Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
| 2 | |
| 3 | 8139too.c: A RealTek RTL-8139 Fast Ethernet driver for Linux. |
| 4 | |
| 5 | Maintained by Jeff Garzik <jgarzik@pobox.com> |
| 6 | Copyright 2000-2002 Jeff Garzik |
| 7 | |
| 8 | Much code comes from Donald Becker's rtl8139.c driver, |
| 9 | versions 1.13 and older. This driver was originally based |
| 10 | on rtl8139.c version 1.07. Header of rtl8139.c version 1.13: |
| 11 | |
| 12 | -----<snip>----- |
| 13 | |
| 14 | Written 1997-2001 by Donald Becker. |
| 15 | This software may be used and distributed according to the |
| 16 | terms of the GNU General Public License (GPL), incorporated |
| 17 | herein by reference. Drivers based on or derived from this |
| 18 | code fall under the GPL and must retain the authorship, |
| 19 | copyright and license notice. This file is not a complete |
| 20 | program and may only be used when the entire operating |
| 21 | system is licensed under the GPL. |
| 22 | |
| 23 | This driver is for boards based on the RTL8129 and RTL8139 |
| 24 | PCI ethernet chips. |
| 25 | |
| 26 | The author may be reached as becker@scyld.com, or C/O Scyld |
| 27 | Computing Corporation 410 Severn Ave., Suite 210 Annapolis |
| 28 | MD 21403 |
| 29 | |
| 30 | Support and updates available at |
| 31 | http://www.scyld.com/network/rtl8139.html |
| 32 | |
| 33 | Twister-tuning table provided by Kinston |
| 34 | <shangh@realtek.com.tw>. |
| 35 | |
| 36 | -----<snip>----- |
| 37 | |
| 38 | This software may be used and distributed according to the terms |
| 39 | of the GNU General Public License, incorporated herein by reference. |
| 40 | |
| 41 | Contributors: |
| 42 | |
| 43 | Donald Becker - he wrote the original driver, kudos to him! |
| 44 | (but please don't e-mail him for support, this isn't his driver) |
| 45 | |
| 46 | Tigran Aivazian - bug fixes, skbuff free cleanup |
| 47 | |
| 48 | Martin Mares - suggestions for PCI cleanup |
| 49 | |
| 50 | David S. Miller - PCI DMA and softnet updates |
| 51 | |
| 52 | Ernst Gill - fixes ported from BSD driver |
| 53 | |
| 54 | Daniel Kobras - identified specific locations of |
| 55 | posted MMIO write bugginess |
| 56 | |
| 57 | Gerard Sharp - bug fix, testing and feedback |
| 58 | |
| 59 | David Ford - Rx ring wrap fix |
| 60 | |
| 61 | Dan DeMaggio - swapped RTL8139 cards with me, and allowed me |
| 62 | to find and fix a crucial bug on older chipsets. |
| 63 | |
| 64 | Donald Becker/Chris Butterworth/Marcus Westergren - |
| 65 | Noticed various Rx packet size-related buglets. |
| 66 | |
| 67 | Santiago Garcia Mantinan - testing and feedback |
| 68 | |
| 69 | Jens David - 2.2.x kernel backports |
| 70 | |
| 71 | Martin Dennett - incredibly helpful insight on undocumented |
| 72 | features of the 8139 chips |
| 73 | |
| 74 | Jean-Jacques Michel - bug fix |
| 75 | |
| 76 | Tobias Ringström - Rx interrupt status checking suggestion |
| 77 | |
| 78 | Andrew Morton - Clear blocked signals, avoid |
| 79 | buffer overrun setting current->comm. |
| 80 | |
| 81 | Kalle Olavi Niemitalo - Wake-on-LAN ioctls |
| 82 | |
| 83 | Robert Kuebel - Save kernel thread from dying on any signal. |
| 84 | |
| 85 | Submitting bug reports: |
| 86 | |
| 87 | "rtl8139-diag -mmmaaavvveefN" output |
| 88 | enable RTL8139_DEBUG below, and look at 'dmesg' or kernel log |
| 89 | |
| 90 | */ |
| 91 | |
| 92 | #define DRV_NAME "8139too" |
Andy Gospodarek | d5b2069 | 2006-09-11 17:39:18 -0400 | [diff] [blame] | 93 | #define DRV_VERSION "0.9.28" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 94 | |
| 95 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 96 | #include <linux/module.h> |
| 97 | #include <linux/kernel.h> |
| 98 | #include <linux/compiler.h> |
| 99 | #include <linux/pci.h> |
| 100 | #include <linux/init.h> |
| 101 | #include <linux/ioport.h> |
| 102 | #include <linux/netdevice.h> |
| 103 | #include <linux/etherdevice.h> |
| 104 | #include <linux/rtnetlink.h> |
| 105 | #include <linux/delay.h> |
| 106 | #include <linux/ethtool.h> |
| 107 | #include <linux/mii.h> |
| 108 | #include <linux/completion.h> |
| 109 | #include <linux/crc32.h> |
| 110 | #include <asm/io.h> |
| 111 | #include <asm/uaccess.h> |
| 112 | #include <asm/irq.h> |
| 113 | |
| 114 | #define RTL8139_DRIVER_NAME DRV_NAME " Fast Ethernet driver " DRV_VERSION |
| 115 | #define PFX DRV_NAME ": " |
| 116 | |
| 117 | /* Default Message level */ |
| 118 | #define RTL8139_DEF_MSG_ENABLE (NETIF_MSG_DRV | \ |
| 119 | NETIF_MSG_PROBE | \ |
| 120 | NETIF_MSG_LINK) |
| 121 | |
| 122 | |
| 123 | /* enable PIO instead of MMIO, if CONFIG_8139TOO_PIO is selected */ |
| 124 | #ifdef CONFIG_8139TOO_PIO |
| 125 | #define USE_IO_OPS 1 |
| 126 | #endif |
| 127 | |
Olaf Hering | 44456d3 | 2005-07-27 11:45:17 -0700 | [diff] [blame] | 128 | /* define to 1, 2 or 3 to enable copious debugging info */ |
| 129 | #define RTL8139_DEBUG 0 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 130 | |
| 131 | /* define to 1 to disable lightweight runtime debugging checks */ |
| 132 | #undef RTL8139_NDEBUG |
| 133 | |
| 134 | |
Olaf Hering | 44456d3 | 2005-07-27 11:45:17 -0700 | [diff] [blame] | 135 | #if RTL8139_DEBUG |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 136 | /* note: prints function name for you */ |
| 137 | # define DPRINTK(fmt, args...) printk(KERN_DEBUG "%s: " fmt, __FUNCTION__ , ## args) |
| 138 | #else |
| 139 | # define DPRINTK(fmt, args...) |
| 140 | #endif |
| 141 | |
| 142 | #ifdef RTL8139_NDEBUG |
| 143 | # define assert(expr) do {} while (0) |
| 144 | #else |
| 145 | # define assert(expr) \ |
| 146 | if(unlikely(!(expr))) { \ |
| 147 | printk(KERN_ERR "Assertion failed! %s,%s,%s,line=%d\n", \ |
| 148 | #expr,__FILE__,__FUNCTION__,__LINE__); \ |
| 149 | } |
| 150 | #endif |
| 151 | |
| 152 | |
| 153 | /* A few user-configurable values. */ |
| 154 | /* media options */ |
| 155 | #define MAX_UNITS 8 |
| 156 | static int media[MAX_UNITS] = {-1, -1, -1, -1, -1, -1, -1, -1}; |
| 157 | static int full_duplex[MAX_UNITS] = {-1, -1, -1, -1, -1, -1, -1, -1}; |
| 158 | |
| 159 | /* Maximum number of multicast addresses to filter (vs. Rx-all-multicast). |
| 160 | The RTL chips use a 64 element hash table based on the Ethernet CRC. */ |
| 161 | static int multicast_filter_limit = 32; |
| 162 | |
| 163 | /* bitmapped message enable number */ |
| 164 | static int debug = -1; |
| 165 | |
| 166 | /* |
Jeff Garzik | f3b197a | 2006-05-26 21:39:03 -0400 | [diff] [blame] | 167 | * Receive ring size |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 168 | * Warning: 64K ring has hardware issues and may lock up. |
| 169 | */ |
| 170 | #if defined(CONFIG_SH_DREAMCAST) |
| 171 | #define RX_BUF_IDX 1 /* 16K ring */ |
| 172 | #else |
| 173 | #define RX_BUF_IDX 2 /* 32K ring */ |
| 174 | #endif |
| 175 | #define RX_BUF_LEN (8192 << RX_BUF_IDX) |
| 176 | #define RX_BUF_PAD 16 |
| 177 | #define RX_BUF_WRAP_PAD 2048 /* spare padding to handle lack of packet wrap */ |
| 178 | |
| 179 | #if RX_BUF_LEN == 65536 |
| 180 | #define RX_BUF_TOT_LEN RX_BUF_LEN |
| 181 | #else |
| 182 | #define RX_BUF_TOT_LEN (RX_BUF_LEN + RX_BUF_PAD + RX_BUF_WRAP_PAD) |
| 183 | #endif |
| 184 | |
| 185 | /* Number of Tx descriptor registers. */ |
| 186 | #define NUM_TX_DESC 4 |
| 187 | |
| 188 | /* max supported ethernet frame size -- must be at least (dev->mtu+14+4).*/ |
| 189 | #define MAX_ETH_FRAME_SIZE 1536 |
| 190 | |
| 191 | /* Size of the Tx bounce buffers -- must be at least (dev->mtu+14+4). */ |
| 192 | #define TX_BUF_SIZE MAX_ETH_FRAME_SIZE |
| 193 | #define TX_BUF_TOT_LEN (TX_BUF_SIZE * NUM_TX_DESC) |
| 194 | |
| 195 | /* PCI Tuning Parameters |
| 196 | Threshold is bytes transferred to chip before transmission starts. */ |
| 197 | #define TX_FIFO_THRESH 256 /* In bytes, rounded down to 32 byte units. */ |
| 198 | |
| 199 | /* The following settings are log_2(bytes)-4: 0 == 16 bytes .. 6==1024, 7==end of packet. */ |
| 200 | #define RX_FIFO_THRESH 7 /* Rx buffer level before first PCI xfer. */ |
| 201 | #define RX_DMA_BURST 7 /* Maximum PCI burst, '6' is 1024 */ |
| 202 | #define TX_DMA_BURST 6 /* Maximum PCI burst, '6' is 1024 */ |
| 203 | #define TX_RETRY 8 /* 0-15. retries = 16 + (TX_RETRY * 16) */ |
| 204 | |
| 205 | /* Operational parameters that usually are not changed. */ |
| 206 | /* Time in jiffies before concluding the transmitter is hung. */ |
| 207 | #define TX_TIMEOUT (6*HZ) |
| 208 | |
| 209 | |
| 210 | enum { |
| 211 | HAS_MII_XCVR = 0x010000, |
| 212 | HAS_CHIP_XCVR = 0x020000, |
| 213 | HAS_LNK_CHNG = 0x040000, |
| 214 | }; |
| 215 | |
| 216 | #define RTL_NUM_STATS 4 /* number of ETHTOOL_GSTATS u64's */ |
| 217 | #define RTL_REGS_VER 1 /* version of reg. data in ETHTOOL_GREGS */ |
| 218 | #define RTL_MIN_IO_SIZE 0x80 |
| 219 | #define RTL8139B_IO_SIZE 256 |
| 220 | |
| 221 | #define RTL8129_CAPS HAS_MII_XCVR |
| 222 | #define RTL8139_CAPS HAS_CHIP_XCVR|HAS_LNK_CHNG |
| 223 | |
| 224 | typedef enum { |
| 225 | RTL8139 = 0, |
| 226 | RTL8129, |
| 227 | } board_t; |
| 228 | |
| 229 | |
| 230 | /* indexed by board_t, above */ |
Arjan van de Ven | f71e130 | 2006-03-03 21:33:57 -0500 | [diff] [blame] | 231 | static const struct { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 232 | const char *name; |
| 233 | u32 hw_flags; |
| 234 | } board_info[] __devinitdata = { |
| 235 | { "RealTek RTL8139", RTL8139_CAPS }, |
| 236 | { "RealTek RTL8129", RTL8129_CAPS }, |
| 237 | }; |
| 238 | |
| 239 | |
| 240 | static struct pci_device_id rtl8139_pci_tbl[] = { |
| 241 | {0x10ec, 0x8139, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 }, |
| 242 | {0x10ec, 0x8138, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 }, |
| 243 | {0x1113, 0x1211, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 }, |
| 244 | {0x1500, 0x1360, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 }, |
| 245 | {0x4033, 0x1360, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 }, |
| 246 | {0x1186, 0x1300, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 }, |
| 247 | {0x1186, 0x1340, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 }, |
| 248 | {0x13d1, 0xab06, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 }, |
| 249 | {0x1259, 0xa117, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 }, |
| 250 | {0x1259, 0xa11e, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 }, |
| 251 | {0x14ea, 0xab06, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 }, |
| 252 | {0x14ea, 0xab07, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 }, |
| 253 | {0x11db, 0x1234, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 }, |
| 254 | {0x1432, 0x9130, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 }, |
| 255 | {0x02ac, 0x1012, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 }, |
| 256 | {0x018a, 0x0106, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 }, |
| 257 | {0x126c, 0x1211, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 }, |
| 258 | {0x1743, 0x8139, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 }, |
Jeff Garzik | f3b197a | 2006-05-26 21:39:03 -0400 | [diff] [blame] | 259 | {0x021b, 0x8139, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 }, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 260 | |
| 261 | #ifdef CONFIG_SH_SECUREEDGE5410 |
| 262 | /* Bogus 8139 silicon reports 8129 without external PROM :-( */ |
| 263 | {0x10ec, 0x8129, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 }, |
| 264 | #endif |
| 265 | #ifdef CONFIG_8139TOO_8129 |
| 266 | {0x10ec, 0x8129, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8129 }, |
| 267 | #endif |
| 268 | |
| 269 | /* some crazy cards report invalid vendor ids like |
| 270 | * 0x0001 here. The other ids are valid and constant, |
| 271 | * so we simply don't match on the main vendor id. |
| 272 | */ |
| 273 | {PCI_ANY_ID, 0x8139, 0x10ec, 0x8139, 0, 0, RTL8139 }, |
| 274 | {PCI_ANY_ID, 0x8139, 0x1186, 0x1300, 0, 0, RTL8139 }, |
| 275 | {PCI_ANY_ID, 0x8139, 0x13d1, 0xab06, 0, 0, RTL8139 }, |
| 276 | |
| 277 | {0,} |
| 278 | }; |
| 279 | MODULE_DEVICE_TABLE (pci, rtl8139_pci_tbl); |
| 280 | |
| 281 | static struct { |
| 282 | const char str[ETH_GSTRING_LEN]; |
| 283 | } ethtool_stats_keys[] = { |
| 284 | { "early_rx" }, |
| 285 | { "tx_buf_mapped" }, |
| 286 | { "tx_timeouts" }, |
| 287 | { "rx_lost_in_ring" }, |
| 288 | }; |
| 289 | |
| 290 | /* The rest of these values should never change. */ |
| 291 | |
| 292 | /* Symbolic offsets to registers. */ |
| 293 | enum RTL8139_registers { |
| 294 | MAC0 = 0, /* Ethernet hardware address. */ |
| 295 | MAR0 = 8, /* Multicast filter. */ |
| 296 | TxStatus0 = 0x10, /* Transmit status (Four 32bit registers). */ |
| 297 | TxAddr0 = 0x20, /* Tx descriptors (also four 32bit). */ |
| 298 | RxBuf = 0x30, |
| 299 | ChipCmd = 0x37, |
| 300 | RxBufPtr = 0x38, |
| 301 | RxBufAddr = 0x3A, |
| 302 | IntrMask = 0x3C, |
| 303 | IntrStatus = 0x3E, |
| 304 | TxConfig = 0x40, |
| 305 | RxConfig = 0x44, |
| 306 | Timer = 0x48, /* A general-purpose counter. */ |
| 307 | RxMissed = 0x4C, /* 24 bits valid, write clears. */ |
| 308 | Cfg9346 = 0x50, |
| 309 | Config0 = 0x51, |
| 310 | Config1 = 0x52, |
| 311 | FlashReg = 0x54, |
| 312 | MediaStatus = 0x58, |
| 313 | Config3 = 0x59, |
| 314 | Config4 = 0x5A, /* absent on RTL-8139A */ |
| 315 | HltClk = 0x5B, |
| 316 | MultiIntr = 0x5C, |
| 317 | TxSummary = 0x60, |
| 318 | BasicModeCtrl = 0x62, |
| 319 | BasicModeStatus = 0x64, |
| 320 | NWayAdvert = 0x66, |
| 321 | NWayLPAR = 0x68, |
| 322 | NWayExpansion = 0x6A, |
| 323 | /* Undocumented registers, but required for proper operation. */ |
| 324 | FIFOTMS = 0x70, /* FIFO Control and test. */ |
| 325 | CSCR = 0x74, /* Chip Status and Configuration Register. */ |
| 326 | PARA78 = 0x78, |
