drivers/net/r8169.c

   1 /*
   2  * r8169.c: RealTek 8169/8168/8101 ethernet driver.
   3  *
   4  * Copyright (c) 2002 ShuChen <shuchen@realtek.com.tw>
   5  * Copyright (c) 2003 - 2007 Francois Romieu <romieu@fr.zoreil.com>
   6  * Copyright (c) a lot of people too. Please respect their work.
   7  *
   8  * See MAINTAINERS file for support contact information.
   9  */
  10
  11 #include <linux/module.h>
  12 #include <linux/moduleparam.h>
  13 #include <linux/pci.h>
  14 #include <linux/netdevice.h>
  15 #include <linux/etherdevice.h>
  16 #include <linux/delay.h>
  17 #include <linux/ethtool.h>
  18 #include <linux/mii.h>
  19 #include <linux/if_vlan.h>
  20 #include <linux/crc32.h>
  21 #include <linux/in.h>
  22 #include <linux/ip.h>
  23 #include <linux/tcp.h>
  24 #include <linux/init.h>
  25 #include <linux/dma-mapping.h>
  26 #include <linux/pm_runtime.h>
  27 #include <linux/firmware.h>
  28 #include <linux/pci-aspm.h>
  29
  30 #include <asm/system.h>
  31 #include <asm/io.h>
  32 #include <asm/irq.h>
  33
  34 #define RTL8169_VERSION "2.3LK-NAPI"
  35 #define MODULENAME "r8169"
  36 #define PFX MODULENAME ": "
  37
  38 #define FIRMWARE_8168D_1        "rtl_nic/rtl8168d-1.fw"
  39 #define FIRMWARE_8168D_2        "rtl_nic/rtl8168d-2.fw"
  40 #define FIRMWARE_8105E_1        "rtl_nic/rtl8105e-1.fw"
  41
  42 #ifdef RTL8169_DEBUG
  43 #define assert(expr) \
  44         if (!(expr)) {                                  \
  45                 printk( "Assertion failed! %s,%s,%s,line=%d\n", \
  46                 #expr,__FILE__,__func__,__LINE__);              \
  47         }
  48 #define dprintk(fmt, args...) \
  49         do { printk(KERN_DEBUG PFX fmt, ## args); } while (0)
  50 #else
  51 #define assert(expr) do {} while (0)
  52 #define dprintk(fmt, args...)   do {} while (0)
  53 #endif /* RTL8169_DEBUG */
  54
  55 #define R8169_MSG_DEFAULT \
  56         (NETIF_MSG_DRV | NETIF_MSG_PROBE | NETIF_MSG_IFUP | NETIF_MSG_IFDOWN)
  57
  58 #define TX_BUFFS_AVAIL(tp) \
  59         (tp->dirty_tx + NUM_TX_DESC - tp->cur_tx - 1)
  60
  61 /* Maximum number of multicast addresses to filter (vs. Rx-all-multicast).
  62    The RTL chips use a 64 element hash table based on the Ethernet CRC. */
  63 static const int multicast_filter_limit = 32;
  64
  65 /* MAC address length */
  66 #define MAC_ADDR_LEN    6
  67
  68 #define MAX_READ_REQUEST_SHIFT  12
  69 #define RX_FIFO_THRESH  7       /* 7 means NO threshold, Rx buffer level before first PCI xfer. */
  70 #define RX_DMA_BURST    6       /* Maximum PCI burst, '6' is 1024 */
  71 #define TX_DMA_BURST    6       /* Maximum PCI burst, '6' is 1024 */
  72 #define SafeMtu         0x1c20  /* ... actually life sucks beyond ~7k */
  73 #define InterFrameGap   0x03    /* 3 means InterFrameGap = the shortest one */
  74
  75 #define R8169_REGS_SIZE         256
  76 #define R8169_NAPI_WEIGHT       64
  77 #define NUM_TX_DESC     64      /* Number of Tx descriptor registers */
  78 #define NUM_RX_DESC     256     /* Number of Rx descriptor registers */
  79 #define RX_BUF_SIZE     1536    /* Rx Buffer size */
  80 #define R8169_TX_RING_BYTES     (NUM_TX_DESC * sizeof(struct TxDesc))
  81 #define R8169_RX_RING_BYTES     (NUM_RX_DESC * sizeof(struct RxDesc))
  82
  83 #define RTL8169_TX_TIMEOUT      (6*HZ)
  84 #define RTL8169_PHY_TIMEOUT     (10*HZ)
  85
  86 #define RTL_EEPROM_SIG          cpu_to_le32(0x8129)
  87 #define RTL_EEPROM_SIG_MASK     cpu_to_le32(0xffff)
  88 #define RTL_EEPROM_SIG_ADDR     0x0000
  89
  90 /* write/read MMIO register */
  91 #define RTL_W8(reg, val8)       writeb ((val8), ioaddr + (reg))
  92 #define RTL_W16(reg, val16)     writew ((val16), ioaddr + (reg))
  93 #define RTL_W32(reg, val32)     writel ((val32), ioaddr + (reg))
  94 #define RTL_R8(reg)             readb (ioaddr + (reg))
  95 #define RTL_R16(reg)            readw (ioaddr + (reg))
  96 #define RTL_R32(reg)            readl (ioaddr + (reg))
  97
  98 enum mac_version {
  99         RTL_GIGA_MAC_NONE   = 0x00,
 100         RTL_GIGA_MAC_VER_01 = 0x01, // 8169
 101         RTL_GIGA_MAC_VER_02 = 0x02, // 8169S
 102         RTL_GIGA_MAC_VER_03 = 0x03, // 8110S
 103         RTL_GIGA_MAC_VER_04 = 0x04, // 8169SB
 104         RTL_GIGA_MAC_VER_05 = 0x05, // 8110SCd
 105         RTL_GIGA_MAC_VER_06 = 0x06, // 8110SCe
 106         RTL_GIGA_MAC_VER_07 = 0x07, // 8102e
 107         RTL_GIGA_MAC_VER_08 = 0x08, // 8102e
 108         RTL_GIGA_MAC_VER_09 = 0x09, // 8102e
 109         RTL_GIGA_MAC_VER_10 = 0x0a, // 8101e
 110         RTL_GIGA_MAC_VER_11 = 0x0b, // 8168Bb
 111         RTL_GIGA_MAC_VER_12 = 0x0c, // 8168Be
 112         RTL_GIGA_MAC_VER_13 = 0x0d, // 8101Eb
 113         RTL_GIGA_MAC_VER_14 = 0x0e, // 8101 ?
 114         RTL_GIGA_MAC_VER_15 = 0x0f, // 8101 ?
 115         RTL_GIGA_MAC_VER_16 = 0x11, // 8101Ec
 116         RTL_GIGA_MAC_VER_17 = 0x10, // 8168Bf
 117         RTL_GIGA_MAC_VER_18 = 0x12, // 8168CP
 118         RTL_GIGA_MAC_VER_19 = 0x13, // 8168C
 119         RTL_GIGA_MAC_VER_20 = 0x14, // 8168C
 120         RTL_GIGA_MAC_VER_21 = 0x15, // 8168C
 121         RTL_GIGA_MAC_VER_22 = 0x16, // 8168C
 122         RTL_GIGA_MAC_VER_23 = 0x17, // 8168CP
 123         RTL_GIGA_MAC_VER_24 = 0x18, // 8168CP
 124         RTL_GIGA_MAC_VER_25 = 0x19, // 8168D
 125         RTL_GIGA_MAC_VER_26 = 0x1a, // 8168D
 126         RTL_GIGA_MAC_VER_27 = 0x1b, // 8168DP
 127         RTL_GIGA_MAC_VER_28 = 0x1c, // 8168DP
 128         RTL_GIGA_MAC_VER_29 = 0x1d, // 8105E
 129         RTL_GIGA_MAC_VER_30 = 0x1e, // 8105E
 130 };
 131
 132 #define _R(NAME,MAC,MASK) \
 133         { .name = NAME, .mac_version = MAC, .RxConfigMask = MASK }
 134
 135 static const struct {
 136         const char *name;
 137         u8 mac_version;
 138         u32 RxConfigMask;       /* Clears the bits supported by this chip */
 139 } rtl_chip_info[] = {
 140         _R("RTL8169",           RTL_GIGA_MAC_VER_01, 0xff7e1880), // 8169
 141         _R("RTL8169s",          RTL_GIGA_MAC_VER_02, 0xff7e1880), // 8169S
 142         _R("RTL8110s",          RTL_GIGA_MAC_VER_03, 0xff7e1880), // 8110S
 143         _R("RTL8169sb/8110sb",  RTL_GIGA_MAC_VER_04, 0xff7e1880), // 8169SB
 144         _R("RTL8169sc/8110sc",  RTL_GIGA_MAC_VER_05, 0xff7e1880), // 8110SCd
 145         _R("RTL8169sc/8110sc",  RTL_GIGA_MAC_VER_06, 0xff7e1880), // 8110SCe
 146         _R("RTL8102e",          RTL_GIGA_MAC_VER_07, 0xff7e1880), // PCI-E
 147         _R("RTL8102e",          RTL_GIGA_MAC_VER_08, 0xff7e1880), // PCI-E
 148         _R("RTL8102e",          RTL_GIGA_MAC_VER_09, 0xff7e1880), // PCI-E
 149         _R("RTL8101e",          RTL_GIGA_MAC_VER_10, 0xff7e1880), // PCI-E
 150         _R("RTL8168b/8111b",    RTL_GIGA_MAC_VER_11, 0xff7e1880), // PCI-E
 151         _R("RTL8168b/8111b",    RTL_GIGA_MAC_VER_12, 0xff7e1880), // PCI-E
 152         _R("RTL8101e",          RTL_GIGA_MAC_VER_13, 0xff7e1880), // PCI-E 8139
 153         _R("RTL8100e",          RTL_GIGA_MAC_VER_14, 0xff7e1880), // PCI-E 8139
 154         _R("RTL8100e",          RTL_GIGA_MAC_VER_15, 0xff7e1880), // PCI-E 8139
 155         _R("RTL8168b/8111b",    RTL_GIGA_MAC_VER_17, 0xff7e1880), // PCI-E
 156         _R("RTL8101e",          RTL_GIGA_MAC_VER_16, 0xff7e1880), // PCI-E
 157         _R("RTL8168cp/8111cp",  RTL_GIGA_MAC_VER_18, 0xff7e1880), // PCI-E
 158         _R("RTL8168c/8111c",    RTL_GIGA_MAC_VER_19, 0xff7e1880), // PCI-E
 159         _R("RTL8168c/8111c",    RTL_GIGA_MAC_VER_20, 0xff7e1880), // PCI-E
 160         _R("RTL8168c/8111c",    RTL_GIGA_MAC_VER_21, 0xff7e1880), // PCI-E
 161         _R("RTL8168c/8111c",    RTL_GIGA_MAC_VER_22, 0xff7e1880), // PCI-E
 162         _R("RTL8168cp/8111cp",  RTL_GIGA_MAC_VER_23, 0xff7e1880), // PCI-E
 163         _R("RTL8168cp/8111cp",  RTL_GIGA_MAC_VER_24, 0xff7e1880), // PCI-E
 164         _R("RTL8168d/8111d",    RTL_GIGA_MAC_VER_25, 0xff7e1880), // PCI-E
 165         _R("RTL8168d/8111d",    RTL_GIGA_MAC_VER_26, 0xff7e1880), // PCI-E
 166         _R("RTL8168dp/8111dp",  RTL_GIGA_MAC_VER_27, 0xff7e1880), // PCI-E
 167         _R("RTL8168dp/8111dp",  RTL_GIGA_MAC_VER_28, 0xff7e1880), // PCI-E
 168         _R("RTL8105e",          RTL_GIGA_MAC_VER_29, 0xff7e1880), // PCI-E
 169         _R("RTL8105e",          RTL_GIGA_MAC_VER_30, 0xff7e1880)  // PCI-E
 170 };
 171 #undef _R
 172
 173 static const struct rtl_firmware_info {
 174         int mac_version;
 175         const char *fw_name;
 176 } rtl_firmware_infos[] = {
 177         { .mac_version = RTL_GIGA_MAC_VER_25, .fw_name = FIRMWARE_8168D_1 },
 178         { .mac_version = RTL_GIGA_MAC_VER_26, .fw_name = FIRMWARE_8168D_2 },
 179         { .mac_version = RTL_GIGA_MAC_VER_29, .fw_name = FIRMWARE_8105E_1 },
 180         { .mac_version = RTL_GIGA_MAC_VER_30, .fw_name = FIRMWARE_8105E_1 }
 181 };
 182
 183 enum cfg_version {
 184         RTL_CFG_0 = 0x00,
 185         RTL_CFG_1,
 186         RTL_CFG_2
 187 };
 188
 189 static void rtl_hw_start_8169(struct net_device *);
 190 static void rtl_hw_start_8168(struct net_device *);
 191 static void rtl_hw_start_8101(struct net_device *);
 192
 193 static DEFINE_PCI_DEVICE_TABLE(rtl8169_pci_tbl) = {
 194         { PCI_DEVICE(PCI_VENDOR_ID_REALTEK,     0x8129), 0, 0, RTL_CFG_0 },
 195         { PCI_DEVICE(PCI_VENDOR_ID_REALTEK,     0x8136), 0, 0, RTL_CFG_2 },
 196         { PCI_DEVICE(PCI_VENDOR_ID_REALTEK,     0x8167), 0, 0, RTL_CFG_0 },
 197         { PCI_DEVICE(PCI_VENDOR_ID_REALTEK,     0x8168), 0, 0, RTL_CFG_1 },
 198         { PCI_DEVICE(PCI_VENDOR_ID_REALTEK,     0x8169), 0, 0, RTL_CFG_0 },
 199         { PCI_DEVICE(PCI_VENDOR_ID_DLINK,       0x4300), 0, 0, RTL_CFG_0 },
 200         { PCI_DEVICE(PCI_VENDOR_ID_AT,          0xc107), 0, 0, RTL_CFG_0 },
 201         { PCI_DEVICE(0x16ec,                    0x0116), 0, 0, RTL_CFG_0 },
 202         { PCI_VENDOR_ID_LINKSYS,                0x1032,
 203                 PCI_ANY_ID, 0x0024, 0, 0, RTL_CFG_0 },
 204         { 0x0001,                               0x8168,
 205                 PCI_ANY_ID, 0x2410, 0, 0, RTL_CFG_2 },
 206         {0,},
 207 };
 208
 209 MODULE_DEVICE_TABLE(pci, rtl8169_pci_tbl);
 210
 211 static int rx_buf_sz = 16383;
 212 static int use_dac;
 213 static struct {
 214         u32 msg_enable;
 215 } debug = { -1 };
 216
 217 enum rtl_registers {
 218         MAC0            = 0,    /* Ethernet hardware address. */
 219         MAC4            = 4,
 220         MAR0            = 8,    /* Multicast filter. */
 221         CounterAddrLow          = 0x10,
 222         CounterAddrHigh         = 0x14,
 223         TxDescStartAddrLow      = 0x20,
 224         TxDescStartAddrHigh     = 0x24,
 225         TxHDescStartAddrLow     = 0x28,
 226         TxHDescStartAddrHigh    = 0x2c,
 227         FLASH           = 0x30,
 228         ERSR            = 0x36,
 229         ChipCmd         = 0x37,
 230         TxPoll          = 0x38,
 231         IntrMask        = 0x3c,
 232         IntrStatus      = 0x3e,
 233         TxConfig        = 0x40,
 234         RxConfig        = 0x44,
 235         RxMissed        = 0x4c,
 236         Cfg9346         = 0x50,
 237         Config0         = 0x51,
 238         Config1         = 0x52,
 239         Config2         = 0x53,
 240         Config3         = 0x54,
 241         Config4         = 0x55,
 242         Config5         = 0x56,
 243         MultiIntr       = 0x5c,
 244         PHYAR           = 0x60,
 245         PHYstatus       = 0x6c,
 246         RxMaxSize       = 0xda,
 247         CPlusCmd        = 0xe0,
 248         IntrMitigate    = 0xe2,
 249         RxDescAddrLow   = 0xe4,
 250         RxDescAddrHigh  = 0xe8,
 251         EarlyTxThres    = 0xec, /* 8169. Unit of 32 bytes. */
 252
 253 #define NoEarlyTx       0x3f    /* Max value : no early transmit. */
 254
 255         MaxTxPacketSize = 0xec, /* 8101/8168. Unit of 128 bytes. */
 256
 257 #define TxPacketMax     (8064 >> 7)
 258
 259         FuncEvent       = 0xf0,
 260         FuncEventMask   = 0xf4,
 261         FuncPresetState = 0xf8,
 262         FuncForceEvent  = 0xfc,
 263 };
 264
 265 enum rtl8110_registers {
 266         TBICSR                  = 0x64,
 267         TBI_ANAR                = 0x68,
 268         TBI_LPAR                = 0x6a,
 269 };
 270
 271 enum rtl8168_8101_registers {
 272         CSIDR                   = 0x64,
 273         CSIAR                   = 0x68,
 274 #define CSIAR_FLAG                      0x80000000
 275 #define CSIAR_WRITE_CMD                 0x80000000
 276 #define CSIAR_BYTE_ENABLE               0x0f
 277 #define CSIAR_BYTE_ENABLE_SHIFT         12
 278 #define CSIAR_ADDR_MASK                 0x0fff
 279         PMCH                    = 0x6f,
 280         EPHYAR                  = 0x80,
 281 #define EPHYAR_FLAG                     0x80000000
 282 #define EPHYAR_WRITE_CMD                0x80000000
 283 #define EPHYAR_REG_MASK                 0x1f
 284 #define EPHYAR_REG_SHIFT                16
 285 #define EPHYAR_DATA_MASK                0xffff
 286         DLLPR                   = 0xd0,
 287 #define PM_SWITCH                       (1 << 6)
 288         DBG_REG                 = 0xd1,
 289 #define FIX_NAK_1                       (1 << 4)
 290 #define FIX_NAK_2                       (1 << 3)
 291         TWSI                    = 0xd2,
 292         MCU                     = 0xd3,
 293 #define EN_NDP                          (1 << 3)
 294 #define EN_OOB_RESET                    (1 << 2)
 295         EFUSEAR                 = 0xdc,
 296 #define EFUSEAR_FLAG                    0x80000000
 297 #define EFUSEAR_WRITE_CMD               0x80000000
 298 #define EFUSEAR_READ_CMD                0x00000000
 299 #define EFUSEAR_REG_MASK                0x03ff
 300 #define EFUSEAR_REG_SHIFT               8
 301 #define EFUSEAR_DATA_MASK               0xff
 302 };
 303
 304 enum rtl8168_registers {
 305         ERIDR                   = 0x70,
 306         ERIAR                   = 0x74,
 307 #define ERIAR_FLAG                      0x80000000
 308 #define ERIAR_WRITE_CMD                 0x80000000
 309 #define ERIAR_READ_CMD                  0x00000000
 310 #define ERIAR_ADDR_BYTE_ALIGN           4
 311 #define ERIAR_EXGMAC                    0
 312 #define ERIAR_MSIX                      1
 313 #define ERIAR_ASF                       2
 314 #define ERIAR_TYPE_SHIFT                16
 315 #define ERIAR_BYTEEN                    0x0f
 316 #define ERIAR_BYTEEN_SHIFT              12
 317         EPHY_RXER_NUM           = 0x7c,
 318         OCPDR                   = 0xb0, /* OCP GPHY access */
 319 #define OCPDR_WRITE_CMD                 0x80000000
 320 #define OCPDR_READ_CMD                  0x00000000
 321 #define OCPDR_REG_MASK                  0x7f
 322 #define OCPDR_GPHY_REG_SHIFT            16
 323 #define OCPDR_DATA_MASK                 0xffff
 324         OCPAR                   = 0xb4,
 325 #define OCPAR_FLAG                      0x80000000
 326 #define OCPAR_GPHY_WRITE_CMD            0x8000f060
 327 #define OCPAR_GPHY_READ_CMD             0x0000f060
 328         RDSAR1                  = 0xd0  /* 8168c only. Undocumented on 8168dp */
 329 };
 330
 331 enum rtl_register_content {
 332         /* InterruptStatusBits */
 333         SYSErr          = 0x8000,
 334         PCSTimeout      = 0x4000,
 335         SWInt           = 0x0100,
 336         TxDescUnavail   = 0x0080,
 337         RxFIFOOver      = 0x0040,
 338         LinkChg         = 0x0020,
 339         RxOverflow      = 0x0010,
 340         TxErr           = 0x0008,
 341         TxOK            = 0x0004,
 342         RxErr           = 0x0002,
 343         RxOK            = 0x0001,
 344
 345         /* RxStatusDesc */
 346         RxFOVF  = (1 << 23),
 347         RxRWT   = (1 << 22),
 348         RxRES   = (1 << 21),
 349         RxRUNT  = (1 << 20),
 350         RxCRC   = (1 << 19),
 351
 352         /* ChipCmdBits */
 353         CmdReset        = 0x10,
 354         CmdRxEnb        = 0x08,
 355         CmdTxEnb        = 0x04,
 356         RxBufEmpty      = 0x01,
 357
 358         /* TXPoll register p.5 */
 359         HPQ             = 0x80,         /* Poll cmd on the high prio queue */
 360         NPQ             = 0x40,         /* Poll cmd on the low prio queue */
 361         FSWInt          = 0x01,         /* Forced software interrupt */
 362
 363         /* Cfg9346Bits */
 364         Cfg9346_Lock    = 0x00,
 365         Cfg9346_Unlock  = 0xc0,
 366
 367         /* rx_mode_bits */
 368         AcceptErr       = 0x20,
 369         AcceptRunt      = 0x10,
 370         AcceptBroadcast = 0x08,
 371         AcceptMulticast = 0x04,
 372         AcceptMyPhys    = 0x02,
 373         AcceptAllPhys   = 0x01,
 374
 375         /* RxConfigBits */
 376         RxCfgFIFOShift  = 13,
 377         RxCfgDMAShift   =  8,
 378
 379         /* TxConfigBits */
 380         TxInterFrameGapShift = 24,
 381         TxDMAShift = 8, /* DMA burst value (0-7) is shift this many bits */
 382
 383         /* Config1 register p.24 */
 384         LEDS1           = (1 << 7),
 385         LEDS0           = (1 << 6),
 386         MSIEnable       = (1 << 5),     /* Enable Message Signaled Interrupt */
 387         Speed_down      = (1 << 4),
 388         MEMMAP          = (1 << 3),
 389         IOMAP           = (1 << 2),
 390         VPD             = (1 << 1),
 391         PMEnable        = (1 << 0),     /* Power Management Enable */
 392
 393         /* Config2 register p. 25 */
 394         PCI_Clock_66MHz = 0x01,
 395         PCI_Clock_33MHz = 0x00,
 396
 397         /* Config3 register p.25 */
 398         MagicPacket     = (1 << 5),     /* Wake up when receives a Magic Packet */
 399         LinkUp          = (1 << 4),     /* Wake up when the cable connection is re-established */
 400         Beacon_en       = (1 << 0),     /* 8168 only. Reserved in the 8168b */
 401
 402         /* Config5 register p.27 */
 403         BWF             = (1 << 6),     /* Accept Broadcast wakeup frame */
 404         MWF             = (1 << 5),     /* Accept Multicast wakeup frame */
 405         UWF             = (1 << 4),     /* Accept Unicast wakeup frame */
 406         LanWake         = (1 << 1),     /* LanWake enable/disable */
 407         PMEStatus       = (1 << 0),     /* PME status can be reset by PCI RST# */
 408
 409         /* TBICSR p.28 */
 410         TBIReset        = 0x80000000,
 411         TBILoopback     = 0x40000000,
 412         TBINwEnable     = 0x20000000,
 413         TBINwRestart    = 0x10000000,
 414         TBILinkOk       = 0x02000000,
 415         TBINwComplete   = 0x01000000,
 416
 417         /* CPlusCmd p.31 */
 418         EnableBist      = (1 << 15),    // 8168 8101
 419         Mac_dbgo_oe     = (1 << 14),    // 8168 8101
 420         Normal_mode     = (1 << 13),    // unused
 421         Force_half_dup  = (1 << 12),    // 8168 8101
 422         Force_rxflow_en = (1 << 11),    // 8168 8101
 423         Force_txflow_en = (1 << 10),    // 8168 8101
 424         Cxpl_dbg_sel    = (1 << 9),     // 8168 8101
 425         ASF             = (1 << 8),     // 8168 8101
 426         PktCntrDisable  = (1 << 7),     // 8168 8101
 427         Mac_dbgo_sel    = 0x001c,       // 8168
 428         RxVlan          = (1 << 6),
 429         RxChkSum        = (1 << 5),
 430         PCIDAC          = (1 << 4),
 431         PCIMulRW        = (1 << 3),
 432         INTT_0          = 0x0000,       // 8168
 433         INTT_1          = 0x0001,       // 8168
 434         INTT_2          = 0x0002,       // 8168
 435         INTT_3          = 0x0003,       // 8168
 436
 437         /* rtl8169_PHYstatus */
 438         TBI_Enable      = 0x80,
 439         TxFlowCtrl      = 0x40,
 440         RxFlowCtrl      = 0x20,
 441         _1000bpsF       = 0x10,
 442         _100bps         = 0x08,
 443         _10bps          = 0x04,
 444         LinkStatus      = 0x02,
 445         FullDup         = 0x01,
 446
 447         /* _TBICSRBit */
 448         TBILinkOK       = 0x02000000,
 449
 450         /* DumpCounterCommand */
 451         CounterDump     = 0x8,
 452 };
 453
 454 enum desc_status_bit {
 455         DescOwn         = (1 << 31), /* Descriptor is owned by NIC */
 456         RingEnd         = (1 << 30), /* End of descriptor ring */
 457         FirstFrag       = (1 << 29), /* First segment of a packet */
 458         LastFrag        = (1 << 28), /* Final segment of a packet */
 459
 460         /* Tx private */
 461         LargeSend       = (1 << 27), /* TCP Large Send Offload (TSO) */
 462         MSSShift        = 16,        /* MSS value position */
 463         MSSMask         = 0xfff,     /* MSS value + LargeSend bit: 12 bits */
 464         IPCS            = (1 << 18), /* Calculate IP checksum */
 465         UDPCS           = (1 << 17), /* Calculate UDP/IP checksum */
 466         TCPCS           = (1 << 16), /* Calculate TCP/IP checksum */
 467         TxVlanTag       = (1 << 17), /* Add VLAN tag */
 468
 469         /* Rx private */
 470         PID1            = (1 << 18), /* Protocol ID bit 1/2 */
 471         PID0            = (1 << 17), /* Protocol ID bit 2/2 */
 472
 473 #define RxProtoUDP      (PID1)
 474 #define RxProtoTCP      (PID0)
 475 #define RxProtoIP       (PID1 | PID0)
 476 #define RxProtoMask     RxProtoIP
 477
 478         IPFail          = (1 << 16), /* IP checksum failed */
 479         UDPFail         = (1 << 15), /* UDP/IP checksum failed */
 480         TCPFail         = (1 << 14), /* TCP/IP checksum failed */
 481         RxVlanTag       = (1 << 16), /* VLAN tag available */
 482 };
 483
 484 #define RsvdMask        0x3fffc000
 485
 486 struct TxDesc {
 487         __le32 opts1;
 488         __le32 opts2;
 489         __le64 addr;
 490 };
 491
 492 struct RxDesc {
 493         __le32 opts1;
 494         __le32 opts2;
 495         __le64 addr;
 496 };
 497
 498 struct ring_info {
 499         struct sk_buff  *skb;
 500         u32             len;
 501         u8              __pad[sizeof(void *) - sizeof(u32)];
 502 };
 503
 504 enum features {
 505         RTL_FEATURE_WOL         = (1 << 0),
 506         RTL_FEATURE_MSI         = (1 << 1),
 507         RTL_FEATURE_GMII        = (1 << 2),
 508 };
 509
 510 struct rtl8169_counters {
 511         __le64  tx_packets;
 512         __le64  rx_packets;
 513         __le64  tx_errors;
 514         __le32  rx_errors;
 515         __le16  rx_missed;
 516         __le16  align_errors;
 517         __le32  tx_one_collision;
 518         __le32  tx_multi_collision;
 519         __le64  rx_unicast;
 520         __le64  rx_broadcast;
 521         __le32  rx_multicast;
 522         __le16  tx_aborted;
 523         __le16  tx_underun;
 524 };
 525
 526 struct rtl8169_private {
 527         void __iomem *mmio_addr;        /* memory map physical address */
 528         struct pci_dev *pci_dev;        /* Index of PCI device */
 529         struct net_device *dev;
 530         struct napi_struct napi;
 531         spinlock_t lock;                /* spin lock flag */
 532         u32 msg_enable;
 533         int chipset;
 534         int mac_version;
 535         u32 cur_rx; /* Index into the Rx descriptor buffer of next Rx pkt. */
 536         u32 cur_tx; /* Index into the Tx descriptor buffer of next Rx pkt. */
 537         u32 dirty_rx;
 538         u32 dirty_tx;
 539         struct TxDesc *TxDescArray;     /* 256-aligned Tx descriptor ring */
 540         struct RxDesc *RxDescArray;     /* 256-aligned Rx descriptor ring */
 541         dma_addr_t TxPhyAddr;
 542         dma_addr_t RxPhyAddr;
 543         void *Rx_databuff[NUM_RX_DESC]; /* Rx data buffers */
 544         struct ring_info tx_skb[NUM_TX_DESC];   /* Tx data buffers */
 545         struct timer_list timer;
 546         u16 cp_cmd;
 547         u16 intr_event;
 548         u16 napi_event;
 549         u16 intr_mask;
 550         int phy_1000_ctrl_reg;
 551
 552         struct mdio_ops {
 553                 void (*write)(void __iomem *, int, int);
 554                 int (*read)(void __iomem *, int);
 555         } mdio_ops;
 556
 557         struct pll_power_ops {
 558                 void (*down)(struct rtl8169_private *);
 559                 void (*up)(struct rtl8169_private *);
 560         } pll_power_ops;
 561
 562         int (*set_speed)(struct net_device *, u8 aneg, u16 sp, u8 dpx, u32 adv);
 563         int (*get_settings)(struct net_device *, struct ethtool_cmd *);
 564         void (*phy_reset_enable)(struct rtl8169_private *tp);
 565         void (*hw_start)(struct net_device *);
 566         unsigned int (*phy_reset_pending)(struct rtl8169_private *tp);
 567         unsigned int (*link_ok)(void __iomem *);
 568         int (*do_ioctl)(struct rtl8169_private *tp, struct mii_ioctl_data *data, int cmd);
 569         int pcie_cap;
 570         struct delayed_work task;
 571         unsigned features;
 572
 573         struct mii_if_info mii;
 574         struct rtl8169_counters counters;
 575         u32 saved_wolopts;
 576
 577         const struct firmware *fw;
