST_FLTR_SUPPORT)) + return 0; + + pf->mac_table = devm_kzalloc(pf->dev, sizeof(struct otx2_mac_table) + * OTX2_MAX_UNICAST_FLOWS, GFP_KERNEL); + if (!pf->mac_table) + return -ENOMEM; + + otx2_dmacflt_get_max_cnt(pf); + + /* DMAC filters are not allocated */ + if (!pf->flow_cfg->dmacflt_max_flows) + return 0; + + pf->flow_cfg->bmap_to_dmacindex = + devm_kzalloc(pf->dev, sizeof(u32) * + pf->flow_cfg->dmacflt_max_flows, + GFP_KERNEL); + + if (!pf->flow_cfg->bmap_to_dmacindex) + return -ENOMEM; + + pf->flags |= OTX2_FLAG_DMACFLTR_SUPPORT; + + return 0; +} + +void otx2_mcam_flow_del(struct otx2_nic *pf) +{ + otx2_destroy_mcam_flows(pf); +} +EXPORT_SYMBOL(otx2_mcam_flow_del); + +/* On success adds mcam entry + * On failure enable promisous mode + */ +static int otx2_do_add_macfilter(struct otx2_nic *pf, const u8 *mac) +{ + struct otx2_flow_config *flow_cfg = pf->flow_cfg; + struct npc_install_flow_req *req; + int err, i; + + if (!(pf->flags & OTX2_FLAG_UCAST_FLTR_SUPPORT)) + return -ENOMEM; + + /* dont have free mcam entries or uc list is greater than alloted */ + if (netdev_uc_count(pf->netdev) > OTX2_MAX_UNICAST_FLOWS) + return -ENOMEM; + + mutex_lock(&pf->mbox.lock); + req = otx2_mbox_alloc_msg_npc_install_flow(&pf->mbox); + if (!req) { + mutex_unlock(&pf->mbox.lock); + return -ENOMEM; + } + + /* unicast offset starts with 32 0..31 for ntuple */ + for (i = 0; i < OTX2_MAX_UNICAST_FLOWS; i++) { + if (pf->mac_table[i].inuse) + continue; + ether_addr_copy(pf->mac_table[i].addr, mac); + pf->mac_table[i].inuse = true; + pf->mac_table[i].mcam_entry = + flow_cfg->def_ent[i + flow_cfg->unicast_offset]; + req->entry = pf->mac_table[i].mcam_entry; + break; + } + + ether_addr_copy(req->packet.dmac, mac); + eth_broadcast_addr((u8 *)&req->mask.dmac); + req->features = BIT_ULL(NPC_DMAC); + req->channel = pf->hw.rx_chan_base; + req->intf = NIX_INTF_RX; + req->op = NIX_RX_ACTION_DEFAULT; + req->set_cntr = 1; + + err = otx2_sync_mbox_msg(&pf->mbox); + mutex_unlock(&pf->mbox.lock); + + return err; +} + +int otx2_add_macfilter(struct net_device *netdev, const u8 *mac) +{ + struct otx2_nic *pf = netdev_priv(netdev); + + if (!bitmap_empty(pf->flow_cfg->dmacflt_bmap, + pf->flow_cfg->dmacflt_max_flows)) + netdev_warn(netdev, + "Add %pM to CGX/RPM DMAC filters list as well\n", + mac); + + return otx2_do_add_macfilter(pf, mac); +} + +static bool otx2_get_mcamentry_for_mac(struct otx2_nic *pf, const u8 *mac, + int *mcam_entry) +{ + int i; + + for (i = 0; i < OTX2_MAX_UNICAST_FLOWS; i++) { + if (!pf->mac_table[i].inuse) + continue; + + if (ether_addr_equal(pf->mac_table[i].addr, mac)) { + *mcam_entry = pf->mac_table[i].mcam_entry; + pf->mac_table[i].inuse = false; + return true; + } + } + return false; +} + +int otx2_del_macfilter(struct net_device *netdev, const u8 *mac) +{ + struct otx2_nic *pf = netdev_priv(netdev); + struct npc_delete_flow_req *req; + int err, mcam_entry; + + /* check does mcam entry exists for given mac */ + if (!otx2_get_mcamentry_for_mac(pf, mac, &mcam_entry)) + return 0; + + mutex_lock(&pf->mbox.lock); + req = otx2_mbox_alloc_msg_npc_delete_flow(&pf->mbox); + if (!req) { + mutex_unlock(&pf->mbox.lock); + return -ENOMEM; + } + req->entry = mcam_entry; + /* Send message to AF */ + err = otx2_sync_mbox_msg(&pf->mbox); + mutex_unlock(&pf->mbox.lock); + + return err; +} + +static struct otx2_flow *otx2_find_flow(struct otx2_nic *pfvf, u32 location) +{ + struct otx2_flow *iter; + + list_for_each_entry(iter, &pfvf->flow_cfg->flow_list, list) { + if (iter->location == location) + return iter; + } + + return NULL; +} + +static void otx2_add_flow_to_list(struct otx2_nic *pfvf, struct otx2_flow *flow) +{ + struct list_head *head = &pfvf->flow_cfg->flow_list; + struct otx2_flow *iter; + + list_for_each_entry(iter, &pfvf->flow_cfg->flow_list, list) { + if (iter->location > flow->location) + break; + head = &iter->list; + } + + list_add(&flow->list, head); +} + +int otx2_get_maxflows(struct otx2_flow_config *flow_cfg) +{ + if (!flow_cfg) + return 0; + + if (flow_cfg->nr_flows == flow_cfg->max_flows || + !bitmap_empty(flow_cfg->dmacflt_bmap, + flow_cfg->dmacflt_max_flows)) + return flow_cfg->max_flows + flow_cfg->dmacflt_max_flows; + else + return flow_cfg->max_flows; +} +EXPORT_SYMBOL(otx2_get_maxflows); + +int otx2_get_flow(struct otx2_nic *pfvf, struct ethtool_rxnfc *nfc, + u32 location) +{ + struct otx2_flow *iter; + + if (location >= otx2_get_maxflows(pfvf->flow_cfg)) + return -EINVAL; + + list_for_each_entry(iter, &pfvf->flow_cfg->flow_list, list) { + if (iter->location == location) { + nfc->fs = iter->flow_spec; + nfc->rss_context = iter->rss_ctx_id; + return 0; + } + } + + return -ENOENT; +} + +int otx2_get_all_flows(struct otx2_nic *pfvf, struct ethtool_rxnfc *nfc, + u32 *rule_locs) +{ + u32 rule_cnt = nfc->rule_cnt; + u32 location = 0; + int idx = 0; + int err = 0; + + nfc->data = otx2_get_maxflows(pfvf->flow_cfg); + while ((!err || err == -ENOENT) && idx < rule_cnt) { + err = otx2_get_flow(pfvf, nfc, location); + if (!err) + rule_locs[idx++] = location; + location++; + } + nfc->rule_cnt = rule_cnt; + + return err; +} + +static int otx2_prepare_ipv4_flow(struct ethtool_rx_flow_spec *fsp, + struct npc_install_flow_req *req, + u32 flow_type) +{ + struct ethtool_usrip4_spec *ipv4_usr_mask = &fsp->m_u.usr_ip4_spec; + struct ethtool_usrip4_spec *ipv4_usr_hdr = &fsp->h_u.usr_ip4_spec; + struct ethtool_tcpip4_spec *ipv4_l4_mask = &fsp->m_u.tcp_ip4_spec; + struct ethtool_tcpip4_spec *ipv4_l4_hdr = &fsp->h_u.tcp_ip4_spec; + struct ethtool_ah_espip4_spec *ah_esp_hdr = &fsp->h_u.ah_ip4_spec; + struct ethtool_ah_espip4_spec *ah_esp_mask = &fsp->m_u.ah_ip4_spec; + struct flow_msg *pmask = &req->mask; + struct flow_msg *pkt = &req->packet; + + switch (flow_type) { + case IP_USER_FLOW: + if (ipv4_usr_mask->ip4src) { + memcpy(&pkt->ip4src, &ipv4_usr_hdr->ip4src, + sizeof(pkt->ip4src)); + memcpy(&pmask->ip4src, &ipv4_usr_mask->ip4src, + sizeof(pmask->ip4src)); + req->features |= BIT_ULL(NPC_SIP_IPV4); + } + if (ipv4_usr_mask->ip4dst) { + memcpy(&pkt->ip4dst, &ipv4_usr_hdr->ip4dst, + sizeof(pkt->ip4dst)); + memcpy(&pmask->ip4dst, &ipv4_usr_mask->ip4dst, + sizeof(pmask->ip4dst)); + req->features |= BIT_ULL(NPC_DIP_IPV4); + } + if (ipv4_usr_mask->tos) { + pkt->tos = ipv4_usr_hdr->tos; + pmask->tos = ipv4_usr_mask->tos; + req->features |= BIT_ULL(NPC_TOS); + } + if (ipv4_usr_mask->proto) { + switch (ipv4_usr_hdr->proto) { + case IPPROTO_ICMP: + req->features |= BIT_ULL(NPC_IPPROTO_ICMP); + break; + case IPPROTO_TCP: + req->features |= BIT_ULL(NPC_IPPROTO_TCP); + break; + case IPPROTO_UDP: + req->features |= BIT_ULL(NPC_IPPROTO_UDP); + break; + case IPPROTO_SCTP: + req->features |= BIT_ULL(NPC_IPPROTO_SCTP); + break; + case IPPROTO_AH: + req->features |= BIT_ULL(NPC_IPPROTO_AH); + break; + case IPPROTO_ESP: + req->features |= BIT_ULL(NPC_IPPROTO_ESP); + break; + default: + return -EOPNOTSUPP; + } + } + pkt->etype = cpu_to_be16(ETH_P_IP); + pmask->etype = cpu_to_be16(0xFFFF); + req->features |= BIT_ULL(NPC_ETYPE); + break; + case TCP_V4_FLOW: + case UDP_V4_FLOW: + case SCTP_V4_FLOW: + pkt->etype = cpu_to_be16(ETH_P_IP); + pmask->etype = cpu_to_be16(0xFFFF); + req->features |= BIT_ULL(NPC_ETYPE); + if (ipv4_l4_mask->ip4src) { + memcpy(&pkt->ip4src, &ipv4_l4_hdr->ip4src, + sizeof(pkt->ip4src)); + memcpy(&pmask->ip4src, &ipv4_l4_mask->ip4src, + sizeof(pmask->ip4src)); + req->features |= BIT_ULL(NPC_SIP_IPV4); + } + if (ipv4_l4_mask->ip4dst) { + memcpy(&pkt->ip4dst, &ipv4_l4_hdr->ip4dst, + sizeof(pkt->ip4dst)); + memcpy(&pmask->ip4dst, &ipv4_l4_mask->ip4dst, + sizeof(pmask->ip4dst)); + req->features |= BIT_ULL(NPC_DIP_IPV4); + } + if (ipv4_l4_mask->tos) { + pkt->tos = ipv4_l4_hdr->tos; + pmask->tos = ipv4_l4_mask->tos; + req->features |= BIT_ULL(NPC_TOS); + } + if (ipv4_l4_mask->psrc) { + memcpy(&pkt->sport, &ipv4_l4_hdr->psrc, + sizeof(pkt->sport)); + memcpy(&pmask->sport, &ipv4_l4_mask->psrc, + sizeof(pmask->sport)); + if (flow_type == UDP_V4_FLOW) + req->features |= BIT_ULL(NPC_SPORT_UDP); + else if (flow_type == TCP_V4_FLOW) + req->features |= BIT_ULL(NPC_SPORT_TCP); + else + req->features |= BIT_ULL(NPC_SPORT_SCTP); + } + if (ipv4_l4_mask->pdst) { + memcpy(&pkt->dport, &ipv4_l4_hdr->pdst, + sizeof(pkt->dport)); + memcpy(&pmask->dport, &ipv4_l4_mask->pdst, + sizeof(pmask->dport)); + if (flow_type == UDP_V4_FLOW) + req->features |= BIT_ULL(NPC_DPORT_UDP); + else if (flow_type == TCP_V4_FLOW) + req->features |= BIT_ULL(NPC_DPORT_TCP); + else + req->features |= BIT_ULL(NPC_DPORT_SCTP); + } + if (flow_type == UDP_V4_FLOW) + req->features |= BIT_ULL(NPC_IPPROTO_UDP); + else if (flow_type == TCP_V4_FLOW) + req->features |= BIT_ULL(NPC_IPPROTO_TCP); + else + req->features |= BIT_ULL(NPC_IPPROTO_SCTP); + break; + case AH_V4_FLOW: + case ESP_V4_FLOW: + pkt->etype = cpu_to_be16(ETH_P_IP); + pmask->etype = cpu_to_be16(0xFFFF); + req->features |= BIT_ULL(NPC_ETYPE); + if (ah_esp_mask->ip4src) { + memcpy(&pkt->ip4src, &ah_esp_hdr->ip4src, + sizeof(pkt->ip4src)); + memcpy(&pmask->ip4src, &ah_esp_mask->ip4src, + sizeof(pmask->ip4src)); + req->features |= BIT_ULL(NPC_SIP_IPV4); + } + if (ah_esp_mask->ip4dst) { + memcpy(&pkt->ip4dst, &ah_esp_hdr->ip4dst, + sizeof(pkt->ip4dst)); + memcpy(&pmask->ip4dst, &ah_esp_mask->ip4dst, + sizeof(pmask->ip4dst)); + req->features |= BIT_ULL(NPC_DIP_IPV4); + } + if (ah_esp_mask->tos) { + pkt->tos = ah_esp_hdr->tos; + pmask->tos = ah_esp_mask->tos; + req->features |= BIT_ULL(NPC_TOS); + } + + /* NPC profile doesn't extract AH/ESP header fields */ + if (ah_esp_mask->spi & ah_esp_hdr->spi) + return -EOPNOTSUPP; + + if (flow_type == AH_V4_FLOW) + req->features |= BIT_ULL(NPC_IPPROTO_AH); + else + req->features |= BIT_ULL(NPC_IPPROTO_ESP); + break; + default: + break; + } + + return 0; +} + +static int otx2_prepare_ipv6_flow(struct ethtool_rx_flow_spec *fsp, + struct npc_install_flow_req *req, + u32 flow_type) +{ + struct ethtool_usrip6_spec *ipv6_usr_mask = &fsp->m_u.usr_ip6_spec; + struct ethtool_usrip6_spec *ipv6_usr_hdr = &fsp->h_u.usr_ip6_spec; + struct ethtool_tcpip6_spec *ipv6_l4_mask = &fsp->m_u.tcp_ip6_spec; + struct ethtool_tcpip6_spec *ipv6_l4_hdr = &fsp->h_u.tcp_ip6_spec; + struct ethtool_ah_espip6_spec *ah_esp_hdr = &fsp->h_u.ah_ip6_spec; + struct ethtool_ah_espip6_spec *ah_esp_mask = &fsp->m_u.ah_ip6_spec; + struct flow_msg *pmask = &req->mask; + struct flow_msg *pkt = &req->packet; + + switch (flow_type) { + case IPV6_USER_FLOW: + if (!ipv6_addr_any((struct in6_addr *)ipv6_usr_mask->ip6src)) { + memcpy(&pkt->ip6src, &ipv6_usr_hdr->ip6src, + sizeof(pkt->ip6src)); + memcpy(&pmask->ip6src, &ipv6_usr_mask->ip6src, + sizeof(pmask->ip6src)); + req->features |= BIT_ULL(NPC_SIP_IPV6); + } + if (!ipv6_addr_any((struct in6_addr *)ipv6_usr_mask->ip6dst)) { + memcpy(&pkt->ip6dst, &ipv6_usr_hdr->ip6dst, + sizeof(pkt->ip6dst)); + memcpy(&pmask->ip6dst, &ipv6_usr_mask->ip6dst, + sizeof(pmask->ip6dst)); + req->features |= BIT_ULL(NPC_DIP_IPV6); + } + pkt->etype = cpu_to_be16(ETH_P_IPV6); + pmask->etype = cpu_to_be16(0xFFFF); + req->features |= BIT_ULL(NPC_ETYPE); + break; + case TCP_V6_FLOW: + case UDP_V6_FLOW: + case SCTP_V6_FLOW: + pkt->etype = cpu_to_be16(ETH_P_IPV6); + pmask->etype = cpu_to_be16(0xFFFF); + req->features |= BIT_ULL(NPC_ETYPE); + if (!ipv6_addr_any((struct in6_addr *)ipv6_l4_mask->ip6src)) { + memcpy(&pkt->ip6src, &ipv6_l4_hdr->ip6src, + sizeof(pkt->ip6src)); + memcpy(&pmask->ip6src, &ipv6_l4_mask->ip6src, + sizeof(pmask->ip6src)); + req->features |= BIT_ULL(NPC_SIP_IPV6); + } + if (!ipv6_addr_any((struct in6_addr *)ipv6_l4_mask->ip6dst)) { + memcpy(&pkt->ip6dst, &ipv6_l4_hdr->ip6dst, + sizeof(pkt->ip6dst)); + memcpy(&pmask->ip6dst, &ipv6_l4_mask->ip6dst, + sizeof(pmask->ip6dst)); + req->features |= BIT_ULL(NPC_DIP_IPV6); + } + if (ipv6_l4_mask->psrc) { + memcpy(&pkt->sport, &ipv6_l4_hdr->psrc, + sizeof(pkt->sport)); + memcpy(&pmask->sport, &ipv6_l4_mask->psrc, + sizeof(pmask->sport)); + if (flow_type == UDP_V6_FLOW) + req->features |= BIT_ULL(NPC_SPORT_UDP); + else if (flow_type == TCP_V6_FLOW) + req->features |= BIT_ULL(NPC_SPORT_TCP); + else + req->features |= BIT_ULL(NPC_SPORT_SCTP); + } + if (ipv6_l4_mask->pdst) { + memcpy(&pkt->dport, &ipv6_l4_hdr->pdst, + sizeof(pkt->dport)); + memcpy(&pmask->dport, &ipv6_l4_mask->pdst, + sizeof(pmask->dport)); + if (flow_type == UDP_V6_FLOW) + req->features |= BIT_ULL(NPC_DPORT_UDP); + else if (flow_type == TCP_V6_FLOW) + req->features |= BIT_ULL(NPC_DPORT_TCP); + else + req->features |= BIT_ULL(NPC_DPORT_SCTP); + } + if (flow_type == UDP_V6_FLOW) + req->features |= BIT_ULL(NPC_IPPROTO_UDP); + else if (flow_type == TCP_V6_FLOW) + req->features |= BIT_ULL(NPC_IPPROTO_TCP); + else + req->features |= BIT_ULL(NPC_IPPROTO_SCTP); + break; + case AH_V6_FLOW: + case ESP_V6_FLOW: + pkt->etype = cpu_to_be16(ETH_P_IPV6); + pmask->etype = cpu_to_be16(0xFFFF); + req->features |= BIT_ULL(NPC_ETYPE); + if (!ipv6_addr_any((struct in6_addr *)ah_esp_hdr->ip6src)) { + memcpy(&pkt->ip6src, &ah_esp_hdr->ip6src, + sizeof(pkt->ip6src)); + memcpy(&pmask->ip6src, &ah_esp_mask->ip6src, + sizeof(pmask->ip6src)); + req->features |= BIT_ULL(NPC_SIP_IPV6); + } + if (!ipv6_addr_any((struct in6_addr *)ah_esp_hdr->ip6dst)) { + memcpy(&pkt->ip6dst, &ah_esp_hdr->ip6dst, + sizeof(pkt->ip6dst)); + memcpy(&pmask->ip6dst, &ah_esp_mask->ip6dst, + sizeof(pmask->ip6dst)); + req->features |= BIT_ULL(NPC_DIP_IPV6); + } + + /* NPC profile doesn't extract AH/ESP header fields */ + if ((ah_esp_mask->spi & ah_esp_hdr->spi) || + (ah_esp_mask->tclass & ah_esp_hdr->tclass)) + return -EOPNOTSUPP; + + if (flow_type == AH_V6_FLOW) + req->features |= BIT_ULL(NPC_IPPROTO_AH); + else + req->features |= BIT_ULL(NPC_IPPROTO_ESP); + break; + default: + break; + } + + return 0; +} + +static int otx2_prepare_flow_request(struct ethtool_rx_flow_spec *fsp, + struct npc_install_flow_req *req) +{ + struct ethhdr *eth_mask = &fsp->m_u.ether_spec; + struct ethhdr *eth_hdr = &fsp->h_u.ether_spec; + struct flow_msg *pmask = &req->mask; + struct flow_msg *pkt = &req->packet; + u32 flow_type; + int ret; + + flow_type = fsp->flow_type & ~(FLOW_EXT | FLOW_MAC_EXT | FLOW_RSS); + switch (flow_type) { + /* bits not set in mask are don't care */ + case ETHER_FLOW: + if (!is_zero_ether_addr(eth_mask->h_source)) { + ether_addr_copy(pkt->smac, eth_hdr->h_source); + ether_addr_copy(pmask->smac, eth_mask->h_source); + req->features |= BIT_ULL(NPC_SMAC); + } + if (!is_zero_ether_addr(eth_mask->h_dest)) { + ether_addr_copy(pkt->dmac, eth_hdr->h_dest); + ether_addr_copy(pmask->dmac, eth_mask->h_dest); + req->features |= BIT_ULL(NPC_DMAC); + } + if (eth_hdr->h_proto) { + memcpy(&pkt->etype, ð_hdr->h_proto, + sizeof(pkt->etype)); + memcpy(&pmask->etype, ð_mask->h_proto, + sizeof(pmask->etype)); + req->features |= BIT_ULL(NPC_ETYPE); + } + break; + case IP_USER_FLOW: + case TCP_V4_FLOW: + case UDP_V4_FLOW: + case SCTP_V4_FLOW: + case AH_V4_FLOW: + case ESP_V4_FLOW: + ret = otx2_prepare_ipv4_flow(fsp, req, flow_type); + if (ret) + return ret; + break; + case IPV6_USER_FLOW: + case TCP_V6_FLOW: + case UDP_V6_FLOW: + case SCTP_V6_FLOW: + case AH_V6_FLOW: + case ESP_V6_FLOW: + ret = otx2_prepare_ipv6_flow(fsp, req, flow_type); + if (ret) + return ret; + break; + default: + return -EOPNOTSUPP; + } + if (fsp->flow_type & FLOW_EXT) { + u16 vlan_etype; + + if (fsp->m_ext.vlan_etype) { + /* Partial masks not supported */ + if (be16_to_cpu(fsp->m_ext.vlan_etype) != 0xFFFF) + return -EINVAL; + + vlan_etype = be16_to_cpu(fsp->h_ext.vlan_etype); + + /* Drop rule with vlan_etype == 802.1Q + * and vlan_id == 0 is not supported + */ + if (vlan_etype == ETH_P_8021Q && !fsp->m_ext.vlan_tci && + fsp->ring_cookie == RX_CLS_FLOW_DISC) + return -EINVAL; + + /* Only ETH_P_8021Q and ETH_P_802AD types supported */ + if (vlan_etype != ETH_P_8021Q && + vlan_etype != ETH_P_8021AD) + return -EINVAL; + + memcpy(&pkt->vlan_etype, &fsp->h_ext.vlan_etype, + sizeof(pkt->vlan_etype)); + memcpy(&pmask->vlan_etype, &fsp->m_ext.vlan_etype, + sizeof(pmask->vlan_etype)); + + if (vlan_etype == ETH_P_8021Q) + req->features |= BIT_ULL(NPC_VLAN_ETYPE_CTAG); + else + req->features |= BIT_ULL(NPC_VLAN_ETYPE_STAG); + } + + if (fsp->m_ext.vlan_tci) { + memcpy(&pkt->vlan_tci, &fsp->h_ext.vlan_tci, + sizeof(pkt->vlan_tci)); + memcpy(&pmask->vlan_tci, &fsp->m_ext.vlan_tci, + sizeof(pmask->vlan_tci)); + req->features |= BIT_ULL(NPC_OUTER_VID); + } + + /* Not Drop/Direct to queue but use action in default entry */ + if (fsp->m_ext.data[1] && + fsp->h_ext.data[1] == cpu_to_be32(OTX2_DEFAULT_ACTION)) + req->op = NIX_RX_ACTION_DEFAULT; + } + + if (fsp->flow_type & FLOW_MAC_EXT && + !is_zero_ether_addr(fsp->m_ext.h_dest)) { + ether_addr_copy(pkt->dmac, fsp->h_ext.h_dest); + ether_addr_copy(pmask->dmac, fsp->m_ext.h_dest); + req->features |= BIT_ULL(NPC_DMAC); + } + + if (!req->features) + return -EOPNOTSUPP; + + return 0; +} + +static int otx2_is_flow_rule_dmacfilter(struct otx2_nic *pfvf, + struct ethtool_rx_flow_spec *fsp) +{ + struct ethhdr *eth_mask = &fsp->m_u.ether_spec; + struct ethhdr *eth_hdr = &fsp->h_u.ether_spec; + u64 ring_cookie = fsp->ring_cookie; + u32 flow_type; + + if (!(pfvf->flags & OTX2_FLAG_DMACFLTR_SUPPORT)) + return false; + + flow_type = fsp->flow_type & ~(FLOW_EXT | FLOW_MAC_EXT | FLOW_RSS); + + /* CGX/RPM block dmac filtering configured for white listing + * check for action other than DROP + */ + if (flow_type == ETHER_FLOW && ring_cookie != RX_CLS_FLOW_DISC && + !ethtool_get_flow_spec_ring_vf(ring_cookie)) { + if (is_zero_ether_addr(eth_mask->h_dest) && + is_valid_ether_addr(eth_hdr->h_dest)) + return true; + } + + return false; +} + +static int otx2_add_flow_msg(struct otx2_nic *pfvf, struct otx2_flow *flow) +{ + u64 ring_cookie = flow->flow_spec.ring_cookie; +#ifdef CONFIG_DCB + int vlan_prio, qidx, pfc_rule = 0; +#endif + struct npc_install_flow_req *req; + int err, vf = 0; + + mutex_lock(&pfvf->mbox.lock); + req = otx2_mbox_alloc_msg_npc_install_flow(&pfvf->mbox); + if (!req) { + mutex_unlock(&pfvf->mbox.lock); + return -ENOMEM; + } + + err = otx2_prepare_flow_request(&flow->flow_spec, req); + if (err) { + /* free the allocated msg above */ + otx2_mbox_reset(&pfvf->mbox.mbox, 0); + mutex_unlock(&pfvf->mbox.lock); + return err; + } + + req->entry = flow->entry; + req->intf = NIX_INTF_RX; + req->set_cntr = 1; + req->channel = pfvf->hw.rx_chan_base; + if (ring_cookie == RX_CLS_FLOW_DISC) { + req->op = NIX_RX_ACTIONOP_DROP; + } else { + /* change to unicast only if action of default entry is not + * requested by user + */ + if (flow->flow_spec.flow_type & FLOW_RSS) { + req->op = NIX_RX_ACTIONOP_RSS; + req->index = flow->rss_ctx_id; + req->flow_key_alg = pfvf->hw.flowkey_alg_idx; + } else { + req->op = NIX_RX_ACTIONOP_UCAST; + req->index = ethtool_get_flow_spec_ring(ring_cookie); + } + vf = ethtool_get_flow_spec_ring_vf(ring_cookie); + if (vf > pci_num_vf(pfvf->pdev)) { + mutex_unlock(&pfvf->mbox.lock); + return -EINVAL; + } + +#ifdef CONFIG_DCB + /* Identify PFC rule if PFC enabled and ntuple rule is vlan */ + if (!vf && (req->features & BIT_ULL(NPC_OUTER_VID)) && + pfvf->pfc_en && req->op != NIX_RX_ACTIONOP_RSS) { + vlan_prio = ntohs(req->packet.vlan_tci) & + ntohs(req->mask.vlan_tci); + + /* Get the priority */ + vlan_prio >>= 13; + flow->rule_type |= PFC_FLOWCTRL_RULE; + /* Check if PFC enabled for this priority */ + if (pfvf->pfc_en & BIT(vlan_prio)) { + pfc_rule = true; + qidx = req->index; + } + } +#endif + } + + /* ethtool ring_cookie has (VF + 1) for VF */ + if (vf) { + req->vf = vf; + flow->is_vf = true; + flow->vf = vf; + } + + /* Send message to AF */ + err = otx2_sync_mbox_msg(&pfvf->mbox); + +#ifdef CONFIG_DCB + if (!err && pfc_rule) + otx2_update_bpid_in_rqctx(pfvf, vlan_prio, qidx, true); +#endif + + mutex_unlock(&pfvf->mbox.lock); + return err; +} + +static int otx2_add_flow_with_pfmac(struct otx2_nic *pfvf, + struct otx2_flow *flow) +{ + struct otx2_flow *pf_mac; + struct ethhdr *eth_hdr; + + pf_mac = kzalloc(sizeof(*pf_mac), GFP_KERNEL); + if (!pf_mac) + return -ENOMEM; + + pf_mac->entry = 0; + pf_mac->rule_type |= DMAC_FILTER_RULE; + pf_mac->location = pfvf->flow_cfg->max_flows; + memcpy(&pf_mac->flow_spec, &flow->flow_spec, + sizeof(struct ethtool_rx_flow_spec)); + pf_mac->flow_spec.location = pf_mac->location; + + /* Copy PF mac address */ + eth_hdr = &pf_mac->flow_spec.h_u.ether_spec; + ether_addr_copy(eth_hdr->h_dest, pfvf->netdev->dev_addr); + + /* Install DMAC filter with PF mac address */ + otx2_dmacflt_add(pfvf, eth_hdr->h_dest, 0); + + otx2_add_flow_to_list(pfvf, pf_mac); + pfvf->flow_cfg->nr_flows++; + set_bit(0, pfvf->flow_cfg->dmacflt_bmap); + + return 0; +} + +int otx2_add_flow(struct otx2_nic *pfvf, struct ethtool_rxnfc *nfc) +{ + struct otx2_flow_config *flow_cfg = pfvf->flow_cfg; + struct ethtool_rx_flow_spec *fsp = &nfc->fs; + struct otx2_flow *flow; + struct ethhdr *eth_hdr; + bool new = false; + int err = 0; + u64 vf_num; + u32 ring; + + if (!flow_cfg->max_flows) { + netdev_err(pfvf->netdev, + "Ntuple rule count is 0, allocate and retry\n"); + return -EINVAL; + } + + ring = ethtool_get_flow_spec_ring(fsp->ring_cookie); + if (!(pfvf->flags & OTX2_FLAG_NTUPLE_SUPPORT)) + return -ENOMEM; + + /* Number of queues on a VF can be greater or less than + * the PF's queue. Hence no need to check for the + * queue count. Hence no need to check queue count if PF + * is installing for its VF. Below is the expected vf_num value + * based on the ethtool commands. + * + * e.g. + * 1. ethtool -U <netdev> ... action -1 ==> vf_num:255 + * 2. ethtool -U <netdev> ... action <queue_num> ==> vf_num:0 + * 3. ethtool -U <netdev> ... vf <vf_idx> queue <queue_num> ==> + * vf_num:vf_idx+1 + */ + vf_num = ethtool_get_flow_spec_ring_vf(fsp->ring_cookie); + if (!is_otx2_vf(pfvf->pcifunc) && !vf_num && + ring >= pfvf->hw.rx_queues && fsp->ring_cookie != RX_CLS_FLOW_DISC) + return -EINVAL; + + if (fsp->location >= otx2_get_maxflows(flow_cfg)) + return -EINVAL; + + flow = otx2_find_flow(pfvf, fsp->location); + if (!flow) { + flow = kzalloc(sizeof(*flow), GFP_KERNEL); + if (!flow) + return -ENOMEM; + flow->location = fsp->location; + flow->entry = flow_cfg->flow_ent[flow->location]; + new = true; + } + /* struct copy */ + flow->flow_spec = *fsp; + + if (fsp->flow_type & FLOW_RSS) + flow->rss_ctx_id = nfc->rss_context; + + if (otx2_is_flow_rule_dmacfilter(pfvf, &flow->flow_spec)) { + eth_hdr = &flow->flow_spec.h_u.ether_spec; + + /* Sync dmac filter table with updated fields */ + if (flow->rule_type & DMAC_FILTER_RULE) + return otx2_dmacflt_update(pfvf, eth_hdr->h_dest, + flow->entry); + + if (bitmap_full(flow_cfg->dmacflt_bmap, + flow_cfg->dmacflt_max_flows)) { + netdev_warn(pfvf->netdev, + "Can't insert the rule %d as max allowed dmac filters are %d\n", + flow->location + + flow_cfg->dmacflt_max_flows, + flow_cfg->dmacflt_max_flows); + err = -EINVAL; + if (new) + kfree(flow); + return err; + } + + /* Install PF mac address to DMAC filter list */ + if (!test_bit(0, flow_cfg->dmacflt_bmap)) + otx2_add_flow_with_pfmac(pfvf, flow); + + flow->rule_type |= DMAC_FILTER_RULE; + flow->entry = find_first_zero_bit(flow_cfg->dmacflt_bmap, + flow_cfg->dmacflt_max_flows); + fsp->location = flow_cfg->max_flows + flow->entry; + flow->flow_spec.location = fsp->location; + flow->location = fsp->location; + + set_bit(flow->entry, flow_cfg->dmacflt_bmap); + otx2_dmacflt_add(pfvf, eth_hdr->h_dest, flow->entry); + + } else { + if (flow->location >= pfvf->flow_cfg->max_flows) { + netdev_warn(pfvf->netdev, + "Can't insert non dmac ntuple rule at %d, allowed range %d-0\n", + flow->location, + flow_cfg->max_flows - 1); + err = -EINVAL; + } else { + err = otx2_add_flow_msg(pfvf, flow); + } + } + + if (err) { + if (err == MBOX_MSG_INVALID) + err = -EINVAL; + if (new) + kfree(flow); + return err; + } + + /* add the new flow installed to list */ + if (new) { + otx2_add_flow_to_list(pfvf, flow); + flow_cfg->nr_flows++; + } + + if (flow->is_vf) + netdev_info(pfvf->netdev, + "Make sure that VF's queue number is within its queue limit\n"); + return 0; +} + +static int otx2_remove_flow_msg(struct otx2_nic *pfvf, u16 entry, bool all) +{ + struct npc_delete_flow_req *req; + int err; + + mutex_lock(&pfvf->mbox.lock); + req = otx2_mbox_alloc_msg_npc_delete_flow(&pfvf->mbox); + if (!req) { + mutex_unlock(&pfvf->mbox.lock); + return -ENOMEM; + } + + req->entry = entry; + if (all) + req->all = 1; + + /* Send message to AF */ + err = otx2_sync_mbox_msg(&pfvf->mbox); + mutex_unlock(&pfvf->mbox.lock); + return err; +} + +static void otx2_update_rem_pfmac(struct otx2_nic *pfvf, int req) +{ + struct otx2_flow *iter; + struct ethhdr *eth_hdr; + bool found = false; + + list_for_each_entry(iter, &pfvf->flow_cfg->flow_list, list) { + if ((iter->rule_type & DMAC_FILTER_RULE) && iter->entry == 0) { + eth_hdr = &iter->flow_spec.h_u.ether_spec; + if (req == DMAC_ADDR_DEL) { + otx2_dmacflt_remove(pfvf, eth_hdr->h_dest, + 0); + clear_bit(0, pfvf->flow_cfg->dmacflt_bmap); + found = true; + } else { + ether_addr_copy(eth_hdr->h_dest, + pfvf->netdev->dev_addr); + + otx2_dmacflt_update(pfvf, eth_hdr->h_dest, 0); + } + break; + } + } + + if (found) { + list_del(&iter->list); + kfree(iter); + pfvf->flow_cfg->nr_flows--; + } +} + +int otx2_remove_flow(struct otx2_nic *pfvf, u32 location) +{ + struct otx2_flow_config *flow_cfg = pfvf->flow_cfg; + struct otx2_flow *flow; + int err; + + if (location >= otx2_get_maxflows(flow_cfg)) + return -EINVAL; + + flow = otx2_find_flow(pfvf, location); + if (!flow) + return -ENOENT; + + if (flow->rule_type & DMAC_FILTER_RULE) { + struct ethhdr *eth_hdr = &flow->flow_spec.h_u.ether_spec; + + /* user not allowed to remove dmac filter with interface mac */ + if (ether_addr_equal(pfvf->netdev->dev_addr, eth_hdr->h_dest)) + return -EPERM; + + err = otx2_dmacflt_remove(pfvf, eth_hdr->h_dest, + flow->entry); + clear_bit(flow->entry, flow_cfg->dmacflt_bmap); + /* If all dmac filters are removed delete macfilter with + * interface mac address and configure CGX/RPM block in + * promiscuous mode + */ + if (bitmap_weight(flow_cfg->dmacflt_bmap, + flow_cfg->dmacflt_max_flows) == 1) + otx2_update_rem_pfmac(pfvf, DMAC_ADDR_DEL); + } else { +#ifdef CONFIG_DCB + if (flow->rule_type & PFC_FLOWCTRL_RULE) + otx2_update_bpid_in_rqctx(pfvf, 0, + flow->flow_spec.ring_cookie, + false); +#endif + + err = otx2_remove_flow_msg(pfvf, flow->entry, false); + } + + if (err) + return err; + + list_del(&flow->list); + kfree(flow); + flow_cfg->nr_flows--; + + return 0; +} + +void otx2_rss_ctx_flow_del(struct otx2_nic *pfvf, int ctx_id) +{ + struct otx2_flow *flow, *tmp; + int err; + + list_for_each_entry_safe(flow, tmp, &pfvf->flow_cfg->flow_list, list) { + if (flow->rss_ctx_id != ctx_id) + continue; + err = otx2_remove_flow(pfvf, flow->location); + if (err) + netdev_warn(pfvf->netdev, + "Can't delete the rule %d associated with this rss group err:%d", + flow->location, err); + } +} + +int otx2_destroy_ntuple_flows(struct otx2_nic *pfvf) +{ + struct otx2_flow_config *flow_cfg = pfvf->flow_cfg; + struct npc_delete_flow_req *req; + struct otx2_flow *iter, *tmp; + int err; + + if (!(pfvf->flags & OTX2_FLAG_NTUPLE_SUPPORT)) + return 0; + + if (!flow_cfg->max_flows) + return 0; + + mutex_lock(&pfvf->mbox.lock); + req = otx2_mbox_alloc_msg_npc_delete_flow(&pfvf->mbox); + if (!req) { + mutex_unlock(&pfvf->mbox.lock); + return -ENOMEM; + } + + req->start = flow_cfg->flow_ent[0]; + req->end = flow_cfg->flow_ent[flow_cfg->max_flows - 1]; + err = otx2_sync_mbox_msg(&pfvf->mbox); + mutex_unlock(&pfvf->mbox.lock); + + list_for_each_entry_safe(iter, tmp, &flow_cfg->flow_list, list) { + list_del(&iter->list); + kfree(iter); + flow_cfg->nr_flows--; + } + return err; +} + +int otx2_destroy_mcam_flows(struct otx2_nic *pfvf) +{ + struct otx2_flow_config *flow_cfg = pfvf->flow_cfg; + struct npc_mcam_free_entry_req *req; + struct otx2_flow *iter, *tmp; + int err; + + if (!(pfvf->flags & OTX2_FLAG_MCAM_ENTRIES_ALLOC)) + return 0; + + /* remove all flows */ + err = otx2_remove_flow_msg(pfvf, 0, true); + if (err) + return err; + + list_for_each_entry_safe(iter, tmp, &flow_cfg->flow_list, list) { + list_del(&iter->list); + kfree(iter); + flow_cfg->nr_flows--; + } + + mutex_lock(&pfvf->mbox.lock); + req = otx2_mbox_alloc_msg_npc_mcam_free_entry(&pfvf->mbox); + if (!req) { + mutex_unlock(&pfvf->mbox.lock); + return -ENOMEM; + } + + req->all = 1; + /* Send message to AF to free MCAM entries */ + err = otx2_sync_mbox_msg(&pfvf->mbox); + if (err) { + mutex_unlock(&pfvf->mbox.lock); + return err; + } + + pfvf->flags &= ~OTX2_FLAG_MCAM_ENTRIES_ALLOC; + mutex_unlock(&pfvf->mbox.lock); + + return 0; +} + +int otx2_install_rxvlan_offload_flow(struct otx2_nic *pfvf) +{ + struct otx2_flow_config *flow_cfg = pfvf->flow_cfg; + struct npc_install_flow_req *req; + int err; + + mutex_lock(&pfvf->mbox.lock); + req = otx2_mbox_alloc_msg_npc_install_flow(&pfvf->mbox); + if (!req) { + mutex_unlock(&pfvf->mbox.lock); + return -ENOMEM; + } + + req->entry = flow_cfg->def_ent[flow_cfg->rx_vlan_offset]; + req->intf = NIX_INTF_RX; + ether_addr_copy(req->packet.dmac, pfvf->netdev->dev_addr); + eth_broadcast_addr((u8 *)&req->mask.dmac); + req->channel = pfvf->hw.rx_chan_base; + req->op = NIX_RX_ACTION_DEFAULT; + req->features = BIT_ULL(NPC_OUTER_VID) | BIT_ULL(NPC_DMAC); + req->vtag0_valid = true; + req->vtag0_type = NIX_AF_LFX_RX_VTAG_TYPE0; + + /* Send message to AF */ + err = otx2_sync_mbox_msg(&pfvf->mbox); + mutex_unlock(&pfvf->mbox.lock); + return err; +} + +static int otx2_delete_rxvlan_offload_flow(struct otx2_nic *pfvf) +{ + struct otx2_flow_config *flow_cfg = pfvf->flow_cfg; + struct npc_delete_flow_req *req; + int err; + + mutex_lock(&pfvf->mbox.lock); + req = otx2_mbox_alloc_msg_npc_delete_flow(&pfvf->mbox); + if (!req) { + mutex_unlock(&pfvf->mbox.lock); + return -ENOMEM; + } + + req->entry = flow_cfg->def_ent[flow_cfg->rx_vlan_offset]; + /* Send message to AF */ + err = otx2_sync_mbox_msg(&pfvf->mbox); + mutex_unlock(&pfvf->mbox.lock); + return err; +} + +int otx2_enable_rxvlan(struct otx2_nic *pf, bool enable) +{ + struct nix_vtag_config *req; + struct mbox_msghdr *rsp_hdr; + int err; + + /* Dont have enough mcam entries */ + if (!(pf->flags & OTX2_FLAG_RX_VLAN_SUPPORT)) + return -ENOMEM; + + if (enable) { + err = otx2_install_rxvlan_offload_flow(pf); + if (err) + return err; + } else { + err = otx2_delete_rxvlan_offload_flow(pf); + if (err) + return err; + } + + mutex_lock(&pf->mbox.lock); + req = otx2_mbox_alloc_msg_nix_vtag_cfg(&pf->mbox); + if (!req) { + mutex_unlock(&pf->mbox.lock); + return -ENOMEM; + } + + /* config strip, capture and size */ + req->vtag_size = VTAGSIZE_T4; + req->cfg_type = 1; /* rx vlan cfg */ + req->rx.vtag_type = NIX_AF_LFX_RX_VTAG_TYPE0; + req->rx.strip_vtag = enable; + req->rx.capture_vtag = enable; + + err = otx2_sync_mbox_msg(&pf->mbox); + if (err) { + mutex_unlock(&pf->mbox.lock); + return err; + } + + rsp_hdr = otx2_mbox_get_rsp(&pf->mbox.mbox, 0, &req->hdr); + if (IS_ERR(rsp_hdr)) { + mutex_unlock(&pf->mbox.lock); + return PTR_ERR(rsp_hdr); + } + + mutex_unlock(&pf->mbox.lock); + return rsp_hdr->rc; +} + +void otx2_dmacflt_reinstall_flows(struct otx2_nic *pf) +{ + struct otx2_flow *iter; + struct ethhdr *eth_hdr; + + list_for_each_entry(iter, &pf->flow_cfg->flow_list, list) { + if (iter->rule_type & DMAC_FILTER_RULE) { + eth_hdr = &iter->flow_spec.h_u.ether_spec; + otx2_dmacflt_add(pf, eth_hdr->h_dest, + iter->entry); + } + } +} + +void otx2_dmacflt_update_pfmac_flow(struct otx2_nic *pfvf) +{ + otx2_update_rem_pfmac(pfvf, DMAC_ADDR_UPDATE); +} diff --git a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_pf.c b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_pf.c new file mode 100644 index 000000000..a2d8ac620 --- /dev/null +++ b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_pf.c @@ -0,0 +1,3205 @@ +// SPDX-License-Identifier: GPL-2.0 +/* Marvell RVU Physical Function ethernet driver + * + * Copyright (C) 2020 Marvell. + * + */ + +#include <linux/module.h> +#include <linux/interrupt.h> +#include <linux/pci.h> +#include <linux/etherdevice.h> +#include <linux/of.h> +#include <linux/if_vlan.h> +#include <linux/iommu.h> +#include <net/ip.h> +#include <linux/bpf.h> +#include <linux/bpf_trace.h> +#include <linux/bitfield.h> + +#include "otx2_reg.h" +#include "otx2_common.h" +#include "otx2_txrx.h" +#include "otx2_struct.h" +#include "otx2_ptp.h" +#include "cn10k.h" +#include "qos.h" +#include <rvu_trace.h> + +#define DRV_NAME "rvu_nicpf" +#define DRV_STRING "Marvell RVU NIC Physical Function Driver" + +/* Supported devices */ +static const struct pci_device_id otx2_pf_id_table[] = { + { PCI_DEVICE(PCI_VENDOR_ID_CAVIUM, PCI_DEVID_OCTEONTX2_RVU_PF) }, + { 0, } /* end of table */ +}; + +MODULE_AUTHOR("Sunil Goutham <sgoutham@marvell.com>"); +MODULE_DESCRIPTION(DRV_STRING); +MODULE_LICENSE("GPL v2"); +MODULE_DEVICE_TABLE(pci, otx2_pf_id_table); + +static void otx2_vf_link_event_task(struct work_struct *work); + +enum { + TYPE_PFAF, + TYPE_PFVF, +}; + +static int otx2_config_hw_tx_tstamp(struct otx2_nic *pfvf, bool enable); +static int otx2_config_hw_rx_tstamp(struct otx2_nic *pfvf, bool enable); + +static int otx2_change_mtu(struct net_device *netdev, int new_mtu) +{ + struct otx2_nic *pf = netdev_priv(netdev); + bool if_up = netif_running(netdev); + int err = 0; + + if (pf->xdp_prog && new_mtu > MAX_XDP_MTU) { + netdev_warn(netdev, "Jumbo frames not yet supported with XDP, current MTU %d.\n", + netdev->mtu); + return -EINVAL; + } + if (if_up) + otx2_stop(netdev); + + netdev_info(netdev, "Changing MTU from %d to %d\n", + netdev->mtu, new_mtu); + netdev->mtu = new_mtu; + + if (if_up) + err = otx2_open(netdev); + + return err; +} + +static void otx2_disable_flr_me_intr(struct otx2_nic *pf) +{ + int irq, vfs = pf->total_vfs; + + /* Disable VFs ME interrupts */ + otx2_write64(pf, RVU_PF_VFME_INT_ENA_W1CX(0), INTR_MASK(vfs)); + irq = pci_irq_vector(pf->pdev, RVU_PF_INT_VEC_VFME0); + free_irq(irq, pf); + + /* Disable VFs FLR interrupts */ + otx2_write64(pf, RVU_PF_VFFLR_INT_ENA_W1CX(0), INTR_MASK(vfs)); + irq = pci_irq_vector(pf->pdev, RVU_PF_INT_VEC_VFFLR0); + free_irq(irq, pf); + + if (vfs <= 64) + return; + + otx2_write64(pf, RVU_PF_VFME_INT_ENA_W1CX(1), INTR_MASK(vfs - 64)); + irq = pci_irq_vector(pf->pdev, RVU_PF_INT_VEC_VFME1); + free_irq(irq, pf); + + otx2_write64(pf, RVU_PF_VFFLR_INT_ENA_W1CX(1), INTR_MASK(vfs - 64)); + irq = pci_irq_vector(pf->pdev, RVU_PF_INT_VEC_VFFLR1); + free_irq(irq, pf); +} + +static void otx2_flr_wq_destroy(struct otx2_nic *pf) +{ + if (!pf->flr_wq) + return; + destroy_workqueue(pf->flr_wq); + pf->flr_wq = NULL; + devm_kfree(pf->dev, pf->flr_wrk); +} + +static void otx2_flr_handler(struct work_struct *work) +{ + struct flr_work *flrwork = container_of(work, struct flr_work, work); + struct otx2_nic *pf = flrwork->pf; + struct mbox *mbox = &pf->mbox; + struct msg_req *req; + int vf, reg = 0; + + vf = flrwork - pf->flr_wrk; + + mutex_lock(&mbox->lock); + req = otx2_mbox_alloc_msg_vf_flr(mbox); + if (!req) { + mutex_unlock(&mbox->lock); + return; + } + req->hdr.pcifunc &= RVU_PFVF_FUNC_MASK; + req->hdr.pcifunc |= (vf + 1) & RVU_PFVF_FUNC_MASK; + + if (!otx2_sync_mbox_msg(&pf->mbox)) { + if (vf >= 64) { + reg = 1; + vf = vf - 64; + } + /* clear transcation pending bit */ + otx2_write64(pf, RVU_PF_VFTRPENDX(reg), BIT_ULL(vf)); + otx2_write64(pf, RVU_PF_VFFLR_INT_ENA_W1SX(reg), BIT_ULL(vf)); + } + + mutex_unlock(&mbox->lock); +} + +static irqreturn_t otx2_pf_flr_intr_handler(int irq, void *pf_irq) +{ + struct otx2_nic *pf = (struct otx2_nic *)pf_irq; + int reg, dev, vf, start_vf, num_reg = 1; + u64 intr; + + if (pf->total_vfs > 64) + num_reg = 2; + + for (reg = 0; reg < num_reg; reg++) { + intr = otx2_read64(pf, RVU_PF_VFFLR_INTX(reg)); + if (!intr) + continue; + start_vf = 64 * reg; + for (vf = 0; vf < 64; vf++) { + if (!(intr & BIT_ULL(vf))) + continue; + dev = vf + start_vf; + queue_work(pf->flr_wq, &pf->flr_wrk[dev].work); + /* Clear interrupt */ + otx2_write64(pf, RVU_PF_VFFLR_INTX(reg), BIT_ULL(vf)); + /* Disable the interrupt */ + otx2_write64(pf, RVU_PF_VFFLR_INT_ENA_W1CX(reg), + BIT_ULL(vf)); + } + } + return IRQ_HANDLED; +} + +static irqreturn_t otx2_pf_me_intr_handler(int irq, void *pf_irq) +{ + struct otx2_nic *pf = (struct otx2_nic *)pf_irq; + int vf, reg, num_reg = 1; + u64 intr; + + if (pf->total_vfs > 64) + num_reg = 2; + + for (reg = 0; reg < num_reg; reg++) { + intr = otx2_read64(pf, RVU_PF_VFME_INTX(reg)); + if (!intr) + continue; + for (vf = 0; vf < 64; vf++) { + if (!(intr & BIT_ULL(vf))) + continue; + /* clear trpend bit */ + otx2_write64(pf, RVU_PF_VFTRPENDX(reg), BIT_ULL(vf)); + /* clear interrupt */ + otx2_write64(pf, RVU_PF_VFME_INTX(reg), BIT_ULL(vf)); + } + } + return IRQ_HANDLED; +} + +static int otx2_register_flr_me_intr(struct otx2_nic *pf, int numvfs) +{ + struct otx2_hw *hw = &pf->hw; + char *irq_name; + int ret; + + /* Register ME interrupt handler*/ + irq_name = &hw->irq_name[RVU_PF_INT_VEC_VFME0 * NAME_SIZE]; + snprintf(irq_name, NAME_SIZE, "RVUPF%d_ME0", rvu_get_pf(pf->pcifunc)); + ret = request_irq(pci_irq_vector(pf->pdev, RVU_PF_INT_VEC_VFME0), + otx2_pf_me_intr_handler, 0, irq_name, pf); + if (ret) { + dev_err(pf->dev, + "RVUPF: IRQ registration failed for ME0\n"); + } + + /* Register FLR interrupt handler */ + irq_name = &hw->irq_name[RVU_PF_INT_VEC_VFFLR0 * NAME_SIZE]; + snprintf(irq_name, NAME_SIZE, "RVUPF%d_FLR0", rvu_get_pf(pf->pcifunc)); + ret = request_irq(pci_irq_vector(pf->pdev, RVU_PF_INT_VEC_VFFLR0), + otx2_pf_flr_intr_handler, 0, irq_name, pf); + if (ret) { + dev_err(pf->dev, + "RVUPF: IRQ registration failed for FLR0\n"); + return ret; + } + + if (numvfs > 64) { + irq_name = &hw->irq_name[RVU_PF_INT_VEC_VFME1 * NAME_SIZE]; + snprintf(irq_name, NAME_SIZE, "RVUPF%d_ME1", + rvu_get_pf(pf->pcifunc)); + ret = request_irq(pci_irq_vector + (pf->pdev, RVU_PF_INT_VEC_VFME1), + otx2_pf_me_intr_handler, 0, irq_name, pf); + if (ret) { + dev_err(pf->dev, + "RVUPF: IRQ registration failed for ME1\n"); + } + irq_name = &hw->irq_name[RVU_PF_INT_VEC_VFFLR1 * NAME_SIZE]; + snprintf(irq_name, NAME_SIZE, "RVUPF%d_FLR1", + rvu_get_pf(pf->pcifunc)); + ret = request_irq(pci_irq_vector + (pf->pdev, RVU_PF_INT_VEC_VFFLR1), + otx2_pf_flr_intr_handler, 0, irq_name, pf); + if (ret) { + dev_err(pf->dev, + "RVUPF: IRQ registration failed for FLR1\n"); + return ret; + } + } + + /* Enable ME interrupt for all VFs*/ + otx2_write64(pf, RVU_PF_VFME_INTX(0), INTR_MASK(numvfs)); + otx2_write64(pf, RVU_PF_VFME_INT_ENA_W1SX(0), INTR_MASK(numvfs)); + + /* Enable FLR interrupt for all VFs*/ + otx2_write64(pf, RVU_PF_VFFLR_INTX(0), INTR_MASK(numvfs)); + otx2_write64(pf, RVU_PF_VFFLR_INT_ENA_W1SX(0), INTR_MASK(numvfs)); + + if (numvfs > 64) { + numvfs -= 64; + + otx2_write64(pf, RVU_PF_VFME_INTX(1), INTR_MASK(numvfs)); + otx2_write64(pf, RVU_PF_VFME_INT_ENA_W1SX(1), + INTR_MASK(numvfs)); + + otx2_write64(pf, RVU_PF_VFFLR_INTX(1), INTR_MASK(numvfs)); + otx2_write64(pf, RVU_PF_VFFLR_INT_ENA_W1SX(1), + INTR_MASK(numvfs)); + } + return 0; +} + +static int otx2_pf_flr_init(struct otx2_nic *pf, int num_vfs) +{ + int vf; + + pf->flr_wq = alloc_workqueue("otx2_pf_flr_wq", + WQ_UNBOUND | WQ_HIGHPRI, 1); + if (!pf->flr_wq) + return -ENOMEM; + + pf->flr_wrk = devm_kcalloc(pf->dev, num_vfs, + sizeof(struct flr_work), GFP_KERNEL); + if (!pf->flr_wrk) { + destroy_workqueue(pf->flr_wq); + return -ENOMEM; + } + + for (vf = 0; vf < num_vfs; vf++) { + pf->flr_wrk[vf].pf = pf; + INIT_WORK(&pf->flr_wrk[vf].work, otx2_flr_handler); + } + + return 0; +} + +static void otx2_queue_work(struct mbox *mw, struct workqueue_struct *mbox_wq, + int first, int mdevs, u64 intr, int type) +{ + struct otx2_mbox_dev *mdev; + struct otx2_mbox *mbox; + struct mbox_hdr *hdr; + int i; + + for (i = first; i < mdevs; i++) { + /* start from 0 */ + if (!(intr & BIT_ULL(i - first))) + continue; + + mbox = &mw->mbox; + mdev = &mbox->dev[i]; + if (type == TYPE_PFAF) + otx2_sync_mbox_bbuf(mbox, i); + hdr = mdev->mbase + mbox->rx_start; + /* The hdr->num_msgs is set to zero immediately in the interrupt + * handler to ensure that it holds a correct value next time + * when the interrupt handler is called. + * pf->mbox.num_msgs holds the data for use in pfaf_mbox_handler + * pf>mbox.up_num_msgs holds the data for use in + * pfaf_mbox_up_handler. + */ + if (hdr->num_msgs) { + mw[i].num_msgs = hdr->num_msgs; + hdr->num_msgs = 0; + if (type == TYPE_PFAF) + memset(mbox->hwbase + mbox->rx_start, 0, + ALIGN(sizeof(struct mbox_hdr), + sizeof(u64))); + + queue_work(mbox_wq, &mw[i].mbox_wrk); + } + + mbox = &mw->mbox_up; + mdev = &mbox->dev[i]; + if (type == TYPE_PFAF) + otx2_sync_mbox_bbuf(mbox, i); + hdr = mdev->mbase + mbox->rx_start; + if (hdr->num_msgs) { + mw[i].up_num_msgs = hdr->num_msgs; + hdr->num_msgs = 0; + if (type == TYPE_PFAF) + memset(mbox->hwbase + mbox->rx_start, 0, + ALIGN(sizeof(struct mbox_hdr), + sizeof(u64))); + + queue_work(mbox_wq, &mw[i].mbox_up_wrk); + } + } +} + +static void otx2_forward_msg_pfvf(struct otx2_mbox_dev *mdev, + struct otx2_mbox *pfvf_mbox, void *bbuf_base, + int devid) +{ + struct otx2_mbox_dev *src_mdev = mdev; + int offset; + + /* Msgs are already copied, trigger VF's mbox irq */ + smp_wmb(); + + offset = pfvf_mbox->trigger | (devid << pfvf_mbox->tr_shift); + writeq(1, (void __iomem *)pfvf_mbox->reg_base + offset); + + /* Restore VF's mbox bounce buffer region address */ + src_mdev->mbase = bbuf_base; +} + +static int otx2_forward_vf_mbox_msgs(struct otx2_nic *pf, + struct otx2_mbox *src_mbox, + int dir, int vf, int num_msgs) +{ + struct otx2_mbox_dev *src_mdev, *dst_mdev; + struct mbox_hdr *mbox_hdr; + struct mbox_hdr *req_hdr; + struct mbox *dst_mbox; + int dst_size, err; + + if (dir == MBOX_DIR_PFAF) { + /* Set VF's mailbox memory as PF's bounce buffer memory, so + * that explicit copying of VF's msgs to PF=>AF mbox region + * and AF=>PF responses to VF's mbox region can be avoided. + */ + src_mdev = &src_mbox->dev[vf]; + mbox_hdr = src_mbox->hwbase + + src_mbox->rx_start + (vf * MBOX_SIZE); + + dst_mbox = &pf->mbox; + dst_size = dst_mbox->mbox.tx_size - + ALIGN(sizeof(*mbox_hdr), MBOX_MSG_ALIGN); + /* Check if msgs fit into destination area and has valid size */ + if (mbox_hdr->msg_size > dst_size || !mbox_hdr->msg_size) + return -EINVAL; + + dst_mdev = &dst_mbox->mbox.dev[0]; + + mutex_lock(&pf->mbox.lock); + dst_mdev->mbase = src_mdev->mbase; + dst_mdev->msg_size = mbox_hdr->msg_size; + dst_mdev->num_msgs = num_msgs; + err = otx2_sync_mbox_msg(dst_mbox); + /* Error code -EIO indicate there is a communication failure + * to the AF. Rest of the error codes indicate that AF processed + * VF messages and set the error codes in response messages + * (if any) so simply forward responses to VF. + */ + if (err == -EIO) { + dev_warn(pf->dev, + "AF not responding to VF%d messages\n", vf); + /* restore PF mbase and exit */ + dst_mdev->mbase = pf->mbox.bbuf_base; + mutex_unlock(&pf->mbox.lock); + return err; + } + /* At this point, all the VF messages sent to AF are acked + * with proper responses and responses are copied to VF + * mailbox hence raise interrupt to VF. + */ + req_hdr = (struct mbox_hdr *)(dst_mdev->mbase + + dst_mbox->mbox.rx_start); + req_hdr->num_msgs = num_msgs; + + otx2_forward_msg_pfvf(dst_mdev, &pf->mbox_pfvf[0].mbox, + pf->mbox.bbuf_base, vf); + mutex_unlock(&pf->mbox.lock); + } else if (dir == MBOX_DIR_PFVF_UP) { + src_mdev = &src_mbox->dev[0]; + mbox_hdr = src_mbox->hwbase + src_mbox->rx_start; + req_hdr = (struct mbox_hdr *)(src_mdev->mbase + + src_mbox->rx_start); + req_hdr->num_msgs = num_msgs; + + dst_mbox = &pf->mbox_pfvf[0]; + dst_size = dst_mbox->mbox_up.tx_size - + ALIGN(sizeof(*mbox_hdr), MBOX_MSG_ALIGN); + /* Check if msgs fit into destination area */ + if (mbox_hdr->msg_size > dst_size) + return -EINVAL; + + dst_mdev = &dst_mbox->mbox_up.dev[vf]; + dst_mdev->mbase = src_mdev->mbase; + dst_mdev->msg_size = mbox_hdr->msg_size; + dst_mdev->num_msgs = mbox_hdr->num_msgs; + err = otx2_sync_mbox_up_msg(dst_mbox, vf); + if (err) { + dev_warn(pf->dev, + "VF%d is not responding to mailbox\n", vf); + return err; + } + } else if (dir == MBOX_DIR_VFPF_UP) { + req_hdr = (struct mbox_hdr *)(src_mbox->dev[0].mbase + + src_mbox->rx_start); + req_hdr->num_msgs = num_msgs; + otx2_forward_msg_pfvf(&pf->mbox_pfvf->mbox_up.dev[vf], + &pf->mbox.mbox_up, + pf->mbox_pfvf[vf].bbuf_base, + 0); + } + + return 0; +} + +static void otx2_pfvf_mbox_handler(struct work_struct *work) +{ + struct mbox_msghdr *msg = NULL; + int offset, vf_idx, id, err; + struct otx2_mbox_dev *mdev; + struct mbox_hdr *req_hdr; + struct otx2_mbox *mbox; + struct mbox *vf_mbox; + struct otx2_nic *pf; + + vf_mbox = container_of(work, struct mbox, mbox_wrk); + pf = vf_mbox->pfvf; + vf_idx = vf_mbox - pf->mbox_pfvf; + + mbox = &pf->mbox_pfvf[0].mbox; + mdev = &mbox->dev[vf_idx]; + req_hdr = (struct mbox_hdr *)(mdev->mbase + mbox->rx_start); + + offset = ALIGN(sizeof(*req_hdr), MBOX_MSG_ALIGN); + + for (id = 0; id < vf_mbox->num_msgs; id++) { + msg = (struct mbox_msghdr *)(mdev->mbase + mbox->rx_start + + offset); + + if (msg->sig != OTX2_MBOX_REQ_SIG) + goto inval_msg; + + /* Set VF's number in each of the msg */ + msg->pcifunc &= RVU_PFVF_FUNC_MASK; + msg->pcifunc |= (vf_idx + 1) & RVU_PFVF_FUNC_MASK; + offset = msg->next_msgoff; + } + err = otx2_forward_vf_mbox_msgs(pf, mbox, MBOX_DIR_PFAF, vf_idx, + vf_mbox->num_msgs); + if (err) + goto inval_msg; + return; + +inval_msg: + otx2_reply_invalid_msg(mbox, vf_idx, 0, msg->id); + otx2_mbox_msg_send(mbox, vf_idx); +} + +static void otx2_pfvf_mbox_up_handler(struct work_struct *work) +{ + struct mbox *vf_mbox = container_of(work, struct mbox, mbox_up_wrk); + struct otx2_nic *pf = vf_mbox->pfvf; + struct otx2_mbox_dev *mdev; + int offset, id, vf_idx = 0; + struct mbox_hdr *rsp_hdr; + struct mbox_msghdr *msg; + struct otx2_mbox *mbox; + + vf_idx = vf_mbox - pf->mbox_pfvf; + mbox = &pf->mbox_pfvf[0].mbox_up; + mdev = &mbox->dev[vf_idx]; + + rsp_hdr = (struct mbox_hdr *)(mdev->mbase + mbox->rx_start); + offset = mbox->rx_start + ALIGN(sizeof(*rsp_hdr), MBOX_MSG_ALIGN); + + for (id = 0; id < vf_mbox->up_num_msgs; id++) { + msg = mdev->mbase + offset; + + if (msg->id >= MBOX_MSG_MAX) { + dev_err(pf->dev, + "Mbox msg with unknown ID 0x%x\n", msg->id); + goto end; + } + + if (msg->sig != OTX2_MBOX_RSP_SIG) { + dev_err(pf->dev, + "Mbox msg with wrong signature %x, ID 0x%x\n", + msg->sig, msg->id); + goto end; + } + + switch (msg->id) { + case MBOX_MSG_CGX_LINK_EVENT: + break; + default: + if (msg->rc) + dev_err(pf->dev, + "Mbox msg response has err %d, ID 0x%x\n", + msg->rc, msg->id); + break; + } + +end: + offset = mbox->rx_start + msg->next_msgoff; + if (mdev->msgs_acked == (vf_mbox->up_num_msgs - 1)) + __otx2_mbox_reset(mbox, 0); + mdev->msgs_acked++; + } +} + +static irqreturn_t otx2_pfvf_mbox_intr_handler(int irq, void *pf_irq) +{ + struct otx2_nic *pf = (struct otx2_nic *)(pf_irq); + int vfs = pf->total_vfs; + struct mbox *mbox; + u64 intr; + + mbox = pf->mbox_pfvf; + /* Handle VF interrupts */ + if (vfs > 64) { + intr = otx2_read64(pf, RVU_PF_VFPF_MBOX_INTX(1)); + otx2_write64(pf, RVU_PF_VFPF_MBOX_INTX(1), intr); + otx2_queue_work(mbox, pf->mbox_pfvf_wq, 64, vfs, intr, + TYPE_PFVF); + if (intr) + trace_otx2_msg_interrupt(mbox->mbox.pdev, "VF(s) to PF", intr); + vfs = 64; + } + + intr = otx2_read64(pf, RVU_PF_VFPF_MBOX_INTX(0)); + otx2_write64(pf, RVU_PF_VFPF_MBOX_INTX(0), intr); + + otx2_queue_work(mbox, pf->mbox_pfvf_wq, 0, vfs, intr, TYPE_PFVF); + + if (intr) + trace_otx2_msg_interrupt(mbox->mbox.pdev, "VF(s) to PF", intr); + + return IRQ_HANDLED; +} + +static int otx2_pfvf_mbox_init(struct otx2_nic *pf, int numvfs) +{ + void __iomem *hwbase; + struct mbox *mbox; + int err, vf; + u64 base; + + if (!numvfs) + return -EINVAL; + + pf->mbox_pfvf = devm_kcalloc(&pf->pdev->dev, numvfs, + sizeof(struct mbox), GFP_KERNEL); + if (!pf->mbox_pfvf) + return -ENOMEM; + + pf->mbox_pfvf_wq = alloc_workqueue("otx2_pfvf_mailbox", + WQ_UNBOUND | WQ_HIGHPRI | + WQ_MEM_RECLAIM, 1); + if (!pf->mbox_pfvf_wq) + return -ENOMEM; + + /* On CN10K platform, PF <-> VF mailbox region follows after + * PF <-> AF mailbox region. + */ + if (test_bit(CN10K_MBOX, &pf->hw.cap_flag)) + base = pci_resource_start(pf->pdev, PCI_MBOX_BAR_NUM) + + MBOX_SIZE; + else + base = readq((void __iomem *)((u64)pf->reg_base + + RVU_PF_VF_BAR4_ADDR)); + + hwbase = ioremap_wc(base, MBOX_SIZE * pf->total_vfs); + if (!hwbase) { + err = -ENOMEM; + goto free_wq; + } + + mbox = &pf->mbox_pfvf[0]; + err = otx2_mbox_init(&mbox->mbox, hwbase, pf->pdev, pf->reg_base, + MBOX_DIR_PFVF, numvfs); + if (err) + goto free_iomem; + + err = otx2_mbox_init(&mbox->mbox_up, hwbase, pf->pdev, pf->reg_base, + MBOX_DIR_PFVF_UP, numvfs); + if (err) + goto free_iomem; + + for (vf = 0; vf < numvfs; vf++) { + mbox->pfvf = pf; + INIT_WORK(&mbox->mbox_wrk, otx2_pfvf_mbox_handler); + INIT_WORK(&mbox->mbox_up_wrk, otx2_pfvf_mbox_up_handler); + mbox++; + } + + return 0; + +free_iomem: + if (hwbase) + iounmap(hwbase); +free_wq: + destroy_workqueue(pf->mbox_pfvf_wq); + return err; +} + +static void otx2_pfvf_mbox_destroy(struct otx2_nic *pf) +{ + struct mbox *mbox = &pf->mbox_pfvf[0]; + + if (!mbox) + return; + + if (pf->mbox_pfvf_wq) { + destroy_workqueue(pf->mbox_pfvf_wq); + pf->mbox_pfvf_wq = NULL; + } + + if (mbox->mbox.hwbase) + iounmap(mbox->mbox.hwbase); + + otx2_mbox_destroy(&mbox->mbox); +} + +static void otx2_enable_pfvf_mbox_intr(struct otx2_nic *pf, int numvfs) +{ + /* Clear PF <=> VF mailbox IRQ */ + otx2_write64(pf, RVU_PF_VFPF_MBOX_INTX(0), ~0ull); + otx2_write64(pf, RVU_PF_VFPF_MBOX_INTX(1), ~0ull); + + /* Enable PF <=> VF mailbox IRQ */ + otx2_write64(pf, RVU_PF_VFPF_MBOX_INT_ENA_W1SX(0), INTR_MASK(numvfs)); + if (numvfs > 64) { + numvfs -= 64; + otx2_write64(pf, RVU_PF_VFPF_MBOX_INT_ENA_W1SX(1), + INTR_MASK(numvfs)); + } +} + +static void otx2_disable_pfvf_mbox_intr(struct otx2_nic *pf, int numvfs) +{ + int vector; + + /* Disable PF <=> VF mailbox IRQ */ + otx2_write64(pf, RVU_PF_VFPF_MBOX_INT_ENA_W1CX(0), ~0ull); + otx2_write64(pf, RVU_PF_VFPF_MBOX_INT_ENA_W1CX(1), ~0ull); + + otx2_write64(pf, RVU_PF_VFPF_MBOX_INTX(0), ~0ull); + vector = pci_irq_vector(pf->pdev, RVU_PF_INT_VEC_VFPF_MBOX0); + free_irq(vector, pf); + + if (numvfs > 64) { + otx2_write64(pf, RVU_PF_VFPF_MBOX_INTX(1), ~0ull); + vector = pci_irq_vector(pf->pdev, RVU_PF_INT_VEC_VFPF_MBOX1); + free_irq(vector, pf); + } +} + +static int otx2_register_pfvf_mbox_intr(struct otx2_nic *pf, int numvfs) +{ + struct otx2_hw *hw = &pf->hw; + char *irq_name; + int err; + + /* Register MBOX0 interrupt handler */ + irq_name = &hw->irq_name[RVU_PF_INT_VEC_VFPF_MBOX0 * NAME_SIZE]; + if (pf->pcifunc) + snprintf(irq_name, NAME_SIZE, + "RVUPF%d_VF Mbox0", rvu_get_pf(pf->pcifunc)); + else + snprintf(irq_name, NAME_SIZE, "RVUPF_VF Mbox0"); + err = request_irq(pci_irq_vector(pf->pdev, RVU_PF_INT_VEC_VFPF_MBOX0), + otx2_pfvf_mbox_intr_handler, 0, irq_name, pf); + if (err) { + dev_err(pf->dev, + "RVUPF: IRQ registration failed for PFVF mbox0 irq\n"); + return err; + } + + if (numvfs > 64) { + /* Register MBOX1 interrupt handler */ + irq_name = &hw->irq_name[RVU_PF_INT_VEC_VFPF_MBOX1 * NAME_SIZE]; + if (pf->pcifunc) + snprintf(irq_name, NAME_SIZE, + "RVUPF%d_VF Mbox1", rvu_get_pf(pf->pcifunc)); + else + snprintf(irq_name, NAME_SIZE, "RVUPF_VF Mbox1"); + err = request_irq(pci_irq_vector(pf->pdev, + RVU_PF_INT_VEC_VFPF_MBOX1), + otx2_pfvf_mbox_intr_handler, + 0, irq_name, pf); + if (err) { + dev_err(pf->dev, + "RVUPF: IRQ registration failed for PFVF mbox1 irq\n"); + return err; + } + } + + otx2_enable_pfvf_mbox_intr(pf, numvfs); + + return 0; +} + +static void otx2_process_pfaf_mbox_msg(struct otx2_nic *pf, + struct mbox_msghdr *msg) +{ + int devid; + + if (msg->id >= MBOX_MSG_MAX) { + dev_err(pf->dev, + "Mbox msg with unknown ID 0x%x\n", msg->id); + return; + } + + if (msg->sig != OTX2_MBOX_RSP_SIG) { + dev_err(pf->dev, + "Mbox msg with wrong signature %x, ID 0x%x\n", + msg->sig, msg->id); + return; + } + + /* message response heading VF */ + devid = msg->pcifunc & RVU_PFVF_FUNC_MASK; + if (devid) { + struct otx2_vf_config *config = &pf->vf_configs[devid - 1]; + struct delayed_work *dwork; + + switch (msg->id) { + case MBOX_MSG_NIX_LF_START_RX: + config->intf_down = false; + dwork = &config->link_event_work; + schedule_delayed_work(dwork, msecs_to_jiffies(100)); + break; + case MBOX_MSG_NIX_LF_STOP_RX: + config->intf_down = true; + break; + } + + return; + } + + switch (msg->id) { + case MBOX_MSG_READY: + pf->pcifunc = msg->pcifunc; + break; + case MBOX_MSG_MSIX_OFFSET: + mbox_handler_msix_offset(pf, (struct msix_offset_rsp *)msg); + break; + case MBOX_MSG_NPA_LF_ALLOC: + mbox_handler_npa_lf_alloc(pf, (struct npa_lf_alloc_rsp *)msg); + break; + case MBOX_MSG_NIX_LF_ALLOC: + mbox_handler_nix_lf_alloc(pf, (struct nix_lf_alloc_rsp *)msg); + break; + case MBOX_MSG_NIX_BP_ENABLE: + mbox_handler_nix_bp_enable(pf, (struct nix_bp_cfg_rsp *)msg); + break; + case MBOX_MSG_CGX_STATS: + mbox_handler_cgx_stats(pf, (struct cgx_stats_rsp *)msg); + break; + case MBOX_MSG_CGX_FEC_STATS: + mbox_handler_cgx_fec_stats(pf, (struct cgx_fec_stats_rsp *)msg); + break; + default: + if (msg->rc) + dev_err(pf->dev, + "Mbox msg response has err %d, ID 0x%x\n", + msg->rc, msg->id); + break; + } +} + +static void otx2_pfaf_mbox_handler(struct work_struct *work) +{ + struct otx2_mbox_dev *mdev; + struct mbox_hdr *rsp_hdr; + struct mbox_msghdr *msg; + struct otx2_mbox *mbox; + struct mbox *af_mbox; + struct otx2_nic *pf; + int offset, id; + + af_mbox = container_of(work, struct mbox, mbox_wrk); + mbox = &af_mbox->mbox; + mdev = &mbox->dev[0]; + rsp_hdr = (struct mbox_hdr *)(mdev->mbase + mbox->rx_start); + + offset = mbox->rx_start + ALIGN(sizeof(*rsp_hdr), MBOX_MSG_ALIGN); + pf = af_mbox->pfvf; + + for (id = 0; id < af_mbox->num_msgs; id++) { + msg = (struct mbox_msghdr *)(mdev->mbase + offset); + otx2_process_pfaf_mbox_msg(pf, msg); + offset = mbox->rx_start + msg->next_msgoff; + if (mdev->msgs_acked == (af_mbox->num_msgs - 1)) + __otx2_mbox_reset(mbox, 0); + mdev->msgs_acked++; + } + +} + +static void otx2_handle_link_event(struct otx2_nic *pf) +{ + struct cgx_link_user_info *linfo = &pf->linfo; + struct net_device *netdev = pf->netdev; + + pr_info("%s NIC Link is %s %d Mbps %s duplex\n", netdev->name, + linfo->link_up ? "UP" : "DOWN", linfo->speed, + linfo->full_duplex ? "Full" : "Half"); + if (linfo->link_up) { + netif_carrier_on(netdev); + netif_tx_start_all_queues(netdev); + } else { + netif_tx_stop_all_queues(netdev); + netif_carrier_off(netdev); + } +} + +int otx2_mbox_up_handler_mcs_intr_notify(struct otx2_nic *pf, + struct mcs_intr_info *event, + struct msg_rsp *rsp) +{ + cn10k_handle_mcs_event(pf, event); + + return 0; +} + +int otx2_mbox_up_handler_cgx_link_event(struct otx2_nic *pf, + struct cgx_link_info_msg *msg, + struct msg_rsp *rsp) +{ + int i; + + /* Copy the link info sent by AF */ + pf->linfo = msg->link_info; + + /* notify VFs about link event */ + for (i = 0; i < pci_num_vf(pf->pdev); i++) { + struct otx2_vf_config *config = &pf->vf_configs[i]; + struct delayed_work *dwork = &config->link_event_work; + + if (config->intf_down) + continue; + + schedule_delayed_work(dwork, msecs_to_jiffies(100)); + } + + /* interface has not been fully configured yet */ + if (pf->flags & OTX2_FLAG_INTF_DOWN) + return 0; + + otx2_handle_link_event(pf); + return 0; +} + +static int otx2_process_mbox_msg_up(struct otx2_nic *pf, + struct mbox_msghdr *req) +{ + /* Check if valid, if not reply with a invalid msg */ + if (req->sig != OTX2_MBOX_REQ_SIG) { + otx2_reply_invalid_msg(&pf->mbox.mbox_up, 0, 0, req->id); + return -ENODEV; + } + + switch (req->id) { +#define M(_name, _id, _fn_name, _req_type, _rsp_type) \ + case _id: { \ + struct _rsp_type *rsp; \ + int err; \ + \ + rsp = (struct _rsp_type *)otx2_mbox_alloc_msg( \ + &pf->mbox.mbox_up, 0, \ + sizeof(struct _rsp_type)); \ + if (!rsp) \ + return -ENOMEM; \ + \ + rsp->hdr.id = _id; \ + rsp->hdr.sig = OTX2_MBOX_RSP_SIG; \ + rsp->hdr.pcifunc = 0; \ + rsp->hdr.rc = 0; \ + \ + err = otx2_mbox_up_handler_ ## _fn_name( \ + pf, (struct _req_type *)req, rsp); \ + return err; \ + } +MBOX_UP_CGX_MESSAGES +MBOX_UP_MCS_MESSAGES +#undef M + break; + default: + otx2_reply_invalid_msg(&pf->mbox.mbox_up, 0, 0, req->id); + return -ENODEV; + } + return 0; +} + +static void otx2_pfaf_mbox_up_handler(struct work_struct *work) +{ + struct mbox *af_mbox = container_of(work, struct mbox, mbox_up_wrk); + struct otx2_mbox *mbox = &af_mbox->mbox_up; + struct otx2_mbox_dev *mdev = &mbox->dev[0]; + struct otx2_nic *pf = af_mbox->pfvf; + int offset, id, devid = 0; + struct mbox_hdr *rsp_hdr; + struct mbox_msghdr *msg; + + rsp_hdr = (struct mbox_hdr *)(mdev->mbase + mbox->rx_start); + + offset = mbox->rx_start + ALIGN(sizeof(*rsp_hdr), MBOX_MSG_ALIGN); + + for (id = 0; id < af_mbox->up_num_msgs; id++) { + msg = (struct mbox_msghdr *)(mdev->mbase + offset); + + devid = msg->pcifunc & RVU_PFVF_FUNC_MASK; + /* Skip processing VF's messages */ + if (!devid) + otx2_process_mbox_msg_up(pf, msg); + offset = mbox->rx_start + msg->next_msgoff; + } + if (devid) { + otx2_forward_vf_mbox_msgs(pf, &pf->mbox.mbox_up, + MBOX_DIR_PFVF_UP, devid - 1, + af_mbox->up_num_msgs); + return; + } + + otx2_mbox_msg_send(mbox, 0); +} + +static irqreturn_t otx2_pfaf_mbox_intr_handler(int irq, void *pf_irq) +{ + struct otx2_nic *pf = (struct otx2_nic *)pf_irq; + struct mbox *mbox; + + /* Clear the IRQ */ + otx2_write64(pf, RVU_PF_INT, BIT_ULL(0)); + + mbox = &pf->mbox; + + trace_otx2_msg_interrupt(mbox->mbox.pdev, "AF to PF", BIT_ULL(0)); + + otx2_queue_work(mbox, pf->mbox_wq, 0, 1, 1, TYPE_PFAF); + + return IRQ_HANDLED; +} + +static void otx2_disable_mbox_intr(struct otx2_nic *pf) +{ + int vector = pci_irq_vector(pf->pdev, RVU_PF_INT_VEC_AFPF_MBOX); + + /* Disable AF => PF mailbox IRQ */ + otx2_write64(pf, RVU_PF_INT_ENA_W1C, BIT_ULL(0)); + free_irq(vector, pf); +} + +static int otx2_register_mbox_intr(struct otx2_nic *pf, bool probe_af) +{ + struct otx2_hw *hw = &pf->hw; + struct msg_req *req; + char *irq_name; + int err; + + /* Register mailbox interrupt handler */ + irq_name = &hw->irq_name[RVU_PF_INT_VEC_AFPF_MBOX * NAME_SIZE]; + snprintf(irq_name, NAME_SIZE, "RVUPFAF Mbox"); + err = request_irq(pci_irq_vector(pf->pdev, RVU_PF_INT_VEC_AFPF_MBOX), + otx2_pfaf_mbox_intr_handler, 0, irq_name, pf); + if (err) { + dev_err(pf->dev, + "RVUPF: IRQ registration failed for PFAF mbox irq\n"); + return err; + } + + /* Enable mailbox interrupt for msgs coming from AF. + * First clear to avoid spurious interrupts, if any. + */ + otx2_write64(pf, RVU_PF_INT, BIT_ULL(0)); + otx2_write64(pf, RVU_PF_INT_ENA_W1S, BIT_ULL(0)); + + if (!probe_af) + return 0; + + /* Check mailbox communication with AF */ + req = otx2_mbox_alloc_msg_ready(&pf->mbox); + if (!req) { + otx2_disable_mbox_intr(pf); + return -ENOMEM; + } + err = otx2_sync_mbox_msg(&pf->mbox); + if (err) { + dev_warn(pf->dev, + "AF not responding to mailbox, deferring probe\n"); + otx2_disable_mbox_intr(pf); + return -EPROBE_DEFER; + } + + return 0; +} + +static void otx2_pfaf_mbox_destroy(struct otx2_nic *pf) +{ + struct mbox *mbox = &pf->mbox; + + if (pf->mbox_wq) { + destroy_workqueue(pf->mbox_wq); + pf->mbox_wq = NULL; + } + + if (mbox->mbox.hwbase) + iounmap((void __iomem *)mbox->mbox.hwbase); + + otx2_mbox_destroy(&mbox->mbox); + otx2_mbox_destroy(&mbox->mbox_up); +} + +static int otx2_pfaf_mbox_init(struct otx2_nic *pf) +{ + struct mbox *mbox = &pf->mbox; + void __iomem *hwbase; + int err; + + mbox->pfvf = pf; + pf->mbox_wq = alloc_workqueue("otx2_pfaf_mailbox", + WQ_UNBOUND | WQ_HIGHPRI | + WQ_MEM_RECLAIM, 1); + if (!pf->mbox_wq) + return -ENOMEM; + + /* Mailbox is a reserved memory (in RAM) region shared between + * admin function (i.e AF) and this PF, shouldn't be mapped as + * device memory to allow unaligned accesses. + */ + hwbase = ioremap_wc(pci_resource_start(pf->pdev, PCI_MBOX_BAR_NUM), + MBOX_SIZE); + if (!hwbase) { + dev_err(pf->dev, "Unable to map PFAF mailbox region\n"); + err = -ENOMEM; + goto exit; + } + + err = otx2_mbox_init(&mbox->mbox, hwbase, pf->pdev, pf->reg_base, + MBOX_DIR_PFAF, 1); + if (err) + goto exit; + + err = otx2_mbox_init(&mbox->mbox_up, hwbase, pf->pdev, pf->reg_base, + MBOX_DIR_PFAF_UP, 1); + if (err) + goto exit; + + err = otx2_mbox_bbuf_init(mbox, pf->pdev); + if (err) + goto exit; + + INIT_WORK(&mbox->mbox_wrk, otx2_pfaf_mbox_handler); + INIT_WORK(&mbox->mbox_up_wrk, otx2_pfaf_mbox_up_handler); + mutex_init(&mbox->lock); + + return 0; +exit: + otx2_pfaf_mbox_destroy(pf); + return err; +} + +static int otx2_cgx_config_linkevents(struct otx2_nic *pf, bool enable) +{ + struct msg_req *msg; + int err; + + mutex_lock(&pf->mbox.lock); + if (enable) + msg = otx2_mbox_alloc_msg_cgx_start_linkevents(&pf->mbox); + else + msg = otx2_mbox_alloc_msg_cgx_stop_linkevents(&pf->mbox); + + if (!msg) { + mutex_unlock(&pf->mbox.lock); + return -ENOMEM; + } + + err = otx2_sync_mbox_msg(&pf->mbox); + mutex_unlock(&pf->mbox.lock); + return err; +} + +static int otx2_cgx_config_loopback(struct otx2_nic *pf, bool enable) +{ + struct msg_req *msg; + int err; + + if (enable && !bitmap_empty(pf->flow_cfg->dmacflt_bmap, + pf->flow_cfg->dmacflt_max_flows)) + netdev_warn(pf->netdev, + "CGX/RPM internal loopback might not work as DMAC filters are active\n"); + + mutex_lock(&pf->mbox.lock); + if (enable) + msg = otx2_mbox_alloc_msg_cgx_intlbk_enable(&pf->mbox); + else + msg = otx2_mbox_alloc_msg_cgx_intlbk_disable(&pf->mbox); + + if (!msg) { + mutex_unlock(&pf->mbox.lock); + return -ENOMEM; + } + + err = otx2_sync_mbox_msg(&pf->mbox); + mutex_unlock(&pf->mbox.lock); + return err; +} + +int otx2_set_real_num_queues(struct net_device *netdev, + int tx_queues, int rx_queues) +{ + int err; + + err = netif_set_real_num_tx_queues(netdev, tx_queues); + if (err) { + netdev_err(netdev, + "Failed to set no of Tx queues: %d\n", tx_queues); + return err; + } + + err = netif_set_real_num_rx_queues(netdev, rx_queues); + if (err) + netdev_err(netdev, + "Failed to set no of Rx queues: %d\n", rx_queues); + return err; +} +EXPORT_SYMBOL(otx2_set_real_num_queues); + +static char *nix_sqoperr_e_str[NIX_SQOPERR_MAX] = { + "NIX_SQOPERR_OOR", + "NIX_SQOPERR_CTX_FAULT", + "NIX_SQOPERR_CTX_POISON", + "NIX_SQOPERR_DISABLED", + "NIX_SQOPERR_SIZE_ERR", + "NIX_SQOPERR_OFLOW", + "NIX_SQOPERR_SQB_NULL", + "NIX_SQOPERR_SQB_FAULT", + "NIX_SQOPERR_SQE_SZ_ZERO", +}; + +static char *nix_mnqerr_e_str[NIX_MNQERR_MAX] = { + "NIX_MNQERR_SQ_CTX_FAULT", + "NIX_MNQERR_SQ_CTX_POISON", + "NIX_MNQERR_SQB_FAULT", + "NIX_MNQERR_SQB_POISON", + "NIX_MNQERR_TOTAL_ERR", + "NIX_MNQERR_LSO_ERR", + "NIX_MNQERR_CQ_QUERY_ERR", + "NIX_MNQERR_MAX_SQE_SIZE_ERR", + "NIX_MNQERR_MAXLEN_ERR", + "NIX_MNQERR_SQE_SIZEM1_ZERO", +}; + +static char *nix_snd_status_e_str[NIX_SND_STATUS_MAX] = { + [NIX_SND_STATUS_GOOD] = "NIX_SND_STATUS_GOOD", + [NIX_SND_STATUS_SQ_CTX_FAULT] = "NIX_SND_STATUS_SQ_CTX_FAULT", + [NIX_SND_STATUS_SQ_CTX_POISON] = "NIX_SND_STATUS_SQ_CTX_POISON", + [NIX_SND_STATUS_SQB_FAULT] = "NIX_SND_STATUS_SQB_FAULT", + [NIX_SND_STATUS_SQB_POISON] = "NIX_SND_STATUS_SQB_POISON", + [NIX_SND_STATUS_HDR_ERR] = "NIX_SND_STATUS_HDR_ERR", + [NIX_SND_STATUS_EXT_ERR] = "NIX_SND_STATUS_EXT_ERR", + [NIX_SND_STATUS_JUMP_FAULT] = "NIX_SND_STATUS_JUMP_FAULT", + [NIX_SND_STATUS_JUMP_POISON] = "NIX_SND_STATUS_JUMP_POISON", + [NIX_SND_STATUS_CRC_ERR] = "NIX_SND_STATUS_CRC_ERR", + [NIX_SND_STATUS_IMM_ERR] = "NIX_SND_STATUS_IMM_ERR", + [NIX_SND_STATUS_SG_ERR] = "NIX_SND_STATUS_SG_ERR", + [NIX_SND_STATUS_MEM_ERR] = "NIX_SND_STATUS_MEM_ERR", + [NIX_SND_STATUS_INVALID_SUBDC] = "NIX_SND_STATUS_INVALID_SUBDC", + [NIX_SND_STATUS_SUBDC_ORDER_ERR] = "NIX_SND_STATUS_SUBDC_ORDER_ERR", + [NIX_SND_STATUS_DATA_FAULT] = "NIX_SND_STATUS_DATA_FAULT", + [NIX_SND_STATUS_DATA_POISON] = "NIX_SND_STATUS_DATA_POISON", + [NIX_SND_STATUS_NPC_DROP_ACTION] = "NIX_SND_STATUS_NPC_DROP_ACTION", + [NIX_SND_STATUS_LOCK_VIOL] = "NIX_SND_STATUS_LOCK_VIOL", + [NIX_SND_STATUS_NPC_UCAST_CHAN_ERR] = "NIX_SND_STAT_NPC_UCAST_CHAN_ERR", + [NIX_SND_STATUS_NPC_MCAST_CHAN_ERR] = "NIX_SND_STAT_NPC_MCAST_CHAN_ERR", + [NIX_SND_STATUS_NPC_MCAST_ABORT] = "NIX_SND_STATUS_NPC_MCAST_ABORT", + [NIX_SND_STATUS_NPC_VTAG_PTR_ERR] = "NIX_SND_STATUS_NPC_VTAG_PTR_ERR", + [NIX_SND_STATUS_NPC_VTAG_SIZE_ERR] = "NIX_SND_STATUS_NPC_VTAG_SIZE_ERR", + [NIX_SND_STATUS_SEND_MEM_FAULT] = "NIX_SND_STATUS_SEND_MEM_FAULT", + [NIX_SND_STATUS_SEND_STATS_ERR] = "NIX_SND_STATUS_SEND_STATS_ERR", +}; + +static irqreturn_t otx2_q_intr_handler(int irq, void *data) +{ + struct otx2_nic *pf = data; + struct otx2_snd_queue *sq; + u64 val, *ptr; + u64 qidx = 0; + + /* CQ */ + for (qidx = 0; qidx < pf->qset.cq_cnt; qidx++) { + ptr = otx2_get_regaddr(pf, NIX_LF_CQ_OP_INT); + val = otx2_atomic64_add((qidx << 44), ptr); + + otx2_write64(pf, NIX_LF_CQ_OP_INT, (qidx << 44) | + (val & NIX_CQERRINT_BITS)); + if (!(val & (NIX_CQERRINT_BITS | BIT_ULL(42)))) + continue; + + if (val & BIT_ULL(42)) { + netdev_err(pf->netdev, + "CQ%lld: error reading NIX_LF_CQ_OP_INT, NIX_LF_ERR_INT 0x%llx\n", + qidx, otx2_read64(pf, NIX_LF_ERR_INT)); + } else { + if (val & BIT_ULL(NIX_CQERRINT_DOOR_ERR)) + netdev_err(pf->netdev, "CQ%lld: Doorbell error", + qidx); + if (val & BIT_ULL(NIX_CQERRINT_CQE_FAULT)) + netdev_err(pf->netdev, + "CQ%lld: Memory fault on CQE write to LLC/DRAM", + qidx); + } + + schedule_work(&pf->reset_task); + } + + /* SQ */ + for (qidx = 0; qidx < otx2_get_total_tx_queues(pf); qidx++) { + u64 sq_op_err_dbg, mnq_err_dbg, snd_err_dbg; + u8 sq_op_err_code, mnq_err_code, snd_err_code; + + sq = &pf->qset.sq[qidx]; + if (!sq->sqb_ptrs) + continue; + + /* Below debug registers captures first errors corresponding to + * those registers. We don't have to check against SQ qid as + * these are fatal errors. + */ + + ptr = otx2_get_regaddr(pf, NIX_LF_SQ_OP_INT); + val = otx2_atomic64_add((qidx << 44), ptr); + otx2_write64(pf, NIX_LF_SQ_OP_INT, (qidx << 44) | + (val & NIX_SQINT_BITS)); + + if (val & BIT_ULL(42)) { + netdev_err(pf->netdev, + "SQ%lld: error reading NIX_LF_SQ_OP_INT, NIX_LF_ERR_INT 0x%llx\n", + qidx, otx2_read64(pf, NIX_LF_ERR_INT)); + goto done; + } + + sq_op_err_dbg = otx2_read64(pf, NIX_LF_SQ_OP_ERR_DBG); + if (!(sq_op_err_dbg & BIT(44))) + goto chk_mnq_err_dbg; + + sq_op_err_code = FIELD_GET(GENMASK(7, 0), sq_op_err_dbg); + netdev_err(pf->netdev, + "SQ%lld: NIX_LF_SQ_OP_ERR_DBG(0x%llx) err=%s(%#x)\n", + qidx, sq_op_err_dbg, + nix_sqoperr_e_str[sq_op_err_code], + sq_op_err_code); + + otx2_write64(pf, NIX_LF_SQ_OP_ERR_DBG, BIT_ULL(44)); + + if (sq_op_err_code == NIX_SQOPERR_SQB_NULL) + goto chk_mnq_err_dbg; + + /* Err is not NIX_SQOPERR_SQB_NULL, call aq function to read SQ structure. + * TODO: But we are in irq context. How to call mbox functions which does sleep + */ + +chk_mnq_err_dbg: + mnq_err_dbg = otx2_read64(pf, NIX_LF_MNQ_ERR_DBG); + if (!(mnq_err_dbg & BIT(44))) + goto chk_snd_err_dbg; + + mnq_err_code = FIELD_GET(GENMASK(7, 0), mnq_err_dbg); + netdev_err(pf->netdev, + "SQ%lld: NIX_LF_MNQ_ERR_DBG(0x%llx) err=%s(%#x)\n", + qidx, mnq_err_dbg, nix_mnqerr_e_str[mnq_err_code], + mnq_err_code); + otx2_write64(pf, NIX_LF_MNQ_ERR_DBG, BIT_ULL(44)); + +chk_snd_err_dbg: + snd_err_dbg = otx2_read64(pf, NIX_LF_SEND_ERR_DBG); + if (snd_err_dbg & BIT(44)) { + snd_err_code = FIELD_GET(GENMASK(7, 0), snd_err_dbg); + netdev_err(pf->netdev, + "SQ%lld: NIX_LF_SND_ERR_DBG:0x%llx err=%s(%#x)\n", + qidx, snd_err_dbg, + nix_snd_status_e_str[snd_err_code], + snd_err_code); + otx2_write64(pf, NIX_LF_SEND_ERR_DBG, BIT_ULL(44)); + } + +done: + /* Print values and reset */ + if (val & BIT_ULL(NIX_SQINT_SQB_ALLOC_FAIL)) + netdev_err(pf->netdev, "SQ%lld: SQB allocation failed", + qidx); + + schedule_work(&pf->reset_task); + } + + return IRQ_HANDLED; +} + +static irqreturn_t otx2_cq_intr_handler(int irq, void *cq_irq) +{ + struct otx2_cq_poll *cq_poll = (struct otx2_cq_poll *)cq_irq; + struct otx2_nic *pf = (struct otx2_nic *)cq_poll->dev; + int qidx = cq_poll->cint_idx; + + /* Disable interrupts. + * + * Completion interrupts behave in a level-triggered interrupt + * fashion, and hence have to be cleared only after it is serviced. + */ + otx2_write64(pf, NIX_LF_CINTX_ENA_W1C(qidx), BIT_ULL(0)); + + /* Schedule NAPI */ + pf->napi_events++; + napi_schedule_irqoff(&cq_poll->napi); + + return IRQ_HANDLED; +} + +static void otx2_disable_napi(struct otx2_nic *pf) +{ + struct otx2_qset *qset = &pf->qset; + struct otx2_cq_poll *cq_poll; + int qidx; + + for (qidx = 0; qidx < pf->hw.cint_cnt; qidx++) { + cq_poll = &qset->napi[qidx]; + cancel_work_sync(&cq_poll->dim.work); + napi_disable(&cq_poll->napi); + netif_napi_del(&cq_poll->napi); + } +} + +static void otx2_free_cq_res(struct otx2_nic *pf) +{ + struct otx2_qset *qset = &pf->qset; + struct otx2_cq_queue *cq; + int qidx; + + /* Disable CQs */ + otx2_ctx_disable(&pf->mbox, NIX_AQ_CTYPE_CQ, false); + for (qidx = 0; qidx < qset->cq_cnt; qidx++) { + cq = &qset->cq[qidx]; + qmem_free(pf->dev, cq->cqe); + } +} + +static void otx2_free_sq_res(struct otx2_nic *pf) +{ + struct otx2_qset *qset = &pf->qset; + struct otx2_snd_queue *sq; + int qidx; + + /* Disable SQs */ + otx2_ctx_disable(&pf->mbox, NIX_AQ_CTYPE_SQ, false); + /* Free SQB pointers */ + otx2_sq_free_sqbs(pf); + for (qidx = 0; qidx < otx2_get_total_tx_queues(pf); qidx++) { + sq = &qset->sq[qidx]; + qmem_free(pf->dev, sq->sqe); + qmem_free(pf->dev, sq->tso_hdrs); + kfree(sq->sg); + kfree(sq->sqb_ptrs); + } +} + +static int otx2_get_rbuf_size(struct otx2_nic *pf, int mtu) +{ + int frame_size; + int total_size; + int rbuf_size; + + if (pf->hw.rbuf_len) + return ALIGN(pf->hw.rbuf_len, OTX2_ALIGN) + OTX2_HEAD_ROOM; + + /* The data transferred by NIX to memory consists of actual packet + * plus additional data which has timestamp and/or EDSA/HIGIG2 + * headers if interface is configured in corresponding modes. + * NIX transfers entire data using 6 segments/buffers and writes + * a CQE_RX descriptor with those segment addresses. First segment + * has additional data prepended to packet. Also software omits a + * headroom of 128 bytes in each segment. Hence the total size of + * memory needed to receive a packet with 'mtu' is: + * frame size = mtu + additional data; + * memory = frame_size + headroom * 6; + * each receive buffer size = memory / 6; + */ + frame_size = mtu + OTX2_ETH_HLEN + OTX2_HW_TIMESTAMP_LEN; + total_size = frame_size + OTX2_HEAD_ROOM * 6; + rbuf_size = total_size / 6; + + return ALIGN(rbuf_size, 2048); +} + +static int otx2_init_hw_resources(struct otx2_nic *pf) +{ + struct nix_lf_free_req *free_req; + struct mbox *mbox = &pf->mbox; + struct otx2_hw *hw = &pf->hw; + struct msg_req *req; + int err = 0, lvl; + + /* Set required NPA LF's pool counts + * Auras and Pools are used in a 1:1 mapping, + * so, aura count = pool count. + */ + hw->rqpool_cnt = hw->rx_queues; + hw->sqpool_cnt = otx2_get_total_tx_queues(pf); + hw->pool_cnt = hw->rqpool_cnt + hw->sqpool_cnt; + + /* Maximum hardware supported transmit length */ + pf->tx_max_pktlen = pf->netdev->max_mtu + OTX2_ETH_HLEN; + + pf->rbsize = otx2_get_rbuf_size(pf, pf->netdev->mtu); + + mutex_lock(&mbox->lock); + /* NPA init */ + err = otx2_config_npa(pf); + if (err) + goto exit; + + /* NIX init */ + err = otx2_config_nix(pf); + if (err) + goto err_free_npa_lf; + + /* Enable backpressure for CGX mapped PF/VFs */ + if (!is_otx2_lbkvf(pf->pdev)) + otx2_nix_config_bp(pf, true); + + /* Init Auras and pools used by NIX RQ, for free buffer ptrs */ + err = otx2_rq_aura_pool_init(pf); + if (err) { + mutex_unlock(&mbox->lock); + goto err_free_nix_lf; + } + /* Init Auras and pools used by NIX SQ, for queueing SQEs */ + err = otx2_sq_aura_pool_init(pf); + if (err) { + mutex_unlock(&mbox->lock); + goto err_free_rq_ptrs; + } + + err = otx2_txsch_alloc(pf); + if (err) { + mutex_unlock(&mbox->lock); + goto err_free_sq_ptrs; + } + +#ifdef CONFIG_DCB + if (pf->pfc_en) { + err = otx2_pfc_txschq_alloc(pf); + if (err) { + mutex_unlock(&mbox->lock); + goto err_free_sq_ptrs; + } + } +#endif + + err = otx2_config_nix_queues(pf); + if (err) { + mutex_unlock(&mbox->lock); + goto err_free_txsch; + } + + for (lvl = 0; lvl < NIX_TXSCH_LVL_CNT; lvl++) { + err = otx2_txschq_config(pf, lvl, 0, false); + if (err) { + mutex_unlock(&mbox->lock); + goto err_free_nix_queues; + } + } + +#ifdef CONFIG_DCB + if (pf->pfc_en) { + err = otx2_pfc_txschq_config(pf); + if (err) { + mutex_unlock(&mbox->lock); + goto err_free_nix_queues; + } + } +#endif + + mutex_unlock(&mbox->lock); + return err; + +err_free_nix_queues: + otx2_free_sq_res(pf); + otx2_free_cq_res(pf); + otx2_ctx_disable(mbox, NIX_AQ_CTYPE_RQ, false); +err_free_txsch: + otx2_txschq_stop(pf); +err_free_sq_ptrs: + otx2_sq_free_sqbs(pf); +err_free_rq_ptrs: + otx2_free_aura_ptr(pf, AURA_NIX_RQ); + otx2_ctx_disable(mbox, NPA_AQ_CTYPE_POOL, true); + otx2_ctx_disable(mbox, NPA_AQ_CTYPE_AURA, true); + otx2_aura_pool_free(pf); +err_free_nix_lf: + mutex_lock(&mbox->lock); + free_req = otx2_mbox_alloc_msg_nix_lf_free(mbox); + if (free_req) { + free_req->flags = NIX_LF_DISABLE_FLOWS; + if (otx2_sync_mbox_msg(mbox)) + dev_err(pf->dev, "%s failed to free nixlf\n", __func__); + } +err_free_npa_lf: + /* Reset NPA LF */ + req = otx2_mbox_alloc_msg_npa_lf_free(mbox); + if (req) { + if (otx2_sync_mbox_msg(mbox)) + dev_err(pf->dev, "%s failed to free npalf\n", __func__); + } +exit: + mutex_unlock(&mbox->lock); + return err; +} + +static void otx2_free_hw_resources(struct otx2_nic *pf) +{ + struct otx2_qset *qset = &pf->qset; + struct nix_lf_free_req *free_req; + struct mbox *mbox = &pf->mbox; + struct otx2_cq_queue *cq; + struct msg_req *req; + int qidx; + + /* Ensure all SQE are processed */ + otx2_sqb_flush(pf); + + /* Stop transmission */ + otx2_txschq_stop(pf); + +#ifdef CONFIG_DCB + if (pf->pfc_en) + otx2_pfc_txschq_stop(pf); +#endif + + mutex_lock(&mbox->lock); + /* Disable backpressure */ + if (!(pf->pcifunc & RVU_PFVF_FUNC_MASK)) + otx2_nix_config_bp(pf, false); + mutex_unlock(&mbox->lock); + + /* Disable RQs */ + otx2_ctx_disable(mbox, NIX_AQ_CTYPE_RQ, false); + + /*Dequeue all CQEs */ + for (qidx = 0; qidx < qset->cq_cnt; qidx++) { + cq = &qset->cq[qidx]; + if (cq->cq_type == CQ_RX) + otx2_cleanup_rx_cqes(pf, cq); + else + otx2_cleanup_tx_cqes(pf, cq); + } + otx2_free_pending_sqe(pf); + + otx2_free_sq_res(pf); + + /* Free RQ buffer pointers*/ + otx2_free_aura_ptr(pf, AURA_NIX_RQ); + + otx2_free_cq_res(pf); + + /* Free all ingress bandwidth profiles allocated */ + cn10k_free_all_ipolicers(pf); + + mutex_lock(&mbox->lock); + /* Reset NIX LF */ + free_req = otx2_mbox_alloc_msg_nix_lf_free(mbox); + if (free_req) { + free_req->flags = NIX_LF_DISABLE_FLOWS; + if (!(pf->flags & OTX2_FLAG_PF_SHUTDOWN)) + free_req->flags |= NIX_LF_DONT_FREE_TX_VTAG; + if (otx2_sync_mbox_msg(mbox)) + dev_err(pf->dev, "%s failed to free nixlf\n", __func__); + } + mutex_unlock(&mbox->lock); + + /* Disable NPA Pool and Aura hw context */ + otx2_ctx_disable(mbox, NPA_AQ_CTYPE_POOL, true); + otx2_ctx_disable(mbox, NPA_AQ_CTYPE_AURA, true); + otx2_aura_pool_free(pf); + + mutex_lock(&mbox->lock); + /* Reset NPA LF */ + req = otx2_mbox_alloc_msg_npa_lf_free(mbox); + if (req) { + if (otx2_sync_mbox_msg(mbox)) + dev_err(pf->dev, "%s failed to free npalf\n", __func__); + } + mutex_unlock(&mbox->lock); +} + +static bool otx2_promisc_use_mce_list(struct otx2_nic *pfvf) +{ + int vf; + + /* The AF driver will determine whether to allow the VF netdev or not */ + if (is_otx2_vf(pfvf->pcifunc)) + return true; + + /* check if there are any trusted VFs associated with the PF netdev */ + for (vf = 0; vf < pci_num_vf(pfvf->pdev); vf++) + if (pfvf->vf_configs[vf].trusted) + return true; + return false; +} + +static void otx2_do_set_rx_mode(struct otx2_nic *pf) +{ + struct net_device *netdev = pf->netdev; + struct nix_rx_mode *req; + bool promisc = false; + + if (!(netdev->flags & IFF_UP)) + return; + + if ((netdev->flags & IFF_PROMISC) || + (netdev_uc_count(netdev) > OTX2_MAX_UNICAST_FLOWS)) { + promisc = true; + } + + /* Write unicast address to mcam entries or del from mcam */ + if (!promisc && netdev->priv_flags & IFF_UNICAST_FLT) + __dev_uc_sync(netdev, otx2_add_macfilter, otx2_del_macfilter); + + mutex_lock(&pf->mbox.lock); + req = otx2_mbox_alloc_msg_nix_set_rx_mode(&pf->mbox); + if (!req) { + mutex_unlock(&pf->mbox.lock); + return; + } + + req->mode = NIX_RX_MODE_UCAST; + + if (promisc) + req->mode |= NIX_RX_MODE_PROMISC; + if (netdev->flags & (IFF_ALLMULTI | IFF_MULTICAST)) + req->mode |= NIX_RX_MODE_ALLMULTI; + + if (otx2_promisc_use_mce_list(pf)) + req->mode |= NIX_RX_MODE_USE_MCE; + + otx2_sync_mbox_msg(&pf->mbox); + mutex_unlock(&pf->mbox.lock); +} + +static void otx2_set_irq_coalesce(struct otx2_nic *pfvf) +{ + int cint; + + for (cint = 0; cint < pfvf->hw.cint_cnt; cint++) + otx2_config_irq_coalescing(pfvf, cint); +} + +static void otx2_dim_work(struct work_struct *w) +{ + struct dim_cq_moder cur_moder; + struct otx2_cq_poll *cq_poll; + struct otx2_nic *pfvf; + struct dim *dim; + + dim = container_of(w, struct dim, work); + cur_moder = net_dim_get_rx_moderation(dim->mode, dim->profile_ix); + cq_poll = container_of(dim, struct otx2_cq_poll, dim); + pfvf = (struct otx2_nic *)cq_poll->dev; + pfvf->hw.cq_time_wait = (cur_moder.usec > CQ_TIMER_THRESH_MAX) ? + CQ_TIMER_THRESH_MAX : cur_moder.usec; + pfvf->hw.cq_ecount_wait = (cur_moder.pkts > NAPI_POLL_WEIGHT) ? + NAPI_POLL_WEIGHT : cur_moder.pkts; + otx2_set_irq_coalesce(pfvf); + dim->state = DIM_START_MEASURE; +} + +int otx2_open(struct net_device *netdev) +{ + struct otx2_nic *pf = netdev_priv(netdev); + struct otx2_cq_poll *cq_poll = NULL; + struct otx2_qset *qset = &pf->qset; + int err = 0, qidx, vec; + char *irq_name; + + netif_carrier_off(netdev); + + /* RQ and SQs are mapped to different CQs, + * so find out max CQ IRQs (i.e CINTs) needed. + */ + pf->hw.cint_cnt = max3(pf->hw.rx_queues, pf->hw.tx_queues, + pf->hw.tc_tx_queues); + + pf->qset.cq_cnt = pf->hw.rx_queues + otx2_get_total_tx_queues(pf); + + qset->napi = kcalloc(pf->hw.cint_cnt, sizeof(*cq_poll), GFP_KERNEL); + if (!qset->napi) + return -ENOMEM; + + /* CQ size of RQ */ + qset->rqe_cnt = qset->rqe_cnt ? qset->rqe_cnt : Q_COUNT(Q_SIZE_256); + /* CQ size of SQ */ + qset->sqe_cnt = qset->sqe_cnt ? qset->sqe_cnt : Q_COUNT(Q_SIZE_4K); + + err = -ENOMEM; + qset->cq = kcalloc(pf->qset.cq_cnt, + sizeof(struct otx2_cq_queue), GFP_KERNEL); + if (!qset->cq) + goto err_free_mem; + + qset->sq = kcalloc(pf->hw.non_qos_queues, + sizeof(struct otx2_snd_queue), GFP_KERNEL); + if (!qset->sq) + goto err_free_mem; + + qset->rq = kcalloc(pf->hw.rx_queues, + sizeof(struct otx2_rcv_queue), GFP_KERNEL); + if (!qset->rq) + goto err_free_mem; + + err = otx2_init_hw_resources(pf); + if (err) + goto err_free_mem; + + /* Register NAPI handler */ + for (qidx = 0; qidx < pf->hw.cint_cnt; qidx++) { + cq_poll = &qset->napi[qidx]; + cq_poll->cint_idx = qidx; + /* RQ0 & SQ0 are mapped to CINT0 and so on.. + * 'cq_ids[0]' points to RQ's CQ and + * 'cq_ids[1]' points to SQ's CQ and + * 'cq_ids[2]' points to XDP's CQ and + */ + cq_poll->cq_ids[CQ_RX] = + (qidx < pf->hw.rx_queues) ? qidx : CINT_INVALID_CQ; + cq_poll->cq_ids[CQ_TX] = (qidx < pf->hw.tx_queues) ? + qidx + pf->hw.rx_queues : CINT_INVALID_CQ; + if (pf->xdp_prog) + cq_poll->cq_ids[CQ_XDP] = (qidx < pf->hw.xdp_queues) ? + (qidx + pf->hw.rx_queues + + pf->hw.tx_queues) : + CINT_INVALID_CQ; + else + cq_poll->cq_ids[CQ_XDP] = CINT_INVALID_CQ; + + cq_poll->cq_ids[CQ_QOS] = (qidx < pf->hw.tc_tx_queues) ? + (qidx + pf->hw.rx_queues + + pf->hw.non_qos_queues) : + CINT_INVALID_CQ; + + cq_poll->dev = (void *)pf; + cq_poll->dim.mode = DIM_CQ_PERIOD_MODE_START_FROM_CQE; + INIT_WORK(&cq_poll->dim.work, otx2_dim_work); + netif_napi_add(netdev, &cq_poll->napi, otx2_napi_handler); + napi_enable(&cq_poll->napi); + } + + /* Set maximum frame size allowed in HW */ + err = otx2_hw_set_mtu(pf, netdev->mtu); + if (err) + goto err_disable_napi; + + /* Setup segmentation algorithms, if failed, clear offload capability */ + otx2_setup_segmentation(pf); + + /* Initialize RSS */ + err = otx2_rss_init(pf); + if (err) + goto err_disable_napi; + + /* Register Queue IRQ handlers */ + vec = pf->hw.nix_msixoff + NIX_LF_QINT_VEC_START; + irq_name = &pf->hw.irq_name[vec * NAME_SIZE]; + + snprintf(irq_name, NAME_SIZE, "%s-qerr", pf->netdev->name); + + err = request_irq(pci_irq_vector(pf->pdev, vec), + otx2_q_intr_handler, 0, irq_name, pf); + if (err) { + dev_err(pf->dev, + "RVUPF%d: IRQ registration failed for QERR\n", + rvu_get_pf(pf->pcifunc)); + goto err_disable_napi; + } + + /* Enable QINT IRQ */ + otx2_write64(pf, NIX_LF_QINTX_ENA_W1S(0), BIT_ULL(0)); + + /* Register CQ IRQ handlers */ + vec = pf->hw.nix_msixoff + NIX_LF_CINT_VEC_START; + for (qidx = 0; qidx < pf->hw.cint_cnt; qidx++) { + irq_name = &pf->hw.irq_name[vec * NAME_SIZE]; + + snprintf(irq_name, NAME_SIZE, "%s-rxtx-%d", pf->netdev->name, + qidx); + + err = request_irq(pci_irq_vector(pf->pdev, vec), + otx2_cq_intr_handler, 0, irq_name, + &qset->napi[qidx]); + if (err) { + dev_err(pf->dev, + "RVUPF%d: IRQ registration failed for CQ%d\n", + rvu_get_pf(pf->pcifunc), qidx); + goto err_free_cints; + } + vec++; + + otx2_config_irq_coalescing(pf, qidx); + + /* Enable CQ IRQ */ + otx2_write64(pf, NIX_LF_CINTX_INT(qidx), BIT_ULL(0)); + otx2_write64(pf, NIX_LF_CINTX_ENA_W1S(qidx), BIT_ULL(0)); + } + + otx2_set_cints_affinity(pf); + + if (pf->flags & OTX2_FLAG_RX_VLAN_SUPPORT) + otx2_enable_rxvlan(pf, true); + + /* When reinitializing enable time stamping if it is enabled before */ + if (pf->flags & OTX2_FLAG_TX_TSTAMP_ENABLED) { + pf->flags &= ~OTX2_FLAG_TX_TSTAMP_ENABLED; + otx2_config_hw_tx_tstamp(pf, true); + } + if (pf->flags & OTX2_FLAG_RX_TSTAMP_ENABLED) { + pf->flags &= ~OTX2_FLAG_RX_TSTAMP_ENABLED; + otx2_config_hw_rx_tstamp(pf, true); + } + + pf->flags &= ~OTX2_FLAG_INTF_DOWN; + /* 'intf_down' may be checked on any cpu */ + smp_wmb(); + + /* we have already received link status notification */ + if (pf->linfo.link_up && !(pf->pcifunc & RVU_PFVF_FUNC_MASK)) + otx2_handle_link_event(pf); + + /* Install DMAC Filters */ + if (pf->flags & OTX2_FLAG_DMACFLTR_SUPPORT) + otx2_dmacflt_reinstall_flows(pf); + + otx2_tc_apply_ingress_police_rules(pf); + + err = otx2_rxtx_enable(pf, true); + /* If a mbox communication error happens at this point then interface + * will end up in a state such that it is in down state but hardware + * mcam entries are enabled to receive the packets. Hence disable the + * packet I/O. + */ + if (err == EIO) + goto err_disable_rxtx; + else if (err) + goto err_tx_stop_queues; + + otx2_do_set_rx_mode(pf); + + return 0; + +err_disable_rxtx: + otx2_rxtx_enable(pf, false); +err_tx_stop_queues: + netif_tx_stop_all_queues(netdev); + netif_carrier_off(netdev); + pf->flags |= OTX2_FLAG_INTF_DOWN; +err_free_cints: + otx2_free_cints(pf, qidx); + vec = pci_irq_vector(pf->pdev, + pf->hw.nix_msixoff + NIX_LF_QINT_VEC_START); + otx2_write64(pf, NIX_LF_QINTX_ENA_W1C(0), BIT_ULL(0)); + free_irq(vec, pf); +err_disable_napi: + otx2_disable_napi(pf); + otx2_free_hw_resources(pf); +err_free_mem: + kfree(qset->sq); + kfree(qset->cq); + kfree(qset->rq); + kfree(qset->napi); + return err; +} +EXPORT_SYMBOL(otx2_open); + +int otx2_stop(struct net_device *netdev) +{ + struct otx2_nic *pf = netdev_priv(netdev); + struct otx2_cq_poll *cq_poll = NULL; + struct otx2_qset *qset = &pf->qset; + struct otx2_rss_info *rss; + int qidx, vec, wrk; + + /* If the DOWN flag is set resources are already freed */ + if (pf->flags & OTX2_FLAG_INTF_DOWN) + return 0; + + netif_carrier_off(netdev); + netif_tx_stop_all_queues(netdev); + + pf->flags |= OTX2_FLAG_INTF_DOWN; + /* 'intf_down' may be checked on any cpu */ + smp_wmb(); + + /* First stop packet Rx/Tx */ + otx2_rxtx_enable(pf, false); + + /* Clear RSS enable flag */ + rss = &pf->hw.rss_info; + rss->enable = false; + if (!netif_is_rxfh_configured(netdev)) + kfree(rss->rss_ctx[DEFAULT_RSS_CONTEXT_GROUP]); + + /* Cleanup Queue IRQ */ + vec = pci_irq_vector(pf->pdev, + pf->hw.nix_msixoff + NIX_LF_QINT_VEC_START); + otx2_write64(pf, NIX_LF_QINTX_ENA_W1C(0), BIT_ULL(0)); + free_irq(vec, pf); + + /* Cleanup CQ NAPI and IRQ */ + vec = pf->hw.nix_msixoff + NIX_LF_CINT_VEC_START; + for (qidx = 0; qidx < pf->hw.cint_cnt; qidx++) { + /* Disable interrupt */ + otx2_write64(pf, NIX_LF_CINTX_ENA_W1C(qidx), BIT_ULL(0)); + + synchronize_irq(pci_irq_vector(pf->pdev, vec)); + + cq_poll = &qset->napi[qidx]; + napi_synchronize(&cq_poll->napi); + vec++; + } + + netif_tx_disable(netdev); + + otx2_free_hw_resources(pf); + otx2_free_cints(pf, pf->hw.cint_cnt); + otx2_disable_napi(pf); + + for (qidx = 0; qidx < netdev->num_tx_queues; qidx++) + netdev_tx_reset_queue(netdev_get_tx_queue(netdev, qidx)); + + for (wrk = 0; wrk < pf->qset.cq_cnt; wrk++) + cancel_delayed_work_sync(&pf->refill_wrk[wrk].pool_refill_work); + devm_kfree(pf->dev, pf->refill_wrk); + + kfree(qset->sq); + kfree(qset->cq); + kfree(qset->rq); + kfree(qset->napi); + /* Do not clear RQ/SQ ringsize settings */ + memset_startat(qset, 0, sqe_cnt); + return 0; +} +EXPORT_SYMBOL(otx2_stop); + +static netdev_tx_t otx2_xmit(struct sk_buff *skb, struct net_device *netdev) +{ + struct otx2_nic *pf = netdev_priv(netdev); + int qidx = skb_get_queue_mapping(skb); + struct otx2_snd_queue *sq; + struct netdev_queue *txq; + int sq_idx; + + /* XDP SQs are not mapped with TXQs + * advance qid to derive correct sq mapped with QOS + */ + sq_idx = (qidx >= pf->hw.tx_queues) ? (qidx + pf->hw.xdp_queues) : qidx; + + /* Check for minimum and maximum packet length */ + if (skb->len <= ETH_HLEN || + (!skb_shinfo(skb)->gso_size && skb->len > pf->tx_max_pktlen)) { + dev_kfree_skb(skb); + return NETDEV_TX_OK; + } + + sq = &pf->qset.sq[sq_idx]; + txq = netdev_get_tx_queue(netdev, qidx); + + if (!otx2_sq_append_skb(netdev, sq, skb, qidx)) { + netif_tx_stop_queue(txq); + + /* Check again, incase SQBs got freed up */ + smp_mb(); + if (((sq->num_sqbs - *sq->aura_fc_addr) * sq->sqe_per_sqb) + > sq->sqe_thresh) + netif_tx_wake_queue(txq); + + return NETDEV_TX_BUSY; + } + + return NETDEV_TX_OK; +} + +u16 otx2_select_queue(struct net_device *netdev, struct sk_buff *skb, + struct net_device *sb_dev) +{ +#ifdef CONFIG_DCB + struct otx2_nic *pf = netdev_priv(netdev); + u8 vlan_prio; +#endif + +#ifdef CONFIG_DCB + if (!skb->vlan_present) + goto pick_tx; + + vlan_prio = skb->vlan_tci >> 13; + if ((vlan_prio > pf->hw.tx_queues - 1) || + !pf->pfc_alloc_status[vlan_prio]) + goto pick_tx; + + return vlan_prio; + +pick_tx: +#endif + return netdev_pick_tx(netdev, skb, NULL); +} +EXPORT_SYMBOL(otx2_select_queue); + +static netdev_features_t otx2_fix_features(struct net_device *dev, + netdev_features_t features) +{ + if (features & NETIF_F_HW_VLAN_CTAG_RX) + features |= NETIF_F_HW_VLAN_STAG_RX; + else + features &= ~NETIF_F_HW_VLAN_STAG_RX; + + return features; +} + +static void otx2_set_rx_mode(struct net_device *netdev) +{ + struct otx2_nic *pf = netdev_priv(netdev); + + queue_work(pf->otx2_wq, &pf->rx_mode_work); +} + +static void otx2_rx_mode_wrk_handler(struct work_struct *work) +{ + struct otx2_nic *pf = container_of(work, struct otx2_nic, rx_mode_work); + + otx2_do_set_rx_mode(pf); +} + +static int otx2_set_features(struct net_device *netdev, + netdev_features_t features) +{ + netdev_features_t changed = features ^ netdev->features; + struct otx2_nic *pf = netdev_priv(netdev); + + if ((changed & NETIF_F_LOOPBACK) && netif_running(netdev)) + return otx2_cgx_config_loopback(pf, + features & NETIF_F_LOOPBACK); + + if ((changed & NETIF_F_HW_VLAN_CTAG_RX) && netif_running(netdev)) + return otx2_enable_rxvlan(pf, + features & NETIF_F_HW_VLAN_CTAG_RX); + + return otx2_handle_ntuple_tc_features(netdev, features); +} + +static void otx2_reset_task(struct work_struct *work) +{ + struct otx2_nic *pf = container_of(work, struct otx2_nic, reset_task); + + if (!netif_running(pf->netdev)) + return; + + rtnl_lock(); + otx2_stop(pf->netdev); + pf->reset_count++; + otx2_open(pf->netdev); + netif_trans_update(pf->netdev); + rtnl_unlock(); +} + +static int otx2_config_hw_rx_tstamp(struct otx2_nic *pfvf, bool enable) +{ + struct msg_req *req; + int err; + + if (pfvf->flags & OTX2_FLAG_RX_TSTAMP_ENABLED && enable) + return 0; + + mutex_lock(&pfvf->mbox.lock); + if (enable) + req = otx2_mbox_alloc_msg_cgx_ptp_rx_enable(&pfvf->mbox); + else + req = otx2_mbox_alloc_msg_cgx_ptp_rx_disable(&pfvf->mbox); + if (!req) { + mutex_unlock(&pfvf->mbox.lock); + return -ENOMEM; + } + + err = otx2_sync_mbox_msg(&pfvf->mbox); + if (err) { + mutex_unlock(&pfvf->mbox.lock); + return err; + } + + mutex_unlock(&pfvf->mbox.lock); + if (enable) + pfvf->flags |= OTX2_FLAG_RX_TSTAMP_ENABLED; + else + pfvf->flags &= ~OTX2_FLAG_RX_TSTAMP_ENABLED; + return 0; +} + +static int otx2_config_hw_tx_tstamp(struct otx2_nic *pfvf, bool enable) +{ + struct msg_req *req; + int err; + + if (pfvf->flags & OTX2_FLAG_TX_TSTAMP_ENABLED && enable) + return 0; + + mutex_lock(&pfvf->mbox.lock); + if (enable) + req = otx2_mbox_alloc_msg_nix_lf_ptp_tx_enable(&pfvf->mbox); + else + req = otx2_mbox_alloc_msg_nix_lf_ptp_tx_disable(&pfvf->mbox); + if (!req) { + mutex_unlock(&pfvf->mbox.lock); + return -ENOMEM; + } + + err = otx2_sync_mbox_msg(&pfvf->mbox); + if (err) { + mutex_unlock(&pfvf->mbox.lock); + return err; + } + + mutex_unlock(&pfvf->mbox.lock); + if (enable) + pfvf->flags |= OTX2_FLAG_TX_TSTAMP_ENABLED; + else + pfvf->flags &= ~OTX2_FLAG_TX_TSTAMP_ENABLED; + return 0; +} + +int otx2_config_hwtstamp(struct net_device *netdev, struct ifreq *ifr) +{ + struct otx2_nic *pfvf = netdev_priv(netdev); + struct hwtstamp_config config; + + if (!pfvf->ptp) + return -ENODEV; + + if (copy_from_user(&config, ifr->ifr_data, sizeof(config))) + return -EFAULT; + + switch (config.tx_type) { + case HWTSTAMP_TX_OFF: + if (pfvf->flags & OTX2_FLAG_PTP_ONESTEP_SYNC) + pfvf->flags &= ~OTX2_FLAG_PTP_ONESTEP_SYNC; + + cancel_delayed_work(&pfvf->ptp->synctstamp_work); + otx2_config_hw_tx_tstamp(pfvf, false); + break; + case HWTSTAMP_TX_ONESTEP_SYNC: + if (!test_bit(CN10K_PTP_ONESTEP, &pfvf->hw.cap_flag)) + return -ERANGE; + pfvf->flags |= OTX2_FLAG_PTP_ONESTEP_SYNC; + schedule_delayed_work(&pfvf->ptp->synctstamp_work, + msecs_to_jiffies(500)); + fallthrough; + case HWTSTAMP_TX_ON: + otx2_config_hw_tx_tstamp(pfvf, true); + break; + default: + return -ERANGE; + } + + switch (config.rx_filter) { + case HWTSTAMP_FILTER_NONE: + otx2_config_hw_rx_tstamp(pfvf, false); + break; + case HWTSTAMP_FILTER_ALL: + case HWTSTAMP_FILTER_SOME: + case HWTSTAMP_FILTER_PTP_V1_L4_EVENT: + case HWTSTAMP_FILTER_PTP_V1_L4_SYNC: + case HWTSTAMP_FILTER_PTP_V1_L4_DELAY_REQ: + case HWTSTAMP_FILTER_PTP_V2_L4_EVENT: + case HWTSTAMP_FILTER_PTP_V2_L4_SYNC: + case HWTSTAMP_FILTER_PTP_V2_L4_DELAY_REQ: + case HWTSTAMP_FILTER_PTP_V2_L2_EVENT: + case HWTSTAMP_FILTER_PTP_V2_L2_SYNC: + case HWTSTAMP_FILTER_PTP_V2_L2_DELAY_REQ: + case HWTSTAMP_FILTER_PTP_V2_EVENT: + case HWTSTAMP_FILTER_PTP_V2_SYNC: + case HWTSTAMP_FILTER_PTP_V2_DELAY_REQ: + otx2_config_hw_rx_tstamp(pfvf, true); + config.rx_filter = HWTSTAMP_FILTER_ALL; + break; + default: + return -ERANGE; + } + + memcpy(&pfvf->tstamp, &config, sizeof(config)); + + return copy_to_user(ifr->ifr_data, &config, + sizeof(config)) ? -EFAULT : 0; +} +EXPORT_SYMBOL(otx2_config_hwtstamp); + +int otx2_ioctl(struct net_device *netdev, struct ifreq *req, int cmd) +{ + struct otx2_nic *pfvf = netdev_priv(netdev); + struct hwtstamp_config *cfg = &pfvf->tstamp; + + switch (cmd) { + case SIOCSHWTSTAMP: + return otx2_config_hwtstamp(netdev, req); + case SIOCGHWTSTAMP: + return copy_to_user(req->ifr_data, cfg, + sizeof(*cfg)) ? -EFAULT : 0; + default: + return -EOPNOTSUPP; + } +} +EXPORT_SYMBOL(otx2_ioctl); + +static int otx2_do_set_vf_mac(struct otx2_nic *pf, int vf, const u8 *mac) +{ + struct npc_install_flow_req *req; + int err; + + mutex_lock(&pf->mbox.lock); + req = otx2_mbox_alloc_msg_npc_install_flow(&pf->mbox); + if (!req) { + err = -ENOMEM; + goto out; + } + + ether_addr_copy(req->packet.dmac, mac); + eth_broadcast_addr((u8 *)&req->mask.dmac); + req->features = BIT_ULL(NPC_DMAC); + req->channel = pf->hw.rx_chan_base; + req->intf = NIX_INTF_RX; + req->default_rule = 1; + req->append = 1; + req->vf = vf + 1; + req->op = NIX_RX_ACTION_DEFAULT; + + err = otx2_sync_mbox_msg(&pf->mbox); +out: + mutex_unlock(&pf->mbox.lock); + return err; +} + +static int otx2_set_vf_mac(struct net_device *netdev, int vf, u8 *mac) +{ + struct otx2_nic *pf = netdev_priv(netdev); + struct pci_dev *pdev = pf->pdev; + struct otx2_vf_config *config; + int ret; + + if (!netif_running(netdev)) + return -EAGAIN; + + if (vf >= pf->total_vfs) + return -EINVAL; + + if (!is_valid_ether_addr(mac)) + return -EINVAL; + + config = &pf->vf_configs[vf]; + ether_addr_copy(config->mac, mac); + + ret = otx2_do_set_vf_mac(pf, vf, mac); + if (ret == 0) + dev_info(&pdev->dev, + "Load/Reload VF driver\n"); + + return ret; +} + +static int otx2_do_set_vf_vlan(struct otx2_nic *pf, int vf, u16 vlan, u8 qos, + __be16 proto) +{ + struct otx2_flow_config *flow_cfg = pf->flow_cfg; + struct nix_vtag_config_rsp *vtag_rsp; + struct npc_delete_flow_req *del_req; + struct nix_vtag_config *vtag_req; + struct npc_install_flow_req *req; + struct otx2_vf_config *config; + int err = 0; + u32 idx; + + config = &pf->vf_configs[vf]; + + if (!vlan && !config->vlan) + goto out; + + mutex_lock(&pf->mbox.lock); + + /* free old tx vtag entry */ + if (config->vlan) { + vtag_req = otx2_mbox_alloc_msg_nix_vtag_cfg(&pf->mbox); + if (!vtag_req) { + err = -ENOMEM; + goto out; + } + vtag_req->cfg_type = 0; + vtag_req->tx.free_vtag0 = 1; + vtag_req->tx.vtag0_idx = config->tx_vtag_idx; + + err = otx2_sync_mbox_msg(&pf->mbox); + if (err) + goto out; + } + + if (!vlan && config->vlan) { + /* rx */ + del_req = otx2_mbox_alloc_msg_npc_delete_flow(&pf->mbox); + if (!del_req) { + err = -ENOMEM; + goto out; + } + idx = ((vf * OTX2_PER_VF_VLAN_FLOWS) + OTX2_VF_VLAN_RX_INDEX); + del_req->entry = + flow_cfg->def_ent[flow_cfg->vf_vlan_offset + idx]; + err = otx2_sync_mbox_msg(&pf->mbox); + if (err) + goto out; + + /* tx */ + del_req = otx2_mbox_alloc_msg_npc_delete_flow(&pf->mbox); + if (!del_req) { + err = -ENOMEM; + goto out; + } + idx = ((vf * OTX2_PER_VF_VLAN_FLOWS) + OTX2_VF_VLAN_TX_INDEX); + del_req->entry = + flow_cfg->def_ent[flow_cfg->vf_vlan_offset + idx]; + err = otx2_sync_mbox_msg(&pf->mbox); + + goto out; + } + + /* rx */ + req = otx2_mbox_alloc_msg_npc_install_flow(&pf->mbox); + if (!req) { + err = -ENOMEM; + goto out; + } + + idx = ((vf * OTX2_PER_VF_VLAN_FLOWS) + OTX2_VF_VLAN_RX_INDEX); + req->entry = flow_cfg->def_ent[flow_cfg->vf_vlan_offset + idx]; + req->packet.vlan_tci = htons(vlan); + req->mask.vlan_tci = htons(VLAN_VID_MASK); + /* af fills the destination mac addr */ + eth_broadcast_addr((u8 *)&req->mask.dmac); + req->features = BIT_ULL(NPC_OUTER_VID) | BIT_ULL(NPC_DMAC); + req->channel = pf->hw.rx_chan_base; + req->intf = NIX_INTF_RX; + req->vf = vf + 1; + req->op = NIX_RX_ACTION_DEFAULT; + req->vtag0_valid = true; + req->vtag0_type = NIX_AF_LFX_RX_VTAG_TYPE7; + req->set_cntr = 1; + + err = otx2_sync_mbox_msg(&pf->mbox); + if (err) + goto out; + + /* tx */ + vtag_req = otx2_mbox_alloc_msg_nix_vtag_cfg(&pf->mbox); + if (!vtag_req) { + err = -ENOMEM; + goto out; + } + + /* configure tx vtag params */ + vtag_req->vtag_size = VTAGSIZE_T4; + vtag_req->cfg_type = 0; /* tx vlan cfg */ + vtag_req->tx.cfg_vtag0 = 1; + vtag_req->tx.vtag0 = ((u64)ntohs(proto) << 16) | vlan; + + err = otx2_sync_mbox_msg(&pf->mbox); + if (err) + goto out; + + vtag_rsp = (struct nix_vtag_config_rsp *)otx2_mbox_get_rsp + (&pf->mbox.mbox, 0, &vtag_req->hdr); + if (IS_ERR(vtag_rsp)) { + err = PTR_ERR(vtag_rsp); + goto out; + } + config->tx_vtag_idx = vtag_rsp->vtag0_idx; + + req = otx2_mbox_alloc_msg_npc_install_flow(&pf->mbox); + if (!req) { + err = -ENOMEM; + goto out; + } + + eth_zero_addr((u8 *)&req->mask.dmac); + idx = ((vf * OTX2_PER_VF_VLAN_FLOWS) + OTX2_VF_VLAN_TX_INDEX); + req->entry = flow_cfg->def_ent[flow_cfg->vf_vlan_offset + idx]; + req->features = BIT_ULL(NPC_DMAC); + req->channel = pf->hw.tx_chan_base; + req->intf = NIX_INTF_TX; + req->vf = vf + 1; + req->op = NIX_TX_ACTIONOP_UCAST_DEFAULT; + req->vtag0_def = vtag_rsp->vtag0_idx; + req->vtag0_op = VTAG_INSERT; + req->set_cntr = 1; + + err = otx2_sync_mbox_msg(&pf->mbox); +out: + config->vlan = vlan; + mutex_unlock(&pf->mbox.lock); + return err; +} + +static int otx2_set_vf_vlan(struct net_device *netdev, int vf, u16 vlan, u8 qos, + __be16 proto) +{ + struct otx2_nic *pf = netdev_priv(netdev); + struct pci_dev *pdev = pf->pdev; + + if (!netif_running(netdev)) + return -EAGAIN; + + if (vf >= pci_num_vf(pdev)) + return -EINVAL; + + /* qos is currently unsupported */ + if (vlan >= VLAN_N_VID || qos) + return -EINVAL; + + if (proto != htons(ETH_P_8021Q)) + return -EPROTONOSUPPORT; + + if (!(pf->flags & OTX2_FLAG_VF_VLAN_SUPPORT)) + return -EOPNOTSUPP; + + return otx2_do_set_vf_vlan(pf, vf, vlan, qos, proto); +} + +static int otx2_get_vf_config(struct net_device *netdev, int vf, + struct ifla_vf_info *ivi) +{ + struct otx2_nic *pf = netdev_priv(netdev); + struct pci_dev *pdev = pf->pdev; + struct otx2_vf_config *config; + + if (!netif_running(netdev)) + return -EAGAIN; + + if (vf >= pci_num_vf(pdev)) + return -EINVAL; + + config = &pf->vf_configs[vf]; + ivi->vf = vf; + ether_addr_copy(ivi->mac, config->mac); + ivi->vlan = config->vlan; + ivi->trusted = config->trusted; + + return 0; +} + +static int otx2_xdp_xmit_tx(struct otx2_nic *pf, struct xdp_frame *xdpf, + int qidx) +{ + struct page *page; + u64 dma_addr; + int err = 0; + + dma_addr = otx2_dma_map_page(pf, virt_to_page(xdpf->data), + offset_in_page(xdpf->data), xdpf->len, + DMA_TO_DEVICE); + if (dma_mapping_error(pf->dev, dma_addr)) + return -ENOMEM; + + err = otx2_xdp_sq_append_pkt(pf, dma_addr, xdpf->len, qidx); + if (!err) { + otx2_dma_unmap_page(pf, dma_addr, xdpf->len, DMA_TO_DEVICE); + page = virt_to_page(xdpf->data); + put_page(page); + return -ENOMEM; + } + return 0; +} + +static int otx2_xdp_xmit(struct net_device *netdev, int n, + struct xdp_frame **frames, u32 flags) +{ + struct otx2_nic *pf = netdev_priv(netdev); + int qidx = smp_processor_id(); + struct otx2_snd_queue *sq; + int drops = 0, i; + + if (!netif_running(netdev)) + return -ENETDOWN; + + qidx += pf->hw.tx_queues; + sq = pf->xdp_prog ? &pf->qset.sq[qidx] : NULL; + + /* Abort xmit if xdp queue is not */ + if (unlikely(!sq)) + return -ENXIO; + + if (unlikely(flags & ~XDP_XMIT_FLAGS_MASK)) + return -EINVAL; + + for (i = 0; i < n; i++) { + struct xdp_frame *xdpf = frames[i]; + int err; + + err = otx2_xdp_xmit_tx(pf, xdpf, qidx); + if (err) + drops++; + } + return n - drops; +} + +static int otx2_xdp_setup(struct otx2_nic *pf, struct bpf_prog *prog) +{ + struct net_device *dev = pf->netdev; + bool if_up = netif_running(pf->netdev); + struct bpf_prog *old_prog; + + if (prog && dev->mtu > MAX_XDP_MTU) { + netdev_warn(dev, "Jumbo frames not yet supported with XDP\n"); + return -EOPNOTSUPP; + } + + if (if_up) + otx2_stop(pf->netdev); + + old_prog = xchg(&pf->xdp_prog, prog); + + if (old_prog) + bpf_prog_put(old_prog); + + if (pf->xdp_prog) + bpf_prog_add(pf->xdp_prog, pf->hw.rx_queues - 1); + + /* Network stack and XDP shared same rx queues. + * Use separate tx queues for XDP and network stack. + */ + if (pf->xdp_prog) + pf->hw.xdp_queues = pf->hw.rx_queues; + else + pf->hw.xdp_queues = 0; + + pf->hw.non_qos_queues += pf->hw.xdp_queues; + + if (if_up) + otx2_open(pf->netdev); + + return 0; +} + +static int otx2_xdp(struct net_device *netdev, struct netdev_bpf *xdp) +{ + struct otx2_nic *pf = netdev_priv(netdev); + + switch (xdp->command) { + case XDP_SETUP_PROG: + return otx2_xdp_setup(pf, xdp->prog); + default: + return -EINVAL; + } +} + +static int otx2_set_vf_permissions(struct otx2_nic *pf, int vf, + int req_perm) +{ + struct set_vf_perm *req; + int rc; + + mutex_lock(&pf->mbox.lock); + req = otx2_mbox_alloc_msg_set_vf_perm(&pf->mbox); + if (!req) { + rc = -ENOMEM; + goto out; + } + + /* Let AF reset VF permissions as sriov is disabled */ + if (req_perm == OTX2_RESET_VF_PERM) { + req->flags |= RESET_VF_PERM; + } else if (req_perm == OTX2_TRUSTED_VF) { + if (pf->vf_configs[vf].trusted) + req->flags |= VF_TRUSTED; + } + + req->vf = vf; + rc = otx2_sync_mbox_msg(&pf->mbox); +out: + mutex_unlock(&pf->mbox.lock); + return rc; +} + +static int otx2_ndo_set_vf_trust(struct net_device *netdev, int vf, + bool enable) +{ + struct otx2_nic *pf = netdev_priv(netdev); + struct pci_dev *pdev = pf->pdev; + int rc; + + if (vf >= pci_num_vf(pdev)) + return -EINVAL; + + if (pf->vf_configs[vf].trusted == enable) + return 0; + + pf->vf_configs[vf].trusted = enable; + rc = otx2_set_vf_permissions(pf, vf, OTX2_TRUSTED_VF); + + if (rc) { + pf->vf_configs[vf].trusted = !enable; + } else { + netdev_info(pf->netdev, "VF %d is %strusted\n", + vf, enable ? "" : "not "); + otx2_set_rx_mode(netdev); + } + + return rc; +} + +static const struct net_device_ops otx2_netdev_ops = { + .ndo_open = otx2_open, + .ndo_stop = otx2_stop, + .ndo_start_xmit = otx2_xmit, + .ndo_select_queue = otx2_select_queue, + .ndo_fix_features = otx2_fix_features, + .ndo_set_mac_address = otx2_set_mac_address, + .ndo_change_mtu = otx2_change_mtu, + .ndo_set_rx_mode = otx2_set_rx_mode, + .ndo_set_features = otx2_set_features, + .ndo_tx_timeout = otx2_tx_timeout, + .ndo_get_stats64 = otx2_get_stats64, + .ndo_eth_ioctl = otx2_ioctl, + .ndo_set_vf_mac = otx2_set_vf_mac, + .ndo_set_vf_vlan = otx2_set_vf_vlan, + .ndo_get_vf_config = otx2_get_vf_config, + .ndo_bpf = otx2_xdp, + .ndo_xdp_xmit = otx2_xdp_xmit, + .ndo_setup_tc = otx2_setup_tc, + .ndo_set_vf_trust = otx2_ndo_set_vf_trust, +}; + +static int otx2_wq_init(struct otx2_nic *pf) +{ + pf->otx2_wq = create_singlethread_workqueue("otx2_wq"); + if (!pf->otx2_wq) + return -ENOMEM; + + INIT_WORK(&pf->rx_mode_work, otx2_rx_mode_wrk_handler); + INIT_WORK(&pf->reset_task, otx2_reset_task); + return 0; +} + +static int otx2_check_pf_usable(struct otx2_nic *nic) +{ + u64 rev; + + rev = otx2_read64(nic, RVU_PF_BLOCK_ADDRX_DISC(BLKADDR_RVUM)); + rev = (rev >> 12) & 0xFF; + /* Check if AF has setup revision for RVUM block, + * otherwise this driver probe should be deferred + * until AF driver comes up. + */ + if (!rev) { + dev_warn(nic->dev, + "AF is not initialized, deferring probe\n"); + return -EPROBE_DEFER; + } + return 0; +} + +static int otx2_realloc_msix_vectors(struct otx2_nic *pf) +{ + struct otx2_hw *hw = &pf->hw; + int num_vec, err; + + /* NPA interrupts are inot registered, so alloc only + * upto NIX vector offset. + */ + num_vec = hw->nix_msixoff; + num_vec += NIX_LF_CINT_VEC_START + hw->max_queues; + + otx2_disable_mbox_intr(pf); + pci_free_irq_vectors(hw->pdev); + err = pci_alloc_irq_vectors(hw->pdev, num_vec, num_vec, PCI_IRQ_MSIX); + if (err < 0) { + dev_err(pf->dev, "%s: Failed to realloc %d IRQ vectors\n", + __func__, num_vec); + return err; + } + + return otx2_register_mbox_intr(pf, false); +} + +static int otx2_sriov_vfcfg_init(struct otx2_nic *pf) +{ + int i; + + pf->vf_configs = devm_kcalloc(pf->dev, pf->total_vfs, + sizeof(struct otx2_vf_config), + GFP_KERNEL); + if (!pf->vf_configs) + return -ENOMEM; + + for (i = 0; i < pf->total_vfs; i++) { + pf->vf_configs[i].pf = pf; + pf->vf_configs[i].intf_down = true; + pf->vf_configs[i].trusted = false; + INIT_DELAYED_WORK(&pf->vf_configs[i].link_event_work, + otx2_vf_link_event_task); + } + + return 0; +} + +static void otx2_sriov_vfcfg_cleanup(struct otx2_nic *pf) +{ + int i; + + if (!pf->vf_configs) + return; + + for (i = 0; i < pf->total_vfs; i++) { + cancel_delayed_work_sync(&pf->vf_configs[i].link_event_work); + otx2_set_vf_permissions(pf, i, OTX2_RESET_VF_PERM); + } +} + +static int otx2_probe(struct pci_dev *pdev, const struct pci_device_id *id) +{ + struct device *dev = &pdev->dev; + int err, qcount, qos_txqs; + struct net_device *netdev; + struct otx2_nic *pf; + struct otx2_hw *hw; + int num_vec; + + err = pcim_enable_device(pdev); + if (err) { + dev_err(dev, "Failed to enable PCI device\n"); + return err; + } + + err = pci_request_regions(pdev, DRV_NAME); + if (err) { + dev_err(dev, "PCI request regions failed 0x%x\n", err); + return err; + } + + err = dma_set_mask_and_coherent(dev, DMA_BIT_MASK(48)); + if (err) { + dev_err(dev, "DMA mask config failed, abort\n"); + goto err_release_regions; + } + + pci_set_master(pdev); + + /* Set number of queues */ + qcount = min_t(int, num_online_cpus(), OTX2_MAX_CQ_CNT); + qos_txqs = min_t(int, qcount, OTX2_QOS_MAX_LEAF_NODES); + + netdev = alloc_etherdev_mqs(sizeof(*pf), qcount + qos_txqs, qcount); + if (!netdev) { + err = -ENOMEM; + goto err_release_regions; + } + + pci_set_drvdata(pdev, netdev); + SET_NETDEV_DEV(netdev, &pdev->dev); + pf = netdev_priv(netdev); + pf->netdev = netdev; + pf->pdev = pdev; + pf->dev = dev; + pf->total_vfs = pci_sriov_get_totalvfs(pdev); + pf->flags |= OTX2_FLAG_INTF_DOWN; + + hw = &pf->hw; + hw->pdev = pdev; + hw->rx_queues = qcount; + hw->tx_queues = qcount; + hw->non_qos_queues = qcount; + hw->max_queues = qcount; + hw->rbuf_len = OTX2_DEFAULT_RBUF_LEN; + /* Use CQE of 128 byte descriptor size by default */ + hw->xqe_size = 128; + + num_vec = pci_msix_vec_count(pdev); + hw->irq_name = devm_kmalloc_array(&hw->pdev->dev, num_vec, NAME_SIZE, + GFP_KERNEL); + if (!hw->irq_name) { + err = -ENOMEM; + goto err_free_netdev; + } + + hw->affinity_mask = devm_kcalloc(&hw->pdev->dev, num_vec, + sizeof(cpumask_var_t), GFP_KERNEL); + if (!hw->affinity_mask) { + err = -ENOMEM; + goto err_free_netdev; + } + + /* Map CSRs */ + pf->reg_base = pcim_iomap(pdev, PCI_CFG_REG_BAR_NUM, 0); + if (!pf->reg_base) { + dev_err(dev, "Unable to map physical function CSRs, aborting\n"); + err = -ENOMEM; + goto err_free_netdev; + } + + err = otx2_check_pf_usable(pf); + if (err) + goto err_free_netdev; + + err = pci_alloc_irq_vectors(hw->pdev, RVU_PF_INT_VEC_CNT, + RVU_PF_INT_VEC_CNT, PCI_IRQ_MSIX); + if (err < 0) { + dev_err(dev, "%s: Failed to alloc %d IRQ vectors\n", + __func__, num_vec); + goto err_free_netdev; + } + + otx2_setup_dev_hw_settings(pf); + + /* Init PF <=> AF mailbox stuff */ + err = otx2_pfaf_mbox_init(pf); + if (err) + goto err_free_irq_vectors; + + /* Register mailbox interrupt */ + err = otx2_register_mbox_intr(pf, true); + if (err) + goto err_mbox_destroy; + + /* Request AF to attach NPA and NIX LFs to this PF. + * NIX and NPA LFs are needed for this PF to function as a NIC. + */ + err = otx2_attach_npa_nix(pf); + if (err) + goto err_disable_mbox_intr; + + err = otx2_realloc_msix_vectors(pf); + if (err) + goto err_detach_rsrc; + + err = otx2_set_real_num_queues(netdev, hw->tx_queues, hw->rx_queues); + if (err) + goto err_detach_rsrc; + + err = cn10k_lmtst_init(pf); + if (err) + goto err_detach_rsrc; + + /* Assign default mac address */ + otx2_get_mac_from_af(netdev); + + /* Don't check for error. Proceed without ptp */ + otx2_ptp_init(pf); + + /* NPA's pool is a stack to which SW frees buffer pointers via Aura. + * HW allocates buffer pointer from stack and uses it for DMA'ing + * ingress packet. In some scenarios HW can free back allocated buffer + * pointers to pool. This makes it impossible for SW to maintain a + * parallel list where physical addresses of buffer pointers (IOVAs) + * given to HW can be saved for later reference. + * + * So the only way to convert Rx packet's buffer address is to use + * IOMMU's iova_to_phys() handler which translates the address by + * walking through the translation tables. + */ + pf->iommu_domain = iommu_get_domain_for_dev(dev); + + netdev->hw_features = (NETIF_F_RXCSUM | NETIF_F_IP_CSUM | + NETIF_F_IPV6_CSUM | NETIF_F_RXHASH | + NETIF_F_SG | NETIF_F_TSO | NETIF_F_TSO6 | + NETIF_F_GSO_UDP_L4); + netdev->features |= netdev->hw_features; + + err = otx2_mcam_flow_init(pf); + if (err) + goto err_ptp_destroy; + + err = cn10k_mcs_init(pf); + if (err) + goto err_del_mcam_entries; + + if (pf->flags & OTX2_FLAG_NTUPLE_SUPPORT) + netdev->hw_features |= NETIF_F_NTUPLE; + + if (pf->flags & OTX2_FLAG_UCAST_FLTR_SUPPORT) + netdev->priv_flags |= IFF_UNICAST_FLT; + + /* Support TSO on tag interface */ + netdev->vlan_features |= netdev->features; + netdev->hw_features |= NETIF_F_HW_VLAN_CTAG_TX | + NETIF_F_HW_VLAN_STAG_TX; + if (pf->flags & OTX2_FLAG_RX_VLAN_SUPPORT) + netdev->hw_features |= NETIF_F_HW_VLAN_CTAG_RX | + NETIF_F_HW_VLAN_STAG_RX; + netdev->features |= netdev->hw_features; + + /* HW supports tc offload but mutually exclusive with n-tuple filters */ + if (pf->flags & OTX2_FLAG_TC_FLOWER_SUPPORT) + netdev->hw_features |= NETIF_F_HW_TC; + + netdev->hw_features |= NETIF_F_LOOPBACK | NETIF_F_RXALL; + + netif_set_tso_max_segs(netdev, OTX2_MAX_GSO_SEGS); + netdev->watchdog_timeo = OTX2_TX_TIMEOUT; + + netdev->netdev_ops = &otx2_netdev_ops; + + netdev->min_mtu = OTX2_MIN_MTU; + netdev->max_mtu = otx2_get_max_mtu(pf); + + err = register_netdev(netdev); + if (err) { + dev_err(dev, "Failed to register netdevice\n"); + goto err_mcs_free; + } + + err = otx2_wq_init(pf); + if (err) + goto err_unreg_netdev; + + otx2_set_ethtool_ops(netdev); + + err = otx2_init_tc(pf); + if (err) + goto err_mcam_flow_del; + + err = otx2_register_dl(pf); + if (err) + goto err_mcam_flow_del; + + /* Initialize SR-IOV resources */ + err = otx2_sriov_vfcfg_init(pf); + if (err) + goto err_pf_sriov_init; + + /* Enable link notifications */ + otx2_cgx_config_linkevents(pf, true); + +#ifdef CONFIG_DCB + err = otx2_dcbnl_set_ops(netdev); + if (err) + goto err_pf_sriov_init; +#endif + + otx2_qos_init(pf, qos_txqs); + + return 0; + +err_pf_sriov_init: + otx2_shutdown_tc(pf); +err_mcam_flow_del: + otx2_mcam_flow_del(pf); +err_unreg_netdev: + unregister_netdev(netdev); +err_mcs_free: + cn10k_mcs_free(pf); +err_del_mcam_entries: + otx2_mcam_flow_del(pf); +err_ptp_destroy: + otx2_ptp_destroy(pf); +err_detach_rsrc: + if (pf->hw.lmt_info) + free_percpu(pf->hw.lmt_info); + if (test_bit(CN10K_LMTST, &pf->hw.cap_flag)) + qmem_free(pf->dev, pf->dync_lmt); + otx2_detach_resources(&pf->mbox); +err_disable_mbox_intr: + otx2_disable_mbox_intr(pf); +err_mbox_destroy: + otx2_pfaf_mbox_destroy(pf); +err_free_irq_vectors: + pci_free_irq_vectors(hw->pdev); +err_free_netdev: + pci_set_drvdata(pdev, NULL); + free_netdev(netdev); +err_release_regions: + pci_release_regions(pdev); + return err; +} + +static void otx2_vf_link_event_task(struct work_struct *work) +{ + struct otx2_vf_config *config; + struct cgx_link_info_msg *req; + struct mbox_msghdr *msghdr; + struct otx2_nic *pf; + int vf_idx; + + config = container_of(work, struct otx2_vf_config, + link_event_work.work); + vf_idx = config - config->pf->vf_configs; + pf = config->pf; + + msghdr = otx2_mbox_alloc_msg_rsp(&pf->mbox_pfvf[0].mbox_up, vf_idx, + sizeof(*req), sizeof(struct msg_rsp)); + if (!msghdr) { + dev_err(pf->dev, "Failed to create VF%d link event\n", vf_idx); + return; + } + + req = (struct cgx_link_info_msg *)msghdr; + req->hdr.id = MBOX_MSG_CGX_LINK_EVENT; + req->hdr.sig = OTX2_MBOX_REQ_SIG; + memcpy(&req->link_info, &pf->linfo, sizeof(req->link_info)); + + otx2_sync_mbox_up_msg(&pf->mbox_pfvf[0], vf_idx); +} + +static int otx2_sriov_enable(struct pci_dev *pdev, int numvfs) +{ + struct net_device *netdev = pci_get_drvdata(pdev); + struct otx2_nic *pf = netdev_priv(netdev); + int ret; + + /* Init PF <=> VF mailbox stuff */ + ret = otx2_pfvf_mbox_init(pf, numvfs); + if (ret) + return ret; + + ret = otx2_register_pfvf_mbox_intr(pf, numvfs); + if (ret) + goto free_mbox; + + ret = otx2_pf_flr_init(pf, numvfs); + if (ret) + goto free_intr; + + ret = otx2_register_flr_me_intr(pf, numvfs); + if (ret) + goto free_flr; + + ret = pci_enable_sriov(pdev, numvfs); + if (ret) + goto free_flr_intr; + + return numvfs; +free_flr_intr: + otx2_disable_flr_me_intr(pf); +free_flr: + otx2_flr_wq_destroy(pf); +free_intr: + otx2_disable_pfvf_mbox_intr(pf, numvfs); +free_mbox: + otx2_pfvf_mbox_destroy(pf); + return ret; +} + +static int otx2_sriov_disable(struct pci_dev *pdev) +{ + struct net_device *netdev = pci_get_drvdata(pdev); + struct otx2_nic *pf = netdev_priv(netdev); + int numvfs = pci_num_vf(pdev); + + if (!numvfs) + return 0; + + pci_disable_sriov(pdev); + + otx2_disable_flr_me_intr(pf); + otx2_flr_wq_destroy(pf); + otx2_disable_pfvf_mbox_intr(pf, numvfs); + otx2_pfvf_mbox_destroy(pf); + + return 0; +} + +static int otx2_sriov_configure(struct pci_dev *pdev, int numvfs) +{ + if (numvfs == 0) + return otx2_sriov_disable(pdev); + else + return otx2_sriov_enable(pdev, numvfs); +} + +static void otx2_remove(struct pci_dev *pdev) +{ + struct net_device *netdev = pci_get_drvdata(pdev); + struct otx2_nic *pf; + + if (!netdev) + return; + + pf = netdev_priv(netdev); + + pf->flags |= OTX2_FLAG_PF_SHUTDOWN; + + if (pf->flags & OTX2_FLAG_TX_TSTAMP_ENABLED) + otx2_config_hw_tx_tstamp(pf, false); + if (pf->flags & OTX2_FLAG_RX_TSTAMP_ENABLED) + otx2_config_hw_rx_tstamp(pf, false); + + /* Disable 802.3x pause frames */ + if (pf->flags & OTX2_FLAG_RX_PAUSE_ENABLED || + (pf->flags & OTX2_FLAG_TX_PAUSE_ENABLED)) { + pf->flags &= ~OTX2_FLAG_RX_PAUSE_ENABLED; + pf->flags &= ~OTX2_FLAG_TX_PAUSE_ENABLED; + otx2_config_pause_frm(pf); + } + +#ifdef CONFIG_DCB + /* Disable PFC config */ + if (pf->pfc_en) { + pf->pfc_en = 0; + otx2_config_priority_flow_ctrl(pf); + } +#endif + cancel_work_sync(&pf->reset_task); + /* Disable link notifications */ + otx2_cgx_config_linkevents(pf, false); + + otx2_unregister_dl(pf); + unregister_netdev(netdev); + cn10k_mcs_free(pf); + otx2_sriov_disable(pf->pdev); + otx2_sriov_vfcfg_cleanup(pf); + if (pf->otx2_wq) + destroy_workqueue(pf->otx2_wq); + + otx2_ptp_destroy(pf); + otx2_mcam_flow_del(pf); + otx2_shutdown_tc(pf); + otx2_detach_resources(&pf->mbox); + if (pf->hw.lmt_info) + free_percpu(pf->hw.lmt_info); + if (test_bit(CN10K_LMTST, &pf->hw.cap_flag)) + qmem_free(pf->dev, pf->dync_lmt); + otx2_disable_mbox_intr(pf); + otx2_pfaf_mbox_destroy(pf); + pci_free_irq_vectors(pf->pdev); + pci_set_drvdata(pdev, NULL); + free_netdev(netdev); + + pci_release_regions(pdev); +} + +static struct pci_driver otx2_pf_driver = { + .name = DRV_NAME, + .id_table = otx2_pf_id_table, + .probe = otx2_probe, + .shutdown = otx2_remove, + .remove = otx2_remove, + .sriov_configure = otx2_sriov_configure +}; + +static int __init otx2_rvupf_init_module(void) +{ + pr_info("%s: %s\n", DRV_NAME, DRV_STRING); + + return pci_register_driver(&otx2_pf_driver); +} + +static void __exit otx2_rvupf_cleanup_module(void) +{ + pci_unregister_driver(&otx2_pf_driver); +} + +module_init(otx2_rvupf_init_module); +module_exit(otx2_rvupf_cleanup_module); diff --git a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_ptp.c b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_ptp.c new file mode 100644 index 000000000..896b2f9ba --- /dev/null +++ b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_ptp.c @@ -0,0 +1,398 @@ +// SPDX-License-Identifier: GPL-2.0 +/* Marvell RVU Ethernet driver + * + * Copyright (C) 2020 Marvell. + * + */ + +#include <linux/module.h> + +#include "otx2_common.h" +#include "otx2_ptp.h" + +static u64 otx2_ptp_get_clock(struct otx2_ptp *ptp) +{ + struct ptp_req *req; + struct ptp_rsp *rsp; + int err; + + if (!ptp->nic) + return 0; + + req = otx2_mbox_alloc_msg_ptp_op(&ptp->nic->mbox); + if (!req) + return 0; + + req->op = PTP_OP_GET_CLOCK; + + err = otx2_sync_mbox_msg(&ptp->nic->mbox); + if (err) + return 0; + + rsp = (struct ptp_rsp *)otx2_mbox_get_rsp(&ptp->nic->mbox.mbox, 0, + &req->hdr); + if (IS_ERR(rsp)) + return 0; + + return rsp->clk; +} + +static int otx2_ptp_adjfine(struct ptp_clock_info *ptp_info, long scaled_ppm) +{ + struct otx2_ptp *ptp = container_of(ptp_info, struct otx2_ptp, + ptp_info); + struct ptp_req *req; + + if (!ptp->nic) + return -ENODEV; + + req = otx2_mbox_alloc_msg_ptp_op(&ptp->nic->mbox); + if (!req) + return -ENOMEM; + + req->op = PTP_OP_ADJFINE; + req->scaled_ppm = scaled_ppm; + + return otx2_sync_mbox_msg(&ptp->nic->mbox); +} + +static int ptp_set_thresh(struct otx2_ptp *ptp, u64 thresh) +{ + struct ptp_req *req; + + if (!ptp->nic) + return -ENODEV; + + req = otx2_mbox_alloc_msg_ptp_op(&ptp->nic->mbox); + if (!req) + return -ENOMEM; + + req->op = PTP_OP_SET_THRESH; + req->thresh = thresh; + + return otx2_sync_mbox_msg(&ptp->nic->mbox); +} + +static int ptp_extts_on(struct otx2_ptp *ptp, int on) +{ + struct ptp_req *req; + + if (!ptp->nic) + return -ENODEV; + + req = otx2_mbox_alloc_msg_ptp_op(&ptp->nic->mbox); + if (!req) + return -ENOMEM; + + req->op = PTP_OP_EXTTS_ON; + req->extts_on = on; + + return otx2_sync_mbox_msg(&ptp->nic->mbox); +} + +static u64 ptp_cc_read(const struct cyclecounter *cc) +{ + struct otx2_ptp *ptp = container_of(cc, struct otx2_ptp, cycle_counter); + + return otx2_ptp_get_clock(ptp); +} + +static u64 ptp_tstmp_read(struct otx2_ptp *ptp) +{ + struct ptp_req *req; + struct ptp_rsp *rsp; + int err; + + if (!ptp->nic) + return 0; + + req = otx2_mbox_alloc_msg_ptp_op(&ptp->nic->mbox); + if (!req) + return 0; + + req->op = PTP_OP_GET_TSTMP; + + err = otx2_sync_mbox_msg(&ptp->nic->mbox); + if (err) + return 0; + + rsp = (struct ptp_rsp *)otx2_mbox_get_rsp(&ptp->nic->mbox.mbox, 0, + &req->hdr); + if (IS_ERR(rsp)) + return 0; + + return rsp->clk; +} + +static void otx2_get_ptpclock(struct otx2_ptp *ptp, u64 *tstamp) +{ + struct otx2_nic *pfvf = ptp->nic; + + mutex_lock(&pfvf->mbox.lock); + *tstamp = timecounter_read(&ptp->time_counter); + mutex_unlock(&pfvf->mbox.lock); +} + +static int otx2_ptp_adjtime(struct ptp_clock_info *ptp_info, s64 delta) +{ + struct otx2_ptp *ptp = container_of(ptp_info, struct otx2_ptp, + ptp_info); + struct otx2_nic *pfvf = ptp->nic; + + mutex_lock(&pfvf->mbox.lock); + timecounter_adjtime(&ptp->time_counter, delta); + mutex_unlock(&pfvf->mbox.lock); + + return 0; +} + +static int otx2_ptp_gettime(struct ptp_clock_info *ptp_info, + struct timespec64 *ts) +{ + struct otx2_ptp *ptp = container_of(ptp_info, struct otx2_ptp, + ptp_info); + u64 tstamp; + + otx2_get_ptpclock(ptp, &tstamp); + *ts = ns_to_timespec64(tstamp); + + return 0; +} + +static int otx2_ptp_settime(struct ptp_clock_info *ptp_info, + const struct timespec64 *ts) +{ + struct otx2_ptp *ptp = container_of(ptp_info, struct otx2_ptp, + ptp_info); + struct otx2_nic *pfvf = ptp->nic; + u64 nsec; + + nsec = timespec64_to_ns(ts); + + mutex_lock(&pfvf->mbox.lock); + timecounter_init(&ptp->time_counter, &ptp->cycle_counter, nsec); + mutex_unlock(&pfvf->mbox.lock); + + return 0; +} + +static int otx2_ptp_verify_pin(struct ptp_clock_info *ptp, unsigned int pin, + enum ptp_pin_function func, unsigned int chan) +{ + switch (func) { + case PTP_PF_NONE: + case PTP_PF_EXTTS: + break; + case PTP_PF_PEROUT: + case PTP_PF_PHYSYNC: + return -1; + } + return 0; +} + +static void otx2_ptp_extts_check(struct work_struct *work) +{ + struct otx2_ptp *ptp = container_of(work, struct otx2_ptp, + extts_work.work); + struct ptp_clock_event event; + u64 tstmp, new_thresh; + + mutex_lock(&ptp->nic->mbox.lock); + tstmp = ptp_tstmp_read(ptp); + mutex_unlock(&ptp->nic->mbox.lock); + + if (tstmp != ptp->last_extts) { + event.type = PTP_CLOCK_EXTTS; + event.index = 0; + event.timestamp = timecounter_cyc2time(&ptp->time_counter, tstmp); + ptp_clock_event(ptp->ptp_clock, &event); + new_thresh = tstmp % 500000000; + if (ptp->thresh != new_thresh) { + mutex_lock(&ptp->nic->mbox.lock); + ptp_set_thresh(ptp, new_thresh); + mutex_unlock(&ptp->nic->mbox.lock); + ptp->thresh = new_thresh; + } + ptp->last_extts = tstmp; + } + schedule_delayed_work(&ptp->extts_work, msecs_to_jiffies(200)); +} + +static void otx2_sync_tstamp(struct work_struct *work) +{ + struct otx2_ptp *ptp = container_of(work, struct otx2_ptp, + synctstamp_work.work); + struct otx2_nic *pfvf = ptp->nic; + u64 tstamp; + + mutex_lock(&pfvf->mbox.lock); + tstamp = otx2_ptp_get_clock(ptp); + mutex_unlock(&pfvf->mbox.lock); + + ptp->tstamp = timecounter_cyc2time(&pfvf->ptp->time_counter, tstamp); + ptp->base_ns = tstamp % NSEC_PER_SEC; + + schedule_delayed_work(&ptp->synctstamp_work, msecs_to_jiffies(250)); +} + +static int otx2_ptp_enable(struct ptp_clock_info *ptp_info, + struct ptp_clock_request *rq, int on) +{ + struct otx2_ptp *ptp = container_of(ptp_info, struct otx2_ptp, + ptp_info); + int pin; + + if (!ptp->nic) + return -ENODEV; + + switch (rq->type) { + case PTP_CLK_REQ_EXTTS: + pin = ptp_find_pin(ptp->ptp_clock, PTP_PF_EXTTS, + rq->extts.index); + if (pin < 0) + return -EBUSY; + if (on) { + ptp_extts_on(ptp, on); + schedule_delayed_work(&ptp->extts_work, msecs_to_jiffies(200)); + } else { + ptp_extts_on(ptp, on); + cancel_delayed_work_sync(&ptp->extts_work); + } + return 0; + default: + break; + } + return -EOPNOTSUPP; +} + +int otx2_ptp_init(struct otx2_nic *pfvf) +{ + struct otx2_ptp *ptp_ptr; + struct cyclecounter *cc; + struct ptp_req *req; + int err; + + if (is_otx2_lbkvf(pfvf->pdev)) { + pfvf->ptp = NULL; + return 0; + } + + mutex_lock(&pfvf->mbox.lock); + /* check if PTP block is available */ + req = otx2_mbox_alloc_msg_ptp_op(&pfvf->mbox); + if (!req) { + mutex_unlock(&pfvf->mbox.lock); + return -ENOMEM; + } + + req->op = PTP_OP_GET_CLOCK; + + err = otx2_sync_mbox_msg(&pfvf->mbox); + if (err) { + mutex_unlock(&pfvf->mbox.lock); + return err; + } + mutex_unlock(&pfvf->mbox.lock); + + ptp_ptr = kzalloc(sizeof(*ptp_ptr), GFP_KERNEL); + if (!ptp_ptr) { + err = -ENOMEM; + goto error; + } + + ptp_ptr->nic = pfvf; + + cc = &ptp_ptr->cycle_counter; + cc->read = ptp_cc_read; + cc->mask = CYCLECOUNTER_MASK(64); + cc->mult = 1; + cc->shift = 0; + + timecounter_init(&ptp_ptr->time_counter, &ptp_ptr->cycle_counter, + ktime_to_ns(ktime_get_real())); + + snprintf(ptp_ptr->extts_config.name, sizeof(ptp_ptr->extts_config.name), "TSTAMP"); + ptp_ptr->extts_config.index = 0; + ptp_ptr->extts_config.func = PTP_PF_NONE; + + ptp_ptr->ptp_info = (struct ptp_clock_info) { + .owner = THIS_MODULE, + .name = "OcteonTX2 PTP", + .max_adj = 1000000000ull, + .n_ext_ts = 1, + .n_pins = 1, + .pps = 0, + .pin_config = &ptp_ptr->extts_config, + .adjfine = otx2_ptp_adjfine, + .adjtime = otx2_ptp_adjtime, + .gettime64 = otx2_ptp_gettime, + .settime64 = otx2_ptp_settime, + .enable = otx2_ptp_enable, + .verify = otx2_ptp_verify_pin, + }; + + INIT_DELAYED_WORK(&ptp_ptr->extts_work, otx2_ptp_extts_check); + + ptp_ptr->ptp_clock = ptp_clock_register(&ptp_ptr->ptp_info, pfvf->dev); + if (IS_ERR_OR_NULL(ptp_ptr->ptp_clock)) { + err = ptp_ptr->ptp_clock ? + PTR_ERR(ptp_ptr->ptp_clock) : -ENODEV; + kfree(ptp_ptr); + goto error; + } + + if (is_dev_otx2(pfvf->pdev)) { + ptp_ptr->convert_rx_ptp_tstmp = &otx2_ptp_convert_rx_timestamp; + ptp_ptr->convert_tx_ptp_tstmp = &otx2_ptp_convert_tx_timestamp; + } else { + ptp_ptr->convert_rx_ptp_tstmp = &cn10k_ptp_convert_timestamp; + ptp_ptr->convert_tx_ptp_tstmp = &cn10k_ptp_convert_timestamp; + } + + INIT_DELAYED_WORK(&ptp_ptr->synctstamp_work, otx2_sync_tstamp); + + pfvf->ptp = ptp_ptr; + +error: + return err; +} +EXPORT_SYMBOL_GPL(otx2_ptp_init); + +void otx2_ptp_destroy(struct otx2_nic *pfvf) +{ + struct otx2_ptp *ptp = pfvf->ptp; + + if (!ptp) + return; + + cancel_delayed_work(&pfvf->ptp->synctstamp_work); + + ptp_clock_unregister(ptp->ptp_clock); + kfree(ptp); + pfvf->ptp = NULL; +} +EXPORT_SYMBOL_GPL(otx2_ptp_destroy); + +int otx2_ptp_clock_index(struct otx2_nic *pfvf) +{ + if (!pfvf->ptp) + return -ENODEV; + + return ptp_clock_index(pfvf->ptp->ptp_clock); +} +EXPORT_SYMBOL_GPL(otx2_ptp_clock_index); + +int otx2_ptp_tstamp2time(struct otx2_nic *pfvf, u64 tstamp, u64 *tsns) +{ + if (!pfvf->ptp) + return -ENODEV; + + *tsns = timecounter_cyc2time(&pfvf->ptp->time_counter, tstamp); + + return 0; +} +EXPORT_SYMBOL_GPL(otx2_ptp_tstamp2time); + +MODULE_AUTHOR("Sunil Goutham <sgoutham@marvell.com>"); +MODULE_DESCRIPTION("Marvell RVU NIC PTP Driver"); +MODULE_LICENSE("GPL v2"); diff --git a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_ptp.h b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_ptp.h new file mode 100644 index 000000000..7ff41927c --- /dev/null +++ b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_ptp.h @@ -0,0 +1,32 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* Marvell RVU Ethernet driver + * + * Copyright (C) 2020 Marvell. + * + */ + +#ifndef OTX2_PTP_H +#define OTX2_PTP_H + +static inline u64 otx2_ptp_convert_rx_timestamp(u64 timestamp) +{ + return be64_to_cpu(*(__be64 *)×tamp); +} + +static inline u64 otx2_ptp_convert_tx_timestamp(u64 timestamp) +{ + return timestamp; +} + +static inline u64 cn10k_ptp_convert_timestamp(u64 timestamp) +{ + return ((timestamp >> 32) * NSEC_PER_SEC) + (timestamp & 0xFFFFFFFFUL); +} + +int otx2_ptp_init(struct otx2_nic *pfvf); +void otx2_ptp_destroy(struct otx2_nic *pfvf); + +int otx2_ptp_clock_index(struct otx2_nic *pfvf); +int otx2_ptp_tstamp2time(struct otx2_nic *pfvf, u64 tstamp, u64 *tsns); + +#endif diff --git a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_reg.h b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_reg.h new file mode 100644 index 000000000..1b967eaf9 --- /dev/null +++ b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_reg.h @@ -0,0 +1,162 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* Marvell RVU Ethernet driver + * + * Copyright (C) 2020 Marvell. + * + */ + +#ifndef OTX2_REG_H +#define OTX2_REG_H + +#include <rvu_struct.h> + +/* RVU PF registers */ +#define RVU_PF_VFX_PFVF_MBOX0 (0x00000) +#define RVU_PF_VFX_PFVF_MBOX1 (0x00008) +#define RVU_PF_VFX_PFVF_MBOXX(a, b) (0x0 | (a) << 12 | (b) << 3) +#define RVU_PF_VF_BAR4_ADDR (0x10) +#define RVU_PF_BLOCK_ADDRX_DISC(a) (0x200 | (a) << 3) +#define RVU_PF_VFME_STATUSX(a) (0x800 | (a) << 3) +#define RVU_PF_VFTRPENDX(a) (0x820 | (a) << 3) +#define RVU_PF_VFTRPEND_W1SX(a) (0x840 | (a) << 3) +#define RVU_PF_VFPF_MBOX_INTX(a) (0x880 | (a) << 3) +#define RVU_PF_VFPF_MBOX_INT_W1SX(a) (0x8A0 | (a) << 3) +#define RVU_PF_VFPF_MBOX_INT_ENA_W1SX(a) (0x8C0 | (a) << 3) +#define RVU_PF_VFPF_MBOX_INT_ENA_W1CX(a) (0x8E0 | (a) << 3) +#define RVU_PF_VFFLR_INTX(a) (0x900 | (a) << 3) +#define RVU_PF_VFFLR_INT_W1SX(a) (0x920 | (a) << 3) +#define RVU_PF_VFFLR_INT_ENA_W1SX(a) (0x940 | (a) << 3) +#define RVU_PF_VFFLR_INT_ENA_W1CX(a) (0x960 | (a) << 3) +#define RVU_PF_VFME_INTX(a) (0x980 | (a) << 3) +#define RVU_PF_VFME_INT_W1SX(a) (0x9A0 | (a) << 3) +#define RVU_PF_VFME_INT_ENA_W1SX(a) (0x9C0 | (a) << 3) +#define RVU_PF_VFME_INT_ENA_W1CX(a) (0x9E0 | (a) << 3) +#define RVU_PF_PFAF_MBOX0 (0xC00) +#define RVU_PF_PFAF_MBOX1 (0xC08) +#define RVU_PF_PFAF_MBOXX(a) (0xC00 | (a) << 3) +#define RVU_PF_INT (0xc20) +#define RVU_PF_INT_W1S (0xc28) +#define RVU_PF_INT_ENA_W1S (0xc30) +#define RVU_PF_INT_ENA_W1C (0xc38) +#define RVU_PF_MSIX_VECX_ADDR(a) (0x000 | (a) << 4) +#define RVU_PF_MSIX_VECX_CTL(a) (0x008 | (a) << 4) +#define RVU_PF_MSIX_PBAX(a) (0xF0000 | (a) << 3) +#define RVU_PF_VF_MBOX_ADDR (0xC40) +#define RVU_PF_LMTLINE_ADDR (0xC48) + +/* RVU VF registers */ +#define RVU_VF_VFPF_MBOX0 (0x00000) +#define RVU_VF_VFPF_MBOX1 (0x00008) +#define RVU_VF_VFPF_MBOXX(a) (0x00 | (a) << 3) +#define RVU_VF_INT (0x20) +#define RVU_VF_INT_W1S (0x28) +#define RVU_VF_INT_ENA_W1S (0x30) +#define RVU_VF_INT_ENA_W1C (0x38) +#define RVU_VF_BLOCK_ADDRX_DISC(a) (0x200 | (a) << 3) +#define RVU_VF_MSIX_VECX_ADDR(a) (0x000 | (a) << 4) +#define RVU_VF_MSIX_VECX_CTL(a) (0x008 | (a) << 4) +#define RVU_VF_MSIX_PBAX(a) (0xF0000 | (a) << 3) +#define RVU_VF_MBOX_REGION (0xC0000) + +#define RVU_FUNC_BLKADDR_SHIFT 20 +#define RVU_FUNC_BLKADDR_MASK 0x1FULL + +/* NPA LF registers */ +#define NPA_LFBASE (BLKTYPE_NPA << RVU_FUNC_BLKADDR_SHIFT) +#define NPA_LF_AURA_OP_ALLOCX(a) (NPA_LFBASE | 0x10 | (a) << 3) +#define NPA_LF_AURA_OP_FREE0 (NPA_LFBASE | 0x20) +#define NPA_LF_AURA_OP_FREE1 (NPA_LFBASE | 0x28) +#define NPA_LF_AURA_OP_CNT (NPA_LFBASE | 0x30) +#define NPA_LF_AURA_OP_LIMIT (NPA_LFBASE | 0x50) +#define NPA_LF_AURA_OP_INT (NPA_LFBASE | 0x60) +#define NPA_LF_AURA_OP_THRESH (NPA_LFBASE | 0x70) +#define NPA_LF_POOL_OP_PC (NPA_LFBASE | 0x100) +#define NPA_LF_POOL_OP_AVAILABLE (NPA_LFBASE | 0x110) +#define NPA_LF_POOL_OP_PTR_START0 (NPA_LFBASE | 0x120) +#define NPA_LF_POOL_OP_PTR_START1 (NPA_LFBASE | 0x128) +#define NPA_LF_POOL_OP_PTR_END0 (NPA_LFBASE | 0x130) +#define NPA_LF_POOL_OP_PTR_END1 (NPA_LFBASE | 0x138) +#define NPA_LF_POOL_OP_INT (NPA_LFBASE | 0x160) +#define NPA_LF_POOL_OP_THRESH (NPA_LFBASE | 0x170) +#define NPA_LF_ERR_INT (NPA_LFBASE | 0x200) +#define NPA_LF_ERR_INT_W1S (NPA_LFBASE | 0x208) +#define NPA_LF_ERR_INT_ENA_W1C (NPA_LFBASE | 0x210) +#define NPA_LF_ERR_INT_ENA_W1S (NPA_LFBASE | 0x218) +#define NPA_LF_RAS (NPA_LFBASE | 0x220) +#define NPA_LF_RAS_W1S (NPA_LFBASE | 0x228) +#define NPA_LF_RAS_ENA_W1C (NPA_LFBASE | 0x230) +#define NPA_LF_RAS_ENA_W1S (NPA_LFBASE | 0x238) +#define NPA_LF_QINTX_CNT(a) (NPA_LFBASE | 0x300 | (a) << 12) +#define NPA_LF_QINTX_INT(a) (NPA_LFBASE | 0x310 | (a) << 12) +#define NPA_LF_QINTX_INT_W1S(a) (NPA_LFBASE | 0x318 | (a) << 12) +#define NPA_LF_QINTX_ENA_W1S(a) (NPA_LFBASE | 0x320 | (a) << 12) +#define NPA_LF_QINTX_ENA_W1C(a) (NPA_LFBASE | 0x330 | (a) << 12) +#define NPA_LF_AURA_BATCH_FREE0 (NPA_LFBASE | 0x400) + +/* NIX LF registers */ +#define NIX_LFBASE (BLKTYPE_NIX << RVU_FUNC_BLKADDR_SHIFT) +#define NIX_LF_RX_SECRETX(a) (NIX_LFBASE | 0x0 | (a) << 3) +#define NIX_LF_CFG (NIX_LFBASE | 0x100) +#define NIX_LF_GINT (NIX_LFBASE | 0x200) +#define NIX_LF_GINT_W1S (NIX_LFBASE | 0x208) +#define NIX_LF_GINT_ENA_W1C (NIX_LFBASE | 0x210) +#define NIX_LF_GINT_ENA_W1S (NIX_LFBASE | 0x218) +#define NIX_LF_ERR_INT (NIX_LFBASE | 0x220) +#define NIX_LF_ERR_INT_W1S (NIX_LFBASE | 0x228) +#define NIX_LF_ERR_INT_ENA_W1C (NIX_LFBASE | 0x230) +#define NIX_LF_ERR_INT_ENA_W1S (NIX_LFBASE | 0x238) +#define NIX_LF_RAS (NIX_LFBASE | 0x240) +#define NIX_LF_RAS_W1S (NIX_LFBASE | 0x248) +#define NIX_LF_RAS_ENA_W1C (NIX_LFBASE | 0x250) +#define NIX_LF_RAS_ENA_W1S (NIX_LFBASE | 0x258) +#define NIX_LF_SQ_OP_ERR_DBG (NIX_LFBASE | 0x260) +#define NIX_LF_MNQ_ERR_DBG (NIX_LFBASE | 0x270) +#define NIX_LF_SEND_ERR_DBG (NIX_LFBASE | 0x280) +#define NIX_LF_TX_STATX(a) (NIX_LFBASE | 0x300 | (a) << 3) +#define NIX_LF_RX_STATX(a) (NIX_LFBASE | 0x400 | (a) << 3) +#define NIX_LF_OP_SENDX(a) (NIX_LFBASE | 0x800 | (a) << 3) +#define NIX_LF_RQ_OP_INT (NIX_LFBASE | 0x900) +#define NIX_LF_RQ_OP_OCTS (NIX_LFBASE | 0x910) +#define NIX_LF_RQ_OP_PKTS (NIX_LFBASE | 0x920) +#define NIX_LF_OP_IPSEC_DYNO_CN (NIX_LFBASE | 0x980) +#define NIX_LF_SQ_OP_INT (NIX_LFBASE | 0xa00) +#define NIX_LF_SQ_OP_OCTS (NIX_LFBASE | 0xa10) +#define NIX_LF_SQ_OP_PKTS (NIX_LFBASE | 0xa20) +#define NIX_LF_SQ_OP_STATUS (NIX_LFBASE | 0xa30) +#define NIX_LF_CQ_OP_INT (NIX_LFBASE | 0xb00) +#define NIX_LF_CQ_OP_DOOR (NIX_LFBASE | 0xb30) +#define NIX_LF_CQ_OP_STATUS (NIX_LFBASE | 0xb40) +#define NIX_LF_QINTX_CNT(a) (NIX_LFBASE | 0xC00 | (a) << 12) +#define NIX_LF_QINTX_INT(a) (NIX_LFBASE | 0xC10 | (a) << 12) +#define NIX_LF_QINTX_INT_W1S(a) (NIX_LFBASE | 0xC18 | (a) << 12) +#define NIX_LF_QINTX_ENA_W1S(a) (NIX_LFBASE | 0xC20 | (a) << 12) +#define NIX_LF_QINTX_ENA_W1C(a) (NIX_LFBASE | 0xC30 | (a) << 12) +#define NIX_LF_CINTX_CNT(a) (NIX_LFBASE | 0xD00 | (a) << 12) +#define NIX_LF_CINTX_WAIT(a) (NIX_LFBASE | 0xD10 | (a) << 12) +#define NIX_LF_CINTX_INT(a) (NIX_LFBASE | 0xD20 | (a) << 12) +#define NIX_LF_CINTX_INT_W1S(a) (NIX_LFBASE | 0xD30 | (a) << 12) +#define NIX_LF_CINTX_ENA_W1S(a) (NIX_LFBASE | 0xD40 | (a) << 12) +#define NIX_LF_CINTX_ENA_W1C(a) (NIX_LFBASE | 0xD50 | (a) << 12) + +/* NIX AF transmit scheduler registers */ +#define NIX_AF_SMQX_CFG(a) (0x700 | (a) << 16) +#define NIX_AF_TL1X_SCHEDULE(a) (0xC00 | (a) << 16) +#define NIX_AF_TL1X_CIR(a) (0xC20 | (a) << 16) +#define NIX_AF_TL1X_TOPOLOGY(a) (0xC80 | (a) << 16) +#define NIX_AF_TL2X_PARENT(a) (0xE88 | (a) << 16) +#define NIX_AF_TL2X_SCHEDULE(a) (0xE00 | (a) << 16) +#define NIX_AF_TL3X_PARENT(a) (0x1088 | (a) << 16) +#define NIX_AF_TL3X_SCHEDULE(a) (0x1000 | (a) << 16) +#define NIX_AF_TL4X_PARENT(a) (0x1288 | (a) << 16) +#define NIX_AF_TL4X_SCHEDULE(a) (0x1200 | (a) << 16) +#define NIX_AF_TL4X_PIR(a) (0x1230 | (a) << 16) +#define NIX_AF_MDQX_SCHEDULE(a) (0x1400 | (a) << 16) +#define NIX_AF_MDQX_PARENT(a) (0x1480 | (a) << 16) +#define NIX_AF_TL3_TL2X_LINKX_CFG(a, b) (0x1700 | (a) << 16 | (b) << 3) + +/* LMT LF registers */ +#define LMT_LFBASE BIT_ULL(RVU_FUNC_BLKADDR_SHIFT) +#define LMT_LF_LMTLINEX(a) (LMT_LFBASE | 0x000 | (a) << 12) +#define LMT_LF_LMTCANCEL (LMT_LFBASE | 0x400) + +#endif /* OTX2_REG_H */ diff --git a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_struct.h b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_struct.h new file mode 100644 index 000000000..4e5899d8f --- /dev/null +++ b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_struct.h @@ -0,0 +1,341 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* Marvell RVU Ethernet driver + * + * Copyright (C) 2020 Marvell. + * + */ + +#ifndef OTX2_STRUCT_H +#define OTX2_STRUCT_H + +/* NIX WQE/CQE size 128 byte or 512 byte */ +enum nix_cqesz_e { + NIX_XQESZ_W64 = 0x0, + NIX_XQESZ_W16 = 0x1, +}; + +enum nix_sqes_e { + NIX_SQESZ_W16 = 0x0, + NIX_SQESZ_W8 = 0x1, +}; + +enum nix_send_ldtype { + NIX_SEND_LDTYPE_LDD = 0x0, + NIX_SEND_LDTYPE_LDT = 0x1, + NIX_SEND_LDTYPE_LDWB = 0x2, +}; + +/* CSUM offload */ +enum nix_sendl3type { + NIX_SENDL3TYPE_NONE = 0x0, + NIX_SENDL3TYPE_IP4 = 0x2, + NIX_SENDL3TYPE_IP4_CKSUM = 0x3, + NIX_SENDL3TYPE_IP6 = 0x4, +}; + +enum nix_sendl4type { + NIX_SENDL4TYPE_NONE, + NIX_SENDL4TYPE_TCP_CKSUM, + NIX_SENDL4TYPE_SCTP_CKSUM, + NIX_SENDL4TYPE_UDP_CKSUM, +}; + +/* NIX wqe/cqe types */ +enum nix_xqe_type { + NIX_XQE_TYPE_INVALID = 0x0, + NIX_XQE_TYPE_RX = 0x1, + NIX_XQE_TYPE_RX_IPSECS = 0x2, + NIX_XQE_TYPE_RX_IPSECH = 0x3, + NIX_XQE_TYPE_RX_IPSECD = 0x4, + NIX_XQE_TYPE_SEND = 0x8, +}; + +/* NIX CQE/SQE subdescriptor types */ +enum nix_subdc { + NIX_SUBDC_NOP = 0x0, + NIX_SUBDC_EXT = 0x1, + NIX_SUBDC_CRC = 0x2, + NIX_SUBDC_IMM = 0x3, + NIX_SUBDC_SG = 0x4, + NIX_SUBDC_MEM = 0x5, + NIX_SUBDC_JUMP = 0x6, + NIX_SUBDC_WORK = 0x7, + NIX_SUBDC_SOD = 0xf, +}; + +/* Algorithm for nix_sqe_mem_s header (value of the `alg` field) */ +enum nix_sendmemalg { + NIX_SENDMEMALG_E_SET = 0x0, + NIX_SENDMEMALG_E_SETTSTMP = 0x1, + NIX_SENDMEMALG_E_SETRSLT = 0x2, + NIX_SENDMEMALG_E_ADD = 0x8, + NIX_SENDMEMALG_E_SUB = 0x9, + NIX_SENDMEMALG_E_ADDLEN = 0xa, + NIX_SENDMEMALG_E_SUBLEN = 0xb, + NIX_SENDMEMALG_E_ADDMBUF = 0xc, + NIX_SENDMEMALG_E_SUBMBUF = 0xd, + NIX_SENDMEMALG_E_ENUM_LAST = 0xe, +}; + +/* NIX CQE header structure */ +struct nix_cqe_hdr_s { + u64 flow_tag : 32; + u64 q : 20; + u64 reserved_52_57 : 6; + u64 node : 2; + u64 cqe_type : 4; +}; + +/* NIX CQE RX parse structure */ +struct nix_rx_parse_s { + u64 chan : 12; + u64 desc_sizem1 : 5; + u64 rsvd_17 : 1; + u64 express : 1; + u64 wqwd : 1; + u64 errlev : 4; + u64 errcode : 8; + u64 latype : 4; + u64 lbtype : 4; + u64 lctype : 4; + u64 ldtype : 4; + u64 letype : 4; + u64 lftype : 4; + u64 lgtype : 4; + u64 lhtype : 4; + u64 pkt_lenm1 : 16; /* W1 */ + u64 l2m : 1; + u64 l2b : 1; + u64 l3m : 1; + u64 l3b : 1; + u64 vtag0_valid : 1; + u64 vtag0_gone : 1; + u64 vtag1_valid : 1; + u64 vtag1_gone : 1; + u64 pkind : 6; + u64 rsvd_95_94 : 2; + u64 vtag0_tci : 16; + u64 vtag1_tci : 16; + u64 laflags : 8; /* W2 */ + u64 lbflags : 8; + u64 lcflags : 8; + u64 ldflags : 8; + u64 leflags : 8; + u64 lfflags : 8; + u64 lgflags : 8; + u64 lhflags : 8; + u64 eoh_ptr : 8; /* W3 */ + u64 wqe_aura : 20; + u64 pb_aura : 20; + u64 match_id : 16; + u64 laptr : 8; /* W4 */ + u64 lbptr : 8; + u64 lcptr : 8; + u64 ldptr : 8; + u64 leptr : 8; + u64 lfptr : 8; + u64 lgptr : 8; + u64 lhptr : 8; + u64 vtag0_ptr : 8; /* W5 */ + u64 vtag1_ptr : 8; + u64 flow_key_alg : 5; + u64 rsvd_359_341 : 19; + u64 color : 2; + u64 rsvd_383_362 : 22; + u64 rsvd_447_384; /* W6 */ +}; + +/* NIX CQE RX scatter/gather subdescriptor structure */ +struct nix_rx_sg_s { + u64 seg_size : 16; /* W0 */ + u64 seg2_size : 16; + u64 seg3_size : 16; + u64 segs : 2; + u64 rsvd_59_50 : 10; + u64 subdc : 4; + u64 seg_addr; + u64 seg2_addr; + u64 seg3_addr; +}; + +struct nix_send_comp_s { + u64 status : 8; + u64 sqe_id : 16; + u64 rsvd_24_63 : 40; +}; + +struct nix_cqe_rx_s { + struct nix_cqe_hdr_s hdr; + struct nix_rx_parse_s parse; + struct nix_rx_sg_s sg; +}; + +struct nix_cqe_tx_s { + struct nix_cqe_hdr_s hdr; + struct nix_send_comp_s comp; +}; + +/* NIX SQE header structure */ +struct nix_sqe_hdr_s { + u64 total : 18; /* W0 */ + u64 reserved_18 : 1; + u64 df : 1; + u64 aura : 20; + u64 sizem1 : 3; + u64 pnc : 1; + u64 sq : 20; + u64 ol3ptr : 8; /* W1 */ + u64 ol4ptr : 8; + u64 il3ptr : 8; + u64 il4ptr : 8; + u64 ol3type : 4; + u64 ol4type : 4; + u64 il3type : 4; + u64 il4type : 4; + u64 sqe_id : 16; + +}; + +/* NIX send extended header subdescriptor structure */ +struct nix_sqe_ext_s { + u64 lso_mps : 14; /* W0 */ + u64 lso : 1; + u64 tstmp : 1; + u64 lso_sb : 8; + u64 lso_format : 5; + u64 rsvd_31_29 : 3; + u64 shp_chg : 9; + u64 shp_dis : 1; + u64 shp_ra : 2; + u64 markptr : 8; + u64 markform : 7; + u64 mark_en : 1; + u64 subdc : 4; + u64 vlan0_ins_ptr : 8; /* W1 */ + u64 vlan0_ins_tci : 16; + u64 vlan1_ins_ptr : 8; + u64 vlan1_ins_tci : 16; + u64 vlan0_ins_ena : 1; + u64 vlan1_ins_ena : 1; + u64 init_color : 2; + u64 rsvd_127_116 : 12; +}; + +struct nix_sqe_sg_s { + u64 seg1_size : 16; + u64 seg2_size : 16; + u64 seg3_size : 16; + u64 segs : 2; + u64 rsvd_54_50 : 5; + u64 i1 : 1; + u64 i2 : 1; + u64 i3 : 1; + u64 ld_type : 2; + u64 subdc : 4; +}; + +/* NIX send memory subdescriptor structure */ +struct nix_sqe_mem_s { + u64 start_offset : 8; + u64 rsvd_11_8 : 4; + u64 rsvd_12 : 1; + u64 udp_csum_crt : 1; + u64 update64 : 1; + u64 rsvd_15_16 : 1; + u64 base_ns : 32; + u64 step_type : 1; + u64 rsvd_51_49 : 3; + u64 per_lso_seg : 1; + u64 wmem : 1; + u64 dsz : 2; + u64 alg : 4; + u64 subdc : 4; + u64 addr; /* W1 */ +}; + +enum nix_cqerrint_e { + NIX_CQERRINT_DOOR_ERR = 0, + NIX_CQERRINT_WR_FULL = 1, + NIX_CQERRINT_CQE_FAULT = 2, +}; + +#define NIX_CQERRINT_BITS (BIT_ULL(NIX_CQERRINT_DOOR_ERR) | \ + BIT_ULL(NIX_CQERRINT_CQE_FAULT)) + +enum nix_rqint_e { + NIX_RQINT_DROP = 0, + NIX_RQINT_RED = 1, +}; + +#define NIX_RQINT_BITS (BIT_ULL(NIX_RQINT_DROP) | BIT_ULL(NIX_RQINT_RED)) + +enum nix_sqint_e { + NIX_SQINT_LMT_ERR = 0, + NIX_SQINT_MNQ_ERR = 1, + NIX_SQINT_SEND_ERR = 2, + NIX_SQINT_SQB_ALLOC_FAIL = 3, +}; + +#define NIX_SQINT_BITS (BIT_ULL(NIX_SQINT_LMT_ERR) | \ + BIT_ULL(NIX_SQINT_MNQ_ERR) | \ + BIT_ULL(NIX_SQINT_SEND_ERR) | \ + BIT_ULL(NIX_SQINT_SQB_ALLOC_FAIL)) + +enum nix_sqoperr_e { + NIX_SQOPERR_OOR = 0, + NIX_SQOPERR_CTX_FAULT = 1, + NIX_SQOPERR_CTX_POISON = 2, + NIX_SQOPERR_DISABLED = 3, + NIX_SQOPERR_SIZE_ERR = 4, + NIX_SQOPERR_OFLOW = 5, + NIX_SQOPERR_SQB_NULL = 6, + NIX_SQOPERR_SQB_FAULT = 7, + NIX_SQOPERR_SQE_SZ_ZERO = 8, + NIX_SQOPERR_MAX, +}; + +enum nix_mnqerr_e { + NIX_MNQERR_SQ_CTX_FAULT = 0, + NIX_MNQERR_SQ_CTX_POISON = 1, + NIX_MNQERR_SQB_FAULT = 2, + NIX_MNQERR_SQB_POISON = 3, + NIX_MNQERR_TOTAL_ERR = 4, + NIX_MNQERR_LSO_ERR = 5, + NIX_MNQERR_CQ_QUERY_ERR = 6, + NIX_MNQERR_MAX_SQE_SIZE_ERR = 7, + NIX_MNQERR_MAXLEN_ERR = 8, + NIX_MNQERR_SQE_SIZEM1_ZERO = 9, + NIX_MNQERR_MAX, +}; + +enum nix_snd_status_e { + NIX_SND_STATUS_GOOD = 0x0, + NIX_SND_STATUS_SQ_CTX_FAULT = 0x1, + NIX_SND_STATUS_SQ_CTX_POISON = 0x2, + NIX_SND_STATUS_SQB_FAULT = 0x3, + NIX_SND_STATUS_SQB_POISON = 0x4, + NIX_SND_STATUS_HDR_ERR = 0x5, + NIX_SND_STATUS_EXT_ERR = 0x6, + NIX_SND_STATUS_JUMP_FAULT = 0x7, + NIX_SND_STATUS_JUMP_POISON = 0x8, + NIX_SND_STATUS_CRC_ERR = 0x10, + NIX_SND_STATUS_IMM_ERR = 0x11, + NIX_SND_STATUS_SG_ERR = 0x12, + NIX_SND_STATUS_MEM_ERR = 0x13, + NIX_SND_STATUS_INVALID_SUBDC = 0x14, + NIX_SND_STATUS_SUBDC_ORDER_ERR = 0x15, + NIX_SND_STATUS_DATA_FAULT = 0x16, + NIX_SND_STATUS_DATA_POISON = 0x17, + NIX_SND_STATUS_NPC_DROP_ACTION = 0x20, + NIX_SND_STATUS_LOCK_VIOL = 0x21, + NIX_SND_STATUS_NPC_UCAST_CHAN_ERR = 0x22, + NIX_SND_STATUS_NPC_MCAST_CHAN_ERR = 0x23, + NIX_SND_STATUS_NPC_MCAST_ABORT = 0x24, + NIX_SND_STATUS_NPC_VTAG_PTR_ERR = 0x25, + NIX_SND_STATUS_NPC_VTAG_SIZE_ERR = 0x26, + NIX_SND_STATUS_SEND_MEM_FAULT = 0x27, + NIX_SND_STATUS_SEND_STATS_ERR = 0x28, + NIX_SND_STATUS_MAX, +}; + +#endif /* OTX2_STRUCT_H */ diff --git a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_tc.c b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_tc.c new file mode 100644 index 000000000..bb77ab7dd --- /dev/null +++ b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_tc.c @@ -0,0 +1,1380 @@ +// SPDX-License-Identifier: GPL-2.0 +/* Marvell RVU Ethernet driver + * + * Copyright (C) 2021 Marvell. + * + */ + +#include <linux/netdevice.h> +#include <linux/etherdevice.h> +#include <linux/inetdevice.h> +#include <linux/rhashtable.h> +#include <linux/bitfield.h> +#include <net/flow_dissector.h> +#include <net/pkt_cls.h> +#include <net/tc_act/tc_gact.h> +#include <net/tc_act/tc_mirred.h> +#include <net/tc_act/tc_vlan.h> +#include <net/ipv6.h> + +#include "cn10k.h" +#include "otx2_common.h" + +/* Egress rate limiting definitions */ +#define MAX_BURST_EXPONENT 0x0FULL +#define MAX_BURST_MANTISSA 0xFFULL +#define MAX_BURST_SIZE 130816ULL +#define MAX_RATE_DIVIDER_EXPONENT 12ULL +#define MAX_RATE_EXPONENT 0x0FULL +#define MAX_RATE_MANTISSA 0xFFULL + +#define CN10K_MAX_BURST_MANTISSA 0x7FFFULL +#define CN10K_MAX_BURST_SIZE 8453888ULL + +/* Bitfields in NIX_TLX_PIR register */ +#define TLX_RATE_MANTISSA GENMASK_ULL(8, 1) +#define TLX_RATE_EXPONENT GENMASK_ULL(12, 9) +#define TLX_RATE_DIVIDER_EXPONENT GENMASK_ULL(16, 13) +#define TLX_BURST_MANTISSA GENMASK_ULL(36, 29) +#define TLX_BURST_EXPONENT GENMASK_ULL(40, 37) + +#define CN10K_TLX_BURST_MANTISSA GENMASK_ULL(43, 29) +#define CN10K_TLX_BURST_EXPONENT GENMASK_ULL(47, 44) + +struct otx2_tc_flow_stats { + u64 bytes; + u64 pkts; + u64 used; +}; + +struct otx2_tc_flow { + struct list_head list; + unsigned long cookie; + struct rcu_head rcu; + struct otx2_tc_flow_stats stats; + spinlock_t lock; /* lock for stats */ + u16 rq; + u16 entry; + u16 leaf_profile; + bool is_act_police; + u32 prio; + struct npc_install_flow_req req; + u64 rate; + u32 burst; + bool is_pps; +}; + +static void otx2_get_egress_burst_cfg(struct otx2_nic *nic, u32 burst, + u32 *burst_exp, u32 *burst_mantissa) +{ + int max_burst, max_mantissa; + unsigned int tmp; + + if (is_dev_otx2(nic->pdev)) { + max_burst = MAX_BURST_SIZE; + max_mantissa = MAX_BURST_MANTISSA; + } else { + max_burst = CN10K_MAX_BURST_SIZE; + max_mantissa = CN10K_MAX_BURST_MANTISSA; + } + + /* Burst is calculated as + * ((256 + BURST_MANTISSA) << (1 + BURST_EXPONENT)) / 256 + * Max supported burst size is 130,816 bytes. + */ + burst = min_t(u32, burst, max_burst); + if (burst) { + *burst_exp = ilog2(burst) ? ilog2(burst) - 1 : 0; + tmp = burst - rounddown_pow_of_two(burst); + if (burst < max_mantissa) + *burst_mantissa = tmp * 2; + else + *burst_mantissa = tmp / (1ULL << (*burst_exp - 7)); + } else { + *burst_exp = MAX_BURST_EXPONENT; + *burst_mantissa = max_mantissa; + } +} + +static void otx2_get_egress_rate_cfg(u64 maxrate, u32 *exp, + u32 *mantissa, u32 *div_exp) +{ + u64 tmp; + + /* Rate calculation by hardware + * + * PIR_ADD = ((256 + mantissa) << exp) / 256 + * rate = (2 * PIR_ADD) / ( 1 << div_exp) + * The resultant rate is in Mbps. + */ + + /* 2Mbps to 100Gbps can be expressed with div_exp = 0. + * Setting this to '0' will ease the calculation of + * exponent and mantissa. + */ + *div_exp = 0; + + if (maxrate) { + *exp = ilog2(maxrate) ? ilog2(maxrate) - 1 : 0; + tmp = maxrate - rounddown_pow_of_two(maxrate); + if (maxrate < MAX_RATE_MANTISSA) + *mantissa = tmp * 2; + else + *mantissa = tmp / (1ULL << (*exp - 7)); + } else { + /* Instead of disabling rate limiting, set all values to max */ + *exp = MAX_RATE_EXPONENT; + *mantissa = MAX_RATE_MANTISSA; + } +} + +static u64 otx2_get_txschq_rate_regval(struct otx2_nic *nic, + u64 maxrate, u32 burst) +{ + u32 burst_exp, burst_mantissa; + u32 exp, mantissa, div_exp; + u64 regval = 0; + + /* Get exponent and mantissa values from the desired rate */ + otx2_get_egress_burst_cfg(nic, burst, &burst_exp, &burst_mantissa); + otx2_get_egress_rate_cfg(maxrate, &exp, &mantissa, &div_exp); + + if (is_dev_otx2(nic->pdev)) { + regval = FIELD_PREP(TLX_BURST_EXPONENT, (u64)burst_exp) | + FIELD_PREP(TLX_BURST_MANTISSA, (u64)burst_mantissa) | + FIELD_PREP(TLX_RATE_DIVIDER_EXPONENT, div_exp) | + FIELD_PREP(TLX_RATE_EXPONENT, exp) | + FIELD_PREP(TLX_RATE_MANTISSA, mantissa) | BIT_ULL(0); + } else { + regval = FIELD_PREP(CN10K_TLX_BURST_EXPONENT, (u64)burst_exp) | + FIELD_PREP(CN10K_TLX_BURST_MANTISSA, (u64)burst_mantissa) | + FIELD_PREP(TLX_RATE_DIVIDER_EXPONENT, div_exp) | + FIELD_PREP(TLX_RATE_EXPONENT, exp) | + FIELD_PREP(TLX_RATE_MANTISSA, mantissa) | BIT_ULL(0); + } + + return regval; +} + +static int otx2_set_matchall_egress_rate(struct otx2_nic *nic, + u32 burst, u64 maxrate) +{ + struct otx2_hw *hw = &nic->hw; + struct nix_txschq_config *req; + int txschq, err; + + /* All SQs share the same TL4, so pick the first scheduler */ + txschq = hw->txschq_list[NIX_TXSCH_LVL_TL4][0]; + + mutex_lock(&nic->mbox.lock); + req = otx2_mbox_alloc_msg_nix_txschq_cfg(&nic->mbox); + if (!req) { + mutex_unlock(&nic->mbox.lock); + return -ENOMEM; + } + + req->lvl = NIX_TXSCH_LVL_TL4; + req->num_regs = 1; + req->reg[0] = NIX_AF_TL4X_PIR(txschq); + req->regval[0] = otx2_get_txschq_rate_regval(nic, maxrate, burst); + + err = otx2_sync_mbox_msg(&nic->mbox); + mutex_unlock(&nic->mbox.lock); + return err; +} + +static int otx2_tc_validate_flow(struct otx2_nic *nic, + struct flow_action *actions, + struct netlink_ext_ack *extack) +{ + if (nic->flags & OTX2_FLAG_INTF_DOWN) { + NL_SET_ERR_MSG_MOD(extack, "Interface not initialized"); + return -EINVAL; + } + + if (!flow_action_has_entries(actions)) { + NL_SET_ERR_MSG_MOD(extack, "MATCHALL offload called with no action"); + return -EINVAL; + } + + if (!flow_offload_has_one_action(actions)) { + NL_SET_ERR_MSG_MOD(extack, + "Egress MATCHALL offload supports only 1 policing action"); + return -EINVAL; + } + return 0; +} + +static int otx2_policer_validate(const struct flow_action *action, + const struct flow_action_entry *act, + struct netlink_ext_ack *extack) +{ + if (act->police.exceed.act_id != FLOW_ACTION_DROP) { + NL_SET_ERR_MSG_MOD(extack, + "Offload not supported when exceed action is not drop"); + return -EOPNOTSUPP; + } + + if (act->police.notexceed.act_id != FLOW_ACTION_PIPE && + act->police.notexceed.act_id != FLOW_ACTION_ACCEPT) { + NL_SET_ERR_MSG_MOD(extack, + "Offload not supported when conform action is not pipe or ok"); + return -EOPNOTSUPP; + } + + if (act->police.notexceed.act_id == FLOW_ACTION_ACCEPT && + !flow_action_is_last_entry(action, act)) { + NL_SET_ERR_MSG_MOD(extack, + "Offload not supported when conform action is ok, but action is not last"); + return -EOPNOTSUPP; + } + + if (act->police.peakrate_bytes_ps || + act->police.avrate || act->police.overhead) { + NL_SET_ERR_MSG_MOD(extack, + "Offload not supported when peakrate/avrate/overhead is configured"); + return -EOPNOTSUPP; + } + + return 0; +} + +static int otx2_tc_egress_matchall_install(struct otx2_nic *nic, + struct tc_cls_matchall_offload *cls) +{ + struct netlink_ext_ack *extack = cls->common.extack; + struct flow_action *actions = &cls->rule->action; + struct flow_action_entry *entry; + u64 rate; + int err; + + err = otx2_tc_validate_flow(nic, actions, extack); + if (err) + return err; + + if (nic->flags & OTX2_FLAG_TC_MATCHALL_EGRESS_ENABLED) { + NL_SET_ERR_MSG_MOD(extack, + "Only one Egress MATCHALL ratelimiter can be offloaded"); + return -ENOMEM; + } + + entry = &cls->rule->action.entries[0]; + switch (entry->id) { + case FLOW_ACTION_POLICE: + err = otx2_policer_validate(&cls->rule->action, entry, extack); + if (err) + return err; + + if (entry->police.rate_pkt_ps) { + NL_SET_ERR_MSG_MOD(extack, "QoS offload not support packets per second"); + return -EOPNOTSUPP; + } + /* Convert bytes per second to Mbps */ + rate = entry->police.rate_bytes_ps * 8; + rate = max_t(u64, rate / 1000000, 1); + err = otx2_set_matchall_egress_rate(nic, entry->police.burst, rate); + if (err) + return err; + nic->flags |= OTX2_FLAG_TC_MATCHALL_EGRESS_ENABLED; + break; + default: + NL_SET_ERR_MSG_MOD(extack, + "Only police action is supported with Egress MATCHALL offload"); + return -EOPNOTSUPP; + } + + return 0; +} + +static int otx2_tc_egress_matchall_delete(struct otx2_nic *nic, + struct tc_cls_matchall_offload *cls) +{ + struct netlink_ext_ack *extack = cls->common.extack; + int err; + + if (nic->flags & OTX2_FLAG_INTF_DOWN) { + NL_SET_ERR_MSG_MOD(extack, "Interface not initialized"); + return -EINVAL; + } + + err = otx2_set_matchall_egress_rate(nic, 0, 0); + nic->flags &= ~OTX2_FLAG_TC_MATCHALL_EGRESS_ENABLED; + return err; +} + +static int otx2_tc_act_set_hw_police(struct otx2_nic *nic, + struct otx2_tc_flow *node) +{ + int rc; + + mutex_lock(&nic->mbox.lock); + + rc = cn10k_alloc_leaf_profile(nic, &node->leaf_profile); + if (rc) { + mutex_unlock(&nic->mbox.lock); + return rc; + } + + rc = cn10k_set_ipolicer_rate(nic, node->leaf_profile, + node->burst, node->rate, node->is_pps); + if (rc) + goto free_leaf; + + rc = cn10k_map_unmap_rq_policer(nic, node->rq, node->leaf_profile, true); + if (rc) + goto free_leaf; + + mutex_unlock(&nic->mbox.lock); + + return 0; + +free_leaf: + if (cn10k_free_leaf_profile(nic, node->leaf_profile)) + netdev_err(nic->netdev, + "Unable to free leaf bandwidth profile(%d)\n", + node->leaf_profile); + mutex_unlock(&nic->mbox.lock); + return rc; +} + +static int otx2_tc_act_set_police(struct otx2_nic *nic, + struct otx2_tc_flow *node, + struct flow_cls_offload *f, + u64 rate, u32 burst, u32 mark, + struct npc_install_flow_req *req, bool pps) +{ + struct netlink_ext_ack *extack = f->common.extack; + struct otx2_hw *hw = &nic->hw; + int rq_idx, rc; + + rq_idx = find_first_zero_bit(&nic->rq_bmap, hw->rx_queues); + if (rq_idx >= hw->rx_queues) { + NL_SET_ERR_MSG_MOD(extack, "Police action rules exceeded"); + return -EINVAL; + } + + req->match_id = mark & 0xFFFFULL; + req->index = rq_idx; + req->op = NIX_RX_ACTIONOP_UCAST; + + node->is_act_police = true; + node->rq = rq_idx; + node->burst = burst; + node->rate = rate; + node->is_pps = pps; + + rc = otx2_tc_act_set_hw_police(nic, node); + if (!rc) + set_bit(rq_idx, &nic->rq_bmap); + + return rc; +} + +static int otx2_tc_parse_actions(struct otx2_nic *nic, + struct flow_action *flow_action, + struct npc_install_flow_req *req, + struct flow_cls_offload *f, + struct otx2_tc_flow *node) +{ + struct netlink_ext_ack *extack = f->common.extack; + struct flow_action_entry *act; + struct net_device *target; + struct otx2_nic *priv; + u32 burst, mark = 0; + u8 nr_police = 0; + bool pps = false; + u64 rate; + int err; + int i; + + if (!flow_action_has_entries(flow_action)) { + NL_SET_ERR_MSG_MOD(extack, "no tc actions specified"); + return -EINVAL; + } + + flow_action_for_each(i, act, flow_action) { + switch (act->id) { + case FLOW_ACTION_DROP: + req->op = NIX_RX_ACTIONOP_DROP; + return 0; + case FLOW_ACTION_ACCEPT: + req->op = NIX_RX_ACTION_DEFAULT; + return 0; + case FLOW_ACTION_REDIRECT_INGRESS: + target = act->dev; + priv = netdev_priv(target); + /* npc_install_flow_req doesn't support passing a target pcifunc */ + if (rvu_get_pf(nic->pcifunc) != rvu_get_pf(priv->pcifunc)) { + NL_SET_ERR_MSG_MOD(extack, + "can't redirect to other pf/vf"); + return -EOPNOTSUPP; + } + req->vf = priv->pcifunc & RVU_PFVF_FUNC_MASK; + req->op = NIX_RX_ACTION_DEFAULT; + return 0; + case FLOW_ACTION_VLAN_POP: + req->vtag0_valid = true; + /* use RX_VTAG_TYPE7 which is initialized to strip vlan tag */ + req->vtag0_type = NIX_AF_LFX_RX_VTAG_TYPE7; + break; + case FLOW_ACTION_POLICE: + /* Ingress ratelimiting is not supported on OcteonTx2 */ + if (is_dev_otx2(nic->pdev)) { + NL_SET_ERR_MSG_MOD(extack, + "Ingress policing not supported on this platform"); + return -EOPNOTSUPP; + } + + err = otx2_policer_validate(flow_action, act, extack); + if (err) + return err; + + if (act->police.rate_bytes_ps > 0) { + rate = act->police.rate_bytes_ps * 8; + burst = act->police.burst; + } else if (act->police.rate_pkt_ps > 0) { + /* The algorithm used to calculate rate + * mantissa, exponent values for a given token + * rate (token can be byte or packet) requires + * token rate to be mutiplied by 8. + */ + rate = act->police.rate_pkt_ps * 8; + burst = act->police.burst_pkt; + pps = true; + } + nr_police++; + break; + case FLOW_ACTION_MARK: + mark = act->mark; + break; + default: + return -EOPNOTSUPP; + } + } + + if (nr_police > 1) { + NL_SET_ERR_MSG_MOD(extack, + "rate limit police offload requires a single action"); + return -EOPNOTSUPP; + } + + if (nr_police) + return otx2_tc_act_set_police(nic, node, f, rate, burst, + mark, req, pps); + + return 0; +} + +static int otx2_tc_prepare_flow(struct otx2_nic *nic, struct otx2_tc_flow *node, + struct flow_cls_offload *f, + struct npc_install_flow_req *req) +{ + struct netlink_ext_ack *extack = f->common.extack; + struct flow_msg *flow_spec = &req->packet; + struct flow_msg *flow_mask = &req->mask; + struct flow_dissector *dissector; + struct flow_rule *rule; + u8 ip_proto = 0; + + rule = flow_cls_offload_flow_rule(f); + dissector = rule->match.dissector; + + if ((dissector->used_keys & + ~(BIT(FLOW_DISSECTOR_KEY_CONTROL) | + BIT(FLOW_DISSECTOR_KEY_BASIC) | + BIT(FLOW_DISSECTOR_KEY_ETH_ADDRS) | + BIT(FLOW_DISSECTOR_KEY_VLAN) | + BIT(FLOW_DISSECTOR_KEY_IPV4_ADDRS) | + BIT(FLOW_DISSECTOR_KEY_IPV6_ADDRS) | + BIT(FLOW_DISSECTOR_KEY_PORTS) | + BIT(FLOW_DISSECTOR_KEY_IP)))) { + netdev_info(nic->netdev, "unsupported flow used key 0x%x", + dissector->used_keys); + return -EOPNOTSUPP; + } + + if (flow_rule_match_key(rule, FLOW_DISSECTOR_KEY_BASIC)) { + struct flow_match_basic match; + + flow_rule_match_basic(rule, &match); + + /* All EtherTypes can be matched, no hw limitation */ + flow_spec->etype = match.key->n_proto; + flow_mask->etype = match.mask->n_proto; + req->features |= BIT_ULL(NPC_ETYPE); + + if (match.mask->ip_proto && + (match.key->ip_proto != IPPROTO_TCP && + match.key->ip_proto != IPPROTO_UDP && + match.key->ip_proto != IPPROTO_SCTP && + match.key->ip_proto != IPPROTO_ICMP && + match.key->ip_proto != IPPROTO_ICMPV6)) { + netdev_info(nic->netdev, + "ip_proto=0x%x not supported\n", + match.key->ip_proto); + return -EOPNOTSUPP; + } + if (match.mask->ip_proto) + ip_proto = match.key->ip_proto; + + if (ip_proto == IPPROTO_UDP) + req->features |= BIT_ULL(NPC_IPPROTO_UDP); + else if (ip_proto == IPPROTO_TCP) + req->features |= BIT_ULL(NPC_IPPROTO_TCP); + else if (ip_proto == IPPROTO_SCTP) + req->features |= BIT_ULL(NPC_IPPROTO_SCTP); + else if (ip_proto == IPPROTO_ICMP) + req->features |= BIT_ULL(NPC_IPPROTO_ICMP); + else if (ip_proto == IPPROTO_ICMPV6) + req->features |= BIT_ULL(NPC_IPPROTO_ICMP6); + } + + if (flow_rule_match_key(rule, FLOW_DISSECTOR_KEY_ETH_ADDRS)) { + struct flow_match_eth_addrs match; + + flow_rule_match_eth_addrs(rule, &match); + if (!is_zero_ether_addr(match.mask->src)) { + NL_SET_ERR_MSG_MOD(extack, "src mac match not supported"); + return -EOPNOTSUPP; + } + + if (!is_zero_ether_addr(match.mask->dst)) { + ether_addr_copy(flow_spec->dmac, (u8 *)&match.key->dst); + ether_addr_copy(flow_mask->dmac, + (u8 *)&match.mask->dst); + req->features |= BIT_ULL(NPC_DMAC); + } + } + + if (flow_rule_match_key(rule, FLOW_DISSECTOR_KEY_IP)) { + struct flow_match_ip match; + + flow_rule_match_ip(rule, &match); + if ((ntohs(flow_spec->etype) != ETH_P_IP) && + match.mask->tos) { + NL_SET_ERR_MSG_MOD(extack, "tos not supported"); + return -EOPNOTSUPP; + } + if (match.mask->ttl) { + NL_SET_ERR_MSG_MOD(extack, "ttl not supported"); + return -EOPNOTSUPP; + } + flow_spec->tos = match.key->tos; + flow_mask->tos = match.mask->tos; + req->features |= BIT_ULL(NPC_TOS); + } + + if (flow_rule_match_key(rule, FLOW_DISSECTOR_KEY_VLAN)) { + struct flow_match_vlan match; + u16 vlan_tci, vlan_tci_mask; + + flow_rule_match_vlan(rule, &match); + + if (ntohs(match.key->vlan_tpid) != ETH_P_8021Q) { + netdev_err(nic->netdev, "vlan tpid 0x%x not supported\n", + ntohs(match.key->vlan_tpid)); + return -EOPNOTSUPP; + } + + if (!match.mask->vlan_id) { + struct flow_action_entry *act; + int i; + + flow_action_for_each(i, act, &rule->action) { + if (act->id == FLOW_ACTION_DROP) { + netdev_err(nic->netdev, + "vlan tpid 0x%x with vlan_id %d is not supported for DROP rule.