diff options
Diffstat (limited to 'drivers/net/ethernet/mediatek/mtk_eth_soc.h')
| -rw-r--r-- | drivers/net/ethernet/mediatek/mtk_eth_soc.h | 1246 |
1 files changed, 1246 insertions, 0 deletions
diff --git a/drivers/net/ethernet/mediatek/mtk_eth_soc.h b/drivers/net/ethernet/mediatek/mtk_eth_soc.h new file mode 100644 index 000000000..dafa9a0ba --- /dev/null +++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.h @@ -0,0 +1,1246 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * + * Copyright (C) 2009-2016 John Crispin <blogic@openwrt.org> + * Copyright (C) 2009-2016 Felix Fietkau <nbd@openwrt.org> + * Copyright (C) 2013-2016 Michael Lee <igvtee@gmail.com> + */ + +#ifndef MTK_ETH_H +#define MTK_ETH_H + +#include <linux/dma-mapping.h> +#include <linux/netdevice.h> +#include <linux/of_net.h> +#include <linux/u64_stats_sync.h> +#include <linux/refcount.h> +#include <linux/phylink.h> +#include <linux/rhashtable.h> +#include <linux/dim.h> +#include <linux/bitfield.h> +#include <net/page_pool.h> +#include <linux/bpf_trace.h> +#include "mtk_ppe.h" + +#define MTK_QDMA_PAGE_SIZE 2048 +#define MTK_MAX_RX_LENGTH 1536 +#define MTK_MAX_RX_LENGTH_2K 2048 +#define MTK_TX_DMA_BUF_LEN 0x3fff +#define MTK_TX_DMA_BUF_LEN_V2 0xffff +#define MTK_DMA_SIZE 512 +#define MTK_MAC_COUNT 2 +#define MTK_RX_ETH_HLEN (ETH_HLEN + ETH_FCS_LEN) +#define MTK_RX_HLEN (NET_SKB_PAD + MTK_RX_ETH_HLEN + NET_IP_ALIGN) +#define MTK_DMA_DUMMY_DESC 0xffffffff +#define MTK_DEFAULT_MSG_ENABLE (NETIF_MSG_DRV | \ + NETIF_MSG_PROBE | \ + NETIF_MSG_LINK | \ + NETIF_MSG_TIMER | \ + NETIF_MSG_IFDOWN | \ + NETIF_MSG_IFUP | \ + NETIF_MSG_RX_ERR | \ + NETIF_MSG_TX_ERR) +#define MTK_HW_FEATURES (NETIF_F_IP_CSUM | \ + NETIF_F_RXCSUM | \ + NETIF_F_HW_VLAN_CTAG_TX | \ + NETIF_F_HW_VLAN_CTAG_RX | \ + NETIF_F_SG | NETIF_F_TSO | \ + NETIF_F_TSO6 | \ + NETIF_F_IPV6_CSUM |\ + NETIF_F_HW_TC) +#define MTK_HW_FEATURES_MT7628 (NETIF_F_SG | NETIF_F_RXCSUM) +#define NEXT_DESP_IDX(X, Y) (((X) + 1) & ((Y) - 1)) + +#define MTK_PP_HEADROOM XDP_PACKET_HEADROOM +#define MTK_PP_PAD (MTK_PP_HEADROOM + \ + SKB_DATA_ALIGN(sizeof(struct skb_shared_info))) +#define MTK_PP_MAX_BUF_SIZE (PAGE_SIZE - MTK_PP_PAD) + +#define MTK_QRX_OFFSET 0x10 + +#define MTK_MAX_RX_RING_NUM 4 +#define MTK_HW_LRO_DMA_SIZE 8 + +#define MTK_MAX_LRO_RX_LENGTH (4096 * 3) +#define MTK_MAX_LRO_IP_CNT 2 +#define MTK_HW_LRO_TIMER_UNIT 1 /* 20 us */ +#define MTK_HW_LRO_REFRESH_TIME 50000 /* 1 sec. */ +#define MTK_HW_LRO_AGG_TIME 10 /* 200us */ +#define MTK_HW_LRO_AGE_TIME 50 /* 1ms */ +#define MTK_HW_LRO_MAX_AGG_CNT 64 +#define MTK_HW_LRO_BW_THRE 3000 +#define MTK_HW_LRO_REPLACE_DELTA 1000 +#define MTK_HW_LRO_SDL_REMAIN_ROOM 1522 + +/* Frame Engine Global Reset Register */ +#define MTK_RST_GL 0x04 +#define RST_GL_PSE BIT(0) + +/* Frame Engine Interrupt Status Register */ +#define MTK_INT_STATUS2 0x08 +#define MTK_GDM1_AF BIT(28) +#define MTK_GDM2_AF BIT(29) + +/* PDMA HW LRO Alter Flow Timer Register */ +#define MTK_PDMA_LRO_ALT_REFRESH_TIMER 0x1c + +/* Frame Engine Interrupt Grouping Register */ +#define MTK_FE_INT_GRP 0x20 + +/* CDMP Ingress Control Register */ +#define MTK_CDMQ_IG_CTRL 0x1400 +#define MTK_CDMQ_STAG_EN BIT(0) + +/* CDMP Ingress Control Register */ +#define MTK_CDMP_IG_CTRL 0x400 +#define MTK_CDMP_STAG_EN BIT(0) + +/* CDMP Exgress Control Register */ +#define MTK_CDMP_EG_CTRL 0x404 + +/* GDM Exgress Control Register */ +#define MTK_GDMA_FWD_CFG(x) (0x500 + (x * 0x1000)) +#define MTK_GDMA_SPECIAL_TAG BIT(24) +#define MTK_GDMA_ICS_EN BIT(22) +#define MTK_GDMA_TCS_EN BIT(21) +#define MTK_GDMA_UCS_EN BIT(20) +#define MTK_GDMA_TO_PDMA 0x0 +#define MTK_GDMA_DROP_ALL 0x7777 + +/* Unicast Filter MAC Address Register - Low */ +#define MTK_GDMA_MAC_ADRL(x) (0x508 + (x * 0x1000)) + +/* Unicast Filter MAC Address Register - High */ +#define MTK_GDMA_MAC_ADRH(x) (0x50C + (x * 0x1000)) + +/* FE global misc reg*/ +#define MTK_FE_GLO_MISC 0x124 + +/* PSE Free Queue Flow Control */ +#define PSE_FQFC_CFG1 0x100 +#define PSE_FQFC_CFG2 0x104 +#define PSE_DROP_CFG 0x108 +#define PSE_PPE0_DROP 0x110 + +/* PSE Input Queue Reservation Register*/ +#define PSE_IQ_REV(x) (0x140 + (((x) - 1) << 2)) + +/* PSE Output Queue Threshold Register*/ +#define PSE_OQ_TH(x) (0x160 + (((x) - 1) << 2)) + +/* GDM and CDM Threshold */ +#define MTK_GDM2_THRES 0x1530 +#define MTK_CDMW0_THRES 0x164c +#define MTK_CDMW1_THRES 0x1650 +#define MTK_CDME0_THRES 0x1654 +#define MTK_CDME1_THRES 0x1658 +#define MTK_CDMM_THRES 0x165c + +/* PDMA HW LRO Control Registers */ +#define MTK_PDMA_LRO_CTRL_DW0 0x980 +#define MTK_LRO_EN BIT(0) +#define MTK_L3_CKS_UPD_EN BIT(7) +#define MTK_L3_CKS_UPD_EN_V2 BIT(19) +#define MTK_LRO_ALT_PKT_CNT_MODE BIT(21) +#define MTK_LRO_RING_RELINQUISH_REQ (0x7 << 26) +#define MTK_LRO_RING_RELINQUISH_REQ_V2 (0xf << 24) +#define MTK_LRO_RING_RELINQUISH_DONE (0x7 << 29) +#define MTK_LRO_RING_RELINQUISH_DONE_V2 (0xf << 28) + +#define