 578 #define RTL_FIRMWARE_UNKNOWN    ERR_PTR(-EAGAIN);
 579 };
 580
 581 MODULE_AUTHOR("Realtek and the Linux r8169 crew <netdev@vger.kernel.org>");
 582 MODULE_DESCRIPTION("RealTek RTL-8169 Gigabit Ethernet driver");
 583 module_param(use_dac, int, 0);
 584 MODULE_PARM_DESC(use_dac, "Enable PCI DAC. Unsafe on 32 bit PCI slot.");
 585 module_param_named(debug, debug.msg_enable, int, 0);
 586 MODULE_PARM_DESC(debug, "Debug verbosity level (0=none, ..., 16=all)");
 587 MODULE_LICENSE("GPL");
 588 MODULE_VERSION(RTL8169_VERSION);
 589 MODULE_FIRMWARE(FIRMWARE_8168D_1);
 590 MODULE_FIRMWARE(FIRMWARE_8168D_2);
 591 MODULE_FIRMWARE(FIRMWARE_8105E_1);
 592
 593 static int rtl8169_open(struct net_device *dev);
 594 static netdev_tx_t rtl8169_start_xmit(struct sk_buff *skb,
 595                                       struct net_device *dev);
 596 static irqreturn_t rtl8169_interrupt(int irq, void *dev_instance);
 597 static int rtl8169_init_ring(struct net_device *dev);
 598 static void rtl_hw_start(struct net_device *dev);
 599 static int rtl8169_close(struct net_device *dev);
 600 static void rtl_set_rx_mode(struct net_device *dev);
 601 static void rtl8169_tx_timeout(struct net_device *dev);
 602 static struct net_device_stats *rtl8169_get_stats(struct net_device *dev);
 603 static int rtl8169_rx_interrupt(struct net_device *, struct rtl8169_private *,
 604                                 void __iomem *, u32 budget);
 605 static int rtl8169_change_mtu(struct net_device *dev, int new_mtu);
 606 static void rtl8169_down(struct net_device *dev);
 607 static void rtl8169_rx_clear(struct rtl8169_private *tp);
 608 static int rtl8169_poll(struct napi_struct *napi, int budget);
 609
 610 static const unsigned int rtl8169_rx_config =
 611         (RX_FIFO_THRESH << RxCfgFIFOShift) | (RX_DMA_BURST << RxCfgDMAShift);
 612
 613 static u32 ocp_read(struct rtl8169_private *tp, u8 mask, u16 reg)
 614 {
 615         void __iomem *ioaddr = tp->mmio_addr;
 616         int i;
 617
 618         RTL_W32(OCPAR, ((u32)mask & 0x0f) << 12 | (reg & 0x0fff));
 619         for (i = 0; i < 20; i++) {
 620                 udelay(100);
 621                 if (RTL_R32(OCPAR) & OCPAR_FLAG)
 622                         break;
 623         }
 624         return RTL_R32(OCPDR);
 625 }
 626
 627 static void ocp_write(struct rtl8169_private *tp, u8 mask, u16 reg, u32 data)
 628 {
 629         void __iomem *ioaddr = tp->mmio_addr;
 630         int i;
 631
 632         RTL_W32(OCPDR, data);
 633         RTL_W32(OCPAR, OCPAR_FLAG | ((u32)mask & 0x0f) << 12 | (reg & 0x0fff));
 634         for (i = 0; i < 20; i++) {
 635                 udelay(100);
 636                 if ((RTL_R32(OCPAR) & OCPAR_FLAG) == 0)
 637                         break;
 638         }
 639 }
 640
 641 static void rtl8168_oob_notify(struct rtl8169_private *tp, u8 cmd)
 642 {
 643         void __iomem *ioaddr = tp->mmio_addr;
 644         int i;
 645
 646         RTL_W8(ERIDR, cmd);
 647         RTL_W32(ERIAR, 0x800010e8);
 648         msleep(2);
 649         for (i = 0; i < 5; i++) {
 650                 udelay(100);
 651                 if (!(RTL_R32(ERIDR) & ERIAR_FLAG))
 652                         break;
 653         }
 654
 655         ocp_write(tp, 0x1, 0x30, 0x00000001);
 656 }
 657
 658 #define OOB_CMD_RESET           0x00
 659 #define OOB_CMD_DRIVER_START    0x05
 660 #define OOB_CMD_DRIVER_STOP     0x06
 661
 662 static void rtl8168_driver_start(struct rtl8169_private *tp)
 663 {
 664         int i;
 665
 666         rtl8168_oob_notify(tp, OOB_CMD_DRIVER_START);
 667
 668         for (i = 0; i < 10; i++) {
 669                 msleep(10);
 670                 if (ocp_read(tp, 0x0f, 0x0010) & 0x00000800)
 671                         break;
 672         }
 673 }
 674
 675 static void rtl8168_driver_stop(struct rtl8169_private *tp)
 676 {
 677         int i;
 678
 679         rtl8168_oob_notify(tp, OOB_CMD_DRIVER_STOP);
 680
 681         for (i = 0; i < 10; i++) {
 682                 msleep(10);
 683                 if ((ocp_read(tp, 0x0f, 0x0010) & 0x00000800) == 0)
 684                         break;
 685         }
 686 }
 687
 688
 689 static void r8169_mdio_write(void __iomem *ioaddr, int reg_addr, int value)
 690 {
 691         int i;
 692
 693         RTL_W32(PHYAR, 0x80000000 | (reg_addr & 0x1f) << 16 | (value & 0xffff));
 694
 695         for (i = 20; i > 0; i--) {
 696                 /*
 697                  * Check if the RTL8169 has completed writing to the specified
 698                  * MII register.
 699                  */
 700                 if (!(RTL_R32(PHYAR) & 0x80000000))
 701                         break;
 702                 udelay(25);
 703         }
 704         /*
 705          * According to hardware specs a 20us delay is required after write
 706          * complete indication, but before sending next command.
 707          */
 708         udelay(20);
 709 }
 710
 711 static int r8169_mdio_read(void __iomem *ioaddr, int reg_addr)
 712 {
 713         int i, value = -1;
 714
 715         RTL_W32(PHYAR, 0x0 | (reg_addr & 0x1f) << 16);
 716
 717         for (i = 20; i > 0; i--) {
 718                 /*
 719                  * Check if the RTL8169 has completed retrieving data from
 720                  * the specified MII register.
 721                  */
 722                 if (RTL_R32(PHYAR) & 0x80000000) {
 723                         value = RTL_R32(PHYAR) & 0xffff;
 724                         break;
 725                 }
 726                 udelay(25);
 727         }
 728         /*
 729          * According to hardware specs a 20us delay is required after read
 730          * complete indication, but before sending next command.
 731          */
 732         udelay(20);
 733
 734         return value;
 735 }
 736
 737 static void r8168dp_1_mdio_access(void __iomem *ioaddr, int reg_addr, u32 data)
 738 {
 739         int i;
 740
 741         RTL_W32(OCPDR, data |
 742                 ((reg_addr & OCPDR_REG_MASK) << OCPDR_GPHY_REG_SHIFT));
 743         RTL_W32(OCPAR, OCPAR_GPHY_WRITE_CMD);
 744         RTL_W32(EPHY_RXER_NUM, 0);
 745
 746         for (i = 0; i < 100; i++) {
 747                 mdelay(1);
 748                 if (!(RTL_R32(OCPAR) & OCPAR_FLAG))
 749                         break;
 750         }
 751 }
 752
 753 static void r8168dp_1_mdio_write(void __iomem *ioaddr, int reg_addr, int value)
 754 {
 755         r8168dp_1_mdio_access(ioaddr, reg_addr, OCPDR_WRITE_CMD |
 756                 (value & OCPDR_DATA_MASK));
 757 }
 758
 759 static int r8168dp_1_mdio_read(void __iomem *ioaddr, int reg_addr)
 760 {
 761         int i;
 762
 763         r8168dp_1_mdio_access(ioaddr, reg_addr, OCPDR_READ_CMD);
 764
 765         mdelay(1);
 766         RTL_W32(OCPAR, OCPAR_GPHY_READ_CMD);
 767         RTL_W32(EPHY_RXER_NUM, 0);
 768
 769         for (i = 0; i < 100; i++) {
 770                 mdelay(1);
 771                 if (RTL_R32(OCPAR) & OCPAR_FLAG)
 772                         break;
 773         }
 774
 775         return RTL_R32(OCPDR) & OCPDR_DATA_MASK;
 776 }
 777
 778 #define R8168DP_1_MDIO_ACCESS_BIT       0x00020000
 779
 780 static void r8168dp_2_mdio_start(void __iomem *ioaddr)
 781 {
 782         RTL_W32(0xd0, RTL_R32(0xd0) & ~R8168DP_1_MDIO_ACCESS_BIT);
 783 }
 784
 785 static void r8168dp_2_mdio_stop(void __iomem *ioaddr)
 786 {
 787         RTL_W32(0xd0, RTL_R32(0xd0) | R8168DP_1_MDIO_ACCESS_BIT);
 788 }
 789
 790 static void r8168dp_2_mdio_write(void __iomem *ioaddr, int reg_addr, int value)
 791 {
 792         r8168dp_2_mdio_start(ioaddr);
 793
 794         r8169_mdio_write(ioaddr, reg_addr, value);
 795
 796         r8168dp_2_mdio_stop(ioaddr);
 797 }
 798
 799 static int r8168dp_2_mdio_read(void __iomem *ioaddr, int reg_addr)
 800 {
 801         int value;
 802
 803         r8168dp_2_mdio_start(ioaddr);
 804
 805         value = r8169_mdio_read(ioaddr, reg_addr);
 806
 807         r8168dp_2_mdio_stop(ioaddr);
 808
 809         return value;
 810 }
 811
 812 static void rtl_writephy(struct rtl8169_private *tp, int location, u32 val)
 813 {
 814         tp->mdio_ops.write(tp->mmio_addr, location, val);
 815 }
 816
 817 static int rtl_readphy(struct rtl8169_private *tp, int location)
 818 {
 819         return tp->mdio_ops.read(tp->mmio_addr, location);
 820 }
 821
 822 static void rtl_patchphy(struct rtl8169_private *tp, int reg_addr, int value)
 823 {
 824         rtl_writephy(tp, reg_addr, rtl_readphy(tp, reg_addr) | value);
 825 }
 826
 827 static void rtl_w1w0_phy(struct rtl8169_private *tp, int reg_addr, int p, int m)
 828 {
 829         int val;
 830
 831         val = rtl_readphy(tp, reg_addr);
 832         rtl_writephy(tp, reg_addr, (val | p) & ~m);
 833 }
 834
 835 static void rtl_mdio_write(struct net_device *dev, int phy_id, int location,
 836                            int val)
 837 {
 838         struct rtl8169_private *tp = netdev_priv(dev);
 839
 840         rtl_writephy(tp, location, val);
 841 }
 842
 843 static int rtl_mdio_read(struct net_device *dev, int phy_id, int location)
 844 {
 845         struct rtl8169_private *tp = netdev_priv(dev);
 846
 847         return rtl_readphy(tp, location);
 848 }
 849
 850 static void rtl_ephy_write(void __iomem *ioaddr, int reg_addr, int value)
 851 {
 852         unsigned int i;
 853
 854         RTL_W32(EPHYAR, EPHYAR_WRITE_CMD | (value & EPHYAR_DATA_MASK) |
 855                 (reg_addr & EPHYAR_REG_MASK) << EPHYAR_REG_SHIFT);
 856
 857         for (i = 0; i < 100; i++) {
 858                 if (!(RTL_R32(EPHYAR) & EPHYAR_FLAG))
 859                         break;
 860                 udelay(10);
 861         }
 862 }
 863
 864 static u16 rtl_ephy_read(void __iomem *ioaddr, int reg_addr)
 865 {
 866         u16 value = 0xffff;
 867         unsigned int i;
 868
 869         RTL_W32(EPHYAR, (reg_addr & EPHYAR_REG_MASK) << EPHYAR_REG_SHIFT);
 870
 871         for (i = 0; i < 100; i++) {
 872                 if (RTL_R32(EPHYAR) & EPHYAR_FLAG) {
 873                         value = RTL_R32(EPHYAR) & EPHYAR_DATA_MASK;
 874                         break;
 875                 }
 876                 udelay(10);
 877         }
 878
 879         return value;
 880 }
 881
 882 static void rtl_csi_write(void __iomem *ioaddr, int addr, int value)
 883 {
 884         unsigned int i;
 885
 886         RTL_W32(CSIDR, value);
 887         RTL_W32(CSIAR, CSIAR_WRITE_CMD | (addr & CSIAR_ADDR_MASK) |
 888                 CSIAR_BYTE_ENABLE << CSIAR_BYTE_ENABLE_SHIFT);
 889
 890         for (i = 0; i < 100; i++) {
 891                 if (!(RTL_R32(CSIAR) & CSIAR_FLAG))
 892                         break;
 893                 udelay(10);
 894         }
 895 }
 896
 897 static u32 rtl_csi_read(void __iomem *ioaddr, int addr)
 898 {
 899         u32 value = ~0x00;
 900         unsigned int i;
 901
 902         RTL_W32(CSIAR, (addr & CSIAR_ADDR_MASK) |
 903                 CSIAR_BYTE_ENABLE << CSIAR_BYTE_ENABLE_SHIFT);
 904
 905         for (i = 0; i < 100; i++) {
 906                 if (RTL_R32(CSIAR) & CSIAR_FLAG) {
 907                         value = RTL_R32(CSIDR);
 908                         break;
 909                 }
 910                 udelay(10);
 911         }
 912
 913         return value;
 914 }
 915
 916 static u8 rtl8168d_efuse_read(void __iomem *ioaddr, int reg_addr)
 917 {
 918         u8 value = 0xff;
 919         unsigned int i;
 920
 921         RTL_W32(EFUSEAR, (reg_addr & EFUSEAR_REG_MASK) << EFUSEAR_REG_SHIFT);
 922
 923         for (i = 0; i < 300; i++) {
 924                 if (RTL_R32(EFUSEAR) & EFUSEAR_FLAG) {
 925                         value = RTL_R32(EFUSEAR) & EFUSEAR_DATA_MASK;
 926                         break;
 927                 }
 928                 udelay(100);
 929         }
 930
 931         return value;
 932 }
 933
 934 static void rtl8169_irq_mask_and_ack(void __iomem *ioaddr)
 935 {
 936         RTL_W16(IntrMask, 0x0000);
 937
 938         RTL_W16(IntrStatus, 0xffff);
 939 }
 940
 941 static void rtl8169_asic_down(void __iomem *ioaddr)
 942 {
 943         RTL_W8(ChipCmd, 0x00);
 944         rtl8169_irq_mask_and_ack(ioaddr);
 945         RTL_R16(CPlusCmd);
 946 }
 947
 948 static unsigned int rtl8169_tbi_reset_pending(struct rtl8169_private *tp)
 949 {
 950         void __iomem *ioaddr = tp->mmio_addr;
 951
 952         return RTL_R32(TBICSR) & TBIReset;
 953 }
 954
 955 static unsigned int rtl8169_xmii_reset_pending(struct rtl8169_private *tp)
 956 {
 957         return rtl_readphy(tp, MII_BMCR) & BMCR_RESET;
 958 }
 959
 960 static unsigned int rtl8169_tbi_link_ok(void __iomem *ioaddr)
 961 {
 962         return RTL_R32(TBICSR) & TBILinkOk;
 963 }
 964
 965 static unsigned int rtl8169_xmii_link_ok(void __iomem *ioaddr)
 966 {
 967         return RTL_R8(PHYstatus) & LinkStatus;
 968 }
 969
 970 static void rtl8169_tbi_reset_enable(struct rtl8169_private *tp)
 971 {
 972         void __iomem *ioaddr = tp->mmio_addr;
 973
 974         RTL_W32(TBICSR, RTL_R32(TBICSR) | TBIReset);
 975 }
 976
 977 static void rtl8169_xmii_reset_enable(struct rtl8169_private *tp)
 978 {
 979         unsigned int val;
 980
 981         val = rtl_readphy(tp, MII_BMCR) | BMCR_RESET;
 982         rtl_writephy(tp, MII_BMCR, val & 0xffff);
 983 }
 984
 985 static void __rtl8169_check_link_status(struct net_device *dev,
 986                                       struct rtl8169_private *tp,
 987                                       void __iomem *ioaddr,
 988                                       bool pm)
 989 {
 990         unsigned long flags;
 991
 992         spin_lock_irqsave(&tp->lock, flags);
 993         if (tp->link_ok(ioaddr)) {
 994                 /* This is to cancel a scheduled suspend if there's one. */
 995                 if (pm)
 996                         pm_request_resume(&tp->pci_dev->dev);
 997                 netif_carrier_on(dev);
 998                 if (net_ratelimit())
 999                         netif_info(tp, ifup, dev, "link up\n");
1000         } else {
1001                 netif_carrier_off(dev);
1002                 netif_info(tp, ifdown, dev, "link down\n");
1003                 if (pm)
1004                         pm_schedule_suspend(&tp->pci_dev->dev, 100);
1005         }
1006         spin_unlock_irqrestore(&tp->lock, flags);
1007 }
1008
1009 static void rtl8169_check_link_status(struct net_device *dev,
1010                                       struct rtl8169_private *tp,
1011                                       void __iomem *ioaddr)
1012 {
1013         __rtl8169_check_link_status(dev, tp, ioaddr, false);
1014 }
1015
1016 #define WAKE_ANY (WAKE_PHY | WAKE_MAGIC | WAKE_UCAST | WAKE_BCAST | WAKE_MCAST)
1017
1018 static u32 __rtl8169_get_wol(struct rtl8169_private *tp)
1019 {
1020         void __iomem *ioaddr = tp->mmio_addr;
1021         u8 options;
1022         u32 wolopts = 0;
1023
1024         options = RTL_R8(Config1);
1025         if (!(options & PMEnable))
1026                 return 0;
1027
1028         options = RTL_R8(Config3);
1029         if (options & LinkUp)
1030                 wolopts |= WAKE_PHY;
1031         if (options & MagicPacket)
1032                 wolopts |= WAKE_MAGIC;
1033
1034         options = RTL_R8(Config5);
1035         if (options & UWF)
1036                 wolopts |= WAKE_UCAST;
1037         if (options & BWF)
1038                 wolopts |= WAKE_BCAST;
1039         if (options & MWF)
1040                 wolopts |= WAKE_MCAST;
1041
1042         return wolopts;
1043 }
1044
1045 static void rtl8169_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
1046 {
1047         struct rtl8169_private *tp = netdev_priv(dev);
1048
1049         spin_lock_irq(&tp->lock);
1050
1051         wol->supported = WAKE_ANY;
1052         wol->wolopts = __rtl8169_get_wol(tp);
1053
1054         spin_unlock_irq(&tp->lock);
1055 }
1056
1057 static void __rtl8169_set_wol(struct rtl8169_private *tp, u32 wolopts)
1058 {
1059         void __iomem *ioaddr = tp->mmio_addr;
1060         unsigned int i;
1061         static const struct {
1062                 u32 opt;
1063                 u16 reg;
1064                 u8  mask;
1065         } cfg[] = {
1066                 { WAKE_ANY,   Config1, PMEnable },
1067                 { WAKE_PHY,   Config3, LinkUp },
1068                 { WAKE_MAGIC, Config3, MagicPacket },
1069                 { WAKE_UCAST, Config5, UWF },
1070                 { WAKE_BCAST, Config5, BWF },
1071                 { WAKE_MCAST, Config5, MWF },
1072                 { WAKE_ANY,   Config5, LanWake }
1073         };
1074
1075         RTL_W8(Cfg9346, Cfg9346_Unlock);
1076
1077         for (i = 0; i < ARRAY_SIZE(cfg); i++) {
1078                 u8 options = RTL_R8(cfg[i].reg) & ~cfg[i].mask;
1079                 if (wolopts & cfg[i].opt)
1080                         options |= cfg[i].mask;
1081                 RTL_W8(cfg[i].reg, options);
1082         }
1083
1084         RTL_W8(Cfg9346, Cfg9346_Lock);
1085 }
1086
1087 static int rtl8169_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
1088 {
1089         struct rtl8169_private *tp = netdev_priv(dev);
1090
1091         spin_lock_irq(&tp->lock);
1092
1093         if (wol->wolopts)
1094                 tp->features |= RTL_FEATURE_WOL;
1095         else
1096                 tp->features &= ~RTL_FEATURE_WOL;
1097         __rtl8169_set_wol(tp, wol->wolopts);
1098         spin_unlock_irq(&tp->lock);
1099
1100         device_set_wakeup_enable(&tp->pci_dev->dev, wol->wolopts);
1101
1102         return 0;
1103 }
1104
1105 static void rtl8169_get_drvinfo(struct net_device *dev,
1106                                 struct ethtool_drvinfo *info)
1107 {
1108         struct rtl8169_private *tp = netdev_priv(dev);
1109
1110         strcpy(info->driver, MODULENAME);
1111         strcpy(info->version, RTL8169_VERSION);
1112         strcpy(info->bus_info, pci_name(tp->pci_dev));
1113 }
1114
1115 static int rtl8169_get_regs_len(struct net_device *dev)
1116 {
1117         return R8169_REGS_SIZE;
1118 }
1119
1120 static int rtl8169_set_speed_tbi(struct net_device *dev,
1121                                  u8 autoneg, u16 speed, u8 duplex, u32 ignored)
1122 {
1123         struct rtl8169_private *tp = netdev_priv(dev);
1124         void __iomem *ioaddr = tp->mmio_addr;
1125         int ret = 0;
1126         u32 reg;
1127
1128         reg = RTL_R32(TBICSR);
1129         if ((autoneg == AUTONEG_DISABLE) && (speed == SPEED_1000) &&
1130             (duplex == DUPLEX_FULL)) {
1131                 RTL_W32(TBICSR, reg & ~(TBINwEnable | TBINwRestart));
1132         } else if (autoneg == AUTONEG_ENABLE)
1133                 RTL_W32(TBICSR, reg | TBINwEnable | TBINwRestart);
1134         else {
1135                 netif_warn(tp, link, dev,
1136                            "incorrect speed setting refused in TBI mode\n");
1137                 ret = -EOPNOTSUPP;
1138         }
1139
1140         return ret;
1141 }
1142
1143 static int rtl8169_set_speed_xmii(struct net_device *dev,
1144                                   u8 autoneg, u16 speed, u8 duplex, u32 adv)
1145 {
1146         struct rtl8169_private *tp = netdev_priv(dev);
1147         int giga_ctrl, bmcr;
1148         int rc = -EINVAL;
1149
1150         rtl_writephy(tp, 0x1f, 0x0000);
1151
1152         if (autoneg == AUTONEG_ENABLE) {
1153                 int auto_nego;
1154
1155                 auto_nego = rtl_readphy(tp, MII_ADVERTISE);
1156                 auto_nego &= ~(ADVERTISE_10HALF | ADVERTISE_10FULL |
1157                                 ADVERTISE_100HALF | ADVERTISE_100FULL);
1158
1159                 if (adv & ADVERTISED_10baseT_Half)
1160                         auto_nego |= ADVERTISE_10HALF;
1161                 if (adv & ADVERTISED_10baseT_Full)
1162                         auto_nego |= ADVERTISE_10FULL;
1163                 if (adv & ADVERTISED_100baseT_Half)
1164                         auto_nego |= ADVERTISE_100HALF;
1165                 if (adv & ADVERTISED_100baseT_Full)
1166                         auto_nego |= ADVERTISE_100FULL;
1167
1168                 auto_nego |= ADVERTISE_PAUSE_CAP | ADVERTISE_PAUSE_ASYM;
1169
1170                 giga_ctrl = rtl_readphy(tp, MII_CTRL1000);
1171                 giga_ctrl &= ~(ADVERTISE_1000FULL | ADVERTISE_1000HALF);
1172
1173                 /* The 8100e/8101e/8102e do Fast Ethernet only. */
1174                 if ((tp->mac_version != RTL_GIGA_MAC_VER_07) &&
1175                     (tp->mac_version != RTL_GIGA_MAC_VER_08) &&
1176                     (tp->mac_version != RTL_GIGA_MAC_VER_09) &&
1177                     (tp->mac_version != RTL_GIGA_MAC_VER_10) &&
1178                     (tp->mac_version != RTL_GIGA_MAC_VER_13) &&
1179                     (tp->mac_version != RTL_GIGA_MAC_VER_14) &&
1180                     (tp->mac_version != RTL_GIGA_MAC_VER_15) &&
1181                     (tp->mac_version != RTL_GIGA_MAC_VER_16) &&
1182                     (tp->mac_version != RTL_GIGA_MAC_VER_29) &&
1183                     (tp->mac_version != RTL_GIGA_MAC_VER_30)) {
1184                         if (adv & ADVERTISED_1000baseT_Half)
1185                                 giga_ctrl |= ADVERTISE_1000HALF;
1186                         if (adv & ADVERTISED_1000baseT_Full)
1187                                 giga_ctrl |= ADVERTISE_1000FULL;
1188                 } else if (adv & (ADVERTISED_1000baseT_Half |
1189                                   ADVERTISED_1000baseT_Full)) {
1190                         netif_info(tp, link, dev,
1191                                    "PHY does not support 1000Mbps\n");
1192                         goto out;
1193                 }
1194
1195                 bmcr = BMCR_ANENABLE | BMCR_ANRESTART;
1196
1197                 rtl_writephy(tp, MII_ADVERTISE, auto_nego);
1198                 rtl_writephy(tp, MII_CTRL1000, giga_ctrl);
1199         } else {
1200                 giga_ctrl = 0;
1201
1202                 if (speed == SPEED_10)
1203                         bmcr = 0;
1204                 else if (speed == SPEED_100)
1205                         bmcr = BMCR_SPEED100;
1206                 else
1207                         goto out;
1208
1209                 if (duplex == DUPLEX_FULL)
1210                         bmcr |= BMCR_FULLDPLX;
1211         }
1212
1213         tp->phy_1000_ctrl_reg = giga_ctrl;
1214
1215         rtl_writephy(tp, MII_BMCR, bmcr);
1216
1217         if ((tp->mac_version == RTL_GIGA_MAC_VER_02) ||
1218             (tp->mac_version == RTL_GIGA_MAC_VER_03)) {
1219                 if ((speed == SPEED_100) && (autoneg != AUTONEG_ENABLE)) {
1220                         rtl_writephy(tp, 0x17, 0x2138);
1221                         rtl_writephy(tp, 0x0e, 0x0260);
1222                 } else {
1223                         rtl_writephy(tp, 0x17, 0x2108);
1224                         rtl_writephy(tp, 0x0e, 0x0000);
1225                 }
1226         }
1227
1228         rc = 0;
1229 out:
1230         return rc;
1231 }
1232
1233 static int rtl8169_set_speed(struct net_device *dev,
1234                              u8 autoneg, u16 speed, u8 duplex, u32 advertising)
1235 {
1236         struct rtl8169_private *tp = netdev_priv(dev);
1237         int ret;
1238
1239         ret = tp->set_speed(dev, autoneg, speed, duplex, advertising);
1240
1241         if (netif_running(dev) && (tp->phy_1000_ctrl_reg & ADVERTISE_1000FULL))
1242                 mod_timer(&tp->timer, jiffies + RTL8169_PHY_TIMEOUT);
1243
1244         return ret;
1245 }
1246
1247 static int rtl8169_set_settings(struct net_device *dev, struct ethtool_cmd *cmd)
1248 {
1249         struct rtl8169_private *tp = netdev_priv(dev);
1250         unsigned long flags;
1251         int ret;
1252
1253         spin_lock_irqsave(&tp->lock, flags);
1254         ret = rtl8169_set_speed(dev,
1255                 cmd->autoneg, cmd->speed, cmd->duplex, cmd->advertising);
1256         spin_unlock_irqrestore(&tp->lock, flags);
1257
1258         return ret;
1259 }
1260
1261 static u32 rtl8169_get_rx_csum(struct net_device *dev)
1262 {
1263         struct rtl8169_private *tp = netdev_priv(dev);
1264
1265         return tp->cp_cmd & RxChkSum;
1266 }
1267
1268 static int rtl8169_set_rx_csum(struct net_device *dev, u32 data)
1269 {
1270         struct rtl8169_private *tp = netdev_priv(dev);
1271         void __iomem *ioaddr = tp->mmio_addr;
1272         unsigned long flags;
1273
1274         spin_lock_irqsave(&tp->lock, flags);
1275
1276         if (data)
1277                 tp->cp_cmd |= RxChkSum;
1278         else
1279                 tp->cp_cmd &= ~RxChkSum;
1280
1281         RTL_W16(CPlusCmd, tp->cp_cmd);
1282         RTL_R16(CPlusCmd);
1283
1284         spin_unlock_irqrestore(&tp->lock, flags);
1285
1286         return 0;
1287 }
1288
1289 static inline u32 rtl8169_tx_vlan_tag(struct rtl8169_private *tp,
1290                                       struct sk_buff *skb)
1291 {
1292         return (vlan_tx_tag_present(skb)) ?