\n", + ntohs(match.key->vlan_tpid), + match.key->vlan_id); + return -EOPNOTSUPP; + } + } + } + + if (match.mask->vlan_id || + match.mask->vlan_dei || + match.mask->vlan_priority) { + vlan_tci = match.key->vlan_id | + match.key->vlan_dei << 12 | + match.key->vlan_priority << 13; + + vlan_tci_mask = match.mask->vlan_id | + match.mask->vlan_dei << 12 | + match.mask->vlan_priority << 13; + + flow_spec->vlan_tci = htons(vlan_tci); + flow_mask->vlan_tci = htons(vlan_tci_mask); + req->features |= BIT_ULL(NPC_OUTER_VID); + } + } + + if (flow_rule_match_key(rule, FLOW_DISSECTOR_KEY_IPV4_ADDRS)) { + struct flow_match_ipv4_addrs match; + + flow_rule_match_ipv4_addrs(rule, &match); + + flow_spec->ip4dst = match.key->dst; + flow_mask->ip4dst = match.mask->dst; + req->features |= BIT_ULL(NPC_DIP_IPV4); + + flow_spec->ip4src = match.key->src; + flow_mask->ip4src = match.mask->src; + req->features |= BIT_ULL(NPC_SIP_IPV4); + } else if (flow_rule_match_key(rule, FLOW_DISSECTOR_KEY_IPV6_ADDRS)) { + struct flow_match_ipv6_addrs match; + + flow_rule_match_ipv6_addrs(rule, &match); + + if (ipv6_addr_loopback(&match.key->dst) || + ipv6_addr_loopback(&match.key->src)) { + NL_SET_ERR_MSG_MOD(extack, + "Flow matching IPv6 loopback addr not supported"); + return -EOPNOTSUPP; + } + + if (!ipv6_addr_any(&match.mask->dst)) { + memcpy(&flow_spec->ip6dst, + (struct in6_addr *)&match.key->dst, + sizeof(flow_spec->ip6dst)); + memcpy(&flow_mask->ip6dst, + (struct in6_addr *)&match.mask->dst, + sizeof(flow_spec->ip6dst)); + req->features |= BIT_ULL(NPC_DIP_IPV6); + } + + if (!ipv6_addr_any(&match.mask->src)) { + memcpy(&flow_spec->ip6src, + (struct in6_addr *)&match.key->src, + sizeof(flow_spec->ip6src)); + memcpy(&flow_mask->ip6src, + (struct in6_addr *)&match.mask->src, + sizeof(flow_spec->ip6src)); + req->features |= BIT_ULL(NPC_SIP_IPV6); + } + } + + if (flow_rule_match_key(rule, FLOW_DISSECTOR_KEY_PORTS)) { + struct flow_match_ports match; + + flow_rule_match_ports(rule, &match); + + flow_spec->dport = match.key->dst; + flow_mask->dport = match.mask->dst; + + if (flow_mask->dport) { + if (ip_proto == IPPROTO_UDP) + req->features |= BIT_ULL(NPC_DPORT_UDP); + else if (ip_proto == IPPROTO_TCP) + req->features |= BIT_ULL(NPC_DPORT_TCP); + else if (ip_proto == IPPROTO_SCTP) + req->features |= BIT_ULL(NPC_DPORT_SCTP); + } + + flow_spec->sport = match.key->src; + flow_mask->sport = match.mask->src; + + if (flow_mask->sport) { + if (ip_proto == IPPROTO_UDP) + req->features |= BIT_ULL(NPC_SPORT_UDP); + else if (ip_proto == IPPROTO_TCP) + req->features |= BIT_ULL(NPC_SPORT_TCP); + else if (ip_proto == IPPROTO_SCTP) + req->features |= BIT_ULL(NPC_SPORT_SCTP); + } + } + + return otx2_tc_parse_actions(nic, &rule->action, req, f, node); +} + +static void otx2_destroy_tc_flow_list(struct otx2_nic *pfvf) +{ + struct otx2_flow_config *flow_cfg = pfvf->flow_cfg; + struct otx2_tc_flow *iter, *tmp; + + if (!(pfvf->flags & OTX2_FLAG_MCAM_ENTRIES_ALLOC)) + return; + + list_for_each_entry_safe(iter, tmp, &flow_cfg->flow_list_tc, list) { + list_del(&iter->list); + kfree(iter); + flow_cfg->nr_flows--; + } +} + +static struct otx2_tc_flow *otx2_tc_get_entry_by_cookie(struct otx2_flow_config *flow_cfg, + unsigned long cookie) +{ + struct otx2_tc_flow *tmp; + + list_for_each_entry(tmp, &flow_cfg->flow_list_tc, list) { + if (tmp->cookie == cookie) + return tmp; + } + + return NULL; +} + +static struct otx2_tc_flow *otx2_tc_get_entry_by_index(struct otx2_flow_config *flow_cfg, + int index) +{ + struct otx2_tc_flow *tmp; + int i = 0; + + list_for_each_entry(tmp, &flow_cfg->flow_list_tc, list) { + if (i == index) + return tmp; + i++; + } + + return NULL; +} + +static void otx2_tc_del_from_flow_list(struct otx2_flow_config *flow_cfg, + struct otx2_tc_flow *node) +{ + struct list_head *pos, *n; + struct otx2_tc_flow *tmp; + + list_for_each_safe(pos, n, &flow_cfg->flow_list_tc) { + tmp = list_entry(pos, struct otx2_tc_flow, list); + if (node == tmp) { + list_del(&node->list); + return; + } + } +} + +static int otx2_tc_add_to_flow_list(struct otx2_flow_config *flow_cfg, + struct otx2_tc_flow *node) +{ + struct list_head *pos, *n; + struct otx2_tc_flow *tmp; + int index = 0; + + /* If the flow list is empty then add the new node */ + if (list_empty(&flow_cfg->flow_list_tc)) { + list_add(&node->list, &flow_cfg->flow_list_tc); + return index; + } + + list_for_each_safe(pos, n, &flow_cfg->flow_list_tc) { + tmp = list_entry(pos, struct otx2_tc_flow, list); + if (node->prio < tmp->prio) + break; + index++; + } + + list_add(&node->list, pos->prev); + return index; +} + +static int otx2_add_mcam_flow_entry(struct otx2_nic *nic, struct npc_install_flow_req *req) +{ + struct npc_install_flow_req *tmp_req; + int err; + + mutex_lock(&nic->mbox.lock); + tmp_req = otx2_mbox_alloc_msg_npc_install_flow(&nic->mbox); + if (!tmp_req) { + mutex_unlock(&nic->mbox.lock); + return -ENOMEM; + } + + memcpy(tmp_req, req, sizeof(struct npc_install_flow_req)); + /* Send message to AF */ + err = otx2_sync_mbox_msg(&nic->mbox); + if (err) { + netdev_err(nic->netdev, "Failed to install MCAM flow entry %d\n", + req->entry); + mutex_unlock(&nic->mbox.lock); + return -EFAULT; + } + + mutex_unlock(&nic->mbox.lock); + return 0; +} + +static int otx2_del_mcam_flow_entry(struct otx2_nic *nic, u16 entry, u16 *cntr_val) +{ + struct npc_delete_flow_rsp *rsp; + struct npc_delete_flow_req *req; + int err; + + mutex_lock(&nic->mbox.lock); + req = otx2_mbox_alloc_msg_npc_delete_flow(&nic->mbox); + if (!req) { + mutex_unlock(&nic->mbox.lock); + return -ENOMEM; + } + + req->entry = entry; + + /* Send message to AF */ + err = otx2_sync_mbox_msg(&nic->mbox); + if (err) { + netdev_err(nic->netdev, "Failed to delete MCAM flow entry %d\n", + entry); + mutex_unlock(&nic->mbox.lock); + return -EFAULT; + } + + if (cntr_val) { + rsp = (struct npc_delete_flow_rsp *)otx2_mbox_get_rsp(&nic->mbox.mbox, + 0, &req->hdr); + if (IS_ERR(rsp)) { + netdev_err(nic->netdev, "Failed to get MCAM delete response for entry %d\n", + entry); + mutex_unlock(&nic->mbox.lock); + return -EFAULT; + } + + *cntr_val = rsp->cntr_val; + } + + mutex_unlock(&nic->mbox.lock); + return 0; +} + +static int otx2_tc_update_mcam_table_del_req(struct otx2_nic *nic, + struct otx2_flow_config *flow_cfg, + struct otx2_tc_flow *node) +{ + struct list_head *pos, *n; + struct otx2_tc_flow *tmp; + int i = 0, index = 0; + u16 cntr_val = 0; + + /* Find and delete the entry from the list and re-install + * all the entries from beginning to the index of the + * deleted entry to higher mcam indexes. + */ + list_for_each_safe(pos, n, &flow_cfg->flow_list_tc) { + tmp = list_entry(pos, struct otx2_tc_flow, list); + if (node == tmp) { + list_del(&tmp->list); + break; + } + + otx2_del_mcam_flow_entry(nic, tmp->entry, &cntr_val); + tmp->entry++; + tmp->req.entry = tmp->entry; + tmp->req.cntr_val = cntr_val; + index++; + } + + list_for_each_safe(pos, n, &flow_cfg->flow_list_tc) { + if (i == index) + break; + + tmp = list_entry(pos, struct otx2_tc_flow, list); + otx2_add_mcam_flow_entry(nic, &tmp->req); + i++; + } + + return 0; +} + +static int otx2_tc_update_mcam_table_add_req(struct otx2_nic *nic, + struct otx2_flow_config *flow_cfg, + struct otx2_tc_flow *node) +{ + int mcam_idx = flow_cfg->max_flows - flow_cfg->nr_flows - 1; + struct otx2_tc_flow *tmp; + int list_idx, i; + u16 cntr_val = 0; + + /* Find the index of the entry(list_idx) whose priority + * is greater than the new entry and re-install all + * the entries from beginning to list_idx to higher + * mcam indexes. + */ + list_idx = otx2_tc_add_to_flow_list(flow_cfg, node); + for (i = 0; i < list_idx; i++) { + tmp = otx2_tc_get_entry_by_index(flow_cfg, i); + if (!tmp) + return -ENOMEM; + + otx2_del_mcam_flow_entry(nic, tmp->entry, &cntr_val); + tmp->entry = flow_cfg->flow_ent[mcam_idx]; + tmp->req.entry = tmp->entry; + tmp->req.cntr_val = cntr_val; + otx2_add_mcam_flow_entry(nic, &tmp->req); + mcam_idx++; + } + + return mcam_idx; +} + +static int otx2_tc_update_mcam_table(struct otx2_nic *nic, + struct otx2_flow_config *flow_cfg, + struct otx2_tc_flow *node, + bool add_req) +{ + if (add_req) + return otx2_tc_update_mcam_table_add_req(nic, flow_cfg, node); + + return otx2_tc_update_mcam_table_del_req(nic, flow_cfg, node); +} + +static int otx2_tc_del_flow(struct otx2_nic *nic, + struct flow_cls_offload *tc_flow_cmd) +{ + struct otx2_flow_config *flow_cfg = nic->flow_cfg; + struct otx2_tc_flow *flow_node; + int err; + + flow_node = otx2_tc_get_entry_by_cookie(flow_cfg, tc_flow_cmd->cookie); + if (!flow_node) { + netdev_err(nic->netdev, "tc flow not found for cookie 0x%lx\n", + tc_flow_cmd->cookie); + return -EINVAL; + } + + if (flow_node->is_act_police) { + __clear_bit(flow_node->rq, &nic->rq_bmap); + + if (nic->flags & OTX2_FLAG_INTF_DOWN) + goto free_mcam_flow; + + mutex_lock(&nic->mbox.lock); + + err = cn10k_map_unmap_rq_policer(nic, flow_node->rq, + flow_node->leaf_profile, false); + if (err) + netdev_err(nic->netdev, + "Unmapping RQ %d & profile %d failed\n", + flow_node->rq, flow_node->leaf_profile); + + err = cn10k_free_leaf_profile(nic, flow_node->leaf_profile); + if (err) + netdev_err(nic->netdev, + "Unable to free leaf bandwidth profile(%d)\n", + flow_node->leaf_profile); + + mutex_unlock(&nic->mbox.lock); + } + +free_mcam_flow: + otx2_del_mcam_flow_entry(nic, flow_node->entry, NULL); + otx2_tc_update_mcam_table(nic, flow_cfg, flow_node, false); + kfree_rcu(flow_node, rcu); + flow_cfg->nr_flows--; + return 0; +} + +static int otx2_tc_add_flow(struct otx2_nic *nic, + struct flow_cls_offload *tc_flow_cmd) +{ + struct netlink_ext_ack *extack = tc_flow_cmd->common.extack; + struct otx2_flow_config *flow_cfg = nic->flow_cfg; + struct otx2_tc_flow *new_node, *old_node; + struct npc_install_flow_req *req, dummy; + int rc, err, mcam_idx; + + if (!(nic->flags & OTX2_FLAG_TC_FLOWER_SUPPORT)) + return -ENOMEM; + + if (nic->flags & OTX2_FLAG_INTF_DOWN) { + NL_SET_ERR_MSG_MOD(extack, "Interface not initialized"); + return -EINVAL; + } + + if (flow_cfg->nr_flows == flow_cfg->max_flows) { + NL_SET_ERR_MSG_MOD(extack, + "Free MCAM entry not available to add the flow"); + return -ENOMEM; + } + + /* allocate memory for the new flow and it's node */ + new_node = kzalloc(sizeof(*new_node), GFP_KERNEL); + if (!new_node) + return -ENOMEM; + spin_lock_init(&new_node->lock); + new_node->cookie = tc_flow_cmd->cookie; + new_node->prio = tc_flow_cmd->common.prio; + + memset(&dummy, 0, sizeof(struct npc_install_flow_req)); + + rc = otx2_tc_prepare_flow(nic, new_node, tc_flow_cmd, &dummy); + if (rc) { + kfree_rcu(new_node, rcu); + return rc; + } + + /* If a flow exists with the same cookie, delete it */ + old_node = otx2_tc_get_entry_by_cookie(flow_cfg, tc_flow_cmd->cookie); + if (old_node) + otx2_tc_del_flow(nic, tc_flow_cmd); + + mcam_idx = otx2_tc_update_mcam_table(nic, flow_cfg, new_node, true); + mutex_lock(&nic->mbox.lock); + req = otx2_mbox_alloc_msg_npc_install_flow(&nic->mbox); + if (!req) { + mutex_unlock(&nic->mbox.lock); + rc = -ENOMEM; + goto free_leaf; + } + + memcpy(&dummy.hdr, &req->hdr, sizeof(struct mbox_msghdr)); + memcpy(req, &dummy, sizeof(struct npc_install_flow_req)); + req->channel = nic->hw.rx_chan_base; + req->entry = flow_cfg->flow_ent[mcam_idx]; + req->intf = NIX_INTF_RX; + req->set_cntr = 1; + new_node->entry = req->entry; + + /* Send message to AF */ + rc = otx2_sync_mbox_msg(&nic->mbox); + if (rc) { + NL_SET_ERR_MSG_MOD(extack, "Failed to install MCAM flow entry"); + mutex_unlock(&nic->mbox.lock); + goto free_leaf; + } + + mutex_unlock(&nic->mbox.lock); + memcpy(&new_node->req, req, sizeof(struct npc_install_flow_req)); + + flow_cfg->nr_flows++; + return 0; + +free_leaf: + otx2_tc_del_from_flow_list(flow_cfg, new_node); + kfree_rcu(new_node, rcu); + if (new_node->is_act_police) { + mutex_lock(&nic->mbox.lock); + + err = cn10k_map_unmap_rq_policer(nic, new_node->rq, + new_node->leaf_profile, false); + if (err) + netdev_err(nic->netdev, + "Unmapping RQ %d & profile %d failed\n", + new_node->rq, new_node->leaf_profile); + err = cn10k_free_leaf_profile(nic, new_node->leaf_profile); + if (err) + netdev_err(nic->netdev, + "Unable to free leaf bandwidth profile(%d)\n", + new_node->leaf_profile); + + __clear_bit(new_node->rq, &nic->rq_bmap); + + mutex_unlock(&nic->mbox.lock); + } + + return rc; +} + +static int otx2_tc_get_flow_stats(struct otx2_nic *nic, + struct flow_cls_offload *tc_flow_cmd) +{ + struct npc_mcam_get_stats_req *req; + struct npc_mcam_get_stats_rsp *rsp; + struct otx2_tc_flow_stats *stats; + struct otx2_tc_flow *flow_node; + int err; + + flow_node = otx2_tc_get_entry_by_cookie(nic->flow_cfg, tc_flow_cmd->cookie); + if (!flow_node) { + netdev_info(nic->netdev, "tc flow not found for cookie %lx", + tc_flow_cmd->cookie); + return -EINVAL; + } + + mutex_lock(&nic->mbox.lock); + + req = otx2_mbox_alloc_msg_npc_mcam_entry_stats(&nic->mbox); + if (!req) { + mutex_unlock(&nic->mbox.lock); + return -ENOMEM; + } + + req->entry = flow_node->entry; + + err = otx2_sync_mbox_msg(&nic->mbox); + if (err) { + netdev_err(nic->netdev, "Failed to get stats for MCAM flow entry %d\n", + req->entry); + mutex_unlock(&nic->mbox.lock); + return -EFAULT; + } + + rsp = (struct npc_mcam_get_stats_rsp *)otx2_mbox_get_rsp + (&nic->mbox.mbox, 0, &req->hdr); + if (IS_ERR(rsp)) { + mutex_unlock(&nic->mbox.lock); + return PTR_ERR(rsp); + } + + mutex_unlock(&nic->mbox.lock); + + if (!rsp->stat_ena) + return -EINVAL; + + stats = &flow_node->stats; + + spin_lock(&flow_node->lock); + flow_stats_update(&tc_flow_cmd->stats, 0x0, rsp->stat - stats->pkts, 0x0, 0x0, + FLOW_ACTION_HW_STATS_IMMEDIATE); + stats->pkts = rsp->stat; + spin_unlock(&flow_node->lock); + + return 0; +} + +static int otx2_setup_tc_cls_flower(struct otx2_nic *nic, + struct flow_cls_offload *cls_flower) +{ + switch (cls_flower->command) { + case FLOW_CLS_REPLACE: + return otx2_tc_add_flow(nic, cls_flower); + case FLOW_CLS_DESTROY: + return otx2_tc_del_flow(nic, cls_flower); + case FLOW_CLS_STATS: + return otx2_tc_get_flow_stats(nic, cls_flower); + default: + return -EOPNOTSUPP; + } +} + +static int otx2_tc_ingress_matchall_install(struct otx2_nic *nic, + struct tc_cls_matchall_offload *cls) +{ + struct netlink_ext_ack *extack = cls->common.extack; + struct flow_action *actions = &cls->rule->action; + struct flow_action_entry *entry; + u64 rate; + int err; + + err = otx2_tc_validate_flow(nic, actions, extack); + if (err) + return err; + + if (nic->flags & OTX2_FLAG_TC_MATCHALL_INGRESS_ENABLED) { + NL_SET_ERR_MSG_MOD(extack, + "Only one ingress MATCHALL ratelimitter can be offloaded"); + return -ENOMEM; + } + + entry = &cls->rule->action.entries[0]; + switch (entry->id) { + case FLOW_ACTION_POLICE: + /* Ingress ratelimiting is not supported on OcteonTx2 */ + if (is_dev_otx2(nic->pdev)) { + NL_SET_ERR_MSG_MOD(extack, + "Ingress policing not supported on this platform"); + return -EOPNOTSUPP; + } + + err = cn10k_alloc_matchall_ipolicer(nic); + if (err) + return err; + + /* Convert to bits per second */ + rate = entry->police.rate_bytes_ps * 8; + err = cn10k_set_matchall_ipolicer_rate(nic, entry->police.burst, rate); + if (err) + return err; + nic->flags |= OTX2_FLAG_TC_MATCHALL_INGRESS_ENABLED; + break; + default: + NL_SET_ERR_MSG_MOD(extack, + "Only police action supported with Ingress MATCHALL offload"); + return -EOPNOTSUPP; + } + + return 0; +} + +static int otx2_tc_ingress_matchall_delete(struct otx2_nic *nic, + struct tc_cls_matchall_offload *cls) +{ + struct netlink_ext_ack *extack = cls->common.extack; + int err; + + if (nic->flags & OTX2_FLAG_INTF_DOWN) { + NL_SET_ERR_MSG_MOD(extack, "Interface not initialized"); + return -EINVAL; + } + + err = cn10k_free_matchall_ipolicer(nic); + nic->flags &= ~OTX2_FLAG_TC_MATCHALL_INGRESS_ENABLED; + return err; +} + +static int otx2_setup_tc_ingress_matchall(struct otx2_nic *nic, + struct tc_cls_matchall_offload *cls_matchall) +{ + switch (cls_matchall->command) { + case TC_CLSMATCHALL_REPLACE: + return otx2_tc_ingress_matchall_install(nic, cls_matchall); + case TC_CLSMATCHALL_DESTROY: + return otx2_tc_ingress_matchall_delete(nic, cls_matchall); + case TC_CLSMATCHALL_STATS: + default: + break; + } + + return -EOPNOTSUPP; +} + +static int otx2_setup_tc_block_ingress_cb(enum tc_setup_type type, + void *type_data, void *cb_priv) +{ + struct otx2_nic *nic = cb_priv; + bool ntuple; + + if (!tc_cls_can_offload_and_chain0(nic->netdev, type_data)) + return -EOPNOTSUPP; + + ntuple = nic->netdev->features & NETIF_F_NTUPLE; + switch (type) { + case TC_SETUP_CLSFLOWER: + if (ntuple) { + netdev_warn(nic->netdev, + "Can't install TC flower offload rule when NTUPLE is active"); + return -EOPNOTSUPP; + } + + return otx2_setup_tc_cls_flower(nic, type_data); + case TC_SETUP_CLSMATCHALL: + return otx2_setup_tc_ingress_matchall(nic, type_data); + default: + break; + } + + return -EOPNOTSUPP; +} + +static int otx2_setup_tc_egress_matchall(struct otx2_nic *nic, + struct tc_cls_matchall_offload *cls_matchall) +{ + switch (cls_matchall->command) { + case TC_CLSMATCHALL_REPLACE: + return otx2_tc_egress_matchall_install(nic, cls_matchall); + case TC_CLSMATCHALL_DESTROY: + return otx2_tc_egress_matchall_delete(nic, cls_matchall); + case TC_CLSMATCHALL_STATS: + default: + break; + } + + return -EOPNOTSUPP; +} + +static int otx2_setup_tc_block_egress_cb(enum tc_setup_type type, + void *type_data, void *cb_priv) +{ + struct otx2_nic *nic = cb_priv; + + if (!tc_cls_can_offload_and_chain0(nic->netdev, type_data)) + return -EOPNOTSUPP; + + switch (type) { + case TC_SETUP_CLSMATCHALL: + return otx2_setup_tc_egress_matchall(nic, type_data); + default: + break; + } + + return -EOPNOTSUPP; +} + +static LIST_HEAD(otx2_block_cb_list); + +static int otx2_setup_tc_block(struct net_device *netdev, + struct flow_block_offload *f) +{ + struct otx2_nic *nic = netdev_priv(netdev); + flow_setup_cb_t *cb; + bool ingress; + + if (f->block_shared) + return -EOPNOTSUPP; + + if (f->binder_type == FLOW_BLOCK_BINDER_TYPE_CLSACT_INGRESS) { + cb = otx2_setup_tc_block_ingress_cb; + ingress = true; + } else if (f->binder_type == FLOW_BLOCK_BINDER_TYPE_CLSACT_EGRESS) { + cb = otx2_setup_tc_block_egress_cb; + ingress = false; + } else { + return -EOPNOTSUPP; + } + + return flow_block_cb_setup_simple(f, &otx2_block_cb_list, cb, + nic, nic, ingress); +} + +int otx2_setup_tc(struct net_device *netdev, enum tc_setup_type type, + void *type_data) +{ + switch (type) { + case TC_SETUP_BLOCK: + return otx2_setup_tc_block(netdev, type_data); + default: + return -EOPNOTSUPP; + } +} +EXPORT_SYMBOL(otx2_setup_tc); + +int otx2_init_tc(struct otx2_nic *nic) +{ + /* Exclude receive queue 0 being used for police action */ + set_bit(0, &nic->rq_bmap); + + if (!nic->flow_cfg) { + netdev_err(nic->netdev, + "Can't init TC, nic->flow_cfg is not setup\n"); + return -EINVAL; + } + + return 0; +} +EXPORT_SYMBOL(otx2_init_tc); + +void otx2_shutdown_tc(struct otx2_nic *nic) +{ + otx2_destroy_tc_flow_list(nic); +} +EXPORT_SYMBOL(otx2_shutdown_tc); + +static void otx2_tc_config_ingress_rule(struct otx2_nic *nic, + struct otx2_tc_flow *node) +{ + struct npc_install_flow_req *req; + + if (otx2_tc_act_set_hw_police(nic, node)) + return; + + mutex_lock(&nic->mbox.lock); + + req = otx2_mbox_alloc_msg_npc_install_flow(&nic->mbox); + if (!req) + goto err; + + memcpy(req, &node->req, sizeof(struct npc_install_flow_req)); + + if (otx2_sync_mbox_msg(&nic->mbox)) + netdev_err(nic->netdev, + "Failed to install MCAM flow entry for ingress rule"); +err: + mutex_unlock(&nic->mbox.lock); +} + +void otx2_tc_apply_ingress_police_rules(struct otx2_nic *nic) +{ + struct otx2_flow_config *flow_cfg = nic->flow_cfg; + struct otx2_tc_flow *node; + + /* If any ingress policer rules exist for the interface then + * apply those rules. Ingress policer rules depend on bandwidth + * profiles linked to the receive queues. Since no receive queues + * exist when interface is down, ingress policer rules are stored + * and configured in hardware after all receive queues are allocated + * in otx2_open. + */ + list_for_each_entry(node, &flow_cfg->flow_list_tc, list) { + if (node->is_act_police) + otx2_tc_config_ingress_rule(nic, node); + } +} +EXPORT_SYMBOL(otx2_tc_apply_ingress_police_rules); diff --git a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_txrx.c b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_txrx.c new file mode 100644 index 000000000..aee392a15 --- /dev/null +++ b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_txrx.c @@ -0,0 +1,1438 @@ +// SPDX-License-Identifier: GPL-2.0 +/* Marvell RVU Ethernet driver + * + * Copyright (C) 2020 Marvell. + * + */ + +#include <linux/etherdevice.h> +#include <net/ip.h> +#include <net/tso.h> +#include <linux/bpf.h> +#include <linux/bpf_trace.h> +#include <net/ip6_checksum.h> + +#include "otx2_reg.h" +#include "otx2_common.h" +#include "otx2_struct.h" +#include "otx2_txrx.h" +#include "otx2_ptp.h" +#include "cn10k.h" + +#define CQE_ADDR(CQ, idx) ((CQ)->cqe_base + ((CQ)->cqe_size * (idx))) +#define PTP_PORT 0x13F +/* PTPv2 header Original Timestamp starts at byte offset 34 and + * contains 6 byte seconds field and 4 byte nano seconds field. + */ +#define PTP_SYNC_SEC_OFFSET 34 + +static bool otx2_xdp_rcv_pkt_handler(struct otx2_nic *pfvf, + struct bpf_prog *prog, + struct nix_cqe_rx_s *cqe, + struct otx2_cq_queue *cq, + bool *need_xdp_flush); + +static int otx2_nix_cq_op_status(struct otx2_nic *pfvf, + struct otx2_cq_queue *cq) +{ + u64 incr = (u64)(cq->cq_idx) << 32; + u64 status; + + status = otx2_atomic64_fetch_add(incr, pfvf->cq_op_addr); + + if (unlikely(status & BIT_ULL(CQ_OP_STAT_OP_ERR) || + status & BIT_ULL(CQ_OP_STAT_CQ_ERR))) { + dev_err(pfvf->dev, "CQ stopped due to error"); + return -EINVAL; + } + + cq->cq_tail = status & 0xFFFFF; + cq->cq_head = (status >> 20) & 0xFFFFF; + if (cq->cq_tail < cq->cq_head) + cq->pend_cqe = (cq->cqe_cnt - cq->cq_head) + + cq->cq_tail; + else + cq->pend_cqe = cq->cq_tail - cq->cq_head; + + return 0; +} + +static struct nix_cqe_hdr_s *otx2_get_next_cqe(struct otx2_cq_queue *cq) +{ + struct nix_cqe_hdr_s *cqe_hdr; + + cqe_hdr = (struct nix_cqe_hdr_s *)CQE_ADDR(cq, cq->cq_head); + if (cqe_hdr->cqe_type == NIX_XQE_TYPE_INVALID) + return NULL; + + cq->cq_head++; + cq->cq_head &= (cq->cqe_cnt - 1); + + return cqe_hdr; +} + +static unsigned int frag_num(unsigned int i) +{ +#ifdef __BIG_ENDIAN + return (i & ~3) + 3 - (i & 3); +#else + return i; +#endif +} + +static dma_addr_t otx2_dma_map_skb_frag(struct otx2_nic *pfvf, + struct sk_buff *skb, int seg, int *len) +{ + const skb_frag_t *frag; + struct page *page; + int offset; + + /* First segment is always skb->data */ + if (!seg) { + page = virt_to_page(skb->data); + offset = offset_in_page(skb->data); + *len = skb_headlen(skb); + } else { + frag = &skb_shinfo(skb)->frags[seg - 1]; + page = skb_frag_page(frag); + offset = skb_frag_off(frag); + *len = skb_frag_size(frag); + } + return otx2_dma_map_page(pfvf, page, offset, *len, DMA_TO_DEVICE); +} + +static void otx2_dma_unmap_skb_frags(struct otx2_nic *pfvf, struct sg_list *sg) +{ + int seg; + + for (seg = 0; seg < sg->num_segs; seg++) { + otx2_dma_unmap_page(pfvf, sg->dma_addr[seg], + sg->size[seg], DMA_TO_DEVICE); + } + sg->num_segs = 0; +} + +static void otx2_xdp_snd_pkt_handler(struct otx2_nic *pfvf, + struct otx2_snd_queue *sq, + struct nix_cqe_tx_s *cqe) +{ + struct nix_send_comp_s *snd_comp = &cqe->comp; + struct sg_list *sg; + struct page *page; + u64 pa; + + sg = &sq->sg[snd_comp->sqe_id]; + + pa = otx2_iova_to_phys(pfvf->iommu_domain, sg->dma_addr[0]); + otx2_dma_unmap_page(pfvf, sg->dma_addr[0], + sg->size[0], DMA_TO_DEVICE); + page = virt_to_page(phys_to_virt(pa)); + put_page(page); +} + +static void otx2_snd_pkt_handler(struct otx2_nic *pfvf, + struct otx2_cq_queue *cq, + struct otx2_snd_queue *sq, + struct nix_cqe_tx_s *cqe, + int budget, int *tx_pkts, int *tx_bytes) +{ + struct nix_send_comp_s *snd_comp = &cqe->comp; + struct skb_shared_hwtstamps ts; + struct sk_buff *skb = NULL; + u64 timestamp, tsns; + struct sg_list *sg; + int err; + + if (unlikely(snd_comp->status) && netif_msg_tx_err(pfvf)) + net_err_ratelimited("%s: TX%d: Error in send CQ status:%x\n", + pfvf->netdev->name, cq->cint_idx, + snd_comp->status); + + sg = &sq->sg[snd_comp->sqe_id]; + skb = (struct sk_buff *)sg->skb; + if (unlikely(!skb)) + return; + + if (skb_shinfo(skb)->tx_flags & SKBTX_IN_PROGRESS) { + timestamp = ((u64 *)sq->timestamps->base)[snd_comp->sqe_id]; + if (timestamp != 1) { + timestamp = pfvf->ptp->convert_tx_ptp_tstmp(timestamp); + err = otx2_ptp_tstamp2time(pfvf, timestamp, &tsns); + if (!err) { + memset(&ts, 0, sizeof(ts)); + ts.hwtstamp = ns_to_ktime(tsns); + skb_tstamp_tx(skb, &ts); + } + } + } + + *tx_bytes += skb->len; + (*tx_pkts)++; + otx2_dma_unmap_skb_frags(pfvf, sg); + napi_consume_skb(skb, budget); + sg->skb = (u64)NULL; +} + +static void otx2_set_rxtstamp(struct otx2_nic *pfvf, + struct sk_buff *skb, void *data) +{ + u64 timestamp, tsns; + int err; + + if (!(pfvf->flags & OTX2_FLAG_RX_TSTAMP_ENABLED)) + return; + + timestamp = pfvf->ptp->convert_rx_ptp_tstmp(*(u64 *)data); + /* The first 8 bytes is the timestamp */ + err = otx2_ptp_tstamp2time(pfvf, timestamp, &tsns); + if (err) + return; + + skb_hwtstamps(skb)->hwtstamp = ns_to_ktime(tsns); +} + +static bool otx2_skb_add_frag(struct otx2_nic *pfvf, struct sk_buff *skb, + u64 iova, int len, struct nix_rx_parse_s *parse, + int qidx) +{ + struct page *page; + int off = 0; + void *va; + + va = phys_to_virt(otx2_iova_to_phys(pfvf->iommu_domain, iova)); + + if (likely(!skb_shinfo(skb)->nr_frags)) { + /* Check if data starts at some nonzero offset + * from the start of the buffer. For now the + * only possible offset is 8 bytes in the case + * where packet is prepended by a timestamp. + */ + if (parse->laptr) { + otx2_set_rxtstamp(pfvf, skb, va); + off = OTX2_HW_TIMESTAMP_LEN; + } + } + + page = virt_to_page(va); + if (likely(skb_shinfo(skb)->nr_frags < MAX_SKB_FRAGS)) { + skb_add_rx_frag(skb, skb_shinfo(skb)->nr_frags, page, + va - page_address(page) + off, + len - off, pfvf->rbsize); + + otx2_dma_unmap_page(pfvf, iova - OTX2_HEAD_ROOM, + pfvf->rbsize, DMA_FROM_DEVICE); + return true; + } + + /* If more than MAX_SKB_FRAGS fragments are received then + * give back those buffer pointers to hardware for reuse. + */ + pfvf->hw_ops->aura_freeptr(pfvf, qidx, iova & ~0x07ULL); + + return false; +} + +static void otx2_set_rxhash(struct otx2_nic *pfvf, + struct nix_cqe_rx_s *cqe, struct sk_buff *skb) +{ + enum pkt_hash_types hash_type = PKT_HASH_TYPE_NONE; + struct otx2_rss_info *rss; + u32 hash = 0; + + if (!(pfvf->netdev->features & NETIF_F_RXHASH)) + return; + + rss = &pfvf->hw.rss_info; + if (rss->flowkey_cfg) { + if (rss->flowkey_cfg & + ~(NIX_FLOW_KEY_TYPE_IPV4 | NIX_FLOW_KEY_TYPE_IPV6)) + hash_type = PKT_HASH_TYPE_L4; + else + hash_type = PKT_HASH_TYPE_L3; + hash = cqe->hdr.flow_tag; + } + skb_set_hash(skb, hash, hash_type); +} + +static void otx2_free_rcv_seg(struct otx2_nic *pfvf, struct nix_cqe_rx_s *cqe, + int qidx) +{ + struct nix_rx_sg_s *sg = &cqe->sg; + void *end, *start; + u64 *seg_addr; + int seg; + + start = (void *)sg; + end = start + ((cqe->parse.desc_sizem1 + 1) * 16); + while (start < end) { + sg = (struct nix_rx_sg_s *)start; + seg_addr = &sg->seg_addr; + for (seg = 0; seg < sg->segs; seg++, seg_addr++) + pfvf->hw_ops->aura_freeptr(pfvf, qidx, + *seg_addr & ~0x07ULL); + start += sizeof(*sg); + } +} + +static bool otx2_check_rcv_errors(struct otx2_nic *pfvf, + struct nix_cqe_rx_s *cqe, int qidx) +{ + struct otx2_drv_stats *stats = &pfvf->hw.drv_stats; + struct nix_rx_parse_s *parse = &cqe->parse; + + if (netif_msg_rx_err(pfvf)) + netdev_err(pfvf->netdev, + "RQ%d: Error pkt with errlev:0x%x errcode:0x%x\n", + qidx, parse->errlev, parse->errcode); + + if (parse->errlev == NPC_ERRLVL_RE) { + switch (parse->errcode) { + case ERRCODE_FCS: + case ERRCODE_FCS_RCV: + atomic_inc(&stats->rx_fcs_errs); + break; + case ERRCODE_UNDERSIZE: + atomic_inc(&stats->rx_undersize_errs); + break; + case ERRCODE_OVERSIZE: + atomic_inc(&stats->rx_oversize_errs); + break; + case ERRCODE_OL2_LEN_MISMATCH: + atomic_inc(&stats->rx_len_errs); + break; + default: + atomic_inc(&stats->rx_other_errs); + break; + } + } else if (parse->errlev == NPC_ERRLVL_NIX) { + switch (parse->errcode) { + case ERRCODE_OL3_LEN: + case ERRCODE_OL4_LEN: + case ERRCODE_IL3_LEN: + case ERRCODE_IL4_LEN: + atomic_inc(&stats->rx_len_errs); + break; + case ERRCODE_OL4_CSUM: + case ERRCODE_IL4_CSUM: + atomic_inc(&stats->rx_csum_errs); + break; + default: + atomic_inc(&stats->rx_other_errs); + break; + } + } else { + atomic_inc(&stats->rx_other_errs); + /* For now ignore all the NPC parser errors and + * pass the packets to stack. + */ + return false; + } + + /* If RXALL is enabled pass on packets to stack. */ + if (pfvf->netdev->features & NETIF_F_RXALL) + return false; + + /* Free buffer back to pool */ + if (cqe->sg.segs) + otx2_free_rcv_seg(pfvf, cqe, qidx); + return true; +} + +static void otx2_rcv_pkt_handler(struct otx2_nic *pfvf, + struct napi_struct *napi, + struct otx2_cq_queue *cq, + struct nix_cqe_rx_s *cqe, bool *need_xdp_flush) +{ + struct nix_rx_parse_s *parse = &cqe->parse; + struct nix_rx_sg_s *sg = &cqe->sg; + struct sk_buff *skb = NULL; + void *end, *start; + u64 *seg_addr; + u16 *seg_size; + int seg; + + if (unlikely(parse->errlev || parse->errcode)) { + if (otx2_check_rcv_errors(pfvf, cqe, cq->cq_idx)) + return; + } + + if (pfvf->xdp_prog) + if (otx2_xdp_rcv_pkt_handler(pfvf, pfvf->xdp_prog, cqe, cq, need_xdp_flush)) + return; + + skb = napi_get_frags(napi); + if (unlikely(!skb)) + return; + + start = (void *)sg; + end = start + ((cqe->parse.desc_sizem1 + 1) * 16); + while (start < end) { + sg = (struct nix_rx_sg_s *)start; + seg_addr = &sg->seg_addr; + seg_size = (void *)sg; + for (seg = 0; seg < sg->segs; seg++, seg_addr++) { + if (otx2_skb_add_frag(pfvf, skb, *seg_addr, + seg_size[seg], parse, cq->cq_idx)) + cq->pool_ptrs++; + } + start += sizeof(*sg); + } + otx2_set_rxhash(pfvf, cqe, skb); + + skb_record_rx_queue(skb, cq->cq_idx); + if (pfvf->netdev->features & NETIF_F_RXCSUM) + skb->ip_summed = CHECKSUM_UNNECESSARY; + + napi_gro_frags(napi); +} + +static int otx2_rx_napi_handler(struct otx2_nic *pfvf, + struct napi_struct *napi, + struct otx2_cq_queue *cq, int budget) +{ + bool need_xdp_flush = false; + struct nix_cqe_rx_s *cqe; + int processed_cqe = 0; + + if (cq->pend_cqe >= budget) + goto process_cqe; + + if (otx2_nix_cq_op_status(pfvf, cq) || !cq->pend_cqe) + return 0; + +process_cqe: + while (likely(processed_cqe < budget) && cq->pend_cqe) { + cqe = (struct nix_cqe_rx_s *)CQE_ADDR(cq, cq->cq_head); + if (cqe->hdr.cqe_type == NIX_XQE_TYPE_INVALID || + !cqe->sg.seg_addr) { + if (!processed_cqe) + return 0; + break; + } + cq->cq_head++; + cq->cq_head &= (cq->cqe_cnt - 1); + + otx2_rcv_pkt_handler(pfvf, napi, cq, cqe, &need_xdp_flush); + + cqe->hdr.cqe_type = NIX_XQE_TYPE_INVALID; + cqe->sg.seg_addr = 0x00; + processed_cqe++; + cq->pend_cqe--; + } + if (need_xdp_flush) + xdp_do_flush(); + + /* Free CQEs to HW */ + otx2_write64(pfvf, NIX_LF_CQ_OP_DOOR, + ((u64)cq->cq_idx << 32) | processed_cqe); + + return processed_cqe; +} + +void otx2_refill_pool_ptrs(void *dev, struct otx2_cq_queue *cq) +{ + struct otx2_nic *pfvf = dev; + dma_addr_t bufptr; + + while (cq->pool_ptrs) { + if (otx2_alloc_buffer(pfvf, cq, &bufptr)) + break; + otx2_aura_freeptr(pfvf, cq->cq_idx, bufptr + OTX2_HEAD_ROOM); + cq->pool_ptrs--; + } +} + +static int otx2_tx_napi_handler(struct otx2_nic *pfvf, + struct otx2_cq_queue *cq, int budget) +{ + int tx_pkts = 0, tx_bytes = 0, qidx; + struct otx2_snd_queue *sq; + struct nix_cqe_tx_s *cqe; + int processed_cqe = 0; + + if (cq->pend_cqe >= budget) + goto process_cqe; + + if (otx2_nix_cq_op_status(pfvf, cq) || !cq->pend_cqe) + return 0; + +process_cqe: + qidx = cq->cq_idx - pfvf->hw.rx_queues; + sq = &pfvf->qset.sq[qidx]; + + while (likely(processed_cqe < budget) && cq->pend_cqe) { + cqe = (struct nix_cqe_tx_s *)otx2_get_next_cqe(cq); + if (unlikely(!cqe)) { + if (!processed_cqe) + return 0; + break; + } + + qidx = cq->cq_idx - pfvf->hw.rx_queues; + + if (cq->cq_type == CQ_XDP) + otx2_xdp_snd_pkt_handler(pfvf, sq, cqe); + else + otx2_snd_pkt_handler(pfvf, cq, &pfvf->qset.sq[qidx], + cqe, budget, &tx_pkts, &tx_bytes); + + cqe->hdr.cqe_type = NIX_XQE_TYPE_INVALID; + processed_cqe++; + cq->pend_cqe--; + + sq->cons_head++; + sq->cons_head &= (sq->sqe_cnt - 1); + } + + /* Free CQEs to HW */ + otx2_write64(pfvf, NIX_LF_CQ_OP_DOOR, + ((u64)cq->cq_idx << 32) | processed_cqe); + + if (likely(tx_pkts)) { + struct netdev_queue *txq; + + qidx = cq->cq_idx - pfvf->hw.rx_queues; + + if (qidx >= pfvf->hw.tx_queues) + qidx -= pfvf->hw.xdp_queues; + txq = netdev_get_tx_queue(pfvf->netdev, qidx); + netdev_tx_completed_queue(txq, tx_pkts, tx_bytes); + /* Check if queue was stopped earlier due to ring full */ + smp_mb(); + if (netif_tx_queue_stopped(txq) && + netif_carrier_ok(pfvf->netdev)) + netif_tx_wake_queue(txq); + } + return 0; +} + +static void otx2_adjust_adaptive_coalese(struct otx2_nic *pfvf, struct otx2_cq_poll *cq_poll) +{ + struct dim_sample dim_sample; + u64 rx_frames, rx_bytes; + u64 tx_frames, tx_bytes; + + rx_frames = OTX2_GET_RX_STATS(RX_BCAST) + OTX2_GET_RX_STATS(RX_MCAST) + + OTX2_GET_RX_STATS(RX_UCAST); + rx_bytes = OTX2_GET_RX_STATS(RX_OCTS); + tx_bytes = OTX2_GET_TX_STATS(TX_OCTS); + tx_frames = OTX2_GET_TX_STATS(TX_UCAST); + + dim_update_sample(pfvf->napi_events, + rx_frames + tx_frames, + rx_bytes + tx_bytes, + &dim_sample); + net_dim(&cq_poll->dim, dim_sample); +} + +int otx2_napi_handler(struct napi_struct *napi, int budget) +{ + struct otx2_cq_queue *rx_cq = NULL; + struct otx2_cq_poll *cq_poll; + int workdone = 0, cq_idx, i; + struct otx2_cq_queue *cq; + struct otx2_qset *qset; + struct otx2_nic *pfvf; + + cq_poll = container_of(napi, struct otx2_cq_poll, napi); + pfvf = (struct otx2_nic *)cq_poll->dev; + qset = &pfvf->qset; + + for (i = 0; i < CQS_PER_CINT; i++) { + cq_idx = cq_poll->cq_ids[i]; + if (unlikely(cq_idx == CINT_INVALID_CQ)) + continue; + cq = &qset->cq[cq_idx]; + if (cq->cq_type == CQ_RX) { + rx_cq = cq; + workdone += otx2_rx_napi_handler(pfvf, napi, + cq, budget); + } else { + workdone += otx2_tx_napi_handler(pfvf, cq, budget); + } + } + + if (rx_cq && rx_cq->pool_ptrs) + pfvf->hw_ops->refill_pool_ptrs(pfvf, rx_cq); + /* Clear the IRQ */ + otx2_write64(pfvf, NIX_LF_CINTX_INT(cq_poll->cint_idx), BIT_ULL(0)); + + if (workdone < budget && napi_complete_done(napi, workdone)) { + /* If interface is going down, don't re-enable IRQ */ + if (pfvf->flags & OTX2_FLAG_INTF_DOWN) + return workdone; + + /* Adjust irq coalese using net_dim */ + if (pfvf->flags & OTX2_FLAG_ADPTV_INT_COAL_ENABLED) + otx2_adjust_adaptive_coalese(pfvf, cq_poll); + + /* Re-enable interrupts */ + otx2_write64(pfvf, NIX_LF_CINTX_ENA_W1S(cq_poll->cint_idx), + BIT_ULL(0)); + } + return workdone; +} + +void otx2_sqe_flush(void *dev, struct otx2_snd_queue *sq, + int size, int qidx) +{ + u64 status; + + /* Packet data stores should finish before SQE is flushed to HW */ + dma_wmb(); + + do { + memcpy(sq->lmt_addr, sq->sqe_base, size); + status = otx2_lmt_flush(sq->io_addr); + } while (status == 0); + + sq->head++; + sq->head &= (sq->sqe_cnt - 1); +} + +#define MAX_SEGS_PER_SG 3 +/* Add SQE scatter/gather subdescriptor structure */ +static bool otx2_sqe_add_sg(struct otx2_nic *pfvf, struct otx2_snd_queue *sq, + struct sk_buff *skb, int num_segs, int *offset) +{ + struct nix_sqe_sg_s *sg = NULL; + u64 dma_addr, *iova = NULL; + u16 *sg_lens = NULL; + int seg, len; + + sq->sg[sq->head].num_segs = 0; + + for (seg = 0; seg < num_segs; seg++) { + if ((seg % MAX_SEGS_PER_SG) == 0) { + sg = (struct nix_sqe_sg_s *)(sq->sqe_base + *offset); + sg->ld_type = NIX_SEND_LDTYPE_LDD; + sg->subdc = NIX_SUBDC_SG; + sg->segs = 0; + sg_lens = (void *)sg; + iova = (void *)sg + sizeof(*sg); + /* Next subdc always starts at a 16byte boundary. + * So if sg->segs is whether 2 or 3, offset += 16bytes. + */ + if ((num_segs - seg) >= (MAX_SEGS_PER_SG - 1)) + *offset += sizeof(*sg) + (3 * sizeof(u64)); + else + *offset += sizeof(*sg) + sizeof(u64); + } + dma_addr = otx2_dma_map_skb_frag(pfvf, skb, seg, &len); + if (dma_mapping_error(pfvf->dev, dma_addr)) + return false; + + sg_lens[frag_num(seg % MAX_SEGS_PER_SG)] = len; + sg->segs++; + *iova++ = dma_addr; + + /* Save DMA mapping info for later unmapping */ + sq->sg[sq->head].dma_addr[seg] = dma_addr; + sq->sg[sq->head].size[seg] = len; + sq->sg[sq->head].num_segs++; + } + + sq->sg[sq->head].skb = (u64)skb; + return true; +} + +/* Add SQE extended header subdescriptor */ +static void otx2_sqe_add_ext(struct otx2_nic *pfvf, struct otx2_snd_queue *sq, + struct sk_buff *skb, int *offset) +{ + struct nix_sqe_ext_s *ext; + + ext = (struct nix_sqe_ext_s *)(sq->sqe_base + *offset); + ext->subdc = NIX_SUBDC_EXT; + if (skb_shinfo(skb)->gso_size) { + ext->lso = 1; + ext->lso_sb = skb_tcp_all_headers(skb); + ext->lso_mps = skb_shinfo(skb)->gso_size; + + /* Only TSOv4 and TSOv6 GSO offloads are supported */ + if (skb_shinfo(skb)->gso_type & SKB_GSO_TCPV4) { + ext->lso_format = pfvf->hw.lso_tsov4_idx; + + /* HW adds payload size to 'ip_hdr->tot_len' while + * sending TSO segment, hence set payload length + * in IP header of the packet to just header length. + */ + ip_hdr(skb)->tot_len = + htons(ext->lso_sb - skb_network_offset(skb)); + } else if (skb_shinfo(skb)->gso_type & SKB_GSO_TCPV6) { + ext->lso_format = pfvf->hw.lso_tsov6_idx; + ipv6_hdr(skb)->payload_len = htons(tcp_hdrlen(skb)); + } else if (skb_shinfo(skb)->gso_type & SKB_GSO_UDP_L4) { + __be16 l3_proto = vlan_get_protocol(skb); + struct udphdr *udph = udp_hdr(skb); + u16 iplen; + + ext->lso_sb = skb_transport_offset(skb) + + sizeof(struct udphdr); + + /* HW adds payload size to length fields in IP and + * UDP headers while segmentation, hence adjust the + * lengths to just header sizes. + */ + iplen = htons(ext->lso_sb - skb_network_offset(skb)); + if (l3_proto == htons(ETH_P_IP)) { + ip_hdr(skb)->tot_len = iplen; + ext->lso_format = pfvf->hw.lso_udpv4_idx; + } else { + ipv6_hdr(skb)->payload_len = iplen; + ext->lso_format = pfvf->hw.lso_udpv6_idx; + } + + udph->len = htons(sizeof(struct udphdr)); + } + } else if (skb_shinfo(skb)->tx_flags & SKBTX_HW_TSTAMP) { + ext->tstmp = 1; + } + +#define OTX2_VLAN_PTR_OFFSET (ETH_HLEN - ETH_TLEN) + if (skb_vlan_tag_present(skb)) { + if (skb->vlan_proto == htons(ETH_P_8021Q)) { + ext->vlan1_ins_ena = 1; + ext->vlan1_ins_ptr = OTX2_VLAN_PTR_OFFSET; + ext->vlan1_ins_tci = skb_vlan_tag_get(skb); + } else if (skb->vlan_proto == htons(ETH_P_8021AD)) { + ext->vlan0_ins_ena = 1; + ext->vlan0_ins_ptr = OTX2_VLAN_PTR_OFFSET; + ext->vlan0_ins_tci = skb_vlan_tag_get(skb); + } + } + + *offset += sizeof(*ext); +} + +static void otx2_sqe_add_mem(struct otx2_snd_queue *sq, int *offset, + int alg, u64 iova, int ptp_offset, + u64 base_ns, bool udp_csum_crt) +{ + struct nix_sqe_mem_s *mem; + + mem = (struct nix_sqe_mem_s *)(sq->sqe_base + *offset); + mem->subdc = NIX_SUBDC_MEM; + mem->alg = alg; + mem->wmem = 1; /* wait for the memory operation */ + mem->addr = iova; + + if (ptp_offset) { + mem->start_offset = ptp_offset; + mem->udp_csum_crt = !!udp_csum_crt; + mem->base_ns = base_ns; + mem->step_type = 1; + } + + *offset += sizeof(*mem); +} + +/* Add SQE header subdescriptor structure */ +static void otx2_sqe_add_hdr(struct otx2_nic *pfvf, struct otx2_snd_queue *sq, + struct nix_sqe_hdr_s *sqe_hdr, + struct sk_buff *skb, u16 qidx) +{ + int proto = 0; + + /* Check if SQE was framed before, if yes then no need to + * set these constants again and again. + */ + if (!sqe_hdr->total) { + /* Don't free Tx buffers to Aura */ + sqe_hdr->df = 1; + sqe_hdr->aura = sq->aura_id; + /* Post a CQE Tx after pkt transmission */ + sqe_hdr->pnc = 1; + sqe_hdr->sq = (qidx >= pfvf->hw.tx_queues) ? + qidx + pfvf->hw.xdp_queues : qidx; + } + sqe_hdr->total = skb->len; + /* Set SQE identifier which will be used later for freeing SKB */ + sqe_hdr->sqe_id = sq->head; + + /* Offload TCP/UDP checksum to HW */ + if (skb->ip_summed == CHECKSUM_PARTIAL) { + sqe_hdr->ol3ptr = skb_network_offset(skb); + sqe_hdr->ol4ptr = skb_transport_offset(skb); + /* get vlan protocol Ethertype */ + if (eth_type_vlan(skb->protocol)) + skb->protocol = vlan_get_protocol(skb); + + if (skb->protocol == htons(ETH_P_IP)) { + proto = ip_hdr(skb)->protocol; + /* In case of TSO, HW needs this to be explicitly set. + * So set this always, instead of adding a check. + */ + sqe_hdr->ol3type = NIX_SENDL3TYPE_IP4_CKSUM; + } else if (skb->protocol == htons(ETH_P_IPV6)) { + proto = ipv6_hdr(skb)->nexthdr; + sqe_hdr->ol3type = NIX_SENDL3TYPE_IP6; + } + + if (proto == IPPROTO_TCP) + sqe_hdr->ol4type = NIX_SENDL4TYPE_TCP_CKSUM; + else if (proto == IPPROTO_UDP) + sqe_hdr->ol4type = NIX_SENDL4TYPE_UDP_CKSUM; + } +} + +static int otx2_dma_map_tso_skb(struct otx2_nic *pfvf, + struct otx2_snd_queue *sq, + struct sk_buff *skb, int sqe, int hdr_len) +{ + int num_segs = skb_shinfo(skb)->nr_frags + 1; + struct sg_list *sg = &sq->sg[sqe]; + u64 dma_addr; + int seg, len; + + sg->num_segs = 0; + + /* Get payload length at skb->data */ + len = skb_headlen(skb) - hdr_len; + + for (seg = 0; seg < num_segs; seg++) { + /* Skip skb->data, if there is no payload */ + if (!seg && !len) + continue; + dma_addr = otx2_dma_map_skb_frag(pfvf, skb, seg, &len); + if (dma_mapping_error(pfvf->dev, dma_addr)) + goto unmap; + + /* Save DMA mapping info for later unmapping */ + sg->dma_addr[sg->num_segs] = dma_addr; + sg->size[sg->num_segs] = len; + sg->num_segs++; + } + return 0; +unmap: + otx2_dma_unmap_skb_frags(pfvf, sg); + return -EINVAL; +} + +static u64 otx2_tso_frag_dma_addr(struct otx2_snd_queue *sq, + struct sk_buff *skb, int seg, + u64 seg_addr, int hdr_len, int sqe) +{ + struct sg_list *sg = &sq->sg[sqe]; + const skb_frag_t *frag; + int offset; + + if (seg < 0) + return sg->dma_addr[0] + (seg_addr - (u64)skb->data); + + frag = &skb_shinfo(skb)->frags[seg]; + offset = seg_addr - (u64)skb_frag_address(frag); + if (skb_headlen(skb) - hdr_len) + seg++; + return sg->dma_addr[seg] + offset; +} + +static void otx2_sqe_tso_add_sg(struct otx2_snd_queue *sq, + struct sg_list *list, int *offset) +{ + struct nix_sqe_sg_s *sg = NULL; + u16 *sg_lens = NULL; + u64 *iova = NULL; + int seg; + + /* Add SG descriptors with buffer addresses */ + for (seg = 0; seg < list->num_segs; seg++) { + if ((seg % MAX_SEGS_PER_SG) == 0) { + sg = (struct nix_sqe_sg_s *)(sq->sqe_base + *offset); + sg->ld_type = NIX_SEND_LDTYPE_LDD; + sg->subdc = NIX_SUBDC_SG; + sg->segs = 0; + sg_lens = (void *)sg; + iova = (void *)sg + sizeof(*sg); + /* Next subdc always starts at a 16byte boundary. + * So if sg->segs is whether 2 or 3, offset += 16bytes. + */ + if ((list->num_segs - seg) >= (MAX_SEGS_PER_SG - 1)) + *offset += sizeof(*sg) + (3 * sizeof(u64)); + else + *offset += sizeof(*sg) + sizeof(u64); + } + sg_lens[frag_num(seg % MAX_SEGS_PER_SG)] = list->size[seg]; + *iova++ = list->dma_addr[seg]; + sg->segs++; + } +} + +static void otx2_sq_append_tso(struct otx2_nic *pfvf, struct otx2_snd_queue *sq, + struct sk_buff *skb, u16 qidx) +{ + struct netdev_queue *txq = netdev_get_tx_queue(pfvf->netdev, qidx); + int hdr_len, tcp_data, seg_len, pkt_len, offset; + struct nix_sqe_hdr_s *sqe_hdr; + int first_sqe = sq->head; + struct sg_list list; + struct tso_t tso; + + hdr_len = tso_start(skb, &tso); + + /* Map SKB's fragments to DMA. + * It's done here to avoid mapping for every TSO segment's packet. + */ + if (otx2_dma_map_tso_skb(pfvf, sq, skb, first_sqe, hdr_len)) { + dev_kfree_skb_any(skb); + return; + } + + netdev_tx_sent_queue(txq, skb->len); + + tcp_data = skb->len - hdr_len; + while (tcp_data > 0) { + char *hdr; + + seg_len = min_t(int, skb_shinfo(skb)->gso_size, tcp_data); + tcp_data -= seg_len; + + /* Set SQE's SEND_HDR */ + memset(sq->sqe_base, 0, sq->sqe_size); + sqe_hdr = (struct nix_sqe_hdr_s *)(sq->sqe_base); + otx2_sqe_add_hdr(pfvf, sq, sqe_hdr, skb, qidx); + offset = sizeof(*sqe_hdr); + + /* Add TSO segment's pkt header */ + hdr = sq->tso_hdrs->base + (sq->head * TSO_HEADER_SIZE); + tso_build_hdr(skb, hdr, &tso, seg_len, tcp_data == 0); + list.dma_addr[0] = + sq->tso_hdrs->iova + (sq->head * TSO_HEADER_SIZE); + list.size[0] = hdr_len; + list.num_segs = 1; + + /* Add TSO segment's payload data fragments */ + pkt_len = hdr_len; + while (seg_len > 0) { + int size; + + size = min_t(int, tso.size, seg_len); + + list.size[list.num_segs] = size; + list.dma_addr[list.num_segs] = + otx2_tso_frag_dma_addr(sq, skb, + tso.next_frag_idx - 1, + (u64)tso.data, hdr_len, + first_sqe); + list.num_segs++; + pkt_len += size; + seg_len -= size; + tso_build_data(skb, &tso, size); + } + sqe_hdr->total = pkt_len; + otx2_sqe_tso_add_sg(sq, &list, &offset); + + /* DMA mappings and skb needs to be freed only after last + * TSO segment is transmitted out. So set 'PNC' only for + * last segment. Also point last segment's sqe_id to first + * segment's SQE index where skb address and DMA mappings + * are saved. + */ + if (!tcp_data) { + sqe_hdr->pnc = 1; + sqe_hdr->sqe_id = first_sqe; + sq->sg[first_sqe].skb = (u64)skb; + } else { + sqe_hdr->pnc = 0; + } + + sqe_hdr->sizem1 = (offset / 16) - 1; + + /* Flush SQE to HW */ + pfvf->hw_ops->sqe_flush(pfvf, sq, offset, qidx); + } +} + +static bool is_hw_tso_supported(struct otx2_nic *pfvf, + struct sk_buff *skb) +{ + int payload_len, last_seg_size; + + if (test_bit(HW_TSO, &pfvf->hw.cap_flag)) + return true; + + /* On 96xx A0, HW TSO not supported */ + if (!is_96xx_B0(pfvf->pdev)) + return false; + + /* HW has an issue due to which when the payload of the last LSO + * segment is shorter than 16 bytes, some header fields may not + * be correctly modified, hence don't offload such TSO segments. + */ + + payload_len = skb->len - skb_tcp_all_headers(skb); + last_seg_size = payload_len % skb_shinfo(skb)->gso_size; + if (last_seg_size && last_seg_size < 16) + return false; + + return true; +} + +static int otx2_get_sqe_count(struct otx2_nic *pfvf, struct sk_buff *skb) +{ + if (!skb_shinfo(skb)->gso_size) + return 1; + + /* HW TSO */ + if (is_hw_tso_supported(pfvf, skb)) + return 1; + + /* SW TSO */ + return skb_shinfo(skb)->gso_segs; +} + +static bool otx2_validate_network_transport(struct sk_buff *skb) +{ + if ((ip_hdr(skb)->protocol == IPPROTO_UDP) || + (ipv6_hdr(skb)->nexthdr == IPPROTO_UDP)) { + struct udphdr *udph = udp_hdr(skb); + + if (udph->source == htons(PTP_PORT) && + udph->dest == htons(PTP_PORT)) + return true; + } + + return false; +} + +static bool otx2_ptp_is_sync(struct sk_buff *skb, int *offset, bool *udp_csum_crt) +{ + struct ethhdr *eth = (struct ethhdr *)(skb->data); + u16 nix_offload_hlen = 0, inner_vhlen = 0; + bool udp_hdr_present = false, is_sync; + u8 *data = skb->data, *msgtype; + __be16 proto = eth->h_proto; + int network_depth = 0; + + /* NIX is programmed to offload outer VLAN header + * in case of single vlan protocol field holds Network header ETH_IP/V6 + * in case of stacked vlan protocol field holds Inner vlan (8100) + */ + if (skb->dev->features & NETIF_F_HW_VLAN_CTAG_TX && + skb->dev->features & NETIF_F_HW_VLAN_STAG_TX) { + if (skb->vlan_proto == htons(ETH_P_8021AD)) { + /* Get vlan protocol */ + proto = __vlan_get_protocol(skb, eth->h_proto, NULL); + /* SKB APIs like skb_transport_offset does not include + * offloaded vlan header length. Need to explicitly add + * the length + */ + nix_offload_hlen = VLAN_HLEN; + inner_vhlen = VLAN_HLEN; + } else if (skb->vlan_proto == htons(ETH_P_8021Q)) { + nix_offload_hlen = VLAN_HLEN; + } + } else if (eth_type_vlan(eth->h_proto)) { + proto = __vlan_get_protocol(skb, eth->h_proto, &network_depth); + } + + switch (ntohs(proto)) { + case ETH_P_1588: + if (network_depth) + *offset = network_depth; + else + *offset = ETH_HLEN + nix_offload_hlen + + inner_vhlen; + break; + case ETH_P_IP: + case ETH_P_IPV6: + if (!otx2_validate_network_transport(skb)) + return false; + + *offset = nix_offload_hlen + skb_transport_offset(skb) + + sizeof(struct udphdr); + udp_hdr_present = true; + + } + + msgtype = data + *offset; + /* Check PTP messageId is SYNC or not */ + is_sync = !(*msgtype & 0xf); + if (is_sync) + *udp_csum_crt = udp_hdr_present; + else + *offset = 0; + + return is_sync; +} + +static void otx2_set_txtstamp(struct otx2_nic *pfvf, struct sk_buff *skb, + struct otx2_snd_queue *sq, int *offset) +{ + struct ethhdr *eth = (struct ethhdr *)(skb->data); + struct ptpv2_tstamp *origin_tstamp; + bool udp_csum_crt = false; + unsigned int udphoff; + struct timespec64 ts; + int ptp_offset = 0; + __wsum skb_csum; + u64 iova; + + if (unlikely(!skb_shinfo(skb)->gso_size && + (skb_shinfo(skb)->tx_flags & SKBTX_HW_TSTAMP))) { + if (unlikely(pfvf->flags & OTX2_FLAG_PTP_ONESTEP_SYNC && + otx2_ptp_is_sync(skb, &ptp_offset, &udp_csum_crt))) { + origin_tstamp = (struct ptpv2_tstamp *) + ((u8 *)skb->data + ptp_offset + + PTP_SYNC_SEC_OFFSET); + ts = ns_to_timespec64(pfvf->ptp->tstamp); + origin_tstamp->seconds_msb = htons((ts.tv_sec >> 32) & 0xffff); + origin_tstamp->seconds_lsb = htonl(ts.tv_sec & 0xffffffff); + origin_tstamp->nanoseconds = htonl(ts.tv_nsec); + /* Point to correction field in PTP packet */ + ptp_offset += 8; + + /* When user disables hw checksum, stack calculates the csum, + * but it does not cover ptp timestamp which is added later. + * Recalculate the checksum manually considering the timestamp. + */ + if (udp_csum_crt) { + struct udphdr *uh = udp_hdr(skb); + + if (skb->ip_summed != CHECKSUM_PARTIAL && uh->check != 0) { + udphoff = skb_transport_offset(skb); + uh->check = 0; + skb_csum = skb_checksum(skb, udphoff, skb->len - udphoff, + 0); + if (ntohs(eth->h_proto) == ETH_P_IPV6) + uh->check = csum_ipv6_magic(&ipv6_hdr(skb)->saddr, + &ipv6_hdr(skb)->daddr, + skb->len - udphoff, + ipv6_hdr(skb)->nexthdr, + skb_csum); + else + uh->check = csum_tcpudp_magic(ip_hdr(skb)->saddr, + ip_hdr(skb)->daddr, + skb->len - udphoff, + IPPROTO_UDP, + skb_csum); + } + } + } else { + skb_shinfo(skb)->tx_flags |= SKBTX_IN_PROGRESS; + } + iova = sq->timestamps->iova + (sq->head * sizeof(u64)); + otx2_sqe_add_mem(sq, offset, NIX_SENDMEMALG_E_SETTSTMP, iova, + ptp_offset, pfvf->ptp->base_ns, udp_csum_crt); + } else { + skb_tx_timestamp(skb); + } +} + +bool otx2_sq_append_skb(struct net_device *netdev, struct otx2_snd_queue *sq, + struct sk_buff *skb, u16 qidx) +{ + struct netdev_queue *txq = netdev_get_tx_queue(netdev, qidx); + struct otx2_nic *pfvf = netdev_priv(netdev); + int offset, num_segs, free_desc; + struct nix_sqe_hdr_s *sqe_hdr; + + /* Check if there is enough room between producer + * and consumer index. + */ + free_desc = (sq->cons_head - sq->head - 1 + sq->sqe_cnt) & (sq->sqe_cnt - 1); + if (free_desc < sq->sqe_thresh) + return false; + + if (free_desc < otx2_get_sqe_count(pfvf, skb)) + return false; + + num_segs = skb_shinfo(skb)->nr_frags + 1; + + /* If SKB doesn't fit in a single SQE, linearize it. + * TODO: Consider adding JUMP descriptor instead. + */ + if (unlikely(num_segs > OTX2_MAX_FRAGS_IN_SQE)) { + if (__skb_linearize(skb)) { + dev_kfree_skb_any(skb); + return true; + } + num_segs = skb_shinfo(skb)->nr_frags + 1; + } + + if (skb_shinfo(skb)->gso_size && !is_hw_tso_supported(pfvf, skb)) { + /* Insert vlan tag before giving pkt to tso */ + if (skb_vlan_tag_present(skb)) + skb = __vlan_hwaccel_push_inside(skb); + otx2_sq_append_tso(pfvf, sq, skb, qidx); + return true; + } + + /* Set SQE's SEND_HDR. + * Do not clear the first 64bit as it contains constant info. + */ + memset(sq->sqe_base + 8, 0, sq->sqe_size - 8); + sqe_hdr = (struct nix_sqe_hdr_s *)(sq->sqe_base); + otx2_sqe_add_hdr(pfvf, sq, sqe_hdr, skb, qidx); + offset = sizeof(*sqe_hdr); + + /* Add extended header if needed */ + otx2_sqe_add_ext(pfvf, sq, skb, &offset); + + /* Add SG subdesc with data frags */ + if (!otx2_sqe_add_sg(pfvf, sq, skb, num_segs, &offset)) { + otx2_dma_unmap_skb_frags(pfvf, &sq->sg[sq->head]); + return false; + } + + otx2_set_txtstamp(pfvf, skb, sq, &offset); + + sqe_hdr->sizem1 = (offset / 16) - 1; + + netdev_tx_sent_queue(txq, skb->len); + + /* Flush SQE to HW */ + pfvf->hw_ops->sqe_flush(pfvf, sq, offset, qidx); + + return true; +} +EXPORT_SYMBOL(otx2_sq_append_skb); + +void otx2_cleanup_rx_cqes(struct otx2_nic *pfvf, struct otx2_cq_queue *cq) +{ + struct nix_cqe_rx_s *cqe; + int processed_cqe = 0; + u64 iova, pa; + + if (pfvf->xdp_prog) + xdp_rxq_info_unreg(&cq->xdp_rxq); + + if (otx2_nix_cq_op_status(pfvf, cq) || !cq->pend_cqe) + return; + + while (cq->pend_cqe) { + cqe = (struct nix_cqe_rx_s *)otx2_get_next_cqe(cq); + processed_cqe++; + cq->pend_cqe--; + + if (!cqe) + continue; + if (cqe->sg.segs > 1) { + otx2_free_rcv_seg(pfvf, cqe, cq->cq_idx); + continue; + } + iova = cqe->sg.seg_addr - OTX2_HEAD_ROOM; + pa = otx2_iova_to_phys(pfvf->iommu_domain, iova); + otx2_dma_unmap_page(pfvf, iova, pfvf->rbsize, DMA_FROM_DEVICE); + put_page(virt_to_page(phys_to_virt(pa))); + } + + /* Free CQEs to HW */ + otx2_write64(pfvf, NIX_LF_CQ_OP_DOOR, + ((u64)cq->cq_idx << 32) | processed_cqe); +} + +void otx2_cleanup_tx_cqes(struct otx2_nic *pfvf, struct otx2_cq_queue *cq) +{ + int tx_pkts = 0, tx_bytes = 0; + struct sk_buff *skb = NULL; + struct otx2_snd_queue *sq; + struct nix_cqe_tx_s *cqe; + struct netdev_queue *txq; + int processed_cqe = 0; + struct sg_list *sg; + int qidx; + + qidx = cq->cq_idx - pfvf->hw.rx_queues; + sq = &pfvf->qset.sq[qidx]; + + if (otx2_nix_cq_op_status(pfvf, cq) || !cq->pend_cqe) + return; + + while (cq->pend_cqe) { + cqe = (struct nix_cqe_tx_s *)otx2_get_next_cqe(cq); + processed_cqe++; + cq->pend_cqe--; + + if (!cqe) + continue; + sg = &sq->sg[cqe->comp.sqe_id]; + skb = (struct sk_buff *)sg->skb; + if (skb) { + tx_bytes += skb->len; + tx_pkts++; + otx2_dma_unmap_skb_frags(pfvf, sg); + dev_kfree_skb_any(skb); + sg->skb = (u64)NULL; + } + } + + if (likely(tx_pkts)) { + if (qidx >= pfvf->hw.tx_queues) + qidx -= pfvf->hw.xdp_queues; + txq = netdev_get_tx_queue(pfvf->netdev, qidx); + netdev_tx_completed_queue(txq, tx_pkts, tx_bytes); + } + /* Free CQEs to HW */ + otx2_write64(pfvf, NIX_LF_CQ_OP_DOOR, + ((u64)cq->cq_idx << 32) | processed_cqe); +} + +int otx2_rxtx_enable(struct otx2_nic *pfvf, bool enable) +{ + struct msg_req *msg; + int err; + + mutex_lock(&pfvf->mbox.lock); + if (enable) + msg = otx2_mbox_alloc_msg_nix_lf_start_rx(&pfvf->mbox); + else + msg = otx2_mbox_alloc_msg_nix_lf_stop_rx(&pfvf->mbox); + + if (!msg) { + mutex_unlock(&pfvf->mbox.lock); + return -ENOMEM; + } + + err = otx2_sync_mbox_msg(&pfvf->mbox); + mutex_unlock(&pfvf->mbox.lock); + return err; +} + +void otx2_free_pending_sqe(struct otx2_nic *pfvf) +{ + int tx_pkts = 0, tx_bytes = 0; + struct sk_buff *skb = NULL; + struct otx2_snd_queue *sq; + struct netdev_queue *txq; + struct sg_list *sg; + int sq_idx, sqe; + + for (sq_idx = 0; sq_idx < pfvf->hw.tx_queues; sq_idx++) { + sq = &pfvf->qset.sq[sq_idx]; + for (sqe = 0; sqe < sq->sqe_cnt; sqe++) { + sg = &sq->sg[sqe]; + skb = (struct sk_buff *)sg->skb; + if (skb) { + tx_bytes += skb->len; + tx_pkts++; + otx2_dma_unmap_skb_frags(pfvf, sg); + dev_kfree_skb_any(skb); + sg->skb = (u64)NULL; + } + } + + if (!tx_pkts) + continue; + txq = netdev_get_tx_queue(pfvf->netdev, sq_idx); + netdev_tx_completed_queue(txq, tx_pkts, tx_bytes); + tx_pkts = 0; + tx_bytes = 0; + } +} + +static void otx2_xdp_sqe_add_sg(struct otx2_snd_queue *sq, u64 dma_addr, + int len, int *offset) +{ + struct nix_sqe_sg_s *sg = NULL; + u64 *iova = NULL; + + sg = (struct nix_sqe_sg_s *)(sq->sqe_base + *offset); + sg->ld_type = NIX_SEND_LDTYPE_LDD; + sg->subdc = NIX_SUBDC_SG; + sg->segs = 1; + sg->seg1_size = len; + iova = (void *)sg + sizeof(*sg); + *iova = dma_addr; + *offset += sizeof(*sg) + sizeof(u64); + + sq->sg[sq->head].dma_addr[0] = dma_addr; + sq->sg[sq->head].size[0] = len; + sq->sg[sq->head].num_segs = 1; +} + +bool otx2_xdp_sq_append_pkt(struct otx2_nic *pfvf, u64 iova, int len, u16 qidx) +{ + struct nix_sqe_hdr_s *sqe_hdr; + struct otx2_snd_queue *sq; + int offset, free_sqe; + + sq = &pfvf->qset.sq[qidx]; + free_sqe = (sq->num_sqbs - *sq->aura_fc_addr) * sq->sqe_per_sqb; + if (free_sqe < sq->sqe_thresh) + return false; + + memset(sq->sqe_base + 8, 0, sq->sqe_size - 8); + + sqe_hdr = (struct nix_sqe_hdr_s *)(sq->sqe_base); + + if (!sqe_hdr->total) { + sqe_hdr->aura = sq->aura_id; + sqe_hdr->df = 1; + sqe_hdr->sq = qidx; + sqe_hdr->pnc = 1; + } + sqe_hdr->total = len; + sqe_hdr->sqe_id = sq->head; + + offset = sizeof(*sqe_hdr); + + otx2_xdp_sqe_add_sg(sq, iova, len, &offset); + sqe_hdr->sizem1 = (offset / 16) - 1; + pfvf->hw_ops->sqe_flush(pfvf, sq, offset, qidx); + + return true; +} + +static bool otx2_xdp_rcv_pkt_handler(struct otx2_nic *pfvf, + struct bpf_prog *prog, + struct nix_cqe_rx_s *cqe, + struct otx2_cq_queue *cq, + bool *need_xdp_flush) +{ + unsigned char *hard_start, *data; + int qidx = cq->cq_idx; + struct xdp_buff xdp; + struct page *page; + u64 iova, pa; + u32 act; + int err; + + iova = cqe->sg.seg_addr - OTX2_HEAD_ROOM; + pa = otx2_iova_to_phys(pfvf->iommu_domain, iova); + page = virt_to_page(phys_to_virt(pa)); + + xdp_init_buff(&xdp, pfvf->rbsize, &cq->xdp_rxq); + + data = (unsigned char *)phys_to_virt(pa); + hard_start = page_address(page); + xdp_prepare_buff(&xdp, hard_start, data - hard_start, + cqe->sg.seg_size, false); + + act = bpf_prog_run_xdp(prog, &xdp); + + switch (act) { + case XDP_PASS: + break; + case XDP_TX: + qidx += pfvf->hw.tx_queues; + cq->pool_ptrs++; + return otx2_xdp_sq_append_pkt(pfvf, iova, + cqe->sg.seg_size, qidx); + case XDP_REDIRECT: + cq->pool_ptrs++; + err = xdp_do_redirect(pfvf->netdev, &xdp, prog); + + otx2_dma_unmap_page(pfvf, iova, pfvf->rbsize, + DMA_FROM_DEVICE); + if (!err) { + *need_xdp_flush = true; + return true; + } + put_page(page); + break; + default: + bpf_warn_invalid_xdp_action(pfvf->netdev, prog, act); + break; + case XDP_ABORTED: + trace_xdp_exception(pfvf->netdev, prog, act); + break; + case XDP_DROP: + otx2_dma_unmap_page(pfvf, iova, pfvf->rbsize, + DMA_FROM_DEVICE); + put_page(page); + cq->pool_ptrs++; + return true; + } + return false; +} diff --git a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_txrx.h b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_txrx.h new file mode 100644 index 000000000..7ab6db9a9 --- /dev/null +++ b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_txrx.h @@ -0,0 +1,172 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* Marvell RVU Ethernet driver + * + * Copyright (C) 2020 Marvell. + * + */ + +#ifndef OTX2_TXRX_H +#define OTX2_TXRX_H + +#include <linux/etherdevice.h> +#include <linux/iommu.h> +#include <linux/if_vlan.h> +#include <net/xdp.h> + +#define LBK_CHAN_BASE 0x000 +#define SDP_CHAN_BASE 0x700 +#define CGX_CHAN_BASE 0x800 + +#define OTX2_DATA_ALIGN(X) ALIGN(X, OTX2_ALIGN) +#define OTX2_HEAD_ROOM OTX2_ALIGN + +#define OTX2_ETH_HLEN (VLAN_ETH_HLEN + VLAN_HLEN) +#define OTX2_MIN_MTU 60 + +#define OTX2_MAX_GSO_SEGS 255 +#define OTX2_MAX_FRAGS_IN_SQE 9 + +#define MAX_XDP_MTU (1530 - OTX2_ETH_HLEN) + +/* Rx buffer size should be in multiples of 128bytes */ +#define RCV_FRAG_LEN1(x) \ + ((OTX2_HEAD_ROOM + OTX2_DATA_ALIGN(x)) + \ + OTX2_DATA_ALIGN(sizeof(struct skb_shared_info))) + +/* Prefer 2048 byte buffers for better last level cache + * utilization or data distribution across regions. + */ +#define RCV_FRAG_LEN(x) \ + ((RCV_FRAG_LEN1(x) < 2048) ? 2048 : RCV_FRAG_LEN1(x)) + +#define DMA_BUFFER_LEN(x) ((x) - OTX2_HEAD_ROOM) + +/* IRQ triggered when NIX_LF_CINTX_CNT[ECOUNT] + * is equal to this value. + */ +#define CQ_CQE_THRESH_DEFAULT 10 + +/* IRQ triggered when NIX_LF_CINTX_CNT[ECOUNT] + * is nonzero and this much time elapses after that. + */ +#define CQ_TIMER_THRESH_DEFAULT 1 /* 1 usec */ +#define CQ_TIMER_THRESH_MAX 25 /* 25 usec */ + +/* Min number of CQs (of the ones mapped to this CINT) + * with valid CQEs. + */ +#define CQ_QCOUNT_DEFAULT 1 + +#define CQ_OP_STAT_OP_ERR 63 +#define CQ_OP_STAT_CQ_ERR 46 + +struct queue_stats { + u64 bytes; + u64 pkts; +}; + +struct otx2_rcv_queue { + struct queue_stats stats; +}; + +struct sg_list { + u16 num_segs; + u64 skb; + u64 size[OTX2_MAX_FRAGS_IN_SQE]; + u64 dma_addr[OTX2_MAX_FRAGS_IN_SQE]; +}; + +struct otx2_snd_queue { + u8 aura_id; + u16 head; + u16 cons_head; + u16 sqe_size; + u32 sqe_cnt; + u16 num_sqbs; + u16 sqe_thresh; + u8 sqe_per_sqb; + u64 io_addr; + u64 *aura_fc_addr; + u64 *lmt_addr; + void *sqe_base; + struct qmem *sqe; + struct qmem *tso_hdrs; + struct sg_list *sg; + struct qmem *timestamps; + struct queue_stats stats; + u16 sqb_count; + u64 *sqb_ptrs; +} ____cacheline_aligned_in_smp; + +enum cq_type { + CQ_RX, + CQ_TX, + CQ_XDP, + CQ_QOS, + CQS_PER_CINT = 4, /* RQ + SQ + XDP + QOS_SQ */ +}; + +struct otx2_cq_poll { + void *dev; +#define CINT_INVALID_CQ 255 + u8 cint_idx; + u8 cq_ids[CQS_PER_CINT]; + struct dim dim; + struct napi_struct napi; +}; + +struct otx2_pool { + struct qmem *stack; + struct qmem *fc_addr; + u16 rbsize; +}; + +struct otx2_cq_queue { + u8 cq_idx; + u8 cq_type; + u8 cint_idx; /* CQ interrupt id */ + u8 refill_task_sched; + u16 cqe_size; + u16 pool_ptrs; + u32 cqe_cnt; + u32 cq_head; + u32 cq_tail; + u32 pend_cqe; + void *cqe_base; + struct qmem *cqe; + struct otx2_pool *rbpool; + struct xdp_rxq_info xdp_rxq; +} ____cacheline_aligned_in_smp; + +struct otx2_qset { + u32 rqe_cnt; + u32 sqe_cnt; /* Keep these two at top */ +#define OTX2_MAX_CQ_CNT 64 + u16 cq_cnt; + u16 xqe_size; + struct otx2_pool *pool; + struct otx2_cq_poll *napi; + struct otx2_cq_queue *cq; + struct otx2_snd_queue *sq; + struct otx2_rcv_queue *rq; +}; + +/* Translate IOVA to physical address */ +static inline u64 otx2_iova_to_phys(void *iommu_domain, dma_addr_t dma_addr) +{ + /* Translation is installed only when IOMMU is present */ + if (likely(iommu_domain)) + return iommu_iova_to_phys(iommu_domain, dma_addr); + return dma_addr; +} + +int otx2_napi_handler(struct napi_struct *napi, int budget); +bool otx2_sq_append_skb(struct net_device *netdev, struct otx2_snd_queue *sq, + struct sk_buff *skb, u16 qidx); +void cn10k_sqe_flush(void *dev, struct otx2_snd_queue *sq, + int size, int qidx); +void otx2_sqe_flush(void *dev, struct otx2_snd_queue *sq, + int size, int qidx); +void otx2_refill_pool_ptrs(void *dev, struct otx2_cq_queue *cq); +void cn10k_refill_pool_ptrs(void *dev, struct otx2_cq_queue *cq); +#endif /* OTX2_TXRX_H */ diff --git a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_vf.c b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_vf.c new file mode 100644 index 000000000..404855bcc --- /dev/null +++ b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_vf.c @@ -0,0 +1,797 @@ +// SPDX-License-Identifier: GPL-2.0 +/* Marvell RVU Virtual Function ethernet driver + * + * Copyright (C) 2020 Marvell. + * + */ + +#include <linux/etherdevice.h> +#include <linux/module.h> +#include <linux/pci.h> +#include <linux/net_tstamp.h> + +#include "otx2_common.h" +#include "otx2_reg.h" +#include "otx2_ptp.h" +#include "cn10k.h" + +#define DRV_NAME "rvu_nicvf" +#define DRV_STRING "Marvell RVU NIC Virtual Function Driver" + +static const struct pci_device_id otx2_vf_id_table[] = { + { PCI_DEVICE(PCI_VENDOR_ID_CAVIUM, PCI_DEVID_OCTEONTX2_RVU_AFVF) }, + { PCI_DEVICE(PCI_VENDOR_ID_CAVIUM, PCI_DEVID_OCTEONTX2_RVU_VF) }, + { } +}; + +MODULE_AUTHOR("Sunil Goutham <sgoutham@marvell.com>"); +MODULE_DESCRIPTION(DRV_STRING); +MODULE_LICENSE("GPL v2"); +MODULE_DEVICE_TABLE(pci, otx2_vf_id_table); + +/* RVU VF Interrupt Vector Enumeration */ +enum { + RVU_VF_INT_VEC_MBOX = 0x0, +}; + +static void otx2vf_process_vfaf_mbox_msg(struct otx2_nic *vf, + struct mbox_msghdr *msg) +{ + if (msg->id >= MBOX_MSG_MAX) { + dev_err(vf->dev, + "Mbox msg with unknown ID %d\n", msg->id); + return; + } + + if (msg->sig != OTX2_MBOX_RSP_SIG) { + dev_err(vf->dev, + "Mbox msg with wrong signature %x, ID %d\n", + msg->sig, msg->id); + return; + } + + if (msg->rc == MBOX_MSG_INVALID) { + dev_err(vf->dev, + "PF/AF says the sent msg(s) %d were invalid\n", + msg->id); + return; + } + + switch (msg->id) { + case MBOX_MSG_READY: + vf->pcifunc = msg->pcifunc; + break; + case MBOX_MSG_MSIX_OFFSET: + mbox_handler_msix_offset(vf, (struct msix_offset_rsp *)msg); + break; + case MBOX_MSG_NPA_LF_ALLOC: + mbox_handler_npa_lf_alloc(vf, (struct npa_lf_alloc_rsp *)msg); + break; + case MBOX_MSG_NIX_LF_ALLOC: + mbox_handler_nix_lf_alloc(vf, (struct nix_lf_alloc_rsp *)msg); + break; + case MBOX_MSG_NIX_BP_ENABLE: + mbox_handler_nix_bp_enable(vf, (struct nix_bp_cfg_rsp *)msg); + break; + default: + if (msg->rc) + dev_err(vf->dev, + "Mbox msg response has err %d, ID %d\n", + msg->rc, msg->id); + } +} + +static void otx2vf_vfaf_mbox_handler(struct work_struct *work) +{ + struct otx2_mbox_dev *mdev; + struct mbox_hdr *rsp_hdr; + struct mbox_msghdr *msg; + struct otx2_mbox *mbox; + struct mbox *af_mbox; + int offset, id; + + af_mbox = container_of(work, struct mbox, mbox_wrk); + mbox = &af_mbox->mbox; + mdev = &mbox->dev[0]; + rsp_hdr = (struct mbox_hdr *)(mdev->mbase + mbox->rx_start); + if (af_mbox->num_msgs == 0) + return; + offset = mbox->rx_start + ALIGN(sizeof(*rsp_hdr), MBOX_MSG_ALIGN); + + for (id = 0; id < af_mbox->num_msgs; id++) { + msg = (struct mbox_msghdr *)(mdev->mbase + offset); + otx2vf_process_vfaf_mbox_msg(af_mbox->pfvf, msg); + offset = mbox->rx_start + msg->next_msgoff; + if (mdev->msgs_acked == (af_mbox->num_msgs - 1)) + __otx2_mbox_reset(mbox, 0); + mdev->msgs_acked++; + } +} + +static int otx2vf_process_mbox_msg_up(struct otx2_nic *vf, + struct mbox_msghdr *req) +{ + struct msg_rsp *rsp; + int err; + + /* Check if valid, if not reply with a invalid msg */ + if (req->sig != OTX2_MBOX_REQ_SIG) { + otx2_reply_invalid_msg(&vf->mbox.mbox_up, 0, 0, req->id); + return -ENODEV; + } + + switch (req->id) { + case MBOX_MSG_CGX_LINK_EVENT: + rsp = (struct msg_rsp *)otx2_mbox_alloc_msg( + &vf->mbox.mbox_up, 0, + sizeof(struct msg_rsp)); + if (!rsp) + return -ENOMEM; + + rsp->hdr.id = MBOX_MSG_CGX_LINK_EVENT; + rsp->hdr.sig = OTX2_MBOX_RSP_SIG; + rsp->hdr.pcifunc = 0; + rsp->hdr.rc = 0; + err = otx2_mbox_up_handler_cgx_link_event( + vf, (struct cgx_link_info_msg *)req, rsp); + return err; + default: + otx2_reply_invalid_msg(&vf->mbox.mbox_up, 0, 0, req->id); + return -ENODEV; + } + return 0; +} + +static void otx2vf_vfaf_mbox_up_handler(struct work_struct *work) +{ + struct otx2_mbox_dev *mdev; + struct mbox_hdr *rsp_hdr; + struct mbox_msghdr *msg; + struct otx2_mbox *mbox; + struct mbox *vf_mbox; + struct otx2_nic *vf; + int offset, id; + + vf_mbox = container_of(work, struct mbox, mbox_up_wrk); + vf = vf_mbox->pfvf; + mbox = &vf_mbox->mbox_up; + mdev = &mbox->dev[0]; + + rsp_hdr = (struct mbox_hdr *)(mdev->mbase + mbox->rx_start); + if (vf_mbox->up_num_msgs == 0) + return; + + offset = mbox->rx_start + ALIGN(sizeof(*rsp_hdr), MBOX_MSG_ALIGN); + + for (id = 0; id < vf_mbox->up_num_msgs; id++) { + msg = (struct mbox_msghdr *)(mdev->mbase + offset); + otx2vf_process_mbox_msg_up(vf, msg); + offset = mbox->rx_start + msg->next_msgoff; + } + + otx2_mbox_msg_send(mbox, 0); +} + +static irqreturn_t otx2vf_vfaf_mbox_intr_handler(int irq, void *vf_irq) +{ + struct otx2_nic *vf = (struct otx2_nic *)vf_irq; + struct otx2_mbox_dev *mdev; + struct otx2_mbox *mbox; + struct mbox_hdr *hdr; + + /* Clear the IRQ */ + otx2_write64(vf, RVU_VF_INT, BIT_ULL(0)); + + /* Read latest mbox data */ + smp_rmb(); + + /* Check for PF => VF response messages */ + mbox = &vf->mbox.mbox; + mdev = &mbox->dev[0]; + otx2_sync_mbox_bbuf(mbox, 0); + + trace_otx2_msg_interrupt(mbox->pdev, "PF to VF", BIT_ULL(0)); + + hdr = (struct mbox_hdr *)(mdev->mbase + mbox->rx_start); + if (hdr->num_msgs) { + vf->mbox.num_msgs = hdr->num_msgs; + hdr->num_msgs = 0; + memset(mbox->hwbase + mbox->rx_start, 0, + ALIGN(sizeof(struct mbox_hdr), sizeof(u64))); + queue_work(vf->mbox_wq, &vf->mbox.mbox_wrk); + } + /* Check for PF => VF notification messages */ + mbox = &vf->mbox.mbox_up; + mdev = &mbox->dev[0]; + otx2_sync_mbox_bbuf(mbox, 0); + + hdr = (struct mbox_hdr *)(mdev->mbase + mbox->rx_start); + if (hdr->num_msgs) { + vf->mbox.up_num_msgs = hdr->num_msgs; + hdr->num_msgs = 0; + memset(mbox->hwbase + mbox->rx_start, 0, + ALIGN(sizeof(struct mbox_hdr), sizeof(u64))); + queue_work(vf->mbox_wq, &vf->mbox.mbox_up_wrk); + } + + return IRQ_HANDLED; +} + +static void otx2vf_disable_mbox_intr(struct otx2_nic *vf) +{ + int vector = pci_irq_vector(vf->pdev, RVU_VF_INT_VEC_MBOX); + + /* Disable VF => PF mailbox IRQ */ + otx2_write64(vf, RVU_VF_INT_ENA_W1C, BIT_ULL(0)); + free_irq(vector, vf); +} + +static int otx2vf_register_mbox_intr(struct otx2_nic *vf, bool probe_pf) +{ + struct otx2_hw *hw = &vf->hw; + struct msg_req *req; + char *irq_name; + int err; + + /* Register mailbox interrupt handler */ + irq_name = &hw->irq_name[RVU_VF_INT_VEC_MBOX * NAME_SIZE]; + snprintf(irq_name, NAME_SIZE, "RVUVFAF Mbox"); + err = request_irq(pci_irq_vector(vf->pdev, RVU_VF_INT_VEC_MBOX), + otx2vf_vfaf_mbox_intr_handler, 0, irq_name, vf); + if (err) { + dev_err(vf->dev, + "RVUPF: IRQ registration failed for VFAF mbox irq\n"); + return err; + } + + /* Enable mailbox interrupt for msgs coming from PF. + * First clear to avoid spurious interrupts, if any. + */ + otx2_write64(vf, RVU_VF_INT, BIT_ULL(0)); + otx2_write64(vf, RVU_VF_INT_ENA_W1S, BIT_ULL(0)); + + if (!probe_pf) + return 0; + + /* Check mailbox communication with PF */ + req = otx2_mbox_alloc_msg_ready(&vf->mbox); + if (!req) { + otx2vf_disable_mbox_intr(vf); + return -ENOMEM; + } + + err = otx2_sync_mbox_msg(&vf->mbox); + if (err) { + dev_warn(vf->dev, + "AF not responding to mailbox, deferring probe\n"); + otx2vf_disable_mbox_intr(vf); + return -EPROBE_DEFER; + } + return 0; +} + +static void otx2vf_vfaf_mbox_destroy(struct otx2_nic *vf) +{ + struct mbox *mbox = &vf->mbox; + + if (vf->mbox_wq) { + destroy_workqueue(vf->mbox_wq); + vf->mbox_wq = NULL; + } + + if (mbox->mbox.hwbase && !test_bit(CN10K_MBOX, &vf->hw.cap_flag)) + iounmap((void __iomem *)mbox->mbox.hwbase); + + otx2_mbox_destroy(&mbox->mbox); + otx2_mbox_destroy(&mbox->mbox_up); +} + +static int otx2vf_vfaf_mbox_init(struct otx2_nic *vf) +{ + struct mbox *mbox = &vf->mbox; + void __iomem *hwbase; + int err; + + mbox->pfvf = vf; + vf->mbox_wq = alloc_workqueue("otx2_vfaf_mailbox", + WQ_UNBOUND | WQ_HIGHPRI | + WQ_MEM_RECLAIM, 1); + if (!vf->mbox_wq) + return -ENOMEM; + + if (test_bit(CN10K_MBOX, &vf->hw.cap_flag)) { + /* For cn10k platform, VF mailbox region is in its BAR2 + * register space + */ + hwbase = vf->reg_base + RVU_VF_MBOX_REGION; + } else { + /* Mailbox is a reserved memory (in RAM) region shared between + * admin function (i.e PF0) and this VF, shouldn't be mapped as + * device memory to allow unaligned accesses. + */ + hwbase = ioremap_wc(pci_resource_start(vf->pdev, + PCI_MBOX_BAR_NUM), + pci_resource_len(vf->pdev, + PCI_MBOX_BAR_NUM)); + if (!hwbase) { + dev_err(vf->dev, "Unable to map VFAF mailbox region\n"); + err = -ENOMEM; + goto exit; + } + } + + err = otx2_mbox_init(&mbox->mbox, hwbase, vf->pdev, vf->reg_base, + MBOX_DIR_VFPF, 1); + if (err) + goto exit; + + err = otx2_mbox_init(&mbox->mbox_up, hwbase, vf->pdev, vf->reg_base, + MBOX_DIR_VFPF_UP, 1); + if (err) + goto exit; + + err = otx2_mbox_bbuf_init(mbox, vf->pdev); + if (err) + goto exit; + + INIT_WORK(&mbox->mbox_wrk, otx2vf_vfaf_mbox_handler); + INIT_WORK(&mbox->mbox_up_wrk, otx2vf_vfaf_mbox_up_handler); + mutex_init(&mbox->lock); + + return 0; +exit: + if (hwbase && !test_bit(CN10K_MBOX, &vf->hw.cap_flag)) + iounmap(hwbase); + destroy_workqueue(vf->mbox_wq); + return err; +} + +static int otx2vf_open(struct net_device *netdev) +{ + struct otx2_nic *vf; + int err; + + err = otx2_open(netdev); + if (err) + return err; + + /* LBKs do not receive link events so tell everyone we are up here */ + vf = netdev_priv(netdev); + if (is_otx2_lbkvf(vf->pdev)) { + pr_info("%s NIC Link is UP\n", netdev->name); + netif_carrier_on(netdev); + netif_tx_start_all_queues(netdev); + } + + return 0; +} + +static int otx2vf_stop(struct net_device *netdev) +{ + return otx2_stop(netdev); +} + +static netdev_tx_t otx2vf_xmit(struct sk_buff *skb, struct net_device *netdev) +{ + struct otx2_nic *vf = netdev_priv(netdev); + int qidx = skb_get_queue_mapping(skb); + struct otx2_snd_queue *sq; + struct netdev_queue *txq; + + sq = &vf->qset.sq[qidx]; + txq = netdev_get_tx_queue(netdev, qidx); + + if (!otx2_sq_append_skb(netdev, sq, skb, qidx)) { + netif_tx_stop_queue(txq); + + /* Check again, incase SQBs got freed up */ + smp_mb(); + if (((sq->num_sqbs - *sq->aura_fc_addr) * sq->sqe_per_sqb) + > sq->sqe_thresh) + netif_tx_wake_queue(txq); + + return NETDEV_TX_BUSY; + } + + return NETDEV_TX_OK; +} + +static void otx2vf_set_rx_mode(struct net_device *netdev) +{ + struct otx2_nic *vf = netdev_priv(netdev); + + queue_work(vf->otx2_wq, &vf->rx_mode_work); +} + +static void otx2vf_do_set_rx_mode(struct work_struct *work) +{ + struct otx2_nic *vf = container_of(work, struct otx2_nic, rx_mode_work); + struct net_device *netdev = vf->netdev; + unsigned int flags = netdev->flags; + struct nix_rx_mode *req; + + mutex_lock(&vf->mbox.lock); + + req = otx2_mbox_alloc_msg_nix_set_rx_mode(&vf->mbox); + if (!req) { + mutex_unlock(&vf->mbox.lock); + return; + } + + req->mode = NIX_RX_MODE_UCAST; + + if (flags & IFF_PROMISC) + req->mode |= NIX_RX_MODE_PROMISC; + if (flags & (IFF_ALLMULTI | IFF_MULTICAST)) + req->mode |= NIX_RX_MODE_ALLMULTI; + + req->mode |= NIX_RX_MODE_USE_MCE; + + otx2_sync_mbox_msg(&vf->mbox); + + mutex_unlock(&vf->mbox.lock); +} + +static int otx2vf_change_mtu(struct net_device *netdev, int new_mtu) +{ + bool if_up = netif_running(netdev); + int err = 0; + + if (if_up) + otx2vf_stop(netdev); + + netdev_info(netdev, "Changing MTU from %d to %d\n", + netdev->mtu, new_mtu); + netdev->mtu = new_mtu; + + if (if_up) + err = otx2vf_open(netdev); + + return err; +} + +static void otx2vf_reset_task(struct work_struct *work) +{ + struct otx2_nic *vf = container_of(work, struct otx2_nic, reset_task); + + rtnl_lock(); + + if (netif_running(vf->netdev)) { + otx2vf_stop(vf->netdev); + vf->reset_count++; + otx2vf_open(vf->netdev); + } + + rtnl_unlock(); +} + +static int otx2vf_set_features(struct net_device *netdev, + netdev_features_t features) +{ + return otx2_handle_ntuple_tc_features(netdev, features); +} + +static const struct net_device_ops otx2vf_netdev_ops = { + .ndo_open = otx2vf_open, + .ndo_stop = otx2vf_stop, + .ndo_start_xmit = otx2vf_xmit, + .ndo_select_queue = otx2_select_queue, + .ndo_set_rx_mode = otx2vf_set_rx_mode, + .ndo_set_mac_address = otx2_set_mac_address, + .ndo_change_mtu = otx2vf_change_mtu, + .ndo_set_features = otx2vf_set_features, + .ndo_get_stats64 = otx2_get_stats64, + .ndo_tx_timeout = otx2_tx_timeout, + .ndo_eth_ioctl = otx2_ioctl, + .ndo_setup_tc = otx2_setup_tc, +}; + +static int otx2_wq_init(struct otx2_nic *vf) +{ + vf->otx2_wq = create_singlethread_workqueue("otx2vf_wq"); + if (!vf->otx2_wq) + return -ENOMEM; + + INIT_WORK(&vf->rx_mode_work, otx2vf_do_set_rx_mode); + INIT_WORK(&vf->reset_task, otx2vf_reset_task); + return 0; +} + +static int otx2vf_realloc_msix_vectors(struct otx2_nic *vf) +{ + struct otx2_hw *hw = &vf->hw; + int num_vec, err; + + num_vec = hw->nix_msixoff; + num_vec += NIX_LF_CINT_VEC_START + hw->max_queues; + + otx2vf_disable_mbox_intr(vf); + pci_free_irq_vectors(hw->pdev); + err = pci_alloc_irq_vectors(hw->pdev, num_vec, num_vec, PCI_IRQ_MSIX); + if (err < 0) { + dev_err(vf->dev, "%s: Failed to realloc %d IRQ vectors\n", + __func__, num_vec); + return err; + } + + return otx2vf_register_mbox_intr(vf, false); +} + +static int otx2vf_probe(struct pci_dev *pdev, const struct pci_device_id *id) +{ + int num_vec = pci_msix_vec_count(pdev); + struct device *dev = &pdev->dev; + int err, qcount, qos_txqs; + struct net_device *netdev; + struct otx2_nic *vf; + struct otx2_hw *hw; + + err = pcim_enable_device(pdev); + if (err) { + dev_err(dev, "Failed to enable PCI device\n"); + return err; + } + + err = pci_request_regions(pdev, DRV_NAME); + if (err) { + dev_err(dev, "PCI request regions failed 0x%x\n", err); + return err; + } + + err = dma_set_mask_and_coherent(dev, DMA_BIT_MASK(48)); + if (err) { + dev_err(dev, "DMA mask config failed, abort\n"); + goto err_release_regions; + } + + pci_set_master(pdev); + + qcount = num_online_cpus(); + qos_txqs = min_t(int, qcount, OTX2_QOS_MAX_LEAF_NODES); + netdev = alloc_etherdev_mqs(sizeof(*vf), qcount + qos_txqs, qcount); + if (!netdev) { + err = -ENOMEM; + goto err_release_regions; + } + + pci_set_drvdata(pdev, netdev); + SET_NETDEV_DEV(netdev, &pdev->dev); + vf = netdev_priv(netdev); + vf->netdev = netdev; + vf->pdev = pdev; + vf->dev = dev; + vf->iommu_domain = iommu_get_domain_for_dev(dev); + + vf->flags |= OTX2_FLAG_INTF_DOWN; + hw = &vf->hw; + hw->pdev = vf->pdev; + hw->rx_queues = qcount; + hw->tx_queues = qcount; + hw->max_queues = qcount; + hw->non_qos_queues = qcount; + hw->rbuf_len = OTX2_DEFAULT_RBUF_LEN; + /* Use CQE of 128 byte descriptor size by default */ + hw->xqe_size = 128; + + hw->irq_name = devm_kmalloc_array(&hw->pdev->dev, num_vec, NAME_SIZE, + GFP_KERNEL); + if (!hw->irq_name) { + err = -ENOMEM; + goto err_free_netdev; + } + + hw->affinity_mask = devm_kcalloc(&hw->pdev->dev, num_vec, + sizeof(cpumask_var_t), GFP_KERNEL); + if (!hw->affinity_mask) { + err = -ENOMEM; + goto err_free_netdev; + } + + err = pci_alloc_irq_vectors(hw->pdev, num_vec, num_vec, PCI_IRQ_MSIX); + if (err < 0) { + dev_err(dev, "%s: Failed to alloc %d IRQ vectors\n", + __func__, num_vec); + goto err_free_netdev; + } + + vf->reg_base = pcim_iomap(pdev, PCI_CFG_REG_BAR_NUM, 0); + if (!vf->reg_base) { + dev_err(dev, "Unable to map physical function CSRs, aborting\n"); + err = -ENOMEM; + goto err_free_irq_vectors; + } + + otx2_setup_dev_hw_settings(vf); + /* Init VF <=> PF mailbox stuff */ + err = otx2vf_vfaf_mbox_init(vf); + if (err) + goto err_free_irq_vectors; + + /* Register mailbox interrupt */ + err = otx2vf_register_mbox_intr(vf, true); + if (err) + goto err_mbox_destroy; + + /* Request AF to attach NPA and LIX LFs to this AF */ + err = otx2_attach_npa_nix(vf); + if (err) + goto err_disable_mbox_intr; + + err = otx2vf_realloc_msix_vectors(vf); + if (err) + goto err_detach_rsrc; + + err = otx2_set_real_num_queues(netdev, qcount, qcount); + if (err) + goto err_detach_rsrc; + + err = cn10k_lmtst_init(vf); + if (err) + goto err_detach_rsrc; + + /* Don't check for error. Proceed without ptp */ + otx2_ptp_init(vf); + + /* Assign default mac address */ + otx2_get_mac_from_af(netdev); + + netdev->hw_features = NETIF_F_RXCSUM | NETIF_F_IP_CSUM | + NETIF_F_IPV6_CSUM | NETIF_F_RXHASH | + NETIF_F_SG | NETIF_F_TSO | NETIF_F_TSO6 | + NETIF_F_GSO_UDP_L4; + netdev->features = netdev->hw_features; + /* Support TSO on tag interface */ + netdev->vlan_features |= netdev->features; + netdev->hw_features |= NETIF_F_HW_VLAN_CTAG_TX | + NETIF_F_HW_VLAN_STAG_TX; + netdev->features |= netdev->hw_features; + + netdev->hw_features |= NETIF_F_NTUPLE; + netdev->hw_features |= NETIF_F_RXALL; + netdev->hw_features |= NETIF_F_HW_TC; + + netif_set_tso_max_segs(netdev, OTX2_MAX_GSO_SEGS); + netdev->watchdog_timeo = OTX2_TX_TIMEOUT; + + netdev->netdev_ops = &otx2vf_netdev_ops; + + netdev->min_mtu = OTX2_MIN_MTU; + netdev->max_mtu = otx2_get_max_mtu(vf); + + /* To distinguish, for LBK VFs set netdev name explicitly */ + if (is_otx2_lbkvf(vf->pdev)) { + int n; + + n = (vf->pcifunc >> RVU_PFVF_FUNC_SHIFT) & RVU_PFVF_FUNC_MASK; + /* Need to subtract 1 to get proper VF number */ + n -= 1; + snprintf(netdev->name, sizeof(netdev->name), "lbk%d", n); + } + + err = register_netdev(netdev); + if (err) { + dev_err(dev, "Failed to register netdevice\n"); + goto err_ptp_destroy; + } + + err = otx2_wq_init(vf); + if (err) + goto err_unreg_netdev; + + otx2vf_set_ethtool_ops(netdev); + + err = otx2vf_mcam_flow_init(vf); + if (err) + goto err_unreg_netdev; + + err = otx2_init_tc(vf); + if (err) + goto err_unreg_netdev; + + err = otx2_register_dl(vf); + if (err) + goto err_shutdown_tc; + +#ifdef CONFIG_DCB + err = otx2_dcbnl_set_ops(netdev); + if (err) + goto err_shutdown_tc; +#endif + otx2_qos_init(vf, qos_txqs); + + return 0; + +err_shutdown_tc: + otx2_shutdown_tc(vf); +err_unreg_netdev: + unregister_netdev(netdev); +err_ptp_destroy: + otx2_ptp_destroy(vf); +err_detach_rsrc: + free_percpu(vf->hw.lmt_info); + if (test_bit(CN10K_LMTST, &vf->hw.cap_flag)) + qmem_free(vf->dev, vf->dync_lmt); + otx2_detach_resources(&vf->mbox); +err_disable_mbox_intr: + otx2vf_disable_mbox_intr(vf); +err_mbox_destroy: + otx2vf_vfaf_mbox_destroy(vf); +err_free_irq_vectors: + pci_free_irq_vectors(hw->pdev); +err_free_netdev: + pci_set_drvdata(pdev, NULL); + free_netdev(netdev); +err_release_regions: + pci_release_regions(pdev); + return err; +} + +static void otx2vf_remove(struct pci_dev *pdev) +{ + struct net_device *netdev = pci_get_drvdata(pdev); + struct otx2_nic *vf; + + if (!netdev) + return; + + vf = netdev_priv(netdev); + + /* Disable 802.3x pause frames */ + if (vf->flags & OTX2_FLAG_RX_PAUSE_ENABLED || + (vf->flags & OTX2_FLAG_TX_PAUSE_ENABLED)) { + vf->flags &= ~OTX2_FLAG_RX_PAUSE_ENABLED; + vf->flags &= ~OTX2_FLAG_TX_PAUSE_ENABLED; + otx2_config_pause_frm(vf); + } + +#ifdef CONFIG_DCB + /* Disable PFC config */ + if (vf->pfc_en) { + vf->pfc_en = 0; + otx2_config_priority_flow_ctrl(vf); + } +#endif + + cancel_work_sync(&vf->reset_task); + otx2_unregister_dl(vf); + unregister_netdev(netdev); + if (vf->otx2_wq) + destroy_workqueue(vf->otx2_wq); + otx2_ptp_destroy(vf); + otx2_mcam_flow_del(vf); + otx2_shutdown_tc(vf); + otx2vf_disable_mbox_intr(vf); + otx2_detach_resources(&vf->mbox); + free_percpu(vf->hw.lmt_info); + if (test_bit(CN10K_LMTST, &vf->hw.cap_flag)) + qmem_free(vf->dev, vf->dync_lmt); + otx2vf_vfaf_mbox_destroy(vf); + pci_free_irq_vectors(vf->pdev); + pci_set_drvdata(pdev, NULL); + free_netdev(netdev); + + pci_release_regions(pdev); +} + +static struct pci_driver otx2vf_driver = { + .name = DRV_NAME, + .id_table = otx2_vf_id_table, + .probe = otx2vf_probe, + .remove = otx2vf_remove, + .shutdown = otx2vf_remove, +}; + +static int __init otx2vf_init_module(void) +{ + pr_info("%s: %s\n", DRV_NAME, DRV_STRING); + + return pci_register_driver(&otx2vf_driver); +} + +static void __exit otx2vf_cleanup_module(void) +{ + pci_unregister_driver(&otx2vf_driver); +} + +module_init(otx2vf_init_module); +module_exit(otx2vf_cleanup_module); diff --git a/drivers/net/ethernet/marvell/octeontx2/nic/qos.h b/drivers/net/ethernet/marvell/octeontx2/nic/qos.h new file mode 100644 index 000000000..73a62d092 --- /dev/null +++ b/drivers/net/ethernet/marvell/octeontx2/nic/qos.h @@ -0,0 +1,19 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* Marvell RVU Ethernet driver + * + * Copyright (C) 2023 Marvell. + * + */ +#ifndef OTX2_QOS_H +#define OTX2_QOS_H + +#define OTX2_QOS_MAX_LEAF_NODES 16 + +int otx2_qos_enable_sq(struct otx2_nic *pfvf, int qidx, u16 smq); +void otx2_qos_disable_sq(struct otx2_nic *pfvf, int qidx, u16 mdq); + +struct otx2_qos { + u16 qid_to_sqmap[OTX2_QOS_MAX_LEAF_NODES]; + }; + +#endif diff --git a/drivers/net/ethernet/marvell/octeontx2/nic/qos_sq.c b/drivers/net/ethernet/marvell/octeontx2/nic/qos_sq.c new file mode 100644 index 000000000..e142d43f5 --- /dev/null +++ b/drivers/net/ethernet/marvell/octeontx2/nic/qos_sq.c @@ -0,0 +1,282 @@ +// SPDX-License-Identifier: GPL-2.0 +/* Marvell RVU Physical Function ethernet driver + * + * Copyright (C) 2023 Marvell. + * + */ + +#include <linux/netdevice.h> +#include <net/tso.h> + +#include "cn10k.h" +#include "otx2_reg.h" +#include "otx2_common.h" +#include "otx2_txrx.h" +#include "otx2_struct.h" + +#define OTX2_QOS_MAX_LEAF_NODES 16 + +static void otx2_qos_aura_pool_free(struct otx2_nic *pfvf, int pool_id) +{ + struct otx2_pool *pool; + + if (!pfvf->qset.pool) + return; + + pool = &pfvf->qset.pool[pool_id]; + qmem_free(pfvf->dev, pool->stack); + qmem_free(pfvf->dev, pool->fc_addr); + pool->stack = NULL; + pool->fc_addr = NULL; +} + +static int otx2_qos_sq_aura_pool_init(struct otx2_nic *pfvf, int qidx) +{ + struct otx2_qset *qset = &pfvf->qset; + int pool_id, stack_pages, num_sqbs; + struct otx2_hw *hw = &pfvf->hw; + struct otx2_snd_queue *sq; + struct otx2_pool *pool; + dma_addr_t bufptr; + int err, ptr; + u64 iova, pa; + + /* Calculate number of SQBs needed. + * + * For a 128byte SQE, and 4K size SQB, 31 SQEs will fit in one SQB. + * Last SQE is used for pointing to next SQB. + */ + num_sqbs = (hw->sqb_size / 128) - 1; + num_sqbs = (qset->sqe_cnt + num_sqbs) / num_sqbs; + + /* Get no of stack pages needed */ + stack_pages = + (num_sqbs + hw->stack_pg_ptrs - 1) / hw->stack_pg_ptrs; + + pool_id = otx2_get_pool_idx(pfvf, AURA_NIX_SQ, qidx); + pool = &pfvf->qset.pool[pool_id]; + + /* Initialize aura context */ + err = otx2_aura_init(pfvf, pool_id, pool_id, num_sqbs); + if (err) + return err; + + /* Initialize pool context */ + err = otx2_pool_init(pfvf, pool_id, stack_pages, + num_sqbs, hw->sqb_size); + if (err) + goto aura_free; + + /* Flush accumulated messages */ + err = otx2_sync_mbox_msg(&pfvf->mbox); + if (err) + goto pool_free; + + /* Allocate pointers and free them to aura/pool */ + sq = &qset->sq[qidx]; + sq->sqb_count = 0; + sq->sqb_ptrs = kcalloc(num_sqbs, sizeof(*sq->sqb_ptrs), GFP_KERNEL); + if (!sq->sqb_ptrs) { + err = -ENOMEM; + goto pool_free; + } + + for (ptr = 0; ptr < num_sqbs; ptr++) { + err = otx2_alloc_rbuf(pfvf, pool, &bufptr); + if (err) + goto sqb_free; + pfvf->hw_ops->aura_freeptr(pfvf, pool_id, bufptr); + sq->sqb_ptrs[sq->sqb_count++] = (u64)bufptr; + } + + return 0; + +sqb_free: + while (ptr--) { + if (!sq->sqb_ptrs[ptr]) + continue; + iova = sq->sqb_ptrs[ptr]; + pa = otx2_iova_to_phys(pfvf->iommu_domain, iova); + dma_unmap_page_attrs(pfvf->dev, iova, hw->sqb_size, + DMA_FROM_DEVICE, + DMA_ATTR_SKIP_CPU_SYNC); + put_page(virt_to_page(phys_to_virt(pa))); + otx2_aura_allocptr(pfvf, pool_id); + } + sq->sqb_count = 0; + kfree(sq->sqb_ptrs); +pool_free: + qmem_free(pfvf->dev, pool->stack); +aura_free: + qmem_free(pfvf->dev, pool->fc_addr); + otx2_mbox_reset(&pfvf->mbox.mbox, 0); + return err; +} + +static void otx2_qos_sq_free_sqbs(struct otx2_nic *pfvf, int qidx) +{ + struct otx2_qset *qset = &pfvf->qset; + struct otx2_hw *hw = &pfvf->hw; + struct otx2_snd_queue *sq; + u64 iova, pa; + int sqb; + + sq = &qset->sq[qidx]; + if (!sq->sqb_ptrs) + return; + for (sqb = 0; sqb < sq->sqb_count; sqb++) { + if (!sq->sqb_ptrs[sqb]) + continue; + iova = sq->sqb_ptrs[sqb]; + pa = otx2_iova_to_phys(pfvf->iommu_domain, iova); + dma_unmap_page_attrs(pfvf->dev, iova, hw->sqb_size, + DMA_FROM_DEVICE, + DMA_ATTR_SKIP_CPU_SYNC); + put_page(virt_to_page(phys_to_virt(pa))); + } + + sq->sqb_count = 0; + + sq = &qset->sq[qidx]; + qmem_free(pfvf->dev, sq->sqe); + qmem_free(pfvf->dev, sq->tso_hdrs); + kfree(sq->sg); + kfree(sq->sqb_ptrs); + qmem_free(pfvf->dev, sq->timestamps); + + memset((void *)sq, 0, sizeof(*sq)); +} + +/* send queue id */ +static void otx2_qos_sqb_flush(struct otx2_nic *pfvf, int qidx) +{ + int sqe_tail, sqe_head; + u64 incr, *ptr, val; + + ptr = (__force u64 *)otx2_get_regaddr(pfvf, NIX_LF_SQ_OP_STATUS); + incr = (u64)qidx << 32; + val = otx2_atomic64_add(incr, ptr); + sqe_head = (val >> 20) & 0x3F; + sqe_tail = (val >> 28) & 0x3F; + if (sqe_head != sqe_tail) + usleep_range(50, 60); +} + +static int otx2_qos_ctx_disable(struct otx2_nic *pfvf, u16 qidx, int aura_id) +{ + struct nix_cn10k_aq_enq_req *cn10k_sq_aq; + struct npa_aq_enq_req *aura_aq; + struct npa_aq_enq_req *pool_aq; + struct nix_aq_enq_req *sq_aq; + + if (test_bit(CN10K_LMTST, &pfvf->hw.cap_flag)) { + cn10k_sq_aq = otx2_mbox_alloc_msg_nix_cn10k_aq_enq(&pfvf->mbox); + if (!cn10k_sq_aq) + return -ENOMEM; + cn10k_sq_aq->qidx = qidx; + cn10k_sq_aq->sq.ena = 0; + cn10k_sq_aq->sq_mask.ena = 1; + cn10k_sq_aq->ctype = NIX_AQ_CTYPE_SQ; + cn10k_sq_aq->op = NIX_AQ_INSTOP_WRITE; + } else { + sq_aq = otx2_mbox_alloc_msg_nix_aq_enq(&pfvf->mbox); + if (!sq_aq) + return -ENOMEM; + sq_aq->qidx = qidx; + sq_aq->sq.ena = 0; + sq_aq->sq_mask.ena = 1; + sq_aq->ctype = NIX_AQ_CTYPE_SQ; + sq_aq->op = NIX_AQ_INSTOP_WRITE; + } + + aura_aq = otx2_mbox_alloc_msg_npa_aq_enq(&pfvf->mbox); + if (!aura_aq) { + otx2_mbox_reset(&pfvf->mbox.mbox, 0); + return -ENOMEM; + } + + aura_aq->aura_id = aura_id; + aura_aq->aura.ena = 0; + aura_aq->aura_mask.ena = 1; + aura_aq->ctype = NPA_AQ_CTYPE_AURA; + aura_aq->op = NPA_AQ_INSTOP_WRITE; + + pool_aq = otx2_mbox_alloc_msg_npa_aq_enq(&pfvf->mbox); + if (!pool_aq) { + otx2_mbox_reset(&pfvf->mbox.mbox, 0); + return -ENOMEM; + } + + pool_aq->aura_id = aura_id; + pool_aq->pool.ena = 0; + pool_aq->pool_mask.ena = 1; + + pool_aq->ctype = NPA_AQ_CTYPE_POOL; + pool_aq->op = NPA_AQ_INSTOP_WRITE; + + return otx2_sync_mbox_msg(&pfvf->mbox); +} + +int otx2_qos_enable_sq(struct otx2_nic *pfvf, int qidx, u16 smq) +{ + struct otx2_hw *hw = &pfvf->hw; + int pool_id, sq_idx, err; + + if (pfvf->flags & OTX2_FLAG_INTF_DOWN) + return -EPERM; + + sq_idx = hw->non_qos_queues + qidx; + + mutex_lock(&pfvf->mbox.lock); + err = otx2_qos_sq_aura_pool_init(pfvf, sq_idx); + if (err) + goto out; + + pool_id = otx2_get_pool_idx(pfvf, AURA_NIX_SQ, sq_idx); + pfvf->qos.qid_to_sqmap[qidx] = smq; + err = otx2_sq_init(pfvf, sq_idx, pool_id); + if (err) + goto out; +out: + mutex_unlock(&pfvf->mbox.lock); + return err; +} + +void otx2_qos_disable_sq(struct otx2_nic *pfvf, int qidx, u16 mdq) +{ + struct otx2_qset *qset = &pfvf->qset; + struct otx2_hw *hw = &pfvf->hw; + struct otx2_snd_queue *sq; + struct otx2_cq_queue *cq; + int pool_id, sq_idx; + + sq_idx = hw->non_qos_queues + qidx; + + /* If the DOWN flag is set SQs are already freed */ + if (pfvf->flags & OTX2_FLAG_INTF_DOWN) + return; + + sq = &pfvf->qset.sq[sq_idx]; + if (!sq->sqb_ptrs) + return; + + if (sq_idx < hw->non_qos_queues || + sq_idx >= otx2_get_total_tx_queues(pfvf)) { + netdev_err(pfvf->netdev, "Send Queue is not a QoS queue\n"); + return; + } + + cq = &qset->cq[pfvf->hw.rx_queues + sq_idx]; + pool_id = otx2_get_pool_idx(pfvf, AURA_NIX_SQ, sq_idx); + + otx2_qos_sqb_flush(pfvf, sq_idx); + otx2_smq_flush(pfvf, otx2_get_smq_idx(pfvf, sq_idx)); + otx2_cleanup_tx_cqes(pfvf, cq); + + mutex_lock(&pfvf->mbox.lock); + otx2_qos_ctx_disable(pfvf, sq_idx, pool_id); + mutex_unlock(&pfvf->mbox.lock); + + otx2_qos_sq_free_sqbs(pfvf, sq_idx); + otx2_qos_aura_pool_free(pfvf, pool_id); +} diff --git a/drivers/net/ethernet/marvell/prestera/Kconfig b/drivers/net/ethernet/marvell/prestera/Kconfig new file mode 100644 index 000000000..f2f7663c3 --- /dev/null +++ b/drivers/net/ethernet/marvell/prestera/Kconfig @@ -0,0 +1,27 @@ +# SPDX-License-Identifier: GPL-2.0-only +# +# Marvell Prestera drivers configuration +# + +config PRESTERA + tristate "Marvell Prestera Switch ASICs support" + depends on NET_SWITCHDEV && VLAN_8021Q + depends on BRIDGE || BRIDGE=n + select NET_DEVLINK + select PHYLINK + help + This driver supports Marvell Prestera Switch ASICs family. + + To compile this driver as a module, choose M here: the + module will be called prestera. + +config PRESTERA_PCI + tristate "PCI interface driver for Marvell Prestera Switch ASICs family" + depends on PCI && HAS_IOMEM && PRESTERA + default PRESTERA + help + This is implementation of PCI interface support for Marvell Prestera + Switch ASICs family. + + To compile this driver as a module, choose M here: the + module will be called prestera_pci. diff --git a/drivers/net/ethernet/marvell/prestera/Makefile b/drivers/net/ethernet/marvell/prestera/Makefile new file mode 100644 index 000000000..df14cee80 --- /dev/null +++ b/drivers/net/ethernet/marvell/prestera/Makefile @@ -0,0 +1,9 @@ +# SPDX-License-Identifier: GPL-2.0 +obj-$(CONFIG_PRESTERA) += prestera.o +prestera-objs := prestera_main.o prestera_hw.o prestera_dsa.o \ + prestera_rxtx.o prestera_devlink.o prestera_ethtool.o \ + prestera_switchdev.o prestera_acl.o prestera_flow.o \ + prestera_flower.o prestera_span.o prestera_counter.o \ + prestera_router.o prestera_router_hw.o prestera_matchall.o + +obj-$(CONFIG_PRESTERA_PCI) += prestera_pci.o diff --git a/drivers/net/ethernet/marvell/prestera/prestera.h b/drivers/net/ethernet/marvell/prestera/prestera.h new file mode 100644 index 000000000..35554ee80 --- /dev/null +++ b/drivers/net/ethernet/marvell/prestera/prestera.h @@ -0,0 +1,417 @@ +/* SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0 */ +/* Copyright (c) 2019-2020 Marvell International Ltd. All rights reserved. */ + +#ifndef _PRESTERA_H_ +#define _PRESTERA_H_ + +#include <linux/notifier.h> +#include <linux/skbuff.h> +#include <linux/workqueue.h> +#include <linux/phylink.h> +#include <net/devlink.h> +#include <uapi/linux/if_ether.h> + +#define PRESTERA_DRV_NAME "prestera" + +#define PRESTERA_DEFAULT_VID 1 + +struct prestera_fw_rev { + u16 maj; + u16 min; + u16 sub; +}; + +struct prestera_flood_domain { + struct prestera_switch *sw; + struct list_head flood_domain_port_list; + u32 idx; +}; + +struct prestera_mdb_entry { + struct prestera_switch *sw; + struct prestera_flood_domain *flood_domain; + unsigned char addr[ETH_ALEN]; + u16 vid; +}; + +struct prestera_flood_domain_port { + struct prestera_flood_domain *flood_domain; + struct net_device *dev; + struct list_head flood_domain_port_node; + u16 vid; +}; + +struct prestera_port_stats { + u64 good_octets_received; + u64 bad_octets_received; + u64 mac_trans_error; + u64 broadcast_frames_received; + u64 multicast_frames_received; + u64 frames_64_octets; + u64 frames_65_to_127_octets; + u64 frames_128_to_255_octets; + u64 frames_256_to_511_octets; + u64 frames_512_to_1023_octets; + u64 frames_1024_to_max_octets; + u64 excessive_collision; + u64 multicast_frames_sent; + u64 broadcast_frames_sent; + u64 fc_sent; + u64 fc_received; + u64 buffer_overrun; + u64 undersize; + u64 fragments; + u64 oversize; + u64 jabber; + u64 rx_error_frame_received; + u64 bad_crc; + u64 collisions; + u64 late_collision; + u64 unicast_frames_received; + u64 unicast_frames_sent; + u64 sent_multiple; + u64 sent_deferred; + u64 good_octets_sent; +}; + +#define PRESTERA_AP_PORT_MAX (10) + +struct prestera_port_caps { + u64 supp_link_modes; + u8 supp_fec; + u8 type; + u8 transceiver; +}; + +struct prestera_lag { + struct net_device *dev; + struct list_head members; + u16 member_count; + u16 lag_id; +}; + +struct prestera_flow_block; + +struct prestera_port_mac_state { + bool valid; + u32 mode; + u32 speed; + bool oper; + u8 duplex; + u8 fc; + u8 fec; +}; + +struct prestera_port_phy_state { + u64 lmode_bmap; + struct { + bool pause; + bool asym_pause; + } remote_fc; + u8 mdix; +}; + +struct prestera_port_mac_config { + u32 mode; + u32 speed; + bool admin; + u8 inband; + u8 duplex; + u8 fec; +}; + +struct prestera_port_phy_config { + u32 mode; + bool admin; + u8 mdix; +}; + +struct prestera_port { + struct net_device *dev; + struct prestera_switch *sw; + struct prestera_flow_block *ingress_flow_block; + struct prestera_flow_block *egress_flow_block; + struct devlink_port dl_port; + struct list_head lag_member; + struct prestera_lag *lag; + u32 id; + u32 hw_id; + u32 dev_id; + u16 fp_id; + u16 pvid; + bool autoneg; + u64 adver_link_modes; + u8 adver_fec; + struct prestera_port_caps caps; + struct list_head list; + struct list_head vlans_list; + struct { + struct prestera_port_stats stats; + struct delayed_work caching_dw; + } cached_hw_stats; + struct prestera_port_mac_config cfg_mac; + struct prestera_port_phy_config cfg_phy; + struct prestera_port_mac_state state_mac; + struct prestera_port_phy_state state_phy; + + struct phylink_config phy_config; + struct phylink *phy_link; + struct phylink_pcs phylink_pcs; + + /* protects state_mac */ + spinlock_t state_mac_lock; +}; + +struct prestera_device { + struct device *dev; + u8 __iomem *ctl_regs; + u8 __iomem *pp_regs; + struct prestera_fw_rev fw_rev; + void *priv; + + /* called by device driver to handle received packets */ + void (*recv_pkt)(struct prestera_device *dev); + + /* called by device driver to pass event up to the higher layer */ + int (*recv_msg)(struct prestera_device *dev, void *msg, size_t size); + + /* called by higher layer to send request to the firmware */ + int (*send_req)(struct prestera_device *dev, int qid, void *in_msg, + size_t in_size, void *out_msg, size_t out_size, + unsigned int wait); +}; + +enum prestera_event_type { + PRESTERA_EVENT_TYPE_UNSPEC, + + PRESTERA_EVENT_TYPE_PORT, + PRESTERA_EVENT_TYPE_FDB, + PRESTERA_EVENT_TYPE_RXTX, + + PRESTERA_EVENT_TYPE_MAX +}; + +enum prestera_rxtx_event_id { + PRESTERA_RXTX_EVENT_UNSPEC, + PRESTERA_RXTX_EVENT_RCV_PKT, +}; + +enum prestera_port_event_id { + PRESTERA_PORT_EVENT_UNSPEC, + PRESTERA_PORT_EVENT_MAC_STATE_CHANGED, +}; + +struct prestera_port_event { + u32 port_id; + union { + struct { + u32 mode; + u32 speed; + u8 oper; + u8 duplex; + u8 fc; + u8 fec; + } mac; + struct { + u64 lmode_bmap; + struct { + bool pause; + bool asym_pause; + } remote_fc; + u8 mdix; + } phy; + } data; +}; + +enum prestera_fdb_entry_type { + PRESTERA_FDB_ENTRY_TYPE_REG_PORT, + PRESTERA_FDB_ENTRY_TYPE_LAG, + PRESTERA_FDB_ENTRY_TYPE_MAX +}; + +enum prestera_fdb_event_id { + PRESTERA_FDB_EVENT_UNSPEC, + PRESTERA_FDB_EVENT_LEARNED, + PRESTERA_FDB_EVENT_AGED, +}; + +struct prestera_fdb_event { + enum prestera_fdb_entry_type type; + union { + u32 port_id; + u16 lag_id; + } dest; + u32 vid; + union { + u8 mac[ETH_ALEN]; + } data; +}; + +struct prestera_event { + u16 id; + union { + struct prestera_port_event port_evt; + struct prestera_fdb_event fdb_evt; + }; +}; + +enum prestera_if_type { + /* the interface is of port type (dev,port) */ + PRESTERA_IF_PORT_E = 0, + + /* the interface is of lag type (lag-id) */ + PRESTERA_IF_LAG_E = 1, + + /* the interface is of Vid type (vlan-id) */ + PRESTERA_IF_VID_E = 3, +}; + +struct prestera_iface { + enum prestera_if_type type; + struct { + u32 hw_dev_num; + u32 port_num; + } dev_port; + u32 hw_dev_num; + u16 vr_id; + u16 lag_id; + u16 vlan_id; +}; + +struct prestera_switchdev; +struct prestera_span; +struct prestera_rxtx; +struct prestera_trap_data; +struct prestera_acl; + +struct prestera_switch { + struct prestera_device *dev; + struct prestera_switchdev *swdev; + struct prestera_rxtx *rxtx; + struct prestera_acl *acl; + struct prestera_span *span; + struct list_head event_handlers; + struct notifier_block netdev_nb; + struct prestera_trap_data *trap_data; + char base_mac[ETH_ALEN]; + struct list_head port_list; + rwlock_t port_list_lock; + u32 port_count; + u32 mtu_min; + u32 mtu_max; + u8 id; + struct device_node *np; + struct prestera_router *router; + struct prestera_lag *lags; + struct prestera_counter *counter; + u8 lag_member_max; + u8 lag_max; + u32 size_tbl_router_nexthop; +}; + +struct prestera_router { + struct prestera_switch *sw; + struct list_head vr_list; + struct list_head rif_entry_list; + struct rhashtable nh_neigh_ht; + struct rhashtable nexthop_group_ht; + struct rhashtable fib_ht; + struct rhashtable kern_neigh_cache_ht; + struct rhashtable kern_fib_cache_ht; + struct notifier_block inetaddr_nb; + struct notifier_block inetaddr_valid_nb; + struct notifier_block fib_nb; + struct notifier_block netevent_nb; + u8 *nhgrp_hw_state_cache; /* Bitmap cached hw state of nhs */ + unsigned long nhgrp_hw_cache_kick; /* jiffies */ + struct { + struct delayed_work dw; + } neighs_update; +}; + +struct prestera_rxtx_params { + bool use_sdma; + u32 map_addr; +}; + +#define prestera_dev(sw) ((sw)->dev->dev) + +static inline void prestera_write(const struct prestera_switch *sw, + unsigned int reg, u32 val) +{ + writel(val, sw->dev->pp_regs + reg); +} + +static inline u32 prestera_read(const struct prestera_switch *sw, + unsigned int reg) +{ + return readl(sw->dev->pp_regs + reg); +} + +int prestera_device_register(struct prestera_device *dev); +void prestera_device_unregister(struct prestera_device *dev); + +struct prestera_port *prestera_port_find_by_hwid(struct prestera_switch *sw, + u32 dev_id, u32 hw_id); + +int prestera_port_autoneg_set(struct prestera_port *port, u64 link_modes); + +int prestera_router_init(struct prestera_switch *sw); +void prestera_router_fini(struct prestera_switch *sw); + +struct prestera_port *prestera_find_port(struct prestera_switch *sw, u32 id); + +struct prestera_switch *prestera_switch_get(struct net_device *dev); + +int prestera_port_cfg_mac_read(struct prestera_port *port, + struct prestera_port_mac_config *cfg); + +int prestera_port_cfg_mac_write(struct prestera_port *port, + struct prestera_port_mac_config *cfg); + +struct prestera_port *prestera_port_dev_lower_find(struct net_device *dev); + +void prestera_queue_work(struct work_struct *work); +void prestera_queue_delayed_work(struct delayed_work *work, unsigned long delay); +void prestera_queue_drain(void); + +int prestera_port_learning_set(struct prestera_port *port, bool learn_enable); +int prestera_port_uc_flood_set(struct prestera_port *port, bool flood); +int prestera_port_mc_flood_set(struct prestera_port *port, bool flood); + +int prestera_port_br_locked_set(struct prestera_port *port, bool br_locked); + +int prestera_port_pvid_set(struct prestera_port *port, u16 vid); + +bool prestera_netdev_check(const struct net_device *dev); + +int prestera_is_valid_mac_addr(struct prestera_port *port, const u8 *addr); + +bool prestera_port_is_lag_member(const struct prestera_port *port); +int prestera_lag_id(struct prestera_switch *sw, + struct net_device *lag_dev, u16 *lag_id); + +struct prestera_lag *prestera_lag_by_id(struct prestera_switch *sw, u16 id); + +u16 prestera_port_lag_id(const struct prestera_port *port); + +struct prestera_mdb_entry * +prestera_mdb_entry_create(struct prestera_switch *sw, + const unsigned char *addr, u16 vid); +void prestera_mdb_entry_destroy(struct prestera_mdb_entry *mdb_entry); + +struct prestera_flood_domain * +prestera_flood_domain_create(struct prestera_switch *sw); +void prestera_flood_domain_destroy(struct prestera_flood_domain *flood_domain); + +int +prestera_flood_domain_port_create(struct prestera_flood_domain *flood_domain, + struct net_device *dev, + u16 vid); +void +prestera_flood_domain_port_destroy(struct prestera_flood_domain_port *port); +struct prestera_flood_domain_port * +prestera_flood_domain_port_find(struct prestera_flood_domain *flood_domain, + struct net_device *dev, u16 vid); + +#endif /* _PRESTERA_H_ */ diff --git a/drivers/net/ethernet/marvell/prestera/prestera_acl.c b/drivers/net/ethernet/marvell/prestera/prestera_acl.c new file mode 100644 index 000000000..cba89fda5 --- /dev/null +++ b/drivers/net/ethernet/marvell/prestera/prestera_acl.c @@ -0,0 +1,927 @@ +// SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0 +/* Copyright (c) 2020-2021 Marvell International Ltd. All rights reserved */ + +#include <linux/rhashtable.h> + +#include "prestera_acl.h" +#include "prestera_flow.h" +#include "prestera_hw.h" +#include "prestera.h" + +#define ACL_KEYMASK_SIZE \ + (sizeof(__be32) * __PRESTERA_ACL_RULE_MATCH_TYPE_MAX) + +struct prestera_acl { + struct prestera_switch *sw; + struct list_head vtcam_list; + struct list_head rules; + struct rhashtable ruleset_ht; + struct rhashtable acl_rule_entry_ht; + struct idr uid; +}; + +struct prestera_acl_ruleset_ht_key { + struct prestera_flow_block *block; + u32 chain_index; +}; + +struct prestera_acl_rule_entry { + struct rhash_head ht_node; + struct prestera_acl_rule_entry_key key; + u32 hw_id; + u32 vtcam_id; + struct { + struct { + u8 valid:1; + } accept, drop, trap; + struct { + u8 valid:1; + struct prestera_acl_action_police i; + } police; + struct { + struct prestera_acl_action_jump i; + u8 valid:1; + } jump; + struct { + u32 id; + struct prestera_counter_block *block; + } counter; + }; +}; + +struct prestera_acl_ruleset { + struct rhash_head ht_node; /* Member of acl HT */ + struct prestera_acl_ruleset_ht_key ht_key; + struct rhashtable rule_ht; + struct prestera_acl *acl; + struct { + u32 min; + u32 max; + } prio; + unsigned long rule_count; + refcount_t refcount; + void *keymask; + u32 vtcam_id; + u32 index; + u16 pcl_id; + bool offload; + bool ingress; +}; + +struct prestera_acl_vtcam { + struct list_head list; + __be32 keymask[__PRESTERA_ACL_RULE_MATCH_TYPE_MAX]; + refcount_t refcount; + u32 id; + bool is_keymask_set; + u8 lookup; + u8 direction; +}; + +static const struct rhashtable_params prestera_acl_ruleset_ht_params = { + .key_len = sizeof(struct prestera_acl_ruleset_ht_key), + .key_offset = offsetof(struct prestera_acl_ruleset, ht_key), + .head_offset = offsetof(struct prestera_acl_ruleset, ht_node), + .automatic_shrinking = true, +}; + +static const struct rhashtable_params prestera_acl_rule_ht_params = { + .key_len = sizeof(unsigned long), + .key_offset = offsetof(struct prestera_acl_rule, cookie), + .head_offset = offsetof(struct prestera_acl_rule, ht_node), + .automatic_shrinking = true, +}; + +static const struct rhashtable_params __prestera_acl_rule_entry_ht_params = { + .key_offset = offsetof(struct prestera_acl_rule_entry, key), + .head_offset = offsetof(struct prestera_acl_rule_entry, ht_node), + .key_len = sizeof(struct prestera_acl_rule_entry_key), + .automatic_shrinking = true, +}; + +int prestera_acl_chain_to_client(u32 chain_index, bool ingress, u32 *client) +{ + static const u32 ingress_client_map[] = { + PRESTERA_HW_COUNTER_CLIENT_INGRESS_LOOKUP_0, + PRESTERA_HW_COUNTER_CLIENT_INGRESS_LOOKUP_1, + PRESTERA_HW_COUNTER_CLIENT_INGRESS_LOOKUP_2 + }; + + if (!ingress) { + /* prestera supports only one chain on egress */ + if (chain_index > 0) + return -EINVAL; + + *client = PRESTERA_HW_COUNTER_CLIENT_EGRESS_LOOKUP; + return 0; + } + + if (chain_index >= ARRAY_SIZE(ingress_client_map)) + return -EINVAL; + + *client = ingress_client_map[chain_index]; + return 0; +} + +static bool prestera_acl_chain_is_supported(u32 chain_index, bool ingress) +{ + if (!ingress) + /* prestera supports only one chain on egress */ + return chain_index == 0; + + return (chain_index & ~PRESTERA_ACL_CHAIN_MASK) == 0; +} + +static struct prestera_acl_ruleset * +prestera_acl_ruleset_create(struct prestera_acl *acl, + struct prestera_flow_block *block, + u32 chain_index) +{ + struct prestera_acl_ruleset *ruleset; + u32 uid = 0; + int err; + + if (!prestera_acl_chain_is_supported(chain_index, block->ingress)) + return ERR_PTR(-EINVAL); + + ruleset = kzalloc(sizeof(*ruleset), GFP_KERNEL); + if (!ruleset) + return ERR_PTR(-ENOMEM); + + ruleset->acl = acl; + ruleset->ingress = block->ingress; + ruleset->ht_key.block = block; + ruleset->ht_key.chain_index = chain_index; + refcount_set(&ruleset->refcount, 1); + + err = rhashtable_init(&ruleset->rule_ht, &prestera_acl_rule_ht_params); + if (err) + goto err_rhashtable_init; + + err = idr_alloc_u32(&acl->uid, NULL, &uid, U8_MAX, GFP_KERNEL); + if (err) + goto err_ruleset_create; + + /* make pcl-id based on uid */ + ruleset->pcl_id = PRESTERA_ACL_PCL_ID_MAKE((u8)uid, chain_index); + ruleset->index = uid; + + ruleset->prio.min = UINT_MAX; + ruleset->prio.max = 0; + + err = rhashtable_insert_fast(&acl->ruleset_ht, &ruleset->ht_node, + prestera_acl_ruleset_ht_params); + if (err) + goto err_ruleset_ht_insert; + + return ruleset; + +err_ruleset_ht_insert: + idr_remove(&acl->uid, uid); +err_ruleset_create: + rhashtable_destroy(&ruleset->rule_ht); +err_rhashtable_init: + kfree(ruleset); + return ERR_PTR(err); +} + +int prestera_acl_ruleset_keymask_set(struct prestera_acl_ruleset *ruleset, + void *keymask) +{ + ruleset->keymask = kmemdup(keymask, ACL_KEYMASK_SIZE, GFP_KERNEL); + if (!ruleset->keymask) + return -ENOMEM; + + return 0; +} + +int prestera_acl_ruleset_offload(struct prestera_acl_ruleset *ruleset) +{ + struct prestera_acl_iface iface; + u32 vtcam_id; + int dir; + int err; + + dir = ruleset->ingress ? + PRESTERA_HW_VTCAM_DIR_INGRESS : PRESTERA_HW_VTCAM_DIR_EGRESS; + + if (ruleset->offload) + return -EEXIST; + + err = prestera_acl_vtcam_id_get(ruleset->acl, + ruleset->ht_key.chain_index, + dir, + ruleset->keymask, &vtcam_id); + if (err) + goto err_vtcam_create; + + if (ruleset->ht_key.chain_index) { + /* for chain > 0, bind iface index to pcl-id to be able + * to jump from any other ruleset to this one using the index. + */ + iface.index = ruleset->index; + iface.type = PRESTERA_ACL_IFACE_TYPE_INDEX; + err = prestera_hw_vtcam_iface_bind(ruleset->acl->sw, &iface, + vtcam_id, ruleset->pcl_id); + if (err) + goto err_ruleset_bind; + } + + ruleset->vtcam_id = vtcam_id; + ruleset->offload = true; + return 0; + +err_ruleset_bind: + prestera_acl_vtcam_id_put(ruleset->acl, ruleset->vtcam_id); +err_vtcam_create: + return err; +} + +static void prestera_acl_ruleset_destroy(struct prestera_acl_ruleset *ruleset) +{ + struct prestera_acl *acl = ruleset->acl; + u8 uid = ruleset->pcl_id & PRESTERA_ACL_KEYMASK_PCL_ID_USER; + int err; + + rhashtable_remove_fast(&acl->ruleset_ht, &ruleset->ht_node, + prestera_acl_ruleset_ht_params); + + if (ruleset->offload) { + if (ruleset->ht_key.chain_index) { + struct prestera_acl_iface iface = { + .type = PRESTERA_ACL_IFACE_TYPE_INDEX, + .index = ruleset->index + }; + err = prestera_hw_vtcam_iface_unbind(acl->sw, &iface, + ruleset->vtcam_id); + WARN_ON(err); + } + WARN_ON(prestera_acl_vtcam_id_put(acl, ruleset->vtcam_id)); + } + + idr_remove(&acl->uid, uid); + rhashtable_destroy(&ruleset->rule_ht); + kfree(ruleset->keymask); + kfree(ruleset); +} + +static struct prestera_acl_ruleset * +__prestera_acl_ruleset_lookup(struct prestera_acl *acl, + struct prestera_flow_block *block, + u32 chain_index) +{ + struct prestera_acl_ruleset_ht_key ht_key; + + memset(&ht_key, 0, sizeof(ht_key)); + ht_key.block = block; + ht_key.chain_index = chain_index; + return rhashtable_lookup_fast(&acl->ruleset_ht, &ht_key, + prestera_acl_ruleset_ht_params); +} + +struct prestera_acl_ruleset * +prestera_acl_ruleset_lookup(struct prestera_acl *acl, + struct prestera_flow_block *block, + u32 chain_index) +{ + struct prestera_acl_ruleset *ruleset; + + ruleset = __prestera_acl_ruleset_lookup(acl, block, chain_index); + if (!ruleset) + return ERR_PTR(-ENOENT); + + refcount_inc(&ruleset->refcount); + return ruleset; +} + +struct prestera_acl_ruleset * +prestera_acl_ruleset_get(struct prestera_acl *acl, + struct prestera_flow_block *block, + u32 chain_index) +{ + struct prestera_acl_ruleset *ruleset; + + ruleset = __prestera_acl_ruleset_lookup(acl, block, chain_index); + if (ruleset) { + refcount_inc(&ruleset->refcount); + return ruleset; + } + + return prestera_acl_ruleset_create(acl, block, chain_index); +} + +void prestera_acl_ruleset_put(struct prestera_acl_ruleset *ruleset) +{ + if (!refcount_dec_and_test(&ruleset->refcount)) + return; + + prestera_acl_ruleset_destroy(ruleset); +} + +int prestera_acl_ruleset_bind(struct prestera_acl_ruleset *ruleset, + struct prestera_port *port) +{ + struct prestera_acl_iface iface = { + .type = PRESTERA_ACL_IFACE_TYPE_PORT, + .port = port + }; + + return prestera_hw_vtcam_iface_bind(port->sw, &iface, ruleset->vtcam_id, + ruleset->pcl_id); +} + +int prestera_acl_ruleset_unbind(struct prestera_acl_ruleset *ruleset, + struct prestera_port *port) +{ + struct prestera_acl_iface iface = { + .type = PRESTERA_ACL_IFACE_TYPE_PORT, + .port = port + }; + + return prestera_hw_vtcam_iface_unbind(port->sw, &iface, + ruleset->vtcam_id); +} + +static int prestera_acl_ruleset_block_bind(struct prestera_acl_ruleset *ruleset, + struct prestera_flow_block *block) +{ + struct prestera_flow_block_binding *binding; + int err; + + block->ruleset_zero = ruleset; + list_for_each_entry(binding, &block->binding_list, list) { + err = prestera_acl_ruleset_bind(ruleset, binding->port); + if (err) + goto rollback; + } + return 0; + +rollback: + list_for_each_entry_continue_reverse(binding, &block->binding_list, + list) + err = prestera_acl_ruleset_unbind(ruleset, binding->port); + block->ruleset_zero = NULL; + + return err; +} + +static void +prestera_acl_ruleset_block_unbind(struct prestera_acl_ruleset *ruleset, + struct prestera_flow_block *block) +{ + struct prestera_flow_block_binding *binding; + + list_for_each_entry(binding, &block->binding_list, list) + prestera_acl_ruleset_unbind(ruleset, binding->port); + block->ruleset_zero = NULL; +} + +static void +prestera_acl_ruleset_prio_refresh(struct prestera_acl *acl, + struct prestera_acl_ruleset *ruleset) +{ + struct prestera_acl_rule *rule; + + ruleset->prio.min = UINT_MAX; + ruleset->prio.max = 0; + + list_for_each_entry(rule, &acl->rules, list) { + if (ruleset->ingress != rule->ruleset->ingress) + continue; + if (ruleset->ht_key.chain_index != rule->chain_index) + continue; + + ruleset->prio.min = min(ruleset->prio.min, rule->priority); + ruleset->prio.max = max(ruleset->prio.max, rule->priority); + } +} + +void +prestera_acl_rule_keymask_pcl_id_set(struct prestera_acl_rule *rule, u16 pcl_id) +{ + struct prestera_acl_match *r_match = &rule->re_key.match; + __be16 pcl_id_mask = htons(PRESTERA_ACL_KEYMASK_PCL_ID); + __be16 pcl_id_key = htons(pcl_id); + + rule_match_set(r_match->key, PCL_ID, pcl_id_key); + rule_match_set(r_match->mask, PCL_ID, pcl_id_mask); +} + +struct prestera_acl_rule * +prestera_acl_rule_lookup(struct prestera_acl_ruleset *ruleset, + unsigned long cookie) +{ + return rhashtable_lookup_fast(&ruleset->rule_ht, &cookie, + prestera_acl_rule_ht_params); +} + +u32 prestera_acl_ruleset_index_get(const struct prestera_acl_ruleset *ruleset) +{ + return ruleset->index; +} + +void prestera_acl_ruleset_prio_get(struct prestera_acl_ruleset *ruleset, + u32 *prio_min, u32 *prio_max) +{ + *prio_min = ruleset->prio.min; + *prio_max = ruleset->prio.max; +} + +bool prestera_acl_ruleset_is_offload(struct prestera_acl_ruleset *ruleset) +{ + return ruleset->offload; +} + +struct prestera_acl_rule * +prestera_acl_rule_create(struct prestera_acl_ruleset *ruleset, + unsigned long cookie, u32 chain_index) +{ + struct prestera_acl_rule *rule; + + rule = kzalloc(sizeof(*rule), GFP_KERNEL); + if (!rule) + return ERR_PTR(-ENOMEM); + + rule->ruleset = ruleset; + rule->cookie = cookie; + rule->chain_index = chain_index; + + refcount_inc(&ruleset->refcount); + + return rule; +} + +void prestera_acl_rule_priority_set(struct prestera_acl_rule *rule, + u32 priority) +{ + rule->priority = priority; +} + +void prestera_acl_rule_destroy(struct prestera_acl_rule *rule) +{ + if (rule->jump_ruleset) + /* release ruleset kept by jump action */ + prestera_acl_ruleset_put(rule->jump_ruleset); + + prestera_acl_ruleset_put(rule->ruleset); + kfree(rule); +} + +static void prestera_acl_ruleset_prio_update(struct prestera_acl_ruleset *ruleset, + u32 prio) +{ + ruleset->prio.min = min(ruleset->prio.min, prio); + ruleset->prio.max = max(ruleset->prio.max, prio); +} + +int prestera_acl_rule_add(struct prestera_switch *sw, + struct prestera_acl_rule *rule) +{ + int err; + struct prestera_acl_ruleset *ruleset = rule->ruleset; + struct prestera_flow_block *block = ruleset->ht_key.block; + + /* try to add rule to hash table first */ + err = rhashtable_insert_fast(&ruleset->rule_ht, &rule->ht_node, + prestera_acl_rule_ht_params); + if (err) + goto err_ht_insert; + + prestera_acl_rule_keymask_pcl_id_set(rule, ruleset->pcl_id); + rule->re_arg.vtcam_id = ruleset->vtcam_id; + rule->re_key.prio = rule->priority; + + rule->re = prestera_acl_rule_entry_find(sw->acl, &rule->re_key); + err = WARN_ON(rule->re) ? -EEXIST : 0; + if (err) + goto err_rule_add; + + rule->re = prestera_acl_rule_entry_create(sw->acl, &rule->re_key, + &rule->re_arg); + err = !rule->re ? -EINVAL : 0; + if (err) + goto err_rule_add; + + /* bind the block (all ports) to chain index 0, rest of + * the chains are bound to goto action + */ + if (!ruleset->ht_key.chain_index && !ruleset->rule_count) { + err = prestera_acl_ruleset_block_bind(ruleset, block); + if (err) + goto err_acl_block_bind; + } + + list_add_tail(&rule->list, &sw->acl->rules); + ruleset->rule_count++; + prestera_acl_ruleset_prio_update(ruleset, rule->priority); + return 0; + +err_acl_block_bind: + prestera_acl_rule_entry_destroy(sw->acl, rule->re); +err_rule_add: + rule->re = NULL; + rhashtable_remove_fast(&ruleset->rule_ht, &rule->ht_node, + prestera_acl_rule_ht_params); +err_ht_insert: + return err; +} + +void prestera_acl_rule_del(struct prestera_switch *sw, + struct prestera_acl_rule *rule) +{ + struct prestera_acl_ruleset *ruleset = rule->ruleset; + struct prestera_flow_block *block = ruleset->ht_key.block; + + rhashtable_remove_fast(&ruleset->rule_ht, &rule->ht_node, + prestera_acl_rule_ht_params); + ruleset->rule_count--; + list_del(&rule->list); + + prestera_acl_rule_entry_destroy(sw->acl, rule->re); + prestera_acl_ruleset_prio_refresh(sw->acl, ruleset); + + /* unbind block (all ports) */ + if (!ruleset->ht_key.chain_index && !ruleset->rule_count) + prestera_acl_ruleset_block_unbind(ruleset, block); +} + +int prestera_acl_rule_get_stats(struct prestera_acl *acl, + struct prestera_acl_rule *rule, + u64 *packets, u64 *bytes, u64 *last_use) +{ + u64 current_packets; + u64 current_bytes; + int err; + + err = prestera_counter_stats_get(acl->sw->counter, + rule->re->counter.block, + rule->re->counter.id, + ¤t_packets, ¤t_bytes); + if (err) + return err; + + *packets = current_packets; + *bytes = current_bytes; + *last_use = jiffies; + + return 0; +} + +struct prestera_acl_rule_entry * +prestera_acl_rule_entry_find(struct prestera_acl *acl, + struct prestera_acl_rule_entry_key *key) +{ + return rhashtable_lookup_fast(&acl->acl_rule_entry_ht, key, + __prestera_acl_rule_entry_ht_params); +} + +static int __prestera_acl_rule_entry2hw_del(struct prestera_switch *sw, + struct prestera_acl_rule_entry *e) +{ + return prestera_hw_vtcam_rule_del(sw, e->vtcam_id, e->hw_id); +} + +static int __prestera_acl_rule_entry2hw_add(struct prestera_switch *sw, + struct prestera_acl_rule_entry *e) +{ + struct prestera_acl_hw_action_info act_hw[PRESTERA_ACL_RULE_ACTION_MAX]; + int act_num; + + memset(&act_hw, 0, sizeof(act_hw)); + act_num = 0; + + /* accept */ + if (e->accept.valid) { + act_hw[act_num].id = PRESTERA_ACL_RULE_ACTION_ACCEPT; + act_num++; + } + /* drop */ + if (e->drop.valid) { + act_hw[act_num].id = PRESTERA_ACL_RULE_ACTION_DROP; + act_num++; + } + /* trap */ + if (e->trap.valid) { + act_hw[act_num].id = PRESTERA_ACL_RULE_ACTION_TRAP; + act_num++; + } + /* police */ + if (e->police.valid) { + act_hw[act_num].id = PRESTERA_ACL_RULE_ACTION_POLICE; + act_hw[act_num].police = e->police.i; + act_num++; + } + /* jump */ + if (e->jump.valid) { + act_hw[act_num].id = PRESTERA_ACL_RULE_ACTION_JUMP; + act_hw[act_num].jump = e->jump.i; + act_num++; + } + /* counter */ + if (e->counter.block) { + act_hw[act_num].id = PRESTERA_ACL_RULE_ACTION_COUNT; + act_hw[act_num].count.id = e->counter.id; + act_num++; + } + + return prestera_hw_vtcam_rule_add(sw, e->vtcam_id, e->key.prio, + e->key.match.key, e->key.match.mask, + act_hw, act_num, &e->hw_id); +} + +static void +__prestera_acl_rule_entry_act_destruct(struct prestera_switch *sw, + struct prestera_acl_rule_entry *e) +{ + /* counter */ + prestera_counter_put(sw->counter, e->counter.block, e->counter.id); + /* police */ + if (e->police.valid) + prestera_hw_policer_release(sw, e->police.i.id); +} + +void prestera_acl_rule_entry_destroy(struct prestera_acl *acl, + struct prestera_acl_rule_entry *e) +{ + int ret; + + rhashtable_remove_fast(&acl->acl_rule_entry_ht, &e->ht_node, + __prestera_acl_rule_entry_ht_params); + + ret = __prestera_acl_rule_entry2hw_del(acl->sw, e); + WARN_ON(ret && ret != -ENODEV); + + __prestera_acl_rule_entry_act_destruct(acl->sw, e); + kfree(e); +} + +static int +__prestera_acl_rule_entry_act_construct(struct prestera_switch *sw, + struct prestera_acl_rule_entry *e, + struct prestera_acl_rule_entry_arg *arg) +{ + int err; + + /* accept */ + e->accept.valid = arg->accept.valid; + /* drop */ + e->drop.valid = arg->drop.valid; + /* trap */ + e->trap.valid = arg->trap.valid; + /* jump */ + e->jump.valid = arg->jump.valid; + e->jump.i = arg->jump.i; + /* police */ + if (arg->police.valid) { + u8 type = arg->police.ingress ? PRESTERA_POLICER_TYPE_INGRESS : + PRESTERA_POLICER_TYPE_EGRESS; + + err = prestera_hw_policer_create(sw, type, &e->police.i.id); + if (err) + goto err_out; + + err = prestera_hw_policer_sr_tcm_set(sw, e->police.i.id, + arg->police.rate, + arg->police.burst); + if (err) { + prestera_hw_policer_release(sw, e->police.i.id); + goto err_out; + } + e->police.valid = arg->police.valid; + } + /* counter */ + if (arg->count.valid) { + err = prestera_counter_get(sw->counter, arg->count.client, + &e->counter.block, + &e->counter.id); + if (err) + goto err_out; + } + + return 0; + +err_out: + __prestera_acl_rule_entry_act_destruct(sw, e); + return -EINVAL; +} + +struct prestera_acl_rule_entry * +prestera_acl_rule_entry_create(struct prestera_acl *acl, + struct prestera_acl_rule_entry_key *key, + struct prestera_acl_rule_entry_arg *arg) +{ + struct prestera_acl_rule_entry *e; + int err; + + e = kzalloc(sizeof(*e), GFP_KERNEL); + if (!e) + goto err_kzalloc; + + memcpy(&e->key, key, sizeof(*key)); + e->vtcam_id = arg->vtcam_id; + err = __prestera_acl_rule_entry_act_construct(acl->sw, e, arg); + if (err) + goto err_act_construct; + + err = __prestera_acl_rule_entry2hw_add(acl->sw, e); + if (err) + goto err_hw_add; + + err = rhashtable_insert_fast(&acl->acl_rule_entry_ht, &e->ht_node, + __prestera_acl_rule_entry_ht_params); + if (err) + goto err_ht_insert; + + return e; + +err_ht_insert: + WARN_ON(__prestera_acl_rule_entry2hw_del(acl->sw, e)); +err_hw_add: + __prestera_acl_rule_entry_act_destruct(acl->sw, e); +err_act_construct: + kfree(e); +err_kzalloc: + return NULL; +} + +static int __prestera_acl_vtcam_id_try_fit(struct prestera_acl *acl, u8 lookup, + void *keymask, u32 *vtcam_id) +{ + struct prestera_acl_vtcam *vtcam; + int i; + + list_for_each_entry(vtcam, &acl->vtcam_list, list) { + if (lookup != vtcam->lookup) + continue; + + if (!keymask && !vtcam->is_keymask_set) + goto vtcam_found; + + if (!(keymask && vtcam->is_keymask_set)) + continue; + + /* try to fit with vtcam keymask */ + for (i = 0; i < __PRESTERA_ACL_RULE_MATCH_TYPE_MAX; i++) { + __be32 __keymask = ((__be32 *)keymask)[i]; + + if (!