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
  29 #include <asm/system.h>
  30 #include <asm/io.h>
  31 #include <asm/irq.h>
  32
  33 #define RTL8169_VERSION "2.3LK-NAPI"
  34 #define MODULENAME "r8169"
  35 #define PFX MODULENAME ": "
  36
  37 #define FIRMWARE_8168D_1        "rtl_nic/rtl8168d-1.fw"
  38 #define FIRMWARE_8168D_2        "rtl_nic/rtl8168d-2.fw"
  39
  40 #ifdef RTL8169_DEBUG
  41 #define assert(expr) \
  42         if (!(expr)) {                                  \
  43                 printk( "Assertion failed! %s,%s,%s,line=%d\n", \
  44                 #expr,__FILE__,__func__,__LINE__);              \
  45         }
  46 #define dprintk(fmt, args...) \
  47         do { printk(KERN_DEBUG PFX fmt, ## args); } while (0)
  48 #else
  49 #define assert(expr) do {} while (0)
  50 #define dprintk(fmt, args...)   do {} while (0)
  51 #endif /* RTL8169_DEBUG */
  52
  53 #define R8169_MSG_DEFAULT \
  54         (NETIF_MSG_DRV | NETIF_MSG_PROBE | NETIF_MSG_IFUP | NETIF_MSG_IFDOWN)
  55
  56 #define TX_BUFFS_AVAIL(tp) \
  57         (tp->dirty_tx + NUM_TX_DESC - tp->cur_tx - 1)
  58
  59 /* Maximum number of multicast addresses to filter (vs. Rx-all-multicast).
  60    The RTL chips use a 64 element hash table based on the Ethernet CRC. */
  61 static const int multicast_filter_limit = 32;
  62
  63 /* MAC address length */
  64 #define MAC_ADDR_LEN    6
  65
  66 #define MAX_READ_REQUEST_SHIFT  12
  67 #define RX_FIFO_THRESH  7       /* 7 means NO threshold, Rx buffer level before first PCI xfer. */
  68 #define RX_DMA_BURST    6       /* Maximum PCI burst, '6' is 1024 */
  69 #define TX_DMA_BURST    6       /* Maximum PCI burst, '6' is 1024 */
  70 #define SafeMtu         0x1c20  /* ... actually life sucks beyond ~7k */
  71 #define InterFrameGap   0x03    /* 3 means InterFrameGap = the shortest one */
  72
  73 #define R8169_REGS_SIZE         256
  74 #define R8169_NAPI_WEIGHT       64
  75 #define NUM_TX_DESC     64      /* Number of Tx descriptor registers */
  76 #define NUM_RX_DESC     256     /* Number of Rx descriptor registers */
  77 #define RX_BUF_SIZE     1536    /* Rx Buffer size */
  78 #define R8169_TX_RING_BYTES     (NUM_TX_DESC * sizeof(struct TxDesc))
  79 #define R8169_RX_RING_BYTES     (NUM_RX_DESC * sizeof(struct RxDesc))
  80
  81 #define RTL8169_TX_TIMEOUT      (6*HZ)
  82 #define RTL8169_PHY_TIMEOUT     (10*HZ)
  83
  84 #define RTL_EEPROM_SIG          cpu_to_le32(0x8129)
  85 #define RTL_EEPROM_SIG_MASK     cpu_to_le32(0xffff)
  86 #define RTL_EEPROM_SIG_ADDR     0x0000
  87
  88 /* write/read MMIO register */
  89 #define RTL_W8(reg, val8)       writeb ((val8), ioaddr + (reg))
  90 #define RTL_W16(reg, val16)     writew ((val16), ioaddr + (reg))
  91 #define RTL_W32(reg, val32)     writel ((val32), ioaddr + (reg))
  92 #define RTL_R8(reg)             readb (ioaddr + (reg))
  93 #define RTL_R16(reg)            readw (ioaddr + (reg))
  94 #define RTL_R32(reg)            readl (ioaddr + (reg))
  95
  96 enum mac_version {
  97         RTL_GIGA_MAC_NONE   = 0x00,
  98         RTL_GIGA_MAC_VER_01 = 0x01, // 8169
  99         RTL_GIGA_MAC_VER_02 = 0x02, // 8169S
 100         RTL_GIGA_MAC_VER_03 = 0x03, // 8110S
 101         RTL_GIGA_MAC_VER_04 = 0x04, // 8169SB
 102         RTL_GIGA_MAC_VER_05 = 0x05, // 8110SCd
 103         RTL_GIGA_MAC_VER_06 = 0x06, // 8110SCe
 104         RTL_GIGA_MAC_VER_07 = 0x07, // 8102e
 105         RTL_GIGA_MAC_VER_08 = 0x08, // 8102e
 106         RTL_GIGA_MAC_VER_09 = 0x09, // 8102e
 107         RTL_GIGA_MAC_VER_10 = 0x0a, // 8101e
 108         RTL_GIGA_MAC_VER_11 = 0x0b, // 8168Bb
 109         RTL_GIGA_MAC_VER_12 = 0x0c, // 8168Be
 110         RTL_GIGA_MAC_VER_13 = 0x0d, // 8101Eb
 111         RTL_GIGA_MAC_VER_14 = 0x0e, // 8101 ?
 112         RTL_GIGA_MAC_VER_15 = 0x0f, // 8101 ?
 113         RTL_GIGA_MAC_VER_16 = 0x11, // 8101Ec
 114         RTL_GIGA_MAC_VER_17 = 0x10, // 8168Bf
 115         RTL_GIGA_MAC_VER_18 = 0x12, // 8168CP
 116         RTL_GIGA_MAC_VER_19 = 0x13, // 8168C
 117         RTL_GIGA_MAC_VER_20 = 0x14, // 8168C
 118         RTL_GIGA_MAC_VER_21 = 0x15, // 8168C
 119         RTL_GIGA_MAC_VER_22 = 0x16, // 8168C
 120         RTL_GIGA_MAC_VER_23 = 0x17, // 8168CP
 121         RTL_GIGA_MAC_VER_24 = 0x18, // 8168CP
 122         RTL_GIGA_MAC_VER_25 = 0x19, // 8168D
 123         RTL_GIGA_MAC_VER_26 = 0x1a, // 8168D
 124         RTL_GIGA_MAC_VER_27 = 0x1b, // 8168DP
 125         RTL_GIGA_MAC_VER_28 = 0x1c, // 8168DP
 126 };
 127
 128 #define _R(NAME,MAC,MASK) \
 129         { .name = NAME, .mac_version = MAC, .RxConfigMask = MASK }
 130
 131 static const struct {
 132         const char *name;
 133         u8 mac_version;
 134         u32 RxConfigMask;       /* Clears the bits supported by this chip */
 135 } rtl_chip_info[] = {
 136         _R("RTL8169",           RTL_GIGA_MAC_VER_01, 0xff7e1880), // 8169
 137         _R("RTL8169s",          RTL_GIGA_MAC_VER_02, 0xff7e1880), // 8169S
 138         _R("RTL8110s",          RTL_GIGA_MAC_VER_03, 0xff7e1880), // 8110S
 139         _R("RTL8169sb/8110sb",  RTL_GIGA_MAC_VER_04, 0xff7e1880), // 8169SB
 140         _R("RTL8169sc/8110sc",  RTL_GIGA_MAC_VER_05, 0xff7e1880), // 8110SCd
 141         _R("RTL8169sc/8110sc",  RTL_GIGA_MAC_VER_06, 0xff7e1880), // 8110SCe
 142         _R("RTL8102e",          RTL_GIGA_MAC_VER_07, 0xff7e1880), // PCI-E
 143         _R("RTL8102e",          RTL_GIGA_MAC_VER_08, 0xff7e1880), // PCI-E
 144         _R("RTL8102e",          RTL_GIGA_MAC_VER_09, 0xff7e1880), // PCI-E
 145         _R("RTL8101e",          RTL_GIGA_MAC_VER_10, 0xff7e1880), // PCI-E
 146         _R("RTL8168b/8111b",    RTL_GIGA_MAC_VER_11, 0xff7e1880), // PCI-E
 147         _R("RTL8168b/8111b",    RTL_GIGA_MAC_VER_12, 0xff7e1880), // PCI-E
 148         _R("RTL8101e",          RTL_GIGA_MAC_VER_13, 0xff7e1880), // PCI-E 8139
 149         _R("RTL8100e",          RTL_GIGA_MAC_VER_14, 0xff7e1880), // PCI-E 8139
 150         _R("RTL8100e",          RTL_GIGA_MAC_VER_15, 0xff7e1880), // PCI-E 8139
 151         _R("RTL8168b/8111b",    RTL_GIGA_MAC_VER_17, 0xff7e1880), // PCI-E
 152         _R("RTL8101e",          RTL_GIGA_MAC_VER_16, 0xff7e1880), // PCI-E
 153         _R("RTL8168cp/8111cp",  RTL_GIGA_MAC_VER_18, 0xff7e1880), // PCI-E
 154         _R("RTL8168c/8111c",    RTL_GIGA_MAC_VER_19, 0xff7e1880), // PCI-E
 155         _R("RTL8168c/8111c",    RTL_GIGA_MAC_VER_20, 0xff7e1880), // PCI-E
 156         _R("RTL8168c/8111c",    RTL_GIGA_MAC_VER_21, 0xff7e1880), // PCI-E
 157         _R("RTL8168c/8111c",    RTL_GIGA_MAC_VER_22, 0xff7e1880), // PCI-E
 158         _R("RTL8168cp/8111cp",  RTL_GIGA_MAC_VER_23, 0xff7e1880), // PCI-E
 159         _R("RTL8168cp/8111cp",  RTL_GIGA_MAC_VER_24, 0xff7e1880), // PCI-E
 160         _R("RTL8168d/8111d",    RTL_GIGA_MAC_VER_25, 0xff7e1880), // PCI-E
 161         _R("RTL8168d/8111d",    RTL_GIGA_MAC_VER_26, 0xff7e1880), // PCI-E
 162         _R("RTL8168dp/8111dp",  RTL_GIGA_MAC_VER_27, 0xff7e1880), // PCI-E
 163         _R("RTL8168dp/8111dp",  RTL_GIGA_MAC_VER_28, 0xff7e1880)  // PCI-E
 164 };
 165 #undef _R
 166
 167 enum cfg_version {
 168         RTL_CFG_0 = 0x00,
 169         RTL_CFG_1,
 170         RTL_CFG_2
 171 };
 172
 173 static void rtl_hw_start_8169(struct net_device *);
 174 static void rtl_hw_start_8168(struct net_device *);
 175 static void rtl_hw_start_8101(struct net_device *);
 176
 177 static DEFINE_PCI_DEVICE_TABLE(rtl8169_pci_tbl) = {
 178         { PCI_DEVICE(PCI_VENDOR_ID_REALTEK,     0x8129), 0, 0, RTL_CFG_0 },
 179         { PCI_DEVICE(PCI_VENDOR_ID_REALTEK,     0x8136), 0, 0, RTL_CFG_2 },
 180         { PCI_DEVICE(PCI_VENDOR_ID_REALTEK,     0x8167), 0, 0, RTL_CFG_0 },
 181         { PCI_DEVICE(PCI_VENDOR_ID_REALTEK,     0x8168), 0, 0, RTL_CFG_1 },
 182         { PCI_DEVICE(PCI_VENDOR_ID_REALTEK,     0x8169), 0, 0, RTL_CFG_0 },
 183         { PCI_DEVICE(PCI_VENDOR_ID_DLINK,       0x4300), 0, 0, RTL_CFG_0 },
 184         { PCI_DEVICE(PCI_VENDOR_ID_AT,          0xc107), 0, 0, RTL_CFG_0 },
 185         { PCI_DEVICE(0x16ec,                    0x0116), 0, 0, RTL_CFG_0 },
 186         { PCI_VENDOR_ID_LINKSYS,                0x1032,
 187                 PCI_ANY_ID, 0x0024, 0, 0, RTL_CFG_0 },
 188         { 0x0001,                               0x8168,
 189                 PCI_ANY_ID, 0x2410, 0, 0, RTL_CFG_2 },
 190         {0,},
 191 };
 192
 193 MODULE_DEVICE_TABLE(pci, rtl8169_pci_tbl);
 194
 195 static int rx_buf_sz = 16383;
 196 static int use_dac;
 197 static struct {
 198         u32 msg_enable;
 199 } debug = { -1 };
 200
 201 enum rtl_registers {
 202         MAC0            = 0,    /* Ethernet hardware address. */
 203         MAC4            = 4,
 204         MAR0            = 8,    /* Multicast filter. */
 205         CounterAddrLow          = 0x10,
 206         CounterAddrHigh         = 0x14,
 207         TxDescStartAddrLow      = 0x20,
 208         TxDescStartAddrHigh     = 0x24,
 209         TxHDescStartAddrLow     = 0x28,
 210         TxHDescStartAddrHigh    = 0x2c,
 211         FLASH           = 0x30,
 212         ERSR            = 0x36,
 213         ChipCmd         = 0x37,
 214         TxPoll          = 0x38,
 215         IntrMask        = 0x3c,
 216         IntrStatus      = 0x3e,
 217         TxConfig        = 0x40,
 218         RxConfig        = 0x44,
 219         RxMissed        = 0x4c,
 220         Cfg9346         = 0x50,
 221         Config0         = 0x51,
 222         Config1         = 0x52,
 223         Config2         = 0x53,
 224         Config3         = 0x54,
 225         Config4         = 0x55,
 226         Config5         = 0x56,
 227         MultiIntr       = 0x5c,
 228         PHYAR           = 0x60,
 229         PHYstatus       = 0x6c,
 230         RxMaxSize       = 0xda,
 231         CPlusCmd        = 0xe0,
 232         IntrMitigate    = 0xe2,
 233         RxDescAddrLow   = 0xe4,
 234         RxDescAddrHigh  = 0xe8,
 235         EarlyTxThres    = 0xec, /* 8169. Unit of 32 bytes. */
 236
 237 #define NoEarlyTx       0x3f    /* Max value : no early transmit. */
 238
 239         MaxTxPacketSize = 0xec, /* 8101/8168. Unit of 128 bytes. */
 240
 241 #define TxPacketMax     (8064 >> 7)
 242
 243         FuncEvent       = 0xf0,
 244         FuncEventMask   = 0xf4,
 245         FuncPresetState = 0xf8,
 246         FuncForceEvent  = 0xfc,
 247 };
 248
 249 enum rtl8110_registers {
 250         TBICSR                  = 0x64,
 251         TBI_ANAR                = 0x68,
 252         TBI_LPAR                = 0x6a,
 253 };
 254
 255 enum rtl8168_8101_registers {
 256         CSIDR                   = 0x64,
 257         CSIAR                   = 0x68,
 258 #define CSIAR_FLAG                      0x80000000
 259 #define CSIAR_WRITE_CMD                 0x80000000
 260 #define CSIAR_BYTE_ENABLE               0x0f
 261 #define CSIAR_BYTE_ENABLE_SHIFT         12
 262 #define CSIAR_ADDR_MASK                 0x0fff
 263         PMCH                    = 0x6f,
 264         EPHYAR                  = 0x80,
 265 #define EPHYAR_FLAG                     0x80000000
 266 #define EPHYAR_WRITE_CMD                0x80000000
 267 #define EPHYAR_REG_MASK                 0x1f
 268 #define EPHYAR_REG_SHIFT                16
 269 #define EPHYAR_DATA_MASK                0xffff
 270         DBG_REG                 = 0xd1,
 271 #define FIX_NAK_1                       (1 << 4)
 272 #define FIX_NAK_2                       (1 << 3)
 273         EFUSEAR                 = 0xdc,
 274 #define EFUSEAR_FLAG                    0x80000000
 275 #define EFUSEAR_WRITE_CMD               0x80000000
 276 #define EFUSEAR_READ_CMD                0x00000000
 277 #define EFUSEAR_REG_MASK                0x03ff
 278 #define EFUSEAR_REG_SHIFT               8
 279 #define EFUSEAR_DATA_MASK               0xff
 280 };
 281
 282 enum rtl8168_registers {
 283         ERIDR                   = 0x70,
 284         ERIAR                   = 0x74,
 285 #define ERIAR_FLAG                      0x80000000
 286 #define ERIAR_WRITE_CMD                 0x80000000
 287 #define ERIAR_READ_CMD                  0x00000000
 288 #define ERIAR_ADDR_BYTE_ALIGN           4
 289 #define ERIAR_EXGMAC                    0
 290 #define ERIAR_MSIX                      1
 291 #define ERIAR_ASF                       2
 292 #define ERIAR_TYPE_SHIFT                16
 293 #define ERIAR_BYTEEN                    0x0f
 294 #define ERIAR_BYTEEN_SHIFT              12
 295         EPHY_RXER_NUM           = 0x7c,
 296         OCPDR                   = 0xb0, /* OCP GPHY access */
 297 #define OCPDR_WRITE_CMD                 0x80000000
 298 #define OCPDR_READ_CMD                  0x00000000
 299 #define OCPDR_REG_MASK                  0x7f
 300 #define OCPDR_GPHY_REG_SHIFT            16
 301 #define OCPDR_DATA_MASK                 0xffff
 302         OCPAR                   = 0xb4,
 303 #define OCPAR_FLAG                      0x80000000
 304 #define OCPAR_GPHY_WRITE_CMD            0x8000f060
 305 #define OCPAR_GPHY_READ_CMD             0x0000f060
 306         RDSAR1                  = 0xd0  /* 8168c only. Undocumented on 8168dp */
 307 };
 308
 309 enum rtl_register_content {
 310         /* InterruptStatusBits */
 311         SYSErr          = 0x8000,
 312         PCSTimeout      = 0x4000,
 313         SWInt           = 0x0100,
 314         TxDescUnavail   = 0x0080,
 315         RxFIFOOver      = 0x0040,
 316         LinkChg         = 0x0020,
 317         RxOverflow      = 0x0010,
 318         TxErr           = 0x0008,
 319         TxOK            = 0x0004,
 320         RxErr           = 0x0002,
 321         RxOK            = 0x0001,
 322
 323         /* RxStatusDesc */
 324         RxFOVF  = (1 << 23),
 325         RxRWT   = (1 << 22),
 326         RxRES   = (1 << 21),
 327         RxRUNT  = (1 << 20),
 328         RxCRC   = (1 << 19),
 329
 330         /* ChipCmdBits */
 331         CmdReset        = 0x10,
 332         CmdRxEnb        = 0x08,
 333         CmdTxEnb        = 0x04,
 334         RxBufEmpty      = 0x01,
 335
 336         /* TXPoll register p.5 */
 337         HPQ             = 0x80,         /* Poll cmd on the high prio queue */
 338         NPQ             = 0x40,         /* Poll cmd on the low prio queue */
 339         FSWInt          = 0x01,         /* Forced software interrupt */
 340
 341         /* Cfg9346Bits */
 342         Cfg9346_Lock    = 0x00,
 343         Cfg9346_Unlock  = 0xc0,
 344
 345         /* rx_mode_bits */
 346         AcceptErr       = 0x20,
 347         AcceptRunt      = 0x10,
 348         AcceptBroadcast = 0x08,
 349         AcceptMulticast = 0x04,
 350         AcceptMyPhys    = 0x02,
 351         AcceptAllPhys   = 0x01,
 352
 353         /* RxConfigBits */
 354         RxCfgFIFOShift  = 13,
 355         RxCfgDMAShift   =  8,
 356
 357         /* TxConfigBits */
 358         TxInterFrameGapShift = 24,
 359         TxDMAShift = 8, /* DMA burst value (0-7) is shift this many bits */
 360
 361         /* Config1 register p.24 */
 362         LEDS1           = (1 << 7),
 363         LEDS0           = (1 << 6),
 364         MSIEnable       = (1 << 5),     /* Enable Message Signaled Interrupt */
 365         Speed_down      = (1 << 4),
 366         MEMMAP          = (1 << 3),
 367         IOMAP           = (1 << 2),
 368         VPD             = (1 << 1),
 369         PMEnable        = (1 << 0),     /* Power Management Enable */
 370
 371         /* Config2 register p. 25 */
 372         PCI_Clock_66MHz = 0x01,
 373         PCI_Clock_33MHz = 0x00,
 374
 375         /* Config3 register p.25 */
 376         MagicPacket     = (1 << 5),     /* Wake up when receives a Magic Packet */
 377         LinkUp          = (1 << 4),     /* Wake up when the cable connection is re-established */
 378         Beacon_en       = (1 << 0),     /* 8168 only. Reserved in the 8168b */
 379
 380         /* Config5 register p.27 */
 381         BWF             = (1 << 6),     /* Accept Broadcast wakeup frame */
 382         MWF             = (1 << 5),     /* Accept Multicast wakeup frame */
 383         UWF             = (1 << 4),     /* Accept Unicast wakeup frame */
 384         LanWake         = (1 << 1),     /* LanWake enable/disable */
 385         PMEStatus       = (1 << 0),     /* PME status can be reset by PCI RST# */
 386
 387         /* TBICSR p.28 */
 388         TBIReset        = 0x80000000,
 389         TBILoopback     = 0x40000000,
 390         TBINwEnable     = 0x20000000,
 391         TBINwRestart    = 0x10000000,
 392         TBILinkOk       = 0x02000000,
 393         TBINwComplete   = 0x01000000,
 394
 395         /* CPlusCmd p.31 */
 396         EnableBist      = (1 << 15),    // 8168 8101
 397         Mac_dbgo_oe     = (1 << 14),    // 8168 8101
 398         Normal_mode     = (1 << 13),    // unused
 399         Force_half_dup  = (1 << 12),    // 8168 8101
 400         Force_rxflow_en = (1 << 11),    // 8168 8101
 401         Force_txflow_en = (1 << 10),    // 8168 8101
 402         Cxpl_dbg_sel    = (1 << 9),     // 8168 8101
 403         ASF             = (1 << 8),     // 8168 8101
 404         PktCntrDisable  = (1 << 7),     // 8168 8101
 405         Mac_dbgo_sel    = 0x001c,       // 8168
 406         RxVlan          = (1 << 6),
 407         RxChkSum        = (1 << 5),
 408         PCIDAC          = (1 << 4),
 409         PCIMulRW        = (1 << 3),
 410         INTT_0          = 0x0000,       // 8168
 411         INTT_1          = 0x0001,       // 8168
 412         INTT_2          = 0x0002,       // 8168
 413         INTT_3          = 0x0003,       // 8168
 414
 415         /* rtl8169_PHYstatus */
 416         TBI_Enable      = 0x80,
 417         TxFlowCtrl      = 0x40,
 418         RxFlowCtrl      = 0x20,
 419         _1000bpsF       = 0x10,
 420         _100bps         = 0x08,
 421         _10bps          = 0x04,
 422         LinkStatus      = 0x02,
 423         FullDup         = 0x01,
 424
 425         /* _TBICSRBit */
 426         TBILinkOK       = 0x02000000,
 427
 428         /* DumpCounterCommand */
 429         CounterDump     = 0x8,
 430 };
 431
 432 enum desc_status_bit {
 433         DescOwn         = (1 << 31), /* Descriptor is owned by NIC */
 434         RingEnd         = (1 << 30), /* End of descriptor ring */
 435         FirstFrag       = (1 << 29), /* First segment of a packet */
 436         LastFrag        = (1 << 28), /* Final segment of a packet */
 437
 438         /* Tx private */
 439         LargeSend       = (1 << 27), /* TCP Large Send Offload (TSO) */
 440         MSSShift        = 16,        /* MSS value position */
 441         MSSMask         = 0xfff,     /* MSS value + LargeSend bit: 12 bits */
 442         IPCS            = (1 << 18), /* Calculate IP checksum */
 443         UDPCS           = (1 << 17), /* Calculate UDP/IP checksum */
 444         TCPCS           = (1 << 16), /* Calculate TCP/IP checksum */
 445         TxVlanTag       = (1 << 17), /* Add VLAN tag */
 446
 447         /* Rx private */
 448         PID1            = (1 << 18), /* Protocol ID bit 1/2 */
 449         PID0            = (1 << 17), /* Protocol ID bit 2/2 */
 450
 451 #define RxProtoUDP      (PID1)
 452 #define RxProtoTCP      (PID0)
 453 #define RxProtoIP       (PID1 | PID0)
 454 #define RxProtoMask     RxProtoIP
 455
 456         IPFail          = (1 << 16), /* IP checksum failed */
 457         UDPFail         = (1 << 15), /* UDP/IP checksum failed */
 458         TCPFail         = (1 << 14), /* TCP/IP checksum failed */
 459         RxVlanTag       = (1 << 16), /* VLAN tag available */
 460 };
 461
 462 #define RsvdMask        0x3fffc000
 463
 464 struct TxDesc {
 465         __le32 opts1;
 466         __le32 opts2;
 467         __le64 addr;
 468 };
 469
 470 struct RxDesc {
 471         __le32 opts1;
 472         __le32 opts2;
 473         __le64 addr;
 474 };
 475
 476 struct ring_info {
 477         struct sk_buff  *skb;
 478         u32             len;
 479         u8              __pad[sizeof(void *) - sizeof(u32)];
 480 };
 481
 482 enum features {
 483         RTL_FEATURE_WOL         = (1 << 0),
 484         RTL_FEATURE_MSI         = (1 << 1),
 485         RTL_FEATURE_GMII        = (1 << 2),
 486 };
 487
 488 struct rtl8169_counters {
 489         __le64  tx_packets;
 490         __le64  rx_packets;
 491         __le64  tx_errors;
 492         __le32  rx_errors;
 493         __le16  rx_missed;
 494         __le16  align_errors;
 495         __le32  tx_one_collision;
 496         __le32  tx_multi_collision;
 497         __le64  rx_unicast;
 498         __le64  rx_broadcast;
 499         __le32  rx_multicast;
 500         __le16  tx_aborted;
 501         __le16  tx_underun;
 502 };
 503
 504 struct rtl8169_private {
 505         void __iomem *mmio_addr;        /* memory map physical address */
 506         struct pci_dev *pci_dev;        /* Index of PCI device */
 507         struct net_device *dev;
 508         struct napi_struct napi;
 509         spinlock_t lock;                /* spin lock flag */
 510         u32 msg_enable;
 511         int chipset;
 512         int mac_version;
 513         u32 cur_rx; /* Index into the Rx descriptor buffer of next Rx pkt. */
 514         u32 cur_tx; /* Index into the Tx descriptor buffer of next Rx pkt. */
 515         u32 dirty_rx;
 516         u32 dirty_tx;
 517         struct TxDesc *TxDescArray;     /* 256-aligned Tx descriptor ring */
 518         struct RxDesc *RxDescArray;     /* 256-aligned Rx descriptor ring */
 519         dma_addr_t TxPhyAddr;
 520         dma_addr_t RxPhyAddr;
 521         void *Rx_databuff[NUM_RX_DESC]; /* Rx data buffers */
 522         struct ring_info tx_skb[NUM_TX_DESC];   /* Tx data buffers */
 523         struct timer_list timer;
 524         u16 cp_cmd;
 525         u16 intr_event;
 526         u16 napi_event;
 527         u16 intr_mask;
 528         int phy_1000_ctrl_reg;
 529 #ifdef CONFIG_R8169_VLAN
 530         struct vlan_group *vlgrp;
 531 #endif
 532
 533         struct mdio_ops {
 534                 void (*write)(void __iomem *, int, int);
 535                 int (*read)(void __iomem *, int);
 536         } mdio_ops;
 537
 538         struct pll_power_ops {
 539                 void (*down)(struct rtl8169_private *);
 540                 void (*up)(struct rtl8169_private *);
 541         } pll_power_ops;
 542
 543         int (*set_speed)(struct net_device *, u8 autoneg, u16 speed, u8 duplex);
 544         int (*get_settings)(struct net_device *, struct ethtool_cmd *);
 545         void (*phy_reset_enable)(struct rtl8169_private *tp);
 546         void (*hw_start)(struct net_device *);
 547         unsigned int (*phy_reset_pending)(struct rtl8169_private *tp);
 548         unsigned int (*link_ok)(void __iomem *);
 549         int (*do_ioctl)(struct rtl8169_private *tp, struct mii_ioctl_data *data, int cmd);
 550         int pcie_cap;
 551         struct delayed_work task;
 552         unsigned features;
 553
 554         struct mii_if_info mii;
 555         struct rtl8169_counters counters;
 556         u32 saved_wolopts;
 557
 558         const struct firmware *fw;
 559 };
 560
 561 MODULE_AUTHOR("Realtek and the Linux r8169 crew <netdev@vger.kernel.org>");
 562 MODULE_DESCRIPTION("RealTek RTL-8169 Gigabit Ethernet driver");
 563 module_param(use_dac, int, 0);
 564 MODULE_PARM_DESC(use_dac, "Enable PCI DAC. Unsafe on 32 bit PCI slot.");
 565 module_param_named(debug, debug.msg_enable, int, 0);
 566 MODULE_PARM_DESC(debug, "Debug verbosity level (0=none, ..., 16=all)");
 567 MODULE_LICENSE("GPL");
 568 MODULE_VERSION(RTL8169_VERSION);
 569 MODULE_FIRMWARE(FIRMWARE_8168D_1);
 570 MODULE_FIRMWARE(FIRMWARE_8168D_2);
 571
 572 static int rtl8169_open(struct net_device *dev);
 573 static netdev_tx_t rtl8169_start_xmit(struct sk_buff *skb,
 574                                       struct net_device *dev);
 575 static irqreturn_t rtl8169_interrupt(int irq, void *dev_instance);
 576 static int rtl8169_init_ring(struct net_device *dev);
 577 static void rtl_hw_start(struct net_device *dev);
 578 static int rtl8169_close(struct net_device *dev);
 579 static void rtl_set_rx_mode(struct net_device *dev);
 580 static void rtl8169_tx_timeout(struct net_device *dev);
 581 static struct net_device_stats *rtl8169_get_stats(struct net_device *dev);
 582 static int rtl8169_rx_interrupt(struct net_device *, struct rtl8169_private *,
 583                                 void __iomem *, u32 budget);
 584 static int rtl8169_change_mtu(struct net_device *dev, int new_mtu);
 585 static void rtl8169_down(struct net_device *dev);
 586 static void rtl8169_rx_clear(struct rtl8169_private *tp);
 587 static int rtl8169_poll(struct napi_struct *napi, int budget);
 588
 589 static const unsigned int rtl8169_rx_config =
 590         (RX_FIFO_THRESH << RxCfgFIFOShift) | (RX_DMA_BURST << RxCfgDMAShift);
 591
 592 static u32 ocp_read(struct rtl8169_private *tp, u8 mask, u16 reg)
 593 {
 594         void __iomem *ioaddr = tp->mmio_addr;
 595         int i;
 596
 597         RTL_W32(OCPAR, ((u32)mask & 0x0f) << 12 | (reg & 0x0fff));
 598         for (i = 0; i < 20; i++) {
 599                 udelay(100);
 600                 if (RTL_R32(OCPAR) & OCPAR_FLAG)
 601                         break;
 602         }
 603         return RTL_R32(OCPDR);
 604 }
 605
 606 static void ocp_write(struct rtl8169_private *tp, u8 mask, u16 reg, u32 data)
 607 {
 608         void __iomem *ioaddr = tp->mmio_addr;
 609         int i;
 610
 611         RTL_W32(OCPDR, data);
 612         RTL_W32(OCPAR, OCPAR_FLAG | ((u32)mask & 0x0f) << 12 | (reg & 0x0fff));
 613         for (i = 0; i < 20; i++) {
 614                 udelay(100);
 615                 if ((RTL_R32(OCPAR) & OCPAR_FLAG) == 0)
 616                         break;
 617         }
 618 }
 619
 620 static void rtl8168_oob_notify(struct rtl8169_private *tp, u8 cmd)
 621 {
 622         void __iomem *ioaddr = tp->mmio_addr;
 623         int i;
 624
 625         RTL_W8(ERIDR, cmd);
 626         RTL_W32(ERIAR, 0x800010e8);
 627         msleep(2);
 628         for (i = 0; i < 5; i++) {
 629                 udelay(100);
 630                 if (!(RTL_R32(ERIDR) & ERIAR_FLAG))
 631                         break;
 632         }
 633
 634         ocp_write(tp, 0x1, 0x30, 0x00000001);
 635 }
 636
 637 #define OOB_CMD_RESET           0x00
 638 #define OOB_CMD_DRIVER_START    0x05
 639 #define OOB_CMD_DRIVER_STOP     0x06
 640
 641 static void rtl8168_driver_start(struct rtl8169_private *tp)
 642 {
 643         int i;
 644
 645         rtl8168_oob_notify(tp, OOB_CMD_DRIVER_START);
 646
 647         for (i = 0; i < 10; i++) {
 648                 msleep(10);
 649                 if (ocp_read(tp, 0x0f, 0x0010) & 0x00000800)
 650                         break;
 651         }
 652 }
 653
 654 static void rtl8168_driver_stop(struct rtl8169_private *tp)
 655 {
 656         int i;
 657
 658         rtl8168_oob_notify(tp, OOB_CMD_DRIVER_STOP);
 659
 660         for (i = 0; i < 10; i++) {
 661                 msleep(10);
 662                 if ((ocp_read(tp, 0x0f, 0x0010) & 0x00000800) == 0)
 663                         break;
 664         }
 665 }
 666
 667
 668 static void r8169_mdio_write(void __iomem *ioaddr, int reg_addr, int value)
 669 {
 670         int i;
 671
 672         RTL_W32(PHYAR, 0x80000000 | (reg_addr & 0x1f) << 16 | (value & 0xffff));
 673
 674         for (i = 20; i > 0; i--) {
 675                 /*
 676                  * Check if the RTL8169 has completed writing to the specified
 677                  * MII register.
