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-rw-r--r--drivers/net/ethernet/realtek/8139cp.c2121
-rw-r--r--drivers/net/ethernet/realtek/8139too.c2678
-rw-r--r--drivers/net/ethernet/realtek/Kconfig116
-rw-r--r--drivers/net/ethernet/realtek/Makefile10
-rw-r--r--drivers/net/ethernet/realtek/atp.c886
-rw-r--r--drivers/net/ethernet/realtek/atp.h262
-rw-r--r--drivers/net/ethernet/realtek/r8169.h79
-rw-r--r--drivers/net/ethernet/realtek/r8169_firmware.c236
-rw-r--r--drivers/net/ethernet/realtek/r8169_firmware.h39
-rw-r--r--drivers/net/ethernet/realtek/r8169_main.c5389
-rw-r--r--drivers/net/ethernet/realtek/r8169_phy_config.c1159
11 files changed, 12975 insertions, 0 deletions
diff --git a/drivers/net/ethernet/realtek/8139cp.c b/drivers/net/ethernet/realtek/8139cp.c
new file mode 100644
index 000000000..f5786d78e
--- /dev/null
+++ b/drivers/net/ethernet/realtek/8139cp.c
@@ -0,0 +1,2121 @@
+/* 8139cp.c: A Linux PCI Ethernet driver for the RealTek 8139C+ chips. */
+/*
+ Copyright 2001-2004 Jeff Garzik <jgarzik@pobox.com>
+
+ Copyright (C) 2001, 2002 David S. Miller (davem@redhat.com) [tg3.c]
+ Copyright (C) 2000, 2001 David S. Miller (davem@redhat.com) [sungem.c]
+ Copyright 2001 Manfred Spraul [natsemi.c]
+ Copyright 1999-2001 by Donald Becker. [natsemi.c]
+ Written 1997-2001 by Donald Becker. [8139too.c]
+ Copyright 1998-2001 by Jes Sorensen, <jes@trained-monkey.org>. [acenic.c]
+
+ This software may be used and distributed according to the terms of
+ the GNU General Public License (GPL), incorporated herein by reference.
+ Drivers based on or derived from this code fall under the GPL and must
+ retain the authorship, copyright and license notice. This file is not
+ a complete program and may only be used when the entire operating
+ system is licensed under the GPL.
+
+ See the file COPYING in this distribution for more information.
+
+ Contributors:
+
+ Wake-on-LAN support - Felipe Damasio <felipewd@terra.com.br>
+ PCI suspend/resume - Felipe Damasio <felipewd@terra.com.br>
+ LinkChg interrupt - Felipe Damasio <felipewd@terra.com.br>
+
+ TODO:
+ * Test Tx checksumming thoroughly
+
+ Low priority TODO:
+ * Complete reset on PciErr
+ * Consider Rx interrupt mitigation using TimerIntr
+ * Investigate using skb->priority with h/w VLAN priority
+ * Investigate using High Priority Tx Queue with skb->priority
+ * Adjust Rx FIFO threshold and Max Rx DMA burst on Rx FIFO error
+ * Adjust Tx FIFO threshold and Max Tx DMA burst on Tx FIFO error
+ * Implement Tx software interrupt mitigation via
+ Tx descriptor bit
+ * The real minimum of CP_MIN_MTU is 4 bytes. However,
+ for this to be supported, one must(?) turn on packet padding.
+ * Support external MII transceivers (patch available)
+
+ NOTES:
+ * TX checksumming is considered experimental. It is off by
+ default, use ethtool to turn it on.
+
+ */
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
+#define DRV_NAME "8139cp"
+#define DRV_VERSION "1.3"
+#define DRV_RELDATE "Mar 22, 2004"
+
+
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/kernel.h>
+#include <linux/compiler.h>
+#include <linux/netdevice.h>
+#include <linux/etherdevice.h>
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/pci.h>
+#include <linux/dma-mapping.h>
+#include <linux/delay.h>
+#include <linux/ethtool.h>
+#include <linux/gfp.h>
+#include <linux/mii.h>
+#include <linux/if_vlan.h>
+#include <linux/crc32.h>
+#include <linux/in.h>
+#include <linux/ip.h>
+#include <linux/tcp.h>
+#include <linux/udp.h>
+#include <linux/cache.h>
+#include <asm/io.h>
+#include <asm/irq.h>
+#include <linux/uaccess.h>
+
+/* These identify the driver base version and may not be removed. */
+static char version[] =
+DRV_NAME ": 10/100 PCI Ethernet driver v" DRV_VERSION " (" DRV_RELDATE ")\n";
+
+MODULE_AUTHOR("Jeff Garzik <jgarzik@pobox.com>");
+MODULE_DESCRIPTION("RealTek RTL-8139C+ series 10/100 PCI Ethernet driver");
+MODULE_VERSION(DRV_VERSION);
+MODULE_LICENSE("GPL");
+
+static int debug = -1;
+module_param(debug, int, 0);
+MODULE_PARM_DESC (debug, "8139cp: bitmapped message enable number");
+
+/* Maximum number of multicast addresses to filter (vs. Rx-all-multicast).
+ The RTL chips use a 64 element hash table based on the Ethernet CRC. */
+static int multicast_filter_limit = 32;
+module_param(multicast_filter_limit, int, 0);
+MODULE_PARM_DESC (multicast_filter_limit, "8139cp: maximum number of filtered multicast addresses");
+
+#define CP_DEF_MSG_ENABLE (NETIF_MSG_DRV | \
+ NETIF_MSG_PROBE | \
+ NETIF_MSG_LINK)
+#define CP_NUM_STATS 14 /* struct cp_dma_stats, plus one */
+#define CP_STATS_SIZE 64 /* size in bytes of DMA stats block */
+#define CP_REGS_SIZE (0xff + 1)
+#define CP_REGS_VER 1 /* version 1 */
+#define CP_RX_RING_SIZE 64
+#define CP_TX_RING_SIZE 64
+#define CP_RING_BYTES \
+ ((sizeof(struct cp_desc) * CP_RX_RING_SIZE) + \
+ (sizeof(struct cp_desc) * CP_TX_RING_SIZE) + \
+ CP_STATS_SIZE)
+#define NEXT_TX(N) (((N) + 1) & (CP_TX_RING_SIZE - 1))
+#define NEXT_RX(N) (((N) + 1) & (CP_RX_RING_SIZE - 1))
+#define TX_BUFFS_AVAIL(CP) \
+ (((CP)->tx_tail <= (CP)->tx_head) ? \
+ (CP)->tx_tail + (CP_TX_RING_SIZE - 1) - (CP)->tx_head : \
+ (CP)->tx_tail - (CP)->tx_head - 1)
+
+#define PKT_BUF_SZ 1536 /* Size of each temporary Rx buffer.*/
+#define CP_INTERNAL_PHY 32
+
+/* The following settings are log_2(bytes)-4: 0 == 16 bytes .. 6==1024, 7==end of packet. */
+#define RX_FIFO_THRESH 5 /* Rx buffer level before first PCI xfer. */
+#define RX_DMA_BURST 4 /* Maximum PCI burst, '4' is 256 */
+#define TX_DMA_BURST 6 /* Maximum PCI burst, '6' is 1024 */
+#define TX_EARLY_THRESH 256 /* Early Tx threshold, in bytes */
+
+/* Time in jiffies before concluding the transmitter is hung. */
+#define TX_TIMEOUT (6*HZ)
+
+/* hardware minimum and maximum for a single frame's data payload */
+#define CP_MIN_MTU 60 /* TODO: allow lower, but pad */
+#define CP_MAX_MTU 4096
+
+enum {
+ /* NIC register offsets */
+ MAC0 = 0x00, /* Ethernet hardware address. */
+ MAR0 = 0x08, /* Multicast filter. */
+ StatsAddr = 0x10, /* 64-bit start addr of 64-byte DMA stats blk */
+ TxRingAddr = 0x20, /* 64-bit start addr of Tx ring */
+ HiTxRingAddr = 0x28, /* 64-bit start addr of high priority Tx ring */
+ Cmd = 0x37, /* Command register */
+ IntrMask = 0x3C, /* Interrupt mask */
+ IntrStatus = 0x3E, /* Interrupt status */
+ TxConfig = 0x40, /* Tx configuration */
+ ChipVersion = 0x43, /* 8-bit chip version, inside TxConfig */
+ RxConfig = 0x44, /* Rx configuration */
+ RxMissed = 0x4C, /* 24 bits valid, write clears */
+ Cfg9346 = 0x50, /* EEPROM select/control; Cfg reg [un]lock */
+ Config1 = 0x52, /* Config1 */
+ Config3 = 0x59, /* Config3 */
+ Config4 = 0x5A, /* Config4 */
+ MultiIntr = 0x5C, /* Multiple interrupt select */
+ BasicModeCtrl = 0x62, /* MII BMCR */
+ BasicModeStatus = 0x64, /* MII BMSR */
+ NWayAdvert = 0x66, /* MII ADVERTISE */
+ NWayLPAR = 0x68, /* MII LPA */
+ NWayExpansion = 0x6A, /* MII Expansion */
+ TxDmaOkLowDesc = 0x82, /* Low 16 bit address of a Tx descriptor. */
+ Config5 = 0xD8, /* Config5 */
+ TxPoll = 0xD9, /* Tell chip to check Tx descriptors for work */
+ RxMaxSize = 0xDA, /* Max size of an Rx packet (8169 only) */
+ CpCmd = 0xE0, /* C+ Command register (C+ mode only) */
+ IntrMitigate = 0xE2, /* rx/tx interrupt mitigation control */
+ RxRingAddr = 0xE4, /* 64-bit start addr of Rx ring */
+ TxThresh = 0xEC, /* Early Tx threshold */
+ OldRxBufAddr = 0x30, /* DMA address of Rx ring buffer (C mode) */
+ OldTSD0 = 0x10, /* DMA address of first Tx desc (C mode) */
+
+ /* Tx and Rx status descriptors */
+ DescOwn = (1 << 31), /* Descriptor is owned by NIC */
+ RingEnd = (1 << 30), /* End of descriptor ring */
+ FirstFrag = (1 << 29), /* First segment of a packet */
+ LastFrag = (1 << 28), /* Final segment of a packet */
+ LargeSend = (1 << 27), /* TCP Large Send Offload (TSO) */
+ MSSShift = 16, /* MSS value position */
+ MSSMask = 0x7ff, /* MSS value: 11 bits */
+ TxError = (1 << 23), /* Tx error summary */
+ RxError = (1 << 20), /* Rx error summary */
+ IPCS = (1 << 18), /* Calculate IP checksum */
+ UDPCS = (1 << 17), /* Calculate UDP/IP checksum */
+ TCPCS = (1 << 16), /* Calculate TCP/IP checksum */
+ TxVlanTag = (1 << 17), /* Add VLAN tag */
+ RxVlanTagged = (1 << 16), /* Rx VLAN tag available */
+ IPFail = (1 << 15), /* IP checksum failed */
+ UDPFail = (1 << 14), /* UDP/IP checksum failed */
+ TCPFail = (1 << 13), /* TCP/IP checksum failed */
+ NormalTxPoll = (1 << 6), /* One or more normal Tx packets to send */
+ PID1 = (1 << 17), /* 2 protocol id bits: 0==non-IP, */
+ PID0 = (1 << 16), /* 1==UDP/IP, 2==TCP/IP, 3==IP */
+ RxProtoTCP = 1,
+ RxProtoUDP = 2,
+ RxProtoIP = 3,
+ TxFIFOUnder = (1 << 25), /* Tx FIFO underrun */
+ TxOWC = (1 << 22), /* Tx Out-of-window collision */
+ TxLinkFail = (1 << 21), /* Link failed during Tx of packet */
+ TxMaxCol = (1 << 20), /* Tx aborted due to excessive collisions */
+ TxColCntShift = 16, /* Shift, to get 4-bit Tx collision cnt */
+ TxColCntMask = 0x01 | 0x02 | 0x04 | 0x08, /* 4-bit collision count */
+ RxErrFrame = (1 << 27), /* Rx frame alignment error */
+ RxMcast = (1 << 26), /* Rx multicast packet rcv'd */
+ RxErrCRC = (1 << 18), /* Rx CRC error */
+ RxErrRunt = (1 << 19), /* Rx error, packet < 64 bytes */
+ RxErrLong = (1 << 21), /* Rx error, packet > 4096 bytes */
+ RxErrFIFO = (1 << 22), /* Rx error, FIFO overflowed, pkt bad */
+
+ /* StatsAddr register */
+ DumpStats = (1 << 3), /* Begin stats dump */
+
+ /* RxConfig register */
+ RxCfgFIFOShift = 13, /* Shift, to get Rx FIFO thresh value */
+ RxCfgDMAShift = 8, /* Shift, to get Rx Max DMA value */
+ AcceptErr = 0x20, /* Accept packets with CRC errors */
+ AcceptRunt = 0x10, /* Accept runt (<64 bytes) packets */
+ AcceptBroadcast = 0x08, /* Accept broadcast packets */
+ AcceptMulticast = 0x04, /* Accept multicast packets */
+ AcceptMyPhys = 0x02, /* Accept pkts with our MAC as dest */
+ AcceptAllPhys = 0x01, /* Accept all pkts w/ physical dest */
+
+ /* IntrMask / IntrStatus registers */
+ PciErr = (1 << 15), /* System error on the PCI bus */
+ TimerIntr = (1 << 14), /* Asserted when TCTR reaches TimerInt value */
+ LenChg = (1 << 13), /* Cable length change */
+ SWInt = (1 << 8), /* Software-requested interrupt */
+ TxEmpty = (1 << 7), /* No Tx descriptors available */
+ RxFIFOOvr = (1 << 6), /* Rx FIFO Overflow */
+ LinkChg = (1 << 5), /* Packet underrun, or link change */
+ RxEmpty = (1 << 4), /* No Rx descriptors available */
+ TxErr = (1 << 3), /* Tx error */
+ TxOK = (1 << 2), /* Tx packet sent */
+ RxErr = (1 << 1), /* Rx error */
+ RxOK = (1 << 0), /* Rx packet received */
+ IntrResvd = (1 << 10), /* reserved, according to RealTek engineers,
+ but hardware likes to raise it */
+
+ IntrAll = PciErr | TimerIntr | LenChg | SWInt | TxEmpty |
+ RxFIFOOvr | LinkChg | RxEmpty | TxErr | TxOK |
+ RxErr | RxOK | IntrResvd,
+
+ /* C mode command register */
+ CmdReset = (1 << 4), /* Enable to reset; self-clearing */
+ RxOn = (1 << 3), /* Rx mode enable */
+ TxOn = (1 << 2), /* Tx mode enable */
+
+ /* C+ mode command register */
+ RxVlanOn = (1 << 6), /* Rx VLAN de-tagging enable */
+ RxChkSum = (1 << 5), /* Rx checksum offload enable */
+ PCIDAC = (1 << 4), /* PCI Dual Address Cycle (64-bit PCI) */
+ PCIMulRW = (1 << 3), /* Enable PCI read/write multiple */
+ CpRxOn = (1 << 1), /* Rx mode enable */
+ CpTxOn = (1 << 0), /* Tx mode enable */
+
+ /* Cfg9436 EEPROM control register */
+ Cfg9346_Lock = 0x00, /* Lock ConfigX/MII register access */
+ Cfg9346_Unlock = 0xC0, /* Unlock ConfigX/MII register access */
+
+ /* TxConfig register */
+ IFG = (1 << 25) | (1 << 24), /* standard IEEE interframe gap */
+ TxDMAShift = 8, /* DMA burst value (0-7) is shift this many bits */
+
+ /* Early Tx Threshold register */
+ TxThreshMask = 0x3f, /* Mask bits 5-0 */
+ TxThreshMax = 2048, /* Max early Tx threshold */
+
+ /* Config1 register */
+ DriverLoaded = (1 << 5), /* Software marker, driver is loaded */
+ LWACT = (1 << 4), /* LWAKE active mode */
+ PMEnable = (1 << 0), /* Enable various PM features of chip */
+
+ /* Config3 register */
+ PARMEnable = (1 << 6), /* Enable auto-loading of PHY parms */
+ MagicPacket = (1 << 5), /* Wake up when receives a Magic Packet */
+ LinkUp = (1 << 4), /* Wake up when the cable connection is re-established */
+
+ /* Config4 register */
+ LWPTN = (1 << 1), /* LWAKE Pattern */
+ LWPME = (1 << 4), /* LANWAKE vs PMEB */
+
+ /* Config5 register */
+ BWF = (1 << 6), /* Accept Broadcast wakeup frame */
+ MWF = (1 << 5), /* Accept Multicast wakeup frame */
+ UWF = (1 << 4), /* Accept Unicast wakeup frame */
+ LANWake = (1 << 1), /* Enable LANWake signal */
+ PMEStatus = (1 << 0), /* PME status can be reset by PCI RST# */
+
+ cp_norx_intr_mask = PciErr | LinkChg | TxOK | TxErr | TxEmpty,
+ cp_rx_intr_mask = RxOK | RxErr | RxEmpty | RxFIFOOvr,
+ cp_intr_mask = cp_rx_intr_mask | cp_norx_intr_mask,
+};
+
+static const unsigned int cp_rx_config =
+ (RX_FIFO_THRESH << RxCfgFIFOShift) |
+ (RX_DMA_BURST << RxCfgDMAShift);
+
+struct cp_desc {
+ __le32 opts1;
+ __le32 opts2;
+ __le64 addr;
+};
+
+struct cp_dma_stats {
+ __le64 tx_ok;
+ __le64 rx_ok;
+ __le64 tx_err;
+ __le32 rx_err;
+ __le16 rx_fifo;
+ __le16 frame_align;
+ __le32 tx_ok_1col;
+ __le32 tx_ok_mcol;
+ __le64 rx_ok_phys;
+ __le64 rx_ok_bcast;
+ __le32 rx_ok_mcast;
+ __le16 tx_abort;
+ __le16 tx_underrun;
+} __packed;
+
+struct cp_extra_stats {
+ unsigned long rx_frags;
+};
+
+struct cp_private {
+ void __iomem *regs;
+ struct net_device *dev;
+ spinlock_t lock;
+ u32 msg_enable;
+
+ struct napi_struct napi;
+
+ struct pci_dev *pdev;
+ u32 rx_config;
+ u16 cpcmd;
+
+ struct cp_extra_stats cp_stats;
+
+ unsigned rx_head ____cacheline_aligned;
+ unsigned rx_tail;
+ struct cp_desc *rx_ring;
+ struct sk_buff *rx_skb[CP_RX_RING_SIZE];
+
+ unsigned tx_head ____cacheline_aligned;
+ unsigned tx_tail;
+ struct cp_desc *tx_ring;
+ struct sk_buff *tx_skb[CP_TX_RING_SIZE];
+ u32 tx_opts[CP_TX_RING_SIZE];
+
+ unsigned rx_buf_sz;
+ unsigned wol_enabled : 1; /* Is Wake-on-LAN enabled? */
+
+ dma_addr_t ring_dma;
+
+ struct mii_if_info mii_if;
+};
+
+#define cpr8(reg) readb(cp->regs + (reg))
+#define cpr16(reg) readw(cp->regs + (reg))
+#define cpr32(reg) readl(cp->regs + (reg))
+#define cpw8(reg,val) writeb((val), cp->regs + (reg))
+#define cpw16(reg,val) writew((val), cp->regs + (reg))
+#define cpw32(reg,val) writel((val), cp->regs + (reg))
+#define cpw8_f(reg,val) do { \
+ writeb((val), cp->regs + (reg)); \
+ readb(cp->regs + (reg)); \
+ } while (0)
+#define cpw16_f(reg,val) do { \
+ writew((val), cp->regs + (reg)); \
+ readw(cp->regs + (reg)); \
+ } while (0)
+#define cpw32_f(reg,val) do { \
+ writel((val), cp->regs + (reg)); \
+ readl(cp->regs + (reg)); \
+ } while (0)
+
+
+static void __cp_set_rx_mode (struct net_device *dev);
+static void cp_tx (struct cp_private *cp);
+static void cp_clean_rings (struct cp_private *cp);
+#ifdef CONFIG_NET_POLL_CONTROLLER
+static void cp_poll_controller(struct net_device *dev);
+#endif
+static int cp_get_eeprom_len(struct net_device *dev);
+static int cp_get_eeprom(struct net_device *dev,
+ struct ethtool_eeprom *eeprom, u8 *data);
+static int cp_set_eeprom(struct net_device *dev,
+ struct ethtool_eeprom *eeprom, u8 *data);
+
+static struct {
+ const char str[ETH_GSTRING_LEN];
+} ethtool_stats_keys[] = {
+ { "tx_ok" },
+ { "rx_ok" },
+ { "tx_err" },
+ { "rx_err" },
+ { "rx_fifo" },
+ { "frame_align" },
+ { "tx_ok_1col" },
+ { "tx_ok_mcol" },
+ { "rx_ok_phys" },
+ { "rx_ok_bcast" },
+ { "rx_ok_mcast" },
+ { "tx_abort" },
+ { "tx_underrun" },
+ { "rx_frags" },
+};
+
+
+static inline void cp_set_rxbufsize (struct cp_private *cp)
+{
+ unsigned int mtu = cp->dev->mtu;
+
+ if (mtu > ETH_DATA_LEN)
+ /* MTU + ethernet header + FCS + optional VLAN tag */
+ cp->rx_buf_sz = mtu + ETH_HLEN + 8;
+ else
+ cp->rx_buf_sz = PKT_BUF_SZ;
+}
+
+static inline void cp_rx_skb (struct cp_private *cp, struct sk_buff *skb,
+ struct cp_desc *desc)
+{
+ u32 opts2 = le32_to_cpu(desc->opts2);
+
+ skb->protocol = eth_type_trans (skb, cp->dev);
+
+ cp->dev->stats.rx_packets++;
+ cp->dev->stats.rx_bytes += skb->len;
+
+ if (opts2 & RxVlanTagged)
+ __vlan_hwaccel_put_tag(skb, htons(ETH_P_8021Q), swab16(opts2 & 0xffff));
+
+ napi_gro_receive(&cp->napi, skb);
+}
+
+static void cp_rx_err_acct (struct cp_private *cp, unsigned rx_tail,
+ u32 status, u32 len)
+{
+ netif_dbg(cp, rx_err, cp->dev, "rx err, slot %d status 0x%x len %d\n",
+ rx_tail, status, len);
+ cp->dev->stats.rx_errors++;
+ if (status & RxErrFrame)
+ cp->dev->stats.rx_frame_errors++;
+ if (status & RxErrCRC)
+ cp->dev->stats.rx_crc_errors++;
+ if ((status & RxErrRunt) || (status & RxErrLong))
+ cp->dev->stats.rx_length_errors++;
+ if ((status & (FirstFrag | LastFrag)) != (FirstFrag | LastFrag))
+ cp->dev->stats.rx_length_errors++;
+ if (status & RxErrFIFO)
+ cp->dev->stats.rx_fifo_errors++;
+}
+
+static inline unsigned int cp_rx_csum_ok (u32 status)
+{
+ unsigned int protocol = (status >> 16) & 0x3;
+
+ if (((protocol == RxProtoTCP) && !(status & TCPFail)) ||
+ ((protocol == RxProtoUDP) && !(status & UDPFail)))
+ return 1;
+ else
+ return 0;
+}
+
+static int cp_rx_poll(struct napi_struct *napi, int budget)
+{
+ struct cp_private *cp = container_of(napi, struct cp_private, napi);
+ struct net_device *dev = cp->dev;
+ unsigned int rx_tail = cp->rx_tail;
+ int rx = 0;
+
+ cpw16(IntrStatus, cp_rx_intr_mask);
+
+ while (rx < budget) {
+ u32 status, len;
+ dma_addr_t mapping, new_mapping;
+ struct sk_buff *skb, *new_skb;
+ struct cp_desc *desc;
+ const unsigned buflen = cp->rx_buf_sz;
+
+ skb = cp->rx_skb[rx_tail];
+ BUG_ON(!skb);
+
+ desc = &cp->rx_ring[rx_tail];
+ status = le32_to_cpu(desc->opts1);
+ if (status & DescOwn)
+ break;
+
+ len = (status & 0x1fff) - 4;
+ mapping = le64_to_cpu(desc->addr);
+
+ if ((status & (FirstFrag | LastFrag)) != (FirstFrag | LastFrag)) {
+ /* we don't support incoming fragmented frames.
+ * instead, we attempt to ensure that the
+ * pre-allocated RX skbs are properly sized such
+ * that RX fragments are never encountered
+ */
+ cp_rx_err_acct(cp, rx_tail, status, len);
+ dev->stats.rx_dropped++;
+ cp->cp_stats.rx_frags++;
+ goto rx_next;
+ }
+
+ if (status & (RxError | RxErrFIFO)) {
+ cp_rx_err_acct(cp, rx_tail, status, len);
+ goto rx_next;
+ }
+
+ netif_dbg(cp, rx_status, dev, "rx slot %d status 0x%x len %d\n",
+ rx_tail, status, len);
+
+ new_skb = napi_alloc_skb(napi, buflen);
+ if (!new_skb) {
+ dev->stats.rx_dropped++;
+ goto rx_next;
+ }
+
+ new_mapping = dma_map_single(&cp->pdev->dev, new_skb->data, buflen,
+ DMA_FROM_DEVICE);
+ if (dma_mapping_error(&cp->pdev->dev, new_mapping)) {
+ dev->stats.rx_dropped++;
+ kfree_skb(new_skb);
+ goto rx_next;
+ }
+
+ dma_unmap_single(&cp->pdev->dev, mapping,
+ buflen, DMA_FROM_DEVICE);
+
+ /* Handle checksum offloading for incoming packets. */
+ if (cp_rx_csum_ok(status))
+ skb->ip_summed = CHECKSUM_UNNECESSARY;
+ else
+ skb_checksum_none_assert(skb);
+
+ skb_put(skb, len);
+
+ cp->rx_skb[rx_tail] = new_skb;
+
+ cp_rx_skb(cp, skb, desc);
+ rx++;
+ mapping = new_mapping;
+
+rx_next:
+ cp->rx_ring[rx_tail].opts2 = 0;
+ cp->rx_ring[rx_tail].addr = cpu_to_le64(mapping);
+ if (rx_tail == (CP_RX_RING_SIZE - 1))
+ desc->opts1 = cpu_to_le32(DescOwn | RingEnd |
+ cp->rx_buf_sz);
+ else
+ desc->opts1 = cpu_to_le32(DescOwn | cp->rx_buf_sz);
+ rx_tail = NEXT_RX(rx_tail);
+ }
+
+ cp->rx_tail = rx_tail;
+
+ /* if we did not reach work limit, then we're done with
+ * this round of polling
+ */
+ if (rx < budget && napi_complete_done(napi, rx)) {
+ unsigned long flags;
+
+ spin_lock_irqsave(&cp->lock, flags);
+ cpw16_f(IntrMask, cp_intr_mask);
+ spin_unlock_irqrestore(&cp->lock, flags);
+ }
+
+ return rx;
+}
+
+static irqreturn_t cp_interrupt (int irq, void *dev_instance)
+{
+ struct net_device *dev = dev_instance;
+ struct cp_private *cp;
+ int handled = 0;
+ u16 status;
+ u16 mask;
+
+ if (unlikely(dev == NULL))
+ return IRQ_NONE;
+ cp = netdev_priv(dev);
+
+ spin_lock(&cp->lock);
+
+ mask = cpr16(IntrMask);
+ if (!mask)
+ goto out_unlock;
+
+ status = cpr16(IntrStatus);
+ if (!status || (status == 0xFFFF))
+ goto out_unlock;
+
+ handled = 1;
+
+ netif_dbg(cp, intr, dev, "intr, status %04x cmd %02x cpcmd %04x\n",
+ status, cpr8(Cmd), cpr16(CpCmd));
+
+ cpw16(IntrStatus, status & ~cp_rx_intr_mask);
+
+ /* close possible race's with dev_close */
+ if (unlikely(!netif_running(dev))) {
+ cpw16(IntrMask, 0);
+ goto out_unlock;
+ }
+
+ if (status & (RxOK | RxErr | RxEmpty | RxFIFOOvr))
+ if (napi_schedule_prep(&cp->napi)) {
+ cpw16_f(IntrMask, cp_norx_intr_mask);
+ __napi_schedule(&cp->napi);
+ }
+
+ if (status & (TxOK | TxErr | TxEmpty | SWInt))
+ cp_tx(cp);
+ if (status & LinkChg)
+ mii_check_media(&cp->mii_if, netif_msg_link(cp), false);
+
+
+ if (status & PciErr) {
+ u16 pci_status;
+
+ pci_read_config_word(cp->pdev, PCI_STATUS, &pci_status);
+ pci_write_config_word(cp->pdev, PCI_STATUS, pci_status);
+ netdev_err(dev, "PCI bus error, status=%04x, PCI status=%04x\n",
+ status, pci_status);
+
+ /* TODO: reset hardware */
+ }
+
+out_unlock:
+ spin_unlock(&cp->lock);
+
+ return IRQ_RETVAL(handled);
+}
+
+#ifdef CONFIG_NET_POLL_CONTROLLER
+/*
+ * Polling receive - used by netconsole and other diagnostic tools
+ * to allow network i/o with interrupts disabled.
+ */
+static void cp_poll_controller(struct net_device *dev)
+{
+ struct cp_private *cp = netdev_priv(dev);
+ const int irq = cp->pdev->irq;
+
+ disable_irq(irq);
+ cp_interrupt(irq, dev);
+ enable_irq(irq);
+}
+#endif
+
+static void cp_tx (struct cp_private *cp)
+{
+ unsigned tx_head = cp->tx_head;
+ unsigned tx_tail = cp->tx_tail;
+ unsigned bytes_compl = 0, pkts_compl = 0;
+
+ while (tx_tail != tx_head) {
+ struct cp_desc *txd = cp->tx_ring + tx_tail;
+ struct sk_buff *skb;
+ u32 status;
+
+ rmb();
+ status = le32_to_cpu(txd->opts1);
+ if (status & DescOwn)
+ break;
+
+ skb = cp->tx_skb[tx_tail];
+ BUG_ON(!skb);
+
+ dma_unmap_single(&cp->pdev->dev, le64_to_cpu(txd->addr),
+ cp->tx_opts[tx_tail] & 0xffff,
+ DMA_TO_DEVICE);
+
+ if (status & LastFrag) {
+ if (status & (TxError | TxFIFOUnder)) {
+ netif_dbg(cp, tx_err, cp->dev,
+ "tx err, status 0x%x\n", status);
+ cp->dev->stats.tx_errors++;
+ if (status & TxOWC)
+ cp->dev->stats.tx_window_errors++;
+ if (status & TxMaxCol)
+ cp->dev->stats.tx_aborted_errors++;
+ if (status & TxLinkFail)
+ cp->dev->stats.tx_carrier_errors++;
+ if (status & TxFIFOUnder)
+ cp->dev->stats.tx_fifo_errors++;
+ } else {
+ cp->dev->stats.collisions +=
+ ((status >> TxColCntShift) & TxColCntMask);
+ cp->dev->stats.tx_packets++;
+ cp->dev->stats.tx_bytes += skb->len;
+ netif_dbg(cp, tx_done, cp->dev,
+ "tx done, slot %d\n", tx_tail);
+ }
+ bytes_compl += skb->len;
+ pkts_compl++;
+ dev_consume_skb_irq(skb);
+ }
+
+ cp->tx_skb[tx_tail] = NULL;
+
+ tx_tail = NEXT_TX(tx_tail);
+ }
+
+ cp->tx_tail = tx_tail;
+
+ netdev_completed_queue(cp->dev, pkts_compl, bytes_compl);
+ if (TX_BUFFS_AVAIL(cp) > (MAX_SKB_FRAGS + 1))
+ netif_wake_queue(cp->dev);
+}
+
+static inline u32 cp_tx_vlan_tag(struct sk_buff *skb)
+{
+ return skb_vlan_tag_present(skb) ?
+ TxVlanTag | swab16(skb_vlan_tag_get(skb)) : 0x00;
+}
+
+static void unwind_tx_frag_mapping(struct cp_private *cp, struct sk_buff *skb,
+ int first, int entry_last)
+{
+ int frag, index;
+ struct cp_desc *txd;
+ skb_frag_t *this_frag;
+ for (frag = 0; frag+first < entry_last; frag++) {
+ index = first+frag;
+ cp->tx_skb[index] = NULL;
+ txd = &cp->tx_ring[index];
+ this_frag = &skb_shinfo(skb)->frags[frag];
+ dma_unmap_single(&cp->pdev->dev, le64_to_cpu(txd->addr),
+ skb_frag_size(this_frag), DMA_TO_DEVICE);
+ }
+}
+
+static netdev_tx_t cp_start_xmit (struct sk_buff *skb,
+ struct net_device *dev)
+{
+ struct cp_private *cp = netdev_priv(dev);
+ unsigned entry;
+ u32 eor, opts1;
+ unsigned long intr_flags;
+ __le32 opts2;
+ int mss = 0;
+
+ spin_lock_irqsave(&cp->lock, intr_flags);
+
+ /* This is a hard error, log it. */
+ if (TX_BUFFS_AVAIL(cp) <= (skb_shinfo(skb)->nr_frags + 1)) {
+ netif_stop_queue(dev);
+ spin_unlock_irqrestore(&cp->lock, intr_flags);
+ netdev_err(dev, "BUG! Tx Ring full when queue awake!\n");
+ return NETDEV_TX_BUSY;
+ }
+
+ entry = cp->tx_head;
+ eor = (entry == (CP_TX_RING_SIZE - 1)) ? RingEnd : 0;
+ mss = skb_shinfo(skb)->gso_size;
+
+ if (mss > MSSMask) {
+ netdev_WARN_ONCE(dev, "Net bug: GSO size %d too large for 8139CP\n",
+ mss);
+ goto out_dma_error;
+ }
+
+ opts2 = cpu_to_le32(cp_tx_vlan_tag(skb));
+ opts1 = DescOwn;
+ if (mss)
+ opts1 |= LargeSend | (mss << MSSShift);
+ else if (skb->ip_summed == CHECKSUM_PARTIAL) {
+ const struct iphdr *ip = ip_hdr(skb);
+ if (ip->protocol == IPPROTO_TCP)
+ opts1 |= IPCS | TCPCS;
+ else if (ip->protocol == IPPROTO_UDP)
+ opts1 |= IPCS | UDPCS;
+ else {
+ WARN_ONCE(1,
+ "Net bug: asked to checksum invalid Legacy IP packet\n");
+ goto out_dma_error;
+ }
+ }
+
+ if (skb_shinfo(skb)->nr_frags == 0) {
+ struct cp_desc *txd = &cp->tx_ring[entry];
+ u32 len;
+ dma_addr_t mapping;
+
+ len = skb->len;
+ mapping = dma_map_single(&cp->pdev->dev, skb->data, len, DMA_TO_DEVICE);
+ if (dma_mapping_error(&cp->pdev->dev, mapping))
+ goto out_dma_error;
+
+ txd->opts2 = opts2;
+ txd->addr = cpu_to_le64(mapping);
+ wmb();
+
+ opts1 |= eor | len | FirstFrag | LastFrag;
+
+ txd->opts1 = cpu_to_le32(opts1);
+ wmb();
+
+ cp->tx_skb[entry] = skb;
+ cp->tx_opts[entry] = opts1;
+ netif_dbg(cp, tx_queued, cp->dev, "tx queued, slot %d, skblen %d\n",
+ entry, skb->len);
+ } else {
+ struct cp_desc *txd;
+ u32 first_len, first_eor, ctrl;
+ dma_addr_t first_mapping;
+ int frag, first_entry = entry;
+
+ /* We must give this initial chunk to the device last.
+ * Otherwise we could race with the device.
+ */
+ first_eor = eor;
+ first_len = skb_headlen(skb);
+ first_mapping = dma_map_single(&cp->pdev->dev, skb->data,
+ first_len, DMA_TO_DEVICE);
+ if (dma_mapping_error(&cp->pdev->dev, first_mapping))
+ goto out_dma_error;
+
+ cp->tx_skb[entry] = skb;
+
+ for (frag = 0; frag < skb_shinfo(skb)->nr_frags; frag++) {
+ const skb_frag_t *this_frag = &skb_shinfo(skb)->frags[frag];
+ u32 len;
+ dma_addr_t mapping;
+
+ entry = NEXT_TX(entry);
+
+ len = skb_frag_size(this_frag);
+ mapping = dma_map_single(&cp->pdev->dev,
+ skb_frag_address(this_frag),
+ len, DMA_TO_DEVICE);
+ if (dma_mapping_error(&cp->pdev->dev, mapping)) {
+ unwind_tx_frag_mapping(cp, skb, first_entry, entry);
+ goto out_dma_error;
+ }
+
+ eor = (entry == (CP_TX_RING_SIZE - 1)) ? RingEnd : 0;
+
+ ctrl = opts1 | eor | len;
+
+ if (frag == skb_shinfo(skb)->nr_frags - 1)
+ ctrl |= LastFrag;
+
+ txd = &cp->tx_ring[entry];
+ txd->opts2 = opts2;
+ txd->addr = cpu_to_le64(mapping);
+ wmb();
+
+ txd->opts1 = cpu_to_le32(ctrl);
+ wmb();
+
+ cp->tx_opts[entry] = ctrl;
+ cp->tx_skb[entry] = skb;
+ }
+
+ txd = &cp->tx_ring[first_entry];
+ txd->opts2 = opts2;
+ txd->addr = cpu_to_le64(first_mapping);
+ wmb();
+
+ ctrl = opts1 | first_eor | first_len | FirstFrag;
+ txd->opts1 = cpu_to_le32(ctrl);
+ wmb();
+
+ cp->tx_opts[first_entry] = ctrl;
+ netif_dbg(cp, tx_queued, cp->dev, "tx queued, slots %d-%d, skblen %d\n",
+ first_entry, entry, skb->len);
+ }
+ cp->tx_head = NEXT_TX(entry);
+
+ netdev_sent_queue(dev, skb->len);
+ if (TX_BUFFS_AVAIL(cp) <= (MAX_SKB_FRAGS + 1))
+ netif_stop_queue(dev);
+
+out_unlock:
+ spin_unlock_irqrestore(&cp->lock, intr_flags);
+
+ cpw8(TxPoll, NormalTxPoll);
+
+ return NETDEV_TX_OK;
+out_dma_error:
+ dev_kfree_skb_any(skb);
+ cp->dev->stats.tx_dropped++;
+ goto out_unlock;
+}
+
+/* Set or clear the multicast filter for this adaptor.
+ This routine is not state sensitive and need not be SMP locked. */
+
+static void __cp_set_rx_mode (struct net_device *dev)
+{
+ struct cp_private *cp = netdev_priv(dev);
+ u32 mc_filter[2]; /* Multicast hash filter */
+ int rx_mode;
+
+ /* Note: do not reorder, GCC is clever about common statements. */
+ if (dev->flags & IFF_PROMISC) {
+ /* Unconditionally log net taps. */
+ rx_mode =
+ AcceptBroadcast | AcceptMulticast | AcceptMyPhys |
+ AcceptAllPhys;
+ mc_filter[1] = mc_filter[0] = 0xffffffff;
+ } else if ((netdev_mc_count(dev) > multicast_filter_limit) ||
+ (dev->flags & IFF_ALLMULTI)) {
+ /* Too many to filter perfectly -- accept all multicasts. */
+ rx_mode = AcceptBroadcast | AcceptMulticast | AcceptMyPhys;
+ mc_filter[1] = mc_filter[0] = 0xffffffff;
+ } else {
+ struct netdev_hw_addr *ha;
+ rx_mode = AcceptBroadcast | AcceptMyPhys;
+ mc_filter[1] = mc_filter[0] = 0;
+ netdev_for_each_mc_addr(ha, dev) {
+ int bit_nr = ether_crc(ETH_ALEN, ha->addr) >> 26;
+
+ mc_filter[bit_nr >> 5] |= 1 << (bit_nr & 31);
+ rx_mode |= AcceptMulticast;
+ }
+ }
+
+ /* We can safely update without stopping the chip. */
+ cp->rx_config = cp_rx_config | rx_mode;
+ cpw32_f(RxConfig, cp->rx_config);
+
+ cpw32_f (MAR0 + 0, mc_filter[0]);
+ cpw32_f (MAR0 + 4, mc_filter[1]);
+}
+
+static void cp_set_rx_mode (struct net_device *dev)
+{
+ unsigned long flags;
+ struct cp_private *cp = netdev_priv(dev);
+
+ spin_lock_irqsave (&cp->lock, flags);
+ __cp_set_rx_mode(dev);
+ spin_unlock_irqrestore (&cp->lock, flags);
+}
+
+static void __cp_get_stats(struct cp_private *cp)
+{
+ /* only lower 24 bits valid; write any value to clear */
+ cp->dev->stats.rx_missed_errors += (cpr32 (RxMissed) & 0xffffff);
+ cpw32 (RxMissed, 0);
+}
+
+static struct net_device_stats *cp_get_stats(struct net_device *dev)
+{
+ struct cp_private *cp = netdev_priv(dev);
+ unsigned long flags;
+
+ /* The chip only need report frame silently dropped. */
+ spin_lock_irqsave(&cp->lock, flags);
+ if (netif_running(dev) && netif_device_present(dev))
+ __cp_get_stats(cp);
+ spin_unlock_irqrestore(&cp->lock, flags);
+
+ return &dev->stats;
+}
+
+static void cp_stop_hw (struct cp_private *cp)
+{
+ cpw16(IntrStatus, ~(cpr16(IntrStatus)));
+ cpw16_f(IntrMask, 0);
+ cpw8(Cmd, 0);
+ cpw16_f(CpCmd, 0);
+ cpw16_f(IntrStatus, ~(cpr16(IntrStatus)));
+
+ cp->rx_tail = 0;
+ cp->tx_head = cp->tx_tail = 0;
+
+ netdev_reset_queue(cp->dev);
+}
+
+static void cp_reset_hw (struct cp_private *cp)
+{
+ unsigned work = 1000;
+
+ cpw8(Cmd, CmdReset);
+
+ while (work--) {
+ if (!(cpr8(Cmd) & CmdReset))
+ return;
+
+ schedule_timeout_uninterruptible(10);
+ }
+
+ netdev_err(cp->dev, "hardware reset timeout\n");
+}
+
+static inline void cp_start_hw (struct cp_private *cp)
+{
+ dma_addr_t ring_dma;
+
+ cpw16(CpCmd, cp->cpcmd);
+
+ /*
+ * These (at least TxRingAddr) need to be configured after the
+ * corresponding bits in CpCmd are enabled. Datasheet v1.6 ยง6.33
+ * (C+ Command Register) recommends that these and more be configured
+ * *after* the [RT]xEnable bits in CpCmd are set. And on some hardware
+ * it's been observed that the TxRingAddr is actually reset to garbage
+ * when C+ mode Tx is enabled in CpCmd.
+ */
+ cpw32_f(HiTxRingAddr, 0);
+ cpw32_f(HiTxRingAddr + 4, 0);
+
+ ring_dma = cp->ring_dma;
+ cpw32_f(RxRingAddr, ring_dma & 0xffffffff);
+ cpw32_f(RxRingAddr + 4, (ring_dma >> 16) >> 16);
+
+ ring_dma += sizeof(struct cp_desc) * CP_RX_RING_SIZE;
+ cpw32_f(TxRingAddr, ring_dma & 0xffffffff);
+ cpw32_f(TxRingAddr + 4, (ring_dma >> 16) >> 16);
+
+ /*
+ * Strictly speaking, the datasheet says this should be enabled
+ * *before* setting the descriptor addresses. But what, then, would
+ * prevent it from doing DMA to random unconfigured addresses?
+ * This variant appears to work fine.
+ */
+ cpw8(Cmd, RxOn | TxOn);
+
+ netdev_reset_queue(cp->dev);
+}
+
+static void cp_enable_irq(struct cp_private *cp)
+{
+ cpw16_f(IntrMask, cp_intr_mask);
+}
+
+static void cp_init_hw (struct cp_private *cp)
+{
+ struct net_device *dev = cp->dev;
+
+ cp_reset_hw(cp);
+
+ cpw8_f (Cfg9346, Cfg9346_Unlock);
+
+ /* Restore our idea of the MAC address. */
+ cpw32_f (MAC0 + 0, le32_to_cpu (*(__le32 *) (dev->dev_addr + 0)));
+ cpw32_f (MAC0 + 4, le32_to_cpu (*(__le32 *) (dev->dev_addr + 4)));
+
+ cp_start_hw(cp);
+ cpw8(TxThresh, 0x06); /* XXX convert magic num to a constant */
+
+ __cp_set_rx_mode(dev);
+ cpw32_f (TxConfig, IFG | (TX_DMA_BURST << TxDMAShift));
+
+ cpw8(Config1, cpr8(Config1) | DriverLoaded | PMEnable);
+ /* Disable Wake-on-LAN. Can be turned on with ETHTOOL_SWOL */
+ cpw8(Config3, PARMEnable);
+ cp->wol_enabled = 0;
+
+ cpw8(Config5, cpr8(Config5) & PMEStatus);
+
+ cpw16(MultiIntr, 0);
+
+ cpw8_f(Cfg9346, Cfg9346_Lock);
+}
+
+static int cp_refill_rx(struct cp_private *cp)
+{
+ struct net_device *dev = cp->dev;
+ unsigned i;
+
+ for (i = 0; i < CP_RX_RING_SIZE; i++) {
+ struct sk_buff *skb;
+ dma_addr_t mapping;
+
+ skb = netdev_alloc_skb_ip_align(dev, cp->rx_buf_sz);
+ if (!skb)
+ goto err_out;
+
+ mapping = dma_map_single(&cp->pdev->dev, skb->data,
+ cp->rx_buf_sz, DMA_FROM_DEVICE);
+ if (dma_mapping_error(&cp->pdev->dev, mapping)) {
+ kfree_skb(skb);
+ goto err_out;
+ }
+ cp->rx_skb[i] = skb;
+
+ cp->rx_ring[i].opts2 = 0;
+ cp->rx_ring[i].addr = cpu_to_le64(mapping);
+ if (i == (CP_RX_RING_SIZE - 1))
+ cp->rx_ring[i].opts1 =
+ cpu_to_le32(DescOwn | RingEnd | cp->rx_buf_sz);
+ else
+ cp->rx_ring[i].opts1 =
+ cpu_to_le32(DescOwn | cp->rx_buf_sz);
+ }
+
+ return 0;
+
+err_out:
+ cp_clean_rings(cp);
+ return -ENOMEM;
+}
+
+static void cp_init_rings_index (struct cp_private *cp)
+{
+ cp->rx_tail = 0;
+ cp->tx_head = cp->tx_tail = 0;
+}
+
+static int cp_init_rings (struct cp_private *cp)
+{
+ memset(cp->tx_ring, 0, sizeof(struct cp_desc) * CP_TX_RING_SIZE);
+ cp->tx_ring[CP_TX_RING_SIZE - 1].opts1 = cpu_to_le32(RingEnd);
+ memset(cp->tx_opts, 0, sizeof(cp->tx_opts));
+
+ cp_init_rings_index(cp);
+
+ return cp_refill_rx (cp);
+}
+
+static int cp_alloc_rings (struct cp_private *cp)
+{
+ struct device *d = &cp->pdev->dev;
+ void *mem;
+ int rc;
+
+ mem = dma_alloc_coherent(d, CP_RING_BYTES, &cp->ring_dma, GFP_KERNEL);
+ if (!mem)
+ return -ENOMEM;
+
+ cp->rx_ring = mem;
+ cp->tx_ring = &cp->rx_ring[CP_RX_RING_SIZE];
+
+ rc = cp_init_rings(cp);
+ if (rc < 0)
+ dma_free_coherent(d, CP_RING_BYTES, cp->rx_ring, cp->ring_dma);
+
+ return rc;
+}
+
+static void cp_clean_rings (struct cp_private *cp)
+{
+ struct cp_desc *desc;
+ unsigned i;
+
+ for (i = 0; i < CP_RX_RING_SIZE; i++) {
+ if (cp->rx_skb[i]) {
+ desc = cp->rx_ring + i;
+ dma_unmap_single(&cp->pdev->dev,le64_to_cpu(desc->addr),
+ cp->rx_buf_sz, DMA_FROM_DEVICE);
+ dev_kfree_skb_any(cp->rx_skb[i]);
+ }
+ }
+
+ for (i = 0; i < CP_TX_RING_SIZE; i++) {
+ if (cp->tx_skb[i]) {
+ struct sk_buff *skb = cp->tx_skb[i];
+
+ desc = cp->tx_ring + i;
+ dma_unmap_single(&cp->pdev->dev,le64_to_cpu(desc->addr),
+ le32_to_cpu(desc->opts1) & 0xffff,
+ DMA_TO_DEVICE);
+ if (le32_to_cpu(desc->opts1) & LastFrag)
+ dev_kfree_skb_any(skb);
+ cp->dev->stats.tx_dropped++;
+ }
+ }
+ netdev_reset_queue(cp->dev);
+
+ memset(cp->rx_ring, 0, sizeof(struct cp_desc) * CP_RX_RING_SIZE);
+ memset(cp->tx_ring, 0, sizeof(struct cp_desc) * CP_TX_RING_SIZE);
+ memset(cp->tx_opts, 0, sizeof(cp->tx_opts));
+
+ memset(cp->rx_skb, 0, sizeof(struct sk_buff *) * CP_RX_RING_SIZE);
+ memset(cp->tx_skb, 0, sizeof(struct sk_buff *) * CP_TX_RING_SIZE);
+}
+
+static void cp_free_rings (struct cp_private *cp)
+{
+ cp_clean_rings(cp);
+ dma_free_coherent(&cp->pdev->dev, CP_RING_BYTES, cp->rx_ring,
+ cp->ring_dma);
+ cp->rx_ring = NULL;
+ cp->tx_ring = NULL;
+}
+
+static int cp_open (struct net_device *dev)
+{
+ struct cp_private *cp = netdev_priv(dev);
+ const int irq = cp->pdev->irq;
+ int rc;
+
+ netif_dbg(cp, ifup, dev, "enabling interface\n");
+
+ rc = cp_alloc_rings(cp);
+ if (rc)
+ return rc;
+
+ napi_enable(&cp->napi);
+
+ cp_init_hw(cp);
+
+ rc = request_irq(irq, cp_interrupt, IRQF_SHARED, dev->name, dev);
+ if (rc)
+ goto err_out_hw;
+
+ cp_enable_irq(cp);
+
+ netif_carrier_off(dev);
+ mii_check_media(&cp->mii_if, netif_msg_link(cp), true);
+ netif_start_queue(dev);
+
+ return 0;
+
+err_out_hw:
+ napi_disable(&cp->napi);
+ cp_stop_hw(cp);
+ cp_free_rings(cp);
+ return rc;
+}
+
+static int cp_close (struct net_device *dev)
+{
+ struct cp_private *cp = netdev_priv(dev);
+ unsigned long flags;
+
+ napi_disable(&cp->napi);
+
+ netif_dbg(cp, ifdown, dev, "disabling interface\n");
+
+ spin_lock_irqsave(&cp->lock, flags);
+
+ netif_stop_queue(dev);
+ netif_carrier_off(dev);
+
+ cp_stop_hw(cp);
+
+ spin_unlock_irqrestore(&cp->lock, flags);
+
+ free_irq(cp->pdev->irq, dev);
+
+ cp_free_rings(cp);
+ return 0;
+}
+
+static void cp_tx_timeout(struct net_device *dev, unsigned int txqueue)
+{
+ struct cp_private *cp = netdev_priv(dev);
+ unsigned long flags;
+ int i;
+
+ netdev_warn(dev, "Transmit timeout, status %2x %4x %4x %4x\n",
+ cpr8(Cmd), cpr16(CpCmd),
+ cpr16(IntrStatus), cpr16(IntrMask));
+
+ spin_lock_irqsave(&cp->lock, flags);
+
+ netif_dbg(cp, tx_err, cp->dev, "TX ring head %d tail %d desc %x\n",
+ cp->tx_head, cp->tx_tail, cpr16(TxDmaOkLowDesc));
+ for (i = 0; i < CP_TX_RING_SIZE; i++) {
+ netif_dbg(cp, tx_err, cp->dev,
+ "TX slot %d @%p: %08x (%08x) %08x %llx %p\n",
+ i, &cp->tx_ring[i], le32_to_cpu(cp->tx_ring[i].opts1),
+ cp->tx_opts[i], le32_to_cpu(cp->tx_ring[i].opts2),
+ le64_to_cpu(cp->tx_ring[i].addr),
+ cp->tx_skb[i]);
+ }
+
+ cp_stop_hw(cp);
+ cp_clean_rings(cp);
+ cp_init_rings(cp);
+ cp_start_hw(cp);
+ __cp_set_rx_mode(dev);
+ cpw16_f(IntrMask, cp_norx_intr_mask);
+
+ netif_wake_queue(dev);
+ napi_schedule_irqoff(&cp->napi);
+
+ spin_unlock_irqrestore(&cp->lock, flags);
+}
+
+static int cp_change_mtu(struct net_device *dev, int new_mtu)
+{
+ struct cp_private *cp = netdev_priv(dev);
+
+ /* if network interface not up, no need for complexity */
+ if (!netif_running(dev)) {
+ dev->mtu = new_mtu;
+ cp_set_rxbufsize(cp); /* set new rx buf size */
+ return 0;
+ }
+
+ /* network IS up, close it, reset MTU, and come up again. */
+ cp_close(dev);
+ dev->mtu = new_mtu;
+ cp_set_rxbufsize(cp);
+ return cp_open(dev);
+}
+
+static const char mii_2_8139_map[8] = {
+ BasicModeCtrl,
+ BasicModeStatus,
+ 0,
+ 0,
+ NWayAdvert,
+ NWayLPAR,
+ NWayExpansion,
+ 0
+};
+
+static int mdio_read(struct net_device *dev, int phy_id, int location)
+{
+ struct cp_private *cp = netdev_priv(dev);
+
+ return location < 8 && mii_2_8139_map[location] ?
+ readw(cp->regs + mii_2_8139_map[location]) : 0;
+}
+
+
+static void mdio_write(struct net_device *dev, int phy_id, int location,
+ int value)
+{
+ struct cp_private *cp = netdev_priv(dev);
+
+ if (location == 0) {
+ cpw8(Cfg9346, Cfg9346_Unlock);
+ cpw16(BasicModeCtrl, value);
+ cpw8(Cfg9346, Cfg9346_Lock);
+ } else if (location < 8 && mii_2_8139_map[location])
+ cpw16(mii_2_8139_map[location], value);
+}
+
+/* Set the ethtool Wake-on-LAN settings */
+static int netdev_set_wol (struct cp_private *cp,
+ const struct ethtool_wolinfo *wol)
+{
+ u8 options;
+
+ options = cpr8 (Config3) & ~(LinkUp | MagicPacket);
+ /* If WOL is being disabled, no need for complexity */
+ if (wol->wolopts) {
+ if (wol->wolopts & WAKE_PHY) options |= LinkUp;
+ if (wol->wolopts & WAKE_MAGIC) options |= MagicPacket;
+ }
+
+ cpw8 (Cfg9346, Cfg9346_Unlock);
+ cpw8 (Config3, options);
+ cpw8 (Cfg9346, Cfg9346_Lock);
+
+ options = 0; /* Paranoia setting */
+ options = cpr8 (Config5) & ~(UWF | MWF | BWF);
+ /* If WOL is being disabled, no need for complexity */
+ if (wol->wolopts) {
+ if (wol->wolopts & WAKE_UCAST) options |= UWF;
+ if (wol->wolopts & WAKE_BCAST) options |= BWF;
+ if (wol->wolopts & WAKE_MCAST) options |= MWF;
+ }
+
+ cpw8 (Config5, options);
+
+ cp->wol_enabled = (wol->wolopts) ? 1 : 0;
+
+ return 0;
+}
+
+/* Get the ethtool Wake-on-LAN settings */
+static void netdev_get_wol (struct cp_private *cp,
+ struct ethtool_wolinfo *wol)
+{
+ u8 options;
+
+ wol->wolopts = 0; /* Start from scratch */
+ wol->supported = WAKE_PHY | WAKE_BCAST | WAKE_MAGIC |
+ WAKE_MCAST | WAKE_UCAST;
+ /* We don't need to go on if WOL is disabled */
+ if (!cp->wol_enabled) return;
+
+ options = cpr8 (Config3);
+ if (options & LinkUp) wol->wolopts |= WAKE_PHY;
+ if (options & MagicPacket) wol->wolopts |= WAKE_MAGIC;
+
+ options = 0; /* Paranoia setting */
+ options = cpr8 (Config5);
+ if (options & UWF) wol->wolopts |= WAKE_UCAST;
+ if (options & BWF) wol->wolopts |= WAKE_BCAST;
+ if (options & MWF) wol->wolopts |= WAKE_MCAST;
+}
+
+static void cp_get_drvinfo (struct net_device *dev, struct ethtool_drvinfo *info)
+{
+ struct cp_private *cp = 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(cp->pdev), sizeof(info->bus_info));
+}
+
+static void cp_get_ringparam(struct net_device *dev,
+ struct ethtool_ringparam *ring,
+ struct kernel_ethtool_ringparam *kernel_ring,
+ struct netlink_ext_ack *extack)
+{
+ ring->rx_max_pending = CP_RX_RING_SIZE;
+ ring->tx_max_pending = CP_TX_RING_SIZE;
+ ring->rx_pending = CP_RX_RING_SIZE;
+ ring->tx_pending = CP_TX_RING_SIZE;
+}
+
+static int cp_get_regs_len(struct net_device *dev)
+{
+ return CP_REGS_SIZE;
+}
+
+static int cp_get_sset_count (struct net_device *dev, int sset)
+{
+ switch (sset) {
+ case ETH_SS_STATS:
+ return CP_NUM_STATS;
+ default:
+ return -EOPNOTSUPP;
+ }
+}
+
+static int cp_get_link_ksettings(struct net_device *dev,
+ struct ethtool_link_ksettings *cmd)
+{
+ struct cp_private *cp = netdev_priv(dev);
+ unsigned long flags;
+
+ spin_lock_irqsave(&cp->lock, flags);
+ mii_ethtool_get_link_ksettings(&cp->mii_if, cmd);
+ spin_unlock_irqrestore(&cp->lock, flags);
+
+ return 0;
+}
+
+static int cp_set_link_ksettings(struct net_device *dev,
+ const struct ethtool_link_ksettings *cmd)
+{
+ struct cp_private *cp = netdev_priv(dev);
+ int rc;
+ unsigned long flags;
+
+ spin_lock_irqsave(&cp->lock, flags);
+ rc = mii_ethtool_set_link_ksettings(&cp->mii_if, cmd);
+ spin_unlock_irqrestore(&cp->lock, flags);
+
+ return rc;
+}
+
+static int cp_nway_reset(struct net_device *dev)
+{
+ struct cp_private *cp = netdev_priv(dev);
+ return mii_nway_restart(&cp->mii_if);
+}
+
+static u32 cp_get_msglevel(struct net_device *dev)
+{
+ struct cp_private *cp = netdev_priv(dev);
+ return cp->msg_enable;
+}
+
+static void cp_set_msglevel(struct net_device *dev, u32 value)
+{
+ struct cp_private *cp = netdev_priv(dev);
+ cp->msg_enable = value;
+}
+
+static int cp_set_features(struct net_device *dev, netdev_features_t features)
+{
+ struct cp_private *cp = netdev_priv(dev);
+ unsigned long flags;
+
+ if (!((dev->features ^ features) & NETIF_F_RXCSUM))
+ return 0;
+
+ spin_lock_irqsave(&cp->lock, flags);
+
+ if (features & NETIF_F_RXCSUM)
+ cp->cpcmd |= RxChkSum;
+ else
+ cp->cpcmd &= ~RxChkSum;
+
+ if (features & NETIF_F_HW_VLAN_CTAG_RX)
+ cp->cpcmd |= RxVlanOn;
+ else
+ cp->cpcmd &= ~RxVlanOn;
+
+ cpw16_f(CpCmd, cp->cpcmd);
+ spin_unlock_irqrestore(&cp->lock, flags);
+
+ return 0;
+}
+
+static void cp_get_regs(struct net_device *dev, struct ethtool_regs *regs,
+ void *p)
+{
+ struct cp_private *cp = netdev_priv(dev);
+ unsigned long flags;
+
+ if (regs->len < CP_REGS_SIZE)
+ return /* -EINVAL */;
+
+ regs->version = CP_REGS_VER;
+
+ spin_lock_irqsave(&cp->lock, flags);
+ memcpy_fromio(p, cp->regs, CP_REGS_SIZE);
+ spin_unlock_irqrestore(&cp->lock, flags);
+}
+
+static void cp_get_wol (struct net_device *dev, struct ethtool_wolinfo *wol)
+{
+ struct cp_private *cp = netdev_priv(dev);
+ unsigned long flags;
+
+ spin_lock_irqsave (&cp->lock, flags);
+ netdev_get_wol (cp, wol);
+ spin_unlock_irqrestore (&cp->lock, flags);
+}
+
+static int cp_set_wol (struct net_device *dev, struct ethtool_wolinfo *wol)
+{
+ struct cp_private *cp = netdev_priv(dev);
+ unsigned long flags;
+ int rc;
+
+ spin_lock_irqsave (&cp->lock, flags);
+ rc = netdev_set_wol (cp, wol);
+ spin_unlock_irqrestore (&cp->lock, flags);
+
+ return rc;
+}
+
+static void cp_get_strings (struct net_device *dev, u32 stringset, u8 *buf)
+{
+ switch (stringset) {
+ case ETH_SS_STATS:
+ memcpy(buf, &ethtool_stats_keys, sizeof(ethtool_stats_keys));
+ break;
+ default:
+ BUG();
+ break;
+ }
+}
+
+static void cp_get_ethtool_stats (struct net_device *dev,
+ struct ethtool_stats *estats, u64 *tmp_stats)
+{
+ struct cp_private *cp = netdev_priv(dev);
+ struct cp_dma_stats *nic_stats;
+ dma_addr_t dma;
+ int i;
+
+ nic_stats = dma_alloc_coherent(&cp->pdev->dev, sizeof(*nic_stats),
+ &dma, GFP_KERNEL);
+ if (!nic_stats)
+ return;
+
+ /* begin NIC statistics dump */
+ cpw32(StatsAddr + 4, (u64)dma >> 32);
+ cpw32(StatsAddr, ((u64)dma & DMA_BIT_MASK(32)) | DumpStats);
+ cpr32(StatsAddr);
+
+ for (i = 0; i < 1000; i++) {
+ if ((cpr32(StatsAddr) & DumpStats) == 0)
+ break;
+ udelay(10);
+ }
+ cpw32(StatsAddr, 0);
+ cpw32(StatsAddr + 4, 0);
+ cpr32(StatsAddr);
+
+ i = 0;
+ tmp_stats[i++] = le64_to_cpu(nic_stats->tx_ok);
+ tmp_stats[i++] = le64_to_cpu(nic_stats->rx_ok);
+ tmp_stats[i++] = le64_to_cpu(nic_stats->tx_err);
+ tmp_stats[i++] = le32_to_cpu(nic_stats->rx_err);
+ tmp_stats[i++] = le16_to_cpu(nic_stats->rx_fifo);
+ tmp_stats[i++] = le16_to_cpu(nic_stats->frame_align);
+ tmp_stats[i++] = le32_to_cpu(nic_stats->tx_ok_1col);
+ tmp_stats[i++] = le32_to_cpu(nic_stats->tx_ok_mcol);
+ tmp_stats[i++] = le64_to_cpu(nic_stats->rx_ok_phys);
+ tmp_stats[i++] = le64_to_cpu(nic_stats->rx_ok_bcast);
+ tmp_stats[i++] = le32_to_cpu(nic_stats->rx_ok_mcast);
+ tmp_stats[i++] = le16_to_cpu(nic_stats->tx_abort);
+ tmp_stats[i++] = le16_to_cpu(nic_stats->tx_underrun);
+ tmp_stats[i++] = cp->cp_stats.rx_frags;
+ BUG_ON(i != CP_NUM_STATS);
+
+ dma_free_coherent(&cp->pdev->dev, sizeof(*nic_stats), nic_stats, dma);
+}
+
+static const struct ethtool_ops cp_ethtool_ops = {
+ .get_drvinfo = cp_get_drvinfo,
+ .get_regs_len = cp_get_regs_len,
+ .get_sset_count = cp_get_sset_count,
+ .nway_reset = cp_nway_reset,
+ .get_link = ethtool_op_get_link,
+ .get_msglevel = cp_get_msglevel,
+ .set_msglevel = cp_set_msglevel,
+ .get_regs = cp_get_regs,
+ .get_wol = cp_get_wol,
+ .set_wol = cp_set_wol,
+ .get_strings = cp_get_strings,
+ .get_ethtool_stats = cp_get_ethtool_stats,
+ .get_eeprom_len = cp_get_eeprom_len,
+ .get_eeprom = cp_get_eeprom,
+ .set_eeprom = cp_set_eeprom,
+ .get_ringparam = cp_get_ringparam,
+ .get_link_ksettings = cp_get_link_ksettings,
+ .set_link_ksettings = cp_set_link_ksettings,
+};
+
+static int cp_ioctl (struct net_device *dev, struct ifreq *rq, int cmd)
+{
+ struct cp_private *cp = netdev_priv(dev);
+ int rc;
+ unsigned long flags;
+
+ if (!netif_running(dev))
+ return -EINVAL;
+
+ spin_lock_irqsave(&cp->lock, flags);
+ rc = generic_mii_ioctl(&cp->mii_if, if_mii(rq), cmd, NULL);
+ spin_unlock_irqrestore(&cp->lock, flags);
+ return rc;
+}
+
+static int cp_set_mac_address(struct net_device *dev, void *p)
+{
+ struct cp_private *cp = netdev_priv(dev);
+ struct sockaddr *addr = p;
+
+ if (!is_valid_ether_addr(addr->sa_data))
+ return -EADDRNOTAVAIL;
+
+ eth_hw_addr_set(dev, addr->sa_data);
+
+ spin_lock_irq(&cp->lock);
+
+ cpw8_f(Cfg9346, Cfg9346_Unlock);
+ cpw32_f(MAC0 + 0, le32_to_cpu (*(__le32 *) (dev->dev_addr + 0)));
+ cpw32_f(MAC0 + 4, le32_to_cpu (*(__le32 *) (dev->dev_addr + 4)));
+ cpw8_f(Cfg9346, Cfg9346_Lock);
+
+ spin_unlock_irq(&cp->lock);
+
+ return 0;
+}
+
+/* Serial EEPROM section. */
+
+/* EEPROM_Ctrl bits. */
+#define EE_SHIFT_CLK 0x04 /* EEPROM shift clock. */
+#define EE_CS 0x08 /* EEPROM chip select. */
+#define EE_DATA_WRITE 0x02 /* EEPROM chip data in. */
+#define EE_WRITE_0 0x00
+#define EE_WRITE_1 0x02
+#define EE_DATA_READ 0x01 /* EEPROM chip data out. */
+#define EE_ENB (0x80 | EE_CS)
+
+/* Delay between EEPROM clock transitions.
