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 | |
Jan Engelhardt | 96de0e2 | 2007-10-19 23:21:04 +0200 | [diff] [blame] | 76 | Tobias Ringström - Rx interrupt status checking suggestion |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 101 | #include <linux/netdevice.h> |
| 102 | #include <linux/etherdevice.h> |
| 103 | #include <linux/rtnetlink.h> |
| 104 | #include <linux/delay.h> |
| 105 | #include <linux/ethtool.h> |
| 106 | #include <linux/mii.h> |
| 107 | #include <linux/completion.h> |
| 108 | #include <linux/crc32.h> |
Márton Németh | a9879c4 | 2008-06-15 09:52:30 +0200 | [diff] [blame] | 109 | #include <linux/io.h> |
| 110 | #include <linux/uaccess.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 111 | #include <asm/irq.h> |
| 112 | |
| 113 | #define RTL8139_DRIVER_NAME DRV_NAME " Fast Ethernet driver " DRV_VERSION |
| 114 | #define PFX DRV_NAME ": " |
| 115 | |
| 116 | /* Default Message level */ |
| 117 | #define RTL8139_DEF_MSG_ENABLE (NETIF_MSG_DRV | \ |
| 118 | NETIF_MSG_PROBE | \ |
| 119 | NETIF_MSG_LINK) |
| 120 | |
| 121 | |
Olaf Hering | 44456d3 | 2005-07-27 11:45:17 -0700 | [diff] [blame] | 122 | /* define to 1, 2 or 3 to enable copious debugging info */ |
| 123 | #define RTL8139_DEBUG 0 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 124 | |
| 125 | /* define to 1 to disable lightweight runtime debugging checks */ |
| 126 | #undef RTL8139_NDEBUG |
| 127 | |
| 128 | |
Olaf Hering | 44456d3 | 2005-07-27 11:45:17 -0700 | [diff] [blame] | 129 | #if RTL8139_DEBUG |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 130 | /* note: prints function name for you */ |
Márton Németh | a9879c4 | 2008-06-15 09:52:30 +0200 | [diff] [blame] | 131 | # define DPRINTK(fmt, args...) printk(KERN_DEBUG "%s: " fmt, __func__ , ## args) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 132 | #else |
| 133 | # define DPRINTK(fmt, args...) |
| 134 | #endif |
| 135 | |
| 136 | #ifdef RTL8139_NDEBUG |
| 137 | # define assert(expr) do {} while (0) |
| 138 | #else |
| 139 | # define assert(expr) \ |
| 140 | if(unlikely(!(expr))) { \ |
| 141 | printk(KERN_ERR "Assertion failed! %s,%s,%s,line=%d\n", \ |
Márton Németh | a9879c4 | 2008-06-15 09:52:30 +0200 | [diff] [blame] | 142 | #expr, __FILE__, __func__, __LINE__); \ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 143 | } |
| 144 | #endif |
| 145 | |
| 146 | |
| 147 | /* A few user-configurable values. */ |
| 148 | /* media options */ |
| 149 | #define MAX_UNITS 8 |
| 150 | static int media[MAX_UNITS] = {-1, -1, -1, -1, -1, -1, -1, -1}; |
| 151 | static int full_duplex[MAX_UNITS] = {-1, -1, -1, -1, -1, -1, -1, -1}; |
| 152 | |
Dave Jones | eb58134 | 2008-07-15 19:54:53 -0400 | [diff] [blame] | 153 | /* Whether to use MMIO or PIO. Default to MMIO. */ |
| 154 | #ifdef CONFIG_8139TOO_PIO |
| 155 | static int use_io = 1; |
| 156 | #else |
| 157 | static int use_io = 0; |
| 158 | #endif |
| 159 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 160 | /* Maximum number of multicast addresses to filter (vs. Rx-all-multicast). |
| 161 | The RTL chips use a 64 element hash table based on the Ethernet CRC. */ |
| 162 | static int multicast_filter_limit = 32; |
| 163 | |
| 164 | /* bitmapped message enable number */ |
| 165 | static int debug = -1; |
| 166 | |
| 167 | /* |
Jeff Garzik | f3b197a | 2006-05-26 21:39:03 -0400 | [diff] [blame] | 168 | * Receive ring size |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 169 | * Warning: 64K ring has hardware issues and may lock up. |
| 170 | */ |
| 171 | #if defined(CONFIG_SH_DREAMCAST) |
Adrian McMenamin | 2192f39 | 2008-02-08 11:21:58 +0000 | [diff] [blame] | 172 | #define RX_BUF_IDX 0 /* 8K ring */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 173 | #else |
| 174 | #define RX_BUF_IDX 2 /* 32K ring */ |
| 175 | #endif |
| 176 | #define RX_BUF_LEN (8192 << RX_BUF_IDX) |
| 177 | #define RX_BUF_PAD 16 |
| 178 | #define RX_BUF_WRAP_PAD 2048 /* spare padding to handle lack of packet wrap */ |
| 179 | |
| 180 | #if RX_BUF_LEN == 65536 |
| 181 | #define RX_BUF_TOT_LEN RX_BUF_LEN |
| 182 | #else |
| 183 | #define RX_BUF_TOT_LEN (RX_BUF_LEN + RX_BUF_PAD + RX_BUF_WRAP_PAD) |
| 184 | #endif |
| 185 | |
| 186 | /* Number of Tx descriptor registers. */ |
| 187 | #define NUM_TX_DESC 4 |
| 188 | |
| 189 | /* max supported ethernet frame size -- must be at least (dev->mtu+14+4).*/ |
| 190 | #define MAX_ETH_FRAME_SIZE 1536 |
| 191 | |
| 192 | /* Size of the Tx bounce buffers -- must be at least (dev->mtu+14+4). */ |
| 193 | #define TX_BUF_SIZE MAX_ETH_FRAME_SIZE |
| 194 | #define TX_BUF_TOT_LEN (TX_BUF_SIZE * NUM_TX_DESC) |
| 195 | |
| 196 | /* PCI Tuning Parameters |
| 197 | Threshold is bytes transferred to chip before transmission starts. */ |
| 198 | #define TX_FIFO_THRESH 256 /* In bytes, rounded down to 32 byte units. */ |
| 199 | |
| 200 | /* The following settings are log_2(bytes)-4: 0 == 16 bytes .. 6==1024, 7==end of packet. */ |
| 201 | #define RX_FIFO_THRESH 7 /* Rx buffer level before first PCI xfer. */ |
| 202 | #define RX_DMA_BURST 7 /* Maximum PCI burst, '6' is 1024 */ |
| 203 | #define TX_DMA_BURST 6 /* Maximum PCI burst, '6' is 1024 */ |
| 204 | #define TX_RETRY 8 /* 0-15. retries = 16 + (TX_RETRY * 16) */ |
| 205 | |
| 206 | /* Operational parameters that usually are not changed. */ |
| 207 | /* Time in jiffies before concluding the transmitter is hung. */ |
| 208 | #define TX_TIMEOUT (6*HZ) |
| 209 | |
| 210 | |
| 211 | enum { |
| 212 | HAS_MII_XCVR = 0x010000, |
| 213 | HAS_CHIP_XCVR = 0x020000, |
| 214 | HAS_LNK_CHNG = 0x040000, |
| 215 | }; |
| 216 | |
| 217 | #define RTL_NUM_STATS 4 /* number of ETHTOOL_GSTATS u64's */ |
| 218 | #define RTL_REGS_VER 1 /* version of reg. data in ETHTOOL_GREGS */ |
| 219 | #define RTL_MIN_IO_SIZE 0x80 |
| 220 | #define RTL8139B_IO_SIZE 256 |
| 221 | |
| 222 | #define RTL8129_CAPS HAS_MII_XCVR |
Márton Németh | a9879c4 | 2008-06-15 09:52:30 +0200 | [diff] [blame] | 223 | #define RTL8139_CAPS (HAS_CHIP_XCVR|HAS_LNK_CHNG) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 224 | |
| 225 | typedef enum { |
| 226 | RTL8139 = 0, |
| 227 | RTL8129, |
| 228 | } board_t; |
| 229 | |
| 230 | |
| 231 | /* indexed by board_t, above */ |
Arjan van de Ven | f71e130 | 2006-03-03 21:33:57 -0500 | [diff] [blame] | 232 | static const struct { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 233 | const char *name; |
| 234 | u32 hw_flags; |
| 235 | } board_info[] __devinitdata = { |
| 236 | { "RealTek RTL8139", RTL8139_CAPS }, |
| 237 | { "RealTek RTL8129", RTL8129_CAPS }, |
| 238 | }; |
| 239 | |
| 240 | |
| 241 | static struct pci_device_id rtl8139_pci_tbl[] = { |
| 242 | {0x10ec, 0x8139, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 }, |
| 243 | {0x10ec, 0x8138, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 }, |
| 244 | {0x1113, 0x1211, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 }, |
| 245 | {0x1500, 0x1360, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 }, |
| 246 | {0x4033, 0x1360, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 }, |
| 247 | {0x1186, 0x1300, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 }, |
| 248 | {0x1186, 0x1340, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 }, |
| 249 | {0x13d1, 0xab06, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 }, |
| 250 | {0x1259, 0xa117, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 }, |
| 251 | {0x1259, 0xa11e, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 }, |
| 252 | {0x14ea, 0xab06, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 }, |
| 253 | {0x14ea, 0xab07, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 }, |
| 254 | {0x11db, 0x1234, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 }, |
| 255 | {0x1432, 0x9130, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 }, |
| 256 | {0x02ac, 0x1012, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 }, |
| 257 | {0x018a, 0x0106, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 }, |
| 258 | {0x126c, 0x1211, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 }, |
| 259 | {0x1743, 0x8139, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 }, |
Jeff Garzik | f3b197a | 2006-05-26 21:39:03 -0400 | [diff] [blame] | 260 | {0x021b, 0x8139, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 }, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 261 | |
| 262 | #ifdef CONFIG_SH_SECUREEDGE5410 |
| 263 | /* Bogus 8139 silicon reports 8129 without external PROM :-( */ |
| 264 | {0x10ec, 0x8129, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 }, |
| 265 | #endif |
| 266 | #ifdef CONFIG_8139TOO_8129 |
| 267 | {0x10ec, 0x8129, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8129 }, |
| 268 | #endif |
| 269 | |
| 270 | /* some crazy cards report invalid vendor ids like |
| 271 | * 0x0001 here. The other ids are valid and constant, |
| 272 | * so we simply don't match on the main vendor id. |
| 273 | */ |
| 274 | {PCI_ANY_ID, 0x8139, 0x10ec, 0x8139, 0, 0, RTL8139 }, |
| 275 | {PCI_ANY_ID, 0x8139, 0x1186, 0x1300, 0, 0, RTL8139 }, |
| 276 | {PCI_ANY_ID, 0x8139, 0x13d1, 0xab06, 0, 0, RTL8139 }, |
| 277 | |
| 278 | {0,} |
| 279 | }; |
| 280 | MODULE_DEVICE_TABLE (pci, rtl8139_pci_tbl); |
| 281 | |
| 282 | static struct { |
| 283 | const char str[ETH_GSTRING_LEN]; |
| 284 | } ethtool_stats_keys[] = { |
| 285 | { "early_rx" }, |
| 286 | { "tx_buf_mapped" }, |
| 287 | { "tx_timeouts" }, |
| 288 | { "rx_lost_in_ring" }, |
| 289 | }; |
| 290 | |
| 291 | /* The rest of these values should never change. */ |
| 292 | |
| 293 | /* Symbolic offsets to registers. */ |
| 294 | enum RTL8139_registers { |
Jeff Garzik | 28006c6 | 2007-09-15 12:36:46 -0700 | [diff] [blame] | 295 | MAC0 = 0, /* Ethernet hardware address. */ |
| 296 | MAR0 = 8, /* Multicast filter. */ |
| 297 | TxStatus0 = 0x10, /* Transmit status (Four 32bit registers). */ |
| 298 | TxAddr0 = 0x20, /* Tx descriptors (also four 32bit). */ |
| 299 | RxBuf = 0x30, |
| 300 | ChipCmd = 0x37, |
| 301 | RxBufPtr = 0x38, |
| 302 | RxBufAddr = 0x3A, |
| 303 | IntrMask = 0x3C, |
| 304 | IntrStatus = 0x3E, |
| 305 | TxConfig = 0x40, |
| 306 | RxConfig = 0x44, |
| 307 | Timer = 0x48, /* A general-purpose counter. */ |
| 308 | RxMissed = 0x4C, /* 24 bits valid, write clears. */ |
| 309 | Cfg9346 = 0x50, |
| 310 | Config0 = 0x51, |
| 311 | Config1 = 0x52, |
| 312 | FlashReg = 0x54, |
| 313 | MediaStatus = 0x58, |
| 314 | Config3 = 0x59, |
| 315 | Config4 = 0x5A, /* absent on RTL-8139A */ |
| 316 | HltClk = 0x5B, |
| 317 | MultiIntr = 0x5C, |
| 318 | TxSummary = 0x60, |
| 319 | BasicModeCtrl = 0x62, |
| 320 | BasicModeStatus = 0x64, |
| 321 | NWayAdvert = 0x66, |
| 322 | NWayLPAR = 0x68, |
| 323 | NWayExpansion = 0x6A, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 324 | /* Undocumented registers, but required for proper operation. */ |
Jeff Garzik | 28006c6 | 2007-09-15 12:36:46 -0700 | [diff] [blame] | 325 | FIFOTMS = 0x70, /* FIFO Control and test. */ |
| 326 | CSCR = 0x74, /* Chip Status and Configuration Register. */ |
| 327 | PARA78 = 0x78, |
| 328 | PARA7c = 0x7c, /* Magic transceiver parameter register. */ |
| 329 | Config5 = 0xD8, /* absent on RTL-8139A */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 330 | }; |
| 331 | |
| 332 | enum ClearBitMasks { |
Jeff Garzik | 28006c6 | 2007-09-15 12:36:46 -0700 | [diff] [blame] | 333 | MultiIntrClear = 0xF000, |
| 334 | ChipCmdClear = 0xE2, |
| 335 | Config1Clear = (1<<7)|(1<<6)|(1<<3)|(1<<2)|(1<<1), |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 336 | }; |
| 337 | |
| 338 | enum ChipCmdBits { |
Jeff Garzik | 28006c6 | 2007-09-15 12:36:46 -0700 | [diff] [blame] | 339 | CmdReset = 0x10, |
| 340 | CmdRxEnb = 0x08, |
| 341 | CmdTxEnb = 0x04, |
| 342 | RxBufEmpty = 0x01, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 343 | }; |
| 344 | |
| 345 | /* Interrupt register bits, using my own meaningful names. */ |
| 346 | enum IntrStatusBits { |
Jeff Garzik | 28006c6 | 2007-09-15 12:36:46 -0700 | [diff] [blame] | 347 | PCIErr = 0x8000, |
| 348 | PCSTimeout = 0x4000, |
| 349 | RxFIFOOver = 0x40, |
| 350 | RxUnderrun = 0x20, |
| 351 | RxOverflow = 0x10, |
| 352 | TxErr = 0x08, |