1293                 TxVlanTag | swab16(vlan_tx_tag_get(skb)) : 0x00;
1294 }
1295
1296 #define NETIF_F_HW_VLAN_TX_RX   (NETIF_F_HW_VLAN_TX | NETIF_F_HW_VLAN_RX)
1297
1298 static void rtl8169_vlan_mode(struct net_device *dev)
1299 {
1300         struct rtl8169_private *tp = netdev_priv(dev);
1301         void __iomem *ioaddr = tp->mmio_addr;
1302         unsigned long flags;
1303
1304         spin_lock_irqsave(&tp->lock, flags);
1305         if (dev->features & NETIF_F_HW_VLAN_RX)
1306                 tp->cp_cmd |= RxVlan;
1307         else
1308                 tp->cp_cmd &= ~RxVlan;
1309         RTL_W16(CPlusCmd, tp->cp_cmd);
1310         /* PCI commit */
1311         RTL_R16(CPlusCmd);
1312         spin_unlock_irqrestore(&tp->lock, flags);
1313
1314         dev->vlan_features = dev->features &~ NETIF_F_HW_VLAN_TX_RX;
1315 }
1316
1317 static void rtl8169_rx_vlan_tag(struct RxDesc *desc, struct sk_buff *skb)
1318 {
1319         u32 opts2 = le32_to_cpu(desc->opts2);
1320
1321         if (opts2 & RxVlanTag)
1322                 __vlan_hwaccel_put_tag(skb, swab16(opts2 & 0xffff));
1323
1324         desc->opts2 = 0;
1325 }
1326
1327 static int rtl8169_gset_tbi(struct net_device *dev, struct ethtool_cmd *cmd)
1328 {
1329         struct rtl8169_private *tp = netdev_priv(dev);
1330         void __iomem *ioaddr = tp->mmio_addr;
1331         u32 status;
1332
1333         cmd->supported =
1334                 SUPPORTED_1000baseT_Full | SUPPORTED_Autoneg | SUPPORTED_FIBRE;
1335         cmd->port = PORT_FIBRE;
1336         cmd->transceiver = XCVR_INTERNAL;
1337
1338         status = RTL_R32(TBICSR);
1339         cmd->advertising = (status & TBINwEnable) ?  ADVERTISED_Autoneg : 0;
1340         cmd->autoneg = !!(status & TBINwEnable);
1341
1342         cmd->speed = SPEED_1000;
1343         cmd->duplex = DUPLEX_FULL; /* Always set */
1344
1345         return 0;
1346 }
1347
1348 static int rtl8169_gset_xmii(struct net_device *dev, struct ethtool_cmd *cmd)
1349 {
1350         struct rtl8169_private *tp = netdev_priv(dev);
1351
1352         return mii_ethtool_gset(&tp->mii, cmd);
1353 }
1354
1355 static int rtl8169_get_settings(struct net_device *dev, struct ethtool_cmd *cmd)
1356 {
1357         struct rtl8169_private *tp = netdev_priv(dev);
1358         unsigned long flags;
1359         int rc;
1360
1361         spin_lock_irqsave(&tp->lock, flags);
1362
1363         rc = tp->get_settings(dev, cmd);
1364
1365         spin_unlock_irqrestore(&tp->lock, flags);
1366         return rc;
1367 }
1368
1369 static void rtl8169_get_regs(struct net_device *dev, struct ethtool_regs *regs,
1370                              void *p)
1371 {
1372         struct rtl8169_private *tp = netdev_priv(dev);
1373         unsigned long flags;
1374
1375         if (regs->len > R8169_REGS_SIZE)
1376                 regs->len = R8169_REGS_SIZE;
1377
1378         spin_lock_irqsave(&tp->lock, flags);
1379         memcpy_fromio(p, tp->mmio_addr, regs->len);
1380         spin_unlock_irqrestore(&tp->lock, flags);
1381 }
1382
1383 static u32 rtl8169_get_msglevel(struct net_device *dev)
1384 {
1385         struct rtl8169_private *tp = netdev_priv(dev);
1386
1387         return tp->msg_enable;
1388 }
1389
1390 static void rtl8169_set_msglevel(struct net_device *dev, u32 value)
1391 {
1392         struct rtl8169_private *tp = netdev_priv(dev);
1393
1394         tp->msg_enable = value;
1395 }
1396
1397 static const char rtl8169_gstrings[][ETH_GSTRING_LEN] = {
1398         "tx_packets",
1399         "rx_packets",
1400         "tx_errors",
1401         "rx_errors",
1402         "rx_missed",
1403         "align_errors",
1404         "tx_single_collisions",
1405         "tx_multi_collisions",
1406         "unicast",
1407         "broadcast",
1408         "multicast",
1409         "tx_aborted",
1410         "tx_underrun",
1411 };
1412
1413 static int rtl8169_get_sset_count(struct net_device *dev, int sset)
1414 {
1415         switch (sset) {
1416         case ETH_SS_STATS:
1417                 return ARRAY_SIZE(rtl8169_gstrings);
1418         default:
1419                 return -EOPNOTSUPP;
1420         }
1421 }
1422
1423 static void rtl8169_update_counters(struct net_device *dev)
1424 {
1425         struct rtl8169_private *tp = netdev_priv(dev);
1426         void __iomem *ioaddr = tp->mmio_addr;
1427         struct rtl8169_counters *counters;
1428         dma_addr_t paddr;
1429         u32 cmd;
1430         int wait = 1000;
1431         struct device *d = &tp->pci_dev->dev;
1432
1433         /*
1434          * Some chips are unable to dump tally counters when the receiver
1435          * is disabled.
1436          */
1437         if ((RTL_R8(ChipCmd) & CmdRxEnb) == 0)
1438                 return;
1439
1440         counters = dma_alloc_coherent(d, sizeof(*counters), &paddr, GFP_KERNEL);
1441         if (!counters)
1442                 return;
1443
1444         RTL_W32(CounterAddrHigh, (u64)paddr >> 32);
1445         cmd = (u64)paddr & DMA_BIT_MASK(32);
1446         RTL_W32(CounterAddrLow, cmd);
1447         RTL_W32(CounterAddrLow, cmd | CounterDump);
1448
1449         while (wait--) {
1450                 if ((RTL_R32(CounterAddrLow) & CounterDump) == 0) {
1451                         /* copy updated counters */
1452                         memcpy(&tp->counters, counters, sizeof(*counters));
1453                         break;
1454                 }
1455                 udelay(10);
1456         }
1457
1458         RTL_W32(CounterAddrLow, 0);
1459         RTL_W32(CounterAddrHigh, 0);
1460
1461         dma_free_coherent(d, sizeof(*counters), counters, paddr);
1462 }
1463
1464 static void rtl8169_get_ethtool_stats(struct net_device *dev,
1465                                       struct ethtool_stats *stats, u64 *data)
1466 {
1467         struct rtl8169_private *tp = netdev_priv(dev);
1468
1469         ASSERT_RTNL();
1470
1471         rtl8169_update_counters(dev);
1472
1473         data[0] = le64_to_cpu(tp->counters.tx_packets);
1474         data[1] = le64_to_cpu(tp->counters.rx_packets);
1475         data[2] = le64_to_cpu(tp->counters.tx_errors);
1476         data[3] = le32_to_cpu(tp->counters.rx_errors);
1477         data[4] = le16_to_cpu(tp->counters.rx_missed);
1478         data[5] = le16_to_cpu(tp->counters.align_errors);
1479         data[6] = le32_to_cpu(tp->counters.tx_one_collision);
1480         data[7] = le32_to_cpu(tp->counters.tx_multi_collision);
1481         data[8] = le64_to_cpu(tp->counters.rx_unicast);
1482         data[9] = le64_to_cpu(tp->counters.rx_broadcast);
1483         data[10] = le32_to_cpu(tp->counters.rx_multicast);
1484         data[11] = le16_to_cpu(tp->counters.tx_aborted);
1485         data[12] = le16_to_cpu(tp->counters.tx_underun);
1486 }
1487
1488 static void rtl8169_get_strings(struct net_device *dev, u32 stringset, u8 *data)
1489 {
1490         switch(stringset) {
1491         case ETH_SS_STATS:
1492                 memcpy(data, *rtl8169_gstrings, sizeof(rtl8169_gstrings));
1493                 break;
1494         }
1495 }
1496
1497 static int rtl8169_set_flags(struct net_device *dev, u32 data)
1498 {
1499         struct rtl8169_private *tp = netdev_priv(dev);
1500         unsigned long old_feat = dev->features;
1501         int rc;
1502
1503         if ((tp->mac_version == RTL_GIGA_MAC_VER_05) &&
1504             !(data & ETH_FLAG_RXVLAN)) {
1505                 netif_info(tp, drv, dev, "8110SCd requires hardware Rx VLAN\n");
1506                 return -EINVAL;
1507         }
1508
1509         rc = ethtool_op_set_flags(dev, data, ETH_FLAG_TXVLAN | ETH_FLAG_RXVLAN);
1510         if (rc)
1511                 return rc;
1512
1513         if ((old_feat ^ dev->features) & NETIF_F_HW_VLAN_RX)
1514                 rtl8169_vlan_mode(dev);
1515
1516         return 0;
1517 }
1518
1519 static const struct ethtool_ops rtl8169_ethtool_ops = {
1520         .get_drvinfo            = rtl8169_get_drvinfo,
1521         .get_regs_len           = rtl8169_get_regs_len,
1522         .get_link               = ethtool_op_get_link,
1523         .get_settings           = rtl8169_get_settings,
1524         .set_settings           = rtl8169_set_settings,
1525         .get_msglevel           = rtl8169_get_msglevel,
1526         .set_msglevel           = rtl8169_set_msglevel,
1527         .get_rx_csum            = rtl8169_get_rx_csum,
1528         .set_rx_csum            = rtl8169_set_rx_csum,
1529         .set_tx_csum            = ethtool_op_set_tx_csum,
1530         .set_sg                 = ethtool_op_set_sg,
1531         .set_tso                = ethtool_op_set_tso,
1532         .get_regs               = rtl8169_get_regs,
1533         .get_wol                = rtl8169_get_wol,
1534         .set_wol                = rtl8169_set_wol,
1535         .get_strings            = rtl8169_get_strings,
1536         .get_sset_count         = rtl8169_get_sset_count,
1537         .get_ethtool_stats      = rtl8169_get_ethtool_stats,
1538         .set_flags              = rtl8169_set_flags,
1539         .get_flags              = ethtool_op_get_flags,
1540 };
1541
1542 static void rtl8169_get_mac_version(struct rtl8169_private *tp,
1543                                     void __iomem *ioaddr)
1544 {
1545         /*
1546          * The driver currently handles the 8168Bf and the 8168Be identically
1547          * but they can be identified more specifically through the test below
1548          * if needed:
1549          *
1550          * (RTL_R32(TxConfig) & 0x700000) == 0x500000 ? 8168Bf : 8168Be
1551          *
1552          * Same thing for the 8101Eb and the 8101Ec:
1553          *
1554          * (RTL_R32(TxConfig) & 0x700000) == 0x200000 ? 8101Eb : 8101Ec
1555          */
1556         static const struct {
1557                 u32 mask;
1558                 u32 val;
1559                 int mac_version;
1560         } mac_info[] = {
1561                 /* 8168D family. */
1562                 { 0x7cf00000, 0x28300000,       RTL_GIGA_MAC_VER_26 },
1563                 { 0x7cf00000, 0x28100000,       RTL_GIGA_MAC_VER_25 },
1564                 { 0x7c800000, 0x28000000,       RTL_GIGA_MAC_VER_26 },
1565
1566                 /* 8168DP family. */
1567                 { 0x7cf00000, 0x28800000,       RTL_GIGA_MAC_VER_27 },
1568                 { 0x7cf00000, 0x28a00000,       RTL_GIGA_MAC_VER_28 },
1569
1570                 /* 8168C family. */
1571                 { 0x7cf00000, 0x3cb00000,       RTL_GIGA_MAC_VER_24 },
1572                 { 0x7cf00000, 0x3c900000,       RTL_GIGA_MAC_VER_23 },
1573                 { 0x7cf00000, 0x3c800000,       RTL_GIGA_MAC_VER_18 },
1574                 { 0x7c800000, 0x3c800000,       RTL_GIGA_MAC_VER_24 },
1575                 { 0x7cf00000, 0x3c000000,       RTL_GIGA_MAC_VER_19 },
1576                 { 0x7cf00000, 0x3c200000,       RTL_GIGA_MAC_VER_20 },
1577                 { 0x7cf00000, 0x3c300000,       RTL_GIGA_MAC_VER_21 },
1578                 { 0x7cf00000, 0x3c400000,       RTL_GIGA_MAC_VER_22 },
1579                 { 0x7c800000, 0x3c000000,       RTL_GIGA_MAC_VER_22 },
1580
1581                 /* 8168B family. */
1582                 { 0x7cf00000, 0x38000000,       RTL_GIGA_MAC_VER_12 },
1583                 { 0x7cf00000, 0x38500000,       RTL_GIGA_MAC_VER_17 },
1584                 { 0x7c800000, 0x38000000,       RTL_GIGA_MAC_VER_17 },
1585                 { 0x7c800000, 0x30000000,       RTL_GIGA_MAC_VER_11 },
1586
1587                 /* 8101 family. */
1588                 { 0x7cf00000, 0x40a00000,       RTL_GIGA_MAC_VER_30 },
1589                 { 0x7cf00000, 0x40900000,       RTL_GIGA_MAC_VER_29 },
1590                 { 0x7c800000, 0x40800000,       RTL_GIGA_MAC_VER_30 },
1591                 { 0x7cf00000, 0x34a00000,       RTL_GIGA_MAC_VER_09 },
1592                 { 0x7cf00000, 0x24a00000,       RTL_GIGA_MAC_VER_09 },
1593                 { 0x7cf00000, 0x34900000,       RTL_GIGA_MAC_VER_08 },
1594                 { 0x7cf00000, 0x24900000,       RTL_GIGA_MAC_VER_08 },
1595                 { 0x7cf00000, 0x34800000,       RTL_GIGA_MAC_VER_07 },
1596                 { 0x7cf00000, 0x24800000,       RTL_GIGA_MAC_VER_07 },
1597                 { 0x7cf00000, 0x34000000,       RTL_GIGA_MAC_VER_13 },
1598                 { 0x7cf00000, 0x34300000,       RTL_GIGA_MAC_VER_10 },
1599                 { 0x7cf00000, 0x34200000,       RTL_GIGA_MAC_VER_16 },
1600                 { 0x7c800000, 0x34800000,       RTL_GIGA_MAC_VER_09 },
1601                 { 0x7c800000, 0x24800000,       RTL_GIGA_MAC_VER_09 },
1602                 { 0x7c800000, 0x34000000,       RTL_GIGA_MAC_VER_16 },
1603                 /* FIXME: where did these entries come from ? -- FR */
1604                 { 0xfc800000, 0x38800000,       RTL_GIGA_MAC_VER_15 },
1605                 { 0xfc800000, 0x30800000,       RTL_GIGA_MAC_VER_14 },
1606
1607                 /* 8110 family. */
1608                 { 0xfc800000, 0x98000000,       RTL_GIGA_MAC_VER_06 },
1609                 { 0xfc800000, 0x18000000,       RTL_GIGA_MAC_VER_05 },
1610                 { 0xfc800000, 0x10000000,       RTL_GIGA_MAC_VER_04 },
1611                 { 0xfc800000, 0x04000000,       RTL_GIGA_MAC_VER_03 },
1612                 { 0xfc800000, 0x00800000,       RTL_GIGA_MAC_VER_02 },
1613                 { 0xfc800000, 0x00000000,       RTL_GIGA_MAC_VER_01 },
1614
1615                 /* Catch-all */
1616                 { 0x00000000, 0x00000000,       RTL_GIGA_MAC_NONE   }
1617         }, *p = mac_info;
1618         u32 reg;
1619
1620         reg = RTL_R32(TxConfig);
1621         while ((reg & p->mask) != p->val)
1622                 p++;
1623         tp->mac_version = p->mac_version;
1624 }
1625
1626 static void rtl8169_print_mac_version(struct rtl8169_private *tp)
1627 {
1628         dprintk("mac_version = 0x%02x\n", tp->mac_version);
1629 }
1630
1631 struct phy_reg {
1632         u16 reg;
1633         u16 val;
1634 };
1635
1636 static void rtl_writephy_batch(struct rtl8169_private *tp,
1637                                const struct phy_reg *regs, int len)
1638 {
1639         while (len-- > 0) {
1640                 rtl_writephy(tp, regs->reg, regs->val);
1641                 regs++;
1642         }
1643 }
1644
1645 #define PHY_READ                0x00000000
1646 #define PHY_DATA_OR             0x10000000
1647 #define PHY_DATA_AND            0x20000000
1648 #define PHY_BJMPN               0x30000000
1649 #define PHY_READ_EFUSE          0x40000000
1650 #define PHY_READ_MAC_BYTE       0x50000000
1651 #define PHY_WRITE_MAC_BYTE      0x60000000
1652 #define PHY_CLEAR_READCOUNT     0x70000000
1653 #define PHY_WRITE               0x80000000
1654 #define PHY_READCOUNT_EQ_SKIP   0x90000000
1655 #define PHY_COMP_EQ_SKIPN       0xa0000000
1656 #define PHY_COMP_NEQ_SKIPN      0xb0000000
1657 #define PHY_WRITE_PREVIOUS      0xc0000000
1658 #define PHY_SKIPN               0xd0000000
1659 #define PHY_DELAY_MS            0xe0000000
1660 #define PHY_WRITE_ERI_WORD      0xf0000000
1661
1662 static void
1663 rtl_phy_write_fw(struct rtl8169_private *tp, const struct firmware *fw)
1664 {
1665         __le32 *phytable = (__le32 *)fw->data;
1666         struct net_device *dev = tp->dev;
1667         size_t index, fw_size = fw->size / sizeof(*phytable);
1668         u32 predata, count;
1669
1670         if (fw->size % sizeof(*phytable)) {
1671                 netif_err(tp, probe, dev, "odd sized firmware %zd\n", fw->size);
1672                 return;
1673         }
1674
1675         for (index = 0; index < fw_size; index++) {
1676                 u32 action = le32_to_cpu(phytable[index]);
1677                 u32 regno = (action & 0x0fff0000) >> 16;
1678
1679                 switch(action & 0xf0000000) {
1680                 case PHY_READ:
1681                 case PHY_DATA_OR:
1682                 case PHY_DATA_AND:
1683                 case PHY_READ_EFUSE:
1684                 case PHY_CLEAR_READCOUNT:
1685                 case PHY_WRITE:
1686                 case PHY_WRITE_PREVIOUS:
1687                 case PHY_DELAY_MS:
1688                         break;
1689
1690                 case PHY_BJMPN:
1691                         if (regno > index) {
1692                                 netif_err(tp, probe, tp->dev,
1693                                         "Out of range of firmware\n");
1694                                 return;
1695                         }
1696                         break;
1697                 case PHY_READCOUNT_EQ_SKIP:
1698                         if (index + 2 >= fw_size) {
1699                                 netif_err(tp, probe, tp->dev,
1700                                         "Out of range of firmware\n");
1701                                 return;
1702                         }
1703                         break;
1704                 case PHY_COMP_EQ_SKIPN:
1705                 case PHY_COMP_NEQ_SKIPN:
1706                 case PHY_SKIPN:
1707                         if (index + 1 + regno >= fw_size) {
1708                                 netif_err(tp, probe, tp->dev,
1709                                         "Out of range of firmware\n");
1710                                 return;
1711                         }
1712                         break;
1713
1714                 case PHY_READ_MAC_BYTE:
1715                 case PHY_WRITE_MAC_BYTE:
1716                 case PHY_WRITE_ERI_WORD:
1717                 default:
1718                         netif_err(tp, probe, tp->dev,
1719                                   "Invalid action 0x%08x\n", action);
1720                         return;
1721                 }
1722         }
1723
1724         predata = 0;
1725         count = 0;
1726
1727         for (index = 0; index < fw_size; ) {
1728                 u32 action = le32_to_cpu(phytable[index]);
1729                 u32 data = action & 0x0000ffff;
1730                 u32 regno = (action & 0x0fff0000) >> 16;
1731
1732                 if (!action)
1733                         break;
1734
1735                 switch(action & 0xf0000000) {
1736                 case PHY_READ:
1737                         predata = rtl_readphy(tp, regno);
1738                         count++;
1739                         index++;
1740                         break;
1741                 case PHY_DATA_OR:
1742                         predata |= data;
1743                         index++;
1744                         break;
1745                 case PHY_DATA_AND:
1746                         predata &= data;
1747                         index++;
1748                         break;
1749                 case PHY_BJMPN:
1750                         index -= regno;
1751                         break;
1752                 case PHY_READ_EFUSE:
1753                         predata = rtl8168d_efuse_read(tp->mmio_addr, regno);
1754                         index++;
1755                         break;
1756                 case PHY_CLEAR_READCOUNT:
1757                         count = 0;
1758                         index++;
1759                         break;
1760                 case PHY_WRITE:
1761                         rtl_writephy(tp, regno, data);
1762                         index++;
1763                         break;
1764                 case PHY_READCOUNT_EQ_SKIP:
1765                         if (count == data)
1766                                 index += 2;
1767                         else
1768                                 index += 1;
1769                         break;
1770                 case PHY_COMP_EQ_SKIPN:
1771                         if (predata == data)
1772                                 index += regno;
1773                         index++;
1774                         break;
1775                 case PHY_COMP_NEQ_SKIPN:
1776                         if (predata != data)
1777                                 index += regno;
1778                         index++;
1779                         break;
1780                 case PHY_WRITE_PREVIOUS:
1781                         rtl_writephy(tp, regno, predata);
1782                         index++;
1783                         break;
1784                 case PHY_SKIPN:
1785                         index += regno + 1;
1786                         break;
1787                 case PHY_DELAY_MS:
1788                         mdelay(data);
1789                         index++;
1790                         break;
1791
1792                 case PHY_READ_MAC_BYTE:
1793                 case PHY_WRITE_MAC_BYTE:
1794                 case PHY_WRITE_ERI_WORD:
1795                 default:
1796                         BUG();
1797                 }
1798         }
1799 }
1800
1801 static void rtl_release_firmware(struct rtl8169_private *tp)
1802 {
1803         if (!IS_ERR_OR_NULL(tp->fw))
1804                 release_firmware(tp->fw);
1805         tp->fw = RTL_FIRMWARE_UNKNOWN;
1806 }
1807
1808 static void rtl_apply_firmware(struct rtl8169_private *tp)
1809 {
1810         const struct firmware *fw = tp->fw;
1811
1812         /* TODO: release firmware once rtl_phy_write_fw signals failures. */
1813         if (!IS_ERR_OR_NULL(fw))
1814                 rtl_phy_write_fw(tp, fw);
1815 }
1816
1817 static void rtl_apply_firmware_cond(struct rtl8169_private *tp, u8 reg, u16 val)
1818 {
1819         if (rtl_readphy(tp, reg) != val)
1820                 netif_warn(tp, hw, tp->dev, "chipset not ready for firmware\n");
1821         else
1822                 rtl_apply_firmware(tp);
1823 }
1824
1825 static void rtl8169s_hw_phy_config(struct rtl8169_private *tp)
1826 {
1827         static const struct phy_reg phy_reg_init[] = {
1828                 { 0x1f, 0x0001 },
1829                 { 0x06, 0x006e },
1830                 { 0x08, 0x0708 },
1831                 { 0x15, 0x4000 },
1832                 { 0x18, 0x65c7 },
1833
1834                 { 0x1f, 0x0001 },
1835                 { 0x03, 0x00a1 },
1836                 { 0x02, 0x0008 },
1837                 { 0x01, 0x0120 },
1838                 { 0x00, 0x1000 },
1839                 { 0x04, 0x0800 },
1840                 { 0x04, 0x0000 },
1841
1842                 { 0x03, 0xff41 },
1843                 { 0x02, 0xdf60 },
1844                 { 0x01, 0x0140 },
1845                 { 0x00, 0x0077 },
1846                 { 0x04, 0x7800 },
1847                 { 0x04, 0x7000 },
1848
1849                 { 0x03, 0x802f },
1850                 { 0x02, 0x4f02 },
1851                 { 0x01, 0x0409 },
1852                 { 0x00, 0xf0f9 },
1853                 { 0x04, 0x9800 },
1854                 { 0x04, 0x9000 },
1855
1856                 { 0x03, 0xdf01 },
1857                 { 0x02, 0xdf20 },
1858                 { 0x01, 0xff95 },
1859                 { 0x00, 0xba00 },
1860                 { 0x04, 0xa800 },
1861                 { 0x04, 0xa000 },
1862
1863                 { 0x03, 0xff41 },
1864                 { 0x02, 0xdf20 },
1865                 { 0x01, 0x0140 },
1866                 { 0x00, 0x00bb },
1867                 { 0x04, 0xb800 },
1868                 { 0x04, 0xb000 },
1869
1870                 { 0x03, 0xdf41 },
1871                 { 0x02, 0xdc60 },
1872                 { 0x01, 0x6340 },
1873                 { 0x00, 0x007d },
1874                 { 0x04, 0xd800 },
1875                 { 0x04, 0xd000 },
1876
1877                 { 0x03, 0xdf01 },
1878                 { 0x02, 0xdf20 },
1879                 { 0x01, 0x100a },
1880                 { 0x00, 0xa0ff },
1881                 { 0x04, 0xf800 },
1882                 { 0x04, 0xf000 },
1883
1884                 { 0x1f, 0x0000 },
1885                 { 0x0b, 0x0000 },
1886                 { 0x00, 0x9200 }
1887         };
1888
1889         rtl_writephy_batch(tp, phy_reg_init, ARRAY_SIZE(phy_reg_init));
1890 }
1891
1892 static void rtl8169sb_hw_phy_config(struct rtl8169_private *tp)
1893 {
1894         static const struct phy_reg phy_reg_init[] = {
1895                 { 0x1f, 0x0002 },
1896                 { 0x01, 0x90d0 },
1897                 { 0x1f, 0x0000 }
1898         };
1899
1900         rtl_writephy_batch(tp, phy_reg_init, ARRAY_SIZE(phy_reg_init));
1901 }
1902
1903 static void rtl8169scd_hw_phy_config_quirk(struct rtl8169_private *tp)
1904 {
1905         struct pci_dev *pdev = tp->pci_dev;
1906         u16 vendor_id, device_id;
1907
1908         pci_read_config_word(pdev, PCI_SUBSYSTEM_VENDOR_ID, &vendor_id);