| 327 | PARA7c = 0x7c, /* Magic transceiver parameter register. */ |
| 328 | Config5 = 0xD8, /* absent on RTL-8139A */ |
| 329 | }; |
| 330 | |
| 331 | enum ClearBitMasks { |
| 332 | MultiIntrClear = 0xF000, |
| 333 | ChipCmdClear = 0xE2, |
| 334 | Config1Clear = (1<<7)|(1<<6)|(1<<3)|(1<<2)|(1<<1), |
| 335 | }; |
| 336 | |
| 337 | enum ChipCmdBits { |
| 338 | CmdReset = 0x10, |
| 339 | CmdRxEnb = 0x08, |
| 340 | CmdTxEnb = 0x04, |
| 341 | RxBufEmpty = 0x01, |
| 342 | }; |
| 343 | |
| 344 | /* Interrupt register bits, using my own meaningful names. */ |
| 345 | enum IntrStatusBits { |
| 346 | PCIErr = 0x8000, |
| 347 | PCSTimeout = 0x4000, |
| 348 | RxFIFOOver = 0x40, |
| 349 | RxUnderrun = 0x20, |
| 350 | RxOverflow = 0x10, |
| 351 | TxErr = 0x08, |
| 352 | TxOK = 0x04, |
| 353 | RxErr = 0x02, |
| 354 | RxOK = 0x01, |
| 355 | |
| 356 | RxAckBits = RxFIFOOver | RxOverflow | RxOK, |
| 357 | }; |
| 358 | |
| 359 | enum TxStatusBits { |
| 360 | TxHostOwns = 0x2000, |
| 361 | TxUnderrun = 0x4000, |
| 362 | TxStatOK = 0x8000, |
| 363 | TxOutOfWindow = 0x20000000, |
| 364 | TxAborted = 0x40000000, |
| 365 | TxCarrierLost = 0x80000000, |
| 366 | }; |
| 367 | enum RxStatusBits { |
| 368 | RxMulticast = 0x8000, |
| 369 | RxPhysical = 0x4000, |
| 370 | RxBroadcast = 0x2000, |
| 371 | RxBadSymbol = 0x0020, |
| 372 | RxRunt = 0x0010, |
| 373 | RxTooLong = 0x0008, |
| 374 | RxCRCErr = 0x0004, |
| 375 | RxBadAlign = 0x0002, |
| 376 | RxStatusOK = 0x0001, |
| 377 | }; |
| 378 | |
| 379 | /* Bits in RxConfig. */ |
| 380 | enum rx_mode_bits { |
| 381 | AcceptErr = 0x20, |
| 382 | AcceptRunt = 0x10, |
| 383 | AcceptBroadcast = 0x08, |
| 384 | AcceptMulticast = 0x04, |
| 385 | AcceptMyPhys = 0x02, |
| 386 | AcceptAllPhys = 0x01, |
| 387 | }; |
| 388 | |
| 389 | /* Bits in TxConfig. */ |
| 390 | enum tx_config_bits { |
| 391 | |
| 392 | /* Interframe Gap Time. Only TxIFG96 doesn't violate IEEE 802.3 */ |
| 393 | TxIFGShift = 24, |
| 394 | TxIFG84 = (0 << TxIFGShift), /* 8.4us / 840ns (10 / 100Mbps) */ |
| 395 | TxIFG88 = (1 << TxIFGShift), /* 8.8us / 880ns (10 / 100Mbps) */ |
| 396 | TxIFG92 = (2 << TxIFGShift), /* 9.2us / 920ns (10 / 100Mbps) */ |
| 397 | TxIFG96 = (3 << TxIFGShift), /* 9.6us / 960ns (10 / 100Mbps) */ |
| 398 | |
| 399 | TxLoopBack = (1 << 18) | (1 << 17), /* enable loopback test mode */ |
| 400 | TxCRC = (1 << 16), /* DISABLE appending CRC to end of Tx packets */ |
| 401 | TxClearAbt = (1 << 0), /* Clear abort (WO) */ |
| 402 | TxDMAShift = 8, /* DMA burst value (0-7) is shifted this many bits */ |
| 403 | TxRetryShift = 4, /* TXRR value (0-15) is shifted this many bits */ |
| 404 | |
| 405 | TxVersionMask = 0x7C800000, /* mask out version bits 30-26, 23 */ |
| 406 | }; |
| 407 | |
| 408 | /* Bits in Config1 */ |
| 409 | enum Config1Bits { |
| 410 | Cfg1_PM_Enable = 0x01, |
| 411 | Cfg1_VPD_Enable = 0x02, |
| 412 | Cfg1_PIO = 0x04, |
| 413 | Cfg1_MMIO = 0x08, |
| 414 | LWAKE = 0x10, /* not on 8139, 8139A */ |
| 415 | Cfg1_Driver_Load = 0x20, |
| 416 | Cfg1_LED0 = 0x40, |
| 417 | Cfg1_LED1 = 0x80, |
| 418 | SLEEP = (1 << 1), /* only on 8139, 8139A */ |
| 419 | PWRDN = (1 << 0), /* only on 8139, 8139A */ |
| 420 | }; |
| 421 | |
| 422 | /* Bits in Config3 */ |
| 423 | enum Config3Bits { |
| 424 | Cfg3_FBtBEn = (1 << 0), /* 1 = Fast Back to Back */ |
| 425 | Cfg3_FuncRegEn = (1 << 1), /* 1 = enable CardBus Function registers */ |
| 426 | Cfg3_CLKRUN_En = (1 << 2), /* 1 = enable CLKRUN */ |
| 427 | Cfg3_CardB_En = (1 << 3), /* 1 = enable CardBus registers */ |
| 428 | Cfg3_LinkUp = (1 << 4), /* 1 = wake up on link up */ |
| 429 | Cfg3_Magic = (1 << 5), /* 1 = wake up on Magic Packet (tm) */ |
| 430 | Cfg3_PARM_En = (1 << 6), /* 0 = software can set twister parameters */ |
| 431 | Cfg3_GNTSel = (1 << 7), /* 1 = delay 1 clock from PCI GNT signal */ |
| 432 | }; |
| 433 | |
| 434 | /* Bits in Config4 */ |
| 435 | enum Config4Bits { |
| 436 | LWPTN = (1 << 2), /* not on 8139, 8139A */ |
| 437 | }; |
| 438 | |
| 439 | /* Bits in Config5 */ |
| 440 | enum Config5Bits { |
| 441 | Cfg5_PME_STS = (1 << 0), /* 1 = PCI reset resets PME_Status */ |
| 442 | Cfg5_LANWake = (1 << 1), /* 1 = enable LANWake signal */ |
| 443 | Cfg5_LDPS = (1 << 2), /* 0 = save power when link is down */ |
| 444 | Cfg5_FIFOAddrPtr = (1 << 3), /* Realtek internal SRAM testing */ |
| 445 | Cfg5_UWF = (1 << 4), /* 1 = accept unicast wakeup frame */ |
| 446 | Cfg5_MWF = (1 << 5), /* 1 = accept multicast wakeup frame */ |
| 447 | Cfg5_BWF = (1 << 6), /* 1 = accept broadcast wakeup frame */ |
| 448 | }; |
| 449 | |
| 450 | enum RxConfigBits { |
| 451 | /* rx fifo threshold */ |
| 452 | RxCfgFIFOShift = 13, |
| 453 | RxCfgFIFONone = (7 << RxCfgFIFOShift), |
| 454 | |
| 455 | /* Max DMA burst */ |
| 456 | RxCfgDMAShift = 8, |
| 457 | RxCfgDMAUnlimited = (7 << RxCfgDMAShift), |
| 458 | |
| 459 | /* rx ring buffer length */ |
| 460 | RxCfgRcv8K = 0, |
| 461 | RxCfgRcv16K = (1 << 11), |
| 462 | RxCfgRcv32K = (1 << 12), |
| 463 | RxCfgRcv64K = (1 << 11) | (1 << 12), |
| 464 | |
| 465 | /* Disable packet wrap at end of Rx buffer. (not possible with 64k) */ |
| 466 | RxNoWrap = (1 << 7), |
| 467 | }; |
| 468 | |
| 469 | /* Twister tuning parameters from RealTek. |
| 470 | Completely undocumented, but required to tune bad links on some boards. */ |
| 471 | enum CSCRBits { |
| 472 | CSCR_LinkOKBit = 0x0400, |
| 473 | CSCR_LinkChangeBit = 0x0800, |
| 474 | CSCR_LinkStatusBits = 0x0f000, |
| 475 | CSCR_LinkDownOffCmd = 0x003c0, |
| 476 | CSCR_LinkDownCmd = 0x0f3c0, |
| 477 | }; |
| 478 | |
| 479 | enum Cfg9346Bits { |
| 480 | Cfg9346_Lock = 0x00, |
| 481 | Cfg9346_Unlock = 0xC0, |
| 482 | }; |
| 483 | |
| 484 | typedef enum { |
| 485 | CH_8139 = 0, |
| 486 | CH_8139_K, |
| 487 | CH_8139A, |
| 488 | CH_8139A_G, |
| 489 | CH_8139B, |
| 490 | CH_8130, |
| 491 | CH_8139C, |
| 492 | CH_8100, |
| 493 | CH_8100B_8139D, |
| 494 | CH_8101, |
| 495 | } chip_t; |
| 496 | |
| 497 | enum chip_flags { |
| 498 | HasHltClk = (1 << 0), |
| 499 | HasLWake = (1 << 1), |
| 500 | }; |
| 501 | |
| 502 | #define HW_REVID(b30, b29, b28, b27, b26, b23, b22) \ |
| 503 | (b30<<30 | b29<<29 | b28<<28 | b27<<27 | b26<<26 | b23<<23 | b22<<22) |
| 504 | #define HW_REVID_MASK HW_REVID(1, 1, 1, 1, 1, 1, 1) |
| 505 | |
| 506 | /* directly indexed by chip_t, above */ |
Jesper Juhl | 3c6bee1 | 2006-01-09 20:54:01 -0800 | [diff] [blame] | 507 | static const struct { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 508 | const char *name; |
| 509 | u32 version; /* from RTL8139C/RTL8139D docs */ |
| 510 | u32 flags; |
| 511 | } rtl_chip_info[] = { |
| 512 | { "RTL-8139", |
| 513 | HW_REVID(1, 0, 0, 0, 0, 0, 0), |
| 514 | HasHltClk, |
| 515 | }, |
| 516 | |
| 517 | { "RTL-8139 rev K", |
| 518 | HW_REVID(1, 1, 0, 0, 0, 0, 0), |
| 519 | HasHltClk, |
| 520 | }, |
| 521 | |
| 522 | { "RTL-8139A", |
| 523 | HW_REVID(1, 1, 1, 0, 0, 0, 0), |
| 524 | HasHltClk, /* XXX undocumented? */ |
| 525 | }, |
| 526 | |
| 527 | { "RTL-8139A rev G", |
| 528 | HW_REVID(1, 1, 1, 0, 0, 1, 0), |
| 529 | HasHltClk, /* XXX undocumented? */ |
| 530 | }, |
| 531 | |
| 532 | { "RTL-8139B", |
| 533 | HW_REVID(1, 1, 1, 1, 0, 0, 0), |
| 534 | HasLWake, |
| 535 | }, |
| 536 | |
| 537 | { "RTL-8130", |
| 538 | HW_REVID(1, 1, 1, 1, 1, 0, 0), |
| 539 | HasLWake, |
| 540 | }, |
| 541 | |
| 542 | { "RTL-8139C", |
| 543 | HW_REVID(1, 1, 1, 0, 1, 0, 0), |
| 544 | HasLWake, |
| 545 | }, |
| 546 | |
| 547 | { "RTL-8100", |
| 548 | HW_REVID(1, 1, 1, 1, 0, 1, 0), |
| 549 | HasLWake, |
| 550 | }, |
| 551 | |
| 552 | { "RTL-8100B/8139D", |
| 553 | HW_REVID(1, 1, 1, 0, 1, 0, 1), |
John W. Linville | 7645bae | 2005-10-18 21:31:00 -0400 | [diff] [blame] | 554 | HasHltClk /* XXX undocumented? */ |
| 555 | | HasLWake, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 556 | }, |
| 557 | |
| 558 | { "RTL-8101", |
| 559 | HW_REVID(1, 1, 1, 0, 1, 1, 1), |
| 560 | HasLWake, |
| 561 | }, |
| 562 | }; |
| 563 | |
| 564 | struct rtl_extra_stats { |
| 565 | unsigned long early_rx; |
| 566 | unsigned long tx_buf_mapped; |
| 567 | unsigned long tx_timeouts; |
| 568 | unsigned long rx_lost_in_ring; |
| 569 | }; |
| 570 | |
| 571 | struct rtl8139_private { |
Pekka Enberg | 22f714b | 2005-05-12 19:38:47 -0400 | [diff] [blame] | 572 | void __iomem *mmio_addr; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 573 | int drv_flags; |
| 574 | struct pci_dev *pci_dev; |
| 575 | u32 msg_enable; |
| 576 | struct net_device_stats stats; |
| 577 | unsigned char *rx_ring; |
| 578 | unsigned int cur_rx; /* Index into the Rx buffer of next Rx pkt. */ |
| 579 | unsigned int tx_flag; |
| 580 | unsigned long cur_tx; |
| 581 | unsigned long dirty_tx; |
| 582 | unsigned char *tx_buf[NUM_TX_DESC]; /* Tx bounce buffers */ |
| 583 | unsigned char *tx_bufs; /* Tx bounce buffer region. */ |
| 584 | dma_addr_t rx_ring_dma; |
| 585 | dma_addr_t tx_bufs_dma; |
| 586 | signed char phys[4]; /* MII device addresses. */ |
| 587 | char twistie, twist_row, twist_col; /* Twister tune state. */ |
Francois Romieu | 371e8bc | 2006-01-31 01:04:33 +0100 | [diff] [blame] | 588 | unsigned int watchdog_fired : 1; |
Jeff Garzik | 38b492a | 2005-11-04 22:36:28 -0500 | [diff] [blame] | 589 | unsigned int default_port : 4; /* Last dev->if_port value. */ |
| 590 | unsigned int have_thread : 1; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 591 | spinlock_t lock; |
| 592 | spinlock_t rx_lock; |
| 593 | chip_t chipset; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 594 | u32 rx_config; |
| 595 | struct rtl_extra_stats xstats; |
Jeff Garzik | a15e038 | 2005-10-31 07:59:37 -0500 | [diff] [blame] | 596 | |
| 597 | struct work_struct thread; |
Jeff Garzik | a15e038 | 2005-10-31 07:59:37 -0500 | [diff] [blame] | 598 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 599 | struct mii_if_info mii; |
| 600 | unsigned int regs_len; |
| 601 | unsigned long fifo_copy_timeout; |
| 602 | }; |
| 603 | |
| 604 | MODULE_AUTHOR ("Jeff Garzik <jgarzik@pobox.com>"); |
| 605 | MODULE_DESCRIPTION ("RealTek RTL-8139 Fast Ethernet driver"); |
| 606 | MODULE_LICENSE("GPL"); |
| 607 | MODULE_VERSION(DRV_VERSION); |
| 608 | |
| 609 | module_param(multicast_filter_limit, int, 0); |
| 610 | module_param_array(media, int, NULL, 0); |
| 611 | module_param_array(full_duplex, int, NULL, 0); |
| 612 | module_param(debug, int, 0); |
| 613 | MODULE_PARM_DESC (debug, "8139too bitmapped message enable number"); |
| 614 | MODULE_PARM_DESC (multicast_filter_limit, "8139too maximum number of filtered multicast addresses"); |
| 615 | MODULE_PARM_DESC (media, "8139too: Bits 4+9: force full duplex, bit 5: 100Mbps"); |
| 616 | MODULE_PARM_DESC (full_duplex, "8139too: Force full duplex for board(s) (1)"); |
| 617 | |
Pekka Enberg | 22f714b | 2005-05-12 19:38:47 -0400 | [diff] [blame] | 618 | static int read_eeprom (void __iomem *ioaddr, int location, int addr_len); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 619 | static int rtl8139_open (struct net_device *dev); |
| 620 | static int mdio_read (struct net_device *dev, int phy_id, int location); |
| 621 | static void mdio_write (struct net_device *dev, int phy_id, int location, |
| 622 | int val); |
Jeff Garzik | a15e038 | 2005-10-31 07:59:37 -0500 | [diff] [blame] | 623 | static void rtl8139_start_thread(struct rtl8139_private *tp); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 624 | static void rtl8139_tx_timeout (struct net_device *dev); |
| 625 | static void rtl8139_init_ring (struct net_device *dev); |
| 626 | static int rtl8139_start_xmit (struct sk_buff *skb, |
| 627 | struct net_device *dev); |
| 628 | static int rtl8139_poll(struct net_device *dev, int *budget); |
| 629 | #ifdef CONFIG_NET_POLL_CONTROLLER |
| 630 | static void rtl8139_poll_controller(struct net_device *dev); |
| 631 | #endif |
| 632 | static irqreturn_t rtl8139_interrupt (int irq, void *dev_instance, |
| 633 | struct pt_regs *regs); |
| 634 | static int rtl8139_close (struct net_device *dev); |
| 635 | static int netdev_ioctl (struct net_device *dev, struct ifreq *rq, int cmd); |
| 636 | static struct net_device_stats *rtl8139_get_stats (struct net_device *dev); |
| 637 | static void rtl8139_set_rx_mode (struct net_device *dev); |
| 638 | static void __set_rx_mode (struct net_device *dev); |
| 639 | static void rtl8139_hw_start (struct net_device *dev); |
Jeff Garzik | a15e038 | 2005-10-31 07:59:37 -0500 | [diff] [blame] | 640 | static void rtl8139_thread (void *_data); |
Francois Romieu | 371e8bc | 2006-01-31 01:04:33 +0100 | [diff] [blame] | 641 | static void rtl8139_tx_timeout_task(void *_data); |
Jeff Garzik | 7282d49 | 2006-09-13 14:30:00 -0400 | [diff] [blame] | 642 | static const struct ethtool_ops rtl8139_ethtool_ops; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 643 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 644 | /* write MMIO register, with flush */ |
| 645 | /* Flush avoids rtl8139 bug w/ posted MMIO writes */ |
Pekka Enberg | 22f714b | 2005-05-12 19:38:47 -0400 | [diff] [blame] | 646 | #define RTL_W8_F(reg, val8) do { iowrite8 ((val8), ioaddr + (reg)); ioread8 (ioaddr + (reg)); } while (0) |
| 647 | #define RTL_W16_F(reg, val16) do { iowrite16 ((val16), ioaddr + (reg)); ioread16 (ioaddr + (reg)); } while (0) |
| 648 | #define RTL_W32_F(reg, val32) do { iowrite32 ((val32), ioaddr + (reg)); ioread32 (ioaddr + (reg)); } while (0) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 649 | |
| 650 | |
| 651 | #define MMIO_FLUSH_AUDIT_COMPLETE 1 |
| 652 | #if MMIO_FLUSH_AUDIT_COMPLETE |
| 653 | |
| 654 | /* write MMIO register */ |
Pekka Enberg | 22f714b | 2005-05-12 19:38:47 -0400 | [diff] [blame] | 655 | #define RTL_W8(reg, val8) iowrite8 ((val8), ioaddr + (reg)) |
| 656 | #define RTL_W16(reg, val16) iowrite16 ((val16), ioaddr + (reg)) |