+ No extra delay is needed with 33Mhz PCI, but 66Mhz may change this.
+ */
+
+#define eeprom_delay() readb(ee_addr)
+
+/* The EEPROM commands include the alway-set leading bit. */
+#define EE_EXTEND_CMD (4)
+#define EE_WRITE_CMD (5)
+#define EE_READ_CMD (6)
+#define EE_ERASE_CMD (7)
+
+#define EE_EWDS_ADDR (0)
+#define EE_WRAL_ADDR (1)
+#define EE_ERAL_ADDR (2)
+#define EE_EWEN_ADDR (3)
+
+#define CP_EEPROM_MAGIC PCI_DEVICE_ID_REALTEK_8139
+
+static void eeprom_cmd_start(void __iomem *ee_addr)
+{
+ writeb (EE_ENB & ~EE_CS, ee_addr);
+ writeb (EE_ENB, ee_addr);
+ eeprom_delay ();
+}
+
+static void eeprom_cmd(void __iomem *ee_addr, int cmd, int cmd_len)
+{
+ int i;
+
+ /* Shift the command bits out. */
+ for (i = cmd_len - 1; i >= 0; i--) {
+ int dataval = (cmd & (1 << i)) ? EE_DATA_WRITE : 0;
+ writeb (EE_ENB | dataval, ee_addr);
+ eeprom_delay ();
+ writeb (EE_ENB | dataval | EE_SHIFT_CLK, ee_addr);
+ eeprom_delay ();
+ }
+ writeb (EE_ENB, ee_addr);
+ eeprom_delay ();
+}
+
+static void eeprom_cmd_end(void __iomem *ee_addr)
+{
+ writeb(0, ee_addr);
+ eeprom_delay ();
+}
+
+static void eeprom_extend_cmd(void __iomem *ee_addr, int extend_cmd,
+ int addr_len)
+{
+ int cmd = (EE_EXTEND_CMD << addr_len) | (extend_cmd << (addr_len - 2));
+
+ eeprom_cmd_start(ee_addr);
+ eeprom_cmd(ee_addr, cmd, 3 + addr_len);
+ eeprom_cmd_end(ee_addr);
+}
+
+static u16 read_eeprom (void __iomem *ioaddr, int location, int addr_len)
+{
+ int i;
+ u16 retval = 0;
+ void __iomem *ee_addr = ioaddr + Cfg9346;
+ int read_cmd = location | (EE_READ_CMD << addr_len);
+
+ eeprom_cmd_start(ee_addr);
+ eeprom_cmd(ee_addr, read_cmd, 3 + addr_len);
+
+ for (i = 16; i > 0; i--) {
+ writeb (EE_ENB | EE_SHIFT_CLK, ee_addr);
+ eeprom_delay ();
+ retval =
+ (retval << 1) | ((readb (ee_addr) & EE_DATA_READ) ? 1 :
+ 0);
+ writeb (EE_ENB, ee_addr);
+ eeprom_delay ();
+ }
+
+ eeprom_cmd_end(ee_addr);
+
+ return retval;
+}
+
+static void write_eeprom(void __iomem *ioaddr, int location, u16 val,
+ int addr_len)
+{
+ int i;
+ void __iomem *ee_addr = ioaddr + Cfg9346;
+ int write_cmd = location | (EE_WRITE_CMD << addr_len);
+
+ eeprom_extend_cmd(ee_addr, EE_EWEN_ADDR, addr_len);
+
+ eeprom_cmd_start(ee_addr);
+ eeprom_cmd(ee_addr, write_cmd, 3 + addr_len);
+ eeprom_cmd(ee_addr, val, 16);
+ eeprom_cmd_end(ee_addr);
+
+ eeprom_cmd_start(ee_addr);
+ for (i = 0; i < 20000; i++)
+ if (readb(ee_addr) & EE_DATA_READ)
+ break;
+ eeprom_cmd_end(ee_addr);
+
+ eeprom_extend_cmd(ee_addr, EE_EWDS_ADDR, addr_len);
+}
+
+static int cp_get_eeprom_len(struct net_device *dev)
+{
+ struct cp_private *cp = netdev_priv(dev);
+ int size;
+
+ spin_lock_irq(&cp->lock);
+ size = read_eeprom(cp->regs, 0, 8) == 0x8129 ? 256 : 128;
+ spin_unlock_irq(&cp->lock);
+
+ return size;
+}
+
+static int cp_get_eeprom(struct net_device *dev,
+ struct ethtool_eeprom *eeprom, u8 *data)
+{
+ struct cp_private *cp = netdev_priv(dev);
+ unsigned int addr_len;
+ u16 val;
+ u32 offset = eeprom->offset >> 1;
+ u32 len = eeprom->len;
+ u32 i = 0;
+
+ eeprom->magic = CP_EEPROM_MAGIC;
+
+ spin_lock_irq(&cp->lock);
+
+ addr_len = read_eeprom(cp->regs, 0, 8) == 0x8129 ? 8 : 6;
+
+ if (eeprom->offset & 1) {
+ val = read_eeprom(cp->regs, offset, addr_len);
+ data[i++] = (u8)(val >> 8);
+ offset++;
+ }
+
+ while (i < len - 1) {
+ val = read_eeprom(cp->regs, offset, addr_len);
+ data[i++] = (u8)val;
+ data[i++] = (u8)(val >> 8);
+ offset++;
+ }
+
+ if (i < len) {
+ val = read_eeprom(cp->regs, offset, addr_len);
+ data[i] = (u8)val;
+ }
+
+ spin_unlock_irq(&cp->lock);
+ return 0;
+}
+
+static int cp_set_eeprom(struct net_device *dev,
+ struct ethtool_eeprom *eeprom, u8 *data)
+{
+ struct cp_private *cp = netdev_priv(dev);
+ unsigned int addr_len;
+ u16 val;
+ u32 offset = eeprom->offset >> 1;
+ u32 len = eeprom->len;
+ u32 i = 0;
+
+ if (eeprom->magic != CP_EEPROM_MAGIC)
+ return -EINVAL;
+
+ spin_lock_irq(&cp->lock);
+
+ addr_len = read_eeprom(cp->regs, 0, 8) == 0x8129 ? 8 : 6;
+
+ if (eeprom->offset & 1) {
+ val = read_eeprom(cp->regs, offset, addr_len) & 0xff;
+ val |= (u16)data[i++] << 8;
+ write_eeprom(cp->regs, offset, val, addr_len);
+ offset++;
+ }
+
+ while (i < len - 1) {
+ val = (u16)data[i++];
+ val |= (u16)data[i++] << 8;
+ write_eeprom(cp->regs, offset, val, addr_len);
+ offset++;
+ }
+
+ if (i < len) {
+ val = read_eeprom(cp->regs, offset, addr_len) & 0xff00;
+ val |= (u16)data[i];
+ write_eeprom(cp->regs, offset, val, addr_len);
+ }
+
+ spin_unlock_irq(&cp->lock);
+ return 0;
+}
+
+/* Put the board into D3cold state and wait for WakeUp signal */
+static void cp_set_d3_state (struct cp_private *cp)
+{
+ pci_enable_wake(cp->pdev, PCI_D0, 1); /* Enable PME# generation */
+ pci_set_power_state (cp->pdev, PCI_D3hot);
+}
+
+static netdev_features_t cp_features_check(struct sk_buff *skb,
+ struct net_device *dev,
+ netdev_features_t features)
+{
+ if (skb_shinfo(skb)->gso_size > MSSMask)
+ features &= ~NETIF_F_TSO;
+
+ return vlan_features_check(skb, features);
+}
+static const struct net_device_ops cp_netdev_ops = {
+ .ndo_open = cp_open,
+ .ndo_stop = cp_close,
+ .ndo_validate_addr = eth_validate_addr,
+ .ndo_set_mac_address = cp_set_mac_address,
+ .ndo_set_rx_mode = cp_set_rx_mode,
+ .ndo_get_stats = cp_get_stats,
+ .ndo_eth_ioctl = cp_ioctl,
+ .ndo_start_xmit = cp_start_xmit,
+ .ndo_tx_timeout = cp_tx_timeout,
+ .ndo_set_features = cp_set_features,
+ .ndo_change_mtu = cp_change_mtu,
+ .ndo_features_check = cp_features_check,
+
+#ifdef CONFIG_NET_POLL_CONTROLLER
+ .ndo_poll_controller = cp_poll_controller,
+#endif
+};
+
+static int cp_init_one (struct pci_dev *pdev, const struct pci_device_id *ent)
+{
+ struct net_device *dev;
+ struct cp_private *cp;
+ int rc;
+ void __iomem *regs;
+ resource_size_t pciaddr;
+ unsigned int addr_len, i, pci_using_dac;
+ __le16 addr[ETH_ALEN / 2];
+
+ pr_info_once("%s", version);
+
+ if (pdev->vendor == PCI_VENDOR_ID_REALTEK &&
+ pdev->device == PCI_DEVICE_ID_REALTEK_8139 && pdev->revision < 0x20) {
+ dev_info(&pdev->dev,
+ "This (id %04x:%04x rev %02x) is not an 8139C+ compatible chip, use 8139too\n",
+ pdev->vendor, pdev->device, pdev->revision);
+ return -ENODEV;
+ }
+
+ dev = alloc_etherdev(sizeof(struct cp_private));
+ if (!dev)
+ return -ENOMEM;
+ SET_NETDEV_DEV(dev, &pdev->dev);
+
+ cp = netdev_priv(dev);
+ cp->pdev = pdev;
+ cp->dev = dev;
+ cp->msg_enable = (debug < 0 ? CP_DEF_MSG_ENABLE : debug);
+ spin_lock_init (&cp->lock);
+ cp->mii_if.dev = dev;
+ cp->mii_if.mdio_read = mdio_read;
+ cp->mii_if.mdio_write = mdio_write;
+ cp->mii_if.phy_id = CP_INTERNAL_PHY;
+ cp->mii_if.phy_id_mask = 0x1f;
+ cp->mii_if.reg_num_mask = 0x1f;
+ cp_set_rxbufsize(cp);
+
+ rc = pci_enable_device(pdev);
+ if (rc)
+ goto err_out_free;
+
+ rc = pci_set_mwi(pdev);
+ if (rc)
+ goto err_out_disable;
+
+ rc = pci_request_regions(pdev, DRV_NAME);
+ if (rc)
+ goto err_out_mwi;
+
+ pciaddr = pci_resource_start(pdev, 1);
+ if (!pciaddr) {
+ rc = -EIO;
+ dev_err(&pdev->dev, "no MMIO resource\n");
+ goto err_out_res;
+ }
+ if (pci_resource_len(pdev, 1) < CP_REGS_SIZE) {
+ rc = -EIO;
+ dev_err(&pdev->dev, "MMIO resource (%llx) too small\n",
+ (unsigned long long)pci_resource_len(pdev, 1));
+ goto err_out_res;
+ }
+
+ /* Configure DMA attributes. */
+ if ((sizeof(dma_addr_t) > 4) &&
+ !dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64))) {
+ pci_using_dac = 1;
+ } else {
+ pci_using_dac = 0;
+
+ rc = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));
+ if (rc) {
+ dev_err(&pdev->dev,
+ "No usable DMA configuration, aborting\n");
+ goto err_out_res;
+ }
+ }
+
+ cp->cpcmd = (pci_using_dac ? PCIDAC : 0) |
+ PCIMulRW | RxChkSum | CpRxOn | CpTxOn;
+
+ dev->features |= NETIF_F_RXCSUM;
+ dev->hw_features |= NETIF_F_RXCSUM;
+
+ regs = ioremap(pciaddr, CP_REGS_SIZE);
+ if (!regs) {
+ rc = -EIO;
+ dev_err(&pdev->dev, "Cannot map PCI MMIO (%Lx@%Lx)\n",
+ (unsigned long long)pci_resource_len(pdev, 1),
+ (unsigned long long)pciaddr);
+ goto err_out_res;
+ }
+ cp->regs = regs;
+
+ cp_stop_hw(cp);
+
+ /* read MAC address from EEPROM */
+ addr_len = read_eeprom (regs, 0, 8) == 0x8129 ? 8 : 6;
+ for (i = 0; i < 3; i++)
+ addr[i] = cpu_to_le16(read_eeprom (regs, i + 7, addr_len));
+ eth_hw_addr_set(dev, (u8 *)addr);
+
+ dev->netdev_ops = &cp_netdev_ops;
+ netif_napi_add_weight(dev, &cp->napi, cp_rx_poll, 16);
+ dev->ethtool_ops = &cp_ethtool_ops;
+ dev->watchdog_timeo = TX_TIMEOUT;
+
+ dev->features |= NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_TSO |
+ NETIF_F_HW_VLAN_CTAG_TX | NETIF_F_HW_VLAN_CTAG_RX;
+
+ if (pci_using_dac)
+ dev->features |= NETIF_F_HIGHDMA;
+
+ dev->hw_features |= NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_TSO |
+ NETIF_F_HW_VLAN_CTAG_TX | NETIF_F_HW_VLAN_CTAG_RX;
+ dev->vlan_features = NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_TSO |
+ NETIF_F_HIGHDMA;
+
+ /* MTU range: 60 - 4096 */
+ dev->min_mtu = CP_MIN_MTU;
+ dev->max_mtu = CP_MAX_MTU;
+
+ rc = register_netdev(dev);
+ if (rc)
+ goto err_out_iomap;
+
+ netdev_info(dev, "RTL-8139C+ at 0x%p, %pM, IRQ %d\n",
+ regs, dev->dev_addr, pdev->irq);
+
+ pci_set_drvdata(pdev, dev);
+
+ /* enable busmastering and memory-write-invalidate */
+ pci_set_master(pdev);
+
+ if (cp->wol_enabled)
+ cp_set_d3_state (cp);
+
+ return 0;
+
+err_out_iomap:
+ iounmap(regs);
+err_out_res:
+ pci_release_regions(pdev);
+err_out_mwi:
+ pci_clear_mwi(pdev);
+err_out_disable:
+ pci_disable_device(pdev);
+err_out_free:
+ free_netdev(dev);
+ return rc;
+}
+
+static void cp_remove_one (struct pci_dev *pdev)
+{
+ struct net_device *dev = pci_get_drvdata(pdev);
+ struct cp_private *cp = netdev_priv(dev);
+
+ unregister_netdev(dev);
+ iounmap(cp->regs);
+ if (cp->wol_enabled)
+ pci_set_power_state (pdev, PCI_D0);
+ pci_release_regions(pdev);
+ pci_clear_mwi(pdev);
+ pci_disable_device(pdev);
+ free_netdev(dev);
+}
+
+static int __maybe_unused cp_suspend(struct device *device)
+{
+ struct net_device *dev = dev_get_drvdata(device);
+ struct cp_private *cp = netdev_priv(dev);
+ unsigned long flags;
+
+ if (!netif_running(dev))
+ return 0;
+
+ netif_device_detach (dev);
+ netif_stop_queue (dev);
+
+ spin_lock_irqsave (&cp->lock, flags);
+
+ /* Disable Rx and Tx */
+ cpw16 (IntrMask, 0);
+ cpw8 (Cmd, cpr8 (Cmd) & (~RxOn | ~TxOn));
+
+ spin_unlock_irqrestore (&cp->lock, flags);
+
+ device_set_wakeup_enable(device, cp->wol_enabled);
+
+ return 0;
+}
+
+static int __maybe_unused cp_resume(struct device *device)
+{
+ struct net_device *dev = dev_get_drvdata(device);
+ struct cp_private *cp = netdev_priv(dev);
+ unsigned long flags;
+
+ if (!netif_running(dev))
+ return 0;
+
+ netif_device_attach (dev);
+
+ /* FIXME: sh*t may happen if the Rx ring buffer is depleted */
+ cp_init_rings_index (cp);
+ cp_init_hw (cp);
+ cp_enable_irq(cp);
+ netif_start_queue (dev);
+
+ spin_lock_irqsave (&cp->lock, flags);
+
+ mii_check_media(&cp->mii_if, netif_msg_link(cp), false);
+
+ spin_unlock_irqrestore (&cp->lock, flags);
+
+ return 0;
+}
+
+static const struct pci_device_id cp_pci_tbl[] = {
+ { PCI_DEVICE(PCI_VENDOR_ID_REALTEK, PCI_DEVICE_ID_REALTEK_8139), },
+ { PCI_DEVICE(PCI_VENDOR_ID_TTTECH, PCI_DEVICE_ID_TTTECH_MC322), },
+ { },
+};
+MODULE_DEVICE_TABLE(pci, cp_pci_tbl);
+
+static SIMPLE_DEV_PM_OPS(cp_pm_ops, cp_suspend, cp_resume);
+
+static struct pci_driver cp_driver = {
+ .name = DRV_NAME,
+ .id_table = cp_pci_tbl,
+ .probe = cp_init_one,
+ .remove = cp_remove_one,
+ .driver.pm = &cp_pm_ops,
+};
+
+module_pci_driver(cp_driver);
diff --git a/drivers/net/ethernet/realtek/8139too.c b/drivers/net/ethernet/realtek/8139too.c
new file mode 100644
index 000000000..469e2e229
--- /dev/null
+++ b/drivers/net/ethernet/realtek/8139too.c
@@ -0,0 +1,2678 @@
+/*
+
+ 8139too.c: A RealTek RTL-8139 Fast Ethernet driver for Linux.
+
+ Maintained by Jeff Garzik <jgarzik@pobox.com>
+ Copyright 2000-2002 Jeff Garzik
+
+ Much code comes from Donald Becker's rtl8139.c driver,
+ versions 1.13 and older. This driver was originally based
+ on rtl8139.c version 1.07. Header of rtl8139.c version 1.13:
+
+ -----<snip>-----
+
+ Written 1997-2001 by Donald Becker.
+ This software may be used and distributed according to the
+ terms of the GNU General Public License (GPL), incorporated
+ herein by reference. Drivers based on or derived from this
+ code fall under the GPL and must retain the authorship,
+ copyright and license notice. This file is not a complete
+ program and may only be used when the entire operating
+ system is licensed under the GPL.
+
+ This driver is for boards based on the RTL8129 and RTL8139
+ PCI ethernet chips.
+
+ The author may be reached as becker@scyld.com, or C/O Scyld
+ Computing Corporation 410 Severn Ave., Suite 210 Annapolis
+ MD 21403
+
+ Support and updates available at
+ http://www.scyld.com/network/rtl8139.html
+
+ Twister-tuning table provided by Kinston
+ <shangh@realtek.com.tw>.
+
+ -----<snip>-----
+
+ This software may be used and distributed according to the terms
+ of the GNU General Public License, incorporated herein by reference.
+
+ Contributors:
+
+ Donald Becker - he wrote the original driver, kudos to him!
+ (but please don't e-mail him for support, this isn't his driver)
+
+ Tigran Aivazian - bug fixes, skbuff free cleanup
+
+ Martin Mares - suggestions for PCI cleanup
+
+ David S. Miller - PCI DMA and softnet updates
+
+ Ernst Gill - fixes ported from BSD driver
+
+ Daniel Kobras - identified specific locations of
+ posted MMIO write bugginess
+
+ Gerard Sharp - bug fix, testing and feedback
+
+ David Ford - Rx ring wrap fix
+
+ Dan DeMaggio - swapped RTL8139 cards with me, and allowed me
+ to find and fix a crucial bug on older chipsets.
+
+ Donald Becker/Chris Butterworth/Marcus Westergren -
+ Noticed various Rx packet size-related buglets.
+
+ Santiago Garcia Mantinan - testing and feedback
+
+ Jens David - 2.2.x kernel backports
+
+ Martin Dennett - incredibly helpful insight on undocumented
+ features of the 8139 chips
+
+ Jean-Jacques Michel - bug fix
+
+ Tobias Ringstrรถm - Rx interrupt status checking suggestion
+
+ Andrew Morton - Clear blocked signals, avoid
+ buffer overrun setting current->comm.
+
+ Kalle Olavi Niemitalo - Wake-on-LAN ioctls
+
+ Robert Kuebel - Save kernel thread from dying on any signal.
+
+ Submitting bug reports:
+
+ "rtl8139-diag -mmmaaavvveefN" output
+ enable RTL8139_DEBUG below, and look at 'dmesg' or kernel log
+
+*/
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
+#define DRV_NAME "8139too"
+#define DRV_VERSION "0.9.28"
+
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/compiler.h>
+#include <linux/pci.h>
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/netdevice.h>
+#include <linux/etherdevice.h>
+#include <linux/rtnetlink.h>
+#include <linux/delay.h>
+#include <linux/ethtool.h>
+#include <linux/mii.h>
+#include <linux/completion.h>
+#include <linux/crc32.h>
+#include <linux/io.h>
+#include <linux/uaccess.h>
+#include <linux/gfp.h>
+#include <linux/if_vlan.h>
+#include <asm/irq.h>
+
+#define RTL8139_DRIVER_NAME DRV_NAME " Fast Ethernet driver " DRV_VERSION
+
+/* Default Message level */
+#define RTL8139_DEF_MSG_ENABLE (NETIF_MSG_DRV | \
+ NETIF_MSG_PROBE | \
+ NETIF_MSG_LINK)
+
+
+/* define to 1, 2 or 3 to enable copious debugging info */
+#define RTL8139_DEBUG 0
+
+/* define to 1 to disable lightweight runtime debugging checks */
+#undef RTL8139_NDEBUG
+
+
+#ifdef RTL8139_NDEBUG
+# define assert(expr) do {} while (0)
+#else
+# define assert(expr) \
+ if (unlikely(!(expr))) { \
+ pr_err("Assertion failed! %s,%s,%s,line=%d\n", \
+ #expr, __FILE__, __func__, __LINE__); \
+ }
+#endif
+
+
+/* A few user-configurable values. */
+/* media options */
+#define MAX_UNITS 8
+static int media[MAX_UNITS] = {-1, -1, -1, -1, -1, -1, -1, -1};
+static int full_duplex[MAX_UNITS] = {-1, -1, -1, -1, -1, -1, -1, -1};
+
+/* Whether to use MMIO or PIO. Default to MMIO. */
+#ifdef CONFIG_8139TOO_PIO
+static bool use_io = true;
+#else
+static bool use_io = false;
+#endif
+
+/* Maximum number of multicast addresses to filter (vs. Rx-all-multicast).
+ The RTL chips use a 64 element hash table based on the Ethernet CRC. */
+static int multicast_filter_limit = 32;
+
+/* bitmapped message enable number */
+static int debug = -1;
+
+/*
+ * Receive ring size
+ * Warning: 64K ring has hardware issues and may lock up.
+ */
+#if defined(CONFIG_SH_DREAMCAST)
+#define RX_BUF_IDX 0 /* 8K ring */
+#else
+#define RX_BUF_IDX 2 /* 32K ring */
+#endif
+#define RX_BUF_LEN (8192 << RX_BUF_IDX)
+#define RX_BUF_PAD 16
+#define RX_BUF_WRAP_PAD 2048 /* spare padding to handle lack of packet wrap */
+
+#if RX_BUF_LEN == 65536
+#define RX_BUF_TOT_LEN RX_BUF_LEN
+#else
+#define RX_BUF_TOT_LEN (RX_BUF_LEN + RX_BUF_PAD + RX_BUF_WRAP_PAD)
+#endif
+
+/* Number of Tx descriptor registers. */
+#define NUM_TX_DESC 4
+
+/* max supported ethernet frame size -- must be at least (dev->mtu+18+4).*/
+#define MAX_ETH_FRAME_SIZE 1792
+
+/* max supported payload size */
+#define MAX_ETH_DATA_SIZE (MAX_ETH_FRAME_SIZE - VLAN_ETH_HLEN - ETH_FCS_LEN)
+
+/* Size of the Tx bounce buffers -- must be at least (dev->mtu+18+4). */
+#define TX_BUF_SIZE MAX_ETH_FRAME_SIZE
+#define TX_BUF_TOT_LEN (TX_BUF_SIZE * NUM_TX_DESC)
+
+/* PCI Tuning Parameters
+ Threshold is bytes transferred to chip before transmission starts. */
+#define TX_FIFO_THRESH 256 /* In bytes, rounded down to 32 byte units. */
+
+/* The following settings are log_2(bytes)-4: 0 == 16 bytes .. 6==1024, 7==end of packet. */
+#define RX_FIFO_THRESH 7 /* Rx buffer level before first PCI xfer. */
+#define RX_DMA_BURST 7 /* Maximum PCI burst, '6' is 1024 */
+#define TX_DMA_BURST 6 /* Maximum PCI burst, '6' is 1024 */
+#define TX_RETRY 8 /* 0-15. retries = 16 + (TX_RETRY * 16) */
+
+/* Operational parameters that usually are not changed. */
+/* Time in jiffies before concluding the transmitter is hung. */
+#define TX_TIMEOUT (6*HZ)
+
+
+enum {
+ HAS_MII_XCVR = 0x010000,
+ HAS_CHIP_XCVR = 0x020000,
+ HAS_LNK_CHNG = 0x040000,
+};
+
+#define RTL_NUM_STATS 4 /* number of ETHTOOL_GSTATS u64's */
+#define RTL_REGS_VER 1 /* version of reg. data in ETHTOOL_GREGS */
+#define RTL_MIN_IO_SIZE 0x80
+#define RTL8139B_IO_SIZE 256
+
+#define RTL8129_CAPS HAS_MII_XCVR
+#define RTL8139_CAPS (HAS_CHIP_XCVR|HAS_LNK_CHNG)
+
+typedef enum {
+ RTL8139 = 0,
+ RTL8129,
+} board_t;
+
+
+/* indexed by board_t, above */
+static const struct {
+ const char *name;
+ u32 hw_flags;
+} board_info[] = {
+ { "RealTek RTL8139", RTL8139_CAPS },
+ { "RealTek RTL8129", RTL8129_CAPS },
+};
+
+
+static const struct pci_device_id rtl8139_pci_tbl[] = {
+ {0x10ec, 0x8139, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 },
+ {0x10ec, 0x8138, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 },
+ {0x1113, 0x1211, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 },
+ {0x1500, 0x1360, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 },
+ {0x4033, 0x1360, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 },
+ {0x1186, 0x1300, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 },
+ {0x1186, 0x1340, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 },
+ {0x13d1, 0xab06, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 },
+ {0x1259, 0xa117, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 },
+ {0x1259, 0xa11e, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 },
+ {0x14ea, 0xab06, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 },
+ {0x14ea, 0xab07, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 },
+ {0x11db, 0x1234, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 },
+ {0x1432, 0x9130, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 },
+ {0x02ac, 0x1012, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 },
+ {0x018a, 0x0106, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 },
+ {0x126c, 0x1211, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 },
+ {0x1743, 0x8139, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 },
+ {0x021b, 0x8139, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 },
+ {0x16ec, 0xab06, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 },
+
+#ifdef CONFIG_SH_SECUREEDGE5410
+ /* Bogus 8139 silicon reports 8129 without external PROM :-( */
+ {0x10ec, 0x8129, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 },
+#endif
+#ifdef CONFIG_8139TOO_8129
+ {0x10ec, 0x8129, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8129 },
+#endif
+
+ /* some crazy cards report invalid vendor ids like
+ * 0x0001 here. The other ids are valid and constant,
+ * so we simply don't match on the main vendor id.
+ */
+ {PCI_ANY_ID, 0x8139, 0x10ec, 0x8139, 0, 0, RTL8139 },
+ {PCI_ANY_ID, 0x8139, 0x1186, 0x1300, 0, 0, RTL8139 },
+ {PCI_ANY_ID, 0x8139, 0x13d1, 0xab06, 0, 0, RTL8139 },
+
+ {0,}
+};
+MODULE_DEVICE_TABLE (pci, rtl8139_pci_tbl);
+
+static struct {
+ const char str[ETH_GSTRING_LEN];
+} ethtool_stats_keys[] = {
+ { "early_rx" },
+ { "tx_buf_mapped" },
+ { "tx_timeouts" },
+ { "rx_lost_in_ring" },
+};
+
+/* The rest of these values should never change. */
+
+/* Symbolic offsets to registers. */
+enum RTL8139_registers {
+ MAC0 = 0, /* Ethernet hardware address. */
+ MAR0 = 8, /* Multicast filter. */
+ TxStatus0 = 0x10, /* Transmit status (Four 32bit registers). */
+ TxAddr0 = 0x20, /* Tx descriptors (also four 32bit). */
+ RxBuf = 0x30,
+ ChipCmd = 0x37,
+ RxBufPtr = 0x38,
+ RxBufAddr = 0x3A,
+ IntrMask = 0x3C,
+ IntrStatus = 0x3E,
+ TxConfig = 0x40,
+ RxConfig = 0x44,
+ Timer = 0x48, /* A general-purpose counter. */
+ RxMissed = 0x4C, /* 24 bits valid, write clears. */
+ Cfg9346 = 0x50,
+ Config0 = 0x51,
+ Config1 = 0x52,
+ TimerInt = 0x54,
+ MediaStatus = 0x58,
+ Config3 = 0x59,
+ Config4 = 0x5A, /* absent on RTL-8139A */
+ HltClk = 0x5B,
+ MultiIntr = 0x5C,
+ TxSummary = 0x60,
+ BasicModeCtrl = 0x62,
+ BasicModeStatus = 0x64,
+ NWayAdvert = 0x66,
+ NWayLPAR = 0x68,
+ NWayExpansion = 0x6A,
+ /* Undocumented registers, but required for proper operation. */
+ FIFOTMS = 0x70, /* FIFO Control and test. */
+ CSCR = 0x74, /* Chip Status and Configuration Register. */
+ PARA78 = 0x78,
+ FlashReg = 0xD4, /* Communication with Flash ROM, four bytes. */
+ PARA7c = 0x7c, /* Magic transceiver parameter register. */
+ Config5 = 0xD8, /* absent on RTL-8139A */
+};
+
+enum ClearBitMasks {
+ MultiIntrClear = 0xF000,
+ ChipCmdClear = 0xE2,
+ Config1Clear = (1<<7)|(1<<6)|(1<<3)|(1<<2)|(1<<1),
+};
+
+enum ChipCmdBits {
+ CmdReset = 0x10,
+ CmdRxEnb = 0x08,
+ CmdTxEnb = 0x04,
+ RxBufEmpty = 0x01,
+};
+
+/* Interrupt register bits, using my own meaningful names. */
+enum IntrStatusBits {
+ PCIErr = 0x8000,
+ PCSTimeout = 0x4000,
+ RxFIFOOver = 0x40,
+ RxUnderrun = 0x20,
+ RxOverflow = 0x10,
+ TxErr = 0x08,
+ TxOK = 0x04,
+ RxErr = 0x02,
+ RxOK = 0x01,
+
+ RxAckBits = RxFIFOOver | RxOverflow | RxOK,
+};
+
+enum TxStatusBits {
+ TxHostOwns = 0x2000,
+ TxUnderrun = 0x4000,
+ TxStatOK = 0x8000,
+ TxOutOfWindow = 0x20000000,
+ TxAborted = 0x40000000,
+ TxCarrierLost = 0x80000000,
+};
+enum RxStatusBits {
+ RxMulticast = 0x8000,
+ RxPhysical = 0x4000,
+ RxBroadcast = 0x2000,
+ RxBadSymbol = 0x0020,
+ RxRunt = 0x0010,
+ RxTooLong = 0x0008,
+ RxCRCErr = 0x0004,
+ RxBadAlign = 0x0002,
+ RxStatusOK = 0x0001,
+};
+
+/* Bits in RxConfig. */
+enum rx_mode_bits {
+ AcceptErr = 0x20,
+ AcceptRunt = 0x10,
+ AcceptBroadcast = 0x08,
+ AcceptMulticast = 0x04,
+ AcceptMyPhys = 0x02,
+ AcceptAllPhys = 0x01,
+};
+
+/* Bits in TxConfig. */
+enum tx_config_bits {
+ /* Interframe Gap Time. Only TxIFG96 doesn't violate IEEE 802.3 */
+ TxIFGShift = 24,
+ TxIFG84 = (0 << TxIFGShift), /* 8.4us / 840ns (10 / 100Mbps) */
+ TxIFG88 = (1 << TxIFGShift), /* 8.8us / 880ns (10 / 100Mbps) */
+ TxIFG92 = (2 << TxIFGShift), /* 9.2us / 920ns (10 / 100Mbps) */
+ TxIFG96 = (3 << TxIFGShift), /* 9.6us / 960ns (10 / 100Mbps) */
+
+ TxLoopBack = (1 << 18) | (1 << 17), /* enable loopback test mode */
+ TxCRC = (1 << 16), /* DISABLE Tx pkt CRC append */
+ TxClearAbt = (1 << 0), /* Clear abort (WO) */
+ TxDMAShift = 8, /* DMA burst value (0-7) is shifted X many bits */
+ TxRetryShift = 4, /* TXRR value (0-15) is shifted X many bits */
+
+ TxVersionMask = 0x7C800000, /* mask out version bits 30-26, 23 */
+};
+
+/* Bits in Config1 */
+enum Config1Bits {
+ Cfg1_PM_Enable = 0x01,
+ Cfg1_VPD_Enable = 0x02,
+ Cfg1_PIO = 0x04,
+ Cfg1_MMIO = 0x08,
+ LWAKE = 0x10, /* not on 8139, 8139A */
+ Cfg1_Driver_Load = 0x20,
+ Cfg1_LED0 = 0x40,
+ Cfg1_LED1 = 0x80,
+ SLEEP = (1 << 1), /* only on 8139, 8139A */
+ PWRDN = (1 << 0), /* only on 8139, 8139A */
+};
+
+/* Bits in Config3 */
+enum Config3Bits {
+ Cfg3_FBtBEn = (1 << 0), /* 1 = Fast Back to Back */
+ Cfg3_FuncRegEn = (1 << 1), /* 1 = enable CardBus Function registers */
+ Cfg3_CLKRUN_En = (1 << 2), /* 1 = enable CLKRUN */
+ Cfg3_CardB_En = (1 << 3), /* 1 = enable CardBus registers */
+ Cfg3_LinkUp = (1 << 4), /* 1 = wake up on link up */
+ Cfg3_Magic = (1 << 5), /* 1 = wake up on Magic Packet (tm) */
+ Cfg3_PARM_En = (1 << 6), /* 0 = software can set twister parameters */
+ Cfg3_GNTSel = (1 << 7), /* 1 = delay 1 clock from PCI GNT signal */
+};
+
+/* Bits in Config4 */
+enum Config4Bits {
+ LWPTN = (1 << 2), /* not on 8139, 8139A */
+};
+
+/* Bits in Config5 */
+enum Config5Bits {
+ Cfg5_PME_STS = (1 << 0), /* 1 = PCI reset resets PME_Status */
+ Cfg5_LANWake = (1 << 1), /* 1 = enable LANWake signal */
+ Cfg5_LDPS = (1 << 2), /* 0 = save power when link is down */
+ Cfg5_FIFOAddrPtr= (1 << 3), /* Realtek internal SRAM testing */
+ Cfg5_UWF = (1 << 4), /* 1 = accept unicast wakeup frame */
+ Cfg5_MWF = (1 << 5), /* 1 = accept multicast wakeup frame */
+ Cfg5_BWF = (1 << 6), /* 1 = accept broadcast wakeup frame */
+};
+
+enum RxConfigBits {
+ /* rx fifo threshold */
+ RxCfgFIFOShift = 13,
+ RxCfgFIFONone = (7 << RxCfgFIFOShift),
+
+ /* Max DMA burst */
+ RxCfgDMAShift = 8,
+ RxCfgDMAUnlimited = (7 << RxCfgDMAShift),
+
+ /* rx ring buffer length */
+ RxCfgRcv8K = 0,
+ RxCfgRcv16K = (1 << 11),
+ RxCfgRcv32K = (1 << 12),
+ RxCfgRcv64K = (1 << 11) | (1 << 12),
+
+ /* Disable packet wrap at end of Rx buffer. (not possible with 64k) */
+ RxNoWrap = (1 << 7),
+};
+
+/* Twister tuning parameters from RealTek.
+ Completely undocumented, but required to tune bad links on some boards. */
+enum CSCRBits {
+ CSCR_LinkOKBit = 0x0400,
+ CSCR_LinkChangeBit = 0x0800,
+ CSCR_LinkStatusBits = 0x0f000,
+ CSCR_LinkDownOffCmd = 0x003c0,
+ CSCR_LinkDownCmd = 0x0f3c0,
+};
+
+enum Cfg9346Bits {
+ Cfg9346_Lock = 0x00,
+ Cfg9346_Unlock = 0xC0,
+};
+
+typedef enum {
+ CH_8139 = 0,
+ CH_8139_K,
+ CH_8139A,
+ CH_8139A_G,
+ CH_8139B,
+ CH_8130,
+ CH_8139C,
+ CH_8100,
+ CH_8100B_8139D,
+ CH_8101,
+} chip_t;
+
+enum chip_flags {
+ HasHltClk = (1 << 0),
+ HasLWake = (1 << 1),
+};
+
+#define HW_REVID(b30, b29, b28, b27, b26, b23, b22) \
+ (b30<<30 | b29<<29 | b28<<28 | b27<<27 | b26<<26 | b23<<23 | b22<<22)
+#define HW_REVID_MASK HW_REVID(1, 1, 1, 1, 1, 1, 1)
+
+/* directly indexed by chip_t, above */
+static const struct {
+ const char *name;
+ u32 version; /* from RTL8139C/RTL8139D docs */
+ u32 flags;
+} rtl_chip_info[] = {
+ { "RTL-8139",
+ HW_REVID(1, 0, 0, 0, 0, 0, 0),
+ HasHltClk,
+ },
+
+ { "RTL-8139 rev K",
+ HW_REVID(1, 1, 0, 0, 0, 0, 0),
+ HasHltClk,
+ },
+
+ { "RTL-8139A",
+ HW_REVID(1, 1, 1, 0, 0, 0, 0),
+ HasHltClk, /* XXX undocumented? */
+ },
+
+ { "RTL-8139A rev G",
+ HW_REVID(1, 1, 1, 0, 0, 1, 0),
+ HasHltClk, /* XXX undocumented? */
+ },
+
+ { "RTL-8139B",
+ HW_REVID(1, 1, 1, 1, 0, 0, 0),
+ HasLWake,
+ },
+
+ { "RTL-8130",
+ HW_REVID(1, 1, 1, 1, 1, 0, 0),
+ HasLWake,
+ },
+
+ { "RTL-8139C",
+ HW_REVID(1, 1, 1, 0, 1, 0, 0),
+ HasLWake,
+ },
+
+ { "RTL-8100",
+ HW_REVID(1, 1, 1, 1, 0, 1, 0),
+ HasLWake,
+ },
+
+ { "RTL-8100B/8139D",
+ HW_REVID(1, 1, 1, 0, 1, 0, 1),
+ HasHltClk /* XXX undocumented? */
+ | HasLWake,
+ },
+
+ { "RTL-8101",
+ HW_REVID(1, 1, 1, 0, 1, 1, 1),
+ HasLWake,
+ },
+};
+
+struct rtl_extra_stats {
+ unsigned long early_rx;
+ unsigned long tx_buf_mapped;
+ unsigned long tx_timeouts;
+ unsigned long rx_lost_in_ring;
+};
+
+struct rtl8139_stats {
+ u64 packets;
+ u64 bytes;
+ struct u64_stats_sync syncp;
+};
+
+struct rtl8139_private {
+ void __iomem *mmio_addr;
+ int drv_flags;
+ struct pci_dev *pci_dev;
+ u32 msg_enable;
+ struct napi_struct napi;
+ struct net_device *dev;
+
+ unsigned char *rx_ring;
+ unsigned int cur_rx; /* RX buf index of next pkt */
+ struct rtl8139_stats rx_stats;
+ dma_addr_t rx_ring_dma;
+
+ unsigned int tx_flag;
+ unsigned long cur_tx;
+ unsigned long dirty_tx;
+ struct rtl8139_stats tx_stats;
+ unsigned char *tx_buf[NUM_TX_DESC]; /* Tx bounce buffers */
+ unsigned char *tx_bufs; /* Tx bounce buffer region. */
+ dma_addr_t tx_bufs_dma;
+
+ signed char phys[4]; /* MII device addresses. */
+
+ /* Twister tune state. */
+ char twistie, twist_row, twist_col;
+
+ unsigned int watchdog_fired : 1;
+ unsigned int default_port : 4; /* Last dev->if_port value. */
+ unsigned int have_thread : 1;
+
+ spinlock_t lock;
+ spinlock_t rx_lock;
+
+ chip_t chipset;
+ u32 rx_config;
+ struct rtl_extra_stats xstats;
+
+ struct delayed_work thread;
+
+ struct mii_if_info mii;
+ unsigned int regs_len;
+ unsigned long fifo_copy_timeout;
+};
+
+MODULE_AUTHOR ("Jeff Garzik <jgarzik@pobox.com>");
+MODULE_DESCRIPTION ("RealTek RTL-8139 Fast Ethernet driver");
+MODULE_LICENSE("GPL");
+MODULE_VERSION(DRV_VERSION);
+
+module_param(use_io, bool, 0);
+MODULE_PARM_DESC(use_io, "Force use of I/O access mode. 0=MMIO 1=PIO");
+module_param(multicast_filter_limit, int, 0);
+module_param_array(media, int, NULL, 0);
+module_param_array(full_duplex, int, NULL, 0);
+module_param(debug, int, 0);
+MODULE_PARM_DESC (debug, "8139too bitmapped message enable number");
+MODULE_PARM_DESC (multicast_filter_limit, "8139too maximum number of filtered multicast addresses");
+MODULE_PARM_DESC (media, "8139too: Bits 4+9: force full duplex, bit 5: 100Mbps");
+MODULE_PARM_DESC (full_duplex, "8139too: Force full duplex for board(s) (1)");
+
+static int read_eeprom (void __iomem *ioaddr, int location, int addr_len);
+static int rtl8139_open (struct net_device *dev);
+static int mdio_read (struct net_device *dev, int phy_id, int location);
+static void mdio_write (struct net_device *dev, int phy_id, int location,
+ int val);
+static void rtl8139_start_thread(struct rtl8139_private *tp);
+static void rtl8139_tx_timeout (struct net_device *dev, unsigned int txqueue);
+static void rtl8139_init_ring (struct net_device *dev);
+static netdev_tx_t rtl8139_start_xmit (struct sk_buff *skb,
+ struct net_device *dev);
+#ifdef CONFIG_NET_POLL_CONTROLLER
+static void rtl8139_poll_controller(struct net_device *dev);
+#endif
+static int rtl8139_set_mac_address(struct net_device *dev, void *p);
+static int rtl8139_poll(struct napi_struct *napi, int budget);
+static irqreturn_t rtl8139_interrupt (int irq, void *dev_instance);
+static int rtl8139_close (struct net_device *dev);
+static int netdev_ioctl (struct net_device *dev, struct ifreq *rq, int cmd);
+static void rtl8139_get_stats64(struct net_device *dev,
+ struct rtnl_link_stats64 *stats);
+static void rtl8139_set_rx_mode (struct net_device *dev);
+static void __set_rx_mode (struct net_device *dev);
+static void rtl8139_hw_start (struct net_device *dev);
+static void rtl8139_thread (struct work_struct *work);
+static void rtl8139_tx_timeout_task(struct work_struct *work);
+static const struct ethtool_ops rtl8139_ethtool_ops;
+
+/* write MMIO register, with flush */
+/* Flush avoids rtl8139 bug w/ posted MMIO writes */
+#define RTL_W8_F(reg, val8) do { iowrite8 ((val8), ioaddr + (reg)); ioread8 (ioaddr + (reg)); } while (0)
+#define RTL_W16_F(reg, val16) do { iowrite16 ((val16), ioaddr + (reg)); ioread16 (ioaddr + (reg)); } while (0)
+#define RTL_W32_F(reg, val32) do { iowrite32 ((val32), ioaddr + (reg)); ioread32 (ioaddr + (reg)); } while (0)
+
+/* write MMIO register */
+#define RTL_W8(reg, val8) iowrite8 ((val8), ioaddr + (reg))
+#define RTL_W16(reg, val16) iowrite16 ((val16), ioaddr + (reg))
+#define RTL_W32(reg, val32) iowrite32 ((val32), ioaddr + (reg))
+
+/* read MMIO register */
+#define RTL_R8(reg) ioread8 (ioaddr + (reg))
+#define RTL_R16(reg) ioread16 (ioaddr + (reg))
+#define RTL_R32(reg) ioread32 (ioaddr + (reg))
+
+
+static const u16 rtl8139_intr_mask =
+ PCIErr | PCSTimeout | RxUnderrun | RxOverflow | RxFIFOOver |
+ TxErr | TxOK | RxErr | RxOK;
+
+static const u16 rtl8139_norx_intr_mask =
+ PCIErr | PCSTimeout | RxUnderrun |
+ TxErr | TxOK | RxErr ;
+
+#if RX_BUF_IDX == 0
+static const unsigned int rtl8139_rx_config =
+ RxCfgRcv8K | RxNoWrap |
+ (RX_FIFO_THRESH << RxCfgFIFOShift) |
+ (RX_DMA_BURST << RxCfgDMAShift);
+#elif RX_BUF_IDX == 1
+static const unsigned int rtl8139_rx_config =
+ RxCfgRcv16K | RxNoWrap |
+ (RX_FIFO_THRESH << RxCfgFIFOShift) |
+ (RX_DMA_BURST << RxCfgDMAShift);
+#elif RX_BUF_IDX == 2
+static const unsigned int rtl8139_rx_config =
+ RxCfgRcv32K | RxNoWrap |
+ (RX_FIFO_THRESH << RxCfgFIFOShift) |
+ (RX_DMA_BURST << RxCfgDMAShift);
+#elif RX_BUF_IDX == 3
+static const unsigned int rtl8139_rx_config =
+ RxCfgRcv64K |
+ (RX_FIFO_THRESH << RxCfgFIFOShift) |
+ (RX_DMA_BURST << RxCfgDMAShift);
+#else
+#error "Invalid configuration for 8139_RXBUF_IDX"
+#endif
+
+static const unsigned int rtl8139_tx_config =
+ TxIFG96 | (TX_DMA_BURST << TxDMAShift) | (TX_RETRY << TxRetryShift);
+
+static void __rtl8139_cleanup_dev (struct net_device *dev)
+{
+ struct rtl8139_private *tp = netdev_priv(dev);
+ struct pci_dev *pdev;
+
+ assert (dev != NULL);
+ assert (tp->pci_dev != NULL);
+ pdev = tp->pci_dev;
+
+ if (tp->mmio_addr)
+ pci_iounmap (pdev, tp->mmio_addr);
+
+ /* it's ok to call this even if we have no regions to free */
+ pci_release_regions (pdev);
+
+ free_netdev(dev);
+}
+
+
+static void rtl8139_chip_reset (void __iomem *ioaddr)
+{
+ int i;
+
+ /* Soft reset the chip. */
+ RTL_W8 (ChipCmd, CmdReset);
+
+ /* Check that the chip has finished the reset. */
+ for (i = 1000; i > 0; i--) {
+ barrier();
+ if ((RTL_R8 (ChipCmd) & CmdReset) == 0)
+ break;
+ udelay (10);
+ }
+}
+
+
+static struct net_device *rtl8139_init_board(struct pci_dev *pdev)
+{
+ struct device *d = &pdev->dev;
+ void __iomem *ioaddr;
+ struct net_device *dev;
+ struct rtl8139_private *tp;
+ u8 tmp8;
+ int rc, disable_dev_on_err = 0;
+ unsigned int i, bar;
+ unsigned long io_len;
+ u32 version;
+ static const struct {
+ unsigned long mask;
+ char *type;
+ } res[] = {
+ { IORESOURCE_IO, "PIO" },
+ { IORESOURCE_MEM, "MMIO" }
+ };
+
+ assert (pdev != NULL);
+
+ /* dev and priv zeroed in alloc_etherdev */
+ dev = alloc_etherdev (sizeof (*tp));
+ if (dev == NULL)
+ return ERR_PTR(-ENOMEM);
+
+ SET_NETDEV_DEV(dev, &pdev->dev);
+
+ tp = netdev_priv(dev);
+ tp->pci_dev = pdev;
+
+ /* enable device (incl. PCI PM wakeup and hotplug setup) */
+ rc = pci_enable_device (pdev);
+ if (rc)
+ goto err_out;
+
+ disable_dev_on_err = 1;
+ rc = pci_request_regions (pdev, DRV_NAME);
+ if (rc)
+ goto err_out;
+
+ pci_set_master (pdev);
+
+ u64_stats_init(&tp->rx_stats.syncp);
+ u64_stats_init(&tp->tx_stats.syncp);
+
+retry:
+ /* PIO bar register comes first. */
+ bar = !use_io;
+
+ io_len = pci_resource_len(pdev, bar);
+
+ dev_dbg(d, "%s region size = 0x%02lX\n", res[bar].type, io_len);
+
+ if (!(pci_resource_flags(pdev, bar) & res[bar].mask)) {
+ dev_err(d, "region #%d not a %s resource, aborting\n", bar,
+ res[bar].type);
+ rc = -ENODEV;
+ goto err_out;
+ }
+ if (io_len < RTL_MIN_IO_SIZE) {
+ dev_err(d, "Invalid PCI %s region size(s), aborting\n",
+ res[bar].type);
+ rc = -ENODEV;
+ goto err_out;
+ }
+
+ ioaddr = pci_iomap(pdev, bar, 0);
+ if (!ioaddr) {
+ dev_err(d, "cannot map %s\n", res[bar].type);
+ if (!use_io) {
+ use_io = true;
+ goto retry;
+ }
+ rc = -ENODEV;
+ goto err_out;
+ }
+ tp->regs_len = io_len;
+ tp->mmio_addr = ioaddr;
+
+ /* Bring old chips out of low-power mode. */
+ RTL_W8 (HltClk, 'R');
+
+ /* check for missing/broken hardware */
+ if (RTL_R32 (TxConfig) == 0xFFFFFFFF) {
+ dev_err(&pdev->dev, "Chip not responding, ignoring board\n");
+ rc = -EIO;
+ goto err_out;
+ }
+
+ /* identify chip attached to board */
+ version = RTL_R32 (TxConfig) & HW_REVID_MASK;
+ for (i = 0; i < ARRAY_SIZE (rtl_chip_info); i++)
+ if (version == rtl_chip_info[i].version) {
+ tp->chipset = i;
+ goto match;
+ }
+
+ /* if unknown chip, assume array element #0, original RTL-8139 in this case */
+ i = 0;
+ dev_dbg(&pdev->dev, "unknown chip version, assuming RTL-8139\n");
+ dev_dbg(&pdev->dev, "TxConfig = 0x%x\n", RTL_R32 (TxConfig));
+ tp->chipset = 0;
+
+match:
+ pr_debug("chipset id (%d) == index %d, '%s'\n",
+ version, i, rtl_chip_info[i].name);
+
+ if (tp->chipset >= CH_8139B) {
+ u8 new_tmp8 = tmp8 = RTL_R8 (Config1);
+ pr_debug("PCI PM wakeup\n");
+ if ((rtl_chip_info[tp->chipset].flags & HasLWake) &&
+ (tmp8 & LWAKE))
+ new_tmp8 &= ~LWAKE;
+ new_tmp8 |= Cfg1_PM_Enable;
+ if (new_tmp8 != tmp8) {
+ RTL_W8 (Cfg9346, Cfg9346_Unlock);
+ RTL_W8 (Config1, tmp8);
+ RTL_W8 (Cfg9346, Cfg9346_Lock);
+ }
+ if (rtl_chip_info[tp->chipset].flags & HasLWake) {
+ tmp8 = RTL_R8 (Config4);
+ if (tmp8 & LWPTN) {
+ RTL_W8 (Cfg9346, Cfg9346_Unlock);
+ RTL_W8 (Config4, tmp8 & ~LWPTN);
+ RTL_W8 (Cfg9346, Cfg9346_Lock);
+ }
+ }
+ } else {
+ pr_debug("Old chip wakeup\n");
+ tmp8 = RTL_R8 (Config1);
+ tmp8 &= ~(SLEEP | PWRDN);
+ RTL_W8 (Config1, tmp8);
+ }
+
+ rtl8139_chip_reset (ioaddr);
+
+ return dev;
+
+err_out:
+ __rtl8139_cleanup_dev (dev);
+ if (disable_dev_on_err)
+ pci_disable_device (pdev);
+ return ERR_PTR(rc);
+}
+
+static int rtl8139_set_features(struct net_device *dev, netdev_features_t features)
+{
+ struct rtl8139_private *tp = netdev_priv(dev);
+ unsigned long flags;
+ netdev_features_t changed = features ^ dev->features;
+ void __iomem *ioaddr = tp->mmio_addr;
+
+ if (!(changed & (NETIF_F_RXALL)))
+ return 0;
+
+ spin_lock_irqsave(&tp->lock, flags);
+
+ if (changed & NETIF_F_RXALL) {
+ int rx_mode = tp->rx_config;
+ if (features & NETIF_F_RXALL)
+ rx_mode |= (AcceptErr | AcceptRunt);
+ else
+ rx_mode &= ~(AcceptErr | AcceptRunt);
+ tp->rx_config = rtl8139_rx_config | rx_mode;
+ RTL_W32_F(RxConfig, tp->rx_config);
+ }
+
+ spin_unlock_irqrestore(&tp->lock, flags);
+
+ return 0;
+}
+
+static const struct net_device_ops rtl8139_netdev_ops = {
+ .ndo_open = rtl8139_open,
+ .ndo_stop = rtl8139_close,
+ .ndo_get_stats64 = rtl8139_get_stats64,
+ .ndo_validate_addr = eth_validate_addr,
+ .ndo_set_mac_address = rtl8139_set_mac_address,
+ .ndo_start_xmit = rtl8139_start_xmit,
+ .ndo_set_rx_mode = rtl8139_set_rx_mode,
+ .ndo_eth_ioctl = netdev_ioctl,
+ .ndo_tx_timeout = rtl8139_tx_timeout,
+#ifdef CONFIG_NET_POLL_CONTROLLER
+ .ndo_poll_controller = rtl8139_poll_controller,
+#endif
+ .ndo_set_features = rtl8139_set_features,
+};
+
+static int rtl8139_init_one(struct pci_dev *pdev,
+ const struct pci_device_id *ent)
+{
+ struct net_device *dev = NULL;
+ struct rtl8139_private *tp;
+ __le16 addr[ETH_ALEN / 2];
+ int i, addr_len, option;
+ void __iomem *ioaddr;
+ static int board_idx = -1;
+
+ assert (pdev != NULL);
+ assert (ent != NULL);
+
+ board_idx++;
+
+ /* when we're built into the kernel, the driver version message
+ * is only printed if at least one 8139 board has been found
+ */
+#ifndef MODULE
+ {
+ static int printed_version;
+ if (!printed_version++)
+ pr_info(RTL8139_DRIVER_NAME "\n");
+ }
+#endif
+
+ if (pdev->vendor == PCI_VENDOR_ID_REALTEK &&
+ pdev->device == PCI_DEVICE_ID_REALTEK_8139 && pdev->revision >= 0x20) {
+ dev_info(&pdev->dev,
+ "This (id %04x:%04x rev %02x) is an enhanced 8139C+ chip, use 8139cp\n",
+ pdev->vendor, pdev->device, pdev->revision);
+ return -ENODEV;
+ }
+
+ if (pdev->vendor == PCI_VENDOR_ID_REALTEK &&
+ pdev->device == PCI_DEVICE_ID_REALTEK_8139 &&
+ pdev->subsystem_vendor == PCI_VENDOR_ID_ATHEROS &&
+ pdev->subsystem_device == PCI_DEVICE_ID_REALTEK_8139) {
+ pr_info("OQO Model 2 detected. Forcing PIO\n");
+ use_io = true;
+ }
+
+ dev = rtl8139_init_board (pdev);
+ if (IS_ERR(dev))
+ return PTR_ERR(dev);
+
+ assert (dev != NULL);
+ tp = netdev_priv(dev);
+ tp->dev = dev;
+
+ ioaddr = tp->mmio_addr;
+ assert (ioaddr != NULL);
+
+ addr_len = read_eeprom (ioaddr, 0, 8) == 0x8129 ? 8 : 6;
+ for (i = 0; i < 3; i++)
+ addr[i] = cpu_to_le16(read_eeprom (ioaddr, i + 7, addr_len));
+ eth_hw_addr_set(dev, (u8 *)addr);
+
+ /* The Rtl8139-specific entries in the device structure. */
+ dev->netdev_ops = &rtl8139_netdev_ops;
+ dev->ethtool_ops = &rtl8139_ethtool_ops;
+ dev->watchdog_timeo = TX_TIMEOUT;
+ netif_napi_add(dev, &tp->napi, rtl8139_poll);
+
+ /* note: the hardware is not capable of sg/csum/highdma, however
+ * through the use of skb_copy_and_csum_dev we enable these
+ * features
+ */
+ dev->features |= NETIF_F_SG | NETIF_F_HW_CSUM | NETIF_F_HIGHDMA;
+ dev->vlan_features = dev->features;
+
+ dev->hw_features |= NETIF_F_RXALL;
+ dev->hw_features |= NETIF_F_RXFCS;
+
+ /* MTU range: 68 - 1770 */
+ dev->min_mtu = ETH_MIN_MTU;
+ dev->max_mtu = MAX_ETH_DATA_SIZE;
+
+ /* tp zeroed and aligned in alloc_etherdev */
+ tp = netdev_priv(dev);
+
+ /* note: tp->chipset set in rtl8139_init_board */
+ tp->drv_flags = board_info[ent->driver_data].hw_flags;
+ tp->mmio_addr = ioaddr;
+ tp->msg_enable =
+ (debug < 0 ? RTL8139_DEF_MSG_ENABLE : ((1 << debug) - 1));
+ spin_lock_init (&tp->lock);
+ spin_lock_init (&tp->rx_lock);
+ INIT_DELAYED_WORK(&tp->thread, rtl8139_thread);
+ tp->mii.dev = dev;
+ tp->mii.mdio_read = mdio_read;
+ tp->mii.mdio_write = mdio_write;
+ tp->mii.phy_id_mask = 0x3f;
+ tp->mii.reg_num_mask = 0x1f;
+
+ /* dev is fully set up and ready to use now */
+ pr_debug("about to register device named %s (%p)...\n",
+ dev->name, dev);
+ i = register_netdev (dev);
+ if (i) goto err_out;
+
+ pci_set_drvdata (pdev, dev);
+
+ netdev_info(dev, "%s at 0x%p, %pM, IRQ %d\n",
+ board_info[ent->driver_data].name,
+ ioaddr, dev->dev_addr, pdev->irq);
+
+ netdev_dbg(dev, "Identified 8139 chip type '%s'\n",
+ rtl_chip_info[tp->chipset].name);
+
+ /* Find the connected MII xcvrs.
+ Doing this in open() would allow detecting external xcvrs later, but
+ takes too much time. */
+#ifdef CONFIG_8139TOO_8129
+ if (tp->drv_flags & HAS_MII_XCVR) {
+ int phy, phy_idx = 0;
+ for (phy = 0; phy < 32 && phy_idx < sizeof(tp->phys); phy++) {
+ int mii_status = mdio_read(dev, phy, 1);
+ if (mii_status != 0xffff && mii_status != 0x0000) {
+ u16 advertising = mdio_read(dev, phy, 4);
+ tp->phys[phy_idx++] = phy;
+ netdev_info(dev, "MII transceiver %d status 0x%04x advertising %04x\n",
+ phy, mii_status, advertising);
+ }
+ }
+ if (phy_idx == 0) {
+ netdev_info(dev, "No MII transceivers found! Assuming SYM transceiver\n");
+ tp->phys[0] = 32;
+ }
+ } else
+#endif
+ tp->phys[0] = 32;
+ tp->mii.phy_id = tp->phys[0];
+
+ /* The lower four bits are the media type. */
+ option = (board_idx >= MAX_UNITS) ? 0 : media[board_idx];
+ if (option > 0) {
+ tp->mii.full_duplex = (option & 0x210) ? 1 : 0;
+ tp->default_port = option & 0xFF;
+ if (tp->default_port)
+ tp->mii.force_media = 1;
+ }
+ if (board_idx < MAX_UNITS && full_duplex[board_idx] > 0)
+ tp->mii.full_duplex = full_duplex[board_idx];
+ if (tp->mii.full_duplex) {
+ netdev_info(dev, "Media type forced to Full Duplex\n");
+ /* Changing the MII-advertised media because might prevent
+ re-connection. */
+ tp->mii.force_media = 1;
+ }
+ if (tp->default_port) {
+ netdev_info(dev, " Forcing %dMbps %s-duplex operation\n",
+ (option & 0x20 ? 100 : 10),
+ (option & 0x10 ? "full" : "half"));
+ mdio_write(dev, tp->phys[0], 0,
+ ((option & 0x20) ? 0x2000 : 0) | /* 100Mbps? */
+ ((option & 0x10) ? 0x0100 : 0)); /* Full duplex? */
+ }
+
+ /* Put the chip into low-power mode. */
+ if (rtl_chip_info[tp->chipset].flags & HasHltClk)
+ RTL_W8 (HltClk, 'H'); /* 'R' would leave the clock running. */
+
+ return 0;
+
+err_out:
+ __rtl8139_cleanup_dev (dev);
+ pci_disable_device (pdev);
+ return i;
+}
+
+
+static void rtl8139_remove_one(struct pci_dev *pdev)
+{
+ struct net_device *dev = pci_get_drvdata (pdev);
+ struct rtl8139_private *tp = netdev_priv(dev);
+
+ assert (dev != NULL);
+
+ cancel_delayed_work_sync(&tp->thread);
+
+ unregister_netdev (dev);
+
+ __rtl8139_cleanup_dev (dev);
+ pci_disable_device (pdev);
+}
+
+
+/* Serial EEPROM section. */
+
+/* EEPROM_Ctrl bits. */
+#define EE_SHIFT_CLK 0x04 /* EEPROM shift clock. */
+#define EE_CS 0x08 /* EEPROM chip select. */
+#define EE_DATA_WRITE 0x02 /* EEPROM chip data in. */
+#define EE_WRITE_0 0x00
+#define EE_WRITE_1 0x02
+#define EE_DATA_READ 0x01 /* EEPROM chip data out. */
+#define EE_ENB (0x80 | EE_CS)
+
+/* Delay between EEPROM clock transitions.
+ No extra delay is needed with 33Mhz PCI, but 66Mhz may change this.
+ */
+
+#define eeprom_delay() (void)RTL_R8(Cfg9346)
+
+/* The EEPROM commands include the alway-set leading bit. */
+#define EE_WRITE_CMD (5)
+#define EE_READ_CMD (6)
+#define EE_ERASE_CMD (7)
+
+static int read_eeprom(void __iomem *ioaddr, int location, int addr_len)
+{
+ int i;
+ unsigned retval = 0;
+ int read_cmd = location | (EE_READ_CMD << addr_len);
+
+ RTL_W8 (Cfg9346, EE_ENB & ~EE_CS);
+ RTL_W8 (Cfg9346, EE_ENB);
+ eeprom_delay ();
+
+ /* Shift the read command bits out. */
+ for (i = 4 + addr_len; i >= 0; i--) {
+ int dataval = (read_cmd & (1 << i)) ? EE_DATA_WRITE : 0;
+ RTL_W8 (Cfg9346, EE_ENB | dataval);
+ eeprom_delay ();
+ RTL_W8 (Cfg9346, EE_ENB | dataval | EE_SHIFT_CLK);
+ eeprom_delay ();
+ }
+ RTL_W8 (Cfg9346, EE_ENB);
+ eeprom_delay ();
+
+ for (i = 16; i > 0; i--) {
+ RTL_W8 (Cfg9346, EE_ENB | EE_SHIFT_CLK);
+ eeprom_delay ();
+ retval =
+ (retval << 1) | ((RTL_R8 (Cfg9346) & EE_DATA_READ) ? 1 :
+ 0);
+ RTL_W8 (Cfg9346, EE_ENB);
+ eeprom_delay ();
+ }
+
+ /* Terminate the EEPROM access. */
+ RTL_W8(Cfg9346, 0);
+ eeprom_delay ();
+
+ return retval;
+}
+
+/* MII serial management: mostly bogus for now. */
+/* Read and write the MII management registers using software-generated
+ serial MDIO protocol.
+ The maximum data clock rate is 2.5 Mhz. The minimum timing is usually
+ met by back-to-back PCI I/O cycles, but we insert a delay to avoid
+ "overclocking" issues. */
+#define MDIO_DIR 0x80
+#define MDIO_DATA_OUT 0x04
+#define MDIO_DATA_IN 0x02
+#define MDIO_CLK 0x01
+#define MDIO_WRITE0 (MDIO_DIR)
+#define MDIO_WRITE1 (MDIO_DIR | MDIO_DATA_OUT)
+
+#define mdio_delay() RTL_R8(Config4)
+
+
+static const char mii_2_8139_map[8] = {
+ BasicModeCtrl,
+ BasicModeStatus,
+ 0,
+ 0,
+ NWayAdvert,
+ NWayLPAR,
+ NWayExpansion,
+ 0
+};
+
+
+#ifdef CONFIG_8139TOO_8129
+/* Syncronize the MII management interface by shifting 32 one bits out. */
+static void mdio_sync (void __iomem *ioaddr)
+{
+ int i;
+
+ for (i = 32; i >= 0; i--) {
+ RTL_W8 (Config4, MDIO_WRITE1);
+ mdio_delay ();
+ RTL_W8 (Config4, MDIO_WRITE1 | MDIO_CLK);
+ mdio_delay ();
+ }
+}
+#endif
+
+static int mdio_read (struct net_device *dev, int phy_id, int location)
+{
+ struct rtl8139_private *tp = netdev_priv(dev);
+ int retval = 0;
+#ifdef CONFIG_8139TOO_8129
+ void __iomem *ioaddr = tp->mmio_addr;
+ int mii_cmd = (0xf6 << 10) | (phy_id << 5) | location;
+ int i;
+#endif
+
+ if (phy_id > 31) { /* Really a 8139. Use internal registers. */
+ void __iomem *ioaddr = tp->mmio_addr;
+ return location < 8 && mii_2_8139_map[location] ?