 678                  */
 679                 if (!(RTL_R32(PHYAR) & 0x80000000))
 680                         break;
 681                 udelay(25);
 682         }
 683         /*
 684          * According to hardware specs a 20us delay is required after write
 685          * complete indication, but before sending next command.
 686          */
 687         udelay(20);
 688 }
 689
 690 static int r8169_mdio_read(void __iomem *ioaddr, int reg_addr)
 691 {
 692         int i, value = -1;
 693
 694         RTL_W32(PHYAR, 0x0 | (reg_addr & 0x1f) << 16);
 695
 696         for (i = 20; i > 0; i--) {
 697                 /*
 698                  * Check if the RTL8169 has completed retrieving data from
 699                  * the specified MII register.
 700                  */
 701                 if (RTL_R32(PHYAR) & 0x80000000) {
 702                         value = RTL_R32(PHYAR) & 0xffff;
 703                         break;
 704                 }
 705                 udelay(25);
 706         }
 707         /*
 708          * According to hardware specs a 20us delay is required after read
 709          * complete indication, but before sending next command.
 710          */
 711         udelay(20);
 712
 713         return value;
 714 }
 715
 716 static void r8168dp_1_mdio_access(void __iomem *ioaddr, int reg_addr, u32 data)
 717 {
 718         int i;
 719
 720         RTL_W32(OCPDR, data |
 721                 ((reg_addr & OCPDR_REG_MASK) << OCPDR_GPHY_REG_SHIFT));
 722         RTL_W32(OCPAR, OCPAR_GPHY_WRITE_CMD);
 723         RTL_W32(EPHY_RXER_NUM, 0);
 724
 725         for (i = 0; i < 100; i++) {
 726                 mdelay(1);
 727                 if (!(RTL_R32(OCPAR) & OCPAR_FLAG))
 728                         break;
 729         }
 730 }
 731
 732 static void r8168dp_1_mdio_write(void __iomem *ioaddr, int reg_addr, int value)
 733 {
 734         r8168dp_1_mdio_access(ioaddr, reg_addr, OCPDR_WRITE_CMD |
 735                 (value & OCPDR_DATA_MASK));
 736 }
 737
 738 static int r8168dp_1_mdio_read(void __iomem *ioaddr, int reg_addr)
 739 {
 740         int i;
 741
 742         r8168dp_1_mdio_access(ioaddr, reg_addr, OCPDR_READ_CMD);
 743
 744         mdelay(1);
 745         RTL_W32(OCPAR, OCPAR_GPHY_READ_CMD);
 746         RTL_W32(EPHY_RXER_NUM, 0);
 747
 748         for (i = 0; i < 100; i++) {
 749                 mdelay(1);
 750                 if (RTL_R32(OCPAR) & OCPAR_FLAG)
 751                         break;
 752         }
 753
 754         return RTL_R32(OCPDR) & OCPDR_DATA_MASK;
 755 }
 756
 757 #define R8168DP_1_MDIO_ACCESS_BIT       0x00020000
 758
 759 static void r8168dp_2_mdio_start(void __iomem *ioaddr)
 760 {
 761         RTL_W32(0xd0, RTL_R32(0xd0) & ~R8168DP_1_MDIO_ACCESS_BIT);
 762 }
 763
 764 static void r8168dp_2_mdio_stop(void __iomem *ioaddr)
 765 {
 766         RTL_W32(0xd0, RTL_R32(0xd0) | R8168DP_1_MDIO_ACCESS_BIT);
 767 }
 768
 769 static void r8168dp_2_mdio_write(void __iomem *ioaddr, int reg_addr, int value)
 770 {
 771         r8168dp_2_mdio_start(ioaddr);
 772
 773         r8169_mdio_write(ioaddr, reg_addr, value);
 774
 775         r8168dp_2_mdio_stop(ioaddr);
 776 }
 777
 778 static int r8168dp_2_mdio_read(void __iomem *ioaddr, int reg_addr)
 779 {
 780         int value;
 781
 782         r8168dp_2_mdio_start(ioaddr);
 783
 784         value = r8169_mdio_read(ioaddr, reg_addr);
 785
 786         r8168dp_2_mdio_stop(ioaddr);
 787
 788         return value;
 789 }
 790
 791 static void rtl_writephy(struct rtl8169_private *tp, int location, u32 val)
 792 {
 793         tp->mdio_ops.write(tp->mmio_addr, location, val);
 794 }
 795
 796 static int rtl_readphy(struct rtl8169_private *tp, int location)
 797 {
 798         return tp->mdio_ops.read(tp->mmio_addr, location);
 799 }
 800
 801 static void rtl_patchphy(struct rtl8169_private *tp, int reg_addr, int value)
 802 {
 803         rtl_writephy(tp, reg_addr, rtl_readphy(tp, reg_addr) | value);
 804 }
 805
 806 static void rtl_w1w0_phy(struct rtl8169_private *tp, int reg_addr, int p, int m)
 807 {
 808         int val;
 809
 810         val = rtl_readphy(tp, reg_addr);
 811         rtl_writephy(tp, reg_addr, (val | p) & ~m);
 812 }
 813
 814 static void rtl_mdio_write(struct net_device *dev, int phy_id, int location,
 815                            int val)
 816 {
 817         struct rtl8169_private *tp = netdev_priv(dev);
 818
 819         rtl_writephy(tp, location, val);
 820 }
 821
 822 static int rtl_mdio_read(struct net_device *dev, int phy_id, int location)
 823 {
 824         struct rtl8169_private *tp = netdev_priv(dev);
 825
 826         return rtl_readphy(tp, location);
 827 }
 828
 829 static void rtl_ephy_write(void __iomem *ioaddr, int reg_addr, int value)
 830 {
 831         unsigned int i;
 832
 833         RTL_W32(EPHYAR, EPHYAR_WRITE_CMD | (value & EPHYAR_DATA_MASK) |
 834                 (reg_addr & EPHYAR_REG_MASK) << EPHYAR_REG_SHIFT);
 835
 836         for (i = 0; i < 100; i++) {
 837                 if (!(RTL_R32(EPHYAR) & EPHYAR_FLAG))
 838                         break;
 839                 udelay(10);
 840         }
 841 }
 842
 843 static u16 rtl_ephy_read(void __iomem *ioaddr, int reg_addr)
 844 {
 845         u16 value = 0xffff;
 846         unsigned int i;
 847
 848         RTL_W32(EPHYAR, (reg_addr & EPHYAR_REG_MASK) << EPHYAR_REG_SHIFT);
 849
 850         for (i = 0; i < 100; i++) {
 851                 if (RTL_R32(EPHYAR) & EPHYAR_FLAG) {
 852                         value = RTL_R32(EPHYAR) & EPHYAR_DATA_MASK;
 853                         break;
 854                 }
 855                 udelay(10);
 856         }
 857
 858         return value;
 859 }
 860
 861 static void rtl_csi_write(void __iomem *ioaddr, int addr, int value)
 862 {
 863         unsigned int i;
 864
 865         RTL_W32(CSIDR, value);
 866         RTL_W32(CSIAR, CSIAR_WRITE_CMD | (addr & CSIAR_ADDR_MASK) |
 867                 CSIAR_BYTE_ENABLE << CSIAR_BYTE_ENABLE_SHIFT);
 868
 869         for (i = 0; i < 100; i++) {
 870                 if (!(RTL_R32(CSIAR) & CSIAR_FLAG))
 871                         break;
 872                 udelay(10);
 873         }
 874 }
 875
 876 static u32 rtl_csi_read(void __iomem *ioaddr, int addr)
 877 {
 878         u32 value = ~0x00;
 879         unsigned int i;
 880
 881         RTL_W32(CSIAR, (addr & CSIAR_ADDR_MASK) |
 882                 CSIAR_BYTE_ENABLE << CSIAR_BYTE_ENABLE_SHIFT);
 883
 884         for (i = 0; i < 100; i++) {
 885                 if (RTL_R32(CSIAR) & CSIAR_FLAG) {
 886                         value = RTL_R32(CSIDR);
 887                         break;
 888                 }
 889                 udelay(10);
 890         }
 891
 892         return value;
 893 }
 894
 895 static u8 rtl8168d_efuse_read(void __iomem *ioaddr, int reg_addr)
 896 {
 897         u8 value = 0xff;
 898         unsigned int i;
 899
 900         RTL_W32(EFUSEAR, (reg_addr & EFUSEAR_REG_MASK) << EFUSEAR_REG_SHIFT);
 901
 902         for (i = 0; i < 300; i++) {
 903                 if (RTL_R32(EFUSEAR) & EFUSEAR_FLAG) {
 904                         value = RTL_R32(EFUSEAR) & EFUSEAR_DATA_MASK;
 905                         break;
 906                 }
 907                 udelay(100);
 908         }
 909
 910         return value;
 911 }
 912
 913 static void rtl8169_irq_mask_and_ack(void __iomem *ioaddr)
 914 {
 915         RTL_W16(IntrMask, 0x0000);
 916
 917         RTL_W16(IntrStatus, 0xffff);
 918 }
 919
 920 static void rtl8169_asic_down(void __iomem *ioaddr)
 921 {
 922         RTL_W8(ChipCmd, 0x00);
 923         rtl8169_irq_mask_and_ack(ioaddr);
 924         RTL_R16(CPlusCmd);
 925 }
 926
 927 static unsigned int rtl8169_tbi_reset_pending(struct rtl8169_private *tp)
 928 {
 929         void __iomem *ioaddr = tp->mmio_addr;
 930
 931         return RTL_R32(TBICSR) & TBIReset;
 932 }
 933
 934 static unsigned int rtl8169_xmii_reset_pending(struct rtl8169_private *tp)
 935 {
 936         return rtl_readphy(tp, MII_BMCR) & BMCR_RESET;
 937 }
 938
 939 static unsigned int rtl8169_tbi_link_ok(void __iomem *ioaddr)
 940 {
 941         return RTL_R32(TBICSR) & TBILinkOk;
 942 }
 943
 944 static unsigned int rtl8169_xmii_link_ok(void __iomem *ioaddr)
 945 {
 946         return RTL_R8(PHYstatus) & LinkStatus;
 947 }
 948
 949 static void rtl8169_tbi_reset_enable(struct rtl8169_private *tp)
 950 {
 951         void __iomem *ioaddr = tp->mmio_addr;
 952
 953         RTL_W32(TBICSR, RTL_R32(TBICSR) | TBIReset);
 954 }
 955
 956 static void rtl8169_xmii_reset_enable(struct rtl8169_private *tp)
 957 {
 958         unsigned int val;
 959
 960         val = rtl_readphy(tp, MII_BMCR) | BMCR_RESET;
 961         rtl_writephy(tp, MII_BMCR, val & 0xffff);
 962 }
 963
 964 static void __rtl8169_check_link_status(struct net_device *dev,
 965                                       struct rtl8169_private *tp,
 966                                       void __iomem *ioaddr,
 967                                       bool pm)
 968 {
 969         unsigned long flags;
 970
 971         spin_lock_irqsave(&tp->lock, flags);
 972         if (tp->link_ok(ioaddr)) {
 973                 /* This is to cancel a scheduled suspend if there's one. */
 974                 if (pm)
 975                         pm_request_resume(&tp->pci_dev->dev);
 976                 netif_carrier_on(dev);
 977                 if (net_ratelimit())
 978                         netif_info(tp, ifup, dev, "link up\n");
 979         } else {
 980                 netif_carrier_off(dev);
 981                 netif_info(tp, ifdown, dev, "link down\n");
 982                 if (pm)
 983                         pm_schedule_suspend(&tp->pci_dev->dev, 100);
 984         }
 985         spin_unlock_irqrestore(&tp->lock, flags);
 986 }
 987
 988 static void rtl8169_check_link_status(struct net_device *dev,
 989                                       struct rtl8169_private *tp,
 990                                       void __iomem *ioaddr)
 991 {
 992         __rtl8169_check_link_status(dev, tp, ioaddr, false);
 993 }
 994
 995 #define WAKE_ANY (WAKE_PHY | WAKE_MAGIC | WAKE_UCAST | WAKE_BCAST | WAKE_MCAST)
 996
 997 static u32 __rtl8169_get_wol(struct rtl8169_private *tp)
 998 {
 999         void __iomem *ioaddr = tp->mmio_addr;
1000         u8 options;
1001         u32 wolopts = 0;
1002
1003         options = RTL_R8(Config1);
1004         if (!(options & PMEnable))
1005                 return 0;
1006
1007         options = RTL_R8(Config3);
1008         if (options & LinkUp)
1009                 wolopts |= WAKE_PHY;
1010         if (options & MagicPacket)
1011                 wolopts |= WAKE_MAGIC;
1012
1013         options = RTL_R8(Config5);
1014         if (options & UWF)
1015                 wolopts |= WAKE_UCAST;
1016         if (options & BWF)
1017                 wolopts |= WAKE_BCAST;
1018         if (options & MWF)
1019                 wolopts |= WAKE_MCAST;
1020
1021         return wolopts;
1022 }
1023
1024 static void rtl8169_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
1025 {
1026         struct rtl8169_private *tp = netdev_priv(dev);
1027
1028         spin_lock_irq(&tp->lock);
1029
1030         wol->supported = WAKE_ANY;
1031         wol->wolopts = __rtl8169_get_wol(tp);
1032
1033         spin_unlock_irq(&tp->lock);
1034 }
1035
1036 static void __rtl8169_set_wol(struct rtl8169_private *tp, u32 wolopts)
1037 {
1038         void __iomem *ioaddr = tp->mmio_addr;
1039         unsigned int i;
1040         static const struct {
1041                 u32 opt;
1042                 u16 reg;
1043                 u8  mask;
1044         } cfg[] = {
1045                 { WAKE_ANY,   Config1, PMEnable },
1046                 { WAKE_PHY,   Config3, LinkUp },
1047                 { WAKE_MAGIC, Config3, MagicPacket },
1048                 { WAKE_UCAST, Config5, UWF },
1049                 { WAKE_BCAST, Config5, BWF },
1050                 { WAKE_MCAST, Config5, MWF },
1051                 { WAKE_ANY,   Config5, LanWake }
1052         };
1053
1054         RTL_W8(Cfg9346, Cfg9346_Unlock);
1055
1056         for (i = 0; i < ARRAY_SIZE(cfg); i++) {
1057                 u8 options = RTL_R8(cfg[i].reg) & ~cfg[i].mask;
1058                 if (wolopts & cfg[i].opt)
1059                         options |= cfg[i].mask;
1060                 RTL_W8(cfg[i].reg, options);
1061         }
1062
1063         RTL_W8(Cfg9346, Cfg9346_Lock);
1064 }
1065
1066 static int rtl8169_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
1067 {
1068         struct rtl8169_private *tp = netdev_priv(dev);
1069
1070         spin_lock_irq(&tp->lock);
1071
1072         if (wol->wolopts)
1073                 tp->features |= RTL_FEATURE_WOL;
1074         else
1075                 tp->features &= ~RTL_FEATURE_WOL;
1076         __rtl8169_set_wol(tp, wol->wolopts);
1077         spin_unlock_irq(&tp->lock);
1078
1079         device_set_wakeup_enable(&tp->pci_dev->dev, wol->wolopts);
1080
1081         return 0;
1082 }
1083
1084 static void rtl8169_get_drvinfo(struct net_device *dev,
1085                                 struct ethtool_drvinfo *info)
1086 {
1087         struct rtl8169_private *tp = netdev_priv(dev);
1088
1089         strcpy(info->driver, MODULENAME);
1090         strcpy(info->version, RTL8169_VERSION);
1091         strcpy(info->bus_info, pci_name(tp->pci_dev));
1092 }
1093
1094 static int rtl8169_get_regs_len(struct net_device *dev)
1095 {
1096         return R8169_REGS_SIZE;
1097 }
1098
1099 static int rtl8169_set_speed_tbi(struct net_device *dev,
1100                                  u8 autoneg, u16 speed, u8 duplex)
1101 {
1102         struct rtl8169_private *tp = netdev_priv(dev);
1103         void __iomem *ioaddr = tp->mmio_addr;
1104         int ret = 0;
1105         u32 reg;
1106
1107         reg = RTL_R32(TBICSR);
1108         if ((autoneg == AUTONEG_DISABLE) && (speed == SPEED_1000) &&
1109             (duplex == DUPLEX_FULL)) {
1110                 RTL_W32(TBICSR, reg & ~(TBINwEnable | TBINwRestart));
1111         } else if (autoneg == AUTONEG_ENABLE)
1112                 RTL_W32(TBICSR, reg | TBINwEnable | TBINwRestart);
1113         else {
1114                 netif_warn(tp, link, dev,
1115                            "incorrect speed setting refused in TBI mode\n");
1116                 ret = -EOPNOTSUPP;
1117         }
1118
1119         return ret;
1120 }
1121
1122 static int rtl8169_set_speed_xmii(struct net_device *dev,
1123                                   u8 autoneg, u16 speed, u8 duplex)
1124 {
1125         struct rtl8169_private *tp = netdev_priv(dev);
1126         int giga_ctrl, bmcr;
1127
1128         if (autoneg == AUTONEG_ENABLE) {
1129                 int auto_nego;
1130
1131                 auto_nego = rtl_readphy(tp, MII_ADVERTISE);
1132                 auto_nego |= (ADVERTISE_10HALF | ADVERTISE_10FULL |
1133                               ADVERTISE_100HALF | ADVERTISE_100FULL);
1134                 auto_nego |= ADVERTISE_PAUSE_CAP | ADVERTISE_PAUSE_ASYM;
1135
1136                 giga_ctrl = rtl_readphy(tp, MII_CTRL1000);
1137                 giga_ctrl &= ~(ADVERTISE_1000FULL | ADVERTISE_1000HALF);
1138
1139                 /* The 8100e/8101e/8102e do Fast Ethernet only. */
1140                 if ((tp->mac_version != RTL_GIGA_MAC_VER_07) &&
1141                     (tp->mac_version != RTL_GIGA_MAC_VER_08) &&
1142                     (tp->mac_version != RTL_GIGA_MAC_VER_09) &&
1143                     (tp->mac_version != RTL_GIGA_MAC_VER_10) &&
1144                     (tp->mac_version != RTL_GIGA_MAC_VER_13) &&
1145                     (tp->mac_version != RTL_GIGA_MAC_VER_14) &&
1146                     (tp->mac_version != RTL_GIGA_MAC_VER_15) &&
1147                     (tp->mac_version != RTL_GIGA_MAC_VER_16)) {
1148                         giga_ctrl |= ADVERTISE_1000FULL | ADVERTISE_1000HALF;
1149                 } else {
1150                         netif_info(tp, link, dev,
1151                                    "PHY does not support 1000Mbps\n");
1152                 }
1153
1154                 bmcr = BMCR_ANENABLE | BMCR_ANRESTART;
1155
1156                 if ((tp->mac_version == RTL_GIGA_MAC_VER_11) ||
1157                     (tp->mac_version == RTL_GIGA_MAC_VER_12) ||
1158                     (tp->mac_version >= RTL_GIGA_MAC_VER_17)) {
1159                         /*
1160                          * Wake up the PHY.
1161                          * Vendor specific (0x1f) and reserved (0x0e) MII
1162                          * registers.