1909         pci_read_config_word(pdev, PCI_SUBSYSTEM_ID, &device_id);
1910
1911         if ((vendor_id != PCI_VENDOR_ID_GIGABYTE) || (device_id != 0xe000))
1912                 return;
1913
1914         rtl_writephy(tp, 0x1f, 0x0001);
1915         rtl_writephy(tp, 0x10, 0xf01b);
1916         rtl_writephy(tp, 0x1f, 0x0000);
1917 }
1918
1919 static void rtl8169scd_hw_phy_config(struct rtl8169_private *tp)
1920 {
1921         static const struct phy_reg phy_reg_init[] = {
1922                 { 0x1f, 0x0001 },
1923                 { 0x04, 0x0000 },
1924                 { 0x03, 0x00a1 },
1925                 { 0x02, 0x0008 },
1926                 { 0x01, 0x0120 },
1927                 { 0x00, 0x1000 },
1928                 { 0x04, 0x0800 },
1929                 { 0x04, 0x9000 },
1930                 { 0x03, 0x802f },
1931                 { 0x02, 0x4f02 },
1932                 { 0x01, 0x0409 },
1933                 { 0x00, 0xf099 },
1934                 { 0x04, 0x9800 },
1935                 { 0x04, 0xa000 },
1936                 { 0x03, 0xdf01 },
1937                 { 0x02, 0xdf20 },
1938                 { 0x01, 0xff95 },
1939                 { 0x00, 0xba00 },
1940                 { 0x04, 0xa800 },
1941                 { 0x04, 0xf000 },
1942                 { 0x03, 0xdf01 },
1943                 { 0x02, 0xdf20 },
1944                 { 0x01, 0x101a },
1945                 { 0x00, 0xa0ff },
1946                 { 0x04, 0xf800 },
1947                 { 0x04, 0x0000 },
1948                 { 0x1f, 0x0000 },
1949
1950                 { 0x1f, 0x0001 },
1951                 { 0x10, 0xf41b },
1952                 { 0x14, 0xfb54 },
1953                 { 0x18, 0xf5c7 },
1954                 { 0x1f, 0x0000 },
1955
1956                 { 0x1f, 0x0001 },
1957                 { 0x17, 0x0cc0 },
1958                 { 0x1f, 0x0000 }
1959         };
1960
1961         rtl_writephy_batch(tp, phy_reg_init, ARRAY_SIZE(phy_reg_init));
1962
1963         rtl8169scd_hw_phy_config_quirk(tp);
1964 }
1965
1966 static void rtl8169sce_hw_phy_config(struct rtl8169_private *tp)
1967 {
1968         static const struct phy_reg phy_reg_init[] = {
1969                 { 0x1f, 0x0001 },
1970                 { 0x04, 0x0000 },
1971                 { 0x03, 0x00a1 },
1972                 { 0x02, 0x0008 },
1973                 { 0x01, 0x0120 },
1974                 { 0x00, 0x1000 },
1975                 { 0x04, 0x0800 },
1976                 { 0x04, 0x9000 },
1977                 { 0x03, 0x802f },
1978                 { 0x02, 0x4f02 },
1979                 { 0x01, 0x0409 },
1980                 { 0x00, 0xf099 },
1981                 { 0x04, 0x9800 },
1982                 { 0x04, 0xa000 },
1983                 { 0x03, 0xdf01 },
1984                 { 0x02, 0xdf20 },
1985                 { 0x01, 0xff95 },
1986                 { 0x00, 0xba00 },
1987                 { 0x04, 0xa800 },
1988                 { 0x04, 0xf000 },
1989                 { 0x03, 0xdf01 },
1990                 { 0x02, 0xdf20 },
1991                 { 0x01, 0x101a },
1992                 { 0x00, 0xa0ff },
1993                 { 0x04, 0xf800 },
1994                 { 0x04, 0x0000 },
1995                 { 0x1f, 0x0000 },
1996
1997                 { 0x1f, 0x0001 },
1998                 { 0x0b, 0x8480 },
1999                 { 0x1f, 0x0000 },
2000
2001                 { 0x1f, 0x0001 },
2002                 { 0x18, 0x67c7 },
2003                 { 0x04, 0x2000 },
2004                 { 0x03, 0x002f },
2005                 { 0x02, 0x4360 },
2006                 { 0x01, 0x0109 },
2007                 { 0x00, 0x3022 },
2008                 { 0x04, 0x2800 },
2009                 { 0x1f, 0x0000 },
2010
2011                 { 0x1f, 0x0001 },
2012                 { 0x17, 0x0cc0 },
2013                 { 0x1f, 0x0000 }
2014         };
2015
2016         rtl_writephy_batch(tp, phy_reg_init, ARRAY_SIZE(phy_reg_init));
2017 }
2018
2019 static void rtl8168bb_hw_phy_config(struct rtl8169_private *tp)
2020 {
2021         static const struct phy_reg phy_reg_init[] = {
2022                 { 0x10, 0xf41b },
2023                 { 0x1f, 0x0000 }
2024         };
2025
2026         rtl_writephy(tp, 0x1f, 0x0001);
2027         rtl_patchphy(tp, 0x16, 1 << 0);
2028
2029         rtl_writephy_batch(tp, phy_reg_init, ARRAY_SIZE(phy_reg_init));
2030 }
2031
2032 static void rtl8168bef_hw_phy_config(struct rtl8169_private *tp)
2033 {
2034         static const struct phy_reg phy_reg_init[] = {
2035                 { 0x1f, 0x0001 },
2036                 { 0x10, 0xf41b },
2037                 { 0x1f, 0x0000 }
2038         };
2039
2040         rtl_writephy_batch(tp, phy_reg_init, ARRAY_SIZE(phy_reg_init));
2041 }
2042
2043 static void rtl8168cp_1_hw_phy_config(struct rtl8169_private *tp)
2044 {
2045         static const struct phy_reg phy_reg_init[] = {
2046                 { 0x1f, 0x0000 },
2047                 { 0x1d, 0x0f00 },
2048                 { 0x1f, 0x0002 },
2049                 { 0x0c, 0x1ec8 },
2050                 { 0x1f, 0x0000 }
2051         };
2052
2053         rtl_writephy_batch(tp, phy_reg_init, ARRAY_SIZE(phy_reg_init));
2054 }
2055
2056 static void rtl8168cp_2_hw_phy_config(struct rtl8169_private *tp)
2057 {
2058         static const struct phy_reg phy_reg_init[] = {
2059                 { 0x1f, 0x0001 },
2060                 { 0x1d, 0x3d98 },
2061                 { 0x1f, 0x0000 }
2062         };
2063
2064         rtl_writephy(tp, 0x1f, 0x0000);
2065         rtl_patchphy(tp, 0x14, 1 << 5);
2066         rtl_patchphy(tp, 0x0d, 1 << 5);
2067
2068         rtl_writephy_batch(tp, phy_reg_init, ARRAY_SIZE(phy_reg_init));
2069 }
2070
2071 static void rtl8168c_1_hw_phy_config(struct rtl8169_private *tp)
2072 {
2073         static const struct phy_reg phy_reg_init[] = {
2074                 { 0x1f, 0x0001 },
2075                 { 0x12, 0x2300 },
2076                 { 0x1f, 0x0002 },
2077                 { 0x00, 0x88d4 },
2078                 { 0x01, 0x82b1 },
2079                 { 0x03, 0x7002 },
2080                 { 0x08, 0x9e30 },
2081                 { 0x09, 0x01f0 },
2082                 { 0x0a, 0x5500 },
2083                 { 0x0c, 0x00c8 },
2084                 { 0x1f, 0x0003 },
2085                 { 0x12, 0xc096 },
2086                 { 0x16, 0x000a },
2087                 { 0x1f, 0x0000 },
2088                 { 0x1f, 0x0000 },
2089                 { 0x09, 0x2000 },
2090                 { 0x09, 0x0000 }
2091         };
2092
2093         rtl_writephy_batch(tp, phy_reg_init, ARRAY_SIZE(phy_reg_init));
2094
2095         rtl_patchphy(tp, 0x14, 1 << 5);
2096         rtl_patchphy(tp, 0x0d, 1 << 5);
2097         rtl_writephy(tp, 0x1f, 0x0000);
2098 }
2099
2100 static void rtl8168c_2_hw_phy_config(struct rtl8169_private *tp)
2101 {
2102         static const struct phy_reg phy_reg_init[] = {
2103                 { 0x1f, 0x0001 },
2104                 { 0x12, 0x2300 },
2105                 { 0x03, 0x802f },
2106                 { 0x02, 0x4f02 },
2107                 { 0x01, 0x0409 },
2108                 { 0x00, 0xf099 },
2109                 { 0x04, 0x9800 },
2110                 { 0x04, 0x9000 },
2111                 { 0x1d, 0x3d98 },
2112                 { 0x1f, 0x0002 },
2113                 { 0x0c, 0x7eb8 },
2114                 { 0x06, 0x0761 },
2115                 { 0x1f, 0x0003 },
2116                 { 0x16, 0x0f0a },
2117                 { 0x1f, 0x0000 }
2118         };
2119
2120         rtl_writephy_batch(tp, phy_reg_init, ARRAY_SIZE(phy_reg_init));
2121
2122         rtl_patchphy(tp, 0x16, 1 << 0);
2123         rtl_patchphy(tp, 0x14, 1 << 5);
2124         rtl_patchphy(tp, 0x0d, 1 << 5);
2125         rtl_writephy(tp, 0x1f, 0x0000);
2126 }
2127
2128 static void rtl8168c_3_hw_phy_config(struct rtl8169_private *tp)
2129 {
2130         static const struct phy_reg phy_reg_init[] = {
2131                 { 0x1f, 0x0001 },
2132                 { 0x12, 0x2300 },
2133                 { 0x1d, 0x3d98 },
2134                 { 0x1f, 0x0002 },
2135                 { 0x0c, 0x7eb8 },
2136                 { 0x06, 0x5461 },
2137                 { 0x1f, 0x0003 },
2138                 { 0x16, 0x0f0a },
2139                 { 0x1f, 0x0000 }
2140         };
2141
2142         rtl_writephy_batch(tp, phy_reg_init, ARRAY_SIZE(phy_reg_init));
2143
2144         rtl_patchphy(tp, 0x16, 1 << 0);
2145         rtl_patchphy(tp, 0x14, 1 << 5);
2146         rtl_patchphy(tp, 0x0d, 1 << 5);
2147         rtl_writephy(tp, 0x1f, 0x0000);
2148 }
2149
2150 static void rtl8168c_4_hw_phy_config(struct rtl8169_private *tp)
2151 {
2152         rtl8168c_3_hw_phy_config(tp);
2153 }
2154
2155 static void rtl8168d_1_hw_phy_config(struct rtl8169_private *tp)
2156 {
2157         static const struct phy_reg phy_reg_init_0[] = {
2158                 /* Channel Estimation */
2159                 { 0x1f, 0x0001 },
2160                 { 0x06, 0x4064 },
2161                 { 0x07, 0x2863 },
2162                 { 0x08, 0x059c },
2163                 { 0x09, 0x26b4 },
2164                 { 0x0a, 0x6a19 },
2165                 { 0x0b, 0xdcc8 },
2166                 { 0x10, 0xf06d },
2167                 { 0x14, 0x7f68 },
2168                 { 0x18, 0x7fd9 },
2169                 { 0x1c, 0xf0ff },
2170                 { 0x1d, 0x3d9c },
2171                 { 0x1f, 0x0003 },
2172                 { 0x12, 0xf49f },
2173                 { 0x13, 0x070b },
2174                 { 0x1a, 0x05ad },
2175                 { 0x14, 0x94c0 },
2176
2177                 /*
2178                  * Tx Error Issue
2179                  * enhance line driver power
2180                  */
2181                 { 0x1f, 0x0002 },
2182                 { 0x06, 0x5561 },
2183                 { 0x1f, 0x0005 },
2184                 { 0x05, 0x8332 },
2185                 { 0x06, 0x5561 },
2186
2187                 /*
2188                  * Can not link to 1Gbps with bad cable
2189                  * Decrease SNR threshold form 21.07dB to 19.04dB
2190                  */
2191                 { 0x1f, 0x0001 },
2192                 { 0x17, 0x0cc0 },
2193
2194                 { 0x1f, 0x0000 },
2195                 { 0x0d, 0xf880 }
2196         };
2197         void __iomem *ioaddr = tp->mmio_addr;
2198
2199         rtl_writephy_batch(tp, phy_reg_init_0, ARRAY_SIZE(phy_reg_init_0));
2200
2201         /*
2202          * Rx Error Issue
2203          * Fine Tune Switching regulator parameter
2204          */
2205         rtl_writephy(tp, 0x1f, 0x0002);
2206         rtl_w1w0_phy(tp, 0x0b, 0x0010, 0x00ef);
2207         rtl_w1w0_phy(tp, 0x0c, 0xa200, 0x5d00);
2208
2209         if (rtl8168d_efuse_read(ioaddr, 0x01) == 0xb1) {
2210                 static const struct phy_reg phy_reg_init[] = {
2211                         { 0x1f, 0x0002 },
2212                         { 0x05, 0x669a },
2213                         { 0x1f, 0x0005 },
2214                         { 0x05, 0x8330 },
2215                         { 0x06, 0x669a },
2216                         { 0x1f, 0x0002 }
2217                 };
2218                 int val;
2219
2220                 rtl_writephy_batch(tp, phy_reg_init, ARRAY_SIZE(phy_reg_init));
2221
2222                 val = rtl_readphy(tp, 0x0d);
2223
2224                 if ((val & 0x00ff) != 0x006c) {
2225                         static const u32 set[] = {
2226                                 0x0065, 0x0066, 0x0067, 0x0068,
2227                                 0x0069, 0x006a, 0x006b, 0x006c
2228                         };
2229                         int i;
2230
2231                         rtl_writephy(tp, 0x1f, 0x0002);
2232
2233                         val &= 0xff00;
2234                         for (i = 0; i < ARRAY_SIZE(set); i++)
2235                                 rtl_writephy(tp, 0x0d, val | set[i]);
2236                 }
2237         } else {
2238                 static const struct phy_reg phy_reg_init[] = {
2239                         { 0x1f, 0x0002 },
2240                         { 0x05, 0x6662 },
2241                         { 0x1f, 0x0005 },
2242                         { 0x05, 0x8330 },
2243                         { 0x06, 0x6662 }
2244                 };
2245
2246                 rtl_writephy_batch(tp, phy_reg_init, ARRAY_SIZE(phy_reg_init));
2247         }
2248
2249         /* RSET couple improve */
2250         rtl_writephy(tp, 0x1f, 0x0002);
2251         rtl_patchphy(tp, 0x0d, 0x0300);
2252         rtl_patchphy(tp, 0x0f, 0x0010);
2253
2254         /* Fine tune PLL performance */
2255         rtl_writephy(tp, 0x1f, 0x0002);
2256         rtl_w1w0_phy(tp, 0x02, 0x0100, 0x0600);
2257         rtl_w1w0_phy(tp, 0x03, 0x0000, 0xe000);
2258
2259         rtl_writephy(tp, 0x1f, 0x0005);
2260         rtl_writephy(tp, 0x05, 0x001b);
2261
2262         rtl_apply_firmware_cond(tp, MII_EXPANSION, 0xbf00);
2263
2264         rtl_writephy(tp, 0x1f, 0x0000);
2265 }
2266
2267 static void rtl8168d_2_hw_phy_config(struct rtl8169_private *tp)
2268 {
2269         static const struct phy_reg phy_reg_init_0[] = {
2270                 /* Channel Estimation */
2271                 { 0x1f, 0x0001 },
2272                 { 0x06, 0x4064 },
2273                 { 0x07, 0x2863 },
2274                 { 0x08, 0x059c },
2275                 { 0x09, 0x26b4 },
2276                 { 0x0a, 0x6a19 },
2277                 { 0x0b, 0xdcc8 },
2278                 { 0x10, 0xf06d },
2279                 { 0x14, 0x7f68 },
2280                 { 0x18, 0x7fd9 },
2281                 { 0x1c, 0xf0ff },
2282                 { 0x1d, 0x3d9c },
2283                 { 0x1f, 0x0003 },
2284                 { 0x12, 0xf49f },
2285                 { 0x13, 0x070b },
2286                 { 0x1a, 0x05ad },
2287                 { 0x14, 0x94c0 },
2288
2289                 /*
2290                  * Tx Error Issue
2291                  * enhance line driver power
2292                  */
2293                 { 0x1f, 0x0002 },
2294                 { 0x06, 0x5561 },
2295                 { 0x1f, 0x0005 },
2296                 { 0x05, 0x8332 },
2297                 { 0x06, 0x5561 },
2298
2299                 /*
2300                  * Can not link to 1Gbps with bad cable
2301                  * Decrease SNR threshold form 21.07dB to 19.04dB
2302                  */
2303                 { 0x1f, 0x0001 },
2304                 { 0x17, 0x0cc0 },
2305
2306                 { 0x1f, 0x0000 },
2307                 { 0x0d, 0xf880 }
2308         };
2309         void __iomem *ioaddr = tp->mmio_addr;
2310
2311         rtl_writephy_batch(tp, phy_reg_init_0, ARRAY_SIZE(phy_reg_init_0));
2312
2313         if (rtl8168d_efuse_read(ioaddr, 0x01) == 0xb1) {
2314                 static const struct phy_reg phy_reg_init[] = {
2315                         { 0x1f, 0x0002 },
2316                         { 0x05, 0x669a },
2317                         { 0x1f, 0x0005 },
2318                         { 0x05, 0x8330 },
2319                         { 0x06, 0x669a },
2320
2321                         { 0x1f, 0x0002 }
2322                 };
2323                 int val;
2324
2325                 rtl_writephy_batch(tp, phy_reg_init, ARRAY_SIZE(phy_reg_init));
2326
2327                 val = rtl_readphy(tp, 0x0d);
2328                 if ((val & 0x00ff) != 0x006c) {
2329                         static const u32 set[] = {
2330                                 0x0065, 0x0066, 0x0067, 0x0068,
2331                                 0x0069, 0x006a, 0x006b, 0x006c
2332                         };
2333                         int i;
2334
2335                         rtl_writephy(tp, 0x1f, 0x0002);
2336
2337                         val &= 0xff00;
2338                         for (i = 0; i < ARRAY_SIZE(set); i++)
2339                                 rtl_writephy(tp, 0x0d, val | set[i]);
2340                 }
2341         } else {
2342                 static const struct phy_reg phy_reg_init[] = {
2343                         { 0x1f, 0x0002 },
2344                         { 0x05, 0x2642 },
2345                         { 0x1f, 0x0005 },
2346                         { 0x05, 0x8330 },
2347                         { 0x06, 0x2642 }
2348                 };
2349
2350                 rtl_writephy_batch(tp, phy_reg_init, ARRAY_SIZE(phy_reg_init));
2351         }
2352
2353         /* Fine tune PLL performance */
2354         rtl_writephy(tp, 0x1f, 0x0002);
2355         rtl_w1w0_phy(tp, 0x02, 0x0100, 0x0600);
2356         rtl_w1w0_phy(tp, 0x03, 0x0000, 0xe000);
2357
2358         /* Switching regulator Slew rate */
2359         rtl_writephy(tp, 0x1f, 0x0002);
2360         rtl_patchphy(tp, 0x0f, 0x0017);
2361
2362         rtl_writephy(tp, 0x1f, 0x0005);
2363         rtl_writephy(tp, 0x05, 0x001b);
2364
2365         rtl_apply_firmware_cond(tp, MII_EXPANSION, 0xb300);
2366
2367         rtl_writephy(tp, 0x1f, 0x0000);
2368 }
2369
2370 static void rtl8168d_3_hw_phy_config(struct rtl8169_private *tp)
2371 {
2372         static const struct phy_reg phy_reg_init[] = {
2373                 { 0x1f, 0x0002 },
2374                 { 0x10, 0x0008 },
2375                 { 0x0d, 0x006c },
2376
2377                 { 0x1f, 0x0000 },
2378                 { 0x0d, 0xf880 },
2379
2380                 { 0x1f, 0x0001 },
2381                 { 0x17, 0x0cc0 },
2382
2383                 { 0x1f, 0x0001 },
2384                 { 0x0b, 0xa4d8 },
2385                 { 0x09, 0x281c },
2386                 { 0x07, 0x2883 },
2387                 { 0x0a, 0x6b35 },
2388                 { 0x1d, 0x3da4 },
2389                 { 0x1c, 0xeffd },
2390                 { 0x14, 0x7f52 },
2391                 { 0x18, 0x7fc6 },
2392                 { 0x08, 0x0601 },
2393                 { 0x06, 0x4063 },
2394                 { 0x10, 0xf074 },
2395                 { 0x1f, 0x0003 },
2396                 { 0x13, 0x0789 },
2397                 { 0x12, 0xf4bd },
2398                 { 0x1a, 0x04fd },
2399                 { 0x14, 0x84b0 },
2400                 { 0x1f, 0x0000 },
2401                 { 0x00, 0x9200 },
2402
2403                 { 0x1f, 0x0005 },
2404                 { 0x01, 0x0340 },
2405                 { 0x1f, 0x0001 },
2406                 { 0x04, 0x4000 },
2407                 { 0x03, 0x1d21 },
2408                 { 0x02, 0x0c32 },
2409                 { 0x01, 0x0200 },
2410                 { 0x00, 0x5554 },
2411                 { 0x04, 0x4800 },
2412                 { 0x04, 0x4000 },
2413                 { 0x04, 0xf000 },
2414                 { 0x03, 0xdf01 },
2415                 { 0x02, 0xdf20 },
2416                 { 0x01, 0x101a },
2417                 { 0x00, 0xa0ff },
2418                 { 0x04, 0xf800 },
2419                 { 0x04, 0xf000 },
2420                 { 0x1f, 0x0000 },
2421
2422                 { 0x1f, 0x0007 },
2423                 { 0x1e, 0x0023 },
2424                 { 0x16, 0x0000 },
2425                 { 0x1f, 0x0000 }
2426         };
2427
2428         rtl_writephy_batch(tp, phy_reg_init, ARRAY_SIZE(phy_reg_init));
2429 }
2430
2431 static void rtl8168d_4_hw_phy_config(struct rtl8169_private *tp)
2432 {
2433         static const struct phy_reg phy_reg_init[] = {
2434                 { 0x1f, 0x0001 },
2435                 { 0x17, 0x0cc0 },
2436
2437                 { 0x1f, 0x0007 },
2438                 { 0x1e, 0x002d },
2439                 { 0x18, 0x0040 },
2440                 { 0x1f, 0x0000 }
2441         };
2442
2443         rtl_writephy_batch(tp, phy_reg_init, ARRAY_SIZE(phy_reg_init));
2444         rtl_patchphy(tp, 0x0d, 1 << 5);
2445 }
2446
2447 static void rtl8102e_hw_phy_config(struct rtl8169_private *tp)
2448 {
2449         static const struct phy_reg phy_reg_init[] = {
2450                 { 0x1f, 0x0003 },
2451                 { 0x08, 0x441d },
2452                 { 0x01, 0x9100 },
2453                 { 0x1f, 0x0000 }
2454         };
2455
2456         rtl_writephy(tp, 0x1f, 0x0000);
2457         rtl_patchphy(tp, 0x11, 1 << 12);
2458         rtl_patchphy(tp, 0x19, 1 << 13);
2459         rtl_patchphy(tp, 0x10, 1 << 15);
2460
2461         rtl_writephy_batch(tp, phy_reg_init, ARRAY_SIZE(phy_reg_init));
2462 }
2463
2464 static void rtl8105e_hw_phy_config(struct rtl8169_private *tp)
2465 {
2466         static const struct phy_reg phy_reg_init[] = {
2467                 { 0x1f, 0x0005 },
2468                 { 0x1a, 0x0000 },
2469                 { 0x1f, 0x0000 },
2470
2471                 { 0x1f, 0x0004 },
2472                 { 0x1c, 0x0000 },
2473                 { 0x1f, 0x0000 },
2474
2475                 { 0x1f, 0x0001 },
2476                 { 0x15, 0x7701 },
2477                 { 0x1f, 0x0000 }
2478         };
2479
2480         /* Disable ALDPS before ram code */
2481         rtl_writephy(tp, 0x1f, 0x0000);
2482         rtl_writephy(tp, 0x18, 0x0310);
2483         msleep(100);
2484
2485         rtl_apply_firmware(tp);
2486
2487         rtl_writephy_batch(tp, phy_reg_init, ARRAY_SIZE(phy_reg_init));
2488 }
2489
2490 static void rtl_hw_phy_config(struct net_device *dev)
2491 {
2492         struct rtl8169_private *tp = netdev_priv(dev);
2493
2494         rtl8169_print_mac_version(tp);
2495
2496         switch (tp->mac_version) {
2497         case RTL_GIGA_MAC_VER_01:
2498                 break;
2499         case RTL_GIGA_MAC_VER_02:
2500         case RTL_GIGA_MAC_VER_03:
2501                 rtl8169s_hw_phy_config(tp);
2502                 break;
2503         case RTL_GIGA_MAC_VER_04:
2504                 rtl8169sb_hw_phy_config(tp);
2505                 break;
2506         case RTL_GIGA_MAC_VER_05:
2507                 rtl8169scd_hw_phy_config(tp);
2508                 break;
2509         case RTL_GIGA_MAC_VER_06:
2510                 rtl8169sce_hw_phy_config(tp);
2511                 break;
2512         case RTL_GIGA_MAC_VER_07:
2513         case RTL_GIGA_MAC_VER_08:
2514         case RTL_GIGA_MAC_VER_09:
2515                 rtl8102e_hw_phy_config(tp);
2516                 break;
2517         case RTL_GIGA_MAC_VER_11:
2518                 rtl8168bb_hw_phy_config(tp);
2519                 break;
2520         case RTL_GIGA_MAC_VER_12:
2521                 rtl8168bef_hw_phy_config(tp);
2522                 break;
2523         case RTL_GIGA_MAC_VER_17:
2524                 rtl8168bef_hw_phy_config(tp);
2525                 break;
2526         case RTL_GIGA_MAC_VER_18:
2527                 rtl8168cp_1_hw_phy_config(tp);
2528                 break;
2529         case RTL_GIGA_MAC_VER_19:
2530                 rtl8168c_1_hw_phy_config(tp);
2531                 break;
2532         case RTL_GIGA_MAC_VER_20:
2533                 rtl8168c_2_hw_phy_config(tp);
2534                 break;
2535         case RTL_GIGA_MAC_VER_21:
2536                 rtl8168c_3_hw_phy_config(tp);
2537                 break;
2538         case RTL_GIGA_MAC_VER_22:
2539                 rtl8168c_4_hw_phy_config(tp);
2540                 break;
2541         case RTL_GIGA_MAC_VER_23:
2542         case RTL_GIGA_MAC_VER_24:
2543                 rtl8168cp_2_hw_phy_config(tp);
2544                 break;
2545         case RTL_GIGA_MAC_VER_25:
2546                 rtl8168d_1_hw_phy_config(tp);
2547                 break;
2548         case RTL_GIGA_MAC_VER_26:
2549                 rtl8168d_2_hw_phy_config(tp);
2550                 break;
2551         case RTL_GIGA_MAC_VER_27:
2552                 rtl8168d_3_hw_phy_config(tp);
2553                 break;
2554         case RTL_GIGA_MAC_VER_28:
2555                 rtl8168d_4_hw_phy_config(tp);
2556                 break;
2557         case RTL_GIGA_MAC_VER_29:
2558         case RTL_GIGA_MAC_VER_30:
2559                 rtl8105e_hw_phy_config(tp);
2560                 break;
2561
2562         default:
2563                 break;
2564         }
2565 }
2566
2567 static void rtl8169_phy_timer(unsigned long __opaque)
2568 {
2569         struct net_device *dev = (struct net_device *)__opaque;
2570         struct rtl8169_private *tp = netdev_priv(dev);
2571         struct timer_list *timer = &tp->timer;
2572         void __iomem *ioaddr = tp->mmio_addr;
2573         unsigned long timeout = RTL8169_PHY_TIMEOUT;
2574
2575         assert(tp->mac_version > RTL_GIGA_MAC_VER_01);
2576
2577         if (!(tp->phy_1000_ctrl_reg & ADVERTISE_1000FULL))
2578                 return;
2579
2580         spin_lock_irq(&tp->lock);
2581
2582         if (tp->phy_reset_pending(tp)) {
2583                 /*
2584                  * A busy loop could burn quite a few cycles on nowadays CPU.