| 657 | #define RTL_W32(reg, val32) iowrite32 ((val32), ioaddr + (reg)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 658 | |
| 659 | #else |
| 660 | |
| 661 | /* write MMIO register, then flush */ |
| 662 | #define RTL_W8 RTL_W8_F |
| 663 | #define RTL_W16 RTL_W16_F |
| 664 | #define RTL_W32 RTL_W32_F |
| 665 | |
| 666 | #endif /* MMIO_FLUSH_AUDIT_COMPLETE */ |
| 667 | |
| 668 | /* read MMIO register */ |
Pekka Enberg | 22f714b | 2005-05-12 19:38:47 -0400 | [diff] [blame] | 669 | #define RTL_R8(reg) ioread8 (ioaddr + (reg)) |
| 670 | #define RTL_R16(reg) ioread16 (ioaddr + (reg)) |
| 671 | #define RTL_R32(reg) ((unsigned long) ioread32 (ioaddr + (reg))) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 672 | |
| 673 | |
| 674 | static const u16 rtl8139_intr_mask = |
| 675 | PCIErr | PCSTimeout | RxUnderrun | RxOverflow | RxFIFOOver | |
| 676 | TxErr | TxOK | RxErr | RxOK; |
| 677 | |
| 678 | static const u16 rtl8139_norx_intr_mask = |
| 679 | PCIErr | PCSTimeout | RxUnderrun | |
| 680 | TxErr | TxOK | RxErr ; |
| 681 | |
| 682 | #if RX_BUF_IDX == 0 |
| 683 | static const unsigned int rtl8139_rx_config = |
| 684 | RxCfgRcv8K | RxNoWrap | |
| 685 | (RX_FIFO_THRESH << RxCfgFIFOShift) | |
| 686 | (RX_DMA_BURST << RxCfgDMAShift); |
| 687 | #elif RX_BUF_IDX == 1 |
| 688 | static const unsigned int rtl8139_rx_config = |
| 689 | RxCfgRcv16K | RxNoWrap | |
| 690 | (RX_FIFO_THRESH << RxCfgFIFOShift) | |
| 691 | (RX_DMA_BURST << RxCfgDMAShift); |
| 692 | #elif RX_BUF_IDX == 2 |
| 693 | static const unsigned int rtl8139_rx_config = |
| 694 | RxCfgRcv32K | RxNoWrap | |
| 695 | (RX_FIFO_THRESH << RxCfgFIFOShift) | |
| 696 | (RX_DMA_BURST << RxCfgDMAShift); |
| 697 | #elif RX_BUF_IDX == 3 |
| 698 | static const unsigned int rtl8139_rx_config = |
| 699 | RxCfgRcv64K | |
| 700 | (RX_FIFO_THRESH << RxCfgFIFOShift) | |
| 701 | (RX_DMA_BURST << RxCfgDMAShift); |
| 702 | #else |
| 703 | #error "Invalid configuration for 8139_RXBUF_IDX" |
| 704 | #endif |
| 705 | |
| 706 | static const unsigned int rtl8139_tx_config = |
| 707 | TxIFG96 | (TX_DMA_BURST << TxDMAShift) | (TX_RETRY << TxRetryShift); |
| 708 | |
| 709 | static void __rtl8139_cleanup_dev (struct net_device *dev) |
| 710 | { |
| 711 | struct rtl8139_private *tp = netdev_priv(dev); |
| 712 | struct pci_dev *pdev; |
| 713 | |
| 714 | assert (dev != NULL); |
| 715 | assert (tp->pci_dev != NULL); |
| 716 | pdev = tp->pci_dev; |
| 717 | |
Pekka Enberg | 22f714b | 2005-05-12 19:38:47 -0400 | [diff] [blame] | 718 | #ifdef USE_IO_OPS |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 719 | if (tp->mmio_addr) |
Pekka Enberg | 22f714b | 2005-05-12 19:38:47 -0400 | [diff] [blame] | 720 | ioport_unmap (tp->mmio_addr); |
| 721 | #else |
| 722 | if (tp->mmio_addr) |
| 723 | pci_iounmap (pdev, tp->mmio_addr); |
| 724 | #endif /* USE_IO_OPS */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 725 | |
| 726 | /* it's ok to call this even if we have no regions to free */ |
| 727 | pci_release_regions (pdev); |
| 728 | |
| 729 | free_netdev(dev); |
| 730 | pci_set_drvdata (pdev, NULL); |
| 731 | } |
| 732 | |
| 733 | |
Pekka Enberg | 22f714b | 2005-05-12 19:38:47 -0400 | [diff] [blame] | 734 | static void rtl8139_chip_reset (void __iomem *ioaddr) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 735 | { |
| 736 | int i; |
| 737 | |
| 738 | /* Soft reset the chip. */ |
| 739 | RTL_W8 (ChipCmd, CmdReset); |
| 740 | |
| 741 | /* Check that the chip has finished the reset. */ |
| 742 | for (i = 1000; i > 0; i--) { |
| 743 | barrier(); |
| 744 | if ((RTL_R8 (ChipCmd) & CmdReset) == 0) |
| 745 | break; |
| 746 | udelay (10); |
| 747 | } |
| 748 | } |
| 749 | |
| 750 | |
| 751 | static int __devinit rtl8139_init_board (struct pci_dev *pdev, |
| 752 | struct net_device **dev_out) |
| 753 | { |
Pekka Enberg | 22f714b | 2005-05-12 19:38:47 -0400 | [diff] [blame] | 754 | void __iomem *ioaddr; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 755 | struct net_device *dev; |
| 756 | struct rtl8139_private *tp; |
| 757 | u8 tmp8; |
| 758 | int rc, disable_dev_on_err = 0; |
| 759 | unsigned int i; |
| 760 | unsigned long pio_start, pio_end, pio_flags, pio_len; |
| 761 | unsigned long mmio_start, mmio_end, mmio_flags, mmio_len; |
| 762 | u32 version; |
| 763 | |
| 764 | assert (pdev != NULL); |
| 765 | |
| 766 | *dev_out = NULL; |
| 767 | |
| 768 | /* dev and priv zeroed in alloc_etherdev */ |
| 769 | dev = alloc_etherdev (sizeof (*tp)); |
| 770 | if (dev == NULL) { |
Jeff Garzik | 9b91cf9 | 2006-06-27 11:39:50 -0400 | [diff] [blame] | 771 | dev_err(&pdev->dev, "Unable to alloc new net device\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 772 | return -ENOMEM; |
| 773 | } |
| 774 | SET_MODULE_OWNER(dev); |
| 775 | SET_NETDEV_DEV(dev, &pdev->dev); |
| 776 | |
| 777 | tp = netdev_priv(dev); |
| 778 | tp->pci_dev = pdev; |
| 779 | |
| 780 | /* enable device (incl. PCI PM wakeup and hotplug setup) */ |
| 781 | rc = pci_enable_device (pdev); |
| 782 | if (rc) |
| 783 | goto err_out; |
| 784 | |
| 785 | pio_start = pci_resource_start (pdev, 0); |
| 786 | pio_end = pci_resource_end (pdev, 0); |
| 787 | pio_flags = pci_resource_flags (pdev, 0); |
| 788 | pio_len = pci_resource_len (pdev, 0); |
| 789 | |
| 790 | mmio_start = pci_resource_start (pdev, 1); |
| 791 | mmio_end = pci_resource_end (pdev, 1); |
| 792 | mmio_flags = pci_resource_flags (pdev, 1); |
| 793 | mmio_len = pci_resource_len (pdev, 1); |
| 794 | |
| 795 | /* set this immediately, we need to know before |
| 796 | * we talk to the chip directly */ |
| 797 | DPRINTK("PIO region size == 0x%02X\n", pio_len); |
| 798 | DPRINTK("MMIO region size == 0x%02lX\n", mmio_len); |
| 799 | |
| 800 | #ifdef USE_IO_OPS |
| 801 | /* make sure PCI base addr 0 is PIO */ |
| 802 | if (!(pio_flags & IORESOURCE_IO)) { |
Jeff Garzik | 9b91cf9 | 2006-06-27 11:39:50 -0400 | [diff] [blame] | 803 | dev_err(&pdev->dev, "region #0 not a PIO resource, aborting\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 804 | rc = -ENODEV; |
| 805 | goto err_out; |
| 806 | } |
| 807 | /* check for weird/broken PCI region reporting */ |
| 808 | if (pio_len < RTL_MIN_IO_SIZE) { |
Jeff Garzik | 9b91cf9 | 2006-06-27 11:39:50 -0400 | [diff] [blame] | 809 | dev_err(&pdev->dev, "Invalid PCI I/O region size(s), aborting\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 810 | rc = -ENODEV; |
| 811 | goto err_out; |
| 812 | } |
| 813 | #else |
| 814 | /* make sure PCI base addr 1 is MMIO */ |
| 815 | if (!(mmio_flags & IORESOURCE_MEM)) { |
Jeff Garzik | 9b91cf9 | 2006-06-27 11:39:50 -0400 | [diff] [blame] | 816 | dev_err(&pdev->dev, "region #1 not an MMIO resource, aborting\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 817 | rc = -ENODEV; |
| 818 | goto err_out; |
| 819 | } |
| 820 | if (mmio_len < RTL_MIN_IO_SIZE) { |
Jeff Garzik | 9b91cf9 | 2006-06-27 11:39:50 -0400 | [diff] [blame] | 821 | dev_err(&pdev->dev, "Invalid PCI mem region size(s), aborting\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 822 | rc = -ENODEV; |
| 823 | goto err_out; |
| 824 | } |
| 825 | #endif |
| 826 | |
Jeff Garzik | 2e8a538 | 2006-06-27 10:47:51 -0400 | [diff] [blame] | 827 | rc = pci_request_regions (pdev, DRV_NAME); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 828 | if (rc) |
| 829 | goto err_out; |
| 830 | disable_dev_on_err = 1; |
| 831 | |
| 832 | /* enable PCI bus-mastering */ |
| 833 | pci_set_master (pdev); |
| 834 | |
| 835 | #ifdef USE_IO_OPS |
Pekka Enberg | 22f714b | 2005-05-12 19:38:47 -0400 | [diff] [blame] | 836 | ioaddr = ioport_map(pio_start, pio_len); |
| 837 | if (!ioaddr) { |
Jeff Garzik | 9b91cf9 | 2006-06-27 11:39:50 -0400 | [diff] [blame] | 838 | dev_err(&pdev->dev, "cannot map PIO, aborting\n"); |
Pekka Enberg | 22f714b | 2005-05-12 19:38:47 -0400 | [diff] [blame] | 839 | rc = -EIO; |
| 840 | goto err_out; |
| 841 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 842 | dev->base_addr = pio_start; |
| 843 | tp->mmio_addr = ioaddr; |
| 844 | tp->regs_len = pio_len; |
| 845 | #else |
| 846 | /* ioremap MMIO region */ |
Pekka Enberg | 22f714b | 2005-05-12 19:38:47 -0400 | [diff] [blame] | 847 | ioaddr = pci_iomap(pdev, 1, 0); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 848 | if (ioaddr == NULL) { |
Jeff Garzik | 9b91cf9 | 2006-06-27 11:39:50 -0400 | [diff] [blame] | 849 | dev_err(&pdev->dev, "cannot remap MMIO, aborting\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 850 | rc = -EIO; |
| 851 | goto err_out; |
| 852 | } |
| 853 | dev->base_addr = (long) ioaddr; |
| 854 | tp->mmio_addr = ioaddr; |
| 855 | tp->regs_len = mmio_len; |
| 856 | #endif /* USE_IO_OPS */ |
| 857 | |
| 858 | /* Bring old chips out of low-power mode. */ |
| 859 | RTL_W8 (HltClk, 'R'); |
| 860 | |
| 861 | /* check for missing/broken hardware */ |
| 862 | if (RTL_R32 (TxConfig) == 0xFFFFFFFF) { |
Jeff Garzik | 9b91cf9 | 2006-06-27 11:39:50 -0400 | [diff] [blame] | 863 | dev_err(&pdev->dev, "Chip not responding, ignoring board\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 864 | rc = -EIO; |
| 865 | goto err_out; |
| 866 | } |
| 867 | |
| 868 | /* identify chip attached to board */ |
| 869 | version = RTL_R32 (TxConfig) & HW_REVID_MASK; |
| 870 | for (i = 0; i < ARRAY_SIZE (rtl_chip_info); i++) |
| 871 | if (version == rtl_chip_info[i].version) { |
| 872 | tp->chipset = i; |
| 873 | goto match; |
| 874 | } |
| 875 | |
| 876 | /* if unknown chip, assume array element #0, original RTL-8139 in this case */ |
Jeff Garzik | 2e8a538 | 2006-06-27 10:47:51 -0400 | [diff] [blame] | 877 | dev_printk (KERN_DEBUG, &pdev->dev, |
| 878 | "unknown chip version, assuming RTL-8139\n"); |
| 879 | dev_printk (KERN_DEBUG, &pdev->dev, |
| 880 | "TxConfig = 0x%lx\n", RTL_R32 (TxConfig)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 881 | tp->chipset = 0; |
| 882 | |
| 883 | match: |
| 884 | DPRINTK ("chipset id (%d) == index %d, '%s'\n", |
| 885 | version, i, rtl_chip_info[i].name); |
| 886 | |
| 887 | if (tp->chipset >= CH_8139B) { |
| 888 | u8 new_tmp8 = tmp8 = RTL_R8 (Config1); |
| 889 | DPRINTK("PCI PM wakeup\n"); |
| 890 | if ((rtl_chip_info[tp->chipset].flags & HasLWake) && |
| 891 | (tmp8 & LWAKE)) |
| 892 | new_tmp8 &= ~LWAKE; |
| 893 | new_tmp8 |= Cfg1_PM_Enable; |
| 894 | if (new_tmp8 != tmp8) { |
| 895 | RTL_W8 (Cfg9346, Cfg9346_Unlock); |
| 896 | RTL_W8 (Config1, tmp8); |
| 897 | RTL_W8 (Cfg9346, Cfg9346_Lock); |
| 898 | } |
| 899 | if (rtl_chip_info[tp->chipset].flags & HasLWake) { |
| 900 | tmp8 = RTL_R8 (Config4); |
| 901 | if (tmp8 & LWPTN) { |
| 902 | RTL_W8 (Cfg9346, Cfg9346_Unlock); |
| 903 | RTL_W8 (Config4, tmp8 & ~LWPTN); |
| 904 | RTL_W8 (Cfg9346, Cfg9346_Lock); |
| 905 | } |
| 906 | } |
| 907 | } else { |
| 908 | DPRINTK("Old chip wakeup\n"); |
| 909 | tmp8 = RTL_R8 (Config1); |
| 910 | tmp8 &= ~(SLEEP | PWRDN); |
| 911 | RTL_W8 (Config1, tmp8); |
| 912 | } |
| 913 | |
| 914 | rtl8139_chip_reset (ioaddr); |
| 915 | |
| 916 | *dev_out = dev; |
| 917 | return 0; |
| 918 | |
| 919 | err_out: |
| 920 | __rtl8139_cleanup_dev (dev); |
| 921 | if (disable_dev_on_err) |
| 922 | pci_disable_device (pdev); |
| 923 | return rc; |
| 924 | } |
| 925 | |
| 926 | |
| 927 | static int __devinit rtl8139_init_one (struct pci_dev *pdev, |
| 928 | const struct pci_device_id *ent) |
| 929 | { |
| 930 | struct net_device *dev = NULL; |
| 931 | struct rtl8139_private *tp; |
| 932 | int i, addr_len, option; |
Pekka Enberg | 22f714b | 2005-05-12 19:38:47 -0400 | [diff] [blame] | 933 | void __iomem *ioaddr; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 934 | static int board_idx = -1; |
| 935 | u8 pci_rev; |
| 936 | |
| 937 | assert (pdev != NULL); |
| 938 | assert (ent != NULL); |
| 939 | |
| 940 | board_idx++; |
| 941 | |
| 942 | /* when we're built into the kernel, the driver version message |
| 943 | * is only printed if at least one 8139 board has been found |
| 944 | */ |
| 945 | #ifndef MODULE |
| 946 | { |
| 947 | static int printed_version; |
| 948 | if (!printed_version++) |
| 949 | printk (KERN_INFO RTL8139_DRIVER_NAME "\n"); |
| 950 | } |
| 951 | #endif |
| 952 | |
| 953 | pci_read_config_byte(pdev, PCI_REVISION_ID, &pci_rev); |
| 954 | |
| 955 | if (pdev->vendor == PCI_VENDOR_ID_REALTEK && |
| 956 | pdev->device == PCI_DEVICE_ID_REALTEK_8139 && pci_rev >= 0x20) { |
Jeff Garzik | 9b91cf9 | 2006-06-27 11:39:50 -0400 | [diff] [blame] | 957 | dev_info(&pdev->dev, |
Jeff Garzik | 2e8a538 | 2006-06-27 10:47:51 -0400 | [diff] [blame] | 958 | "This (id %04x:%04x rev %02x) is an enhanced 8139C+ chip\n", |
| 959 | pdev->vendor, pdev->device, pci_rev); |
Jeff Garzik | 9b91cf9 | 2006-06-27 11:39:50 -0400 | [diff] [blame] | 960 | dev_info(&pdev->dev, |
Jeff Garzik | 2e8a538 | 2006-06-27 10:47:51 -0400 | [diff] [blame] | 961 | "Use the \"8139cp\" driver for improved performance and stability.\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 962 | } |
| 963 | |
| 964 | i = rtl8139_init_board (pdev, &dev); |
| 965 | if (i < 0) |
| 966 | return i; |
| 967 | |
| 968 | assert (dev != NULL); |
| 969 | tp = netdev_priv(dev); |
| 970 | |
| 971 | ioaddr = tp->mmio_addr; |
| 972 | assert (ioaddr != NULL); |
| 973 | |
| 974 | addr_len = read_eeprom (ioaddr, 0, 8) == 0x8129 ? 8 : 6; |
| 975 | for (i = 0; i < 3; i++) |
| 976 | ((u16 *) (dev->dev_addr))[i] = |
| 977 | le16_to_cpu (read_eeprom (ioaddr, i + 7, addr_len)); |
John W. Linville | 62a720b | 2005-09-12 10:48:55 -0400 | [diff] [blame] | 978 | memcpy(dev->perm_addr, dev->dev_addr, dev->addr_len); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 979 | |
| 980 | /* The Rtl8139-specific entries in the device structure. */ |
| 981 | dev->open = rtl8139_open; |
| 982 | dev->hard_start_xmit = rtl8139_start_xmit; |