1163                          */
1164                         rtl_writephy(tp, 0x1f, 0x0000);
1165                         rtl_writephy(tp, 0x0e, 0x0000);
1166                 }
1167
1168                 rtl_writephy(tp, MII_ADVERTISE, auto_nego);
1169                 rtl_writephy(tp, MII_CTRL1000, giga_ctrl);
1170         } else {
1171                 giga_ctrl = 0;
1172
1173                 if (speed == SPEED_10)
1174                         bmcr = 0;
1175                 else if (speed == SPEED_100)
1176                         bmcr = BMCR_SPEED100;
1177                 else
1178                         return -EINVAL;
1179
1180                 if (duplex == DUPLEX_FULL)
1181                         bmcr |= BMCR_FULLDPLX;
1182
1183                 rtl_writephy(tp, 0x1f, 0x0000);
1184         }
1185
1186         tp->phy_1000_ctrl_reg = giga_ctrl;
1187
1188         rtl_writephy(tp, MII_BMCR, bmcr);
1189
1190         if ((tp->mac_version == RTL_GIGA_MAC_VER_02) ||
1191             (tp->mac_version == RTL_GIGA_MAC_VER_03)) {
1192                 if ((speed == SPEED_100) && (autoneg != AUTONEG_ENABLE)) {
1193                         rtl_writephy(tp, 0x17, 0x2138);
1194                         rtl_writephy(tp, 0x0e, 0x0260);
1195                 } else {
1196                         rtl_writephy(tp, 0x17, 0x2108);
1197                         rtl_writephy(tp, 0x0e, 0x0000);
1198                 }
1199         }
1200
1201         return 0;
1202 }
1203
1204 static int rtl8169_set_speed(struct net_device *dev,
1205                              u8 autoneg, u16 speed, u8 duplex)
1206 {
1207         struct rtl8169_private *tp = netdev_priv(dev);
1208         int ret;
1209
1210         ret = tp->set_speed(dev, autoneg, speed, duplex);
1211
1212         if (netif_running(dev) && (tp->phy_1000_ctrl_reg & ADVERTISE_1000FULL))
1213                 mod_timer(&tp->timer, jiffies + RTL8169_PHY_TIMEOUT);
1214
1215         return ret;
1216 }
1217
1218 static int rtl8169_set_settings(struct net_device *dev, struct ethtool_cmd *cmd)
1219 {
1220         struct rtl8169_private *tp = netdev_priv(dev);
1221         unsigned long flags;
1222         int ret;
1223
1224         spin_lock_irqsave(&tp->lock, flags);
1225         ret = rtl8169_set_speed(dev, cmd->autoneg, cmd->speed, cmd->duplex);
1226         spin_unlock_irqrestore(&tp->lock, flags);
1227
1228         return ret;
1229 }
1230
1231 static u32 rtl8169_get_rx_csum(struct net_device *dev)
1232 {
1233         struct rtl8169_private *tp = netdev_priv(dev);
1234
1235         return tp->cp_cmd & RxChkSum;
1236 }
1237
1238 static int rtl8169_set_rx_csum(struct net_device *dev, u32 data)
1239 {
1240         struct rtl8169_private *tp = netdev_priv(dev);
1241         void __iomem *ioaddr = tp->mmio_addr;
1242         unsigned long flags;
1243
1244         spin_lock_irqsave(&tp->lock, flags);
1245
1246         if (data)
1247                 tp->cp_cmd |= RxChkSum;
1248         else
1249                 tp->cp_cmd &= ~RxChkSum;
1250
1251         RTL_W16(CPlusCmd, tp->cp_cmd);
1252         RTL_R16(CPlusCmd);
1253
1254         spin_unlock_irqrestore(&tp->lock, flags);
1255
1256         return 0;
1257 }
1258
1259 #ifdef CONFIG_R8169_VLAN
1260
1261 static inline u32 rtl8169_tx_vlan_tag(struct rtl8169_private *tp,
1262                                       struct sk_buff *skb)
1263 {
1264         return (vlan_tx_tag_present(skb)) ?
1265                 TxVlanTag | swab16(vlan_tx_tag_get(skb)) : 0x00;
1266 }
1267
1268 static void rtl8169_vlan_rx_register(struct net_device *dev,
1269                                      struct vlan_group *grp)
1270 {
1271         struct rtl8169_private *tp = netdev_priv(dev);
1272         void __iomem *ioaddr = tp->mmio_addr;
1273         unsigned long flags;
1274
1275         spin_lock_irqsave(&tp->lock, flags);
1276         tp->vlgrp = grp;
1277         /*
1278          * Do not disable RxVlan on 8110SCd.
1279          */
1280         if (tp->vlgrp || (tp->mac_version == RTL_GIGA_MAC_VER_05))
1281                 tp->cp_cmd |= RxVlan;
1282         else
1283                 tp->cp_cmd &= ~RxVlan;
1284         RTL_W16(CPlusCmd, tp->cp_cmd);
1285         RTL_R16(CPlusCmd);
1286         spin_unlock_irqrestore(&tp->lock, flags);
1287 }
1288
1289 static int rtl8169_rx_vlan_skb(struct rtl8169_private *tp, struct RxDesc *desc,
1290                                struct sk_buff *skb, int polling)
1291 {
1292         u32 opts2 = le32_to_cpu(desc->opts2);
1293         struct vlan_group *vlgrp = tp->vlgrp;
1294         int ret;
1295
1296         if (vlgrp && (opts2 & RxVlanTag)) {
1297                 u16 vtag = swab16(opts2 & 0xffff);
1298
1299                 if (likely(polling))
1300                         vlan_gro_receive(&tp->napi, vlgrp, vtag, skb);
1301                 else
1302                         __vlan_hwaccel_rx(skb, vlgrp, vtag, polling);
1303                 ret = 0;
1304         } else
1305                 ret = -1;
1306         desc->opts2 = 0;
1307         return ret;
1308 }
1309
1310 #else /* !CONFIG_R8169_VLAN */
1311
1312 static inline u32 rtl8169_tx_vlan_tag(struct rtl8169_private *tp,
1313                                       struct sk_buff *skb)
1314 {
1315         return 0;
1316 }
1317
1318 static int rtl8169_rx_vlan_skb(struct rtl8169_private *tp, struct RxDesc *desc,
1319                                struct sk_buff *skb, int polling)
1320 {
1321         return -1;
1322 }
1323
1324 #endif
1325
1326 static int rtl8169_gset_tbi(struct net_device *dev, struct ethtool_cmd *cmd)
1327 {
1328         struct rtl8169_private *tp = netdev_priv(dev);
1329         void __iomem *ioaddr = tp->mmio_addr;
1330         u32 status;
1331
1332         cmd->supported =
1333                 SUPPORTED_1000baseT_Full | SUPPORTED_Autoneg | SUPPORTED_FIBRE;
1334         cmd->port = PORT_FIBRE;
1335         cmd->transceiver = XCVR_INTERNAL;
1336
1337         status = RTL_R32(TBICSR);
1338         cmd->advertising = (status & TBINwEnable) ?  ADVERTISED_Autoneg : 0;
1339         cmd->autoneg = !!(status & TBINwEnable);
1340
1341         cmd->speed = SPEED_1000;
1342         cmd->duplex = DUPLEX_FULL; /* Always set */
1343
1344         return 0;
1345 }
1346
1347 static int rtl8169_gset_xmii(struct net_device *dev, struct ethtool_cmd *cmd)
1348 {
1349         struct rtl8169_private *tp = netdev_priv(dev);
1350
1351         return mii_ethtool_gset(&tp->mii, cmd);
1352 }
1353
1354 static int rtl8169_get_settings(struct net_device *dev, struct ethtool_cmd *cmd)
1355 {
1356         struct rtl8169_private *tp = netdev_priv(dev);
1357         unsigned long flags;
1358         int rc;
1359
1360         spin_lock_irqsave(&tp->lock, flags);
1361
1362         rc = tp->get_settings(dev, cmd);
1363
1364         spin_unlock_irqrestore(&tp->lock, flags);
1365         return rc;
1366 }
1367
1368 static void rtl8169_get_regs(struct net_device *dev, struct ethtool_regs *regs,
1369                              void *p)
1370 {
1371         struct rtl8169_private *tp = netdev_priv(dev);
1372         unsigned long flags;
1373
1374         if (regs->len > R8169_REGS_SIZE)
1375                 regs->len = R8169_REGS_SIZE;
1376
1377         spin_lock_irqsave(&tp->lock, flags);
1378         memcpy_fromio(p, tp->mmio_addr, regs->len);
1379         spin_unlock_irqrestore(&tp->lock, flags);
1380 }
1381
1382 static u32 rtl8169_get_msglevel(struct net_device *dev)
1383 {
1384         struct rtl8169_private *tp = netdev_priv(dev);
1385
1386         return tp->msg_enable;
1387 }
1388
1389 static void rtl8169_set_msglevel(struct net_device *dev, u32 value)
1390 {
1391         struct rtl8169_private *tp = netdev_priv(dev);
1392
1393         tp->msg_enable = value;
1394 }
1395
1396 static const char rtl8169_gstrings[][ETH_GSTRING_LEN] = {
1397         "tx_packets",
1398         "rx_packets",
1399         "tx_errors",
1400         "rx_errors",
1401         "rx_missed",
1402         "align_errors",
1403         "tx_single_collisions",
1404         "tx_multi_collisions",
1405         "unicast",
1406         "broadcast",
1407         "multicast",
1408         "tx_aborted",
1409         "tx_underrun",
1410 };
1411
1412 static int rtl8169_get_sset_count(struct net_device *dev, int sset)
1413 {
1414         switch (sset) {
1415         case ETH_SS_STATS:
1416                 return ARRAY_SIZE(rtl8169_gstrings);
1417         default:
1418                 return -EOPNOTSUPP;
1419         }
1420 }
1421
1422 static void rtl8169_update_counters(struct net_device *dev)
1423 {
1424         struct rtl8169_private *tp = netdev_priv(dev);
1425         void __iomem *ioaddr = tp->mmio_addr;
1426         struct rtl8169_counters *counters;
1427         dma_addr_t paddr;
1428         u32 cmd;
1429         int wait = 1000;
1430         struct device *d = &tp->pci_dev->dev;
1431
1432         /*
1433          * Some chips are unable to dump tally counters when the receiver
1434          * is disabled.
1435          */
1436         if ((RTL_R8(ChipCmd) & CmdRxEnb) == 0)
1437                 return;
1438
1439         counters = dma_alloc_coherent(d, sizeof(*counters), &paddr, GFP_KERNEL);
1440         if (!counters)
1441                 return;
1442
1443         RTL_W32(CounterAddrHigh, (u64)paddr >> 32);
1444         cmd = (u64)paddr & DMA_BIT_MASK(32);
1445         RTL_W32(CounterAddrLow, cmd);
1446         RTL_W32(CounterAddrLow, cmd | CounterDump);
1447
1448         while (wait--) {
1449                 if ((RTL_R32(CounterAddrLow) & CounterDump) == 0) {
1450                         /* copy updated counters */
1451                         memcpy(&tp->counters, counters, sizeof(*counters));
1452                         break;
1453                 }
1454                 udelay(10);
1455         }
1456
1457         RTL_W32(CounterAddrLow, 0);
1458         RTL_W32(CounterAddrHigh, 0);
1459
1460         dma_free_coherent(d, sizeof(*counters), counters, paddr);
1461 }
1462
1463 static void rtl8169_get_ethtool_stats(struct net_device *dev,
1464                                       struct ethtool_stats *stats, u64 *data)
1465 {
1466         struct rtl8169_private *tp = netdev_priv(dev);
1467
1468         ASSERT_RTNL();
1469
1470         rtl8169_update_counters(dev);
1471
1472         data[0] = le64_to_cpu(tp->counters.tx_packets);
1473         data[1] = le64_to_cpu(tp->counters.rx_packets);
1474         data[2] = le64_to_cpu(tp->counters.tx_errors);
1475         data[3] = le32_to_cpu(tp->counters.rx_errors);
1476         data[4] = le16_to_cpu(tp->counters.rx_missed);
1477         data[5] = le16_to_cpu(tp->counters.align_errors);
1478         data[6] = le32_to_cpu(tp->counters.tx_one_collision);
1479         data[7] = le32_to_cpu(tp->counters.tx_multi_collision);
1480         data[8] = le64_to_cpu(tp->counters.rx_unicast);
1481         data[9] = le64_to_cpu(tp->counters.rx_broadcast);
1482         data[10] = le32_to_cpu(tp->counters.rx_multicast);
1483         data[11] = le16_to_cpu(tp->counters.tx_aborted);
1484         data[12] = le16_to_cpu(tp->counters.tx_underun);
1485 }
1486
1487 static void rtl8169_get_strings(struct net_device *dev, u32 stringset, u8 *data)
1488 {
1489         switch(stringset) {
1490         case ETH_SS_STATS:
1491                 memcpy(data, *rtl8169_gstrings, sizeof(rtl8169_gstrings));
1492                 break;
1493         }
1494 }
1495
1496 static const struct ethtool_ops rtl8169_ethtool_ops = {
1497         .get_drvinfo            = rtl8169_get_drvinfo,
1498         .get_regs_len           = rtl8169_get_regs_len,
1499         .get_link               = ethtool_op_get_link,
1500         .get_settings           = rtl8169_get_settings,
1501         .set_settings           = rtl8169_set_settings,
1502         .get_msglevel           = rtl8169_get_msglevel,
1503         .set_msglevel           = rtl8169_set_msglevel,
1504         .get_rx_csum            = rtl8169_get_rx_csum,
1505         .set_rx_csum            = rtl8169_set_rx_csum,
1506         .set_tx_csum            = ethtool_op_set_tx_csum,
1507         .set_sg                 = ethtool_op_set_sg,
1508         .set_tso                = ethtool_op_set_tso,
1509         .get_regs               = rtl8169_get_regs,
1510         .get_wol                = rtl8169_get_wol,
1511         .set_wol                = rtl8169_set_wol,
1512         .get_strings            = rtl8169_get_strings,
1513         .get_sset_count         = rtl8169_get_sset_count,
1514         .get_ethtool_stats      = rtl8169_get_ethtool_stats,
1515 };
1516
1517 static void rtl8169_get_mac_version(struct rtl8169_private *tp,
1518                                     void __iomem *ioaddr)
1519 {
1520         /*
1521          * The driver currently handles the 8168Bf and the 8168Be identically
1522          * but they can be identified more specifically through the test below
1523          * if needed:
1524          *
1525          * (RTL_R32(TxConfig) & 0x700000) == 0x500000 ? 8168Bf : 8168Be
1526          *
1527          * Same thing for the 8101Eb and the 8101Ec:
1528          *
1529          * (RTL_R32(TxConfig) & 0x700000) == 0x200000 ? 8101Eb : 8101Ec
1530          */
1531         static const struct {
1532                 u32 mask;
1533                 u32 val;
1534                 int mac_version;
1535         } mac_info[] = {
1536                 /* 8168D family. */
1537                 { 0x7cf00000, 0x28300000,       RTL_GIGA_MAC_VER_26 },
1538                 { 0x7cf00000, 0x28100000,       RTL_GIGA_MAC_VER_25 },
1539                 { 0x7c800000, 0x28000000,       RTL_GIGA_MAC_VER_26 },
1540
1541                 /* 8168DP family. */
1542                 { 0x7cf00000, 0x28800000,       RTL_GIGA_MAC_VER_27 },
1543                 { 0x7cf00000, 0x28a00000,       RTL_GIGA_MAC_VER_28 },
1544
1545                 /* 8168C family. */
1546                 { 0x7cf00000, 0x3cb00000,       RTL_GIGA_MAC_VER_24 },
1547                 { 0x7cf00000, 0x3c900000,       RTL_GIGA_MAC_VER_23 },
1548                 { 0x7cf00000, 0x3c800000,       RTL_GIGA_MAC_VER_18 },
1549                 { 0x7c800000, 0x3c800000,       RTL_GIGA_MAC_VER_24 },
1550                 { 0x7cf00000, 0x3c000000,       RTL_GIGA_MAC_VER_19 },
1551                 { 0x7cf00000, 0x3c200000,       RTL_GIGA_MAC_VER_20 },
1552                 { 0x7cf00000, 0x3c300000,       RTL_GIGA_MAC_VER_21 },
1553                 { 0x7cf00000, 0x3c400000,       RTL_GIGA_MAC_VER_22 },
1554                 { 0x7c800000, 0x3c000000,       RTL_GIGA_MAC_VER_22 },
1555
1556                 /* 8168B family. */
1557                 { 0x7cf00000, 0x38000000,       RTL_GIGA_MAC_VER_12 },
1558                 { 0x7cf00000, 0x38500000,       RTL_GIGA_MAC_VER_17 },
1559                 { 0x7c800000, 0x38000000,       RTL_GIGA_MAC_VER_17 },
1560                 { 0x7c800000, 0x30000000,       RTL_GIGA_MAC_VER_11 },
1561
1562                 /* 8101 family. */
1563                 { 0x7cf00000, 0x34a00000,       RTL_GIGA_MAC_VER_09 },
1564                 { 0x7cf00000, 0x24a00000,       RTL_GIGA_MAC_VER_09 },
1565                 { 0x7cf00000, 0x34900000,       RTL_GIGA_MAC_VER_08 },
1566                 { 0x7cf00000, 0x24900000,       RTL_GIGA_MAC_VER_08 },
1567                 { 0x7cf00000, 0x34800000,       RTL_GIGA_MAC_VER_07 },
1568                 { 0x7cf00000, 0x24800000,       RTL_GIGA_MAC_VER_07 },
1569                 { 0x7cf00000, 0x34000000,       RTL_GIGA_MAC_VER_13 },
1570                 { 0x7cf00000, 0x34300000,       RTL_GIGA_MAC_VER_10 },
1571                 { 0x7cf00000, 0x34200000,       RTL_GIGA_MAC_VER_16 },
1572                 { 0x7c800000, 0x34800000,       RTL_GIGA_MAC_VER_09 },
1573                 { 0x7c800000, 0x24800000,       RTL_GIGA_MAC_VER_09 },
1574                 { 0x7c800000, 0x34000000,       RTL_GIGA_MAC_VER_16 },
1575                 /* FIXME: where did these entries come from ? -- FR */
1576                 { 0xfc800000, 0x38800000,       RTL_GIGA_MAC_VER_15 },
1577                 { 0xfc800000, 0x30800000,       RTL_GIGA_MAC_VER_14 },
1578
1579                 /* 8110 family. */
1580                 { 0xfc800000, 0x98000000,       RTL_GIGA_MAC_VER_06 },
1581                 { 0xfc800000, 0x18000000,       RTL_GIGA_MAC_VER_05 },
1582                 { 0xfc800000, 0x10000000,       RTL_GIGA_MAC_VER_04 },
1583                 { 0xfc800000, 0x04000000,       RTL_GIGA_MAC_VER_03 },
1584                 { 0xfc800000, 0x00800000,       RTL_GIGA_MAC_VER_02 },
1585                 { 0xfc800000, 0x00000000,       RTL_GIGA_MAC_VER_01 },
1586
1587                 /* Catch-all */
1588                 { 0x00000000, 0x00000000,       RTL_GIGA_MAC_NONE   }
1589         }, *p = mac_info;
1590         u32 reg;
1591
1592         reg = RTL_R32(TxConfig);
1593         while ((reg & p->mask) != p->val)
1594                 p++;
1595         tp->mac_version = p->mac_version;
1596 }
1597
1598 static void rtl8169_print_mac_version(struct rtl8169_private *tp)
1599 {
1600         dprintk("mac_version = 0x%02x\n", tp->mac_version);
1601 }
1602
1603 struct phy_reg {
1604         u16 reg;
1605         u16 val;
1606 };
1607
1608 static void rtl_writephy_batch(struct rtl8169_private *tp,
1609                                const struct phy_reg *regs, int len)
1610 {
1611         while (len-- > 0) {
1612                 rtl_writephy(tp, regs->reg, regs->val);
1613                 regs++;
1614         }
1615 }
1616
1617 #define PHY_READ                0x00000000
1618 #define PHY_DATA_OR             0x10000000
1619 #define PHY_DATA_AND            0x20000000
1620 #define PHY_BJMPN               0x30000000
1621 #define PHY_READ_EFUSE          0x40000000
1622 #define PHY_READ_MAC_BYTE       0x50000000
1623 #define PHY_WRITE_MAC_BYTE      0x60000000
1624 #define PHY_CLEAR_READCOUNT     0x70000000
1625 #define PHY_WRITE               0x80000000
1626 #define PHY_READCOUNT_EQ_SKIP   0x90000000
1627 #define PHY_COMP_EQ_SKIPN       0xa0000000
1628 #define PHY_COMP_NEQ_SKIPN      0xb0000000
1629 #define PHY_WRITE_PREVIOUS      0xc0000000
1630 #define PHY_SKIPN               0xd0000000
1631 #define PHY_DELAY_MS            0xe0000000
1632 #define PHY_WRITE_ERI_WORD      0xf0000000
1633
1634 static void
1635 rtl_phy_write_fw(struct rtl8169_private *tp, const struct firmware *fw)
1636 {
1637         __le32 *phytable = (__le32 *)fw->data;
1638         struct net_device *dev = tp->dev;
1639         size_t index, fw_size = fw->size / sizeof(*phytable);
1640         u32 predata, count;
1641
1642         if (fw->size % sizeof(*phytable)) {
1643                 netif_err(tp, probe, dev, "odd sized firmware %zd\n", fw->size);
1644                 return;
1645         }
1646
1647         for (index = 0; index < fw_size; index++) {
1648                 u32 action = le32_to_cpu(phytable[index]);
1649                 u32 regno = (action & 0x0fff0000) >> 16;
1650
1651                 switch(action & 0xf0000000) {
1652                 case PHY_READ:
1653                 case PHY_DATA_OR:
1654                 case PHY_DATA_AND:
1655                 case PHY_READ_EFUSE:
1656                 case PHY_CLEAR_READCOUNT:
1657                 case PHY_WRITE:
1658                 case PHY_WRITE_PREVIOUS:
1659                 case PHY_DELAY_MS:
1660                         break;
1661
1662                 case PHY_BJMPN:
1663                         if (regno > index) {
1664                                 netif_err(tp, probe, tp->dev,
1665                                         "Out of range of firmware\n");
1666                                 return;
1667                         }
1668                         break;
1669                 case PHY_READCOUNT_EQ_SKIP:
1670                         if (index + 2 >= fw_size) {
1671                                 netif_err(tp, probe, tp->dev,
1672                                         "Out of range of firmware\n");
1673                                 return;
1674                         }
1675                         break;
1676                 case PHY_COMP_EQ_SKIPN:
1677                 case PHY_COMP_NEQ_SKIPN:
1678                 case PHY_SKIPN:
1679                         if (index + 1 + regno >= fw_size) {
1680                                 netif_err(tp, probe, tp->dev,
1681                                         "Out of range of firmware\n");
1682                                 return;
1683                         }
1684                         break;
1685
1686                 case PHY_READ_MAC_BYTE:
1687                 case PHY_WRITE_MAC_BYTE:
1688                 case PHY_WRITE_ERI_WORD:
1689                 default:
1690                         netif_err(tp, probe, tp->dev,
1691                                   "Invalid action 0x%08x\n", action);
1692                         return;
1693                 }
1694         }
1695
1696         predata = 0;
1697         count = 0;
1698
1699         for (index = 0; index < fw_size; ) {
1700                 u32 action = le32_to_cpu(phytable[index]);
1701                 u32 data = action & 0x0000ffff;
1702                 u32 regno = (action & 0x0fff0000) >> 16;
1703
1704                 if (!action)
1705                         break;
1706
1707                 switch(action & 0xf0000000) {
1708                 case PHY_READ:
1709                         predata = rtl_readphy(tp, regno);
1710                         count++;
1711                         index++;
1712                         break;
1713                 case PHY_DATA_OR:
1714                         predata |= data;
1715                         index++;
1716                         break;
1717                 case PHY_DATA_AND:
1718                         predata &= data;
1719                         index++;
1720                         break;
1721                 case PHY_BJMPN:
1722                         index -= regno;
1723                         break;
1724                 case PHY_READ_EFUSE:
1725                         predata = rtl8168d_efuse_read(tp->mmio_addr, regno);
1726                         index++;
1727                         break;
1728                 case PHY_CLEAR_READCOUNT:
1729                         count = 0;
1730                         index++;
1731                         break;
1732                 case PHY_WRITE:
1733                         rtl_writephy(tp, regno, data);
1734                         index++;
1735                         break;
1736                 case PHY_READCOUNT_EQ_SKIP:
1737                         if (count == data)
1738                                 index += 2;
1739                         else
1740                                 index += 1;
1741                         break;
1742                 case PHY_COMP_EQ_SKIPN:
1743                         if (predata == data)
1744                                 index += regno;
1745                         index++;
1746                         break;
1747                 case PHY_COMP_NEQ_SKIPN:
1748                         if (predata != data)
1749                                 index += regno;
1750                         index++;
1751                         break;
1752                 case PHY_WRITE_PREVIOUS:
1753                         rtl_writephy(tp, regno, predata);
1754                         index++;
1755                         break;
1756                 case PHY_SKIPN:
1757                         index += regno + 1;
1758                         break;
1759                 case PHY_DELAY_MS:
1760                         mdelay(data);
1761                         index++;
1762                         break;
1763
1764                 case PHY_READ_MAC_BYTE:
1765                 case PHY_WRITE_MAC_BYTE:
1766                 case PHY_WRITE_ERI_WORD:
1767                 default:
1768                         BUG();
1769                 }
1770         }
1771 }
1772
1773 static void rtl_release_firmware(struct rtl8169_private *tp)
1774 {
1775         release_firmware(tp->fw);
1776         tp->fw = NULL;
1777 }
1778
1779 static int rtl_apply_firmware(struct rtl8169_private *tp, const char *fw_name)
1780 {
1781         const struct firmware **fw = &tp->fw;
1782         int rc = !*fw;
1783
1784         if (rc) {
1785                 rc = request_firmware(fw, fw_name, &tp->pci_dev->dev);
1786                 if (rc < 0)
1787                         goto out;
1788         }
1789
1790         /* TODO: release firmware once rtl_phy_write_fw signals failures. */
1791         rtl_phy_write_fw(tp, *fw);
1792 out:
1793         return rc;
1794 }
1795
1796 static void rtl8169s_hw_phy_config(struct rtl8169_private *tp)
1797 {
1798         static const struct phy_reg phy_reg_init[] = {
1799                 { 0x1f, 0x0001 },
1800                 { 0x06, 0x006e },
1801                 { 0x08, 0x0708 },
1802                 { 0x15, 0x4000 },
1803                 { 0x18, 0x65c7 },
1804
1805                 { 0x1f, 0x0001 },
1806                 { 0x03, 0x00a1 },
1807                 { 0x02, 0x0008 },
1808                 { 0x01, 0x0120 },
1809                 { 0x00, 0x1000 },
1810                 { 0x04, 0x0800 },
1811                 { 0x04, 0x0000 },
1812
1813                 { 0x03, 0xff41 },
1814                 { 0x02, 0xdf60 },
1815                 { 0x01, 0x0140 },
1816                 { 0x00, 0x0077 },
1817                 { 0x04, 0x7800 },
1818                 { 0x04, 0x7000 },
1819
1820                 { 0x03, 0x802f },
1821                 { 0x02, 0x4f02 },
1822                 { 0x01, 0x0409 },
1823                 { 0x00, 0xf0f9 },
1824                 { 0x04, 0x9800 },
