Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
| 2 | ========================================================================= |
| 3 | r8169.c: A RealTek RTL-8169 Gigabit Ethernet driver for Linux kernel 2.4.x. |
| 4 | -------------------------------------------------------------------- |
| 5 | |
| 6 | History: |
| 7 | Feb 4 2002 - created initially by ShuChen <shuchen@realtek.com.tw>. |
| 8 | May 20 2002 - Add link status force-mode and TBI mode support. |
| 9 | 2004 - Massive updates. See kernel SCM system for details. |
| 10 | ========================================================================= |
| 11 | 1. [DEPRECATED: use ethtool instead] The media can be forced in 5 modes. |
| 12 | Command: 'insmod r8169 media = SET_MEDIA' |
| 13 | Ex: 'insmod r8169 media = 0x04' will force PHY to operate in 100Mpbs Half-duplex. |
| 14 | |
| 15 | SET_MEDIA can be: |
| 16 | _10_Half = 0x01 |
| 17 | _10_Full = 0x02 |
| 18 | _100_Half = 0x04 |
| 19 | _100_Full = 0x08 |
| 20 | _1000_Full = 0x10 |
| 21 | |
| 22 | 2. Support TBI mode. |
| 23 | ========================================================================= |
| 24 | VERSION 1.1 <2002/10/4> |
| 25 | |
| 26 | The bit4:0 of MII register 4 is called "selector field", and have to be |
| 27 | 00001b to indicate support of IEEE std 802.3 during NWay process of |
| 28 | exchanging Link Code Word (FLP). |
| 29 | |
| 30 | VERSION 1.2 <2002/11/30> |
| 31 | |
| 32 | - Large style cleanup |
| 33 | - Use ether_crc in stock kernel (linux/crc32.h) |
| 34 | - Copy mc_filter setup code from 8139cp |
| 35 | (includes an optimization, and avoids set_bit use) |
| 36 | |
| 37 | VERSION 1.6LK <2004/04/14> |
| 38 | |
| 39 | - Merge of Realtek's version 1.6 |
| 40 | - Conversion to DMA API |
| 41 | - Suspend/resume |
| 42 | - Endianness |
| 43 | - Misc Rx/Tx bugs |
| 44 | |
| 45 | VERSION 2.2LK <2005/01/25> |
| 46 | |
| 47 | - RX csum, TX csum/SG, TSO |
| 48 | - VLAN |
| 49 | - baby (< 7200) Jumbo frames support |
| 50 | - Merge of Realtek's version 2.2 (new phy) |
| 51 | */ |
| 52 | |
| 53 | #include <linux/module.h> |
| 54 | #include <linux/moduleparam.h> |
| 55 | #include <linux/pci.h> |
| 56 | #include <linux/netdevice.h> |
| 57 | #include <linux/etherdevice.h> |
| 58 | #include <linux/delay.h> |
| 59 | #include <linux/ethtool.h> |
| 60 | #include <linux/mii.h> |
| 61 | #include <linux/if_vlan.h> |
| 62 | #include <linux/crc32.h> |
| 63 | #include <linux/in.h> |
| 64 | #include <linux/ip.h> |
| 65 | #include <linux/tcp.h> |
| 66 | #include <linux/init.h> |
| 67 | #include <linux/dma-mapping.h> |
| 68 | |
| 69 | #include <asm/io.h> |
| 70 | #include <asm/irq.h> |
| 71 | |
Stephen Hemminger | f7ccf42 | 2005-05-27 21:11:41 +0200 | [diff] [blame] | 72 | #ifdef CONFIG_R8169_NAPI |
| 73 | #define NAPI_SUFFIX "-NAPI" |
| 74 | #else |
| 75 | #define NAPI_SUFFIX "" |
| 76 | #endif |
| 77 | |
| 78 | #define RTL8169_VERSION "2.2LK" NAPI_SUFFIX |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 79 | #define MODULENAME "r8169" |
| 80 | #define PFX MODULENAME ": " |
| 81 | |
| 82 | #ifdef RTL8169_DEBUG |
| 83 | #define assert(expr) \ |
| 84 | if(!(expr)) { \ |
| 85 | printk( "Assertion failed! %s,%s,%s,line=%d\n", \ |
| 86 | #expr,__FILE__,__FUNCTION__,__LINE__); \ |
| 87 | } |
| 88 | #define dprintk(fmt, args...) do { printk(PFX fmt, ## args); } while (0) |
| 89 | #else |
| 90 | #define assert(expr) do {} while (0) |
| 91 | #define dprintk(fmt, args...) do {} while (0) |
| 92 | #endif /* RTL8169_DEBUG */ |
| 93 | |
Stephen Hemminger | b57b7e5 | 2005-05-27 21:11:52 +0200 | [diff] [blame] | 94 | #define R8169_MSG_DEFAULT \ |
| 95 | (NETIF_MSG_DRV | NETIF_MSG_PROBE | NETIF_MSG_LINK | NETIF_MSG_IFUP | \ |
| 96 | NETIF_MSG_IFDOWN) |
| 97 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 98 | #define TX_BUFFS_AVAIL(tp) \ |
| 99 | (tp->dirty_tx + NUM_TX_DESC - tp->cur_tx - 1) |
| 100 | |
| 101 | #ifdef CONFIG_R8169_NAPI |
| 102 | #define rtl8169_rx_skb netif_receive_skb |
Tommy Christensen | 0b50f81 | 2005-09-21 12:13:57 -0700 | [diff] [blame] | 103 | #define rtl8169_rx_hwaccel_skb vlan_hwaccel_receive_skb |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 104 | #define rtl8169_rx_quota(count, quota) min(count, quota) |
| 105 | #else |
| 106 | #define rtl8169_rx_skb netif_rx |
Tommy Christensen | 0b50f81 | 2005-09-21 12:13:57 -0700 | [diff] [blame] | 107 | #define rtl8169_rx_hwaccel_skb vlan_hwaccel_rx |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 108 | #define rtl8169_rx_quota(count, quota) count |
| 109 | #endif |
| 110 | |
| 111 | /* media options */ |
| 112 | #define MAX_UNITS 8 |
| 113 | static int media[MAX_UNITS] = { -1, -1, -1, -1, -1, -1, -1, -1 }; |
| 114 | static int num_media = 0; |
| 115 | |
| 116 | /* Maximum events (Rx packets, etc.) to handle at each interrupt. */ |
| 117 | static int max_interrupt_work = 20; |
| 118 | |
| 119 | /* Maximum number of multicast addresses to filter (vs. Rx-all-multicast). |
| 120 | The RTL chips use a 64 element hash table based on the Ethernet CRC. */ |
| 121 | static int multicast_filter_limit = 32; |
| 122 | |
| 123 | /* MAC address length */ |
| 124 | #define MAC_ADDR_LEN 6 |
| 125 | |
| 126 | #define RX_FIFO_THRESH 7 /* 7 means NO threshold, Rx buffer level before first PCI xfer. */ |
| 127 | #define RX_DMA_BURST 6 /* Maximum PCI burst, '6' is 1024 */ |
| 128 | #define TX_DMA_BURST 6 /* Maximum PCI burst, '6' is 1024 */ |
| 129 | #define EarlyTxThld 0x3F /* 0x3F means NO early transmit */ |
| 130 | #define RxPacketMaxSize 0x3FE8 /* 16K - 1 - ETH_HLEN - VLAN - CRC... */ |
| 131 | #define SafeMtu 0x1c20 /* ... actually life sucks beyond ~7k */ |
| 132 | #define InterFrameGap 0x03 /* 3 means InterFrameGap = the shortest one */ |
| 133 | |
| 134 | #define R8169_REGS_SIZE 256 |
| 135 | #define R8169_NAPI_WEIGHT 64 |
| 136 | #define NUM_TX_DESC 64 /* Number of Tx descriptor registers */ |
| 137 | #define NUM_RX_DESC 256 /* Number of Rx descriptor registers */ |
| 138 | #define RX_BUF_SIZE 1536 /* Rx Buffer size */ |
| 139 | #define R8169_TX_RING_BYTES (NUM_TX_DESC * sizeof(struct TxDesc)) |
| 140 | #define R8169_RX_RING_BYTES (NUM_RX_DESC * sizeof(struct RxDesc)) |
| 141 | |
| 142 | #define RTL8169_TX_TIMEOUT (6*HZ) |
| 143 | #define RTL8169_PHY_TIMEOUT (10*HZ) |
| 144 | |
| 145 | /* write/read MMIO register */ |
| 146 | #define RTL_W8(reg, val8) writeb ((val8), ioaddr + (reg)) |
| 147 | #define RTL_W16(reg, val16) writew ((val16), ioaddr + (reg)) |
| 148 | #define RTL_W32(reg, val32) writel ((val32), ioaddr + (reg)) |
| 149 | #define RTL_R8(reg) readb (ioaddr + (reg)) |
| 150 | #define RTL_R16(reg) readw (ioaddr + (reg)) |
| 151 | #define RTL_R32(reg) ((unsigned long) readl (ioaddr + (reg))) |
| 152 | |
| 153 | enum mac_version { |
| 154 | RTL_GIGA_MAC_VER_B = 0x00, |
| 155 | /* RTL_GIGA_MAC_VER_C = 0x03, */ |
| 156 | RTL_GIGA_MAC_VER_D = 0x01, |
| 157 | RTL_GIGA_MAC_VER_E = 0x02, |
| 158 | RTL_GIGA_MAC_VER_X = 0x04 /* Greater than RTL_GIGA_MAC_VER_E */ |
| 159 | }; |
| 160 | |
| 161 | enum phy_version { |
| 162 | RTL_GIGA_PHY_VER_C = 0x03, /* PHY Reg 0x03 bit0-3 == 0x0000 */ |
| 163 | RTL_GIGA_PHY_VER_D = 0x04, /* PHY Reg 0x03 bit0-3 == 0x0000 */ |
| 164 | RTL_GIGA_PHY_VER_E = 0x05, /* PHY Reg 0x03 bit0-3 == 0x0000 */ |
| 165 | RTL_GIGA_PHY_VER_F = 0x06, /* PHY Reg 0x03 bit0-3 == 0x0001 */ |
| 166 | RTL_GIGA_PHY_VER_G = 0x07, /* PHY Reg 0x03 bit0-3 == 0x0002 */ |
| 167 | RTL_GIGA_PHY_VER_H = 0x08, /* PHY Reg 0x03 bit0-3 == 0x0003 */ |
| 168 | }; |
| 169 | |
| 170 | |
| 171 | #define _R(NAME,MAC,MASK) \ |
| 172 | { .name = NAME, .mac_version = MAC, .RxConfigMask = MASK } |
| 173 | |
| 174 | const static struct { |
| 175 | const char *name; |
| 176 | u8 mac_version; |
| 177 | u32 RxConfigMask; /* Clears the bits supported by this chip */ |
| 178 | } rtl_chip_info[] = { |
| 179 | _R("RTL8169", RTL_GIGA_MAC_VER_B, 0xff7e1880), |
| 180 | _R("RTL8169s/8110s", RTL_GIGA_MAC_VER_D, 0xff7e1880), |
| 181 | _R("RTL8169s/8110s", RTL_GIGA_MAC_VER_E, 0xff7e1880), |
| 182 | _R("RTL8169s/8110s", RTL_GIGA_MAC_VER_X, 0xff7e1880), |
| 183 | }; |
| 184 | #undef _R |
| 185 | |
| 186 | static struct pci_device_id rtl8169_pci_tbl[] = { |
Francois Romieu | 53456f6 | 2005-05-27 21:11:37 +0200 | [diff] [blame] | 187 | { PCI_DEVICE(PCI_VENDOR_ID_REALTEK, 0x8169), }, |
| 188 | { PCI_DEVICE(PCI_VENDOR_ID_DLINK, 0x4300), }, |
| 189 | { PCI_DEVICE(0x16ec, 0x0116), }, |
Francois Romieu | 86f0cd5 | 2005-08-24 01:14:23 +0200 | [diff] [blame] | 190 | { PCI_VENDOR_ID_LINKSYS, 0x1032, PCI_ANY_ID, 0x0024, }, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 191 | {0,}, |
| 192 | }; |
| 193 | |
| 194 | MODULE_DEVICE_TABLE(pci, rtl8169_pci_tbl); |
| 195 | |
| 196 | static int rx_copybreak = 200; |
| 197 | static int use_dac; |
Stephen Hemminger | b57b7e5 | 2005-05-27 21:11:52 +0200 | [diff] [blame] | 198 | static struct { |
| 199 | u32 msg_enable; |
| 200 | } debug = { -1 }; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 201 | |
| 202 | enum RTL8169_registers { |
| 203 | MAC0 = 0, /* Ethernet hardware address. */ |
| 204 | MAR0 = 8, /* Multicast filter. */ |
Stephen Hemminger | d4a3a0f | 2005-05-27 21:11:56 +0200 | [diff] [blame] | 205 | CounterAddrLow = 0x10, |
| 206 | CounterAddrHigh = 0x14, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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 | TBICSR = 0x64, |
| 230 | TBI_ANAR = 0x68, |
| 231 | TBI_LPAR = 0x6A, |
| 232 | PHYstatus = 0x6C, |
| 233 | RxMaxSize = 0xDA, |
| 234 | CPlusCmd = 0xE0, |
| 235 | IntrMitigate = 0xE2, |
| 236 | RxDescAddrLow = 0xE4, |
| 237 | RxDescAddrHigh = 0xE8, |
| 238 | EarlyTxThres = 0xEC, |
| 239 | FuncEvent = 0xF0, |
| 240 | FuncEventMask = 0xF4, |
| 241 | FuncPresetState = 0xF8, |
| 242 | FuncForceEvent = 0xFC, |
| 243 | }; |
| 244 | |
| 245 | enum RTL8169_register_content { |
| 246 | /* InterruptStatusBits */ |
| 247 | SYSErr = 0x8000, |
| 248 | PCSTimeout = 0x4000, |
| 249 | SWInt = 0x0100, |
| 250 | TxDescUnavail = 0x80, |
| 251 | RxFIFOOver = 0x40, |
| 252 | LinkChg = 0x20, |
| 253 | RxOverflow = 0x10, |
| 254 | TxErr = 0x08, |
| 255 | TxOK = 0x04, |
| 256 | RxErr = 0x02, |
| 257 | RxOK = 0x01, |
| 258 | |
| 259 | /* RxStatusDesc */ |
| 260 | RxRES = 0x00200000, |
| 261 | RxCRC = 0x00080000, |
| 262 | RxRUNT = 0x00100000, |
| 263 | RxRWT = 0x00400000, |
| 264 | |
| 265 | /* ChipCmdBits */ |
| 266 | CmdReset = 0x10, |
| 267 | CmdRxEnb = 0x08, |
| 268 | CmdTxEnb = 0x04, |
| 269 | RxBufEmpty = 0x01, |
| 270 | |
| 271 | /* Cfg9346Bits */ |
| 272 | Cfg9346_Lock = 0x00, |
| 273 | Cfg9346_Unlock = 0xC0, |
| 274 | |
| 275 | /* rx_mode_bits */ |
| 276 | AcceptErr = 0x20, |
| 277 | AcceptRunt = 0x10, |
| 278 | AcceptBroadcast = 0x08, |
| 279 | AcceptMulticast = 0x04, |
| 280 | AcceptMyPhys = 0x02, |
| 281 | AcceptAllPhys = 0x01, |
| 282 | |
| 283 | /* RxConfigBits */ |
| 284 | RxCfgFIFOShift = 13, |
| 285 | RxCfgDMAShift = 8, |
| 286 | |
| 287 | /* TxConfigBits */ |
| 288 | TxInterFrameGapShift = 24, |
| 289 | TxDMAShift = 8, /* DMA burst value (0-7) is shift this many bits */ |
| 290 | |
| 291 | /* TBICSR p.28 */ |
| 292 | TBIReset = 0x80000000, |
| 293 | TBILoopback = 0x40000000, |
| 294 | TBINwEnable = 0x20000000, |
| 295 | TBINwRestart = 0x10000000, |
| 296 | TBILinkOk = 0x02000000, |
| 297 | TBINwComplete = 0x01000000, |
| 298 | |
| 299 | /* CPlusCmd p.31 */ |
| 300 | RxVlan = (1 << 6), |
| 301 | RxChkSum = (1 << 5), |
| 302 | PCIDAC = (1 << 4), |
| 303 | PCIMulRW = (1 << 3), |
| 304 | |
| 305 | /* rtl8169_PHYstatus */ |
| 306 | TBI_Enable = 0x80, |
| 307 | TxFlowCtrl = 0x40, |
| 308 | RxFlowCtrl = 0x20, |
| 309 | _1000bpsF = 0x10, |
| 310 | _100bps = 0x08, |
| 311 | _10bps = 0x04, |
| 312 | LinkStatus = 0x02, |
| 313 | FullDup = 0x01, |
| 314 | |
| 315 | /* GIGABIT_PHY_registers */ |
| 316 | PHY_CTRL_REG = 0, |
| 317 | PHY_STAT_REG = 1, |
| 318 | PHY_AUTO_NEGO_REG = 4, |
| 319 | PHY_1000_CTRL_REG = 9, |
| 320 | |
| 321 | /* GIGABIT_PHY_REG_BIT */ |
| 322 | PHY_Restart_Auto_Nego = 0x0200, |
| 323 | PHY_Enable_Auto_Nego = 0x1000, |
| 324 | |
| 325 | /* PHY_STAT_REG = 1 */ |
| 326 | PHY_Auto_Neco_Comp = 0x0020, |
| 327 | |
| 328 | /* PHY_AUTO_NEGO_REG = 4 */ |
| 329 | PHY_Cap_10_Half = 0x0020, |
| 330 | PHY_Cap_10_Full = 0x0040, |
| 331 | PHY_Cap_100_Half = 0x0080, |
| 332 | PHY_Cap_100_Full = 0x0100, |
| 333 | |
| 334 | /* PHY_1000_CTRL_REG = 9 */ |
| 335 | PHY_Cap_1000_Full = 0x0200, |
| 336 | |
| 337 | PHY_Cap_Null = 0x0, |
| 338 | |
| 339 | /* _MediaType */ |
| 340 | _10_Half = 0x01, |
| 341 | _10_Full = 0x02, |
| 342 | _100_Half = 0x04, |
| 343 | _100_Full = 0x08, |
| 344 | _1000_Full = 0x10, |
| 345 | |
| 346 | /* _TBICSRBit */ |
| 347 | TBILinkOK = 0x02000000, |