| 353 | TxOK = 0x04, |
| 354 | RxErr = 0x02, |
| 355 | RxOK = 0x01, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 356 | |
Jeff Garzik | 28006c6 | 2007-09-15 12:36:46 -0700 | [diff] [blame] | 357 | RxAckBits = RxFIFOOver | RxOverflow | RxOK, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 358 | }; |
| 359 | |
| 360 | enum TxStatusBits { |
Jeff Garzik | 28006c6 | 2007-09-15 12:36:46 -0700 | [diff] [blame] | 361 | TxHostOwns = 0x2000, |
| 362 | TxUnderrun = 0x4000, |
| 363 | TxStatOK = 0x8000, |
| 364 | TxOutOfWindow = 0x20000000, |
| 365 | TxAborted = 0x40000000, |
| 366 | TxCarrierLost = 0x80000000, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 367 | }; |
| 368 | enum RxStatusBits { |
Jeff Garzik | 28006c6 | 2007-09-15 12:36:46 -0700 | [diff] [blame] | 369 | RxMulticast = 0x8000, |
| 370 | RxPhysical = 0x4000, |
| 371 | RxBroadcast = 0x2000, |
| 372 | RxBadSymbol = 0x0020, |
| 373 | RxRunt = 0x0010, |
| 374 | RxTooLong = 0x0008, |
| 375 | RxCRCErr = 0x0004, |
| 376 | RxBadAlign = 0x0002, |
| 377 | RxStatusOK = 0x0001, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 378 | }; |
| 379 | |
| 380 | /* Bits in RxConfig. */ |
| 381 | enum rx_mode_bits { |
Jeff Garzik | 28006c6 | 2007-09-15 12:36:46 -0700 | [diff] [blame] | 382 | AcceptErr = 0x20, |
| 383 | AcceptRunt = 0x10, |
| 384 | AcceptBroadcast = 0x08, |
| 385 | AcceptMulticast = 0x04, |
| 386 | AcceptMyPhys = 0x02, |
| 387 | AcceptAllPhys = 0x01, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 388 | }; |
| 389 | |
| 390 | /* Bits in TxConfig. */ |
| 391 | enum tx_config_bits { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 392 | /* Interframe Gap Time. Only TxIFG96 doesn't violate IEEE 802.3 */ |
Jeff Garzik | 28006c6 | 2007-09-15 12:36:46 -0700 | [diff] [blame] | 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) */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 398 | |
Jeff Garzik | 28006c6 | 2007-09-15 12:36:46 -0700 | [diff] [blame] | 399 | TxLoopBack = (1 << 18) | (1 << 17), /* enable loopback test mode */ |
| 400 | TxCRC = (1 << 16), /* DISABLE Tx pkt CRC append */ |
| 401 | TxClearAbt = (1 << 0), /* Clear abort (WO) */ |
| 402 | TxDMAShift = 8, /* DMA burst value (0-7) is shifted X many bits */ |
| 403 | TxRetryShift = 4, /* TXRR value (0-15) is shifted X many bits */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 404 | |
Jeff Garzik | 28006c6 | 2007-09-15 12:36:46 -0700 | [diff] [blame] | 405 | TxVersionMask = 0x7C800000, /* mask out version bits 30-26, 23 */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 406 | }; |
| 407 | |
| 408 | /* Bits in Config1 */ |
| 409 | enum Config1Bits { |
Jeff Garzik | 28006c6 | 2007-09-15 12:36:46 -0700 | [diff] [blame] | 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 */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 415 | Cfg1_Driver_Load = 0x20, |
Jeff Garzik | 28006c6 | 2007-09-15 12:36:46 -0700 | [diff] [blame] | 416 | Cfg1_LED0 = 0x40, |
| 417 | Cfg1_LED1 = 0x80, |
| 418 | SLEEP = (1 << 1), /* only on 8139, 8139A */ |
| 419 | PWRDN = (1 << 0), /* only on 8139, 8139A */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 420 | }; |
| 421 | |
| 422 | /* Bits in Config3 */ |
| 423 | enum Config3Bits { |
Jeff Garzik | 28006c6 | 2007-09-15 12:36:46 -0700 | [diff] [blame] | 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 */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 432 | }; |
| 433 | |
| 434 | /* Bits in Config4 */ |
| 435 | enum Config4Bits { |
Jeff Garzik | 28006c6 | 2007-09-15 12:36:46 -0700 | [diff] [blame] | 436 | LWPTN = (1 << 2), /* not on 8139, 8139A */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 437 | }; |
| 438 | |
| 439 | /* Bits in Config5 */ |
| 440 | enum Config5Bits { |
Jeff Garzik | 28006c6 | 2007-09-15 12:36:46 -0700 | [diff] [blame] | 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 */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 448 | }; |
| 449 | |
| 450 | enum RxConfigBits { |
| 451 | /* rx fifo threshold */ |
Jeff Garzik | 28006c6 | 2007-09-15 12:36:46 -0700 | [diff] [blame] | 452 | RxCfgFIFOShift = 13, |
| 453 | RxCfgFIFONone = (7 << RxCfgFIFOShift), |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 454 | |
| 455 | /* Max DMA burst */ |
Jeff Garzik | 28006c6 | 2007-09-15 12:36:46 -0700 | [diff] [blame] | 456 | RxCfgDMAShift = 8, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 457 | RxCfgDMAUnlimited = (7 << RxCfgDMAShift), |
| 458 | |
| 459 | /* rx ring buffer length */ |
Jeff Garzik | 28006c6 | 2007-09-15 12:36:46 -0700 | [diff] [blame] | 460 | RxCfgRcv8K = 0, |
| 461 | RxCfgRcv16K = (1 << 11), |
| 462 | RxCfgRcv32K = (1 << 12), |
| 463 | RxCfgRcv64K = (1 << 11) | (1 << 12), |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 464 | |
| 465 | /* Disable packet wrap at end of Rx buffer. (not possible with 64k) */ |
Jeff Garzik | 28006c6 | 2007-09-15 12:36:46 -0700 | [diff] [blame] | 466 | RxNoWrap = (1 << 7), |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 467 | }; |
| 468 | |
| 469 | /* Twister tuning parameters from RealTek. |
| 470 | Completely undocumented, but required to tune bad links on some boards. */ |
| 471 | enum CSCRBits { |
Jeff Garzik | 28006c6 | 2007-09-15 12:36:46 -0700 | [diff] [blame] | 472 | CSCR_LinkOKBit = 0x0400, |
| 473 | CSCR_LinkChangeBit = 0x0800, |
| 474 | CSCR_LinkStatusBits = 0x0f000, |
| 475 | CSCR_LinkDownOffCmd = 0x003c0, |
| 476 | CSCR_LinkDownCmd = 0x0f3c0, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 477 | }; |
| 478 | |
| 479 | enum Cfg9346Bits { |
Jeff Garzik | 28006c6 | 2007-09-15 12:36:46 -0700 | [diff] [blame] | 480 | Cfg9346_Lock = 0x00, |
| 481 | Cfg9346_Unlock = 0xC0, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 482 | }; |
| 483 | |
| 484 | typedef enum { |
Jeff Garzik | 28006c6 | 2007-09-15 12:36:46 -0700 | [diff] [blame] | 485 | CH_8139 = 0, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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 { |
Jeff Garzik | 28006c6 | 2007-09-15 12:36:46 -0700 | [diff] [blame] | 498 | HasHltClk = (1 << 0), |
| 499 | HasLWake = (1 << 1), |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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 { |
Jeff Garzik | 28006c6 | 2007-09-15 12:36:46 -0700 | [diff] [blame] | 572 | void __iomem *mmio_addr; |
| 573 | int drv_flags; |
| 574 | struct pci_dev *pci_dev; |
| 575 | u32 msg_enable; |
| 576 | struct napi_struct napi; |
| 577 | struct net_device *dev; |
Jeff Garzik | a15e038 | 2005-10-31 07:59:37 -0500 | [diff] [blame] | 578 | |
Jeff Garzik | 28006c6 | 2007-09-15 12:36:46 -0700 | [diff] [blame] | 579 | unsigned char *rx_ring; |
| 580 | unsigned int cur_rx; /* RX buf index of next pkt */ |
| 581 | dma_addr_t rx_ring_dma; |
Jeff Garzik | a15e038 | 2005-10-31 07:59:37 -0500 | [diff] [blame] | 582 | |
Jeff Garzik | 28006c6 | 2007-09-15 12:36:46 -0700 | [diff] [blame] | 583 | unsigned int tx_flag; |
| 584 | unsigned long cur_tx; |
| 585 | unsigned long dirty_tx; |
| 586 | unsigned char *tx_buf[NUM_TX_DESC]; /* Tx bounce buffers */ |
| 587 | unsigned char *tx_bufs; /* Tx bounce buffer region. */ |
| 588 | dma_addr_t tx_bufs_dma; |
| 589 | |
| 590 | signed char phys[4]; /* MII device addresses. */ |
| 591 | |
| 592 | /* Twister tune state. */ |
| 593 | char twistie, twist_row, twist_col; |
| 594 | |
| 595 | unsigned int watchdog_fired : 1; |
| 596 | unsigned int default_port : 4; /* Last dev->if_port value. */ |
| 597 | unsigned int have_thread : 1; |
| 598 | |
| 599 | spinlock_t lock; |
| 600 | spinlock_t rx_lock; |
| 601 | |
| 602 | chip_t chipset; |
| 603 | u32 rx_config; |
| 604 | struct rtl_extra_stats xstats; |
| 605 | |
| 606 | struct delayed_work thread; |
| 607 | |
| 608 | struct mii_if_info mii; |
| 609 | unsigned int regs_len; |
| 610 | unsigned long fifo_copy_timeout; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 611 | }; |
| 612 | |
| 613 | MODULE_AUTHOR ("Jeff Garzik <jgarzik@pobox.com>"); |
| 614 | MODULE_DESCRIPTION ("RealTek RTL-8139 Fast Ethernet driver"); |
| 615 | MODULE_LICENSE("GPL"); |
| 616 | MODULE_VERSION(DRV_VERSION); |
| 617 | |
Dave Jones | eb58134 | 2008-07-15 19:54:53 -0400 | [diff] [blame] | 618 | module_param(use_io, int, 0); |
| 619 | MODULE_PARM_DESC(use_io, "Force use of I/O access mode. 0=MMIO 1=PIO"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 620 | module_param(multicast_filter_limit, int, 0); |
| 621 | module_param_array(media, int, NULL, 0); |
| 622 | module_param_array(full_duplex, int, NULL, 0); |
| 623 | module_param(debug, int, 0); |
| 624 | MODULE_PARM_DESC (debug, "8139too bitmapped message enable number"); |
| 625 | MODULE_PARM_DESC (multicast_filter_limit, "8139too maximum number of filtered multicast addresses"); |
| 626 | MODULE_PARM_DESC (media, "8139too: Bits 4+9: force full duplex, bit 5: 100Mbps"); |
| 627 | MODULE_PARM_DESC (full_duplex, "8139too: Force full duplex for board(s) (1)"); |
| 628 | |
Pekka Enberg | 22f714b | 2005-05-12 19:38:47 -0400 | [diff] [blame] | 629 | static int read_eeprom (void __iomem *ioaddr, int location, int addr_len); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 630 | static int rtl8139_open (struct net_device *dev); |
| 631 | static int mdio_read (struct net_device *dev, int phy_id, int location); |
| 632 | static void mdio_write (struct net_device *dev, int phy_id, int location, |
| 633 | int val); |
Jeff Garzik | a15e038 | 2005-10-31 07:59:37 -0500 | [diff] [blame] | 634 | static void rtl8139_start_thread(struct rtl8139_private *tp); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 635 | static void rtl8139_tx_timeout (struct net_device *dev); |
| 636 | static void rtl8139_init_ring (struct net_device *dev); |
| 637 | static int rtl8139_start_xmit (struct sk_buff *skb, |
| 638 | struct net_device *dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 639 | #ifdef CONFIG_NET_POLL_CONTROLLER |
| 640 | static void rtl8139_poll_controller(struct net_device *dev); |
| 641 | #endif |
Stephen Hemminger | bea3348 | 2007-10-03 16:41:36 -0700 | [diff] [blame] | 642 | static int rtl8139_poll(struct napi_struct *napi, int budget); |
David Howells | 7d12e78 | 2006-10-05 14:55:46 +0100 | [diff] [blame] | 643 | static irqreturn_t rtl8139_interrupt (int irq, void *dev_instance); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 644 | static int rtl8139_close (struct net_device *dev); |
| 645 | static int netdev_ioctl (struct net_device *dev, struct ifreq *rq, int cmd); |
| 646 | static struct net_device_stats *rtl8139_get_stats (struct net_device *dev); |
| 647 | static void rtl8139_set_rx_mode (struct net_device *dev); |
| 648 | static void __set_rx_mode (struct net_device *dev); |
| 649 | static void rtl8139_hw_start (struct net_device *dev); |
David Howells | c402895 | 2006-11-22 14:57:56 +0000 | [diff] [blame] | 650 | static void rtl8139_thread (struct work_struct *work); |
| 651 | static void rtl8139_tx_timeout_task(struct work_struct *work); |
Jeff Garzik | 7282d49 | 2006-09-13 14:30:00 -0400 | [diff] [blame] | 652 | static const struct ethtool_ops rtl8139_ethtool_ops; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 653 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 654 | /* write MMIO register, with flush */ |
| 655 | /* Flush avoids rtl8139 bug w/ posted MMIO writes */ |
Pekka Enberg | 22f714b | 2005-05-12 19:38:47 -0400 | [diff] [blame] | 656 | #define RTL_W8_F(reg, val8) do { iowrite8 ((val8), ioaddr + (reg)); ioread8 (ioaddr + (reg)); } while (0) |
| 657 | #define RTL_W16_F(reg, val16) do { iowrite16 ((val16), ioaddr + (reg)); ioread16 (ioaddr + (reg)); } while (0) |
| 658 | #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] | 659 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 660 | /* write MMIO register */ |
Pekka Enberg | 22f714b | 2005-05-12 19:38:47 -0400 | [diff] [blame] | 661 | #define RTL_W8(reg, val8) iowrite8 ((val8), ioaddr + (reg)) |
| 662 | #define RTL_W16(reg, val16) iowrite16 ((val16), ioaddr + (reg)) |
| 663 | #define RTL_W32(reg, val32) iowrite32 ((val32), ioaddr + (reg)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 664 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 665 | /* read MMIO register */ |