1825                 { 0x04, 0x9000 },
1826
1827                 { 0x03, 0xdf01 },
1828                 { 0x02, 0xdf20 },
1829                 { 0x01, 0xff95 },
1830                 { 0x00, 0xba00 },
1831                 { 0x04, 0xa800 },
1832                 { 0x04, 0xa000 },
1833
1834                 { 0x03, 0xff41 },
1835                 { 0x02, 0xdf20 },
1836                 { 0x01, 0x0140 },
1837                 { 0x00, 0x00bb },
1838                 { 0x04, 0xb800 },
1839                 { 0x04, 0xb000 },
1840
1841                 { 0x03, 0xdf41 },
1842                 { 0x02, 0xdc60 },
1843                 { 0x01, 0x6340 },
1844                 { 0x00, 0x007d },
1845                 { 0x04, 0xd800 },
1846                 { 0x04, 0xd000 },
1847
1848                 { 0x03, 0xdf01 },
1849                 { 0x02, 0xdf20 },
1850                 { 0x01, 0x100a },
1851                 { 0x00, 0xa0ff },
1852                 { 0x04, 0xf800 },
1853                 { 0x04, 0xf000 },
1854
1855                 { 0x1f, 0x0000 },
1856                 { 0x0b, 0x0000 },
1857                 { 0x00, 0x9200 }
1858         };
1859
1860         rtl_writephy_batch(tp, phy_reg_init, ARRAY_SIZE(phy_reg_init));
1861 }
1862
1863 static void rtl8169sb_hw_phy_config(struct rtl8169_private *tp)
1864 {
1865         static const struct phy_reg phy_reg_init[] = {
1866                 { 0x1f, 0x0002 },
1867                 { 0x01, 0x90d0 },
1868                 { 0x1f, 0x0000 }
1869         };
1870
1871         rtl_writephy_batch(tp, phy_reg_init, ARRAY_SIZE(phy_reg_init));
1872 }
1873
1874 static void rtl8169scd_hw_phy_config_quirk(struct rtl8169_private *tp)
1875 {
1876         struct pci_dev *pdev = tp->pci_dev;
1877         u16 vendor_id, device_id;
1878
1879         pci_read_config_word(pdev, PCI_SUBSYSTEM_VENDOR_ID, &vendor_id);
1880         pci_read_config_word(pdev, PCI_SUBSYSTEM_ID, &device_id);
1881
1882         if ((vendor_id != PCI_VENDOR_ID_GIGABYTE) || (device_id != 0xe000))
1883                 return;
1884
1885         rtl_writephy(tp, 0x1f, 0x0001);
1886         rtl_writephy(tp, 0x10, 0xf01b);
1887         rtl_writephy(tp, 0x1f, 0x0000);
1888 }
1889
1890 static void rtl8169scd_hw_phy_config(struct rtl8169_private *tp)
1891 {
1892         static const struct phy_reg phy_reg_init[] = {
1893                 { 0x1f, 0x0001 },
1894                 { 0x04, 0x0000 },
1895                 { 0x03, 0x00a1 },
1896                 { 0x02, 0x0008 },
1897                 { 0x01, 0x0120 },
1898                 { 0x00, 0x1000 },
1899                 { 0x04, 0x0800 },
1900                 { 0x04, 0x9000 },
1901                 { 0x03, 0x802f },
1902                 { 0x02, 0x4f02 },
1903                 { 0x01, 0x0409 },
1904                 { 0x00, 0xf099 },
1905                 { 0x04, 0x9800 },
1906                 { 0x04, 0xa000 },
1907                 { 0x03, 0xdf01 },
1908                 { 0x02, 0xdf20 },
1909                 { 0x01, 0xff95 },
1910                 { 0x00, 0xba00 },
1911                 { 0x04, 0xa800 },
1912                 { 0x04, 0xf000 },
1913                 { 0x03, 0xdf01 },
1914                 { 0x02, 0xdf20 },
1915                 { 0x01, 0x101a },
1916                 { 0x00, 0xa0ff },
1917                 { 0x04, 0xf800 },
1918                 { 0x04, 0x0000 },
1919                 { 0x1f, 0x0000 },
1920
1921                 { 0x1f, 0x0001 },
1922                 { 0x10, 0xf41b },
1923                 { 0x14, 0xfb54 },
1924                 { 0x18, 0xf5c7 },
1925                 { 0x1f, 0x0000 },
1926
1927                 { 0x1f, 0x0001 },
1928                 { 0x17, 0x0cc0 },
1929                 { 0x1f, 0x0000 }
1930         };
1931
1932         rtl_writephy_batch(tp, phy_reg_init, ARRAY_SIZE(phy_reg_init));
1933
1934         rtl8169scd_hw_phy_config_quirk(tp);
1935 }
1936
1937 static void rtl8169sce_hw_phy_config(struct rtl8169_private *tp)
1938 {
1939         static const struct phy_reg phy_reg_init[] = {
1940                 { 0x1f, 0x0001 },
1941                 { 0x04, 0x0000 },
1942                 { 0x03, 0x00a1 },
1943                 { 0x02, 0x0008 },
1944                 { 0x01, 0x0120 },
1945                 { 0x00, 0x1000 },
1946                 { 0x04, 0x0800 },
1947                 { 0x04, 0x9000 },
1948                 { 0x03, 0x802f },
1949                 { 0x02, 0x4f02 },
1950                 { 0x01, 0x0409 },
1951                 { 0x00, 0xf099 },
1952                 { 0x04, 0x9800 },
1953                 { 0x04, 0xa000 },
1954                 { 0x03, 0xdf01 },
1955                 { 0x02, 0xdf20 },
1956                 { 0x01, 0xff95 },
1957                 { 0x00, 0xba00 },
1958                 { 0x04, 0xa800 },
1959                 { 0x04, 0xf000 },
1960                 { 0x03, 0xdf01 },
1961                 { 0x02, 0xdf20 },
1962                 { 0x01, 0x101a },
1963                 { 0x00, 0xa0ff },
1964                 { 0x04, 0xf800 },
1965                 { 0x04, 0x0000 },
1966                 { 0x1f, 0x0000 },
1967
1968                 { 0x1f, 0x0001 },
1969                 { 0x0b, 0x8480 },
1970                 { 0x1f, 0x0000 },
1971
1972                 { 0x1f, 0x0001 },
1973                 { 0x18, 0x67c7 },
1974                 { 0x04, 0x2000 },
1975                 { 0x03, 0x002f },
1976                 { 0x02, 0x4360 },
1977                 { 0x01, 0x0109 },
1978                 { 0x00, 0x3022 },
1979                 { 0x04, 0x2800 },
1980                 { 0x1f, 0x0000 },
1981
1982                 { 0x1f, 0x0001 },
1983                 { 0x17, 0x0cc0 },
1984                 { 0x1f, 0x0000 }
1985         };
1986
1987         rtl_writephy_batch(tp, phy_reg_init, ARRAY_SIZE(phy_reg_init));
1988 }
1989
1990 static void rtl8168bb_hw_phy_config(struct rtl8169_private *tp)
1991 {
1992         static const struct phy_reg phy_reg_init[] = {
1993                 { 0x10, 0xf41b },
1994                 { 0x1f, 0x0000 }
1995         };
1996
1997         rtl_writephy(tp, 0x1f, 0x0001);
1998         rtl_patchphy(tp, 0x16, 1 << 0);
1999
2000         rtl_writephy_batch(tp, phy_reg_init, ARRAY_SIZE(phy_reg_init));
2001 }
2002
2003 static void rtl8168bef_hw_phy_config(struct rtl8169_private *tp)
2004 {
2005         static const struct phy_reg phy_reg_init[] = {
2006                 { 0x1f, 0x0001 },
2007                 { 0x10, 0xf41b },
2008                 { 0x1f, 0x0000 }
2009         };
2010
2011         rtl_writephy_batch(tp, phy_reg_init, ARRAY_SIZE(phy_reg_init));
2012 }
2013
2014 static void rtl8168cp_1_hw_phy_config(struct rtl8169_private *tp)
2015 {
2016         static const struct phy_reg phy_reg_init[] = {
2017                 { 0x1f, 0x0000 },
2018                 { 0x1d, 0x0f00 },
2019                 { 0x1f, 0x0002 },
2020                 { 0x0c, 0x1ec8 },
2021                 { 0x1f, 0x0000 }
2022         };
2023
2024         rtl_writephy_batch(tp, phy_reg_init, ARRAY_SIZE(phy_reg_init));
2025 }
2026
2027 static void rtl8168cp_2_hw_phy_config(struct rtl8169_private *tp)
2028 {
2029         static const struct phy_reg phy_reg_init[] = {
2030                 { 0x1f, 0x0001 },
2031                 { 0x1d, 0x3d98 },
2032                 { 0x1f, 0x0000 }
2033         };
2034
2035         rtl_writephy(tp, 0x1f, 0x0000);
2036         rtl_patchphy(tp, 0x14, 1 << 5);
2037         rtl_patchphy(tp, 0x0d, 1 << 5);
2038
2039         rtl_writephy_batch(tp, phy_reg_init, ARRAY_SIZE(phy_reg_init));
2040 }
2041
2042 static void rtl8168c_1_hw_phy_config(struct rtl8169_private *tp)
2043 {
2044         static const struct phy_reg phy_reg_init[] = {
2045                 { 0x1f, 0x0001 },
2046                 { 0x12, 0x2300 },
2047                 { 0x1f, 0x0002 },
2048                 { 0x00, 0x88d4 },
2049                 { 0x01, 0x82b1 },
2050                 { 0x03, 0x7002 },
2051                 { 0x08, 0x9e30 },
2052                 { 0x09, 0x01f0 },
2053                 { 0x0a, 0x5500 },
2054                 { 0x0c, 0x00c8 },
2055                 { 0x1f, 0x0003 },
2056                 { 0x12, 0xc096 },
2057                 { 0x16, 0x000a },
2058                 { 0x1f, 0x0000 },
2059                 { 0x1f, 0x0000 },
2060                 { 0x09, 0x2000 },
2061                 { 0x09, 0x0000 }
2062         };
2063
2064         rtl_writephy_batch(tp, phy_reg_init, ARRAY_SIZE(phy_reg_init));
2065
2066         rtl_patchphy(tp, 0x14, 1 << 5);
2067         rtl_patchphy(tp, 0x0d, 1 << 5);
2068         rtl_writephy(tp, 0x1f, 0x0000);
2069 }
2070
2071 static void rtl8168c_2_hw_phy_config(struct rtl8169_private *tp)
2072 {
2073         static const struct phy_reg phy_reg_init[] = {
2074                 { 0x1f, 0x0001 },
2075                 { 0x12, 0x2300 },
2076                 { 0x03, 0x802f },
2077                 { 0x02, 0x4f02 },
2078                 { 0x01, 0x0409 },
2079                 { 0x00, 0xf099 },
2080                 { 0x04, 0x9800 },
2081                 { 0x04, 0x9000 },
2082                 { 0x1d, 0x3d98 },
2083                 { 0x1f, 0x0002 },
2084                 { 0x0c, 0x7eb8 },
2085                 { 0x06, 0x0761 },
2086                 { 0x1f, 0x0003 },
2087                 { 0x16, 0x0f0a },
2088                 { 0x1f, 0x0000 }
2089         };
2090
2091         rtl_writephy_batch(tp, phy_reg_init, ARRAY_SIZE(phy_reg_init));
2092
2093         rtl_patchphy(tp, 0x16, 1 << 0);
2094         rtl_patchphy(tp, 0x14, 1 << 5);
2095         rtl_patchphy(tp, 0x0d, 1 << 5);
2096         rtl_writephy(tp, 0x1f, 0x0000);
2097 }
2098
2099 static void rtl8168c_3_hw_phy_config(struct rtl8169_private *tp)
2100 {
2101         static const struct phy_reg phy_reg_init[] = {
2102                 { 0x1f, 0x0001 },
2103                 { 0x12, 0x2300 },
2104                 { 0x1d, 0x3d98 },
2105                 { 0x1f, 0x0002 },
2106                 { 0x0c, 0x7eb8 },
2107                 { 0x06, 0x5461 },
2108                 { 0x1f, 0x0003 },
2109                 { 0x16, 0x0f0a },
2110                 { 0x1f, 0x0000 }
2111         };
2112
2113         rtl_writephy_batch(tp, phy_reg_init, ARRAY_SIZE(phy_reg_init));
2114
2115         rtl_patchphy(tp, 0x16, 1 << 0);
2116         rtl_patchphy(tp, 0x14, 1 << 5);
2117         rtl_patchphy(tp, 0x0d, 1 << 5);
2118         rtl_writephy(tp, 0x1f, 0x0000);
2119 }
2120
2121 static void rtl8168c_4_hw_phy_config(struct rtl8169_private *tp)
2122 {
2123         rtl8168c_3_hw_phy_config(tp);
2124 }
2125
2126 static void rtl8168d_1_hw_phy_config(struct rtl8169_private *tp)
2127 {
2128         static const struct phy_reg phy_reg_init_0[] = {
2129                 /* Channel Estimation */
2130                 { 0x1f, 0x0001 },
2131                 { 0x06, 0x4064 },
2132                 { 0x07, 0x2863 },
2133                 { 0x08, 0x059c },
2134                 { 0x09, 0x26b4 },
2135                 { 0x0a, 0x6a19 },
2136                 { 0x0b, 0xdcc8 },
2137                 { 0x10, 0xf06d },
2138                 { 0x14, 0x7f68 },
2139                 { 0x18, 0x7fd9 },
2140                 { 0x1c, 0xf0ff },
2141                 { 0x1d, 0x3d9c },
2142                 { 0x1f, 0x0003 },
2143                 { 0x12, 0xf49f },
2144                 { 0x13, 0x070b },
2145                 { 0x1a, 0x05ad },
2146                 { 0x14, 0x94c0 },
2147
2148                 /*
2149                  * Tx Error Issue
2150                  * enhance line driver power
2151                  */
2152                 { 0x1f, 0x0002 },
2153                 { 0x06, 0x5561 },
2154                 { 0x1f, 0x0005 },
2155                 { 0x05, 0x8332 },
2156                 { 0x06, 0x5561 },
2157
2158                 /*
2159                  * Can not link to 1Gbps with bad cable
2160                  * Decrease SNR threshold form 21.07dB to 19.04dB
2161                  */
2162                 { 0x1f, 0x0001 },
2163                 { 0x17, 0x0cc0 },
2164
2165                 { 0x1f, 0x0000 },
2166                 { 0x0d, 0xf880 }
2167         };
2168         void __iomem *ioaddr = tp->mmio_addr;
2169
2170         rtl_writephy_batch(tp, phy_reg_init_0, ARRAY_SIZE(phy_reg_init_0));
2171
2172         /*
2173          * Rx Error Issue
2174          * Fine Tune Switching regulator parameter
2175          */
2176         rtl_writephy(tp, 0x1f, 0x0002);
2177         rtl_w1w0_phy(tp, 0x0b, 0x0010, 0x00ef);
2178         rtl_w1w0_phy(tp, 0x0c, 0xa200, 0x5d00);
2179
2180         if (rtl8168d_efuse_read(ioaddr, 0x01) == 0xb1) {
2181                 static const struct phy_reg phy_reg_init[] = {
2182                         { 0x1f, 0x0002 },
2183                         { 0x05, 0x669a },
2184                         { 0x1f, 0x0005 },
2185                         { 0x05, 0x8330 },
2186                         { 0x06, 0x669a },
2187                         { 0x1f, 0x0002 }
2188                 };
2189                 int val;
2190
2191                 rtl_writephy_batch(tp, phy_reg_init, ARRAY_SIZE(phy_reg_init));
2192
2193                 val = rtl_readphy(tp, 0x0d);
2194
2195                 if ((val & 0x00ff) != 0x006c) {
2196                         static const u32 set[] = {
2197                                 0x0065, 0x0066, 0x0067, 0x0068,
2198                                 0x0069, 0x006a, 0x006b, 0x006c
2199                         };
2200                         int i;
2201
2202                         rtl_writephy(tp, 0x1f, 0x0002);
2203
2204                         val &= 0xff00;
2205                         for (i = 0; i < ARRAY_SIZE(set); i++)
2206                                 rtl_writephy(tp, 0x0d, val | set[i]);
2207                 }
2208         } else {
2209                 static const struct phy_reg phy_reg_init[] = {
2210                         { 0x1f, 0x0002 },
2211                         { 0x05, 0x6662 },
2212                         { 0x1f, 0x0005 },
2213                         { 0x05, 0x8330 },
2214                         { 0x06, 0x6662 }
2215                 };
2216
2217                 rtl_writephy_batch(tp, phy_reg_init, ARRAY_SIZE(phy_reg_init));
2218         }
2219
2220         /* RSET couple improve */
2221         rtl_writephy(tp, 0x1f, 0x0002);
2222         rtl_patchphy(tp, 0x0d, 0x0300);
2223         rtl_patchphy(tp, 0x0f, 0x0010);
2224
2225         /* Fine tune PLL performance */
2226         rtl_writephy(tp, 0x1f, 0x0002);
2227         rtl_w1w0_phy(tp, 0x02, 0x0100, 0x0600);
2228         rtl_w1w0_phy(tp, 0x03, 0x0000, 0xe000);
2229
2230         rtl_writephy(tp, 0x1f, 0x0005);
2231         rtl_writephy(tp, 0x05, 0x001b);
2232         if ((rtl_readphy(tp, 0x06) != 0xbf00) ||
2233             (rtl_apply_firmware(tp, FIRMWARE_8168D_1) < 0)) {
2234                 netif_warn(tp, probe, tp->dev, "unable to apply firmware patch\n");
2235         }
2236
2237         rtl_writephy(tp, 0x1f, 0x0000);
2238 }
2239
2240 static void rtl8168d_2_hw_phy_config(struct rtl8169_private *tp)
2241 {
2242         static const struct phy_reg phy_reg_init_0[] = {
2243                 /* Channel Estimation */
2244                 { 0x1f, 0x0001 },
2245                 { 0x06, 0x4064 },
2246                 { 0x07, 0x2863 },
2247                 { 0x08, 0x059c },
2248                 { 0x09, 0x26b4 },
2249                 { 0x0a, 0x6a19 },
2250                 { 0x0b, 0xdcc8 },
2251                 { 0x10, 0xf06d },
2252                 { 0x14, 0x7f68 },
2253                 { 0x18, 0x7fd9 },
2254                 { 0x1c, 0xf0ff },
2255                 { 0x1d, 0x3d9c },
2256                 { 0x1f, 0x0003 },
2257                 { 0x12, 0xf49f },
2258                 { 0x13, 0x070b },
2259                 { 0x1a, 0x05ad },
2260                 { 0x14, 0x94c0 },
2261
2262                 /*
2263                  * Tx Error Issue
2264                  * enhance line driver power
2265                  */
2266                 { 0x1f, 0x0002 },
2267                 { 0x06, 0x5561 },
2268                 { 0x1f, 0x0005 },
2269                 { 0x05, 0x8332 },
2270                 { 0x06, 0x5561 },
2271
2272                 /*
2273                  * Can not link to 1Gbps with bad cable
2274                  * Decrease SNR threshold form 21.07dB to 19.04dB
2275                  */
2276                 { 0x1f, 0x0001 },
2277                 { 0x17, 0x0cc0 },
2278
2279                 { 0x1f, 0x0000 },
2280                 { 0x0d, 0xf880 }
2281         };
2282         void __iomem *ioaddr = tp->mmio_addr;
2283
2284         rtl_writephy_batch(tp, phy_reg_init_0, ARRAY_SIZE(phy_reg_init_0));
2285
2286         if (rtl8168d_efuse_read(ioaddr, 0x01) == 0xb1) {
2287                 static const struct phy_reg phy_reg_init[] = {
2288                         { 0x1f, 0x0002 },
2289                         { 0x05, 0x669a },
2290                         { 0x1f, 0x0005 },
2291                         { 0x05, 0x8330 },
2292                         { 0x06, 0x669a },
2293
2294                         { 0x1f, 0x0002 }
2295                 };
2296                 int val;
2297
2298                 rtl_writephy_batch(tp, phy_reg_init, ARRAY_SIZE(phy_reg_init));
2299
2300                 val = rtl_readphy(tp, 0x0d);
2301                 if ((val & 0x00ff) != 0x006c) {
2302                         static const u32 set[] = {
2303                                 0x0065, 0x0066, 0x0067, 0x0068,
2304                                 0x0069, 0x006a, 0x006b, 0x006c
2305                         };
2306                         int i;
2307
2308                         rtl_writephy(tp, 0x1f, 0x0002);
2309
2310                         val &= 0xff00;
2311                         for (i = 0; i < ARRAY_SIZE(set); i++)
2312                                 rtl_writephy(tp, 0x0d, val | set[i]);
2313                 }
2314         } else {
2315                 static const struct phy_reg phy_reg_init[] = {
2316                         { 0x1f, 0x0002 },
2317                         { 0x05, 0x2642 },
2318                         { 0x1f, 0x0005 },
2319                         { 0x05, 0x8330 },
2320                         { 0x06, 0x2642 }
2321                 };
2322
2323                 rtl_writephy_batch(tp, phy_reg_init, ARRAY_SIZE(phy_reg_init));
2324         }
2325
2326         /* Fine tune PLL performance */
2327         rtl_writephy(tp, 0x1f, 0x0002);
2328         rtl_w1w0_phy(tp, 0x02, 0x0100, 0x0600);
2329         rtl_w1w0_phy(tp, 0x03, 0x0000, 0xe000);
2330
2331         /* Switching regulator Slew rate */
2332         rtl_writephy(tp, 0x1f, 0x0002);
2333         rtl_patchphy(tp, 0x0f, 0x0017);
2334
2335         rtl_writephy(tp, 0x1f, 0x0005);
2336         rtl_writephy(tp, 0x05, 0x001b);
2337         if ((rtl_readphy(tp, 0x06) != 0xb300) ||
2338             (rtl_apply_firmware(tp, FIRMWARE_8168D_2) < 0)) {
2339                 netif_warn(tp, probe, tp->dev, "unable to apply firmware patch\n");
2340         }
2341
2342         rtl_writephy(tp, 0x1f, 0x0000);
2343 }
2344
2345 static void rtl8168d_3_hw_phy_config(struct rtl8169_private *tp)
2346 {
2347         static const struct phy_reg phy_reg_init[] = {
2348                 { 0x1f, 0x0002 },
2349                 { 0x10, 0x0008 },
2350                 { 0x0d, 0x006c },
2351
2352                 { 0x1f, 0x0000 },
2353                 { 0x0d, 0xf880 },
2354
2355                 { 0x1f, 0x0001 },
2356                 { 0x17, 0x0cc0 },
2357
2358                 { 0x1f, 0x0001 },
2359                 { 0x0b, 0xa4d8 },
2360                 { 0x09, 0x281c },
2361                 { 0x07, 0x2883 },
2362                 { 0x0a, 0x6b35 },
2363                 { 0x1d, 0x3da4 },
2364                 { 0x1c, 0xeffd },
2365                 { 0x14, 0x7f52 },
2366                 { 0x18, 0x7fc6 },
2367                 { 0x08, 0x0601 },
2368                 { 0x06, 0x4063 },
2369                 { 0x10, 0xf074 },
2370                 { 0x1f, 0x0003 },
2371                 { 0x13, 0x0789 },
2372                 { 0x12, 0xf4bd },
2373                 { 0x1a, 0x04fd },
2374                 { 0x14, 0x84b0 },
2375                 { 0x1f, 0x0000 },
2376                 { 0x00, 0x9200 },
2377
2378                 { 0x1f, 0x0005 },
2379                 { 0x01, 0x0340 },
2380                 { 0x1f, 0x0001 },
2381                 { 0x04, 0x4000 },
2382                 { 0x03, 0x1d21 },
2383                 { 0x02, 0x0c32 },
2384                 { 0x01, 0x0200 },
2385                 { 0x00, 0x5554 },
2386                 { 0x04, 0x4800 },
2387                 { 0x04, 0x4000 },
2388                 { 0x04, 0xf000 },
2389                 { 0x03, 0xdf01 },
2390                 { 0x02, 0xdf20 },
2391                 { 0x01, 0x101a },
2392                 { 0x00, 0xa0ff },
2393                 { 0x04, 0xf800 },
2394                 { 0x04, 0xf000 },
2395                 { 0x1f, 0x0000 },
2396
2397                 { 0x1f, 0x0007 },
2398                 { 0x1e, 0x0023 },
2399                 { 0x16, 0x0000 },
2400                 { 0x1f, 0x0000 }
2401         };
2402
2403         rtl_writephy_batch(tp, phy_reg_init, ARRAY_SIZE(phy_reg_init));
2404 }
2405
2406 static void rtl8168d_4_hw_phy_config(struct rtl8169_private *tp)
2407 {
2408         static const struct phy_reg phy_reg_init[] = {
2409                 { 0x1f, 0x0001 },
2410                 { 0x17, 0x0cc0 },
2411
2412                 { 0x1f, 0x0007 },
2413                 { 0x1e, 0x002d },
2414                 { 0x18, 0x0040 },
2415                 { 0x1f, 0x0000 }
2416         };
2417
2418         rtl_writephy_batch(tp, phy_reg_init, ARRAY_SIZE(phy_reg_init));
2419         rtl_patchphy(tp, 0x0d, 1 << 5);
2420 }
2421
2422 static void rtl8102e_hw_phy_config(struct rtl8169_private *tp)
2423 {
2424         static const struct phy_reg phy_reg_init[] = {
2425                 { 0x1f, 0x0003 },
2426                 { 0x08, 0x441d },
2427                 { 0x01, 0x9100 },
2428                 { 0x1f, 0x0000 }
2429         };
2430
2431         rtl_writephy(tp, 0x1f, 0x0000);
2432         rtl_patchphy(tp, 0x11, 1 << 12);
2433         rtl_patchphy(tp, 0x19, 1 << 13);
2434         rtl_patchphy(tp, 0x10, 1 << 15);
2435
2436         rtl_writephy_batch(tp, phy_reg_init, ARRAY_SIZE(phy_reg_init));
2437 }
2438
2439 static void rtl_hw_phy_config(struct net_device *dev)
2440 {
2441         struct rtl8169_private *tp = netdev_priv(dev);
2442
2443         rtl8169_print_mac_version(tp);
2444
2445         switch (tp->mac_version) {
2446         case RTL_GIGA_MAC_VER_01:
2447                 break;
2448         case RTL_GIGA_MAC_VER_02:
2449         case RTL_GIGA_MAC_VER_03:
2450                 rtl8169s_hw_phy_config(tp);
2451                 break;
2452         case RTL_GIGA_MAC_VER_04:
2453                 rtl8169sb_hw_phy_config(tp);
2454                 break;
2455         case RTL_GIGA_MAC_VER_05:
2456                 rtl8169scd_hw_phy_config(tp);
2457                 break;
2458         case RTL_GIGA_MAC_VER_06:
2459                 rtl8169sce_hw_phy_config(tp);
2460                 break;
2461         case RTL_GIGA_MAC_VER_07:
2462         case RTL_GIGA_MAC_VER_08:
2463         case RTL_GIGA_MAC_VER_09:
2464                 rtl8102e_hw_phy_config(tp);
2465                 break;
2466         case RTL_GIGA_MAC_VER_11:
2467                 rtl8168bb_hw_phy_config(tp);
2468                 break;
2469         case RTL_GIGA_MAC_VER_12:
2470                 rtl8168bef_hw_phy_config(tp);
2471                 break;
2472         case RTL_GIGA_MAC_VER_17:
2473                 rtl8168bef_hw_phy_config(tp);
2474                 break;
2475         case RTL_GIGA_MAC_VER_18:
2476                 rtl8168cp_1_hw_phy_config(tp);
2477                 break;
2478         case RTL_GIGA_MAC_VER_19:
2479                 rtl8168c_1_hw_phy_config(tp);
2480                 break;
2481         case RTL_GIGA_MAC_VER_20:
2482                 rtl8168c_2_hw_phy_config(tp);
2483                 break;
2484         case RTL_GIGA_MAC_VER_21:
2485                 rtl8168c_3_hw_phy_config(tp);
2486                 break;
2487         case RTL_GIGA_MAC_VER_22:
2488                 rtl8168c_4_hw_phy_config(tp);
2489                 break;
2490         case RTL_GIGA_MAC_VER_23:
2491         case RTL_GIGA_MAC_VER_24:
2492                 rtl8168cp_2_hw_phy_config(tp);
2493                 break;
2494         case RTL_GIGA_MAC_VER_25:
2495                 rtl8168d_1_hw_phy_config(tp);
2496                 break;
2497         case RTL_GIGA_MAC_VER_26:
2498                 rtl8168d_2_hw_phy_config(tp);
2499                 break;
2500         case RTL_GIGA_MAC_VER_27:
2501                 rtl8168d_3_hw_phy_config(tp);
2502                 break;
2503         case RTL_GIGA_MAC_VER_28:
2504                 rtl8168d_4_hw_phy_config(tp);
2505                 break;
2506
2507         default:
2508                 break;
2509         }
2510 }
2511
2512 static void rtl8169_phy_timer(unsigned long __opaque)
2513 {
2514         struct net_device *dev = (struct net_device *)__opaque;
2515         struct rtl8169_private *tp = netdev_priv(dev);
2516         struct timer_list *timer = &tp->timer;
2517         void __iomem *ioaddr = tp->mmio_addr;
2518         unsigned long timeout = RTL8169_PHY_TIMEOUT;
2519
2520         assert(tp->mac_version > RTL_GIGA_MAC_VER_01);
2521
2522         if (!(tp->phy_1000_ctrl_reg & ADVERTISE_1000FULL))
2523                 return;
2524
2525         spin_lock_irq(&tp->lock);
2526
2527         if (tp->phy_reset_pending(tp)) {
2528                 /*
2529                  * A busy loop could burn quite a few cycles on nowadays CPU.