+ RTL_R16 (mii_2_8139_map[location]) : 0;
+ }
+
+#ifdef CONFIG_8139TOO_8129
+ mdio_sync (ioaddr);
+ /* Shift the read command bits out. */
+ for (i = 15; i >= 0; i--) {
+ int dataval = (mii_cmd & (1 << i)) ? MDIO_DATA_OUT : 0;
+
+ RTL_W8 (Config4, MDIO_DIR | dataval);
+ mdio_delay ();
+ RTL_W8 (Config4, MDIO_DIR | dataval | MDIO_CLK);
+ mdio_delay ();
+ }
+
+ /* Read the two transition, 16 data, and wire-idle bits. */
+ for (i = 19; i > 0; i--) {
+ RTL_W8 (Config4, 0);
+ mdio_delay ();
+ retval = (retval << 1) | ((RTL_R8 (Config4) & MDIO_DATA_IN) ? 1 : 0);
+ RTL_W8 (Config4, MDIO_CLK);
+ mdio_delay ();
+ }
+#endif
+
+ return (retval >> 1) & 0xffff;
+}
+
+
+static void mdio_write (struct net_device *dev, int phy_id, int location,
+ int value)
+{
+ struct rtl8139_private *tp = netdev_priv(dev);
+#ifdef CONFIG_8139TOO_8129
+ void __iomem *ioaddr = tp->mmio_addr;
+ int mii_cmd = (0x5002 << 16) | (phy_id << 23) | (location << 18) | value;
+ int i;
+#endif
+
+ if (phy_id > 31) { /* Really a 8139. Use internal registers. */
+ void __iomem *ioaddr = tp->mmio_addr;
+ if (location == 0) {
+ RTL_W8 (Cfg9346, Cfg9346_Unlock);
+ RTL_W16 (BasicModeCtrl, value);
+ RTL_W8 (Cfg9346, Cfg9346_Lock);
+ } else if (location < 8 && mii_2_8139_map[location])
+ RTL_W16 (mii_2_8139_map[location], value);
+ return;
+ }
+
+#ifdef CONFIG_8139TOO_8129
+ mdio_sync (ioaddr);
+
+ /* Shift the command bits out. */
+ for (i = 31; i >= 0; i--) {
+ int dataval =
+ (mii_cmd & (1 << i)) ? MDIO_WRITE1 : MDIO_WRITE0;
+ RTL_W8 (Config4, dataval);
+ mdio_delay ();
+ RTL_W8 (Config4, dataval | MDIO_CLK);
+ mdio_delay ();
+ }
+ /* Clear out extra bits. */
+ for (i = 2; i > 0; i--) {
+ RTL_W8 (Config4, 0);
+ mdio_delay ();
+ RTL_W8 (Config4, MDIO_CLK);
+ mdio_delay ();
+ }
+#endif
+}
+
+
+static int rtl8139_open (struct net_device *dev)
+{
+ struct rtl8139_private *tp = netdev_priv(dev);
+ void __iomem *ioaddr = tp->mmio_addr;
+ const int irq = tp->pci_dev->irq;
+ int retval;
+
+ retval = request_irq(irq, rtl8139_interrupt, IRQF_SHARED, dev->name, dev);
+ if (retval)
+ return retval;
+
+ tp->tx_bufs = dma_alloc_coherent(&tp->pci_dev->dev, TX_BUF_TOT_LEN,
+ &tp->tx_bufs_dma, GFP_KERNEL);
+ tp->rx_ring = dma_alloc_coherent(&tp->pci_dev->dev, RX_BUF_TOT_LEN,
+ &tp->rx_ring_dma, GFP_KERNEL);
+ if (tp->tx_bufs == NULL || tp->rx_ring == NULL) {
+ free_irq(irq, dev);
+
+ if (tp->tx_bufs)
+ dma_free_coherent(&tp->pci_dev->dev, TX_BUF_TOT_LEN,
+ tp->tx_bufs, tp->tx_bufs_dma);
+ if (tp->rx_ring)
+ dma_free_coherent(&tp->pci_dev->dev, RX_BUF_TOT_LEN,
+ tp->rx_ring, tp->rx_ring_dma);
+
+ return -ENOMEM;
+
+ }
+
+ napi_enable(&tp->napi);
+
+ tp->mii.full_duplex = tp->mii.force_media;
+ tp->tx_flag = (TX_FIFO_THRESH << 11) & 0x003f0000;
+
+ rtl8139_init_ring (dev);
+ rtl8139_hw_start (dev);
+ netif_start_queue (dev);
+
+ netif_dbg(tp, ifup, dev,
+ "%s() ioaddr %#llx IRQ %d GP Pins %02x %s-duplex\n",
+ __func__,
+ (unsigned long long)pci_resource_start (tp->pci_dev, 1),
+ irq, RTL_R8 (MediaStatus),
+ tp->mii.full_duplex ? "full" : "half");
+
+ rtl8139_start_thread(tp);
+
+ return 0;
+}
+
+
+static void rtl_check_media (struct net_device *dev, unsigned int init_media)
+{
+ struct rtl8139_private *tp = netdev_priv(dev);
+
+ if (tp->phys[0] >= 0) {
+ mii_check_media(&tp->mii, netif_msg_link(tp), init_media);
+ }
+}
+
+/* Start the hardware at open or resume. */
+static void rtl8139_hw_start (struct net_device *dev)
+{
+ struct rtl8139_private *tp = netdev_priv(dev);
+ void __iomem *ioaddr = tp->mmio_addr;
+ u32 i;
+ u8 tmp;
+
+ /* Bring old chips out of low-power mode. */
+ if (rtl_chip_info[tp->chipset].flags & HasHltClk)
+ RTL_W8 (HltClk, 'R');
+
+ rtl8139_chip_reset (ioaddr);
+
+ /* unlock Config[01234] and BMCR register writes */
+ RTL_W8_F (Cfg9346, Cfg9346_Unlock);
+ /* Restore our idea of the MAC address. */
+ RTL_W32_F (MAC0 + 0, le32_to_cpu (*(__le32 *) (dev->dev_addr + 0)));
+ RTL_W32_F (MAC0 + 4, le16_to_cpu (*(__le16 *) (dev->dev_addr + 4)));
+
+ tp->cur_rx = 0;
+
+ /* init Rx ring buffer DMA address */
+ RTL_W32_F (RxBuf, tp->rx_ring_dma);
+
+ /* Must enable Tx/Rx before setting transfer thresholds! */
+ RTL_W8 (ChipCmd, CmdRxEnb | CmdTxEnb);
+
+ tp->rx_config = rtl8139_rx_config | AcceptBroadcast | AcceptMyPhys;
+ RTL_W32 (RxConfig, tp->rx_config);
+ RTL_W32 (TxConfig, rtl8139_tx_config);
+
+ rtl_check_media (dev, 1);
+
+ if (tp->chipset >= CH_8139B) {
+ /* Disable magic packet scanning, which is enabled
+ * when PM is enabled in Config1. It can be reenabled
+ * via ETHTOOL_SWOL if desired. */
+ RTL_W8 (Config3, RTL_R8 (Config3) & ~Cfg3_Magic);
+ }
+
+ netdev_dbg(dev, "init buffer addresses\n");
+
+ /* Lock Config[01234] and BMCR register writes */
+ RTL_W8 (Cfg9346, Cfg9346_Lock);
+
+ /* init Tx buffer DMA addresses */
+ for (i = 0; i < NUM_TX_DESC; i++)
+ RTL_W32_F (TxAddr0 + (i * 4), tp->tx_bufs_dma + (tp->tx_buf[i] - tp->tx_bufs));
+
+ RTL_W32 (RxMissed, 0);
+
+ rtl8139_set_rx_mode (dev);
+
+ /* no early-rx interrupts */
+ RTL_W16 (MultiIntr, RTL_R16 (MultiIntr) & MultiIntrClear);
+
+ /* make sure RxTx has started */
+ tmp = RTL_R8 (ChipCmd);
+ if ((!(tmp & CmdRxEnb)) || (!(tmp & CmdTxEnb)))
+ RTL_W8 (ChipCmd, CmdRxEnb | CmdTxEnb);
+
+ /* Enable all known interrupts by setting the interrupt mask. */
+ RTL_W16 (IntrMask, rtl8139_intr_mask);
+}
+
+
+/* Initialize the Rx and Tx rings, along with various 'dev' bits. */
+static void rtl8139_init_ring (struct net_device *dev)
+{
+ struct rtl8139_private *tp = netdev_priv(dev);
+ int i;
+
+ tp->cur_rx = 0;
+ tp->cur_tx = 0;
+ tp->dirty_tx = 0;
+
+ for (i = 0; i < NUM_TX_DESC; i++)
+ tp->tx_buf[i] = &tp->tx_bufs[i * TX_BUF_SIZE];
+}
+
+
+/* This must be global for CONFIG_8139TOO_TUNE_TWISTER case */
+static int next_tick = 3 * HZ;
+
+#ifndef CONFIG_8139TOO_TUNE_TWISTER
+static inline void rtl8139_tune_twister (struct net_device *dev,
+ struct rtl8139_private *tp) {}
+#else
+enum TwisterParamVals {
+ PARA78_default = 0x78fa8388,
+ PARA7c_default = 0xcb38de43, /* param[0][3] */
+ PARA7c_xxx = 0xcb38de43,
+};
+
+static const unsigned long param[4][4] = {
+ {0xcb39de43, 0xcb39ce43, 0xfb38de03, 0xcb38de43},
+ {0xcb39de43, 0xcb39ce43, 0xcb39ce83, 0xcb39ce83},
+ {0xcb39de43, 0xcb39ce43, 0xcb39ce83, 0xcb39ce83},
+ {0xbb39de43, 0xbb39ce43, 0xbb39ce83, 0xbb39ce83}
+};
+
+static void rtl8139_tune_twister (struct net_device *dev,
+ struct rtl8139_private *tp)
+{
+ int linkcase;
+ void __iomem *ioaddr = tp->mmio_addr;
+
+ /* This is a complicated state machine to configure the "twister" for
+ impedance/echos based on the cable length.
+ All of this is magic and undocumented.
+ */
+ switch (tp->twistie) {
+ case 1:
+ if (RTL_R16 (CSCR) & CSCR_LinkOKBit) {
+ /* We have link beat, let us tune the twister. */
+ RTL_W16 (CSCR, CSCR_LinkDownOffCmd);
+ tp->twistie = 2; /* Change to state 2. */
+ next_tick = HZ / 10;
+ } else {
+ /* Just put in some reasonable defaults for when beat returns. */
+ RTL_W16 (CSCR, CSCR_LinkDownCmd);
+ RTL_W32 (FIFOTMS, 0x20); /* Turn on cable test mode. */
+ RTL_W32 (PARA78, PARA78_default);
+ RTL_W32 (PARA7c, PARA7c_default);
+ tp->twistie = 0; /* Bail from future actions. */
+ }
+ break;
+ case 2:
+ /* Read how long it took to hear the echo. */
+ linkcase = RTL_R16 (CSCR) & CSCR_LinkStatusBits;
+ if (linkcase == 0x7000)
+ tp->twist_row = 3;
+ else if (linkcase == 0x3000)
+ tp->twist_row = 2;
+ else if (linkcase == 0x1000)
+ tp->twist_row = 1;
+ else
+ tp->twist_row = 0;
+ tp->twist_col = 0;
+ tp->twistie = 3; /* Change to state 2. */
+ next_tick = HZ / 10;
+ break;
+ case 3:
+ /* Put out four tuning parameters, one per 100msec. */
+ if (tp->twist_col == 0)
+ RTL_W16 (FIFOTMS, 0);
+ RTL_W32 (PARA7c, param[(int) tp->twist_row]
+ [(int) tp->twist_col]);
+ next_tick = HZ / 10;
+ if (++tp->twist_col >= 4) {
+ /* For short cables we are done.
+ For long cables (row == 3) check for mistune. */
+ tp->twistie =
+ (tp->twist_row == 3) ? 4 : 0;
+ }
+ break;
+ case 4:
+ /* Special case for long cables: check for mistune. */
+ if ((RTL_R16 (CSCR) &
+ CSCR_LinkStatusBits) == 0x7000) {
+ tp->twistie = 0;
+ break;
+ } else {
+ RTL_W32 (PARA7c, 0xfb38de03);
+ tp->twistie = 5;
+ next_tick = HZ / 10;
+ }
+ break;
+ case 5:
+ /* Retune for shorter cable (column 2). */
+ RTL_W32 (FIFOTMS, 0x20);
+ RTL_W32 (PARA78, PARA78_default);
+ RTL_W32 (PARA7c, PARA7c_default);
+ RTL_W32 (FIFOTMS, 0x00);
+ tp->twist_row = 2;
+ tp->twist_col = 0;
+ tp->twistie = 3;
+ next_tick = HZ / 10;
+ break;
+
+ default:
+ /* do nothing */
+ break;
+ }
+}
+#endif /* CONFIG_8139TOO_TUNE_TWISTER */
+
+static inline void rtl8139_thread_iter (struct net_device *dev,
+ struct rtl8139_private *tp,
+ void __iomem *ioaddr)
+{
+ int mii_lpa;
+
+ mii_lpa = mdio_read (dev, tp->phys[0], MII_LPA);
+
+ if (!tp->mii.force_media && mii_lpa != 0xffff) {
+ int duplex = ((mii_lpa & LPA_100FULL) ||
+ (mii_lpa & 0x01C0) == 0x0040);
+ if (tp->mii.full_duplex != duplex) {
+ tp->mii.full_duplex = duplex;
+
+ if (mii_lpa) {
+ netdev_info(dev, "Setting %s-duplex based on MII #%d link partner ability of %04x\n",
+ tp->mii.full_duplex ? "full" : "half",
+ tp->phys[0], mii_lpa);
+ } else {
+ netdev_info(dev, "media is unconnected, link down, or incompatible connection\n");
+ }
+#if 0
+ RTL_W8 (Cfg9346, Cfg9346_Unlock);
+ RTL_W8 (Config1, tp->mii.full_duplex ? 0x60 : 0x20);
+ RTL_W8 (Cfg9346, Cfg9346_Lock);
+#endif
+ }
+ }
+
+ next_tick = HZ * 60;
+
+ rtl8139_tune_twister (dev, tp);
+
+ netdev_dbg(dev, "Media selection tick, Link partner %04x\n",
+ RTL_R16(NWayLPAR));
+ netdev_dbg(dev, "Other registers are IntMask %04x IntStatus %04x\n",
+ RTL_R16(IntrMask), RTL_R16(IntrStatus));
+ netdev_dbg(dev, "Chip config %02x %02x\n",
+ RTL_R8(Config0), RTL_R8(Config1));
+}
+
+static void rtl8139_thread (struct work_struct *work)
+{
+ struct rtl8139_private *tp =
+ container_of(work, struct rtl8139_private, thread.work);
+ struct net_device *dev = tp->mii.dev;
+ unsigned long thr_delay = next_tick;
+
+ rtnl_lock();
+
+ if (!netif_running(dev))
+ goto out_unlock;
+
+ if (tp->watchdog_fired) {
+ tp->watchdog_fired = 0;
+ rtl8139_tx_timeout_task(work);
+ } else
+ rtl8139_thread_iter(dev, tp, tp->mmio_addr);
+
+ if (tp->have_thread)
+ schedule_delayed_work(&tp->thread, thr_delay);
+out_unlock:
+ rtnl_unlock ();
+}
+
+static void rtl8139_start_thread(struct rtl8139_private *tp)
+{
+ tp->twistie = 0;
+ if (tp->chipset == CH_8139_K)
+ tp->twistie = 1;
+ else if (tp->drv_flags & HAS_LNK_CHNG)
+ return;
+
+ tp->have_thread = 1;
+ tp->watchdog_fired = 0;
+
+ schedule_delayed_work(&tp->thread, next_tick);
+}
+
+static inline void rtl8139_tx_clear (struct rtl8139_private *tp)
+{
+ tp->cur_tx = 0;
+ tp->dirty_tx = 0;
+
+ /* XXX account for unsent Tx packets in tp->stats.tx_dropped */
+}
+
+static void rtl8139_tx_timeout_task (struct work_struct *work)
+{
+ struct rtl8139_private *tp =
+ container_of(work, struct rtl8139_private, thread.work);
+ struct net_device *dev = tp->mii.dev;
+ void __iomem *ioaddr = tp->mmio_addr;
+ int i;
+ u8 tmp8;
+
+ napi_disable(&tp->napi);
+ netif_stop_queue(dev);
+ synchronize_rcu();
+
+ netdev_dbg(dev, "Transmit timeout, status %02x %04x %04x media %02x\n",
+ RTL_R8(ChipCmd), RTL_R16(IntrStatus),
+ RTL_R16(IntrMask), RTL_R8(MediaStatus));
+ /* Emit info to figure out what went wrong. */
+ netdev_dbg(dev, "Tx queue start entry %ld dirty entry %ld\n",
+ tp->cur_tx, tp->dirty_tx);
+ for (i = 0; i < NUM_TX_DESC; i++)
+ netdev_dbg(dev, "Tx descriptor %d is %08x%s\n",
+ i, RTL_R32(TxStatus0 + (i * 4)),
+ i == tp->dirty_tx % NUM_TX_DESC ?
+ " (queue head)" : "");
+
+ tp->xstats.tx_timeouts++;
+
+ /* disable Tx ASAP, if not already */
+ tmp8 = RTL_R8 (ChipCmd);
+ if (tmp8 & CmdTxEnb)
+ RTL_W8 (ChipCmd, CmdRxEnb);
+
+ spin_lock_bh(&tp->rx_lock);
+ /* Disable interrupts by clearing the interrupt mask. */
+ RTL_W16 (IntrMask, 0x0000);
+
+ /* Stop a shared interrupt from scavenging while we are. */
+ spin_lock_irq(&tp->lock);
+ rtl8139_tx_clear (tp);
+ spin_unlock_irq(&tp->lock);
+
+ /* ...and finally, reset everything */
+ napi_enable(&tp->napi);
+ rtl8139_hw_start(dev);
+ netif_wake_queue(dev);
+
+ spin_unlock_bh(&tp->rx_lock);
+}
+
+static void rtl8139_tx_timeout(struct net_device *dev, unsigned int txqueue)
+{
+ struct rtl8139_private *tp = netdev_priv(dev);
+
+ tp->watchdog_fired = 1;
+ if (!tp->have_thread) {
+ INIT_DELAYED_WORK(&tp->thread, rtl8139_thread);
+ schedule_delayed_work(&tp->thread, next_tick);
+ }
+}
+
+static netdev_tx_t rtl8139_start_xmit (struct sk_buff *skb,
+ struct net_device *dev)
+{
+ struct rtl8139_private *tp = netdev_priv(dev);
+ void __iomem *ioaddr = tp->mmio_addr;
+ unsigned int entry;
+ unsigned int len = skb->len;
+ unsigned long flags;
+
+ /* Calculate the next Tx descriptor entry. */
+ entry = tp->cur_tx % NUM_TX_DESC;
+
+ /* Note: the chip doesn't have auto-pad! */
+ if (likely(len < TX_BUF_SIZE)) {
+ if (len < ETH_ZLEN)
+ memset(tp->tx_buf[entry], 0, ETH_ZLEN);
+ skb_copy_and_csum_dev(skb, tp->tx_buf[entry]);
+ dev_kfree_skb_any(skb);
+ } else {
+ dev_kfree_skb_any(skb);
+ dev->stats.tx_dropped++;
+ return NETDEV_TX_OK;
+ }
+
+ spin_lock_irqsave(&tp->lock, flags);
+ /*
+ * Writing to TxStatus triggers a DMA transfer of the data
+ * copied to tp->tx_buf[entry] above. Use a memory barrier
+ * to make sure that the device sees the updated data.
+ */
+ wmb();
+ RTL_W32_F (TxStatus0 + (entry * sizeof (u32)),
+ tp->tx_flag | max(len, (unsigned int)ETH_ZLEN));
+
+ tp->cur_tx++;
+
+ if ((tp->cur_tx - NUM_TX_DESC) == tp->dirty_tx)
+ netif_stop_queue (dev);
+ spin_unlock_irqrestore(&tp->lock, flags);
+
+ netif_dbg(tp, tx_queued, dev, "Queued Tx packet size %u to slot %d\n",
+ len, entry);
+
+ return NETDEV_TX_OK;
+}
+
+
+static void rtl8139_tx_interrupt (struct net_device *dev,
+ struct rtl8139_private *tp,
+ void __iomem *ioaddr)
+{
+ unsigned long dirty_tx, tx_left;
+
+ assert (dev != NULL);
+ assert (ioaddr != NULL);
+
+ dirty_tx = tp->dirty_tx;
+ tx_left = tp->cur_tx - dirty_tx;
+ while (tx_left > 0) {
+ int entry = dirty_tx % NUM_TX_DESC;
+ int txstatus;
+
+ txstatus = RTL_R32 (TxStatus0 + (entry * sizeof (u32)));
+
+ if (!(txstatus & (TxStatOK | TxUnderrun | TxAborted)))
+ break; /* It still hasn't been Txed */
+
+ /* Note: TxCarrierLost is always asserted at 100mbps. */
+ if (txstatus & (TxOutOfWindow | TxAborted)) {
+ /* There was an major error, log it. */
+ netif_dbg(tp, tx_err, dev, "Transmit error, Tx status %08x\n",
+ txstatus);
+ dev->stats.tx_errors++;
+ if (txstatus & TxAborted) {
+ dev->stats.tx_aborted_errors++;
+ RTL_W32 (TxConfig, TxClearAbt);
+ RTL_W16 (IntrStatus, TxErr);
+ wmb();
+ }
+ if (txstatus & TxCarrierLost)
+ dev->stats.tx_carrier_errors++;
+ if (txstatus & TxOutOfWindow)
+ dev->stats.tx_window_errors++;
+ } else {
+ if (txstatus & TxUnderrun) {
+ /* Add 64 to the Tx FIFO threshold. */
+ if (tp->tx_flag < 0x00300000)
+ tp->tx_flag += 0x00020000;
+ dev->stats.tx_fifo_errors++;
+ }
+ dev->stats.collisions += (txstatus >> 24) & 15;
+ u64_stats_update_begin(&tp->tx_stats.syncp);
+ tp->tx_stats.packets++;
+ tp->tx_stats.bytes += txstatus & 0x7ff;
+ u64_stats_update_end(&tp->tx_stats.syncp);
+ }
+
+ dirty_tx++;
+ tx_left--;
+ }
+
+#ifndef RTL8139_NDEBUG
+ if (tp->cur_tx - dirty_tx > NUM_TX_DESC) {
+ netdev_err(dev, "Out-of-sync dirty pointer, %ld vs. %ld\n",
+ dirty_tx, tp->cur_tx);
+ dirty_tx += NUM_TX_DESC;
+ }
+#endif /* RTL8139_NDEBUG */
+
+ /* only wake the queue if we did work, and the queue is stopped */
+ if (tp->dirty_tx != dirty_tx) {
+ tp->dirty_tx = dirty_tx;
+ mb();
+ netif_wake_queue (dev);
+ }
+}
+
+
+/* TODO: clean this up! Rx reset need not be this intensive */
+static void rtl8139_rx_err (u32 rx_status, struct net_device *dev,
+ struct rtl8139_private *tp, void __iomem *ioaddr)
+{
+ u8 tmp8;
+#ifdef CONFIG_8139_OLD_RX_RESET
+ int tmp_work;
+#endif
+
+ netif_dbg(tp, rx_err, dev, "Ethernet frame had errors, status %08x\n",
+ rx_status);
+ dev->stats.rx_errors++;
+ if (!(rx_status & RxStatusOK)) {
+ if (rx_status & RxTooLong) {
+ netdev_dbg(dev, "Oversized Ethernet frame, status %04x!\n",
+ rx_status);
+ /* A.C.: The chip hangs here. */
+ }
+ if (rx_status & (RxBadSymbol | RxBadAlign))
+ dev->stats.rx_frame_errors++;
+ if (rx_status & (RxRunt | RxTooLong))
+ dev->stats.rx_length_errors++;
+ if (rx_status & RxCRCErr)
+ dev->stats.rx_crc_errors++;
+ } else {
+ tp->xstats.rx_lost_in_ring++;
+ }
+
+#ifndef CONFIG_8139_OLD_RX_RESET
+ tmp8 = RTL_R8 (ChipCmd);
+ RTL_W8 (ChipCmd, tmp8 & ~CmdRxEnb);
+ RTL_W8 (ChipCmd, tmp8);
+ RTL_W32 (RxConfig, tp->rx_config);
+ tp->cur_rx = 0;
+#else
+ /* Reset the receiver, based on RealTek recommendation. (Bug?) */
+
+ /* disable receive */
+ RTL_W8_F (ChipCmd, CmdTxEnb);
+ tmp_work = 200;
+ while (--tmp_work > 0) {
+ udelay(1);
+ tmp8 = RTL_R8 (ChipCmd);
+ if (!(tmp8 & CmdRxEnb))
+ break;
+ }
+ if (tmp_work <= 0)
+ netdev_warn(dev, "rx stop wait too long\n");
+ /* restart receive */
+ tmp_work = 200;
+ while (--tmp_work > 0) {
+ RTL_W8_F (ChipCmd, CmdRxEnb | CmdTxEnb);
+ udelay(1);
+ tmp8 = RTL_R8 (ChipCmd);
+ if ((tmp8 & CmdRxEnb) && (tmp8 & CmdTxEnb))
+ break;
+ }
+ if (tmp_work <= 0)
+ netdev_warn(dev, "tx/rx enable wait too long\n");
+
+ /* and reinitialize all rx related registers */
+ RTL_W8_F (Cfg9346, Cfg9346_Unlock);
+ /* Must enable Tx/Rx before setting transfer thresholds! */
+ RTL_W8 (ChipCmd, CmdRxEnb | CmdTxEnb);
+
+ tp->rx_config = rtl8139_rx_config | AcceptBroadcast | AcceptMyPhys;
+ RTL_W32 (RxConfig, tp->rx_config);
+ tp->cur_rx = 0;
+
+ netdev_dbg(dev, "init buffer addresses\n");
+
+ /* Lock Config[01234] and BMCR register writes */
+ RTL_W8 (Cfg9346, Cfg9346_Lock);
+
+ /* init Rx ring buffer DMA address */
+ RTL_W32_F (RxBuf, tp->rx_ring_dma);
+
+ /* A.C.: Reset the multicast list. */
+ __set_rx_mode (dev);
+#endif
+}
+
+#if RX_BUF_IDX == 3
+static inline void wrap_copy(struct sk_buff *skb, const unsigned char *ring,
+ u32 offset, unsigned int size)
+{
+ u32 left = RX_BUF_LEN - offset;
+
+ if (size > left) {
+ skb_copy_to_linear_data(skb, ring + offset, left);
+ skb_copy_to_linear_data_offset(skb, left, ring, size - left);
+ } else
+ skb_copy_to_linear_data(skb, ring + offset, size);
+}
+#endif
+
+static void rtl8139_isr_ack(struct rtl8139_private *tp)
+{
+ void __iomem *ioaddr = tp->mmio_addr;
+ u16 status;
+
+ status = RTL_R16 (IntrStatus) & RxAckBits;
+
+ /* Clear out errors and receive interrupts */
+ if (likely(status != 0)) {
+ if (unlikely(status & (RxFIFOOver | RxOverflow))) {
+ tp->dev->stats.rx_errors++;
+ if (status & RxFIFOOver)
+ tp->dev->stats.rx_fifo_errors++;
+ }
+ RTL_W16_F (IntrStatus, RxAckBits);
+ }
+}
+
+static int rtl8139_rx(struct net_device *dev, struct rtl8139_private *tp,
+ int budget)
+{
+ void __iomem *ioaddr = tp->mmio_addr;
+ int received = 0;
+ unsigned char *rx_ring = tp->rx_ring;
+ unsigned int cur_rx = tp->cur_rx;
+ unsigned int rx_size = 0;
+
+ netdev_dbg(dev, "In %s(), current %04x BufAddr %04x, free to %04x, Cmd %02x\n",
+ __func__, (u16)cur_rx,
+ RTL_R16(RxBufAddr), RTL_R16(RxBufPtr), RTL_R8(ChipCmd));
+
+ while (netif_running(dev) && received < budget &&
+ (RTL_R8 (ChipCmd) & RxBufEmpty) == 0) {
+ u32 ring_offset = cur_rx % RX_BUF_LEN;
+ u32 rx_status;
+ unsigned int pkt_size;
+ struct sk_buff *skb;
+
+ rmb();
+
+ /* read size+status of next frame from DMA ring buffer */
+ rx_status = le32_to_cpu (*(__le32 *) (rx_ring + ring_offset));
+ rx_size = rx_status >> 16;
+ if (likely(!(dev->features & NETIF_F_RXFCS)))
+ pkt_size = rx_size - 4;
+ else
+ pkt_size = rx_size;
+
+ netif_dbg(tp, rx_status, dev, "%s() status %04x, size %04x, cur %04x\n",
+ __func__, rx_status, rx_size, cur_rx);
+#if RTL8139_DEBUG > 2
+ print_hex_dump(KERN_DEBUG, "Frame contents: ",
+ DUMP_PREFIX_OFFSET, 16, 1,
+ &rx_ring[ring_offset], 70, true);
+#endif
+
+ /* Packet copy from FIFO still in progress.
+ * Theoretically, this should never happen
+ * since EarlyRx is disabled.
+ */
+ if (unlikely(rx_size == 0xfff0)) {
+ if (!tp->fifo_copy_timeout)
+ tp->fifo_copy_timeout = jiffies + 2;
+ else if (time_after(jiffies, tp->fifo_copy_timeout)) {
+ netdev_dbg(dev, "hung FIFO. Reset\n");
+ rx_size = 0;
+ goto no_early_rx;
+ }
+ netif_dbg(tp, intr, dev, "fifo copy in progress\n");
+ tp->xstats.early_rx++;
+ break;
+ }
+
+no_early_rx:
+ tp->fifo_copy_timeout = 0;
+
+ /* If Rx err or invalid rx_size/rx_status received
+ * (which happens if we get lost in the ring),
+ * Rx process gets reset, so we abort any further
+ * Rx processing.
+ */
+ if (unlikely((rx_size > (MAX_ETH_FRAME_SIZE+4)) ||
+ (rx_size < 8) ||
+ (!(rx_status & RxStatusOK)))) {
+ if ((dev->features & NETIF_F_RXALL) &&
+ (rx_size <= (MAX_ETH_FRAME_SIZE + 4)) &&
+ (rx_size >= 8) &&
+ (!(rx_status & RxStatusOK))) {
+ /* Length is at least mostly OK, but pkt has
+ * error. I'm hoping we can handle some of these
+ * errors without resetting the chip. --Ben
+ */
+ dev->stats.rx_errors++;
+ if (rx_status & RxCRCErr) {
+ dev->stats.rx_crc_errors++;
+ goto keep_pkt;
+ }
+ if (rx_status & RxRunt) {
+ dev->stats.rx_length_errors++;
+ goto keep_pkt;
+ }
+ }
+ rtl8139_rx_err (rx_status, dev, tp, ioaddr);
+ received = -1;
+ goto out;
+ }
+
+keep_pkt:
+ /* Malloc up new buffer, compatible with net-2e. */
+ /* Omit the four octet CRC from the length. */
+
+ skb = napi_alloc_skb(&tp->napi, pkt_size);
+ if (likely(skb)) {
+#if RX_BUF_IDX == 3
+ wrap_copy(skb, rx_ring, ring_offset+4, pkt_size);
+#else
+ skb_copy_to_linear_data (skb, &rx_ring[ring_offset + 4], pkt_size);
+#endif
+ skb_put (skb, pkt_size);
+
+ skb->protocol = eth_type_trans (skb, dev);
+
+ u64_stats_update_begin(&tp->rx_stats.syncp);
+ tp->rx_stats.packets++;
+ tp->rx_stats.bytes += pkt_size;
+ u64_stats_update_end(&tp->rx_stats.syncp);
+
+ netif_receive_skb (skb);
+ } else {
+ dev->stats.rx_dropped++;
+ }
+ received++;
+
+ cur_rx = (cur_rx + rx_size + 4 + 3) & ~3;
+ RTL_W16 (RxBufPtr, (u16) (cur_rx - 16));
+
+ rtl8139_isr_ack(tp);
+ }
+
+ if (unlikely(!received || rx_size == 0xfff0))
+ rtl8139_isr_ack(tp);
+
+ netdev_dbg(dev, "Done %s(), current %04x BufAddr %04x, free to %04x, Cmd %02x\n",
+ __func__, cur_rx,
+ RTL_R16(RxBufAddr), RTL_R16(RxBufPtr), RTL_R8(ChipCmd));
+
+ tp->cur_rx = cur_rx;
+
+ /*
+ * The receive buffer should be mostly empty.
+ * Tell NAPI to reenable the Rx irq.
+ */
+ if (tp->fifo_copy_timeout)
+ received = budget;
+
+out:
+ return received;
+}
+
+
+static void rtl8139_weird_interrupt (struct net_device *dev,
+ struct rtl8139_private *tp,
+ void __iomem *ioaddr,
+ int status, int link_changed)
+{
+ netdev_dbg(dev, "Abnormal interrupt, status %08x\n", status);
+
+ assert (dev != NULL);
+ assert (tp != NULL);
+ assert (ioaddr != NULL);
+
+ /* Update the error count. */
+ dev->stats.rx_missed_errors += RTL_R32 (RxMissed);
+ RTL_W32 (RxMissed, 0);
+
+ if ((status & RxUnderrun) && link_changed &&
+ (tp->drv_flags & HAS_LNK_CHNG)) {
+ rtl_check_media(dev, 0);
+ status &= ~RxUnderrun;
+ }
+
+ if (status & (RxUnderrun | RxErr))
+ dev->stats.rx_errors++;
+
+ if (status & PCSTimeout)
+ dev->stats.rx_length_errors++;
+ if (status & RxUnderrun)
+ dev->stats.rx_fifo_errors++;
+ if (status & PCIErr) {
+ u16 pci_cmd_status;
+ pci_read_config_word (tp->pci_dev, PCI_STATUS, &pci_cmd_status);
+ pci_write_config_word (tp->pci_dev, PCI_STATUS, pci_cmd_status);
+
+ netdev_err(dev, "PCI Bus error %04x\n", pci_cmd_status);
+ }
+}
+
+static int rtl8139_poll(struct napi_struct *napi, int budget)
+{
+ struct rtl8139_private *tp = container_of(napi, struct rtl8139_private, napi);
+ struct net_device *dev = tp->dev;
+ void __iomem *ioaddr = tp->mmio_addr;
+ int work_done;
+
+ spin_lock(&tp->rx_lock);
+ work_done = 0;
+ if (likely(RTL_R16(IntrStatus) & RxAckBits))
+ work_done += rtl8139_rx(dev, tp, budget);
+
+ if (work_done < budget) {
+ unsigned long flags;
+
+ spin_lock_irqsave(&tp->lock, flags);
+ if (napi_complete_done(napi, work_done))
+ RTL_W16_F(IntrMask, rtl8139_intr_mask);
+ spin_unlock_irqrestore(&tp->lock, flags);
+ }
+ spin_unlock(&tp->rx_lock);
+
+ return work_done;
+}
+
+/* The interrupt handler does all of the Rx thread work and cleans up
+ after the Tx thread. */
+static irqreturn_t rtl8139_interrupt (int irq, void *dev_instance)
+{
+ struct net_device *dev = (struct net_device *) dev_instance;
+ struct rtl8139_private *tp = netdev_priv(dev);
+ void __iomem *ioaddr = tp->mmio_addr;
+ u16 status, ackstat;
+ int link_changed = 0; /* avoid bogus "uninit" warning */
+ int handled = 0;
+
+ spin_lock (&tp->lock);
+ status = RTL_R16 (IntrStatus);
+
+ /* shared irq? */
+ if (unlikely((status & rtl8139_intr_mask) == 0))
+ goto out;
+
+ handled = 1;
+
+ /* h/w no longer present (hotplug?) or major error, bail */
+ if (unlikely(status == 0xFFFF))
+ goto out;
+
+ /* close possible race's with dev_close */
+ if (unlikely(!netif_running(dev))) {
+ RTL_W16 (IntrMask, 0);
+ goto out;
+ }
+
+ /* Acknowledge all of the current interrupt sources ASAP, but
+ an first get an additional status bit from CSCR. */
+ if (unlikely(status & RxUnderrun))
+ link_changed = RTL_R16 (CSCR) & CSCR_LinkChangeBit;
+
+ ackstat = status & ~(RxAckBits | TxErr);
+ if (ackstat)
+ RTL_W16 (IntrStatus, ackstat);
+
+ /* Receive packets are processed by poll routine.
+ If not running start it now. */
+ if (status & RxAckBits){
+ if (napi_schedule_prep(&tp->napi)) {
+ RTL_W16_F (IntrMask, rtl8139_norx_intr_mask);
+ __napi_schedule(&tp->napi);
+ }
+ }
+
+ /* Check uncommon events with one test. */
+ if (unlikely(status & (PCIErr | PCSTimeout | RxUnderrun | RxErr)))
+ rtl8139_weird_interrupt (dev, tp, ioaddr,
+ status, link_changed);
+
+ if (status & (TxOK | TxErr)) {
+ rtl8139_tx_interrupt (dev, tp, ioaddr);
+ if (status & TxErr)
+ RTL_W16 (IntrStatus, TxErr);
+ }
+ out:
+ spin_unlock (&tp->lock);
+
+ netdev_dbg(dev, "exiting interrupt, intr_status=%#4.4x\n",
+ RTL_R16(IntrStatus));
+ return IRQ_RETVAL(handled);
+}
+
+#ifdef CONFIG_NET_POLL_CONTROLLER
+/*
+ * Polling receive - used by netconsole and other diagnostic tools
+ * to allow network i/o with interrupts disabled.
+ */
+static void rtl8139_poll_controller(struct net_device *dev)
+{
+ struct rtl8139_private *tp = netdev_priv(dev);
+ const int irq = tp->pci_dev->irq;
+
+ disable_irq_nosync(irq);
+ rtl8139_interrupt(irq, dev);
+ enable_irq(irq);
+}
+#endif
+
+static int rtl8139_set_mac_address(struct net_device *dev, void *p)
+{
+ struct rtl8139_private *tp = netdev_priv(dev);
+ void __iomem *ioaddr = tp->mmio_addr;
+ struct sockaddr *addr = p;
+
+ if (!is_valid_ether_addr(addr->sa_data))
+ return -EADDRNOTAVAIL;
+
+ eth_hw_addr_set(dev, addr->sa_data);
+
+ spin_lock_irq(&tp->lock);
+
+ RTL_W8_F(Cfg9346, Cfg9346_Unlock);
+ RTL_W32_F(MAC0 + 0, cpu_to_le32 (*(u32 *) (dev->dev_addr + 0)));
+ RTL_W32_F(MAC0 + 4, cpu_to_le32 (*(u32 *) (dev->dev_addr + 4)));
+ RTL_W8_F(Cfg9346, Cfg9346_Lock);
+
+ spin_unlock_irq(&tp->lock);
+
+ return 0;
+}
+
+static int rtl8139_close (struct net_device *dev)
+{
+ struct rtl8139_private *tp = netdev_priv(dev);
+ void __iomem *ioaddr = tp->mmio_addr;
+ unsigned long flags;
+
+ netif_stop_queue(dev);
+ napi_disable(&tp->napi);
+
+ netif_dbg(tp, ifdown, dev, "Shutting down ethercard, status was 0x%04x\n",
+ RTL_R16(IntrStatus));
+
+ spin_lock_irqsave (&tp->lock, flags);
+
+ /* Stop the chip's Tx and Rx DMA processes. */
+ RTL_W8 (ChipCmd, 0);
+
+ /* Disable interrupts by clearing the interrupt mask. */
+ RTL_W16 (IntrMask, 0);
+
+ /* Update the error counts. */
+ dev->stats.rx_missed_errors += RTL_R32 (RxMissed);
+ RTL_W32 (RxMissed, 0);
+
+ spin_unlock_irqrestore (&tp->lock, flags);
+
+ free_irq(tp->pci_dev->irq, dev);
+
+ rtl8139_tx_clear (tp);
+
+ dma_free_coherent(&tp->pci_dev->dev, RX_BUF_TOT_LEN,
+ tp->rx_ring, tp->rx_ring_dma);
+ dma_free_coherent(&tp->pci_dev->dev, TX_BUF_TOT_LEN,
+ tp->tx_bufs, tp->tx_bufs_dma);
+ tp->rx_ring = NULL;
+ tp->tx_bufs = NULL;
+
+ /* Green! Put the chip in low-power mode. */
+ RTL_W8 (Cfg9346, Cfg9346_Unlock);
+
+ if (rtl_chip_info[tp->chipset].flags & HasHltClk)
+ RTL_W8 (HltClk, 'H'); /* 'R' would leave the clock running. */
+
+ return 0;
+}
+
+
+/* Get the ethtool Wake-on-LAN settings. Assumes that wol points to
+ kernel memory, *wol has been initialized as {ETHTOOL_GWOL}, and
+ other threads or interrupts aren't messing with the 8139. */
+static void rtl8139_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
+{
+ struct rtl8139_private *tp = netdev_priv(dev);
+ void __iomem *ioaddr = tp->mmio_addr;
+
+ spin_lock_irq(&tp->lock);
+ if (rtl_chip_info[tp->chipset].flags & HasLWake) {
+ u8 cfg3 = RTL_R8 (Config3);
+ u8 cfg5 = RTL_R8 (Config5);
+
+ wol->supported = WAKE_PHY | WAKE_MAGIC
+ | WAKE_UCAST | WAKE_MCAST | WAKE_BCAST;
+
+ wol->wolopts = 0;
+ if (cfg3 & Cfg3_LinkUp)
+ wol->wolopts |= WAKE_PHY;
+ if (cfg3 & Cfg3_Magic)
+ wol->wolopts |= WAKE_MAGIC;
+ /* (KON)FIXME: See how netdev_set_wol() handles the
+ following constants. */
+ if (cfg5 & Cfg5_UWF)
+ wol->wolopts |= WAKE_UCAST;
+ if (cfg5 & Cfg5_MWF)
+ wol->wolopts |= WAKE_MCAST;
+ if (cfg5 & Cfg5_BWF)
+ wol->wolopts |= WAKE_BCAST;
+ }
+ spin_unlock_irq(&tp->lock);
+}
+
+
+/* Set the ethtool Wake-on-LAN settings. Return 0 or -errno. Assumes
+ that wol points to kernel memory and other threads or interrupts
+ aren't messing with the 8139. */
+static int rtl8139_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
+{
+ struct rtl8139_private *tp = netdev_priv(dev);
+ void __iomem *ioaddr = tp->mmio_addr;
+ u32 support;
+ u8 cfg3, cfg5;
+
+ support = ((rtl_chip_info[tp->chipset].flags & HasLWake)
+ ? (WAKE_PHY | WAKE_MAGIC
+ | WAKE_UCAST | WAKE_MCAST | WAKE_BCAST)
+ : 0);
+ if (wol->wolopts & ~support)
+ return -EINVAL;
+
+ spin_lock_irq(&tp->lock);
+ cfg3 = RTL_R8 (Config3) & ~(Cfg3_LinkUp | Cfg3_Magic);
+ if (wol->wolopts & WAKE_PHY)
+ cfg3 |= Cfg3_LinkUp;
+ if (wol->wolopts & WAKE_MAGIC)
+ cfg3 |= Cfg3_Magic;
+ RTL_W8 (Cfg9346, Cfg9346_Unlock);
+ RTL_W8 (Config3, cfg3);
+ RTL_W8 (Cfg9346, Cfg9346_Lock);
+
+ cfg5 = RTL_R8 (Config5) & ~(Cfg5_UWF | Cfg5_MWF | Cfg5_BWF);
+ /* (KON)FIXME: These are untested. We may have to set the
+ CRC0, Wakeup0 and LSBCRC0 registers too, but I have no
+ documentation. */
+ if (wol->wolopts & WAKE_UCAST)
+ cfg5 |= Cfg5_UWF;
+ if (wol->wolopts & WAKE_MCAST)
+ cfg5 |= Cfg5_MWF;
+ if (wol->wolopts & WAKE_BCAST)
+ cfg5 |= Cfg5_BWF;
+ RTL_W8 (Config5, cfg5); /* need not unlock via Cfg9346 */
+ spin_unlock_irq(&tp->lock);
+
+ return 0;
+}
+
+static void rtl8139_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info)
+{
+ struct rtl8139_private *tp = 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(tp->pci_dev), sizeof(info->bus_info));
+}
+
+static int rtl8139_get_link_ksettings(struct net_device *dev,
+ struct ethtool_link_ksettings *cmd)
+{
+ struct rtl8139_private *tp = netdev_priv(dev);
+ spin_lock_irq(&tp->lock);
+ mii_ethtool_get_link_ksettings(&tp->mii, cmd);
+ spin_unlock_irq(&tp->lock);
+ return 0;
+}
+
+static int rtl8139_set_link_ksettings(struct net_device *dev,
+ const struct ethtool_link_ksettings *cmd)
+{
+ struct rtl8139_private *tp = netdev_priv(dev);
+ int rc;
+ spin_lock_irq(&tp->lock);
+ rc = mii_ethtool_set_link_ksettings(&tp->mii, cmd);
+ spin_unlock_irq(&tp->lock);
+ return rc;
+}
+
+static int rtl8139_nway_reset(struct net_device *dev)
+{
+ struct rtl8139_private *tp = netdev_priv(dev);
+ return mii_nway_restart(&tp->mii);
+}
+
+static u32 rtl8139_get_link(struct net_device *dev)
+{
+ struct rtl8139_private *tp = netdev_priv(dev);
+ return mii_link_ok(&tp->mii);
+}
+
+static u32 rtl8139_get_msglevel(struct net_device *dev)
+{
+ struct rtl8139_private *tp = netdev_priv(dev);
+ return tp->msg_enable;
+}
+
+static void rtl8139_set_msglevel(struct net_device *dev, u32 datum)
+{
+ struct rtl8139_private *tp = netdev_priv(dev);
+ tp->msg_enable = datum;
+}
+
+static int rtl8139_get_regs_len(struct net_device *dev)
+{
+ struct rtl8139_private *tp;
+ /* TODO: we are too slack to do reg dumping for pio, for now */
+ if (use_io)
+ return 0;
+ tp = netdev_priv(dev);
+ return tp->regs_len;
+}
+
+static void rtl8139_get_regs(struct net_device *dev, struct ethtool_regs *regs, void *regbuf)
+{
+ struct rtl8139_private *tp;
+
+ /* TODO: we are too slack to do reg dumping for pio, for now */
+ if (use_io)
+ return;
+ tp = netdev_priv(dev);
+
+ regs->version = RTL_REGS_VER;
+
+ spin_lock_irq(&tp->lock);
+ memcpy_fromio(regbuf, tp->mmio_addr, regs->len);
+ spin_unlock_irq(&tp->lock);
+}
+
+static int rtl8139_get_sset_count(struct net_device *dev, int sset)
+{
+ switch (sset) {
+ case ETH_SS_STATS:
+ return RTL_NUM_STATS;
+ default:
+ return -EOPNOTSUPP;
+ }
+}
+
+static void rtl8139_get_ethtool_stats(struct net_device *dev, struct ethtool_stats *stats, u64 *data)
+{
+ struct rtl8139_private *tp = netdev_priv(dev);
+
+ data[0] = tp->xstats.early_rx;
+ data[1] = tp->xstats.tx_buf_mapped;
+ data[2] = tp->xstats.tx_timeouts;
+ data[3] = tp->xstats.rx_lost_in_ring;
+}
+
+static void rtl8139_get_strings(struct net_device *dev, u32 stringset, u8 *data)
+{
+ memcpy(data, ethtool_stats_keys, sizeof(ethtool_stats_keys));
+}
+
+static const struct ethtool_ops rtl8139_ethtool_ops = {
+ .get_drvinfo = rtl8139_get_drvinfo,
+ .get_regs_len = rtl8139_get_regs_len,
+ .get_regs = rtl8139_get_regs,
+ .nway_reset = rtl8139_nway_reset,
+ .get_link = rtl8139_get_link,
+ .get_msglevel = rtl8139_get_msglevel,
+ .set_msglevel = rtl8139_set_msglevel,
+ .get_wol = rtl8139_get_wol,
+ .set_wol = rtl8139_set_wol,
+ .get_strings = rtl8139_get_strings,
+ .get_sset_count = rtl8139_get_sset_count,
+ .get_ethtool_stats = rtl8139_get_ethtool_stats,
+ .get_link_ksettings = rtl8139_get_link_ksettings,
+ .set_link_ksettings = rtl8139_set_link_ksettings,
+};
+
+static int netdev_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
+{
+ struct rtl8139_private *tp = netdev_priv(dev);
+ int rc;
+
+ if (!netif_running(dev))
+ return -EINVAL;
+
+ spin_lock_irq(&tp->lock);
+ rc = generic_mii_ioctl(&tp->mii, if_mii(rq), cmd, NULL);
+ spin_unlock_irq(&tp->lock);
+
+ return rc;
+}
+
+
+static void
+rtl8139_get_stats64(struct net_device *dev, struct rtnl_link_stats64 *stats)
+{
+ struct rtl8139_private *tp = netdev_priv(dev);
+ void __iomem *ioaddr = tp->mmio_addr;
+ unsigned long flags;
+ unsigned int start;
+
+ if (netif_running(dev)) {
+ spin_lock_irqsave (&tp->lock, flags);
+ dev->stats.rx_missed_errors += RTL_R32 (RxMissed);
+ RTL_W32 (RxMissed, 0);
+ spin_unlock_irqrestore (&tp->lock, flags);
+ }
+
+ netdev_stats_to_stats64(stats, &dev->stats);
+
+ do {
+ start = u64_stats_fetch_begin_irq(&tp->rx_stats.syncp);
+ stats->rx_packets = tp->rx_stats.packets;
+ stats->rx_bytes = tp->rx_stats.bytes;
+ } while (u64_stats_fetch_retry_irq(&tp->rx_stats.syncp, start));
+
+ do {
+ start = u64_stats_fetch_begin_irq(&tp->tx_stats.syncp);
+ stats->tx_packets = tp->tx_stats.packets;
+ stats->tx_bytes = tp->tx_stats.bytes;
+ } while (u64_stats_fetch_retry_irq(&tp->tx_stats.syncp, start));
+}
+
+/* Set or clear the multicast filter for this adaptor.
+ This routine is not state sensitive and need not be SMP locked. */
+
+static void __set_rx_mode (struct net_device *dev)
+{
+ struct rtl8139_private *tp = netdev_priv(dev);
+ void __iomem *ioaddr = tp->mmio_addr;
+ u32 mc_filter[2]; /* Multicast hash filter */
+ int rx_mode;
+ u32 tmp;
+
+ netdev_dbg(dev, "rtl8139_set_rx_mode(%04x) done -- Rx config %08x\n",
+ dev->flags, RTL_R32(RxConfig));
+
+ /* Note: do not reorder, GCC is clever about common statements. */
+ if (dev->flags & IFF_PROMISC) {
+ rx_mode =
+ AcceptBroadcast | AcceptMulticast | AcceptMyPhys |
+ AcceptAllPhys;
+ mc_filter[1] = mc_filter[0] = 0xffffffff;
+ } else if ((netdev_mc_count(dev) > multicast_filter_limit) ||
+ (dev->flags & IFF_ALLMULTI)) {
+ /* Too many to filter perfectly -- accept all multicasts. */
+ rx_mode = AcceptBroadcast | AcceptMulticast | AcceptMyPhys;
+ mc_filter[1] = mc_filter[0] = 0xffffffff;
+ } else {
+ struct netdev_hw_addr *ha;
+ rx_mode = AcceptBroadcast | AcceptMyPhys;
+ mc_filter[1] = mc_filter[0] = 0;
+ netdev_for_each_mc_addr(ha, dev) {
+ int bit_nr = ether_crc(ETH_ALEN, ha->addr) >> 26;
+
+ mc_filter[bit_nr >> 5] |= 1 << (bit_nr & 31);
+ rx_mode |= AcceptMulticast;
+ }
+ }
+
+ if (dev->features & NETIF_F_RXALL)
+ rx_mode |= (AcceptErr | AcceptRunt);
+
+ /* We can safely update without stopping the chip. */
+ tmp = rtl8139_rx_config | rx_mode;
+ if (tp->rx_config != tmp) {
+ RTL_W32_F (RxConfig, tmp);
+ tp->rx_config = tmp;
+ }
+ RTL_W32_F (MAR0 + 0, mc_filter[0]);
+ RTL_W32_F (MAR0 + 4, mc_filter[1]);
+}
+
+static void rtl8139_set_rx_mode (struct net_device *dev)
+{
+ unsigned long flags;
+ struct rtl8139_private *tp = netdev_priv(dev);
+
+ spin_lock_irqsave (&tp->lock, flags);
+ __set_rx_mode(dev);
+ spin_unlock_irqrestore (&tp->lock, flags);
+}
+
+static int __maybe_unused rtl8139_suspend(struct device *device)
+{
+ struct net_device *dev = dev_get_drvdata(device);
+ struct rtl8139_private *tp = netdev_priv(dev);
+ void __iomem *ioaddr = tp->mmio_addr;
+ unsigned long flags;
+
+ if (!netif_running (dev))
+ return 0;
+
+ netif_device_detach (dev);
+
+ spin_lock_irqsave (&tp->lock, flags);
+
+ /* Disable interrupts, stop Tx and Rx. */
+ RTL_W16 (IntrMask, 0);
+ RTL_W8 (ChipCmd, 0);
+
+ /* Update the error counts. */
+ dev->stats.rx_missed_errors += RTL_R32 (RxMissed);
+ RTL_W32 (RxMissed, 0);
+
+ spin_unlock_irqrestore (&tp->lock, flags);
+
+ return 0;
+}
+
+static int __maybe_unused rtl8139_resume(struct device *device)
+{
+ struct net_device *dev = dev_get_drvdata(device);
+
+ if (!netif_running (dev))
+ return 0;
+
+ rtl8139_init_ring (dev);
+ rtl8139_hw_start (dev);
+ netif_device_attach (dev);
+ return 0;
+}
+
+static SIMPLE_DEV_PM_OPS(rtl8139_pm_ops, rtl8139_suspend, rtl8139_resume);
+
+static struct pci_driver rtl8139_pci_driver = {
+ .name = DRV_NAME,
+ .id_table = rtl8139_pci_tbl,
+ .probe = rtl8139_init_one,
+ .remove = rtl8139_remove_one,
+ .driver.pm = &rtl8139_pm_ops,
+};
+
+
+static int __init rtl8139_init_module (void)
+{
+ /* when we're a module, we always print a version message,
+ * even if no 8139 board is found.
+ */
+#ifdef MODULE
+ pr_info(RTL8139_DRIVER_NAME "\n");
+#endif
+
+ return pci_register_driver(&rtl8139_pci_driver);
+}
+
+
+static void __exit rtl8139_cleanup_module (void)
+{
+ pci_unregister_driver (&rtl8139_pci_driver);
+}
+
+
+module_init(rtl8139_init_module);
+module_exit(rtl8139_cleanup_module);
diff --git a/drivers/net/ethernet/realtek/Kconfig b/drivers/net/ethernet/realtek/Kconfig
new file mode 100644
index 000000000..93d9df55b
--- /dev/null
+++ b/drivers/net/ethernet/realtek/Kconfig
@@ -0,0 +1,116 @@
+# SPDX-License-Identifier: GPL-2.0-only
+#
+# Realtek device configuration
+#
+
+config NET_VENDOR_REALTEK
+ bool "Realtek devices"
+ default y
+ depends on PCI || (PARPORT && X86)
+ 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 Realtek devices. If you say Y, you will be asked for
+ your specific card in the following questions.
+
+if NET_VENDOR_REALTEK
+
+config ATP
+ tristate "AT-LAN-TEC/RealTek pocket adapter support"
+ depends on PARPORT && X86
+ select CRC32
+ help
+ This is a network (Ethernet) device which attaches to your parallel
+ port. Read the file <file:drivers/net/ethernet/realtek/atp.c>
+ if you want to use this. If you intend to use this driver, you
+ should have said N to the "Parallel printer support", because the two
+ drivers don't like each other.
+
+ To compile this driver as a module, choose M here: the module
+ will be called atp.
+
+config 8139CP
+ tristate "RealTek RTL-8139 C+ PCI Fast Ethernet Adapter support"
+ depends on PCI
+ select CRC32
+ select MII
+ help
+ This is a driver for the Fast Ethernet PCI network cards based on
+ the RTL8139C+ chips. If you have one of those, say Y here.
+
+ To compile this driver as a module, choose M here: the module
+ will be called 8139cp. This is recommended.
+
+config 8139TOO
+ tristate "RealTek RTL-8129/8130/8139 PCI Fast Ethernet Adapter support"
+ depends on PCI
+ select CRC32
+ select MII
+ help
+ This is a driver for the Fast Ethernet PCI network cards based on
+ the RTL 8129/8130/8139 chips. If you have one of those, say Y here.
+
+ To compile this driver as a module, choose M here: the module
+ will be called 8139too. This is recommended.
+
+config 8139TOO_PIO
+ bool "Use PIO instead of MMIO"
+ default y
+ depends on 8139TOO
+ help
+ This instructs the driver to use programmed I/O ports (PIO) instead
+ of PCI shared memory (MMIO). This can possibly solve some problems
+ in case your mainboard has memory consistency issues. If unsure,
+ say N.
+
+config 8139TOO_TUNE_TWISTER
+ bool "Support for uncommon RTL-8139 rev. K (automatic channel equalization)"
+ depends on 8139TOO
+ help
+ This implements a function which might come in handy in case you
+ are using low quality on long cabling. It is required for RealTek
+ RTL-8139 revision K boards, and totally unused otherwise. It tries
+ to match the transceiver to the cable characteristics. This is
+ experimental since hardly documented by the manufacturer.
+ If unsure, say Y.
+
+config 8139TOO_8129
+ bool "Support for older RTL-8129/8130 boards"
+ depends on 8139TOO
+ help
+ This enables support for the older and uncommon RTL-8129 and
+ RTL-8130 chips, which support MII via an external transceiver,
+ instead of an internal one. Disabling this option will save some
+ memory by making the code size smaller. If unsure, say Y.
+
+config 8139_OLD_RX_RESET
+ bool "Use older RX-reset method"
+ depends on 8139TOO
+ help
+ The 8139too driver was recently updated to contain a more rapid
+ reset sequence, in the face of severe receive errors. This "new"
+ RX-reset method should be adequate for all boards. But if you
+ experience problems, you can enable this option to restore the
+ old RX-reset behavior. If unsure, say N.
+
+config R8169
+ tristate "Realtek 8169/8168/8101/8125 ethernet support"
+ depends on PCI
+ select FW_LOADER
+ select CRC32
+ select PHYLIB
+ select REALTEK_PHY
+ help
+ Say Y here if you have a Realtek Ethernet adapter belonging to
+ the following families:
+ RTL8169 Gigabit Ethernet
+ RTL8168 Gigabit Ethernet
+ RTL8101 Fast Ethernet
+ RTL8125 2.5GBit Ethernet
+
+ To compile this driver as a module, choose M here: the module
+ will be called r8169. This is recommended.
+
+endif # NET_VENDOR_REALTEK
diff --git a/drivers/net/ethernet/realtek/Makefile b/drivers/net/ethernet/realtek/Makefile
new file mode 100644
index 000000000..2e1d78b10
--- /dev/null
+++ b/drivers/net/ethernet/realtek/Makefile
@@ -0,0 +1,10 @@
+# SPDX-License-Identifier: GPL-2.0-only
+#
+# Makefile for the Realtek network device drivers.
+#
+
+obj-$(CONFIG_8139CP) += 8139cp.o
+obj-$(CONFIG_8139TOO) += 8139too.o
+obj-$(CONFIG_ATP) += atp.o
+r8169-objs += r8169_main.o r8169_firmware.o r8169_phy_config.o
+obj-$(CONFIG_R8169) += r8169.o
diff --git a/drivers/net/ethernet/realtek/atp.c b/drivers/net/ethernet/realtek/atp.c
new file mode 100644
index 000000000..6cbcb3164
--- /dev/null
+++ b/drivers/net/ethernet/realtek/atp.c
@@ -0,0 +1,886 @@
+/* atp.c: Attached (pocket) ethernet adapter driver for linux. */
+/*
+ This is a driver for commonly OEM pocket (parallel port)
+ ethernet adapters based on the Realtek RTL8002 and RTL8012 chips.
+
+ Written 1993-2000 by Donald Becker.
+
+ This software may be used and distributed according to the terms of
+ the GNU General Public License (GPL), incorporated herein by reference.
+ Drivers based on or derived from this code fall under the GPL and must
+ retain the authorship, copyright and license notice. This file is not
+ a complete program and may only be used when the entire operating
+ system is licensed under the GPL.
+
+ Copyright 1993 United States Government as represented by the Director,
+ National Security Agency. Copyright 1994-2000 retained by the original
+ author, Donald Becker. The timer-based reset code was supplied in 1995
+ by Bill Carlson, wwc@super.org.
+
+ The author may be reached as becker@scyld.com, or C/O
+ Scyld Computing Corporation
+ 410 Severn Ave., Suite 210
+ Annapolis MD 21403
+
+ Support information and updates available at
+ http://www.scyld.com/network/atp.html
+
+
+ Modular support/softnet added by Alan Cox.
+ _bit abuse fixed up by Alan Cox
+
+*/
+
+static const char version[] =
+"atp.c:v1.09=ac 2002/10/01 Donald Becker <becker@scyld.com>\n";
+
+/* The user-configurable values.
+ These may be modified when a driver module is loaded.*/
+
+static int debug = 1; /* 1 normal messages, 0 quiet .. 7 verbose. */
+#define net_debug debug
+
+/* Maximum events (Rx packets, etc.) to handle at each interrupt. */
+static int max_interrupt_work = 15;
+
+#define NUM_UNITS 2
+/* The standard set of ISA module parameters. */
+static int io[NUM_UNITS];
+static int irq[NUM_UNITS];
+static int xcvr[NUM_UNITS]; /* The data transfer mode. */
+
+/* Operational parameters that are set at compile time. */
+
+/* Time in jiffies before concluding the transmitter is hung. */
+#define TX_TIMEOUT (400*HZ/1000)
+
+/*
+ This file is a device driver for the RealTek (aka AT-Lan-Tec) pocket
+ ethernet adapter. This is a common low-cost OEM pocket ethernet
+ adapter, sold under many names.
+
+ Sources:
+ This driver was written from the packet driver assembly code provided by
+ Vincent Bono of AT-Lan-Tec. Ever try to figure out how a complicated
+ device works just from the assembly code? It ain't pretty. The following
+ description is written based on guesses and writing lots of special-purpose
+ code to test my theorized operation.
+
+ In 1997 Realtek made available the documentation for the second generation
+ RTL8012 chip, which has lead to several driver improvements.
+ http://www.realtek.com.tw/
+
+ Theory of Operation
+
+ The RTL8002 adapter seems to be built around a custom spin of the SEEQ
+ controller core. It probably has a 16K or 64K internal packet buffer, of
+ which the first 4K is devoted to transmit and the rest to receive.
+ The controller maintains the queue of received packet and the packet buffer
+ access pointer internally, with only 'reset to beginning' and 'skip to next
+ packet' commands visible. The transmit packet queue holds two (or more?)
+ packets: both 'retransmit this packet' (due to collision) and 'transmit next
+ packet' commands must be started by hand.
+
+ The station address is stored in a standard bit-serial EEPROM which must be
+ read (ughh) by the device driver. (Provisions have been made for
+ substituting a 74S288 PROM, but I haven't gotten reports of any models
+ using it.) Unlike built-in devices, a pocket adapter can temporarily lose
+ power without indication to the device driver. The major effect is that
+ the station address, receive filter (promiscuous, etc.) and transceiver
+ must be reset.
+
+ The controller itself has 16 registers, some of which use only the lower
+ bits. The registers are read and written 4 bits at a time. The four bit
+ register address is presented on the data lines along with a few additional
+ timing and control bits. The data is then read from status port or written
+ to the data port.
+
+ Correction: the controller has two banks of 16 registers. The second
+ bank contains only the multicast filter table (now used) and the EEPROM
+ access registers.
+
+ Since the bulk data transfer of the actual packets through the slow
+ parallel port dominates the driver's running time, four distinct data
+ (non-register) transfer modes are provided by the adapter, two in each
+ direction. In the first mode timing for the nibble transfers is
+ provided through the data port. In the second mode the same timing is
+ provided through the control port. In either case the data is read from
+ the status port and written to the data port, just as it is accessing
+ registers.
+
+ In addition to the basic data transfer methods, several more are modes are
+ created by adding some delay by doing multiple reads of the data to allow
+ it to stabilize. This delay seems to be needed on most machines.
+
+ The data transfer mode is stored in the 'dev->if_port' field. Its default
+ value is '4'. It may be overridden at boot-time using the third parameter
+ to the "ether=..." initialization.
+
+ The header file <atp.h> provides inline functions that encapsulate the
+ register and data access methods. These functions are hand-tuned to
+ generate reasonable object code. This header file also documents my
+ interpretations of the device registers.
+*/
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/types.h>
+#include <linux/fcntl.h>
+#include <linux/interrupt.h>
+#include <linux/ioport.h>
+#include <linux/in.h>
+#include <linux/string.h>
+#include <linux/errno.h>
+#include <linux/init.h>
+#include <linux/crc32.h>
+#include <linux/netdevice.h>
+#include <linux/etherdevice.h>
+#include <linux/skbuff.h>
+#include <linux/spinlock.h>
+#include <linux/delay.h>
+#include <linux/bitops.h>
+
+#include <asm/io.h>
+#include <asm/dma.h>
+
+#include "atp.h"
+
+MODULE_AUTHOR("Donald Becker <becker@scyld.com>");
+MODULE_DESCRIPTION("RealTek RTL8002/8012 parallel port Ethernet driver");
+MODULE_LICENSE("GPL");
+
+module_param(max_interrupt_work, int, 0);
+module_param(debug, int, 0);
+module_param_hw_array(io, int, ioport, NULL, 0);
+module_param_hw_array(irq, int, irq, NULL, 0);
+module_param_array(xcvr, int, NULL, 0);
+MODULE_PARM_DESC(max_interrupt_work, "ATP maximum events handled per interrupt");
+MODULE_PARM_DESC(debug, "ATP debug level (0-7)");
+MODULE_PARM_DESC(io, "ATP I/O base address(es)");
+MODULE_PARM_DESC(irq, "ATP IRQ number(s)");
+MODULE_PARM_DESC(xcvr, "ATP transceiver(s) (0=internal, 1=external)");
+
+/* The number of low I/O ports used by the ethercard. */
+#define ETHERCARD_TOTAL_SIZE 3
+
+/* Sequence to switch an 8012 from printer mux to ethernet mode. */
+static char mux_8012[] = { 0xff, 0xf7, 0xff, 0xfb, 0xf3, 0xfb, 0xff, 0xf7,};
+
+struct net_local {
+ spinlock_t lock;
+ struct net_device *next_module;
+ struct timer_list timer; /* Media selection timer. */
+ struct net_device *dev; /* Timer dev. */
+ unsigned long last_rx_time; /* Last Rx, in jiffies, to handle Rx hang. */
+ int saved_tx_size;
+ unsigned int tx_unit_busy:1;
+ unsigned char re_tx, /* Number of packet retransmissions. */
+ addr_mode, /* Current Rx filter e.g. promiscuous, etc. */
+ pac_cnt_in_tx_buf;
+};
+
+/* This code, written by wwc@super.org, resets the adapter every
+ TIMED_CHECKER ticks. This recovers from an unknown error which
+ hangs the device. */
+#define TIMED_CHECKER (HZ/4)
+#ifdef TIMED_CHECKER
+#include <linux/timer.h>
+static void atp_timed_checker(struct timer_list *t);
+#endif
+
+/* Index to functions, as function prototypes. */
+
+static int atp_probe1(long ioaddr);
+static void get_node_ID(struct net_device *dev);
+static unsigned short eeprom_op(long ioaddr, unsigned int cmd);
+static int net_open(struct net_device *dev);
+static void hardware_init(struct net_device *dev);
+static void write_packet(long ioaddr, int length, unsigned char *packet, int pad, int mode);
+static void trigger_send(long ioaddr, int length);
+static netdev_tx_t atp_send_packet(struct sk_buff *skb,
+ struct net_device *dev);
+static irqreturn_t atp_interrupt(int irq, void *dev_id);
+static void net_rx(struct net_device *dev);
+static void read_block(long ioaddr, int length, unsigned char *buffer, int data_mode);
+static int net_close(struct net_device *dev);
+static void set_rx_mode(struct net_device *dev);
+static void tx_timeout(struct net_device *dev, unsigned int txqueue);
+
+
+/* A list of all installed ATP devices, for removing the driver module. */
+static struct net_device *root_atp_dev;
+
+/* Check for a network adapter of this type, and return '0' iff one exists.