MTK_PDMA_LRO_CTRL_DW1 0x984 +#define MTK_PDMA_LRO_CTRL_DW2 0x988 +#define MTK_PDMA_LRO_CTRL_DW3 0x98c +#define MTK_ADMA_MODE BIT(15) +#define MTK_LRO_MIN_RXD_SDL (MTK_HW_LRO_SDL_REMAIN_ROOM << 16) + +#define MTK_RX_DMA_LRO_EN BIT(8) +#define MTK_MULTI_EN BIT(10) +#define MTK_PDMA_SIZE_8DWORDS (1 << 4) + +/* PDMA Global Configuration Register */ +#define MTK_PDMA_LRO_SDL 0x3000 +#define MTK_RX_CFG_SDL_OFFSET 16 + +/* PDMA Reset Index Register */ +#define MTK_PST_DRX_IDX0 BIT(16) +#define MTK_PST_DRX_IDX_CFG(x) (MTK_PST_DRX_IDX0 << (x)) + +/* PDMA Delay Interrupt Register */ +#define MTK_PDMA_DELAY_RX_MASK GENMASK(15, 0) +#define MTK_PDMA_DELAY_RX_EN BIT(15) +#define MTK_PDMA_DELAY_RX_PINT_SHIFT 8 +#define MTK_PDMA_DELAY_RX_PTIME_SHIFT 0 + +#define MTK_PDMA_DELAY_TX_MASK GENMASK(31, 16) +#define MTK_PDMA_DELAY_TX_EN BIT(31) +#define MTK_PDMA_DELAY_TX_PINT_SHIFT 24 +#define MTK_PDMA_DELAY_TX_PTIME_SHIFT 16 + +#define MTK_PDMA_DELAY_PINT_MASK 0x7f +#define MTK_PDMA_DELAY_PTIME_MASK 0xff + +/* PDMA HW LRO Alter Flow Delta Register */ +#define MTK_PDMA_LRO_ALT_SCORE_DELTA 0xa4c + +/* PDMA HW LRO IP Setting Registers */ +#define MTK_LRO_RX_RING0_DIP_DW0 0xb04 +#define MTK_LRO_DIP_DW0_CFG(x) (MTK_LRO_RX_RING0_DIP_DW0 + (x * 0x40)) +#define MTK_RING_MYIP_VLD BIT(9) + +/* PDMA HW LRO Ring Control Registers */ +#define MTK_LRO_RX_RING0_CTRL_DW1 0xb28 +#define MTK_LRO_RX_RING0_CTRL_DW2 0xb2c +#define MTK_LRO_RX_RING0_CTRL_DW3 0xb30 +#define MTK_LRO_CTRL_DW1_CFG(x) (MTK_LRO_RX_RING0_CTRL_DW1 + (x * 0x40)) +#define MTK_LRO_CTRL_DW2_CFG(x) (MTK_LRO_RX_RING0_CTRL_DW2 + (x * 0x40)) +#define MTK_LRO_CTRL_DW3_CFG(x) (MTK_LRO_RX_RING0_CTRL_DW3 + (x * 0x40)) +#define MTK_RING_AGE_TIME_L ((MTK_HW_LRO_AGE_TIME & 0x3ff) << 22) +#define MTK_RING_AGE_TIME_H ((MTK_HW_LRO_AGE_TIME >> 10) & 0x3f) +#define MTK_RING_AUTO_LERAN_MODE (3 << 6) +#define MTK_RING_VLD BIT(8) +#define MTK_RING_MAX_AGG_TIME ((MTK_HW_LRO_AGG_TIME & 0xffff) << 10) +#define MTK_RING_MAX_AGG_CNT_L ((MTK_HW_LRO_MAX_AGG_CNT & 0x3f) << 26) +#define MTK_RING_MAX_AGG_CNT_H ((MTK_HW_LRO_MAX_AGG_CNT >> 6) & 0x3) + +/* QDMA TX Queue Configuration Registers */ +#define QDMA_RES_THRES 4 + +/* QDMA Global Configuration Register */ +#define MTK_RX_2B_OFFSET BIT(31) +#define MTK_RX_BT_32DWORDS (3 << 11) +#define MTK_NDP_CO_PRO BIT(10) +#define MTK_TX_WB_DDONE BIT(6) +#define MTK_TX_BT_32DWORDS (3 << 4) +#define MTK_RX_DMA_BUSY BIT(3) +#define MTK_TX_DMA_BUSY BIT(1) +#define MTK_RX_DMA_EN BIT(2) +#define MTK_TX_DMA_EN BIT(0) +#define MTK_DMA_BUSY_TIMEOUT_US 1000000 + +/* QDMA V2 Global Configuration Register */ +#define MTK_CHK_DDONE_EN BIT(28) +#define MTK_DMAD_WR_WDONE BIT(26) +#define MTK_WCOMP_EN BIT(24) +#define MTK_RESV_BUF (0x40 << 16) +#define MTK_MUTLI_CNT (0x4 << 12) + +/* QDMA Flow Control Register */ +#define FC_THRES_DROP_MODE BIT(20) +#define FC_THRES_DROP_EN (7 << 16) +#define FC_THRES_MIN 0x4444 + +/* QDMA Interrupt Status Register */ +#define MTK_RX_DONE_DLY BIT(30) +#define MTK_TX_DONE_DLY BIT(28) +#define MTK_RX_DONE_INT3 BIT(19) +#define MTK_RX_DONE_INT2 BIT(18) +#define MTK_RX_DONE_INT1 BIT(17) +#define MTK_RX_DONE_INT0 BIT(16) +#define MTK_TX_DONE_INT3 BIT(3) +#define MTK_TX_DONE_INT2 BIT(2) +#define MTK_TX_DONE_INT1 BIT(1) +#define MTK_TX_DONE_INT0 BIT(0) +#define MTK_RX_DONE_INT MTK_RX_DONE_DLY +#define MTK_TX_DONE_INT MTK_TX_DONE_DLY + +#define MTK_RX_DONE_INT_V2 BIT(14) + +/* QDMA Interrupt grouping registers */ +#define MTK_RLS_DONE_INT BIT(0) + +#define MTK_STAT_OFFSET 0x40 + +/* QDMA TX NUM */ +#define MTK_QDMA_TX_NUM 16 +#define MTK_QDMA_TX_MASK (MTK_QDMA_TX_NUM - 1) +#define QID_BITS_V2(x) (((x) & 0x3f) << 16) +#define MTK_QDMA_GMAC2_QID 8 + +#define MTK_TX_DMA_BUF_SHIFT 8 + +/* QDMA V2 descriptor txd6 */ +#define TX_DMA_INS_VLAN_V2 BIT(16) +/* QDMA V2 descriptor txd5 */ +#define TX_DMA_CHKSUM_V2 (0x7 << 28) +#define TX_DMA_TSO_V2 BIT(31) + +/* QDMA V2 descriptor txd4 */ +#define TX_DMA_FPORT_SHIFT_V2 8 +#define TX_DMA_FPORT_MASK_V2 0xf +#define TX_DMA_SWC_V2 BIT(30) + +/* QDMA descriptor txd4 */ +#define TX_DMA_CHKSUM (0x7 << 29) +#define TX_DMA_TSO BIT(28) +#define TX_DMA_FPORT_SHIFT 25 +#define TX_DMA_FPORT_MASK 0x7 +#define TX_DMA_INS_VLAN BIT(16) + +/* QDMA descriptor txd3 */ +#define TX_DMA_OWNER_CPU BIT(31) +#define TX_DMA_LS0 BIT(30) +#define TX_DMA_PLEN0(x) (((x) & eth->soc->txrx.dma_max_len) << eth->soc->txrx.dma_len_offset) +#define TX_DMA_PLEN1(x) ((x) & eth->soc->txrx.dma_max_len) +#define TX_DMA_SWC BIT(14) + +/* PDMA on MT7628 */ +#define TX_DMA_DONE BIT(31) +#define TX_DMA_LS1 BIT(14) +#define TX_DMA_DESP2_DEF (TX_DMA_LS0 | TX_DMA_DONE) + +/* QDMA descriptor rxd2 */ +#define RX_DMA_DONE BIT(31) +#define RX_DMA_LSO BIT(30) +#define RX_DMA_PREP_PLEN0(x) (((x) & eth->soc->txrx.dma_max_len) << eth->soc->txrx.dma_len_offset) +#define RX_DMA_GET_PLEN0(x) (((x) >> eth->soc->txrx.dma_len_offset) & eth->soc->txrx.dma_max_len) +#define RX_DMA_VTAG