Pekka Enberg | 22f714b | 2005-05-12 19:38:47 -0400 | [diff] [blame] | 666 | #define RTL_R8(reg) ioread8 (ioaddr + (reg)) |
| 667 | #define RTL_R16(reg) ioread16 (ioaddr + (reg)) |
| 668 | #define RTL_R32(reg) ((unsigned long) ioread32 (ioaddr + (reg))) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 669 | |
| 670 | |
| 671 | static const u16 rtl8139_intr_mask = |
| 672 | PCIErr | PCSTimeout | RxUnderrun | RxOverflow | RxFIFOOver | |
| 673 | TxErr | TxOK | RxErr | RxOK; |
| 674 | |
| 675 | static const u16 rtl8139_norx_intr_mask = |
| 676 | PCIErr | PCSTimeout | RxUnderrun | |
| 677 | TxErr | TxOK | RxErr ; |
| 678 | |
| 679 | #if RX_BUF_IDX == 0 |
| 680 | static const unsigned int rtl8139_rx_config = |
| 681 | RxCfgRcv8K | RxNoWrap | |
| 682 | (RX_FIFO_THRESH << RxCfgFIFOShift) | |
| 683 | (RX_DMA_BURST << RxCfgDMAShift); |
| 684 | #elif RX_BUF_IDX == 1 |
| 685 | static const unsigned int rtl8139_rx_config = |
| 686 | RxCfgRcv16K | RxNoWrap | |
| 687 | (RX_FIFO_THRESH << RxCfgFIFOShift) | |
| 688 | (RX_DMA_BURST << RxCfgDMAShift); |
| 689 | #elif RX_BUF_IDX == 2 |
| 690 | static const unsigned int rtl8139_rx_config = |
| 691 | RxCfgRcv32K | RxNoWrap | |
| 692 | (RX_FIFO_THRESH << RxCfgFIFOShift) | |
| 693 | (RX_DMA_BURST << RxCfgDMAShift); |
| 694 | #elif RX_BUF_IDX == 3 |
| 695 | static const unsigned int rtl8139_rx_config = |
| 696 | RxCfgRcv64K | |
| 697 | (RX_FIFO_THRESH << RxCfgFIFOShift) | |
| 698 | (RX_DMA_BURST << RxCfgDMAShift); |
| 699 | #else |
| 700 | #error "Invalid configuration for 8139_RXBUF_IDX" |
| 701 | #endif |
| 702 | |
| 703 | static const unsigned int rtl8139_tx_config = |
| 704 | TxIFG96 | (TX_DMA_BURST << TxDMAShift) | (TX_RETRY << TxRetryShift); |
| 705 | |
| 706 | static void __rtl8139_cleanup_dev (struct net_device *dev) |
| 707 | { |
| 708 | struct rtl8139_private *tp = netdev_priv(dev); |
| 709 | struct pci_dev *pdev; |
| 710 | |
| 711 | assert (dev != NULL); |
| 712 | assert (tp->pci_dev != NULL); |
| 713 | pdev = tp->pci_dev; |
| 714 | |
Pekka Enberg | 22f714b | 2005-05-12 19:38:47 -0400 | [diff] [blame] | 715 | if (tp->mmio_addr) |
| 716 | pci_iounmap (pdev, tp->mmio_addr); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 717 | |
| 718 | /* it's ok to call this even if we have no regions to free */ |
| 719 | pci_release_regions (pdev); |
| 720 | |
| 721 | free_netdev(dev); |
| 722 | pci_set_drvdata (pdev, NULL); |
| 723 | } |
| 724 | |
| 725 | |
Pekka Enberg | 22f714b | 2005-05-12 19:38:47 -0400 | [diff] [blame] | 726 | static void rtl8139_chip_reset (void __iomem *ioaddr) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 727 | { |
| 728 | int i; |
| 729 | |
| 730 | /* Soft reset the chip. */ |
| 731 | RTL_W8 (ChipCmd, CmdReset); |
| 732 | |
| 733 | /* Check that the chip has finished the reset. */ |
| 734 | for (i = 1000; i > 0; i--) { |
| 735 | barrier(); |
| 736 | if ((RTL_R8 (ChipCmd) & CmdReset) == 0) |
| 737 | break; |
| 738 | udelay (10); |
| 739 | } |
| 740 | } |
| 741 | |
| 742 | |
| 743 | static int __devinit rtl8139_init_board (struct pci_dev *pdev, |
| 744 | struct net_device **dev_out) |
| 745 | { |
Pekka Enberg | 22f714b | 2005-05-12 19:38:47 -0400 | [diff] [blame] | 746 | void __iomem *ioaddr; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 747 | struct net_device *dev; |
| 748 | struct rtl8139_private *tp; |
| 749 | u8 tmp8; |
| 750 | int rc, disable_dev_on_err = 0; |
| 751 | unsigned int i; |
| 752 | unsigned long pio_start, pio_end, pio_flags, pio_len; |
| 753 | unsigned long mmio_start, mmio_end, mmio_flags, mmio_len; |
| 754 | u32 version; |
| 755 | |
| 756 | assert (pdev != NULL); |
| 757 | |
| 758 | *dev_out = NULL; |
| 759 | |
| 760 | /* dev and priv zeroed in alloc_etherdev */ |
| 761 | dev = alloc_etherdev (sizeof (*tp)); |
| 762 | if (dev == NULL) { |
Jeff Garzik | 9b91cf9 | 2006-06-27 11:39:50 -0400 | [diff] [blame] | 763 | dev_err(&pdev->dev, "Unable to alloc new net device\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 764 | return -ENOMEM; |
| 765 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 766 | SET_NETDEV_DEV(dev, &pdev->dev); |
| 767 | |
| 768 | tp = netdev_priv(dev); |
| 769 | tp->pci_dev = pdev; |
| 770 | |
| 771 | /* enable device (incl. PCI PM wakeup and hotplug setup) */ |
| 772 | rc = pci_enable_device (pdev); |
| 773 | if (rc) |
| 774 | goto err_out; |
| 775 | |
| 776 | pio_start = pci_resource_start (pdev, 0); |
| 777 | pio_end = pci_resource_end (pdev, 0); |
| 778 | pio_flags = pci_resource_flags (pdev, 0); |
| 779 | pio_len = pci_resource_len (pdev, 0); |
| 780 | |
| 781 | mmio_start = pci_resource_start (pdev, 1); |
| 782 | mmio_end = pci_resource_end (pdev, 1); |
| 783 | mmio_flags = pci_resource_flags (pdev, 1); |
| 784 | mmio_len = pci_resource_len (pdev, 1); |
| 785 | |
| 786 | /* set this immediately, we need to know before |
| 787 | * we talk to the chip directly */ |
| 788 | DPRINTK("PIO region size == 0x%02X\n", pio_len); |
| 789 | DPRINTK("MMIO region size == 0x%02lX\n", mmio_len); |
| 790 | |
Dave Jones | 1a4dc68 | 2008-07-15 19:54:52 -0400 | [diff] [blame] | 791 | retry: |
Dave Jones | eb58134 | 2008-07-15 19:54:53 -0400 | [diff] [blame] | 792 | if (use_io) { |
| 793 | /* make sure PCI base addr 0 is PIO */ |
| 794 | if (!(pio_flags & IORESOURCE_IO)) { |
| 795 | dev_err(&pdev->dev, "region #0 not a PIO resource, aborting\n"); |
| 796 | rc = -ENODEV; |
| 797 | goto err_out; |
| 798 | } |
| 799 | /* check for weird/broken PCI region reporting */ |
| 800 | if (pio_len < RTL_MIN_IO_SIZE) { |
| 801 | dev_err(&pdev->dev, "Invalid PCI I/O region size(s), aborting\n"); |
| 802 | rc = -ENODEV; |
| 803 | goto err_out; |
| 804 | } |
| 805 | } else { |
| 806 | /* make sure PCI base addr 1 is MMIO */ |
| 807 | if (!(mmio_flags & IORESOURCE_MEM)) { |
| 808 | dev_err(&pdev->dev, "region #1 not an MMIO resource, aborting\n"); |
| 809 | rc = -ENODEV; |
| 810 | goto err_out; |
| 811 | } |
| 812 | if (mmio_len < RTL_MIN_IO_SIZE) { |
| 813 | dev_err(&pdev->dev, "Invalid PCI mem region size(s), aborting\n"); |
| 814 | rc = -ENODEV; |
| 815 | goto err_out; |
| 816 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 817 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 818 | |
Jeff Garzik | 2e8a538 | 2006-06-27 10:47:51 -0400 | [diff] [blame] | 819 | rc = pci_request_regions (pdev, DRV_NAME); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 820 | if (rc) |
| 821 | goto err_out; |
| 822 | disable_dev_on_err = 1; |
| 823 | |
| 824 | /* enable PCI bus-mastering */ |
| 825 | pci_set_master (pdev); |
| 826 | |
Dave Jones | eb58134 | 2008-07-15 19:54:53 -0400 | [diff] [blame] | 827 | if (use_io) { |
| 828 | ioaddr = pci_iomap(pdev, 0, 0); |
| 829 | if (!ioaddr) { |
| 830 | dev_err(&pdev->dev, "cannot map PIO, aborting\n"); |
| 831 | rc = -EIO; |
| 832 | goto err_out; |
| 833 | } |
| 834 | dev->base_addr = pio_start; |
| 835 | tp->regs_len = pio_len; |
| 836 | } else { |
| 837 | /* ioremap MMIO region */ |
| 838 | ioaddr = pci_iomap(pdev, 1, 0); |
| 839 | if (ioaddr == NULL) { |
Dave Jones | 1a4dc68 | 2008-07-15 19:54:52 -0400 | [diff] [blame] | 840 | dev_err(&pdev->dev, "cannot remap MMIO, trying PIO\n"); |
| 841 | pci_release_regions(pdev); |
| 842 | use_io = 1; |
| 843 | goto retry; |
Dave Jones | eb58134 | 2008-07-15 19:54:53 -0400 | [diff] [blame] | 844 | } |
| 845 | dev->base_addr = (long) ioaddr; |
| 846 | tp->regs_len = mmio_len; |
Pekka Enberg | 22f714b | 2005-05-12 19:38:47 -0400 | [diff] [blame] | 847 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 848 | tp->mmio_addr = ioaddr; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 849 | |
| 850 | /* Bring old chips out of low-power mode. */ |
| 851 | RTL_W8 (HltClk, 'R'); |
| 852 | |
| 853 | /* check for missing/broken hardware */ |
| 854 | if (RTL_R32 (TxConfig) == 0xFFFFFFFF) { |
Jeff Garzik | 9b91cf9 | 2006-06-27 11:39:50 -0400 | [diff] [blame] | 855 | dev_err(&pdev->dev, "Chip not responding, ignoring board\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 856 | rc = -EIO; |
| 857 | goto err_out; |
| 858 | } |
| 859 | |
| 860 | /* identify chip attached to board */ |
| 861 | version = RTL_R32 (TxConfig) & HW_REVID_MASK; |
| 862 | for (i = 0; i < ARRAY_SIZE (rtl_chip_info); i++) |
| 863 | if (version == rtl_chip_info[i].version) { |
| 864 | tp->chipset = i; |
| 865 | goto match; |
| 866 | } |
| 867 | |
| 868 | /* 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] | 869 | dev_printk (KERN_DEBUG, &pdev->dev, |
| 870 | "unknown chip version, assuming RTL-8139\n"); |
| 871 | dev_printk (KERN_DEBUG, &pdev->dev, |
| 872 | "TxConfig = 0x%lx\n", RTL_R32 (TxConfig)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 873 | tp->chipset = 0; |
| 874 | |
| 875 | match: |
| 876 | DPRINTK ("chipset id (%d) == index %d, '%s'\n", |
| 877 | version, i, rtl_chip_info[i].name); |
| 878 | |
| 879 | if (tp->chipset >= CH_8139B) { |
| 880 | u8 new_tmp8 = tmp8 = RTL_R8 (Config1); |
| 881 | DPRINTK("PCI PM wakeup\n"); |
| 882 | if ((rtl_chip_info[tp->chipset].flags & HasLWake) && |
| 883 | (tmp8 & LWAKE)) |
| 884 | new_tmp8 &= ~LWAKE; |
| 885 | new_tmp8 |= Cfg1_PM_Enable; |
| 886 | if (new_tmp8 != tmp8) { |
| 887 | RTL_W8 (Cfg9346, Cfg9346_Unlock); |
| 888 | RTL_W8 (Config1, tmp8); |
| 889 | RTL_W8 (Cfg9346, Cfg9346_Lock); |
| 890 | } |
| 891 | if (rtl_chip_info[tp->chipset].flags & HasLWake) { |
| 892 | tmp8 = RTL_R8 (Config4); |
| 893 | if (tmp8 & LWPTN) { |
| 894 | RTL_W8 (Cfg9346, Cfg9346_Unlock); |
| 895 | RTL_W8 (Config4, tmp8 & ~LWPTN); |
| 896 | RTL_W8 (Cfg9346, Cfg9346_Lock); |
| 897 | } |
| 898 | } |
| 899 | } else { |
| 900 | DPRINTK("Old chip wakeup\n"); |
| 901 | tmp8 = RTL_R8 (Config1); |
| 902 | tmp8 &= ~(SLEEP | PWRDN); |
| 903 | RTL_W8 (Config1, tmp8); |
| 904 | } |
| 905 | |
| 906 | rtl8139_chip_reset (ioaddr); |
| 907 | |
| 908 | *dev_out = dev; |
| 909 | return 0; |
| 910 | |
| 911 | err_out: |
| 912 | __rtl8139_cleanup_dev (dev); |
| 913 | if (disable_dev_on_err) |
| 914 | pci_disable_device (pdev); |
| 915 | return rc; |
| 916 | } |
| 917 | |
| 918 | |
| 919 | static int __devinit rtl8139_init_one (struct pci_dev *pdev, |
| 920 | const struct pci_device_id *ent) |
| 921 | { |
| 922 | struct net_device *dev = NULL; |
| 923 | struct rtl8139_private *tp; |
| 924 | int i, addr_len, option; |
Pekka Enberg | 22f714b | 2005-05-12 19:38:47 -0400 | [diff] [blame] | 925 | void __iomem *ioaddr; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 926 | static int board_idx = -1; |
Joe Perches | 0795af5 | 2007-10-03 17:59:30 -0700 | [diff] [blame] | 927 | DECLARE_MAC_BUF(mac); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 928 | |
| 929 | assert (pdev != NULL); |
| 930 | assert (ent != NULL); |
| 931 | |
| 932 | board_idx++; |
| 933 | |
| 934 | /* when we're built into the kernel, the driver version message |
| 935 | * is only printed if at least one 8139 board has been found |
| 936 | */ |
| 937 | #ifndef MODULE |
| 938 | { |
| 939 | static int printed_version; |
| 940 | if (!printed_version++) |
| 941 | printk (KERN_INFO RTL8139_DRIVER_NAME "\n"); |
| 942 | } |
| 943 | #endif |
| 944 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 945 | if (pdev->vendor == PCI_VENDOR_ID_REALTEK && |
Auke Kok | 44c1013 | 2007-06-08 15:46:36 -0700 | [diff] [blame] | 946 | pdev->device == PCI_DEVICE_ID_REALTEK_8139 && pdev->revision >= 0x20) { |
Jeff Garzik | 9b91cf9 | 2006-06-27 11:39:50 -0400 | [diff] [blame] | 947 | dev_info(&pdev->dev, |
Jeff Garzik | 2e8a538 | 2006-06-27 10:47:51 -0400 | [diff] [blame] | 948 | "This (id %04x:%04x rev %02x) is an enhanced 8139C+ chip\n", |
Auke Kok | 44c1013 | 2007-06-08 15:46:36 -0700 | [diff] [blame] | 949 | pdev->vendor, pdev->device, pdev->revision); |
Jeff Garzik | 9b91cf9 | 2006-06-27 11:39:50 -0400 | [diff] [blame] | 950 | dev_info(&pdev->dev, |
Jeff Garzik | 2e8a538 | 2006-06-27 10:47:51 -0400 | [diff] [blame] | 951 | "Use the \"8139cp\" driver for improved performance and stability.\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 952 | } |
| 953 | |
Dave Jones | 152151d | 2008-07-15 19:54:53 -0400 | [diff] [blame] | 954 | if (pdev->vendor == PCI_VENDOR_ID_REALTEK && |
| 955 | pdev->device == PCI_DEVICE_ID_REALTEK_8139 && |