+ If dev->base_addr == 0, probe all likely locations.
+ If dev->base_addr == 1, always return failure.
+ If dev->base_addr == 2, allocate space for the device and return success
+ (detachable devices only).
+
+ FIXME: we should use the parport layer for this
+ */
+static int __init atp_init(void)
+{
+ int *port, ports[] = {0x378, 0x278, 0x3bc, 0};
+ int base_addr = io[0];
+
+ if (base_addr > 0x1ff) /* Check a single specified location. */
+ return atp_probe1(base_addr);
+ else if (base_addr == 1) /* Don't probe at all. */
+ return -ENXIO;
+
+ for (port = ports; *port; port++) {
+ long ioaddr = *port;
+ outb(0x57, ioaddr + PAR_DATA);
+ if (inb(ioaddr + PAR_DATA) != 0x57)
+ continue;
+ if (atp_probe1(ioaddr) == 0)
+ return 0;
+ }
+
+ return -ENODEV;
+}
+
+static const struct net_device_ops atp_netdev_ops = {
+ .ndo_open = net_open,
+ .ndo_stop = net_close,
+ .ndo_start_xmit = atp_send_packet,
+ .ndo_set_rx_mode = set_rx_mode,
+ .ndo_tx_timeout = tx_timeout,
+ .ndo_set_mac_address = eth_mac_addr,
+ .ndo_validate_addr = eth_validate_addr,
+};
+
+static int __init atp_probe1(long ioaddr)
+{
+ struct net_device *dev = NULL;
+ struct net_local *lp;
+ int saved_ctrl_reg, status, i;
+ int res;
+
+ outb(0xff, ioaddr + PAR_DATA);
+ /* Save the original value of the Control register, in case we guessed
+ wrong. */
+ saved_ctrl_reg = inb(ioaddr + PAR_CONTROL);
+ if (net_debug > 3)
+ printk("atp: Control register was %#2.2x.\n", saved_ctrl_reg);
+ /* IRQEN=0, SLCTB=high INITB=high, AUTOFDB=high, STBB=high. */
+ outb(0x04, ioaddr + PAR_CONTROL);
+#ifndef final_version
+ if (net_debug > 3) {
+ /* Turn off the printer multiplexer on the 8012. */
+ for (i = 0; i < 8; i++)
+ outb(mux_8012[i], ioaddr + PAR_DATA);
+ write_reg(ioaddr, MODSEL, 0x00);
+ printk("atp: Registers are ");
+ for (i = 0; i < 32; i++)
+ printk(" %2.2x", read_nibble(ioaddr, i));
+ printk(".\n");
+ }
+#endif
+ /* Turn off the printer multiplexer on the 8012. */
+ for (i = 0; i < 8; i++)
+ outb(mux_8012[i], ioaddr + PAR_DATA);
+ write_reg_high(ioaddr, CMR1, CMR1h_RESET);
+ /* udelay() here? */
+ status = read_nibble(ioaddr, CMR1);
+
+ if (net_debug > 3) {
+ printk(KERN_DEBUG "atp: Status nibble was %#2.2x..", status);
+ for (i = 0; i < 32; i++)
+ printk(" %2.2x", read_nibble(ioaddr, i));
+ printk("\n");
+ }
+
+ if ((status & 0x78) != 0x08) {
+ /* The pocket adapter probe failed, restore the control register. */
+ outb(saved_ctrl_reg, ioaddr + PAR_CONTROL);
+ return -ENODEV;
+ }
+ status = read_nibble(ioaddr, CMR2_h);
+ if ((status & 0x78) != 0x10) {
+ outb(saved_ctrl_reg, ioaddr + PAR_CONTROL);
+ return -ENODEV;
+ }
+
+ dev = alloc_etherdev(sizeof(struct net_local));
+ if (!dev)
+ return -ENOMEM;
+
+ /* Find the IRQ used by triggering an interrupt. */
+ write_reg_byte(ioaddr, CMR2, 0x01); /* No accept mode, IRQ out. */
+ write_reg_high(ioaddr, CMR1, CMR1h_RxENABLE | CMR1h_TxENABLE); /* Enable Tx and Rx. */
+
+ /* Omit autoIRQ routine for now. Use "table lookup" instead. Uhgggh. */
+ if (irq[0])
+ dev->irq = irq[0];
+ else if (ioaddr == 0x378)
+ dev->irq = 7;
+ else
+ dev->irq = 5;
+ write_reg_high(ioaddr, CMR1, CMR1h_TxRxOFF); /* Disable Tx and Rx units. */
+ write_reg(ioaddr, CMR2, CMR2_NULL);
+
+ dev->base_addr = ioaddr;
+
+ /* Read the station address PROM. */
+ get_node_ID(dev);
+
+#ifndef MODULE
+ if (net_debug)
+ printk(KERN_INFO "%s", version);
+#endif
+
+ printk(KERN_NOTICE "%s: Pocket adapter found at %#3lx, IRQ %d, "
+ "SAPROM %pM.\n",
+ dev->name, dev->base_addr, dev->irq, dev->dev_addr);
+
+ /* Reset the ethernet hardware and activate the printer pass-through. */
+ write_reg_high(ioaddr, CMR1, CMR1h_RESET | CMR1h_MUX);
+
+ lp = netdev_priv(dev);
+ lp->addr_mode = CMR2h_Normal;
+ spin_lock_init(&lp->lock);
+
+ /* For the ATP adapter the "if_port" is really the data transfer mode. */
+ if (xcvr[0])
+ dev->if_port = xcvr[0];
+ else
+ dev->if_port = (dev->mem_start & 0xf) ? (dev->mem_start & 0x7) : 4;
+ if (dev->mem_end & 0xf)
+ net_debug = dev->mem_end & 7;
+
+ dev->netdev_ops = &atp_netdev_ops;
+ dev->watchdog_timeo = TX_TIMEOUT;
+
+ res = register_netdev(dev);
+ if (res) {
+ free_netdev(dev);
+ return res;
+ }
+
+ lp->next_module = root_atp_dev;
+ root_atp_dev = dev;
+
+ return 0;
+}
+
+/* Read the station address PROM, usually a word-wide EEPROM. */
+static void __init get_node_ID(struct net_device *dev)
+{
+ long ioaddr = dev->base_addr;
+ __be16 addr[ETH_ALEN / 2];
+ int sa_offset = 0;
+ int i;
+
+ write_reg(ioaddr, CMR2, CMR2_EEPROM); /* Point to the EEPROM control registers. */
+
+ /* Some adapters have the station address at offset 15 instead of offset
+ zero. Check for it, and fix it if needed. */
+ if (eeprom_op(ioaddr, EE_READ(0)) == 0xffff)
+ sa_offset = 15;
+
+ for (i = 0; i < 3; i++)
+ addr[i] =
+ cpu_to_be16(eeprom_op(ioaddr, EE_READ(sa_offset + i)));
+ eth_hw_addr_set(dev, (u8 *)addr);
+
+ write_reg(ioaddr, CMR2, CMR2_NULL);
+}
+
+/*
+ An EEPROM read command starts by shifting out 0x60+address, and then
+ shifting in the serial data. See the NatSemi databook for details.
+ * ________________
+ * CS : __|
+ * ___ ___
+ * CLK: ______| |___| |
+ * __ _______ _______
+ * DI : __X_______X_______X
+ * DO : _________X_______X
+ */
+
+static unsigned short __init eeprom_op(long ioaddr, u32 cmd)
+{
+ unsigned eedata_out = 0;
+ int num_bits = EE_CMD_SIZE;
+
+ while (--num_bits >= 0) {
+ char outval = (cmd & (1<<num_bits)) ? EE_DATA_WRITE : 0;
+ write_reg_high(ioaddr, PROM_CMD, outval | EE_CLK_LOW);
+ write_reg_high(ioaddr, PROM_CMD, outval | EE_CLK_HIGH);
+ eedata_out <<= 1;
+ if (read_nibble(ioaddr, PROM_DATA) & EE_DATA_READ)
+ eedata_out++;
+ }
+ write_reg_high(ioaddr, PROM_CMD, EE_CLK_LOW & ~EE_CS);
+ return eedata_out;
+}
+
+
+/* Open/initialize the board. This is called (in the current kernel)
+ sometime after booting when the 'ifconfig' program is run.
+
+ This routine sets everything up anew at each open, even
+ registers that "should" only need to be set once at boot, so that
+ there is non-reboot way to recover if something goes wrong.
+
+ This is an attachable device: if there is no private entry then it wasn't
+ probed for at boot-time, and we need to probe for it again.
+ */
+static int net_open(struct net_device *dev)
+{
+ struct net_local *lp = netdev_priv(dev);
+ int ret;
+
+ /* The interrupt line is turned off (tri-stated) when the device isn't in
+ use. That's especially important for "attached" interfaces where the
+ port or interrupt may be shared. */
+ ret = request_irq(dev->irq, atp_interrupt, 0, dev->name, dev);
+ if (ret)
+ return ret;
+
+ hardware_init(dev);
+
+ lp->dev = dev;
+ timer_setup(&lp->timer, atp_timed_checker, 0);
+ lp->timer.expires = jiffies + TIMED_CHECKER;
+ add_timer(&lp->timer);
+
+ netif_start_queue(dev);
+ return 0;
+}
+
+/* This routine resets the hardware. We initialize everything, assuming that
+ the hardware may have been temporarily detached. */
+static void hardware_init(struct net_device *dev)
+{
+ struct net_local *lp = netdev_priv(dev);
+ long ioaddr = dev->base_addr;
+ int i;
+
+ /* Turn off the printer multiplexer on the 8012. */
+ for (i = 0; i < 8; i++)
+ outb(mux_8012[i], ioaddr + PAR_DATA);
+ write_reg_high(ioaddr, CMR1, CMR1h_RESET);
+
+ for (i = 0; i < 6; i++)
+ write_reg_byte(ioaddr, PAR0 + i, dev->dev_addr[i]);
+
+ write_reg_high(ioaddr, CMR2, lp->addr_mode);
+
+ if (net_debug > 2) {
+ printk(KERN_DEBUG "%s: Reset: current Rx mode %d.\n", dev->name,
+ (read_nibble(ioaddr, CMR2_h) >> 3) & 0x0f);
+ }
+
+ write_reg(ioaddr, CMR2, CMR2_IRQOUT);
+ write_reg_high(ioaddr, CMR1, CMR1h_RxENABLE | CMR1h_TxENABLE);
+
+ /* Enable the interrupt line from the serial port. */
+ outb(Ctrl_SelData + Ctrl_IRQEN, ioaddr + PAR_CONTROL);
+
+ /* Unmask the interesting interrupts. */
+ write_reg(ioaddr, IMR, ISR_RxOK | ISR_TxErr | ISR_TxOK);
+ write_reg_high(ioaddr, IMR, ISRh_RxErr);
+
+ lp->tx_unit_busy = 0;
+ lp->pac_cnt_in_tx_buf = 0;
+ lp->saved_tx_size = 0;
+}
+
+static void trigger_send(long ioaddr, int length)
+{
+ write_reg_byte(ioaddr, TxCNT0, length & 0xff);
+ write_reg(ioaddr, TxCNT1, length >> 8);
+ write_reg(ioaddr, CMR1, CMR1_Xmit);
+}
+
+static void write_packet(long ioaddr, int length, unsigned char *packet, int pad_len, int data_mode)
+{
+ if (length & 1)
+ {
+ length++;
+ pad_len++;
+ }
+
+ outb(EOC+MAR, ioaddr + PAR_DATA);
+ if ((data_mode & 1) == 0) {
+ /* Write the packet out, starting with the write addr. */
+ outb(WrAddr+MAR, ioaddr + PAR_DATA);
+ do {
+ write_byte_mode0(ioaddr, *packet++);
+ } while (--length > pad_len) ;
+ do {
+ write_byte_mode0(ioaddr, 0);
+ } while (--length > 0) ;
+ } else {
+ /* Write the packet out in slow mode. */
+ unsigned char outbyte = *packet++;
+
+ outb(Ctrl_LNibWrite + Ctrl_IRQEN, ioaddr + PAR_CONTROL);
+ outb(WrAddr+MAR, ioaddr + PAR_DATA);
+
+ outb((outbyte & 0x0f)|0x40, ioaddr + PAR_DATA);
+ outb(outbyte & 0x0f, ioaddr + PAR_DATA);
+ outbyte >>= 4;
+ outb(outbyte & 0x0f, ioaddr + PAR_DATA);
+ outb(Ctrl_HNibWrite + Ctrl_IRQEN, ioaddr + PAR_CONTROL);
+ while (--length > pad_len)
+ write_byte_mode1(ioaddr, *packet++);
+ while (--length > 0)
+ write_byte_mode1(ioaddr, 0);
+ }
+ /* Terminate the Tx frame. End of write: ECB. */
+ outb(0xff, ioaddr + PAR_DATA);
+ outb(Ctrl_HNibWrite | Ctrl_SelData | Ctrl_IRQEN, ioaddr + PAR_CONTROL);
+}
+
+static void tx_timeout(struct net_device *dev, unsigned int txqueue)
+{
+ long ioaddr = dev->base_addr;
+
+ printk(KERN_WARNING "%s: Transmit timed out, %s?\n", dev->name,
+ inb(ioaddr + PAR_CONTROL) & 0x10 ? "network cable problem"
+ : "IRQ conflict");
+ dev->stats.tx_errors++;
+ /* Try to restart the adapter. */
+ hardware_init(dev);
+ netif_trans_update(dev); /* prevent tx timeout */
+ netif_wake_queue(dev);
+ dev->stats.tx_errors++;
+}
+
+static netdev_tx_t atp_send_packet(struct sk_buff *skb,
+ struct net_device *dev)
+{
+ struct net_local *lp = netdev_priv(dev);
+ long ioaddr = dev->base_addr;
+ int length;
+ unsigned long flags;
+
+ length = ETH_ZLEN < skb->len ? skb->len : ETH_ZLEN;
+
+ netif_stop_queue(dev);
+
+ /* Disable interrupts by writing 0x00 to the Interrupt Mask Register.
+ This sequence must not be interrupted by an incoming packet. */
+
+ spin_lock_irqsave(&lp->lock, flags);
+ write_reg(ioaddr, IMR, 0);
+ write_reg_high(ioaddr, IMR, 0);
+ spin_unlock_irqrestore(&lp->lock, flags);
+
+ write_packet(ioaddr, length, skb->data, length-skb->len, dev->if_port);
+
+ lp->pac_cnt_in_tx_buf++;
+ if (lp->tx_unit_busy == 0) {
+ trigger_send(ioaddr, length);
+ lp->saved_tx_size = 0; /* Redundant */
+ lp->re_tx = 0;
+ lp->tx_unit_busy = 1;
+ } else
+ lp->saved_tx_size = length;
+ /* Re-enable the LPT interrupts. */
+ write_reg(ioaddr, IMR, ISR_RxOK | ISR_TxErr | ISR_TxOK);
+ write_reg_high(ioaddr, IMR, ISRh_RxErr);
+
+ dev_kfree_skb (skb);
+ return NETDEV_TX_OK;
+}
+
+
+/* The typical workload of the driver:
+ Handle the network interface interrupts. */
+static irqreturn_t atp_interrupt(int irq, void *dev_instance)
+{
+ struct net_device *dev = dev_instance;
+ struct net_local *lp;
+ long ioaddr;
+ static int num_tx_since_rx;
+ int boguscount = max_interrupt_work;
+ int handled = 0;
+
+ ioaddr = dev->base_addr;
+ lp = netdev_priv(dev);
+
+ spin_lock(&lp->lock);
+
+ /* Disable additional spurious interrupts. */
+ outb(Ctrl_SelData, ioaddr + PAR_CONTROL);
+
+ /* The adapter's output is currently the IRQ line, switch it to data. */
+ write_reg(ioaddr, CMR2, CMR2_NULL);
+ write_reg(ioaddr, IMR, 0);
+
+ if (net_debug > 5)
+ printk(KERN_DEBUG "%s: In interrupt ", dev->name);
+ while (--boguscount > 0) {
+ int status = read_nibble(ioaddr, ISR);
+ if (net_debug > 5)
+ printk("loop status %02x..", status);
+
+ if (status & (ISR_RxOK<<3)) {
+ handled = 1;
+ write_reg(ioaddr, ISR, ISR_RxOK); /* Clear the Rx interrupt. */
+ do {
+ int read_status = read_nibble(ioaddr, CMR1);
+ if (net_debug > 6)
+ printk("handling Rx packet %02x..", read_status);
+ /* We acknowledged the normal Rx interrupt, so if the interrupt
+ is still outstanding we must have a Rx error. */
+ if (read_status & (CMR1_IRQ << 3)) { /* Overrun. */
+ dev->stats.rx_over_errors++;
+ /* Set to no-accept mode long enough to remove a packet. */
+ write_reg_high(ioaddr, CMR2, CMR2h_OFF);
+ net_rx(dev);
+ /* Clear the interrupt and return to normal Rx mode. */
+ write_reg_high(ioaddr, ISR, ISRh_RxErr);
+ write_reg_high(ioaddr, CMR2, lp->addr_mode);
+ } else if ((read_status & (CMR1_BufEnb << 3)) == 0) {
+ net_rx(dev);
+ num_tx_since_rx = 0;
+ } else
+ break;
+ } while (--boguscount > 0);
+ } else if (status & ((ISR_TxErr + ISR_TxOK)<<3)) {
+ handled = 1;
+ if (net_debug > 6)
+ printk("handling Tx done..");
+ /* Clear the Tx interrupt. We should check for too many failures
+ and reinitialize the adapter. */
+ write_reg(ioaddr, ISR, ISR_TxErr + ISR_TxOK);
+ if (status & (ISR_TxErr<<3)) {
+ dev->stats.collisions++;
+ if (++lp->re_tx > 15) {
+ dev->stats.tx_aborted_errors++;
+ hardware_init(dev);
+ break;
+ }
+ /* Attempt to retransmit. */
+ if (net_debug > 6) printk("attempting to ReTx");
+ write_reg(ioaddr, CMR1, CMR1_ReXmit + CMR1_Xmit);
+ } else {
+ /* Finish up the transmit. */
+ dev->stats.tx_packets++;
+ lp->pac_cnt_in_tx_buf--;
+ if ( lp->saved_tx_size) {
+ trigger_send(ioaddr, lp->saved_tx_size);
+ lp->saved_tx_size = 0;
+ lp->re_tx = 0;
+ } else
+ lp->tx_unit_busy = 0;
+ netif_wake_queue(dev); /* Inform upper layers. */
+ }
+ num_tx_since_rx++;
+ } else if (num_tx_since_rx > 8 &&
+ time_after(jiffies, lp->last_rx_time + HZ)) {
+ if (net_debug > 2)
+ printk(KERN_DEBUG "%s: Missed packet? No Rx after %d Tx and "
+ "%ld jiffies status %02x CMR1 %02x.\n", dev->name,
+ num_tx_since_rx, jiffies - lp->last_rx_time, status,
+ (read_nibble(ioaddr, CMR1) >> 3) & 15);
+ dev->stats.rx_missed_errors++;
+ hardware_init(dev);
+ num_tx_since_rx = 0;
+ break;
+ } else
+ break;
+ }
+
+ /* This following code fixes a rare (and very difficult to track down)
+ problem where the adapter forgets its ethernet address. */
+ {
+ int i;
+ for (i = 0; i < 6; i++)
+ write_reg_byte(ioaddr, PAR0 + i, dev->dev_addr[i]);
+#if 0 && defined(TIMED_CHECKER)
+ mod_timer(&lp->timer, jiffies + TIMED_CHECKER);
+#endif
+ }
+
+ /* Tell the adapter that it can go back to using the output line as IRQ. */
+ write_reg(ioaddr, CMR2, CMR2_IRQOUT);
+ /* Enable the physical interrupt line, which is sure to be low until.. */
+ outb(Ctrl_SelData + Ctrl_IRQEN, ioaddr + PAR_CONTROL);
+ /* .. we enable the interrupt sources. */
+ write_reg(ioaddr, IMR, ISR_RxOK | ISR_TxErr | ISR_TxOK);
+ write_reg_high(ioaddr, IMR, ISRh_RxErr); /* Hmmm, really needed? */
+
+ spin_unlock(&lp->lock);
+
+ if (net_debug > 5) printk("exiting interrupt.\n");
+ return IRQ_RETVAL(handled);
+}
+
+#ifdef TIMED_CHECKER
+/* This following code fixes a rare (and very difficult to track down)
+ problem where the adapter forgets its ethernet address. */
+static void atp_timed_checker(struct timer_list *t)
+{
+ struct net_local *lp = from_timer(lp, t, timer);
+ struct net_device *dev = lp->dev;
+ long ioaddr = dev->base_addr;
+ int tickssofar = jiffies - lp->last_rx_time;
+ int i;
+
+ spin_lock(&lp->lock);
+ if (tickssofar > 2*HZ) {
+#if 1
+ for (i = 0; i < 6; i++)
+ write_reg_byte(ioaddr, PAR0 + i, dev->dev_addr[i]);
+ lp->last_rx_time = jiffies;
+#else
+ for (i = 0; i < 6; i++)
+ if (read_cmd_byte(ioaddr, PAR0 + i) != atp_timed_dev->dev_addr[i])
+ {
+ struct net_local *lp = netdev_priv(atp_timed_dev);
+ write_reg_byte(ioaddr, PAR0 + i, atp_timed_dev->dev_addr[i]);
+ if (i == 2)
+ dev->stats.tx_errors++;
+ else if (i == 3)
+ dev->stats.tx_dropped++;
+ else if (i == 4)
+ dev->stats.collisions++;
+ else
+ dev->stats.rx_errors++;
+ }
+#endif
+ }
+ spin_unlock(&lp->lock);
+ lp->timer.expires = jiffies + TIMED_CHECKER;
+ add_timer(&lp->timer);
+}
+#endif
+
+/* We have a good packet(s), get it/them out of the buffers. */
+static void net_rx(struct net_device *dev)
+{
+ struct net_local *lp = netdev_priv(dev);
+ long ioaddr = dev->base_addr;
+ struct rx_header rx_head;
+
+ /* Process the received packet. */
+ outb(EOC+MAR, ioaddr + PAR_DATA);
+ read_block(ioaddr, 8, (unsigned char*)&rx_head, dev->if_port);
+ if (net_debug > 5)
+ printk(KERN_DEBUG " rx_count %04x %04x %04x %04x..", rx_head.pad,
+ rx_head.rx_count, rx_head.rx_status, rx_head.cur_addr);
+ if ((rx_head.rx_status & 0x77) != 0x01) {
+ dev->stats.rx_errors++;
+ if (rx_head.rx_status & 0x0004) dev->stats.rx_frame_errors++;
+ else if (rx_head.rx_status & 0x0002) dev->stats.rx_crc_errors++;
+ if (net_debug > 3)
+ printk(KERN_DEBUG "%s: Unknown ATP Rx error %04x.\n",
+ dev->name, rx_head.rx_status);
+ if (rx_head.rx_status & 0x0020) {
+ dev->stats.rx_fifo_errors++;
+ write_reg_high(ioaddr, CMR1, CMR1h_TxENABLE);
+ write_reg_high(ioaddr, CMR1, CMR1h_RxENABLE | CMR1h_TxENABLE);
+ } else if (rx_head.rx_status & 0x0050)
+ hardware_init(dev);
+ return;
+ } else {
+ /* Malloc up new buffer. The "-4" omits the FCS (CRC). */
+ int pkt_len = (rx_head.rx_count & 0x7ff) - 4;
+ struct sk_buff *skb;
+
+ skb = netdev_alloc_skb(dev, pkt_len + 2);
+ if (skb == NULL) {
+ dev->stats.rx_dropped++;
+ goto done;
+ }
+
+ skb_reserve(skb, 2); /* Align IP on 16 byte boundaries */
+ read_block(ioaddr, pkt_len, skb_put(skb,pkt_len), dev->if_port);
+ skb->protocol = eth_type_trans(skb, dev);
+ netif_rx(skb);
+ dev->stats.rx_packets++;
+ dev->stats.rx_bytes += pkt_len;
+ }
+ done:
+ write_reg(ioaddr, CMR1, CMR1_NextPkt);
+ lp->last_rx_time = jiffies;
+}
+
+static void read_block(long ioaddr, int length, unsigned char *p, int data_mode)
+{
+ if (data_mode <= 3) { /* Mode 0 or 1 */
+ outb(Ctrl_LNibRead, ioaddr + PAR_CONTROL);
+ outb(length == 8 ? RdAddr | HNib | MAR : RdAddr | MAR,
+ ioaddr + PAR_DATA);
+ if (data_mode <= 1) { /* Mode 0 or 1 */
+ do { *p++ = read_byte_mode0(ioaddr); } while (--length > 0);
+ } else { /* Mode 2 or 3 */
+ do { *p++ = read_byte_mode2(ioaddr); } while (--length > 0);
+ }
+ } else if (data_mode <= 5) {
+ do { *p++ = read_byte_mode4(ioaddr); } while (--length > 0);
+ } else {
+ do { *p++ = read_byte_mode6(ioaddr); } while (--length > 0);
+ }
+
+ outb(EOC+HNib+MAR, ioaddr + PAR_DATA);
+ outb(Ctrl_SelData, ioaddr + PAR_CONTROL);
+}
+
+/* The inverse routine to net_open(). */
+static int
+net_close(struct net_device *dev)
+{
+ struct net_local *lp = netdev_priv(dev);
+ long ioaddr = dev->base_addr;
+
+ netif_stop_queue(dev);
+
+ del_timer_sync(&lp->timer);
+
+ /* Flush the Tx and disable Rx here. */
+ lp->addr_mode = CMR2h_OFF;
+ write_reg_high(ioaddr, CMR2, CMR2h_OFF);
+
+ /* Free the IRQ line. */
+ outb(0x00, ioaddr + PAR_CONTROL);
+ free_irq(dev->irq, dev);
+
+ /* Reset the ethernet hardware and activate the printer pass-through. */
+ write_reg_high(ioaddr, CMR1, CMR1h_RESET | CMR1h_MUX);
+ return 0;
+}
+
+/*
+ * Set or clear the multicast filter for this adapter.
+ */
+
+static void set_rx_mode(struct net_device *dev)
+{
+ struct net_local *lp = netdev_priv(dev);
+ long ioaddr = dev->base_addr;
+
+ if (!netdev_mc_empty(dev) || (dev->flags & (IFF_ALLMULTI|IFF_PROMISC)))
+ lp->addr_mode = CMR2h_PROMISC;
+ else
+ lp->addr_mode = CMR2h_Normal;
+ write_reg_high(ioaddr, CMR2, lp->addr_mode);
+}
+
+static int __init atp_init_module(void) {
+ if (debug) /* Emit version even if no cards detected. */
+ printk(KERN_INFO "%s", version);
+ return atp_init();
+}
+
+static void __exit atp_cleanup_module(void) {
+ struct net_device *next_dev;
+
+ while (root_atp_dev) {
+ struct net_local *atp_local = netdev_priv(root_atp_dev);
+ next_dev = atp_local->next_module;
+ unregister_netdev(root_atp_dev);
+ /* No need to release_region(), since we never snarf it. */
+ free_netdev(root_atp_dev);
+ root_atp_dev = next_dev;
+ }
+}
+
+module_init(atp_init_module);
+module_exit(atp_cleanup_module);
diff --git a/drivers/net/ethernet/realtek/atp.h b/drivers/net/ethernet/realtek/atp.h
new file mode 100644
index 000000000..b202184ed
--- /dev/null
+++ b/drivers/net/ethernet/realtek/atp.h
@@ -0,0 +1,262 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Linux header file for the ATP pocket ethernet adapter. */
+/* v1.09 8/9/2000 becker@scyld.com. */
+
+#include <linux/if_ether.h>
+#include <linux/types.h>
+
+/* The header prepended to received packets. */
+struct rx_header {
+ ushort pad; /* Pad. */
+ ushort rx_count;
+ ushort rx_status; /* Unknown bit assignments :-<. */
+ ushort cur_addr; /* Apparently the current buffer address(?) */
+};
+
+#define PAR_DATA 0
+#define PAR_STATUS 1
+#define PAR_CONTROL 2
+
+#define Ctrl_LNibRead 0x08 /* LP_PSELECP */
+#define Ctrl_HNibRead 0
+#define Ctrl_LNibWrite 0x08 /* LP_PSELECP */
+#define Ctrl_HNibWrite 0
+#define Ctrl_SelData 0x04 /* LP_PINITP */
+#define Ctrl_IRQEN 0x10 /* LP_PINTEN */
+
+#define EOW 0xE0
+#define EOC 0xE0
+#define WrAddr 0x40 /* Set address of EPLC read, write register. */
+#define RdAddr 0xC0
+#define HNib 0x10
+
+enum page0_regs {
+ /* The first six registers hold
+ * the ethernet physical station address.
+ */
+ PAR0 = 0, PAR1 = 1, PAR2 = 2, PAR3 = 3, PAR4 = 4, PAR5 = 5,
+ TxCNT0 = 6, TxCNT1 = 7, /* The transmit byte count. */
+ TxSTAT = 8, RxSTAT = 9, /* Tx and Rx status. */
+ ISR = 10, IMR = 11, /* Interrupt status and mask. */
+ CMR1 = 12, /* Command register 1. */
+ CMR2 = 13, /* Command register 2. */
+ MODSEL = 14, /* Mode select register. */
+ MAR = 14, /* Memory address register (?). */
+ CMR2_h = 0x1d,
+};
+
+enum eepage_regs {
+ PROM_CMD = 6,
+ PROM_DATA = 7 /* Note that PROM_CMD is in the "high" bits. */
+};
+
+#define ISR_TxOK 0x01
+#define ISR_RxOK 0x04
+#define ISR_TxErr 0x02
+#define ISRh_RxErr 0x11 /* ISR, high nibble */
+
+#define CMR1h_MUX 0x08 /* Select printer multiplexor on 8012. */
+#define CMR1h_RESET 0x04 /* Reset. */
+#define CMR1h_RxENABLE 0x02 /* Rx unit enable. */
+#define CMR1h_TxENABLE 0x01 /* Tx unit enable. */
+#define CMR1h_TxRxOFF 0x00
+#define CMR1_ReXmit 0x08 /* Trigger a retransmit. */
+#define CMR1_Xmit 0x04 /* Trigger a transmit. */
+#define CMR1_IRQ 0x02 /* Interrupt active. */
+#define CMR1_BufEnb 0x01 /* Enable the buffer(?). */
+#define CMR1_NextPkt 0x01 /* Enable the buffer(?). */
+
+#define CMR2_NULL 8
+#define CMR2_IRQOUT 9
+#define CMR2_RAMTEST 10
+#define CMR2_EEPROM 12 /* Set to page 1, for reading the EEPROM. */
+
+#define CMR2h_OFF 0 /* No accept mode. */
+#define CMR2h_Physical 1 /* Accept a physical address match only. */
+#define CMR2h_Normal 2 /* Accept physical and broadcast address. */
+#define CMR2h_PROMISC 3 /* Promiscuous mode. */
+
+/* An inline function used below: it differs from inb() by explicitly
+ * return an unsigned char, saving a truncation.
+ */
+static inline unsigned char inbyte(unsigned short port)
+{
+ unsigned char _v;
+
+ __asm__ __volatile__ ("inb %w1,%b0" : "=a" (_v) : "d" (port));
+ return _v;
+}
+
+/* Read register OFFSET.
+ * This command should always be terminated with read_end().
+ */
+static inline unsigned char read_nibble(short port, unsigned char offset)
+{
+ unsigned char retval;
+
+ outb(EOC+offset, port + PAR_DATA);
+ outb(RdAddr+offset, port + PAR_DATA);
+ inbyte(port + PAR_STATUS); /* Settling time delay */
+ retval = inbyte(port + PAR_STATUS);
+ outb(EOC+offset, port + PAR_DATA);
+
+ return retval;
+}
+
+/* Functions for bulk data read. The interrupt line is always disabled. */
+/* Get a byte using read mode 0, reading data from the control lines. */
+static inline unsigned char read_byte_mode0(short ioaddr)
+{
+ unsigned char low_nib;
+
+ outb(Ctrl_LNibRead, ioaddr + PAR_CONTROL);
+ inbyte(ioaddr + PAR_STATUS);
+ low_nib = (inbyte(ioaddr + PAR_STATUS) >> 3) & 0x0f;
+ outb(Ctrl_HNibRead, ioaddr + PAR_CONTROL);
+ inbyte(ioaddr + PAR_STATUS); /* Settling time delay -- needed! */
+ inbyte(ioaddr + PAR_STATUS); /* Settling time delay -- needed! */
+ return low_nib | ((inbyte(ioaddr + PAR_STATUS) << 1) & 0xf0);
+}
+
+/* The same as read_byte_mode0(), but does multiple inb()s for stability. */
+static inline unsigned char read_byte_mode2(short ioaddr)
+{
+ unsigned char low_nib;
+
+ outb(Ctrl_LNibRead, ioaddr + PAR_CONTROL);
+ inbyte(ioaddr + PAR_STATUS);
+ low_nib = (inbyte(ioaddr + PAR_STATUS) >> 3) & 0x0f;
+ outb(Ctrl_HNibRead, ioaddr + PAR_CONTROL);
+ inbyte(ioaddr + PAR_STATUS); /* Settling time delay -- needed! */
+ return low_nib | ((inbyte(ioaddr + PAR_STATUS) << 1) & 0xf0);
+}
+
+/* Read a byte through the data register. */
+static inline unsigned char read_byte_mode4(short ioaddr)
+{
+ unsigned char low_nib;
+
+ outb(RdAddr | MAR, ioaddr + PAR_DATA);
+ low_nib = (inbyte(ioaddr + PAR_STATUS) >> 3) & 0x0f;
+ outb(RdAddr | HNib | MAR, ioaddr + PAR_DATA);
+ return low_nib | ((inbyte(ioaddr + PAR_STATUS) << 1) & 0xf0);
+}
+
+/* Read a byte through the data register, double reading to allow settling. */
+static inline unsigned char read_byte_mode6(short ioaddr)
+{
+ unsigned char low_nib;
+
+ outb(RdAddr | MAR, ioaddr + PAR_DATA);
+ inbyte(ioaddr + PAR_STATUS);
+ low_nib = (inbyte(ioaddr + PAR_STATUS) >> 3) & 0x0f;
+ outb(RdAddr | HNib | MAR, ioaddr + PAR_DATA);
+ inbyte(ioaddr + PAR_STATUS);
+ return low_nib | ((inbyte(ioaddr + PAR_STATUS) << 1) & 0xf0);
+}
+
+static inline void
+write_reg(short port, unsigned char reg, unsigned char value)
+{
+ unsigned char outval;
+
+ outb(EOC | reg, port + PAR_DATA);
+ outval = WrAddr | reg;
+ outb(outval, port + PAR_DATA);
+ outb(outval, port + PAR_DATA); /* Double write for PS/2. */
+
+ outval &= 0xf0;
+ outval |= value;
+ outb(outval, port + PAR_DATA);
+ outval &= 0x1f;
+ outb(outval, port + PAR_DATA);
+ outb(outval, port + PAR_DATA);
+
+ outb(EOC | outval, port + PAR_DATA);
+}
+
+static inline void
+write_reg_high(short port, unsigned char reg, unsigned char value)
+{
+ unsigned char outval = EOC | HNib | reg;
+
+ outb(outval, port + PAR_DATA);
+ outval &= WrAddr | HNib | 0x0f;
+ outb(outval, port + PAR_DATA);
+ outb(outval, port + PAR_DATA); /* Double write for PS/2. */
+
+ outval = WrAddr | HNib | value;
+ outb(outval, port + PAR_DATA);
+ outval &= HNib | 0x0f; /* HNib | value */
+ outb(outval, port + PAR_DATA);
+ outb(outval, port + PAR_DATA);
+
+ outb(EOC | HNib | outval, port + PAR_DATA);
+}
+
+/* Write a byte out using nibble mode. The low nibble is written first. */
+static inline void
+write_reg_byte(short port, unsigned char reg, unsigned char value)
+{
+ unsigned char outval;
+
+ outb(EOC | reg, port + PAR_DATA); /* Reset the address register. */
+ outval = WrAddr | reg;
+ outb(outval, port + PAR_DATA);
+ outb(outval, port + PAR_DATA); /* Double write for PS/2. */
+
+ outb((outval & 0xf0) | (value & 0x0f), port + PAR_DATA);
+ outb(value & 0x0f, port + PAR_DATA);
+ value >>= 4;
+ outb(value, port + PAR_DATA);
+ outb(0x10 | value, port + PAR_DATA);
+ outb(0x10 | value, port + PAR_DATA);
+
+ outb(EOC | value, port + PAR_DATA); /* Reset the address register. */
+}
+
+/* Bulk data writes to the packet buffer. The interrupt line remains enabled.
+ * The first, faster method uses only the dataport (data modes 0, 2 & 4).
+ * The second (backup) method uses data and control regs (modes 1, 3 & 5).
+ * It should only be needed when there is skew between the individual data
+ * lines.
+ */
+static inline void write_byte_mode0(short ioaddr, unsigned char value)
+{
+ outb(value & 0x0f, ioaddr + PAR_DATA);
+ outb((value>>4) | 0x10, ioaddr + PAR_DATA);
+}
+
+static inline void write_byte_mode1(short ioaddr, unsigned char value)
+{
+ outb(value & 0x0f, ioaddr + PAR_DATA);
+ outb(Ctrl_IRQEN | Ctrl_LNibWrite, ioaddr + PAR_CONTROL);
+ outb((value>>4) | 0x10, ioaddr + PAR_DATA);
+ outb(Ctrl_IRQEN | Ctrl_HNibWrite, ioaddr + PAR_CONTROL);
+}
+
+/* Write 16bit VALUE to the packet buffer: the same as above just doubled. */
+static inline void write_word_mode0(short ioaddr, unsigned short value)
+{
+ outb(value & 0x0f, ioaddr + PAR_DATA);
+ value >>= 4;
+ outb((value & 0x0f) | 0x10, ioaddr + PAR_DATA);
+ value >>= 4;
+ outb(value & 0x0f, ioaddr + PAR_DATA);
+ value >>= 4;
+ outb((value & 0x0f) | 0x10, ioaddr + PAR_DATA);
+}
+
+/* EEPROM_Ctrl bits. */
+#define EE_SHIFT_CLK 0x04 /* EEPROM shift clock. */
+#define EE_CS 0x02 /* EEPROM chip select. */
+#define EE_CLK_HIGH 0x12
+#define EE_CLK_LOW 0x16
+#define EE_DATA_WRITE 0x01 /* EEPROM chip data in. */
+#define EE_DATA_READ 0x08 /* EEPROM chip data out. */
+
+/* The EEPROM commands include the alway-set leading bit. */
+#define EE_WRITE_CMD(offset) (((5 << 6) + (offset)) << 17)
+#define EE_READ(offset) (((6 << 6) + (offset)) << 17)
+#define EE_ERASE(offset) (((7 << 6) + (offset)) << 17)
+#define EE_CMD_SIZE 27 /* The command+address+data size. */
diff --git a/drivers/net/ethernet/realtek/r8169.h b/drivers/net/ethernet/realtek/r8169.h
new file mode 100644
index 000000000..55ef8251f
--- /dev/null
+++ b/drivers/net/ethernet/realtek/r8169.h
@@ -0,0 +1,79 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* r8169.h: RealTek 8169/8168/8101 ethernet driver.
+ *
+ * Copyright (c) 2002 ShuChen <shuchen@realtek.com.tw>
+ * Copyright (c) 2003 - 2007 Francois Romieu <romieu@fr.zoreil.com>
+ * Copyright (c) a lot of people too. Please respect their work.
+ *
+ * See MAINTAINERS file for support contact information.
+ */
+
+#include <linux/types.h>
+#include <linux/phy.h>
+
+enum mac_version {
+ /* support for ancient RTL_GIGA_MAC_VER_01 has been removed */
+ RTL_GIGA_MAC_VER_02,
+ RTL_GIGA_MAC_VER_03,
+ RTL_GIGA_MAC_VER_04,
+ RTL_GIGA_MAC_VER_05,
+ RTL_GIGA_MAC_VER_06,
+ RTL_GIGA_MAC_VER_07,
+ RTL_GIGA_MAC_VER_08,
+ RTL_GIGA_MAC_VER_09,
+ RTL_GIGA_MAC_VER_10,
+ RTL_GIGA_MAC_VER_11,
+ /* RTL_GIGA_MAC_VER_12 was handled the same as VER_17 */
+ /* RTL_GIGA_MAC_VER_13 was merged with VER_10 */
+ RTL_GIGA_MAC_VER_14,
+ /* RTL_GIGA_MAC_VER_16 was merged with VER_10 */
+ RTL_GIGA_MAC_VER_17,
+ RTL_GIGA_MAC_VER_18,
+ RTL_GIGA_MAC_VER_19,
+ RTL_GIGA_MAC_VER_20,
+ RTL_GIGA_MAC_VER_21,
+ RTL_GIGA_MAC_VER_22,
+ RTL_GIGA_MAC_VER_23,
+ RTL_GIGA_MAC_VER_24,
+ RTL_GIGA_MAC_VER_25,
+ RTL_GIGA_MAC_VER_26,
+ /* support for RTL_GIGA_MAC_VER_27 has been removed */
+ RTL_GIGA_MAC_VER_28,
+ RTL_GIGA_MAC_VER_29,
+ RTL_GIGA_MAC_VER_30,
+ RTL_GIGA_MAC_VER_31,
+ RTL_GIGA_MAC_VER_32,
+ RTL_GIGA_MAC_VER_33,
+ RTL_GIGA_MAC_VER_34,
+ RTL_GIGA_MAC_VER_35,
+ RTL_GIGA_MAC_VER_36,
+ RTL_GIGA_MAC_VER_37,
+ RTL_GIGA_MAC_VER_38,
+ RTL_GIGA_MAC_VER_39,
+ RTL_GIGA_MAC_VER_40,
+ /* support for RTL_GIGA_MAC_VER_41 has been removed */
+ RTL_GIGA_MAC_VER_42,
+ RTL_GIGA_MAC_VER_43,
+ RTL_GIGA_MAC_VER_44,
+ /* support for RTL_GIGA_MAC_VER_45 has been removed */
+ RTL_GIGA_MAC_VER_46,
+ /* support for RTL_GIGA_MAC_VER_47 has been removed */
+ RTL_GIGA_MAC_VER_48,
+ /* support for RTL_GIGA_MAC_VER_49 has been removed */
+ /* support for RTL_GIGA_MAC_VER_50 has been removed */
+ RTL_GIGA_MAC_VER_51,
+ RTL_GIGA_MAC_VER_52,
+ RTL_GIGA_MAC_VER_53,
+ /* support for RTL_GIGA_MAC_VER_60 has been removed */
+ RTL_GIGA_MAC_VER_61,
+ RTL_GIGA_MAC_VER_63,
+ RTL_GIGA_MAC_NONE
+};
+
+struct rtl8169_private;
+
+void r8169_apply_firmware(struct rtl8169_private *tp);
+u16 rtl8168h_2_get_adc_bias_ioffset(struct rtl8169_private *tp);
+u8 rtl8168d_efuse_read(struct rtl8169_private *tp, int reg_addr);
+void r8169_hw_phy_config(struct rtl8169_private *tp, struct phy_device *phydev,
+ enum mac_version ver);
diff --git a/drivers/net/ethernet/realtek/r8169_firmware.c b/drivers/net/ethernet/realtek/r8169_firmware.c
new file mode 100644
index 000000000..cbc6b846d
--- /dev/null
+++ b/drivers/net/ethernet/realtek/r8169_firmware.c
@@ -0,0 +1,236 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/* r8169_firmware.c: RealTek 8169/8168/8101 ethernet driver.
+ *
+ * Copyright (c) 2002 ShuChen <shuchen@realtek.com.tw>
+ * Copyright (c) 2003 - 2007 Francois Romieu <romieu@fr.zoreil.com>
+ * Copyright (c) a lot of people too. Please respect their work.
+ *
+ * See MAINTAINERS file for support contact information.
+ */
+
+#include <linux/delay.h>
+#include <linux/firmware.h>
+
+#include "r8169_firmware.h"
+
+enum rtl_fw_opcode {
+ PHY_READ = 0x0,
+ PHY_DATA_OR = 0x1,
+ PHY_DATA_AND = 0x2,
+ PHY_BJMPN = 0x3,
+ PHY_MDIO_CHG = 0x4,
+ PHY_CLEAR_READCOUNT = 0x7,
+ PHY_WRITE = 0x8,
+ PHY_READCOUNT_EQ_SKIP = 0x9,
+ PHY_COMP_EQ_SKIPN = 0xa,
+ PHY_COMP_NEQ_SKIPN = 0xb,
+ PHY_WRITE_PREVIOUS = 0xc,
+ PHY_SKIPN = 0xd,
+ PHY_DELAY_MS = 0xe,
+};
+
+struct fw_info {
+ u32 magic;
+ char version[RTL_VER_SIZE];
+ __le32 fw_start;
+ __le32 fw_len;
+ u8 chksum;
+} __packed;
+
+#define FW_OPCODE_SIZE sizeof_field(struct rtl_fw_phy_action, code[0])
+
+static bool rtl_fw_format_ok(struct rtl_fw *rtl_fw)
+{
+ const struct firmware *fw = rtl_fw->fw;
+ struct fw_info *fw_info = (struct fw_info *)fw->data;
+ struct rtl_fw_phy_action *pa = &rtl_fw->phy_action;
+
+ if (fw->size < FW_OPCODE_SIZE)
+ return false;
+
+ if (!fw_info->magic) {
+ size_t i, size, start;
+ u8 checksum = 0;
+
+ if (fw->size < sizeof(*fw_info))
+ return false;
+
+ for (i = 0; i < fw->size; i++)
+ checksum += fw->data[i];
+ if (checksum != 0)
+ return false;
+
+ start = le32_to_cpu(fw_info->fw_start);
+ if (start > fw->size)
+ return false;
+
+ size = le32_to_cpu(fw_info->fw_len);
+ if (size > (fw->size - start) / FW_OPCODE_SIZE)
+ return false;
+
+ strscpy(rtl_fw->version, fw_info->version, RTL_VER_SIZE);
+
+ pa->code = (__le32 *)(fw->data + start);
+ pa->size = size;
+ } else {
+ if (fw->size % FW_OPCODE_SIZE)
+ return false;
+
+ strscpy(rtl_fw->version, rtl_fw->fw_name, RTL_VER_SIZE);
+
+ pa->code = (__le32 *)fw->data;
+ pa->size = fw->size / FW_OPCODE_SIZE;
+ }
+
+ return true;
+}
+
+static bool rtl_fw_data_ok(struct rtl_fw *rtl_fw)
+{
+ struct rtl_fw_phy_action *pa = &rtl_fw->phy_action;
+ size_t index;
+
+ for (index = 0; index < pa->size; index++) {
+ u32 action = le32_to_cpu(pa->code[index]);
+ u32 val = action & 0x0000ffff;
+ u32 regno = (action & 0x0fff0000) >> 16;
+
+ switch (action >> 28) {
+ case PHY_READ:
+ case PHY_DATA_OR:
+ case PHY_DATA_AND:
+ case PHY_CLEAR_READCOUNT:
+ case PHY_WRITE:
+ case PHY_WRITE_PREVIOUS:
+ case PHY_DELAY_MS:
+ break;
+
+ case PHY_MDIO_CHG:
+ if (val > 1)
+ goto out;
+ break;
+
+ case PHY_BJMPN:
+ if (regno > index)
+ goto out;
+ break;
+ case PHY_READCOUNT_EQ_SKIP:
+ if (index + 2 >= pa->size)
+ goto out;
+ break;
+ case PHY_COMP_EQ_SKIPN:
+ case PHY_COMP_NEQ_SKIPN:
+ case PHY_SKIPN:
+ if (index + 1 + regno >= pa->size)
+ goto out;
+ break;
+
+ default:
+ dev_err(rtl_fw->dev, "Invalid action 0x%08x\n", action);
+ return false;
+ }
+ }
+
+ return true;
+out:
+ dev_err(rtl_fw->dev, "Out of range of firmware\n");
+ return false;
+}
+
+void rtl_fw_write_firmware(struct rtl8169_private *tp, struct rtl_fw *rtl_fw)
+{
+ struct rtl_fw_phy_action *pa = &rtl_fw->phy_action;
+ rtl_fw_write_t fw_write = rtl_fw->phy_write;
+ rtl_fw_read_t fw_read = rtl_fw->phy_read;
+ int predata = 0, count = 0;
+ size_t index;
+
+ for (index = 0; index < pa->size; index++) {
+ u32 action = le32_to_cpu(pa->code[index]);
+ u32 data = action & 0x0000ffff;
+ u32 regno = (action & 0x0fff0000) >> 16;
+ enum rtl_fw_opcode opcode = action >> 28;
+
+ if (!action)
+ break;
+
+ switch (opcode) {
+ case PHY_READ:
+ predata = fw_read(tp, regno);
+ count++;
+ break;
+ case PHY_DATA_OR:
+ predata |= data;
+ break;
+ case PHY_DATA_AND:
+ predata &= data;
+ break;
+ case PHY_BJMPN:
+ index -= (regno + 1);
+ break;
+ case PHY_MDIO_CHG:
+ if (data) {
+ fw_write = rtl_fw->mac_mcu_write;
+ fw_read = rtl_fw->mac_mcu_read;
+ } else {
+ fw_write = rtl_fw->phy_write;
+ fw_read = rtl_fw->phy_read;
+ }
+
+ break;
+ case PHY_CLEAR_READCOUNT:
+ count = 0;
+ break;
+ case PHY_WRITE:
+ fw_write(tp, regno, data);
+ break;
+ case PHY_READCOUNT_EQ_SKIP:
+ if (count == data)
+ index++;
+ break;
+ case PHY_COMP_EQ_SKIPN:
+ if (predata == data)
+ index += regno;
+ break;
+ case PHY_COMP_NEQ_SKIPN:
+ if (predata != data)
+ index += regno;
+ break;
+ case PHY_WRITE_PREVIOUS:
+ fw_write(tp, regno, predata);
+ break;
+ case PHY_SKIPN:
+ index += regno;
+ break;
+ case PHY_DELAY_MS:
+ msleep(data);
+ break;
+ }
+ }
+}
+
+void rtl_fw_release_firmware(struct rtl_fw *rtl_fw)
+{
+ release_firmware(rtl_fw->fw);
+}
+
+int rtl_fw_request_firmware(struct rtl_fw *rtl_fw)
+{
+ int rc;
+
+ rc = request_firmware(&rtl_fw->fw, rtl_fw->fw_name, rtl_fw->dev);
+ if (rc < 0)
+ goto out;
+
+ if (!rtl_fw_format_ok(rtl_fw) || !rtl_fw_data_ok(rtl_fw)) {
+ release_firmware(rtl_fw->fw);
+ rc = -EINVAL;
+ goto out;
+ }
+
+ return 0;
+out:
+ dev_err(rtl_fw->dev, "Unable to load firmware %s (%d)\n",
+ rtl_fw->fw_name, rc);
+ return rc;
+}
diff --git a/drivers/net/ethernet/realtek/r8169_firmware.h b/drivers/net/ethernet/realtek/r8169_firmware.h
new file mode 100644
index 000000000..7dc348ed8
--- /dev/null
+++ b/drivers/net/ethernet/realtek/r8169_firmware.h
@@ -0,0 +1,39 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* r8169_firmware.h: RealTek 8169/8168/8101 ethernet driver.
+ *
+ * Copyright (c) 2002 ShuChen <shuchen@realtek.com.tw>
+ * Copyright (c) 2003 - 2007 Francois Romieu <romieu@fr.zoreil.com>
+ * Copyright (c) a lot of people too. Please respect their work.
+ *
+ * See MAINTAINERS file for support contact information.
+ */
+
+#include <linux/device.h>
+#include <linux/firmware.h>
+
+struct rtl8169_private;
+typedef void (*rtl_fw_write_t)(struct rtl8169_private *tp, int reg, int val);
+typedef int (*rtl_fw_read_t)(struct rtl8169_private *tp, int reg);
+
+#define RTL_VER_SIZE 32
+
+struct rtl_fw {
+ rtl_fw_write_t phy_write;
+ rtl_fw_read_t phy_read;
+ rtl_fw_write_t mac_mcu_write;
+ rtl_fw_read_t mac_mcu_read;
+ const struct firmware *fw;
+ const char *fw_name;
+ struct device *dev;
+
+ char version[RTL_VER_SIZE];
+
+ struct rtl_fw_phy_action {
+ __le32 *code;
+ size_t size;
+ } phy_action;
+};
+
+int rtl_fw_request_firmware(struct rtl_fw *rtl_fw);
+void rtl_fw_release_firmware(struct rtl_fw *rtl_fw);
+void rtl_fw_write_firmware(struct rtl8169_private *tp, struct rtl_fw *rtl_fw);
diff --git a/drivers/net/ethernet/realtek/r8169_main.c b/drivers/net/ethernet/realtek/r8169_main.c
new file mode 100644
index 000000000..06663c11c
--- /dev/null
+++ b/drivers/net/ethernet/realtek/r8169_main.c
@@ -0,0 +1,5389 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * r8169.c: RealTek 8169/8168/8101 ethernet driver.
+ *
+ * Copyright (c) 2002 ShuChen <shuchen@realtek.com.tw>
+ * Copyright (c) 2003 - 2007 Francois Romieu <romieu@fr.zoreil.com>
+ * Copyright (c) a lot of people too. Please respect their work.
+ *
+ * See MAINTAINERS file for support contact information.
+ */
+
+#include <linux/module.h>
+#include <linux/pci.h>
+#include <linux/netdevice.h>
+#include <linux/etherdevice.h>
+#include <linux/clk.h>
+#include <linux/delay.h>
+#include <linux/ethtool.h>
+#include <linux/phy.h>
+#include <linux/if_vlan.h>
+#include <linux/in.h>
+#include <linux/io.h>
+#include <linux/ip.h>
+#include <linux/tcp.h>
+#include <linux/interrupt.h>
+#include <linux/dma-mapping.h>
+#include <linux/pm_runtime.h>
+#include <linux/bitfield.h>
+#include <linux/prefetch.h>
+#include <linux/ipv6.h>
+#include <asm/unaligned.h>
+#include <net/ip6_checksum.h>
+
+#include "r8169.h"
+#include "r8169_firmware.h"
+
+#define FIRMWARE_8168D_1 "rtl_nic/rtl8168d-1.fw"
+#define FIRMWARE_8168D_2 "rtl_nic/rtl8168d-2.fw"
+#define FIRMWARE_8168E_1 "rtl_nic/rtl8168e-1.fw"
+#define FIRMWARE_8168E_2 "rtl_nic/rtl8168e-2.fw"
+#define FIRMWARE_8168E_3 "rtl_nic/rtl8168e-3.fw"
+#define FIRMWARE_8168F_1 "rtl_nic/rtl8168f-1.fw"
+#define FIRMWARE_8168F_2 "rtl_nic/rtl8168f-2.fw"
+#define FIRMWARE_8105E_1 "rtl_nic/rtl8105e-1.fw"
+#define FIRMWARE_8402_1 "rtl_nic/rtl8402-1.fw"
+#define FIRMWARE_8411_1 "rtl_nic/rtl8411-1.fw"
+#define FIRMWARE_8411_2 "rtl_nic/rtl8411-2.fw"
+#define FIRMWARE_8106E_1 "rtl_nic/rtl8106e-1.fw"
+#define FIRMWARE_8106E_2 "rtl_nic/rtl8106e-2.fw"
+#define FIRMWARE_8168G_2 "rtl_nic/rtl8168g-2.fw"
+#define FIRMWARE_8168G_3 "rtl_nic/rtl8168g-3.fw"
+#define FIRMWARE_8168H_2 "rtl_nic/rtl8168h-2.fw"
+#define FIRMWARE_8168FP_3 "rtl_nic/rtl8168fp-3.fw"
+#define FIRMWARE_8107E_2 "rtl_nic/rtl8107e-2.fw"
+#define FIRMWARE_8125A_3 "rtl_nic/rtl8125a-3.fw"
+#define FIRMWARE_8125B_2 "rtl_nic/rtl8125b-2.fw"
+
+/* Maximum number of multicast addresses to filter (vs. Rx-all-multicast).