| 983 | dev->poll = rtl8139_poll; |
| 984 | dev->weight = 64; |
| 985 | dev->stop = rtl8139_close; |
| 986 | dev->get_stats = rtl8139_get_stats; |
| 987 | dev->set_multicast_list = rtl8139_set_rx_mode; |
| 988 | dev->do_ioctl = netdev_ioctl; |
| 989 | dev->ethtool_ops = &rtl8139_ethtool_ops; |
| 990 | dev->tx_timeout = rtl8139_tx_timeout; |
| 991 | dev->watchdog_timeo = TX_TIMEOUT; |
| 992 | #ifdef CONFIG_NET_POLL_CONTROLLER |
| 993 | dev->poll_controller = rtl8139_poll_controller; |
| 994 | #endif |
| 995 | |
| 996 | /* note: the hardware is not capable of sg/csum/highdma, however |
| 997 | * through the use of skb_copy_and_csum_dev we enable these |
| 998 | * features |
| 999 | */ |
| 1000 | dev->features |= NETIF_F_SG | NETIF_F_HW_CSUM | NETIF_F_HIGHDMA; |
| 1001 | |
| 1002 | dev->irq = pdev->irq; |
| 1003 | |
| 1004 | /* tp zeroed and aligned in alloc_etherdev */ |
| 1005 | tp = netdev_priv(dev); |
| 1006 | |
| 1007 | /* note: tp->chipset set in rtl8139_init_board */ |
| 1008 | tp->drv_flags = board_info[ent->driver_data].hw_flags; |
| 1009 | tp->mmio_addr = ioaddr; |
| 1010 | tp->msg_enable = |
| 1011 | (debug < 0 ? RTL8139_DEF_MSG_ENABLE : ((1 << debug) - 1)); |
| 1012 | spin_lock_init (&tp->lock); |
| 1013 | spin_lock_init (&tp->rx_lock); |
Jeff Garzik | a15e038 | 2005-10-31 07:59:37 -0500 | [diff] [blame] | 1014 | INIT_WORK(&tp->thread, rtl8139_thread, dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1015 | tp->mii.dev = dev; |
| 1016 | tp->mii.mdio_read = mdio_read; |
| 1017 | tp->mii.mdio_write = mdio_write; |
| 1018 | tp->mii.phy_id_mask = 0x3f; |
| 1019 | tp->mii.reg_num_mask = 0x1f; |
| 1020 | |
| 1021 | /* dev is fully set up and ready to use now */ |
| 1022 | DPRINTK("about to register device named %s (%p)...\n", dev->name, dev); |
| 1023 | i = register_netdev (dev); |
| 1024 | if (i) goto err_out; |
| 1025 | |
| 1026 | pci_set_drvdata (pdev, dev); |
| 1027 | |
| 1028 | printk (KERN_INFO "%s: %s at 0x%lx, " |
| 1029 | "%2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x, " |
| 1030 | "IRQ %d\n", |
| 1031 | dev->name, |
| 1032 | board_info[ent->driver_data].name, |
| 1033 | dev->base_addr, |
| 1034 | dev->dev_addr[0], dev->dev_addr[1], |
| 1035 | dev->dev_addr[2], dev->dev_addr[3], |
| 1036 | dev->dev_addr[4], dev->dev_addr[5], |
| 1037 | dev->irq); |
| 1038 | |
| 1039 | printk (KERN_DEBUG "%s: Identified 8139 chip type '%s'\n", |
| 1040 | dev->name, rtl_chip_info[tp->chipset].name); |
| 1041 | |
| 1042 | /* Find the connected MII xcvrs. |
| 1043 | Doing this in open() would allow detecting external xcvrs later, but |
| 1044 | takes too much time. */ |
| 1045 | #ifdef CONFIG_8139TOO_8129 |
| 1046 | if (tp->drv_flags & HAS_MII_XCVR) { |
| 1047 | int phy, phy_idx = 0; |
| 1048 | for (phy = 0; phy < 32 && phy_idx < sizeof(tp->phys); phy++) { |
| 1049 | int mii_status = mdio_read(dev, phy, 1); |
| 1050 | if (mii_status != 0xffff && mii_status != 0x0000) { |
| 1051 | u16 advertising = mdio_read(dev, phy, 4); |
| 1052 | tp->phys[phy_idx++] = phy; |
| 1053 | printk(KERN_INFO "%s: MII transceiver %d status 0x%4.4x " |
| 1054 | "advertising %4.4x.\n", |
| 1055 | dev->name, phy, mii_status, advertising); |
| 1056 | } |
| 1057 | } |
| 1058 | if (phy_idx == 0) { |
| 1059 | printk(KERN_INFO "%s: No MII transceivers found! Assuming SYM " |
| 1060 | "transceiver.\n", |
| 1061 | dev->name); |
| 1062 | tp->phys[0] = 32; |
| 1063 | } |
| 1064 | } else |
| 1065 | #endif |
| 1066 | tp->phys[0] = 32; |
| 1067 | tp->mii.phy_id = tp->phys[0]; |
| 1068 | |
| 1069 | /* The lower four bits are the media type. */ |
| 1070 | option = (board_idx >= MAX_UNITS) ? 0 : media[board_idx]; |
| 1071 | if (option > 0) { |
| 1072 | tp->mii.full_duplex = (option & 0x210) ? 1 : 0; |
| 1073 | tp->default_port = option & 0xFF; |
| 1074 | if (tp->default_port) |
| 1075 | tp->mii.force_media = 1; |
| 1076 | } |
| 1077 | if (board_idx < MAX_UNITS && full_duplex[board_idx] > 0) |
| 1078 | tp->mii.full_duplex = full_duplex[board_idx]; |
| 1079 | if (tp->mii.full_duplex) { |
| 1080 | printk(KERN_INFO "%s: Media type forced to Full Duplex.\n", dev->name); |
| 1081 | /* Changing the MII-advertised media because might prevent |
| 1082 | re-connection. */ |
| 1083 | tp->mii.force_media = 1; |
| 1084 | } |
| 1085 | if (tp->default_port) { |
| 1086 | printk(KERN_INFO " Forcing %dMbps %s-duplex operation.\n", |
| 1087 | (option & 0x20 ? 100 : 10), |
| 1088 | (option & 0x10 ? "full" : "half")); |
| 1089 | mdio_write(dev, tp->phys[0], 0, |
| 1090 | ((option & 0x20) ? 0x2000 : 0) | /* 100Mbps? */ |
| 1091 | ((option & 0x10) ? 0x0100 : 0)); /* Full duplex? */ |
| 1092 | } |
| 1093 | |
| 1094 | /* Put the chip into low-power mode. */ |
| 1095 | if (rtl_chip_info[tp->chipset].flags & HasHltClk) |
| 1096 | RTL_W8 (HltClk, 'H'); /* 'R' would leave the clock running. */ |
| 1097 | |
| 1098 | return 0; |
| 1099 | |
| 1100 | err_out: |
| 1101 | __rtl8139_cleanup_dev (dev); |
| 1102 | pci_disable_device (pdev); |
| 1103 | return i; |
| 1104 | } |
| 1105 | |
| 1106 | |
| 1107 | static void __devexit rtl8139_remove_one (struct pci_dev *pdev) |
| 1108 | { |
| 1109 | struct net_device *dev = pci_get_drvdata (pdev); |
| 1110 | |
| 1111 | assert (dev != NULL); |
| 1112 | |
| 1113 | unregister_netdev (dev); |
| 1114 | |
| 1115 | __rtl8139_cleanup_dev (dev); |
| 1116 | pci_disable_device (pdev); |
| 1117 | } |
| 1118 | |
| 1119 | |
| 1120 | /* Serial EEPROM section. */ |
| 1121 | |
| 1122 | /* EEPROM_Ctrl bits. */ |
| 1123 | #define EE_SHIFT_CLK 0x04 /* EEPROM shift clock. */ |
| 1124 | #define EE_CS 0x08 /* EEPROM chip select. */ |
| 1125 | #define EE_DATA_WRITE 0x02 /* EEPROM chip data in. */ |
| 1126 | #define EE_WRITE_0 0x00 |
| 1127 | #define EE_WRITE_1 0x02 |
| 1128 | #define EE_DATA_READ 0x01 /* EEPROM chip data out. */ |
| 1129 | #define EE_ENB (0x80 | EE_CS) |
| 1130 | |
| 1131 | /* Delay between EEPROM clock transitions. |
| 1132 | No extra delay is needed with 33Mhz PCI, but 66Mhz may change this. |
| 1133 | */ |
| 1134 | |
Takashi Iwai | 10e705f | 2006-03-24 03:18:23 -0800 | [diff] [blame] | 1135 | #define eeprom_delay() (void)RTL_R32(Cfg9346) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1136 | |
| 1137 | /* The EEPROM commands include the alway-set leading bit. */ |
| 1138 | #define EE_WRITE_CMD (5) |
| 1139 | #define EE_READ_CMD (6) |
| 1140 | #define EE_ERASE_CMD (7) |
| 1141 | |
Pekka Enberg | 22f714b | 2005-05-12 19:38:47 -0400 | [diff] [blame] | 1142 | static int __devinit read_eeprom (void __iomem *ioaddr, int location, int addr_len) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1143 | { |
| 1144 | int i; |
| 1145 | unsigned retval = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1146 | int read_cmd = location | (EE_READ_CMD << addr_len); |
| 1147 | |
Pekka Enberg | 22f714b | 2005-05-12 19:38:47 -0400 | [diff] [blame] | 1148 | RTL_W8 (Cfg9346, EE_ENB & ~EE_CS); |
| 1149 | RTL_W8 (Cfg9346, EE_ENB); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1150 | eeprom_delay (); |
| 1151 | |
| 1152 | /* Shift the read command bits out. */ |
| 1153 | for (i = 4 + addr_len; i >= 0; i--) { |
| 1154 | int dataval = (read_cmd & (1 << i)) ? EE_DATA_WRITE : 0; |
Pekka Enberg | 22f714b | 2005-05-12 19:38:47 -0400 | [diff] [blame] | 1155 | RTL_W8 (Cfg9346, EE_ENB | dataval); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1156 | eeprom_delay (); |
Pekka Enberg | 22f714b | 2005-05-12 19:38:47 -0400 | [diff] [blame] | 1157 | RTL_W8 (Cfg9346, EE_ENB | dataval | EE_SHIFT_CLK); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1158 | eeprom_delay (); |
| 1159 | } |
Pekka Enberg | 22f714b | 2005-05-12 19:38:47 -0400 | [diff] [blame] | 1160 | RTL_W8 (Cfg9346, EE_ENB); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1161 | eeprom_delay (); |
| 1162 | |
| 1163 | for (i = 16; i > 0; i--) { |
Pekka Enberg | 22f714b | 2005-05-12 19:38:47 -0400 | [diff] [blame] | 1164 | RTL_W8 (Cfg9346, EE_ENB | EE_SHIFT_CLK); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1165 | eeprom_delay (); |
| 1166 | retval = |
Pekka Enberg | 22f714b | 2005-05-12 19:38:47 -0400 | [diff] [blame] | 1167 | (retval << 1) | ((RTL_R8 (Cfg9346) & EE_DATA_READ) ? 1 : |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1168 | 0); |
Pekka Enberg | 22f714b | 2005-05-12 19:38:47 -0400 | [diff] [blame] | 1169 | RTL_W8 (Cfg9346, EE_ENB); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1170 | eeprom_delay (); |
| 1171 | } |
| 1172 | |
| 1173 | /* Terminate the EEPROM access. */ |
Pekka Enberg | 22f714b | 2005-05-12 19:38:47 -0400 | [diff] [blame] | 1174 | RTL_W8 (Cfg9346, ~EE_CS); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1175 | eeprom_delay (); |
| 1176 | |
| 1177 | return retval; |
| 1178 | } |
| 1179 | |
| 1180 | /* MII serial management: mostly bogus for now. */ |
| 1181 | /* Read and write the MII management registers using software-generated |
| 1182 | serial MDIO protocol. |
| 1183 | The maximum data clock rate is 2.5 Mhz. The minimum timing is usually |
| 1184 | met by back-to-back PCI I/O cycles, but we insert a delay to avoid |
| 1185 | "overclocking" issues. */ |
| 1186 | #define MDIO_DIR 0x80 |
| 1187 | #define MDIO_DATA_OUT 0x04 |
| 1188 | #define MDIO_DATA_IN 0x02 |
| 1189 | #define MDIO_CLK 0x01 |
| 1190 | #define MDIO_WRITE0 (MDIO_DIR) |
| 1191 | #define MDIO_WRITE1 (MDIO_DIR | MDIO_DATA_OUT) |
| 1192 | |
Pekka Enberg | 22f714b | 2005-05-12 19:38:47 -0400 | [diff] [blame] | 1193 | #define mdio_delay() RTL_R8(Config4) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1194 | |
| 1195 | |
Arjan van de Ven | f71e130 | 2006-03-03 21:33:57 -0500 | [diff] [blame] | 1196 | static const char mii_2_8139_map[8] = { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1197 | BasicModeCtrl, |
| 1198 | BasicModeStatus, |
| 1199 | 0, |
| 1200 | 0, |
| 1201 | NWayAdvert, |
| 1202 | NWayLPAR, |
| 1203 | NWayExpansion, |
| 1204 | 0 |
| 1205 | }; |
| 1206 | |
| 1207 | |
| 1208 | #ifdef CONFIG_8139TOO_8129 |
| 1209 | /* Syncronize the MII management interface by shifting 32 one bits out. */ |
Pekka Enberg | 22f714b | 2005-05-12 19:38:47 -0400 | [diff] [blame] | 1210 | static void mdio_sync (void __iomem *ioaddr) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1211 | { |
| 1212 | int i; |
| 1213 | |
| 1214 | for (i = 32; i >= 0; i--) { |
Pekka Enberg | 22f714b | 2005-05-12 19:38:47 -0400 | [diff] [blame] | 1215 | RTL_W8 (Config4, MDIO_WRITE1); |
| 1216 | mdio_delay (); |
| 1217 | RTL_W8 (Config4, MDIO_WRITE1 | MDIO_CLK); |
| 1218 | mdio_delay (); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1219 | } |
| 1220 | } |
| 1221 | #endif |
| 1222 | |
| 1223 | static int mdio_read (struct net_device *dev, int phy_id, int location) |
| 1224 | { |
| 1225 | struct rtl8139_private *tp = netdev_priv(dev); |
| 1226 | int retval = 0; |
| 1227 | #ifdef CONFIG_8139TOO_8129 |
Pekka Enberg | 22f714b | 2005-05-12 19:38:47 -0400 | [diff] [blame] | 1228 | void __iomem *ioaddr = tp->mmio_addr; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1229 | int mii_cmd = (0xf6 << 10) | (phy_id << 5) | location; |
| 1230 | int i; |
| 1231 | #endif |
| 1232 | |
| 1233 | if (phy_id > 31) { /* Really a 8139. Use internal registers. */ |
Pekka Enberg | 22f714b | 2005-05-12 19:38:47 -0400 | [diff] [blame] | 1234 | void __iomem *ioaddr = tp->mmio_addr; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1235 | return location < 8 && mii_2_8139_map[location] ? |
Pekka Enberg | 22f714b | 2005-05-12 19:38:47 -0400 | [diff] [blame] | 1236 | RTL_R16 (mii_2_8139_map[location]) : 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1237 | } |
| 1238 | |
| 1239 | #ifdef CONFIG_8139TOO_8129 |
Pekka Enberg | 22f714b | 2005-05-12 19:38:47 -0400 | [diff] [blame] | 1240 | mdio_sync (ioaddr); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1241 | /* Shift the read command bits out. */ |
| 1242 | for (i = 15; i >= 0; i--) { |
| 1243 | int dataval = (mii_cmd & (1 << i)) ? MDIO_DATA_OUT : 0; |
| 1244 | |
Pekka Enberg | 22f714b | 2005-05-12 19:38:47 -0400 | [diff] [blame] | 1245 | RTL_W8 (Config4, MDIO_DIR | dataval); |
| 1246 | mdio_delay (); |
| 1247 | RTL_W8 (Config4, MDIO_DIR | dataval | MDIO_CLK); |
| 1248 | mdio_delay (); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1249 | } |
| 1250 | |
| 1251 | /* Read the two transition, 16 data, and wire-idle bits. */ |
| 1252 | for (i = 19; i > 0; i--) { |
Pekka Enberg | 22f714b | 2005-05-12 19:38:47 -0400 | [diff] [blame] | 1253 | RTL_W8 (Config4, 0); |
| 1254 | mdio_delay (); |
| 1255 | retval = (retval << 1) | ((RTL_R8 (Config4) & MDIO_DATA_IN) ? 1 : 0); |
| 1256 | RTL_W8 (Config4, MDIO_CLK); |
| 1257 | mdio_delay (); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1258 | } |
| 1259 | #endif |
| 1260 | |
| 1261 | return (retval >> 1) & 0xffff; |
| 1262 | } |
| 1263 | |
| 1264 | |
| 1265 | static void mdio_write (struct net_device *dev, int phy_id, int location, |
| 1266 | int value) |
| 1267 | { |
| 1268 | struct rtl8139_private *tp = netdev_priv(dev); |
| 1269 | #ifdef CONFIG_8139TOO_8129 |
Pekka Enberg | 22f714b | 2005-05-12 19:38:47 -0400 | [diff] [blame] | 1270 | void __iomem *ioaddr = tp->mmio_addr; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1271 | int mii_cmd = (0x5002 << 16) | (phy_id << 23) | (location << 18) | value; |
| 1272 | int i; |
| 1273 | #endif |
| 1274 | |
| 1275 | if (phy_id > 31) { /* Really a 8139. Use internal registers. */ |
Pekka Enberg | 22f714b | 2005-05-12 19:38:47 -0400 | [diff] [blame] | 1276 | void __iomem *ioaddr = tp->mmio_addr; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1277 | if (location == 0) { |
| 1278 | RTL_W8 (Cfg9346, Cfg9346_Unlock); |
| 1279 | RTL_W16 (BasicModeCtrl, value); |
| 1280 | RTL_W8 (Cfg9346, Cfg9346_Lock); |