2585                  * Let's delay the execution of the timer for a few ticks.
2586                  */
2587                 timeout = HZ/10;
2588                 goto out_mod_timer;
2589         }
2590
2591         if (tp->link_ok(ioaddr))
2592                 goto out_unlock;
2593
2594         netif_warn(tp, link, dev, "PHY reset until link up\n");
2595
2596         tp->phy_reset_enable(tp);
2597
2598 out_mod_timer:
2599         mod_timer(timer, jiffies + timeout);
2600 out_unlock:
2601         spin_unlock_irq(&tp->lock);
2602 }
2603
2604 static inline void rtl8169_delete_timer(struct net_device *dev)
2605 {
2606         struct rtl8169_private *tp = netdev_priv(dev);
2607         struct timer_list *timer = &tp->timer;
2608
2609         if (tp->mac_version <= RTL_GIGA_MAC_VER_01)
2610                 return;
2611
2612         del_timer_sync(timer);
2613 }
2614
2615 static inline void rtl8169_request_timer(struct net_device *dev)
2616 {
2617         struct rtl8169_private *tp = netdev_priv(dev);
2618         struct timer_list *timer = &tp->timer;
2619
2620         if (tp->mac_version <= RTL_GIGA_MAC_VER_01)
2621                 return;
2622
2623         mod_timer(timer, jiffies + RTL8169_PHY_TIMEOUT);
2624 }
2625
2626 #ifdef CONFIG_NET_POLL_CONTROLLER
2627 /*
2628  * Polling 'interrupt' - used by things like netconsole to send skbs
2629  * without having to re-enable interrupts. It's not called while
2630  * the interrupt routine is executing.
2631  */
2632 static void rtl8169_netpoll(struct net_device *dev)
2633 {
2634         struct rtl8169_private *tp = netdev_priv(dev);
2635         struct pci_dev *pdev = tp->pci_dev;
2636
2637         disable_irq(pdev->irq);
2638         rtl8169_interrupt(pdev->irq, dev);
2639         enable_irq(pdev->irq);
2640 }
2641 #endif
2642
2643 static void rtl8169_release_board(struct pci_dev *pdev, struct net_device *dev,
2644                                   void __iomem *ioaddr)
2645 {
2646         iounmap(ioaddr);
2647         pci_release_regions(pdev);
2648         pci_clear_mwi(pdev);
2649         pci_disable_device(pdev);
2650         free_netdev(dev);
2651 }
2652
2653 static void rtl8169_phy_reset(struct net_device *dev,
2654                               struct rtl8169_private *tp)
2655 {
2656         unsigned int i;
2657
2658         tp->phy_reset_enable(tp);
2659         for (i = 0; i < 100; i++) {
2660                 if (!tp->phy_reset_pending(tp))
2661                         return;
2662                 msleep(1);
2663         }
2664         netif_err(tp, link, dev, "PHY reset failed\n");
2665 }
2666
2667 static void rtl8169_init_phy(struct net_device *dev, struct rtl8169_private *tp)
2668 {
2669         void __iomem *ioaddr = tp->mmio_addr;
2670
2671         rtl_hw_phy_config(dev);
2672
2673         if (tp->mac_version <= RTL_GIGA_MAC_VER_06) {
2674                 dprintk("Set MAC Reg C+CR Offset 0x82h = 0x01h\n");
2675                 RTL_W8(0x82, 0x01);
2676         }
2677
2678         pci_write_config_byte(tp->pci_dev, PCI_LATENCY_TIMER, 0x40);
2679
2680         if (tp->mac_version <= RTL_GIGA_MAC_VER_06)
2681                 pci_write_config_byte(tp->pci_dev, PCI_CACHE_LINE_SIZE, 0x08);
2682
2683         if (tp->mac_version == RTL_GIGA_MAC_VER_02) {
2684                 dprintk("Set MAC Reg C+CR Offset 0x82h = 0x01h\n");
2685                 RTL_W8(0x82, 0x01);
2686                 dprintk("Set PHY Reg 0x0bh = 0x00h\n");
2687                 rtl_writephy(tp, 0x0b, 0x0000); //w 0x0b 15 0 0
2688         }
2689
2690         rtl8169_phy_reset(dev, tp);
2691
2692         rtl8169_set_speed(dev, AUTONEG_ENABLE, SPEED_1000, DUPLEX_FULL,
2693                 ADVERTISED_10baseT_Half | ADVERTISED_10baseT_Full |
2694                 ADVERTISED_100baseT_Half | ADVERTISED_100baseT_Full |
2695                 (tp->mii.supports_gmii ?
2696                         ADVERTISED_1000baseT_Half |
2697                         ADVERTISED_1000baseT_Full : 0));
2698
2699         if (RTL_R8(PHYstatus) & TBI_Enable)
2700                 netif_info(tp, link, dev, "TBI auto-negotiating\n");
2701 }
2702
2703 static void rtl_rar_set(struct rtl8169_private *tp, u8 *addr)
2704 {
2705         void __iomem *ioaddr = tp->mmio_addr;
2706         u32 high;
2707         u32 low;
2708
2709         low  = addr[0] | (addr[1] << 8) | (addr[2] << 16) | (addr[3] << 24);
2710         high = addr[4] | (addr[5] << 8);
2711
2712         spin_lock_irq(&tp->lock);
2713
2714         RTL_W8(Cfg9346, Cfg9346_Unlock);
2715
2716         RTL_W32(MAC4, high);
2717         RTL_R32(MAC4);
2718
2719         RTL_W32(MAC0, low);
2720         RTL_R32(MAC0);
2721
2722         RTL_W8(Cfg9346, Cfg9346_Lock);
2723
2724         spin_unlock_irq(&tp->lock);
2725 }
2726
2727 static int rtl_set_mac_address(struct net_device *dev, void *p)
2728 {
2729         struct rtl8169_private *tp = netdev_priv(dev);
2730         struct sockaddr *addr = p;
2731
2732         if (!is_valid_ether_addr(addr->sa_data))
2733                 return -EADDRNOTAVAIL;
2734
2735         memcpy(dev->dev_addr, addr->sa_data, dev->addr_len);
2736
2737         rtl_rar_set(tp, dev->dev_addr);
2738
2739         return 0;
2740 }
2741
2742 static int rtl8169_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
2743 {
2744         struct rtl8169_private *tp = netdev_priv(dev);
2745         struct mii_ioctl_data *data = if_mii(ifr);
2746
2747         return netif_running(dev) ? tp->do_ioctl(tp, data, cmd) : -ENODEV;
2748 }
2749
2750 static int rtl_xmii_ioctl(struct rtl8169_private *tp, struct mii_ioctl_data *data, int cmd)
2751 {
2752         switch (cmd) {
2753         case SIOCGMIIPHY:
2754                 data->phy_id = 32; /* Internal PHY */
2755                 return 0;
2756
2757         case SIOCGMIIREG:
2758                 data->val_out = rtl_readphy(tp, data->reg_num & 0x1f);
2759                 return 0;
2760
2761         case SIOCSMIIREG:
2762                 rtl_writephy(tp, data->reg_num & 0x1f, data->val_in);
2763                 return 0;
2764         }
2765         return -EOPNOTSUPP;
2766 }
2767
2768 static int rtl_tbi_ioctl(struct rtl8169_private *tp, struct mii_ioctl_data *data, int cmd)
2769 {
2770         return -EOPNOTSUPP;
2771 }
2772
2773 static const struct rtl_cfg_info {
2774         void (*hw_start)(struct net_device *);
2775         unsigned int region;
2776         unsigned int align;
2777         u16 intr_event;
2778         u16 napi_event;
2779         unsigned features;
2780         u8 default_ver;
2781 } rtl_cfg_infos [] = {
2782         [RTL_CFG_0] = {
2783                 .hw_start       = rtl_hw_start_8169,
2784                 .region         = 1,
2785                 .align          = 0,
2786                 .intr_event     = SYSErr | LinkChg | RxOverflow |
2787                                   RxFIFOOver | TxErr | TxOK | RxOK | RxErr,
2788                 .napi_event     = RxFIFOOver | TxErr | TxOK | RxOK | RxOverflow,
2789                 .features       = RTL_FEATURE_GMII,
2790                 .default_ver    = RTL_GIGA_MAC_VER_01,
2791         },
2792         [RTL_CFG_1] = {
2793                 .hw_start       = rtl_hw_start_8168,
2794                 .region         = 2,
2795                 .align          = 8,
2796                 .intr_event     = SYSErr | LinkChg | RxOverflow |
2797                                   TxErr | TxOK | RxOK | RxErr,
2798                 .napi_event     = TxErr | TxOK | RxOK | RxOverflow,
2799                 .features       = RTL_FEATURE_GMII | RTL_FEATURE_MSI,
2800                 .default_ver    = RTL_GIGA_MAC_VER_11,
2801         },
2802         [RTL_CFG_2] = {
2803                 .hw_start       = rtl_hw_start_8101,
2804                 .region         = 2,
2805                 .align          = 8,
2806                 .intr_event     = SYSErr | LinkChg | RxOverflow | PCSTimeout |
2807                                   RxFIFOOver | TxErr | TxOK | RxOK | RxErr,
2808                 .napi_event     = RxFIFOOver | TxErr | TxOK | RxOK | RxOverflow,
2809                 .features       = RTL_FEATURE_MSI,
2810                 .default_ver    = RTL_GIGA_MAC_VER_13,
2811         }
2812 };
2813
2814 /* Cfg9346_Unlock assumed. */
2815 static unsigned rtl_try_msi(struct pci_dev *pdev, void __iomem *ioaddr,
2816                             const struct rtl_cfg_info *cfg)
2817 {
2818         unsigned msi = 0;
2819         u8 cfg2;
2820
2821         cfg2 = RTL_R8(Config2) & ~MSIEnable;
2822         if (cfg->features & RTL_FEATURE_MSI) {
2823                 if (pci_enable_msi(pdev)) {
2824                         dev_info(&pdev->dev, "no MSI. Back to INTx.\n");
2825                 } else {
2826                         cfg2 |= MSIEnable;
2827                         msi = RTL_FEATURE_MSI;
2828                 }
2829         }
2830         RTL_W8(Config2, cfg2);
2831         return msi;
2832 }
2833
2834 static void rtl_disable_msi(struct pci_dev *pdev, struct rtl8169_private *tp)
2835 {
2836         if (tp->features & RTL_FEATURE_MSI) {
2837                 pci_disable_msi(pdev);
2838                 tp->features &= ~RTL_FEATURE_MSI;
2839         }
2840 }
2841
2842 static const struct net_device_ops rtl8169_netdev_ops = {
2843         .ndo_open               = rtl8169_open,
2844         .ndo_stop               = rtl8169_close,
2845         .ndo_get_stats          = rtl8169_get_stats,
2846         .ndo_start_xmit         = rtl8169_start_xmit,
2847         .ndo_tx_timeout         = rtl8169_tx_timeout,
2848         .ndo_validate_addr      = eth_validate_addr,
2849         .ndo_change_mtu         = rtl8169_change_mtu,
2850         .ndo_set_mac_address    = rtl_set_mac_address,
2851         .ndo_do_ioctl           = rtl8169_ioctl,
2852         .ndo_set_multicast_list = rtl_set_rx_mode,
2853 #ifdef CONFIG_NET_POLL_CONTROLLER
2854         .ndo_poll_controller    = rtl8169_netpoll,
2855 #endif
2856
2857 };
2858
2859 static void __devinit rtl_init_mdio_ops(struct rtl8169_private *tp)
2860 {
2861         struct mdio_ops *ops = &tp->mdio_ops;
2862
2863         switch (tp->mac_version) {
2864         case RTL_GIGA_MAC_VER_27:
2865                 ops->write      = r8168dp_1_mdio_write;
2866                 ops->read       = r8168dp_1_mdio_read;
2867                 break;
2868         case RTL_GIGA_MAC_VER_28:
2869                 ops->write      = r8168dp_2_mdio_write;
2870                 ops->read       = r8168dp_2_mdio_read;
2871                 break;
2872         default:
2873                 ops->write      = r8169_mdio_write;
2874                 ops->read       = r8169_mdio_read;
2875                 break;
2876         }
2877 }
2878
2879 static void r810x_phy_power_down(struct rtl8169_private *tp)
2880 {
2881         rtl_writephy(tp, 0x1f, 0x0000);
2882         rtl_writephy(tp, MII_BMCR, BMCR_PDOWN);
2883 }
2884
2885 static void r810x_phy_power_up(struct rtl8169_private *tp)
2886 {
2887         rtl_writephy(tp, 0x1f, 0x0000);
2888         rtl_writephy(tp, MII_BMCR, BMCR_ANENABLE);
2889 }
2890
2891 static void r810x_pll_power_down(struct rtl8169_private *tp)
2892 {
2893         if (__rtl8169_get_wol(tp) & WAKE_ANY) {
2894                 rtl_writephy(tp, 0x1f, 0x0000);
2895                 rtl_writephy(tp, MII_BMCR, 0x0000);
2896                 return;
2897         }
2898
2899         r810x_phy_power_down(tp);
2900 }
2901
2902 static void r810x_pll_power_up(struct rtl8169_private *tp)
2903 {
2904         r810x_phy_power_up(tp);
2905 }
2906
2907 static void r8168_phy_power_up(struct rtl8169_private *tp)
2908 {
2909         rtl_writephy(tp, 0x1f, 0x0000);
2910         rtl_writephy(tp, 0x0e, 0x0000);
2911         rtl_writephy(tp, MII_BMCR, BMCR_ANENABLE);
2912 }
2913
2914 static void r8168_phy_power_down(struct rtl8169_private *tp)
2915 {
2916         rtl_writephy(tp, 0x1f, 0x0000);
2917         rtl_writephy(tp, 0x0e, 0x0200);
2918         rtl_writephy(tp, MII_BMCR, BMCR_PDOWN);
2919 }
2920
2921 static void r8168_pll_power_down(struct rtl8169_private *tp)
2922 {
2923         void __iomem *ioaddr = tp->mmio_addr;
2924
2925         if (((tp->mac_version == RTL_GIGA_MAC_VER_27) ||
2926              (tp->mac_version == RTL_GIGA_MAC_VER_28)) &&
2927             (ocp_read(tp, 0x0f, 0x0010) & 0x00008000)) {
2928                 return;
2929         }
2930
2931         if (((tp->mac_version == RTL_GIGA_MAC_VER_23) ||
2932              (tp->mac_version == RTL_GIGA_MAC_VER_24)) &&
2933             (RTL_R16(CPlusCmd) & ASF)) {
2934                 return;
2935         }
2936
2937         if (__rtl8169_get_wol(tp) & WAKE_ANY) {
2938                 rtl_writephy(tp, 0x1f, 0x0000);
2939                 rtl_writephy(tp, MII_BMCR, 0x0000);
2940
2941                 RTL_W32(RxConfig, RTL_R32(RxConfig) |
2942                         AcceptBroadcast | AcceptMulticast | AcceptMyPhys);
2943                 return;
2944         }
2945
2946         r8168_phy_power_down(tp);
2947
2948         switch (tp->mac_version) {
2949         case RTL_GIGA_MAC_VER_25:
2950         case RTL_GIGA_MAC_VER_26:
2951         case RTL_GIGA_MAC_VER_27:
2952         case RTL_GIGA_MAC_VER_28:
2953                 RTL_W8(PMCH, RTL_R8(PMCH) & ~0x80);
2954                 break;
2955         }
2956 }
2957
2958 static void r8168_pll_power_up(struct rtl8169_private *tp)
2959 {
2960         void __iomem *ioaddr = tp->mmio_addr;
2961
2962         if (((tp->mac_version == RTL_GIGA_MAC_VER_27) ||
2963              (tp->mac_version == RTL_GIGA_MAC_VER_28)) &&
2964             (ocp_read(tp, 0x0f, 0x0010) & 0x00008000)) {
2965                 return;
2966         }
2967
2968         switch (tp->mac_version) {
2969         case RTL_GIGA_MAC_VER_25:
2970         case RTL_GIGA_MAC_VER_26:
2971         case RTL_GIGA_MAC_VER_27:
2972         case RTL_GIGA_MAC_VER_28:
2973                 RTL_W8(PMCH, RTL_R8(PMCH) | 0x80);
2974                 break;
2975         }
2976
2977         r8168_phy_power_up(tp);
2978 }
2979
2980 static void rtl_pll_power_op(struct rtl8169_private *tp,
2981                              void (*op)(struct rtl8169_private *))
2982 {
2983         if (op)
2984                 op(tp);
2985 }
2986
2987 static void rtl_pll_power_down(struct rtl8169_private *tp)
2988 {
2989         rtl_pll_power_op(tp, tp->pll_power_ops.down);
2990 }
2991
2992 static void rtl_pll_power_up(struct rtl8169_private *tp)
2993 {
2994         rtl_pll_power_op(tp, tp->pll_power_ops.up);
2995 }
2996
2997 static void __devinit rtl_init_pll_power_ops(struct rtl8169_private *tp)
2998 {
2999         struct pll_power_ops *ops = &tp->pll_power_ops;
3000
3001         switch (tp->mac_version) {
3002         case RTL_GIGA_MAC_VER_07:
3003         case RTL_GIGA_MAC_VER_08:
3004         case RTL_GIGA_MAC_VER_09:
3005         case RTL_GIGA_MAC_VER_10:
3006         case RTL_GIGA_MAC_VER_16:
3007         case RTL_GIGA_MAC_VER_29:
3008         case RTL_GIGA_MAC_VER_30:
3009                 ops->down       = r810x_pll_power_down;
3010                 ops->up         = r810x_pll_power_up;
3011                 break;
3012
3013         case RTL_GIGA_MAC_VER_11:
3014         case RTL_GIGA_MAC_VER_12:
3015         case RTL_GIGA_MAC_VER_17:
3016         case RTL_GIGA_MAC_VER_18:
3017         case RTL_GIGA_MAC_VER_19:
3018         case RTL_GIGA_MAC_VER_20:
3019         case RTL_GIGA_MAC_VER_21:
3020         case RTL_GIGA_MAC_VER_22:
3021         case RTL_GIGA_MAC_VER_23:
3022         case RTL_GIGA_MAC_VER_24:
3023         case RTL_GIGA_MAC_VER_25:
3024         case RTL_GIGA_MAC_VER_26:
3025         case RTL_GIGA_MAC_VER_27:
3026         case RTL_GIGA_MAC_VER_28:
3027                 ops->down       = r8168_pll_power_down;
3028                 ops->up         = r8168_pll_power_up;
3029                 break;
3030
3031         default:
3032                 ops->down       = NULL;
3033                 ops->up         = NULL;
3034                 break;
3035         }
3036 }
3037
3038 static int __devinit
3039 rtl8169_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
3040 {
3041         const struct rtl_cfg_info *cfg = rtl_cfg_infos + ent->driver_data;
3042         const unsigned int region = cfg->region;
3043         struct rtl8169_private *tp;
3044         struct mii_if_info *mii;
3045         struct net_device *dev;
3046         void __iomem *ioaddr;
3047         unsigned int i;
3048         int rc;
3049
3050         if (netif_msg_drv(&debug)) {
3051                 printk(KERN_INFO "%s Gigabit Ethernet driver %s loaded\n",
3052                        MODULENAME, RTL8169_VERSION);
3053         }
3054
3055         dev = alloc_etherdev(sizeof (*tp));
3056         if (!dev) {
3057                 if (netif_msg_drv(&debug))
3058                         dev_err(&pdev->dev, "unable to alloc new ethernet\n");
3059                 rc = -ENOMEM;
3060                 goto out;
3061         }
3062
3063         SET_NETDEV_DEV(dev, &pdev->dev);
3064         dev->netdev_ops = &rtl8169_netdev_ops;
3065         tp = netdev_priv(dev);
3066         tp->dev = dev;
3067         tp->pci_dev = pdev;
3068         tp->msg_enable = netif_msg_init(debug.msg_enable, R8169_MSG_DEFAULT);
3069
3070         mii = &tp->mii;
3071         mii->dev = dev;
3072         mii->mdio_read = rtl_mdio_read;
3073         mii->mdio_write = rtl_mdio_write;
3074         mii->phy_id_mask = 0x1f;
3075         mii->reg_num_mask = 0x1f;
3076         mii->supports_gmii = !!(cfg->features & RTL_FEATURE_GMII);
3077
3078         /* disable ASPM completely as that cause random device stop working
3079          * problems as well as full system hangs for some PCIe devices users */
3080         pci_disable_link_state(pdev, PCIE_LINK_STATE_L0S | PCIE_LINK_STATE_L1 |
3081                                      PCIE_LINK_STATE_CLKPM);
3082
3083         /* enable device (incl. PCI PM wakeup and hotplug setup) */
3084         rc = pci_enable_device(pdev);
3085         if (rc < 0) {
3086                 netif_err(tp, probe, dev, "enable failure\n");
3087                 goto err_out_free_dev_1;
3088         }
3089
3090         if (pci_set_mwi(pdev) < 0)
3091                 netif_info(tp, probe, dev, "Mem-Wr-Inval unavailable\n");
3092
3093         /* make sure PCI base addr 1 is MMIO */
3094         if (!(pci_resource_flags(pdev, region) & IORESOURCE_MEM)) {
3095                 netif_err(tp, probe, dev,
3096                           "region #%d not an MMIO resource, aborting\n",
3097                           region);
3098                 rc = -ENODEV;
3099                 goto err_out_mwi_2;
3100         }
3101
3102         /* check for weird/broken PCI region reporting */
3103         if (pci_resource_len(pdev, region) < R8169_REGS_SIZE) {
3104                 netif_err(tp, probe, dev,
3105                           "Invalid PCI region size(s), aborting\n");
3106                 rc = -ENODEV;
3107                 goto err_out_mwi_2;
3108         }
3109
3110         rc = pci_request_regions(pdev, MODULENAME);
3111         if (rc < 0) {
3112                 netif_err(tp, probe, dev, "could not request regions\n");
3113                 goto err_out_mwi_2;
3114         }
3115
3116         tp->cp_cmd = RxChkSum;
3117
3118         if ((sizeof(dma_addr_t) > 4) &&
3119             !pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) && use_dac) {
3120                 tp->cp_cmd |= PCIDAC;
3121                 dev->features |= NETIF_F_HIGHDMA;
3122         } else {
3123                 rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
3124                 if (rc < 0) {
3125                         netif_err(tp, probe, dev, "DMA configuration failed\n");
3126                         goto err_out_free_res_3;
3127                 }
3128         }
3129
3130         /* ioremap MMIO region */
3131         ioaddr = ioremap(pci_resource_start(pdev, region), R8169_REGS_SIZE);
3132         if (!ioaddr) {
3133                 netif_err(tp, probe, dev, "cannot remap MMIO, aborting\n");
3134                 rc = -EIO;
3135                 goto err_out_free_res_3;
3136         }
3137
3138         tp->pcie_cap = pci_find_capability(pdev, PCI_CAP_ID_EXP);
3139         if (!tp->pcie_cap)
3140                 netif_info(tp, probe, dev, "no PCI Express capability\n");
3141
3142         RTL_W16(IntrMask, 0x0000);
3143
3144         /* Soft reset the chip. */
3145         RTL_W8(ChipCmd, CmdReset);
3146
3147         /* Check that the chip has finished the reset. */
3148         for (i = 0; i < 100; i++) {
3149                 if ((RTL_R8(ChipCmd) & CmdReset) == 0)
3150                         break;
3151                 msleep_interruptible(1);
3152         }
3153
3154         RTL_W16(IntrStatus, 0xffff);
3155
3156         pci_set_master(pdev);
3157
3158         /* Identify chip attached to board */
3159         rtl8169_get_mac_version(tp, ioaddr);
3160
3161         /*
3162          * Pretend we are using VLANs; This bypasses a nasty bug where
3163          * Interrupts stop flowing on high load on 8110SCd controllers.