+ The RTL chips use a 64 element hash table based on the Ethernet CRC. */
+#define MC_FILTER_LIMIT 32
+
+#define TX_DMA_BURST 7 /* Maximum PCI burst, '7' is unlimited */
+#define InterFrameGap 0x03 /* 3 means InterFrameGap = the shortest one */
+
+#define R8169_REGS_SIZE 256
+#define R8169_RX_BUF_SIZE (SZ_16K - 1)
+#define NUM_TX_DESC 256 /* Number of Tx descriptor registers */
+#define NUM_RX_DESC 256 /* Number of Rx descriptor registers */
+#define R8169_TX_RING_BYTES (NUM_TX_DESC * sizeof(struct TxDesc))
+#define R8169_RX_RING_BYTES (NUM_RX_DESC * sizeof(struct RxDesc))
+
+#define OCP_STD_PHY_BASE 0xa400
+
+#define RTL_CFG_NO_GBIT 1
+
+/* write/read MMIO register */
+#define RTL_W8(tp, reg, val8) writeb((val8), tp->mmio_addr + (reg))
+#define RTL_W16(tp, reg, val16) writew((val16), tp->mmio_addr + (reg))
+#define RTL_W32(tp, reg, val32) writel((val32), tp->mmio_addr + (reg))
+#define RTL_R8(tp, reg) readb(tp->mmio_addr + (reg))
+#define RTL_R16(tp, reg) readw(tp->mmio_addr + (reg))
+#define RTL_R32(tp, reg) readl(tp->mmio_addr + (reg))
+
+#define JUMBO_4K (4 * SZ_1K - VLAN_ETH_HLEN - ETH_FCS_LEN)
+#define JUMBO_6K (6 * SZ_1K - VLAN_ETH_HLEN - ETH_FCS_LEN)
+#define JUMBO_7K (7 * SZ_1K - VLAN_ETH_HLEN - ETH_FCS_LEN)
+#define JUMBO_9K (9 * SZ_1K - VLAN_ETH_HLEN - ETH_FCS_LEN)
+
+static const struct {
+ const char *name;
+ const char *fw_name;
+} rtl_chip_infos[] = {
+ /* PCI devices. */
+ [RTL_GIGA_MAC_VER_02] = {"RTL8169s" },
+ [RTL_GIGA_MAC_VER_03] = {"RTL8110s" },
+ [RTL_GIGA_MAC_VER_04] = {"RTL8169sb/8110sb" },
+ [RTL_GIGA_MAC_VER_05] = {"RTL8169sc/8110sc" },
+ [RTL_GIGA_MAC_VER_06] = {"RTL8169sc/8110sc" },
+ /* PCI-E devices. */
+ [RTL_GIGA_MAC_VER_07] = {"RTL8102e" },
+ [RTL_GIGA_MAC_VER_08] = {"RTL8102e" },
+ [RTL_GIGA_MAC_VER_09] = {"RTL8102e/RTL8103e" },
+ [RTL_GIGA_MAC_VER_10] = {"RTL8101e/RTL8100e" },
+ [RTL_GIGA_MAC_VER_11] = {"RTL8168b/8111b" },
+ [RTL_GIGA_MAC_VER_14] = {"RTL8401" },
+ [RTL_GIGA_MAC_VER_17] = {"RTL8168b/8111b" },
+ [RTL_GIGA_MAC_VER_18] = {"RTL8168cp/8111cp" },
+ [RTL_GIGA_MAC_VER_19] = {"RTL8168c/8111c" },
+ [RTL_GIGA_MAC_VER_20] = {"RTL8168c/8111c" },
+ [RTL_GIGA_MAC_VER_21] = {"RTL8168c/8111c" },
+ [RTL_GIGA_MAC_VER_22] = {"RTL8168c/8111c" },
+ [RTL_GIGA_MAC_VER_23] = {"RTL8168cp/8111cp" },
+ [RTL_GIGA_MAC_VER_24] = {"RTL8168cp/8111cp" },
+ [RTL_GIGA_MAC_VER_25] = {"RTL8168d/8111d", FIRMWARE_8168D_1},
+ [RTL_GIGA_MAC_VER_26] = {"RTL8168d/8111d", FIRMWARE_8168D_2},
+ [RTL_GIGA_MAC_VER_28] = {"RTL8168dp/8111dp" },
+ [RTL_GIGA_MAC_VER_29] = {"RTL8105e", FIRMWARE_8105E_1},
+ [RTL_GIGA_MAC_VER_30] = {"RTL8105e", FIRMWARE_8105E_1},
+ [RTL_GIGA_MAC_VER_31] = {"RTL8168dp/8111dp" },
+ [RTL_GIGA_MAC_VER_32] = {"RTL8168e/8111e", FIRMWARE_8168E_1},
+ [RTL_GIGA_MAC_VER_33] = {"RTL8168e/8111e", FIRMWARE_8168E_2},
+ [RTL_GIGA_MAC_VER_34] = {"RTL8168evl/8111evl", FIRMWARE_8168E_3},
+ [RTL_GIGA_MAC_VER_35] = {"RTL8168f/8111f", FIRMWARE_8168F_1},
+ [RTL_GIGA_MAC_VER_36] = {"RTL8168f/8111f", FIRMWARE_8168F_2},
+ [RTL_GIGA_MAC_VER_37] = {"RTL8402", FIRMWARE_8402_1 },
+ [RTL_GIGA_MAC_VER_38] = {"RTL8411", FIRMWARE_8411_1 },
+ [RTL_GIGA_MAC_VER_39] = {"RTL8106e", FIRMWARE_8106E_1},
+ [RTL_GIGA_MAC_VER_40] = {"RTL8168g/8111g", FIRMWARE_8168G_2},
+ [RTL_GIGA_MAC_VER_42] = {"RTL8168gu/8111gu", FIRMWARE_8168G_3},
+ [RTL_GIGA_MAC_VER_43] = {"RTL8106eus", FIRMWARE_8106E_2},
+ [RTL_GIGA_MAC_VER_44] = {"RTL8411b", FIRMWARE_8411_2 },
+ [RTL_GIGA_MAC_VER_46] = {"RTL8168h/8111h", FIRMWARE_8168H_2},
+ [RTL_GIGA_MAC_VER_48] = {"RTL8107e", FIRMWARE_8107E_2},
+ [RTL_GIGA_MAC_VER_51] = {"RTL8168ep/8111ep" },
+ [RTL_GIGA_MAC_VER_52] = {"RTL8168fp/RTL8117", FIRMWARE_8168FP_3},
+ [RTL_GIGA_MAC_VER_53] = {"RTL8168fp/RTL8117", },
+ [RTL_GIGA_MAC_VER_61] = {"RTL8125A", FIRMWARE_8125A_3},
+ /* reserve 62 for CFG_METHOD_4 in the vendor driver */
+ [RTL_GIGA_MAC_VER_63] = {"RTL8125B", FIRMWARE_8125B_2},
+};
+
+static const struct pci_device_id rtl8169_pci_tbl[] = {
+ { PCI_VDEVICE(REALTEK, 0x2502) },
+ { PCI_VDEVICE(REALTEK, 0x2600) },
+ { PCI_VDEVICE(REALTEK, 0x8129) },
+ { PCI_VDEVICE(REALTEK, 0x8136), RTL_CFG_NO_GBIT },
+ { PCI_VDEVICE(REALTEK, 0x8161) },
+ { PCI_VDEVICE(REALTEK, 0x8162) },
+ { PCI_VDEVICE(REALTEK, 0x8167) },
+ { PCI_VDEVICE(REALTEK, 0x8168) },
+ { PCI_VDEVICE(NCUBE, 0x8168) },
+ { PCI_VDEVICE(REALTEK, 0x8169) },
+ { PCI_VENDOR_ID_DLINK, 0x4300,
+ PCI_VENDOR_ID_DLINK, 0x4b10, 0, 0 },
+ { PCI_VDEVICE(DLINK, 0x4300) },
+ { PCI_VDEVICE(DLINK, 0x4302) },
+ { PCI_VDEVICE(AT, 0xc107) },
+ { PCI_VDEVICE(USR, 0x0116) },
+ { PCI_VENDOR_ID_LINKSYS, 0x1032, PCI_ANY_ID, 0x0024 },
+ { 0x0001, 0x8168, PCI_ANY_ID, 0x2410 },
+ { PCI_VDEVICE(REALTEK, 0x8125) },
+ { PCI_VDEVICE(REALTEK, 0x3000) },
+ {}
+};
+
+MODULE_DEVICE_TABLE(pci, rtl8169_pci_tbl);
+
+enum rtl_registers {
+ MAC0 = 0, /* Ethernet hardware address. */
+ MAC4 = 4,
+ MAR0 = 8, /* Multicast filter. */
+ CounterAddrLow = 0x10,
+ CounterAddrHigh = 0x14,
+ TxDescStartAddrLow = 0x20,
+ TxDescStartAddrHigh = 0x24,
+ TxHDescStartAddrLow = 0x28,
+ TxHDescStartAddrHigh = 0x2c,
+ FLASH = 0x30,
+ ERSR = 0x36,
+ ChipCmd = 0x37,
+ TxPoll = 0x38,
+ IntrMask = 0x3c,
+ IntrStatus = 0x3e,
+
+ TxConfig = 0x40,
+#define TXCFG_AUTO_FIFO (1 << 7) /* 8111e-vl */
+#define TXCFG_EMPTY (1 << 11) /* 8111e-vl */
+
+ RxConfig = 0x44,
+#define RX128_INT_EN (1 << 15) /* 8111c and later */
+#define RX_MULTI_EN (1 << 14) /* 8111c only */
+#define RXCFG_FIFO_SHIFT 13
+ /* No threshold before first PCI xfer */
+#define RX_FIFO_THRESH (7 << RXCFG_FIFO_SHIFT)
+#define RX_EARLY_OFF (1 << 11)
+#define RX_PAUSE_SLOT_ON (1 << 11) /* 8125b and later */
+#define RXCFG_DMA_SHIFT 8
+ /* Unlimited maximum PCI burst. */
+#define RX_DMA_BURST (7 << RXCFG_DMA_SHIFT)
+
+ Cfg9346 = 0x50,
+ Config0 = 0x51,
+ Config1 = 0x52,
+ Config2 = 0x53,
+#define PME_SIGNAL (1 << 5) /* 8168c and later */
+
+ Config3 = 0x54,
+ Config4 = 0x55,
+ Config5 = 0x56,
+ PHYAR = 0x60,
+ PHYstatus = 0x6c,
+ RxMaxSize = 0xda,
+ CPlusCmd = 0xe0,
+ IntrMitigate = 0xe2,
+
+#define RTL_COALESCE_TX_USECS GENMASK(15, 12)
+#define RTL_COALESCE_TX_FRAMES GENMASK(11, 8)
+#define RTL_COALESCE_RX_USECS GENMASK(7, 4)
+#define RTL_COALESCE_RX_FRAMES GENMASK(3, 0)
+
+#define RTL_COALESCE_T_MAX 0x0fU
+#define RTL_COALESCE_FRAME_MAX (RTL_COALESCE_T_MAX * 4)
+
+ RxDescAddrLow = 0xe4,
+ RxDescAddrHigh = 0xe8,
+ EarlyTxThres = 0xec, /* 8169. Unit of 32 bytes. */
+
+#define NoEarlyTx 0x3f /* Max value : no early transmit. */
+
+ MaxTxPacketSize = 0xec, /* 8101/8168. Unit of 128 bytes. */
+
+#define TxPacketMax (8064 >> 7)
+#define EarlySize 0x27
+
+ FuncEvent = 0xf0,
+ FuncEventMask = 0xf4,
+ FuncPresetState = 0xf8,
+ IBCR0 = 0xf8,
+ IBCR2 = 0xf9,
+ IBIMR0 = 0xfa,
+ IBISR0 = 0xfb,
+ FuncForceEvent = 0xfc,
+};
+
+enum rtl8168_8101_registers {
+ CSIDR = 0x64,
+ CSIAR = 0x68,
+#define CSIAR_FLAG 0x80000000
+#define CSIAR_WRITE_CMD 0x80000000
+#define CSIAR_BYTE_ENABLE 0x0000f000
+#define CSIAR_ADDR_MASK 0x00000fff
+ PMCH = 0x6f,
+#define D3COLD_NO_PLL_DOWN BIT(7)
+#define D3HOT_NO_PLL_DOWN BIT(6)
+#define D3_NO_PLL_DOWN (BIT(7) | BIT(6))
+ EPHYAR = 0x80,
+#define EPHYAR_FLAG 0x80000000
+#define EPHYAR_WRITE_CMD 0x80000000
+#define EPHYAR_REG_MASK 0x1f
+#define EPHYAR_REG_SHIFT 16
+#define EPHYAR_DATA_MASK 0xffff
+ DLLPR = 0xd0,
+#define PFM_EN (1 << 6)
+#define TX_10M_PS_EN (1 << 7)
+ DBG_REG = 0xd1,
+#define FIX_NAK_1 (1 << 4)
+#define FIX_NAK_2 (1 << 3)
+ TWSI = 0xd2,
+ MCU = 0xd3,
+#define NOW_IS_OOB (1 << 7)
+#define TX_EMPTY (1 << 5)
+#define RX_EMPTY (1 << 4)
+#define RXTX_EMPTY (TX_EMPTY | RX_EMPTY)
+#define EN_NDP (1 << 3)
+#define EN_OOB_RESET (1 << 2)
+#define LINK_LIST_RDY (1 << 1)
+ EFUSEAR = 0xdc,
+#define EFUSEAR_FLAG 0x80000000
+#define EFUSEAR_WRITE_CMD 0x80000000
+#define EFUSEAR_READ_CMD 0x00000000
+#define EFUSEAR_REG_MASK 0x03ff
+#define EFUSEAR_REG_SHIFT 8
+#define EFUSEAR_DATA_MASK 0xff
+ MISC_1 = 0xf2,
+#define PFM_D3COLD_EN (1 << 6)
+};
+
+enum rtl8168_registers {
+ LED_FREQ = 0x1a,
+ EEE_LED = 0x1b,
+ ERIDR = 0x70,
+ ERIAR = 0x74,
+#define ERIAR_FLAG 0x80000000
+#define ERIAR_WRITE_CMD 0x80000000
+#define ERIAR_READ_CMD 0x00000000
+#define ERIAR_ADDR_BYTE_ALIGN 4
+#define ERIAR_TYPE_SHIFT 16
+#define ERIAR_EXGMAC (0x00 << ERIAR_TYPE_SHIFT)
+#define ERIAR_MSIX (0x01 << ERIAR_TYPE_SHIFT)
+#define ERIAR_ASF (0x02 << ERIAR_TYPE_SHIFT)
+#define ERIAR_OOB (0x02 << ERIAR_TYPE_SHIFT)
+#define ERIAR_MASK_SHIFT 12
+#define ERIAR_MASK_0001 (0x1 << ERIAR_MASK_SHIFT)
+#define ERIAR_MASK_0011 (0x3 << ERIAR_MASK_SHIFT)
+#define ERIAR_MASK_0100 (0x4 << ERIAR_MASK_SHIFT)
+#define ERIAR_MASK_0101 (0x5 << ERIAR_MASK_SHIFT)
+#define ERIAR_MASK_1111 (0xf << ERIAR_MASK_SHIFT)
+ EPHY_RXER_NUM = 0x7c,
+ OCPDR = 0xb0, /* OCP GPHY access */
+#define OCPDR_WRITE_CMD 0x80000000
+#define OCPDR_READ_CMD 0x00000000
+#define OCPDR_REG_MASK 0x7f
+#define OCPDR_GPHY_REG_SHIFT 16
+#define OCPDR_DATA_MASK 0xffff
+ OCPAR = 0xb4,
+#define OCPAR_FLAG 0x80000000
+#define OCPAR_GPHY_WRITE_CMD 0x8000f060
+#define OCPAR_GPHY_READ_CMD 0x0000f060
+ GPHY_OCP = 0xb8,
+ RDSAR1 = 0xd0, /* 8168c only. Undocumented on 8168dp */
+ MISC = 0xf0, /* 8168e only. */
+#define TXPLA_RST (1 << 29)
+#define DISABLE_LAN_EN (1 << 23) /* Enable GPIO pin */
+#define PWM_EN (1 << 22)
+#define RXDV_GATED_EN (1 << 19)
+#define EARLY_TALLY_EN (1 << 16)
+};
+
+enum rtl8125_registers {
+ IntrMask_8125 = 0x38,
+ IntrStatus_8125 = 0x3c,
+ TxPoll_8125 = 0x90,
+ MAC0_BKP = 0x19e0,
+ EEE_TXIDLE_TIMER_8125 = 0x6048,
+};
+
+#define RX_VLAN_INNER_8125 BIT(22)
+#define RX_VLAN_OUTER_8125 BIT(23)
+#define RX_VLAN_8125 (RX_VLAN_INNER_8125 | RX_VLAN_OUTER_8125)
+
+#define RX_FETCH_DFLT_8125 (8 << 27)
+
+enum rtl_register_content {
+ /* InterruptStatusBits */
+ SYSErr = 0x8000,
+ PCSTimeout = 0x4000,
+ SWInt = 0x0100,
+ TxDescUnavail = 0x0080,
+ RxFIFOOver = 0x0040,
+ LinkChg = 0x0020,
+ RxOverflow = 0x0010,
+ TxErr = 0x0008,
+ TxOK = 0x0004,
+ RxErr = 0x0002,
+ RxOK = 0x0001,
+
+ /* RxStatusDesc */
+ RxRWT = (1 << 22),
+ RxRES = (1 << 21),
+ RxRUNT = (1 << 20),
+ RxCRC = (1 << 19),
+
+ /* ChipCmdBits */
+ StopReq = 0x80,
+ CmdReset = 0x10,
+ CmdRxEnb = 0x08,
+ CmdTxEnb = 0x04,
+ RxBufEmpty = 0x01,
+
+ /* TXPoll register p.5 */
+ HPQ = 0x80, /* Poll cmd on the high prio queue */
+ NPQ = 0x40, /* Poll cmd on the low prio queue */
+ FSWInt = 0x01, /* Forced software interrupt */
+
+ /* Cfg9346Bits */
+ Cfg9346_Lock = 0x00,
+ Cfg9346_Unlock = 0xc0,
+
+ /* rx_mode_bits */
+ AcceptErr = 0x20,
+ AcceptRunt = 0x10,
+#define RX_CONFIG_ACCEPT_ERR_MASK 0x30
+ AcceptBroadcast = 0x08,
+ AcceptMulticast = 0x04,
+ AcceptMyPhys = 0x02,
+ AcceptAllPhys = 0x01,
+#define RX_CONFIG_ACCEPT_OK_MASK 0x0f
+#define RX_CONFIG_ACCEPT_MASK 0x3f
+
+ /* TxConfigBits */
+ TxInterFrameGapShift = 24,
+ TxDMAShift = 8, /* DMA burst value (0-7) is shift this many bits */
+
+ /* Config1 register p.24 */
+ LEDS1 = (1 << 7),
+ LEDS0 = (1 << 6),
+ Speed_down = (1 << 4),
+ MEMMAP = (1 << 3),
+ IOMAP = (1 << 2),
+ VPD = (1 << 1),
+ PMEnable = (1 << 0), /* Power Management Enable */
+
+ /* Config2 register p. 25 */
+ ClkReqEn = (1 << 7), /* Clock Request Enable */
+ MSIEnable = (1 << 5), /* 8169 only. Reserved in the 8168. */
+ PCI_Clock_66MHz = 0x01,
+ PCI_Clock_33MHz = 0x00,
+
+ /* Config3 register p.25 */
+ MagicPacket = (1 << 5), /* Wake up when receives a Magic Packet */
+ LinkUp = (1 << 4), /* Wake up when the cable connection is re-established */
+ Jumbo_En0 = (1 << 2), /* 8168 only. Reserved in the 8168b */
+ Rdy_to_L23 = (1 << 1), /* L23 Enable */
+ Beacon_en = (1 << 0), /* 8168 only. Reserved in the 8168b */
+
+ /* Config4 register */
+ Jumbo_En1 = (1 << 1), /* 8168 only. Reserved in the 8168b */
+
+ /* Config5 register p.27 */
+ BWF = (1 << 6), /* Accept Broadcast wakeup frame */
+ MWF = (1 << 5), /* Accept Multicast wakeup frame */
+ UWF = (1 << 4), /* Accept Unicast wakeup frame */
+ Spi_en = (1 << 3),
+ LanWake = (1 << 1), /* LanWake enable/disable */
+ PMEStatus = (1 << 0), /* PME status can be reset by PCI RST# */
+ ASPM_en = (1 << 0), /* ASPM enable */
+
+ /* CPlusCmd p.31 */
+ EnableBist = (1 << 15), // 8168 8101
+ Mac_dbgo_oe = (1 << 14), // 8168 8101
+ EnAnaPLL = (1 << 14), // 8169
+ Normal_mode = (1 << 13), // unused
+ Force_half_dup = (1 << 12), // 8168 8101
+ Force_rxflow_en = (1 << 11), // 8168 8101
+ Force_txflow_en = (1 << 10), // 8168 8101
+ Cxpl_dbg_sel = (1 << 9), // 8168 8101
+ ASF = (1 << 8), // 8168 8101
+ PktCntrDisable = (1 << 7), // 8168 8101
+ Mac_dbgo_sel = 0x001c, // 8168
+ RxVlan = (1 << 6),
+ RxChkSum = (1 << 5),
+ PCIDAC = (1 << 4),
+ PCIMulRW = (1 << 3),
+#define INTT_MASK GENMASK(1, 0)
+#define CPCMD_MASK (Normal_mode | RxVlan | RxChkSum | INTT_MASK)
+
+ /* rtl8169_PHYstatus */
+ TBI_Enable = 0x80,
+ TxFlowCtrl = 0x40,
+ RxFlowCtrl = 0x20,
+ _1000bpsF = 0x10,
+ _100bps = 0x08,
+ _10bps = 0x04,
+ LinkStatus = 0x02,
+ FullDup = 0x01,
+
+ /* ResetCounterCommand */
+ CounterReset = 0x1,
+
+ /* DumpCounterCommand */
+ CounterDump = 0x8,
+
+ /* magic enable v2 */
+ MagicPacket_v2 = (1 << 16), /* Wake up when receives a Magic Packet */
+};
+
+enum rtl_desc_bit {
+ /* First doubleword. */
+ DescOwn = (1 << 31), /* Descriptor is owned by NIC */
+ RingEnd = (1 << 30), /* End of descriptor ring */
+ FirstFrag = (1 << 29), /* First segment of a packet */
+ LastFrag = (1 << 28), /* Final segment of a packet */
+};
+
+/* Generic case. */
+enum rtl_tx_desc_bit {
+ /* First doubleword. */
+ TD_LSO = (1 << 27), /* Large Send Offload */
+#define TD_MSS_MAX 0x07ffu /* MSS value */
+
+ /* Second doubleword. */
+ TxVlanTag = (1 << 17), /* Add VLAN tag */
+};
+
+/* 8169, 8168b and 810x except 8102e. */
+enum rtl_tx_desc_bit_0 {
+ /* First doubleword. */
+#define TD0_MSS_SHIFT 16 /* MSS position (11 bits) */
+ TD0_TCP_CS = (1 << 16), /* Calculate TCP/IP checksum */
+ TD0_UDP_CS = (1 << 17), /* Calculate UDP/IP checksum */
+ TD0_IP_CS = (1 << 18), /* Calculate IP checksum */
+};
+
+/* 8102e, 8168c and beyond. */
+enum rtl_tx_desc_bit_1 {
+ /* First doubleword. */
+ TD1_GTSENV4 = (1 << 26), /* Giant Send for IPv4 */
+ TD1_GTSENV6 = (1 << 25), /* Giant Send for IPv6 */
+#define GTTCPHO_SHIFT 18
+#define GTTCPHO_MAX 0x7f
+
+ /* Second doubleword. */
+#define TCPHO_SHIFT 18
+#define TCPHO_MAX 0x3ff
+#define TD1_MSS_SHIFT 18 /* MSS position (11 bits) */
+ TD1_IPv6_CS = (1 << 28), /* Calculate IPv6 checksum */
+ TD1_IPv4_CS = (1 << 29), /* Calculate IPv4 checksum */
+ TD1_TCP_CS = (1 << 30), /* Calculate TCP/IP checksum */
+ TD1_UDP_CS = (1 << 31), /* Calculate UDP/IP checksum */
+};
+
+enum rtl_rx_desc_bit {
+ /* Rx private */
+ PID1 = (1 << 18), /* Protocol ID bit 1/2 */
+ PID0 = (1 << 17), /* Protocol ID bit 0/2 */
+
+#define RxProtoUDP (PID1)
+#define RxProtoTCP (PID0)
+#define RxProtoIP (PID1 | PID0)
+#define RxProtoMask RxProtoIP
+
+ IPFail = (1 << 16), /* IP checksum failed */
+ UDPFail = (1 << 15), /* UDP/IP checksum failed */
+ TCPFail = (1 << 14), /* TCP/IP checksum failed */
+
+#define RxCSFailMask (IPFail | UDPFail | TCPFail)
+
+ RxVlanTag = (1 << 16), /* VLAN tag available */
+};
+
+#define RTL_GSO_MAX_SIZE_V1 32000
+#define RTL_GSO_MAX_SEGS_V1 24
+#define RTL_GSO_MAX_SIZE_V2 64000
+#define RTL_GSO_MAX_SEGS_V2 64
+
+struct TxDesc {
+ __le32 opts1;
+ __le32 opts2;
+ __le64 addr;
+};
+
+struct RxDesc {
+ __le32 opts1;
+ __le32 opts2;
+ __le64 addr;
+};
+
+struct ring_info {
+ struct sk_buff *skb;
+ u32 len;
+};
+
+struct rtl8169_counters {
+ __le64 tx_packets;
+ __le64 rx_packets;
+ __le64 tx_errors;
+ __le32 rx_errors;
+ __le16 rx_missed;
+ __le16 align_errors;
+ __le32 tx_one_collision;
+ __le32 tx_multi_collision;
+ __le64 rx_unicast;
+ __le64 rx_broadcast;
+ __le32 rx_multicast;
+ __le16 tx_aborted;
+ __le16 tx_underun;
+};
+
+struct rtl8169_tc_offsets {
+ bool inited;
+ __le64 tx_errors;
+ __le32 tx_multi_collision;
+ __le16 tx_aborted;
+ __le16 rx_missed;
+};
+
+enum rtl_flag {
+ RTL_FLAG_TASK_ENABLED = 0,
+ RTL_FLAG_TASK_RESET_PENDING,
+ RTL_FLAG_TASK_RESET_NO_QUEUE_WAKE,
+ RTL_FLAG_TASK_TX_TIMEOUT,
+ RTL_FLAG_MAX
+};
+
+enum rtl_dash_type {
+ RTL_DASH_NONE,
+ RTL_DASH_DP,
+ RTL_DASH_EP,
+};
+
+struct rtl8169_private {
+ void __iomem *mmio_addr; /* memory map physical address */
+ struct pci_dev *pci_dev;
+ struct net_device *dev;
+ struct phy_device *phydev;
+ struct napi_struct napi;
+ enum mac_version mac_version;
+ enum rtl_dash_type dash_type;
+ u32 cur_rx; /* Index into the Rx descriptor buffer of next Rx pkt. */
+ u32 cur_tx; /* Index into the Tx descriptor buffer of next Rx pkt. */
+ u32 dirty_tx;
+ struct TxDesc *TxDescArray; /* 256-aligned Tx descriptor ring */
+ struct RxDesc *RxDescArray; /* 256-aligned Rx descriptor ring */
+ dma_addr_t TxPhyAddr;
+ dma_addr_t RxPhyAddr;
+ struct page *Rx_databuff[NUM_RX_DESC]; /* Rx data buffers */
+ struct ring_info tx_skb[NUM_TX_DESC]; /* Tx data buffers */
+ u16 cp_cmd;
+ u32 irq_mask;
+ int irq;
+ struct clk *clk;
+
+ struct {
+ DECLARE_BITMAP(flags, RTL_FLAG_MAX);
+ struct work_struct work;
+ } wk;
+
+ unsigned supports_gmii:1;
+ unsigned aspm_manageable:1;
+ unsigned dash_enabled:1;
+ dma_addr_t counters_phys_addr;
+ struct rtl8169_counters *counters;
+ struct rtl8169_tc_offsets tc_offset;
+ u32 saved_wolopts;
+ int eee_adv;
+
+ const char *fw_name;
+ struct rtl_fw *rtl_fw;
+
+ u32 ocp_base;
+};
+
+typedef void (*rtl_generic_fct)(struct rtl8169_private *tp);
+
+MODULE_AUTHOR("Realtek and the Linux r8169 crew <netdev@vger.kernel.org>");
+MODULE_DESCRIPTION("RealTek RTL-8169 Gigabit Ethernet driver");
+MODULE_SOFTDEP("pre: realtek");
+MODULE_LICENSE("GPL");
+MODULE_FIRMWARE(FIRMWARE_8168D_1);
+MODULE_FIRMWARE(FIRMWARE_8168D_2);
+MODULE_FIRMWARE(FIRMWARE_8168E_1);
+MODULE_FIRMWARE(FIRMWARE_8168E_2);
+MODULE_FIRMWARE(FIRMWARE_8168E_3);
+MODULE_FIRMWARE(FIRMWARE_8105E_1);
+MODULE_FIRMWARE(FIRMWARE_8168F_1);
+MODULE_FIRMWARE(FIRMWARE_8168F_2);
+MODULE_FIRMWARE(FIRMWARE_8402_1);
+MODULE_FIRMWARE(FIRMWARE_8411_1);
+MODULE_FIRMWARE(FIRMWARE_8411_2);
+MODULE_FIRMWARE(FIRMWARE_8106E_1);
+MODULE_FIRMWARE(FIRMWARE_8106E_2);
+MODULE_FIRMWARE(FIRMWARE_8168G_2);
+MODULE_FIRMWARE(FIRMWARE_8168G_3);
+MODULE_FIRMWARE(FIRMWARE_8168H_2);
+MODULE_FIRMWARE(FIRMWARE_8168FP_3);
+MODULE_FIRMWARE(FIRMWARE_8107E_2);
+MODULE_FIRMWARE(FIRMWARE_8125A_3);
+MODULE_FIRMWARE(FIRMWARE_8125B_2);
+
+static inline struct device *tp_to_dev(struct rtl8169_private *tp)
+{
+ return &tp->pci_dev->dev;
+}
+
+static void rtl_lock_config_regs(struct rtl8169_private *tp)
+{
+ RTL_W8(tp, Cfg9346, Cfg9346_Lock);
+}
+
+static void rtl_unlock_config_regs(struct rtl8169_private *tp)
+{
+ RTL_W8(tp, Cfg9346, Cfg9346_Unlock);
+}
+
+static void rtl_pci_commit(struct rtl8169_private *tp)
+{
+ /* Read an arbitrary register to commit a preceding PCI write */
+ RTL_R8(tp, ChipCmd);
+}
+
+static bool rtl_is_8125(struct rtl8169_private *tp)
+{
+ return tp->mac_version >= RTL_GIGA_MAC_VER_61;
+}
+
+static bool rtl_is_8168evl_up(struct rtl8169_private *tp)
+{
+ return tp->mac_version >= RTL_GIGA_MAC_VER_34 &&
+ tp->mac_version != RTL_GIGA_MAC_VER_39 &&
+ tp->mac_version <= RTL_GIGA_MAC_VER_53;
+}
+
+static bool rtl_supports_eee(struct rtl8169_private *tp)
+{
+ return tp->mac_version >= RTL_GIGA_MAC_VER_34 &&
+ tp->mac_version != RTL_GIGA_MAC_VER_37 &&
+ tp->mac_version != RTL_GIGA_MAC_VER_39;
+}
+
+static void rtl_read_mac_from_reg(struct rtl8169_private *tp, u8 *mac, int reg)
+{
+ int i;
+
+ for (i = 0; i < ETH_ALEN; i++)
+ mac[i] = RTL_R8(tp, reg + i);
+}
+
+struct rtl_cond {
+ bool (*check)(struct rtl8169_private *);
+ const char *msg;
+};
+
+static bool rtl_loop_wait(struct rtl8169_private *tp, const struct rtl_cond *c,
+ unsigned long usecs, int n, bool high)
+{
+ int i;
+
+ for (i = 0; i < n; i++) {
+ if (c->check(tp) == high)
+ return true;
+ fsleep(usecs);
+ }
+
+ if (net_ratelimit())
+ netdev_err(tp->dev, "%s == %d (loop: %d, delay: %lu).\n",
+ c->msg, !high, n, usecs);
+ return false;
+}
+
+static bool rtl_loop_wait_high(struct rtl8169_private *tp,
+ const struct rtl_cond *c,
+ unsigned long d, int n)
+{
+ return rtl_loop_wait(tp, c, d, n, true);
+}
+
+static bool rtl_loop_wait_low(struct rtl8169_private *tp,
+ const struct rtl_cond *c,
+ unsigned long d, int n)
+{
+ return rtl_loop_wait(tp, c, d, n, false);
+}
+
+#define DECLARE_RTL_COND(name) \
+static bool name ## _check(struct rtl8169_private *); \
+ \
+static const struct rtl_cond name = { \
+ .check = name ## _check, \
+ .msg = #name \
+}; \
+ \
+static bool name ## _check(struct rtl8169_private *tp)
+
+static void r8168fp_adjust_ocp_cmd(struct rtl8169_private *tp, u32 *cmd, int type)
+{
+ /* based on RTL8168FP_OOBMAC_BASE in vendor driver */
+ if (type == ERIAR_OOB &&
+ (tp->mac_version == RTL_GIGA_MAC_VER_52 ||
+ tp->mac_version == RTL_GIGA_MAC_VER_53))
+ *cmd |= 0xf70 << 18;
+}
+
+DECLARE_RTL_COND(rtl_eriar_cond)
+{
+ return RTL_R32(tp, ERIAR) & ERIAR_FLAG;
+}
+
+static void _rtl_eri_write(struct rtl8169_private *tp, int addr, u32 mask,
+ u32 val, int type)
+{
+ u32 cmd = ERIAR_WRITE_CMD | type | mask | addr;
+
+ if (WARN(addr & 3 || !mask, "addr: 0x%x, mask: 0x%08x\n", addr, mask))
+ return;
+
+ RTL_W32(tp, ERIDR, val);
+ r8168fp_adjust_ocp_cmd(tp, &cmd, type);
+ RTL_W32(tp, ERIAR, cmd);
+
+ rtl_loop_wait_low(tp, &rtl_eriar_cond, 100, 100);
+}
+
+static void rtl_eri_write(struct rtl8169_private *tp, int addr, u32 mask,
+ u32 val)
+{
+ _rtl_eri_write(tp, addr, mask, val, ERIAR_EXGMAC);
+}
+
+static u32 _rtl_eri_read(struct rtl8169_private *tp, int addr, int type)
+{
+ u32 cmd = ERIAR_READ_CMD | type | ERIAR_MASK_1111 | addr;
+
+ r8168fp_adjust_ocp_cmd(tp, &cmd, type);
+ RTL_W32(tp, ERIAR, cmd);
+
+ return rtl_loop_wait_high(tp, &rtl_eriar_cond, 100, 100) ?
+ RTL_R32(tp, ERIDR) : ~0;
+}
+
+static u32 rtl_eri_read(struct rtl8169_private *tp, int addr)
+{
+ return _rtl_eri_read(tp, addr, ERIAR_EXGMAC);
+}
+
+static void rtl_w0w1_eri(struct rtl8169_private *tp, int addr, u32 p, u32 m)
+{
+ u32 val = rtl_eri_read(tp, addr);
+
+ rtl_eri_write(tp, addr, ERIAR_MASK_1111, (val & ~m) | p);
+}
+
+static void rtl_eri_set_bits(struct rtl8169_private *tp, int addr, u32 p)
+{
+ rtl_w0w1_eri(tp, addr, p, 0);
+}
+
+static void rtl_eri_clear_bits(struct rtl8169_private *tp, int addr, u32 m)
+{
+ rtl_w0w1_eri(tp, addr, 0, m);
+}
+
+static bool rtl_ocp_reg_failure(u32 reg)
+{
+ return WARN_ONCE(reg & 0xffff0001, "Invalid ocp reg %x!\n", reg);
+}
+
+DECLARE_RTL_COND(rtl_ocp_gphy_cond)
+{
+ return RTL_R32(tp, GPHY_OCP) & OCPAR_FLAG;
+}
+
+static void r8168_phy_ocp_write(struct rtl8169_private *tp, u32 reg, u32 data)
+{
+ if (rtl_ocp_reg_failure(reg))
+ return;
+
+ RTL_W32(tp, GPHY_OCP, OCPAR_FLAG | (reg << 15) | data);
+
+ rtl_loop_wait_low(tp, &rtl_ocp_gphy_cond, 25, 10);
+}
+
+static int r8168_phy_ocp_read(struct rtl8169_private *tp, u32 reg)
+{
+ if (rtl_ocp_reg_failure(reg))
+ return 0;
+
+ RTL_W32(tp, GPHY_OCP, reg << 15);
+
+ return rtl_loop_wait_high(tp, &rtl_ocp_gphy_cond, 25, 10) ?
+ (RTL_R32(tp, GPHY_OCP) & 0xffff) : -ETIMEDOUT;
+}
+
+static void r8168_mac_ocp_write(struct rtl8169_private *tp, u32 reg, u32 data)
+{
+ if (rtl_ocp_reg_failure(reg))
+ return;
+
+ RTL_W32(tp, OCPDR, OCPAR_FLAG | (reg << 15) | data);
+}
+
+static u16 r8168_mac_ocp_read(struct rtl8169_private *tp, u32 reg)
+{
+ if (rtl_ocp_reg_failure(reg))
+ return 0;
+
+ RTL_W32(tp, OCPDR, reg << 15);
+
+ return RTL_R32(tp, OCPDR);
+}
+
+static void r8168_mac_ocp_modify(struct rtl8169_private *tp, u32 reg, u16 mask,
+ u16 set)
+{
+ u16 data = r8168_mac_ocp_read(tp, reg);
+
+ r8168_mac_ocp_write(tp, reg, (data & ~mask) | set);
+}
+
+/* Work around a hw issue with RTL8168g PHY, the quirk disables
+ * PHY MCU interrupts before PHY power-down.
+ */
+static void rtl8168g_phy_suspend_quirk(struct rtl8169_private *tp, int value)
+{
+ switch (tp->mac_version) {
+ case RTL_GIGA_MAC_VER_40:
+ if (value & BMCR_RESET || !(value & BMCR_PDOWN))
+ rtl_eri_set_bits(tp, 0x1a8, 0xfc000000);
+ else
+ rtl_eri_clear_bits(tp, 0x1a8, 0xfc000000);
+ break;
+ default:
+ break;
+ }
+};
+
+static void r8168g_mdio_write(struct rtl8169_private *tp, int reg, int value)
+{
+ if (reg == 0x1f) {
+ tp->ocp_base = value ? value << 4 : OCP_STD_PHY_BASE;
+ return;
+ }
+
+ if (tp->ocp_base != OCP_STD_PHY_BASE)
+ reg -= 0x10;
+
+ if (tp->ocp_base == OCP_STD_PHY_BASE && reg == MII_BMCR)
+ rtl8168g_phy_suspend_quirk(tp, value);
+
+ r8168_phy_ocp_write(tp, tp->ocp_base + reg * 2, value);
+}
+
+static int r8168g_mdio_read(struct rtl8169_private *tp, int reg)
+{
+ if (reg == 0x1f)
+ return tp->ocp_base == OCP_STD_PHY_BASE ? 0 : tp->ocp_base >> 4;
+
+ if (tp->ocp_base != OCP_STD_PHY_BASE)
+ reg -= 0x10;
+
+ return r8168_phy_ocp_read(tp, tp->ocp_base + reg * 2);
+}
+
+static void mac_mcu_write(struct rtl8169_private *tp, int reg, int value)
+{
+ if (reg == 0x1f) {
+ tp->ocp_base = value << 4;
+ return;
+ }
+
+ r8168_mac_ocp_write(tp, tp->ocp_base + reg, value);
+}
+
+static int mac_mcu_read(struct rtl8169_private *tp, int reg)
+{
+ return r8168_mac_ocp_read(tp, tp->ocp_base + reg);
+}
+
+DECLARE_RTL_COND(rtl_phyar_cond)
+{
+ return RTL_R32(tp, PHYAR) & 0x80000000;
+}
+
+static void r8169_mdio_write(struct rtl8169_private *tp, int reg, int value)
+{
+ RTL_W32(tp, PHYAR, 0x80000000 | (reg & 0x1f) << 16 | (value & 0xffff));
+
+ rtl_loop_wait_low(tp, &rtl_phyar_cond, 25, 20);
+ /*
+ * According to hardware specs a 20us delay is required after write
+ * complete indication, but before sending next command.
+ */
+ udelay(20);
+}
+
+static int r8169_mdio_read(struct rtl8169_private *tp, int reg)
+{
+ int value;
+
+ RTL_W32(tp, PHYAR, 0x0 | (reg & 0x1f) << 16);
+
+ value = rtl_loop_wait_high(tp, &rtl_phyar_cond, 25, 20) ?
+ RTL_R32(tp, PHYAR) & 0xffff : -ETIMEDOUT;
+
+ /*
+ * According to hardware specs a 20us delay is required after read
+ * complete indication, but before sending next command.
+ */
+ udelay(20);
+
+ return value;
+}
+
+DECLARE_RTL_COND(rtl_ocpar_cond)
+{
+ return RTL_R32(tp, OCPAR) & OCPAR_FLAG;
+}
+
+#define R8168DP_1_MDIO_ACCESS_BIT 0x00020000
+
+static void r8168dp_2_mdio_start(struct rtl8169_private *tp)
+{
+ RTL_W32(tp, 0xd0, RTL_R32(tp, 0xd0) & ~R8168DP_1_MDIO_ACCESS_BIT);
+}
+
+static void r8168dp_2_mdio_stop(struct rtl8169_private *tp)
+{
+ RTL_W32(tp, 0xd0, RTL_R32(tp, 0xd0) | R8168DP_1_MDIO_ACCESS_BIT);
+}
+
+static void r8168dp_2_mdio_write(struct rtl8169_private *tp, int reg, int value)
+{
+ r8168dp_2_mdio_start(tp);
+
+ r8169_mdio_write(tp, reg, value);
+
+ r8168dp_2_mdio_stop(tp);
+}
+
+static int r8168dp_2_mdio_read(struct rtl8169_private *tp, int reg)
+{
+ int value;
+
+ /* Work around issue with chip reporting wrong PHY ID */
+ if (reg == MII_PHYSID2)
+ return 0xc912;
+
+ r8168dp_2_mdio_start(tp);
+
+ value = r8169_mdio_read(tp, reg);
+
+ r8168dp_2_mdio_stop(tp);
+
+ return value;
+}
+
+static void rtl_writephy(struct rtl8169_private *tp, int location, int val)
+{
+ switch (tp->mac_version) {
+ case RTL_GIGA_MAC_VER_28:
+ case RTL_GIGA_MAC_VER_31:
+ r8168dp_2_mdio_write(tp, location, val);
+ break;
+ case RTL_GIGA_MAC_VER_40 ... RTL_GIGA_MAC_VER_63:
+ r8168g_mdio_write(tp, location, val);
+ break;
+ default:
+ r8169_mdio_write(tp, location, val);
+ break;
+ }
+}
+
+static int rtl_readphy(struct rtl8169_private *tp, int location)
+{
+ switch (tp->mac_version) {
+ case RTL_GIGA_MAC_VER_28:
+ case RTL_GIGA_MAC_VER_31:
+ return r8168dp_2_mdio_read(tp, location);
+ case RTL_GIGA_MAC_VER_40 ... RTL_GIGA_MAC_VER_63:
+ return r8168g_mdio_read(tp, location);
+ default:
+ return r8169_mdio_read(tp, location);
+ }
+}
+
+DECLARE_RTL_COND(rtl_ephyar_cond)
+{
+ return RTL_R32(tp, EPHYAR) & EPHYAR_FLAG;
+}
+
+static void rtl_ephy_write(struct rtl8169_private *tp, int reg_addr, int value)
+{
+ RTL_W32(tp, EPHYAR, EPHYAR_WRITE_CMD | (value & EPHYAR_DATA_MASK) |
+ (reg_addr & EPHYAR_REG_MASK) << EPHYAR_REG_SHIFT);
+
+ rtl_loop_wait_low(tp, &rtl_ephyar_cond, 10, 100);
+
+ udelay(10);
+}
+
+static u16 rtl_ephy_read(struct rtl8169_private *tp, int reg_addr)
+{
+ RTL_W32(tp, EPHYAR, (reg_addr & EPHYAR_REG_MASK) << EPHYAR_REG_SHIFT);
+
+ return rtl_loop_wait_high(tp, &rtl_ephyar_cond, 10, 100) ?
+ RTL_R32(tp, EPHYAR) & EPHYAR_DATA_MASK : ~0;
+}
+
+static u32 r8168dp_ocp_read(struct rtl8169_private *tp, u16 reg)
+{
+ RTL_W32(tp, OCPAR, 0x0fu << 12 | (reg & 0x0fff));
+ return rtl_loop_wait_high(tp, &rtl_ocpar_cond, 100, 20) ?
+ RTL_R32(tp, OCPDR) : ~0;
+}
+
+static u32 r8168ep_ocp_read(struct rtl8169_private *tp, u16 reg)
+{
+ return _rtl_eri_read(tp, reg, ERIAR_OOB);
+}
+
+static void r8168dp_ocp_write(struct rtl8169_private *tp, u8 mask, u16 reg,
+ u32 data)
+{
+ RTL_W32(tp, OCPDR, data);
+ RTL_W32(tp, OCPAR, OCPAR_FLAG | ((u32)mask & 0x0f) << 12 | (reg & 0x0fff));
+ rtl_loop_wait_low(tp, &rtl_ocpar_cond, 100, 20);
+}
+
+static void r8168ep_ocp_write(struct rtl8169_private *tp, u8 mask, u16 reg,
+ u32 data)
+{
+ _rtl_eri_write(tp, reg, ((u32)mask & 0x0f) << ERIAR_MASK_SHIFT,
+ data, ERIAR_OOB);
+}
+
+static void r8168dp_oob_notify(struct rtl8169_private *tp, u8 cmd)
+{
+ rtl_eri_write(tp, 0xe8, ERIAR_MASK_0001, cmd);
+
+ r8168dp_ocp_write(tp, 0x1, 0x30, 0x00000001);
+}
+
+#define OOB_CMD_RESET 0x00
+#define OOB_CMD_DRIVER_START 0x05
+#define OOB_CMD_DRIVER_STOP 0x06
+
+static u16 rtl8168_get_ocp_reg(struct rtl8169_private *tp)
+{
+ return (tp->mac_version == RTL_GIGA_MAC_VER_31) ? 0xb8 : 0x10;
+}
+
+DECLARE_RTL_COND(rtl_dp_ocp_read_cond)
+{
+ u16 reg;
+
+ reg = rtl8168_get_ocp_reg(tp);
+
+ return r8168dp_ocp_read(tp, reg) & 0x00000800;
+}
+
+DECLARE_RTL_COND(rtl_ep_ocp_read_cond)
+{
+ return r8168ep_ocp_read(tp, 0x124) & 0x00000001;
+}
+
+DECLARE_RTL_COND(rtl_ocp_tx_cond)
+{
+ return RTL_R8(tp, IBISR0) & 0x20;
+}
+
+static void rtl8168ep_stop_cmac(struct rtl8169_private *tp)
+{
+ RTL_W8(tp, IBCR2, RTL_R8(tp, IBCR2) & ~0x01);
+ rtl_loop_wait_high(tp, &rtl_ocp_tx_cond, 50000, 2000);
+ RTL_W8(tp, IBISR0, RTL_R8(tp, IBISR0) | 0x20);
+ RTL_W8(tp, IBCR0, RTL_R8(tp, IBCR0) & ~0x01);
+}
+
+static void rtl8168dp_driver_start(struct rtl8169_private *tp)
+{
+ r8168dp_oob_notify(tp, OOB_CMD_DRIVER_START);
+ rtl_loop_wait_high(tp, &rtl_dp_ocp_read_cond, 10000, 10);
+}
+
+static void rtl8168ep_driver_start(struct rtl8169_private *tp)
+{
+ r8168ep_ocp_write(tp, 0x01, 0x180, OOB_CMD_DRIVER_START);
+ r8168ep_ocp_write(tp, 0x01, 0x30, r8168ep_ocp_read(tp, 0x30) | 0x01);
+ rtl_loop_wait_high(tp, &rtl_ep_ocp_read_cond, 10000, 30);
+}
+
+static void rtl8168_driver_start(struct rtl8169_private *tp)
+{
+ if (tp->dash_type == RTL_DASH_DP)
+ rtl8168dp_driver_start(tp);
+ else
+ rtl8168ep_driver_start(tp);
+}
+
+static void rtl8168dp_driver_stop(struct rtl8169_private *tp)
+{
+ r8168dp_oob_notify(tp, OOB_CMD_DRIVER_STOP);
+ rtl_loop_wait_low(tp, &rtl_dp_ocp_read_cond, 10000, 10);
+}
+
+static void rtl8168ep_driver_stop(struct rtl8169_private *tp)
+{
+ rtl8168ep_stop_cmac(tp);
+ r8168ep_ocp_write(tp, 0x01, 0x180, OOB_CMD_DRIVER_STOP);
+ r8168ep_ocp_write(tp, 0x01, 0x30, r8168ep_ocp_read(tp, 0x30) | 0x01);
+ rtl_loop_wait_low(tp, &rtl_ep_ocp_read_cond, 10000, 10);
+}
+
+static void rtl8168_driver_stop(struct rtl8169_private *tp)
+{
+ if (tp->dash_type == RTL_DASH_DP)
+ rtl8168dp_driver_stop(tp);
+ else
+ rtl8168ep_driver_stop(tp);
+}
+
+static bool r8168dp_check_dash(struct rtl8169_private *tp)
+{
+ u16 reg = rtl8168_get_ocp_reg(tp);
+
+ return r8168dp_ocp_read(tp, reg) & BIT(15);
+}
+
+static bool r8168ep_check_dash(struct rtl8169_private *tp)
+{
+ return r8168ep_ocp_read(tp, 0x128) & BIT(0);
+}
+
+static bool rtl_dash_is_enabled(struct rtl8169_private *tp)
+{
+ switch (tp->dash_type) {
+ case RTL_DASH_DP:
+ return r8168dp_check_dash(tp);
+ case RTL_DASH_EP:
+ return r8168ep_check_dash(tp);
+ default:
+ return false;
+ }
+}
+
+static enum rtl_dash_type rtl_get_dash_type(struct rtl8169_private *tp)
+{
+ switch (tp->mac_version) {
+ case RTL_GIGA_MAC_VER_28:
+ case RTL_GIGA_MAC_VER_31:
+ return RTL_DASH_DP;
+ case RTL_GIGA_MAC_VER_51 ... RTL_GIGA_MAC_VER_53:
+ return RTL_DASH_EP;
+ default:
+ return RTL_DASH_NONE;
+ }
+}
+
+static void rtl_set_d3_pll_down(struct rtl8169_private *tp, bool enable)
+{
+ switch (tp->mac_version) {
+ case RTL_GIGA_MAC_VER_25 ... RTL_GIGA_MAC_VER_26:
+ case RTL_GIGA_MAC_VER_29 ... RTL_GIGA_MAC_VER_30:
+ case RTL_GIGA_MAC_VER_32 ... RTL_GIGA_MAC_VER_37:
+ case RTL_GIGA_MAC_VER_39 ... RTL_GIGA_MAC_VER_63:
+ if (enable)
+ RTL_W8(tp, PMCH, RTL_R8(tp, PMCH) & ~D3_NO_PLL_DOWN);
+ else
+ RTL_W8(tp, PMCH, RTL_R8(tp, PMCH) | D3_NO_PLL_DOWN);
+ break;
+ default:
+ break;
+ }
+}
+
+static void rtl_reset_packet_filter(struct rtl8169_private *tp)
+{
+ rtl_eri_clear_bits(tp, 0xdc, BIT(0));
+ rtl_eri_set_bits(tp, 0xdc, BIT(0));
+}
+
+DECLARE_RTL_COND(rtl_efusear_cond)
+{
+ return RTL_R32(tp, EFUSEAR) & EFUSEAR_FLAG;
+}
+
+u8 rtl8168d_efuse_read(struct rtl8169_private *tp, int reg_addr)
+{
+ RTL_W32(tp, EFUSEAR, (reg_addr & EFUSEAR_REG_MASK) << EFUSEAR_REG_SHIFT);
+
+ return rtl_loop_wait_high(tp, &rtl_efusear_cond, 100, 300) ?
+ RTL_R32(tp, EFUSEAR) & EFUSEAR_DATA_MASK : ~0;
+}
+
+static u32 rtl_get_events(struct rtl8169_private *tp)
+{
+ if (rtl_is_8125(tp))
+ return RTL_R32(tp, IntrStatus_8125);
+ else
+ return RTL_R16(tp, IntrStatus);
+}
+
+static void rtl_ack_events(struct rtl8169_private *tp, u32 bits)
+{
+ if (rtl_is_8125(tp))
+ RTL_W32(tp, IntrStatus_8125, bits);
+ else
+ RTL_W16(tp, IntrStatus, bits);
+}
+
+static void rtl_irq_disable(struct rtl8169_private *tp)
+{
+ if (rtl_is_8125(tp))
+ RTL_W32(tp, IntrMask_8125, 0);
+ else
+ RTL_W16(tp, IntrMask, 0);
+}
+
+static void rtl_irq_enable(struct rtl8169_private *tp)
+{
+ if (rtl_is_8125(tp))
+ RTL_W32(tp, IntrMask_8125, tp->irq_mask);
+ else
+ RTL_W16(tp, IntrMask, tp->irq_mask);
+}
+
+static void rtl8169_irq_mask_and_ack(struct rtl8169_private *tp)
+{
+ rtl_irq_disable(tp);
+ rtl_ack_events(tp, 0xffffffff);
+ rtl_pci_commit(tp);
+}
+
+static void rtl_link_chg_patch(struct rtl8169_private *tp)
+{
+ struct phy_device *phydev = tp->phydev;
+
+ if (tp->mac_version == RTL_GIGA_MAC_VER_34 ||
+ tp->mac_version == RTL_GIGA_MAC_VER_38) {
+ if (phydev->speed == SPEED_1000) {
+ rtl_eri_write(tp, 0x1bc, ERIAR_MASK_1111, 0x00000011);
+ rtl_eri_write(tp, 0x1dc, ERIAR_MASK_1111, 0x00000005);
+ } else if (phydev->speed == SPEED_100) {
+ rtl_eri_write(tp, 0x1bc, ERIAR_MASK_1111, 0x0000001f);
+ rtl_eri_write(tp, 0x1dc, ERIAR_MASK_1111, 0x00000005);
+ } else {
+ rtl_eri_write(tp, 0x1bc, ERIAR_MASK_1111, 0x0000001f);
+ rtl_eri_write(tp, 0x1dc, ERIAR_MASK_1111, 0x0000003f);
+ }
+ rtl_reset_packet_filter(tp);
+ } else if (tp->mac_version == RTL_GIGA_MAC_VER_35 ||
+ tp->mac_version == RTL_GIGA_MAC_VER_36) {
+ if (phydev->speed == SPEED_1000) {
+ rtl_eri_write(tp, 0x1bc, ERIAR_MASK_1111, 0x00000011);
+ rtl_eri_write(tp, 0x1dc, ERIAR_MASK_1111, 0x00000005);
+ } else {
+ rtl_eri_write(tp, 0x1bc, ERIAR_MASK_1111, 0x0000001f);
+ rtl_eri_write(tp, 0x1dc, ERIAR_MASK_1111, 0x0000003f);
+ }
+ } else if (tp->mac_version == RTL_GIGA_MAC_VER_37) {
+ if (phydev->speed == SPEED_10) {
+ rtl_eri_write(tp, 0x1d0, ERIAR_MASK_0011, 0x4d02);
+ rtl_eri_write(tp, 0x1dc, ERIAR_MASK_0011, 0x0060a);
+ } else {
+ rtl_eri_write(tp, 0x1d0, ERIAR_MASK_0011, 0x0000);
+ }
+ }
+}
+
+#define WAKE_ANY (WAKE_PHY | WAKE_MAGIC | WAKE_UCAST | WAKE_BCAST | WAKE_MCAST)
+
+static void rtl8169_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
+{
+ struct rtl8169_private *tp = netdev_priv(dev);
+
+ wol->supported = WAKE_ANY;
+ wol->wolopts = tp->saved_wolopts;
+}
+
+static void __rtl8169_set_wol(struct rtl8169_private *tp, u32 wolopts)
+{
+ static const struct {
+ u32 opt;
+ u16 reg;
+ u8 mask;
+ } cfg[] = {
+ { WAKE_PHY, Config3, LinkUp },
+ { WAKE_UCAST, Config5, UWF },
+ { WAKE_BCAST, Config5, BWF },
+ { WAKE_MCAST, Config5, MWF },
+ { WAKE_ANY, Config5, LanWake },
+ { WAKE_MAGIC, Config3, MagicPacket }
+ };
+ unsigned int i, tmp = ARRAY_SIZE(cfg);
+ u8 options;
+
+ rtl_unlock_config_regs(tp);
+
+ if (rtl_is_8168evl_up(tp)) {
+ tmp--;
+ if (wolopts & WAKE_MAGIC)
+ rtl_eri_set_bits(tp, 0x0dc, MagicPacket_v2);
+ else
+ rtl_eri_clear_bits(tp, 0x0dc, MagicPacket_v2);
+ } else if (rtl_is_8125(tp)) {
+ tmp--;
+ if (wolopts & WAKE_MAGIC)
+ r8168_mac_ocp_modify(tp, 0xc0b6, 0, BIT(0));
+ else
+ r8168_mac_ocp_modify(tp, 0xc0b6, BIT(0), 0);
+ }
+
+ for (i = 0; i < tmp; i++) {
+ options = RTL_R8(tp, cfg[i].reg) & ~cfg[i].mask;
+ if (wolopts & cfg[i].opt)
+ options |= cfg[i].mask;
+ RTL_W8(tp, cfg[i].reg, options);
+ }
+
+ switch (tp->mac_version) {
+ case RTL_GIGA_MAC_VER_02 ... RTL_GIGA_MAC_VER_06:
+ options = RTL_R8(tp, Config1) & ~PMEnable;
+ if (wolopts)
+ options |= PMEnable;
+ RTL_W8(tp, Config1, options);
+ break;
+ case RTL_GIGA_MAC_VER_34:
+ case RTL_GIGA_MAC_VER_37:
+ case RTL_GIGA_MAC_VER_39 ... RTL_GIGA_MAC_VER_63:
+ options = RTL_R8(tp, Config2) & ~PME_SIGNAL;
+ if (wolopts)
+ options |= PME_SIGNAL;
+ RTL_W8(tp, Config2, options);
+ break;
+ default:
+ break;
+ }
+
+ rtl_lock_config_regs(tp);
+
+ device_set_wakeup_enable(tp_to_dev(tp), wolopts);
+
+ if (!tp->dash_enabled) {
+ rtl_set_d3_pll_down(tp, !wolopts);
+ tp->dev->wol_enabled = wolopts ? 1 : 0;
+ }
+}
+
+static int rtl8169_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
+{
+ struct rtl8169_private *tp = netdev_priv(dev);
+
+ if (wol->wolopts & ~WAKE_ANY)
+ return -EINVAL;
+
+ tp->saved_wolopts = wol->wolopts;
+ __rtl8169_set_wol(tp, tp->saved_wolopts);
+
+ return 0;
+}
+
+static void rtl8169_get_drvinfo(struct net_device *dev,
+ struct ethtool_drvinfo *info)
+{
+ struct rtl8169_private *tp = netdev_priv(dev);
+ struct rtl_fw *rtl_fw = tp->rtl_fw;
+
+ strscpy(info->driver, KBUILD_MODNAME, sizeof(info->driver));
+ strscpy(info->bus_info, pci_name(tp->pci_dev), sizeof(info->bus_info));
+ BUILD_BUG_ON(sizeof(info->fw_version) < sizeof(rtl_fw->version));
+ if (rtl_fw)
+ strscpy(info->fw_version, rtl_fw->version,
+ sizeof(info->fw_version));
+}
+
+static int rtl8169_get_regs_len(struct net_device *dev)
+{
+ return R8169_REGS_SIZE;
+}
+
+static netdev_features_t rtl8169_fix_features(struct net_device *dev,
+ netdev_features_t features)
+{
+ struct rtl8169_private *tp = netdev_priv(dev);
+
+ if (dev->mtu > TD_MSS_MAX)
+ features &= ~NETIF_F_ALL_TSO;
+
+ if (dev->mtu > ETH_DATA_LEN &&
+ tp->mac_version > RTL_GIGA_MAC_VER_06)
+ features &= ~(NETIF_F_CSUM_MASK | NETIF_F_ALL_TSO);
+
+ return features;
+}
+
+static void rtl_set_rx_config_features(struct rtl8169_private *tp,
+ netdev_features_t features)
+{
+ u32 rx_config = RTL_R32(tp, RxConfig);
+
+ if (features & NETIF_F_RXALL)
+ rx_config |= RX_CONFIG_ACCEPT_ERR_MASK;
+ else
+ rx_config &= ~RX_CONFIG_ACCEPT_ERR_MASK;
+
+ if (rtl_is_8125(tp)) {
+ if (features & NETIF_F_HW_VLAN_CTAG_RX)
+ rx_config |= RX_VLAN_8125;
+ else
+ rx_config &= ~RX_VLAN_8125;
+ }
+
+ RTL_W32(tp, RxConfig, rx_config);
+}
+
+static int rtl8169_set_features(struct net_device *dev,
+ netdev_features_t features)
+{
+ struct rtl8169_private *tp = netdev_priv(dev);
+
+ rtl_set_rx_config_features(tp, features);
+
+ if (features & NETIF_F_RXCSUM)
+ tp->cp_cmd |= RxChkSum;
+ else
+ tp->cp_cmd &= ~RxChkSum;
+
+ if (!rtl_is_8125(tp)) {
+ if (features & NETIF_F_HW_VLAN_CTAG_RX)
+ tp->cp_cmd |= RxVlan;
+ else
+ tp->cp_cmd &= ~RxVlan;
+ }
+
+ RTL_W16(tp, CPlusCmd, tp->cp_cmd);
+ rtl_pci_commit(tp);
+
+ return 0;
+}
+
+static inline u32 rtl8169_tx_vlan_tag(struct sk_buff *skb)
+{
+ return (skb_vlan_tag_present(skb)) ?
+ TxVlanTag | swab16(skb_vlan_tag_get(skb)) : 0x00;
+}
+
+static void rtl8169_rx_vlan_tag(struct RxDesc *desc, struct sk_buff *skb)
+{
+ u32 opts2 = le32_to_cpu(desc->opts2);
+
+ if (opts2 & RxVlanTag)
+ __vlan_hwaccel_put_tag(skb, htons(ETH_P_8021Q), swab16(opts2 & 0xffff));
+}
+
+static void rtl8169_get_regs(struct net_device *dev, struct ethtool_regs *regs,
+ void *p)
+{
+ struct rtl8169_private *tp = netdev_priv(dev);
+ u32 __iomem *data = tp->mmio_addr;
+ u32 *dw = p;
+ int i;
+
+ for (i = 0; i < R8169_REGS_SIZE; i += 4)
+ memcpy_fromio(dw++, data++, 4);
+}
+
+static const char rtl8169_gstrings[][ETH_GSTRING_LEN] = {
+ "tx_packets",
+ "rx_packets",
+ "tx_errors",
+ "rx_errors",
+ "rx_missed",
+ "align_errors",
+ "tx_single_collisions",
+ "tx_multi_collisions",
+ "unicast",
+ "broadcast",
+ "multicast",
+ "tx_aborted",
+ "tx_underrun",
+};
+
+static int rtl8169_get_sset_count(struct net_device *dev, int sset)
+{
+ switch (sset) {
+ case ETH_SS_STATS:
+ return ARRAY_SIZE(rtl8169_gstrings);
+ default:
+ return -EOPNOTSUPP;
+ }
+}
+
+DECLARE_RTL_COND(rtl_counters_cond)
+{
+ return RTL_R32(tp, CounterAddrLow) & (CounterReset | CounterDump);
+}
+
+static void rtl8169_do_counters(struct rtl8169_private *tp, u32 counter_cmd)
+{
+ u32 cmd = lower_32_bits(tp->counters_phys_addr);
+
+ RTL_W32(tp, CounterAddrHigh, upper_32_bits(tp->counters_phys_addr));
+ rtl_pci_commit(tp);
+ RTL_W32(tp, CounterAddrLow, cmd);
+ RTL_W32(tp, CounterAddrLow, cmd | counter_cmd);
+
+ rtl_loop_wait_low(tp, &rtl_counters_cond, 10, 1000);
+}
+
+static void rtl8169_update_counters(struct rtl8169_private *tp)
+{
+ u8 val = RTL_R8(tp, ChipCmd);
+
+ /*
+ * Some chips are unable to dump tally counters when the receiver
+ * is disabled. If 0xff chip may be in a PCI power-save state.
+ */
+ if (val & CmdRxEnb && val != 0xff)
+ rtl8169_do_counters(tp, CounterDump);
+}
+
+static void rtl8169_init_counter_offsets(struct rtl8169_private *tp)
+{
+ struct rtl8169_counters *counters = tp->counters;
+
+ /*
+ * rtl8169_init_counter_offsets is called from rtl_open. On chip
+ * versions prior to RTL_GIGA_MAC_VER_19 the tally counters are only
+ * reset by a power cycle, while the counter values collected by the
+ * driver are reset at every driver unload/load cycle.
+ *
+ * To make sure the HW values returned by @get_stats64 match the SW
+ * values, we collect the initial values at first open(*) and use them
+ * as offsets to normalize the values returned by @get_stats64.
+ *
+ * (*) We can't call rtl8169_init_counter_offsets from rtl_init_one
+ * for the reason stated in rtl8169_update_counters; CmdRxEnb is only
+ * set at open time by rtl_hw_start.
+ */
+
+ if (tp->tc_offset.inited)
+ return;
+
+ if (tp->mac_version >= RTL_GIGA_MAC_VER_19) {
+ rtl8169_do_counters(tp, CounterReset);
+ } else {
+ rtl8169_update_counters(tp);
+ tp->tc_offset.tx_errors = counters->tx_errors;
+ tp->tc_offset.tx_multi_collision = counters->tx_multi_collision;
+ tp->tc_offset.tx_aborted = counters->tx_aborted;
+ tp->tc_offset.rx_missed = counters->rx_missed;
+ }
+
+ tp->tc_offset.inited = true;
+}
+
+static void rtl8169_get_ethtool_stats(struct net_device *dev,
+ struct ethtool_stats *stats, u64 *data)
+{
+ struct rtl8169_private *tp = netdev_priv(dev);
+ struct rtl8169_counters *counters;
+
+ counters = tp->counters;
+ rtl8169_update_counters(tp);
+
+ data[0] = le64_to_cpu(counters->tx_packets);
+ data[1] = le64_to_cpu(counters->rx_packets);
+ data[2] = le64_to_cpu(counters->tx_errors);
+ data[3] = le32_to_cpu(counters->rx_errors);
+ data[4] = le16_to_cpu(counters->rx_missed);
+ data[5] = le16_to_cpu(counters->align_errors);
+ data[6] = le32_to_cpu(counters->tx_one_collision);
+ data[7] = le32_to_cpu(counters->tx_multi_collision);
+ data[8] = le64_to_cpu(counters->rx_unicast);
+ data[9] = le64_to_cpu(counters->rx_broadcast);
+ data[10] = le32_to_cpu(counters->rx_multicast);
+ data[11] = le16_to_cpu(counters->tx_aborted);
+ data[12] = le16_to_cpu(counters->tx_underun);
+}
+
+static void rtl8169_get_strings(struct net_device *dev, u32 stringset, u8 *data)
+{
+ switch(stringset) {
+ case ETH_SS_STATS:
+ memcpy(data, rtl8169_gstrings, sizeof(rtl8169_gstrings));
+ break;
+ }
+}
+
+/*
+ * Interrupt coalescing
+ *
+ * > 1 - the availability of the IntrMitigate (0xe2) register through the
+ * > 8169, 8168 and 810x line of chipsets
+ *
+ * 8169, 8168, and 8136(810x) serial chipsets support it.
+ *
+ * > 2 - the Tx timer unit at gigabit speed
+ *
+ * The unit of the timer depends on both the speed and the setting of CPlusCmd
+ * (0xe0) bit 1 and bit 0.
+ *
+ * For 8169
+ * bit[1:0] \ speed 1000M 100M 10M
+ * 0 0 320ns 2.56us 40.96us
+ * 0 1 2.56us 20.48us 327.7us
+ * 1 0 5.12us 40.96us 655.4us
+ * 1 1 10.24us 81.92us 1.31ms
+ *
+ * For the other
+ * bit[1:0] \ speed 1000M 100M 10M
+ * 0 0 5us 2.56us 40.96us
+ * 0 1 40us 20.48us 327.7us
+ * 1 0 80us 40.96us 655.4us
+ * 1 1 160us 81.92us 1.31ms
+ */
+
+/* rx/tx scale factors for all CPlusCmd[0:1] cases */
+struct rtl_coalesce_info {
+ u32 speed;
+ u32 scale_nsecs[4];
+};
+
+/* produce array with base delay *1, *8, *8*2, *8*2*2 */
+#define COALESCE_DELAY(d) { (d), 8 * (d), 16 * (d), 32 * (d) }
+
+static const struct rtl_coalesce_info rtl_coalesce_info_8169[] = {
+ { SPEED_1000, COALESCE_DELAY(320) },
+ { SPEED_100, COALESCE_DELAY(2560) },
+ { SPEED_10, COALESCE_DELAY(40960) },
+ { 0 },
+};
+
+static const struct rtl_coalesce_info rtl_coalesce_info_8168_8136[] = {
+ { SPEED_1000, COALESCE_DELAY(5000) },
+ { SPEED_100, COALESCE_DELAY(2560) },
+ { SPEED_10, COALESCE_DELAY(40960) },
+ { 0 },
+};
+#undef COALESCE_DELAY
+
+/* get rx/tx scale vector corresponding to current speed */
+static const struct rtl_coalesce_info *
+rtl_coalesce_info(struct rtl8169_private *tp)
+{
+ const struct rtl_coalesce_info *ci;
+
+ if (tp->mac_version <= RTL_GIGA_MAC_VER_06)
+ ci = rtl_coalesce_info_8169;
+ else
+ ci = rtl_coalesce_info_8168_8136;
+
+ /* if speed is unknown assume highest one */
+ if (tp->phydev->speed == SPEED_UNKNOWN)
+ return ci;
+
+ for (; ci->speed; ci++) {
+ if (tp->phydev->speed == ci->speed)
+ return ci;
+ }
+
+ return ERR_PTR(-ELNRNG);
+}
+
+static int rtl_get_coalesce(struct net_device *dev,
+ struct ethtool_coalesce *ec,
+ struct kernel_ethtool_coalesce *kernel_coal,
+ struct netlink_ext_ack *extack)
+{
+ struct rtl8169_private *tp = netdev_priv(dev);
+ const struct rtl_coalesce_info *ci;
+ u32 scale, c_us, c_fr;
+ u16 intrmit;
+
+ if (rtl_is_8125(tp))
+ return -EOPNOTSUPP;
+
+ memset(ec, 0, sizeof(*ec));
+
+ /* get rx/tx scale corresponding to current speed and CPlusCmd[0:1] */
+ ci = rtl_coalesce_info(tp);
+ if (IS_ERR(ci))
+ return PTR_ERR(ci);
+
+ scale = ci->scale_nsecs[tp->cp_cmd & INTT_MASK];
+
+ intrmit = RTL_R16(tp, IntrMitigate);
+
+ c_us = FIELD_GET(RTL_COALESCE_TX_USECS, intrmit);
+ ec->tx_coalesce_usecs = DIV_ROUND_UP(c_us * scale, 1000);
+
+ c_fr = FIELD_GET(RTL_COALESCE_TX_FRAMES, intrmit);
+ /* ethtool_coalesce states usecs and max_frames must not both be 0 */
+ ec->tx_max_coalesced_frames = (c_us || c_fr) ? c_fr * 4 : 1;
+
+ c_us = FIELD_GET(RTL_COALESCE_RX_USECS, intrmit);
+ ec->rx_coalesce_usecs = DIV_ROUND_UP(c_us * scale, 1000);
+
+ c_fr = FIELD_GET(RTL_COALESCE_RX_FRAMES, intrmit);
+ ec->rx_max_coalesced_frames = (c_us || c_fr) ? c_fr * 4 : 1;
+
+ return 0;
+}
+
+/* choose appropriate scale factor and CPlusCmd[0:1] for (speed, usec) */
+static int rtl_coalesce_choose_scale(struct rtl8169_private *tp, u32 usec,
+ u16 *cp01)
+{
+ const struct rtl_coalesce_info *ci;
+ u16 i;
+
+ ci = rtl_coalesce_info(tp);
+ if (IS_ERR(ci))
+ return PTR_ERR(ci);
+
+ for (i = 0; i < 4; i++) {
+ if (usec <= ci->scale_nsecs[i] * RTL_COALESCE_T_MAX / 1000U) {
+ *cp01 = i;
+ return ci->scale_nsecs[i];
+ }
+ }
+
+ return -ERANGE;
+}
+
+static int rtl_set_coalesce(struct net_device *dev,
+ struct ethtool_coalesce *ec,
+ struct kernel_ethtool_coalesce *kernel_coal,
+ struct netlink_ext_ack *extack)
+{
+ struct rtl8169_private *tp = netdev_priv(dev);
+ u32 tx_fr = ec->tx_max_coalesced_frames;
+ u32 rx_fr = ec->rx_max_coalesced_frames;
+ u32 coal_usec_max, units;
+ u16 w = 0, cp01 = 0;
+ int scale;
+
+ if (rtl_is_8125(tp))
+ return -EOPNOTSUPP;
+
+ if (rx_fr > RTL_COALESCE_FRAME_MAX || tx_fr > RTL_COALESCE_FRAME_MAX)
+ return -ERANGE;
+
+ coal_usec_max = max(ec->rx_coalesce_usecs, ec->tx_coalesce_usecs);
+ scale = rtl_coalesce_choose_scale(tp, coal_usec_max, &cp01);
+ if (scale < 0)
+ return scale;
+
+ /* Accept max_frames=1 we returned in rtl_get_coalesce. Accept it
+ * not only when usecs=0 because of e.g. the following scenario:
+ *
+ * - both rx_usecs=0 & rx_frames=0 in hardware (no delay on RX)
+ * - rtl_get_coalesce returns rx_usecs=0, rx_frames=1
+ * - then user does `ethtool -C eth0 rx-usecs 100`
+ *
+ * Since ethtool sends to kernel whole ethtool_coalesce settings,
+ * if we want to ignore rx_frames then it has to be set to 0.