BIT(15) + +/* QDMA descriptor rxd3 */ +#define RX_DMA_VID(x) ((x) & VLAN_VID_MASK) +#define RX_DMA_TCI(x) ((x) & (VLAN_PRIO_MASK | VLAN_VID_MASK)) +#define RX_DMA_VPID(x) (((x) >> 16) & 0xffff) + +/* QDMA descriptor rxd4 */ +#define MTK_RXD4_FOE_ENTRY GENMASK(13, 0) +#define MTK_RXD4_PPE_CPU_REASON GENMASK(18, 14) +#define MTK_RXD4_SRC_PORT GENMASK(21, 19) +#define MTK_RXD4_ALG GENMASK(31, 22) + +/* QDMA descriptor rxd4 */ +#define RX_DMA_L4_VALID BIT(24) +#define RX_DMA_L4_VALID_PDMA BIT(30) /* when PDMA is used */ +#define RX_DMA_SPECIAL_TAG BIT(22) + +/* PDMA descriptor rxd5 */ +#define MTK_RXD5_FOE_ENTRY GENMASK(14, 0) +#define MTK_RXD5_PPE_CPU_REASON GENMASK(22, 18) +#define MTK_RXD5_SRC_PORT GENMASK(29, 26) + +#define RX_DMA_GET_SPORT(x) (((x) >> 19) & 0x7) +#define RX_DMA_GET_SPORT_V2(x) (((x) >> 26) & 0xf) + +/* PDMA V2 descriptor rxd3 */ +#define RX_DMA_VTAG_V2 BIT(0) +#define RX_DMA_L4_VALID_V2 BIT(2) + +/* PHY Indirect Access Control registers */ +#define MTK_PHY_IAC 0x10004 +#define PHY_IAC_ACCESS BIT(31) +#define PHY_IAC_REG_MASK GENMASK(29, 25) +#define PHY_IAC_REG(x) FIELD_PREP(PHY_IAC_REG_MASK, (x)) +#define PHY_IAC_ADDR_MASK GENMASK(24, 20) +#define PHY_IAC_ADDR(x) FIELD_PREP(PHY_IAC_ADDR_MASK, (x)) +#define PHY_IAC_CMD_MASK GENMASK(19, 18) +#define PHY_IAC_CMD_C45_ADDR FIELD_PREP(PHY_IAC_CMD_MASK, 0) +#define PHY_IAC_CMD_WRITE FIELD_PREP(PHY_IAC_CMD_MASK, 1) +#define PHY_IAC_CMD_C22_READ FIELD_PREP(PHY_IAC_CMD_MASK, 2) +#define PHY_IAC_CMD_C45_READ FIELD_PREP(PHY_IAC_CMD_MASK, 3) +#define PHY_IAC_START_MASK GENMASK(17, 16) +#define PHY_IAC_START_C45 FIELD_PREP(PHY_IAC_START_MASK, 0) +#define PHY_IAC_START_C22 FIELD_PREP(PHY_IAC_START_MASK, 1) +#define PHY_IAC_DATA_MASK GENMASK(15, 0) +#define PHY_IAC_DATA(x) FIELD_PREP(PHY_IAC_DATA_MASK, (x)) +#define PHY_IAC_TIMEOUT HZ + +#define MTK_MAC_MISC 0x1000c +#define MTK_MUX_TO_ESW BIT(0) + +/* Mac control registers */ +#define MTK_MAC_MCR(x) (0x10100 + (x * 0x100)) +#define MAC_MCR_MAX_RX_MASK GENMASK(25, 24) +#define MAC_MCR_MAX_RX(_x) (MAC_MCR_MAX_RX_MASK & ((_x) << 24)) +#define MAC_MCR_MAX_RX_1518 0x0 +#define MAC_MCR_MAX_RX_1536 0x1 +#define MAC_MCR_MAX_RX_1552 0x2 +#define MAC_MCR_MAX_RX_2048 0x3 +#define MAC_MCR_IPG_CFG (BIT(18) | BIT(16)) +#define MAC_MCR_FORCE_MODE BIT(15) +#define MAC_MCR_TX_EN BIT(14) +#define MAC_MCR_RX_EN BIT(13) +#define MAC_MCR_RX_FIFO_CLR_DIS BIT(12) +#define MAC_MCR_BACKOFF_EN BIT(9) +#define MAC_MCR_BACKPR_EN BIT(8) +#define MAC_MCR_FORCE_RX_FC BIT(5) +#define MAC_MCR_FORCE_TX_FC BIT(4) +#define MAC_MCR_SPEED_1000 BIT(3) +#define MAC_MCR_SPEED_100 BIT(2) +#define MAC_MCR_FORCE_DPX BIT(1) +#define MAC_MCR_FORCE_LINK BIT(0) +#define MAC_MCR_FORCE_LINK_DOWN (MAC_MCR_FORCE_MODE) + +/* Mac status registers */ +#define MTK_MAC_MSR(x) (0x10108 + (x * 0x100)) +#define MAC_MSR_EEE1G BIT(7) +#define MAC_MSR_EEE100M BIT(6) +#define MAC_MSR_RX_FC BIT(5) +#define MAC_MSR_TX_FC BIT(4) +#define MAC_MSR_SPEED_1000 BIT(3) +#define MAC_MSR_SPEED_100 BIT(2) +#define MAC_MSR_SPEED_MASK (MAC_MSR_SPEED_1000 | MAC_MSR_SPEED_100) +#define MAC_MSR_DPX BIT(1) +#define MAC_MSR_LINK BIT(0) + +/* TRGMII RXC control register */ +#define TRGMII_RCK_CTRL 0x10300 +#define DQSI0(x) ((x << 0) & GENMASK(6, 0)) +#define DQSI1(x) ((x << 8) & GENMASK(14, 8)) +#define RXCTL_DMWTLAT(x) ((x << 16) & GENMASK(18, 16)) +#define RXC_RST BIT(31) +#define RXC_DQSISEL BIT(30) +#define RCK_CTRL_RGMII_1000 (RXC_DQSISEL | RXCTL_DMWTLAT(2) | DQSI1(16)) +#define RCK_CTRL_RGMII_10_100 RXCTL_DMWTLAT(2) + +#define NUM_TRGMII_CTRL 5 + +/* TRGMII RXC control register */ +#define TRGMII_TCK_CTRL 0x10340 +#define TXCTL_DMWTLAT(x) ((x << 16) & GENMASK(18, 16)) +#define TXC_INV BIT(30) +#define TCK_CTRL_RGMII_1000 TXCTL_DMWTLAT(2) +#define TCK_CTRL_RGMII_10_100 (TXC_INV | TXCTL_DMWTLAT(2)) + +/* TRGMII TX Drive Strength */ +#define TRGMII_TD_ODT(i) (0x10354 + 8 * (i)) +#define TD_DM_DRVP(x) ((x) & 0xf) +#define TD_DM_DRVN(x) (((x) & 0xf) << 4) + +/* TRGMII Interface mode register */ +#define INTF_MODE 0x10390 +#define TRGMII_INTF_DIS BIT(0) +#define TRGMII_MODE BIT(1) +#define TRGMII_CENTRAL_ALIGNED BIT(2) +#define INTF_MODE_RGMII_1000 (TRGMII_MODE | TRGMII_CENTRAL_ALIGNED) +#define INTF_MODE_RGMII_10_100 0 + +/* GPIO port control registers for GMAC 2*/ +#define GPIO_OD33_CTRL8 0x4c0 +#define GPIO_BIAS_CTRL 0xed0 +#define GPIO_DRV_SEL10 0xf00 + +/* ethernet subsystem chip id register */ +#define ETHSYS_CHIPID0_3 0x0 +#define ETHSYS_CHIPID4_7 0x4 +#define MT7623_ETH 7623 +#define MT7622_ETH 7622 +#define MT7621_ETH 7621 + +/* ethernet system control register */ +#define ETHSYS_SYSCFG 0x10 +#define SYSCFG_DRAM_TYPE_DDR2 BIT(4) + +/* ethernet subsystem config register */ +#define ETHSYS_SYSCFG0 0x14 +#define SYSCFG0_GE_MASK 0x3 +#define SYSCFG0_GE_MODE(x, y) (x << (12 + (y * 2))) +#define SYSCFG0_SGMII_MASK GENMASK(9, 8) +#define SYSCFG0_SGMII_GMAC1 ((2 << 8) & SYSCFG0_SGMII_MASK) +#define