| 956 | pdev->subsystem_vendor == PCI_VENDOR_ID_ATHEROS && |
| 957 | pdev->subsystem_device == PCI_DEVICE_ID_REALTEK_8139) { |
| 958 | printk(KERN_INFO "8139too: OQO Model 2 detected. Forcing PIO\n"); |
| 959 | use_io = 1; |
| 960 | } |
| 961 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 962 | i = rtl8139_init_board (pdev, &dev); |
| 963 | if (i < 0) |
| 964 | return i; |
| 965 | |
| 966 | assert (dev != NULL); |
| 967 | tp = netdev_priv(dev); |
Stephen Hemminger | bea3348 | 2007-10-03 16:41:36 -0700 | [diff] [blame] | 968 | tp->dev = dev; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 969 | |
| 970 | ioaddr = tp->mmio_addr; |
| 971 | assert (ioaddr != NULL); |
| 972 | |
| 973 | addr_len = read_eeprom (ioaddr, 0, 8) == 0x8129 ? 8 : 6; |
| 974 | for (i = 0; i < 3; i++) |
Al Viro | eca1ad8 | 2008-03-16 22:21:54 +0000 | [diff] [blame] | 975 | ((__le16 *) (dev->dev_addr))[i] = |
| 976 | cpu_to_le16(read_eeprom (ioaddr, i + 7, addr_len)); |
John W. Linville | 62a720b | 2005-09-12 10:48:55 -0400 | [diff] [blame] | 977 | memcpy(dev->perm_addr, dev->dev_addr, dev->addr_len); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 978 | |
| 979 | /* The Rtl8139-specific entries in the device structure. */ |
| 980 | dev->open = rtl8139_open; |
| 981 | dev->hard_start_xmit = rtl8139_start_xmit; |
Stephen Hemminger | bea3348 | 2007-10-03 16:41:36 -0700 | [diff] [blame] | 982 | netif_napi_add(dev, &tp->napi, rtl8139_poll, 64); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 983 | dev->stop = rtl8139_close; |
| 984 | dev->get_stats = rtl8139_get_stats; |
| 985 | dev->set_multicast_list = rtl8139_set_rx_mode; |
| 986 | dev->do_ioctl = netdev_ioctl; |
| 987 | dev->ethtool_ops = &rtl8139_ethtool_ops; |
| 988 | dev->tx_timeout = rtl8139_tx_timeout; |
| 989 | dev->watchdog_timeo = TX_TIMEOUT; |
| 990 | #ifdef CONFIG_NET_POLL_CONTROLLER |
| 991 | dev->poll_controller = rtl8139_poll_controller; |
| 992 | #endif |
| 993 | |
| 994 | /* note: the hardware is not capable of sg/csum/highdma, however |
| 995 | * through the use of skb_copy_and_csum_dev we enable these |
| 996 | * features |
| 997 | */ |
| 998 | dev->features |= NETIF_F_SG | NETIF_F_HW_CSUM | NETIF_F_HIGHDMA; |
| 999 | |
| 1000 | dev->irq = pdev->irq; |
| 1001 | |
| 1002 | /* tp zeroed and aligned in alloc_etherdev */ |
| 1003 | tp = netdev_priv(dev); |
| 1004 | |
| 1005 | /* note: tp->chipset set in rtl8139_init_board */ |
| 1006 | tp->drv_flags = board_info[ent->driver_data].hw_flags; |
| 1007 | tp->mmio_addr = ioaddr; |
| 1008 | tp->msg_enable = |
| 1009 | (debug < 0 ? RTL8139_DEF_MSG_ENABLE : ((1 << debug) - 1)); |
| 1010 | spin_lock_init (&tp->lock); |
| 1011 | spin_lock_init (&tp->rx_lock); |
David Howells | c402895 | 2006-11-22 14:57:56 +0000 | [diff] [blame] | 1012 | INIT_DELAYED_WORK(&tp->thread, rtl8139_thread); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1013 | tp->mii.dev = dev; |
| 1014 | tp->mii.mdio_read = mdio_read; |
| 1015 | tp->mii.mdio_write = mdio_write; |
| 1016 | tp->mii.phy_id_mask = 0x3f; |
| 1017 | tp->mii.reg_num_mask = 0x1f; |
| 1018 | |
| 1019 | /* dev is fully set up and ready to use now */ |
| 1020 | DPRINTK("about to register device named %s (%p)...\n", dev->name, dev); |
| 1021 | i = register_netdev (dev); |
| 1022 | if (i) goto err_out; |
| 1023 | |
| 1024 | pci_set_drvdata (pdev, dev); |
| 1025 | |
| 1026 | printk (KERN_INFO "%s: %s at 0x%lx, " |
Joe Perches | 0795af5 | 2007-10-03 17:59:30 -0700 | [diff] [blame] | 1027 | "%s, IRQ %d\n", |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1028 | dev->name, |
| 1029 | board_info[ent->driver_data].name, |
| 1030 | dev->base_addr, |
Joe Perches | 0795af5 | 2007-10-03 17:59:30 -0700 | [diff] [blame] | 1031 | print_mac(mac, dev->dev_addr), |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1032 | dev->irq); |
| 1033 | |
| 1034 | printk (KERN_DEBUG "%s: Identified 8139 chip type '%s'\n", |
| 1035 | dev->name, rtl_chip_info[tp->chipset].name); |
| 1036 | |
| 1037 | /* Find the connected MII xcvrs. |
| 1038 | Doing this in open() would allow detecting external xcvrs later, but |
| 1039 | takes too much time. */ |
| 1040 | #ifdef CONFIG_8139TOO_8129 |
| 1041 | if (tp->drv_flags & HAS_MII_XCVR) { |
| 1042 | int phy, phy_idx = 0; |
| 1043 | for (phy = 0; phy < 32 && phy_idx < sizeof(tp->phys); phy++) { |
| 1044 | int mii_status = mdio_read(dev, phy, 1); |
| 1045 | if (mii_status != 0xffff && mii_status != 0x0000) { |
| 1046 | u16 advertising = mdio_read(dev, phy, 4); |
| 1047 | tp->phys[phy_idx++] = phy; |
| 1048 | printk(KERN_INFO "%s: MII transceiver %d status 0x%4.4x " |
| 1049 | "advertising %4.4x.\n", |
| 1050 | dev->name, phy, mii_status, advertising); |
| 1051 | } |
| 1052 | } |
| 1053 | if (phy_idx == 0) { |
| 1054 | printk(KERN_INFO "%s: No MII transceivers found! Assuming SYM " |
| 1055 | "transceiver.\n", |
| 1056 | dev->name); |
| 1057 | tp->phys[0] = 32; |
| 1058 | } |
| 1059 | } else |
| 1060 | #endif |
| 1061 | tp->phys[0] = 32; |
| 1062 | tp->mii.phy_id = tp->phys[0]; |
| 1063 | |
| 1064 | /* The lower four bits are the media type. */ |
| 1065 | option = (board_idx >= MAX_UNITS) ? 0 : media[board_idx]; |
| 1066 | if (option > 0) { |
| 1067 | tp->mii.full_duplex = (option & 0x210) ? 1 : 0; |
| 1068 | tp->default_port = option & 0xFF; |
| 1069 | if (tp->default_port) |
| 1070 | tp->mii.force_media = 1; |
| 1071 | } |
| 1072 | if (board_idx < MAX_UNITS && full_duplex[board_idx] > 0) |
| 1073 | tp->mii.full_duplex = full_duplex[board_idx]; |
| 1074 | if (tp->mii.full_duplex) { |
| 1075 | printk(KERN_INFO "%s: Media type forced to Full Duplex.\n", dev->name); |
| 1076 | /* Changing the MII-advertised media because might prevent |
| 1077 | re-connection. */ |
| 1078 | tp->mii.force_media = 1; |
| 1079 | } |
| 1080 | if (tp->default_port) { |
| 1081 | printk(KERN_INFO " Forcing %dMbps %s-duplex operation.\n", |
| 1082 | (option & 0x20 ? 100 : 10), |
| 1083 | (option & 0x10 ? "full" : "half")); |
| 1084 | mdio_write(dev, tp->phys[0], 0, |
| 1085 | ((option & 0x20) ? 0x2000 : 0) | /* 100Mbps? */ |
| 1086 | ((option & 0x10) ? 0x0100 : 0)); /* Full duplex? */ |
| 1087 | } |
| 1088 | |
| 1089 | /* Put the chip into low-power mode. */ |
| 1090 | if (rtl_chip_info[tp->chipset].flags & HasHltClk) |
| 1091 | RTL_W8 (HltClk, 'H'); /* 'R' would leave the clock running. */ |
| 1092 | |
| 1093 | return 0; |
| 1094 | |
| 1095 | err_out: |
| 1096 | __rtl8139_cleanup_dev (dev); |
| 1097 | pci_disable_device (pdev); |
| 1098 | return i; |
| 1099 | } |
| 1100 | |
| 1101 | |
| 1102 | static void __devexit rtl8139_remove_one (struct pci_dev *pdev) |
| 1103 | { |
| 1104 | struct net_device *dev = pci_get_drvdata (pdev); |
| 1105 | |
| 1106 | assert (dev != NULL); |
| 1107 | |
Francois Romieu | 83cbb4d | 2007-02-15 23:37:44 +0100 | [diff] [blame] | 1108 | flush_scheduled_work(); |
| 1109 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1110 | unregister_netdev (dev); |
| 1111 | |
| 1112 | __rtl8139_cleanup_dev (dev); |
| 1113 | pci_disable_device (pdev); |
| 1114 | } |
| 1115 | |
| 1116 | |
| 1117 | /* Serial EEPROM section. */ |
| 1118 | |
| 1119 | /* EEPROM_Ctrl bits. */ |
| 1120 | #define EE_SHIFT_CLK 0x04 /* EEPROM shift clock. */ |
| 1121 | #define EE_CS 0x08 /* EEPROM chip select. */ |
| 1122 | #define EE_DATA_WRITE 0x02 /* EEPROM chip data in. */ |
| 1123 | #define EE_WRITE_0 0x00 |
| 1124 | #define EE_WRITE_1 0x02 |
| 1125 | #define EE_DATA_READ 0x01 /* EEPROM chip data out. */ |
| 1126 | #define EE_ENB (0x80 | EE_CS) |
| 1127 | |
| 1128 | /* Delay between EEPROM clock transitions. |
| 1129 | No extra delay is needed with 33Mhz PCI, but 66Mhz may change this. |
| 1130 | */ |
| 1131 | |
Takashi Iwai | 10e705f | 2006-03-24 03:18:23 -0800 | [diff] [blame] | 1132 | #define eeprom_delay() (void)RTL_R32(Cfg9346) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1133 | |
| 1134 | /* The EEPROM commands include the alway-set leading bit. */ |
| 1135 | #define EE_WRITE_CMD (5) |
| 1136 | #define EE_READ_CMD (6) |
| 1137 | #define EE_ERASE_CMD (7) |
| 1138 | |
Pekka Enberg | 22f714b | 2005-05-12 19:38:47 -0400 | [diff] [blame] | 1139 | 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] | 1140 | { |
| 1141 | int i; |
| 1142 | unsigned retval = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1143 | int read_cmd = location | (EE_READ_CMD << addr_len); |
| 1144 | |
Pekka Enberg | 22f714b | 2005-05-12 19:38:47 -0400 | [diff] [blame] | 1145 | RTL_W8 (Cfg9346, EE_ENB & ~EE_CS); |
| 1146 | RTL_W8 (Cfg9346, EE_ENB); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1147 | eeprom_delay (); |
| 1148 | |
| 1149 | /* Shift the read command bits out. */ |
| 1150 | for (i = 4 + addr_len; i >= 0; i--) { |
| 1151 | int dataval = (read_cmd & (1 << i)) ? EE_DATA_WRITE : 0; |
Pekka Enberg | 22f714b | 2005-05-12 19:38:47 -0400 | [diff] [blame] | 1152 | RTL_W8 (Cfg9346, EE_ENB | dataval); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1153 | eeprom_delay (); |
Pekka Enberg | 22f714b | 2005-05-12 19:38:47 -0400 | [diff] [blame] | 1154 | RTL_W8 (Cfg9346, EE_ENB | dataval | EE_SHIFT_CLK); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1155 | eeprom_delay (); |
| 1156 | } |
Pekka Enberg | 22f714b | 2005-05-12 19:38:47 -0400 | [diff] [blame] | 1157 | RTL_W8 (Cfg9346, EE_ENB); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1158 | eeprom_delay (); |
| 1159 | |
| 1160 | for (i = 16; i > 0; i--) { |
Pekka Enberg | 22f714b | 2005-05-12 19:38:47 -0400 | [diff] [blame] | 1161 | RTL_W8 (Cfg9346, EE_ENB | EE_SHIFT_CLK); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1162 | eeprom_delay (); |
| 1163 | retval = |
Pekka Enberg | 22f714b | 2005-05-12 19:38:47 -0400 | [diff] [blame] | 1164 | (retval << 1) | ((RTL_R8 (Cfg9346) & EE_DATA_READ) ? 1 : |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1165 | 0); |
Pekka Enberg | 22f714b | 2005-05-12 19:38:47 -0400 | [diff] [blame] | 1166 | RTL_W8 (Cfg9346, EE_ENB); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1167 | eeprom_delay (); |
| 1168 | } |
| 1169 | |
| 1170 | /* Terminate the EEPROM access. */ |
Pekka Enberg | 22f714b | 2005-05-12 19:38:47 -0400 | [diff] [blame] | 1171 | RTL_W8 (Cfg9346, ~EE_CS); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1172 | eeprom_delay (); |
| 1173 | |
| 1174 | return retval; |
| 1175 | } |
| 1176 | |
| 1177 | /* MII serial management: mostly bogus for now. */ |
| 1178 | /* Read and write the MII management registers using software-generated |
| 1179 | serial MDIO protocol. |
| 1180 | The maximum data clock rate is 2.5 Mhz. The minimum timing is usually |
| 1181 | met by back-to-back PCI I/O cycles, but we insert a delay to avoid |
| 1182 | "overclocking" issues. */ |
| 1183 | #define MDIO_DIR 0x80 |
| 1184 | #define MDIO_DATA_OUT 0x04 |
| 1185 | #define MDIO_DATA_IN 0x02 |
| 1186 | #define MDIO_CLK 0x01 |
| 1187 | #define MDIO_WRITE0 (MDIO_DIR) |
| 1188 | #define MDIO_WRITE1 (MDIO_DIR | MDIO_DATA_OUT) |
| 1189 | |
Pekka Enberg | 22f714b | 2005-05-12 19:38:47 -0400 | [diff] [blame] | 1190 | #define mdio_delay() RTL_R8(Config4) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1191 | |
| 1192 | |
Arjan van de Ven | f71e130 | 2006-03-03 21:33:57 -0500 | [diff] [blame] | 1193 | static const char mii_2_8139_map[8] = { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1194 | BasicModeCtrl, |
| 1195 | BasicModeStatus, |
| 1196 | 0, |
| 1197 | 0, |
| 1198 | NWayAdvert, |
| 1199 | NWayLPAR, |
| 1200 | NWayExpansion, |
| 1201 | 0 |
| 1202 | }; |
| 1203 | |
| 1204 | |
| 1205 | #ifdef CONFIG_8139TOO_8129 |
| 1206 | /* Syncronize the MII management interface by shifting 32 one bits out. */ |
Pekka Enberg | 22f714b | 2005-05-12 19:38:47 -0400 | [diff] [blame] | 1207 | static void mdio_sync (void __iomem *ioaddr) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1208 | { |
| 1209 | int i; |
| 1210 | |
| 1211 | for (i = 32; i >= 0; i--) { |
Pekka Enberg | 22f714b | 2005-05-12 19:38:47 -0400 | [diff] [blame] | 1212 | RTL_W8 (Config4, MDIO_WRITE1); |
| 1213 | mdio_delay (); |
| 1214 | RTL_W8 (Config4, MDIO_WRITE1 | MDIO_CLK); |
| 1215 | mdio_delay (); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1216 | } |