__keymask) + /* vtcam keymask in not interested */ + continue; + + if (__keymask & ~vtcam->keymask[i]) + /* keymask does not fit the vtcam keymask */ + break; + } + + if (i == __PRESTERA_ACL_RULE_MATCH_TYPE_MAX) + /* keymask fits vtcam keymask, return it */ + goto vtcam_found; + } + + /* nothing is found */ + return -ENOENT; + +vtcam_found: + refcount_inc(&vtcam->refcount); + *vtcam_id = vtcam->id; + return 0; +} + +int prestera_acl_vtcam_id_get(struct prestera_acl *acl, u8 lookup, u8 dir, + void *keymask, u32 *vtcam_id) +{ + struct prestera_acl_vtcam *vtcam; + u32 new_vtcam_id; + int err; + + /* find the vtcam that suits keymask. We do not expect to have + * a big number of vtcams, so, the list type for vtcam list is + * fine for now + */ + list_for_each_entry(vtcam, &acl->vtcam_list, list) { + if (lookup != vtcam->lookup || + dir != vtcam->direction) + continue; + + if (!keymask && !vtcam->is_keymask_set) { + refcount_inc(&vtcam->refcount); + goto vtcam_found; + } + + if (keymask && vtcam->is_keymask_set && + !memcmp(keymask, vtcam->keymask, sizeof(vtcam->keymask))) { + refcount_inc(&vtcam->refcount); + goto vtcam_found; + } + } + + /* vtcam not found, try to create new one */ + vtcam = kzalloc(sizeof(*vtcam), GFP_KERNEL); + if (!vtcam) + return -ENOMEM; + + err = prestera_hw_vtcam_create(acl->sw, lookup, keymask, &new_vtcam_id, + dir); + if (err) { + kfree(vtcam); + + /* cannot create new, try to fit into existing vtcam */ + if (__prestera_acl_vtcam_id_try_fit(acl, lookup, + keymask, &new_vtcam_id)) + return err; + + *vtcam_id = new_vtcam_id; + return 0; + } + + vtcam->direction = dir; + vtcam->id = new_vtcam_id; + vtcam->lookup = lookup; + if (keymask) { + memcpy(vtcam->keymask, keymask, sizeof(vtcam->keymask)); + vtcam->is_keymask_set = true; + } + refcount_set(&vtcam->refcount, 1); + list_add_rcu(&vtcam->list, &acl->vtcam_list); + +vtcam_found: + *vtcam_id = vtcam->id; + return 0; +} + +int prestera_acl_vtcam_id_put(struct prestera_acl *acl, u32 vtcam_id) +{ + struct prestera_acl_vtcam *vtcam; + int err; + + list_for_each_entry(vtcam, &acl->vtcam_list, list) { + if (vtcam_id != vtcam->id) + continue; + + if (!refcount_dec_and_test(&vtcam->refcount)) + return 0; + + err = prestera_hw_vtcam_destroy(acl->sw, vtcam->id); + if (err && err != -ENODEV) { + refcount_set(&vtcam->refcount, 1); + return err; + } + + list_del(&vtcam->list); + kfree(vtcam); + return 0; + } + + return -ENOENT; +} + +int prestera_acl_init(struct prestera_switch *sw) +{ + struct prestera_acl *acl; + int err; + + acl = kzalloc(sizeof(*acl), GFP_KERNEL); + if (!acl) + return -ENOMEM; + + acl->sw = sw; + INIT_LIST_HEAD(&acl->rules); + INIT_LIST_HEAD(&acl->vtcam_list); + idr_init(&acl->uid); + + err = rhashtable_init(&acl->acl_rule_entry_ht, + &__prestera_acl_rule_entry_ht_params); + if (err) + goto err_acl_rule_entry_ht_init; + + err = rhashtable_init(&acl->ruleset_ht, + &prestera_acl_ruleset_ht_params); + if (err) + goto err_ruleset_ht_init; + + sw->acl = acl; + + return 0; + +err_ruleset_ht_init: + rhashtable_destroy(&acl->acl_rule_entry_ht); +err_acl_rule_entry_ht_init: + kfree(acl); + return err; +} + +void prestera_acl_fini(struct prestera_switch *sw) +{ + struct prestera_acl *acl = sw->acl; + + WARN_ON(!idr_is_empty(&acl->uid)); + idr_destroy(&acl->uid); + + WARN_ON(!list_empty(&acl->vtcam_list)); + WARN_ON(!list_empty(&acl->rules)); + + rhashtable_destroy(&acl->ruleset_ht); + rhashtable_destroy(&acl->acl_rule_entry_ht); + + kfree(acl); +} diff --git a/drivers/net/ethernet/marvell/prestera/prestera_acl.h b/drivers/net/ethernet/marvell/prestera/prestera_acl.h new file mode 100644 index 000000000..a35cc0609 --- /dev/null +++ b/drivers/net/ethernet/marvell/prestera/prestera_acl.h @@ -0,0 +1,209 @@ +/* SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0 */ +/* Copyright (c) 2020-2021 Marvell International Ltd. All rights reserved. */ + +#ifndef _PRESTERA_ACL_H_ +#define _PRESTERA_ACL_H_ + +#include <linux/types.h> +#include "prestera_counter.h" + +#define PRESTERA_ACL_KEYMASK_PCL_ID 0x3FF +#define PRESTERA_ACL_KEYMASK_PCL_ID_USER \ + (PRESTERA_ACL_KEYMASK_PCL_ID & 0x00FF) +#define PRESTERA_ACL_KEYMASK_PCL_ID_CHAIN \ + (PRESTERA_ACL_KEYMASK_PCL_ID & 0xFF00) +#define PRESTERA_ACL_CHAIN_MASK \ + (PRESTERA_ACL_KEYMASK_PCL_ID >> 8) + +#define PRESTERA_ACL_PCL_ID_MAKE(uid, chain_id) \ + (((uid) & PRESTERA_ACL_KEYMASK_PCL_ID_USER) | \ + (((chain_id) << 8) & PRESTERA_ACL_KEYMASK_PCL_ID_CHAIN)) + +#define rule_match_set_n(match_p, type, val_p, size) \ + memcpy(&(match_p)[PRESTERA_ACL_RULE_MATCH_TYPE_##type], \ + val_p, size) +#define rule_match_set(match_p, type, val) \ + memcpy(&(match_p)[PRESTERA_ACL_RULE_MATCH_TYPE_##type], \ + &(val), sizeof(val)) + +enum prestera_acl_match_type { + PRESTERA_ACL_RULE_MATCH_TYPE_PCL_ID, + PRESTERA_ACL_RULE_MATCH_TYPE_ETH_TYPE, + PRESTERA_ACL_RULE_MATCH_TYPE_ETH_DMAC_0, + PRESTERA_ACL_RULE_MATCH_TYPE_ETH_DMAC_1, + PRESTERA_ACL_RULE_MATCH_TYPE_ETH_SMAC_0, + PRESTERA_ACL_RULE_MATCH_TYPE_ETH_SMAC_1, + PRESTERA_ACL_RULE_MATCH_TYPE_IP_PROTO, + PRESTERA_ACL_RULE_MATCH_TYPE_SYS_PORT, + PRESTERA_ACL_RULE_MATCH_TYPE_SYS_DEV, + PRESTERA_ACL_RULE_MATCH_TYPE_IP_SRC, + PRESTERA_ACL_RULE_MATCH_TYPE_IP_DST, + PRESTERA_ACL_RULE_MATCH_TYPE_L4_PORT_SRC, + PRESTERA_ACL_RULE_MATCH_TYPE_L4_PORT_DST, + PRESTERA_ACL_RULE_MATCH_TYPE_L4_PORT_RANGE_SRC, + PRESTERA_ACL_RULE_MATCH_TYPE_L4_PORT_RANGE_DST, + PRESTERA_ACL_RULE_MATCH_TYPE_VLAN_ID, + PRESTERA_ACL_RULE_MATCH_TYPE_VLAN_TPID, + PRESTERA_ACL_RULE_MATCH_TYPE_ICMP_TYPE, + PRESTERA_ACL_RULE_MATCH_TYPE_ICMP_CODE, + + __PRESTERA_ACL_RULE_MATCH_TYPE_MAX +}; + +enum prestera_acl_rule_action { + PRESTERA_ACL_RULE_ACTION_ACCEPT = 0, + PRESTERA_ACL_RULE_ACTION_DROP = 1, + PRESTERA_ACL_RULE_ACTION_TRAP = 2, + PRESTERA_ACL_RULE_ACTION_JUMP = 5, + PRESTERA_ACL_RULE_ACTION_COUNT = 7, + PRESTERA_ACL_RULE_ACTION_POLICE = 8, + + PRESTERA_ACL_RULE_ACTION_MAX +}; + +enum { + PRESTERA_ACL_IFACE_TYPE_PORT, + PRESTERA_ACL_IFACE_TYPE_INDEX +}; + +struct prestera_acl_match { + __be32 key[__PRESTERA_ACL_RULE_MATCH_TYPE_MAX]; + __be32 mask[__PRESTERA_ACL_RULE_MATCH_TYPE_MAX]; +}; + +struct prestera_acl_action_jump { + u32 index; +}; + +struct prestera_acl_action_police { + u32 id; +}; + +struct prestera_acl_action_count { + u32 id; +}; + +struct prestera_acl_rule_entry_key { + u32 prio; + struct prestera_acl_match match; +}; + +struct prestera_acl_hw_action_info { + enum prestera_acl_rule_action id; + union { + struct prestera_acl_action_police police; + struct prestera_acl_action_count count; + struct prestera_acl_action_jump jump; + }; +}; + +/* This struct (arg) used only to be passed as parameter for + * acl_rule_entry_create. Must be flat. Can contain object keys, which will be + * resolved to object links, before saving to acl_rule_entry struct + */ +struct prestera_acl_rule_entry_arg { + u32 vtcam_id; + struct { + struct { + u8 valid:1; + } accept, drop, trap; + struct { + struct prestera_acl_action_jump i; + u8 valid:1; + } jump; + struct { + u8 valid:1; + u64 rate; + u64 burst; + bool ingress; + } police; + struct { + u8 valid:1; + u32 client; + } count; + }; +}; + +struct prestera_acl_rule { + struct rhash_head ht_node; /* Member of acl HT */ + struct list_head list; + struct prestera_acl_ruleset *ruleset; + struct prestera_acl_ruleset *jump_ruleset; + unsigned long cookie; + u32 chain_index; + u32 priority; + struct prestera_acl_rule_entry_key re_key; + struct prestera_acl_rule_entry_arg re_arg; + struct prestera_acl_rule_entry *re; +}; + +struct prestera_acl_iface { + union { + struct prestera_port *port; + u32 index; + }; + u8 type; +}; + +struct prestera_acl; +struct prestera_switch; +struct prestera_flow_block; + +int prestera_acl_init(struct prestera_switch *sw); +void prestera_acl_fini(struct prestera_switch *sw); + +struct prestera_acl_rule * +prestera_acl_rule_create(struct prestera_acl_ruleset *ruleset, + unsigned long cookie, u32 chain_index); +void prestera_acl_rule_priority_set(struct prestera_acl_rule *rule, + u32 priority); +void prestera_acl_rule_destroy(struct prestera_acl_rule *rule); +struct prestera_acl_rule * +prestera_acl_rule_lookup(struct prestera_acl_ruleset *ruleset, + unsigned long cookie); +int prestera_acl_rule_add(struct prestera_switch *sw, + struct prestera_acl_rule *rule); +void prestera_acl_rule_del(struct prestera_switch *sw, + struct prestera_acl_rule *rule); +int prestera_acl_rule_get_stats(struct prestera_acl *acl, + struct prestera_acl_rule *rule, + u64 *packets, u64 *bytes, u64 *last_use); +struct prestera_acl_rule_entry * +prestera_acl_rule_entry_find(struct prestera_acl *acl, + struct prestera_acl_rule_entry_key *key); +void prestera_acl_rule_entry_destroy(struct prestera_acl *acl, + struct prestera_acl_rule_entry *e); +struct prestera_acl_rule_entry * +prestera_acl_rule_entry_create(struct prestera_acl *acl, + struct prestera_acl_rule_entry_key *key, + struct prestera_acl_rule_entry_arg *arg); +struct prestera_acl_ruleset * +prestera_acl_ruleset_get(struct prestera_acl *acl, + struct prestera_flow_block *block, + u32 chain_index); +struct prestera_acl_ruleset * +prestera_acl_ruleset_lookup(struct prestera_acl *acl, + struct prestera_flow_block *block, + u32 chain_index); +int prestera_acl_ruleset_keymask_set(struct prestera_acl_ruleset *ruleset, + void *keymask); +bool prestera_acl_ruleset_is_offload(struct prestera_acl_ruleset *ruleset); +int prestera_acl_ruleset_offload(struct prestera_acl_ruleset *ruleset); +void prestera_acl_ruleset_put(struct prestera_acl_ruleset *ruleset); +int prestera_acl_ruleset_bind(struct prestera_acl_ruleset *ruleset, + struct prestera_port *port); +int prestera_acl_ruleset_unbind(struct prestera_acl_ruleset *ruleset, + struct prestera_port *port); +u32 prestera_acl_ruleset_index_get(const struct prestera_acl_ruleset *ruleset); +void prestera_acl_ruleset_prio_get(struct prestera_acl_ruleset *ruleset, + u32 *prio_min, u32 *prio_max); +void +prestera_acl_rule_keymask_pcl_id_set(struct prestera_acl_rule *rule, + u16 pcl_id); + +int prestera_acl_vtcam_id_get(struct prestera_acl *acl, u8 lookup, u8 dir, + void *keymask, u32 *vtcam_id); +int prestera_acl_vtcam_id_put(struct prestera_acl *acl, u32 vtcam_id); +int prestera_acl_chain_to_client(u32 chain_index, bool ingress, u32 *client); + +#endif /* _PRESTERA_ACL_H_ */ diff --git a/drivers/net/ethernet/marvell/prestera/prestera_counter.c b/drivers/net/ethernet/marvell/prestera/prestera_counter.c new file mode 100644 index 000000000..4cd53a2da --- /dev/null +++ b/drivers/net/ethernet/marvell/prestera/prestera_counter.c @@ -0,0 +1,475 @@ +// SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0 +/* Copyright (c) 2021 Marvell International Ltd. All rights reserved */ + +#include "prestera.h" +#include "prestera_hw.h" +#include "prestera_acl.h" +#include "prestera_counter.h" + +#define COUNTER_POLL_TIME (msecs_to_jiffies(1000)) +#define COUNTER_RESCHED_TIME (msecs_to_jiffies(50)) +#define COUNTER_BULK_SIZE (256) + +struct prestera_counter { + struct prestera_switch *sw; + struct delayed_work stats_dw; + struct mutex mtx; /* protect block_list */ + struct prestera_counter_block **block_list; + u32 total_read; + u32 block_list_len; + u32 curr_idx; + bool is_fetching; +}; + +struct prestera_counter_block { + struct list_head list; + u32 id; + u32 offset; + u32 num_counters; + u32 client; + struct idr counter_idr; + refcount_t refcnt; + struct mutex mtx; /* protect stats and counter_idr */ + struct prestera_counter_stats *stats; + u8 *counter_flag; + bool is_updating; + bool full; +}; + +enum { + COUNTER_FLAG_READY = 0, + COUNTER_FLAG_INVALID = 1 +}; + +static bool +prestera_counter_is_ready(struct prestera_counter_block *block, u32 id) +{ + return block->counter_flag[id - block->offset] == COUNTER_FLAG_READY; +} + +static void prestera_counter_lock(struct prestera_counter *counter) +{ + mutex_lock(&counter->mtx); +} + +static void prestera_counter_unlock(struct prestera_counter *counter) +{ + mutex_unlock(&counter->mtx); +} + +static void prestera_counter_block_lock(struct prestera_counter_block *block) +{ + mutex_lock(&block->mtx); +} + +static void prestera_counter_block_unlock(struct prestera_counter_block *block) +{ + mutex_unlock(&block->mtx); +} + +static bool prestera_counter_block_incref(struct prestera_counter_block *block) +{ + return refcount_inc_not_zero(&block->refcnt); +} + +static bool prestera_counter_block_decref(struct prestera_counter_block *block) +{ + return refcount_dec_and_test(&block->refcnt); +} + +/* must be called with prestera_counter_block_lock() */ +static void prestera_counter_stats_clear(struct prestera_counter_block *block, + u32 counter_id) +{ + memset(&block->stats[counter_id - block->offset], 0, + sizeof(*block->stats)); +} + +static struct prestera_counter_block * +prestera_counter_block_lookup_not_full(struct prestera_counter *counter, + u32 client) +{ + u32 i; + + prestera_counter_lock(counter); + for (i = 0; i < counter->block_list_len; i++) { + if (counter->block_list[i] && + counter->block_list[i]->client == client && + !counter->block_list[i]->full && + prestera_counter_block_incref(counter->block_list[i])) { + prestera_counter_unlock(counter); + return counter->block_list[i]; + } + } + prestera_counter_unlock(counter); + + return NULL; +} + +static int prestera_counter_block_list_add(struct prestera_counter *counter, + struct prestera_counter_block *block) +{ + struct prestera_counter_block **arr; + u32 i; + + prestera_counter_lock(counter); + + for (i = 0; i < counter->block_list_len; i++) { + if (counter->block_list[i]) + continue; + + counter->block_list[i] = block; + prestera_counter_unlock(counter); + return 0; + } + + arr = krealloc(counter->block_list, (counter->block_list_len + 1) * + sizeof(*counter->block_list), GFP_KERNEL); + if (!arr) { + prestera_counter_unlock(counter); + return -ENOMEM; + } + + counter->block_list = arr; + counter->block_list[counter->block_list_len] = block; + counter->block_list_len++; + prestera_counter_unlock(counter); + return 0; +} + +static struct prestera_counter_block * +prestera_counter_block_get(struct prestera_counter *counter, u32 client) +{ + struct prestera_counter_block *block; + int err; + + block = prestera_counter_block_lookup_not_full(counter, client); + if (block) + return block; + + block = kzalloc(sizeof(*block), GFP_KERNEL); + if (!block) + return ERR_PTR(-ENOMEM); + + err = prestera_hw_counter_block_get(counter->sw, client, + &block->id, &block->offset, + &block->num_counters); + if (err) + goto err_block; + + block->stats = kcalloc(block->num_counters, + sizeof(*block->stats), GFP_KERNEL); + if (!block->stats) { + err = -ENOMEM; + goto err_stats; + } + + block->counter_flag = kcalloc(block->num_counters, + sizeof(*block->counter_flag), + GFP_KERNEL); + if (!block->counter_flag) { + err = -ENOMEM; + goto err_flag; + } + + block->client = client; + mutex_init(&block->mtx); + refcount_set(&block->refcnt, 1); + idr_init_base(&block->counter_idr, block->offset); + + err = prestera_counter_block_list_add(counter, block); + if (err) + goto err_list_add; + + return block; + +err_list_add: + idr_destroy(&block->counter_idr); + mutex_destroy(&block->mtx); + kfree(block->counter_flag); +err_flag: + kfree(block->stats); +err_stats: + prestera_hw_counter_block_release(counter->sw, block->id); +err_block: + kfree(block); + return ERR_PTR(err); +} + +static void prestera_counter_block_put(struct prestera_counter *counter, + struct prestera_counter_block *block) +{ + u32 i; + + if (!prestera_counter_block_decref(block)) + return; + + prestera_counter_lock(counter); + for (i = 0; i < counter->block_list_len; i++) { + if (counter->block_list[i] && + counter->block_list[i]->id == block->id) { + counter->block_list[i] = NULL; + break; + } + } + prestera_counter_unlock(counter); + + WARN_ON(!idr_is_empty(&block->counter_idr)); + + prestera_hw_counter_block_release(counter->sw, block->id); + idr_destroy(&block->counter_idr); + mutex_destroy(&block->mtx); + kfree(block->stats); + kfree(block); +} + +static int prestera_counter_get_vacant(struct prestera_counter_block *block, + u32 *id) +{ + int free_id; + + if (block->full) + return -ENOSPC; + + prestera_counter_block_lock(block); + free_id = idr_alloc_cyclic(&block->counter_idr, NULL, block->offset, + block->offset + block->num_counters, + GFP_KERNEL); + if (free_id < 0) { + if (free_id == -ENOSPC) + block->full = true; + + prestera_counter_block_unlock(block); + return free_id; + } + *id = free_id; + prestera_counter_block_unlock(block); + + return 0; +} + +int prestera_counter_get(struct prestera_counter *counter, u32 client, + struct prestera_counter_block **bl, u32 *counter_id) +{ + struct prestera_counter_block *block; + int err; + u32 id; + +get_next_block: + block = prestera_counter_block_get(counter, client); + if (IS_ERR(block)) + return PTR_ERR(block); + + err = prestera_counter_get_vacant(block, &id); + if (err) { + prestera_counter_block_put(counter, block); + + if (err == -ENOSPC) + goto get_next_block; + + return err; + } + + prestera_counter_block_lock(block); + if (block->is_updating) + block->counter_flag[id - block->offset] = COUNTER_FLAG_INVALID; + prestera_counter_block_unlock(block); + + *counter_id = id; + *bl = block; + + return 0; +} + +void prestera_counter_put(struct prestera_counter *counter, + struct prestera_counter_block *block, u32 counter_id) +{ + if (!block) + return; + + prestera_counter_block_lock(block); + idr_remove(&block->counter_idr, counter_id); + block->full = false; + prestera_counter_stats_clear(block, counter_id); + prestera_counter_block_unlock(block); + + prestera_hw_counter_clear(counter->sw, block->id, counter_id); + prestera_counter_block_put(counter, block); +} + +static u32 prestera_counter_block_idx_next(struct prestera_counter *counter, + u32 curr_idx) +{ + u32 idx, i, start = curr_idx + 1; + + prestera_counter_lock(counter); + for (i = 0; i < counter->block_list_len; i++) { + idx = (start + i) % counter->block_list_len; + if (!counter->block_list[idx]) + continue; + + prestera_counter_unlock(counter); + return idx; + } + prestera_counter_unlock(counter); + + return 0; +} + +static struct prestera_counter_block * +prestera_counter_block_get_by_idx(struct prestera_counter *counter, u32 idx) +{ + if (idx >= counter->block_list_len) + return NULL; + + prestera_counter_lock(counter); + + if (!counter->block_list[idx] || + !prestera_counter_block_incref(counter->block_list[idx])) { + prestera_counter_unlock(counter); + return NULL; + } + + prestera_counter_unlock(counter); + return counter->block_list[idx]; +} + +static void prestera_counter_stats_work(struct work_struct *work) +{ + struct delayed_work *dl_work = + container_of(work, struct delayed_work, work); + struct prestera_counter *counter = + container_of(dl_work, struct prestera_counter, stats_dw); + struct prestera_counter_block *block; + u32 resched_time = COUNTER_POLL_TIME; + u32 count = COUNTER_BULK_SIZE; + bool done = false; + int err; + u32 i; + + block = prestera_counter_block_get_by_idx(counter, counter->curr_idx); + if (!block) { + if (counter->is_fetching) + goto abort; + + goto next; + } + + if (!counter->is_fetching) { + err = prestera_hw_counter_trigger(counter->sw, block->id); + if (err) + goto abort; + + prestera_counter_block_lock(block); + block->is_updating = true; + prestera_counter_block_unlock(block); + + counter->is_fetching = true; + counter->total_read = 0; + resched_time = COUNTER_RESCHED_TIME; + goto resched; + } + + prestera_counter_block_lock(block); + err = prestera_hw_counters_get(counter->sw, counter->total_read, + &count, &done, + &block->stats[counter->total_read]); + prestera_counter_block_unlock(block); + if (err) + goto abort; + + counter->total_read += count; + if (!done || counter->total_read < block->num_counters) { + resched_time = COUNTER_RESCHED_TIME; + goto resched; + } + + for (i = 0; i < block->num_counters; i++) { + if (block->counter_flag[i] == COUNTER_FLAG_INVALID) { + prestera_counter_block_lock(block); + block->counter_flag[i] = COUNTER_FLAG_READY; + memset(&block->stats[i], 0, sizeof(*block->stats)); + prestera_counter_block_unlock(block); + } + } + + prestera_counter_block_lock(block); + block->is_updating = false; + prestera_counter_block_unlock(block); + + goto next; +abort: + prestera_hw_counter_abort(counter->sw); +next: + counter->is_fetching = false; + counter->curr_idx = + prestera_counter_block_idx_next(counter, counter->curr_idx); +resched: + if (block) + prestera_counter_block_put(counter, block); + + schedule_delayed_work(&counter->stats_dw, resched_time); +} + +/* Can be executed without rtnl_lock(). + * So pay attention when something changing. + */ +int prestera_counter_stats_get(struct prestera_counter *counter, + struct prestera_counter_block *block, + u32 counter_id, u64 *packets, u64 *bytes) +{ + if (!block || !prestera_counter_is_ready(block, counter_id)) { + *packets = 0; + *bytes = 0; + return 0; + } + + prestera_counter_block_lock(block); + *packets = block->stats[counter_id - block->offset].packets; + *bytes = block->stats[counter_id - block->offset].bytes; + + prestera_counter_stats_clear(block, counter_id); + prestera_counter_block_unlock(block); + + return 0; +} + +int prestera_counter_init(struct prestera_switch *sw) +{ + struct prestera_counter *counter; + + counter = kzalloc(sizeof(*counter), GFP_KERNEL); + if (!counter) + return -ENOMEM; + + counter->block_list = kzalloc(sizeof(*counter->block_list), GFP_KERNEL); + if (!counter->block_list) { + kfree(counter); + return -ENOMEM; + } + + mutex_init(&counter->mtx); + counter->block_list_len = 1; + counter->sw = sw; + sw->counter = counter; + + INIT_DELAYED_WORK(&counter->stats_dw, prestera_counter_stats_work); + schedule_delayed_work(&counter->stats_dw, COUNTER_POLL_TIME); + + return 0; +} + +void prestera_counter_fini(struct prestera_switch *sw) +{ + struct prestera_counter *counter = sw->counter; + u32 i; + + cancel_delayed_work_sync(&counter->stats_dw); + + for (i = 0; i < counter->block_list_len; i++) + WARN_ON(counter->block_list[i]); + + mutex_destroy(&counter->mtx); + kfree(counter->block_list); + kfree(counter); +} diff --git a/drivers/net/ethernet/marvell/prestera/prestera_counter.h b/drivers/net/ethernet/marvell/prestera/prestera_counter.h new file mode 100644 index 000000000..ad6b73907 --- /dev/null +++ b/drivers/net/ethernet/marvell/prestera/prestera_counter.h @@ -0,0 +1,30 @@ +/* SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0 */ +/* Copyright (c) 2021 Marvell International Ltd. All rights reserved. */ + +#ifndef _PRESTERA_COUNTER_H_ +#define _PRESTERA_COUNTER_H_ + +#include <linux/types.h> + +struct prestera_counter_stats { + u64 packets; + u64 bytes; +}; + +struct prestera_switch; +struct prestera_counter; +struct prestera_counter_block; + +int prestera_counter_init(struct prestera_switch *sw); +void prestera_counter_fini(struct prestera_switch *sw); + +int prestera_counter_get(struct prestera_counter *counter, u32 client, + struct prestera_counter_block **block, + u32 *counter_id); +void prestera_counter_put(struct prestera_counter *counter, + struct prestera_counter_block *block, u32 counter_id); +int prestera_counter_stats_get(struct prestera_counter *counter, + struct prestera_counter_block *block, + u32 counter_id, u64 *packets, u64 *bytes); + +#endif /* _PRESTERA_COUNTER_H_ */ diff --git a/drivers/net/ethernet/marvell/prestera/prestera_devlink.c b/drivers/net/ethernet/marvell/prestera/prestera_devlink.c new file mode 100644 index 000000000..06279cd6d --- /dev/null +++ b/drivers/net/ethernet/marvell/prestera/prestera_devlink.c @@ -0,0 +1,620 @@ +// SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0 +/* Copyright (c) 2019-2020 Marvell International Ltd. All rights reserved */ + +#include <net/devlink.h> + +#include "prestera_devlink.h" +#include "prestera_hw.h" + +/* All driver-specific traps must be documented in + * Documentation/networking/devlink/prestera.rst + */ +enum { + DEVLINK_PRESTERA_TRAP_ID_BASE = DEVLINK_TRAP_GENERIC_ID_MAX, + DEVLINK_PRESTERA_TRAP_ID_ARP_BC, + DEVLINK_PRESTERA_TRAP_ID_IS_IS, + DEVLINK_PRESTERA_TRAP_ID_OSPF, + DEVLINK_PRESTERA_TRAP_ID_IP_BC_MAC, + DEVLINK_PRESTERA_TRAP_ID_ROUTER_MC, + DEVLINK_PRESTERA_TRAP_ID_VRRP, + DEVLINK_PRESTERA_TRAP_ID_DHCP, + DEVLINK_PRESTERA_TRAP_ID_MAC_TO_ME, + DEVLINK_PRESTERA_TRAP_ID_IPV4_OPTIONS, + DEVLINK_PRESTERA_TRAP_ID_IP_DEFAULT_ROUTE, + DEVLINK_PRESTERA_TRAP_ID_IP_TO_ME, + DEVLINK_PRESTERA_TRAP_ID_IPV4_ICMP_REDIRECT, + DEVLINK_PRESTERA_TRAP_ID_ACL_CODE_0, + DEVLINK_PRESTERA_TRAP_ID_ACL_CODE_1, + DEVLINK_PRESTERA_TRAP_ID_ACL_CODE_2, + DEVLINK_PRESTERA_TRAP_ID_ACL_CODE_3, + DEVLINK_PRESTERA_TRAP_ID_ACL_CODE_4, + DEVLINK_PRESTERA_TRAP_ID_ACL_CODE_5, + DEVLINK_PRESTERA_TRAP_ID_ACL_CODE_6, + DEVLINK_PRESTERA_TRAP_ID_ACL_CODE_7, + DEVLINK_PRESTERA_TRAP_ID_BGP, + DEVLINK_PRESTERA_TRAP_ID_SSH, + DEVLINK_PRESTERA_TRAP_ID_TELNET, + DEVLINK_PRESTERA_TRAP_ID_ICMP, + DEVLINK_PRESTERA_TRAP_ID_MET_RED, + DEVLINK_PRESTERA_TRAP_ID_IP_SIP_IS_ZERO, + DEVLINK_PRESTERA_TRAP_ID_IP_UC_DIP_DA_MISMATCH, + DEVLINK_PRESTERA_TRAP_ID_ILLEGAL_IPV4_HDR, + DEVLINK_PRESTERA_TRAP_ID_ILLEGAL_IP_ADDR, + DEVLINK_PRESTERA_TRAP_ID_INVALID_SA, + DEVLINK_PRESTERA_TRAP_ID_LOCAL_PORT, + DEVLINK_PRESTERA_TRAP_ID_PORT_NO_VLAN, + DEVLINK_PRESTERA_TRAP_ID_RXDMA_DROP, +}; + +#define DEVLINK_PRESTERA_TRAP_NAME_ARP_BC \ + "arp_bc" +#define DEVLINK_PRESTERA_TRAP_NAME_IS_IS \ + "is_is" +#define DEVLINK_PRESTERA_TRAP_NAME_OSPF \ + "ospf" +#define DEVLINK_PRESTERA_TRAP_NAME_IP_BC_MAC \ + "ip_bc_mac" +#define DEVLINK_PRESTERA_TRAP_NAME_ROUTER_MC \ + "router_mc" +#define DEVLINK_PRESTERA_TRAP_NAME_VRRP \ + "vrrp" +#define DEVLINK_PRESTERA_TRAP_NAME_DHCP \ + "dhcp" +#define DEVLINK_PRESTERA_TRAP_NAME_MAC_TO_ME \ + "mac_to_me" +#define DEVLINK_PRESTERA_TRAP_NAME_IPV4_OPTIONS \ + "ipv4_options" +#define DEVLINK_PRESTERA_TRAP_NAME_IP_DEFAULT_ROUTE \ + "ip_default_route" +#define DEVLINK_PRESTERA_TRAP_NAME_IP_TO_ME \ + "ip_to_me" +#define DEVLINK_PRESTERA_TRAP_NAME_IPV4_ICMP_REDIRECT \ + "ipv4_icmp_redirect" +#define DEVLINK_PRESTERA_TRAP_NAME_ACL_CODE_0 \ + "acl_code_0" +#define DEVLINK_PRESTERA_TRAP_NAME_ACL_CODE_1 \ + "acl_code_1" +#define DEVLINK_PRESTERA_TRAP_NAME_ACL_CODE_2 \ + "acl_code_2" +#define DEVLINK_PRESTERA_TRAP_NAME_ACL_CODE_3 \ + "acl_code_3" +#define DEVLINK_PRESTERA_TRAP_NAME_ACL_CODE_4 \ + "acl_code_4" +#define DEVLINK_PRESTERA_TRAP_NAME_ACL_CODE_5 \ + "acl_code_5" +#define DEVLINK_PRESTERA_TRAP_NAME_ACL_CODE_6 \ + "acl_code_6" +#define DEVLINK_PRESTERA_TRAP_NAME_ACL_CODE_7 \ + "acl_code_7" +#define DEVLINK_PRESTERA_TRAP_NAME_BGP \ + "bgp" +#define DEVLINK_PRESTERA_TRAP_NAME_SSH \ + "ssh" +#define DEVLINK_PRESTERA_TRAP_NAME_TELNET \ + "telnet" +#define DEVLINK_PRESTERA_TRAP_NAME_ICMP \ + "icmp" +#define DEVLINK_PRESTERA_TRAP_NAME_RXDMA_DROP \ + "rxdma_drop" +#define DEVLINK_PRESTERA_TRAP_NAME_PORT_NO_VLAN \ + "port_no_vlan" +#define DEVLINK_PRESTERA_TRAP_NAME_LOCAL_PORT \ + "local_port" +#define DEVLINK_PRESTERA_TRAP_NAME_INVALID_SA \ + "invalid_sa" +#define DEVLINK_PRESTERA_TRAP_NAME_ILLEGAL_IP_ADDR \ + "illegal_ip_addr" +#define DEVLINK_PRESTERA_TRAP_NAME_ILLEGAL_IPV4_HDR \ + "illegal_ipv4_hdr" +#define DEVLINK_PRESTERA_TRAP_NAME_IP_UC_DIP_DA_MISMATCH \ + "ip_uc_dip_da_mismatch" +#define DEVLINK_PRESTERA_TRAP_NAME_IP_SIP_IS_ZERO \ + "ip_sip_is_zero" +#define DEVLINK_PRESTERA_TRAP_NAME_MET_RED \ + "met_red" + +struct prestera_trap { + struct devlink_trap trap; + u8 cpu_code; +}; + +struct prestera_trap_item { + enum devlink_trap_action action; + void *trap_ctx; +}; + +struct prestera_trap_data { + struct prestera_switch *sw; + struct prestera_trap_item *trap_items_arr; + u32 traps_count; +}; + +#define PRESTERA_TRAP_METADATA DEVLINK_TRAP_METADATA_TYPE_F_IN_PORT + +#define PRESTERA_TRAP_CONTROL(_id, _group_id, _action) \ + DEVLINK_TRAP_GENERIC(CONTROL, _action, _id, \ + DEVLINK_TRAP_GROUP_GENERIC_ID_##_group_id, \ + PRESTERA_TRAP_METADATA) + +#define PRESTERA_TRAP_DRIVER_CONTROL(_id, _group_id) \ + DEVLINK_TRAP_DRIVER(CONTROL, TRAP, DEVLINK_PRESTERA_TRAP_ID_##_id, \ + DEVLINK_PRESTERA_TRAP_NAME_##_id, \ + DEVLINK_TRAP_GROUP_GENERIC_ID_##_group_id, \ + PRESTERA_TRAP_METADATA) + +#define PRESTERA_TRAP_EXCEPTION(_id, _group_id) \ + DEVLINK_TRAP_GENERIC(EXCEPTION, TRAP, _id, \ + DEVLINK_TRAP_GROUP_GENERIC_ID_##_group_id, \ + PRESTERA_TRAP_METADATA) + +#define PRESTERA_TRAP_DRIVER_EXCEPTION(_id, _group_id) \ + DEVLINK_TRAP_DRIVER(EXCEPTION, TRAP, DEVLINK_PRESTERA_TRAP_ID_##_id, \ + DEVLINK_PRESTERA_TRAP_NAME_##_id, \ + DEVLINK_TRAP_GROUP_GENERIC_ID_##_group_id, \ + PRESTERA_TRAP_METADATA) + +#define PRESTERA_TRAP_DRIVER_DROP(_id, _group_id) \ + DEVLINK_TRAP_DRIVER(DROP, DROP, DEVLINK_PRESTERA_TRAP_ID_##_id, \ + DEVLINK_PRESTERA_TRAP_NAME_##_id, \ + DEVLINK_TRAP_GROUP_GENERIC_ID_##_group_id, \ + PRESTERA_TRAP_METADATA) + +static const struct devlink_trap_group prestera_trap_groups_arr[] = { + /* No policer is associated with following groups (policerid == 0)*/ + DEVLINK_TRAP_GROUP_GENERIC(L2_DROPS, 0), + DEVLINK_TRAP_GROUP_GENERIC(L3_DROPS, 0), + DEVLINK_TRAP_GROUP_GENERIC(L3_EXCEPTIONS, 0), + DEVLINK_TRAP_GROUP_GENERIC(NEIGH_DISCOVERY, 0), + DEVLINK_TRAP_GROUP_GENERIC(ACL_TRAP, 0), + DEVLINK_TRAP_GROUP_GENERIC(ACL_DROPS, 0), + DEVLINK_TRAP_GROUP_GENERIC(ACL_SAMPLE, 0), + DEVLINK_TRAP_GROUP_GENERIC(OSPF, 0), + DEVLINK_TRAP_GROUP_GENERIC(STP, 0), + DEVLINK_TRAP_GROUP_GENERIC(LACP, 0), + DEVLINK_TRAP_GROUP_GENERIC(LLDP, 0), + DEVLINK_TRAP_GROUP_GENERIC(VRRP, 0), + DEVLINK_TRAP_GROUP_GENERIC(DHCP, 0), + DEVLINK_TRAP_GROUP_GENERIC(BGP, 0), + DEVLINK_TRAP_GROUP_GENERIC(LOCAL_DELIVERY, 0), + DEVLINK_TRAP_GROUP_GENERIC(BUFFER_DROPS, 0), +}; + +/* Initialize trap list, as well as associate CPU code with them. */ +static struct prestera_trap prestera_trap_items_arr[] = { + { + .trap = PRESTERA_TRAP_DRIVER_CONTROL(ARP_BC, NEIGH_DISCOVERY), + .cpu_code = 5, + }, + { + .trap = PRESTERA_TRAP_DRIVER_CONTROL(IS_IS, LOCAL_DELIVERY), + .cpu_code = 13, + }, + { + .trap = PRESTERA_TRAP_DRIVER_CONTROL(OSPF, OSPF), + .cpu_code = 16, + }, + { + .trap = PRESTERA_TRAP_DRIVER_CONTROL(IP_BC_MAC, LOCAL_DELIVERY), + .cpu_code = 19, + }, + { + .trap = PRESTERA_TRAP_CONTROL(STP, STP, TRAP), + .cpu_code = 26, + }, + { + .trap = PRESTERA_TRAP_CONTROL(LACP, LACP, TRAP), + .cpu_code = 27, + }, + { + .trap = PRESTERA_TRAP_CONTROL(LLDP, LLDP, TRAP), + .cpu_code = 28, + }, + { + .trap = PRESTERA_TRAP_DRIVER_CONTROL(ROUTER_MC, LOCAL_DELIVERY), + .cpu_code = 29, + }, + { + .trap = PRESTERA_TRAP_DRIVER_CONTROL(VRRP, VRRP), + .cpu_code = 30, + }, + { + .trap = PRESTERA_TRAP_DRIVER_CONTROL(DHCP, DHCP), + .cpu_code = 33, + }, + { + .trap = PRESTERA_TRAP_EXCEPTION(MTU_ERROR, L3_EXCEPTIONS), + .cpu_code = 63, + }, + { + .trap = PRESTERA_TRAP_DRIVER_CONTROL(MAC_TO_ME, LOCAL_DELIVERY), + .cpu_code = 65, + }, + { + .trap = PRESTERA_TRAP_EXCEPTION(TTL_ERROR, L3_EXCEPTIONS), + .cpu_code = 133, + }, + { + .trap = PRESTERA_TRAP_DRIVER_EXCEPTION(IPV4_OPTIONS, + L3_EXCEPTIONS), + .cpu_code = 141, + }, + { + .trap = PRESTERA_TRAP_DRIVER_CONTROL(IP_DEFAULT_ROUTE, + LOCAL_DELIVERY), + .cpu_code = 160, + }, + { + .trap = PRESTERA_TRAP_CONTROL(LOCAL_ROUTE, LOCAL_DELIVERY, + TRAP), + .cpu_code = 161, + }, + { + .trap = PRESTERA_TRAP_DRIVER_EXCEPTION(IPV4_ICMP_REDIRECT, + L3_EXCEPTIONS), + .cpu_code = 180, + }, + { + .trap = PRESTERA_TRAP_CONTROL(ARP_RESPONSE, NEIGH_DISCOVERY, + TRAP), + .cpu_code = 188, + }, + { + .trap = PRESTERA_TRAP_DRIVER_CONTROL(ACL_CODE_0, ACL_TRAP), + .cpu_code = 192, + }, + { + .trap = PRESTERA_TRAP_DRIVER_CONTROL(ACL_CODE_1, ACL_TRAP), + .cpu_code = 193, + }, + { + .trap = PRESTERA_TRAP_DRIVER_CONTROL(ACL_CODE_2, ACL_TRAP), + .cpu_code = 194, + }, + { + .trap = PRESTERA_TRAP_DRIVER_CONTROL(ACL_CODE_3, ACL_TRAP), + .cpu_code = 195, + }, + { + .trap = PRESTERA_TRAP_DRIVER_CONTROL(ACL_CODE_4, ACL_TRAP), + .cpu_code = 196, + }, + { + .trap = PRESTERA_TRAP_DRIVER_CONTROL(ACL_CODE_5, ACL_TRAP), + .cpu_code = 197, + }, + { + .trap = PRESTERA_TRAP_DRIVER_CONTROL(ACL_CODE_6, ACL_TRAP), + .cpu_code = 198, + }, + { + .trap = PRESTERA_TRAP_DRIVER_CONTROL(ACL_CODE_7, ACL_TRAP), + .cpu_code = 199, + }, + { + .trap = PRESTERA_TRAP_DRIVER_CONTROL(BGP, BGP), + .cpu_code = 206, + }, + { + .trap = PRESTERA_TRAP_DRIVER_CONTROL(SSH, LOCAL_DELIVERY), + .cpu_code = 207, + }, + { + .trap = PRESTERA_TRAP_DRIVER_CONTROL(TELNET, LOCAL_DELIVERY), + .cpu_code = 208, + }, + { + .trap = PRESTERA_TRAP_DRIVER_CONTROL(ICMP, LOCAL_DELIVERY), + .cpu_code = 209, + }, + { + .trap = PRESTERA_TRAP_DRIVER_DROP(RXDMA_DROP, BUFFER_DROPS), + .cpu_code = 37, + }, + { + .trap = PRESTERA_TRAP_DRIVER_DROP(PORT_NO_VLAN, L2_DROPS), + .cpu_code = 39, + }, + { + .trap = PRESTERA_TRAP_DRIVER_DROP(LOCAL_PORT, L2_DROPS), + .cpu_code = 56, + }, + { + .trap = PRESTERA_TRAP_DRIVER_DROP(INVALID_SA, L2_DROPS), + .cpu_code = 60, + }, + { + .trap = PRESTERA_TRAP_DRIVER_DROP(ILLEGAL_IP_ADDR, L3_DROPS), + .cpu_code = 136, + }, + { + .trap = PRESTERA_TRAP_DRIVER_DROP(ILLEGAL_IPV4_HDR, L3_DROPS), + .cpu_code = 137, + }, + { + .trap = PRESTERA_TRAP_DRIVER_DROP(IP_UC_DIP_DA_MISMATCH, + L3_DROPS), + .cpu_code = 138, + }, + { + .trap = PRESTERA_TRAP_DRIVER_DROP(IP_SIP_IS_ZERO, L3_DROPS), + .cpu_code = 145, + }, + { + .trap = PRESTERA_TRAP_DRIVER_DROP(MET_RED, BUFFER_DROPS), + .cpu_code = 185, + }, +}; + +static int prestera_drop_counter_get(struct devlink *devlink, + const struct devlink_trap *trap, + u64 *p_drops); + +static int prestera_dl_info_get(struct devlink *dl, + struct devlink_info_req *req, + struct netlink_ext_ack *extack) +{ + struct prestera_switch *sw = devlink_priv(dl); + char buf[16]; + int err; + + err = devlink_info_driver_name_put(req, PRESTERA_DRV_NAME); + if (err) + return err; + + snprintf(buf, sizeof(buf), "%d.%d.%d", + sw->dev->fw_rev.maj, + sw->dev->fw_rev.min, + sw->dev->fw_rev.sub); + + return devlink_info_version_running_put(req, + DEVLINK_INFO_VERSION_GENERIC_FW, + buf); +} + +static int prestera_trap_init(struct devlink *devlink, + const struct devlink_trap *trap, void *trap_ctx); + +static int prestera_trap_action_set(struct devlink *devlink, + const struct devlink_trap *trap, + enum devlink_trap_action action, + struct netlink_ext_ack *extack); + +static const struct devlink_ops prestera_dl_ops = { + .info_get = prestera_dl_info_get, + .trap_init = prestera_trap_init, + .trap_action_set = prestera_trap_action_set, + .trap_drop_counter_get = prestera_drop_counter_get, +}; + +struct prestera_switch *prestera_devlink_alloc(struct prestera_device *dev) +{ + struct devlink *dl; + + dl = devlink_alloc(&prestera_dl_ops, sizeof(struct prestera_switch), + dev->dev); + + return devlink_priv(dl); +} + +void prestera_devlink_free(struct prestera_switch *sw) +{ + struct devlink *dl = priv_to_devlink(sw); + + devlink_free(dl); +} + +void prestera_devlink_register(struct prestera_switch *sw) +{ + struct devlink *dl = priv_to_devlink(sw); + + devlink_register(dl); +} + +void prestera_devlink_unregister(struct prestera_switch *sw) +{ + struct devlink *dl = priv_to_devlink(sw); + + devlink_unregister(dl); +} + +int prestera_devlink_port_register(struct prestera_port *port) +{ + struct prestera_switch *sw = port->sw; + struct devlink *dl = priv_to_devlink(sw); + struct devlink_port_attrs attrs = {}; + int err; + + attrs.flavour = DEVLINK_PORT_FLAVOUR_PHYSICAL; + attrs.phys.port_number = port->fp_id; + attrs.switch_id.id_len = sizeof(sw->id); + memcpy(attrs.switch_id.id, &sw->id, attrs.switch_id.id_len); + + devlink_port_attrs_set(&port->dl_port, &attrs); + + err = devlink_port_register(dl, &port->dl_port, port->fp_id); + if (err) { + dev_err(prestera_dev(sw), "devlink_port_register failed: %d\n", err); + return err; + } + + return 0; +} + +void prestera_devlink_port_unregister(struct prestera_port *port) +{ + devlink_port_unregister(&port->dl_port); +} + +void prestera_devlink_port_set(struct prestera_port *port) +{ + devlink_port_type_eth_set(&port->dl_port, port->dev); +} + +void prestera_devlink_port_clear(struct prestera_port *port) +{ + devlink_port_type_clear(&port->dl_port); +} + +struct devlink_port *prestera_devlink_get_port(struct net_device *dev) +{ + struct prestera_port *port = netdev_priv(dev); + + return &port->dl_port; +} + +int prestera_devlink_traps_register(struct prestera_switch *sw) +{ + const u32 groups_count = ARRAY_SIZE(prestera_trap_groups_arr); + const u32 traps_count = ARRAY_SIZE(prestera_trap_items_arr); + struct devlink *devlink = priv_to_devlink(sw); + struct prestera_trap_data *trap_data; + struct prestera_trap *prestera_trap; + int err, i; + + trap_data = kzalloc(sizeof(*trap_data), GFP_KERNEL); + if (!trap_data) + return -ENOMEM; + + trap_data->trap_items_arr = kcalloc(traps_count, + sizeof(struct prestera_trap_item), + GFP_KERNEL); + if (!trap_data->trap_items_arr) { + err = -ENOMEM; + goto err_trap_items_alloc; + } + + trap_data->sw = sw; + trap_data->traps_count = traps_count; + sw->trap_data = trap_data; + + err = devlink_trap_groups_register(devlink, prestera_trap_groups_arr, + groups_count); + if (err) + goto err_groups_register; + + for (i = 0; i < traps_count; i++) { + prestera_trap = &prestera_trap_items_arr[i]; + err = devlink_traps_register(devlink, &prestera_trap->trap, 1, + sw); + if (err) + goto err_trap_register; + } + + return 0; + +err_trap_register: + for (i--; i >= 0; i--) { + prestera_trap = &prestera_trap_items_arr[i]; + devlink_traps_unregister(devlink, &prestera_trap->trap, 1); + } + devlink_trap_groups_unregister(devlink, prestera_trap_groups_arr, + groups_count); +err_groups_register: + kfree(trap_data->trap_items_arr); +err_trap_items_alloc: + kfree(trap_data); + return err; +} + +static struct prestera_trap_item * +prestera_get_trap_item_by_cpu_code(struct prestera_switch *sw, u8 cpu_code) +{ + struct prestera_trap_data *trap_data = sw->trap_data; + struct prestera_trap *prestera_trap; + int i; + + for (i = 0; i < trap_data->traps_count; i++) { + prestera_trap = &prestera_trap_items_arr[i]; + if (cpu_code == prestera_trap->cpu_code) + return &trap_data->trap_items_arr[i]; + } + + return NULL; +} + +void prestera_devlink_trap_report(struct prestera_port *port, + struct sk_buff *skb, u8 cpu_code) +{ + struct prestera_trap_item *trap_item; + struct devlink *devlink; + + devlink = port->dl_port.devlink; + + trap_item = prestera_get_trap_item_by_cpu_code(port->sw, cpu_code); + if (unlikely(!trap_item)) + return; + + devlink_trap_report(devlink, skb, trap_item->trap_ctx, + &port->dl_port, NULL); +} + +static struct prestera_trap_item * +prestera_devlink_trap_item_lookup(struct prestera_switch *sw, u16 trap_id) +{ + struct prestera_trap_data *trap_data = sw->trap_data; + int i; + + for (i = 0; i < ARRAY_SIZE(prestera_trap_items_arr); i++) { + if (prestera_trap_items_arr[i].trap.id == trap_id) + return &trap_data->trap_items_arr[i]; + } + + return NULL; +} + +static int prestera_trap_init(struct devlink *devlink, + const struct devlink_trap *trap, void *trap_ctx) +{ + struct prestera_switch *sw = devlink_priv(devlink); + struct prestera_trap_item *trap_item; + + trap_item = prestera_devlink_trap_item_lookup(sw, trap->id); + if (WARN_ON(!trap_item)) + return -EINVAL; + + trap_item->trap_ctx = trap_ctx; + trap_item->action = trap->init_action; + + return 0; +} + +static int prestera_trap_action_set(struct devlink *devlink, + const struct devlink_trap *trap, + enum devlink_trap_action action, + struct netlink_ext_ack *extack) +{ + /* Currently, driver does not support trap action altering */ + return -EOPNOTSUPP; +} + +static int prestera_drop_counter_get(struct devlink *devlink, + const struct devlink_trap *trap, + u64 *p_drops) +{ + struct prestera_switch *sw = devlink_priv(devlink); + enum prestera_hw_cpu_code_cnt_t cpu_code_type = + PRESTERA_HW_CPU_CODE_CNT_TYPE_DROP; + struct prestera_trap *prestera_trap = + container_of(trap, struct prestera_trap, trap); + + return prestera_hw_cpu_code_counters_get(sw, prestera_trap->cpu_code, + cpu_code_type, p_drops); +} + +void prestera_devlink_traps_unregister(struct prestera_switch *sw) +{ + struct prestera_trap_data *trap_data = sw->trap_data; + struct devlink *dl = priv_to_devlink(sw); + const struct devlink_trap *trap; + int i; + + for (i = 0; i < ARRAY_SIZE(prestera_trap_items_arr); ++i) { + trap = &prestera_trap_items_arr[i].trap; + devlink_traps_unregister(dl, trap, 1); + } + + devlink_trap_groups_unregister(dl, prestera_trap_groups_arr, + ARRAY_SIZE(prestera_trap_groups_arr)); + kfree(trap_data->trap_items_arr); + kfree(trap_data); +} diff --git a/drivers/net/ethernet/marvell/prestera/prestera_devlink.h b/drivers/net/ethernet/marvell/prestera/prestera_devlink.h new file mode 100644 index 000000000..b322295ba --- /dev/null +++ b/drivers/net/ethernet/marvell/prestera/prestera_devlink.h @@ -0,0 +1,28 @@ +/* SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0 */ +/* Copyright (c) 2019-2020 Marvell International Ltd. All rights reserved. */ + +#ifndef _PRESTERA_DEVLINK_H_ +#define _PRESTERA_DEVLINK_H_ + +#include "prestera.h" + +struct prestera_switch *prestera_devlink_alloc(struct prestera_device *dev); +void prestera_devlink_free(struct prestera_switch *sw); + +void prestera_devlink_register(struct prestera_switch *sw); +void prestera_devlink_unregister(struct prestera_switch *sw); + +int prestera_devlink_port_register(struct prestera_port *port); +void prestera_devlink_port_unregister(struct prestera_port *port); + +void prestera_devlink_port_set(struct prestera_port *port); +void prestera_devlink_port_clear(struct prestera_port *port); + +struct devlink_port *prestera_devlink_get_port(struct net_device *dev); + +void prestera_devlink_trap_report(struct prestera_port *port, + struct sk_buff *skb, u8 cpu_code); +int prestera_devlink_traps_register(struct prestera_switch *sw); +void prestera_devlink_traps_unregister(struct prestera_switch *sw); + +#endif /* _PRESTERA_DEVLINK_H_ */ diff --git a/drivers/net/ethernet/marvell/prestera/prestera_dsa.c b/drivers/net/ethernet/marvell/prestera/prestera_dsa.c new file mode 100644 index 000000000..b7e89c0ca --- /dev/null +++ b/drivers/net/ethernet/marvell/prestera/prestera_dsa.c @@ -0,0 +1,107 @@ +// SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0 +/* Copyright (c) 2020 Marvell International Ltd. All rights reserved */ + +#include <linux/bitfield.h> +#include <linux/bitops.h> +#include <linux/errno.h> +#include <linux/string.h> + +#include "prestera_dsa.h" + +#define PRESTERA_DSA_W0_CMD GENMASK(31, 30) +#define PRESTERA_DSA_W0_IS_TAGGED BIT(29) +#define PRESTERA_DSA_W0_DEV_NUM GENMASK(28, 24) +#define PRESTERA_DSA_W0_PORT_NUM GENMASK(23, 19) +#define PRESTERA_DSA_W0_VPT GENMASK(15, 13) +#define PRESTERA_DSA_W0_EXT_BIT BIT(12) +#define PRESTERA_DSA_W0_VID GENMASK(11, 0) + +#define PRESTERA_DSA_W1_EXT_BIT BIT(31) +#define PRESTERA_DSA_W1_CFI_BIT BIT(30) +#define PRESTERA_DSA_W1_PORT_NUM GENMASK(11, 10) +#define PRESTERA_DSA_W1_MASK_CPU_CODE GENMASK(7, 0) + +#define PRESTERA_DSA_W2_EXT_BIT BIT(31) +#define PRESTERA_DSA_W2_PORT_NUM BIT(20) + +#define PRESTERA_DSA_W3_VID GENMASK(30, 27) +#define PRESTERA_DSA_W3_DST_EPORT GENMASK(23, 7) +#define PRESTERA_DSA_W3_DEV_NUM GENMASK(6, 0) + +#define PRESTERA_DSA_VID GENMASK(15, 12) +#define PRESTERA_DSA_DEV_NUM GENMASK(11, 5) + +int prestera_dsa_parse(struct prestera_dsa *dsa, const u8 *dsa_buf) +{ + __be32 *dsa_words = (__be32 *)dsa_buf; + enum prestera_dsa_cmd cmd; + u32 words[4]; + u32 field; + + words[0] = ntohl(dsa_words[0]); + words[1] = ntohl(dsa_words[1]); + words[2] = ntohl(dsa_words[2]); + words[3] = ntohl(dsa_words[3]); + + /* set the common parameters */ + cmd = (enum prestera_dsa_cmd)FIELD_GET(PRESTERA_DSA_W0_CMD, words[0]); + + /* only to CPU is supported */ + if (unlikely(cmd != PRESTERA_DSA_CMD_TO_CPU)) + return -EINVAL; + + if (FIELD_GET(PRESTERA_DSA_W0_EXT_BIT, words[0]) == 0) + return -EINVAL; + if (FIELD_GET(PRESTERA_DSA_W1_EXT_BIT, words[1]) == 0) + return -EINVAL; + if (FIELD_GET(PRESTERA_DSA_W2_EXT_BIT, words[2]) == 0) + return -EINVAL; + + field = FIELD_GET(PRESTERA_DSA_W3_VID, words[3]); + + dsa->vlan.is_tagged = FIELD_GET(PRESTERA_DSA_W0_IS_TAGGED, words[0]); + dsa->vlan.cfi_bit = FIELD_GET(PRESTERA_DSA_W1_CFI_BIT, words[1]); + dsa->vlan.vpt = FIELD_GET(PRESTERA_DSA_W0_VPT, words[0]); + dsa->vlan.vid = FIELD_GET(PRESTERA_DSA_W0_VID, words[0]); + dsa->vlan.vid &= ~PRESTERA_DSA_VID; + dsa->vlan.vid |= FIELD_PREP(PRESTERA_DSA_VID, field); + + field = FIELD_GET(PRESTERA_DSA_W3_DEV_NUM, words[3]); + + dsa->hw_dev_num = FIELD_GET(PRESTERA_DSA_W0_DEV_NUM, words[0]); + dsa->hw_dev_num |= FIELD_PREP(PRESTERA_DSA_DEV_NUM, field); + + dsa->port_num = (FIELD_GET(PRESTERA_DSA_W0_PORT_NUM, words[0]) << 0) | + (FIELD_GET(PRESTERA_DSA_W1_PORT_NUM, words[1]) << 5) | + (FIELD_GET(PRESTERA_DSA_W2_PORT_NUM, words[2]) << 7); + + dsa->cpu_code = FIELD_GET(PRESTERA_DSA_W1_MASK_CPU_CODE, words[1]); + + return 0; +} + +int prestera_dsa_build(const struct prestera_dsa *dsa, u8 *dsa_buf) +{ + __be32 *dsa_words = (__be32 *)dsa_buf; + u32 dev_num = dsa->hw_dev_num; + u32 words[4] = { 0 }; + + words[0] |= FIELD_PREP(PRESTERA_DSA_W0_CMD, PRESTERA_DSA_CMD_FROM_CPU); + + words[0] |= FIELD_PREP(PRESTERA_DSA_W0_DEV_NUM, dev_num); + dev_num = FIELD_GET(PRESTERA_DSA_DEV_NUM, dev_num); + words[3] |= FIELD_PREP(PRESTERA_DSA_W3_DEV_NUM, dev_num); + + words[3] |= FIELD_PREP(PRESTERA_DSA_W3_DST_EPORT, dsa->port_num); + + words[0] |= FIELD_PREP(PRESTERA_DSA_W0_EXT_BIT, 1); + words[1] |= FIELD_PREP(PRESTERA_DSA_W1_EXT_BIT, 1); + words[2] |= FIELD_PREP(PRESTERA_DSA_W2_EXT_BIT, 1); + + dsa_words[0] = htonl(words[0]); + dsa_words[1] = htonl(words[1]); + dsa_words[2] = htonl(words[2]); + dsa_words[3] = htonl(words[3]); + + return 0; +} diff --git a/drivers/net/ethernet/marvell/prestera/prestera_dsa.h b/drivers/net/ethernet/marvell/prestera/prestera_dsa.h new file mode 100644 index 000000000..c99342f47 --- /dev/null +++ b/drivers/net/ethernet/marvell/prestera/prestera_dsa.h @@ -0,0 +1,36 @@ +/* SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0 */ +/* Copyright (c) 2020 Marvell International Ltd. All rights reserved. */ + +#ifndef __PRESTERA_DSA_H_ +#define __PRESTERA_DSA_H_ + +#include <linux/types.h> + +#define PRESTERA_DSA_HLEN 16 + +enum prestera_dsa_cmd { + /* DSA command is "To CPU" */ + PRESTERA_DSA_CMD_TO_CPU = 0, + + /* DSA command is "From CPU" */ + PRESTERA_DSA_CMD_FROM_CPU, +}; + +struct prestera_dsa_vlan { + u16 vid; + u8 vpt; + u8 cfi_bit; + bool is_tagged; +}; + +struct prestera_dsa { + struct prestera_dsa_vlan vlan; + u32 hw_dev_num; + u32 port_num; + u8 cpu_code; +}; + +int prestera_dsa_parse(struct prestera_dsa *dsa, const u8 *dsa_buf); +int prestera_dsa_build(const struct prestera_dsa *dsa, u8 *dsa_buf); + +#endif /* _PRESTERA_DSA_H_ */ diff --git a/drivers/net/ethernet/marvell/prestera/prestera_ethtool.c b/drivers/net/ethernet/marvell/prestera/prestera_ethtool.c new file mode 100644 index 000000000..2f52daba5 --- /dev/null +++ b/drivers/net/ethernet/marvell/prestera/prestera_ethtool.c @@ -0,0 +1,802 @@ +// SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0 +/* Copyright (c) 2019-2020 Marvell International Ltd. All rights reserved */ + +#include <linux/ethtool.h> +#include <linux/kernel.h> +#include <linux/netdevice.h> + +#include "prestera_ethtool.h" +#include "prestera.h" +#include "prestera_hw.h" + +#define PRESTERA_STATS_CNT \ + (sizeof(struct prestera_port_stats) / sizeof(u64)) +#define PRESTERA_STATS_IDX(name) \ + (offsetof(struct prestera_port_stats, name) / sizeof(u64)) +#define PRESTERA_STATS_FIELD(name) \ + [PRESTERA_STATS_IDX(name)] = __stringify(name) + +static const char driver_kind[] = "prestera"; + +static const struct prestera_link_mode { + enum ethtool_link_mode_bit_indices eth_mode; + u32 speed; + u64 pr_mask; + u8 duplex; + u8 port_type; +} port_link_modes[PRESTERA_LINK_MODE_MAX] = { + [PRESTERA_LINK_MODE_10baseT_Half] = { + .eth_mode = ETHTOOL_LINK_MODE_10baseT_Half_BIT, + .speed = 10, + .pr_mask = 1 << PRESTERA_LINK_MODE_10baseT_Half, + .duplex = PRESTERA_PORT_DUPLEX_HALF, + .port_type = PRESTERA_PORT_TYPE_TP, + }, + [PRESTERA_LINK_MODE_10baseT_Full] = { + .eth_mode = ETHTOOL_LINK_MODE_10baseT_Full_BIT, + .speed = 10, + .pr_mask = 1 << PRESTERA_LINK_MODE_10baseT_Full, + .duplex = PRESTERA_PORT_DUPLEX_FULL, + .port_type = PRESTERA_PORT_TYPE_TP, + }, + [PRESTERA_LINK_MODE_100baseT_Half] = { + .eth_mode = ETHTOOL_LINK_MODE_100baseT_Half_BIT, + .speed = 100, + .pr_mask = 1 << PRESTERA_LINK_MODE_100baseT_Half, + .duplex = PRESTERA_PORT_DUPLEX_HALF, + .port_type = PRESTERA_PORT_TYPE_TP, + }, + [PRESTERA_LINK_MODE_100baseT_Full] = { + .eth_mode = ETHTOOL_LINK_MODE_100baseT_Full_BIT, + .speed = 100, + .pr_mask = 1 << PRESTERA_LINK_MODE_100baseT_Full, + .duplex = PRESTERA_PORT_DUPLEX_FULL, + .port_type = PRESTERA_PORT_TYPE_TP, + }, + [PRESTERA_LINK_MODE_1000baseT_Half] = { + .eth_mode = ETHTOOL_LINK_MODE_1000baseT_Half_BIT, + .speed = 1000, + .pr_mask = 1 << PRESTERA_LINK_MODE_1000baseT_Half, + .duplex = PRESTERA_PORT_DUPLEX_HALF, + .port_type = PRESTERA_PORT_TYPE_TP, + }, + [PRESTERA_LINK_MODE_1000baseT_Full] = { + .eth_mode = ETHTOOL_LINK_MODE_1000baseT_Full_BIT, + .speed = 1000, + .pr_mask = 1 << PRESTERA_LINK_MODE_1000baseT_Full, + .duplex = PRESTERA_PORT_DUPLEX_FULL, + .port_type = PRESTERA_PORT_TYPE_TP, + }, + [PRESTERA_LINK_MODE_1000baseX_Full] = { + .eth_mode = ETHTOOL_LINK_MODE_1000baseX_Full_BIT, + .speed = 1000, + .pr_mask = 1 << PRESTERA_LINK_MODE_1000baseX_Full, + .duplex = PRESTERA_PORT_DUPLEX_FULL, + .port_type = PRESTERA_PORT_TYPE_FIBRE, + }, + [PRESTERA_LINK_MODE_1000baseKX_Full] = { + .eth_mode = ETHTOOL_LINK_MODE_1000baseKX_Full_BIT, + .speed = 1000, + .pr_mask = 1 << PRESTERA_LINK_MODE_1000baseKX_Full, + .duplex = PRESTERA_PORT_DUPLEX_FULL, + .port_type = PRESTERA_PORT_TYPE_TP, + }, + [PRESTERA_LINK_MODE_2500baseX_Full] = { + .eth_mode = ETHTOOL_LINK_MODE_2500baseX_Full_BIT, + .speed = 2500, + .pr_mask = 1 << PRESTERA_LINK_MODE_2500baseX_Full, + .duplex = PRESTERA_PORT_DUPLEX_FULL, + }, + [PRESTERA_LINK_MODE_10GbaseKR_Full] = { + .eth_mode = ETHTOOL_LINK_MODE_10000baseKR_Full_BIT, + .speed = 10000, + .pr_mask = 1 << PRESTERA_LINK_MODE_10GbaseKR_Full, + .duplex = PRESTERA_PORT_DUPLEX_FULL, + .port_type = PRESTERA_PORT_TYPE_TP, + }, + [PRESTERA_LINK_MODE_10GbaseSR_Full] = { + .eth_mode = ETHTOOL_LINK_MODE_10000baseSR_Full_BIT, + .speed = 10000, + .pr_mask = 1 << PRESTERA_LINK_MODE_10GbaseSR_Full, + .duplex = PRESTERA_PORT_DUPLEX_FULL, + .port_type = PRESTERA_PORT_TYPE_FIBRE, + }, + [PRESTERA_LINK_MODE_10GbaseLR_Full] = { + .eth_mode = ETHTOOL_LINK_MODE_10000baseLR_Full_BIT, + .speed = 10000, + .pr_mask = 1 << PRESTERA_LINK_MODE_10GbaseLR_Full, + .duplex = PRESTERA_PORT_DUPLEX_FULL, + .port_type = PRESTERA_PORT_TYPE_FIBRE, + }, + [PRESTERA_LINK_MODE_20GbaseKR2_Full] = { + .eth_mode = ETHTOOL_LINK_MODE_20000baseKR2_Full_BIT, + .speed = 20000, + .pr_mask = 1 << PRESTERA_LINK_MODE_20GbaseKR2_Full, + .duplex = PRESTERA_PORT_DUPLEX_FULL, + .port_type = PRESTERA_PORT_TYPE_TP, + }, + [PRESTERA_LINK_MODE_25GbaseCR_Full] = { + .eth_mode = ETHTOOL_LINK_MODE_25000baseCR_Full_BIT, + .speed = 25000, + .pr_mask = 1 << PRESTERA_LINK_MODE_25GbaseCR_Full, + .duplex = PRESTERA_PORT_DUPLEX_FULL, + .port_type = PRESTERA_PORT_TYPE_DA, + }, + [PRESTERA_LINK_MODE_25GbaseKR_Full] = { + .eth_mode = ETHTOOL_LINK_MODE_25000baseKR_Full_BIT, + .speed = 25000, + .pr_mask = 1 << PRESTERA_LINK_MODE_25GbaseKR_Full, + .duplex = PRESTERA_PORT_DUPLEX_FULL, + .port_type = PRESTERA_PORT_TYPE_TP, + }, + [PRESTERA_LINK_MODE_25GbaseSR_Full] = { + .eth_mode = ETHTOOL_LINK_MODE_25000baseSR_Full_BIT, + .speed = 25000, + .pr_mask = 1 << PRESTERA_LINK_MODE_25GbaseSR_Full, + .duplex = PRESTERA_PORT_DUPLEX_FULL, + .port_type = PRESTERA_PORT_TYPE_FIBRE, + }, + [PRESTERA_LINK_MODE_40GbaseKR4_Full] = { + .eth_mode = ETHTOOL_LINK_MODE_40000baseKR4_Full_BIT, + .speed = 40000, + .pr_mask = 1 << PRESTERA_LINK_MODE_40GbaseKR4_Full, + .duplex = PRESTERA_PORT_DUPLEX_FULL, + .port_type = PRESTERA_PORT_TYPE_TP, + }, + [PRESTERA_LINK_MODE_40GbaseCR4_Full] = { + .eth_mode = ETHTOOL_LINK_MODE_40000baseCR4_Full_BIT, + .speed = 40000, + .pr_mask = 1 << PRESTERA_LINK_MODE_40GbaseCR4_Full, + .duplex = PRESTERA_PORT_DUPLEX_FULL, + .port_type = PRESTERA_PORT_TYPE_DA, + }, + [PRESTERA_LINK_MODE_40GbaseSR4_Full] = { + .eth_mode = ETHTOOL_LINK_MODE_40000baseSR4_Full_BIT, + .speed = 40000, + .pr_mask = 1 << PRESTERA_LINK_MODE_40GbaseSR4_Full, + .duplex = PRESTERA_PORT_DUPLEX_FULL, + .port_type = PRESTERA_PORT_TYPE_FIBRE, + }, + [PRESTERA_LINK_MODE_50GbaseCR2_Full] = { + .eth_mode = ETHTOOL_LINK_MODE_50000baseCR2_Full_BIT, + .speed = 50000, + .pr_mask = 1 << PRESTERA_LINK_MODE_50GbaseCR2_Full, + .duplex = PRESTERA_PORT_DUPLEX_FULL, + .port_type = PRESTERA_PORT_TYPE_DA, + }, + [PRESTERA_LINK_MODE_50GbaseKR2_Full] = { + .eth_mode = ETHTOOL_LINK_MODE_50000baseKR2_Full_BIT, + .speed = 50000, + .pr_mask = 1 << PRESTERA_LINK_MODE_50GbaseKR2_Full, + .duplex = PRESTERA_PORT_DUPLEX_FULL, + .port_type = PRESTERA_PORT_TYPE_TP, + }, + [PRESTERA_LINK_MODE_50GbaseSR2_Full] = { + .eth_mode = ETHTOOL_LINK_MODE_50000baseSR2_Full_BIT, + .speed = 50000, + .pr_mask = 1 << PRESTERA_LINK_MODE_50GbaseSR2_Full, + .duplex = PRESTERA_PORT_DUPLEX_FULL, + .port_type = PRESTERA_PORT_TYPE_FIBRE, + }, + [PRESTERA_LINK_MODE_100GbaseKR4_Full] = { + .eth_mode = ETHTOOL_LINK_MODE_100000baseKR4_Full_BIT, + .speed = 100000, + .pr_mask = 1 << PRESTERA_LINK_MODE_100GbaseKR4_Full, + .duplex = PRESTERA_PORT_DUPLEX_FULL, + .port_type = PRESTERA_PORT_TYPE_TP, + }, + [PRESTERA_LINK_MODE_100GbaseSR4_Full] = { + .eth_mode = ETHTOOL_LINK_MODE_100000baseSR4_Full_BIT, + .speed = 100000, + .pr_mask = 1 << PRESTERA_LINK_MODE_100GbaseSR4_Full, + .duplex = PRESTERA_PORT_DUPLEX_FULL, + .port_type = PRESTERA_PORT_TYPE_FIBRE, + }, + [PRESTERA_LINK_MODE_100GbaseCR4_Full] = { + .eth_mode = ETHTOOL_LINK_MODE_100000baseCR4_Full_BIT, + .speed = 100000, + .pr_mask = 1 << PRESTERA_LINK_MODE_100GbaseCR4_Full, + .duplex = PRESTERA_PORT_DUPLEX_FULL, + .port_type = PRESTERA_PORT_TYPE_DA, + } +}; + +static const struct prestera_fec { + u32 eth_fec; + enum ethtool_link_mode_bit_indices eth_mode; + u8 pr_fec; +} port_fec_caps[PRESTERA_PORT_FEC_MAX] = { + [PRESTERA_PORT_FEC_OFF] = { + .eth_fec = ETHTOOL_FEC_OFF, + .eth_mode = ETHTOOL_LINK_MODE_FEC_NONE_BIT, + .pr_fec = 1 << PRESTERA_PORT_FEC_OFF, + }, + [PRESTERA_PORT_FEC_BASER] = { + .eth_fec = ETHTOOL_FEC_BASER, + .eth_mode = ETHTOOL_LINK_MODE_FEC_BASER_BIT, + .pr_fec = 1 << PRESTERA_PORT_FEC_BASER, + }, + [PRESTERA_PORT_FEC_RS] = { + .eth_fec = ETHTOOL_FEC_RS, + .eth_mode = ETHTOOL_LINK_MODE_FEC_RS_BIT, + .pr_fec = 1 << PRESTERA_PORT_FEC_RS, + } +}; + +static const struct prestera_port_type { + enum ethtool_link_mode_bit_indices eth_mode; + u8 eth_type; +} port_types[PRESTERA_PORT_TYPE_MAX] = { + [PRESTERA_PORT_TYPE_NONE] = { + .eth_mode = __ETHTOOL_LINK_MODE_MASK_NBITS, + .eth_type = PORT_NONE, + }, + [PRESTERA_PORT_TYPE_TP] = { + .eth_mode = ETHTOOL_LINK_MODE_TP_BIT, + .eth_type = PORT_TP, + }, + [PRESTERA_PORT_TYPE_AUI] = { + .eth_mode = ETHTOOL_LINK_MODE_AUI_BIT, + .eth_type = PORT_AUI, + }, + [PRESTERA_PORT_TYPE_MII] = { + .eth_mode = ETHTOOL_LINK_MODE_MII_BIT, + .eth_type = PORT_MII, + }, + [PRESTERA_PORT_TYPE_FIBRE] = { + .eth_mode = ETHTOOL_LINK_MODE_FIBRE_BIT, + .eth_type = PORT_FIBRE, + }, + [PRESTERA_PORT_TYPE_BNC] = { + .eth_mode = ETHTOOL_LINK_MODE_BNC_BIT, + .eth_type = PORT_BNC, + }, + [PRESTERA_PORT_TYPE_DA] = { + .eth_mode = ETHTOOL_LINK_MODE_TP_BIT, + .eth_type = PORT_TP, + }, + [PRESTERA_PORT_TYPE_OTHER] = { + .eth_mode = __ETHTOOL_LINK_MODE_MASK_NBITS, + .eth_type = PORT_OTHER, + } +}; + +static const char prestera_cnt_name[PRESTERA_STATS_CNT][ETH_GSTRING_LEN] = { + PRESTERA_STATS_FIELD(good_octets_received), + PRESTERA_STATS_FIELD(bad_octets_received), + PRESTERA_STATS_FIELD(mac_trans_error), + PRESTERA_STATS_FIELD(broadcast_frames_received), + PRESTERA_STATS_FIELD(multicast_frames_received), + PRESTERA_STATS_FIELD(frames_64_octets), + PRESTERA_STATS_FIELD(frames_65_to_127_octets), + PRESTERA_STATS_FIELD(frames_128_to_255_octets), + PRESTERA_STATS_FIELD(frames_256_to_511_octets), + PRESTERA_STATS_FIELD(frames_512_to_1023_octets), + PRESTERA_STATS_FIELD(frames_1024_to_max_octets), + PRESTERA_STATS_FIELD(excessive_collision), + PRESTERA_STATS_FIELD(multicast_frames_sent), + PRESTERA_STATS_FIELD(broadcast_frames_sent), + PRESTERA_STATS_FIELD(fc_sent), + PRESTERA_STATS_FIELD(fc_received), + PRESTERA_STATS_FIELD(buffer_overrun), + PRESTERA_STATS_FIELD(undersize), + PRESTERA_STATS_FIELD(fragments), + PRESTERA_STATS_FIELD(oversize), + PRESTERA_STATS_FIELD(jabber), + PRESTERA_STATS_FIELD(rx_error_frame_received), + PRESTERA_STATS_FIELD(bad_crc), + PRESTERA_STATS_FIELD(collisions), + PRESTERA_STATS_FIELD(late_collision), + PRESTERA_STATS_FIELD(unicast_frames_received), + PRESTERA_STATS_FIELD(unicast_frames_sent), + PRESTERA_STATS_FIELD(sent_multiple), + PRESTERA_STATS_FIELD(sent_deferred), + PRESTERA_STATS_FIELD(good_octets_sent), +}; + +static void prestera_ethtool_get_drvinfo(struct net_device *dev, + struct ethtool_drvinfo *drvinfo) +{ + struct prestera_port *port = netdev_priv(dev); + struct prestera_switch *sw = port->sw; + + strscpy(drvinfo->driver, driver_kind, sizeof(drvinfo->driver)); + strscpy(drvinfo->bus_info, dev_name(prestera_dev(sw)), + sizeof(drvinfo->bus_info)); + snprintf(drvinfo->fw_version, sizeof(drvinfo->fw_version), + "%d.%d.%d", + sw->dev->fw_rev.maj, + sw->dev->fw_rev.min, + sw->dev->fw_rev.sub); +} + +static u8 prestera_port_type_get(struct prestera_port *port) +{ + if (port->caps.type < PRESTERA_PORT_TYPE_MAX) + return port_types[port->caps.type].eth_type; + + return PORT_OTHER; +} + +static int prestera_port_type_set(const struct ethtool_link_ksettings *ecmd, + struct prestera_port *port) +{ + u32 new_mode = PRESTERA_LINK_MODE_MAX; + u32 type, mode; + + for (type = 0; type < PRESTERA_PORT_TYPE_MAX; type++) { + if (port_types[type].eth_type == ecmd->base.port && + test_bit(port_types[type].eth_mode, + ecmd->link_modes.supported)) { + break; + } + } + + if (type == port->caps.type) + return 0; + if (type != port->caps.type && ecmd->base.autoneg == AUTONEG_ENABLE) + return -EINVAL; + if (type == PRESTERA_PORT_TYPE_MAX) + return -EOPNOTSUPP; + + for (mode = 0; mode < PRESTERA_LINK_MODE_MAX; mode++) { + if ((port_link_modes[mode].pr_mask & + port->caps.supp_link_modes) && + type == port_link_modes[mode].port_type) { + new_mode = mode; + } + } + + if (new_mode >= PRESTERA_LINK_MODE_MAX) + return -EINVAL; + + port->caps.type = type; + port->autoneg = false; + + return 0; +} + +static void prestera_modes_to_eth(unsigned long *eth_modes, u64 link_modes, + u8 fec, u8 type) +{ + u32 mode; + + for (mode = 0; mode < PRESTERA_LINK_MODE_MAX; mode++) { + if ((port_link_modes[mode].pr_mask & link_modes) == 0) + continue; + + if (type != PRESTERA_PORT_TYPE_NONE && + port_link_modes[mode].port_type != type) + continue; + + __set_bit(port_link_modes[mode].eth_mode, eth_modes); + } + + for (mode = 0; mode < PRESTERA_PORT_FEC_MAX; mode++) { + if ((port_fec_caps[mode].pr_fec & fec) == 0) + continue; + + __set_bit(port_fec_caps[mode].eth_mode, eth_modes); + } +} + +static void prestera_modes_from_eth(const unsigned long *eth_modes, + u64 *link_modes, u8 *fec, u8 type) +{ + u64 adver_modes = 0; + u32 fec_modes = 0; + u32 mode; + + for (mode = 0; mode < PRESTERA_LINK_MODE_MAX; mode++) { + if (!test_bit(port_link_modes[mode].eth_mode, eth_modes)) + continue; + + if (port_link_modes[mode].port_type != type) + continue; + + adver_modes |= port_link_modes[mode].pr_mask; + } + + for (mode = 0; mode < PRESTERA_PORT_FEC_MAX; mode++) { + if (!test_bit(port_fec_caps[mode].eth_mode, eth_modes)) + continue; + + fec_modes |= port_fec_caps[mode].pr_fec; + } + + *link_modes = adver_modes; + *fec = fec_modes; +} + +static void prestera_port_supp_types_get(struct ethtool_link_ksettings *ecmd, + struct prestera_port *port) +{ + u32 mode; + u8 ptype; + + for (mode = 0; mode < PRESTERA_LINK_MODE_MAX; mode++) { + if ((port_link_modes[mode].pr_mask & + port->caps.supp_link_modes) == 0) + continue; + + ptype = port_link_modes[mode].port_type; + __set_bit(port_types[ptype].eth_mode, + ecmd->link_modes.supported); + } +} + +static void prestera_port_remote_cap_get(struct ethtool_link_ksettings *ecmd, + struct prestera_port *port) +{ + struct prestera_port_phy_state *state = &port->state_phy; + bool asym_pause; + bool pause; + u64 bitmap; + int err; + + err = prestera_hw_port_phy_mode_get(port, NULL, &state->lmode_bmap, + &state->remote_fc.pause, + &state->remote_fc.asym_pause); + if (err) + netdev_warn(port->dev, "Remote link caps get failed %d", + port->caps.transceiver); + + bitmap = state->lmode_bmap; + + prestera_modes_to_eth(ecmd->link_modes.lp_advertising, + bitmap, 0, PRESTERA_PORT_TYPE_NONE); + + if (!bitmap_empty(ecmd->link_modes.lp_advertising, + __ETHTOOL_LINK_MODE_MASK_NBITS)) { + ethtool_link_ksettings_add_link_mode(ecmd, + lp_advertising, + Autoneg); + } + + pause = state->remote_fc.pause; + asym_pause = state->remote_fc.asym_pause; + + if (pause) + ethtool_link_ksettings_add_link_mode(ecmd, + lp_advertising, + Pause); + if (asym_pause) + ethtool_link_ksettings_add_link_mode(ecmd, + lp_advertising, + Asym_Pause); +} + +static void prestera_port_link_mode_get(struct ethtool_link_ksettings *ecmd, + struct prestera_port *port) +{ + struct prestera_port_mac_state *state = &port->state_mac; + u32 speed; + u8 duplex; + int err; + + if (!port->state_mac.oper) + return; + + if (state->speed == SPEED_UNKNOWN || state->duplex == DUPLEX_UNKNOWN) { + err = prestera_hw_port_mac_mode_get(port, NULL, &speed, + &duplex, NULL); + if (err) { + state->speed = SPEED_UNKNOWN; + state->duplex = DUPLEX_UNKNOWN; + } else { + state->speed = speed; + state->duplex = duplex == PRESTERA_PORT_DUPLEX_FULL ? + DUPLEX_FULL : DUPLEX_HALF; + } + } + + ecmd->base.speed = port->state_mac.speed; + ecmd->base.duplex = port->state_mac.duplex; +} + +static void prestera_port_mdix_get(struct ethtool_link_ksettings *ecmd, + struct prestera_port *port) +{ + struct prestera_port_phy_state *state = &port->state_phy; + + if (prestera_hw_port_phy_mode_get(port, + &state->mdix, NULL, NULL, NULL)) { + netdev_warn(port->dev, "MDIX params get failed"); + state->mdix = ETH_TP_MDI_INVALID; + } + + ecmd->base.eth_tp_mdix = port->state_phy.mdix; + ecmd->base.eth_tp_mdix_ctrl = port->cfg_phy.mdix; +} + +static int +prestera_ethtool_get_link_ksettings(struct net_device *dev, + struct ethtool_link_ksettings *ecmd) +{ + struct prestera_port *port = netdev_priv(dev); + + ethtool_link_ksettings_zero_link_mode(ecmd, supported); + ethtool_link_ksettings_zero_link_mode(ecmd, advertising); + ethtool_link_ksettings_zero_link_mode(ecmd, lp_advertising); + ecmd->base.speed = SPEED_UNKNOWN; + ecmd->base.duplex = DUPLEX_UNKNOWN; + + if (port->phy_link) + return phylink_ethtool_ksettings_get(port->phy_link, ecmd); + + ecmd->base.autoneg = port->autoneg ? AUTONEG_ENABLE : AUTONEG_DISABLE; + + if (port->caps.type == PRESTERA_PORT_TYPE_TP) { + ethtool_link_ksettings_add_link_mode(ecmd, supported, Autoneg); + + if (netif_running(dev) && + (port->autoneg || + port->caps.transceiver == PRESTERA_PORT_TCVR_COPPER)) + ethtool_link_ksettings_add_link_mode(ecmd, advertising, + Autoneg); + } + + prestera_modes_to_eth(ecmd->link_modes.supported, + port->caps.supp_link_modes, + port->caps.supp_fec, + port->caps.type); + + prestera_port_supp_types_get(ecmd, port); + + if (netif_carrier_ok(dev)) + prestera_port_link_mode_get(ecmd, port); + + ecmd->base.port = prestera_port_type_get(port); + + if (port->autoneg) { + if (netif_running(dev)) + prestera_modes_to_eth(ecmd->link_modes.advertising, + port->adver_link_modes, + port->adver_fec, + port->caps.type); + + if (netif_carrier_ok(dev) && + port->caps.transceiver == PRESTERA_PORT_TCVR_COPPER) + prestera_port_remote_cap_get(ecmd, port); + } + + if (port->caps.type == PRESTERA_PORT_TYPE_TP && + port->caps.transceiver == PRESTERA_PORT_TCVR_COPPER) + prestera_port_mdix_get(ecmd, port); + + return 0; +} + +static int prestera_port_mdix_set(const struct ethtool_link_ksettings *ecmd, + struct prestera_port *port) +{ + if (ecmd->base.eth_tp_mdix_ctrl != ETH_TP_MDI_INVALID && + port->caps.transceiver == PRESTERA_PORT_TCVR_COPPER && + port->caps.type == PRESTERA_PORT_TYPE_TP) { + port->cfg_phy.mdix = ecmd->base.eth_tp_mdix_ctrl; + return prestera_hw_port_phy_mode_set(port, port->cfg_phy.admin, + port->autoneg, + port->cfg_phy.mode, + port->adver_link_modes, + port->cfg_phy.mdix); + } + return 0; + +} + +static int prestera_port_link_mode_set(struct prestera_port *port, + u32 speed, u8 duplex, u8 type) +{ + u32 new_mode = PRESTERA_LINK_MODE_MAX; + u32 mode; + int err; + + for (mode = 0; mode < PRESTERA_LINK_MODE_MAX; mode++) { + if (speed != SPEED_UNKNOWN && + speed != port_link_modes[mode].speed) + continue; + + if (duplex != DUPLEX_UNKNOWN && + duplex != port_link_modes[mode].duplex) + continue; + + if (!(port_link_modes[mode].pr_mask & + port->caps.supp_link_modes)) + continue; + + if (type != port_link_modes[mode].port_type) + continue; + + new_mode = mode; + break; + } + + if (new_mode == PRESTERA_LINK_MODE_MAX) + return -EOPNOTSUPP; + + err = prestera_hw_port_phy_mode_set(port, port->cfg_phy.admin, + false, new_mode, 0, + port->cfg_phy.mdix); + if (err) + return err; + + port->adver_fec = BIT(PRESTERA_PORT_FEC_OFF); + port->adver_link_modes = 0; + port->cfg_phy.mode = new_mode; + port->autoneg = false; + + return 0; +} + +static int +prestera_port_speed_duplex_set(const struct ethtool_link_ksettings *ecmd, + struct prestera_port *port) +{ + u8 duplex = DUPLEX_UNKNOWN; + + if (ecmd->base.duplex != DUPLEX_UNKNOWN) + duplex = ecmd->base.duplex == DUPLEX_FULL ? + PRESTERA_PORT_DUPLEX_FULL : PRESTERA_PORT_DUPLEX_HALF; + + return prestera_port_link_mode_set(port, ecmd->base.speed, duplex, + port->caps.type); +} + +static int +prestera_ethtool_set_link_ksettings(struct net_device *dev, + const struct ethtool_link_ksettings *ecmd) +{ + struct prestera_port *port = netdev_priv(dev); + u64 adver_modes; + u8 adver_fec; + int err; + + if (port->phy_link) + return phylink_ethtool_ksettings_set(port->phy_link, ecmd); + + err = prestera_port_type_set(ecmd, port); + if (err) + return err; + + if (port->caps.transceiver == PRESTERA_PORT_TCVR_COPPER) { + err = prestera_port_mdix_set(ecmd, port); + if (err) + return err; + } + + prestera_modes_from_eth(ecmd->link_modes.advertising, &adver_modes, + &adver_fec, port->caps.type); + + if (ecmd->base.autoneg == AUTONEG_ENABLE) + err = prestera_port_autoneg_set(port, adver_modes); + else + err = prestera_port_speed_duplex_set(ecmd, port); + + return err; +} + +static int prestera_ethtool_get_fecparam(struct net_device *dev, + struct ethtool_fecparam *fecparam) +{ + struct prestera_port *port = netdev_priv(dev); + u8 active; + u32 mode; + int err; + + err = prestera_hw_port_mac_mode_get(port, NULL, NULL, NULL, &active); + if (err) + return err; + + fecparam->fec = 0; + + for (mode = 0; mode < PRESTERA_PORT_FEC_MAX; mode++) { + if ((port_fec_caps[mode].pr_fec & port->caps.supp_fec) == 0) + continue; + + fecparam->fec |= port_fec_caps[mode].eth_fec; + } + + if (active < PRESTERA_PORT_FEC_MAX) + fecparam->active_fec = port_fec_caps[active].eth_fec; + else + fecparam->active_fec = ETHTOOL_FEC_AUTO; + + return 0; +} + +static int prestera_ethtool_set_fecparam(struct net_device *dev, + struct ethtool_fecparam *fecparam) +{ + struct prestera_port *port = netdev_priv(dev); + struct prestera_port_mac_config cfg_mac; + u32 mode; + u8 fec; + + if (port->autoneg) { + netdev_err(dev, "FEC set is not allowed while autoneg is on\n"); + return -EINVAL; + } + + if (port->caps.transceiver == PRESTERA_PORT_TCVR_SFP) { + netdev_err(dev, "FEC set is not allowed on non-SFP ports\n"); + return -EINVAL; + } + + fec = PRESTERA_PORT_FEC_MAX; + for (mode = 0; mode < PRESTERA_PORT_FEC_MAX; mode++) { + if ((port_fec_caps[mode].eth_fec & fecparam->fec) && + (port_fec_caps[mode].pr_fec & port->caps.supp_fec)) { + fec = mode; + break; + } + } + + prestera_port_cfg_mac_read(port, &cfg_mac); + + if (fec == cfg_mac.fec) + return 0; + + if (fec == PRESTERA_PORT_FEC_MAX) { + netdev_err(dev, "Unsupported FEC requested"); + return -EINVAL; + } + + cfg_mac.fec = fec; + + return prestera_port_cfg_mac_write(port, &cfg_mac); +} + +static int prestera_ethtool_get_sset_count(struct net_device *dev, int sset) +{ + switch (sset) { + case ETH_SS_STATS: + return PRESTERA_STATS_CNT; + default: + return -EOPNOTSUPP; + } +} + +static void prestera_ethtool_get_strings(struct net_device *dev, + u32 stringset, u8 *data) +{ + if (stringset != ETH_SS_STATS) + return; + + memcpy(data, prestera_cnt_name, sizeof(prestera_cnt_name)); +} + +static void prestera_ethtool_get_stats(struct net_device *dev, + struct ethtool_stats *stats, u64 *data) +{ + struct prestera_port *port = netdev_priv(dev); + struct prestera_port_stats *port_stats; + + port_stats = &port->cached_hw_stats.stats; + + memcpy(data, port_stats, sizeof(*port_stats)); +} + +static int prestera_ethtool_nway_reset(struct net_device *dev) +{ + struct prestera_port *port = netdev_priv(dev); + + if (netif_running(dev) && + port->caps.transceiver == PRESTERA_PORT_TCVR_COPPER && + port->caps.type == PRESTERA_PORT_TYPE_TP) + return prestera_hw_port_autoneg_restart(port); + + return -EINVAL; +} + +const struct ethtool_ops prestera_ethtool_ops = { + .get_drvinfo = prestera_ethtool_get_drvinfo, + .get_link_ksettings = prestera_ethtool_get_link_ksettings, + .set_link_ksettings = prestera_ethtool_set_link_ksettings, + .get_fecparam = prestera_ethtool_get_fecparam, + .set_fecparam = prestera_ethtool_set_fecparam, + .get_sset_count = prestera_ethtool_get_sset_count, + .get_strings = prestera_ethtool_get_strings, + .get_ethtool_stats = prestera_ethtool_get_stats, + .get_link = ethtool_op_get_link, + .nway_reset = prestera_ethtool_nway_reset +}; diff --git a/drivers/net/ethernet/marvell/prestera/prestera_ethtool.h b/drivers/net/ethernet/marvell/prestera/prestera_ethtool.h new file mode 100644 index 000000000..bd5600886 --- /dev/null +++ b/drivers/net/ethernet/marvell/prestera/prestera_ethtool.h @@ -0,0 +1,14 @@ +/* SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0 */ +/* Copyright (c) 2019-2020 Marvell International Ltd. All rights reserved. */ + +#ifndef __PRESTERA_ETHTOOL_H_ +#define __PRESTERA_ETHTOOL_H_ + +#include <linux/ethtool.h> + +struct prestera_port_event; +struct prestera_port; + +extern const struct ethtool_ops prestera_ethtool_ops; + +#endif /* _PRESTERA_ETHTOOL_H_ */ diff --git a/drivers/net/ethernet/marvell/prestera/prestera_flow.c b/drivers/net/ethernet/marvell/prestera/prestera_flow.c new file mode 100644 index 000000000..9f4267f32 --- /dev/null +++ b/drivers/net/ethernet/marvell/prestera/prestera_flow.c @@ -0,0 +1,315 @@ +// SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0 +/* Copyright (c) 2020 Marvell International Ltd. All rights reserved */ + +#include <linux/kernel.h> +#include <linux/list.h> + +#include "prestera.h" +#include "prestera_acl.h" +#include "prestera_flow.h" +#include "prestera_flower.h" +#include "prestera_matchall.h" +#include "prestera_span.h" + +static LIST_HEAD(prestera_block_cb_list); + +static int prestera_flow_block_mall_cb(struct prestera_flow_block *block, + struct tc_cls_matchall_offload *f) +{ + switch (f->command) { + case TC_CLSMATCHALL_REPLACE: + return prestera_mall_replace(block, f); + case TC_CLSMATCHALL_DESTROY: + prestera_mall_destroy(block); + return 0; + default: + return -EOPNOTSUPP; + } +} + +static int prestera_flow_block_flower_cb(struct prestera_flow_block *block, + struct flow_cls_offload *f) +{ + switch (f->command) { + case FLOW_CLS_REPLACE: + return prestera_flower_replace(block, f); + case FLOW_CLS_DESTROY: + prestera_flower_destroy(block, f); + return 0; + case FLOW_CLS_STATS: + return prestera_flower_stats(block, f); + case FLOW_CLS_TMPLT_CREATE: + return prestera_flower_tmplt_create(block, f); + case FLOW_CLS_TMPLT_DESTROY: + prestera_flower_tmplt_destroy(block, f); + return 0; + default: + return -EOPNOTSUPP; + } +} + +static int prestera_flow_block_cb(enum tc_setup_type type, + void *type_data, void *cb_priv) +{ + struct prestera_flow_block *block = cb_priv; + + switch (type) { + case TC_SETUP_CLSFLOWER: + return prestera_flow_block_flower_cb(block, type_data); + case TC_SETUP_CLSMATCHALL: + return prestera_flow_block_mall_cb(block, type_data); + default: + return -EOPNOTSUPP; + } +} + +static void prestera_flow_block_destroy(void *cb_priv) +{ + struct prestera_flow_block *block = cb_priv; + + prestera_flower_template_cleanup(block); + + WARN_ON(!list_empty(&block->template_list)); + WARN_ON(!list_empty(&block->binding_list)); + + kfree(block); +} + +static struct prestera_flow_block * +prestera_flow_block_create(struct prestera_switch *sw, + struct net *net, + bool ingress) +{ + struct prestera_flow_block *block; + + block = kzalloc(sizeof(*block), GFP_KERNEL); + if (!block) + return NULL; + + INIT_LIST_HEAD(&block->binding_list); + INIT_LIST_HEAD(&block->template_list); + block->net = net; + block->sw = sw; + block->mall.prio_min = UINT_MAX; + block->mall.prio_max = 0; + block->mall.bound = false; + block->ingress = ingress; + + return block; +} + +static void prestera_flow_block_release(void *cb_priv) +{ + struct prestera_flow_block *block = cb_priv; + + prestera_flow_block_destroy(block); +} + +static bool +prestera_flow_block_is_bound(const struct prestera_flow_block *block) +{ + return block->ruleset_zero; +} + +static struct prestera_flow_block_binding * +prestera_flow_block_lookup(struct prestera_flow_block *block, + struct prestera_port *port) +{ + struct prestera_flow_block_binding *binding; + + list_for_each_entry(binding, &block->binding_list, list) + if (binding->port == port) + return binding; + + return NULL; +} + +static int prestera_flow_block_bind(struct prestera_flow_block *block, + struct prestera_port *port) +{ + struct prestera_flow_block_binding *binding; + int err; + + binding = kzalloc(sizeof(*binding), GFP_KERNEL); + if (!binding) + return -ENOMEM; + + binding->span_id = PRESTERA_SPAN_INVALID_ID; + binding->port = port; + + if (prestera_flow_block_is_bound(block)) { + err = prestera_acl_ruleset_bind(block->ruleset_zero, port); + if (err) + goto err_ruleset_bind; + } + + list_add(&binding->list, &block->binding_list); + return 0; + +err_ruleset_bind: + kfree(binding); + return err; +} + +static int prestera_flow_block_unbind(struct prestera_flow_block *block, + struct prestera_port *port) +{ + struct prestera_flow_block_binding *binding; + + binding = prestera_flow_block_lookup(block, port); + if (!binding) + return -ENOENT; + + list_del(&binding->list); + + if (prestera_flow_block_is_bound(block)) + prestera_acl_ruleset_unbind(block->ruleset_zero, port); + + kfree(binding); + return 0; +} + +static struct prestera_flow_block * +prestera_flow_block_get(struct prestera_switch *sw, + struct flow_block_offload *f, + bool *register_block, + bool ingress) +{ + struct prestera_flow_block *block; + struct flow_block_cb *block_cb; + + block_cb = flow_block_cb_lookup(f->block, + prestera_flow_block_cb, sw); + if (!block_cb) { + block = prestera_flow_block_create(sw, f->net, ingress); + if (!block) + return ERR_PTR(-ENOMEM); + + block_cb = flow_block_cb_alloc(prestera_flow_block_cb, + sw, block, + prestera_flow_block_release); + if (IS_ERR(block_cb)) { + prestera_flow_block_destroy(block); + return ERR_CAST(block_cb); + } + + block->block_cb = block_cb; + *register_block = true; + } else { + block = flow_block_cb_priv(block_cb); + *register_block = false; + } + + flow_block_cb_incref(block_cb); + + return block; +} + +static void prestera_flow_block_put(struct prestera_flow_block *block) +{ + struct flow_block_cb *block_cb = block->block_cb; + + if (flow_block_cb_decref(block_cb)) + return; + + flow_block_cb_free(block_cb); + prestera_flow_block_destroy(block); +} + +static int prestera_setup_flow_block_bind(struct prestera_port *port, + struct flow_block_offload *f, bool ingress) +{ + struct prestera_switch *sw = port->sw; + struct prestera_flow_block *block; + struct flow_block_cb *block_cb; + bool register_block; + int err; + + block = prestera_flow_block_get(sw, f, ®ister_block, ingress); + if (IS_ERR(block)) + return PTR_ERR(block); + + block_cb = block->block_cb; + + err = prestera_flow_block_bind(block, port); + if (err) + goto err_block_bind; + + if (register_block) { + flow_block_cb_add(block_cb, f); + list_add_tail(&block_cb->driver_list, &prestera_block_cb_list); + } + + if (ingress) + port->ingress_flow_block = block; + else + port->egress_flow_block = block; + + return 0; + +err_block_bind: + prestera_flow_block_put(block); + + return err; +} + +static void prestera_setup_flow_block_unbind(struct prestera_port *port, + struct flow_block_offload *f, bool ingress) +{ + struct prestera_switch *sw = port->sw; + struct prestera_flow_block *block; + struct flow_block_cb *block_cb; + int err; + + block_cb = flow_block_cb_lookup(f->block, prestera_flow_block_cb, sw); + if (!block_cb) + return; + + block = flow_block_cb_priv(block_cb); + + prestera_mall_destroy(block); + + err = prestera_flow_block_unbind(block, port); + if (err) + goto error; + + if (!flow_block_cb_decref(block_cb)) { + flow_block_cb_remove(block_cb, f); + list_del(&block_cb->driver_list); + } +error: + if (ingress) + port->ingress_flow_block = NULL; + else + port->egress_flow_block = NULL; +} + +static int prestera_setup_flow_block_clsact(struct prestera_port *port, + struct flow_block_offload *f, + bool ingress) +{ + f->driver_block_list = &prestera_block_cb_list; + + switch (f->command) { + case FLOW_BLOCK_BIND: + return prestera_setup_flow_block_bind(port, f, ingress); + case FLOW_BLOCK_UNBIND: + prestera_setup_flow_block_unbind(port, f, ingress); + return 0; + default: + return -EOPNOTSUPP; + } +} + +int prestera_flow_block_setup(struct prestera_port *port, + struct flow_block_offload *f) +{ + switch (f->binder_type) { + case FLOW_BLOCK_BINDER_TYPE_CLSACT_INGRESS: + return prestera_setup_flow_block_clsact(port, f, true); + case FLOW_BLOCK_BINDER_TYPE_CLSACT_EGRESS: + return prestera_setup_flow_block_clsact(port, f, false); + default: + return -EOPNOTSUPP; + } +} diff --git a/drivers/net/ethernet/marvell/prestera/prestera_flow.h b/drivers/net/ethernet/marvell/prestera/prestera_flow.h new file mode 100644 index 000000000..a85a3eb40 --- /dev/null +++ b/drivers/net/ethernet/marvell/prestera/prestera_flow.h @@ -0,0 +1,37 @@ +/* SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0 */ +/* Copyright (c) 2020 Marvell International Ltd. All rights reserved. */ + +#ifndef _PRESTERA_FLOW_H_ +#define _PRESTERA_FLOW_H_ + +#include <net/flow_offload.h> + +struct prestera_port; +struct prestera_switch; + +struct prestera_flow_block_binding { + struct list_head list; + struct prestera_port *port; + int span_id; +}; + +struct prestera_flow_block { + struct list_head binding_list; + struct prestera_switch *sw; + struct net *net; + struct prestera_acl_ruleset *ruleset_zero; + struct flow_block_cb *block_cb; + struct list_head template_list; + struct { + u32 prio_min; + u32 prio_max; + bool bound; + } mall; + unsigned int rule_count; + bool ingress; +}; + +int prestera_flow_block_setup(struct prestera_port *port, + struct flow_block_offload *f); + +#endif /* _PRESTERA_FLOW_H_ */ diff --git a/drivers/net/ethernet/marvell/prestera/prestera_flower.c b/drivers/net/ethernet/marvell/prestera/prestera_flower.c new file mode 100644 index 000000000..91a478b75 --- /dev/null +++ b/drivers/net/ethernet/marvell/prestera/prestera_flower.c @@ -0,0 +1,575 @@ +// SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0 +/* Copyright (c) 2020 Marvell International Ltd. All rights reserved */ + +#include "prestera.h" +#include "prestera_acl.h" +#include "prestera_flow.h" +#include "prestera_flower.h" +#include "prestera_matchall.h" + +struct prestera_flower_template { + struct prestera_acl_ruleset *ruleset; + struct list_head list; + u32 chain_index; +}; + +static void +prestera_flower_template_free(struct prestera_flower_template *template) +{ + prestera_acl_ruleset_put(template->ruleset); + list_del(&template->list); + kfree(template); +} + +void prestera_flower_template_cleanup(struct prestera_flow_block *block) +{ + struct prestera_flower_template *template, *tmp; + + /* put the reference to all rulesets kept in tmpl create */ + list_for_each_entry_safe(template, tmp, &block->template_list, list) + prestera_flower_template_free(template); +} + +static int +prestera_flower_parse_goto_action(struct prestera_flow_block *block, + struct prestera_acl_rule *rule, + u32 chain_index, + const struct flow_action_entry *act) +{ + struct prestera_acl_ruleset *ruleset; + + if (act->chain_index <= chain_index) + /* we can jump only forward */ + return -EINVAL; + + if (rule->re_arg.jump.valid) + return -EEXIST; + + ruleset = prestera_acl_ruleset_get(block->sw->acl, block, + act->chain_index); + if (IS_ERR(ruleset)) + return PTR_ERR(ruleset); + + rule->re_arg.jump.valid = 1; + rule->re_arg.jump.i.index = prestera_acl_ruleset_index_get(ruleset); + + rule->jump_ruleset = ruleset; + + return 0; +} + +static int prestera_flower_parse_actions(struct prestera_flow_block *block, + struct prestera_acl_rule *rule, + struct flow_action *flow_action, + u32 chain_index, + struct netlink_ext_ack *extack) +{ + const struct flow_action_entry *act; + int err, i; + + /* whole struct (rule->re_arg) must be initialized with 0 */ + if (!flow_action_has_entries(flow_action)) + return 0; + + if (!flow_action_mixed_hw_stats_check(flow_action, extack)) + return -EOPNOTSUPP; + + act = flow_action_first_entry_get(flow_action); + if (act->hw_stats & FLOW_ACTION_HW_STATS_DISABLED) { + /* Nothing to do */ + } else if (act->hw_stats & FLOW_ACTION_HW_STATS_DELAYED) { + /* setup counter first */ + rule->re_arg.count.valid = true; + err = prestera_acl_chain_to_client(chain_index, block->ingress, + &rule->re_arg.count.client); + if (err) + return err; + } else { + NL_SET_ERR_MSG_MOD(extack, "Unsupported action HW stats type"); + return -EOPNOTSUPP; + } + + flow_action_for_each(i, act, flow_action) { + switch (act->id) { + case FLOW_ACTION_ACCEPT: + if (rule->re_arg.accept.valid) + return -EEXIST; + + rule->re_arg.accept.valid = 1; + break; + case FLOW_ACTION_DROP: + if (rule->re_arg.drop.valid) + return -EEXIST; + + rule->re_arg.drop.valid = 1; + break; + case FLOW_ACTION_TRAP: + if (rule->re_arg.trap.valid) + return -EEXIST; + + rule->re_arg.trap.valid = 1; + break; + case FLOW_ACTION_POLICE: + if (rule->re_arg.police.valid) + return -EEXIST; + + rule->re_arg.police.valid = 1; + rule->re_arg.police.rate = + act->police.rate_bytes_ps; + rule->re_arg.police.burst = act->police.burst; + rule->re_arg.police.ingress = block->ingress; + break; + case FLOW_ACTION_GOTO: + err = prestera_flower_parse_goto_action(block, rule, + chain_index, + act); + if (err) + return err; + break; + default: + NL_SET_ERR_MSG_MOD(extack, "Unsupported action"); + pr_err("Unsupported action\n"); + return -EOPNOTSUPP; + } + } + + return 0; +} + +static int prestera_flower_parse_meta(struct prestera_acl_rule *rule, + struct flow_cls_offload *f, + struct prestera_flow_block *block) +{ + struct flow_rule *f_rule = flow_cls_offload_flow_rule(f); + struct prestera_acl_match *r_match = &rule->re_key.match; + struct prestera_port *port; + struct net_device *ingress_dev; + struct flow_match_meta match; + __be16 key, mask; + + flow_rule_match_meta(f_rule, &match); + if (match.mask->ingress_ifindex != 0xFFFFFFFF) { + NL_SET_ERR_MSG_MOD(f->common.extack, + "Unsupported ingress ifindex mask"); + return -EINVAL; + } + + ingress_dev = __dev_get_by_index(block->net, + match.key->ingress_ifindex); + if (!ingress_dev) { + NL_SET_ERR_MSG_MOD(f->common.extack, + "Can't find specified ingress port to match on"); + return -EINVAL; + } + + if (!prestera_netdev_check(ingress_dev)) { + NL_SET_ERR_MSG_MOD(f->common.extack, + "Can't match on switchdev ingress port"); + return -EINVAL; + } + port = netdev_priv(ingress_dev); + + mask = htons(0x1FFF << 3); + key = htons(port->hw_id << 3); + rule_match_set(r_match->key, SYS_PORT, key); + rule_match_set(r_match->mask, SYS_PORT, mask); + + mask = htons(0x3FF); + key = htons(port->dev_id); + rule_match_set(r_match->key, SYS_DEV, key); + rule_match_set(r_match->mask, SYS_DEV, mask); + + return 0; +} + +static int prestera_flower_parse(struct prestera_flow_block *block, + struct prestera_acl_rule *rule, + struct flow_cls_offload *f) +{ + struct flow_rule *f_rule = flow_cls_offload_flow_rule(f); + struct flow_dissector *dissector = f_rule->match.dissector; + struct prestera_acl_match *r_match = &rule->re_key.match; + __be16 n_proto_mask = 0; + __be16 n_proto_key = 0; + u16 addr_type = 0; + u8 ip_proto = 0; + int err; + + if (dissector->used_keys & + ~(BIT(FLOW_DISSECTOR_KEY_META) | + BIT(FLOW_DISSECTOR_KEY_CONTROL) | + BIT(FLOW_DISSECTOR_KEY_BASIC) | + BIT(FLOW_DISSECTOR_KEY_ETH_ADDRS) | + BIT(FLOW_DISSECTOR_KEY_IPV4_ADDRS) | + BIT(FLOW_DISSECTOR_KEY_IPV6_ADDRS) | + BIT(FLOW_DISSECTOR_KEY_ICMP) | + BIT(FLOW_DISSECTOR_KEY_PORTS) | + BIT(FLOW_DISSECTOR_KEY_PORTS_RANGE) | + BIT(FLOW_DISSECTOR_KEY_VLAN))) { + NL_SET_ERR_MSG_MOD(f->common.extack, "Unsupported key"); + return -EOPNOTSUPP; + } + + prestera_acl_rule_priority_set(rule, f->common.prio); + + if (flow_rule_match_key(f_rule, FLOW_DISSECTOR_KEY_META)) { + err = prestera_flower_parse_meta(rule, f, block); + if (err) + return err; + } + + if (flow_rule_match_key(f_rule, FLOW_DISSECTOR_KEY_CONTROL)) { + struct flow_match_control match; + + flow_rule_match_control(f_rule, &match); + addr_type = match.key->addr_type; + } + + if (flow_rule_match_key(f_rule, FLOW_DISSECTOR_KEY_BASIC)) { + struct flow_match_basic match; + + flow_rule_match_basic(f_rule, &match); + n_proto_key = match.key->n_proto; + n_proto_mask = match.mask->n_proto; + + if (ntohs(match.key->n_proto) == ETH_P_ALL) { + n_proto_key = 0; + n_proto_mask = 0; + } + + rule_match_set(r_match->key, ETH_TYPE, n_proto_key); + rule_match_set(r_match->mask, ETH_TYPE, n_proto_mask); + + rule_match_set(r_match->key, IP_PROTO, match.key->ip_proto); + rule_match_set(r_match->mask, IP_PROTO, match.mask->ip_proto); + ip_proto = match.key->ip_proto; + } + + if (flow_rule_match_key(f_rule, FLOW_DISSECTOR_KEY_ETH_ADDRS)) { + struct flow_match_eth_addrs match; + + flow_rule_match_eth_addrs(f_rule, &match); + + /* DA key, mask */ + rule_match_set_n(r_match->key, + ETH_DMAC_0, &match.key->dst[0], 4); + rule_match_set_n(r_match->key, + ETH_DMAC_1, &match.key->dst[4], 2); + + rule_match_set_n(r_match->mask, + ETH_DMAC_0, &match.mask->dst[0], 4); + rule_match_set_n(r_match->mask, + ETH_DMAC_1, &match.mask->dst[4], 2); + + /* SA key, mask */ + rule_match_set_n(r_match->key, + ETH_SMAC_0, &match.key->src[0], 4); + rule_match_set_n(r_match->key, + ETH_SMAC_1, &match.key->src[4], 2); + + rule_match_set_n(r_match->mask, + ETH_SMAC_0, &match.mask->src[0], 4); + rule_match_set_n(r_match->mask, + ETH_SMAC_1, &match.mask->src[4], 2); + } + + if (addr_type == FLOW_DISSECTOR_KEY_IPV4_ADDRS) { + struct flow_match_ipv4_addrs match; + + flow_rule_match_ipv4_addrs(f_rule, &match); + + rule_match_set(r_match->key, IP_SRC, match.key->src); + rule_match_set(r_match->mask, IP_SRC, match.mask->src); + + rule_match_set(r_match->key, IP_DST, match.key->dst); + rule_match_set(r_match->mask, IP_DST, match.mask->dst); + } + + if (flow_rule_match_key(f_rule, FLOW_DISSECTOR_KEY_PORTS)) { + struct flow_match_ports match; + + if (ip_proto != IPPROTO_TCP && ip_proto != IPPROTO_UDP) { + NL_SET_ERR_MSG_MOD + (f->common.extack, + "Only UDP and TCP keys are supported"); + return -EINVAL; + } + + flow_rule_match_ports(f_rule, &match); + + rule_match_set(r_match->key, L4_PORT_SRC, match.key->src); + rule_match_set(r_match->mask, L4_PORT_SRC, match.mask->src); + + rule_match_set(r_match->key, L4_PORT_DST, match.key->dst); + rule_match_set(r_match->mask, L4_PORT_DST, match.mask->dst); + } + + if (flow_rule_match_key(f_rule, FLOW_DISSECTOR_KEY_PORTS_RANGE)) { + struct flow_match_ports_range match; + __be32 tp_key, tp_mask; + + flow_rule_match_ports_range(f_rule, &match); + + /* src port range (min, max) */ + tp_key = htonl(ntohs(match.key->tp_min.src) | + (ntohs(match.key->tp_max.src) << 16)); + tp_mask = htonl(ntohs(match.mask->tp_min.src) | + (ntohs(match.mask->tp_max.src) << 16)); + rule_match_set(r_match->key, L4_PORT_RANGE_SRC, tp_key); + rule_match_set(r_match->mask, L4_PORT_RANGE_SRC, tp_mask); + + /* dst port range (min, max) */ + tp_key = htonl(ntohs(match.key->tp_min.dst) | + (ntohs(match.key->tp_max.dst) << 16)); + tp_mask = htonl(ntohs(match.mask->tp_min.dst) | + (ntohs(match.mask->tp_max.dst) << 16)); + rule_match_set(r_match->key, L4_PORT_RANGE_DST, tp_key); + rule_match_set(r_match->mask, L4_PORT_RANGE_DST, tp_mask); + } + + if (flow_rule_match_key(f_rule, FLOW_DISSECTOR_KEY_VLAN)) { + struct flow_match_vlan match; + + flow_rule_match_vlan(f_rule, &match); + + if (match.mask->vlan_id != 0) { + __be16 key = cpu_to_be16(match.key->vlan_id); + __be16 mask = cpu_to_be16(match.mask->vlan_id); + + rule_match_set(r_match->key, VLAN_ID, key); + rule_match_set(r_match->mask, VLAN_ID, mask); + } + + rule_match_set(r_match->key, VLAN_TPID, match.key->vlan_tpid); + rule_match_set(r_match->mask, VLAN_TPID, match.mask->vlan_tpid); + } + + if (flow_rule_match_key(f_rule, FLOW_DISSECTOR_KEY_ICMP)) { + struct flow_match_icmp match; + + flow_rule_match_icmp(f_rule, &match); + + rule_match_set(r_match->key, ICMP_TYPE, match.key->type); + rule_match_set(r_match->mask, ICMP_TYPE, match.mask->type); + + rule_match_set(r_match->key, ICMP_CODE, match.key->code); + rule_match_set(r_match->mask, ICMP_CODE, match.mask->code); + } + + return prestera_flower_parse_actions(block, rule, &f->rule->action, + f->common.chain_index, + f->common.extack); +} + +static int prestera_flower_prio_check(struct prestera_flow_block *block, + struct flow_cls_offload *f) +{ + u32 mall_prio_min; + u32 mall_prio_max; + int err; + + err = prestera_mall_prio_get(block, &mall_prio_min, &mall_prio_max); + if (err == -ENOENT) + /* No matchall filters installed on this chain. */ + return 0; + + if (err) { + NL_SET_ERR_MSG(f->common.extack, "Failed to get matchall priorities"); + return err; + } + + if (f->common.prio <= mall_prio_max && block->ingress) { + NL_SET_ERR_MSG(f->common.extack, + "Failed to add in front of existing matchall rules"); + return -EOPNOTSUPP; + } + if (f->common.prio >= mall_prio_min && !block->ingress) { + NL_SET_ERR_MSG(f->common.extack, "Failed to add behind of existing matchall rules"); + return -EOPNOTSUPP; + } + + return 0; +} + +int prestera_flower_prio_get(struct prestera_flow_block *block, u32 chain_index, + u32 *prio_min, u32 *prio_max) +{ + struct prestera_acl_ruleset *ruleset; + + ruleset = prestera_acl_ruleset_lookup(block->sw->acl, block, chain_index); + if (IS_ERR(ruleset)) + return PTR_ERR(ruleset); + + prestera_acl_ruleset_prio_get(ruleset, prio_min, prio_max); + return 0; +} + +int prestera_flower_replace(struct prestera_flow_block *block, + struct flow_cls_offload *f) +{ + struct prestera_acl_ruleset *ruleset; + struct prestera_acl *acl = block->sw->acl; + struct prestera_acl_rule *rule; + int err; + + err = prestera_flower_prio_check(block, f); + if (err) + return err; + + ruleset = prestera_acl_ruleset_get(acl, block, f->common.chain_index); + if (IS_ERR(ruleset)) + return PTR_ERR(ruleset); + + /* increments the ruleset reference */ + rule = prestera_acl_rule_create(ruleset, f->cookie, + f->common.chain_index); + if (IS_ERR(rule)) { + err = PTR_ERR(rule); + goto err_rule_create; + } + + err = prestera_flower_parse(block, rule, f); + if (err) + goto err_rule_add; + + if (!prestera_acl_ruleset_is_offload(ruleset)) { + err = prestera_acl_ruleset_offload(ruleset); + if (err) + goto err_ruleset_offload; + } + + err = prestera_acl_rule_add(block->sw, rule); + if (err) + goto err_rule_add; + + prestera_acl_ruleset_put(ruleset); + return 0; + +err_ruleset_offload: +err_rule_add: + prestera_acl_rule_destroy(rule); +err_rule_create: + prestera_acl_ruleset_put(ruleset); + return err; +} + +void prestera_flower_destroy(struct prestera_flow_block *block, + struct flow_cls_offload *f) +{ + struct prestera_acl_ruleset *ruleset; + struct prestera_acl_rule *rule; + + ruleset = prestera_acl_ruleset_lookup(block->sw->acl, block, + f->common.chain_index); + if (IS_ERR(ruleset)) + return; + + rule = prestera_acl_rule_lookup(ruleset, f->cookie); + if (rule) { + prestera_acl_rule_del(block->sw, rule); + prestera_acl_rule_destroy(rule); + } + prestera_acl_ruleset_put(ruleset); +} + +int prestera_flower_tmplt_create(struct prestera_flow_block *block, + struct flow_cls_offload *f) +{ + struct prestera_flower_template *template; + struct prestera_acl_ruleset *ruleset; + struct prestera_acl_rule rule; + int err; + + memset(&rule, 0, sizeof(rule)); + err = prestera_flower_parse(block, &rule, f); + if (err) + return err; + + template = kmalloc(sizeof(*template), GFP_KERNEL); + if (!template) { + err = -ENOMEM; + goto err_malloc; + } + + prestera_acl_rule_keymask_pcl_id_set(&rule, 0); + ruleset = prestera_acl_ruleset_get(block->sw->acl, block, + f->common.chain_index); + if (IS_ERR_OR_NULL(ruleset)) { + err = -EINVAL; + goto err_ruleset_get; + } + + /* preserve keymask/template to this ruleset */ + err = prestera_acl_ruleset_keymask_set(ruleset, rule.re_key.match.mask); + if (err) + goto err_ruleset_keymask_set; + + /* skip error, as it is not possible to reject template operation, + * so, keep the reference to the ruleset for rules to be added + * to that ruleset later. In case of offload fail, the ruleset + * will be offloaded again during adding a new rule. Also, + * unlikly possble that ruleset is already offloaded at this staage. + */ + prestera_acl_ruleset_offload(ruleset); + + /* keep the reference to the ruleset */ + template->ruleset = ruleset; + template->chain_index = f->common.chain_index; + list_add_rcu(&template->list, &block->template_list); + return 0; + +err_ruleset_keymask_set: + prestera_acl_ruleset_put(ruleset); +err_ruleset_get: + kfree(template); +err_malloc: + NL_SET_ERR_MSG_MOD(f->common.extack, "Create chain template failed"); + return err; +} + +void prestera_flower_tmplt_destroy(struct prestera_flow_block *block, + struct flow_cls_offload *f) +{ + struct prestera_flower_template *template, *tmp; + + list_for_each_entry_safe(template, tmp, &block->template_list, list) + if (template->chain_index == f->common.chain_index) { + /* put the reference to the ruleset kept in create */ + prestera_flower_template_free(template); + return; + } +} + +int prestera_flower_stats(struct prestera_flow_block *block, + struct flow_cls_offload *f) +{ + struct prestera_acl_ruleset *ruleset; + struct prestera_acl_rule *rule; + u64 packets; + u64 lastuse; + u64 bytes; + int err; + + ruleset = prestera_acl_ruleset_lookup(block->sw->acl, block, + f->common.chain_index); + if (IS_ERR(ruleset)) + return PTR_ERR(ruleset); + + rule = prestera_acl_rule_lookup(ruleset, f->cookie); + if (!rule) { + err = -EINVAL; + goto err_rule_get_stats; + } + + err = prestera_acl_rule_get_stats(block->sw->acl, rule, &packets, + &bytes, &lastuse); + if (err) + goto err_rule_get_stats; + + flow_stats_update(&f->stats, bytes, packets, 0, lastuse, + FLOW_ACTION_HW_STATS_DELAYED); + +err_rule_get_stats: + prestera_acl_ruleset_put(ruleset); + return err; +} diff --git a/drivers/net/ethernet/marvell/prestera/prestera_flower.h b/drivers/net/ethernet/marvell/prestera/prestera_flower.h new file mode 100644 index 000000000..1181115fe --- /dev/null +++ b/drivers/net/ethernet/marvell/prestera/prestera_flower.h @@ -0,0 +1,25 @@ +/* SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0 */ +/* Copyright (c) 2020-2021 Marvell International Ltd. All rights reserved. */ + +#ifndef _PRESTERA_FLOWER_H_ +#define _PRESTERA_FLOWER_H_ + +#include <net/pkt_cls.h> + +struct prestera_flow_block; + +int prestera_flower_replace(struct prestera_flow_block *block, + struct flow_cls_offload *f); +void prestera_flower_destroy(struct prestera_flow_block *block, + struct flow_cls_offload *f); +int prestera_flower_stats(struct prestera_flow_block *block, + struct flow_cls_offload *f); +int prestera_flower_tmplt_create(struct prestera_flow_block *block, + struct flow_cls_offload *f); +void prestera_flower_tmplt_destroy(struct prestera_flow_block *block, + struct flow_cls_offload *f); +void prestera_flower_template_cleanup(struct prestera_flow_block *block); +int prestera_flower_prio_get(struct prestera_flow_block *block, u32 chain_index, + u32 *prio_min, u32 *prio_max); + +#endif /* _PRESTERA_FLOWER_H_ */ diff --git a/drivers/net/ethernet/marvell/prestera/prestera_hw.c b/drivers/net/ethernet/marvell/prestera/prestera_hw.c new file mode 100644 index 000000000..fc6f7d274 --- /dev/null +++ b/drivers/net/ethernet/marvell/prestera/prestera_hw.c @@ -0,0 +1,2561 @@ +// SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0 +/* Copyright (c) 2019-2020 Marvell International Ltd. All rights reserved */ + +#include <linux/etherdevice.h> +#include <linux/if_bridge.h> +#include <linux/ethtool.h> +#include <linux/list.h> + +#include "prestera.h" +#include "prestera_hw.h" +#include "prestera_acl.h" +#include "prestera_counter.h" +#include "prestera_router_hw.h" + +#define PRESTERA_SWITCH_INIT_TIMEOUT_MS (30 * 1000) + +#define PRESTERA_MIN_MTU 64 + +#define PRESTERA_MSG_CHUNK_SIZE 1024 + +enum prestera_cmd_type_t { + PRESTERA_CMD_TYPE_SWITCH_INIT = 0x1, + PRESTERA_CMD_TYPE_SWITCH_ATTR_SET = 0x2, + + PRESTERA_CMD_TYPE_PORT_ATTR_SET = 0x100, + PRESTERA_CMD_TYPE_PORT_ATTR_GET = 0x101, + PRESTERA_CMD_TYPE_PORT_INFO_GET = 0x110, + + PRESTERA_CMD_TYPE_VLAN_CREATE = 0x200, + PRESTERA_CMD_TYPE_VLAN_DELETE = 0x201, + PRESTERA_CMD_TYPE_VLAN_PORT_SET = 0x202, + PRESTERA_CMD_TYPE_VLAN_PVID_SET = 0x203, + + PRESTERA_CMD_TYPE_FDB_ADD = 0x300, + PRESTERA_CMD_TYPE_FDB_DELETE = 0x301, + PRESTERA_CMD_TYPE_FDB_FLUSH_PORT = 0x310, + PRESTERA_CMD_TYPE_FDB_FLUSH_VLAN = 0x311, + PRESTERA_CMD_TYPE_FDB_FLUSH_PORT_VLAN = 0x312, + + PRESTERA_CMD_TYPE_BRIDGE_CREATE = 0x400, + PRESTERA_CMD_TYPE_BRIDGE_DELETE = 0x401, + PRESTERA_CMD_TYPE_BRIDGE_PORT_ADD = 0x402, + PRESTERA_CMD_TYPE_BRIDGE_PORT_DELETE = 0x403, + + PRESTERA_CMD_TYPE_COUNTER_GET = 0x510, + PRESTERA_CMD_TYPE_COUNTER_ABORT = 0x511, + PRESTERA_CMD_TYPE_COUNTER_TRIGGER = 0x512, + PRESTERA_CMD_TYPE_COUNTER_BLOCK_GET = 0x513, + PRESTERA_CMD_TYPE_COUNTER_BLOCK_RELEASE = 0x514, + PRESTERA_CMD_TYPE_COUNTER_CLEAR = 0x515, + + PRESTERA_CMD_TYPE_VTCAM_CREATE = 0x540, + PRESTERA_CMD_TYPE_VTCAM_DESTROY = 0x541, + PRESTERA_CMD_TYPE_VTCAM_RULE_ADD = 0x550, + PRESTERA_CMD_TYPE_VTCAM_RULE_DELETE = 0x551, + PRESTERA_CMD_TYPE_VTCAM_IFACE_BIND = 0x560, + PRESTERA_CMD_TYPE_VTCAM_IFACE_UNBIND = 0x561, + + PRESTERA_CMD_TYPE_ROUTER_RIF_CREATE = 0x600, + PRESTERA_CMD_TYPE_ROUTER_RIF_DELETE = 0x601, + PRESTERA_CMD_TYPE_ROUTER_LPM_ADD = 0x610, + PRESTERA_CMD_TYPE_ROUTER_LPM_DELETE = 0x611, + PRESTERA_CMD_TYPE_ROUTER_NH_GRP_SET = 0x622, + PRESTERA_CMD_TYPE_ROUTER_NH_GRP_BLK_GET = 0x645, + PRESTERA_CMD_TYPE_ROUTER_NH_GRP_ADD = 0x623, + PRESTERA_CMD_TYPE_ROUTER_NH_GRP_DELETE = 0x624, + PRESTERA_CMD_TYPE_ROUTER_VR_CREATE = 0x630, + PRESTERA_CMD_TYPE_ROUTER_VR_DELETE = 0x631, + + PRESTERA_CMD_TYPE_FLOOD_DOMAIN_CREATE = 0x700, + PRESTERA_CMD_TYPE_FLOOD_DOMAIN_DESTROY = 0x701, + PRESTERA_CMD_TYPE_FLOOD_DOMAIN_PORTS_SET = 0x702, + PRESTERA_CMD_TYPE_FLOOD_DOMAIN_PORTS_RESET = 0x703, + + PRESTERA_CMD_TYPE_MDB_CREATE = 0x704, + PRESTERA_CMD_TYPE_MDB_DESTROY = 0x705, + + PRESTERA_CMD_TYPE_RXTX_INIT = 0x800, + + PRESTERA_CMD_TYPE_LAG_MEMBER_ADD = 0x900, + PRESTERA_CMD_TYPE_LAG_MEMBER_DELETE = 0x901, + PRESTERA_CMD_TYPE_LAG_MEMBER_ENABLE = 0x902, + PRESTERA_CMD_TYPE_LAG_MEMBER_DISABLE = 0x903, + + PRESTERA_CMD_TYPE_STP_PORT_SET = 0x1000, + + PRESTERA_CMD_TYPE_SPAN_GET = 0x1100, + PRESTERA_CMD_TYPE_SPAN_INGRESS_BIND = 0x1101, + PRESTERA_CMD_TYPE_SPAN_INGRESS_UNBIND = 0x1102, + PRESTERA_CMD_TYPE_SPAN_RELEASE = 0x1103, + PRESTERA_CMD_TYPE_SPAN_EGRESS_BIND = 0x1104, + PRESTERA_CMD_TYPE_SPAN_EGRESS_UNBIND = 0x1105, + + PRESTERA_CMD_TYPE_POLICER_CREATE = 0x1500, + PRESTERA_CMD_TYPE_POLICER_RELEASE = 0x1501, + PRESTERA_CMD_TYPE_POLICER_SET = 0x1502, + + PRESTERA_CMD_TYPE_CPU_CODE_COUNTERS_GET = 0x2000, + + PRESTERA_CMD_TYPE_ACK = 0x10000, + PRESTERA_CMD_TYPE_MAX +}; + +enum { + PRESTERA_CMD_PORT_ATTR_ADMIN_STATE = 1, + PRESTERA_CMD_PORT_ATTR_MTU = 3, + PRESTERA_CMD_PORT_ATTR_MAC = 4, + PRESTERA_CMD_PORT_ATTR_SPEED = 5, + PRESTERA_CMD_PORT_ATTR_ACCEPT_FRAME_TYPE = 6, + PRESTERA_CMD_PORT_ATTR_LEARNING = 7, + PRESTERA_CMD_PORT_ATTR_FLOOD = 8, + PRESTERA_CMD_PORT_ATTR_CAPABILITY = 9, + PRESTERA_CMD_PORT_ATTR_LOCKED = 10, + PRESTERA_CMD_PORT_ATTR_PHY_MODE = 12, + PRESTERA_CMD_PORT_ATTR_TYPE = 13, + PRESTERA_CMD_PORT_ATTR_STATS = 17, + PRESTERA_CMD_PORT_ATTR_MAC_AUTONEG_RESTART = 18, + PRESTERA_CMD_PORT_ATTR_PHY_AUTONEG_RESTART = 19, + PRESTERA_CMD_PORT_ATTR_MAC_MODE = 22, +}; + +enum { + PRESTERA_CMD_SWITCH_ATTR_MAC = 1, + PRESTERA_CMD_SWITCH_ATTR_AGEING = 2, +}; + +enum { + PRESTERA_CMD_ACK_OK, + PRESTERA_CMD_ACK_FAILED, + + PRESTERA_CMD_ACK_MAX +}; + +enum { + PRESTERA_PORT_TP_NA, + PRESTERA_PORT_TP_MDI, + PRESTERA_PORT_TP_MDIX, + PRESTERA_PORT_TP_AUTO, +}; + +enum { + PRESTERA_PORT_FLOOD_TYPE_UC = 0, + PRESTERA_PORT_FLOOD_TYPE_MC = 1, +}; + +enum { + PRESTERA_PORT_GOOD_OCTETS_RCV_CNT, + PRESTERA_PORT_BAD_OCTETS_RCV_CNT, + PRESTERA_PORT_MAC_TRANSMIT_ERR_CNT, + PRESTERA_PORT_BRDC_PKTS_RCV_CNT, + PRESTERA_PORT_MC_PKTS_RCV_CNT, + PRESTERA_PORT_PKTS_64L_CNT, + PRESTERA_PORT_PKTS_65TO127L_CNT, + PRESTERA_PORT_PKTS_128TO255L_CNT, + PRESTERA_PORT_PKTS_256TO511L_CNT, + PRESTERA_PORT_PKTS_512TO1023L_CNT, + PRESTERA_PORT_PKTS_1024TOMAXL_CNT, + PRESTERA_PORT_EXCESSIVE_COLLISIONS_CNT, + PRESTERA_PORT_MC_PKTS_SENT_CNT, + PRESTERA_PORT_BRDC_PKTS_SENT_CNT, + PRESTERA_PORT_FC_SENT_CNT, + PRESTERA_PORT_GOOD_FC_RCV_CNT, + PRESTERA_PORT_DROP_EVENTS_CNT, + PRESTERA_PORT_UNDERSIZE_PKTS_CNT, + PRESTERA_PORT_FRAGMENTS_PKTS_CNT, + PRESTERA_PORT_OVERSIZE_PKTS_CNT, + PRESTERA_PORT_JABBER_PKTS_CNT, + PRESTERA_PORT_MAC_RCV_ERROR_CNT, + PRESTERA_PORT_BAD_CRC_CNT, + PRESTERA_PORT_COLLISIONS_CNT, + PRESTERA_PORT_LATE_COLLISIONS_CNT, + PRESTERA_PORT_GOOD_UC_PKTS_RCV_CNT, + PRESTERA_PORT_GOOD_UC_PKTS_SENT_CNT, + PRESTERA_PORT_MULTIPLE_PKTS_SENT_CNT, + PRESTERA_PORT_DEFERRED_PKTS_SENT_CNT, + PRESTERA_PORT_GOOD_OCTETS_SENT_CNT, + + PRESTERA_PORT_CNT_MAX +}; + +enum { + PRESTERA_FC_NONE, + PRESTERA_FC_SYMMETRIC, + PRESTERA_FC_ASYMMETRIC, + PRESTERA_FC_SYMM_ASYMM, +}; + +enum { + PRESTERA_POLICER_MODE_SR_TCM +}; + +enum { + PRESTERA_HW_FDB_ENTRY_TYPE_REG_PORT = 0, + PRESTERA_HW_FDB_ENTRY_TYPE_LAG = 1, + PRESTERA_HW_FDB_ENTRY_TYPE_MAX = 2, +}; + +struct prestera_fw_event_handler { + struct list_head list; + struct rcu_head rcu; + enum prestera_event_type type; + prestera_event_cb_t func; + void *arg; +}; + +enum { + PRESTERA_HW_FLOOD_DOMAIN_PORT_TYPE_REG_PORT = 0, + PRESTERA_HW_FLOOD_DOMAIN_PORT_TYPE_LAG = 1, + PRESTERA_HW_FLOOD_DOMAIN_PORT_TYPE_MAX = 2, +}; + +struct prestera_msg_cmd { + __le32 type; +}; + +struct prestera_msg_ret { + struct prestera_msg_cmd cmd; + __le32 status; +}; + +struct prestera_msg_common_req { + struct prestera_msg_cmd cmd; +}; + +struct prestera_msg_common_resp { + struct prestera_msg_ret ret; +}; + +struct prestera_msg_switch_attr_req { + struct prestera_msg_cmd cmd; + __le32 attr; + union { + __le32 ageing_timeout_ms; + struct { + u8 mac[ETH_ALEN]; + u8 __pad[2]; + }; + } param; +}; + +struct prestera_msg_switch_init_resp { + struct prestera_msg_ret ret; + __le32 port_count; + __le32 mtu_max; + __le32 size_tbl_router_nexthop; + u8 switch_id; + u8 lag_max; + u8 lag_member_max; +}; + +struct prestera_msg_event_port_param { + union { + struct { + __le32 mode; + __le32 speed; + u8 oper; + u8 duplex; + u8 fc; + u8 fec; + } mac; + struct { + __le64 lmode_bmap; + u8 mdix; + u8 fc; + u8 __pad[2]; + } __packed phy; /* make sure always 12 bytes size */ + }; +}; + +struct prestera_msg_port_cap_param { + __le64 link_mode; + u8 type; + u8 fec; + u8 fc; + u8 transceiver; +}; + +struct prestera_msg_port_flood_param { + u8 type; + u8 enable; + u8 __pad[2]; +}; + +union prestera_msg_port_param { + __le32 mtu; + __le32 speed; + __le32 link_mode; + u8 admin_state; + u8 oper_state; + u8 mac[ETH_ALEN]; + u8 accept_frm_type; + u8 learning; + u8 flood; + u8 type; + u8 duplex; + u8 fec; + u8 fc; + u8 br_locked; + union { + struct { + u8 admin; + u8 fc; + u8 ap_enable; + u8 __reserved[5]; + union { + struct { + __le32 mode; + __le32 speed; + u8 inband; + u8 duplex; + u8 fec; + u8 fec_supp; + } reg_mode; + struct { + __le32 mode; + __le32 speed; + u8 fec; + u8 fec_supp; + u8 __pad[2]; + } ap_modes[PRESTERA_AP_PORT_MAX]; + }; + } mac; + struct { + __le64 modes; + __le32 mode; + u8 admin; + u8 adv_enable; + u8 mdix; + u8 __pad; + } phy; + } link; + + struct prestera_msg_port_cap_param cap; + struct prestera_msg_port_flood_param flood_ext; + struct prestera_msg_event_port_param link_evt; +}; + +struct prestera_msg_port_attr_req { + struct prestera_msg_cmd cmd; + __le32 attr; + __le32 port; + __le32 dev; + union prestera_msg_port_param param; +}; + +struct prestera_msg_port_attr_resp { + struct prestera_msg_ret ret; + union prestera_msg_port_param param; +}; + +struct prestera_msg_port_stats_resp { + struct prestera_msg_ret ret; + __le64 stats[PRESTERA_PORT_CNT_MAX]; +}; + +struct prestera_msg_port_info_req { + struct prestera_msg_cmd cmd; + __le32 port; +}; + +struct prestera_msg_port_info_resp { + struct prestera_msg_ret ret; + __le32 hw_id; + __le32 dev_id; + __le16 fp_id; + u8 pad[2]; +}; + +struct prestera_msg_vlan_req { + struct prestera_msg_cmd cmd; + __le32 port; + __le32 dev; + __le16 vid; + u8 is_member; + u8 is_tagged; +}; + +struct prestera_msg_fdb_req { + struct prestera_msg_cmd cmd; + __le32 flush_mode; + union { + struct { + __le32 port; + __le32 dev; + }; + __le16 lag_id; + } dest; + __le16 vid; + u8 dest_type; + u8 dynamic; + u8 mac[ETH_ALEN]; + u8 __pad[2]; +}; + +struct prestera_msg_bridge_req { + struct prestera_msg_cmd cmd; + __le32 port; + __le32 dev; + __le16 bridge; + u8 pad[2]; +}; + +struct prestera_msg_bridge_resp { + struct prestera_msg_ret ret; + __le16 bridge; + u8 pad[2]; +}; + +struct prestera_msg_vtcam_create_req { + struct prestera_msg_cmd cmd; + __le32 keymask[__PRESTERA_ACL_RULE_MATCH_TYPE_MAX]; + u8 direction; + u8 lookup; + u8 pad[2]; +}; + +struct prestera_msg_vtcam_destroy_req { + struct prestera_msg_cmd cmd; + __le32 vtcam_id; +}; + +struct prestera_msg_vtcam_rule_add_req { + struct prestera_msg_cmd cmd; + __le32 key[__PRESTERA_ACL_RULE_MATCH_TYPE_MAX]; + __le32 keymask[__PRESTERA_ACL_RULE_MATCH_TYPE_MAX]; + __le32 vtcam_id; + __le32 prio; + __le32 n_act; +}; + +struct prestera_msg_vtcam_rule_del_req { + struct prestera_msg_cmd cmd; + __le32 vtcam_id; + __le32 id; +}; + +struct prestera_msg_vtcam_bind_req { + struct prestera_msg_cmd cmd; + union { + struct { + __le32 hw_id; + __le32 dev_id; + } port; + __le32 index; + }; + __le32 vtcam_id; + __le16 pcl_id; + __le16 type; +}; + +struct prestera_msg_vtcam_resp { + struct prestera_msg_ret ret; + __le32 vtcam_id; + __le32 rule_id; +}; + +struct prestera_msg_acl_action { + __le32 id; + __le32 __reserved; + union { + struct { + __le32 index; + } jump; + struct { + __le32 id; + } police; + struct { + __le32 id; + } count; + __le32 reserved[6]; + }; +}; + +struct prestera_msg_counter_req { + struct prestera_msg_cmd cmd; + __le32 client; + __le32 block_id; + __le32 num_counters; +}; + +struct prestera_msg_counter_stats { + __le64 packets; + __le64 bytes; +}; + +struct prestera_msg_counter_resp { + struct prestera_msg_ret ret; + __le32 block_id; + __le32 offset; + __le32 num_counters; + __le32 done; + struct prestera_msg_counter_stats stats[]; +}; + +struct prestera_msg_span_req { + struct prestera_msg_cmd cmd; + __le32 port; + __le32 dev; + u8 id; + u8 pad[3]; +}; + +struct prestera_msg_span_resp { + struct prestera_msg_ret ret; + u8 id; + u8 pad[3]; +}; + +struct prestera_msg_stp_req { + struct prestera_msg_cmd cmd; + __le32 port; + __le32 dev; + __le16 vid; + u8 state; + u8 __pad; +}; + +struct prestera_msg_rxtx_req { + struct prestera_msg_cmd cmd; + u8 use_sdma; + u8 pad[3]; +}; + +struct prestera_msg_rxtx_resp { + struct prestera_msg_ret ret; + __le32 map_addr; +}; + +struct prestera_msg_iface { + union { + struct { + __le32 dev; + __le32 port; + }; + __le16 lag_id; + }; + __le16 vr_id; + __le16 vid; + u8 type; + u8 __pad[3]; +}; + +struct prestera_msg_ip_addr { + union { + __be32 ipv4; + __be32 ipv6[4]; + } u; + u8 v; /* e.g. PRESTERA_IPV4 */ + u8 __pad[3]; +}; + +struct prestera_msg_nh { + struct prestera_msg_iface oif; + __le32 hw_id; + u8 mac[ETH_ALEN]; + u8 is_active; + u8 pad; +}; + +struct prestera_msg_rif_req { + struct prestera_msg_cmd cmd; + struct prestera_msg_iface iif; + __le32 mtu; + __le16 rif_id; + __le16 __reserved; + u8 mac[ETH_ALEN]; + u8 __pad[2]; +}; + +struct prestera_msg_rif_resp { + struct prestera_msg_ret ret; + __le16 rif_id; + u8 __pad[2]; +}; + +struct prestera_msg_lpm_req { + struct prestera_msg_cmd cmd; + struct prestera_msg_ip_addr dst; + __le32 grp_id; + __le32 dst_len; + __le16 vr_id; + u8 __pad[2]; +}; + +struct prestera_msg_nh_req { + struct prestera_msg_cmd cmd; + struct prestera_msg_nh nh[PRESTERA_NHGR_SIZE_MAX]; + __le32 size; + __le32 grp_id; +}; + +struct prestera_msg_nh_chunk_req { + struct prestera_msg_cmd cmd; + __le32 offset; +}; + +struct prestera_msg_nh_chunk_resp { + struct prestera_msg_ret ret; + u8 hw_state[PRESTERA_MSG_CHUNK_SIZE]; +}; + +struct prestera_msg_nh_grp_req { + struct prestera_msg_cmd cmd; + __le32 grp_id; + __le32 size; +}; + +struct prestera_msg_nh_grp_resp { + struct prestera_msg_ret ret; + __le32 grp_id; +}; + +struct prestera_msg_vr_req { + struct prestera_msg_cmd cmd; + __le16 vr_id; + u8 __pad[2]; +}; + +struct prestera_msg_vr_resp { + struct prestera_msg_ret ret; + __le16 vr_id; + u8 __pad[2]; +}; + +struct prestera_msg_lag_req { + struct prestera_msg_cmd cmd; + __le32 port; + __le32 dev; + __le16 lag_id; + u8 pad[2]; +}; + +struct prestera_msg_cpu_code_counter_req { + struct prestera_msg_cmd cmd; + u8 counter_type; + u8 code; + u8 pad[2]; +}; + +struct mvsw_msg_cpu_code_counter_ret { + struct prestera_msg_ret ret; + __le64 packet_count; +}; + +struct prestera_msg_policer_req { + struct prestera_msg_cmd cmd; + __le32 id; + union { + struct { + __le64 cir; + __le32 cbs; + } __packed sr_tcm; /* make sure always 12 bytes size */ + __le32 reserved[6]; + }; + u8 mode; + u8 type; + u8 pad[2]; +}; + +struct prestera_msg_policer_resp { + struct prestera_msg_ret ret; + __le32 id; +}; + +struct prestera_msg_event { + __le16 type; + __le16 id; +}; + +struct prestera_msg_event_port { + struct prestera_msg_event id; + __le32 port_id; + struct prestera_msg_event_port_param param; +}; + +union prestera_msg_event_fdb_param { + u8 mac[ETH_ALEN]; +}; + +struct prestera_msg_event_fdb { + struct prestera_msg_event id; + __le32 vid; + union { + __le32 port_id; + __le16 lag_id; + } dest; + union prestera_msg_event_fdb_param param; + u8 dest_type; +}; + +struct prestera_msg_flood_domain_create_req { + struct prestera_msg_cmd cmd; +}; + +struct prestera_msg_flood_domain_create_resp { + struct prestera_msg_ret ret; + __le32 flood_domain_idx; +}; + +struct prestera_msg_flood_domain_destroy_req { + struct prestera_msg_cmd cmd; + __le32 flood_domain_idx; +}; + +struct prestera_msg_flood_domain_ports_set_req { + struct prestera_msg_cmd cmd; + __le32 flood_domain_idx; + __le32 ports_num; +}; + +struct prestera_msg_flood_domain_ports_reset_req { + struct prestera_msg_cmd cmd; + __le32 flood_domain_idx; +}; + +struct prestera_msg_flood_domain_port { + union { + struct { + __le32 port_num; + __le32 dev_num; + }; + __le16 lag_id; + }; + __le16 vid; + __le16 port_type; +}; + +struct prestera_msg_mdb_create_req { + struct prestera_msg_cmd cmd; + __le32 flood_domain_idx; + __le16 vid; + u8 mac[ETH_ALEN]; +}; + +struct prestera_msg_mdb_destroy_req { + struct prestera_msg_cmd cmd; + __le32 flood_domain_idx; + __le16 vid; + u8 mac[ETH_ALEN]; +}; + +static void prestera_hw_build_tests(void) +{ + /* check requests */ + BUILD_BUG_ON(sizeof(struct prestera_msg_common_req) != 4); + BUILD_BUG_ON(sizeof(struct prestera_msg_switch_attr_req) != 16); + BUILD_BUG_ON(sizeof(struct prestera_msg_port_attr_req) != 144); + BUILD_BUG_ON(sizeof(struct prestera_msg_port_info_req) != 8); + BUILD_BUG_ON(sizeof(struct prestera_msg_vlan_req) != 16); + BUILD_BUG_ON(sizeof(struct prestera_msg_fdb_req) != 28); + BUILD_BUG_ON(sizeof(struct prestera_msg_bridge_req) != 16); + BUILD_BUG_ON(sizeof(struct prestera_msg_span_req) != 16); + BUILD_BUG_ON(sizeof(struct prestera_msg_stp_req) != 16); + BUILD_BUG_ON(sizeof(struct prestera_msg_rxtx_req) != 8); + BUILD_BUG_ON(sizeof(struct prestera_msg_lag_req) != 16); + BUILD_BUG_ON(sizeof(struct prestera_msg_cpu_code_counter_req) != 8); + BUILD_BUG_ON(sizeof(struct prestera_msg_vtcam_create_req) != 84); + BUILD_BUG_ON(sizeof(struct prestera_msg_vtcam_destroy_req) != 8); + BUILD_BUG_ON(sizeof(struct prestera_msg_vtcam_rule_add_req) != 168); + BUILD_BUG_ON(sizeof(struct prestera_msg_vtcam_rule_del_req) != 12); + BUILD_BUG_ON(sizeof(struct prestera_msg_vtcam_bind_req) != 20); + BUILD_BUG_ON(sizeof(struct prestera_msg_acl_action) != 32); + BUILD_BUG_ON(sizeof(struct prestera_msg_counter_req) != 16); + BUILD_BUG_ON(sizeof(struct prestera_msg_counter_stats) != 16); + BUILD_BUG_ON(sizeof(struct prestera_msg_rif_req) != 36); + BUILD_BUG_ON(sizeof(struct prestera_msg_vr_req) != 8); + BUILD_BUG_ON(sizeof(struct prestera_msg_lpm_req) != 36); + BUILD_BUG_ON(sizeof(struct prestera_msg_policer_req) != 36); + BUILD_BUG_ON(sizeof(struct prestera_msg_flood_domain_create_req) != 4); + BUILD_BUG_ON(sizeof(struct prestera_msg_flood_domain_destroy_req) != 8); + BUILD_BUG_ON(sizeof(struct prestera_msg_flood_domain_ports_set_req) != 12); + BUILD_BUG_ON(sizeof(struct prestera_msg_flood_domain_ports_reset_req) != 8); + BUILD_BUG_ON(sizeof(struct prestera_msg_mdb_create_req) != 16); + BUILD_BUG_ON(sizeof(struct prestera_msg_mdb_destroy_req) != 16); + BUILD_BUG_ON(sizeof(struct prestera_msg_nh_req) != 124); + BUILD_BUG_ON(sizeof(struct prestera_msg_nh_chunk_req) != 8); + BUILD_BUG_ON(sizeof(struct prestera_msg_nh_grp_req) != 12); + + /* structure that are part of req/resp fw messages */ + BUILD_BUG_ON(sizeof(struct prestera_msg_iface) != 16); + BUILD_BUG_ON(sizeof(struct prestera_msg_ip_addr) != 20); + BUILD_BUG_ON(sizeof(struct prestera_msg_flood_domain_port) != 12); + BUILD_BUG_ON(sizeof(struct prestera_msg_nh) != 28); + + /* check responses */ + BUILD_BUG_ON(sizeof(struct prestera_msg_common_resp) != 8); + BUILD_BUG_ON(sizeof(struct prestera_msg_switch_init_resp) != 24); + BUILD_BUG_ON(sizeof(struct prestera_msg_port_attr_resp) != 136); + BUILD_BUG_ON(sizeof(struct prestera_msg_port_stats_resp) != 248); + BUILD_BUG_ON(sizeof(struct prestera_msg_port_info_resp) != 20); + BUILD_BUG_ON(sizeof(struct prestera_msg_bridge_resp) != 12); + BUILD_BUG_ON(sizeof(struct prestera_msg_span_resp) != 12); + BUILD_BUG_ON(sizeof(struct prestera_msg_rxtx_resp) != 12); + BUILD_BUG_ON(sizeof(struct prestera_msg_vtcam_resp) != 16); + BUILD_BUG_ON(sizeof(struct prestera_msg_counter_resp) != 24); + BUILD_BUG_ON(sizeof(struct prestera_msg_rif_resp) != 12); + BUILD_BUG_ON(sizeof(struct prestera_msg_vr_resp) != 12); + BUILD_BUG_ON(sizeof(struct prestera_msg_policer_resp) != 12); + BUILD_BUG_ON(sizeof(struct prestera_msg_flood_domain_create_resp) != 12); + BUILD_BUG_ON(sizeof(struct prestera_msg_nh_chunk_resp) != 1032); + BUILD_BUG_ON(sizeof(struct prestera_msg_nh_grp_resp) != 12); + + /* check events */ + BUILD_BUG_ON(sizeof(struct prestera_msg_event_port) != 20); + BUILD_BUG_ON(sizeof(struct prestera_msg_event_fdb) != 20); +} + +static u8 prestera_hw_mdix_to_eth(u8 mode); +static void prestera_hw_remote_fc_to_eth(u8 fc, bool *pause, bool *asym_pause); + +static int __prestera_cmd_ret(struct prestera_switch *sw, + enum prestera_cmd_type_t type, + struct prestera_msg_cmd *cmd, size_t clen, + struct prestera_msg_ret *ret, size_t rlen, + int waitms) +{ + struct prestera_device *dev = sw->dev; + int err; + + cmd->type = __cpu_to_le32(type); + + err = dev->send_req(dev, 0, cmd, clen, ret, rlen, waitms); + if (err) + return err; + + if (ret->cmd.type != __cpu_to_le32(PRESTERA_CMD_TYPE_ACK)) + return -EBADE; + if (ret->status != __cpu_to_le32(PRESTERA_CMD_ACK_OK)) + return -EINVAL; + + return 0; +} + +static int prestera_cmd_ret(struct prestera_switch *sw, + enum prestera_cmd_type_t type, + struct prestera_msg_cmd *cmd, size_t clen, + struct prestera_msg_ret *ret, size_t rlen) +{ + return __prestera_cmd_ret(sw, type, cmd, clen, ret, rlen, 0); +} + +static int prestera_cmd_ret_wait(struct prestera_switch *sw, + enum prestera_cmd_type_t type, + struct prestera_msg_cmd *cmd, size_t clen, + struct prestera_msg_ret *ret, size_t rlen, + int waitms) +{ + return __prestera_cmd_ret(sw, type, cmd, clen, ret, rlen, waitms); +} + +static int prestera_cmd(struct prestera_switch *sw, + enum prestera_cmd_type_t type, + struct prestera_msg_cmd *cmd, size_t clen) +{ + struct prestera_msg_common_resp resp; + + return prestera_cmd_ret(sw, type, cmd, clen, &resp.ret, sizeof(resp)); +} + +static int prestera_fw_parse_port_evt(void *msg, struct prestera_event *evt) +{ + struct prestera_msg_event_port *hw_evt; + + hw_evt = (struct prestera_msg_event_port *)msg; + + evt->port_evt.port_id = __le32_to_cpu(hw_evt->port_id); + + if (evt->id == PRESTERA_PORT_EVENT_MAC_STATE_CHANGED) { + evt->port_evt.data.mac.oper = hw_evt->param.mac.oper; + evt->port_evt.data.mac.mode = + __le32_to_cpu(hw_evt->param.mac.mode); + evt->port_evt.data.mac.speed = + __le32_to_cpu(hw_evt->param.mac.speed); + evt->port_evt.data.mac.duplex = hw_evt->param.mac.duplex; + evt->port_evt.data.mac.fc = hw_evt->param.mac.fc; + evt->port_evt.data.mac.fec = hw_evt->param.mac.fec; + } else { + return -EINVAL; + } + + return 0; +} + +static int prestera_fw_parse_fdb_evt(void *msg, struct prestera_event *evt) +{ + struct prestera_msg_event_fdb *hw_evt = msg; + + switch (hw_evt->dest_type) { + case PRESTERA_HW_FDB_ENTRY_TYPE_REG_PORT: + evt->fdb_evt.type = PRESTERA_FDB_ENTRY_TYPE_REG_PORT; + evt->fdb_evt.dest.port_id = __le32_to_cpu(hw_evt->dest.port_id); + break; + case PRESTERA_HW_FDB_ENTRY_TYPE_LAG: + evt->fdb_evt.type = PRESTERA_FDB_ENTRY_TYPE_LAG; + evt->fdb_evt.dest.lag_id = __le16_to_cpu(hw_evt->dest.lag_id); + break; + default: + return -EINVAL; + } + + evt->fdb_evt.vid = __le32_to_cpu(hw_evt->vid); + + ether_addr_copy(evt->fdb_evt.data.mac, hw_evt->param.mac); + + return 0; +} + +static struct prestera_fw_evt_parser { + int (*func)(void *msg, struct prestera_event *evt); +} fw_event_parsers[PRESTERA_EVENT_TYPE_MAX] = { + [PRESTERA_EVENT_TYPE_PORT] = { .func = prestera_fw_parse_port_evt }, + [PRESTERA_EVENT_TYPE_FDB] = { .func = prestera_fw_parse_fdb_evt }, +}; + +static struct prestera_fw_event_handler * +__find_event_handler(const struct prestera_switch *sw, + enum prestera_event_type type) +{ + struct prestera_fw_event_handler *eh; + + list_for_each_entry_rcu(eh, &sw->event_handlers, list) { + if (eh->type == type) + return eh; + } + + return NULL; +} + +static int prestera_find_event_handler(const struct prestera_switch *sw, + enum prestera_event_type type, + struct prestera_fw_event_handler *eh) +{ + struct prestera_fw_event_handler *tmp; + int err = 0; + + rcu_read_lock(); + tmp = __find_event_handler(sw, type); + if (tmp) + *eh = *tmp; + else + err = -ENOENT; + rcu_read_unlock(); + + return err; +} + +static int prestera_evt_recv(struct prestera_device *dev, void *buf, size_t size) +{ + struct prestera_switch *sw = dev->priv; + struct prestera_msg_event *msg = buf; + struct prestera_fw_event_handler eh; + struct prestera_event evt; + u16 msg_type; + int err; + + msg_type = __le16_to_cpu(msg->type); + if (msg_type >= PRESTERA_EVENT_TYPE_MAX) + return -EINVAL; + if (!fw_event_parsers[msg_type].func) + return -ENOENT; + + err = prestera_find_event_handler(sw, msg_type, &eh); + if (err) + return err; + + evt.id = __le16_to_cpu(msg->id); + + err = fw_event_parsers[msg_type].func(buf, &evt); + if (err) + return err; + + eh.func(sw, &evt, eh.arg); + + return 0; +} + +static void prestera_pkt_recv(struct prestera_device *dev) +{ + struct prestera_switch *sw = dev->priv; + struct prestera_fw_event_handler eh; + struct prestera_event ev; + int err; + + ev.id = PRESTERA_RXTX_EVENT_RCV_PKT; + + err = prestera_find_event_handler(sw, PRESTERA_EVENT_TYPE_RXTX, &eh); + if (err) + return; + + eh.func(sw, &ev, eh.arg); +} + +static u8 prestera_hw_mdix_to_eth(u8 mode) +{ + switch (mode) { + case PRESTERA_PORT_TP_MDI: + return ETH_TP_MDI; + case PRESTERA_PORT_TP_MDIX: + return ETH_TP_MDI_X; + case PRESTERA_PORT_TP_AUTO: + return ETH_TP_MDI_AUTO; + default: + return ETH_TP_MDI_INVALID; + } +} + +static u8 prestera_hw_mdix_from_eth(u8 mode) +{ + switch (mode) { + case ETH_TP_MDI: + return PRESTERA_PORT_TP_MDI; + case ETH_TP_MDI_X: + return PRESTERA_PORT_TP_MDIX; + case ETH_TP_MDI_AUTO: + return PRESTERA_PORT_TP_AUTO; + default: + return PRESTERA_PORT_TP_NA; + } +} + +int prestera_hw_port_info_get(const struct prestera_port *port, + u32 *dev_id, u32 *hw_id, u16 *fp_id) +{ + struct prestera_msg_port_info_req req = { + .port = __cpu_to_le32(port->id), + }; + struct prestera_msg_port_info_resp resp; + int err; + + err = prestera_cmd_ret(port->sw, PRESTERA_CMD_TYPE_PORT_INFO_GET, + &req.cmd, sizeof(req), &resp.ret, sizeof(resp)); + if (err) + return err; + + *dev_id = __le32_to_cpu(resp.dev_id); + *hw_id = __le32_to_cpu(resp.hw_id); + *fp_id = __le16_to_cpu(resp.fp_id); + + return 0; +} + +int prestera_hw_switch_mac_set(struct prestera_switch *sw, const char *mac) +{ + struct prestera_msg_switch_attr_req req = { + .attr = __cpu_to_le32(PRESTERA_CMD_SWITCH_ATTR_MAC), + }; + + ether_addr_copy(req.param.mac, mac); + + return prestera_cmd(sw, PRESTERA_CMD_TYPE_SWITCH_ATTR_SET, + &req.cmd, sizeof(req)); +} + +int prestera_hw_switch_init(struct prestera_switch *sw) +{ + struct prestera_msg_switch_init_resp resp; + struct prestera_msg_common_req req; + int err; + + INIT_LIST_HEAD(&sw->event_handlers); + + prestera_hw_build_tests(); + + err = prestera_cmd_ret_wait(sw, PRESTERA_CMD_TYPE_SWITCH_INIT, + &req.cmd, sizeof(req), + &resp.ret, sizeof(resp), + PRESTERA_SWITCH_INIT_TIMEOUT_MS); + if (err) + return err; + + sw->dev->recv_msg = prestera_evt_recv; + sw->dev->recv_pkt = prestera_pkt_recv; + sw->port_count = __le32_to_cpu(resp.port_count); + sw->mtu_min = PRESTERA_MIN_MTU; + sw->mtu_max = __le32_to_cpu(resp.mtu_max); + sw->id = resp.switch_id; + sw->lag_member_max = resp.lag_member_max; + sw->lag_max = resp.lag_max; + sw->size_tbl_router_nexthop = + __le32_to_cpu(resp.size_tbl_router_nexthop); + + return 0; +} + +void prestera_hw_switch_fini(struct prestera_switch *sw) +{ + WARN_ON(!list_empty(&sw->event_handlers)); +} + +int prestera_hw_switch_ageing_set(struct prestera_switch *sw, u32 ageing_ms) +{ + struct prestera_msg_switch_attr_req req = { + .attr = __cpu_to_le32(PRESTERA_CMD_SWITCH_ATTR_AGEING), + .param = { + .ageing_timeout_ms = __cpu_to_le32(ageing_ms), + }, + }; + + return prestera_cmd(sw, PRESTERA_CMD_TYPE_SWITCH_ATTR_SET, + &req.cmd, sizeof(req)); +} + +int prestera_hw_port_mac_mode_get(const struct prestera_port *port, + u32 *mode, u32 *speed, u8 *duplex, u8 *fec) +{ + struct prestera_msg_port_attr_resp resp; + struct prestera_msg_port_attr_req req = { + .attr = __cpu_to_le32(PRESTERA_CMD_PORT_ATTR_MAC_MODE), + .port = __cpu_to_le32(port->hw_id), + .dev = __cpu_to_le32(port->dev_id) + }; + int err; + + err = prestera_cmd_ret(port->sw, PRESTERA_CMD_TYPE_PORT_ATTR_GET, + &req.cmd, sizeof(req), &resp.ret, sizeof(resp)); + if (err) + return err; + + if (mode) + *mode = __le32_to_cpu(resp.param.link_evt.mac.mode); + + if (speed) + *speed = __le32_to_cpu(resp.param.link_evt.mac.speed); + + if (duplex) + *duplex = resp.param.link_evt.mac.duplex; + + if (fec) + *fec = resp.param.link_evt.mac.fec; + + return err; +} + +int prestera_hw_port_mac_mode_set(const struct prestera_port *port, + bool admin, u32 mode, u8 inband, + u32 speed, u8 duplex, u8 fec) +{ + struct prestera_msg_port_attr_req req = { + .attr = __cpu_to_le32(PRESTERA_CMD_PORT_ATTR_MAC_MODE), + .port = __cpu_to_le32(port->hw_id), + .dev = __cpu_to_le32(port->dev_id), + .param = { + .link = { + .mac = { + .admin = admin, + .reg_mode.mode = __cpu_to_le32(mode), + .reg_mode.inband = inband, + .reg_mode.speed = __cpu_to_le32(speed), + .reg_mode.duplex = duplex, + .reg_mode.fec = fec + } + } + } + }; + + return prestera_cmd(port->sw, PRESTERA_CMD_TYPE_PORT_ATTR_SET, + &req.cmd, sizeof(req)); +} + +int prestera_hw_port_phy_mode_get(const struct prestera_port *port, + u8 *mdix, u64 *lmode_bmap, + bool *fc_pause, bool *fc_asym) +{ + struct prestera_msg_port_attr_resp resp; + struct prestera_msg_port_attr_req req = { + .attr = __cpu_to_le32(PRESTERA_CMD_PORT_ATTR_PHY_MODE), + .port = __cpu_to_le32(port->hw_id), + .dev = __cpu_to_le32(port->dev_id) + }; + int err; + + err = prestera_cmd_ret(port->sw, PRESTERA_CMD_TYPE_PORT_ATTR_GET, + &req.cmd, sizeof(req), &resp.ret, sizeof(resp)); + if (err) + return err; + + if (mdix) + *mdix = prestera_hw_mdix_to_eth(resp.param.link_evt.phy.mdix); + + if (lmode_bmap) + *lmode_bmap = __le64_to_cpu(resp.param.link_evt.phy.lmode_bmap); + + if (fc_pause && fc_asym) + prestera_hw_remote_fc_to_eth(resp.param.link_evt.phy.fc, + fc_pause, fc_asym); + + return err; +} + +int prestera_hw_port_phy_mode_set(const struct prestera_port *port, + bool admin, bool adv, u32 mode, u64 modes, + u8 mdix) +{ + struct prestera_msg_port_attr_req req = { + .attr = __cpu_to_le32(PRESTERA_CMD_PORT_ATTR_PHY_MODE), + .port = __cpu_to_le32(port->hw_id), + .dev = __cpu_to_le32(port->dev_id), + .param = { + .link = { + .phy = { + .admin = admin, + .adv_enable = adv ? 1 : 0, + .mode = __cpu_to_le32(mode), + .modes = __cpu_to_le64(modes), + } + } + } + }; + + req.param.link.phy.mdix = prestera_hw_mdix_from_eth(mdix); + + return prestera_cmd(port->sw, PRESTERA_CMD_TYPE_PORT_ATTR_SET, + &req.cmd, sizeof(req)); +} + +int prestera_hw_port_mtu_set(const struct prestera_port *port, u32 mtu) +{ + struct prestera_msg_port_attr_req req = { + .attr = __cpu_to_le32(PRESTERA_CMD_PORT_ATTR_MTU), + .port = __cpu_to_le32(port->hw_id), + .dev = __cpu_to_le32(port->dev_id), + .param = { + .mtu = __cpu_to_le32(mtu), + } + }; + + return prestera_cmd(port->sw, PRESTERA_CMD_TYPE_PORT_ATTR_SET, + &req.cmd, sizeof(req)); +} + +int prestera_hw_port_mac_set(const struct prestera_port *port, const char *mac) +{ + struct prestera_msg_port_attr_req req = { + .attr = __cpu_to_le32(PRESTERA_CMD_PORT_ATTR_MAC), + .port = __cpu_to_le32(port->hw_id), + .dev = __cpu_to_le32(port->dev_id), + }; + + ether_addr_copy(req.param.mac, mac); + + return prestera_cmd(port->sw, PRESTERA_CMD_TYPE_PORT_ATTR_SET, + &req.cmd, sizeof(req)); +} + +int prestera_hw_port_accept_frm_type(struct prestera_port *port, + enum prestera_accept_frm_type type) +{ + struct prestera_msg_port_attr_req req = { + .attr = __cpu_to_le32(PRESTERA_CMD_PORT_ATTR_ACCEPT_FRAME_TYPE), + .port = __cpu_to_le32(port->hw_id), + .dev = __cpu_to_le32(port->dev_id), + .param = { + .accept_frm_type = type, + } + }; + + return prestera_cmd(port->sw, PRESTERA_CMD_TYPE_PORT_ATTR_SET, + &req.cmd, sizeof(req)); +} + +int prestera_hw_port_cap_get(const struct prestera_port *port, + struct prestera_port_caps *caps) +{ + struct prestera_msg_port_attr_req req = { + .attr = __cpu_to_le32(PRESTERA_CMD_PORT_ATTR_CAPABILITY), + .port = __cpu_to_le32(port->hw_id), + .dev = __cpu_to_le32(port->dev_id), + }; + struct prestera_msg_port_attr_resp resp; + int err; + + err = prestera_cmd_ret(port->sw, PRESTERA_CMD_TYPE_PORT_ATTR_GET, + &req.cmd, sizeof(req), &resp.ret, sizeof(resp)); + if (err) + return err; + + caps->supp_link_modes = __le64_to_cpu(resp.param.cap.link_mode); + caps->transceiver = resp.param.cap.transceiver; + caps->supp_fec = resp.param.cap.fec; + caps->type = resp.param.cap.type; + + return err; +} + +static void prestera_hw_remote_fc_to_eth(u8 fc, bool *pause, bool *asym_pause) +{ + switch (fc) { + case PRESTERA_FC_SYMMETRIC: + *pause = true; + *asym_pause = false; + break; + case PRESTERA_FC_ASYMMETRIC: + *pause = false; + *asym_pause = true; + break; + case PRESTERA_FC_SYMM_ASYMM: + *pause = true; + *asym_pause = true; + break; + default: + *pause = false; + *asym_pause = false; + } +} + +int prestera_hw_vtcam_create(struct prestera_switch *sw, + u8 lookup, const u32 *keymask, u32 *vtcam_id, + enum prestera_hw_vtcam_direction_t dir) +{ + int err; + struct prestera_msg_vtcam_resp resp; + struct prestera_msg_vtcam_create_req req = { + .lookup = lookup, + .direction = dir, + }; + + if (keymask) + memcpy(req.keymask, keymask, sizeof(req.keymask)); + else + memset(req.keymask, 0, sizeof(req.keymask)); + + err = prestera_cmd_ret(sw, PRESTERA_CMD_TYPE_VTCAM_CREATE, + &req.cmd, sizeof(req), &resp.ret, sizeof(resp)); + if (err) + return err; + + *vtcam_id = __le32_to_cpu(resp.vtcam_id); + return 0; +} + +int prestera_hw_vtcam_destroy(struct prestera_switch *sw, u32 vtcam_id) +{ + struct prestera_msg_vtcam_destroy_req req = { + .vtcam_id = __cpu_to_le32(vtcam_id), + }; + + return prestera_cmd(sw, PRESTERA_CMD_TYPE_VTCAM_DESTROY, + &req.cmd, sizeof(req)); +} + +static int +prestera_acl_rule_add_put_action(struct prestera_msg_acl_action *action, + struct prestera_acl_hw_action_info *info) +{ + action->id = __cpu_to_le32(info->id); + + switch (info->id) { + case PRESTERA_ACL_RULE_ACTION_ACCEPT: + case PRESTERA_ACL_RULE_ACTION_DROP: + case PRESTERA_ACL_RULE_ACTION_TRAP: + /* just rule action id, no specific data */ + break; + case PRESTERA_ACL_RULE_ACTION_JUMP: + action->jump.index = __cpu_to_le32(info->jump.index); + break; + case PRESTERA_ACL_RULE_ACTION_POLICE: + action->police.id = __cpu_to_le32(info->police.id); + break; + case PRESTERA_ACL_RULE_ACTION_COUNT: + action->count.id = __cpu_to_le32(info->count.id); + break; + default: + return -EINVAL; + } + + return 0; +} + +int prestera_hw_vtcam_rule_add(struct prestera_switch *sw, + u32 vtcam_id, u32 prio, void *key, void *keymask, + struct prestera_acl_hw_action_info *act, + u8 n_act, u32 *rule_id) +{ + struct prestera_msg_acl_action *actions_msg; + struct prestera_msg_vtcam_rule_add_req *req; + struct prestera_msg_vtcam_resp resp; + void *buff; + u32 size; + int err; + u8 i; + + size = sizeof(*req) + sizeof(*actions_msg) * n_act; + + buff = kzalloc(size, GFP_KERNEL); + if (!buff) + return -ENOMEM; + + req = buff; + req->n_act = __cpu_to_le32(n_act); + actions_msg = buff + sizeof(*req); + + /* put acl matches into the message */ + memcpy(req->key, key, sizeof(req->key)); + memcpy(req->keymask, keymask, sizeof(req->keymask)); + + /* put acl actions into the message */ + for (i = 0; i < n_act; i++) { + err = prestera_acl_rule_add_put_action(&actions_msg[i], + &act[i]); + if (err) + goto free_buff; + } + + req->vtcam_id = __cpu_to_le32(vtcam_id); + req->prio = __cpu_to_le32(prio); + + err = prestera_cmd_ret(sw, PRESTERA_CMD_TYPE_VTCAM_RULE_ADD, + &req->cmd, size, &resp.ret, sizeof(resp)); + if (err) + goto free_buff; + + *rule_id = __le32_to_cpu(resp.rule_id); +free_buff: + kfree(buff); + return err; +} + +int prestera_hw_vtcam_rule_del(struct prestera_switch *sw, + u32 vtcam_id, u32 rule_id) +{ + struct prestera_msg_vtcam_rule_del_req req = { + .vtcam_id = __cpu_to_le32(vtcam_id), + .id = __cpu_to_le32(rule_id) + }; + + return prestera_cmd(sw, PRESTERA_CMD_TYPE_VTCAM_RULE_DELETE, + &req.cmd, sizeof(req)); +} + +int prestera_hw_vtcam_iface_bind(struct prestera_switch *sw, + struct prestera_acl_iface *iface, + u32 vtcam_id, u16 pcl_id) +{ + struct prestera_msg_vtcam_bind_req req = { + .vtcam_id = __cpu_to_le32(vtcam_id), + .type = __cpu_to_le16(iface->type), + .pcl_id = __cpu_to_le16(pcl_id) + }; + + if (iface->type == PRESTERA_ACL_IFACE_TYPE_PORT) { + req.port.dev_id = __cpu_to_le32(iface->port->dev_id); + req.port.hw_id = __cpu_to_le32(iface->port->hw_id); + } else { + req.index = __cpu_to_le32(iface->index); + } + + return prestera_cmd(sw, PRESTERA_CMD_TYPE_VTCAM_IFACE_BIND, + &req.cmd, sizeof(req)); +} + +int prestera_hw_vtcam_iface_unbind(struct prestera_switch *sw, + struct prestera_acl_iface *iface, + u32 vtcam_id) +{ + struct prestera_msg_vtcam_bind_req req = { + .vtcam_id = __cpu_to_le32(vtcam_id), + .type = __cpu_to_le16(iface->type) + }; + + if (iface->type == PRESTERA_ACL_IFACE_TYPE_PORT) { + req.port.dev_id = __cpu_to_le32(iface->port->dev_id); + req.port.hw_id = __cpu_to_le32(iface->port->hw_id); + } else { + req.index = __cpu_to_le32(iface->index); + } + + return prestera_cmd(sw, PRESTERA_CMD_TYPE_VTCAM_IFACE_UNBIND, + &req.cmd, sizeof(req)); +} + +int prestera_hw_span_get(const struct prestera_port *port, u8 *span_id) +{ + struct prestera_msg_span_resp resp; + struct prestera_msg_span_req req = { + .port = __cpu_to_le32(port->hw_id), + .dev = __cpu_to_le32(port->dev_id), + }; + int err; + + err = prestera_cmd_ret(port->sw, PRESTERA_CMD_TYPE_SPAN_GET, + &req.cmd, sizeof(req), &resp.ret, sizeof(resp)); + if (err) + return err; + + *span_id = resp.id; + + return 0; +} + +int prestera_hw_span_bind(const struct prestera_port *port, u8 span_id, + bool ingress) +{ + struct prestera_msg_span_req req = { + .port = __cpu_to_le32(port->hw_id), + .dev = __cpu_to_le32(port->dev_id), + .id = span_id, + }; + enum prestera_cmd_type_t cmd_type; + + if (ingress) + cmd_type = PRESTERA_CMD_TYPE_SPAN_INGRESS_BIND; + else + cmd_type = PRESTERA_CMD_TYPE_SPAN_EGRESS_BIND; + + return prestera_cmd(port->sw, cmd_type, &req.cmd, sizeof(req)); + +} + +int prestera_hw_span_unbind(const struct prestera_port *port, bool ingress) +{ + struct prestera_msg_span_req req = { + .port = __cpu_to_le32(port->hw_id), + .dev = __cpu_to_le32(port->dev_id), + }; + enum prestera_cmd_type_t cmd_type; + + if (ingress) + cmd_type = PRESTERA_CMD_TYPE_SPAN_INGRESS_UNBIND; + else + cmd_type = PRESTERA_CMD_TYPE_SPAN_EGRESS_UNBIND; + + return prestera_cmd(port->sw, cmd_type, &req.cmd, sizeof(req)); +} + +int prestera_hw_span_release(struct prestera_switch *sw, u8 span_id) +{ + struct prestera_msg_span_req req = { + .id = span_id + }; + + return prestera_cmd(sw, PRESTERA_CMD_TYPE_SPAN_RELEASE, + &req.cmd, sizeof(req)); +} + +int prestera_hw_port_type_get(const struct prestera_port *port, u8 *type) +{ + struct prestera_msg_port_attr_req req = { + .attr = __cpu_to_le32(PRESTERA_CMD_PORT_ATTR_TYPE), + .port = __cpu_to_le32(port->hw_id), + .dev = __cpu_to_le32(port->dev_id), + }; + struct prestera_msg_port_attr_resp resp; + int err; + + err = prestera_cmd_ret(port->sw, PRESTERA_CMD_TYPE_PORT_ATTR_GET, + &req.cmd, sizeof(req), &resp.ret, sizeof(resp)); + if (err) + return err; + + *type = resp.param.type; + + return 0; +} + +int prestera_hw_port_speed_get(const struct prestera_port *port, u32 *speed) +{ + struct prestera_msg_port_attr_req req = { + .attr = __cpu_to_le32(PRESTERA_CMD_PORT_ATTR_SPEED), + .port = __cpu_to_le32(port->hw_id), + .dev = __cpu_to_le32(port->dev_id), + }; + struct prestera_msg_port_attr_resp resp; + int err; + + err = prestera_cmd_ret(port->sw, PRESTERA_CMD_TYPE_PORT_ATTR_GET, + &req.cmd, sizeof(req), &resp.ret, sizeof(resp)); + if (err) + return err; + + *speed = __le32_to_cpu(resp.param.speed); + + return 0; +} + +int prestera_hw_port_autoneg_restart(struct prestera_port *port) +{ + struct prestera_msg_port_attr_req req = { + .attr = + __cpu_to_le32(PRESTERA_CMD_PORT_ATTR_PHY_AUTONEG_RESTART), + .port = __cpu_to_le32(port->hw_id), + .dev = __cpu_to_le32(port->dev_id), + }; + + return prestera_cmd(port->sw, PRESTERA_CMD_TYPE_PORT_ATTR_SET, + &req.cmd, sizeof(req)); +} + +int prestera_hw_port_stats_get(const struct prestera_port *port, + struct prestera_port_stats *st) +{ + struct prestera_msg_port_attr_req req = { + .attr = __cpu_to_le32(PRESTERA_CMD_PORT_ATTR_STATS), + .port = __cpu_to_le32(port->hw_id), + .dev = __cpu_to_le32(port->dev_id), + }; + struct prestera_msg_port_stats_resp resp; + __le64 *hw = resp.stats; + int err; + + err = prestera_cmd_ret(port->sw, PRESTERA_CMD_TYPE_PORT_ATTR_GET, + &req.cmd, sizeof(req), &resp.ret, sizeof(resp)); + if (err) + return err; + + st->good_octets_received = + __le64_to_cpu(hw[PRESTERA_PORT_GOOD_OCTETS_RCV_CNT]); + st->bad_octets_received = + __le64_to_cpu(hw[PRESTERA_PORT_BAD_OCTETS_RCV_CNT]); + st->mac_trans_error = + __le64_to_cpu(hw[PRESTERA_PORT_MAC_TRANSMIT_ERR_CNT]); + st->broadcast_frames_received = + __le64_to_cpu(hw[PRESTERA_PORT_BRDC_PKTS_RCV_CNT]); + st->multicast_frames_received = + __le64_to_cpu(hw[PRESTERA_PORT_MC_PKTS_RCV_CNT]); + st->frames_64_octets = __le64_to_cpu(hw[PRESTERA_PORT_PKTS_64L_CNT]); + st->frames_65_to_127_octets = + __le64_to_cpu(hw[PRESTERA_PORT_PKTS_65TO127L_CNT]); + st->frames_128_to_255_octets = + __le64_to_cpu(hw[PRESTERA_PORT_PKTS_128TO255L_CNT]); + st->frames_256_to_511_octets = + __le64_to_cpu(hw[PRESTERA_PORT_PKTS_256TO511L_CNT]); + st->frames_512_to_1023_octets = + __le64_to_cpu(hw[PRESTERA_PORT_PKTS_512TO1023L_CNT]); + st->frames_1024_to_max_octets = + __le64_to_cpu(hw[PRESTERA_PORT_PKTS_1024TOMAXL_CNT]); + st->excessive_collision = + __le64_to_cpu(hw[PRESTERA_PORT_EXCESSIVE_COLLISIONS_CNT]); + st->multicast_frames_sent = + __le64_to_cpu(hw[PRESTERA_PORT_MC_PKTS_SENT_CNT]); + st->broadcast_frames_sent = + __le64_to_cpu(hw[PRESTERA_PORT_BRDC_PKTS_SENT_CNT]); + st->fc_sent = __le64_to_cpu(hw[PRESTERA_PORT_FC_SENT_CNT]); + st->fc_received = __le64_to_cpu(hw[PRESTERA_PORT_GOOD_FC_RCV_CNT]); + st->buffer_overrun = __le64_to_cpu(hw[PRESTERA_PORT_DROP_EVENTS_CNT]); + st->undersize = __le64_to_cpu(hw[PRESTERA_PORT_UNDERSIZE_PKTS_CNT]); + st->fragments = __le64_to_cpu(hw[PRESTERA_PORT_FRAGMENTS_PKTS_CNT]); + st->oversize = __le64_to_cpu(hw[PRESTERA_PORT_OVERSIZE_PKTS_CNT]); + st->jabber = __le64_to_cpu(hw[PRESTERA_PORT_JABBER_PKTS_CNT]); + st->rx_error_frame_received = + __le64_to_cpu(hw[PRESTERA_PORT_MAC_RCV_ERROR_CNT]); + st->bad_crc = __le64_to_cpu(hw[PRESTERA_PORT_BAD_CRC_CNT]); + st->collisions = __le64_to_cpu(hw[PRESTERA_PORT_COLLISIONS_CNT]); + st->late_collision = + __le64_to_cpu(hw[PRESTERA_PORT_LATE_COLLISIONS_CNT]); + st->unicast_frames_received = + __le64_to_cpu(hw[PRESTERA_PORT_GOOD_UC_PKTS_RCV_CNT]); + st->unicast_frames_sent = + __le64_to_cpu(hw[PRESTERA_PORT_GOOD_UC_PKTS_SENT_CNT]); + st->sent_multiple = + __le64_to_cpu(hw[PRESTERA_PORT_MULTIPLE_PKTS_SENT_CNT]); + st->sent_deferred = + __le64_to_cpu(hw[PRESTERA_PORT_DEFERRED_PKTS_SENT_CNT]); + st->good_octets_sent = + __le64_to_cpu(hw[PRESTERA_PORT_GOOD_OCTETS_SENT_CNT]); + + return 0; +} + +int prestera_hw_port_learning_set(struct prestera_port *port, bool enable) +{ + struct prestera_msg_port_attr_req req = { + .attr = __cpu_to_le32(PRESTERA_CMD_PORT_ATTR_LEARNING), + .port = __cpu_to_le32(port->hw_id), + .dev = __cpu_to_le32(port->dev_id), + .param = { + .learning = enable, + } + }; + + return prestera_cmd(port->sw, PRESTERA_CMD_TYPE_PORT_ATTR_SET, + &req.cmd, sizeof(req)); +} + +int prestera_hw_port_uc_flood_set(const struct prestera_port *port, bool flood) +{ + struct prestera_msg_port_attr_req req = { + .attr = __cpu_to_le32(PRESTERA_CMD_PORT_ATTR_FLOOD), + .port = __cpu_to_le32(port->hw_id), + .dev = __cpu_to_le32(port->dev_id), + .param = { + .flood_ext = { + .type = PRESTERA_PORT_FLOOD_TYPE_UC, + .enable = flood, + } + } + }; + + return prestera_cmd(port->sw, PRESTERA_CMD_TYPE_PORT_ATTR_SET, + &req.cmd, sizeof(req)); +} + +int prestera_hw_port_mc_flood_set(const struct prestera_port *port, bool flood) +{ + struct prestera_msg_port_attr_req req = { + .attr = __cpu_to_le32(PRESTERA_CMD_PORT_ATTR_FLOOD), + .port = __cpu_to_le32(port->hw_id), + .dev = __cpu_to_le32(port->dev_id), + .param = { + .flood_ext = { + .type = PRESTERA_PORT_FLOOD_TYPE_MC, + .enable = flood, + } + } + }; + + return prestera_cmd(port->sw, PRESTERA_CMD_TYPE_PORT_ATTR_SET, + &req.cmd, sizeof(req)); +} + +int prestera_hw_port_br_locked_set(const struct prestera_port *port, + bool br_locked) +{ + struct prestera_msg_port_attr_req req = { + .attr = __cpu_to_le32(PRESTERA_CMD_PORT_ATTR_LOCKED), + .port = __cpu_to_le32(port->hw_id), + .dev = __cpu_to_le32(port->dev_id), + .param = { + .br_locked = br_locked, + } + }; + + return prestera_cmd(port->sw, PRESTERA_CMD_TYPE_PORT_ATTR_SET, + &req.cmd, sizeof(req)); +} + +int prestera_hw_vlan_create(struct prestera_switch *sw, u16 vid) +{ + struct prestera_msg_vlan_req req = { + .vid = __cpu_to_le16(vid), + }; + + return prestera_cmd(sw, PRESTERA_CMD_TYPE_VLAN_CREATE, + &req.cmd, sizeof(req)); +} + +int prestera_hw_vlan_delete(struct prestera_switch *sw, u16 vid) +{ + struct prestera_msg_vlan_req req = { + .vid = __cpu_to_le16(vid), + }; + + return prestera_cmd(sw, PRESTERA_CMD_TYPE_VLAN_DELETE, + &req.cmd, sizeof(req)); +} + +int prestera_hw_vlan_port_set(struct prestera_port *port, u16 vid, + bool is_member, bool untagged) +{ + struct prestera_msg_vlan_req req = { + .port = __cpu_to_le32(port->hw_id), + .dev = __cpu_to_le32(port->dev_id), + .vid = __cpu_to_le16(vid), + .is_member = is_member, + .is_tagged = !untagged, + }; + + return prestera_cmd(port->sw, PRESTERA_CMD_TYPE_VLAN_PORT_SET, + &req.cmd, sizeof(req)); +} + +int prestera_hw_vlan_port_vid_set(struct prestera_port *port, u16 vid) +{ + struct prestera_msg_vlan_req req = { + .port = __cpu_to_le32(port->hw_id), + .dev = __cpu_to_le32(port->dev_id), + .vid = __cpu_to_le16(vid), + }; + + return prestera_cmd(port->sw, PRESTERA_CMD_TYPE_VLAN_PVID_SET, + &req.cmd, sizeof(req)); +} + +int prestera_hw_vlan_port_stp_set(struct prestera_port *port, u16 vid, u8 state) +{ + struct prestera_msg_stp_req req = { + .port = __cpu_to_le32(port->hw_id), + .dev = __cpu_to_le32(port->dev_id), + .vid = __cpu_to_le16(vid), + .state = state, + }; + + return prestera_cmd(port->sw, PRESTERA_CMD_TYPE_STP_PORT_SET, + &req.cmd, sizeof(req)); +} + +int prestera_hw_fdb_add(struct prestera_port *port, const unsigned char *mac, + u16 vid, bool dynamic) +{ + struct prestera_msg_fdb_req req = { + .dest = { + .dev = __cpu_to_le32(port->dev_id), + .port = __cpu_to_le32(port->hw_id), + }, + .vid = __cpu_to_le16(vid), + .dynamic = dynamic, + }; + + ether_addr_copy(req.mac, mac); + + return prestera_cmd(port->sw, PRESTERA_CMD_TYPE_FDB_ADD, + &req.cmd, sizeof(req)); +} + +int prestera_hw_fdb_del(struct prestera_port *port, const unsigned char *mac, + u16 vid) +{ + struct prestera_msg_fdb_req req = { + .dest = { + .dev = __cpu_to_le32(port->dev_id), + .port = __cpu_to_le32(port->hw_id), + }, + .vid = __cpu_to_le16(vid), + }; + + ether_addr_copy(req.mac, mac); + + return prestera_cmd(port->sw, PRESTERA_CMD_TYPE_FDB_DELETE, + &req.cmd, sizeof(req)); +} + +int prestera_hw_lag_fdb_add(struct prestera_switch *sw, u16 lag_id, + const unsigned char *mac, u16 vid, bool dynamic) +{ + struct prestera_msg_fdb_req req = { + .dest_type = PRESTERA_HW_FDB_ENTRY_TYPE_LAG, + .dest = { + .lag_id = __cpu_to_le16(lag_id), + }, + .vid = __cpu_to_le16(vid), + .dynamic = dynamic, + }; + + ether_addr_copy(req.mac, mac); + + return prestera_cmd(sw, PRESTERA_CMD_TYPE_FDB_ADD, + &req.cmd, sizeof(req)); +} + +int prestera_hw_lag_fdb_del(struct prestera_switch *sw, u16 lag_id, + const unsigned char *mac, u16 vid) +{ + struct prestera_msg_fdb_req req = { + .dest_type = PRESTERA_HW_FDB_ENTRY_TYPE_LAG, + .dest = { + .lag_id = __cpu_to_le16(lag_id), + }, + .vid = __cpu_to_le16(vid), + }; + + ether_addr_copy(req.mac, mac); + + return prestera_cmd(sw, PRESTERA_CMD_TYPE_FDB_DELETE, + &req.cmd, sizeof(req)); +} + +int prestera_hw_fdb_flush_port(struct prestera_port *port, u32 mode) +{ + struct prestera_msg_fdb_req req = { + .dest = { + .dev = __cpu_to_le32(port->dev_id), + .port = __cpu_to_le32(port->hw_id), + }, + .flush_mode = __cpu_to_le32(mode), + }; + + return prestera_cmd(port->sw, PRESTERA_CMD_TYPE_FDB_FLUSH_PORT, + &req.cmd, sizeof(req)); +} + +int prestera_hw_fdb_flush_vlan(struct prestera_switch *sw, u16 vid, u32 mode) +{ + struct prestera_msg_fdb_req req = { + .vid = __cpu_to_le16(vid), + .flush_mode = __cpu_to_le32(mode), + }; + + return prestera_cmd(sw, PRESTERA_CMD_TYPE_FDB_FLUSH_VLAN, + &req.cmd, sizeof(req)); +} + +int prestera_hw_fdb_flush_port_vlan(struct prestera_port *port, u16 vid, + u32 mode) +{ + struct prestera_msg_fdb_req req = { + .dest = { + .dev = __cpu_to_le32(port->dev_id), + .port = __cpu_to_le32(port->hw_id), + }, + .vid = __cpu_to_le16(vid), + .flush_mode = __cpu_to_le32(mode), + }; + + return prestera_cmd(port->sw, PRESTERA_CMD_TYPE_FDB_FLUSH_PORT_VLAN, + &req.cmd, sizeof(req)); +} + +int prestera_hw_fdb_flush_lag(struct prestera_switch *sw, u16 lag_id, + u32 mode) +{ + struct prestera_msg_fdb_req req = { + .dest_type = PRESTERA_HW_FDB_ENTRY_TYPE_LAG, + .dest = { + .lag_id = __cpu_to_le16(lag_id), + }, + .flush_mode = __cpu_to_le32(mode), + }; + + return prestera_cmd(sw, PRESTERA_CMD_TYPE_FDB_FLUSH_PORT, + &req.cmd, sizeof(req)); +} + +int prestera_hw_fdb_flush_lag_vlan(struct prestera_switch *sw, + u16 lag_id, u16 vid, u32 mode) +{ + struct prestera_msg_fdb_req req = { + .dest_type = PRESTERA_HW_FDB_ENTRY_TYPE_LAG, + .dest = { + .lag_id = __cpu_to_le16(lag_id), + }, + .vid = __cpu_to_le16(vid), + .flush_mode = __cpu_to_le32(mode), + }; + + return prestera_cmd(sw, PRESTERA_CMD_TYPE_FDB_FLUSH_PORT_VLAN, + &req.cmd, sizeof(req)); +} + +int prestera_hw_bridge_create(struct prestera_switch *sw, u16 *bridge_id) +{ + struct prestera_msg_bridge_resp resp; + struct prestera_msg_bridge_req req; + int err; + + err = prestera_cmd_ret(sw, PRESTERA_CMD_TYPE_BRIDGE_CREATE, + &req.cmd, sizeof(req), + &resp.ret, sizeof(resp)); + if (err) + return err; + + *bridge_id = __le16_to_cpu(resp.bridge); + + return 0; +} + +int prestera_hw_bridge_delete(struct prestera_switch *sw, u16 bridge_id) +{ + struct prestera_msg_bridge_req req = { + .bridge = __cpu_to_le16(bridge_id), + }; + + return prestera_cmd(sw, PRESTERA_CMD_TYPE_BRIDGE_DELETE, + &req.cmd, sizeof(req)); +} + +int prestera_hw_bridge_port_add(struct prestera_port *port, u16 bridge_id) +{ + struct prestera_msg_bridge_req req = { + .bridge = __cpu_to_le16(bridge_id), + .port = __cpu_to_le32(port->hw_id), + .dev = __cpu_to_le32(port->dev_id), + }; + + return prestera_cmd(port->sw, PRESTERA_CMD_TYPE_BRIDGE_PORT_ADD, + &req.cmd, sizeof(req)); +} + +int prestera_hw_bridge_port_delete(struct prestera_port *port, u16 bridge_id) +{ + struct prestera_msg_bridge_req req = { + .bridge = __cpu_to_le16(bridge_id), + .port = __cpu_to_le32(port->hw_id), + .dev = __cpu_to_le32(port->dev_id), + }; + + return prestera_cmd(port->sw, PRESTERA_CMD_TYPE_BRIDGE_PORT_DELETE, + &req.cmd, sizeof(req)); +} + +static int prestera_iface_to_msg(struct prestera_iface *iface, + struct prestera_msg_iface *msg_if) +{ + switch (iface->type) { + case PRESTERA_IF_PORT_E: + case PRESTERA_IF_VID_E: + msg_if->port = __cpu_to_le32(iface->dev_port.port_num); + msg_if->dev = __cpu_to_le32(iface->dev_port.hw_dev_num); + break; + case PRESTERA_IF_LAG_E: + msg_if->lag_id = __cpu_to_le16(iface->lag_id); + break; + default: + return -EOPNOTSUPP; + } + + msg_if->vr_id = __cpu_to_le16(iface->vr_id); + msg_if->vid = __cpu_to_le16(iface->vlan_id); + msg_if->type = iface->type; + return 0; +} + +int prestera_hw_rif_create(struct prestera_switch *sw, + struct prestera_iface *iif, u8 *mac, u16 *rif_id) +{ + struct prestera_msg_rif_resp resp; + struct prestera_msg_rif_req req; + int err; + + memcpy(req.mac, mac, ETH_ALEN); + + err = prestera_iface_to_msg(iif, &req.iif); + if (err) + return err; + + err = prestera_cmd_ret(sw, PRESTERA_CMD_TYPE_ROUTER_RIF_CREATE, + &req.cmd, sizeof(req), &resp.ret, sizeof(resp)); + if (err) + return err; + + *rif_id = __le16_to_cpu(resp.rif_id); + return err; +} + +int prestera_hw_rif_delete(struct prestera_switch *sw, u16 rif_id, + struct prestera_iface *iif) +{ + struct prestera_msg_rif_req req = { + .rif_id = __cpu_to_le16(rif_id), + }; + int err; + + err = prestera_iface_to_msg(iif, &req.iif); + if (err) + return err; + + return prestera_cmd(sw, PRESTERA_CMD_TYPE_ROUTER_RIF_DELETE, &req.cmd, + sizeof(req)); +} + +int prestera_hw_vr_create(struct prestera_switch *sw, u16 *vr_id) +{ + struct prestera_msg_vr_resp resp; + struct prestera_msg_vr_req req; + int err; + + err = prestera_cmd_ret(sw, PRESTERA_CMD_TYPE_ROUTER_VR_CREATE, + &req.cmd, sizeof(req), &resp.ret, sizeof(resp)); + if (err) + return err; + + *vr_id = __le16_to_cpu(resp.vr_id); + return err; +} + +int prestera_hw_vr_delete(struct prestera_switch *sw, u16 vr_id) +{ + struct prestera_msg_vr_req req = { + .vr_id = __cpu_to_le16(vr_id), + }; + + return prestera_cmd(sw, PRESTERA_CMD_TYPE_ROUTER_VR_DELETE, &req.cmd, + sizeof(req)); +} + +int prestera_hw_lpm_add(struct prestera_switch *sw, u16 vr_id, + __be32 dst, u32 dst_len, u32 grp_id) +{ + struct prestera_msg_lpm_req req = { + .dst_len = __cpu_to_le32(dst_len), + .vr_id = __cpu_to_le16(vr_id), + .grp_id = __cpu_to_le32(grp_id), + .dst.u.ipv4 = dst + }; + + return prestera_cmd(sw, PRESTERA_CMD_TYPE_ROUTER_LPM_ADD, &req.cmd, + sizeof(req)); +} + +int prestera_hw_lpm_del(struct prestera_switch *sw, u16 vr_id, + __be32 dst, u32 dst_len) +{ + struct prestera_msg_lpm_req req = { + .dst_len = __cpu_to_le32(dst_len), + .vr_id = __cpu_to_le16(vr_id), + .dst.u.ipv4 = dst + }; + + return prestera_cmd(sw, PRESTERA_CMD_TYPE_ROUTER_LPM_DELETE, &req.cmd, + sizeof(req)); +} + +int prestera_hw_nh_entries_set(struct prestera_switch *sw, int count, + struct prestera_neigh_info *nhs, u32 grp_id) +{ + struct prestera_msg_nh_req req = { .size = __cpu_to_le32((u32)count), + .grp_id = __cpu_to_le32(grp_id) }; + int i, err; + + for (i = 0; i < count; i++) { + req.nh[i].is_active = nhs[i].connected; + memcpy(&req.nh[i].mac, nhs[i].ha, ETH_ALEN); + err = prestera_iface_to_msg(&nhs[i].iface, &req.nh[i].oif); + if (err) + return err; + } + + return prestera_cmd(sw, PRESTERA_CMD_TYPE_ROUTER_NH_GRP_SET, &req.cmd, + sizeof(req)); +} + +int prestera_hw_nhgrp_blk_get(struct prestera_switch *sw, + u8 *hw_state, u32 buf_size /* Buffer in bytes */) +{ + static struct prestera_msg_nh_chunk_resp resp; + struct prestera_msg_nh_chunk_req req; + u32 buf_offset; + int err; + + memset(&hw_state[0], 0, buf_size); + buf_offset = 0; + while (1) { + if (buf_offset >= buf_size) + break; + + memset(&req, 0, sizeof(req)); + req.offset = __cpu_to_le32(buf_offset * 8); /* 8 bits in u8 */ + err = prestera_cmd_ret(sw, + PRESTERA_CMD_TYPE_ROUTER_NH_GRP_BLK_GET, + &req.cmd, sizeof(req), &resp.ret, + sizeof(resp)); + if (err) + return err; + + memcpy(&hw_state[buf_offset], &resp.hw_state[0], + buf_offset + PRESTERA_MSG_CHUNK_SIZE > buf_size ? + buf_size - buf_offset : PRESTERA_MSG_CHUNK_SIZE); + buf_offset += PRESTERA_MSG_CHUNK_SIZE; + } + + return 0; +} + +int prestera_hw_nh_group_create(struct prestera_switch *sw, u16 nh_count, + u32 *grp_id) +{ + struct prestera_msg_nh_grp_req req = { .size = __cpu_to_le32((u32)nh_count) }; + struct prestera_msg_nh_grp_resp resp; + int err; + + err = prestera_cmd_ret(sw, PRESTERA_CMD_TYPE_ROUTER_NH_GRP_ADD, + &req.cmd, sizeof(req), &resp.ret, sizeof(resp)); + if (err) + return err; + + *grp_id = __le32_to_cpu(resp.grp_id); + return err; +} + +int prestera_hw_nh_group_delete(struct prestera_switch *sw, u16 nh_count, + u32 grp_id) +{ + struct prestera_msg_nh_grp_req req = { + .grp_id = __cpu_to_le32(grp_id), + .size = __cpu_to_le32(nh_count) + }; + + return prestera_cmd(sw, PRESTERA_CMD_TYPE_ROUTER_NH_GRP_DELETE, + &req.cmd, sizeof(req)); +} + +int prestera_hw_rxtx_init(struct prestera_switch *sw, + struct prestera_rxtx_params *params) +{ + struct prestera_msg_rxtx_resp resp; + struct prestera_msg_rxtx_req req; + int err; + + req.use_sdma = params->use_sdma; + + err = prestera_cmd_ret(sw, PRESTERA_CMD_TYPE_RXTX_INIT, + &req.cmd, sizeof(req), &resp.ret, sizeof(resp)); + if (err) + return err; + + params->map_addr = __le32_to_cpu(resp.map_addr); + + return 0; +} + +int prestera_hw_lag_member_add(struct prestera_port *port, u16 lag_id) +{ + struct prestera_msg_lag_req req = { + .port = __cpu_to_le32(port->hw_id), + .dev = __cpu_to_le32(port->dev_id), + .lag_id = __cpu_to_le16(lag_id), + }; + + return prestera_cmd(port->sw, PRESTERA_CMD_TYPE_LAG_MEMBER_ADD, + &req.cmd, sizeof(req)); +} + +int prestera_hw_lag_member_del(struct prestera_port *port, u16 lag_id) +{ + struct prestera_msg_lag_req req = { + .port = __cpu_to_le32(port->hw_id), + .dev = __cpu_to_le32(port->dev_id), + .lag_id = __cpu_to_le16(lag_id), + }; + + return prestera_cmd(port->sw, PRESTERA_CMD_TYPE_LAG_MEMBER_DELETE, + &req.cmd, sizeof(req)); +} + +int prestera_hw_lag_member_enable(struct prestera_port *port, u16 lag_id, + bool enable) +{ + struct prestera_msg_lag_req req = { + .port = __cpu_to_le32(port->hw_id), + .dev = __cpu_to_le32(port->dev_id), + .lag_id = __cpu_to_le16(lag_id), + }; + u32 cmd; + + cmd = enable ? PRESTERA_CMD_TYPE_LAG_MEMBER_ENABLE : + PRESTERA_CMD_TYPE_LAG_MEMBER_DISABLE; + + return prestera_cmd(port->sw, cmd, &req.cmd, sizeof(req)); +} + +int +prestera_hw_cpu_code_counters_get(struct prestera_switch *sw, u8 code, + enum prestera_hw_cpu_code_cnt_t counter_type, + u64 *packet_count) +{ + struct prestera_msg_cpu_code_counter_req req = { + .counter_type = counter_type, + .code = code, + }; + struct mvsw_msg_cpu_code_counter_ret resp; + int err; + + err = prestera_cmd_ret(sw, PRESTERA_CMD_TYPE_CPU_CODE_COUNTERS_GET, + &req.cmd, sizeof(req), &resp.ret, sizeof(resp)); + if (err) + return err; + + *packet_count = __le64_to_cpu(resp.packet_count); + + return 0; +} + +int prestera_hw_event_handler_register(struct prestera_switch *sw, + enum prestera_event_type type, + prestera_event_cb_t fn, + void *arg) +{ + struct prestera_fw_event_handler *eh; + + eh = __find_event_handler(sw, type); + if (eh) + return -EEXIST; + + eh = kmalloc(sizeof(*eh), GFP_KERNEL); + if (!eh) + return -ENOMEM; + + eh->type = type; + eh->func = fn; + eh->arg = arg; + + INIT_LIST_HEAD(&eh->list); + + list_add_rcu(&eh->list, &sw->event_handlers); + + return 0; +} + +void prestera_hw_event_handler_unregister(struct prestera_switch *sw, + enum prestera_event_type type, + prestera_event_cb_t fn) +{ + struct prestera_fw_event_handler *eh; + + eh = __find_event_handler(sw, type); + if (!eh) + return; + + list_del_rcu(&eh->list); + kfree_rcu(eh, rcu); +} + +int prestera_hw_counter_trigger(struct prestera_switch *sw, u32 block_id) +{ + struct prestera_msg_counter_req req = { + .block_id = __cpu_to_le32(block_id) + }; + + return prestera_cmd(sw, PRESTERA_CMD_TYPE_COUNTER_TRIGGER, + &req.cmd, sizeof(req)); +} + +int prestera_hw_counter_abort(struct prestera_switch *sw) +{ + struct prestera_msg_counter_req req; + + return prestera_cmd(sw, PRESTERA_CMD_TYPE_COUNTER_ABORT, + &req.cmd, sizeof(req)); +} + +int prestera_hw_counters_get(struct prestera_switch *sw, u32 idx, + u32 *len, bool *done, + struct prestera_counter_stats *stats) +{ + struct prestera_msg_counter_resp *resp; + struct prestera_msg_counter_req req = { + .block_id = __cpu_to_le32(idx), + .num_counters = __cpu_to_le32(*len), + }; + size_t size = struct_size(resp, stats, *len); + int err, i; + + resp = kmalloc(size, GFP_KERNEL); + if (!resp) + return -ENOMEM; + + err = prestera_cmd_ret(sw, PRESTERA_CMD_TYPE_COUNTER_GET, + &req.cmd, sizeof(req), &resp->ret, size); + if (err) + goto free_buff; + + for (i = 0; i < __le32_to_cpu(resp->num_counters); i++) { + stats[i].packets += __le64_to_cpu(resp->stats[i].packets); + stats[i].bytes += __le64_to_cpu(resp->stats[i].bytes); + } + + *len = __le32_to_cpu(resp->num_counters); + *done = __le32_to_cpu(resp->done); + +free_buff: + kfree(resp); + return err; +} + +int prestera_hw_counter_block_get(struct prestera_switch *sw, + u32 client, u32 *block_id, u32 *offset, + u32 *num_counters) +{ + struct prestera_msg_counter_resp resp; + struct prestera_msg_counter_req req = { + .client = __cpu_to_le32(client) + }; + int err; + + err = prestera_cmd_ret(sw, PRESTERA_CMD_TYPE_COUNTER_BLOCK_GET, + &req.cmd, sizeof(req), &resp.ret, sizeof(resp)); + if (err) + return err; + + *block_id = __le32_to_cpu(resp.block_id); + *offset = __le32_to_cpu(resp.offset); + *num_counters = __le32_to_cpu(resp.num_counters); + + return 0; +} + +int prestera_hw_counter_block_release(struct prestera_switch *sw, + u32 block_id) +{ + struct prestera_msg_counter_req req = { + .block_id = __cpu_to_le32(block_id) + }; + + return prestera_cmd(sw, PRESTERA_CMD_TYPE_COUNTER_BLOCK_RELEASE, + &req.cmd, sizeof(req)); +} + +int prestera_hw_counter_clear(struct prestera_switch *sw, u32 block_id, + u32 counter_id) +{ + struct prestera_msg_counter_req req = { + .block_id = __cpu_to_le32(block_id), + .num_counters = __cpu_to_le32(counter_id) + }; + + return prestera_cmd(sw, PRESTERA_CMD_TYPE_COUNTER_CLEAR, + &req.cmd, sizeof(req)); +} + +int prestera_hw_policer_create(struct prestera_switch *sw, u8 type, + u32 *policer_id) +{ + struct prestera_msg_policer_resp resp; + struct prestera_msg_policer_req req = { + .type = type + }; + int err; + + err = prestera_cmd_ret(sw, PRESTERA_CMD_TYPE_POLICER_CREATE, + &req.cmd, sizeof(req), &resp.ret, sizeof(resp)); + if (err) + return err; + + *policer_id = __le32_to_cpu(resp.id); + return 0; +} + +int prestera_hw_policer_release(struct prestera_switch *sw, + u32 policer_id) +{ + struct prestera_msg_policer_req req = { + .id = __cpu_to_le32(policer_id) + }; + + return prestera_cmd(sw, PRESTERA_CMD_TYPE_POLICER_RELEASE, + &req.cmd, sizeof(req)); +} + +int prestera_hw_policer_sr_tcm_set(struct prestera_switch *sw, + u32 policer_id, u64 cir, u32 cbs) +{ + struct prestera_msg_policer_req req = { + .mode = PRESTERA_POLICER_MODE_SR_TCM, + .id = __cpu_to_le32(policer_id), + .sr_tcm = { + .cir = __cpu_to_le64(cir), + .cbs = __cpu_to_le32(cbs) + } + }; + + return prestera_cmd(sw, PRESTERA_CMD_TYPE_POLICER_SET, + &req.cmd, sizeof(req)); +} + +int prestera_hw_flood_domain_create(struct prestera_flood_domain *domain) +{ + struct prestera_msg_flood_domain_create_resp resp; + struct prestera_msg_flood_domain_create_req req; + int err; + + err = prestera_cmd_ret(domain->sw, + PRESTERA_CMD_TYPE_FLOOD_DOMAIN_CREATE, &req.cmd, + sizeof(req), &resp.ret, sizeof(resp)); + if (err) + return err; + + domain->idx = __le32_to_cpu(resp.flood_domain_idx); + + return 0; +} + +int prestera_hw_flood_domain_destroy(struct prestera_flood_domain *domain) +{ + struct prestera_msg_flood_domain_destroy_req req = { + .flood_domain_idx = __cpu_to_le32(domain->idx), + }; + + return prestera_cmd(domain->sw, PRESTERA_CMD_TYPE_FLOOD_DOMAIN_DESTROY, + &req.cmd, sizeof(req)); +} + +int prestera_hw_flood_domain_ports_set(struct prestera_flood_domain *domain) +{ + struct prestera_flood_domain_port *flood_domain_port; + struct prestera_msg_flood_domain_ports_set_req *req; + struct prestera_msg_flood_domain_port *ports; + struct prestera_switch *sw = domain->sw; + struct prestera_port *port; + u32 ports_num = 0; + int buf_size; + void *buff; + u16 lag_id; + int err; + + list_for_each_entry(flood_domain_port, &domain->flood_domain_port_list, + flood_domain_port_node) + ports_num++; + + if (!ports_num) + return -EINVAL; + + buf_size = sizeof(*req) + sizeof(*ports) * ports_num; + + buff = kmalloc(buf_size, GFP_KERNEL); + if (!buff) + return -ENOMEM; + + req = buff; + ports = buff + sizeof(*req); + + req->flood_domain_idx = __cpu_to_le32(domain->idx); + req->ports_num = __cpu_to_le32(ports_num); + + list_for_each_entry(flood_domain_port, &domain->flood_domain_port_list, + flood_domain_port_node) { + if (netif_is_lag_master(flood_domain_port->dev)) { + if (prestera_lag_id(sw, flood_domain_port->dev, + &lag_id)) { + kfree(buff); + return -EINVAL; + } + + ports->port_type = + __cpu_to_le16(PRESTERA_HW_FLOOD_DOMAIN_PORT_TYPE_LAG); + ports->lag_id = __cpu_to_le16(lag_id); + } else { + port = prestera_port_dev_lower_find(flood_domain_port->dev); + + ports->port_type = + __cpu_to_le16(PRESTERA_HW_FDB_ENTRY_TYPE_REG_PORT); + ports->dev_num = __cpu_to_le32(port->dev_id); + ports->port_num = __cpu_to_le32(port->hw_id); + } + + ports->vid = __cpu_to_le16(flood_domain_port->vid); + + ports++; + } + + err = prestera_cmd(sw, PRESTERA_CMD_TYPE_FLOOD_DOMAIN_PORTS_SET, + &req->cmd, buf_size); + + kfree(buff); + + return err; +} + +int prestera_hw_flood_domain_ports_reset(struct prestera_flood_domain *domain) +{ + struct prestera_msg_flood_domain_ports_reset_req req = { + .flood_domain_idx = __cpu_to_le32(domain->idx), + }; + + return prestera_cmd(domain->sw, + PRESTERA_CMD_TYPE_FLOOD_DOMAIN_PORTS_RESET, &req.cmd, + sizeof(req)); +} + +int prestera_hw_mdb_create(struct prestera_mdb_entry *mdb) +{ + struct prestera_msg_mdb_create_req req = { + .flood_domain_idx = __cpu_to_le32(mdb->flood_domain->idx), + .vid = __cpu_to_le16(mdb->vid), + }; + + memcpy(req.mac, mdb->addr, ETH_ALEN); + + return prestera_cmd(mdb->sw, PRESTERA_CMD_TYPE_MDB_CREATE, &req.cmd, + sizeof(req)); +} + +int prestera_hw_mdb_destroy(struct prestera_mdb_entry *mdb) +{ + struct prestera_msg_mdb_destroy_req req = { + .flood_domain_idx = __cpu_to_le32(mdb->flood_domain->idx), + .vid = __cpu_to_le16(mdb->vid), + }; + + memcpy(req.mac, mdb->addr, ETH_ALEN); + + return prestera_cmd(mdb->sw, PRESTERA_CMD_TYPE_MDB_DESTROY, &req.cmd, + sizeof(req)); +} diff --git a/drivers/net/ethernet/marvell/prestera/prestera_hw.h b/drivers/net/ethernet/marvell/prestera/prestera_hw.h new file mode 100644 index 000000000..0a929279e --- /dev/null +++ b/drivers/net/ethernet/marvell/prestera/prestera_hw.h @@ -0,0 +1,330 @@ +/* SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0 */ +/* Copyright (c) 2019-2020 Marvell International Ltd. All rights reserved. */ + +#ifndef _PRESTERA_HW_H_ +#define _PRESTERA_HW_H_ + +#include <linux/types.h> +#include "prestera_acl.h" + +enum prestera_accept_frm_type { + PRESTERA_ACCEPT_FRAME_TYPE_TAGGED, + PRESTERA_ACCEPT_FRAME_TYPE_UNTAGGED, + PRESTERA_ACCEPT_FRAME_TYPE_ALL, +}; + +enum prestera_fdb_flush_mode { + PRESTERA_FDB_FLUSH_MODE_DYNAMIC = BIT(0), + PRESTERA_FDB_FLUSH_MODE_STATIC = BIT(1), + PRESTERA_FDB_FLUSH_MODE_ALL = PRESTERA_FDB_FLUSH_MODE_DYNAMIC + | PRESTERA_FDB_FLUSH_MODE_STATIC, +}; + +enum { + PRESTERA_MAC_MODE_INTERNAL, + PRESTERA_MAC_MODE_SGMII, + PRESTERA_MAC_MODE_1000BASE_X, + PRESTERA_MAC_MODE_KR, + PRESTERA_MAC_MODE_KR2, + PRESTERA_MAC_MODE_KR4, + PRESTERA_MAC_MODE_CR, + PRESTERA_MAC_MODE_CR2, + PRESTERA_MAC_MODE_CR4, + PRESTERA_MAC_MODE_SR_LR, + PRESTERA_MAC_MODE_SR_LR2, + PRESTERA_MAC_MODE_SR_LR4, + + PRESTERA_MAC_MODE_MAX +}; + +enum { + PRESTERA_LINK_MODE_10baseT_Half, + PRESTERA_LINK_MODE_10baseT_Full, + PRESTERA_LINK_MODE_100baseT_Half, + PRESTERA_LINK_MODE_100baseT_Full, + PRESTERA_LINK_MODE_1000baseT_Half, + PRESTERA_LINK_MODE_1000baseT_Full, + PRESTERA_LINK_MODE_1000baseX_Full, + PRESTERA_LINK_MODE_1000baseKX_Full, + PRESTERA_LINK_MODE_2500baseX_Full, + PRESTERA_LINK_MODE_10GbaseKR_Full, + PRESTERA_LINK_MODE_10GbaseSR_Full, + PRESTERA_LINK_MODE_10GbaseLR_Full, + PRESTERA_LINK_MODE_20GbaseKR2_Full, + PRESTERA_LINK_MODE_25GbaseCR_Full, + PRESTERA_LINK_MODE_25GbaseKR_Full, + PRESTERA_LINK_MODE_25GbaseSR_Full, + PRESTERA_LINK_MODE_40GbaseKR4_Full, + PRESTERA_LINK_MODE_40GbaseCR4_Full, + PRESTERA_LINK_MODE_40GbaseSR4_Full, + PRESTERA_LINK_MODE_50GbaseCR2_Full, + PRESTERA_LINK_MODE_50GbaseKR2_Full, + PRESTERA_LINK_MODE_50GbaseSR2_Full, + PRESTERA_LINK_MODE_100GbaseKR4_Full, + PRESTERA_LINK_MODE_100GbaseSR4_Full, + PRESTERA_LINK_MODE_100GbaseCR4_Full, + + PRESTERA_LINK_MODE_MAX +}; + +enum { + PRESTERA_PORT_TYPE_NONE, + PRESTERA_PORT_TYPE_TP, + PRESTERA_PORT_TYPE_AUI, + PRESTERA_PORT_TYPE_MII, + PRESTERA_PORT_TYPE_FIBRE, + PRESTERA_PORT_TYPE_BNC, + PRESTERA_PORT_TYPE_DA, + PRESTERA_PORT_TYPE_OTHER, + + PRESTERA_PORT_TYPE_MAX +}; + +enum { + PRESTERA_PORT_TCVR_COPPER, + PRESTERA_PORT_TCVR_SFP, + + PRESTERA_PORT_TCVR_MAX +}; + +enum { + PRESTERA_PORT_FEC_OFF, + PRESTERA_PORT_FEC_BASER, + PRESTERA_PORT_FEC_RS, + + PRESTERA_PORT_FEC_MAX +}; + +enum { + PRESTERA_PORT_DUPLEX_HALF, + PRESTERA_PORT_DUPLEX_FULL, +}; + +enum { + PRESTERA_STP_DISABLED, + PRESTERA_STP_BLOCK_LISTEN, + PRESTERA_STP_LEARN, + PRESTERA_STP_FORWARD, +}; + +enum { + PRESTERA_POLICER_TYPE_INGRESS, + PRESTERA_POLICER_TYPE_EGRESS +}; + +enum prestera_hw_cpu_code_cnt_t { + PRESTERA_HW_CPU_CODE_CNT_TYPE_DROP = 0, + PRESTERA_HW_CPU_CODE_CNT_TYPE_TRAP = 1, +}; + +enum prestera_hw_vtcam_direction_t { + PRESTERA_HW_VTCAM_DIR_INGRESS = 0, + PRESTERA_HW_VTCAM_DIR_EGRESS = 1, +}; + +enum { + PRESTERA_HW_COUNTER_CLIENT_INGRESS_LOOKUP_0 = 0, + PRESTERA_HW_COUNTER_CLIENT_INGRESS_LOOKUP_1 = 1, + PRESTERA_HW_COUNTER_CLIENT_INGRESS_LOOKUP_2 = 2, + PRESTERA_HW_COUNTER_CLIENT_EGRESS_LOOKUP = 3, +}; + +struct prestera_switch; +struct prestera_port; +struct prestera_port_stats; +struct prestera_port_caps; +enum prestera_event_type; +struct prestera_event; + +typedef void (*prestera_event_cb_t) + (struct prestera_switch *sw, struct prestera_event *evt, void *arg); + +struct prestera_rxtx_params; +struct prestera_acl_hw_action_info; +struct prestera_acl_iface; +struct prestera_counter_stats; +struct prestera_iface; +struct prestera_flood_domain; +struct prestera_mdb_entry; +struct prestera_neigh_info; + +/* Switch API */ +int prestera_hw_switch_init(struct prestera_switch *sw); +void prestera_hw_switch_fini(struct prestera_switch *sw); +int prestera_hw_switch_ageing_set(struct prestera_switch *sw, u32 ageing_ms); +int prestera_hw_switch_mac_set(struct prestera_switch *sw, const char *mac); + +/* Port API */ +int prestera_hw_port_info_get(const struct prestera_port *port, + u32 *dev_id, u32 *hw_id, u16 *fp_id); + +int prestera_hw_port_mac_mode_get(const struct prestera_port *port, + u32 *mode, u32 *speed, u8 *duplex, u8 *fec); +int prestera_hw_port_mac_mode_set(const struct prestera_port *port, + bool admin, u32 mode, u8 inband, + u32 speed, u8 duplex, u8 fec); +int prestera_hw_port_phy_mode_get(const struct prestera_port *port, + u8 *mdix, u64 *lmode_bmap, + bool *fc_pause, bool *fc_asym); +int prestera_hw_port_phy_mode_set(const struct prestera_port *port, + bool admin, bool adv, u32 mode, u64 modes, + u8 mdix); + +int prestera_hw_port_mtu_set(const struct prestera_port *port, u32 mtu); +int prestera_hw_port_mtu_get(const struct prestera_port *port, u32 *mtu); +int prestera_hw_port_mac_set(const struct prestera_port *port, const char *mac); +int prestera_hw_port_mac_get(const struct prestera_port *port, char *mac); +int prestera_hw_port_cap_get(const struct prestera_port *port, + struct prestera_port_caps *caps); +int prestera_hw_port_type_get(const struct prestera_port *port, u8 *type); +int prestera_hw_port_autoneg_restart(struct prestera_port *port); +int prestera_hw_port_stats_get(const struct prestera_port *port, + struct prestera_port_stats *stats); +int prestera_hw_port_speed_get(const struct prestera_port *port, u32 *speed); +int prestera_hw_port_learning_set(struct prestera_port *port, bool enable); +int prestera_hw_port_uc_flood_set(const struct prestera_port *port, bool flood); +int prestera_hw_port_mc_flood_set(const struct prestera_port *port, bool flood); +int prestera_hw_port_br_locked_set(const struct prestera_port *port, + bool br_locked); +int prestera_hw_port_accept_frm_type(struct prestera_port *port, + enum prestera_accept_frm_type type); +/* Vlan API */ +int prestera_hw_vlan_create(struct prestera_switch *sw, u16 vid); +int prestera_hw_vlan_delete(struct prestera_switch *sw, u16 vid); +int prestera_hw_vlan_port_set(struct prestera_port *port, u16 vid, + bool is_member, bool untagged); +int prestera_hw_vlan_port_vid_set(struct prestera_port *port, u16 vid); +int prestera_hw_vlan_port_stp_set(struct prestera_port *port, u16 vid, u8 state); + +/* FDB API */ +int prestera_hw_fdb_add(struct prestera_port *port, const unsigned char *mac, + u16 vid, bool dynamic); +int prestera_hw_fdb_del(struct prestera_port *port, const unsigned char *mac, + u16 vid); +int prestera_hw_fdb_flush_port(struct prestera_port *port, u32 mode); +int prestera_hw_fdb_flush_vlan(struct prestera_switch *sw, u16 vid, u32 mode); +int prestera_hw_fdb_flush_port_vlan(struct prestera_port *port, u16 vid, + u32 mode); + +/* Bridge API */ +int prestera_hw_bridge_create(struct prestera_switch *sw, u16 *bridge_id); +int prestera_hw_bridge_delete(struct prestera_switch *sw, u16 bridge_id); +int prestera_hw_bridge_port_add(struct prestera_port *port, u16 bridge_id); +int prestera_hw_bridge_port_delete(struct prestera_port *port, u16 bridge_id); + +/* vTCAM API */ +int prestera_hw_vtcam_create(struct prestera_switch *sw, + u8 lookup, const u32 *keymask, u32 *vtcam_id, + enum prestera_hw_vtcam_direction_t direction); +int prestera_hw_vtcam_rule_add(struct prestera_switch *sw, u32 vtcam_id, + u32 prio, void *key, void *keymask, + struct prestera_acl_hw_action_info *act, + u8 n_act, u32 *rule_id); +int prestera_hw_vtcam_rule_del(struct prestera_switch *sw, + u32 vtcam_id, u32 rule_id); +int prestera_hw_vtcam_destroy(struct prestera_switch *sw, u32 vtcam_id); +int prestera_hw_vtcam_iface_bind(struct prestera_switch *sw, + struct prestera_acl_iface *iface, + u32 vtcam_id, u16 pcl_id); +int prestera_hw_vtcam_iface_unbind(struct prestera_switch *sw, + struct prestera_acl_iface *iface, + u32 vtcam_id); + +/* Counter API */ +int prestera_hw_counter_trigger(struct prestera_switch *sw, u32 block_id); +int prestera_hw_counter_abort(struct prestera_switch *sw); +int prestera_hw_counters_get(struct prestera_switch *sw, u32 idx, + u32 *len, bool *done, + struct prestera_counter_stats *stats); +int prestera_hw_counter_block_get(struct prestera_switch *sw, + u32 client, u32 *block_id, u32 *offset, + u32 *num_counters); +int prestera_hw_counter_block_release(struct prestera_switch *sw, + u32 block_id); +int prestera_hw_counter_clear(struct prestera_switch *sw, u32 block_id, + u32 counter_id); + +/* SPAN API */ +int prestera_hw_span_get(const struct prestera_port *port, u8 *span_id); +int prestera_hw_span_bind(const struct prestera_port *port, u8 span_id, + bool ingress); +int prestera_hw_span_unbind(const struct prestera_port *port, bool ingress); +int prestera_hw_span_release(struct prestera_switch *sw, u8 span_id); + +/* Router API */ +int prestera_hw_rif_create(struct prestera_switch *sw, + struct prestera_iface *iif, u8 *mac, u16 *rif_id); +int prestera_hw_rif_delete(struct prestera_switch *sw, u16 rif_id, + struct prestera_iface *iif); + +/* Virtual Router API */ +int prestera_hw_vr_create(struct prestera_switch *sw, u16 *vr_id); +int prestera_hw_vr_delete(struct prestera_switch *sw, u16 vr_id); + +/* LPM PI */ +int prestera_hw_lpm_add(struct prestera_switch *sw, u16 vr_id, + __be32 dst, u32 dst_len, u32 grp_id); +int prestera_hw_lpm_del(struct prestera_switch *sw, u16 vr_id, + __be32 dst, u32 dst_len); + +/* NH API */ +int prestera_hw_nh_entries_set(struct prestera_switch *sw, int count, + struct prestera_neigh_info *nhs, u32 grp_id); +int prestera_hw_nhgrp_blk_get(struct prestera_switch *sw, + u8 *hw_state, u32 buf_size /* Buffer in bytes */); +int prestera_hw_nh_group_create(struct prestera_switch *sw, u16 nh_count, + u32 *grp_id); +int prestera_hw_nh_group_delete(struct prestera_switch *sw, u16 nh_count, + u32 grp_id); + +/* Event handlers */ +int prestera_hw_event_handler_register(struct prestera_switch *sw, + enum prestera_event_type type, + prestera_event_cb_t fn, + void *arg); +void prestera_hw_event_handler_unregister(struct prestera_switch *sw, + enum prestera_event_type type, + prestera_event_cb_t fn); + +/* RX/TX */ +int prestera_hw_rxtx_init(struct prestera_switch *sw, + struct prestera_rxtx_params *params); + +/* LAG API */ +int prestera_hw_lag_member_add(struct prestera_port *port, u16 lag_id); +int prestera_hw_lag_member_del(struct prestera_port *port, u16 lag_id); +int prestera_hw_lag_member_enable(struct prestera_port *port, u16 lag_id, + bool enable); +int prestera_hw_lag_fdb_add(struct prestera_switch *sw, u16 lag_id, + const unsigned char *mac, u16 vid, bool dynamic); +int prestera_hw_lag_fdb_del(struct prestera_switch *sw, u16 lag_id, + const unsigned char *mac, u16 vid); +int prestera_hw_fdb_flush_lag(struct prestera_switch *sw, u16 lag_id, + u32 mode); +int prestera_hw_fdb_flush_lag_vlan(struct prestera_switch *sw, + u16 lag_id, u16 vid, u32 mode); + +/* HW trap/drop counters API */ +int +prestera_hw_cpu_code_counters_get(struct prestera_switch *sw, u8 code, + enum prestera_hw_cpu_code_cnt_t counter_type, + u64 *packet_count); + +/* Policer API */ +int prestera_hw_policer_create(struct prestera_switch *sw, u8 type, + u32 *policer_id); +int prestera_hw_policer_release(struct prestera_switch *sw, + u32 policer_id); +int prestera_hw_policer_sr_tcm_set(struct prestera_switch *sw, + u32 policer_id, u64 cir, u32 cbs); + +/* Flood domain / MDB API */ +int prestera_hw_flood_domain_create(struct prestera_flood_domain *domain); +int prestera_hw_flood_domain_destroy(struct prestera_flood_domain *domain); +int prestera_hw_flood_domain_ports_set(struct prestera_flood_domain *domain); +int prestera_hw_flood_domain_ports_reset(struct prestera_flood_domain *domain); + +int prestera_hw_mdb_create(struct prestera_mdb_entry *mdb); +int prestera_hw_mdb_destroy(struct prestera_mdb_entry *mdb); + +#endif /* _PRESTERA_HW_H_ */ diff --git a/drivers/net/ethernet/marvell/prestera/prestera_main.c b/drivers/net/ethernet/marvell/prestera/prestera_main.c new file mode 100644 index 000000000..47796e4d9 --- /dev/null +++ b/drivers/net/ethernet/marvell/prestera/prestera_main.c @@ -0,0 +1,1541 @@ +// SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0 +/* Copyright (c) 2019-2020 Marvell International Ltd. All rights reserved */ + +#include <linux/etherdevice.h> +#include <linux/jiffies.h> +#include <linux/list.h> +#include <linux/module.h> +#include <linux/netdev_features.h> +#include <linux/of.h> +#include <linux/of_net.h> +#include <linux/if_vlan.h> +#include <linux/phylink.h> + +#include "prestera.h" +#include "prestera_hw.h" +#include "prestera_acl.h" +#include "prestera_flow.h" +#include "prestera_span.h" +#include "prestera_rxtx.h" +#include "prestera_devlink.h" +#include "prestera_ethtool.h" +#include "prestera_counter.h" +#include "prestera_switchdev.h" + +#define PRESTERA_MTU_DEFAULT 1536 + +#define PRESTERA_STATS_DELAY_MS 1000 + +#define PRESTERA_MAC_ADDR_NUM_MAX 255 + +static struct workqueue_struct *prestera_wq; +static struct workqueue_struct *prestera_owq; + +void prestera_queue_work(struct work_struct *work) +{ + queue_work(prestera_owq, work); +} + +void prestera_queue_delayed_work(struct delayed_work *work, unsigned long delay) +{ + queue_delayed_work(prestera_wq, work, delay); +} + +void prestera_queue_drain(void) +{ + drain_workqueue(prestera_wq); + drain_workqueue(prestera_owq); +} + +int prestera_port_learning_set(struct prestera_port *port, bool learn) +{ + return prestera_hw_port_learning_set(port, learn); +} + +int prestera_port_uc_flood_set(struct prestera_port *port, bool flood) +{ + return prestera_hw_port_uc_flood_set(port, flood); +} + +int prestera_port_mc_flood_set(struct prestera_port *port, bool flood) +{ + return prestera_hw_port_mc_flood_set(port, flood); +} + +int prestera_port_br_locked_set(struct prestera_port *port, bool br_locked) +{ + return prestera_hw_port_br_locked_set(port, br_locked); +} + +int prestera_port_pvid_set(struct prestera_port *port, u16 vid) +{ + enum prestera_accept_frm_type frm_type; + int err; + + frm_type = PRESTERA_ACCEPT_FRAME_TYPE_TAGGED; + + if (vid) { + err = prestera_hw_vlan_port_vid_set(port, vid); + if (err) + return err; + + frm_type = PRESTERA_ACCEPT_FRAME_TYPE_ALL; + } + + err = prestera_hw_port_accept_frm_type(port, frm_type); + if (err && frm_type == PRESTERA_ACCEPT_FRAME_TYPE_ALL) + prestera_hw_vlan_port_vid_set(port, port->pvid); + + port->pvid = vid; + return 0; +} + +struct prestera_port *prestera_port_find_by_hwid(struct prestera_switch *sw, + u32 dev_id, u32 hw_id) +{ + struct prestera_port *port = NULL, *tmp; + + read_lock(&sw->port_list_lock); + list_for_each_entry(tmp, &sw->port_list, list) { + if (tmp->dev_id == dev_id && tmp->hw_id == hw_id) { + port = tmp; + break; + } + } + read_unlock(&sw->port_list_lock); + + return port; +} + +struct prestera_port *prestera_find_port(struct prestera_switch *sw, u32 id) +{ + struct prestera_port *port = NULL, *tmp; + + read_lock(&sw->port_list_lock); + list_for_each_entry(tmp, &sw->port_list, list) { + if (tmp->id == id) { + port = tmp; + break; + } + } + read_unlock(&sw->port_list_lock); + + return port; +} + +struct prestera_switch *prestera_switch_get(struct net_device *dev) +{ + struct prestera_port *port; + + port = prestera_port_dev_lower_find(dev); + return port ? port->sw : NULL; +} + +int prestera_port_cfg_mac_read(struct prestera_port *port, + struct prestera_port_mac_config *cfg) +{ + *cfg = port->cfg_mac; + return 0; +} + +int prestera_port_cfg_mac_write(struct prestera_port *port, + struct prestera_port_mac_config *cfg) +{ + int err; + + err = prestera_hw_port_mac_mode_set(port, cfg->admin, + cfg->mode, cfg->inband, cfg->speed, + cfg->duplex, cfg->fec); + if (err) + return err; + + port->cfg_mac = *cfg; + return 0; +} + +static int prestera_port_open(struct net_device *dev) +{ + struct prestera_port *port = netdev_priv(dev); + struct prestera_port_mac_config cfg_mac; + int err = 0; + + if (port->phy_link) { + phylink_start(port->phy_link); + } else { + if (port->caps.transceiver == PRESTERA_PORT_TCVR_SFP) { + err = prestera_port_cfg_mac_read(port, &cfg_mac); + if (!err) { + cfg_mac.admin = true; + err = prestera_port_cfg_mac_write(port, + &cfg_mac); + } + } else { + port->cfg_phy.admin = true; + err = prestera_hw_port_phy_mode_set(port, true, + port->autoneg, + port->cfg_phy.mode, + port->adver_link_modes, + port->cfg_phy.mdix); + } + } + + netif_start_queue(dev); + + return err; +} + +static int prestera_port_close(struct net_device *dev) +{ + struct prestera_port *port = netdev_priv(dev); + struct prestera_port_mac_config cfg_mac; + int err = 0; + + netif_stop_queue(dev); + + if (port->phy_link) { + phylink_stop(port->phy_link); + phylink_disconnect_phy(port->phy_link); + err = prestera_port_cfg_mac_read(port, &cfg_mac); + if (!err) { + cfg_mac.admin = false; + prestera_port_cfg_mac_write(port, &cfg_mac); + } + } else { + if (port->caps.transceiver == PRESTERA_PORT_TCVR_SFP) { + err = prestera_port_cfg_mac_read(port, &cfg_mac); + if (!err) { + cfg_mac.admin = false; + prestera_port_cfg_mac_write(port, &cfg_mac); + } + } else { + port->cfg_phy.admin = false; + err = prestera_hw_port_phy_mode_set(port, false, port->autoneg, + port->cfg_phy.mode, + port->adver_link_modes, + port->cfg_phy.mdix); + } + } + + return err; +} + +static void +prestera_port_mac_state_cache_read(struct prestera_port *port, + struct prestera_port_mac_state *state) +{ + spin_lock(&port->state_mac_lock); + *state = port->state_mac; + spin_unlock(&port->state_mac_lock); +} + +static void +prestera_port_mac_state_cache_write(struct prestera_port *port, + struct prestera_port_mac_state *state) +{ + spin_lock(&port->state_mac_lock); + port->state_mac = *state; + spin_unlock(&port->state_mac_lock); +} + +static struct prestera_port *prestera_pcs_to_port(struct phylink_pcs *pcs) +{ + return container_of(pcs, struct prestera_port, phylink_pcs); +} + +static void prestera_mac_config(struct phylink_config *config, + unsigned int an_mode, + const struct phylink_link_state *state) +{ +} + +static void prestera_mac_link_down(struct phylink_config *config, + unsigned int mode, phy_interface_t interface) +{ + struct net_device *ndev = to_net_dev(config->dev); + struct prestera_port *port = netdev_priv(ndev); + struct prestera_port_mac_state state_mac; + + /* Invalidate. Parameters will update on next link event. */ + memset(&state_mac, 0, sizeof(state_mac)); + state_mac.valid = false; + prestera_port_mac_state_cache_write(port, &state_mac); +} + +static void prestera_mac_link_up(struct phylink_config *config, + struct phy_device *phy, + unsigned int mode, phy_interface_t interface, + int speed, int duplex, + bool tx_pause, bool rx_pause) +{ +} + +static struct phylink_pcs * +prestera_mac_select_pcs(struct phylink_config *config, + phy_interface_t interface) +{ + struct net_device *dev = to_net_dev(config->dev); + struct prestera_port *port = netdev_priv(dev); + + return &port->phylink_pcs; +} + +static void prestera_pcs_get_state(struct phylink_pcs *pcs, + struct phylink_link_state *state) +{ + struct prestera_port *port = container_of(pcs, struct prestera_port, + phylink_pcs); + struct prestera_port_mac_state smac; + + prestera_port_mac_state_cache_read(port, &smac); + + if (smac.valid) { + state->link = smac.oper ? 1 : 0; + /* AN is completed, when port is up */ + state->an_complete = (smac.oper && port->autoneg) ? 1 : 0; + state->speed = smac.speed; + state->duplex = smac.duplex; + } else { + state->link = 0; + state->an_complete = 0; + } +} + +static int prestera_pcs_config(struct phylink_pcs *pcs, + unsigned int mode, + phy_interface_t interface, + const unsigned long *advertising, + bool permit_pause_to_mac) +{ + struct prestera_port *port = prestera_pcs_to_port(pcs); + struct prestera_port_mac_config cfg_mac; + int err; + + err = prestera_port_cfg_mac_read(port, &cfg_mac); + if (err) + return err; + + cfg_mac.admin = true; + cfg_mac.fec = PRESTERA_PORT_FEC_OFF; + + switch (interface) { + case PHY_INTERFACE_MODE_10GBASER: + cfg_mac.speed = SPEED_10000; + cfg_mac.inband = 0; + cfg_mac.mode = PRESTERA_MAC_MODE_SR_LR; + break; + case PHY_INTERFACE_MODE_2500BASEX: + cfg_mac.speed = SPEED_2500; + cfg_mac.duplex = DUPLEX_FULL; + cfg_mac.inband = test_bit(ETHTOOL_LINK_MODE_Autoneg_BIT, + advertising); + cfg_mac.mode = PRESTERA_MAC_MODE_SGMII; + break; + case PHY_INTERFACE_MODE_SGMII: + cfg_mac.inband = 1; + cfg_mac.mode = PRESTERA_MAC_MODE_SGMII; + break; + case PHY_INTERFACE_MODE_1000BASEX: + default: + cfg_mac.speed = SPEED_1000; + cfg_mac.duplex = DUPLEX_FULL; + cfg_mac.inband = test_bit(ETHTOOL_LINK_MODE_Autoneg_BIT, + advertising); + cfg_mac.mode = PRESTERA_MAC_MODE_1000BASE_X; + break; + } + + err = prestera_port_cfg_mac_write(port, &cfg_mac); + if (err) + return err; + + return 0; +} + +static void prestera_pcs_an_restart(struct phylink_pcs *pcs) +{ + /* TODO: add 1000basex AN restart support + * (Currently FW has no support for 1000baseX AN restart, but it will in the future, + * so as for now the function would stay empty.) + */ +} + +static const struct phylink_mac_ops prestera_mac_ops = { + .validate = phylink_generic_validate, + .mac_select_pcs = prestera_mac_select_pcs, + .mac_config = prestera_mac_config, + .mac_link_down = prestera_mac_link_down, + .mac_link_up = prestera_mac_link_up, +}; + +static const struct phylink_pcs_ops prestera_pcs_ops = { + .pcs_get_state = prestera_pcs_get_state, + .pcs_config = prestera_pcs_config, + .pcs_an_restart = prestera_pcs_an_restart, +}; + +static int prestera_port_sfp_bind(struct prestera_port *port) +{ + struct prestera_switch *sw = port->sw; + struct device_node *ports, *node; + struct fwnode_handle *fwnode; + struct phylink *phy_link; + int err; + + if (!sw->np) + return 0; + + of_node_get(sw->np); + ports = of_find_node_by_name(sw->np, "ports"); + + for_each_child_of_node(ports, node) { + int num; + + err = of_property_read_u32(node, "prestera,port-num", &num); + if (err) { + dev_err(sw->dev->dev, + "device node %pOF has no valid reg property: %d\n", + node, err); + goto out; + } + + if (port->fp_id != num) + continue; + + port->phylink_pcs.ops = &prestera_pcs_ops; + + port->phy_config.dev = &port->dev->dev; + port->phy_config.type = PHYLINK_NETDEV; + + fwnode = of_fwnode_handle(node); + + __set_bit(PHY_INTERFACE_MODE_10GBASER, + port->phy_config.supported_interfaces); + __set_bit(PHY_INTERFACE_MODE_2500BASEX, + port->phy_config.supported_interfaces); + __set_bit(PHY_INTERFACE_MODE_SGMII, + port->phy_config.supported_interfaces); + __set_bit(PHY_INTERFACE_MODE_1000BASEX, + port->phy_config.supported_interfaces); + + port->phy_config.mac_capabilities = + MAC_1000 | MAC_2500FD | MAC_10000FD; + + phy_link = phylink_create(&port->phy_config, fwnode, + PHY_INTERFACE_MODE_INTERNAL, + &prestera_mac_ops); + if (IS_ERR(phy_link)) { + netdev_err(port->dev, "failed to create phylink\n"); + err = PTR_ERR(phy_link); + goto out; + } + + port->phy_link = phy_link; + break; + } + +out: + of_node_put(node); + of_node_put(ports); + return err; +} + +static int prestera_port_sfp_unbind(struct prestera_port *port) +{ + if (port->phy_link) + phylink_destroy(port->phy_link); + + return 0; +} + +static netdev_tx_t prestera_port_xmit(struct sk_buff *skb, + struct net_device *dev) +{ + return prestera_rxtx_xmit(netdev_priv(dev), skb); +} + +int prestera_is_valid_mac_addr(struct prestera_port *port, const u8 *addr) +{ + if (!is_valid_ether_addr(addr)) + return -EADDRNOTAVAIL; + + /* firmware requires that port's MAC address contains first 5 bytes + * of the base MAC address + */ + if (memcmp(port->sw->base_mac, addr, ETH_ALEN - 1)) + return -EINVAL; + + return 0; +} + +static int prestera_port_set_mac_address(struct net_device *dev, void *p) +{ + struct prestera_port *port = netdev_priv(dev); + struct sockaddr *addr = p; + int err; + + err = prestera_is_valid_mac_addr(port, addr->sa_data); + if (err) + return err; + + err = prestera_hw_port_mac_set(port, addr->sa_data); + if (err) + return err; + + eth_hw_addr_set(dev, addr->sa_data); + + return 0; +} + +static int prestera_port_change_mtu(struct net_device *dev, int mtu) +{ + struct prestera_port *port = netdev_priv(dev); + int err; + + err = prestera_hw_port_mtu_set(port, mtu); + if (err) + return err; + + dev->mtu = mtu; + + return 0; +} + +static void prestera_port_get_stats64(struct net_device *dev, + struct rtnl_link_stats64 *stats) +{ + struct prestera_port *port = netdev_priv(dev); + struct prestera_port_stats *port_stats = &port->cached_hw_stats.stats; + + stats->rx_packets = port_stats->broadcast_frames_received + + port_stats->multicast_frames_received + + port_stats->unicast_frames_received; + + stats->tx_packets = port_stats->broadcast_frames_sent + + port_stats->multicast_frames_sent + + port_stats->unicast_frames_sent; + + stats->rx_bytes = port_stats->good_octets_received; + + stats->tx_bytes = port_stats->good_octets_sent; + + stats->rx_errors = port_stats->rx_error_frame_received; + stats->tx_errors = port_stats->mac_trans_error; + + stats->rx_dropped = port_stats->buffer_overrun; + stats->tx_dropped = 0; + + stats->multicast = port_stats->multicast_frames_received; + stats->collisions = port_stats->excessive_collision; + + stats->rx_crc_errors = port_stats->bad_crc; +} + +static void prestera_port_get_hw_stats(struct prestera_port *port) +{ + prestera_hw_port_stats_get(port, &port->cached_hw_stats.stats); +} + +static void prestera_port_stats_update(struct work_struct *work) +{ + struct prestera_port *port = + container_of(work, struct prestera_port, + cached_hw_stats.caching_dw.work); + + prestera_port_get_hw_stats(port); + + queue_delayed_work(prestera_wq, &port->cached_hw_stats.caching_dw, + msecs_to_jiffies(PRESTERA_STATS_DELAY_MS)); +} + +static int prestera_port_setup_tc(struct net_device *dev, + enum tc_setup_type type, + void *type_data) +{ + struct prestera_port *port = netdev_priv(dev); + + switch (type) { + case TC_SETUP_BLOCK: + return prestera_flow_block_setup(port, type_data); + default: + return -EOPNOTSUPP; + } +} + +static const struct net_device_ops prestera_netdev_ops = { + .ndo_open = prestera_port_open, + .ndo_stop = prestera_port_close, + .ndo_start_xmit = prestera_port_xmit, + .ndo_setup_tc = prestera_port_setup_tc, + .ndo_change_mtu = prestera_port_change_mtu, + .ndo_get_stats64 = prestera_port_get_stats64, + .ndo_set_mac_address = prestera_port_set_mac_address, + .ndo_get_devlink_port = prestera_devlink_get_port, +}; + +int prestera_port_autoneg_set(struct prestera_port *port, u64 link_modes) +{ + int err; + + if (port->autoneg && port->adver_link_modes == link_modes) + return 0; + + err = prestera_hw_port_phy_mode_set(port, port->cfg_phy.admin, + true, 0, link_modes, + port->cfg_phy.mdix); + if (err) + return err; + + port->adver_fec = BIT(PRESTERA_PORT_FEC_OFF); + port->adver_link_modes = link_modes; + port->cfg_phy.mode = 0; + port->autoneg = true; + + return 0; +} + +static void prestera_port_list_add(struct prestera_port *port) +{ + write_lock(&port->sw->port_list_lock); + list_add(&port->list, &port->sw->port_list); + write_unlock(&port->sw->port_list_lock); +} + +static void prestera_port_list_del(struct prestera_port *port) +{ + write_lock(&port->sw->port_list_lock); + list_del(&port->list); + write_unlock(&port->sw->port_list_lock); +} + +static int prestera_port_create(struct prestera_switch *sw, u32 id) +{ + struct prestera_port_mac_config cfg_mac; + struct prestera_port *port; + struct net_device *dev; + int err; + + dev = alloc_etherdev(sizeof(*port)); + if (!dev) + return -ENOMEM; + + port = netdev_priv(dev); + + INIT_LIST_HEAD(&port->vlans_list); + port->pvid = PRESTERA_DEFAULT_VID; + port->lag = NULL; + port->dev = dev; + port->id = id; + port->sw = sw; + + spin_lock_init(&port->state_mac_lock); + + err = prestera_hw_port_info_get(port, &port->dev_id, &port->hw_id, + &port->fp_id); + if (err) { + dev_err(prestera_dev(sw), "Failed to get port(%u) info\n", id); + goto err_port_info_get; + } + + err = prestera_devlink_port_register(port); + if (err) + goto err_dl_port_register; + + dev->features |= NETIF_F_NETNS_LOCAL | NETIF_F_HW_TC; + dev->netdev_ops = &prestera_netdev_ops; + dev->ethtool_ops = &prestera_ethtool_ops; + SET_NETDEV_DEV(dev, sw->dev->dev); + + if (port->caps.transceiver != PRESTERA_PORT_TCVR_SFP) + netif_carrier_off(dev); + + dev->mtu = min_t(unsigned int, sw->mtu_max, PRESTERA_MTU_DEFAULT); + dev->min_mtu = sw->mtu_min; + dev->max_mtu = sw->mtu_max; + + err = prestera_hw_port_mtu_set(port, dev->mtu); + if (err) { + dev_err(prestera_dev(sw), "Failed to set port(%u) mtu(%d)\n", + id, dev->mtu); + goto err_port_init; + } + + if (port->fp_id >= PRESTERA_MAC_ADDR_NUM_MAX) { + err = -EINVAL; + goto err_port_init; + } + + eth_hw_addr_gen(dev, sw->base_mac, port->fp_id); + /* firmware requires that port's MAC address consist of the first + * 5 bytes of the base MAC address + */ + if (memcmp(dev->dev_addr, sw->base_mac, ETH_ALEN - 1)) { + dev_warn(prestera_dev(sw), "Port MAC address wraps for port(%u)\n", id); + dev_addr_mod(dev, 0, sw->base_mac, ETH_ALEN - 1); + } + + err = prestera_hw_port_mac_set(port, dev->dev_addr); + if (err) { + dev_err(prestera_dev(sw), "Failed to set port(%u) mac addr\n", id); + goto err_port_init; + } + + err = prestera_hw_port_cap_get(port, &port->caps); + if (err) { + dev_err(prestera_dev(sw), "Failed to get port(%u) caps\n", id); + goto err_port_init; + } + + port->adver_link_modes = port->caps.supp_link_modes; + port->adver_fec = 0; + port->autoneg = true; + + /* initialize config mac */ + if (port->caps.transceiver != PRESTERA_PORT_TCVR_SFP) { + cfg_mac.admin = true; + cfg_mac.mode = PRESTERA_MAC_MODE_INTERNAL; + } else { + cfg_mac.admin = false; + cfg_mac.mode = PRESTERA_MAC_MODE_MAX; + } + cfg_mac.inband = 0; + cfg_mac.speed = 0; + cfg_mac.duplex = DUPLEX_UNKNOWN; + cfg_mac.fec = PRESTERA_PORT_FEC_OFF; + + err = prestera_port_cfg_mac_write(port, &cfg_mac); + if (err) { + dev_err(prestera_dev(sw), + "Failed to set port(%u) mac mode\n", id); + goto err_port_init; + } + + /* initialize config phy (if this is inegral) */ + if (port->caps.transceiver != PRESTERA_PORT_TCVR_SFP) { + port->cfg_phy.mdix = ETH_TP_MDI_AUTO; + port->cfg_phy.admin = false; + err = prestera_hw_port_phy_mode_set(port, + port->cfg_phy.admin, + false, 0, 0, + port->cfg_phy.mdix); + if (err) { + dev_err(prestera_dev(sw), + "Failed to set port(%u) phy mode\n", id); + goto err_port_init; + } + } + + err = prestera_rxtx_port_init(port); + if (err) + goto err_port_init; + + INIT_DELAYED_WORK(&port->cached_hw_stats.caching_dw, + &prestera_port_stats_update); + + prestera_port_list_add(port); + + err = register_netdev(dev); + if (err) + goto err_register_netdev; + + prestera_devlink_port_set(port); + + err = prestera_port_sfp_bind(port); + if (err) + goto err_sfp_bind; + + return 0; + +err_sfp_bind: + unregister_netdev(dev); +err_register_netdev: + prestera_port_list_del(port); +err_port_init: + prestera_devlink_port_unregister(port); +err_dl_port_register: +err_port_info_get: + free_netdev(dev); + return err; +} + +static void prestera_port_destroy(struct prestera_port *port) +{ + struct net_device *dev = port->dev; + + cancel_delayed_work_sync(&port->cached_hw_stats.caching_dw); + prestera_devlink_port_clear(port); + unregister_netdev(dev); + prestera_port_list_del(port); + prestera_devlink_port_unregister(port); + free_netdev(dev); +} + +static void prestera_destroy_ports(struct prestera_switch *sw) +{ + struct prestera_port *port, *tmp; + + list_for_each_entry_safe(port, tmp, &sw->port_list, list) + prestera_port_destroy(port); +} + +static int prestera_create_ports(struct prestera_switch *sw) +{ + struct prestera_port *port, *tmp; + u32 port_idx; + int err; + + for (port_idx = 0; port_idx < sw->port_count; port_idx++) { + err = prestera_port_create(sw, port_idx); + if (err) + goto err_port_create; + } + + return 0; + +err_port_create: + list_for_each_entry_safe(port, tmp, &sw->port_list, list) { + prestera_port_sfp_unbind(port); + prestera_port_destroy(port); + } + + return err; +} + +static void prestera_port_handle_event(struct prestera_switch *sw, + struct prestera_event *evt, void *arg) +{ + struct prestera_port_mac_state smac; + struct prestera_port_event *pevt; + struct delayed_work *caching_dw; + struct prestera_port *port; + + if (evt->id == PRESTERA_PORT_EVENT_MAC_STATE_CHANGED) { + pevt = &evt->port_evt; + port = prestera_find_port(sw, pevt->port_id); + if (!port || !port->dev) + return; + + caching_dw = &port->cached_hw_stats.caching_dw; + + memset(&smac, 0, sizeof(smac)); + smac.valid = true; + smac.oper = pevt->data.mac.oper; + if (smac.oper) { + smac.mode = pevt->data.mac.mode; + smac.speed = pevt->data.mac.speed; + smac.duplex = pevt->data.mac.duplex; + smac.fc = pevt->data.mac.fc; + smac.fec = pevt->data.mac.fec; + } + prestera_port_mac_state_cache_write(port, &smac); + + if (port->state_mac.oper) { + if (port->phy_link) + phylink_mac_change(port->phy_link, true); + else + netif_carrier_on(port->dev); + + if (!delayed_work_pending(caching_dw)) + queue_delayed_work(prestera_wq, caching_dw, 0); + } else { + if (port->phy_link) + phylink_mac_change(port->phy_link, false); + else if (netif_running(port->dev) && netif_carrier_ok(port->dev)) + netif_carrier_off(port->dev); + + if (delayed_work_pending(caching_dw)) + cancel_delayed_work(caching_dw); + } + } +} + +static int prestera_event_handlers_register(struct prestera_switch *sw) +{ + return prestera_hw_event_handler_register(sw, PRESTERA_EVENT_TYPE_PORT, + prestera_port_handle_event, + NULL); +} + +static void prestera_event_handlers_unregister(struct prestera_switch *sw) +{ + prestera_hw_event_handler_unregister(sw, PRESTERA_EVENT_TYPE_PORT, + prestera_port_handle_event); +} + +static int prestera_switch_set_base_mac_addr(struct prestera_switch *sw) +{ + struct device_node *base_mac_np; + int ret = 0; + + if (sw->np) { + base_mac_np = of_parse_phandle(sw->np, "base-mac-provider", 0); + if (base_mac_np) { + ret = of_get_mac_address(base_mac_np, sw->base_mac); + of_node_put(base_mac_np); + } + } + + if (!is_valid_ether_addr(sw->base_mac) || ret) { + eth_random_addr(sw->base_mac); + dev_info(prestera_dev(sw), "using random base mac address\n"); + } + + return prestera_hw_switch_mac_set(sw, sw->base_mac); +} + +struct prestera_lag *prestera_lag_by_id(struct prestera_switch *sw, u16 id) +{ + return id < sw->lag_max ? &sw->lags[id] : NULL; +} + +static struct prestera_lag *prestera_lag_by_dev(struct prestera_switch *sw, + struct net_device *dev) +{ + struct prestera_lag *lag; + u16 id; + + for (id = 0; id < sw->lag_max; id++) { + lag = &sw->lags[id]; + if (lag->dev == dev) + return lag; + } + + return NULL; +} + +int prestera_lag_id(struct prestera_switch *sw, + struct net_device *lag_dev, u16 *lag_id) +{ + struct prestera_lag *lag; + int free_id = -1; + int id; + + for (id = 0; id < sw->lag_max; id++) { + lag = prestera_lag_by_id(sw, id); + if (lag->member_count) { + if (lag->dev == lag_dev) { + *lag_id = id; + return 0; + } + } else if (free_id < 0) { + free_id = id; + } + } + if (free_id < 0) + return -ENOSPC; + *lag_id = free_id; + return 0; +} + +static struct prestera_lag *prestera_lag_create(struct prestera_switch *sw, + struct net_device *lag_dev) +{ + struct prestera_lag *lag = NULL; + u16 id; + + for (id = 0; id < sw->lag_max; id++) { + lag = &sw->lags[id]; + if (!lag->dev) + break; + } + if (lag) { + INIT_LIST_HEAD(&lag->members); + lag->dev = lag_dev; + } + + return lag; +} + +static void prestera_lag_destroy(struct prestera_switch *sw, + struct prestera_lag *lag) +{ + WARN_ON(!list_empty(&lag->members)); + lag->member_count = 0; + lag->dev = NULL; +} + +static int prestera_lag_port_add(struct prestera_port *port, + struct net_device *lag_dev) +{ + struct prestera_switch *sw = port->sw; + struct prestera_lag *lag; + int err; + + lag = prestera_lag_by_dev(sw, lag_dev); + if (!lag) { + lag = prestera_lag_create(sw, lag_dev); + if (!lag) + return -ENOSPC; + } + + if (lag->member_count >= sw->lag_member_max) + return -ENOSPC; + + err = prestera_hw_lag_member_add(port, lag->lag_id); + if (err) { + if (!lag->member_count) + prestera_lag_destroy(sw, lag); + return err; + } + + list_add(&port->lag_member, &lag->members); + lag->member_count++; + port->lag = lag; + + return 0; +} + +static int prestera_lag_port_del(struct prestera_port *port) +{ + struct prestera_switch *sw = port->sw; + struct prestera_lag *lag = port->lag; + int err; + + if (!lag || !lag->member_count) + return -EINVAL; + + err = prestera_hw_lag_member_del(port, lag->lag_id); + if (err) + return err; + + list_del(&port->lag_member); + lag->member_count--; + port->lag = NULL; + + if (netif_is_bridge_port(lag->dev)) { + struct net_device *br_dev; + + br_dev = netdev_master_upper_dev_get(lag->dev); + + prestera_bridge_port_leave(br_dev, port); + } + + if (!lag->member_count) + prestera_lag_destroy(sw, lag); + + return 0; +} + +bool prestera_port_is_lag_member(const struct prestera_port *port) +{ + return !!port->lag; +} + +u16 prestera_port_lag_id(const struct prestera_port *port) +{ + return port->lag->lag_id; +} + +static int prestera_lag_init(struct prestera_switch *sw) +{ + u16 id; + + sw->lags = kcalloc(sw->lag_max, sizeof(*sw->lags), GFP_KERNEL); + if (!sw->lags) + return -ENOMEM; + + for (id = 0; id < sw->lag_max; id++) + sw->lags[id].lag_id = id; + + return 0; +} + +static void prestera_lag_fini(struct prestera_switch *sw) +{ + u8 idx; + + for (idx = 0; idx < sw->lag_max; idx++) + WARN_ON(sw->lags[idx].member_count); + + kfree(sw->lags); +} + +bool prestera_netdev_check(const struct net_device *dev) +{ + return dev->netdev_ops == &prestera_netdev_ops; +} + +static int prestera_lower_dev_walk(struct net_device *dev, + struct netdev_nested_priv *priv) +{ + struct prestera_port **pport = (struct prestera_port **)priv->data; + + if (prestera_netdev_check(dev)) { + *pport = netdev_priv(dev); + return 1; + } + + return 0; +} + +struct prestera_port *prestera_port_dev_lower_find(struct net_device *dev) +{ + struct prestera_port *port = NULL; + struct netdev_nested_priv priv = { + .data = (void *)&port, + }; + + if (prestera_netdev_check(dev)) + return netdev_priv(dev); + + netdev_walk_all_lower_dev(dev, prestera_lower_dev_walk, &priv); + + return port; +} + +static int prestera_netdev_port_lower_event(struct net_device *dev, + unsigned long event, void *ptr) +{ + struct netdev_notifier_changelowerstate_info *info = ptr; + struct netdev_lag_lower_state_info *lower_state_info; + struct prestera_port *port = netdev_priv(dev); + bool enabled; + + if (!netif_is_lag_port(dev)) + return 0; + if (!prestera_port_is_lag_member(port)) + return 0; + + lower_state_info = info->lower_state_info; + enabled = lower_state_info->link_up && lower_state_info->tx_enabled; + + return prestera_hw_lag_member_enable(port, port->lag->lag_id, enabled); +} + +static bool prestera_lag_master_check(struct net_device *lag_dev, + struct netdev_lag_upper_info *info, + struct netlink_ext_ack *ext_ack) +{ + if (info->tx_type != NETDEV_LAG_TX_TYPE_HASH) { + NL_SET_ERR_MSG_MOD(ext_ack, "Unsupported LAG Tx type"); + return false; + } + + return true; +} + +static int prestera_netdev_port_event(struct net_device *lower, + struct net_device *dev, + unsigned long event, void *ptr) +{ + struct netdev_notifier_info *info = ptr; + struct netdev_notifier_changeupper_info *cu_info; + struct prestera_port *port = netdev_priv(dev); + struct netlink_ext_ack *extack; + struct net_device *upper; + + extack = netdev_notifier_info_to_extack(info); + cu_info = container_of(info, + struct netdev_notifier_changeupper_info, + info); + + switch (event) { + case NETDEV_PRECHANGEUPPER: + upper = cu_info->upper_dev; + if (!netif_is_bridge_master(upper) && + !netif_is_lag_master(upper)) { + NL_SET_ERR_MSG_MOD(extack, "Unknown upper device type"); + return -EINVAL; + } + + if (!cu_info->linking) + break; + + if (netdev_has_any_upper_dev(upper)) { + NL_SET_ERR_MSG_MOD(extack, "Upper device is already enslaved"); + return -EINVAL; + } + + if (netif_is_lag_master(upper) && + !prestera_lag_master_check(upper, cu_info->upper_info, extack)) + return -EOPNOTSUPP; + if (netif_is_lag_master(upper) && vlan_uses_dev(dev)) { + NL_SET_ERR_MSG_MOD(extack, + "Master device is a LAG master and port has a VLAN"); + return -EINVAL; + } + if (netif_is_lag_port(dev) && is_vlan_dev(upper) && + !netif_is_lag_master(vlan_dev_real_dev(upper))) { + NL_SET_ERR_MSG_MOD(extack, + "Can not put a VLAN on a LAG port"); + return -EINVAL; + } + break; + + case NETDEV_CHANGEUPPER: + upper = cu_info->upper_dev; + if (netif_is_bridge_master(upper)) { + if (cu_info->linking) + return prestera_bridge_port_join(upper, port, + extack); + else + prestera_bridge_port_leave(upper, port); + } else if (netif_is_lag_master(upper)) { + if (cu_info->linking) + return prestera_lag_port_add(port, upper); + else + prestera_lag_port_del(port); + } + break; + + case NETDEV_CHANGELOWERSTATE: + return prestera_netdev_port_lower_event(dev, event, ptr); + } + + return 0; +} + +static int prestera_netdevice_lag_event(struct net_device *lag_dev, + unsigned long event, void *ptr) +{ + struct net_device *dev; + struct list_head *iter; + int err; + + netdev_for_each_lower_dev(lag_dev, dev, iter) { + if (prestera_netdev_check(dev)) { + err = prestera_netdev_port_event(lag_dev, dev, event, + ptr); + if (err) + return err; + } + } + + return 0; +} + +static int prestera_netdev_event_handler(struct notifier_block *nb, + unsigned long event, void *ptr) +{ + struct net_device *dev = netdev_notifier_info_to_dev(ptr); + int err = 0; + + if (prestera_netdev_check(dev)) + err = prestera_netdev_port_event(dev, dev, event, ptr); + else if (netif_is_lag_master(dev)) + err = prestera_netdevice_lag_event(dev, event, ptr); + + return notifier_from_errno(err); +} + +struct prestera_mdb_entry * +prestera_mdb_entry_create(struct prestera_switch *sw, + const unsigned char *addr, u16 vid) +{ + struct prestera_flood_domain *flood_domain; + struct prestera_mdb_entry *mdb_entry; + + mdb_entry = kzalloc(sizeof(*mdb_entry), GFP_KERNEL); + if (!mdb_entry) + goto err_mdb_alloc; + + flood_domain = prestera_flood_domain_create(sw); + if (!flood_domain) + goto err_flood_domain_create; + + mdb_entry->sw = sw; + mdb_entry->vid = vid; + mdb_entry->flood_domain = flood_domain; + ether_addr_copy(mdb_entry->addr, addr); + + if (prestera_hw_mdb_create(mdb_entry)) + goto err_mdb_hw_create; + + return mdb_entry; + +err_mdb_hw_create: + prestera_flood_domain_destroy(flood_domain); +err_flood_domain_create: + kfree(mdb_entry); +err_mdb_alloc: + return NULL; +} + +void prestera_mdb_entry_destroy(struct prestera_mdb_entry *mdb_entry) +{ + prestera_hw_mdb_destroy(mdb_entry); + prestera_flood_domain_destroy(mdb_entry->flood_domain); + kfree(mdb_entry); +} + +struct prestera_flood_domain * +prestera_flood_domain_create(struct prestera_switch *sw) +{ + struct prestera_flood_domain *domain; + + domain = kzalloc(sizeof(*domain), GFP_KERNEL); + if (!domain) + return NULL; + + domain->sw = sw; + + if (prestera_hw_flood_domain_create(domain)) { + kfree(domain); + return NULL; + } + + INIT_LIST_HEAD(&domain->flood_domain_port_list); + + return domain; +} + +void prestera_flood_domain_destroy(struct prestera_flood_domain *flood_domain) +{ + WARN_ON(!list_empty(&flood_domain->flood_domain_port_list)); + WARN_ON_ONCE(prestera_hw_flood_domain_destroy(flood_domain)); + kfree(flood_domain); +} + +int +prestera_flood_domain_port_create(struct prestera_flood_domain *flood_domain, + struct net_device *dev, + u16 vid) +{ + struct prestera_flood_domain_port *flood_domain_port; + bool is_first_port_in_list = false; + int err; + + flood_domain_port = kzalloc(sizeof(*flood_domain_port), GFP_KERNEL); + if (!flood_domain_port) { + err = -ENOMEM; + goto err_port_alloc; + } + + flood_domain_port->vid = vid; + + if (list_empty(&flood_domain->flood_domain_port_list)) + is_first_port_in_list = true; + + list_add(&flood_domain_port->flood_domain_port_node, + &flood_domain->flood_domain_port_list); + + flood_domain_port->flood_domain = flood_domain; + flood_domain_port->dev = dev; + + if (!is_first_port_in_list) { + err = prestera_hw_flood_domain_ports_reset(flood_domain); + if (err) + goto err_prestera_mdb_port_create_hw; + } + + err = prestera_hw_flood_domain_ports_set(flood_domain); + if (err) + goto err_prestera_mdb_port_create_hw; + + return 0; + +err_prestera_mdb_port_create_hw: + list_del(&flood_domain_port->flood_domain_port_node); + kfree(flood_domain_port); +err_port_alloc: + return err; +} + +void +prestera_flood_domain_port_destroy(struct prestera_flood_domain_port *port) +{ + struct prestera_flood_domain *flood_domain = port->flood_domain; + + list_del(&port->flood_domain_port_node); + + WARN_ON_ONCE(prestera_hw_flood_domain_ports_reset(flood_domain)); + + if (!list_empty(&flood_domain->flood_domain_port_list)) + WARN_ON_ONCE(prestera_hw_flood_domain_ports_set(flood_domain)); + + kfree(port); +} + +struct prestera_flood_domain_port * +prestera_flood_domain_port_find(struct prestera_flood_domain *flood_domain, + struct net_device *dev, u16 vid) +{ + struct prestera_flood_domain_port *flood_domain_port; + + list_for_each_entry(flood_domain_port, + &flood_domain->flood_domain_port_list, + flood_domain_port_node) + if (flood_domain_port->dev == dev && + vid == flood_domain_port->vid) + return flood_domain_port; + + return NULL; +} + +static int prestera_netdev_event_handler_register(struct prestera_switch *sw) +{ + sw->netdev_nb.notifier_call = prestera_netdev_event_handler; + + return register_netdevice_notifier(&sw->netdev_nb); +} + +static void prestera_netdev_event_handler_unregister(struct prestera_switch *sw) +{ + unregister_netdevice_notifier(&sw->netdev_nb); +} + +static int prestera_switch_init(struct prestera_switch *sw) +{ + int err; + + sw->np = of_find_compatible_node(NULL, NULL, "marvell,prestera"); + + err = prestera_hw_switch_init(sw); + if (err) { + dev_err(prestera_dev(sw), "Failed to init Switch device\n"); + return err; + } + + rwlock_init(&sw->port_list_lock); + INIT_LIST_HEAD(&sw->port_list); + + err = prestera_switch_set_base_mac_addr(sw); + if (err) + return err; + + err = prestera_netdev_event_handler_register(sw); + if (err) + return err; + + err = prestera_router_init(sw); + if (err) + goto err_router_init; + + err = prestera_switchdev_init(sw); + if (err) + goto err_swdev_register; + + err = prestera_rxtx_switch_init(sw); + if (err) + goto err_rxtx_register; + + err = prestera_event_handlers_register(sw); + if (err) + goto err_handlers_register; + + err = prestera_counter_init(sw); + if (err) + goto err_counter_init; + + err = prestera_acl_init(sw); + if (err) + goto err_acl_init; + + err = prestera_span_init(sw); + if (err) + goto err_span_init; + + err = prestera_devlink_traps_register(sw); + if (err) + goto err_dl_register; + + err = prestera_lag_init(sw); + if (err) + goto err_lag_init; + + err = prestera_create_ports(sw); + if (err) + goto err_ports_create; + + prestera_devlink_register(sw); + return 0; + +err_ports_create: + prestera_lag_fini(sw); +err_lag_init: + prestera_devlink_traps_unregister(sw); +err_dl_register: + prestera_span_fini(sw); +err_span_init: + prestera_acl_fini(sw); +err_acl_init: + prestera_counter_fini(sw); +err_counter_init: + prestera_event_handlers_unregister(sw); +err_handlers_register: + prestera_rxtx_switch_fini(sw); +err_rxtx_register: + prestera_switchdev_fini(sw); +err_swdev_register: + prestera_router_fini(sw); +err_router_init: + prestera_netdev_event_handler_unregister(sw); + prestera_hw_switch_fini(sw); + + return err; +} + +static void prestera_switch_fini(struct prestera_switch *sw) +{ + prestera_devlink_unregister(sw); + prestera_destroy_ports(sw); + prestera_lag_fini(sw); + prestera_devlink_traps_unregister(sw); + prestera_span_fini(sw); + prestera_acl_fini(sw); + prestera_counter_fini(sw); + prestera_event_handlers_unregister(sw); + prestera_rxtx_switch_fini(sw); + prestera_switchdev_fini(sw); + prestera_router_fini(sw); + prestera_netdev_event_handler_unregister(sw); + prestera_hw_switch_fini(sw); + of_node_put(sw->np); +} + +int prestera_device_register(struct prestera_device *dev) +{ + struct prestera_switch *sw; + int err; + + sw = prestera_devlink_alloc(dev); + if (!sw) + return -ENOMEM; + + dev->priv = sw; + sw->dev = dev; + + err = prestera_switch_init(sw); + if (err) { + prestera_devlink_free(sw); + return err; + } + + return 0; +} +EXPORT_SYMBOL(prestera_device_register); + +void prestera_device_unregister(struct prestera_device *dev) +{ + struct prestera_switch *sw = dev->priv; + + prestera_switch_fini(sw); + prestera_devlink_free(sw); +} +EXPORT_SYMBOL(prestera_device_unregister); + +static int __init prestera_module_init(void) +{ + prestera_wq = alloc_workqueue("prestera", 0, 0); + if (!prestera_wq) + return -ENOMEM; + + prestera_owq = alloc_ordered_workqueue("prestera_ordered", 0); + if (!prestera_owq) { + destroy_workqueue(prestera_wq); + return -ENOMEM; + } + + return 0; +} + +static void __exit prestera_module_exit(void) +{ + destroy_workqueue(prestera_wq); + destroy_workqueue(prestera_owq); +} + +module_init(prestera_module_init); +module_exit(prestera_module_exit); + +MODULE_LICENSE("Dual BSD/GPL"); +MODULE_DESCRIPTION("Marvell Prestera switch driver"); diff --git a/drivers/net/ethernet/marvell/prestera/prestera_matchall.c b/drivers/net/ethernet/marvell/prestera/prestera_matchall.c new file mode 100644 index 000000000..1da9c1bc1 --- /dev/null +++ b/drivers/net/ethernet/marvell/prestera/prestera_matchall.c @@ -0,0 +1,127 @@ +// SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0 +/* Copyright (c) 2019-2022 Marvell International Ltd. All rights reserved */ + +#include <linux/kernel.h> +#include <linux/list.h> + +#include "prestera.h" +#include "prestera_hw.h" +#include "prestera_flow.h" +#include "prestera_flower.h" +#include "prestera_matchall.h" +#include "prestera_span.h" + +static int prestera_mall_prio_check(struct prestera_flow_block *block, + struct tc_cls_matchall_offload *f) +{ + u32 flower_prio_min; + u32 flower_prio_max; + int err; + + err = prestera_flower_prio_get(block, f->common.chain_index, + &flower_prio_min, &flower_prio_max); + if (err == -ENOENT) + /* No flower filters installed on this chain. */ + return 0; + + if (err) { + NL_SET_ERR_MSG(f->common.extack, "Failed to get flower priorities"); + return err; + } + + if (f->common.prio <= flower_prio_max && !block->ingress) { + NL_SET_ERR_MSG(f->common.extack, "Failed to add in front of existing flower rules"); + return -EOPNOTSUPP; + } + if (f->common.prio >= flower_prio_min && block->ingress) { + NL_SET_ERR_MSG(f->common.extack, "Failed to add behind of existing flower rules"); + return -EOPNOTSUPP; + } + + return 0; +} + +int prestera_mall_prio_get(struct prestera_flow_block *block, + u32 *prio_min, u32 *prio_max) +{ + if (!block->mall.bound) + return -ENOENT; + + *prio_min = block->mall.prio_min; + *prio_max = block->mall.prio_max; + return 0; +} + +static void prestera_mall_prio_update(struct prestera_flow_block *block, + struct tc_cls_matchall_offload *f) +{ + block->mall.prio_min = min(block->mall.prio_min, f->common.prio); + block->mall.prio_max = max(block->mall.prio_max, f->common.prio); +} + +int prestera_mall_replace(struct prestera_flow_block *block, + struct tc_cls_matchall_offload *f) +{ + struct prestera_flow_block_binding *binding; + __be16 protocol = f->common.protocol; + struct flow_action_entry *act; + struct prestera_port *port; + int err; + + if (!flow_offload_has_one_action(&f->rule->action)) { + NL_SET_ERR_MSG(f->common.extack, + "Only singular actions are supported"); + return -EOPNOTSUPP; + } + + act = &f->rule->action.entries[0]; + + if (!prestera_netdev_check(act->dev)) { + NL_SET_ERR_MSG(f->common.extack, + "Only Marvell Prestera port is supported"); + return -EINVAL; + } + if (!tc_cls_can_offload_and_chain0(act->dev, &f->common)) + return -EOPNOTSUPP; + if (act->id != FLOW_ACTION_MIRRED) + return -EOPNOTSUPP; + if (protocol != htons(ETH_P_ALL)) + return -EOPNOTSUPP; + + err = prestera_mall_prio_check(block, f); + if (err) + return err; + + port = netdev_priv(act->dev); + + list_for_each_entry(binding, &block->binding_list, list) { + err = prestera_span_rule_add(binding, port, block->ingress); + if (err == -EEXIST) + return err; + if (err) + goto rollback; + } + + prestera_mall_prio_update(block, f); + + block->mall.bound = true; + return 0; + +rollback: + list_for_each_entry_continue_reverse(binding, + &block->binding_list, list) + prestera_span_rule_del(binding, block->ingress); + return err; +} + +void prestera_mall_destroy(struct prestera_flow_block *block) +{ + struct prestera_flow_block_binding *binding; + + list_for_each_entry(binding, &block->binding_list, list) + prestera_span_rule_del(binding, block->ingress); + + block->mall.prio_min = UINT_MAX; + block->mall.prio_max = 0; + block->mall.bound = false; +} diff --git a/drivers/net/ethernet/marvell/prestera/prestera_matchall.h b/drivers/net/ethernet/marvell/prestera/prestera_matchall.h new file mode 100644 index 000000000..fed08be80 --- /dev/null +++ b/drivers/net/ethernet/marvell/prestera/prestera_matchall.h @@ -0,0 +1,17 @@ +/* SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0 */ +/* Copyright (c) 2022 Marvell International Ltd. All rights reserved. */ + +#ifndef _PRESTERA_MATCHALL_H_ +#define _PRESTERA_MATCHALL_H_ + +#include <net/pkt_cls.h> + +struct prestera_flow_block; + +int prestera_mall_replace(struct prestera_flow_block *block, + struct tc_cls_matchall_offload *f); +void prestera_mall_destroy(struct prestera_flow_block *block); +int prestera_mall_prio_get(struct prestera_flow_block *block, + u32 *prio_min, u32 *prio_max); + +#endif /* _PRESTERA_MATCHALL_H_ */ diff --git a/drivers/net/ethernet/marvell/prestera/prestera_pci.c b/drivers/net/ethernet/marvell/prestera/prestera_pci.c new file mode 100644 index 000000000..a37dbbda8 --- /dev/null +++ b/drivers/net/ethernet/marvell/prestera/prestera_pci.c @@ -0,0 +1,890 @@ +// SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0 +/* Copyright (c) 2019-2020 Marvell International Ltd. All rights reserved */ + +#include <linux/bitfield.h> +#include <linux/circ_buf.h> +#include <linux/device.h> +#include <linux/firmware.h> +#include <linux/iopoll.h> +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/pci.h> + +#include "prestera.h" + +#define PRESTERA_MSG_MAX_SIZE 1500 + +#define PRESTERA_SUPP_FW_MAJ_VER 4 +#define PRESTERA_SUPP_FW_MIN_VER 0 + +#define PRESTERA_PREV_FW_MAJ_VER 4 +#define PRESTERA_PREV_FW_MIN_VER 0 + +#define PRESTERA_FW_PATH_FMT "mrvl/prestera/mvsw_prestera_fw-v%u.%u.img" + +#define PRESTERA_FW_HDR_MAGIC 0x351D9D06 +#define PRESTERA_FW_DL_TIMEOUT_MS 50000 +#define PRESTERA_FW_BLK_SZ 1024 + +#define PRESTERA_FW_VER_MAJ_MUL 1000000 +#define PRESTERA_FW_VER_MIN_MUL 1000 + +#define PRESTERA_FW_VER_MAJ(v) ((v) / PRESTERA_FW_VER_MAJ_MUL) + +#define PRESTERA_FW_VER_MIN(v) \ + (((v) - (PRESTERA_FW_VER_MAJ(v) * PRESTERA_FW_VER_MAJ_MUL)) / \ + PRESTERA_FW_VER_MIN_MUL) + +#define PRESTERA_FW_VER_PATCH(v) \ + ((v) - (PRESTERA_FW_VER_MAJ(v) * PRESTERA_FW_VER_MAJ_MUL) - \ + (PRESTERA_FW_VER_MIN(v) * PRESTERA_FW_VER_MIN_MUL)) + +enum prestera_pci_bar_t { + PRESTERA_PCI_BAR_FW = 2, + PRESTERA_PCI_BAR_PP = 4, +}; + +struct prestera_fw_header { + __be32 magic_number; + __be32 version_value; + u8 reserved[8]; +}; + +struct prestera_ldr_regs { + u32 ldr_ready; + u32 pad1; + + u32 ldr_img_size; + u32 ldr_ctl_flags; + + u32 ldr_buf_offs; + u32 ldr_buf_size; + + u32 ldr_buf_rd; + u32 pad2; + u32 ldr_buf_wr; + + u32 ldr_status; +}; + +#define PRESTERA_LDR_REG_OFFSET(f) offsetof(struct prestera_ldr_regs, f) + +#define PRESTERA_LDR_READY_MAGIC 0xf00dfeed + +#define PRESTERA_LDR_STATUS_IMG_DL BIT(0) +#define PRESTERA_LDR_STATUS_START_FW BIT(1) +#define PRESTERA_LDR_STATUS_INVALID_IMG BIT(2) +#define PRESTERA_LDR_STATUS_NOMEM BIT(3) + +#define PRESTERA_LDR_REG_BASE(fw) ((fw)->ldr_regs) +#define PRESTERA_LDR_REG_ADDR(fw, reg) (PRESTERA_LDR_REG_BASE(fw) + (reg)) + +/* fw loader registers */ +#define PRESTERA_LDR_READY_REG PRESTERA_LDR_REG_OFFSET(ldr_ready) +#define PRESTERA_LDR_IMG_SIZE_REG PRESTERA_LDR_REG_OFFSET(ldr_img_size) +#define PRESTERA_LDR_CTL_REG PRESTERA_LDR_REG_OFFSET(ldr_ctl_flags) +#define PRESTERA_LDR_BUF_SIZE_REG PRESTERA_LDR_REG_OFFSET(ldr_buf_size) +#define PRESTERA_LDR_BUF_OFFS_REG PRESTERA_LDR_REG_OFFSET(ldr_buf_offs) +#define PRESTERA_LDR_BUF_RD_REG PRESTERA_LDR_REG_OFFSET(ldr_buf_rd) +#define PRESTERA_LDR_BUF_WR_REG PRESTERA_LDR_REG_OFFSET(ldr_buf_wr) +#define PRESTERA_LDR_STATUS_REG PRESTERA_LDR_REG_OFFSET(ldr_status) + +#define PRESTERA_LDR_CTL_DL_START BIT(0) + +#define PRESTERA_EVT_QNUM_MAX 4 + +struct prestera_fw_evtq_regs { + u32 rd_idx; + u32 pad1; + u32 wr_idx; + u32 pad2; + u32 offs; + u32 len; +}; + +#define PRESTERA_CMD_QNUM_MAX 4 + +struct prestera_fw_cmdq_regs { + u32 req_ctl; + u32 req_len; + u32 rcv_ctl; + u32 rcv_len; + u32 offs; + u32 len; +}; + +struct prestera_fw_regs { + u32 fw_ready; + u32 cmd_offs; + u32 cmd_len; + u32 cmd_qnum; + u32 evt_offs; + u32 evt_qnum; + + u32 fw_status; + u32 rx_status; + + struct prestera_fw_cmdq_regs cmdq_list[PRESTERA_EVT_QNUM_MAX]; + struct prestera_fw_evtq_regs evtq_list[PRESTERA_CMD_QNUM_MAX]; +}; + +#define PRESTERA_FW_REG_OFFSET(f) offsetof(struct prestera_fw_regs, f) + +#define PRESTERA_FW_READY_MAGIC 0xcafebabe + +/* fw registers */ +#define PRESTERA_FW_READY_REG PRESTERA_FW_REG_OFFSET(fw_ready) + +#define PRESTERA_CMD_BUF_OFFS_REG PRESTERA_FW_REG_OFFSET(cmd_offs) +#define PRESTERA_CMD_BUF_LEN_REG PRESTERA_FW_REG_OFFSET(cmd_len) +#define PRESTERA_CMD_QNUM_REG PRESTERA_FW_REG_OFFSET(cmd_qnum) +#define PRESTERA_EVT_BUF_OFFS_REG PRESTERA_FW_REG_OFFSET(evt_offs) +#define PRESTERA_EVT_QNUM_REG PRESTERA_FW_REG_OFFSET(evt_qnum) + +#define PRESTERA_CMDQ_REG_OFFSET(q, f) \ + (PRESTERA_FW_REG_OFFSET(cmdq_list) + \ + (q) * sizeof(struct prestera_fw_cmdq_regs) + \ + offsetof(struct prestera_fw_cmdq_regs, f)) + +#define PRESTERA_CMDQ_REQ_CTL_REG(q) PRESTERA_CMDQ_REG_OFFSET(q, req_ctl) +#define PRESTERA_CMDQ_REQ_LEN_REG(q) PRESTERA_CMDQ_REG_OFFSET(q, req_len) +#define PRESTERA_CMDQ_RCV_CTL_REG(q) PRESTERA_CMDQ_REG_OFFSET(q, rcv_ctl) +#define PRESTERA_CMDQ_RCV_LEN_REG(q) PRESTERA_CMDQ_REG_OFFSET(q, rcv_len) +#define PRESTERA_CMDQ_OFFS_REG(q) PRESTERA_CMDQ_REG_OFFSET(q, offs) +#define PRESTERA_CMDQ_LEN_REG(q) PRESTERA_CMDQ_REG_OFFSET(q, len) + +#define PRESTERA_FW_STATUS_REG PRESTERA_FW_REG_OFFSET(fw_status) +#define PRESTERA_RX_STATUS_REG PRESTERA_FW_REG_OFFSET(rx_status) + +/* PRESTERA_CMD_REQ_CTL_REG flags */ +#define PRESTERA_CMD_F_REQ_SENT BIT(0) +#define PRESTERA_CMD_F_REPL_RCVD BIT(1) + +/* PRESTERA_CMD_RCV_CTL_REG flags */ +#define PRESTERA_CMD_F_REPL_SENT BIT(0) + +#define PRESTERA_FW_EVT_CTL_STATUS_MASK GENMASK(1, 0) + +#define PRESTERA_FW_EVT_CTL_STATUS_ON 0 +#define PRESTERA_FW_EVT_CTL_STATUS_OFF 1 + +#define PRESTERA_EVTQ_REG_OFFSET(q, f) \ + (PRESTERA_FW_REG_OFFSET(evtq_list) + \ + (q) * sizeof(struct prestera_fw_evtq_regs) + \ + offsetof(struct prestera_fw_evtq_regs, f)) + +#define PRESTERA_EVTQ_RD_IDX_REG(q) PRESTERA_EVTQ_REG_OFFSET(q, rd_idx) +#define PRESTERA_EVTQ_WR_IDX_REG(q) PRESTERA_EVTQ_REG_OFFSET(q, wr_idx) +#define PRESTERA_EVTQ_OFFS_REG(q) PRESTERA_EVTQ_REG_OFFSET(q, offs) +#define PRESTERA_EVTQ_LEN_REG(q) PRESTERA_EVTQ_REG_OFFSET(q, len) + +#define PRESTERA_FW_REG_BASE(fw) ((fw)->dev.ctl_regs) +#define PRESTERA_FW_REG_ADDR(fw, reg) PRESTERA_FW_REG_BASE((fw)) + (reg) + +#define PRESTERA_FW_CMD_DEFAULT_WAIT_MS 30000 +#define PRESTERA_FW_READY_WAIT_MS 20000 + +struct prestera_fw_evtq { + u8 __iomem *addr; + size_t len; +}; + +struct prestera_fw_cmdq { + /* serialize access to dev->send_req */ + struct mutex cmd_mtx; + u8 __iomem *addr; + size_t len; +}; + +struct prestera_fw { + struct prestera_fw_rev rev_supp; + const struct firmware *bin; + struct workqueue_struct *wq; + struct prestera_device dev; + u8 __iomem *ldr_regs; + u8 __iomem *ldr_ring_buf; + u32 ldr_buf_len; + u32 ldr_wr_idx; + size_t cmd_mbox_len; + u8 __iomem *cmd_mbox; + struct prestera_fw_cmdq cmd_queue[PRESTERA_CMD_QNUM_MAX]; + u8 cmd_qnum; + struct prestera_fw_evtq evt_queue[PRESTERA_EVT_QNUM_MAX]; + u8 evt_qnum; + struct work_struct evt_work; + u8 __iomem *evt_buf; + u8 *evt_msg; +}; + +static int prestera_fw_load(struct prestera_fw *fw); + +static void prestera_fw_write(struct prestera_fw *fw, u32 reg, u32 val) +{ + writel(val, PRESTERA_FW_REG_ADDR(fw, reg)); +} + +static u32 prestera_fw_read(struct prestera_fw *fw, u32 reg) +{ + return readl(PRESTERA_FW_REG_ADDR(fw, reg)); +} + +static u32 prestera_fw_evtq_len(struct prestera_fw *fw, u8 qid) +{ + return fw->evt_queue[qid].len; +} + +static u32 prestera_fw_evtq_avail(struct prestera_fw *fw, u8 qid) +{ + u32 wr_idx = prestera_fw_read(fw, PRESTERA_EVTQ_WR_IDX_REG(qid)); + u32 rd_idx = prestera_fw_read(fw, PRESTERA_EVTQ_RD_IDX_REG(qid)); + + return CIRC_CNT(wr_idx, rd_idx, prestera_fw_evtq_len(fw, qid)); +} + +static void prestera_fw_evtq_rd_set(struct prestera_fw *fw, + u8 qid, u32 idx) +{ + u32 rd_idx = idx & (prestera_fw_evtq_len(fw, qid) - 1); + + prestera_fw_write(fw, PRESTERA_EVTQ_RD_IDX_REG(qid), rd_idx); +} + +static u8 __iomem *prestera_fw_evtq_buf(struct prestera_fw *fw, u8 qid) +{ + return fw->evt_queue[qid].addr; +} + +static u32 prestera_fw_evtq_read32(struct prestera_fw *fw, u8 qid) +{ + u32 rd_idx = prestera_fw_read(fw, PRESTERA_EVTQ_RD_IDX_REG(qid)); + u32 val; + + val = readl(prestera_fw_evtq_buf(fw, qid) + rd_idx); + prestera_fw_evtq_rd_set(fw, qid, rd_idx + 4); + return val; +} + +static ssize_t prestera_fw_evtq_read_buf(struct prestera_fw *fw, + u8 qid, void *buf, size_t len) +{ + u32 idx = prestera_fw_read(fw, PRESTERA_EVTQ_RD_IDX_REG(qid)); + u8 __iomem *evtq_addr = prestera_fw_evtq_buf(fw, qid); + u32 *buf32 = buf; + int i; + + for (i = 0; i < len / 4; buf32++, i++) { + *buf32 = readl_relaxed(evtq_addr + idx); + idx = (idx + 4) & (prestera_fw_evtq_len(fw, qid) - 1); + } + + prestera_fw_evtq_rd_set(fw, qid, idx); + + return i; +} + +static u8 prestera_fw_evtq_pick(struct prestera_fw *fw) +{ + int qid; + + for (qid = 0; qid < fw->evt_qnum; qid++) { + if (prestera_fw_evtq_avail(fw, qid) >= 4) + return qid; + } + + return PRESTERA_EVT_QNUM_MAX; +} + +static void prestera_fw_evt_ctl_status_set(struct prestera_fw *fw, u32 val) +{ + u32 status = prestera_fw_read(fw, PRESTERA_FW_STATUS_REG); + + u32p_replace_bits(&status, val, PRESTERA_FW_EVT_CTL_STATUS_MASK); + + prestera_fw_write(fw, PRESTERA_FW_STATUS_REG, status); +} + +static void prestera_fw_evt_work_fn(struct work_struct *work) +{ + struct prestera_fw *fw; + void *msg; + u8 qid; + + fw = container_of(work, struct prestera_fw, evt_work); + msg = fw->evt_msg; + + prestera_fw_evt_ctl_status_set(fw, PRESTERA_FW_EVT_CTL_STATUS_OFF); + + while ((qid = prestera_fw_evtq_pick(fw)) < PRESTERA_EVT_QNUM_MAX) { + u32 idx; + u32 len; + + len = prestera_fw_evtq_read32(fw, qid); + idx = prestera_fw_read(fw, PRESTERA_EVTQ_RD_IDX_REG(qid)); + + WARN_ON(prestera_fw_evtq_avail(fw, qid) < len); + + if (WARN_ON(len > PRESTERA_MSG_MAX_SIZE)) { + prestera_fw_evtq_rd_set(fw, qid, idx + len); + continue; + } + + prestera_fw_evtq_read_buf(fw, qid, msg, len); + + if (fw->dev.recv_msg) + fw->dev.recv_msg(&fw->dev, msg, len); + } + + prestera_fw_evt_ctl_status_set(fw, PRESTERA_FW_EVT_CTL_STATUS_ON); +} + +static int prestera_fw_wait_reg32(struct prestera_fw *fw, u32 reg, u32 cmp, + unsigned int waitms) +{ + u8 __iomem *addr = PRESTERA_FW_REG_ADDR(fw, reg); + u32 val; + + return readl_poll_timeout(addr, val, cmp == val, + 1 * USEC_PER_MSEC, waitms * USEC_PER_MSEC); +} + +static void prestera_fw_cmdq_lock(struct prestera_fw *fw, u8 qid) +{ + mutex_lock(&fw->cmd_queue[qid].cmd_mtx); +} + +static void prestera_fw_cmdq_unlock(struct prestera_fw *fw, u8 qid) +{ + mutex_unlock(&fw->cmd_queue[qid].cmd_mtx); +} + +static u32 prestera_fw_cmdq_len(struct prestera_fw *fw, u8 qid) +{ + return fw->cmd_queue[qid].len; +} + +static u8 __iomem *prestera_fw_cmdq_buf(struct prestera_fw *fw, u8 qid) +{ + return fw->cmd_queue[qid].addr; +} + +static int prestera_fw_cmd_send(struct prestera_fw *fw, int qid, + void *in_msg, size_t in_size, + void *out_msg, size_t out_size, + unsigned int waitms) +{ + u32 ret_size; + int err; + + if (!waitms) + waitms = PRESTERA_FW_CMD_DEFAULT_WAIT_MS; + + if (ALIGN(in_size, 4) > prestera_fw_cmdq_len(fw, qid)) + return -EMSGSIZE; + + /* wait for finish previous reply from FW */ + err = prestera_fw_wait_reg32(fw, PRESTERA_CMDQ_RCV_CTL_REG(qid), 0, 30); + if (err) { + dev_err(fw->dev.dev, "finish reply from FW is timed out\n"); + return err; + } + + prestera_fw_write(fw, PRESTERA_CMDQ_REQ_LEN_REG(qid), in_size); + + memcpy_toio(prestera_fw_cmdq_buf(fw, qid), in_msg, in_size); + + prestera_fw_write(fw, PRESTERA_CMDQ_REQ_CTL_REG(qid), + PRESTERA_CMD_F_REQ_SENT); + + /* wait for reply from FW */ + err = prestera_fw_wait_reg32(fw, PRESTERA_CMDQ_RCV_CTL_REG(qid), + PRESTERA_CMD_F_REPL_SENT, waitms); + if (err) { + dev_err(fw->dev.dev, "reply from FW is timed out\n"); + goto cmd_exit; + } + + ret_size = prestera_fw_read(fw, PRESTERA_CMDQ_RCV_LEN_REG(qid)); + if (ret_size > out_size) { + dev_err(fw->dev.dev, "ret_size (%u) > out_len(%zu)\n", + ret_size, out_size); + err = -EMSGSIZE; + goto cmd_exit; + } + + memcpy_fromio(out_msg, + prestera_fw_cmdq_buf(fw, qid) + in_size, ret_size); + +cmd_exit: + prestera_fw_write(fw, PRESTERA_CMDQ_REQ_CTL_REG(qid), + PRESTERA_CMD_F_REPL_RCVD); + return err; +} + +static int prestera_fw_send_req(struct prestera_device *dev, int qid, + void *in_msg, size_t in_size, void *out_msg, + size_t out_size, unsigned int waitms) +{ + struct prestera_fw *fw; + ssize_t ret; + + fw = container_of(dev, struct prestera_fw, dev); + + prestera_fw_cmdq_lock(fw, qid); + ret = prestera_fw_cmd_send(fw, qid, in_msg, in_size, out_msg, out_size, + waitms); + prestera_fw_cmdq_unlock(fw, qid); + + return ret; +} + +static int prestera_fw_init(struct prestera_fw *fw) +{ + u8 __iomem *base; + int err; + u8 qid; + + fw->dev.send_req = prestera_fw_send_req; + fw->ldr_regs = fw->dev.ctl_regs; + + err = prestera_fw_load(fw); + if (err) + return err; + + err = prestera_fw_wait_reg32(fw, PRESTERA_FW_READY_REG, + PRESTERA_FW_READY_MAGIC, + PRESTERA_FW_READY_WAIT_MS); + if (err) { + dev_err(fw->dev.dev, "FW failed to start\n"); + return err; + } + + base = fw->dev.ctl_regs; + + fw->cmd_mbox = base + prestera_fw_read(fw, PRESTERA_CMD_BUF_OFFS_REG); + fw->cmd_mbox_len = prestera_fw_read(fw, PRESTERA_CMD_BUF_LEN_REG); + fw->cmd_qnum = prestera_fw_read(fw, PRESTERA_CMD_QNUM_REG); + + for (qid = 0; qid < fw->cmd_qnum; qid++) { + u32 offs = prestera_fw_read(fw, PRESTERA_CMDQ_OFFS_REG(qid)); + struct prestera_fw_cmdq *cmdq = &fw->cmd_queue[qid]; + + cmdq->len = prestera_fw_read(fw, PRESTERA_CMDQ_LEN_REG(qid)); + cmdq->addr = fw->cmd_mbox + offs; + mutex_init(&cmdq->cmd_mtx); + } + + fw->evt_buf = base + prestera_fw_read(fw, PRESTERA_EVT_BUF_OFFS_REG); + fw->evt_qnum = prestera_fw_read(fw, PRESTERA_EVT_QNUM_REG); + fw->evt_msg = kmalloc(PRESTERA_MSG_MAX_SIZE, GFP_KERNEL); + if (!fw->evt_msg) + return -ENOMEM; + + for (qid = 0; qid < fw->evt_qnum; qid++) { + u32 offs = prestera_fw_read(fw, PRESTERA_EVTQ_OFFS_REG(qid)); + struct prestera_fw_evtq *evtq = &fw->evt_queue[qid]; + + evtq->len = prestera_fw_read(fw, PRESTERA_EVTQ_LEN_REG(qid)); + evtq->addr = fw->evt_buf + offs; + } + + return 0; +} + +static void prestera_fw_uninit(struct prestera_fw *fw) +{ + kfree(fw->evt_msg); +} + +static irqreturn_t prestera_pci_irq_handler(int irq, void *dev_id) +{ + struct prestera_fw *fw = dev_id; + + if (prestera_fw_read(fw, PRESTERA_RX_STATUS_REG)) { + prestera_fw_write(fw, PRESTERA_RX_STATUS_REG, 0); + + if (fw->dev.recv_pkt) + fw->dev.recv_pkt(&fw->dev); + } + + queue_work(fw->wq, &fw->evt_work); + + return IRQ_HANDLED; +} + +static void prestera_ldr_write(struct prestera_fw *fw, u32 reg, u32 val) +{ + writel(val, PRESTERA_LDR_REG_ADDR(fw, reg)); +} + +static u32 prestera_ldr_read(struct prestera_fw *fw, u32 reg) +{ + return readl(PRESTERA_LDR_REG_ADDR(fw, reg)); +} + +static int prestera_ldr_wait_reg32(struct prestera_fw *fw, + u32 reg, u32 cmp, unsigned int waitms) +{ + u8 __iomem *addr = PRESTERA_LDR_REG_ADDR(fw, reg); + u32 val; + + return readl_poll_timeout(addr, val, cmp == val, + 10 * USEC_PER_MSEC, waitms * USEC_PER_MSEC); +} + +static u32 prestera_ldr_wait_buf(struct prestera_fw *fw, size_t len) +{ + u8 __iomem *addr = PRESTERA_LDR_REG_ADDR(fw, PRESTERA_LDR_BUF_RD_REG); + u32 buf_len = fw->ldr_buf_len; + u32 wr_idx = fw->ldr_wr_idx; + u32 rd_idx; + + return readl_poll_timeout(addr, rd_idx, + CIRC_SPACE(wr_idx, rd_idx, buf_len) >= len, + 1 * USEC_PER_MSEC, 100 * USEC_PER_MSEC); +} + +static int prestera_ldr_wait_dl_finish(struct prestera_fw *fw) +{ + u8 __iomem *addr = PRESTERA_LDR_REG_ADDR(fw, PRESTERA_LDR_STATUS_REG); + unsigned long mask = ~(PRESTERA_LDR_STATUS_IMG_DL); + u32 val; + int err; + + err = readl_poll_timeout(addr, val, val & mask, 10 * USEC_PER_MSEC, + PRESTERA_FW_DL_TIMEOUT_MS * USEC_PER_MSEC); + if (err) { + dev_err(fw->dev.dev, "Timeout to load FW img [state=%d]", + prestera_ldr_read(fw, PRESTERA_LDR_STATUS_REG)); + return err; + } + + return 0; +} + +static void prestera_ldr_wr_idx_move(struct prestera_fw *fw, unsigned int n) +{ + fw->ldr_wr_idx = (fw->ldr_wr_idx + (n)) & (fw->ldr_buf_len - 1); +} + +static void prestera_ldr_wr_idx_commit(struct prestera_fw *fw) +{ + prestera_ldr_write(fw, PRESTERA_LDR_BUF_WR_REG, fw->ldr_wr_idx); +} + +static u8 __iomem *prestera_ldr_wr_ptr(struct prestera_fw *fw) +{ + return fw->ldr_ring_buf + fw->ldr_wr_idx; +} + +static int prestera_ldr_send(struct prestera_fw *fw, const u8 *buf, size_t len) +{ + int err; + int i; + + err = prestera_ldr_wait_buf(fw, len); + if (err) { + dev_err(fw->dev.dev, "failed wait for sending firmware\n"); + return err; + } + + for (i = 0; i < len; i += 4) { + writel_relaxed(*(u32 *)(buf + i), prestera_ldr_wr_ptr(fw)); + prestera_ldr_wr_idx_move(fw, 4); + } + + prestera_ldr_wr_idx_commit(fw); + return 0; +} + +static int prestera_ldr_fw_send(struct prestera_fw *fw, + const char *img, u32 fw_size) +{ + u32 status; + u32 pos; + int err; + + err = prestera_ldr_wait_reg32(fw, PRESTERA_LDR_STATUS_REG, + PRESTERA_LDR_STATUS_IMG_DL, + 5 * MSEC_PER_SEC); + if (err) { + dev_err(fw->dev.dev, "Loader is not ready to load image\n"); + return err; + } + + for (pos = 0; pos < fw_size; pos += PRESTERA_FW_BLK_SZ) { + if (pos + PRESTERA_FW_BLK_SZ > fw_size) + break; + + err = prestera_ldr_send(fw, img + pos, PRESTERA_FW_BLK_SZ); + if (err) + return err; + } + + if (pos < fw_size) { + err = prestera_ldr_send(fw, img + pos, fw_size - pos); + if (err) + return err; + } + + err = prestera_ldr_wait_dl_finish(fw); + if (err) + return err; + + status = prestera_ldr_read(fw, PRESTERA_LDR_STATUS_REG); + + switch (status) { + case PRESTERA_LDR_STATUS_INVALID_IMG: + dev_err(fw->dev.dev, "FW img has bad CRC\n"); + return -EINVAL; + case PRESTERA_LDR_STATUS_NOMEM: + dev_err(fw->dev.dev, "Loader has no enough mem\n"); + return -ENOMEM; + } + + return 0; +} + +static void prestera_fw_rev_parse(const struct prestera_fw_header *hdr, + struct prestera_fw_rev *rev) +{ + u32 version = be32_to_cpu(hdr->version_value); + + rev->maj = PRESTERA_FW_VER_MAJ(version); + rev->min = PRESTERA_FW_VER_MIN(version); + rev->sub = PRESTERA_FW_VER_PATCH(version); +} + +static int prestera_fw_rev_check(struct prestera_fw *fw) +{ + struct prestera_fw_rev *rev = &fw->dev.fw_rev; + + if (rev->maj == fw->rev_supp.maj && rev->min >= fw->rev_supp.min) + return 0; + + dev_err(fw->dev.dev, "Driver supports FW version only '%u.%u.x'", + fw->rev_supp.maj, fw->rev_supp.min); + + return -EINVAL; +} + +static int prestera_fw_hdr_parse(struct prestera_fw *fw) +{ + struct prestera_fw_rev *rev = &fw->dev.fw_rev; + struct prestera_fw_header *hdr; + u32 magic; + + hdr = (struct prestera_fw_header *)fw->bin->data; + + magic = be32_to_cpu(hdr->magic_number); + if (magic != PRESTERA_FW_HDR_MAGIC) { + dev_err(fw->dev.dev, "FW img hdr magic is invalid"); + return -EINVAL; + } + + prestera_fw_rev_parse(hdr, rev); + + dev_info(fw->dev.dev, "FW version '%u.%u.%u'\n", + rev->maj, rev->min, rev->sub); + + return prestera_fw_rev_check(fw); +} + +static int prestera_fw_get(struct prestera_fw *fw) +{ + int ver_maj = PRESTERA_SUPP_FW_MAJ_VER; + int ver_min = PRESTERA_SUPP_FW_MIN_VER; + char fw_path[128]; + int err; + +pick_fw_ver: + snprintf(fw_path, sizeof(fw_path), PRESTERA_FW_PATH_FMT, + ver_maj, ver_min); + + err = request_firmware_direct(&fw->bin, fw_path, fw->dev.dev); + if (err) { + if (ver_maj != PRESTERA_PREV_FW_MAJ_VER || + ver_min != PRESTERA_PREV_FW_MIN_VER) { + ver_maj = PRESTERA_PREV_FW_MAJ_VER; + ver_min = PRESTERA_PREV_FW_MIN_VER; + + dev_warn(fw->dev.dev, + "missing latest %s firmware, fall-back to previous %u.%u version\n", + fw_path, ver_maj, ver_min); + + goto pick_fw_ver; + } else { + dev_err(fw->dev.dev, "failed to request previous firmware: %s\n", + fw_path); + return err; + } + } + + dev_info(fw->dev.dev, "Loading %s ...", fw_path); + + fw->rev_supp.maj = ver_maj; + fw->rev_supp.min = ver_min; + fw->rev_supp.sub = 0; + + return 0; +} + +static void prestera_fw_put(struct prestera_fw *fw) +{ + release_firmware(fw->bin); +} + +static int prestera_fw_load(struct prestera_fw *fw) +{ + size_t hlen = sizeof(struct prestera_fw_header); + int err; + + err = prestera_ldr_wait_reg32(fw, PRESTERA_LDR_READY_REG, + PRESTERA_LDR_READY_MAGIC, + 5 * MSEC_PER_SEC); + if (err) { + dev_err(fw->dev.dev, "waiting for FW loader is timed out"); + return err; + } + + fw->ldr_ring_buf = fw->ldr_regs + + prestera_ldr_read(fw, PRESTERA_LDR_BUF_OFFS_REG); + + fw->ldr_buf_len = + prestera_ldr_read(fw, PRESTERA_LDR_BUF_SIZE_REG); + + fw->ldr_wr_idx = 0; + + err = prestera_fw_get(fw); + if (err) + return err; + + err = prestera_fw_hdr_parse(fw); + if (err) { + dev_err(fw->dev.dev, "FW image header is invalid\n"); + goto out_release; + } + + prestera_ldr_write(fw, PRESTERA_LDR_IMG_SIZE_REG, fw->bin->size - hlen); + prestera_ldr_write(fw, PRESTERA_LDR_CTL_REG, PRESTERA_LDR_CTL_DL_START); + + err = prestera_ldr_fw_send(fw, fw->bin->data + hlen, + fw->bin->size - hlen); + +out_release: + prestera_fw_put(fw); + return err; +} + +static int prestera_pci_probe(struct pci_dev *pdev, + const struct pci_device_id *id) +{ + const char *driver_name = dev_driver_string(&pdev->dev); + struct prestera_fw *fw; + int err; + + err = pcim_enable_device(pdev); + if (err) + return err; + + err = pcim_iomap_regions(pdev, BIT(PRESTERA_PCI_BAR_FW) | + BIT(PRESTERA_PCI_BAR_PP), + pci_name(pdev)); + if (err) + return err; + + err = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(30)); + if (err) { + dev_err(&pdev->dev, "fail to set DMA mask\n"); + goto err_dma_mask; + } + + pci_set_master(pdev); + + fw = devm_kzalloc(&pdev->dev, sizeof(*fw), GFP_KERNEL); + if (!fw) { + err = -ENOMEM; + goto err_pci_dev_alloc; + } + + fw->dev.ctl_regs = pcim_iomap_table(pdev)[PRESTERA_PCI_BAR_FW]; + fw->dev.pp_regs = pcim_iomap_table(pdev)[PRESTERA_PCI_BAR_PP]; + fw->dev.dev = &pdev->dev; + + pci_set_drvdata(pdev, fw); + + err = prestera_fw_init(fw); + if (err) + goto err_prestera_fw_init; + + dev_info(fw->dev.dev, "Prestera FW is ready\n"); + + fw->wq = alloc_workqueue("prestera_fw_wq", WQ_HIGHPRI, 1); + if (!fw->wq) { + err = -ENOMEM; + goto err_wq_alloc; + } + + INIT_WORK(&fw->evt_work, prestera_fw_evt_work_fn); + + err = pci_alloc_irq_vectors(pdev, 1, 1, PCI_IRQ_MSI); + if (err < 0) { + dev_err(&pdev->dev, "MSI IRQ init failed\n"); + goto err_irq_alloc; + } + + err = request_irq(pci_irq_vector(pdev, 0), prestera_pci_irq_handler, + 0, driver_name, fw); + if (err) { + dev_err(&pdev->dev, "fail to request IRQ\n"); + goto err_request_irq; + } + + err = prestera_device_register(&fw->dev); + if (err) + goto err_prestera_dev_register; + + return 0; + +err_prestera_dev_register: + free_irq(pci_irq_vector(pdev, 0), fw); +err_request_irq: + pci_free_irq_vectors(pdev); +err_irq_alloc: + destroy_workqueue(fw->wq); +err_wq_alloc: + prestera_fw_uninit(fw); +err_prestera_fw_init: +err_pci_dev_alloc: +err_dma_mask: + return err; +} + +static void prestera_pci_remove(struct pci_dev *pdev) +{ + struct prestera_fw *fw = pci_get_drvdata(pdev); + + prestera_device_unregister(&fw->dev); + free_irq(pci_irq_vector(pdev, 0), fw); + pci_free_irq_vectors(pdev); + destroy_workqueue(fw->wq); + prestera_fw_uninit(fw); +} + +static const struct pci_device_id prestera_pci_devices[] = { + { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0xC804) }, + { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0xC80C) }, + { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0xCC1E) }, + { } +}; +MODULE_DEVICE_TABLE(pci, prestera_pci_devices); + +static struct pci_driver prestera_pci_driver = { + .name = "Prestera DX", + .id_table = prestera_pci_devices, + .probe = prestera_pci_probe, + .remove = prestera_pci_remove, +}; +module_pci_driver(prestera_pci_driver); + +MODULE_LICENSE("Dual BSD/GPL"); +MODULE_DESCRIPTION("Marvell Prestera switch PCI interface"); diff --git a/drivers/net/ethernet/marvell/prestera/prestera_router.c b/drivers/net/ethernet/marvell/prestera/prestera_router.c new file mode 100644 index 000000000..de317179a --- /dev/null +++ b/drivers/net/ethernet/marvell/prestera/prestera_router.c @@ -0,0 +1,1645 @@ +// SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0 +/* Copyright (c) 2019-2021 Marvell International Ltd. All rights reserved */ + +#include <linux/kernel.h> +#include <linux/types.h> +#include <linux/inetdevice.h> +#include <net/inet_dscp.h> +#include <net/switchdev.h> +#include <linux/rhashtable.h> +#include <net/nexthop.h> +#include <net/arp.h> +#include <linux/if_vlan.h> +#include <linux/if_macvlan.h> +#include <net/netevent.h> + +#include "prestera.h" +#include "prestera_router_hw.h" + +#define PRESTERA_IMPLICITY_RESOLVE_DEAD_NEIGH +#define PRESTERA_NH_PROBE_INTERVAL 5000 /* ms */ + +struct prestera_kern_neigh_cache_key { + struct prestera_ip_addr addr; + struct net_device *dev; +}; + +struct prestera_kern_neigh_cache { + struct prestera_kern_neigh_cache_key key; + struct rhash_head ht_node; + struct list_head kern_fib_cache_list; + /* Hold prepared nh_neigh info if is in_kernel */ + struct prestera_neigh_info nh_neigh_info; + /* Indicate if neighbour is reachable by direct route */ + bool reachable; + /* Lock cache if neigh is present in kernel */ + bool in_kernel; +}; + +struct prestera_kern_fib_cache_key { + struct prestera_ip_addr addr; + u32 prefix_len; + u32 kern_tb_id; /* tb_id from kernel (not fixed) */ +}; + +/* Subscribing on neighbours in kernel */ +struct prestera_kern_fib_cache { + struct prestera_kern_fib_cache_key key; + struct { + struct prestera_fib_key fib_key; + enum prestera_fib_type fib_type; + struct prestera_nexthop_group_key nh_grp_key; + } lpm_info; /* hold prepared lpm info */ + /* Indicate if route is not overlapped by another table */ + struct rhash_head ht_node; /* node of prestera_router */ + struct prestera_kern_neigh_cache_head { + struct prestera_kern_fib_cache *this; + struct list_head head; + struct prestera_kern_neigh_cache *n_cache; + } kern_neigh_cache_head[PRESTERA_NHGR_SIZE_MAX]; + union { + struct fib_notifier_info info; /* point to any of 4/6 */ + struct fib_entry_notifier_info fen4_info; + }; + bool reachable; +}; + +static const struct rhashtable_params __prestera_kern_neigh_cache_ht_params = { + .key_offset = offsetof(struct prestera_kern_neigh_cache, key), + .head_offset = offsetof(struct prestera_kern_neigh_cache, ht_node), + .key_len = sizeof(struct prestera_kern_neigh_cache_key), + .automatic_shrinking = true, +}; + +static const struct rhashtable_params __prestera_kern_fib_cache_ht_params = { + .key_offset = offsetof(struct prestera_kern_fib_cache, key), + .head_offset = offsetof(struct prestera_kern_fib_cache, ht_node), + .key_len = sizeof(struct prestera_kern_fib_cache_key), + .automatic_shrinking = true, +}; + +/* This util to be used, to convert kernel rules for default vr in hw_vr */ +static u32 prestera_fix_tb_id(u32 tb_id) +{ + if (tb_id == RT_TABLE_UNSPEC || + tb_id == RT_TABLE_LOCAL || + tb_id == RT_TABLE_DEFAULT) + tb_id = RT_TABLE_MAIN; + + return tb_id; +} + +static void +prestera_util_fen_info2fib_cache_key(struct fib_notifier_info *info, + struct prestera_kern_fib_cache_key *key) +{ + struct fib_entry_notifier_info *fen_info = + container_of(info, struct fib_entry_notifier_info, info); + + memset(key, 0, sizeof(*key)); + key->addr.v = PRESTERA_IPV4; + key->addr.u.ipv4 = cpu_to_be32(fen_info->dst); + key->prefix_len = fen_info->dst_len; + key->kern_tb_id = fen_info->tb_id; +} + +static int prestera_util_nhc2nc_key(struct prestera_switch *sw, + struct fib_nh_common *nhc, + struct prestera_kern_neigh_cache_key *nk) +{ + memset(nk, 0, sizeof(*nk)); + if (nhc->nhc_gw_family == AF_INET) { + nk->addr.v = PRESTERA_IPV4; + nk->addr.u.ipv4 = nhc->nhc_gw.ipv4; + } else { + nk->addr.v = PRESTERA_IPV6; + nk->addr.u.ipv6 = nhc->nhc_gw.ipv6; + } + + nk->dev = nhc->nhc_dev; + return 0; +} + +static void +prestera_util_nc_key2nh_key(struct prestera_kern_neigh_cache_key *ck, + struct prestera_nh_neigh_key *nk) +{ + memset(nk, 0, sizeof(*nk)); + nk->addr = ck->addr; + nk->rif = (void *)ck->dev; +} + +static bool +prestera_util_nhc_eq_n_cache_key(struct prestera_switch *sw, + struct fib_nh_common *nhc, + struct prestera_kern_neigh_cache_key *nk) +{ + struct prestera_kern_neigh_cache_key tk; + int err; + + err = prestera_util_nhc2nc_key(sw, nhc, &tk); + if (err) + return false; + + if (memcmp(&tk, nk, sizeof(tk))) + return false; + + return true; +} + +static int +prestera_util_neigh2nc_key(struct prestera_switch *sw, struct neighbour *n, + struct prestera_kern_neigh_cache_key *key) +{ + memset(key, 0, sizeof(*key)); + if (n->tbl->family == AF_INET) { + key->addr.v = PRESTERA_IPV4; + key->addr.u.ipv4 = *(__be32 *)n->primary_key; + } else { + return -ENOENT; + } + + key->dev = n->dev; + + return 0; +} + +static bool __prestera_fi_is_direct(struct fib_info *fi) +{ + struct fib_nh_common *fib_nhc; + + if (fib_info_num_path(fi) == 1) { + fib_nhc = fib_info_nhc(fi, 0); + if (fib_nhc->nhc_gw_family == AF_UNSPEC) + return true; + } + + return false; +} + +static bool prestera_fi_is_direct(struct fib_info *fi) +{ + if (fi->fib_type != RTN_UNICAST) + return false; + + return __prestera_fi_is_direct(fi); +} + +static bool prestera_fi_is_nh(struct fib_info *fi) +{ + if (fi->fib_type != RTN_UNICAST) + return false; + + return !__prestera_fi_is_direct(fi); +} + +static bool __prestera_fi6_is_direct(struct fib6_info *fi) +{ + if (!fi->fib6_nh->nh_common.nhc_gw_family) + return true; + + return false; +} + +static bool prestera_fi6_is_direct(struct fib6_info *fi) +{ + if (fi->fib6_type != RTN_UNICAST) + return false; + + return __prestera_fi6_is_direct(fi); +} + +static bool prestera_fi6_is_nh(struct fib6_info *fi) +{ + if (fi->fib6_type != RTN_UNICAST) + return false; + + return !__prestera_fi6_is_direct(fi); +} + +static bool prestera_fib_info_is_direct(struct fib_notifier_info *info) +{ + struct fib6_entry_notifier_info *fen6_info = + container_of(info, struct fib6_entry_notifier_info, info); + struct fib_entry_notifier_info *fen_info = + container_of(info, struct fib_entry_notifier_info, info); + + if (info->family == AF_INET) + return prestera_fi_is_direct(fen_info->fi); + else + return prestera_fi6_is_direct(fen6_info->rt); +} + +static bool prestera_fib_info_is_nh(struct fib_notifier_info *info) +{ + struct fib6_entry_notifier_info *fen6_info = + container_of(info, struct fib6_entry_notifier_info, info); + struct fib_entry_notifier_info *fen_info = + container_of(info, struct fib_entry_notifier_info, info); + + if (info->family == AF_INET) + return prestera_fi_is_nh(fen_info->fi); + else + return prestera_fi6_is_nh(fen6_info->rt); +} + +/* must be called with rcu_read_lock() */ +static int prestera_util_kern_get_route(struct fib_result *res, u32 tb_id, + __be32 *addr) +{ + struct flowi4 fl4; + + /* TODO: walkthrough appropriate tables in kernel + * to know if the same prefix exists in several tables + */ + memset(&fl4, 0, sizeof(fl4)); + fl4.daddr = *addr; + return fib_lookup(&init_net, &fl4, res, 0 /* FIB_LOOKUP_NOREF */); +} + +static bool +__prestera_util_kern_n_is_reachable_v4(u32 tb_id, __be32 *addr, + struct net_device *dev) +{ + struct fib_nh_common *fib_nhc; + struct fib_result res; + bool reachable; + + reachable = false; + + if (!prestera_util_kern_get_route(&res, tb_id, addr)) + if (prestera_fi_is_direct(res.fi)) { + fib_nhc = fib_info_nhc(res.fi, 0); + if (dev == fib_nhc->nhc_dev) + reachable = true; + } + + return reachable; +} + +/* Check if neigh route is reachable */ +static bool +prestera_util_kern_n_is_reachable(u32 tb_id, + struct prestera_ip_addr *addr, + struct net_device *dev) +{ + if (addr->v == PRESTERA_IPV4) + return __prestera_util_kern_n_is_reachable_v4(tb_id, + &addr->u.ipv4, + dev); + else + return false; +} + +static void prestera_util_kern_set_neigh_offload(struct neighbour *n, + bool offloaded) +{ + if (offloaded) + n->flags |= NTF_OFFLOADED; + else + n->flags &= ~NTF_OFFLOADED; +} + +static void +prestera_util_kern_set_nh_offload(struct fib_nh_common *nhc, bool offloaded, bool trap) +{ + if (offloaded) + nhc->nhc_flags |= RTNH_F_OFFLOAD; + else + nhc->nhc_flags &= ~RTNH_F_OFFLOAD; + + if (trap) + nhc->nhc_flags |= RTNH_F_TRAP; + else + nhc->nhc_flags &= ~RTNH_F_TRAP; +} + +static struct fib_nh_common * +prestera_kern_fib_info_nhc(struct fib_notifier_info *info, int n) +{ + struct fib6_entry_notifier_info *fen6_info; + struct fib_entry_notifier_info *fen4_info; + struct fib6_info *iter; + + if (info->family == AF_INET) { + fen4_info = container_of(info, struct fib_entry_notifier_info, + info); + return fib_info_nhc(fen4_info->fi, n); + } else if (info->family == AF_INET6) { + fen6_info = container_of(info, struct fib6_entry_notifier_info, + info); + if (!n) + return &fen6_info->rt->fib6_nh->nh_common; + + list_for_each_entry(iter, &fen6_info->rt->fib6_siblings, + fib6_siblings) { + if (!--n) + return &iter->fib6_nh->nh_common; + } + } + + /* if family is incorrect - than upper functions has BUG */ + /* if doesn't find requested index - there is alsi bug, because + * valid index must be produced by nhs, which checks list length + */ + WARN(1, "Invalid parameters passed to %s n=%d i=%p", + __func__, n, info); + return NULL; +} + +static int prestera_kern_fib_info_nhs(struct fib_notifier_info *info) +{ + struct fib6_entry_notifier_info *fen6_info; + struct fib_entry_notifier_info *fen4_info; + + if (info->family == AF_INET) { + fen4_info = container_of(info, struct fib_entry_notifier_info, + info); + return fib_info_num_path(fen4_info->fi); + } else if (info->family == AF_INET6) { + fen6_info = container_of(info, struct fib6_entry_notifier_info, + info); + return fen6_info->rt->fib6_nsiblings + 1; + } + + return 0; +} + +static unsigned char +prestera_kern_fib_info_type(struct fib_notifier_info *info) +{ + struct fib6_entry_notifier_info *fen6_info; + struct fib_entry_notifier_info *fen4_info; + + if (info->family == AF_INET) { + fen4_info = container_of(info, struct fib_entry_notifier_info, + info); + return fen4_info->fi->fib_type; + } else if (info->family == AF_INET6) { + fen6_info = container_of(info, struct fib6_entry_notifier_info, + info); + /* TODO: ECMP in ipv6 is several routes. + * Every route has single nh. + */ + return fen6_info->rt->fib6_type; + } + + return RTN_UNSPEC; +} + +/* Decided, that uc_nh route with key==nh is obviously neighbour route */ +static bool +prestera_fib_node_util_is_neighbour(struct prestera_fib_node *fib_node) +{ + if (fib_node->info.type != PRESTERA_FIB_TYPE_UC_NH) + return false; + + if (fib_node->info.nh_grp->nh_neigh_head[1].neigh) + return false; + + if (!fib_node->info.nh_grp->nh_neigh_head[0].neigh) + return false; + + if (memcmp(&fib_node->info.nh_grp->nh_neigh_head[0].neigh->key.addr, + &fib_node->key.addr, sizeof(struct prestera_ip_addr))) + return false; + + return true; +} + +static int prestera_dev_if_type(const struct net_device *dev) +{ + struct macvlan_dev *vlan; + + if (is_vlan_dev(dev) && + netif_is_bridge_master(vlan_dev_real_dev(dev))) { + return PRESTERA_IF_VID_E; + } else if (netif_is_bridge_master(dev)) { + return PRESTERA_IF_VID_E; + } else if (netif_is_lag_master(dev)) { + return PRESTERA_IF_LAG_E; + } else if (netif_is_macvlan(dev)) { + vlan = netdev_priv(dev); + return prestera_dev_if_type(vlan->lowerdev); + } else { + return PRESTERA_IF_PORT_E; + } +} + +static int +prestera_neigh_iface_init(struct prestera_switch *sw, + struct prestera_iface *iface, + struct neighbour *n) +{ + struct prestera_port *port; + + iface->vlan_id = 0; /* TODO: vlan egress */ + iface->type = prestera_dev_if_type(n->dev); + if (iface->type != PRESTERA_IF_PORT_E) + return -EINVAL; + + if (!prestera_netdev_check(n->dev)) + return -EINVAL; + + port = netdev_priv(n->dev); + iface->dev_port.hw_dev_num = port->dev_id; + iface->dev_port.port_num = port->hw_id; + + return 0; +} + +static struct prestera_kern_neigh_cache * +prestera_kern_neigh_cache_find(struct prestera_switch *sw, + struct prestera_kern_neigh_cache_key *key) +{ + struct prestera_kern_neigh_cache *n_cache; + + n_cache = + rhashtable_lookup_fast(&sw->router->kern_neigh_cache_ht, key, + __prestera_kern_neigh_cache_ht_params); + return n_cache; +} + +static void +__prestera_kern_neigh_cache_destruct(struct prestera_switch *sw, + struct prestera_kern_neigh_cache *n_cache) +{ + dev_put(n_cache->key.dev); +} + +static void +__prestera_kern_neigh_cache_destroy(struct prestera_switch *sw, + struct prestera_kern_neigh_cache *n_cache) +{ + rhashtable_remove_fast(&sw->router->kern_neigh_cache_ht, + &n_cache->ht_node, + __prestera_kern_neigh_cache_ht_params); + __prestera_kern_neigh_cache_destruct(sw, n_cache); + kfree(n_cache); +} + +static struct prestera_kern_neigh_cache * +__prestera_kern_neigh_cache_create(struct prestera_switch *sw, + struct prestera_kern_neigh_cache_key *key) +{ + struct prestera_kern_neigh_cache *n_cache; + int err; + + n_cache = kzalloc(sizeof(*n_cache), GFP_KERNEL); + if (!n_cache) + goto err_kzalloc; + + memcpy(&n_cache->key, key, sizeof(*key)); + dev_hold(n_cache->key.dev); + + INIT_LIST_HEAD(&n_cache->kern_fib_cache_list); + err = rhashtable_insert_fast(&sw->router->kern_neigh_cache_ht, + &n_cache->ht_node, + __prestera_kern_neigh_cache_ht_params); + if (err) + goto err_ht_insert; + + return n_cache; + +err_ht_insert: + dev_put(n_cache->key.dev); + kfree(n_cache); +err_kzalloc: + return NULL; +} + +static struct prestera_kern_neigh_cache * +prestera_kern_neigh_cache_get(struct prestera_switch *sw, + struct prestera_kern_neigh_cache_key *key) +{ + struct prestera_kern_neigh_cache *n_cache; + + n_cache = prestera_kern_neigh_cache_find(sw, key); + if (!n_cache) + n_cache = __prestera_kern_neigh_cache_create(sw, key); + + return n_cache; +} + +static struct prestera_kern_neigh_cache * +prestera_kern_neigh_cache_put(struct prestera_switch *sw, + struct prestera_kern_neigh_cache *n_cache) +{ + if (!n_cache->in_kernel && + list_empty(&n_cache->kern_fib_cache_list)) { + __prestera_kern_neigh_cache_destroy(sw, n_cache); + return NULL; + } + + return n_cache; +} + +static struct prestera_kern_fib_cache * +prestera_kern_fib_cache_find(struct prestera_switch *sw, + struct prestera_kern_fib_cache_key *key) +{ + struct prestera_kern_fib_cache *fib_cache; + + fib_cache = + rhashtable_lookup_fast(&sw->router->kern_fib_cache_ht, key, + __prestera_kern_fib_cache_ht_params); + return fib_cache; +} + +static void +__prestera_kern_fib_cache_destruct(struct prestera_switch *sw, + struct prestera_kern_fib_cache *fib_cache) +{ + struct prestera_kern_neigh_cache *n_cache; + int i; + + for (i = 0; i < PRESTERA_NHGR_SIZE_MAX; i++) { + n_cache = fib_cache->kern_neigh_cache_head[i].n_cache; + if (n_cache) { + list_del(&fib_cache->kern_neigh_cache_head[i].head); + prestera_kern_neigh_cache_put(sw, n_cache); + } + } + + fib_info_put(fib_cache->fen4_info.fi); +} + +static void +prestera_kern_fib_cache_destroy(struct prestera_switch *sw, + struct prestera_kern_fib_cache *fib_cache) +{ + rhashtable_remove_fast(&sw->router->kern_fib_cache_ht, + &fib_cache->ht_node, + __prestera_kern_fib_cache_ht_params); + __prestera_kern_fib_cache_destruct(sw, fib_cache); + kfree(fib_cache); +} + +static int +__prestera_kern_fib_cache_create_nhs(struct prestera_switch *sw, + struct prestera_kern_fib_cache *fc) +{ + struct prestera_kern_neigh_cache_key nc_key; + struct prestera_kern_neigh_cache *n_cache; + struct fib_nh_common *nhc; + int i, nhs, err; + + if (!prestera_fib_info_is_nh(&fc->info)) + return 0; + + nhs = prestera_kern_fib_info_nhs(&fc->info); + if (nhs > PRESTERA_NHGR_SIZE_MAX) + return 0; + + for (i = 0; i < nhs; i++) { + nhc = prestera_kern_fib_info_nhc(&fc->fen4_info.info, i); + err = prestera_util_nhc2nc_key(sw, nhc, &nc_key); + if (err) + return 0; + + n_cache = prestera_kern_neigh_cache_get(sw, &nc_key); + if (!n_cache) + return 0; + + fc->kern_neigh_cache_head[i].this = fc; + fc->kern_neigh_cache_head[i].n_cache = n_cache; + list_add(&fc->kern_neigh_cache_head[i].head, + &n_cache->kern_fib_cache_list); + } + + return 0; +} + +/* Operations on fi (offload, etc) must be wrapped in utils. + * This function just create storage. + */ +static struct prestera_kern_fib_cache * +prestera_kern_fib_cache_create(struct prestera_switch *sw, + struct prestera_kern_fib_cache_key *key, + struct fib_notifier_info *info) +{ + struct fib_entry_notifier_info *fen_info = + container_of(info, struct fib_entry_notifier_info, info); + struct prestera_kern_fib_cache *fib_cache; + int err; + + fib_cache = kzalloc(sizeof(*fib_cache), GFP_KERNEL); + if (!fib_cache) + goto err_kzalloc; + + memcpy(&fib_cache->key, key, sizeof(*key)); + fib_info_hold(fen_info->fi); + memcpy(&fib_cache->fen4_info, fen_info, sizeof(*fen_info)); + + err = rhashtable_insert_fast(&sw->router->kern_fib_cache_ht, + &fib_cache->ht_node, + __prestera_kern_fib_cache_ht_params); + if (err) + goto err_ht_insert; + + /* Handle nexthops */ + err = __prestera_kern_fib_cache_create_nhs(sw, fib_cache); + if (err) + goto out; /* Not critical */ + +out: + return fib_cache; + +err_ht_insert: + fib_info_put(fen_info->fi); + kfree(fib_cache); +err_kzalloc: + return NULL; +} + +static void +__prestera_k_arb_fib_nh_offload_set(struct prestera_switch *sw, + struct prestera_kern_fib_cache *fibc, + struct prestera_kern_neigh_cache *nc, + bool offloaded, bool trap) +{ + struct fib_nh_common *nhc; + int i, nhs; + + nhs = prestera_kern_fib_info_nhs(&fibc->info); + for (i = 0; i < nhs; i++) { + nhc = prestera_kern_fib_info_nhc(&fibc->info, i); + if (!nc) { + prestera_util_kern_set_nh_offload(nhc, offloaded, trap); + continue; + } + + if (prestera_util_nhc_eq_n_cache_key(sw, nhc, &nc->key)) { + prestera_util_kern_set_nh_offload(nhc, offloaded, trap); + break; + } + } +} + +static void +__prestera_k_arb_n_offload_set(struct prestera_switch *sw, + struct prestera_kern_neigh_cache *nc, + bool offloaded) +{ + struct neighbour *n; + + n = neigh_lookup(&arp_tbl, &nc->key.addr.u.ipv4, + nc->key.dev); + if (!n) + return; + + prestera_util_kern_set_neigh_offload(n, offloaded); + neigh_release(n); +} + +static void +__prestera_k_arb_fib_lpm_offload_set(struct prestera_switch *sw, + struct prestera_kern_fib_cache *fc, + bool fail, bool offload, bool trap) +{ + struct fib_rt_info fri; + + switch (fc->key.addr.v) { + case PRESTERA_IPV4: + fri.fi = fc->fen4_info.fi; + fri.tb_id = fc->key.kern_tb_id; + fri.dst = fc->key.addr.u.ipv4; + fri.dst_len = fc->key.prefix_len; + fri.dscp = fc->fen4_info.dscp; + fri.type = fc->fen4_info.type; + /* flags begin */ + fri.offload = offload; + fri.trap = trap; + fri.offload_failed = fail; + /* flags end */ + fib_alias_hw_flags_set(&init_net, &fri); + return; + case PRESTERA_IPV6: + /* TODO */ + return; + } +} + +static void +__prestera_k_arb_n_lpm_set(struct prestera_switch *sw, + struct prestera_kern_neigh_cache *n_cache, + bool enabled) +{ + struct prestera_nexthop_group_key nh_grp_key; + struct prestera_kern_fib_cache_key fc_key; + struct prestera_kern_fib_cache *fib_cache; + struct prestera_fib_node *fib_node; + struct prestera_fib_key fib_key; + + /* Exception for fc with prefix 32: LPM entry is already used by fib */ + memset(&fc_key, 0, sizeof(fc_key)); + fc_key.addr = n_cache->key.addr; + fc_key.prefix_len = PRESTERA_IP_ADDR_PLEN(n_cache->key.addr.v); + /* But better to use tb_id of route, which pointed to this neighbour. */ + /* We take it from rif, because rif inconsistent. + * Must be separated in_rif and out_rif. + * Also note: for each fib pointed to this neigh should be separated + * neigh lpm entry (for each ingress vr) + */ + fc_key.kern_tb_id = l3mdev_fib_table(n_cache->key.dev); + fib_cache = prestera_kern_fib_cache_find(sw, &fc_key); + memset(&fib_key, 0, sizeof(fib_key)); + fib_key.addr = n_cache->key.addr; + fib_key.prefix_len = PRESTERA_IP_ADDR_PLEN(n_cache->key.addr.v); + fib_key.tb_id = prestera_fix_tb_id(fc_key.kern_tb_id); + fib_node = prestera_fib_node_find(sw, &fib_key); + if (!fib_cache || !fib_cache->reachable) { + if (!enabled && fib_node) { + if (prestera_fib_node_util_is_neighbour(fib_node)) + prestera_fib_node_destroy(sw, fib_node); + return; + } + } + + if (enabled && !fib_node) { + memset(&nh_grp_key, 0, sizeof(nh_grp_key)); + prestera_util_nc_key2nh_key(&n_cache->key, + &nh_grp_key.neigh[0]); + fib_node = prestera_fib_node_create(sw, &fib_key, + PRESTERA_FIB_TYPE_UC_NH, + &nh_grp_key); + if (!fib_node) + pr_err("%s failed ip=%pI4n", "prestera_fib_node_create", + &fib_key.addr.u.ipv4); + return; + } +} + +static void +__prestera_k_arb_nc_kern_fib_fetch(struct prestera_switch *sw, + struct prestera_kern_neigh_cache *nc) +{ + if (prestera_util_kern_n_is_reachable(l3mdev_fib_table(nc->key.dev), + &nc->key.addr, nc->key.dev)) + nc->reachable = true; + else + nc->reachable = false; +} + +/* Kernel neighbour -> neigh_cache info */ +static void +__prestera_k_arb_nc_kern_n_fetch(struct prestera_switch *sw, + struct prestera_kern_neigh_cache *nc) +{ + struct neighbour *n; + int err; + + memset(&nc->nh_neigh_info, 0, sizeof(nc->nh_neigh_info)); + n = neigh_lookup(&arp_tbl, &nc->key.addr.u.ipv4, nc->key.dev); + if (!n) + goto out; + + read_lock_bh(&n->lock); + if (n->nud_state & NUD_VALID && !n->dead) { + err = prestera_neigh_iface_init(sw, &nc->nh_neigh_info.iface, + n); + if (err) + goto n_read_out; + + memcpy(&nc->nh_neigh_info.ha[0], &n->ha[0], ETH_ALEN); + nc->nh_neigh_info.connected = true; + } +n_read_out: + read_unlock_bh(&n->lock); +out: + nc->in_kernel = nc->nh_neigh_info.connected; + if (n) + neigh_release(n); +} + +/* neigh_cache info -> lpm update */ +static void +__prestera_k_arb_nc_apply(struct prestera_switch *sw, + struct prestera_kern_neigh_cache *nc) +{ + struct prestera_kern_neigh_cache_head *nhead; + struct prestera_nh_neigh_key nh_key; + struct prestera_nh_neigh *nh_neigh; + int err; + + __prestera_k_arb_n_lpm_set(sw, nc, nc->reachable && nc->in_kernel); + __prestera_k_arb_n_offload_set(sw, nc, nc->reachable && nc->in_kernel); + + prestera_util_nc_key2nh_key(&nc->key, &nh_key); + nh_neigh = prestera_nh_neigh_find(sw, &nh_key); + if (!nh_neigh) + goto out; + + /* Do hw update only if something changed to prevent nh flap */ + if (memcmp(&nc->nh_neigh_info, &nh_neigh->info, + sizeof(nh_neigh->info))) { + memcpy(&nh_neigh->info, &nc->nh_neigh_info, + sizeof(nh_neigh->info)); + err = prestera_nh_neigh_set(sw, nh_neigh); + if (err) { + pr_err("%s failed with err=%d ip=%pI4n mac=%pM", + "prestera_nh_neigh_set", err, + &nh_neigh->key.addr.u.ipv4, + &nh_neigh->info.ha[0]); + goto out; + } + } + +out: + list_for_each_entry(nhead, &nc->kern_fib_cache_list, head) { + __prestera_k_arb_fib_nh_offload_set(sw, nhead->this, nc, + nc->in_kernel, + !nc->in_kernel); + } +} + +static int +__prestera_pr_k_arb_fc_lpm_info_calc(struct prestera_switch *sw, + struct prestera_kern_fib_cache *fc) +{ + struct fib_nh_common *nhc; + int nh_cnt; + + memset(&fc->lpm_info, 0, sizeof(fc->lpm_info)); + + switch (prestera_kern_fib_info_type(&fc->info)) { + case RTN_UNICAST: + if (prestera_fib_info_is_direct(&fc->info) && + fc->key.prefix_len == + PRESTERA_IP_ADDR_PLEN(fc->key.addr.v)) { + /* This is special case. + * When prefix is 32. Than we will have conflict in lpm + * for direct route - once TRAP added, there is no + * place for neighbour entry. So represent direct route + * with prefix 32, as NH. So neighbour will be resolved + * as nexthop of this route. + */ + nhc = prestera_kern_fib_info_nhc(&fc->info, 0); + fc->lpm_info.fib_type = PRESTERA_FIB_TYPE_UC_NH; + fc->lpm_info.nh_grp_key.neigh[0].addr = + fc->key.addr; + fc->lpm_info.nh_grp_key.neigh[0].rif = + nhc->nhc_dev; + + break; + } + + /* We can also get nh_grp_key from fi. This will be correct to + * because cache not always represent, what actually written to + * lpm. But we use nh cache, as well for now (for this case). + */ + for (nh_cnt = 0; nh_cnt < PRESTERA_NHGR_SIZE_MAX; nh_cnt++) { + if (!fc->kern_neigh_cache_head[nh_cnt].n_cache) + break; + + fc->lpm_info.nh_grp_key.neigh[nh_cnt].addr = + fc->kern_neigh_cache_head[nh_cnt].n_cache->key.addr; + fc->lpm_info.nh_grp_key.neigh[nh_cnt].rif = + fc->kern_neigh_cache_head[nh_cnt].n_cache->key.dev; + } + + fc->lpm_info.fib_type = nh_cnt ? + PRESTERA_FIB_TYPE_UC_NH : + PRESTERA_FIB_TYPE_TRAP; + break; + /* Unsupported. Leave it for kernel: */ + case RTN_BROADCAST: + case RTN_MULTICAST: + /* Routes we must trap by design: */ + case RTN_LOCAL: + case RTN_UNREACHABLE: + case RTN_PROHIBIT: + fc->lpm_info.fib_type = PRESTERA_FIB_TYPE_TRAP; + break; + case RTN_BLACKHOLE: + fc->lpm_info.fib_type = PRESTERA_FIB_TYPE_DROP; + break; + default: + dev_err(sw->dev->dev, "Unsupported fib_type"); + return -EOPNOTSUPP; + } + + fc->lpm_info.fib_key.addr = fc->key.addr; + fc->lpm_info.fib_key.prefix_len = fc->key.prefix_len; + fc->lpm_info.fib_key.tb_id = prestera_fix_tb_id(fc->key.kern_tb_id); + + return 0; +} + +static int __prestera_k_arb_f_lpm_set(struct prestera_switch *sw, + struct prestera_kern_fib_cache *fc, + bool enabled) +{ + struct prestera_fib_node *fib_node; + + fib_node = prestera_fib_node_find(sw, &fc->lpm_info.fib_key); + if (fib_node) + prestera_fib_node_destroy(sw, fib_node); + + if (!enabled) + return 0; + + fib_node = prestera_fib_node_create(sw, &fc->lpm_info.fib_key, + fc->lpm_info.fib_type, + &fc->lpm_info.nh_grp_key); + + if (!fib_node) { + dev_err(sw->dev->dev, "fib_node=NULL %pI4n/%d kern_tb_id = %d", + &fc->key.addr.u.ipv4, fc->key.prefix_len, + fc->key.kern_tb_id); + return -ENOENT; + } + + return 0; +} + +static int __prestera_k_arb_fc_apply(struct prestera_switch *sw, + struct prestera_kern_fib_cache *fc) +{ + int err; + + err = __prestera_pr_k_arb_fc_lpm_info_calc(sw, fc); + if (err) + return err; + + err = __prestera_k_arb_f_lpm_set(sw, fc, fc->reachable); + if (err) { + __prestera_k_arb_fib_lpm_offload_set(sw, fc, + true, false, false); + return err; + } + + switch (fc->lpm_info.fib_type) { + case PRESTERA_FIB_TYPE_UC_NH: + __prestera_k_arb_fib_lpm_offload_set(sw, fc, false, + fc->reachable, false); + break; + case PRESTERA_FIB_TYPE_TRAP: + __prestera_k_arb_fib_lpm_offload_set(sw, fc, false, + false, fc->reachable); + break; + case PRESTERA_FIB_TYPE_DROP: + __prestera_k_arb_fib_lpm_offload_set(sw, fc, false, true, + fc->reachable); + break; + case PRESTERA_FIB_TYPE_INVALID: + break; + } + + return 0; +} + +static struct prestera_kern_fib_cache * +__prestera_k_arb_util_fib_overlaps(struct prestera_switch *sw, + struct prestera_kern_fib_cache *fc) +{ + struct prestera_kern_fib_cache_key fc_key; + struct prestera_kern_fib_cache *rfc; + + /* TODO: parse kernel rules */ + rfc = NULL; + if (fc->key.kern_tb_id == RT_TABLE_LOCAL) { + memcpy(&fc_key, &fc->key, sizeof(fc_key)); + fc_key.kern_tb_id = RT_TABLE_MAIN; + rfc = prestera_kern_fib_cache_find(sw, &fc_key); + } + + return rfc; +} + +static struct prestera_kern_fib_cache * +__prestera_k_arb_util_fib_overlapped(struct prestera_switch *sw, + struct prestera_kern_fib_cache *fc) +{ + struct prestera_kern_fib_cache_key fc_key; + struct prestera_kern_fib_cache *rfc; + + /* TODO: parse kernel rules */ + rfc = NULL; + if (fc->key.kern_tb_id == RT_TABLE_MAIN) { + memcpy(&fc_key, &fc->key, sizeof(fc_key)); + fc_key.kern_tb_id = RT_TABLE_LOCAL; + rfc = prestera_kern_fib_cache_find(sw, &fc_key); + } + + return rfc; +} + +static void __prestera_k_arb_hw_state_upd(struct prestera_switch *sw, + struct prestera_kern_neigh_cache *nc) +{ + struct prestera_nh_neigh_key nh_key; + struct prestera_nh_neigh *nh_neigh; + struct neighbour *n; + bool hw_active; + + prestera_util_nc_key2nh_key(&nc->key, &nh_key); + nh_neigh = prestera_nh_neigh_find(sw, &nh_key); + if (!nh_neigh) { + pr_err("Cannot find nh_neigh for cached %pI4n", + &nc->key.addr.u.ipv4); + return; + } + + hw_active = prestera_nh_neigh_util_hw_state(sw, nh_neigh); + +#ifdef PRESTERA_IMPLICITY_RESOLVE_DEAD_NEIGH + if (!hw_active && nc->in_kernel) + goto out; +#else /* PRESTERA_IMPLICITY_RESOLVE_DEAD_NEIGH */ + if (!hw_active) + goto out; +#endif /* PRESTERA_IMPLICITY_RESOLVE_DEAD_NEIGH */ + + if (nc->key.addr.v == PRESTERA_IPV4) { + n = neigh_lookup(&arp_tbl, &nc->key.addr.u.ipv4, + nc->key.dev); + if (!n) + n = neigh_create(&arp_tbl, &nc->key.addr.u.ipv4, + nc->key.dev); + } else { + n = NULL; + } + + if (!IS_ERR(n) && n) { + neigh_event_send(n, NULL); + neigh_release(n); + } else { + pr_err("Cannot create neighbour %pI4n", &nc->key.addr.u.ipv4); + } + +out: + return; +} + +/* Propagate hw state to kernel */ +static void prestera_k_arb_hw_evt(struct prestera_switch *sw) +{ + struct prestera_kern_neigh_cache *n_cache; + struct rhashtable_iter iter; + + rhashtable_walk_enter(&sw->router->kern_neigh_cache_ht, &iter); + rhashtable_walk_start(&iter); + while (1) { + n_cache = rhashtable_walk_next(&iter); + + if (!n_cache) + break; + + if (IS_ERR(n_cache)) + continue; + + rhashtable_walk_stop(&iter); + __prestera_k_arb_hw_state_upd(sw, n_cache); + rhashtable_walk_start(&iter); + } + rhashtable_walk_stop(&iter); + rhashtable_walk_exit(&iter); +} + +/* Propagate kernel event to hw */ +static void prestera_k_arb_n_evt(struct prestera_switch *sw, + struct neighbour *n) +{ + struct prestera_kern_neigh_cache_key n_key; + struct prestera_kern_neigh_cache *n_cache; + int err; + + err = prestera_util_neigh2nc_key(sw, n, &n_key); + if (err) + return; + + n_cache = prestera_kern_neigh_cache_find(sw, &n_key); + if (!n_cache) { + n_cache = prestera_kern_neigh_cache_get(sw, &n_key); + if (!n_cache) + return; + __prestera_k_arb_nc_kern_fib_fetch(sw, n_cache); + } + + __prestera_k_arb_nc_kern_n_fetch(sw, n_cache); + __prestera_k_arb_nc_apply(sw, n_cache); + + prestera_kern_neigh_cache_put(sw, n_cache); +} + +static void __prestera_k_arb_fib_evt2nc(struct prestera_switch *sw) +{ + struct prestera_kern_neigh_cache *n_cache; + struct rhashtable_iter iter; + + rhashtable_walk_enter(&sw->router->kern_neigh_cache_ht, &iter); + rhashtable_walk_start(&iter); + while (1) { + n_cache = rhashtable_walk_next(&iter); + + if (!n_cache) + break; + + if (IS_ERR(n_cache)) + continue; + + rhashtable_walk_stop(&iter); + __prestera_k_arb_nc_kern_fib_fetch(sw, n_cache); + __prestera_k_arb_nc_apply(sw, n_cache); + rhashtable_walk_start(&iter); + } + rhashtable_walk_stop(&iter); + rhashtable_walk_exit(&iter); +} + +static int +prestera_k_arb_fib_evt(struct prestera_switch *sw, + bool replace, /* replace or del */ + struct fib_notifier_info *info) +{ + struct prestera_kern_fib_cache *tfib_cache, *bfib_cache; /* top/btm */ + struct prestera_kern_fib_cache_key fc_key; + struct prestera_kern_fib_cache *fib_cache; + int err; + + prestera_util_fen_info2fib_cache_key(info, &fc_key); + fib_cache = prestera_kern_fib_cache_find(sw, &fc_key); + if (fib_cache) { + fib_cache->reachable = false; + err = __prestera_k_arb_fc_apply(sw, fib_cache); + if (err) + dev_err(sw->dev->dev, + "Applying destroyed fib_cache failed"); + + bfib_cache = __prestera_k_arb_util_fib_overlaps(sw, fib_cache); + tfib_cache = __prestera_k_arb_util_fib_overlapped(sw, fib_cache); + if (!tfib_cache && bfib_cache) { + bfib_cache->reachable = true; + err = __prestera_k_arb_fc_apply(sw, bfib_cache); + if (err) + dev_err(sw->dev->dev, + "Applying fib_cache btm failed"); + } + + prestera_kern_fib_cache_destroy(sw, fib_cache); + } + + if (replace) { + fib_cache = prestera_kern_fib_cache_create(sw, &fc_key, info); + if (!fib_cache) { + dev_err(sw->dev->dev, "fib_cache == NULL"); + return -ENOENT; + } + + bfib_cache = __prestera_k_arb_util_fib_overlaps(sw, fib_cache); + tfib_cache = __prestera_k_arb_util_fib_overlapped(sw, fib_cache); + if (!tfib_cache) + fib_cache->reachable = true; + + if (bfib_cache) { + bfib_cache->reachable = false; + err = __prestera_k_arb_fc_apply(sw, bfib_cache); + if (err) + dev_err(sw->dev->dev, + "Applying fib_cache btm failed"); + } + + err = __prestera_k_arb_fc_apply(sw, fib_cache); + if (err) + dev_err(sw->dev->dev, "Applying fib_cache failed"); + } + + /* Update all neighs to resolve overlapped and apply related */ + __prestera_k_arb_fib_evt2nc(sw); + + return 0; +} + +static void __prestera_k_arb_abort_neigh_ht_cb(void *ptr, void *arg) +{ + struct prestera_kern_neigh_cache *n_cache = ptr; + struct prestera_switch *sw = arg; + + if (!list_empty(&n_cache->kern_fib_cache_list)) { + WARN_ON(1); /* BUG */ + return; + } + __prestera_k_arb_n_offload_set(sw, n_cache, false); + n_cache->in_kernel = false; + /* No need to destroy lpm. + * It will be aborted by destroy_ht + */ + __prestera_kern_neigh_cache_destruct(sw, n_cache); + kfree(n_cache); +} + +static void __prestera_k_arb_abort_fib_ht_cb(void *ptr, void *arg) +{ + struct prestera_kern_fib_cache *fib_cache = ptr; + struct prestera_switch *sw = arg; + + __prestera_k_arb_fib_lpm_offload_set(sw, fib_cache, + false, false, + false); + __prestera_k_arb_fib_nh_offload_set(sw, fib_cache, NULL, + false, false); + /* No need to destroy lpm. + * It will be aborted by destroy_ht + */ + __prestera_kern_fib_cache_destruct(sw, fib_cache); + kfree(fib_cache); +} + +static void prestera_k_arb_abort(struct prestera_switch *sw) +{ + /* Function to remove all arbiter entries and related hw objects. */ + /* Sequence: + * 1) Clear arbiter tables, but don't touch hw + * 2) Clear hw + * We use such approach, because arbiter object is not directly mapped + * to hw. So deletion of one arbiter object may even lead to creation of + * hw object (e.g. in case of overlapped routes). + */ + rhashtable_free_and_destroy(&sw->router->kern_fib_cache_ht, + __prestera_k_arb_abort_fib_ht_cb, + sw); + rhashtable_free_and_destroy(&sw->router->kern_neigh_cache_ht, + __prestera_k_arb_abort_neigh_ht_cb, + sw); +} + +static int __prestera_inetaddr_port_event(struct net_device *port_dev, + unsigned long event, + struct netlink_ext_ack *extack) +{ + struct prestera_port *port = netdev_priv(port_dev); + struct prestera_rif_entry_key re_key = {}; + struct prestera_rif_entry *re; + u32 kern_tb_id; + int err; + + err = prestera_is_valid_mac_addr(port, port_dev->dev_addr); + if (err) { + NL_SET_ERR_MSG_MOD(extack, "RIF MAC must have the same prefix"); + return err; + } + + kern_tb_id = l3mdev_fib_table(port_dev); + re_key.iface.type = PRESTERA_IF_PORT_E; + re_key.iface.dev_port.hw_dev_num = port->dev_id; + re_key.iface.dev_port.port_num = port->hw_id; + re = prestera_rif_entry_find(port->sw, &re_key); + + switch (event) { + case NETDEV_UP: + if (re) { + NL_SET_ERR_MSG_MOD(extack, "RIF already exist"); + return -EEXIST; + } + re = prestera_rif_entry_create(port->sw, &re_key, + prestera_fix_tb_id(kern_tb_id), + port_dev->dev_addr); + if (!re) { + NL_SET_ERR_MSG_MOD(extack, "Can't create RIF"); + return -EINVAL; + } + dev_hold(port_dev); + break; + case NETDEV_DOWN: + if (!re) { + NL_SET_ERR_MSG_MOD(extack, "Can't find RIF"); + return -EEXIST; + } + prestera_rif_entry_destroy(port->sw, re); + dev_put(port_dev); + break; + } + + return 0; +} + +static int __prestera_inetaddr_event(struct prestera_switch *sw, + struct net_device *dev, + unsigned long event, + struct netlink_ext_ack *extack) +{ + if (!prestera_netdev_check(dev) || netif_is_any_bridge_port(dev) || + netif_is_lag_port(dev)) + return 0; + + return __prestera_inetaddr_port_event(dev, event, extack); +} + +static int __prestera_inetaddr_cb(struct notifier_block *nb, + unsigned long event, void *ptr) +{ + struct in_ifaddr *ifa = (struct in_ifaddr *)ptr; + struct net_device *dev = ifa->ifa_dev->dev; + struct prestera_router *router = container_of(nb, + struct prestera_router, + inetaddr_nb); + struct in_device *idev; + int err = 0; + + if (event != NETDEV_DOWN) + goto out; + + /* Ignore if this is not latest address */ + idev = __in_dev_get_rtnl(dev); + if (idev && idev->ifa_list) + goto out; + + err = __prestera_inetaddr_event(router->sw, dev, event, NULL); +out: + return notifier_from_errno(err); +} + +static int __prestera_inetaddr_valid_cb(struct notifier_block *nb, + unsigned long event, void *ptr) +{ + struct in_validator_info *ivi = (struct in_validator_info *)ptr; + struct net_device *dev = ivi->ivi_dev->dev; + struct prestera_router *router = container_of(nb, + struct prestera_router, + inetaddr_valid_nb); + struct in_device *idev; + int err = 0; + + if (event != NETDEV_UP) + goto out; + + /* Ignore if this is not first address */ + idev = __in_dev_get_rtnl(dev); + if (idev && idev->ifa_list) + goto out; + + if (ipv4_is_multicast(ivi->ivi_addr)) { + NL_SET_ERR_MSG_MOD(ivi->extack, + "Multicast addr on RIF is not supported"); + err = -EINVAL; + goto out; + } + + err = __prestera_inetaddr_event(router->sw, dev, event, ivi->extack); +out: + return notifier_from_errno(err); +} + +struct prestera_fib_event_work { + struct work_struct work; + struct prestera_switch *sw; + struct fib_entry_notifier_info fen_info; + unsigned long event; +}; + +static void __prestera_router_fib_event_work(struct work_struct *work) +{ + struct prestera_fib_event_work *fib_work = + container_of(work, struct prestera_fib_event_work, work); + struct prestera_switch *sw = fib_work->sw; + int err; + + rtnl_lock(); + + switch (fib_work->event) { + case FIB_EVENT_ENTRY_REPLACE: + err = prestera_k_arb_fib_evt(sw, true, + &fib_work->fen_info.info); + if (err) + goto err_out; + + break; + case FIB_EVENT_ENTRY_DEL: + err = prestera_k_arb_fib_evt(sw, false, + &fib_work->fen_info.info); + if (err) + goto err_out; + + break; + } + + goto out; + +err_out: + dev_err(sw->dev->dev, "Error when processing %pI4h/%d", + &fib_work->fen_info.dst, + fib_work->fen_info.dst_len); +out: + fib_info_put(fib_work->fen_info.fi); + rtnl_unlock(); + kfree(fib_work); +} + +/* Called with rcu_read_lock() */ +static int __prestera_router_fib_event(struct notifier_block *nb, + unsigned long event, void *ptr) +{ + struct prestera_fib_event_work *fib_work; + struct fib_entry_notifier_info *fen_info; + struct fib_notifier_info *info = ptr; + struct prestera_router *router; + + if (info->family != AF_INET) + return NOTIFY_DONE; + + router = container_of(nb, struct prestera_router, fib_nb); + + switch (event) { + case FIB_EVENT_ENTRY_REPLACE: + case FIB_EVENT_ENTRY_DEL: + fen_info = container_of(info, struct fib_entry_notifier_info, + info); + if (!fen_info->fi) + return NOTIFY_DONE; + + fib_work = kzalloc(sizeof(*fib_work), GFP_ATOMIC); + if (WARN_ON(!fib_work)) + return NOTIFY_BAD; + + fib_info_hold(fen_info->fi); + fib_work->fen_info = *fen_info; + fib_work->event = event; + fib_work->sw = router->sw; + INIT_WORK(&fib_work->work, __prestera_router_fib_event_work); + prestera_queue_work(&fib_work->work); + break; + default: + return NOTIFY_DONE; + } + + return NOTIFY_DONE; +} + +struct prestera_netevent_work { + struct work_struct work; + struct prestera_switch *sw; + struct neighbour *n; +}; + +static void prestera_router_neigh_event_work(struct work_struct *work) +{ + struct prestera_netevent_work *net_work = + container_of(work, struct prestera_netevent_work, work); + struct prestera_switch *sw = net_work->sw; + struct neighbour *n = net_work->n; + + /* neigh - its not hw related object. It stored only in kernel. So... */ + rtnl_lock(); + + prestera_k_arb_n_evt(sw, n); + + neigh_release(n); + rtnl_unlock(); + kfree(net_work); +} + +static int prestera_router_netevent_event(struct notifier_block *nb, + unsigned long event, void *ptr) +{ + struct prestera_netevent_work *net_work; + struct prestera_router *router; + struct neighbour *n = ptr; + + router = container_of(nb, struct prestera_router, netevent_nb); + + switch (event) { + case NETEVENT_NEIGH_UPDATE: + if (n->tbl->family != AF_INET) + return NOTIFY_DONE; + + net_work = kzalloc(sizeof(*net_work), GFP_ATOMIC); + if (WARN_ON(!net_work)) + return NOTIFY_BAD; + + neigh_clone(n); + net_work->n = n; + net_work->sw = router->sw; + INIT_WORK(&net_work->work, prestera_router_neigh_event_work); + prestera_queue_work(&net_work->work); + } + + return NOTIFY_DONE; +} + +static void prestera_router_update_neighs_work(struct work_struct *work) +{ + struct prestera_router *router; + + router = container_of(work, struct prestera_router, + neighs_update.dw.work); + rtnl_lock(); + + prestera_k_arb_hw_evt(router->sw); + + rtnl_unlock(); + prestera_queue_delayed_work(&router->neighs_update.dw, + msecs_to_jiffies(PRESTERA_NH_PROBE_INTERVAL)); +} + +static int prestera_neigh_work_init(struct prestera_switch *sw) +{ + INIT_DELAYED_WORK(&sw->router->neighs_update.dw, + prestera_router_update_neighs_work); + prestera_queue_delayed_work(&sw->router->neighs_update.dw, 0); + return 0; +} + +static void prestera_neigh_work_fini(struct prestera_switch *sw) +{ + cancel_delayed_work_sync(&sw->router->neighs_update.dw); +} + +int prestera_router_init(struct prestera_switch *sw) +{ + struct prestera_router *router; + int err, nhgrp_cache_bytes; + + router = kzalloc(sizeof(*sw->router), GFP_KERNEL); + if (!router) + return -ENOMEM; + + sw->router = router; + router->sw = sw; + + err = prestera_router_hw_init(sw); + if (err) + goto err_router_lib_init; + + err = rhashtable_init(&router->kern_fib_cache_ht, + &__prestera_kern_fib_cache_ht_params); + if (err) + goto err_kern_fib_cache_ht_init; + + err = rhashtable_init(&router->kern_neigh_cache_ht, + &__prestera_kern_neigh_cache_ht_params); + if (err) + goto err_kern_neigh_cache_ht_init; + + nhgrp_cache_bytes = sw->size_tbl_router_nexthop / 8 + 1; + router->nhgrp_hw_state_cache = kzalloc(nhgrp_cache_bytes, GFP_KERNEL); + if (!router->nhgrp_hw_state_cache) { + err = -ENOMEM; + goto err_nh_state_cache_alloc; + } + + err = prestera_neigh_work_init(sw); + if (err) + goto err_neigh_work_init; + + router->inetaddr_valid_nb.notifier_call = __prestera_inetaddr_valid_cb; + err = register_inetaddr_validator_notifier(&router->inetaddr_valid_nb); + if (err) + goto err_register_inetaddr_validator_notifier; + + router->inetaddr_nb.notifier_call = __prestera_inetaddr_cb; + err = register_inetaddr_notifier(&router->inetaddr_nb); + if (err) + goto err_register_inetaddr_notifier; + + router->netevent_nb.notifier_call = prestera_router_netevent_event; + err = register_netevent_notifier(&router->netevent_nb); + if (err) + goto err_register_netevent_notifier; + + router->fib_nb.notifier_call = __prestera_router_fib_event; + err = register_fib_notifier(&init_net, &router->fib_nb, + /* TODO: flush fib entries */ NULL, NULL); + if (err) + goto err_register_fib_notifier; + + return 0; + +err_register_fib_notifier: + unregister_netevent_notifier(&router->netevent_nb); +err_register_netevent_notifier: + unregister_inetaddr_notifier(&router->inetaddr_nb); +err_register_inetaddr_notifier: + unregister_inetaddr_validator_notifier(&router->inetaddr_valid_nb); +err_register_inetaddr_validator_notifier: + prestera_neigh_work_fini(sw); +err_neigh_work_init: + kfree(router->nhgrp_hw_state_cache); +err_nh_state_cache_alloc: + rhashtable_destroy(&router->kern_neigh_cache_ht); +err_kern_neigh_cache_ht_init: + rhashtable_destroy(&router->kern_fib_cache_ht); +err_kern_fib_cache_ht_init: + prestera_router_hw_fini(sw); +err_router_lib_init: + kfree(sw->router); + return err; +} + +void prestera_router_fini(struct prestera_switch *sw) +{ + unregister_fib_notifier(&init_net, &sw->router->fib_nb); + unregister_netevent_notifier(&sw->router->netevent_nb); + unregister_inetaddr_notifier(&sw->router->inetaddr_nb); + unregister_inetaddr_validator_notifier(&sw->router->inetaddr_valid_nb); + prestera_neigh_work_fini(sw); + prestera_queue_drain(); + + prestera_k_arb_abort(sw); + + kfree(sw->router->nhgrp_hw_state_cache); + rhashtable_destroy(&sw->router->kern_fib_cache_ht); + prestera_router_hw_fini(sw); + kfree(sw->router); + sw->router = NULL; +} diff --git a/drivers/net/ethernet/marvell/prestera/prestera_router_hw.c b/drivers/net/ethernet/marvell/prestera/prestera_router_hw.c new file mode 100644 index 000000000..02faaea2a --- /dev/null +++ b/drivers/net/ethernet/marvell/prestera/prestera_router_hw.c @@ -0,0 +1,688 @@ +// SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0 +/* Copyright (c) 2019-2021 Marvell International Ltd. All rights reserved */ + +#include <linux/rhashtable.h> + +#include "prestera.h" +#include "prestera_hw.h" +#include "prestera_router_hw.h" +#include "prestera_acl.h" + +/* Nexthop is pointed + * to port (not rif) + * +-------+ + * +>|nexthop| + * | +-------+ + * | + * +--+ +-----++ + * +------->|vr|<-+ +>|nh_grp| + * | +--+ | | +------+ + * | | | + * +-+-------+ +--+---+-+ + * |rif_entry| |fib_node| + * +---------+ +--------+ + * Rif is Fib - is exit point + * used as + * entry point + * for vr in hw + */ + +#define PRESTERA_NHGR_UNUSED (0) +#define PRESTERA_NHGR_DROP (0xFFFFFFFF) +/* Need to merge it with router_manager */ +#define PRESTERA_NH_ACTIVE_JIFFER_FILTER 3000 /* ms */ + +static const struct rhashtable_params __prestera_fib_ht_params = { + .key_offset = offsetof(struct prestera_fib_node, key), + .head_offset = offsetof(struct prestera_fib_node, ht_node), + .key_len = sizeof(struct prestera_fib_key), + .automatic_shrinking = true, +}; + +static const struct rhashtable_params __prestera_nh_neigh_ht_params = { + .key_offset = offsetof(struct prestera_nh_neigh, key), + .key_len = sizeof(struct prestera_nh_neigh_key), + .head_offset = offsetof(struct prestera_nh_neigh, ht_node), +}; + +static const struct rhashtable_params __prestera_nexthop_group_ht_params = { + .key_offset = offsetof(struct prestera_nexthop_group, key), + .key_len = sizeof(struct prestera_nexthop_group_key), + .head_offset = offsetof(struct prestera_nexthop_group, ht_node), +}; + +static int prestera_nexthop_group_set(struct prestera_switch *sw, + struct prestera_nexthop_group *nh_grp); +static bool +prestera_nexthop_group_util_hw_state(struct prestera_switch *sw, + struct prestera_nexthop_group *nh_grp); +static void prestera_fib_node_destroy_ht_cb(void *ptr, void *arg); + +/* TODO: move to router.h as macros */ +static bool prestera_nh_neigh_key_is_valid(struct prestera_nh_neigh_key *key) +{ + return memchr_inv(key, 0, sizeof(*key)) ? true : false; +} + +int prestera_router_hw_init(struct prestera_switch *sw) +{ + int err; + + err = rhashtable_init(&sw->router->nh_neigh_ht, + &__prestera_nh_neigh_ht_params); + if (err) + goto err_nh_neigh_ht_init; + + err = rhashtable_init(&sw->router->nexthop_group_ht, + &__prestera_nexthop_group_ht_params); + if (err) + goto err_nexthop_grp_ht_init; + + err = rhashtable_init(&sw->router->fib_ht, + &__prestera_fib_ht_params); + if (err) + goto err_fib_ht_init; + + INIT_LIST_HEAD(&sw->router->vr_list); + INIT_LIST_HEAD(&sw->router->rif_entry_list); + + return 0; + +err_fib_ht_init: + rhashtable_destroy(&sw->router->nexthop_group_ht); +err_nexthop_grp_ht_init: + rhashtable_destroy(&sw->router->nh_neigh_ht); +err_nh_neigh_ht_init: + return 0; +} + +void prestera_router_hw_fini(struct prestera_switch *sw) +{ + rhashtable_free_and_destroy(&sw->router->fib_ht, + prestera_fib_node_destroy_ht_cb, sw); + WARN_ON(!list_empty(&sw->router->vr_list)); + WARN_ON(!list_empty(&sw->router->rif_entry_list)); + rhashtable_destroy(&sw->router->fib_ht); + rhashtable_destroy(&sw->router->nexthop_group_ht); + rhashtable_destroy(&sw->router->nh_neigh_ht); +} + +static struct prestera_vr *__prestera_vr_find(struct prestera_switch *sw, + u32 tb_id) +{ + struct prestera_vr *vr; + + list_for_each_entry(vr, &sw->router->vr_list, router_node) { + if (vr->tb_id == tb_id) + return vr; + } + + return NULL; +} + +static struct prestera_vr *__prestera_vr_create(struct prestera_switch *sw, + u32 tb_id, + struct netlink_ext_ack *extack) +{ + struct prestera_vr *vr; + int err; + + vr = kzalloc(sizeof(*vr), GFP_KERNEL); + if (!vr) { + err = -ENOMEM; + goto err_alloc_vr; + } + + vr->tb_id = tb_id; + + err = prestera_hw_vr_create(sw, &vr->hw_vr_id); + if (err) + goto err_hw_create; + + list_add(&vr->router_node, &sw->router->vr_list); + + return vr; + +err_hw_create: + kfree(vr); +err_alloc_vr: + return ERR_PTR(err); +} + +static void __prestera_vr_destroy(struct prestera_switch *sw, + struct prestera_vr *vr) +{ + list_del(&vr->router_node); + prestera_hw_vr_delete(sw, vr->hw_vr_id); + kfree(vr); +} + +static struct prestera_vr *prestera_vr_get(struct prestera_switch *sw, u32 tb_id, + struct netlink_ext_ack *extack) +{ + struct prestera_vr *vr; + + vr = __prestera_vr_find(sw, tb_id); + if (vr) { + refcount_inc(&vr->refcount); + } else { + vr = __prestera_vr_create(sw, tb_id, extack); + if (IS_ERR(vr)) + return ERR_CAST(vr); + + refcount_set(&vr->refcount, 1); + } + + return vr; +} + +static void prestera_vr_put(struct prestera_switch *sw, struct prestera_vr *vr) +{ + if (refcount_dec_and_test(&vr->refcount)) + __prestera_vr_destroy(sw, vr); +} + +/* iface is overhead struct. vr_id also can be removed. */ +static int +__prestera_rif_entry_key_copy(const struct prestera_rif_entry_key *in, + struct prestera_rif_entry_key *out) +{ + memset(out, 0, sizeof(*out)); + + switch (in->iface.type) { + case PRESTERA_IF_PORT_E: + out->iface.dev_port.hw_dev_num = in->iface.dev_port.hw_dev_num; + out->iface.dev_port.port_num = in->iface.dev_port.port_num; + break; + case PRESTERA_IF_LAG_E: + out->iface.lag_id = in->iface.lag_id; + break; + case PRESTERA_IF_VID_E: + out->iface.vlan_id = in->iface.vlan_id; + break; + default: + WARN(1, "Unsupported iface type"); + return -EINVAL; + } + + out->iface.type = in->iface.type; + return 0; +} + +struct prestera_rif_entry * +prestera_rif_entry_find(const struct prestera_switch *sw, + const struct prestera_rif_entry_key *k) +{ + struct prestera_rif_entry *rif_entry; + struct prestera_rif_entry_key lk; /* lookup key */ + + if (__prestera_rif_entry_key_copy(k, &lk)) + return NULL; + + list_for_each_entry(rif_entry, &sw->router->rif_entry_list, + router_node) { + if (!memcmp(k, &rif_entry->key, sizeof(*k))) + return rif_entry; + } + + return NULL; +} + +void prestera_rif_entry_destroy(struct prestera_switch *sw, + struct prestera_rif_entry *e) +{ + struct prestera_iface iface; + + list_del(&e->router_node); + + memcpy(&iface, &e->key.iface, sizeof(iface)); + iface.vr_id = e->vr->hw_vr_id; + prestera_hw_rif_delete(sw, e->hw_id, &iface); + + prestera_vr_put(sw, e->vr); + kfree(e); +} + +struct prestera_rif_entry * +prestera_rif_entry_create(struct prestera_switch *sw, + struct prestera_rif_entry_key *k, + u32 tb_id, const unsigned char *addr) +{ + int err; + struct prestera_rif_entry *e; + struct prestera_iface iface; + + e = kzalloc(sizeof(*e), GFP_KERNEL); + if (!e) + goto err_kzalloc; + + if (__prestera_rif_entry_key_copy(k, &e->key)) + goto err_key_copy; + + e->vr = prestera_vr_get(sw, tb_id, NULL); + if (IS_ERR(e->vr)) + goto err_vr_get; + + memcpy(&e->addr, addr, sizeof(e->addr)); + + /* HW */ + memcpy(&iface, &e->key.iface, sizeof(iface)); + iface.vr_id = e->vr->hw_vr_id; + err = prestera_hw_rif_create(sw, &iface, e->addr, &e->hw_id); + if (err) + goto err_hw_create; + + list_add(&e->router_node, &sw->router->rif_entry_list); + + return e; + +err_hw_create: + prestera_vr_put(sw, e->vr); +err_vr_get: +err_key_copy: + kfree(e); +err_kzalloc: + return NULL; +} + +static void __prestera_nh_neigh_destroy(struct prestera_switch *sw, + struct prestera_nh_neigh *neigh) +{ + rhashtable_remove_fast(&sw->router->nh_neigh_ht, + &neigh->ht_node, + __prestera_nh_neigh_ht_params); + kfree(neigh); +} + +static struct prestera_nh_neigh * +__prestera_nh_neigh_create(struct prestera_switch *sw, + struct prestera_nh_neigh_key *key) +{ + struct prestera_nh_neigh *neigh; + int err; + + neigh = kzalloc(sizeof(*neigh), GFP_KERNEL); + if (!neigh) + goto err_kzalloc; + + memcpy(&neigh->key, key, sizeof(*key)); + neigh->info.connected = false; + INIT_LIST_HEAD(&neigh->nexthop_group_list); + err = rhashtable_insert_fast(&sw->router->nh_neigh_ht, + &neigh->ht_node, + __prestera_nh_neigh_ht_params); + if (err) + goto err_rhashtable_insert; + + return neigh; + +err_rhashtable_insert: + kfree(neigh); +err_kzalloc: + return NULL; +} + +struct prestera_nh_neigh * +prestera_nh_neigh_find(struct prestera_switch *sw, + struct prestera_nh_neigh_key *key) +{ + struct prestera_nh_neigh *nh_neigh; + + nh_neigh = rhashtable_lookup_fast(&sw->router->nh_neigh_ht, + key, __prestera_nh_neigh_ht_params); + return nh_neigh; +} + +struct prestera_nh_neigh * +prestera_nh_neigh_get(struct prestera_switch *sw, + struct prestera_nh_neigh_key *key) +{ + struct prestera_nh_neigh *neigh; + + neigh = prestera_nh_neigh_find(sw, key); + if (!neigh) + return __prestera_nh_neigh_create(sw, key); + + return neigh; +} + +void prestera_nh_neigh_put(struct prestera_switch *sw, + struct prestera_nh_neigh *neigh) +{ + if (list_empty(&neigh->nexthop_group_list)) + __prestera_nh_neigh_destroy(sw, neigh); +} + +/* Updates new prestera_neigh_info */ +int prestera_nh_neigh_set(struct prestera_switch *sw, + struct prestera_nh_neigh *neigh) +{ + struct prestera_nh_neigh_head *nh_head; + struct prestera_nexthop_group *nh_grp; + int err; + + list_for_each_entry(nh_head, &neigh->nexthop_group_list, head) { + nh_grp = nh_head->this; + err = prestera_nexthop_group_set(sw, nh_grp); + if (err) + return err; + } + + return 0; +} + +bool prestera_nh_neigh_util_hw_state(struct prestera_switch *sw, + struct prestera_nh_neigh *nh_neigh) +{ + bool state; + struct prestera_nh_neigh_head *nh_head, *tmp; + + state = false; + list_for_each_entry_safe(nh_head, tmp, + &nh_neigh->nexthop_group_list, head) { + state = prestera_nexthop_group_util_hw_state(sw, nh_head->this); + if (state) + goto out; + } + +out: + return state; +} + +static struct prestera_nexthop_group * +__prestera_nexthop_group_create(struct prestera_switch *sw, + struct prestera_nexthop_group_key *key) +{ + struct prestera_nexthop_group *nh_grp; + struct prestera_nh_neigh *nh_neigh; + int nh_cnt, err, gid; + + nh_grp = kzalloc(sizeof(*nh_grp), GFP_KERNEL); + if (!nh_grp) + goto err_kzalloc; + + memcpy(&nh_grp->key, key, sizeof(*key)); + for (nh_cnt = 0; nh_cnt < PRESTERA_NHGR_SIZE_MAX; nh_cnt++) { + if (!prestera_nh_neigh_key_is_valid(&nh_grp->key.neigh[nh_cnt])) + break; + + nh_neigh = prestera_nh_neigh_get(sw, + &nh_grp->key.neigh[nh_cnt]); + if (!nh_neigh) + goto err_nh_neigh_get; + + nh_grp->nh_neigh_head[nh_cnt].neigh = nh_neigh; + nh_grp->nh_neigh_head[nh_cnt].this = nh_grp; + list_add(&nh_grp->nh_neigh_head[nh_cnt].head, + &nh_neigh->nexthop_group_list); + } + + err = prestera_hw_nh_group_create(sw, nh_cnt, &nh_grp->grp_id); + if (err) + goto err_nh_group_create; + + err = prestera_nexthop_group_set(sw, nh_grp); + if (err) + goto err_nexthop_group_set; + + err = rhashtable_insert_fast(&sw->router->nexthop_group_ht, + &nh_grp->ht_node, + __prestera_nexthop_group_ht_params); + if (err) + goto err_ht_insert; + + /* reset cache for created group */ + gid = nh_grp->grp_id; + sw->router->nhgrp_hw_state_cache[gid / 8] &= ~BIT(gid % 8); + + return nh_grp; + +err_ht_insert: +err_nexthop_group_set: + prestera_hw_nh_group_delete(sw, nh_cnt, nh_grp->grp_id); +err_nh_group_create: +err_nh_neigh_get: + for (nh_cnt--; nh_cnt >= 0; nh_cnt--) { + list_del(&nh_grp->nh_neigh_head[nh_cnt].head); + prestera_nh_neigh_put(sw, nh_grp->nh_neigh_head[nh_cnt].neigh); + } + + kfree(nh_grp); +err_kzalloc: + return NULL; +} + +static void +__prestera_nexthop_group_destroy(struct prestera_switch *sw, + struct prestera_nexthop_group *nh_grp) +{ + struct prestera_nh_neigh *nh_neigh; + int nh_cnt; + + rhashtable_remove_fast(&sw->router->nexthop_group_ht, + &nh_grp->ht_node, + __prestera_nexthop_group_ht_params); + + for (nh_cnt = 0; nh_cnt < PRESTERA_NHGR_SIZE_MAX; nh_cnt++) { + nh_neigh = nh_grp->nh_neigh_head[nh_cnt].neigh; + if (!nh_neigh) + break; + + list_del(&nh_grp->nh_neigh_head[nh_cnt].head); + prestera_nh_neigh_put(sw, nh_neigh); + } + + prestera_hw_nh_group_delete(sw, nh_cnt, nh_grp->grp_id); + kfree(nh_grp); +} + +static struct prestera_nexthop_group * +__prestera_nexthop_group_find(struct prestera_switch *sw, + struct prestera_nexthop_group_key *key) +{ + struct prestera_nexthop_group *nh_grp; + + nh_grp = rhashtable_lookup_fast(&sw->router->nexthop_group_ht, + key, __prestera_nexthop_group_ht_params); + return nh_grp; +} + +static struct prestera_nexthop_group * +prestera_nexthop_group_get(struct prestera_switch *sw, + struct prestera_nexthop_group_key *key) +{ + struct prestera_nexthop_group *nh_grp; + + nh_grp = __prestera_nexthop_group_find(sw, key); + if (nh_grp) { + refcount_inc(&nh_grp->refcount); + } else { + nh_grp = __prestera_nexthop_group_create(sw, key); + if (!nh_grp) + return ERR_PTR(-ENOMEM); + + refcount_set(&nh_grp->refcount, 1); + } + + return nh_grp; +} + +static void prestera_nexthop_group_put(struct prestera_switch *sw, + struct prestera_nexthop_group *nh_grp) +{ + if (refcount_dec_and_test(&nh_grp->refcount)) + __prestera_nexthop_group_destroy(sw, nh_grp); +} + +/* Updates with new nh_neigh's info */ +static int prestera_nexthop_group_set(struct prestera_switch *sw, + struct prestera_nexthop_group *nh_grp) +{ + struct prestera_neigh_info info[PRESTERA_NHGR_SIZE_MAX]; + struct prestera_nh_neigh *neigh; + int nh_cnt; + + memset(&info[0], 0, sizeof(info)); + for (nh_cnt = 0; nh_cnt < PRESTERA_NHGR_SIZE_MAX; nh_cnt++) { + neigh = nh_grp->nh_neigh_head[nh_cnt].neigh; + if (!neigh) + break; + + memcpy(&info[nh_cnt], &neigh->info, sizeof(neigh->info)); + } + + return prestera_hw_nh_entries_set(sw, nh_cnt, &info[0], nh_grp->grp_id); +} + +static bool +prestera_nexthop_group_util_hw_state(struct prestera_switch *sw, + struct prestera_nexthop_group *nh_grp) +{ + int err; + u32 buf_size = sw->size_tbl_router_nexthop / 8 + 1; + u32 gid = nh_grp->grp_id; + u8 *cache = sw->router->nhgrp_hw_state_cache; + + /* Antijitter + * Prevent situation, when we read state of nh_grp twice in short time, + * and state bit is still cleared on second call. So just stuck active + * state for PRESTERA_NH_ACTIVE_JIFFER_FILTER, after last occurred. + */ + if (!time_before(jiffies, sw->router->nhgrp_hw_cache_kick + + msecs_to_jiffies(PRESTERA_NH_ACTIVE_JIFFER_FILTER))) { + err = prestera_hw_nhgrp_blk_get(sw, cache, buf_size); + if (err) { + pr_err("Failed to get hw state nh_grp's"); + return false; + } + + sw->router->nhgrp_hw_cache_kick = jiffies; + } + + if (cache[gid / 8] & BIT(gid % 8)) + return true; + + return false; +} + +struct prestera_fib_node * +prestera_fib_node_find(struct prestera_switch *sw, struct prestera_fib_key *key) +{ + struct prestera_fib_node *fib_node; + + fib_node = rhashtable_lookup_fast(&sw->router->fib_ht, key, + __prestera_fib_ht_params); + return fib_node; +} + +static void __prestera_fib_node_destruct(struct prestera_switch *sw, + struct prestera_fib_node *fib_node) +{ + struct prestera_vr *vr; + + vr = fib_node->info.vr; + prestera_hw_lpm_del(sw, vr->hw_vr_id, fib_node->key.addr.u.ipv4, + fib_node->key.prefix_len); + switch (fib_node->info.type) { + case PRESTERA_FIB_TYPE_UC_NH: + prestera_nexthop_group_put(sw, fib_node->info.nh_grp); + break; + case PRESTERA_FIB_TYPE_TRAP: + break; + case PRESTERA_FIB_TYPE_DROP: + break; + default: + pr_err("Unknown fib_node->info.type = %d", + fib_node->info.type); + } + + prestera_vr_put(sw, vr); +} + +void prestera_fib_node_destroy(struct prestera_switch *sw, + struct prestera_fib_node *fib_node) +{ + __prestera_fib_node_destruct(sw, fib_node); + rhashtable_remove_fast(&sw->router->fib_ht, &fib_node->ht_node, + __prestera_fib_ht_params); + kfree(fib_node); +} + +static void prestera_fib_node_destroy_ht_cb(void *ptr, void *arg) +{ + struct prestera_fib_node *node = ptr; + struct prestera_switch *sw = arg; + + __prestera_fib_node_destruct(sw, node); + kfree(node); +} + +struct prestera_fib_node * +prestera_fib_node_create(struct prestera_switch *sw, + struct prestera_fib_key *key, + enum prestera_fib_type fib_type, + struct prestera_nexthop_group_key *nh_grp_key) +{ + struct prestera_fib_node *fib_node; + u32 grp_id; + struct prestera_vr *vr; + int err; + + fib_node = kzalloc(sizeof(*fib_node), GFP_KERNEL); + if (!fib_node) + goto err_kzalloc; + + memcpy(&fib_node->key, key, sizeof(*key)); + fib_node->info.type = fib_type; + + vr = prestera_vr_get(sw, key->tb_id, NULL); + if (IS_ERR(vr)) + goto err_vr_get; + + fib_node->info.vr = vr; + + switch (fib_type) { + case PRESTERA_FIB_TYPE_TRAP: + grp_id = PRESTERA_NHGR_UNUSED; + break; + case PRESTERA_FIB_TYPE_DROP: + grp_id = PRESTERA_NHGR_DROP; + break; + case PRESTERA_FIB_TYPE_UC_NH: + fib_node->info.nh_grp = prestera_nexthop_group_get(sw, + nh_grp_key); + if (IS_ERR(fib_node->info.nh_grp)) + goto err_nh_grp_get; + + grp_id = fib_node->info.nh_grp->grp_id; + break; + default: + pr_err("Unsupported fib_type %d", fib_type); + goto err_nh_grp_get; + } + + err = prestera_hw_lpm_add(sw, vr->hw_vr_id, key->addr.u.ipv4, + key->prefix_len, grp_id); + if (err) + goto err_lpm_add; + + err = rhashtable_insert_fast(&sw->router->fib_ht, &fib_node->ht_node, + __prestera_fib_ht_params); + if (err) + goto err_ht_insert; + + return fib_node; + +err_ht_insert: + prestera_hw_lpm_del(sw, vr->hw_vr_id, key->addr.u.ipv4, + key->prefix_len); +err_lpm_add: + if (fib_type == PRESTERA_FIB_TYPE_UC_NH) + prestera_nexthop_group_put(sw, fib_node->info.nh_grp); +err_nh_grp_get: + prestera_vr_put(sw, vr); +err_vr_get: + kfree(fib_node); +err_kzalloc: + return NULL; +} diff --git a/drivers/net/ethernet/marvell/prestera/prestera_router_hw.h b/drivers/net/ethernet/marvell/prestera/prestera_router_hw.h new file mode 100644 index 000000000..9ca97919c --- /dev/null +++ b/drivers/net/ethernet/marvell/prestera/prestera_router_hw.h @@ -0,0 +1,155 @@ +/* SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0 */ +/* Copyright (c) 2019-2021 Marvell International Ltd. All rights reserved. */ + +#ifndef _PRESTERA_ROUTER_HW_H_ +#define _PRESTERA_ROUTER_HW_H_ + +struct prestera_vr { + struct list_head router_node; + refcount_t refcount; + u32 tb_id; /* key (kernel fib table id) */ + u16 hw_vr_id; /* virtual router ID */ + u8 __pad[2]; +}; + +struct prestera_rif_entry { + struct prestera_rif_entry_key { + struct prestera_iface iface; + } key; + struct prestera_vr *vr; + unsigned char addr[ETH_ALEN]; + u16 hw_id; /* rif_id */ + struct list_head router_node; /* ht */ +}; + +struct prestera_ip_addr { + union { + __be32 ipv4; + struct in6_addr ipv6; + } u; + enum { + PRESTERA_IPV4 = 0, + PRESTERA_IPV6 + } v; +#define PRESTERA_IP_ADDR_PLEN(V) ((V) == PRESTERA_IPV4 ? 