3164          */
3165         if (tp->mac_version == RTL_GIGA_MAC_VER_05)
3166                 tp->cp_cmd |= RxVlan;
3167
3168         rtl_init_mdio_ops(tp);
3169         rtl_init_pll_power_ops(tp);
3170
3171         /* Use appropriate default if unknown */
3172         if (tp->mac_version == RTL_GIGA_MAC_NONE) {
3173                 netif_notice(tp, probe, dev,
3174                              "unknown MAC, using family default\n");
3175                 tp->mac_version = cfg->default_ver;
3176         }
3177
3178         rtl8169_print_mac_version(tp);
3179
3180         for (i = 0; i < ARRAY_SIZE(rtl_chip_info); i++) {
3181                 if (tp->mac_version == rtl_chip_info[i].mac_version)
3182                         break;
3183         }
3184         if (i == ARRAY_SIZE(rtl_chip_info)) {
3185                 dev_err(&pdev->dev,
3186                         "driver bug, MAC version not found in rtl_chip_info\n");
3187                 goto err_out_msi_4;
3188         }
3189         tp->chipset = i;
3190
3191         RTL_W8(Cfg9346, Cfg9346_Unlock);
3192         RTL_W8(Config1, RTL_R8(Config1) | PMEnable);
3193         RTL_W8(Config5, RTL_R8(Config5) & PMEStatus);
3194         if ((RTL_R8(Config3) & (LinkUp | MagicPacket)) != 0)
3195                 tp->features |= RTL_FEATURE_WOL;
3196         if ((RTL_R8(Config5) & (UWF | BWF | MWF)) != 0)
3197                 tp->features |= RTL_FEATURE_WOL;
3198         tp->features |= rtl_try_msi(pdev, ioaddr, cfg);
3199         RTL_W8(Cfg9346, Cfg9346_Lock);
3200
3201         if ((tp->mac_version <= RTL_GIGA_MAC_VER_06) &&
3202             (RTL_R8(PHYstatus) & TBI_Enable)) {
3203                 tp->set_speed = rtl8169_set_speed_tbi;
3204                 tp->get_settings = rtl8169_gset_tbi;
3205                 tp->phy_reset_enable = rtl8169_tbi_reset_enable;
3206                 tp->phy_reset_pending = rtl8169_tbi_reset_pending;
3207                 tp->link_ok = rtl8169_tbi_link_ok;
3208                 tp->do_ioctl = rtl_tbi_ioctl;
3209
3210                 tp->phy_1000_ctrl_reg = ADVERTISE_1000FULL; /* Implied by TBI */
3211         } else {
3212                 tp->set_speed = rtl8169_set_speed_xmii;
3213                 tp->get_settings = rtl8169_gset_xmii;
3214                 tp->phy_reset_enable = rtl8169_xmii_reset_enable;
3215                 tp->phy_reset_pending = rtl8169_xmii_reset_pending;
3216                 tp->link_ok = rtl8169_xmii_link_ok;
3217                 tp->do_ioctl = rtl_xmii_ioctl;
3218         }
3219
3220         spin_lock_init(&tp->lock);
3221
3222         tp->mmio_addr = ioaddr;
3223
3224         /* Get MAC address */
3225         for (i = 0; i < MAC_ADDR_LEN; i++)
3226                 dev->dev_addr[i] = RTL_R8(MAC0 + i);
3227         memcpy(dev->perm_addr, dev->dev_addr, dev->addr_len);
3228
3229         SET_ETHTOOL_OPS(dev, &rtl8169_ethtool_ops);
3230         dev->watchdog_timeo = RTL8169_TX_TIMEOUT;
3231         dev->irq = pdev->irq;
3232         dev->base_addr = (unsigned long) ioaddr;
3233
3234         netif_napi_add(dev, &tp->napi, rtl8169_poll, R8169_NAPI_WEIGHT);
3235
3236         dev->features |= NETIF_F_HW_VLAN_TX_RX | NETIF_F_GRO;
3237
3238         tp->intr_mask = 0xffff;
3239         tp->hw_start = cfg->hw_start;
3240         tp->intr_event = cfg->intr_event;
3241         tp->napi_event = cfg->napi_event;
3242
3243         init_timer(&tp->timer);
3244         tp->timer.data = (unsigned long) dev;
3245         tp->timer.function = rtl8169_phy_timer;
3246
3247         tp->fw = RTL_FIRMWARE_UNKNOWN;
3248
3249         rc = register_netdev(dev);
3250         if (rc < 0)
3251                 goto err_out_msi_4;
3252
3253         pci_set_drvdata(pdev, dev);
3254
3255         netif_info(tp, probe, dev, "%s at 0x%lx, %pM, XID %08x IRQ %d\n",
3256                    rtl_chip_info[tp->chipset].name,
3257                    dev->base_addr, dev->dev_addr,
3258                    (u32)(RTL_R32(TxConfig) & 0x9cf0f8ff), dev->irq);
3259
3260         if ((tp->mac_version == RTL_GIGA_MAC_VER_27) ||
3261             (tp->mac_version == RTL_GIGA_MAC_VER_28)) {
3262                 rtl8168_driver_start(tp);
3263         }
3264
3265         device_set_wakeup_enable(&pdev->dev, tp->features & RTL_FEATURE_WOL);
3266
3267         if (pci_dev_run_wake(pdev))
3268                 pm_runtime_put_noidle(&pdev->dev);
3269
3270         netif_carrier_off(dev);
3271
3272 out:
3273         return rc;
3274
3275 err_out_msi_4:
3276         rtl_disable_msi(pdev, tp);
3277         iounmap(ioaddr);
3278 err_out_free_res_3:
3279         pci_release_regions(pdev);
3280 err_out_mwi_2:
3281         pci_clear_mwi(pdev);
3282         pci_disable_device(pdev);
3283 err_out_free_dev_1:
3284         free_netdev(dev);
3285         goto out;
3286 }
3287
3288 static void __devexit rtl8169_remove_one(struct pci_dev *pdev)
3289 {
3290         struct net_device *dev = pci_get_drvdata(pdev);
3291         struct rtl8169_private *tp = netdev_priv(dev);
3292
3293         if ((tp->mac_version == RTL_GIGA_MAC_VER_27) ||
3294             (tp->mac_version == RTL_GIGA_MAC_VER_28)) {
3295                 rtl8168_driver_stop(tp);
3296         }
3297
3298         cancel_delayed_work_sync(&tp->task);
3299
3300         unregister_netdev(dev);
3301
3302         rtl_release_firmware(tp);
3303
3304         if (pci_dev_run_wake(pdev))
3305                 pm_runtime_get_noresume(&pdev->dev);
3306
3307         /* restore original MAC address */
3308         rtl_rar_set(tp, dev->perm_addr);
3309
3310         rtl_disable_msi(pdev, tp);
3311         rtl8169_release_board(pdev, dev, tp->mmio_addr);
3312         pci_set_drvdata(pdev, NULL);
3313 }
3314
3315 static void rtl_request_firmware(struct rtl8169_private *tp)
3316 {
3317         int i;
3318
3319         /* Return early if the firmware is already loaded / cached. */
3320         if (!IS_ERR(tp->fw))
3321                 goto out;
3322
3323         for (i = 0; i < ARRAY_SIZE(rtl_firmware_infos); i++) {
3324                 const struct rtl_firmware_info *info = rtl_firmware_infos + i;
3325
3326                 if (info->mac_version == tp->mac_version) {
3327                         const char *name = info->fw_name;
3328                         int rc;
3329
3330                         rc = request_firmware(&tp->fw, name, &tp->pci_dev->dev);
3331                         if (rc < 0) {
3332                                 netif_warn(tp, ifup, tp->dev, "unable to load "
3333                                         "firmware patch %s (%d)\n", name, rc);
3334                                 goto out_disable_request_firmware;
3335                         }
3336                         goto out;
3337                 }
3338         }
3339
3340 out_disable_request_firmware:
3341         tp->fw = NULL;
3342 out:
3343         return;
3344 }
3345
3346 static int rtl8169_open(struct net_device *dev)
3347 {
3348         struct rtl8169_private *tp = netdev_priv(dev);
3349         void __iomem *ioaddr = tp->mmio_addr;
3350         struct pci_dev *pdev = tp->pci_dev;
3351         int retval = -ENOMEM;
3352
3353         pm_runtime_get_sync(&pdev->dev);
3354
3355         /*
3356          * Rx and Tx desscriptors needs 256 bytes alignment.
3357          * dma_alloc_coherent provides more.
3358          */
3359         tp->TxDescArray = dma_alloc_coherent(&pdev->dev, R8169_TX_RING_BYTES,
3360                                              &tp->TxPhyAddr, GFP_KERNEL);
3361         if (!tp->TxDescArray)
3362                 goto err_pm_runtime_put;
3363
3364         tp->RxDescArray = dma_alloc_coherent(&pdev->dev, R8169_RX_RING_BYTES,
3365                                              &tp->RxPhyAddr, GFP_KERNEL);
3366         if (!tp->RxDescArray)
3367                 goto err_free_tx_0;
3368
3369         retval = rtl8169_init_ring(dev);
3370         if (retval < 0)
3371                 goto err_free_rx_1;
3372
3373         INIT_DELAYED_WORK(&tp->task, NULL);
3374
3375         smp_mb();
3376
3377         rtl_request_firmware(tp);
3378
3379         retval = request_irq(dev->irq, rtl8169_interrupt,
3380                              (tp->features & RTL_FEATURE_MSI) ? 0 : IRQF_SHARED,
3381                              dev->name, dev);
3382         if (retval < 0)
3383                 goto err_release_fw_2;
3384
3385         napi_enable(&tp->napi);
3386
3387         rtl8169_init_phy(dev, tp);
3388
3389         rtl8169_vlan_mode(dev);
3390
3391         rtl_pll_power_up(tp);
3392
3393         rtl_hw_start(dev);
3394
3395         rtl8169_request_timer(dev);
3396
3397         tp->saved_wolopts = 0;
3398         pm_runtime_put_noidle(&pdev->dev);
3399
3400         rtl8169_check_link_status(dev, tp, ioaddr);
3401 out:
3402         return retval;
3403
3404 err_release_fw_2:
3405         rtl_release_firmware(tp);
3406         rtl8169_rx_clear(tp);
3407 err_free_rx_1:
3408         dma_free_coherent(&pdev->dev, R8169_RX_RING_BYTES, tp->RxDescArray,
3409                           tp->RxPhyAddr);
3410         tp->RxDescArray = NULL;
3411 err_free_tx_0:
3412         dma_free_coherent(&pdev->dev, R8169_TX_RING_BYTES, tp->TxDescArray,
3413                           tp->TxPhyAddr);
3414         tp->TxDescArray = NULL;
3415 err_pm_runtime_put:
3416         pm_runtime_put_noidle(&pdev->dev);
3417         goto out;
3418 }
3419
3420 static void rtl8169_hw_reset(struct rtl8169_private *tp)
3421 {
3422         void __iomem *ioaddr = tp->mmio_addr;
3423
3424         /* Disable interrupts */
3425         rtl8169_irq_mask_and_ack(ioaddr);
3426
3427         if (tp->mac_version == RTL_GIGA_MAC_VER_27 ||
3428             tp->mac_version == RTL_GIGA_MAC_VER_28) {
3429                 while (RTL_R8(TxPoll) & NPQ)
3430                         udelay(20);
3431
3432         }
3433
3434         /* Reset the chipset */
3435         RTL_W8(ChipCmd, CmdReset);
3436
3437         /* PCI commit */
3438         RTL_R8(ChipCmd);
3439 }
3440
3441 static void rtl_set_rx_tx_config_registers(struct rtl8169_private *tp)
3442 {
3443         void __iomem *ioaddr = tp->mmio_addr;
3444         u32 cfg = rtl8169_rx_config;
3445
3446         cfg |= (RTL_R32(RxConfig) & rtl_chip_info[tp->chipset].RxConfigMask);
3447         RTL_W32(RxConfig, cfg);
3448
3449         /* Set DMA burst size and Interframe Gap Time */
3450         RTL_W32(TxConfig, (TX_DMA_BURST << TxDMAShift) |
3451                 (InterFrameGap << TxInterFrameGapShift));
3452 }
3453
3454 static void rtl_hw_start(struct net_device *dev)
3455 {
3456         struct rtl8169_private *tp = netdev_priv(dev);
3457         void __iomem *ioaddr = tp->mmio_addr;
3458         unsigned int i;
3459
3460         /* Soft reset the chip. */
3461         RTL_W8(ChipCmd, CmdReset);
3462
3463         /* Check that the chip has finished the reset. */
3464         for (i = 0; i < 100; i++) {
3465                 if ((RTL_R8(ChipCmd) & CmdReset) == 0)
3466                         break;
3467                 msleep_interruptible(1);
3468         }
3469
3470         tp->hw_start(dev);
3471
3472         netif_start_queue(dev);
3473 }
3474
3475
3476 static void rtl_set_rx_tx_desc_registers(struct rtl8169_private *tp,
3477                                          void __iomem *ioaddr)
3478 {
3479         /*
3480          * Magic spell: some iop3xx ARM board needs the TxDescAddrHigh
3481          * register to be written before TxDescAddrLow to work.
3482          * Switching from MMIO to I/O access fixes the issue as well.
3483          */
3484         RTL_W32(TxDescStartAddrHigh, ((u64) tp->TxPhyAddr) >> 32);
3485         RTL_W32(TxDescStartAddrLow, ((u64) tp->TxPhyAddr) & DMA_BIT_MASK(32));
3486         RTL_W32(RxDescAddrHigh, ((u64) tp->RxPhyAddr) >> 32);
3487         RTL_W32(RxDescAddrLow, ((u64) tp->RxPhyAddr) & DMA_BIT_MASK(32));
3488 }
3489
3490 static u16 rtl_rw_cpluscmd(void __iomem *ioaddr)
3491 {
3492         u16 cmd;
3493
3494         cmd = RTL_R16(CPlusCmd);
3495         RTL_W16(CPlusCmd, cmd);
3496         return cmd;
3497 }
3498
3499 static void rtl_set_rx_max_size(void __iomem *ioaddr, unsigned int rx_buf_sz)
3500 {
3501         /* Low hurts. Let's disable the filtering. */
3502         RTL_W16(RxMaxSize, rx_buf_sz + 1);
3503 }
3504
3505 static void rtl8169_set_magic_reg(void __iomem *ioaddr, unsigned mac_version)
3506 {
3507         static const struct {
3508                 u32 mac_version;
3509                 u32 clk;
3510                 u32 val;
3511         } cfg2_info [] = {
3512                 { RTL_GIGA_MAC_VER_05, PCI_Clock_33MHz, 0x000fff00 }, // 8110SCd
3513                 { RTL_GIGA_MAC_VER_05, PCI_Clock_66MHz, 0x000fffff },
3514                 { RTL_GIGA_MAC_VER_06, PCI_Clock_33MHz, 0x00ffff00 }, // 8110SCe
3515                 { RTL_GIGA_MAC_VER_06, PCI_Clock_66MHz, 0x00ffffff }
3516         }, *p = cfg2_info;
3517         unsigned int i;
3518         u32 clk;
3519
3520         clk = RTL_R8(Config2) & PCI_Clock_66MHz;
3521         for (i = 0; i < ARRAY_SIZE(cfg2_info); i++, p++) {
3522                 if ((p->mac_version == mac_version) && (p->clk == clk)) {
3523                         RTL_W32(0x7c, p->val);
3524                         break;
3525                 }
3526         }
3527 }
3528
3529 static void rtl_hw_start_8169(struct net_device *dev)
3530 {
3531         struct rtl8169_private *tp = netdev_priv(dev);
3532         void __iomem *ioaddr = tp->mmio_addr;
3533         struct pci_dev *pdev = tp->pci_dev;
3534
3535         if (tp->mac_version == RTL_GIGA_MAC_VER_05) {
3536                 RTL_W16(CPlusCmd, RTL_R16(CPlusCmd) | PCIMulRW);
3537                 pci_write_config_byte(pdev, PCI_CACHE_LINE_SIZE, 0x08);
3538         }
3539
3540         RTL_W8(Cfg9346, Cfg9346_Unlock);
3541         if ((tp->mac_version == RTL_GIGA_MAC_VER_01) ||
3542             (tp->mac_version == RTL_GIGA_MAC_VER_02) ||
3543             (tp->mac_version == RTL_GIGA_MAC_VER_03) ||
3544             (tp->mac_version == RTL_GIGA_MAC_VER_04))
3545                 RTL_W8(ChipCmd, CmdTxEnb | CmdRxEnb);
3546
3547         RTL_W8(EarlyTxThres, NoEarlyTx);
3548
3549         rtl_set_rx_max_size(ioaddr, rx_buf_sz);
3550
3551         if ((tp->mac_version == RTL_GIGA_MAC_VER_01) ||
3552             (tp->mac_version == RTL_GIGA_MAC_VER_02) ||
3553             (tp->mac_version == RTL_GIGA_MAC_VER_03) ||
3554             (tp->mac_version == RTL_GIGA_MAC_VER_04))
3555                 rtl_set_rx_tx_config_registers(tp);
3556
3557         tp->cp_cmd |= rtl_rw_cpluscmd(ioaddr) | PCIMulRW;
3558
3559         if ((tp->mac_version == RTL_GIGA_MAC_VER_02) ||
3560             (tp->mac_version == RTL_GIGA_MAC_VER_03)) {
3561                 dprintk("Set MAC Reg C+CR Offset 0xE0. "
3562                         "Bit-3 and bit-14 MUST be 1\n");
3563                 tp->cp_cmd |= (1 << 14);
3564         }
3565
3566         RTL_W16(CPlusCmd, tp->cp_cmd);
3567
3568         rtl8169_set_magic_reg(ioaddr, tp->mac_version);
3569
3570         /*
3571          * Undocumented corner. Supposedly:
3572          * (TxTimer << 12) | (TxPackets << 8) | (RxTimer << 4) | RxPackets
3573          */
3574         RTL_W16(IntrMitigate, 0x0000);
3575
3576         rtl_set_rx_tx_desc_registers(tp, ioaddr);
3577
3578         if ((tp->mac_version != RTL_GIGA_MAC_VER_01) &&
3579             (tp->mac_version != RTL_GIGA_MAC_VER_02) &&
3580             (tp->mac_version != RTL_GIGA_MAC_VER_03) &&
3581             (tp->mac_version != RTL_GIGA_MAC_VER_04)) {
3582                 RTL_W8(ChipCmd, CmdTxEnb | CmdRxEnb);
3583                 rtl_set_rx_tx_config_registers(tp);
3584         }
3585
3586         RTL_W8(Cfg9346, Cfg9346_Lock);
3587
3588         /* Initially a 10 us delay. Turned it into a PCI commit. - FR */
3589         RTL_R8(IntrMask);
3590
3591         RTL_W32(RxMissed, 0);
3592
3593         rtl_set_rx_mode(dev);
3594
3595         /* no early-rx interrupts */
3596         RTL_W16(MultiIntr, RTL_R16(MultiIntr) & 0xF000);
3597
3598         /* Enable all known interrupts by setting the interrupt mask. */
3599         RTL_W16(IntrMask, tp->intr_event);
3600 }
3601
3602 static void rtl_tx_performance_tweak(struct pci_dev *pdev, u16 force)
3603 {
3604         struct net_device *dev = pci_get_drvdata(pdev);
3605         struct rtl8169_private *tp = netdev_priv(dev);
3606         int cap = tp->pcie_cap;
3607
3608         if (cap) {
3609                 u16 ctl;
3610
3611                 pci_read_config_word(pdev, cap + PCI_EXP_DEVCTL, &ctl);
3612                 ctl = (ctl & ~PCI_EXP_DEVCTL_READRQ) | force;
3613                 pci_write_config_word(pdev, cap + PCI_EXP_DEVCTL, ctl);
3614         }
3615 }
3616
3617 static void rtl_csi_access_enable(void __iomem *ioaddr, u32 bits)
3618 {
3619         u32 csi;
3620
3621         csi = rtl_csi_read(ioaddr, 0x070c) & 0x00ffffff;
3622         rtl_csi_write(ioaddr, 0x070c, csi | bits);
3623 }
3624
3625 static void rtl_csi_access_enable_1(void __iomem *ioaddr)
3626 {
3627         rtl_csi_access_enable(ioaddr, 0x17000000);
3628 }
3629
3630 static void rtl_csi_access_enable_2(void __iomem *ioaddr)
3631 {
3632         rtl_csi_access_enable(ioaddr, 0x27000000);
3633 }
3634
3635 struct ephy_info {
3636         unsigned int offset;
3637         u16 mask;
3638         u16 bits;
3639 };
3640
3641 static void rtl_ephy_init(void __iomem *ioaddr, const struct ephy_info *e, int len)
3642 {
3643         u16 w;
3644
3645         while (len-- > 0) {
3646                 w = (rtl_ephy_read(ioaddr, e->offset) & ~e->mask) | e->bits;
3647                 rtl_ephy_write(ioaddr, e->offset, w);
3648                 e++;
3649         }
3650 }
3651
3652 static void rtl_disable_clock_request(struct pci_dev *pdev)
3653 {
3654         struct net_device *dev = pci_get_drvdata(pdev);
3655         struct rtl8169_private *tp = netdev_priv(dev);
3656         int cap = tp->pcie_cap;
3657
3658         if (cap) {
3659                 u16 ctl;
3660
3661                 pci_read_config_word(pdev, cap + PCI_EXP_LNKCTL, &ctl);
3662                 ctl &= ~PCI_EXP_LNKCTL_CLKREQ_EN;
3663                 pci_write_config_word(pdev, cap + PCI_EXP_LNKCTL, ctl);
3664         }
3665 }
3666
3667 static void rtl_enable_clock_request(struct pci_dev *pdev)
3668 {
3669         struct net_device *dev = pci_get_drvdata(pdev);
3670         struct rtl8169_private *tp = netdev_priv(dev);
3671         int cap = tp->pcie_cap;
3672
3673         if (cap) {
3674                 u16 ctl;
3675
3676                 pci_read_config_word(pdev, cap + PCI_EXP_LNKCTL, &ctl);
3677                 ctl |= PCI_EXP_LNKCTL_CLKREQ_EN;
3678                 pci_write_config_word(pdev, cap + PCI_EXP_LNKCTL, ctl);
3679         }
3680 }
3681
3682 #define R8168_CPCMD_QUIRK_MASK (\
3683         EnableBist | \
3684         Mac_dbgo_oe | \
3685         Force_half_dup | \
3686         Force_rxflow_en | \
3687         Force_txflow_en | \
3688         Cxpl_dbg_sel | \
3689         ASF | \
3690         PktCntrDisable | \
3691         Mac_dbgo_sel)
3692
3693 static void rtl_hw_start_8168bb(void __iomem *ioaddr, struct pci_dev *pdev)
3694 {
3695         RTL_W8(Config3, RTL_R8(Config3) & ~Beacon_en);
3696
3697         RTL_W16(CPlusCmd, RTL_R16(CPlusCmd) & ~R8168_CPCMD_QUIRK_MASK);
3698
3699         rtl_tx_performance_tweak(pdev,
3700                 (0x5 << MAX_READ_REQUEST_SHIFT) | PCI_EXP_DEVCTL_NOSNOOP_EN);
3701 }
3702
3703 static void rtl_hw_start_8168bef(void __iomem *ioaddr, struct pci_dev *pdev)
3704 {
3705         rtl_hw_start_8168bb(ioaddr, pdev);
3706
3707         RTL_W8(MaxTxPacketSize, TxPacketMax);
3708
3709         RTL_W8(Config4, RTL_R8(Config4) & ~(1 << 0));
3710 }
3711
3712 static void __rtl_hw_start_8168cp(void __iomem *ioaddr, struct pci_dev *pdev)
3713 {
3714         RTL_W8(Config1, RTL_R8(Config1) | Speed_down);
3715
3716         RTL_W8(Config3, RTL_R8(Config3) & ~Beacon_en);
3717
3718         rtl_tx_performance_tweak(pdev, 0x5 << MAX_READ_REQUEST_SHIFT);
3719
3720         rtl_disable_clock_request(pdev);
3721
3722         RTL_W16(CPlusCmd, RTL_R16(CPlusCmd) & ~R8168_CPCMD_QUIRK_MASK);
3723 }
3724
3725 static void rtl_hw_start_8168cp_1(void __iomem *ioaddr, struct pci_dev *pdev)
3726 {
3727         static const struct ephy_info e_info_8168cp[] = {
3728                 { 0x01, 0,      0x0001 },
3729                 { 0x02, 0x0800, 0x1000 },
3730                 { 0x03, 0,      0x0042 },
3731                 { 0x06, 0x0080, 0x0000 },
3732                 { 0x07, 0,      0x2000 }
3733         };
3734
3735         rtl_csi_access_enable_2(ioaddr);
3736
3737         rtl_ephy_init(ioaddr, e_info_8168cp, ARRAY_SIZE(e_info_8168cp));
3738
3739         __rtl_hw_start_8168cp(ioaddr, pdev);
3740 }
3741
3742 static void rtl_hw_start_8168cp_2(void __iomem *ioaddr, struct pci_dev *pdev)
3743 {
3744         rtl_csi_access_enable_2(ioaddr);
3745
3746         RTL_W8(Config3, RTL_R8(Config3) & ~Beacon_en);
3747
3748         rtl_tx_performance_tweak(pdev, 0x5 << MAX_READ_REQUEST_SHIFT);
3749
3750         RTL_W16(CPlusCmd, RTL_R16(CPlusCmd) & ~R8168_CPCMD_QUIRK_MASK);
3751 }
3752
3753 static void rtl_hw_start_8168cp_3(void __iomem *ioaddr, struct pci_dev *pdev)
3754 {
3755         rtl_csi_access_enable_2(ioaddr);
3756
3757         RTL_W8(Config3, RTL_R8(Config3) & ~Beacon_en);
3758
3759         /* Magic. */
3760         RTL_W8(DBG_REG, 0x20);
3761
3762         RTL_W8(MaxTxPacketSize, TxPacketMax);
3763
3764         rtl_tx_performance_tweak(pdev, 0x5 << MAX_READ_REQUEST_SHIFT);
3765
3766         RTL_W16(CPlusCmd, RTL_R16(CPlusCmd) & ~R8168_CPCMD_QUIRK_MASK);
3767 }
3768
3769 static void rtl_hw_start_8168c_1(void __iomem *ioaddr, struct pci_dev *pdev)
3770 {
3771         static const struct ephy_info e_info_8168c_1[] = {
3772                 { 0x02, 0x0800, 0x1000 },
3773                 { 0x03, 0,      0x0002 },
3774                 { 0x06, 0x0080, 0x0000 }
3775         };
3776
3777         rtl_csi_access_enable_2(ioaddr);
3778
3779         RTL_W8(DBG_REG, 0x06 | FIX_NAK_1 | FIX_NAK_2);
3780
3781         rtl_ephy_init(ioaddr, e_info_8168c_1, ARRAY_SIZE(e_info_8168c_1));
3782
3783         __rtl_hw_start_8168cp(ioaddr, pdev);
3784 }
3785
3786 static void rtl_hw_start_8168c_2(void __iomem *ioaddr, struct pci_dev *pdev)
3787 {
3788         static const struct ephy_info e_info_8168c_2[] = {
3789                 { 0x01, 0,      0x0001 },
3790                 { 0x03, 0x0400, 0x0220 }
3791         };
3792
3793         rtl_csi_access_enable_2(ioaddr);
3794
3795         rtl_ephy_init(ioaddr, e_info_8168c_2, ARRAY_SIZE(e_info_8168c_2));
3796
3797         __rtl_hw_start_8168cp(ioaddr, pdev);
3798 }
3799
3800 static void rtl_hw_start_8168c_3(void __iomem *ioaddr, struct pci_dev *pdev)
3801 {
3802         rtl_hw_start_8168c_2(ioaddr, pdev);
3803 }
3804
3805 static void rtl_hw_start_8168c_4(void __iomem *ioaddr, struct pci_dev *pdev)
3806 {
3807         rtl_csi_access_enable_2(ioaddr);
3808
3809         __rtl_hw_start_8168cp(ioaddr, pdev);
3810 }
3811
3812 static void rtl_hw_start_8168d(void __iomem *ioaddr, struct pci_dev *pdev)
3813 {
3814         rtl_csi_access_enable_2(ioaddr);
3815
3816         rtl_disable_clock_request(pdev);
3817
3818         RTL_W8(MaxTxPacketSize, TxPacketMax);
3819
3820         rtl_tx_performance_tweak(pdev, 0x5 << MAX_READ_REQUEST_SHIFT);
3821
3822         RTL_W16(CPlusCmd, RTL_R16(CPlusCmd) & ~R8168_CPCMD_QUIRK_MASK);
3823 }
3824
3825 static void rtl_hw_start_8168d_4(void __iomem *ioaddr, struct pci_dev *pdev)
3826 {
3827         static const struct ephy_info e_info_8168d_4[] = {
3828                 { 0x0b, ~0,     0x48 },
3829                 { 0x19, 0x20,   0x50 },
3830                 { 0x0c, ~0,     0x20 }
3831         };
3832         int i;
3833
3834         rtl_csi_access_enable_1(ioaddr);
3835
3836         rtl_tx_performance_tweak(pdev, 0x5 << MAX_READ_REQUEST_SHIFT);
3837
3838         RTL_W8(MaxTxPacketSize, TxPacketMax);
3839
3840         for (i = 0; i < ARRAY_SIZE(e_info_8168d_4); i++) {
3841                 const struct ephy_info *e = e_info_8168d_4 + i;
3842                 u16 w;
3843
3844                 w = rtl_ephy_read(ioaddr, e->offset);