| 1217 | } |
| 1218 | #endif |
| 1219 | |
| 1220 | static int mdio_read (struct net_device *dev, int phy_id, int location) |
| 1221 | { |
| 1222 | struct rtl8139_private *tp = netdev_priv(dev); |
| 1223 | int retval = 0; |
| 1224 | #ifdef CONFIG_8139TOO_8129 |
Pekka Enberg | 22f714b | 2005-05-12 19:38:47 -0400 | [diff] [blame] | 1225 | void __iomem *ioaddr = tp->mmio_addr; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1226 | int mii_cmd = (0xf6 << 10) | (phy_id << 5) | location; |
| 1227 | int i; |
| 1228 | #endif |
| 1229 | |
| 1230 | if (phy_id > 31) { /* Really a 8139. Use internal registers. */ |
Pekka Enberg | 22f714b | 2005-05-12 19:38:47 -0400 | [diff] [blame] | 1231 | void __iomem *ioaddr = tp->mmio_addr; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1232 | return location < 8 && mii_2_8139_map[location] ? |
Pekka Enberg | 22f714b | 2005-05-12 19:38:47 -0400 | [diff] [blame] | 1233 | RTL_R16 (mii_2_8139_map[location]) : 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1234 | } |
| 1235 | |
| 1236 | #ifdef CONFIG_8139TOO_8129 |
Pekka Enberg | 22f714b | 2005-05-12 19:38:47 -0400 | [diff] [blame] | 1237 | mdio_sync (ioaddr); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1238 | /* Shift the read command bits out. */ |
| 1239 | for (i = 15; i >= 0; i--) { |
| 1240 | int dataval = (mii_cmd & (1 << i)) ? MDIO_DATA_OUT : 0; |
| 1241 | |
Pekka Enberg | 22f714b | 2005-05-12 19:38:47 -0400 | [diff] [blame] | 1242 | RTL_W8 (Config4, MDIO_DIR | dataval); |
| 1243 | mdio_delay (); |
| 1244 | RTL_W8 (Config4, MDIO_DIR | dataval | MDIO_CLK); |
| 1245 | mdio_delay (); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1246 | } |
| 1247 | |
| 1248 | /* Read the two transition, 16 data, and wire-idle bits. */ |
| 1249 | for (i = 19; i > 0; i--) { |
Pekka Enberg | 22f714b | 2005-05-12 19:38:47 -0400 | [diff] [blame] | 1250 | RTL_W8 (Config4, 0); |
| 1251 | mdio_delay (); |
| 1252 | retval = (retval << 1) | ((RTL_R8 (Config4) & MDIO_DATA_IN) ? 1 : 0); |
| 1253 | RTL_W8 (Config4, MDIO_CLK); |
| 1254 | mdio_delay (); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1255 | } |
| 1256 | #endif |
| 1257 | |
| 1258 | return (retval >> 1) & 0xffff; |
| 1259 | } |
| 1260 | |
| 1261 | |
| 1262 | static void mdio_write (struct net_device *dev, int phy_id, int location, |
| 1263 | int value) |
| 1264 | { |
| 1265 | struct rtl8139_private *tp = netdev_priv(dev); |
| 1266 | #ifdef CONFIG_8139TOO_8129 |
Pekka Enberg | 22f714b | 2005-05-12 19:38:47 -0400 | [diff] [blame] | 1267 | void __iomem *ioaddr = tp->mmio_addr; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1268 | int mii_cmd = (0x5002 << 16) | (phy_id << 23) | (location << 18) | value; |
| 1269 | int i; |
| 1270 | #endif |
| 1271 | |
| 1272 | if (phy_id > 31) { /* Really a 8139. Use internal registers. */ |
Pekka Enberg | 22f714b | 2005-05-12 19:38:47 -0400 | [diff] [blame] | 1273 | void __iomem *ioaddr = tp->mmio_addr; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1274 | if (location == 0) { |
| 1275 | RTL_W8 (Cfg9346, Cfg9346_Unlock); |
| 1276 | RTL_W16 (BasicModeCtrl, value); |
| 1277 | RTL_W8 (Cfg9346, Cfg9346_Lock); |
| 1278 | } else if (location < 8 && mii_2_8139_map[location]) |
| 1279 | RTL_W16 (mii_2_8139_map[location], value); |
| 1280 | return; |
| 1281 | } |
| 1282 | |
| 1283 | #ifdef CONFIG_8139TOO_8129 |
Pekka Enberg | 22f714b | 2005-05-12 19:38:47 -0400 | [diff] [blame] | 1284 | mdio_sync (ioaddr); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1285 | |
| 1286 | /* Shift the command bits out. */ |
| 1287 | for (i = 31; i >= 0; i--) { |
| 1288 | int dataval = |
| 1289 | (mii_cmd & (1 << i)) ? MDIO_WRITE1 : MDIO_WRITE0; |
Pekka Enberg | 22f714b | 2005-05-12 19:38:47 -0400 | [diff] [blame] | 1290 | RTL_W8 (Config4, dataval); |
| 1291 | mdio_delay (); |
| 1292 | RTL_W8 (Config4, dataval | MDIO_CLK); |
| 1293 | mdio_delay (); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1294 | } |
| 1295 | /* Clear out extra bits. */ |
| 1296 | for (i = 2; i > 0; i--) { |
Pekka Enberg | 22f714b | 2005-05-12 19:38:47 -0400 | [diff] [blame] | 1297 | RTL_W8 (Config4, 0); |
| 1298 | mdio_delay (); |
| 1299 | RTL_W8 (Config4, MDIO_CLK); |
| 1300 | mdio_delay (); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1301 | } |
| 1302 | #endif |
| 1303 | } |
| 1304 | |
| 1305 | |
| 1306 | static int rtl8139_open (struct net_device *dev) |
| 1307 | { |
| 1308 | struct rtl8139_private *tp = netdev_priv(dev); |
| 1309 | int retval; |
Pekka Enberg | 22f714b | 2005-05-12 19:38:47 -0400 | [diff] [blame] | 1310 | void __iomem *ioaddr = tp->mmio_addr; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1311 | |
Thomas Gleixner | 1fb9df5 | 2006-07-01 19:29:39 -0700 | [diff] [blame] | 1312 | retval = request_irq (dev->irq, rtl8139_interrupt, IRQF_SHARED, dev->name, dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1313 | if (retval) |
| 1314 | return retval; |
| 1315 | |
Jeff Garzik | 6cc92cd | 2007-08-08 02:16:04 -0400 | [diff] [blame] | 1316 | tp->tx_bufs = dma_alloc_coherent(&tp->pci_dev->dev, TX_BUF_TOT_LEN, |
| 1317 | &tp->tx_bufs_dma, GFP_KERNEL); |
| 1318 | tp->rx_ring = dma_alloc_coherent(&tp->pci_dev->dev, RX_BUF_TOT_LEN, |
| 1319 | &tp->rx_ring_dma, GFP_KERNEL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1320 | if (tp->tx_bufs == NULL || tp->rx_ring == NULL) { |
| 1321 | free_irq(dev->irq, dev); |
| 1322 | |
| 1323 | if (tp->tx_bufs) |
Jeff Garzik | 6cc92cd | 2007-08-08 02:16:04 -0400 | [diff] [blame] | 1324 | dma_free_coherent(&tp->pci_dev->dev, TX_BUF_TOT_LEN, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1325 | tp->tx_bufs, tp->tx_bufs_dma); |
| 1326 | if (tp->rx_ring) |
Jeff Garzik | 6cc92cd | 2007-08-08 02:16:04 -0400 | [diff] [blame] | 1327 | dma_free_coherent(&tp->pci_dev->dev, RX_BUF_TOT_LEN, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1328 | tp->rx_ring, tp->rx_ring_dma); |
| 1329 | |
| 1330 | return -ENOMEM; |
| 1331 | |
| 1332 | } |
| 1333 | |
Stephen Hemminger | bea3348 | 2007-10-03 16:41:36 -0700 | [diff] [blame] | 1334 | napi_enable(&tp->napi); |
| 1335 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1336 | tp->mii.full_duplex = tp->mii.force_media; |
| 1337 | tp->tx_flag = (TX_FIFO_THRESH << 11) & 0x003f0000; |
| 1338 | |
| 1339 | rtl8139_init_ring (dev); |
| 1340 | rtl8139_hw_start (dev); |
| 1341 | netif_start_queue (dev); |
| 1342 | |
| 1343 | if (netif_msg_ifup(tp)) |
Greg Kroah-Hartman | 7c7459d | 2006-06-12 15:13:08 -0700 | [diff] [blame] | 1344 | printk(KERN_DEBUG "%s: rtl8139_open() ioaddr %#llx IRQ %d" |
| 1345 | " GP Pins %2.2x %s-duplex.\n", dev->name, |
| 1346 | (unsigned long long)pci_resource_start (tp->pci_dev, 1), |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1347 | dev->irq, RTL_R8 (MediaStatus), |
| 1348 | tp->mii.full_duplex ? "full" : "half"); |
| 1349 | |
Jeff Garzik | a15e038 | 2005-10-31 07:59:37 -0500 | [diff] [blame] | 1350 | rtl8139_start_thread(tp); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1351 | |
| 1352 | return 0; |
| 1353 | } |
| 1354 | |
| 1355 | |
| 1356 | static void rtl_check_media (struct net_device *dev, unsigned int init_media) |
| 1357 | { |
| 1358 | struct rtl8139_private *tp = netdev_priv(dev); |
| 1359 | |
| 1360 | if (tp->phys[0] >= 0) { |
| 1361 | mii_check_media(&tp->mii, netif_msg_link(tp), init_media); |
| 1362 | } |
| 1363 | } |
| 1364 | |
| 1365 | /* Start the hardware at open or resume. */ |
| 1366 | static void rtl8139_hw_start (struct net_device *dev) |
| 1367 | { |
| 1368 | struct rtl8139_private *tp = netdev_priv(dev); |
Pekka Enberg | 22f714b | 2005-05-12 19:38:47 -0400 | [diff] [blame] | 1369 | void __iomem *ioaddr = tp->mmio_addr; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1370 | u32 i; |
| 1371 | u8 tmp; |
| 1372 | |
| 1373 | /* Bring old chips out of low-power mode. */ |
| 1374 | if (rtl_chip_info[tp->chipset].flags & HasHltClk) |
| 1375 | RTL_W8 (HltClk, 'R'); |
| 1376 | |
| 1377 | rtl8139_chip_reset (ioaddr); |
| 1378 | |
| 1379 | /* unlock Config[01234] and BMCR register writes */ |
| 1380 | RTL_W8_F (Cfg9346, Cfg9346_Unlock); |
| 1381 | /* Restore our idea of the MAC address. */ |
Al Viro | eca1ad8 | 2008-03-16 22:21:54 +0000 | [diff] [blame] | 1382 | RTL_W32_F (MAC0 + 0, le32_to_cpu (*(__le32 *) (dev->dev_addr + 0))); |
| 1383 | RTL_W32_F (MAC0 + 4, le16_to_cpu (*(__le16 *) (dev->dev_addr + 4))); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1384 | |
| 1385 | /* Must enable Tx/Rx before setting transfer thresholds! */ |
| 1386 | RTL_W8 (ChipCmd, CmdRxEnb | CmdTxEnb); |
| 1387 | |
| 1388 | tp->rx_config = rtl8139_rx_config | AcceptBroadcast | AcceptMyPhys; |
| 1389 | RTL_W32 (RxConfig, tp->rx_config); |
| 1390 | RTL_W32 (TxConfig, rtl8139_tx_config); |
| 1391 | |
| 1392 | tp->cur_rx = 0; |
| 1393 | |
| 1394 | rtl_check_media (dev, 1); |
| 1395 | |
| 1396 | if (tp->chipset >= CH_8139B) { |
| 1397 | /* Disable magic packet scanning, which is enabled |
| 1398 | * when PM is enabled in Config1. It can be reenabled |
| 1399 | * via ETHTOOL_SWOL if desired. */ |
| 1400 | RTL_W8 (Config3, RTL_R8 (Config3) & ~Cfg3_Magic); |
| 1401 | } |
| 1402 | |
| 1403 | DPRINTK("init buffer addresses\n"); |
| 1404 | |
| 1405 | /* Lock Config[01234] and BMCR register writes */ |
| 1406 | RTL_W8 (Cfg9346, Cfg9346_Lock); |
| 1407 | |
| 1408 | /* init Rx ring buffer DMA address */ |
| 1409 | RTL_W32_F (RxBuf, tp->rx_ring_dma); |
| 1410 | |
| 1411 | /* init Tx buffer DMA addresses */ |
| 1412 | for (i = 0; i < NUM_TX_DESC; i++) |
| 1413 | RTL_W32_F (TxAddr0 + (i * 4), tp->tx_bufs_dma + (tp->tx_buf[i] - tp->tx_bufs)); |
| 1414 | |
| 1415 | RTL_W32 (RxMissed, 0); |
| 1416 | |
| 1417 | rtl8139_set_rx_mode (dev); |
| 1418 | |
| 1419 | /* no early-rx interrupts */ |
| 1420 | RTL_W16 (MultiIntr, RTL_R16 (MultiIntr) & MultiIntrClear); |
| 1421 | |
| 1422 | /* make sure RxTx has started */ |
| 1423 | tmp = RTL_R8 (ChipCmd); |
| 1424 | if ((!(tmp & CmdRxEnb)) || (!(tmp & CmdTxEnb))) |
| 1425 | RTL_W8 (ChipCmd, CmdRxEnb | CmdTxEnb); |
| 1426 | |
| 1427 | /* Enable all known interrupts by setting the interrupt mask. */ |
| 1428 | RTL_W16 (IntrMask, rtl8139_intr_mask); |
| 1429 | } |
| 1430 | |
| 1431 | |
| 1432 | /* Initialize the Rx and Tx rings, along with various 'dev' bits. */ |
| 1433 | static void rtl8139_init_ring (struct net_device *dev) |
| 1434 | { |
| 1435 | struct rtl8139_private *tp = netdev_priv(dev); |
| 1436 | int i; |
| 1437 | |
| 1438 | tp->cur_rx = 0; |
| 1439 | tp->cur_tx = 0; |
| 1440 | tp->dirty_tx = 0; |
| 1441 | |
| 1442 | for (i = 0; i < NUM_TX_DESC; i++) |
| 1443 | tp->tx_buf[i] = &tp->tx_bufs[i * TX_BUF_SIZE]; |
| 1444 | } |
| 1445 | |
| 1446 | |
| 1447 | /* This must be global for CONFIG_8139TOO_TUNE_TWISTER case */ |
| 1448 | static int next_tick = 3 * HZ; |
| 1449 | |
| 1450 | #ifndef CONFIG_8139TOO_TUNE_TWISTER |
| 1451 | static inline void rtl8139_tune_twister (struct net_device *dev, |
| 1452 | struct rtl8139_private *tp) {} |
| 1453 | #else |
| 1454 | enum TwisterParamVals { |
| 1455 | PARA78_default = 0x78fa8388, |
| 1456 | PARA7c_default = 0xcb38de43, /* param[0][3] */ |
| 1457 | PARA7c_xxx = 0xcb38de43, |
| 1458 | }; |
| 1459 | |
| 1460 | static const unsigned long param[4][4] = { |
| 1461 | {0xcb39de43, 0xcb39ce43, 0xfb38de03, 0xcb38de43}, |
| 1462 | {0xcb39de43, 0xcb39ce43, 0xcb39ce83, 0xcb39ce83}, |
| 1463 | {0xcb39de43, 0xcb39ce43, 0xcb39ce83, 0xcb39ce83}, |
| 1464 | {0xbb39de43, 0xbb39ce43, 0xbb39ce83, 0xbb39ce83} |
| 1465 | }; |
| 1466 | |
| 1467 | static void rtl8139_tune_twister (struct net_device *dev, |
| 1468 | struct rtl8139_private *tp) |
| 1469 | { |
| 1470 | int linkcase; |
Pekka Enberg | 22f714b | 2005-05-12 19:38:47 -0400 | [diff] [blame] | 1471 | void __iomem *ioaddr = tp->mmio_addr; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1472 | |
| 1473 | /* This is a complicated state machine to configure the "twister" for |
| 1474 | impedance/echos based on the cable length. |
| 1475 | All of this is magic and undocumented. |
| 1476 | */ |
| 1477 | switch (tp->twistie) { |
| 1478 | case 1: |
| 1479 | if (RTL_R16 (CSCR) & CSCR_LinkOKBit) { |
| 1480 | /* We have link beat, let us tune the twister. */ |