Stephen Hemminger | d4a3a0f | 2005-05-27 21:11:56 +0200 | [diff] [blame] | 348 | |
| 349 | /* DumpCounterCommand */ |
| 350 | CounterDump = 0x8, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 351 | }; |
| 352 | |
| 353 | enum _DescStatusBit { |
| 354 | DescOwn = (1 << 31), /* Descriptor is owned by NIC */ |
| 355 | RingEnd = (1 << 30), /* End of descriptor ring */ |
| 356 | FirstFrag = (1 << 29), /* First segment of a packet */ |
| 357 | LastFrag = (1 << 28), /* Final segment of a packet */ |
| 358 | |
| 359 | /* Tx private */ |
| 360 | LargeSend = (1 << 27), /* TCP Large Send Offload (TSO) */ |
| 361 | MSSShift = 16, /* MSS value position */ |
| 362 | MSSMask = 0xfff, /* MSS value + LargeSend bit: 12 bits */ |
| 363 | IPCS = (1 << 18), /* Calculate IP checksum */ |
| 364 | UDPCS = (1 << 17), /* Calculate UDP/IP checksum */ |
| 365 | TCPCS = (1 << 16), /* Calculate TCP/IP checksum */ |
| 366 | TxVlanTag = (1 << 17), /* Add VLAN tag */ |
| 367 | |
| 368 | /* Rx private */ |
| 369 | PID1 = (1 << 18), /* Protocol ID bit 1/2 */ |
| 370 | PID0 = (1 << 17), /* Protocol ID bit 2/2 */ |
| 371 | |
| 372 | #define RxProtoUDP (PID1) |
| 373 | #define RxProtoTCP (PID0) |
| 374 | #define RxProtoIP (PID1 | PID0) |
| 375 | #define RxProtoMask RxProtoIP |
| 376 | |
| 377 | IPFail = (1 << 16), /* IP checksum failed */ |
| 378 | UDPFail = (1 << 15), /* UDP/IP checksum failed */ |
| 379 | TCPFail = (1 << 14), /* TCP/IP checksum failed */ |
| 380 | RxVlanTag = (1 << 16), /* VLAN tag available */ |
| 381 | }; |
| 382 | |
| 383 | #define RsvdMask 0x3fffc000 |
| 384 | |
| 385 | struct TxDesc { |
| 386 | u32 opts1; |
| 387 | u32 opts2; |
| 388 | u64 addr; |
| 389 | }; |
| 390 | |
| 391 | struct RxDesc { |
| 392 | u32 opts1; |
| 393 | u32 opts2; |
| 394 | u64 addr; |
| 395 | }; |
| 396 | |
| 397 | struct ring_info { |
| 398 | struct sk_buff *skb; |
| 399 | u32 len; |
| 400 | u8 __pad[sizeof(void *) - sizeof(u32)]; |
| 401 | }; |
| 402 | |
| 403 | struct rtl8169_private { |
| 404 | void __iomem *mmio_addr; /* memory map physical address */ |
| 405 | struct pci_dev *pci_dev; /* Index of PCI device */ |
| 406 | struct net_device_stats stats; /* statistics of net device */ |
| 407 | spinlock_t lock; /* spin lock flag */ |
Stephen Hemminger | b57b7e5 | 2005-05-27 21:11:52 +0200 | [diff] [blame] | 408 | u32 msg_enable; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 409 | int chipset; |
| 410 | int mac_version; |
| 411 | int phy_version; |
| 412 | u32 cur_rx; /* Index into the Rx descriptor buffer of next Rx pkt. */ |
| 413 | u32 cur_tx; /* Index into the Tx descriptor buffer of next Rx pkt. */ |
| 414 | u32 dirty_rx; |
| 415 | u32 dirty_tx; |
| 416 | struct TxDesc *TxDescArray; /* 256-aligned Tx descriptor ring */ |
| 417 | struct RxDesc *RxDescArray; /* 256-aligned Rx descriptor ring */ |
| 418 | dma_addr_t TxPhyAddr; |
| 419 | dma_addr_t RxPhyAddr; |
| 420 | struct sk_buff *Rx_skbuff[NUM_RX_DESC]; /* Rx data buffers */ |
| 421 | struct ring_info tx_skb[NUM_TX_DESC]; /* Tx data buffers */ |
| 422 | unsigned rx_buf_sz; |
| 423 | struct timer_list timer; |
| 424 | u16 cp_cmd; |
| 425 | u16 intr_mask; |
| 426 | int phy_auto_nego_reg; |
| 427 | int phy_1000_ctrl_reg; |
| 428 | #ifdef CONFIG_R8169_VLAN |
| 429 | struct vlan_group *vlgrp; |
| 430 | #endif |
| 431 | int (*set_speed)(struct net_device *, u8 autoneg, u16 speed, u8 duplex); |
| 432 | void (*get_settings)(struct net_device *, struct ethtool_cmd *); |
| 433 | void (*phy_reset_enable)(void __iomem *); |
| 434 | unsigned int (*phy_reset_pending)(void __iomem *); |
| 435 | unsigned int (*link_ok)(void __iomem *); |
| 436 | struct work_struct task; |
| 437 | }; |
| 438 | |
Ralf Baechle | 979b6c1 | 2005-06-13 14:30:40 -0700 | [diff] [blame] | 439 | MODULE_AUTHOR("Realtek and the Linux r8169 crew <netdev@vger.kernel.org>"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 440 | MODULE_DESCRIPTION("RealTek RTL-8169 Gigabit Ethernet driver"); |
| 441 | module_param_array(media, int, &num_media, 0); |
Francois Romieu | df0a1bf | 2005-05-27 21:11:49 +0200 | [diff] [blame] | 442 | MODULE_PARM_DESC(media, "force phy operation. Deprecated by ethtool (8)."); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 443 | module_param(rx_copybreak, int, 0); |
Stephen Hemminger | 1b7efd5 | 2005-05-27 21:11:45 +0200 | [diff] [blame] | 444 | MODULE_PARM_DESC(rx_copybreak, "Copy breakpoint for copy-only-tiny-frames"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 445 | module_param(use_dac, int, 0); |
| 446 | MODULE_PARM_DESC(use_dac, "Enable PCI DAC. Unsafe on 32 bit PCI slot."); |
Stephen Hemminger | b57b7e5 | 2005-05-27 21:11:52 +0200 | [diff] [blame] | 447 | module_param_named(debug, debug.msg_enable, int, 0); |
| 448 | MODULE_PARM_DESC(debug, "Debug verbosity level (0=none, ..., 16=all)"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 449 | MODULE_LICENSE("GPL"); |
| 450 | MODULE_VERSION(RTL8169_VERSION); |
| 451 | |
| 452 | static int rtl8169_open(struct net_device *dev); |
| 453 | static int rtl8169_start_xmit(struct sk_buff *skb, struct net_device *dev); |
| 454 | static irqreturn_t rtl8169_interrupt(int irq, void *dev_instance, |
| 455 | struct pt_regs *regs); |
| 456 | static int rtl8169_init_ring(struct net_device *dev); |
| 457 | static void rtl8169_hw_start(struct net_device *dev); |
| 458 | static int rtl8169_close(struct net_device *dev); |
| 459 | static void rtl8169_set_rx_mode(struct net_device *dev); |
| 460 | static void rtl8169_tx_timeout(struct net_device *dev); |
Richard Dawe | 4dcb7d3 | 2005-05-27 21:12:00 +0200 | [diff] [blame] | 461 | static struct net_device_stats *rtl8169_get_stats(struct net_device *dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 462 | static int rtl8169_rx_interrupt(struct net_device *, struct rtl8169_private *, |
| 463 | void __iomem *); |
Richard Dawe | 4dcb7d3 | 2005-05-27 21:12:00 +0200 | [diff] [blame] | 464 | static int rtl8169_change_mtu(struct net_device *dev, int new_mtu); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 465 | static void rtl8169_down(struct net_device *dev); |
| 466 | |
| 467 | #ifdef CONFIG_R8169_NAPI |
| 468 | static int rtl8169_poll(struct net_device *dev, int *budget); |
| 469 | #endif |
| 470 | |
| 471 | static const u16 rtl8169_intr_mask = |
| 472 | SYSErr | LinkChg | RxOverflow | RxFIFOOver | TxErr | TxOK | RxErr | RxOK; |
| 473 | static const u16 rtl8169_napi_event = |
| 474 | RxOK | RxOverflow | RxFIFOOver | TxOK | TxErr; |
| 475 | static const unsigned int rtl8169_rx_config = |
| 476 | (RX_FIFO_THRESH << RxCfgFIFOShift) | (RX_DMA_BURST << RxCfgDMAShift); |
| 477 | |
| 478 | #define PHY_Cap_10_Half_Or_Less PHY_Cap_10_Half |
| 479 | #define PHY_Cap_10_Full_Or_Less PHY_Cap_10_Full | PHY_Cap_10_Half_Or_Less |
| 480 | #define PHY_Cap_100_Half_Or_Less PHY_Cap_100_Half | PHY_Cap_10_Full_Or_Less |
| 481 | #define PHY_Cap_100_Full_Or_Less PHY_Cap_100_Full | PHY_Cap_100_Half_Or_Less |
| 482 | |
| 483 | static void mdio_write(void __iomem *ioaddr, int RegAddr, int value) |
| 484 | { |
| 485 | int i; |
| 486 | |
| 487 | RTL_W32(PHYAR, 0x80000000 | (RegAddr & 0xFF) << 16 | value); |
| 488 | udelay(1000); |
| 489 | |
| 490 | for (i = 2000; i > 0; i--) { |
| 491 | /* Check if the RTL8169 has completed writing to the specified MII register */ |
| 492 | if (!(RTL_R32(PHYAR) & 0x80000000)) |
| 493 | break; |
| 494 | udelay(100); |
| 495 | } |
| 496 | } |
| 497 | |
| 498 | static int mdio_read(void __iomem *ioaddr, int RegAddr) |
| 499 | { |
| 500 | int i, value = -1; |
| 501 | |
| 502 | RTL_W32(PHYAR, 0x0 | (RegAddr & 0xFF) << 16); |
| 503 | udelay(1000); |
| 504 | |
| 505 | for (i = 2000; i > 0; i--) { |
| 506 | /* Check if the RTL8169 has completed retrieving data from the specified MII register */ |
| 507 | if (RTL_R32(PHYAR) & 0x80000000) { |
| 508 | value = (int) (RTL_R32(PHYAR) & 0xFFFF); |
| 509 | break; |
| 510 | } |
| 511 | udelay(100); |
| 512 | } |
| 513 | return value; |
| 514 | } |
| 515 | |
| 516 | static void rtl8169_irq_mask_and_ack(void __iomem *ioaddr) |
| 517 | { |
| 518 | RTL_W16(IntrMask, 0x0000); |
| 519 | |
| 520 | RTL_W16(IntrStatus, 0xffff); |
| 521 | } |
| 522 | |
| 523 | static void rtl8169_asic_down(void __iomem *ioaddr) |
| 524 | { |
| 525 | RTL_W8(ChipCmd, 0x00); |
| 526 | rtl8169_irq_mask_and_ack(ioaddr); |
| 527 | RTL_R16(CPlusCmd); |
| 528 | } |
| 529 | |
| 530 | static unsigned int rtl8169_tbi_reset_pending(void __iomem *ioaddr) |
| 531 | { |
| 532 | return RTL_R32(TBICSR) & TBIReset; |
| 533 | } |
| 534 | |
| 535 | static unsigned int rtl8169_xmii_reset_pending(void __iomem *ioaddr) |
| 536 | { |
| 537 | return mdio_read(ioaddr, 0) & 0x8000; |
| 538 | } |
| 539 | |
| 540 | static unsigned int rtl8169_tbi_link_ok(void __iomem *ioaddr) |
| 541 | { |
| 542 | return RTL_R32(TBICSR) & TBILinkOk; |
| 543 | } |
| 544 | |
| 545 | static unsigned int rtl8169_xmii_link_ok(void __iomem *ioaddr) |
| 546 | { |
| 547 | return RTL_R8(PHYstatus) & LinkStatus; |
| 548 | } |
| 549 | |
| 550 | static void rtl8169_tbi_reset_enable(void __iomem *ioaddr) |
| 551 | { |
| 552 | RTL_W32(TBICSR, RTL_R32(TBICSR) | TBIReset); |
| 553 | } |
| 554 | |
| 555 | static void rtl8169_xmii_reset_enable(void __iomem *ioaddr) |
| 556 | { |
| 557 | unsigned int val; |
| 558 | |
| 559 | val = (mdio_read(ioaddr, PHY_CTRL_REG) | 0x8000) & 0xffff; |
| 560 | mdio_write(ioaddr, PHY_CTRL_REG, val); |
| 561 | } |
| 562 | |
| 563 | static void rtl8169_check_link_status(struct net_device *dev, |
| 564 | struct rtl8169_private *tp, void __iomem *ioaddr) |
| 565 | { |
| 566 | unsigned long flags; |
| 567 | |
| 568 | spin_lock_irqsave(&tp->lock, flags); |
| 569 | if (tp->link_ok(ioaddr)) { |
| 570 | netif_carrier_on(dev); |
Stephen Hemminger | b57b7e5 | 2005-05-27 21:11:52 +0200 | [diff] [blame] | 571 | if (netif_msg_ifup(tp)) |
| 572 | printk(KERN_INFO PFX "%s: link up\n", dev->name); |
| 573 | } else { |
| 574 | if (netif_msg_ifdown(tp)) |
| 575 | printk(KERN_INFO PFX "%s: link down\n", dev->name); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 576 | netif_carrier_off(dev); |
Stephen Hemminger | b57b7e5 | 2005-05-27 21:11:52 +0200 | [diff] [blame] | 577 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 578 | spin_unlock_irqrestore(&tp->lock, flags); |
| 579 | } |
| 580 | |
| 581 | static void rtl8169_link_option(int idx, u8 *autoneg, u16 *speed, u8 *duplex) |
| 582 | { |
| 583 | struct { |
| 584 | u16 speed; |
| 585 | u8 duplex; |
| 586 | u8 autoneg; |
| 587 | u8 media; |
| 588 | } link_settings[] = { |
| 589 | { SPEED_10, DUPLEX_HALF, AUTONEG_DISABLE, _10_Half }, |
| 590 | { SPEED_10, DUPLEX_FULL, AUTONEG_DISABLE, _10_Full }, |
| 591 | { SPEED_100, DUPLEX_HALF, AUTONEG_DISABLE, _100_Half }, |
| 592 | { SPEED_100, DUPLEX_FULL, AUTONEG_DISABLE, _100_Full }, |
| 593 | { SPEED_1000, DUPLEX_FULL, AUTONEG_DISABLE, _1000_Full }, |
| 594 | /* Make TBI happy */ |
| 595 | { SPEED_1000, DUPLEX_FULL, AUTONEG_ENABLE, 0xff } |
| 596 | }, *p; |
| 597 | unsigned char option; |
| 598 | |
| 599 | option = ((idx < MAX_UNITS) && (idx >= 0)) ? media[idx] : 0xff; |
| 600 | |
Stephen Hemminger | b57b7e5 | 2005-05-27 21:11:52 +0200 | [diff] [blame] | 601 | if ((option != 0xff) && !idx && netif_msg_drv(&debug)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 602 | printk(KERN_WARNING PFX "media option is deprecated.\n"); |
| 603 | |
| 604 | for (p = link_settings; p->media != 0xff; p++) { |
| 605 | if (p->media == option) |
| 606 | break; |
| 607 | } |
| 608 | *autoneg = p->autoneg; |
| 609 | *speed = p->speed; |
| 610 | *duplex = p->duplex; |
| 611 | } |
| 612 | |
| 613 | static void rtl8169_get_drvinfo(struct net_device *dev, |
| 614 | struct ethtool_drvinfo *info) |
| 615 | { |
| 616 | struct rtl8169_private *tp = netdev_priv(dev); |
| 617 | |
| 618 | strcpy(info->driver, MODULENAME); |
| 619 | strcpy(info->version, RTL8169_VERSION); |
| 620 | strcpy(info->bus_info, pci_name(tp->pci_dev)); |
| 621 | } |
| 622 | |
| 623 | static int rtl8169_get_regs_len(struct net_device *dev) |
| 624 | { |
| 625 | return R8169_REGS_SIZE; |
| 626 | } |
| 627 | |
| 628 | static int rtl8169_set_speed_tbi(struct net_device *dev, |
| 629 | u8 autoneg, u16 speed, u8 duplex) |
| 630 | { |
| 631 | struct rtl8169_private *tp = netdev_priv(dev); |
| 632 | void __iomem *ioaddr = tp->mmio_addr; |
| 633 | int ret = 0; |
| 634 | u32 reg; |
| 635 | |
| 636 | reg = RTL_R32(TBICSR); |
| 637 | if ((autoneg == AUTONEG_DISABLE) && (speed == SPEED_1000) && |
| 638 | (duplex == DUPLEX_FULL)) { |
| 639 | RTL_W32(TBICSR, reg & ~(TBINwEnable | TBINwRestart)); |
| 640 | } else if (autoneg == AUTONEG_ENABLE) |
| 641 | RTL_W32(TBICSR, reg | TBINwEnable | TBINwRestart); |