+ */
+ if (rx_fr == 1)
+ rx_fr = 0;
+ if (tx_fr == 1)
+ tx_fr = 0;
+
+ /* HW requires time limit to be set if frame limit is set */
+ if ((tx_fr && !ec->tx_coalesce_usecs) ||
+ (rx_fr && !ec->rx_coalesce_usecs))
+ return -EINVAL;
+
+ w |= FIELD_PREP(RTL_COALESCE_TX_FRAMES, DIV_ROUND_UP(tx_fr, 4));
+ w |= FIELD_PREP(RTL_COALESCE_RX_FRAMES, DIV_ROUND_UP(rx_fr, 4));
+
+ units = DIV_ROUND_UP(ec->tx_coalesce_usecs * 1000U, scale);
+ w |= FIELD_PREP(RTL_COALESCE_TX_USECS, units);
+ units = DIV_ROUND_UP(ec->rx_coalesce_usecs * 1000U, scale);
+ w |= FIELD_PREP(RTL_COALESCE_RX_USECS, units);
+
+ RTL_W16(tp, IntrMitigate, w);
+
+ /* Meaning of PktCntrDisable bit changed from RTL8168e-vl */
+ if (rtl_is_8168evl_up(tp)) {
+ if (!rx_fr && !tx_fr)
+ /* disable packet counter */
+ tp->cp_cmd |= PktCntrDisable;
+ else
+ tp->cp_cmd &= ~PktCntrDisable;
+ }
+
+ tp->cp_cmd = (tp->cp_cmd & ~INTT_MASK) | cp01;
+ RTL_W16(tp, CPlusCmd, tp->cp_cmd);
+ rtl_pci_commit(tp);
+
+ return 0;
+}
+
+static int rtl8169_get_eee(struct net_device *dev, struct ethtool_eee *data)
+{
+ struct rtl8169_private *tp = netdev_priv(dev);
+
+ if (!rtl_supports_eee(tp))
+ return -EOPNOTSUPP;
+
+ return phy_ethtool_get_eee(tp->phydev, data);
+}
+
+static int rtl8169_set_eee(struct net_device *dev, struct ethtool_eee *data)
+{
+ struct rtl8169_private *tp = netdev_priv(dev);
+ int ret;
+
+ if (!rtl_supports_eee(tp))
+ return -EOPNOTSUPP;
+
+ ret = phy_ethtool_set_eee(tp->phydev, data);
+
+ if (!ret)
+ tp->eee_adv = phy_read_mmd(dev->phydev, MDIO_MMD_AN,
+ MDIO_AN_EEE_ADV);
+ return ret;
+}
+
+static void rtl8169_get_ringparam(struct net_device *dev,
+ struct ethtool_ringparam *data,
+ struct kernel_ethtool_ringparam *kernel_data,
+ struct netlink_ext_ack *extack)
+{
+ data->rx_max_pending = NUM_RX_DESC;
+ data->rx_pending = NUM_RX_DESC;
+ data->tx_max_pending = NUM_TX_DESC;
+ data->tx_pending = NUM_TX_DESC;
+}
+
+static void rtl8169_get_pauseparam(struct net_device *dev,
+ struct ethtool_pauseparam *data)
+{
+ struct rtl8169_private *tp = netdev_priv(dev);
+ bool tx_pause, rx_pause;
+
+ phy_get_pause(tp->phydev, &tx_pause, &rx_pause);
+
+ data->autoneg = tp->phydev->autoneg;
+ data->tx_pause = tx_pause ? 1 : 0;
+ data->rx_pause = rx_pause ? 1 : 0;
+}
+
+static int rtl8169_set_pauseparam(struct net_device *dev,
+ struct ethtool_pauseparam *data)
+{
+ struct rtl8169_private *tp = netdev_priv(dev);
+
+ if (dev->mtu > ETH_DATA_LEN)
+ return -EOPNOTSUPP;
+
+ phy_set_asym_pause(tp->phydev, data->rx_pause, data->tx_pause);
+
+ return 0;
+}
+
+static const struct ethtool_ops rtl8169_ethtool_ops = {
+ .supported_coalesce_params = ETHTOOL_COALESCE_USECS |
+ ETHTOOL_COALESCE_MAX_FRAMES,
+ .get_drvinfo = rtl8169_get_drvinfo,
+ .get_regs_len = rtl8169_get_regs_len,
+ .get_link = ethtool_op_get_link,
+ .get_coalesce = rtl_get_coalesce,
+ .set_coalesce = rtl_set_coalesce,
+ .get_regs = rtl8169_get_regs,
+ .get_wol = rtl8169_get_wol,
+ .set_wol = rtl8169_set_wol,
+ .get_strings = rtl8169_get_strings,
+ .get_sset_count = rtl8169_get_sset_count,
+ .get_ethtool_stats = rtl8169_get_ethtool_stats,
+ .get_ts_info = ethtool_op_get_ts_info,
+ .nway_reset = phy_ethtool_nway_reset,
+ .get_eee = rtl8169_get_eee,
+ .set_eee = rtl8169_set_eee,
+ .get_link_ksettings = phy_ethtool_get_link_ksettings,
+ .set_link_ksettings = phy_ethtool_set_link_ksettings,
+ .get_ringparam = rtl8169_get_ringparam,
+ .get_pauseparam = rtl8169_get_pauseparam,
+ .set_pauseparam = rtl8169_set_pauseparam,
+};
+
+static void rtl_enable_eee(struct rtl8169_private *tp)
+{
+ struct phy_device *phydev = tp->phydev;
+ int adv;
+
+ /* respect EEE advertisement the user may have set */
+ if (tp->eee_adv >= 0)
+ adv = tp->eee_adv;
+ else
+ adv = phy_read_mmd(phydev, MDIO_MMD_PCS, MDIO_PCS_EEE_ABLE);
+
+ if (adv >= 0)
+ phy_write_mmd(phydev, MDIO_MMD_AN, MDIO_AN_EEE_ADV, adv);
+}
+
+static enum mac_version rtl8169_get_mac_version(u16 xid, bool gmii)
+{
+ /*
+ * The driver currently handles the 8168Bf and the 8168Be identically
+ * but they can be identified more specifically through the test below
+ * if needed:
+ *
+ * (RTL_R32(tp, TxConfig) & 0x700000) == 0x500000 ? 8168Bf : 8168Be
+ *
+ * Same thing for the 8101Eb and the 8101Ec:
+ *
+ * (RTL_R32(tp, TxConfig) & 0x700000) == 0x200000 ? 8101Eb : 8101Ec
+ */
+ static const struct rtl_mac_info {
+ u16 mask;
+ u16 val;
+ enum mac_version ver;
+ } mac_info[] = {
+ /* 8125B family. */
+ { 0x7cf, 0x641, RTL_GIGA_MAC_VER_63 },
+
+ /* 8125A family. */
+ { 0x7cf, 0x609, RTL_GIGA_MAC_VER_61 },
+ /* It seems only XID 609 made it to the mass market.
+ * { 0x7cf, 0x608, RTL_GIGA_MAC_VER_60 },
+ * { 0x7c8, 0x608, RTL_GIGA_MAC_VER_61 },
+ */
+
+ /* RTL8117 */
+ { 0x7cf, 0x54b, RTL_GIGA_MAC_VER_53 },
+ { 0x7cf, 0x54a, RTL_GIGA_MAC_VER_52 },
+
+ /* 8168EP family. */
+ { 0x7cf, 0x502, RTL_GIGA_MAC_VER_51 },
+ /* It seems this chip version never made it to
+ * the wild. Let's disable detection.
+ * { 0x7cf, 0x501, RTL_GIGA_MAC_VER_50 },
+ * { 0x7cf, 0x500, RTL_GIGA_MAC_VER_49 },
+ */
+
+ /* 8168H family. */
+ { 0x7cf, 0x541, RTL_GIGA_MAC_VER_46 },
+ /* It seems this chip version never made it to
+ * the wild. Let's disable detection.
+ * { 0x7cf, 0x540, RTL_GIGA_MAC_VER_45 },
+ */
+
+ /* 8168G family. */
+ { 0x7cf, 0x5c8, RTL_GIGA_MAC_VER_44 },
+ { 0x7cf, 0x509, RTL_GIGA_MAC_VER_42 },
+ /* It seems this chip version never made it to
+ * the wild. Let's disable detection.
+ * { 0x7cf, 0x4c1, RTL_GIGA_MAC_VER_41 },
+ */
+ { 0x7cf, 0x4c0, RTL_GIGA_MAC_VER_40 },
+
+ /* 8168F family. */
+ { 0x7c8, 0x488, RTL_GIGA_MAC_VER_38 },
+ { 0x7cf, 0x481, RTL_GIGA_MAC_VER_36 },
+ { 0x7cf, 0x480, RTL_GIGA_MAC_VER_35 },
+
+ /* 8168E family. */
+ { 0x7c8, 0x2c8, RTL_GIGA_MAC_VER_34 },
+ { 0x7cf, 0x2c1, RTL_GIGA_MAC_VER_32 },
+ { 0x7c8, 0x2c0, RTL_GIGA_MAC_VER_33 },
+
+ /* 8168D family. */
+ { 0x7cf, 0x281, RTL_GIGA_MAC_VER_25 },
+ { 0x7c8, 0x280, RTL_GIGA_MAC_VER_26 },
+
+ /* 8168DP family. */
+ /* It seems this early RTL8168dp version never made it to
+ * the wild. Support has been removed.
+ * { 0x7cf, 0x288, RTL_GIGA_MAC_VER_27 },
+ */
+ { 0x7cf, 0x28a, RTL_GIGA_MAC_VER_28 },
+ { 0x7cf, 0x28b, RTL_GIGA_MAC_VER_31 },
+
+ /* 8168C family. */
+ { 0x7cf, 0x3c9, RTL_GIGA_MAC_VER_23 },
+ { 0x7cf, 0x3c8, RTL_GIGA_MAC_VER_18 },
+ { 0x7c8, 0x3c8, RTL_GIGA_MAC_VER_24 },
+ { 0x7cf, 0x3c0, RTL_GIGA_MAC_VER_19 },
+ { 0x7cf, 0x3c2, RTL_GIGA_MAC_VER_20 },
+ { 0x7cf, 0x3c3, RTL_GIGA_MAC_VER_21 },
+ { 0x7c8, 0x3c0, RTL_GIGA_MAC_VER_22 },
+
+ /* 8168B family. */
+ { 0x7c8, 0x380, RTL_GIGA_MAC_VER_17 },
+ { 0x7c8, 0x300, RTL_GIGA_MAC_VER_11 },
+
+ /* 8101 family. */
+ { 0x7c8, 0x448, RTL_GIGA_MAC_VER_39 },
+ { 0x7c8, 0x440, RTL_GIGA_MAC_VER_37 },
+ { 0x7cf, 0x409, RTL_GIGA_MAC_VER_29 },
+ { 0x7c8, 0x408, RTL_GIGA_MAC_VER_30 },
+ { 0x7cf, 0x349, RTL_GIGA_MAC_VER_08 },
+ { 0x7cf, 0x249, RTL_GIGA_MAC_VER_08 },
+ { 0x7cf, 0x348, RTL_GIGA_MAC_VER_07 },
+ { 0x7cf, 0x248, RTL_GIGA_MAC_VER_07 },
+ { 0x7cf, 0x240, RTL_GIGA_MAC_VER_14 },
+ { 0x7c8, 0x348, RTL_GIGA_MAC_VER_09 },
+ { 0x7c8, 0x248, RTL_GIGA_MAC_VER_09 },
+ { 0x7c8, 0x340, RTL_GIGA_MAC_VER_10 },
+
+ /* 8110 family. */
+ { 0xfc8, 0x980, RTL_GIGA_MAC_VER_06 },
+ { 0xfc8, 0x180, RTL_GIGA_MAC_VER_05 },
+ { 0xfc8, 0x100, RTL_GIGA_MAC_VER_04 },
+ { 0xfc8, 0x040, RTL_GIGA_MAC_VER_03 },
+ { 0xfc8, 0x008, RTL_GIGA_MAC_VER_02 },
+
+ /* Catch-all */
+ { 0x000, 0x000, RTL_GIGA_MAC_NONE }
+ };
+ const struct rtl_mac_info *p = mac_info;
+ enum mac_version ver;
+
+ while ((xid & p->mask) != p->val)
+ p++;
+ ver = p->ver;
+
+ if (ver != RTL_GIGA_MAC_NONE && !gmii) {
+ if (ver == RTL_GIGA_MAC_VER_42)
+ ver = RTL_GIGA_MAC_VER_43;
+ else if (ver == RTL_GIGA_MAC_VER_46)
+ ver = RTL_GIGA_MAC_VER_48;
+ }
+
+ return ver;
+}
+
+static void rtl_release_firmware(struct rtl8169_private *tp)
+{
+ if (tp->rtl_fw) {
+ rtl_fw_release_firmware(tp->rtl_fw);
+ kfree(tp->rtl_fw);
+ tp->rtl_fw = NULL;
+ }
+}
+
+void r8169_apply_firmware(struct rtl8169_private *tp)
+{
+ int val;
+
+ /* TODO: release firmware if rtl_fw_write_firmware signals failure. */
+ if (tp->rtl_fw) {
+ rtl_fw_write_firmware(tp, tp->rtl_fw);
+ /* At least one firmware doesn't reset tp->ocp_base. */
+ tp->ocp_base = OCP_STD_PHY_BASE;
+
+ /* PHY soft reset may still be in progress */
+ phy_read_poll_timeout(tp->phydev, MII_BMCR, val,
+ !(val & BMCR_RESET),
+ 50000, 600000, true);
+ }
+}
+
+static void rtl8168_config_eee_mac(struct rtl8169_private *tp)
+{
+ /* Adjust EEE LED frequency */
+ if (tp->mac_version != RTL_GIGA_MAC_VER_38)
+ RTL_W8(tp, EEE_LED, RTL_R8(tp, EEE_LED) & ~0x07);
+
+ rtl_eri_set_bits(tp, 0x1b0, 0x0003);
+}
+
+static void rtl8125a_config_eee_mac(struct rtl8169_private *tp)
+{
+ r8168_mac_ocp_modify(tp, 0xe040, 0, BIT(1) | BIT(0));
+ r8168_mac_ocp_modify(tp, 0xeb62, 0, BIT(2) | BIT(1));
+}
+
+static void rtl8125_set_eee_txidle_timer(struct rtl8169_private *tp)
+{
+ RTL_W16(tp, EEE_TXIDLE_TIMER_8125, tp->dev->mtu + ETH_HLEN + 0x20);
+}
+
+static void rtl8125b_config_eee_mac(struct rtl8169_private *tp)
+{
+ rtl8125_set_eee_txidle_timer(tp);
+ r8168_mac_ocp_modify(tp, 0xe040, 0, BIT(1) | BIT(0));
+}
+
+static void rtl_rar_exgmac_set(struct rtl8169_private *tp, const u8 *addr)
+{
+ rtl_eri_write(tp, 0xe0, ERIAR_MASK_1111, get_unaligned_le32(addr));
+ rtl_eri_write(tp, 0xe4, ERIAR_MASK_1111, get_unaligned_le16(addr + 4));
+ rtl_eri_write(tp, 0xf0, ERIAR_MASK_1111, get_unaligned_le16(addr) << 16);
+ rtl_eri_write(tp, 0xf4, ERIAR_MASK_1111, get_unaligned_le32(addr + 2));
+}
+
+u16 rtl8168h_2_get_adc_bias_ioffset(struct rtl8169_private *tp)
+{
+ u16 data1, data2, ioffset;
+
+ r8168_mac_ocp_write(tp, 0xdd02, 0x807d);
+ data1 = r8168_mac_ocp_read(tp, 0xdd02);
+ data2 = r8168_mac_ocp_read(tp, 0xdd00);
+
+ ioffset = (data2 >> 1) & 0x7ff8;
+ ioffset |= data2 & 0x0007;
+ if (data1 & BIT(7))
+ ioffset |= BIT(15);
+
+ return ioffset;
+}
+
+static void rtl_schedule_task(struct rtl8169_private *tp, enum rtl_flag flag)
+{
+ set_bit(flag, tp->wk.flags);
+ schedule_work(&tp->wk.work);
+}
+
+static void rtl8169_init_phy(struct rtl8169_private *tp)
+{
+ r8169_hw_phy_config(tp, tp->phydev, tp->mac_version);
+
+ if (tp->mac_version <= RTL_GIGA_MAC_VER_06) {
+ pci_write_config_byte(tp->pci_dev, PCI_LATENCY_TIMER, 0x40);
+ pci_write_config_byte(tp->pci_dev, PCI_CACHE_LINE_SIZE, 0x08);
+ /* set undocumented MAC Reg C+CR Offset 0x82h */
+ RTL_W8(tp, 0x82, 0x01);
+ }
+
+ if (tp->mac_version == RTL_GIGA_MAC_VER_05 &&
+ tp->pci_dev->subsystem_vendor == PCI_VENDOR_ID_GIGABYTE &&
+ tp->pci_dev->subsystem_device == 0xe000)
+ phy_write_paged(tp->phydev, 0x0001, 0x10, 0xf01b);
+
+ /* We may have called phy_speed_down before */
+ phy_speed_up(tp->phydev);
+
+ if (rtl_supports_eee(tp))
+ rtl_enable_eee(tp);
+
+ genphy_soft_reset(tp->phydev);
+}
+
+static void rtl_rar_set(struct rtl8169_private *tp, const u8 *addr)
+{
+ rtl_unlock_config_regs(tp);
+
+ RTL_W32(tp, MAC4, get_unaligned_le16(addr + 4));
+ rtl_pci_commit(tp);
+
+ RTL_W32(tp, MAC0, get_unaligned_le32(addr));
+ rtl_pci_commit(tp);
+
+ if (tp->mac_version == RTL_GIGA_MAC_VER_34)
+ rtl_rar_exgmac_set(tp, addr);
+
+ rtl_lock_config_regs(tp);
+}
+
+static int rtl_set_mac_address(struct net_device *dev, void *p)
+{
+ struct rtl8169_private *tp = netdev_priv(dev);
+ int ret;
+
+ ret = eth_mac_addr(dev, p);
+ if (ret)
+ return ret;
+
+ rtl_rar_set(tp, dev->dev_addr);
+
+ return 0;
+}
+
+static void rtl_init_rxcfg(struct rtl8169_private *tp)
+{
+ switch (tp->mac_version) {
+ case RTL_GIGA_MAC_VER_02 ... RTL_GIGA_MAC_VER_06:
+ case RTL_GIGA_MAC_VER_10 ... RTL_GIGA_MAC_VER_17:
+ RTL_W32(tp, RxConfig, RX_FIFO_THRESH | RX_DMA_BURST);
+ break;
+ case RTL_GIGA_MAC_VER_18 ... RTL_GIGA_MAC_VER_24:
+ case RTL_GIGA_MAC_VER_34 ... RTL_GIGA_MAC_VER_36:
+ case RTL_GIGA_MAC_VER_38:
+ RTL_W32(tp, RxConfig, RX128_INT_EN | RX_MULTI_EN | RX_DMA_BURST);
+ break;
+ case RTL_GIGA_MAC_VER_40 ... RTL_GIGA_MAC_VER_53:
+ RTL_W32(tp, RxConfig, RX128_INT_EN | RX_MULTI_EN | RX_DMA_BURST | RX_EARLY_OFF);
+ break;
+ case RTL_GIGA_MAC_VER_61:
+ RTL_W32(tp, RxConfig, RX_FETCH_DFLT_8125 | RX_DMA_BURST);
+ break;
+ case RTL_GIGA_MAC_VER_63:
+ RTL_W32(tp, RxConfig, RX_FETCH_DFLT_8125 | RX_DMA_BURST |
+ RX_PAUSE_SLOT_ON);
+ break;
+ default:
+ RTL_W32(tp, RxConfig, RX128_INT_EN | RX_DMA_BURST);
+ break;
+ }
+}
+
+static void rtl8169_init_ring_indexes(struct rtl8169_private *tp)
+{
+ tp->dirty_tx = tp->cur_tx = tp->cur_rx = 0;
+}
+
+static void r8168c_hw_jumbo_enable(struct rtl8169_private *tp)
+{
+ RTL_W8(tp, Config3, RTL_R8(tp, Config3) | Jumbo_En0);
+ RTL_W8(tp, Config4, RTL_R8(tp, Config4) | Jumbo_En1);
+}
+
+static void r8168c_hw_jumbo_disable(struct rtl8169_private *tp)
+{
+ RTL_W8(tp, Config3, RTL_R8(tp, Config3) & ~Jumbo_En0);
+ RTL_W8(tp, Config4, RTL_R8(tp, Config4) & ~Jumbo_En1);
+}
+
+static void r8168dp_hw_jumbo_enable(struct rtl8169_private *tp)
+{
+ RTL_W8(tp, Config3, RTL_R8(tp, Config3) | Jumbo_En0);
+}
+
+static void r8168dp_hw_jumbo_disable(struct rtl8169_private *tp)
+{
+ RTL_W8(tp, Config3, RTL_R8(tp, Config3) & ~Jumbo_En0);
+}
+
+static void r8168e_hw_jumbo_enable(struct rtl8169_private *tp)
+{
+ RTL_W8(tp, MaxTxPacketSize, 0x24);
+ RTL_W8(tp, Config3, RTL_R8(tp, Config3) | Jumbo_En0);
+ RTL_W8(tp, Config4, RTL_R8(tp, Config4) | 0x01);
+}
+
+static void r8168e_hw_jumbo_disable(struct rtl8169_private *tp)
+{
+ RTL_W8(tp, MaxTxPacketSize, 0x3f);
+ RTL_W8(tp, Config3, RTL_R8(tp, Config3) & ~Jumbo_En0);
+ RTL_W8(tp, Config4, RTL_R8(tp, Config4) & ~0x01);
+}
+
+static void r8168b_1_hw_jumbo_enable(struct rtl8169_private *tp)
+{
+ RTL_W8(tp, Config4, RTL_R8(tp, Config4) | (1 << 0));
+}
+
+static void r8168b_1_hw_jumbo_disable(struct rtl8169_private *tp)
+{
+ RTL_W8(tp, Config4, RTL_R8(tp, Config4) & ~(1 << 0));
+}
+
+static void rtl_jumbo_config(struct rtl8169_private *tp)
+{
+ bool jumbo = tp->dev->mtu > ETH_DATA_LEN;
+ int readrq = 4096;
+
+ rtl_unlock_config_regs(tp);
+ switch (tp->mac_version) {
+ case RTL_GIGA_MAC_VER_17:
+ if (jumbo) {
+ readrq = 512;
+ r8168b_1_hw_jumbo_enable(tp);
+ } else {
+ r8168b_1_hw_jumbo_disable(tp);
+ }
+ break;
+ case RTL_GIGA_MAC_VER_18 ... RTL_GIGA_MAC_VER_26:
+ if (jumbo) {
+ readrq = 512;
+ r8168c_hw_jumbo_enable(tp);
+ } else {
+ r8168c_hw_jumbo_disable(tp);
+ }
+ break;
+ case RTL_GIGA_MAC_VER_28:
+ if (jumbo)
+ r8168dp_hw_jumbo_enable(tp);
+ else
+ r8168dp_hw_jumbo_disable(tp);
+ break;
+ case RTL_GIGA_MAC_VER_31 ... RTL_GIGA_MAC_VER_33:
+ if (jumbo)
+ r8168e_hw_jumbo_enable(tp);
+ else
+ r8168e_hw_jumbo_disable(tp);
+ break;
+ default:
+ break;
+ }
+ rtl_lock_config_regs(tp);
+
+ if (pci_is_pcie(tp->pci_dev) && tp->supports_gmii)
+ pcie_set_readrq(tp->pci_dev, readrq);
+
+ /* Chip doesn't support pause in jumbo mode */
+ if (jumbo) {
+ linkmode_clear_bit(ETHTOOL_LINK_MODE_Pause_BIT,
+ tp->phydev->advertising);
+ linkmode_clear_bit(ETHTOOL_LINK_MODE_Asym_Pause_BIT,
+ tp->phydev->advertising);
+ phy_start_aneg(tp->phydev);
+ }
+}
+
+DECLARE_RTL_COND(rtl_chipcmd_cond)
+{
+ return RTL_R8(tp, ChipCmd) & CmdReset;
+}
+
+static void rtl_hw_reset(struct rtl8169_private *tp)
+{
+ RTL_W8(tp, ChipCmd, CmdReset);
+
+ rtl_loop_wait_low(tp, &rtl_chipcmd_cond, 100, 100);
+}
+
+static void rtl_request_firmware(struct rtl8169_private *tp)
+{
+ struct rtl_fw *rtl_fw;
+
+ /* firmware loaded already or no firmware available */
+ if (tp->rtl_fw || !tp->fw_name)
+ return;
+
+ rtl_fw = kzalloc(sizeof(*rtl_fw), GFP_KERNEL);
+ if (!rtl_fw)
+ return;
+
+ rtl_fw->phy_write = rtl_writephy;
+ rtl_fw->phy_read = rtl_readphy;
+ rtl_fw->mac_mcu_write = mac_mcu_write;
+ rtl_fw->mac_mcu_read = mac_mcu_read;
+ rtl_fw->fw_name = tp->fw_name;
+ rtl_fw->dev = tp_to_dev(tp);
+
+ if (rtl_fw_request_firmware(rtl_fw))
+ kfree(rtl_fw);
+ else
+ tp->rtl_fw = rtl_fw;
+}
+
+static void rtl_rx_close(struct rtl8169_private *tp)
+{
+ RTL_W32(tp, RxConfig, RTL_R32(tp, RxConfig) & ~RX_CONFIG_ACCEPT_MASK);
+}
+
+DECLARE_RTL_COND(rtl_npq_cond)
+{
+ return RTL_R8(tp, TxPoll) & NPQ;
+}
+
+DECLARE_RTL_COND(rtl_txcfg_empty_cond)
+{
+ return RTL_R32(tp, TxConfig) & TXCFG_EMPTY;
+}
+
+DECLARE_RTL_COND(rtl_rxtx_empty_cond)
+{
+ return (RTL_R8(tp, MCU) & RXTX_EMPTY) == RXTX_EMPTY;
+}
+
+DECLARE_RTL_COND(rtl_rxtx_empty_cond_2)
+{
+ /* IntrMitigate has new functionality on RTL8125 */
+ return (RTL_R16(tp, IntrMitigate) & 0x0103) == 0x0103;
+}
+
+static void rtl_wait_txrx_fifo_empty(struct rtl8169_private *tp)
+{
+ switch (tp->mac_version) {
+ case RTL_GIGA_MAC_VER_40 ... RTL_GIGA_MAC_VER_53:
+ rtl_loop_wait_high(tp, &rtl_txcfg_empty_cond, 100, 42);
+ rtl_loop_wait_high(tp, &rtl_rxtx_empty_cond, 100, 42);
+ break;
+ case RTL_GIGA_MAC_VER_61 ... RTL_GIGA_MAC_VER_61:
+ rtl_loop_wait_high(tp, &rtl_rxtx_empty_cond, 100, 42);
+ break;
+ case RTL_GIGA_MAC_VER_63:
+ RTL_W8(tp, ChipCmd, RTL_R8(tp, ChipCmd) | StopReq);
+ rtl_loop_wait_high(tp, &rtl_rxtx_empty_cond, 100, 42);
+ rtl_loop_wait_high(tp, &rtl_rxtx_empty_cond_2, 100, 42);
+ break;
+ default:
+ break;
+ }
+}
+
+static void rtl_disable_rxdvgate(struct rtl8169_private *tp)
+{
+ RTL_W32(tp, MISC, RTL_R32(tp, MISC) & ~RXDV_GATED_EN);
+}
+
+static void rtl_enable_rxdvgate(struct rtl8169_private *tp)
+{
+ RTL_W32(tp, MISC, RTL_R32(tp, MISC) | RXDV_GATED_EN);
+ fsleep(2000);
+ rtl_wait_txrx_fifo_empty(tp);
+}
+
+static void rtl_wol_enable_rx(struct rtl8169_private *tp)
+{
+ if (tp->mac_version >= RTL_GIGA_MAC_VER_25)
+ RTL_W32(tp, RxConfig, RTL_R32(tp, RxConfig) |
+ AcceptBroadcast | AcceptMulticast | AcceptMyPhys);
+
+ if (tp->mac_version >= RTL_GIGA_MAC_VER_40)
+ rtl_disable_rxdvgate(tp);
+}
+
+static void rtl_prepare_power_down(struct rtl8169_private *tp)
+{
+ if (tp->dash_enabled)
+ return;
+
+ if (tp->mac_version == RTL_GIGA_MAC_VER_32 ||
+ tp->mac_version == RTL_GIGA_MAC_VER_33)
+ rtl_ephy_write(tp, 0x19, 0xff64);
+
+ if (device_may_wakeup(tp_to_dev(tp))) {
+ phy_speed_down(tp->phydev, false);
+ rtl_wol_enable_rx(tp);
+ }
+}
+
+static void rtl_set_tx_config_registers(struct rtl8169_private *tp)
+{
+ u32 val = TX_DMA_BURST << TxDMAShift |
+ InterFrameGap << TxInterFrameGapShift;
+
+ if (rtl_is_8168evl_up(tp))
+ val |= TXCFG_AUTO_FIFO;
+
+ RTL_W32(tp, TxConfig, val);
+}
+
+static void rtl_set_rx_max_size(struct rtl8169_private *tp)
+{
+ /* Low hurts. Let's disable the filtering. */
+ RTL_W16(tp, RxMaxSize, R8169_RX_BUF_SIZE + 1);
+}
+
+static void rtl_set_rx_tx_desc_registers(struct rtl8169_private *tp)
+{
+ /*
+ * Magic spell: some iop3xx ARM board needs the TxDescAddrHigh
+ * register to be written before TxDescAddrLow to work.
+ * Switching from MMIO to I/O access fixes the issue as well.
+ */
+ RTL_W32(tp, TxDescStartAddrHigh, ((u64) tp->TxPhyAddr) >> 32);
+ RTL_W32(tp, TxDescStartAddrLow, ((u64) tp->TxPhyAddr) & DMA_BIT_MASK(32));
+ RTL_W32(tp, RxDescAddrHigh, ((u64) tp->RxPhyAddr) >> 32);
+ RTL_W32(tp, RxDescAddrLow, ((u64) tp->RxPhyAddr) & DMA_BIT_MASK(32));
+}
+
+static void rtl8169_set_magic_reg(struct rtl8169_private *tp)
+{
+ u32 val;
+
+ if (tp->mac_version == RTL_GIGA_MAC_VER_05)
+ val = 0x000fff00;
+ else if (tp->mac_version == RTL_GIGA_MAC_VER_06)
+ val = 0x00ffff00;
+ else
+ return;
+
+ if (RTL_R8(tp, Config2) & PCI_Clock_66MHz)
+ val |= 0xff;
+
+ RTL_W32(tp, 0x7c, val);
+}
+
+static void rtl_set_rx_mode(struct net_device *dev)
+{
+ u32 rx_mode = AcceptBroadcast | AcceptMyPhys | AcceptMulticast;
+ /* Multicast hash filter */
+ u32 mc_filter[2] = { 0xffffffff, 0xffffffff };
+ struct rtl8169_private *tp = netdev_priv(dev);
+ u32 tmp;
+
+ if (dev->flags & IFF_PROMISC) {
+ rx_mode |= AcceptAllPhys;
+ } else if (!(dev->flags & IFF_MULTICAST)) {
+ rx_mode &= ~AcceptMulticast;
+ } else if (netdev_mc_count(dev) > MC_FILTER_LIMIT ||
+ dev->flags & IFF_ALLMULTI ||
+ tp->mac_version == RTL_GIGA_MAC_VER_35) {
+ /* accept all multicasts */
+ } else if (netdev_mc_empty(dev)) {
+ rx_mode &= ~AcceptMulticast;
+ } else {
+ struct netdev_hw_addr *ha;
+
+ mc_filter[1] = mc_filter[0] = 0;
+ netdev_for_each_mc_addr(ha, dev) {
+ u32 bit_nr = eth_hw_addr_crc(ha) >> 26;
+ mc_filter[bit_nr >> 5] |= BIT(bit_nr & 31);
+ }
+
+ if (tp->mac_version > RTL_GIGA_MAC_VER_06) {
+ tmp = mc_filter[0];
+ mc_filter[0] = swab32(mc_filter[1]);
+ mc_filter[1] = swab32(tmp);
+ }
+ }
+
+ RTL_W32(tp, MAR0 + 4, mc_filter[1]);
+ RTL_W32(tp, MAR0 + 0, mc_filter[0]);
+
+ tmp = RTL_R32(tp, RxConfig);
+ RTL_W32(tp, RxConfig, (tmp & ~RX_CONFIG_ACCEPT_OK_MASK) | rx_mode);
+}
+
+DECLARE_RTL_COND(rtl_csiar_cond)
+{
+ return RTL_R32(tp, CSIAR) & CSIAR_FLAG;
+}
+
+static void rtl_csi_write(struct rtl8169_private *tp, int addr, int value)
+{
+ u32 func = PCI_FUNC(tp->pci_dev->devfn);
+
+ RTL_W32(tp, CSIDR, value);
+ RTL_W32(tp, CSIAR, CSIAR_WRITE_CMD | (addr & CSIAR_ADDR_MASK) |
+ CSIAR_BYTE_ENABLE | func << 16);
+
+ rtl_loop_wait_low(tp, &rtl_csiar_cond, 10, 100);
+}
+
+static u32 rtl_csi_read(struct rtl8169_private *tp, int addr)
+{
+ u32 func = PCI_FUNC(tp->pci_dev->devfn);
+
+ RTL_W32(tp, CSIAR, (addr & CSIAR_ADDR_MASK) | func << 16 |
+ CSIAR_BYTE_ENABLE);
+
+ return rtl_loop_wait_high(tp, &rtl_csiar_cond, 10, 100) ?
+ RTL_R32(tp, CSIDR) : ~0;
+}
+
+static void rtl_set_aspm_entry_latency(struct rtl8169_private *tp, u8 val)
+{
+ struct pci_dev *pdev = tp->pci_dev;
+ u32 csi;
+
+ /* According to Realtek the value at config space address 0x070f
+ * controls the L0s/L1 entrance latency. We try standard ECAM access
+ * first and if it fails fall back to CSI.
+ * bit 0..2: L0: 0 = 1us, 1 = 2us .. 6 = 7us, 7 = 7us (no typo)
+ * bit 3..5: L1: 0 = 1us, 1 = 2us .. 6 = 64us, 7 = 64us
+ */
+ if (pdev->cfg_size > 0x070f &&
+ pci_write_config_byte(pdev, 0x070f, val) == PCIBIOS_SUCCESSFUL)
+ return;
+
+ netdev_notice_once(tp->dev,
+ "No native access to PCI extended config space, falling back to CSI\n");
+ csi = rtl_csi_read(tp, 0x070c) & 0x00ffffff;
+ rtl_csi_write(tp, 0x070c, csi | val << 24);
+}
+
+static void rtl_set_def_aspm_entry_latency(struct rtl8169_private *tp)
+{
+ /* L0 7us, L1 16us */
+ rtl_set_aspm_entry_latency(tp, 0x27);
+}
+
+struct ephy_info {
+ unsigned int offset;
+ u16 mask;
+ u16 bits;
+};
+
+static void __rtl_ephy_init(struct rtl8169_private *tp,
+ const struct ephy_info *e, int len)
+{
+ u16 w;
+
+ while (len-- > 0) {
+ w = (rtl_ephy_read(tp, e->offset) & ~e->mask) | e->bits;
+ rtl_ephy_write(tp, e->offset, w);
+ e++;
+ }
+}
+
+#define rtl_ephy_init(tp, a) __rtl_ephy_init(tp, a, ARRAY_SIZE(a))
+
+static void rtl_disable_clock_request(struct rtl8169_private *tp)
+{
+ pcie_capability_clear_word(tp->pci_dev, PCI_EXP_LNKCTL,
+ PCI_EXP_LNKCTL_CLKREQ_EN);
+}
+
+static void rtl_enable_clock_request(struct rtl8169_private *tp)
+{
+ pcie_capability_set_word(tp->pci_dev, PCI_EXP_LNKCTL,
+ PCI_EXP_LNKCTL_CLKREQ_EN);
+}
+
+static void rtl_pcie_state_l2l3_disable(struct rtl8169_private *tp)
+{
+ /* work around an issue when PCI reset occurs during L2/L3 state */
+ RTL_W8(tp, Config3, RTL_R8(tp, Config3) & ~Rdy_to_L23);
+}
+
+static void rtl_enable_exit_l1(struct rtl8169_private *tp)
+{
+ /* Bits control which events trigger ASPM L1 exit:
+ * Bit 12: rxdv
+ * Bit 11: ltr_msg
+ * Bit 10: txdma_poll
+ * Bit 9: xadm
+ * Bit 8: pktavi
+ * Bit 7: txpla
+ */
+ switch (tp->mac_version) {
+ case RTL_GIGA_MAC_VER_34 ... RTL_GIGA_MAC_VER_36:
+ rtl_eri_set_bits(tp, 0xd4, 0x1f00);
+ break;
+ case RTL_GIGA_MAC_VER_37 ... RTL_GIGA_MAC_VER_38:
+ rtl_eri_set_bits(tp, 0xd4, 0x0c00);
+ break;
+ case RTL_GIGA_MAC_VER_40 ... RTL_GIGA_MAC_VER_63:
+ r8168_mac_ocp_modify(tp, 0xc0ac, 0, 0x1f80);
+ break;
+ default:
+ break;
+ }
+}
+
+static void rtl_disable_exit_l1(struct rtl8169_private *tp)
+{
+ switch (tp->mac_version) {
+ case RTL_GIGA_MAC_VER_34 ... RTL_GIGA_MAC_VER_38:
+ rtl_eri_clear_bits(tp, 0xd4, 0x1f00);
+ break;
+ case RTL_GIGA_MAC_VER_40 ... RTL_GIGA_MAC_VER_63:
+ r8168_mac_ocp_modify(tp, 0xc0ac, 0x1f80, 0);
+ break;
+ default:
+ break;
+ }
+}
+
+static void rtl_hw_aspm_clkreq_enable(struct rtl8169_private *tp, bool enable)
+{
+ /* Don't enable ASPM in the chip if OS can't control ASPM */
+ if (enable && tp->aspm_manageable) {
+ RTL_W8(tp, Config5, RTL_R8(tp, Config5) | ASPM_en);
+ RTL_W8(tp, Config2, RTL_R8(tp, Config2) | ClkReqEn);
+
+ switch (tp->mac_version) {
+ case RTL_GIGA_MAC_VER_46 ... RTL_GIGA_MAC_VER_48:
+ case RTL_GIGA_MAC_VER_61 ... RTL_GIGA_MAC_VER_63:
+ /* reset ephy tx/rx disable timer */
+ r8168_mac_ocp_modify(tp, 0xe094, 0xff00, 0);
+ /* chip can trigger L1.2 */
+ r8168_mac_ocp_modify(tp, 0xe092, 0x00ff, BIT(2));
+ break;
+ default:
+ break;
+ }
+ } else {
+ switch (tp->mac_version) {
+ case RTL_GIGA_MAC_VER_46 ... RTL_GIGA_MAC_VER_48:
+ case RTL_GIGA_MAC_VER_61 ... RTL_GIGA_MAC_VER_63:
+ r8168_mac_ocp_modify(tp, 0xe092, 0x00ff, 0);
+ break;
+ default:
+ break;
+ }
+
+ RTL_W8(tp, Config2, RTL_R8(tp, Config2) & ~ClkReqEn);
+ RTL_W8(tp, Config5, RTL_R8(tp, Config5) & ~ASPM_en);
+ }
+
+ udelay(10);
+}
+
+static void rtl_set_fifo_size(struct rtl8169_private *tp, u16 rx_stat,
+ u16 tx_stat, u16 rx_dyn, u16 tx_dyn)
+{
+ /* Usage of dynamic vs. static FIFO is controlled by bit
+ * TXCFG_AUTO_FIFO. Exact meaning of FIFO values isn't known.
+ */
+ rtl_eri_write(tp, 0xc8, ERIAR_MASK_1111, (rx_stat << 16) | rx_dyn);
+ rtl_eri_write(tp, 0xe8, ERIAR_MASK_1111, (tx_stat << 16) | tx_dyn);
+}
+
+static void rtl8168g_set_pause_thresholds(struct rtl8169_private *tp,
+ u8 low, u8 high)
+{
+ /* FIFO thresholds for pause flow control */
+ rtl_eri_write(tp, 0xcc, ERIAR_MASK_0001, low);
+ rtl_eri_write(tp, 0xd0, ERIAR_MASK_0001, high);
+}
+
+static void rtl_hw_start_8168b(struct rtl8169_private *tp)
+{
+ RTL_W8(tp, Config3, RTL_R8(tp, Config3) & ~Beacon_en);
+}
+
+static void __rtl_hw_start_8168cp(struct rtl8169_private *tp)
+{
+ RTL_W8(tp, Config1, RTL_R8(tp, Config1) | Speed_down);
+
+ RTL_W8(tp, Config3, RTL_R8(tp, Config3) & ~Beacon_en);
+
+ rtl_disable_clock_request(tp);
+}
+
+static void rtl_hw_start_8168cp_1(struct rtl8169_private *tp)
+{
+ static const struct ephy_info e_info_8168cp[] = {
+ { 0x01, 0, 0x0001 },
+ { 0x02, 0x0800, 0x1000 },
+ { 0x03, 0, 0x0042 },
+ { 0x06, 0x0080, 0x0000 },
+ { 0x07, 0, 0x2000 }
+ };
+
+ rtl_set_def_aspm_entry_latency(tp);
+
+ rtl_ephy_init(tp, e_info_8168cp);
+
+ __rtl_hw_start_8168cp(tp);
+}
+
+static void rtl_hw_start_8168cp_2(struct rtl8169_private *tp)
+{
+ rtl_set_def_aspm_entry_latency(tp);
+
+ RTL_W8(tp, Config3, RTL_R8(tp, Config3) & ~Beacon_en);
+}
+
+static void rtl_hw_start_8168cp_3(struct rtl8169_private *tp)
+{
+ rtl_set_def_aspm_entry_latency(tp);
+
+ RTL_W8(tp, Config3, RTL_R8(tp, Config3) & ~Beacon_en);
+
+ /* Magic. */
+ RTL_W8(tp, DBG_REG, 0x20);
+}
+
+static void rtl_hw_start_8168c_1(struct rtl8169_private *tp)
+{
+ static const struct ephy_info e_info_8168c_1[] = {
+ { 0x02, 0x0800, 0x1000 },
+ { 0x03, 0, 0x0002 },
+ { 0x06, 0x0080, 0x0000 }
+ };
+
+ rtl_set_def_aspm_entry_latency(tp);
+
+ RTL_W8(tp, DBG_REG, 0x06 | FIX_NAK_1 | FIX_NAK_2);
+
+ rtl_ephy_init(tp, e_info_8168c_1);
+
+ __rtl_hw_start_8168cp(tp);
+}
+
+static void rtl_hw_start_8168c_2(struct rtl8169_private *tp)
+{
+ static const struct ephy_info e_info_8168c_2[] = {
+ { 0x01, 0, 0x0001 },
+ { 0x03, 0x0400, 0x0020 }
+ };
+
+ rtl_set_def_aspm_entry_latency(tp);
+
+ rtl_ephy_init(tp, e_info_8168c_2);
+
+ __rtl_hw_start_8168cp(tp);
+}
+
+static void rtl_hw_start_8168c_4(struct rtl8169_private *tp)
+{
+ rtl_set_def_aspm_entry_latency(tp);
+
+ __rtl_hw_start_8168cp(tp);
+}
+
+static void rtl_hw_start_8168d(struct rtl8169_private *tp)
+{
+ rtl_set_def_aspm_entry_latency(tp);
+
+ rtl_disable_clock_request(tp);
+}
+
+static void rtl_hw_start_8168d_4(struct rtl8169_private *tp)
+{
+ static const struct ephy_info e_info_8168d_4[] = {
+ { 0x0b, 0x0000, 0x0048 },
+ { 0x19, 0x0020, 0x0050 },
+ { 0x0c, 0x0100, 0x0020 },
+ { 0x10, 0x0004, 0x0000 },
+ };
+
+ rtl_set_def_aspm_entry_latency(tp);
+
+ rtl_ephy_init(tp, e_info_8168d_4);
+
+ rtl_enable_clock_request(tp);
+}
+
+static void rtl_hw_start_8168e_1(struct rtl8169_private *tp)
+{
+ static const struct ephy_info e_info_8168e_1[] = {
+ { 0x00, 0x0200, 0x0100 },
+ { 0x00, 0x0000, 0x0004 },
+ { 0x06, 0x0002, 0x0001 },
+ { 0x06, 0x0000, 0x0030 },
+ { 0x07, 0x0000, 0x2000 },
+ { 0x00, 0x0000, 0x0020 },
+ { 0x03, 0x5800, 0x2000 },
+ { 0x03, 0x0000, 0x0001 },
+ { 0x01, 0x0800, 0x1000 },
+ { 0x07, 0x0000, 0x4000 },
+ { 0x1e, 0x0000, 0x2000 },
+ { 0x19, 0xffff, 0xfe6c },
+ { 0x0a, 0x0000, 0x0040 }
+ };
+
+ rtl_set_def_aspm_entry_latency(tp);
+
+ rtl_ephy_init(tp, e_info_8168e_1);
+
+ rtl_disable_clock_request(tp);
+
+ /* Reset tx FIFO pointer */
+ RTL_W32(tp, MISC, RTL_R32(tp, MISC) | TXPLA_RST);
+ RTL_W32(tp, MISC, RTL_R32(tp, MISC) & ~TXPLA_RST);
+
+ RTL_W8(tp, Config5, RTL_R8(tp, Config5) & ~Spi_en);
+}
+
+static void rtl_hw_start_8168e_2(struct rtl8169_private *tp)
+{
+ static const struct ephy_info e_info_8168e_2[] = {
+ { 0x09, 0x0000, 0x0080 },
+ { 0x19, 0x0000, 0x0224 },
+ { 0x00, 0x0000, 0x0004 },
+ { 0x0c, 0x3df0, 0x0200 },
+ };
+
+ rtl_set_def_aspm_entry_latency(tp);
+
+ rtl_ephy_init(tp, e_info_8168e_2);
+
+ rtl_eri_write(tp, 0xc0, ERIAR_MASK_0011, 0x0000);
+ rtl_eri_write(tp, 0xb8, ERIAR_MASK_1111, 0x0000);
+ rtl_set_fifo_size(tp, 0x10, 0x10, 0x02, 0x06);
+ rtl_eri_set_bits(tp, 0x1d0, BIT(1));
+ rtl_reset_packet_filter(tp);
+ rtl_eri_set_bits(tp, 0x1b0, BIT(4));
+ rtl_eri_write(tp, 0xcc, ERIAR_MASK_1111, 0x00000050);
+ rtl_eri_write(tp, 0xd0, ERIAR_MASK_1111, 0x07ff0060);
+
+ rtl_disable_clock_request(tp);
+
+ RTL_W8(tp, MCU, RTL_R8(tp, MCU) & ~NOW_IS_OOB);
+
+ rtl8168_config_eee_mac(tp);
+
+ RTL_W8(tp, DLLPR, RTL_R8(tp, DLLPR) | PFM_EN);
+ RTL_W32(tp, MISC, RTL_R32(tp, MISC) | PWM_EN);
+ RTL_W8(tp, Config5, RTL_R8(tp, Config5) & ~Spi_en);
+
+ rtl_hw_aspm_clkreq_enable(tp, true);
+}
+
+static void rtl_hw_start_8168f(struct rtl8169_private *tp)
+{
+ rtl_set_def_aspm_entry_latency(tp);
+
+ rtl_eri_write(tp, 0xc0, ERIAR_MASK_0011, 0x0000);
+ rtl_eri_write(tp, 0xb8, ERIAR_MASK_1111, 0x0000);
+ rtl_set_fifo_size(tp, 0x10, 0x10, 0x02, 0x06);
+ rtl_reset_packet_filter(tp);
+ rtl_eri_set_bits(tp, 0x1b0, BIT(4));
+ rtl_eri_set_bits(tp, 0x1d0, BIT(4) | BIT(1));
+ rtl_eri_write(tp, 0xcc, ERIAR_MASK_1111, 0x00000050);
+ rtl_eri_write(tp, 0xd0, ERIAR_MASK_1111, 0x00000060);
+
+ rtl_disable_clock_request(tp);
+
+ RTL_W8(tp, MCU, RTL_R8(tp, MCU) & ~NOW_IS_OOB);
+ RTL_W8(tp, DLLPR, RTL_R8(tp, DLLPR) | PFM_EN);
+ RTL_W32(tp, MISC, RTL_R32(tp, MISC) | PWM_EN);
+ RTL_W8(tp, Config5, RTL_R8(tp, Config5) & ~Spi_en);
+
+ rtl8168_config_eee_mac(tp);
+}
+
+static void rtl_hw_start_8168f_1(struct rtl8169_private *tp)
+{
+ static const struct ephy_info e_info_8168f_1[] = {
+ { 0x06, 0x00c0, 0x0020 },
+ { 0x08, 0x0001, 0x0002 },
+ { 0x09, 0x0000, 0x0080 },
+ { 0x19, 0x0000, 0x0224 },
+ { 0x00, 0x0000, 0x0008 },
+ { 0x0c, 0x3df0, 0x0200 },
+ };
+
+ rtl_hw_start_8168f(tp);
+
+ rtl_ephy_init(tp, e_info_8168f_1);
+}
+
+static void rtl_hw_start_8411(struct rtl8169_private *tp)
+{
+ static const struct ephy_info e_info_8168f_1[] = {
+ { 0x06, 0x00c0, 0x0020 },
+ { 0x0f, 0xffff, 0x5200 },
+ { 0x19, 0x0000, 0x0224 },
+ { 0x00, 0x0000, 0x0008 },
+ { 0x0c, 0x3df0, 0x0200 },
+ };
+
+ rtl_hw_start_8168f(tp);
+ rtl_pcie_state_l2l3_disable(tp);
+
+ rtl_ephy_init(tp, e_info_8168f_1);
+}
+
+static void rtl_hw_start_8168g(struct rtl8169_private *tp)
+{
+ rtl_set_fifo_size(tp, 0x08, 0x10, 0x02, 0x06);
+ rtl8168g_set_pause_thresholds(tp, 0x38, 0x48);
+
+ rtl_set_def_aspm_entry_latency(tp);
+
+ rtl_reset_packet_filter(tp);
+ rtl_eri_write(tp, 0x2f8, ERIAR_MASK_0011, 0x1d8f);
+
+ rtl_disable_rxdvgate(tp);
+
+ rtl_eri_write(tp, 0xc0, ERIAR_MASK_0011, 0x0000);
+ rtl_eri_write(tp, 0xb8, ERIAR_MASK_0011, 0x0000);
+
+ rtl8168_config_eee_mac(tp);
+
+ rtl_w0w1_eri(tp, 0x2fc, 0x01, 0x06);
+ rtl_eri_clear_bits(tp, 0x1b0, BIT(12));
+
+ rtl_pcie_state_l2l3_disable(tp);
+}
+
+static void rtl_hw_start_8168g_1(struct rtl8169_private *tp)
+{
+ static const struct ephy_info e_info_8168g_1[] = {
+ { 0x00, 0x0008, 0x0000 },
+ { 0x0c, 0x3ff0, 0x0820 },
+ { 0x1e, 0x0000, 0x0001 },
+ { 0x19, 0x8000, 0x0000 }
+ };
+
+ rtl_hw_start_8168g(tp);
+
+ /* disable aspm and clock request before access ephy */
+ rtl_hw_aspm_clkreq_enable(tp, false);
+ rtl_ephy_init(tp, e_info_8168g_1);
+ rtl_hw_aspm_clkreq_enable(tp, true);
+}
+
+static void rtl_hw_start_8168g_2(struct rtl8169_private *tp)
+{
+ static const struct ephy_info e_info_8168g_2[] = {
+ { 0x00, 0x0008, 0x0000 },
+ { 0x0c, 0x3ff0, 0x0820 },
+ { 0x19, 0xffff, 0x7c00 },
+ { 0x1e, 0xffff, 0x20eb },
+ { 0x0d, 0xffff, 0x1666 },
+ { 0x00, 0xffff, 0x10a3 },
+ { 0x06, 0xffff, 0xf050 },
+ { 0x04, 0x0000, 0x0010 },
+ { 0x1d, 0x4000, 0x0000 },
+ };
+
+ rtl_hw_start_8168g(tp);
+
+ /* disable aspm and clock request before access ephy */
+ rtl_hw_aspm_clkreq_enable(tp, false);
+ rtl_ephy_init(tp, e_info_8168g_2);
+}
+
+static void rtl_hw_start_8411_2(struct rtl8169_private *tp)
+{
+ static const struct ephy_info e_info_8411_2[] = {
+ { 0x00, 0x0008, 0x0000 },
+ { 0x0c, 0x37d0, 0x0820 },
+ { 0x1e, 0x0000, 0x0001 },
+ { 0x19, 0x8021, 0x0000 },
+ { 0x1e, 0x0000, 0x2000 },
+ { 0x0d, 0x0100, 0x0200 },
+ { 0x00, 0x0000, 0x0080 },
+ { 0x06, 0x0000, 0x0010 },
+ { 0x04, 0x0000, 0x0010 },
+ { 0x1d, 0x0000, 0x4000 },
+ };
+
+ rtl_hw_start_8168g(tp);
+
+ /* disable aspm and clock request before access ephy */
+ rtl_hw_aspm_clkreq_enable(tp, false);
+ rtl_ephy_init(tp, e_info_8411_2);
+
+ /* The following Realtek-provided magic fixes an issue with the RX unit
+ * getting confused after the PHY having been powered-down.