| 1281 | } else if (location < 8 && mii_2_8139_map[location]) |
| 1282 | RTL_W16 (mii_2_8139_map[location], value); |
| 1283 | return; |
| 1284 | } |
| 1285 | |
| 1286 | #ifdef CONFIG_8139TOO_8129 |
Pekka Enberg | 22f714b | 2005-05-12 19:38:47 -0400 | [diff] [blame] | 1287 | mdio_sync (ioaddr); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1288 | |
| 1289 | /* Shift the command bits out. */ |
| 1290 | for (i = 31; i >= 0; i--) { |
| 1291 | int dataval = |
| 1292 | (mii_cmd & (1 << i)) ? MDIO_WRITE1 : MDIO_WRITE0; |
Pekka Enberg | 22f714b | 2005-05-12 19:38:47 -0400 | [diff] [blame] | 1293 | RTL_W8 (Config4, dataval); |
| 1294 | mdio_delay (); |
| 1295 | RTL_W8 (Config4, dataval | MDIO_CLK); |
| 1296 | mdio_delay (); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1297 | } |
| 1298 | /* Clear out extra bits. */ |
| 1299 | for (i = 2; i > 0; i--) { |
Pekka Enberg | 22f714b | 2005-05-12 19:38:47 -0400 | [diff] [blame] | 1300 | RTL_W8 (Config4, 0); |
| 1301 | mdio_delay (); |
| 1302 | RTL_W8 (Config4, MDIO_CLK); |
| 1303 | mdio_delay (); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1304 | } |
| 1305 | #endif |
| 1306 | } |
| 1307 | |
| 1308 | |
| 1309 | static int rtl8139_open (struct net_device *dev) |
| 1310 | { |
| 1311 | struct rtl8139_private *tp = netdev_priv(dev); |
| 1312 | int retval; |
Pekka Enberg | 22f714b | 2005-05-12 19:38:47 -0400 | [diff] [blame] | 1313 | void __iomem *ioaddr = tp->mmio_addr; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1314 | |
Thomas Gleixner | 1fb9df5 | 2006-07-01 19:29:39 -0700 | [diff] [blame] | 1315 | retval = request_irq (dev->irq, rtl8139_interrupt, IRQF_SHARED, dev->name, dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1316 | if (retval) |
| 1317 | return retval; |
| 1318 | |
| 1319 | tp->tx_bufs = pci_alloc_consistent(tp->pci_dev, TX_BUF_TOT_LEN, |
| 1320 | &tp->tx_bufs_dma); |
| 1321 | tp->rx_ring = pci_alloc_consistent(tp->pci_dev, RX_BUF_TOT_LEN, |
| 1322 | &tp->rx_ring_dma); |
| 1323 | if (tp->tx_bufs == NULL || tp->rx_ring == NULL) { |
| 1324 | free_irq(dev->irq, dev); |
| 1325 | |
| 1326 | if (tp->tx_bufs) |
| 1327 | pci_free_consistent(tp->pci_dev, TX_BUF_TOT_LEN, |
| 1328 | tp->tx_bufs, tp->tx_bufs_dma); |
| 1329 | if (tp->rx_ring) |
| 1330 | pci_free_consistent(tp->pci_dev, RX_BUF_TOT_LEN, |
| 1331 | tp->rx_ring, tp->rx_ring_dma); |
| 1332 | |
| 1333 | return -ENOMEM; |
| 1334 | |
| 1335 | } |
| 1336 | |
| 1337 | tp->mii.full_duplex = tp->mii.force_media; |
| 1338 | tp->tx_flag = (TX_FIFO_THRESH << 11) & 0x003f0000; |
| 1339 | |
| 1340 | rtl8139_init_ring (dev); |
| 1341 | rtl8139_hw_start (dev); |
| 1342 | netif_start_queue (dev); |
| 1343 | |
| 1344 | if (netif_msg_ifup(tp)) |
Greg Kroah-Hartman | 7c7459d | 2006-06-12 15:13:08 -0700 | [diff] [blame] | 1345 | printk(KERN_DEBUG "%s: rtl8139_open() ioaddr %#llx IRQ %d" |
| 1346 | " GP Pins %2.2x %s-duplex.\n", dev->name, |
| 1347 | (unsigned long long)pci_resource_start (tp->pci_dev, 1), |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1348 | dev->irq, RTL_R8 (MediaStatus), |
| 1349 | tp->mii.full_duplex ? "full" : "half"); |
| 1350 | |
Jeff Garzik | a15e038 | 2005-10-31 07:59:37 -0500 | [diff] [blame] | 1351 | rtl8139_start_thread(tp); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1352 | |
| 1353 | return 0; |
| 1354 | } |
| 1355 | |
| 1356 | |
| 1357 | static void rtl_check_media (struct net_device *dev, unsigned int init_media) |
| 1358 | { |
| 1359 | struct rtl8139_private *tp = netdev_priv(dev); |
| 1360 | |
| 1361 | if (tp->phys[0] >= 0) { |
| 1362 | mii_check_media(&tp->mii, netif_msg_link(tp), init_media); |
| 1363 | } |
| 1364 | } |
| 1365 | |
| 1366 | /* Start the hardware at open or resume. */ |
| 1367 | static void rtl8139_hw_start (struct net_device *dev) |
| 1368 | { |
| 1369 | struct rtl8139_private *tp = netdev_priv(dev); |
Pekka Enberg | 22f714b | 2005-05-12 19:38:47 -0400 | [diff] [blame] | 1370 | void __iomem *ioaddr = tp->mmio_addr; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1371 | u32 i; |
| 1372 | u8 tmp; |
| 1373 | |
| 1374 | /* Bring old chips out of low-power mode. */ |
| 1375 | if (rtl_chip_info[tp->chipset].flags & HasHltClk) |
| 1376 | RTL_W8 (HltClk, 'R'); |
| 1377 | |
| 1378 | rtl8139_chip_reset (ioaddr); |
| 1379 | |
| 1380 | /* unlock Config[01234] and BMCR register writes */ |
| 1381 | RTL_W8_F (Cfg9346, Cfg9346_Unlock); |
| 1382 | /* Restore our idea of the MAC address. */ |
| 1383 | RTL_W32_F (MAC0 + 0, cpu_to_le32 (*(u32 *) (dev->dev_addr + 0))); |
| 1384 | RTL_W32_F (MAC0 + 4, cpu_to_le32 (*(u32 *) (dev->dev_addr + 4))); |
| 1385 | |
| 1386 | /* Must enable Tx/Rx before setting transfer thresholds! */ |
| 1387 | RTL_W8 (ChipCmd, CmdRxEnb | CmdTxEnb); |
| 1388 | |
| 1389 | tp->rx_config = rtl8139_rx_config | AcceptBroadcast | AcceptMyPhys; |
| 1390 | RTL_W32 (RxConfig, tp->rx_config); |
| 1391 | RTL_W32 (TxConfig, rtl8139_tx_config); |
| 1392 | |
| 1393 | tp->cur_rx = 0; |
| 1394 | |
| 1395 | rtl_check_media (dev, 1); |
| 1396 | |
| 1397 | if (tp->chipset >= CH_8139B) { |
| 1398 | /* Disable magic packet scanning, which is enabled |
| 1399 | * when PM is enabled in Config1. It can be reenabled |
| 1400 | * via ETHTOOL_SWOL if desired. */ |
| 1401 | RTL_W8 (Config3, RTL_R8 (Config3) & ~Cfg3_Magic); |
| 1402 | } |
| 1403 | |
| 1404 | DPRINTK("init buffer addresses\n"); |
| 1405 | |
| 1406 | /* Lock Config[01234] and BMCR register writes */ |
| 1407 | RTL_W8 (Cfg9346, Cfg9346_Lock); |
| 1408 | |
| 1409 | /* init Rx ring buffer DMA address */ |
| 1410 | RTL_W32_F (RxBuf, tp->rx_ring_dma); |
| 1411 | |
| 1412 | /* init Tx buffer DMA addresses */ |
| 1413 | for (i = 0; i < NUM_TX_DESC; i++) |
| 1414 | RTL_W32_F (TxAddr0 + (i * 4), tp->tx_bufs_dma + (tp->tx_buf[i] - tp->tx_bufs)); |
| 1415 | |
| 1416 | RTL_W32 (RxMissed, 0); |
| 1417 | |
| 1418 | rtl8139_set_rx_mode (dev); |
| 1419 | |
| 1420 | /* no early-rx interrupts */ |
| 1421 | RTL_W16 (MultiIntr, RTL_R16 (MultiIntr) & MultiIntrClear); |
| 1422 | |
| 1423 | /* make sure RxTx has started */ |
| 1424 | tmp = RTL_R8 (ChipCmd); |
| 1425 | if ((!(tmp & CmdRxEnb)) || (!(tmp & CmdTxEnb))) |
| 1426 | RTL_W8 (ChipCmd, CmdRxEnb | CmdTxEnb); |
| 1427 | |
| 1428 | /* Enable all known interrupts by setting the interrupt mask. */ |
| 1429 | RTL_W16 (IntrMask, rtl8139_intr_mask); |
| 1430 | } |
| 1431 | |
| 1432 | |
| 1433 | /* Initialize the Rx and Tx rings, along with various 'dev' bits. */ |
| 1434 | static void rtl8139_init_ring (struct net_device *dev) |
| 1435 | { |
| 1436 | struct rtl8139_private *tp = netdev_priv(dev); |
| 1437 | int i; |
| 1438 | |
| 1439 | tp->cur_rx = 0; |
| 1440 | tp->cur_tx = 0; |
| 1441 | tp->dirty_tx = 0; |
| 1442 | |
| 1443 | for (i = 0; i < NUM_TX_DESC; i++) |
| 1444 | tp->tx_buf[i] = &tp->tx_bufs[i * TX_BUF_SIZE]; |
| 1445 | } |
| 1446 | |
| 1447 | |
| 1448 | /* This must be global for CONFIG_8139TOO_TUNE_TWISTER case */ |
| 1449 | static int next_tick = 3 * HZ; |
| 1450 | |
| 1451 | #ifndef CONFIG_8139TOO_TUNE_TWISTER |
| 1452 | static inline void rtl8139_tune_twister (struct net_device *dev, |
| 1453 | struct rtl8139_private *tp) {} |
| 1454 | #else |
| 1455 | enum TwisterParamVals { |
| 1456 | PARA78_default = 0x78fa8388, |
| 1457 | PARA7c_default = 0xcb38de43, /* param[0][3] */ |
| 1458 | PARA7c_xxx = 0xcb38de43, |
| 1459 | }; |
| 1460 | |
| 1461 | static const unsigned long param[4][4] = { |
| 1462 | {0xcb39de43, 0xcb39ce43, 0xfb38de03, 0xcb38de43}, |
| 1463 | {0xcb39de43, 0xcb39ce43, 0xcb39ce83, 0xcb39ce83}, |
| 1464 | {0xcb39de43, 0xcb39ce43, 0xcb39ce83, 0xcb39ce83}, |
| 1465 | {0xbb39de43, 0xbb39ce43, 0xbb39ce83, 0xbb39ce83} |
| 1466 | }; |
| 1467 | |
| 1468 | static void rtl8139_tune_twister (struct net_device *dev, |
| 1469 | struct rtl8139_private *tp) |
| 1470 | { |
| 1471 | int linkcase; |
Pekka Enberg | 22f714b | 2005-05-12 19:38:47 -0400 | [diff] [blame] | 1472 | void __iomem *ioaddr = tp->mmio_addr; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1473 | |
| 1474 | /* This is a complicated state machine to configure the "twister" for |
| 1475 | impedance/echos based on the cable length. |
| 1476 | All of this is magic and undocumented. |
| 1477 | */ |
| 1478 | switch (tp->twistie) { |
| 1479 | case 1: |
| 1480 | if (RTL_R16 (CSCR) & CSCR_LinkOKBit) { |
| 1481 | /* We have link beat, let us tune the twister. */ |
| 1482 | RTL_W16 (CSCR, CSCR_LinkDownOffCmd); |
| 1483 | tp->twistie = 2; /* Change to state 2. */ |
| 1484 | next_tick = HZ / 10; |
| 1485 | } else { |
| 1486 | /* Just put in some reasonable defaults for when beat returns. */ |
| 1487 | RTL_W16 (CSCR, CSCR_LinkDownCmd); |
| 1488 | RTL_W32 (FIFOTMS, 0x20); /* Turn on cable test mode. */ |
| 1489 | RTL_W32 (PARA78, PARA78_default); |
| 1490 | RTL_W32 (PARA7c, PARA7c_default); |
| 1491 | tp->twistie = 0; /* Bail from future actions. */ |
| 1492 | } |
| 1493 | break; |
| 1494 | case 2: |
| 1495 | /* Read how long it took to hear the echo. */ |
| 1496 | linkcase = RTL_R16 (CSCR) & CSCR_LinkStatusBits; |
| 1497 | if (linkcase == 0x7000) |
| 1498 | tp->twist_row = 3; |
| 1499 | else if (linkcase == 0x3000) |
| 1500 | tp->twist_row = 2; |
| 1501 | else if (linkcase == 0x1000) |
| 1502 | tp->twist_row = 1; |
| 1503 | else |
| 1504 | tp->twist_row = 0; |
| 1505 | tp->twist_col = 0; |
| 1506 | tp->twistie = 3; /* Change to state 2. */ |
| 1507 | next_tick = HZ / 10; |
| 1508 | break; |
| 1509 | case 3: |
| 1510 | /* Put out four tuning parameters, one per 100msec. */ |
| 1511 | if (tp->twist_col == 0) |
| 1512 | RTL_W16 (FIFOTMS, 0); |
| 1513 | RTL_W32 (PARA7c, param[(int) tp->twist_row] |
| 1514 | [(int) tp->twist_col]); |
| 1515 | next_tick = HZ / 10; |
| 1516 | if (++tp->twist_col >= 4) { |
| 1517 | /* For short cables we are done. |
| 1518 | For long cables (row == 3) check for mistune. */ |
| 1519 | tp->twistie = |
| 1520 | (tp->twist_row == 3) ? 4 : 0; |
| 1521 | } |
| 1522 | break; |
| 1523 | case 4: |
| 1524 | /* Special case for long cables: check for mistune. */ |
| 1525 | if ((RTL_R16 (CSCR) & |
| 1526 | CSCR_LinkStatusBits) == 0x7000) { |
| 1527 | tp->twistie = 0; |
| 1528 | break; |
| 1529 | } else { |
| 1530 | RTL_W32 (PARA7c, 0xfb38de03); |
| 1531 | tp->twistie = 5; |
| 1532 | next_tick = HZ / 10; |
| 1533 | } |
| 1534 | break; |
| 1535 | case 5: |
| 1536 | /* Retune for shorter cable (column 2). */ |
| 1537 | RTL_W32 (FIFOTMS, 0x20); |
| 1538 | RTL_W32 (PARA78, PARA78_default); |
| 1539 | RTL_W32 (PARA7c, PARA7c_default); |
| 1540 | RTL_W32 (FIFOTMS, 0x00); |
| 1541 | tp->twist_row = 2; |
| 1542 | tp->twist_col = 0; |
| 1543 | tp->twistie = 3; |
| 1544 | next_tick = HZ / 10; |
| 1545 | break; |
| 1546 | |
| 1547 | default: |
| 1548 | /* do nothing */ |
| 1549 | break; |
| 1550 | } |
| 1551 | } |
| 1552 | #endif /* CONFIG_8139TOO_TUNE_TWISTER */ |
| 1553 | |
| 1554 | static inline void rtl8139_thread_iter (struct net_device *dev, |
| 1555 | struct rtl8139_private *tp, |
Pekka Enberg | 22f714b | 2005-05-12 19:38:47 -0400 | [diff] [blame] | 1556 | void __iomem *ioaddr) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1557 | { |
| 1558 | int mii_lpa; |
| 1559 | |
| 1560 | mii_lpa = mdio_read (dev, tp->phys[0], MII_LPA); |
| 1561 | |
| 1562 | if (!tp->mii.force_media && mii_lpa != 0xffff) { |
| 1563 | int duplex = (mii_lpa & LPA_100FULL) |
| 1564 | || (mii_lpa & 0x01C0) == 0x0040; |
| 1565 | if (tp->mii.full_duplex != duplex) { |
| 1566 | tp->mii.full_duplex = duplex; |
| 1567 | |
| 1568 | if (mii_lpa) { |
| 1569 | printk (KERN_INFO |
| 1570 | "%s: Setting %s-duplex based on MII #%d link" |
| 1571 | " partner ability of %4.4x.\n", |
| 1572 | dev->name, |
| 1573 | tp->mii.full_duplex ? "full" : "half", |
| 1574 | tp->phys[0], mii_lpa); |
| 1575 | } else { |
| 1576 | printk(KERN_INFO"%s: media is unconnected, link down, or incompatible connection\n", |
| 1577 | dev->name); |
| 1578 | } |
| 1579 | #if 0 |
| 1580 | RTL_W8 (Cfg9346, Cfg9346_Unlock); |
| 1581 | RTL_W8 (Config1, tp->mii.full_duplex ? 0x60 : 0x20); |
| 1582 | RTL_W8 (Cfg9346, Cfg9346_Lock); |
| 1583 | #endif |
| 1584 | } |
| 1585 | } |
| 1586 | |
| 1587 | next_tick = HZ * 60; |
| 1588 | |
| 1589 | rtl8139_tune_twister (dev, tp); |
| 1590 | |
| 1591 | DPRINTK ("%s: Media selection tick, Link partner %4.4x.\n", |
| 1592 | dev->name, RTL_R16 (NWayLPAR)); |
| 1593 | DPRINTK ("%s: Other registers are IntMask %4.4x IntStatus %4.4x\n", |
| 1594 | dev->name, RTL_R16 (IntrMask), RTL_R16 (IntrStatus)); |
| 1595 | DPRINTK ("%s: Chip config %2.2x %2.2x.\n", |
| 1596 | dev->name, RTL_R8 (Config0), |
| 1597 | RTL_R8 (Config1)); |
| 1598 | } |
| 1599 | |
Jeff Garzik | a15e038 | 2005-10-31 07:59:37 -0500 | [diff] [blame] | 1600 | static void rtl8139_thread (void *_data) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1601 | { |
Jeff Garzik | a15e038 | 2005-10-31 07:59:37 -0500 | [diff] [blame] | 1602 | struct net_device *dev = _data; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1603 | struct rtl8139_private *tp = netdev_priv(dev); |
Francois Romieu | 371e8bc | 2006-01-31 01:04:33 +0100 | [diff] [blame] | 1604 | unsigned long thr_delay = next_tick; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1605 | |
Francois Romieu | 371e8bc | 2006-01-31 01:04:33 +0100 | [diff] [blame] | 1606 | if (tp->watchdog_fired) { |
| 1607 | tp->watchdog_fired = 0; |
| 1608 | rtl8139_tx_timeout_task(_data); |
Stephen Hemminger | 6756ae4 | 2006-03-20 22:23:58 -0800 | [diff] [blame] | 1609 | } else if (rtnl_trylock()) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1610 | rtl8139_thread_iter (dev, tp, tp->mmio_addr); |
| 1611 | rtnl_unlock (); |
Jeff Garzik | 760559e | 2005-11-10 04:31:55 -0500 | [diff] [blame] | 1612 | } else { |