SYSCFG0_SGMII_GMAC2 ((3 << 8) & SYSCFG0_SGMII_MASK) +#define SYSCFG0_SGMII_GMAC1_V2 BIT(9) +#define SYSCFG0_SGMII_GMAC2_V2 BIT(8) + + +/* ethernet subsystem clock register */ +#define ETHSYS_CLKCFG0 0x2c +#define ETHSYS_TRGMII_CLK_SEL362_5 BIT(11) +#define ETHSYS_TRGMII_MT7621_MASK (BIT(5) | BIT(6)) +#define ETHSYS_TRGMII_MT7621_APLL BIT(6) +#define ETHSYS_TRGMII_MT7621_DDR_PLL BIT(5) + +/* ethernet reset control register */ +#define ETHSYS_RSTCTRL 0x34 +#define RSTCTRL_FE BIT(6) +#define RSTCTRL_PPE0 BIT(31) +#define RSTCTRL_PPE0_V2 BIT(30) +#define RSTCTRL_PPE1 BIT(31) +#define RSTCTRL_ETH BIT(23) + +/* ethernet reset check idle register */ +#define ETHSYS_FE_RST_CHK_IDLE_EN 0x28 + +/* ethernet dma channel agent map */ +#define ETHSYS_DMA_AG_MAP 0x408 +#define ETHSYS_DMA_AG_MAP_PDMA BIT(0) +#define ETHSYS_DMA_AG_MAP_QDMA BIT(1) +#define ETHSYS_DMA_AG_MAP_PPE BIT(2) + +/* SGMII subsystem config registers */ +/* Register to auto-negotiation restart */ +#define SGMSYS_PCS_CONTROL_1 0x0 +#define SGMII_AN_RESTART BIT(9) +#define SGMII_ISOLATE BIT(10) +#define SGMII_AN_ENABLE BIT(12) +#define SGMII_LINK_STATYS BIT(18) +#define SGMII_AN_ABILITY BIT(19) +#define SGMII_AN_COMPLETE BIT(21) +#define SGMII_PCS_FAULT BIT(23) +#define SGMII_AN_EXPANSION_CLR BIT(30) + +/* Register to programmable link timer, the unit in 2 * 8ns */ +#define SGMSYS_PCS_LINK_TIMER 0x18 +#define SGMII_LINK_TIMER_DEFAULT (0x186a0 & GENMASK(19, 0)) + +/* Register to control remote fault */ +#define SGMSYS_SGMII_MODE 0x20 +#define SGMII_IF_MODE_BIT0 BIT(0) +#define SGMII_SPEED_DUPLEX_AN BIT(1) +#define SGMII_SPEED_MASK GENMASK(3, 2) +#define SGMII_SPEED_10 FIELD_PREP(SGMII_SPEED_MASK, 0) +#define SGMII_SPEED_100 FIELD_PREP(SGMII_SPEED_MASK, 1) +#define SGMII_SPEED_1000 FIELD_PREP(SGMII_SPEED_MASK, 2) +#define SGMII_DUPLEX_FULL BIT(4) +#define SGMII_IF_MODE_BIT5 BIT(5) +#define SGMII_REMOTE_FAULT_DIS BIT(8) +#define SGMII_CODE_SYNC_SET_VAL BIT(9) +#define SGMII_CODE_SYNC_SET_EN BIT(10) +#define SGMII_SEND_AN_ERROR_EN BIT(11) +#define SGMII_IF_MODE_MASK GENMASK(5, 1) + +/* Register to set SGMII speed, ANA RG_ Control Signals III*/ +#define SGMSYS_ANA_RG_CS3 0x2028 +#define RG_PHY_SPEED_MASK (BIT(2) | BIT(3)) +#define RG_PHY_SPEED_1_25G 0x0 +#define RG_PHY_SPEED_3_125G BIT(2) + +/* Register to power up QPHY */ +#define SGMSYS_QPHY_PWR_STATE_CTRL 0xe8 +#define SGMII_PHYA_PWD BIT(4) + +/* Infrasys subsystem config registers */ +#define INFRA_MISC2 0x70c +#define CO_QPHY_SEL BIT(0) +#define GEPHY_MAC_SEL BIT(1) + +/* MT7628/88 specific stuff */ +#define MT7628_PDMA_OFFSET 0x0800 +#define MT7628_SDM_OFFSET 0x0c00 + +#define MT7628_TX_BASE_PTR0 (MT7628_PDMA_OFFSET + 0x00) +#define MT7628_TX_MAX_CNT0 (MT7628_PDMA_OFFSET + 0x04) +#define MT7628_TX_CTX_IDX0 (MT7628_PDMA_OFFSET + 0x08) +#define MT7628_TX_DTX_IDX0 (MT7628_PDMA_OFFSET + 0x0c) +#define MT7628_PST_DTX_IDX0 BIT(0) + +#define MT7628_SDM_MAC_ADRL (MT7628_SDM_OFFSET + 0x0c) +#define MT7628_SDM_MAC_ADRH (MT7628_SDM_OFFSET + 0x10) + +/* Counter / stat register */ +#define MT7628_SDM_TPCNT (MT7628_SDM_OFFSET + 0x100) +#define MT7628_SDM_TBCNT (MT7628_SDM_OFFSET + 0x104) +#define MT7628_SDM_RPCNT (MT7628_SDM_OFFSET + 0x108) +#define MT7628_SDM_RBCNT (MT7628_SDM_OFFSET + 0x10c) +#define MT7628_SDM_CS_ERR (MT7628_SDM_OFFSET + 0x110) + +struct mtk_rx_dma { + unsigned int rxd1; + unsigned int rxd2; + unsigned int rxd3; + unsigned int rxd4; +} __packed __aligned(4); + +struct mtk_rx_dma_v2 { + unsigned int rxd1; + unsigned int rxd2; + unsigned int rxd3; + unsigned int rxd4; + unsigned int rxd5; + unsigned int rxd6; + unsigned int rxd7; + unsigned int rxd8; +} __packed __aligned(4); + +struct mtk_tx_dma { + unsigned int txd1; + unsigned int txd2; + unsigned int txd3; + unsigned int txd4; +} __packed __aligned(4); + +struct mtk_tx_dma_v2 { + unsigned int txd1; + unsigned int txd2; + unsigned int txd3; + unsigned int txd4; + unsigned int txd5; + unsigned int txd6; + unsigned int txd7; + unsigned int txd8; +} __packed __aligned(4); + +struct mtk_eth; +struct mtk_mac; + +struct mtk_xdp_stats { + u64 rx_xdp_redirect; + u64 rx_xdp_pass; + u64 rx_xdp_drop; + u64 rx_xdp_tx; + u64 rx_xdp_tx_errors; + u64 tx_xdp_xmit; + u64 tx_xdp_xmit_errors; +}; + +/* struct mtk_hw_stats - the structure that holds the traffic statistics. + * @stats_lock: make sure that stats operations are atomic + * @reg_offset: the status register offset of the SoC + * @syncp: the refcount + * + * All of the supported SoCs have hardware counters for traffic statistics. + * Whenever the status IRQ triggers we can read the latest stats from these + * counters and store them in this struct. + */ +struct mtk_hw_stats { + u64 tx_bytes; + u64 tx_packets; + u64 tx_skip; + u64 tx_collisions; + u64 rx_bytes; + u64 rx_packets; + u64 rx_overflow; + u64 rx_fcs_errors; + u64 rx_short_errors; + u64 rx_long_errors; + u64 rx_checksum_errors; + u64 