| 1481 | RTL_W16 (CSCR, CSCR_LinkDownOffCmd); |
| 1482 | tp->twistie = 2; /* Change to state 2. */ |
| 1483 | next_tick = HZ / 10; |
| 1484 | } else { |
| 1485 | /* Just put in some reasonable defaults for when beat returns. */ |
| 1486 | RTL_W16 (CSCR, CSCR_LinkDownCmd); |
| 1487 | RTL_W32 (FIFOTMS, 0x20); /* Turn on cable test mode. */ |
| 1488 | RTL_W32 (PARA78, PARA78_default); |
| 1489 | RTL_W32 (PARA7c, PARA7c_default); |
| 1490 | tp->twistie = 0; /* Bail from future actions. */ |
| 1491 | } |
| 1492 | break; |
| 1493 | case 2: |
| 1494 | /* Read how long it took to hear the echo. */ |
| 1495 | linkcase = RTL_R16 (CSCR) & CSCR_LinkStatusBits; |
| 1496 | if (linkcase == 0x7000) |
| 1497 | tp->twist_row = 3; |
| 1498 | else if (linkcase == 0x3000) |
| 1499 | tp->twist_row = 2; |
| 1500 | else if (linkcase == 0x1000) |
| 1501 | tp->twist_row = 1; |
| 1502 | else |
| 1503 | tp->twist_row = 0; |
| 1504 | tp->twist_col = 0; |
| 1505 | tp->twistie = 3; /* Change to state 2. */ |
| 1506 | next_tick = HZ / 10; |
| 1507 | break; |
| 1508 | case 3: |
| 1509 | /* Put out four tuning parameters, one per 100msec. */ |
| 1510 | if (tp->twist_col == 0) |
| 1511 | RTL_W16 (FIFOTMS, 0); |
| 1512 | RTL_W32 (PARA7c, param[(int) tp->twist_row] |
| 1513 | [(int) tp->twist_col]); |
| 1514 | next_tick = HZ / 10; |
| 1515 | if (++tp->twist_col >= 4) { |
| 1516 | /* For short cables we are done. |
| 1517 | For long cables (row == 3) check for mistune. */ |
| 1518 | tp->twistie = |
| 1519 | (tp->twist_row == 3) ? 4 : 0; |
| 1520 | } |
| 1521 | break; |
| 1522 | case 4: |
| 1523 | /* Special case for long cables: check for mistune. */ |
| 1524 | if ((RTL_R16 (CSCR) & |
| 1525 | CSCR_LinkStatusBits) == 0x7000) { |
| 1526 | tp->twistie = 0; |
| 1527 | break; |
| 1528 | } else { |
| 1529 | RTL_W32 (PARA7c, 0xfb38de03); |
| 1530 | tp->twistie = 5; |
| 1531 | next_tick = HZ / 10; |
| 1532 | } |
| 1533 | break; |
| 1534 | case 5: |
| 1535 | /* Retune for shorter cable (column 2). */ |
| 1536 | RTL_W32 (FIFOTMS, 0x20); |
| 1537 | RTL_W32 (PARA78, PARA78_default); |
| 1538 | RTL_W32 (PARA7c, PARA7c_default); |
| 1539 | RTL_W32 (FIFOTMS, 0x00); |
| 1540 | tp->twist_row = 2; |
| 1541 | tp->twist_col = 0; |
| 1542 | tp->twistie = 3; |
| 1543 | next_tick = HZ / 10; |
| 1544 | break; |
| 1545 | |
| 1546 | default: |
| 1547 | /* do nothing */ |
| 1548 | break; |
| 1549 | } |
| 1550 | } |
| 1551 | #endif /* CONFIG_8139TOO_TUNE_TWISTER */ |
| 1552 | |
| 1553 | static inline void rtl8139_thread_iter (struct net_device *dev, |
| 1554 | struct rtl8139_private *tp, |
Pekka Enberg | 22f714b | 2005-05-12 19:38:47 -0400 | [diff] [blame] | 1555 | void __iomem *ioaddr) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1556 | { |
| 1557 | int mii_lpa; |
| 1558 | |
| 1559 | mii_lpa = mdio_read (dev, tp->phys[0], MII_LPA); |
| 1560 | |
| 1561 | if (!tp->mii.force_media && mii_lpa != 0xffff) { |
| 1562 | int duplex = (mii_lpa & LPA_100FULL) |
| 1563 | || (mii_lpa & 0x01C0) == 0x0040; |
| 1564 | if (tp->mii.full_duplex != duplex) { |
| 1565 | tp->mii.full_duplex = duplex; |
| 1566 | |
| 1567 | if (mii_lpa) { |
| 1568 | printk (KERN_INFO |
| 1569 | "%s: Setting %s-duplex based on MII #%d link" |
| 1570 | " partner ability of %4.4x.\n", |
| 1571 | dev->name, |
| 1572 | tp->mii.full_duplex ? "full" : "half", |
| 1573 | tp->phys[0], mii_lpa); |
| 1574 | } else { |
| 1575 | printk(KERN_INFO"%s: media is unconnected, link down, or incompatible connection\n", |
| 1576 | dev->name); |
| 1577 | } |
| 1578 | #if 0 |
| 1579 | RTL_W8 (Cfg9346, Cfg9346_Unlock); |
| 1580 | RTL_W8 (Config1, tp->mii.full_duplex ? 0x60 : 0x20); |
| 1581 | RTL_W8 (Cfg9346, Cfg9346_Lock); |
| 1582 | #endif |
| 1583 | } |
| 1584 | } |
| 1585 | |
| 1586 | next_tick = HZ * 60; |
| 1587 | |
| 1588 | rtl8139_tune_twister (dev, tp); |
| 1589 | |
| 1590 | DPRINTK ("%s: Media selection tick, Link partner %4.4x.\n", |
| 1591 | dev->name, RTL_R16 (NWayLPAR)); |
| 1592 | DPRINTK ("%s: Other registers are IntMask %4.4x IntStatus %4.4x\n", |
| 1593 | dev->name, RTL_R16 (IntrMask), RTL_R16 (IntrStatus)); |
| 1594 | DPRINTK ("%s: Chip config %2.2x %2.2x.\n", |
| 1595 | dev->name, RTL_R8 (Config0), |
| 1596 | RTL_R8 (Config1)); |
| 1597 | } |
| 1598 | |
David Howells | c402895 | 2006-11-22 14:57:56 +0000 | [diff] [blame] | 1599 | static void rtl8139_thread (struct work_struct *work) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1600 | { |
David Howells | c402895 | 2006-11-22 14:57:56 +0000 | [diff] [blame] | 1601 | struct rtl8139_private *tp = |
| 1602 | container_of(work, struct rtl8139_private, thread.work); |
| 1603 | struct net_device *dev = tp->mii.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 | 83cbb4d | 2007-02-15 23:37:44 +0100 | [diff] [blame] | 1606 | rtnl_lock(); |
| 1607 | |
| 1608 | if (!netif_running(dev)) |
| 1609 | goto out_unlock; |
| 1610 | |
Francois Romieu | 371e8bc | 2006-01-31 01:04:33 +0100 | [diff] [blame] | 1611 | if (tp->watchdog_fired) { |
| 1612 | tp->watchdog_fired = 0; |
David Howells | c402895 | 2006-11-22 14:57:56 +0000 | [diff] [blame] | 1613 | rtl8139_tx_timeout_task(work); |
Francois Romieu | 83cbb4d | 2007-02-15 23:37:44 +0100 | [diff] [blame] | 1614 | } else |
| 1615 | rtl8139_thread_iter(dev, tp, tp->mmio_addr); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1616 | |
Francois Romieu | 83cbb4d | 2007-02-15 23:37:44 +0100 | [diff] [blame] | 1617 | if (tp->have_thread) |
| 1618 | schedule_delayed_work(&tp->thread, thr_delay); |
| 1619 | out_unlock: |
| 1620 | rtnl_unlock (); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1621 | } |
| 1622 | |
Jeff Garzik | a15e038 | 2005-10-31 07:59:37 -0500 | [diff] [blame] | 1623 | static void rtl8139_start_thread(struct rtl8139_private *tp) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1624 | { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1625 | tp->twistie = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1626 | if (tp->chipset == CH_8139_K) |
| 1627 | tp->twistie = 1; |
| 1628 | else if (tp->drv_flags & HAS_LNK_CHNG) |
| 1629 | return; |
| 1630 | |
Jeff Garzik | 38b492a | 2005-11-04 22:36:28 -0500 | [diff] [blame] | 1631 | tp->have_thread = 1; |
Francois Romieu | 83cbb4d | 2007-02-15 23:37:44 +0100 | [diff] [blame] | 1632 | tp->watchdog_fired = 0; |
Jeff Garzik | a15e038 | 2005-10-31 07:59:37 -0500 | [diff] [blame] | 1633 | |
| 1634 | schedule_delayed_work(&tp->thread, next_tick); |
| 1635 | } |
| 1636 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1637 | static inline void rtl8139_tx_clear (struct rtl8139_private *tp) |
| 1638 | { |
| 1639 | tp->cur_tx = 0; |
| 1640 | tp->dirty_tx = 0; |
| 1641 | |
| 1642 | /* XXX account for unsent Tx packets in tp->stats.tx_dropped */ |
| 1643 | } |
| 1644 | |
David Howells | c402895 | 2006-11-22 14:57:56 +0000 | [diff] [blame] | 1645 | static void rtl8139_tx_timeout_task (struct work_struct *work) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1646 | { |
David Howells | c402895 | 2006-11-22 14:57:56 +0000 | [diff] [blame] | 1647 | struct rtl8139_private *tp = |
| 1648 | container_of(work, struct rtl8139_private, thread.work); |
| 1649 | struct net_device *dev = tp->mii.dev; |
Pekka Enberg | 22f714b | 2005-05-12 19:38:47 -0400 | [diff] [blame] | 1650 | void __iomem *ioaddr = tp->mmio_addr; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1651 | int i; |
| 1652 | u8 tmp8; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1653 | |
| 1654 | printk (KERN_DEBUG "%s: Transmit timeout, status %2.2x %4.4x %4.4x " |
| 1655 | "media %2.2x.\n", dev->name, RTL_R8 (ChipCmd), |
| 1656 | RTL_R16(IntrStatus), RTL_R16(IntrMask), RTL_R8(MediaStatus)); |
| 1657 | /* Emit info to figure out what went wrong. */ |
| 1658 | printk (KERN_DEBUG "%s: Tx queue start entry %ld dirty entry %ld.\n", |
| 1659 | dev->name, tp->cur_tx, tp->dirty_tx); |
| 1660 | for (i = 0; i < NUM_TX_DESC; i++) |
| 1661 | printk (KERN_DEBUG "%s: Tx descriptor %d is %8.8lx.%s\n", |
| 1662 | dev->name, i, RTL_R32 (TxStatus0 + (i * 4)), |
| 1663 | i == tp->dirty_tx % NUM_TX_DESC ? |
| 1664 | " (queue head)" : ""); |
| 1665 | |
| 1666 | tp->xstats.tx_timeouts++; |
| 1667 | |
| 1668 | /* disable Tx ASAP, if not already */ |
| 1669 | tmp8 = RTL_R8 (ChipCmd); |
| 1670 | if (tmp8 & CmdTxEnb) |
| 1671 | RTL_W8 (ChipCmd, CmdRxEnb); |
| 1672 | |
Francois Romieu | 371e8bc | 2006-01-31 01:04:33 +0100 | [diff] [blame] | 1673 | spin_lock_bh(&tp->rx_lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1674 | /* Disable interrupts by clearing the interrupt mask. */ |
| 1675 | RTL_W16 (IntrMask, 0x0000); |
| 1676 | |
| 1677 | /* Stop a shared interrupt from scavenging while we are. */ |
Francois Romieu | 371e8bc | 2006-01-31 01:04:33 +0100 | [diff] [blame] | 1678 | spin_lock_irq(&tp->lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1679 | rtl8139_tx_clear (tp); |
Francois Romieu | 371e8bc | 2006-01-31 01:04:33 +0100 | [diff] [blame] | 1680 | spin_unlock_irq(&tp->lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1681 | |
| 1682 | /* ...and finally, reset everything */ |
| 1683 | if (netif_running(dev)) { |
| 1684 | rtl8139_hw_start (dev); |
| 1685 | netif_wake_queue (dev); |
| 1686 | } |
Francois Romieu | 371e8bc | 2006-01-31 01:04:33 +0100 | [diff] [blame] | 1687 | spin_unlock_bh(&tp->rx_lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1688 | } |
| 1689 | |
Francois Romieu | 371e8bc | 2006-01-31 01:04:33 +0100 | [diff] [blame] | 1690 | static void rtl8139_tx_timeout (struct net_device *dev) |
| 1691 | { |
| 1692 | struct rtl8139_private *tp = netdev_priv(dev); |
| 1693 | |
Francois Romieu | 83cbb4d | 2007-02-15 23:37:44 +0100 | [diff] [blame] | 1694 | tp->watchdog_fired = 1; |
Francois Romieu | 371e8bc | 2006-01-31 01:04:33 +0100 | [diff] [blame] | 1695 | if (!tp->have_thread) { |
Francois Romieu | 83cbb4d | 2007-02-15 23:37:44 +0100 | [diff] [blame] | 1696 | INIT_DELAYED_WORK(&tp->thread, rtl8139_thread); |
Francois Romieu | 371e8bc | 2006-01-31 01:04:33 +0100 | [diff] [blame] | 1697 | schedule_delayed_work(&tp->thread, next_tick); |
Francois Romieu | 83cbb4d | 2007-02-15 23:37:44 +0100 | [diff] [blame] | 1698 | } |
Francois Romieu | 371e8bc | 2006-01-31 01:04:33 +0100 | [diff] [blame] | 1699 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1700 | |
| 1701 | static int rtl8139_start_xmit (struct sk_buff *skb, struct net_device *dev) |
| 1702 | { |
| 1703 | struct rtl8139_private *tp = netdev_priv(dev); |
Pekka Enberg | 22f714b | 2005-05-12 19:38:47 -0400 | [diff] [blame] | 1704 | void __iomem *ioaddr = tp->mmio_addr; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1705 | unsigned int entry; |
| 1706 | unsigned int len = skb->len; |
Arjan van de Ven | bce305f | 2006-07-05 15:00:40 +0200 | [diff] [blame] | 1707 | unsigned long flags; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1708 | |
| 1709 | /* Calculate the next Tx descriptor entry. */ |
| 1710 | entry = tp->cur_tx % NUM_TX_DESC; |
| 1711 | |
| 1712 | /* Note: the chip doesn't have auto-pad! */ |
| 1713 | if (likely(len < TX_BUF_SIZE)) { |
| 1714 | if (len < ETH_ZLEN) |
| 1715 | memset(tp->tx_buf[entry], 0, ETH_ZLEN); |
| 1716 | skb_copy_and_csum_dev(skb, tp->tx_buf[entry]); |
| 1717 | dev_kfree_skb(skb); |
| 1718 | } else { |
| 1719 | dev_kfree_skb(skb); |
Paulius Zaleckas | e1eac92 | 2008-05-05 16:24:21 +0300 | [diff] [blame] | 1720 | dev->stats.tx_dropped++; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1721 | return 0; |
| 1722 | } |
| 1723 | |
Arjan van de Ven | bce305f | 2006-07-05 15:00:40 +0200 | [diff] [blame] | 1724 | spin_lock_irqsave(&tp->lock, flags); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1725 | RTL_W32_F (TxStatus0 + (entry * sizeof (u32)), |
| 1726 | tp->tx_flag | max(len, (unsigned int)ETH_ZLEN)); |
| 1727 | |
| 1728 | dev->trans_start = jiffies; |
| 1729 | |
| 1730 | tp->cur_tx++; |
| 1731 | wmb(); |
| 1732 | |
| 1733 | if ((tp->cur_tx - NUM_TX_DESC) == tp->dirty_tx) |
| 1734 | netif_stop_queue (dev); |
Arjan van de Ven | bce305f | 2006-07-05 15:00:40 +0200 | [diff] [blame] | 1735 | spin_unlock_irqrestore(&tp->lock, flags); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1736 | |