2530                  * Let's delay the execution of the timer for a few ticks.
2531                  */
2532                 timeout = HZ/10;
2533                 goto out_mod_timer;
2534         }
2535
2536         if (tp->link_ok(ioaddr))
2537                 goto out_unlock;
2538
2539         netif_warn(tp, link, dev, "PHY reset until link up\n");
2540
2541         tp->phy_reset_enable(tp);
2542
2543 out_mod_timer:
2544         mod_timer(timer, jiffies + timeout);
2545 out_unlock:
2546         spin_unlock_irq(&tp->lock);
2547 }
2548
2549 static inline void rtl8169_delete_timer(struct net_device *dev)
2550 {
2551         struct rtl8169_private *tp = netdev_priv(dev);
2552         struct timer_list *timer = &tp->timer;
2553
2554         if (tp->mac_version <= RTL_GIGA_MAC_VER_01)
2555                 return;
2556
2557         del_timer_sync(timer);
2558 }
2559
2560 static inline void rtl8169_request_timer(struct net_device *dev)
2561 {
2562         struct rtl8169_private *tp = netdev_priv(dev);
2563         struct timer_list *timer = &tp->timer;
2564
2565         if (tp->mac_version <= RTL_GIGA_MAC_VER_01)
2566                 return;
2567
2568         mod_timer(timer, jiffies + RTL8169_PHY_TIMEOUT);
2569 }
2570
2571 #ifdef CONFIG_NET_POLL_CONTROLLER
2572 /*
2573  * Polling 'interrupt' - used by things like netconsole to send skbs
2574  * without having to re-enable interrupts. It's not called while
2575  * the interrupt routine is executing.
2576  */
2577 static void rtl8169_netpoll(struct net_device *dev)
2578 {
2579         struct rtl8169_private *tp = netdev_priv(dev);
2580         struct pci_dev *pdev = tp->pci_dev;
2581
2582         disable_irq(pdev->irq);
2583         rtl8169_interrupt(pdev->irq, dev);
2584         enable_irq(pdev->irq);
2585 }
2586 #endif
2587
2588 static void rtl8169_release_board(struct pci_dev *pdev, struct net_device *dev,
2589                                   void __iomem *ioaddr)
2590 {
2591         iounmap(ioaddr);
2592         pci_release_regions(pdev);
2593         pci_clear_mwi(pdev);
2594         pci_disable_device(pdev);
2595         free_netdev(dev);
2596 }
2597
2598 static void rtl8169_phy_reset(struct net_device *dev,
2599                               struct rtl8169_private *tp)
2600 {
2601         unsigned int i;
2602
2603         tp->phy_reset_enable(tp);
2604         for (i = 0; i < 100; i++) {
2605                 if (!tp->phy_reset_pending(tp))
2606                         return;
2607                 msleep(1);
2608         }
2609         netif_err(tp, link, dev, "PHY reset failed\n");
2610 }
2611
2612 static void rtl8169_init_phy(struct net_device *dev, struct rtl8169_private *tp)
2613 {
2614         void __iomem *ioaddr = tp->mmio_addr;
2615
2616         rtl_hw_phy_config(dev);
2617
2618         if (tp->mac_version <= RTL_GIGA_MAC_VER_06) {
2619                 dprintk("Set MAC Reg C+CR Offset 0x82h = 0x01h\n");
2620                 RTL_W8(0x82, 0x01);
2621         }
2622
2623         pci_write_config_byte(tp->pci_dev, PCI_LATENCY_TIMER, 0x40);
2624
2625         if (tp->mac_version <= RTL_GIGA_MAC_VER_06)
2626                 pci_write_config_byte(tp->pci_dev, PCI_CACHE_LINE_SIZE, 0x08);
2627
2628         if (tp->mac_version == RTL_GIGA_MAC_VER_02) {
2629                 dprintk("Set MAC Reg C+CR Offset 0x82h = 0x01h\n");
2630                 RTL_W8(0x82, 0x01);
2631                 dprintk("Set PHY Reg 0x0bh = 0x00h\n");
2632                 rtl_writephy(tp, 0x0b, 0x0000); //w 0x0b 15 0 0
2633         }
2634
2635         rtl8169_phy_reset(dev, tp);
2636
2637         /*
2638          * rtl8169_set_speed_xmii takes good care of the Fast Ethernet
2639          * only 8101. Don't panic.
2640          */
2641         rtl8169_set_speed(dev, AUTONEG_ENABLE, SPEED_1000, DUPLEX_FULL);
2642
2643         if (RTL_R8(PHYstatus) & TBI_Enable)
2644                 netif_info(tp, link, dev, "TBI auto-negotiating\n");
2645 }
2646
2647 static void rtl_rar_set(struct rtl8169_private *tp, u8 *addr)
2648 {
2649         void __iomem *ioaddr = tp->mmio_addr;
2650         u32 high;
2651         u32 low;
2652
2653         low  = addr[0] | (addr[1] << 8) | (addr[2] << 16) | (addr[3] << 24);
2654         high = addr[4] | (addr[5] << 8);
2655
2656         spin_lock_irq(&tp->lock);
2657
2658         RTL_W8(Cfg9346, Cfg9346_Unlock);
2659
2660         RTL_W32(MAC4, high);
2661         RTL_R32(MAC4);
2662
2663         RTL_W32(MAC0, low);
2664         RTL_R32(MAC0);
2665
2666         RTL_W8(Cfg9346, Cfg9346_Lock);
2667
2668         spin_unlock_irq(&tp->lock);
2669 }
2670
2671 static int rtl_set_mac_address(struct net_device *dev, void *p)
2672 {
2673         struct rtl8169_private *tp = netdev_priv(dev);
2674         struct sockaddr *addr = p;
2675
2676         if (!is_valid_ether_addr(addr->sa_data))
2677                 return -EADDRNOTAVAIL;
2678
2679         memcpy(dev->dev_addr, addr->sa_data, dev->addr_len);
2680
2681         rtl_rar_set(tp, dev->dev_addr);
2682
2683         return 0;
2684 }
2685
2686 static int rtl8169_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
2687 {
2688         struct rtl8169_private *tp = netdev_priv(dev);
2689         struct mii_ioctl_data *data = if_mii(ifr);
2690
2691         return netif_running(dev) ? tp->do_ioctl(tp, data, cmd) : -ENODEV;
2692 }
2693
2694 static int rtl_xmii_ioctl(struct rtl8169_private *tp, struct mii_ioctl_data *data, int cmd)
2695 {
2696         switch (cmd) {
2697         case SIOCGMIIPHY:
2698                 data->phy_id = 32; /* Internal PHY */
2699                 return 0;
2700
2701         case SIOCGMIIREG:
2702                 data->val_out = rtl_readphy(tp, data->reg_num & 0x1f);
2703                 return 0;
2704
2705         case SIOCSMIIREG:
2706                 rtl_writephy(tp, data->reg_num & 0x1f, data->val_in);
2707                 return 0;
2708         }
2709         return -EOPNOTSUPP;
2710 }
2711
2712 static int rtl_tbi_ioctl(struct rtl8169_private *tp, struct mii_ioctl_data *data, int cmd)
2713 {
2714         return -EOPNOTSUPP;
2715 }
2716
2717 static const struct rtl_cfg_info {
2718         void (*hw_start)(struct net_device *);
2719         unsigned int region;
2720         unsigned int align;
2721         u16 intr_event;
2722         u16 napi_event;
2723         unsigned features;
2724         u8 default_ver;
2725 } rtl_cfg_infos [] = {
2726         [RTL_CFG_0] = {
2727                 .hw_start       = rtl_hw_start_8169,
2728                 .region         = 1,
2729                 .align          = 0,
2730                 .intr_event     = SYSErr | LinkChg | RxOverflow |
2731                                   RxFIFOOver | TxErr | TxOK | RxOK | RxErr,
2732                 .napi_event     = RxFIFOOver | TxErr | TxOK | RxOK | RxOverflow,
2733                 .features       = RTL_FEATURE_GMII,
2734                 .default_ver    = RTL_GIGA_MAC_VER_01,
2735         },
2736         [RTL_CFG_1] = {
2737                 .hw_start       = rtl_hw_start_8168,
2738                 .region         = 2,
2739                 .align          = 8,
2740                 .intr_event     = SYSErr | LinkChg | RxOverflow |
2741                                   TxErr | TxOK | RxOK | RxErr,
2742                 .napi_event     = TxErr | TxOK | RxOK | RxOverflow,
2743                 .features       = RTL_FEATURE_GMII | RTL_FEATURE_MSI,
2744                 .default_ver    = RTL_GIGA_MAC_VER_11,
2745         },
2746         [RTL_CFG_2] = {
2747                 .hw_start       = rtl_hw_start_8101,
2748                 .region         = 2,
2749                 .align          = 8,
2750                 .intr_event     = SYSErr | LinkChg | RxOverflow | PCSTimeout |
2751                                   RxFIFOOver | TxErr | TxOK | RxOK | RxErr,
2752                 .napi_event     = RxFIFOOver | TxErr | TxOK | RxOK | RxOverflow,
2753                 .features       = RTL_FEATURE_MSI,
2754                 .default_ver    = RTL_GIGA_MAC_VER_13,
2755         }
2756 };
2757
2758 /* Cfg9346_Unlock assumed. */
2759 static unsigned rtl_try_msi(struct pci_dev *pdev, void __iomem *ioaddr,
2760                             const struct rtl_cfg_info *cfg)
2761 {
2762         unsigned msi = 0;
2763         u8 cfg2;
2764
2765         cfg2 = RTL_R8(Config2) & ~MSIEnable;
2766         if (cfg->features & RTL_FEATURE_MSI) {
2767                 if (pci_enable_msi(pdev)) {
2768                         dev_info(&pdev->dev, "no MSI. Back to INTx.\n");
2769                 } else {
2770                         cfg2 |= MSIEnable;
2771                         msi = RTL_FEATURE_MSI;
2772                 }
2773         }
2774         RTL_W8(Config2, cfg2);
2775         return msi;
2776 }
2777
2778 static void rtl_disable_msi(struct pci_dev *pdev, struct rtl8169_private *tp)
2779 {
2780         if (tp->features & RTL_FEATURE_MSI) {
2781                 pci_disable_msi(pdev);
2782                 tp->features &= ~RTL_FEATURE_MSI;
2783         }
2784 }
2785
2786 static const struct net_device_ops rtl8169_netdev_ops = {
2787         .ndo_open               = rtl8169_open,
2788         .ndo_stop               = rtl8169_close,
2789         .ndo_get_stats          = rtl8169_get_stats,
2790         .ndo_start_xmit         = rtl8169_start_xmit,
2791         .ndo_tx_timeout         = rtl8169_tx_timeout,
2792         .ndo_validate_addr      = eth_validate_addr,
2793         .ndo_change_mtu         = rtl8169_change_mtu,
2794         .ndo_set_mac_address    = rtl_set_mac_address,
2795         .ndo_do_ioctl           = rtl8169_ioctl,
2796         .ndo_set_multicast_list = rtl_set_rx_mode,
2797 #ifdef CONFIG_R8169_VLAN
2798         .ndo_vlan_rx_register   = rtl8169_vlan_rx_register,
2799 #endif
2800 #ifdef CONFIG_NET_POLL_CONTROLLER
2801         .ndo_poll_controller    = rtl8169_netpoll,
2802 #endif
2803
2804 };
2805
2806 static void __devinit rtl_init_mdio_ops(struct rtl8169_private *tp)
2807 {
2808         struct mdio_ops *ops = &tp->mdio_ops;
2809
2810         switch (tp->mac_version) {
2811         case RTL_GIGA_MAC_VER_27:
2812                 ops->write      = r8168dp_1_mdio_write;
2813                 ops->read       = r8168dp_1_mdio_read;
2814                 break;
2815         case RTL_GIGA_MAC_VER_28:
2816                 ops->write      = r8168dp_2_mdio_write;
2817                 ops->read       = r8168dp_2_mdio_read;
2818                 break;
2819         default:
2820                 ops->write      = r8169_mdio_write;
2821                 ops->read       = r8169_mdio_read;
2822                 break;
2823         }
2824 }
2825
2826 static void r810x_phy_power_down(struct rtl8169_private *tp)
2827 {
2828         rtl_writephy(tp, 0x1f, 0x0000);
2829         rtl_writephy(tp, MII_BMCR, BMCR_PDOWN);
2830 }
2831
2832 static void r810x_phy_power_up(struct rtl8169_private *tp)
2833 {
2834         rtl_writephy(tp, 0x1f, 0x0000);
2835         rtl_writephy(tp, MII_BMCR, BMCR_ANENABLE);
2836 }
2837
2838 static void r810x_pll_power_down(struct rtl8169_private *tp)
2839 {
2840         if (__rtl8169_get_wol(tp) & WAKE_ANY) {
2841                 rtl_writephy(tp, 0x1f, 0x0000);
2842                 rtl_writephy(tp, MII_BMCR, 0x0000);
2843                 return;
2844         }
2845
2846         r810x_phy_power_down(tp);
2847 }
2848
2849 static void r810x_pll_power_up(struct rtl8169_private *tp)
2850 {
2851         r810x_phy_power_up(tp);
2852 }
2853
2854 static void r8168_phy_power_up(struct rtl8169_private *tp)
2855 {
2856         rtl_writephy(tp, 0x1f, 0x0000);
2857         rtl_writephy(tp, 0x0e, 0x0000);
2858         rtl_writephy(tp, MII_BMCR, BMCR_ANENABLE);
2859 }
2860
2861 static void r8168_phy_power_down(struct rtl8169_private *tp)
2862 {
2863         rtl_writephy(tp, 0x1f, 0x0000);
2864         rtl_writephy(tp, 0x0e, 0x0200);
2865         rtl_writephy(tp, MII_BMCR, BMCR_PDOWN);
2866 }
2867
2868 static void r8168_pll_power_down(struct rtl8169_private *tp)
2869 {
2870         void __iomem *ioaddr = tp->mmio_addr;
2871
2872         if (((tp->mac_version == RTL_GIGA_MAC_VER_27) ||
2873              (tp->mac_version == RTL_GIGA_MAC_VER_28)) &&
2874             (ocp_read(tp, 0x0f, 0x0010) & 0x00008000)) {
2875                 return;
2876         }
2877
2878         if (((tp->mac_version == RTL_GIGA_MAC_VER_23) ||
2879              (tp->mac_version == RTL_GIGA_MAC_VER_24)) &&
2880             (RTL_R16(CPlusCmd) & ASF)) {
2881                 return;
2882         }
2883
2884         if (__rtl8169_get_wol(tp) & WAKE_ANY) {
2885                 rtl_writephy(tp, 0x1f, 0x0000);
2886                 rtl_writephy(tp, MII_BMCR, 0x0000);
2887
2888                 RTL_W32(RxConfig, RTL_R32(RxConfig) |
2889                         AcceptBroadcast | AcceptMulticast | AcceptMyPhys);
2890                 return;
2891         }
2892
2893         r8168_phy_power_down(tp);
2894
2895         switch (tp->mac_version) {
2896         case RTL_GIGA_MAC_VER_25:
2897         case RTL_GIGA_MAC_VER_26:
2898         case RTL_GIGA_MAC_VER_27:
2899         case RTL_GIGA_MAC_VER_28:
2900                 RTL_W8(PMCH, RTL_R8(PMCH) & ~0x80);
2901                 break;
2902         }
2903 }
2904
2905 static void r8168_pll_power_up(struct rtl8169_private *tp)
2906 {
2907         void __iomem *ioaddr = tp->mmio_addr;
2908
2909         if (((tp->mac_version == RTL_GIGA_MAC_VER_27) ||
2910              (tp->mac_version == RTL_GIGA_MAC_VER_28)) &&
2911             (ocp_read(tp, 0x0f, 0x0010) & 0x00008000)) {
2912                 return;
2913         }
2914
2915         switch (tp->mac_version) {
2916         case RTL_GIGA_MAC_VER_25:
2917         case RTL_GIGA_MAC_VER_26:
2918         case RTL_GIGA_MAC_VER_27:
2919         case RTL_GIGA_MAC_VER_28:
2920                 RTL_W8(PMCH, RTL_R8(PMCH) | 0x80);
2921                 break;
2922         }
2923
2924         r8168_phy_power_up(tp);
2925 }
2926
2927 static void rtl_pll_power_op(struct rtl8169_private *tp,
2928                              void (*op)(struct rtl8169_private *))
2929 {
2930         if (op)
2931                 op(tp);
2932 }
2933
2934 static void rtl_pll_power_down(struct rtl8169_private *tp)
2935 {
2936         rtl_pll_power_op(tp, tp->pll_power_ops.down);
2937 }
2938
2939 static void rtl_pll_power_up(struct rtl8169_private *tp)
2940 {
2941         rtl_pll_power_op(tp, tp->pll_power_ops.up);
2942 }
2943
2944 static void __devinit rtl_init_pll_power_ops(struct rtl8169_private *tp)
2945 {
2946         struct pll_power_ops *ops = &tp->pll_power_ops;
2947
2948         switch (tp->mac_version) {
2949         case RTL_GIGA_MAC_VER_07:
2950         case RTL_GIGA_MAC_VER_08:
2951         case RTL_GIGA_MAC_VER_09:
2952         case RTL_GIGA_MAC_VER_10:
2953         case RTL_GIGA_MAC_VER_16:
2954                 ops->down       = r810x_pll_power_down;
2955                 ops->up         = r810x_pll_power_up;
2956                 break;
2957
2958         case RTL_GIGA_MAC_VER_11:
2959         case RTL_GIGA_MAC_VER_12:
2960         case RTL_GIGA_MAC_VER_17:
2961         case RTL_GIGA_MAC_VER_18:
2962         case RTL_GIGA_MAC_VER_19:
2963         case RTL_GIGA_MAC_VER_20:
2964         case RTL_GIGA_MAC_VER_21:
2965         case RTL_GIGA_MAC_VER_22:
2966         case RTL_GIGA_MAC_VER_23:
2967         case RTL_GIGA_MAC_VER_24:
2968         case RTL_GIGA_MAC_VER_25:
2969         case RTL_GIGA_MAC_VER_26:
2970         case RTL_GIGA_MAC_VER_27:
2971         case RTL_GIGA_MAC_VER_28:
2972                 ops->down       = r8168_pll_power_down;
2973                 ops->up         = r8168_pll_power_up;
2974                 break;
2975
2976         default:
2977                 ops->down       = NULL;
2978                 ops->up         = NULL;
2979                 break;
2980         }
2981 }
2982
2983 static int __devinit
2984 rtl8169_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
2985 {
2986         const struct rtl_cfg_info *cfg = rtl_cfg_infos + ent->driver_data;
2987         const unsigned int region = cfg->region;
2988         struct rtl8169_private *tp;
2989         struct mii_if_info *mii;
2990         struct net_device *dev;
2991         void __iomem *ioaddr;
2992         unsigned int i;
2993         int rc;
2994
2995         if (netif_msg_drv(&debug)) {
2996                 printk(KERN_INFO "%s Gigabit Ethernet driver %s loaded\n",
2997                        MODULENAME, RTL8169_VERSION);
2998         }
2999
3000         dev = alloc_etherdev(sizeof (*tp));
3001         if (!dev) {
3002                 if (netif_msg_drv(&debug))
3003                         dev_err(&pdev->dev, "unable to alloc new ethernet\n");
3004                 rc = -ENOMEM;
3005                 goto out;
3006         }
3007
3008         SET_NETDEV_DEV(dev, &pdev->dev);
3009         dev->netdev_ops = &rtl8169_netdev_ops;
3010         tp = netdev_priv(dev);
3011         tp->dev = dev;
3012         tp->pci_dev = pdev;
3013         tp->msg_enable = netif_msg_init(debug.msg_enable, R8169_MSG_DEFAULT);
3014
3015         mii = &tp->mii;
3016         mii->dev = dev;
3017         mii->mdio_read = rtl_mdio_read;
3018         mii->mdio_write = rtl_mdio_write;
3019         mii->phy_id_mask = 0x1f;
3020         mii->reg_num_mask = 0x1f;
3021         mii->supports_gmii = !!(cfg->features & RTL_FEATURE_GMII);
3022
3023         /* enable device (incl. PCI PM wakeup and hotplug setup) */
3024         rc = pci_enable_device(pdev);
3025         if (rc < 0) {
3026                 netif_err(tp, probe, dev, "enable failure\n");
3027                 goto err_out_free_dev_1;
3028         }
3029
3030         if (pci_set_mwi(pdev) < 0)
3031                 netif_info(tp, probe, dev, "Mem-Wr-Inval unavailable\n");
3032
3033         /* make sure PCI base addr 1 is MMIO */
3034         if (!(pci_resource_flags(pdev, region) & IORESOURCE_MEM)) {
3035                 netif_err(tp, probe, dev,
3036                           "region #%d not an MMIO resource, aborting\n",
3037                           region);
3038                 rc = -ENODEV;
3039                 goto err_out_mwi_2;
3040         }
3041
3042         /* check for weird/broken PCI region reporting */
3043         if (pci_resource_len(pdev, region) < R8169_REGS_SIZE) {
3044                 netif_err(tp, probe, dev,
3045                           "Invalid PCI region size(s), aborting\n");
3046                 rc = -ENODEV;
3047                 goto err_out_mwi_2;
3048         }
3049
3050         rc = pci_request_regions(pdev, MODULENAME);
3051         if (rc < 0) {
3052                 netif_err(tp, probe, dev, "could not request regions\n");
3053                 goto err_out_mwi_2;
3054         }
3055
3056         tp->cp_cmd = RxChkSum;
3057
3058         if ((sizeof(dma_addr_t) > 4) &&
3059             !pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) && use_dac) {
3060                 tp->cp_cmd |= PCIDAC;
3061                 dev->features |= NETIF_F_HIGHDMA;
3062         } else {
3063                 rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
3064                 if (rc < 0) {
3065                         netif_err(tp, probe, dev, "DMA configuration failed\n");
3066                         goto err_out_free_res_3;
3067                 }
3068         }
3069
3070         /* ioremap MMIO region */
3071         ioaddr = ioremap(pci_resource_start(pdev, region), R8169_REGS_SIZE);
3072         if (!ioaddr) {
3073                 netif_err(tp, probe, dev, "cannot remap MMIO, aborting\n");
3074                 rc = -EIO;
3075                 goto err_out_free_res_3;
3076         }
3077
3078         tp->pcie_cap = pci_find_capability(pdev, PCI_CAP_ID_EXP);
3079         if (!tp->pcie_cap)
3080                 netif_info(tp, probe, dev, "no PCI Express capability\n");
3081
3082         RTL_W16(IntrMask, 0x0000);
3083
3084         /* Soft reset the chip. */
3085         RTL_W8(ChipCmd, CmdReset);
3086
3087         /* Check that the chip has finished the reset. */
3088         for (i = 0; i < 100; i++) {
3089                 if ((RTL_R8(ChipCmd) & CmdReset) == 0)
3090                         break;
3091                 msleep_interruptible(1);
3092         }
3093
3094         RTL_W16(IntrStatus, 0xffff);
3095
3096         pci_set_master(pdev);
3097
3098         /* Identify chip attached to board */
3099         rtl8169_get_mac_version(tp, ioaddr);
3100
3101         rtl_init_mdio_ops(tp);
3102         rtl_init_pll_power_ops(tp);
3103
3104         /* Use appropriate default if unknown */
3105         if (tp->mac_version == RTL_GIGA_MAC_NONE) {
3106                 netif_notice(tp, probe, dev,
3107                              "unknown MAC, using family default\n");
3108                 tp->mac_version = cfg->default_ver;
3109         }
3110
3111         rtl8169_print_mac_version(tp);
3112
3113         for (i = 0; i < ARRAY_SIZE(rtl_chip_info); i++) {
3114                 if (tp->mac_version == rtl_chip_info[i].mac_version)
3115                         break;
3116         }
3117         if (i == ARRAY_SIZE(rtl_chip_info)) {
3118                 dev_err(&pdev->dev,
3119                         "driver bug, MAC version not found in rtl_chip_info\n");
3120                 goto err_out_msi_4;
3121         }
3122         tp->chipset = i;
3123
3124         RTL_W8(Cfg9346, Cfg9346_Unlock);
3125         RTL_W8(Config1, RTL_R8(Config1) | PMEnable);
3126         RTL_W8(Config5, RTL_R8(Config5) & PMEStatus);
3127         if ((RTL_R8(Config3) & (LinkUp | MagicPacket)) != 0)
3128                 tp->features |= RTL_FEATURE_WOL;
3129         if ((RTL_R8(Config5) & (UWF | BWF | MWF)) != 0)
3130                 tp->features |= RTL_FEATURE_WOL;
3131         tp->features |= rtl_try_msi(pdev, ioaddr, cfg);
3132         RTL_W8(Cfg9346, Cfg9346_Lock);
3133
3134         if ((tp->mac_version <= RTL_GIGA_MAC_VER_06) &&
3135             (RTL_R8(PHYstatus) & TBI_Enable)) {
3136                 tp->set_speed = rtl8169_set_speed_tbi;
3137                 tp->get_settings = rtl8169_gset_tbi;
3138                 tp->phy_reset_enable = rtl8169_tbi_reset_enable;
3139                 tp->phy_reset_pending = rtl8169_tbi_reset_pending;
3140                 tp->link_ok = rtl8169_tbi_link_ok;
3141                 tp->do_ioctl = rtl_tbi_ioctl;
3142
3143                 tp->phy_1000_ctrl_reg = ADVERTISE_1000FULL; /* Implied by TBI */
3144         } else {
3145                 tp->set_speed = rtl8169_set_speed_xmii;
3146                 tp->get_settings = rtl8169_gset_xmii;
3147                 tp->phy_reset_enable = rtl8169_xmii_reset_enable;
3148                 tp->phy_reset_pending = rtl8169_xmii_reset_pending;
3149                 tp->link_ok = rtl8169_xmii_link_ok;
3150                 tp->do_ioctl = rtl_xmii_ioctl;
3151         }
3152
3153         spin_lock_init(&tp->lock);
3154
3155         tp->mmio_addr = ioaddr;
3156
3157         /* Get MAC address */
3158         for (i = 0; i < MAC_ADDR_LEN; i++)
3159                 dev->dev_addr[i] = RTL_R8(MAC0 + i);
3160         memcpy(dev->perm_addr, dev->dev_addr, dev->addr_len);
3161
3162         SET_ETHTOOL_OPS(dev, &rtl8169_ethtool_ops);
3163         dev->watchdog_timeo = RTL8169_TX_TIMEOUT;
3164         dev->irq = pdev->irq;
3165         dev->base_addr = (unsigned long) ioaddr;
3166
3167         netif_napi_add(dev, &tp->napi, rtl8169_poll, R8169_NAPI_WEIGHT);
3168
3169 #ifdef CONFIG_R8169_VLAN
3170         dev->features |= NETIF_F_HW_VLAN_TX | NETIF_F_HW_VLAN_RX;
3171 #endif
3172         dev->features |= NETIF_F_GRO;
3173
3174         tp->intr_mask = 0xffff;
3175         tp->hw_start = cfg->hw_start;
3176         tp->intr_event = cfg->intr_event;
3177         tp->napi_event = cfg->napi_event;
3178
3179         init_timer(&tp->timer);
3180         tp->timer.data = (unsigned long) dev;
3181         tp->timer.function = rtl8169_phy_timer;
3182
3183         rc = register_netdev(dev);
3184         if (rc < 0)
3185                 goto err_out_msi_4;
3186
3187         pci_set_drvdata(pdev, dev);
3188
3189         netif_info(tp, probe, dev, "%s at 0x%lx, %pM, XID %08x IRQ %d\n",
3190                    rtl_chip_info[tp->chipset].name,
3191                    dev->base_addr, dev->dev_addr,
3192                    (u32)(RTL_R32(TxConfig) & 0x9cf0f8ff), dev->irq);
3193
3194         if ((tp->mac_version == RTL_GIGA_MAC_VER_27) ||
3195             (tp->mac_version == RTL_GIGA_MAC_VER_28)) {
3196                 rtl8168_driver_start(tp);
3197         }
3198
3199         device_set_wakeup_enable(&pdev->dev, tp->features & RTL_FEATURE_WOL);
3200
3201         if (pci_dev_run_wake(pdev))
3202                 pm_runtime_put_noidle(&pdev->dev);
3203
3204         netif_carrier_off(dev);
3205
3206 out:
3207         return rc;
3208
3209 err_out_msi_4:
3210         rtl_disable_msi(pdev, tp);
3211         iounmap(ioaddr);
3212 err_out_free_res_3:
3213         pci_release_regions(pdev);
3214 err_out_mwi_2:
3215         pci_clear_mwi(pdev);
3216         pci_disable_device(pdev);
3217 err_out_free_dev_1:
3218         free_netdev(dev);
3219         goto out;
3220 }
3221
3222 static void __devexit rtl8169_remove_one(struct pci_dev *pdev)
3223 {
3224         struct net_device *dev = pci_get_drvdata(pdev);
3225         struct rtl8169_private *tp = netdev_priv(dev);
3226
3227         if ((tp->mac_version == RTL_GIGA_MAC_VER_27) ||
3228             (tp->mac_version == RTL_GIGA_MAC_VER_28)) {
3229                 rtl8168_driver_stop(tp);
3230         }
3231
3232         cancel_delayed_work_sync(&tp->task);
3233
3234         rtl_release_firmware(tp);
3235
3236         unregister_netdev(dev);
3237
3238         if (pci_dev_run_wake(pdev))
3239                 pm_runtime_get_noresume(&pdev->dev);
3240
3241         /* restore original MAC address */
3242         rtl_rar_set(tp, dev->perm_addr);
3243
3244         rtl_disable_msi(pdev, tp);
3245         rtl8169_release_board(pdev, dev, tp->mmio_addr);
3246         pci_set_drvdata(pdev, NULL);
3247 }
3248
3249 static int rtl8169_open(struct net_device *dev)
3250 {
3251         struct rtl8169_private *tp = netdev_priv(dev);
3252         void __iomem *ioaddr = tp->mmio_addr;
3253         struct pci_dev *pdev = tp->pci_dev;
3254         int retval = -ENOMEM;
3255
3256         pm_runtime_get_sync(&pdev->dev);
3257
3258         /*
3259          * Rx and Tx desscriptors needs 256 bytes alignment.