rx_flow_control_packets; + + struct mtk_xdp_stats xdp_stats; + + spinlock_t stats_lock; + u32 reg_offset; + struct u64_stats_sync syncp; +}; + +enum mtk_tx_flags { + /* PDMA descriptor can point at 1-2 segments. This enum allows us to + * track how memory was allocated so that it can be freed properly. + */ + MTK_TX_FLAGS_SINGLE0 = 0x01, + MTK_TX_FLAGS_PAGE0 = 0x02, + + /* MTK_TX_FLAGS_FPORTx allows tracking which port the transmitted + * SKB out instead of looking up through hardware TX descriptor. + */ + MTK_TX_FLAGS_FPORT0 = 0x04, + MTK_TX_FLAGS_FPORT1 = 0x08, +}; + +/* This enum allows us to identify how the clock is defined on the array of the + * clock in the order + */ +enum mtk_clks_map { + MTK_CLK_ETHIF, + MTK_CLK_SGMIITOP, + MTK_CLK_ESW, + MTK_CLK_GP0, + MTK_CLK_GP1, + MTK_CLK_GP2, + MTK_CLK_FE, + MTK_CLK_TRGPLL, + MTK_CLK_SGMII_TX_250M, + MTK_CLK_SGMII_RX_250M, + MTK_CLK_SGMII_CDR_REF, + MTK_CLK_SGMII_CDR_FB, + MTK_CLK_SGMII2_TX_250M, + MTK_CLK_SGMII2_RX_250M, + MTK_CLK_SGMII2_CDR_REF, + MTK_CLK_SGMII2_CDR_FB, + MTK_CLK_SGMII_CK, + MTK_CLK_ETH2PLL, + MTK_CLK_WOCPU0, + MTK_CLK_WOCPU1, + MTK_CLK_NETSYS0, + MTK_CLK_NETSYS1, + MTK_CLK_MAX +}; + +#define MT7623_CLKS_BITMAP (BIT(MTK_CLK_ETHIF) | BIT(MTK_CLK_ESW) | \ + BIT(MTK_CLK_GP1) | BIT(MTK_CLK_GP2) | \ + BIT(MTK_CLK_TRGPLL)) +#define MT7622_CLKS_BITMAP (BIT(MTK_CLK_ETHIF) | BIT(MTK_CLK_ESW) | \ + BIT(MTK_CLK_GP0) | BIT(MTK_CLK_GP1) | \ + BIT(MTK_CLK_GP2) | \ + BIT(MTK_CLK_SGMII_TX_250M) | \ + BIT(MTK_CLK_SGMII_RX_250M) | \ + BIT(MTK_CLK_SGMII_CDR_REF) | \ + BIT(MTK_CLK_SGMII_CDR_FB) | \ + BIT(MTK_CLK_SGMII_CK) | \ + BIT(MTK_CLK_ETH2PLL)) +#define MT7621_CLKS_BITMAP (0) +#define MT7628_CLKS_BITMAP (0) +#define MT7629_CLKS_BITMAP (BIT(MTK_CLK_ETHIF) | BIT(MTK_CLK_ESW) | \ + BIT(MTK_CLK_GP0) | BIT(MTK_CLK_GP1) | \ + BIT(MTK_CLK_GP2) | BIT(MTK_CLK_FE) | \ + BIT(MTK_CLK_SGMII_TX_250M) | \ + BIT(MTK_CLK_SGMII_RX_250M) | \ + BIT(MTK_CLK_SGMII_CDR_REF) | \ + BIT(MTK_CLK_SGMII_CDR_FB) | \ + BIT(MTK_CLK_SGMII2_TX_250M) | \ + BIT(MTK_CLK_SGMII2_RX_250M) | \ + BIT(MTK_CLK_SGMII2_CDR_REF) | \ + BIT(MTK_CLK_SGMII2_CDR_FB) | \ + BIT(MTK_CLK_SGMII_CK) | \ + BIT(MTK_CLK_ETH2PLL) | BIT(MTK_CLK_SGMIITOP)) +#define MT7986_CLKS_BITMAP (BIT(MTK_CLK_FE) | BIT(MTK_CLK_GP2) | BIT(MTK_CLK_GP1) | \ + BIT(MTK_CLK_WOCPU1) | BIT(MTK_CLK_WOCPU0) | \ + BIT(MTK_CLK_SGMII_TX_250M) | \ + BIT(MTK_CLK_SGMII_RX_250M) | \ + BIT(MTK_CLK_SGMII_CDR_REF) | \ + BIT(MTK_CLK_SGMII_CDR_FB) | \ + BIT(MTK_CLK_SGMII2_TX_250M) | \ + BIT(MTK_CLK_SGMII2_RX_250M) | \ + BIT(MTK_CLK_SGMII2_CDR_REF) | \ + BIT(MTK_CLK_SGMII2_CDR_FB)) + +enum mtk_dev_state { + MTK_HW_INIT, + MTK_RESETTING +}; + +enum mtk_tx_buf_type { + MTK_TYPE_SKB, + MTK_TYPE_XDP_TX, + MTK_TYPE_XDP_NDO, +}; + +/* struct mtk_tx_buf - This struct holds the pointers to the memory pointed at + * by the TX descriptor s + * @skb: The SKB pointer of the packet being sent + * @dma_addr0: The base addr of the first segment + * @dma_len0: The length of the first segment + * @dma_addr1: The base addr of the second segment + * @dma_len1: The length of the second segment + */ +struct mtk_tx_buf { + enum mtk_tx_buf_type type; + void *data; + + u32 flags; + DEFINE_DMA_UNMAP_ADDR(dma_addr0); + DEFINE_DMA_UNMAP_LEN(dma_len0); + DEFINE_DMA_UNMAP_ADDR(dma_addr1); + DEFINE_DMA_UNMAP_LEN(dma_len1); +}; + +/* struct mtk_tx_ring - This struct holds info describing a TX ring + * @dma: The descriptor ring + * @buf: The memory pointed at by the ring + * @phys: The physical addr of tx_buf + * @next_free: Pointer to the next free descriptor + * @last_free: Pointer to the last free descriptor + * @last_free_ptr: Hardware pointer value of the last free descriptor + * @thresh: The threshold of minimum amount of free descriptors + * @free_count: QDMA uses a linked list. Track how many free descriptors + * are present + */ +struct mtk_tx_ring { + void *dma; + struct mtk_tx_buf *buf; + dma_addr_t phys; + struct mtk_tx_dma *next_free; + struct mtk_tx_dma *last_free; + u32 last_free_ptr; + u16 thresh; + atomic_t free_count; + int dma_size; + struct mtk_tx_dma *dma_pdma; /* For MT7628/88 PDMA handling */ + dma_addr_t phys_pdma; + int cpu_idx; +}; + +/* PDMA rx ring mode */ +enum mtk_rx_flags { + MTK_RX_FLAGS_NORMAL = 0, + MTK_RX_FLAGS_HWLRO, + MTK_RX_FLAGS_QDMA, +}; + +/* struct mtk_rx_ring - This struct holds info describing a RX ring + * @dma: The descriptor ring + * @data: The memory pointed at by the ring + * @phys: The physical addr of rx_buf + * @frag_size: How big can each fragment be + * @buf_size: The size of each packet buffer + * @calc_idx: The current head of ring + */ +struct mtk_rx_ring { + void *dma; + u8 **data; + dma_addr_t phys; + u16 frag_size; + u16 buf_size; + u16 dma_size; + bool calc_idx_update; + u16 calc_idx; + u32 crx_idx_reg; + /* page_pool */ + struct page_pool *page_pool; + struct xdp_rxq_info xdp_q; +}; + +enum mkt_eth_capabilities { + MTK_RGMII_BIT = 