3845                 rtl_ephy_write(ioaddr, 0x03, (w & e->mask) | e->bits);
3846         }
3847
3848         rtl_enable_clock_request(pdev);
3849 }
3850
3851 static void rtl_hw_start_8168(struct net_device *dev)
3852 {
3853         struct rtl8169_private *tp = netdev_priv(dev);
3854         void __iomem *ioaddr = tp->mmio_addr;
3855         struct pci_dev *pdev = tp->pci_dev;
3856
3857         RTL_W8(Cfg9346, Cfg9346_Unlock);
3858
3859         RTL_W8(MaxTxPacketSize, TxPacketMax);
3860
3861         rtl_set_rx_max_size(ioaddr, rx_buf_sz);
3862
3863         tp->cp_cmd |= RTL_R16(CPlusCmd) | PktCntrDisable | INTT_1;
3864
3865         RTL_W16(CPlusCmd, tp->cp_cmd);
3866
3867         RTL_W16(IntrMitigate, 0x5151);
3868
3869         /* Work around for RxFIFO overflow. */
3870         if (tp->mac_version == RTL_GIGA_MAC_VER_11 ||
3871             tp->mac_version == RTL_GIGA_MAC_VER_22) {
3872                 tp->intr_event |= RxFIFOOver | PCSTimeout;
3873                 tp->intr_event &= ~RxOverflow;
3874         }
3875
3876         rtl_set_rx_tx_desc_registers(tp, ioaddr);
3877
3878         rtl_set_rx_mode(dev);
3879
3880         RTL_W32(TxConfig, (TX_DMA_BURST << TxDMAShift) |
3881                 (InterFrameGap << TxInterFrameGapShift));
3882
3883         RTL_R8(IntrMask);
3884
3885         switch (tp->mac_version) {
3886         case RTL_GIGA_MAC_VER_11:
3887                 rtl_hw_start_8168bb(ioaddr, pdev);
3888         break;
3889
3890         case RTL_GIGA_MAC_VER_12:
3891         case RTL_GIGA_MAC_VER_17:
3892                 rtl_hw_start_8168bef(ioaddr, pdev);
3893         break;
3894
3895         case RTL_GIGA_MAC_VER_18:
3896                 rtl_hw_start_8168cp_1(ioaddr, pdev);
3897         break;
3898
3899         case RTL_GIGA_MAC_VER_19:
3900                 rtl_hw_start_8168c_1(ioaddr, pdev);
3901         break;
3902
3903         case RTL_GIGA_MAC_VER_20:
3904                 rtl_hw_start_8168c_2(ioaddr, pdev);
3905         break;
3906
3907         case RTL_GIGA_MAC_VER_21:
3908                 rtl_hw_start_8168c_3(ioaddr, pdev);
3909         break;
3910
3911         case RTL_GIGA_MAC_VER_22:
3912                 rtl_hw_start_8168c_4(ioaddr, pdev);
3913         break;
3914
3915         case RTL_GIGA_MAC_VER_23:
3916                 rtl_hw_start_8168cp_2(ioaddr, pdev);
3917         break;
3918
3919         case RTL_GIGA_MAC_VER_24:
3920                 rtl_hw_start_8168cp_3(ioaddr, pdev);
3921         break;
3922
3923         case RTL_GIGA_MAC_VER_25:
3924         case RTL_GIGA_MAC_VER_26:
3925         case RTL_GIGA_MAC_VER_27:
3926                 rtl_hw_start_8168d(ioaddr, pdev);
3927         break;
3928
3929         case RTL_GIGA_MAC_VER_28:
3930                 rtl_hw_start_8168d_4(ioaddr, pdev);
3931         break;
3932
3933         default:
3934                 printk(KERN_ERR PFX "%s: unknown chipset (mac_version = %d).\n",
3935                         dev->name, tp->mac_version);
3936         break;
3937         }
3938
3939         RTL_W8(ChipCmd, CmdTxEnb | CmdRxEnb);
3940
3941         RTL_W8(Cfg9346, Cfg9346_Lock);
3942
3943         RTL_W16(MultiIntr, RTL_R16(MultiIntr) & 0xF000);
3944
3945         RTL_W16(IntrMask, tp->intr_event);
3946 }
3947
3948 #define R810X_CPCMD_QUIRK_MASK (\
3949         EnableBist | \
3950         Mac_dbgo_oe | \
3951         Force_half_dup | \
3952         Force_rxflow_en | \
3953         Force_txflow_en | \
3954         Cxpl_dbg_sel | \
3955         ASF | \
3956         PktCntrDisable | \
3957         Mac_dbgo_sel)
3958
3959 static void rtl_hw_start_8102e_1(void __iomem *ioaddr, struct pci_dev *pdev)
3960 {
3961         static const struct ephy_info e_info_8102e_1[] = {
3962                 { 0x01, 0, 0x6e65 },
3963                 { 0x02, 0, 0x091f },
3964                 { 0x03, 0, 0xc2f9 },
3965                 { 0x06, 0, 0xafb5 },
3966                 { 0x07, 0, 0x0e00 },
3967                 { 0x19, 0, 0xec80 },
3968                 { 0x01, 0, 0x2e65 },
3969                 { 0x01, 0, 0x6e65 }
3970         };
3971         u8 cfg1;
3972
3973         rtl_csi_access_enable_2(ioaddr);
3974
3975         RTL_W8(DBG_REG, FIX_NAK_1);
3976
3977         rtl_tx_performance_tweak(pdev, 0x5 << MAX_READ_REQUEST_SHIFT);
3978
3979         RTL_W8(Config1,
3980                LEDS1 | LEDS0 | Speed_down | MEMMAP | IOMAP | VPD | PMEnable);
3981         RTL_W8(Config3, RTL_R8(Config3) & ~Beacon_en);
3982
3983         cfg1 = RTL_R8(Config1);
3984         if ((cfg1 & LEDS0) && (cfg1 & LEDS1))
3985                 RTL_W8(Config1, cfg1 & ~LEDS0);
3986
3987         rtl_ephy_init(ioaddr, e_info_8102e_1, ARRAY_SIZE(e_info_8102e_1));
3988 }
3989
3990 static void rtl_hw_start_8102e_2(void __iomem *ioaddr, struct pci_dev *pdev)
3991 {
3992         rtl_csi_access_enable_2(ioaddr);
3993
3994         rtl_tx_performance_tweak(pdev, 0x5 << MAX_READ_REQUEST_SHIFT);
3995
3996         RTL_W8(Config1, MEMMAP | IOMAP | VPD | PMEnable);
3997         RTL_W8(Config3, RTL_R8(Config3) & ~Beacon_en);
3998 }
3999
4000 static void rtl_hw_start_8102e_3(void __iomem *ioaddr, struct pci_dev *pdev)
4001 {
4002         rtl_hw_start_8102e_2(ioaddr, pdev);
4003
4004         rtl_ephy_write(ioaddr, 0x03, 0xc2f9);
4005 }
4006
4007 static void rtl_hw_start_8105e_1(void __iomem *ioaddr, struct pci_dev *pdev)
4008 {
4009         static const struct ephy_info e_info_8105e_1[] = {
4010                 { 0x07, 0, 0x4000 },
4011                 { 0x19, 0, 0x0200 },
4012                 { 0x19, 0, 0x0020 },
4013                 { 0x1e, 0, 0x2000 },
4014                 { 0x03, 0, 0x0001 },
4015                 { 0x19, 0, 0x0100 },
4016                 { 0x19, 0, 0x0004 },
4017                 { 0x0a, 0, 0x0020 }
4018         };
4019
4020         /* Force LAN exit from ASPM if Rx/Tx are not idel */
4021         RTL_W32(FuncEvent, RTL_R32(FuncEvent) | 0x002800);
4022
4023         /* disable Early Tally Counter */
4024         RTL_W32(FuncEvent, RTL_R32(FuncEvent) & ~0x010000);
4025
4026         RTL_W8(MCU, RTL_R8(MCU) | EN_NDP | EN_OOB_RESET);
4027         RTL_W8(DLLPR, RTL_R8(DLLPR) | PM_SWITCH);
4028
4029         rtl_ephy_init(ioaddr, e_info_8105e_1, ARRAY_SIZE(e_info_8105e_1));
4030 }
4031
4032 static void rtl_hw_start_8105e_2(void __iomem *ioaddr, struct pci_dev *pdev)
4033 {
4034         rtl_hw_start_8105e_1(ioaddr, pdev);
4035         rtl_ephy_write(ioaddr, 0x1e, rtl_ephy_read(ioaddr, 0x1e) | 0x8000);
4036 }
4037
4038 static void rtl_hw_start_8101(struct net_device *dev)
4039 {
4040         struct rtl8169_private *tp = netdev_priv(dev);
4041         void __iomem *ioaddr = tp->mmio_addr;
4042         struct pci_dev *pdev = tp->pci_dev;
4043
4044         if ((tp->mac_version == RTL_GIGA_MAC_VER_13) ||
4045             (tp->mac_version == RTL_GIGA_MAC_VER_16)) {
4046                 int cap = tp->pcie_cap;
4047
4048                 if (cap) {
4049                         pci_write_config_word(pdev, cap + PCI_EXP_DEVCTL,
4050                                               PCI_EXP_DEVCTL_NOSNOOP_EN);
4051                 }
4052         }
4053
4054         RTL_W8(Cfg9346, Cfg9346_Unlock);
4055
4056         switch (tp->mac_version) {
4057         case RTL_GIGA_MAC_VER_07:
4058                 rtl_hw_start_8102e_1(ioaddr, pdev);
4059                 break;
4060
4061         case RTL_GIGA_MAC_VER_08:
4062                 rtl_hw_start_8102e_3(ioaddr, pdev);
4063                 break;
4064
4065         case RTL_GIGA_MAC_VER_09:
4066                 rtl_hw_start_8102e_2(ioaddr, pdev);
4067                 break;
4068
4069         case RTL_GIGA_MAC_VER_29:
4070                 rtl_hw_start_8105e_1(ioaddr, pdev);
4071                 break;
4072         case RTL_GIGA_MAC_VER_30:
4073                 rtl_hw_start_8105e_2(ioaddr, pdev);
4074                 break;
4075         }
4076
4077         RTL_W8(Cfg9346, Cfg9346_Lock);
4078
4079         RTL_W8(MaxTxPacketSize, TxPacketMax);
4080
4081         rtl_set_rx_max_size(ioaddr, rx_buf_sz);
4082
4083         tp->cp_cmd &= ~R810X_CPCMD_QUIRK_MASK;
4084         RTL_W16(CPlusCmd, tp->cp_cmd);
4085
4086         RTL_W16(IntrMitigate, 0x0000);
4087
4088         rtl_set_rx_tx_desc_registers(tp, ioaddr);
4089
4090         RTL_W8(ChipCmd, CmdTxEnb | CmdRxEnb);
4091         rtl_set_rx_tx_config_registers(tp);
4092
4093         RTL_R8(IntrMask);
4094
4095         rtl_set_rx_mode(dev);
4096
4097         RTL_W16(MultiIntr, RTL_R16(MultiIntr) & 0xf000);
4098
4099         RTL_W16(IntrMask, tp->intr_event);
4100 }
4101
4102 static int rtl8169_change_mtu(struct net_device *dev, int new_mtu)
4103 {
4104         if (new_mtu < ETH_ZLEN || new_mtu > SafeMtu)
4105                 return -EINVAL;
4106
4107         dev->mtu = new_mtu;
4108         return 0;
4109 }
4110
4111 static inline void rtl8169_make_unusable_by_asic(struct RxDesc *desc)
4112 {
4113         desc->addr = cpu_to_le64(0x0badbadbadbadbadull);
4114         desc->opts1 &= ~cpu_to_le32(DescOwn | RsvdMask);
4115 }
4116
4117 static void rtl8169_free_rx_databuff(struct rtl8169_private *tp,
4118                                      void **data_buff, struct RxDesc *desc)
4119 {
4120         dma_unmap_single(&tp->pci_dev->dev, le64_to_cpu(desc->addr), rx_buf_sz,
4121                          DMA_FROM_DEVICE);
4122
4123         kfree(*data_buff);
4124         *data_buff = NULL;
4125         rtl8169_make_unusable_by_asic(desc);
4126 }
4127
4128 static inline void rtl8169_mark_to_asic(struct RxDesc *desc, u32 rx_buf_sz)
4129 {
4130         u32 eor = le32_to_cpu(desc->opts1) & RingEnd;
4131
4132         desc->opts1 = cpu_to_le32(DescOwn | eor | rx_buf_sz);
4133 }
4134
4135 static inline void rtl8169_map_to_asic(struct RxDesc *desc, dma_addr_t mapping,
4136                                        u32 rx_buf_sz)
4137 {
4138         desc->addr = cpu_to_le64(mapping);
4139         wmb();
4140         rtl8169_mark_to_asic(desc, rx_buf_sz);
4141 }
4142
4143 static inline void *rtl8169_align(void *data)
4144 {
4145         return (void *)ALIGN((long)data, 16);
4146 }
4147
4148 static struct sk_buff *rtl8169_alloc_rx_data(struct rtl8169_private *tp,
4149                                              struct RxDesc *desc)
4150 {
4151         void *data;
4152         dma_addr_t mapping;
4153         struct device *d = &tp->pci_dev->dev;
4154         struct net_device *dev = tp->dev;
4155         int node = dev->dev.parent ? dev_to_node(dev->dev.parent) : -1;
4156
4157         data = kmalloc_node(rx_buf_sz, GFP_KERNEL, node);
4158         if (!data)
4159                 return NULL;
4160
4161         if (rtl8169_align(data) != data) {
4162                 kfree(data);
4163                 data = kmalloc_node(rx_buf_sz + 15, GFP_KERNEL, node);
4164                 if (!data)
4165                         return NULL;
4166         }
4167
4168         mapping = dma_map_single(d, rtl8169_align(data), rx_buf_sz,
4169                                  DMA_FROM_DEVICE);
4170         if (unlikely(dma_mapping_error(d, mapping))) {
4171                 if (net_ratelimit())
4172                         netif_err(tp, drv, tp->dev, "Failed to map RX DMA!\n");
4173                 goto err_out;
4174         }
4175
4176         rtl8169_map_to_asic(desc, mapping, rx_buf_sz);
4177         return data;
4178
4179 err_out:
4180         kfree(data);
4181         return NULL;
4182 }
4183
4184 static void rtl8169_rx_clear(struct rtl8169_private *tp)
4185 {
4186         unsigned int i;
4187
4188         for (i = 0; i < NUM_RX_DESC; i++) {
4189                 if (tp->Rx_databuff[i]) {
4190                         rtl8169_free_rx_databuff(tp, tp->Rx_databuff + i,
4191                                             tp->RxDescArray + i);
4192                 }
4193         }
4194 }
4195
4196 static inline void rtl8169_mark_as_last_descriptor(struct RxDesc *desc)
4197 {
4198         desc->opts1 |= cpu_to_le32(RingEnd);
4199 }
4200
4201 static int rtl8169_rx_fill(struct rtl8169_private *tp)
4202 {
4203         unsigned int i;
4204
4205         for (i = 0; i < NUM_RX_DESC; i++) {
4206                 void *data;
4207
4208                 if (tp->Rx_databuff[i])
4209                         continue;
4210
4211                 data = rtl8169_alloc_rx_data(tp, tp->RxDescArray + i);
4212                 if (!data) {
4213                         rtl8169_make_unusable_by_asic(tp->RxDescArray + i);
4214                         goto err_out;
4215                 }
4216                 tp->Rx_databuff[i] = data;
4217         }
4218
4219         rtl8169_mark_as_last_descriptor(tp->RxDescArray + NUM_RX_DESC - 1);
4220         return 0;
4221
4222 err_out:
4223         rtl8169_rx_clear(tp);
4224         return -ENOMEM;
4225 }
4226
4227 static void rtl8169_init_ring_indexes(struct rtl8169_private *tp)
4228 {
4229         tp->dirty_tx = tp->dirty_rx = tp->cur_tx = tp->cur_rx = 0;
4230 }
4231
4232 static int rtl8169_init_ring(struct net_device *dev)
4233 {
4234         struct rtl8169_private *tp = netdev_priv(dev);
4235
4236         rtl8169_init_ring_indexes(tp);
4237
4238         memset(tp->tx_skb, 0x0, NUM_TX_DESC * sizeof(struct ring_info));
4239         memset(tp->Rx_databuff, 0x0, NUM_RX_DESC * sizeof(void *));
4240
4241         return rtl8169_rx_fill(tp);
4242 }
4243
4244 static void rtl8169_unmap_tx_skb(struct device *d, struct ring_info *tx_skb,
4245                                  struct TxDesc *desc)
4246 {
4247         unsigned int len = tx_skb->len;
4248
4249         dma_unmap_single(d, le64_to_cpu(desc->addr), len, DMA_TO_DEVICE);
4250
4251         desc->opts1 = 0x00;
4252         desc->opts2 = 0x00;
4253         desc->addr = 0x00;
4254         tx_skb->len = 0;
4255 }
4256
4257 static void rtl8169_tx_clear_range(struct rtl8169_private *tp, u32 start,
4258                                    unsigned int n)
4259 {
4260         unsigned int i;
4261
4262         for (i = 0; i < n; i++) {
4263                 unsigned int entry = (start + i) % NUM_TX_DESC;
4264                 struct ring_info *tx_skb = tp->tx_skb + entry;
4265                 unsigned int len = tx_skb->len;
4266
4267                 if (len) {
4268                         struct sk_buff *skb = tx_skb->skb;
4269
4270                         rtl8169_unmap_tx_skb(&tp->pci_dev->dev, tx_skb,
4271                                              tp->TxDescArray + entry);
4272                         if (skb) {
4273                                 tp->dev->stats.tx_dropped++;
4274                                 dev_kfree_skb(skb);
4275                                 tx_skb->skb = NULL;
4276                         }
4277                 }
4278         }
4279 }
4280
4281 static void rtl8169_tx_clear(struct rtl8169_private *tp)
4282 {
4283         rtl8169_tx_clear_range(tp, tp->dirty_tx, NUM_TX_DESC);
4284         tp->cur_tx = tp->dirty_tx = 0;
4285 }
4286
4287 static void rtl8169_schedule_work(struct net_device *dev, work_func_t task)
4288 {
4289         struct rtl8169_private *tp = netdev_priv(dev);
4290
4291         PREPARE_DELAYED_WORK(&tp->task, task);
4292         schedule_delayed_work(&tp->task, 4);
4293 }
4294
4295 static void rtl8169_wait_for_quiescence(struct net_device *dev)
4296 {
4297         struct rtl8169_private *tp = netdev_priv(dev);
4298         void __iomem *ioaddr = tp->mmio_addr;
4299
4300         synchronize_irq(dev->irq);
4301
4302         /* Wait for any pending NAPI task to complete */
4303         napi_disable(&tp->napi);
4304
4305         rtl8169_irq_mask_and_ack(ioaddr);
4306
4307         tp->intr_mask = 0xffff;
4308         RTL_W16(IntrMask, tp->intr_event);
4309         napi_enable(&tp->napi);
4310 }
4311
4312 static void rtl8169_reinit_task(struct work_struct *work)
4313 {
4314         struct rtl8169_private *tp =
4315                 container_of(work, struct rtl8169_private, task.work);
4316         struct net_device *dev = tp->dev;
4317         int ret;
4318
4319         rtnl_lock();
4320
4321         if (!netif_running(dev))
4322                 goto out_unlock;
4323
4324         rtl8169_wait_for_quiescence(dev);
4325         rtl8169_close(dev);
4326
4327         ret = rtl8169_open(dev);
4328         if (unlikely(ret < 0)) {
4329                 if (net_ratelimit())
4330                         netif_err(tp, drv, dev,
4331                                   "reinit failure (status = %d). Rescheduling\n",
4332                                   ret);
4333                 rtl8169_schedule_work(dev, rtl8169_reinit_task);
4334         }
4335
4336 out_unlock:
4337         rtnl_unlock();
4338 }
4339
4340 static void rtl8169_reset_task(struct work_struct *work)
4341 {
4342         struct rtl8169_private *tp =
4343                 container_of(work, struct rtl8169_private, task.work);
4344         struct net_device *dev = tp->dev;
4345
4346         rtnl_lock();
4347
4348         if (!netif_running(dev))
4349                 goto out_unlock;
4350
4351         rtl8169_wait_for_quiescence(dev);
4352
4353         rtl8169_rx_interrupt(dev, tp, tp->mmio_addr, ~(u32)0);
4354         rtl8169_tx_clear(tp);
4355
4356         if (tp->dirty_rx == tp->cur_rx) {
4357                 rtl8169_init_ring_indexes(tp);
4358                 rtl_hw_start(dev);
4359                 netif_wake_queue(dev);
4360                 rtl8169_check_link_status(dev, tp, tp->mmio_addr);
4361         } else {
4362                 if (net_ratelimit())
4363                         netif_emerg(tp, intr, dev, "Rx buffers shortage\n");
4364                 rtl8169_schedule_work(dev, rtl8169_reset_task);
4365         }
4366
4367 out_unlock:
4368         rtnl_unlock();
4369 }
4370
4371 static void rtl8169_tx_timeout(struct net_device *dev)
4372 {
4373         struct rtl8169_private *tp = netdev_priv(dev);
4374
4375         rtl8169_hw_reset(tp);
4376
4377         /* Let's wait a bit while any (async) irq lands on */
4378         rtl8169_schedule_work(dev, rtl8169_reset_task);
4379 }
4380
4381 static int rtl8169_xmit_frags(struct rtl8169_private *tp, struct sk_buff *skb,
4382                               u32 opts1)
4383 {
4384         struct skb_shared_info *info = skb_shinfo(skb);
4385         unsigned int cur_frag, entry;
4386         struct TxDesc * uninitialized_var(txd);
4387         struct device *d = &tp->pci_dev->dev;
4388
4389         entry = tp->cur_tx;
4390         for (cur_frag = 0; cur_frag < info->nr_frags; cur_frag++) {
4391                 skb_frag_t *frag = info->frags + cur_frag;
4392                 dma_addr_t mapping;
4393                 u32 status, len;
4394                 void *addr;
4395
4396                 entry = (entry + 1) % NUM_TX_DESC;
4397
4398                 txd = tp->TxDescArray + entry;
4399                 len = frag->size;
4400                 addr = ((void *) page_address(frag->page)) + frag->page_offset;
4401                 mapping = dma_map_single(d, addr, len, DMA_TO_DEVICE);
4402                 if (unlikely(dma_mapping_error(d, mapping))) {
4403                         if (net_ratelimit())
4404                                 netif_err(tp, drv, tp->dev,
4405                                           "Failed to map TX fragments DMA!\n");
4406                         goto err_out;
4407                 }
4408
4409                 /* anti gcc 2.95.3 bugware (sic) */
4410                 status = opts1 | len | (RingEnd * !((entry + 1) % NUM_TX_DESC));
4411
4412                 txd->opts1 = cpu_to_le32(status);
4413                 txd->addr = cpu_to_le64(mapping);
4414
4415                 tp->tx_skb[entry].len = len;
4416         }
4417
4418         if (cur_frag) {
4419                 tp->tx_skb[entry].skb = skb;
4420                 txd->opts1 |= cpu_to_le32(LastFrag);
4421         }
4422
4423         return cur_frag;
4424
4425 err_out:
4426         rtl8169_tx_clear_range(tp, tp->cur_tx + 1, cur_frag);
4427         return -EIO;
4428 }
4429
4430 static inline u32 rtl8169_tso_csum(struct sk_buff *skb, struct net_device *dev)
4431 {
4432         if (dev->features & NETIF_F_TSO) {
4433                 u32 mss = skb_shinfo(skb)->gso_size;
4434
4435                 if (mss)
4436                         return LargeSend | ((mss & MSSMask) << MSSShift);
4437         }
4438         if (skb->ip_summed == CHECKSUM_PARTIAL) {
4439                 const struct iphdr *ip = ip_hdr(skb);
4440
4441                 if (ip->protocol == IPPROTO_TCP)
4442                         return IPCS | TCPCS;
4443                 else if (ip->protocol == IPPROTO_UDP)
4444                         return IPCS | UDPCS;
4445                 WARN_ON(1);     /* we need a WARN() */
4446         }
4447         return 0;
4448 }
4449
4450 static netdev_tx_t rtl8169_start_xmit(struct sk_buff *skb,
4451                                       struct net_device *dev)
4452 {
4453         struct rtl8169_private *tp = netdev_priv(dev);
4454         unsigned int entry = tp->cur_tx % NUM_TX_DESC;
4455         struct TxDesc *txd = tp->TxDescArray + entry;
4456         void __iomem *ioaddr = tp->mmio_addr;
4457         struct device *d = &tp->pci_dev->dev;
4458         dma_addr_t mapping;
4459         u32 status, len;
4460         u32 opts1;
4461         int frags;
4462
4463         if (unlikely(TX_BUFFS_AVAIL(tp) < skb_shinfo(skb)->nr_frags)) {
4464                 netif_err(tp, drv, dev, "BUG! Tx Ring full when queue awake!\n");
4465                 goto err_stop_0;
4466         }
4467
4468         if (unlikely(le32_to_cpu(txd->opts1) & DescOwn))
4469                 goto err_stop_0;
4470
4471         len = skb_headlen(skb);
4472         mapping = dma_map_single(d, skb->data, len, DMA_TO_DEVICE);
4473         if (unlikely(dma_mapping_error(d, mapping))) {
4474                 if (net_ratelimit())
4475                         netif_err(tp, drv, dev, "Failed to map TX DMA!\n");
4476                 goto err_dma_0;
4477         }
4478
4479         tp->tx_skb[entry].len = len;
4480         txd->addr = cpu_to_le64(mapping);
4481         txd->opts2 = cpu_to_le32(rtl8169_tx_vlan_tag(tp, skb));
4482
4483         opts1 = DescOwn | rtl8169_tso_csum(skb, dev);
4484
4485         frags = rtl8169_xmit_frags(tp, skb, opts1);
4486         if (frags < 0)
4487                 goto err_dma_1;
4488         else if (frags)
4489                 opts1 |= FirstFrag;
4490         else {
4491                 opts1 |= FirstFrag | LastFrag;
4492                 tp->tx_skb[entry].skb = skb;
4493         }
4494
4495         wmb();
4496
4497         /* anti gcc 2.95.3 bugware (sic) */
4498         status = opts1 | len | (RingEnd * !((entry + 1) % NUM_TX_DESC));
4499         txd->opts1 = cpu_to_le32(status);
4500
4501         tp->cur_tx += frags + 1;
4502
4503         wmb();
4504
4505         RTL_W8(TxPoll, NPQ);    /* set polling bit */
4506
4507         if (TX_BUFFS_AVAIL(tp) < MAX_SKB_FRAGS) {
4508                 netif_stop_queue(dev);
4509                 smp_rmb();
4510                 if (TX_BUFFS_AVAIL(tp) >= MAX_SKB_FRAGS)
4511                         netif_wake_queue(dev);
4512         }
4513
4514         return NETDEV_TX_OK;
4515
4516 err_dma_1:
4517         rtl8169_unmap_tx_skb(d, tp->tx_skb + entry, txd);
4518 err_dma_0:
4519         dev_kfree_skb(skb);
4520         dev->stats.tx_dropped++;
4521         return NETDEV_TX_OK;
4522
4523 err_stop_0:
4524         netif_stop_queue(dev);
4525         dev->stats.tx_dropped++;
4526         return NETDEV_TX_BUSY;
4527 }
4528
4529 static void rtl8169_pcierr_interrupt(struct net_device *dev)
4530 {
4531         struct rtl8169_private *tp = netdev_priv(dev);
4532         struct pci_dev *pdev = tp->pci_dev;
4533         u16 pci_status, pci_cmd;
4534
4535         pci_read_config_word(pdev, PCI_COMMAND, &pci_cmd);
4536         pci_read_config_word(pdev, PCI_STATUS, &pci_status);
4537
4538         netif_err(tp, intr, dev, "PCI error (cmd = 0x%04x, status = 0x%04x)\n",
4539                   pci_cmd, pci_status);
4540
4541         /*
4542          * The recovery sequence below admits a very elaborated explanation:
4543          * - it seems to work;
4544          * - I did not see what else could be done;
4545          * - it makes iop3xx happy.