| 1613 | /* unlikely race. mitigate with fast poll. */ |
| 1614 | thr_delay = HZ / 2; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1615 | } |
| 1616 | |
Jeff Garzik | 760559e | 2005-11-10 04:31:55 -0500 | [diff] [blame] | 1617 | schedule_delayed_work(&tp->thread, thr_delay); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1618 | } |
| 1619 | |
Jeff Garzik | a15e038 | 2005-10-31 07:59:37 -0500 | [diff] [blame] | 1620 | static void rtl8139_start_thread(struct rtl8139_private *tp) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1621 | { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1622 | tp->twistie = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1623 | if (tp->chipset == CH_8139_K) |
| 1624 | tp->twistie = 1; |
| 1625 | else if (tp->drv_flags & HAS_LNK_CHNG) |
| 1626 | return; |
| 1627 | |
Jeff Garzik | 38b492a | 2005-11-04 22:36:28 -0500 | [diff] [blame] | 1628 | tp->have_thread = 1; |
Jeff Garzik | a15e038 | 2005-10-31 07:59:37 -0500 | [diff] [blame] | 1629 | |
| 1630 | schedule_delayed_work(&tp->thread, next_tick); |
| 1631 | } |
| 1632 | |
| 1633 | static void rtl8139_stop_thread(struct rtl8139_private *tp) |
| 1634 | { |
Jeff Garzik | 38b492a | 2005-11-04 22:36:28 -0500 | [diff] [blame] | 1635 | if (tp->have_thread) { |
| 1636 | cancel_rearming_delayed_work(&tp->thread); |
| 1637 | tp->have_thread = 0; |
Francois Romieu | 371e8bc | 2006-01-31 01:04:33 +0100 | [diff] [blame] | 1638 | } else |
| 1639 | flush_scheduled_work(); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1640 | } |
| 1641 | |
| 1642 | static inline void rtl8139_tx_clear (struct rtl8139_private *tp) |
| 1643 | { |
| 1644 | tp->cur_tx = 0; |
| 1645 | tp->dirty_tx = 0; |
| 1646 | |
| 1647 | /* XXX account for unsent Tx packets in tp->stats.tx_dropped */ |
| 1648 | } |
| 1649 | |
Francois Romieu | 371e8bc | 2006-01-31 01:04:33 +0100 | [diff] [blame] | 1650 | static void rtl8139_tx_timeout_task (void *_data) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1651 | { |
Francois Romieu | 371e8bc | 2006-01-31 01:04:33 +0100 | [diff] [blame] | 1652 | struct net_device *dev = _data; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1653 | struct rtl8139_private *tp = netdev_priv(dev); |
Pekka Enberg | 22f714b | 2005-05-12 19:38:47 -0400 | [diff] [blame] | 1654 | void __iomem *ioaddr = tp->mmio_addr; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1655 | int i; |
| 1656 | u8 tmp8; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1657 | |
| 1658 | printk (KERN_DEBUG "%s: Transmit timeout, status %2.2x %4.4x %4.4x " |
| 1659 | "media %2.2x.\n", dev->name, RTL_R8 (ChipCmd), |
| 1660 | RTL_R16(IntrStatus), RTL_R16(IntrMask), RTL_R8(MediaStatus)); |
| 1661 | /* Emit info to figure out what went wrong. */ |
| 1662 | printk (KERN_DEBUG "%s: Tx queue start entry %ld dirty entry %ld.\n", |
| 1663 | dev->name, tp->cur_tx, tp->dirty_tx); |
| 1664 | for (i = 0; i < NUM_TX_DESC; i++) |
| 1665 | printk (KERN_DEBUG "%s: Tx descriptor %d is %8.8lx.%s\n", |
| 1666 | dev->name, i, RTL_R32 (TxStatus0 + (i * 4)), |
| 1667 | i == tp->dirty_tx % NUM_TX_DESC ? |
| 1668 | " (queue head)" : ""); |
| 1669 | |
| 1670 | tp->xstats.tx_timeouts++; |
| 1671 | |
| 1672 | /* disable Tx ASAP, if not already */ |
| 1673 | tmp8 = RTL_R8 (ChipCmd); |
| 1674 | if (tmp8 & CmdTxEnb) |
| 1675 | RTL_W8 (ChipCmd, CmdRxEnb); |
| 1676 | |
Francois Romieu | 371e8bc | 2006-01-31 01:04:33 +0100 | [diff] [blame] | 1677 | spin_lock_bh(&tp->rx_lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1678 | /* Disable interrupts by clearing the interrupt mask. */ |
| 1679 | RTL_W16 (IntrMask, 0x0000); |
| 1680 | |
| 1681 | /* Stop a shared interrupt from scavenging while we are. */ |
Francois Romieu | 371e8bc | 2006-01-31 01:04:33 +0100 | [diff] [blame] | 1682 | spin_lock_irq(&tp->lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1683 | rtl8139_tx_clear (tp); |
Francois Romieu | 371e8bc | 2006-01-31 01:04:33 +0100 | [diff] [blame] | 1684 | spin_unlock_irq(&tp->lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1685 | |
| 1686 | /* ...and finally, reset everything */ |
| 1687 | if (netif_running(dev)) { |
| 1688 | rtl8139_hw_start (dev); |
| 1689 | netif_wake_queue (dev); |
| 1690 | } |
Francois Romieu | 371e8bc | 2006-01-31 01:04:33 +0100 | [diff] [blame] | 1691 | spin_unlock_bh(&tp->rx_lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1692 | } |
| 1693 | |
Francois Romieu | 371e8bc | 2006-01-31 01:04:33 +0100 | [diff] [blame] | 1694 | static void rtl8139_tx_timeout (struct net_device *dev) |
| 1695 | { |
| 1696 | struct rtl8139_private *tp = netdev_priv(dev); |
| 1697 | |
| 1698 | if (!tp->have_thread) { |
| 1699 | INIT_WORK(&tp->thread, rtl8139_tx_timeout_task, dev); |
| 1700 | schedule_delayed_work(&tp->thread, next_tick); |
| 1701 | } else |
| 1702 | tp->watchdog_fired = 1; |
| 1703 | |
| 1704 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1705 | |
| 1706 | static int rtl8139_start_xmit (struct sk_buff *skb, struct net_device *dev) |
| 1707 | { |
| 1708 | struct rtl8139_private *tp = netdev_priv(dev); |
Pekka Enberg | 22f714b | 2005-05-12 19:38:47 -0400 | [diff] [blame] | 1709 | void __iomem *ioaddr = tp->mmio_addr; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1710 | unsigned int entry; |
| 1711 | unsigned int len = skb->len; |
Arjan van de Ven | bce305f | 2006-07-05 15:00:40 +0200 | [diff] [blame] | 1712 | unsigned long flags; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1713 | |
| 1714 | /* Calculate the next Tx descriptor entry. */ |
| 1715 | entry = tp->cur_tx % NUM_TX_DESC; |
| 1716 | |
| 1717 | /* Note: the chip doesn't have auto-pad! */ |
| 1718 | if (likely(len < TX_BUF_SIZE)) { |
| 1719 | if (len < ETH_ZLEN) |
| 1720 | memset(tp->tx_buf[entry], 0, ETH_ZLEN); |
| 1721 | skb_copy_and_csum_dev(skb, tp->tx_buf[entry]); |
| 1722 | dev_kfree_skb(skb); |
| 1723 | } else { |
| 1724 | dev_kfree_skb(skb); |
| 1725 | tp->stats.tx_dropped++; |
| 1726 | return 0; |
| 1727 | } |
| 1728 | |
Arjan van de Ven | bce305f | 2006-07-05 15:00:40 +0200 | [diff] [blame] | 1729 | spin_lock_irqsave(&tp->lock, flags); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1730 | RTL_W32_F (TxStatus0 + (entry * sizeof (u32)), |
| 1731 | tp->tx_flag | max(len, (unsigned int)ETH_ZLEN)); |
| 1732 | |
| 1733 | dev->trans_start = jiffies; |
| 1734 | |
| 1735 | tp->cur_tx++; |
| 1736 | wmb(); |
| 1737 | |
| 1738 | if ((tp->cur_tx - NUM_TX_DESC) == tp->dirty_tx) |
| 1739 | netif_stop_queue (dev); |
Arjan van de Ven | bce305f | 2006-07-05 15:00:40 +0200 | [diff] [blame] | 1740 | spin_unlock_irqrestore(&tp->lock, flags); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1741 | |
| 1742 | if (netif_msg_tx_queued(tp)) |
| 1743 | printk (KERN_DEBUG "%s: Queued Tx packet size %u to slot %d.\n", |
| 1744 | dev->name, len, entry); |
| 1745 | |
| 1746 | return 0; |
| 1747 | } |
| 1748 | |
| 1749 | |
| 1750 | static void rtl8139_tx_interrupt (struct net_device *dev, |
| 1751 | struct rtl8139_private *tp, |
Pekka Enberg | 22f714b | 2005-05-12 19:38:47 -0400 | [diff] [blame] | 1752 | void __iomem *ioaddr) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1753 | { |
| 1754 | unsigned long dirty_tx, tx_left; |
| 1755 | |
| 1756 | assert (dev != NULL); |
| 1757 | assert (ioaddr != NULL); |
| 1758 | |
| 1759 | dirty_tx = tp->dirty_tx; |
| 1760 | tx_left = tp->cur_tx - dirty_tx; |
| 1761 | while (tx_left > 0) { |
| 1762 | int entry = dirty_tx % NUM_TX_DESC; |
| 1763 | int txstatus; |
| 1764 | |
| 1765 | txstatus = RTL_R32 (TxStatus0 + (entry * sizeof (u32))); |
| 1766 | |
| 1767 | if (!(txstatus & (TxStatOK | TxUnderrun | TxAborted))) |
| 1768 | break; /* It still hasn't been Txed */ |
| 1769 | |
| 1770 | /* Note: TxCarrierLost is always asserted at 100mbps. */ |
| 1771 | if (txstatus & (TxOutOfWindow | TxAborted)) { |
| 1772 | /* There was an major error, log it. */ |
| 1773 | if (netif_msg_tx_err(tp)) |
| 1774 | printk(KERN_DEBUG "%s: Transmit error, Tx status %8.8x.\n", |
| 1775 | dev->name, txstatus); |
| 1776 | tp->stats.tx_errors++; |
| 1777 | if (txstatus & TxAborted) { |
| 1778 | tp->stats.tx_aborted_errors++; |
| 1779 | RTL_W32 (TxConfig, TxClearAbt); |
| 1780 | RTL_W16 (IntrStatus, TxErr); |
| 1781 | wmb(); |
| 1782 | } |
| 1783 | if (txstatus & TxCarrierLost) |
| 1784 | tp->stats.tx_carrier_errors++; |
| 1785 | if (txstatus & TxOutOfWindow) |
| 1786 | tp->stats.tx_window_errors++; |
| 1787 | } else { |
| 1788 | if (txstatus & TxUnderrun) { |
| 1789 | /* Add 64 to the Tx FIFO threshold. */ |
| 1790 | if (tp->tx_flag < 0x00300000) |
| 1791 | tp->tx_flag += 0x00020000; |
| 1792 | tp->stats.tx_fifo_errors++; |
| 1793 | } |
| 1794 | tp->stats.collisions += (txstatus >> 24) & 15; |
| 1795 | tp->stats.tx_bytes += txstatus & 0x7ff; |
| 1796 | tp->stats.tx_packets++; |
| 1797 | } |
| 1798 | |
| 1799 | dirty_tx++; |
| 1800 | tx_left--; |
| 1801 | } |
| 1802 | |
| 1803 | #ifndef RTL8139_NDEBUG |
| 1804 | if (tp->cur_tx - dirty_tx > NUM_TX_DESC) { |
| 1805 | printk (KERN_ERR "%s: Out-of-sync dirty pointer, %ld vs. %ld.\n", |
| 1806 | dev->name, dirty_tx, tp->cur_tx); |
| 1807 | dirty_tx += NUM_TX_DESC; |
| 1808 | } |
| 1809 | #endif /* RTL8139_NDEBUG */ |
| 1810 | |
| 1811 | /* only wake the queue if we did work, and the queue is stopped */ |
| 1812 | if (tp->dirty_tx != dirty_tx) { |
| 1813 | tp->dirty_tx = dirty_tx; |
| 1814 | mb(); |
| 1815 | netif_wake_queue (dev); |
| 1816 | } |
| 1817 | } |
| 1818 | |
| 1819 | |
| 1820 | /* TODO: clean this up! Rx reset need not be this intensive */ |
| 1821 | static void rtl8139_rx_err (u32 rx_status, struct net_device *dev, |
Pekka Enberg | 22f714b | 2005-05-12 19:38:47 -0400 | [diff] [blame] | 1822 | struct rtl8139_private *tp, void __iomem *ioaddr) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1823 | { |
| 1824 | u8 tmp8; |
| 1825 | #ifdef CONFIG_8139_OLD_RX_RESET |
| 1826 | int tmp_work; |
| 1827 | #endif |
| 1828 | |
Jeff Garzik | f3b197a | 2006-05-26 21:39:03 -0400 | [diff] [blame] | 1829 | if (netif_msg_rx_err (tp)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1830 | printk(KERN_DEBUG "%s: Ethernet frame had errors, status %8.8x.\n", |
| 1831 | dev->name, rx_status); |
| 1832 | tp->stats.rx_errors++; |
| 1833 | if (!(rx_status & RxStatusOK)) { |
| 1834 | if (rx_status & RxTooLong) { |
| 1835 | DPRINTK ("%s: Oversized Ethernet frame, status %4.4x!\n", |
| 1836 | dev->name, rx_status); |
| 1837 | /* A.C.: The chip hangs here. */ |
| 1838 | } |
| 1839 | if (rx_status & (RxBadSymbol | RxBadAlign)) |
| 1840 | tp->stats.rx_frame_errors++; |
| 1841 | if (rx_status & (RxRunt | RxTooLong)) |
| 1842 | tp->stats.rx_length_errors++; |
| 1843 | if (rx_status & RxCRCErr) |
| 1844 | tp->stats.rx_crc_errors++; |
| 1845 | } else { |
| 1846 | tp->xstats.rx_lost_in_ring++; |
| 1847 | } |
| 1848 | |
| 1849 | #ifndef CONFIG_8139_OLD_RX_RESET |
| 1850 | tmp8 = RTL_R8 (ChipCmd); |
| 1851 | RTL_W8 (ChipCmd, tmp8 & ~CmdRxEnb); |
| 1852 | RTL_W8 (ChipCmd, tmp8); |
| 1853 | RTL_W32 (RxConfig, tp->rx_config); |
| 1854 | tp->cur_rx = 0; |
| 1855 | #else |
| 1856 | /* Reset the receiver, based on RealTek recommendation. (Bug?) */ |
| 1857 | |
| 1858 | /* disable receive */ |
| 1859 | RTL_W8_F (ChipCmd, CmdTxEnb); |
| 1860 | tmp_work = 200; |
| 1861 | while (--tmp_work > 0) { |
| 1862 | udelay(1); |
| 1863 | tmp8 = RTL_R8 (ChipCmd); |
| 1864 | if (!(tmp8 & CmdRxEnb)) |
| 1865 | break; |
| 1866 | } |
| 1867 | if (tmp_work <= 0) |
| 1868 | printk (KERN_WARNING PFX "rx stop wait too long\n"); |
| 1869 | /* restart receive */ |
| 1870 | tmp_work = 200; |
| 1871 | while (--tmp_work > 0) { |
| 1872 | RTL_W8_F (ChipCmd, CmdRxEnb | CmdTxEnb); |
| 1873 | udelay(1); |
| 1874 | tmp8 = RTL_R8 (ChipCmd); |
| 1875 | if ((tmp8 & CmdRxEnb) && (tmp8 & CmdTxEnb)) |
| 1876 | break; |
| 1877 | } |
| 1878 | if (tmp_work <= 0) |
| 1879 | printk (KERN_WARNING PFX "tx/rx enable wait too long\n"); |
| 1880 | |
| 1881 | /* and reinitialize all rx related registers */ |
| 1882 | RTL_W8_F (Cfg9346, Cfg9346_Unlock); |
| 1883 | /* Must enable Tx/Rx before setting transfer thresholds! */ |
| 1884 | RTL_W8 (ChipCmd, CmdRxEnb | CmdTxEnb); |
| 1885 | |
| 1886 | tp->rx_config = rtl8139_rx_config | AcceptBroadcast | AcceptMyPhys; |
| 1887 | RTL_W32 (RxConfig, tp->rx_config); |
| 1888 | tp->cur_rx = 0; |
| 1889 | |
| 1890 | DPRINTK("init buffer addresses\n"); |
| 1891 | |
| 1892 | /* Lock Config[01234] and BMCR register writes */ |
| 1893 | RTL_W8 (Cfg9346, Cfg9346_Lock); |
| 1894 | |
| 1895 | /* init Rx ring buffer DMA address */ |
| 1896 | RTL_W32_F (RxBuf, tp->rx_ring_dma); |
| 1897 | |
| 1898 | /* A.C.: Reset the multicast list. */ |
| 1899 | __set_rx_mode (dev); |
| 1900 | #endif |
| 1901 | } |
| 1902 | |
| 1903 | #if RX_BUF_IDX == 3 |
| 1904 | static __inline__ void wrap_copy(struct sk_buff *skb, const unsigned char *ring, |
| 1905 | u32 offset, unsigned int size) |
| 1906 | { |
| 1907 | u32 left = RX_BUF_LEN - offset; |
| 1908 | |
| 1909 | if (size > left) { |
| 1910 | memcpy(skb->data, ring + offset, left); |
| 1911 | memcpy(skb->data+left, ring, size - left); |
| 1912 | } else |
| 1913 | memcpy(skb->data, ring + offset, size); |
| 1914 | } |
| 1915 | #endif |
| 1916 | |
| 1917 | static void rtl8139_isr_ack(struct rtl8139_private *tp) |
| 1918 | { |
Pekka Enberg | 22f714b | 2005-05-12 19:38:47 -0400 | [diff] [blame] | 1919 | void __iomem *ioaddr = tp->mmio_addr; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1920 | u16 status; |
| 1921 | |
| 1922 | status = RTL_R16 (IntrStatus) & RxAckBits; |
| 1923 | |
| 1924 | /* Clear out errors and receive interrupts */ |
| 1925 | if (likely(status != 0)) { |
| 1926 | if (unlikely(status & (RxFIFOOver | RxOverflow))) { |
| 1927 | tp->stats.rx_errors++; |