0, + MTK_TRGMII_BIT, + MTK_SGMII_BIT, + MTK_ESW_BIT, + MTK_GEPHY_BIT, + MTK_MUX_BIT, + MTK_INFRA_BIT, + MTK_SHARED_SGMII_BIT, + MTK_HWLRO_BIT, + MTK_SHARED_INT_BIT, + MTK_TRGMII_MT7621_CLK_BIT, + MTK_QDMA_BIT, + MTK_NETSYS_V2_BIT, + MTK_SOC_MT7628_BIT, + MTK_RSTCTRL_PPE1_BIT, + + /* MUX BITS*/ + MTK_ETH_MUX_GDM1_TO_GMAC1_ESW_BIT, + MTK_ETH_MUX_GMAC2_GMAC0_TO_GEPHY_BIT, + MTK_ETH_MUX_U3_GMAC2_TO_QPHY_BIT, + MTK_ETH_MUX_GMAC1_GMAC2_TO_SGMII_RGMII_BIT, + MTK_ETH_MUX_GMAC12_TO_GEPHY_SGMII_BIT, + + /* PATH BITS */ + MTK_ETH_PATH_GMAC1_RGMII_BIT, + MTK_ETH_PATH_GMAC1_TRGMII_BIT, + MTK_ETH_PATH_GMAC1_SGMII_BIT, + MTK_ETH_PATH_GMAC2_RGMII_BIT, + MTK_ETH_PATH_GMAC2_SGMII_BIT, + MTK_ETH_PATH_GMAC2_GEPHY_BIT, + MTK_ETH_PATH_GDM1_ESW_BIT, +}; + +/* Supported hardware group on SoCs */ +#define MTK_RGMII BIT(MTK_RGMII_BIT) +#define MTK_TRGMII BIT(MTK_TRGMII_BIT) +#define MTK_SGMII BIT(MTK_SGMII_BIT) +#define MTK_ESW BIT(MTK_ESW_BIT) +#define MTK_GEPHY BIT(MTK_GEPHY_BIT) +#define MTK_MUX BIT(MTK_MUX_BIT) +#define MTK_INFRA BIT(MTK_INFRA_BIT) +#define MTK_SHARED_SGMII BIT(MTK_SHARED_SGMII_BIT) +#define MTK_HWLRO BIT(MTK_HWLRO_BIT) +#define MTK_SHARED_INT BIT(MTK_SHARED_INT_BIT) +#define MTK_TRGMII_MT7621_CLK BIT(MTK_TRGMII_MT7621_CLK_BIT) +#define MTK_QDMA BIT(MTK_QDMA_BIT) +#define MTK_NETSYS_V2 BIT(MTK_NETSYS_V2_BIT) +#define MTK_SOC_MT7628 BIT(MTK_SOC_MT7628_BIT) +#define MTK_RSTCTRL_PPE1 BIT(MTK_RSTCTRL_PPE1_BIT) + +#define MTK_ETH_MUX_GDM1_TO_GMAC1_ESW \ + BIT(MTK_ETH_MUX_GDM1_TO_GMAC1_ESW_BIT) +#define MTK_ETH_MUX_GMAC2_GMAC0_TO_GEPHY \ + BIT(MTK_ETH_MUX_GMAC2_GMAC0_TO_GEPHY_BIT) +#define MTK_ETH_MUX_U3_GMAC2_TO_QPHY \ + BIT(MTK_ETH_MUX_U3_GMAC2_TO_QPHY_BIT) +#define MTK_ETH_MUX_GMAC1_GMAC2_TO_SGMII_RGMII \ + BIT(MTK_ETH_MUX_GMAC1_GMAC2_TO_SGMII_RGMII_BIT) +#define MTK_ETH_MUX_GMAC12_TO_GEPHY_SGMII \ + BIT(MTK_ETH_MUX_GMAC12_TO_GEPHY_SGMII_BIT) + +/* Supported path present on SoCs */ +#define MTK_ETH_PATH_GMAC1_RGMII BIT(MTK_ETH_PATH_GMAC1_RGMII_BIT) +#define MTK_ETH_PATH_GMAC1_TRGMII BIT(MTK_ETH_PATH_GMAC1_TRGMII_BIT) +#define MTK_ETH_PATH_GMAC1_SGMII BIT(MTK_ETH_PATH_GMAC1_SGMII_BIT) +#define MTK_ETH_PATH_GMAC2_RGMII BIT(MTK_ETH_PATH_GMAC2_RGMII_BIT) +#define MTK_ETH_PATH_GMAC2_SGMII BIT(MTK_ETH_PATH_GMAC2_SGMII_BIT) +#define MTK_ETH_PATH_GMAC2_GEPHY BIT(MTK_ETH_PATH_GMAC2_GEPHY_BIT) +#define MTK_ETH_PATH_GDM1_ESW BIT(MTK_ETH_PATH_GDM1_ESW_BIT) + +#define MTK_GMAC1_RGMII (MTK_ETH_PATH_GMAC1_RGMII | MTK_RGMII) +#define MTK_GMAC1_TRGMII (MTK_ETH_PATH_GMAC1_TRGMII | MTK_TRGMII) +#define MTK_GMAC1_SGMII (MTK_ETH_PATH_GMAC1_SGMII | MTK_SGMII) +#define MTK_GMAC2_RGMII (MTK_ETH_PATH_GMAC2_RGMII | MTK_RGMII) +#define MTK_GMAC2_SGMII (MTK_ETH_PATH_GMAC2_SGMII | MTK_SGMII) +#define MTK_GMAC2_GEPHY (MTK_ETH_PATH_GMAC2_GEPHY | MTK_GEPHY) +#define MTK_GDM1_ESW (MTK_ETH_PATH_GDM1_ESW | MTK_ESW) + +/* MUXes present on SoCs */ +/* 0: GDM1 -> GMAC1, 1: GDM1 -> ESW */ +#define MTK_MUX_GDM1_TO_GMAC1_ESW (MTK_ETH_MUX_GDM1_TO_GMAC1_ESW | MTK_MUX) + +/* 0: GMAC2 -> GEPHY, 1: GMAC0 -> GePHY */ +#define MTK_MUX_GMAC2_GMAC0_TO_GEPHY \ + (MTK_ETH_MUX_GMAC2_GMAC0_TO_GEPHY | MTK_MUX | MTK_INFRA) + +/* 0: U3 -> QPHY, 1: GMAC2 -> QPHY */ +#define MTK_MUX_U3_GMAC2_TO_QPHY \ + (MTK_ETH_MUX_U3_GMAC2_TO_QPHY | MTK_MUX | MTK_INFRA) + +/* 2: GMAC1 -> SGMII, 3: GMAC2 -> SGMII */ +#define MTK_MUX_GMAC1_GMAC2_TO_SGMII_RGMII \ + (MTK_ETH_MUX_GMAC1_GMAC2_TO_SGMII_RGMII | MTK_MUX | \ + MTK_SHARED_SGMII) + +/* 0: GMACx -> GEPHY, 1: GMACx -> SGMII where x is 1 or 2 */ +#define MTK_MUX_GMAC12_TO_GEPHY_SGMII \ + (MTK_ETH_MUX_GMAC12_TO_GEPHY_SGMII | MTK_MUX) + +#define MTK_HAS_CAPS(caps, _x) (((caps) & (_x)) == (_x)) + +#define MT7621_CAPS (MTK_GMAC1_RGMII | MTK_GMAC1_TRGMII | \ + MTK_GMAC2_RGMII | MTK_SHARED_INT | \ + MTK_TRGMII_MT7621_CLK | MTK_QDMA) + +#define MT7622_CAPS (MTK_GMAC1_RGMII | MTK_GMAC1_SGMII | MTK_GMAC2_RGMII | \ + MTK_GMAC2_SGMII | MTK_GDM1_ESW | \ + MTK_MUX_GDM1_TO_GMAC1_ESW | \ + MTK_MUX_GMAC1_GMAC2_TO_SGMII_RGMII | MTK_QDMA) + +#define MT7623_CAPS (MTK_GMAC1_RGMII | MTK_GMAC1_TRGMII | MTK_GMAC2_RGMII | \ + MTK_QDMA) + +#define MT7628_CAPS (MTK_SHARED_INT | MTK_SOC_MT7628) + +#define MT7629_CAPS (MTK_GMAC1_SGMII | MTK_GMAC2_SGMII | MTK_GMAC2_GEPHY | \ + MTK_GDM1_ESW | MTK_MUX_GDM1_TO_GMAC1_ESW | \ + MTK_MUX_GMAC2_GMAC0_TO_GEPHY | \ + MTK_MUX_U3_GMAC2_TO_QPHY | \ + MTK_MUX_GMAC12_TO_GEPHY_SGMII | MTK_QDMA) + +#define MT7986_CAPS (MTK_GMAC1_SGMII | MTK_GMAC2_SGMII | \ + MTK_MUX_GMAC12_TO_GEPHY_SGMII | MTK_QDMA | \ + MTK_NETSYS_V2 | MTK_RSTCTRL_PPE1) + +struct mtk_tx_dma_desc_info { + dma_addr_t addr; + u32 size; + u16 vlan_tci; + u16 qid; + u8 gso:1; + u8 csum:1; + u8 vlan:1; + u8 first:1; + u8 last:1; +}; + +struct mtk_reg_map { + u32 tx_irq_mask; + u32 tx_irq_status; + struct { + u32 rx_ptr; /* rx base pointer */ + u32 rx_cnt_cfg; /* rx max count configuration */ + u32 pcrx_ptr; /* rx cpu pointer */ + u32 glo_cfg; /* global configuration */ + u32 rst_idx; /* reset