| 642 | else { |
Stephen Hemminger | b57b7e5 | 2005-05-27 21:11:52 +0200 | [diff] [blame] | 643 | if (netif_msg_link(tp)) { |
| 644 | printk(KERN_WARNING "%s: " |
| 645 | "incorrect speed setting refused in TBI mode\n", |
| 646 | dev->name); |
| 647 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 648 | ret = -EOPNOTSUPP; |
| 649 | } |
| 650 | |
| 651 | return ret; |
| 652 | } |
| 653 | |
| 654 | static int rtl8169_set_speed_xmii(struct net_device *dev, |
| 655 | u8 autoneg, u16 speed, u8 duplex) |
| 656 | { |
| 657 | struct rtl8169_private *tp = netdev_priv(dev); |
| 658 | void __iomem *ioaddr = tp->mmio_addr; |
| 659 | int auto_nego, giga_ctrl; |
| 660 | |
| 661 | auto_nego = mdio_read(ioaddr, PHY_AUTO_NEGO_REG); |
| 662 | auto_nego &= ~(PHY_Cap_10_Half | PHY_Cap_10_Full | |
| 663 | PHY_Cap_100_Half | PHY_Cap_100_Full); |
| 664 | giga_ctrl = mdio_read(ioaddr, PHY_1000_CTRL_REG); |
| 665 | giga_ctrl &= ~(PHY_Cap_1000_Full | PHY_Cap_Null); |
| 666 | |
| 667 | if (autoneg == AUTONEG_ENABLE) { |
| 668 | auto_nego |= (PHY_Cap_10_Half | PHY_Cap_10_Full | |
| 669 | PHY_Cap_100_Half | PHY_Cap_100_Full); |
| 670 | giga_ctrl |= PHY_Cap_1000_Full; |
| 671 | } else { |
| 672 | if (speed == SPEED_10) |
| 673 | auto_nego |= PHY_Cap_10_Half | PHY_Cap_10_Full; |
| 674 | else if (speed == SPEED_100) |
| 675 | auto_nego |= PHY_Cap_100_Half | PHY_Cap_100_Full; |
| 676 | else if (speed == SPEED_1000) |
| 677 | giga_ctrl |= PHY_Cap_1000_Full; |
| 678 | |
| 679 | if (duplex == DUPLEX_HALF) |
| 680 | auto_nego &= ~(PHY_Cap_10_Full | PHY_Cap_100_Full); |
| 681 | } |
| 682 | |
| 683 | tp->phy_auto_nego_reg = auto_nego; |
| 684 | tp->phy_1000_ctrl_reg = giga_ctrl; |
| 685 | |
| 686 | mdio_write(ioaddr, PHY_AUTO_NEGO_REG, auto_nego); |
| 687 | mdio_write(ioaddr, PHY_1000_CTRL_REG, giga_ctrl); |
| 688 | mdio_write(ioaddr, PHY_CTRL_REG, PHY_Enable_Auto_Nego | |
| 689 | PHY_Restart_Auto_Nego); |
| 690 | return 0; |
| 691 | } |
| 692 | |
| 693 | static int rtl8169_set_speed(struct net_device *dev, |
| 694 | u8 autoneg, u16 speed, u8 duplex) |
| 695 | { |
| 696 | struct rtl8169_private *tp = netdev_priv(dev); |
| 697 | int ret; |
| 698 | |
| 699 | ret = tp->set_speed(dev, autoneg, speed, duplex); |
| 700 | |
| 701 | if (netif_running(dev) && (tp->phy_1000_ctrl_reg & PHY_Cap_1000_Full)) |
| 702 | mod_timer(&tp->timer, jiffies + RTL8169_PHY_TIMEOUT); |
| 703 | |
| 704 | return ret; |
| 705 | } |
| 706 | |
| 707 | static int rtl8169_set_settings(struct net_device *dev, struct ethtool_cmd *cmd) |
| 708 | { |
| 709 | struct rtl8169_private *tp = netdev_priv(dev); |
| 710 | unsigned long flags; |
| 711 | int ret; |
| 712 | |
| 713 | spin_lock_irqsave(&tp->lock, flags); |
| 714 | ret = rtl8169_set_speed(dev, cmd->autoneg, cmd->speed, cmd->duplex); |
| 715 | spin_unlock_irqrestore(&tp->lock, flags); |
| 716 | |
| 717 | return ret; |
| 718 | } |
| 719 | |
| 720 | static u32 rtl8169_get_rx_csum(struct net_device *dev) |
| 721 | { |
| 722 | struct rtl8169_private *tp = netdev_priv(dev); |
| 723 | |
| 724 | return tp->cp_cmd & RxChkSum; |
| 725 | } |
| 726 | |
| 727 | static int rtl8169_set_rx_csum(struct net_device *dev, u32 data) |
| 728 | { |
| 729 | struct rtl8169_private *tp = netdev_priv(dev); |
| 730 | void __iomem *ioaddr = tp->mmio_addr; |
| 731 | unsigned long flags; |
| 732 | |
| 733 | spin_lock_irqsave(&tp->lock, flags); |
| 734 | |
| 735 | if (data) |
| 736 | tp->cp_cmd |= RxChkSum; |
| 737 | else |
| 738 | tp->cp_cmd &= ~RxChkSum; |
| 739 | |
| 740 | RTL_W16(CPlusCmd, tp->cp_cmd); |
| 741 | RTL_R16(CPlusCmd); |
| 742 | |
| 743 | spin_unlock_irqrestore(&tp->lock, flags); |
| 744 | |
| 745 | return 0; |
| 746 | } |
| 747 | |
| 748 | #ifdef CONFIG_R8169_VLAN |
| 749 | |
| 750 | static inline u32 rtl8169_tx_vlan_tag(struct rtl8169_private *tp, |
| 751 | struct sk_buff *skb) |
| 752 | { |
| 753 | return (tp->vlgrp && vlan_tx_tag_present(skb)) ? |
| 754 | TxVlanTag | swab16(vlan_tx_tag_get(skb)) : 0x00; |
| 755 | } |
| 756 | |
| 757 | static void rtl8169_vlan_rx_register(struct net_device *dev, |
| 758 | struct vlan_group *grp) |
| 759 | { |
| 760 | struct rtl8169_private *tp = netdev_priv(dev); |
| 761 | void __iomem *ioaddr = tp->mmio_addr; |
| 762 | unsigned long flags; |
| 763 | |
| 764 | spin_lock_irqsave(&tp->lock, flags); |
| 765 | tp->vlgrp = grp; |
| 766 | if (tp->vlgrp) |
| 767 | tp->cp_cmd |= RxVlan; |
| 768 | else |
| 769 | tp->cp_cmd &= ~RxVlan; |
| 770 | RTL_W16(CPlusCmd, tp->cp_cmd); |
| 771 | RTL_R16(CPlusCmd); |
| 772 | spin_unlock_irqrestore(&tp->lock, flags); |
| 773 | } |
| 774 | |
| 775 | static void rtl8169_vlan_rx_kill_vid(struct net_device *dev, unsigned short vid) |
| 776 | { |
| 777 | struct rtl8169_private *tp = netdev_priv(dev); |
| 778 | unsigned long flags; |
| 779 | |
| 780 | spin_lock_irqsave(&tp->lock, flags); |
| 781 | if (tp->vlgrp) |
| 782 | tp->vlgrp->vlan_devices[vid] = NULL; |
| 783 | spin_unlock_irqrestore(&tp->lock, flags); |
| 784 | } |
| 785 | |
| 786 | static int rtl8169_rx_vlan_skb(struct rtl8169_private *tp, struct RxDesc *desc, |
| 787 | struct sk_buff *skb) |
| 788 | { |
| 789 | u32 opts2 = le32_to_cpu(desc->opts2); |
| 790 | int ret; |
| 791 | |
| 792 | if (tp->vlgrp && (opts2 & RxVlanTag)) { |
| 793 | rtl8169_rx_hwaccel_skb(skb, tp->vlgrp, |
| 794 | swab16(opts2 & 0xffff)); |
| 795 | ret = 0; |
| 796 | } else |
| 797 | ret = -1; |
| 798 | desc->opts2 = 0; |
| 799 | return ret; |
| 800 | } |
| 801 | |
| 802 | #else /* !CONFIG_R8169_VLAN */ |
| 803 | |
| 804 | static inline u32 rtl8169_tx_vlan_tag(struct rtl8169_private *tp, |
| 805 | struct sk_buff *skb) |
| 806 | { |
| 807 | return 0; |
| 808 | } |
| 809 | |
| 810 | static int rtl8169_rx_vlan_skb(struct rtl8169_private *tp, struct RxDesc *desc, |
| 811 | struct sk_buff *skb) |
| 812 | { |
| 813 | return -1; |
| 814 | } |
| 815 | |
| 816 | #endif |
| 817 | |
| 818 | static void rtl8169_gset_tbi(struct net_device *dev, struct ethtool_cmd *cmd) |
| 819 | { |
| 820 | struct rtl8169_private *tp = netdev_priv(dev); |
| 821 | void __iomem *ioaddr = tp->mmio_addr; |
| 822 | u32 status; |
| 823 | |
| 824 | cmd->supported = |
| 825 | SUPPORTED_1000baseT_Full | SUPPORTED_Autoneg | SUPPORTED_FIBRE; |
| 826 | cmd->port = PORT_FIBRE; |
| 827 | cmd->transceiver = XCVR_INTERNAL; |
| 828 | |
| 829 | status = RTL_R32(TBICSR); |
| 830 | cmd->advertising = (status & TBINwEnable) ? ADVERTISED_Autoneg : 0; |
| 831 | cmd->autoneg = !!(status & TBINwEnable); |
| 832 | |
| 833 | cmd->speed = SPEED_1000; |
| 834 | cmd->duplex = DUPLEX_FULL; /* Always set */ |
| 835 | } |
| 836 | |
| 837 | static void rtl8169_gset_xmii(struct net_device *dev, struct ethtool_cmd *cmd) |
| 838 | { |
| 839 | struct rtl8169_private *tp = netdev_priv(dev); |
| 840 | void __iomem *ioaddr = tp->mmio_addr; |
| 841 | u8 status; |
| 842 | |
| 843 | cmd->supported = SUPPORTED_10baseT_Half | |
| 844 | SUPPORTED_10baseT_Full | |
| 845 | SUPPORTED_100baseT_Half | |
| 846 | SUPPORTED_100baseT_Full | |
| 847 | SUPPORTED_1000baseT_Full | |
| 848 | SUPPORTED_Autoneg | |
| 849 | SUPPORTED_TP; |
| 850 | |
| 851 | cmd->autoneg = 1; |
| 852 | cmd->advertising = ADVERTISED_TP | ADVERTISED_Autoneg; |
| 853 | |
| 854 | if (tp->phy_auto_nego_reg & PHY_Cap_10_Half) |
| 855 | cmd->advertising |= ADVERTISED_10baseT_Half; |
| 856 | if (tp->phy_auto_nego_reg & PHY_Cap_10_Full) |
| 857 | cmd->advertising |= ADVERTISED_10baseT_Full; |
| 858 | if (tp->phy_auto_nego_reg & PHY_Cap_100_Half) |
| 859 | cmd->advertising |= ADVERTISED_100baseT_Half; |
| 860 | if (tp->phy_auto_nego_reg & PHY_Cap_100_Full) |
| 861 | cmd->advertising |= ADVERTISED_100baseT_Full; |
| 862 | if (tp->phy_1000_ctrl_reg & PHY_Cap_1000_Full) |
| 863 | cmd->advertising |= ADVERTISED_1000baseT_Full; |
| 864 | |
| 865 | status = RTL_R8(PHYstatus); |
| 866 | |
| 867 | if (status & _1000bpsF) |
| 868 | cmd->speed = SPEED_1000; |
| 869 | else if (status & _100bps) |
| 870 | cmd->speed = SPEED_100; |
| 871 | else if (status & _10bps) |
| 872 | cmd->speed = SPEED_10; |
| 873 | |
| 874 | cmd->duplex = ((status & _1000bpsF) || (status & FullDup)) ? |
| 875 | DUPLEX_FULL : DUPLEX_HALF; |
| 876 | } |
| 877 | |
| 878 | static int rtl8169_get_settings(struct net_device *dev, struct ethtool_cmd *cmd) |
| 879 | { |
| 880 | struct rtl8169_private *tp = netdev_priv(dev); |
| 881 | unsigned long flags; |
| 882 | |
| 883 | spin_lock_irqsave(&tp->lock, flags); |
| 884 | |
| 885 | tp->get_settings(dev, cmd); |
| 886 | |
| 887 | spin_unlock_irqrestore(&tp->lock, flags); |
| 888 | return 0; |
| 889 | } |
| 890 | |
| 891 | static void rtl8169_get_regs(struct net_device *dev, struct ethtool_regs *regs, |
| 892 | void *p) |
| 893 | { |
| 894 | struct rtl8169_private *tp = netdev_priv(dev); |
| 895 | unsigned long flags; |
| 896 | |
| 897 | if (regs->len > R8169_REGS_SIZE) |
| 898 | regs->len = R8169_REGS_SIZE; |
| 899 | |
| 900 | spin_lock_irqsave(&tp->lock, flags); |
| 901 | memcpy_fromio(p, tp->mmio_addr, regs->len); |
| 902 | spin_unlock_irqrestore(&tp->lock, flags); |
| 903 | } |
| 904 | |
Stephen Hemminger | b57b7e5 | 2005-05-27 21:11:52 +0200 | [diff] [blame] | 905 | static u32 rtl8169_get_msglevel(struct net_device *dev) |
| 906 | { |
| 907 | struct rtl8169_private *tp = netdev_priv(dev); |
| 908 | |
| 909 | return tp->msg_enable; |
| 910 | } |
| 911 | |
| 912 | static void rtl8169_set_msglevel(struct net_device *dev, u32 value) |
| 913 | { |
| 914 | struct rtl8169_private *tp = netdev_priv(dev); |
| 915 | |
| 916 | tp->msg_enable = value; |
| 917 | } |
| 918 | |
Stephen Hemminger | d4a3a0f | 2005-05-27 21:11:56 +0200 | [diff] [blame] | 919 | static const char rtl8169_gstrings[][ETH_GSTRING_LEN] = { |
| 920 | "tx_packets", |
| 921 | "rx_packets", |
| 922 | "tx_errors", |
| 923 | "rx_errors", |
| 924 | "rx_missed", |
| 925 | "align_errors", |
| 926 | "tx_single_collisions", |
| 927 | "tx_multi_collisions", |
| 928 | "unicast", |
| 929 | "broadcast", |
| 930 | "multicast", |
| 931 | "tx_aborted", |
| 932 | "tx_underrun", |
| 933 | }; |
| 934 | |
| 935 | struct rtl8169_counters { |
| 936 | u64 tx_packets; |
| 937 | u64 rx_packets; |
| 938 | u64 tx_errors; |
| 939 | u32 rx_errors; |
| 940 | u16 rx_missed; |
| 941 | u16 align_errors; |
| 942 | u32 tx_one_collision; |
| 943 | u32 tx_multi_collision; |
| 944 | u64 rx_unicast; |
| 945 | u64 rx_broadcast; |
| 946 | u32 rx_multicast; |
| 947 | u16 tx_aborted; |
| 948 | u16 tx_underun; |
| 949 | }; |
| 950 | |
| 951 | static int rtl8169_get_stats_count(struct net_device *dev) |
| 952 | { |
| 953 | return ARRAY_SIZE(rtl8169_gstrings); |
| 954 | } |
| 955 | |
| 956 | static void rtl8169_get_ethtool_stats(struct net_device *dev, |
| 957 | struct ethtool_stats *stats, u64 *data) |
| 958 | { |
| 959 | struct rtl8169_private *tp = netdev_priv(dev); |
| 960 | void __iomem *ioaddr = tp->mmio_addr; |
| 961 | struct rtl8169_counters *counters; |
| 962 | dma_addr_t paddr; |
| 963 | u32 cmd; |
| 964 | |
| 965 | ASSERT_RTNL(); |
| 966 | |
| 967 | counters = pci_alloc_consistent(tp->pci_dev, sizeof(*counters), &paddr); |
| 968 | if (!counters) |
| 969 | return; |
| 970 | |
| 971 | RTL_W32(CounterAddrHigh, (u64)paddr >> 32); |
| 972 | cmd = (u64)paddr & DMA_32BIT_MASK; |
| 973 | RTL_W32(CounterAddrLow, cmd); |
| 974 | RTL_W32(CounterAddrLow, cmd | CounterDump); |
| 975 | |
| 976 | while (RTL_R32(CounterAddrLow) & CounterDump) { |
| 977 | if (msleep_interruptible(1)) |
| 978 | break; |
| 979 | } |
| 980 | |
| 981 | RTL_W32(CounterAddrLow, 0); |
| 982 | RTL_W32(CounterAddrHigh, 0); |
| 983 | |
| 984 | data[0] = le64_to_cpu(counters->tx_packets); |
| 985 | data[1] = le64_to_cpu(counters->rx_packets); |
| 986 | data[2] = le64_to_cpu(counters->tx_errors); |
| 987 | data[3] = le32_to_cpu(counters->rx_errors); |
| 988 | data[4] = le16_to_cpu(counters->rx_missed); |
| 989 | data[5] = le16_to_cpu(counters->align_errors); |
| 990 | data[6] = le32_to_cpu(counters->tx_one_collision); |
| 991 | data[7] = le32_to_cpu(counters->tx_multi_collision); |
| 992 | data[8] = le64_to_cpu(counters->rx_unicast); |
| 993 | data[9] = le64_to_cpu(counters->rx_broadcast); |
| 994 | data[10] = le32_to_cpu(counters->rx_multicast); |
| 995 | data[11] = le16_to_cpu(counters->tx_aborted); |
| 996 | data[12] = le16_to_cpu(counters->tx_underun); |
| 997 | |
| 998 | pci_free_consistent(tp->pci_dev, sizeof(*counters), counters, paddr); |
| 999 | } |
| 1000 | |
| 1001 | static void rtl8169_get_strings(struct net_device *dev, u32 stringset, u8 *data) |
| 1002 | { |
| 1003 | switch(stringset) { |
| 1004 | case ETH_SS_STATS: |
| 1005 | memcpy(data, *rtl8169_gstrings, sizeof(rtl8169_gstrings)); |
| 1006 | break; |
| 1007 | } |
| 1008 | } |