+ */
+ r8168_mac_ocp_write(tp, 0xFC28, 0x0000);
+ r8168_mac_ocp_write(tp, 0xFC2A, 0x0000);
+ r8168_mac_ocp_write(tp, 0xFC2C, 0x0000);
+ r8168_mac_ocp_write(tp, 0xFC2E, 0x0000);
+ r8168_mac_ocp_write(tp, 0xFC30, 0x0000);
+ r8168_mac_ocp_write(tp, 0xFC32, 0x0000);
+ r8168_mac_ocp_write(tp, 0xFC34, 0x0000);
+ r8168_mac_ocp_write(tp, 0xFC36, 0x0000);
+ mdelay(3);
+ r8168_mac_ocp_write(tp, 0xFC26, 0x0000);
+
+ r8168_mac_ocp_write(tp, 0xF800, 0xE008);
+ r8168_mac_ocp_write(tp, 0xF802, 0xE00A);
+ r8168_mac_ocp_write(tp, 0xF804, 0xE00C);
+ r8168_mac_ocp_write(tp, 0xF806, 0xE00E);
+ r8168_mac_ocp_write(tp, 0xF808, 0xE027);
+ r8168_mac_ocp_write(tp, 0xF80A, 0xE04F);
+ r8168_mac_ocp_write(tp, 0xF80C, 0xE05E);
+ r8168_mac_ocp_write(tp, 0xF80E, 0xE065);
+ r8168_mac_ocp_write(tp, 0xF810, 0xC602);
+ r8168_mac_ocp_write(tp, 0xF812, 0xBE00);
+ r8168_mac_ocp_write(tp, 0xF814, 0x0000);
+ r8168_mac_ocp_write(tp, 0xF816, 0xC502);
+ r8168_mac_ocp_write(tp, 0xF818, 0xBD00);
+ r8168_mac_ocp_write(tp, 0xF81A, 0x074C);
+ r8168_mac_ocp_write(tp, 0xF81C, 0xC302);
+ r8168_mac_ocp_write(tp, 0xF81E, 0xBB00);
+ r8168_mac_ocp_write(tp, 0xF820, 0x080A);
+ r8168_mac_ocp_write(tp, 0xF822, 0x6420);
+ r8168_mac_ocp_write(tp, 0xF824, 0x48C2);
+ r8168_mac_ocp_write(tp, 0xF826, 0x8C20);
+ r8168_mac_ocp_write(tp, 0xF828, 0xC516);
+ r8168_mac_ocp_write(tp, 0xF82A, 0x64A4);
+ r8168_mac_ocp_write(tp, 0xF82C, 0x49C0);
+ r8168_mac_ocp_write(tp, 0xF82E, 0xF009);
+ r8168_mac_ocp_write(tp, 0xF830, 0x74A2);
+ r8168_mac_ocp_write(tp, 0xF832, 0x8CA5);
+ r8168_mac_ocp_write(tp, 0xF834, 0x74A0);
+ r8168_mac_ocp_write(tp, 0xF836, 0xC50E);
+ r8168_mac_ocp_write(tp, 0xF838, 0x9CA2);
+ r8168_mac_ocp_write(tp, 0xF83A, 0x1C11);
+ r8168_mac_ocp_write(tp, 0xF83C, 0x9CA0);
+ r8168_mac_ocp_write(tp, 0xF83E, 0xE006);
+ r8168_mac_ocp_write(tp, 0xF840, 0x74F8);
+ r8168_mac_ocp_write(tp, 0xF842, 0x48C4);
+ r8168_mac_ocp_write(tp, 0xF844, 0x8CF8);
+ r8168_mac_ocp_write(tp, 0xF846, 0xC404);
+ r8168_mac_ocp_write(tp, 0xF848, 0xBC00);
+ r8168_mac_ocp_write(tp, 0xF84A, 0xC403);
+ r8168_mac_ocp_write(tp, 0xF84C, 0xBC00);
+ r8168_mac_ocp_write(tp, 0xF84E, 0x0BF2);
+ r8168_mac_ocp_write(tp, 0xF850, 0x0C0A);
+ r8168_mac_ocp_write(tp, 0xF852, 0xE434);
+ r8168_mac_ocp_write(tp, 0xF854, 0xD3C0);
+ r8168_mac_ocp_write(tp, 0xF856, 0x49D9);
+ r8168_mac_ocp_write(tp, 0xF858, 0xF01F);
+ r8168_mac_ocp_write(tp, 0xF85A, 0xC526);
+ r8168_mac_ocp_write(tp, 0xF85C, 0x64A5);
+ r8168_mac_ocp_write(tp, 0xF85E, 0x1400);
+ r8168_mac_ocp_write(tp, 0xF860, 0xF007);
+ r8168_mac_ocp_write(tp, 0xF862, 0x0C01);
+ r8168_mac_ocp_write(tp, 0xF864, 0x8CA5);
+ r8168_mac_ocp_write(tp, 0xF866, 0x1C15);
+ r8168_mac_ocp_write(tp, 0xF868, 0xC51B);
+ r8168_mac_ocp_write(tp, 0xF86A, 0x9CA0);
+ r8168_mac_ocp_write(tp, 0xF86C, 0xE013);
+ r8168_mac_ocp_write(tp, 0xF86E, 0xC519);
+ r8168_mac_ocp_write(tp, 0xF870, 0x74A0);
+ r8168_mac_ocp_write(tp, 0xF872, 0x48C4);
+ r8168_mac_ocp_write(tp, 0xF874, 0x8CA0);
+ r8168_mac_ocp_write(tp, 0xF876, 0xC516);
+ r8168_mac_ocp_write(tp, 0xF878, 0x74A4);
+ r8168_mac_ocp_write(tp, 0xF87A, 0x48C8);
+ r8168_mac_ocp_write(tp, 0xF87C, 0x48CA);
+ r8168_mac_ocp_write(tp, 0xF87E, 0x9CA4);
+ r8168_mac_ocp_write(tp, 0xF880, 0xC512);
+ r8168_mac_ocp_write(tp, 0xF882, 0x1B00);
+ r8168_mac_ocp_write(tp, 0xF884, 0x9BA0);
+ r8168_mac_ocp_write(tp, 0xF886, 0x1B1C);
+ r8168_mac_ocp_write(tp, 0xF888, 0x483F);
+ r8168_mac_ocp_write(tp, 0xF88A, 0x9BA2);
+ r8168_mac_ocp_write(tp, 0xF88C, 0x1B04);
+ r8168_mac_ocp_write(tp, 0xF88E, 0xC508);
+ r8168_mac_ocp_write(tp, 0xF890, 0x9BA0);
+ r8168_mac_ocp_write(tp, 0xF892, 0xC505);
+ r8168_mac_ocp_write(tp, 0xF894, 0xBD00);
+ r8168_mac_ocp_write(tp, 0xF896, 0xC502);
+ r8168_mac_ocp_write(tp, 0xF898, 0xBD00);
+ r8168_mac_ocp_write(tp, 0xF89A, 0x0300);
+ r8168_mac_ocp_write(tp, 0xF89C, 0x051E);
+ r8168_mac_ocp_write(tp, 0xF89E, 0xE434);
+ r8168_mac_ocp_write(tp, 0xF8A0, 0xE018);
+ r8168_mac_ocp_write(tp, 0xF8A2, 0xE092);
+ r8168_mac_ocp_write(tp, 0xF8A4, 0xDE20);
+ r8168_mac_ocp_write(tp, 0xF8A6, 0xD3C0);
+ r8168_mac_ocp_write(tp, 0xF8A8, 0xC50F);
+ r8168_mac_ocp_write(tp, 0xF8AA, 0x76A4);
+ r8168_mac_ocp_write(tp, 0xF8AC, 0x49E3);
+ r8168_mac_ocp_write(tp, 0xF8AE, 0xF007);
+ r8168_mac_ocp_write(tp, 0xF8B0, 0x49C0);
+ r8168_mac_ocp_write(tp, 0xF8B2, 0xF103);
+ r8168_mac_ocp_write(tp, 0xF8B4, 0xC607);
+ r8168_mac_ocp_write(tp, 0xF8B6, 0xBE00);
+ r8168_mac_ocp_write(tp, 0xF8B8, 0xC606);
+ r8168_mac_ocp_write(tp, 0xF8BA, 0xBE00);
+ r8168_mac_ocp_write(tp, 0xF8BC, 0xC602);
+ r8168_mac_ocp_write(tp, 0xF8BE, 0xBE00);
+ r8168_mac_ocp_write(tp, 0xF8C0, 0x0C4C);
+ r8168_mac_ocp_write(tp, 0xF8C2, 0x0C28);
+ r8168_mac_ocp_write(tp, 0xF8C4, 0x0C2C);
+ r8168_mac_ocp_write(tp, 0xF8C6, 0xDC00);
+ r8168_mac_ocp_write(tp, 0xF8C8, 0xC707);
+ r8168_mac_ocp_write(tp, 0xF8CA, 0x1D00);
+ r8168_mac_ocp_write(tp, 0xF8CC, 0x8DE2);
+ r8168_mac_ocp_write(tp, 0xF8CE, 0x48C1);
+ r8168_mac_ocp_write(tp, 0xF8D0, 0xC502);
+ r8168_mac_ocp_write(tp, 0xF8D2, 0xBD00);
+ r8168_mac_ocp_write(tp, 0xF8D4, 0x00AA);
+ r8168_mac_ocp_write(tp, 0xF8D6, 0xE0C0);
+ r8168_mac_ocp_write(tp, 0xF8D8, 0xC502);
+ r8168_mac_ocp_write(tp, 0xF8DA, 0xBD00);
+ r8168_mac_ocp_write(tp, 0xF8DC, 0x0132);
+
+ r8168_mac_ocp_write(tp, 0xFC26, 0x8000);
+
+ r8168_mac_ocp_write(tp, 0xFC2A, 0x0743);
+ r8168_mac_ocp_write(tp, 0xFC2C, 0x0801);
+ r8168_mac_ocp_write(tp, 0xFC2E, 0x0BE9);
+ r8168_mac_ocp_write(tp, 0xFC30, 0x02FD);
+ r8168_mac_ocp_write(tp, 0xFC32, 0x0C25);
+ r8168_mac_ocp_write(tp, 0xFC34, 0x00A9);
+ r8168_mac_ocp_write(tp, 0xFC36, 0x012D);
+
+ rtl_hw_aspm_clkreq_enable(tp, true);
+}
+
+static void rtl_hw_start_8168h_1(struct rtl8169_private *tp)
+{
+ static const struct ephy_info e_info_8168h_1[] = {
+ { 0x1e, 0x0800, 0x0001 },
+ { 0x1d, 0x0000, 0x0800 },
+ { 0x05, 0xffff, 0x2089 },
+ { 0x06, 0xffff, 0x5881 },
+ { 0x04, 0xffff, 0x854a },
+ { 0x01, 0xffff, 0x068b }
+ };
+ int rg_saw_cnt;
+
+ /* disable aspm and clock request before access ephy */
+ rtl_hw_aspm_clkreq_enable(tp, false);
+ rtl_ephy_init(tp, e_info_8168h_1);
+
+ rtl_set_fifo_size(tp, 0x08, 0x10, 0x02, 0x06);
+ rtl8168g_set_pause_thresholds(tp, 0x38, 0x48);
+
+ rtl_set_def_aspm_entry_latency(tp);
+
+ rtl_reset_packet_filter(tp);
+
+ rtl_eri_set_bits(tp, 0xdc, 0x001c);
+
+ rtl_eri_write(tp, 0x5f0, ERIAR_MASK_0011, 0x4f87);
+
+ rtl_disable_rxdvgate(tp);
+
+ rtl_eri_write(tp, 0xc0, ERIAR_MASK_0011, 0x0000);
+ rtl_eri_write(tp, 0xb8, ERIAR_MASK_0011, 0x0000);
+
+ rtl8168_config_eee_mac(tp);
+
+ RTL_W8(tp, DLLPR, RTL_R8(tp, DLLPR) & ~PFM_EN);
+ RTL_W8(tp, MISC_1, RTL_R8(tp, MISC_1) & ~PFM_D3COLD_EN);
+
+ RTL_W8(tp, DLLPR, RTL_R8(tp, DLLPR) & ~TX_10M_PS_EN);
+
+ rtl_eri_clear_bits(tp, 0x1b0, BIT(12));
+
+ rtl_pcie_state_l2l3_disable(tp);
+
+ rg_saw_cnt = phy_read_paged(tp->phydev, 0x0c42, 0x13) & 0x3fff;
+ if (rg_saw_cnt > 0) {
+ u16 sw_cnt_1ms_ini;
+
+ sw_cnt_1ms_ini = 16000000/rg_saw_cnt;
+ sw_cnt_1ms_ini &= 0x0fff;
+ r8168_mac_ocp_modify(tp, 0xd412, 0x0fff, sw_cnt_1ms_ini);
+ }
+
+ r8168_mac_ocp_modify(tp, 0xe056, 0x00f0, 0x0070);
+ r8168_mac_ocp_modify(tp, 0xe052, 0x6000, 0x8008);
+ r8168_mac_ocp_modify(tp, 0xe0d6, 0x01ff, 0x017f);
+ r8168_mac_ocp_modify(tp, 0xd420, 0x0fff, 0x047f);
+
+ r8168_mac_ocp_write(tp, 0xe63e, 0x0001);
+ r8168_mac_ocp_write(tp, 0xe63e, 0x0000);
+ r8168_mac_ocp_write(tp, 0xc094, 0x0000);
+ r8168_mac_ocp_write(tp, 0xc09e, 0x0000);
+
+ rtl_hw_aspm_clkreq_enable(tp, true);
+}
+
+static void rtl_hw_start_8168ep(struct rtl8169_private *tp)
+{
+ rtl8168ep_stop_cmac(tp);
+
+ rtl_set_fifo_size(tp, 0x08, 0x10, 0x02, 0x06);
+ rtl8168g_set_pause_thresholds(tp, 0x2f, 0x5f);
+
+ rtl_set_def_aspm_entry_latency(tp);
+
+ rtl_reset_packet_filter(tp);
+
+ rtl_eri_write(tp, 0x5f0, ERIAR_MASK_0011, 0x4f87);
+
+ rtl_disable_rxdvgate(tp);
+
+ rtl_eri_write(tp, 0xc0, ERIAR_MASK_0011, 0x0000);
+ rtl_eri_write(tp, 0xb8, ERIAR_MASK_0011, 0x0000);
+
+ rtl8168_config_eee_mac(tp);
+
+ rtl_w0w1_eri(tp, 0x2fc, 0x01, 0x06);
+
+ RTL_W8(tp, DLLPR, RTL_R8(tp, DLLPR) & ~TX_10M_PS_EN);
+
+ rtl_pcie_state_l2l3_disable(tp);
+}
+
+static void rtl_hw_start_8168ep_3(struct rtl8169_private *tp)
+{
+ static const struct ephy_info e_info_8168ep_3[] = {
+ { 0x00, 0x0000, 0x0080 },
+ { 0x0d, 0x0100, 0x0200 },
+ { 0x19, 0x8021, 0x0000 },
+ { 0x1e, 0x0000, 0x2000 },
+ };
+
+ /* disable aspm and clock request before access ephy */
+ rtl_hw_aspm_clkreq_enable(tp, false);
+ rtl_ephy_init(tp, e_info_8168ep_3);
+
+ rtl_hw_start_8168ep(tp);
+
+ RTL_W8(tp, DLLPR, RTL_R8(tp, DLLPR) & ~PFM_EN);
+ RTL_W8(tp, MISC_1, RTL_R8(tp, MISC_1) & ~PFM_D3COLD_EN);
+
+ r8168_mac_ocp_modify(tp, 0xd3e2, 0x0fff, 0x0271);
+ r8168_mac_ocp_modify(tp, 0xd3e4, 0x00ff, 0x0000);
+ r8168_mac_ocp_modify(tp, 0xe860, 0x0000, 0x0080);
+
+ rtl_hw_aspm_clkreq_enable(tp, true);
+}
+
+static void rtl_hw_start_8117(struct rtl8169_private *tp)
+{
+ static const struct ephy_info e_info_8117[] = {
+ { 0x19, 0x0040, 0x1100 },
+ { 0x59, 0x0040, 0x1100 },
+ };
+ int rg_saw_cnt;
+
+ rtl8168ep_stop_cmac(tp);
+
+ /* disable aspm and clock request before access ephy */
+ rtl_hw_aspm_clkreq_enable(tp, false);
+ rtl_ephy_init(tp, e_info_8117);
+
+ rtl_set_fifo_size(tp, 0x08, 0x10, 0x02, 0x06);
+ rtl8168g_set_pause_thresholds(tp, 0x2f, 0x5f);
+
+ rtl_set_def_aspm_entry_latency(tp);
+
+ rtl_reset_packet_filter(tp);
+
+ rtl_eri_set_bits(tp, 0xd4, 0x0010);
+
+ rtl_eri_write(tp, 0x5f0, ERIAR_MASK_0011, 0x4f87);
+
+ rtl_disable_rxdvgate(tp);
+
+ rtl_eri_write(tp, 0xc0, ERIAR_MASK_0011, 0x0000);
+ rtl_eri_write(tp, 0xb8, ERIAR_MASK_0011, 0x0000);
+
+ rtl8168_config_eee_mac(tp);
+
+ RTL_W8(tp, DLLPR, RTL_R8(tp, DLLPR) & ~PFM_EN);
+ RTL_W8(tp, MISC_1, RTL_R8(tp, MISC_1) & ~PFM_D3COLD_EN);
+
+ RTL_W8(tp, DLLPR, RTL_R8(tp, DLLPR) & ~TX_10M_PS_EN);
+
+ rtl_eri_clear_bits(tp, 0x1b0, BIT(12));
+
+ rtl_pcie_state_l2l3_disable(tp);
+
+ rg_saw_cnt = phy_read_paged(tp->phydev, 0x0c42, 0x13) & 0x3fff;
+ if (rg_saw_cnt > 0) {
+ u16 sw_cnt_1ms_ini;
+
+ sw_cnt_1ms_ini = (16000000 / rg_saw_cnt) & 0x0fff;
+ r8168_mac_ocp_modify(tp, 0xd412, 0x0fff, sw_cnt_1ms_ini);
+ }
+
+ r8168_mac_ocp_modify(tp, 0xe056, 0x00f0, 0x0070);
+ r8168_mac_ocp_write(tp, 0xea80, 0x0003);
+ r8168_mac_ocp_modify(tp, 0xe052, 0x0000, 0x0009);
+ r8168_mac_ocp_modify(tp, 0xd420, 0x0fff, 0x047f);
+
+ r8168_mac_ocp_write(tp, 0xe63e, 0x0001);
+ r8168_mac_ocp_write(tp, 0xe63e, 0x0000);
+ r8168_mac_ocp_write(tp, 0xc094, 0x0000);
+ r8168_mac_ocp_write(tp, 0xc09e, 0x0000);
+
+ /* firmware is for MAC only */
+ r8169_apply_firmware(tp);
+
+ rtl_hw_aspm_clkreq_enable(tp, true);
+}
+
+static void rtl_hw_start_8102e_1(struct rtl8169_private *tp)
+{
+ static const struct ephy_info e_info_8102e_1[] = {
+ { 0x01, 0, 0x6e65 },
+ { 0x02, 0, 0x091f },
+ { 0x03, 0, 0xc2f9 },
+ { 0x06, 0, 0xafb5 },
+ { 0x07, 0, 0x0e00 },
+ { 0x19, 0, 0xec80 },
+ { 0x01, 0, 0x2e65 },
+ { 0x01, 0, 0x6e65 }
+ };
+ u8 cfg1;
+
+ rtl_set_def_aspm_entry_latency(tp);
+
+ RTL_W8(tp, DBG_REG, FIX_NAK_1);
+
+ RTL_W8(tp, Config1,
+ LEDS1 | LEDS0 | Speed_down | MEMMAP | IOMAP | VPD | PMEnable);
+ RTL_W8(tp, Config3, RTL_R8(tp, Config3) & ~Beacon_en);
+
+ cfg1 = RTL_R8(tp, Config1);
+ if ((cfg1 & LEDS0) && (cfg1 & LEDS1))
+ RTL_W8(tp, Config1, cfg1 & ~LEDS0);
+
+ rtl_ephy_init(tp, e_info_8102e_1);
+}
+
+static void rtl_hw_start_8102e_2(struct rtl8169_private *tp)
+{
+ rtl_set_def_aspm_entry_latency(tp);
+
+ RTL_W8(tp, Config1, MEMMAP | IOMAP | VPD | PMEnable);
+ RTL_W8(tp, Config3, RTL_R8(tp, Config3) & ~Beacon_en);
+}
+
+static void rtl_hw_start_8102e_3(struct rtl8169_private *tp)
+{
+ rtl_hw_start_8102e_2(tp);
+
+ rtl_ephy_write(tp, 0x03, 0xc2f9);
+}
+
+static void rtl_hw_start_8401(struct rtl8169_private *tp)
+{
+ static const struct ephy_info e_info_8401[] = {
+ { 0x01, 0xffff, 0x6fe5 },
+ { 0x03, 0xffff, 0x0599 },
+ { 0x06, 0xffff, 0xaf25 },
+ { 0x07, 0xffff, 0x8e68 },
+ };
+
+ rtl_ephy_init(tp, e_info_8401);
+ RTL_W8(tp, Config3, RTL_R8(tp, Config3) & ~Beacon_en);
+}
+
+static void rtl_hw_start_8105e_1(struct rtl8169_private *tp)
+{
+ static const struct ephy_info e_info_8105e_1[] = {
+ { 0x07, 0, 0x4000 },
+ { 0x19, 0, 0x0200 },
+ { 0x19, 0, 0x0020 },
+ { 0x1e, 0, 0x2000 },
+ { 0x03, 0, 0x0001 },
+ { 0x19, 0, 0x0100 },
+ { 0x19, 0, 0x0004 },
+ { 0x0a, 0, 0x0020 }
+ };
+
+ /* Force LAN exit from ASPM if Rx/Tx are not idle */
+ RTL_W32(tp, FuncEvent, RTL_R32(tp, FuncEvent) | 0x002800);
+
+ /* Disable Early Tally Counter */
+ RTL_W32(tp, FuncEvent, RTL_R32(tp, FuncEvent) & ~0x010000);
+
+ RTL_W8(tp, MCU, RTL_R8(tp, MCU) | EN_NDP | EN_OOB_RESET);
+ RTL_W8(tp, DLLPR, RTL_R8(tp, DLLPR) | PFM_EN);
+
+ rtl_ephy_init(tp, e_info_8105e_1);
+
+ rtl_pcie_state_l2l3_disable(tp);
+}
+
+static void rtl_hw_start_8105e_2(struct rtl8169_private *tp)
+{
+ rtl_hw_start_8105e_1(tp);
+ rtl_ephy_write(tp, 0x1e, rtl_ephy_read(tp, 0x1e) | 0x8000);
+}
+
+static void rtl_hw_start_8402(struct rtl8169_private *tp)
+{
+ static const struct ephy_info e_info_8402[] = {
+ { 0x19, 0xffff, 0xff64 },
+ { 0x1e, 0, 0x4000 }
+ };
+
+ rtl_set_def_aspm_entry_latency(tp);
+
+ /* Force LAN exit from ASPM if Rx/Tx are not idle */
+ RTL_W32(tp, FuncEvent, RTL_R32(tp, FuncEvent) | 0x002800);
+
+ RTL_W8(tp, MCU, RTL_R8(tp, MCU) & ~NOW_IS_OOB);
+
+ rtl_ephy_init(tp, e_info_8402);
+
+ rtl_set_fifo_size(tp, 0x00, 0x00, 0x02, 0x06);
+ rtl_reset_packet_filter(tp);
+ rtl_eri_write(tp, 0xc0, ERIAR_MASK_0011, 0x0000);
+ rtl_eri_write(tp, 0xb8, ERIAR_MASK_0011, 0x0000);
+ rtl_w0w1_eri(tp, 0x0d4, 0x0e00, 0xff00);
+
+ /* disable EEE */
+ rtl_eri_write(tp, 0x1b0, ERIAR_MASK_0011, 0x0000);
+
+ rtl_pcie_state_l2l3_disable(tp);
+}
+
+static void rtl_hw_start_8106(struct rtl8169_private *tp)
+{
+ rtl_hw_aspm_clkreq_enable(tp, false);
+
+ /* Force LAN exit from ASPM if Rx/Tx are not idle */
+ RTL_W32(tp, FuncEvent, RTL_R32(tp, FuncEvent) | 0x002800);
+
+ RTL_W32(tp, MISC, (RTL_R32(tp, MISC) | DISABLE_LAN_EN) & ~EARLY_TALLY_EN);
+ RTL_W8(tp, MCU, RTL_R8(tp, MCU) | EN_NDP | EN_OOB_RESET);
+ RTL_W8(tp, DLLPR, RTL_R8(tp, DLLPR) & ~PFM_EN);
+
+ /* L0 7us, L1 32us - needed to avoid issues with link-up detection */
+ rtl_set_aspm_entry_latency(tp, 0x2f);
+
+ rtl_eri_write(tp, 0x1d0, ERIAR_MASK_0011, 0x0000);
+
+ /* disable EEE */
+ rtl_eri_write(tp, 0x1b0, ERIAR_MASK_0011, 0x0000);
+
+ rtl_pcie_state_l2l3_disable(tp);
+ rtl_hw_aspm_clkreq_enable(tp, true);
+}
+
+DECLARE_RTL_COND(rtl_mac_ocp_e00e_cond)
+{
+ return r8168_mac_ocp_read(tp, 0xe00e) & BIT(13);
+}
+
+static void rtl_hw_start_8125_common(struct rtl8169_private *tp)
+{
+ rtl_pcie_state_l2l3_disable(tp);
+
+ RTL_W16(tp, 0x382, 0x221b);
+ RTL_W8(tp, 0x4500, 0);
+ RTL_W16(tp, 0x4800, 0);
+
+ /* disable UPS */
+ r8168_mac_ocp_modify(tp, 0xd40a, 0x0010, 0x0000);
+
+ RTL_W8(tp, Config1, RTL_R8(tp, Config1) & ~0x10);
+
+ r8168_mac_ocp_write(tp, 0xc140, 0xffff);
+ r8168_mac_ocp_write(tp, 0xc142, 0xffff);
+
+ r8168_mac_ocp_modify(tp, 0xd3e2, 0x0fff, 0x03a9);
+ r8168_mac_ocp_modify(tp, 0xd3e4, 0x00ff, 0x0000);
+ r8168_mac_ocp_modify(tp, 0xe860, 0x0000, 0x0080);
+
+ /* disable new tx descriptor format */
+ r8168_mac_ocp_modify(tp, 0xeb58, 0x0001, 0x0000);
+
+ if (tp->mac_version == RTL_GIGA_MAC_VER_63)
+ r8168_mac_ocp_modify(tp, 0xe614, 0x0700, 0x0200);
+ else
+ r8168_mac_ocp_modify(tp, 0xe614, 0x0700, 0x0400);
+
+ if (tp->mac_version == RTL_GIGA_MAC_VER_63)
+ r8168_mac_ocp_modify(tp, 0xe63e, 0x0c30, 0x0000);
+ else
+ r8168_mac_ocp_modify(tp, 0xe63e, 0x0c30, 0x0020);
+
+ r8168_mac_ocp_modify(tp, 0xc0b4, 0x0000, 0x000c);
+ r8168_mac_ocp_modify(tp, 0xeb6a, 0x00ff, 0x0033);
+ r8168_mac_ocp_modify(tp, 0xeb50, 0x03e0, 0x0040);
+ r8168_mac_ocp_modify(tp, 0xe056, 0x00f0, 0x0030);
+ r8168_mac_ocp_modify(tp, 0xe040, 0x1000, 0x0000);
+ r8168_mac_ocp_modify(tp, 0xea1c, 0x0003, 0x0001);
+ r8168_mac_ocp_modify(tp, 0xe0c0, 0x4f0f, 0x4403);
+ r8168_mac_ocp_modify(tp, 0xe052, 0x0080, 0x0068);
+ r8168_mac_ocp_modify(tp, 0xd430, 0x0fff, 0x047f);
+
+ r8168_mac_ocp_modify(tp, 0xea1c, 0x0004, 0x0000);
+ r8168_mac_ocp_modify(tp, 0xeb54, 0x0000, 0x0001);
+ udelay(1);
+ r8168_mac_ocp_modify(tp, 0xeb54, 0x0001, 0x0000);
+ RTL_W16(tp, 0x1880, RTL_R16(tp, 0x1880) & ~0x0030);
+
+ r8168_mac_ocp_write(tp, 0xe098, 0xc302);
+
+ rtl_loop_wait_low(tp, &rtl_mac_ocp_e00e_cond, 1000, 10);
+
+ if (tp->mac_version == RTL_GIGA_MAC_VER_63)
+ rtl8125b_config_eee_mac(tp);
+ else
+ rtl8125a_config_eee_mac(tp);
+
+ rtl_disable_rxdvgate(tp);
+}
+
+static void rtl_hw_start_8125a_2(struct rtl8169_private *tp)
+{
+ static const struct ephy_info e_info_8125a_2[] = {
+ { 0x04, 0xffff, 0xd000 },
+ { 0x0a, 0xffff, 0x8653 },
+ { 0x23, 0xffff, 0xab66 },
+ { 0x20, 0xffff, 0x9455 },
+ { 0x21, 0xffff, 0x99ff },
+ { 0x29, 0xffff, 0xfe04 },
+
+ { 0x44, 0xffff, 0xd000 },
+ { 0x4a, 0xffff, 0x8653 },
+ { 0x63, 0xffff, 0xab66 },
+ { 0x60, 0xffff, 0x9455 },
+ { 0x61, 0xffff, 0x99ff },
+ { 0x69, 0xffff, 0xfe04 },
+ };
+
+ rtl_set_def_aspm_entry_latency(tp);
+
+ /* disable aspm and clock request before access ephy */
+ rtl_hw_aspm_clkreq_enable(tp, false);
+ rtl_ephy_init(tp, e_info_8125a_2);
+
+ rtl_hw_start_8125_common(tp);
+ rtl_hw_aspm_clkreq_enable(tp, true);
+}
+
+static void rtl_hw_start_8125b(struct rtl8169_private *tp)
+{
+ static const struct ephy_info e_info_8125b[] = {
+ { 0x0b, 0xffff, 0xa908 },
+ { 0x1e, 0xffff, 0x20eb },
+ { 0x4b, 0xffff, 0xa908 },
+ { 0x5e, 0xffff, 0x20eb },
+ { 0x22, 0x0030, 0x0020 },
+ { 0x62, 0x0030, 0x0020 },
+ };
+
+ rtl_set_def_aspm_entry_latency(tp);
+ rtl_hw_aspm_clkreq_enable(tp, false);
+
+ rtl_ephy_init(tp, e_info_8125b);
+ rtl_hw_start_8125_common(tp);
+
+ rtl_hw_aspm_clkreq_enable(tp, true);
+}
+
+static void rtl_hw_config(struct rtl8169_private *tp)
+{
+ static const rtl_generic_fct hw_configs[] = {
+ [RTL_GIGA_MAC_VER_07] = rtl_hw_start_8102e_1,
+ [RTL_GIGA_MAC_VER_08] = rtl_hw_start_8102e_3,
+ [RTL_GIGA_MAC_VER_09] = rtl_hw_start_8102e_2,
+ [RTL_GIGA_MAC_VER_10] = NULL,
+ [RTL_GIGA_MAC_VER_11] = rtl_hw_start_8168b,
+ [RTL_GIGA_MAC_VER_14] = rtl_hw_start_8401,
+ [RTL_GIGA_MAC_VER_17] = rtl_hw_start_8168b,
+ [RTL_GIGA_MAC_VER_18] = rtl_hw_start_8168cp_1,
+ [RTL_GIGA_MAC_VER_19] = rtl_hw_start_8168c_1,
+ [RTL_GIGA_MAC_VER_20] = rtl_hw_start_8168c_2,
+ [RTL_GIGA_MAC_VER_21] = rtl_hw_start_8168c_2,
+ [RTL_GIGA_MAC_VER_22] = rtl_hw_start_8168c_4,
+ [RTL_GIGA_MAC_VER_23] = rtl_hw_start_8168cp_2,
+ [RTL_GIGA_MAC_VER_24] = rtl_hw_start_8168cp_3,
+ [RTL_GIGA_MAC_VER_25] = rtl_hw_start_8168d,
+ [RTL_GIGA_MAC_VER_26] = rtl_hw_start_8168d,
+ [RTL_GIGA_MAC_VER_28] = rtl_hw_start_8168d_4,
+ [RTL_GIGA_MAC_VER_29] = rtl_hw_start_8105e_1,
+ [RTL_GIGA_MAC_VER_30] = rtl_hw_start_8105e_2,
+ [RTL_GIGA_MAC_VER_31] = rtl_hw_start_8168d,
+ [RTL_GIGA_MAC_VER_32] = rtl_hw_start_8168e_1,
+ [RTL_GIGA_MAC_VER_33] = rtl_hw_start_8168e_1,
+ [RTL_GIGA_MAC_VER_34] = rtl_hw_start_8168e_2,
+ [RTL_GIGA_MAC_VER_35] = rtl_hw_start_8168f_1,
+ [RTL_GIGA_MAC_VER_36] = rtl_hw_start_8168f_1,
+ [RTL_GIGA_MAC_VER_37] = rtl_hw_start_8402,
+ [RTL_GIGA_MAC_VER_38] = rtl_hw_start_8411,
+ [RTL_GIGA_MAC_VER_39] = rtl_hw_start_8106,
+ [RTL_GIGA_MAC_VER_40] = rtl_hw_start_8168g_1,
+ [RTL_GIGA_MAC_VER_42] = rtl_hw_start_8168g_2,
+ [RTL_GIGA_MAC_VER_43] = rtl_hw_start_8168g_2,
+ [RTL_GIGA_MAC_VER_44] = rtl_hw_start_8411_2,
+ [RTL_GIGA_MAC_VER_46] = rtl_hw_start_8168h_1,
+ [RTL_GIGA_MAC_VER_48] = rtl_hw_start_8168h_1,
+ [RTL_GIGA_MAC_VER_51] = rtl_hw_start_8168ep_3,
+ [RTL_GIGA_MAC_VER_52] = rtl_hw_start_8117,
+ [RTL_GIGA_MAC_VER_53] = rtl_hw_start_8117,
+ [RTL_GIGA_MAC_VER_61] = rtl_hw_start_8125a_2,
+ [RTL_GIGA_MAC_VER_63] = rtl_hw_start_8125b,
+ };
+
+ if (hw_configs[tp->mac_version])
+ hw_configs[tp->mac_version](tp);
+}
+
+static void rtl_hw_start_8125(struct rtl8169_private *tp)
+{
+ int i;
+
+ /* disable interrupt coalescing */
+ for (i = 0xa00; i < 0xb00; i += 4)
+ RTL_W32(tp, i, 0);
+
+ rtl_hw_config(tp);
+}
+
+static void rtl_hw_start_8168(struct rtl8169_private *tp)
+{
+ if (rtl_is_8168evl_up(tp))
+ RTL_W8(tp, MaxTxPacketSize, EarlySize);
+ else
+ RTL_W8(tp, MaxTxPacketSize, TxPacketMax);
+
+ rtl_hw_config(tp);
+
+ /* disable interrupt coalescing */
+ RTL_W16(tp, IntrMitigate, 0x0000);
+}
+
+static void rtl_hw_start_8169(struct rtl8169_private *tp)
+{
+ RTL_W8(tp, EarlyTxThres, NoEarlyTx);
+
+ tp->cp_cmd |= PCIMulRW;
+
+ if (tp->mac_version == RTL_GIGA_MAC_VER_02 ||
+ tp->mac_version == RTL_GIGA_MAC_VER_03)
+ tp->cp_cmd |= EnAnaPLL;
+
+ RTL_W16(tp, CPlusCmd, tp->cp_cmd);
+
+ rtl8169_set_magic_reg(tp);
+
+ /* disable interrupt coalescing */
+ RTL_W16(tp, IntrMitigate, 0x0000);
+}
+
+static void rtl_hw_start(struct rtl8169_private *tp)
+{
+ rtl_unlock_config_regs(tp);
+
+ RTL_W16(tp, CPlusCmd, tp->cp_cmd);
+
+ if (tp->mac_version <= RTL_GIGA_MAC_VER_06)
+ rtl_hw_start_8169(tp);
+ else if (rtl_is_8125(tp))
+ rtl_hw_start_8125(tp);
+ else
+ rtl_hw_start_8168(tp);
+
+ rtl_enable_exit_l1(tp);
+ rtl_set_rx_max_size(tp);
+ rtl_set_rx_tx_desc_registers(tp);
+ rtl_lock_config_regs(tp);
+
+ rtl_jumbo_config(tp);
+
+ /* Initially a 10 us delay. Turned it into a PCI commit. - FR */
+ rtl_pci_commit(tp);
+
+ RTL_W8(tp, ChipCmd, CmdTxEnb | CmdRxEnb);
+ rtl_init_rxcfg(tp);
+ rtl_set_tx_config_registers(tp);
+ rtl_set_rx_config_features(tp, tp->dev->features);
+ rtl_set_rx_mode(tp->dev);
+ rtl_irq_enable(tp);
+}
+
+static int rtl8169_change_mtu(struct net_device *dev, int new_mtu)
+{
+ struct rtl8169_private *tp = netdev_priv(dev);
+
+ dev->mtu = new_mtu;
+ netdev_update_features(dev);
+ rtl_jumbo_config(tp);
+
+ switch (tp->mac_version) {
+ case RTL_GIGA_MAC_VER_61:
+ case RTL_GIGA_MAC_VER_63:
+ rtl8125_set_eee_txidle_timer(tp);
+ break;
+ default:
+ break;
+ }
+
+ return 0;
+}
+
+static void rtl8169_mark_to_asic(struct RxDesc *desc)
+{
+ u32 eor = le32_to_cpu(desc->opts1) & RingEnd;
+
+ desc->opts2 = 0;
+ /* Force memory writes to complete before releasing descriptor */
+ dma_wmb();
+ WRITE_ONCE(desc->opts1, cpu_to_le32(DescOwn | eor | R8169_RX_BUF_SIZE));
+}
+
+static struct page *rtl8169_alloc_rx_data(struct rtl8169_private *tp,
+ struct RxDesc *desc)
+{
+ struct device *d = tp_to_dev(tp);
+ int node = dev_to_node(d);
+ dma_addr_t mapping;
+ struct page *data;
+
+ data = alloc_pages_node(node, GFP_KERNEL, get_order(R8169_RX_BUF_SIZE));
+ if (!data)
+ return NULL;
+
+ mapping = dma_map_page(d, data, 0, R8169_RX_BUF_SIZE, DMA_FROM_DEVICE);
+ if (unlikely(dma_mapping_error(d, mapping))) {
+ netdev_err(tp->dev, "Failed to map RX DMA!\n");
+ __free_pages(data, get_order(R8169_RX_BUF_SIZE));
+ return NULL;
+ }
+
+ desc->addr = cpu_to_le64(mapping);
+ rtl8169_mark_to_asic(desc);
+
+ return data;
+}
+
+static void rtl8169_rx_clear(struct rtl8169_private *tp)
+{
+ int i;
+
+ for (i = 0; i < NUM_RX_DESC && tp->Rx_databuff[i]; i++) {
+ dma_unmap_page(tp_to_dev(tp),
+ le64_to_cpu(tp->RxDescArray[i].addr),
+ R8169_RX_BUF_SIZE, DMA_FROM_DEVICE);
+ __free_pages(tp->Rx_databuff[i], get_order(R8169_RX_BUF_SIZE));
+ tp->Rx_databuff[i] = NULL;
+ tp->RxDescArray[i].addr = 0;
+ tp->RxDescArray[i].opts1 = 0;
+ }
+}
+
+static int rtl8169_rx_fill(struct rtl8169_private *tp)
+{
+ int i;
+
+ for (i = 0; i < NUM_RX_DESC; i++) {
+ struct page *data;
+
+ data = rtl8169_alloc_rx_data(tp, tp->RxDescArray + i);
+ if (!data) {
+ rtl8169_rx_clear(tp);
+ return -ENOMEM;
+ }
+ tp->Rx_databuff[i] = data;
+ }
+
+ /* mark as last descriptor in the ring */
+ tp->RxDescArray[NUM_RX_DESC - 1].opts1 |= cpu_to_le32(RingEnd);
+
+ return 0;
+}
+
+static int rtl8169_init_ring(struct rtl8169_private *tp)
+{
+ rtl8169_init_ring_indexes(tp);
+
+ memset(tp->tx_skb, 0, sizeof(tp->tx_skb));
+ memset(tp->Rx_databuff, 0, sizeof(tp->Rx_databuff));
+
+ return rtl8169_rx_fill(tp);
+}
+
+static void rtl8169_unmap_tx_skb(struct rtl8169_private *tp, unsigned int entry)
+{
+ struct ring_info *tx_skb = tp->tx_skb + entry;
+ struct TxDesc *desc = tp->TxDescArray + entry;
+
+ dma_unmap_single(tp_to_dev(tp), le64_to_cpu(desc->addr), tx_skb->len,
+ DMA_TO_DEVICE);
+ memset(desc, 0, sizeof(*desc));
+ memset(tx_skb, 0, sizeof(*tx_skb));
+}
+
+static void rtl8169_tx_clear_range(struct rtl8169_private *tp, u32 start,
+ unsigned int n)
+{
+ unsigned int i;
+
+ for (i = 0; i < n; i++) {
+ unsigned int entry = (start + i) % NUM_TX_DESC;
+ struct ring_info *tx_skb = tp->tx_skb + entry;
+ unsigned int len = tx_skb->len;
+
+ if (len) {
+ struct sk_buff *skb = tx_skb->skb;
+
+ rtl8169_unmap_tx_skb(tp, entry);
+ if (skb)
+ dev_consume_skb_any(skb);
+ }
+ }
+}
+
+static void rtl8169_tx_clear(struct rtl8169_private *tp)
+{
+ rtl8169_tx_clear_range(tp, tp->dirty_tx, NUM_TX_DESC);
+ netdev_reset_queue(tp->dev);
+}
+
+static void rtl8169_cleanup(struct rtl8169_private *tp)
+{
+ napi_disable(&tp->napi);
+
+ /* Give a racing hard_start_xmit a few cycles to complete. */
+ synchronize_net();
+
+ /* Disable interrupts */
+ rtl8169_irq_mask_and_ack(tp);
+
+ rtl_rx_close(tp);
+
+ switch (tp->mac_version) {
+ case RTL_GIGA_MAC_VER_28:
+ case RTL_GIGA_MAC_VER_31:
+ rtl_loop_wait_low(tp, &rtl_npq_cond, 20, 2000);
+ break;
+ case RTL_GIGA_MAC_VER_34 ... RTL_GIGA_MAC_VER_38:
+ RTL_W8(tp, ChipCmd, RTL_R8(tp, ChipCmd) | StopReq);
+ rtl_loop_wait_high(tp, &rtl_txcfg_empty_cond, 100, 666);
+ break;
+ case RTL_GIGA_MAC_VER_40 ... RTL_GIGA_MAC_VER_63:
+ rtl_enable_rxdvgate(tp);
+ fsleep(2000);
+ break;
+ default:
+ RTL_W8(tp, ChipCmd, RTL_R8(tp, ChipCmd) | StopReq);
+ fsleep(100);
+ break;
+ }
+
+ rtl_hw_reset(tp);
+
+ rtl8169_tx_clear(tp);
+ rtl8169_init_ring_indexes(tp);
+}
+
+static void rtl_reset_work(struct rtl8169_private *tp)
+{
+ int i;
+
+ netif_stop_queue(tp->dev);
+
+ rtl8169_cleanup(tp);
+
+ for (i = 0; i < NUM_RX_DESC; i++)
+ rtl8169_mark_to_asic(tp->RxDescArray + i);
+
+ napi_enable(&tp->napi);
+ rtl_hw_start(tp);
+}
+
+static void rtl8169_tx_timeout(struct net_device *dev, unsigned int txqueue)
+{
+ struct rtl8169_private *tp = netdev_priv(dev);
+
+ rtl_schedule_task(tp, RTL_FLAG_TASK_TX_TIMEOUT);
+}
+
+static int rtl8169_tx_map(struct rtl8169_private *tp, const u32 *opts, u32 len,
+ void *addr, unsigned int entry, bool desc_own)
+{
+ struct TxDesc *txd = tp->TxDescArray + entry;
+ struct device *d = tp_to_dev(tp);
+ dma_addr_t mapping;
+ u32 opts1;
+ int ret;
+
+ mapping = dma_map_single(d, addr, len, DMA_TO_DEVICE);
+ ret = dma_mapping_error(d, mapping);
+ if (unlikely(ret)) {
+ if (net_ratelimit())
+ netdev_err(tp->dev, "Failed to map TX data!\n");
+ return ret;
+ }
+
+ txd->addr = cpu_to_le64(mapping);
+ txd->opts2 = cpu_to_le32(opts[1]);
+
+ opts1 = opts[0] | len;
+ if (entry == NUM_TX_DESC - 1)
+ opts1 |= RingEnd;
+ if (desc_own)
+ opts1 |= DescOwn;
+ txd->opts1 = cpu_to_le32(opts1);
+
+ tp->tx_skb[entry].len = len;
+
+ return 0;
+}
+
+static int rtl8169_xmit_frags(struct rtl8169_private *tp, struct sk_buff *skb,
+ const u32 *opts, unsigned int entry)
+{
+ struct skb_shared_info *info = skb_shinfo(skb);
+ unsigned int cur_frag;
+
+ for (cur_frag = 0; cur_frag < info->nr_frags; cur_frag++) {
+ const skb_frag_t *frag = info->frags + cur_frag;
+ void *addr = skb_frag_address(frag);
+ u32 len = skb_frag_size(frag);
+
+ entry = (entry + 1) % NUM_TX_DESC;
+
+ if (unlikely(rtl8169_tx_map(tp, opts, len, addr, entry, true)))
+ goto err_out;
+ }
+
+ return 0;
+
+err_out:
+ rtl8169_tx_clear_range(tp, tp->cur_tx + 1, cur_frag);
+ return -EIO;
+}
+
+static bool rtl_skb_is_udp(struct sk_buff *skb)
+{
+ int no = skb_network_offset(skb);
+ struct ipv6hdr *i6h, _i6h;
+ struct iphdr *ih, _ih;
+
+ switch (vlan_get_protocol(skb)) {
+ case htons(ETH_P_IP):
+ ih = skb_header_pointer(skb, no, sizeof(_ih), &_ih);
+ return ih && ih->protocol == IPPROTO_UDP;
+ case htons(ETH_P_IPV6):
+ i6h = skb_header_pointer(skb, no, sizeof(_i6h), &_i6h);
+ return i6h && i6h->nexthdr == IPPROTO_UDP;
+ default:
+ return false;
+ }
+}
+
+#define RTL_MIN_PATCH_LEN 47
+
+/* see rtl8125_get_patch_pad_len() in r8125 vendor driver */
+static unsigned int rtl8125_quirk_udp_padto(struct rtl8169_private *tp,
+ struct sk_buff *skb)
+{
+ unsigned int padto = 0, len = skb->len;
+
+ if (rtl_is_8125(tp) && len < 128 + RTL_MIN_PATCH_LEN &&
+ rtl_skb_is_udp(skb) && skb_transport_header_was_set(skb)) {
+ unsigned int trans_data_len = skb_tail_pointer(skb) -
+ skb_transport_header(skb);
+
+ if (trans_data_len >= offsetof(struct udphdr, len) &&
+ trans_data_len < RTL_MIN_PATCH_LEN) {
+ u16 dest = ntohs(udp_hdr(skb)->dest);
+
+ /* dest is a standard PTP port */
+ if (dest == 319 || dest == 320)
+ padto = len + RTL_MIN_PATCH_LEN - trans_data_len;
+ }
+
+ if (trans_data_len < sizeof(struct udphdr))
+ padto = max_t(unsigned int, padto,
+ len + sizeof(struct udphdr) - trans_data_len);
+ }
+
+ return padto;
+}
+
+static unsigned int rtl_quirk_packet_padto(struct rtl8169_private *tp,
+ struct sk_buff *skb)
+{
+ unsigned int padto;
+
+ padto = rtl8125_quirk_udp_padto(tp, skb);
+
+ switch (tp->mac_version) {
+ case RTL_GIGA_MAC_VER_34:
+ case RTL_GIGA_MAC_VER_61:
+ case RTL_GIGA_MAC_VER_63:
+ padto = max_t(unsigned int, padto, ETH_ZLEN);
+ break;
+ default:
+ break;
+ }
+
+ return padto;
+}
+
+static void rtl8169_tso_csum_v1(struct sk_buff *skb, u32 *opts)
+{
+ u32 mss = skb_shinfo(skb)->gso_size;
+
+ if (mss) {
+ opts[0] |= TD_LSO;
+ opts[0] |= mss << TD0_MSS_SHIFT;
+ } else if (skb->ip_summed == CHECKSUM_PARTIAL) {
+ const struct iphdr *ip = ip_hdr(skb);
+
+ if (ip->protocol == IPPROTO_TCP)
+ opts[0] |= TD0_IP_CS | TD0_TCP_CS;
+ else if (ip->protocol == IPPROTO_UDP)
+ opts[0] |= TD0_IP_CS | TD0_UDP_CS;
+ else
+ WARN_ON_ONCE(1);
+ }
+}
+
+static bool rtl8169_tso_csum_v2(struct rtl8169_private *tp,
+ struct sk_buff *skb, u32 *opts)
+{
+ struct skb_shared_info *shinfo = skb_shinfo(skb);
+ u32 mss = shinfo->gso_size;
+
+ if (mss) {
+ if (shinfo->gso_type & SKB_GSO_TCPV4) {
+ opts[0] |= TD1_GTSENV4;
+ } else if (shinfo->gso_type & SKB_GSO_TCPV6) {
+ if (skb_cow_head(skb, 0))
+ return false;
+
+ tcp_v6_gso_csum_prep(skb);
+ opts[0] |= TD1_GTSENV6;
+ } else {
+ WARN_ON_ONCE(1);
+ }
+
+ opts[0] |= skb_transport_offset(skb) << GTTCPHO_SHIFT;
+ opts[1] |= mss << TD1_MSS_SHIFT;
+ } else if (skb->ip_summed == CHECKSUM_PARTIAL) {
+ u8 ip_protocol;
+
+ switch (vlan_get_protocol(skb)) {
+ case htons(ETH_P_IP):
+ opts[1] |= TD1_IPv4_CS;
+ ip_protocol = ip_hdr(skb)->protocol;
+ break;
+
+ case htons(ETH_P_IPV6):
+ opts[1] |= TD1_IPv6_CS;
+ ip_protocol = ipv6_hdr(skb)->nexthdr;
+ break;
+
+ default:
+ ip_protocol = IPPROTO_RAW;
+ break;
+ }
+
+ if (ip_protocol == IPPROTO_TCP)
+ opts[1] |= TD1_TCP_CS;
+ else if (ip_protocol == IPPROTO_UDP)
+ opts[1] |= TD1_UDP_CS;
+ else
+ WARN_ON_ONCE(1);
+
+ opts[1] |= skb_transport_offset(skb) << TCPHO_SHIFT;
+ } else {
+ unsigned int padto = rtl_quirk_packet_padto(tp, skb);
+
+ /* skb_padto would free the skb on error */
+ return !__skb_put_padto(skb, padto, false);
+ }
+
+ return true;
+}
+
+static bool rtl_tx_slots_avail(struct rtl8169_private *tp)
+{
+ unsigned int slots_avail = READ_ONCE(tp->dirty_tx) + NUM_TX_DESC
+ - READ_ONCE(tp->cur_tx);
+
+ /* A skbuff with nr_frags needs nr_frags+1 entries in the tx queue */
+ return slots_avail > MAX_SKB_FRAGS;
+}
+
+/* Versions RTL8102e and from RTL8168c onwards support csum_v2 */
+static bool rtl_chip_supports_csum_v2(struct rtl8169_private *tp)
+{
+ switch (tp->mac_version) {
+ case RTL_GIGA_MAC_VER_02 ... RTL_GIGA_MAC_VER_06:
+ case RTL_GIGA_MAC_VER_10 ... RTL_GIGA_MAC_VER_17:
+ return false;
+ default:
+ return true;
+ }
+}
+
+static void rtl8169_doorbell(struct rtl8169_private *tp)
+{
+ if (rtl_is_8125(tp))
+ RTL_W16(tp, TxPoll_8125, BIT(0));
+ else
+ RTL_W8(tp, TxPoll, NPQ);
+}
+
+static netdev_tx_t rtl8169_start_xmit(struct sk_buff *skb,
+ struct net_device *dev)
+{
+ unsigned int frags = skb_shinfo(skb)->nr_frags;
+ struct rtl8169_private *tp = netdev_priv(dev);
+ unsigned int entry = tp->cur_tx % NUM_TX_DESC;
+ struct TxDesc *txd_first, *txd_last;
+ bool stop_queue, door_bell;
+ u32 opts[2];
+
+ if (unlikely(!rtl_tx_slots_avail(tp))) {
+ if (net_ratelimit())
+ netdev_err(dev, "BUG! Tx Ring full when queue awake!\n");
+ goto err_stop_0;
+ }
+
+ opts[1] = rtl8169_tx_vlan_tag(skb);
+ opts[0] = 0;
+
+ if (!rtl_chip_supports_csum_v2(tp))
+ rtl8169_tso_csum_v1(skb, opts);
+ else if (!rtl8169_tso_csum_v2(tp, skb, opts))
+ goto err_dma_0;
+
+ if (unlikely(rtl8169_tx_map(tp, opts, skb_headlen(skb), skb->data,
+ entry, false)))
+ goto err_dma_0;
+
+ txd_first = tp->TxDescArray + entry;
+
+ if (frags) {
+ if (rtl8169_xmit_frags(tp, skb, opts, entry))
+ goto err_dma_1;
+ entry = (entry + frags) % NUM_TX_DESC;
+ }
+
+ txd_last = tp->TxDescArray + entry;
+ txd_last->opts1 |= cpu_to_le32(LastFrag);
+ tp->tx_skb[entry].skb = skb;
+
+ skb_tx_timestamp(skb);
+
+ /* Force memory writes to complete before releasing descriptor */
+ dma_wmb();
+
+ door_bell = __netdev_sent_queue(dev, skb->len, netdev_xmit_more());
+
+ txd_first->opts1 |= cpu_to_le32(DescOwn | FirstFrag);
+
+ /* rtl_tx needs to see descriptor changes before updated tp->cur_tx */
+ smp_wmb();
+
+ WRITE_ONCE(tp->cur_tx, tp->cur_tx + frags + 1);
+
+ stop_queue = !rtl_tx_slots_avail(tp);
+ if (unlikely(stop_queue)) {
+ /* Avoid wrongly optimistic queue wake-up: rtl_tx thread must
+ * not miss a ring update when it notices a stopped queue.
+ */
+ smp_wmb();
+ netif_stop_queue(dev);
+ /* Sync with rtl_tx:
+ * - publish queue status and cur_tx ring index (write barrier)
+ * - refresh dirty_tx ring index (read barrier).
+ * May the current thread have a pessimistic view of the ring
+ * status and forget to wake up queue, a racing rtl_tx thread
+ * can't.
+ */
+ smp_mb__after_atomic();
+ if (rtl_tx_slots_avail(tp))
+ netif_start_queue(dev);
+ door_bell = true;
+ }
+
+ if (door_bell)
+ rtl8169_doorbell(tp);
+
+ return NETDEV_TX_OK;
+
+err_dma_1:
+ rtl8169_unmap_tx_skb(tp, entry);
+err_dma_0:
+ dev_kfree_skb_any(skb);
+ dev->stats.tx_dropped++;
+ return NETDEV_TX_OK;
+
+err_stop_0:
+ netif_stop_queue(dev);
+ dev->stats.tx_dropped++;
+ return NETDEV_TX_BUSY;
+}
+
+static unsigned int rtl_last_frag_len(struct sk_buff *skb)
+{
+ struct skb_shared_info *info = skb_shinfo(skb);
+ unsigned int nr_frags = info->nr_frags;
+
+ if (!nr_frags)
+ return UINT_MAX;
+
+ return skb_frag_size(info->frags + nr_frags - 1);
+}
+
+/* Workaround for hw issues with TSO on RTL8168evl */
+static netdev_features_t rtl8168evl_fix_tso(struct sk_buff *skb,
+ netdev_features_t features)
+{
+ /* IPv4 header has options field */
+ if (vlan_get_protocol(skb) == htons(ETH_P_IP) &&
+ ip_hdrlen(skb) > sizeof(struct iphdr))
+ features &= ~NETIF_F_ALL_TSO;
+
+ /* IPv4 TCP header has options field */
+ else if (skb_shinfo(skb)->gso_type & SKB_GSO_TCPV4 &&
+ tcp_hdrlen(skb) > sizeof(struct tcphdr))
+ features &= ~NETIF_F_ALL_TSO;
+
+ else if (rtl_last_frag_len(skb) <= 6)
+ features &= ~NETIF_F_ALL_TSO;
+
+ return features;
+}
+
+static netdev_features_t rtl8169_features_check(struct sk_buff *skb,
+ struct net_device *dev,
+ netdev_features_t features)
+{
+ struct rtl8169_private *tp = netdev_priv(dev);
+
+ if (skb_is_gso(skb)) {
+ if (tp->mac_version == RTL_GIGA_MAC_VER_34)
+ features = rtl8168evl_fix_tso(skb, features);
+
+ if (skb_transport_offset(skb) > GTTCPHO_MAX &&
+ rtl_chip_supports_csum_v2(tp))
+ features &= ~NETIF_F_ALL_TSO;
+ } else if (skb->ip_summed == CHECKSUM_PARTIAL) {
+ /* work around hw bug on some chip versions */
+ if (skb->len < ETH_ZLEN)
+ features &= ~NETIF_F_CSUM_MASK;
+
+ if (rtl_quirk_packet_padto(tp, skb))
+ features &= ~NETIF_F_CSUM_MASK;
+
+ if (skb_transport_offset(skb) > TCPHO_MAX &&
+ rtl_chip_supports_csum_v2(tp))
+ features &= ~NETIF_F_CSUM_MASK;
+ }
+
+ return vlan_features_check(skb, features);
+}
+
+static void rtl8169_pcierr_interrupt(struct net_device *dev)
+{
+ struct rtl8169_private *tp = netdev_priv(dev);
+ struct pci_dev *pdev = tp->pci_dev;
+ int pci_status_errs;
+ u16 pci_cmd;
+
+ pci_read_config_word(pdev, PCI_COMMAND, &pci_cmd);
+
+ pci_status_errs = pci_status_get_and_clear_errors(pdev);
+
+ if (net_ratelimit())
+ netdev_err(dev, "PCI error (cmd = 0x%04x, status_errs = 0x%04x)\n",
+ pci_cmd, pci_status_errs);
+
+ rtl_schedule_task(tp, RTL_FLAG_TASK_RESET_PENDING);
+}
+
+static void rtl_tx(struct net_device *dev, struct rtl8169_private *tp,
+ int budget)
+{
+ unsigned int dirty_tx, bytes_compl = 0, pkts_compl = 0;
+ struct sk_buff *skb;
+
+ dirty_tx = tp->dirty_tx;
+
+ while (READ_ONCE(tp->cur_tx) != dirty_tx) {
+ unsigned int entry = dirty_tx % NUM_TX_DESC;
+ u32 status;
+
+ status = le32_to_cpu(READ_ONCE(tp->TxDescArray[entry].opts1));
+ if (status & DescOwn)
+ break;
+
+ skb = tp->tx_skb[entry].skb;
+ rtl8169_unmap_tx_skb(tp, entry);
+
+ if (skb) {
+ pkts_compl++;
+ bytes_compl += skb->len;
+ napi_consume_skb(skb, budget);
+ }
+ dirty_tx++;
+ }
+
+ if (tp->dirty_tx != dirty_tx) {
+ netdev_completed_queue(dev, pkts_compl, bytes_compl);
+ dev_sw_netstats_tx_add(dev, pkts_compl, bytes_compl);
+
+ /* Sync with rtl8169_start_xmit:
+ * - publish dirty_tx ring index (write barrier)
+ * - refresh cur_tx ring index and queue status (read barrier)
+ * May the current thread miss the stopped queue condition,
+ * a racing xmit thread can only have a right view of the
+ * ring status.
+ */
+ smp_store_mb(tp->dirty_tx, dirty_tx);
+ if (netif_queue_stopped(dev) && rtl_tx_slots_avail(tp))
+ netif_wake_queue(dev);
+ /*
+ * 8168 hack: TxPoll requests are lost when the Tx packets are
+ * too close. Let's kick an extra TxPoll request when a burst
+ * of start_xmit activity is detected (if it is not detected,
+ * it is slow enough). -- FR
+ * If skb is NULL then we come here again once a tx irq is
+ * triggered after the last fragment is marked transmitted.
+ */
+ if (READ_ONCE(tp->cur_tx) != dirty_tx && skb)
+ rtl8169_doorbell(tp);
+ }
+}
+
+static inline int rtl8169_fragmented_frame(u32 status)
+{
+ return (status & (FirstFrag | LastFrag)) != (FirstFrag | LastFrag);
+}
+
+static inline void rtl8169_rx_csum(struct sk_buff *skb, u32 opts1)
+{
+ u32 status = opts1 & (RxProtoMask | RxCSFailMask);
+
+ if (status == RxProtoTCP || status == RxProtoUDP)
+ skb->ip_summed = CHECKSUM_UNNECESSARY;
+ else
+ skb_checksum_none_assert(skb);
+}
+
+static int rtl_rx(struct net_device *dev, struct rtl8169_private *tp, int budget)
+{
+ struct device *d = tp_to_dev(tp);
+ int count;
+
+ for (count = 0; count < budget; count++, tp->cur_rx++) {
+ unsigned int pkt_size, entry = tp->cur_rx % NUM_RX_DESC;
+ struct RxDesc *desc = tp->RxDescArray + entry;
+ struct sk_buff *skb;
+ const void *rx_buf;
+ dma_addr_t addr;
+ u32 status;
+
+ status = le32_to_cpu(READ_ONCE(desc->opts1));
+ if (status & DescOwn)
+ break;
+
+ /* This barrier is needed to keep us from reading
+ * any other fields out of the Rx descriptor until
+ * we know the status of DescOwn
+ */
+ dma_rmb();
+
+ if (unlikely(status & RxRES)) {
+ if (net_ratelimit())
+ netdev_warn(dev, "Rx ERROR. status = %08x\n",
+ status);
+ dev->stats.rx_errors++;
+ if (status & (RxRWT | RxRUNT))
+ dev->stats.rx_length_errors++;
+ if (status & RxCRC)
+ dev->stats.rx_crc_errors++;
+
+ if (!(dev->features & NETIF_F_RXALL))
+ goto release_descriptor;
+ else if (status & RxRWT || !(status & (RxRUNT | RxCRC)))
+ goto release_descriptor;
+ }
+
+ pkt_size = status & GENMASK(13, 0);
+ if (likely(!(dev->features & NETIF_F_RXFCS)))
+ pkt_size -= ETH_FCS_LEN;
+
+ /* The driver does not support incoming fragmented frames.
+ * They are seen as a symptom of over-mtu sized frames.
+ */
+ if (unlikely(rtl8169_fragmented_frame(status))) {
+ dev->stats.rx_dropped++;
+ dev->stats.rx_length_errors++;
+ goto release_descriptor;
+ }
+
+ skb = napi_alloc_skb(&tp->napi, pkt_size);
+ if (unlikely(!skb)) {
+ dev->stats.rx_dropped++;
+ goto release_descriptor;
+ }
+
+ addr = le64_to_cpu(desc->addr);
+ rx_buf = page_address(tp->Rx_databuff[entry]);
+
+ dma_sync_single_for_cpu(d, addr, pkt_size, DMA_FROM_DEVICE);
+ prefetch(rx_buf);
+ skb_copy_to_linear_data(skb, rx_buf, pkt_size);
+ skb->tail += pkt_size;
+ skb->len = pkt_size;
+ dma_sync_single_for_device(d, addr, pkt_size, DMA_FROM_DEVICE);
+
+ rtl8169_rx_csum(skb, status);
+ skb->protocol = eth_type_trans(skb, dev);
+
+ rtl8169_rx_vlan_tag(desc, skb);
+
+ if (skb->pkt_type == PACKET_MULTICAST)
+ dev->stats.multicast++;
+
+ napi_gro_receive(&tp->napi, skb);
+
+ dev_sw_netstats_rx_add(dev, pkt_size);
+release_descriptor:
+ rtl8169_mark_to_asic(desc);
+ }
+
+ return count;
+}
+
+static irqreturn_t rtl8169_interrupt(int irq, void *dev_instance)
+{
+ struct rtl8169_private *tp = dev_instance;
+ u32 status = rtl_get_events(tp);
+
+ if ((status & 0xffff) == 0xffff || !(status & tp->irq_mask))
+ return IRQ_NONE;
+
+ if (unlikely(status & SYSErr)) {
+ rtl8169_pcierr_interrupt(tp->dev);
+ goto out;
+ }
+
+ if (status & LinkChg)
+ phy_mac_interrupt(tp->phydev);
+
+ if (unlikely(status & RxFIFOOver &&
+ tp->mac_version == RTL_GIGA_MAC_VER_11)) {
+ netif_stop_queue(tp->dev);
+ rtl_schedule_task(tp, RTL_FLAG_TASK_RESET_PENDING);
+ }
+
+ if (napi_schedule_prep(&tp->napi)) {
+ rtl_irq_disable(tp);
+ __napi_schedule(&tp->napi);
+ }
+out:
+ rtl_ack_events(tp, status);
+
+ return IRQ_HANDLED;
+}
+
+static void rtl_task(struct work_struct *work)
+{
+ struct rtl8169_private *tp =
+ container_of(work, struct rtl8169_private, wk.work);
+ int ret;
+
+ rtnl_lock();
+
+ if (!netif_running(tp->dev) ||
+ !test_bit(RTL_FLAG_TASK_ENABLED, tp->wk.flags))
+ goto out_unlock;
+
+ if (test_and_clear_bit(RTL_FLAG_TASK_TX_TIMEOUT, tp->wk.flags)) {
+ /* ASPM compatibility issues are a typical reason for tx timeouts */
+ ret = pci_disable_link_state(tp->pci_dev, PCIE_LINK_STATE_L1 |
+ PCIE_LINK_STATE_L0S);
+ if (!ret)
+ netdev_warn_once(tp->dev, "ASPM disabled on Tx timeout\n");
+ goto reset;
+ }
+
+ if (test_and_clear_bit(RTL_FLAG_TASK_RESET_PENDING, tp->wk.flags)) {
+reset:
+ rtl_reset_work(tp);
+ netif_wake_queue(tp->dev);
+ } else if (test_and_clear_bit(RTL_FLAG_TASK_RESET_NO_QUEUE_WAKE, tp->wk.flags)) {
+ rtl_reset_work(tp);
+ }
+out_unlock:
+ rtnl_unlock();
+}
+
+static int rtl8169_poll(struct napi_struct *napi, int budget)
+{
+ struct rtl8169_private *tp = container_of(napi, struct rtl8169_private, napi);
+ struct net_device *dev = tp->dev;
+ int work_done;
+
+ rtl_tx(dev, tp, budget);
+
+ work_done = rtl_rx(dev, tp, budget);
+
+ if (work_done < budget && napi_complete_done(napi, work_done))
+ rtl_irq_enable(tp);
+
+ return work_done;
+}
+
+static void r8169_phylink_handler(struct net_device *ndev)
+{
+ struct rtl8169_private *tp = netdev_priv(ndev);
+ struct device *d = tp_to_dev(tp);
+
+ if (netif_carrier_ok(ndev)) {
+ rtl_link_chg_patch(tp);
+ pm_request_resume(d);
+ netif_wake_queue(tp->dev);
+ } else {
+ /* In few cases rx is broken after link-down otherwise */
+ if (rtl_is_8125(tp))
+ rtl_schedule_task(tp, RTL_FLAG_TASK_RESET_NO_QUEUE_WAKE);
+ pm_runtime_idle(d);
+ }
+
+ phy_print_status(tp->phydev);
+}
+
+static int r8169_phy_connect(struct rtl8169_private *tp)
+{
+ struct phy_device *phydev = tp->phydev;
+ phy_interface_t phy_mode;
+ int ret;
+
+ phy_mode = tp->supports_gmii ? PHY_INTERFACE_MODE_GMII :
+ PHY_INTERFACE_MODE_MII;
+
+ ret = phy_connect_direct(tp->dev, phydev, r8169_phylink_handler,
+ phy_mode);
+ if (ret)
+ return ret;
+
+ if (!tp->supports_gmii)
+ phy_set_max_speed(phydev, SPEED_100);
+
+ phy_attached_info(phydev);
+
+ return 0;
+}
+
+static void rtl8169_down(struct rtl8169_private *tp)
+{
+ /* Clear all task flags */
+ bitmap_zero(tp->wk.flags, RTL_FLAG_MAX);
+
+ phy_stop(tp->phydev);
+
+ rtl8169_update_counters(tp);
+
+ pci_clear_master(tp->pci_dev);
+ rtl_pci_commit(tp);
+
+ rtl8169_cleanup(tp);
+ rtl_disable_exit_l1(tp);
+ rtl_prepare_power_down(tp);
+
+ if (tp->dash_type != RTL_DASH_NONE)
+ rtl8168_driver_stop(tp);
+}
+
+static void rtl8169_up(struct rtl8169_private *tp)
+{
+ if (tp->dash_type != RTL_DASH_NONE)
+ rtl8168_driver_start(tp);
+
+ pci_set_master(tp->pci_dev);
+ phy_init_hw(tp->phydev);
+ phy_resume(tp->phydev);
+ rtl8169_init_phy(tp);
+ napi_enable(&tp->napi);
+ set_bit(RTL_FLAG_TASK_ENABLED, tp->wk.flags);
+ rtl_reset_work(tp);
+
+ phy_start(tp->phydev);
+}
+
+static int rtl8169_close(struct net_device *dev)
+{
+ struct rtl8169_private *tp = netdev_priv(dev);
+ struct pci_dev *pdev = tp->pci_dev;
+
+ pm_runtime_get_sync(&pdev->dev);
+
+ netif_stop_queue(dev);
+ rtl8169_down(tp);
+ rtl8169_rx_clear(tp);
+
+ cancel_work(&tp->wk.work);
+
+ free_irq(tp->irq, tp);
+
+ phy_disconnect(tp->phydev);
+
+ dma_free_coherent(&pdev->dev, R8169_RX_RING_BYTES, tp->RxDescArray,
+ tp->RxPhyAddr);
+ dma_free_coherent(&pdev->dev, R8169_TX_RING_BYTES, tp->TxDescArray,
+ tp->TxPhyAddr);
+ tp->TxDescArray = NULL;
+ tp->RxDescArray = NULL;
+
+ pm_runtime_put_sync(&pdev->dev);
+
+ return 0;
+}
+
+#ifdef CONFIG_NET_POLL_CONTROLLER
+static void rtl8169_netpoll(struct net_device *dev)
+{
+ struct rtl8169_private *tp = netdev_priv(dev);
+
+ rtl8169_interrupt(tp->irq, tp);
+}
+#endif
+
+static int rtl_open(struct net_device *dev)
+{
+ struct rtl8169_private *tp = netdev_priv(dev);
+ struct pci_dev *pdev = tp->pci_dev;
+ unsigned long irqflags;
+ int retval = -ENOMEM;
+
+ pm_runtime_get_sync(&pdev->dev);
+
+ /*
+ * Rx and Tx descriptors needs 256 bytes alignment.
+ * dma_alloc_coherent provides more.
+ */
+ tp->TxDescArray = dma_alloc_coherent(&pdev->dev, R8169_TX_RING_BYTES,
+ &tp->TxPhyAddr, GFP_KERNEL);
+ if (!tp->TxDescArray)
+ goto out;
+
+ tp->RxDescArray = dma_alloc_coherent(&pdev->dev, R8169_RX_RING_BYTES,
+ &tp->RxPhyAddr, GFP_KERNEL);
+ if (!tp->RxDescArray)
+ goto err_free_tx_0;
+
+ retval = rtl8169_init_ring(tp);
+ if (retval < 0)
+ goto err_free_rx_1;
+
+ rtl_request_firmware(tp);
+
+ irqflags = pci_dev_msi_enabled(pdev) ? IRQF_NO_THREAD : IRQF_SHARED;
+ retval = request_irq(tp->irq, rtl8169_interrupt, irqflags, dev->name, tp);
+ if (retval < 0)
+ goto err_release_fw_2;
+
+ retval = r8169_phy_connect(tp);
+ if (retval)
+ goto err_free_irq;
+
+ rtl8169_up(tp);
+ rtl8169_init_counter_offsets(tp);
+ netif_start_queue(dev);
+out:
+ pm_runtime_put_sync(&pdev->dev);
+
+ return retval;
+
+err_free_irq:
+ free_irq(tp->irq, tp);
+err_release_fw_2:
+ rtl_release_firmware(tp);
+ rtl8169_rx_clear(tp);
+err_free_rx_1:
+ dma_free_coherent(&pdev->dev, R8169_RX_RING_BYTES, tp->RxDescArray,
+ tp->RxPhyAddr);
+ tp->RxDescArray = NULL;
+err_free_tx_0:
+ dma_free_coherent(&pdev->dev, R8169_TX_RING_BYTES, tp->TxDescArray,
+ tp->TxPhyAddr);
+ tp->TxDescArray = NULL;
+ goto out;
+}
+
+static void
+rtl8169_get_stats64(struct net_device *dev, struct rtnl_link_stats64 *stats)
+{
+ struct rtl8169_private *tp = netdev_priv(dev);
+ struct pci_dev *pdev = tp->pci_dev;
+ struct rtl8169_counters *counters = tp->counters;
+
+ pm_runtime_get_noresume(&pdev->dev);
+
+ netdev_stats_to_stats64(stats, &dev->stats);
+ dev_fetch_sw_netstats(stats, dev->tstats);
+
+ /*
+ * Fetch additional counter values missing in stats collected by driver
+ * from tally counters.
+ */
+ if (pm_runtime_active(&pdev->dev))
+ rtl8169_update_counters(tp);
+
+ /*
+ * Subtract values fetched during initalization.
+ * See rtl8169_init_counter_offsets for a description why we do that.
+ */
+ stats->tx_errors = le64_to_cpu(counters->tx_errors) -
+ le64_to_cpu(tp->tc_offset.tx_errors);
+ stats->collisions = le32_to_cpu(counters->tx_multi_collision) -
+ le32_to_cpu(tp->tc_offset.tx_multi_collision);
+ stats->tx_aborted_errors = le16_to_cpu(counters->tx_aborted) -
+ le16_to_cpu(tp->tc_offset.tx_aborted);
+ stats->rx_missed_errors = le16_to_cpu(counters->rx_missed) -
+ le16_to_cpu(tp->tc_offset.rx_missed);
+
+ pm_runtime_put_noidle(&pdev->dev);
+}
+
+static void rtl8169_net_suspend(struct rtl8169_private *tp)
+{
+ netif_device_detach(tp->dev);
+
+ if (netif_running(tp->dev))
+ rtl8169_down(tp);
+}
+
+static int rtl8169_runtime_resume(struct device *dev)
+{
+ struct rtl8169_private *tp = dev_get_drvdata(dev);
+
+ rtl_rar_set(tp, tp->dev->dev_addr);
+ __rtl8169_set_wol(tp, tp->saved_wolopts);
+
+ if (tp->TxDescArray)
+ rtl8169_up(tp);
+
+ netif_device_attach(tp->dev);
+
+ return 0;
+}
+
+static int rtl8169_suspend(struct device *device)
+{
+ struct rtl8169_private *tp = dev_get_drvdata(device);
+
+ rtnl_lock();
+ rtl8169_net_suspend(tp);
+ if (!device_may_wakeup(tp_to_dev(tp)))
+ clk_disable_unprepare(tp->clk);
+ rtnl_unlock();
+
+ return 0;
+}
+
+static int rtl8169_resume(struct device *device)
+{
+ struct rtl8169_private *tp = dev_get_drvdata(device);
+
+ if (!device_may_wakeup(tp_to_dev(tp)))
+ clk_prepare_enable(tp->clk);
+
+ /* Reportedly at least Asus X453MA truncates packets otherwise */
+ if (tp->mac_version == RTL_GIGA_MAC_VER_37)
+ rtl_init_rxcfg(tp);
+
+ return rtl8169_runtime_resume(device);
+}
+
+static int rtl8169_runtime_suspend(struct device *device)
+{
+ struct rtl8169_private *tp = dev_get_drvdata(device);
+
+ if (!tp->TxDescArray) {
+ netif_device_detach(tp->dev);
+ return 0;
+ }
+
+ rtnl_lock();
+ __rtl8169_set_wol(tp, WAKE_PHY);
+ rtl8169_net_suspend(tp);
+ rtnl_unlock();
+
+ return 0;
+}
+
+static int rtl8169_runtime_idle(struct device *device)
+{
+ struct rtl8169_private *tp = dev_get_drvdata(device);
+
+ if (tp->dash_enabled)
+ return -EBUSY;
+
+ if (!netif_running(tp->dev) || !netif_carrier_ok(tp->dev))
+ pm_schedule_suspend(device, 10000);
+
+ return -EBUSY;
+}
+
+static const struct dev_pm_ops rtl8169_pm_ops = {
+ SYSTEM_SLEEP_PM_OPS(rtl8169_suspend, rtl8169_resume)
+ RUNTIME_PM_OPS(rtl8169_runtime_suspend, rtl8169_runtime_resume,
+ rtl8169_runtime_idle)
+};
+
+static void rtl_shutdown(struct pci_dev *pdev)
+{
+ struct rtl8169_private *tp = pci_get_drvdata(pdev);
+
+ rtnl_lock();
+ rtl8169_net_suspend(tp);
+ rtnl_unlock();
+
+ /* Restore original MAC address */
+ rtl_rar_set(tp, tp->dev->perm_addr);
+
+ if (system_state == SYSTEM_POWER_OFF && !tp->dash_enabled) {
+ pci_wake_from_d3(pdev, tp->saved_wolopts);
+ pci_set_power_state(pdev, PCI_D3hot);
+ }
+}
+
+static void rtl_remove_one(struct pci_dev *pdev)
+{
+ struct rtl8169_private *tp = pci_get_drvdata(pdev);
+
+ if (pci_dev_run_wake(pdev))
+ pm_runtime_get_noresume(&pdev->dev);
+
+ cancel_work_sync(&tp->wk.work);
+
+ unregister_netdev(tp->dev);
+
+ if (tp->dash_type != RTL_DASH_NONE)
+ rtl8168_driver_stop(tp);
+
+ rtl_release_firmware(tp);
+
+ /* restore original MAC address */
+ rtl_rar_set(tp, tp->dev->perm_addr);
+}
+
+static const struct net_device_ops rtl_netdev_ops = {
+ .ndo_open = rtl_open,
+ .ndo_stop = rtl8169_close,
+ .ndo_get_stats64 = rtl8169_get_stats64,
+ .ndo_start_xmit = rtl8169_start_xmit,
+ .ndo_features_check = rtl8169_features_check,
+ .ndo_tx_timeout = rtl8169_tx_timeout,
+ .ndo_validate_addr = eth_validate_addr,
+ .ndo_change_mtu = rtl8169_change_mtu,
+ .ndo_fix_features = rtl8169_fix_features,
+ .ndo_set_features = rtl8169_set_features,
+ .ndo_set_mac_address = rtl_set_mac_address,
+ .ndo_eth_ioctl = phy_do_ioctl_running,
+ .ndo_set_rx_mode = rtl_set_rx_mode,
+#ifdef CONFIG_NET_POLL_CONTROLLER
+ .ndo_poll_controller = rtl8169_netpoll,
+#endif
+
+};
+
+static void rtl_set_irq_mask(struct rtl8169_private *tp)
+{
+ tp->irq_mask = RxOK | RxErr | TxOK | TxErr | LinkChg;
+
+ if (tp->mac_version <= RTL_GIGA_MAC_VER_06)
+ tp->irq_mask |= SYSErr | RxOverflow | RxFIFOOver;
+ else if (tp->mac_version == RTL_GIGA_MAC_VER_11)
+ /* special workaround needed */
+ tp->irq_mask |= RxFIFOOver;
+ else
+ tp->irq_mask |= RxOverflow;
+}
+
+static int rtl_alloc_irq(struct rtl8169_private *tp)
+{
+ unsigned int flags;
+
+ switch (tp->mac_version) {
+ case RTL_GIGA_MAC_VER_02 ... RTL_GIGA_MAC_VER_06:
+ rtl_unlock_config_regs(tp);
+ RTL_W8(tp, Config2, RTL_R8(tp, Config2) & ~MSIEnable);
+ rtl_lock_config_regs(tp);
+ fallthrough;
+ case RTL_GIGA_MAC_VER_07 ... RTL_GIGA_MAC_VER_17:
+ flags = PCI_IRQ_LEGACY;
+ break;
+ default:
+ flags = PCI_IRQ_ALL_TYPES;
+ break;
+ }
+
+ return pci_alloc_irq_vectors(tp->pci_dev, 1, 1, flags);
+}
+
+static void rtl_read_mac_address(struct rtl8169_private *tp,
+ u8 mac_addr[ETH_ALEN])
+{
+ /* Get MAC address */
+ if (rtl_is_8168evl_up(tp) && tp->mac_version != RTL_GIGA_MAC_VER_34) {
+ u32 value;
+
+ value = rtl_eri_read(tp, 0xe0);
+ put_unaligned_le32(value, mac_addr);
+ value = rtl_eri_read(tp, 0xe4);
+ put_unaligned_le16(value, mac_addr + 4);
+ } else if (rtl_is_8125(tp)) {
+ rtl_read_mac_from_reg(tp, mac_addr, MAC0_BKP);
+ }
+}
+
+DECLARE_RTL_COND(rtl_link_list_ready_cond)
+{
+ return RTL_R8(tp, MCU) & LINK_LIST_RDY;
+}
+
+static void r8168g_wait_ll_share_fifo_ready(struct rtl8169_private *tp)
+{
+ rtl_loop_wait_high(tp, &rtl_link_list_ready_cond, 100, 42);
+}
+
+static int r8169_mdio_read_reg(struct mii_bus *mii_bus, int phyaddr, int phyreg)
+{
+ struct rtl8169_private *tp = mii_bus->priv;
+
+ if (phyaddr > 0)
+ return -ENODEV;
+
+ return rtl_readphy(tp, phyreg);
+}
+
+static int r8169_mdio_write_reg(struct mii_bus *mii_bus, int phyaddr,
+ int phyreg, u16 val)
+{
+ struct rtl8169_private *tp = mii_bus->priv;
+
+ if (phyaddr > 0)
+ return -ENODEV;
+
+ rtl_writephy(tp, phyreg, val);
+
+ return 0;
+}
+
+static int r8169_mdio_register(struct rtl8169_private *tp)
+{
+ struct pci_dev *pdev = tp->pci_dev;
+ struct mii_bus *new_bus;
+ int ret;
+
+ new_bus = devm_mdiobus_alloc(&pdev->dev);
+ if (!new_bus)
+ return -ENOMEM;
+
+ new_bus->name = "r8169";
+ new_bus->priv = tp;
+ new_bus->parent = &pdev->dev;
+ new_bus->irq[0] = PHY_MAC_INTERRUPT;
+ snprintf(new_bus->id, MII_BUS_ID_SIZE, "r8169-%x-%x",
+ pci_domain_nr(pdev->bus), pci_dev_id(pdev));
+
+ new_bus->read = r8169_mdio_read_reg;
+ new_bus->write = r8169_mdio_write_reg;
+
+ ret = devm_mdiobus_register(&pdev->dev, new_bus);
+ if (ret)
+ return ret;
+
+ tp->phydev = mdiobus_get_phy(new_bus, 0);
+ if (!tp->phydev) {
+ return -ENODEV;
+ } else if (!tp->phydev->drv) {
+ /* Most chip versions fail with the genphy driver.