index */ + u32 delay_irq; /* delay interrupt */ + u32 irq_status; /* interrupt status */ + u32 irq_mask; /* interrupt mask */ + u32 int_grp; + } pdma; + struct { + u32 qtx_cfg; /* tx queue configuration */ + u32 rx_ptr; /* rx base pointer */ + u32 rx_cnt_cfg; /* rx max count configuration */ + u32 qcrx_ptr; /* rx cpu pointer */ + u32 glo_cfg; /* global configuration */ + u32 rst_idx; /* reset index */ + u32 delay_irq; /* delay interrupt */ + u32 fc_th; /* flow control */ + u32 int_grp; + u32 hred; /* interrupt mask */ + u32 ctx_ptr; /* tx acquire cpu pointer */ + u32 dtx_ptr; /* tx acquire dma pointer */ + u32 crx_ptr; /* tx release cpu pointer */ + u32 drx_ptr; /* tx release dma pointer */ + u32 fq_head; /* fq head pointer */ + u32 fq_tail; /* fq tail pointer */ + u32 fq_count; /* fq free page count */ + u32 fq_blen; /* fq free page buffer length */ + } qdma; + u32 gdm1_cnt; + u32 gdma_to_ppe; + u32 ppe_base; + u32 wdma_base[2]; +}; + +/* struct mtk_eth_data - This is the structure holding all differences + * among various plaforms + * @reg_map Soc register map. + * @ana_rgc3: The offset for register ANA_RGC3 related to + * sgmiisys syscon + * @caps Flags shown the extra capability for the SoC + * @hw_features Flags shown HW features + * @required_clks Flags shown the bitmap for required clocks on + * the target SoC + * @required_pctl A bool value to show whether the SoC requires + * the extra setup for those pins used by GMAC. + * @hash_offset Flow table hash offset. + * @foe_entry_size Foe table entry size. + * @txd_size Tx DMA descriptor size. + * @rxd_size Rx DMA descriptor size. + * @rx_irq_done_mask Rx irq done register mask. + * @rx_dma_l4_valid Rx DMA valid register mask. + * @dma_max_len Max DMA tx/rx buffer length. + * @dma_len_offset Tx/Rx DMA length field offset. + */ +struct mtk_soc_data { + const struct mtk_reg_map *reg_map; + u32 ana_rgc3; + u32 caps; + u32 required_clks; + bool required_pctl; + u8 offload_version; + u8 hash_offset; + u16 foe_entry_size; + netdev_features_t hw_features; + struct { + u32 txd_size; + u32 rxd_size; + u32 rx_irq_done_mask; + u32 rx_dma_l4_valid; + u32 dma_max_len; + u32 dma_len_offset; + } txrx; +}; + +/* currently no SoC has more than 2 macs */ +#define MTK_MAX_DEVS 2 + +/* struct mtk_pcs - This structure holds each sgmii regmap and associated + * data + * @regmap: The register map pointing at the range used to setup + * SGMII modes + * @ana_rgc3: The offset refers to register ANA_RGC3 related to regmap + * @pcs: Phylink PCS structure + */ +struct mtk_pcs { + struct regmap *regmap; + u32 ana_rgc3; + struct phylink_pcs pcs; +}; + +/* struct mtk_sgmii - This is the structure holding sgmii regmap and its + * characteristics + * @pcs Array of individual PCS structures + */ +struct mtk_sgmii { + struct mtk_pcs pcs[MTK_MAX_DEVS]; +}; + +/* struct mtk_eth - This is the main datasructure for holding the state + * of the driver + * @dev: The device pointer + * @dev: The device pointer used for dma mapping/alloc + * @base: The mapped register i/o base + * @page_lock: Make sure that register operations are atomic + * @tx_irq__lock: Make sure that IRQ register operations are atomic + * @rx_irq__lock: Make sure that IRQ register operations are atomic + * @dim_lock: Make sure that Net DIM operations are atomic + * @dummy_dev: we run 2 netdevs on 1 physical DMA ring and need a + * dummy for NAPI to work + * @netdev: The netdev instances + * @mac: Each netdev is linked to a physical MAC + * @irq: The IRQ that we are using + * @msg_enable: Ethtool msg level + * @ethsys: The register map pointing at the range used to setup + * MII modes + * @infra: The register map pointing at the range used to setup + * SGMII and GePHY path + * @pctl: The register map pointing at the range used to setup + * GMAC port drive/slew values + * @dma_refcnt: track how many netdevs are using the DMA engine + * @tx_ring: Pointer to the memory holding info about the TX ring + * @rx_ring: Pointer to the memory holding info about the RX ring + * @rx_ring_qdma: Pointer to the memory holding info about the QDMA RX ring + * @tx_napi: The TX NAPI struct + * @rx_napi: The RX NAPI struct + * @rx_events: Net DIM RX event counter + * @rx_packets: Net DIM RX packet counter + * @rx_bytes: Net DIM RX byte counter + * @rx_dim: Net DIM RX context + * @tx_events: Net DIM TX event counter + * @tx_packets: Net DIM TX packet counter + * @tx_bytes: Net DIM TX byte counter + * @tx_dim: Net DIM TX context + * @scratch_ring: Newer SoCs need memory for a second HW managed TX ring + * @phy_scratch_ring: physical address of scratch_ring + * @scratch_head: The scratch memory that scratch_ring points to. + * @clks: clock array for all clocks required + * @mii_bus: If there is a bus we need to create an instance for it + * @pending_work: The workqueue used to reset the dma ring + * @state: Initialization and runtime state of the