| 1009 | |
| 1010 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1011 | static struct ethtool_ops rtl8169_ethtool_ops = { |
| 1012 | .get_drvinfo = rtl8169_get_drvinfo, |
| 1013 | .get_regs_len = rtl8169_get_regs_len, |
| 1014 | .get_link = ethtool_op_get_link, |
| 1015 | .get_settings = rtl8169_get_settings, |
| 1016 | .set_settings = rtl8169_set_settings, |
Stephen Hemminger | b57b7e5 | 2005-05-27 21:11:52 +0200 | [diff] [blame] | 1017 | .get_msglevel = rtl8169_get_msglevel, |
| 1018 | .set_msglevel = rtl8169_set_msglevel, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1019 | .get_rx_csum = rtl8169_get_rx_csum, |
| 1020 | .set_rx_csum = rtl8169_set_rx_csum, |
| 1021 | .get_tx_csum = ethtool_op_get_tx_csum, |
| 1022 | .set_tx_csum = ethtool_op_set_tx_csum, |
| 1023 | .get_sg = ethtool_op_get_sg, |
| 1024 | .set_sg = ethtool_op_set_sg, |
| 1025 | .get_tso = ethtool_op_get_tso, |
| 1026 | .set_tso = ethtool_op_set_tso, |
| 1027 | .get_regs = rtl8169_get_regs, |
Stephen Hemminger | d4a3a0f | 2005-05-27 21:11:56 +0200 | [diff] [blame] | 1028 | .get_strings = rtl8169_get_strings, |
| 1029 | .get_stats_count = rtl8169_get_stats_count, |
| 1030 | .get_ethtool_stats = rtl8169_get_ethtool_stats, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1031 | }; |
| 1032 | |
| 1033 | static void rtl8169_write_gmii_reg_bit(void __iomem *ioaddr, int reg, int bitnum, |
| 1034 | int bitval) |
| 1035 | { |
| 1036 | int val; |
| 1037 | |
| 1038 | val = mdio_read(ioaddr, reg); |
| 1039 | val = (bitval == 1) ? |
| 1040 | val | (bitval << bitnum) : val & ~(0x0001 << bitnum); |
| 1041 | mdio_write(ioaddr, reg, val & 0xffff); |
| 1042 | } |
| 1043 | |
| 1044 | static void rtl8169_get_mac_version(struct rtl8169_private *tp, void __iomem *ioaddr) |
| 1045 | { |
| 1046 | const struct { |
| 1047 | u32 mask; |
| 1048 | int mac_version; |
| 1049 | } mac_info[] = { |
| 1050 | { 0x1 << 28, RTL_GIGA_MAC_VER_X }, |
| 1051 | { 0x1 << 26, RTL_GIGA_MAC_VER_E }, |
| 1052 | { 0x1 << 23, RTL_GIGA_MAC_VER_D }, |
| 1053 | { 0x00000000, RTL_GIGA_MAC_VER_B } /* Catch-all */ |
| 1054 | }, *p = mac_info; |
| 1055 | u32 reg; |
| 1056 | |
| 1057 | reg = RTL_R32(TxConfig) & 0x7c800000; |
| 1058 | while ((reg & p->mask) != p->mask) |
| 1059 | p++; |
| 1060 | tp->mac_version = p->mac_version; |
| 1061 | } |
| 1062 | |
| 1063 | static void rtl8169_print_mac_version(struct rtl8169_private *tp) |
| 1064 | { |
| 1065 | struct { |
| 1066 | int version; |
| 1067 | char *msg; |
| 1068 | } mac_print[] = { |
| 1069 | { RTL_GIGA_MAC_VER_E, "RTL_GIGA_MAC_VER_E" }, |
| 1070 | { RTL_GIGA_MAC_VER_D, "RTL_GIGA_MAC_VER_D" }, |
| 1071 | { RTL_GIGA_MAC_VER_B, "RTL_GIGA_MAC_VER_B" }, |
| 1072 | { 0, NULL } |
| 1073 | }, *p; |
| 1074 | |
| 1075 | for (p = mac_print; p->msg; p++) { |
| 1076 | if (tp->mac_version == p->version) { |
| 1077 | dprintk("mac_version == %s (%04d)\n", p->msg, |
| 1078 | p->version); |
| 1079 | return; |
| 1080 | } |
| 1081 | } |
| 1082 | dprintk("mac_version == Unknown\n"); |
| 1083 | } |
| 1084 | |
| 1085 | static void rtl8169_get_phy_version(struct rtl8169_private *tp, void __iomem *ioaddr) |
| 1086 | { |
| 1087 | const struct { |
| 1088 | u16 mask; |
| 1089 | u16 set; |
| 1090 | int phy_version; |
| 1091 | } phy_info[] = { |
| 1092 | { 0x000f, 0x0002, RTL_GIGA_PHY_VER_G }, |
| 1093 | { 0x000f, 0x0001, RTL_GIGA_PHY_VER_F }, |
| 1094 | { 0x000f, 0x0000, RTL_GIGA_PHY_VER_E }, |
| 1095 | { 0x0000, 0x0000, RTL_GIGA_PHY_VER_D } /* Catch-all */ |
| 1096 | }, *p = phy_info; |
| 1097 | u16 reg; |
| 1098 | |
| 1099 | reg = mdio_read(ioaddr, 3) & 0xffff; |
| 1100 | while ((reg & p->mask) != p->set) |
| 1101 | p++; |
| 1102 | tp->phy_version = p->phy_version; |
| 1103 | } |
| 1104 | |
| 1105 | static void rtl8169_print_phy_version(struct rtl8169_private *tp) |
| 1106 | { |
| 1107 | struct { |
| 1108 | int version; |
| 1109 | char *msg; |
| 1110 | u32 reg; |
| 1111 | } phy_print[] = { |
| 1112 | { RTL_GIGA_PHY_VER_G, "RTL_GIGA_PHY_VER_G", 0x0002 }, |
| 1113 | { RTL_GIGA_PHY_VER_F, "RTL_GIGA_PHY_VER_F", 0x0001 }, |
| 1114 | { RTL_GIGA_PHY_VER_E, "RTL_GIGA_PHY_VER_E", 0x0000 }, |
| 1115 | { RTL_GIGA_PHY_VER_D, "RTL_GIGA_PHY_VER_D", 0x0000 }, |
| 1116 | { 0, NULL, 0x0000 } |
| 1117 | }, *p; |
| 1118 | |
| 1119 | for (p = phy_print; p->msg; p++) { |
| 1120 | if (tp->phy_version == p->version) { |
| 1121 | dprintk("phy_version == %s (%04x)\n", p->msg, p->reg); |
| 1122 | return; |
| 1123 | } |
| 1124 | } |
| 1125 | dprintk("phy_version == Unknown\n"); |
| 1126 | } |
| 1127 | |
| 1128 | static void rtl8169_hw_phy_config(struct net_device *dev) |
| 1129 | { |
| 1130 | struct rtl8169_private *tp = netdev_priv(dev); |
| 1131 | void __iomem *ioaddr = tp->mmio_addr; |
| 1132 | struct { |
| 1133 | u16 regs[5]; /* Beware of bit-sign propagation */ |
| 1134 | } phy_magic[5] = { { |
| 1135 | { 0x0000, //w 4 15 12 0 |
| 1136 | 0x00a1, //w 3 15 0 00a1 |
| 1137 | 0x0008, //w 2 15 0 0008 |
| 1138 | 0x1020, //w 1 15 0 1020 |
| 1139 | 0x1000 } },{ //w 0 15 0 1000 |
| 1140 | { 0x7000, //w 4 15 12 7 |
| 1141 | 0xff41, //w 3 15 0 ff41 |
| 1142 | 0xde60, //w 2 15 0 de60 |
| 1143 | 0x0140, //w 1 15 0 0140 |
| 1144 | 0x0077 } },{ //w 0 15 0 0077 |
| 1145 | { 0xa000, //w 4 15 12 a |
| 1146 | 0xdf01, //w 3 15 0 df01 |
| 1147 | 0xdf20, //w 2 15 0 df20 |
| 1148 | 0xff95, //w 1 15 0 ff95 |
| 1149 | 0xfa00 } },{ //w 0 15 0 fa00 |
| 1150 | { 0xb000, //w 4 15 12 b |
| 1151 | 0xff41, //w 3 15 0 ff41 |
| 1152 | 0xde20, //w 2 15 0 de20 |
| 1153 | 0x0140, //w 1 15 0 0140 |
| 1154 | 0x00bb } },{ //w 0 15 0 00bb |
| 1155 | { 0xf000, //w 4 15 12 f |
| 1156 | 0xdf01, //w 3 15 0 df01 |
| 1157 | 0xdf20, //w 2 15 0 df20 |
| 1158 | 0xff95, //w 1 15 0 ff95 |
| 1159 | 0xbf00 } //w 0 15 0 bf00 |
| 1160 | } |
| 1161 | }, *p = phy_magic; |
| 1162 | int i; |
| 1163 | |
| 1164 | rtl8169_print_mac_version(tp); |
| 1165 | rtl8169_print_phy_version(tp); |
| 1166 | |
| 1167 | if (tp->mac_version <= RTL_GIGA_MAC_VER_B) |
| 1168 | return; |
| 1169 | if (tp->phy_version >= RTL_GIGA_PHY_VER_H) |
| 1170 | return; |
| 1171 | |
| 1172 | dprintk("MAC version != 0 && PHY version == 0 or 1\n"); |
| 1173 | dprintk("Do final_reg2.cfg\n"); |
| 1174 | |
| 1175 | /* Shazam ! */ |
| 1176 | |
| 1177 | if (tp->mac_version == RTL_GIGA_MAC_VER_X) { |
| 1178 | mdio_write(ioaddr, 31, 0x0001); |
| 1179 | mdio_write(ioaddr, 9, 0x273a); |
| 1180 | mdio_write(ioaddr, 14, 0x7bfb); |
| 1181 | mdio_write(ioaddr, 27, 0x841e); |
| 1182 | |
| 1183 | mdio_write(ioaddr, 31, 0x0002); |
| 1184 | mdio_write(ioaddr, 1, 0x90d0); |
| 1185 | mdio_write(ioaddr, 31, 0x0000); |
| 1186 | return; |
| 1187 | } |
| 1188 | |
| 1189 | /* phy config for RTL8169s mac_version C chip */ |
| 1190 | mdio_write(ioaddr, 31, 0x0001); //w 31 2 0 1 |
| 1191 | mdio_write(ioaddr, 21, 0x1000); //w 21 15 0 1000 |
| 1192 | mdio_write(ioaddr, 24, 0x65c7); //w 24 15 0 65c7 |
| 1193 | rtl8169_write_gmii_reg_bit(ioaddr, 4, 11, 0); //w 4 11 11 0 |
| 1194 | |
| 1195 | for (i = 0; i < ARRAY_SIZE(phy_magic); i++, p++) { |
| 1196 | int val, pos = 4; |
| 1197 | |
| 1198 | val = (mdio_read(ioaddr, pos) & 0x0fff) | (p->regs[0] & 0xffff); |
| 1199 | mdio_write(ioaddr, pos, val); |
| 1200 | while (--pos >= 0) |
| 1201 | mdio_write(ioaddr, pos, p->regs[4 - pos] & 0xffff); |
| 1202 | rtl8169_write_gmii_reg_bit(ioaddr, 4, 11, 1); //w 4 11 11 1 |
| 1203 | rtl8169_write_gmii_reg_bit(ioaddr, 4, 11, 0); //w 4 11 11 0 |
| 1204 | } |
| 1205 | mdio_write(ioaddr, 31, 0x0000); //w 31 2 0 0 |
| 1206 | } |
| 1207 | |
| 1208 | static void rtl8169_phy_timer(unsigned long __opaque) |
| 1209 | { |
| 1210 | struct net_device *dev = (struct net_device *)__opaque; |
| 1211 | struct rtl8169_private *tp = netdev_priv(dev); |
| 1212 | struct timer_list *timer = &tp->timer; |
| 1213 | void __iomem *ioaddr = tp->mmio_addr; |
| 1214 | unsigned long timeout = RTL8169_PHY_TIMEOUT; |
| 1215 | |
| 1216 | assert(tp->mac_version > RTL_GIGA_MAC_VER_B); |
| 1217 | assert(tp->phy_version < RTL_GIGA_PHY_VER_H); |
| 1218 | |
| 1219 | if (!(tp->phy_1000_ctrl_reg & PHY_Cap_1000_Full)) |
| 1220 | return; |
| 1221 | |
| 1222 | spin_lock_irq(&tp->lock); |
| 1223 | |
| 1224 | if (tp->phy_reset_pending(ioaddr)) { |
| 1225 | /* |
| 1226 | * A busy loop could burn quite a few cycles on nowadays CPU. |
| 1227 | * Let's delay the execution of the timer for a few ticks. |
| 1228 | */ |
| 1229 | timeout = HZ/10; |
| 1230 | goto out_mod_timer; |
| 1231 | } |
| 1232 | |
| 1233 | if (tp->link_ok(ioaddr)) |
| 1234 | goto out_unlock; |
| 1235 | |
Stephen Hemminger | b57b7e5 | 2005-05-27 21:11:52 +0200 | [diff] [blame] | 1236 | if (netif_msg_link(tp)) |
| 1237 | printk(KERN_WARNING "%s: PHY reset until link up\n", dev->name); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1238 | |
| 1239 | tp->phy_reset_enable(ioaddr); |
| 1240 | |
| 1241 | out_mod_timer: |
| 1242 | mod_timer(timer, jiffies + timeout); |
| 1243 | out_unlock: |
| 1244 | spin_unlock_irq(&tp->lock); |
| 1245 | } |
| 1246 | |
| 1247 | static inline void rtl8169_delete_timer(struct net_device *dev) |
| 1248 | { |
| 1249 | struct rtl8169_private *tp = netdev_priv(dev); |
| 1250 | struct timer_list *timer = &tp->timer; |
| 1251 | |
| 1252 | if ((tp->mac_version <= RTL_GIGA_MAC_VER_B) || |
| 1253 | (tp->phy_version >= RTL_GIGA_PHY_VER_H)) |
| 1254 | return; |
| 1255 | |
| 1256 | del_timer_sync(timer); |
| 1257 | } |
| 1258 | |
| 1259 | static inline void rtl8169_request_timer(struct net_device *dev) |
| 1260 | { |
| 1261 | struct rtl8169_private *tp = netdev_priv(dev); |
| 1262 | struct timer_list *timer = &tp->timer; |
| 1263 | |
| 1264 | if ((tp->mac_version <= RTL_GIGA_MAC_VER_B) || |
| 1265 | (tp->phy_version >= RTL_GIGA_PHY_VER_H)) |
| 1266 | return; |
| 1267 | |
| 1268 | init_timer(timer); |
| 1269 | timer->expires = jiffies + RTL8169_PHY_TIMEOUT; |
| 1270 | timer->data = (unsigned long)(dev); |
| 1271 | timer->function = rtl8169_phy_timer; |
| 1272 | add_timer(timer); |
| 1273 | } |
| 1274 | |
| 1275 | #ifdef CONFIG_NET_POLL_CONTROLLER |
| 1276 | /* |
| 1277 | * Polling 'interrupt' - used by things like netconsole to send skbs |
| 1278 | * without having to re-enable interrupts. It's not called while |
| 1279 | * the interrupt routine is executing. |
| 1280 | */ |
| 1281 | static void rtl8169_netpoll(struct net_device *dev) |
| 1282 | { |
| 1283 | struct rtl8169_private *tp = netdev_priv(dev); |
| 1284 | struct pci_dev *pdev = tp->pci_dev; |
| 1285 | |
| 1286 | disable_irq(pdev->irq); |
| 1287 | rtl8169_interrupt(pdev->irq, dev, NULL); |
| 1288 | enable_irq(pdev->irq); |
| 1289 | } |
| 1290 | #endif |
| 1291 | |
| 1292 | static void rtl8169_release_board(struct pci_dev *pdev, struct net_device *dev, |
| 1293 | void __iomem *ioaddr) |
| 1294 | { |
| 1295 | iounmap(ioaddr); |
| 1296 | pci_release_regions(pdev); |
| 1297 | pci_disable_device(pdev); |
| 1298 | free_netdev(dev); |
| 1299 | } |
| 1300 | |
| 1301 | static int __devinit |
| 1302 | rtl8169_init_board(struct pci_dev *pdev, struct net_device **dev_out, |
| 1303 | void __iomem **ioaddr_out) |
| 1304 | { |
| 1305 | void __iomem *ioaddr; |
| 1306 | struct net_device *dev; |
| 1307 | struct rtl8169_private *tp; |
| 1308 | int rc = -ENOMEM, i, acpi_idle_state = 0, pm_cap; |
| 1309 | |
| 1310 | assert(ioaddr_out != NULL); |
| 1311 | |
| 1312 | /* dev zeroed in alloc_etherdev */ |
| 1313 | dev = alloc_etherdev(sizeof (*tp)); |
| 1314 | if (dev == NULL) { |
Stephen Hemminger | b57b7e5 | 2005-05-27 21:11:52 +0200 | [diff] [blame] | 1315 | if (netif_msg_drv(&debug)) |
| 1316 | printk(KERN_ERR PFX "unable to alloc new ethernet\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1317 | goto err_out; |
| 1318 | } |
| 1319 | |
| 1320 | SET_MODULE_OWNER(dev); |
| 1321 | SET_NETDEV_DEV(dev, &pdev->dev); |
| 1322 | tp = netdev_priv(dev); |
Stephen Hemminger | b57b7e5 | 2005-05-27 21:11:52 +0200 | [diff] [blame] | 1323 | tp->msg_enable = netif_msg_init(debug.msg_enable, R8169_MSG_DEFAULT); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1324 | |
| 1325 | /* enable device (incl. PCI PM wakeup and hotplug setup) */ |
| 1326 | rc = pci_enable_device(pdev); |
Stephen Hemminger | b57b7e5 | 2005-05-27 21:11:52 +0200 | [diff] [blame] | 1327 | if (rc < 0) { |
| 1328 | if (netif_msg_probe(tp)) { |
| 1329 | printk(KERN_ERR PFX "%s: enable failure\n", |
| 1330 | pci_name(pdev)); |
| 1331 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1332 | goto err_out_free_dev; |
| 1333 | } |
| 1334 | |
| 1335 | rc = pci_set_mwi(pdev); |
| 1336 | if (rc < 0) |
| 1337 | goto err_out_disable; |
| 1338 | |
| 1339 | /* save power state before pci_enable_device overwrites it */ |
| 1340 | pm_cap = pci_find_capability(pdev, PCI_CAP_ID_PM); |