3260          * dma_alloc_coherent provides more.
3261          */
3262         tp->TxDescArray = dma_alloc_coherent(&pdev->dev, R8169_TX_RING_BYTES,
3263                                              &tp->TxPhyAddr, GFP_KERNEL);
3264         if (!tp->TxDescArray)
3265                 goto err_pm_runtime_put;
3266
3267         tp->RxDescArray = dma_alloc_coherent(&pdev->dev, R8169_RX_RING_BYTES,
3268                                              &tp->RxPhyAddr, GFP_KERNEL);
3269         if (!tp->RxDescArray)
3270                 goto err_free_tx_0;
3271
3272         retval = rtl8169_init_ring(dev);
3273         if (retval < 0)
3274                 goto err_free_rx_1;
3275
3276         INIT_DELAYED_WORK(&tp->task, NULL);
3277
3278         smp_mb();
3279
3280         retval = request_irq(dev->irq, rtl8169_interrupt,
3281                              (tp->features & RTL_FEATURE_MSI) ? 0 : IRQF_SHARED,
3282                              dev->name, dev);
3283         if (retval < 0)
3284                 goto err_release_ring_2;
3285
3286         napi_enable(&tp->napi);
3287
3288         rtl8169_init_phy(dev, tp);
3289
3290         /*
3291          * Pretend we are using VLANs; This bypasses a nasty bug where
3292          * Interrupts stop flowing on high load on 8110SCd controllers.
3293          */
3294         if (tp->mac_version == RTL_GIGA_MAC_VER_05)
3295                 RTL_W16(CPlusCmd, RTL_R16(CPlusCmd) | RxVlan);
3296
3297         rtl_pll_power_up(tp);
3298
3299         rtl_hw_start(dev);
3300
3301         rtl8169_request_timer(dev);
3302
3303         tp->saved_wolopts = 0;
3304         pm_runtime_put_noidle(&pdev->dev);
3305
3306         rtl8169_check_link_status(dev, tp, ioaddr);
3307 out:
3308         return retval;
3309
3310 err_release_ring_2:
3311         rtl8169_rx_clear(tp);
3312 err_free_rx_1:
3313         dma_free_coherent(&pdev->dev, R8169_RX_RING_BYTES, tp->RxDescArray,
3314                           tp->RxPhyAddr);
3315         tp->RxDescArray = NULL;
3316 err_free_tx_0:
3317         dma_free_coherent(&pdev->dev, R8169_TX_RING_BYTES, tp->TxDescArray,
3318                           tp->TxPhyAddr);
3319         tp->TxDescArray = NULL;
3320 err_pm_runtime_put:
3321         pm_runtime_put_noidle(&pdev->dev);
3322         goto out;
3323 }
3324
3325 static void rtl8169_hw_reset(struct rtl8169_private *tp)
3326 {
3327         void __iomem *ioaddr = tp->mmio_addr;
3328
3329         /* Disable interrupts */
3330         rtl8169_irq_mask_and_ack(ioaddr);
3331
3332         if (tp->mac_version == RTL_GIGA_MAC_VER_27 ||
3333             tp->mac_version == RTL_GIGA_MAC_VER_28) {
3334                 while (RTL_R8(TxPoll) & NPQ)
3335                         udelay(20);
3336
3337         }
3338
3339         /* Reset the chipset */
3340         RTL_W8(ChipCmd, CmdReset);
3341
3342         /* PCI commit */
3343         RTL_R8(ChipCmd);
3344 }
3345
3346 static void rtl_set_rx_tx_config_registers(struct rtl8169_private *tp)
3347 {
3348         void __iomem *ioaddr = tp->mmio_addr;
3349         u32 cfg = rtl8169_rx_config;
3350
3351         cfg |= (RTL_R32(RxConfig) & rtl_chip_info[tp->chipset].RxConfigMask);
3352         RTL_W32(RxConfig, cfg);
3353
3354         /* Set DMA burst size and Interframe Gap Time */
3355         RTL_W32(TxConfig, (TX_DMA_BURST << TxDMAShift) |
3356                 (InterFrameGap << TxInterFrameGapShift));
3357 }
3358
3359 static void rtl_hw_start(struct net_device *dev)
3360 {
3361         struct rtl8169_private *tp = netdev_priv(dev);
3362         void __iomem *ioaddr = tp->mmio_addr;
3363         unsigned int i;
3364
3365         /* Soft reset the chip. */
3366         RTL_W8(ChipCmd, CmdReset);
3367
3368         /* Check that the chip has finished the reset. */
3369         for (i = 0; i < 100; i++) {
3370                 if ((RTL_R8(ChipCmd) & CmdReset) == 0)
3371                         break;
3372                 msleep_interruptible(1);
3373         }
3374
3375         tp->hw_start(dev);
3376
3377         netif_start_queue(dev);
3378 }
3379
3380
3381 static void rtl_set_rx_tx_desc_registers(struct rtl8169_private *tp,
3382                                          void __iomem *ioaddr)
3383 {
3384         /*
3385          * Magic spell: some iop3xx ARM board needs the TxDescAddrHigh
3386          * register to be written before TxDescAddrLow to work.
3387          * Switching from MMIO to I/O access fixes the issue as well.
3388          */
3389         RTL_W32(TxDescStartAddrHigh, ((u64) tp->TxPhyAddr) >> 32);
3390         RTL_W32(TxDescStartAddrLow, ((u64) tp->TxPhyAddr) & DMA_BIT_MASK(32));
3391         RTL_W32(RxDescAddrHigh, ((u64) tp->RxPhyAddr) >> 32);
3392         RTL_W32(RxDescAddrLow, ((u64) tp->RxPhyAddr) & DMA_BIT_MASK(32));
3393 }
3394
3395 static u16 rtl_rw_cpluscmd(void __iomem *ioaddr)
3396 {
3397         u16 cmd;
3398
3399         cmd = RTL_R16(CPlusCmd);
3400         RTL_W16(CPlusCmd, cmd);
3401         return cmd;
3402 }
3403
3404 static void rtl_set_rx_max_size(void __iomem *ioaddr, unsigned int rx_buf_sz)
3405 {
3406         /* Low hurts. Let's disable the filtering. */
3407         RTL_W16(RxMaxSize, rx_buf_sz + 1);
3408 }
3409
3410 static void rtl8169_set_magic_reg(void __iomem *ioaddr, unsigned mac_version)
3411 {
3412         static const struct {
3413                 u32 mac_version;
3414                 u32 clk;
3415                 u32 val;
3416         } cfg2_info [] = {
3417                 { RTL_GIGA_MAC_VER_05, PCI_Clock_33MHz, 0x000fff00 }, // 8110SCd
3418                 { RTL_GIGA_MAC_VER_05, PCI_Clock_66MHz, 0x000fffff },
3419                 { RTL_GIGA_MAC_VER_06, PCI_Clock_33MHz, 0x00ffff00 }, // 8110SCe
3420                 { RTL_GIGA_MAC_VER_06, PCI_Clock_66MHz, 0x00ffffff }
3421         }, *p = cfg2_info;
3422         unsigned int i;
3423         u32 clk;
3424
3425         clk = RTL_R8(Config2) & PCI_Clock_66MHz;
3426         for (i = 0; i < ARRAY_SIZE(cfg2_info); i++, p++) {
3427                 if ((p->mac_version == mac_version) && (p->clk == clk)) {
3428                         RTL_W32(0x7c, p->val);
3429                         break;
3430                 }
3431         }
3432 }
3433
3434 static void rtl_hw_start_8169(struct net_device *dev)
3435 {
3436         struct rtl8169_private *tp = netdev_priv(dev);
3437         void __iomem *ioaddr = tp->mmio_addr;
3438         struct pci_dev *pdev = tp->pci_dev;
3439
3440         if (tp->mac_version == RTL_GIGA_MAC_VER_05) {
3441                 RTL_W16(CPlusCmd, RTL_R16(CPlusCmd) | PCIMulRW);
3442                 pci_write_config_byte(pdev, PCI_CACHE_LINE_SIZE, 0x08);
3443         }
3444
3445         RTL_W8(Cfg9346, Cfg9346_Unlock);
3446         if ((tp->mac_version == RTL_GIGA_MAC_VER_01) ||
3447             (tp->mac_version == RTL_GIGA_MAC_VER_02) ||
3448             (tp->mac_version == RTL_GIGA_MAC_VER_03) ||
3449             (tp->mac_version == RTL_GIGA_MAC_VER_04))
3450                 RTL_W8(ChipCmd, CmdTxEnb | CmdRxEnb);
3451
3452         RTL_W8(EarlyTxThres, NoEarlyTx);
3453
3454         rtl_set_rx_max_size(ioaddr, rx_buf_sz);
3455
3456         if ((tp->mac_version == RTL_GIGA_MAC_VER_01) ||
3457             (tp->mac_version == RTL_GIGA_MAC_VER_02) ||
3458             (tp->mac_version == RTL_GIGA_MAC_VER_03) ||
3459             (tp->mac_version == RTL_GIGA_MAC_VER_04))
3460                 rtl_set_rx_tx_config_registers(tp);
3461
3462         tp->cp_cmd |= rtl_rw_cpluscmd(ioaddr) | PCIMulRW;
3463
3464         if ((tp->mac_version == RTL_GIGA_MAC_VER_02) ||
3465             (tp->mac_version == RTL_GIGA_MAC_VER_03)) {
3466                 dprintk("Set MAC Reg C+CR Offset 0xE0. "
3467                         "Bit-3 and bit-14 MUST be 1\n");
3468                 tp->cp_cmd |= (1 << 14);
3469         }
3470
3471         RTL_W16(CPlusCmd, tp->cp_cmd);
3472
3473         rtl8169_set_magic_reg(ioaddr, tp->mac_version);
3474
3475         /*
3476          * Undocumented corner. Supposedly:
3477          * (TxTimer << 12) | (TxPackets << 8) | (RxTimer << 4) | RxPackets
3478          */
3479         RTL_W16(IntrMitigate, 0x0000);
3480
3481         rtl_set_rx_tx_desc_registers(tp, ioaddr);
3482
3483         if ((tp->mac_version != RTL_GIGA_MAC_VER_01) &&
3484             (tp->mac_version != RTL_GIGA_MAC_VER_02) &&
3485             (tp->mac_version != RTL_GIGA_MAC_VER_03) &&
3486             (tp->mac_version != RTL_GIGA_MAC_VER_04)) {
3487                 RTL_W8(ChipCmd, CmdTxEnb | CmdRxEnb);
3488                 rtl_set_rx_tx_config_registers(tp);
3489         }
3490
3491         RTL_W8(Cfg9346, Cfg9346_Lock);
3492
3493         /* Initially a 10 us delay. Turned it into a PCI commit. - FR */
3494         RTL_R8(IntrMask);
3495
3496         RTL_W32(RxMissed, 0);
3497
3498         rtl_set_rx_mode(dev);
3499
3500         /* no early-rx interrupts */
3501         RTL_W16(MultiIntr, RTL_R16(MultiIntr) & 0xF000);
3502
3503         /* Enable all known interrupts by setting the interrupt mask. */
3504         RTL_W16(IntrMask, tp->intr_event);
3505 }
3506
3507 static void rtl_tx_performance_tweak(struct pci_dev *pdev, u16 force)
3508 {
3509         struct net_device *dev = pci_get_drvdata(pdev);
3510         struct rtl8169_private *tp = netdev_priv(dev);
3511         int cap = tp->pcie_cap;
3512
3513         if (cap) {
3514                 u16 ctl;
3515
3516                 pci_read_config_word(pdev, cap + PCI_EXP_DEVCTL, &ctl);
3517                 ctl = (ctl & ~PCI_EXP_DEVCTL_READRQ) | force;
3518                 pci_write_config_word(pdev, cap + PCI_EXP_DEVCTL, ctl);
3519         }
3520 }
3521
3522 static void rtl_csi_access_enable(void __iomem *ioaddr, u32 bits)
3523 {
3524         u32 csi;
3525
3526         csi = rtl_csi_read(ioaddr, 0x070c) & 0x00ffffff;
3527         rtl_csi_write(ioaddr, 0x070c, csi | bits);
3528 }
3529
3530 static void rtl_csi_access_enable_1(void __iomem *ioaddr)
3531 {
3532         rtl_csi_access_enable(ioaddr, 0x17000000);
3533 }
3534
3535 static void rtl_csi_access_enable_2(void __iomem *ioaddr)
3536 {
3537         rtl_csi_access_enable(ioaddr, 0x27000000);
3538 }
3539
3540 struct ephy_info {
3541         unsigned int offset;
3542         u16 mask;
3543         u16 bits;
3544 };
3545
3546 static void rtl_ephy_init(void __iomem *ioaddr, const struct ephy_info *e, int len)
3547 {
3548         u16 w;
3549
3550         while (len-- > 0) {
3551                 w = (rtl_ephy_read(ioaddr, e->offset) & ~e->mask) | e->bits;
3552                 rtl_ephy_write(ioaddr, e->offset, w);
3553                 e++;
3554         }
3555 }
3556
3557 static void rtl_disable_clock_request(struct pci_dev *pdev)
3558 {
3559         struct net_device *dev = pci_get_drvdata(pdev);
3560         struct rtl8169_private *tp = netdev_priv(dev);
3561         int cap = tp->pcie_cap;
3562
3563         if (cap) {
3564                 u16 ctl;
3565
3566                 pci_read_config_word(pdev, cap + PCI_EXP_LNKCTL, &ctl);
3567                 ctl &= ~PCI_EXP_LNKCTL_CLKREQ_EN;
3568                 pci_write_config_word(pdev, cap + PCI_EXP_LNKCTL, ctl);
3569         }
3570 }
3571
3572 static void rtl_enable_clock_request(struct pci_dev *pdev)
3573 {
3574         struct net_device *dev = pci_get_drvdata(pdev);
3575         struct rtl8169_private *tp = netdev_priv(dev);
3576         int cap = tp->pcie_cap;
3577
3578         if (cap) {
3579                 u16 ctl;
3580
3581                 pci_read_config_word(pdev, cap + PCI_EXP_LNKCTL, &ctl);
3582                 ctl |= PCI_EXP_LNKCTL_CLKREQ_EN;
3583                 pci_write_config_word(pdev, cap + PCI_EXP_LNKCTL, ctl);
3584         }
3585 }
3586
3587 #define R8168_CPCMD_QUIRK_MASK (\
3588         EnableBist | \
3589         Mac_dbgo_oe | \
3590         Force_half_dup | \
3591         Force_rxflow_en | \
3592         Force_txflow_en | \
3593         Cxpl_dbg_sel | \
3594         ASF | \
3595         PktCntrDisable | \
3596         Mac_dbgo_sel)
3597
3598 static void rtl_hw_start_8168bb(void __iomem *ioaddr, struct pci_dev *pdev)
3599 {
3600         RTL_W8(Config3, RTL_R8(Config3) & ~Beacon_en);
3601
3602         RTL_W16(CPlusCmd, RTL_R16(CPlusCmd) & ~R8168_CPCMD_QUIRK_MASK);
3603
3604         rtl_tx_performance_tweak(pdev,
3605                 (0x5 << MAX_READ_REQUEST_SHIFT) | PCI_EXP_DEVCTL_NOSNOOP_EN);
3606 }
3607
3608 static void rtl_hw_start_8168bef(void __iomem *ioaddr, struct pci_dev *pdev)
3609 {
3610         rtl_hw_start_8168bb(ioaddr, pdev);
3611
3612         RTL_W8(MaxTxPacketSize, TxPacketMax);
3613
3614         RTL_W8(Config4, RTL_R8(Config4) & ~(1 << 0));
3615 }
3616
3617 static void __rtl_hw_start_8168cp(void __iomem *ioaddr, struct pci_dev *pdev)
3618 {
3619         RTL_W8(Config1, RTL_R8(Config1) | Speed_down);
3620
3621         RTL_W8(Config3, RTL_R8(Config3) & ~Beacon_en);
3622
3623         rtl_tx_performance_tweak(pdev, 0x5 << MAX_READ_REQUEST_SHIFT);
3624
3625         rtl_disable_clock_request(pdev);
3626
3627         RTL_W16(CPlusCmd, RTL_R16(CPlusCmd) & ~R8168_CPCMD_QUIRK_MASK);
3628 }
3629
3630 static void rtl_hw_start_8168cp_1(void __iomem *ioaddr, struct pci_dev *pdev)
3631 {
3632         static const struct ephy_info e_info_8168cp[] = {
3633                 { 0x01, 0,      0x0001 },
3634                 { 0x02, 0x0800, 0x1000 },
3635                 { 0x03, 0,      0x0042 },
3636                 { 0x06, 0x0080, 0x0000 },
3637                 { 0x07, 0,      0x2000 }
3638         };
3639
3640         rtl_csi_access_enable_2(ioaddr);
3641
3642         rtl_ephy_init(ioaddr, e_info_8168cp, ARRAY_SIZE(e_info_8168cp));
3643
3644         __rtl_hw_start_8168cp(ioaddr, pdev);
3645 }
3646
3647 static void rtl_hw_start_8168cp_2(void __iomem *ioaddr, struct pci_dev *pdev)
3648 {
3649         rtl_csi_access_enable_2(ioaddr);
3650
3651         RTL_W8(Config3, RTL_R8(Config3) & ~Beacon_en);
3652
3653         rtl_tx_performance_tweak(pdev, 0x5 << MAX_READ_REQUEST_SHIFT);
3654
3655         RTL_W16(CPlusCmd, RTL_R16(CPlusCmd) & ~R8168_CPCMD_QUIRK_MASK);
3656 }
3657
3658 static void rtl_hw_start_8168cp_3(void __iomem *ioaddr, struct pci_dev *pdev)
3659 {
3660         rtl_csi_access_enable_2(ioaddr);
3661
3662         RTL_W8(Config3, RTL_R8(Config3) & ~Beacon_en);
3663
3664         /* Magic. */
3665         RTL_W8(DBG_REG, 0x20);
3666
3667         RTL_W8(MaxTxPacketSize, TxPacketMax);
3668
3669         rtl_tx_performance_tweak(pdev, 0x5 << MAX_READ_REQUEST_SHIFT);
3670
3671         RTL_W16(CPlusCmd, RTL_R16(CPlusCmd) & ~R8168_CPCMD_QUIRK_MASK);
3672 }
3673
3674 static void rtl_hw_start_8168c_1(void __iomem *ioaddr, struct pci_dev *pdev)
3675 {
3676         static const struct ephy_info e_info_8168c_1[] = {
3677                 { 0x02, 0x0800, 0x1000 },
3678                 { 0x03, 0,      0x0002 },
3679                 { 0x06, 0x0080, 0x0000 }
3680         };
3681
3682         rtl_csi_access_enable_2(ioaddr);
3683
3684         RTL_W8(DBG_REG, 0x06 | FIX_NAK_1 | FIX_NAK_2);
3685
3686         rtl_ephy_init(ioaddr, e_info_8168c_1, ARRAY_SIZE(e_info_8168c_1));
3687
3688         __rtl_hw_start_8168cp(ioaddr, pdev);
3689 }
3690
3691 static void rtl_hw_start_8168c_2(void __iomem *ioaddr, struct pci_dev *pdev)
3692 {
3693         static const struct ephy_info e_info_8168c_2[] = {
3694                 { 0x01, 0,      0x0001 },
3695                 { 0x03, 0x0400, 0x0220 }
3696         };
3697
3698         rtl_csi_access_enable_2(ioaddr);
3699
3700         rtl_ephy_init(ioaddr, e_info_8168c_2, ARRAY_SIZE(e_info_8168c_2));
3701
3702         __rtl_hw_start_8168cp(ioaddr, pdev);
3703 }
3704
3705 static void rtl_hw_start_8168c_3(void __iomem *ioaddr, struct pci_dev *pdev)
3706 {
3707         rtl_hw_start_8168c_2(ioaddr, pdev);
3708 }
3709
3710 static void rtl_hw_start_8168c_4(void __iomem *ioaddr, struct pci_dev *pdev)
3711 {
3712         rtl_csi_access_enable_2(ioaddr);
3713
3714         __rtl_hw_start_8168cp(ioaddr, pdev);
3715 }
3716
3717 static void rtl_hw_start_8168d(void __iomem *ioaddr, struct pci_dev *pdev)
3718 {
3719         rtl_csi_access_enable_2(ioaddr);
3720
3721         rtl_disable_clock_request(pdev);
3722
3723         RTL_W8(MaxTxPacketSize, TxPacketMax);
3724
3725         rtl_tx_performance_tweak(pdev, 0x5 << MAX_READ_REQUEST_SHIFT);
3726
3727         RTL_W16(CPlusCmd, RTL_R16(CPlusCmd) & ~R8168_CPCMD_QUIRK_MASK);
3728 }
3729
3730 static void rtl_hw_start_8168d_4(void __iomem *ioaddr, struct pci_dev *pdev)
3731 {
3732         static const struct ephy_info e_info_8168d_4[] = {
3733                 { 0x0b, ~0,     0x48 },
3734                 { 0x19, 0x20,   0x50 },
3735                 { 0x0c, ~0,     0x20 }
3736         };
3737         int i;
3738
3739         rtl_csi_access_enable_1(ioaddr);
3740
3741         rtl_tx_performance_tweak(pdev, 0x5 << MAX_READ_REQUEST_SHIFT);
3742
3743         RTL_W8(MaxTxPacketSize, TxPacketMax);
3744
3745         for (i = 0; i < ARRAY_SIZE(e_info_8168d_4); i++) {
3746                 const struct ephy_info *e = e_info_8168d_4 + i;
3747                 u16 w;
3748
3749                 w = rtl_ephy_read(ioaddr, e->offset);
3750                 rtl_ephy_write(ioaddr, 0x03, (w & e->mask) | e->bits);
3751         }
3752
3753         rtl_enable_clock_request(pdev);
3754 }
3755
3756 static void rtl_hw_start_8168(struct net_device *dev)
3757 {
3758         struct rtl8169_private *tp = netdev_priv(dev);
3759         void __iomem *ioaddr = tp->mmio_addr;
3760         struct pci_dev *pdev = tp->pci_dev;
3761
3762         RTL_W8(Cfg9346, Cfg9346_Unlock);
3763
3764         RTL_W8(MaxTxPacketSize, TxPacketMax);
3765
3766         rtl_set_rx_max_size(ioaddr, rx_buf_sz);
3767
3768         tp->cp_cmd |= RTL_R16(CPlusCmd) | PktCntrDisable | INTT_1;
3769
3770         RTL_W16(CPlusCmd, tp->cp_cmd);
3771
3772         RTL_W16(IntrMitigate, 0x5151);
3773
3774         /* Work around for RxFIFO overflow. */
3775         if (tp->mac_version == RTL_GIGA_MAC_VER_11 ||
3776             tp->mac_version == RTL_GIGA_MAC_VER_22) {
3777                 tp->intr_event |= RxFIFOOver | PCSTimeout;
3778                 tp->intr_event &= ~RxOverflow;
3779         }
3780
3781         rtl_set_rx_tx_desc_registers(tp, ioaddr);
3782
3783         rtl_set_rx_mode(dev);
3784
3785         RTL_W32(TxConfig, (TX_DMA_BURST << TxDMAShift) |
3786                 (InterFrameGap << TxInterFrameGapShift));
3787
3788         RTL_R8(IntrMask);
3789
3790         switch (tp->mac_version) {
3791         case RTL_GIGA_MAC_VER_11:
3792                 rtl_hw_start_8168bb(ioaddr, pdev);
3793         break;
3794
3795         case RTL_GIGA_MAC_VER_12:
3796         case RTL_GIGA_MAC_VER_17:
3797                 rtl_hw_start_8168bef(ioaddr, pdev);
3798         break;
3799
3800         case RTL_GIGA_MAC_VER_18:
3801                 rtl_hw_start_8168cp_1(ioaddr, pdev);
3802         break;
3803
3804         case RTL_GIGA_MAC_VER_19:
3805                 rtl_hw_start_8168c_1(ioaddr, pdev);
3806         break;
3807
3808         case RTL_GIGA_MAC_VER_20:
3809                 rtl_hw_start_8168c_2(ioaddr, pdev);
3810         break;
3811
3812         case RTL_GIGA_MAC_VER_21:
3813                 rtl_hw_start_8168c_3(ioaddr, pdev);
3814         break;
3815
3816         case RTL_GIGA_MAC_VER_22:
3817                 rtl_hw_start_8168c_4(ioaddr, pdev);
3818         break;
3819
3820         case RTL_GIGA_MAC_VER_23:
3821                 rtl_hw_start_8168cp_2(ioaddr, pdev);
3822         break;
3823
3824         case RTL_GIGA_MAC_VER_24:
3825                 rtl_hw_start_8168cp_3(ioaddr, pdev);
3826         break;
3827
3828         case RTL_GIGA_MAC_VER_25:
3829         case RTL_GIGA_MAC_VER_26:
3830         case RTL_GIGA_MAC_VER_27:
3831                 rtl_hw_start_8168d(ioaddr, pdev);
3832         break;
3833
3834         case RTL_GIGA_MAC_VER_28:
3835                 rtl_hw_start_8168d_4(ioaddr, pdev);
3836         break;