| 1928 | if (status & RxFIFOOver) |
| 1929 | tp->stats.rx_fifo_errors++; |
| 1930 | } |
| 1931 | RTL_W16_F (IntrStatus, RxAckBits); |
| 1932 | } |
| 1933 | } |
| 1934 | |
| 1935 | static int rtl8139_rx(struct net_device *dev, struct rtl8139_private *tp, |
| 1936 | int budget) |
| 1937 | { |
Pekka Enberg | 22f714b | 2005-05-12 19:38:47 -0400 | [diff] [blame] | 1938 | void __iomem *ioaddr = tp->mmio_addr; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1939 | int received = 0; |
| 1940 | unsigned char *rx_ring = tp->rx_ring; |
| 1941 | unsigned int cur_rx = tp->cur_rx; |
| 1942 | unsigned int rx_size = 0; |
| 1943 | |
| 1944 | DPRINTK ("%s: In rtl8139_rx(), current %4.4x BufAddr %4.4x," |
| 1945 | " free to %4.4x, Cmd %2.2x.\n", dev->name, (u16)cur_rx, |
| 1946 | RTL_R16 (RxBufAddr), |
| 1947 | RTL_R16 (RxBufPtr), RTL_R8 (ChipCmd)); |
| 1948 | |
Jeff Garzik | f3b197a | 2006-05-26 21:39:03 -0400 | [diff] [blame] | 1949 | while (netif_running(dev) && received < budget |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1950 | && (RTL_R8 (ChipCmd) & RxBufEmpty) == 0) { |
| 1951 | u32 ring_offset = cur_rx % RX_BUF_LEN; |
| 1952 | u32 rx_status; |
| 1953 | unsigned int pkt_size; |
| 1954 | struct sk_buff *skb; |
| 1955 | |
| 1956 | rmb(); |
| 1957 | |
| 1958 | /* read size+status of next frame from DMA ring buffer */ |
| 1959 | rx_status = le32_to_cpu (*(u32 *) (rx_ring + ring_offset)); |
| 1960 | rx_size = rx_status >> 16; |
| 1961 | pkt_size = rx_size - 4; |
| 1962 | |
| 1963 | if (netif_msg_rx_status(tp)) |
| 1964 | printk(KERN_DEBUG "%s: rtl8139_rx() status %4.4x, size %4.4x," |
| 1965 | " cur %4.4x.\n", dev->name, rx_status, |
| 1966 | rx_size, cur_rx); |
| 1967 | #if RTL8139_DEBUG > 2 |
| 1968 | { |
| 1969 | int i; |
| 1970 | DPRINTK ("%s: Frame contents ", dev->name); |
| 1971 | for (i = 0; i < 70; i++) |
| 1972 | printk (" %2.2x", |
| 1973 | rx_ring[ring_offset + i]); |
| 1974 | printk (".\n"); |
| 1975 | } |
| 1976 | #endif |
| 1977 | |
| 1978 | /* Packet copy from FIFO still in progress. |
| 1979 | * Theoretically, this should never happen |
| 1980 | * since EarlyRx is disabled. |
| 1981 | */ |
| 1982 | if (unlikely(rx_size == 0xfff0)) { |
| 1983 | if (!tp->fifo_copy_timeout) |
| 1984 | tp->fifo_copy_timeout = jiffies + 2; |
| 1985 | else if (time_after(jiffies, tp->fifo_copy_timeout)) { |
| 1986 | DPRINTK ("%s: hung FIFO. Reset.", dev->name); |
| 1987 | rx_size = 0; |
| 1988 | goto no_early_rx; |
| 1989 | } |
| 1990 | if (netif_msg_intr(tp)) { |
| 1991 | printk(KERN_DEBUG "%s: fifo copy in progress.", |
| 1992 | dev->name); |
| 1993 | } |
| 1994 | tp->xstats.early_rx++; |
| 1995 | break; |
| 1996 | } |
| 1997 | |
| 1998 | no_early_rx: |
| 1999 | tp->fifo_copy_timeout = 0; |
| 2000 | |
| 2001 | /* If Rx err or invalid rx_size/rx_status received |
| 2002 | * (which happens if we get lost in the ring), |
| 2003 | * Rx process gets reset, so we abort any further |
| 2004 | * Rx processing. |
| 2005 | */ |
| 2006 | if (unlikely((rx_size > (MAX_ETH_FRAME_SIZE+4)) || |
| 2007 | (rx_size < 8) || |
| 2008 | (!(rx_status & RxStatusOK)))) { |
| 2009 | rtl8139_rx_err (rx_status, dev, tp, ioaddr); |
| 2010 | received = -1; |
| 2011 | goto out; |
| 2012 | } |
| 2013 | |
| 2014 | /* Malloc up new buffer, compatible with net-2e. */ |
| 2015 | /* Omit the four octet CRC from the length. */ |
| 2016 | |
| 2017 | skb = dev_alloc_skb (pkt_size + 2); |
| 2018 | if (likely(skb)) { |
| 2019 | skb->dev = dev; |
| 2020 | skb_reserve (skb, 2); /* 16 byte align the IP fields. */ |
| 2021 | #if RX_BUF_IDX == 3 |
| 2022 | wrap_copy(skb, rx_ring, ring_offset+4, pkt_size); |
| 2023 | #else |
| 2024 | eth_copy_and_sum (skb, &rx_ring[ring_offset + 4], pkt_size, 0); |
| 2025 | #endif |
| 2026 | skb_put (skb, pkt_size); |
| 2027 | |
| 2028 | skb->protocol = eth_type_trans (skb, dev); |
| 2029 | |
| 2030 | dev->last_rx = jiffies; |
| 2031 | tp->stats.rx_bytes += pkt_size; |
| 2032 | tp->stats.rx_packets++; |
| 2033 | |
| 2034 | netif_receive_skb (skb); |
| 2035 | } else { |
Jeff Garzik | f3b197a | 2006-05-26 21:39:03 -0400 | [diff] [blame] | 2036 | if (net_ratelimit()) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2037 | printk (KERN_WARNING |
| 2038 | "%s: Memory squeeze, dropping packet.\n", |
| 2039 | dev->name); |
| 2040 | tp->stats.rx_dropped++; |
| 2041 | } |
| 2042 | received++; |
| 2043 | |
| 2044 | cur_rx = (cur_rx + rx_size + 4 + 3) & ~3; |
| 2045 | RTL_W16 (RxBufPtr, (u16) (cur_rx - 16)); |
| 2046 | |
| 2047 | rtl8139_isr_ack(tp); |
| 2048 | } |
| 2049 | |
| 2050 | if (unlikely(!received || rx_size == 0xfff0)) |
| 2051 | rtl8139_isr_ack(tp); |
| 2052 | |
| 2053 | #if RTL8139_DEBUG > 1 |
| 2054 | DPRINTK ("%s: Done rtl8139_rx(), current %4.4x BufAddr %4.4x," |
| 2055 | " free to %4.4x, Cmd %2.2x.\n", dev->name, cur_rx, |
| 2056 | RTL_R16 (RxBufAddr), |
| 2057 | RTL_R16 (RxBufPtr), RTL_R8 (ChipCmd)); |
| 2058 | #endif |
| 2059 | |
| 2060 | tp->cur_rx = cur_rx; |
| 2061 | |
| 2062 | /* |
| 2063 | * The receive buffer should be mostly empty. |
| 2064 | * Tell NAPI to reenable the Rx irq. |
| 2065 | */ |
| 2066 | if (tp->fifo_copy_timeout) |
| 2067 | received = budget; |
| 2068 | |
| 2069 | out: |
| 2070 | return received; |
| 2071 | } |
| 2072 | |
| 2073 | |
| 2074 | static void rtl8139_weird_interrupt (struct net_device *dev, |
| 2075 | struct rtl8139_private *tp, |
Pekka Enberg | 22f714b | 2005-05-12 19:38:47 -0400 | [diff] [blame] | 2076 | void __iomem *ioaddr, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2077 | int status, int link_changed) |
| 2078 | { |
| 2079 | DPRINTK ("%s: Abnormal interrupt, status %8.8x.\n", |
| 2080 | dev->name, status); |
| 2081 | |
| 2082 | assert (dev != NULL); |
| 2083 | assert (tp != NULL); |
| 2084 | assert (ioaddr != NULL); |
| 2085 | |
| 2086 | /* Update the error count. */ |
| 2087 | tp->stats.rx_missed_errors += RTL_R32 (RxMissed); |
| 2088 | RTL_W32 (RxMissed, 0); |
| 2089 | |
| 2090 | if ((status & RxUnderrun) && link_changed && |
| 2091 | (tp->drv_flags & HAS_LNK_CHNG)) { |
| 2092 | rtl_check_media(dev, 0); |
| 2093 | status &= ~RxUnderrun; |
| 2094 | } |
| 2095 | |
| 2096 | if (status & (RxUnderrun | RxErr)) |
| 2097 | tp->stats.rx_errors++; |
| 2098 | |
| 2099 | if (status & PCSTimeout) |
| 2100 | tp->stats.rx_length_errors++; |
| 2101 | if (status & RxUnderrun) |
| 2102 | tp->stats.rx_fifo_errors++; |
| 2103 | if (status & PCIErr) { |
| 2104 | u16 pci_cmd_status; |
| 2105 | pci_read_config_word (tp->pci_dev, PCI_STATUS, &pci_cmd_status); |
| 2106 | pci_write_config_word (tp->pci_dev, PCI_STATUS, pci_cmd_status); |
| 2107 | |
| 2108 | printk (KERN_ERR "%s: PCI Bus error %4.4x.\n", |
| 2109 | dev->name, pci_cmd_status); |
| 2110 | } |
| 2111 | } |
| 2112 | |
| 2113 | static int rtl8139_poll(struct net_device *dev, int *budget) |
| 2114 | { |
| 2115 | struct rtl8139_private *tp = netdev_priv(dev); |
Pekka Enberg | 22f714b | 2005-05-12 19:38:47 -0400 | [diff] [blame] | 2116 | void __iomem *ioaddr = tp->mmio_addr; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2117 | int orig_budget = min(*budget, dev->quota); |
| 2118 | int done = 1; |
| 2119 | |
| 2120 | spin_lock(&tp->rx_lock); |
| 2121 | if (likely(RTL_R16(IntrStatus) & RxAckBits)) { |
| 2122 | int work_done; |
| 2123 | |
| 2124 | work_done = rtl8139_rx(dev, tp, orig_budget); |
| 2125 | if (likely(work_done > 0)) { |
| 2126 | *budget -= work_done; |
| 2127 | dev->quota -= work_done; |
| 2128 | done = (work_done < orig_budget); |
| 2129 | } |
| 2130 | } |
| 2131 | |
| 2132 | if (done) { |
| 2133 | /* |
| 2134 | * Order is important since data can get interrupted |
| 2135 | * again when we think we are done. |
| 2136 | */ |
| 2137 | local_irq_disable(); |
| 2138 | RTL_W16_F(IntrMask, rtl8139_intr_mask); |
| 2139 | __netif_rx_complete(dev); |
| 2140 | local_irq_enable(); |
| 2141 | } |
| 2142 | spin_unlock(&tp->rx_lock); |
| 2143 | |
| 2144 | return !done; |
| 2145 | } |
| 2146 | |
| 2147 | /* The interrupt handler does all of the Rx thread work and cleans up |
| 2148 | after the Tx thread. */ |
| 2149 | static irqreturn_t rtl8139_interrupt (int irq, void *dev_instance, |
| 2150 | struct pt_regs *regs) |
| 2151 | { |
| 2152 | struct net_device *dev = (struct net_device *) dev_instance; |
| 2153 | struct rtl8139_private *tp = netdev_priv(dev); |
Pekka Enberg | 22f714b | 2005-05-12 19:38:47 -0400 | [diff] [blame] | 2154 | void __iomem *ioaddr = tp->mmio_addr; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2155 | u16 status, ackstat; |
| 2156 | int link_changed = 0; /* avoid bogus "uninit" warning */ |
| 2157 | int handled = 0; |
| 2158 | |
| 2159 | spin_lock (&tp->lock); |
| 2160 | status = RTL_R16 (IntrStatus); |
| 2161 | |
| 2162 | /* shared irq? */ |
Jeff Garzik | f3b197a | 2006-05-26 21:39:03 -0400 | [diff] [blame] | 2163 | if (unlikely((status & rtl8139_intr_mask) == 0)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2164 | goto out; |
| 2165 | |
| 2166 | handled = 1; |
| 2167 | |
| 2168 | /* h/w no longer present (hotplug?) or major error, bail */ |
Jeff Garzik | f3b197a | 2006-05-26 21:39:03 -0400 | [diff] [blame] | 2169 | if (unlikely(status == 0xFFFF)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2170 | goto out; |
| 2171 | |
| 2172 | /* close possible race's with dev_close */ |
| 2173 | if (unlikely(!netif_running(dev))) { |
| 2174 | RTL_W16 (IntrMask, 0); |
| 2175 | goto out; |
| 2176 | } |
| 2177 | |
| 2178 | /* Acknowledge all of the current interrupt sources ASAP, but |
| 2179 | an first get an additional status bit from CSCR. */ |
| 2180 | if (unlikely(status & RxUnderrun)) |
| 2181 | link_changed = RTL_R16 (CSCR) & CSCR_LinkChangeBit; |
| 2182 | |
| 2183 | ackstat = status & ~(RxAckBits | TxErr); |
| 2184 | if (ackstat) |
| 2185 | RTL_W16 (IntrStatus, ackstat); |
| 2186 | |
| 2187 | /* Receive packets are processed by poll routine. |
| 2188 | If not running start it now. */ |
| 2189 | if (status & RxAckBits){ |
| 2190 | if (netif_rx_schedule_prep(dev)) { |
| 2191 | RTL_W16_F (IntrMask, rtl8139_norx_intr_mask); |
| 2192 | __netif_rx_schedule (dev); |
| 2193 | } |
| 2194 | } |
| 2195 | |
| 2196 | /* Check uncommon events with one test. */ |
| 2197 | if (unlikely(status & (PCIErr | PCSTimeout | RxUnderrun | RxErr))) |
| 2198 | rtl8139_weird_interrupt (dev, tp, ioaddr, |
| 2199 | status, link_changed); |
| 2200 | |
| 2201 | if (status & (TxOK | TxErr)) { |
| 2202 | rtl8139_tx_interrupt (dev, tp, ioaddr); |
| 2203 | if (status & TxErr) |
| 2204 | RTL_W16 (IntrStatus, TxErr); |
| 2205 | } |
| 2206 | out: |
| 2207 | spin_unlock (&tp->lock); |
| 2208 | |
| 2209 | DPRINTK ("%s: exiting interrupt, intr_status=%#4.4x.\n", |
| 2210 | dev->name, RTL_R16 (IntrStatus)); |
| 2211 | return IRQ_RETVAL(handled); |
| 2212 | } |
| 2213 | |
| 2214 | #ifdef CONFIG_NET_POLL_CONTROLLER |
| 2215 | /* |
| 2216 | * Polling receive - used by netconsole and other diagnostic tools |
| 2217 | * to allow network i/o with interrupts disabled. |
| 2218 | */ |
| 2219 | static void rtl8139_poll_controller(struct net_device *dev) |
| 2220 | { |
| 2221 | disable_irq(dev->irq); |
| 2222 | rtl8139_interrupt(dev->irq, dev, NULL); |
| 2223 | enable_irq(dev->irq); |
| 2224 | } |
| 2225 | #endif |
| 2226 | |
| 2227 | static int rtl8139_close (struct net_device *dev) |
| 2228 | { |
| 2229 | struct rtl8139_private *tp = netdev_priv(dev); |
Pekka Enberg | 22f714b | 2005-05-12 19:38:47 -0400 | [diff] [blame] | 2230 | void __iomem *ioaddr = tp->mmio_addr; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2231 | unsigned long flags; |
| 2232 | |
| 2233 | netif_stop_queue (dev); |
| 2234 | |
Jeff Garzik | a15e038 | 2005-10-31 07:59:37 -0500 | [diff] [blame] | 2235 | rtl8139_stop_thread(tp); |
| 2236 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2237 | if (netif_msg_ifdown(tp)) |
| 2238 | printk(KERN_DEBUG "%s: Shutting down ethercard, status was 0x%4.4x.\n", |
| 2239 | dev->name, RTL_R16 (IntrStatus)); |
| 2240 | |
| 2241 | spin_lock_irqsave (&tp->lock, flags); |
| 2242 | |
| 2243 | /* Stop the chip's Tx and Rx DMA processes. */ |
| 2244 | RTL_W8 (ChipCmd, 0); |
| 2245 | |
| 2246 | /* Disable interrupts by clearing the interrupt mask. */ |
| 2247 | RTL_W16 (IntrMask, 0); |
| 2248 | |
| 2249 | /* Update the error counts. */ |
| 2250 | tp->stats.rx_missed_errors += RTL_R32 (RxMissed); |
| 2251 | RTL_W32 (RxMissed, 0); |
| 2252 | |
| 2253 | spin_unlock_irqrestore (&tp->lock, flags); |
| 2254 | |
| 2255 | synchronize_irq (dev->irq); /* racy, but that's ok here */ |
| 2256 | free_irq (dev->irq, dev); |
| 2257 | |
| 2258 | rtl8139_tx_clear (tp); |
| 2259 | |
| 2260 | pci_free_consistent(tp->pci_dev, RX_BUF_TOT_LEN, |
| 2261 | tp->rx_ring, tp->rx_ring_dma); |
| 2262 | pci_free_consistent(tp->pci_dev, TX_BUF_TOT_LEN, |
| 2263 | tp->tx_bufs, tp->tx_bufs_dma); |
| 2264 | tp->rx_ring = NULL; |
| 2265 | tp->tx_bufs = NULL; |
| 2266 | |
| 2267 | /* Green! Put the chip in low-power mode. */ |
| 2268 | RTL_W8 (Cfg9346, Cfg9346_Unlock); |
| 2269 | |
| 2270 | if (rtl_chip_info[tp->chipset].flags & HasHltClk) |
| 2271 | RTL_W8 (HltClk, 'H'); /* 'R' would leave the clock running. */ |
| 2272 | |
| 2273 | return 0; |
| 2274 | } |
| 2275 | |
| 2276 | |
| 2277 | /* Get the ethtool Wake-on-LAN settings. Assumes that wol points to |
| 2278 | kernel memory, *wol has been initialized as {ETHTOOL_GWOL}, and |
| 2279 | other threads or interrupts aren't messing with the 8139. */ |
| 2280 | static void rtl8139_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol) |
| 2281 | { |
| 2282 | struct rtl8139_private *np = netdev_priv(dev); |
Pekka Enberg | 22f714b | 2005-05-12 19:38:47 -0400 | [diff] [blame] | 2283 | void __iomem *ioaddr = np->mmio_addr; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2284 | |