| 1341 | if (pm_cap) { |
| 1342 | u16 pwr_command; |
| 1343 | |
| 1344 | pci_read_config_word(pdev, pm_cap + PCI_PM_CTRL, &pwr_command); |
| 1345 | acpi_idle_state = pwr_command & PCI_PM_CTRL_STATE_MASK; |
| 1346 | } else { |
Stephen Hemminger | b57b7e5 | 2005-05-27 21:11:52 +0200 | [diff] [blame] | 1347 | if (netif_msg_probe(tp)) { |
| 1348 | printk(KERN_ERR PFX |
| 1349 | "Cannot find PowerManagement capability. " |
| 1350 | "Aborting.\n"); |
| 1351 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1352 | goto err_out_mwi; |
| 1353 | } |
| 1354 | |
| 1355 | /* make sure PCI base addr 1 is MMIO */ |
| 1356 | if (!(pci_resource_flags(pdev, 1) & IORESOURCE_MEM)) { |
Stephen Hemminger | b57b7e5 | 2005-05-27 21:11:52 +0200 | [diff] [blame] | 1357 | if (netif_msg_probe(tp)) { |
| 1358 | printk(KERN_ERR PFX |
| 1359 | "region #1 not an MMIO resource, aborting\n"); |
| 1360 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1361 | rc = -ENODEV; |
| 1362 | goto err_out_mwi; |
| 1363 | } |
| 1364 | /* check for weird/broken PCI region reporting */ |
| 1365 | if (pci_resource_len(pdev, 1) < R8169_REGS_SIZE) { |
Stephen Hemminger | b57b7e5 | 2005-05-27 21:11:52 +0200 | [diff] [blame] | 1366 | if (netif_msg_probe(tp)) { |
| 1367 | printk(KERN_ERR PFX |
| 1368 | "Invalid PCI region size(s), aborting\n"); |
| 1369 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1370 | rc = -ENODEV; |
| 1371 | goto err_out_mwi; |
| 1372 | } |
| 1373 | |
| 1374 | rc = pci_request_regions(pdev, MODULENAME); |
Stephen Hemminger | b57b7e5 | 2005-05-27 21:11:52 +0200 | [diff] [blame] | 1375 | if (rc < 0) { |
| 1376 | if (netif_msg_probe(tp)) { |
| 1377 | printk(KERN_ERR PFX "%s: could not request regions.\n", |
| 1378 | pci_name(pdev)); |
| 1379 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1380 | goto err_out_mwi; |
| 1381 | } |
| 1382 | |
| 1383 | tp->cp_cmd = PCIMulRW | RxChkSum; |
| 1384 | |
| 1385 | if ((sizeof(dma_addr_t) > 4) && |
| 1386 | !pci_set_dma_mask(pdev, DMA_64BIT_MASK) && use_dac) { |
| 1387 | tp->cp_cmd |= PCIDAC; |
| 1388 | dev->features |= NETIF_F_HIGHDMA; |
| 1389 | } else { |
| 1390 | rc = pci_set_dma_mask(pdev, DMA_32BIT_MASK); |
| 1391 | if (rc < 0) { |
Stephen Hemminger | b57b7e5 | 2005-05-27 21:11:52 +0200 | [diff] [blame] | 1392 | if (netif_msg_probe(tp)) { |
| 1393 | printk(KERN_ERR PFX |
| 1394 | "DMA configuration failed.\n"); |
| 1395 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1396 | goto err_out_free_res; |
| 1397 | } |
| 1398 | } |
| 1399 | |
| 1400 | pci_set_master(pdev); |
| 1401 | |
| 1402 | /* ioremap MMIO region */ |
| 1403 | ioaddr = ioremap(pci_resource_start(pdev, 1), R8169_REGS_SIZE); |
| 1404 | if (ioaddr == NULL) { |
Stephen Hemminger | b57b7e5 | 2005-05-27 21:11:52 +0200 | [diff] [blame] | 1405 | if (netif_msg_probe(tp)) |
| 1406 | printk(KERN_ERR PFX "cannot remap MMIO, aborting\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1407 | rc = -EIO; |
| 1408 | goto err_out_free_res; |
| 1409 | } |
| 1410 | |
| 1411 | /* Unneeded ? Don't mess with Mrs. Murphy. */ |
| 1412 | rtl8169_irq_mask_and_ack(ioaddr); |
| 1413 | |
| 1414 | /* Soft reset the chip. */ |
| 1415 | RTL_W8(ChipCmd, CmdReset); |
| 1416 | |
| 1417 | /* Check that the chip has finished the reset. */ |
| 1418 | for (i = 1000; i > 0; i--) { |
| 1419 | if ((RTL_R8(ChipCmd) & CmdReset) == 0) |
| 1420 | break; |
| 1421 | udelay(10); |
| 1422 | } |
| 1423 | |
| 1424 | /* Identify chip attached to board */ |
| 1425 | rtl8169_get_mac_version(tp, ioaddr); |
| 1426 | rtl8169_get_phy_version(tp, ioaddr); |
| 1427 | |
| 1428 | rtl8169_print_mac_version(tp); |
| 1429 | rtl8169_print_phy_version(tp); |
| 1430 | |
| 1431 | for (i = ARRAY_SIZE(rtl_chip_info) - 1; i >= 0; i--) { |
| 1432 | if (tp->mac_version == rtl_chip_info[i].mac_version) |
| 1433 | break; |
| 1434 | } |
| 1435 | if (i < 0) { |
| 1436 | /* Unknown chip: assume array element #0, original RTL-8169 */ |
Stephen Hemminger | b57b7e5 | 2005-05-27 21:11:52 +0200 | [diff] [blame] | 1437 | if (netif_msg_probe(tp)) { |
| 1438 | printk(KERN_DEBUG PFX "PCI device %s: " |
| 1439 | "unknown chip version, assuming %s\n", |
| 1440 | pci_name(pdev), rtl_chip_info[0].name); |
| 1441 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1442 | i++; |
| 1443 | } |
| 1444 | tp->chipset = i; |
| 1445 | |
| 1446 | *ioaddr_out = ioaddr; |
| 1447 | *dev_out = dev; |
| 1448 | out: |
| 1449 | return rc; |
| 1450 | |
| 1451 | err_out_free_res: |
| 1452 | pci_release_regions(pdev); |
| 1453 | |
| 1454 | err_out_mwi: |
| 1455 | pci_clear_mwi(pdev); |
| 1456 | |
| 1457 | err_out_disable: |
| 1458 | pci_disable_device(pdev); |
| 1459 | |
| 1460 | err_out_free_dev: |
| 1461 | free_netdev(dev); |
| 1462 | err_out: |
| 1463 | *ioaddr_out = NULL; |
| 1464 | *dev_out = NULL; |
| 1465 | goto out; |
| 1466 | } |
| 1467 | |
| 1468 | static int __devinit |
| 1469 | rtl8169_init_one(struct pci_dev *pdev, const struct pci_device_id *ent) |
| 1470 | { |
| 1471 | struct net_device *dev = NULL; |
| 1472 | struct rtl8169_private *tp; |
| 1473 | void __iomem *ioaddr = NULL; |
| 1474 | static int board_idx = -1; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1475 | u8 autoneg, duplex; |
| 1476 | u16 speed; |
| 1477 | int i, rc; |
| 1478 | |
| 1479 | assert(pdev != NULL); |
| 1480 | assert(ent != NULL); |
| 1481 | |
| 1482 | board_idx++; |
| 1483 | |
Stephen Hemminger | b57b7e5 | 2005-05-27 21:11:52 +0200 | [diff] [blame] | 1484 | if (netif_msg_drv(&debug)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1485 | printk(KERN_INFO "%s Gigabit Ethernet driver %s loaded\n", |
| 1486 | MODULENAME, RTL8169_VERSION); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1487 | } |
| 1488 | |
| 1489 | rc = rtl8169_init_board(pdev, &dev, &ioaddr); |
| 1490 | if (rc) |
| 1491 | return rc; |
| 1492 | |
| 1493 | tp = netdev_priv(dev); |
| 1494 | assert(ioaddr != NULL); |
| 1495 | |
| 1496 | if (RTL_R8(PHYstatus) & TBI_Enable) { |
| 1497 | tp->set_speed = rtl8169_set_speed_tbi; |
| 1498 | tp->get_settings = rtl8169_gset_tbi; |
| 1499 | tp->phy_reset_enable = rtl8169_tbi_reset_enable; |
| 1500 | tp->phy_reset_pending = rtl8169_tbi_reset_pending; |
| 1501 | tp->link_ok = rtl8169_tbi_link_ok; |
| 1502 | |
| 1503 | tp->phy_1000_ctrl_reg = PHY_Cap_1000_Full; /* Implied by TBI */ |
| 1504 | } else { |
| 1505 | tp->set_speed = rtl8169_set_speed_xmii; |
| 1506 | tp->get_settings = rtl8169_gset_xmii; |
| 1507 | tp->phy_reset_enable = rtl8169_xmii_reset_enable; |
| 1508 | tp->phy_reset_pending = rtl8169_xmii_reset_pending; |
| 1509 | tp->link_ok = rtl8169_xmii_link_ok; |
| 1510 | } |
| 1511 | |
| 1512 | /* Get MAC address. FIXME: read EEPROM */ |
| 1513 | for (i = 0; i < MAC_ADDR_LEN; i++) |
| 1514 | dev->dev_addr[i] = RTL_R8(MAC0 + i); |
| 1515 | |
| 1516 | dev->open = rtl8169_open; |
| 1517 | dev->hard_start_xmit = rtl8169_start_xmit; |
| 1518 | dev->get_stats = rtl8169_get_stats; |
| 1519 | SET_ETHTOOL_OPS(dev, &rtl8169_ethtool_ops); |
| 1520 | dev->stop = rtl8169_close; |
| 1521 | dev->tx_timeout = rtl8169_tx_timeout; |
| 1522 | dev->set_multicast_list = rtl8169_set_rx_mode; |
| 1523 | dev->watchdog_timeo = RTL8169_TX_TIMEOUT; |
| 1524 | dev->irq = pdev->irq; |
| 1525 | dev->base_addr = (unsigned long) ioaddr; |
| 1526 | dev->change_mtu = rtl8169_change_mtu; |
| 1527 | |
| 1528 | #ifdef CONFIG_R8169_NAPI |
| 1529 | dev->poll = rtl8169_poll; |
| 1530 | dev->weight = R8169_NAPI_WEIGHT; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1531 | #endif |
| 1532 | |
| 1533 | #ifdef CONFIG_R8169_VLAN |
| 1534 | dev->features |= NETIF_F_HW_VLAN_TX | NETIF_F_HW_VLAN_RX; |
| 1535 | dev->vlan_rx_register = rtl8169_vlan_rx_register; |
| 1536 | dev->vlan_rx_kill_vid = rtl8169_vlan_rx_kill_vid; |
| 1537 | #endif |
| 1538 | |
| 1539 | #ifdef CONFIG_NET_POLL_CONTROLLER |
| 1540 | dev->poll_controller = rtl8169_netpoll; |
| 1541 | #endif |
| 1542 | |
| 1543 | tp->intr_mask = 0xffff; |
| 1544 | tp->pci_dev = pdev; |
| 1545 | tp->mmio_addr = ioaddr; |
| 1546 | |
| 1547 | spin_lock_init(&tp->lock); |
| 1548 | |
| 1549 | rc = register_netdev(dev); |
| 1550 | if (rc) { |
| 1551 | rtl8169_release_board(pdev, dev, ioaddr); |
| 1552 | return rc; |
| 1553 | } |
| 1554 | |
Stephen Hemminger | b57b7e5 | 2005-05-27 21:11:52 +0200 | [diff] [blame] | 1555 | if (netif_msg_probe(tp)) { |
| 1556 | printk(KERN_DEBUG "%s: Identified chip type is '%s'.\n", |
| 1557 | dev->name, rtl_chip_info[tp->chipset].name); |
| 1558 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1559 | |
| 1560 | pci_set_drvdata(pdev, dev); |
| 1561 | |
Stephen Hemminger | b57b7e5 | 2005-05-27 21:11:52 +0200 | [diff] [blame] | 1562 | if (netif_msg_probe(tp)) { |
| 1563 | printk(KERN_INFO "%s: %s at 0x%lx, " |
| 1564 | "%2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x, " |
| 1565 | "IRQ %d\n", |
| 1566 | dev->name, |
| 1567 | rtl_chip_info[ent->driver_data].name, |
| 1568 | dev->base_addr, |
| 1569 | dev->dev_addr[0], dev->dev_addr[1], |
| 1570 | dev->dev_addr[2], dev->dev_addr[3], |
| 1571 | dev->dev_addr[4], dev->dev_addr[5], dev->irq); |
| 1572 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1573 | |
| 1574 | rtl8169_hw_phy_config(dev); |
| 1575 | |
| 1576 | dprintk("Set MAC Reg C+CR Offset 0x82h = 0x01h\n"); |
| 1577 | RTL_W8(0x82, 0x01); |
| 1578 | |
| 1579 | if (tp->mac_version < RTL_GIGA_MAC_VER_E) { |
| 1580 | dprintk("Set PCI Latency=0x40\n"); |
| 1581 | pci_write_config_byte(pdev, PCI_LATENCY_TIMER, 0x40); |
| 1582 | } |
| 1583 | |
| 1584 | if (tp->mac_version == RTL_GIGA_MAC_VER_D) { |
| 1585 | dprintk("Set MAC Reg C+CR Offset 0x82h = 0x01h\n"); |
| 1586 | RTL_W8(0x82, 0x01); |
| 1587 | dprintk("Set PHY Reg 0x0bh = 0x00h\n"); |
| 1588 | mdio_write(ioaddr, 0x0b, 0x0000); //w 0x0b 15 0 0 |
| 1589 | } |
| 1590 | |
| 1591 | rtl8169_link_option(board_idx, &autoneg, &speed, &duplex); |
| 1592 | |
| 1593 | rtl8169_set_speed(dev, autoneg, speed, duplex); |
| 1594 | |
Stephen Hemminger | b57b7e5 | 2005-05-27 21:11:52 +0200 | [diff] [blame] | 1595 | if ((RTL_R8(PHYstatus) & TBI_Enable) && netif_msg_link(tp)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1596 | printk(KERN_INFO PFX "%s: TBI auto-negotiating\n", dev->name); |
| 1597 | |
| 1598 | return 0; |
| 1599 | } |
| 1600 | |
| 1601 | static void __devexit |
| 1602 | rtl8169_remove_one(struct pci_dev *pdev) |
| 1603 | { |
| 1604 | struct net_device *dev = pci_get_drvdata(pdev); |
| 1605 | struct rtl8169_private *tp = netdev_priv(dev); |
| 1606 | |
| 1607 | assert(dev != NULL); |
| 1608 | assert(tp != NULL); |
| 1609 | |
| 1610 | unregister_netdev(dev); |
| 1611 | rtl8169_release_board(pdev, dev, tp->mmio_addr); |
| 1612 | pci_set_drvdata(pdev, NULL); |
| 1613 | } |
| 1614 | |
| 1615 | #ifdef CONFIG_PM |
| 1616 | |
Pavel Machek | 05adc3b | 2005-04-16 15:25:25 -0700 | [diff] [blame] | 1617 | static int rtl8169_suspend(struct pci_dev *pdev, pm_message_t state) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1618 | { |
| 1619 | struct net_device *dev = pci_get_drvdata(pdev); |
| 1620 | struct rtl8169_private *tp = netdev_priv(dev); |
| 1621 | void __iomem *ioaddr = tp->mmio_addr; |
| 1622 | unsigned long flags; |
| 1623 | |
| 1624 | if (!netif_running(dev)) |
| 1625 | return 0; |
| 1626 | |
| 1627 | netif_device_detach(dev); |
| 1628 | netif_stop_queue(dev); |
| 1629 | spin_lock_irqsave(&tp->lock, flags); |
| 1630 | |
| 1631 | /* Disable interrupts, stop Rx and Tx */ |
| 1632 | RTL_W16(IntrMask, 0); |
| 1633 | RTL_W8(ChipCmd, 0); |
| 1634 | |
| 1635 | /* Update the error counts. */ |
| 1636 | tp->stats.rx_missed_errors += RTL_R32(RxMissed); |
| 1637 | RTL_W32(RxMissed, 0); |
| 1638 | spin_unlock_irqrestore(&tp->lock, flags); |
| 1639 | |
| 1640 | return 0; |
| 1641 | } |
| 1642 | |
| 1643 | static int rtl8169_resume(struct pci_dev *pdev) |
| 1644 | { |
| 1645 | struct net_device *dev = pci_get_drvdata(pdev); |
| 1646 | |
| 1647 | if (!netif_running(dev)) |
| 1648 | return 0; |
| 1649 | |
| 1650 | netif_device_attach(dev); |
| 1651 | rtl8169_hw_start(dev); |
| 1652 | |
| 1653 | return 0; |
| 1654 | } |
| 1655 | |
| 1656 | #endif /* CONFIG_PM */ |
| 1657 | |
| 1658 | static void rtl8169_set_rxbufsize(struct rtl8169_private *tp, |
| 1659 | struct net_device *dev) |
| 1660 | { |
| 1661 | unsigned int mtu = dev->mtu; |
| 1662 | |
| 1663 | tp->rx_buf_sz = (mtu > RX_BUF_SIZE) ? mtu + ETH_HLEN + 8 : RX_BUF_SIZE; |
| 1664 | } |
| 1665 | |
| 1666 | static int rtl8169_open(struct net_device *dev) |
| 1667 | { |
| 1668 | struct rtl8169_private *tp = netdev_priv(dev); |
| 1669 | struct pci_dev *pdev = tp->pci_dev; |
| 1670 | int retval; |
| 1671 | |
| 1672 | rtl8169_set_rxbufsize(tp, dev); |
| 1673 | |