device + * @soc: Holding specific data among vaious SoCs + */ + +struct mtk_eth { + struct device *dev; + struct device *dma_dev; + void __iomem *base; + spinlock_t page_lock; + spinlock_t tx_irq_lock; + spinlock_t rx_irq_lock; + struct net_device dummy_dev; + struct net_device *netdev[MTK_MAX_DEVS]; + struct mtk_mac *mac[MTK_MAX_DEVS]; + int irq[3]; + u32 msg_enable; + unsigned long sysclk; + struct regmap *ethsys; + struct regmap *infra; + struct mtk_sgmii *sgmii; + struct regmap *pctl; + bool hwlro; + refcount_t dma_refcnt; + struct mtk_tx_ring tx_ring; + struct mtk_rx_ring rx_ring[MTK_MAX_RX_RING_NUM]; + struct mtk_rx_ring rx_ring_qdma; + struct napi_struct tx_napi; + struct napi_struct rx_napi; + void *scratch_ring; + dma_addr_t phy_scratch_ring; + void *scratch_head; + struct clk *clks[MTK_CLK_MAX]; + + struct mii_bus *mii_bus; + struct work_struct pending_work; + unsigned long state; + + const struct mtk_soc_data *soc; + + spinlock_t dim_lock; + + u32 rx_events; + u32 rx_packets; + u32 rx_bytes; + struct dim rx_dim; + + u32 tx_events; + u32 tx_packets; + u32 tx_bytes; + struct dim tx_dim; + + int ip_align; + + struct mtk_ppe *ppe[2]; + struct rhashtable flow_table; + + struct bpf_prog __rcu *prog; +}; + +/* struct mtk_mac - the structure that holds the info about the MACs of the + * SoC + * @id: The number of the MAC + * @interface: Interface mode kept for detecting change in hw settings + * @of_node: Our devicetree node + * @hw: Backpointer to our main datastruture + * @hw_stats: Packet statistics counter + */ +struct mtk_mac { + int id; + phy_interface_t interface; + int speed; + struct device_node *of_node; + struct phylink *phylink; + struct phylink_config phylink_config; + struct mtk_eth *hw; + struct mtk_hw_stats *hw_stats; + __be32 hwlro_ip[MTK_MAX_LRO_IP_CNT]; + int hwlro_ip_cnt; + unsigned int syscfg0; +}; + +/* the struct describing the SoC. these are declared in the soc_xyz.c files */ +extern const struct of_device_id of_mtk_match[]; + +static inline struct mtk_foe_entry * +mtk_foe_get_entry(struct mtk_ppe *ppe, u16 hash) +{ + const struct mtk_soc_data *soc = ppe->eth->soc; + + return ppe->foe_table + hash * soc->foe_entry_size; +} + +static inline u32 mtk_get_ib1_ts_mask(struct mtk_eth *eth) +{ + if (MTK_HAS_CAPS(eth->soc->caps, MTK_NETSYS_V2)) + return MTK_FOE_IB1_BIND_TIMESTAMP_V2; + + return MTK_FOE_IB1_BIND_TIMESTAMP; +} + +static inline u32 mtk_get_ib1_ppoe_mask(struct mtk_eth *eth) +{ + if (MTK_HAS_CAPS(eth->soc->caps, MTK_NETSYS_V2)) + return MTK_FOE_IB1_BIND_PPPOE_V2; + + return MTK_FOE_IB1_BIND_PPPOE; +} + +static inline u32 mtk_get_ib1_vlan_tag_mask(struct mtk_eth *eth) +{ + if (MTK_HAS_CAPS(eth->soc->caps, MTK_NETSYS_V2)) + return MTK_FOE_IB1_BIND_VLAN_TAG_V2; + + return MTK_FOE_IB1_BIND_VLAN_TAG; +} + +static inline u32 mtk_get_ib1_vlan_layer_mask(struct mtk_eth *eth) +{ + if (MTK_HAS_CAPS(eth->soc->caps, MTK_NETSYS_V2)) + return MTK_FOE_IB1_BIND_VLAN_LAYER_V2; + + return MTK_FOE_IB1_BIND_VLAN_LAYER; +} + +static inline u32 mtk_prep_ib1_vlan_layer(struct mtk_eth *eth, u32 val) +{ + if (MTK_HAS_CAPS(eth->soc->caps, MTK_NETSYS_V2)) + return FIELD_PREP(MTK_FOE_IB1_BIND_VLAN_LAYER_V2, val); + + return FIELD_PREP(MTK_FOE_IB1_BIND_VLAN_LAYER, val); +} + +static inline u32 mtk_get_ib1_vlan_layer(struct mtk_eth *eth, u32 val) +{ + if (MTK_HAS_CAPS(eth->soc->caps, MTK_NETSYS_V2)) + return FIELD_GET(MTK_FOE_IB1_BIND_VLAN_LAYER_V2, val); + + return FIELD_GET(MTK_FOE_IB1_BIND_VLAN_LAYER, val); +} + +static inline u32 mtk_get_ib1_pkt_type_mask(struct mtk_eth *eth) +{ + if (MTK_HAS_CAPS(eth->soc->caps, MTK_NETSYS_V2)) + return MTK_FOE_IB1_PACKET_TYPE_V2; + + return MTK_FOE_IB1_PACKET_TYPE; +} + +static inline u32 mtk_get_ib1_pkt_type(struct mtk_eth *eth, u32 val) +{ + if (MTK_HAS_CAPS(eth->soc->caps, MTK_NETSYS_V2)) + return FIELD_GET(MTK_FOE_IB1_PACKET_TYPE_V2, val); + + return FIELD_GET(MTK_FOE_IB1_PACKET_TYPE, val); +} + +static inline u32 mtk_get_ib2_multicast_mask(struct mtk_eth *eth) +{ + if (MTK_HAS_CAPS(eth->soc->caps, MTK_NETSYS_V2)) + return MTK_FOE_IB2_MULTICAST_V2; + + return MTK_FOE_IB2_MULTICAST; +} + +/* read the hardware status register */ +void mtk_stats_update_mac(struct mtk_mac *mac); + +void mtk_w32(struct mtk_eth *eth, u32 val, unsigned reg); +u32 mtk_r32(struct mtk_eth *eth, unsigned reg); + +struct phylink_pcs *mtk_sgmii_select_pcs(struct mtk_sgmii *ss, int id); +int mtk_sgmii_init(struct mtk_sgmii *ss, struct device_node *np, + u32 ana_rgc3); + +int mtk_gmac_sgmii_path_setup(struct mtk_eth *eth, int mac_id); +int mtk_gmac_gephy_path_setup(struct mtk_eth *eth, int mac_id); +int mtk_gmac_rgmii_path_setup(struct mtk_eth *eth, int mac_id); + +int mtk_eth_offload_init(struct mtk_eth *eth); +int mtk_eth_setup_tc(struct net_device *dev, enum tc_setup_type type, + void *type_data); +void mtk_eth_set_dma_device(struct mtk_eth *eth, struct device *dma_dev); + + +#endif /* MTK_ETH_H */ |