32 : \ + /* (V) == PRESTERA_IPV6 ? */ 128 /* : 0 */) +}; + +struct prestera_nh_neigh_key { + struct prestera_ip_addr addr; + /* Seems like rif is obsolete, because there is iface in info ? + * Key can contain functional fields, or fields, which is used to + * filter duplicate objects on logical level (before you pass it to + * HW)... also key can be used to cover hardware restrictions. + * In our case rif - is logical interface (even can be VLAN), which + * is used in combination with IP address (which is also not related to + * hardware nexthop) to provide logical compression of created nexthops. + * You even can imagine, that rif+IPaddr is just cookie. + */ + /* struct prestera_rif *rif; */ + /* Use just as cookie, to divide ARP domains (in order with addr) */ + void *rif; +}; + +/* Used for hw call */ +struct prestera_neigh_info { + struct prestera_iface iface; + unsigned char ha[ETH_ALEN]; + u8 connected; /* bool. indicate, if mac/oif valid */ + u8 __pad[1]; +}; + +/* Used to notify nh about neigh change */ +struct prestera_nh_neigh { + struct prestera_nh_neigh_key key; + struct prestera_neigh_info info; + struct rhash_head ht_node; /* node of prestera_vr */ + struct list_head nexthop_group_list; +}; + +#define PRESTERA_NHGR_SIZE_MAX 4 + +struct prestera_nexthop_group { + struct prestera_nexthop_group_key { + struct prestera_nh_neigh_key neigh[PRESTERA_NHGR_SIZE_MAX]; + } key; + /* Store intermediate object here. + * This prevent overhead kzalloc call. + */ + /* nh_neigh is used only to notify nexthop_group */ + struct prestera_nh_neigh_head { + struct prestera_nexthop_group *this; + struct list_head head; + /* ptr to neigh is not necessary. + * It used to prevent lookup of nh_neigh by key (n) on destroy + */ + struct prestera_nh_neigh *neigh; + } nh_neigh_head[PRESTERA_NHGR_SIZE_MAX]; + struct rhash_head ht_node; /* node of prestera_vr */ + refcount_t refcount; + u32 grp_id; /* hw */ +}; + +struct prestera_fib_key { + struct prestera_ip_addr addr; + u32 prefix_len; + u32 tb_id; +}; + +struct prestera_fib_info { + struct prestera_vr *vr; + struct list_head vr_node; + enum prestera_fib_type { + PRESTERA_FIB_TYPE_INVALID = 0, + /* must be pointer to nh_grp id */ + PRESTERA_FIB_TYPE_UC_NH, + /* It can be connected route + * and will be overlapped with neighbours + */ + PRESTERA_FIB_TYPE_TRAP, + PRESTERA_FIB_TYPE_DROP + } type; + /* Valid only if type = UC_NH*/ + struct prestera_nexthop_group *nh_grp; +}; + +struct prestera_fib_node { + struct rhash_head ht_node; /* node of prestera_vr */ + struct prestera_fib_key key; + struct prestera_fib_info info; /* action related info */ +}; + +struct prestera_rif_entry * +prestera_rif_entry_find(const struct prestera_switch *sw, + const struct prestera_rif_entry_key *k); +void prestera_rif_entry_destroy(struct prestera_switch *sw, + struct prestera_rif_entry *e); +struct prestera_rif_entry * +prestera_rif_entry_create(struct prestera_switch *sw, + struct prestera_rif_entry_key *k, + u32 tb_id, const unsigned char *addr); +struct prestera_nh_neigh * +prestera_nh_neigh_find(struct prestera_switch *sw, + struct prestera_nh_neigh_key *key); +struct prestera_nh_neigh * +prestera_nh_neigh_get(struct prestera_switch *sw, + struct prestera_nh_neigh_key *key); +void prestera_nh_neigh_put(struct prestera_switch *sw, + struct prestera_nh_neigh *neigh); +int prestera_nh_neigh_set(struct prestera_switch *sw, + struct prestera_nh_neigh *neigh); +bool prestera_nh_neigh_util_hw_state(struct prestera_switch *sw, + struct prestera_nh_neigh *nh_neigh); +struct prestera_fib_node *prestera_fib_node_find(struct prestera_switch *sw, + struct prestera_fib_key *key); +void prestera_fib_node_destroy(struct prestera_switch *sw, + struct prestera_fib_node *fib_node); +struct prestera_fib_node * +prestera_fib_node_create(struct prestera_switch *sw, + struct prestera_fib_key *key, + enum prestera_fib_type fib_type, + struct prestera_nexthop_group_key *nh_grp_key); +int prestera_router_hw_init(struct prestera_switch *sw); +void prestera_router_hw_fini(struct prestera_switch *sw); + +#endif /* _PRESTERA_ROUTER_HW_H_ */ diff --git a/drivers/net/ethernet/marvell/prestera/prestera_rxtx.c b/drivers/net/ethernet/marvell/prestera/prestera_rxtx.c new file mode 100644 index 000000000..9277a8fd1 --- /dev/null +++ b/drivers/net/ethernet/marvell/prestera/prestera_rxtx.c @@ -0,0 +1,823 @@ +// SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0 +/* Copyright (c) 2019-2020 Marvell International Ltd. All rights reserved */ + +#include <linux/bitfield.h> +#include <linux/dmapool.h> +#include <linux/etherdevice.h> +#include <linux/if_vlan.h> +#include <linux/of_address.h> +#include <linux/of_device.h> +#include <linux/of.h> +#include <linux/platform_device.h> + +#include "prestera_dsa.h" +#include "prestera.h" +#include "prestera_hw.h" +#include "prestera_rxtx.h" +#include "prestera_devlink.h" + +#define PRESTERA_SDMA_WAIT_MUL 10 + +struct prestera_sdma_desc { + __le32 word1; + __le32 word2; + __le32 buff; + __le32 next; +} __packed __aligned(16); + +#define PRESTERA_SDMA_BUFF_SIZE_MAX 1544 + +#define PRESTERA_SDMA_RX_DESC_PKT_LEN(desc) \ + ((le32_to_cpu((desc)->word2) >> 16) & GENMASK(13, 0)) + +#define PRESTERA_SDMA_RX_DESC_OWNER(desc) \ + ((le32_to_cpu((desc)->word1) & BIT(31)) >> 31) + +#define PRESTERA_SDMA_RX_DESC_IS_RCVD(desc) \ + (PRESTERA_SDMA_RX_DESC_OWNER(desc) == PRESTERA_SDMA_RX_DESC_CPU_OWN) + +#define PRESTERA_SDMA_RX_DESC_CPU_OWN 0 +#define PRESTERA_SDMA_RX_DESC_DMA_OWN 1 + +#define PRESTERA_SDMA_RX_QUEUE_NUM 8 + +#define PRESTERA_SDMA_RX_DESC_PER_Q 1000 + +#define PRESTERA_SDMA_TX_DESC_PER_Q 1000 +#define PRESTERA_SDMA_TX_MAX_BURST 64 + +#define PRESTERA_SDMA_TX_DESC_OWNER(desc) \ + ((le32_to_cpu((desc)->word1) & BIT(31)) >> 31) + +#define PRESTERA_SDMA_TX_DESC_CPU_OWN 0 +#define PRESTERA_SDMA_TX_DESC_DMA_OWN 1U + +#define PRESTERA_SDMA_TX_DESC_IS_SENT(desc) \ + (PRESTERA_SDMA_TX_DESC_OWNER(desc) == PRESTERA_SDMA_TX_DESC_CPU_OWN) + +#define PRESTERA_SDMA_TX_DESC_LAST BIT(20) +#define PRESTERA_SDMA_TX_DESC_FIRST BIT(21) +#define PRESTERA_SDMA_TX_DESC_CALC_CRC BIT(12) + +#define PRESTERA_SDMA_TX_DESC_SINGLE \ + (PRESTERA_SDMA_TX_DESC_FIRST | PRESTERA_SDMA_TX_DESC_LAST) + +#define PRESTERA_SDMA_TX_DESC_INIT \ + (PRESTERA_SDMA_TX_DESC_SINGLE | PRESTERA_SDMA_TX_DESC_CALC_CRC) + +#define PRESTERA_SDMA_RX_INTR_MASK_REG 0x2814 +#define PRESTERA_SDMA_RX_QUEUE_STATUS_REG 0x2680 +#define PRESTERA_SDMA_RX_QUEUE_DESC_REG(n) (0x260C + (n) * 16) + +#define PRESTERA_SDMA_TX_QUEUE_DESC_REG 0x26C0 +#define PRESTERA_SDMA_TX_QUEUE_START_REG 0x2868 + +struct prestera_sdma_buf { + struct prestera_sdma_desc *desc; + dma_addr_t desc_dma; + struct sk_buff *skb; + dma_addr_t buf_dma; + bool is_used; +}; + +struct prestera_rx_ring { + struct prestera_sdma_buf *bufs; + int next_rx; +}; + +struct prestera_tx_ring { + struct prestera_sdma_buf *bufs; + int next_tx; + int max_burst; + int burst; +}; + +struct prestera_sdma { + struct prestera_rx_ring rx_ring[PRESTERA_SDMA_RX_QUEUE_NUM]; + struct prestera_tx_ring tx_ring; + struct prestera_switch *sw; + struct dma_pool *desc_pool; + struct work_struct tx_work; + struct napi_struct rx_napi; + struct net_device napi_dev; + u32 map_addr; + u64 dma_mask; + /* protect SDMA with concurrent access from multiple CPUs */ + spinlock_t tx_lock; +}; + +struct prestera_rxtx { + struct prestera_sdma sdma; +}; + +static int prestera_sdma_buf_init(struct prestera_sdma *sdma, + struct prestera_sdma_buf *buf) +{ + struct prestera_sdma_desc *desc; + dma_addr_t dma; + + desc = dma_pool_alloc(sdma->desc_pool, GFP_DMA | GFP_KERNEL, &dma); + if (!desc) + return -ENOMEM; + + buf->buf_dma = DMA_MAPPING_ERROR; + buf->desc_dma = dma; + buf->desc = desc; + buf->skb = NULL; + + return 0; +} + +static u32 prestera_sdma_map(struct prestera_sdma *sdma, dma_addr_t pa) +{ + return sdma->map_addr + pa; +} + +static void prestera_sdma_rx_desc_init(struct prestera_sdma *sdma, + struct prestera_sdma_desc *desc, + dma_addr_t buf) +{ + u32 word = le32_to_cpu(desc->word2); + + u32p_replace_bits(&word, PRESTERA_SDMA_BUFF_SIZE_MAX, GENMASK(15, 0)); + desc->word2 = cpu_to_le32(word); + + desc->buff = cpu_to_le32(prestera_sdma_map(sdma, buf)); + + /* make sure buffer is set before reset the descriptor */ + wmb(); + + desc->word1 = cpu_to_le32(0xA0000000); +} + +static void prestera_sdma_rx_desc_set_next(struct prestera_sdma *sdma, + struct prestera_sdma_desc *desc, + dma_addr_t next) +{ + desc->next = cpu_to_le32(prestera_sdma_map(sdma, next)); +} + +static int prestera_sdma_rx_skb_alloc(struct prestera_sdma *sdma, + struct prestera_sdma_buf *buf) +{ + struct device *dev = sdma->sw->dev->dev; + struct sk_buff *skb; + dma_addr_t dma; + + skb = alloc_skb(PRESTERA_SDMA_BUFF_SIZE_MAX, GFP_DMA | GFP_ATOMIC); + if (!skb) + return -ENOMEM; + + dma = dma_map_single(dev, skb->data, skb->len, DMA_FROM_DEVICE); + if (dma_mapping_error(dev, dma)) + goto err_dma_map; + + if (buf->skb) + dma_unmap_single(dev, buf->buf_dma, buf->skb->len, + DMA_FROM_DEVICE); + + buf->buf_dma = dma; + buf->skb = skb; + + return 0; + +err_dma_map: + kfree_skb(skb); + + return -ENOMEM; +} + +static struct sk_buff *prestera_sdma_rx_skb_get(struct prestera_sdma *sdma, + struct prestera_sdma_buf *buf) +{ + dma_addr_t buf_dma = buf->buf_dma; + struct sk_buff *skb = buf->skb; + u32 len = skb->len; + int err; + + err = prestera_sdma_rx_skb_alloc(sdma, buf); + if (err) { + buf->buf_dma = buf_dma; + buf->skb = skb; + + skb = alloc_skb(skb->len, GFP_ATOMIC); + if (skb) { + skb_put(skb, len); + skb_copy_from_linear_data(buf->skb, skb->data, len); + } + } + + prestera_sdma_rx_desc_init(sdma, buf->desc, buf->buf_dma); + + return skb; +} + +static int prestera_rxtx_process_skb(struct prestera_sdma *sdma, + struct sk_buff *skb) +{ + struct prestera_port *port; + struct prestera_dsa dsa; + u32 hw_port, dev_id; + u8 cpu_code; + int err; + + skb_pull(skb, ETH_HLEN); + + /* ethertype field is part of the dsa header */ + err = prestera_dsa_parse(&dsa, skb->data - ETH_TLEN); + if (err) + return err; + + dev_id = dsa.hw_dev_num; + hw_port = dsa.port_num; + + port = prestera_port_find_by_hwid(sdma->sw, dev_id, hw_port); + if (unlikely(!port)) { + dev_warn_ratelimited(prestera_dev(sdma->sw), "received pkt for non-existent port(%u, %u)\n", + dev_id, hw_port); + return -ENOENT; + } + + if (unlikely(!pskb_may_pull(skb, PRESTERA_DSA_HLEN))) + return -EINVAL; + + /* remove DSA tag and update checksum */ + skb_pull_rcsum(skb, PRESTERA_DSA_HLEN); + + memmove(skb->data - ETH_HLEN, skb->data - ETH_HLEN - PRESTERA_DSA_HLEN, + ETH_ALEN * 2); + + skb_push(skb, ETH_HLEN); + + skb->protocol = eth_type_trans(skb, port->dev); + + if (dsa.vlan.is_tagged) { + u16 tci = dsa.vlan.vid & VLAN_VID_MASK; + + tci |= dsa.vlan.vpt << VLAN_PRIO_SHIFT; + if (dsa.vlan.cfi_bit) + tci |= VLAN_CFI_MASK; + + __vlan_hwaccel_put_tag(skb, htons(ETH_P_8021Q), tci); + } + + cpu_code = dsa.cpu_code; + prestera_devlink_trap_report(port, skb, cpu_code); + + return 0; +} + +static int prestera_sdma_next_rx_buf_idx(int buf_idx) +{ + return (buf_idx + 1) % PRESTERA_SDMA_RX_DESC_PER_Q; +} + +static int prestera_sdma_rx_poll(struct napi_struct *napi, int budget) +{ + int qnum = PRESTERA_SDMA_RX_QUEUE_NUM; + unsigned int rxq_done_map = 0; + struct prestera_sdma *sdma; + struct list_head rx_list; + unsigned int qmask; + int pkts_done = 0; + int q; + + qnum = PRESTERA_SDMA_RX_QUEUE_NUM; + qmask = GENMASK(qnum - 1, 0); + + INIT_LIST_HEAD(&rx_list); + + sdma = container_of(napi, struct prestera_sdma, rx_napi); + + while (pkts_done < budget && rxq_done_map != qmask) { + for (q = 0; q < qnum && pkts_done < budget; q++) { + struct prestera_rx_ring *ring = &sdma->rx_ring[q]; + struct prestera_sdma_desc *desc; + struct prestera_sdma_buf *buf; + int buf_idx = ring->next_rx; + struct sk_buff *skb; + + buf = &ring->bufs[buf_idx]; + desc = buf->desc; + + if (PRESTERA_SDMA_RX_DESC_IS_RCVD(desc)) { + rxq_done_map &= ~BIT(q); + } else { + rxq_done_map |= BIT(q); + continue; + } + + pkts_done++; + + __skb_trim(buf->skb, PRESTERA_SDMA_RX_DESC_PKT_LEN(desc)); + + skb = prestera_sdma_rx_skb_get(sdma, buf); + if (!skb) + goto rx_next_buf; + + if (unlikely(prestera_rxtx_process_skb(sdma, skb))) + goto rx_next_buf; + + list_add_tail(&skb->list, &rx_list); +rx_next_buf: + ring->next_rx = prestera_sdma_next_rx_buf_idx(buf_idx); + } + } + + if (pkts_done < budget && napi_complete_done(napi, pkts_done)) + prestera_write(sdma->sw, PRESTERA_SDMA_RX_INTR_MASK_REG, + GENMASK(9, 2)); + + netif_receive_skb_list(&rx_list); + + return pkts_done; +} + +static void prestera_sdma_rx_fini(struct prestera_sdma *sdma) +{ + int qnum = PRESTERA_SDMA_RX_QUEUE_NUM; + int q, b; + + /* disable all rx queues */ + prestera_write(sdma->sw, PRESTERA_SDMA_RX_QUEUE_STATUS_REG, + GENMASK(15, 8)); + + for (q = 0; q < qnum; q++) { + struct prestera_rx_ring *ring = &sdma->rx_ring[q]; + + if (!ring->bufs) + break; + + for (b = 0; b < PRESTERA_SDMA_RX_DESC_PER_Q; b++) { + struct prestera_sdma_buf *buf = &ring->bufs[b]; + + if (buf->desc_dma) + dma_pool_free(sdma->desc_pool, buf->desc, + buf->desc_dma); + + if (!buf->skb) + continue; + + if (buf->buf_dma != DMA_MAPPING_ERROR) + dma_unmap_single(sdma->sw->dev->dev, + buf->buf_dma, buf->skb->len, + DMA_FROM_DEVICE); + kfree_skb(buf->skb); + } + } +} + +static int prestera_sdma_rx_init(struct prestera_sdma *sdma) +{ + int bnum = PRESTERA_SDMA_RX_DESC_PER_Q; + int qnum = PRESTERA_SDMA_RX_QUEUE_NUM; + int err; + int q; + + /* disable all rx queues */ + prestera_write(sdma->sw, PRESTERA_SDMA_RX_QUEUE_STATUS_REG, + GENMASK(15, 8)); + + for (q = 0; q < qnum; q++) { + struct prestera_sdma_buf *head, *tail, *next, *prev; + struct prestera_rx_ring *ring = &sdma->rx_ring[q]; + + ring->bufs = kmalloc_array(bnum, sizeof(*head), GFP_KERNEL); + if (!ring->bufs) + return -ENOMEM; + + ring->next_rx = 0; + + tail = &ring->bufs[bnum - 1]; + head = &ring->bufs[0]; + next = head; + prev = next; + + do { + err = prestera_sdma_buf_init(sdma, next); + if (err) + return err; + + err = prestera_sdma_rx_skb_alloc(sdma, next); + if (err) + return err; + + prestera_sdma_rx_desc_init(sdma, next->desc, + next->buf_dma); + + prestera_sdma_rx_desc_set_next(sdma, prev->desc, + next->desc_dma); + + prev = next; + next++; + } while (prev != tail); + + /* join tail with head to make a circular list */ + prestera_sdma_rx_desc_set_next(sdma, tail->desc, head->desc_dma); + + prestera_write(sdma->sw, PRESTERA_SDMA_RX_QUEUE_DESC_REG(q), + prestera_sdma_map(sdma, head->desc_dma)); + } + + /* make sure all rx descs are filled before enabling all rx queues */ + wmb(); + + prestera_write(sdma->sw, PRESTERA_SDMA_RX_QUEUE_STATUS_REG, + GENMASK(7, 0)); + + return 0; +} + +static void prestera_sdma_tx_desc_init(struct prestera_sdma *sdma, + struct prestera_sdma_desc *desc) +{ + desc->word1 = cpu_to_le32(PRESTERA_SDMA_TX_DESC_INIT); + desc->word2 = 0; +} + +static void prestera_sdma_tx_desc_set_next(struct prestera_sdma *sdma, + struct prestera_sdma_desc *desc, + dma_addr_t next) +{ + desc->next = cpu_to_le32(prestera_sdma_map(sdma, next)); +} + +static void prestera_sdma_tx_desc_set_buf(struct prestera_sdma *sdma, + struct prestera_sdma_desc *desc, + dma_addr_t buf, size_t len) +{ + u32 word = le32_to_cpu(desc->word2); + + u32p_replace_bits(&word, len + ETH_FCS_LEN, GENMASK(30, 16)); + + desc->buff = cpu_to_le32(prestera_sdma_map(sdma, buf)); + desc->word2 = cpu_to_le32(word); +} + +static void prestera_sdma_tx_desc_xmit(struct prestera_sdma_desc *desc) +{ + u32 word = le32_to_cpu(desc->word1); + + word |= PRESTERA_SDMA_TX_DESC_DMA_OWN << 31; + + /* make sure everything is written before enable xmit */ + wmb(); + + desc->word1 = cpu_to_le32(word); +} + +static int prestera_sdma_tx_buf_map(struct prestera_sdma *sdma, + struct prestera_sdma_buf *buf, + struct sk_buff *skb) +{ + struct device *dma_dev = sdma->sw->dev->dev; + dma_addr_t dma; + + dma = dma_map_single(dma_dev, skb->data, skb->len, DMA_TO_DEVICE); + if (dma_mapping_error(dma_dev, dma)) + return -ENOMEM; + + buf->buf_dma = dma; + buf->skb = skb; + + return 0; +} + +static void prestera_sdma_tx_buf_unmap(struct prestera_sdma *sdma, + struct prestera_sdma_buf *buf) +{ + struct device *dma_dev = sdma->sw->dev->dev; + + dma_unmap_single(dma_dev, buf->buf_dma, buf->skb->len, DMA_TO_DEVICE); +} + +static void prestera_sdma_tx_recycle_work_fn(struct work_struct *work) +{ + int bnum = PRESTERA_SDMA_TX_DESC_PER_Q; + struct prestera_tx_ring *tx_ring; + struct prestera_sdma *sdma; + int b; + + sdma = container_of(work, struct prestera_sdma, tx_work); + + tx_ring = &sdma->tx_ring; + + for (b = 0; b < bnum; b++) { + struct prestera_sdma_buf *buf = &tx_ring->bufs[b]; + + if (!buf->is_used) + continue; + + if (!PRESTERA_SDMA_TX_DESC_IS_SENT(buf->desc)) + continue; + + prestera_sdma_tx_buf_unmap(sdma, buf); + dev_consume_skb_any(buf->skb); + buf->skb = NULL; + + /* make sure everything is cleaned up */ + wmb(); + + buf->is_used = false; + } +} + +static int prestera_sdma_tx_init(struct prestera_sdma *sdma) +{ + struct prestera_sdma_buf *head, *tail, *next, *prev; + struct prestera_tx_ring *tx_ring = &sdma->tx_ring; + int bnum = PRESTERA_SDMA_TX_DESC_PER_Q; + int err; + + INIT_WORK(&sdma->tx_work, prestera_sdma_tx_recycle_work_fn); + spin_lock_init(&sdma->tx_lock); + + tx_ring->bufs = kmalloc_array(bnum, sizeof(*head), GFP_KERNEL); + if (!tx_ring->bufs) + return -ENOMEM; + + tail = &tx_ring->bufs[bnum - 1]; + head = &tx_ring->bufs[0]; + next = head; + prev = next; + + tx_ring->max_burst = PRESTERA_SDMA_TX_MAX_BURST; + tx_ring->burst = tx_ring->max_burst; + tx_ring->next_tx = 0; + + do { + err = prestera_sdma_buf_init(sdma, next); + if (err) + return err; + + next->is_used = false; + + prestera_sdma_tx_desc_init(sdma, next->desc); + + prestera_sdma_tx_desc_set_next(sdma, prev->desc, + next->desc_dma); + + prev = next; + next++; + } while (prev != tail); + + /* join tail with head to make a circular list */ + prestera_sdma_tx_desc_set_next(sdma, tail->desc, head->desc_dma); + + /* make sure descriptors are written */ + wmb(); + + prestera_write(sdma->sw, PRESTERA_SDMA_TX_QUEUE_DESC_REG, + prestera_sdma_map(sdma, head->desc_dma)); + + return 0; +} + +static void prestera_sdma_tx_fini(struct prestera_sdma *sdma) +{ + struct prestera_tx_ring *ring = &sdma->tx_ring; + int bnum = PRESTERA_SDMA_TX_DESC_PER_Q; + int b; + + cancel_work_sync(&sdma->tx_work); + + if (!ring->bufs) + return; + + for (b = 0; b < bnum; b++) { + struct prestera_sdma_buf *buf = &ring->bufs[b]; + + if (buf->desc) + dma_pool_free(sdma->desc_pool, buf->desc, + buf->desc_dma); + + if (!buf->skb) + continue; + + dma_unmap_single(sdma->sw->dev->dev, buf->buf_dma, + buf->skb->len, DMA_TO_DEVICE); + + dev_consume_skb_any(buf->skb); + } +} + +static void prestera_rxtx_handle_event(struct prestera_switch *sw, + struct prestera_event *evt, + void *arg) +{ + struct prestera_sdma *sdma = arg; + + if (evt->id != PRESTERA_RXTX_EVENT_RCV_PKT) + return; + + prestera_write(sdma->sw, PRESTERA_SDMA_RX_INTR_MASK_REG, 0); + napi_schedule(&sdma->rx_napi); +} + +static int prestera_sdma_switch_init(struct prestera_switch *sw) +{ + struct prestera_sdma *sdma = &sw->rxtx->sdma; + struct device *dev = sw->dev->dev; + struct prestera_rxtx_params p; + int err; + + p.use_sdma = true; + + err = prestera_hw_rxtx_init(sw, &p); + if (err) { + dev_err(dev, "failed to init rxtx by hw\n"); + return err; + } + + sdma->dma_mask = dma_get_mask(dev); + sdma->map_addr = p.map_addr; + sdma->sw = sw; + + sdma->desc_pool = dma_pool_create("desc_pool", dev, + sizeof(struct prestera_sdma_desc), + 16, 0); + if (!sdma->desc_pool) + return -ENOMEM; + + err = prestera_sdma_rx_init(sdma); + if (err) { + dev_err(dev, "failed to init rx ring\n"); + goto err_rx_init; + } + + err = prestera_sdma_tx_init(sdma); + if (err) { + dev_err(dev, "failed to init tx ring\n"); + goto err_tx_init; + } + + err = prestera_hw_event_handler_register(sw, PRESTERA_EVENT_TYPE_RXTX, + prestera_rxtx_handle_event, + sdma); + if (err) + goto err_evt_register; + + init_dummy_netdev(&sdma->napi_dev); + + netif_napi_add(&sdma->napi_dev, &sdma->rx_napi, prestera_sdma_rx_poll); + napi_enable(&sdma->rx_napi); + + return 0; + +err_evt_register: +err_tx_init: + prestera_sdma_tx_fini(sdma); +err_rx_init: + prestera_sdma_rx_fini(sdma); + + dma_pool_destroy(sdma->desc_pool); + return err; +} + +static void prestera_sdma_switch_fini(struct prestera_switch *sw) +{ + struct prestera_sdma *sdma = &sw->rxtx->sdma; + + napi_disable(&sdma->rx_napi); + netif_napi_del(&sdma->rx_napi); + prestera_hw_event_handler_unregister(sw, PRESTERA_EVENT_TYPE_RXTX, + prestera_rxtx_handle_event); + prestera_sdma_tx_fini(sdma); + prestera_sdma_rx_fini(sdma); + dma_pool_destroy(sdma->desc_pool); +} + +static bool prestera_sdma_is_ready(struct prestera_sdma *sdma) +{ + return !(prestera_read(sdma->sw, PRESTERA_SDMA_TX_QUEUE_START_REG) & 1); +} + +static int prestera_sdma_tx_wait(struct prestera_sdma *sdma, + struct prestera_tx_ring *tx_ring) +{ + int tx_wait_num = PRESTERA_SDMA_WAIT_MUL * tx_ring->max_burst; + + do { + if (prestera_sdma_is_ready(sdma)) + return 0; + + udelay(1); + } while (--tx_wait_num); + + return -EBUSY; +} + +static void prestera_sdma_tx_start(struct prestera_sdma *sdma) +{ + prestera_write(sdma->sw, PRESTERA_SDMA_TX_QUEUE_START_REG, 1); + schedule_work(&sdma->tx_work); +} + +static netdev_tx_t prestera_sdma_xmit(struct prestera_sdma *sdma, + struct sk_buff *skb) +{ + struct device *dma_dev = sdma->sw->dev->dev; + struct net_device *dev = skb->dev; + struct prestera_tx_ring *tx_ring; + struct prestera_sdma_buf *buf; + int err; + + spin_lock(&sdma->tx_lock); + + tx_ring = &sdma->tx_ring; + + buf = &tx_ring->bufs[tx_ring->next_tx]; + if (buf->is_used) { + schedule_work(&sdma->tx_work); + goto drop_skb; + } + + if (unlikely(eth_skb_pad(skb))) + goto drop_skb_nofree; + + err = prestera_sdma_tx_buf_map(sdma, buf, skb); + if (err) + goto drop_skb; + + prestera_sdma_tx_desc_set_buf(sdma, buf->desc, buf->buf_dma, skb->len); + + dma_sync_single_for_device(dma_dev, buf->buf_dma, skb->len, + DMA_TO_DEVICE); + + if (tx_ring->burst) { + tx_ring->burst--; + } else { + tx_ring->burst = tx_ring->max_burst; + + err = prestera_sdma_tx_wait(sdma, tx_ring); + if (err) + goto drop_skb_unmap; + } + + tx_ring->next_tx = (tx_ring->next_tx + 1) % PRESTERA_SDMA_TX_DESC_PER_Q; + prestera_sdma_tx_desc_xmit(buf->desc); + buf->is_used = true; + + prestera_sdma_tx_start(sdma); + + goto tx_done; + +drop_skb_unmap: + prestera_sdma_tx_buf_unmap(sdma, buf); +drop_skb: + dev_consume_skb_any(skb); +drop_skb_nofree: + dev->stats.tx_dropped++; +tx_done: + spin_unlock(&sdma->tx_lock); + return NETDEV_TX_OK; +} + +int prestera_rxtx_switch_init(struct prestera_switch *sw) +{ + struct prestera_rxtx *rxtx; + int err; + + rxtx = kzalloc(sizeof(*rxtx), GFP_KERNEL); + if (!rxtx) + return -ENOMEM; + + sw->rxtx = rxtx; + + err = prestera_sdma_switch_init(sw); + if (err) + kfree(rxtx); + + return err; +} + +void prestera_rxtx_switch_fini(struct prestera_switch *sw) +{ + prestera_sdma_switch_fini(sw); + kfree(sw->rxtx); +} + +int prestera_rxtx_port_init(struct prestera_port *port) +{ + port->dev->needed_headroom = PRESTERA_DSA_HLEN; + return 0; +} + +netdev_tx_t prestera_rxtx_xmit(struct prestera_port *port, struct sk_buff *skb) +{ + struct prestera_dsa dsa; + + dsa.hw_dev_num = port->dev_id; + dsa.port_num = port->hw_id; + + if (skb_cow_head(skb, PRESTERA_DSA_HLEN) < 0) + return NET_XMIT_DROP; + + skb_push(skb, PRESTERA_DSA_HLEN); + memmove(skb->data, skb->data + PRESTERA_DSA_HLEN, 2 * ETH_ALEN); + + if (prestera_dsa_build(&dsa, skb->data + 2 * ETH_ALEN) != 0) + return NET_XMIT_DROP; + + return prestera_sdma_xmit(&port->sw->rxtx->sdma, skb); +} diff --git a/drivers/net/ethernet/marvell/prestera/prestera_rxtx.h b/drivers/net/ethernet/marvell/prestera/prestera_rxtx.h new file mode 100644 index 000000000..882a1225c --- /dev/null +++ b/drivers/net/ethernet/marvell/prestera/prestera_rxtx.h @@ -0,0 +1,19 @@ +/* SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0 */ +/* Copyright (c) 2019-2020 Marvell International Ltd. All rights reserved. */ + +#ifndef _PRESTERA_RXTX_H_ +#define _PRESTERA_RXTX_H_ + +#include <linux/netdevice.h> + +struct prestera_switch; +struct prestera_port; + +int prestera_rxtx_switch_init(struct prestera_switch *sw); +void prestera_rxtx_switch_fini(struct prestera_switch *sw); + +int prestera_rxtx_port_init(struct prestera_port *port); + +netdev_tx_t prestera_rxtx_xmit(struct prestera_port *port, struct sk_buff *skb); + +#endif /* _PRESTERA_RXTX_H_ */ diff --git a/drivers/net/ethernet/marvell/prestera/prestera_span.c b/drivers/net/ethernet/marvell/prestera/prestera_span.c new file mode 100644 index 000000000..1005182ce --- /dev/null +++ b/drivers/net/ethernet/marvell/prestera/prestera_span.c @@ -0,0 +1,191 @@ +// SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0 +/* Copyright (c) 2020 Marvell International Ltd. All rights reserved */ + +#include <linux/kernel.h> +#include <linux/list.h> + +#include "prestera.h" +#include "prestera_hw.h" +#include "prestera_acl.h" +#include "prestera_flow.h" +#include "prestera_span.h" + +struct prestera_span_entry { + struct list_head list; + struct prestera_port *port; + refcount_t ref_count; + u8 id; +}; + +struct prestera_span { + struct prestera_switch *sw; + struct list_head entries; +}; + +static struct prestera_span_entry * +prestera_span_entry_create(struct prestera_port *port, u8 span_id) +{ + struct prestera_span_entry *entry; + + entry = kzalloc(sizeof(*entry), GFP_KERNEL); + if (!entry) + return ERR_PTR(-ENOMEM); + + refcount_set(&entry->ref_count, 1); + entry->port = port; + entry->id = span_id; + list_add_tail(&entry->list, &port->sw->span->entries); + + return entry; +} + +static void prestera_span_entry_del(struct prestera_span_entry *entry) +{ + list_del(&entry->list); + kfree(entry); +} + +static struct prestera_span_entry * +prestera_span_entry_find_by_id(struct prestera_span *span, u8 span_id) +{ + struct prestera_span_entry *entry; + + list_for_each_entry(entry, &span->entries, list) { + if (entry->id == span_id) + return entry; + } + + return NULL; +} + +static struct prestera_span_entry * +prestera_span_entry_find_by_port(struct prestera_span *span, + struct prestera_port *port) +{ + struct prestera_span_entry *entry; + + list_for_each_entry(entry, &span->entries, list) { + if (entry->port == port) + return entry; + } + + return NULL; +} + +static int prestera_span_get(struct prestera_port *port, u8 *span_id) +{ + u8 new_span_id; + struct prestera_switch *sw = port->sw; + struct prestera_span_entry *entry; + int err; + + entry = prestera_span_entry_find_by_port(sw->span, port); + if (entry) { + refcount_inc(&entry->ref_count); + *span_id = entry->id; + return 0; + } + + err = prestera_hw_span_get(port, &new_span_id); + if (err) + return err; + + entry = prestera_span_entry_create(port, new_span_id); + if (IS_ERR(entry)) { + prestera_hw_span_release(sw, new_span_id); + return PTR_ERR(entry); + } + + *span_id = new_span_id; + return 0; +} + +static int prestera_span_put(struct prestera_switch *sw, u8 span_id) +{ + struct prestera_span_entry *entry; + int err; + + entry = prestera_span_entry_find_by_id(sw->span, span_id); + if (!entry) + return -ENOENT; + + if (!refcount_dec_and_test(&entry->ref_count)) + return 0; + + err = prestera_hw_span_release(sw, span_id); + if (err) + return err; + + prestera_span_entry_del(entry); + return 0; +} + +int prestera_span_rule_add(struct prestera_flow_block_binding *binding, + struct prestera_port *to_port, + bool ingress) +{ + struct prestera_switch *sw = binding->port->sw; + u8 span_id; + int err; + + if (binding->span_id != PRESTERA_SPAN_INVALID_ID) + /* port already in mirroring */ + return -EEXIST; + + err = prestera_span_get(to_port, &span_id); + if (err) + return err; + + err = prestera_hw_span_bind(binding->port, span_id, ingress); + if (err) { + prestera_span_put(sw, span_id); + return err; + } + + binding->span_id = span_id; + return 0; +} + +int prestera_span_rule_del(struct prestera_flow_block_binding *binding, + bool ingress) +{ + int err; + + if (binding->span_id == PRESTERA_SPAN_INVALID_ID) + return -ENOENT; + + err = prestera_hw_span_unbind(binding->port, ingress); + if (err) + return err; + + err = prestera_span_put(binding->port->sw, binding->span_id); + if (err) + return err; + + binding->span_id = PRESTERA_SPAN_INVALID_ID; + return 0; +} + +int prestera_span_init(struct prestera_switch *sw) +{ + struct prestera_span *span; + + span = kzalloc(sizeof(*span), GFP_KERNEL); + if (!span) + return -ENOMEM; + + INIT_LIST_HEAD(&span->entries); + + sw->span = span; + span->sw = sw; + + return 0; +} + +void prestera_span_fini(struct prestera_switch *sw) +{ + struct prestera_span *span = sw->span; + + WARN_ON(!list_empty(&span->entries)); + kfree(span); +} diff --git a/drivers/net/ethernet/marvell/prestera/prestera_span.h b/drivers/net/ethernet/marvell/prestera/prestera_span.h new file mode 100644 index 000000000..493b68524 --- /dev/null +++ b/drivers/net/ethernet/marvell/prestera/prestera_span.h @@ -0,0 +1,24 @@ +/* SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0 */ +/* Copyright (c) 2019-2020 Marvell International Ltd. All rights reserved. */ + +#ifndef _PRESTERA_SPAN_H_ +#define _PRESTERA_SPAN_H_ + +#include <net/pkt_cls.h> + +#define PRESTERA_SPAN_INVALID_ID -1 + +struct prestera_port; +struct prestera_switch; +struct prestera_flow_block_binding; + +int prestera_span_init(struct prestera_switch *sw); +void prestera_span_fini(struct prestera_switch *sw); + +int prestera_span_rule_add(struct prestera_flow_block_binding *binding, + struct prestera_port *to_port, + bool ingress); +int prestera_span_rule_del(struct prestera_flow_block_binding *binding, + bool ingress); + +#endif /* _PRESTERA_SPAN_H_ */ diff --git a/drivers/net/ethernet/marvell/prestera/prestera_switchdev.c b/drivers/net/ethernet/marvell/prestera/prestera_switchdev.c new file mode 100644 index 000000000..e548cd325 --- /dev/null +++ b/drivers/net/ethernet/marvell/prestera/prestera_switchdev.c @@ -0,0 +1,1918 @@ +// SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0 +/* Copyright (c) 2019-2020 Marvell International Ltd. All rights reserved */ + +#include <linux/if_bridge.h> +#include <linux/if_vlan.h> +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/notifier.h> +#include <net/netevent.h> +#include <net/switchdev.h> + +#include "prestera.h" +#include "prestera_hw.h" +#include "prestera_switchdev.h" + +#define PRESTERA_VID_ALL (0xffff) + +#define PRESTERA_DEFAULT_AGEING_TIME_MS 300000 +#define PRESTERA_MAX_AGEING_TIME_MS 1000000000 +#define PRESTERA_MIN_AGEING_TIME_MS 32000 + +struct prestera_fdb_event_work { + struct work_struct work; + struct switchdev_notifier_fdb_info fdb_info; + struct net_device *dev; + unsigned long event; +}; + +struct prestera_switchdev { + struct prestera_switch *sw; + struct list_head bridge_list; + bool bridge_8021q_exists; + struct notifier_block swdev_nb_blk; + struct notifier_block swdev_nb; +}; + +struct prestera_bridge { + struct list_head head; + struct net_device *dev; + struct prestera_switchdev *swdev; + struct list_head port_list; + struct list_head br_mdb_entry_list; + bool mrouter_exist; + bool vlan_enabled; + bool multicast_enabled; + u16 bridge_id; +}; + +struct prestera_bridge_port { + struct list_head head; + struct net_device *dev; + struct prestera_bridge *bridge; + struct list_head vlan_list; + struct list_head br_mdb_port_list; + refcount_t ref_count; + unsigned long flags; + bool mrouter; + u8 stp_state; +}; + +struct prestera_bridge_vlan { + struct list_head head; + struct list_head port_vlan_list; + u16 vid; +}; + +struct prestera_port_vlan { + struct list_head br_vlan_head; + struct list_head port_head; + struct prestera_port *port; + struct prestera_bridge_port *br_port; + u16 vid; +}; + +struct prestera_br_mdb_port { + struct prestera_bridge_port *br_port; + struct list_head br_mdb_port_node; +}; + +/* Software representation of MDB table. */ +struct prestera_br_mdb_entry { + struct prestera_bridge *bridge; + struct prestera_mdb_entry *mdb; + struct list_head br_mdb_port_list; + struct list_head br_mdb_entry_node; + bool enabled; +}; + +static struct workqueue_struct *swdev_wq; + +static void prestera_bridge_port_put(struct prestera_bridge_port *br_port); + +static int prestera_port_vid_stp_set(struct prestera_port *port, u16 vid, + u8 state); + +static struct prestera_bridge * +prestera_bridge_find(const struct prestera_switch *sw, + const struct net_device *br_dev) +{ + struct prestera_bridge *bridge; + + list_for_each_entry(bridge, &sw->swdev->bridge_list, head) + if (bridge->dev == br_dev) + return bridge; + + return NULL; +} + +static struct prestera_bridge_port * +__prestera_bridge_port_find(const struct prestera_bridge *bridge, + const struct net_device *brport_dev) +{ + struct prestera_bridge_port *br_port; + + list_for_each_entry(br_port, &bridge->port_list, head) + if (br_port->dev == brport_dev) + return br_port; + + return NULL; +} + +static struct prestera_bridge_port * +prestera_bridge_port_find(struct prestera_switch *sw, + struct net_device *brport_dev) +{ + struct net_device *br_dev = netdev_master_upper_dev_get(brport_dev); + struct prestera_bridge *bridge; + + if (!br_dev) + return NULL; + + bridge = prestera_bridge_find(sw, br_dev); + if (!bridge) + return NULL; + + return __prestera_bridge_port_find(bridge, brport_dev); +} + +static void +prestera_br_port_flags_reset(struct prestera_bridge_port *br_port, + struct prestera_port *port) +{ + prestera_port_uc_flood_set(port, false); + prestera_port_mc_flood_set(port, false); + prestera_port_learning_set(port, false); + prestera_port_br_locked_set(port, false); +} + +static int prestera_br_port_flags_set(struct prestera_bridge_port *br_port, + struct prestera_port *port) +{ + int err; + + err = prestera_port_uc_flood_set(port, br_port->flags & BR_FLOOD); + if (err) + goto err_out; + + err = prestera_port_mc_flood_set(port, br_port->flags & BR_MCAST_FLOOD); + if (err) + goto err_out; + + err = prestera_port_learning_set(port, br_port->flags & BR_LEARNING); + if (err) + goto err_out; + + err = prestera_port_br_locked_set(port, + br_port->flags & BR_PORT_LOCKED); + if (err) + goto err_out; + + return 0; + +err_out: + prestera_br_port_flags_reset(br_port, port); + return err; +} + +static struct prestera_bridge_vlan * +prestera_bridge_vlan_create(struct prestera_bridge_port *br_port, u16 vid) +{ + struct prestera_bridge_vlan *br_vlan; + + br_vlan = kzalloc(sizeof(*br_vlan), GFP_KERNEL); + if (!br_vlan) + return NULL; + + INIT_LIST_HEAD(&br_vlan->port_vlan_list); + br_vlan->vid = vid; + list_add(&br_vlan->head, &br_port->vlan_list); + + return br_vlan; +} + +static void prestera_bridge_vlan_destroy(struct prestera_bridge_vlan *br_vlan) +{ + list_del(&br_vlan->head); + WARN_ON(!list_empty(&br_vlan->port_vlan_list)); + kfree(br_vlan); +} + +static struct prestera_bridge_vlan * +prestera_bridge_vlan_by_vid(struct prestera_bridge_port *br_port, u16 vid) +{ + struct prestera_bridge_vlan *br_vlan; + + list_for_each_entry(br_vlan, &br_port->vlan_list, head) { + if (br_vlan->vid == vid) + return br_vlan; + } + + return NULL; +} + +static int prestera_bridge_vlan_port_count(struct prestera_bridge *bridge, + u16 vid) +{ + struct prestera_bridge_port *br_port; + struct prestera_bridge_vlan *br_vlan; + int count = 0; + + list_for_each_entry(br_port, &bridge->port_list, head) { + list_for_each_entry(br_vlan, &br_port->vlan_list, head) { + if (br_vlan->vid == vid) { + count += 1; + break; + } + } + } + + return count; +} + +static void prestera_bridge_vlan_put(struct prestera_bridge_vlan *br_vlan) +{ + if (list_empty(&br_vlan->port_vlan_list)) + prestera_bridge_vlan_destroy(br_vlan); +} + +static struct prestera_port_vlan * +prestera_port_vlan_by_vid(struct prestera_port *port, u16 vid) +{ + struct prestera_port_vlan *port_vlan; + + list_for_each_entry(port_vlan, &port->vlans_list, port_head) { + if (port_vlan->vid == vid) + return port_vlan; + } + + return NULL; +} + +static struct prestera_port_vlan * +prestera_port_vlan_create(struct prestera_port *port, u16 vid, bool untagged) +{ + struct prestera_port_vlan *port_vlan; + int err; + + port_vlan = prestera_port_vlan_by_vid(port, vid); + if (port_vlan) + return ERR_PTR(-EEXIST); + + err = prestera_hw_vlan_port_set(port, vid, true, untagged); + if (err) + return ERR_PTR(err); + + port_vlan = kzalloc(sizeof(*port_vlan), GFP_KERNEL); + if (!port_vlan) { + err = -ENOMEM; + goto err_port_vlan_alloc; + } + + port_vlan->port = port; + port_vlan->vid = vid; + + list_add(&port_vlan->port_head, &port->vlans_list); + + return port_vlan; + +err_port_vlan_alloc: + prestera_hw_vlan_port_set(port, vid, false, false); + return ERR_PTR(err); +} + +static int prestera_fdb_add(struct prestera_port *port, + const unsigned char *mac, u16 vid, bool dynamic) +{ + if (prestera_port_is_lag_member(port)) + return prestera_hw_lag_fdb_add(port->sw, prestera_port_lag_id(port), + mac, vid, dynamic); + + return prestera_hw_fdb_add(port, mac, vid, dynamic); +} + +static int prestera_fdb_del(struct prestera_port *port, + const unsigned char *mac, u16 vid) +{ + if (prestera_port_is_lag_member(port)) + return prestera_hw_lag_fdb_del(port->sw, prestera_port_lag_id(port), + mac, vid); + else + return prestera_hw_fdb_del(port, mac, vid); +} + +static int prestera_fdb_flush_port_vlan(struct prestera_port *port, u16 vid, + u32 mode) +{ + if (prestera_port_is_lag_member(port)) + return prestera_hw_fdb_flush_lag_vlan(port->sw, prestera_port_lag_id(port), + vid, mode); + else + return prestera_hw_fdb_flush_port_vlan(port, vid, mode); +} + +static int prestera_fdb_flush_port(struct prestera_port *port, u32 mode) +{ + if (prestera_port_is_lag_member(port)) + return prestera_hw_fdb_flush_lag(port->sw, prestera_port_lag_id(port), + mode); + else + return prestera_hw_fdb_flush_port(port, mode); +} + +static void +prestera_mdb_port_del(struct prestera_mdb_entry *mdb, + struct net_device *orig_dev) +{ + struct prestera_flood_domain *fl_domain = mdb->flood_domain; + struct prestera_flood_domain_port *flood_domain_port; + + flood_domain_port = prestera_flood_domain_port_find(fl_domain, + orig_dev, + mdb->vid); + if (flood_domain_port) + prestera_flood_domain_port_destroy(flood_domain_port); +} + +static void +prestera_br_mdb_entry_put(struct prestera_br_mdb_entry *br_mdb) +{ + struct prestera_bridge_port *br_port; + + if (list_empty(&br_mdb->br_mdb_port_list)) { + list_for_each_entry(br_port, &br_mdb->bridge->port_list, head) + prestera_mdb_port_del(br_mdb->mdb, br_port->dev); + + prestera_mdb_entry_destroy(br_mdb->mdb); + list_del(&br_mdb->br_mdb_entry_node); + kfree(br_mdb); + } +} + +static void +prestera_br_mdb_port_del(struct prestera_br_mdb_entry *br_mdb, + struct prestera_bridge_port *br_port) +{ + struct prestera_br_mdb_port *br_mdb_port, *tmp; + + list_for_each_entry_safe(br_mdb_port, tmp, &br_mdb->br_mdb_port_list, + br_mdb_port_node) { + if (br_mdb_port->br_port == br_port) { + list_del(&br_mdb_port->br_mdb_port_node); + kfree(br_mdb_port); + } + } +} + +static void +prestera_mdb_flush_bridge_port(struct prestera_bridge_port *br_port) +{ + struct prestera_br_mdb_port *br_mdb_port, *tmp_port; + struct prestera_br_mdb_entry *br_mdb, *br_mdb_tmp; + struct prestera_bridge *br_dev = br_port->bridge; + + list_for_each_entry_safe(br_mdb, br_mdb_tmp, &br_dev->br_mdb_entry_list, + br_mdb_entry_node) { + list_for_each_entry_safe(br_mdb_port, tmp_port, + &br_mdb->br_mdb_port_list, + br_mdb_port_node) { + prestera_mdb_port_del(br_mdb->mdb, + br_mdb_port->br_port->dev); + prestera_br_mdb_port_del(br_mdb, br_mdb_port->br_port); + } + prestera_br_mdb_entry_put(br_mdb); + } +} + +static void +prestera_port_vlan_bridge_leave(struct prestera_port_vlan *port_vlan) +{ + u32 fdb_flush_mode = PRESTERA_FDB_FLUSH_MODE_DYNAMIC; + struct prestera_port *port = port_vlan->port; + struct prestera_bridge_vlan *br_vlan; + struct prestera_bridge_port *br_port; + bool last_port, last_vlan; + u16 vid = port_vlan->vid; + int port_count; + + br_port = port_vlan->br_port; + port_count = prestera_bridge_vlan_port_count(br_port->bridge, vid); + br_vlan = prestera_bridge_vlan_by_vid(br_port, vid); + + last_vlan = list_is_singular(&br_port->vlan_list); + last_port = port_count == 1; + + if (last_vlan) + prestera_fdb_flush_port(port, fdb_flush_mode); + else if (last_port) + prestera_hw_fdb_flush_vlan(port->sw, vid, fdb_flush_mode); + else + prestera_fdb_flush_port_vlan(port, vid, fdb_flush_mode); + + prestera_mdb_flush_bridge_port(br_port); + + list_del(&port_vlan->br_vlan_head); + prestera_bridge_vlan_put(br_vlan); + prestera_bridge_port_put(br_port); + port_vlan->br_port = NULL; +} + +static void prestera_port_vlan_destroy(struct prestera_port_vlan *port_vlan) +{ + struct prestera_port *port = port_vlan->port; + u16 vid = port_vlan->vid; + + if (port_vlan->br_port) + prestera_port_vlan_bridge_leave(port_vlan); + + prestera_hw_vlan_port_set(port, vid, false, false); + list_del(&port_vlan->port_head); + kfree(port_vlan); +} + +static struct prestera_bridge * +prestera_bridge_create(struct prestera_switchdev *swdev, struct net_device *dev) +{ + bool vlan_enabled = br_vlan_enabled(dev); + struct prestera_bridge *bridge; + u16 bridge_id; + int err; + + if (vlan_enabled && swdev->bridge_8021q_exists) { + netdev_err(dev, "Only one VLAN-aware bridge is supported\n"); + return ERR_PTR(-EINVAL); + } + + bridge = kzalloc(sizeof(*bridge), GFP_KERNEL); + if (!bridge) + return ERR_PTR(-ENOMEM); + + if (vlan_enabled) { + swdev->bridge_8021q_exists = true; + } else { + err = prestera_hw_bridge_create(swdev->sw, &bridge_id); + if (err) { + kfree(bridge); + return ERR_PTR(err); + } + + bridge->bridge_id = bridge_id; + } + + bridge->vlan_enabled = vlan_enabled; + bridge->swdev = swdev; + bridge->dev = dev; + bridge->multicast_enabled = br_multicast_enabled(dev); + + INIT_LIST_HEAD(&bridge->port_list); + INIT_LIST_HEAD(&bridge->br_mdb_entry_list); + + list_add(&bridge->head, &swdev->bridge_list); + + return bridge; +} + +static void prestera_bridge_destroy(struct prestera_bridge *bridge) +{ + struct prestera_switchdev *swdev = bridge->swdev; + + list_del(&bridge->head); + + if (bridge->vlan_enabled) + swdev->bridge_8021q_exists = false; + else + prestera_hw_bridge_delete(swdev->sw, bridge->bridge_id); + + WARN_ON(!list_empty(&bridge->br_mdb_entry_list)); + WARN_ON(!list_empty(&bridge->port_list)); + kfree(bridge); +} + +static void prestera_bridge_put(struct prestera_bridge *bridge) +{ + if (list_empty(&bridge->port_list)) + prestera_bridge_destroy(bridge); +} + +static +struct prestera_bridge *prestera_bridge_by_dev(struct prestera_switchdev *swdev, + const struct net_device *dev) +{ + struct prestera_bridge *bridge; + + list_for_each_entry(bridge, &swdev->bridge_list, head) + if (bridge->dev == dev) + return bridge; + + return NULL; +} + +static struct prestera_bridge_port * +__prestera_bridge_port_by_dev(struct prestera_bridge *bridge, + struct net_device *dev) +{ + struct prestera_bridge_port *br_port; + + list_for_each_entry(br_port, &bridge->port_list, head) { + if (br_port->dev == dev) + return br_port; + } + + return NULL; +} + +static int prestera_match_upper_bridge_dev(struct net_device *dev, + struct netdev_nested_priv *priv) +{ + if (netif_is_bridge_master(dev)) + priv->data = dev; + + return 0; +} + +static struct net_device *prestera_get_upper_bridge_dev(struct net_device *dev) +{ + struct netdev_nested_priv priv = { }; + + netdev_walk_all_upper_dev_rcu(dev, prestera_match_upper_bridge_dev, + &priv); + return priv.data; +} + +static struct prestera_bridge_port * +prestera_bridge_port_by_dev(struct prestera_switchdev *swdev, + struct net_device *dev) +{ + struct net_device *br_dev = prestera_get_upper_bridge_dev(dev); + struct prestera_bridge *bridge; + + if (!br_dev) + return NULL; + + bridge = prestera_bridge_by_dev(swdev, br_dev); + if (!bridge) + return NULL; + + return __prestera_bridge_port_by_dev(bridge, dev); +} + +static struct prestera_bridge_port * +prestera_bridge_port_create(struct prestera_bridge *bridge, + struct net_device *dev) +{ + struct prestera_bridge_port *br_port; + + br_port = kzalloc(sizeof(*br_port), GFP_KERNEL); + if (!br_port) + return NULL; + + br_port->flags = BR_LEARNING | BR_FLOOD | BR_LEARNING_SYNC | + BR_MCAST_FLOOD; + br_port->stp_state = BR_STATE_DISABLED; + refcount_set(&br_port->ref_count, 1); + br_port->bridge = bridge; + br_port->dev = dev; + + INIT_LIST_HEAD(&br_port->vlan_list); + list_add(&br_port->head, &bridge->port_list); + INIT_LIST_HEAD(&br_port->br_mdb_port_list); + + return br_port; +} + +static void +prestera_bridge_port_destroy(struct prestera_bridge_port *br_port) +{ + list_del(&br_port->head); + WARN_ON(!list_empty(&br_port->vlan_list)); + WARN_ON(!list_empty(&br_port->br_mdb_port_list)); + kfree(br_port); +} + +static void prestera_bridge_port_get(struct prestera_bridge_port *br_port) +{ + refcount_inc(&br_port->ref_count); +} + +static void prestera_bridge_port_put(struct prestera_bridge_port *br_port) +{ + struct prestera_bridge *bridge = br_port->bridge; + + if (refcount_dec_and_test(&br_port->ref_count)) { + prestera_bridge_port_destroy(br_port); + prestera_bridge_put(bridge); + } +} + +static struct prestera_bridge_port * +prestera_bridge_port_add(struct prestera_bridge *bridge, struct net_device *dev) +{ + struct prestera_bridge_port *br_port; + + br_port = __prestera_bridge_port_by_dev(bridge, dev); + if (br_port) { + prestera_bridge_port_get(br_port); + return br_port; + } + + br_port = prestera_bridge_port_create(bridge, dev); + if (!br_port) + return ERR_PTR(-ENOMEM); + + return br_port; +} + +static int +prestera_bridge_1d_port_join(struct prestera_bridge_port *br_port) +{ + struct prestera_port *port = netdev_priv(br_port->dev); + struct prestera_bridge *bridge = br_port->bridge; + int err; + + err = prestera_hw_bridge_port_add(port, bridge->bridge_id); + if (err) + return err; + + err = prestera_br_port_flags_set(br_port, port); + if (err) + goto err_flags2port_set; + + return 0; + +err_flags2port_set: + prestera_hw_bridge_port_delete(port, bridge->bridge_id); + + return err; +} + +int prestera_bridge_port_join(struct net_device *br_dev, + struct prestera_port *port, + struct netlink_ext_ack *extack) +{ + struct prestera_switchdev *swdev = port->sw->swdev; + struct prestera_bridge_port *br_port; + struct prestera_bridge *bridge; + int err; + + bridge = prestera_bridge_by_dev(swdev, br_dev); + if (!bridge) { + bridge = prestera_bridge_create(swdev, br_dev); + if (IS_ERR(bridge)) + return PTR_ERR(bridge); + } + + br_port = prestera_bridge_port_add(bridge, port->dev); + if (IS_ERR(br_port)) { + prestera_bridge_put(bridge); + return PTR_ERR(br_port); + } + + err = switchdev_bridge_port_offload(br_port->dev, port->dev, NULL, + NULL, NULL, false, extack); + if (err) + goto err_switchdev_offload; + + if (bridge->vlan_enabled) + return 0; + + err = prestera_bridge_1d_port_join(br_port); + if (err) + goto err_port_join; + + return 0; + +err_port_join: + switchdev_bridge_port_unoffload(br_port->dev, NULL, NULL, NULL); +err_switchdev_offload: + prestera_bridge_port_put(br_port); + return err; +} + +static void prestera_bridge_1q_port_leave(struct prestera_bridge_port *br_port) +{ + struct prestera_port *port = netdev_priv(br_port->dev); + + prestera_hw_fdb_flush_port(port, PRESTERA_FDB_FLUSH_MODE_ALL); + prestera_port_pvid_set(port, PRESTERA_DEFAULT_VID); +} + +static void prestera_bridge_1d_port_leave(struct prestera_bridge_port *br_port) +{ + struct prestera_port *port = netdev_priv(br_port->dev); + + prestera_hw_fdb_flush_port(port, PRESTERA_FDB_FLUSH_MODE_ALL); + prestera_hw_bridge_port_delete(port, br_port->bridge->bridge_id); +} + +static int prestera_port_vid_stp_set(struct prestera_port *port, u16 vid, + u8 state) +{ + u8 hw_state = state; + + switch (state) { + case BR_STATE_DISABLED: + hw_state = PRESTERA_STP_DISABLED; + break; + + case BR_STATE_BLOCKING: + case BR_STATE_LISTENING: + hw_state = PRESTERA_STP_BLOCK_LISTEN; + break; + + case BR_STATE_LEARNING: + hw_state = PRESTERA_STP_LEARN; + break; + + case BR_STATE_FORWARDING: + hw_state = PRESTERA_STP_FORWARD; + break; + + default: + return -EINVAL; + } + + return prestera_hw_vlan_port_stp_set(port, vid, hw_state); +} + +void prestera_bridge_port_leave(struct net_device *br_dev, + struct prestera_port *port) +{ + struct prestera_switchdev *swdev = port->sw->swdev; + struct prestera_bridge_port *br_port; + struct prestera_bridge *bridge; + + bridge = prestera_bridge_by_dev(swdev, br_dev); + if (!bridge) + return; + + br_port = __prestera_bridge_port_by_dev(bridge, port->dev); + if (!br_port) + return; + + bridge = br_port->bridge; + + if (bridge->vlan_enabled) + prestera_bridge_1q_port_leave(br_port); + else + prestera_bridge_1d_port_leave(br_port); + + switchdev_bridge_port_unoffload(br_port->dev, NULL, NULL, NULL); + + prestera_mdb_flush_bridge_port(br_port); + + prestera_br_port_flags_reset(br_port, port); + prestera_port_vid_stp_set(port, PRESTERA_VID_ALL, BR_STATE_FORWARDING); + prestera_bridge_port_put(br_port); +} + +static int prestera_port_attr_br_flags_set(struct prestera_port *port, + struct net_device *dev, + struct switchdev_brport_flags flags) +{ + struct prestera_bridge_port *br_port; + + br_port = prestera_bridge_port_by_dev(port->sw->swdev, dev); + if (!br_port) + return 0; + + br_port->flags &= ~flags.mask; + br_port->flags |= flags.val & flags.mask; + return prestera_br_port_flags_set(br_port, port); +} + +static int prestera_port_attr_br_ageing_set(struct prestera_port *port, + unsigned long ageing_clock_t) +{ + unsigned long ageing_jiffies = clock_t_to_jiffies(ageing_clock_t); + u32 ageing_time_ms = jiffies_to_msecs(ageing_jiffies); + struct prestera_switch *sw = port->sw; + + if (ageing_time_ms < PRESTERA_MIN_AGEING_TIME_MS || + ageing_time_ms > PRESTERA_MAX_AGEING_TIME_MS) + return -ERANGE; + + return prestera_hw_switch_ageing_set(sw, ageing_time_ms); +} + +static int prestera_port_attr_br_vlan_set(struct prestera_port *port, + struct net_device *dev, + bool vlan_enabled) +{ + struct prestera_switch *sw = port->sw; + struct prestera_bridge *bridge; + + bridge = prestera_bridge_by_dev(sw->swdev, dev); + if (WARN_ON(!bridge)) + return -EINVAL; + + if (bridge->vlan_enabled == vlan_enabled) + return 0; + + netdev_err(bridge->dev, "VLAN filtering can't be changed for existing bridge\n"); + + return -EINVAL; +} + +static int prestera_port_bridge_vlan_stp_set(struct prestera_port *port, + struct prestera_bridge_vlan *br_vlan, + u8 state) +{ + struct prestera_port_vlan *port_vlan; + + list_for_each_entry(port_vlan, &br_vlan->port_vlan_list, br_vlan_head) { + if (port_vlan->port != port) + continue; + + return prestera_port_vid_stp_set(port, br_vlan->vid, state); + } + + return 0; +} + +static int prestera_port_attr_stp_state_set(struct prestera_port *port, + struct net_device *dev, + u8 state) +{ + struct prestera_bridge_port *br_port; + struct prestera_bridge_vlan *br_vlan; + int err; + u16 vid; + + br_port = prestera_bridge_port_by_dev(port->sw->swdev, dev); + if (!br_port) + return 0; + + if (!br_port->bridge->vlan_enabled) { + vid = br_port->bridge->bridge_id; + err = prestera_port_vid_stp_set(port, vid, state); + if (err) + goto err_port_stp_set; + } else { + list_for_each_entry(br_vlan, &br_port->vlan_list, head) { + err = prestera_port_bridge_vlan_stp_set(port, br_vlan, + state); + if (err) + goto err_port_vlan_stp_set; + } + } + + br_port->stp_state = state; + + return 0; + +err_port_vlan_stp_set: + list_for_each_entry_continue_reverse(br_vlan, &br_port->vlan_list, head) + prestera_port_bridge_vlan_stp_set(port, br_vlan, br_port->stp_state); + return err; + +err_port_stp_set: + prestera_port_vid_stp_set(port, vid, br_port->stp_state); + + return err; +} + +static int +prestera_br_port_lag_mdb_mc_enable_sync(struct prestera_bridge_port *br_port, + bool enabled) +{ + struct prestera_port *pr_port; + struct prestera_switch *sw; + u16 lag_id; + int err; + + pr_port = prestera_port_dev_lower_find(br_port->dev); + if (!pr_port) + return 0; + + sw = pr_port->sw; + err = prestera_lag_id(sw, br_port->dev, &lag_id); + if (err) + return err; + + list_for_each_entry(pr_port, &sw->port_list, list) { + if (pr_port->lag->lag_id == lag_id) { + err = prestera_port_mc_flood_set(pr_port, enabled); + if (err) + return err; + } + } + + return 0; +} + +static int prestera_br_mdb_mc_enable_sync(struct prestera_bridge *br_dev) +{ + struct prestera_bridge_port *br_port; + struct prestera_port *port; + bool enabled; + int err; + + /* if mrouter exists: + * - make sure every mrouter receives unreg mcast traffic; + * if mrouter doesn't exists: + * - make sure every port receives unreg mcast traffic; + */ + list_for_each_entry(br_port, &br_dev->port_list, head) { + if (br_dev->multicast_enabled && br_dev->mrouter_exist) + enabled = br_port->mrouter; + else + enabled = br_port->flags & BR_MCAST_FLOOD; + + if (netif_is_lag_master(br_port->dev)) { + err = prestera_br_port_lag_mdb_mc_enable_sync(br_port, + enabled); + if (err) + return err; + continue; + } + + port = prestera_port_dev_lower_find(br_port->dev); + if (!port) + continue; + + err = prestera_port_mc_flood_set(port, enabled); + if (err) + return err; + } + + return 0; +} + +static bool +prestera_br_mdb_port_is_member(struct prestera_br_mdb_entry *br_mdb, + struct net_device *orig_dev) +{ + struct prestera_br_mdb_port *tmp_port; + + list_for_each_entry(tmp_port, &br_mdb->br_mdb_port_list, + br_mdb_port_node) + if (tmp_port->br_port->dev == orig_dev) + return true; + + return false; +} + +static int +prestera_mdb_port_add(struct prestera_mdb_entry *mdb, + struct net_device *orig_dev, + const unsigned char addr[ETH_ALEN], u16 vid) +{ + struct prestera_flood_domain *flood_domain = mdb->flood_domain; + int err; + + if (!prestera_flood_domain_port_find(flood_domain, + orig_dev, vid)) { + err = prestera_flood_domain_port_create(flood_domain, orig_dev, + vid); + if (err) + return err; + } + + return 0; +} + +/* Sync bridge mdb (software table) with HW table (if MC is enabled). */ +static int prestera_br_mdb_sync(struct prestera_bridge *br_dev) +{ + struct prestera_br_mdb_port *br_mdb_port; + struct prestera_bridge_port *br_port; + struct prestera_br_mdb_entry *br_mdb; + struct prestera_mdb_entry *mdb; + struct prestera_port *pr_port; + int err = 0; + + if (!br_dev->multicast_enabled) + return 0; + + list_for_each_entry(br_mdb, &br_dev->br_mdb_entry_list, + br_mdb_entry_node) { + mdb = br_mdb->mdb; + /* Make sure every port that explicitly been added to the mdb + * joins the specified group. + */ + list_for_each_entry(br_mdb_port, &br_mdb->br_mdb_port_list, + br_mdb_port_node) { + br_port = br_mdb_port->br_port; + pr_port = prestera_port_dev_lower_find(br_port->dev); + + /* Match only mdb and br_mdb ports that belong to the + * same broadcast domain. + */ + if (br_dev->vlan_enabled && + !prestera_port_vlan_by_vid(pr_port, + mdb->vid)) + continue; + + /* If port is not in MDB or there's no Mrouter + * clear HW mdb. + */ + if (prestera_br_mdb_port_is_member(br_mdb, + br_mdb_port->br_port->dev) && + br_dev->mrouter_exist) + err = prestera_mdb_port_add(mdb, br_port->dev, + mdb->addr, + mdb->vid); + else + prestera_mdb_port_del(mdb, br_port->dev); + + if (err) + return err; + } + + /* Make sure that every mrouter port joins every MC group int + * broadcast domain. If it's not an mrouter - it should leave + */ + list_for_each_entry(br_port, &br_dev->port_list, head) { + pr_port = prestera_port_dev_lower_find(br_port->dev); + + /* Make sure mrouter woudln't receive traffci from + * another broadcast domain (e.g. from a vlan, which + * mrouter port is not a member of). + */ + if (br_dev->vlan_enabled && + !prestera_port_vlan_by_vid(pr_port, + mdb->vid)) + continue; + + if (br_port->mrouter) { + err = prestera_mdb_port_add(mdb, br_port->dev, + mdb->addr, + mdb->vid); + if (err) + return err; + } else if (!br_port->mrouter && + !prestera_br_mdb_port_is_member + (br_mdb, br_port->dev)) { + prestera_mdb_port_del(mdb, br_port->dev); + } + } + } + + return 0; +} + +static int +prestera_mdb_enable_set(struct prestera_br_mdb_entry *br_mdb, bool enable) +{ + int err; + + if (enable != br_mdb->enabled) { + if (enable) + err = prestera_hw_mdb_create(br_mdb->mdb); + else + err = prestera_hw_mdb_destroy(br_mdb->mdb); + + if (err) + return err; + + br_mdb->enabled = enable; + } + + return 0; +} + +static int +prestera_br_mdb_enable_set(struct prestera_bridge *br_dev, bool enable) +{ + struct prestera_br_mdb_entry *br_mdb; + int err; + + list_for_each_entry(br_mdb, &br_dev->br_mdb_entry_list, + br_mdb_entry_node) { + err = prestera_mdb_enable_set(br_mdb, enable); + if (err) + return err; + } + + return 0; +} + +static int prestera_port_attr_br_mc_disabled_set(struct prestera_port *port, + struct net_device *orig_dev, + bool mc_disabled) +{ + struct prestera_switch *sw = port->sw; + struct prestera_bridge *br_dev; + + br_dev = prestera_bridge_find(sw, orig_dev); + if (!br_dev) + return 0; + + br_dev->multicast_enabled = !mc_disabled; + + /* There's no point in enabling mdb back if router is missing. */ + WARN_ON(prestera_br_mdb_enable_set(br_dev, br_dev->multicast_enabled && + br_dev->mrouter_exist)); + + WARN_ON(prestera_br_mdb_sync(br_dev)); + + WARN_ON(prestera_br_mdb_mc_enable_sync(br_dev)); + + return 0; +} + +static bool +prestera_bridge_mdb_mc_mrouter_exists(struct prestera_bridge *br_dev) +{ + struct prestera_bridge_port *br_port; + + list_for_each_entry(br_port, &br_dev->port_list, head) + if (br_port->mrouter) + return true; + + return false; +} + +static int +prestera_port_attr_mrouter_set(struct prestera_port *port, + struct net_device *orig_dev, + bool is_port_mrouter) +{ + struct prestera_bridge_port *br_port; + struct prestera_bridge *br_dev; + + br_port = prestera_bridge_port_find(port->sw, orig_dev); + if (!br_port) + return 0; + + br_dev = br_port->bridge; + br_port->mrouter = is_port_mrouter; + + br_dev->mrouter_exist = prestera_bridge_mdb_mc_mrouter_exists(br_dev); + + /* Enable MDB processing if both mrouter exists and mc is enabled. + * In case if MC enabled, but there is no mrouter, device would flood + * all multicast traffic (even if MDB table is not empty) with the use + * of bridge's flood capabilities (without the use of flood_domain). + */ + WARN_ON(prestera_br_mdb_enable_set(br_dev, br_dev->multicast_enabled && + br_dev->mrouter_exist)); + + WARN_ON(prestera_br_mdb_sync(br_dev)); + + WARN_ON(prestera_br_mdb_mc_enable_sync(br_dev)); + + return 0; +} + +static int prestera_port_obj_attr_set(struct net_device *dev, const void *ctx, + const struct switchdev_attr *attr, + struct netlink_ext_ack *extack) +{ + struct prestera_port *port = netdev_priv(dev); + int err = 0; + + switch (attr->id) { + case SWITCHDEV_ATTR_ID_PORT_STP_STATE: + err = prestera_port_attr_stp_state_set(port, attr->orig_dev, + attr->u.stp_state); + break; + case SWITCHDEV_ATTR_ID_PORT_PRE_BRIDGE_FLAGS: + if (attr->u.brport_flags.mask & + ~(BR_LEARNING | BR_FLOOD | BR_MCAST_FLOOD | BR_PORT_LOCKED)) + err = -EINVAL; + break; + case SWITCHDEV_ATTR_ID_PORT_BRIDGE_FLAGS: + err = prestera_port_attr_br_flags_set(port, attr->orig_dev, + attr->u.brport_flags); + break; + case SWITCHDEV_ATTR_ID_BRIDGE_AGEING_TIME: + err = prestera_port_attr_br_ageing_set(port, + attr->u.ageing_time); + break; + case SWITCHDEV_ATTR_ID_BRIDGE_VLAN_FILTERING: + err = prestera_port_attr_br_vlan_set(port, attr->orig_dev, + attr->u.vlan_filtering); + break; + case SWITCHDEV_ATTR_ID_PORT_MROUTER: + err = prestera_port_attr_mrouter_set(port, attr->orig_dev, + attr->u.mrouter); + break; + case SWITCHDEV_ATTR_ID_BRIDGE_MC_DISABLED: + err = prestera_port_attr_br_mc_disabled_set(port, attr->orig_dev, + attr->u.mc_disabled); + break; + default: + err = -EOPNOTSUPP; + } + + return err; +} + +static void +prestera_fdb_offload_notify(struct prestera_port *port, + struct switchdev_notifier_fdb_info *info) +{ + struct switchdev_notifier_fdb_info send_info = {}; + + send_info.addr = info->addr; + send_info.vid = info->vid; + send_info.offloaded = true; + + call_switchdev_notifiers(SWITCHDEV_FDB_OFFLOADED, port->dev, + &send_info.info, NULL); +} + +static int prestera_port_fdb_set(struct prestera_port *port, + struct switchdev_notifier_fdb_info *fdb_info, + bool adding) +{ + struct prestera_switch *sw = port->sw; + struct prestera_bridge_port *br_port; + struct prestera_bridge *bridge; + int err; + u16 vid; + + br_port = prestera_bridge_port_by_dev(sw->swdev, port->dev); + if (!br_port) + return -EINVAL; + + bridge = br_port->bridge; + + if (bridge->vlan_enabled) + vid = fdb_info->vid; + else + vid = bridge->bridge_id; + + if (adding) + err = prestera_fdb_add(port, fdb_info->addr, vid, false); + else + err = prestera_fdb_del(port, fdb_info->addr, vid); + + return err; +} + +static void prestera_fdb_event_work(struct work_struct *work) +{ + struct switchdev_notifier_fdb_info *fdb_info; + struct prestera_fdb_event_work *swdev_work; + struct prestera_port *port; + struct net_device *dev; + int err; + + swdev_work = container_of(work, struct prestera_fdb_event_work, work); + dev = swdev_work->dev; + + rtnl_lock(); + + port = prestera_port_dev_lower_find(dev); + if (!port) + goto out_unlock; + + switch (swdev_work->event) { + case SWITCHDEV_FDB_ADD_TO_DEVICE: + fdb_info = &swdev_work->fdb_info; + if (!fdb_info->added_by_user || fdb_info->is_local) + break; + + err = prestera_port_fdb_set(port, fdb_info, true); + if (err) + break; + + prestera_fdb_offload_notify(port, fdb_info); + break; + + case SWITCHDEV_FDB_DEL_TO_DEVICE: + fdb_info = &swdev_work->fdb_info; + prestera_port_fdb_set(port, fdb_info, false); + break; + } + +out_unlock: + rtnl_unlock(); + + kfree(swdev_work->fdb_info.addr); + kfree(swdev_work); + dev_put(dev); +} + +static int prestera_switchdev_event(struct notifier_block *unused, + unsigned long event, void *ptr) +{ + struct net_device *dev = switchdev_notifier_info_to_dev(ptr); + struct switchdev_notifier_fdb_info *fdb_info; + struct switchdev_notifier_info *info = ptr; + struct prestera_fdb_event_work *swdev_work; + struct net_device *upper; + int err; + + if (event == SWITCHDEV_PORT_ATTR_SET) { + err = switchdev_handle_port_attr_set(dev, ptr, + prestera_netdev_check, + prestera_port_obj_attr_set); + return notifier_from_errno(err); + } + + if (!prestera_netdev_check(dev)) + return NOTIFY_DONE; + + upper = netdev_master_upper_dev_get_rcu(dev); + if (!upper) + return NOTIFY_DONE; + + if (!netif_is_bridge_master(upper)) + return NOTIFY_DONE; + + swdev_work = kzalloc(sizeof(*swdev_work), GFP_ATOMIC); + if (!swdev_work) + return NOTIFY_BAD; + + swdev_work->event = event; + swdev_work->dev = dev; + + switch (event) { + case SWITCHDEV_FDB_ADD_TO_DEVICE: + case SWITCHDEV_FDB_DEL_TO_DEVICE: + fdb_info = container_of(info, + struct switchdev_notifier_fdb_info, + info); + + INIT_WORK(&swdev_work->work, prestera_fdb_event_work); + memcpy(&swdev_work->fdb_info, ptr, + sizeof(swdev_work->fdb_info)); + + swdev_work->fdb_info.addr = kzalloc(ETH_ALEN, GFP_ATOMIC); + if (!swdev_work->fdb_info.addr) + goto out_bad; + + ether_addr_copy((u8 *)swdev_work->fdb_info.addr, + fdb_info->addr); + dev_hold(dev); + break; + + default: + kfree(swdev_work); + return NOTIFY_DONE; + } + + queue_work(swdev_wq, &swdev_work->work); + return NOTIFY_DONE; + +out_bad: + kfree(swdev_work); + return NOTIFY_BAD; +} + +static int +prestera_port_vlan_bridge_join(struct prestera_port_vlan *port_vlan, + struct prestera_bridge_port *br_port) +{ + struct prestera_port *port = port_vlan->port; + struct prestera_bridge_vlan *br_vlan; + u16 vid = port_vlan->vid; + int err; + + if (port_vlan->br_port) + return 0; + + err = prestera_br_port_flags_set(br_port, port); + if (err) + goto err_flags2port_set; + + err = prestera_port_vid_stp_set(port, vid, br_port->stp_state); + if (err) + goto err_port_vid_stp_set; + + br_vlan = prestera_bridge_vlan_by_vid(br_port, vid); + if (!br_vlan) { + br_vlan = prestera_bridge_vlan_create(br_port, vid); + if (!br_vlan) { + err = -ENOMEM; + goto err_bridge_vlan_get; + } + } + + list_add(&port_vlan->br_vlan_head, &br_vlan->port_vlan_list); + + prestera_bridge_port_get(br_port); + port_vlan->br_port = br_port; + + return 0; + +err_bridge_vlan_get: + prestera_port_vid_stp_set(port, vid, BR_STATE_FORWARDING); +err_port_vid_stp_set: + prestera_br_port_flags_reset(br_port, port); +err_flags2port_set: + return err; +} + +static int +prestera_bridge_port_vlan_add(struct prestera_port *port, + struct prestera_bridge_port *br_port, + u16 vid, bool is_untagged, bool is_pvid, + struct netlink_ext_ack *extack) +{ + struct prestera_port_vlan *port_vlan; + u16 old_pvid = port->pvid; + u16 pvid; + int err; + + if (is_pvid) + pvid = vid; + else + pvid = port->pvid == vid ? 0 : port->pvid; + + port_vlan = prestera_port_vlan_by_vid(port, vid); + if (port_vlan && port_vlan->br_port != br_port) + return -EEXIST; + + if (!port_vlan) { + port_vlan = prestera_port_vlan_create(port, vid, is_untagged); + if (IS_ERR(port_vlan)) + return PTR_ERR(port_vlan); + } else { + err = prestera_hw_vlan_port_set(port, vid, true, is_untagged); + if (err) + goto err_port_vlan_set; + } + + err = prestera_port_pvid_set(port, pvid); + if (err) + goto err_port_pvid_set; + + err = prestera_port_vlan_bridge_join(port_vlan, br_port); + if (err) + goto err_port_vlan_bridge_join; + + return 0; + +err_port_vlan_bridge_join: + prestera_port_pvid_set(port, old_pvid); +err_port_pvid_set: + prestera_hw_vlan_port_set(port, vid, false, false); +err_port_vlan_set: + prestera_port_vlan_destroy(port_vlan); + + return err; +} + +static void +prestera_bridge_port_vlan_del(struct prestera_port *port, + struct prestera_bridge_port *br_port, u16 vid) +{ + u16 pvid = port->pvid == vid ? 0 : port->pvid; + struct prestera_port_vlan *port_vlan; + + port_vlan = prestera_port_vlan_by_vid(port, vid); + if (WARN_ON(!port_vlan)) + return; + + prestera_port_vlan_bridge_leave(port_vlan); + prestera_port_pvid_set(port, pvid); + prestera_port_vlan_destroy(port_vlan); +} + +static int prestera_port_vlans_add(struct prestera_port *port, + const struct switchdev_obj_port_vlan *vlan, + struct netlink_ext_ack *extack) +{ + bool flag_untagged = vlan->flags & BRIDGE_VLAN_INFO_UNTAGGED; + bool flag_pvid = vlan->flags & BRIDGE_VLAN_INFO_PVID; + struct net_device *orig_dev = vlan->obj.orig_dev; + struct prestera_bridge_port *br_port; + struct prestera_switch *sw = port->sw; + struct prestera_bridge *bridge; + + if (netif_is_bridge_master(orig_dev)) + return 0; + + br_port = prestera_bridge_port_by_dev(sw->swdev, port->dev); + if (WARN_ON(!br_port)) + return -EINVAL; + + bridge = br_port->bridge; + if (!bridge->vlan_enabled) + return 0; + + return prestera_bridge_port_vlan_add(port, br_port, + vlan->vid, flag_untagged, + flag_pvid, extack); +} + +static struct prestera_br_mdb_entry * +prestera_br_mdb_entry_create(struct prestera_switch *sw, + struct prestera_bridge *br_dev, + const unsigned char *addr, u16 vid) +{ + struct prestera_br_mdb_entry *br_mdb_entry; + struct prestera_mdb_entry *mdb_entry; + + br_mdb_entry = kzalloc(sizeof(*br_mdb_entry), GFP_KERNEL); + if (!br_mdb_entry) + return NULL; + + mdb_entry = prestera_mdb_entry_create(sw, addr, vid); + if (!mdb_entry) + goto err_mdb_alloc; + + br_mdb_entry->mdb = mdb_entry; + br_mdb_entry->bridge = br_dev; + br_mdb_entry->enabled = true; + INIT_LIST_HEAD(&br_mdb_entry->br_mdb_port_list); + + list_add(&br_mdb_entry->br_mdb_entry_node, &br_dev->br_mdb_entry_list); + + return br_mdb_entry; + +err_mdb_alloc: + kfree(br_mdb_entry); + return NULL; +} + +static int prestera_br_mdb_port_add(struct prestera_br_mdb_entry *br_mdb, + struct prestera_bridge_port *br_port) +{ + struct prestera_br_mdb_port *br_mdb_port; + + list_for_each_entry(br_mdb_port, &br_mdb->br_mdb_port_list, + br_mdb_port_node) + if (br_mdb_port->br_port == br_port) + return 0; + + br_mdb_port = kzalloc(sizeof(*br_mdb_port), GFP_KERNEL); + if (!br_mdb_port) + return -ENOMEM; + + br_mdb_port->br_port = br_port; + list_add(&br_mdb_port->br_mdb_port_node, + &br_mdb->br_mdb_port_list); + + return 0; +} + +static struct prestera_br_mdb_entry * +prestera_br_mdb_entry_find(struct prestera_bridge *br_dev, + const unsigned char *addr, u16 vid) +{ + struct prestera_br_mdb_entry *br_mdb; + + list_for_each_entry(br_mdb, &br_dev->br_mdb_entry_list, + br_mdb_entry_node) + if (ether_addr_equal(&br_mdb->mdb->addr[0], addr) && + vid == br_mdb->mdb->vid) + return br_mdb; + + return NULL; +} + +static struct prestera_br_mdb_entry * +prestera_br_mdb_entry_get(struct prestera_switch *sw, + struct prestera_bridge *br_dev, + const unsigned char *addr, u16 vid) +{ + struct prestera_br_mdb_entry *br_mdb; + + br_mdb = prestera_br_mdb_entry_find(br_dev, addr, vid); + if (br_mdb) + return br_mdb; + + return prestera_br_mdb_entry_create(sw, br_dev, addr, vid); +} + +static int +prestera_mdb_port_addr_obj_add(const struct switchdev_obj_port_mdb *mdb) +{ + struct prestera_br_mdb_entry *br_mdb; + struct prestera_bridge_port *br_port; + struct prestera_bridge *br_dev; + struct prestera_switch *sw; + struct prestera_port *port; + int err; + + sw = prestera_switch_get(mdb->obj.orig_dev); + port = prestera_port_dev_lower_find(mdb->obj.orig_dev); + + br_port = prestera_bridge_port_find(sw, mdb->obj.orig_dev); + if (!br_port) + return 0; + + br_dev = br_port->bridge; + + if (mdb->vid && !prestera_port_vlan_by_vid(port, mdb->vid)) + return 0; + + if (mdb->vid) + br_mdb = prestera_br_mdb_entry_get(sw, br_dev, &mdb->addr[0], + mdb->vid); + else + br_mdb = prestera_br_mdb_entry_get(sw, br_dev, &mdb->addr[0], + br_dev->bridge_id); + + if (!br_mdb) + return -ENOMEM; + + /* Make sure newly allocated MDB entry gets disabled if either MC is + * disabled, or the mrouter does not exist. + */ + WARN_ON(prestera_mdb_enable_set(br_mdb, br_dev->multicast_enabled && + br_dev->mrouter_exist)); + + err = prestera_br_mdb_port_add(br_mdb, br_port); + if (err) { + prestera_br_mdb_entry_put(br_mdb); + return err; + } + + err = prestera_br_mdb_sync(br_dev); + if (err) + return err; + + return 0; +} + +static int prestera_port_obj_add(struct net_device *dev, const void *ctx, + const struct switchdev_obj *obj, + struct netlink_ext_ack *extack) +{ + struct prestera_port *port = netdev_priv(dev); + const struct switchdev_obj_port_vlan *vlan; + const struct switchdev_obj_port_mdb *mdb; + int err = 0; + + switch (obj->id) { + case SWITCHDEV_OBJ_ID_PORT_VLAN: + vlan = SWITCHDEV_OBJ_PORT_VLAN(obj); + return prestera_port_vlans_add(port, vlan, extack); + case SWITCHDEV_OBJ_ID_PORT_MDB: + mdb = SWITCHDEV_OBJ_PORT_MDB(obj); + err = prestera_mdb_port_addr_obj_add(mdb); + break; + case SWITCHDEV_OBJ_ID_HOST_MDB: + fallthrough; + default: + err = -EOPNOTSUPP; + break; + } + + return err; +} + +static int prestera_port_vlans_del(struct prestera_port *port, + const struct switchdev_obj_port_vlan *vlan) +{ + struct net_device *orig_dev = vlan->obj.orig_dev; + struct prestera_bridge_port *br_port; + struct prestera_switch *sw = port->sw; + + if (netif_is_bridge_master(orig_dev)) + return -EOPNOTSUPP; + + br_port = prestera_bridge_port_by_dev(sw->swdev, port->dev); + if (WARN_ON(!br_port)) + return -EINVAL; + + if (!br_port->bridge->vlan_enabled) + return 0; + + prestera_bridge_port_vlan_del(port, br_port, vlan->vid); + + return 0; +} + +static int +prestera_mdb_port_addr_obj_del(struct prestera_port *port, + const struct switchdev_obj_port_mdb *mdb) +{ + struct prestera_br_mdb_entry *br_mdb; + struct prestera_bridge_port *br_port; + struct prestera_bridge *br_dev; + int err; + + /* Bridge port no longer exists - and so does this MDB entry */ + br_port = prestera_bridge_port_find(port->sw, mdb->obj.orig_dev); + if (!br_port) + return 0; + + /* Removing MDB with non-existing VLAN - not supported; */ + if (mdb->vid && !prestera_port_vlan_by_vid(port, mdb->vid)) + return 0; + + br_dev = br_port->bridge; + + if (br_port->bridge->vlan_enabled) + br_mdb = prestera_br_mdb_entry_find(br_dev, &mdb->addr[0], + mdb->vid); + else + br_mdb = prestera_br_mdb_entry_find(br_dev, &mdb->addr[0], + br_port->bridge->bridge_id); + + if (!br_mdb) + return 0; + + /* Since there might be a situation that this port was the last in the + * MDB group, we have to both remove this port from software and HW MDB, + * sync MDB table, and then destroy software MDB (if needed). + */ + prestera_br_mdb_port_del(br_mdb, br_port); + + prestera_br_mdb_entry_put(br_mdb); + + err = prestera_br_mdb_sync(br_dev); + if (err) + return err; + + return 0; +} + +static int prestera_port_obj_del(struct net_device *dev, const void *ctx, + const struct switchdev_obj *obj) +{ + struct prestera_port *port = netdev_priv(dev); + const struct switchdev_obj_port_mdb *mdb; + int err = 0; + + switch (obj->id) { + case SWITCHDEV_OBJ_ID_PORT_VLAN: + return prestera_port_vlans_del(port, SWITCHDEV_OBJ_PORT_VLAN(obj)); + case SWITCHDEV_OBJ_ID_PORT_MDB: + mdb = SWITCHDEV_OBJ_PORT_MDB(obj); + err = prestera_mdb_port_addr_obj_del(port, mdb); + break; + default: + err = -EOPNOTSUPP; + break; + } + + return err; +} + +static int prestera_switchdev_blk_event(struct notifier_block *unused, + unsigned long event, void *ptr) +{ + struct net_device *dev = switchdev_notifier_info_to_dev(ptr); + int err; + + switch (event) { + case SWITCHDEV_PORT_OBJ_ADD: + err = switchdev_handle_port_obj_add(dev, ptr, + prestera_netdev_check, + prestera_port_obj_add); + break; + case SWITCHDEV_PORT_OBJ_DEL: + err = switchdev_handle_port_obj_del(dev, ptr, + prestera_netdev_check, + prestera_port_obj_del); + break; + case SWITCHDEV_PORT_ATTR_SET: + err = switchdev_handle_port_attr_set(dev, ptr, + prestera_netdev_check, + prestera_port_obj_attr_set); + break; + default: + return NOTIFY_DONE; + } + + return notifier_from_errno(err); +} + +static void prestera_fdb_event(struct prestera_switch *sw, + struct prestera_event *evt, void *arg) +{ + struct switchdev_notifier_fdb_info info = {}; + struct net_device *dev = NULL; + struct prestera_port *port; + struct prestera_lag *lag; + + switch (evt->fdb_evt.type) { + case PRESTERA_FDB_ENTRY_TYPE_REG_PORT: + port = prestera_find_port(sw, evt->fdb_evt.dest.port_id); + if (port) + dev = port->dev; + break; + case PRESTERA_FDB_ENTRY_TYPE_LAG: + lag = prestera_lag_by_id(sw, evt->fdb_evt.dest.lag_id); + if (lag) + dev = lag->dev; + break; + default: + return; + } + + if (!dev) + return; + + info.addr = evt->fdb_evt.data.mac; + info.vid = evt->fdb_evt.vid; + info.offloaded = true; + + rtnl_lock(); + + switch (evt->id) { + case PRESTERA_FDB_EVENT_LEARNED: + call_switchdev_notifiers(SWITCHDEV_FDB_ADD_TO_BRIDGE, + dev, &info.info, NULL); + break; + case PRESTERA_FDB_EVENT_AGED: + call_switchdev_notifiers(SWITCHDEV_FDB_DEL_TO_BRIDGE, + dev, &info.info, NULL); + break; + } + + rtnl_unlock(); +} + +static int prestera_fdb_init(struct prestera_switch *sw) +{ + int err; + + err = prestera_hw_event_handler_register(sw, PRESTERA_EVENT_TYPE_FDB, + prestera_fdb_event, NULL); + if (err) + return err; + + err = prestera_hw_switch_ageing_set(sw, PRESTERA_DEFAULT_AGEING_TIME_MS); + if (err) + goto err_ageing_set; + + return 0; + +err_ageing_set: + prestera_hw_event_handler_unregister(sw, PRESTERA_EVENT_TYPE_FDB, + prestera_fdb_event); + return err; +} + +static void prestera_fdb_fini(struct prestera_switch *sw) +{ + prestera_hw_event_handler_unregister(sw, PRESTERA_EVENT_TYPE_FDB, + prestera_fdb_event); +} + +static int prestera_switchdev_handler_init(struct prestera_switchdev *swdev) +{ + int err; + + swdev->swdev_nb.notifier_call = prestera_switchdev_event; + err = register_switchdev_notifier(&swdev->swdev_nb); + if (err) + goto err_register_swdev_notifier; + + swdev->swdev_nb_blk.notifier_call = prestera_switchdev_blk_event; + err = register_switchdev_blocking_notifier(&swdev->swdev_nb_blk); + if (err) + goto err_register_blk_swdev_notifier; + + return 0; + +err_register_blk_swdev_notifier: + unregister_switchdev_notifier(&swdev->swdev_nb); +err_register_swdev_notifier: + destroy_workqueue(swdev_wq); + return err; +} + +static void prestera_switchdev_handler_fini(struct prestera_switchdev *swdev) +{ + unregister_switchdev_blocking_notifier(&swdev->swdev_nb_blk); + unregister_switchdev_notifier(&swdev->swdev_nb); +} + +int prestera_switchdev_init(struct prestera_switch *sw) +{ + struct prestera_switchdev *swdev; + int err; + + swdev = kzalloc(sizeof(*swdev), GFP_KERNEL); + if (!swdev) + return -ENOMEM; + + sw->swdev = swdev; + swdev->sw = sw; + + INIT_LIST_HEAD(&swdev->bridge_list); + + swdev_wq = alloc_ordered_workqueue("%s_ordered", 0, "prestera_br"); + if (!swdev_wq) { + err = -ENOMEM; + goto err_alloc_wq; + } + + err = prestera_switchdev_handler_init(swdev); + if (err) + goto err_swdev_init; + + err = prestera_fdb_init(sw); + if (err) + goto err_fdb_init; + + return 0; + +err_fdb_init: +err_swdev_init: + destroy_workqueue(swdev_wq); +err_alloc_wq: + kfree(swdev); + + return err; +} + +void prestera_switchdev_fini(struct prestera_switch *sw) +{ + struct prestera_switchdev *swdev = sw->swdev; + + prestera_fdb_fini(sw); + prestera_switchdev_handler_fini(swdev); + destroy_workqueue(swdev_wq); + kfree(swdev); +} diff --git a/drivers/net/ethernet/marvell/prestera/prestera_switchdev.h b/drivers/net/ethernet/marvell/prestera/prestera_switchdev.h new file mode 100644 index 000000000..0e93fda3d --- /dev/null +++ b/drivers/net/ethernet/marvell/prestera/prestera_switchdev.h @@ -0,0 +1,17 @@ +/* SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0 */ +/* Copyright (c) 2019-2020 Marvell International Ltd. All rights reserved. */ + +#ifndef _PRESTERA_SWITCHDEV_H_ +#define _PRESTERA_SWITCHDEV_H_ + +int prestera_switchdev_init(struct prestera_switch *sw); +void prestera_switchdev_fini(struct prestera_switch *sw); + +int prestera_bridge_port_join(struct net_device *br_dev, + struct prestera_port *port, + struct netlink_ext_ack *extack); + +void prestera_bridge_port_leave(struct net_device *br_dev, + struct prestera_port *port); + +#endif /* _PRESTERA_SWITCHDEV_H_ */ diff --git a/drivers/net/ethernet/marvell/pxa168_eth.c b/drivers/net/ethernet/marvell/pxa168_eth.c new file mode 100644 index 000000000..cf456d626 --- /dev/null +++ b/drivers/net/ethernet/marvell/pxa168_eth.c @@ -0,0 +1,1597 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * PXA168 ethernet driver. + * Most of the code is derived from mv643xx ethernet driver. + * + * Copyright (C) 2010 Marvell International Ltd. + * Sachin Sanap <ssanap@marvell.com> + * Zhangfei Gao <zgao6@marvell.com> + * Philip Rakity <prakity@marvell.com> + * Mark Brown <markb@marvell.com> + */ + +#include <linux/bitops.h> +#include <linux/clk.h> +#include <linux/delay.h> +#include <linux/dma-mapping.h> +#include <linux/etherdevice.h> +#include <linux/ethtool.h> +#include <linux/in.h> +#include <linux/interrupt.h> +#include <linux/io.h> +#include <linux/ip.h> +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/of.h> +#include <linux/of_net.h> +#include <linux/phy.h> +#include <linux/platform_device.h> +#include <linux/pxa168_eth.h> +#include <linux/tcp.h> +#include <linux/types.h> +#include <linux/udp.h> +#include <linux/workqueue.h> +#include <linux/pgtable.h> + +#include <asm/cacheflush.h> + +#define DRIVER_NAME "pxa168-eth" +#define DRIVER_VERSION "0.3" + +/* + * Registers + */ + +#define PHY_ADDRESS 0x0000 +#define SMI 0x0010 +#define PORT_CONFIG 0x0400 +#define PORT_CONFIG_EXT 0x0408 +#define PORT_COMMAND 0x0410 +#define PORT_STATUS 0x0418 +#define HTPR 0x0428 +#define MAC_ADDR_LOW 0x0430 +#define MAC_ADDR_HIGH 0x0438 +#define SDMA_CONFIG 0x0440 +#define SDMA_CMD 0x0448 +#define INT_CAUSE 0x0450 +#define INT_W_CLEAR 0x0454 +#define INT_MASK 0x0458 +#define ETH_F_RX_DESC_0 0x0480 +#define ETH_C_RX_DESC_0 0x04A0 +#define ETH_C_TX_DESC_1 0x04E4 + +/* smi register */ +#define SMI_BUSY (1 << 28) /* 0 - Write, 1 - Read */ +#define SMI_R_VALID (1 << 27) /* 0 - Write, 1 - Read */ +#define SMI_OP_W (0 << 26) /* Write operation */ +#define SMI_OP_R (1 << 26) /* Read operation */ + +#define PHY_WAIT_ITERATIONS 10 + +#define PXA168_ETH_PHY_ADDR_DEFAULT 0 +/* RX & TX descriptor command */ +#define BUF_OWNED_BY_DMA (1 << 31) + +/* RX descriptor status */ +#define RX_EN_INT (1 << 23) +#define RX_FIRST_DESC (1 << 17) +#define RX_LAST_DESC (1 << 16) +#define RX_ERROR (1 << 15) + +/* TX descriptor command */ +#define TX_EN_INT (1 << 23) +#define TX_GEN_CRC (1 << 22) +#define TX_ZERO_PADDING (1 << 18) +#define TX_FIRST_DESC (1 << 17) +#define TX_LAST_DESC (1 << 16) +#define TX_ERROR (1 << 15) + +/* SDMA_CMD */ +#define SDMA_CMD_AT (1 << 31) +#define SDMA_CMD_TXDL (1 << 24) +#define SDMA_CMD_TXDH (1 << 23) +#define SDMA_CMD_AR (1 << 15) +#define SDMA_CMD_ERD (1 << 7) + +/* Bit definitions of the Port Config Reg */ +#define PCR_DUPLEX_FULL (1 << 15) +#define PCR_HS (1 << 12) +#define PCR_EN (1 << 7) +#define PCR_PM (1 << 0) + +/* Bit definitions of the Port Config Extend Reg */ +#define PCXR_2BSM (1 << 28) +#define PCXR_DSCP_EN (1 << 21) +#define PCXR_RMII_EN (1 << 20) +#define PCXR_AN_SPEED_DIS (1 << 19) +#define PCXR_SPEED_100 (1 << 18) +#define PCXR_MFL_1518 (0 << 14) +#define PCXR_MFL_1536 (1 << 14) +#define PCXR_MFL_2048 (2 << 14) +#define PCXR_MFL_64K (3 << 14) +#define PCXR_FLOWCTL_DIS (1 << 12) +#define PCXR_FLP (1 << 11) +#define PCXR_AN_FLOWCTL_DIS (1 << 10) +#define PCXR_AN_DUPLEX_DIS (1 << 9) +#define PCXR_PRIO_TX_OFF 3 +#define PCXR_TX_HIGH_PRI (7 << PCXR_PRIO_TX_OFF) + +/* Bit definitions of the SDMA Config Reg */ +#define SDCR_BSZ_OFF 12 +#define SDCR_BSZ8 (3 << SDCR_BSZ_OFF) +#define SDCR_BSZ4 (2 << SDCR_BSZ_OFF) +#define SDCR_BSZ2 (1 << SDCR_BSZ_OFF) +#define SDCR_BSZ1 (0 << SDCR_BSZ_OFF) +#define SDCR_BLMR (1 << 6) +#define SDCR_BLMT (1 << 7) +#define SDCR_RIFB (1 << 9) +#define SDCR_RC_OFF 2 +#define SDCR_RC_MAX_RETRANS (0xf << SDCR_RC_OFF) + +/* + * Bit definitions of the Interrupt Cause Reg + * and Interrupt MASK Reg is the same + */ +#define ICR_RXBUF (1 << 0) +#define ICR_TXBUF_H (1 << 2) +#define ICR_TXBUF_L (1 << 3) +#define ICR_TXEND_H (1 << 6) +#define ICR_TXEND_L (1 << 7) +#define ICR_RXERR (1 << 8) +#define ICR_TXERR_H (1 << 10) +#define ICR_TXERR_L (1 << 11) +#define ICR_TX_UDR (1 << 13) +#define ICR_MII_CH (1 << 28) + +#define ALL_INTS (ICR_TXBUF_H | ICR_TXBUF_L | ICR_TX_UDR |\ + ICR_TXERR_H | ICR_TXERR_L |\ + ICR_TXEND_H | ICR_TXEND_L |\ + ICR_RXBUF | ICR_RXERR | ICR_MII_CH) + +#define ETH_HW_IP_ALIGN 2 /* hw aligns IP header */ + +#define NUM_RX_DESCS 64 +#define NUM_TX_DESCS 64 + +#define HASH_ADD 0 +#define HASH_DELETE 1 +#define HASH_ADDR_TABLE_SIZE 0x4000 /* 16K (1/2K address - PCR_HS == 1) */ +#define HOP_NUMBER 12 + +/* Bit definitions for Port status */ +#define PORT_SPEED_100 (1 << 0) +#define FULL_DUPLEX (1 << 1) +#define FLOW_CONTROL_DISABLED (1 << 2) +#define LINK_UP (1 << 3) + +/* Bit definitions for work to be done */ +#define WORK_TX_DONE (1 << 1) + +/* + * Misc definitions. + */ +#define SKB_DMA_REALIGN ((PAGE_SIZE - NET_SKB_PAD) % SMP_CACHE_BYTES) + +struct rx_desc { + u32 cmd_sts; /* Descriptor command status */ + u16 byte_cnt; /* Descriptor buffer byte count */ + u16 buf_size; /* Buffer size */ + u32 buf_ptr; /* Descriptor buffer pointer */ + u32 next_desc_ptr; /* Next descriptor pointer */ +}; + +struct tx_desc { + u32 cmd_sts; /* Command/status field */ + u16 reserved; + u16 byte_cnt; /* buffer byte count */ + u32 buf_ptr; /* pointer to buffer for this descriptor */ + u32 next_desc_ptr; /* Pointer to next descriptor */ +}; + +struct pxa168_eth_private { + struct platform_device *pdev; + int port_num; /* User Ethernet port number */ + int phy_addr; + int phy_speed; + int phy_duplex; + phy_interface_t phy_intf; + + int rx_resource_err; /* Rx ring resource error flag */ + + /* Next available and first returning Rx resource */ + int rx_curr_desc_q, rx_used_desc_q; + + /* Next available and first returning Tx resource */ + int tx_curr_desc_q, tx_used_desc_q; + + struct rx_desc *p_rx_desc_area; + dma_addr_t rx_desc_dma; + int rx_desc_area_size; + struct sk_buff **rx_skb; + + struct tx_desc *p_tx_desc_area; + dma_addr_t tx_desc_dma; + int tx_desc_area_size; + struct sk_buff **tx_skb; + + struct work_struct tx_timeout_task; + + struct net_device *dev; + struct napi_struct napi; + u8 work_todo; + int skb_size; + + /* Size of Tx Ring per queue */ + int tx_ring_size; + /* Number of tx descriptors in use */ + int tx_desc_count; + /* Size of Rx Ring per queue */ + int rx_ring_size; + /* Number of rx descriptors in use */ + int rx_desc_count; + + /* + * Used in case RX Ring is empty, which can occur when + * system does not have resources (skb's) + */ + struct timer_list timeout; + struct mii_bus *smi_bus; + + /* clock */ + struct clk *clk; + struct pxa168_eth_platform_data *pd; + /* + * Ethernet controller base address. + */ + void __iomem *base; + + /* Pointer to the hardware address filter table */ + void *htpr; + dma_addr_t htpr_dma; +}; + +struct addr_table_entry { + __le32 lo; + __le32 hi; +}; + +/* Bit fields of a Hash Table Entry */ +enum hash_table_entry { + HASH_ENTRY_VALID = 1, + SKIP = 2, + HASH_ENTRY_RECEIVE_DISCARD = 4, + HASH_ENTRY_RECEIVE_DISCARD_BIT = 2 +}; + +static int pxa168_init_hw(struct pxa168_eth_private *pep); +static int pxa168_init_phy(struct net_device *dev); +static void eth_port_reset(struct net_device *dev); +static void eth_port_start(struct net_device *dev); +static int pxa168_eth_open(struct net_device *dev); +static int pxa168_eth_stop(struct net_device *dev); + +static inline u32 rdl(struct pxa168_eth_private *pep, int offset) +{ + return readl_relaxed(pep->base + offset); +} + +static inline void wrl(struct pxa168_eth_private *pep, int offset, u32 data) +{ + writel_relaxed(data, pep->base + offset); +} + +static void abort_dma(struct pxa168_eth_private *pep) +{ + int delay; + int max_retries = 40; + + do { + wrl(pep, SDMA_CMD, SDMA_CMD_AR | SDMA_CMD_AT); + udelay(100); + + delay = 10; + while ((rdl(pep, SDMA_CMD) & (SDMA_CMD_AR | SDMA_CMD_AT)) + && delay-- > 0) { + udelay(10); + } + } while (max_retries-- > 0 && delay <= 0); + + if (max_retries <= 0) + netdev_err(pep->dev, "%s : DMA Stuck\n", __func__); +} + +static void rxq_refill(struct net_device *dev) +{ + struct pxa168_eth_private *pep = netdev_priv(dev); + struct sk_buff *skb; + struct rx_desc *p_used_rx_desc; + int used_rx_desc; + + while (pep->rx_desc_count < pep->rx_ring_size) { + int size; + + skb = netdev_alloc_skb(dev, pep->skb_size); + if (!skb) + break; + if (SKB_DMA_REALIGN) + skb_reserve(skb, SKB_DMA_REALIGN); + pep->rx_desc_count++; + /* Get 'used' Rx descriptor */ + used_rx_desc = pep->rx_used_desc_q; + p_used_rx_desc = &pep->p_rx_desc_area[used_rx_desc]; + size = skb_end_pointer(skb) - skb->data; + p_used_rx_desc->buf_ptr = dma_map_single(&pep->pdev->dev, + skb->data, + size, + DMA_FROM_DEVICE); + p_used_rx_desc->buf_size = size; + pep->rx_skb[used_rx_desc] = skb; + + /* Return the descriptor to DMA ownership */ + dma_wmb(); + p_used_rx_desc->cmd_sts = BUF_OWNED_BY_DMA | RX_EN_INT; + dma_wmb(); + + /* Move the used descriptor pointer to the next descriptor */ + pep->rx_used_desc_q = (used_rx_desc + 1) % pep->rx_ring_size; + + /* Any Rx return cancels the Rx resource error status */ + pep->rx_resource_err = 0; + + skb_reserve(skb, ETH_HW_IP_ALIGN); + } + + /* + * If RX ring is empty of SKB, set a timer to try allocating + * again at a later time. + */ + if (pep->rx_desc_count == 0) { + pep->timeout.expires = jiffies + (HZ / 10); + add_timer(&pep->timeout); + } +} + +static inline void rxq_refill_timer_wrapper(struct timer_list *t) +{ + struct pxa168_eth_private *pep = from_timer(pep, t, timeout); + napi_schedule(&pep->napi); +} + +static inline u8 flip_8_bits(u8 x) +{ + return (((x) & 0x01) << 3) | (((x) & 0x02) << 1) + | (((x) & 0x04) >> 1) | (((x) & 0x08) >> 3) + | (((x) & 0x10) << 3) | (((x) & 0x20) << 1) + | (((x) & 0x40) >> 1) | (((x) & 0x80) >> 3); +} + +static void nibble_swap_every_byte(unsigned char *mac_addr) +{ + int i; + for (i = 0; i < ETH_ALEN; i++) { + mac_addr[i] = ((mac_addr[i] & 0x0f) << 4) | + ((mac_addr[i] & 0xf0) >> 4); + } +} + +static void inverse_every_nibble(unsigned char *mac_addr) +{ + int i; + for (i = 0; i < ETH_ALEN; i++) + mac_addr[i] = flip_8_bits(mac_addr[i]); +} + +/* + * ---------------------------------------------------------------------------- + * This function will calculate the hash function of the address. + * Inputs + * mac_addr_orig - MAC address. + * Outputs + * return the calculated entry. + */ +static u32 hash_function(const unsigned char *mac_addr_orig) +{ + u32 hash_result; + u32 addr0; + u32 addr1; + u32 addr2; + u32 addr3; + unsigned char mac_addr[ETH_ALEN]; + + /* Make a copy of MAC address since we are going to performe bit + * operations on it + */ + memcpy(mac_addr, mac_addr_orig, ETH_ALEN); + + nibble_swap_every_byte(mac_addr); + inverse_every_nibble(mac_addr); + + addr0 = (mac_addr[5] >> 2) & 0x3f; + addr1 = (mac_addr[5] & 0x03) | (((mac_addr[4] & 0x7f)) << 2); + addr2 = ((mac_addr[4] & 0x80) >> 7) | mac_addr[3] << 1; + addr3 = (mac_addr[2] & 0xff) | ((mac_addr[1] & 1) << 8); + + hash_result = (addr0 << 9) | (addr1 ^ addr2 ^ addr3); + hash_result = hash_result & 0x07ff; + return hash_result; +} + +/* + * ---------------------------------------------------------------------------- + * This function will add/del an entry to the address table. + * Inputs + * pep - ETHERNET . + * mac_addr - MAC address. + * skip - if 1, skip this address.Used in case of deleting an entry which is a + * part of chain in the hash table.We can't just delete the entry since + * that will break the chain.We need to defragment the tables time to + * time. + * rd - 0 Discard packet upon match. + * - 1 Receive packet upon match. + * Outputs + * address table entry is added/deleted. + * 0 if success. + * -ENOSPC if table full + */ +static int add_del_hash_entry(struct pxa168_eth_private *pep, + const unsigned char *mac_addr, + u32 rd, u32 skip, int del) +{ + struct addr_table_entry *entry, *start; + u32 new_high; + u32 new_low; + u32 i; + + new_low = (((mac_addr[1] >> 4) & 0xf) << 15) + | (((mac_addr[1] >> 0) & 0xf) << 11) + | (((mac_addr[0] >> 4) & 0xf) << 7) + | (((mac_addr[0] >> 0) & 0xf) << 3) + | (((mac_addr[3] >> 4) & 0x1) << 31) + | (((mac_addr[3] >> 0) & 0xf) << 27) + | (((mac_addr[2] >> 4) & 0xf) << 23) + | (((mac_addr[2] >> 0) & 0xf) << 19) + | (skip << SKIP) | (rd << HASH_ENTRY_RECEIVE_DISCARD_BIT) + | HASH_ENTRY_VALID; + + new_high = (((mac_addr[5] >> 4) & 0xf) << 15) + | (((mac_addr[5] >> 0) & 0xf) << 11) + | (((mac_addr[4] >> 4) & 0xf) << 7) + | (((mac_addr[4] >> 0) & 0xf) << 3) + | (((mac_addr[3] >> 5) & 0x7) << 0); + + /* + * Pick the appropriate table, start scanning for free/reusable + * entries at the index obtained by hashing the specified MAC address + */ + start = pep->htpr; + entry = start + hash_function(mac_addr); + for (i = 0; i < HOP_NUMBER; i++) { + if (!(le32_to_cpu(entry->lo) & HASH_ENTRY_VALID)) { + break; + } else { + /* if same address put in same position */ + if (((le32_to_cpu(entry->lo) & 0xfffffff8) == + (new_low & 0xfffffff8)) && + (le32_to_cpu(entry->hi) == new_high)) { + break; + } + } + if (entry == start + 0x7ff) + entry = start; + else + entry++; + } + + if (((le32_to_cpu(entry->lo) & 0xfffffff8) != (new_low & 0xfffffff8)) && + (le32_to_cpu(entry->hi) != new_high) && del) + return 0; + + if (i == HOP_NUMBER) { + if (!del) { + netdev_info(pep->dev, + "%s: table section is full, need to " + "move to 16kB implementation?\n", + __FILE__); + return -ENOSPC; + } else + return 0; + } + + /* + * Update the selected entry + */ + if (del) { + entry->hi = 0; + entry->lo = 0; + } else { + entry->hi = cpu_to_le32(new_high); + entry->lo = cpu_to_le32(new_low); + } + + return 0; +} + +/* + * ---------------------------------------------------------------------------- + * Create an addressTable entry from MAC address info + * found in the specifed net_device struct + * + * Input : pointer to ethernet interface network device structure + * Output : N/A + */ +static void update_hash_table_mac_address(struct pxa168_eth_private *pep, + unsigned char *oaddr, + const unsigned char *addr) +{ + /* Delete old entry */ + if (oaddr) + add_del_hash_entry(pep, oaddr, 1, 0, HASH_DELETE); + /* Add new entry */ + add_del_hash_entry(pep, addr, 1, 0, HASH_ADD); +} + +static int init_hash_table(struct pxa168_eth_private *pep) +{ + /* + * Hardware expects CPU to build a hash table based on a predefined + * hash function and populate it based on hardware address. The + * location of the hash table is identified by 32-bit pointer stored + * in HTPR internal register. Two possible sizes exists for the hash + * table 8kB (256kB of DRAM required (4 x 64 kB banks)) and 1/2kB + * (16kB of DRAM required (4 x 4 kB banks)).We currently only support + * 1/2kB. + */ + /* TODO: Add support for 8kB hash table and alternative hash + * function.Driver can dynamically switch to them if the 1/2kB hash + * table is full. + */ + if (!pep->htpr) { + pep->htpr = dma_alloc_coherent(pep->dev->dev.parent, + HASH_ADDR_TABLE_SIZE, + &pep->htpr_dma, GFP_KERNEL); + if (!pep->htpr) + return -ENOMEM; + } else { + memset(pep->htpr, 0, HASH_ADDR_TABLE_SIZE); + } + wrl(pep, HTPR, pep->htpr_dma); + return 0; +} + +static void pxa168_eth_set_rx_mode(struct net_device *dev) +{ + struct pxa168_eth_private *pep = netdev_priv(dev); + struct netdev_hw_addr *ha; + u32 val; + + val = rdl(pep, PORT_CONFIG); + if (dev->flags & IFF_PROMISC) + val |= PCR_PM; + else + val &= ~PCR_PM; + wrl(pep, PORT_CONFIG, val); + + /* + * Remove the old list of MAC address and add dev->addr + * and multicast address. + */ + memset(pep->htpr, 0, HASH_ADDR_TABLE_SIZE); + update_hash_table_mac_address(pep, NULL, dev->dev_addr); + + netdev_for_each_mc_addr(ha, dev) + update_hash_table_mac_address(pep, NULL, ha->addr); +} + +static void pxa168_eth_get_mac_address(struct net_device *dev, + unsigned char *addr) +{ + struct pxa168_eth_private *pep = netdev_priv(dev); + unsigned int mac_h = rdl(pep, MAC_ADDR_HIGH); + unsigned int mac_l = rdl(pep, MAC_ADDR_LOW); + + addr[0] = (mac_h >> 24) & 0xff; + addr[1] = (mac_h >> 16) & 0xff; + addr[2] = (mac_h >> 8) & 0xff; + addr[3] = mac_h & 0xff; + addr[4] = (mac_l >> 8) & 0xff; + addr[5] = mac_l & 0xff; +} + +static int pxa168_eth_set_mac_address(struct net_device *dev, void *addr) +{ + struct sockaddr *sa = addr; + struct pxa168_eth_private *pep = netdev_priv(dev); + unsigned char oldMac[ETH_ALEN]; + u32 mac_h, mac_l; + + if (!is_valid_ether_addr(sa->sa_data)) + return -EADDRNOTAVAIL; + memcpy(oldMac, dev->dev_addr, ETH_ALEN); + eth_hw_addr_set(dev, sa->sa_data); + + mac_h = dev->dev_addr[0] << 24; + mac_h |= dev->dev_addr[1] << 16; + mac_h |= dev->dev_addr[2] << 8; + mac_h |= dev->dev_addr[3]; + mac_l = dev->dev_addr[4] << 8; + mac_l |= dev->dev_addr[5]; + wrl(pep, MAC_ADDR_HIGH, mac_h); + wrl(pep, MAC_ADDR_LOW, mac_l); + + netif_addr_lock_bh(dev); + update_hash_table_mac_address(pep, oldMac, dev->dev_addr); + netif_addr_unlock_bh(dev); + return 0; +} + +static void eth_port_start(struct net_device *dev) +{ + unsigned int val = 0; + struct pxa168_eth_private *pep = netdev_priv(dev); + int tx_curr_desc, rx_curr_desc; + + phy_start(dev->phydev); + + /* Assignment of Tx CTRP of given queue */ + tx_curr_desc = pep->tx_curr_desc_q; + wrl(pep, ETH_C_TX_DESC_1, + (u32) (pep->tx_desc_dma + tx_curr_desc * sizeof(struct tx_desc))); + + /* Assignment of Rx CRDP of given queue */ + rx_curr_desc = pep->rx_curr_desc_q; + wrl(pep, ETH_C_RX_DESC_0, + (u32) (pep->rx_desc_dma + rx_curr_desc * sizeof(struct rx_desc))); + + wrl(pep, ETH_F_RX_DESC_0, + (u32) (pep->rx_desc_dma + rx_curr_desc * sizeof(struct rx_desc))); + + /* Clear all interrupts */ + wrl(pep, INT_CAUSE, 0); + + /* Enable all interrupts for receive, transmit and error. */ + wrl(pep, INT_MASK, ALL_INTS); + + val = rdl(pep, PORT_CONFIG); + val |= PCR_EN; + wrl(pep, PORT_CONFIG, val); + + /* Start RX DMA engine */ + val = rdl(pep, SDMA_CMD); + val |= SDMA_CMD_ERD; + wrl(pep, SDMA_CMD, val); +} + +static void eth_port_reset(struct net_device *dev) +{ + struct pxa168_eth_private *pep = netdev_priv(dev); + unsigned int val = 0; + + /* Stop all interrupts for receive, transmit and error. */ + wrl(pep, INT_MASK, 0); + + /* Clear all interrupts */ + wrl(pep, INT_CAUSE, 0); + + /* Stop RX DMA */ + val = rdl(pep, SDMA_CMD); + val &= ~SDMA_CMD_ERD; /* abort dma command */ + + /* Abort any transmit and receive operations and put DMA + * in idle state. + */ + abort_dma(pep); + + /* Disable port */ + val = rdl(pep, PORT_CONFIG); + val &= ~PCR_EN; + wrl(pep, PORT_CONFIG, val); + + phy_stop(dev->phydev); +} + +/* + * txq_reclaim - Free the tx desc data for completed descriptors + * If force is non-zero, frees uncompleted descriptors as well + */ +static int txq_reclaim(struct net_device *dev, int force) +{ + struct pxa168_eth_private *pep = netdev_priv(dev); + struct tx_desc *desc; + u32 cmd_sts; + struct sk_buff *skb; + int tx_index; + dma_addr_t addr; + int count; + int released = 0; + + netif_tx_lock(dev); + + pep->work_todo &= ~WORK_TX_DONE; + while (pep->tx_desc_count > 0) { + tx_index = pep->tx_used_desc_q; + desc = &pep->p_tx_desc_area[tx_index]; + cmd_sts = desc->cmd_sts; + if (!force && (cmd_sts & BUF_OWNED_BY_DMA)) { + if (released > 0) { + goto txq_reclaim_end; + } else { + released = -1; + goto txq_reclaim_end; + } + } + pep->tx_used_desc_q = (tx_index + 1) % pep->tx_ring_size; + pep->tx_desc_count--; + addr = desc->buf_ptr; + count = desc->byte_cnt; + skb = pep->tx_skb[tx_index]; + if (skb) + pep->tx_skb[tx_index] = NULL; + + if (cmd_sts & TX_ERROR) { + if (net_ratelimit()) + netdev_err(dev, "Error in TX\n"); + dev->stats.tx_errors++; + } + dma_unmap_single(&pep->pdev->dev, addr, count, DMA_TO_DEVICE); + if (skb) + dev_kfree_skb_irq(skb); + released++; + } +txq_reclaim_end: + netif_tx_unlock(dev); + return released; +} + +static void pxa168_eth_tx_timeout(struct net_device *dev, unsigned int txqueue) +{ + struct pxa168_eth_private *pep = netdev_priv(dev); + + netdev_info(dev, "TX timeout desc_count %d\n", pep->tx_desc_count); + + schedule_work(&pep->tx_timeout_task); +} + +static void pxa168_eth_tx_timeout_task(struct work_struct *work) +{ + struct pxa168_eth_private *pep = container_of(work, + struct pxa168_eth_private, + tx_timeout_task); + struct net_device *dev = pep->dev; + pxa168_eth_stop(dev); + pxa168_eth_open(dev); +} + +static int rxq_process(struct net_device *dev, int budget) +{ + struct pxa168_eth_private *pep = netdev_priv(dev); + struct net_device_stats *stats = &dev->stats; + unsigned int received_packets = 0; + struct sk_buff *skb; + + while (budget-- > 0) { + int rx_next_curr_desc, rx_curr_desc, rx_used_desc; + struct rx_desc *rx_desc; + unsigned int cmd_sts; + + /* Do not process Rx ring in case of Rx ring resource error */ + if (pep->rx_resource_err) + break; + rx_curr_desc = pep->rx_curr_desc_q; + rx_used_desc = pep->rx_used_desc_q; + rx_desc = &pep->p_rx_desc_area[rx_curr_desc]; + cmd_sts = rx_desc->cmd_sts; + dma_rmb(); + if (cmd_sts & (BUF_OWNED_BY_DMA)) + break; + skb = pep->rx_skb[rx_curr_desc]; + pep->rx_skb[rx_curr_desc] = NULL; + + rx_next_curr_desc = (rx_curr_desc + 1) % pep->rx_ring_size; + pep->rx_curr_desc_q = rx_next_curr_desc; + + /* Rx descriptors exhausted. */ + /* Set the Rx ring resource error flag */ + if (rx_next_curr_desc == rx_used_desc) + pep->rx_resource_err = 1; + pep->rx_desc_count--; + dma_unmap_single(&pep->pdev->dev, rx_desc->buf_ptr, + rx_desc->buf_size, + DMA_FROM_DEVICE); + received_packets++; + /* + * Update statistics. + * Note byte count includes 4 byte CRC count + */ + stats->rx_packets++; + stats->rx_bytes += rx_desc->byte_cnt; + /* + * In case received a packet without first / last bits on OR + * the error summary bit is on, the packets needs to be droped. + */ + if (((cmd_sts & (RX_FIRST_DESC | RX_LAST_DESC)) != + (RX_FIRST_DESC | RX_LAST_DESC)) + || (cmd_sts & RX_ERROR)) { + + stats->rx_dropped++; + if ((cmd_sts & (RX_FIRST_DESC | RX_LAST_DESC)) != + (RX_FIRST_DESC | RX_LAST_DESC)) { + if (net_ratelimit()) + netdev_err(dev, + "Rx pkt on multiple desc\n"); + } + if (cmd_sts & RX_ERROR) + stats->rx_errors++; + dev_kfree_skb_irq(skb); + } else { + /* + * The -4 is for the CRC in the trailer of the + * received packet + */ + skb_put(skb, rx_desc->byte_cnt - 4); + skb->protocol = eth_type_trans(skb, dev); + netif_receive_skb(skb); + } + } + /* Fill RX ring with skb's */ + rxq_refill(dev); + return received_packets; +} + +static int pxa168_eth_collect_events(struct pxa168_eth_private *pep, + struct net_device *dev) +{ + u32 icr; + int ret = 0; + + icr = rdl(pep, INT_CAUSE); + if (icr == 0) + return IRQ_NONE; + + wrl(pep, INT_CAUSE, ~icr); + if (icr & (ICR_TXBUF_H | ICR_TXBUF_L)) { + pep->work_todo |= WORK_TX_DONE; + ret = 1; + } + if (icr & ICR_RXBUF) + ret = 1; + return ret; +} + +static irqreturn_t pxa168_eth_int_handler(int irq, void *dev_id) +{ + struct net_device *dev = (struct net_device *)dev_id; + struct pxa168_eth_private *pep = netdev_priv(dev); + + if (unlikely(!pxa168_eth_collect_events(pep, dev))) + return IRQ_NONE; + /* Disable interrupts */ + wrl(pep, INT_MASK, 0); + napi_schedule(&pep->napi); + return IRQ_HANDLED; +} + +static void pxa168_eth_recalc_skb_size(struct pxa168_eth_private *pep) +{ + int skb_size; + + /* + * Reserve 2+14 bytes for an ethernet header (the hardware + * automatically prepends 2 bytes of dummy data to each + * received packet), 16 bytes for up to four VLAN tags, and + * 4 bytes for the trailing FCS -- 36 bytes total. + */ + skb_size = pep->dev->mtu + 36; + + /* + * Make sure that the skb size is a multiple of 8 bytes, as + * the lower three bits of the receive descriptor's buffer + * size field are ignored by the hardware. + */ + pep->skb_size = (skb_size + 7) & ~7; + + /* + * If NET_SKB_PAD is smaller than a cache line, + * netdev_alloc_skb() will cause skb->data to be misaligned + * to a cache line boundary. If this is the case, include + * some extra space to allow re-aligning the data area. + */ + pep->skb_size += SKB_DMA_REALIGN; + +} + +static int set_port_config_ext(struct pxa168_eth_private *pep) +{ + int skb_size; + + pxa168_eth_recalc_skb_size(pep); + if (pep->skb_size <= 1518) + skb_size = PCXR_MFL_1518; + else if (pep->skb_size <= 1536) + skb_size = PCXR_MFL_1536; + else if (pep->skb_size <= 2048) + skb_size = PCXR_MFL_2048; + else + skb_size = PCXR_MFL_64K; + + /* Extended Port Configuration */ + wrl(pep, PORT_CONFIG_EXT, + PCXR_AN_SPEED_DIS | /* Disable HW AN */ + PCXR_AN_DUPLEX_DIS | + PCXR_AN_FLOWCTL_DIS | + PCXR_2BSM | /* Two byte prefix aligns IP hdr */ + PCXR_DSCP_EN | /* Enable DSCP in IP */ + skb_size | PCXR_FLP | /* do not force link pass */ + PCXR_TX_HIGH_PRI); /* Transmit - high priority queue */ + + return 0; +} + +static void pxa168_eth_adjust_link(struct net_device *dev) +{ + struct pxa168_eth_private *pep = netdev_priv(dev); + struct phy_device *phy = dev->phydev; + u32 cfg, cfg_o = rdl(pep, PORT_CONFIG); + u32 cfgext, cfgext_o = rdl(pep, PORT_CONFIG_EXT); + + cfg = cfg_o & ~PCR_DUPLEX_FULL; + cfgext = cfgext_o & ~(PCXR_SPEED_100 | PCXR_FLOWCTL_DIS | PCXR_RMII_EN); + + if (phy->interface == PHY_INTERFACE_MODE_RMII) + cfgext |= PCXR_RMII_EN; + if (phy->speed == SPEED_100) + cfgext |= PCXR_SPEED_100; + if (phy->duplex) + cfg |= PCR_DUPLEX_FULL; + if (!phy->pause) + cfgext |= PCXR_FLOWCTL_DIS; + + /* Bail out if there has nothing changed */ + if (cfg == cfg_o && cfgext == cfgext_o) + return; + + wrl(pep, PORT_CONFIG, cfg); + wrl(pep, PORT_CONFIG_EXT, cfgext); + + phy_print_status(phy); +} + +static int pxa168_init_phy(struct net_device *dev) +{ + struct pxa168_eth_private *pep = netdev_priv(dev); + struct ethtool_link_ksettings cmd; + struct phy_device *phy = NULL; + int err; + + if (dev->phydev) + return 0; + + phy = mdiobus_scan(pep->smi_bus, pep->phy_addr); + if (IS_ERR(phy)) + return PTR_ERR(phy); + + err = phy_connect_direct(dev, phy, pxa168_eth_adjust_link, + pep->phy_intf); + if (err) + return err; + + cmd.base.phy_address = pep->phy_addr; + cmd.base.speed = pep->phy_speed; + cmd.base.duplex = pep->phy_duplex; + linkmode_copy(cmd.link_modes.advertising, PHY_BASIC_FEATURES); + cmd.base.autoneg = AUTONEG_ENABLE; + + if (cmd.base.speed != 0) + cmd.base.autoneg = AUTONEG_DISABLE; + + return phy_ethtool_set_link_ksettings(dev, &cmd); +} + +static int pxa168_init_hw(struct pxa168_eth_private *pep) +{ + int err = 0; + + /* Disable interrupts */ + wrl(pep, INT_MASK, 0); + wrl(pep, INT_CAUSE, 0); + /* Write to ICR to clear interrupts. */ + wrl(pep, INT_W_CLEAR, 0); + /* Abort any transmit and receive operations and put DMA + * in idle state. + */ + abort_dma(pep); + /* Initialize address hash table */ + err = init_hash_table(pep); + if (err) + return err; + /* SDMA configuration */ + wrl(pep, SDMA_CONFIG, SDCR_BSZ8 | /* Burst size = 32 bytes */ + SDCR_RIFB | /* Rx interrupt on frame */ + SDCR_BLMT | /* Little endian transmit */ + SDCR_BLMR | /* Little endian receive */ + SDCR_RC_MAX_RETRANS); /* Max retransmit count */ + /* Port Configuration */ + wrl(pep, PORT_CONFIG, PCR_HS); /* Hash size is 1/2kb */ + set_port_config_ext(pep); + + return err; +} + +static int rxq_init(struct net_device *dev) +{ + struct pxa168_eth_private *pep = netdev_priv(dev); + struct rx_desc *p_rx_desc; + int size = 0, i = 0; + int rx_desc_num = pep->rx_ring_size; + + /* Allocate RX skb rings */ + pep->rx_skb = kcalloc(rx_desc_num, sizeof(*pep->rx_skb), GFP_KERNEL); + if (!pep->rx_skb) + return -ENOMEM; + + /* Allocate RX ring */ + pep->rx_desc_count = 0; + size = pep->rx_ring_size * sizeof(struct rx_desc); + pep->rx_desc_area_size = size; + pep->p_rx_desc_area = dma_alloc_coherent(pep->dev->dev.parent, size, + &pep->rx_desc_dma, + GFP_KERNEL); + if (!pep->p_rx_desc_area) + goto out; + + /* initialize the next_desc_ptr links in the Rx descriptors ring */ + p_rx_desc = pep->p_rx_desc_area; + for (i = 0; i < rx_desc_num; i++) { + p_rx_desc[i].next_desc_ptr = pep->rx_desc_dma + + ((i + 1) % rx_desc_num) * sizeof(struct rx_desc); + } + /* Save Rx desc pointer to driver struct. */ + pep->rx_curr_desc_q = 0; + pep->rx_used_desc_q = 0; + pep->rx_desc_area_size = rx_desc_num * sizeof(struct rx_desc); + return 0; +out: + kfree(pep->rx_skb); + return -ENOMEM; +} + +static void rxq_deinit(struct net_device *dev) +{ + struct pxa168_eth_private *pep = netdev_priv(dev); + int curr; + + /* Free preallocated skb's on RX rings */ + for (curr = 0; pep->rx_desc_count && curr < pep->rx_ring_size; curr++) { + if (pep->rx_skb[curr]) { + dev_kfree_skb(pep->rx_skb[curr]); + pep->rx_desc_count--; + } + } + if (pep->rx_desc_count) + netdev_err(dev, "Error in freeing Rx Ring. %d skb's still\n", + pep->rx_desc_count); + /* Free RX ring */ + if (pep->p_rx_desc_area) + dma_free_coherent(pep->dev->dev.parent, pep->rx_desc_area_size, + pep->p_rx_desc_area, pep->rx_desc_dma); + kfree(pep->rx_skb); +} + +static int txq_init(struct net_device *dev) +{ + struct pxa168_eth_private *pep = netdev_priv(dev); + struct tx_desc *p_tx_desc; + int size = 0, i = 0; + int tx_desc_num = pep->tx_ring_size; + + pep->tx_skb = kcalloc(tx_desc_num, sizeof(*pep->tx_skb), GFP_KERNEL); + if (!pep->tx_skb) + return -ENOMEM; + + /* Allocate TX ring */ + pep->tx_desc_count = 0; + size = pep->tx_ring_size * sizeof(struct tx_desc); + pep->tx_desc_area_size = size; + pep->p_tx_desc_area = dma_alloc_coherent(pep->dev->dev.parent, size, + &pep->tx_desc_dma, + GFP_KERNEL); + if (!pep->p_tx_desc_area) + goto out; + /* Initialize the next_desc_ptr links in the Tx descriptors ring */ + p_tx_desc = pep->p_tx_desc_area; + for (i = 0; i < tx_desc_num; i++) { + p_tx_desc[i].next_desc_ptr = pep->tx_desc_dma + + ((i + 1) % tx_desc_num) * sizeof(struct tx_desc); + } + pep->tx_curr_desc_q = 0; + pep->tx_used_desc_q = 0; + pep->tx_desc_area_size = tx_desc_num * sizeof(struct tx_desc); + return 0; +out: + kfree(pep->tx_skb); + return -ENOMEM; +} + +static void txq_deinit(struct net_device *dev) +{ + struct pxa168_eth_private *pep = netdev_priv(dev); + + /* Free outstanding skb's on TX ring */ + txq_reclaim(dev, 1); + BUG_ON(pep->tx_used_desc_q != pep->tx_curr_desc_q); + /* Free TX ring */ + if (pep->p_tx_desc_area) + dma_free_coherent(pep->dev->dev.parent, pep->tx_desc_area_size, + pep->p_tx_desc_area, pep->tx_desc_dma); + kfree(pep->tx_skb); +} + +static int pxa168_eth_open(struct net_device *dev) +{ + struct pxa168_eth_private *pep = netdev_priv(dev); + int err; + + err = pxa168_init_phy(dev); + if (err) + return err; + + err = request_irq(dev->irq, pxa168_eth_int_handler, 0, dev->name, dev); + if (err) { + dev_err(&dev->dev, "can't assign irq\n"); + return -EAGAIN; + } + pep->rx_resource_err = 0; + err = rxq_init(dev); + if (err != 0) + goto out_free_irq; + err = txq_init(dev); + if (err != 0) + goto out_free_rx_skb; + pep->rx_used_desc_q = 0; + pep->rx_curr_desc_q = 0; + + /* Fill RX ring with skb's */ + rxq_refill(dev); + pep->rx_used_desc_q = 0; + pep->rx_curr_desc_q = 0; + netif_carrier_off(dev); + napi_enable(&pep->napi); + eth_port_start(dev); + return 0; +out_free_rx_skb: + rxq_deinit(dev); +out_free_irq: + free_irq(dev->irq, dev); + return err; +} + +static int pxa168_eth_stop(struct net_device *dev) +{ + struct pxa168_eth_private *pep = netdev_priv(dev); + eth_port_reset(dev); + + /* Disable interrupts */ + wrl(pep, INT_MASK, 0); + wrl(pep, INT_CAUSE, 0); + /* Write to ICR to clear interrupts. */ + wrl(pep, INT_W_CLEAR, 0); + napi_disable(&pep->napi); + del_timer_sync(&pep->timeout); + netif_carrier_off(dev); + free_irq(dev->irq, dev); + rxq_deinit(dev); + txq_deinit(dev); + + return 0; +} + +static int pxa168_eth_change_mtu(struct net_device *dev, int mtu) +{ + struct pxa168_eth_private *pep = netdev_priv(dev); + + dev->mtu = mtu; + set_port_config_ext(pep); + + if (!netif_running(dev)) + return 0; + + /* + * Stop and then re-open the interface. This will allocate RX + * skbs of the new MTU. + * There is a possible danger that the open will not succeed, + * due to memory being full. + */ + pxa168_eth_stop(dev); + if (pxa168_eth_open(dev)) { + dev_err(&dev->dev, + "fatal error on re-opening device after MTU change\n"); + } + + return 0; +} + +static int eth_alloc_tx_desc_index(struct pxa168_eth_private *pep) +{ + int tx_desc_curr; + + tx_desc_curr = pep->tx_curr_desc_q; + pep->tx_curr_desc_q = (tx_desc_curr + 1) % pep->tx_ring_size; + BUG_ON(pep->tx_curr_desc_q == pep->tx_used_desc_q); + pep->tx_desc_count++; + + return tx_desc_curr; +} + +static int pxa168_rx_poll(struct napi_struct *napi, int budget) +{ + struct pxa168_eth_private *pep = + container_of(napi, struct pxa168_eth_private, napi); + struct net_device *dev = pep->dev; + int work_done = 0; + + /* + * We call txq_reclaim every time since in NAPI interupts are disabled + * and due to this we miss the TX_DONE interrupt,which is not updated in + * interrupt status register. + */ + txq_reclaim(dev, 0); + if (netif_queue_stopped(dev) + && pep->tx_ring_size - pep->tx_desc_count > 1) { + netif_wake_queue(dev); + } + work_done = rxq_process(dev, budget); + if (work_done < budget) { + napi_complete_done(napi, work_done); + wrl(pep, INT_MASK, ALL_INTS); + } + + return work_done; +} + +static netdev_tx_t +pxa168_eth_start_xmit(struct sk_buff *skb, struct net_device *dev) +{ + struct pxa168_eth_private *pep = netdev_priv(dev); + struct net_device_stats *stats = &dev->stats; + struct tx_desc *desc; + int tx_index; + int length; + + tx_index = eth_alloc_tx_desc_index(pep); + desc = &pep->p_tx_desc_area[tx_index]; + length = skb->len; + pep->tx_skb[tx_index] = skb; + desc->byte_cnt = length; + desc->buf_ptr = dma_map_single(&pep->pdev->dev, skb->data, length, + DMA_TO_DEVICE); + + skb_tx_timestamp(skb); + + dma_wmb(); + desc->cmd_sts = BUF_OWNED_BY_DMA | TX_GEN_CRC | TX_FIRST_DESC | + TX_ZERO_PADDING | TX_LAST_DESC | TX_EN_INT; + wmb(); + wrl(pep, SDMA_CMD, SDMA_CMD_TXDH | SDMA_CMD_ERD); + + stats->tx_bytes += length; + stats->tx_packets++; + netif_trans_update(dev); + if (pep->tx_ring_size - pep->tx_desc_count <= 1) { + /* We handled the current skb, but now we are out of space.*/ + netif_stop_queue(dev); + } + + return NETDEV_TX_OK; +} + +static int smi_wait_ready(struct pxa168_eth_private *pep) +{ + int i = 0; + + /* wait for the SMI register to become available */ + for (i = 0; rdl(pep, SMI) & SMI_BUSY; i++) { + if (i == PHY_WAIT_ITERATIONS) + return -ETIMEDOUT; + msleep(10); + } + + return 0; +} + +static int pxa168_smi_read(struct mii_bus *bus, int phy_addr, int regnum) +{ + struct pxa168_eth_private *pep = bus->priv; + int i = 0; + int val; + + if (smi_wait_ready(pep)) { + netdev_warn(pep->dev, "pxa168_eth: SMI bus busy timeout\n"); + return -ETIMEDOUT; + } + wrl(pep, SMI, (phy_addr << 16) | (regnum << 21) | SMI_OP_R); + /* now wait for the data to be valid */ + for (i = 0; !((val = rdl(pep, SMI)) & SMI_R_VALID); i++) { + if (i == PHY_WAIT_ITERATIONS) { + netdev_warn(pep->dev, + "pxa168_eth: SMI bus read not valid\n"); + return -ENODEV; + } + msleep(10); + } + + return val & 0xffff; +} + +static int pxa168_smi_write(struct mii_bus *bus, int phy_addr, int regnum, + u16 value) +{ + struct pxa168_eth_private *pep = bus->priv; + + if (smi_wait_ready(pep)) { + netdev_warn(pep->dev, "pxa168_eth: SMI bus busy timeout\n"); + return -ETIMEDOUT; + } + + wrl(pep, SMI, (phy_addr << 16) | (regnum << 21) | + SMI_OP_W | (value & 0xffff)); + + if (smi_wait_ready(pep)) { + netdev_err(pep->dev, "pxa168_eth: SMI bus busy timeout\n"); + return -ETIMEDOUT; + } + + return 0; +} + +#ifdef CONFIG_NET_POLL_CONTROLLER +static void pxa168_eth_netpoll(struct net_device *dev) +{ + disable_irq(dev->irq); + pxa168_eth_int_handler(dev->irq, dev); + enable_irq(dev->irq); +} +#endif + +static void pxa168_get_drvinfo(struct net_device *dev, + struct ethtool_drvinfo *info) +{ + strscpy(info->driver, DRIVER_NAME, sizeof(info->driver)); + strscpy(info->version, DRIVER_VERSION, sizeof(info->version)); + strscpy(info->fw_version, "N/A", sizeof(info->fw_version)); + strscpy(info->bus_info, "N/A", sizeof(info->bus_info)); +} + +static const struct ethtool_ops pxa168_ethtool_ops = { + .get_drvinfo = pxa168_get_drvinfo, + .nway_reset = phy_ethtool_nway_reset, + .get_link = ethtool_op_get_link, + .get_ts_info = ethtool_op_get_ts_info, + .get_link_ksettings = phy_ethtool_get_link_ksettings, + .set_link_ksettings = phy_ethtool_set_link_ksettings, +}; + +static const struct net_device_ops pxa168_eth_netdev_ops = { + .ndo_open = pxa168_eth_open, + .ndo_stop = pxa168_eth_stop, + .ndo_start_xmit = pxa168_eth_start_xmit, + .ndo_set_rx_mode = pxa168_eth_set_rx_mode, + .ndo_set_mac_address = pxa168_eth_set_mac_address, + .ndo_validate_addr = eth_validate_addr, + .ndo_eth_ioctl = phy_do_ioctl, + .ndo_change_mtu = pxa168_eth_change_mtu, + .ndo_tx_timeout = pxa168_eth_tx_timeout, +#ifdef CONFIG_NET_POLL_CONTROLLER + .ndo_poll_controller = pxa168_eth_netpoll, +#endif +}; + +static int pxa168_eth_probe(struct platform_device *pdev) +{ + struct pxa168_eth_private *pep = NULL; + struct net_device *dev = NULL; + struct clk *clk; + struct device_node *np; + int err; + + printk(KERN_NOTICE "PXA168 10/100 Ethernet Driver\n"); + + clk = devm_clk_get(&pdev->dev, NULL); + if (IS_ERR(clk)) { + dev_err(&pdev->dev, "Fast Ethernet failed to get clock\n"); + return -ENODEV; + } + clk_prepare_enable(clk); + + dev = alloc_etherdev(sizeof(struct pxa168_eth_private)); + if (!dev) { + err = -ENOMEM; + goto err_clk; + } + + platform_set_drvdata(pdev, dev); + pep = netdev_priv(dev); + pep->dev = dev; + pep->clk = clk; + + pep->base = devm_platform_ioremap_resource(pdev, 0); + if (IS_ERR(pep->base)) { + err = PTR_ERR(pep->base); + goto err_netdev; + } + + err = platform_get_irq(pdev, 0); + if (err == -EPROBE_DEFER) + goto err_netdev; + BUG_ON(dev->irq < 0); + dev->irq = err; + dev->netdev_ops = &pxa168_eth_netdev_ops; + dev->watchdog_timeo = 2 * HZ; + dev->base_addr = 0; + dev->ethtool_ops = &pxa168_ethtool_ops; + + /* MTU range: 68 - 9500 */ + dev->min_mtu = ETH_MIN_MTU; + dev->max_mtu = 9500; + + INIT_WORK(&pep->tx_timeout_task, pxa168_eth_tx_timeout_task); + + err = of_get_ethdev_address(pdev->dev.of_node, dev); + if (err) { + u8 addr[ETH_ALEN]; + + /* try reading the mac address, if set by the bootloader */ + pxa168_eth_get_mac_address(dev, addr); + if (is_valid_ether_addr(addr)) { + eth_hw_addr_set(dev, addr); + } else { + dev_info(&pdev->dev, "Using random mac address\n"); + eth_hw_addr_random(dev); + } + } + + pep->rx_ring_size = NUM_RX_DESCS; + pep->tx_ring_size = NUM_TX_DESCS; + + pep->pd = dev_get_platdata(&pdev->dev); + if (pep->pd) { + if (pep->pd->rx_queue_size) + pep->rx_ring_size = pep->pd->rx_queue_size; + + if (pep->pd->tx_queue_size) + pep->tx_ring_size = pep->pd->tx_queue_size; + + pep->port_num = pep->pd->port_number; + pep->phy_addr = pep->pd->phy_addr; + pep->phy_speed = pep->pd->speed; + pep->phy_duplex = pep->pd->duplex; + pep->phy_intf = pep->pd->intf; + + if (pep->pd->init) + pep->pd->init(); + } else if (pdev->dev.of_node) { + of_property_read_u32(pdev->dev.of_node, "port-id", + &pep->port_num); + + np = of_parse_phandle(pdev->dev.of_node, "phy-handle", 0); + if (!np) { + dev_err(&pdev->dev, "missing phy-handle\n"); + err = -EINVAL; + goto err_netdev; + } + of_property_read_u32(np, "reg", &pep->phy_addr); + of_node_put(np); + err = of_get_phy_mode(pdev->dev.of_node, &pep->phy_intf); + if (err && err != -ENODEV) + goto err_netdev; + } + + /* Hardware supports only 3 ports */ + BUG_ON(pep->port_num > 2); + netif_napi_add_weight(dev, &pep->napi, pxa168_rx_poll, + pep->rx_ring_size); + + memset(&pep->timeout, 0, sizeof(struct timer_list)); + timer_setup(&pep->timeout, rxq_refill_timer_wrapper, 0); + + pep->smi_bus = mdiobus_alloc(); + if (!pep->smi_bus) { + err = -ENOMEM; + goto err_netdev; + } + pep->smi_bus->priv = pep; + pep->smi_bus->name = "pxa168_eth smi"; + pep->smi_bus->read = pxa168_smi_read; + pep->smi_bus->write = pxa168_smi_write; + snprintf(pep->smi_bus->id, MII_BUS_ID_SIZE, "%s-%d", + pdev->name, pdev->id); + pep->smi_bus->parent = &pdev->dev; + pep->smi_bus->phy_mask = 0xffffffff; + err = mdiobus_register(pep->smi_bus); + if (err) + goto err_free_mdio; + + pep->pdev = pdev; + SET_NETDEV_DEV(dev, &pdev->dev); + pxa168_init_hw(pep); + err = register_netdev(dev); + if (err) + goto err_mdiobus; + return 0; + +err_mdiobus: + mdiobus_unregister(pep->smi_bus); +err_free_mdio: + mdiobus_free(pep->smi_bus); +err_netdev: + free_netdev(dev); +err_clk: + clk_disable_unprepare(clk); + return err; +} + +static int pxa168_eth_remove(struct platform_device *pdev) +{ + struct net_device *dev = platform_get_drvdata(pdev); + struct pxa168_eth_private *pep = netdev_priv(dev); + + cancel_work_sync(&pep->tx_timeout_task); + if (pep->htpr) { + dma_free_coherent(pep->dev->dev.parent, HASH_ADDR_TABLE_SIZE, + pep->htpr, pep->htpr_dma); + pep->htpr = NULL; + } + if (dev->phydev) + phy_disconnect(dev->phydev); + + clk_disable_unprepare(pep->clk); + mdiobus_unregister(pep->smi_bus); + mdiobus_free(pep->smi_bus); + unregister_netdev(dev); + free_netdev(dev); + return 0; +} + +static void pxa168_eth_shutdown(struct platform_device *pdev) +{ + struct net_device *dev = platform_get_drvdata(pdev); + eth_port_reset(dev); +} + +#ifdef CONFIG_PM +static int pxa168_eth_resume(struct platform_device *pdev) +{ + return -ENOSYS; +} + +static int pxa168_eth_suspend(struct platform_device *pdev, pm_message_t state) +{ + return -ENOSYS; +} + +#else +#define pxa168_eth_resume NULL +#define pxa168_eth_suspend NULL +#endif + +static const struct of_device_id pxa168_eth_of_match[] = { + { .compatible = "marvell,pxa168-eth" }, + { }, +}; +MODULE_DEVICE_TABLE(of, pxa168_eth_of_match); + +static struct platform_driver pxa168_eth_driver = { + .probe = pxa168_eth_probe, + .remove = pxa168_eth_remove, + .shutdown = pxa168_eth_shutdown, + .resume = pxa168_eth_resume, + .suspend = pxa168_eth_suspend, + .driver = { + .name = DRIVER_NAME, + .of_match_table = of_match_ptr(pxa168_eth_of_match), + }, +}; + +module_platform_driver(pxa168_eth_driver); + +MODULE_LICENSE("GPL"); +MODULE_DESCRIPTION("Ethernet driver for Marvell PXA168"); +MODULE_ALIAS("platform:pxa168_eth"); diff --git a/drivers/net/ethernet/marvell/skge.c b/drivers/net/ethernet/marvell/skge.c new file mode 100644 index 000000000..1b43704ba --- /dev/null +++ b/drivers/net/ethernet/marvell/skge.c @@ -0,0 +1,4195 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * New driver for Marvell Yukon chipset and SysKonnect Gigabit + * Ethernet adapters. Based on earlier sk98lin, e100 and + * FreeBSD if_sk drivers. + * + * This driver intentionally does not support all the features + * of the original driver such as link fail-over and link management because + * those should be done at higher levels. + * + * Copyright (C) 2004, 2005 Stephen Hemminger <shemminger@osdl.org> + */ + +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + +#include <linux/in.h> +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/moduleparam.h> +#include <linux/netdevice.h> +#include <linux/etherdevice.h> +#include <linux/ethtool.h> +#include <linux/pci.h> +#include <linux/if_vlan.h> +#include <linux/ip.h> +#include <linux/delay.h> +#include <linux/crc32.h> +#include <linux/dma-mapping.h> +#include <linux/debugfs.h> +#include <linux/sched.h> +#include <linux/seq_file.h> +#include <linux/mii.h> +#include <linux/slab.h> +#include <linux/dmi.h> +#include <linux/prefetch.h> +#include <asm/irq.h> + +#include "skge.h" + +#define DRV_NAME "skge" +#define DRV_VERSION "1.14" + +#define DEFAULT_TX_RING_SIZE 128 +#define DEFAULT_RX_RING_SIZE 512 +#define MAX_TX_RING_SIZE 1024 +#define TX_LOW_WATER (MAX_SKB_FRAGS + 1) +#define MAX_RX_RING_SIZE 4096 +#define RX_COPY_THRESHOLD 128 +#define RX_BUF_SIZE 1536 +#define PHY_RETRIES 1000 +#define ETH_JUMBO_MTU 9000 +#define TX_WATCHDOG (5 * HZ) +#define BLINK_MS 250 +#define LINK_HZ HZ + +#define SKGE_EEPROM_MAGIC 0x9933aabb + + +MODULE_DESCRIPTION("SysKonnect Gigabit Ethernet driver"); +MODULE_AUTHOR("Stephen Hemminger <shemminger@linux-foundation.org>"); +MODULE_LICENSE("GPL"); +MODULE_VERSION(DRV_VERSION); + +static const u32 default_msg = (NETIF_MSG_DRV | NETIF_MSG_PROBE | + NETIF_MSG_LINK | NETIF_MSG_IFUP | + NETIF_MSG_IFDOWN); + +static int debug = -1; /* defaults above */ +module_param(debug, int, 0); +MODULE_PARM_DESC(debug, "Debug level (0=none,...,16=all)"); + +static const struct pci_device_id skge_id_table[] = { + { PCI_DEVICE(PCI_VENDOR_ID_3COM, 0x1700) }, /* 3Com 3C940 */ + { PCI_DEVICE(PCI_VENDOR_ID_3COM, 0x80EB) }, /* 3Com 3C940B */ +#ifdef CONFIG_SKGE_GENESIS + { PCI_DEVICE(PCI_VENDOR_ID_SYSKONNECT, 0x4300) }, /* SK-9xx */ +#endif + { PCI_DEVICE(PCI_VENDOR_ID_SYSKONNECT, 0x4320) }, /* SK-98xx V2.0 */ + { PCI_DEVICE(PCI_VENDOR_ID_DLINK, 0x4b01) }, /* D-Link DGE-530T (rev.B) */ + { PCI_DEVICE(PCI_VENDOR_ID_DLINK, 0x4c00) }, /* D-Link DGE-530T */ + { PCI_DEVICE(PCI_VENDOR_ID_DLINK, 0x4302) }, /* D-Link DGE-530T Rev C1 */ + { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4320) }, /* Marvell Yukon 88E8001/8003/8010 */ + { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x5005) }, /* Belkin */ + { PCI_DEVICE(PCI_VENDOR_ID_CNET, 0x434E) }, /* CNet PowerG-2000 */ + { PCI_DEVICE(PCI_VENDOR_ID_LINKSYS, 0x1064) }, /* Linksys EG1064 v2 */ + { PCI_VENDOR_ID_LINKSYS, 0x1032, PCI_ANY_ID, 0x0015 }, /* Linksys EG1032 v2 */ + { 0 } +}; +MODULE_DEVICE_TABLE(pci, skge_id_table); + +static int skge_up(struct net_device *dev); +static int skge_down(struct net_device *dev); +static void skge_phy_reset(struct skge_port *skge); +static void skge_tx_clean(struct net_device *dev); +static int xm_phy_write(struct skge_hw *hw, int port, u16 reg, u16 val); +static int gm_phy_write(struct skge_hw *hw, int port, u16 reg, u16 val); +static void genesis_get_stats(struct skge_port *skge, u64 *data); +static void yukon_get_stats(struct skge_port *skge, u64 *data); +static void yukon_init(struct skge_hw *hw, int port); +static void genesis_mac_init(struct skge_hw *hw, int port); +static void genesis_link_up(struct skge_port *skge); +static void skge_set_multicast(struct net_device *dev); +static irqreturn_t skge_intr(int irq, void *dev_id); + +/* Avoid conditionals by using array */ +static const int txqaddr[] = { Q_XA1, Q_XA2 }; +static const int rxqaddr[] = { Q_R1, Q_R2 }; +static const u32 rxirqmask[] = { IS_R1_F, IS_R2_F }; +static const u32 txirqmask[] = { IS_XA1_F, IS_XA2_F }; +static const u32 napimask[] = { IS_R1_F|IS_XA1_F, IS_R2_F|IS_XA2_F }; +static const u32 portmask[] = { IS_PORT_1, IS_PORT_2 }; + +static inline bool is_genesis(const struct skge_hw *hw) +{ +#ifdef CONFIG_SKGE_GENESIS + return hw->chip_id == CHIP_ID_GENESIS; +#else + return false; +#endif +} + +static int skge_get_regs_len(struct net_device *dev) +{ + return 0x4000; +} + +/* + * Returns copy of whole control register region + * Note: skip RAM address register because accessing it will + * cause bus hangs! + */ +static void skge_get_regs(struct net_device *dev, struct ethtool_regs *regs, + void *p) +{ + const struct skge_port *skge = netdev_priv(dev); + const void __iomem *io = skge->hw->regs; + + regs->version = 1; + memset(p, 0, regs->len); + memcpy_fromio(p, io, B3_RAM_ADDR); + + if (regs->len > B3_RI_WTO_R1) { + memcpy_fromio(p + B3_RI_WTO_R1, io + B3_RI_WTO_R1, + regs->len - B3_RI_WTO_R1); + } +} + +/* Wake on Lan only supported on Yukon chips with rev 1 or above */ +static u32 wol_supported(const struct skge_hw *hw) +{ + if (is_genesis(hw)) + return 0; + + if (hw->chip_id == CHIP_ID_YUKON && hw->chip_rev == 0) + return 0; + + return WAKE_MAGIC | WAKE_PHY; +} + +static void skge_wol_init(struct skge_port *skge) +{ + struct skge_hw *hw = skge->hw; + int port = skge->port; + u16 ctrl; + + skge_write16(hw, B0_CTST, CS_RST_CLR); + skge_write16(hw, SK_REG(port, GMAC_LINK_CTRL), GMLC_RST_CLR); + + /* Turn on Vaux */ + skge_write8(hw, B0_POWER_CTRL, + PC_VAUX_ENA | PC_VCC_ENA | PC_VAUX_ON | PC_VCC_OFF); + + /* WA code for COMA mode -- clear PHY reset */ + if (hw->chip_id == CHIP_ID_YUKON_LITE && + hw->chip_rev >= CHIP_REV_YU_LITE_A3) { + u32 reg = skge_read32(hw, B2_GP_IO); + reg |= GP_DIR_9; + reg &= ~GP_IO_9; + skge_write32(hw, B2_GP_IO, reg); + } + + skge_write32(hw, SK_REG(port, GPHY_CTRL), + GPC_DIS_SLEEP | + GPC_HWCFG_M_3 | GPC_HWCFG_M_2 | GPC_HWCFG_M_1 | GPC_HWCFG_M_0 | + GPC_ANEG_1 | GPC_RST_SET); + + skge_write32(hw, SK_REG(port, GPHY_CTRL), + GPC_DIS_SLEEP | + GPC_HWCFG_M_3 | GPC_HWCFG_M_2 | GPC_HWCFG_M_1 | GPC_HWCFG_M_0 | + GPC_ANEG_1 | GPC_RST_CLR); + + skge_write32(hw, SK_REG(port, GMAC_CTRL), GMC_RST_CLR); + + /* Force to 10/100 skge_reset will re-enable on resume */ + gm_phy_write(hw, port, PHY_MARV_AUNE_ADV, + (PHY_AN_100FULL | PHY_AN_100HALF | + PHY_AN_10FULL | PHY_AN_10HALF | PHY_AN_CSMA)); + /* no 1000 HD/FD */ + gm_phy_write(hw, port, PHY_MARV_1000T_CTRL, 0); + gm_phy_write(hw, port, PHY_MARV_CTRL, + PHY_CT_RESET | PHY_CT_SPS_LSB | PHY_CT_ANE | + PHY_CT_RE_CFG | PHY_CT_DUP_MD); + + + /* Set GMAC to no flow control and auto update for speed/duplex */ + gma_write16(hw, port, GM_GP_CTRL, + GM_GPCR_FC_TX_DIS|GM_GPCR_TX_ENA|GM_GPCR_RX_ENA| + GM_GPCR_DUP_FULL|GM_GPCR_FC_RX_DIS|GM_GPCR_AU_FCT_DIS); + + /* Set WOL address */ + memcpy_toio(hw->regs + WOL_REGS(port, WOL_MAC_ADDR), + skge->netdev->dev_addr, ETH_ALEN); + + /* Turn on appropriate WOL control bits */ + skge_write16(hw, WOL_REGS(port, WOL_CTRL_STAT), WOL_CTL_CLEAR_RESULT); + ctrl = 0; + if (skge->wol & WAKE_PHY) + ctrl |= WOL_CTL_ENA_PME_ON_LINK_CHG|WOL_CTL_ENA_LINK_CHG_UNIT; + else + ctrl |= WOL_CTL_DIS_PME_ON_LINK_CHG|WOL_CTL_DIS_LINK_CHG_UNIT; + + if (skge->wol & WAKE_MAGIC) + ctrl |= WOL_CTL_ENA_PME_ON_MAGIC_PKT|WOL_CTL_ENA_MAGIC_PKT_UNIT; + else + ctrl |= WOL_CTL_DIS_PME_ON_MAGIC_PKT|WOL_CTL_DIS_MAGIC_PKT_UNIT; + + ctrl |= WOL_CTL_DIS_PME_ON_PATTERN|WOL_CTL_DIS_PATTERN_UNIT; + skge_write16(hw, WOL_REGS(port, WOL_CTRL_STAT), ctrl); + + /* block receiver */ + skge_write8(hw, SK_REG(port, RX_GMF_CTRL_T), GMF_RST_SET); +} + +static void skge_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol) +{ + struct skge_port *skge = netdev_priv(dev); + + wol->supported = wol_supported(skge->hw); + wol->wolopts = skge->wol; +} + +static int skge_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol) +{ + struct skge_port *skge = netdev_priv(dev); + struct skge_hw *hw = skge->hw; + + if ((wol->wolopts & ~wol_supported(hw)) || + !device_can_wakeup(&hw->pdev->dev)) + return -EOPNOTSUPP; + + skge->wol = wol->wolopts; + + device_set_wakeup_enable(&hw->pdev->dev, skge->wol); + + return 0; +} + +/* Determine supported/advertised modes based on hardware. + * Note: ethtool ADVERTISED_xxx == SUPPORTED_xxx + */ +static u32 skge_supported_modes(const struct skge_hw *hw) +{ + u32 supported; + + if (hw->copper) { + supported = (SUPPORTED_10baseT_Half | + SUPPORTED_10baseT_Full | + SUPPORTED_100baseT_Half | + SUPPORTED_100baseT_Full | + SUPPORTED_1000baseT_Half | + SUPPORTED_1000baseT_Full | + SUPPORTED_Autoneg | + SUPPORTED_TP); + + if (is_genesis(hw)) + supported &= ~(SUPPORTED_10baseT_Half | + SUPPORTED_10baseT_Full | + SUPPORTED_100baseT_Half | + SUPPORTED_100baseT_Full); + + else if (hw->chip_id == CHIP_ID_YUKON) + supported &= ~SUPPORTED_1000baseT_Half; + } else + supported = (SUPPORTED_1000baseT_Full | + SUPPORTED_1000baseT_Half | + SUPPORTED_FIBRE | + SUPPORTED_Autoneg); + + return supported; +} + +static int skge_get_link_ksettings(struct net_device *dev, + struct ethtool_link_ksettings *cmd) +{ + struct skge_port *skge = netdev_priv(dev); + struct skge_hw *hw = skge->hw; + u32 supported, advertising; + + supported = skge_supported_modes(hw); + + if (hw->copper) { + cmd->base.port = PORT_TP; + cmd->base.phy_address = hw->phy_addr; + } else + cmd->base.port = PORT_FIBRE; + + advertising = skge->advertising; + cmd->base.autoneg = skge->autoneg; + cmd->base.speed = skge->speed; + cmd->base.duplex = skge->duplex; + + ethtool_convert_legacy_u32_to_link_mode(cmd->link_modes.supported, + supported); + ethtool_convert_legacy_u32_to_link_mode(cmd->link_modes.advertising, + advertising); + + return 0; +} + +static int skge_set_link_ksettings(struct net_device *dev, + const struct ethtool_link_ksettings *cmd) +{ + struct skge_port *skge = netdev_priv(dev); + const struct skge_hw *hw = skge->hw; + u32 supported = skge_supported_modes(hw); + int err = 0; + u32 advertising; + + ethtool_convert_link_mode_to_legacy_u32(&advertising, + cmd->link_modes.advertising); + + if (cmd->base.autoneg == AUTONEG_ENABLE) { + advertising = supported; + skge->duplex = -1; + skge->speed = -1; + } else { + u32 setting; + u32 speed = cmd->base.speed; + + switch (speed) { + case SPEED_1000: + if (cmd->base.duplex == DUPLEX_FULL) + setting = SUPPORTED_1000baseT_Full; + else if (cmd->base.duplex == DUPLEX_HALF) + setting = SUPPORTED_1000baseT_Half; + else + return -EINVAL; + break; + case SPEED_100: + if (cmd->base.duplex == DUPLEX_FULL) + setting = SUPPORTED_100baseT_Full; + else if (cmd->base.duplex == DUPLEX_HALF) + setting = SUPPORTED_100baseT_Half; + else + return -EINVAL; + break; + + case SPEED_10: + if (cmd->base.duplex == DUPLEX_FULL) + setting = SUPPORTED_10baseT_Full; + else if (cmd->base.duplex == DUPLEX_HALF) + setting = SUPPORTED_10baseT_Half; + else + return -EINVAL; + break; + default: + return -EINVAL; + } + + if ((setting & supported) == 0) + return -EINVAL; + + skge->speed = speed; + skge->duplex = cmd->base.duplex; + } + + skge->autoneg = cmd->base.autoneg; + skge->advertising = advertising; + + if (netif_running(dev)) { + skge_down(dev); + err = skge_up(dev); + if (err) { + dev_close(dev); + return err; + } + } + + return 0; +} + +static void skge_get_drvinfo(struct net_device *dev, + struct ethtool_drvinfo *info) +{ + struct skge_port *skge = netdev_priv(dev); + + strscpy(info->driver, DRV_NAME, sizeof(info->driver)); + strscpy(info->version, DRV_VERSION, sizeof(info->version)); + strscpy(info->bus_info, pci_name(skge->hw->pdev), + sizeof(info->bus_info)); +} + +static const struct skge_stat { + char name[ETH_GSTRING_LEN]; + u16 xmac_offset; + u16 gma_offset; +} skge_stats[] = { + { "tx_bytes", XM_TXO_OK_HI, GM_TXO_OK_HI }, + { "rx_bytes", XM_RXO_OK_HI, GM_RXO_OK_HI }, + + { "tx_broadcast", XM_TXF_BC_OK, GM_TXF_BC_OK }, + { "rx_broadcast", XM_RXF_BC_OK, GM_RXF_BC_OK }, + { "tx_multicast", XM_TXF_MC_OK, GM_TXF_MC_OK }, + { "rx_multicast", XM_RXF_MC_OK, GM_RXF_MC_OK }, + { "tx_unicast", XM_TXF_UC_OK, GM_TXF_UC_OK }, + { "rx_unicast", XM_RXF_UC_OK, GM_RXF_UC_OK }, + { "tx_mac_pause", XM_TXF_MPAUSE, GM_TXF_MPAUSE }, + { "rx_mac_pause", XM_RXF_MPAUSE, GM_RXF_MPAUSE }, + + { "collisions", XM_TXF_SNG_COL, GM_TXF_SNG_COL }, + { "multi_collisions", XM_TXF_MUL_COL, GM_TXF_MUL_COL }, + { "aborted", XM_TXF_ABO_COL, GM_TXF_ABO_COL }, + { "late_collision", XM_TXF_LAT_COL, GM_TXF_LAT_COL }, + { "fifo_underrun", XM_TXE_FIFO_UR, GM_TXE_FIFO_UR }, + { "fifo_overflow", XM_RXE_FIFO_OV, GM_RXE_FIFO_OV }, + + { "rx_toolong", XM_RXF_LNG_ERR, GM_RXF_LNG_ERR }, + { "rx_jabber", XM_RXF_JAB_PKT, GM_RXF_JAB_PKT }, + { "rx_runt", XM_RXE_RUNT, GM_RXE_FRAG }, + { "rx_too_long", XM_RXF_LNG_ERR, GM_RXF_LNG_ERR }, + { "rx_fcs_error", XM_RXF_FCS_ERR, GM_RXF_FCS_ERR }, +}; + +static int skge_get_sset_count(struct net_device *dev, int sset) +{ + switch (sset) { + case ETH_SS_STATS: + return ARRAY_SIZE(skge_stats); + default: + return -EOPNOTSUPP; + } +} + +static void skge_get_ethtool_stats(struct net_device *dev, + struct ethtool_stats *stats, u64 *data) +{ + struct skge_port *skge = netdev_priv(dev); + + if (is_genesis(skge->hw)) + genesis_get_stats(skge, data); + else + yukon_get_stats(skge, data); +} + +/* Use hardware MIB variables for critical path statistics and + * transmit feedback not reported at interrupt. + * Other errors are accounted for in interrupt handler. + */ +static struct net_device_stats *skge_get_stats(struct net_device *dev) +{ + struct skge_port *skge = netdev_priv(dev); + u64 data[ARRAY_SIZE(skge_stats)]; + + if (is_genesis(skge->hw)) + genesis_get_stats(skge, data); + else + yukon_get_stats(skge, data); + + dev->stats.tx_bytes = data[0]; + dev->stats.rx_bytes = data[1]; + dev->stats.tx_packets = data[2] + data[4] + data[6]; + dev->stats.rx_packets = data[3] + data[5] + data[7]; + dev->stats.multicast = data[3] + data[5]; + dev->stats.collisions = data[10]; + dev->stats.tx_aborted_errors = data[12]; + + return &dev->stats; +} + +static void skge_get_strings(struct net_device *dev, u32 stringset, u8 *data) +{ + int i; + + switch (stringset) { + case ETH_SS_STATS: + for (i = 0; i < ARRAY_SIZE(skge_stats); i++) + memcpy(data + i * ETH_GSTRING_LEN, + skge_stats[i].name, ETH_GSTRING_LEN); + break; + } +} + +static void skge_get_ring_param(struct net_device *dev, + struct ethtool_ringparam *p, + struct kernel_ethtool_ringparam *kernel_p, + struct netlink_ext_ack *extack) +{ + struct skge_port *skge = netdev_priv(dev); + + p->rx_max_pending = MAX_RX_RING_SIZE; + p->tx_max_pending = MAX_TX_RING_SIZE; + + p->rx_pending = skge->rx_ring.count; + p->tx_pending = skge->tx_ring.count; +} + +static int skge_set_ring_param(struct net_device *dev, + struct ethtool_ringparam *p, + struct kernel_ethtool_ringparam *kernel_p, + struct netlink_ext_ack *extack) +{ + struct skge_port *skge = netdev_priv(dev); + int err = 0; + + if (p->rx_pending == 0 || p->rx_pending > MAX_RX_RING_SIZE || + p->tx_pending < TX_LOW_WATER || p->tx_pending > MAX_TX_RING_SIZE) + return -EINVAL; + + skge->rx_ring.count = p->rx_pending; + skge->tx_ring.count = p->tx_pending; + + if (netif_running(dev)) { + skge_down(dev); + err = skge_up(dev); + if (err) + dev_close(dev); + } + + return err; +} + +static u32 skge_get_msglevel(struct net_device *netdev) +{ + struct skge_port *skge = netdev_priv(netdev); + return skge->msg_enable; +} + +static void skge_set_msglevel(struct net_device *netdev, u32 value) +{ + struct skge_port *skge = netdev_priv(netdev); + skge->msg_enable = value; +} + +static int skge_nway_reset(struct net_device *dev) +{ + struct skge_port *skge = netdev_priv(dev); + + if (skge->autoneg != AUTONEG_ENABLE || !netif_running(dev)) + return -EINVAL; + + skge_phy_reset(skge); + return 0; +} + +static void skge_get_pauseparam(struct net_device *dev, + struct ethtool_pauseparam *ecmd) +{ + struct skge_port *skge = netdev_priv(dev); + + ecmd->rx_pause = ((skge->flow_control == FLOW_MODE_SYMMETRIC) || + (skge->flow_control == FLOW_MODE_SYM_OR_REM)); + ecmd->tx_pause = (ecmd->rx_pause || + (skge->flow_control == FLOW_MODE_LOC_SEND)); + + ecmd->autoneg = ecmd->rx_pause || ecmd->tx_pause; +} + +static int skge_set_pauseparam(struct net_device *dev, + struct ethtool_pauseparam *ecmd) +{ + struct skge_port *skge = netdev_priv(dev); + struct ethtool_pauseparam old; + int err = 0; + + skge_get_pauseparam(dev, &old); + + if (ecmd->autoneg != old.autoneg) + skge->flow_control = ecmd->autoneg ? FLOW_MODE_NONE : FLOW_MODE_SYMMETRIC; + else { + if (ecmd->rx_pause && ecmd->tx_pause) + skge->flow_control = FLOW_MODE_SYMMETRIC; + else if (ecmd->rx_pause && !ecmd->tx_pause) + skge->flow_control = FLOW_MODE_SYM_OR_REM; + else if (!ecmd->rx_pause && ecmd->tx_pause) + skge->flow_control = FLOW_MODE_LOC_SEND; + else + skge->flow_control = FLOW_MODE_NONE; + } + + if (netif_running(dev)) { + skge_down(dev); + err = skge_up(dev); + if (err) { + dev_close(dev); + return err; + } + } + + return 0; +} + +/* Chip internal frequency for clock calculations */ +static inline u32 hwkhz(const struct skge_hw *hw) +{ + return is_genesis(hw) ? 