| 1674 | retval = |
| 1675 | request_irq(dev->irq, rtl8169_interrupt, SA_SHIRQ, dev->name, dev); |
| 1676 | if (retval < 0) |
| 1677 | goto out; |
| 1678 | |
| 1679 | retval = -ENOMEM; |
| 1680 | |
| 1681 | /* |
| 1682 | * Rx and Tx desscriptors needs 256 bytes alignment. |
| 1683 | * pci_alloc_consistent provides more. |
| 1684 | */ |
| 1685 | tp->TxDescArray = pci_alloc_consistent(pdev, R8169_TX_RING_BYTES, |
| 1686 | &tp->TxPhyAddr); |
| 1687 | if (!tp->TxDescArray) |
| 1688 | goto err_free_irq; |
| 1689 | |
| 1690 | tp->RxDescArray = pci_alloc_consistent(pdev, R8169_RX_RING_BYTES, |
| 1691 | &tp->RxPhyAddr); |
| 1692 | if (!tp->RxDescArray) |
| 1693 | goto err_free_tx; |
| 1694 | |
| 1695 | retval = rtl8169_init_ring(dev); |
| 1696 | if (retval < 0) |
| 1697 | goto err_free_rx; |
| 1698 | |
| 1699 | INIT_WORK(&tp->task, NULL, dev); |
| 1700 | |
| 1701 | rtl8169_hw_start(dev); |
| 1702 | |
| 1703 | rtl8169_request_timer(dev); |
| 1704 | |
| 1705 | rtl8169_check_link_status(dev, tp, tp->mmio_addr); |
| 1706 | out: |
| 1707 | return retval; |
| 1708 | |
| 1709 | err_free_rx: |
| 1710 | pci_free_consistent(pdev, R8169_RX_RING_BYTES, tp->RxDescArray, |
| 1711 | tp->RxPhyAddr); |
| 1712 | err_free_tx: |
| 1713 | pci_free_consistent(pdev, R8169_TX_RING_BYTES, tp->TxDescArray, |
| 1714 | tp->TxPhyAddr); |
| 1715 | err_free_irq: |
| 1716 | free_irq(dev->irq, dev); |
| 1717 | goto out; |
| 1718 | } |
| 1719 | |
| 1720 | static void rtl8169_hw_reset(void __iomem *ioaddr) |
| 1721 | { |
| 1722 | /* Disable interrupts */ |
| 1723 | rtl8169_irq_mask_and_ack(ioaddr); |
| 1724 | |
| 1725 | /* Reset the chipset */ |
| 1726 | RTL_W8(ChipCmd, CmdReset); |
| 1727 | |
| 1728 | /* PCI commit */ |
| 1729 | RTL_R8(ChipCmd); |
| 1730 | } |
| 1731 | |
| 1732 | static void |
| 1733 | rtl8169_hw_start(struct net_device *dev) |
| 1734 | { |
| 1735 | struct rtl8169_private *tp = netdev_priv(dev); |
| 1736 | void __iomem *ioaddr = tp->mmio_addr; |
| 1737 | u32 i; |
| 1738 | |
| 1739 | /* Soft reset the chip. */ |
| 1740 | RTL_W8(ChipCmd, CmdReset); |
| 1741 | |
| 1742 | /* Check that the chip has finished the reset. */ |
| 1743 | for (i = 1000; i > 0; i--) { |
| 1744 | if ((RTL_R8(ChipCmd) & CmdReset) == 0) |
| 1745 | break; |
| 1746 | udelay(10); |
| 1747 | } |
| 1748 | |
| 1749 | RTL_W8(Cfg9346, Cfg9346_Unlock); |
| 1750 | RTL_W8(ChipCmd, CmdTxEnb | CmdRxEnb); |
| 1751 | RTL_W8(EarlyTxThres, EarlyTxThld); |
| 1752 | |
Francois Romieu | 126fa4b | 2005-05-12 20:09:17 -0400 | [diff] [blame] | 1753 | /* Low hurts. Let's disable the filtering. */ |
| 1754 | RTL_W16(RxMaxSize, 16383); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1755 | |
| 1756 | /* Set Rx Config register */ |
| 1757 | i = rtl8169_rx_config | |
| 1758 | (RTL_R32(RxConfig) & rtl_chip_info[tp->chipset].RxConfigMask); |
| 1759 | RTL_W32(RxConfig, i); |
| 1760 | |
| 1761 | /* Set DMA burst size and Interframe Gap Time */ |
| 1762 | RTL_W32(TxConfig, |
| 1763 | (TX_DMA_BURST << TxDMAShift) | (InterFrameGap << |
| 1764 | TxInterFrameGapShift)); |
| 1765 | tp->cp_cmd |= RTL_R16(CPlusCmd); |
| 1766 | RTL_W16(CPlusCmd, tp->cp_cmd); |
| 1767 | |
| 1768 | if ((tp->mac_version == RTL_GIGA_MAC_VER_D) || |
| 1769 | (tp->mac_version == RTL_GIGA_MAC_VER_E)) { |
| 1770 | dprintk(KERN_INFO PFX "Set MAC Reg C+CR Offset 0xE0. " |
| 1771 | "Bit-3 and bit-14 MUST be 1\n"); |
| 1772 | tp->cp_cmd |= (1 << 14) | PCIMulRW; |
| 1773 | RTL_W16(CPlusCmd, tp->cp_cmd); |
| 1774 | } |
| 1775 | |
| 1776 | /* |
| 1777 | * Undocumented corner. Supposedly: |
| 1778 | * (TxTimer << 12) | (TxPackets << 8) | (RxTimer << 4) | RxPackets |
| 1779 | */ |
| 1780 | RTL_W16(IntrMitigate, 0x0000); |
| 1781 | |
| 1782 | RTL_W32(TxDescStartAddrLow, ((u64) tp->TxPhyAddr & DMA_32BIT_MASK)); |
| 1783 | RTL_W32(TxDescStartAddrHigh, ((u64) tp->TxPhyAddr >> 32)); |
| 1784 | RTL_W32(RxDescAddrLow, ((u64) tp->RxPhyAddr & DMA_32BIT_MASK)); |
| 1785 | RTL_W32(RxDescAddrHigh, ((u64) tp->RxPhyAddr >> 32)); |
| 1786 | RTL_W8(Cfg9346, Cfg9346_Lock); |
| 1787 | udelay(10); |
| 1788 | |
| 1789 | RTL_W32(RxMissed, 0); |
| 1790 | |
| 1791 | rtl8169_set_rx_mode(dev); |
| 1792 | |
| 1793 | /* no early-rx interrupts */ |
| 1794 | RTL_W16(MultiIntr, RTL_R16(MultiIntr) & 0xF000); |
| 1795 | |
| 1796 | /* Enable all known interrupts by setting the interrupt mask. */ |
| 1797 | RTL_W16(IntrMask, rtl8169_intr_mask); |
| 1798 | |
| 1799 | netif_start_queue(dev); |
| 1800 | } |
| 1801 | |
| 1802 | static int rtl8169_change_mtu(struct net_device *dev, int new_mtu) |
| 1803 | { |
| 1804 | struct rtl8169_private *tp = netdev_priv(dev); |
| 1805 | int ret = 0; |
| 1806 | |
| 1807 | if (new_mtu < ETH_ZLEN || new_mtu > SafeMtu) |
| 1808 | return -EINVAL; |
| 1809 | |
| 1810 | dev->mtu = new_mtu; |
| 1811 | |
| 1812 | if (!netif_running(dev)) |
| 1813 | goto out; |
| 1814 | |
| 1815 | rtl8169_down(dev); |
| 1816 | |
| 1817 | rtl8169_set_rxbufsize(tp, dev); |
| 1818 | |
| 1819 | ret = rtl8169_init_ring(dev); |
| 1820 | if (ret < 0) |
| 1821 | goto out; |
| 1822 | |
| 1823 | netif_poll_enable(dev); |
| 1824 | |
| 1825 | rtl8169_hw_start(dev); |
| 1826 | |
| 1827 | rtl8169_request_timer(dev); |
| 1828 | |
| 1829 | out: |
| 1830 | return ret; |
| 1831 | } |
| 1832 | |
| 1833 | static inline void rtl8169_make_unusable_by_asic(struct RxDesc *desc) |
| 1834 | { |
| 1835 | desc->addr = 0x0badbadbadbadbadull; |
| 1836 | desc->opts1 &= ~cpu_to_le32(DescOwn | RsvdMask); |
| 1837 | } |
| 1838 | |
| 1839 | static void rtl8169_free_rx_skb(struct rtl8169_private *tp, |
| 1840 | struct sk_buff **sk_buff, struct RxDesc *desc) |
| 1841 | { |
| 1842 | struct pci_dev *pdev = tp->pci_dev; |
| 1843 | |
| 1844 | pci_unmap_single(pdev, le64_to_cpu(desc->addr), tp->rx_buf_sz, |
| 1845 | PCI_DMA_FROMDEVICE); |
| 1846 | dev_kfree_skb(*sk_buff); |
| 1847 | *sk_buff = NULL; |
| 1848 | rtl8169_make_unusable_by_asic(desc); |
| 1849 | } |
| 1850 | |
| 1851 | static inline void rtl8169_mark_to_asic(struct RxDesc *desc, u32 rx_buf_sz) |
| 1852 | { |
| 1853 | u32 eor = le32_to_cpu(desc->opts1) & RingEnd; |
| 1854 | |
| 1855 | desc->opts1 = cpu_to_le32(DescOwn | eor | rx_buf_sz); |
| 1856 | } |
| 1857 | |
| 1858 | static inline void rtl8169_map_to_asic(struct RxDesc *desc, dma_addr_t mapping, |
| 1859 | u32 rx_buf_sz) |
| 1860 | { |
| 1861 | desc->addr = cpu_to_le64(mapping); |
| 1862 | wmb(); |
| 1863 | rtl8169_mark_to_asic(desc, rx_buf_sz); |
| 1864 | } |
| 1865 | |
| 1866 | static int rtl8169_alloc_rx_skb(struct pci_dev *pdev, struct sk_buff **sk_buff, |
| 1867 | struct RxDesc *desc, int rx_buf_sz) |
| 1868 | { |
| 1869 | struct sk_buff *skb; |
| 1870 | dma_addr_t mapping; |
| 1871 | int ret = 0; |
| 1872 | |
| 1873 | skb = dev_alloc_skb(rx_buf_sz + NET_IP_ALIGN); |
| 1874 | if (!skb) |
| 1875 | goto err_out; |
| 1876 | |
| 1877 | skb_reserve(skb, NET_IP_ALIGN); |
| 1878 | *sk_buff = skb; |
| 1879 | |
David S. Miller | 689be43 | 2005-06-28 15:25:31 -0700 | [diff] [blame] | 1880 | mapping = pci_map_single(pdev, skb->data, rx_buf_sz, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1881 | PCI_DMA_FROMDEVICE); |
| 1882 | |
| 1883 | rtl8169_map_to_asic(desc, mapping, rx_buf_sz); |
| 1884 | |
| 1885 | out: |
| 1886 | return ret; |
| 1887 | |
| 1888 | err_out: |
| 1889 | ret = -ENOMEM; |
| 1890 | rtl8169_make_unusable_by_asic(desc); |
| 1891 | goto out; |
| 1892 | } |
| 1893 | |
| 1894 | static void rtl8169_rx_clear(struct rtl8169_private *tp) |
| 1895 | { |
| 1896 | int i; |
| 1897 | |
| 1898 | for (i = 0; i < NUM_RX_DESC; i++) { |
| 1899 | if (tp->Rx_skbuff[i]) { |
| 1900 | rtl8169_free_rx_skb(tp, tp->Rx_skbuff + i, |
| 1901 | tp->RxDescArray + i); |
| 1902 | } |
| 1903 | } |
| 1904 | } |
| 1905 | |
| 1906 | static u32 rtl8169_rx_fill(struct rtl8169_private *tp, struct net_device *dev, |
| 1907 | u32 start, u32 end) |
| 1908 | { |
| 1909 | u32 cur; |
| 1910 | |
| 1911 | for (cur = start; end - cur > 0; cur++) { |
| 1912 | int ret, i = cur % NUM_RX_DESC; |
| 1913 | |
| 1914 | if (tp->Rx_skbuff[i]) |
| 1915 | continue; |
| 1916 | |
| 1917 | ret = rtl8169_alloc_rx_skb(tp->pci_dev, tp->Rx_skbuff + i, |
| 1918 | tp->RxDescArray + i, tp->rx_buf_sz); |
| 1919 | if (ret < 0) |
| 1920 | break; |
| 1921 | } |
| 1922 | return cur - start; |
| 1923 | } |
| 1924 | |
| 1925 | static inline void rtl8169_mark_as_last_descriptor(struct RxDesc *desc) |
| 1926 | { |
| 1927 | desc->opts1 |= cpu_to_le32(RingEnd); |
| 1928 | } |
| 1929 | |
| 1930 | static void rtl8169_init_ring_indexes(struct rtl8169_private *tp) |
| 1931 | { |
| 1932 | tp->dirty_tx = tp->dirty_rx = tp->cur_tx = tp->cur_rx = 0; |
| 1933 | } |
| 1934 | |
| 1935 | static int rtl8169_init_ring(struct net_device *dev) |
| 1936 | { |
| 1937 | struct rtl8169_private *tp = netdev_priv(dev); |
| 1938 | |
| 1939 | rtl8169_init_ring_indexes(tp); |
| 1940 | |
| 1941 | memset(tp->tx_skb, 0x0, NUM_TX_DESC * sizeof(struct ring_info)); |
| 1942 | memset(tp->Rx_skbuff, 0x0, NUM_RX_DESC * sizeof(struct sk_buff *)); |
| 1943 | |
| 1944 | if (rtl8169_rx_fill(tp, dev, 0, NUM_RX_DESC) != NUM_RX_DESC) |
| 1945 | goto err_out; |
| 1946 | |
| 1947 | rtl8169_mark_as_last_descriptor(tp->RxDescArray + NUM_RX_DESC - 1); |
| 1948 | |
| 1949 | return 0; |
| 1950 | |
| 1951 | err_out: |
| 1952 | rtl8169_rx_clear(tp); |
| 1953 | return -ENOMEM; |
| 1954 | } |
| 1955 | |
| 1956 | static void rtl8169_unmap_tx_skb(struct pci_dev *pdev, struct ring_info *tx_skb, |
| 1957 | struct TxDesc *desc) |
| 1958 | { |
| 1959 | unsigned int len = tx_skb->len; |
| 1960 | |
| 1961 | pci_unmap_single(pdev, le64_to_cpu(desc->addr), len, PCI_DMA_TODEVICE); |
| 1962 | desc->opts1 = 0x00; |
| 1963 | desc->opts2 = 0x00; |
| 1964 | desc->addr = 0x00; |
| 1965 | tx_skb->len = 0; |
| 1966 | } |
| 1967 | |
| 1968 | static void rtl8169_tx_clear(struct rtl8169_private *tp) |
| 1969 | { |
| 1970 | unsigned int i; |
| 1971 | |
| 1972 | for (i = tp->dirty_tx; i < tp->dirty_tx + NUM_TX_DESC; i++) { |
| 1973 | unsigned int entry = i % NUM_TX_DESC; |
| 1974 | struct ring_info *tx_skb = tp->tx_skb + entry; |
| 1975 | unsigned int len = tx_skb->len; |
| 1976 | |
| 1977 | if (len) { |
| 1978 | struct sk_buff *skb = tx_skb->skb; |
| 1979 | |
| 1980 | rtl8169_unmap_tx_skb(tp->pci_dev, tx_skb, |
| 1981 | tp->TxDescArray + entry); |
| 1982 | if (skb) { |
| 1983 | dev_kfree_skb(skb); |
| 1984 | tx_skb->skb = NULL; |
| 1985 | } |
| 1986 | tp->stats.tx_dropped++; |
| 1987 | } |
| 1988 | } |
| 1989 | tp->cur_tx = tp->dirty_tx = 0; |
| 1990 | } |
| 1991 | |
| 1992 | static void rtl8169_schedule_work(struct net_device *dev, void (*task)(void *)) |
| 1993 | { |
| 1994 | struct rtl8169_private *tp = netdev_priv(dev); |
| 1995 | |
| 1996 | PREPARE_WORK(&tp->task, task, dev); |
| 1997 | schedule_delayed_work(&tp->task, 4); |
| 1998 | } |
| 1999 | |
| 2000 | static void rtl8169_wait_for_quiescence(struct net_device *dev) |
| 2001 | { |
| 2002 | struct rtl8169_private *tp = netdev_priv(dev); |
| 2003 | void __iomem *ioaddr = tp->mmio_addr; |
| 2004 | |
| 2005 | synchronize_irq(dev->irq); |
| 2006 | |
| 2007 | /* Wait for any pending NAPI task to complete */ |
| 2008 | netif_poll_disable(dev); |
| 2009 | |
| 2010 | rtl8169_irq_mask_and_ack(ioaddr); |
| 2011 | |
| 2012 | netif_poll_enable(dev); |
| 2013 | } |
| 2014 | |
| 2015 | static void rtl8169_reinit_task(void *_data) |
| 2016 | { |
| 2017 | struct net_device *dev = _data; |
| 2018 | int ret; |
| 2019 | |
| 2020 | if (netif_running(dev)) { |
| 2021 | rtl8169_wait_for_quiescence(dev); |
| 2022 | rtl8169_close(dev); |
| 2023 | } |
| 2024 | |
| 2025 | ret = rtl8169_open(dev); |
| 2026 | if (unlikely(ret < 0)) { |
| 2027 | if (net_ratelimit()) { |
Stephen Hemminger | b57b7e5 | 2005-05-27 21:11:52 +0200 | [diff] [blame] | 2028 | struct rtl8169_private *tp = netdev_priv(dev); |
| 2029 | |
| 2030 | if (netif_msg_drv(tp)) { |
| 2031 | printk(PFX KERN_ERR |
| 2032 | "%s: reinit failure (status = %d)." |
| 2033 | " Rescheduling.\n", dev->name, ret); |
| 2034 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2035 | } |
| 2036 | rtl8169_schedule_work(dev, rtl8169_reinit_task); |
| 2037 | } |
| 2038 | } |
| 2039 | |
| 2040 | static void rtl8169_reset_task(void *_data) |
| 2041 | { |
| 2042 | struct net_device *dev = _data; |
| 2043 | struct rtl8169_private *tp = netdev_priv(dev); |
| 2044 | |
| 2045 | if (!netif_running(dev)) |
| 2046 | return; |
| 2047 | |
| 2048 | rtl8169_wait_for_quiescence(dev); |
| 2049 | |
| 2050 | rtl8169_rx_interrupt(dev, tp, tp->mmio_addr); |
| 2051 | rtl8169_tx_clear(tp); |
| 2052 | |
| 2053 | if (tp->dirty_rx == tp->cur_rx) { |
| 2054 | rtl8169_init_ring_indexes(tp); |
| 2055 | rtl8169_hw_start(dev); |
| 2056 | netif_wake_queue(dev); |