| 1737 | if (netif_msg_tx_queued(tp)) |
| 1738 | printk (KERN_DEBUG "%s: Queued Tx packet size %u to slot %d.\n", |
| 1739 | dev->name, len, entry); |
| 1740 | |
| 1741 | return 0; |
| 1742 | } |
| 1743 | |
| 1744 | |
| 1745 | static void rtl8139_tx_interrupt (struct net_device *dev, |
| 1746 | struct rtl8139_private *tp, |
Pekka Enberg | 22f714b | 2005-05-12 19:38:47 -0400 | [diff] [blame] | 1747 | void __iomem *ioaddr) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1748 | { |
| 1749 | unsigned long dirty_tx, tx_left; |
| 1750 | |
| 1751 | assert (dev != NULL); |
| 1752 | assert (ioaddr != NULL); |
| 1753 | |
| 1754 | dirty_tx = tp->dirty_tx; |
| 1755 | tx_left = tp->cur_tx - dirty_tx; |
| 1756 | while (tx_left > 0) { |
| 1757 | int entry = dirty_tx % NUM_TX_DESC; |
| 1758 | int txstatus; |
| 1759 | |
| 1760 | txstatus = RTL_R32 (TxStatus0 + (entry * sizeof (u32))); |
| 1761 | |
| 1762 | if (!(txstatus & (TxStatOK | TxUnderrun | TxAborted))) |
| 1763 | break; /* It still hasn't been Txed */ |
| 1764 | |
| 1765 | /* Note: TxCarrierLost is always asserted at 100mbps. */ |
| 1766 | if (txstatus & (TxOutOfWindow | TxAborted)) { |
| 1767 | /* There was an major error, log it. */ |
| 1768 | if (netif_msg_tx_err(tp)) |
| 1769 | printk(KERN_DEBUG "%s: Transmit error, Tx status %8.8x.\n", |
| 1770 | dev->name, txstatus); |
Paulius Zaleckas | e1eac92 | 2008-05-05 16:24:21 +0300 | [diff] [blame] | 1771 | dev->stats.tx_errors++; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1772 | if (txstatus & TxAborted) { |
Paulius Zaleckas | e1eac92 | 2008-05-05 16:24:21 +0300 | [diff] [blame] | 1773 | dev->stats.tx_aborted_errors++; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1774 | RTL_W32 (TxConfig, TxClearAbt); |
| 1775 | RTL_W16 (IntrStatus, TxErr); |
| 1776 | wmb(); |
| 1777 | } |
| 1778 | if (txstatus & TxCarrierLost) |
Paulius Zaleckas | e1eac92 | 2008-05-05 16:24:21 +0300 | [diff] [blame] | 1779 | dev->stats.tx_carrier_errors++; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1780 | if (txstatus & TxOutOfWindow) |
Paulius Zaleckas | e1eac92 | 2008-05-05 16:24:21 +0300 | [diff] [blame] | 1781 | dev->stats.tx_window_errors++; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1782 | } else { |
| 1783 | if (txstatus & TxUnderrun) { |
| 1784 | /* Add 64 to the Tx FIFO threshold. */ |
| 1785 | if (tp->tx_flag < 0x00300000) |
| 1786 | tp->tx_flag += 0x00020000; |
Paulius Zaleckas | e1eac92 | 2008-05-05 16:24:21 +0300 | [diff] [blame] | 1787 | dev->stats.tx_fifo_errors++; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1788 | } |
Paulius Zaleckas | e1eac92 | 2008-05-05 16:24:21 +0300 | [diff] [blame] | 1789 | dev->stats.collisions += (txstatus >> 24) & 15; |
| 1790 | dev->stats.tx_bytes += txstatus & 0x7ff; |
| 1791 | dev->stats.tx_packets++; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1792 | } |
| 1793 | |
| 1794 | dirty_tx++; |
| 1795 | tx_left--; |
| 1796 | } |
| 1797 | |
| 1798 | #ifndef RTL8139_NDEBUG |
| 1799 | if (tp->cur_tx - dirty_tx > NUM_TX_DESC) { |
| 1800 | printk (KERN_ERR "%s: Out-of-sync dirty pointer, %ld vs. %ld.\n", |
| 1801 | dev->name, dirty_tx, tp->cur_tx); |
| 1802 | dirty_tx += NUM_TX_DESC; |
| 1803 | } |
| 1804 | #endif /* RTL8139_NDEBUG */ |
| 1805 | |
| 1806 | /* only wake the queue if we did work, and the queue is stopped */ |
| 1807 | if (tp->dirty_tx != dirty_tx) { |
| 1808 | tp->dirty_tx = dirty_tx; |
| 1809 | mb(); |
| 1810 | netif_wake_queue (dev); |
| 1811 | } |
| 1812 | } |
| 1813 | |
| 1814 | |
| 1815 | /* TODO: clean this up! Rx reset need not be this intensive */ |
| 1816 | static void rtl8139_rx_err (u32 rx_status, struct net_device *dev, |
Pekka Enberg | 22f714b | 2005-05-12 19:38:47 -0400 | [diff] [blame] | 1817 | struct rtl8139_private *tp, void __iomem *ioaddr) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1818 | { |
| 1819 | u8 tmp8; |
| 1820 | #ifdef CONFIG_8139_OLD_RX_RESET |
| 1821 | int tmp_work; |
| 1822 | #endif |
| 1823 | |
Jeff Garzik | f3b197a | 2006-05-26 21:39:03 -0400 | [diff] [blame] | 1824 | if (netif_msg_rx_err (tp)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1825 | printk(KERN_DEBUG "%s: Ethernet frame had errors, status %8.8x.\n", |
| 1826 | dev->name, rx_status); |
Paulius Zaleckas | e1eac92 | 2008-05-05 16:24:21 +0300 | [diff] [blame] | 1827 | dev->stats.rx_errors++; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1828 | if (!(rx_status & RxStatusOK)) { |
| 1829 | if (rx_status & RxTooLong) { |
| 1830 | DPRINTK ("%s: Oversized Ethernet frame, status %4.4x!\n", |
| 1831 | dev->name, rx_status); |
| 1832 | /* A.C.: The chip hangs here. */ |
| 1833 | } |
| 1834 | if (rx_status & (RxBadSymbol | RxBadAlign)) |
Paulius Zaleckas | e1eac92 | 2008-05-05 16:24:21 +0300 | [diff] [blame] | 1835 | dev->stats.rx_frame_errors++; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1836 | if (rx_status & (RxRunt | RxTooLong)) |
Paulius Zaleckas | e1eac92 | 2008-05-05 16:24:21 +0300 | [diff] [blame] | 1837 | dev->stats.rx_length_errors++; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1838 | if (rx_status & RxCRCErr) |
Paulius Zaleckas | e1eac92 | 2008-05-05 16:24:21 +0300 | [diff] [blame] | 1839 | dev->stats.rx_crc_errors++; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1840 | } else { |
| 1841 | tp->xstats.rx_lost_in_ring++; |
| 1842 | } |
| 1843 | |
| 1844 | #ifndef CONFIG_8139_OLD_RX_RESET |
| 1845 | tmp8 = RTL_R8 (ChipCmd); |
| 1846 | RTL_W8 (ChipCmd, tmp8 & ~CmdRxEnb); |
| 1847 | RTL_W8 (ChipCmd, tmp8); |
| 1848 | RTL_W32 (RxConfig, tp->rx_config); |
| 1849 | tp->cur_rx = 0; |
| 1850 | #else |
| 1851 | /* Reset the receiver, based on RealTek recommendation. (Bug?) */ |
| 1852 | |
| 1853 | /* disable receive */ |
| 1854 | RTL_W8_F (ChipCmd, CmdTxEnb); |
| 1855 | tmp_work = 200; |
| 1856 | while (--tmp_work > 0) { |
| 1857 | udelay(1); |
| 1858 | tmp8 = RTL_R8 (ChipCmd); |
| 1859 | if (!(tmp8 & CmdRxEnb)) |
| 1860 | break; |
| 1861 | } |
| 1862 | if (tmp_work <= 0) |
| 1863 | printk (KERN_WARNING PFX "rx stop wait too long\n"); |
| 1864 | /* restart receive */ |
| 1865 | tmp_work = 200; |
| 1866 | while (--tmp_work > 0) { |
| 1867 | RTL_W8_F (ChipCmd, CmdRxEnb | CmdTxEnb); |
| 1868 | udelay(1); |
| 1869 | tmp8 = RTL_R8 (ChipCmd); |
| 1870 | if ((tmp8 & CmdRxEnb) && (tmp8 & CmdTxEnb)) |
| 1871 | break; |
| 1872 | } |
| 1873 | if (tmp_work <= 0) |
| 1874 | printk (KERN_WARNING PFX "tx/rx enable wait too long\n"); |
| 1875 | |
| 1876 | /* and reinitialize all rx related registers */ |
| 1877 | RTL_W8_F (Cfg9346, Cfg9346_Unlock); |
| 1878 | /* Must enable Tx/Rx before setting transfer thresholds! */ |
| 1879 | RTL_W8 (ChipCmd, CmdRxEnb | CmdTxEnb); |
| 1880 | |
| 1881 | tp->rx_config = rtl8139_rx_config | AcceptBroadcast | AcceptMyPhys; |
| 1882 | RTL_W32 (RxConfig, tp->rx_config); |
| 1883 | tp->cur_rx = 0; |
| 1884 | |
| 1885 | DPRINTK("init buffer addresses\n"); |
| 1886 | |
| 1887 | /* Lock Config[01234] and BMCR register writes */ |
| 1888 | RTL_W8 (Cfg9346, Cfg9346_Lock); |
| 1889 | |
| 1890 | /* init Rx ring buffer DMA address */ |
| 1891 | RTL_W32_F (RxBuf, tp->rx_ring_dma); |
| 1892 | |
| 1893 | /* A.C.: Reset the multicast list. */ |
| 1894 | __set_rx_mode (dev); |
| 1895 | #endif |
| 1896 | } |
| 1897 | |
| 1898 | #if RX_BUF_IDX == 3 |
Márton Németh | a9879c4 | 2008-06-15 09:52:30 +0200 | [diff] [blame] | 1899 | static inline void wrap_copy(struct sk_buff *skb, const unsigned char *ring, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1900 | u32 offset, unsigned int size) |
| 1901 | { |
| 1902 | u32 left = RX_BUF_LEN - offset; |
| 1903 | |
| 1904 | if (size > left) { |
Arnaldo Carvalho de Melo | 27d7ff4 | 2007-03-31 11:55:19 -0300 | [diff] [blame] | 1905 | skb_copy_to_linear_data(skb, ring + offset, left); |
| 1906 | skb_copy_to_linear_data_offset(skb, left, ring, size - left); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1907 | } else |
Arnaldo Carvalho de Melo | 27d7ff4 | 2007-03-31 11:55:19 -0300 | [diff] [blame] | 1908 | skb_copy_to_linear_data(skb, ring + offset, size); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1909 | } |
| 1910 | #endif |
| 1911 | |
| 1912 | static void rtl8139_isr_ack(struct rtl8139_private *tp) |
| 1913 | { |
Pekka Enberg | 22f714b | 2005-05-12 19:38:47 -0400 | [diff] [blame] | 1914 | void __iomem *ioaddr = tp->mmio_addr; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1915 | u16 status; |
| 1916 | |
| 1917 | status = RTL_R16 (IntrStatus) & RxAckBits; |
| 1918 | |
| 1919 | /* Clear out errors and receive interrupts */ |
| 1920 | if (likely(status != 0)) { |
| 1921 | if (unlikely(status & (RxFIFOOver | RxOverflow))) { |
Paulius Zaleckas | e1eac92 | 2008-05-05 16:24:21 +0300 | [diff] [blame] | 1922 | tp->dev->stats.rx_errors++; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1923 | if (status & RxFIFOOver) |
Paulius Zaleckas | e1eac92 | 2008-05-05 16:24:21 +0300 | [diff] [blame] | 1924 | tp->dev->stats.rx_fifo_errors++; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1925 | } |
| 1926 | RTL_W16_F (IntrStatus, RxAckBits); |
| 1927 | } |
| 1928 | } |
| 1929 | |
| 1930 | static int rtl8139_rx(struct net_device *dev, struct rtl8139_private *tp, |
| 1931 | int budget) |
| 1932 | { |
Pekka Enberg | 22f714b | 2005-05-12 19:38:47 -0400 | [diff] [blame] | 1933 | void __iomem *ioaddr = tp->mmio_addr; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1934 | int received = 0; |
| 1935 | unsigned char *rx_ring = tp->rx_ring; |
| 1936 | unsigned int cur_rx = tp->cur_rx; |
| 1937 | unsigned int rx_size = 0; |
| 1938 | |
| 1939 | DPRINTK ("%s: In rtl8139_rx(), current %4.4x BufAddr %4.4x," |
| 1940 | " free to %4.4x, Cmd %2.2x.\n", dev->name, (u16)cur_rx, |
| 1941 | RTL_R16 (RxBufAddr), |
| 1942 | RTL_R16 (RxBufPtr), RTL_R8 (ChipCmd)); |
| 1943 | |
Jeff Garzik | f3b197a | 2006-05-26 21:39:03 -0400 | [diff] [blame] | 1944 | while (netif_running(dev) && received < budget |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1945 | && (RTL_R8 (ChipCmd) & RxBufEmpty) == 0) { |
| 1946 | u32 ring_offset = cur_rx % RX_BUF_LEN; |
| 1947 | u32 rx_status; |
| 1948 | unsigned int pkt_size; |
| 1949 | struct sk_buff *skb; |
| 1950 | |
| 1951 | rmb(); |
| 1952 | |
| 1953 | /* read size+status of next frame from DMA ring buffer */ |
Al Viro | eca1ad8 | 2008-03-16 22:21:54 +0000 | [diff] [blame] | 1954 | rx_status = le32_to_cpu (*(__le32 *) (rx_ring + ring_offset)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1955 | rx_size = rx_status >> 16; |
| 1956 | pkt_size = rx_size - 4; |
| 1957 | |
| 1958 | if (netif_msg_rx_status(tp)) |
| 1959 | printk(KERN_DEBUG "%s: rtl8139_rx() status %4.4x, size %4.4x," |
| 1960 | " cur %4.4x.\n", dev->name, rx_status, |
| 1961 | rx_size, cur_rx); |
| 1962 | #if RTL8139_DEBUG > 2 |
| 1963 | { |
| 1964 | int i; |
| 1965 | DPRINTK ("%s: Frame contents ", dev->name); |
| 1966 | for (i = 0; i < 70; i++) |
| 1967 | printk (" %2.2x", |
| 1968 | rx_ring[ring_offset + i]); |
| 1969 | printk (".\n"); |
| 1970 | } |
| 1971 | #endif |
| 1972 | |
| 1973 | /* Packet copy from FIFO still in progress. |
| 1974 | * Theoretically, this should never happen |
| 1975 | * since EarlyRx is disabled. |
| 1976 | */ |
| 1977 | if (unlikely(rx_size == 0xfff0)) { |
| 1978 | if (!tp->fifo_copy_timeout) |
| 1979 | tp->fifo_copy_timeout = jiffies + 2; |
| 1980 | else if (time_after(jiffies, tp->fifo_copy_timeout)) { |
| 1981 | DPRINTK ("%s: hung FIFO. Reset.", dev->name); |
| 1982 | rx_size = 0; |
| 1983 | goto no_early_rx; |
| 1984 | } |
| 1985 | if (netif_msg_intr(tp)) { |
| 1986 | printk(KERN_DEBUG "%s: fifo copy in progress.", |
| 1987 | dev->name); |
| 1988 | } |
| 1989 | tp->xstats.early_rx++; |
| 1990 | break; |
| 1991 | } |
| 1992 | |
| 1993 | no_early_rx: |
| 1994 | tp->fifo_copy_timeout = 0; |
| 1995 | |
| 1996 | /* If Rx err or invalid rx_size/rx_status received |
| 1997 | * (which happens if we get lost in the ring), |
| 1998 | * Rx process gets reset, so we abort any further |
| 1999 | * Rx processing. |
| 2000 | */ |
| 2001 | if (unlikely((rx_size > (MAX_ETH_FRAME_SIZE+4)) || |
| 2002 | (rx_size < 8) || |
| 2003 | (!(rx_status & RxStatusOK)))) { |