3837
3838         default:
3839                 printk(KERN_ERR PFX "%s: unknown chipset (mac_version = %d).\n",
3840                         dev->name, tp->mac_version);
3841         break;
3842         }
3843
3844         RTL_W8(ChipCmd, CmdTxEnb | CmdRxEnb);
3845
3846         RTL_W8(Cfg9346, Cfg9346_Lock);
3847
3848         RTL_W16(MultiIntr, RTL_R16(MultiIntr) & 0xF000);
3849
3850         RTL_W16(IntrMask, tp->intr_event);
3851 }
3852
3853 #define R810X_CPCMD_QUIRK_MASK (\
3854         EnableBist | \
3855         Mac_dbgo_oe | \
3856         Force_half_dup | \
3857         Force_rxflow_en | \
3858         Force_txflow_en | \
3859         Cxpl_dbg_sel | \
3860         ASF | \
3861         PktCntrDisable | \
3862         Mac_dbgo_sel)
3863
3864 static void rtl_hw_start_8102e_1(void __iomem *ioaddr, struct pci_dev *pdev)
3865 {
3866         static const struct ephy_info e_info_8102e_1[] = {
3867                 { 0x01, 0, 0x6e65 },
3868                 { 0x02, 0, 0x091f },
3869                 { 0x03, 0, 0xc2f9 },
3870                 { 0x06, 0, 0xafb5 },
3871                 { 0x07, 0, 0x0e00 },
3872                 { 0x19, 0, 0xec80 },
3873                 { 0x01, 0, 0x2e65 },
3874                 { 0x01, 0, 0x6e65 }
3875         };
3876         u8 cfg1;
3877
3878         rtl_csi_access_enable_2(ioaddr);
3879
3880         RTL_W8(DBG_REG, FIX_NAK_1);
3881
3882         rtl_tx_performance_tweak(pdev, 0x5 << MAX_READ_REQUEST_SHIFT);
3883
3884         RTL_W8(Config1,
3885                LEDS1 | LEDS0 | Speed_down | MEMMAP | IOMAP | VPD | PMEnable);
3886         RTL_W8(Config3, RTL_R8(Config3) & ~Beacon_en);
3887
3888         cfg1 = RTL_R8(Config1);
3889         if ((cfg1 & LEDS0) && (cfg1 & LEDS1))
3890                 RTL_W8(Config1, cfg1 & ~LEDS0);
3891
3892         rtl_ephy_init(ioaddr, e_info_8102e_1, ARRAY_SIZE(e_info_8102e_1));
3893 }
3894
3895 static void rtl_hw_start_8102e_2(void __iomem *ioaddr, struct pci_dev *pdev)
3896 {
3897         rtl_csi_access_enable_2(ioaddr);
3898
3899         rtl_tx_performance_tweak(pdev, 0x5 << MAX_READ_REQUEST_SHIFT);
3900
3901         RTL_W8(Config1, MEMMAP | IOMAP | VPD | PMEnable);
3902         RTL_W8(Config3, RTL_R8(Config3) & ~Beacon_en);
3903 }
3904
3905 static void rtl_hw_start_8102e_3(void __iomem *ioaddr, struct pci_dev *pdev)
3906 {
3907         rtl_hw_start_8102e_2(ioaddr, pdev);
3908
3909         rtl_ephy_write(ioaddr, 0x03, 0xc2f9);
3910 }
3911
3912 static void rtl_hw_start_8101(struct net_device *dev)
3913 {
3914         struct rtl8169_private *tp = netdev_priv(dev);
3915         void __iomem *ioaddr = tp->mmio_addr;
3916         struct pci_dev *pdev = tp->pci_dev;
3917
3918         if ((tp->mac_version == RTL_GIGA_MAC_VER_13) ||
3919             (tp->mac_version == RTL_GIGA_MAC_VER_16)) {
3920                 int cap = tp->pcie_cap;
3921
3922                 if (cap) {
3923                         pci_write_config_word(pdev, cap + PCI_EXP_DEVCTL,
3924                                               PCI_EXP_DEVCTL_NOSNOOP_EN);
3925                 }
3926         }
3927
3928         RTL_W8(Cfg9346, Cfg9346_Unlock);
3929
3930         switch (tp->mac_version) {
3931         case RTL_GIGA_MAC_VER_07:
3932                 rtl_hw_start_8102e_1(ioaddr, pdev);
3933                 break;
3934
3935         case RTL_GIGA_MAC_VER_08:
3936                 rtl_hw_start_8102e_3(ioaddr, pdev);
3937                 break;
3938
3939         case RTL_GIGA_MAC_VER_09:
3940                 rtl_hw_start_8102e_2(ioaddr, pdev);
3941                 break;
3942         }
3943
3944         RTL_W8(Cfg9346, Cfg9346_Lock);
3945
3946         RTL_W8(MaxTxPacketSize, TxPacketMax);
3947
3948         rtl_set_rx_max_size(ioaddr, rx_buf_sz);
3949
3950         tp->cp_cmd &= ~R810X_CPCMD_QUIRK_MASK;
3951         RTL_W16(CPlusCmd, tp->cp_cmd);
3952
3953         RTL_W16(IntrMitigate, 0x0000);
3954
3955         rtl_set_rx_tx_desc_registers(tp, ioaddr);
3956
3957         RTL_W8(ChipCmd, CmdTxEnb | CmdRxEnb);
3958         rtl_set_rx_tx_config_registers(tp);
3959
3960         RTL_R8(IntrMask);
3961
3962         rtl_set_rx_mode(dev);
3963
3964         RTL_W16(MultiIntr, RTL_R16(MultiIntr) & 0xf000);
3965
3966         RTL_W16(IntrMask, tp->intr_event);
3967 }
3968
3969 static int rtl8169_change_mtu(struct net_device *dev, int new_mtu)
3970 {
3971         if (new_mtu < ETH_ZLEN || new_mtu > SafeMtu)
3972                 return -EINVAL;
3973
3974         dev->mtu = new_mtu;
3975         return 0;
3976 }
3977
3978 static inline void rtl8169_make_unusable_by_asic(struct RxDesc *desc)
3979 {
3980         desc->addr = cpu_to_le64(0x0badbadbadbadbadull);
3981         desc->opts1 &= ~cpu_to_le32(DescOwn | RsvdMask);
3982 }
3983
3984 static void rtl8169_free_rx_databuff(struct rtl8169_private *tp,
3985                                      void **data_buff, struct RxDesc *desc)
3986 {
3987         dma_unmap_single(&tp->pci_dev->dev, le64_to_cpu(desc->addr), rx_buf_sz,
3988                          DMA_FROM_DEVICE);
3989
3990         kfree(*data_buff);
3991         *data_buff = NULL;
3992         rtl8169_make_unusable_by_asic(desc);
3993 }
3994
3995 static inline void rtl8169_mark_to_asic(struct RxDesc *desc, u32 rx_buf_sz)
3996 {
3997         u32 eor = le32_to_cpu(desc->opts1) & RingEnd;
3998
3999         desc->opts1 = cpu_to_le32(DescOwn | eor | rx_buf_sz);
4000 }
4001
4002 static inline void rtl8169_map_to_asic(struct RxDesc *desc, dma_addr_t mapping,
4003                                        u32 rx_buf_sz)
4004 {
4005         desc->addr = cpu_to_le64(mapping);
4006         wmb();
4007         rtl8169_mark_to_asic(desc, rx_buf_sz);
4008 }
4009
4010 static inline void *rtl8169_align(void *data)
4011 {
4012         return (void *)ALIGN((long)data, 16);
4013 }
4014
4015 static struct sk_buff *rtl8169_alloc_rx_data(struct rtl8169_private *tp,
4016                                              struct RxDesc *desc)
4017 {
4018         void *data;
4019         dma_addr_t mapping;
4020         struct device *d = &tp->pci_dev->dev;
4021         struct net_device *dev = tp->dev;
4022         int node = dev->dev.parent ? dev_to_node(dev->dev.parent) : -1;
4023
4024         data = kmalloc_node(rx_buf_sz, GFP_KERNEL, node);
4025         if (!data)
4026                 return NULL;
4027
4028         if (rtl8169_align(data) != data) {
4029                 kfree(data);
4030                 data = kmalloc_node(rx_buf_sz + 15, GFP_KERNEL, node);
4031                 if (!data)
4032                         return NULL;
4033         }
4034
4035         mapping = dma_map_single(d, rtl8169_align(data), rx_buf_sz,
4036                                  DMA_FROM_DEVICE);
4037         if (unlikely(dma_mapping_error(d, mapping))) {
4038                 if (net_ratelimit())
4039                         netif_err(tp, drv, tp->dev, "Failed to map RX DMA!\n");
4040                 goto err_out;
4041         }
4042
4043         rtl8169_map_to_asic(desc, mapping, rx_buf_sz);
4044         return data;
4045
4046 err_out:
4047         kfree(data);
4048         return NULL;
4049 }
4050
4051 static void rtl8169_rx_clear(struct rtl8169_private *tp)
4052 {
4053         unsigned int i;
4054
4055         for (i = 0; i < NUM_RX_DESC; i++) {
4056                 if (tp->Rx_databuff[i]) {
4057                         rtl8169_free_rx_databuff(tp, tp->Rx_databuff + i,
4058                                             tp->RxDescArray + i);
4059                 }
4060         }
4061 }
4062
4063 static inline void rtl8169_mark_as_last_descriptor(struct RxDesc *desc)
4064 {
4065         desc->opts1 |= cpu_to_le32(RingEnd);
4066 }
4067
4068 static int rtl8169_rx_fill(struct rtl8169_private *tp)
4069 {
4070         unsigned int i;
4071
4072         for (i = 0; i < NUM_RX_DESC; i++) {
4073                 void *data;
4074
4075                 if (tp->Rx_databuff[i])
4076                         continue;
4077
4078                 data = rtl8169_alloc_rx_data(tp, tp->RxDescArray + i);
4079                 if (!data) {
4080                         rtl8169_make_unusable_by_asic(tp->RxDescArray + i);
4081                         goto err_out;
4082                 }
4083                 tp->Rx_databuff[i] = data;
4084         }
4085
4086         rtl8169_mark_as_last_descriptor(tp->RxDescArray + NUM_RX_DESC - 1);
4087         return 0;
4088
4089 err_out:
4090         rtl8169_rx_clear(tp);
4091         return -ENOMEM;
4092 }
4093
4094 static void rtl8169_init_ring_indexes(struct rtl8169_private *tp)
4095 {
4096         tp->dirty_tx = tp->dirty_rx = tp->cur_tx = tp->cur_rx = 0;
4097 }
4098
4099 static int rtl8169_init_ring(struct net_device *dev)
4100 {
4101         struct rtl8169_private *tp = netdev_priv(dev);
4102
4103         rtl8169_init_ring_indexes(tp);
4104
4105         memset(tp->tx_skb, 0x0, NUM_TX_DESC * sizeof(struct ring_info));
4106         memset(tp->Rx_databuff, 0x0, NUM_RX_DESC * sizeof(void *));
4107
4108         return rtl8169_rx_fill(tp);
4109 }
4110
4111 static void rtl8169_unmap_tx_skb(struct device *d, struct ring_info *tx_skb,
4112                                  struct TxDesc *desc)
4113 {
4114         unsigned int len = tx_skb->len;
4115
4116         dma_unmap_single(d, le64_to_cpu(desc->addr), len, DMA_TO_DEVICE);
4117
4118         desc->opts1 = 0x00;
4119         desc->opts2 = 0x00;
4120         desc->addr = 0x00;
4121         tx_skb->len = 0;
4122 }
4123
4124 static void rtl8169_tx_clear_range(struct rtl8169_private *tp, u32 start,
4125                                    unsigned int n)
4126 {
4127         unsigned int i;
4128
4129         for (i = 0; i < n; i++) {
4130                 unsigned int entry = (start + i) % NUM_TX_DESC;
4131                 struct ring_info *tx_skb = tp->tx_skb + entry;
4132                 unsigned int len = tx_skb->len;
4133
4134                 if (len) {
4135                         struct sk_buff *skb = tx_skb->skb;
4136
4137                         rtl8169_unmap_tx_skb(&tp->pci_dev->dev, tx_skb,
4138                                              tp->TxDescArray + entry);
4139                         if (skb) {
4140                                 tp->dev->stats.tx_dropped++;
4141                                 dev_kfree_skb(skb);
4142                                 tx_skb->skb = NULL;
4143                         }
4144                 }
4145         }
4146 }
4147
4148 static void rtl8169_tx_clear(struct rtl8169_private *tp)
4149 {
4150         rtl8169_tx_clear_range(tp, tp->dirty_tx, NUM_TX_DESC);
4151         tp->cur_tx = tp->dirty_tx = 0;
4152 }
4153
4154 static void rtl8169_schedule_work(struct net_device *dev, work_func_t task)
4155 {
4156         struct rtl8169_private *tp = netdev_priv(dev);
4157
4158         PREPARE_DELAYED_WORK(&tp->task, task);
4159         schedule_delayed_work(&tp->task, 4);
4160 }
4161
4162 static void rtl8169_wait_for_quiescence(struct net_device *dev)
4163 {
4164         struct rtl8169_private *tp = netdev_priv(dev);
4165         void __iomem *ioaddr = tp->mmio_addr;
4166
4167         synchronize_irq(dev->irq);
4168
4169         /* Wait for any pending NAPI task to complete */
4170         napi_disable(&tp->napi);
4171
4172         rtl8169_irq_mask_and_ack(ioaddr);
4173
4174         tp->intr_mask = 0xffff;
4175         RTL_W16(IntrMask, tp->intr_event);
4176         napi_enable(&tp->napi);
4177 }
4178
4179 static void rtl8169_reinit_task(struct work_struct *work)
4180 {
4181         struct rtl8169_private *tp =
4182                 container_of(work, struct rtl8169_private, task.work);
4183         struct net_device *dev = tp->dev;
4184         int ret;
4185
4186         rtnl_lock();
4187
4188         if (!netif_running(dev))
4189                 goto out_unlock;
4190
4191         rtl8169_wait_for_quiescence(dev);
4192         rtl8169_close(dev);
4193
4194         ret = rtl8169_open(dev);
4195         if (unlikely(ret < 0)) {
4196                 if (net_ratelimit())
4197                         netif_err(tp, drv, dev,
4198                                   "reinit failure (status = %d). Rescheduling\n",
4199                                   ret);
4200                 rtl8169_schedule_work(dev, rtl8169_reinit_task);
4201         }
4202
4203 out_unlock:
4204         rtnl_unlock();
4205 }
4206
4207 static void rtl8169_reset_task(struct work_struct *work)
4208 {
4209         struct rtl8169_private *tp =
4210                 container_of(work, struct rtl8169_private, task.work);
4211         struct net_device *dev = tp->dev;
4212
4213         rtnl_lock();
4214
4215         if (!netif_running(dev))
4216                 goto out_unlock;
4217
4218         rtl8169_wait_for_quiescence(dev);
4219
4220         rtl8169_rx_interrupt(dev, tp, tp->mmio_addr, ~(u32)0);
4221         rtl8169_tx_clear(tp);
4222
4223         if (tp->dirty_rx == tp->cur_rx) {
4224                 rtl8169_init_ring_indexes(tp);
4225                 rtl_hw_start(dev);
4226                 netif_wake_queue(dev);
4227                 rtl8169_check_link_status(dev, tp, tp->mmio_addr);
4228         } else {
4229                 if (net_ratelimit())
4230                         netif_emerg(tp, intr, dev, "Rx buffers shortage\n");
4231                 rtl8169_schedule_work(dev, rtl8169_reset_task);
4232         }
4233
4234 out_unlock:
4235         rtnl_unlock();
4236 }
4237
4238 static void rtl8169_tx_timeout(struct net_device *dev)
4239 {
4240         struct rtl8169_private *tp = netdev_priv(dev);
4241
4242         rtl8169_hw_reset(tp);
4243
4244         /* Let's wait a bit while any (async) irq lands on */
4245         rtl8169_schedule_work(dev, rtl8169_reset_task);
4246 }
4247
4248 static int rtl8169_xmit_frags(struct rtl8169_private *tp, struct sk_buff *skb,
4249                               u32 opts1)
4250 {
4251         struct skb_shared_info *info = skb_shinfo(skb);
4252         unsigned int cur_frag, entry;
4253         struct TxDesc * uninitialized_var(txd);
4254         struct device *d = &tp->pci_dev->dev;
4255
4256         entry = tp->cur_tx;
4257         for (cur_frag = 0; cur_frag < info->nr_frags; cur_frag++) {
4258                 skb_frag_t *frag = info->frags + cur_frag;
4259                 dma_addr_t mapping;
4260                 u32 status, len;
4261                 void *addr;
4262
4263                 entry = (entry + 1) % NUM_TX_DESC;
4264
4265                 txd = tp->TxDescArray + entry;
4266                 len = frag->size;
4267                 addr = ((void *) page_address(frag->page)) + frag->page_offset;
4268                 mapping = dma_map_single(d, addr, len, DMA_TO_DEVICE);
4269                 if (unlikely(dma_mapping_error(d, mapping))) {
4270                         if (net_ratelimit())
4271                                 netif_err(tp, drv, tp->dev,
4272                                           "Failed to map TX fragments DMA!\n");
4273                         goto err_out;
4274                 }
4275
4276                 /* anti gcc 2.95.3 bugware (sic) */
4277                 status = opts1 | len | (RingEnd * !((entry + 1) % NUM_TX_DESC));
4278
4279                 txd->opts1 = cpu_to_le32(status);
4280                 txd->addr = cpu_to_le64(mapping);
4281
4282                 tp->tx_skb[entry].len = len;
4283         }
4284
4285         if (cur_frag) {
4286                 tp->tx_skb[entry].skb = skb;
4287                 txd->opts1 |= cpu_to_le32(LastFrag);
4288         }
4289
4290         return cur_frag;
4291
4292 err_out:
4293         rtl8169_tx_clear_range(tp, tp->cur_tx + 1, cur_frag);
4294         return -EIO;
4295 }
4296
4297 static inline u32 rtl8169_tso_csum(struct sk_buff *skb, struct net_device *dev)
4298 {
4299         if (dev->features & NETIF_F_TSO) {
4300                 u32 mss = skb_shinfo(skb)->gso_size;
4301
4302                 if (mss)
4303                         return LargeSend | ((mss & MSSMask) << MSSShift);
4304         }
4305         if (skb->ip_summed == CHECKSUM_PARTIAL) {
4306                 const struct iphdr *ip = ip_hdr(skb);
4307
4308                 if (ip->protocol == IPPROTO_TCP)
4309                         return IPCS | TCPCS;
4310                 else if (ip->protocol == IPPROTO_UDP)
4311                         return IPCS | UDPCS;
4312                 WARN_ON(1);     /* we need a WARN() */
4313         }
4314         return 0;
4315 }
4316
4317 static netdev_tx_t rtl8169_start_xmit(struct sk_buff *skb,
4318                                       struct net_device *dev)
4319 {
4320         struct rtl8169_private *tp = netdev_priv(dev);
4321         unsigned int entry = tp->cur_tx % NUM_TX_DESC;
4322         struct TxDesc *txd = tp->TxDescArray + entry;
4323         void __iomem *ioaddr = tp->mmio_addr;
4324         struct device *d = &tp->pci_dev->dev;
4325         dma_addr_t mapping;
4326         u32 status, len;
4327         u32 opts1;
4328         int frags;
4329
4330         if (unlikely(TX_BUFFS_AVAIL(tp) < skb_shinfo(skb)->nr_frags)) {
4331                 netif_err(tp, drv, dev, "BUG! Tx Ring full when queue awake!\n");
4332                 goto err_stop_0;
4333         }
4334
4335         if (unlikely(le32_to_cpu(txd->opts1) & DescOwn))
4336                 goto err_stop_0;
4337
4338         len = skb_headlen(skb);
4339         mapping = dma_map_single(d, skb->data, len, DMA_TO_DEVICE);
4340         if (unlikely(dma_mapping_error(d, mapping))) {
4341                 if (net_ratelimit())
4342                         netif_err(tp, drv, dev, "Failed to map TX DMA!\n");
4343                 goto err_dma_0;
4344         }
4345
4346         tp->tx_skb[entry].len = len;
4347         txd->addr = cpu_to_le64(mapping);
4348         txd->opts2 = cpu_to_le32(rtl8169_tx_vlan_tag(tp, skb));
4349
4350         opts1 = DescOwn | rtl8169_tso_csum(skb, dev);
4351
4352         frags = rtl8169_xmit_frags(tp, skb, opts1);
4353         if (frags < 0)
4354                 goto err_dma_1;
4355         else if (frags)
4356                 opts1 |= FirstFrag;
4357         else {
4358                 opts1 |= FirstFrag | LastFrag;
4359                 tp->tx_skb[entry].skb = skb;
4360         }
4361
4362         wmb();
4363
4364         /* anti gcc 2.95.3 bugware (sic) */
4365         status = opts1 | len | (RingEnd * !((entry + 1) % NUM_TX_DESC));
4366         txd->opts1 = cpu_to_le32(status);
4367
4368         tp->cur_tx += frags + 1;
4369
4370         wmb();
4371
4372         RTL_W8(TxPoll, NPQ);    /* set polling bit */
4373
4374         if (TX_BUFFS_AVAIL(tp) < MAX_SKB_FRAGS) {
4375                 netif_stop_queue(dev);
4376                 smp_rmb();
4377                 if (TX_BUFFS_AVAIL(tp) >= MAX_SKB_FRAGS)
4378                         netif_wake_queue(dev);
4379         }
4380
4381         return NETDEV_TX_OK;
4382
4383 err_dma_1:
4384         rtl8169_unmap_tx_skb(d, tp->tx_skb + entry, txd);
4385 err_dma_0:
4386         dev_kfree_skb(skb);
4387         dev->stats.tx_dropped++;
4388         return NETDEV_TX_OK;
4389
4390 err_stop_0:
4391         netif_stop_queue(dev);
4392         dev->stats.tx_dropped++;
4393         return NETDEV_TX_BUSY;
4394 }
4395
4396 static void rtl8169_pcierr_interrupt(struct net_device *dev)
4397 {
4398         struct rtl8169_private *tp = netdev_priv(dev);
4399         struct pci_dev *pdev = tp->pci_dev;
4400         u16 pci_status, pci_cmd;
4401
4402         pci_read_config_word(pdev, PCI_COMMAND, &pci_cmd);
4403         pci_read_config_word(pdev, PCI_STATUS, &pci_status);
4404
4405         netif_err(tp, intr, dev, "PCI error (cmd = 0x%04x, status = 0x%04x)\n",
4406                   pci_cmd, pci_status);
4407
4408         /*
4409          * The recovery sequence below admits a very elaborated explanation:
4410          * - it seems to work;
4411          * - I did not see what else could be done;
4412          * - it makes iop3xx happy.