| 2057 | } else { |
| 2058 | if (net_ratelimit()) { |
Stephen Hemminger | b57b7e5 | 2005-05-27 21:11:52 +0200 | [diff] [blame] | 2059 | struct rtl8169_private *tp = netdev_priv(dev); |
| 2060 | |
| 2061 | if (netif_msg_intr(tp)) { |
| 2062 | printk(PFX KERN_EMERG |
| 2063 | "%s: Rx buffers shortage\n", dev->name); |
| 2064 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2065 | } |
| 2066 | rtl8169_schedule_work(dev, rtl8169_reset_task); |
| 2067 | } |
| 2068 | } |
| 2069 | |
| 2070 | static void rtl8169_tx_timeout(struct net_device *dev) |
| 2071 | { |
| 2072 | struct rtl8169_private *tp = netdev_priv(dev); |
| 2073 | |
| 2074 | rtl8169_hw_reset(tp->mmio_addr); |
| 2075 | |
| 2076 | /* Let's wait a bit while any (async) irq lands on */ |
| 2077 | rtl8169_schedule_work(dev, rtl8169_reset_task); |
| 2078 | } |
| 2079 | |
| 2080 | static int rtl8169_xmit_frags(struct rtl8169_private *tp, struct sk_buff *skb, |
| 2081 | u32 opts1) |
| 2082 | { |
| 2083 | struct skb_shared_info *info = skb_shinfo(skb); |
| 2084 | unsigned int cur_frag, entry; |
| 2085 | struct TxDesc *txd; |
| 2086 | |
| 2087 | entry = tp->cur_tx; |
| 2088 | for (cur_frag = 0; cur_frag < info->nr_frags; cur_frag++) { |
| 2089 | skb_frag_t *frag = info->frags + cur_frag; |
| 2090 | dma_addr_t mapping; |
| 2091 | u32 status, len; |
| 2092 | void *addr; |
| 2093 | |
| 2094 | entry = (entry + 1) % NUM_TX_DESC; |
| 2095 | |
| 2096 | txd = tp->TxDescArray + entry; |
| 2097 | len = frag->size; |
| 2098 | addr = ((void *) page_address(frag->page)) + frag->page_offset; |
| 2099 | mapping = pci_map_single(tp->pci_dev, addr, len, PCI_DMA_TODEVICE); |
| 2100 | |
| 2101 | /* anti gcc 2.95.3 bugware (sic) */ |
| 2102 | status = opts1 | len | (RingEnd * !((entry + 1) % NUM_TX_DESC)); |
| 2103 | |
| 2104 | txd->opts1 = cpu_to_le32(status); |
| 2105 | txd->addr = cpu_to_le64(mapping); |
| 2106 | |
| 2107 | tp->tx_skb[entry].len = len; |
| 2108 | } |
| 2109 | |
| 2110 | if (cur_frag) { |
| 2111 | tp->tx_skb[entry].skb = skb; |
| 2112 | txd->opts1 |= cpu_to_le32(LastFrag); |
| 2113 | } |
| 2114 | |
| 2115 | return cur_frag; |
| 2116 | } |
| 2117 | |
| 2118 | static inline u32 rtl8169_tso_csum(struct sk_buff *skb, struct net_device *dev) |
| 2119 | { |
| 2120 | if (dev->features & NETIF_F_TSO) { |
| 2121 | u32 mss = skb_shinfo(skb)->tso_size; |
| 2122 | |
| 2123 | if (mss) |
| 2124 | return LargeSend | ((mss & MSSMask) << MSSShift); |
| 2125 | } |
| 2126 | if (skb->ip_summed == CHECKSUM_HW) { |
| 2127 | const struct iphdr *ip = skb->nh.iph; |
| 2128 | |
| 2129 | if (ip->protocol == IPPROTO_TCP) |
| 2130 | return IPCS | TCPCS; |
| 2131 | else if (ip->protocol == IPPROTO_UDP) |
| 2132 | return IPCS | UDPCS; |
| 2133 | WARN_ON(1); /* we need a WARN() */ |
| 2134 | } |
| 2135 | return 0; |
| 2136 | } |
| 2137 | |
| 2138 | static int rtl8169_start_xmit(struct sk_buff *skb, struct net_device *dev) |
| 2139 | { |
| 2140 | struct rtl8169_private *tp = netdev_priv(dev); |
| 2141 | unsigned int frags, entry = tp->cur_tx % NUM_TX_DESC; |
| 2142 | struct TxDesc *txd = tp->TxDescArray + entry; |
| 2143 | void __iomem *ioaddr = tp->mmio_addr; |
| 2144 | dma_addr_t mapping; |
| 2145 | u32 status, len; |
| 2146 | u32 opts1; |
| 2147 | int ret = 0; |
| 2148 | |
| 2149 | if (unlikely(TX_BUFFS_AVAIL(tp) < skb_shinfo(skb)->nr_frags)) { |
Stephen Hemminger | b57b7e5 | 2005-05-27 21:11:52 +0200 | [diff] [blame] | 2150 | if (netif_msg_drv(tp)) { |
| 2151 | printk(KERN_ERR |
| 2152 | "%s: BUG! Tx Ring full when queue awake!\n", |
| 2153 | dev->name); |
| 2154 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2155 | goto err_stop; |
| 2156 | } |
| 2157 | |
| 2158 | if (unlikely(le32_to_cpu(txd->opts1) & DescOwn)) |
| 2159 | goto err_stop; |
| 2160 | |
| 2161 | opts1 = DescOwn | rtl8169_tso_csum(skb, dev); |
| 2162 | |
| 2163 | frags = rtl8169_xmit_frags(tp, skb, opts1); |
| 2164 | if (frags) { |
| 2165 | len = skb_headlen(skb); |
| 2166 | opts1 |= FirstFrag; |
| 2167 | } else { |
| 2168 | len = skb->len; |
| 2169 | |
| 2170 | if (unlikely(len < ETH_ZLEN)) { |
| 2171 | skb = skb_padto(skb, ETH_ZLEN); |
| 2172 | if (!skb) |
| 2173 | goto err_update_stats; |
| 2174 | len = ETH_ZLEN; |
| 2175 | } |
| 2176 | |
| 2177 | opts1 |= FirstFrag | LastFrag; |
| 2178 | tp->tx_skb[entry].skb = skb; |
| 2179 | } |
| 2180 | |
| 2181 | mapping = pci_map_single(tp->pci_dev, skb->data, len, PCI_DMA_TODEVICE); |
| 2182 | |
| 2183 | tp->tx_skb[entry].len = len; |
| 2184 | txd->addr = cpu_to_le64(mapping); |
| 2185 | txd->opts2 = cpu_to_le32(rtl8169_tx_vlan_tag(tp, skb)); |
| 2186 | |
| 2187 | wmb(); |
| 2188 | |
| 2189 | /* anti gcc 2.95.3 bugware (sic) */ |
| 2190 | status = opts1 | len | (RingEnd * !((entry + 1) % NUM_TX_DESC)); |
| 2191 | txd->opts1 = cpu_to_le32(status); |
| 2192 | |
| 2193 | dev->trans_start = jiffies; |
| 2194 | |
| 2195 | tp->cur_tx += frags + 1; |
| 2196 | |
| 2197 | smp_wmb(); |
| 2198 | |
| 2199 | RTL_W8(TxPoll, 0x40); /* set polling bit */ |
| 2200 | |
| 2201 | if (TX_BUFFS_AVAIL(tp) < MAX_SKB_FRAGS) { |
| 2202 | netif_stop_queue(dev); |
| 2203 | smp_rmb(); |
| 2204 | if (TX_BUFFS_AVAIL(tp) >= MAX_SKB_FRAGS) |
| 2205 | netif_wake_queue(dev); |
| 2206 | } |
| 2207 | |
| 2208 | out: |
| 2209 | return ret; |
| 2210 | |
| 2211 | err_stop: |
| 2212 | netif_stop_queue(dev); |
| 2213 | ret = 1; |
| 2214 | err_update_stats: |
| 2215 | tp->stats.tx_dropped++; |
| 2216 | goto out; |
| 2217 | } |
| 2218 | |
| 2219 | static void rtl8169_pcierr_interrupt(struct net_device *dev) |
| 2220 | { |
| 2221 | struct rtl8169_private *tp = netdev_priv(dev); |
| 2222 | struct pci_dev *pdev = tp->pci_dev; |
| 2223 | void __iomem *ioaddr = tp->mmio_addr; |
| 2224 | u16 pci_status, pci_cmd; |
| 2225 | |
| 2226 | pci_read_config_word(pdev, PCI_COMMAND, &pci_cmd); |
| 2227 | pci_read_config_word(pdev, PCI_STATUS, &pci_status); |
| 2228 | |
Stephen Hemminger | b57b7e5 | 2005-05-27 21:11:52 +0200 | [diff] [blame] | 2229 | if (netif_msg_intr(tp)) { |
| 2230 | printk(KERN_ERR |
| 2231 | "%s: PCI error (cmd = 0x%04x, status = 0x%04x).\n", |
| 2232 | dev->name, pci_cmd, pci_status); |
| 2233 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2234 | |
| 2235 | /* |
| 2236 | * The recovery sequence below admits a very elaborated explanation: |
| 2237 | * - it seems to work; |
| 2238 | * - I did not see what else could be done. |
| 2239 | * |
| 2240 | * Feel free to adjust to your needs. |
| 2241 | */ |
| 2242 | pci_write_config_word(pdev, PCI_COMMAND, |
| 2243 | pci_cmd | PCI_COMMAND_SERR | PCI_COMMAND_PARITY); |
| 2244 | |
| 2245 | pci_write_config_word(pdev, PCI_STATUS, |
| 2246 | pci_status & (PCI_STATUS_DETECTED_PARITY | |
| 2247 | PCI_STATUS_SIG_SYSTEM_ERROR | PCI_STATUS_REC_MASTER_ABORT | |
| 2248 | PCI_STATUS_REC_TARGET_ABORT | PCI_STATUS_SIG_TARGET_ABORT)); |
| 2249 | |
| 2250 | /* The infamous DAC f*ckup only happens at boot time */ |
| 2251 | if ((tp->cp_cmd & PCIDAC) && !tp->dirty_rx && !tp->cur_rx) { |
Stephen Hemminger | b57b7e5 | 2005-05-27 21:11:52 +0200 | [diff] [blame] | 2252 | if (netif_msg_intr(tp)) |
| 2253 | printk(KERN_INFO "%s: disabling PCI DAC.\n", dev->name); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2254 | tp->cp_cmd &= ~PCIDAC; |
| 2255 | RTL_W16(CPlusCmd, tp->cp_cmd); |
| 2256 | dev->features &= ~NETIF_F_HIGHDMA; |
| 2257 | rtl8169_schedule_work(dev, rtl8169_reinit_task); |
| 2258 | } |
| 2259 | |
| 2260 | rtl8169_hw_reset(ioaddr); |
| 2261 | } |
| 2262 | |
| 2263 | static void |
| 2264 | rtl8169_tx_interrupt(struct net_device *dev, struct rtl8169_private *tp, |
| 2265 | void __iomem *ioaddr) |
| 2266 | { |
| 2267 | unsigned int dirty_tx, tx_left; |
| 2268 | |
| 2269 | assert(dev != NULL); |
| 2270 | assert(tp != NULL); |
| 2271 | assert(ioaddr != NULL); |
| 2272 | |
| 2273 | dirty_tx = tp->dirty_tx; |
| 2274 | smp_rmb(); |
| 2275 | tx_left = tp->cur_tx - dirty_tx; |
| 2276 | |
| 2277 | while (tx_left > 0) { |
| 2278 | unsigned int entry = dirty_tx % NUM_TX_DESC; |
| 2279 | struct ring_info *tx_skb = tp->tx_skb + entry; |
| 2280 | u32 len = tx_skb->len; |
| 2281 | u32 status; |
| 2282 | |
| 2283 | rmb(); |
| 2284 | status = le32_to_cpu(tp->TxDescArray[entry].opts1); |
| 2285 | if (status & DescOwn) |
| 2286 | break; |
| 2287 | |
| 2288 | tp->stats.tx_bytes += len; |
| 2289 | tp->stats.tx_packets++; |
| 2290 | |
| 2291 | rtl8169_unmap_tx_skb(tp->pci_dev, tx_skb, tp->TxDescArray + entry); |
| 2292 | |
| 2293 | if (status & LastFrag) { |
| 2294 | dev_kfree_skb_irq(tx_skb->skb); |
| 2295 | tx_skb->skb = NULL; |
| 2296 | } |
| 2297 | dirty_tx++; |
| 2298 | tx_left--; |
| 2299 | } |
| 2300 | |
| 2301 | if (tp->dirty_tx != dirty_tx) { |
| 2302 | tp->dirty_tx = dirty_tx; |
| 2303 | smp_wmb(); |
| 2304 | if (netif_queue_stopped(dev) && |
| 2305 | (TX_BUFFS_AVAIL(tp) >= MAX_SKB_FRAGS)) { |
| 2306 | netif_wake_queue(dev); |
| 2307 | } |
| 2308 | } |
| 2309 | } |
| 2310 | |
Francois Romieu | 126fa4b | 2005-05-12 20:09:17 -0400 | [diff] [blame] | 2311 | static inline int rtl8169_fragmented_frame(u32 status) |
| 2312 | { |
| 2313 | return (status & (FirstFrag | LastFrag)) != (FirstFrag | LastFrag); |
| 2314 | } |
| 2315 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2316 | static inline void rtl8169_rx_csum(struct sk_buff *skb, struct RxDesc *desc) |
| 2317 | { |
| 2318 | u32 opts1 = le32_to_cpu(desc->opts1); |
| 2319 | u32 status = opts1 & RxProtoMask; |
| 2320 | |
| 2321 | if (((status == RxProtoTCP) && !(opts1 & TCPFail)) || |
| 2322 | ((status == RxProtoUDP) && !(opts1 & UDPFail)) || |
| 2323 | ((status == RxProtoIP) && !(opts1 & IPFail))) |
| 2324 | skb->ip_summed = CHECKSUM_UNNECESSARY; |
| 2325 | else |
| 2326 | skb->ip_summed = CHECKSUM_NONE; |
| 2327 | } |
| 2328 | |
| 2329 | static inline int rtl8169_try_rx_copy(struct sk_buff **sk_buff, int pkt_size, |
| 2330 | struct RxDesc *desc, int rx_buf_sz) |
| 2331 | { |
| 2332 | int ret = -1; |
| 2333 | |
| 2334 | if (pkt_size < rx_copybreak) { |
| 2335 | struct sk_buff *skb; |
| 2336 | |
| 2337 | skb = dev_alloc_skb(pkt_size + NET_IP_ALIGN); |
| 2338 | if (skb) { |
| 2339 | skb_reserve(skb, NET_IP_ALIGN); |
David S. Miller | 689be43 | 2005-06-28 15:25:31 -0700 | [diff] [blame] | 2340 | eth_copy_and_sum(skb, sk_buff[0]->data, pkt_size, 0); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2341 | *sk_buff = skb; |
| 2342 | rtl8169_mark_to_asic(desc, rx_buf_sz); |
| 2343 | ret = 0; |
| 2344 | } |
| 2345 | } |
| 2346 | return ret; |
| 2347 | } |
| 2348 | |
| 2349 | static int |
| 2350 | rtl8169_rx_interrupt(struct net_device *dev, struct rtl8169_private *tp, |
| 2351 | void __iomem *ioaddr) |
| 2352 | { |
| 2353 | unsigned int cur_rx, rx_left; |
| 2354 | unsigned int delta, count; |
| 2355 | |
| 2356 | assert(dev != NULL); |
| 2357 | assert(tp != NULL); |
| 2358 | assert(ioaddr != NULL); |
| 2359 | |
| 2360 | cur_rx = tp->cur_rx; |
| 2361 | rx_left = NUM_RX_DESC + tp->dirty_rx - cur_rx; |
| 2362 | rx_left = rtl8169_rx_quota(rx_left, (u32) dev->quota); |
| 2363 | |
Richard Dawe | 4dcb7d3 | 2005-05-27 21:12:00 +0200 | [diff] [blame] | 2364 | for (; rx_left > 0; rx_left--, cur_rx++) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2365 | unsigned int entry = cur_rx % NUM_RX_DESC; |
Francois Romieu | 126fa4b | 2005-05-12 20:09:17 -0400 | [diff] [blame] | 2366 | struct RxDesc *desc = tp->RxDescArray + entry; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2367 | u32 status; |
| 2368 | |
| 2369 | rmb(); |
Francois Romieu | 126fa4b | 2005-05-12 20:09:17 -0400 | [diff] [blame] | 2370 | status = le32_to_cpu(desc->opts1); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2371 | |
| 2372 | if (status & DescOwn) |
| 2373 | break; |
Richard Dawe | 4dcb7d3 | 2005-05-27 21:12:00 +0200 | [diff] [blame] | 2374 | if (unlikely(status & RxRES)) { |
Stephen Hemminger | b57b7e5 | 2005-05-27 21:11:52 +0200 | [diff] [blame] | 2375 | if (netif_msg_rx_err(tp)) { |
| 2376 | printk(KERN_INFO |
| 2377 | "%s: Rx ERROR. status = %08x\n", |
| 2378 | dev->name, status); |
| 2379 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2380 | tp->stats.rx_errors++; |
| 2381 | if (status & (RxRWT | RxRUNT)) |
| 2382 | tp->stats.rx_length_errors++; |
| 2383 | if (status & RxCRC) |
| 2384 | tp->stats.rx_crc_errors++; |
Francois Romieu | 126fa4b | 2005-05-12 20:09:17 -0400 | [diff] [blame] | 2385 | rtl8169_mark_to_asic(desc, tp->rx_buf_sz); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2386 | } else { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2387 | struct sk_buff *skb = tp->Rx_skbuff[entry]; |
| 2388 | int pkt_size = (status & 0x00001FFF) - 4; |
| 2389 | void (*pci_action)(struct pci_dev *, dma_addr_t, |