53125 : 78125; +} + +/* Chip HZ to microseconds */ +static inline u32 skge_clk2usec(const struct skge_hw *hw, u32 ticks) +{ + return (ticks * 1000) / hwkhz(hw); +} + +/* Microseconds to chip HZ */ +static inline u32 skge_usecs2clk(const struct skge_hw *hw, u32 usec) +{ + return hwkhz(hw) * usec / 1000; +} + +static int skge_get_coalesce(struct net_device *dev, + struct ethtool_coalesce *ecmd, + struct kernel_ethtool_coalesce *kernel_coal, + struct netlink_ext_ack *extack) +{ + struct skge_port *skge = netdev_priv(dev); + struct skge_hw *hw = skge->hw; + int port = skge->port; + + ecmd->rx_coalesce_usecs = 0; + ecmd->tx_coalesce_usecs = 0; + + if (skge_read32(hw, B2_IRQM_CTRL) & TIM_START) { + u32 delay = skge_clk2usec(hw, skge_read32(hw, B2_IRQM_INI)); + u32 msk = skge_read32(hw, B2_IRQM_MSK); + + if (msk & rxirqmask[port]) + ecmd->rx_coalesce_usecs = delay; + if (msk & txirqmask[port]) + ecmd->tx_coalesce_usecs = delay; + } + + return 0; +} + +/* Note: interrupt timer is per board, but can turn on/off per port */ +static int skge_set_coalesce(struct net_device *dev, + struct ethtool_coalesce *ecmd, + struct kernel_ethtool_coalesce *kernel_coal, + struct netlink_ext_ack *extack) +{ + struct skge_port *skge = netdev_priv(dev); + struct skge_hw *hw = skge->hw; + int port = skge->port; + u32 msk = skge_read32(hw, B2_IRQM_MSK); + u32 delay = 25; + + if (ecmd->rx_coalesce_usecs == 0) + msk &= ~rxirqmask[port]; + else if (ecmd->rx_coalesce_usecs < 25 || + ecmd->rx_coalesce_usecs > 33333) + return -EINVAL; + else { + msk |= rxirqmask[port]; + delay = ecmd->rx_coalesce_usecs; + } + + if (ecmd->tx_coalesce_usecs == 0) + msk &= ~txirqmask[port]; + else if (ecmd->tx_coalesce_usecs < 25 || + ecmd->tx_coalesce_usecs > 33333) + return -EINVAL; + else { + msk |= txirqmask[port]; + delay = min(delay, ecmd->rx_coalesce_usecs); + } + + skge_write32(hw, B2_IRQM_MSK, msk); + if (msk == 0) + skge_write32(hw, B2_IRQM_CTRL, TIM_STOP); + else { + skge_write32(hw, B2_IRQM_INI, skge_usecs2clk(hw, delay)); + skge_write32(hw, B2_IRQM_CTRL, TIM_START); + } + return 0; +} + +enum led_mode { LED_MODE_OFF, LED_MODE_ON, LED_MODE_TST }; +static void skge_led(struct skge_port *skge, enum led_mode mode) +{ + struct skge_hw *hw = skge->hw; + int port = skge->port; + + spin_lock_bh(&hw->phy_lock); + if (is_genesis(hw)) { + switch (mode) { + case LED_MODE_OFF: + if (hw->phy_type == SK_PHY_BCOM) + xm_phy_write(hw, port, PHY_BCOM_P_EXT_CTRL, PHY_B_PEC_LED_OFF); + else { + skge_write32(hw, SK_REG(port, TX_LED_VAL), 0); + skge_write8(hw, SK_REG(port, TX_LED_CTRL), LED_T_OFF); + } + skge_write8(hw, SK_REG(port, LNK_LED_REG), LINKLED_OFF); + skge_write32(hw, SK_REG(port, RX_LED_VAL), 0); + skge_write8(hw, SK_REG(port, RX_LED_CTRL), LED_T_OFF); + break; + + case LED_MODE_ON: + skge_write8(hw, SK_REG(port, LNK_LED_REG), LINKLED_ON); + skge_write8(hw, SK_REG(port, LNK_LED_REG), LINKLED_LINKSYNC_ON); + + skge_write8(hw, SK_REG(port, RX_LED_CTRL), LED_START); + skge_write8(hw, SK_REG(port, TX_LED_CTRL), LED_START); + + break; + + case LED_MODE_TST: + skge_write8(hw, SK_REG(port, RX_LED_TST), LED_T_ON); + skge_write32(hw, SK_REG(port, RX_LED_VAL), 100); + skge_write8(hw, SK_REG(port, RX_LED_CTRL), LED_START); + + if (hw->phy_type == SK_PHY_BCOM) + xm_phy_write(hw, port, PHY_BCOM_P_EXT_CTRL, PHY_B_PEC_LED_ON); + else { + skge_write8(hw, SK_REG(port, TX_LED_TST), LED_T_ON); + skge_write32(hw, SK_REG(port, TX_LED_VAL), 100); + skge_write8(hw, SK_REG(port, TX_LED_CTRL), LED_START); + } + + } + } else { + switch (mode) { + case LED_MODE_OFF: + gm_phy_write(hw, port, PHY_MARV_LED_CTRL, 0); + gm_phy_write(hw, port, PHY_MARV_LED_OVER, + PHY_M_LED_MO_DUP(MO_LED_OFF) | + PHY_M_LED_MO_10(MO_LED_OFF) | + PHY_M_LED_MO_100(MO_LED_OFF) | + PHY_M_LED_MO_1000(MO_LED_OFF) | + PHY_M_LED_MO_RX(MO_LED_OFF)); + break; + case LED_MODE_ON: + gm_phy_write(hw, port, PHY_MARV_LED_CTRL, + PHY_M_LED_PULS_DUR(PULS_170MS) | + PHY_M_LED_BLINK_RT(BLINK_84MS) | + PHY_M_LEDC_TX_CTRL | + PHY_M_LEDC_DP_CTRL); + + gm_phy_write(hw, port, PHY_MARV_LED_OVER, + PHY_M_LED_MO_RX(MO_LED_OFF) | + (skge->speed == SPEED_100 ? + PHY_M_LED_MO_100(MO_LED_ON) : 0)); + break; + case LED_MODE_TST: + gm_phy_write(hw, port, PHY_MARV_LED_CTRL, 0); + gm_phy_write(hw, port, PHY_MARV_LED_OVER, + PHY_M_LED_MO_DUP(MO_LED_ON) | + PHY_M_LED_MO_10(MO_LED_ON) | + PHY_M_LED_MO_100(MO_LED_ON) | + PHY_M_LED_MO_1000(MO_LED_ON) | + PHY_M_LED_MO_RX(MO_LED_ON)); + } + } + spin_unlock_bh(&hw->phy_lock); +} + +/* blink LED's for finding board */ +static int skge_set_phys_id(struct net_device *dev, + enum ethtool_phys_id_state state) +{ + struct skge_port *skge = netdev_priv(dev); + + switch (state) { + case ETHTOOL_ID_ACTIVE: + return 2; /* cycle on/off twice per second */ + + case ETHTOOL_ID_ON: + skge_led(skge, LED_MODE_TST); + break; + + case ETHTOOL_ID_OFF: + skge_led(skge, LED_MODE_OFF); + break; + + case ETHTOOL_ID_INACTIVE: + /* back to regular LED state */ + skge_led(skge, netif_running(dev) ? LED_MODE_ON : LED_MODE_OFF); + } + + return 0; +} + +static int skge_get_eeprom_len(struct net_device *dev) +{ + struct skge_port *skge = netdev_priv(dev); + u32 reg2; + + pci_read_config_dword(skge->hw->pdev, PCI_DEV_REG2, ®2); + return 1 << (((reg2 & PCI_VPD_ROM_SZ) >> 14) + 8); +} + +static u32 skge_vpd_read(struct pci_dev *pdev, int cap, u16 offset) +{ + u32 val; + + pci_write_config_word(pdev, cap + PCI_VPD_ADDR, offset); + + do { + pci_read_config_word(pdev, cap + PCI_VPD_ADDR, &offset); + } while (!(offset & PCI_VPD_ADDR_F)); + + pci_read_config_dword(pdev, cap + PCI_VPD_DATA, &val); + return val; +} + +static void skge_vpd_write(struct pci_dev *pdev, int cap, u16 offset, u32 val) +{ + pci_write_config_dword(pdev, cap + PCI_VPD_DATA, val); + pci_write_config_word(pdev, cap + PCI_VPD_ADDR, + offset | PCI_VPD_ADDR_F); + + do { + pci_read_config_word(pdev, cap + PCI_VPD_ADDR, &offset); + } while (offset & PCI_VPD_ADDR_F); +} + +static int skge_get_eeprom(struct net_device *dev, struct ethtool_eeprom *eeprom, + u8 *data) +{ + struct skge_port *skge = netdev_priv(dev); + struct pci_dev *pdev = skge->hw->pdev; + int cap = pci_find_capability(pdev, PCI_CAP_ID_VPD); + int length = eeprom->len; + u16 offset = eeprom->offset; + + if (!cap) + return -EINVAL; + + eeprom->magic = SKGE_EEPROM_MAGIC; + + while (length > 0) { + u32 val = skge_vpd_read(pdev, cap, offset); + int n = min_t(int, length, sizeof(val)); + + memcpy(data, &val, n); + length -= n; + data += n; + offset += n; + } + return 0; +} + +static int skge_set_eeprom(struct net_device *dev, struct ethtool_eeprom *eeprom, + u8 *data) +{ + struct skge_port *skge = netdev_priv(dev); + struct pci_dev *pdev = skge->hw->pdev; + int cap = pci_find_capability(pdev, PCI_CAP_ID_VPD); + int length = eeprom->len; + u16 offset = eeprom->offset; + + if (!cap) + return -EINVAL; + + if (eeprom->magic != SKGE_EEPROM_MAGIC) + return -EINVAL; + + while (length > 0) { + u32 val; + int n = min_t(int, length, sizeof(val)); + + if (n < sizeof(val)) + val = skge_vpd_read(pdev, cap, offset); + memcpy(&val, data, n); + + skge_vpd_write(pdev, cap, offset, val); + + length -= n; + data += n; + offset += n; + } + return 0; +} + +static const struct ethtool_ops skge_ethtool_ops = { + .supported_coalesce_params = ETHTOOL_COALESCE_USECS, + .get_drvinfo = skge_get_drvinfo, + .get_regs_len = skge_get_regs_len, + .get_regs = skge_get_regs, + .get_wol = skge_get_wol, + .set_wol = skge_set_wol, + .get_msglevel = skge_get_msglevel, + .set_msglevel = skge_set_msglevel, + .nway_reset = skge_nway_reset, + .get_link = ethtool_op_get_link, + .get_eeprom_len = skge_get_eeprom_len, + .get_eeprom = skge_get_eeprom, + .set_eeprom = skge_set_eeprom, + .get_ringparam = skge_get_ring_param, + .set_ringparam = skge_set_ring_param, + .get_pauseparam = skge_get_pauseparam, + .set_pauseparam = skge_set_pauseparam, + .get_coalesce = skge_get_coalesce, + .set_coalesce = skge_set_coalesce, + .get_strings = skge_get_strings, + .set_phys_id = skge_set_phys_id, + .get_sset_count = skge_get_sset_count, + .get_ethtool_stats = skge_get_ethtool_stats, + .get_link_ksettings = skge_get_link_ksettings, + .set_link_ksettings = skge_set_link_ksettings, +}; + +/* + * Allocate ring elements and chain them together + * One-to-one association of board descriptors with ring elements + */ +static int skge_ring_alloc(struct skge_ring *ring, void *vaddr, u32 base) +{ + struct skge_tx_desc *d; + struct skge_element *e; + int i; + + ring->start = kcalloc(ring->count, sizeof(*e), GFP_KERNEL); + if (!ring->start) + return -ENOMEM; + + for (i = 0, e = ring->start, d = vaddr; i < ring->count; i++, e++, d++) { + e->desc = d; + if (i == ring->count - 1) { + e->next = ring->start; + d->next_offset = base; + } else { + e->next = e + 1; + d->next_offset = base + (i+1) * sizeof(*d); + } + } + ring->to_use = ring->to_clean = ring->start; + + return 0; +} + +/* Allocate and setup a new buffer for receiving */ +static int skge_rx_setup(struct skge_port *skge, struct skge_element *e, + struct sk_buff *skb, unsigned int bufsize) +{ + struct skge_rx_desc *rd = e->desc; + dma_addr_t map; + + map = dma_map_single(&skge->hw->pdev->dev, skb->data, bufsize, + DMA_FROM_DEVICE); + + if (dma_mapping_error(&skge->hw->pdev->dev, map)) + return -1; + + rd->dma_lo = lower_32_bits(map); + rd->dma_hi = upper_32_bits(map); + e->skb = skb; + rd->csum1_start = ETH_HLEN; + rd->csum2_start = ETH_HLEN; + rd->csum1 = 0; + rd->csum2 = 0; + + wmb(); + + rd->control = BMU_OWN | BMU_STF | BMU_IRQ_EOF | BMU_TCP_CHECK | bufsize; + dma_unmap_addr_set(e, mapaddr, map); + dma_unmap_len_set(e, maplen, bufsize); + return 0; +} + +/* Resume receiving using existing skb, + * Note: DMA address is not changed by chip. + * MTU not changed while receiver active. + */ +static inline void skge_rx_reuse(struct skge_element *e, unsigned int size) +{ + struct skge_rx_desc *rd = e->desc; + + rd->csum2 = 0; + rd->csum2_start = ETH_HLEN; + + wmb(); + + rd->control = BMU_OWN | BMU_STF | BMU_IRQ_EOF | BMU_TCP_CHECK | size; +} + + +/* Free all buffers in receive ring, assumes receiver stopped */ +static void skge_rx_clean(struct skge_port *skge) +{ + struct skge_hw *hw = skge->hw; + struct skge_ring *ring = &skge->rx_ring; + struct skge_element *e; + + e = ring->start; + do { + struct skge_rx_desc *rd = e->desc; + rd->control = 0; + if (e->skb) { + dma_unmap_single(&hw->pdev->dev, + dma_unmap_addr(e, mapaddr), + dma_unmap_len(e, maplen), + DMA_FROM_DEVICE); + dev_kfree_skb(e->skb); + e->skb = NULL; + } + } while ((e = e->next) != ring->start); +} + + +/* Allocate buffers for receive ring + * For receive: to_clean is next received frame. + */ +static int skge_rx_fill(struct net_device *dev) +{ + struct skge_port *skge = netdev_priv(dev); + struct skge_ring *ring = &skge->rx_ring; + struct skge_element *e; + + e = ring->start; + do { + struct sk_buff *skb; + + skb = __netdev_alloc_skb(dev, skge->rx_buf_size + NET_IP_ALIGN, + GFP_KERNEL); + if (!skb) + return -ENOMEM; + + skb_reserve(skb, NET_IP_ALIGN); + if (skge_rx_setup(skge, e, skb, skge->rx_buf_size) < 0) { + dev_kfree_skb(skb); + return -EIO; + } + } while ((e = e->next) != ring->start); + + ring->to_clean = ring->start; + return 0; +} + +static const char *skge_pause(enum pause_status status) +{ + switch (status) { + case FLOW_STAT_NONE: + return "none"; + case FLOW_STAT_REM_SEND: + return "rx only"; + case FLOW_STAT_LOC_SEND: + return "tx_only"; + case FLOW_STAT_SYMMETRIC: /* Both station may send PAUSE */ + return "both"; + default: + return "indeterminated"; + } +} + + +static void skge_link_up(struct skge_port *skge) +{ + skge_write8(skge->hw, SK_REG(skge->port, LNK_LED_REG), + LED_BLK_OFF|LED_SYNC_OFF|LED_REG_ON); + + netif_carrier_on(skge->netdev); + netif_wake_queue(skge->netdev); + + netif_info(skge, link, skge->netdev, + "Link is up at %d Mbps, %s duplex, flow control %s\n", + skge->speed, + skge->duplex == DUPLEX_FULL ? "full" : "half", + skge_pause(skge->flow_status)); +} + +static void skge_link_down(struct skge_port *skge) +{ + skge_write8(skge->hw, SK_REG(skge->port, LNK_LED_REG), LED_REG_OFF); + netif_carrier_off(skge->netdev); + netif_stop_queue(skge->netdev); + + netif_info(skge, link, skge->netdev, "Link is down\n"); +} + +static void xm_link_down(struct skge_hw *hw, int port) +{ + struct net_device *dev = hw->dev[port]; + struct skge_port *skge = netdev_priv(dev); + + xm_write16(hw, port, XM_IMSK, XM_IMSK_DISABLE); + + if (netif_carrier_ok(dev)) + skge_link_down(skge); +} + +static int __xm_phy_read(struct skge_hw *hw, int port, u16 reg, u16 *val) +{ + int i; + + xm_write16(hw, port, XM_PHY_ADDR, reg | hw->phy_addr); + *val = xm_read16(hw, port, XM_PHY_DATA); + + if (hw->phy_type == SK_PHY_XMAC) + goto ready; + + for (i = 0; i < PHY_RETRIES; i++) { + if (xm_read16(hw, port, XM_MMU_CMD) & XM_MMU_PHY_RDY) + goto ready; + udelay(1); + } + + return -ETIMEDOUT; + ready: + *val = xm_read16(hw, port, XM_PHY_DATA); + + return 0; +} + +static u16 xm_phy_read(struct skge_hw *hw, int port, u16 reg) +{ + u16 v = 0; + if (__xm_phy_read(hw, port, reg, &v)) + pr_warn("%s: phy read timed out\n", hw->dev[port]->name); + return v; +} + +static int xm_phy_write(struct skge_hw *hw, int port, u16 reg, u16 val) +{ + int i; + + xm_write16(hw, port, XM_PHY_ADDR, reg | hw->phy_addr); + for (i = 0; i < PHY_RETRIES; i++) { + if (!(xm_read16(hw, port, XM_MMU_CMD) & XM_MMU_PHY_BUSY)) + goto ready; + udelay(1); + } + return -EIO; + + ready: + xm_write16(hw, port, XM_PHY_DATA, val); + for (i = 0; i < PHY_RETRIES; i++) { + if (!(xm_read16(hw, port, XM_MMU_CMD) & XM_MMU_PHY_BUSY)) + return 0; + udelay(1); + } + return -ETIMEDOUT; +} + +static void genesis_init(struct skge_hw *hw) +{ + /* set blink source counter */ + skge_write32(hw, B2_BSC_INI, (SK_BLK_DUR * SK_FACT_53) / 100); + skge_write8(hw, B2_BSC_CTRL, BSC_START); + + /* configure mac arbiter */ + skge_write16(hw, B3_MA_TO_CTRL, MA_RST_CLR); + + /* configure mac arbiter timeout values */ + skge_write8(hw, B3_MA_TOINI_RX1, SK_MAC_TO_53); + skge_write8(hw, B3_MA_TOINI_RX2, SK_MAC_TO_53); + skge_write8(hw, B3_MA_TOINI_TX1, SK_MAC_TO_53); + skge_write8(hw, B3_MA_TOINI_TX2, SK_MAC_TO_53); + + skge_write8(hw, B3_MA_RCINI_RX1, 0); + skge_write8(hw, B3_MA_RCINI_RX2, 0); + skge_write8(hw, B3_MA_RCINI_TX1, 0); + skge_write8(hw, B3_MA_RCINI_TX2, 0); + + /* configure packet arbiter timeout */ + skge_write16(hw, B3_PA_CTRL, PA_RST_CLR); + skge_write16(hw, B3_PA_TOINI_RX1, SK_PKT_TO_MAX); + skge_write16(hw, B3_PA_TOINI_TX1, SK_PKT_TO_MAX); + skge_write16(hw, B3_PA_TOINI_RX2, SK_PKT_TO_MAX); + skge_write16(hw, B3_PA_TOINI_TX2, SK_PKT_TO_MAX); +} + +static void genesis_reset(struct skge_hw *hw, int port) +{ + static const u8 zero[8] = { 0 }; + u32 reg; + + skge_write8(hw, SK_REG(port, GMAC_IRQ_MSK), 0); + + /* reset the statistics module */ + xm_write32(hw, port, XM_GP_PORT, XM_GP_RES_STAT); + xm_write16(hw, port, XM_IMSK, XM_IMSK_DISABLE); + xm_write32(hw, port, XM_MODE, 0); /* clear Mode Reg */ + xm_write16(hw, port, XM_TX_CMD, 0); /* reset TX CMD Reg */ + xm_write16(hw, port, XM_RX_CMD, 0); /* reset RX CMD Reg */ + + /* disable Broadcom PHY IRQ */ + if (hw->phy_type == SK_PHY_BCOM) + xm_write16(hw, port, PHY_BCOM_INT_MASK, 0xffff); + + xm_outhash(hw, port, XM_HSM, zero); + + /* Flush TX and RX fifo */ + reg = xm_read32(hw, port, XM_MODE); + xm_write32(hw, port, XM_MODE, reg | XM_MD_FTF); + xm_write32(hw, port, XM_MODE, reg | XM_MD_FRF); +} + +/* Convert mode to MII values */ +static const u16 phy_pause_map[] = { + [FLOW_MODE_NONE] = 0, + [FLOW_MODE_LOC_SEND] = PHY_AN_PAUSE_ASYM, + [FLOW_MODE_SYMMETRIC] = PHY_AN_PAUSE_CAP, + [FLOW_MODE_SYM_OR_REM] = PHY_AN_PAUSE_CAP | PHY_AN_PAUSE_ASYM, +}; + +/* special defines for FIBER (88E1011S only) */ +static const u16 fiber_pause_map[] = { + [FLOW_MODE_NONE] = PHY_X_P_NO_PAUSE, + [FLOW_MODE_LOC_SEND] = PHY_X_P_ASYM_MD, + [FLOW_MODE_SYMMETRIC] = PHY_X_P_SYM_MD, + [FLOW_MODE_SYM_OR_REM] = PHY_X_P_BOTH_MD, +}; + + +/* Check status of Broadcom phy link */ +static void bcom_check_link(struct skge_hw *hw, int port) +{ + struct net_device *dev = hw->dev[port]; + struct skge_port *skge = netdev_priv(dev); + u16 status; + + /* read twice because of latch */ + xm_phy_read(hw, port, PHY_BCOM_STAT); + status = xm_phy_read(hw, port, PHY_BCOM_STAT); + + if ((status & PHY_ST_LSYNC) == 0) { + xm_link_down(hw, port); + return; + } + + if (skge->autoneg == AUTONEG_ENABLE) { + u16 lpa, aux; + + if (!(status & PHY_ST_AN_OVER)) + return; + + lpa = xm_phy_read(hw, port, PHY_XMAC_AUNE_LP); + if (lpa & PHY_B_AN_RF) { + netdev_notice(dev, "remote fault\n"); + return; + } + + aux = xm_phy_read(hw, port, PHY_BCOM_AUX_STAT); + + /* Check Duplex mismatch */ + switch (aux & PHY_B_AS_AN_RES_MSK) { + case PHY_B_RES_1000FD: + skge->duplex = DUPLEX_FULL; + break; + case PHY_B_RES_1000HD: + skge->duplex = DUPLEX_HALF; + break; + default: + netdev_notice(dev, "duplex mismatch\n"); + return; + } + + /* We are using IEEE 802.3z/D5.0 Table 37-4 */ + switch (aux & PHY_B_AS_PAUSE_MSK) { + case PHY_B_AS_PAUSE_MSK: + skge->flow_status = FLOW_STAT_SYMMETRIC; + break; + case PHY_B_AS_PRR: + skge->flow_status = FLOW_STAT_REM_SEND; + break; + case PHY_B_AS_PRT: + skge->flow_status = FLOW_STAT_LOC_SEND; + break; + default: + skge->flow_status = FLOW_STAT_NONE; + } + skge->speed = SPEED_1000; + } + + if (!netif_carrier_ok(dev)) + genesis_link_up(skge); +} + +/* Broadcom 5400 only supports giagabit! SysKonnect did not put an additional + * Phy on for 100 or 10Mbit operation + */ +static void bcom_phy_init(struct skge_port *skge) +{ + struct skge_hw *hw = skge->hw; + int port = skge->port; + int i; + u16 id1, r, ext, ctl; + + /* magic workaround patterns for Broadcom */ + static const struct { + u16 reg; + u16 val; + } A1hack[] = { + { 0x18, 0x0c20 }, { 0x17, 0x0012 }, { 0x15, 0x1104 }, + { 0x17, 0x0013 }, { 0x15, 0x0404 }, { 0x17, 0x8006 }, + { 0x15, 0x0132 }, { 0x17, 0x8006 }, { 0x15, 0x0232 }, + { 0x17, 0x800D }, { 0x15, 0x000F }, { 0x18, 0x0420 }, + }, C0hack[] = { + { 0x18, 0x0c20 }, { 0x17, 0x0012 }, { 0x15, 0x1204 }, + { 0x17, 0x0013 }, { 0x15, 0x0A04 }, { 0x18, 0x0420 }, + }; + + /* read Id from external PHY (all have the same address) */ + id1 = xm_phy_read(hw, port, PHY_XMAC_ID1); + + /* Optimize MDIO transfer by suppressing preamble. */ + r = xm_read16(hw, port, XM_MMU_CMD); + r |= XM_MMU_NO_PRE; + xm_write16(hw, port, XM_MMU_CMD, r); + + switch (id1) { + case PHY_BCOM_ID1_C0: + /* + * Workaround BCOM Errata for the C0 type. + * Write magic patterns to reserved registers. + */ + for (i = 0; i < ARRAY_SIZE(C0hack); i++) + xm_phy_write(hw, port, + C0hack[i].reg, C0hack[i].val); + + break; + case PHY_BCOM_ID1_A1: + /* + * Workaround BCOM Errata for the A1 type. + * Write magic patterns to reserved registers. + */ + for (i = 0; i < ARRAY_SIZE(A1hack); i++) + xm_phy_write(hw, port, + A1hack[i].reg, A1hack[i].val); + break; + } + + /* + * Workaround BCOM Errata (#10523) for all BCom PHYs. + * Disable Power Management after reset. + */ + r = xm_phy_read(hw, port, PHY_BCOM_AUX_CTRL); + r |= PHY_B_AC_DIS_PM; + xm_phy_write(hw, port, PHY_BCOM_AUX_CTRL, r); + + /* Dummy read */ + xm_read16(hw, port, XM_ISRC); + + ext = PHY_B_PEC_EN_LTR; /* enable tx led */ + ctl = PHY_CT_SP1000; /* always 1000mbit */ + + if (skge->autoneg == AUTONEG_ENABLE) { + /* + * Workaround BCOM Errata #1 for the C5 type. + * 1000Base-T Link Acquisition Failure in Slave Mode + * Set Repeater/DTE bit 10 of the 1000Base-T Control Register + */ + u16 adv = PHY_B_1000C_RD; + if (skge->advertising & ADVERTISED_1000baseT_Half) + adv |= PHY_B_1000C_AHD; + if (skge->advertising & ADVERTISED_1000baseT_Full) + adv |= PHY_B_1000C_AFD; + xm_phy_write(hw, port, PHY_BCOM_1000T_CTRL, adv); + + ctl |= PHY_CT_ANE | PHY_CT_RE_CFG; + } else { + if (skge->duplex == DUPLEX_FULL) + ctl |= PHY_CT_DUP_MD; + /* Force to slave */ + xm_phy_write(hw, port, PHY_BCOM_1000T_CTRL, PHY_B_1000C_MSE); + } + + /* Set autonegotiation pause parameters */ + xm_phy_write(hw, port, PHY_BCOM_AUNE_ADV, + phy_pause_map[skge->flow_control] | PHY_AN_CSMA); + + /* Handle Jumbo frames */ + if (hw->dev[port]->mtu > ETH_DATA_LEN) { + xm_phy_write(hw, port, PHY_BCOM_AUX_CTRL, + PHY_B_AC_TX_TST | PHY_B_AC_LONG_PACK); + + ext |= PHY_B_PEC_HIGH_LA; + + } + + xm_phy_write(hw, port, PHY_BCOM_P_EXT_CTRL, ext); + xm_phy_write(hw, port, PHY_BCOM_CTRL, ctl); + + /* Use link status change interrupt */ + xm_phy_write(hw, port, PHY_BCOM_INT_MASK, PHY_B_DEF_MSK); +} + +static void xm_phy_init(struct skge_port *skge) +{ + struct skge_hw *hw = skge->hw; + int port = skge->port; + u16 ctrl = 0; + + if (skge->autoneg == AUTONEG_ENABLE) { + if (skge->advertising & ADVERTISED_1000baseT_Half) + ctrl |= PHY_X_AN_HD; + if (skge->advertising & ADVERTISED_1000baseT_Full) + ctrl |= PHY_X_AN_FD; + + ctrl |= fiber_pause_map[skge->flow_control]; + + xm_phy_write(hw, port, PHY_XMAC_AUNE_ADV, ctrl); + + /* Restart Auto-negotiation */ + ctrl = PHY_CT_ANE | PHY_CT_RE_CFG; + } else { + /* Set DuplexMode in Config register */ + if (skge->duplex == DUPLEX_FULL) + ctrl |= PHY_CT_DUP_MD; + /* + * Do NOT enable Auto-negotiation here. This would hold + * the link down because no IDLEs are transmitted + */ + } + + xm_phy_write(hw, port, PHY_XMAC_CTRL, ctrl); + + /* Poll PHY for status changes */ + mod_timer(&skge->link_timer, jiffies + LINK_HZ); +} + +static int xm_check_link(struct net_device *dev) +{ + struct skge_port *skge = netdev_priv(dev); + struct skge_hw *hw = skge->hw; + int port = skge->port; + u16 status; + + /* read twice because of latch */ + xm_phy_read(hw, port, PHY_XMAC_STAT); + status = xm_phy_read(hw, port, PHY_XMAC_STAT); + + if ((status & PHY_ST_LSYNC) == 0) { + xm_link_down(hw, port); + return 0; + } + + if (skge->autoneg == AUTONEG_ENABLE) { + u16 lpa, res; + + if (!(status & PHY_ST_AN_OVER)) + return 0; + + lpa = xm_phy_read(hw, port, PHY_XMAC_AUNE_LP); + if (lpa & PHY_B_AN_RF) { + netdev_notice(dev, "remote fault\n"); + return 0; + } + + res = xm_phy_read(hw, port, PHY_XMAC_RES_ABI); + + /* Check Duplex mismatch */ + switch (res & (PHY_X_RS_HD | PHY_X_RS_FD)) { + case PHY_X_RS_FD: + skge->duplex = DUPLEX_FULL; + break; + case PHY_X_RS_HD: + skge->duplex = DUPLEX_HALF; + break; + default: + netdev_notice(dev, "duplex mismatch\n"); + return 0; + } + + /* We are using IEEE 802.3z/D5.0 Table 37-4 */ + if ((skge->flow_control == FLOW_MODE_SYMMETRIC || + skge->flow_control == FLOW_MODE_SYM_OR_REM) && + (lpa & PHY_X_P_SYM_MD)) + skge->flow_status = FLOW_STAT_SYMMETRIC; + else if (skge->flow_control == FLOW_MODE_SYM_OR_REM && + (lpa & PHY_X_RS_PAUSE) == PHY_X_P_ASYM_MD) + /* Enable PAUSE receive, disable PAUSE transmit */ + skge->flow_status = FLOW_STAT_REM_SEND; + else if (skge->flow_control == FLOW_MODE_LOC_SEND && + (lpa & PHY_X_RS_PAUSE) == PHY_X_P_BOTH_MD) + /* Disable PAUSE receive, enable PAUSE transmit */ + skge->flow_status = FLOW_STAT_LOC_SEND; + else + skge->flow_status = FLOW_STAT_NONE; + + skge->speed = SPEED_1000; + } + + if (!netif_carrier_ok(dev)) + genesis_link_up(skge); + return 1; +} + +/* Poll to check for link coming up. + * + * Since internal PHY is wired to a level triggered pin, can't + * get an interrupt when carrier is detected, need to poll for + * link coming up. + */ +static void xm_link_timer(struct timer_list *t) +{ + struct skge_port *skge = from_timer(skge, t, link_timer); + struct net_device *dev = skge->netdev; + struct skge_hw *hw = skge->hw; + int port = skge->port; + int i; + unsigned long flags; + + if (!netif_running(dev)) + return; + + spin_lock_irqsave(&hw->phy_lock, flags); + + /* + * Verify that the link by checking GPIO register three times. + * This pin has the signal from the link_sync pin connected to it. + */ + for (i = 0; i < 3; i++) { + if (xm_read16(hw, port, XM_GP_PORT) & XM_GP_INP_ASS) + goto link_down; + } + + /* Re-enable interrupt to detect link down */ + if (xm_check_link(dev)) { + u16 msk = xm_read16(hw, port, XM_IMSK); + msk &= ~XM_IS_INP_ASS; + xm_write16(hw, port, XM_IMSK, msk); + xm_read16(hw, port, XM_ISRC); + } else { +link_down: + mod_timer(&skge->link_timer, + round_jiffies(jiffies + LINK_HZ)); + } + spin_unlock_irqrestore(&hw->phy_lock, flags); +} + +static void genesis_mac_init(struct skge_hw *hw, int port) +{ + struct net_device *dev = hw->dev[port]; + struct skge_port *skge = netdev_priv(dev); + int jumbo = hw->dev[port]->mtu > ETH_DATA_LEN; + int i; + u32 r; + static const u8 zero[6] = { 0 }; + + for (i = 0; i < 10; i++) { + skge_write16(hw, SK_REG(port, TX_MFF_CTRL1), + MFF_SET_MAC_RST); + if (skge_read16(hw, SK_REG(port, TX_MFF_CTRL1)) & MFF_SET_MAC_RST) + goto reset_ok; + udelay(1); + } + + netdev_warn(dev, "genesis reset failed\n"); + + reset_ok: + /* Unreset the XMAC. */ + skge_write16(hw, SK_REG(port, TX_MFF_CTRL1), MFF_CLR_MAC_RST); + + /* + * Perform additional initialization for external PHYs, + * namely for the 1000baseTX cards that use the XMAC's + * GMII mode. + */ + if (hw->phy_type != SK_PHY_XMAC) { + /* Take external Phy out of reset */ + r = skge_read32(hw, B2_GP_IO); + if (port == 0) + r |= GP_DIR_0|GP_IO_0; + else + r |= GP_DIR_2|GP_IO_2; + + skge_write32(hw, B2_GP_IO, r); + + /* Enable GMII interface */ + xm_write16(hw, port, XM_HW_CFG, XM_HW_GMII_MD); + } + + + switch (hw->phy_type) { + case SK_PHY_XMAC: + xm_phy_init(skge); + break; + case SK_PHY_BCOM: + bcom_phy_init(skge); + bcom_check_link(hw, port); + } + + /* Set Station Address */ + xm_outaddr(hw, port, XM_SA, dev->dev_addr); + + /* We don't use match addresses so clear */ + for (i = 1; i < 16; i++) + xm_outaddr(hw, port, XM_EXM(i), zero); + + /* Clear MIB counters */ + xm_write16(hw, port, XM_STAT_CMD, + XM_SC_CLR_RXC | XM_SC_CLR_TXC); + /* Clear two times according to Errata #3 */ + xm_write16(hw, port, XM_STAT_CMD, + XM_SC_CLR_RXC | XM_SC_CLR_TXC); + + /* configure Rx High Water Mark (XM_RX_HI_WM) */ + xm_write16(hw, port, XM_RX_HI_WM, 1450); + + /* We don't need the FCS appended to the packet. */ + r = XM_RX_LENERR_OK | XM_RX_STRIP_FCS; + if (jumbo) + r |= XM_RX_BIG_PK_OK; + + if (skge->duplex == DUPLEX_HALF) { + /* + * If in manual half duplex mode the other side might be in + * full duplex mode, so ignore if a carrier extension is not seen + * on frames received + */ + r |= XM_RX_DIS_CEXT; + } + xm_write16(hw, port, XM_RX_CMD, r); + + /* We want short frames padded to 60 bytes. */ + xm_write16(hw, port, XM_TX_CMD, XM_TX_AUTO_PAD); + + /* Increase threshold for jumbo frames on dual port */ + if (hw->ports > 1 && jumbo) + xm_write16(hw, port, XM_TX_THR, 1020); + else + xm_write16(hw, port, XM_TX_THR, 512); + + /* + * Enable the reception of all error frames. This is + * a necessary evil due to the design of the XMAC. The + * XMAC's receive FIFO is only 8K in size, however jumbo + * frames can be up to 9000 bytes in length. When bad + * frame filtering is enabled, the XMAC's RX FIFO operates + * in 'store and forward' mode. For this to work, the + * entire frame has to fit into the FIFO, but that means + * that jumbo frames larger than 8192 bytes will be + * truncated. Disabling all bad frame filtering causes + * the RX FIFO to operate in streaming mode, in which + * case the XMAC will start transferring frames out of the + * RX FIFO as soon as the FIFO threshold is reached. + */ + xm_write32(hw, port, XM_MODE, XM_DEF_MODE); + + + /* + * Initialize the Receive Counter Event Mask (XM_RX_EV_MSK) + * - Enable all bits excepting 'Octets Rx OK Low CntOv' + * and 'Octets Rx OK Hi Cnt Ov'. + */ + xm_write32(hw, port, XM_RX_EV_MSK, XMR_DEF_MSK); + + /* + * Initialize the Transmit Counter Event Mask (XM_TX_EV_MSK) + * - Enable all bits excepting 'Octets Tx OK Low CntOv' + * and 'Octets Tx OK Hi Cnt Ov'. + */ + xm_write32(hw, port, XM_TX_EV_MSK, XMT_DEF_MSK); + + /* Configure MAC arbiter */ + skge_write16(hw, B3_MA_TO_CTRL, MA_RST_CLR); + + /* configure timeout values */ + skge_write8(hw, B3_MA_TOINI_RX1, 72); + skge_write8(hw, B3_MA_TOINI_RX2, 72); + skge_write8(hw, B3_MA_TOINI_TX1, 72); + skge_write8(hw, B3_MA_TOINI_TX2, 72); + + skge_write8(hw, B3_MA_RCINI_RX1, 0); + skge_write8(hw, B3_MA_RCINI_RX2, 0); + skge_write8(hw, B3_MA_RCINI_TX1, 0); + skge_write8(hw, B3_MA_RCINI_TX2, 0); + + /* Configure Rx MAC FIFO */ + skge_write8(hw, SK_REG(port, RX_MFF_CTRL2), MFF_RST_CLR); + skge_write16(hw, SK_REG(port, RX_MFF_CTRL1), MFF_ENA_TIM_PAT); + skge_write8(hw, SK_REG(port, RX_MFF_CTRL2), MFF_ENA_OP_MD); + + /* Configure Tx MAC FIFO */ + skge_write8(hw, SK_REG(port, TX_MFF_CTRL2), MFF_RST_CLR); + skge_write16(hw, SK_REG(port, TX_MFF_CTRL1), MFF_TX_CTRL_DEF); + skge_write8(hw, SK_REG(port, TX_MFF_CTRL2), MFF_ENA_OP_MD); + + if (jumbo) { + /* Enable frame flushing if jumbo frames used */ + skge_write16(hw, SK_REG(port, RX_MFF_CTRL1), MFF_ENA_FLUSH); + } else { + /* enable timeout timers if normal frames */ + skge_write16(hw, B3_PA_CTRL, + (port == 0) ? PA_ENA_TO_TX1 : PA_ENA_TO_TX2); + } +} + +static void genesis_stop(struct skge_port *skge) +{ + struct skge_hw *hw = skge->hw; + int port = skge->port; + unsigned retries = 1000; + u16 cmd; + + /* Disable Tx and Rx */ + cmd = xm_read16(hw, port, XM_MMU_CMD); + cmd &= ~(XM_MMU_ENA_RX | XM_MMU_ENA_TX); + xm_write16(hw, port, XM_MMU_CMD, cmd); + + genesis_reset(hw, port); + + /* Clear Tx packet arbiter timeout IRQ */ + skge_write16(hw, B3_PA_CTRL, + port == 0 ? PA_CLR_TO_TX1 : PA_CLR_TO_TX2); + + /* Reset the MAC */ + skge_write16(hw, SK_REG(port, TX_MFF_CTRL1), MFF_CLR_MAC_RST); + do { + skge_write16(hw, SK_REG(port, TX_MFF_CTRL1), MFF_SET_MAC_RST); + if (!(skge_read16(hw, SK_REG(port, TX_MFF_CTRL1)) & MFF_SET_MAC_RST)) + break; + } while (--retries > 0); + + /* For external PHYs there must be special handling */ + if (hw->phy_type != SK_PHY_XMAC) { + u32 reg = skge_read32(hw, B2_GP_IO); + if (port == 0) { + reg |= GP_DIR_0; + reg &= ~GP_IO_0; + } else { + reg |= GP_DIR_2; + reg &= ~GP_IO_2; + } + skge_write32(hw, B2_GP_IO, reg); + skge_read32(hw, B2_GP_IO); + } + + xm_write16(hw, port, XM_MMU_CMD, + xm_read16(hw, port, XM_MMU_CMD) + & ~(XM_MMU_ENA_RX | XM_MMU_ENA_TX)); + + xm_read16(hw, port, XM_MMU_CMD); +} + + +static void genesis_get_stats(struct skge_port *skge, u64 *data) +{ + struct skge_hw *hw = skge->hw; + int port = skge->port; + int i; + unsigned long timeout = jiffies + HZ; + + xm_write16(hw, port, + XM_STAT_CMD, XM_SC_SNP_TXC | XM_SC_SNP_RXC); + + /* wait for update to complete */ + while (xm_read16(hw, port, XM_STAT_CMD) + & (XM_SC_SNP_TXC | XM_SC_SNP_RXC)) { + if (time_after(jiffies, timeout)) + break; + udelay(10); + } + + /* special case for 64 bit octet counter */ + data[0] = (u64) xm_read32(hw, port, XM_TXO_OK_HI) << 32 + | xm_read32(hw, port, XM_TXO_OK_LO); + data[1] = (u64) xm_read32(hw, port, XM_RXO_OK_HI) << 32 + | xm_read32(hw, port, XM_RXO_OK_LO); + + for (i = 2; i < ARRAY_SIZE(skge_stats); i++) + data[i] = xm_read32(hw, port, skge_stats[i].xmac_offset); +} + +static void genesis_mac_intr(struct skge_hw *hw, int port) +{ + struct net_device *dev = hw->dev[port]; + struct skge_port *skge = netdev_priv(dev); + u16 status = xm_read16(hw, port, XM_ISRC); + + netif_printk(skge, intr, KERN_DEBUG, skge->netdev, + "mac interrupt status 0x%x\n", status); + + if (hw->phy_type == SK_PHY_XMAC && (status & XM_IS_INP_ASS)) { + xm_link_down(hw, port); + mod_timer(&skge->link_timer, jiffies + 1); + } + + if (status & XM_IS_TXF_UR) { + xm_write32(hw, port, XM_MODE, XM_MD_FTF); + ++dev->stats.tx_fifo_errors; + } +} + +static void genesis_link_up(struct skge_port *skge) +{ + struct skge_hw *hw = skge->hw; + int port = skge->port; + u16 cmd, msk; + u32 mode; + + cmd = xm_read16(hw, port, XM_MMU_CMD); + + /* + * enabling pause frame reception is required for 1000BT + * because the XMAC is not reset if the link is going down + */ + if (skge->flow_status == FLOW_STAT_NONE || + skge->flow_status == FLOW_STAT_LOC_SEND) + /* Disable Pause Frame Reception */ + cmd |= XM_MMU_IGN_PF; + else + /* Enable Pause Frame Reception */ + cmd &= ~XM_MMU_IGN_PF; + + xm_write16(hw, port, XM_MMU_CMD, cmd); + + mode = xm_read32(hw, port, XM_MODE); + if (skge->flow_status == FLOW_STAT_SYMMETRIC || + skge->flow_status == FLOW_STAT_LOC_SEND) { + /* + * Configure Pause Frame Generation + * Use internal and external Pause Frame Generation. + * Sending pause frames is edge triggered. + * Send a Pause frame with the maximum pause time if + * internal oder external FIFO full condition occurs. + * Send a zero pause time frame to re-start transmission. + */ + /* XM_PAUSE_DA = '010000C28001' (default) */ + /* XM_MAC_PTIME = 0xffff (maximum) */ + /* remember this value is defined in big endian (!) */ + xm_write16(hw, port, XM_MAC_PTIME, 0xffff); + + mode |= XM_PAUSE_MODE; + skge_write16(hw, SK_REG(port, RX_MFF_CTRL1), MFF_ENA_PAUSE); + } else { + /* + * disable pause frame generation is required for 1000BT + * because the XMAC is not reset if the link is going down + */ + /* Disable Pause Mode in Mode Register */ + mode &= ~XM_PAUSE_MODE; + + skge_write16(hw, SK_REG(port, RX_MFF_CTRL1), MFF_DIS_PAUSE); + } + + xm_write32(hw, port, XM_MODE, mode); + + /* Turn on detection of Tx underrun */ + msk = xm_read16(hw, port, XM_IMSK); + msk &= ~XM_IS_TXF_UR; + xm_write16(hw, port, XM_IMSK, msk); + + xm_read16(hw, port, XM_ISRC); + + /* get MMU Command Reg. */ + cmd = xm_read16(hw, port, XM_MMU_CMD); + if (hw->phy_type != SK_PHY_XMAC && skge->duplex == DUPLEX_FULL) + cmd |= XM_MMU_GMII_FD; + + /* + * Workaround BCOM Errata (#10523) for all BCom Phys + * Enable Power Management after link up + */ + if (hw->phy_type == SK_PHY_BCOM) { + xm_phy_write(hw, port, PHY_BCOM_AUX_CTRL, + xm_phy_read(hw, port, PHY_BCOM_AUX_CTRL) + & ~PHY_B_AC_DIS_PM); + xm_phy_write(hw, port, PHY_BCOM_INT_MASK, PHY_B_DEF_MSK); + } + + /* enable Rx/Tx */ + xm_write16(hw, port, XM_MMU_CMD, + cmd | XM_MMU_ENA_RX | XM_MMU_ENA_TX); + skge_link_up(skge); +} + + +static inline void bcom_phy_intr(struct skge_port *skge) +{ + struct skge_hw *hw = skge->hw; + int port = skge->port; + u16 isrc; + + isrc = xm_phy_read(hw, port, PHY_BCOM_INT_STAT); + netif_printk(skge, intr, KERN_DEBUG, skge->netdev, + "phy interrupt status 0x%x\n", isrc); + + if (isrc & PHY_B_IS_PSE) + pr_err("%s: uncorrectable pair swap error\n", + hw->dev[port]->name); + + /* Workaround BCom Errata: + * enable and disable loopback mode if "NO HCD" occurs. + */ + if (isrc & PHY_B_IS_NO_HDCL) { + u16 ctrl = xm_phy_read(hw, port, PHY_BCOM_CTRL); + xm_phy_write(hw, port, PHY_BCOM_CTRL, + ctrl | PHY_CT_LOOP); + xm_phy_write(hw, port, PHY_BCOM_CTRL, + ctrl & ~PHY_CT_LOOP); + } + + if (isrc & (PHY_B_IS_AN_PR | PHY_B_IS_LST_CHANGE)) + bcom_check_link(hw, port); + +} + +static int gm_phy_write(struct skge_hw *hw, int port, u16 reg, u16 val) +{ + int i; + + gma_write16(hw, port, GM_SMI_DATA, val); + gma_write16(hw, port, GM_SMI_CTRL, + GM_SMI_CT_PHY_AD(hw->phy_addr) | GM_SMI_CT_REG_AD(reg)); + for (i = 0; i < PHY_RETRIES; i++) { + udelay(1); + + if (!(gma_read16(hw, port, GM_SMI_CTRL) & GM_SMI_CT_BUSY)) + return 0; + } + + pr_warn("%s: phy write timeout\n", hw->dev[port]->name); + return -EIO; +} + +static int __gm_phy_read(struct skge_hw *hw, int port, u16 reg, u16 *val) +{ + int i; + + gma_write16(hw, port, GM_SMI_CTRL, + GM_SMI_CT_PHY_AD(hw->phy_addr) + | GM_SMI_CT_REG_AD(reg) | GM_SMI_CT_OP_RD); + + for (i = 0; i < PHY_RETRIES; i++) { + udelay(1); + if (gma_read16(hw, port, GM_SMI_CTRL) & GM_SMI_CT_RD_VAL) + goto ready; + } + + return -ETIMEDOUT; + ready: + *val = gma_read16(hw, port, GM_SMI_DATA); + return 0; +} + +static u16 gm_phy_read(struct skge_hw *hw, int port, u16 reg) +{ + u16 v = 0; + if (__gm_phy_read(hw, port, reg, &v)) + pr_warn("%s: phy read timeout\n", hw->dev[port]->name); + return v; +} + +/* Marvell Phy Initialization */ +static void yukon_init(struct skge_hw *hw, int port) +{ + struct skge_port *skge = netdev_priv(hw->dev[port]); + u16 ctrl, ct1000, adv; + + if (skge->autoneg == AUTONEG_ENABLE) { + u16 ectrl = gm_phy_read(hw, port, PHY_MARV_EXT_CTRL); + + ectrl &= ~(PHY_M_EC_M_DSC_MSK | PHY_M_EC_S_DSC_MSK | + PHY_M_EC_MAC_S_MSK); + ectrl |= PHY_M_EC_MAC_S(MAC_TX_CLK_25_MHZ); + + ectrl |= PHY_M_EC_M_DSC(0) | PHY_M_EC_S_DSC(1); + + gm_phy_write(hw, port, PHY_MARV_EXT_CTRL, ectrl); + } + + ctrl = gm_phy_read(hw, port, PHY_MARV_CTRL); + if (skge->autoneg == AUTONEG_DISABLE) + ctrl &= ~PHY_CT_ANE; + + ctrl |= PHY_CT_RESET; + gm_phy_write(hw, port, PHY_MARV_CTRL, ctrl); + + ctrl = 0; + ct1000 = 0; + adv = PHY_AN_CSMA; + + if (skge->autoneg == AUTONEG_ENABLE) { + if (hw->copper) { + if (skge->advertising & ADVERTISED_1000baseT_Full) + ct1000 |= PHY_M_1000C_AFD; + if (skge->advertising & ADVERTISED_1000baseT_Half) + ct1000 |= PHY_M_1000C_AHD; + if (skge->advertising & ADVERTISED_100baseT_Full) + adv |= PHY_M_AN_100_FD; + if (skge->advertising & ADVERTISED_100baseT_Half) + adv |= PHY_M_AN_100_HD; + if (skge->advertising & ADVERTISED_10baseT_Full) + adv |= PHY_M_AN_10_FD; + if (skge->advertising & ADVERTISED_10baseT_Half) + adv |= PHY_M_AN_10_HD; + + /* Set Flow-control capabilities */ + adv |= phy_pause_map[skge->flow_control]; + } else { + if (skge->advertising & ADVERTISED_1000baseT_Full) + adv |= PHY_M_AN_1000X_AFD; + if (skge->advertising & ADVERTISED_1000baseT_Half) + adv |= PHY_M_AN_1000X_AHD; + + adv |= fiber_pause_map[skge->flow_control]; + } + + /* Restart Auto-negotiation */ + ctrl |= PHY_CT_ANE | PHY_CT_RE_CFG; + } else { + /* forced speed/duplex settings */ + ct1000 = PHY_M_1000C_MSE; + + if (skge->duplex == DUPLEX_FULL) + ctrl |= PHY_CT_DUP_MD; + + switch (skge->speed) { + case SPEED_1000: + ctrl |= PHY_CT_SP1000; + break; + case SPEED_100: + ctrl |= PHY_CT_SP100; + break; + } + + ctrl |= PHY_CT_RESET; + } + + gm_phy_write(hw, port, PHY_MARV_1000T_CTRL, ct1000); + + gm_phy_write(hw, port, PHY_MARV_AUNE_ADV, adv); + gm_phy_write(hw, port, PHY_MARV_CTRL, ctrl); + + /* Enable phy interrupt on autonegotiation complete (or link up) */ + if (skge->autoneg == AUTONEG_ENABLE) + gm_phy_write(hw, port, PHY_MARV_INT_MASK, PHY_M_IS_AN_MSK); + else + gm_phy_write(hw, port, PHY_MARV_INT_MASK, PHY_M_IS_DEF_MSK); +} + +static void yukon_reset(struct skge_hw *hw, int port) +{ + gm_phy_write(hw, port, PHY_MARV_INT_MASK, 0);/* disable PHY IRQs */ + gma_write16(hw, port, GM_MC_ADDR_H1, 0); /* clear MC hash */ + gma_write16(hw, port, GM_MC_ADDR_H2, 0); + gma_write16(hw, port, GM_MC_ADDR_H3, 0); + gma_write16(hw, port, GM_MC_ADDR_H4, 0); + + gma_write16(hw, port, GM_RX_CTRL, + gma_read16(hw, port, GM_RX_CTRL) + | GM_RXCR_UCF_ENA | GM_RXCR_MCF_ENA); +} + +/* Apparently, early versions of Yukon-Lite had wrong chip_id? */ +static int is_yukon_lite_a0(struct skge_hw *hw) +{ + u32 reg; + int ret; + + if (hw->chip_id != CHIP_ID_YUKON) + return 0; + + reg = skge_read32(hw, B2_FAR); + skge_write8(hw, B2_FAR + 3, 0xff); + ret = (skge_read8(hw, B2_FAR + 3) != 0); + skge_write32(hw, B2_FAR, reg); + return ret; +} + +static void yukon_mac_init(struct skge_hw *hw, int port) +{ + struct skge_port *skge = netdev_priv(hw->dev[port]); + int i; + u32 reg; + const u8 *addr = hw->dev[port]->dev_addr; + + /* WA code for COMA mode -- set PHY reset */ + if (hw->chip_id == CHIP_ID_YUKON_LITE && + hw->chip_rev >= CHIP_REV_YU_LITE_A3) { + reg = skge_read32(hw, B2_GP_IO); + reg |= GP_DIR_9 | GP_IO_9; + skge_write32(hw, B2_GP_IO, reg); + } + + /* hard reset */ + skge_write32(hw, SK_REG(port, GPHY_CTRL), GPC_RST_SET); + skge_write32(hw, SK_REG(port, GMAC_CTRL), GMC_RST_SET); + + /* WA code for COMA mode -- clear PHY reset */ + if (hw->chip_id == CHIP_ID_YUKON_LITE && + hw->chip_rev >= CHIP_REV_YU_LITE_A3) { + reg = skge_read32(hw, B2_GP_IO); + reg |= GP_DIR_9; + reg &= ~GP_IO_9; + skge_write32(hw, B2_GP_IO, reg); + } + + /* Set hardware config mode */ + reg = GPC_INT_POL_HI | GPC_DIS_FC | GPC_DIS_SLEEP | + GPC_ENA_XC | GPC_ANEG_ADV_ALL_M | GPC_ENA_PAUSE; + reg |= hw->copper ? GPC_HWCFG_GMII_COP : GPC_HWCFG_GMII_FIB; + + /* Clear GMC reset */ + skge_write32(hw, SK_REG(port, GPHY_CTRL), reg | GPC_RST_SET); + skge_write32(hw, SK_REG(port, GPHY_CTRL), reg | GPC_RST_CLR); + skge_write32(hw, SK_REG(port, GMAC_CTRL), GMC_PAUSE_ON | GMC_RST_CLR); + + if (skge->autoneg == AUTONEG_DISABLE) { + reg = GM_GPCR_AU_ALL_DIS; + gma_write16(hw, port, GM_GP_CTRL, + gma_read16(hw, port, GM_GP_CTRL) | reg); + + switch (skge->speed) { + case SPEED_1000: + reg &= ~GM_GPCR_SPEED_100; + reg |= GM_GPCR_SPEED_1000; + break; + case SPEED_100: + reg &= ~GM_GPCR_SPEED_1000; + reg |= GM_GPCR_SPEED_100; + break; + case SPEED_10: + reg &= ~(GM_GPCR_SPEED_1000 | GM_GPCR_SPEED_100); + break; + } + + if (skge->duplex == DUPLEX_FULL) + reg |= GM_GPCR_DUP_FULL; + } else + reg = GM_GPCR_SPEED_1000 | GM_GPCR_SPEED_100 | GM_GPCR_DUP_FULL; + + switch (skge->flow_control) { + case FLOW_MODE_NONE: + skge_write32(hw, SK_REG(port, GMAC_CTRL), GMC_PAUSE_OFF); + reg |= GM_GPCR_FC_TX_DIS | GM_GPCR_FC_RX_DIS | GM_GPCR_AU_FCT_DIS; + break; + case FLOW_MODE_LOC_SEND: + /* disable Rx flow-control */ + reg |= GM_GPCR_FC_RX_DIS | GM_GPCR_AU_FCT_DIS; + break; + case FLOW_MODE_SYMMETRIC: + case FLOW_MODE_SYM_OR_REM: + /* enable Tx & Rx flow-control */ + break; + } + + gma_write16(hw, port, GM_GP_CTRL, reg); + skge_read16(hw, SK_REG(port, GMAC_IRQ_SRC)); + + yukon_init(hw, port); + + /* MIB clear */ + reg = gma_read16(hw, port, GM_PHY_ADDR); + gma_write16(hw, port, GM_PHY_ADDR, reg | GM_PAR_MIB_CLR); + + for (i = 0; i < GM_MIB_CNT_SIZE; i++) + gma_read16(hw, port, GM_MIB_CNT_BASE + 8*i); + gma_write16(hw, port, GM_PHY_ADDR, reg); + + /* transmit control */ + gma_write16(hw, port, GM_TX_CTRL, TX_COL_THR(TX_COL_DEF)); + + /* receive control reg: unicast + multicast + no FCS */ + gma_write16(hw, port, GM_RX_CTRL, + GM_RXCR_UCF_ENA | GM_RXCR_CRC_DIS | GM_RXCR_MCF_ENA); + + /* transmit flow control */ + gma_write16(hw, port, GM_TX_FLOW_CTRL, 0xffff); + + /* transmit parameter */ + gma_write16(hw, port, GM_TX_PARAM, + TX_JAM_LEN_VAL(TX_JAM_LEN_DEF) | + TX_JAM_IPG_VAL(TX_JAM_IPG_DEF) | + TX_IPG_JAM_DATA(TX_IPG_JAM_DEF)); + + /* configure the Serial Mode Register */ + reg = DATA_BLIND_VAL(DATA_BLIND_DEF) + | GM_SMOD_VLAN_ENA + | IPG_DATA_VAL(IPG_DATA_DEF); + + if (hw->dev[port]->mtu > ETH_DATA_LEN) + reg |= GM_SMOD_JUMBO_ENA; + + gma_write16(hw, port, GM_SERIAL_MODE, reg); + + /* physical address: used for pause frames */ + gma_set_addr(hw, port, GM_SRC_ADDR_1L, addr); + /* virtual address for data */ + gma_set_addr(hw, port, GM_SRC_ADDR_2L, addr); + + /* enable interrupt mask for counter overflows */ + gma_write16(hw, port, GM_TX_IRQ_MSK, 0); + gma_write16(hw, port, GM_RX_IRQ_MSK, 0); + gma_write16(hw, port, GM_TR_IRQ_MSK, 0); + + /* Initialize Mac Fifo */ + + /* Configure Rx MAC FIFO */ + skge_write16(hw, SK_REG(port, RX_GMF_FL_MSK), RX_FF_FL_DEF_MSK); + reg = GMF_OPER_ON | GMF_RX_F_FL_ON; + + /* disable Rx GMAC FIFO Flush for YUKON-Lite Rev. A0 only */ + if (is_yukon_lite_a0(hw)) + reg &= ~GMF_RX_F_FL_ON; + + skge_write8(hw, SK_REG(port, RX_GMF_CTRL_T), GMF_RST_CLR); + skge_write16(hw, SK_REG(port, RX_GMF_CTRL_T), reg); + /* + * because Pause Packet Truncation in GMAC is not working + * we have to increase the Flush Threshold to 64 bytes + * in order to flush pause packets in Rx FIFO on Yukon-1 + */ + skge_write16(hw, SK_REG(port, RX_GMF_FL_THR), RX_GMF_FL_THR_DEF+1); + + /* Configure Tx MAC FIFO */ + skge_write8(hw, SK_REG(port, TX_GMF_CTRL_T), GMF_RST_CLR); + skge_write16(hw, SK_REG(port, TX_GMF_CTRL_T), GMF_OPER_ON); +} + +/* Go into power down mode */ +static void yukon_suspend(struct skge_hw *hw, int port) +{ + u16 ctrl; + + ctrl = gm_phy_read(hw, port, PHY_MARV_PHY_CTRL); + ctrl |= PHY_M_PC_POL_R_DIS; + gm_phy_write(hw, port, PHY_MARV_PHY_CTRL, ctrl); + + ctrl = gm_phy_read(hw, port, PHY_MARV_CTRL); + ctrl |= PHY_CT_RESET; + gm_phy_write(hw, port, PHY_MARV_CTRL, ctrl); + + /* switch IEEE compatible power down mode on */ + ctrl = gm_phy_read(hw, port, PHY_MARV_CTRL); + ctrl |= PHY_CT_PDOWN; + gm_phy_write(hw, port, PHY_MARV_CTRL, ctrl); +} + +static void yukon_stop(struct skge_port *skge) +{ + struct skge_hw *hw = skge->hw; + int port = skge->port; + + skge_write8(hw, SK_REG(port, GMAC_IRQ_MSK), 0); + yukon_reset(hw, port); + + gma_write16(hw, port, GM_GP_CTRL, + gma_read16(hw, port, GM_GP_CTRL) + & ~(GM_GPCR_TX_ENA|GM_GPCR_RX_ENA)); + gma_read16(hw, port, GM_GP_CTRL); + + yukon_suspend(hw, port); + + /* set GPHY Control reset */ + skge_write8(hw, SK_REG(port, GPHY_CTRL), GPC_RST_SET); + skge_write8(hw, SK_REG(port, GMAC_CTRL), GMC_RST_SET); +} + +static void yukon_get_stats(struct skge_port *skge, u64 *data) +{ + struct skge_hw *hw = skge->hw; + int port = skge->port; + int i; + + data[0] = (u64) gma_read32(hw, port, GM_TXO_OK_HI) << 32 + | gma_read32(hw, port, GM_TXO_OK_LO); + data[1] = (u64) gma_read32(hw, port, GM_RXO_OK_HI) << 32 + | gma_read32(hw, port, GM_RXO_OK_LO); + + for (i = 2; i < ARRAY_SIZE(skge_stats); i++) + data[i] = gma_read32(hw, port, + skge_stats[i].gma_offset); +} + +static void yukon_mac_intr(struct skge_hw *hw, int port) +{ + struct net_device *dev = hw->dev[port]; + struct skge_port *skge = netdev_priv(dev); + u8 status = skge_read8(hw, SK_REG(port, GMAC_IRQ_SRC)); + + netif_printk(skge, intr, KERN_DEBUG, skge->netdev, + "mac interrupt status 0x%x\n", status); + + if (status & GM_IS_RX_FF_OR) { + ++dev->stats.rx_fifo_errors; + skge_write8(hw, SK_REG(port, RX_GMF_CTRL_T), GMF_CLI_RX_FO); + } + + if (status & GM_IS_TX_FF_UR) { + ++dev->stats.tx_fifo_errors; + skge_write8(hw, SK_REG(port, TX_GMF_CTRL_T), GMF_CLI_TX_FU); + } + +} + +static u16 yukon_speed(const struct skge_hw *hw, u16 aux) +{ + switch (aux & PHY_M_PS_SPEED_MSK) { + case PHY_M_PS_SPEED_1000: + return SPEED_1000; + case PHY_M_PS_SPEED_100: + return SPEED_100; + default: + return SPEED_10; + } +} + +static void yukon_link_up(struct skge_port *skge) +{ + struct skge_hw *hw = skge->hw; + int port = skge->port; + u16 reg; + + /* Enable Transmit FIFO Underrun */ + skge_write8(hw, SK_REG(port, GMAC_IRQ_MSK), GMAC_DEF_MSK); + + reg = gma_read16(hw, port, GM_GP_CTRL); + if (skge->duplex == DUPLEX_FULL || skge->autoneg == AUTONEG_ENABLE) + reg |= GM_GPCR_DUP_FULL; + + /* enable Rx/Tx */ + reg |= GM_GPCR_RX_ENA | GM_GPCR_TX_ENA; + gma_write16(hw, port, GM_GP_CTRL, reg); + + gm_phy_write(hw, port, PHY_MARV_INT_MASK, PHY_M_IS_DEF_MSK); + skge_link_up(skge); +} + +static void yukon_link_down(struct skge_port *skge) +{ + struct skge_hw *hw = skge->hw; + int port = skge->port; + u16 ctrl; + + ctrl = gma_read16(hw, port, GM_GP_CTRL); + ctrl &= ~(GM_GPCR_RX_ENA | GM_GPCR_TX_ENA); + gma_write16(hw, port, GM_GP_CTRL, ctrl); + + if (skge->flow_status == FLOW_STAT_REM_SEND) { + ctrl = gm_phy_read(hw, port, PHY_MARV_AUNE_ADV); + ctrl |= PHY_M_AN_ASP; + /* restore Asymmetric Pause bit */ + gm_phy_write(hw, port, PHY_MARV_AUNE_ADV, ctrl); + } + + skge_link_down(skge); + + yukon_init(hw, port); +} + +static void yukon_phy_intr(struct skge_port *skge) +{ + struct skge_hw *hw = skge->hw; + int port = skge->port; + const char *reason = NULL; + u16 istatus, phystat; + + istatus = gm_phy_read(hw, port, PHY_MARV_INT_STAT); + phystat = gm_phy_read(hw, port, PHY_MARV_PHY_STAT); + + netif_printk(skge, intr, KERN_DEBUG, skge->netdev, + "phy interrupt status 0x%x 0x%x\n", istatus, phystat); + + if (istatus & PHY_M_IS_AN_COMPL) { + if (gm_phy_read(hw, port, PHY_MARV_AUNE_LP) + & PHY_M_AN_RF) { + reason = "remote fault"; + goto failed; + } + + if (gm_phy_read(hw, port, PHY_MARV_1000T_STAT) & PHY_B_1000S_MSF) { + reason = "master/slave fault"; + goto failed; + } + + if (!(phystat & PHY_M_PS_SPDUP_RES)) { + reason = "speed/duplex"; + goto failed; + } + + skge->duplex = (phystat & PHY_M_PS_FULL_DUP) + ? DUPLEX_FULL : DUPLEX_HALF; + skge->speed = yukon_speed(hw, phystat); + + /* We are using IEEE 802.3z/D5.0 Table 37-4 */ + switch (phystat & PHY_M_PS_PAUSE_MSK) { + case PHY_M_PS_PAUSE_MSK: + skge->flow_status = FLOW_STAT_SYMMETRIC; + break; + case PHY_M_PS_RX_P_EN: + skge->flow_status = FLOW_STAT_REM_SEND; + break; + case PHY_M_PS_TX_P_EN: + skge->flow_status = FLOW_STAT_LOC_SEND; + break; + default: + skge->flow_status = FLOW_STAT_NONE; + } + + if (skge->flow_status == FLOW_STAT_NONE || + (skge->speed < SPEED_1000 && skge->duplex == DUPLEX_HALF)) + skge_write8(hw, SK_REG(port, GMAC_CTRL), GMC_PAUSE_OFF); + else + skge_write8(hw, SK_REG(port, GMAC_CTRL), GMC_PAUSE_ON); + yukon_link_up(skge); + return; + } + + if (istatus & PHY_M_IS_LSP_CHANGE) + skge->speed = yukon_speed(hw, phystat); + + if (istatus & PHY_M_IS_DUP_CHANGE) + skge->duplex = (phystat & PHY_M_PS_FULL_DUP) ? DUPLEX_FULL : DUPLEX_HALF; + if (istatus & PHY_M_IS_LST_CHANGE) { + if (phystat & PHY_M_PS_LINK_UP) + yukon_link_up(skge); + else + yukon_link_down(skge); + } + return; + failed: + pr_err("%s: autonegotiation failed (%s)\n", skge->netdev->name, reason); + + /* XXX restart autonegotiation? */ +} + +static void skge_phy_reset(struct skge_port *skge) +{ + struct skge_hw *hw = skge->hw; + int port = skge->port; + struct net_device *dev = hw->dev[port]; + + netif_stop_queue(skge->netdev); + netif_carrier_off(skge->netdev); + + spin_lock_bh(&hw->phy_lock); + if (is_genesis(hw)) { + genesis_reset(hw, port); + genesis_mac_init(hw, port); + } else { + yukon_reset(hw, port); + yukon_init(hw, port); + } + spin_unlock_bh(&hw->phy_lock); + + skge_set_multicast(dev); +} + +/* Basic MII support */ +static int skge_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) +{ + struct mii_ioctl_data *data = if_mii(ifr); + struct skge_port *skge = netdev_priv(dev); + struct skge_hw *hw = skge->hw; + int err = -EOPNOTSUPP; + + if (!netif_running(dev)) + return -ENODEV; /* Phy still in reset */ + + switch (cmd) { + case SIOCGMIIPHY: + data->phy_id = hw->phy_addr; + + fallthrough; + case SIOCGMIIREG: { + u16 val = 0; + spin_lock_bh(&hw->phy_lock); + + if (is_genesis(hw)) + err = __xm_phy_read(hw, skge->port, data->reg_num & 0x1f, &val); + else + err = __gm_phy_read(hw, skge->port, data->reg_num & 0x1f, &val); + spin_unlock_bh(&hw->phy_lock); + data->val_out = val; + break; + } + + case SIOCSMIIREG: + spin_lock_bh(&hw->phy_lock); + if (is_genesis(hw)) + err = xm_phy_write(hw, skge->port, data->reg_num & 0x1f, + data->val_in); + else + err = gm_phy_write(hw, skge->port, data->reg_num & 0x1f, + data->val_in); + spin_unlock_bh(&hw->phy_lock); + break; + } + return err; +} + +static void skge_ramset(struct skge_hw *hw, u16 q, u32 start, size_t len) +{ + u32 end; + + start /= 8; + len /= 8; + end = start + len - 1; + + skge_write8(hw, RB_ADDR(q, RB_CTRL), RB_RST_CLR); + skge_write32(hw, RB_ADDR(q, RB_START), start); + skge_write32(hw, RB_ADDR(q, RB_WP), start); + skge_write32(hw, RB_ADDR(q, RB_RP), start); + skge_write32(hw, RB_ADDR(q, RB_END), end); + + if (q == Q_R1 || q == Q_R2) { + /* Set thresholds on receive queue's */ + skge_write32(hw, RB_ADDR(q, RB_RX_UTPP), + start + (2*len)/3); + skge_write32(hw, RB_ADDR(q, RB_RX_LTPP), + start + (len/3)); + } else { + /* Enable store & forward on Tx queue's because + * Tx FIFO is only 4K on Genesis and 1K on Yukon + */ + skge_write8(hw, RB_ADDR(q, RB_CTRL), RB_ENA_STFWD); + } + + skge_write8(hw, RB_ADDR(q, RB_CTRL), RB_ENA_OP_MD); +} + +/* Setup Bus Memory Interface */ +static void skge_qset(struct skge_port *skge, u16 q, + const struct skge_element *e) +{ + struct skge_hw *hw = skge->hw; + u32 watermark = 0x600; + u64 base = skge->dma + (e->desc - skge->mem); + + /* optimization to reduce window on 32bit/33mhz */ + if ((skge_read16(hw, B0_CTST) & (CS_BUS_CLOCK | CS_BUS_SLOT_SZ)) == 0) + watermark /= 2; + + skge_write32(hw, Q_ADDR(q, Q_CSR), CSR_CLR_RESET); + skge_write32(hw, Q_ADDR(q, Q_F), watermark); + skge_write32(hw, Q_ADDR(q, Q_DA_H), (u32)(base >> 32)); + skge_write32(hw, Q_ADDR(q, Q_DA_L), (u32)base); +} + +static int skge_up(struct net_device *dev) +{ + struct skge_port *skge = netdev_priv(dev); + struct skge_hw *hw = skge->hw; + int port = skge->port; + u32 chunk, ram_addr; + size_t rx_size, tx_size; + int err; + + if (!is_valid_ether_addr(dev->dev_addr)) + return -EINVAL; + + netif_info(skge, ifup, skge->netdev, "enabling interface\n"); + + if (dev->mtu > RX_BUF_SIZE) + skge->rx_buf_size = dev->mtu + ETH_HLEN; + else + skge->rx_buf_size = RX_BUF_SIZE; + + + rx_size = skge->rx_ring.count * sizeof(struct skge_rx_desc); + tx_size = skge->tx_ring.count * sizeof(struct skge_tx_desc); + skge->mem_size = tx_size + rx_size; + skge->mem = dma_alloc_coherent(&hw->pdev->dev, skge->mem_size, + &skge->dma, GFP_KERNEL); + if (!skge->mem) + return -ENOMEM; + + BUG_ON(skge->dma & 7); + + if (upper_32_bits(skge->dma) != upper_32_bits(skge->dma + skge->mem_size)) { + dev_err(&hw->pdev->dev, "dma_alloc_coherent region crosses 4G boundary\n"); + err = -EINVAL; + goto free_pci_mem; + } + + err = skge_ring_alloc(&skge->rx_ring, skge->mem, skge->dma); + if (err) + goto free_pci_mem; + + err = skge_rx_fill(dev); + if (err) + goto free_rx_ring; + + err = skge_ring_alloc(&skge->tx_ring, skge->mem + rx_size, + skge->dma + rx_size); + if (err) + goto free_rx_ring; + + if (hw->ports == 1) { + err = request_irq(hw->pdev->irq, skge_intr, IRQF_SHARED, + dev->name, hw); + if (err) { + netdev_err(dev, "Unable to allocate interrupt %d error: %d\n", + hw->pdev->irq, err); + goto free_tx_ring; + } + } + + /* Initialize MAC */ + netif_carrier_off(dev); + spin_lock_bh(&hw->phy_lock); + if (is_genesis(hw)) + genesis_mac_init(hw, port); + else + yukon_mac_init(hw, port); + spin_unlock_bh(&hw->phy_lock); + + /* Configure RAMbuffers - equally between ports and tx/rx */ + chunk = (hw->ram_size - hw->ram_offset) / (hw->ports * 2); + ram_addr = hw->ram_offset + 2 * chunk * port; + + skge_ramset(hw, rxqaddr[port], ram_addr, chunk); + skge_qset(skge, rxqaddr[port], skge->rx_ring.to_clean); + + BUG_ON(skge->tx_ring.to_use != skge->tx_ring.to_clean); + skge_ramset(hw, txqaddr[port], ram_addr+chunk, chunk); + skge_qset(skge, txqaddr[port], skge->tx_ring.to_use); + + /* Start receiver BMU */ + wmb(); + skge_write8(hw, Q_ADDR(rxqaddr[port], Q_CSR), CSR_START | CSR_IRQ_CL_F); + skge_led(skge, LED_MODE_ON); + + spin_lock_irq(&hw->hw_lock); + hw->intr_mask |= portmask[port]; + skge_write32(hw, B0_IMSK, hw->intr_mask); + skge_read32(hw, B0_IMSK); + spin_unlock_irq(&hw->hw_lock); + + napi_enable(&skge->napi); + + skge_set_multicast(dev); + + return 0; + + free_tx_ring: + kfree(skge->tx_ring.start); + free_rx_ring: + skge_rx_clean(skge); + kfree(skge->rx_ring.start); + free_pci_mem: + dma_free_coherent(&hw->pdev->dev, skge->mem_size, skge->mem, + skge->dma); + skge->mem = NULL; + + return err; +} + +/* stop receiver */ +static void skge_rx_stop(struct skge_hw *hw, int port) +{ + skge_write8(hw, Q_ADDR(rxqaddr[port], Q_CSR), CSR_STOP); + skge_write32(hw, RB_ADDR(port ? Q_R2 : Q_R1, RB_CTRL), + RB_RST_SET|RB_DIS_OP_MD); + skge_write32(hw, Q_ADDR(rxqaddr[port], Q_CSR), CSR_SET_RESET); +} + +static int skge_down(struct net_device *dev) +{ + struct skge_port *skge = netdev_priv(dev); + struct skge_hw *hw = skge->hw; + int port = skge->port; + + if (!skge->mem) + return 0; + + netif_info(skge, ifdown, skge->netdev, "disabling interface\n"); + + netif_tx_disable(dev); + + if (is_genesis(hw) && hw->phy_type == SK_PHY_XMAC) + del_timer_sync(&skge->link_timer); + + napi_disable(&skge->napi); + netif_carrier_off(dev); + + spin_lock_irq(&hw->hw_lock); + hw->intr_mask &= ~portmask[port]; + skge_write32(hw, B0_IMSK, (hw->ports == 1) ? 0 : hw->intr_mask); + skge_read32(hw, B0_IMSK); + spin_unlock_irq(&hw->hw_lock); + + if (hw->ports == 1) + free_irq(hw->pdev->irq, hw); + + skge_write8(skge->hw, SK_REG(skge->port, LNK_LED_REG), LED_REG_OFF); + if (is_genesis(hw)) + genesis_stop(skge); + else + yukon_stop(skge); + + /* Stop transmitter */ + skge_write8(hw, Q_ADDR(txqaddr[port], Q_CSR), CSR_STOP); + skge_write32(hw, RB_ADDR(txqaddr[port], RB_CTRL), + RB_RST_SET|RB_DIS_OP_MD); + + + /* Disable Force Sync bit and Enable Alloc bit */ + skge_write8(hw, SK_REG(port, TXA_CTRL), + TXA_DIS_FSYNC | TXA_DIS_ALLOC | TXA_STOP_RC); + + /* Stop Interval Timer and Limit Counter of Tx Arbiter */ + skge_write32(hw, SK_REG(port, TXA_ITI_INI), 0L); + skge_write32(hw, SK_REG(port, TXA_LIM_INI), 0L); + + /* Reset PCI FIFO */ + skge_write32(hw, Q_ADDR(txqaddr[port], Q_CSR), CSR_SET_RESET); + skge_write32(hw, RB_ADDR(txqaddr[port], RB_CTRL), RB_RST_SET); + + /* Reset the RAM Buffer async Tx queue */ + skge_write8(hw, RB_ADDR(port == 0 ? Q_XA1 : Q_XA2, RB_CTRL), RB_RST_SET); + + skge_rx_stop(hw, port); + + if (is_genesis(hw)) { + skge_write8(hw, SK_REG(port, TX_MFF_CTRL2), MFF_RST_SET); + skge_write8(hw, SK_REG(port, RX_MFF_CTRL2), MFF_RST_SET); + } else { + skge_write8(hw, SK_REG(port, RX_GMF_CTRL_T), GMF_RST_SET); + skge_write8(hw, SK_REG(port, TX_GMF_CTRL_T), GMF_RST_SET); + } + + skge_led(skge, LED_MODE_OFF); + + netif_tx_lock_bh(dev); + skge_tx_clean(dev); + netif_tx_unlock_bh(dev); + + skge_rx_clean(skge); + + kfree(skge->rx_ring.start); + kfree(skge->tx_ring.start); + dma_free_coherent(&hw->pdev->dev, skge->mem_size, skge->mem, + skge->dma); + skge->mem = NULL; + return 0; +} + +static inline int skge_avail(const struct skge_ring *ring) +{ + smp_mb(); + return ((ring->to_clean > ring->to_use) ? 0 : ring->count) + + (ring->to_clean - ring->to_use) - 1; +} + +static netdev_tx_t skge_xmit_frame(struct sk_buff *skb, + struct net_device *dev) +{ + struct skge_port *skge = netdev_priv(dev); + struct skge_hw *hw = skge->hw; + struct skge_element *e; + struct skge_tx_desc *td; + int i; + u32 control, len; + dma_addr_t map; + + if (skb_padto(skb, ETH_ZLEN)) + return NETDEV_TX_OK; + + if (unlikely(skge_avail(&skge->tx_ring) < skb_shinfo(skb)->nr_frags + 1)) + return NETDEV_TX_BUSY; + + e = skge->tx_ring.to_use; + td = e->desc; + BUG_ON(td->control & BMU_OWN); + e->skb = skb; + len = skb_headlen(skb); + map = dma_map_single(&hw->pdev->dev, skb->data, len, DMA_TO_DEVICE); + if (dma_mapping_error(&hw->pdev->dev, map)) + goto mapping_error; + + dma_unmap_addr_set(e, mapaddr, map); + dma_unmap_len_set(e, maplen, len); + + td->dma_lo = lower_32_bits(map); + td->dma_hi = upper_32_bits(map); + + if (skb->ip_summed == CHECKSUM_PARTIAL) { + const int offset = skb_checksum_start_offset(skb); + + /* This seems backwards, but it is what the sk98lin + * does. Looks like hardware is wrong? + */ + if (ipip_hdr(skb)->protocol == IPPROTO_UDP && + hw->chip_rev == 0 && hw->chip_id == CHIP_ID_YUKON) + control = BMU_TCP_CHECK; + else + control = BMU_UDP_CHECK; + + td->csum_offs = 0; + td->csum_start = offset; + td->csum_write = offset + skb->csum_offset; + } else + control = BMU_CHECK; + + if (!skb_shinfo(skb)->nr_frags) /* single buffer i.e. no fragments */ + control |= BMU_EOF | BMU_IRQ_EOF; + else { + struct skge_tx_desc *tf = td; + + control |= BMU_STFWD; + for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) { + const skb_frag_t *frag = &skb_shinfo(skb)->frags[i]; + + map = skb_frag_dma_map(&hw->pdev->dev, frag, 0, + skb_frag_size(frag), DMA_TO_DEVICE); + if (dma_mapping_error(&hw->pdev->dev, map)) + goto mapping_unwind; + + e = e->next; + e->skb = skb; + tf = e->desc; + BUG_ON(tf->control & BMU_OWN); + + tf->dma_lo = lower_32_bits(map); + tf->dma_hi = upper_32_bits(map); + dma_unmap_addr_set(e, mapaddr, map); + dma_unmap_len_set(e, maplen, skb_frag_size(frag)); + + tf->control = BMU_OWN | BMU_SW | control | skb_frag_size(frag); + } + tf->control |= BMU_EOF | BMU_IRQ_EOF; + } + /* Make sure all the descriptors written */ + wmb(); + td->control = BMU_OWN | BMU_SW | BMU_STF | control | len; + wmb(); + + netdev_sent_queue(dev, skb->len); + + skge_write8(hw, Q_ADDR(txqaddr[skge->port], Q_CSR), CSR_START); + + netif_printk(skge, tx_queued, KERN_DEBUG, skge->netdev, + "tx queued, slot %td, len %d\n", + e - skge->tx_ring.start, skb->len); + + skge->tx_ring.to_use = e->next; + smp_wmb(); + + if (skge_avail(&skge->tx_ring) <= TX_LOW_WATER) { + netdev_dbg(dev, "transmit queue full\n"); + netif_stop_queue(dev); + } + + return NETDEV_TX_OK; + +mapping_unwind: + e = skge->tx_ring.to_use; + dma_unmap_single(&hw->pdev->dev, dma_unmap_addr(e, mapaddr), + dma_unmap_len(e, maplen), DMA_TO_DEVICE); + while (i-- > 0) { + e = e->next; + dma_unmap_page(&hw->pdev->dev, dma_unmap_addr(e, mapaddr), + dma_unmap_len(e, maplen), DMA_TO_DEVICE); + } + +mapping_error: + if (net_ratelimit()) + dev_warn(&hw->pdev->dev, "%s: tx mapping error\n", dev->name); + dev_kfree_skb_any(skb); + return NETDEV_TX_OK; +} + + +/* Free resources associated with this reing element */ +static inline void skge_tx_unmap(struct pci_dev *pdev, struct skge_element *e, + u32 control) +{ + /* skb header vs. fragment */ + if (control & BMU_STF) + dma_unmap_single(&pdev->dev, dma_unmap_addr(e, mapaddr), + dma_unmap_len(e, maplen), DMA_TO_DEVICE); + else + dma_unmap_page(&pdev->dev, dma_unmap_addr(e, mapaddr), + dma_unmap_len(e, maplen), DMA_TO_DEVICE); +} + +/* Free all buffers in transmit ring */ +static void skge_tx_clean(struct net_device *dev) +{ + struct skge_port *skge = netdev_priv(dev); + struct skge_element *e; + + for (e = skge->tx_ring.to_clean; e != skge->tx_ring.to_use; e = e->next) { + struct skge_tx_desc *td = e->desc; + + skge_tx_unmap(skge->hw->pdev, e, td->control); + + if (td->control & BMU_EOF) + dev_kfree_skb(e->skb); + td->control = 0; + } + + netdev_reset_queue(dev); + skge->tx_ring.to_clean = e; +} + +static void skge_tx_timeout(struct net_device *dev, unsigned int txqueue) +{ + struct skge_port *skge = netdev_priv(dev); + + netif_printk(skge, timer, KERN_DEBUG, skge->netdev, "tx timeout\n"); + + skge_write8(skge->hw, Q_ADDR(txqaddr[skge->port], Q_CSR), CSR_STOP); + skge_tx_clean(dev); + netif_wake_queue(dev); +} + +static int skge_change_mtu(struct net_device *dev, int new_mtu) +{ + int err; + + if (!netif_running(dev)) { + dev->mtu = new_mtu; + return 0; + } + + skge_down(dev); + + dev->mtu = new_mtu; + + err = skge_up(dev); + if (err) + dev_close(dev); + + return err; +} + +static const u8 pause_mc_addr[ETH_ALEN] = { 0x1, 0x80, 0xc2, 0x0, 0x0, 0x1 }; + +static void genesis_add_filter(u8 filter[8], const u8 *addr) +{ + u32 crc, bit; + + crc = ether_crc_le(ETH_ALEN, addr); + bit = ~crc & 0x3f; + filter[bit/8] |= 1 << (bit%8); +} + +static void genesis_set_multicast(struct net_device *dev) +{ + struct skge_port *skge = netdev_priv(dev); + struct skge_hw *hw = skge->hw; + int port = skge->port; + struct netdev_hw_addr *ha; + u32 mode; + u8 filter[8]; + + mode = xm_read32(hw, port, XM_MODE); + mode |= XM_MD_ENA_HASH; + if (dev->flags & IFF_PROMISC) + mode |= XM_MD_ENA_PROM; + else + mode &= ~XM_MD_ENA_PROM; + + if (dev->flags & IFF_ALLMULTI) + memset(filter, 0xff, sizeof(filter)); + else { + memset(filter, 0, sizeof(filter)); + + if (skge->flow_status == FLOW_STAT_REM_SEND || + skge->flow_status == FLOW_STAT_SYMMETRIC) + genesis_add_filter(filter, pause_mc_addr); + + netdev_for_each_mc_addr(ha, dev) + genesis_add_filter(filter, ha->addr); + } + + xm_write32(hw, port, XM_MODE, mode); + xm_outhash(hw, port, XM_HSM, filter); +} + +static void yukon_add_filter(u8 filter[8], const u8 *addr) +{ + u32 bit = ether_crc(ETH_ALEN, addr) & 0x3f; + + filter[bit / 8] |= 1 << (bit % 8); +} + +static void yukon_set_multicast(struct net_device *dev) +{ + struct skge_port *skge = netdev_priv(dev); + struct skge_hw *hw = skge->hw; + int port = skge->port; + struct netdev_hw_addr *ha; + int rx_pause = (skge->flow_status == FLOW_STAT_REM_SEND || + skge->flow_status == FLOW_STAT_SYMMETRIC); + u16 reg; + u8 filter[8]; + + memset(filter, 0, sizeof(filter)); + + reg = gma_read16(hw, port, GM_RX_CTRL); + reg |= GM_RXCR_UCF_ENA; + + if (dev->flags & IFF_PROMISC) /* promiscuous */ + reg &= ~(GM_RXCR_UCF_ENA | GM_RXCR_MCF_ENA); + else if (dev->flags & IFF_ALLMULTI) /* all multicast */ + memset(filter, 0xff, sizeof(filter)); + else if (netdev_mc_empty(dev) && !rx_pause)/* no multicast */ + reg &= ~GM_RXCR_MCF_ENA; + else { + reg |= GM_RXCR_MCF_ENA; + + if (rx_pause) + yukon_add_filter(filter, pause_mc_addr); + + netdev_for_each_mc_addr(ha, dev) + yukon_add_filter(filter, ha->addr); + } + + + gma_write16(hw, port, GM_MC_ADDR_H1, + (u16)filter[0] | ((u16)filter[1] << 8)); + gma_write16(hw, port, GM_MC_ADDR_H2, + (u16)filter[2] | ((u16)filter[3] << 8)); + gma_write16(hw, port, GM_MC_ADDR_H3, + (u16)filter[4] | ((u16)filter[5] << 8)); + gma_write16(hw, port, GM_MC_ADDR_H4, + (u16)filter[6] | ((u16)filter[7] << 8)); + + gma_write16(hw, port, GM_RX_CTRL, reg); +} + +static inline u16 phy_length(const struct skge_hw *hw, u32 status) +{ + if (is_genesis(hw)) + return status >> XMR_FS_LEN_SHIFT; + else + return status >> GMR_FS_LEN_SHIFT; +} + +static inline int bad_phy_status(const struct skge_hw *hw, u32 status) +{ + if (is_genesis(hw)) + return (status & (XMR_FS_ERR | XMR_FS_2L_VLAN)) != 0; + else + return (status & GMR_FS_ANY_ERR) || + (status & GMR_FS_RX_OK) == 0; +} + +static void skge_set_multicast(struct net_device *dev) +{ + struct skge_port *skge = netdev_priv(dev); + + if (is_genesis(skge->hw)) + genesis_set_multicast(dev); + else + yukon_set_multicast(dev); + +} + + +/* Get receive buffer from descriptor. + * Handles copy of small buffers and reallocation failures + */ +static struct sk_buff *skge_rx_get(struct net_device *dev, + struct skge_element *e, + u32 control, u32 status, u16 csum) +{ + struct skge_port *skge = netdev_priv(dev); + struct sk_buff *skb; + u16 len = control & BMU_BBC; + + netif_printk(skge, rx_status, KERN_DEBUG, skge->netdev, + "rx slot %td status 0x%x len %d\n", + e - skge->rx_ring.start, status, len); + + if (len > skge->rx_buf_size) + goto error; + + if ((control & (BMU_EOF|BMU_STF)) != (BMU_STF|BMU_EOF)) + goto error; + + if (bad_phy_status(skge->hw, status)) + goto error; + + if (phy_length(skge->hw, status) != len) + goto error; + + if (len < RX_COPY_THRESHOLD) { + skb = netdev_alloc_skb_ip_align(dev, len); + if (!skb) + goto resubmit; + + dma_sync_single_for_cpu(&skge->hw->pdev->dev, + dma_unmap_addr(e, mapaddr), + dma_unmap_len(e, maplen), + DMA_FROM_DEVICE); + skb_copy_from_linear_data(e->skb, skb->data, len); + dma_sync_single_for_device(&skge->hw->pdev->dev, + dma_unmap_addr(e, mapaddr), + dma_unmap_len(e, maplen), + DMA_FROM_DEVICE); + skge_rx_reuse(e, skge->rx_buf_size); + } else { + struct skge_element ee; + struct sk_buff *nskb; + + nskb = netdev_alloc_skb_ip_align(dev, skge->rx_buf_size); + if (!nskb) + goto resubmit; + + ee = *e; + + skb = ee.skb; + prefetch(skb->data); + + if (skge_rx_setup(skge, e, nskb, skge->rx_buf_size) < 0) { + dev_kfree_skb(nskb); + goto resubmit; + } + + dma_unmap_single(&skge->hw->pdev->dev, + dma_unmap_addr(&ee, mapaddr), + dma_unmap_len(&ee, maplen), DMA_FROM_DEVICE); + } + + skb_put(skb, len); + + if (dev->features & NETIF_F_RXCSUM) { + skb->csum = le16_to_cpu(csum); + skb->ip_summed = CHECKSUM_COMPLETE; + } + + skb->protocol = eth_type_trans(skb, dev); + + return skb; +error: + + netif_printk(skge, rx_err, KERN_DEBUG, skge->netdev, + "rx err, slot %td control 0x%x status 0x%x\n", + e - skge->rx_ring.start, control, status); + + if (is_genesis(skge->hw)) { + if (status & (XMR_FS_RUNT|XMR_FS_LNG_ERR)) + dev->stats.rx_length_errors++; + if (status & XMR_FS_FRA_ERR) + dev->stats.rx_frame_errors++; + if (status & XMR_FS_FCS_ERR) + dev->stats.rx_crc_errors++; + } else { + if (status & (GMR_FS_LONG_ERR|GMR_FS_UN_SIZE)) + dev->stats.rx_length_errors++; + if (status & GMR_FS_FRAGMENT) + dev->stats.rx_frame_errors++; + if (status & GMR_FS_CRC_ERR) + dev->stats.rx_crc_errors++; + } + +resubmit: + skge_rx_reuse(e, skge->rx_buf_size); + return NULL; +} + +/* Free all buffers in Tx ring which are no longer owned by device */ +static void skge_tx_done(struct net_device *dev) +{ + struct skge_port *skge = netdev_priv(dev); + struct skge_ring *ring = &skge->tx_ring; + struct skge_element *e; + unsigned int bytes_compl = 0, pkts_compl = 0; + + skge_write8(skge->hw, Q_ADDR(txqaddr[skge->port], Q_CSR), CSR_IRQ_CL_F); + + for (e = ring->to_clean; e != ring->to_use; e = e->next) { + u32 control = ((const struct skge_tx_desc *) e->desc)->control; + + if (control & BMU_OWN) + break; + + skge_tx_unmap(skge->hw->pdev, e, control); + + if (control & BMU_EOF) { + netif_printk(skge, tx_done, KERN_DEBUG, skge->netdev, + "tx done slot %td\n", + e - skge->tx_ring.start); + + pkts_compl++; + bytes_compl += e->skb->len; + + dev_consume_skb_any(e->skb); + } + } + netdev_completed_queue(dev, pkts_compl, bytes_compl); + skge->tx_ring.to_clean = e; + + /* Can run lockless until we need to synchronize to restart queue. */ + smp_mb(); + + if (unlikely(netif_queue_stopped(dev) && + skge_avail(&skge->tx_ring) > TX_LOW_WATER)) { + netif_tx_lock(dev); + if (unlikely(netif_queue_stopped(dev) && + skge_avail(&skge->tx_ring) > TX_LOW_WATER)) { + netif_wake_queue(dev); + + } + netif_tx_unlock(dev); + } +} + +static int skge_poll(struct napi_struct *napi, int budget) +{ + struct skge_port *skge = container_of(napi, struct skge_port, napi); + struct net_device *dev = skge->netdev; + struct skge_hw *hw = skge->hw; + struct skge_ring *ring = &skge->rx_ring; + struct skge_element *e; + int work_done = 0; + + skge_tx_done(dev); + + skge_write8(hw, Q_ADDR(rxqaddr[skge->port], Q_CSR), CSR_IRQ_CL_F); + + for (e = ring->to_clean; prefetch(e->next), work_done < budget; e = e->next) { + struct skge_rx_desc *rd = e->desc; + struct sk_buff *skb; + u32 control; + + rmb(); + control = rd->control; + if (control & BMU_OWN) + break; + + skb = skge_rx_get(dev, e, control, rd->status, rd->csum2); + if (likely(skb)) { + napi_gro_receive(napi, skb); + ++work_done; + } + } + ring->to_clean = e; + + /* restart receiver */ + wmb(); + skge_write8(hw, Q_ADDR(rxqaddr[skge->port], Q_CSR), CSR_START); + + if (work_done < budget && napi_complete_done(napi, work_done)) { + unsigned long flags; + + spin_lock_irqsave(&hw->hw_lock, flags); + hw->intr_mask |= napimask[skge->port]; + skge_write32(hw, B0_IMSK, hw->intr_mask); + skge_read32(hw, B0_IMSK); + spin_unlock_irqrestore(&hw->hw_lock, flags); + } + + return work_done; +} + +/* Parity errors seem to happen when Genesis is connected to a switch + * with no other ports present. Heartbeat error?? + */ +static void skge_mac_parity(struct skge_hw *hw, int port) +{ + struct net_device *dev = hw->dev[port]; + + ++dev->stats.tx_heartbeat_errors; + + if (is_genesis(hw)) + skge_write16(hw, SK_REG(port, TX_MFF_CTRL1), + MFF_CLR_PERR); + else + /* HW-Bug #8: cleared by GMF_CLI_TX_FC instead of GMF_CLI_TX_PE */ + skge_write8(hw, SK_REG(port, TX_GMF_CTRL_T), + (hw->chip_id == CHIP_ID_YUKON && hw->chip_rev == 0) + ? GMF_CLI_TX_FC : GMF_CLI_TX_PE); +} + +static void skge_mac_intr(struct skge_hw *hw, int port) +{ + if (is_genesis(hw)) + genesis_mac_intr(hw, port); + else + yukon_mac_intr(hw, port); +} + +/* Handle device specific framing and timeout interrupts */ +static void skge_error_irq(struct skge_hw *hw) +{ + struct pci_dev *pdev = hw->pdev; + u32 hwstatus = skge_read32(hw, B0_HWE_ISRC); + + if (is_genesis(hw)) { + /* clear xmac errors */ + if (hwstatus & (IS_NO_STAT_M1|IS_NO_TIST_M1)) + skge_write16(hw, RX_MFF_CTRL1, MFF_CLR_INSTAT); + if (hwstatus & (IS_NO_STAT_M2|IS_NO_TIST_M2)) + skge_write16(hw, RX_MFF_CTRL2, MFF_CLR_INSTAT); + } else { + /* Timestamp (unused) overflow */ + if (hwstatus & IS_IRQ_TIST_OV) + skge_write8(hw, GMAC_TI_ST_CTRL, GMT_ST_CLR_IRQ); + } + + if (hwstatus & IS_RAM_RD_PAR) { + dev_err(&pdev->dev, "Ram read data parity error\n"); + skge_write16(hw, B3_RI_CTRL, RI_CLR_RD_PERR); + } + + if (hwstatus & IS_RAM_WR_PAR) { + dev_err(&pdev->dev, "Ram write data parity error\n"); + skge_write16(hw, B3_RI_CTRL, RI_CLR_WR_PERR); + } + + if (hwstatus & IS_M1_PAR_ERR) + skge_mac_parity(hw, 0); + + if (hwstatus & IS_M2_PAR_ERR) + skge_mac_parity(hw, 1); + + if (hwstatus & IS_R1_PAR_ERR) { + dev_err(&pdev->dev, "%s: receive queue parity error\n", + hw->dev[0]->name); + skge_write32(hw, B0_R1_CSR, CSR_IRQ_CL_P); + } + + if (hwstatus & IS_R2_PAR_ERR) { + dev_err(&pdev->dev, "%s: receive queue parity error\n", + hw->dev[1]->name); + skge_write32(hw, B0_R2_CSR, CSR_IRQ_CL_P); + } + + if (hwstatus & (IS_IRQ_MST_ERR|IS_IRQ_STAT)) { + u16 pci_status, pci_cmd; + + pci_read_config_word(pdev, PCI_COMMAND, &pci_cmd); + pci_read_config_word(pdev, PCI_STATUS, &pci_status); + + dev_err(&pdev->dev, "PCI error cmd=%#x status=%#x\n", + pci_cmd, pci_status); + + /* Write the error bits back to clear them. */ + pci_status &= PCI_STATUS_ERROR_BITS; + skge_write8(hw, B2_TST_CTRL1, TST_CFG_WRITE_ON); + pci_write_config_word(pdev, PCI_COMMAND, + pci_cmd | PCI_COMMAND_SERR | PCI_COMMAND_PARITY); + pci_write_config_word(pdev, PCI_STATUS, pci_status); + skge_write8(hw, B2_TST_CTRL1, TST_CFG_WRITE_OFF); + + /* if error still set then just ignore it */ + hwstatus = skge_read32(hw, B0_HWE_ISRC); + if (hwstatus & IS_IRQ_STAT) { + dev_warn(&hw->pdev->dev, "unable to clear error (so ignoring them)\n"); + hw->intr_mask &= ~IS_HW_ERR; + } + } +} + +/* + * Interrupt from PHY are handled in tasklet (softirq) + * because accessing phy registers requires spin wait which might + * cause excess interrupt latency. + */ +static void skge_extirq(struct tasklet_struct *t) +{ + struct skge_hw *hw = from_tasklet(hw, t, phy_task); + int port; + + for (port = 0; port < hw->ports; port++) { + struct net_device *dev = hw->dev[port]; + + if (netif_running(dev)) { + struct skge_port *skge = netdev_priv(dev); + + spin_lock(&hw->phy_lock); + if (!is_genesis(hw)) + yukon_phy_intr(skge); + else if (hw->phy_type == SK_PHY_BCOM) + bcom_phy_intr(skge); + spin_unlock(&hw->phy_lock); + } + } + + spin_lock_irq(&hw->hw_lock); + hw->intr_mask |= IS_EXT_REG; + skge_write32(hw, B0_IMSK, hw->intr_mask); + skge_read32(hw, B0_IMSK); + spin_unlock_irq(&hw->hw_lock); +} + +static irqreturn_t skge_intr(int irq, void *dev_id) +{ + struct skge_hw *hw = dev_id; + u32 status; + int handled = 0; + + spin_lock(&hw->hw_lock); + /* Reading this register masks IRQ */ + status = skge_read32(hw, B0_SP_ISRC); + if (status == 0 || status == ~0) + goto out; + + handled = 1; + status &= hw->intr_mask; + if (status & IS_EXT_REG) { + hw->intr_mask &= ~IS_EXT_REG; + tasklet_schedule(&hw->phy_task); + } + + if (status & (IS_XA1_F|IS_R1_F)) { + struct skge_port *skge = netdev_priv(hw->dev[0]); + hw->intr_mask &= ~(IS_XA1_F|IS_R1_F); + napi_schedule(&skge->napi); + } + + if (status & IS_PA_TO_TX1) + skge_write16(hw, B3_PA_CTRL, PA_CLR_TO_TX1); + + if (status & IS_PA_TO_RX1) { + ++hw->dev[0]->stats.rx_over_errors; + skge_write16(hw, B3_PA_CTRL, PA_CLR_TO_RX1); + } + + + if (status & IS_MAC1) + skge_mac_intr(hw, 0); + + if (hw->dev[1]) { + struct skge_port *skge = netdev_priv(hw->dev[1]); + + if (status & (IS_XA2_F|IS_R2_F)) { + hw->intr_mask &= ~(IS_XA2_F|IS_R2_F); + napi_schedule(&skge->napi); + } + + if (status & IS_PA_TO_RX2) { + ++hw->dev[1]->stats.rx_over_errors; + skge_write16(hw, B3_PA_CTRL, PA_CLR_TO_RX2); + } + + if (status & IS_PA_TO_TX2) + skge_write16(hw, B3_PA_CTRL, PA_CLR_TO_TX2); + + if (status & IS_MAC2) + skge_mac_intr(hw, 1); + } + + if (status & IS_HW_ERR) + skge_error_irq(hw); +out: + skge_write32(hw, B0_IMSK, hw->intr_mask); + skge_read32(hw, B0_IMSK); + spin_unlock(&hw->hw_lock); + + return IRQ_RETVAL(handled); +} + +#ifdef CONFIG_NET_POLL_CONTROLLER +static void skge_netpoll(struct net_device *dev) +{ + struct skge_port *skge = netdev_priv(dev); + + disable_irq(dev->irq); + skge_intr(dev->irq, skge->hw); + enable_irq(dev->irq); +} +#endif + +static int skge_set_mac_address(struct net_device *dev, void *p) +{ + struct skge_port *skge = netdev_priv(dev); + struct skge_hw *hw = skge->hw; + unsigned port = skge->port; + const struct sockaddr *addr = p; + u16 ctrl; + + if (!is_valid_ether_addr(addr->sa_data)) + return -EADDRNOTAVAIL; + + eth_hw_addr_set(dev, addr->sa_data); + + if (!netif_running(dev)) { + memcpy_toio(hw->regs + B2_MAC_1 + port*8, dev->dev_addr, ETH_ALEN); + memcpy_toio(hw->regs + B2_MAC_2 + port*8, dev->dev_addr, ETH_ALEN); + } else { + /* disable Rx */ + spin_lock_bh(&hw->phy_lock); + ctrl = gma_read16(hw, port, GM_GP_CTRL); + gma_write16(hw, port, GM_GP_CTRL, ctrl & ~GM_GPCR_RX_ENA); + + memcpy_toio(hw->regs + B2_MAC_1 + port*8, dev->dev_addr, ETH_ALEN); + memcpy_toio(hw->regs + B2_MAC_2 + port*8, dev->dev_addr, ETH_ALEN); + + if (is_genesis(hw)) + xm_outaddr(hw, port, XM_SA, dev->dev_addr); + else { + gma_set_addr(hw, port, GM_SRC_ADDR_1L, dev->dev_addr); + gma_set_addr(hw, port, GM_SRC_ADDR_2L, dev->dev_addr); + } + + gma_write16(hw, port, GM_GP_CTRL, ctrl); + spin_unlock_bh(&hw->phy_lock); + } + + return 0; +} + +static const struct { + u8 id; + const char *name; +} skge_chips[] = { + { CHIP_ID_GENESIS, "Genesis" }, + { CHIP_ID_YUKON, "Yukon" }, + { CHIP_ID_YUKON_LITE, "Yukon-Lite"}, + { CHIP_ID_YUKON_LP, "Yukon-LP"}, +}; + +static const char *skge_board_name(const struct skge_hw *hw) +{ + int i; + static char buf[16]; + + for (i = 0; i < ARRAY_SIZE(skge_chips); i++) + if (skge_chips[i].id == hw->chip_id) + return skge_chips[i].name; + + snprintf(buf, sizeof(buf), "chipid 0x%x", hw->chip_id); + return buf; +} + + +/* + * Setup the board data structure, but don't bring up + * the port(s) + */ +static int skge_reset(struct skge_hw *hw) +{ + u32 reg; + u16 ctst, pci_status; + u8 t8, mac_cfg, pmd_type; + int i; + + ctst = skge_read16(hw, B0_CTST); + + /* do a SW reset */ + skge_write8(hw, B0_CTST, CS_RST_SET); + skge_write8(hw, B0_CTST, CS_RST_CLR); + + /* clear PCI errors, if any */ + skge_write8(hw, B2_TST_CTRL1, TST_CFG_WRITE_ON); + skge_write8(hw, B2_TST_CTRL2, 0); + + pci_read_config_word(hw->pdev, PCI_STATUS, &pci_status); + pci_write_config_word(hw->pdev, PCI_STATUS, + pci_status | PCI_STATUS_ERROR_BITS); + skge_write8(hw, B2_TST_CTRL1, TST_CFG_WRITE_OFF); + skge_write8(hw, B0_CTST, CS_MRST_CLR); + + /* restore CLK_RUN bits (for Yukon-Lite) */ + skge_write16(hw, B0_CTST, + ctst & (CS_CLK_RUN_HOT|CS_CLK_RUN_RST|CS_CLK_RUN_ENA)); + + hw->chip_id = skge_read8(hw, B2_CHIP_ID); + hw->phy_type = skge_read8(hw, B2_E_1) & 0xf; + pmd_type = skge_read8(hw, B2_PMD_TYP); + hw->copper = (pmd_type == 'T' || pmd_type == '1'); + + switch (hw->chip_id) { + case CHIP_ID_GENESIS: +#ifdef CONFIG_SKGE_GENESIS + switch (hw->phy_type) { + case SK_PHY_XMAC: + hw->phy_addr = PHY_ADDR_XMAC; + break; + case SK_PHY_BCOM: + hw->phy_addr = PHY_ADDR_BCOM; + break; + default: + dev_err(&hw->pdev->dev, "unsupported phy type 0x%x\n", + hw->phy_type); + return -EOPNOTSUPP; + } + break; +#else + dev_err(&hw->pdev->dev, "Genesis chip detected but not configured\n"); + return -EOPNOTSUPP; +#endif + + case CHIP_ID_YUKON: + case CHIP_ID_YUKON_LITE: + case CHIP_ID_YUKON_LP: + if (hw->phy_type < SK_PHY_MARV_COPPER && pmd_type != 'S') + hw->copper = 1; + + hw->phy_addr = PHY_ADDR_MARV; + break; + + default: + dev_err(&hw->pdev->dev, "unsupported chip type 0x%x\n", + hw->chip_id); + return -EOPNOTSUPP; + } + + mac_cfg = skge_read8(hw, B2_MAC_CFG); + hw->ports = (mac_cfg & CFG_SNG_MAC) ? 1 : 2; + hw->chip_rev = (mac_cfg & CFG_CHIP_R_MSK) >> 4; + + /* read the adapters RAM size */ + t8 = skge_read8(hw, B2_E_0); + if (is_genesis(hw)) { + if (t8 == 3) { + /* special case: 4 x 64k x 36, offset = 0x80000 */ + hw->ram_size = 0x100000; + hw->ram_offset = 0x80000; + } else + hw->ram_size = t8 * 512; + } else if (t8 == 0) + hw->ram_size = 0x20000; + else + hw->ram_size = t8 * 4096; + + hw->intr_mask = IS_HW_ERR; + + /* Use PHY IRQ for all but fiber based Genesis board */ + if (!(is_genesis(hw) && hw->phy_type == SK_PHY_XMAC)) + hw->intr_mask |= IS_EXT_REG; + + if (is_genesis(hw)) + genesis_init(hw); + else { + /* switch power to VCC (WA for VAUX problem) */ + skge_write8(hw, B0_POWER_CTRL, + PC_VAUX_ENA | PC_VCC_ENA | PC_VAUX_OFF | PC_VCC_ON); + + /* avoid boards with stuck Hardware error bits */ + if ((skge_read32(hw, B0_ISRC) & IS_HW_ERR) && + (skge_read32(hw, B0_HWE_ISRC) & IS_IRQ_SENSOR)) { + dev_warn(&hw->pdev->dev, "stuck hardware sensor bit\n"); + hw->intr_mask &= ~IS_HW_ERR; + } + + /* Clear PHY COMA */ + skge_write8(hw, B2_TST_CTRL1, TST_CFG_WRITE_ON); + pci_read_config_dword(hw->pdev, PCI_DEV_REG1, ®); + reg &= ~PCI_PHY_COMA; + pci_write_config_dword(hw->pdev, PCI_DEV_REG1, reg); + skge_write8(hw, B2_TST_CTRL1, TST_CFG_WRITE_OFF); + + + for (i = 0; i < hw->ports; i++) { + skge_write16(hw, SK_REG(i, GMAC_LINK_CTRL), GMLC_RST_SET); + skge_write16(hw, SK_REG(i, GMAC_LINK_CTRL), GMLC_RST_CLR); + } + } + + /* turn off hardware timer (unused) */ + skge_write8(hw, B2_TI_CTRL, TIM_STOP); + skge_write8(hw, B2_TI_CTRL, TIM_CLR_IRQ); + skge_write8(hw, B0_LED, LED_STAT_ON); + + /* enable the Tx Arbiters */ + for (i = 0; i < hw->ports; i++) + skge_write8(hw, SK_REG(i, TXA_CTRL), TXA_ENA_ARB); + + /* Initialize ram interface */ + skge_write16(hw, B3_RI_CTRL, RI_RST_CLR); + + skge_write8(hw, B3_RI_WTO_R1, SK_RI_TO_53); + skge_write8(hw, B3_RI_WTO_XA1, SK_RI_TO_53); + skge_write8(hw, B3_RI_WTO_XS1, SK_RI_TO_53); + skge_write8(hw, B3_RI_RTO_R1, SK_RI_TO_53); + skge_write8(hw, B3_RI_RTO_XA1, SK_RI_TO_53); + skge_write8(hw, B3_RI_RTO_XS1, SK_RI_TO_53); + skge_write8(hw, B3_RI_WTO_R2, SK_RI_TO_53); + skge_write8(hw, B3_RI_WTO_XA2, SK_RI_TO_53); + skge_write8(hw, B3_RI_WTO_XS2, SK_RI_TO_53); + skge_write8(hw, B3_RI_RTO_R2, SK_RI_TO_53); + skge_write8(hw, B3_RI_RTO_XA2, SK_RI_TO_53); + skge_write8(hw, B3_RI_RTO_XS2, SK_RI_TO_53); + + skge_write32(hw, B0_HWE_IMSK, IS_ERR_MSK); + + /* Set interrupt moderation for Transmit only + * Receive interrupts avoided by NAPI + */ + skge_write32(hw, B2_IRQM_MSK, IS_XA1_F|IS_XA2_F); + skge_write32(hw, B2_IRQM_INI, skge_usecs2clk(hw, 100)); + skge_write32(hw, B2_IRQM_CTRL, TIM_START); + + /* Leave irq disabled until first port is brought up. */ + skge_write32(hw, B0_IMSK, 0); + + for (i = 0; i < hw->ports; i++) { + if (is_genesis(hw)) + genesis_reset(hw, i); + else + yukon_reset(hw, i); + } + + return 0; +} + + +#ifdef CONFIG_SKGE_DEBUG + +static struct dentry *skge_debug; + +static int skge_debug_show(struct seq_file *seq, void *v) +{ + struct net_device *dev = seq->private; + const struct skge_port *skge = netdev_priv(dev); + const struct skge_hw *hw = skge->hw; + const struct skge_element *e; + + if (!netif_running(dev)) + return -ENETDOWN; + + seq_printf(seq, "IRQ src=%x mask=%x\n", skge_read32(hw, B0_ISRC), + skge_read32(hw, B0_IMSK)); + + seq_printf(seq, "Tx Ring: (%d)\n", skge_avail(&skge->tx_ring)); + for (e = skge->tx_ring.to_clean; e != skge->tx_ring.to_use; e = e->next) { + const struct skge_tx_desc *t = e->desc; + seq_printf(seq, "%#x dma=%#x%08x %#x csum=%#x/%x/%x\n", + t->control, t->dma_hi, t->dma_lo, t->status, + t->csum_offs, t->csum_write, t->csum_start); + } + + seq_puts(seq, "\nRx Ring:\n"); + for (e = skge->rx_ring.to_clean; ; e = e->next) { + const struct skge_rx_desc *r = e->desc; + + if (r->control & BMU_OWN) + break; + + seq_printf(seq, "%#x dma=%#x%08x %#x %#x csum=%#x/%x\n", + r->control, r->dma_hi, r->dma_lo, r->status, + r->timestamp, r->csum1, r->csum1_start); + } + + return 0; +} +DEFINE_SHOW_ATTRIBUTE(skge_debug); + +/* + * Use network device events to create/remove/rename + * debugfs file entries + */ +static int skge_device_event(struct notifier_block *unused, + unsigned long event, void *ptr) +{ + struct net_device *dev = netdev_notifier_info_to_dev(ptr); + struct skge_port *skge; + + if (dev->netdev_ops->ndo_open != &skge_up || !skge_debug) + goto done; + + skge = netdev_priv(dev); + switch (event) { + case NETDEV_CHANGENAME: + if (skge->debugfs) + skge->debugfs = debugfs_rename(skge_debug, + skge->debugfs, + skge_debug, dev->name); + break; + + case NETDEV_GOING_DOWN: + debugfs_remove(skge->debugfs); + skge->debugfs = NULL; + break; + + case NETDEV_UP: + skge->debugfs = debugfs_create_file(dev->name, 0444, skge_debug, + dev, &skge_debug_fops); + break; + } + +done: + return NOTIFY_DONE; +} + +static struct notifier_block skge_notifier = { + .notifier_call = skge_device_event, +}; + + +static __init void skge_debug_init(void) +{ + skge_debug = debugfs_create_dir("skge", NULL); + + register_netdevice_notifier(&skge_notifier); +} + +static __exit void skge_debug_cleanup(void) +{ + if (skge_debug) { + unregister_netdevice_notifier(&skge_notifier); + debugfs_remove(skge_debug); + skge_debug = NULL; + } +} + +#else +#define skge_debug_init() +#define skge_debug_cleanup() +#endif + +static const struct net_device_ops skge_netdev_ops = { + .ndo_open = skge_up, + .ndo_stop = skge_down, + .ndo_start_xmit = skge_xmit_frame, + .ndo_eth_ioctl = skge_ioctl, + .ndo_get_stats = skge_get_stats, + .ndo_tx_timeout = skge_tx_timeout, + .ndo_change_mtu = skge_change_mtu, + .ndo_validate_addr = eth_validate_addr, + .ndo_set_rx_mode = skge_set_multicast, + .ndo_set_mac_address = skge_set_mac_address, +#ifdef CONFIG_NET_POLL_CONTROLLER + .ndo_poll_controller = skge_netpoll, +#endif +}; + + +/* Initialize network device */ +static struct net_device *skge_devinit(struct skge_hw *hw, int port, + int highmem) +{ + struct skge_port *skge; + struct net_device *dev = alloc_etherdev(sizeof(*skge)); + u8 addr[ETH_ALEN]; + + if (!dev) + return NULL; + + SET_NETDEV_DEV(dev, &hw->pdev->dev); + dev->netdev_ops = &skge_netdev_ops; + dev->ethtool_ops = &skge_ethtool_ops; + dev->watchdog_timeo = TX_WATCHDOG; + dev->irq = hw->pdev->irq; + + /* MTU range: 60 - 9000 */ + dev->min_mtu = ETH_ZLEN; + dev->max_mtu = ETH_JUMBO_MTU; + + if (highmem) + dev->features |= NETIF_F_HIGHDMA; + + skge = netdev_priv(dev); + netif_napi_add(dev, &skge->napi, skge_poll); + skge->netdev = dev; + skge->hw = hw; + skge->msg_enable = netif_msg_init(debug, default_msg); + + skge->tx_ring.count = DEFAULT_TX_RING_SIZE; + skge->rx_ring.count = DEFAULT_RX_RING_SIZE; + + /* Auto speed and flow control */ + skge->autoneg = AUTONEG_ENABLE; + skge->flow_control = FLOW_MODE_SYM_OR_REM; + skge->duplex = -1; + skge->speed = -1; + skge->advertising = skge_supported_modes(hw); + + if (device_can_wakeup(&hw->pdev->dev)) { + skge->wol = wol_supported(hw) & WAKE_MAGIC; + device_set_wakeup_enable(&hw->pdev->dev, skge->wol); + } + + hw->dev[port] = dev; + + skge->port = port; + + /* Only used for Genesis XMAC */ + if (is_genesis(hw)) + timer_setup(&skge->link_timer, xm_link_timer, 0); + else { + dev->hw_features = NETIF_F_IP_CSUM | NETIF_F_SG | + NETIF_F_RXCSUM; + dev->features |= dev->hw_features; + } + + /* read the mac address */ + memcpy_fromio(addr, hw->regs + B2_MAC_1 + port*8, ETH_ALEN); + eth_hw_addr_set(dev, addr); + + return dev; +} + +static void skge_show_addr(struct net_device *dev) +{ + const struct skge_port *skge = netdev_priv(dev); + + netif_info(skge, probe, skge->netdev, "addr %pM\n", dev->dev_addr); +} + +static int only_32bit_dma; + +static int skge_probe(struct pci_dev *pdev, const struct pci_device_id *ent) +{ + struct net_device *dev, *dev1; + struct skge_hw *hw; + int err, using_dac = 0; + + err = pci_enable_device(pdev); + if (err) { + dev_err(&pdev->dev, "cannot enable PCI device\n"); + goto err_out; + } + + err = pci_request_regions(pdev, DRV_NAME); + if (err) { + dev_err(&pdev->dev, "cannot obtain PCI resources\n"); + goto err_out_disable_pdev; + } + + pci_set_master(pdev); + + if (!only_32bit_dma && !dma_set_mask(&pdev->dev, DMA_BIT_MASK(64))) { + using_dac = 1; + err = dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(64)); + } else if (!(err = dma_set_mask(&pdev->dev, DMA_BIT_MASK(32)))) { + using_dac = 0; + err = dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(32)); + } + + if (err) { + dev_err(&pdev->dev, "no usable DMA configuration\n"); + goto err_out_free_regions; + } + +#ifdef __BIG_ENDIAN + /* byte swap descriptors in hardware */ + { + u32 reg; + + pci_read_config_dword(pdev, PCI_DEV_REG2, ®); + reg |= PCI_REV_DESC; + pci_write_config_dword(pdev, PCI_DEV_REG2, reg); + } +#endif + + err = -ENOMEM; + /* space for skge@pci:0000:04:00.0 */ + hw = kzalloc(sizeof(*hw) + strlen(DRV_NAME "@pci:") + + strlen(pci_name(pdev)) + 1, GFP_KERNEL); + if (!hw) + goto err_out_free_regions; + + sprintf(hw->irq_name, DRV_NAME "@pci:%s", pci_name(pdev)); + + hw->pdev = pdev; + spin_lock_init(&hw->hw_lock); + spin_lock_init(&hw->phy_lock); + tasklet_setup(&hw->phy_task, skge_extirq); + + hw->regs = ioremap(pci_resource_start(pdev, 0), 0x4000); + if (!hw->regs) { + dev_err(&pdev->dev, "cannot map device registers\n"); + goto err_out_free_hw; + } + + err = skge_reset(hw); + if (err) + goto err_out_iounmap; + + pr_info("%s addr 0x%llx irq %d chip %s rev %d\n", + DRV_VERSION, + (unsigned long long)pci_resource_start(pdev, 0), pdev->irq, + skge_board_name(hw), hw->chip_rev); + + dev = skge_devinit(hw, 0, using_dac); + if (!dev) { + err = -ENOMEM; + goto err_out_led_off; + } + + /* Some motherboards are broken and has zero in ROM. */ + if (!is_valid_ether_addr(dev->dev_addr)) + dev_warn(&pdev->dev, "bad (zero?) ethernet address in rom\n"); + + err = register_netdev(dev); + if (err) { + dev_err(&pdev->dev, "cannot register net device\n"); + goto err_out_free_netdev; + } + + skge_show_addr(dev); + + if (hw->ports > 1) { + dev1 = skge_devinit(hw, 1, using_dac); + if (!dev1) { + err = -ENOMEM; + goto err_out_unregister; + } + + err = register_netdev(dev1); + if (err) { + dev_err(&pdev->dev, "cannot register second net device\n"); + goto err_out_free_dev1; + } + + err = request_irq(pdev->irq, skge_intr, IRQF_SHARED, + hw->irq_name, hw); + if (err) { + dev_err(&pdev->dev, "cannot assign irq %d\n", + pdev->irq); + goto err_out_unregister_dev1; + } + + skge_show_addr(dev1); + } + pci_set_drvdata(pdev, hw); + + return 0; + +err_out_unregister_dev1: + unregister_netdev(dev1); +err_out_free_dev1: + free_netdev(dev1); +err_out_unregister: + unregister_netdev(dev); +err_out_free_netdev: + free_netdev(dev); +err_out_led_off: + skge_write16(hw, B0_LED, LED_STAT_OFF); +err_out_iounmap: + iounmap(hw->regs); +err_out_free_hw: + kfree(hw); +err_out_free_regions: + pci_release_regions(pdev); +err_out_disable_pdev: + pci_disable_device(pdev); +err_out: + return err; +} + +static void skge_remove(struct pci_dev *pdev) +{ + struct skge_hw *hw = pci_get_drvdata(pdev); + struct net_device *dev0, *dev1; + + if (!hw) + return; + + dev1 = hw->dev[1]; + if (dev1) + unregister_netdev(dev1); + dev0 = hw->dev[0]; + unregister_netdev(dev0); + + tasklet_kill(&hw->phy_task); + + spin_lock_irq(&hw->hw_lock); + hw->intr_mask = 0; + + if (hw->ports > 1) { + skge_write32(hw, B0_IMSK, 0); + skge_read32(hw, B0_IMSK); + } + spin_unlock_irq(&hw->hw_lock); + + skge_write16(hw, B0_LED, LED_STAT_OFF); + skge_write8(hw, B0_CTST, CS_RST_SET); + + if (hw->ports > 1) + free_irq(pdev->irq, hw); + pci_release_regions(pdev); + pci_disable_device(pdev); + if (dev1) + free_netdev(dev1); + free_netdev(dev0); + + iounmap(hw->regs); + kfree(hw); +} + +#ifdef CONFIG_PM_SLEEP +static int skge_suspend(struct device *dev) +{ + struct skge_hw *hw = dev_get_drvdata(dev); + int i; + + if (!hw) + return 0; + + for (i = 0; i < hw->ports; i++) { + struct net_device *dev = hw->dev[i]; + struct skge_port *skge = netdev_priv(dev); + + if (netif_running(dev)) + skge_down(dev); + + if (skge->wol) + skge_wol_init(skge); + } + + skge_write32(hw, B0_IMSK, 0); + + return 0; +} + +static int skge_resume(struct device *dev) +{ + struct skge_hw *hw = dev_get_drvdata(dev); + int i, err; + + if (!hw) + return 0; + + err = skge_reset(hw); + if (err) + goto out; + + for (i = 0; i < hw->ports; i++) { + struct net_device *dev = hw->dev[i]; + + if (netif_running(dev)) { + err = skge_up(dev); + + if (err) { + netdev_err(dev, "could not up: %d\n", err); + dev_close(dev); + goto out; + } + } + } +out: + return err; +} + +static SIMPLE_DEV_PM_OPS(skge_pm_ops, skge_suspend, skge_resume); +#define SKGE_PM_OPS (&skge_pm_ops) + +#else + +#define SKGE_PM_OPS NULL +#endif /* CONFIG_PM_SLEEP */ + +static void skge_shutdown(struct pci_dev *pdev) +{ + struct skge_hw *hw = pci_get_drvdata(pdev); + int i; + + if (!hw) + return; + + for (i = 0; i < hw->ports; i++) { + struct net_device *dev = hw->dev[i]; + struct skge_port *skge = netdev_priv(dev); + + if (skge->wol) + skge_wol_init(skge); + } + + pci_wake_from_d3(pdev, device_may_wakeup(&pdev->dev)); + pci_set_power_state(pdev, PCI_D3hot); +} + +static struct pci_driver skge_driver = { + .name = DRV_NAME, + .id_table = skge_id_table, + .probe = skge_probe, + .remove = skge_remove, + .shutdown = skge_shutdown, + .driver.pm = SKGE_PM_OPS, +}; + +static const struct dmi_system_id skge_32bit_dma_boards[] = { + { + .ident = "Gigabyte nForce boards", + .matches = { + DMI_MATCH(DMI_BOARD_VENDOR, "Gigabyte Technology Co"), + DMI_MATCH(DMI_BOARD_NAME, "nForce"), + }, + }, + { + .ident = "ASUS P5NSLI", + .matches = { + DMI_MATCH(DMI_BOARD_VENDOR, "ASUSTeK Computer INC."), + DMI_MATCH(DMI_BOARD_NAME, "P5NSLI") + }, + }, + { + .ident = "FUJITSU SIEMENS A8NE-FM", + .matches = { + DMI_MATCH(DMI_BOARD_VENDOR, "ASUSTek Computer INC."), + DMI_MATCH(DMI_BOARD_NAME, "A8NE-FM") + }, + }, + {} +}; + +static int __init skge_init_module(void) +{ + if (dmi_check_system(skge_32bit_dma_boards)) + only_32bit_dma = 1; + skge_debug_init(); + return pci_register_driver(&skge_driver); +} + +static void __exit skge_cleanup_module(void) +{ + pci_unregister_driver(&skge_driver); + skge_debug_cleanup(); +} + +module_init(skge_init_module); +module_exit(skge_cleanup_module); diff --git a/drivers/net/ethernet/marvell/skge.h b/drivers/net/ethernet/marvell/skge.h new file mode 100644 index 000000000..f72217348 --- /dev/null +++ b/drivers/net/ethernet/marvell/skge.h @@ -0,0 +1,2579 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * Definitions for the new Marvell Yukon / SysKonnect driver. + */ +#ifndef _SKGE_H +#define _SKGE_H +#include <linux/interrupt.h> + +/* PCI config registers */ +#define PCI_DEV_REG1 0x40 +#define PCI_PHY_COMA 0x8000000 +#define PCI_VIO 0x2000000 + +#define PCI_DEV_REG2 0x44 +#define PCI_VPD_ROM_SZ 7L<<14 /* VPD ROM size 0=256, 1=512, ... */ +#define PCI_REV_DESC 1<<2 /* Reverse Descriptor bytes */ + +enum csr_regs { + B0_RAP = 0x0000, + B0_CTST = 0x0004, + B0_LED = 0x0006, + B0_POWER_CTRL = 0x0007, + B0_ISRC = 0x0008, + B0_IMSK = 0x000c, + B0_HWE_ISRC = 0x0010, + B0_HWE_IMSK = 0x0014, + B0_SP_ISRC = 0x0018, + B0_XM1_IMSK = 0x0020, + B0_XM1_ISRC = 0x0028, + B0_XM1_PHY_ADDR = 0x0030, + B0_XM1_PHY_DATA = 0x0034, + B0_XM2_IMSK = 0x0040, + B0_XM2_ISRC = 0x0048, + B0_XM2_PHY_ADDR = 0x0050, + B0_XM2_PHY_DATA = 0x0054, + B0_R1_CSR = 0x0060, + B0_R2_CSR = 0x0064, + B0_XS1_CSR = 0x0068, + B0_XA1_CSR = 0x006c, + B0_XS2_CSR = 0x0070, + B0_XA2_CSR = 0x0074, + + B2_MAC_1 = 0x0100, + B2_MAC_2 = 0x0108, + B2_MAC_3 = 0x0110, + B2_CONN_TYP = 0x0118, + B2_PMD_TYP = 0x0119, + B2_MAC_CFG = 0x011a, + B2_CHIP_ID = 0x011b, + B2_E_0 = 0x011c, + B2_E_1 = 0x011d, + B2_E_2 = 0x011e, + B2_E_3 = 0x011f, + B2_FAR = 0x0120, + B2_FDP = 0x0124, + B2_LD_CTRL = 0x0128, + B2_LD_TEST = 0x0129, + B2_TI_INI = 0x0130, + B2_TI_VAL = 0x0134, + B2_TI_CTRL = 0x0138, + B2_TI_TEST = 0x0139, + B2_IRQM_INI = 0x0140, + B2_IRQM_VAL = 0x0144, + B2_IRQM_CTRL = 0x0148, + B2_IRQM_TEST = 0x0149, + B2_IRQM_MSK = 0x014c, + B2_IRQM_HWE_MSK = 0x0150, + B2_TST_CTRL1 = 0x0158, + B2_TST_CTRL2 = 0x0159, + B2_GP_IO = 0x015c, + B2_I2C_CTRL = 0x0160, + B2_I2C_DATA = 0x0164, + B2_I2C_IRQ = 0x0168, + B2_I2C_SW = 0x016c, + B2_BSC_INI = 0x0170, + B2_BSC_VAL = 0x0174, + B2_BSC_CTRL = 0x0178, + B2_BSC_STAT = 0x0179, + B2_BSC_TST = 0x017a, + + B3_RAM_ADDR = 0x0180, + B3_RAM_DATA_LO = 0x0184, + B3_RAM_DATA_HI = 0x0188, + B3_RI_WTO_R1 = 0x0190, + B3_RI_WTO_XA1 = 0x0191, + B3_RI_WTO_XS1 = 0x0192, + B3_RI_RTO_R1 = 0x0193, + B3_RI_RTO_XA1 = 0x0194, + B3_RI_RTO_XS1 = 0x0195, + B3_RI_WTO_R2 = 0x0196, + B3_RI_WTO_XA2 = 0x0197, + B3_RI_WTO_XS2 = 0x0198, + B3_RI_RTO_R2 = 0x0199, + B3_RI_RTO_XA2 = 0x019a, + B3_RI_RTO_XS2 = 0x019b, + B3_RI_TO_VAL = 0x019c, + B3_RI_CTRL = 0x01a0, + B3_RI_TEST = 0x01a2, + B3_MA_TOINI_RX1 = 0x01b0, + B3_MA_TOINI_RX2 = 0x01b1, + B3_MA_TOINI_TX1 = 0x01b2, + B3_MA_TOINI_TX2 = 0x01b3, + B3_MA_TOVAL_RX1 = 0x01b4, + B3_MA_TOVAL_RX2 = 0x01b5, + B3_MA_TOVAL_TX1 = 0x01b6, + B3_MA_TOVAL_TX2 = 0x01b7, + B3_MA_TO_CTRL = 0x01b8, + B3_MA_TO_TEST = 0x01ba, + B3_MA_RCINI_RX1 = 0x01c0, + B3_MA_RCINI_RX2 = 0x01c1, + B3_MA_RCINI_TX1 = 0x01c2, + B3_MA_RCINI_TX2 = 0x01c3, + B3_MA_RCVAL_RX1 = 0x01c4, + B3_MA_RCVAL_RX2 = 0x01c5, + B3_MA_RCVAL_TX1 = 0x01c6, + B3_MA_RCVAL_TX2 = 0x01c7, + B3_MA_RC_CTRL = 0x01c8, + B3_MA_RC_TEST = 0x01ca, + B3_PA_TOINI_RX1 = 0x01d0, + B3_PA_TOINI_RX2 = 0x01d4, + B3_PA_TOINI_TX1 = 0x01d8, + B3_PA_TOINI_TX2 = 0x01dc, + B3_PA_TOVAL_RX1 = 0x01e0, + B3_PA_TOVAL_RX2 = 0x01e4, + B3_PA_TOVAL_TX1 = 0x01e8, + B3_PA_TOVAL_TX2 = 0x01ec, + B3_PA_CTRL = 0x01f0, + B3_PA_TEST = 0x01f2, +}; + +/* B0_CTST 16 bit Control/Status register */ +enum { + CS_CLK_RUN_HOT = 1<<13,/* CLK_RUN hot m. (YUKON-Lite only) */ + CS_CLK_RUN_RST = 1<<12,/* CLK_RUN reset (YUKON-Lite only) */ + CS_CLK_RUN_ENA = 1<<11,/* CLK_RUN enable (YUKON-Lite only) */ + CS_VAUX_AVAIL = 1<<10,/* VAUX available (YUKON only) */ + CS_BUS_CLOCK = 1<<9, /* Bus Clock 0/1 = 33/66 MHz */ + CS_BUS_SLOT_SZ = 1<<8, /* Slot Size 0/1 = 32/64 bit slot */ + CS_ST_SW_IRQ = 1<<7, /* Set IRQ SW Request */ + CS_CL_SW_IRQ = 1<<6, /* Clear IRQ SW Request */ + CS_STOP_DONE = 1<<5, /* Stop Master is finished */ + CS_STOP_MAST = 1<<4, /* Command Bit to stop the master */ + CS_MRST_CLR = 1<<3, /* Clear Master reset */ + CS_MRST_SET = 1<<2, /* Set Master reset */ + CS_RST_CLR = 1<<1, /* Clear Software reset */ + CS_RST_SET = 1, /* Set Software reset */ + +/* B0_LED 8 Bit LED register */ +/* Bit 7.. 2: reserved */ + LED_STAT_ON = 1<<1, /* Status LED on */ + LED_STAT_OFF = 1, /* Status LED off */ + +/* B0_POWER_CTRL 8 Bit Power Control reg (YUKON only) */ + PC_VAUX_ENA = 1<<7, /* Switch VAUX Enable */ + PC_VAUX_DIS = 1<<6, /* Switch VAUX Disable */ + PC_VCC_ENA = 1<<5, /* Switch VCC Enable */ + PC_VCC_DIS = 1<<4, /* Switch VCC Disable */ + PC_VAUX_ON = 1<<3, /* Switch VAUX On */ + PC_VAUX_OFF = 1<<2, /* Switch VAUX Off */ + PC_VCC_ON = 1<<1, /* Switch VCC On */ + PC_VCC_OFF = 1<<0, /* Switch VCC Off */ +}; + +/* B2_IRQM_MSK 32 bit IRQ Moderation Mask */ +enum { + IS_ALL_MSK = 0xbffffffful, /* All Interrupt bits */ + IS_HW_ERR = 1<<31, /* Interrupt HW Error */ + /* Bit 30: reserved */ + IS_PA_TO_RX1 = 1<<29, /* Packet Arb Timeout Rx1 */ + IS_PA_TO_RX2 = 1<<28, /* Packet Arb Timeout Rx2 */ + IS_PA_TO_TX1 = 1<<27, /* Packet Arb Timeout Tx1 */ + IS_PA_TO_TX2 = 1<<26, /* Packet Arb Timeout Tx2 */ + IS_I2C_READY = 1<<25, /* IRQ on end of I2C Tx */ + IS_IRQ_SW = 1<<24, /* SW forced IRQ */ + IS_EXT_REG = 1<<23, /* IRQ from LM80 or PHY (GENESIS only) */ + /* IRQ from PHY (YUKON only) */ + IS_TIMINT = 1<<22, /* IRQ from Timer */ + IS_MAC1 = 1<<21, /* IRQ from MAC 1 */ + IS_LNK_SYNC_M1 = 1<<20, /* Link Sync Cnt wrap MAC 1 */ + IS_MAC2 = 1<<19, /* IRQ from MAC 2 */ + IS_LNK_SYNC_M2 = 1<<18, /* Link Sync Cnt wrap MAC 2 */ +/* Receive Queue 1 */ + IS_R1_B = 1<<17, /* Q_R1 End of Buffer */ + IS_R1_F = 1<<16, /* Q_R1 End of Frame */ + IS_R1_C = 1<<15, /* Q_R1 Encoding Error */ +/* Receive Queue 2 */ + IS_R2_B = 1<<14, /* Q_R2 End of Buffer */ + IS_R2_F = 1<<13, /* Q_R2 End of Frame */ + IS_R2_C = 1<<12, /* Q_R2 Encoding Error */ +/* Synchronous Transmit Queue 1 */ + IS_XS1_B = 1<<11, /* Q_XS1 End of Buffer */ + IS_XS1_F = 1<<10, /* Q_XS1 End of Frame */ + IS_XS1_C = 1<<9, /* Q_XS1 Encoding Error */ +/* Asynchronous Transmit Queue 1 */ + IS_XA1_B = 1<<8, /* Q_XA1 End of Buffer */ + IS_XA1_F = 1<<7, /* Q_XA1 End of Frame */ + IS_XA1_C = 1<<6, /* Q_XA1 Encoding Error */ +/* Synchronous Transmit Queue 2 */ + IS_XS2_B = 1<<5, /* Q_XS2 End of Buffer */ + IS_XS2_F = 1<<4, /* Q_XS2 End of Frame */ + IS_XS2_C = 1<<3, /* Q_XS2 Encoding Error */ +/* Asynchronous Transmit Queue 2 */ + IS_XA2_B = 1<<2, /* Q_XA2 End of Buffer */ + IS_XA2_F = 1<<1, /* Q_XA2 End of Frame */ + IS_XA2_C = 1<<0, /* Q_XA2 Encoding Error */ + + IS_TO_PORT1 = IS_PA_TO_RX1 | IS_PA_TO_TX1, + IS_TO_PORT2 = IS_PA_TO_RX2 | IS_PA_TO_TX2, + + IS_PORT_1 = IS_XA1_F| IS_R1_F | IS_TO_PORT1 | IS_MAC1, + IS_PORT_2 = IS_XA2_F| IS_R2_F | IS_TO_PORT2 | IS_MAC2, +}; + + +/* B2_IRQM_HWE_MSK 32 bit IRQ Moderation HW Error Mask */ +enum { + IS_IRQ_TIST_OV = 1<<13, /* Time Stamp Timer Overflow (YUKON only) */ + IS_IRQ_SENSOR = 1<<12, /* IRQ from Sensor (YUKON only) */ + IS_IRQ_MST_ERR = 1<<11, /* IRQ master error detected */ + IS_IRQ_STAT = 1<<10, /* IRQ status exception */ + IS_NO_STAT_M1 = 1<<9, /* No Rx Status from MAC 1 */ + IS_NO_STAT_M2 = 1<<8, /* No Rx Status from MAC 2 */ + IS_NO_TIST_M1 = 1<<7, /* No Time Stamp from MAC 1 */ + IS_NO_TIST_M2 = 1<<6, /* No Time Stamp from MAC 2 */ + IS_RAM_RD_PAR = 1<<5, /* RAM Read Parity Error */ + IS_RAM_WR_PAR = 1<<4, /* RAM Write Parity Error */ + IS_M1_PAR_ERR = 1<<3, /* MAC 1 Parity Error */ + IS_M2_PAR_ERR = 1<<2, /* MAC 2 Parity Error */ + IS_R1_PAR_ERR = 1<<1, /* Queue R1 Parity Error */ + IS_R2_PAR_ERR = 1<<0, /* Queue R2 Parity Error */ + + IS_ERR_MSK = IS_IRQ_MST_ERR | IS_IRQ_STAT + | IS_RAM_RD_PAR | IS_RAM_WR_PAR + | IS_M1_PAR_ERR | IS_M2_PAR_ERR + | IS_R1_PAR_ERR | IS_R2_PAR_ERR, +}; + +/* B2_TST_CTRL1 8 bit Test Control Register 1 */ +enum { + TST_FRC_DPERR_MR = 1<<7, /* force DATAPERR on MST RD */ + TST_FRC_DPERR_MW = 1<<6, /* force DATAPERR on MST WR */ + TST_FRC_DPERR_TR = 1<<5, /* force DATAPERR on TRG RD */ + TST_FRC_DPERR_TW = 1<<4, /* force DATAPERR on TRG WR */ + TST_FRC_APERR_M = 1<<3, /* force ADDRPERR on MST */ + TST_FRC_APERR_T = 1<<2, /* force ADDRPERR on TRG */ + TST_CFG_WRITE_ON = 1<<1, /* Enable Config Reg WR */ + TST_CFG_WRITE_OFF= 1<<0, /* Disable Config Reg WR */ +}; + +/* B2_MAC_CFG 8 bit MAC Configuration / Chip Revision */ +enum { + CFG_CHIP_R_MSK = 0xf<<4, /* Bit 7.. 4: Chip Revision */ + /* Bit 3.. 2: reserved */ + CFG_DIS_M2_CLK = 1<<1, /* Disable Clock for 2nd MAC */ + CFG_SNG_MAC = 1<<0, /* MAC Config: 0=2 MACs / 1=1 MAC*/ +}; + +/* B2_CHIP_ID 8 bit Chip Identification Number */ +enum { + CHIP_ID_GENESIS = 0x0a, /* Chip ID for GENESIS */ + CHIP_ID_YUKON = 0xb0, /* Chip ID for YUKON */ + CHIP_ID_YUKON_LITE = 0xb1, /* Chip ID for YUKON-Lite (Rev. A1-A3) */ + CHIP_ID_YUKON_LP = 0xb2, /* Chip ID for YUKON-LP */ + CHIP_ID_YUKON_XL = 0xb3, /* Chip ID for YUKON-2 XL */ + CHIP_ID_YUKON_EC = 0xb6, /* Chip ID for YUKON-2 EC */ + CHIP_ID_YUKON_FE = 0xb7, /* Chip ID for YUKON-2 FE */ + + CHIP_REV_YU_LITE_A1 = 3, /* Chip Rev. for YUKON-Lite A1,A2 */ + CHIP_REV_YU_LITE_A3 = 7, /* Chip Rev. for YUKON-Lite A3 */ +}; + +/* B2_TI_CTRL 8 bit Timer control */ +/* B2_IRQM_CTRL 8 bit IRQ Moderation Timer Control */ +enum { + TIM_START = 1<<2, /* Start Timer */ + TIM_STOP = 1<<1, /* Stop Timer */ + TIM_CLR_IRQ = 1<<0, /* Clear Timer IRQ (!IRQM) */ +}; + +/* B2_TI_TEST 8 Bit Timer Test */ +/* B2_IRQM_TEST 8 bit IRQ Moderation Timer Test */ +/* B28_DPT_TST 8 bit Descriptor Poll Timer Test Reg */ +enum { + TIM_T_ON = 1<<2, /* Test mode on */ + TIM_T_OFF = 1<<1, /* Test mode off */ + TIM_T_STEP = 1<<0, /* Test step */ +}; + +/* B2_GP_IO 32 bit General Purpose I/O Register */ +enum { + GP_DIR_9 = 1<<25, /* IO_9 direct, 0=In/1=Out */ + GP_DIR_8 = 1<<24, /* IO_8 direct, 0=In/1=Out */ + GP_DIR_7 = 1<<23, /* IO_7 direct, 0=In/1=Out */ + GP_DIR_6 = 1<<22, /* IO_6 direct, 0=In/1=Out */ + GP_DIR_5 = 1<<21, /* IO_5 direct, 0=In/1=Out */ + GP_DIR_4 = 1<<20, /* IO_4 direct, 0=In/1=Out */ + GP_DIR_3 = 1<<19, /* IO_3 direct, 0=In/1=Out */ + GP_DIR_2 = 1<<18, /* IO_2 direct, 0=In/1=Out */ + GP_DIR_1 = 1<<17, /* IO_1 direct, 0=In/1=Out */ + GP_DIR_0 = 1<<16, /* IO_0 direct, 0=In/1=Out */ + + GP_IO_9 = 1<<9, /* IO_9 pin */ + GP_IO_8 = 1<<8, /* IO_8 pin */ + GP_IO_7 = 1<<7, /* IO_7 pin */ + GP_IO_6 = 1<<6, /* IO_6 pin */ + GP_IO_5 = 1<<5, /* IO_5 pin */ + GP_IO_4 = 1<<4, /* IO_4 pin */ + GP_IO_3 = 1<<3, /* IO_3 pin */ + GP_IO_2 = 1<<2, /* IO_2 pin */ + GP_IO_1 = 1<<1, /* IO_1 pin */ + GP_IO_0 = 1<<0, /* IO_0 pin */ +}; + +/* Descriptor Bit Definition */ +/* TxCtrl Transmit Buffer Control Field */ +/* RxCtrl Receive Buffer Control Field */ +enum { + BMU_OWN = 1<<31, /* OWN bit: 0=host/1=BMU */ + BMU_STF = 1<<30, /* Start of Frame */ + BMU_EOF = 1<<29, /* End of Frame */ + BMU_IRQ_EOB = 1<<28, /* Req "End of Buffer" IRQ */ + BMU_IRQ_EOF = 1<<27, /* Req "End of Frame" IRQ */ + /* TxCtrl specific bits */ + BMU_STFWD = 1<<26, /* (Tx) Store & Forward Frame */ + BMU_NO_FCS = 1<<25, /* (Tx) Disable MAC FCS (CRC) generation */ + BMU_SW = 1<<24, /* (Tx) 1 bit res. for SW use */ + /* RxCtrl specific bits */ + BMU_DEV_0 = 1<<26, /* (Rx) Transfer data to Dev0 */ + BMU_STAT_VAL = 1<<25, /* (Rx) Rx Status Valid */ + BMU_TIST_VAL = 1<<24, /* (Rx) Rx TimeStamp Valid */ + /* Bit 23..16: BMU Check Opcodes */ + BMU_CHECK = 0x55<<16, /* Default BMU check */ + BMU_TCP_CHECK = 0x56<<16, /* Descr with TCP ext */ + BMU_UDP_CHECK = 0x57<<16, /* Descr with UDP ext (YUKON only) */ + BMU_BBC = 0xffffL, /* Bit 15.. 0: Buffer Byte Counter */ +}; + +/* B2_BSC_CTRL 8 bit Blink Source Counter Control */ +enum { + BSC_START = 1<<1, /* Start Blink Source Counter */ + BSC_STOP = 1<<0, /* Stop Blink Source Counter */ +}; + +/* B2_BSC_STAT 8 bit Blink Source Counter Status */ +enum { + BSC_SRC = 1<<0, /* Blink Source, 0=Off / 1=On */ +}; + +/* B2_BSC_TST 16 bit Blink Source Counter Test Reg */ +enum { + BSC_T_ON = 1<<2, /* Test mode on */ + BSC_T_OFF = 1<<1, /* Test mode off */ + BSC_T_STEP = 1<<0, /* Test step */ +}; + +/* B3_RAM_ADDR 32 bit RAM Address, to read or write */ + /* Bit 31..19: reserved */ +#define RAM_ADR_RAN 0x0007ffffL /* Bit 18.. 0: RAM Address Range */ +/* RAM Interface Registers */ + +/* B3_RI_CTRL 16 bit RAM Iface Control Register */ +enum { + RI_CLR_RD_PERR = 1<<9, /* Clear IRQ RAM Read Parity Err */ + RI_CLR_WR_PERR = 1<<8, /* Clear IRQ RAM Write Parity Err*/ + + RI_RST_CLR = 1<<1, /* Clear RAM Interface Reset */ + RI_RST_SET = 1<<0, /* Set RAM Interface Reset */ +}; + +/* MAC Arbiter Registers */ +/* B3_MA_TO_CTRL 16 bit MAC Arbiter Timeout Ctrl Reg */ +enum { + MA_FOE_ON = 1<<3, /* XMAC Fast Output Enable ON */ + MA_FOE_OFF = 1<<2, /* XMAC Fast Output Enable OFF */ + MA_RST_CLR = 1<<1, /* Clear MAC Arbiter Reset */ + MA_RST_SET = 1<<0, /* Set MAC Arbiter Reset */ + +}; + +/* Timeout values */ +#define SK_MAC_TO_53 72 /* MAC arbiter timeout */ +#define SK_PKT_TO_53 0x2000 /* Packet arbiter timeout */ +#define SK_PKT_TO_MAX 0xffff /* Maximum value */ +#define SK_RI_TO_53 36 /* RAM interface timeout */ + +/* Packet Arbiter Registers */ +/* B3_PA_CTRL 16 bit Packet Arbiter Ctrl Register */ +enum { + PA_CLR_TO_TX2 = 1<<13,/* Clear IRQ Packet Timeout TX2 */ + PA_CLR_TO_TX1 = 1<<12,/* Clear IRQ Packet Timeout TX1 */ + PA_CLR_TO_RX2 = 1<<11,/* Clear IRQ Packet Timeout RX2 */ + PA_CLR_TO_RX1 = 1<<10,/* Clear IRQ Packet Timeout RX1 */ + PA_ENA_TO_TX2 = 1<<9, /* Enable Timeout Timer TX2 */ + PA_DIS_TO_TX2 = 1<<8, /* Disable Timeout Timer TX2 */ + PA_ENA_TO_TX1 = 1<<7, /* Enable Timeout Timer TX1 */ + PA_DIS_TO_TX1 = 1<<6, /* Disable Timeout Timer TX1 */ + PA_ENA_TO_RX2 = 1<<5, /* Enable Timeout Timer RX2 */ + PA_DIS_TO_RX2 = 1<<4, /* Disable Timeout Timer RX2 */ + PA_ENA_TO_RX1 = 1<<3, /* Enable Timeout Timer RX1 */ + PA_DIS_TO_RX1 = 1<<2, /* Disable Timeout Timer RX1 */ + PA_RST_CLR = 1<<1, /* Clear MAC Arbiter Reset */ + PA_RST_SET = 1<<0, /* Set MAC Arbiter Reset */ +}; + +#define PA_ENA_TO_ALL (PA_ENA_TO_RX1 | PA_ENA_TO_RX2 |\ + PA_ENA_TO_TX1 | PA_ENA_TO_TX2) + + +/* Transmit Arbiter Registers MAC 1 and 2, use SK_REG() to access */ +/* TXA_ITI_INI 32 bit Tx Arb Interval Timer Init Val */ +/* TXA_ITI_VAL 32 bit Tx Arb Interval Timer Value */ +/* TXA_LIM_INI 32 bit Tx Arb Limit Counter Init Val */ +/* TXA_LIM_VAL 32 bit Tx Arb Limit Counter Value */ + +#define TXA_MAX_VAL 0x00ffffffUL /* Bit 23.. 0: Max TXA Timer/Cnt Val */ + +/* TXA_CTRL 8 bit Tx Arbiter Control Register */ +enum { + TXA_ENA_FSYNC = 1<<7, /* Enable force of sync Tx queue */ + TXA_DIS_FSYNC = 1<<6, /* Disable force of sync Tx queue */ + TXA_ENA_ALLOC = 1<<5, /* Enable alloc of free bandwidth */ + TXA_DIS_ALLOC = 1<<4, /* Disable alloc of free bandwidth */ + TXA_START_RC = 1<<3, /* Start sync Rate Control */ + TXA_STOP_RC = 1<<2, /* Stop sync Rate Control */ + TXA_ENA_ARB = 1<<1, /* Enable Tx Arbiter */ + TXA_DIS_ARB = 1<<0, /* Disable Tx Arbiter */ +}; + +/* + * Bank 4 - 5 + */ +/* Transmit Arbiter Registers MAC 1 and 2, use SK_REG() to access */ +enum { + TXA_ITI_INI = 0x0200,/* 32 bit Tx Arb Interval Timer Init Val*/ + TXA_ITI_VAL = 0x0204,/* 32 bit Tx Arb Interval Timer Value */ + TXA_LIM_INI = 0x0208,/* 32 bit Tx Arb Limit Counter Init Val */ + TXA_LIM_VAL = 0x020c,/* 32 bit Tx Arb Limit Counter Value */ + TXA_CTRL = 0x0210,/* 8 bit Tx Arbiter Control Register */ + TXA_TEST = 0x0211,/* 8 bit Tx Arbiter Test Register */ + TXA_STAT = 0x0212,/* 8 bit Tx Arbiter Status Register */ +}; + + +enum { + B6_EXT_REG = 0x0300,/* External registers (GENESIS only) */ + B7_CFG_SPC = 0x0380,/* copy of the Configuration register */ + B8_RQ1_REGS = 0x0400,/* Receive Queue 1 */ + B8_RQ2_REGS = 0x0480,/* Receive Queue 2 */ + B8_TS1_REGS = 0x0600,/* Transmit sync queue 1 */ + B8_TA1_REGS = 0x0680,/* Transmit async queue 1 */ + B8_TS2_REGS = 0x0700,/* Transmit sync queue 2 */ + B8_TA2_REGS = 0x0780,/* Transmit sync queue 2 */ + B16_RAM_REGS = 0x0800,/* RAM Buffer Registers */ +}; + +/* Queue Register Offsets, use Q_ADDR() to access */ +enum { + B8_Q_REGS = 0x0400, /* base of Queue registers */ + Q_D = 0x00, /* 8*32 bit Current Descriptor */ + Q_DA_L = 0x20, /* 32 bit Current Descriptor Address Low dWord */ + Q_DA_H = 0x24, /* 32 bit Current Descriptor Address High dWord */ + Q_AC_L = 0x28, /* 32 bit Current Address Counter Low dWord */ + Q_AC_H = 0x2c, /* 32 bit Current Address Counter High dWord */ + Q_BC = 0x30, /* 32 bit Current Byte Counter */ + Q_CSR = 0x34, /* 32 bit BMU Control/Status Register */ + Q_F = 0x38, /* 32 bit Flag Register */ + Q_T1 = 0x3c, /* 32 bit Test Register 1 */ + Q_T1_TR = 0x3c, /* 8 bit Test Register 1 Transfer SM */ + Q_T1_WR = 0x3d, /* 8 bit Test Register 1 Write Descriptor SM */ + Q_T1_RD = 0x3e, /* 8 bit Test Register 1 Read Descriptor SM */ + Q_T1_SV = 0x3f, /* 8 bit Test Register 1 Supervisor SM */ + Q_T2 = 0x40, /* 32 bit Test Register 2 */ + Q_T3 = 0x44, /* 32 bit Test Register 3 */ + +}; +#define Q_ADDR(reg, offs) (B8_Q_REGS + (reg) + (offs)) + +/* RAM Buffer Register Offsets */ +enum { + + RB_START= 0x00,/* 32 bit RAM Buffer Start Address */ + RB_END = 0x04,/* 32 bit RAM Buffer End Address */ + RB_WP = 0x08,/* 32 bit RAM Buffer Write Pointer */ + RB_RP = 0x0c,/* 32 bit RAM Buffer Read Pointer */ + RB_RX_UTPP= 0x10,/* 32 bit Rx Upper Threshold, Pause Packet */ + RB_RX_LTPP= 0x14,/* 32 bit Rx Lower Threshold, Pause Packet */ + RB_RX_UTHP= 0x18,/* 32 bit Rx Upper Threshold, High Prio */ + RB_RX_LTHP= 0x1c,/* 32 bit Rx Lower Threshold, High Prio */ + /* 0x10 - 0x1f: reserved at Tx RAM Buffer Registers */ + RB_PC = 0x20,/* 32 bit RAM Buffer Packet Counter */ + RB_LEV = 0x24,/* 32 bit RAM Buffer Level Register */ + RB_CTRL = 0x28,/* 32 bit RAM Buffer Control Register */ + RB_TST1 = 0x29,/* 8 bit RAM Buffer Test Register 1 */ + RB_TST2 = 0x2a,/* 8 bit RAM Buffer Test Register 2 */ +}; + +/* Receive and Transmit Queues */ +enum { + Q_R1 = 0x0000, /* Receive Queue 1 */ + Q_R2 = 0x0080, /* Receive Queue 2 */ + Q_XS1 = 0x0200, /* Synchronous Transmit Queue 1 */ + Q_XA1 = 0x0280, /* Asynchronous Transmit Queue 1 */ + Q_XS2 = 0x0300, /* Synchronous Transmit Queue 2 */ + Q_XA2 = 0x0380, /* Asynchronous Transmit Queue 2 */ +}; + +/* Different MAC Types */ +enum { + SK_MAC_XMAC = 0, /* Xaqti XMAC II */ + SK_MAC_GMAC = 1, /* Marvell GMAC */ +}; + +/* Different PHY Types */ +enum { + SK_PHY_XMAC = 0,/* integrated in XMAC II */ + SK_PHY_BCOM = 1,/* Broadcom BCM5400 */ + SK_PHY_LONE = 2,/* Level One LXT1000 [not supported]*/ + SK_PHY_NAT = 3,/* National DP83891 [not supported] */ + SK_PHY_MARV_COPPER= 4,/* Marvell 88E1011S */ + SK_PHY_MARV_FIBER = 5,/* Marvell 88E1011S working on fiber */ +}; + +/* PHY addresses (bits 12..8 of PHY address reg) */ +enum { + PHY_ADDR_XMAC = 0<<8, + PHY_ADDR_BCOM = 1<<8, + +/* GPHY address (bits 15..11 of SMI control reg) */ + PHY_ADDR_MARV = 0, +}; + +#define RB_ADDR(offs, queue) ((u16)B16_RAM_REGS + (u16)(queue) + (offs)) + +/* Receive MAC FIFO, Receive LED, and Link_Sync regs (GENESIS only) */ +enum { + RX_MFF_EA = 0x0c00,/* 32 bit Receive MAC FIFO End Address */ + RX_MFF_WP = 0x0c04,/* 32 bit Receive MAC FIFO Write Pointer */ + + RX_MFF_RP = 0x0c0c,/* 32 bit Receive MAC FIFO Read Pointer */ + RX_MFF_PC = 0x0c10,/* 32 bit Receive MAC FIFO Packet Cnt */ + RX_MFF_LEV = 0x0c14,/* 32 bit Receive MAC FIFO Level */ + RX_MFF_CTRL1 = 0x0c18,/* 16 bit Receive MAC FIFO Control Reg 1*/ + RX_MFF_STAT_TO = 0x0c1a,/* 8 bit Receive MAC Status Timeout */ + RX_MFF_TIST_TO = 0x0c1b,/* 8 bit Receive MAC Time Stamp Timeout */ + RX_MFF_CTRL2 = 0x0c1c,/* 8 bit Receive MAC FIFO Control Reg 2*/ + RX_MFF_TST1 = 0x0c1d,/* 8 bit Receive MAC FIFO Test Reg 1 */ + RX_MFF_TST2 = 0x0c1e,/* 8 bit Receive MAC FIFO Test Reg 2 */ + + RX_LED_INI = 0x0c20,/* 32 bit Receive LED Cnt Init Value */ + RX_LED_VAL = 0x0c24,/* 32 bit Receive LED Cnt Current Value */ + RX_LED_CTRL = 0x0c28,/* 8 bit Receive LED Cnt Control Reg */ + RX_LED_TST = 0x0c29,/* 8 bit Receive LED Cnt Test Register */ + + LNK_SYNC_INI = 0x0c30,/* 32 bit Link Sync Cnt Init Value */ + LNK_SYNC_VAL = 0x0c34,/* 32 bit Link Sync Cnt Current Value */ + LNK_SYNC_CTRL = 0x0c38,/* 8 bit Link Sync Cnt Control Register */ + LNK_SYNC_TST = 0x0c39,/* 8 bit Link Sync Cnt Test Register */ + LNK_LED_REG = 0x0c3c,/* 8 bit Link LED Register */ +}; + +/* Receive and Transmit MAC FIFO Registers (GENESIS only) */ +/* RX_MFF_CTRL1 16 bit Receive MAC FIFO Control Reg 1 */ +enum { + MFF_ENA_RDY_PAT = 1<<13, /* Enable Ready Patch */ + MFF_DIS_RDY_PAT = 1<<12, /* Disable Ready Patch */ + MFF_ENA_TIM_PAT = 1<<11, /* Enable Timing Patch */ + MFF_DIS_TIM_PAT = 1<<10, /* Disable Timing Patch */ + MFF_ENA_ALM_FUL = 1<<9, /* Enable AlmostFull Sign */ + MFF_DIS_ALM_FUL = 1<<8, /* Disable AlmostFull Sign */ + MFF_ENA_PAUSE = 1<<7, /* Enable Pause Signaling */ + MFF_DIS_PAUSE = 1<<6, /* Disable Pause Signaling */ + MFF_ENA_FLUSH = 1<<5, /* Enable Frame Flushing */ + MFF_DIS_FLUSH = 1<<4, /* Disable Frame Flushing */ + MFF_ENA_TIST = 1<<3, /* Enable Time Stamp Gener */ + MFF_DIS_TIST = 1<<2, /* Disable Time Stamp Gener */ + MFF_CLR_INTIST = 1<<1, /* Clear IRQ No Time Stamp */ + MFF_CLR_INSTAT = 1<<0, /* Clear IRQ No Status */ + MFF_RX_CTRL_DEF = MFF_ENA_TIM_PAT, +}; + +/* TX_MFF_CTRL1 16 bit Transmit MAC FIFO Control Reg 1 */ +enum { + MFF_CLR_PERR = 1<<15, /* Clear Parity Error IRQ */ + + MFF_ENA_PKT_REC = 1<<13, /* Enable Packet Recovery */ + MFF_DIS_PKT_REC = 1<<12, /* Disable Packet Recovery */ + + MFF_ENA_W4E = 1<<7, /* Enable Wait for Empty */ + MFF_DIS_W4E = 1<<6, /* Disable Wait for Empty */ + + MFF_ENA_LOOPB = 1<<3, /* Enable Loopback */ + MFF_DIS_LOOPB = 1<<2, /* Disable Loopback */ + MFF_CLR_MAC_RST = 1<<1, /* Clear XMAC Reset */ + MFF_SET_MAC_RST = 1<<0, /* Set XMAC Reset */ + + MFF_TX_CTRL_DEF = MFF_ENA_PKT_REC | (u16) MFF_ENA_TIM_PAT | MFF_ENA_FLUSH, +}; + + +/* RX_MFF_TST2 8 bit Receive MAC FIFO Test Register 2 */ +/* TX_MFF_TST2 8 bit Transmit MAC FIFO Test Register 2 */ +enum { + MFF_WSP_T_ON = 1<<6, /* Tx: Write Shadow Ptr TestOn */ + MFF_WSP_T_OFF = 1<<5, /* Tx: Write Shadow Ptr TstOff */ + MFF_WSP_INC = 1<<4, /* Tx: Write Shadow Ptr Increment */ + MFF_PC_DEC = 1<<3, /* Packet Counter Decrement */ + MFF_PC_T_ON = 1<<2, /* Packet Counter Test On */ + MFF_PC_T_OFF = 1<<1, /* Packet Counter Test Off */ + MFF_PC_INC = 1<<0, /* Packet Counter Increment */ +}; + +/* RX_MFF_TST1 8 bit Receive MAC FIFO Test Register 1 */ +/* TX_MFF_TST1 8 bit Transmit MAC FIFO Test Register 1 */ +enum { + MFF_WP_T_ON = 1<<6, /* Write Pointer Test On */ + MFF_WP_T_OFF = 1<<5, /* Write Pointer Test Off */ + MFF_WP_INC = 1<<4, /* Write Pointer Increm */ + + MFF_RP_T_ON = 1<<2, /* Read Pointer Test On */ + MFF_RP_T_OFF = 1<<1, /* Read Pointer Test Off */ + MFF_RP_DEC = 1<<0, /* Read Pointer Decrement */ +}; + +/* RX_MFF_CTRL2 8 bit Receive MAC FIFO Control Reg 2 */ +/* TX_MFF_CTRL2 8 bit Transmit MAC FIFO Control Reg 2 */ +enum { + MFF_ENA_OP_MD = 1<<3, /* Enable Operation Mode */ + MFF_DIS_OP_MD = 1<<2, /* Disable Operation Mode */ + MFF_RST_CLR = 1<<1, /* Clear MAC FIFO Reset */ + MFF_RST_SET = 1<<0, /* Set MAC FIFO Reset */ +}; + + +/* Link LED Counter Registers (GENESIS only) */ + +/* RX_LED_CTRL 8 bit Receive LED Cnt Control Reg */ +/* TX_LED_CTRL 8 bit Transmit LED Cnt Control Reg */ +/* LNK_SYNC_CTRL 8 bit Link Sync Cnt Control Register */ +enum { + LED_START = 1<<2, /* Start Timer */ + LED_STOP = 1<<1, /* Stop Timer */ + LED_STATE = 1<<0, /* Rx/Tx: LED State, 1=LED on */ +}; + +/* RX_LED_TST 8 bit Receive LED Cnt Test Register */ +/* TX_LED_TST 8 bit Transmit LED Cnt Test Register */ +/* LNK_SYNC_TST 8 bit Link Sync Cnt Test Register */ +enum { + LED_T_ON = 1<<2, /* LED Counter Test mode On */ + LED_T_OFF = 1<<1, /* LED Counter Test mode Off */ + LED_T_STEP = 1<<0, /* LED Counter Step */ +}; + +/* LNK_LED_REG 8 bit Link LED Register */ +enum { + LED_BLK_ON = 1<<5, /* Link LED Blinking On */ + LED_BLK_OFF = 1<<4, /* Link LED Blinking Off */ + LED_SYNC_ON = 1<<3, /* Use Sync Wire to switch LED */ + LED_SYNC_OFF = 1<<2, /* Disable Sync Wire Input */ + LED_REG_ON = 1<<1, /* switch LED on */ + LED_REG_OFF = 1<<0, /* switch LED off */ +}; + +/* Receive GMAC FIFO (YUKON) */ +enum { + RX_GMF_EA = 0x0c40,/* 32 bit Rx GMAC FIFO End Address */ + RX_GMF_AF_THR = 0x0c44,/* 32 bit Rx GMAC FIFO Almost Full Thresh. */ + RX_GMF_CTRL_T = 0x0c48,/* 32 bit Rx GMAC FIFO Control/Test */ + RX_GMF_FL_MSK = 0x0c4c,/* 32 bit Rx GMAC FIFO Flush Mask */ + RX_GMF_FL_THR = 0x0c50,/* 32 bit Rx GMAC FIFO Flush Threshold */ + RX_GMF_WP = 0x0c60,/* 32 bit Rx GMAC FIFO Write Pointer */ + RX_GMF_WLEV = 0x0c68,/* 32 bit Rx GMAC FIFO Write Level */ + RX_GMF_RP = 0x0c70,/* 32 bit Rx GMAC FIFO Read Pointer */ + RX_GMF_RLEV = 0x0c78,/* 32 bit Rx GMAC FIFO Read Level */ +}; + + +/* TXA_TEST 8 bit Tx Arbiter Test Register */ +enum { + TXA_INT_T_ON = 1<<5, /* Tx Arb Interval Timer Test On */ + TXA_INT_T_OFF = 1<<4, /* Tx Arb Interval Timer Test Off */ + TXA_INT_T_STEP = 1<<3, /* Tx Arb Interval Timer Step */ + TXA_LIM_T_ON = 1<<2, /* Tx Arb Limit Timer Test On */ + TXA_LIM_T_OFF = 1<<1, /* Tx Arb Limit Timer Test Off */ + TXA_LIM_T_STEP = 1<<0, /* Tx Arb Limit Timer Step */ +}; + +/* TXA_STAT 8 bit Tx Arbiter Status Register */ +enum { + TXA_PRIO_XS = 1<<0, /* sync queue has prio to send */ +}; + + +/* Q_BC 32 bit Current Byte Counter */ + +/* BMU Control Status Registers */ +/* B0_R1_CSR 32 bit BMU Ctrl/Stat Rx Queue 1 */ +/* B0_R2_CSR 32 bit BMU Ctrl/Stat Rx Queue 2 */ +/* B0_XA1_CSR 32 bit BMU Ctrl/Stat Sync Tx Queue 1 */ +/* B0_XS1_CSR 32 bit BMU Ctrl/Stat Async Tx Queue 1 */ +/* B0_XA2_CSR 32 bit BMU Ctrl/Stat Sync Tx Queue 2 */ +/* B0_XS2_CSR 32 bit BMU Ctrl/Stat Async Tx Queue 2 */ +/* Q_CSR 32 bit BMU Control/Status Register */ + +enum { + CSR_SV_IDLE = 1<<24, /* BMU SM Idle */ + + CSR_DESC_CLR = 1<<21, /* Clear Reset for Descr */ + CSR_DESC_SET = 1<<20, /* Set Reset for Descr */ + CSR_FIFO_CLR = 1<<19, /* Clear Reset for FIFO */ + CSR_FIFO_SET = 1<<18, /* Set Reset for FIFO */ + CSR_HPI_RUN = 1<<17, /* Release HPI SM */ + CSR_HPI_RST = 1<<16, /* Reset HPI SM to Idle */ + CSR_SV_RUN = 1<<15, /* Release Supervisor SM */ + CSR_SV_RST = 1<<14, /* Reset Supervisor SM */ + CSR_DREAD_RUN = 1<<13, /* Release Descr Read SM */ + CSR_DREAD_RST = 1<<12, /* Reset Descr Read SM */ + CSR_DWRITE_RUN = 1<<11, /* Release Descr Write SM */ + CSR_DWRITE_RST = 1<<10, /* Reset Descr Write SM */ + CSR_TRANS_RUN = 1<<9, /* Release Transfer SM */ + CSR_TRANS_RST = 1<<8, /* Reset Transfer SM */ + CSR_ENA_POL = 1<<7, /* Enable Descr Polling */ + CSR_DIS_POL = 1<<6, /* Disable Descr Polling */ + CSR_STOP = 1<<5, /* Stop Rx/Tx Queue */ + CSR_START = 1<<4, /* Start Rx/Tx Queue */ + CSR_IRQ_CL_P = 1<<3, /* (Rx) Clear Parity IRQ */ + CSR_IRQ_CL_B = 1<<2, /* Clear EOB IRQ */ + CSR_IRQ_CL_F = 1<<1, /* Clear EOF IRQ */ + CSR_IRQ_CL_C = 1<<0, /* Clear ERR IRQ */ +}; + +#define CSR_SET_RESET (CSR_DESC_SET | CSR_FIFO_SET | CSR_HPI_RST |\ + CSR_SV_RST | CSR_DREAD_RST | CSR_DWRITE_RST |\ + CSR_TRANS_RST) +#define CSR_CLR_RESET (CSR_DESC_CLR | CSR_FIFO_CLR | CSR_HPI_RUN |\ + CSR_SV_RUN | CSR_DREAD_RUN | CSR_DWRITE_RUN |\ + CSR_TRANS_RUN) + +/* Q_F 32 bit Flag Register */ +enum { + F_ALM_FULL = 1<<27, /* Rx FIFO: almost full */ + F_EMPTY = 1<<27, /* Tx FIFO: empty flag */ + F_FIFO_EOF = 1<<26, /* Tag (EOF Flag) bit in FIFO */ + F_WM_REACHED = 1<<25, /* Watermark reached */ + + F_FIFO_LEVEL = 0x1fL<<16, /* Bit 23..16: # of Qwords in FIFO */ + F_WATER_MARK = 0x0007ffL, /* Bit 10.. 0: Watermark */ +}; + +/* RAM Buffer Register Offsets, use RB_ADDR(Queue, Offs) to access */ +/* RB_START 32 bit RAM Buffer Start Address */ +/* RB_END 32 bit RAM Buffer End Address */ +/* RB_WP 32 bit RAM Buffer Write Pointer */ +/* RB_RP 32 bit RAM Buffer Read Pointer */ +/* RB_RX_UTPP 32 bit Rx Upper Threshold, Pause Pack */ +/* RB_RX_LTPP 32 bit Rx Lower Threshold, Pause Pack */ +/* RB_RX_UTHP 32 bit Rx Upper Threshold, High Prio */ +/* RB_RX_LTHP 32 bit Rx Lower Threshold, High Prio */ +/* RB_PC 32 bit RAM Buffer Packet Counter */ +/* RB_LEV 32 bit RAM Buffer Level Register */ + +#define RB_MSK 0x0007ffff /* Bit 18.. 0: RAM Buffer Pointer Bits */ +/* RB_TST2 8 bit RAM Buffer Test Register 2 */ +/* RB_TST1 8 bit RAM Buffer Test Register 1 */ + +/* RB_CTRL 8 bit RAM Buffer Control Register */ +enum { + RB_ENA_STFWD = 1<<5, /* Enable Store & Forward */ + RB_DIS_STFWD = 1<<4, /* Disable Store & Forward */ + RB_ENA_OP_MD = 1<<3, /* Enable Operation Mode */ + RB_DIS_OP_MD = 1<<2, /* Disable Operation Mode */ + RB_RST_CLR = 1<<1, /* Clear RAM Buf STM Reset */ + RB_RST_SET = 1<<0, /* Set RAM Buf STM Reset */ +}; + +/* Transmit MAC FIFO and Transmit LED Registers (GENESIS only), */ +enum { + TX_MFF_EA = 0x0d00,/* 32 bit Transmit MAC FIFO End Address */ + TX_MFF_WP = 0x0d04,/* 32 bit Transmit MAC FIFO WR Pointer */ + TX_MFF_WSP = 0x0d08,/* 32 bit Transmit MAC FIFO WR Shadow Ptr */ + TX_MFF_RP = 0x0d0c,/* 32 bit Transmit MAC FIFO RD Pointer */ + TX_MFF_PC = 0x0d10,/* 32 bit Transmit MAC FIFO Packet Cnt */ + TX_MFF_LEV = 0x0d14,/* 32 bit Transmit MAC FIFO Level */ + TX_MFF_CTRL1 = 0x0d18,/* 16 bit Transmit MAC FIFO Ctrl Reg 1 */ + TX_MFF_WAF = 0x0d1a,/* 8 bit Transmit MAC Wait after flush */ + + TX_MFF_CTRL2 = 0x0d1c,/* 8 bit Transmit MAC FIFO Ctrl Reg 2 */ + TX_MFF_TST1 = 0x0d1d,/* 8 bit Transmit MAC FIFO Test Reg 1 */ + TX_MFF_TST2 = 0x0d1e,/* 8 bit Transmit MAC FIFO Test Reg 2 */ + + TX_LED_INI = 0x0d20,/* 32 bit Transmit LED Cnt Init Value */ + TX_LED_VAL = 0x0d24,/* 32 bit Transmit LED Cnt Current Val */ + TX_LED_CTRL = 0x0d28,/* 8 bit Transmit LED Cnt Control Reg */ + TX_LED_TST = 0x0d29,/* 8 bit Transmit LED Cnt Test Reg */ +}; + +/* Counter and Timer constants, for a host clock of 62.5 MHz */ +#define SK_XMIT_DUR 0x002faf08UL /* 50 ms */ +#define SK_BLK_DUR 0x01dcd650UL /* 500 ms */ + +#define SK_DPOLL_DEF 0x00ee6b28UL /* 250 ms at 62.5 MHz */ + +#define SK_DPOLL_MAX 0x00ffffffUL /* 268 ms at 62.5 MHz */ + /* 215 ms at 78.12 MHz */ + +#define SK_FACT_62 100 /* is given in percent */ +#define SK_FACT_53 85 /* on GENESIS: 53.12 MHz */ +#define SK_FACT_78 125 /* on YUKON: 78.12 MHz */ + + +/* Transmit GMAC FIFO (YUKON only) */ +enum { + TX_GMF_EA = 0x0d40,/* 32 bit Tx GMAC FIFO End Address */ + TX_GMF_AE_THR = 0x0d44,/* 32 bit Tx GMAC FIFO Almost Empty Thresh.*/ + TX_GMF_CTRL_T = 0x0d48,/* 32 bit Tx GMAC FIFO Control/Test */ + + TX_GMF_WP = 0x0d60,/* 32 bit Tx GMAC FIFO Write Pointer */ + TX_GMF_WSP = 0x0d64,/* 32 bit Tx GMAC FIFO Write Shadow Ptr. */ + TX_GMF_WLEV = 0x0d68,/* 32 bit Tx GMAC FIFO Write Level */ + + TX_GMF_RP = 0x0d70,/* 32 bit Tx GMAC FIFO Read Pointer */ + TX_GMF_RSTP = 0x0d74,/* 32 bit Tx GMAC FIFO Restart Pointer */ + TX_GMF_RLEV = 0x0d78,/* 32 bit Tx GMAC FIFO Read Level */ + + /* Descriptor Poll Timer Registers */ + B28_DPT_INI = 0x0e00,/* 24 bit Descriptor Poll Timer Init Val */ + B28_DPT_VAL = 0x0e04,/* 24 bit Descriptor Poll Timer Curr Val */ + B28_DPT_CTRL = 0x0e08,/* 8 bit Descriptor Poll Timer Ctrl Reg */ + + B28_DPT_TST = 0x0e0a,/* 8 bit Descriptor Poll Timer Test Reg */ + + /* Time Stamp Timer Registers (YUKON only) */ + GMAC_TI_ST_VAL = 0x0e14,/* 32 bit Time Stamp Timer Curr Val */ + GMAC_TI_ST_CTRL = 0x0e18,/* 8 bit Time Stamp Timer Ctrl Reg */ + GMAC_TI_ST_TST = 0x0e1a,/* 8 bit Time Stamp Timer Test Reg */ +}; + + +enum { + LINKLED_OFF = 0x01, + LINKLED_ON = 0x02, + LINKLED_LINKSYNC_OFF = 0x04, + LINKLED_LINKSYNC_ON = 0x08, + LINKLED_BLINK_OFF = 0x10, + LINKLED_BLINK_ON = 0x20, +}; + +/* GMAC and GPHY Control Registers (YUKON only) */ +enum { + GMAC_CTRL = 0x0f00,/* 32 bit GMAC Control Reg */ + GPHY_CTRL = 0x0f04,/* 32 bit GPHY Control Reg */ + GMAC_IRQ_SRC = 0x0f08,/* 8 bit GMAC Interrupt Source Reg */ + GMAC_IRQ_MSK = 0x0f0c,/* 8 bit GMAC Interrupt Mask Reg */ + GMAC_LINK_CTRL = 0x0f10,/* 16 bit Link Control Reg */ + +/* Wake-up Frame Pattern Match Control Registers (YUKON only) */ + + WOL_REG_OFFS = 0x20,/* HW-Bug: Address is + 0x20 against spec. */ + + WOL_CTRL_STAT = 0x0f20,/* 16 bit WOL Control/Status Reg */ + WOL_MATCH_CTL = 0x0f22,/* 8 bit WOL Match Control Reg */ + WOL_MATCH_RES = 0x0f23,/* 8 bit WOL Match Result Reg */ + WOL_MAC_ADDR = 0x0f24,/* 32 bit WOL MAC Address */ + WOL_PATT_RPTR = 0x0f2c,/* 8 bit WOL Pattern Read Pointer */ + +/* WOL Pattern Length Registers (YUKON only) */ + + WOL_PATT_LEN_LO = 0x0f30,/* 32 bit WOL Pattern Length 3..0 */ + WOL_PATT_LEN_HI = 0x0f34,/* 24 bit WOL Pattern Length 6..4 */ + +/* WOL Pattern Counter Registers (YUKON only) */ + + WOL_PATT_CNT_0 = 0x0f38,/* 32 bit WOL Pattern Counter 3..0 */ + WOL_PATT_CNT_4 = 0x0f3c,/* 24 bit WOL Pattern Counter 6..4 */ +}; +#define WOL_REGS(port, x) (x + (port)*0x80) + +enum { + WOL_PATT_RAM_1 = 0x1000,/* WOL Pattern RAM Link 1 */ + WOL_PATT_RAM_2 = 0x1400,/* WOL Pattern RAM Link 2 */ +}; +#define WOL_PATT_RAM_BASE(port) (WOL_PATT_RAM_1 + (port)*0x400) + +enum { + BASE_XMAC_1 = 0x2000,/* XMAC 1 registers */ + BASE_GMAC_1 = 0x2800,/* GMAC 1 registers */ + BASE_XMAC_2 = 0x3000,/* XMAC 2 registers */ + BASE_GMAC_2 = 0x3800,/* GMAC 2 registers */ +}; + +/* + * Receive Frame Status Encoding + */ +enum { + XMR_FS_LEN = 0x3fff<<18, /* Bit 31..18: Rx Frame Length */ + XMR_FS_LEN_SHIFT = 18, + XMR_FS_2L_VLAN = 1<<17, /* Bit 17: tagged wh 2Lev VLAN ID*/ + XMR_FS_1_VLAN = 1<<16, /* Bit 16: tagged wh 1ev VLAN ID*/ + XMR_FS_BC = 1<<15, /* Bit 15: Broadcast Frame */ + XMR_FS_MC = 1<<14, /* Bit 14: Multicast Frame */ + XMR_FS_UC = 1<<13, /* Bit 13: Unicast Frame */ + + XMR_FS_BURST = 1<<11, /* Bit 11: Burst Mode */ + XMR_FS_CEX_ERR = 1<<10, /* Bit 10: Carrier Ext. Error */ + XMR_FS_802_3 = 1<<9, /* Bit 9: 802.3 Frame */ + XMR_FS_COL_ERR = 1<<8, /* Bit 8: Collision Error */ + XMR_FS_CAR_ERR = 1<<7, /* Bit 7: Carrier Event Error */ + XMR_FS_LEN_ERR = 1<<6, /* Bit 6: In-Range Length Error */ + XMR_FS_FRA_ERR = 1<<5, /* Bit 5: Framing Error */ + XMR_FS_RUNT = 1<<4, /* Bit 4: Runt Frame */ + XMR_FS_LNG_ERR = 1<<3, /* Bit 3: Giant (Jumbo) Frame */ + XMR_FS_FCS_ERR = 1<<2, /* Bit 2: Frame Check Sequ Err */ + XMR_FS_ERR = 1<<1, /* Bit 1: Frame Error */ + XMR_FS_MCTRL = 1<<0, /* Bit 0: MAC Control Packet */ + +/* + * XMR_FS_ERR will be set if + * XMR_FS_FCS_ERR, XMR_FS_LNG_ERR, XMR_FS_RUNT, + * XMR_FS_FRA_ERR, XMR_FS_LEN_ERR, or XMR_FS_CEX_ERR + * is set. XMR_FS_LNG_ERR and XMR_FS_LEN_ERR will issue + * XMR_FS_ERR unless the corresponding bit in the Receive Command + * Register is set. + */ +}; + +/* +,* XMAC-PHY Registers, indirect addressed over the XMAC + */ +enum { + PHY_XMAC_CTRL = 0x00,/* 16 bit r/w PHY Control Register */ + PHY_XMAC_STAT = 0x01,/* 16 bit r/w PHY Status Register */ + PHY_XMAC_ID0 = 0x02,/* 16 bit r/o PHY ID0 Register */ + PHY_XMAC_ID1 = 0x03,/* 16 bit r/o PHY ID1 Register */ + PHY_XMAC_AUNE_ADV = 0x04,/* 16 bit r/w Auto-Neg. Advertisement */ + PHY_XMAC_AUNE_LP = 0x05,/* 16 bit r/o Link Partner Abi Reg */ + PHY_XMAC_AUNE_EXP = 0x06,/* 16 bit r/o Auto-Neg. Expansion Reg */ + PHY_XMAC_NEPG = 0x07,/* 16 bit r/w Next Page Register */ + PHY_XMAC_NEPG_LP = 0x08,/* 16 bit r/o Next Page Link Partner */ + + PHY_XMAC_EXT_STAT = 0x0f,/* 16 bit r/o Ext Status Register */ + PHY_XMAC_RES_ABI = 0x10,/* 16 bit r/o PHY Resolved Ability */ +}; +/* + * Broadcom-PHY Registers, indirect addressed over XMAC + */ +enum { + PHY_BCOM_CTRL = 0x00,/* 16 bit r/w PHY Control Register */ + PHY_BCOM_STAT = 0x01,/* 16 bit r/o PHY Status Register */ + PHY_BCOM_ID0 = 0x02,/* 16 bit r/o PHY ID0 Register */ + PHY_BCOM_ID1 = 0x03,/* 16 bit r/o PHY ID1 Register */ + PHY_BCOM_AUNE_ADV = 0x04,/* 16 bit r/w Auto-Neg. Advertisement */ + PHY_BCOM_AUNE_LP = 0x05,/* 16 bit r/o Link Part Ability Reg */ + PHY_BCOM_AUNE_EXP = 0x06,/* 16 bit r/o Auto-Neg. Expansion Reg */ + PHY_BCOM_NEPG = 0x07,/* 16 bit r/w Next Page Register */ + PHY_BCOM_NEPG_LP = 0x08,/* 16 bit r/o Next Page Link Partner */ + /* Broadcom-specific registers */ + PHY_BCOM_1000T_CTRL = 0x09,/* 16 bit r/w 1000Base-T Control Reg */ + PHY_BCOM_1000T_STAT = 0x0a,/* 16 bit r/o 1000Base-T Status Reg */ + PHY_BCOM_EXT_STAT = 0x0f,/* 16 bit r/o Extended Status Reg */ + PHY_BCOM_P_EXT_CTRL = 0x10,/* 16 bit r/w PHY Extended Ctrl Reg */ + PHY_BCOM_P_EXT_STAT = 0x11,/* 16 bit r/o PHY Extended Stat Reg */ + PHY_BCOM_RE_CTR = 0x12,/* 16 bit r/w Receive Error Counter */ + PHY_BCOM_FC_CTR = 0x13,/* 16 bit r/w False Carrier Sense Cnt */ + PHY_BCOM_RNO_CTR = 0x14,/* 16 bit r/w Receiver NOT_OK Cnt */ + + PHY_BCOM_AUX_CTRL = 0x18,/* 16 bit r/w Auxiliary Control Reg */ + PHY_BCOM_AUX_STAT = 0x19,/* 16 bit r/o Auxiliary Stat Summary */ + PHY_BCOM_INT_STAT = 0x1a,/* 16 bit r/o Interrupt Status Reg */ + PHY_BCOM_INT_MASK = 0x1b,/* 16 bit r/w Interrupt Mask Reg */ +}; + +/* + * Marvel-PHY Registers, indirect addressed over GMAC + */ +enum { + PHY_MARV_CTRL = 0x00,/* 16 bit r/w PHY Control Register */ + PHY_MARV_STAT = 0x01,/* 16 bit r/o PHY Status Register */ + PHY_MARV_ID0 = 0x02,/* 16 bit r/o PHY ID0 Register */ + PHY_MARV_ID1 = 0x03,/* 16 bit r/o PHY ID1 Register */ + PHY_MARV_AUNE_ADV = 0x04,/* 16 bit r/w Auto-Neg. Advertisement */ + PHY_MARV_AUNE_LP = 0x05,/* 16 bit r/o Link Part Ability Reg */ + PHY_MARV_AUNE_EXP = 0x06,/* 16 bit r/o Auto-Neg. Expansion Reg */ + PHY_MARV_NEPG = 0x07,/* 16 bit r/w Next Page Register */ + PHY_MARV_NEPG_LP = 0x08,/* 16 bit r/o Next Page Link Partner */ + /* Marvel-specific registers */ + PHY_MARV_1000T_CTRL = 0x09,/* 16 bit r/w 1000Base-T Control Reg */ + PHY_MARV_1000T_STAT = 0x0a,/* 16 bit r/o 1000Base-T Status Reg */ + PHY_MARV_EXT_STAT = 0x0f,/* 16 bit r/o Extended Status Reg */ + PHY_MARV_PHY_CTRL = 0x10,/* 16 bit r/w PHY Specific Ctrl Reg */ + PHY_MARV_PHY_STAT = 0x11,/* 16 bit r/o PHY Specific Stat Reg */ + PHY_MARV_INT_MASK = 0x12,/* 16 bit r/w Interrupt Mask Reg */ + PHY_MARV_INT_STAT = 0x13,/* 16 bit r/o Interrupt Status Reg */ + PHY_MARV_EXT_CTRL = 0x14,/* 16 bit r/w Ext. PHY Specific Ctrl */ + PHY_MARV_RXE_CNT = 0x15,/* 16 bit r/w Receive Error Counter */ + PHY_MARV_EXT_ADR = 0x16,/* 16 bit r/w Ext. Ad. for Cable Diag. */ + PHY_MARV_PORT_IRQ = 0x17,/* 16 bit r/o Port 0 IRQ (88E1111 only) */ + PHY_MARV_LED_CTRL = 0x18,/* 16 bit r/w LED Control Reg */ + PHY_MARV_LED_OVER = 0x19,/* 16 bit r/w Manual LED Override Reg */ + PHY_MARV_EXT_CTRL_2 = 0x1a,/* 16 bit r/w Ext. PHY Specific Ctrl 2 */ + PHY_MARV_EXT_P_STAT = 0x1b,/* 16 bit r/w Ext. PHY Spec. Stat Reg */ + PHY_MARV_CABLE_DIAG = 0x1c,/* 16 bit r/o Cable Diagnostic Reg */ + PHY_MARV_PAGE_ADDR = 0x1d,/* 16 bit r/w Extended Page Address Reg */ + PHY_MARV_PAGE_DATA = 0x1e,/* 16 bit r/w Extended Page Data Reg */ + +/* for 10/100 Fast Ethernet PHY (88E3082 only) */ + PHY_MARV_FE_LED_PAR = 0x16,/* 16 bit r/w LED Parallel Select Reg. */ + PHY_MARV_FE_LED_SER = 0x17,/* 16 bit r/w LED Stream Select S. LED */ + PHY_MARV_FE_VCT_TX = 0x1a,/* 16 bit r/w VCT Reg. for TXP/N Pins */ + PHY_MARV_FE_VCT_RX = 0x1b,/* 16 bit r/o VCT Reg. for RXP/N Pins */ + PHY_MARV_FE_SPEC_2 = 0x1c,/* 16 bit r/w Specific Control Reg. 2 */ +}; + +enum { + PHY_CT_RESET = 1<<15, /* Bit 15: (sc) clear all PHY related regs */ + PHY_CT_LOOP = 1<<14, /* Bit 14: enable Loopback over PHY */ + PHY_CT_SPS_LSB = 1<<13, /* Bit 13: Speed select, lower bit */ + PHY_CT_ANE = 1<<12, /* Bit 12: Auto-Negotiation Enabled */ + PHY_CT_PDOWN = 1<<11, /* Bit 11: Power Down Mode */ + PHY_CT_ISOL = 1<<10, /* Bit 10: Isolate Mode */ + PHY_CT_RE_CFG = 1<<9, /* Bit 9: (sc) Restart Auto-Negotiation */ + PHY_CT_DUP_MD = 1<<8, /* Bit 8: Duplex Mode */ + PHY_CT_COL_TST = 1<<7, /* Bit 7: Collision Test enabled */ + PHY_CT_SPS_MSB = 1<<6, /* Bit 6: Speed select, upper bit */ +}; + +enum { + PHY_CT_SP1000 = PHY_CT_SPS_MSB, /* enable speed of 1000 Mbps */ + PHY_CT_SP100 = PHY_CT_SPS_LSB, /* enable speed of 100 Mbps */ + PHY_CT_SP10 = 0, /* enable speed of 10 Mbps */ +}; + +enum { + PHY_ST_EXT_ST = 1<<8, /* Bit 8: Extended Status Present */ + + PHY_ST_PRE_SUP = 1<<6, /* Bit 6: Preamble Suppression */ + PHY_ST_AN_OVER = 1<<5, /* Bit 5: Auto-Negotiation Over */ + PHY_ST_REM_FLT = 1<<4, /* Bit 4: Remote Fault Condition Occurred */ + PHY_ST_AN_CAP = 1<<3, /* Bit 3: Auto-Negotiation Capability */ + PHY_ST_LSYNC = 1<<2, /* Bit 2: Link Synchronized */ + PHY_ST_JAB_DET = 1<<1, /* Bit 1: Jabber Detected */ + PHY_ST_EXT_REG = 1<<0, /* Bit 0: Extended Register available */ +}; + +enum { + PHY_I1_OUI_MSK = 0x3f<<10, /* Bit 15..10: Organization Unique ID */ + PHY_I1_MOD_NUM = 0x3f<<4, /* Bit 9.. 4: Model Number */ + PHY_I1_REV_MSK = 0xf, /* Bit 3.. 0: Revision Number */ +}; + +/* different Broadcom PHY Ids */ +enum { + PHY_BCOM_ID1_A1 = 0x6041, + PHY_BCOM_ID1_B2 = 0x6043, + PHY_BCOM_ID1_C0 = 0x6044, + PHY_BCOM_ID1_C5 = 0x6047, +}; + +/* different Marvell PHY Ids */ +enum { + PHY_MARV_ID0_VAL= 0x0141, /* Marvell Unique Identifier */ + PHY_MARV_ID1_B0 = 0x0C23, /* Yukon (PHY 88E1011) */ + PHY_MARV_ID1_B2 = 0x0C25, /* Yukon-Plus (PHY 88E1011) */ + PHY_MARV_ID1_C2 = 0x0CC2, /* Yukon-EC (PHY 88E1111) */ + PHY_MARV_ID1_Y2 = 0x0C91, /* Yukon-2 (PHY 88E1112) */ +}; + +/* Advertisement register bits */ +enum { + PHY_AN_NXT_PG = 1<<15, /* Bit 15: Request Next Page */ + PHY_AN_ACK = 1<<14, /* Bit 14: (ro) Acknowledge Received */ + PHY_AN_RF = 1<<13, /* Bit 13: Remote Fault Bits */ + + PHY_AN_PAUSE_ASYM = 1<<11,/* Bit 11: Try for asymmetric */ + PHY_AN_PAUSE_CAP = 1<<10, /* Bit 10: Try for pause */ + PHY_AN_100BASE4 = 1<<9, /* Bit 9: Try for 100mbps 4k packets */ + PHY_AN_100FULL = 1<<8, /* Bit 8: Try for 100mbps full-duplex */ + PHY_AN_100HALF = 1<<7, /* Bit 7: Try for 100mbps half-duplex */ + PHY_AN_10FULL = 1<<6, /* Bit 6: Try for 10mbps full-duplex */ + PHY_AN_10HALF = 1<<5, /* Bit 5: Try for 10mbps half-duplex */ + PHY_AN_CSMA = 1<<0, /* Bit 0: Only selector supported */ + PHY_AN_SEL = 0x1f, /* Bit 4..0: Selector Field, 00001=Ethernet*/ + PHY_AN_FULL = PHY_AN_100FULL | PHY_AN_10FULL | PHY_AN_CSMA, + PHY_AN_ALL = PHY_AN_10HALF | PHY_AN_10FULL | + PHY_AN_100HALF | PHY_AN_100FULL, +}; + +/* Xmac Specific */ +enum { + PHY_X_AN_NXT_PG = 1<<15, /* Bit 15: Request Next Page */ + PHY_X_AN_ACK = 1<<14, /* Bit 14: (ro) Acknowledge Received */ + PHY_X_AN_RFB = 3<<12,/* Bit 13..12: Remote Fault Bits */ + + PHY_X_AN_PAUSE = 3<<7,/* Bit 8.. 7: Pause Bits */ + PHY_X_AN_HD = 1<<6, /* Bit 6: Half Duplex */ + PHY_X_AN_FD = 1<<5, /* Bit 5: Full Duplex */ +}; + +/* Pause Bits (PHY_X_AN_PAUSE and PHY_X_RS_PAUSE) encoding */ +enum { + PHY_X_P_NO_PAUSE= 0<<7,/* Bit 8..7: no Pause Mode */ + PHY_X_P_SYM_MD = 1<<7, /* Bit 8..7: symmetric Pause Mode */ + PHY_X_P_ASYM_MD = 2<<7,/* Bit 8..7: asymmetric Pause Mode */ + PHY_X_P_BOTH_MD = 3<<7,/* Bit 8..7: both Pause Mode */ +}; + + +/***** PHY_XMAC_EXT_STAT 16 bit r/w Extended Status Register *****/ +enum { + PHY_X_EX_FD = 1<<15, /* Bit 15: Device Supports Full Duplex */ + PHY_X_EX_HD = 1<<14, /* Bit 14: Device Supports Half Duplex */ +}; + +/***** PHY_XMAC_RES_ABI 16 bit r/o PHY Resolved Ability *****/ +enum { + PHY_X_RS_PAUSE = 3<<7, /* Bit 8..7: selected Pause Mode */ + PHY_X_RS_HD = 1<<6, /* Bit 6: Half Duplex Mode selected */ + PHY_X_RS_FD = 1<<5, /* Bit 5: Full Duplex Mode selected */ + PHY_X_RS_ABLMIS = 1<<4, /* Bit 4: duplex or pause cap mismatch */ + PHY_X_RS_PAUMIS = 1<<3, /* Bit 3: pause capability mismatch */ +}; + +/* Remote Fault Bits (PHY_X_AN_RFB) encoding */ +enum { + X_RFB_OK = 0<<12,/* Bit 13..12 No errors, Link OK */ + X_RFB_LF = 1<<12,/* Bit 13..12 Link Failure */ + X_RFB_OFF = 2<<12,/* Bit 13..12 Offline */ + X_RFB_AN_ERR = 3<<12,/* Bit 13..12 Auto-Negotiation Error */ +}; + +/* Broadcom-Specific */ +/***** PHY_BCOM_1000T_CTRL 16 bit r/w 1000Base-T Control Reg *****/ +enum { + PHY_B_1000C_TEST = 7<<13,/* Bit 15..13: Test Modes */ + PHY_B_1000C_MSE = 1<<12, /* Bit 12: Master/Slave Enable */ + PHY_B_1000C_MSC = 1<<11, /* Bit 11: M/S Configuration */ + PHY_B_1000C_RD = 1<<10, /* Bit 10: Repeater/DTE */ + PHY_B_1000C_AFD = 1<<9, /* Bit 9: Advertise Full Duplex */ + PHY_B_1000C_AHD = 1<<8, /* Bit 8: Advertise Half Duplex */ +}; + +/***** PHY_BCOM_1000T_STAT 16 bit r/o 1000Base-T Status Reg *****/ +/***** PHY_MARV_1000T_STAT 16 bit r/o 1000Base-T Status Reg *****/ +enum { + PHY_B_1000S_MSF = 1<<15, /* Bit 15: Master/Slave Fault */ + PHY_B_1000S_MSR = 1<<14, /* Bit 14: Master/Slave Result */ + PHY_B_1000S_LRS = 1<<13, /* Bit 13: Local Receiver Status */ + PHY_B_1000S_RRS = 1<<12, /* Bit 12: Remote Receiver Status */ + PHY_B_1000S_LP_FD = 1<<11, /* Bit 11: Link Partner can FD */ + PHY_B_1000S_LP_HD = 1<<10, /* Bit 10: Link Partner can HD */ + /* Bit 9..8: reserved */ + PHY_B_1000S_IEC = 0xff, /* Bit 7..0: Idle Error Count */ +}; + +/***** PHY_BCOM_EXT_STAT 16 bit r/o Extended Status Register *****/ +enum { + PHY_B_ES_X_FD_CAP = 1<<15, /* Bit 15: 1000Base-X FD capable */ + PHY_B_ES_X_HD_CAP = 1<<14, /* Bit 14: 1000Base-X HD capable */ + PHY_B_ES_T_FD_CAP = 1<<13, /* Bit 13: 1000Base-T FD capable */ + PHY_B_ES_T_HD_CAP = 1<<12, /* Bit 12: 1000Base-T HD capable */ +}; + +/***** PHY_BCOM_P_EXT_CTRL 16 bit r/w PHY Extended Control Reg *****/ +enum { + PHY_B_PEC_MAC_PHY = 1<<15, /* Bit 15: 10BIT/GMI-Interface */ + PHY_B_PEC_DIS_CROSS = 1<<14, /* Bit 14: Disable MDI Crossover */ + PHY_B_PEC_TX_DIS = 1<<13, /* Bit 13: Tx output Disabled */ + PHY_B_PEC_INT_DIS = 1<<12, /* Bit 12: Interrupts Disabled */ + PHY_B_PEC_F_INT = 1<<11, /* Bit 11: Force Interrupt */ + PHY_B_PEC_BY_45 = 1<<10, /* Bit 10: Bypass 4B5B-Decoder */ + PHY_B_PEC_BY_SCR = 1<<9, /* Bit 9: Bypass Scrambler */ + PHY_B_PEC_BY_MLT3 = 1<<8, /* Bit 8: Bypass MLT3 Encoder */ + PHY_B_PEC_BY_RXA = 1<<7, /* Bit 7: Bypass Rx Alignm. */ + PHY_B_PEC_RES_SCR = 1<<6, /* Bit 6: Reset Scrambler */ + PHY_B_PEC_EN_LTR = 1<<5, /* Bit 5: Ena LED Traffic Mode */ + PHY_B_PEC_LED_ON = 1<<4, /* Bit 4: Force LED's on */ + PHY_B_PEC_LED_OFF = 1<<3, /* Bit 3: Force LED's off */ + PHY_B_PEC_EX_IPG = 1<<2, /* Bit 2: Extend Tx IPG Mode */ + PHY_B_PEC_3_LED = 1<<1, /* Bit 1: Three Link LED mode */ + PHY_B_PEC_HIGH_LA = 1<<0, /* Bit 0: GMII FIFO Elasticy */ +}; + +/***** PHY_BCOM_P_EXT_STAT 16 bit r/o PHY Extended Status Reg *****/ +enum { + PHY_B_PES_CROSS_STAT = 1<<13, /* Bit 13: MDI Crossover Status */ + PHY_B_PES_INT_STAT = 1<<12, /* Bit 12: Interrupt Status */ + PHY_B_PES_RRS = 1<<11, /* Bit 11: Remote Receiver Stat. */ + PHY_B_PES_LRS = 1<<10, /* Bit 10: Local Receiver Stat. */ + PHY_B_PES_LOCKED = 1<<9, /* Bit 9: Locked */ + PHY_B_PES_LS = 1<<8, /* Bit 8: Link Status */ + PHY_B_PES_RF = 1<<7, /* Bit 7: Remote Fault */ + PHY_B_PES_CE_ER = 1<<6, /* Bit 6: Carrier Ext Error */ + PHY_B_PES_BAD_SSD = 1<<5, /* Bit 5: Bad SSD */ + PHY_B_PES_BAD_ESD = 1<<4, /* Bit 4: Bad ESD */ + PHY_B_PES_RX_ER = 1<<3, /* Bit 3: Receive Error */ + PHY_B_PES_TX_ER = 1<<2, /* Bit 2: Transmit Error */ + PHY_B_PES_LOCK_ER = 1<<1, /* Bit 1: Lock Error */ + PHY_B_PES_MLT3_ER = 1<<0, /* Bit 0: MLT3 code Error */ +}; + +/* PHY_BCOM_AUNE_ADV 16 bit r/w Auto-Negotiation Advertisement *****/ +/* PHY_BCOM_AUNE_LP 16 bit r/o Link Partner Ability Reg *****/ +enum { + PHY_B_AN_RF = 1<<13, /* Bit 13: Remote Fault */ + + PHY_B_AN_ASP = 1<<11, /* Bit 11: Asymmetric Pause */ + PHY_B_AN_PC = 1<<10, /* Bit 10: Pause Capable */ +}; + + +/***** PHY_BCOM_FC_CTR 16 bit r/w False Carrier Counter *****/ +enum { + PHY_B_FC_CTR = 0xff, /* Bit 7..0: False Carrier Counter */ + +/***** PHY_BCOM_RNO_CTR 16 bit r/w Receive NOT_OK Counter *****/ + PHY_B_RC_LOC_MSK = 0xff00, /* Bit 15..8: Local Rx NOT_OK cnt */ + PHY_B_RC_REM_MSK = 0x00ff, /* Bit 7..0: Remote Rx NOT_OK cnt */ + +/***** PHY_BCOM_AUX_CTRL 16 bit r/w Auxiliary Control Reg *****/ + PHY_B_AC_L_SQE = 1<<15, /* Bit 15: Low Squelch */ + PHY_B_AC_LONG_PACK = 1<<14, /* Bit 14: Rx Long Packets */ + PHY_B_AC_ER_CTRL = 3<<12,/* Bit 13..12: Edgerate Control */ + /* Bit 11: reserved */ + PHY_B_AC_TX_TST = 1<<10, /* Bit 10: Tx test bit, always 1 */ + /* Bit 9.. 8: reserved */ + PHY_B_AC_DIS_PRF = 1<<7, /* Bit 7: dis part resp filter */ + /* Bit 6: reserved */ + PHY_B_AC_DIS_PM = 1<<5, /* Bit 5: dis power management */ + /* Bit 4: reserved */ + PHY_B_AC_DIAG = 1<<3, /* Bit 3: Diagnostic Mode */ +}; + +/***** PHY_BCOM_AUX_STAT 16 bit r/o Auxiliary Status Reg *****/ +enum { + PHY_B_AS_AN_C = 1<<15, /* Bit 15: AutoNeg complete */ + PHY_B_AS_AN_CA = 1<<14, /* Bit 14: AN Complete Ack */ + PHY_B_AS_ANACK_D = 1<<13, /* Bit 13: AN Ack Detect */ + PHY_B_AS_ANAB_D = 1<<12, /* Bit 12: AN Ability Detect */ + PHY_B_AS_NPW = 1<<11, /* Bit 11: AN Next Page Wait */ + PHY_B_AS_AN_RES_MSK = 7<<8,/* Bit 10..8: AN HDC */ + PHY_B_AS_PDF = 1<<7, /* Bit 7: Parallel Detect. Fault */ + PHY_B_AS_RF = 1<<6, /* Bit 6: Remote Fault */ + PHY_B_AS_ANP_R = 1<<5, /* Bit 5: AN Page Received */ + PHY_B_AS_LP_ANAB = 1<<4, /* Bit 4: LP AN Ability */ + PHY_B_AS_LP_NPAB = 1<<3, /* Bit 3: LP Next Page Ability */ + PHY_B_AS_LS = 1<<2, /* Bit 2: Link Status */ + PHY_B_AS_PRR = 1<<1, /* Bit 1: Pause Resolution-Rx */ + PHY_B_AS_PRT = 1<<0, /* Bit 0: Pause Resolution-Tx */ +}; +#define PHY_B_AS_PAUSE_MSK (PHY_B_AS_PRR | PHY_B_AS_PRT) + +/***** PHY_BCOM_INT_STAT 16 bit r/o Interrupt Status Reg *****/ +/***** PHY_BCOM_INT_MASK 16 bit r/w Interrupt Mask Reg *****/ +enum { + PHY_B_IS_PSE = 1<<14, /* Bit 14: Pair Swap Error */ + PHY_B_IS_MDXI_SC = 1<<13, /* Bit 13: MDIX Status Change */ + PHY_B_IS_HCT = 1<<12, /* Bit 12: counter above 32k */ + PHY_B_IS_LCT = 1<<11, /* Bit 11: counter above 128 */ + PHY_B_IS_AN_PR = 1<<10, /* Bit 10: Page Received */ + PHY_B_IS_NO_HDCL = 1<<9, /* Bit 9: No HCD Link */ + PHY_B_IS_NO_HDC = 1<<8, /* Bit 8: No HCD */ + PHY_B_IS_NEG_USHDC = 1<<7, /* Bit 7: Negotiated Unsup. HCD */ + PHY_B_IS_SCR_S_ER = 1<<6, /* Bit 6: Scrambler Sync Error */ + PHY_B_IS_RRS_CHANGE = 1<<5, /* Bit 5: Remote Rx Stat Change */ + PHY_B_IS_LRS_CHANGE = 1<<4, /* Bit 4: Local Rx Stat Change */ + PHY_B_IS_DUP_CHANGE = 1<<3, /* Bit 3: Duplex Mode Change */ + PHY_B_IS_LSP_CHANGE = 1<<2, /* Bit 2: Link Speed Change */ + PHY_B_IS_LST_CHANGE = 1<<1, /* Bit 1: Link Status Changed */ + PHY_B_IS_CRC_ER = 1<<0, /* Bit 0: CRC Error */ +}; +#define PHY_B_DEF_MSK \ + (~(PHY_B_IS_PSE | PHY_B_IS_AN_PR | PHY_B_IS_DUP_CHANGE | \ + PHY_B_IS_LSP_CHANGE | PHY_B_IS_LST_CHANGE)) + +/* Pause Bits (PHY_B_AN_ASP and PHY_B_AN_PC) encoding */ +enum { + PHY_B_P_NO_PAUSE = 0<<10,/* Bit 11..10: no Pause Mode */ + PHY_B_P_SYM_MD = 1<<10, /* Bit 11..10: symmetric Pause Mode */ + PHY_B_P_ASYM_MD = 2<<10,/* Bit 11..10: asymmetric Pause Mode */ + PHY_B_P_BOTH_MD = 3<<10,/* Bit 11..10: both Pause Mode */ +}; +/* + * Resolved Duplex mode and Capabilities (Aux Status Summary Reg) + */ +enum { + PHY_B_RES_1000FD = 7<<8,/* Bit 10..8: 1000Base-T Full Dup. */ + PHY_B_RES_1000HD = 6<<8,/* Bit 10..8: 1000Base-T Half Dup. */ +}; + +/** Marvell-Specific */ +enum { + PHY_M_AN_NXT_PG = 1<<15, /* Request Next Page */ + PHY_M_AN_ACK = 1<<14, /* (ro) Acknowledge Received */ + PHY_M_AN_RF = 1<<13, /* Remote Fault */ + + PHY_M_AN_ASP = 1<<11, /* Asymmetric Pause */ + PHY_M_AN_PC = 1<<10, /* MAC Pause implemented */ + PHY_M_AN_100_T4 = 1<<9, /* Not cap. 100Base-T4 (always 0) */ + PHY_M_AN_100_FD = 1<<8, /* Advertise 100Base-TX Full Duplex */ + PHY_M_AN_100_HD = 1<<7, /* Advertise 100Base-TX Half Duplex */ + PHY_M_AN_10_FD = 1<<6, /* Advertise 10Base-TX Full Duplex */ + PHY_M_AN_10_HD = 1<<5, /* Advertise 10Base-TX Half Duplex */ + PHY_M_AN_SEL_MSK =0x1f<<4, /* Bit 4.. 