| 2285 | spin_lock_irq(&np->lock); |
| 2286 | if (rtl_chip_info[np->chipset].flags & HasLWake) { |
| 2287 | u8 cfg3 = RTL_R8 (Config3); |
| 2288 | u8 cfg5 = RTL_R8 (Config5); |
| 2289 | |
| 2290 | wol->supported = WAKE_PHY | WAKE_MAGIC |
| 2291 | | WAKE_UCAST | WAKE_MCAST | WAKE_BCAST; |
| 2292 | |
| 2293 | wol->wolopts = 0; |
| 2294 | if (cfg3 & Cfg3_LinkUp) |
| 2295 | wol->wolopts |= WAKE_PHY; |
| 2296 | if (cfg3 & Cfg3_Magic) |
| 2297 | wol->wolopts |= WAKE_MAGIC; |
| 2298 | /* (KON)FIXME: See how netdev_set_wol() handles the |
| 2299 | following constants. */ |
| 2300 | if (cfg5 & Cfg5_UWF) |
| 2301 | wol->wolopts |= WAKE_UCAST; |
| 2302 | if (cfg5 & Cfg5_MWF) |
| 2303 | wol->wolopts |= WAKE_MCAST; |
| 2304 | if (cfg5 & Cfg5_BWF) |
| 2305 | wol->wolopts |= WAKE_BCAST; |
| 2306 | } |
| 2307 | spin_unlock_irq(&np->lock); |
| 2308 | } |
| 2309 | |
| 2310 | |
| 2311 | /* Set the ethtool Wake-on-LAN settings. Return 0 or -errno. Assumes |
| 2312 | that wol points to kernel memory and other threads or interrupts |
| 2313 | aren't messing with the 8139. */ |
| 2314 | static int rtl8139_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol) |
| 2315 | { |
| 2316 | struct rtl8139_private *np = netdev_priv(dev); |
Pekka Enberg | 22f714b | 2005-05-12 19:38:47 -0400 | [diff] [blame] | 2317 | void __iomem *ioaddr = np->mmio_addr; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2318 | u32 support; |
| 2319 | u8 cfg3, cfg5; |
| 2320 | |
| 2321 | support = ((rtl_chip_info[np->chipset].flags & HasLWake) |
| 2322 | ? (WAKE_PHY | WAKE_MAGIC |
| 2323 | | WAKE_UCAST | WAKE_MCAST | WAKE_BCAST) |
| 2324 | : 0); |
| 2325 | if (wol->wolopts & ~support) |
| 2326 | return -EINVAL; |
| 2327 | |
| 2328 | spin_lock_irq(&np->lock); |
| 2329 | cfg3 = RTL_R8 (Config3) & ~(Cfg3_LinkUp | Cfg3_Magic); |
| 2330 | if (wol->wolopts & WAKE_PHY) |
| 2331 | cfg3 |= Cfg3_LinkUp; |
| 2332 | if (wol->wolopts & WAKE_MAGIC) |
| 2333 | cfg3 |= Cfg3_Magic; |
| 2334 | RTL_W8 (Cfg9346, Cfg9346_Unlock); |
| 2335 | RTL_W8 (Config3, cfg3); |
| 2336 | RTL_W8 (Cfg9346, Cfg9346_Lock); |
| 2337 | |
| 2338 | cfg5 = RTL_R8 (Config5) & ~(Cfg5_UWF | Cfg5_MWF | Cfg5_BWF); |
| 2339 | /* (KON)FIXME: These are untested. We may have to set the |
| 2340 | CRC0, Wakeup0 and LSBCRC0 registers too, but I have no |
| 2341 | documentation. */ |
| 2342 | if (wol->wolopts & WAKE_UCAST) |
| 2343 | cfg5 |= Cfg5_UWF; |
| 2344 | if (wol->wolopts & WAKE_MCAST) |
| 2345 | cfg5 |= Cfg5_MWF; |
| 2346 | if (wol->wolopts & WAKE_BCAST) |
| 2347 | cfg5 |= Cfg5_BWF; |
| 2348 | RTL_W8 (Config5, cfg5); /* need not unlock via Cfg9346 */ |
| 2349 | spin_unlock_irq(&np->lock); |
| 2350 | |
| 2351 | return 0; |
| 2352 | } |
| 2353 | |
| 2354 | static void rtl8139_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info) |
| 2355 | { |
| 2356 | struct rtl8139_private *np = netdev_priv(dev); |
| 2357 | strcpy(info->driver, DRV_NAME); |
| 2358 | strcpy(info->version, DRV_VERSION); |
| 2359 | strcpy(info->bus_info, pci_name(np->pci_dev)); |
| 2360 | info->regdump_len = np->regs_len; |
| 2361 | } |
| 2362 | |
| 2363 | static int rtl8139_get_settings(struct net_device *dev, struct ethtool_cmd *cmd) |
| 2364 | { |
| 2365 | struct rtl8139_private *np = netdev_priv(dev); |
| 2366 | spin_lock_irq(&np->lock); |
| 2367 | mii_ethtool_gset(&np->mii, cmd); |
| 2368 | spin_unlock_irq(&np->lock); |
| 2369 | return 0; |
| 2370 | } |
| 2371 | |
| 2372 | static int rtl8139_set_settings(struct net_device *dev, struct ethtool_cmd *cmd) |
| 2373 | { |
| 2374 | struct rtl8139_private *np = netdev_priv(dev); |
| 2375 | int rc; |
| 2376 | spin_lock_irq(&np->lock); |
| 2377 | rc = mii_ethtool_sset(&np->mii, cmd); |
| 2378 | spin_unlock_irq(&np->lock); |
| 2379 | return rc; |
| 2380 | } |
| 2381 | |
| 2382 | static int rtl8139_nway_reset(struct net_device *dev) |
| 2383 | { |
| 2384 | struct rtl8139_private *np = netdev_priv(dev); |
| 2385 | return mii_nway_restart(&np->mii); |
| 2386 | } |
| 2387 | |
| 2388 | static u32 rtl8139_get_link(struct net_device *dev) |
| 2389 | { |
| 2390 | struct rtl8139_private *np = netdev_priv(dev); |
| 2391 | return mii_link_ok(&np->mii); |
| 2392 | } |
| 2393 | |
| 2394 | static u32 rtl8139_get_msglevel(struct net_device *dev) |
| 2395 | { |
| 2396 | struct rtl8139_private *np = netdev_priv(dev); |
| 2397 | return np->msg_enable; |
| 2398 | } |
| 2399 | |
| 2400 | static void rtl8139_set_msglevel(struct net_device *dev, u32 datum) |
| 2401 | { |
| 2402 | struct rtl8139_private *np = netdev_priv(dev); |
| 2403 | np->msg_enable = datum; |
| 2404 | } |
| 2405 | |
| 2406 | /* TODO: we are too slack to do reg dumping for pio, for now */ |
| 2407 | #ifdef CONFIG_8139TOO_PIO |
| 2408 | #define rtl8139_get_regs_len NULL |
| 2409 | #define rtl8139_get_regs NULL |
| 2410 | #else |
| 2411 | static int rtl8139_get_regs_len(struct net_device *dev) |
| 2412 | { |
| 2413 | struct rtl8139_private *np = netdev_priv(dev); |
| 2414 | return np->regs_len; |
| 2415 | } |
| 2416 | |
| 2417 | static void rtl8139_get_regs(struct net_device *dev, struct ethtool_regs *regs, void *regbuf) |
| 2418 | { |
| 2419 | struct rtl8139_private *np = netdev_priv(dev); |
| 2420 | |
| 2421 | regs->version = RTL_REGS_VER; |
| 2422 | |
| 2423 | spin_lock_irq(&np->lock); |
| 2424 | memcpy_fromio(regbuf, np->mmio_addr, regs->len); |
| 2425 | spin_unlock_irq(&np->lock); |
| 2426 | } |
| 2427 | #endif /* CONFIG_8139TOO_MMIO */ |
| 2428 | |
| 2429 | static int rtl8139_get_stats_count(struct net_device *dev) |
| 2430 | { |
| 2431 | return RTL_NUM_STATS; |
| 2432 | } |
| 2433 | |
| 2434 | static void rtl8139_get_ethtool_stats(struct net_device *dev, struct ethtool_stats *stats, u64 *data) |
| 2435 | { |
| 2436 | struct rtl8139_private *np = netdev_priv(dev); |
| 2437 | |
| 2438 | data[0] = np->xstats.early_rx; |
| 2439 | data[1] = np->xstats.tx_buf_mapped; |
| 2440 | data[2] = np->xstats.tx_timeouts; |
| 2441 | data[3] = np->xstats.rx_lost_in_ring; |
| 2442 | } |
| 2443 | |
| 2444 | static void rtl8139_get_strings(struct net_device *dev, u32 stringset, u8 *data) |
| 2445 | { |
| 2446 | memcpy(data, ethtool_stats_keys, sizeof(ethtool_stats_keys)); |
| 2447 | } |
| 2448 | |
Jeff Garzik | 7282d49 | 2006-09-13 14:30:00 -0400 | [diff] [blame] | 2449 | static const struct ethtool_ops rtl8139_ethtool_ops = { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2450 | .get_drvinfo = rtl8139_get_drvinfo, |
| 2451 | .get_settings = rtl8139_get_settings, |
| 2452 | .set_settings = rtl8139_set_settings, |
| 2453 | .get_regs_len = rtl8139_get_regs_len, |
| 2454 | .get_regs = rtl8139_get_regs, |
| 2455 | .nway_reset = rtl8139_nway_reset, |
| 2456 | .get_link = rtl8139_get_link, |
| 2457 | .get_msglevel = rtl8139_get_msglevel, |
| 2458 | .set_msglevel = rtl8139_set_msglevel, |
| 2459 | .get_wol = rtl8139_get_wol, |
| 2460 | .set_wol = rtl8139_set_wol, |
| 2461 | .get_strings = rtl8139_get_strings, |
| 2462 | .get_stats_count = rtl8139_get_stats_count, |
| 2463 | .get_ethtool_stats = rtl8139_get_ethtool_stats, |
John W. Linville | 62a720b | 2005-09-12 10:48:55 -0400 | [diff] [blame] | 2464 | .get_perm_addr = ethtool_op_get_perm_addr, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2465 | }; |
| 2466 | |
| 2467 | static int netdev_ioctl(struct net_device *dev, struct ifreq *rq, int cmd) |
| 2468 | { |
| 2469 | struct rtl8139_private *np = netdev_priv(dev); |
| 2470 | int rc; |
| 2471 | |
| 2472 | if (!netif_running(dev)) |
| 2473 | return -EINVAL; |
| 2474 | |
| 2475 | spin_lock_irq(&np->lock); |
| 2476 | rc = generic_mii_ioctl(&np->mii, if_mii(rq), cmd, NULL); |
| 2477 | spin_unlock_irq(&np->lock); |
| 2478 | |
| 2479 | return rc; |
| 2480 | } |
| 2481 | |
| 2482 | |
| 2483 | static struct net_device_stats *rtl8139_get_stats (struct net_device *dev) |
| 2484 | { |
| 2485 | struct rtl8139_private *tp = netdev_priv(dev); |
Pekka Enberg | 22f714b | 2005-05-12 19:38:47 -0400 | [diff] [blame] | 2486 | void __iomem *ioaddr = tp->mmio_addr; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2487 | unsigned long flags; |
| 2488 | |
| 2489 | if (netif_running(dev)) { |
| 2490 | spin_lock_irqsave (&tp->lock, flags); |
| 2491 | tp->stats.rx_missed_errors += RTL_R32 (RxMissed); |
| 2492 | RTL_W32 (RxMissed, 0); |
| 2493 | spin_unlock_irqrestore (&tp->lock, flags); |
| 2494 | } |
| 2495 | |
| 2496 | return &tp->stats; |
| 2497 | } |
| 2498 | |
| 2499 | /* Set or clear the multicast filter for this adaptor. |
| 2500 | This routine is not state sensitive and need not be SMP locked. */ |
| 2501 | |
| 2502 | static void __set_rx_mode (struct net_device *dev) |
| 2503 | { |
| 2504 | struct rtl8139_private *tp = netdev_priv(dev); |
Pekka Enberg | 22f714b | 2005-05-12 19:38:47 -0400 | [diff] [blame] | 2505 | void __iomem *ioaddr = tp->mmio_addr; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2506 | u32 mc_filter[2]; /* Multicast hash filter */ |
| 2507 | int i, rx_mode; |
| 2508 | u32 tmp; |
| 2509 | |
| 2510 | DPRINTK ("%s: rtl8139_set_rx_mode(%4.4x) done -- Rx config %8.8lx.\n", |
| 2511 | dev->name, dev->flags, RTL_R32 (RxConfig)); |
| 2512 | |
| 2513 | /* Note: do not reorder, GCC is clever about common statements. */ |
| 2514 | if (dev->flags & IFF_PROMISC) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2515 | rx_mode = |
| 2516 | AcceptBroadcast | AcceptMulticast | AcceptMyPhys | |
| 2517 | AcceptAllPhys; |
| 2518 | mc_filter[1] = mc_filter[0] = 0xffffffff; |
| 2519 | } else if ((dev->mc_count > multicast_filter_limit) |
| 2520 | || (dev->flags & IFF_ALLMULTI)) { |
| 2521 | /* Too many to filter perfectly -- accept all multicasts. */ |
| 2522 | rx_mode = AcceptBroadcast | AcceptMulticast | AcceptMyPhys; |
| 2523 | mc_filter[1] = mc_filter[0] = 0xffffffff; |
| 2524 | } else { |
| 2525 | struct dev_mc_list *mclist; |
| 2526 | rx_mode = AcceptBroadcast | AcceptMyPhys; |
| 2527 | mc_filter[1] = mc_filter[0] = 0; |
| 2528 | for (i = 0, mclist = dev->mc_list; mclist && i < dev->mc_count; |
| 2529 | i++, mclist = mclist->next) { |
| 2530 | int bit_nr = ether_crc(ETH_ALEN, mclist->dmi_addr) >> 26; |
| 2531 | |
| 2532 | mc_filter[bit_nr >> 5] |= 1 << (bit_nr & 31); |
| 2533 | rx_mode |= AcceptMulticast; |
| 2534 | } |
| 2535 | } |
| 2536 | |
| 2537 | /* We can safely update without stopping the chip. */ |
| 2538 | tmp = rtl8139_rx_config | rx_mode; |
| 2539 | if (tp->rx_config != tmp) { |
| 2540 | RTL_W32_F (RxConfig, tmp); |
| 2541 | tp->rx_config = tmp; |
| 2542 | } |
| 2543 | RTL_W32_F (MAR0 + 0, mc_filter[0]); |
| 2544 | RTL_W32_F (MAR0 + 4, mc_filter[1]); |
| 2545 | } |
| 2546 | |
| 2547 | static void rtl8139_set_rx_mode (struct net_device *dev) |
| 2548 | { |
| 2549 | unsigned long flags; |
| 2550 | struct rtl8139_private *tp = netdev_priv(dev); |
| 2551 | |
| 2552 | spin_lock_irqsave (&tp->lock, flags); |
| 2553 | __set_rx_mode(dev); |
| 2554 | spin_unlock_irqrestore (&tp->lock, flags); |
| 2555 | } |
| 2556 | |
| 2557 | #ifdef CONFIG_PM |
| 2558 | |
| 2559 | static int rtl8139_suspend (struct pci_dev *pdev, pm_message_t state) |
| 2560 | { |
| 2561 | struct net_device *dev = pci_get_drvdata (pdev); |
| 2562 | struct rtl8139_private *tp = netdev_priv(dev); |
Pekka Enberg | 22f714b | 2005-05-12 19:38:47 -0400 | [diff] [blame] | 2563 | void __iomem *ioaddr = tp->mmio_addr; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2564 | unsigned long flags; |
| 2565 | |
| 2566 | pci_save_state (pdev); |
| 2567 | |
| 2568 | if (!netif_running (dev)) |
| 2569 | return 0; |
| 2570 | |
| 2571 | netif_device_detach (dev); |
| 2572 | |
| 2573 | spin_lock_irqsave (&tp->lock, flags); |
| 2574 | |
| 2575 | /* Disable interrupts, stop Tx and Rx. */ |
| 2576 | RTL_W16 (IntrMask, 0); |
| 2577 | RTL_W8 (ChipCmd, 0); |
| 2578 | |
| 2579 | /* Update the error counts. */ |
| 2580 | tp->stats.rx_missed_errors += RTL_R32 (RxMissed); |
| 2581 | RTL_W32 (RxMissed, 0); |
| 2582 | |
| 2583 | spin_unlock_irqrestore (&tp->lock, flags); |
| 2584 | |
| 2585 | pci_set_power_state (pdev, PCI_D3hot); |
| 2586 | |
| 2587 | return 0; |
| 2588 | } |
| 2589 | |
| 2590 | |
| 2591 | static int rtl8139_resume (struct pci_dev *pdev) |
| 2592 | { |
| 2593 | struct net_device *dev = pci_get_drvdata (pdev); |
| 2594 | |
| 2595 | pci_restore_state (pdev); |
| 2596 | if (!netif_running (dev)) |
| 2597 | return 0; |
| 2598 | pci_set_power_state (pdev, PCI_D0); |
| 2599 | rtl8139_init_ring (dev); |
| 2600 | rtl8139_hw_start (dev); |
| 2601 | netif_device_attach (dev); |
| 2602 | return 0; |
| 2603 | } |
| 2604 | |
| 2605 | #endif /* CONFIG_PM */ |
| 2606 | |
| 2607 | |
| 2608 | static struct pci_driver rtl8139_pci_driver = { |
| 2609 | .name = DRV_NAME, |
| 2610 | .id_table = rtl8139_pci_tbl, |
| 2611 | .probe = rtl8139_init_one, |
| 2612 | .remove = __devexit_p(rtl8139_remove_one), |
| 2613 | #ifdef CONFIG_PM |
| 2614 | .suspend = rtl8139_suspend, |
| 2615 | .resume = rtl8139_resume, |
| 2616 | #endif /* CONFIG_PM */ |
| 2617 | }; |
| 2618 | |
| 2619 | |
| 2620 | static int __init rtl8139_init_module (void) |
| 2621 | { |
| 2622 | /* when we're a module, we always print a version message, |
| 2623 | * even if no 8139 board is found. |
| 2624 | */ |
| 2625 | #ifdef MODULE |
| 2626 | printk (KERN_INFO RTL8139_DRIVER_NAME "\n"); |
| 2627 | #endif |
| 2628 | |
Jeff Garzik | 2991762 | 2006-08-19 17:48:59 -0400 | [diff] [blame] | 2629 | return pci_register_driver(&rtl8139_pci_driver); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2630 | } |
| 2631 | |
| 2632 | |
| 2633 | static void __exit rtl8139_cleanup_module (void) |
| 2634 | { |
| 2635 | pci_unregister_driver (&rtl8139_pci_driver); |
| 2636 | } |
| 2637 | |
| 2638 | |
| 2639 | module_init(rtl8139_init_module); |
| 2640 | module_exit(rtl8139_cleanup_module); |