4546          *
4547          * Feel free to adjust to your needs.
4548          */
4549         if (pdev->broken_parity_status)
4550                 pci_cmd &= ~PCI_COMMAND_PARITY;
4551         else
4552                 pci_cmd |= PCI_COMMAND_SERR | PCI_COMMAND_PARITY;
4553
4554         pci_write_config_word(pdev, PCI_COMMAND, pci_cmd);
4555
4556         pci_write_config_word(pdev, PCI_STATUS,
4557                 pci_status & (PCI_STATUS_DETECTED_PARITY |
4558                 PCI_STATUS_SIG_SYSTEM_ERROR | PCI_STATUS_REC_MASTER_ABORT |
4559                 PCI_STATUS_REC_TARGET_ABORT | PCI_STATUS_SIG_TARGET_ABORT));
4560
4561         /* The infamous DAC f*ckup only happens at boot time */
4562         if ((tp->cp_cmd & PCIDAC) && !tp->dirty_rx && !tp->cur_rx) {
4563                 void __iomem *ioaddr = tp->mmio_addr;
4564
4565                 netif_info(tp, intr, dev, "disabling PCI DAC\n");
4566                 tp->cp_cmd &= ~PCIDAC;
4567                 RTL_W16(CPlusCmd, tp->cp_cmd);
4568                 dev->features &= ~NETIF_F_HIGHDMA;
4569         }
4570
4571         rtl8169_hw_reset(tp);
4572
4573         rtl8169_schedule_work(dev, rtl8169_reinit_task);
4574 }
4575
4576 static void rtl8169_tx_interrupt(struct net_device *dev,
4577                                  struct rtl8169_private *tp,
4578                                  void __iomem *ioaddr)
4579 {
4580         unsigned int dirty_tx, tx_left;
4581
4582         dirty_tx = tp->dirty_tx;
4583         smp_rmb();
4584         tx_left = tp->cur_tx - dirty_tx;
4585
4586         while (tx_left > 0) {
4587                 unsigned int entry = dirty_tx % NUM_TX_DESC;
4588                 struct ring_info *tx_skb = tp->tx_skb + entry;
4589                 u32 status;
4590
4591                 rmb();
4592                 status = le32_to_cpu(tp->TxDescArray[entry].opts1);
4593                 if (status & DescOwn)
4594                         break;
4595
4596                 rtl8169_unmap_tx_skb(&tp->pci_dev->dev, tx_skb,
4597                                      tp->TxDescArray + entry);
4598                 if (status & LastFrag) {
4599                         dev->stats.tx_packets++;
4600                         dev->stats.tx_bytes += tx_skb->skb->len;
4601                         dev_kfree_skb(tx_skb->skb);
4602                         tx_skb->skb = NULL;
4603                 }
4604                 dirty_tx++;
4605                 tx_left--;
4606         }
4607
4608         if (tp->dirty_tx != dirty_tx) {
4609                 tp->dirty_tx = dirty_tx;
4610                 smp_wmb();
4611                 if (netif_queue_stopped(dev) &&
4612                     (TX_BUFFS_AVAIL(tp) >= MAX_SKB_FRAGS)) {
4613                         netif_wake_queue(dev);
4614                 }
4615                 /*
4616                  * 8168 hack: TxPoll requests are lost when the Tx packets are
4617                  * too close. Let's kick an extra TxPoll request when a burst
4618                  * of start_xmit activity is detected (if it is not detected,
4619                  * it is slow enough). -- FR
4620                  */
4621                 smp_rmb();
4622                 if (tp->cur_tx != dirty_tx)
4623                         RTL_W8(TxPoll, NPQ);
4624         }
4625 }
4626
4627 static inline int rtl8169_fragmented_frame(u32 status)
4628 {
4629         return (status & (FirstFrag | LastFrag)) != (FirstFrag | LastFrag);
4630 }
4631
4632 static inline void rtl8169_rx_csum(struct sk_buff *skb, u32 opts1)
4633 {
4634         u32 status = opts1 & RxProtoMask;
4635
4636         if (((status == RxProtoTCP) && !(opts1 & TCPFail)) ||
4637             ((status == RxProtoUDP) && !(opts1 & UDPFail)))
4638                 skb->ip_summed = CHECKSUM_UNNECESSARY;
4639         else
4640                 skb_checksum_none_assert(skb);
4641 }
4642
4643 static struct sk_buff *rtl8169_try_rx_copy(void *data,
4644                                            struct rtl8169_private *tp,
4645                                            int pkt_size,
4646                                            dma_addr_t addr)
4647 {
4648         struct sk_buff *skb;
4649         struct device *d = &tp->pci_dev->dev;
4650
4651         data = rtl8169_align(data);
4652         dma_sync_single_for_cpu(d, addr, pkt_size, DMA_FROM_DEVICE);
4653         prefetch(data);
4654         skb = netdev_alloc_skb_ip_align(tp->dev, pkt_size);
4655         if (skb)
4656                 memcpy(skb->data, data, pkt_size);
4657         dma_sync_single_for_device(d, addr, pkt_size, DMA_FROM_DEVICE);
4658
4659         return skb;
4660 }
4661
4662 /*
4663  * Warning : rtl8169_rx_interrupt() might be called :
4664  * 1) from NAPI (softirq) context
4665  *      (polling = 1 : we should call netif_receive_skb())
4666  * 2) from process context (rtl8169_reset_task())
4667  *      (polling = 0 : we must call netif_rx() instead)
4668  */
4669 static int rtl8169_rx_interrupt(struct net_device *dev,
4670                                 struct rtl8169_private *tp,
4671                                 void __iomem *ioaddr, u32 budget)
4672 {
4673         unsigned int cur_rx, rx_left;
4674         unsigned int count;
4675         int polling = (budget != ~(u32)0) ? 1 : 0;
4676
4677         cur_rx = tp->cur_rx;
4678         rx_left = NUM_RX_DESC + tp->dirty_rx - cur_rx;
4679         rx_left = min(rx_left, budget);
4680
4681         for (; rx_left > 0; rx_left--, cur_rx++) {
4682                 unsigned int entry = cur_rx % NUM_RX_DESC;
4683                 struct RxDesc *desc = tp->RxDescArray + entry;
4684                 u32 status;
4685
4686                 rmb();
4687                 status = le32_to_cpu(desc->opts1);
4688
4689                 if (status & DescOwn)
4690                         break;
4691                 if (unlikely(status & RxRES)) {
4692                         netif_info(tp, rx_err, dev, "Rx ERROR. status = %08x\n",
4693                                    status);
4694                         dev->stats.rx_errors++;
4695                         if (status & (RxRWT | RxRUNT))
4696                                 dev->stats.rx_length_errors++;
4697                         if (status & RxCRC)
4698                                 dev->stats.rx_crc_errors++;
4699                         if (status & RxFOVF) {
4700                                 rtl8169_schedule_work(dev, rtl8169_reset_task);
4701                                 dev->stats.rx_fifo_errors++;
4702                         }
4703                         rtl8169_mark_to_asic(desc, rx_buf_sz);
4704                 } else {
4705                         struct sk_buff *skb;
4706                         dma_addr_t addr = le64_to_cpu(desc->addr);
4707                         int pkt_size = (status & 0x00001FFF) - 4;
4708
4709                         /*
4710                          * The driver does not support incoming fragmented
4711                          * frames. They are seen as a symptom of over-mtu
4712                          * sized frames.
4713                          */
4714                         if (unlikely(rtl8169_fragmented_frame(status))) {
4715                                 dev->stats.rx_dropped++;
4716                                 dev->stats.rx_length_errors++;
4717                                 rtl8169_mark_to_asic(desc, rx_buf_sz);
4718                                 continue;
4719                         }
4720
4721                         skb = rtl8169_try_rx_copy(tp->Rx_databuff[entry],
4722                                                   tp, pkt_size, addr);
4723                         rtl8169_mark_to_asic(desc, rx_buf_sz);
4724                         if (!skb) {
4725                                 dev->stats.rx_dropped++;
4726                                 continue;
4727                         }
4728
4729                         rtl8169_rx_csum(skb, status);
4730                         skb_put(skb, pkt_size);
4731                         skb->protocol = eth_type_trans(skb, dev);
4732
4733                         rtl8169_rx_vlan_tag(desc, skb);
4734
4735                         if (likely(polling))
4736                                 napi_gro_receive(&tp->napi, skb);
4737                         else
4738                                 netif_rx(skb);
4739
4740                         dev->stats.rx_bytes += pkt_size;
4741                         dev->stats.rx_packets++;
4742                 }
4743
4744                 /* Work around for AMD plateform. */
4745                 if ((desc->opts2 & cpu_to_le32(0xfffe000)) &&
4746                     (tp->mac_version == RTL_GIGA_MAC_VER_05)) {
4747                         desc->opts2 = 0;
4748                         cur_rx++;
4749                 }
4750         }
4751
4752         count = cur_rx - tp->cur_rx;
4753         tp->cur_rx = cur_rx;
4754
4755         tp->dirty_rx += count;
4756
4757         return count;
4758 }
4759
4760 static irqreturn_t rtl8169_interrupt(int irq, void *dev_instance)
4761 {
4762         struct net_device *dev = dev_instance;
4763         struct rtl8169_private *tp = netdev_priv(dev);
4764         void __iomem *ioaddr = tp->mmio_addr;
4765         int handled = 0;
4766         int status;
4767
4768         /* loop handling interrupts until we have no new ones or
4769          * we hit a invalid/hotplug case.
4770          */
4771         status = RTL_R16(IntrStatus);
4772         while (status && status != 0xffff) {
4773                 handled = 1;
4774
4775                 /* Handle all of the error cases first. These will reset
4776                  * the chip, so just exit the loop.
4777                  */
4778                 if (unlikely(!netif_running(dev))) {
4779                         rtl8169_asic_down(ioaddr);
4780                         break;
4781                 }
4782
4783                 if (unlikely(status & RxFIFOOver)) {
4784                         switch (tp->mac_version) {
4785                         /* Work around for rx fifo overflow */
4786                         case RTL_GIGA_MAC_VER_11:
4787                         case RTL_GIGA_MAC_VER_22:
4788                         case RTL_GIGA_MAC_VER_26:
4789                                 netif_stop_queue(dev);
4790                                 rtl8169_tx_timeout(dev);
4791                                 goto done;
4792                         /* Testers needed. */
4793                         case RTL_GIGA_MAC_VER_17:
4794                         case RTL_GIGA_MAC_VER_19:
4795                         case RTL_GIGA_MAC_VER_20:
4796                         case RTL_GIGA_MAC_VER_21:
4797                         case RTL_GIGA_MAC_VER_23:
4798                         case RTL_GIGA_MAC_VER_24:
4799                         case RTL_GIGA_MAC_VER_27:
4800                         case RTL_GIGA_MAC_VER_28:
4801                         /* Experimental science. Pktgen proof. */
4802                         case RTL_GIGA_MAC_VER_12:
4803                         case RTL_GIGA_MAC_VER_25:
4804                                 if (status == RxFIFOOver)
4805                                         goto done;
4806                                 break;
4807                         default:
4808                                 break;
4809                         }
4810                 }
4811
4812                 if (unlikely(status & SYSErr)) {
4813                         rtl8169_pcierr_interrupt(dev);
4814                         break;
4815                 }
4816
4817                 if (status & LinkChg)
4818                         __rtl8169_check_link_status(dev, tp, ioaddr, true);
4819
4820                 /* We need to see the lastest version of tp->intr_mask to
4821                  * avoid ignoring an MSI interrupt and having to wait for
4822                  * another event which may never come.
4823                  */
4824                 smp_rmb();
4825                 if (status & tp->intr_mask & tp->napi_event) {
4826                         RTL_W16(IntrMask, tp->intr_event & ~tp->napi_event);
4827                         tp->intr_mask = ~tp->napi_event;
4828
4829                         if (likely(napi_schedule_prep(&tp->napi)))
4830                                 __napi_schedule(&tp->napi);
4831                         else
4832                                 netif_info(tp, intr, dev,
4833                                            "interrupt %04x in poll\n", status);
4834                 }
4835
4836                 /* We only get a new MSI interrupt when all active irq
4837                  * sources on the chip have been acknowledged. So, ack
4838                  * everything we've seen and check if new sources have become
4839                  * active to avoid blocking all interrupts from the chip.
4840                  */
4841                 RTL_W16(IntrStatus,
4842                         (status & RxFIFOOver) ? (status | RxOverflow) : status);
4843                 status = RTL_R16(IntrStatus);
4844         }
4845 done:
4846         return IRQ_RETVAL(handled);
4847 }
4848
4849 static int rtl8169_poll(struct napi_struct *napi, int budget)
4850 {
4851         struct rtl8169_private *tp = container_of(napi, struct rtl8169_private, napi);
4852         struct net_device *dev = tp->dev;
4853         void __iomem *ioaddr = tp->mmio_addr;
4854         int work_done;
4855
4856         work_done = rtl8169_rx_interrupt(dev, tp, ioaddr, (u32) budget);
4857         rtl8169_tx_interrupt(dev, tp, ioaddr);
4858
4859         if (work_done < budget) {
4860                 napi_complete(napi);
4861
4862                 /* We need for force the visibility of tp->intr_mask
4863                  * for other CPUs, as we can loose an MSI interrupt
4864                  * and potentially wait for a retransmit timeout if we don't.
4865                  * The posted write to IntrMask is safe, as it will
4866                  * eventually make it to the chip and we won't loose anything
4867                  * until it does.
4868                  */
4869                 tp->intr_mask = 0xffff;
4870                 wmb();
4871                 RTL_W16(IntrMask, tp->intr_event);
4872         }
4873
4874         return work_done;
4875 }
4876
4877 static void rtl8169_rx_missed(struct net_device *dev, void __iomem *ioaddr)
4878 {
4879         struct rtl8169_private *tp = netdev_priv(dev);
4880
4881         if (tp->mac_version > RTL_GIGA_MAC_VER_06)
4882                 return;
4883
4884         dev->stats.rx_missed_errors += (RTL_R32(RxMissed) & 0xffffff);
4885         RTL_W32(RxMissed, 0);
4886 }
4887
4888 static void rtl8169_down(struct net_device *dev)
4889 {
4890         struct rtl8169_private *tp = netdev_priv(dev);
4891         void __iomem *ioaddr = tp->mmio_addr;
4892
4893         rtl8169_delete_timer(dev);
4894
4895         netif_stop_queue(dev);
4896
4897         napi_disable(&tp->napi);
4898
4899         spin_lock_irq(&tp->lock);
4900
4901         rtl8169_asic_down(ioaddr);
4902         /*
4903          * At this point device interrupts can not be enabled in any function,
4904          * as netif_running is not true (rtl8169_interrupt, rtl8169_reset_task,
4905          * rtl8169_reinit_task) and napi is disabled (rtl8169_poll).
4906          */
4907         rtl8169_rx_missed(dev, ioaddr);
4908
4909         spin_unlock_irq(&tp->lock);
4910
4911         synchronize_irq(dev->irq);
4912
4913         /* Give a racing hard_start_xmit a few cycles to complete. */
4914         synchronize_sched();  /* FIXME: should this be synchronize_irq()? */
4915
4916         rtl8169_tx_clear(tp);
4917
4918         rtl8169_rx_clear(tp);
4919
4920         rtl_pll_power_down(tp);
4921 }
4922
4923 static int rtl8169_close(struct net_device *dev)
4924 {
4925         struct rtl8169_private *tp = netdev_priv(dev);
4926         struct pci_dev *pdev = tp->pci_dev;
4927
4928         pm_runtime_get_sync(&pdev->dev);
4929
4930         /* update counters before going down */
4931         rtl8169_update_counters(dev);
4932
4933         rtl8169_down(dev);
4934
4935         free_irq(dev->irq, dev);
4936
4937         dma_free_coherent(&pdev->dev, R8169_RX_RING_BYTES, tp->RxDescArray,
4938                           tp->RxPhyAddr);
4939         dma_free_coherent(&pdev->dev, R8169_TX_RING_BYTES, tp->TxDescArray,
4940                           tp->TxPhyAddr);
4941         tp->TxDescArray = NULL;
4942         tp->RxDescArray = NULL;
4943
4944         pm_runtime_put_sync(&pdev->dev);
4945
4946         return 0;
4947 }
4948
4949 static void rtl_set_rx_mode(struct net_device *dev)
4950 {
4951         struct rtl8169_private *tp = netdev_priv(dev);
4952         void __iomem *ioaddr = tp->mmio_addr;
4953         unsigned long flags;
4954         u32 mc_filter[2];       /* Multicast hash filter */
4955         int rx_mode;
4956         u32 tmp = 0;
4957
4958         if (dev->flags & IFF_PROMISC) {
4959                 /* Unconditionally log net taps. */
4960                 netif_notice(tp, link, dev, "Promiscuous mode enabled\n");
4961                 rx_mode =
4962                     AcceptBroadcast | AcceptMulticast | AcceptMyPhys |
4963                     AcceptAllPhys;
4964                 mc_filter[1] = mc_filter[0] = 0xffffffff;
4965         } else if ((netdev_mc_count(dev) > multicast_filter_limit) ||
4966                    (dev->flags & IFF_ALLMULTI)) {
4967                 /* Too many to filter perfectly -- accept all multicasts. */
4968                 rx_mode = AcceptBroadcast | AcceptMulticast | AcceptMyPhys;
4969                 mc_filter[1] = mc_filter[0] = 0xffffffff;
4970         } else {
4971                 struct netdev_hw_addr *ha;
4972
4973                 rx_mode = AcceptBroadcast | AcceptMyPhys;
4974                 mc_filter[1] = mc_filter[0] = 0;
4975                 netdev_for_each_mc_addr(ha, dev) {
4976                         int bit_nr = ether_crc(ETH_ALEN, ha->addr) >> 26;
4977                         mc_filter[bit_nr >> 5] |= 1 << (bit_nr & 31);
4978                         rx_mode |= AcceptMulticast;
4979                 }
4980         }
4981
4982         spin_lock_irqsave(&tp->lock, flags);
4983
4984         tmp = rtl8169_rx_config | rx_mode |
4985               (RTL_R32(RxConfig) & rtl_chip_info[tp->chipset].RxConfigMask);
4986
4987         if (tp->mac_version > RTL_GIGA_MAC_VER_06) {
4988                 u32 data = mc_filter[0];
4989
4990                 mc_filter[0] = swab32(mc_filter[1]);
4991                 mc_filter[1] = swab32(data);
4992         }
4993
4994         RTL_W32(MAR0 + 4, mc_filter[1]);
4995         RTL_W32(MAR0 + 0, mc_filter[0]);
4996
4997         RTL_W32(RxConfig, tmp);
4998
4999         spin_unlock_irqrestore(&tp->lock, flags);
5000 }
5001
5002 /**
5003  *  rtl8169_get_stats - Get rtl8169 read/write statistics
5004  *  @dev: The Ethernet Device to get statistics for
5005  *
5006  *  Get TX/RX statistics for rtl8169
5007  */
5008 static struct net_device_stats *rtl8169_get_stats(struct net_device *dev)
5009 {
5010         struct rtl8169_private *tp = netdev_priv(dev);
5011         void __iomem *ioaddr = tp->mmio_addr;
5012         unsigned long flags;
5013
5014         if (netif_running(dev)) {
5015                 spin_lock_irqsave(&tp->lock, flags);
5016                 rtl8169_rx_missed(dev, ioaddr);
5017                 spin_unlock_irqrestore(&tp->lock, flags);
5018         }
5019
5020         return &dev->stats;
5021 }
5022
5023 static void rtl8169_net_suspend(struct net_device *dev)
5024 {
5025         struct rtl8169_private *tp = netdev_priv(dev);
5026
5027         if (!netif_running(dev))
5028                 return;
5029
5030         rtl_pll_power_down(tp);
5031
5032         netif_device_detach(dev);
5033         netif_stop_queue(dev);
5034 }
5035
5036 #ifdef CONFIG_PM
5037
5038 static int rtl8169_suspend(struct device *device)
5039 {
5040         struct pci_dev *pdev = to_pci_dev(device);
5041         struct net_device *dev = pci_get_drvdata(pdev);
5042
5043         rtl8169_net_suspend(dev);
5044
5045         return 0;
5046 }
5047
5048 static void __rtl8169_resume(struct net_device *dev)
5049 {
5050         struct rtl8169_private *tp = netdev_priv(dev);
5051
5052         netif_device_attach(dev);
5053
5054         rtl_pll_power_up(tp);
5055
5056         rtl8169_schedule_work(dev, rtl8169_reset_task);
5057 }
5058
5059 static int rtl8169_resume(struct device *device)
5060 {
5061         struct pci_dev *pdev = to_pci_dev(device);
5062         struct net_device *dev = pci_get_drvdata(pdev);
5063         struct rtl8169_private *tp = netdev_priv(dev);
5064
5065         rtl8169_init_phy(dev, tp);
5066
5067         if (netif_running(dev))
5068                 __rtl8169_resume(dev);
5069
5070         return 0;
5071 }
5072
5073 static int rtl8169_runtime_suspend(struct device *device)
5074 {
5075         struct pci_dev *pdev = to_pci_dev(device);
5076         struct net_device *dev = pci_get_drvdata(pdev);
5077         struct rtl8169_private *tp = netdev_priv(dev);
5078
5079         if (!tp->TxDescArray)
5080                 return 0;
5081
5082         spin_lock_irq(&tp->lock);
5083         tp->saved_wolopts = __rtl8169_get_wol(tp);
5084         __rtl8169_set_wol(tp, WAKE_ANY);
5085         spin_unlock_irq(&tp->lock);
5086
5087         rtl8169_net_suspend(dev);
5088
5089         return 0;
5090 }
5091
5092 static int rtl8169_runtime_resume(struct device *device)
5093 {
5094         struct pci_dev *pdev = to_pci_dev(device);
5095         struct net_device *dev = pci_get_drvdata(pdev);
5096         struct rtl8169_private *tp = netdev_priv(dev);
5097
5098         if (!tp->TxDescArray)
5099                 return 0;
5100
5101         spin_lock_irq(&tp->lock);
5102         __rtl8169_set_wol(tp, tp->saved_wolopts);
5103         tp->saved_wolopts = 0;
5104         spin_unlock_irq(&tp->lock);
5105
5106         rtl8169_init_phy(dev, tp);
5107
5108         __rtl8169_resume(dev);
5109
5110         return 0;
5111 }
5112
5113 static int rtl8169_runtime_idle(struct device *device)
5114 {
5115         struct pci_dev *pdev = to_pci_dev(device);
5116         struct net_device *dev = pci_get_drvdata(pdev);
5117         struct rtl8169_private *tp = netdev_priv(dev);
5118
5119         return tp->TxDescArray ? -EBUSY : 0;
5120 }
5121
5122 static const struct dev_pm_ops rtl8169_pm_ops = {
5123         .suspend = rtl8169_suspend,
5124         .resume = rtl8169_resume,
5125         .freeze = rtl8169_suspend,
5126         .thaw = rtl8169_resume,
5127         .poweroff = rtl8169_suspend,
5128         .restore = rtl8169_resume,
5129         .runtime_suspend = rtl8169_runtime_suspend,
5130         .runtime_resume = rtl8169_runtime_resume,
5131         .runtime_idle = rtl8169_runtime_idle,
5132 };
5133
5134 #define RTL8169_PM_OPS  (&rtl8169_pm_ops)
5135
5136 #else /* !CONFIG_PM */
5137
5138 #define RTL8169_PM_OPS  NULL
5139
5140 #endif /* !CONFIG_PM */
5141
5142 static void rtl_shutdown(struct pci_dev *pdev)
5143 {
5144         struct net_device *dev = pci_get_drvdata(pdev);
5145         struct rtl8169_private *tp = netdev_priv(dev);
5146         void __iomem *ioaddr = tp->mmio_addr;
5147
5148         rtl8169_net_suspend(dev);
5149
5150         /* restore original MAC address */
5151         rtl_rar_set(tp, dev->perm_addr);
5152
5153         spin_lock_irq(&tp->lock);
5154
5155         rtl8169_asic_down(ioaddr);
5156
5157         spin_unlock_irq(&tp->lock);
5158
5159         if (system_state == SYSTEM_POWER_OFF) {
5160                 /* WoL fails with some 8168 when the receiver is disabled. */
5161                 if (tp->features & RTL_FEATURE_WOL) {
5162                         pci_clear_master(pdev);
5163
5164                         RTL_W8(ChipCmd, CmdRxEnb);
5165                         /* PCI commit */
5166                         RTL_R8(ChipCmd);
5167                 }
5168
5169                 pci_wake_from_d3(pdev, true);
5170                 pci_set_power_state(pdev, PCI_D3hot);
5171         }
5172 }
5173
5174 static struct pci_driver rtl8169_pci_driver = {
5175         .name           = MODULENAME,
5176         .id_table       = rtl8169_pci_tbl,
5177         .probe          = rtl8169_init_one,
5178         .remove         = __devexit_p(rtl8169_remove_one),
5179         .shutdown       = rtl_shutdown,
5180         .driver.pm      = RTL8169_PM_OPS,
5181 };
5182
5183 static int __init rtl8169_init_module(void)
5184 {
5185         return pci_register_driver(&rtl8169_pci_driver);
5186 }
5187
5188 static void __exit rtl8169_cleanup_module(void)
5189 {
5190         pci_unregister_driver(&rtl8169_pci_driver);
5191 }
5192
5193 module_init(rtl8169_init_module);
5194 module_exit(rtl8169_cleanup_module);