0: Selector Field Mask */ +}; + +/* special defines for FIBER (88E1011S only) */ +enum { + PHY_M_AN_ASP_X = 1<<8, /* Asymmetric Pause */ + PHY_M_AN_PC_X = 1<<7, /* MAC Pause implemented */ + PHY_M_AN_1000X_AHD = 1<<6, /* Advertise 10000Base-X Half Duplex */ + PHY_M_AN_1000X_AFD = 1<<5, /* Advertise 10000Base-X Full Duplex */ +}; + +/* Pause Bits (PHY_M_AN_ASP_X and PHY_M_AN_PC_X) encoding */ +enum { + PHY_M_P_NO_PAUSE_X = 0<<7,/* Bit 8.. 7: no Pause Mode */ + PHY_M_P_SYM_MD_X = 1<<7, /* Bit 8.. 7: symmetric Pause Mode */ + PHY_M_P_ASYM_MD_X = 2<<7,/* Bit 8.. 7: asymmetric Pause Mode */ + PHY_M_P_BOTH_MD_X = 3<<7,/* Bit 8.. 7: both Pause Mode */ +}; + +/***** PHY_MARV_1000T_CTRL 16 bit r/w 1000Base-T Control Reg *****/ +enum { + PHY_M_1000C_TEST= 7<<13,/* Bit 15..13: Test Modes */ + PHY_M_1000C_MSE = 1<<12, /* Manual Master/Slave Enable */ + PHY_M_1000C_MSC = 1<<11, /* M/S Configuration (1=Master) */ + PHY_M_1000C_MPD = 1<<10, /* Multi-Port Device */ + PHY_M_1000C_AFD = 1<<9, /* Advertise Full Duplex */ + PHY_M_1000C_AHD = 1<<8, /* Advertise Half Duplex */ +}; + +/***** PHY_MARV_PHY_CTRL 16 bit r/w PHY Specific Ctrl Reg *****/ +enum { + PHY_M_PC_TX_FFD_MSK = 3<<14,/* Bit 15..14: Tx FIFO Depth Mask */ + PHY_M_PC_RX_FFD_MSK = 3<<12,/* Bit 13..12: Rx FIFO Depth Mask */ + PHY_M_PC_ASS_CRS_TX = 1<<11, /* Assert CRS on Transmit */ + PHY_M_PC_FL_GOOD = 1<<10, /* Force Link Good */ + PHY_M_PC_EN_DET_MSK = 3<<8,/* Bit 9.. 8: Energy Detect Mask */ + PHY_M_PC_ENA_EXT_D = 1<<7, /* Enable Ext. Distance (10BT) */ + PHY_M_PC_MDIX_MSK = 3<<5,/* Bit 6.. 5: MDI/MDIX Config. Mask */ + PHY_M_PC_DIS_125CLK = 1<<4, /* Disable 125 CLK */ + PHY_M_PC_MAC_POW_UP = 1<<3, /* MAC Power up */ + PHY_M_PC_SQE_T_ENA = 1<<2, /* SQE Test Enabled */ + PHY_M_PC_POL_R_DIS = 1<<1, /* Polarity Reversal Disabled */ + PHY_M_PC_DIS_JABBER = 1<<0, /* Disable Jabber */ +}; + +enum { + PHY_M_PC_EN_DET = 2<<8, /* Energy Detect (Mode 1) */ + PHY_M_PC_EN_DET_PLUS = 3<<8, /* Energy Detect Plus (Mode 2) */ +}; + +enum { + PHY_M_PC_MAN_MDI = 0, /* 00 = Manual MDI configuration */ + PHY_M_PC_MAN_MDIX = 1, /* 01 = Manual MDIX configuration */ + PHY_M_PC_ENA_AUTO = 3, /* 11 = Enable Automatic Crossover */ +}; + +/* for 10/100 Fast Ethernet PHY (88E3082 only) */ +enum { + PHY_M_PC_ENA_DTE_DT = 1<<15, /* Enable Data Terminal Equ. (DTE) Detect */ + PHY_M_PC_ENA_ENE_DT = 1<<14, /* Enable Energy Detect (sense & pulse) */ + PHY_M_PC_DIS_NLP_CK = 1<<13, /* Disable Normal Link Puls (NLP) Check */ + PHY_M_PC_ENA_LIP_NP = 1<<12, /* Enable Link Partner Next Page Reg. */ + PHY_M_PC_DIS_NLP_GN = 1<<11, /* Disable Normal Link Puls Generation */ + + PHY_M_PC_DIS_SCRAMB = 1<<9, /* Disable Scrambler */ + PHY_M_PC_DIS_FEFI = 1<<8, /* Disable Far End Fault Indic. (FEFI) */ + + PHY_M_PC_SH_TP_SEL = 1<<6, /* Shielded Twisted Pair Select */ + PHY_M_PC_RX_FD_MSK = 3<<2,/* Bit 3.. 2: Rx FIFO Depth Mask */ +}; + +/***** PHY_MARV_PHY_STAT 16 bit r/o PHY Specific Status Reg *****/ +enum { + PHY_M_PS_SPEED_MSK = 3<<14, /* Bit 15..14: Speed Mask */ + PHY_M_PS_SPEED_1000 = 1<<15, /* 10 = 1000 Mbps */ + PHY_M_PS_SPEED_100 = 1<<14, /* 01 = 100 Mbps */ + PHY_M_PS_SPEED_10 = 0, /* 00 = 10 Mbps */ + PHY_M_PS_FULL_DUP = 1<<13, /* Full Duplex */ + PHY_M_PS_PAGE_REC = 1<<12, /* Page Received */ + PHY_M_PS_SPDUP_RES = 1<<11, /* Speed & Duplex Resolved */ + PHY_M_PS_LINK_UP = 1<<10, /* Link Up */ + PHY_M_PS_CABLE_MSK = 7<<7, /* Bit 9.. 7: Cable Length Mask */ + PHY_M_PS_MDI_X_STAT = 1<<6, /* MDI Crossover Stat (1=MDIX) */ + PHY_M_PS_DOWNS_STAT = 1<<5, /* Downshift Status (1=downsh.) */ + PHY_M_PS_ENDET_STAT = 1<<4, /* Energy Detect Status (1=act) */ + PHY_M_PS_TX_P_EN = 1<<3, /* Tx Pause Enabled */ + PHY_M_PS_RX_P_EN = 1<<2, /* Rx Pause Enabled */ + PHY_M_PS_POL_REV = 1<<1, /* Polarity Reversed */ + PHY_M_PS_JABBER = 1<<0, /* Jabber */ +}; + +#define PHY_M_PS_PAUSE_MSK (PHY_M_PS_TX_P_EN | PHY_M_PS_RX_P_EN) + +/* for 10/100 Fast Ethernet PHY (88E3082 only) */ +enum { + PHY_M_PS_DTE_DETECT = 1<<15, /* Data Terminal Equipment (DTE) Detected */ + PHY_M_PS_RES_SPEED = 1<<14, /* Resolved Speed (1=100 Mbps, 0=10 Mbps */ +}; + +enum { + PHY_M_IS_AN_ERROR = 1<<15, /* Auto-Negotiation Error */ + PHY_M_IS_LSP_CHANGE = 1<<14, /* Link Speed Changed */ + PHY_M_IS_DUP_CHANGE = 1<<13, /* Duplex Mode Changed */ + PHY_M_IS_AN_PR = 1<<12, /* Page Received */ + PHY_M_IS_AN_COMPL = 1<<11, /* Auto-Negotiation Completed */ + PHY_M_IS_LST_CHANGE = 1<<10, /* Link Status Changed */ + PHY_M_IS_SYMB_ERROR = 1<<9, /* Symbol Error */ + PHY_M_IS_FALSE_CARR = 1<<8, /* False Carrier */ + PHY_M_IS_FIFO_ERROR = 1<<7, /* FIFO Overflow/Underrun Error */ + PHY_M_IS_MDI_CHANGE = 1<<6, /* MDI Crossover Changed */ + PHY_M_IS_DOWNSH_DET = 1<<5, /* Downshift Detected */ + PHY_M_IS_END_CHANGE = 1<<4, /* Energy Detect Changed */ + + PHY_M_IS_DTE_CHANGE = 1<<2, /* DTE Power Det. Status Changed */ + PHY_M_IS_POL_CHANGE = 1<<1, /* Polarity Changed */ + PHY_M_IS_JABBER = 1<<0, /* Jabber */ + + PHY_M_IS_DEF_MSK = PHY_M_IS_AN_ERROR | PHY_M_IS_LSP_CHANGE | + PHY_M_IS_LST_CHANGE | PHY_M_IS_FIFO_ERROR, + + PHY_M_IS_AN_MSK = PHY_M_IS_AN_ERROR | PHY_M_IS_AN_COMPL, +}; + +/***** PHY_MARV_EXT_CTRL 16 bit r/w Ext. PHY Specific Ctrl *****/ +enum { + PHY_M_EC_ENA_BC_EXT = 1<<15, /* Enable Block Carr. Ext. (88E1111 only) */ + PHY_M_EC_ENA_LIN_LB = 1<<14, /* Enable Line Loopback (88E1111 only) */ + + PHY_M_EC_DIS_LINK_P = 1<<12, /* Disable Link Pulses (88E1111 only) */ + PHY_M_EC_M_DSC_MSK = 3<<10, /* Bit 11..10: Master Downshift Counter */ + /* (88E1011 only) */ + PHY_M_EC_S_DSC_MSK = 3<<8, /* Bit 9.. 8: Slave Downshift Counter */ + /* (88E1011 only) */ + PHY_M_EC_M_DSC_MSK2 = 7<<9, /* Bit 11.. 9: Master Downshift Counter */ + /* (88E1111 only) */ + PHY_M_EC_DOWN_S_ENA = 1<<8, /* Downshift Enable (88E1111 only) */ + /* !!! Errata in spec. (1 = disable) */ + PHY_M_EC_RX_TIM_CT = 1<<7, /* RGMII Rx Timing Control*/ + PHY_M_EC_MAC_S_MSK = 7<<4, /* Bit 6.. 4: Def. MAC interface speed */ + PHY_M_EC_FIB_AN_ENA = 1<<3, /* Fiber Auto-Neg. Enable (88E1011S only) */ + PHY_M_EC_DTE_D_ENA = 1<<2, /* DTE Detect Enable (88E1111 only) */ + PHY_M_EC_TX_TIM_CT = 1<<1, /* RGMII Tx Timing Control */ + PHY_M_EC_TRANS_DIS = 1<<0, /* Transmitter Disable (88E1111 only) */}; + +#define PHY_M_EC_M_DSC(x) ((u16)(x)<<10) /* 00=1x; 01=2x; 10=3x; 11=4x */ +#define PHY_M_EC_S_DSC(x) ((u16)(x)<<8) /* 00=dis; 01=1x; 10=2x; 11=3x */ +#define PHY_M_EC_MAC_S(x) ((u16)(x)<<4) /* 01X=0; 110=2.5; 111=25 (MHz) */ + +#define PHY_M_EC_M_DSC_2(x) ((u16)(x)<<9) /* 000=1x; 001=2x; 010=3x; 011=4x */ + /* 100=5x; 101=6x; 110=7x; 111=8x */ +enum { + MAC_TX_CLK_0_MHZ = 2, + MAC_TX_CLK_2_5_MHZ = 6, + MAC_TX_CLK_25_MHZ = 7, +}; + +/***** PHY_MARV_LED_CTRL 16 bit r/w LED Control Reg *****/ +enum { + PHY_M_LEDC_DIS_LED = 1<<15, /* Disable LED */ + PHY_M_LEDC_PULS_MSK = 7<<12,/* Bit 14..12: Pulse Stretch Mask */ + PHY_M_LEDC_F_INT = 1<<11, /* Force Interrupt */ + PHY_M_LEDC_BL_R_MSK = 7<<8,/* Bit 10.. 8: Blink Rate Mask */ + PHY_M_LEDC_DP_C_LSB = 1<<7, /* Duplex Control (LSB, 88E1111 only) */ + PHY_M_LEDC_TX_C_LSB = 1<<6, /* Tx Control (LSB, 88E1111 only) */ + PHY_M_LEDC_LK_C_MSK = 7<<3,/* Bit 5.. 3: Link Control Mask */ + /* (88E1111 only) */ +}; +#define PHY_M_LED_PULS_DUR(x) (((u16)(x)<<12) & PHY_M_LEDC_PULS_MSK) +#define PHY_M_LED_BLINK_RT(x) (((u16)(x)<<8) & PHY_M_LEDC_BL_R_MSK) + +enum { + PHY_M_LEDC_LINK_MSK = 3<<3, /* Bit 4.. 3: Link Control Mask */ + /* (88E1011 only) */ + PHY_M_LEDC_DP_CTRL = 1<<2, /* Duplex Control */ + PHY_M_LEDC_DP_C_MSB = 1<<2, /* Duplex Control (MSB, 88E1111 only) */ + PHY_M_LEDC_RX_CTRL = 1<<1, /* Rx Activity / Link */ + PHY_M_LEDC_TX_CTRL = 1<<0, /* Tx Activity / Link */ + PHY_M_LEDC_TX_C_MSB = 1<<0, /* Tx Control (MSB, 88E1111 only) */ +}; + +enum { + PULS_NO_STR = 0, /* no pulse stretching */ + PULS_21MS = 1, /* 21 ms to 42 ms */ + PULS_42MS = 2, /* 42 ms to 84 ms */ + PULS_84MS = 3, /* 84 ms to 170 ms */ + PULS_170MS = 4, /* 170 ms to 340 ms */ + PULS_340MS = 5, /* 340 ms to 670 ms */ + PULS_670MS = 6, /* 670 ms to 1.3 s */ + PULS_1300MS = 7, /* 1.3 s to 2.7 s */ +}; + + +enum { + BLINK_42MS = 0, /* 42 ms */ + BLINK_84MS = 1, /* 84 ms */ + BLINK_170MS = 2, /* 170 ms */ + BLINK_340MS = 3, /* 340 ms */ + BLINK_670MS = 4, /* 670 ms */ +}; + +/***** PHY_MARV_LED_OVER 16 bit r/w Manual LED Override Reg *****/ +#define PHY_M_LED_MO_SGMII(x) ((x)<<14) /* Bit 15..14: SGMII AN Timer */ + /* Bit 13..12: reserved */ +#define PHY_M_LED_MO_DUP(x) ((x)<<10) /* Bit 11..10: Duplex */ +#define PHY_M_LED_MO_10(x) ((x)<<8) /* Bit 9.. 8: Link 10 */ +#define PHY_M_LED_MO_100(x) ((x)<<6) /* Bit 7.. 6: Link 100 */ +#define PHY_M_LED_MO_1000(x) ((x)<<4) /* Bit 5.. 4: Link 1000 */ +#define PHY_M_LED_MO_RX(x) ((x)<<2) /* Bit 3.. 2: Rx */ +#define PHY_M_LED_MO_TX(x) ((x)<<0) /* Bit 1.. 0: Tx */ + +enum { + MO_LED_NORM = 0, + MO_LED_BLINK = 1, + MO_LED_OFF = 2, + MO_LED_ON = 3, +}; + +/***** PHY_MARV_EXT_CTRL_2 16 bit r/w Ext. PHY Specific Ctrl 2 *****/ +enum { + PHY_M_EC2_FI_IMPED = 1<<6, /* Fiber Input Impedance */ + PHY_M_EC2_FO_IMPED = 1<<5, /* Fiber Output Impedance */ + PHY_M_EC2_FO_M_CLK = 1<<4, /* Fiber Mode Clock Enable */ + PHY_M_EC2_FO_BOOST = 1<<3, /* Fiber Output Boost */ + PHY_M_EC2_FO_AM_MSK = 7, /* Bit 2.. 0: Fiber Output Amplitude */ +}; + +/***** PHY_MARV_EXT_P_STAT 16 bit r/w Ext. PHY Specific Status *****/ +enum { + PHY_M_FC_AUTO_SEL = 1<<15, /* Fiber/Copper Auto Sel. Dis. */ + PHY_M_FC_AN_REG_ACC = 1<<14, /* Fiber/Copper AN Reg. Access */ + PHY_M_FC_RESOLUTION = 1<<13, /* Fiber/Copper Resolution */ + PHY_M_SER_IF_AN_BP = 1<<12, /* Ser. IF AN Bypass Enable */ + PHY_M_SER_IF_BP_ST = 1<<11, /* Ser. IF AN Bypass Status */ + PHY_M_IRQ_POLARITY = 1<<10, /* IRQ polarity */ + PHY_M_DIS_AUT_MED = 1<<9, /* Disable Aut. Medium Reg. Selection */ + /* (88E1111 only) */ + /* Bit 9.. 4: reserved (88E1011 only) */ + PHY_M_UNDOC1 = 1<<7, /* undocumented bit !! */ + PHY_M_DTE_POW_STAT = 1<<4, /* DTE Power Status (88E1111 only) */ + PHY_M_MODE_MASK = 0xf, /* Bit 3.. 0: copy of HWCFG MODE[3:0] */ +}; + +/***** PHY_MARV_CABLE_DIAG 16 bit r/o Cable Diagnostic Reg *****/ +enum { + PHY_M_CABD_ENA_TEST = 1<<15, /* Enable Test (Page 0) */ + PHY_M_CABD_DIS_WAIT = 1<<15, /* Disable Waiting Period (Page 1) */ + /* (88E1111 only) */ + PHY_M_CABD_STAT_MSK = 3<<13, /* Bit 14..13: Status Mask */ + PHY_M_CABD_AMPL_MSK = 0x1f<<8, /* Bit 12.. 8: Amplitude Mask */ + /* (88E1111 only) */ + PHY_M_CABD_DIST_MSK = 0xff, /* Bit 7.. 0: Distance Mask */ +}; + +/* values for Cable Diagnostic Status (11=fail; 00=OK; 10=open; 01=short) */ +enum { + CABD_STAT_NORMAL= 0, + CABD_STAT_SHORT = 1, + CABD_STAT_OPEN = 2, + CABD_STAT_FAIL = 3, +}; + +/* for 10/100 Fast Ethernet PHY (88E3082 only) */ +/***** PHY_MARV_FE_LED_PAR 16 bit r/w LED Parallel Select Reg. *****/ + /* Bit 15..12: reserved (used internally) */ +enum { + PHY_M_FELP_LED2_MSK = 0xf<<8, /* Bit 11.. 8: LED2 Mask (LINK) */ + PHY_M_FELP_LED1_MSK = 0xf<<4, /* Bit 7.. 4: LED1 Mask (ACT) */ + PHY_M_FELP_LED0_MSK = 0xf, /* Bit 3.. 0: LED0 Mask (SPEED) */ +}; + +#define PHY_M_FELP_LED2_CTRL(x) (((x)<<8) & PHY_M_FELP_LED2_MSK) +#define PHY_M_FELP_LED1_CTRL(x) (((x)<<4) & PHY_M_FELP_LED1_MSK) +#define PHY_M_FELP_LED0_CTRL(x) (((x)<<0) & PHY_M_FELP_LED0_MSK) + +enum { + LED_PAR_CTRL_COLX = 0x00, + LED_PAR_CTRL_ERROR = 0x01, + LED_PAR_CTRL_DUPLEX = 0x02, + LED_PAR_CTRL_DP_COL = 0x03, + LED_PAR_CTRL_SPEED = 0x04, + LED_PAR_CTRL_LINK = 0x05, + LED_PAR_CTRL_TX = 0x06, + LED_PAR_CTRL_RX = 0x07, + LED_PAR_CTRL_ACT = 0x08, + LED_PAR_CTRL_LNK_RX = 0x09, + LED_PAR_CTRL_LNK_AC = 0x0a, + LED_PAR_CTRL_ACT_BL = 0x0b, + LED_PAR_CTRL_TX_BL = 0x0c, + LED_PAR_CTRL_RX_BL = 0x0d, + LED_PAR_CTRL_COL_BL = 0x0e, + LED_PAR_CTRL_INACT = 0x0f +}; + +/*****,PHY_MARV_FE_SPEC_2 16 bit r/w Specific Control Reg. 2 *****/ +enum { + PHY_M_FESC_DIS_WAIT = 1<<2, /* Disable TDR Waiting Period */ + PHY_M_FESC_ENA_MCLK = 1<<1, /* Enable MAC Rx Clock in sleep mode */ + PHY_M_FESC_SEL_CL_A = 1<<0, /* Select Class A driver (100B-TX) */ +}; + + +/***** PHY_MARV_PHY_CTRL (page 3) 16 bit r/w LED Control Reg. *****/ +enum { + PHY_M_LEDC_LOS_MSK = 0xf<<12, /* Bit 15..12: LOS LED Ctrl. Mask */ + PHY_M_LEDC_INIT_MSK = 0xf<<8, /* Bit 11.. 8: INIT LED Ctrl. Mask */ + PHY_M_LEDC_STA1_MSK = 0xf<<4, /* Bit 7.. 4: STAT1 LED Ctrl. Mask */ + PHY_M_LEDC_STA0_MSK = 0xf, /* Bit 3.. 0: STAT0 LED Ctrl. Mask */ +}; + +#define PHY_M_LEDC_LOS_CTRL(x) (((x)<<12) & PHY_M_LEDC_LOS_MSK) +#define PHY_M_LEDC_INIT_CTRL(x) (((x)<<8) & PHY_M_LEDC_INIT_MSK) +#define PHY_M_LEDC_STA1_CTRL(x) (((x)<<4) & PHY_M_LEDC_STA1_MSK) +#define PHY_M_LEDC_STA0_CTRL(x) (((x)<<0) & PHY_M_LEDC_STA0_MSK) + +/* GMAC registers */ +/* Port Registers */ +enum { + GM_GP_STAT = 0x0000, /* 16 bit r/o General Purpose Status */ + GM_GP_CTRL = 0x0004, /* 16 bit r/w General Purpose Control */ + GM_TX_CTRL = 0x0008, /* 16 bit r/w Transmit Control Reg. */ + GM_RX_CTRL = 0x000c, /* 16 bit r/w Receive Control Reg. */ + GM_TX_FLOW_CTRL = 0x0010, /* 16 bit r/w Transmit Flow-Control */ + GM_TX_PARAM = 0x0014, /* 16 bit r/w Transmit Parameter Reg. */ + GM_SERIAL_MODE = 0x0018, /* 16 bit r/w Serial Mode Register */ +/* Source Address Registers */ + GM_SRC_ADDR_1L = 0x001c, /* 16 bit r/w Source Address 1 (low) */ + GM_SRC_ADDR_1M = 0x0020, /* 16 bit r/w Source Address 1 (middle) */ + GM_SRC_ADDR_1H = 0x0024, /* 16 bit r/w Source Address 1 (high) */ + GM_SRC_ADDR_2L = 0x0028, /* 16 bit r/w Source Address 2 (low) */ + GM_SRC_ADDR_2M = 0x002c, /* 16 bit r/w Source Address 2 (middle) */ + GM_SRC_ADDR_2H = 0x0030, /* 16 bit r/w Source Address 2 (high) */ + +/* Multicast Address Hash Registers */ + GM_MC_ADDR_H1 = 0x0034, /* 16 bit r/w Multicast Address Hash 1 */ + GM_MC_ADDR_H2 = 0x0038, /* 16 bit r/w Multicast Address Hash 2 */ + GM_MC_ADDR_H3 = 0x003c, /* 16 bit r/w Multicast Address Hash 3 */ + GM_MC_ADDR_H4 = 0x0040, /* 16 bit r/w Multicast Address Hash 4 */ + +/* Interrupt Source Registers */ + GM_TX_IRQ_SRC = 0x0044, /* 16 bit r/o Tx Overflow IRQ Source */ + GM_RX_IRQ_SRC = 0x0048, /* 16 bit r/o Rx Overflow IRQ Source */ + GM_TR_IRQ_SRC = 0x004c, /* 16 bit r/o Tx/Rx Over. IRQ Source */ + +/* Interrupt Mask Registers */ + GM_TX_IRQ_MSK = 0x0050, /* 16 bit r/w Tx Overflow IRQ Mask */ + GM_RX_IRQ_MSK = 0x0054, /* 16 bit r/w Rx Overflow IRQ Mask */ + GM_TR_IRQ_MSK = 0x0058, /* 16 bit r/w Tx/Rx Over. IRQ Mask */ + +/* Serial Management Interface (SMI) Registers */ + GM_SMI_CTRL = 0x0080, /* 16 bit r/w SMI Control Register */ + GM_SMI_DATA = 0x0084, /* 16 bit r/w SMI Data Register */ + GM_PHY_ADDR = 0x0088, /* 16 bit r/w GPHY Address Register */ +}; + +/* MIB Counters */ +#define GM_MIB_CNT_BASE 0x0100 /* Base Address of MIB Counters */ +#define GM_MIB_CNT_SIZE 44 /* Number of MIB Counters */ + +/* + * MIB Counters base address definitions (low word) - + * use offset 4 for access to high word (32 bit r/o) + */ +enum { + GM_RXF_UC_OK = GM_MIB_CNT_BASE + 0, /* Unicast Frames Received OK */ + GM_RXF_BC_OK = GM_MIB_CNT_BASE + 8, /* Broadcast Frames Received OK */ + GM_RXF_MPAUSE = GM_MIB_CNT_BASE + 16, /* Pause MAC Ctrl Frames Received */ + GM_RXF_MC_OK = GM_MIB_CNT_BASE + 24, /* Multicast Frames Received OK */ + GM_RXF_FCS_ERR = GM_MIB_CNT_BASE + 32, /* Rx Frame Check Seq. Error */ + /* GM_MIB_CNT_BASE + 40: reserved */ + GM_RXO_OK_LO = GM_MIB_CNT_BASE + 48, /* Octets Received OK Low */ + GM_RXO_OK_HI = GM_MIB_CNT_BASE + 56, /* Octets Received OK High */ + GM_RXO_ERR_LO = GM_MIB_CNT_BASE + 64, /* Octets Received Invalid Low */ + GM_RXO_ERR_HI = GM_MIB_CNT_BASE + 72, /* Octets Received Invalid High */ + GM_RXF_SHT = GM_MIB_CNT_BASE + 80, /* Frames <64 Byte Received OK */ + GM_RXE_FRAG = GM_MIB_CNT_BASE + 88, /* Frames <64 Byte Received with FCS Err */ + GM_RXF_64B = GM_MIB_CNT_BASE + 96, /* 64 Byte Rx Frame */ + GM_RXF_127B = GM_MIB_CNT_BASE + 104, /* 65-127 Byte Rx Frame */ + GM_RXF_255B = GM_MIB_CNT_BASE + 112, /* 128-255 Byte Rx Frame */ + GM_RXF_511B = GM_MIB_CNT_BASE + 120, /* 256-511 Byte Rx Frame */ + GM_RXF_1023B = GM_MIB_CNT_BASE + 128, /* 512-1023 Byte Rx Frame */ + GM_RXF_1518B = GM_MIB_CNT_BASE + 136, /* 1024-1518 Byte Rx Frame */ + GM_RXF_MAX_SZ = GM_MIB_CNT_BASE + 144, /* 1519-MaxSize Byte Rx Frame */ + GM_RXF_LNG_ERR = GM_MIB_CNT_BASE + 152, /* Rx Frame too Long Error */ + GM_RXF_JAB_PKT = GM_MIB_CNT_BASE + 160, /* Rx Jabber Packet Frame */ + /* GM_MIB_CNT_BASE + 168: reserved */ + GM_RXE_FIFO_OV = GM_MIB_CNT_BASE + 176, /* Rx FIFO overflow Event */ + /* GM_MIB_CNT_BASE + 184: reserved */ + GM_TXF_UC_OK = GM_MIB_CNT_BASE + 192, /* Unicast Frames Xmitted OK */ + GM_TXF_BC_OK = GM_MIB_CNT_BASE + 200, /* Broadcast Frames Xmitted OK */ + GM_TXF_MPAUSE = GM_MIB_CNT_BASE + 208, /* Pause MAC Ctrl Frames Xmitted */ + GM_TXF_MC_OK = GM_MIB_CNT_BASE + 216, /* Multicast Frames Xmitted OK */ + GM_TXO_OK_LO = GM_MIB_CNT_BASE + 224, /* Octets Transmitted OK Low */ + GM_TXO_OK_HI = GM_MIB_CNT_BASE + 232, /* Octets Transmitted OK High */ + GM_TXF_64B = GM_MIB_CNT_BASE + 240, /* 64 Byte Tx Frame */ + GM_TXF_127B = GM_MIB_CNT_BASE + 248, /* 65-127 Byte Tx Frame */ + GM_TXF_255B = GM_MIB_CNT_BASE + 256, /* 128-255 Byte Tx Frame */ + GM_TXF_511B = GM_MIB_CNT_BASE + 264, /* 256-511 Byte Tx Frame */ + GM_TXF_1023B = GM_MIB_CNT_BASE + 272, /* 512-1023 Byte Tx Frame */ + GM_TXF_1518B = GM_MIB_CNT_BASE + 280, /* 1024-1518 Byte Tx Frame */ + GM_TXF_MAX_SZ = GM_MIB_CNT_BASE + 288, /* 1519-MaxSize Byte Tx Frame */ + + GM_TXF_COL = GM_MIB_CNT_BASE + 304, /* Tx Collision */ + GM_TXF_LAT_COL = GM_MIB_CNT_BASE + 312, /* Tx Late Collision */ + GM_TXF_ABO_COL = GM_MIB_CNT_BASE + 320, /* Tx aborted due to Exces. Col. */ + GM_TXF_MUL_COL = GM_MIB_CNT_BASE + 328, /* Tx Multiple Collision */ + GM_TXF_SNG_COL = GM_MIB_CNT_BASE + 336, /* Tx Single Collision */ + GM_TXE_FIFO_UR = GM_MIB_CNT_BASE + 344, /* Tx FIFO Underrun Event */ +}; + +/* GMAC Bit Definitions */ +/* GM_GP_STAT 16 bit r/o General Purpose Status Register */ +enum { + GM_GPSR_SPEED = 1<<15, /* Bit 15: Port Speed (1 = 100 Mbps) */ + GM_GPSR_DUPLEX = 1<<14, /* Bit 14: Duplex Mode (1 = Full) */ + GM_GPSR_FC_TX_DIS = 1<<13, /* Bit 13: Tx Flow-Control Mode Disabled */ + GM_GPSR_LINK_UP = 1<<12, /* Bit 12: Link Up Status */ + GM_GPSR_PAUSE = 1<<11, /* Bit 11: Pause State */ + GM_GPSR_TX_ACTIVE = 1<<10, /* Bit 10: Tx in Progress */ + GM_GPSR_EXC_COL = 1<<9, /* Bit 9: Excessive Collisions Occurred */ + GM_GPSR_LAT_COL = 1<<8, /* Bit 8: Late Collisions Occurred */ + + GM_GPSR_PHY_ST_CH = 1<<5, /* Bit 5: PHY Status Change */ + GM_GPSR_GIG_SPEED = 1<<4, /* Bit 4: Gigabit Speed (1 = 1000 Mbps) */ + GM_GPSR_PART_MODE = 1<<3, /* Bit 3: Partition mode */ + GM_GPSR_FC_RX_DIS = 1<<2, /* Bit 2: Rx Flow-Control Mode Disabled */ + GM_GPSR_PROM_EN = 1<<1, /* Bit 1: Promiscuous Mode Enabled */ +}; + +/* GM_GP_CTRL 16 bit r/w General Purpose Control Register */ +enum { + GM_GPCR_PROM_ENA = 1<<14, /* Bit 14: Enable Promiscuous Mode */ + GM_GPCR_FC_TX_DIS = 1<<13, /* Bit 13: Disable Tx Flow-Control Mode */ + GM_GPCR_TX_ENA = 1<<12, /* Bit 12: Enable Transmit */ + GM_GPCR_RX_ENA = 1<<11, /* Bit 11: Enable Receive */ + GM_GPCR_BURST_ENA = 1<<10, /* Bit 10: Enable Burst Mode */ + GM_GPCR_LOOP_ENA = 1<<9, /* Bit 9: Enable MAC Loopback Mode */ + GM_GPCR_PART_ENA = 1<<8, /* Bit 8: Enable Partition Mode */ + GM_GPCR_GIGS_ENA = 1<<7, /* Bit 7: Gigabit Speed (1000 Mbps) */ + GM_GPCR_FL_PASS = 1<<6, /* Bit 6: Force Link Pass */ + GM_GPCR_DUP_FULL = 1<<5, /* Bit 5: Full Duplex Mode */ + GM_GPCR_FC_RX_DIS = 1<<4, /* Bit 4: Disable Rx Flow-Control Mode */ + GM_GPCR_SPEED_100 = 1<<3, /* Bit 3: Port Speed 100 Mbps */ + GM_GPCR_AU_DUP_DIS = 1<<2, /* Bit 2: Disable Auto-Update Duplex */ + GM_GPCR_AU_FCT_DIS = 1<<1, /* Bit 1: Disable Auto-Update Flow-C. */ + GM_GPCR_AU_SPD_DIS = 1<<0, /* Bit 0: Disable Auto-Update Speed */ +}; + +#define GM_GPCR_SPEED_1000 (GM_GPCR_GIGS_ENA | GM_GPCR_SPEED_100) +#define GM_GPCR_AU_ALL_DIS (GM_GPCR_AU_DUP_DIS | GM_GPCR_AU_FCT_DIS|GM_GPCR_AU_SPD_DIS) + +/* GM_TX_CTRL 16 bit r/w Transmit Control Register */ +enum { + GM_TXCR_FORCE_JAM = 1<<15, /* Bit 15: Force Jam / Flow-Control */ + GM_TXCR_CRC_DIS = 1<<14, /* Bit 14: Disable insertion of CRC */ + GM_TXCR_PAD_DIS = 1<<13, /* Bit 13: Disable padding of packets */ + GM_TXCR_COL_THR_MSK = 7<<10, /* Bit 12..10: Collision Threshold */ +}; + +#define TX_COL_THR(x) (((x)<<10) & GM_TXCR_COL_THR_MSK) +#define TX_COL_DEF 0x04 /* late collision after 64 byte */ + +/* GM_RX_CTRL 16 bit r/w Receive Control Register */ +enum { + GM_RXCR_UCF_ENA = 1<<15, /* Bit 15: Enable Unicast filtering */ + GM_RXCR_MCF_ENA = 1<<14, /* Bit 14: Enable Multicast filtering */ + GM_RXCR_CRC_DIS = 1<<13, /* Bit 13: Remove 4-byte CRC */ + GM_RXCR_PASS_FC = 1<<12, /* Bit 12: Pass FC packets to FIFO */ +}; + +/* GM_TX_PARAM 16 bit r/w Transmit Parameter Register */ +enum { + GM_TXPA_JAMLEN_MSK = 0x03<<14, /* Bit 15..14: Jam Length */ + GM_TXPA_JAMIPG_MSK = 0x1f<<9, /* Bit 13..9: Jam IPG */ + GM_TXPA_JAMDAT_MSK = 0x1f<<4, /* Bit 8..4: IPG Jam to Data */ + + TX_JAM_LEN_DEF = 0x03, + TX_JAM_IPG_DEF = 0x0b, + TX_IPG_JAM_DEF = 0x1c, +}; + +#define TX_JAM_LEN_VAL(x) (((x)<<14) & GM_TXPA_JAMLEN_MSK) +#define TX_JAM_IPG_VAL(x) (((x)<<9) & GM_TXPA_JAMIPG_MSK) +#define TX_IPG_JAM_DATA(x) (((x)<<4) & GM_TXPA_JAMDAT_MSK) + + +/* GM_SERIAL_MODE 16 bit r/w Serial Mode Register */ +enum { + GM_SMOD_DATABL_MSK = 0x1f<<11, /* Bit 15..11: Data Blinder (r/o) */ + GM_SMOD_LIMIT_4 = 1<<10, /* Bit 10: 4 consecutive Tx trials */ + GM_SMOD_VLAN_ENA = 1<<9, /* Bit 9: Enable VLAN (Max. Frame Len) */ + GM_SMOD_JUMBO_ENA = 1<<8, /* Bit 8: Enable Jumbo (Max. Frame Len) */ + GM_SMOD_IPG_MSK = 0x1f /* Bit 4..0: Inter-Packet Gap (IPG) */ +}; + +#define DATA_BLIND_VAL(x) (((x)<<11) & GM_SMOD_DATABL_MSK) +#define DATA_BLIND_DEF 0x04 + +#define IPG_DATA_VAL(x) (x & GM_SMOD_IPG_MSK) +#define IPG_DATA_DEF 0x1e + +/* GM_SMI_CTRL 16 bit r/w SMI Control Register */ +enum { + GM_SMI_CT_PHY_A_MSK = 0x1f<<11, /* Bit 15..11: PHY Device Address */ + GM_SMI_CT_REG_A_MSK = 0x1f<<6, /* Bit 10.. 6: PHY Register Address */ + GM_SMI_CT_OP_RD = 1<<5, /* Bit 5: OpCode Read (0=Write)*/ + GM_SMI_CT_RD_VAL = 1<<4, /* Bit 4: Read Valid (Read completed) */ + GM_SMI_CT_BUSY = 1<<3, /* Bit 3: Busy (Operation in progress) */ +}; + +#define GM_SMI_CT_PHY_AD(x) (((x)<<11) & GM_SMI_CT_PHY_A_MSK) +#define GM_SMI_CT_REG_AD(x) (((x)<<6) & GM_SMI_CT_REG_A_MSK) + +/* GM_PHY_ADDR 16 bit r/w GPHY Address Register */ +enum { + GM_PAR_MIB_CLR = 1<<5, /* Bit 5: Set MIB Clear Counter Mode */ + GM_PAR_MIB_TST = 1<<4, /* Bit 4: MIB Load Counter (Test Mode) */ +}; + +/* Receive Frame Status Encoding */ +enum { + GMR_FS_LEN = 0xffff<<16, /* Bit 31..16: Rx Frame Length */ + GMR_FS_LEN_SHIFT = 16, + GMR_FS_VLAN = 1<<13, /* Bit 13: VLAN Packet */ + GMR_FS_JABBER = 1<<12, /* Bit 12: Jabber Packet */ + GMR_FS_UN_SIZE = 1<<11, /* Bit 11: Undersize Packet */ + GMR_FS_MC = 1<<10, /* Bit 10: Multicast Packet */ + GMR_FS_BC = 1<<9, /* Bit 9: Broadcast Packet */ + GMR_FS_RX_OK = 1<<8, /* Bit 8: Receive OK (Good Packet) */ + GMR_FS_GOOD_FC = 1<<7, /* Bit 7: Good Flow-Control Packet */ + GMR_FS_BAD_FC = 1<<6, /* Bit 6: Bad Flow-Control Packet */ + GMR_FS_MII_ERR = 1<<5, /* Bit 5: MII Error */ + GMR_FS_LONG_ERR = 1<<4, /* Bit 4: Too Long Packet */ + GMR_FS_FRAGMENT = 1<<3, /* Bit 3: Fragment */ + + GMR_FS_CRC_ERR = 1<<1, /* Bit 1: CRC Error */ + GMR_FS_RX_FF_OV = 1<<0, /* Bit 0: Rx FIFO Overflow */ + +/* + * GMR_FS_ANY_ERR (analogous to XMR_FS_ANY_ERR) + */ + GMR_FS_ANY_ERR = GMR_FS_CRC_ERR | GMR_FS_LONG_ERR | + GMR_FS_MII_ERR | GMR_FS_BAD_FC | GMR_FS_GOOD_FC | + GMR_FS_JABBER, +/* Rx GMAC FIFO Flush Mask (default) */ + RX_FF_FL_DEF_MSK = GMR_FS_CRC_ERR | GMR_FS_RX_FF_OV |GMR_FS_MII_ERR | + GMR_FS_BAD_FC | GMR_FS_UN_SIZE | GMR_FS_JABBER, +}; + +/* RX_GMF_CTRL_T 32 bit Rx GMAC FIFO Control/Test */ +enum { + GMF_WP_TST_ON = 1<<14, /* Write Pointer Test On */ + GMF_WP_TST_OFF = 1<<13, /* Write Pointer Test Off */ + GMF_WP_STEP = 1<<12, /* Write Pointer Step/Increment */ + + GMF_RP_TST_ON = 1<<10, /* Read Pointer Test On */ + GMF_RP_TST_OFF = 1<<9, /* Read Pointer Test Off */ + GMF_RP_STEP = 1<<8, /* Read Pointer Step/Increment */ + GMF_RX_F_FL_ON = 1<<7, /* Rx FIFO Flush Mode On */ + GMF_RX_F_FL_OFF = 1<<6, /* Rx FIFO Flush Mode Off */ + GMF_CLI_RX_FO = 1<<5, /* Clear IRQ Rx FIFO Overrun */ + GMF_CLI_RX_FC = 1<<4, /* Clear IRQ Rx Frame Complete */ + GMF_OPER_ON = 1<<3, /* Operational Mode On */ + GMF_OPER_OFF = 1<<2, /* Operational Mode Off */ + GMF_RST_CLR = 1<<1, /* Clear GMAC FIFO Reset */ + GMF_RST_SET = 1<<0, /* Set GMAC FIFO Reset */ + + RX_GMF_FL_THR_DEF = 0xa, /* flush threshold (default) */ +}; + + +/* TX_GMF_CTRL_T 32 bit Tx GMAC FIFO Control/Test */ +enum { + GMF_WSP_TST_ON = 1<<18, /* Write Shadow Pointer Test On */ + GMF_WSP_TST_OFF = 1<<17, /* Write Shadow Pointer Test Off */ + GMF_WSP_STEP = 1<<16, /* Write Shadow Pointer Step/Increment */ + + GMF_CLI_TX_FU = 1<<6, /* Clear IRQ Tx FIFO Underrun */ + GMF_CLI_TX_FC = 1<<5, /* Clear IRQ Tx Frame Complete */ + GMF_CLI_TX_PE = 1<<4, /* Clear IRQ Tx Parity Error */ +}; + +/* GMAC_TI_ST_CTRL 8 bit Time Stamp Timer Ctrl Reg (YUKON only) */ +enum { + GMT_ST_START = 1<<2, /* Start Time Stamp Timer */ + GMT_ST_STOP = 1<<1, /* Stop Time Stamp Timer */ + GMT_ST_CLR_IRQ = 1<<0, /* Clear Time Stamp Timer IRQ */ +}; + +/* GMAC_CTRL 32 bit GMAC Control Reg (YUKON only) */ +enum { + GMC_H_BURST_ON = 1<<7, /* Half Duplex Burst Mode On */ + GMC_H_BURST_OFF = 1<<6, /* Half Duplex Burst Mode Off */ + GMC_F_LOOPB_ON = 1<<5, /* FIFO Loopback On */ + GMC_F_LOOPB_OFF = 1<<4, /* FIFO Loopback Off */ + GMC_PAUSE_ON = 1<<3, /* Pause On */ + GMC_PAUSE_OFF = 1<<2, /* Pause Off */ + GMC_RST_CLR = 1<<1, /* Clear GMAC Reset */ + GMC_RST_SET = 1<<0, /* Set GMAC Reset */ +}; + +/* GPHY_CTRL 32 bit GPHY Control Reg (YUKON only) */ +enum { + GPC_SEL_BDT = 1<<28, /* Select Bi-Dir. Transfer for MDC/MDIO */ + GPC_INT_POL_HI = 1<<27, /* IRQ Polarity is Active HIGH */ + GPC_75_OHM = 1<<26, /* Use 75 Ohm Termination instead of 50 */ + GPC_DIS_FC = 1<<25, /* Disable Automatic Fiber/Copper Detection */ + GPC_DIS_SLEEP = 1<<24, /* Disable Energy Detect */ + GPC_HWCFG_M_3 = 1<<23, /* HWCFG_MODE[3] */ + GPC_HWCFG_M_2 = 1<<22, /* HWCFG_MODE[2] */ + GPC_HWCFG_M_1 = 1<<21, /* HWCFG_MODE[1] */ + GPC_HWCFG_M_0 = 1<<20, /* HWCFG_MODE[0] */ + GPC_ANEG_0 = 1<<19, /* ANEG[0] */ + GPC_ENA_XC = 1<<18, /* Enable MDI crossover */ + GPC_DIS_125 = 1<<17, /* Disable 125 MHz clock */ + GPC_ANEG_3 = 1<<16, /* ANEG[3] */ + GPC_ANEG_2 = 1<<15, /* ANEG[2] */ + GPC_ANEG_1 = 1<<14, /* ANEG[1] */ + GPC_ENA_PAUSE = 1<<13, /* Enable Pause (SYM_OR_REM) */ + GPC_PHYADDR_4 = 1<<12, /* Bit 4 of Phy Addr */ + GPC_PHYADDR_3 = 1<<11, /* Bit 3 of Phy Addr */ + GPC_PHYADDR_2 = 1<<10, /* Bit 2 of Phy Addr */ + GPC_PHYADDR_1 = 1<<9, /* Bit 1 of Phy Addr */ + GPC_PHYADDR_0 = 1<<8, /* Bit 0 of Phy Addr */ + /* Bits 7..2: reserved */ + GPC_RST_CLR = 1<<1, /* Clear GPHY Reset */ + GPC_RST_SET = 1<<0, /* Set GPHY Reset */ +}; + +#define GPC_HWCFG_GMII_COP (GPC_HWCFG_M_3|GPC_HWCFG_M_2 | GPC_HWCFG_M_1 | GPC_HWCFG_M_0) +#define GPC_HWCFG_GMII_FIB (GPC_HWCFG_M_2 | GPC_HWCFG_M_1 | GPC_HWCFG_M_0) +#define GPC_ANEG_ADV_ALL_M (GPC_ANEG_3 | GPC_ANEG_2 | GPC_ANEG_1 | GPC_ANEG_0) + +/* forced speed and duplex mode (don't mix with other ANEG bits) */ +#define GPC_FRC10MBIT_HALF 0 +#define GPC_FRC10MBIT_FULL GPC_ANEG_0 +#define GPC_FRC100MBIT_HALF GPC_ANEG_1 +#define GPC_FRC100MBIT_FULL (GPC_ANEG_0 | GPC_ANEG_1) + +/* auto-negotiation with limited advertised speeds */ +/* mix only with master/slave settings (for copper) */ +#define GPC_ADV_1000_HALF GPC_ANEG_2 +#define GPC_ADV_1000_FULL GPC_ANEG_3 +#define GPC_ADV_ALL (GPC_ANEG_2 | GPC_ANEG_3) + +/* master/slave settings */ +/* only for copper with 1000 Mbps */ +#define GPC_FORCE_MASTER 0 +#define GPC_FORCE_SLAVE GPC_ANEG_0 +#define GPC_PREF_MASTER GPC_ANEG_1 +#define GPC_PREF_SLAVE (GPC_ANEG_1 | GPC_ANEG_0) + +/* GMAC_IRQ_SRC 8 bit GMAC Interrupt Source Reg (YUKON only) */ +/* GMAC_IRQ_MSK 8 bit GMAC Interrupt Mask Reg (YUKON only) */ +enum { + GM_IS_TX_CO_OV = 1<<5, /* Transmit Counter Overflow IRQ */ + GM_IS_RX_CO_OV = 1<<4, /* Receive Counter Overflow IRQ */ + GM_IS_TX_FF_UR = 1<<3, /* Transmit FIFO Underrun */ + GM_IS_TX_COMPL = 1<<2, /* Frame Transmission Complete */ + GM_IS_RX_FF_OR = 1<<1, /* Receive FIFO Overrun */ + GM_IS_RX_COMPL = 1<<0, /* Frame Reception Complete */ + +#define GMAC_DEF_MSK (GM_IS_RX_FF_OR | GM_IS_TX_FF_UR) + +/* GMAC_LINK_CTRL 16 bit GMAC Link Control Reg (YUKON only) */ + /* Bits 15.. 2: reserved */ + GMLC_RST_CLR = 1<<1, /* Clear GMAC Link Reset */ + GMLC_RST_SET = 1<<0, /* Set GMAC Link Reset */ + + +/* WOL_CTRL_STAT 16 bit WOL Control/Status Reg */ + WOL_CTL_LINK_CHG_OCC = 1<<15, + WOL_CTL_MAGIC_PKT_OCC = 1<<14, + WOL_CTL_PATTERN_OCC = 1<<13, + WOL_CTL_CLEAR_RESULT = 1<<12, + WOL_CTL_ENA_PME_ON_LINK_CHG = 1<<11, + WOL_CTL_DIS_PME_ON_LINK_CHG = 1<<10, + WOL_CTL_ENA_PME_ON_MAGIC_PKT = 1<<9, + WOL_CTL_DIS_PME_ON_MAGIC_PKT = 1<<8, + WOL_CTL_ENA_PME_ON_PATTERN = 1<<7, + WOL_CTL_DIS_PME_ON_PATTERN = 1<<6, + WOL_CTL_ENA_LINK_CHG_UNIT = 1<<5, + WOL_CTL_DIS_LINK_CHG_UNIT = 1<<4, + WOL_CTL_ENA_MAGIC_PKT_UNIT = 1<<3, + WOL_CTL_DIS_MAGIC_PKT_UNIT = 1<<2, + WOL_CTL_ENA_PATTERN_UNIT = 1<<1, + WOL_CTL_DIS_PATTERN_UNIT = 1<<0, +}; + +#define WOL_CTL_DEFAULT \ + (WOL_CTL_DIS_PME_ON_LINK_CHG | \ + WOL_CTL_DIS_PME_ON_PATTERN | \ + WOL_CTL_DIS_PME_ON_MAGIC_PKT | \ + WOL_CTL_DIS_LINK_CHG_UNIT | \ + WOL_CTL_DIS_PATTERN_UNIT | \ + WOL_CTL_DIS_MAGIC_PKT_UNIT) + +/* WOL_MATCH_CTL 8 bit WOL Match Control Reg */ +#define WOL_CTL_PATT_ENA(x) (1 << (x)) + + +/* XMAC II registers */ +enum { + XM_MMU_CMD = 0x0000, /* 16 bit r/w MMU Command Register */ + XM_POFF = 0x0008, /* 32 bit r/w Packet Offset Register */ + XM_BURST = 0x000c, /* 32 bit r/w Burst Register for half duplex*/ + XM_1L_VLAN_TAG = 0x0010, /* 16 bit r/w One Level VLAN Tag ID */ + XM_2L_VLAN_TAG = 0x0014, /* 16 bit r/w Two Level VLAN Tag ID */ + XM_TX_CMD = 0x0020, /* 16 bit r/w Transmit Command Register */ + XM_TX_RT_LIM = 0x0024, /* 16 bit r/w Transmit Retry Limit Register */ + XM_TX_STIME = 0x0028, /* 16 bit r/w Transmit Slottime Register */ + XM_TX_IPG = 0x002c, /* 16 bit r/w Transmit Inter Packet Gap */ + XM_RX_CMD = 0x0030, /* 16 bit r/w Receive Command Register */ + XM_PHY_ADDR = 0x0034, /* 16 bit r/w PHY Address Register */ + XM_PHY_DATA = 0x0038, /* 16 bit r/w PHY Data Register */ + XM_GP_PORT = 0x0040, /* 32 bit r/w General Purpose Port Register */ + XM_IMSK = 0x0044, /* 16 bit r/w Interrupt Mask Register */ + XM_ISRC = 0x0048, /* 16 bit r/o Interrupt Status Register */ + XM_HW_CFG = 0x004c, /* 16 bit r/w Hardware Config Register */ + XM_TX_LO_WM = 0x0060, /* 16 bit r/w Tx FIFO Low Water Mark */ + XM_TX_HI_WM = 0x0062, /* 16 bit r/w Tx FIFO High Water Mark */ + XM_TX_THR = 0x0064, /* 16 bit r/w Tx Request Threshold */ + XM_HT_THR = 0x0066, /* 16 bit r/w Host Request Threshold */ + XM_PAUSE_DA = 0x0068, /* NA reg r/w Pause Destination Address */ + XM_CTL_PARA = 0x0070, /* 32 bit r/w Control Parameter Register */ + XM_MAC_OPCODE = 0x0074, /* 16 bit r/w Opcode for MAC control frames */ + XM_MAC_PTIME = 0x0076, /* 16 bit r/w Pause time for MAC ctrl frames*/ + XM_TX_STAT = 0x0078, /* 32 bit r/o Tx Status LIFO Register */ + + XM_EXM_START = 0x0080, /* r/w Start Address of the EXM Regs */ +#define XM_EXM(reg) (XM_EXM_START + ((reg) << 3)) +}; + +enum { + XM_SRC_CHK = 0x0100, /* NA reg r/w Source Check Address Register */ + XM_SA = 0x0108, /* NA reg r/w Station Address Register */ + XM_HSM = 0x0110, /* 64 bit r/w Hash Match Address Registers */ + XM_RX_LO_WM = 0x0118, /* 16 bit r/w Receive Low Water Mark */ + XM_RX_HI_WM = 0x011a, /* 16 bit r/w Receive High Water Mark */ + XM_RX_THR = 0x011c, /* 32 bit r/w Receive Request Threshold */ + XM_DEV_ID = 0x0120, /* 32 bit r/o Device ID Register */ + XM_MODE = 0x0124, /* 32 bit r/w Mode Register */ + XM_LSA = 0x0128, /* NA reg r/o Last Source Register */ + XM_TS_READ = 0x0130, /* 32 bit r/o Time Stamp Read Register */ + XM_TS_LOAD = 0x0134, /* 32 bit r/o Time Stamp Load Value */ + XM_STAT_CMD = 0x0200, /* 16 bit r/w Statistics Command Register */ + XM_RX_CNT_EV = 0x0204, /* 32 bit r/o Rx Counter Event Register */ + XM_TX_CNT_EV = 0x0208, /* 32 bit r/o Tx Counter Event Register */ + XM_RX_EV_MSK = 0x020c, /* 32 bit r/w Rx Counter Event Mask */ + XM_TX_EV_MSK = 0x0210, /* 32 bit r/w Tx Counter Event Mask */ + XM_TXF_OK = 0x0280, /* 32 bit r/o Frames Transmitted OK Conuter */ + XM_TXO_OK_HI = 0x0284, /* 32 bit r/o Octets Transmitted OK High Cnt*/ + XM_TXO_OK_LO = 0x0288, /* 32 bit r/o Octets Transmitted OK Low Cnt */ + XM_TXF_BC_OK = 0x028c, /* 32 bit r/o Broadcast Frames Xmitted OK */ + XM_TXF_MC_OK = 0x0290, /* 32 bit r/o Multicast Frames Xmitted OK */ + XM_TXF_UC_OK = 0x0294, /* 32 bit r/o Unicast Frames Xmitted OK */ + XM_TXF_LONG = 0x0298, /* 32 bit r/o Tx Long Frame Counter */ + XM_TXE_BURST = 0x029c, /* 32 bit r/o Tx Burst Event Counter */ + XM_TXF_MPAUSE = 0x02a0, /* 32 bit r/o Tx Pause MAC Ctrl Frame Cnt */ + XM_TXF_MCTRL = 0x02a4, /* 32 bit r/o Tx MAC Ctrl Frame Counter */ + XM_TXF_SNG_COL = 0x02a8, /* 32 bit r/o Tx Single Collision Counter */ + XM_TXF_MUL_COL = 0x02ac, /* 32 bit r/o Tx Multiple Collision Counter */ + XM_TXF_ABO_COL = 0x02b0, /* 32 bit r/o Tx aborted due to Exces. Col. */ + XM_TXF_LAT_COL = 0x02b4, /* 32 bit r/o Tx Late Collision Counter */ + XM_TXF_DEF = 0x02b8, /* 32 bit r/o Tx Deferred Frame Counter */ + XM_TXF_EX_DEF = 0x02bc, /* 32 bit r/o Tx Excessive Deferall Counter */ + XM_TXE_FIFO_UR = 0x02c0, /* 32 bit r/o Tx FIFO Underrun Event Cnt */ + XM_TXE_CS_ERR = 0x02c4, /* 32 bit r/o Tx Carrier Sense Error Cnt */ + XM_TXP_UTIL = 0x02c8, /* 32 bit r/o Tx Utilization in % */ + XM_TXF_64B = 0x02d0, /* 32 bit r/o 64 Byte Tx Frame Counter */ + XM_TXF_127B = 0x02d4, /* 32 bit r/o 65-127 Byte Tx Frame Counter */ + XM_TXF_255B = 0x02d8, /* 32 bit r/o 128-255 Byte Tx Frame Counter */ + XM_TXF_511B = 0x02dc, /* 32 bit r/o 256-511 Byte Tx Frame Counter */ + XM_TXF_1023B = 0x02e0, /* 32 bit r/o 512-1023 Byte Tx Frame Counter*/ + XM_TXF_MAX_SZ = 0x02e4, /* 32 bit r/o 1024-MaxSize Byte Tx Frame Cnt*/ + XM_RXF_OK = 0x0300, /* 32 bit r/o Frames Received OK */ + XM_RXO_OK_HI = 0x0304, /* 32 bit r/o Octets Received OK High Cnt */ + XM_RXO_OK_LO = 0x0308, /* 32 bit r/o Octets Received OK Low Counter*/ + XM_RXF_BC_OK = 0x030c, /* 32 bit r/o Broadcast Frames Received OK */ + XM_RXF_MC_OK = 0x0310, /* 32 bit r/o Multicast Frames Received OK */ + XM_RXF_UC_OK = 0x0314, /* 32 bit r/o Unicast Frames Received OK */ + XM_RXF_MPAUSE = 0x0318, /* 32 bit r/o Rx Pause MAC Ctrl Frame Cnt */ + XM_RXF_MCTRL = 0x031c, /* 32 bit r/o Rx MAC Ctrl Frame Counter */ + XM_RXF_INV_MP = 0x0320, /* 32 bit r/o Rx invalid Pause Frame Cnt */ + XM_RXF_INV_MOC = 0x0324, /* 32 bit r/o Rx Frames with inv. MAC Opcode*/ + XM_RXE_BURST = 0x0328, /* 32 bit r/o Rx Burst Event Counter */ + XM_RXE_FMISS = 0x032c, /* 32 bit r/o Rx Missed Frames Event Cnt */ + XM_RXF_FRA_ERR = 0x0330, /* 32 bit r/o Rx Framing Error Counter */ + XM_RXE_FIFO_OV = 0x0334, /* 32 bit r/o Rx FIFO overflow Event Cnt */ + XM_RXF_JAB_PKT = 0x0338, /* 32 bit r/o Rx Jabber Packet Frame Cnt */ + XM_RXE_CAR_ERR = 0x033c, /* 32 bit r/o Rx Carrier Event Error Cnt */ + XM_RXF_LEN_ERR = 0x0340, /* 32 bit r/o Rx in Range Length Error */ + XM_RXE_SYM_ERR = 0x0344, /* 32 bit r/o Rx Symbol Error Counter */ + XM_RXE_SHT_ERR = 0x0348, /* 32 bit r/o Rx Short Event Error Cnt */ + XM_RXE_RUNT = 0x034c, /* 32 bit r/o Rx Runt Event Counter */ + XM_RXF_LNG_ERR = 0x0350, /* 32 bit r/o Rx Frame too Long Error Cnt */ + XM_RXF_FCS_ERR = 0x0354, /* 32 bit r/o Rx Frame Check Seq. Error Cnt */ + XM_RXF_CEX_ERR = 0x035c, /* 32 bit r/o Rx Carrier Ext Error Frame Cnt*/ + XM_RXP_UTIL = 0x0360, /* 32 bit r/o Rx Utilization in % */ + XM_RXF_64B = 0x0368, /* 32 bit r/o 64 Byte Rx Frame Counter */ + XM_RXF_127B = 0x036c, /* 32 bit r/o 65-127 Byte Rx Frame Counter */ + XM_RXF_255B = 0x0370, /* 32 bit r/o 128-255 Byte Rx Frame Counter */ + XM_RXF_511B = 0x0374, /* 32 bit r/o 256-511 Byte Rx Frame Counter */ + XM_RXF_1023B = 0x0378, /* 32 bit r/o 512-1023 Byte Rx Frame Counter*/ + XM_RXF_MAX_SZ = 0x037c, /* 32 bit r/o 1024-MaxSize Byte Rx Frame Cnt*/ +}; + +/* XM_MMU_CMD 16 bit r/w MMU Command Register */ +enum { + XM_MMU_PHY_RDY = 1<<12, /* Bit 12: PHY Read Ready */ + XM_MMU_PHY_BUSY = 1<<11, /* Bit 11: PHY Busy */ + XM_MMU_IGN_PF = 1<<10, /* Bit 10: Ignore Pause Frame */ + XM_MMU_MAC_LB = 1<<9, /* Bit 9: Enable MAC Loopback */ + XM_MMU_FRC_COL = 1<<7, /* Bit 7: Force Collision */ + XM_MMU_SIM_COL = 1<<6, /* Bit 6: Simulate Collision */ + XM_MMU_NO_PRE = 1<<5, /* Bit 5: No MDIO Preamble */ + XM_MMU_GMII_FD = 1<<4, /* Bit 4: GMII uses Full Duplex */ + XM_MMU_RAT_CTRL = 1<<3, /* Bit 3: Enable Rate Control */ + XM_MMU_GMII_LOOP= 1<<2, /* Bit 2: PHY is in Loopback Mode */ + XM_MMU_ENA_RX = 1<<1, /* Bit 1: Enable Receiver */ + XM_MMU_ENA_TX = 1<<0, /* Bit 0: Enable Transmitter */ +}; + + +/* XM_TX_CMD 16 bit r/w Transmit Command Register */ +enum { + XM_TX_BK2BK = 1<<6, /* Bit 6: Ignor Carrier Sense (Tx Bk2Bk)*/ + XM_TX_ENC_BYP = 1<<5, /* Bit 5: Set Encoder in Bypass Mode */ + XM_TX_SAM_LINE = 1<<4, /* Bit 4: (sc) Start utilization calculation */ + XM_TX_NO_GIG_MD = 1<<3, /* Bit 3: Disable Carrier Extension */ + XM_TX_NO_PRE = 1<<2, /* Bit 2: Disable Preamble Generation */ + XM_TX_NO_CRC = 1<<1, /* Bit 1: Disable CRC Generation */ + XM_TX_AUTO_PAD = 1<<0, /* Bit 0: Enable Automatic Padding */ +}; + +/* XM_TX_RT_LIM 16 bit r/w Transmit Retry Limit Register */ +#define XM_RT_LIM_MSK 0x1f /* Bit 4..0: Tx Retry Limit */ + + +/* XM_TX_STIME 16 bit r/w Transmit Slottime Register */ +#define XM_STIME_MSK 0x7f /* Bit 6..0: Tx Slottime bits */ + + +/* XM_TX_IPG 16 bit r/w Transmit Inter Packet Gap */ +#define XM_IPG_MSK 0xff /* Bit 7..0: IPG value bits */ + + +/* XM_RX_CMD 16 bit r/w Receive Command Register */ +enum { + XM_RX_LENERR_OK = 1<<8, /* Bit 8 don't set Rx Err bit for */ + /* inrange error packets */ + XM_RX_BIG_PK_OK = 1<<7, /* Bit 7 don't set Rx Err bit for */ + /* jumbo packets */ + XM_RX_IPG_CAP = 1<<6, /* Bit 6 repl. type field with IPG */ + XM_RX_TP_MD = 1<<5, /* Bit 5: Enable transparent Mode */ + XM_RX_STRIP_FCS = 1<<4, /* Bit 4: Enable FCS Stripping */ + XM_RX_SELF_RX = 1<<3, /* Bit 3: Enable Rx of own packets */ + XM_RX_SAM_LINE = 1<<2, /* Bit 2: (sc) Start utilization calculation */ + XM_RX_STRIP_PAD = 1<<1, /* Bit 1: Strip pad bytes of Rx frames */ + XM_RX_DIS_CEXT = 1<<0, /* Bit 0: Disable carrier ext. check */ +}; + + +/* XM_GP_PORT 32 bit r/w General Purpose Port Register */ +enum { + XM_GP_ANIP = 1<<6, /* Bit 6: (ro) Auto-Neg. in progress */ + XM_GP_FRC_INT = 1<<5, /* Bit 5: (sc) Force Interrupt */ + XM_GP_RES_MAC = 1<<3, /* Bit 3: (sc) Reset MAC and FIFOs */ + XM_GP_RES_STAT = 1<<2, /* Bit 2: (sc) Reset the statistics module */ + XM_GP_INP_ASS = 1<<0, /* Bit 0: (ro) GP Input Pin asserted */ +}; + + +/* XM_IMSK 16 bit r/w Interrupt Mask Register */ +/* XM_ISRC 16 bit r/o Interrupt Status Register */ +enum { + XM_IS_LNK_AE = 1<<14, /* Bit 14: Link Asynchronous Event */ + XM_IS_TX_ABORT = 1<<13, /* Bit 13: Transmit Abort, late Col. etc */ + XM_IS_FRC_INT = 1<<12, /* Bit 12: Force INT bit set in GP */ + XM_IS_INP_ASS = 1<<11, /* Bit 11: Input Asserted, GP bit 0 set */ + XM_IS_LIPA_RC = 1<<10, /* Bit 10: Link Partner requests config */ + XM_IS_RX_PAGE = 1<<9, /* Bit 9: Page Received */ + XM_IS_TX_PAGE = 1<<8, /* Bit 8: Next Page Loaded for Transmit */ + XM_IS_AND = 1<<7, /* Bit 7: Auto-Negotiation Done */ + XM_IS_TSC_OV = 1<<6, /* Bit 6: Time Stamp Counter Overflow */ + XM_IS_RXC_OV = 1<<5, /* Bit 5: Rx Counter Event Overflow */ + XM_IS_TXC_OV = 1<<4, /* Bit 4: Tx Counter Event Overflow */ + XM_IS_RXF_OV = 1<<3, /* Bit 3: Receive FIFO Overflow */ + XM_IS_TXF_UR = 1<<2, /* Bit 2: Transmit FIFO Underrun */ + XM_IS_TX_COMP = 1<<1, /* Bit 1: Frame Tx Complete */ + XM_IS_RX_COMP = 1<<0, /* Bit 0: Frame Rx Complete */ + + XM_IMSK_DISABLE = 0xffff, +}; + +/* XM_HW_CFG 16 bit r/w Hardware Config Register */ +enum { + XM_HW_GEN_EOP = 1<<3, /* Bit 3: generate End of Packet pulse */ + XM_HW_COM4SIG = 1<<2, /* Bit 2: use Comma Detect for Sig. Det.*/ + XM_HW_GMII_MD = 1<<0, /* Bit 0: GMII Interface selected */ +}; + + +/* XM_TX_LO_WM 16 bit r/w Tx FIFO Low Water Mark */ +/* XM_TX_HI_WM 16 bit r/w Tx FIFO High Water Mark */ +#define XM_TX_WM_MSK 0x01ff /* Bit 9.. 0 Tx FIFO Watermark bits */ + +/* XM_TX_THR 16 bit r/w Tx Request Threshold */ +/* XM_HT_THR 16 bit r/w Host Request Threshold */ +/* XM_RX_THR 16 bit r/w Rx Request Threshold */ +#define XM_THR_MSK 0x03ff /* Bit 10.. 0 Rx/Tx Request Threshold bits */ + + +/* XM_TX_STAT 32 bit r/o Tx Status LIFO Register */ +enum { + XM_ST_VALID = (1UL<<31), /* Bit 31: Status Valid */ + XM_ST_BYTE_CNT = (0x3fffL<<17), /* Bit 30..17: Tx frame Length */ + XM_ST_RETRY_CNT = (0x1fL<<12), /* Bit 16..12: Retry Count */ + XM_ST_EX_COL = 1<<11, /* Bit 11: Excessive Collisions */ + XM_ST_EX_DEF = 1<<10, /* Bit 10: Excessive Deferral */ + XM_ST_BURST = 1<<9, /* Bit 9: p. xmitted in burst md*/ + XM_ST_DEFER = 1<<8, /* Bit 8: packet was defered */ + XM_ST_BC = 1<<7, /* Bit 7: Broadcast packet */ + XM_ST_MC = 1<<6, /* Bit 6: Multicast packet */ + XM_ST_UC = 1<<5, /* Bit 5: Unicast packet */ + XM_ST_TX_UR = 1<<4, /* Bit 4: FIFO Underrun occurred */ + XM_ST_CS_ERR = 1<<3, /* Bit 3: Carrier Sense Error */ + XM_ST_LAT_COL = 1<<2, /* Bit 2: Late Collision Error */ + XM_ST_MUL_COL = 1<<1, /* Bit 1: Multiple Collisions */ + XM_ST_SGN_COL = 1<<0, /* Bit 0: Single Collision */ +}; + +/* XM_RX_LO_WM 16 bit r/w Receive Low Water Mark */ +/* XM_RX_HI_WM 16 bit r/w Receive High Water Mark */ +#define XM_RX_WM_MSK 0x03ff /* Bit 11.. 0: Rx FIFO Watermark bits */ + + +/* XM_DEV_ID 32 bit r/o Device ID Register */ +#define XM_DEV_OUI (0x00ffffffUL<<8) /* Bit 31..8: Device OUI */ +#define XM_DEV_REV (0x07L << 5) /* Bit 7..5: Chip Rev Num */ + + +/* XM_MODE 32 bit r/w Mode Register */ +enum { + XM_MD_ENA_REJ = 1<<26, /* Bit 26: Enable Frame Reject */ + XM_MD_SPOE_E = 1<<25, /* Bit 25: Send Pause on Edge */ + /* extern generated */ + XM_MD_TX_REP = 1<<24, /* Bit 24: Transmit Repeater Mode */ + XM_MD_SPOFF_I = 1<<23, /* Bit 23: Send Pause on FIFO full */ + /* intern generated */ + XM_MD_LE_STW = 1<<22, /* Bit 22: Rx Stat Word in Little Endian */ + XM_MD_TX_CONT = 1<<21, /* Bit 21: Send Continuous */ + XM_MD_TX_PAUSE = 1<<20, /* Bit 20: (sc) Send Pause Frame */ + XM_MD_ATS = 1<<19, /* Bit 19: Append Time Stamp */ + XM_MD_SPOL_I = 1<<18, /* Bit 18: Send Pause on Low */ + /* intern generated */ + XM_MD_SPOH_I = 1<<17, /* Bit 17: Send Pause on High */ + /* intern generated */ + XM_MD_CAP = 1<<16, /* Bit 16: Check Address Pair */ + XM_MD_ENA_HASH = 1<<15, /* Bit 15: Enable Hashing */ + XM_MD_CSA = 1<<14, /* Bit 14: Check Station Address */ + XM_MD_CAA = 1<<13, /* Bit 13: Check Address Array */ + XM_MD_RX_MCTRL = 1<<12, /* Bit 12: Rx MAC Control Frame */ + XM_MD_RX_RUNT = 1<<11, /* Bit 11: Rx Runt Frames */ + XM_MD_RX_IRLE = 1<<10, /* Bit 10: Rx in Range Len Err Frame */ + XM_MD_RX_LONG = 1<<9, /* Bit 9: Rx Long Frame */ + XM_MD_RX_CRCE = 1<<8, /* Bit 8: Rx CRC Error Frame */ + XM_MD_RX_ERR = 1<<7, /* Bit 7: Rx Error Frame */ + XM_MD_DIS_UC = 1<<6, /* Bit 6: Disable Rx Unicast */ + XM_MD_DIS_MC = 1<<5, /* Bit 5: Disable Rx Multicast */ + XM_MD_DIS_BC = 1<<4, /* Bit 4: Disable Rx Broadcast */ + XM_MD_ENA_PROM = 1<<3, /* Bit 3: Enable Promiscuous */ + XM_MD_ENA_BE = 1<<2, /* Bit 2: Enable Big Endian */ + XM_MD_FTF = 1<<1, /* Bit 1: (sc) Flush Tx FIFO */ + XM_MD_FRF = 1<<0, /* Bit 0: (sc) Flush Rx FIFO */ +}; + +#define XM_PAUSE_MODE (XM_MD_SPOE_E | XM_MD_SPOL_I | XM_MD_SPOH_I) +#define XM_DEF_MODE (XM_MD_RX_RUNT | XM_MD_RX_IRLE | XM_MD_RX_LONG |\ + XM_MD_RX_CRCE | XM_MD_RX_ERR | XM_MD_CSA) + +/* XM_STAT_CMD 16 bit r/w Statistics Command Register */ +enum { + XM_SC_SNP_RXC = 1<<5, /* Bit 5: (sc) Snap Rx Counters */ + XM_SC_SNP_TXC = 1<<4, /* Bit 4: (sc) Snap Tx Counters */ + XM_SC_CP_RXC = 1<<3, /* Bit 3: Copy Rx Counters Continuously */ + XM_SC_CP_TXC = 1<<2, /* Bit 2: Copy Tx Counters Continuously */ + XM_SC_CLR_RXC = 1<<1, /* Bit 1: (sc) Clear Rx Counters */ + XM_SC_CLR_TXC = 1<<0, /* Bit 0: (sc) Clear Tx Counters */ +}; + + +/* XM_RX_CNT_EV 32 bit r/o Rx Counter Event Register */ +/* XM_RX_EV_MSK 32 bit r/w Rx Counter Event Mask */ +enum { + XMR_MAX_SZ_OV = 1<<31, /* Bit 31: 1024-MaxSize Rx Cnt Ov*/ + XMR_1023B_OV = 1<<30, /* Bit 30: 512-1023Byte Rx Cnt Ov*/ + XMR_511B_OV = 1<<29, /* Bit 29: 256-511 Byte Rx Cnt Ov*/ + XMR_255B_OV = 1<<28, /* Bit 28: 128-255 Byte Rx Cnt Ov*/ + XMR_127B_OV = 1<<27, /* Bit 27: 65-127 Byte Rx Cnt Ov */ + XMR_64B_OV = 1<<26, /* Bit 26: 64 Byte Rx Cnt Ov */ + XMR_UTIL_OV = 1<<25, /* Bit 25: Rx Util Cnt Overflow */ + XMR_UTIL_UR = 1<<24, /* Bit 24: Rx Util Cnt Underrun */ + XMR_CEX_ERR_OV = 1<<23, /* Bit 23: CEXT Err Cnt Ov */ + XMR_FCS_ERR_OV = 1<<21, /* Bit 21: Rx FCS Error Cnt Ov */ + XMR_LNG_ERR_OV = 1<<20, /* Bit 20: Rx too Long Err Cnt Ov*/ + XMR_RUNT_OV = 1<<19, /* Bit 19: Runt Event Cnt Ov */ + XMR_SHT_ERR_OV = 1<<18, /* Bit 18: Rx Short Ev Err Cnt Ov*/ + XMR_SYM_ERR_OV = 1<<17, /* Bit 17: Rx Sym Err Cnt Ov */ + XMR_CAR_ERR_OV = 1<<15, /* Bit 15: Rx Carr Ev Err Cnt Ov */ + XMR_JAB_PKT_OV = 1<<14, /* Bit 14: Rx Jabb Packet Cnt Ov */ + XMR_FIFO_OV = 1<<13, /* Bit 13: Rx FIFO Ov Ev Cnt Ov */ + XMR_FRA_ERR_OV = 1<<12, /* Bit 12: Rx Framing Err Cnt Ov */ + XMR_FMISS_OV = 1<<11, /* Bit 11: Rx Missed Ev Cnt Ov */ + XMR_BURST = 1<<10, /* Bit 10: Rx Burst Event Cnt Ov */ + XMR_INV_MOC = 1<<9, /* Bit 9: Rx with inv. MAC OC Ov*/ + XMR_INV_MP = 1<<8, /* Bit 8: Rx inv Pause Frame Ov */ + XMR_MCTRL_OV = 1<<7, /* Bit 7: Rx MAC Ctrl-F Cnt Ov */ + XMR_MPAUSE_OV = 1<<6, /* Bit 6: Rx Pause MAC Ctrl-F Ov*/ + XMR_UC_OK_OV = 1<<5, /* Bit 5: Rx Unicast Frame CntOv*/ + XMR_MC_OK_OV = 1<<4, /* Bit 4: Rx Multicast Cnt Ov */ + XMR_BC_OK_OV = 1<<3, /* Bit 3: Rx Broadcast Cnt Ov */ + XMR_OK_LO_OV = 1<<2, /* Bit 2: Octets Rx OK Low CntOv*/ + XMR_OK_HI_OV = 1<<1, /* Bit 1: Octets Rx OK Hi Cnt Ov*/ + XMR_OK_OV = 1<<0, /* Bit 0: Frames Received Ok Ov */ +}; + +#define XMR_DEF_MSK (XMR_OK_LO_OV | XMR_OK_HI_OV) + +/* XM_TX_CNT_EV 32 bit r/o Tx Counter Event Register */ +/* XM_TX_EV_MSK 32 bit r/w Tx Counter Event Mask */ +enum { + XMT_MAX_SZ_OV = 1<<25, /* Bit 25: 1024-MaxSize Tx Cnt Ov*/ + XMT_1023B_OV = 1<<24, /* Bit 24: 512-1023Byte Tx Cnt Ov*/ + XMT_511B_OV = 1<<23, /* Bit 23: 256-511 Byte Tx Cnt Ov*/ + XMT_255B_OV = 1<<22, /* Bit 22: 128-255 Byte Tx Cnt Ov*/ + XMT_127B_OV = 1<<21, /* Bit 21: 65-127 Byte Tx Cnt Ov */ + XMT_64B_OV = 1<<20, /* Bit 20: 64 Byte Tx Cnt Ov */ + XMT_UTIL_OV = 1<<19, /* Bit 19: Tx Util Cnt Overflow */ + XMT_UTIL_UR = 1<<18, /* Bit 18: Tx Util Cnt Underrun */ + XMT_CS_ERR_OV = 1<<17, /* Bit 17: Tx Carr Sen Err Cnt Ov*/ + XMT_FIFO_UR_OV = 1<<16, /* Bit 16: Tx FIFO Ur Ev Cnt Ov */ + XMT_EX_DEF_OV = 1<<15, /* Bit 15: Tx Ex Deferall Cnt Ov */ + XMT_DEF = 1<<14, /* Bit 14: Tx Deferred Cnt Ov */ + XMT_LAT_COL_OV = 1<<13, /* Bit 13: Tx Late Col Cnt Ov */ + XMT_ABO_COL_OV = 1<<12, /* Bit 12: Tx abo dueto Ex Col Ov*/ + XMT_MUL_COL_OV = 1<<11, /* Bit 11: Tx Mult Col Cnt Ov */ + XMT_SNG_COL = 1<<10, /* Bit 10: Tx Single Col Cnt Ov */ + XMT_MCTRL_OV = 1<<9, /* Bit 9: Tx MAC Ctrl Counter Ov*/ + XMT_MPAUSE = 1<<8, /* Bit 8: Tx Pause MAC Ctrl-F Ov*/ + XMT_BURST = 1<<7, /* Bit 7: Tx Burst Event Cnt Ov */ + XMT_LONG = 1<<6, /* Bit 6: Tx Long Frame Cnt Ov */ + XMT_UC_OK_OV = 1<<5, /* Bit 5: Tx Unicast Cnt Ov */ + XMT_MC_OK_OV = 1<<4, /* Bit 4: Tx Multicast Cnt Ov */ + XMT_BC_OK_OV = 1<<3, /* Bit 3: Tx Broadcast Cnt Ov */ + XMT_OK_LO_OV = 1<<2, /* Bit 2: Octets Tx OK Low CntOv*/ + XMT_OK_HI_OV = 1<<1, /* Bit 1: Octets Tx OK Hi Cnt Ov*/ + XMT_OK_OV = 1<<0, /* Bit 0: Frames Tx Ok Ov */ +}; + +#define XMT_DEF_MSK (XMT_OK_LO_OV | XMT_OK_HI_OV) + +struct skge_rx_desc { + u32 control; + u32 next_offset; + u32 dma_lo; + u32 dma_hi; + u32 status; + u32 timestamp; + u16 csum2; + u16 csum1; + u16 csum2_start; + u16 csum1_start; +}; + +struct skge_tx_desc { + u32 control; + u32 next_offset; + u32 dma_lo; + u32 dma_hi; + u32 status; + u32 csum_offs; + u16 csum_write; + u16 csum_start; + u32 rsvd; +}; + +struct skge_element { + struct skge_element *next; + void *desc; + struct sk_buff *skb; + DEFINE_DMA_UNMAP_ADDR(mapaddr); + DEFINE_DMA_UNMAP_LEN(maplen); +}; + +struct skge_ring { + struct skge_element *to_clean; + struct skge_element *to_use; + struct skge_element *start; + unsigned long count; +}; + + +struct skge_hw { + void __iomem *regs; + struct pci_dev *pdev; + spinlock_t hw_lock; + u32 intr_mask; + struct net_device *dev[2]; + + u8 chip_id; + u8 chip_rev; + u8 copper; + u8 ports; + u8 phy_type; + + u32 ram_size; + u32 ram_offset; + u16 phy_addr; + spinlock_t phy_lock; + struct tasklet_struct phy_task; + + char irq_name[]; /* skge@pci:000:04:00.0 */ +}; + +enum pause_control { + FLOW_MODE_NONE = 1, /* No Flow-Control */ + FLOW_MODE_LOC_SEND = 2, /* Local station sends PAUSE */ + FLOW_MODE_SYMMETRIC = 3, /* Both stations may send PAUSE */ + FLOW_MODE_SYM_OR_REM = 4, /* Both stations may send PAUSE or + * just the remote station may send PAUSE + */ +}; + +enum pause_status { + FLOW_STAT_INDETERMINATED=0, /* indeterminated */ + FLOW_STAT_NONE, /* No Flow Control */ + FLOW_STAT_REM_SEND, /* Remote Station sends PAUSE */ + FLOW_STAT_LOC_SEND, /* Local station sends PAUSE */ + FLOW_STAT_SYMMETRIC, /* Both station may send PAUSE */ +}; + + +struct skge_port { + struct skge_hw *hw; + struct net_device *netdev; + struct napi_struct napi; + int port; + u32 msg_enable; + + struct skge_ring tx_ring; + + struct skge_ring rx_ring ____cacheline_aligned_in_smp; + unsigned int rx_buf_size; + + struct timer_list link_timer; + enum pause_control flow_control; + enum pause_status flow_status; + u8 blink_on; + u8 wol; + u8 autoneg; /* AUTONEG_ENABLE, AUTONEG_DISABLE */ + u8 duplex; /* DUPLEX_HALF, DUPLEX_FULL */ + u16 speed; /* SPEED_1000, SPEED_100, ... */ + u32 advertising; + + void *mem; /* PCI memory for rings */ + dma_addr_t dma; + unsigned long mem_size; +#ifdef CONFIG_SKGE_DEBUG + struct dentry *debugfs; +#endif +}; + + +/* Register accessor for memory mapped device */ +static inline u32 skge_read32(const struct skge_hw *hw, int reg) +{ + return readl(hw->regs + reg); +} + +static inline u16 skge_read16(const struct skge_hw *hw, int reg) +{ + return readw(hw->regs + reg); +} + +static inline u8 skge_read8(const struct skge_hw *hw, int reg) +{ + return readb(hw->regs + reg); +} + +static inline void skge_write32(const struct skge_hw *hw, int reg, u32 val) +{ + writel(val, hw->regs + reg); +} + +static inline void skge_write16(const struct skge_hw *hw, int reg, u16 val) +{ + writew(val, hw->regs + reg); +} + +static inline void skge_write8(const struct skge_hw *hw, int reg, u8 val) +{ + writeb(val, hw->regs + reg); +} + +/* MAC Related Registers inside the device. */ +#define SK_REG(port,reg) (((port)<<7)+(u16)(reg)) +#define SK_XMAC_REG(port, reg) \ + ((BASE_XMAC_1 + (port) * (BASE_XMAC_2 - BASE_XMAC_1)) | (reg) << 1) + +static inline u32 xm_read32(const struct skge_hw *hw, int port, int reg) +{ + u32 v; + v = skge_read16(hw, SK_XMAC_REG(port, reg)); + v |= (u32)skge_read16(hw, SK_XMAC_REG(port, reg+2)) << 16; + return v; +} + +static inline u16 xm_read16(const struct skge_hw *hw, int port, int reg) +{ + return skge_read16(hw, SK_XMAC_REG(port,reg)); +} + +static inline void xm_write32(const struct skge_hw *hw, int port, int r, u32 v) +{ + skge_write16(hw, SK_XMAC_REG(port,r), v & 0xffff); + skge_write16(hw, SK_XMAC_REG(port,r+2), v >> 16); +} + +static inline void xm_write16(const struct skge_hw *hw, int port, int r, u16 v) +{ + skge_write16(hw, SK_XMAC_REG(port,r), v); +} + +static inline void xm_outhash(const struct skge_hw *hw, int port, int reg, + const u8 *hash) +{ + xm_write16(hw, port, reg, (u16)hash[0] | ((u16)hash[1] << 8)); + xm_write16(hw, port, reg+2, (u16)hash[2] | ((u16)hash[3] << 8)); + xm_write16(hw, port, reg+4, (u16)hash[4] | ((u16)hash[5] << 8)); + xm_write16(hw, port, reg+6, (u16)hash[6] | ((u16)hash[7] << 8)); +} + +static inline void xm_outaddr(const struct skge_hw *hw, int port, int reg, + const u8 *addr) +{ + xm_write16(hw, port, reg, (u16)addr[0] | ((u16)addr[1] << 8)); + xm_write16(hw, port, reg+2, (u16)addr[2] | ((u16)addr[3] << 8)); + xm_write16(hw, port, reg+4, (u16)addr[4] | ((u16)addr[5] << 8)); +} + +#define SK_GMAC_REG(port,reg) \ + (BASE_GMAC_1 + (port) * (BASE_GMAC_2-BASE_GMAC_1) + (reg)) + +static inline u16 gma_read16(const struct skge_hw *hw, int port, int reg) +{ + return skge_read16(hw, SK_GMAC_REG(port,reg)); +} + +static inline u32 gma_read32(const struct skge_hw *hw, int port, int reg) +{ + return (u32) skge_read16(hw, SK_GMAC_REG(port,reg)) + | ((u32)skge_read16(hw, SK_GMAC_REG(port,reg+4)) << 16); +} + +static inline void gma_write16(const struct skge_hw *hw, int port, int r, u16 v) +{ + skge_write16(hw, SK_GMAC_REG(port,r), v); +} + +static inline void gma_set_addr(struct skge_hw *hw, int port, int reg, + const u8 *addr) +{ + gma_write16(hw, port, reg, (u16) addr[0] | ((u16) addr[1] << 8)); + gma_write16(hw, port, reg+4,(u16) addr[2] | ((u16) addr[3] << 8)); + gma_write16(hw, port, reg+8,(u16) addr[4] | ((u16) addr[5] << 8)); +} + +#endif diff --git a/drivers/net/ethernet/marvell/sky2.c b/drivers/net/ethernet/marvell/sky2.c new file mode 100644 index 000000000..ab33ba1c3 --- /dev/null +++ b/drivers/net/ethernet/marvell/sky2.c @@ -0,0 +1,5165 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * New driver for Marvell Yukon 2 chipset. + * Based on earlier sk98lin, and skge driver. + * + * This driver intentionally does not support all the features + * of the original driver such as link fail-over and link management because + * those should be done at higher levels. + * + * Copyright (C) 2005 Stephen Hemminger <shemminger@osdl.org> + */ + +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + +#include <linux/crc32.h> +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/netdevice.h> +#include <linux/dma-mapping.h> +#include <linux/etherdevice.h> +#include <linux/ethtool.h> +#include <linux/pci.h> +#include <linux/interrupt.h> +#include <linux/ip.h> +#include <linux/slab.h> +#include <net/ip.h> +#include <linux/tcp.h> +#include <linux/in.h> +#include <linux/delay.h> +#include <linux/workqueue.h> +#include <linux/if_vlan.h> +#include <linux/prefetch.h> +#include <linux/debugfs.h> +#include <linux/mii.h> +#include <linux/of_device.h> +#include <linux/of_net.h> +#include <linux/dmi.h> + +#include <asm/irq.h> + +#include "sky2.h" + +#define DRV_NAME "sky2" +#define DRV_VERSION "1.30" + +/* + * The Yukon II chipset takes 64 bit command blocks (called list elements) + * that are organized into three (receive, transmit, status) different rings + * similar to Tigon3. + */ + +#define RX_LE_SIZE 1024 +#define RX_LE_BYTES (RX_LE_SIZE*sizeof(struct sky2_rx_le)) +#define RX_MAX_PENDING (RX_LE_SIZE/6 - 2) +#define RX_DEF_PENDING RX_MAX_PENDING + +/* This is the worst case number of transmit list elements for a single skb: + * VLAN:GSO + CKSUM + Data + skb_frags * DMA + */ +#define MAX_SKB_TX_LE (2 + (sizeof(dma_addr_t)/sizeof(u32))*(MAX_SKB_FRAGS+1)) +#define TX_MIN_PENDING (MAX_SKB_TX_LE+1) +#define TX_MAX_PENDING 1024 +#define TX_DEF_PENDING 63 + +#define TX_WATCHDOG (5 * HZ) +#define PHY_RETRIES 1000 + +#define SKY2_EEPROM_MAGIC 0x9955aabb + +#define RING_NEXT(x, s) (((x)+1) & ((s)-1)) + +static const u32 default_msg = + NETIF_MSG_DRV | NETIF_MSG_PROBE | NETIF_MSG_LINK + | NETIF_MSG_TIMER | NETIF_MSG_TX_ERR | NETIF_MSG_RX_ERR + | NETIF_MSG_IFUP | NETIF_MSG_IFDOWN; + +static int debug = -1; /* defaults above */ +module_param(debug, int, 0); +MODULE_PARM_DESC(debug, "Debug level (0=none,...,16=all)"); + +static int copybreak __read_mostly = 128; +module_param(copybreak, int, 0); +MODULE_PARM_DESC(copybreak, "Receive copy threshold"); + +static int disable_msi = -1; +module_param(disable_msi, int, 0); +MODULE_PARM_DESC(disable_msi, "Disable Message Signaled Interrupt (MSI)"); + +static int legacy_pme = 0; +module_param(legacy_pme, int, 0); +MODULE_PARM_DESC(legacy_pme, "Legacy power management"); + +static const struct pci_device_id sky2_id_table[] = { + { PCI_DEVICE(PCI_VENDOR_ID_SYSKONNECT, 0x9000) }, /* SK-9Sxx */ + { PCI_DEVICE(PCI_VENDOR_ID_SYSKONNECT, 0x9E00) }, /* SK-9Exx */ + { PCI_DEVICE(PCI_VENDOR_ID_SYSKONNECT, 0x9E01) }, /* SK-9E21M */ + { PCI_DEVICE(PCI_VENDOR_ID_DLINK, 0x4b00) }, /* DGE-560T */ + { PCI_DEVICE(PCI_VENDOR_ID_DLINK, 0x4001) }, /* DGE-550SX */ + { PCI_DEVICE(PCI_VENDOR_ID_DLINK, 0x4B02) }, /* DGE-560SX */ + { PCI_DEVICE(PCI_VENDOR_ID_DLINK, 0x4B03) }, /* DGE-550T */ + { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4340) }, /* 88E8021 */ + { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4341) }, /* 88E8022 */ + { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4342) }, /* 88E8061 */ + { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4343) }, /* 88E8062 */ + { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4344) }, /* 88E8021 */ + { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4345) }, /* 88E8022 */ + { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4346) }, /* 88E8061 */ + { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4347) }, /* 88E8062 */ + { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4350) }, /* 88E8035 */ + { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4351) }, /* 88E8036 */ + { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4352) }, /* 88E8038 */ + { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4353) }, /* 88E8039 */ + { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4354) }, /* 88E8040 */ + { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4355) }, /* 88E8040T */ + { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4356) }, /* 88EC033 */ + { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4357) }, /* 88E8042 */ + { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x435A) }, /* 88E8048 */ + { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4360) }, /* 88E8052 */ + { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4361) }, /* 88E8050 */ + { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4362) }, /* 88E8053 */ + { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4363) }, /* 88E8055 */ + { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4364) }, /* 88E8056 */ + { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4365) }, /* 88E8070 */ + { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4366) }, /* 88EC036 */ + { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4367) }, /* 88EC032 */ + { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4368) }, /* 88EC034 */ + { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4369) }, /* 88EC042 */ + { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x436A) }, /* 88E8058 */ + { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x436B) }, /* 88E8071 */ + { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x436C) }, /* 88E8072 */ + { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x436D) }, /* 88E8055 */ + { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4370) }, /* 88E8075 */ + { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4380) }, /* 88E8057 */ + { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4381) }, /* 88E8059 */ + { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4382) }, /* 88E8079 */ + { 0 } +}; + +MODULE_DEVICE_TABLE(pci, sky2_id_table); + +/* Avoid conditionals by using array */ +static const unsigned txqaddr[] = { Q_XA1, Q_XA2 }; +static const unsigned rxqaddr[] = { Q_R1, Q_R2 }; +static const u32 portirq_msk[] = { Y2_IS_PORT_1, Y2_IS_PORT_2 }; + +static void sky2_set_multicast(struct net_device *dev); +static irqreturn_t sky2_intr(int irq, void *dev_id); + +/* Access to PHY via serial interconnect */ +static int gm_phy_write(struct sky2_hw *hw, unsigned port, u16 reg, u16 val) +{ + int i; + + gma_write16(hw, port, GM_SMI_DATA, val); + gma_write16(hw, port, GM_SMI_CTRL, + GM_SMI_CT_PHY_AD(PHY_ADDR_MARV) | GM_SMI_CT_REG_AD(reg)); + + for (i = 0; i < PHY_RETRIES; i++) { + u16 ctrl = gma_read16(hw, port, GM_SMI_CTRL); + if (ctrl == 0xffff) + goto io_error; + + if (!(ctrl & GM_SMI_CT_BUSY)) + return 0; + + udelay(10); + } + + dev_warn(&hw->pdev->dev, "%s: phy write timeout\n", hw->dev[port]->name); + return -ETIMEDOUT; + +io_error: + dev_err(&hw->pdev->dev, "%s: phy I/O error\n", hw->dev[port]->name); + return -EIO; +} + +static int __gm_phy_read(struct sky2_hw *hw, unsigned port, u16 reg, u16 *val) +{ + int i; + + gma_write16(hw, port, GM_SMI_CTRL, GM_SMI_CT_PHY_AD(PHY_ADDR_MARV) + | GM_SMI_CT_REG_AD(reg) | GM_SMI_CT_OP_RD); + + for (i = 0; i < PHY_RETRIES; i++) { + u16 ctrl = gma_read16(hw, port, GM_SMI_CTRL); + if (ctrl == 0xffff) + goto io_error; + + if (ctrl & GM_SMI_CT_RD_VAL) { + *val = gma_read16(hw, port, GM_SMI_DATA); + return 0; + } + + udelay(10); + } + + dev_warn(&hw->pdev->dev, "%s: phy read timeout\n", hw->dev[port]->name); + return -ETIMEDOUT; +io_error: + dev_err(&hw->pdev->dev, "%s: phy I/O error\n", hw->dev[port]->name); + return -EIO; +} + +static inline u16 gm_phy_read(struct sky2_hw *hw, unsigned port, u16 reg) +{ + u16 v = 0; + __gm_phy_read(hw, port, reg, &v); + return v; +} + + +static void sky2_power_on(struct sky2_hw *hw) +{ + /* switch power to VCC (WA for VAUX problem) */ + sky2_write8(hw, B0_POWER_CTRL, + PC_VAUX_ENA | PC_VCC_ENA | PC_VAUX_OFF | PC_VCC_ON); + + /* disable Core Clock Division, */ + sky2_write32(hw, B2_Y2_CLK_CTRL, Y2_CLK_DIV_DIS); + + if (hw->chip_id == CHIP_ID_YUKON_XL && hw->chip_rev > CHIP_REV_YU_XL_A1) + /* enable bits are inverted */ + sky2_write8(hw, B2_Y2_CLK_GATE, + Y2_PCI_CLK_LNK1_DIS | Y2_COR_CLK_LNK1_DIS | + Y2_CLK_GAT_LNK1_DIS | Y2_PCI_CLK_LNK2_DIS | + Y2_COR_CLK_LNK2_DIS | Y2_CLK_GAT_LNK2_DIS); + else + sky2_write8(hw, B2_Y2_CLK_GATE, 0); + + if (hw->flags & SKY2_HW_ADV_POWER_CTL) { + u32 reg; + + sky2_pci_write32(hw, PCI_DEV_REG3, 0); + + reg = sky2_pci_read32(hw, PCI_DEV_REG4); + /* set all bits to 0 except bits 15..12 and 8 */ + reg &= P_ASPM_CONTROL_MSK; + sky2_pci_write32(hw, PCI_DEV_REG4, reg); + + reg = sky2_pci_read32(hw, PCI_DEV_REG5); + /* set all bits to 0 except bits 28 & 27 */ + reg &= P_CTL_TIM_VMAIN_AV_MSK; + sky2_pci_write32(hw, PCI_DEV_REG5, reg); + + sky2_pci_write32(hw, PCI_CFG_REG_1, 0); + + sky2_write16(hw, B0_CTST, Y2_HW_WOL_ON); + + /* Enable workaround for dev 4.107 on Yukon-Ultra & Extreme */ + reg = sky2_read32(hw, B2_GP_IO); + reg |= GLB_GPIO_STAT_RACE_DIS; + sky2_write32(hw, B2_GP_IO, reg); + + sky2_read32(hw, B2_GP_IO); + } + + /* Turn on "driver loaded" LED */ + sky2_write16(hw, B0_CTST, Y2_LED_STAT_ON); +} + +static void sky2_power_aux(struct sky2_hw *hw) +{ + if (hw->chip_id == CHIP_ID_YUKON_XL && hw->chip_rev > CHIP_REV_YU_XL_A1) + sky2_write8(hw, B2_Y2_CLK_GATE, 0); + else + /* enable bits are inverted */ + sky2_write8(hw, B2_Y2_CLK_GATE, + Y2_PCI_CLK_LNK1_DIS | Y2_COR_CLK_LNK1_DIS | + Y2_CLK_GAT_LNK1_DIS | Y2_PCI_CLK_LNK2_DIS | + Y2_COR_CLK_LNK2_DIS | Y2_CLK_GAT_LNK2_DIS); + + /* switch power to VAUX if supported and PME from D3cold */ + if ( (sky2_read32(hw, B0_CTST) & Y2_VAUX_AVAIL) && + pci_pme_capable(hw->pdev, PCI_D3cold)) + sky2_write8(hw, B0_POWER_CTRL, + (PC_VAUX_ENA | PC_VCC_ENA | + PC_VAUX_ON | PC_VCC_OFF)); + + /* turn off "driver loaded LED" */ + sky2_write16(hw, B0_CTST, Y2_LED_STAT_OFF); +} + +static void sky2_gmac_reset(struct sky2_hw *hw, unsigned port) +{ + u16 reg; + + /* disable all GMAC IRQ's */ + sky2_write8(hw, SK_REG(port, GMAC_IRQ_MSK), 0); + + gma_write16(hw, port, GM_MC_ADDR_H1, 0); /* clear MC hash */ + gma_write16(hw, port, GM_MC_ADDR_H2, 0); + gma_write16(hw, port, GM_MC_ADDR_H3, 0); + gma_write16(hw, port, GM_MC_ADDR_H4, 0); + + reg = gma_read16(hw, port, GM_RX_CTRL); + reg |= GM_RXCR_UCF_ENA | GM_RXCR_MCF_ENA; + gma_write16(hw, port, GM_RX_CTRL, reg); +} + +/* flow control to advertise bits */ +static const u16 copper_fc_adv[] = { + [FC_NONE] = 0, + [FC_TX] = PHY_M_AN_ASP, + [FC_RX] = PHY_M_AN_PC, + [FC_BOTH] = PHY_M_AN_PC | PHY_M_AN_ASP, +}; + +/* flow control to advertise bits when using 1000BaseX */ +static const u16 fiber_fc_adv[] = { + [FC_NONE] = PHY_M_P_NO_PAUSE_X, + [FC_TX] = PHY_M_P_ASYM_MD_X, + [FC_RX] = PHY_M_P_SYM_MD_X, + [FC_BOTH] = PHY_M_P_BOTH_MD_X, +}; + +/* flow control to GMA disable bits */ +static const u16 gm_fc_disable[] = { + [FC_NONE] = GM_GPCR_FC_RX_DIS | GM_GPCR_FC_TX_DIS, + [FC_TX] = GM_GPCR_FC_RX_DIS, + [FC_RX] = GM_GPCR_FC_TX_DIS, + [FC_BOTH] = 0, +}; + + +static void sky2_phy_init(struct sky2_hw *hw, unsigned port) +{ + struct sky2_port *sky2 = netdev_priv(hw->dev[port]); + u16 ctrl, ct1000, adv, pg, ledctrl, ledover, reg; + + if ( (sky2->flags & SKY2_FLAG_AUTO_SPEED) && + !(hw->flags & SKY2_HW_NEWER_PHY)) { + u16 ectrl = gm_phy_read(hw, port, PHY_MARV_EXT_CTRL); + + ectrl &= ~(PHY_M_EC_M_DSC_MSK | PHY_M_EC_S_DSC_MSK | + PHY_M_EC_MAC_S_MSK); + ectrl |= PHY_M_EC_MAC_S(MAC_TX_CLK_25_MHZ); + + /* on PHY 88E1040 Rev.D0 (and newer) downshift control changed */ + if (hw->chip_id == CHIP_ID_YUKON_EC) + /* set downshift counter to 3x and enable downshift */ + ectrl |= PHY_M_EC_DSC_2(2) | PHY_M_EC_DOWN_S_ENA; + else + /* set master & slave downshift counter to 1x */ + ectrl |= PHY_M_EC_M_DSC(0) | PHY_M_EC_S_DSC(1); + + gm_phy_write(hw, port, PHY_MARV_EXT_CTRL, ectrl); + } + + ctrl = gm_phy_read(hw, port, PHY_MARV_PHY_CTRL); + if (sky2_is_copper(hw)) { + if (!(hw->flags & SKY2_HW_GIGABIT)) { + /* enable automatic crossover */ + ctrl |= PHY_M_PC_MDI_XMODE(PHY_M_PC_ENA_AUTO) >> 1; + + if (hw->chip_id == CHIP_ID_YUKON_FE_P && + hw->chip_rev == CHIP_REV_YU_FE2_A0) { + u16 spec; + + /* Enable Class A driver for FE+ A0 */ + spec = gm_phy_read(hw, port, PHY_MARV_FE_SPEC_2); + spec |= PHY_M_FESC_SEL_CL_A; + gm_phy_write(hw, port, PHY_MARV_FE_SPEC_2, spec); + } + } else { + /* disable energy detect */ + ctrl &= ~PHY_M_PC_EN_DET_MSK; + + /* enable automatic crossover */ + ctrl |= PHY_M_PC_MDI_XMODE(PHY_M_PC_ENA_AUTO); + + /* downshift on PHY 88E1112 and 88E1149 is changed */ + if ( (sky2->flags & SKY2_FLAG_AUTO_SPEED) && + (hw->flags & SKY2_HW_NEWER_PHY)) { + /* set downshift counter to 3x and enable downshift */ + ctrl &= ~PHY_M_PC_DSC_MSK; + ctrl |= PHY_M_PC_DSC(2) | PHY_M_PC_DOWN_S_ENA; + } + } + } else { + /* workaround for deviation #4.88 (CRC errors) */ + /* disable Automatic Crossover */ + + ctrl &= ~PHY_M_PC_MDIX_MSK; + } + + gm_phy_write(hw, port, PHY_MARV_PHY_CTRL, ctrl); + + /* special setup for PHY 88E1112 Fiber */ + if (hw->chip_id == CHIP_ID_YUKON_XL && (hw->flags & SKY2_HW_FIBRE_PHY)) { + pg = gm_phy_read(hw, port, PHY_MARV_EXT_ADR); + + /* Fiber: select 1000BASE-X only mode MAC Specific Ctrl Reg. */ + gm_phy_write(hw, port, PHY_MARV_EXT_ADR, 2); + ctrl = gm_phy_read(hw, port, PHY_MARV_PHY_CTRL); + ctrl &= ~PHY_M_MAC_MD_MSK; + ctrl |= PHY_M_MAC_MODE_SEL(PHY_M_MAC_MD_1000BX); + gm_phy_write(hw, port, PHY_MARV_PHY_CTRL, ctrl); + + if (hw->pmd_type == 'P') { + /* select page 1 to access Fiber registers */ + gm_phy_write(hw, port, PHY_MARV_EXT_ADR, 1); + + /* for SFP-module set SIGDET polarity to low */ + ctrl = gm_phy_read(hw, port, PHY_MARV_PHY_CTRL); + ctrl |= PHY_M_FIB_SIGD_POL; + gm_phy_write(hw, port, PHY_MARV_PHY_CTRL, ctrl); + } + + gm_phy_write(hw, port, PHY_MARV_EXT_ADR, pg); + } + + ctrl = PHY_CT_RESET; + ct1000 = 0; + adv = PHY_AN_CSMA; + reg = 0; + + if (sky2->flags & SKY2_FLAG_AUTO_SPEED) { + if (sky2_is_copper(hw)) { + if (sky2->advertising & ADVERTISED_1000baseT_Full) + ct1000 |= PHY_M_1000C_AFD; + if (sky2->advertising & ADVERTISED_1000baseT_Half) + ct1000 |= PHY_M_1000C_AHD; + if (sky2->advertising & ADVERTISED_100baseT_Full) + adv |= PHY_M_AN_100_FD; + if (sky2->advertising & ADVERTISED_100baseT_Half) + adv |= PHY_M_AN_100_HD; + if (sky2->advertising & ADVERTISED_10baseT_Full) + adv |= PHY_M_AN_10_FD; + if (sky2->advertising & ADVERTISED_10baseT_Half) + adv |= PHY_M_AN_10_HD; + + } else { /* special defines for FIBER (88E1040S only) */ + if (sky2->advertising & ADVERTISED_1000baseT_Full) + adv |= PHY_M_AN_1000X_AFD; + if (sky2->advertising & ADVERTISED_1000baseT_Half) + adv |= PHY_M_AN_1000X_AHD; + } + + /* Restart Auto-negotiation */ + ctrl |= PHY_CT_ANE | PHY_CT_RE_CFG; + } else { + /* forced speed/duplex settings */ + ct1000 = PHY_M_1000C_MSE; + + /* Disable auto update for duplex flow control and duplex */ + reg |= GM_GPCR_AU_DUP_DIS | GM_GPCR_AU_SPD_DIS; + + switch (sky2->speed) { + case SPEED_1000: + ctrl |= PHY_CT_SP1000; + reg |= GM_GPCR_SPEED_1000; + break; + case SPEED_100: + ctrl |= PHY_CT_SP100; + reg |= GM_GPCR_SPEED_100; + break; + } + + if (sky2->duplex == DUPLEX_FULL) { + reg |= GM_GPCR_DUP_FULL; + ctrl |= PHY_CT_DUP_MD; + } else if (sky2->speed < SPEED_1000) + sky2->flow_mode = FC_NONE; + } + + if (sky2->flags & SKY2_FLAG_AUTO_PAUSE) { + if (sky2_is_copper(hw)) + adv |= copper_fc_adv[sky2->flow_mode]; + else + adv |= fiber_fc_adv[sky2->flow_mode]; + } else { + reg |= GM_GPCR_AU_FCT_DIS; + reg |= gm_fc_disable[sky2->flow_mode]; + + /* Forward pause packets to GMAC? */ + if (sky2->flow_mode & FC_RX) + sky2_write8(hw, SK_REG(port, GMAC_CTRL), GMC_PAUSE_ON); + else + sky2_write8(hw, SK_REG(port, GMAC_CTRL), GMC_PAUSE_OFF); + } + + gma_write16(hw, port, GM_GP_CTRL, reg); + + if (hw->flags & SKY2_HW_GIGABIT) + gm_phy_write(hw, port, PHY_MARV_1000T_CTRL, ct1000); + + gm_phy_write(hw, port, PHY_MARV_AUNE_ADV, adv); + gm_phy_write(hw, port, PHY_MARV_CTRL, ctrl); + + /* Setup Phy LED's */ + ledctrl = PHY_M_LED_PULS_DUR(PULS_170MS); + ledover = 0; + + switch (hw->chip_id) { + case CHIP_ID_YUKON_FE: + /* on 88E3082 these bits are at 11..9 (shifted left) */ + ledctrl |= PHY_M_LED_BLINK_RT(BLINK_84MS) << 1; + + ctrl = gm_phy_read(hw, port, PHY_MARV_FE_LED_PAR); + + /* delete ACT LED control bits */ + ctrl &= ~PHY_M_FELP_LED1_MSK; + /* change ACT LED control to blink mode */ + ctrl |= PHY_M_FELP_LED1_CTRL(LED_PAR_CTRL_ACT_BL); + gm_phy_write(hw, port, PHY_MARV_FE_LED_PAR, ctrl); + break; + + case CHIP_ID_YUKON_FE_P: + /* Enable Link Partner Next Page */ + ctrl = gm_phy_read(hw, port, PHY_MARV_PHY_CTRL); + ctrl |= PHY_M_PC_ENA_LIP_NP; + + /* disable Energy Detect and enable scrambler */ + ctrl &= ~(PHY_M_PC_ENA_ENE_DT | PHY_M_PC_DIS_SCRAMB); + gm_phy_write(hw, port, PHY_MARV_PHY_CTRL, ctrl); + + /* set LED2 -> ACT, LED1 -> LINK, LED0 -> SPEED */ + ctrl = PHY_M_FELP_LED2_CTRL(LED_PAR_CTRL_ACT_BL) | + PHY_M_FELP_LED1_CTRL(LED_PAR_CTRL_LINK) | + PHY_M_FELP_LED0_CTRL(LED_PAR_CTRL_SPEED); + + gm_phy_write(hw, port, PHY_MARV_FE_LED_PAR, ctrl); + break; + + case CHIP_ID_YUKON_XL: + pg = gm_phy_read(hw, port, PHY_MARV_EXT_ADR); + + /* select page 3 to access LED control register */ + gm_phy_write(hw, port, PHY_MARV_EXT_ADR, 3); + + /* set LED Function Control register */ + gm_phy_write(hw, port, PHY_MARV_PHY_CTRL, + (PHY_M_LEDC_LOS_CTRL(1) | /* LINK/ACT */ + PHY_M_LEDC_INIT_CTRL(7) | /* 10 Mbps */ + PHY_M_LEDC_STA1_CTRL(7) | /* 100 Mbps */ + PHY_M_LEDC_STA0_CTRL(7))); /* 1000 Mbps */ + + /* set Polarity Control register */ + gm_phy_write(hw, port, PHY_MARV_PHY_STAT, + (PHY_M_POLC_LS1_P_MIX(4) | + PHY_M_POLC_IS0_P_MIX(4) | + PHY_M_POLC_LOS_CTRL(2) | + PHY_M_POLC_INIT_CTRL(2) | + PHY_M_POLC_STA1_CTRL(2) | + PHY_M_POLC_STA0_CTRL(2))); + + /* restore page register */ + gm_phy_write(hw, port, PHY_MARV_EXT_ADR, pg); + break; + + case CHIP_ID_YUKON_EC_U: + case CHIP_ID_YUKON_EX: + case CHIP_ID_YUKON_SUPR: + pg = gm_phy_read(hw, port, PHY_MARV_EXT_ADR); + + /* select page 3 to access LED control register */ + gm_phy_write(hw, port, PHY_MARV_EXT_ADR, 3); + + /* set LED Function Control register */ + gm_phy_write(hw, port, PHY_MARV_PHY_CTRL, + (PHY_M_LEDC_LOS_CTRL(1) | /* LINK/ACT */ + PHY_M_LEDC_INIT_CTRL(8) | /* 10 Mbps */ + PHY_M_LEDC_STA1_CTRL(7) | /* 100 Mbps */ + PHY_M_LEDC_STA0_CTRL(7)));/* 1000 Mbps */ + + /* set Blink Rate in LED Timer Control Register */ + gm_phy_write(hw, port, PHY_MARV_INT_MASK, + ledctrl | PHY_M_LED_BLINK_RT(BLINK_84MS)); + /* restore page register */ + gm_phy_write(hw, port, PHY_MARV_EXT_ADR, pg); + break; + + default: + /* set Tx LED (LED_TX) to blink mode on Rx OR Tx activity */ + ledctrl |= PHY_M_LED_BLINK_RT(BLINK_84MS) | PHY_M_LEDC_TX_CTRL; + + /* turn off the Rx LED (LED_RX) */ + ledover |= PHY_M_LED_MO_RX(MO_LED_OFF); + } + + if (hw->chip_id == CHIP_ID_YUKON_EC_U || hw->chip_id == CHIP_ID_YUKON_UL_2) { + /* apply fixes in PHY AFE */ + gm_phy_write(hw, port, PHY_MARV_EXT_ADR, 255); + + /* increase differential signal amplitude in 10BASE-T */ + gm_phy_write(hw, port, 0x18, 0xaa99); + gm_phy_write(hw, port, 0x17, 0x2011); + + if (hw->chip_id == CHIP_ID_YUKON_EC_U) { + /* fix for IEEE A/B Symmetry failure in 1000BASE-T */ + gm_phy_write(hw, port, 0x18, 0xa204); + gm_phy_write(hw, port, 0x17, 0x2002); + } + + /* set page register to 0 */ + gm_phy_write(hw, port, PHY_MARV_EXT_ADR, 0); + } else if (hw->chip_id == CHIP_ID_YUKON_FE_P && + hw->chip_rev == CHIP_REV_YU_FE2_A0) { + /* apply workaround for integrated resistors calibration */ + gm_phy_write(hw, port, PHY_MARV_PAGE_ADDR, 17); + gm_phy_write(hw, port, PHY_MARV_PAGE_DATA, 0x3f60); + } else if (hw->chip_id == CHIP_ID_YUKON_OPT && hw->chip_rev == 0) { + /* apply fixes in PHY AFE */ + gm_phy_write(hw, port, PHY_MARV_EXT_ADR, 0x00ff); + + /* apply RDAC termination workaround */ + gm_phy_write(hw, port, 24, 0x2800); + gm_phy_write(hw, port, 23, 0x2001); + + /* set page register back to 0 */ + gm_phy_write(hw, port, PHY_MARV_EXT_ADR, 0); + } else if (hw->chip_id != CHIP_ID_YUKON_EX && + hw->chip_id < CHIP_ID_YUKON_SUPR) { + /* no effect on Yukon-XL */ + gm_phy_write(hw, port, PHY_MARV_LED_CTRL, ledctrl); + + if (!(sky2->flags & SKY2_FLAG_AUTO_SPEED) || + sky2->speed == SPEED_100) { + /* turn on 100 Mbps LED (LED_LINK100) */ + ledover |= PHY_M_LED_MO_100(MO_LED_ON); + } + + if (ledover) + gm_phy_write(hw, port, PHY_MARV_LED_OVER, ledover); + + } else if (hw->chip_id == CHIP_ID_YUKON_PRM && + (sky2_read8(hw, B2_MAC_CFG) & 0xf) == 0x7) { + int i; + /* This a phy register setup workaround copied from vendor driver. */ + static const struct { + u16 reg, val; + } eee_afe[] = { + { 0x156, 0x58ce }, + { 0x153, 0x99eb }, + { 0x141, 0x8064 }, + /* { 0x155, 0x130b },*/ + { 0x000, 0x0000 }, + { 0x151, 0x8433 }, + { 0x14b, 0x8c44 }, + { 0x14c, 0x0f90 }, + { 0x14f, 0x39aa }, + /* { 0x154, 0x2f39 },*/ + { 0x14d, 0xba33 }, + { 0x144, 0x0048 }, + { 0x152, 0x2010 }, + /* { 0x158, 0x1223 },*/ + { 0x140, 0x4444 }, + { 0x154, 0x2f3b }, + { 0x158, 0xb203 }, + { 0x157, 0x2029 }, + }; + + /* Start Workaround for OptimaEEE Rev.Z0 */ + gm_phy_write(hw, port, PHY_MARV_EXT_ADR, 0x00fb); + + gm_phy_write(hw, port, 1, 0x4099); + gm_phy_write(hw, port, 3, 0x1120); + gm_phy_write(hw, port, 11, 0x113c); + gm_phy_write(hw, port, 14, 0x8100); + gm_phy_write(hw, port, 15, 0x112a); + gm_phy_write(hw, port, 17, 0x1008); + + gm_phy_write(hw, port, PHY_MARV_EXT_ADR, 0x00fc); + gm_phy_write(hw, port, 1, 0x20b0); + + gm_phy_write(hw, port, PHY_MARV_EXT_ADR, 0x00ff); + + for (i = 0; i < ARRAY_SIZE(eee_afe); i++) { + /* apply AFE settings */ + gm_phy_write(hw, port, 17, eee_afe[i].val); + gm_phy_write(hw, port, 16, eee_afe[i].reg | 1u<<13); + } + + /* End Workaround for OptimaEEE */ + gm_phy_write(hw, port, PHY_MARV_EXT_ADR, 0); + + /* Enable 10Base-Te (EEE) */ + if (hw->chip_id >= CHIP_ID_YUKON_PRM) { + reg = gm_phy_read(hw, port, PHY_MARV_EXT_CTRL); + gm_phy_write(hw, port, PHY_MARV_EXT_CTRL, + reg | PHY_M_10B_TE_ENABLE); + } + } + + /* Enable phy interrupt on auto-negotiation complete (or link up) */ + if (sky2->flags & SKY2_FLAG_AUTO_SPEED) + gm_phy_write(hw, port, PHY_MARV_INT_MASK, PHY_M_IS_AN_COMPL); + else + gm_phy_write(hw, port, PHY_MARV_INT_MASK, PHY_M_DEF_MSK); +} + +static const u32 phy_power[] = { PCI_Y2_PHY1_POWD, PCI_Y2_PHY2_POWD }; +static const u32 coma_mode[] = { PCI_Y2_PHY1_COMA, PCI_Y2_PHY2_COMA }; + +static void sky2_phy_power_up(struct sky2_hw *hw, unsigned port) +{ + u32 reg1; + + sky2_write8(hw, B2_TST_CTRL1, TST_CFG_WRITE_ON); + reg1 = sky2_pci_read32(hw, PCI_DEV_REG1); + reg1 &= ~phy_power[port]; + + if (hw->chip_id == CHIP_ID_YUKON_XL && hw->chip_rev > CHIP_REV_YU_XL_A1) + reg1 |= coma_mode[port]; + + sky2_pci_write32(hw, PCI_DEV_REG1, reg1); + sky2_write8(hw, B2_TST_CTRL1, TST_CFG_WRITE_OFF); + sky2_pci_read32(hw, PCI_DEV_REG1); + + if (hw->chip_id == CHIP_ID_YUKON_FE) + gm_phy_write(hw, port, PHY_MARV_CTRL, PHY_CT_ANE); + else if (hw->flags & SKY2_HW_ADV_POWER_CTL) + sky2_write8(hw, SK_REG(port, GPHY_CTRL), GPC_RST_CLR); +} + +static void sky2_phy_power_down(struct sky2_hw *hw, unsigned port) +{ + u32 reg1; + u16 ctrl; + + /* release GPHY Control reset */ + sky2_write8(hw, SK_REG(port, GPHY_CTRL), GPC_RST_CLR); + + /* release GMAC reset */ + sky2_write8(hw, SK_REG(port, GMAC_CTRL), GMC_RST_CLR); + + if (hw->flags & SKY2_HW_NEWER_PHY) { + /* select page 2 to access MAC control register */ + gm_phy_write(hw, port, PHY_MARV_EXT_ADR, 2); + + ctrl = gm_phy_read(hw, port, PHY_MARV_PHY_CTRL); + /* allow GMII Power Down */ + ctrl &= ~PHY_M_MAC_GMIF_PUP; + gm_phy_write(hw, port, PHY_MARV_PHY_CTRL, ctrl); + + /* set page register back to 0 */ + gm_phy_write(hw, port, PHY_MARV_EXT_ADR, 0); + } + + /* setup General Purpose Control Register */ + gma_write16(hw, port, GM_GP_CTRL, + GM_GPCR_FL_PASS | GM_GPCR_SPEED_100 | + GM_GPCR_AU_DUP_DIS | GM_GPCR_AU_FCT_DIS | + GM_GPCR_AU_SPD_DIS); + + if (hw->chip_id != CHIP_ID_YUKON_EC) { + if (hw->chip_id == CHIP_ID_YUKON_EC_U) { + /* select page 2 to access MAC control register */ + gm_phy_write(hw, port, PHY_MARV_EXT_ADR, 2); + + ctrl = gm_phy_read(hw, port, PHY_MARV_PHY_CTRL); + /* enable Power Down */ + ctrl |= PHY_M_PC_POW_D_ENA; + gm_phy_write(hw, port, PHY_MARV_PHY_CTRL, ctrl); + + /* set page register back to 0 */ + gm_phy_write(hw, port, PHY_MARV_EXT_ADR, 0); + } + + /* set IEEE compatible Power Down Mode (dev. #4.99) */ + gm_phy_write(hw, port, PHY_MARV_CTRL, PHY_CT_PDOWN); + } + + sky2_write8(hw, B2_TST_CTRL1, TST_CFG_WRITE_ON); + reg1 = sky2_pci_read32(hw, PCI_DEV_REG1); + reg1 |= phy_power[port]; /* set PHY to PowerDown/COMA Mode */ + sky2_pci_write32(hw, PCI_DEV_REG1, reg1); + sky2_write8(hw, B2_TST_CTRL1, TST_CFG_WRITE_OFF); +} + +/* configure IPG according to used link speed */ +static void sky2_set_ipg(struct sky2_port *sky2) +{ + u16 reg; + + reg = gma_read16(sky2->hw, sky2->port, GM_SERIAL_MODE); + reg &= ~GM_SMOD_IPG_MSK; + if (sky2->speed > SPEED_100) + reg |= IPG_DATA_VAL(IPG_DATA_DEF_1000); + else + reg |= IPG_DATA_VAL(IPG_DATA_DEF_10_100); + gma_write16(sky2->hw, sky2->port, GM_SERIAL_MODE, reg); +} + +/* Enable Rx/Tx */ +static void sky2_enable_rx_tx(struct sky2_port *sky2) +{ + struct sky2_hw *hw = sky2->hw; + unsigned port = sky2->port; + u16 reg; + + reg = gma_read16(hw, port, GM_GP_CTRL); + reg |= GM_GPCR_RX_ENA | GM_GPCR_TX_ENA; + gma_write16(hw, port, GM_GP_CTRL, reg); +} + +/* Force a renegotiation */ +static void sky2_phy_reinit(struct sky2_port *sky2) +{ + spin_lock_bh(&sky2->phy_lock); + sky2_phy_init(sky2->hw, sky2->port); + sky2_enable_rx_tx(sky2); + spin_unlock_bh(&sky2->phy_lock); +} + +/* Put device in state to listen for Wake On Lan */ +static void sky2_wol_init(struct sky2_port *sky2) +{ + struct sky2_hw *hw = sky2->hw; + unsigned port = sky2->port; + enum flow_control save_mode; + u16 ctrl; + + /* Bring hardware out of reset */ + sky2_write16(hw, B0_CTST, CS_RST_CLR); + sky2_write16(hw, SK_REG(port, GMAC_LINK_CTRL), GMLC_RST_CLR); + + sky2_write8(hw, SK_REG(port, GPHY_CTRL), GPC_RST_CLR); + sky2_write8(hw, SK_REG(port, GMAC_CTRL), GMC_RST_CLR); + + /* Force to 10/100 + * sky2_reset will re-enable on resume + */ + save_mode = sky2->flow_mode; + ctrl = sky2->advertising; + + sky2->advertising &= ~(ADVERTISED_1000baseT_Half|ADVERTISED_1000baseT_Full); + sky2->flow_mode = FC_NONE; + + spin_lock_bh(&sky2->phy_lock); + sky2_phy_power_up(hw, port); + sky2_phy_init(hw, port); + spin_unlock_bh(&sky2->phy_lock); + + sky2->flow_mode = save_mode; + sky2->advertising = ctrl; + + /* Set GMAC to no flow control and auto update for speed/duplex */ + gma_write16(hw, port, GM_GP_CTRL, + GM_GPCR_FC_TX_DIS|GM_GPCR_TX_ENA|GM_GPCR_RX_ENA| + GM_GPCR_DUP_FULL|GM_GPCR_FC_RX_DIS|GM_GPCR_AU_FCT_DIS); + + /* Set WOL address */ + memcpy_toio(hw->regs + WOL_REGS(port, WOL_MAC_ADDR), + sky2->netdev->dev_addr, ETH_ALEN); + + /* Turn on appropriate WOL control bits */ + sky2_write16(hw, WOL_REGS(port, WOL_CTRL_STAT), WOL_CTL_CLEAR_RESULT); + ctrl = 0; + if (sky2->wol & WAKE_PHY) + ctrl |= WOL_CTL_ENA_PME_ON_LINK_CHG|WOL_CTL_ENA_LINK_CHG_UNIT; + else + ctrl |= WOL_CTL_DIS_PME_ON_LINK_CHG|WOL_CTL_DIS_LINK_CHG_UNIT; + + if (sky2->wol & WAKE_MAGIC) + ctrl |= WOL_CTL_ENA_PME_ON_MAGIC_PKT|WOL_CTL_ENA_MAGIC_PKT_UNIT; + else + ctrl |= WOL_CTL_DIS_PME_ON_MAGIC_PKT|WOL_CTL_DIS_MAGIC_PKT_UNIT; + + ctrl |= WOL_CTL_DIS_PME_ON_PATTERN|WOL_CTL_DIS_PATTERN_UNIT; + sky2_write16(hw, WOL_REGS(port, WOL_CTRL_STAT), ctrl); + + /* Disable PiG firmware */ + sky2_write16(hw, B0_CTST, Y2_HW_WOL_OFF); + + /* Needed by some broken BIOSes, use PCI rather than PCI-e for WOL */ + if (legacy_pme) { + u32 reg1 = sky2_pci_read32(hw, PCI_DEV_REG1); + reg1 |= PCI_Y2_PME_LEGACY; + sky2_pci_write32(hw, PCI_DEV_REG1, reg1); + } + + /* block receiver */ + sky2_write8(hw, SK_REG(port, RX_GMF_CTRL_T), GMF_RST_SET); + sky2_read32(hw, B0_CTST); +} + +static void sky2_set_tx_stfwd(struct sky2_hw *hw, unsigned port) +{ + struct net_device *dev = hw->dev[port]; + + if ( (hw->chip_id == CHIP_ID_YUKON_EX && + hw->chip_rev != CHIP_REV_YU_EX_A0) || + hw->chip_id >= CHIP_ID_YUKON_FE_P) { + /* Yukon-Extreme B0 and further Extreme devices */ + sky2_write32(hw, SK_REG(port, TX_GMF_CTRL_T), TX_STFW_ENA); + } else if (dev->mtu > ETH_DATA_LEN) { + /* set Tx GMAC FIFO Almost Empty Threshold */ + sky2_write32(hw, SK_REG(port, TX_GMF_AE_THR), + (ECU_JUMBO_WM << 16) | ECU_AE_THR); + + sky2_write32(hw, SK_REG(port, TX_GMF_CTRL_T), TX_STFW_DIS); + } else + sky2_write32(hw, SK_REG(port, TX_GMF_CTRL_T), TX_STFW_ENA); +} + +static void sky2_mac_init(struct sky2_hw *hw, unsigned port) +{ + struct sky2_port *sky2 = netdev_priv(hw->dev[port]); + u16 reg; + u32 rx_reg; + int i; + const u8 *addr = hw->dev[port]->dev_addr; + + sky2_write8(hw, SK_REG(port, GPHY_CTRL), GPC_RST_SET); + sky2_write8(hw, SK_REG(port, GPHY_CTRL), GPC_RST_CLR); + + sky2_write8(hw, SK_REG(port, GMAC_CTRL), GMC_RST_CLR); + + if (hw->chip_id == CHIP_ID_YUKON_XL && + hw->chip_rev == CHIP_REV_YU_XL_A0 && + port == 1) { + /* WA DEV_472 -- looks like crossed wires on port 2 */ + /* clear GMAC 1 Control reset */ + sky2_write8(hw, SK_REG(0, GMAC_CTRL), GMC_RST_CLR); + do { + sky2_write8(hw, SK_REG(1, GMAC_CTRL), GMC_RST_SET); + sky2_write8(hw, SK_REG(1, GMAC_CTRL), GMC_RST_CLR); + } while (gm_phy_read(hw, 1, PHY_MARV_ID0) != PHY_MARV_ID0_VAL || + gm_phy_read(hw, 1, PHY_MARV_ID1) != PHY_MARV_ID1_Y2 || + gm_phy_read(hw, 1, PHY_MARV_INT_MASK) != 0); + } + + sky2_read16(hw, SK_REG(port, GMAC_IRQ_SRC)); + + /* Enable Transmit FIFO Underrun */ + sky2_write8(hw, SK_REG(port, GMAC_IRQ_MSK), GMAC_DEF_MSK); + + spin_lock_bh(&sky2->phy_lock); + sky2_phy_power_up(hw, port); + sky2_phy_init(hw, port); + spin_unlock_bh(&sky2->phy_lock); + + /* MIB clear */ + reg = gma_read16(hw, port, GM_PHY_ADDR); + gma_write16(hw, port, GM_PHY_ADDR, reg | GM_PAR_MIB_CLR); + + for (i = GM_MIB_CNT_BASE; i <= GM_MIB_CNT_END; i += 4) + gma_read16(hw, port, i); + gma_write16(hw, port, GM_PHY_ADDR, reg); + + /* transmit control */ + gma_write16(hw, port, GM_TX_CTRL, TX_COL_THR(TX_COL_DEF)); + + /* receive control reg: unicast + multicast + no FCS */ + gma_write16(hw, port, GM_RX_CTRL, + GM_RXCR_UCF_ENA | GM_RXCR_CRC_DIS | GM_RXCR_MCF_ENA); + + /* transmit flow control */ + gma_write16(hw, port, GM_TX_FLOW_CTRL, 0xffff); + + /* transmit parameter */ + gma_write16(hw, port, GM_TX_PARAM, + TX_JAM_LEN_VAL(TX_JAM_LEN_DEF) | + TX_JAM_IPG_VAL(TX_JAM_IPG_DEF) | + TX_IPG_JAM_DATA(TX_IPG_JAM_DEF) | + TX_BACK_OFF_LIM(TX_BOF_LIM_DEF)); + + /* serial mode register */ + reg = DATA_BLIND_VAL(DATA_BLIND_DEF) | + GM_SMOD_VLAN_ENA | IPG_DATA_VAL(IPG_DATA_DEF_1000); + + if (hw->dev[port]->mtu > ETH_DATA_LEN) + reg |= GM_SMOD_JUMBO_ENA; + + if (hw->chip_id == CHIP_ID_YUKON_EC_U && + hw->chip_rev == CHIP_REV_YU_EC_U_B1) + reg |= GM_NEW_FLOW_CTRL; + + gma_write16(hw, port, GM_SERIAL_MODE, reg); + + /* virtual address for data */ + gma_set_addr(hw, port, GM_SRC_ADDR_2L, addr); + + /* physical address: used for pause frames */ + gma_set_addr(hw, port, GM_SRC_ADDR_1L, addr); + + /* ignore counter overflows */ + gma_write16(hw, port, GM_TX_IRQ_MSK, 0); + gma_write16(hw, port, GM_RX_IRQ_MSK, 0); + gma_write16(hw, port, GM_TR_IRQ_MSK, 0); + + /* Configure Rx MAC FIFO */ + sky2_write8(hw, SK_REG(port, RX_GMF_CTRL_T), GMF_RST_CLR); + rx_reg = GMF_OPER_ON | GMF_RX_F_FL_ON; + if (hw->chip_id == CHIP_ID_YUKON_EX || + hw->chip_id == CHIP_ID_YUKON_FE_P) + rx_reg |= GMF_RX_OVER_ON; + + sky2_write32(hw, SK_REG(port, RX_GMF_CTRL_T), rx_reg); + + if (hw->chip_id == CHIP_ID_YUKON_XL) { + /* Hardware errata - clear flush mask */ + sky2_write16(hw, SK_REG(port, RX_GMF_FL_MSK), 0); + } else { + /* Flush Rx MAC FIFO on any flow control or error */ + sky2_write16(hw, SK_REG(port, RX_GMF_FL_MSK), GMR_FS_ANY_ERR); + } + + /* Set threshold to 0xa (64 bytes) + 1 to workaround pause bug */ + reg = RX_GMF_FL_THR_DEF + 1; + /* Another magic mystery workaround from sk98lin */ + if (hw->chip_id == CHIP_ID_YUKON_FE_P && + hw->chip_rev == CHIP_REV_YU_FE2_A0) + reg = 0x178; + sky2_write16(hw, SK_REG(port, RX_GMF_FL_THR), reg); + + /* Configure Tx MAC FIFO */ + sky2_write8(hw, SK_REG(port, TX_GMF_CTRL_T), GMF_RST_CLR); + sky2_write16(hw, SK_REG(port, TX_GMF_CTRL_T), GMF_OPER_ON); + + /* On chips without ram buffer, pause is controlled by MAC level */ + if (!(hw->flags & SKY2_HW_RAM_BUFFER)) { + /* Pause threshold is scaled by 8 in bytes */ + if (hw->chip_id == CHIP_ID_YUKON_FE_P && + hw->chip_rev == CHIP_REV_YU_FE2_A0) + reg = 1568 / 8; + else + reg = 1024 / 8; + sky2_write16(hw, SK_REG(port, RX_GMF_UP_THR), reg); + sky2_write16(hw, SK_REG(port, RX_GMF_LP_THR), 768 / 8); + + sky2_set_tx_stfwd(hw, port); + } + + if (hw->chip_id == CHIP_ID_YUKON_FE_P && + hw->chip_rev == CHIP_REV_YU_FE2_A0) { + /* disable dynamic watermark */ + reg = sky2_read16(hw, SK_REG(port, TX_GMF_EA)); + reg &= ~TX_DYN_WM_ENA; + sky2_write16(hw, SK_REG(port, TX_GMF_EA), reg); + } +} + +/* Assign Ram Buffer allocation to queue */ +static void sky2_ramset(struct sky2_hw *hw, u16 q, u32 start, u32 space) +{ + u32 end; + + /* convert from K bytes to qwords used for hw register */ + start *= 1024/8; + space *= 1024/8; + end = start + space - 1; + + sky2_write8(hw, RB_ADDR(q, RB_CTRL), RB_RST_CLR); + sky2_write32(hw, RB_ADDR(q, RB_START), start); + sky2_write32(hw, RB_ADDR(q, RB_END), end); + sky2_write32(hw, RB_ADDR(q, RB_WP), start); + sky2_write32(hw, RB_ADDR(q, RB_RP), start); + + if (q == Q_R1 || q == Q_R2) { + u32 tp = space - space/4; + + /* On receive queue's set the thresholds + * give receiver priority when > 3/4 full + * send pause when down to 2K + */ + sky2_write32(hw, RB_ADDR(q, RB_RX_UTHP), tp); + sky2_write32(hw, RB_ADDR(q, RB_RX_LTHP), space/2); + + tp = space - 8192/8; + sky2_write32(hw, RB_ADDR(q, RB_RX_UTPP), tp); + sky2_write32(hw, RB_ADDR(q, RB_RX_LTPP), space/4); + } else { + /* Enable store & forward on Tx queue's because + * Tx FIFO is only 1K on Yukon + */ + sky2_write8(hw, RB_ADDR(q, RB_CTRL), RB_ENA_STFWD); + } + + sky2_write8(hw, RB_ADDR(q, RB_CTRL), RB_ENA_OP_MD); + sky2_read8(hw, RB_ADDR(q, RB_CTRL)); +} + +/* Setup Bus Memory Interface */ +static void sky2_qset(struct sky2_hw *hw, u16 q) +{ + sky2_write32(hw, Q_ADDR(q, Q_CSR), BMU_CLR_RESET); + sky2_write32(hw, Q_ADDR(q, Q_CSR), BMU_OPER_INIT); + sky2_write32(hw, Q_ADDR(q, Q_CSR), BMU_FIFO_OP_ON); + sky2_write32(hw, Q_ADDR(q, Q_WM), BMU_WM_DEFAULT); +} + +/* Setup prefetch unit registers. This is the interface between + * hardware and driver list elements + */ +static void sky2_prefetch_init(struct sky2_hw *hw, u32 qaddr, + dma_addr_t addr, u32 last) +{ + sky2_write32(hw, Y2_QADDR(qaddr, PREF_UNIT_CTRL), PREF_UNIT_RST_SET); + sky2_write32(hw, Y2_QADDR(qaddr, PREF_UNIT_CTRL), PREF_UNIT_RST_CLR); + sky2_write32(hw, Y2_QADDR(qaddr, PREF_UNIT_ADDR_HI), upper_32_bits(addr)); + sky2_write32(hw, Y2_QADDR(qaddr, PREF_UNIT_ADDR_LO), lower_32_bits(addr)); + sky2_write16(hw, Y2_QADDR(qaddr, PREF_UNIT_LAST_IDX), last); + sky2_write32(hw, Y2_QADDR(qaddr, PREF_UNIT_CTRL), PREF_UNIT_OP_ON); + + sky2_read32(hw, Y2_QADDR(qaddr, PREF_UNIT_CTRL)); +} + +static inline struct sky2_tx_le *get_tx_le(struct sky2_port *sky2, u16 *slot) +{ + struct sky2_tx_le *le = sky2->tx_le + *slot; + + *slot = RING_NEXT(*slot, sky2->tx_ring_size); + le->ctrl = 0; + return le; +} + +static void tx_init(struct sky2_port *sky2) +{ + struct sky2_tx_le *le; + + sky2->tx_prod = sky2->tx_cons = 0; + sky2->tx_tcpsum = 0; + sky2->tx_last_mss = 0; + netdev_reset_queue(sky2->netdev); + + le = get_tx_le(sky2, &sky2->tx_prod); + le->addr = 0; + le->opcode = OP_ADDR64 | HW_OWNER; + sky2->tx_last_upper = 0; +} + +/* Update chip's next pointer */ +static inline void sky2_put_idx(struct sky2_hw *hw, unsigned q, u16 idx) +{ + /* Make sure write' to descriptors are complete before we tell hardware */ + wmb(); + sky2_write16(hw, Y2_QADDR(q, PREF_UNIT_PUT_IDX), idx); +} + + +static inline struct sky2_rx_le *sky2_next_rx(struct sky2_port *sky2) +{ + struct sky2_rx_le *le = sky2->rx_le + sky2->rx_put; + sky2->rx_put = RING_NEXT(sky2->rx_put, RX_LE_SIZE); + le->ctrl = 0; + return le; +} + +static unsigned sky2_get_rx_threshold(struct sky2_port *sky2) +{ + unsigned size; + + /* Space needed for frame data + headers rounded up */ + size = roundup(sky2->netdev->mtu + ETH_HLEN + VLAN_HLEN, 8); + + /* Stopping point for hardware truncation */ + return (size - 8) / sizeof(u32); +} + +static unsigned sky2_get_rx_data_size(struct sky2_port *sky2) +{ + struct rx_ring_info *re; + unsigned size; + + /* Space needed for frame data + headers rounded up */ + size = roundup(sky2->netdev->mtu + ETH_HLEN + VLAN_HLEN, 8); + + sky2->rx_nfrags = size >> PAGE_SHIFT; + BUG_ON(sky2->rx_nfrags > ARRAY_SIZE(re->frag_addr)); + + /* Compute residue after pages */ + size -= sky2->rx_nfrags << PAGE_SHIFT; + + /* Optimize to handle small packets and headers */ + if (size < copybreak) + size = copybreak; + if (size < ETH_HLEN) + size = ETH_HLEN; + + return size; +} + +/* Build description to hardware for one receive segment */ +static void sky2_rx_add(struct sky2_port *sky2, u8 op, + dma_addr_t map, unsigned len) +{ + struct sky2_rx_le *le; + + if (sizeof(dma_addr_t) > sizeof(u32)) { + le = sky2_next_rx(sky2); + le->addr = cpu_to_le32(upper_32_bits(map)); + le->opcode = OP_ADDR64 | HW_OWNER; + } + + le = sky2_next_rx(sky2); + le->addr = cpu_to_le32(lower_32_bits(map)); + le->length = cpu_to_le16(len); + le->opcode = op | HW_OWNER; +} + +/* Build description to hardware for one possibly fragmented skb */ +static void sky2_rx_submit(struct sky2_port *sky2, + const struct rx_ring_info *re) +{ + int i; + + sky2_rx_add(sky2, OP_PACKET, re->data_addr, sky2->rx_data_size); + + for (i = 0; i < skb_shinfo(re->skb)->nr_frags; i++) + sky2_rx_add(sky2, OP_BUFFER, re->frag_addr[i], PAGE_SIZE); +} + + +static int sky2_rx_map_skb(struct pci_dev *pdev, struct rx_ring_info *re, + unsigned size) +{ + struct sk_buff *skb = re->skb; + int i; + + re->data_addr = dma_map_single(&pdev->dev, skb->data, size, + DMA_FROM_DEVICE); + if (dma_mapping_error(&pdev->dev, re->data_addr)) + goto mapping_error; + + dma_unmap_len_set(re, data_size, size); + + for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) { + const skb_frag_t *frag = &skb_shinfo(skb)->frags[i]; + + re->frag_addr[i] = skb_frag_dma_map(&pdev->dev, frag, 0, + skb_frag_size(frag), + DMA_FROM_DEVICE); + + if (dma_mapping_error(&pdev->dev, re->frag_addr[i])) + goto map_page_error; + } + return 0; + +map_page_error: + while (--i >= 0) { + dma_unmap_page(&pdev->dev, re->frag_addr[i], + skb_frag_size(&skb_shinfo(skb)->frags[i]), + DMA_FROM_DEVICE); + } + + dma_unmap_single(&pdev->dev, re->data_addr, + dma_unmap_len(re, data_size), DMA_FROM_DEVICE); + +mapping_error: + if (net_ratelimit()) + dev_warn(&pdev->dev, "%s: rx mapping error\n", + skb->dev->name); + return -EIO; +} + +static void sky2_rx_unmap_skb(struct pci_dev *pdev, struct rx_ring_info *re) +{ + struct sk_buff *skb = re->skb; + int i; + + dma_unmap_single(&pdev->dev, re->data_addr, + dma_unmap_len(re, data_size), DMA_FROM_DEVICE); + + for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) + dma_unmap_page(&pdev->dev, re->frag_addr[i], + skb_frag_size(&skb_shinfo(skb)->frags[i]), + DMA_FROM_DEVICE); +} + +/* Tell chip where to start receive checksum. + * Actually has two checksums, but set both same to avoid possible byte + * order problems. + */ +static void rx_set_checksum(struct sky2_port *sky2) +{ + struct sky2_rx_le *le = sky2_next_rx(sky2); + + le->addr = cpu_to_le32((ETH_HLEN << 16) | ETH_HLEN); + le->ctrl = 0; + le->opcode = OP_TCPSTART | HW_OWNER; + + sky2_write32(sky2->hw, + Q_ADDR(rxqaddr[sky2->port], Q_CSR), + (sky2->netdev->features & NETIF_F_RXCSUM) + ? BMU_ENA_RX_CHKSUM : BMU_DIS_RX_CHKSUM); +} + +/* Enable/disable receive hash calculation (RSS) */ +static void rx_set_rss(struct net_device *dev, netdev_features_t features) +{ + struct sky2_port *sky2 = netdev_priv(dev); + struct sky2_hw *hw = sky2->hw; + int i, nkeys = 4; + + /* Supports IPv6 and other modes */ + if (hw->flags & SKY2_HW_NEW_LE) { + nkeys = 10; + sky2_write32(hw, SK_REG(sky2->port, RSS_CFG), HASH_ALL); + } + + /* Program RSS initial values */ + if (features & NETIF_F_RXHASH) { + u32 rss_key[10]; + + netdev_rss_key_fill(rss_key, sizeof(rss_key)); + for (i = 0; i < nkeys; i++) + sky2_write32(hw, SK_REG(sky2->port, RSS_KEY + i * 4), + rss_key[i]); + + /* Need to turn on (undocumented) flag to make hashing work */ + sky2_write32(hw, SK_REG(sky2->port, RX_GMF_CTRL_T), + RX_STFW_ENA); + + sky2_write32(hw, Q_ADDR(rxqaddr[sky2->port], Q_CSR), + BMU_ENA_RX_RSS_HASH); + } else + sky2_write32(hw, Q_ADDR(rxqaddr[sky2->port], Q_CSR), + BMU_DIS_RX_RSS_HASH); +} + +/* + * The RX Stop command will not work for Yukon-2 if the BMU does not + * reach the end of packet and since we can't make sure that we have + * incoming data, we must reset the BMU while it is not doing a DMA + * transfer. Since it is possible that the RX path is still active, + * the RX RAM buffer will be stopped first, so any possible incoming + * data will not trigger a DMA. After the RAM buffer is stopped, the + * BMU is polled until any DMA in progress is ended and only then it + * will be reset. + */ +static void sky2_rx_stop(struct sky2_port *sky2) +{ + struct sky2_hw *hw = sky2->hw; + unsigned rxq = rxqaddr[sky2->port]; + int i; + + /* disable the RAM Buffer receive queue */ + sky2_write8(hw, RB_ADDR(rxq, RB_CTRL), RB_DIS_OP_MD); + + for (i = 0; i < 0xffff; i++) + if (sky2_read8(hw, RB_ADDR(rxq, Q_RSL)) + == sky2_read8(hw, RB_ADDR(rxq, Q_RL))) + goto stopped; + + netdev_warn(sky2->netdev, "receiver stop failed\n"); +stopped: + sky2_write32(hw, Q_ADDR(rxq, Q_CSR), BMU_RST_SET | BMU_FIFO_RST); + + /* reset the Rx prefetch unit */ + sky2_write32(hw, Y2_QADDR(rxq, PREF_UNIT_CTRL), PREF_UNIT_RST_SET); +} + +/* Clean out receive buffer area, assumes receiver hardware stopped */ +static void sky2_rx_clean(struct sky2_port *sky2) +{ + unsigned i; + + if (sky2->rx_le) + memset(sky2->rx_le, 0, RX_LE_BYTES); + + for (i = 0; i < sky2->rx_pending; i++) { + struct rx_ring_info *re = sky2->rx_ring + i; + + if (re->skb) { + sky2_rx_unmap_skb(sky2->hw->pdev, re); + kfree_skb(re->skb); + re->skb = NULL; + } + } +} + +/* Basic MII support */ +static int sky2_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) +{ + struct mii_ioctl_data *data = if_mii(ifr); + struct sky2_port *sky2 = netdev_priv(dev); + struct sky2_hw *hw = sky2->hw; + int err = -EOPNOTSUPP; + + if (!netif_running(dev)) + return -ENODEV; /* Phy still in reset */ + + switch (cmd) { + case SIOCGMIIPHY: + data->phy_id = PHY_ADDR_MARV; + + fallthrough; + case SIOCGMIIREG: { + u16 val = 0; + + spin_lock_bh(&sky2->phy_lock); + err = __gm_phy_read(hw, sky2->port, data->reg_num & 0x1f, &val); + spin_unlock_bh(&sky2->phy_lock); + + data->val_out = val; + break; + } + + case SIOCSMIIREG: + spin_lock_bh(&sky2->phy_lock); + err = gm_phy_write(hw, sky2->port, data->reg_num & 0x1f, + data->val_in); + spin_unlock_bh(&sky2->phy_lock); + break; + } + return err; +} + +#define SKY2_VLAN_OFFLOADS (NETIF_F_IP_CSUM | NETIF_F_SG | NETIF_F_TSO) + +static void sky2_vlan_mode(struct net_device *dev, netdev_features_t features) +{ + struct sky2_port *sky2 = netdev_priv(dev); + struct sky2_hw *hw = sky2->hw; + u16 port = sky2->port; + + if (features & NETIF_F_HW_VLAN_CTAG_RX) + sky2_write32(hw, SK_REG(port, RX_GMF_CTRL_T), + RX_VLAN_STRIP_ON); + else + sky2_write32(hw, SK_REG(port, RX_GMF_CTRL_T), + RX_VLAN_STRIP_OFF); + + if (features & NETIF_F_HW_VLAN_CTAG_TX) { + sky2_write32(hw, SK_REG(port, TX_GMF_CTRL_T), + TX_VLAN_TAG_ON); + + dev->vlan_features |= SKY2_VLAN_OFFLOADS; + } else { + sky2_write32(hw, SK_REG(port, TX_GMF_CTRL_T), + TX_VLAN_TAG_OFF); + + /* Can't do transmit offload of vlan without hw vlan */ + dev->vlan_features &= ~SKY2_VLAN_OFFLOADS; + } +} + +/* Amount of required worst case padding in rx buffer */ +static inline unsigned sky2_rx_pad(const struct sky2_hw *hw) +{ + return (hw->flags & SKY2_HW_RAM_BUFFER) ? 8 : 2; +} + +/* + * Allocate an skb for receiving. If the MTU is large enough + * make the skb non-linear with a fragment list of pages. + */ +static struct sk_buff *sky2_rx_alloc(struct sky2_port *sky2, gfp_t gfp) +{ + struct sk_buff *skb; + int i; + + skb = __netdev_alloc_skb(sky2->netdev, + sky2->rx_data_size + sky2_rx_pad(sky2->hw), + gfp); + if (!skb) + goto nomem; + + if (sky2->hw->flags & SKY2_HW_RAM_BUFFER) { + unsigned char *start; + /* + * Workaround for a bug in FIFO that cause hang + * if the FIFO if the receive buffer is not 64 byte aligned. + * The buffer returned from netdev_alloc_skb is + * aligned except if slab debugging is enabled. + */ + start = PTR_ALIGN(skb->data, 8); + skb_reserve(skb, start - skb->data); + } else + skb_reserve(skb, NET_IP_ALIGN); + + for (i = 0; i < sky2->rx_nfrags; i++) { + struct page *page = alloc_page(gfp); + + if (!page) + goto free_partial; + skb_fill_page_desc(skb, i, page, 0, PAGE_SIZE); + } + + return skb; +free_partial: + kfree_skb(skb); +nomem: + return NULL; +} + +static inline void sky2_rx_update(struct sky2_port *sky2, unsigned rxq) +{ + sky2_put_idx(sky2->hw, rxq, sky2->rx_put); +} + +static int sky2_alloc_rx_skbs(struct sky2_port *sky2) +{ + struct sky2_hw *hw = sky2->hw; + unsigned i; + + sky2->rx_data_size = sky2_get_rx_data_size(sky2); + + /* Fill Rx ring */ + for (i = 0; i < sky2->rx_pending; i++) { + struct rx_ring_info *re = sky2->rx_ring + i; + + re->skb = sky2_rx_alloc(sky2, GFP_KERNEL); + if (!re->skb) + return -ENOMEM; + + if (sky2_rx_map_skb(hw->pdev, re, sky2->rx_data_size)) { + dev_kfree_skb(re->skb); + re->skb = NULL; + return -ENOMEM; + } + } + return 0; +} + +/* + * Setup receiver buffer pool. + * Normal case this ends up creating one list element for skb + * in the receive ring. Worst case if using large MTU and each + * allocation falls on a different 64 bit region, that results + * in 6 list elements per ring entry. + * One element is used for checksum enable/disable, and one + * extra to avoid wrap. + */ +static void sky2_rx_start(struct sky2_port *sky2) +{ + struct sky2_hw *hw = sky2->hw; + struct rx_ring_info *re; + unsigned rxq = rxqaddr[sky2->port]; + unsigned i, thresh; + + sky2->rx_put = sky2->rx_next = 0; + sky2_qset(hw, rxq); + + /* On PCI express lowering the watermark gives better performance */ + if (pci_is_pcie(hw->pdev)) + sky2_write32(hw, Q_ADDR(rxq, Q_WM), BMU_WM_PEX); + + /* These chips have no ram buffer? + * MAC Rx RAM Read is controlled by hardware + */ + if (hw->chip_id == CHIP_ID_YUKON_EC_U && + hw->chip_rev > CHIP_REV_YU_EC_U_A0) + sky2_write32(hw, Q_ADDR(rxq, Q_TEST), F_M_RX_RAM_DIS); + + sky2_prefetch_init(hw, rxq, sky2->rx_le_map, RX_LE_SIZE - 1); + + if (!(hw->flags & SKY2_HW_NEW_LE)) + rx_set_checksum(sky2); + + if (!(hw->flags & SKY2_HW_RSS_BROKEN)) + rx_set_rss(sky2->netdev, sky2->netdev->features); + + /* submit Rx ring */ + for (i = 0; i < sky2->rx_pending; i++) { + re = sky2->rx_ring + i; + sky2_rx_submit(sky2, re); + } + + /* + * The receiver hangs if it receives frames larger than the + * packet buffer. As a workaround, truncate oversize frames, but + * the register is limited to 9 bits, so if you do frames > 2052 + * you better get the MTU right! + */ + thresh = sky2_get_rx_threshold(sky2); + if (thresh > 0x1ff) + sky2_write32(hw, SK_REG(sky2->port, RX_GMF_CTRL_T), RX_TRUNC_OFF); + else { + sky2_write16(hw, SK_REG(sky2->port, RX_GMF_TR_THR), thresh); + sky2_write32(hw, SK_REG(sky2->port, RX_GMF_CTRL_T), RX_TRUNC_ON); + } + + /* Tell chip about available buffers */ + sky2_rx_update(sky2, rxq); + + if (hw->chip_id == CHIP_ID_YUKON_EX || + hw->chip_id == CHIP_ID_YUKON_SUPR) { + /* + * Disable flushing of non ASF packets; + * must be done after initializing the BMUs; + * drivers without ASF support should do this too, otherwise + * it may happen that they cannot run on ASF devices; + * remember that the MAC FIFO isn't reset during initialization. + */ + sky2_write32(hw, SK_REG(sky2->port, RX_GMF_CTRL_T), RX_MACSEC_FLUSH_OFF); + } + + if (hw->chip_id >= CHIP_ID_YUKON_SUPR) { + /* Enable RX Home Address & Routing Header checksum fix */ + sky2_write16(hw, SK_REG(sky2->port, RX_GMF_FL_CTRL), + RX_IPV6_SA_MOB_ENA | RX_IPV6_DA_MOB_ENA); + + /* Enable TX Home Address & Routing Header checksum fix */ + sky2_write32(hw, Q_ADDR(txqaddr[sky2->port], Q_TEST), + TBMU_TEST_HOME_ADD_FIX_EN | TBMU_TEST_ROUTING_ADD_FIX_EN); + } +} + +static int sky2_alloc_buffers(struct sky2_port *sky2) +{ + struct sky2_hw *hw = sky2->hw; + + /* must be power of 2 */ + sky2->tx_le = dma_alloc_coherent(&hw->pdev->dev, + sky2->tx_ring_size * sizeof(struct sky2_tx_le), + &sky2->tx_le_map, GFP_KERNEL); + if (!sky2->tx_le) + goto nomem; + + sky2->tx_ring = kcalloc(sky2->tx_ring_size, sizeof(struct tx_ring_info), + GFP_KERNEL); + if (!sky2->tx_ring) + goto nomem; + + sky2->rx_le = dma_alloc_coherent(&hw->pdev->dev, RX_LE_BYTES, + &sky2->rx_le_map, GFP_KERNEL); + if (!sky2->rx_le) + goto nomem; + + sky2->rx_ring = kcalloc(sky2->rx_pending, sizeof(struct rx_ring_info), + GFP_KERNEL); + if (!sky2->rx_ring) + goto nomem; + + return sky2_alloc_rx_skbs(sky2); +nomem: + return -ENOMEM; +} + +static void sky2_free_buffers(struct sky2_port *sky2) +{ + struct sky2_hw *hw = sky2->hw; + + sky2_rx_clean(sky2); + + if (sky2->rx_le) { + dma_free_coherent(&hw->pdev->dev, RX_LE_BYTES, sky2->rx_le, + sky2->rx_le_map); + sky2->rx_le = NULL; + } + if (sky2->tx_le) { + dma_free_coherent(&hw->pdev->dev, + sky2->tx_ring_size * sizeof(struct sky2_tx_le), + sky2->tx_le, sky2->tx_le_map); + sky2->tx_le = NULL; + } + kfree(sky2->tx_ring); + kfree(sky2->rx_ring); + + sky2->tx_ring = NULL; + sky2->rx_ring = NULL; +} + +static void sky2_hw_up(struct sky2_port *sky2) +{ + struct sky2_hw *hw = sky2->hw; + unsigned port = sky2->port; + u32 ramsize; + int cap; + struct net_device *otherdev = hw->dev[sky2->port^1]; + + tx_init(sky2); + + /* + * On dual port PCI-X card, there is an problem where status + * can be received out of order due to split transactions + */ + if (otherdev && netif_running(otherdev) && + (cap = pci_find_capability(hw->pdev, PCI_CAP_ID_PCIX))) { + u16 cmd; + + cmd = sky2_pci_read16(hw, cap + PCI_X_CMD); + cmd &= ~PCI_X_CMD_MAX_SPLIT; + sky2_pci_write16(hw, cap + PCI_X_CMD, cmd); + } + + sky2_mac_init(hw, port); + + /* Register is number of 4K blocks on internal RAM buffer. */ + ramsize = sky2_read8(hw, B2_E_0) * 4; + if (ramsize > 0) { + u32 rxspace; + + netdev_dbg(sky2->netdev, "ram buffer %dK\n", ramsize); + if (ramsize < 16) + rxspace = ramsize / 2; + else + rxspace = 8 + (2*(ramsize - 16))/3; + + sky2_ramset(hw, rxqaddr[port], 0, rxspace); + sky2_ramset(hw, txqaddr[port], rxspace, ramsize - rxspace); + + /* Make sure SyncQ is disabled */ + sky2_write8(hw, RB_ADDR(port == 0 ? Q_XS1 : Q_XS2, RB_CTRL), + RB_RST_SET); + } + + sky2_qset(hw, txqaddr[port]); + + /* This is copied from sk98lin 10.0.5.3; no one tells me about erratta's */ + if (hw->chip_id == CHIP_ID_YUKON_EX && hw->chip_rev == CHIP_REV_YU_EX_B0) + sky2_write32(hw, Q_ADDR(txqaddr[port], Q_TEST), F_TX_CHK_AUTO_OFF); + + /* Set almost empty threshold */ + if (hw->chip_id == CHIP_ID_YUKON_EC_U && + hw->chip_rev == CHIP_REV_YU_EC_U_A0) + sky2_write16(hw, Q_ADDR(txqaddr[port], Q_AL), ECU_TXFF_LEV); + + sky2_prefetch_init(hw, txqaddr[port], sky2->tx_le_map, + sky2->tx_ring_size - 1); + + sky2_vlan_mode(sky2->netdev, sky2->netdev->features); + netdev_update_features(sky2->netdev); + + sky2_rx_start(sky2); +} + +/* Setup device IRQ and enable napi to process */ +static int sky2_setup_irq(struct sky2_hw *hw, const char *name) +{ + struct pci_dev *pdev = hw->pdev; + int err; + + err = request_irq(pdev->irq, sky2_intr, + (hw->flags & SKY2_HW_USE_MSI) ? 0 : IRQF_SHARED, + name, hw); + if (err) + dev_err(&pdev->dev, "cannot assign irq %d\n", pdev->irq); + else { + hw->flags |= SKY2_HW_IRQ_SETUP; + + napi_enable(&hw->napi); + sky2_write32(hw, B0_IMSK, Y2_IS_BASE); + sky2_read32(hw, B0_IMSK); + } + + return err; +} + + +/* Bring up network interface. */ +static int sky2_open(struct net_device *dev) +{ + struct sky2_port *sky2 = netdev_priv(dev); + struct sky2_hw *hw = sky2->hw; + unsigned port = sky2->port; + u32 imask; + int err; + + netif_carrier_off(dev); + + err = sky2_alloc_buffers(sky2); + if (err) + goto err_out; + + /* With single port, IRQ is setup when device is brought up */ + if (hw->ports == 1 && (err = sky2_setup_irq(hw, dev->name))) + goto err_out; + + sky2_hw_up(sky2); + + /* Enable interrupts from phy/mac for port */ + imask = sky2_read32(hw, B0_IMSK); + + if (hw->chip_id == CHIP_ID_YUKON_OPT || + hw->chip_id == CHIP_ID_YUKON_PRM || + hw->chip_id == CHIP_ID_YUKON_OP_2) + imask |= Y2_IS_PHY_QLNK; /* enable PHY Quick Link */ + + imask |= portirq_msk[port]; + sky2_write32(hw, B0_IMSK, imask); + sky2_read32(hw, B0_IMSK); + + netif_info(sky2, ifup, dev, "enabling interface\n"); + + return 0; + +err_out: + sky2_free_buffers(sky2); + return err; +} + +/* Modular subtraction in ring */ +static inline int tx_inuse(const struct sky2_port *sky2) +{ + return (sky2->tx_prod - sky2->tx_cons) & (sky2->tx_ring_size - 1); +} + +/* Number of list elements available for next tx */ +static inline int tx_avail(const struct sky2_port *sky2) +{ + return sky2->tx_pending - tx_inuse(sky2); +} + +/* Estimate of number of transmit list elements required */ +static unsigned tx_le_req(const struct sk_buff *skb) +{ + unsigned count; + + count = (skb_shinfo(skb)->nr_frags + 1) + * (sizeof(dma_addr_t) / sizeof(u32)); + + if (skb_is_gso(skb)) + ++count; + else if (sizeof(dma_addr_t) == sizeof(u32)) + ++count; /* possible vlan */ + + if (skb->ip_summed == CHECKSUM_PARTIAL) + ++count; + + return count; +} + +static void sky2_tx_unmap(struct pci_dev *pdev, struct tx_ring_info *re) +{ + if (re->flags & TX_MAP_SINGLE) + dma_unmap_single(&pdev->dev, dma_unmap_addr(re, mapaddr), + dma_unmap_len(re, maplen), DMA_TO_DEVICE); + else if (re->flags & TX_MAP_PAGE) + dma_unmap_page(&pdev->dev, dma_unmap_addr(re, mapaddr), + dma_unmap_len(re, maplen), DMA_TO_DEVICE); + re->flags = 0; +} + +/* + * Put one packet in ring for transmit. + * A single packet can generate multiple list elements, and + * the number of ring elements will probably be less than the number + * of list elements used. + */ +static netdev_tx_t sky2_xmit_frame(struct sk_buff *skb, + struct net_device *dev) +{ + struct sky2_port *sky2 = netdev_priv(dev); + struct sky2_hw *hw = sky2->hw; + struct sky2_tx_le *le = NULL; + struct tx_ring_info *re; + unsigned i, len; + dma_addr_t mapping; + u32 upper; + u16 slot; + u16 mss; + u8 ctrl; + + if (unlikely(tx_avail(sky2) < tx_le_req(skb))) + return NETDEV_TX_BUSY; + + len = skb_headlen(skb); + mapping = dma_map_single(&hw->pdev->dev, skb->data, len, + DMA_TO_DEVICE); + + if (dma_mapping_error(&hw->pdev->dev, mapping)) + goto mapping_error; + + slot = sky2->tx_prod; + netif_printk(sky2, tx_queued, KERN_DEBUG, dev, + "tx queued, slot %u, len %d\n", slot, skb->len); + + /* Send high bits if needed */ + upper = upper_32_bits(mapping); + if (upper != sky2->tx_last_upper) { + le = get_tx_le(sky2, &slot); + le->addr = cpu_to_le32(upper); + sky2->tx_last_upper = upper; + le->opcode = OP_ADDR64 | HW_OWNER; + } + + /* Check for TCP Segmentation Offload */ + mss = skb_shinfo(skb)->gso_size; + if (mss != 0) { + + if (!(hw->flags & SKY2_HW_NEW_LE)) + mss += skb_tcp_all_headers(skb); + + if (mss != sky2->tx_last_mss) { + le = get_tx_le(sky2, &slot); + le->addr = cpu_to_le32(mss); + + if (hw->flags & SKY2_HW_NEW_LE) + le->opcode = OP_MSS | HW_OWNER; + else + le->opcode = OP_LRGLEN | HW_OWNER; + sky2->tx_last_mss = mss; + } + } + + ctrl = 0; + + /* Add VLAN tag, can piggyback on LRGLEN or ADDR64 */ + if (skb_vlan_tag_present(skb)) { + if (!le) { + le = get_tx_le(sky2, &slot); + le->addr = 0; + le->opcode = OP_VLAN|HW_OWNER; + } else + le->opcode |= OP_VLAN; + le->length = cpu_to_be16(skb_vlan_tag_get(skb)); + ctrl |= INS_VLAN; + } + + /* Handle TCP checksum offload */ + if (skb->ip_summed == CHECKSUM_PARTIAL) { + /* On Yukon EX (some versions) encoding change. */ + if (hw->flags & SKY2_HW_AUTO_TX_SUM) + ctrl |= CALSUM; /* auto checksum */ + else { + const unsigned offset = skb_transport_offset(skb); + u32 tcpsum; + + tcpsum = offset << 16; /* sum start */ + tcpsum |= offset + skb->csum_offset; /* sum write */ + + ctrl |= CALSUM | WR_SUM | INIT_SUM | LOCK_SUM; + if (ip_hdr(skb)->protocol == IPPROTO_UDP) + ctrl |= UDPTCP; + + if (tcpsum != sky2->tx_tcpsum) { + sky2->tx_tcpsum = tcpsum; + + le = get_tx_le(sky2, &slot); + le->addr = cpu_to_le32(tcpsum); + le->length = 0; /* initial checksum value */ + le->ctrl = 1; /* one packet */ + le->opcode = OP_TCPLISW | HW_OWNER; + } + } + } + + re = sky2->tx_ring + slot; + re->flags = TX_MAP_SINGLE; + dma_unmap_addr_set(re, mapaddr, mapping); + dma_unmap_len_set(re, maplen, len); + + le = get_tx_le(sky2, &slot); + le->addr = cpu_to_le32(lower_32_bits(mapping)); + le->length = cpu_to_le16(len); + le->ctrl = ctrl; + le->opcode = mss ? (OP_LARGESEND | HW_OWNER) : (OP_PACKET | HW_OWNER); + + + for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) { + const skb_frag_t *frag = &skb_shinfo(skb)->frags[i]; + + mapping = skb_frag_dma_map(&hw->pdev->dev, frag, 0, + skb_frag_size(frag), DMA_TO_DEVICE); + + if (dma_mapping_error(&hw->pdev->dev, mapping)) + goto mapping_unwind; + + upper = upper_32_bits(mapping); + if (upper != sky2->tx_last_upper) { + le = get_tx_le(sky2, &slot); + le->addr = cpu_to_le32(upper); + sky2->tx_last_upper = upper; + le->opcode = OP_ADDR64 | HW_OWNER; + } + + re = sky2->tx_ring + slot; + re->flags = TX_MAP_PAGE; + dma_unmap_addr_set(re, mapaddr, mapping); + dma_unmap_len_set(re, maplen, skb_frag_size(frag)); + + le = get_tx_le(sky2, &slot); + le->addr = cpu_to_le32(lower_32_bits(mapping)); + le->length = cpu_to_le16(skb_frag_size(frag)); + le->ctrl = ctrl; + le->opcode = OP_BUFFER | HW_OWNER; + } + + re->skb = skb; + le->ctrl |= EOP; + + sky2->tx_prod = slot; + + if (tx_avail(sky2) <= MAX_SKB_TX_LE) + netif_stop_queue(dev); + + netdev_sent_queue(dev, skb->len); + sky2_put_idx(hw, txqaddr[sky2->port], sky2->tx_prod); + + return NETDEV_TX_OK; + +mapping_unwind: + for (i = sky2->tx_prod; i != slot; i = RING_NEXT(i, sky2->tx_ring_size)) { + re = sky2->tx_ring + i; + + sky2_tx_unmap(hw->pdev, re); + } + +mapping_error: + if (net_ratelimit()) + dev_warn(&hw->pdev->dev, "%s: tx mapping error\n", dev->name); + dev_kfree_skb_any(skb); + return NETDEV_TX_OK; +} + +/* + * Free ring elements from starting at tx_cons until "done" + * + * NB: + * 1. The hardware will tell us about partial completion of multi-part + * buffers so make sure not to free skb to early. + * 2. This may run in parallel start_xmit because the it only + * looks at the tail of the queue of FIFO (tx_cons), not + * the head (tx_prod) + */ +static void sky2_tx_complete(struct sky2_port *sky2, u16 done) +{ + struct net_device *dev = sky2->netdev; + u16 idx; + unsigned int bytes_compl = 0, pkts_compl = 0; + + BUG_ON(done >= sky2->tx_ring_size); + + for (idx = sky2->tx_cons; idx != done; + idx = RING_NEXT(idx, sky2->tx_ring_size)) { + struct tx_ring_info *re = sky2->tx_ring + idx; + struct sk_buff *skb = re->skb; + + sky2_tx_unmap(sky2->hw->pdev, re); + + if (skb) { + netif_printk(sky2, tx_done, KERN_DEBUG, dev, + "tx done %u\n", idx); + + pkts_compl++; + bytes_compl += skb->len; + + re->skb = NULL; + dev_kfree_skb_any(skb); + + sky2->tx_next = RING_NEXT(idx, sky2->tx_ring_size); + } + } + + sky2->tx_cons = idx; + smp_mb(); + + netdev_completed_queue(dev, pkts_compl, bytes_compl); + + u64_stats_update_begin(&sky2->tx_stats.syncp); + sky2->tx_stats.packets += pkts_compl; + sky2->tx_stats.bytes += bytes_compl; + u64_stats_update_end(&sky2->tx_stats.syncp); +} + +static void sky2_tx_reset(struct sky2_hw *hw, unsigned port) +{ + /* Disable Force Sync bit and Enable Alloc bit */ + sky2_write8(hw, SK_REG(port, TXA_CTRL), + TXA_DIS_FSYNC | TXA_DIS_ALLOC | TXA_STOP_RC); + + /* Stop Interval Timer and Limit Counter of Tx Arbiter */ + sky2_write32(hw, SK_REG(port, TXA_ITI_INI), 0L); + sky2_write32(hw, SK_REG(port, TXA_LIM_INI), 0L); + + /* Reset the PCI FIFO of the async Tx queue */ + sky2_write32(hw, Q_ADDR(txqaddr[port], Q_CSR), + BMU_RST_SET | BMU_FIFO_RST); + + /* Reset the Tx prefetch units */ + sky2_write32(hw, Y2_QADDR(txqaddr[port], PREF_UNIT_CTRL), + PREF_UNIT_RST_SET); + + sky2_write32(hw, RB_ADDR(txqaddr[port], RB_CTRL), RB_RST_SET); + sky2_write8(hw, SK_REG(port, TX_GMF_CTRL_T), GMF_RST_SET); + + sky2_read32(hw, B0_CTST); +} + +static void sky2_hw_down(struct sky2_port *sky2) +{ + struct sky2_hw *hw = sky2->hw; + unsigned port = sky2->port; + u16 ctrl; + + /* Force flow control off */ + sky2_write8(hw, SK_REG(port, GMAC_CTRL), GMC_PAUSE_OFF); + + /* Stop transmitter */ + sky2_write32(hw, Q_ADDR(txqaddr[port], Q_CSR), BMU_STOP); + sky2_read32(hw, Q_ADDR(txqaddr[port], Q_CSR)); + + sky2_write32(hw, RB_ADDR(txqaddr[port], RB_CTRL), + RB_RST_SET | RB_DIS_OP_MD); + + ctrl = gma_read16(hw, port, GM_GP_CTRL); + ctrl &= ~(GM_GPCR_TX_ENA | GM_GPCR_RX_ENA); + gma_write16(hw, port, GM_GP_CTRL, ctrl); + + sky2_write8(hw, SK_REG(port, GPHY_CTRL), GPC_RST_SET); + + /* Workaround shared GMAC reset */ + if (!(hw->chip_id == CHIP_ID_YUKON_XL && hw->chip_rev == 0 && + port == 0 && hw->dev[1] && netif_running(hw->dev[1]))) + sky2_write8(hw, SK_REG(port, GMAC_CTRL), GMC_RST_SET); + + sky2_write8(hw, SK_REG(port, RX_GMF_CTRL_T), GMF_RST_SET); + + /* Force any delayed status interrupt and NAPI */ + sky2_write32(hw, STAT_LEV_TIMER_CNT, 0); + sky2_write32(hw, STAT_TX_TIMER_CNT, 0); + sky2_write32(hw, STAT_ISR_TIMER_CNT, 0); + sky2_read8(hw, STAT_ISR_TIMER_CTRL); + + sky2_rx_stop(sky2); + + spin_lock_bh(&sky2->phy_lock); + sky2_phy_power_down(hw, port); + spin_unlock_bh(&sky2->phy_lock); + + sky2_tx_reset(hw, port); + + /* Free any pending frames stuck in HW queue */ + sky2_tx_complete(sky2, sky2->tx_prod); +} + +/* Network shutdown */ +static int sky2_close(struct net_device *dev) +{ + struct sky2_port *sky2 = netdev_priv(dev); + struct sky2_hw *hw = sky2->hw; + + /* Never really got started! */ + if (!sky2->tx_le) + return 0; + + netif_info(sky2, ifdown, dev, "disabling interface\n"); + + if (hw->ports == 1) { + sky2_write32(hw, B0_IMSK, 0); + sky2_read32(hw, B0_IMSK); + + napi_disable(&hw->napi); + free_irq(hw->pdev->irq, hw); + hw->flags &= ~SKY2_HW_IRQ_SETUP; + } else { + u32 imask; + + /* Disable port IRQ */ + imask = sky2_read32(hw, B0_IMSK); + imask &= ~portirq_msk[sky2->port]; + sky2_write32(hw, B0_IMSK, imask); + sky2_read32(hw, B0_IMSK); + + synchronize_irq(hw->pdev->irq); + napi_synchronize(&hw->napi); + } + + sky2_hw_down(sky2); + + sky2_free_buffers(sky2); + + return 0; +} + +static u16 sky2_phy_speed(const struct sky2_hw *hw, u16 aux) +{ + if (hw->flags & SKY2_HW_FIBRE_PHY) + return SPEED_1000; + + if (!(hw->flags & SKY2_HW_GIGABIT)) { + if (aux & PHY_M_PS_SPEED_100) + return SPEED_100; + else + return SPEED_10; + } + + switch (aux & PHY_M_PS_SPEED_MSK) { + case PHY_M_PS_SPEED_1000: + return SPEED_1000; + case PHY_M_PS_SPEED_100: + return SPEED_100; + default: + return SPEED_10; + } +} + +static void sky2_link_up(struct sky2_port *sky2) +{ + struct sky2_hw *hw = sky2->hw; + unsigned port = sky2->port; + static const char *fc_name[] = { + [FC_NONE] = "none", + [FC_TX] = "tx", + [FC_RX] = "rx", + [FC_BOTH] = "both", + }; + + sky2_set_ipg(sky2); + + sky2_enable_rx_tx(sky2); + + gm_phy_write(hw, port, PHY_MARV_INT_MASK, PHY_M_DEF_MSK); + + netif_carrier_on(sky2->netdev); + + mod_timer(&hw->watchdog_timer, jiffies + 1); + + /* Turn on link LED */ + sky2_write8(hw, SK_REG(port, LNK_LED_REG), + LINKLED_ON | LINKLED_BLINK_OFF | LINKLED_LINKSYNC_OFF); + + netif_info(sky2, link, sky2->netdev, + "Link is up at %d Mbps, %s duplex, flow control %s\n", + sky2->speed, + sky2->duplex == DUPLEX_FULL ? "full" : "half", + fc_name[sky2->flow_status]); +} + +static void sky2_link_down(struct sky2_port *sky2) +{ + struct sky2_hw *hw = sky2->hw; + unsigned port = sky2->port; + u16 reg; + + gm_phy_write(hw, port, PHY_MARV_INT_MASK, 0); + + reg = gma_read16(hw, port, GM_GP_CTRL); + reg &= ~(GM_GPCR_RX_ENA | GM_GPCR_TX_ENA); + gma_write16(hw, port, GM_GP_CTRL, reg); + + netif_carrier_off(sky2->netdev); + + /* Turn off link LED */ + sky2_write8(hw, SK_REG(port, LNK_LED_REG), LINKLED_OFF); + + netif_info(sky2, link, sky2->netdev, "Link is down\n"); + + sky2_phy_init(hw, port); +} + +static enum flow_control sky2_flow(int rx, int tx) +{ + if (rx) + return tx ? FC_BOTH : FC_RX; + else + return tx ? FC_TX : FC_NONE; +} + +static int sky2_autoneg_done(struct sky2_port *sky2, u16 aux) +{ + struct sky2_hw *hw = sky2->hw; + unsigned port = sky2->port; + u16 advert, lpa; + + advert = gm_phy_read(hw, port, PHY_MARV_AUNE_ADV); + lpa = gm_phy_read(hw, port, PHY_MARV_AUNE_LP); + if (lpa & PHY_M_AN_RF) { + netdev_err(sky2->netdev, "remote fault\n"); + return -1; + } + + if (!(aux & PHY_M_PS_SPDUP_RES)) { + netdev_err(sky2->netdev, "speed/duplex mismatch\n"); + return -1; + } + + sky2->speed = sky2_phy_speed(hw, aux); + sky2->duplex = (aux & PHY_M_PS_FULL_DUP) ? DUPLEX_FULL : DUPLEX_HALF; + + /* Since the pause result bits seem to in different positions on + * different chips. look at registers. + */ + if (hw->flags & SKY2_HW_FIBRE_PHY) { + /* Shift for bits in fiber PHY */ + advert &= ~(ADVERTISE_PAUSE_CAP|ADVERTISE_PAUSE_ASYM); + lpa &= ~(LPA_PAUSE_CAP|LPA_PAUSE_ASYM); + + if (advert & ADVERTISE_1000XPAUSE) + advert |= ADVERTISE_PAUSE_CAP; + if (advert & ADVERTISE_1000XPSE_ASYM) + advert |= ADVERTISE_PAUSE_ASYM; + if (lpa & LPA_1000XPAUSE) + lpa |= LPA_PAUSE_CAP; + if (lpa & LPA_1000XPAUSE_ASYM) + lpa |= LPA_PAUSE_ASYM; + } + + sky2->flow_status = FC_NONE; + if (advert & ADVERTISE_PAUSE_CAP) { + if (lpa & LPA_PAUSE_CAP) + sky2->flow_status = FC_BOTH; + else if (advert & ADVERTISE_PAUSE_ASYM) + sky2->flow_status = FC_RX; + } else if (advert & ADVERTISE_PAUSE_ASYM) { + if ((lpa & LPA_PAUSE_CAP) && (lpa & LPA_PAUSE_ASYM)) + sky2->flow_status = FC_TX; + } + + if (sky2->duplex == DUPLEX_HALF && sky2->speed < SPEED_1000 && + !(hw->chip_id == CHIP_ID_YUKON_EC_U || hw->chip_id == CHIP_ID_YUKON_EX)) + sky2->flow_status = FC_NONE; + + if (sky2->flow_status & FC_TX) + sky2_write8(hw, SK_REG(port, GMAC_CTRL), GMC_PAUSE_ON); + else + sky2_write8(hw, SK_REG(port, GMAC_CTRL), GMC_PAUSE_OFF); + + return 0; +} + +/* Interrupt from PHY */ +static void sky2_phy_intr(struct sky2_hw *hw, unsigned port) +{ + struct net_device *dev = hw->dev[port]; + struct sky2_port *sky2 = netdev_priv(dev); + u16 istatus, phystat; + + if (!netif_running(dev)) + return; + + spin_lock(&sky2->phy_lock); + istatus = gm_phy_read(hw, port, PHY_MARV_INT_STAT); + phystat = gm_phy_read(hw, port, PHY_MARV_PHY_STAT); + + netif_info(sky2, intr, sky2->netdev, "phy interrupt status 0x%x 0x%x\n", + istatus, phystat); + + if (istatus & PHY_M_IS_AN_COMPL) { + if (sky2_autoneg_done(sky2, phystat) == 0 && + !netif_carrier_ok(dev)) + sky2_link_up(sky2); + goto out; + } + + if (istatus & PHY_M_IS_LSP_CHANGE) + sky2->speed = sky2_phy_speed(hw, phystat); + + if (istatus & PHY_M_IS_DUP_CHANGE) + sky2->duplex = + (phystat & PHY_M_PS_FULL_DUP) ? DUPLEX_FULL : DUPLEX_HALF; + + if (istatus & PHY_M_IS_LST_CHANGE) { + if (phystat & PHY_M_PS_LINK_UP) + sky2_link_up(sky2); + else + sky2_link_down(sky2); + } +out: + spin_unlock(&sky2->phy_lock); +} + +/* Special quick link interrupt (Yukon-2 Optima only) */ +static void sky2_qlink_intr(struct sky2_hw *hw) +{ + struct sky2_port *sky2 = netdev_priv(hw->dev[0]); + u32 imask; + u16 phy; + + /* disable irq */ + imask = sky2_read32(hw, B0_IMSK); + imask &= ~Y2_IS_PHY_QLNK; + sky2_write32(hw, B0_IMSK, imask); + + /* reset PHY Link Detect */ + phy = sky2_pci_read16(hw, PSM_CONFIG_REG4); + sky2_write8(hw, B2_TST_CTRL1, TST_CFG_WRITE_ON); + sky2_pci_write16(hw, PSM_CONFIG_REG4, phy | 1); + sky2_write8(hw, B2_TST_CTRL1, TST_CFG_WRITE_OFF); + + sky2_link_up(sky2); +} + +/* Transmit timeout is only called if we are running, carrier is up + * and tx queue is full (stopped). + */ +static void sky2_tx_timeout(struct net_device *dev, unsigned int txqueue) +{ + struct sky2_port *sky2 = netdev_priv(dev); + struct sky2_hw *hw = sky2->hw; + + netif_err(sky2, timer, dev, "tx timeout\n"); + + netdev_printk(KERN_DEBUG, dev, "transmit ring %u .. %u report=%u done=%u\n", + sky2->tx_cons, sky2->tx_prod, + sky2_read16(hw, sky2->port == 0 ? STAT_TXA1_RIDX : STAT_TXA2_RIDX), + sky2_read16(hw, Q_ADDR(txqaddr[sky2->port], Q_DONE))); + + /* can't restart safely under softirq */ + schedule_work(&hw->restart_work); +} + +static int sky2_change_mtu(struct net_device *dev, int new_mtu) +{ + struct sky2_port *sky2 = netdev_priv(dev); + struct sky2_hw *hw = sky2->hw; + unsigned port = sky2->port; + int err; + u16 ctl, mode; + u32 imask; + + if (!netif_running(dev)) { + dev->mtu = new_mtu; + netdev_update_features(dev); + return 0; + } + + imask = sky2_read32(hw, B0_IMSK); + sky2_write32(hw, B0_IMSK, 0); + sky2_read32(hw, B0_IMSK); + + netif_trans_update(dev); /* prevent tx timeout */ + napi_disable(&hw->napi); + netif_tx_disable(dev); + + synchronize_irq(hw->pdev->irq); + + if (!(hw->flags & SKY2_HW_RAM_BUFFER)) + sky2_set_tx_stfwd(hw, port); + + ctl = gma_read16(hw, port, GM_GP_CTRL); + gma_write16(hw, port, GM_GP_CTRL, ctl & ~GM_GPCR_RX_ENA); + sky2_rx_stop(sky2); + sky2_rx_clean(sky2); + + dev->mtu = new_mtu; + netdev_update_features(dev); + + mode = DATA_BLIND_VAL(DATA_BLIND_DEF) | GM_SMOD_VLAN_ENA; + if (sky2->speed > SPEED_100) + mode |= IPG_DATA_VAL(IPG_DATA_DEF_1000); + else + mode |= IPG_DATA_VAL(IPG_DATA_DEF_10_100); + + if (dev->mtu > ETH_DATA_LEN) + mode |= GM_SMOD_JUMBO_ENA; + + gma_write16(hw, port, GM_SERIAL_MODE, mode); + + sky2_write8(hw, RB_ADDR(rxqaddr[port], RB_CTRL), RB_ENA_OP_MD); + + err = sky2_alloc_rx_skbs(sky2); + if (!err) + sky2_rx_start(sky2); + else + sky2_rx_clean(sky2); + sky2_write32(hw, B0_IMSK, imask); + + sky2_read32(hw, B0_Y2_SP_LISR); + napi_enable(&hw->napi); + + if (err) + dev_close(dev); + else { + gma_write16(hw, port, GM_GP_CTRL, ctl); + + netif_wake_queue(dev); + } + + return err; +} + +static inline bool needs_copy(const struct rx_ring_info *re, + unsigned length) +{ +#ifndef CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS + /* Some architectures need the IP header to be aligned */ + if (!IS_ALIGNED(re->data_addr + ETH_HLEN, sizeof(u32))) + return true; +#endif + return length < copybreak; +} + +/* For small just reuse existing skb for next receive */ +static struct sk_buff *receive_copy(struct sky2_port *sky2, + const struct rx_ring_info *re, + unsigned length) +{ + struct sk_buff *skb; + + skb = netdev_alloc_skb_ip_align(sky2->netdev, length); + if (likely(skb)) { + dma_sync_single_for_cpu(&sky2->hw->pdev->dev, re->data_addr, + length, DMA_FROM_DEVICE); + skb_copy_from_linear_data(re->skb, skb->data, length); + skb->ip_summed = re->skb->ip_summed; + skb->csum = re->skb->csum; + skb_copy_hash(skb, re->skb); + __vlan_hwaccel_copy_tag(skb, re->skb); + + dma_sync_single_for_device(&sky2->hw->pdev->dev, + re->data_addr, length, + DMA_FROM_DEVICE); + __vlan_hwaccel_clear_tag(re->skb); + skb_clear_hash(re->skb); + re->skb->ip_summed = CHECKSUM_NONE; + skb_put(skb, length); + } + return skb; +} + +/* Adjust length of skb with fragments to match received data */ +static void skb_put_frags(struct sk_buff *skb, unsigned int hdr_space, + unsigned int length) +{ + int i, num_frags; + unsigned int size; + + /* put header into skb */ + size = min(length, hdr_space); + skb->tail += size; + skb->len += size; + length -= size; + + num_frags = skb_shinfo(skb)->nr_frags; + for (i = 0; i < num_frags; i++) { + skb_frag_t *frag = &skb_shinfo(skb)->frags[i]; + + if (length == 0) { + /* don't need this page */ + __skb_frag_unref(frag, false); + --skb_shinfo(skb)->nr_frags; + } else { + size = min(length, (unsigned) PAGE_SIZE); + + skb_frag_size_set(frag, size); + skb->data_len += size; + skb->truesize += PAGE_SIZE; + skb->len += size; + length -= size; + } + } +} + +/* Normal packet - take skb from ring element and put in a new one */ +static struct sk_buff *receive_new(struct sky2_port *sky2, + struct rx_ring_info *re, + unsigned int length) +{ + struct sk_buff *skb; + struct rx_ring_info nre; + unsigned hdr_space = sky2->rx_data_size; + + nre.skb = sky2_rx_alloc(sky2, GFP_ATOMIC); + if (unlikely(!nre.skb)) + goto nobuf; + + if (sky2_rx_map_skb(sky2->hw->pdev, &nre, hdr_space)) + goto nomap; + + skb = re->skb; + sky2_rx_unmap_skb(sky2->hw->pdev, re); + prefetch(skb->data); + *re = nre; + + if (skb_shinfo(skb)->nr_frags) + skb_put_frags(skb, hdr_space, length); + else + skb_put(skb, length); + return skb; + +nomap: + dev_kfree_skb(nre.skb); +nobuf: + return NULL; +} + +/* + * Receive one packet. + * For larger packets, get new buffer. + */ +static struct sk_buff *sky2_receive(struct net_device *dev, + u16 length, u32 status) +{ + struct sky2_port *sky2 = netdev_priv(dev); + struct rx_ring_info *re = sky2->rx_ring + sky2->rx_next; + struct sk_buff *skb = NULL; + u16 count = (status & GMR_FS_LEN) >> 16; + + netif_printk(sky2, rx_status, KERN_DEBUG, dev, + "rx slot %u status 0x%x len %d\n", + sky2->rx_next, status, length); + + sky2->rx_next = (sky2->rx_next + 1) % sky2->rx_pending; + prefetch(sky2->rx_ring + sky2->rx_next); + + if (skb_vlan_tag_present(re->skb)) + count -= VLAN_HLEN; /* Account for vlan tag */ + + /* This chip has hardware problems that generates bogus status. + * So do only marginal checking and expect higher level protocols + * to handle crap frames. + */ + if (sky2->hw->chip_id == CHIP_ID_YUKON_FE_P && + sky2->hw->chip_rev == CHIP_REV_YU_FE2_A0 && + length != count) + goto okay; + + if (status & GMR_FS_ANY_ERR) + goto error; + + if (!(status & GMR_FS_RX_OK)) + goto resubmit; + + /* if length reported by DMA does not match PHY, packet was truncated */ + if (length != count) + goto error; + +okay: + if (needs_copy(re, length)) + skb = receive_copy(sky2, re, length); + else + skb = receive_new(sky2, re, length); + + dev->stats.rx_dropped += (skb == NULL); + +resubmit: + sky2_rx_submit(sky2, re); + + return skb; + +error: + ++dev->stats.rx_errors; + + if (net_ratelimit()) + netif_info(sky2, rx_err, dev, + "rx error, status 0x%x length %d\n", status, length); + + goto resubmit; +} + +/* Transmit complete */ +static inline void sky2_tx_done(struct net_device *dev, u16 last) +{ + struct sky2_port *sky2 = netdev_priv(dev); + + if (netif_running(dev)) { + sky2_tx_complete(sky2, last); + + /* Wake unless it's detached, and called e.g. from sky2_close() */ + if (tx_avail(sky2) > MAX_SKB_TX_LE + 4) + netif_wake_queue(dev); + } +} + +static inline void sky2_skb_rx(const struct sky2_port *sky2, + struct sk_buff *skb) +{ + if (skb->ip_summed == CHECKSUM_NONE) + netif_receive_skb(skb); + else + napi_gro_receive(&sky2->hw->napi, skb); +} + +static inline void sky2_rx_done(struct sky2_hw *hw, unsigned port, + unsigned packets, unsigned bytes) +{ + struct net_device *dev = hw->dev[port]; + struct sky2_port *sky2 = netdev_priv(dev); + + if (packets == 0) + return; + + u64_stats_update_begin(&sky2->rx_stats.syncp); + sky2->rx_stats.packets += packets; + sky2->rx_stats.bytes += bytes; + u64_stats_update_end(&sky2->rx_stats.syncp); + + sky2->last_rx = jiffies; + sky2_rx_update(netdev_priv(dev), rxqaddr[port]); +} + +static void sky2_rx_checksum(struct sky2_port *sky2, u32 status) +{ + /* If this happens then driver assuming wrong format for chip type */ + BUG_ON(sky2->hw->flags & SKY2_HW_NEW_LE); + + /* Both checksum counters are programmed to start at + * the same offset, so unless there is a problem they + * should match. This failure is an early indication that + * hardware receive checksumming won't work. + */ + if (likely((u16)(status >> 16) == (u16)status)) { + struct sk_buff *skb = sky2->rx_ring[sky2->rx_next].skb; + skb->ip_summed = CHECKSUM_COMPLETE; + skb->csum = le16_to_cpu(status); + } else { + dev_notice(&sky2->hw->pdev->dev, + "%s: receive checksum problem (status = %#x)\n", + sky2->netdev->name, status); + + /* Disable checksum offload + * It will be reenabled on next ndo_set_features, but if it's + * really broken, will get disabled again + */ + sky2->netdev->features &= ~NETIF_F_RXCSUM; + sky2_write32(sky2->hw, Q_ADDR(rxqaddr[sky2->port], Q_CSR), + BMU_DIS_RX_CHKSUM); + } +} + +static void sky2_rx_tag(struct sky2_port *sky2, u16 length) +{ + struct sk_buff *skb; + + skb = sky2->rx_ring[sky2->rx_next].skb; + __vlan_hwaccel_put_tag(skb, htons(ETH_P_8021Q), be16_to_cpu(length)); +} + +static void sky2_rx_hash(struct sky2_port *sky2, u32 status) +{ + struct sk_buff *skb; + + skb = sky2->rx_ring[sky2->rx_next].skb; + skb_set_hash(skb, le32_to_cpu(status), PKT_HASH_TYPE_L3); +} + +/* Process status response ring */ +static int sky2_status_intr(struct sky2_hw *hw, int to_do, u16 idx) +{ + int work_done = 0; + unsigned int total_bytes[2] = { 0 }; + unsigned int total_packets[2] = { 0 }; + + if (to_do <= 0) + return work_done; + + rmb(); + do { + struct sky2_port *sky2; + struct sky2_status_le *le = hw->st_le + hw->st_idx; + unsigned port; + struct net_device *dev; + struct sk_buff *skb; + u32 status; + u16 length; + u8 opcode = le->opcode; + + if (!(opcode & HW_OWNER)) + break; + + hw->st_idx = RING_NEXT(hw->st_idx, hw->st_size); + + port = le->css & CSS_LINK_BIT; + dev = hw->dev[port]; + sky2 = netdev_priv(dev); + length = le16_to_cpu(le->length); + status = le32_to_cpu(le->status); + + le->opcode = 0; + switch (opcode & ~HW_OWNER) { + case OP_RXSTAT: + total_packets[port]++; + total_bytes[port] += length; + + skb = sky2_receive(dev, length, status); + if (!skb) + break; + + /* This chip reports checksum status differently */ + if (hw->flags & SKY2_HW_NEW_LE) { + if ((dev->features & NETIF_F_RXCSUM) && + (le->css & (CSS_ISIPV4 | CSS_ISIPV6)) && + (le->css & CSS_TCPUDPCSOK)) + skb->ip_summed = CHECKSUM_UNNECESSARY; + else + skb->ip_summed = CHECKSUM_NONE; + } + + skb->protocol = eth_type_trans(skb, dev); + sky2_skb_rx(sky2, skb); + + /* Stop after net poll weight */ + if (++work_done >= to_do) + goto exit_loop; + break; + + case OP_RXVLAN: + sky2_rx_tag(sky2, length); + break; + + case OP_RXCHKSVLAN: + sky2_rx_tag(sky2, length); + fallthrough; + case OP_RXCHKS: + if (likely(dev->features & NETIF_F_RXCSUM)) + sky2_rx_checksum(sky2, status); + break; + + case OP_RSS_HASH: + sky2_rx_hash(sky2, status); + break; + + case OP_TXINDEXLE: + /* TX index reports status for both ports */ + sky2_tx_done(hw->dev[0], status & 0xfff); + if (hw->dev[1]) + sky2_tx_done(hw->dev[1], + ((status >> 24) & 0xff) + | (u16)(length & 0xf) << 8); + break; + + default: + if (net_ratelimit()) + pr_warn("unknown status opcode 0x%x\n", opcode); + } + } while (hw->st_idx != idx); + + /* Fully processed status ring so clear irq */ + sky2_write32(hw, STAT_CTRL, SC_STAT_CLR_IRQ); + +exit_loop: + sky2_rx_done(hw, 0, total_packets[0], total_bytes[0]); + sky2_rx_done(hw, 1, total_packets[1], total_bytes[1]); + + return work_done; +} + +static void sky2_hw_error(struct sky2_hw *hw, unsigned port, u32 status) +{ + struct net_device *dev = hw->dev[port]; + + if (net_ratelimit()) + netdev_info(dev, "hw error interrupt status 0x%x\n", status); + + if (status & Y2_IS_PAR_RD1) { + if (net_ratelimit()) + netdev_err(dev, "ram data read parity error\n"); + /* Clear IRQ */ + sky2_write16(hw, RAM_BUFFER(port, B3_RI_CTRL), RI_CLR_RD_PERR); + } + + if (status & Y2_IS_PAR_WR1) { + if (net_ratelimit()) + netdev_err(dev, "ram data write parity error\n"); + + sky2_write16(hw, RAM_BUFFER(port, B3_RI_CTRL), RI_CLR_WR_PERR); + } + + if (status & Y2_IS_PAR_MAC1) { + if (net_ratelimit()) + netdev_err(dev, "MAC parity error\n"); + sky2_write8(hw, SK_REG(port, TX_GMF_CTRL_T), GMF_CLI_TX_PE); + } + + if (status & Y2_IS_PAR_RX1) { + if (net_ratelimit()) + netdev_err(dev, "RX parity error\n"); + sky2_write32(hw, Q_ADDR(rxqaddr[port], Q_CSR), BMU_CLR_IRQ_PAR); + } + + if (status & Y2_IS_TCP_TXA1) { + if (net_ratelimit()) + netdev_err(dev, "TCP segmentation error\n"); + sky2_write32(hw, Q_ADDR(txqaddr[port], Q_CSR), BMU_CLR_IRQ_TCP); + } +} + +static void sky2_hw_intr(struct sky2_hw *hw) +{ + struct pci_dev *pdev = hw->pdev; + u32 status = sky2_read32(hw, B0_HWE_ISRC); + u32 hwmsk = sky2_read32(hw, B0_HWE_IMSK); + + status &= hwmsk; + + if (status & Y2_IS_TIST_OV) + sky2_write8(hw, GMAC_TI_ST_CTRL, GMT_ST_CLR_IRQ); + + if (status & (Y2_IS_MST_ERR | Y2_IS_IRQ_STAT)) { + u16 pci_err; + + sky2_write8(hw, B2_TST_CTRL1, TST_CFG_WRITE_ON); + pci_err = sky2_pci_read16(hw, PCI_STATUS); + if (net_ratelimit()) + dev_err(&pdev->dev, "PCI hardware error (0x%x)\n", + pci_err); + + sky2_pci_write16(hw, PCI_STATUS, + pci_err | PCI_STATUS_ERROR_BITS); + sky2_write8(hw, B2_TST_CTRL1, TST_CFG_WRITE_OFF); + } + + if (status & Y2_IS_PCI_EXP) { + /* PCI-Express uncorrectable Error occurred */ + u32 err; + + sky2_write8(hw, B2_TST_CTRL1, TST_CFG_WRITE_ON); + err = sky2_read32(hw, Y2_CFG_AER + PCI_ERR_UNCOR_STATUS); + sky2_write32(hw, Y2_CFG_AER + PCI_ERR_UNCOR_STATUS, + 0xfffffffful); + if (net_ratelimit()) + dev_err(&pdev->dev, "PCI Express error (0x%x)\n", err); + + sky2_read32(hw, Y2_CFG_AER + PCI_ERR_UNCOR_STATUS); + sky2_write8(hw, B2_TST_CTRL1, TST_CFG_WRITE_OFF); + } + + if (status & Y2_HWE_L1_MASK) + sky2_hw_error(hw, 0, status); + status >>= 8; + if (status & Y2_HWE_L1_MASK) + sky2_hw_error(hw, 1, status); +} + +static void sky2_mac_intr(struct sky2_hw *hw, unsigned port) +{ + struct net_device *dev = hw->dev[port]; + struct sky2_port *sky2 = netdev_priv(dev); + u8 status = sky2_read8(hw, SK_REG(port, GMAC_IRQ_SRC)); + + netif_info(sky2, intr, dev, "mac interrupt status 0x%x\n", status); + + if (status & GM_IS_RX_CO_OV) + gma_read16(hw, port, GM_RX_IRQ_SRC); + + if (status & GM_IS_TX_CO_OV) + gma_read16(hw, port, GM_TX_IRQ_SRC); + + if (status & GM_IS_RX_FF_OR) { + ++dev->stats.rx_fifo_errors; + sky2_write8(hw, SK_REG(port, RX_GMF_CTRL_T), GMF_CLI_RX_FO); + } + + if (status & GM_IS_TX_FF_UR) { + ++dev->stats.tx_fifo_errors; + sky2_write8(hw, SK_REG(port, TX_GMF_CTRL_T), GMF_CLI_TX_FU); + } +} + +/* This should never happen it is a bug. */ +static void sky2_le_error(struct sky2_hw *hw, unsigned port, u16 q) +{ + struct net_device *dev = hw->dev[port]; + u16 idx = sky2_read16(hw, Y2_QADDR(q, PREF_UNIT_GET_IDX)); + + dev_err(&hw->pdev->dev, "%s: descriptor error q=%#x get=%u put=%u\n", + dev->name, (unsigned) q, (unsigned) idx, + (unsigned) sky2_read16(hw, Y2_QADDR(q, PREF_UNIT_PUT_IDX))); + + sky2_write32(hw, Q_ADDR(q, Q_CSR), BMU_CLR_IRQ_CHK); +} + +static int sky2_rx_hung(struct net_device *dev) +{ + struct sky2_port *sky2 = netdev_priv(dev); + struct sky2_hw *hw = sky2->hw; + unsigned port = sky2->port; + unsigned rxq = rxqaddr[port]; + u32 mac_rp = sky2_read32(hw, SK_REG(port, RX_GMF_RP)); + u8 mac_lev = sky2_read8(hw, SK_REG(port, RX_GMF_RLEV)); + u8 fifo_rp = sky2_read8(hw, Q_ADDR(rxq, Q_RP)); + u8 fifo_lev = sky2_read8(hw, Q_ADDR(rxq, Q_RL)); + + /* If idle and MAC or PCI is stuck */ + if (sky2->check.last == sky2->last_rx && + ((mac_rp == sky2->check.mac_rp && + mac_lev != 0 && mac_lev >= sky2->check.mac_lev) || + /* Check if the PCI RX hang */ + (fifo_rp == sky2->check.fifo_rp && + fifo_lev != 0 && fifo_lev >= sky2->check.fifo_lev))) { + netdev_printk(KERN_DEBUG, dev, + "hung mac %d:%d fifo %d (%d:%d)\n", + mac_lev, mac_rp, fifo_lev, + fifo_rp, sky2_read8(hw, Q_ADDR(rxq, Q_WP))); + return 1; + } else { + sky2->check.last = sky2->last_rx; + sky2->check.mac_rp = mac_rp; + sky2->check.mac_lev = mac_lev; + sky2->check.fifo_rp = fifo_rp; + sky2->check.fifo_lev = fifo_lev; + return 0; + } +} + +static void sky2_watchdog(struct timer_list *t) +{ + struct sky2_hw *hw = from_timer(hw, t, watchdog_timer); + + /* Check for lost IRQ once a second */ + if (sky2_read32(hw, B0_ISRC)) { + napi_schedule(&hw->napi); + } else { + int i, active = 0; + + for (i = 0; i < hw->ports; i++) { + struct net_device *dev = hw->dev[i]; + if (!netif_running(dev)) + continue; + ++active; + + /* For chips with Rx FIFO, check if stuck */ + if ((hw->flags & SKY2_HW_RAM_BUFFER) && + sky2_rx_hung(dev)) { + netdev_info(dev, "receiver hang detected\n"); + schedule_work(&hw->restart_work); + return; + } + } + + if (active == 0) + return; + } + + mod_timer(&hw->watchdog_timer, round_jiffies(jiffies + HZ)); +} + +/* Hardware/software error handling */ +static void sky2_err_intr(struct sky2_hw *hw, u32 status) +{ + if (net_ratelimit()) + dev_warn(&hw->pdev->dev, "error interrupt status=%#x\n", status); + + if (status & Y2_IS_HW_ERR) + sky2_hw_intr(hw); + + if (status & Y2_IS_IRQ_MAC1) + sky2_mac_intr(hw, 0); + + if (status & Y2_IS_IRQ_MAC2) + sky2_mac_intr(hw, 1); + + if (status & Y2_IS_CHK_RX1) + sky2_le_error(hw, 0, Q_R1); + + if (status & Y2_IS_CHK_RX2) + sky2_le_error(hw, 1, Q_R2); + + if (status & Y2_IS_CHK_TXA1) + sky2_le_error(hw, 0, Q_XA1); + + if (status & Y2_IS_CHK_TXA2) + sky2_le_error(hw, 1, Q_XA2); +} + +static int sky2_poll(struct napi_struct *napi, int work_limit) +{ + struct sky2_hw *hw = container_of(napi, struct sky2_hw, napi); + u32 status = sky2_read32(hw, B0_Y2_SP_EISR); + int work_done = 0; + u16 idx; + + if (unlikely(status & Y2_IS_ERROR)) + sky2_err_intr(hw, status); + + if (status & Y2_IS_IRQ_PHY1) + sky2_phy_intr(hw, 0); + + if (status & Y2_IS_IRQ_PHY2) + sky2_phy_intr(hw, 1); + + if (status & Y2_IS_PHY_QLNK) + sky2_qlink_intr(hw); + + while ((idx = sky2_read16(hw, STAT_PUT_IDX)) != hw->st_idx) { + work_done += sky2_status_intr(hw, work_limit - work_done, idx); + + if (work_done >= work_limit) + goto done; + } + + napi_complete_done(napi, work_done); + sky2_read32(hw, B0_Y2_SP_LISR); +done: + + return work_done; +} + +static irqreturn_t sky2_intr(int irq, void *dev_id) +{ + struct sky2_hw *hw = dev_id; + u32 status; + + /* Reading this mask interrupts as side effect */ + status = sky2_read32(hw, B0_Y2_SP_ISRC2); + if (status == 0 || status == ~0) { + sky2_write32(hw, B0_Y2_SP_ICR, 2); + return IRQ_NONE; + } + + prefetch(&hw->st_le[hw->st_idx]); + + napi_schedule(&hw->napi); + + return IRQ_HANDLED; +} + +#ifdef CONFIG_NET_POLL_CONTROLLER +static void sky2_netpoll(struct net_device *dev) +{ + struct sky2_port *sky2 = netdev_priv(dev); + + napi_schedule(&sky2->hw->napi); +} +#endif + +/* Chip internal frequency for clock calculations */ +static u32 sky2_mhz(const struct sky2_hw *hw) +{ + switch (hw->chip_id) { + case CHIP_ID_YUKON_EC: + case CHIP_ID_YUKON_EC_U: + case CHIP_ID_YUKON_EX: + case CHIP_ID_YUKON_SUPR: + case CHIP_ID_YUKON_UL_2: + case CHIP_ID_YUKON_OPT: + case CHIP_ID_YUKON_PRM: + case CHIP_ID_YUKON_OP_2: + return 125; + + case CHIP_ID_YUKON_FE: + return 100; + + case CHIP_ID_YUKON_FE_P: + return 50; + + case CHIP_ID_YUKON_XL: + return 156; + + default: + BUG(); + } +} + +static inline u32 sky2_us2clk(const struct sky2_hw *hw, u32 us) +{ + return sky2_mhz(hw) * us; +} + +static inline u32 sky2_clk2us(const struct sky2_hw *hw, u32 clk) +{ + return clk / sky2_mhz(hw); +} + + +static int sky2_init(struct sky2_hw *hw) +{ + u8 t8; + + /* Enable all clocks and check for bad PCI access */ + sky2_pci_write32(hw, PCI_DEV_REG3, 0); + + sky2_write8(hw, B0_CTST, CS_RST_CLR); + + hw->chip_id = sky2_read8(hw, B2_CHIP_ID); + hw->chip_rev = (sky2_read8(hw, B2_MAC_CFG) & CFG_CHIP_R_MSK) >> 4; + + switch (hw->chip_id) { + case CHIP_ID_YUKON_XL: + hw->flags = SKY2_HW_GIGABIT | SKY2_HW_NEWER_PHY; + if (hw->chip_rev < CHIP_REV_YU_XL_A2) + hw->flags |= SKY2_HW_RSS_BROKEN; + break; + + case CHIP_ID_YUKON_EC_U: + hw->flags = SKY2_HW_GIGABIT + | SKY2_HW_NEWER_PHY + | SKY2_HW_ADV_POWER_CTL; + break; + + case CHIP_ID_YUKON_EX: + hw->flags = SKY2_HW_GIGABIT + | SKY2_HW_NEWER_PHY + | SKY2_HW_NEW_LE + | SKY2_HW_ADV_POWER_CTL + | SKY2_HW_RSS_CHKSUM; + + /* New transmit checksum */ + if (hw->chip_rev != CHIP_REV_YU_EX_B0) + hw->flags |= SKY2_HW_AUTO_TX_SUM; + break; + + case CHIP_ID_YUKON_EC: + /* This rev is really old, and requires untested workarounds */ + if (hw->chip_rev == CHIP_REV_YU_EC_A1) { + dev_err(&hw->pdev->dev, "unsupported revision Yukon-EC rev A1\n"); + return -EOPNOTSUPP; + } + hw->flags = SKY2_HW_GIGABIT | SKY2_HW_RSS_BROKEN; + break; + + case CHIP_ID_YUKON_FE: + hw->flags = SKY2_HW_RSS_BROKEN; + break; + + case CHIP_ID_YUKON_FE_P: + hw->flags = SKY2_HW_NEWER_PHY + | SKY2_HW_NEW_LE + | SKY2_HW_AUTO_TX_SUM + | SKY2_HW_ADV_POWER_CTL; + + /* The workaround for status conflicts VLAN tag detection. */ + if (hw->chip_rev == CHIP_REV_YU_FE2_A0) + hw->flags |= SKY2_HW_VLAN_BROKEN | SKY2_HW_RSS_CHKSUM; + break; + + case CHIP_ID_YUKON_SUPR: + hw->flags = SKY2_HW_GIGABIT + | SKY2_HW_NEWER_PHY + | SKY2_HW_NEW_LE + | SKY2_HW_AUTO_TX_SUM + | SKY2_HW_ADV_POWER_CTL; + + if (hw->chip_rev == CHIP_REV_YU_SU_A0) + hw->flags |= SKY2_HW_RSS_CHKSUM; + break; + + case CHIP_ID_YUKON_UL_2: + hw->flags = SKY2_HW_GIGABIT + | SKY2_HW_ADV_POWER_CTL; + break; + + case CHIP_ID_YUKON_OPT: + case CHIP_ID_YUKON_PRM: + case CHIP_ID_YUKON_OP_2: + hw->flags = SKY2_HW_GIGABIT + | SKY2_HW_NEW_LE + | SKY2_HW_ADV_POWER_CTL; + break; + + default: + dev_err(&hw->pdev->dev, "unsupported chip type 0x%x\n", + hw->chip_id); + return -EOPNOTSUPP; + } + + hw->pmd_type = sky2_read8(hw, B2_PMD_TYP); + if (hw->pmd_type == 'L' || hw->pmd_type == 'S' || hw->pmd_type == 'P') + hw->flags |= SKY2_HW_FIBRE_PHY; + + hw->ports = 1; + t8 = sky2_read8(hw, B2_Y2_HW_RES); + if ((t8 & CFG_DUAL_MAC_MSK) == CFG_DUAL_MAC_MSK) { + if (!