4413          *
4414          * Feel free to adjust to your needs.
4415          */
4416         if (pdev->broken_parity_status)
4417                 pci_cmd &= ~PCI_COMMAND_PARITY;
4418         else
4419                 pci_cmd |= PCI_COMMAND_SERR | PCI_COMMAND_PARITY;
4420
4421         pci_write_config_word(pdev, PCI_COMMAND, pci_cmd);
4422
4423         pci_write_config_word(pdev, PCI_STATUS,
4424                 pci_status & (PCI_STATUS_DETECTED_PARITY |
4425                 PCI_STATUS_SIG_SYSTEM_ERROR | PCI_STATUS_REC_MASTER_ABORT |
4426                 PCI_STATUS_REC_TARGET_ABORT | PCI_STATUS_SIG_TARGET_ABORT));
4427
4428         /* The infamous DAC f*ckup only happens at boot time */
4429         if ((tp->cp_cmd & PCIDAC) && !tp->dirty_rx && !tp->cur_rx) {
4430                 void __iomem *ioaddr = tp->mmio_addr;
4431
4432                 netif_info(tp, intr, dev, "disabling PCI DAC\n");
4433                 tp->cp_cmd &= ~PCIDAC;
4434                 RTL_W16(CPlusCmd, tp->cp_cmd);
4435                 dev->features &= ~NETIF_F_HIGHDMA;
4436         }
4437
4438         rtl8169_hw_reset(tp);
4439
4440         rtl8169_schedule_work(dev, rtl8169_reinit_task);
4441 }
4442
4443 static void rtl8169_tx_interrupt(struct net_device *dev,
4444                                  struct rtl8169_private *tp,
4445                                  void __iomem *ioaddr)
4446 {
4447         unsigned int dirty_tx, tx_left;
4448
4449         dirty_tx = tp->dirty_tx;
4450         smp_rmb();
4451         tx_left = tp->cur_tx - dirty_tx;
4452
4453         while (tx_left > 0) {
4454                 unsigned int entry = dirty_tx % NUM_TX_DESC;
4455                 struct ring_info *tx_skb = tp->tx_skb + entry;
4456                 u32 status;
4457
4458                 rmb();
4459                 status = le32_to_cpu(tp->TxDescArray[entry].opts1);
4460                 if (status & DescOwn)
4461                         break;
4462
4463                 rtl8169_unmap_tx_skb(&tp->pci_dev->dev, tx_skb,
4464                                      tp->TxDescArray + entry);
4465                 if (status & LastFrag) {
4466                         dev->stats.tx_packets++;
4467                         dev->stats.tx_bytes += tx_skb->skb->len;
4468                         dev_kfree_skb(tx_skb->skb);
4469                         tx_skb->skb = NULL;
4470                 }
4471                 dirty_tx++;
4472                 tx_left--;
4473         }
4474
4475         if (tp->dirty_tx != dirty_tx) {
4476                 tp->dirty_tx = dirty_tx;
4477                 smp_wmb();
4478                 if (netif_queue_stopped(dev) &&
4479                     (TX_BUFFS_AVAIL(tp) >= MAX_SKB_FRAGS)) {
4480                         netif_wake_queue(dev);
4481                 }
4482                 /*
4483                  * 8168 hack: TxPoll requests are lost when the Tx packets are
4484                  * too close. Let's kick an extra TxPoll request when a burst
4485                  * of start_xmit activity is detected (if it is not detected,
4486                  * it is slow enough). -- FR
4487                  */
4488                 smp_rmb();
4489                 if (tp->cur_tx != dirty_tx)
4490                         RTL_W8(TxPoll, NPQ);
4491         }
4492 }
4493
4494 static inline int rtl8169_fragmented_frame(u32 status)
4495 {
4496         return (status & (FirstFrag | LastFrag)) != (FirstFrag | LastFrag);
4497 }
4498
4499 static inline void rtl8169_rx_csum(struct sk_buff *skb, u32 opts1)
4500 {
4501         u32 status = opts1 & RxProtoMask;
4502
4503         if (((status == RxProtoTCP) && !(opts1 & TCPFail)) ||
4504             ((status == RxProtoUDP) && !(opts1 & UDPFail)))
4505                 skb->ip_summed = CHECKSUM_UNNECESSARY;
4506         else
4507                 skb_checksum_none_assert(skb);
4508 }
4509
4510 static struct sk_buff *rtl8169_try_rx_copy(void *data,
4511                                            struct rtl8169_private *tp,
4512                                            int pkt_size,
4513                                            dma_addr_t addr)
4514 {
4515         struct sk_buff *skb;
4516         struct device *d = &tp->pci_dev->dev;
4517
4518         data = rtl8169_align(data);
4519         dma_sync_single_for_cpu(d, addr, pkt_size, DMA_FROM_DEVICE);
4520         prefetch(data);
4521         skb = netdev_alloc_skb_ip_align(tp->dev, pkt_size);
4522         if (skb)
4523                 memcpy(skb->data, data, pkt_size);
4524         dma_sync_single_for_device(d, addr, pkt_size, DMA_FROM_DEVICE);
4525
4526         return skb;
4527 }
4528
4529 /*
4530  * Warning : rtl8169_rx_interrupt() might be called :
4531  * 1) from NAPI (softirq) context
4532  *      (polling = 1 : we should call netif_receive_skb())
4533  * 2) from process context (rtl8169_reset_task())
4534  *      (polling = 0 : we must call netif_rx() instead)
4535  */
4536 static int rtl8169_rx_interrupt(struct net_device *dev,
4537                                 struct rtl8169_private *tp,
4538                                 void __iomem *ioaddr, u32 budget)
4539 {
4540         unsigned int cur_rx, rx_left;
4541         unsigned int count;
4542         int polling = (budget != ~(u32)0) ? 1 : 0;
4543
4544         cur_rx = tp->cur_rx;
4545         rx_left = NUM_RX_DESC + tp->dirty_rx - cur_rx;
4546         rx_left = min(rx_left, budget);
4547
4548         for (; rx_left > 0; rx_left--, cur_rx++) {
4549                 unsigned int entry = cur_rx % NUM_RX_DESC;
4550                 struct RxDesc *desc = tp->RxDescArray + entry;
4551                 u32 status;
4552
4553                 rmb();
4554                 status = le32_to_cpu(desc->opts1);
4555
4556                 if (status & DescOwn)
4557                         break;
4558                 if (unlikely(status & RxRES)) {
4559                         netif_info(tp, rx_err, dev, "Rx ERROR. status = %08x\n",
4560                                    status);
4561                         dev->stats.rx_errors++;
4562                         if (status & (RxRWT | RxRUNT))
4563                                 dev->stats.rx_length_errors++;
4564                         if (status & RxCRC)
4565                                 dev->stats.rx_crc_errors++;
4566                         if (status & RxFOVF) {
4567                                 rtl8169_schedule_work(dev, rtl8169_reset_task);
4568                                 dev->stats.rx_fifo_errors++;
4569                         }
4570                         rtl8169_mark_to_asic(desc, rx_buf_sz);
4571                 } else {
4572                         struct sk_buff *skb;
4573                         dma_addr_t addr = le64_to_cpu(desc->addr);
4574                         int pkt_size = (status & 0x00001FFF) - 4;
4575
4576                         /*
4577                          * The driver does not support incoming fragmented
4578                          * frames. They are seen as a symptom of over-mtu
4579                          * sized frames.
4580                          */
4581                         if (unlikely(rtl8169_fragmented_frame(status))) {
4582                                 dev->stats.rx_dropped++;
4583                                 dev->stats.rx_length_errors++;
4584                                 rtl8169_mark_to_asic(desc, rx_buf_sz);
4585                                 continue;
4586                         }
4587
4588                         skb = rtl8169_try_rx_copy(tp->Rx_databuff[entry],
4589                                                   tp, pkt_size, addr);
4590                         rtl8169_mark_to_asic(desc, rx_buf_sz);
4591                         if (!skb) {
4592                                 dev->stats.rx_dropped++;
4593                                 continue;
4594                         }
4595
4596                         rtl8169_rx_csum(skb, status);
4597                         skb_put(skb, pkt_size);
4598                         skb->protocol = eth_type_trans(skb, dev);
4599
4600                         if (rtl8169_rx_vlan_skb(tp, desc, skb, polling) < 0) {
4601                                 if (likely(polling))
4602                                         napi_gro_receive(&tp->napi, skb);
4603                                 else
4604                                         netif_rx(skb);
4605                         }
4606
4607                         dev->stats.rx_bytes += pkt_size;
4608                         dev->stats.rx_packets++;
4609                 }
4610
4611                 /* Work around for AMD plateform. */
4612                 if ((desc->opts2 & cpu_to_le32(0xfffe000)) &&
4613                     (tp->mac_version == RTL_GIGA_MAC_VER_05)) {
4614                         desc->opts2 = 0;
4615                         cur_rx++;
4616                 }
4617         }
4618
4619         count = cur_rx - tp->cur_rx;
4620         tp->cur_rx = cur_rx;
4621
4622         tp->dirty_rx += count;
4623
4624         return count;
4625 }
4626
4627 static irqreturn_t rtl8169_interrupt(int irq, void *dev_instance)
4628 {
4629         struct net_device *dev = dev_instance;
4630         struct rtl8169_private *tp = netdev_priv(dev);
4631         void __iomem *ioaddr = tp->mmio_addr;
4632         int handled = 0;
4633         int status;
4634
4635         /* loop handling interrupts until we have no new ones or
4636          * we hit a invalid/hotplug case.
4637          */
4638         status = RTL_R16(IntrStatus);
4639         while (status && status != 0xffff) {
4640                 handled = 1;
4641
4642                 /* Handle all of the error cases first. These will reset
4643                  * the chip, so just exit the loop.
4644                  */
4645                 if (unlikely(!netif_running(dev))) {
4646                         rtl8169_asic_down(ioaddr);
4647                         break;
4648                 }
4649
4650                 if (unlikely(status & RxFIFOOver)) {
4651                         switch (tp->mac_version) {
4652                         /* Work around for rx fifo overflow */
4653                         case RTL_GIGA_MAC_VER_11:
4654                         case RTL_GIGA_MAC_VER_22:
4655                         case RTL_GIGA_MAC_VER_26:
4656                                 netif_stop_queue(dev);
4657                                 rtl8169_tx_timeout(dev);
4658                                 goto done;
4659                         /* Testers needed. */
4660                         case RTL_GIGA_MAC_VER_17:
4661                         case RTL_GIGA_MAC_VER_19:
4662                         case RTL_GIGA_MAC_VER_20:
4663                         case RTL_GIGA_MAC_VER_21:
4664                         case RTL_GIGA_MAC_VER_23:
4665                         case RTL_GIGA_MAC_VER_24:
4666                         case RTL_GIGA_MAC_VER_27:
4667                         case RTL_GIGA_MAC_VER_28:
4668                         /* Experimental science. Pktgen proof. */
4669                         case RTL_GIGA_MAC_VER_12:
4670                         case RTL_GIGA_MAC_VER_25:
4671                                 if (status == RxFIFOOver)
4672                                         goto done;
4673                                 break;
4674                         default:
4675                                 break;
4676                         }
4677                 }
4678
4679                 if (unlikely(status & SYSErr)) {
4680                         rtl8169_pcierr_interrupt(dev);
4681                         break;
4682                 }
4683
4684                 if (status & LinkChg)
4685                         __rtl8169_check_link_status(dev, tp, ioaddr, true);
4686
4687                 /* We need to see the lastest version of tp->intr_mask to
4688                  * avoid ignoring an MSI interrupt and having to wait for
4689                  * another event which may never come.
4690                  */
4691                 smp_rmb();
4692                 if (status & tp->intr_mask & tp->napi_event) {
4693                         RTL_W16(IntrMask, tp->intr_event & ~tp->napi_event);
4694                         tp->intr_mask = ~tp->napi_event;
4695
4696                         if (likely(napi_schedule_prep(&tp->napi)))
4697                                 __napi_schedule(&tp->napi);
4698                         else
4699                                 netif_info(tp, intr, dev,
4700                                            "interrupt %04x in poll\n", status);
4701                 }
4702
4703                 /* We only get a new MSI interrupt when all active irq
4704                  * sources on the chip have been acknowledged. So, ack
4705                  * everything we've seen and check if new sources have become
4706                  * active to avoid blocking all interrupts from the chip.
4707                  */
4708                 RTL_W16(IntrStatus,
4709                         (status & RxFIFOOver) ? (status | RxOverflow) : status);
4710                 status = RTL_R16(IntrStatus);
4711         }
4712 done:
4713         return IRQ_RETVAL(handled);
4714 }
4715
4716 static int rtl8169_poll(struct napi_struct *napi, int budget)
4717 {
4718         struct rtl8169_private *tp = container_of(napi, struct rtl8169_private, napi);
4719         struct net_device *dev = tp->dev;
4720         void __iomem *ioaddr = tp->mmio_addr;
4721         int work_done;
4722
4723         work_done = rtl8169_rx_interrupt(dev, tp, ioaddr, (u32) budget);
4724         rtl8169_tx_interrupt(dev, tp, ioaddr);
4725
4726         if (work_done < budget) {
4727                 napi_complete(napi);
4728
4729                 /* We need for force the visibility of tp->intr_mask
4730                  * for other CPUs, as we can loose an MSI interrupt
4731                  * and potentially wait for a retransmit timeout if we don't.
4732                  * The posted write to IntrMask is safe, as it will
4733                  * eventually make it to the chip and we won't loose anything
4734                  * until it does.
4735                  */
4736                 tp->intr_mask = 0xffff;
4737                 wmb();
4738                 RTL_W16(IntrMask, tp->intr_event);
4739         }
4740
4741         return work_done;
4742 }
4743
4744 static void rtl8169_rx_missed(struct net_device *dev, void __iomem *ioaddr)
4745 {
4746         struct rtl8169_private *tp = netdev_priv(dev);
4747
4748         if (tp->mac_version > RTL_GIGA_MAC_VER_06)
4749                 return;
4750
4751         dev->stats.rx_missed_errors += (RTL_R32(RxMissed) & 0xffffff);
4752         RTL_W32(RxMissed, 0);
4753 }
4754
4755 static void rtl8169_down(struct net_device *dev)
4756 {
4757         struct rtl8169_private *tp = netdev_priv(dev);
4758         void __iomem *ioaddr = tp->mmio_addr;
4759
4760         rtl8169_delete_timer(dev);
4761
4762         netif_stop_queue(dev);
4763
4764         napi_disable(&tp->napi);
4765
4766         spin_lock_irq(&tp->lock);
4767
4768         rtl8169_asic_down(ioaddr);
4769         /*
4770          * At this point device interrupts can not be enabled in any function,
4771          * as netif_running is not true (rtl8169_interrupt, rtl8169_reset_task,
4772          * rtl8169_reinit_task) and napi is disabled (rtl8169_poll).
4773          */
4774         rtl8169_rx_missed(dev, ioaddr);
4775
4776         spin_unlock_irq(&tp->lock);
4777
4778         synchronize_irq(dev->irq);
4779
4780         /* Give a racing hard_start_xmit a few cycles to complete. */
4781         synchronize_sched();  /* FIXME: should this be synchronize_irq()? */
4782
4783         rtl8169_tx_clear(tp);
4784
4785         rtl8169_rx_clear(tp);
4786
4787         rtl_pll_power_down(tp);
4788 }
4789
4790 static int rtl8169_close(struct net_device *dev)
4791 {
4792         struct rtl8169_private *tp = netdev_priv(dev);
4793         struct pci_dev *pdev = tp->pci_dev;
4794
4795         pm_runtime_get_sync(&pdev->dev);
4796
4797         /* update counters before going down */
4798         rtl8169_update_counters(dev);
4799
4800         rtl8169_down(dev);
4801
4802         free_irq(dev->irq, dev);
4803
4804         dma_free_coherent(&pdev->dev, R8169_RX_RING_BYTES, tp->RxDescArray,
4805                           tp->RxPhyAddr);
4806         dma_free_coherent(&pdev->dev, R8169_TX_RING_BYTES, tp->TxDescArray,
4807                           tp->TxPhyAddr);
4808         tp->TxDescArray = NULL;
4809         tp->RxDescArray = NULL;
4810
4811         pm_runtime_put_sync(&pdev->dev);
4812
4813         return 0;
4814 }
4815
4816 static void rtl_set_rx_mode(struct net_device *dev)
4817 {
4818         struct rtl8169_private *tp = netdev_priv(dev);
4819         void __iomem *ioaddr = tp->mmio_addr;
4820         unsigned long flags;
4821         u32 mc_filter[2];       /* Multicast hash filter */
4822         int rx_mode;
4823         u32 tmp = 0;
4824
4825         if (dev->flags & IFF_PROMISC) {
4826                 /* Unconditionally log net taps. */
4827                 netif_notice(tp, link, dev, "Promiscuous mode enabled\n");
4828                 rx_mode =
4829                     AcceptBroadcast | AcceptMulticast | AcceptMyPhys |
4830                     AcceptAllPhys;
4831                 mc_filter[1] = mc_filter[0] = 0xffffffff;
4832         } else if ((netdev_mc_count(dev) > multicast_filter_limit) ||
4833                    (dev->flags & IFF_ALLMULTI)) {
4834                 /* Too many to filter perfectly -- accept all multicasts. */
4835                 rx_mode = AcceptBroadcast | AcceptMulticast | AcceptMyPhys;
4836                 mc_filter[1] = mc_filter[0] = 0xffffffff;
4837         } else {
4838                 struct netdev_hw_addr *ha;
4839
4840                 rx_mode = AcceptBroadcast | AcceptMyPhys;
4841                 mc_filter[1] = mc_filter[0] = 0;
4842                 netdev_for_each_mc_addr(ha, dev) {
4843                         int bit_nr = ether_crc(ETH_ALEN, ha->addr) >> 26;
4844                         mc_filter[bit_nr >> 5] |= 1 << (bit_nr & 31);
4845                         rx_mode |= AcceptMulticast;
4846                 }
4847         }
4848
4849         spin_lock_irqsave(&tp->lock, flags);
4850
4851         tmp = rtl8169_rx_config | rx_mode |
4852               (RTL_R32(RxConfig) & rtl_chip_info[tp->chipset].RxConfigMask);
4853
4854         if (tp->mac_version > RTL_GIGA_MAC_VER_06) {
4855                 u32 data = mc_filter[0];
4856
4857                 mc_filter[0] = swab32(mc_filter[1]);
4858                 mc_filter[1] = swab32(data);
4859         }
4860
4861         RTL_W32(MAR0 + 4, mc_filter[1]);
4862         RTL_W32(MAR0 + 0, mc_filter[0]);
4863
4864         RTL_W32(RxConfig, tmp);
4865
4866         spin_unlock_irqrestore(&tp->lock, flags);
4867 }
4868
4869 /**
4870  *  rtl8169_get_stats - Get rtl8169 read/write statistics
4871  *  @dev: The Ethernet Device to get statistics for
4872  *
4873  *  Get TX/RX statistics for rtl8169
4874  */
4875 static struct net_device_stats *rtl8169_get_stats(struct net_device *dev)
4876 {
4877         struct rtl8169_private *tp = netdev_priv(dev);
4878         void __iomem *ioaddr = tp->mmio_addr;
4879         unsigned long flags;
4880
4881         if (netif_running(dev)) {
4882                 spin_lock_irqsave(&tp->lock, flags);
4883                 rtl8169_rx_missed(dev, ioaddr);
4884                 spin_unlock_irqrestore(&tp->lock, flags);
4885         }
4886
4887         return &dev->stats;
4888 }
4889
4890 static void rtl8169_net_suspend(struct net_device *dev)
4891 {
4892         struct rtl8169_private *tp = netdev_priv(dev);
4893
4894         if (!netif_running(dev))
4895                 return;
4896
4897         rtl_pll_power_down(tp);
4898
4899         netif_device_detach(dev);
4900         netif_stop_queue(dev);
4901 }
4902
4903 #ifdef CONFIG_PM
4904
4905 static int rtl8169_suspend(struct device *device)
4906 {
4907         struct pci_dev *pdev = to_pci_dev(device);
4908         struct net_device *dev = pci_get_drvdata(pdev);
4909
4910         rtl8169_net_suspend(dev);
4911
4912         return 0;
4913 }
4914
4915 static void __rtl8169_resume(struct net_device *dev)
4916 {
4917         struct rtl8169_private *tp = netdev_priv(dev);
4918
4919         netif_device_attach(dev);
4920
4921         rtl_pll_power_up(tp);
4922
4923         rtl8169_schedule_work(dev, rtl8169_reset_task);
4924 }
4925
4926 static int rtl8169_resume(struct device *device)
4927 {
4928         struct pci_dev *pdev = to_pci_dev(device);
4929         struct net_device *dev = pci_get_drvdata(pdev);
4930         struct rtl8169_private *tp = netdev_priv(dev);
4931
4932         rtl8169_init_phy(dev, tp);
4933
4934         if (netif_running(dev))
4935                 __rtl8169_resume(dev);
4936
4937         return 0;
4938 }
4939
4940 static int rtl8169_runtime_suspend(struct device *device)
4941 {
4942         struct pci_dev *pdev = to_pci_dev(device);
4943         struct net_device *dev = pci_get_drvdata(pdev);
4944         struct rtl8169_private *tp = netdev_priv(dev);
4945
4946         if (!tp->TxDescArray)
4947                 return 0;
4948
4949         spin_lock_irq(&tp->lock);
4950         tp->saved_wolopts = __rtl8169_get_wol(tp);
4951         __rtl8169_set_wol(tp, WAKE_ANY);
4952         spin_unlock_irq(&tp->lock);
4953
4954         rtl8169_net_suspend(dev);
4955
4956         return 0;
4957 }
4958
4959 static int rtl8169_runtime_resume(struct device *device)
4960 {
4961         struct pci_dev *pdev = to_pci_dev(device);
4962         struct net_device *dev = pci_get_drvdata(pdev);
4963         struct rtl8169_private *tp = netdev_priv(dev);
4964
4965         if (!tp->TxDescArray)
4966                 return 0;
4967
4968         spin_lock_irq(&tp->lock);
4969         __rtl8169_set_wol(tp, tp->saved_wolopts);
4970         tp->saved_wolopts = 0;
4971         spin_unlock_irq(&tp->lock);
4972
4973         rtl8169_init_phy(dev, tp);
4974
4975         __rtl8169_resume(dev);
4976
4977         return 0;
4978 }
4979
4980 static int rtl8169_runtime_idle(struct device *device)
4981 {
4982         struct pci_dev *pdev = to_pci_dev(device);
4983         struct net_device *dev = pci_get_drvdata(pdev);
4984         struct rtl8169_private *tp = netdev_priv(dev);
4985
4986         return tp->TxDescArray ? -EBUSY : 0;
4987 }
4988
4989 static const struct dev_pm_ops rtl8169_pm_ops = {
4990         .suspend = rtl8169_suspend,
4991         .resume = rtl8169_resume,
4992         .freeze = rtl8169_suspend,
4993         .thaw = rtl8169_resume,
4994         .poweroff = rtl8169_suspend,
4995         .restore = rtl8169_resume,
4996         .runtime_suspend = rtl8169_runtime_suspend,
4997         .runtime_resume = rtl8169_runtime_resume,
4998         .runtime_idle = rtl8169_runtime_idle,
4999 };
5000
5001 #define RTL8169_PM_OPS  (&rtl8169_pm_ops)
5002
5003 #else /* !CONFIG_PM */
5004
5005 #define RTL8169_PM_OPS  NULL
5006
5007 #endif /* !CONFIG_PM */
5008
5009 static void rtl_shutdown(struct pci_dev *pdev)
5010 {
5011         struct net_device *dev = pci_get_drvdata(pdev);
5012         struct rtl8169_private *tp = netdev_priv(dev);
5013         void __iomem *ioaddr = tp->mmio_addr;
5014
5015         rtl8169_net_suspend(dev);
5016
5017         /* restore original MAC address */
5018         rtl_rar_set(tp, dev->perm_addr);
5019
5020         spin_lock_irq(&tp->lock);
5021
5022         rtl8169_asic_down(ioaddr);
5023
5024         spin_unlock_irq(&tp->lock);
5025
5026         if (system_state == SYSTEM_POWER_OFF) {
5027                 /* WoL fails with some 8168 when the receiver is disabled. */
5028                 if (tp->features & RTL_FEATURE_WOL) {
5029                         pci_clear_master(pdev);
5030
5031                         RTL_W8(ChipCmd, CmdRxEnb);
5032                         /* PCI commit */
5033                         RTL_R8(ChipCmd);
5034                 }
5035
5036                 pci_wake_from_d3(pdev, true);
5037                 pci_set_power_state(pdev, PCI_D3hot);
5038         }
5039 }
5040
5041 static struct pci_driver rtl8169_pci_driver = {
5042         .name           = MODULENAME,
5043         .id_table       = rtl8169_pci_tbl,
5044         .probe          = rtl8169_init_one,
5045         .remove         = __devexit_p(rtl8169_remove_one),
5046         .shutdown       = rtl_shutdown,
5047         .driver.pm      = RTL8169_PM_OPS,
5048 };
5049
5050 static int __init rtl8169_init_module(void)
5051 {
5052         return pci_register_driver(&rtl8169_pci_driver);
5053 }
5054
5055 static void __exit rtl8169_cleanup_module(void)
5056 {
5057         pci_unregister_driver(&rtl8169_pci_driver);
5058 }
5059
5060 module_init(rtl8169_init_module);
5061 module_exit(rtl8169_cleanup_module);