| 2390 | size_t, int) = pci_dma_sync_single_for_device; |
| 2391 | |
Francois Romieu | 126fa4b | 2005-05-12 20:09:17 -0400 | [diff] [blame] | 2392 | /* |
| 2393 | * The driver does not support incoming fragmented |
| 2394 | * frames. They are seen as a symptom of over-mtu |
| 2395 | * sized frames. |
| 2396 | */ |
| 2397 | if (unlikely(rtl8169_fragmented_frame(status))) { |
| 2398 | tp->stats.rx_dropped++; |
| 2399 | tp->stats.rx_length_errors++; |
| 2400 | rtl8169_mark_to_asic(desc, tp->rx_buf_sz); |
Richard Dawe | 4dcb7d3 | 2005-05-27 21:12:00 +0200 | [diff] [blame] | 2401 | continue; |
Francois Romieu | 126fa4b | 2005-05-12 20:09:17 -0400 | [diff] [blame] | 2402 | } |
| 2403 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2404 | rtl8169_rx_csum(skb, desc); |
| 2405 | |
| 2406 | pci_dma_sync_single_for_cpu(tp->pci_dev, |
| 2407 | le64_to_cpu(desc->addr), tp->rx_buf_sz, |
| 2408 | PCI_DMA_FROMDEVICE); |
| 2409 | |
| 2410 | if (rtl8169_try_rx_copy(&skb, pkt_size, desc, |
| 2411 | tp->rx_buf_sz)) { |
| 2412 | pci_action = pci_unmap_single; |
| 2413 | tp->Rx_skbuff[entry] = NULL; |
| 2414 | } |
| 2415 | |
| 2416 | pci_action(tp->pci_dev, le64_to_cpu(desc->addr), |
| 2417 | tp->rx_buf_sz, PCI_DMA_FROMDEVICE); |
| 2418 | |
| 2419 | skb->dev = dev; |
| 2420 | skb_put(skb, pkt_size); |
| 2421 | skb->protocol = eth_type_trans(skb, dev); |
| 2422 | |
| 2423 | if (rtl8169_rx_vlan_skb(tp, desc, skb) < 0) |
| 2424 | rtl8169_rx_skb(skb); |
| 2425 | |
| 2426 | dev->last_rx = jiffies; |
| 2427 | tp->stats.rx_bytes += pkt_size; |
| 2428 | tp->stats.rx_packets++; |
| 2429 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2430 | } |
| 2431 | |
| 2432 | count = cur_rx - tp->cur_rx; |
| 2433 | tp->cur_rx = cur_rx; |
| 2434 | |
| 2435 | delta = rtl8169_rx_fill(tp, dev, tp->dirty_rx, tp->cur_rx); |
Stephen Hemminger | b57b7e5 | 2005-05-27 21:11:52 +0200 | [diff] [blame] | 2436 | if (!delta && count && netif_msg_intr(tp)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2437 | printk(KERN_INFO "%s: no Rx buffer allocated\n", dev->name); |
| 2438 | tp->dirty_rx += delta; |
| 2439 | |
| 2440 | /* |
| 2441 | * FIXME: until there is periodic timer to try and refill the ring, |
| 2442 | * a temporary shortage may definitely kill the Rx process. |
| 2443 | * - disable the asic to try and avoid an overflow and kick it again |
| 2444 | * after refill ? |
| 2445 | * - how do others driver handle this condition (Uh oh...). |
| 2446 | */ |
Stephen Hemminger | b57b7e5 | 2005-05-27 21:11:52 +0200 | [diff] [blame] | 2447 | if ((tp->dirty_rx + NUM_RX_DESC == tp->cur_rx) && netif_msg_intr(tp)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2448 | printk(KERN_EMERG "%s: Rx buffers exhausted\n", dev->name); |
| 2449 | |
| 2450 | return count; |
| 2451 | } |
| 2452 | |
| 2453 | /* The interrupt handler does all of the Rx thread work and cleans up after the Tx thread. */ |
| 2454 | static irqreturn_t |
| 2455 | rtl8169_interrupt(int irq, void *dev_instance, struct pt_regs *regs) |
| 2456 | { |
| 2457 | struct net_device *dev = (struct net_device *) dev_instance; |
| 2458 | struct rtl8169_private *tp = netdev_priv(dev); |
| 2459 | int boguscnt = max_interrupt_work; |
| 2460 | void __iomem *ioaddr = tp->mmio_addr; |
| 2461 | int status; |
| 2462 | int handled = 0; |
| 2463 | |
| 2464 | do { |
| 2465 | status = RTL_R16(IntrStatus); |
| 2466 | |
| 2467 | /* hotplug/major error/no more work/shared irq */ |
| 2468 | if ((status == 0xFFFF) || !status) |
| 2469 | break; |
| 2470 | |
| 2471 | handled = 1; |
| 2472 | |
| 2473 | if (unlikely(!netif_running(dev))) { |
| 2474 | rtl8169_asic_down(ioaddr); |
| 2475 | goto out; |
| 2476 | } |
| 2477 | |
| 2478 | status &= tp->intr_mask; |
| 2479 | RTL_W16(IntrStatus, |
| 2480 | (status & RxFIFOOver) ? (status | RxOverflow) : status); |
| 2481 | |
| 2482 | if (!(status & rtl8169_intr_mask)) |
| 2483 | break; |
| 2484 | |
| 2485 | if (unlikely(status & SYSErr)) { |
| 2486 | rtl8169_pcierr_interrupt(dev); |
| 2487 | break; |
| 2488 | } |
| 2489 | |
| 2490 | if (status & LinkChg) |
| 2491 | rtl8169_check_link_status(dev, tp, ioaddr); |
| 2492 | |
| 2493 | #ifdef CONFIG_R8169_NAPI |
| 2494 | RTL_W16(IntrMask, rtl8169_intr_mask & ~rtl8169_napi_event); |
| 2495 | tp->intr_mask = ~rtl8169_napi_event; |
| 2496 | |
| 2497 | if (likely(netif_rx_schedule_prep(dev))) |
| 2498 | __netif_rx_schedule(dev); |
Stephen Hemminger | b57b7e5 | 2005-05-27 21:11:52 +0200 | [diff] [blame] | 2499 | else if (netif_msg_intr(tp)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2500 | printk(KERN_INFO "%s: interrupt %04x taken in poll\n", |
| 2501 | dev->name, status); |
| 2502 | } |
| 2503 | break; |
| 2504 | #else |
| 2505 | /* Rx interrupt */ |
| 2506 | if (status & (RxOK | RxOverflow | RxFIFOOver)) { |
| 2507 | rtl8169_rx_interrupt(dev, tp, ioaddr); |
| 2508 | } |
| 2509 | /* Tx interrupt */ |
| 2510 | if (status & (TxOK | TxErr)) |
| 2511 | rtl8169_tx_interrupt(dev, tp, ioaddr); |
| 2512 | #endif |
| 2513 | |
| 2514 | boguscnt--; |
| 2515 | } while (boguscnt > 0); |
| 2516 | |
| 2517 | if (boguscnt <= 0) { |
Stephen Hemminger | b57b7e5 | 2005-05-27 21:11:52 +0200 | [diff] [blame] | 2518 | if (net_ratelimit() && netif_msg_intr(tp)) { |
| 2519 | printk(KERN_WARNING |
| 2520 | "%s: Too much work at interrupt!\n", dev->name); |
| 2521 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2522 | /* Clear all interrupt sources. */ |
| 2523 | RTL_W16(IntrStatus, 0xffff); |
| 2524 | } |
| 2525 | out: |
| 2526 | return IRQ_RETVAL(handled); |
| 2527 | } |
| 2528 | |
| 2529 | #ifdef CONFIG_R8169_NAPI |
| 2530 | static int rtl8169_poll(struct net_device *dev, int *budget) |
| 2531 | { |
| 2532 | unsigned int work_done, work_to_do = min(*budget, dev->quota); |
| 2533 | struct rtl8169_private *tp = netdev_priv(dev); |
| 2534 | void __iomem *ioaddr = tp->mmio_addr; |
| 2535 | |
| 2536 | work_done = rtl8169_rx_interrupt(dev, tp, ioaddr); |
| 2537 | rtl8169_tx_interrupt(dev, tp, ioaddr); |
| 2538 | |
| 2539 | *budget -= work_done; |
| 2540 | dev->quota -= work_done; |
| 2541 | |
| 2542 | if (work_done < work_to_do) { |
| 2543 | netif_rx_complete(dev); |
| 2544 | tp->intr_mask = 0xffff; |
| 2545 | /* |
| 2546 | * 20040426: the barrier is not strictly required but the |
| 2547 | * behavior of the irq handler could be less predictable |
| 2548 | * without it. Btw, the lack of flush for the posted pci |
| 2549 | * write is safe - FR |
| 2550 | */ |
| 2551 | smp_wmb(); |
| 2552 | RTL_W16(IntrMask, rtl8169_intr_mask); |
| 2553 | } |
| 2554 | |
| 2555 | return (work_done >= work_to_do); |
| 2556 | } |
| 2557 | #endif |
| 2558 | |
| 2559 | static void rtl8169_down(struct net_device *dev) |
| 2560 | { |
| 2561 | struct rtl8169_private *tp = netdev_priv(dev); |
| 2562 | void __iomem *ioaddr = tp->mmio_addr; |
| 2563 | unsigned int poll_locked = 0; |
| 2564 | |
| 2565 | rtl8169_delete_timer(dev); |
| 2566 | |
| 2567 | netif_stop_queue(dev); |
| 2568 | |
| 2569 | flush_scheduled_work(); |
| 2570 | |
| 2571 | core_down: |
| 2572 | spin_lock_irq(&tp->lock); |
| 2573 | |
| 2574 | rtl8169_asic_down(ioaddr); |
| 2575 | |
| 2576 | /* Update the error counts. */ |
| 2577 | tp->stats.rx_missed_errors += RTL_R32(RxMissed); |
| 2578 | RTL_W32(RxMissed, 0); |
| 2579 | |
| 2580 | spin_unlock_irq(&tp->lock); |
| 2581 | |
| 2582 | synchronize_irq(dev->irq); |
| 2583 | |
| 2584 | if (!poll_locked) { |
| 2585 | netif_poll_disable(dev); |
| 2586 | poll_locked++; |
| 2587 | } |
| 2588 | |
| 2589 | /* Give a racing hard_start_xmit a few cycles to complete. */ |
Paul E. McKenney | fbd568a3e | 2005-05-01 08:59:04 -0700 | [diff] [blame] | 2590 | synchronize_sched(); /* FIXME: should this be synchronize_irq()? */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2591 | |
| 2592 | /* |
| 2593 | * And now for the 50k$ question: are IRQ disabled or not ? |
| 2594 | * |
| 2595 | * Two paths lead here: |
| 2596 | * 1) dev->close |
| 2597 | * -> netif_running() is available to sync the current code and the |
| 2598 | * IRQ handler. See rtl8169_interrupt for details. |
| 2599 | * 2) dev->change_mtu |
| 2600 | * -> rtl8169_poll can not be issued again and re-enable the |
| 2601 | * interruptions. Let's simply issue the IRQ down sequence again. |
| 2602 | */ |
| 2603 | if (RTL_R16(IntrMask)) |
| 2604 | goto core_down; |
| 2605 | |
| 2606 | rtl8169_tx_clear(tp); |
| 2607 | |
| 2608 | rtl8169_rx_clear(tp); |
| 2609 | } |
| 2610 | |
| 2611 | static int rtl8169_close(struct net_device *dev) |
| 2612 | { |
| 2613 | struct rtl8169_private *tp = netdev_priv(dev); |
| 2614 | struct pci_dev *pdev = tp->pci_dev; |
| 2615 | |
| 2616 | rtl8169_down(dev); |
| 2617 | |
| 2618 | free_irq(dev->irq, dev); |
| 2619 | |
| 2620 | netif_poll_enable(dev); |
| 2621 | |
| 2622 | pci_free_consistent(pdev, R8169_RX_RING_BYTES, tp->RxDescArray, |
| 2623 | tp->RxPhyAddr); |
| 2624 | pci_free_consistent(pdev, R8169_TX_RING_BYTES, tp->TxDescArray, |
| 2625 | tp->TxPhyAddr); |
| 2626 | tp->TxDescArray = NULL; |
| 2627 | tp->RxDescArray = NULL; |
| 2628 | |
| 2629 | return 0; |
| 2630 | } |
| 2631 | |
| 2632 | static void |
| 2633 | rtl8169_set_rx_mode(struct net_device *dev) |
| 2634 | { |
| 2635 | struct rtl8169_private *tp = netdev_priv(dev); |
| 2636 | void __iomem *ioaddr = tp->mmio_addr; |
| 2637 | unsigned long flags; |
| 2638 | u32 mc_filter[2]; /* Multicast hash filter */ |
| 2639 | int i, rx_mode; |
| 2640 | u32 tmp = 0; |
| 2641 | |
| 2642 | if (dev->flags & IFF_PROMISC) { |
| 2643 | /* Unconditionally log net taps. */ |
Stephen Hemminger | b57b7e5 | 2005-05-27 21:11:52 +0200 | [diff] [blame] | 2644 | if (netif_msg_link(tp)) { |
| 2645 | printk(KERN_NOTICE "%s: Promiscuous mode enabled.\n", |
| 2646 | dev->name); |
| 2647 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2648 | rx_mode = |
| 2649 | AcceptBroadcast | AcceptMulticast | AcceptMyPhys | |
| 2650 | AcceptAllPhys; |
| 2651 | mc_filter[1] = mc_filter[0] = 0xffffffff; |
| 2652 | } else if ((dev->mc_count > multicast_filter_limit) |
| 2653 | || (dev->flags & IFF_ALLMULTI)) { |
| 2654 | /* Too many to filter perfectly -- accept all multicasts. */ |
| 2655 | rx_mode = AcceptBroadcast | AcceptMulticast | AcceptMyPhys; |
| 2656 | mc_filter[1] = mc_filter[0] = 0xffffffff; |
| 2657 | } else { |
| 2658 | struct dev_mc_list *mclist; |
| 2659 | rx_mode = AcceptBroadcast | AcceptMyPhys; |
| 2660 | mc_filter[1] = mc_filter[0] = 0; |
| 2661 | for (i = 0, mclist = dev->mc_list; mclist && i < dev->mc_count; |
| 2662 | i++, mclist = mclist->next) { |
| 2663 | int bit_nr = ether_crc(ETH_ALEN, mclist->dmi_addr) >> 26; |
| 2664 | mc_filter[bit_nr >> 5] |= 1 << (bit_nr & 31); |
| 2665 | rx_mode |= AcceptMulticast; |
| 2666 | } |
| 2667 | } |
| 2668 | |
| 2669 | spin_lock_irqsave(&tp->lock, flags); |
| 2670 | |
| 2671 | tmp = rtl8169_rx_config | rx_mode | |
| 2672 | (RTL_R32(RxConfig) & rtl_chip_info[tp->chipset].RxConfigMask); |
| 2673 | |
| 2674 | RTL_W32(RxConfig, tmp); |
| 2675 | RTL_W32(MAR0 + 0, mc_filter[0]); |
| 2676 | RTL_W32(MAR0 + 4, mc_filter[1]); |
| 2677 | |
| 2678 | spin_unlock_irqrestore(&tp->lock, flags); |
| 2679 | } |
| 2680 | |
| 2681 | /** |
| 2682 | * rtl8169_get_stats - Get rtl8169 read/write statistics |
| 2683 | * @dev: The Ethernet Device to get statistics for |
| 2684 | * |
| 2685 | * Get TX/RX statistics for rtl8169 |
| 2686 | */ |
| 2687 | static struct net_device_stats *rtl8169_get_stats(struct net_device *dev) |
| 2688 | { |
| 2689 | struct rtl8169_private *tp = netdev_priv(dev); |
| 2690 | void __iomem *ioaddr = tp->mmio_addr; |
| 2691 | unsigned long flags; |
| 2692 | |
| 2693 | if (netif_running(dev)) { |
| 2694 | spin_lock_irqsave(&tp->lock, flags); |
| 2695 | tp->stats.rx_missed_errors += RTL_R32(RxMissed); |
| 2696 | RTL_W32(RxMissed, 0); |
| 2697 | spin_unlock_irqrestore(&tp->lock, flags); |
| 2698 | } |
| 2699 | |
| 2700 | return &tp->stats; |
| 2701 | } |
| 2702 | |
| 2703 | static struct pci_driver rtl8169_pci_driver = { |
| 2704 | .name = MODULENAME, |
| 2705 | .id_table = rtl8169_pci_tbl, |
| 2706 | .probe = rtl8169_init_one, |
| 2707 | .remove = __devexit_p(rtl8169_remove_one), |
| 2708 | #ifdef CONFIG_PM |
| 2709 | .suspend = rtl8169_suspend, |
| 2710 | .resume = rtl8169_resume, |
| 2711 | #endif |
| 2712 | }; |
| 2713 | |
| 2714 | static int __init |
| 2715 | rtl8169_init_module(void) |
| 2716 | { |
| 2717 | return pci_module_init(&rtl8169_pci_driver); |
| 2718 | } |
| 2719 | |
| 2720 | static void __exit |
| 2721 | rtl8169_cleanup_module(void) |
| 2722 | { |
| 2723 | pci_unregister_driver(&rtl8169_pci_driver); |
| 2724 | } |
| 2725 | |
| 2726 | module_init(rtl8169_init_module); |
| 2727 | module_exit(rtl8169_cleanup_module); |