(sky2_read8(hw, B2_Y2_CLK_GATE) & Y2_STATUS_LNK2_INAC)) + ++hw->ports; + } + + if (sky2_read8(hw, B2_E_0)) + hw->flags |= SKY2_HW_RAM_BUFFER; + + return 0; +} + +static void sky2_reset(struct sky2_hw *hw) +{ + struct pci_dev *pdev = hw->pdev; + u16 status; + int i; + u32 hwe_mask = Y2_HWE_ALL_MASK; + + /* disable ASF */ + if (hw->chip_id == CHIP_ID_YUKON_EX + || hw->chip_id == CHIP_ID_YUKON_SUPR) { + sky2_write32(hw, CPU_WDOG, 0); + status = sky2_read16(hw, HCU_CCSR); + status &= ~(HCU_CCSR_AHB_RST | HCU_CCSR_CPU_RST_MODE | + HCU_CCSR_UC_STATE_MSK); + /* + * CPU clock divider shouldn't be used because + * - ASF firmware may malfunction + * - Yukon-Supreme: Parallel FLASH doesn't support divided clocks + */ + status &= ~HCU_CCSR_CPU_CLK_DIVIDE_MSK; + sky2_write16(hw, HCU_CCSR, status); + sky2_write32(hw, CPU_WDOG, 0); + } else + sky2_write8(hw, B28_Y2_ASF_STAT_CMD, Y2_ASF_RESET); + sky2_write16(hw, B0_CTST, Y2_ASF_DISABLE); + + /* do a SW reset */ + sky2_write8(hw, B0_CTST, CS_RST_SET); + sky2_write8(hw, B0_CTST, CS_RST_CLR); + + /* allow writes to PCI config */ + sky2_write8(hw, B2_TST_CTRL1, TST_CFG_WRITE_ON); + + /* clear PCI errors, if any */ + status = sky2_pci_read16(hw, PCI_STATUS); + status |= PCI_STATUS_ERROR_BITS; + sky2_pci_write16(hw, PCI_STATUS, status); + + sky2_write8(hw, B0_CTST, CS_MRST_CLR); + + if (pci_is_pcie(pdev)) { + sky2_write32(hw, Y2_CFG_AER + PCI_ERR_UNCOR_STATUS, + 0xfffffffful); + + /* If error bit is stuck on ignore it */ + if (sky2_read32(hw, B0_HWE_ISRC) & Y2_IS_PCI_EXP) + dev_info(&pdev->dev, "ignoring stuck error report bit\n"); + else + hwe_mask |= Y2_IS_PCI_EXP; + } + + sky2_power_on(hw); + sky2_write8(hw, B2_TST_CTRL1, TST_CFG_WRITE_OFF); + + for (i = 0; i < hw->ports; i++) { + sky2_write8(hw, SK_REG(i, GMAC_LINK_CTRL), GMLC_RST_SET); + sky2_write8(hw, SK_REG(i, GMAC_LINK_CTRL), GMLC_RST_CLR); + + if (hw->chip_id == CHIP_ID_YUKON_EX || + hw->chip_id == CHIP_ID_YUKON_SUPR) + sky2_write16(hw, SK_REG(i, GMAC_CTRL), + GMC_BYP_MACSECRX_ON | GMC_BYP_MACSECTX_ON + | GMC_BYP_RETR_ON); + + } + + if (hw->chip_id == CHIP_ID_YUKON_SUPR && hw->chip_rev > CHIP_REV_YU_SU_B0) { + /* enable MACSec clock gating */ + sky2_pci_write32(hw, PCI_DEV_REG3, P_CLK_MACSEC_DIS); + } + + if (hw->chip_id == CHIP_ID_YUKON_OPT || + hw->chip_id == CHIP_ID_YUKON_PRM || + hw->chip_id == CHIP_ID_YUKON_OP_2) { + u16 reg; + + if (hw->chip_id == CHIP_ID_YUKON_OPT && hw->chip_rev == 0) { + /* disable PCI-E PHY power down (set PHY reg 0x80, bit 7 */ + sky2_write32(hw, Y2_PEX_PHY_DATA, (0x80UL << 16) | (1 << 7)); + + /* set PHY Link Detect Timer to 1.1 second (11x 100ms) */ + reg = 10; + + /* re-enable PEX PM in PEX PHY debug reg. 8 (clear bit 12) */ + sky2_write32(hw, Y2_PEX_PHY_DATA, PEX_DB_ACCESS | (0x08UL << 16)); + } else { + /* set PHY Link Detect Timer to 0.4 second (4x 100ms) */ + reg = 3; + } + + reg <<= PSM_CONFIG_REG4_TIMER_PHY_LINK_DETECT_BASE; + reg |= PSM_CONFIG_REG4_RST_PHY_LINK_DETECT; + + /* reset PHY Link Detect */ + sky2_write8(hw, B2_TST_CTRL1, TST_CFG_WRITE_ON); + sky2_pci_write16(hw, PSM_CONFIG_REG4, reg); + + /* check if PSMv2 was running before */ + reg = sky2_pci_read16(hw, PSM_CONFIG_REG3); + if (reg & PCI_EXP_LNKCTL_ASPMC) + /* restore the PCIe Link Control register */ + sky2_pci_write16(hw, pdev->pcie_cap + PCI_EXP_LNKCTL, + reg); + + if (hw->chip_id == CHIP_ID_YUKON_PRM && + hw->chip_rev == CHIP_REV_YU_PRM_A0) { + /* change PHY Interrupt polarity to low active */ + reg = sky2_read16(hw, GPHY_CTRL); + sky2_write16(hw, GPHY_CTRL, reg | GPC_INTPOL); + + /* adapt HW for low active PHY Interrupt */ + reg = sky2_read16(hw, Y2_CFG_SPC + PCI_LDO_CTRL); + sky2_write16(hw, Y2_CFG_SPC + PCI_LDO_CTRL, reg | PHY_M_UNDOC1); + } + + sky2_write8(hw, B2_TST_CTRL1, TST_CFG_WRITE_OFF); + + /* re-enable PEX PM in PEX PHY debug reg. 8 (clear bit 12) */ + sky2_write32(hw, Y2_PEX_PHY_DATA, PEX_DB_ACCESS | (0x08UL << 16)); + } + + /* Clear I2C IRQ noise */ + sky2_write32(hw, B2_I2C_IRQ, 1); + + /* turn off hardware timer (unused) */ + sky2_write8(hw, B2_TI_CTRL, TIM_STOP); + sky2_write8(hw, B2_TI_CTRL, TIM_CLR_IRQ); + + /* Turn off descriptor polling */ + sky2_write32(hw, B28_DPT_CTRL, DPT_STOP); + + /* Turn off receive timestamp */ + sky2_write8(hw, GMAC_TI_ST_CTRL, GMT_ST_STOP); + sky2_write8(hw, GMAC_TI_ST_CTRL, GMT_ST_CLR_IRQ); + + /* enable the Tx Arbiters */ + for (i = 0; i < hw->ports; i++) + sky2_write8(hw, SK_REG(i, TXA_CTRL), TXA_ENA_ARB); + + /* Initialize ram interface */ + for (i = 0; i < hw->ports; i++) { + sky2_write8(hw, RAM_BUFFER(i, B3_RI_CTRL), RI_RST_CLR); + + sky2_write8(hw, RAM_BUFFER(i, B3_RI_WTO_R1), SK_RI_TO_53); + sky2_write8(hw, RAM_BUFFER(i, B3_RI_WTO_XA1), SK_RI_TO_53); + sky2_write8(hw, RAM_BUFFER(i, B3_RI_WTO_XS1), SK_RI_TO_53); + sky2_write8(hw, RAM_BUFFER(i, B3_RI_RTO_R1), SK_RI_TO_53); + sky2_write8(hw, RAM_BUFFER(i, B3_RI_RTO_XA1), SK_RI_TO_53); + sky2_write8(hw, RAM_BUFFER(i, B3_RI_RTO_XS1), SK_RI_TO_53); + sky2_write8(hw, RAM_BUFFER(i, B3_RI_WTO_R2), SK_RI_TO_53); + sky2_write8(hw, RAM_BUFFER(i, B3_RI_WTO_XA2), SK_RI_TO_53); + sky2_write8(hw, RAM_BUFFER(i, B3_RI_WTO_XS2), SK_RI_TO_53); + sky2_write8(hw, RAM_BUFFER(i, B3_RI_RTO_R2), SK_RI_TO_53); + sky2_write8(hw, RAM_BUFFER(i, B3_RI_RTO_XA2), SK_RI_TO_53); + sky2_write8(hw, RAM_BUFFER(i, B3_RI_RTO_XS2), SK_RI_TO_53); + } + + sky2_write32(hw, B0_HWE_IMSK, hwe_mask); + + for (i = 0; i < hw->ports; i++) + sky2_gmac_reset(hw, i); + + memset(hw->st_le, 0, hw->st_size * sizeof(struct sky2_status_le)); + hw->st_idx = 0; + + sky2_write32(hw, STAT_CTRL, SC_STAT_RST_SET); + sky2_write32(hw, STAT_CTRL, SC_STAT_RST_CLR); + + sky2_write32(hw, STAT_LIST_ADDR_LO, hw->st_dma); + sky2_write32(hw, STAT_LIST_ADDR_HI, (u64) hw->st_dma >> 32); + + /* Set the list last index */ + sky2_write16(hw, STAT_LAST_IDX, hw->st_size - 1); + + sky2_write16(hw, STAT_TX_IDX_TH, 10); + sky2_write8(hw, STAT_FIFO_WM, 16); + + /* set Status-FIFO ISR watermark */ + if (hw->chip_id == CHIP_ID_YUKON_XL && hw->chip_rev == 0) + sky2_write8(hw, STAT_FIFO_ISR_WM, 4); + else + sky2_write8(hw, STAT_FIFO_ISR_WM, 16); + + sky2_write32(hw, STAT_TX_TIMER_INI, sky2_us2clk(hw, 1000)); + sky2_write32(hw, STAT_ISR_TIMER_INI, sky2_us2clk(hw, 20)); + sky2_write32(hw, STAT_LEV_TIMER_INI, sky2_us2clk(hw, 100)); + + /* enable status unit */ + sky2_write32(hw, STAT_CTRL, SC_STAT_OP_ON); + + sky2_write8(hw, STAT_TX_TIMER_CTRL, TIM_START); + sky2_write8(hw, STAT_LEV_TIMER_CTRL, TIM_START); + sky2_write8(hw, STAT_ISR_TIMER_CTRL, TIM_START); +} + +/* Take device down (offline). + * Equivalent to doing dev_stop() but this does not + * inform upper layers of the transition. + */ +static void sky2_detach(struct net_device *dev) +{ + if (netif_running(dev)) { + netif_tx_lock(dev); + netif_device_detach(dev); /* stop txq */ + netif_tx_unlock(dev); + sky2_close(dev); + } +} + +/* Bring device back after doing sky2_detach */ +static int sky2_reattach(struct net_device *dev) +{ + int err = 0; + + if (netif_running(dev)) { + err = sky2_open(dev); + if (err) { + netdev_info(dev, "could not restart %d\n", err); + dev_close(dev); + } else { + netif_device_attach(dev); + sky2_set_multicast(dev); + } + } + + return err; +} + +static void sky2_all_down(struct sky2_hw *hw) +{ + int i; + + if (hw->flags & SKY2_HW_IRQ_SETUP) { + sky2_write32(hw, B0_IMSK, 0); + sky2_read32(hw, B0_IMSK); + + synchronize_irq(hw->pdev->irq); + napi_disable(&hw->napi); + } + + for (i = 0; i < hw->ports; i++) { + struct net_device *dev = hw->dev[i]; + struct sky2_port *sky2 = netdev_priv(dev); + + if (!netif_running(dev)) + continue; + + netif_carrier_off(dev); + netif_tx_disable(dev); + sky2_hw_down(sky2); + } +} + +static void sky2_all_up(struct sky2_hw *hw) +{ + u32 imask = Y2_IS_BASE; + int i; + + for (i = 0; i < hw->ports; i++) { + struct net_device *dev = hw->dev[i]; + struct sky2_port *sky2 = netdev_priv(dev); + + if (!netif_running(dev)) + continue; + + sky2_hw_up(sky2); + sky2_set_multicast(dev); + imask |= portirq_msk[i]; + netif_wake_queue(dev); + } + + if (hw->flags & SKY2_HW_IRQ_SETUP) { + sky2_write32(hw, B0_IMSK, imask); + sky2_read32(hw, B0_IMSK); + sky2_read32(hw, B0_Y2_SP_LISR); + napi_enable(&hw->napi); + } +} + +static void sky2_restart(struct work_struct *work) +{ + struct sky2_hw *hw = container_of(work, struct sky2_hw, restart_work); + + rtnl_lock(); + + sky2_all_down(hw); + sky2_reset(hw); + sky2_all_up(hw); + + rtnl_unlock(); +} + +static inline u8 sky2_wol_supported(const struct sky2_hw *hw) +{ + return sky2_is_copper(hw) ? (WAKE_PHY | WAKE_MAGIC) : 0; +} + +static void sky2_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol) +{ + const struct sky2_port *sky2 = netdev_priv(dev); + + wol->supported = sky2_wol_supported(sky2->hw); + wol->wolopts = sky2->wol; +} + +static int sky2_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol) +{ + struct sky2_port *sky2 = netdev_priv(dev); + struct sky2_hw *hw = sky2->hw; + bool enable_wakeup = false; + int i; + + if ((wol->wolopts & ~sky2_wol_supported(sky2->hw)) || + !device_can_wakeup(&hw->pdev->dev)) + return -EOPNOTSUPP; + + sky2->wol = wol->wolopts; + + for (i = 0; i < hw->ports; i++) { + struct net_device *dev = hw->dev[i]; + struct sky2_port *sky2 = netdev_priv(dev); + + if (sky2->wol) + enable_wakeup = true; + } + device_set_wakeup_enable(&hw->pdev->dev, enable_wakeup); + + return 0; +} + +static u32 sky2_supported_modes(const struct sky2_hw *hw) +{ + if (sky2_is_copper(hw)) { + u32 modes = SUPPORTED_10baseT_Half + | SUPPORTED_10baseT_Full + | SUPPORTED_100baseT_Half + | SUPPORTED_100baseT_Full; + + if (hw->flags & SKY2_HW_GIGABIT) + modes |= SUPPORTED_1000baseT_Half + | SUPPORTED_1000baseT_Full; + return modes; + } else + return SUPPORTED_1000baseT_Half + | SUPPORTED_1000baseT_Full; +} + +static int sky2_get_link_ksettings(struct net_device *dev, + struct ethtool_link_ksettings *cmd) +{ + struct sky2_port *sky2 = netdev_priv(dev); + struct sky2_hw *hw = sky2->hw; + u32 supported, advertising; + + supported = sky2_supported_modes(hw); + cmd->base.phy_address = PHY_ADDR_MARV; + if (sky2_is_copper(hw)) { + cmd->base.port = PORT_TP; + cmd->base.speed = sky2->speed; + supported |= SUPPORTED_Autoneg | SUPPORTED_TP; + } else { + cmd->base.speed = SPEED_1000; + cmd->base.port = PORT_FIBRE; + supported |= SUPPORTED_Autoneg | SUPPORTED_FIBRE; + } + + advertising = sky2->advertising; + cmd->base.autoneg = (sky2->flags & SKY2_FLAG_AUTO_SPEED) + ? AUTONEG_ENABLE : AUTONEG_DISABLE; + cmd->base.duplex = sky2->duplex; + + ethtool_convert_legacy_u32_to_link_mode(cmd->link_modes.supported, + supported); + ethtool_convert_legacy_u32_to_link_mode(cmd->link_modes.advertising, + advertising); + + return 0; +} + +static int sky2_set_link_ksettings(struct net_device *dev, + const struct ethtool_link_ksettings *cmd) +{ + struct sky2_port *sky2 = netdev_priv(dev); + const struct sky2_hw *hw = sky2->hw; + u32 supported = sky2_supported_modes(hw); + u32 new_advertising; + + ethtool_convert_link_mode_to_legacy_u32(&new_advertising, + cmd->link_modes.advertising); + + if (cmd->base.autoneg == AUTONEG_ENABLE) { + if (new_advertising & ~supported) + return -EINVAL; + + if (sky2_is_copper(hw)) + sky2->advertising = new_advertising | + ADVERTISED_TP | + ADVERTISED_Autoneg; + else + sky2->advertising = new_advertising | + ADVERTISED_FIBRE | + ADVERTISED_Autoneg; + + sky2->flags |= SKY2_FLAG_AUTO_SPEED; + sky2->duplex = -1; + sky2->speed = -1; + } else { + u32 setting; + u32 speed = cmd->base.speed; + + switch (speed) { + case SPEED_1000: + if (cmd->base.duplex == DUPLEX_FULL) + setting = SUPPORTED_1000baseT_Full; + else if (cmd->base.duplex == DUPLEX_HALF) + setting = SUPPORTED_1000baseT_Half; + else + return -EINVAL; + break; + case SPEED_100: + if (cmd->base.duplex == DUPLEX_FULL) + setting = SUPPORTED_100baseT_Full; + else if (cmd->base.duplex == DUPLEX_HALF) + setting = SUPPORTED_100baseT_Half; + else + return -EINVAL; + break; + + case SPEED_10: + if (cmd->base.duplex == DUPLEX_FULL) + setting = SUPPORTED_10baseT_Full; + else if (cmd->base.duplex == DUPLEX_HALF) + setting = SUPPORTED_10baseT_Half; + else + return -EINVAL; + break; + default: + return -EINVAL; + } + + if ((setting & supported) == 0) + return -EINVAL; + + sky2->speed = speed; + sky2->duplex = cmd->base.duplex; + sky2->flags &= ~SKY2_FLAG_AUTO_SPEED; + } + + if (netif_running(dev)) { + sky2_phy_reinit(sky2); + sky2_set_multicast(dev); + } + + return 0; +} + +static void sky2_get_drvinfo(struct net_device *dev, + struct ethtool_drvinfo *info) +{ + struct sky2_port *sky2 = netdev_priv(dev); + + strscpy(info->driver, DRV_NAME, sizeof(info->driver)); + strscpy(info->version, DRV_VERSION, sizeof(info->version)); + strscpy(info->bus_info, pci_name(sky2->hw->pdev), + sizeof(info->bus_info)); +} + +static const struct sky2_stat { + char name[ETH_GSTRING_LEN]; + u16 offset; +} sky2_stats[] = { + { "tx_bytes", GM_TXO_OK_HI }, + { "rx_bytes", GM_RXO_OK_HI }, + { "tx_broadcast", GM_TXF_BC_OK }, + { "rx_broadcast", GM_RXF_BC_OK }, + { "tx_multicast", GM_TXF_MC_OK }, + { "rx_multicast", GM_RXF_MC_OK }, + { "tx_unicast", GM_TXF_UC_OK }, + { "rx_unicast", GM_RXF_UC_OK }, + { "tx_mac_pause", GM_TXF_MPAUSE }, + { "rx_mac_pause", GM_RXF_MPAUSE }, + { "collisions", GM_TXF_COL }, + { "late_collision",GM_TXF_LAT_COL }, + { "aborted", GM_TXF_ABO_COL }, + { "single_collisions", GM_TXF_SNG_COL }, + { "multi_collisions", GM_TXF_MUL_COL }, + + { "rx_short", GM_RXF_SHT }, + { "rx_runt", GM_RXE_FRAG }, + { "rx_64_byte_packets", GM_RXF_64B }, + { "rx_65_to_127_byte_packets", GM_RXF_127B }, + { "rx_128_to_255_byte_packets", GM_RXF_255B }, + { "rx_256_to_511_byte_packets", GM_RXF_511B }, + { "rx_512_to_1023_byte_packets", GM_RXF_1023B }, + { "rx_1024_to_1518_byte_packets", GM_RXF_1518B }, + { "rx_1518_to_max_byte_packets", GM_RXF_MAX_SZ }, + { "rx_too_long", GM_RXF_LNG_ERR }, + { "rx_fifo_overflow", GM_RXE_FIFO_OV }, + { "rx_jabber", GM_RXF_JAB_PKT }, + { "rx_fcs_error", GM_RXF_FCS_ERR }, + + { "tx_64_byte_packets", GM_TXF_64B }, + { "tx_65_to_127_byte_packets", GM_TXF_127B }, + { "tx_128_to_255_byte_packets", GM_TXF_255B }, + { "tx_256_to_511_byte_packets", GM_TXF_511B }, + { "tx_512_to_1023_byte_packets", GM_TXF_1023B }, + { "tx_1024_to_1518_byte_packets", GM_TXF_1518B }, + { "tx_1519_to_max_byte_packets", GM_TXF_MAX_SZ }, + { "tx_fifo_underrun", GM_TXE_FIFO_UR }, +}; + +static u32 sky2_get_msglevel(struct net_device *netdev) +{ + struct sky2_port *sky2 = netdev_priv(netdev); + return sky2->msg_enable; +} + +static int sky2_nway_reset(struct net_device *dev) +{ + struct sky2_port *sky2 = netdev_priv(dev); + + if (!netif_running(dev) || !(sky2->flags & SKY2_FLAG_AUTO_SPEED)) + return -EINVAL; + + sky2_phy_reinit(sky2); + sky2_set_multicast(dev); + + return 0; +} + +static void sky2_phy_stats(struct sky2_port *sky2, u64 * data, unsigned count) +{ + struct sky2_hw *hw = sky2->hw; + unsigned port = sky2->port; + int i; + + data[0] = get_stats64(hw, port, GM_TXO_OK_LO); + data[1] = get_stats64(hw, port, GM_RXO_OK_LO); + + for (i = 2; i < count; i++) + data[i] = get_stats32(hw, port, sky2_stats[i].offset); +} + +static void sky2_set_msglevel(struct net_device *netdev, u32 value) +{ + struct sky2_port *sky2 = netdev_priv(netdev); + sky2->msg_enable = value; +} + +static int sky2_get_sset_count(struct net_device *dev, int sset) +{ + switch (sset) { + case ETH_SS_STATS: + return ARRAY_SIZE(sky2_stats); + default: + return -EOPNOTSUPP; + } +} + +static void sky2_get_ethtool_stats(struct net_device *dev, + struct ethtool_stats *stats, u64 * data) +{ + struct sky2_port *sky2 = netdev_priv(dev); + + sky2_phy_stats(sky2, data, ARRAY_SIZE(sky2_stats)); +} + +static void sky2_get_strings(struct net_device *dev, u32 stringset, u8 * data) +{ + int i; + + switch (stringset) { + case ETH_SS_STATS: + for (i = 0; i < ARRAY_SIZE(sky2_stats); i++) + memcpy(data + i * ETH_GSTRING_LEN, + sky2_stats[i].name, ETH_GSTRING_LEN); + break; + } +} + +static int sky2_set_mac_address(struct net_device *dev, void *p) +{ + struct sky2_port *sky2 = netdev_priv(dev); + struct sky2_hw *hw = sky2->hw; + unsigned port = sky2->port; + const struct sockaddr *addr = p; + + if (!is_valid_ether_addr(addr->sa_data)) + return -EADDRNOTAVAIL; + + eth_hw_addr_set(dev, addr->sa_data); + memcpy_toio(hw->regs + B2_MAC_1 + port * 8, + dev->dev_addr, ETH_ALEN); + memcpy_toio(hw->regs + B2_MAC_2 + port * 8, + dev->dev_addr, ETH_ALEN); + + /* virtual address for data */ + gma_set_addr(hw, port, GM_SRC_ADDR_2L, dev->dev_addr); + + /* physical address: used for pause frames */ + gma_set_addr(hw, port, GM_SRC_ADDR_1L, dev->dev_addr); + + return 0; +} + +static inline void sky2_add_filter(u8 filter[8], const u8 *addr) +{ + u32 bit; + + bit = ether_crc(ETH_ALEN, addr) & 63; + filter[bit >> 3] |= 1 << (bit & 7); +} + +static void sky2_set_multicast(struct net_device *dev) +{ + struct sky2_port *sky2 = netdev_priv(dev); + struct sky2_hw *hw = sky2->hw; + unsigned port = sky2->port; + struct netdev_hw_addr *ha; + u16 reg; + u8 filter[8]; + int rx_pause; + static const u8 pause_mc_addr[ETH_ALEN] = { 0x1, 0x80, 0xc2, 0x0, 0x0, 0x1 }; + + rx_pause = (sky2->flow_status == FC_RX || sky2->flow_status == FC_BOTH); + memset(filter, 0, sizeof(filter)); + + reg = gma_read16(hw, port, GM_RX_CTRL); + reg |= GM_RXCR_UCF_ENA; + + if (dev->flags & IFF_PROMISC) /* promiscuous */ + reg &= ~(GM_RXCR_UCF_ENA | GM_RXCR_MCF_ENA); + else if (dev->flags & IFF_ALLMULTI) + memset(filter, 0xff, sizeof(filter)); + else if (netdev_mc_empty(dev) && !rx_pause) + reg &= ~GM_RXCR_MCF_ENA; + else { + reg |= GM_RXCR_MCF_ENA; + + if (rx_pause) + sky2_add_filter(filter, pause_mc_addr); + + netdev_for_each_mc_addr(ha, dev) + sky2_add_filter(filter, ha->addr); + } + + gma_write16(hw, port, GM_MC_ADDR_H1, + (u16) filter[0] | ((u16) filter[1] << 8)); + gma_write16(hw, port, GM_MC_ADDR_H2, + (u16) filter[2] | ((u16) filter[3] << 8)); + gma_write16(hw, port, GM_MC_ADDR_H3, + (u16) filter[4] | ((u16) filter[5] << 8)); + gma_write16(hw, port, GM_MC_ADDR_H4, + (u16) filter[6] | ((u16) filter[7] << 8)); + + gma_write16(hw, port, GM_RX_CTRL, reg); +} + +static void sky2_get_stats(struct net_device *dev, + struct rtnl_link_stats64 *stats) +{ + struct sky2_port *sky2 = netdev_priv(dev); + struct sky2_hw *hw = sky2->hw; + unsigned port = sky2->port; + unsigned int start; + u64 _bytes, _packets; + + do { + start = u64_stats_fetch_begin_irq(&sky2->rx_stats.syncp); + _bytes = sky2->rx_stats.bytes; + _packets = sky2->rx_stats.packets; + } while (u64_stats_fetch_retry_irq(&sky2->rx_stats.syncp, start)); + + stats->rx_packets = _packets; + stats->rx_bytes = _bytes; + + do { + start = u64_stats_fetch_begin_irq(&sky2->tx_stats.syncp); + _bytes = sky2->tx_stats.bytes; + _packets = sky2->tx_stats.packets; + } while (u64_stats_fetch_retry_irq(&sky2->tx_stats.syncp, start)); + + stats->tx_packets = _packets; + stats->tx_bytes = _bytes; + + stats->multicast = get_stats32(hw, port, GM_RXF_MC_OK) + + get_stats32(hw, port, GM_RXF_BC_OK); + + stats->collisions = get_stats32(hw, port, GM_TXF_COL); + + stats->rx_length_errors = get_stats32(hw, port, GM_RXF_LNG_ERR); + stats->rx_crc_errors = get_stats32(hw, port, GM_RXF_FCS_ERR); + stats->rx_frame_errors = get_stats32(hw, port, GM_RXF_SHT) + + get_stats32(hw, port, GM_RXE_FRAG); + stats->rx_over_errors = get_stats32(hw, port, GM_RXE_FIFO_OV); + + stats->rx_dropped = dev->stats.rx_dropped; + stats->rx_fifo_errors = dev->stats.rx_fifo_errors; + stats->tx_fifo_errors = dev->stats.tx_fifo_errors; +} + +/* Can have one global because blinking is controlled by + * ethtool and that is always under RTNL mutex + */ +static void sky2_led(struct sky2_port *sky2, enum led_mode mode) +{ + struct sky2_hw *hw = sky2->hw; + unsigned port = sky2->port; + + spin_lock_bh(&sky2->phy_lock); + if (hw->chip_id == CHIP_ID_YUKON_EC_U || + hw->chip_id == CHIP_ID_YUKON_EX || + hw->chip_id == CHIP_ID_YUKON_SUPR) { + u16 pg; + pg = gm_phy_read(hw, port, PHY_MARV_EXT_ADR); + gm_phy_write(hw, port, PHY_MARV_EXT_ADR, 3); + + switch (mode) { + case MO_LED_OFF: + gm_phy_write(hw, port, PHY_MARV_PHY_CTRL, + PHY_M_LEDC_LOS_CTRL(8) | + PHY_M_LEDC_INIT_CTRL(8) | + PHY_M_LEDC_STA1_CTRL(8) | + PHY_M_LEDC_STA0_CTRL(8)); + break; + case MO_LED_ON: + gm_phy_write(hw, port, PHY_MARV_PHY_CTRL, + PHY_M_LEDC_LOS_CTRL(9) | + PHY_M_LEDC_INIT_CTRL(9) | + PHY_M_LEDC_STA1_CTRL(9) | + PHY_M_LEDC_STA0_CTRL(9)); + break; + case MO_LED_BLINK: + gm_phy_write(hw, port, PHY_MARV_PHY_CTRL, + PHY_M_LEDC_LOS_CTRL(0xa) | + PHY_M_LEDC_INIT_CTRL(0xa) | + PHY_M_LEDC_STA1_CTRL(0xa) | + PHY_M_LEDC_STA0_CTRL(0xa)); + break; + case MO_LED_NORM: + gm_phy_write(hw, port, PHY_MARV_PHY_CTRL, + PHY_M_LEDC_LOS_CTRL(1) | + PHY_M_LEDC_INIT_CTRL(8) | + PHY_M_LEDC_STA1_CTRL(7) | + PHY_M_LEDC_STA0_CTRL(7)); + } + + gm_phy_write(hw, port, PHY_MARV_EXT_ADR, pg); + } else + gm_phy_write(hw, port, PHY_MARV_LED_OVER, + PHY_M_LED_MO_DUP(mode) | + PHY_M_LED_MO_10(mode) | + PHY_M_LED_MO_100(mode) | + PHY_M_LED_MO_1000(mode) | + PHY_M_LED_MO_RX(mode) | + PHY_M_LED_MO_TX(mode)); + + spin_unlock_bh(&sky2->phy_lock); +} + +/* blink LED's for finding board */ +static int sky2_set_phys_id(struct net_device *dev, + enum ethtool_phys_id_state state) +{ + struct sky2_port *sky2 = netdev_priv(dev); + + switch (state) { + case ETHTOOL_ID_ACTIVE: + return 1; /* cycle on/off once per second */ + case ETHTOOL_ID_INACTIVE: + sky2_led(sky2, MO_LED_NORM); + break; + case ETHTOOL_ID_ON: + sky2_led(sky2, MO_LED_ON); + break; + case ETHTOOL_ID_OFF: + sky2_led(sky2, MO_LED_OFF); + break; + } + + return 0; +} + +static void sky2_get_pauseparam(struct net_device *dev, + struct ethtool_pauseparam *ecmd) +{ + struct sky2_port *sky2 = netdev_priv(dev); + + switch (sky2->flow_mode) { + case FC_NONE: + ecmd->tx_pause = ecmd->rx_pause = 0; + break; + case FC_TX: + ecmd->tx_pause = 1, ecmd->rx_pause = 0; + break; + case FC_RX: + ecmd->tx_pause = 0, ecmd->rx_pause = 1; + break; + case FC_BOTH: + ecmd->tx_pause = ecmd->rx_pause = 1; + } + + ecmd->autoneg = (sky2->flags & SKY2_FLAG_AUTO_PAUSE) + ? AUTONEG_ENABLE : AUTONEG_DISABLE; +} + +static int sky2_set_pauseparam(struct net_device *dev, + struct ethtool_pauseparam *ecmd) +{ + struct sky2_port *sky2 = netdev_priv(dev); + + if (ecmd->autoneg == AUTONEG_ENABLE) + sky2->flags |= SKY2_FLAG_AUTO_PAUSE; + else + sky2->flags &= ~SKY2_FLAG_AUTO_PAUSE; + + sky2->flow_mode = sky2_flow(ecmd->rx_pause, ecmd->tx_pause); + + if (netif_running(dev)) + sky2_phy_reinit(sky2); + + return 0; +} + +static int sky2_get_coalesce(struct net_device *dev, + struct ethtool_coalesce *ecmd, + struct kernel_ethtool_coalesce *kernel_coal, + struct netlink_ext_ack *extack) +{ + struct sky2_port *sky2 = netdev_priv(dev); + struct sky2_hw *hw = sky2->hw; + + if (sky2_read8(hw, STAT_TX_TIMER_CTRL) == TIM_STOP) + ecmd->tx_coalesce_usecs = 0; + else { + u32 clks = sky2_read32(hw, STAT_TX_TIMER_INI); + ecmd->tx_coalesce_usecs = sky2_clk2us(hw, clks); + } + ecmd->tx_max_coalesced_frames = sky2_read16(hw, STAT_TX_IDX_TH); + + if (sky2_read8(hw, STAT_LEV_TIMER_CTRL) == TIM_STOP) + ecmd->rx_coalesce_usecs = 0; + else { + u32 clks = sky2_read32(hw, STAT_LEV_TIMER_INI); + ecmd->rx_coalesce_usecs = sky2_clk2us(hw, clks); + } + ecmd->rx_max_coalesced_frames = sky2_read8(hw, STAT_FIFO_WM); + + if (sky2_read8(hw, STAT_ISR_TIMER_CTRL) == TIM_STOP) + ecmd->rx_coalesce_usecs_irq = 0; + else { + u32 clks = sky2_read32(hw, STAT_ISR_TIMER_INI); + ecmd->rx_coalesce_usecs_irq = sky2_clk2us(hw, clks); + } + + ecmd->rx_max_coalesced_frames_irq = sky2_read8(hw, STAT_FIFO_ISR_WM); + + return 0; +} + +/* Note: this affect both ports */ +static int sky2_set_coalesce(struct net_device *dev, + struct ethtool_coalesce *ecmd, + struct kernel_ethtool_coalesce *kernel_coal, + struct netlink_ext_ack *extack) +{ + struct sky2_port *sky2 = netdev_priv(dev); + struct sky2_hw *hw = sky2->hw; + const u32 tmax = sky2_clk2us(hw, 0x0ffffff); + + if (ecmd->tx_coalesce_usecs > tmax || + ecmd->rx_coalesce_usecs > tmax || + ecmd->rx_coalesce_usecs_irq > tmax) + return -EINVAL; + + if (ecmd->tx_max_coalesced_frames >= sky2->tx_ring_size-1) + return -EINVAL; + if (ecmd->rx_max_coalesced_frames > RX_MAX_PENDING) + return -EINVAL; + if (ecmd->rx_max_coalesced_frames_irq > RX_MAX_PENDING) + return -EINVAL; + + if (ecmd->tx_coalesce_usecs == 0) + sky2_write8(hw, STAT_TX_TIMER_CTRL, TIM_STOP); + else { + sky2_write32(hw, STAT_TX_TIMER_INI, + sky2_us2clk(hw, ecmd->tx_coalesce_usecs)); + sky2_write8(hw, STAT_TX_TIMER_CTRL, TIM_START); + } + sky2_write16(hw, STAT_TX_IDX_TH, ecmd->tx_max_coalesced_frames); + + if (ecmd->rx_coalesce_usecs == 0) + sky2_write8(hw, STAT_LEV_TIMER_CTRL, TIM_STOP); + else { + sky2_write32(hw, STAT_LEV_TIMER_INI, + sky2_us2clk(hw, ecmd->rx_coalesce_usecs)); + sky2_write8(hw, STAT_LEV_TIMER_CTRL, TIM_START); + } + sky2_write8(hw, STAT_FIFO_WM, ecmd->rx_max_coalesced_frames); + + if (ecmd->rx_coalesce_usecs_irq == 0) + sky2_write8(hw, STAT_ISR_TIMER_CTRL, TIM_STOP); + else { + sky2_write32(hw, STAT_ISR_TIMER_INI, + sky2_us2clk(hw, ecmd->rx_coalesce_usecs_irq)); + sky2_write8(hw, STAT_ISR_TIMER_CTRL, TIM_START); + } + sky2_write8(hw, STAT_FIFO_ISR_WM, ecmd->rx_max_coalesced_frames_irq); + return 0; +} + +/* + * Hardware is limited to min of 128 and max of 2048 for ring size + * and rounded up to next power of two + * to avoid division in modulus calculation + */ +static unsigned long roundup_ring_size(unsigned long pending) +{ + return max(128ul, roundup_pow_of_two(pending+1)); +} + +static void sky2_get_ringparam(struct net_device *dev, + struct ethtool_ringparam *ering, + struct kernel_ethtool_ringparam *kernel_ering, + struct netlink_ext_ack *extack) +{ + struct sky2_port *sky2 = netdev_priv(dev); + + ering->rx_max_pending = RX_MAX_PENDING; + ering->tx_max_pending = TX_MAX_PENDING; + + ering->rx_pending = sky2->rx_pending; + ering->tx_pending = sky2->tx_pending; +} + +static int sky2_set_ringparam(struct net_device *dev, + struct ethtool_ringparam *ering, + struct kernel_ethtool_ringparam *kernel_ering, + struct netlink_ext_ack *extack) +{ + struct sky2_port *sky2 = netdev_priv(dev); + + if (ering->rx_pending > RX_MAX_PENDING || + ering->rx_pending < 8 || + ering->tx_pending < TX_MIN_PENDING || + ering->tx_pending > TX_MAX_PENDING) + return -EINVAL; + + sky2_detach(dev); + + sky2->rx_pending = ering->rx_pending; + sky2->tx_pending = ering->tx_pending; + sky2->tx_ring_size = roundup_ring_size(sky2->tx_pending); + + return sky2_reattach(dev); +} + +static int sky2_get_regs_len(struct net_device *dev) +{ + return 0x4000; +} + +static int sky2_reg_access_ok(struct sky2_hw *hw, unsigned int b) +{ + /* This complicated switch statement is to make sure and + * only access regions that are unreserved. + * Some blocks are only valid on dual port cards. + */ + switch (b) { + /* second port */ + case 5: /* Tx Arbiter 2 */ + case 9: /* RX2 */ + case 14 ... 15: /* TX2 */ + case 17: case 19: /* Ram Buffer 2 */ + case 22 ... 23: /* Tx Ram Buffer 2 */ + case 25: /* Rx MAC Fifo 1 */ + case 27: /* Tx MAC Fifo 2 */ + case 31: /* GPHY 2 */ + case 40 ... 47: /* Pattern Ram 2 */ + case 52: case 54: /* TCP Segmentation 2 */ + case 112 ... 116: /* GMAC 2 */ + return hw->ports > 1; + + case 0: /* Control */ + case 2: /* Mac address */ + case 4: /* Tx Arbiter 1 */ + case 7: /* PCI express reg */ + case 8: /* RX1 */ + case 12 ... 13: /* TX1 */ + case 16: case 18:/* Rx Ram Buffer 1 */ + case 20 ... 21: /* Tx Ram Buffer 1 */ + case 24: /* Rx MAC Fifo 1 */ + case 26: /* Tx MAC Fifo 1 */ + case 28 ... 29: /* Descriptor and status unit */ + case 30: /* GPHY 1*/ + case 32 ... 39: /* Pattern Ram 1 */ + case 48: case 50: /* TCP Segmentation 1 */ + case 56 ... 60: /* PCI space */ + case 80 ... 84: /* GMAC 1 */ + return 1; + + default: + return 0; + } +} + +/* + * Returns copy of control register region + * Note: ethtool_get_regs always provides full size (16k) buffer + */ +static void sky2_get_regs(struct net_device *dev, struct ethtool_regs *regs, + void *p) +{ + const struct sky2_port *sky2 = netdev_priv(dev); + const void __iomem *io = sky2->hw->regs; + unsigned int b; + + regs->version = 1; + + for (b = 0; b < 128; b++) { + /* skip poisonous diagnostic ram region in block 3 */ + if (b == 3) + memcpy_fromio(p + 0x10, io + 0x10, 128 - 0x10); + else if (sky2_reg_access_ok(sky2->hw, b)) + memcpy_fromio(p, io, 128); + else + memset(p, 0, 128); + + p += 128; + io += 128; + } +} + +static int sky2_get_eeprom_len(struct net_device *dev) +{ + struct sky2_port *sky2 = netdev_priv(dev); + struct sky2_hw *hw = sky2->hw; + u16 reg2; + + reg2 = sky2_pci_read16(hw, PCI_DEV_REG2); + return 1 << ( ((reg2 & PCI_VPD_ROM_SZ) >> 14) + 8); +} + +static int sky2_get_eeprom(struct net_device *dev, struct ethtool_eeprom *eeprom, + u8 *data) +{ + struct sky2_port *sky2 = netdev_priv(dev); + int rc; + + eeprom->magic = SKY2_EEPROM_MAGIC; + rc = pci_read_vpd_any(sky2->hw->pdev, eeprom->offset, eeprom->len, + data); + if (rc < 0) + return rc; + + eeprom->len = rc; + + return 0; +} + +static int sky2_set_eeprom(struct net_device *dev, struct ethtool_eeprom *eeprom, + u8 *data) +{ + struct sky2_port *sky2 = netdev_priv(dev); + int rc; + + if (eeprom->magic != SKY2_EEPROM_MAGIC) + return -EINVAL; + + rc = pci_write_vpd_any(sky2->hw->pdev, eeprom->offset, eeprom->len, + data); + + return rc < 0 ? rc : 0; +} + +static netdev_features_t sky2_fix_features(struct net_device *dev, + netdev_features_t features) +{ + const struct sky2_port *sky2 = netdev_priv(dev); + const struct sky2_hw *hw = sky2->hw; + + /* In order to do Jumbo packets on these chips, need to turn off the + * transmit store/forward. Therefore checksum offload won't work. + */ + if (dev->mtu > ETH_DATA_LEN && hw->chip_id == CHIP_ID_YUKON_EC_U) { + netdev_info(dev, "checksum offload not possible with jumbo frames\n"); + features &= ~(NETIF_F_TSO | NETIF_F_SG | NETIF_F_CSUM_MASK); + } + + /* Some hardware requires receive checksum for RSS to work. */ + if ( (features & NETIF_F_RXHASH) && + !(features & NETIF_F_RXCSUM) && + (sky2->hw->flags & SKY2_HW_RSS_CHKSUM)) { + netdev_info(dev, "receive hashing forces receive checksum\n"); + features |= NETIF_F_RXCSUM; + } + + return features; +} + +static int sky2_set_features(struct net_device *dev, netdev_features_t features) +{ + struct sky2_port *sky2 = netdev_priv(dev); + netdev_features_t changed = dev->features ^ features; + + if ((changed & NETIF_F_RXCSUM) && + !(sky2->hw->flags & SKY2_HW_NEW_LE)) { + sky2_write32(sky2->hw, + Q_ADDR(rxqaddr[sky2->port], Q_CSR), + (features & NETIF_F_RXCSUM) + ? BMU_ENA_RX_CHKSUM : BMU_DIS_RX_CHKSUM); + } + + if (changed & NETIF_F_RXHASH) + rx_set_rss(dev, features); + + if (changed & (NETIF_F_HW_VLAN_CTAG_TX|NETIF_F_HW_VLAN_CTAG_RX)) + sky2_vlan_mode(dev, features); + + return 0; +} + +static const struct ethtool_ops sky2_ethtool_ops = { + .supported_coalesce_params = ETHTOOL_COALESCE_USECS | + ETHTOOL_COALESCE_MAX_FRAMES | + ETHTOOL_COALESCE_RX_USECS_IRQ | + ETHTOOL_COALESCE_RX_MAX_FRAMES_IRQ, + .get_drvinfo = sky2_get_drvinfo, + .get_wol = sky2_get_wol, + .set_wol = sky2_set_wol, + .get_msglevel = sky2_get_msglevel, + .set_msglevel = sky2_set_msglevel, + .nway_reset = sky2_nway_reset, + .get_regs_len = sky2_get_regs_len, + .get_regs = sky2_get_regs, + .get_link = ethtool_op_get_link, + .get_eeprom_len = sky2_get_eeprom_len, + .get_eeprom = sky2_get_eeprom, + .set_eeprom = sky2_set_eeprom, + .get_strings = sky2_get_strings, + .get_coalesce = sky2_get_coalesce, + .set_coalesce = sky2_set_coalesce, + .get_ringparam = sky2_get_ringparam, + .set_ringparam = sky2_set_ringparam, + .get_pauseparam = sky2_get_pauseparam, + .set_pauseparam = sky2_set_pauseparam, + .set_phys_id = sky2_set_phys_id, + .get_sset_count = sky2_get_sset_count, + .get_ethtool_stats = sky2_get_ethtool_stats, + .get_link_ksettings = sky2_get_link_ksettings, + .set_link_ksettings = sky2_set_link_ksettings, +}; + +#ifdef CONFIG_SKY2_DEBUG + +static struct dentry *sky2_debug; + +static int sky2_debug_show(struct seq_file *seq, void *v) +{ + struct net_device *dev = seq->private; + const struct sky2_port *sky2 = netdev_priv(dev); + struct sky2_hw *hw = sky2->hw; + unsigned port = sky2->port; + unsigned idx, last; + int sop; + + seq_printf(seq, "IRQ src=%x mask=%x control=%x\n", + sky2_read32(hw, B0_ISRC), + sky2_read32(hw, B0_IMSK), + sky2_read32(hw, B0_Y2_SP_ICR)); + + if (!netif_running(dev)) { + seq_puts(seq, "network not running\n"); + return 0; + } + + napi_disable(&hw->napi); + last = sky2_read16(hw, STAT_PUT_IDX); + + seq_printf(seq, "Status ring %u\n", hw->st_size); + if (hw->st_idx == last) + seq_puts(seq, "Status ring (empty)\n"); + else { + seq_puts(seq, "Status ring\n"); + for (idx = hw->st_idx; idx != last && idx < hw->st_size; + idx = RING_NEXT(idx, hw->st_size)) { + const struct sky2_status_le *le = hw->st_le + idx; + seq_printf(seq, "[%d] %#x %d %#x\n", + idx, le->opcode, le->length, le->status); + } + seq_puts(seq, "\n"); + } + + seq_printf(seq, "Tx ring pending=%u...%u report=%d done=%d\n", + sky2->tx_cons, sky2->tx_prod, + sky2_read16(hw, port == 0 ? STAT_TXA1_RIDX : STAT_TXA2_RIDX), + sky2_read16(hw, Q_ADDR(txqaddr[port], Q_DONE))); + + /* Dump contents of tx ring */ + sop = 1; + for (idx = sky2->tx_next; idx != sky2->tx_prod && idx < sky2->tx_ring_size; + idx = RING_NEXT(idx, sky2->tx_ring_size)) { + const struct sky2_tx_le *le = sky2->tx_le + idx; + u32 a = le32_to_cpu(le->addr); + + if (sop) + seq_printf(seq, "%u:", idx); + sop = 0; + + switch (le->opcode & ~HW_OWNER) { + case OP_ADDR64: + seq_printf(seq, " %#x:", a); + break; + case OP_LRGLEN: + seq_printf(seq, " mtu=%d", a); + break; + case OP_VLAN: + seq_printf(seq, " vlan=%d", be16_to_cpu(le->length)); + break; + case OP_TCPLISW: + seq_printf(seq, " csum=%#x", a); + break; + case OP_LARGESEND: + seq_printf(seq, " tso=%#x(%d)", a, le16_to_cpu(le->length)); + break; + case OP_PACKET: + seq_printf(seq, " %#x(%d)", a, le16_to_cpu(le->length)); + break; + case OP_BUFFER: + seq_printf(seq, " frag=%#x(%d)", a, le16_to_cpu(le->length)); + break; + default: + seq_printf(seq, " op=%#x,%#x(%d)", le->opcode, + a, le16_to_cpu(le->length)); + } + + if (le->ctrl & EOP) { + seq_putc(seq, '\n'); + sop = 1; + } + } + + seq_printf(seq, "\nRx ring hw get=%d put=%d last=%d\n", + sky2_read16(hw, Y2_QADDR(rxqaddr[port], PREF_UNIT_GET_IDX)), + sky2_read16(hw, Y2_QADDR(rxqaddr[port], PREF_UNIT_PUT_IDX)), + sky2_read16(hw, Y2_QADDR(rxqaddr[port], PREF_UNIT_LAST_IDX))); + + sky2_read32(hw, B0_Y2_SP_LISR); + napi_enable(&hw->napi); + return 0; +} +DEFINE_SHOW_ATTRIBUTE(sky2_debug); + +/* + * Use network device events to create/remove/rename + * debugfs file entries + */ +static int sky2_device_event(struct notifier_block *unused, + unsigned long event, void *ptr) +{ + struct net_device *dev = netdev_notifier_info_to_dev(ptr); + struct sky2_port *sky2 = netdev_priv(dev); + + if (dev->netdev_ops->ndo_open != sky2_open || !sky2_debug) + return NOTIFY_DONE; + + switch (event) { + case NETDEV_CHANGENAME: + if (sky2->debugfs) { + sky2->debugfs = debugfs_rename(sky2_debug, sky2->debugfs, + sky2_debug, dev->name); + } + break; + + case NETDEV_GOING_DOWN: + if (sky2->debugfs) { + netdev_printk(KERN_DEBUG, dev, "remove debugfs\n"); + debugfs_remove(sky2->debugfs); + sky2->debugfs = NULL; + } + break; + + case NETDEV_UP: + sky2->debugfs = debugfs_create_file(dev->name, 0444, + sky2_debug, dev, + &sky2_debug_fops); + if (IS_ERR(sky2->debugfs)) + sky2->debugfs = NULL; + } + + return NOTIFY_DONE; +} + +static struct notifier_block sky2_notifier = { + .notifier_call = sky2_device_event, +}; + + +static __init void sky2_debug_init(void) +{ + struct dentry *ent; + + ent = debugfs_create_dir("sky2", NULL); + if (!ent || IS_ERR(ent)) + return; + + sky2_debug = ent; + register_netdevice_notifier(&sky2_notifier); +} + +static __exit void sky2_debug_cleanup(void) +{ + if (sky2_debug) { + unregister_netdevice_notifier(&sky2_notifier); + debugfs_remove(sky2_debug); + sky2_debug = NULL; + } +} + +#else +#define sky2_debug_init() +#define sky2_debug_cleanup() +#endif + +/* Two copies of network device operations to handle special case of + * not allowing netpoll on second port + */ +static const struct net_device_ops sky2_netdev_ops[2] = { + { + .ndo_open = sky2_open, + .ndo_stop = sky2_close, + .ndo_start_xmit = sky2_xmit_frame, + .ndo_eth_ioctl = sky2_ioctl, + .ndo_validate_addr = eth_validate_addr, + .ndo_set_mac_address = sky2_set_mac_address, + .ndo_set_rx_mode = sky2_set_multicast, + .ndo_change_mtu = sky2_change_mtu, + .ndo_fix_features = sky2_fix_features, + .ndo_set_features = sky2_set_features, + .ndo_tx_timeout = sky2_tx_timeout, + .ndo_get_stats64 = sky2_get_stats, +#ifdef CONFIG_NET_POLL_CONTROLLER + .ndo_poll_controller = sky2_netpoll, +#endif + }, + { + .ndo_open = sky2_open, + .ndo_stop = sky2_close, + .ndo_start_xmit = sky2_xmit_frame, + .ndo_eth_ioctl = sky2_ioctl, + .ndo_validate_addr = eth_validate_addr, + .ndo_set_mac_address = sky2_set_mac_address, + .ndo_set_rx_mode = sky2_set_multicast, + .ndo_change_mtu = sky2_change_mtu, + .ndo_fix_features = sky2_fix_features, + .ndo_set_features = sky2_set_features, + .ndo_tx_timeout = sky2_tx_timeout, + .ndo_get_stats64 = sky2_get_stats, + }, +}; + +/* Initialize network device */ +static struct net_device *sky2_init_netdev(struct sky2_hw *hw, unsigned port, + int highmem, int wol) +{ + struct sky2_port *sky2; + struct net_device *dev = alloc_etherdev(sizeof(*sky2)); + int ret; + + if (!dev) + return NULL; + + SET_NETDEV_DEV(dev, &hw->pdev->dev); + dev->irq = hw->pdev->irq; + dev->ethtool_ops = &sky2_ethtool_ops; + dev->watchdog_timeo = TX_WATCHDOG; + dev->netdev_ops = &sky2_netdev_ops[port]; + + sky2 = netdev_priv(dev); + sky2->netdev = dev; + sky2->hw = hw; + sky2->msg_enable = netif_msg_init(debug, default_msg); + + u64_stats_init(&sky2->tx_stats.syncp); + u64_stats_init(&sky2->rx_stats.syncp); + + /* Auto speed and flow control */ + sky2->flags = SKY2_FLAG_AUTO_SPEED | SKY2_FLAG_AUTO_PAUSE; + if (hw->chip_id != CHIP_ID_YUKON_XL) + dev->hw_features |= NETIF_F_RXCSUM; + + sky2->flow_mode = FC_BOTH; + + sky2->duplex = -1; + sky2->speed = -1; + sky2->advertising = sky2_supported_modes(hw); + sky2->wol = wol; + + spin_lock_init(&sky2->phy_lock); + + sky2->tx_pending = TX_DEF_PENDING; + sky2->tx_ring_size = roundup_ring_size(TX_DEF_PENDING); + sky2->rx_pending = RX_DEF_PENDING; + + hw->dev[port] = dev; + + sky2->port = port; + + dev->hw_features |= NETIF_F_IP_CSUM | NETIF_F_SG | NETIF_F_TSO; + + if (highmem) + dev->features |= NETIF_F_HIGHDMA; + + /* Enable receive hashing unless hardware is known broken */ + if (!(hw->flags & SKY2_HW_RSS_BROKEN)) + dev->hw_features |= NETIF_F_RXHASH; + + if (!(hw->flags & SKY2_HW_VLAN_BROKEN)) { + dev->hw_features |= NETIF_F_HW_VLAN_CTAG_TX | + NETIF_F_HW_VLAN_CTAG_RX; + dev->vlan_features |= SKY2_VLAN_OFFLOADS; + } + + dev->features |= dev->hw_features; + + /* MTU range: 60 - 1500 or 9000 */ + dev->min_mtu = ETH_ZLEN; + if (hw->chip_id == CHIP_ID_YUKON_FE || + hw->chip_id == CHIP_ID_YUKON_FE_P) + dev->max_mtu = ETH_DATA_LEN; + else + dev->max_mtu = ETH_JUMBO_MTU; + + /* try to get mac address in the following order: + * 1) from device tree data + * 2) from internal registers set by bootloader + */ + ret = of_get_ethdev_address(hw->pdev->dev.of_node, dev); + if (ret) { + u8 addr[ETH_ALEN]; + + memcpy_fromio(addr, hw->regs + B2_MAC_1 + port * 8, ETH_ALEN); + eth_hw_addr_set(dev, addr); + } + + /* if the address is invalid, use a random value */ + if (!is_valid_ether_addr(dev->dev_addr)) { + struct sockaddr sa = { AF_UNSPEC }; + + dev_warn(&hw->pdev->dev, "Invalid MAC address, defaulting to random\n"); + eth_hw_addr_random(dev); + memcpy(sa.sa_data, dev->dev_addr, ETH_ALEN); + if (sky2_set_mac_address(dev, &sa)) + dev_warn(&hw->pdev->dev, "Failed to set MAC address.\n"); + } + + return dev; +} + +static void sky2_show_addr(struct net_device *dev) +{ + const struct sky2_port *sky2 = netdev_priv(dev); + + netif_info(sky2, probe, dev, "addr %pM\n", dev->dev_addr); +} + +/* Handle software interrupt used during MSI test */ +static irqreturn_t sky2_test_intr(int irq, void *dev_id) +{ + struct sky2_hw *hw = dev_id; + u32 status = sky2_read32(hw, B0_Y2_SP_ISRC2); + + if (status == 0) + return IRQ_NONE; + + if (status & Y2_IS_IRQ_SW) { + hw->flags |= SKY2_HW_USE_MSI; + wake_up(&hw->msi_wait); + sky2_write8(hw, B0_CTST, CS_CL_SW_IRQ); + } + sky2_write32(hw, B0_Y2_SP_ICR, 2); + + return IRQ_HANDLED; +} + +/* Test interrupt path by forcing a software IRQ */ +static int sky2_test_msi(struct sky2_hw *hw) +{ + struct pci_dev *pdev = hw->pdev; + int err; + + init_waitqueue_head(&hw->msi_wait); + + err = request_irq(pdev->irq, sky2_test_intr, 0, DRV_NAME, hw); + if (err) { + dev_err(&pdev->dev, "cannot assign irq %d\n", pdev->irq); + return err; + } + + sky2_write32(hw, B0_IMSK, Y2_IS_IRQ_SW); + + sky2_write8(hw, B0_CTST, CS_ST_SW_IRQ); + sky2_read8(hw, B0_CTST); + + wait_event_timeout(hw->msi_wait, (hw->flags & SKY2_HW_USE_MSI), HZ/10); + + if (!(hw->flags & SKY2_HW_USE_MSI)) { + /* MSI test failed, go back to INTx mode */ + dev_info(&pdev->dev, "No interrupt generated using MSI, " + "switching to INTx mode.\n"); + + err = -EOPNOTSUPP; + sky2_write8(hw, B0_CTST, CS_CL_SW_IRQ); + } + + sky2_write32(hw, B0_IMSK, 0); + sky2_read32(hw, B0_IMSK); + + free_irq(pdev->irq, hw); + + return err; +} + +/* This driver supports yukon2 chipset only */ +static const char *sky2_name(u8 chipid, char *buf, int sz) +{ + static const char *const name[] = { + "XL", /* 0xb3 */ + "EC Ultra", /* 0xb4 */ + "Extreme", /* 0xb5 */ + "EC", /* 0xb6 */ + "FE", /* 0xb7 */ + "FE+", /* 0xb8 */ + "Supreme", /* 0xb9 */ + "UL 2", /* 0xba */ + "Unknown", /* 0xbb */ + "Optima", /* 0xbc */ + "OptimaEEE", /* 0xbd */ + "Optima 2", /* 0xbe */ + }; + + if (chipid >= CHIP_ID_YUKON_XL && chipid <= CHIP_ID_YUKON_OP_2) + snprintf(buf, sz, "%s", name[chipid - CHIP_ID_YUKON_XL]); + else + snprintf(buf, sz, "(chip %#x)", chipid); + return buf; +} + +static const struct dmi_system_id msi_blacklist[] = { + { + .ident = "Dell Inspiron 1545", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), + DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 1545"), + }, + }, + { + .ident = "Gateway P-79", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Gateway"), + DMI_MATCH(DMI_PRODUCT_NAME, "P-79"), + }, + }, + { + .ident = "ASUS P5W DH Deluxe", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "ASUSTEK COMPUTER INC"), + DMI_MATCH(DMI_PRODUCT_NAME, "P5W DH Deluxe"), + }, + }, + { + .ident = "ASUS P6T", + .matches = { + DMI_MATCH(DMI_BOARD_VENDOR, "ASUSTeK Computer INC."), + DMI_MATCH(DMI_BOARD_NAME, "P6T"), + }, + }, + { + .ident = "ASUS P6X", + .matches = { + DMI_MATCH(DMI_BOARD_VENDOR, "ASUSTeK Computer INC."), + DMI_MATCH(DMI_BOARD_NAME, "P6X"), + }, + }, + {} +}; + +static int sky2_probe(struct pci_dev *pdev, const struct pci_device_id *ent) +{ + struct net_device *dev, *dev1; + struct sky2_hw *hw; + int err, using_dac = 0, wol_default; + u32 reg; + char buf1[16]; + + err = pci_enable_device(pdev); + if (err) { + dev_err(&pdev->dev, "cannot enable PCI device\n"); + goto err_out; + } + + /* Get configuration information + * Note: only regular PCI config access once to test for HW issues + * other PCI access through shared memory for speed and to + * avoid MMCONFIG problems. + */ + err = pci_read_config_dword(pdev, PCI_DEV_REG2, ®); + if (err) { + dev_err(&pdev->dev, "PCI read config failed\n"); + goto err_out_disable; + } + + if (~reg == 0) { + dev_err(&pdev->dev, "PCI configuration read error\n"); + err = -EIO; + goto err_out_disable; + } + + err = pci_request_regions(pdev, DRV_NAME); + if (err) { + dev_err(&pdev->dev, "cannot obtain PCI resources\n"); + goto err_out_disable; + } + + pci_set_master(pdev); + + if (sizeof(dma_addr_t) > sizeof(u32) && + !dma_set_mask(&pdev->dev, DMA_BIT_MASK(64))) { + using_dac = 1; + err = dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(64)); + if (err < 0) { + dev_err(&pdev->dev, "unable to obtain 64 bit DMA " + "for consistent allocations\n"); + goto err_out_free_regions; + } + } else { + err = dma_set_mask(&pdev->dev, DMA_BIT_MASK(32)); + if (err) { + dev_err(&pdev->dev, "no usable DMA configuration\n"); + goto err_out_free_regions; + } + } + + +#ifdef __BIG_ENDIAN + /* The sk98lin vendor driver uses hardware byte swapping but + * this driver uses software swapping. + */ + reg &= ~PCI_REV_DESC; + err = pci_write_config_dword(pdev, PCI_DEV_REG2, reg); + if (err) { + dev_err(&pdev->dev, "PCI write config failed\n"); + goto err_out_free_regions; + } +#endif + + wol_default = device_may_wakeup(&pdev->dev) ? WAKE_MAGIC : 0; + + err = -ENOMEM; + + hw = kzalloc(sizeof(*hw) + strlen(DRV_NAME "@pci:") + + strlen(pci_name(pdev)) + 1, GFP_KERNEL); + if (!hw) + goto err_out_free_regions; + + hw->pdev = pdev; + sprintf(hw->irq_name, DRV_NAME "@pci:%s", pci_name(pdev)); + + hw->regs = ioremap(pci_resource_start(pdev, 0), 0x4000); + if (!hw->regs) { + dev_err(&pdev->dev, "cannot map device registers\n"); + goto err_out_free_hw; + } + + err = sky2_init(hw); + if (err) + goto err_out_iounmap; + + /* ring for status responses */ + hw->st_size = hw->ports * roundup_pow_of_two(3*RX_MAX_PENDING + TX_MAX_PENDING); + hw->st_le = dma_alloc_coherent(&pdev->dev, + hw->st_size * sizeof(struct sky2_status_le), + &hw->st_dma, GFP_KERNEL); + if (!hw->st_le) { + err = -ENOMEM; + goto err_out_reset; + } + + dev_info(&pdev->dev, "Yukon-2 %s chip revision %d\n", + sky2_name(hw->chip_id, buf1, sizeof(buf1)), hw->chip_rev); + + sky2_reset(hw); + + dev = sky2_init_netdev(hw, 0, using_dac, wol_default); + if (!dev) { + err = -ENOMEM; + goto err_out_free_pci; + } + + if (disable_msi == -1) + disable_msi = !!dmi_check_system(msi_blacklist); + + if (!disable_msi && pci_enable_msi(pdev) == 0) { + err = sky2_test_msi(hw); + if (err) { + pci_disable_msi(pdev); + if (err != -EOPNOTSUPP) + goto err_out_free_netdev; + } + } + + netif_napi_add(dev, &hw->napi, sky2_poll); + + err = register_netdev(dev); + if (err) { + dev_err(&pdev->dev, "cannot register net device\n"); + goto err_out_free_netdev; + } + + netif_carrier_off(dev); + + sky2_show_addr(dev); + + if (hw->ports > 1) { + dev1 = sky2_init_netdev(hw, 1, using_dac, wol_default); + if (!dev1) { + err = -ENOMEM; + goto err_out_unregister; + } + + err = register_netdev(dev1); + if (err) { + dev_err(&pdev->dev, "cannot register second net device\n"); + goto err_out_free_dev1; + } + + err = sky2_setup_irq(hw, hw->irq_name); + if (err) + goto err_out_unregister_dev1; + + sky2_show_addr(dev1); + } + + timer_setup(&hw->watchdog_timer, sky2_watchdog, 0); + INIT_WORK(&hw->restart_work, sky2_restart); + + pci_set_drvdata(pdev, hw); + pdev->d3hot_delay = 300; + + return 0; + +err_out_unregister_dev1: + unregister_netdev(dev1); +err_out_free_dev1: + free_netdev(dev1); +err_out_unregister: + unregister_netdev(dev); +err_out_free_netdev: + if (hw->flags & SKY2_HW_USE_MSI) + pci_disable_msi(pdev); + free_netdev(dev); +err_out_free_pci: + dma_free_coherent(&pdev->dev, + hw->st_size * sizeof(struct sky2_status_le), + hw->st_le, hw->st_dma); +err_out_reset: + sky2_write8(hw, B0_CTST, CS_RST_SET); +err_out_iounmap: + iounmap(hw->regs); +err_out_free_hw: + kfree(hw); +err_out_free_regions: + pci_release_regions(pdev); +err_out_disable: + pci_disable_device(pdev); +err_out: + return err; +} + +static void sky2_remove(struct pci_dev *pdev) +{ + struct sky2_hw *hw = pci_get_drvdata(pdev); + int i; + + if (!hw) + return; + + del_timer_sync(&hw->watchdog_timer); + cancel_work_sync(&hw->restart_work); + + for (i = hw->ports-1; i >= 0; --i) + unregister_netdev(hw->dev[i]); + + sky2_write32(hw, B0_IMSK, 0); + sky2_read32(hw, B0_IMSK); + + sky2_power_aux(hw); + + sky2_write8(hw, B0_CTST, CS_RST_SET); + sky2_read8(hw, B0_CTST); + + if (hw->ports > 1) { + napi_disable(&hw->napi); + free_irq(pdev->irq, hw); + } + + if (hw->flags & SKY2_HW_USE_MSI) + pci_disable_msi(pdev); + dma_free_coherent(&pdev->dev, + hw->st_size * sizeof(struct sky2_status_le), + hw->st_le, hw->st_dma); + pci_release_regions(pdev); + pci_disable_device(pdev); + + for (i = hw->ports-1; i >= 0; --i) + free_netdev(hw->dev[i]); + + iounmap(hw->regs); + kfree(hw); +} + +static int sky2_suspend(struct device *dev) +{ + struct sky2_hw *hw = dev_get_drvdata(dev); + int i; + + if (!hw) + return 0; + + del_timer_sync(&hw->watchdog_timer); + cancel_work_sync(&hw->restart_work); + + rtnl_lock(); + + sky2_all_down(hw); + for (i = 0; i < hw->ports; i++) { + struct net_device *dev = hw->dev[i]; + struct sky2_port *sky2 = netdev_priv(dev); + + if (sky2->wol) + sky2_wol_init(sky2); + } + + sky2_power_aux(hw); + rtnl_unlock(); + + return 0; +} + +#ifdef CONFIG_PM_SLEEP +static int sky2_resume(struct device *dev) +{ + struct pci_dev *pdev = to_pci_dev(dev); + struct sky2_hw *hw = pci_get_drvdata(pdev); + int err; + + if (!hw) + return 0; + + /* Re-enable all clocks */ + err = pci_write_config_dword(pdev, PCI_DEV_REG3, 0); + if (err) { + dev_err(&pdev->dev, "PCI write config failed\n"); + goto out; + } + + rtnl_lock(); + sky2_reset(hw); + sky2_all_up(hw); + rtnl_unlock(); + + return 0; +out: + + dev_err(&pdev->dev, "resume failed (%d)\n", err); + pci_disable_device(pdev); + return err; +} + +static SIMPLE_DEV_PM_OPS(sky2_pm_ops, sky2_suspend, sky2_resume); +#define SKY2_PM_OPS (&sky2_pm_ops) + +#else + +#define SKY2_PM_OPS NULL +#endif + +static void sky2_shutdown(struct pci_dev *pdev) +{ + struct sky2_hw *hw = pci_get_drvdata(pdev); + int port; + + for (port = 0; port < hw->ports; port++) { + struct net_device *ndev = hw->dev[port]; + + rtnl_lock(); + if (netif_running(ndev)) { + dev_close(ndev); + netif_device_detach(ndev); + } + rtnl_unlock(); + } + sky2_suspend(&pdev->dev); + pci_wake_from_d3(pdev, device_may_wakeup(&pdev->dev)); + pci_set_power_state(pdev, PCI_D3hot); +} + +static struct pci_driver sky2_driver = { + .name = DRV_NAME, + .id_table = sky2_id_table, + .probe = sky2_probe, + .remove = sky2_remove, + .shutdown = sky2_shutdown, + .driver.pm = SKY2_PM_OPS, +}; + +static int __init sky2_init_module(void) +{ + pr_info("driver version " DRV_VERSION "\n"); + + sky2_debug_init(); + return pci_register_driver(&sky2_driver); +} + +static void __exit sky2_cleanup_module(void) +{ + pci_unregister_driver(&sky2_driver); + sky2_debug_cleanup(); +} + +module_init(sky2_init_module); +module_exit(sky2_cleanup_module); + +MODULE_DESCRIPTION("Marvell Yukon 2 Gigabit Ethernet driver"); +MODULE_AUTHOR("Stephen Hemminger <shemminger@linux-foundation.org>"); +MODULE_LICENSE("GPL"); +MODULE_VERSION(DRV_VERSION); diff --git a/drivers/net/ethernet/marvell/sky2.h b/drivers/net/ethernet/marvell/sky2.h new file mode 100644 index 000000000..8d0bacf4e --- /dev/null +++ b/drivers/net/ethernet/marvell/sky2.h @@ -0,0 +1,2428 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * Definitions for the new Marvell Yukon 2 driver. + */ +#ifndef _SKY2_H +#define _SKY2_H + +#define ETH_JUMBO_MTU 9000 /* Maximum MTU supported */ + +/* PCI config registers */ +enum { + PCI_DEV_REG1 = 0x40, + PCI_DEV_REG2 = 0x44, + PCI_DEV_STATUS = 0x7c, + PCI_DEV_REG3 = 0x80, + PCI_DEV_REG4 = 0x84, + PCI_DEV_REG5 = 0x88, + PCI_CFG_REG_0 = 0x90, + PCI_CFG_REG_1 = 0x94, + + PSM_CONFIG_REG0 = 0x98, + PSM_CONFIG_REG1 = 0x9C, + PSM_CONFIG_REG2 = 0x160, + PSM_CONFIG_REG3 = 0x164, + PSM_CONFIG_REG4 = 0x168, + + PCI_LDO_CTRL = 0xbc, +}; + +/* Yukon-2 */ +enum pci_dev_reg_1 { + PCI_Y2_PIG_ENA = 1<<31, /* Enable Plug-in-Go (YUKON-2) */ + PCI_Y2_DLL_DIS = 1<<30, /* Disable PCI DLL (YUKON-2) */ + PCI_SW_PWR_ON_RST= 1<<30, /* SW Power on Reset (Yukon-EX) */ + PCI_Y2_PHY2_COMA = 1<<29, /* Set PHY 2 to Coma Mode (YUKON-2) */ + PCI_Y2_PHY1_COMA = 1<<28, /* Set PHY 1 to Coma Mode (YUKON-2) */ + PCI_Y2_PHY2_POWD = 1<<27, /* Set PHY 2 to Power Down (YUKON-2) */ + PCI_Y2_PHY1_POWD = 1<<26, /* Set PHY 1 to Power Down (YUKON-2) */ + PCI_Y2_PME_LEGACY= 1<<15, /* PCI Express legacy power management mode */ + + PCI_PHY_LNK_TIM_MSK= 3L<<8,/* Bit 9.. 8: GPHY Link Trigger Timer */ + PCI_ENA_L1_EVENT = 1<<7, /* Enable PEX L1 Event */ + PCI_ENA_GPHY_LNK = 1<<6, /* Enable PEX L1 on GPHY Link down */ + PCI_FORCE_PEX_L1 = 1<<5, /* Force to PEX L1 */ +}; + +enum pci_dev_reg_2 { + PCI_VPD_WR_THR = 0xffL<<24, /* Bit 31..24: VPD Write Threshold */ + PCI_DEV_SEL = 0x7fL<<17, /* Bit 23..17: EEPROM Device Select */ + PCI_VPD_ROM_SZ = 7L<<14, /* Bit 16..14: VPD ROM Size */ + + PCI_PATCH_DIR = 0xfL<<8, /* Bit 11.. 8: Ext Patches dir 3..0 */ + PCI_EXT_PATCHS = 0xfL<<4, /* Bit 7.. 4: Extended Patches 3..0 */ + PCI_EN_DUMMY_RD = 1<<3, /* Enable Dummy Read */ + PCI_REV_DESC = 1<<2, /* Reverse Desc. Bytes */ + + PCI_USEDATA64 = 1<<0, /* Use 64Bit Data bus ext */ +}; + +/* PCI_OUR_REG_3 32 bit Our Register 3 (Yukon-ECU only) */ +enum pci_dev_reg_3 { + P_CLK_ASF_REGS_DIS = 1<<18,/* Disable Clock ASF (Yukon-Ext.) */ + P_CLK_COR_REGS_D0_DIS = 1<<17,/* Disable Clock Core Regs D0 */ + P_CLK_MACSEC_DIS = 1<<17,/* Disable Clock MACSec (Yukon-Ext.) */ + P_CLK_PCI_REGS_D0_DIS = 1<<16,/* Disable Clock PCI Regs D0 */ + P_CLK_COR_YTB_ARB_DIS = 1<<15,/* Disable Clock YTB Arbiter */ + P_CLK_MAC_LNK1_D3_DIS = 1<<14,/* Disable Clock MAC Link1 D3 */ + P_CLK_COR_LNK1_D0_DIS = 1<<13,/* Disable Clock Core Link1 D0 */ + P_CLK_MAC_LNK1_D0_DIS = 1<<12,/* Disable Clock MAC Link1 D0 */ + P_CLK_COR_LNK1_D3_DIS = 1<<11,/* Disable Clock Core Link1 D3 */ + P_CLK_PCI_MST_ARB_DIS = 1<<10,/* Disable Clock PCI Master Arb. */ + P_CLK_COR_REGS_D3_DIS = 1<<9, /* Disable Clock Core Regs D3 */ + P_CLK_PCI_REGS_D3_DIS = 1<<8, /* Disable Clock PCI Regs D3 */ + P_CLK_REF_LNK1_GM_DIS = 1<<7, /* Disable Clock Ref. Link1 GMAC */ + P_CLK_COR_LNK1_GM_DIS = 1<<6, /* Disable Clock Core Link1 GMAC */ + P_CLK_PCI_COMMON_DIS = 1<<5, /* Disable Clock PCI Common */ + P_CLK_COR_COMMON_DIS = 1<<4, /* Disable Clock Core Common */ + P_CLK_PCI_LNK1_BMU_DIS = 1<<3, /* Disable Clock PCI Link1 BMU */ + P_CLK_COR_LNK1_BMU_DIS = 1<<2, /* Disable Clock Core Link1 BMU */ + P_CLK_PCI_LNK1_BIU_DIS = 1<<1, /* Disable Clock PCI Link1 BIU */ + P_CLK_COR_LNK1_BIU_DIS = 1<<0, /* Disable Clock Core Link1 BIU */ + PCIE_OUR3_WOL_D3_COLD_SET = P_CLK_ASF_REGS_DIS | + P_CLK_COR_REGS_D0_DIS | + P_CLK_COR_LNK1_D0_DIS | + P_CLK_MAC_LNK1_D0_DIS | + P_CLK_PCI_MST_ARB_DIS | + P_CLK_COR_COMMON_DIS | + P_CLK_COR_LNK1_BMU_DIS, +}; + +/* PCI_OUR_REG_4 32 bit Our Register 4 (Yukon-ECU only) */ +enum pci_dev_reg_4 { + /* (Link Training & Status State Machine) */ + P_PEX_LTSSM_STAT_MSK = 0x7fL<<25, /* Bit 31..25: PEX LTSSM Mask */ +#define P_PEX_LTSSM_STAT(x) ((x << 25) & P_PEX_LTSSM_STAT_MSK) + P_PEX_LTSSM_L1_STAT = 0x34, + P_PEX_LTSSM_DET_STAT = 0x01, + P_TIMER_VALUE_MSK = 0xffL<<16, /* Bit 23..16: Timer Value Mask */ + /* (Active State Power Management) */ + P_FORCE_ASPM_REQUEST = 1<<15, /* Force ASPM Request (A1 only) */ + P_ASPM_GPHY_LINK_DOWN = 1<<14, /* GPHY Link Down (A1 only) */ + P_ASPM_INT_FIFO_EMPTY = 1<<13, /* Internal FIFO Empty (A1 only) */ + P_ASPM_CLKRUN_REQUEST = 1<<12, /* CLKRUN Request (A1 only) */ + + P_ASPM_FORCE_CLKREQ_ENA = 1<<4, /* Force CLKREQ Enable (A1b only) */ + P_ASPM_CLKREQ_PAD_CTL = 1<<3, /* CLKREQ PAD Control (A1 only) */ + P_ASPM_A1_MODE_SELECT = 1<<2, /* A1 Mode Select (A1 only) */ + P_CLK_GATE_PEX_UNIT_ENA = 1<<1, /* Enable Gate PEX Unit Clock */ + P_CLK_GATE_ROOT_COR_ENA = 1<<0, /* Enable Gate Root Core Clock */ + P_ASPM_CONTROL_MSK = P_FORCE_ASPM_REQUEST | P_ASPM_GPHY_LINK_DOWN + | P_ASPM_CLKRUN_REQUEST | P_ASPM_INT_FIFO_EMPTY, +}; + +/* PCI_OUR_REG_5 32 bit Our Register 5 (Yukon-ECU only) */ +enum pci_dev_reg_5 { + /* Bit 31..27: for A3 & later */ + P_CTL_DIV_CORE_CLK_ENA = 1<<31, /* Divide Core Clock Enable */ + P_CTL_SRESET_VMAIN_AV = 1<<30, /* Soft Reset for Vmain_av De-Glitch */ + P_CTL_BYPASS_VMAIN_AV = 1<<29, /* Bypass En. for Vmain_av De-Glitch */ + P_CTL_TIM_VMAIN_AV_MSK = 3<<27, /* Bit 28..27: Timer Vmain_av Mask */ + /* Bit 26..16: Release Clock on Event */ + P_REL_PCIE_RST_DE_ASS = 1<<26, /* PCIe Reset De-Asserted */ + P_REL_GPHY_REC_PACKET = 1<<25, /* GPHY Received Packet */ + P_REL_INT_FIFO_N_EMPTY = 1<<24, /* Internal FIFO Not Empty */ + P_REL_MAIN_PWR_AVAIL = 1<<23, /* Main Power Available */ + P_REL_CLKRUN_REQ_REL = 1<<22, /* CLKRUN Request Release */ + P_REL_PCIE_RESET_ASS = 1<<21, /* PCIe Reset Asserted */ + P_REL_PME_ASSERTED = 1<<20, /* PME Asserted */ + P_REL_PCIE_EXIT_L1_ST = 1<<19, /* PCIe Exit L1 State */ + P_REL_LOADER_NOT_FIN = 1<<18, /* EPROM Loader Not Finished */ + P_REL_PCIE_RX_EX_IDLE = 1<<17, /* PCIe Rx Exit Electrical Idle State */ + P_REL_GPHY_LINK_UP = 1<<16, /* GPHY Link Up */ + + /* Bit 10.. 0: Mask for Gate Clock */ + P_GAT_PCIE_RST_ASSERTED = 1<<10,/* PCIe Reset Asserted */ + P_GAT_GPHY_N_REC_PACKET = 1<<9, /* GPHY Not Received Packet */ + P_GAT_INT_FIFO_EMPTY = 1<<8, /* Internal FIFO Empty */ + P_GAT_MAIN_PWR_N_AVAIL = 1<<7, /* Main Power Not Available */ + P_GAT_CLKRUN_REQ_REL = 1<<6, /* CLKRUN Not Requested */ + P_GAT_PCIE_RESET_ASS = 1<<5, /* PCIe Reset Asserted */ + P_GAT_PME_DE_ASSERTED = 1<<4, /* PME De-Asserted */ + P_GAT_PCIE_ENTER_L1_ST = 1<<3, /* PCIe Enter L1 State */ + P_GAT_LOADER_FINISHED = 1<<2, /* EPROM Loader Finished */ + P_GAT_PCIE_RX_EL_IDLE = 1<<1, /* PCIe Rx Electrical Idle State */ + P_GAT_GPHY_LINK_DOWN = 1<<0, /* GPHY Link Down */ + + PCIE_OUR5_EVENT_CLK_D3_SET = P_REL_GPHY_REC_PACKET | + P_REL_INT_FIFO_N_EMPTY | + P_REL_PCIE_EXIT_L1_ST | + P_REL_PCIE_RX_EX_IDLE | + P_GAT_GPHY_N_REC_PACKET | + P_GAT_INT_FIFO_EMPTY | + P_GAT_PCIE_ENTER_L1_ST | + P_GAT_PCIE_RX_EL_IDLE, +}; + +/* PCI_CFG_REG_1 32 bit Config Register 1 (Yukon-Ext only) */ +enum pci_cfg_reg1 { + P_CF1_DIS_REL_EVT_RST = 1<<24, /* Dis. Rel. Event during PCIE reset */ + /* Bit 23..21: Release Clock on Event */ + P_CF1_REL_LDR_NOT_FIN = 1<<23, /* EEPROM Loader Not Finished */ + P_CF1_REL_VMAIN_AVLBL = 1<<22, /* Vmain available */ + P_CF1_REL_PCIE_RESET = 1<<21, /* PCI-E reset */ + /* Bit 20..18: Gate Clock on Event */ + P_CF1_GAT_LDR_NOT_FIN = 1<<20, /* EEPROM Loader Finished */ + P_CF1_GAT_PCIE_RX_IDLE = 1<<19, /* PCI-E Rx Electrical idle */ + P_CF1_GAT_PCIE_RESET = 1<<18, /* PCI-E Reset */ + P_CF1_PRST_PHY_CLKREQ = 1<<17, /* Enable PCI-E rst & PM2PHY gen. CLKREQ */ + P_CF1_PCIE_RST_CLKREQ = 1<<16, /* Enable PCI-E rst generate CLKREQ */ + + P_CF1_ENA_CFG_LDR_DONE = 1<<8, /* Enable core level Config loader done */ + + P_CF1_ENA_TXBMU_RD_IDLE = 1<<1, /* Enable TX BMU Read IDLE for ASPM */ + P_CF1_ENA_TXBMU_WR_IDLE = 1<<0, /* Enable TX BMU Write IDLE for ASPM */ + + PCIE_CFG1_EVENT_CLK_D3_SET = P_CF1_DIS_REL_EVT_RST | + P_CF1_REL_LDR_NOT_FIN | + P_CF1_REL_VMAIN_AVLBL | + P_CF1_REL_PCIE_RESET | + P_CF1_GAT_LDR_NOT_FIN | + P_CF1_GAT_PCIE_RESET | + P_CF1_PRST_PHY_CLKREQ | + P_CF1_ENA_CFG_LDR_DONE | + P_CF1_ENA_TXBMU_RD_IDLE | + P_CF1_ENA_TXBMU_WR_IDLE, +}; + +/* Yukon-Optima */ +enum { + PSM_CONFIG_REG1_AC_PRESENT_STATUS = 1<<31, /* AC Present Status */ + + PSM_CONFIG_REG1_PTP_CLK_SEL = 1<<29, /* PTP Clock Select */ + PSM_CONFIG_REG1_PTP_MODE = 1<<28, /* PTP Mode */ + + PSM_CONFIG_REG1_MUX_PHY_LINK = 1<<27, /* PHY Energy Detect Event */ + + PSM_CONFIG_REG1_EN_PIN63_AC_PRESENT = 1<<26, /* Enable LED_DUPLEX for ac_present */ + PSM_CONFIG_REG1_EN_PCIE_TIMER = 1<<25, /* Enable PCIe Timer */ + PSM_CONFIG_REG1_EN_SPU_TIMER = 1<<24, /* Enable SPU Timer */ + PSM_CONFIG_REG1_POLARITY_AC_PRESENT = 1<<23, /* AC Present Polarity */ + + PSM_CONFIG_REG1_EN_AC_PRESENT = 1<<21, /* Enable AC Present */ + + PSM_CONFIG_REG1_EN_GPHY_INT_PSM = 1<<20, /* Enable GPHY INT for PSM */ + PSM_CONFIG_REG1_DIS_PSM_TIMER = 1<<19, /* Disable PSM Timer */ +}; + +/* Yukon-Supreme */ +enum { + PSM_CONFIG_REG1_GPHY_ENERGY_STS = 1<<31, /* GPHY Energy Detect Status */ + + PSM_CONFIG_REG1_UART_MODE_MSK = 3<<29, /* UART_Mode */ + PSM_CONFIG_REG1_CLK_RUN_ASF = 1<<28, /* Enable Clock Free Running for ASF Subsystem */ + PSM_CONFIG_REG1_UART_CLK_DISABLE= 1<<27, /* Disable UART clock */ + PSM_CONFIG_REG1_VAUX_ONE = 1<<26, /* Tie internal Vaux to 1'b1 */ + PSM_CONFIG_REG1_UART_FC_RI_VAL = 1<<25, /* Default value for UART_RI_n */ + PSM_CONFIG_REG1_UART_FC_DCD_VAL = 1<<24, /* Default value for UART_DCD_n */ + PSM_CONFIG_REG1_UART_FC_DSR_VAL = 1<<23, /* Default value for UART_DSR_n */ + PSM_CONFIG_REG1_UART_FC_CTS_VAL = 1<<22, /* Default value for UART_CTS_n */ + PSM_CONFIG_REG1_LATCH_VAUX = 1<<21, /* Enable Latch current Vaux_avlbl */ + PSM_CONFIG_REG1_FORCE_TESTMODE_INPUT= 1<<20, /* Force Testmode pin as input PAD */ + PSM_CONFIG_REG1_UART_RST = 1<<19, /* UART_RST */ + PSM_CONFIG_REG1_PSM_PCIE_L1_POL = 1<<18, /* PCIE L1 Event Polarity for PSM */ + PSM_CONFIG_REG1_TIMER_STAT = 1<<17, /* PSM Timer Status */ + PSM_CONFIG_REG1_GPHY_INT = 1<<16, /* GPHY INT Status */ + PSM_CONFIG_REG1_FORCE_TESTMODE_ZERO= 1<<15, /* Force internal Testmode as 1'b0 */ + PSM_CONFIG_REG1_EN_INT_ASPM_CLKREQ = 1<<14, /* ENABLE INT for CLKRUN on ASPM and CLKREQ */ + PSM_CONFIG_REG1_EN_SND_TASK_ASPM_CLKREQ = 1<<13, /* ENABLE Snd_task for CLKRUN on ASPM and CLKREQ */ + PSM_CONFIG_REG1_DIS_CLK_GATE_SND_TASK = 1<<12, /* Disable CLK_GATE control snd_task */ + PSM_CONFIG_REG1_DIS_FF_CHIAN_SND_INTA = 1<<11, /* Disable flip-flop chain for sndmsg_inta */ + + PSM_CONFIG_REG1_DIS_LOADER = 1<<9, /* Disable Loader SM after PSM Goes back to IDLE */ + PSM_CONFIG_REG1_DO_PWDN = 1<<8, /* Do Power Down, Start PSM Scheme */ + PSM_CONFIG_REG1_DIS_PIG = 1<<7, /* Disable Plug-in-Go SM after PSM Goes back to IDLE */ + PSM_CONFIG_REG1_DIS_PERST = 1<<6, /* Disable Internal PCIe Reset after PSM Goes back to IDLE */ + PSM_CONFIG_REG1_EN_REG18_PD = 1<<5, /* Enable REG18 Power Down for PSM */ + PSM_CONFIG_REG1_EN_PSM_LOAD = 1<<4, /* Disable EEPROM Loader after PSM Goes back to IDLE */ + PSM_CONFIG_REG1_EN_PSM_HOT_RST = 1<<3, /* Enable PCIe Hot Reset for PSM */ + PSM_CONFIG_REG1_EN_PSM_PERST = 1<<2, /* Enable PCIe Reset Event for PSM */ + PSM_CONFIG_REG1_EN_PSM_PCIE_L1 = 1<<1, /* Enable PCIe L1 Event for PSM */ + PSM_CONFIG_REG1_EN_PSM = 1<<0, /* Enable PSM Scheme */ +}; + +/* PSM_CONFIG_REG4 0x0168 PSM Config Register 4 */ +enum { + /* PHY Link Detect Timer */ + PSM_CONFIG_REG4_TIMER_PHY_LINK_DETECT_MSK = 0xf<<4, + PSM_CONFIG_REG4_TIMER_PHY_LINK_DETECT_BASE = 4, + + PSM_CONFIG_REG4_DEBUG_TIMER = 1<<1, /* Debug Timer */ + PSM_CONFIG_REG4_RST_PHY_LINK_DETECT = 1<<0, /* Reset GPHY Link Detect */ +}; + + +enum csr_regs { + B0_RAP = 0x0000, + B0_CTST = 0x0004, + + B0_POWER_CTRL = 0x0007, + B0_ISRC = 0x0008, + B0_IMSK = 0x000c, + B0_HWE_ISRC = 0x0010, + B0_HWE_IMSK = 0x0014, + + /* Special ISR registers (Yukon-2 only) */ + B0_Y2_SP_ISRC2 = 0x001c, + B0_Y2_SP_ISRC3 = 0x0020, + B0_Y2_SP_EISR = 0x0024, + B0_Y2_SP_LISR = 0x0028, + B0_Y2_SP_ICR = 0x002c, + + B2_MAC_1 = 0x0100, + B2_MAC_2 = 0x0108, + B2_MAC_3 = 0x0110, + B2_CONN_TYP = 0x0118, + B2_PMD_TYP = 0x0119, + B2_MAC_CFG = 0x011a, + B2_CHIP_ID = 0x011b, + B2_E_0 = 0x011c, + + B2_Y2_CLK_GATE = 0x011d, + B2_Y2_HW_RES = 0x011e, + B2_E_3 = 0x011f, + B2_Y2_CLK_CTRL = 0x0120, + + B2_TI_INI = 0x0130, + B2_TI_VAL = 0x0134, + B2_TI_CTRL = 0x0138, + B2_TI_TEST = 0x0139, + + B2_TST_CTRL1 = 0x0158, + B2_TST_CTRL2 = 0x0159, + B2_GP_IO = 0x015c, + + B2_I2C_CTRL = 0x0160, + B2_I2C_DATA = 0x0164, + B2_I2C_IRQ = 0x0168, + B2_I2C_SW = 0x016c, + + Y2_PEX_PHY_DATA = 0x0170, + Y2_PEX_PHY_ADDR = 0x0172, + + B3_RAM_ADDR = 0x0180, + B3_RAM_DATA_LO = 0x0184, + B3_RAM_DATA_HI = 0x0188, + +/* RAM Interface Registers */ +/* Yukon-2: use RAM_BUFFER() to access the RAM buffer */ +/* + * The HW-Spec. calls this registers Timeout Value 0..11. But this names are + * not usable in SW. Please notice these are NOT real timeouts, these are + * the number of qWords transferred continuously. + */ +#define RAM_BUFFER(port, reg) (reg | (port <<6)) + + B3_RI_WTO_R1 = 0x0190, + B3_RI_WTO_XA1 = 0x0191, + B3_RI_WTO_XS1 = 0x0192, + B3_RI_RTO_R1 = 0x0193, + B3_RI_RTO_XA1 = 0x0194, + B3_RI_RTO_XS1 = 0x0195, + B3_RI_WTO_R2 = 0x0196, + B3_RI_WTO_XA2 = 0x0197, + B3_RI_WTO_XS2 = 0x0198, + B3_RI_RTO_R2 = 0x0199, + B3_RI_RTO_XA2 = 0x019a, + B3_RI_RTO_XS2 = 0x019b, + B3_RI_TO_VAL = 0x019c, + B3_RI_CTRL = 0x01a0, + B3_RI_TEST = 0x01a2, + B3_MA_TOINI_RX1 = 0x01b0, + B3_MA_TOINI_RX2 = 0x01b1, + B3_MA_TOINI_TX1 = 0x01b2, + B3_MA_TOINI_TX2 = 0x01b3, + B3_MA_TOVAL_RX1 = 0x01b4, + B3_MA_TOVAL_RX2 = 0x01b5, + B3_MA_TOVAL_TX1 = 0x01b6, + B3_MA_TOVAL_TX2 = 0x01b7, + B3_MA_TO_CTRL = 0x01b8, + B3_MA_TO_TEST = 0x01ba, + B3_MA_RCINI_RX1 = 0x01c0, + B3_MA_RCINI_RX2 = 0x01c1, + B3_MA_RCINI_TX1 = 0x01c2, + B3_MA_RCINI_TX2 = 0x01c3, + B3_MA_RCVAL_RX1 = 0x01c4, + B3_MA_RCVAL_RX2 = 0x01c5, + B3_MA_RCVAL_TX1 = 0x01c6, + B3_MA_RCVAL_TX2 = 0x01c7, + B3_MA_RC_CTRL = 0x01c8, + B3_MA_RC_TEST = 0x01ca, + B3_PA_TOINI_RX1 = 0x01d0, + B3_PA_TOINI_RX2 = 0x01d4, + B3_PA_TOINI_TX1 = 0x01d8, + B3_PA_TOINI_TX2 = 0x01dc, + B3_PA_TOVAL_RX1 = 0x01e0, + B3_PA_TOVAL_RX2 = 0x01e4, + B3_PA_TOVAL_TX1 = 0x01e8, + B3_PA_TOVAL_TX2 = 0x01ec, + B3_PA_CTRL = 0x01f0, + B3_PA_TEST = 0x01f2, + + Y2_CFG_SPC = 0x1c00, /* PCI config space region */ + Y2_CFG_AER = 0x1d00, /* PCI Advanced Error Report region */ +}; + +/* B0_CTST 24 bit Control/Status register */ +enum { + Y2_VMAIN_AVAIL = 1<<17,/* VMAIN available (YUKON-2 only) */ + Y2_VAUX_AVAIL = 1<<16,/* VAUX available (YUKON-2 only) */ + Y2_HW_WOL_ON = 1<<15,/* HW WOL On (Yukon-EC Ultra A1 only) */ + Y2_HW_WOL_OFF = 1<<14,/* HW WOL On (Yukon-EC Ultra A1 only) */ + Y2_ASF_ENABLE = 1<<13,/* ASF Unit Enable (YUKON-2 only) */ + Y2_ASF_DISABLE = 1<<12,/* ASF Unit Disable (YUKON-2 only) */ + Y2_CLK_RUN_ENA = 1<<11,/* CLK_RUN Enable (YUKON-2 only) */ + Y2_CLK_RUN_DIS = 1<<10,/* CLK_RUN Disable (YUKON-2 only) */ + Y2_LED_STAT_ON = 1<<9, /* Status LED On (YUKON-2 only) */ + Y2_LED_STAT_OFF = 1<<8, /* Status LED Off (YUKON-2 only) */ + + CS_ST_SW_IRQ = 1<<7, /* Set IRQ SW Request */ + CS_CL_SW_IRQ = 1<<6, /* Clear IRQ SW Request */ + CS_STOP_DONE = 1<<5, /* Stop Master is finished */ + CS_STOP_MAST = 1<<4, /* Command Bit to stop the master */ + CS_MRST_CLR = 1<<3, /* Clear Master reset */ + CS_MRST_SET = 1<<2, /* Set Master reset */ + CS_RST_CLR = 1<<1, /* Clear Software reset */ + CS_RST_SET = 1, /* Set Software reset */ +}; + +/* B0_POWER_CTRL 8 Bit Power Control reg (YUKON only) */ +enum { + PC_VAUX_ENA = 1<<7, /* Switch VAUX Enable */ + PC_VAUX_DIS = 1<<6, /* Switch VAUX Disable */ + PC_VCC_ENA = 1<<5, /* Switch VCC Enable */ + PC_VCC_DIS = 1<<4, /* Switch VCC Disable */ + PC_VAUX_ON = 1<<3, /* Switch VAUX On */ + PC_VAUX_OFF = 1<<2, /* Switch VAUX Off */ + PC_VCC_ON = 1<<1, /* Switch VCC On */ + PC_VCC_OFF = 1<<0, /* Switch VCC Off */ +}; + +/* B2_IRQM_MSK 32 bit IRQ Moderation Mask */ + +/* B0_Y2_SP_ISRC2 32 bit Special Interrupt Source Reg 2 */ +/* B0_Y2_SP_ISRC3 32 bit Special Interrupt Source Reg 3 */ +/* B0_Y2_SP_EISR 32 bit Enter ISR Reg */ +/* B0_Y2_SP_LISR 32 bit Leave ISR Reg */ +enum { + Y2_IS_HW_ERR = 1<<31, /* Interrupt HW Error */ + Y2_IS_STAT_BMU = 1<<30, /* Status BMU Interrupt */ + Y2_IS_ASF = 1<<29, /* ASF subsystem Interrupt */ + Y2_IS_CPU_TO = 1<<28, /* CPU Timeout */ + Y2_IS_POLL_CHK = 1<<27, /* Check IRQ from polling unit */ + Y2_IS_TWSI_RDY = 1<<26, /* IRQ on end of TWSI Tx */ + Y2_IS_IRQ_SW = 1<<25, /* SW forced IRQ */ + Y2_IS_TIMINT = 1<<24, /* IRQ from Timer */ + + Y2_IS_IRQ_PHY2 = 1<<12, /* Interrupt from PHY 2 */ + Y2_IS_IRQ_MAC2 = 1<<11, /* Interrupt from MAC 2 */ + Y2_IS_CHK_RX2 = 1<<10, /* Descriptor error Rx 2 */ + Y2_IS_CHK_TXS2 = 1<<9, /* Descriptor error TXS 2 */ + Y2_IS_CHK_TXA2 = 1<<8, /* Descriptor error TXA 2 */ + + Y2_IS_PSM_ACK = 1<<7, /* PSM Acknowledge (Yukon-Optima only) */ + Y2_IS_PTP_TIST = 1<<6, /* PTP Time Stamp (Yukon-Optima only) */ + Y2_IS_PHY_QLNK = 1<<5, /* PHY Quick Link (Yukon-Optima only) */ + + Y2_IS_IRQ_PHY1 = 1<<4, /* Interrupt from PHY 1 */ + Y2_IS_IRQ_MAC1 = 1<<3, /* Interrupt from MAC 1 */ + Y2_IS_CHK_RX1 = 1<<2, /* Descriptor error Rx 1 */ + Y2_IS_CHK_TXS1 = 1<<1, /* Descriptor error TXS 1 */ + Y2_IS_CHK_TXA1 = 1<<0, /* Descriptor error TXA 1 */ + + Y2_IS_BASE = Y2_IS_HW_ERR | Y2_IS_STAT_BMU, + Y2_IS_PORT_1 = Y2_IS_IRQ_PHY1 | Y2_IS_IRQ_MAC1 + | Y2_IS_CHK_TXA1 | Y2_IS_CHK_RX1, + Y2_IS_PORT_2 = Y2_IS_IRQ_PHY2 | Y2_IS_IRQ_MAC2 + | Y2_IS_CHK_TXA2 | Y2_IS_CHK_RX2, + Y2_IS_ERROR = Y2_IS_HW_ERR | + Y2_IS_IRQ_MAC1 | Y2_IS_CHK_TXA1 | Y2_IS_CHK_RX1 | + Y2_IS_IRQ_MAC2 | Y2_IS_CHK_TXA2 | Y2_IS_CHK_RX2, +}; + +/* B2_IRQM_HWE_MSK 32 bit IRQ Moderation HW Error Mask */ +enum { + IS_ERR_MSK = 0x00003fff,/* All Error bits */ + + IS_IRQ_TIST_OV = 1<<13, /* Time Stamp Timer Overflow (YUKON only) */ + IS_IRQ_SENSOR = 1<<12, /* IRQ from Sensor (YUKON only) */ + IS_IRQ_MST_ERR = 1<<11, /* IRQ master error detected */ + IS_IRQ_STAT = 1<<10, /* IRQ status exception */ + IS_NO_STAT_M1 = 1<<9, /* No Rx Status from MAC 1 */ + IS_NO_STAT_M2 = 1<<8, /* No Rx Status from MAC 2 */ + IS_NO_TIST_M1 = 1<<7, /* No Time Stamp from MAC 1 */ + IS_NO_TIST_M2 = 1<<6, /* No Time Stamp from MAC 2 */ + IS_RAM_RD_PAR = 1<<5, /* RAM Read Parity Error */ + IS_RAM_WR_PAR = 1<<4, /* RAM Write Parity Error */ + IS_M1_PAR_ERR = 1<<3, /* MAC 1 Parity Error */ + IS_M2_PAR_ERR = 1<<2, /* MAC 2 Parity Error */ + IS_R1_PAR_ERR = 1<<1, /* Queue R1 Parity Error */ + IS_R2_PAR_ERR = 1<<0, /* Queue R2 Parity Error */ +}; + +/* Hardware error interrupt mask for Yukon 2 */ +enum { + Y2_IS_TIST_OV = 1<<29,/* Time Stamp Timer overflow interrupt */ + Y2_IS_SENSOR = 1<<28, /* Sensor interrupt */ + Y2_IS_MST_ERR = 1<<27, /* Master error interrupt */ + Y2_IS_IRQ_STAT = 1<<26, /* Status exception interrupt */ + Y2_IS_PCI_EXP = 1<<25, /* PCI-Express interrupt */ + Y2_IS_PCI_NEXP = 1<<24, /* PCI-Express error similar to PCI error */ + /* Link 2 */ + Y2_IS_PAR_RD2 = 1<<13, /* Read RAM parity error interrupt */ + Y2_IS_PAR_WR2 = 1<<12, /* Write RAM parity error interrupt */ + Y2_IS_PAR_MAC2 = 1<<11, /* MAC hardware fault interrupt */ + Y2_IS_PAR_RX2 = 1<<10, /* Parity Error Rx Queue 2 */ + Y2_IS_TCP_TXS2 = 1<<9, /* TCP length mismatch sync Tx queue IRQ */ + Y2_IS_TCP_TXA2 = 1<<8, /* TCP length mismatch async Tx queue IRQ */ + /* Link 1 */ + Y2_IS_PAR_RD1 = 1<<5, /* Read RAM parity error interrupt */ + Y2_IS_PAR_WR1 = 1<<4, /* Write RAM parity error interrupt */ + Y2_IS_PAR_MAC1 = 1<<3, /* MAC hardware fault interrupt */ + Y2_IS_PAR_RX1 = 1<<2, /* Parity Error Rx Queue 1 */ + Y2_IS_TCP_TXS1 = 1<<1, /* TCP length mismatch sync Tx queue IRQ */ + Y2_IS_TCP_TXA1 = 1<<0, /* TCP length mismatch async Tx queue IRQ */ + + Y2_HWE_L1_MASK = Y2_IS_PAR_RD1 | Y2_IS_PAR_WR1 | Y2_IS_PAR_MAC1 | + Y2_IS_PAR_RX1 | Y2_IS_TCP_TXS1| Y2_IS_TCP_TXA1, + Y2_HWE_L2_MASK = Y2_IS_PAR_RD2 | Y2_IS_PAR_WR2 | Y2_IS_PAR_MAC2 | + Y2_IS_PAR_RX2 | Y2_IS_TCP_TXS2| Y2_IS_TCP_TXA2, + + Y2_HWE_ALL_MASK = Y2_IS_TIST_OV | Y2_IS_MST_ERR | Y2_IS_IRQ_STAT | + Y2_HWE_L1_MASK | Y2_HWE_L2_MASK, +}; + +/* B28_DPT_CTRL 8 bit Descriptor Poll Timer Ctrl Reg */ +enum { + DPT_START = 1<<1, + DPT_STOP = 1<<0, +}; + +/* B2_TST_CTRL1 8 bit Test Control Register 1 */ +enum { + TST_FRC_DPERR_MR = 1<<7, /* force DATAPERR on MST RD */ + TST_FRC_DPERR_MW = 1<<6, /* force DATAPERR on MST WR */ + TST_FRC_DPERR_TR = 1<<5, /* force DATAPERR on TRG RD */ + TST_FRC_DPERR_TW = 1<<4, /* force DATAPERR on TRG WR */ + TST_FRC_APERR_M = 1<<3, /* force ADDRPERR on MST */ + TST_FRC_APERR_T = 1<<2, /* force ADDRPERR on TRG */ + TST_CFG_WRITE_ON = 1<<1, /* Enable Config Reg WR */ + TST_CFG_WRITE_OFF= 1<<0, /* Disable Config Reg WR */ +}; + +/* B2_GPIO */ +enum { + GLB_GPIO_CLK_DEB_ENA = 1<<31, /* Clock Debug Enable */ + GLB_GPIO_CLK_DBG_MSK = 0xf<<26, /* Clock Debug */ + + GLB_GPIO_INT_RST_D3_DIS = 1<<15, /* Disable Internal Reset After D3 to D0 */ + GLB_GPIO_LED_PAD_SPEED_UP = 1<<14, /* LED PAD Speed Up */ + GLB_GPIO_STAT_RACE_DIS = 1<<13, /* Status Race Disable */ + GLB_GPIO_TEST_SEL_MSK = 3<<11, /* Testmode Select */ + GLB_GPIO_TEST_SEL_BASE = 1<<11, + GLB_GPIO_RAND_ENA = 1<<10, /* Random Enable */ + GLB_GPIO_RAND_BIT_1 = 1<<9, /* Random Bit 1 */ +}; + +/* B2_MAC_CFG 8 bit MAC Configuration / Chip Revision */ +enum { + CFG_CHIP_R_MSK = 0xf<<4, /* Bit 7.. 4: Chip Revision */ + /* Bit 3.. 2: reserved */ + CFG_DIS_M2_CLK = 1<<1, /* Disable Clock for 2nd MAC */ + CFG_SNG_MAC = 1<<0, /* MAC Config: 0=2 MACs / 1=1 MAC*/ +}; + +/* B2_CHIP_ID 8 bit Chip Identification Number */ +enum { + CHIP_ID_YUKON_XL = 0xb3, /* YUKON-2 XL */ + CHIP_ID_YUKON_EC_U = 0xb4, /* YUKON-2 EC Ultra */ + CHIP_ID_YUKON_EX = 0xb5, /* YUKON-2 Extreme */ + CHIP_ID_YUKON_EC = 0xb6, /* YUKON-2 EC */ + CHIP_ID_YUKON_FE = 0xb7, /* YUKON-2 FE */ + CHIP_ID_YUKON_FE_P = 0xb8, /* YUKON-2 FE+ */ + CHIP_ID_YUKON_SUPR = 0xb9, /* YUKON-2 Supreme */ + CHIP_ID_YUKON_UL_2 = 0xba, /* YUKON-2 Ultra 2 */ + CHIP_ID_YUKON_OPT = 0xbc, /* YUKON-2 Optima */ + CHIP_ID_YUKON_PRM = 0xbd, /* YUKON-2 Optima Prime */ + CHIP_ID_YUKON_OP_2 = 0xbe, /* YUKON-2 Optima 2 */ +}; + +enum yukon_xl_rev { + CHIP_REV_YU_XL_A0 = 0, + CHIP_REV_YU_XL_A1 = 1, + CHIP_REV_YU_XL_A2 = 2, + CHIP_REV_YU_XL_A3 = 3, +}; + +enum yukon_ec_rev { + CHIP_REV_YU_EC_A1 = 0, /* Chip Rev. for Yukon-EC A1/A0 */ + CHIP_REV_YU_EC_A2 = 1, /* Chip Rev. for Yukon-EC A2 */ + CHIP_REV_YU_EC_A3 = 2, /* Chip Rev. for Yukon-EC A3 */ +}; +enum yukon_ec_u_rev { + CHIP_REV_YU_EC_U_A0 = 1, + CHIP_REV_YU_EC_U_A1 = 2, + CHIP_REV_YU_EC_U_B0 = 3, + CHIP_REV_YU_EC_U_B1 = 5, +}; +enum yukon_fe_rev { + CHIP_REV_YU_FE_A1 = 1, + CHIP_REV_YU_FE_A2 = 2, +}; +enum yukon_fe_p_rev { + CHIP_REV_YU_FE2_A0 = 0, +}; +enum yukon_ex_rev { + CHIP_REV_YU_EX_A0 = 1, + CHIP_REV_YU_EX_B0 = 2, +}; +enum yukon_supr_rev { + CHIP_REV_YU_SU_A0 = 0, + CHIP_REV_YU_SU_B0 = 1, + CHIP_REV_YU_SU_B1 = 3, +}; + +enum yukon_prm_rev { + CHIP_REV_YU_PRM_Z1 = 1, + CHIP_REV_YU_PRM_A0 = 2, +}; + +/* B2_Y2_CLK_GATE 8 bit Clock Gating (Yukon-2 only) */ +enum { + Y2_STATUS_LNK2_INAC = 1<<7, /* Status Link 2 inactive (0 = active) */ + Y2_CLK_GAT_LNK2_DIS = 1<<6, /* Disable clock gating Link 2 */ + Y2_COR_CLK_LNK2_DIS = 1<<5, /* Disable Core clock Link 2 */ + Y2_PCI_CLK_LNK2_DIS = 1<<4, /* Disable PCI clock Link 2 */ + Y2_STATUS_LNK1_INAC = 1<<3, /* Status Link 1 inactive (0 = active) */ + Y2_CLK_GAT_LNK1_DIS = 1<<2, /* Disable clock gating Link 1 */ + Y2_COR_CLK_LNK1_DIS = 1<<1, /* Disable Core clock Link 1 */ + Y2_PCI_CLK_LNK1_DIS = 1<<0, /* Disable PCI clock Link 1 */ +}; + +/* B2_Y2_HW_RES 8 bit HW Resources (Yukon-2 only) */ +enum { + CFG_LED_MODE_MSK = 7<<2, /* Bit 4.. 2: LED Mode Mask */ + CFG_LINK_2_AVAIL = 1<<1, /* Link 2 available */ + CFG_LINK_1_AVAIL = 1<<0, /* Link 1 available */ +}; +#define CFG_LED_MODE(x) (((x) & CFG_LED_MODE_MSK) >> 2) +#define CFG_DUAL_MAC_MSK (CFG_LINK_2_AVAIL | CFG_LINK_1_AVAIL) + + +/* B2_Y2_CLK_CTRL 32 bit Clock Frequency Control Register (Yukon-2/EC) */ +enum { + Y2_CLK_DIV_VAL_MSK = 0xff<<16,/* Bit 23..16: Clock Divisor Value */ +#define Y2_CLK_DIV_VAL(x) (((x)<<16) & Y2_CLK_DIV_VAL_MSK) + Y2_CLK_DIV_VAL2_MSK = 7<<21, /* Bit 23..21: Clock Divisor Value */ + Y2_CLK_SELECT2_MSK = 0x1f<<16,/* Bit 20..16: Clock Select */ +#define Y2_CLK_DIV_VAL_2(x) (((x)<<21) & Y2_CLK_DIV_VAL2_MSK) +#define Y2_CLK_SEL_VAL_2(x) (((x)<<16) & Y2_CLK_SELECT2_MSK) + Y2_CLK_DIV_ENA = 1<<1, /* Enable Core Clock Division */ + Y2_CLK_DIV_DIS = 1<<0, /* Disable Core Clock Division */ +}; + +/* B2_TI_CTRL 8 bit Timer control */ +/* B2_IRQM_CTRL 8 bit IRQ Moderation Timer Control */ +enum { + TIM_START = 1<<2, /* Start Timer */ + TIM_STOP = 1<<1, /* Stop Timer */ + TIM_CLR_IRQ = 1<<0, /* Clear Timer IRQ (!IRQM) */ +}; + +/* B2_TI_TEST 8 Bit Timer Test */ +/* B2_IRQM_TEST 8 bit IRQ Moderation Timer Test */ +/* B28_DPT_TST 8 bit Descriptor Poll Timer Test Reg */ +enum { + TIM_T_ON = 1<<2, /* Test mode on */ + TIM_T_OFF = 1<<1, /* Test mode off */ + TIM_T_STEP = 1<<0, /* Test step */ +}; + +/* Y2_PEX_PHY_ADDR/DATA PEX PHY address and data reg (Yukon-2 only) */ +enum { + PEX_RD_ACCESS = 1<<31, /* Access Mode Read = 1, Write = 0 */ + PEX_DB_ACCESS = 1<<30, /* Access to debug register */ +}; + +/* B3_RAM_ADDR 32 bit RAM Address, to read or write */ + /* Bit 31..19: reserved */ +#define RAM_ADR_RAN 0x0007ffffL /* Bit 18.. 0: RAM Address Range */ +/* RAM Interface Registers */ + +/* B3_RI_CTRL 16 bit RAM Interface Control Register */ +enum { + RI_CLR_RD_PERR = 1<<9, /* Clear IRQ RAM Read Parity Err */ + RI_CLR_WR_PERR = 1<<8, /* Clear IRQ RAM Write Parity Err*/ + + RI_RST_CLR = 1<<1, /* Clear RAM Interface Reset */ + RI_RST_SET = 1<<0, /* Set RAM Interface Reset */ +}; + +#define SK_RI_TO_53 36 /* RAM interface timeout */ + + +/* Port related registers FIFO, and Arbiter */ +#define SK_REG(port,reg) (((port)<<7)+(reg)) + +/* Transmit Arbiter Registers MAC 1 and 2, use SK_REG() to access */ +/* TXA_ITI_INI 32 bit Tx Arb Interval Timer Init Val */ +/* TXA_ITI_VAL 32 bit Tx Arb Interval Timer Value */ +/* TXA_LIM_INI 32 bit Tx Arb Limit Counter Init Val */ +/* TXA_LIM_VAL 32 bit Tx Arb Limit Counter Value */ + +#define TXA_MAX_VAL 0x00ffffffUL /* Bit 23.. 0: Max TXA Timer/Cnt Val */ + +/* TXA_CTRL 8 bit Tx Arbiter Control Register */ +enum { + TXA_ENA_FSYNC = 1<<7, /* Enable force of sync Tx queue */ + TXA_DIS_FSYNC = 1<<6, /* Disable force of sync Tx queue */ + TXA_ENA_ALLOC = 1<<5, /* Enable alloc of free bandwidth */ + TXA_DIS_ALLOC = 1<<4, /* Disable alloc of free bandwidth */ + TXA_START_RC = 1<<3, /* Start sync Rate Control */ + TXA_STOP_RC = 1<<2, /* Stop sync Rate Control */ + TXA_ENA_ARB = 1<<1, /* Enable Tx Arbiter */ + TXA_DIS_ARB = 1<<0, /* Disable Tx Arbiter */ +}; + +/* + * Bank 4 - 5 + */ +/* Transmit Arbiter Registers MAC 1 and 2, use SK_REG() to access */ +enum { + TXA_ITI_INI = 0x0200,/* 32 bit Tx Arb Interval Timer Init Val*/ + TXA_ITI_VAL = 0x0204,/* 32 bit Tx Arb Interval Timer Value */ + TXA_LIM_INI = 0x0208,/* 32 bit Tx Arb Limit Counter Init Val */ + TXA_LIM_VAL = 0x020c,/* 32 bit Tx Arb Limit Counter Value */ + TXA_CTRL = 0x0210,/* 8 bit Tx Arbiter Control Register */ + TXA_TEST = 0x0211,/* 8 bit Tx Arbiter Test Register */ + TXA_STAT = 0x0212,/* 8 bit Tx Arbiter Status Register */ + + RSS_KEY = 0x0220, /* RSS Key setup */ + RSS_CFG = 0x0248, /* RSS Configuration */ +}; + +enum { + HASH_TCP_IPV6_EX_CTRL = 1<<5, + HASH_IPV6_EX_CTRL = 1<<4, + HASH_TCP_IPV6_CTRL = 1<<3, + HASH_IPV6_CTRL = 1<<2, + HASH_TCP_IPV4_CTRL = 1<<1, + HASH_IPV4_CTRL = 1<<0, + + HASH_ALL = 0x3f, +}; + +enum { + B6_EXT_REG = 0x0300,/* External registers (GENESIS only) */ + B7_CFG_SPC = 0x0380,/* copy of the Configuration register */ + B8_RQ1_REGS = 0x0400,/* Receive Queue 1 */ + B8_RQ2_REGS = 0x0480,/* Receive Queue 2 */ + B8_TS1_REGS = 0x0600,/* Transmit sync queue 1 */ + B8_TA1_REGS = 0x0680,/* Transmit async queue 1 */ + B8_TS2_REGS = 0x0700,/* Transmit sync queue 2 */ + B8_TA2_REGS = 0x0780,/* Transmit sync queue 2 */ + B16_RAM_REGS = 0x0800,/* RAM Buffer Registers */ +}; + +/* Queue Register Offsets, use Q_ADDR() to access */ +enum { + B8_Q_REGS = 0x0400, /* base of Queue registers */ + Q_D = 0x00, /* 8*32 bit Current Descriptor */ + Q_VLAN = 0x20, /* 16 bit Current VLAN Tag */ + Q_DONE = 0x24, /* 16 bit Done Index */ + Q_AC_L = 0x28, /* 32 bit Current Address Counter Low dWord */ + Q_AC_H = 0x2c, /* 32 bit Current Address Counter High dWord */ + Q_BC = 0x30, /* 32 bit Current Byte Counter */ + Q_CSR = 0x34, /* 32 bit BMU Control/Status Register */ + Q_TEST = 0x38, /* 32 bit Test/Control Register */ + +/* Yukon-2 */ + Q_WM = 0x40, /* 16 bit FIFO Watermark */ + Q_AL = 0x42, /* 8 bit FIFO Alignment */ + Q_RSP = 0x44, /* 16 bit FIFO Read Shadow Pointer */ + Q_RSL = 0x46, /* 8 bit FIFO Read Shadow Level */ + Q_RP = 0x48, /* 8 bit FIFO Read Pointer */ + Q_RL = 0x4a, /* 8 bit FIFO Read Level */ + Q_WP = 0x4c, /* 8 bit FIFO Write Pointer */ + Q_WSP = 0x4d, /* 8 bit FIFO Write Shadow Pointer */ + Q_WL = 0x4e, /* 8 bit FIFO Write Level */ + Q_WSL = 0x4f, /* 8 bit FIFO Write Shadow Level */ +}; +#define Q_ADDR(reg, offs) (B8_Q_REGS + (reg) + (offs)) + +/* Q_TEST 32 bit Test Register */ +enum { + /* Transmit */ + F_TX_CHK_AUTO_OFF = 1<<31, /* Tx checksum auto calc off (Yukon EX) */ + F_TX_CHK_AUTO_ON = 1<<30, /* Tx checksum auto calc off (Yukon EX) */ + + /* Receive */ + F_M_RX_RAM_DIS = 1<<24, /* MAC Rx RAM Read Port disable */ + + /* Hardware testbits not used */ +}; + +/* Queue Prefetch Unit Offsets, use Y2_QADDR() to address (Yukon-2 only)*/ +enum { + Y2_B8_PREF_REGS = 0x0450, + + PREF_UNIT_CTRL = 0x00, /* 32 bit Control register */ + PREF_UNIT_LAST_IDX = 0x04, /* 16 bit Last Index */ + PREF_UNIT_ADDR_LO = 0x08, /* 32 bit List start addr, low part */ + PREF_UNIT_ADDR_HI = 0x0c, /* 32 bit List start addr, high part*/ + PREF_UNIT_GET_IDX = 0x10, /* 16 bit Get Index */ + PREF_UNIT_PUT_IDX = 0x14, /* 16 bit Put Index */ + PREF_UNIT_FIFO_WP = 0x20, /* 8 bit FIFO write pointer */ + PREF_UNIT_FIFO_RP = 0x24, /* 8 bit FIFO read pointer */ + PREF_UNIT_FIFO_WM = 0x28, /* 8 bit FIFO watermark */ + PREF_UNIT_FIFO_LEV = 0x2c, /* 8 bit FIFO level */ + + PREF_UNIT_MASK_IDX = 0x0fff, +}; +#define Y2_QADDR(q,reg) (Y2_B8_PREF_REGS + (q) + (reg)) + +/* RAM Buffer Register Offsets */ +enum { + + RB_START = 0x00,/* 32 bit RAM Buffer Start Address */ + RB_END = 0x04,/* 32 bit RAM Buffer End Address */ + RB_WP = 0x08,/* 32 bit RAM Buffer Write Pointer */ + RB_RP = 0x0c,/* 32 bit RAM Buffer Read Pointer */ + RB_RX_UTPP = 0x10,/* 32 bit Rx Upper Threshold, Pause Packet */ + RB_RX_LTPP = 0x14,/* 32 bit Rx Lower Threshold, Pause Packet */ + RB_RX_UTHP = 0x18,/* 32 bit Rx Upper Threshold, High Prio */ + RB_RX_LTHP = 0x1c,/* 32 bit Rx Lower Threshold, High Prio */ + /* 0x10 - 0x1f: reserved at Tx RAM Buffer Registers */ + RB_PC = 0x20,/* 32 bit RAM Buffer Packet Counter */ + RB_LEV = 0x24,/* 32 bit RAM Buffer Level Register */ + RB_CTRL = 0x28,/* 32 bit RAM Buffer Control Register */ + RB_TST1 = 0x29,/* 8 bit RAM Buffer Test Register 1 */ + RB_TST2 = 0x2a,/* 8 bit RAM Buffer Test Register 2 */ +}; + +/* Receive and Transmit Queues */ +enum { + Q_R1 = 0x0000, /* Receive Queue 1 */ + Q_R2 = 0x0080, /* Receive Queue 2 */ + Q_XS1 = 0x0200, /* Synchronous Transmit Queue 1 */ + Q_XA1 = 0x0280, /* Asynchronous Transmit Queue 1 */ + Q_XS2 = 0x0300, /* Synchronous Transmit Queue 2 */ + Q_XA2 = 0x0380, /* Asynchronous Transmit Queue 2 */ +}; + +/* Different PHY Types */ +enum { + PHY_ADDR_MARV = 0, +}; + +#define RB_ADDR(offs, queue) ((u16) B16_RAM_REGS + (queue) + (offs)) + + +enum { + LNK_SYNC_INI = 0x0c30,/* 32 bit Link Sync Cnt Init Value */ + LNK_SYNC_VAL = 0x0c34,/* 32 bit Link Sync Cnt Current Value */ + LNK_SYNC_CTRL = 0x0c38,/* 8 bit Link Sync Cnt Control Register */ + LNK_SYNC_TST = 0x0c39,/* 8 bit Link Sync Cnt Test Register */ + + LNK_LED_REG = 0x0c3c,/* 8 bit Link LED Register */ + +/* Receive GMAC FIFO (YUKON and Yukon-2) */ + + RX_GMF_EA = 0x0c40,/* 32 bit Rx GMAC FIFO End Address */ + RX_GMF_AF_THR = 0x0c44,/* 32 bit Rx GMAC FIFO Almost Full Thresh. */ + RX_GMF_CTRL_T = 0x0c48,/* 32 bit Rx GMAC FIFO Control/Test */ + RX_GMF_FL_MSK = 0x0c4c,/* 32 bit Rx GMAC FIFO Flush Mask */ + RX_GMF_FL_THR = 0x0c50,/* 16 bit Rx GMAC FIFO Flush Threshold */ + RX_GMF_FL_CTRL = 0x0c52,/* 16 bit Rx GMAC FIFO Flush Control */ + RX_GMF_TR_THR = 0x0c54,/* 32 bit Rx Truncation Threshold (Yukon-2) */ + RX_GMF_UP_THR = 0x0c58,/* 16 bit Rx Upper Pause Thr (Yukon-EC_U) */ + RX_GMF_LP_THR = 0x0c5a,/* 16 bit Rx Lower Pause Thr (Yukon-EC_U) */ + RX_GMF_VLAN = 0x0c5c,/* 32 bit Rx VLAN Type Register (Yukon-2) */ + RX_GMF_WP = 0x0c60,/* 32 bit Rx GMAC FIFO Write Pointer */ + + RX_GMF_WLEV = 0x0c68,/* 32 bit Rx GMAC FIFO Write Level */ + + RX_GMF_RP = 0x0c70,/* 32 bit Rx GMAC FIFO Read Pointer */ + + RX_GMF_RLEV = 0x0c78,/* 32 bit Rx GMAC FIFO Read Level */ +}; + + +/* Q_BC 32 bit Current Byte Counter */ + +/* BMU Control Status Registers */ +/* B0_R1_CSR 32 bit BMU Ctrl/Stat Rx Queue 1 */ +/* B0_R2_CSR 32 bit BMU Ctrl/Stat Rx Queue 2 */ +/* B0_XA1_CSR 32 bit BMU Ctrl/Stat Sync Tx Queue 1 */ +/* B0_XS1_CSR 32 bit BMU Ctrl/Stat Async Tx Queue 1 */ +/* B0_XA2_CSR 32 bit BMU Ctrl/Stat Sync Tx Queue 2 */ +/* B0_XS2_CSR 32 bit BMU Ctrl/Stat Async Tx Queue 2 */ +/* Q_CSR 32 bit BMU Control/Status Register */ + +/* Rx BMU Control / Status Registers (Yukon-2) */ +enum { + BMU_IDLE = 1<<31, /* BMU Idle State */ + BMU_RX_TCP_PKT = 1<<30, /* Rx TCP Packet (when RSS Hash enabled) */ + BMU_RX_IP_PKT = 1<<29, /* Rx IP Packet (when RSS Hash enabled) */ + + BMU_ENA_RX_RSS_HASH = 1<<15, /* Enable Rx RSS Hash */ + BMU_DIS_RX_RSS_HASH = 1<<14, /* Disable Rx RSS Hash */ + BMU_ENA_RX_CHKSUM = 1<<13, /* Enable Rx TCP/IP Checksum Check */ + BMU_DIS_RX_CHKSUM = 1<<12, /* Disable Rx TCP/IP Checksum Check */ + BMU_CLR_IRQ_PAR = 1<<11, /* Clear IRQ on Parity errors (Rx) */ + BMU_CLR_IRQ_TCP = 1<<11, /* Clear IRQ on TCP segment. error (Tx) */ + BMU_CLR_IRQ_CHK = 1<<10, /* Clear IRQ Check */ + BMU_STOP = 1<<9, /* Stop Rx/Tx Queue */ + BMU_START = 1<<8, /* Start Rx/Tx Queue */ + BMU_FIFO_OP_ON = 1<<7, /* FIFO Operational On */ + BMU_FIFO_OP_OFF = 1<<6, /* FIFO Operational Off */ + BMU_FIFO_ENA = 1<<5, /* Enable FIFO */ + BMU_FIFO_RST = 1<<4, /* Reset FIFO */ + BMU_OP_ON = 1<<3, /* BMU Operational On */ + BMU_OP_OFF = 1<<2, /* BMU Operational Off */ + BMU_RST_CLR = 1<<1, /* Clear BMU Reset (Enable) */ + BMU_RST_SET = 1<<0, /* Set BMU Reset */ + + BMU_CLR_RESET = BMU_FIFO_RST | BMU_OP_OFF | BMU_RST_CLR, + BMU_OPER_INIT = BMU_CLR_IRQ_PAR | BMU_CLR_IRQ_CHK | BMU_START | + BMU_FIFO_ENA | BMU_OP_ON, + + BMU_WM_DEFAULT = 0x600, + BMU_WM_PEX = 0x80, +}; + +/* Tx BMU Control / Status Registers (Yukon-2) */ + /* Bit 31: same as for Rx */ +enum { + BMU_TX_IPIDINCR_ON = 1<<13, /* Enable IP ID Increment */ + BMU_TX_IPIDINCR_OFF = 1<<12, /* Disable IP ID Increment */ + BMU_TX_CLR_IRQ_TCP = 1<<11, /* Clear IRQ on TCP segment length mismatch */ +}; + +/* TBMU_TEST 0x06B8 Transmit BMU Test Register */ +enum { + TBMU_TEST_BMU_TX_CHK_AUTO_OFF = 1<<31, /* BMU Tx Checksum Auto Calculation Disable */ + TBMU_TEST_BMU_TX_CHK_AUTO_ON = 1<<30, /* BMU Tx Checksum Auto Calculation Enable */ + TBMU_TEST_HOME_ADD_PAD_FIX1_EN = 1<<29, /* Home Address Paddiing FIX1 Enable */ + TBMU_TEST_HOME_ADD_PAD_FIX1_DIS = 1<<28, /* Home Address Paddiing FIX1 Disable */ + TBMU_TEST_ROUTING_ADD_FIX_EN = 1<<27, /* Routing Address Fix Enable */ + TBMU_TEST_ROUTING_ADD_FIX_DIS = 1<<26, /* Routing Address Fix Disable */ + TBMU_TEST_HOME_ADD_FIX_EN = 1<<25, /* Home address checksum fix enable */ + TBMU_TEST_HOME_ADD_FIX_DIS = 1<<24, /* Home address checksum fix disable */ + + TBMU_TEST_TEST_RSPTR_ON = 1<<22, /* Testmode Shadow Read Ptr On */ + TBMU_TEST_TEST_RSPTR_OFF = 1<<21, /* Testmode Shadow Read Ptr Off */ + TBMU_TEST_TESTSTEP_RSPTR = 1<<20, /* Teststep Shadow Read Ptr */ + + TBMU_TEST_TEST_RPTR_ON = 1<<18, /* Testmode Read Ptr On */ + TBMU_TEST_TEST_RPTR_OFF = 1<<17, /* Testmode Read Ptr Off */ + TBMU_TEST_TESTSTEP_RPTR = 1<<16, /* Teststep Read Ptr */ + + TBMU_TEST_TEST_WSPTR_ON = 1<<14, /* Testmode Shadow Write Ptr On */ + TBMU_TEST_TEST_WSPTR_OFF = 1<<13, /* Testmode Shadow Write Ptr Off */ + TBMU_TEST_TESTSTEP_WSPTR = 1<<12, /* Teststep Shadow Write Ptr */ + + TBMU_TEST_TEST_WPTR_ON = 1<<10, /* Testmode Write Ptr On */ + TBMU_TEST_TEST_WPTR_OFF = 1<<9, /* Testmode Write Ptr Off */ + TBMU_TEST_TESTSTEP_WPTR = 1<<8, /* Teststep Write Ptr */ + + TBMU_TEST_TEST_REQ_NB_ON = 1<<6, /* Testmode Req Nbytes/Addr On */ + TBMU_TEST_TEST_REQ_NB_OFF = 1<<5, /* Testmode Req Nbytes/Addr Off */ + TBMU_TEST_TESTSTEP_REQ_NB = 1<<4, /* Teststep Req Nbytes/Addr */ + + TBMU_TEST_TEST_DONE_IDX_ON = 1<<2, /* Testmode Done Index On */ + TBMU_TEST_TEST_DONE_IDX_OFF = 1<<1, /* Testmode Done Index Off */ + TBMU_TEST_TESTSTEP_DONE_IDX = 1<<0, /* Teststep Done Index */ +}; + +/* Queue Prefetch Unit Offsets, use Y2_QADDR() to address (Yukon-2 only)*/ +/* PREF_UNIT_CTRL 32 bit Prefetch Control register */ +enum { + PREF_UNIT_OP_ON = 1<<3, /* prefetch unit operational */ + PREF_UNIT_OP_OFF = 1<<2, /* prefetch unit not operational */ + PREF_UNIT_RST_CLR = 1<<1, /* Clear Prefetch Unit Reset */ + PREF_UNIT_RST_SET = 1<<0, /* Set Prefetch Unit Reset */ +}; + +/* RAM Buffer Register Offsets, use RB_ADDR(Queue, Offs) to access */ +/* RB_START 32 bit RAM Buffer Start Address */ +/* RB_END 32 bit RAM Buffer End Address */ +/* RB_WP 32 bit RAM Buffer Write Pointer */ +/* RB_RP 32 bit RAM Buffer Read Pointer */ +/* RB_RX_UTPP 32 bit Rx Upper Threshold, Pause Pack */ +/* RB_RX_LTPP 32 bit Rx Lower Threshold, Pause Pack */ +/* RB_RX_UTHP 32 bit Rx Upper Threshold, High Prio */ +/* RB_RX_LTHP 32 bit Rx Lower Threshold, High Prio */ +/* RB_PC 32 bit RAM Buffer Packet Counter */ +/* RB_LEV 32 bit RAM Buffer Level Register */ + +#define RB_MSK 0x0007ffff /* Bit 18.. 0: RAM Buffer Pointer Bits */ +/* RB_TST2 8 bit RAM Buffer Test Register 2 */ +/* RB_TST1 8 bit RAM Buffer Test Register 1 */ + +/* RB_CTRL 8 bit RAM Buffer Control Register */ +enum { + RB_ENA_STFWD = 1<<5, /* Enable Store & Forward */ + RB_DIS_STFWD = 1<<4, /* Disable Store & Forward */ + RB_ENA_OP_MD = 1<<3, /* Enable Operation Mode */ + RB_DIS_OP_MD = 1<<2, /* Disable Operation Mode */ + RB_RST_CLR = 1<<1, /* Clear RAM Buf STM Reset */ + RB_RST_SET = 1<<0, /* Set RAM Buf STM Reset */ +}; + + +/* Transmit GMAC FIFO (YUKON only) */ +enum { + TX_GMF_EA = 0x0d40,/* 32 bit Tx GMAC FIFO End Address */ + TX_GMF_AE_THR = 0x0d44,/* 32 bit Tx GMAC FIFO Almost Empty Thresh.*/ + TX_GMF_CTRL_T = 0x0d48,/* 32 bit Tx GMAC FIFO Control/Test */ + + TX_GMF_WP = 0x0d60,/* 32 bit Tx GMAC FIFO Write Pointer */ + TX_GMF_WSP = 0x0d64,/* 32 bit Tx GMAC FIFO Write Shadow Ptr. */ + TX_GMF_WLEV = 0x0d68,/* 32 bit Tx GMAC FIFO Write Level */ + + TX_GMF_RP = 0x0d70,/* 32 bit Tx GMAC FIFO Read Pointer */ + TX_GMF_RSTP = 0x0d74,/* 32 bit Tx GMAC FIFO Restart Pointer */ + TX_GMF_RLEV = 0x0d78,/* 32 bit Tx GMAC FIFO Read Level */ + + /* Threshold values for Yukon-EC Ultra and Extreme */ + ECU_AE_THR = 0x0070, /* Almost Empty Threshold */ + ECU_TXFF_LEV = 0x01a0, /* Tx BMU FIFO Level */ + ECU_JUMBO_WM = 0x0080, /* Jumbo Mode Watermark */ +}; + +/* Descriptor Poll Timer Registers */ +enum { + B28_DPT_INI = 0x0e00,/* 24 bit Descriptor Poll Timer Init Val */ + B28_DPT_VAL = 0x0e04,/* 24 bit Descriptor Poll Timer Curr Val */ + B28_DPT_CTRL = 0x0e08,/* 8 bit Descriptor Poll Timer Ctrl Reg */ + + B28_DPT_TST = 0x0e0a,/* 8 bit Descriptor Poll Timer Test Reg */ +}; + +/* Time Stamp Timer Registers (YUKON only) */ +enum { + GMAC_TI_ST_VAL = 0x0e14,/* 32 bit Time Stamp Timer Curr Val */ + GMAC_TI_ST_CTRL = 0x0e18,/* 8 bit Time Stamp Timer Ctrl Reg */ + GMAC_TI_ST_TST = 0x0e1a,/* 8 bit Time Stamp Timer Test Reg */ +}; + +/* Polling Unit Registers (Yukon-2 only) */ +enum { + POLL_CTRL = 0x0e20, /* 32 bit Polling Unit Control Reg */ + POLL_LAST_IDX = 0x0e24,/* 16 bit Polling Unit List Last Index */ + + POLL_LIST_ADDR_LO= 0x0e28,/* 32 bit Poll. List Start Addr (low) */ + POLL_LIST_ADDR_HI= 0x0e2c,/* 32 bit Poll. List Start Addr (high) */ +}; + +enum { + SMB_CFG = 0x0e40, /* 32 bit SMBus Config Register */ + SMB_CSR = 0x0e44, /* 32 bit SMBus Control/Status Register */ +}; + +enum { + CPU_WDOG = 0x0e48, /* 32 bit Watchdog Register */ + CPU_CNTR = 0x0e4C, /* 32 bit Counter Register */ + CPU_TIM = 0x0e50,/* 32 bit Timer Compare Register */ + CPU_AHB_ADDR = 0x0e54, /* 32 bit CPU AHB Debug Register */ + CPU_AHB_WDATA = 0x0e58, /* 32 bit CPU AHB Debug Register */ + CPU_AHB_RDATA = 0x0e5C, /* 32 bit CPU AHB Debug Register */ + HCU_MAP_BASE = 0x0e60, /* 32 bit Reset Mapping Base */ + CPU_AHB_CTRL = 0x0e64, /* 32 bit CPU AHB Debug Register */ + HCU_CCSR = 0x0e68, /* 32 bit CPU Control and Status Register */ + HCU_HCSR = 0x0e6C, /* 32 bit Host Control and Status Register */ +}; + +/* ASF Subsystem Registers (Yukon-2 only) */ +enum { + B28_Y2_SMB_CONFIG = 0x0e40,/* 32 bit ASF SMBus Config Register */ + B28_Y2_SMB_CSD_REG = 0x0e44,/* 32 bit ASF SMB Control/Status/Data */ + B28_Y2_ASF_IRQ_V_BASE=0x0e60,/* 32 bit ASF IRQ Vector Base */ + + B28_Y2_ASF_STAT_CMD= 0x0e68,/* 32 bit ASF Status and Command Reg */ + B28_Y2_ASF_HOST_COM= 0x0e6c,/* 32 bit ASF Host Communication Reg */ + B28_Y2_DATA_REG_1 = 0x0e70,/* 32 bit ASF/Host Data Register 1 */ + B28_Y2_DATA_REG_2 = 0x0e74,/* 32 bit ASF/Host Data Register 2 */ + B28_Y2_DATA_REG_3 = 0x0e78,/* 32 bit ASF/Host Data Register 3 */ + B28_Y2_DATA_REG_4 = 0x0e7c,/* 32 bit ASF/Host Data Register 4 */ +}; + +/* Status BMU Registers (Yukon-2 only)*/ +enum { + STAT_CTRL = 0x0e80,/* 32 bit Status BMU Control Reg */ + STAT_LAST_IDX = 0x0e84,/* 16 bit Status BMU Last Index */ + + STAT_LIST_ADDR_LO= 0x0e88,/* 32 bit Status List Start Addr (low) */ + STAT_LIST_ADDR_HI= 0x0e8c,/* 32 bit Status List Start Addr (high) */ + STAT_TXA1_RIDX = 0x0e90,/* 16 bit Status TxA1 Report Index Reg */ + STAT_TXS1_RIDX = 0x0e92,/* 16 bit Status TxS1 Report Index Reg */ + STAT_TXA2_RIDX = 0x0e94,/* 16 bit Status TxA2 Report Index Reg */ + STAT_TXS2_RIDX = 0x0e96,/* 16 bit Status TxS2 Report Index Reg */ + STAT_TX_IDX_TH = 0x0e98,/* 16 bit Status Tx Index Threshold Reg */ + STAT_PUT_IDX = 0x0e9c,/* 16 bit Status Put Index Reg */ + +/* FIFO Control/Status Registers (Yukon-2 only)*/ + STAT_FIFO_WP = 0x0ea0,/* 8 bit Status FIFO Write Pointer Reg */ + STAT_FIFO_RP = 0x0ea4,/* 8 bit Status FIFO Read Pointer Reg */ + STAT_FIFO_RSP = 0x0ea6,/* 8 bit Status FIFO Read Shadow Ptr */ + STAT_FIFO_LEVEL = 0x0ea8,/* 8 bit Status FIFO Level Reg */ + STAT_FIFO_SHLVL = 0x0eaa,/* 8 bit Status FIFO Shadow Level Reg */ + STAT_FIFO_WM = 0x0eac,/* 8 bit Status FIFO Watermark Reg */ + STAT_FIFO_ISR_WM= 0x0ead,/* 8 bit Status FIFO ISR Watermark Reg */ + +/* Level and ISR Timer Registers (Yukon-2 only)*/ + STAT_LEV_TIMER_INI= 0x0eb0,/* 32 bit Level Timer Init. Value Reg */ + STAT_LEV_TIMER_CNT= 0x0eb4,/* 32 bit Level Timer Counter Reg */ + STAT_LEV_TIMER_CTRL= 0x0eb8,/* 8 bit Level Timer Control Reg */ + STAT_LEV_TIMER_TEST= 0x0eb9,/* 8 bit Level Timer Test Reg */ + STAT_TX_TIMER_INI = 0x0ec0,/* 32 bit Tx Timer Init. Value Reg */ + STAT_TX_TIMER_CNT = 0x0ec4,/* 32 bit Tx Timer Counter Reg */ + STAT_TX_TIMER_CTRL = 0x0ec8,/* 8 bit Tx Timer Control Reg */ + STAT_TX_TIMER_TEST = 0x0ec9,/* 8 bit Tx Timer Test Reg */ + STAT_ISR_TIMER_INI = 0x0ed0,/* 32 bit ISR Timer Init. Value Reg */ + STAT_ISR_TIMER_CNT = 0x0ed4,/* 32 bit ISR Timer Counter Reg */ + STAT_ISR_TIMER_CTRL= 0x0ed8,/* 8 bit ISR Timer Control Reg */ + STAT_ISR_TIMER_TEST= 0x0ed9,/* 8 bit ISR Timer Test Reg */ +}; + +enum { + LINKLED_OFF = 0x01, + LINKLED_ON = 0x02, + LINKLED_LINKSYNC_OFF = 0x04, + LINKLED_LINKSYNC_ON = 0x08, + LINKLED_BLINK_OFF = 0x10, + LINKLED_BLINK_ON = 0x20, +}; + +/* GMAC and GPHY Control Registers (YUKON only) */ +enum { + GMAC_CTRL = 0x0f00,/* 32 bit GMAC Control Reg */ + GPHY_CTRL = 0x0f04,/* 32 bit GPHY Control Reg */ + GMAC_IRQ_SRC = 0x0f08,/* 8 bit GMAC Interrupt Source Reg */ + GMAC_IRQ_MSK = 0x0f0c,/* 8 bit GMAC Interrupt Mask Reg */ + GMAC_LINK_CTRL = 0x0f10,/* 16 bit Link Control Reg */ + +/* Wake-up Frame Pattern Match Control Registers (YUKON only) */ + WOL_CTRL_STAT = 0x0f20,/* 16 bit WOL Control/Status Reg */ + WOL_MATCH_CTL = 0x0f22,/* 8 bit WOL Match Control Reg */ + WOL_MATCH_RES = 0x0f23,/* 8 bit WOL Match Result Reg */ + WOL_MAC_ADDR = 0x0f24,/* 32 bit WOL MAC Address */ + WOL_PATT_RPTR = 0x0f2c,/* 8 bit WOL Pattern Read Pointer */ + +/* WOL Pattern Length Registers (YUKON only) */ + WOL_PATT_LEN_LO = 0x0f30,/* 32 bit WOL Pattern Length 3..0 */ + WOL_PATT_LEN_HI = 0x0f34,/* 24 bit WOL Pattern Length 6..4 */ + +/* WOL Pattern Counter Registers (YUKON only) */ + WOL_PATT_CNT_0 = 0x0f38,/* 32 bit WOL Pattern Counter 3..0 */ + WOL_PATT_CNT_4 = 0x0f3c,/* 24 bit WOL Pattern Counter 6..4 */ +}; +#define WOL_REGS(port, x) (x + (port)*0x80) + +enum { + WOL_PATT_RAM_1 = 0x1000,/* WOL Pattern RAM Link 1 */ + WOL_PATT_RAM_2 = 0x1400,/* WOL Pattern RAM Link 2 */ +}; +#define WOL_PATT_RAM_BASE(port) (WOL_PATT_RAM_1 + (port)*0x400) + +enum { + BASE_GMAC_1 = 0x2800,/* GMAC 1 registers */ + BASE_GMAC_2 = 0x3800,/* GMAC 2 registers */ +}; + +/* + * Marvel-PHY Registers, indirect addressed over GMAC + */ +enum { + PHY_MARV_CTRL = 0x00,/* 16 bit r/w PHY Control Register */ + PHY_MARV_STAT = 0x01,/* 16 bit r/o PHY Status Register */ + PHY_MARV_ID0 = 0x02,/* 16 bit r/o PHY ID0 Register */ + PHY_MARV_ID1 = 0x03,/* 16 bit r/o PHY ID1 Register */ + PHY_MARV_AUNE_ADV = 0x04,/* 16 bit r/w Auto-Neg. Advertisement */ + PHY_MARV_AUNE_LP = 0x05,/* 16 bit r/o Link Part Ability Reg */ + PHY_MARV_AUNE_EXP = 0x06,/* 16 bit r/o Auto-Neg. Expansion Reg */ + PHY_MARV_NEPG = 0x07,/* 16 bit r/w Next Page Register */ + PHY_MARV_NEPG_LP = 0x08,/* 16 bit r/o Next Page Link Partner */ + /* Marvel-specific registers */ + PHY_MARV_1000T_CTRL = 0x09,/* 16 bit r/w 1000Base-T Control Reg */ + PHY_MARV_1000T_STAT = 0x0a,/* 16 bit r/o 1000Base-T Status Reg */ + PHY_MARV_EXT_STAT = 0x0f,/* 16 bit r/o Extended Status Reg */ + PHY_MARV_PHY_CTRL = 0x10,/* 16 bit r/w PHY Specific Ctrl Reg */ + PHY_MARV_PHY_STAT = 0x11,/* 16 bit r/o PHY Specific Stat Reg */ + PHY_MARV_INT_MASK = 0x12,/* 16 bit r/w Interrupt Mask Reg */ + PHY_MARV_INT_STAT = 0x13,/* 16 bit r/o Interrupt Status Reg */ + PHY_MARV_EXT_CTRL = 0x14,/* 16 bit r/w Ext. PHY Specific Ctrl */ + PHY_MARV_RXE_CNT = 0x15,/* 16 bit r/w Receive Error Counter */ + PHY_MARV_EXT_ADR = 0x16,/* 16 bit r/w Ext. Ad. for Cable Diag. */ + PHY_MARV_PORT_IRQ = 0x17,/* 16 bit r/o Port 0 IRQ (88E1111 only) */ + PHY_MARV_LED_CTRL = 0x18,/* 16 bit r/w LED Control Reg */ + PHY_MARV_LED_OVER = 0x19,/* 16 bit r/w Manual LED Override Reg */ + PHY_MARV_EXT_CTRL_2 = 0x1a,/* 16 bit r/w Ext. PHY Specific Ctrl 2 */ + PHY_MARV_EXT_P_STAT = 0x1b,/* 16 bit r/w Ext. PHY Spec. Stat Reg */ + PHY_MARV_CABLE_DIAG = 0x1c,/* 16 bit r/o Cable Diagnostic Reg */ + PHY_MARV_PAGE_ADDR = 0x1d,/* 16 bit r/w Extended Page Address Reg */ + PHY_MARV_PAGE_DATA = 0x1e,/* 16 bit r/w Extended Page Data Reg */ + +/* for 10/100 Fast Ethernet PHY (88E3082 only) */ + PHY_MARV_FE_LED_PAR = 0x16,/* 16 bit r/w LED Parallel Select Reg. */ + PHY_MARV_FE_LED_SER = 0x17,/* 16 bit r/w LED Stream Select S. LED */ + PHY_MARV_FE_VCT_TX = 0x1a,/* 16 bit r/w VCT Reg. for TXP/N Pins */ + PHY_MARV_FE_VCT_RX = 0x1b,/* 16 bit r/o VCT Reg. for RXP/N Pins */ + PHY_MARV_FE_SPEC_2 = 0x1c,/* 16 bit r/w Specific Control Reg. 2 */ +}; + +enum { + PHY_CT_RESET = 1<<15, /* Bit 15: (sc) clear all PHY related regs */ + PHY_CT_LOOP = 1<<14, /* Bit 14: enable Loopback over PHY */ + PHY_CT_SPS_LSB = 1<<13, /* Bit 13: Speed select, lower bit */ + PHY_CT_ANE = 1<<12, /* Bit 12: Auto-Negotiation Enabled */ + PHY_CT_PDOWN = 1<<11, /* Bit 11: Power Down Mode */ + PHY_CT_ISOL = 1<<10, /* Bit 10: Isolate Mode */ + PHY_CT_RE_CFG = 1<<9, /* Bit 9: (sc) Restart Auto-Negotiation */ + PHY_CT_DUP_MD = 1<<8, /* Bit 8: Duplex Mode */ + PHY_CT_COL_TST = 1<<7, /* Bit 7: Collision Test enabled */ + PHY_CT_SPS_MSB = 1<<6, /* Bit 6: Speed select, upper bit */ +}; + +enum { + PHY_CT_SP1000 = PHY_CT_SPS_MSB, /* enable speed of 1000 Mbps */ + PHY_CT_SP100 = PHY_CT_SPS_LSB, /* enable speed of 100 Mbps */ + PHY_CT_SP10 = 0, /* enable speed of 10 Mbps */ +}; + +enum { + PHY_ST_EXT_ST = 1<<8, /* Bit 8: Extended Status Present */ + + PHY_ST_PRE_SUP = 1<<6, /* Bit 6: Preamble Suppression */ + PHY_ST_AN_OVER = 1<<5, /* Bit 5: Auto-Negotiation Over */ + PHY_ST_REM_FLT = 1<<4, /* Bit 4: Remote Fault Condition Occurred */ + PHY_ST_AN_CAP = 1<<3, /* Bit 3: Auto-Negotiation Capability */ + PHY_ST_LSYNC = 1<<2, /* Bit 2: Link Synchronized */ + PHY_ST_JAB_DET = 1<<1, /* Bit 1: Jabber Detected */ + PHY_ST_EXT_REG = 1<<0, /* Bit 0: Extended Register available */ +}; + +enum { + PHY_I1_OUI_MSK = 0x3f<<10, /* Bit 15..10: Organization Unique ID */ + PHY_I1_MOD_NUM = 0x3f<<4, /* Bit 9.. 4: Model Number */ + PHY_I1_REV_MSK = 0xf, /* Bit 3.. 0: Revision Number */ +}; + +/* different Marvell PHY Ids */ +enum { + PHY_MARV_ID0_VAL= 0x0141, /* Marvell Unique Identifier */ + + PHY_BCOM_ID1_A1 = 0x6041, + PHY_BCOM_ID1_B2 = 0x6043, + PHY_BCOM_ID1_C0 = 0x6044, + PHY_BCOM_ID1_C5 = 0x6047, + + PHY_MARV_ID1_B0 = 0x0C23, /* Yukon (PHY 88E1011) */ + PHY_MARV_ID1_B2 = 0x0C25, /* Yukon-Plus (PHY 88E1011) */ + PHY_MARV_ID1_C2 = 0x0CC2, /* Yukon-EC (PHY 88E1111) */ + PHY_MARV_ID1_Y2 = 0x0C91, /* Yukon-2 (PHY 88E1112) */ + PHY_MARV_ID1_FE = 0x0C83, /* Yukon-FE (PHY 88E3082 Rev.A1) */ + PHY_MARV_ID1_ECU= 0x0CB0, /* Yukon-ECU (PHY 88E1149 Rev.B2?) */ +}; + +/* Advertisement register bits */ +enum { + PHY_AN_NXT_PG = 1<<15, /* Bit 15: Request Next Page */ + PHY_AN_ACK = 1<<14, /* Bit 14: (ro) Acknowledge Received */ + PHY_AN_RF = 1<<13, /* Bit 13: Remote Fault Bits */ + + PHY_AN_PAUSE_ASYM = 1<<11,/* Bit 11: Try for asymmetric */ + PHY_AN_PAUSE_CAP = 1<<10, /* Bit 10: Try for pause */ + PHY_AN_100BASE4 = 1<<9, /* Bit 9: Try for 100mbps 4k packets */ + PHY_AN_100FULL = 1<<8, /* Bit 8: Try for 100mbps full-duplex */ + PHY_AN_100HALF = 1<<7, /* Bit 7: Try for 100mbps half-duplex */ + PHY_AN_10FULL = 1<<6, /* Bit 6: Try for 10mbps full-duplex */ + PHY_AN_10HALF = 1<<5, /* Bit 5: Try for 10mbps half-duplex */ + PHY_AN_CSMA = 1<<0, /* Bit 0: Only selector supported */ + PHY_AN_SEL = 0x1f, /* Bit 4..0: Selector Field, 00001=Ethernet*/ + PHY_AN_FULL = PHY_AN_100FULL | PHY_AN_10FULL | PHY_AN_CSMA, + PHY_AN_ALL = PHY_AN_10HALF | PHY_AN_10FULL | + PHY_AN_100HALF | PHY_AN_100FULL, +}; + +/***** PHY_BCOM_1000T_STAT 16 bit r/o 1000Base-T Status Reg *****/ +/***** PHY_MARV_1000T_STAT 16 bit r/o 1000Base-T Status Reg *****/ +enum { + PHY_B_1000S_MSF = 1<<15, /* Bit 15: Master/Slave Fault */ + PHY_B_1000S_MSR = 1<<14, /* Bit 14: Master/Slave Result */ + PHY_B_1000S_LRS = 1<<13, /* Bit 13: Local Receiver Status */ + PHY_B_1000S_RRS = 1<<12, /* Bit 12: Remote Receiver Status */ + PHY_B_1000S_LP_FD = 1<<11, /* Bit 11: Link Partner can FD */ + PHY_B_1000S_LP_HD = 1<<10, /* Bit 10: Link Partner can HD */ + /* Bit 9..8: reserved */ + PHY_B_1000S_IEC = 0xff, /* Bit 7..0: Idle Error Count */ +}; + +/** Marvell-Specific */ +enum { + PHY_M_AN_NXT_PG = 1<<15, /* Request Next Page */ + PHY_M_AN_ACK = 1<<14, /* (ro) Acknowledge Received */ + PHY_M_AN_RF = 1<<13, /* Remote Fault */ + + PHY_M_AN_ASP = 1<<11, /* Asymmetric Pause */ + PHY_M_AN_PC = 1<<10, /* MAC Pause implemented */ + PHY_M_AN_100_T4 = 1<<9, /* Not cap. 100Base-T4 (always 0) */ + PHY_M_AN_100_FD = 1<<8, /* Advertise 100Base-TX Full Duplex */ + PHY_M_AN_100_HD = 1<<7, /* Advertise 100Base-TX Half Duplex */ + PHY_M_AN_10_FD = 1<<6, /* Advertise 10Base-TX Full Duplex */ + PHY_M_AN_10_HD = 1<<5, /* Advertise 10Base-TX Half Duplex */ + PHY_M_AN_SEL_MSK =0x1f<<4, /* Bit 4.. 0: Selector Field Mask */ +}; + +/* special defines for FIBER (88E1011S only) */ +enum { + PHY_M_AN_ASP_X = 1<<8, /* Asymmetric Pause */ + PHY_M_AN_PC_X = 1<<7, /* MAC Pause implemented */ + PHY_M_AN_1000X_AHD = 1<<6, /* Advertise 10000Base-X Half Duplex */ + PHY_M_AN_1000X_AFD = 1<<5, /* Advertise 10000Base-X Full Duplex */ +}; + +/* Pause Bits (PHY_M_AN_ASP_X and PHY_M_AN_PC_X) encoding */ +enum { + PHY_M_P_NO_PAUSE_X = 0<<7,/* Bit 8.. 7: no Pause Mode */ + PHY_M_P_SYM_MD_X = 1<<7, /* Bit 8.. 7: symmetric Pause Mode */ + PHY_M_P_ASYM_MD_X = 2<<7,/* Bit 8.. 7: asymmetric Pause Mode */ + PHY_M_P_BOTH_MD_X = 3<<7,/* Bit 8.. 7: both Pause Mode */ +}; + +/***** PHY_MARV_1000T_CTRL 16 bit r/w 1000Base-T Control Reg *****/ +enum { + PHY_M_1000C_TEST = 7<<13,/* Bit 15..13: Test Modes */ + PHY_M_1000C_MSE = 1<<12, /* Manual Master/Slave Enable */ + PHY_M_1000C_MSC = 1<<11, /* M/S Configuration (1=Master) */ + PHY_M_1000C_MPD = 1<<10, /* Multi-Port Device */ + PHY_M_1000C_AFD = 1<<9, /* Advertise Full Duplex */ + PHY_M_1000C_AHD = 1<<8, /* Advertise Half Duplex */ +}; + +/***** PHY_MARV_PHY_CTRL 16 bit r/w PHY Specific Ctrl Reg *****/ +enum { + PHY_M_PC_TX_FFD_MSK = 3<<14,/* Bit 15..14: Tx FIFO Depth Mask */ + PHY_M_PC_RX_FFD_MSK = 3<<12,/* Bit 13..12: Rx FIFO Depth Mask */ + PHY_M_PC_ASS_CRS_TX = 1<<11, /* Assert CRS on Transmit */ + PHY_M_PC_FL_GOOD = 1<<10, /* Force Link Good */ + PHY_M_PC_EN_DET_MSK = 3<<8,/* Bit 9.. 8: Energy Detect Mask */ + PHY_M_PC_ENA_EXT_D = 1<<7, /* Enable Ext. Distance (10BT) */ + PHY_M_PC_MDIX_MSK = 3<<5,/* Bit 6.. 5: MDI/MDIX Config. Mask */ + PHY_M_PC_DIS_125CLK = 1<<4, /* Disable 125 CLK */ + PHY_M_PC_MAC_POW_UP = 1<<3, /* MAC Power up */ + PHY_M_PC_SQE_T_ENA = 1<<2, /* SQE Test Enabled */ + PHY_M_PC_POL_R_DIS = 1<<1, /* Polarity Reversal Disabled */ + PHY_M_PC_DIS_JABBER = 1<<0, /* Disable Jabber */ +}; + +enum { + PHY_M_PC_EN_DET = 2<<8, /* Energy Detect (Mode 1) */ + PHY_M_PC_EN_DET_PLUS = 3<<8, /* Energy Detect Plus (Mode 2) */ +}; + +#define PHY_M_PC_MDI_XMODE(x) (((u16)(x)<<5) & PHY_M_PC_MDIX_MSK) + +enum { + PHY_M_PC_MAN_MDI = 0, /* 00 = Manual MDI configuration */ + PHY_M_PC_MAN_MDIX = 1, /* 01 = Manual MDIX configuration */ + PHY_M_PC_ENA_AUTO = 3, /* 11 = Enable Automatic Crossover */ +}; + +/* for Yukon-EC Ultra Gigabit Ethernet PHY (88E1149 only) */ +enum { + PHY_M_PC_COP_TX_DIS = 1<<3, /* Copper Transmitter Disable */ + PHY_M_PC_POW_D_ENA = 1<<2, /* Power Down Enable */ +}; + +/* for 10/100 Fast Ethernet PHY (88E3082 only) */ +enum { + PHY_M_PC_ENA_DTE_DT = 1<<15, /* Enable Data Terminal Equ. (DTE) Detect */ + PHY_M_PC_ENA_ENE_DT = 1<<14, /* Enable Energy Detect (sense & pulse) */ + PHY_M_PC_DIS_NLP_CK = 1<<13, /* Disable Normal Link Puls (NLP) Check */ + PHY_M_PC_ENA_LIP_NP = 1<<12, /* Enable Link Partner Next Page Reg. */ + PHY_M_PC_DIS_NLP_GN = 1<<11, /* Disable Normal Link Puls Generation */ + + PHY_M_PC_DIS_SCRAMB = 1<<9, /* Disable Scrambler */ + PHY_M_PC_DIS_FEFI = 1<<8, /* Disable Far End Fault Indic. (FEFI) */ + + PHY_M_PC_SH_TP_SEL = 1<<6, /* Shielded Twisted Pair Select */ + PHY_M_PC_RX_FD_MSK = 3<<2,/* Bit 3.. 2: Rx FIFO Depth Mask */ +}; + +/***** PHY_MARV_PHY_STAT 16 bit r/o PHY Specific Status Reg *****/ +enum { + PHY_M_PS_SPEED_MSK = 3<<14, /* Bit 15..14: Speed Mask */ + PHY_M_PS_SPEED_1000 = 1<<15, /* 10 = 1000 Mbps */ + PHY_M_PS_SPEED_100 = 1<<14, /* 01 = 100 Mbps */ + PHY_M_PS_SPEED_10 = 0, /* 00 = 10 Mbps */ + PHY_M_PS_FULL_DUP = 1<<13, /* Full Duplex */ + PHY_M_PS_PAGE_REC = 1<<12, /* Page Received */ + PHY_M_PS_SPDUP_RES = 1<<11, /* Speed & Duplex Resolved */ + PHY_M_PS_LINK_UP = 1<<10, /* Link Up */ + PHY_M_PS_CABLE_MSK = 7<<7, /* Bit 9.. 7: Cable Length Mask */ + PHY_M_PS_MDI_X_STAT = 1<<6, /* MDI Crossover Stat (1=MDIX) */ + PHY_M_PS_DOWNS_STAT = 1<<5, /* Downshift Status (1=downsh.) */ + PHY_M_PS_ENDET_STAT = 1<<4, /* Energy Detect Status (1=act) */ + PHY_M_PS_TX_P_EN = 1<<3, /* Tx Pause Enabled */ + PHY_M_PS_RX_P_EN = 1<<2, /* Rx Pause Enabled */ + PHY_M_PS_POL_REV = 1<<1, /* Polarity Reversed */ + PHY_M_PS_JABBER = 1<<0, /* Jabber */ +}; + +#define PHY_M_PS_PAUSE_MSK (PHY_M_PS_TX_P_EN | PHY_M_PS_RX_P_EN) + +/* for 10/100 Fast Ethernet PHY (88E3082 only) */ +enum { + PHY_M_PS_DTE_DETECT = 1<<15, /* Data Terminal Equipment (DTE) Detected */ + PHY_M_PS_RES_SPEED = 1<<14, /* Resolved Speed (1=100 Mbps, 0=10 Mbps */ +}; + +enum { + PHY_M_IS_AN_ERROR = 1<<15, /* Auto-Negotiation Error */ + PHY_M_IS_LSP_CHANGE = 1<<14, /* Link Speed Changed */ + PHY_M_IS_DUP_CHANGE = 1<<13, /* Duplex Mode Changed */ + PHY_M_IS_AN_PR = 1<<12, /* Page Received */ + PHY_M_IS_AN_COMPL = 1<<11, /* Auto-Negotiation Completed */ + PHY_M_IS_LST_CHANGE = 1<<10, /* Link Status Changed */ + PHY_M_IS_SYMB_ERROR = 1<<9, /* Symbol Error */ + PHY_M_IS_FALSE_CARR = 1<<8, /* False Carrier */ + PHY_M_IS_FIFO_ERROR = 1<<7, /* FIFO Overflow/Underrun Error */ + PHY_M_IS_MDI_CHANGE = 1<<6, /* MDI Crossover Changed */ + PHY_M_IS_DOWNSH_DET = 1<<5, /* Downshift Detected */ + PHY_M_IS_END_CHANGE = 1<<4, /* Energy Detect Changed */ + + PHY_M_IS_DTE_CHANGE = 1<<2, /* DTE Power Det. Status Changed */ + PHY_M_IS_POL_CHANGE = 1<<1, /* Polarity Changed */ + PHY_M_IS_JABBER = 1<<0, /* Jabber */ + + PHY_M_DEF_MSK = PHY_M_IS_LSP_CHANGE | PHY_M_IS_LST_CHANGE + | PHY_M_IS_DUP_CHANGE, + PHY_M_AN_MSK = PHY_M_IS_AN_ERROR | PHY_M_IS_AN_COMPL, +}; + + +/***** PHY_MARV_EXT_CTRL 16 bit r/w Ext. PHY Specific Ctrl *****/ +enum { + PHY_M_EC_ENA_BC_EXT = 1<<15, /* Enable Block Carr. Ext. (88E1111 only) */ + PHY_M_EC_ENA_LIN_LB = 1<<14, /* Enable Line Loopback (88E1111 only) */ + + PHY_M_EC_DIS_LINK_P = 1<<12, /* Disable Link Pulses (88E1111 only) */ + PHY_M_EC_M_DSC_MSK = 3<<10, /* Bit 11..10: Master Downshift Counter */ + /* (88E1011 only) */ + PHY_M_EC_S_DSC_MSK = 3<<8,/* Bit 9.. 8: Slave Downshift Counter */ + /* (88E1011 only) */ + PHY_M_EC_M_DSC_MSK2 = 7<<9,/* Bit 11.. 9: Master Downshift Counter */ + /* (88E1111 only) */ + PHY_M_EC_DOWN_S_ENA = 1<<8, /* Downshift Enable (88E1111 only) */ + /* !!! Errata in spec. (1 = disable) */ + PHY_M_EC_RX_TIM_CT = 1<<7, /* RGMII Rx Timing Control*/ + PHY_M_EC_MAC_S_MSK = 7<<4,/* Bit 6.. 4: Def. MAC interface speed */ + PHY_M_EC_FIB_AN_ENA = 1<<3, /* Fiber Auto-Neg. Enable (88E1011S only) */ + PHY_M_EC_DTE_D_ENA = 1<<2, /* DTE Detect Enable (88E1111 only) */ + PHY_M_EC_TX_TIM_CT = 1<<1, /* RGMII Tx Timing Control */ + PHY_M_EC_TRANS_DIS = 1<<0, /* Transmitter Disable (88E1111 only) */ + + PHY_M_10B_TE_ENABLE = 1<<7, /* 10Base-Te Enable (88E8079 and above) */ +}; +#define PHY_M_EC_M_DSC(x) ((u16)(x)<<10 & PHY_M_EC_M_DSC_MSK) + /* 00=1x; 01=2x; 10=3x; 11=4x */ +#define PHY_M_EC_S_DSC(x) ((u16)(x)<<8 & PHY_M_EC_S_DSC_MSK) + /* 00=dis; 01=1x; 10=2x; 11=3x */ +#define PHY_M_EC_DSC_2(x) ((u16)(x)<<9 & PHY_M_EC_M_DSC_MSK2) + /* 000=1x; 001=2x; 010=3x; 011=4x */ +#define PHY_M_EC_MAC_S(x) ((u16)(x)<<4 & PHY_M_EC_MAC_S_MSK) + /* 01X=0; 110=2.5; 111=25 (MHz) */ + +/* for Yukon-2 Gigabit Ethernet PHY (88E1112 only) */ +enum { + PHY_M_PC_DIS_LINK_Pa = 1<<15,/* Disable Link Pulses */ + PHY_M_PC_DSC_MSK = 7<<12,/* Bit 14..12: Downshift Counter */ + PHY_M_PC_DOWN_S_ENA = 1<<11,/* Downshift Enable */ +}; +/* !!! Errata in spec. (1 = disable) */ + +#define PHY_M_PC_DSC(x) (((u16)(x)<<12) & PHY_M_PC_DSC_MSK) + /* 100=5x; 101=6x; 110=7x; 111=8x */ +enum { + MAC_TX_CLK_0_MHZ = 2, + MAC_TX_CLK_2_5_MHZ = 6, + MAC_TX_CLK_25_MHZ = 7, +}; + +/***** PHY_MARV_LED_CTRL 16 bit r/w LED Control Reg *****/ +enum { + PHY_M_LEDC_DIS_LED = 1<<15, /* Disable LED */ + PHY_M_LEDC_PULS_MSK = 7<<12,/* Bit 14..12: Pulse Stretch Mask */ + PHY_M_LEDC_F_INT = 1<<11, /* Force Interrupt */ + PHY_M_LEDC_BL_R_MSK = 7<<8,/* Bit 10.. 8: Blink Rate Mask */ + PHY_M_LEDC_DP_C_LSB = 1<<7, /* Duplex Control (LSB, 88E1111 only) */ + PHY_M_LEDC_TX_C_LSB = 1<<6, /* Tx Control (LSB, 88E1111 only) */ + PHY_M_LEDC_LK_C_MSK = 7<<3,/* Bit 5.. 3: Link Control Mask */ + /* (88E1111 only) */ +}; + +enum { + PHY_M_LEDC_LINK_MSK = 3<<3,/* Bit 4.. 3: Link Control Mask */ + /* (88E1011 only) */ + PHY_M_LEDC_DP_CTRL = 1<<2, /* Duplex Control */ + PHY_M_LEDC_DP_C_MSB = 1<<2, /* Duplex Control (MSB, 88E1111 only) */ + PHY_M_LEDC_RX_CTRL = 1<<1, /* Rx Activity / Link */ + PHY_M_LEDC_TX_CTRL = 1<<0, /* Tx Activity / Link */ + PHY_M_LEDC_TX_C_MSB = 1<<0, /* Tx Control (MSB, 88E1111 only) */ +}; + +#define PHY_M_LED_PULS_DUR(x) (((u16)(x)<<12) & PHY_M_LEDC_PULS_MSK) + +/***** PHY_MARV_PHY_STAT (page 3)16 bit r/w Polarity Control Reg. *****/ +enum { + PHY_M_POLC_LS1M_MSK = 0xf<<12, /* Bit 15..12: LOS,STAT1 Mix % Mask */ + PHY_M_POLC_IS0M_MSK = 0xf<<8, /* Bit 11.. 8: INIT,STAT0 Mix % Mask */ + PHY_M_POLC_LOS_MSK = 0x3<<6, /* Bit 7.. 6: LOS Pol. Ctrl. Mask */ + PHY_M_POLC_INIT_MSK = 0x3<<4, /* Bit 5.. 4: INIT Pol. Ctrl. Mask */ + PHY_M_POLC_STA1_MSK = 0x3<<2, /* Bit 3.. 2: STAT1 Pol. Ctrl. Mask */ + PHY_M_POLC_STA0_MSK = 0x3, /* Bit 1.. 0: STAT0 Pol. Ctrl. Mask */ +}; + +#define PHY_M_POLC_LS1_P_MIX(x) (((x)<<12) & PHY_M_POLC_LS1M_MSK) +#define PHY_M_POLC_IS0_P_MIX(x) (((x)<<8) & PHY_M_POLC_IS0M_MSK) +#define PHY_M_POLC_LOS_CTRL(x) (((x)<<6) & PHY_M_POLC_LOS_MSK) +#define PHY_M_POLC_INIT_CTRL(x) (((x)<<4) & PHY_M_POLC_INIT_MSK) +#define PHY_M_POLC_STA1_CTRL(x) (((x)<<2) & PHY_M_POLC_STA1_MSK) +#define PHY_M_POLC_STA0_CTRL(x) (((x)<<0) & PHY_M_POLC_STA0_MSK) + +enum { + PULS_NO_STR = 0,/* no pulse stretching */ + PULS_21MS = 1,/* 21 ms to 42 ms */ + PULS_42MS = 2,/* 42 ms to 84 ms */ + PULS_84MS = 3,/* 84 ms to 170 ms */ + PULS_170MS = 4,/* 170 ms to 340 ms */ + PULS_340MS = 5,/* 340 ms to 670 ms */ + PULS_670MS = 6,/* 670 ms to 1.3 s */ + PULS_1300MS = 7,/* 1.3 s to 2.7 s */ +}; + +#define PHY_M_LED_BLINK_RT(x) (((u16)(x)<<8) & PHY_M_LEDC_BL_R_MSK) + +enum { + BLINK_42MS = 0,/* 42 ms */ + BLINK_84MS = 1,/* 84 ms */ + BLINK_170MS = 2,/* 170 ms */ + BLINK_340MS = 3,/* 340 ms */ + BLINK_670MS = 4,/* 670 ms */ +}; + +/***** PHY_MARV_LED_OVER 16 bit r/w Manual LED Override Reg *****/ +#define PHY_M_LED_MO_SGMII(x) ((x)<<14) /* Bit 15..14: SGMII AN Timer */ + +#define PHY_M_LED_MO_DUP(x) ((x)<<10) /* Bit 11..10: Duplex */ +#define PHY_M_LED_MO_10(x) ((x)<<8) /* Bit 9.. 8: Link 10 */ +#define PHY_M_LED_MO_100(x) ((x)<<6) /* Bit 7.. 6: Link 100 */ +#define PHY_M_LED_MO_1000(x) ((x)<<4) /* Bit 5.. 4: Link 1000 */ +#define PHY_M_LED_MO_RX(x) ((x)<<2) /* Bit 3.. 2: Rx */ +#define PHY_M_LED_MO_TX(x) ((x)<<0) /* Bit 1.. 0: Tx */ + +enum led_mode { + MO_LED_NORM = 0, + MO_LED_BLINK = 1, + MO_LED_OFF = 2, + MO_LED_ON = 3, +}; + +/***** PHY_MARV_EXT_CTRL_2 16 bit r/w Ext. PHY Specific Ctrl 2 *****/ +enum { + PHY_M_EC2_FI_IMPED = 1<<6, /* Fiber Input Impedance */ + PHY_M_EC2_FO_IMPED = 1<<5, /* Fiber Output Impedance */ + PHY_M_EC2_FO_M_CLK = 1<<4, /* Fiber Mode Clock Enable */ + PHY_M_EC2_FO_BOOST = 1<<3, /* Fiber Output Boost */ + PHY_M_EC2_FO_AM_MSK = 7,/* Bit 2.. 0: Fiber Output Amplitude */ +}; + +/***** PHY_MARV_EXT_P_STAT 16 bit r/w Ext. PHY Specific Status *****/ +enum { + PHY_M_FC_AUTO_SEL = 1<<15, /* Fiber/Copper Auto Sel. Dis. */ + PHY_M_FC_AN_REG_ACC = 1<<14, /* Fiber/Copper AN Reg. Access */ + PHY_M_FC_RESOLUTION = 1<<13, /* Fiber/Copper Resolution */ + PHY_M_SER_IF_AN_BP = 1<<12, /* Ser. IF AN Bypass Enable */ + PHY_M_SER_IF_BP_ST = 1<<11, /* Ser. IF AN Bypass Status */ + PHY_M_IRQ_POLARITY = 1<<10, /* IRQ polarity */ + PHY_M_DIS_AUT_MED = 1<<9, /* Disable Aut. Medium Reg. Selection */ + /* (88E1111 only) */ + + PHY_M_UNDOC1 = 1<<7, /* undocumented bit !! */ + PHY_M_DTE_POW_STAT = 1<<4, /* DTE Power Status (88E1111 only) */ + PHY_M_MODE_MASK = 0xf, /* Bit 3.. 0: copy of HWCFG MODE[3:0] */ +}; + +/* for 10/100 Fast Ethernet PHY (88E3082 only) */ +/***** PHY_MARV_FE_LED_PAR 16 bit r/w LED Parallel Select Reg. *****/ + /* Bit 15..12: reserved (used internally) */ +enum { + PHY_M_FELP_LED2_MSK = 0xf<<8, /* Bit 11.. 8: LED2 Mask (LINK) */ + PHY_M_FELP_LED1_MSK = 0xf<<4, /* Bit 7.. 4: LED1 Mask (ACT) */ + PHY_M_FELP_LED0_MSK = 0xf, /* Bit 3.. 0: LED0 Mask (SPEED) */ +}; + +#define PHY_M_FELP_LED2_CTRL(x) (((u16)(x)<<8) & PHY_M_FELP_LED2_MSK) +#define PHY_M_FELP_LED1_CTRL(x) (((u16)(x)<<4) & PHY_M_FELP_LED1_MSK) +#define PHY_M_FELP_LED0_CTRL(x) (((u16)(x)<<0) & PHY_M_FELP_LED0_MSK) + +enum { + LED_PAR_CTRL_COLX = 0x00, + LED_PAR_CTRL_ERROR = 0x01, + LED_PAR_CTRL_DUPLEX = 0x02, + LED_PAR_CTRL_DP_COL = 0x03, + LED_PAR_CTRL_SPEED = 0x04, + LED_PAR_CTRL_LINK = 0x05, + LED_PAR_CTRL_TX = 0x06, + LED_PAR_CTRL_RX = 0x07, + LED_PAR_CTRL_ACT = 0x08, + LED_PAR_CTRL_LNK_RX = 0x09, + LED_PAR_CTRL_LNK_AC = 0x0a, + LED_PAR_CTRL_ACT_BL = 0x0b, + LED_PAR_CTRL_TX_BL = 0x0c, + LED_PAR_CTRL_RX_BL = 0x0d, + LED_PAR_CTRL_COL_BL = 0x0e, + LED_PAR_CTRL_INACT = 0x0f +}; + +/*****,PHY_MARV_FE_SPEC_2 16 bit r/w Specific Control Reg. 2 *****/ +enum { + PHY_M_FESC_DIS_WAIT = 1<<2, /* Disable TDR Waiting Period */ + PHY_M_FESC_ENA_MCLK = 1<<1, /* Enable MAC Rx Clock in sleep mode */ + PHY_M_FESC_SEL_CL_A = 1<<0, /* Select Class A driver (100B-TX) */ +}; + +/* for Yukon-2 Gigabit Ethernet PHY (88E1112 only) */ +/***** PHY_MARV_PHY_CTRL (page 1) 16 bit r/w Fiber Specific Ctrl *****/ +enum { + PHY_M_FIB_FORCE_LNK = 1<<10,/* Force Link Good */ + PHY_M_FIB_SIGD_POL = 1<<9, /* SIGDET Polarity */ + PHY_M_FIB_TX_DIS = 1<<3, /* Transmitter Disable */ +}; + +/* for Yukon-2 Gigabit Ethernet PHY (88E1112 only) */ +/***** PHY_MARV_PHY_CTRL (page 2) 16 bit r/w MAC Specific Ctrl *****/ +enum { + PHY_M_MAC_MD_MSK = 7<<7, /* Bit 9.. 7: Mode Select Mask */ + PHY_M_MAC_GMIF_PUP = 1<<3, /* GMII Power Up (88E1149 only) */ + PHY_M_MAC_MD_AUTO = 3,/* Auto Copper/1000Base-X */ + PHY_M_MAC_MD_COPPER = 5,/* Copper only */ + PHY_M_MAC_MD_1000BX = 7,/* 1000Base-X only */ +}; +#define PHY_M_MAC_MODE_SEL(x) (((x)<<7) & PHY_M_MAC_MD_MSK) + +/***** PHY_MARV_PHY_CTRL (page 3) 16 bit r/w LED Control Reg. *****/ +enum { + PHY_M_LEDC_LOS_MSK = 0xf<<12,/* Bit 15..12: LOS LED Ctrl. Mask */ + PHY_M_LEDC_INIT_MSK = 0xf<<8, /* Bit 11.. 8: INIT LED Ctrl. Mask */ + PHY_M_LEDC_STA1_MSK = 0xf<<4,/* Bit 7.. 4: STAT1 LED Ctrl. Mask */ + PHY_M_LEDC_STA0_MSK = 0xf, /* Bit 3.. 0: STAT0 LED Ctrl. Mask */ +}; + +#define PHY_M_LEDC_LOS_CTRL(x) (((x)<<12) & PHY_M_LEDC_LOS_MSK) +#define PHY_M_LEDC_INIT_CTRL(x) (((x)<<8) & PHY_M_LEDC_INIT_MSK) +#define PHY_M_LEDC_STA1_CTRL(x) (((x)<<4) & PHY_M_LEDC_STA1_MSK) +#define PHY_M_LEDC_STA0_CTRL(x) (((x)<<0) & PHY_M_LEDC_STA0_MSK) + +/* GMAC registers */ +/* Port Registers */ +enum { + GM_GP_STAT = 0x0000, /* 16 bit r/o General Purpose Status */ + GM_GP_CTRL = 0x0004, /* 16 bit r/w General Purpose Control */ + GM_TX_CTRL = 0x0008, /* 16 bit r/w Transmit Control Reg. */ + GM_RX_CTRL = 0x000c, /* 16 bit r/w Receive Control Reg. */ + GM_TX_FLOW_CTRL = 0x0010, /* 16 bit r/w Transmit Flow-Control */ + GM_TX_PARAM = 0x0014, /* 16 bit r/w Transmit Parameter Reg. */ + GM_SERIAL_MODE = 0x0018, /* 16 bit r/w Serial Mode Register */ +/* Source Address Registers */ + GM_SRC_ADDR_1L = 0x001c, /* 16 bit r/w Source Address 1 (low) */ + GM_SRC_ADDR_1M = 0x0020, /* 16 bit r/w Source Address 1 (middle) */ + GM_SRC_ADDR_1H = 0x0024, /* 16 bit r/w Source Address 1 (high) */ + GM_SRC_ADDR_2L = 0x0028, /* 16 bit r/w Source Address 2 (low) */ + GM_SRC_ADDR_2M = 0x002c, /* 16 bit r/w Source Address 2 (middle) */ + GM_SRC_ADDR_2H = 0x0030, /* 16 bit r/w Source Address 2 (high) */ + +/* Multicast Address Hash Registers */ + GM_MC_ADDR_H1 = 0x0034, /* 16 bit r/w Multicast Address Hash 1 */ + GM_MC_ADDR_H2 = 0x0038, /* 16 bit r/w Multicast Address Hash 2 */ + GM_MC_ADDR_H3 = 0x003c, /* 16 bit r/w Multicast Address Hash 3 */ + GM_MC_ADDR_H4 = 0x0040, /* 16 bit r/w Multicast Address Hash 4 */ + +/* Interrupt Source Registers */ + GM_TX_IRQ_SRC = 0x0044, /* 16 bit r/o Tx Overflow IRQ Source */ + GM_RX_IRQ_SRC = 0x0048, /* 16 bit r/o Rx Overflow IRQ Source */ + GM_TR_IRQ_SRC = 0x004c, /* 16 bit r/o Tx/Rx Over. IRQ Source */ + +/* Interrupt Mask Registers */ + GM_TX_IRQ_MSK = 0x0050, /* 16 bit r/w Tx Overflow IRQ Mask */ + GM_RX_IRQ_MSK = 0x0054, /* 16 bit r/w Rx Overflow IRQ Mask */ + GM_TR_IRQ_MSK = 0x0058, /* 16 bit r/w Tx/Rx Over. IRQ Mask */ + +/* Serial Management Interface (SMI) Registers */ + GM_SMI_CTRL = 0x0080, /* 16 bit r/w SMI Control Register */ + GM_SMI_DATA = 0x0084, /* 16 bit r/w SMI Data Register */ + GM_PHY_ADDR = 0x0088, /* 16 bit r/w GPHY Address Register */ +/* MIB Counters */ + GM_MIB_CNT_BASE = 0x0100, /* Base Address of MIB Counters */ + GM_MIB_CNT_END = 0x025C, /* Last MIB counter */ +}; + + +/* + * MIB Counters base address definitions (low word) - + * use offset 4 for access to high word (32 bit r/o) + */ +enum { + GM_RXF_UC_OK = GM_MIB_CNT_BASE + 0, /* Unicast Frames Received OK */ + GM_RXF_BC_OK = GM_MIB_CNT_BASE + 8, /* Broadcast Frames Received OK */ + GM_RXF_MPAUSE = GM_MIB_CNT_BASE + 16, /* Pause MAC Ctrl Frames Received */ + GM_RXF_MC_OK = GM_MIB_CNT_BASE + 24, /* Multicast Frames Received OK */ + GM_RXF_FCS_ERR = GM_MIB_CNT_BASE + 32, /* Rx Frame Check Seq. Error */ + + GM_RXO_OK_LO = GM_MIB_CNT_BASE + 48, /* Octets Received OK Low */ + GM_RXO_OK_HI = GM_MIB_CNT_BASE + 56, /* Octets Received OK High */ + GM_RXO_ERR_LO = GM_MIB_CNT_BASE + 64, /* Octets Received Invalid Low */ + GM_RXO_ERR_HI = GM_MIB_CNT_BASE + 72, /* Octets Received Invalid High */ + GM_RXF_SHT = GM_MIB_CNT_BASE + 80, /* Frames <64 Byte Received OK */ + GM_RXE_FRAG = GM_MIB_CNT_BASE + 88, /* Frames <64 Byte Received with FCS Err */ + GM_RXF_64B = GM_MIB_CNT_BASE + 96, /* 64 Byte Rx Frame */ + GM_RXF_127B = GM_MIB_CNT_BASE + 104,/* 65-127 Byte Rx Frame */ + GM_RXF_255B = GM_MIB_CNT_BASE + 112,/* 128-255 Byte Rx Frame */ + GM_RXF_511B = GM_MIB_CNT_BASE + 120,/* 256-511 Byte Rx Frame */ + GM_RXF_1023B = GM_MIB_CNT_BASE + 128,/* 512-1023 Byte Rx Frame */ + GM_RXF_1518B = GM_MIB_CNT_BASE + 136,/* 1024-1518 Byte Rx Frame */ + GM_RXF_MAX_SZ = GM_MIB_CNT_BASE + 144,/* 1519-MaxSize Byte Rx Frame */ + GM_RXF_LNG_ERR = GM_MIB_CNT_BASE + 152,/* Rx Frame too Long Error */ + GM_RXF_JAB_PKT = GM_MIB_CNT_BASE + 160,/* Rx Jabber Packet Frame */ + + GM_RXE_FIFO_OV = GM_MIB_CNT_BASE + 176,/* Rx FIFO overflow Event */ + GM_TXF_UC_OK = GM_MIB_CNT_BASE + 192,/* Unicast Frames Xmitted OK */ + GM_TXF_BC_OK = GM_MIB_CNT_BASE + 200,/* Broadcast Frames Xmitted OK */ + GM_TXF_MPAUSE = GM_MIB_CNT_BASE + 208,/* Pause MAC Ctrl Frames Xmitted */ + GM_TXF_MC_OK = GM_MIB_CNT_BASE + 216,/* Multicast Frames Xmitted OK */ + GM_TXO_OK_LO = GM_MIB_CNT_BASE + 224,/* Octets Transmitted OK Low */ + GM_TXO_OK_HI = GM_MIB_CNT_BASE + 232,/* Octets Transmitted OK High */ + GM_TXF_64B = GM_MIB_CNT_BASE + 240,/* 64 Byte Tx Frame */ + GM_TXF_127B = GM_MIB_CNT_BASE + 248,/* 65-127 Byte Tx Frame */ + GM_TXF_255B = GM_MIB_CNT_BASE + 256,/* 128-255 Byte Tx Frame */ + GM_TXF_511B = GM_MIB_CNT_BASE + 264,/* 256-511 Byte Tx Frame */ + GM_TXF_1023B = GM_MIB_CNT_BASE + 272,/* 512-1023 Byte Tx Frame */ + GM_TXF_1518B = GM_MIB_CNT_BASE + 280,/* 1024-1518 Byte Tx Frame */ + GM_TXF_MAX_SZ = GM_MIB_CNT_BASE + 288,/* 1519-MaxSize Byte Tx Frame */ + + GM_TXF_COL = GM_MIB_CNT_BASE + 304,/* Tx Collision */ + GM_TXF_LAT_COL = GM_MIB_CNT_BASE + 312,/* Tx Late Collision */ + GM_TXF_ABO_COL = GM_MIB_CNT_BASE + 320,/* Tx aborted due to Exces. Col. */ + GM_TXF_MUL_COL = GM_MIB_CNT_BASE + 328,/* Tx Multiple Collision */ + GM_TXF_SNG_COL = GM_MIB_CNT_BASE + 336,/* Tx Single Collision */ + GM_TXE_FIFO_UR = GM_MIB_CNT_BASE + 344,/* Tx FIFO Underrun Event */ +}; + +/* GMAC Bit Definitions */ +/* GM_GP_STAT 16 bit r/o General Purpose Status Register */ +enum { + GM_GPSR_SPEED = 1<<15, /* Bit 15: Port Speed (1 = 100 Mbps) */ + GM_GPSR_DUPLEX = 1<<14, /* Bit 14: Duplex Mode (1 = Full) */ + GM_GPSR_FC_TX_DIS = 1<<13, /* Bit 13: Tx Flow-Control Mode Disabled */ + GM_GPSR_LINK_UP = 1<<12, /* Bit 12: Link Up Status */ + GM_GPSR_PAUSE = 1<<11, /* Bit 11: Pause State */ + GM_GPSR_TX_ACTIVE = 1<<10, /* Bit 10: Tx in Progress */ + GM_GPSR_EXC_COL = 1<<9, /* Bit 9: Excessive Collisions Occurred */ + GM_GPSR_LAT_COL = 1<<8, /* Bit 8: Late Collisions Occurred */ + + GM_GPSR_PHY_ST_CH = 1<<5, /* Bit 5: PHY Status Change */ + GM_GPSR_GIG_SPEED = 1<<4, /* Bit 4: Gigabit Speed (1 = 1000 Mbps) */ + GM_GPSR_PART_MODE = 1<<3, /* Bit 3: Partition mode */ + GM_GPSR_FC_RX_DIS = 1<<2, /* Bit 2: Rx Flow-Control Mode Disabled */ + GM_GPSR_PROM_EN = 1<<1, /* Bit 1: Promiscuous Mode Enabled */ +}; + +/* GM_GP_CTRL 16 bit r/w General Purpose Control Register */ +enum { + GM_GPCR_PROM_ENA = 1<<14, /* Bit 14: Enable Promiscuous Mode */ + GM_GPCR_FC_TX_DIS = 1<<13, /* Bit 13: Disable Tx Flow-Control Mode */ + GM_GPCR_TX_ENA = 1<<12, /* Bit 12: Enable Transmit */ + GM_GPCR_RX_ENA = 1<<11, /* Bit 11: Enable Receive */ + GM_GPCR_BURST_ENA = 1<<10, /* Bit 10: Enable Burst Mode */ + GM_GPCR_LOOP_ENA = 1<<9, /* Bit 9: Enable MAC Loopback Mode */ + GM_GPCR_PART_ENA = 1<<8, /* Bit 8: Enable Partition Mode */ + GM_GPCR_GIGS_ENA = 1<<7, /* Bit 7: Gigabit Speed (1000 Mbps) */ + GM_GPCR_FL_PASS = 1<<6, /* Bit 6: Force Link Pass */ + GM_GPCR_DUP_FULL = 1<<5, /* Bit 5: Full Duplex Mode */ + GM_GPCR_FC_RX_DIS = 1<<4, /* Bit 4: Disable Rx Flow-Control Mode */ + GM_GPCR_SPEED_100 = 1<<3, /* Bit 3: Port Speed 100 Mbps */ + GM_GPCR_AU_DUP_DIS = 1<<2, /* Bit 2: Disable Auto-Update Duplex */ + GM_GPCR_AU_FCT_DIS = 1<<1, /* Bit 1: Disable Auto-Update Flow-C. */ + GM_GPCR_AU_SPD_DIS = 1<<0, /* Bit 0: Disable Auto-Update Speed */ +}; + +#define GM_GPCR_SPEED_1000 (GM_GPCR_GIGS_ENA | GM_GPCR_SPEED_100) + +/* GM_TX_CTRL 16 bit r/w Transmit Control Register */ +enum { + GM_TXCR_FORCE_JAM = 1<<15, /* Bit 15: Force Jam / Flow-Control */ + GM_TXCR_CRC_DIS = 1<<14, /* Bit 14: Disable insertion of CRC */ + GM_TXCR_PAD_DIS = 1<<13, /* Bit 13: Disable padding of packets */ + GM_TXCR_COL_THR_MSK = 7<<10, /* Bit 12..10: Collision Threshold */ +}; + +#define TX_COL_THR(x) (((x)<<10) & GM_TXCR_COL_THR_MSK) +#define TX_COL_DEF 0x04 + +/* GM_RX_CTRL 16 bit r/w Receive Control Register */ +enum { + GM_RXCR_UCF_ENA = 1<<15, /* Bit 15: Enable Unicast filtering */ + GM_RXCR_MCF_ENA = 1<<14, /* Bit 14: Enable Multicast filtering */ + GM_RXCR_CRC_DIS = 1<<13, /* Bit 13: Remove 4-byte CRC */ + GM_RXCR_PASS_FC = 1<<12, /* Bit 12: Pass FC packets to FIFO */ +}; + +/* GM_TX_PARAM 16 bit r/w Transmit Parameter Register */ +enum { + GM_TXPA_JAMLEN_MSK = 0x03<<14, /* Bit 15..14: Jam Length */ + GM_TXPA_JAMIPG_MSK = 0x1f<<9, /* Bit 13..9: Jam IPG */ + GM_TXPA_JAMDAT_MSK = 0x1f<<4, /* Bit 8..4: IPG Jam to Data */ + GM_TXPA_BO_LIM_MSK = 0x0f, /* Bit 3.. 0: Backoff Limit Mask */ + + TX_JAM_LEN_DEF = 0x03, + TX_JAM_IPG_DEF = 0x0b, + TX_IPG_JAM_DEF = 0x1c, + TX_BOF_LIM_DEF = 0x04, +}; + +#define TX_JAM_LEN_VAL(x) (((x)<<14) & GM_TXPA_JAMLEN_MSK) +#define TX_JAM_IPG_VAL(x) (((x)<<9) & GM_TXPA_JAMIPG_MSK) +#define TX_IPG_JAM_DATA(x) (((x)<<4) & GM_TXPA_JAMDAT_MSK) +#define TX_BACK_OFF_LIM(x) ((x) & GM_TXPA_BO_LIM_MSK) + + +/* GM_SERIAL_MODE 16 bit r/w Serial Mode Register */ +enum { + GM_SMOD_DATABL_MSK = 0x1f<<11, /* Bit 15..11: Data Blinder (r/o) */ + GM_SMOD_LIMIT_4 = 1<<10, /* 4 consecutive Tx trials */ + GM_SMOD_VLAN_ENA = 1<<9, /* Enable VLAN (Max. Frame Len) */ + GM_SMOD_JUMBO_ENA = 1<<8, /* Enable Jumbo (Max. Frame Len) */ + + GM_NEW_FLOW_CTRL = 1<<6, /* Enable New Flow-Control */ + + GM_SMOD_IPG_MSK = 0x1f /* Bit 4..0: Inter-Packet Gap (IPG) */ +}; + +#define DATA_BLIND_VAL(x) (((x)<<11) & GM_SMOD_DATABL_MSK) +#define IPG_DATA_VAL(x) (x & GM_SMOD_IPG_MSK) + +#define DATA_BLIND_DEF 0x04 +#define IPG_DATA_DEF_1000 0x1e +#define IPG_DATA_DEF_10_100 0x18 + +/* GM_SMI_CTRL 16 bit r/w SMI Control Register */ +enum { + GM_SMI_CT_PHY_A_MSK = 0x1f<<11,/* Bit 15..11: PHY Device Address */ + GM_SMI_CT_REG_A_MSK = 0x1f<<6,/* Bit 10.. 6: PHY Register Address */ + GM_SMI_CT_OP_RD = 1<<5, /* Bit 5: OpCode Read (0=Write)*/ + GM_SMI_CT_RD_VAL = 1<<4, /* Bit 4: Read Valid (Read completed) */ + GM_SMI_CT_BUSY = 1<<3, /* Bit 3: Busy (Operation in progress) */ +}; + +#define GM_SMI_CT_PHY_AD(x) (((u16)(x)<<11) & GM_SMI_CT_PHY_A_MSK) +#define GM_SMI_CT_REG_AD(x) (((u16)(x)<<6) & GM_SMI_CT_REG_A_MSK) + +/* GM_PHY_ADDR 16 bit r/w GPHY Address Register */ +enum { + GM_PAR_MIB_CLR = 1<<5, /* Bit 5: Set MIB Clear Counter Mode */ + GM_PAR_MIB_TST = 1<<4, /* Bit 4: MIB Load Counter (Test Mode) */ +}; + +/* Receive Frame Status Encoding */ +enum { + GMR_FS_LEN = 0x7fff<<16, /* Bit 30..16: Rx Frame Length */ + GMR_FS_VLAN = 1<<13, /* VLAN Packet */ + GMR_FS_JABBER = 1<<12, /* Jabber Packet */ + GMR_FS_UN_SIZE = 1<<11, /* Undersize Packet */ + GMR_FS_MC = 1<<10, /* Multicast Packet */ + GMR_FS_BC = 1<<9, /* Broadcast Packet */ + GMR_FS_RX_OK = 1<<8, /* Receive OK (Good Packet) */ + GMR_FS_GOOD_FC = 1<<7, /* Good Flow-Control Packet */ + GMR_FS_BAD_FC = 1<<6, /* Bad Flow-Control Packet */ + GMR_FS_MII_ERR = 1<<5, /* MII Error */ + GMR_FS_LONG_ERR = 1<<4, /* Too Long Packet */ + GMR_FS_FRAGMENT = 1<<3, /* Fragment */ + + GMR_FS_CRC_ERR = 1<<1, /* CRC Error */ + GMR_FS_RX_FF_OV = 1<<0, /* Rx FIFO Overflow */ + + GMR_FS_ANY_ERR = GMR_FS_RX_FF_OV | GMR_FS_CRC_ERR | + GMR_FS_FRAGMENT | GMR_FS_LONG_ERR | + GMR_FS_MII_ERR | GMR_FS_BAD_FC | + GMR_FS_UN_SIZE | GMR_FS_JABBER, +}; + +/* RX_GMF_CTRL_T 32 bit Rx GMAC FIFO Control/Test */ +enum { + RX_GCLKMAC_ENA = 1<<31, /* RX MAC Clock Gating Enable */ + RX_GCLKMAC_OFF = 1<<30, + + RX_STFW_DIS = 1<<29, /* RX Store and Forward Enable */ + RX_STFW_ENA = 1<<28, + + RX_TRUNC_ON = 1<<27, /* enable packet truncation */ + RX_TRUNC_OFF = 1<<26, /* disable packet truncation */ + RX_VLAN_STRIP_ON = 1<<25, /* enable VLAN stripping */ + RX_VLAN_STRIP_OFF = 1<<24, /* disable VLAN stripping */ + + RX_MACSEC_FLUSH_ON = 1<<23, + RX_MACSEC_FLUSH_OFF = 1<<22, + RX_MACSEC_ASF_FLUSH_ON = 1<<21, + RX_MACSEC_ASF_FLUSH_OFF = 1<<20, + + GMF_RX_OVER_ON = 1<<19, /* enable flushing on receive overrun */ + GMF_RX_OVER_OFF = 1<<18, /* disable flushing on receive overrun */ + GMF_ASF_RX_OVER_ON = 1<<17, /* enable flushing of ASF when overrun */ + GMF_ASF_RX_OVER_OFF = 1<<16, /* disable flushing of ASF when overrun */ + + GMF_WP_TST_ON = 1<<14, /* Write Pointer Test On */ + GMF_WP_TST_OFF = 1<<13, /* Write Pointer Test Off */ + GMF_WP_STEP = 1<<12, /* Write Pointer Step/Increment */ + + GMF_RP_TST_ON = 1<<10, /* Read Pointer Test On */ + GMF_RP_TST_OFF = 1<<9, /* Read Pointer Test Off */ + GMF_RP_STEP = 1<<8, /* Read Pointer Step/Increment */ + GMF_RX_F_FL_ON = 1<<7, /* Rx FIFO Flush Mode On */ + GMF_RX_F_FL_OFF = 1<<6, /* Rx FIFO Flush Mode Off */ + GMF_CLI_RX_FO = 1<<5, /* Clear IRQ Rx FIFO Overrun */ + GMF_CLI_RX_C = 1<<4, /* Clear IRQ Rx Frame Complete */ + + GMF_OPER_ON = 1<<3, /* Operational Mode On */ + GMF_OPER_OFF = 1<<2, /* Operational Mode Off */ + GMF_RST_CLR = 1<<1, /* Clear GMAC FIFO Reset */ + GMF_RST_SET = 1<<0, /* Set GMAC FIFO Reset */ + + RX_GMF_FL_THR_DEF = 0xa, /* flush threshold (default) */ + + GMF_RX_CTRL_DEF = GMF_OPER_ON | GMF_RX_F_FL_ON, +}; + +/* RX_GMF_FL_CTRL 16 bit Rx GMAC FIFO Flush Control (Yukon-Supreme) */ +enum { + RX_IPV6_SA_MOB_ENA = 1<<9, /* IPv6 SA Mobility Support Enable */ + RX_IPV6_SA_MOB_DIS = 1<<8, /* IPv6 SA Mobility Support Disable */ + RX_IPV6_DA_MOB_ENA = 1<<7, /* IPv6 DA Mobility Support Enable */ + RX_IPV6_DA_MOB_DIS = 1<<6, /* IPv6 DA Mobility Support Disable */ + RX_PTR_SYNCDLY_ENA = 1<<5, /* Pointers Delay Synch Enable */ + RX_PTR_SYNCDLY_DIS = 1<<4, /* Pointers Delay Synch Disable */ + RX_ASF_NEWFLAG_ENA = 1<<3, /* RX ASF Flag New Logic Enable */ + RX_ASF_NEWFLAG_DIS = 1<<2, /* RX ASF Flag New Logic Disable */ + RX_FLSH_MISSPKT_ENA = 1<<1, /* RX Flush Miss-Packet Enable */ + RX_FLSH_MISSPKT_DIS = 1<<0, /* RX Flush Miss-Packet Disable */ +}; + +/* TX_GMF_EA 32 bit Tx GMAC FIFO End Address */ +enum { + TX_DYN_WM_ENA = 3, /* Yukon-FE+ specific */ +}; + +/* TX_GMF_CTRL_T 32 bit Tx GMAC FIFO Control/Test */ +enum { + TX_STFW_DIS = 1<<31,/* Disable Store & Forward */ + TX_STFW_ENA = 1<<30,/* Enable Store & Forward */ + + TX_VLAN_TAG_ON = 1<<25,/* enable VLAN tagging */ + TX_VLAN_TAG_OFF = 1<<24,/* disable VLAN tagging */ + + TX_PCI_JUM_ENA = 1<<23,/* PCI Jumbo Mode enable */ + TX_PCI_JUM_DIS = 1<<22,/* PCI Jumbo Mode enable */ + + GMF_WSP_TST_ON = 1<<18,/* Write Shadow Pointer Test On */ + GMF_WSP_TST_OFF = 1<<17,/* Write Shadow Pointer Test Off */ + GMF_WSP_STEP = 1<<16,/* Write Shadow Pointer Step/Increment */ + + GMF_CLI_TX_FU = 1<<6, /* Clear IRQ Tx FIFO Underrun */ + GMF_CLI_TX_FC = 1<<5, /* Clear IRQ Tx Frame Complete */ + GMF_CLI_TX_PE = 1<<4, /* Clear IRQ Tx Parity Error */ +}; + +/* GMAC_TI_ST_CTRL 8 bit Time Stamp Timer Ctrl Reg (YUKON only) */ +enum { + GMT_ST_START = 1<<2, /* Start Time Stamp Timer */ + GMT_ST_STOP = 1<<1, /* Stop Time Stamp Timer */ + GMT_ST_CLR_IRQ = 1<<0, /* Clear Time Stamp Timer IRQ */ +}; + +/* B28_Y2_ASF_STAT_CMD 32 bit ASF Status and Command Reg */ +enum { + Y2_ASF_OS_PRES = 1<<4, /* ASF operation system present */ + Y2_ASF_RESET = 1<<3, /* ASF system in reset state */ + Y2_ASF_RUNNING = 1<<2, /* ASF system operational */ + Y2_ASF_CLR_HSTI = 1<<1, /* Clear ASF IRQ */ + Y2_ASF_IRQ = 1<<0, /* Issue an IRQ to ASF system */ + + Y2_ASF_UC_STATE = 3<<2, /* ASF uC State */ + Y2_ASF_CLK_HALT = 0, /* ASF system clock stopped */ +}; + +/* B28_Y2_ASF_HOST_COM 32 bit ASF Host Communication Reg */ +enum { + Y2_ASF_CLR_ASFI = 1<<1, /* Clear host IRQ */ + Y2_ASF_HOST_IRQ = 1<<0, /* Issue an IRQ to HOST system */ +}; +/* HCU_CCSR CPU Control and Status Register */ +enum { + HCU_CCSR_SMBALERT_MONITOR= 1<<27, /* SMBALERT pin monitor */ + HCU_CCSR_CPU_SLEEP = 1<<26, /* CPU sleep status */ + /* Clock Stretching Timeout */ + HCU_CCSR_CS_TO = 1<<25, + HCU_CCSR_WDOG = 1<<24, /* Watchdog Reset */ + + HCU_CCSR_CLR_IRQ_HOST = 1<<17, /* Clear IRQ_HOST */ + HCU_CCSR_SET_IRQ_HCU = 1<<16, /* Set IRQ_HCU */ + + HCU_CCSR_AHB_RST = 1<<9, /* Reset AHB bridge */ + HCU_CCSR_CPU_RST_MODE = 1<<8, /* CPU Reset Mode */ + + HCU_CCSR_SET_SYNC_CPU = 1<<5, + HCU_CCSR_CPU_CLK_DIVIDE_MSK = 3<<3,/* CPU Clock Divide */ + HCU_CCSR_CPU_CLK_DIVIDE_BASE= 1<<3, + HCU_CCSR_OS_PRSNT = 1<<2, /* ASF OS Present */ +/* Microcontroller State */ + HCU_CCSR_UC_STATE_MSK = 3, + HCU_CCSR_UC_STATE_BASE = 1<<0, + HCU_CCSR_ASF_RESET = 0, + HCU_CCSR_ASF_HALTED = 1<<1, + HCU_CCSR_ASF_RUNNING = 1<<0, +}; + +/* HCU_HCSR Host Control and Status Register */ +enum { + HCU_HCSR_SET_IRQ_CPU = 1<<16, /* Set IRQ_CPU */ + + HCU_HCSR_CLR_IRQ_HCU = 1<<1, /* Clear IRQ_HCU */ + HCU_HCSR_SET_IRQ_HOST = 1<<0, /* Set IRQ_HOST */ +}; + +/* STAT_CTRL 32 bit Status BMU control register (Yukon-2 only) */ +enum { + SC_STAT_CLR_IRQ = 1<<4, /* Status Burst IRQ clear */ + SC_STAT_OP_ON = 1<<3, /* Operational Mode On */ + SC_STAT_OP_OFF = 1<<2, /* Operational Mode Off */ + SC_STAT_RST_CLR = 1<<1, /* Clear Status Unit Reset (Enable) */ + SC_STAT_RST_SET = 1<<0, /* Set Status Unit Reset */ +}; + +/* GMAC_CTRL 32 bit GMAC Control Reg (YUKON only) */ +enum { + GMC_SET_RST = 1<<15,/* MAC SEC RST */ + GMC_SEC_RST_OFF = 1<<14,/* MAC SEC RSt OFF */ + GMC_BYP_MACSECRX_ON = 1<<13,/* Bypass macsec RX */ + GMC_BYP_MACSECRX_OFF= 1<<12,/* Bypass macsec RX off */ + GMC_BYP_MACSECTX_ON = 1<<11,/* Bypass macsec TX */ + GMC_BYP_MACSECTX_OFF= 1<<10,/* Bypass macsec TX off*/ + GMC_BYP_RETR_ON = 1<<9, /* Bypass retransmit FIFO On */ + GMC_BYP_RETR_OFF= 1<<8, /* Bypass retransmit FIFO Off */ + + GMC_H_BURST_ON = 1<<7, /* Half Duplex Burst Mode On */ + GMC_H_BURST_OFF = 1<<6, /* Half Duplex Burst Mode Off */ + GMC_F_LOOPB_ON = 1<<5, /* FIFO Loopback On */ + GMC_F_LOOPB_OFF = 1<<4, /* FIFO Loopback Off */ + GMC_PAUSE_ON = 1<<3, /* Pause On */ + GMC_PAUSE_OFF = 1<<2, /* Pause Off */ + GMC_RST_CLR = 1<<1, /* Clear GMAC Reset */ + GMC_RST_SET = 1<<0, /* Set GMAC Reset */ +}; + +/* GPHY_CTRL 32 bit GPHY Control Reg (YUKON only) */ +enum { + GPC_TX_PAUSE = 1<<30, /* Tx pause enabled (ro) */ + GPC_RX_PAUSE = 1<<29, /* Rx pause enabled (ro) */ + GPC_SPEED = 3<<27, /* PHY speed (ro) */ + GPC_LINK = 1<<26, /* Link up (ro) */ + GPC_DUPLEX = 1<<25, /* Duplex (ro) */ + GPC_CLOCK = 1<<24, /* 125Mhz clock stable (ro) */ + + GPC_PDOWN = 1<<23, /* Internal regulator 2.5 power down */ + GPC_TSTMODE = 1<<22, /* Test mode */ + GPC_REG18 = 1<<21, /* Reg18 Power down */ + GPC_REG12SEL = 3<<19, /* Reg12 power setting */ + GPC_REG18SEL = 3<<17, /* Reg18 power setting */ + GPC_SPILOCK = 1<<16, /* SPI lock (ASF) */ + + GPC_LEDMUX = 3<<14, /* LED Mux */ + GPC_INTPOL = 1<<13, /* Interrupt polarity */ + GPC_DETECT = 1<<12, /* Energy detect */ + GPC_1000HD = 1<<11, /* Enable 1000Mbit HD */ + GPC_SLAVE = 1<<10, /* Slave mode */ + GPC_PAUSE = 1<<9, /* Pause enable */ + GPC_LEDCTL = 3<<6, /* GPHY Leds */ + + GPC_RST_CLR = 1<<1, /* Clear GPHY Reset */ + GPC_RST_SET = 1<<0, /* Set GPHY Reset */ +}; + +/* GMAC_IRQ_SRC 8 bit GMAC Interrupt Source Reg (YUKON only) */ +/* GMAC_IRQ_MSK 8 bit GMAC Interrupt Mask Reg (YUKON only) */ +enum { + GM_IS_TX_CO_OV = 1<<5, /* Transmit Counter Overflow IRQ */ + GM_IS_RX_CO_OV = 1<<4, /* Receive Counter Overflow IRQ */ + GM_IS_TX_FF_UR = 1<<3, /* Transmit FIFO Underrun */ + GM_IS_TX_COMPL = 1<<2, /* Frame Transmission Complete */ + GM_IS_RX_FF_OR = 1<<1, /* Receive FIFO Overrun */ + GM_IS_RX_COMPL = 1<<0, /* Frame Reception Complete */ + +#define GMAC_DEF_MSK (GM_IS_TX_FF_UR | GM_IS_RX_FF_OR) +}; + +/* GMAC_LINK_CTRL 16 bit GMAC Link Control Reg (YUKON only) */ +enum { /* Bits 15.. 2: reserved */ + GMLC_RST_CLR = 1<<1, /* Clear GMAC Link Reset */ + GMLC_RST_SET = 1<<0, /* Set GMAC Link Reset */ +}; + + +/* WOL_CTRL_STAT 16 bit WOL Control/Status Reg */ +enum { + WOL_CTL_LINK_CHG_OCC = 1<<15, + WOL_CTL_MAGIC_PKT_OCC = 1<<14, + WOL_CTL_PATTERN_OCC = 1<<13, + WOL_CTL_CLEAR_RESULT = 1<<12, + WOL_CTL_ENA_PME_ON_LINK_CHG = 1<<11, + WOL_CTL_DIS_PME_ON_LINK_CHG = 1<<10, + WOL_CTL_ENA_PME_ON_MAGIC_PKT = 1<<9, + WOL_CTL_DIS_PME_ON_MAGIC_PKT = 1<<8, + WOL_CTL_ENA_PME_ON_PATTERN = 1<<7, + WOL_CTL_DIS_PME_ON_PATTERN = 1<<6, + WOL_CTL_ENA_LINK_CHG_UNIT = 1<<5, + WOL_CTL_DIS_LINK_CHG_UNIT = 1<<4, + WOL_CTL_ENA_MAGIC_PKT_UNIT = 1<<3, + WOL_CTL_DIS_MAGIC_PKT_UNIT = 1<<2, + WOL_CTL_ENA_PATTERN_UNIT = 1<<1, + WOL_CTL_DIS_PATTERN_UNIT = 1<<0, +}; + + +/* Control flags */ +enum { + UDPTCP = 1<<0, + CALSUM = 1<<1, + WR_SUM = 1<<2, + INIT_SUM= 1<<3, + LOCK_SUM= 1<<4, + INS_VLAN= 1<<5, + EOP = 1<<7, +}; + +enum { + HW_OWNER = 1<<7, + OP_TCPWRITE = 0x11, + OP_TCPSTART = 0x12, + OP_TCPINIT = 0x14, + OP_TCPLCK = 0x18, + OP_TCPCHKSUM = OP_TCPSTART, + OP_TCPIS = OP_TCPINIT | OP_TCPSTART, + OP_TCPLW = OP_TCPLCK | OP_TCPWRITE, + OP_TCPLSW = OP_TCPLCK | OP_TCPSTART | OP_TCPWRITE, + OP_TCPLISW = OP_TCPLCK | OP_TCPINIT | OP_TCPSTART | OP_TCPWRITE, + + OP_ADDR64 = 0x21, + OP_VLAN = 0x22, + OP_ADDR64VLAN = OP_ADDR64 | OP_VLAN, + OP_LRGLEN = 0x24, + OP_LRGLENVLAN = OP_LRGLEN | OP_VLAN, + OP_MSS = 0x28, + OP_MSSVLAN = OP_MSS | OP_VLAN, + + OP_BUFFER = 0x40, + OP_PACKET = 0x41, + OP_LARGESEND = 0x43, + OP_LSOV2 = 0x45, + +/* YUKON-2 STATUS opcodes defines */ + OP_RXSTAT = 0x60, + OP_RXTIMESTAMP = 0x61, + OP_RXVLAN = 0x62, + OP_RXCHKS = 0x64, + OP_RXCHKSVLAN = OP_RXCHKS | OP_RXVLAN, + OP_RXTIMEVLAN = OP_RXTIMESTAMP | OP_RXVLAN, + OP_RSS_HASH = 0x65, + OP_TXINDEXLE = 0x68, + OP_MACSEC = 0x6c, + OP_PUTIDX = 0x70, +}; + +enum status_css { + CSS_TCPUDPCSOK = 1<<7, /* TCP / UDP checksum is ok */ + CSS_ISUDP = 1<<6, /* packet is a UDP packet */ + CSS_ISTCP = 1<<5, /* packet is a TCP packet */ + CSS_ISIPFRAG = 1<<4, /* packet is a TCP/UDP frag, CS calc not done */ + CSS_ISIPV6 = 1<<3, /* packet is a IPv6 packet */ + CSS_IPV4CSUMOK = 1<<2, /* IP v4: TCP header checksum is ok */ + CSS_ISIPV4 = 1<<1, /* packet is a IPv4 packet */ + CSS_LINK_BIT = 1<<0, /* port number (legacy) */ +}; + +/* Yukon 2 hardware interface */ +struct sky2_tx_le { + __le32 addr; + __le16 length; /* also vlan tag or checksum start */ + u8 ctrl; + u8 opcode; +} __packed; + +struct sky2_rx_le { + __le32 addr; + __le16 length; + u8 ctrl; + u8 opcode; +} __packed; + +struct sky2_status_le { + __le32 status; /* also checksum */ + __le16 length; /* also vlan tag */ + u8 css; + u8 opcode; +} __packed; + +struct tx_ring_info { + struct sk_buff *skb; + unsigned long flags; +#define TX_MAP_SINGLE 0x0001 +#define TX_MAP_PAGE 0x0002 + DEFINE_DMA_UNMAP_ADDR(mapaddr); + DEFINE_DMA_UNMAP_LEN(maplen); +}; + +struct rx_ring_info { + struct sk_buff *skb; + dma_addr_t data_addr; + DEFINE_DMA_UNMAP_LEN(data_size); + dma_addr_t frag_addr[ETH_JUMBO_MTU >> PAGE_SHIFT ?: 1]; +}; + +enum flow_control { + FC_NONE = 0, + FC_TX = 1, + FC_RX = 2, + FC_BOTH = 3, +}; + +struct sky2_stats { + struct u64_stats_sync syncp; + u64 packets; + u64 bytes; +}; + +struct sky2_port { + struct sky2_hw *hw; + struct net_device *netdev; + unsigned port; + u32 msg_enable; + spinlock_t phy_lock; + + struct tx_ring_info *tx_ring; + struct sky2_tx_le *tx_le; + struct sky2_stats tx_stats; + + u16 tx_ring_size; + u16 tx_cons; /* next le to check */ + u16 tx_prod; /* next le to use */ + u16 tx_next; /* debug only */ + + u16 tx_pending; + u16 tx_last_mss; + u32 tx_last_upper; + u32 tx_tcpsum; + + struct rx_ring_info *rx_ring ____cacheline_aligned_in_smp; + struct sky2_rx_le *rx_le; + struct sky2_stats rx_stats; + + u16 rx_next; /* next re to check */ + u16 rx_put; /* next le index to use */ + u16 rx_pending; + u16 rx_data_size; + u16 rx_nfrags; + + unsigned long last_rx; + struct { + unsigned long last; + u32 mac_rp; + u8 mac_lev; + u8 fifo_rp; + u8 fifo_lev; + } check; + + dma_addr_t rx_le_map; + dma_addr_t tx_le_map; + + u16 advertising; /* ADVERTISED_ bits */ + u16 speed; /* SPEED_1000, SPEED_100, ... */ + u8 wol; /* WAKE_ bits */ + u8 duplex; /* DUPLEX_HALF, DUPLEX_FULL */ + u16 flags; +#define SKY2_FLAG_AUTO_SPEED 0x0002 +#define SKY2_FLAG_AUTO_PAUSE 0x0004 + + enum flow_control flow_mode; + enum flow_control flow_status; + +#ifdef CONFIG_SKY2_DEBUG + struct dentry *debugfs; +#endif +}; + +struct sky2_hw { + void __iomem *regs; + struct pci_dev *pdev; + struct napi_struct napi; + struct net_device *dev[2]; + unsigned long flags; +#define SKY2_HW_USE_MSI 0x00000001 +#define SKY2_HW_FIBRE_PHY 0x00000002 +#define SKY2_HW_GIGABIT 0x00000004 +#define SKY2_HW_NEWER_PHY 0x00000008 +#define SKY2_HW_RAM_BUFFER 0x00000010 +#define SKY2_HW_NEW_LE 0x00000020 /* new LSOv2 format */ +#define SKY2_HW_AUTO_TX_SUM 0x00000040 /* new IP decode for Tx */ +#define SKY2_HW_ADV_POWER_CTL 0x00000080 /* additional PHY power regs */ +#define SKY2_HW_RSS_BROKEN 0x00000100 +#define SKY2_HW_VLAN_BROKEN 0x00000200 +#define SKY2_HW_RSS_CHKSUM 0x00000400 /* RSS requires chksum */ +#define SKY2_HW_IRQ_SETUP 0x00000800 + + u8 chip_id; + u8 chip_rev; + u8 pmd_type; + u8 ports; + + struct sky2_status_le *st_le; + u32 st_size; + u32 st_idx; + dma_addr_t st_dma; + + struct timer_list watchdog_timer; + struct work_struct restart_work; + wait_queue_head_t msi_wait; + + char irq_name[]; +}; + +static inline int sky2_is_copper(const struct sky2_hw *hw) +{ + return !(hw->flags & SKY2_HW_FIBRE_PHY); +} + +/* Register accessor for memory mapped device */ +static inline u32 sky2_read32(const struct sky2_hw *hw, unsigned reg) +{ + return readl(hw->regs + reg); +} + +static inline u16 sky2_read16(const struct sky2_hw *hw, unsigned reg) +{ + return readw(hw->regs + reg); +} + +static inline u8 sky2_read8(const struct sky2_hw *hw, unsigned reg) +{ + return readb(hw->regs + reg); +} + +static inline void sky2_write32(const struct sky2_hw *hw, unsigned reg, u32 val) +{ + writel(val, hw->regs + reg); +} + +static inline void sky2_write16(const struct sky2_hw *hw, unsigned reg, u16 val) +{ + writew(val, hw->regs + reg); +} + +static inline void sky2_write8(const struct sky2_hw *hw, unsigned reg, u8 val) +{ + writeb(val, hw->regs + reg); +} + +/* Yukon PHY related registers */ +#define SK_GMAC_REG(port,reg) \ + (BASE_GMAC_1 + (port) * (BASE_GMAC_2-BASE_GMAC_1) + (reg)) +#define GM_PHY_RETRIES 100 + +static inline u16 gma_read16(const struct sky2_hw *hw, unsigned port, unsigned reg) +{ + return sky2_read16(hw, SK_GMAC_REG(port,reg)); +} + +static inline u32 gma_read32(struct sky2_hw *hw, unsigned port, unsigned reg) +{ + unsigned base = SK_GMAC_REG(port, reg); + return (u32) sky2_read16(hw, base) + | (u32) sky2_read16(hw, base+4) << 16; +} + +static inline u64 gma_read64(struct sky2_hw *hw, unsigned port, unsigned reg) +{ + unsigned base = SK_GMAC_REG(port, reg); + + return (u64) sky2_read16(hw, base) + | (u64) sky2_read16(hw, base+4) << 16 + | (u64) sky2_read16(hw, base+8) << 32 + | (u64) sky2_read16(hw, base+12) << 48; +} + +/* There is no way to atomically read32 bit values from PHY, so retry */ +static inline u32 get_stats32(struct sky2_hw *hw, unsigned port, unsigned reg) +{ + u32 val; + + do { + val = gma_read32(hw, port, reg); + } while (gma_read32(hw, port, reg) != val); + + return val; +} + +static inline u64 get_stats64(struct sky2_hw *hw, unsigned port, unsigned reg) +{ + u64 val; + + do { + val = gma_read64(hw, port, reg); + } while (gma_read64(hw, port, reg) != val); + + return val; +} + +static inline void gma_write16(const struct sky2_hw *hw, unsigned port, int r, u16 v) +{ + sky2_write16(hw, SK_GMAC_REG(port,r), v); +} + +static inline void gma_set_addr(struct sky2_hw *hw, unsigned port, unsigned reg, + const u8 *addr) +{ + gma_write16(hw, port, reg, (u16) addr[0] | ((u16) addr[1] << 8)); + gma_write16(hw, port, reg+4,(u16) addr[2] | ((u16) addr[3] << 8)); + gma_write16(hw, port, reg+8,(u16) addr[4] | ((u16) addr[5] << 8)); +} + +/* PCI config space access */ +static inline u32 sky2_pci_read32(const struct sky2_hw *hw, unsigned reg) +{ + return sky2_read32(hw, Y2_CFG_SPC + reg); +} + +static inline u16 sky2_pci_read16(const struct sky2_hw *hw, unsigned reg) +{ + return sky2_read16(hw, Y2_CFG_SPC + reg); +} + +static inline void sky2_pci_write32(struct sky2_hw *hw, unsigned reg, u32 val) +{ + sky2_write32(hw, Y2_CFG_SPC + reg, val); +} + +static inline void sky2_pci_write16(struct sky2_hw *hw, unsigned reg, u16 val) +{ + sky2_write16(hw, Y2_CFG_SPC + reg, val); +} +#endif |