+ * Therefore ensure that the dedicated PHY driver is loaded.
+ */
+ dev_err(&pdev->dev, "no dedicated PHY driver found for PHY ID 0x%08x, maybe realtek.ko needs to be added to initramfs?\n",
+ tp->phydev->phy_id);
+ return -EUNATCH;
+ }
+
+ tp->phydev->mac_managed_pm = 1;
+
+ phy_support_asym_pause(tp->phydev);
+
+ /* PHY will be woken up in rtl_open() */
+ phy_suspend(tp->phydev);
+
+ return 0;
+}
+
+static void rtl_hw_init_8168g(struct rtl8169_private *tp)
+{
+ rtl_enable_rxdvgate(tp);
+
+ RTL_W8(tp, ChipCmd, RTL_R8(tp, ChipCmd) & ~(CmdTxEnb | CmdRxEnb));
+ msleep(1);
+ RTL_W8(tp, MCU, RTL_R8(tp, MCU) & ~NOW_IS_OOB);
+
+ r8168_mac_ocp_modify(tp, 0xe8de, BIT(14), 0);
+ r8168g_wait_ll_share_fifo_ready(tp);
+
+ r8168_mac_ocp_modify(tp, 0xe8de, 0, BIT(15));
+ r8168g_wait_ll_share_fifo_ready(tp);
+}
+
+static void rtl_hw_init_8125(struct rtl8169_private *tp)
+{
+ rtl_enable_rxdvgate(tp);
+
+ RTL_W8(tp, ChipCmd, RTL_R8(tp, ChipCmd) & ~(CmdTxEnb | CmdRxEnb));
+ msleep(1);
+ RTL_W8(tp, MCU, RTL_R8(tp, MCU) & ~NOW_IS_OOB);
+
+ r8168_mac_ocp_modify(tp, 0xe8de, BIT(14), 0);
+ r8168g_wait_ll_share_fifo_ready(tp);
+
+ r8168_mac_ocp_write(tp, 0xc0aa, 0x07d0);
+ r8168_mac_ocp_write(tp, 0xc0a6, 0x0150);
+ r8168_mac_ocp_write(tp, 0xc01e, 0x5555);
+ r8168g_wait_ll_share_fifo_ready(tp);
+}
+
+static void rtl_hw_initialize(struct rtl8169_private *tp)
+{
+ switch (tp->mac_version) {
+ case RTL_GIGA_MAC_VER_51 ... RTL_GIGA_MAC_VER_53:
+ rtl8168ep_stop_cmac(tp);
+ fallthrough;
+ case RTL_GIGA_MAC_VER_40 ... RTL_GIGA_MAC_VER_48:
+ rtl_hw_init_8168g(tp);
+ break;
+ case RTL_GIGA_MAC_VER_61 ... RTL_GIGA_MAC_VER_63:
+ rtl_hw_init_8125(tp);
+ break;
+ default:
+ break;
+ }
+}
+
+static int rtl_jumbo_max(struct rtl8169_private *tp)
+{
+ /* Non-GBit versions don't support jumbo frames */
+ if (!tp->supports_gmii)
+ return 0;
+
+ switch (tp->mac_version) {
+ /* RTL8169 */
+ case RTL_GIGA_MAC_VER_02 ... RTL_GIGA_MAC_VER_06:
+ return JUMBO_7K;
+ /* RTL8168b */
+ case RTL_GIGA_MAC_VER_11:
+ case RTL_GIGA_MAC_VER_17:
+ return JUMBO_4K;
+ /* RTL8168c */
+ case RTL_GIGA_MAC_VER_18 ... RTL_GIGA_MAC_VER_24:
+ return JUMBO_6K;
+ default:
+ return JUMBO_9K;
+ }
+}
+
+static void rtl_init_mac_address(struct rtl8169_private *tp)
+{
+ u8 mac_addr[ETH_ALEN] __aligned(2) = {};
+ struct net_device *dev = tp->dev;
+ int rc;
+
+ rc = eth_platform_get_mac_address(tp_to_dev(tp), mac_addr);
+ if (!rc)
+ goto done;
+
+ rtl_read_mac_address(tp, mac_addr);
+ if (is_valid_ether_addr(mac_addr))
+ goto done;
+
+ rtl_read_mac_from_reg(tp, mac_addr, MAC0);
+ if (is_valid_ether_addr(mac_addr))
+ goto done;
+
+ eth_random_addr(mac_addr);
+ dev->addr_assign_type = NET_ADDR_RANDOM;
+ dev_warn(tp_to_dev(tp), "can't read MAC address, setting random one\n");
+done:
+ eth_hw_addr_set(dev, mac_addr);
+ rtl_rar_set(tp, mac_addr);
+}
+
+/* register is set if system vendor successfully tested ASPM 1.2 */
+static bool rtl_aspm_is_safe(struct rtl8169_private *tp)
+{
+ if (tp->mac_version >= RTL_GIGA_MAC_VER_61 &&
+ r8168_mac_ocp_read(tp, 0xc0b2) & 0xf)
+ return true;
+
+ return false;
+}
+
+static int rtl_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
+{
+ struct rtl8169_private *tp;
+ int jumbo_max, region, rc;
+ enum mac_version chipset;
+ struct net_device *dev;
+ u16 xid;
+
+ dev = devm_alloc_etherdev(&pdev->dev, sizeof (*tp));
+ if (!dev)
+ return -ENOMEM;
+
+ SET_NETDEV_DEV(dev, &pdev->dev);
+ dev->netdev_ops = &rtl_netdev_ops;
+ tp = netdev_priv(dev);
+ tp->dev = dev;
+ tp->pci_dev = pdev;
+ tp->supports_gmii = ent->driver_data == RTL_CFG_NO_GBIT ? 0 : 1;
+ tp->eee_adv = -1;
+ tp->ocp_base = OCP_STD_PHY_BASE;
+
+ dev->tstats = devm_netdev_alloc_pcpu_stats(&pdev->dev,
+ struct pcpu_sw_netstats);
+ if (!dev->tstats)
+ return -ENOMEM;
+
+ /* Get the *optional* external "ether_clk" used on some boards */
+ tp->clk = devm_clk_get_optional_enabled(&pdev->dev, "ether_clk");
+ if (IS_ERR(tp->clk))
+ return dev_err_probe(&pdev->dev, PTR_ERR(tp->clk), "failed to get ether_clk\n");
+
+ /* enable device (incl. PCI PM wakeup and hotplug setup) */
+ rc = pcim_enable_device(pdev);
+ if (rc < 0) {
+ dev_err(&pdev->dev, "enable failure\n");
+ return rc;
+ }
+
+ if (pcim_set_mwi(pdev) < 0)
+ dev_info(&pdev->dev, "Mem-Wr-Inval unavailable\n");
+
+ /* use first MMIO region */
+ region = ffs(pci_select_bars(pdev, IORESOURCE_MEM)) - 1;
+ if (region < 0) {
+ dev_err(&pdev->dev, "no MMIO resource found\n");
+ return -ENODEV;
+ }
+
+ rc = pcim_iomap_regions(pdev, BIT(region), KBUILD_MODNAME);
+ if (rc < 0) {
+ dev_err(&pdev->dev, "cannot remap MMIO, aborting\n");
+ return rc;
+ }
+
+ tp->mmio_addr = pcim_iomap_table(pdev)[region];
+
+ xid = (RTL_R32(tp, TxConfig) >> 20) & 0xfcf;
+
+ /* Identify chip attached to board */
+ chipset = rtl8169_get_mac_version(xid, tp->supports_gmii);
+ if (chipset == RTL_GIGA_MAC_NONE) {
+ dev_err(&pdev->dev, "unknown chip XID %03x, contact r8169 maintainers (see MAINTAINERS file)\n", xid);
+ return -ENODEV;
+ }
+
+ tp->mac_version = chipset;
+
+ /* Disable ASPM L1 as that cause random device stop working
+ * problems as well as full system hangs for some PCIe devices users.
+ */
+ if (rtl_aspm_is_safe(tp))
+ rc = 0;
+ else
+ rc = pci_disable_link_state(pdev, PCIE_LINK_STATE_L1);
+ tp->aspm_manageable = !rc;
+
+ tp->dash_type = rtl_get_dash_type(tp);
+ tp->dash_enabled = rtl_dash_is_enabled(tp);
+
+ tp->cp_cmd = RTL_R16(tp, CPlusCmd) & CPCMD_MASK;
+
+ if (sizeof(dma_addr_t) > 4 && tp->mac_version >= RTL_GIGA_MAC_VER_18 &&
+ !dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64)))
+ dev->features |= NETIF_F_HIGHDMA;
+
+ rtl_init_rxcfg(tp);
+
+ rtl8169_irq_mask_and_ack(tp);
+
+ rtl_hw_initialize(tp);
+
+ rtl_hw_reset(tp);
+
+ rc = rtl_alloc_irq(tp);
+ if (rc < 0) {
+ dev_err(&pdev->dev, "Can't allocate interrupt\n");
+ return rc;
+ }
+ tp->irq = pci_irq_vector(pdev, 0);
+
+ INIT_WORK(&tp->wk.work, rtl_task);
+
+ rtl_init_mac_address(tp);
+
+ dev->ethtool_ops = &rtl8169_ethtool_ops;
+
+ netif_napi_add(dev, &tp->napi, rtl8169_poll);
+
+ dev->hw_features = NETIF_F_IP_CSUM | NETIF_F_RXCSUM |
+ NETIF_F_HW_VLAN_CTAG_TX | NETIF_F_HW_VLAN_CTAG_RX;
+ dev->vlan_features = NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_TSO;
+ dev->priv_flags |= IFF_LIVE_ADDR_CHANGE;
+
+ /*
+ * Pretend we are using VLANs; This bypasses a nasty bug where
+ * Interrupts stop flowing on high load on 8110SCd controllers.
+ */
+ if (tp->mac_version == RTL_GIGA_MAC_VER_05)
+ /* Disallow toggling */
+ dev->hw_features &= ~NETIF_F_HW_VLAN_CTAG_RX;
+
+ if (rtl_chip_supports_csum_v2(tp))
+ dev->hw_features |= NETIF_F_IPV6_CSUM;
+
+ dev->features |= dev->hw_features;
+
+ /* There has been a number of reports that using SG/TSO results in
+ * tx timeouts. However for a lot of people SG/TSO works fine.
+ * Therefore disable both features by default, but allow users to
+ * enable them. Use at own risk!
+ */
+ if (rtl_chip_supports_csum_v2(tp)) {
+ dev->hw_features |= NETIF_F_SG | NETIF_F_TSO | NETIF_F_TSO6;
+ netif_set_tso_max_size(dev, RTL_GSO_MAX_SIZE_V2);
+ netif_set_tso_max_segs(dev, RTL_GSO_MAX_SEGS_V2);
+ } else {
+ dev->hw_features |= NETIF_F_SG | NETIF_F_TSO;
+ netif_set_tso_max_size(dev, RTL_GSO_MAX_SIZE_V1);
+ netif_set_tso_max_segs(dev, RTL_GSO_MAX_SEGS_V1);
+ }
+
+ dev->hw_features |= NETIF_F_RXALL;
+ dev->hw_features |= NETIF_F_RXFCS;
+
+ /* configure chip for default features */
+ rtl8169_set_features(dev, dev->features);
+
+ if (!tp->dash_enabled) {
+ rtl_set_d3_pll_down(tp, true);
+ } else {
+ rtl_set_d3_pll_down(tp, false);
+ dev->wol_enabled = 1;
+ }
+
+ jumbo_max = rtl_jumbo_max(tp);
+ if (jumbo_max)
+ dev->max_mtu = jumbo_max;
+
+ rtl_set_irq_mask(tp);
+
+ tp->fw_name = rtl_chip_infos[chipset].fw_name;
+
+ tp->counters = dmam_alloc_coherent (&pdev->dev, sizeof(*tp->counters),
+ &tp->counters_phys_addr,
+ GFP_KERNEL);
+ if (!tp->counters)
+ return -ENOMEM;
+
+ pci_set_drvdata(pdev, tp);
+
+ rc = r8169_mdio_register(tp);
+ if (rc)
+ return rc;
+
+ rc = register_netdev(dev);
+ if (rc)
+ return rc;
+
+ netdev_info(dev, "%s, %pM, XID %03x, IRQ %d\n",
+ rtl_chip_infos[chipset].name, dev->dev_addr, xid, tp->irq);
+
+ if (jumbo_max)
+ netdev_info(dev, "jumbo features [frames: %d bytes, tx checksumming: %s]\n",
+ jumbo_max, tp->mac_version <= RTL_GIGA_MAC_VER_06 ?
+ "ok" : "ko");
+
+ if (tp->dash_type != RTL_DASH_NONE) {
+ netdev_info(dev, "DASH %s\n",
+ tp->dash_enabled ? "enabled" : "disabled");
+ rtl8168_driver_start(tp);
+ }
+
+ if (pci_dev_run_wake(pdev))
+ pm_runtime_put_sync(&pdev->dev);
+
+ return 0;
+}
+
+static struct pci_driver rtl8169_pci_driver = {
+ .name = KBUILD_MODNAME,
+ .id_table = rtl8169_pci_tbl,
+ .probe = rtl_init_one,
+ .remove = rtl_remove_one,
+ .shutdown = rtl_shutdown,
+ .driver.pm = pm_ptr(&rtl8169_pm_ops),
+};
+
+module_pci_driver(rtl8169_pci_driver);
diff --git a/drivers/net/ethernet/realtek/r8169_phy_config.c b/drivers/net/ethernet/realtek/r8169_phy_config.c
new file mode 100644
index 000000000..b50f16786
--- /dev/null
+++ b/drivers/net/ethernet/realtek/r8169_phy_config.c
@@ -0,0 +1,1159 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * r8169_phy_config.c: RealTek 8169/8168/8101 ethernet driver.
+ *
+ * Copyright (c) 2002 ShuChen <shuchen@realtek.com.tw>
+ * Copyright (c) 2003 - 2007 Francois Romieu <romieu@fr.zoreil.com>
+ * Copyright (c) a lot of people too. Please respect their work.
+ *
+ * See MAINTAINERS file for support contact information.
+ */
+
+#include <linux/delay.h>
+#include <linux/phy.h>
+
+#include "r8169.h"
+
+typedef void (*rtl_phy_cfg_fct)(struct rtl8169_private *tp,
+ struct phy_device *phydev);
+
+static void r8168d_modify_extpage(struct phy_device *phydev, int extpage,
+ int reg, u16 mask, u16 val)
+{
+ int oldpage = phy_select_page(phydev, 0x0007);
+
+ __phy_write(phydev, 0x1e, extpage);
+ __phy_modify(phydev, reg, mask, val);
+
+ phy_restore_page(phydev, oldpage, 0);
+}
+
+static void r8168d_phy_param(struct phy_device *phydev, u16 parm,
+ u16 mask, u16 val)
+{
+ int oldpage = phy_select_page(phydev, 0x0005);
+
+ __phy_write(phydev, 0x05, parm);
+ __phy_modify(phydev, 0x06, mask, val);
+
+ phy_restore_page(phydev, oldpage, 0);
+}
+
+static void r8168g_phy_param(struct phy_device *phydev, u16 parm,
+ u16 mask, u16 val)
+{
+ int oldpage = phy_select_page(phydev, 0x0a43);
+
+ __phy_write(phydev, 0x13, parm);
+ __phy_modify(phydev, 0x14, mask, val);
+
+ phy_restore_page(phydev, oldpage, 0);
+}
+
+struct phy_reg {
+ u16 reg;
+ u16 val;
+};
+
+static void __rtl_writephy_batch(struct phy_device *phydev,
+ const struct phy_reg *regs, int len)
+{
+ phy_lock_mdio_bus(phydev);
+
+ while (len-- > 0) {
+ __phy_write(phydev, regs->reg, regs->val);
+ regs++;
+ }
+
+ phy_unlock_mdio_bus(phydev);
+}
+
+#define rtl_writephy_batch(p, a) __rtl_writephy_batch(p, a, ARRAY_SIZE(a))
+
+static void rtl8168f_config_eee_phy(struct phy_device *phydev)
+{
+ r8168d_modify_extpage(phydev, 0x0020, 0x15, 0, BIT(8));
+ r8168d_phy_param(phydev, 0x8b85, 0, BIT(13));
+}
+
+static void rtl8168g_config_eee_phy(struct phy_device *phydev)
+{
+ phy_modify_paged(phydev, 0x0a43, 0x11, 0, BIT(4));
+}
+
+static void rtl8168h_config_eee_phy(struct phy_device *phydev)
+{
+ rtl8168g_config_eee_phy(phydev);
+
+ phy_modify_paged(phydev, 0xa4a, 0x11, 0x0000, 0x0200);
+ phy_modify_paged(phydev, 0xa42, 0x14, 0x0000, 0x0080);
+}
+
+static void rtl8125a_config_eee_phy(struct phy_device *phydev)
+{
+ rtl8168h_config_eee_phy(phydev);
+
+ phy_modify_paged(phydev, 0xa6d, 0x12, 0x0001, 0x0000);
+ phy_modify_paged(phydev, 0xa6d, 0x14, 0x0010, 0x0000);
+}
+
+static void rtl8125b_config_eee_phy(struct phy_device *phydev)
+{
+ phy_modify_paged(phydev, 0xa6d, 0x12, 0x0001, 0x0000);
+ phy_modify_paged(phydev, 0xa6d, 0x14, 0x0010, 0x0000);
+ phy_modify_paged(phydev, 0xa42, 0x14, 0x0080, 0x0000);
+ phy_modify_paged(phydev, 0xa4a, 0x11, 0x0200, 0x0000);
+}
+
+static void rtl8169s_hw_phy_config(struct rtl8169_private *tp,
+ struct phy_device *phydev)
+{
+ static const struct phy_reg phy_reg_init[] = {
+ { 0x1f, 0x0001 },
+ { 0x06, 0x006e },
+ { 0x08, 0x0708 },
+ { 0x15, 0x4000 },
+ { 0x18, 0x65c7 },
+
+ { 0x1f, 0x0001 },
+ { 0x03, 0x00a1 },
+ { 0x02, 0x0008 },
+ { 0x01, 0x0120 },
+ { 0x00, 0x1000 },
+ { 0x04, 0x0800 },
+ { 0x04, 0x0000 },
+
+ { 0x03, 0xff41 },
+ { 0x02, 0xdf60 },
+ { 0x01, 0x0140 },
+ { 0x00, 0x0077 },
+ { 0x04, 0x7800 },
+ { 0x04, 0x7000 },
+
+ { 0x03, 0x802f },
+ { 0x02, 0x4f02 },
+ { 0x01, 0x0409 },
+ { 0x00, 0xf0f9 },
+ { 0x04, 0x9800 },
+ { 0x04, 0x9000 },
+
+ { 0x03, 0xdf01 },
+ { 0x02, 0xdf20 },
+ { 0x01, 0xff95 },
+ { 0x00, 0xba00 },
+ { 0x04, 0xa800 },
+ { 0x04, 0xa000 },
+
+ { 0x03, 0xff41 },
+ { 0x02, 0xdf20 },
+ { 0x01, 0x0140 },
+ { 0x00, 0x00bb },
+ { 0x04, 0xb800 },
+ { 0x04, 0xb000 },
+
+ { 0x03, 0xdf41 },
+ { 0x02, 0xdc60 },
+ { 0x01, 0x6340 },
+ { 0x00, 0x007d },
+ { 0x04, 0xd800 },
+ { 0x04, 0xd000 },
+
+ { 0x03, 0xdf01 },
+ { 0x02, 0xdf20 },
+ { 0x01, 0x100a },
+ { 0x00, 0xa0ff },
+ { 0x04, 0xf800 },
+ { 0x04, 0xf000 },
+
+ { 0x1f, 0x0000 },
+ { 0x0b, 0x0000 },
+ { 0x00, 0x9200 }
+ };
+
+ rtl_writephy_batch(phydev, phy_reg_init);
+}
+
+static void rtl8169sb_hw_phy_config(struct rtl8169_private *tp,
+ struct phy_device *phydev)
+{
+ phy_write_paged(phydev, 0x0002, 0x01, 0x90d0);
+}
+
+static void rtl8169scd_hw_phy_config(struct rtl8169_private *tp,
+ struct phy_device *phydev)
+{
+ static const struct phy_reg phy_reg_init[] = {
+ { 0x1f, 0x0001 },
+ { 0x04, 0x0000 },
+ { 0x03, 0x00a1 },
+ { 0x02, 0x0008 },
+ { 0x01, 0x0120 },
+ { 0x00, 0x1000 },
+ { 0x04, 0x0800 },
+ { 0x04, 0x9000 },
+ { 0x03, 0x802f },
+ { 0x02, 0x4f02 },
+ { 0x01, 0x0409 },
+ { 0x00, 0xf099 },
+ { 0x04, 0x9800 },
+ { 0x04, 0xa000 },
+ { 0x03, 0xdf01 },
+ { 0x02, 0xdf20 },
+ { 0x01, 0xff95 },
+ { 0x00, 0xba00 },
+ { 0x04, 0xa800 },
+ { 0x04, 0xf000 },
+ { 0x03, 0xdf01 },
+ { 0x02, 0xdf20 },
+ { 0x01, 0x101a },
+ { 0x00, 0xa0ff },
+ { 0x04, 0xf800 },
+ { 0x04, 0x0000 },
+ { 0x1f, 0x0000 },
+
+ { 0x1f, 0x0001 },
+ { 0x10, 0xf41b },
+ { 0x14, 0xfb54 },
+ { 0x18, 0xf5c7 },
+ { 0x1f, 0x0000 },
+
+ { 0x1f, 0x0001 },
+ { 0x17, 0x0cc0 },
+ { 0x1f, 0x0000 }
+ };
+
+ rtl_writephy_batch(phydev, phy_reg_init);
+}
+
+static void rtl8169sce_hw_phy_config(struct rtl8169_private *tp,
+ struct phy_device *phydev)
+{
+ static const struct phy_reg phy_reg_init[] = {
+ { 0x1f, 0x0001 },
+ { 0x04, 0x0000 },
+ { 0x03, 0x00a1 },
+ { 0x02, 0x0008 },
+ { 0x01, 0x0120 },
+ { 0x00, 0x1000 },
+ { 0x04, 0x0800 },
+ { 0x04, 0x9000 },
+ { 0x03, 0x802f },
+ { 0x02, 0x4f02 },
+ { 0x01, 0x0409 },
+ { 0x00, 0xf099 },
+ { 0x04, 0x9800 },
+ { 0x04, 0xa000 },
+ { 0x03, 0xdf01 },
+ { 0x02, 0xdf20 },
+ { 0x01, 0xff95 },
+ { 0x00, 0xba00 },
+ { 0x04, 0xa800 },
+ { 0x04, 0xf000 },
+ { 0x03, 0xdf01 },
+ { 0x02, 0xdf20 },
+ { 0x01, 0x101a },
+ { 0x00, 0xa0ff },
+ { 0x04, 0xf800 },
+ { 0x04, 0x0000 },
+ { 0x1f, 0x0000 },
+
+ { 0x1f, 0x0001 },
+ { 0x0b, 0x8480 },
+ { 0x1f, 0x0000 },
+
+ { 0x1f, 0x0001 },
+ { 0x18, 0x67c7 },
+ { 0x04, 0x2000 },
+ { 0x03, 0x002f },
+ { 0x02, 0x4360 },
+ { 0x01, 0x0109 },
+ { 0x00, 0x3022 },
+ { 0x04, 0x2800 },
+ { 0x1f, 0x0000 },
+
+ { 0x1f, 0x0001 },
+ { 0x17, 0x0cc0 },
+ { 0x1f, 0x0000 }
+ };
+
+ rtl_writephy_batch(phydev, phy_reg_init);
+}
+
+static void rtl8168bb_hw_phy_config(struct rtl8169_private *tp,
+ struct phy_device *phydev)
+{
+ phy_write(phydev, 0x1f, 0x0001);
+ phy_set_bits(phydev, 0x16, BIT(0));
+ phy_write(phydev, 0x10, 0xf41b);
+ phy_write(phydev, 0x1f, 0x0000);
+}
+
+static void rtl8168bef_hw_phy_config(struct rtl8169_private *tp,
+ struct phy_device *phydev)
+{
+ phy_write_paged(phydev, 0x0001, 0x10, 0xf41b);
+}
+
+static void rtl8168cp_1_hw_phy_config(struct rtl8169_private *tp,
+ struct phy_device *phydev)
+{
+ phy_write(phydev, 0x1d, 0x0f00);
+ phy_write_paged(phydev, 0x0002, 0x0c, 0x1ec8);
+}
+
+static void rtl8168cp_2_hw_phy_config(struct rtl8169_private *tp,
+ struct phy_device *phydev)
+{
+ phy_set_bits(phydev, 0x14, BIT(5));
+ phy_set_bits(phydev, 0x0d, BIT(5));
+ phy_write_paged(phydev, 0x0001, 0x1d, 0x3d98);
+}
+
+static void rtl8168c_1_hw_phy_config(struct rtl8169_private *tp,
+ struct phy_device *phydev)
+{
+ static const struct phy_reg phy_reg_init[] = {
+ { 0x1f, 0x0001 },
+ { 0x12, 0x2300 },
+ { 0x1f, 0x0002 },
+ { 0x00, 0x88d4 },
+ { 0x01, 0x82b1 },
+ { 0x03, 0x7002 },
+ { 0x08, 0x9e30 },
+ { 0x09, 0x01f0 },
+ { 0x0a, 0x5500 },
+ { 0x0c, 0x00c8 },
+ { 0x1f, 0x0003 },
+ { 0x12, 0xc096 },
+ { 0x16, 0x000a },
+ { 0x1f, 0x0000 },
+ { 0x1f, 0x0000 },
+ { 0x09, 0x2000 },
+ { 0x09, 0x0000 }
+ };
+
+ rtl_writephy_batch(phydev, phy_reg_init);
+
+ phy_set_bits(phydev, 0x14, BIT(5));
+ phy_set_bits(phydev, 0x0d, BIT(5));
+}
+
+static void rtl8168c_2_hw_phy_config(struct rtl8169_private *tp,
+ struct phy_device *phydev)
+{
+ static const struct phy_reg phy_reg_init[] = {
+ { 0x1f, 0x0001 },
+ { 0x12, 0x2300 },
+ { 0x03, 0x802f },
+ { 0x02, 0x4f02 },
+ { 0x01, 0x0409 },
+ { 0x00, 0xf099 },
+ { 0x04, 0x9800 },
+ { 0x04, 0x9000 },
+ { 0x1d, 0x3d98 },
+ { 0x1f, 0x0002 },
+ { 0x0c, 0x7eb8 },
+ { 0x06, 0x0761 },
+ { 0x1f, 0x0003 },
+ { 0x16, 0x0f0a },
+ { 0x1f, 0x0000 }
+ };
+
+ rtl_writephy_batch(phydev, phy_reg_init);
+
+ phy_set_bits(phydev, 0x16, BIT(0));
+ phy_set_bits(phydev, 0x14, BIT(5));
+ phy_set_bits(phydev, 0x0d, BIT(5));
+}
+
+static void rtl8168c_3_hw_phy_config(struct rtl8169_private *tp,
+ struct phy_device *phydev)
+{
+ static const struct phy_reg phy_reg_init[] = {
+ { 0x1f, 0x0001 },
+ { 0x12, 0x2300 },
+ { 0x1d, 0x3d98 },
+ { 0x1f, 0x0002 },
+ { 0x0c, 0x7eb8 },
+ { 0x06, 0x5461 },
+ { 0x1f, 0x0003 },
+ { 0x16, 0x0f0a },
+ { 0x1f, 0x0000 }
+ };
+
+ rtl_writephy_batch(phydev, phy_reg_init);
+
+ phy_set_bits(phydev, 0x16, BIT(0));
+ phy_set_bits(phydev, 0x14, BIT(5));
+ phy_set_bits(phydev, 0x0d, BIT(5));
+}
+
+static const struct phy_reg rtl8168d_1_phy_reg_init_0[] = {
+ /* Channel Estimation */
+ { 0x1f, 0x0001 },
+ { 0x06, 0x4064 },
+ { 0x07, 0x2863 },
+ { 0x08, 0x059c },
+ { 0x09, 0x26b4 },
+ { 0x0a, 0x6a19 },
+ { 0x0b, 0xdcc8 },
+ { 0x10, 0xf06d },
+ { 0x14, 0x7f68 },
+ { 0x18, 0x7fd9 },
+ { 0x1c, 0xf0ff },
+ { 0x1d, 0x3d9c },
+ { 0x1f, 0x0003 },
+ { 0x12, 0xf49f },
+ { 0x13, 0x070b },
+ { 0x1a, 0x05ad },
+ { 0x14, 0x94c0 },
+
+ /*
+ * Tx Error Issue
+ * Enhance line driver power
+ */
+ { 0x1f, 0x0002 },
+ { 0x06, 0x5561 },
+ { 0x1f, 0x0005 },
+ { 0x05, 0x8332 },
+ { 0x06, 0x5561 },
+
+ /*
+ * Can not link to 1Gbps with bad cable
+ * Decrease SNR threshold form 21.07dB to 19.04dB
+ */
+ { 0x1f, 0x0001 },
+ { 0x17, 0x0cc0 },
+
+ { 0x1f, 0x0000 },
+ { 0x0d, 0xf880 }
+};
+
+static void rtl8168d_apply_firmware_cond(struct rtl8169_private *tp,
+ struct phy_device *phydev,
+ u16 val)
+{
+ u16 reg_val;
+
+ phy_write(phydev, 0x1f, 0x0005);
+ phy_write(phydev, 0x05, 0x001b);
+ reg_val = phy_read(phydev, 0x06);
+ phy_write(phydev, 0x1f, 0x0000);
+
+ if (reg_val != val)
+ phydev_warn(phydev, "chipset not ready for firmware\n");
+ else
+ r8169_apply_firmware(tp);
+}
+
+static void rtl8168d_1_common(struct phy_device *phydev)
+{
+ u16 val;
+
+ phy_write_paged(phydev, 0x0002, 0x05, 0x669a);
+ r8168d_phy_param(phydev, 0x8330, 0xffff, 0x669a);
+ phy_write(phydev, 0x1f, 0x0002);
+
+ val = phy_read(phydev, 0x0d);
+
+ if ((val & 0x00ff) != 0x006c) {
+ static const u16 set[] = {
+ 0x0065, 0x0066, 0x0067, 0x0068,
+ 0x0069, 0x006a, 0x006b, 0x006c
+ };
+ int i;
+
+ val &= 0xff00;
+ for (i = 0; i < ARRAY_SIZE(set); i++)
+ phy_write(phydev, 0x0d, val | set[i]);
+ }
+}
+
+static void rtl8168d_1_hw_phy_config(struct rtl8169_private *tp,
+ struct phy_device *phydev)
+{
+ rtl_writephy_batch(phydev, rtl8168d_1_phy_reg_init_0);
+
+ /*
+ * Rx Error Issue
+ * Fine Tune Switching regulator parameter
+ */
+ phy_write(phydev, 0x1f, 0x0002);
+ phy_modify(phydev, 0x0b, 0x00ef, 0x0010);
+ phy_modify(phydev, 0x0c, 0x5d00, 0xa200);
+
+ if (rtl8168d_efuse_read(tp, 0x01) == 0xb1) {
+ rtl8168d_1_common(phydev);
+ } else {
+ phy_write_paged(phydev, 0x0002, 0x05, 0x6662);
+ r8168d_phy_param(phydev, 0x8330, 0xffff, 0x6662);
+ }
+
+ /* RSET couple improve */
+ phy_write(phydev, 0x1f, 0x0002);
+ phy_set_bits(phydev, 0x0d, 0x0300);
+ phy_set_bits(phydev, 0x0f, 0x0010);
+
+ /* Fine tune PLL performance */
+ phy_write(phydev, 0x1f, 0x0002);
+ phy_modify(phydev, 0x02, 0x0600, 0x0100);
+ phy_clear_bits(phydev, 0x03, 0xe000);
+ phy_write(phydev, 0x1f, 0x0000);
+
+ rtl8168d_apply_firmware_cond(tp, phydev, 0xbf00);
+}
+
+static void rtl8168d_2_hw_phy_config(struct rtl8169_private *tp,
+ struct phy_device *phydev)
+{
+ rtl_writephy_batch(phydev, rtl8168d_1_phy_reg_init_0);
+
+ if (rtl8168d_efuse_read(tp, 0x01) == 0xb1) {
+ rtl8168d_1_common(phydev);
+ } else {
+ phy_write_paged(phydev, 0x0002, 0x05, 0x2642);
+ r8168d_phy_param(phydev, 0x8330, 0xffff, 0x2642);
+ }
+
+ /* Fine tune PLL performance */
+ phy_write(phydev, 0x1f, 0x0002);
+ phy_modify(phydev, 0x02, 0x0600, 0x0100);
+ phy_clear_bits(phydev, 0x03, 0xe000);
+ phy_write(phydev, 0x1f, 0x0000);
+
+ /* Switching regulator Slew rate */
+ phy_modify_paged(phydev, 0x0002, 0x0f, 0x0000, 0x0017);
+
+ rtl8168d_apply_firmware_cond(tp, phydev, 0xb300);
+}
+
+static void rtl8168d_4_hw_phy_config(struct rtl8169_private *tp,
+ struct phy_device *phydev)
+{
+ phy_write_paged(phydev, 0x0001, 0x17, 0x0cc0);
+ r8168d_modify_extpage(phydev, 0x002d, 0x18, 0xffff, 0x0040);
+ phy_set_bits(phydev, 0x0d, BIT(5));
+}
+
+static void rtl8168e_1_hw_phy_config(struct rtl8169_private *tp,
+ struct phy_device *phydev)
+{
+ static const struct phy_reg phy_reg_init[] = {
+ /* Channel estimation fine tune */
+ { 0x1f, 0x0001 },
+ { 0x0b, 0x6c20 },
+ { 0x07, 0x2872 },
+ { 0x1c, 0xefff },
+ { 0x1f, 0x0003 },
+ { 0x14, 0x6420 },
+ { 0x1f, 0x0000 },
+ };
+
+ r8169_apply_firmware(tp);
+
+ /* Enable Delay cap */
+ r8168d_phy_param(phydev, 0x8b80, 0xffff, 0xc896);
+
+ rtl_writephy_batch(phydev, phy_reg_init);
+
+ /* Update PFM & 10M TX idle timer */
+ r8168d_modify_extpage(phydev, 0x002f, 0x15, 0xffff, 0x1919);
+
+ r8168d_modify_extpage(phydev, 0x00ac, 0x18, 0xffff, 0x0006);
+
+ /* DCO enable for 10M IDLE Power */
+ r8168d_modify_extpage(phydev, 0x0023, 0x17, 0x0000, 0x0006);
+
+ /* For impedance matching */
+ phy_modify_paged(phydev, 0x0002, 0x08, 0x7f00, 0x8000);
+
+ /* PHY auto speed down */
+ r8168d_modify_extpage(phydev, 0x002d, 0x18, 0x0000, 0x0050);
+ phy_set_bits(phydev, 0x14, BIT(15));
+
+ r8168d_phy_param(phydev, 0x8b86, 0x0000, 0x0001);
+ r8168d_phy_param(phydev, 0x8b85, 0x2000, 0x0000);
+
+ r8168d_modify_extpage(phydev, 0x0020, 0x15, 0x1100, 0x0000);
+ phy_write_paged(phydev, 0x0006, 0x00, 0x5a00);
+
+ phy_write_mmd(phydev, MDIO_MMD_AN, MDIO_AN_EEE_ADV, 0x0000);
+}
+
+static void rtl8168e_2_hw_phy_config(struct rtl8169_private *tp,
+ struct phy_device *phydev)
+{
+ r8169_apply_firmware(tp);
+
+ /* Enable Delay cap */
+ r8168d_modify_extpage(phydev, 0x00ac, 0x18, 0xffff, 0x0006);
+
+ /* Channel estimation fine tune */
+ phy_write_paged(phydev, 0x0003, 0x09, 0xa20f);
+
+ /* Green Setting */
+ r8168d_phy_param(phydev, 0x8b5b, 0xffff, 0x9222);
+ r8168d_phy_param(phydev, 0x8b6d, 0xffff, 0x8000);
+ r8168d_phy_param(phydev, 0x8b76, 0xffff, 0x8000);
+
+ /* For 4-corner performance improve */
+ phy_write(phydev, 0x1f, 0x0005);
+ phy_write(phydev, 0x05, 0x8b80);
+ phy_set_bits(phydev, 0x17, 0x0006);
+ phy_write(phydev, 0x1f, 0x0000);
+
+ /* PHY auto speed down */
+ r8168d_modify_extpage(phydev, 0x002d, 0x18, 0x0000, 0x0010);
+ phy_set_bits(phydev, 0x14, BIT(15));
+
+ /* improve 10M EEE waveform */
+ r8168d_phy_param(phydev, 0x8b86, 0x0000, 0x0001);
+
+ /* Improve 2-pair detection performance */
+ r8168d_phy_param(phydev, 0x8b85, 0x0000, 0x4000);
+
+ rtl8168f_config_eee_phy(phydev);
+
+ /* Green feature */
+ phy_write(phydev, 0x1f, 0x0003);
+ phy_set_bits(phydev, 0x19, BIT(0));
+ phy_set_bits(phydev, 0x10, BIT(10));
+ phy_write(phydev, 0x1f, 0x0000);
+ phy_modify_paged(phydev, 0x0005, 0x01, 0, BIT(8));
+}
+
+static void rtl8168f_hw_phy_config(struct rtl8169_private *tp,
+ struct phy_device *phydev)
+{
+ /* For 4-corner performance improve */
+ r8168d_phy_param(phydev, 0x8b80, 0x0000, 0x0006);
+
+ /* PHY auto speed down */
+ r8168d_modify_extpage(phydev, 0x002d, 0x18, 0x0000, 0x0010);
+ phy_set_bits(phydev, 0x14, BIT(15));
+
+ /* Improve 10M EEE waveform */
+ r8168d_phy_param(phydev, 0x8b86, 0x0000, 0x0001);
+
+ rtl8168f_config_eee_phy(phydev);
+}
+
+static void rtl8168f_1_hw_phy_config(struct rtl8169_private *tp,
+ struct phy_device *phydev)
+{
+ r8169_apply_firmware(tp);
+
+ /* Channel estimation fine tune */
+ phy_write_paged(phydev, 0x0003, 0x09, 0xa20f);
+
+ /* Modify green table for giga & fnet */
+ r8168d_phy_param(phydev, 0x8b55, 0xffff, 0x0000);
+ r8168d_phy_param(phydev, 0x8b5e, 0xffff, 0x0000);
+ r8168d_phy_param(phydev, 0x8b67, 0xffff, 0x0000);
+ r8168d_phy_param(phydev, 0x8b70, 0xffff, 0x0000);
+ r8168d_modify_extpage(phydev, 0x0078, 0x17, 0xffff, 0x0000);
+ r8168d_modify_extpage(phydev, 0x0078, 0x19, 0xffff, 0x00fb);
+
+ /* Modify green table for 10M */
+ r8168d_phy_param(phydev, 0x8b79, 0xffff, 0xaa00);
+
+ /* Disable hiimpedance detection (RTCT) */
+ phy_write_paged(phydev, 0x0003, 0x01, 0x328a);
+
+ rtl8168f_hw_phy_config(tp, phydev);
+
+ /* Improve 2-pair detection performance */
+ r8168d_phy_param(phydev, 0x8b85, 0x0000, 0x4000);
+}
+
+static void rtl8168f_2_hw_phy_config(struct rtl8169_private *tp,
+ struct phy_device *phydev)
+{
+ r8169_apply_firmware(tp);
+
+ rtl8168f_hw_phy_config(tp, phydev);
+}
+
+static void rtl8411_hw_phy_config(struct rtl8169_private *tp,
+ struct phy_device *phydev)
+{
+ r8169_apply_firmware(tp);
+
+ rtl8168f_hw_phy_config(tp, phydev);
+
+ /* Improve 2-pair detection performance */
+ r8168d_phy_param(phydev, 0x8b85, 0x0000, 0x4000);
+
+ /* Channel estimation fine tune */
+ phy_write_paged(phydev, 0x0003, 0x09, 0xa20f);
+
+ /* Modify green table for giga & fnet */
+ r8168d_phy_param(phydev, 0x8b55, 0xffff, 0x0000);
+ r8168d_phy_param(phydev, 0x8b5e, 0xffff, 0x0000);
+ r8168d_phy_param(phydev, 0x8b67, 0xffff, 0x0000);
+ r8168d_phy_param(phydev, 0x8b70, 0xffff, 0x0000);
+ r8168d_modify_extpage(phydev, 0x0078, 0x17, 0xffff, 0x0000);
+ r8168d_modify_extpage(phydev, 0x0078, 0x19, 0xffff, 0x00aa);
+
+ /* Modify green table for 10M */
+ r8168d_phy_param(phydev, 0x8b79, 0xffff, 0xaa00);
+
+ /* Disable hiimpedance detection (RTCT) */
+ phy_write_paged(phydev, 0x0003, 0x01, 0x328a);
+
+ /* Modify green table for giga */
+ r8168d_phy_param(phydev, 0x8b54, 0x0800, 0x0000);
+ r8168d_phy_param(phydev, 0x8b5d, 0x0800, 0x0000);
+ r8168d_phy_param(phydev, 0x8a7c, 0x0100, 0x0000);
+ r8168d_phy_param(phydev, 0x8a7f, 0x0000, 0x0100);
+ r8168d_phy_param(phydev, 0x8a82, 0x0100, 0x0000);
+ r8168d_phy_param(phydev, 0x8a85, 0x0100, 0x0000);
+ r8168d_phy_param(phydev, 0x8a88, 0x0100, 0x0000);
+
+ /* uc same-seed solution */
+ r8168d_phy_param(phydev, 0x8b85, 0x0000, 0x8000);
+
+ /* Green feature */
+ phy_write(phydev, 0x1f, 0x0003);
+ phy_clear_bits(phydev, 0x19, BIT(0));
+ phy_clear_bits(phydev, 0x10, BIT(10));
+ phy_write(phydev, 0x1f, 0x0000);
+}
+
+static void rtl8168g_disable_aldps(struct phy_device *phydev)
+{
+ phy_modify_paged(phydev, 0x0a43, 0x10, BIT(2), 0);
+}
+
+static void rtl8168g_enable_gphy_10m(struct phy_device *phydev)
+{
+ phy_modify_paged(phydev, 0x0a44, 0x11, 0, BIT(11));
+}
+
+static void rtl8168g_phy_adjust_10m_aldps(struct phy_device *phydev)
+{
+ phy_modify_paged(phydev, 0x0bcc, 0x14, BIT(8), 0);
+ phy_modify_paged(phydev, 0x0a44, 0x11, 0, BIT(7) | BIT(6));
+ r8168g_phy_param(phydev, 0x8084, 0x6000, 0x0000);
+ phy_modify_paged(phydev, 0x0a43, 0x10, 0x0000, 0x1003);
+}
+
+static void rtl8168g_1_hw_phy_config(struct rtl8169_private *tp,
+ struct phy_device *phydev)
+{
+ int ret;
+
+ r8169_apply_firmware(tp);
+
+ ret = phy_read_paged(phydev, 0x0a46, 0x10);
+ if (ret & BIT(8))
+ phy_modify_paged(phydev, 0x0bcc, 0x12, BIT(15), 0);
+ else
+ phy_modify_paged(phydev, 0x0bcc, 0x12, 0, BIT(15));
+
+ ret = phy_read_paged(phydev, 0x0a46, 0x13);
+ if (ret & BIT(8))
+ phy_modify_paged(phydev, 0x0c41, 0x15, 0, BIT(1));
+ else
+ phy_modify_paged(phydev, 0x0c41, 0x15, BIT(1), 0);
+
+ /* Enable PHY auto speed down */
+ phy_modify_paged(phydev, 0x0a44, 0x11, 0, BIT(3) | BIT(2));
+
+ rtl8168g_phy_adjust_10m_aldps(phydev);
+
+ /* EEE auto-fallback function */
+ phy_modify_paged(phydev, 0x0a4b, 0x11, 0, BIT(2));
+
+ /* Enable UC LPF tune function */
+ r8168g_phy_param(phydev, 0x8012, 0x0000, 0x8000);
+
+ phy_modify_paged(phydev, 0x0c42, 0x11, BIT(13), BIT(14));
+
+ /* Improve SWR Efficiency */
+ phy_write(phydev, 0x1f, 0x0bcd);
+ phy_write(phydev, 0x14, 0x5065);
+ phy_write(phydev, 0x14, 0xd065);
+ phy_write(phydev, 0x1f, 0x0bc8);
+ phy_write(phydev, 0x11, 0x5655);
+ phy_write(phydev, 0x1f, 0x0bcd);
+ phy_write(phydev, 0x14, 0x1065);
+ phy_write(phydev, 0x14, 0x9065);
+ phy_write(phydev, 0x14, 0x1065);
+ phy_write(phydev, 0x1f, 0x0000);
+
+ rtl8168g_disable_aldps(phydev);
+ rtl8168g_config_eee_phy(phydev);
+}
+
+static void rtl8168g_2_hw_phy_config(struct rtl8169_private *tp,
+ struct phy_device *phydev)
+{
+ r8169_apply_firmware(tp);
+ rtl8168g_config_eee_phy(phydev);
+}
+
+static void rtl8168h_2_hw_phy_config(struct rtl8169_private *tp,
+ struct phy_device *phydev)
+{
+ u16 ioffset, rlen;
+ u32 data;
+
+ r8169_apply_firmware(tp);
+
+ /* CHIN EST parameter update */
+ r8168g_phy_param(phydev, 0x808a, 0x003f, 0x000a);
+
+ /* enable R-tune & PGA-retune function */
+ r8168g_phy_param(phydev, 0x0811, 0x0000, 0x0800);
+ phy_modify_paged(phydev, 0x0a42, 0x16, 0x0000, 0x0002);
+
+ rtl8168g_enable_gphy_10m(phydev);
+
+ ioffset = rtl8168h_2_get_adc_bias_ioffset(tp);
+ if (ioffset != 0xffff)
+ phy_write_paged(phydev, 0x0bcf, 0x16, ioffset);
+
+ /* Modify rlen (TX LPF corner frequency) level */
+ data = phy_read_paged(phydev, 0x0bcd, 0x16);
+ data &= 0x000f;
+ rlen = 0;
+ if (data > 3)
+ rlen = data - 3;
+ data = rlen | (rlen << 4) | (rlen << 8) | (rlen << 12);
+ phy_write_paged(phydev, 0x0bcd, 0x17, data);
+
+ /* disable phy pfm mode */
+ phy_modify_paged(phydev, 0x0a44, 0x11, BIT(7), 0);
+
+ /* disable 10m pll off */
+ phy_modify_paged(phydev, 0x0a43, 0x10, BIT(0), 0);
+
+ rtl8168g_disable_aldps(phydev);
+ rtl8168g_config_eee_phy(phydev);
+}
+
+static void rtl8168ep_2_hw_phy_config(struct rtl8169_private *tp,
+ struct phy_device *phydev)
+{
+ rtl8168g_phy_adjust_10m_aldps(phydev);
+
+ /* Enable UC LPF tune function */
+ r8168g_phy_param(phydev, 0x8012, 0x0000, 0x8000);
+
+ /* Set rg_sel_sdm_rate */
+ phy_modify_paged(phydev, 0x0c42, 0x11, BIT(13), BIT(14));
+
+ /* Channel estimation parameters */
+ r8168g_phy_param(phydev, 0x80f3, 0xff00, 0x8b00);
+ r8168g_phy_param(phydev, 0x80f0, 0xff00, 0x3a00);
+ r8168g_phy_param(phydev, 0x80ef, 0xff00, 0x0500);
+ r8168g_phy_param(phydev, 0x80f6, 0xff00, 0x6e00);
+ r8168g_phy_param(phydev, 0x80ec, 0xff00, 0x6800);
+ r8168g_phy_param(phydev, 0x80ed, 0xff00, 0x7c00);
+ r8168g_phy_param(phydev, 0x80f2, 0xff00, 0xf400);
+ r8168g_phy_param(phydev, 0x80f4, 0xff00, 0x8500);
+ r8168g_phy_param(phydev, 0x8110, 0xff00, 0xa800);
+ r8168g_phy_param(phydev, 0x810f, 0xff00, 0x1d00);
+ r8168g_phy_param(phydev, 0x8111, 0xff00, 0xf500);
+ r8168g_phy_param(phydev, 0x8113, 0xff00, 0x6100);
+ r8168g_phy_param(phydev, 0x8115, 0xff00, 0x9200);
+ r8168g_phy_param(phydev, 0x810e, 0xff00, 0x0400);
+ r8168g_phy_param(phydev, 0x810c, 0xff00, 0x7c00);
+ r8168g_phy_param(phydev, 0x810b, 0xff00, 0x5a00);
+ r8168g_phy_param(phydev, 0x80d1, 0xff00, 0xff00);
+ r8168g_phy_param(phydev, 0x80cd, 0xff00, 0x9e00);
+ r8168g_phy_param(phydev, 0x80d3, 0xff00, 0x0e00);
+ r8168g_phy_param(phydev, 0x80d5, 0xff00, 0xca00);
+ r8168g_phy_param(phydev, 0x80d7, 0xff00, 0x8400);
+
+ /* Force PWM-mode */
+ phy_write(phydev, 0x1f, 0x0bcd);
+ phy_write(phydev, 0x14, 0x5065);
+ phy_write(phydev, 0x14, 0xd065);
+ phy_write(phydev, 0x1f, 0x0bc8);
+ phy_write(phydev, 0x12, 0x00ed);
+ phy_write(phydev, 0x1f, 0x0bcd);
+ phy_write(phydev, 0x14, 0x1065);
+ phy_write(phydev, 0x14, 0x9065);
+ phy_write(phydev, 0x14, 0x1065);
+ phy_write(phydev, 0x1f, 0x0000);
+
+ rtl8168g_disable_aldps(phydev);
+ rtl8168g_config_eee_phy(phydev);
+}
+
+static void rtl8117_hw_phy_config(struct rtl8169_private *tp,
+ struct phy_device *phydev)
+{
+ /* CHN EST parameters adjust - fnet */
+ r8168g_phy_param(phydev, 0x808e, 0xff00, 0x4800);
+ r8168g_phy_param(phydev, 0x8090, 0xff00, 0xcc00);
+ r8168g_phy_param(phydev, 0x8092, 0xff00, 0xb000);
+
+ r8168g_phy_param(phydev, 0x8088, 0xff00, 0x6000);
+ r8168g_phy_param(phydev, 0x808b, 0x3f00, 0x0b00);
+ r8168g_phy_param(phydev, 0x808d, 0x1f00, 0x0600);
+ r8168g_phy_param(phydev, 0x808c, 0xff00, 0xb000);
+ r8168g_phy_param(phydev, 0x80a0, 0xff00, 0x2800);
+ r8168g_phy_param(phydev, 0x80a2, 0xff00, 0x5000);
+ r8168g_phy_param(phydev, 0x809b, 0xf800, 0xb000);
+ r8168g_phy_param(phydev, 0x809a, 0xff00, 0x4b00);
+ r8168g_phy_param(phydev, 0x809d, 0x3f00, 0x0800);
+ r8168g_phy_param(phydev, 0x80a1, 0xff00, 0x7000);
+ r8168g_phy_param(phydev, 0x809f, 0x1f00, 0x0300);
+ r8168g_phy_param(phydev, 0x809e, 0xff00, 0x8800);
+ r8168g_phy_param(phydev, 0x80b2, 0xff00, 0x2200);
+ r8168g_phy_param(phydev, 0x80ad, 0xf800, 0x9800);
+ r8168g_phy_param(phydev, 0x80af, 0x3f00, 0x0800);
+ r8168g_phy_param(phydev, 0x80b3, 0xff00, 0x6f00);
+ r8168g_phy_param(phydev, 0x80b1, 0x1f00, 0x0300);
+ r8168g_phy_param(phydev, 0x80b0, 0xff00, 0x9300);
+
+ r8168g_phy_param(phydev, 0x8011, 0x0000, 0x0800);
+
+ rtl8168g_enable_gphy_10m(phydev);
+
+ r8168g_phy_param(phydev, 0x8016, 0x0000, 0x0400);
+
+ rtl8168g_disable_aldps(phydev);
+ rtl8168h_config_eee_phy(phydev);
+}
+
+static void rtl8102e_hw_phy_config(struct rtl8169_private *tp,
+ struct phy_device *phydev)
+{
+ static const struct phy_reg phy_reg_init[] = {
+ { 0x1f, 0x0003 },
+ { 0x08, 0x441d },
+ { 0x01, 0x9100 },
+ { 0x1f, 0x0000 }
+ };
+
+ phy_set_bits(phydev, 0x11, BIT(12));
+ phy_set_bits(phydev, 0x19, BIT(13));
+ phy_set_bits(phydev, 0x10, BIT(15));
+
+ rtl_writephy_batch(phydev, phy_reg_init);
+}
+
+static void rtl8401_hw_phy_config(struct rtl8169_private *tp,
+ struct phy_device *phydev)
+{
+ phy_set_bits(phydev, 0x11, BIT(12));
+ phy_modify_paged(phydev, 0x0002, 0x0f, 0x0000, 0x0003);
+}
+
+static void rtl8105e_hw_phy_config(struct rtl8169_private *tp,
+ struct phy_device *phydev)
+{
+ /* Disable ALDPS before ram code */
+ phy_write(phydev, 0x18, 0x0310);
+ msleep(100);
+
+ r8169_apply_firmware(tp);
+
+ phy_write_paged(phydev, 0x0005, 0x1a, 0x0000);
+ phy_write_paged(phydev, 0x0004, 0x1c, 0x0000);
+ phy_write_paged(phydev, 0x0001, 0x15, 0x7701);
+}
+
+static void rtl8402_hw_phy_config(struct rtl8169_private *tp,
+ struct phy_device *phydev)
+{
+ /* Disable ALDPS before setting firmware */
+ phy_write(phydev, 0x18, 0x0310);
+ msleep(20);
+
+ r8169_apply_firmware(tp);
+
+ /* EEE setting */
+ phy_write(phydev, 0x1f, 0x0004);
+ phy_write(phydev, 0x10, 0x401f);
+ phy_write(phydev, 0x19, 0x7030);
+ phy_write(phydev, 0x1f, 0x0000);
+}
+
+static void rtl8106e_hw_phy_config(struct rtl8169_private *tp,
+ struct phy_device *phydev)
+{
+ static const struct phy_reg phy_reg_init[] = {
+ { 0x1f, 0x0004 },
+ { 0x10, 0xc07f },
+ { 0x19, 0x7030 },
+ { 0x1f, 0x0000 }
+ };
+
+ /* Disable ALDPS before ram code */
+ phy_write(phydev, 0x18, 0x0310);
+ msleep(100);
+
+ r8169_apply_firmware(tp);
+
+ rtl_writephy_batch(phydev, phy_reg_init);
+}
+
+static void rtl8125_legacy_force_mode(struct phy_device *phydev)
+{
+ phy_modify_paged(phydev, 0xa5b, 0x12, BIT(15), 0);
+}
+
+static void rtl8125a_2_hw_phy_config(struct rtl8169_private *tp,
+ struct phy_device *phydev)
+{
+ int i;
+
+ phy_modify_paged(phydev, 0xad4, 0x17, 0x0000, 0x0010);
+ phy_modify_paged(phydev, 0xad1, 0x13, 0x03ff, 0x03ff);
+ phy_modify_paged(phydev, 0xad3, 0x11, 0x003f, 0x0006);
+ phy_modify_paged(phydev, 0xac0, 0x14, 0x1100, 0x0000);
+ phy_modify_paged(phydev, 0xacc, 0x10, 0x0003, 0x0002);
+ phy_modify_paged(phydev, 0xad4, 0x10, 0x00e7, 0x0044);
+ phy_modify_paged(phydev, 0xac1, 0x12, 0x0080, 0x0000);
+ phy_modify_paged(phydev, 0xac8, 0x10, 0x0300, 0x0000);
+ phy_modify_paged(phydev, 0xac5, 0x17, 0x0007, 0x0002);
+ phy_write_paged(phydev, 0xad4, 0x16, 0x00a8);
+ phy_write_paged(phydev, 0xac5, 0x16, 0x01ff);
+ phy_modify_paged(phydev, 0xac8, 0x15, 0x00f0, 0x0030);
+
+ phy_write(phydev, 0x1f, 0x0b87);
+ phy_write(phydev, 0x16, 0x80a2);
+ phy_write(phydev, 0x17, 0x0153);
+ phy_write(phydev, 0x16, 0x809c);
+ phy_write(phydev, 0x17, 0x0153);
+ phy_write(phydev, 0x1f, 0x0000);
+
+ phy_write(phydev, 0x1f, 0x0a43);
+ phy_write(phydev, 0x13, 0x81B3);
+ phy_write(phydev, 0x14, 0x0043);
+ phy_write(phydev, 0x14, 0x00A7);
+ phy_write(phydev, 0x14, 0x00D6);
+ phy_write(phydev, 0x14, 0x00EC);
+ phy_write(phydev, 0x14, 0x00F6);
+ phy_write(phydev, 0x14, 0x00FB);
+ phy_write(phydev, 0x14, 0x00FD);
+ phy_write(phydev, 0x14, 0x00FF);
+ phy_write(phydev, 0x14, 0x00BB);
+ phy_write(phydev, 0x14, 0x0058);
+ phy_write(phydev, 0x14, 0x0029);
+ phy_write(phydev, 0x14, 0x0013);
+ phy_write(phydev, 0x14, 0x0009);
+ phy_write(phydev, 0x14, 0x0004);
+ phy_write(phydev, 0x14, 0x0002);
+ for (i = 0; i < 25; i++)
+ phy_write(phydev, 0x14, 0x0000);
+ phy_write(phydev, 0x1f, 0x0000);
+
+ r8168g_phy_param(phydev, 0x8257, 0xffff, 0x020F);
+ r8168g_phy_param(phydev, 0x80ea, 0xffff, 0x7843);
+
+ r8169_apply_firmware(tp);
+
+ phy_modify_paged(phydev, 0xd06, 0x14, 0x0000, 0x2000);
+
+ r8168g_phy_param(phydev, 0x81a2, 0x0000, 0x0100);
+
+ phy_modify_paged(phydev, 0xb54, 0x16, 0xff00, 0xdb00);
+ phy_modify_paged(phydev, 0xa45, 0x12, 0x0001, 0x0000);
+ phy_modify_paged(phydev, 0xa5d, 0x12, 0x0000, 0x0020);
+ phy_modify_paged(phydev, 0xad4, 0x17, 0x0010, 0x0000);
+ phy_modify_paged(phydev, 0xa86, 0x15, 0x0001, 0x0000);
+ rtl8168g_enable_gphy_10m(phydev);
+
+ rtl8125a_config_eee_phy(phydev);
+}
+
+static void rtl8125b_hw_phy_config(struct rtl8169_private *tp,
+ struct phy_device *phydev)
+{
+ r8169_apply_firmware(tp);
+
+ phy_modify_paged(phydev, 0xa44, 0x11, 0x0000, 0x0800);
+ phy_modify_paged(phydev, 0xac4, 0x13, 0x00f0, 0x0090);
+ phy_modify_paged(phydev, 0xad3, 0x10, 0x0003, 0x0001);
+
+ phy_write(phydev, 0x1f, 0x0b87);
+ phy_write(phydev, 0x16, 0x80f5);
+ phy_write(phydev, 0x17, 0x760e);
+ phy_write(phydev, 0x16, 0x8107);
+ phy_write(phydev, 0x17, 0x360e);
+ phy_write(phydev, 0x16, 0x8551);
+ phy_modify(phydev, 0x17, 0xff00, 0x0800);
+ phy_write(phydev, 0x1f, 0x0000);
+
+ phy_modify_paged(phydev, 0xbf0, 0x10, 0xe000, 0xa000);
+ phy_modify_paged(phydev, 0xbf4, 0x13, 0x0f00, 0x0300);
+
+ r8168g_phy_param(phydev, 0x8044, 0xffff, 0x2417);
+ r8168g_phy_param(phydev, 0x804a, 0xffff, 0x2417);
+ r8168g_phy_param(phydev, 0x8050, 0xffff, 0x2417);
+ r8168g_phy_param(phydev, 0x8056, 0xffff, 0x2417);
+ r8168g_phy_param(phydev, 0x805c, 0xffff, 0x2417);
+ r8168g_phy_param(phydev, 0x8062, 0xffff, 0x2417);
+ r8168g_phy_param(phydev, 0x8068, 0xffff, 0x2417);
+ r8168g_phy_param(phydev, 0x806e, 0xffff, 0x2417);
+ r8168g_phy_param(phydev, 0x8074, 0xffff, 0x2417);
+ r8168g_phy_param(phydev, 0x807a, 0xffff, 0x2417);
+
+ phy_modify_paged(phydev, 0xa4c, 0x15, 0x0000, 0x0040);
+ phy_modify_paged(phydev, 0xbf8, 0x12, 0xe000, 0xa000);
+
+ rtl8125_legacy_force_mode(phydev);
+ rtl8125b_config_eee_phy(phydev);
+}
+
+void r8169_hw_phy_config(struct rtl8169_private *tp, struct phy_device *phydev,
+ enum mac_version ver)
+{
+ static const rtl_phy_cfg_fct phy_configs[] = {
+ /* PCI devices. */
+ [RTL_GIGA_MAC_VER_02] = rtl8169s_hw_phy_config,
+ [RTL_GIGA_MAC_VER_03] = rtl8169s_hw_phy_config,
+ [RTL_GIGA_MAC_VER_04] = rtl8169sb_hw_phy_config,
+ [RTL_GIGA_MAC_VER_05] = rtl8169scd_hw_phy_config,
+ [RTL_GIGA_MAC_VER_06] = rtl8169sce_hw_phy_config,
+ /* PCI-E devices. */
+ [RTL_GIGA_MAC_VER_07] = rtl8102e_hw_phy_config,
+ [RTL_GIGA_MAC_VER_08] = rtl8102e_hw_phy_config,
+ [RTL_GIGA_MAC_VER_09] = rtl8102e_hw_phy_config,
+ [RTL_GIGA_MAC_VER_10] = NULL,
+ [RTL_GIGA_MAC_VER_11] = rtl8168bb_hw_phy_config,
+ [RTL_GIGA_MAC_VER_14] = rtl8401_hw_phy_config,
+ [RTL_GIGA_MAC_VER_17] = rtl8168bef_hw_phy_config,
+ [RTL_GIGA_MAC_VER_18] = rtl8168cp_1_hw_phy_config,
+ [RTL_GIGA_MAC_VER_19] = rtl8168c_1_hw_phy_config,
+ [RTL_GIGA_MAC_VER_20] = rtl8168c_2_hw_phy_config,
+ [RTL_GIGA_MAC_VER_21] = rtl8168c_3_hw_phy_config,
+ [RTL_GIGA_MAC_VER_22] = rtl8168c_3_hw_phy_config,
+ [RTL_GIGA_MAC_VER_23] = rtl8168cp_2_hw_phy_config,
+ [RTL_GIGA_MAC_VER_24] = rtl8168cp_2_hw_phy_config,
+ [RTL_GIGA_MAC_VER_25] = rtl8168d_1_hw_phy_config,
+ [RTL_GIGA_MAC_VER_26] = rtl8168d_2_hw_phy_config,
+ [RTL_GIGA_MAC_VER_28] = rtl8168d_4_hw_phy_config,
+ [RTL_GIGA_MAC_VER_29] = rtl8105e_hw_phy_config,
+ [RTL_GIGA_MAC_VER_30] = rtl8105e_hw_phy_config,
+ [RTL_GIGA_MAC_VER_31] = NULL,
+ [RTL_GIGA_MAC_VER_32] = rtl8168e_1_hw_phy_config,
+ [RTL_GIGA_MAC_VER_33] = rtl8168e_1_hw_phy_config,
+ [RTL_GIGA_MAC_VER_34] = rtl8168e_2_hw_phy_config,
+ [RTL_GIGA_MAC_VER_35] = rtl8168f_1_hw_phy_config,
+ [RTL_GIGA_MAC_VER_36] = rtl8168f_2_hw_phy_config,
+ [RTL_GIGA_MAC_VER_37] = rtl8402_hw_phy_config,
+ [RTL_GIGA_MAC_VER_38] = rtl8411_hw_phy_config,
+ [RTL_GIGA_MAC_VER_39] = rtl8106e_hw_phy_config,
+ [RTL_GIGA_MAC_VER_40] = rtl8168g_1_hw_phy_config,
+ [RTL_GIGA_MAC_VER_42] = rtl8168g_2_hw_phy_config,
+ [RTL_GIGA_MAC_VER_43] = rtl8168g_2_hw_phy_config,
+ [RTL_GIGA_MAC_VER_44] = rtl8168g_2_hw_phy_config,
+ [RTL_GIGA_MAC_VER_46] = rtl8168h_2_hw_phy_config,
+ [RTL_GIGA_MAC_VER_48] = rtl8168h_2_hw_phy_config,
+ [RTL_GIGA_MAC_VER_51] = rtl8168ep_2_hw_phy_config,
+ [RTL_GIGA_MAC_VER_52] = rtl8117_hw_phy_config,
+ [RTL_GIGA_MAC_VER_53] = rtl8117_hw_phy_config,
+ [RTL_GIGA_MAC_VER_61] = rtl8125a_2_hw_phy_config,
+ [RTL_GIGA_MAC_VER_63] = rtl8125b_hw_phy_config,
+ };
+
+ if (phy_configs[ver])
+ phy_configs[ver](tp, phydev);
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-10-31 16:13:22 +0000