| 2004 | rtl8139_rx_err (rx_status, dev, tp, ioaddr); |
| 2005 | received = -1; |
| 2006 | goto out; |
| 2007 | } |
| 2008 | |
| 2009 | /* Malloc up new buffer, compatible with net-2e. */ |
| 2010 | /* Omit the four octet CRC from the length. */ |
| 2011 | |
| 2012 | skb = dev_alloc_skb (pkt_size + 2); |
| 2013 | if (likely(skb)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2014 | skb_reserve (skb, 2); /* 16 byte align the IP fields. */ |
| 2015 | #if RX_BUF_IDX == 3 |
| 2016 | wrap_copy(skb, rx_ring, ring_offset+4, pkt_size); |
| 2017 | #else |
David S. Miller | 8c7b7fa | 2007-07-10 22:08:12 -0700 | [diff] [blame] | 2018 | skb_copy_to_linear_data (skb, &rx_ring[ring_offset + 4], pkt_size); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2019 | #endif |
| 2020 | skb_put (skb, pkt_size); |
| 2021 | |
| 2022 | skb->protocol = eth_type_trans (skb, dev); |
| 2023 | |
| 2024 | dev->last_rx = jiffies; |
Paulius Zaleckas | e1eac92 | 2008-05-05 16:24:21 +0300 | [diff] [blame] | 2025 | dev->stats.rx_bytes += pkt_size; |
| 2026 | dev->stats.rx_packets++; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2027 | |
| 2028 | netif_receive_skb (skb); |
| 2029 | } else { |
Jeff Garzik | f3b197a | 2006-05-26 21:39:03 -0400 | [diff] [blame] | 2030 | if (net_ratelimit()) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2031 | printk (KERN_WARNING |
| 2032 | "%s: Memory squeeze, dropping packet.\n", |
| 2033 | dev->name); |
Paulius Zaleckas | e1eac92 | 2008-05-05 16:24:21 +0300 | [diff] [blame] | 2034 | dev->stats.rx_dropped++; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2035 | } |
| 2036 | received++; |
| 2037 | |
| 2038 | cur_rx = (cur_rx + rx_size + 4 + 3) & ~3; |
| 2039 | RTL_W16 (RxBufPtr, (u16) (cur_rx - 16)); |
| 2040 | |
| 2041 | rtl8139_isr_ack(tp); |
| 2042 | } |
| 2043 | |
| 2044 | if (unlikely(!received || rx_size == 0xfff0)) |
| 2045 | rtl8139_isr_ack(tp); |
| 2046 | |
| 2047 | #if RTL8139_DEBUG > 1 |
| 2048 | DPRINTK ("%s: Done rtl8139_rx(), current %4.4x BufAddr %4.4x," |
| 2049 | " free to %4.4x, Cmd %2.2x.\n", dev->name, cur_rx, |
| 2050 | RTL_R16 (RxBufAddr), |
| 2051 | RTL_R16 (RxBufPtr), RTL_R8 (ChipCmd)); |
| 2052 | #endif |
| 2053 | |
| 2054 | tp->cur_rx = cur_rx; |
| 2055 | |
| 2056 | /* |
| 2057 | * The receive buffer should be mostly empty. |
| 2058 | * Tell NAPI to reenable the Rx irq. |
| 2059 | */ |
| 2060 | if (tp->fifo_copy_timeout) |
| 2061 | received = budget; |
| 2062 | |
| 2063 | out: |
| 2064 | return received; |
| 2065 | } |
| 2066 | |
| 2067 | |
| 2068 | static void rtl8139_weird_interrupt (struct net_device *dev, |
| 2069 | struct rtl8139_private *tp, |
Pekka Enberg | 22f714b | 2005-05-12 19:38:47 -0400 | [diff] [blame] | 2070 | void __iomem *ioaddr, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2071 | int status, int link_changed) |
| 2072 | { |
| 2073 | DPRINTK ("%s: Abnormal interrupt, status %8.8x.\n", |
| 2074 | dev->name, status); |
| 2075 | |
| 2076 | assert (dev != NULL); |
| 2077 | assert (tp != NULL); |
| 2078 | assert (ioaddr != NULL); |
| 2079 | |
| 2080 | /* Update the error count. */ |
Paulius Zaleckas | e1eac92 | 2008-05-05 16:24:21 +0300 | [diff] [blame] | 2081 | dev->stats.rx_missed_errors += RTL_R32 (RxMissed); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2082 | RTL_W32 (RxMissed, 0); |
| 2083 | |
| 2084 | if ((status & RxUnderrun) && link_changed && |
| 2085 | (tp->drv_flags & HAS_LNK_CHNG)) { |
| 2086 | rtl_check_media(dev, 0); |
| 2087 | status &= ~RxUnderrun; |
| 2088 | } |
| 2089 | |
| 2090 | if (status & (RxUnderrun | RxErr)) |
Paulius Zaleckas | e1eac92 | 2008-05-05 16:24:21 +0300 | [diff] [blame] | 2091 | dev->stats.rx_errors++; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2092 | |
| 2093 | if (status & PCSTimeout) |
Paulius Zaleckas | e1eac92 | 2008-05-05 16:24:21 +0300 | [diff] [blame] | 2094 | dev->stats.rx_length_errors++; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2095 | if (status & RxUnderrun) |
Paulius Zaleckas | e1eac92 | 2008-05-05 16:24:21 +0300 | [diff] [blame] | 2096 | dev->stats.rx_fifo_errors++; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2097 | if (status & PCIErr) { |
| 2098 | u16 pci_cmd_status; |
| 2099 | pci_read_config_word (tp->pci_dev, PCI_STATUS, &pci_cmd_status); |
| 2100 | pci_write_config_word (tp->pci_dev, PCI_STATUS, pci_cmd_status); |
| 2101 | |
| 2102 | printk (KERN_ERR "%s: PCI Bus error %4.4x.\n", |
| 2103 | dev->name, pci_cmd_status); |
| 2104 | } |
| 2105 | } |
| 2106 | |
Stephen Hemminger | bea3348 | 2007-10-03 16:41:36 -0700 | [diff] [blame] | 2107 | static int rtl8139_poll(struct napi_struct *napi, int budget) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2108 | { |
Stephen Hemminger | bea3348 | 2007-10-03 16:41:36 -0700 | [diff] [blame] | 2109 | struct rtl8139_private *tp = container_of(napi, struct rtl8139_private, napi); |
| 2110 | struct net_device *dev = tp->dev; |
Pekka Enberg | 22f714b | 2005-05-12 19:38:47 -0400 | [diff] [blame] | 2111 | void __iomem *ioaddr = tp->mmio_addr; |
Stephen Hemminger | bea3348 | 2007-10-03 16:41:36 -0700 | [diff] [blame] | 2112 | int work_done; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2113 | |
| 2114 | spin_lock(&tp->rx_lock); |
Stephen Hemminger | bea3348 | 2007-10-03 16:41:36 -0700 | [diff] [blame] | 2115 | work_done = 0; |
| 2116 | if (likely(RTL_R16(IntrStatus) & RxAckBits)) |
| 2117 | work_done += rtl8139_rx(dev, tp, budget); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2118 | |
Stephen Hemminger | bea3348 | 2007-10-03 16:41:36 -0700 | [diff] [blame] | 2119 | if (work_done < budget) { |
Ingo Molnar | b57bd06 | 2006-12-12 13:49:35 +0100 | [diff] [blame] | 2120 | unsigned long flags; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2121 | /* |
| 2122 | * Order is important since data can get interrupted |
| 2123 | * again when we think we are done. |
| 2124 | */ |
Stephen Hemminger | bea3348 | 2007-10-03 16:41:36 -0700 | [diff] [blame] | 2125 | spin_lock_irqsave(&tp->lock, flags); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2126 | RTL_W16_F(IntrMask, rtl8139_intr_mask); |
Stephen Hemminger | bea3348 | 2007-10-03 16:41:36 -0700 | [diff] [blame] | 2127 | __netif_rx_complete(dev, napi); |
| 2128 | spin_unlock_irqrestore(&tp->lock, flags); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2129 | } |
| 2130 | spin_unlock(&tp->rx_lock); |
| 2131 | |
Stephen Hemminger | bea3348 | 2007-10-03 16:41:36 -0700 | [diff] [blame] | 2132 | return work_done; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2133 | } |
| 2134 | |
| 2135 | /* The interrupt handler does all of the Rx thread work and cleans up |
| 2136 | after the Tx thread. */ |
David Howells | 7d12e78 | 2006-10-05 14:55:46 +0100 | [diff] [blame] | 2137 | static irqreturn_t rtl8139_interrupt (int irq, void *dev_instance) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2138 | { |
| 2139 | struct net_device *dev = (struct net_device *) dev_instance; |
| 2140 | struct rtl8139_private *tp = netdev_priv(dev); |
Pekka Enberg | 22f714b | 2005-05-12 19:38:47 -0400 | [diff] [blame] | 2141 | void __iomem *ioaddr = tp->mmio_addr; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2142 | u16 status, ackstat; |
| 2143 | int link_changed = 0; /* avoid bogus "uninit" warning */ |
| 2144 | int handled = 0; |
| 2145 | |
| 2146 | spin_lock (&tp->lock); |
| 2147 | status = RTL_R16 (IntrStatus); |
| 2148 | |
| 2149 | /* shared irq? */ |
Jeff Garzik | f3b197a | 2006-05-26 21:39:03 -0400 | [diff] [blame] | 2150 | if (unlikely((status & rtl8139_intr_mask) == 0)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2151 | goto out; |
| 2152 | |
| 2153 | handled = 1; |
| 2154 | |
| 2155 | /* h/w no longer present (hotplug?) or major error, bail */ |
Jeff Garzik | f3b197a | 2006-05-26 21:39:03 -0400 | [diff] [blame] | 2156 | if (unlikely(status == 0xFFFF)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2157 | goto out; |
| 2158 | |
| 2159 | /* close possible race's with dev_close */ |
| 2160 | if (unlikely(!netif_running(dev))) { |
| 2161 | RTL_W16 (IntrMask, 0); |
| 2162 | goto out; |
| 2163 | } |
| 2164 | |
| 2165 | /* Acknowledge all of the current interrupt sources ASAP, but |
| 2166 | an first get an additional status bit from CSCR. */ |
| 2167 | if (unlikely(status & RxUnderrun)) |
| 2168 | link_changed = RTL_R16 (CSCR) & CSCR_LinkChangeBit; |
| 2169 | |
| 2170 | ackstat = status & ~(RxAckBits | TxErr); |
| 2171 | if (ackstat) |
| 2172 | RTL_W16 (IntrStatus, ackstat); |
| 2173 | |
| 2174 | /* Receive packets are processed by poll routine. |
| 2175 | If not running start it now. */ |
| 2176 | if (status & RxAckBits){ |
Stephen Hemminger | bea3348 | 2007-10-03 16:41:36 -0700 | [diff] [blame] | 2177 | if (netif_rx_schedule_prep(dev, &tp->napi)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2178 | RTL_W16_F (IntrMask, rtl8139_norx_intr_mask); |
Stephen Hemminger | bea3348 | 2007-10-03 16:41:36 -0700 | [diff] [blame] | 2179 | __netif_rx_schedule(dev, &tp->napi); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2180 | } |
| 2181 | } |
| 2182 | |
| 2183 | /* Check uncommon events with one test. */ |
| 2184 | if (unlikely(status & (PCIErr | PCSTimeout | RxUnderrun | RxErr))) |
| 2185 | rtl8139_weird_interrupt (dev, tp, ioaddr, |
| 2186 | status, link_changed); |
| 2187 | |
| 2188 | if (status & (TxOK | TxErr)) { |
| 2189 | rtl8139_tx_interrupt (dev, tp, ioaddr); |
| 2190 | if (status & TxErr) |
| 2191 | RTL_W16 (IntrStatus, TxErr); |
| 2192 | } |
| 2193 | out: |
| 2194 | spin_unlock (&tp->lock); |
| 2195 | |
| 2196 | DPRINTK ("%s: exiting interrupt, intr_status=%#4.4x.\n", |
| 2197 | dev->name, RTL_R16 (IntrStatus)); |
| 2198 | return IRQ_RETVAL(handled); |
| 2199 | } |
| 2200 | |
| 2201 | #ifdef CONFIG_NET_POLL_CONTROLLER |
| 2202 | /* |
| 2203 | * Polling receive - used by netconsole and other diagnostic tools |
| 2204 | * to allow network i/o with interrupts disabled. |
| 2205 | */ |
| 2206 | static void rtl8139_poll_controller(struct net_device *dev) |
| 2207 | { |
| 2208 | disable_irq(dev->irq); |
David Howells | 7d12e78 | 2006-10-05 14:55:46 +0100 | [diff] [blame] | 2209 | rtl8139_interrupt(dev->irq, dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2210 | enable_irq(dev->irq); |
| 2211 | } |
| 2212 | #endif |
| 2213 | |
| 2214 | static int rtl8139_close (struct net_device *dev) |
| 2215 | { |
| 2216 | struct rtl8139_private *tp = netdev_priv(dev); |
Pekka Enberg | 22f714b | 2005-05-12 19:38:47 -0400 | [diff] [blame] | 2217 | void __iomem *ioaddr = tp->mmio_addr; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2218 | unsigned long flags; |
| 2219 | |
Stephen Hemminger | bea3348 | 2007-10-03 16:41:36 -0700 | [diff] [blame] | 2220 | netif_stop_queue(dev); |
| 2221 | napi_disable(&tp->napi); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2222 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2223 | if (netif_msg_ifdown(tp)) |
| 2224 | printk(KERN_DEBUG "%s: Shutting down ethercard, status was 0x%4.4x.\n", |
| 2225 | dev->name, RTL_R16 (IntrStatus)); |
| 2226 | |
| 2227 | spin_lock_irqsave (&tp->lock, flags); |
| 2228 | |
| 2229 | /* Stop the chip's Tx and Rx DMA processes. */ |
| 2230 | RTL_W8 (ChipCmd, 0); |
| 2231 | |
| 2232 | /* Disable interrupts by clearing the interrupt mask. */ |
| 2233 | RTL_W16 (IntrMask, 0); |
| 2234 | |
| 2235 | /* Update the error counts. */ |
Paulius Zaleckas | e1eac92 | 2008-05-05 16:24:21 +0300 | [diff] [blame] | 2236 | dev->stats.rx_missed_errors += RTL_R32 (RxMissed); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2237 | RTL_W32 (RxMissed, 0); |
| 2238 | |
| 2239 | spin_unlock_irqrestore (&tp->lock, flags); |
| 2240 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2241 | free_irq (dev->irq, dev); |
| 2242 | |
| 2243 | rtl8139_tx_clear (tp); |
| 2244 | |
Jeff Garzik | 6cc92cd | 2007-08-08 02:16:04 -0400 | [diff] [blame] | 2245 | dma_free_coherent(&tp->pci_dev->dev, RX_BUF_TOT_LEN, |
| 2246 | tp->rx_ring, tp->rx_ring_dma); |
| 2247 | dma_free_coherent(&tp->pci_dev->dev, TX_BUF_TOT_LEN, |
| 2248 | tp->tx_bufs, tp->tx_bufs_dma); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2249 | tp->rx_ring = NULL; |
| 2250 | tp->tx_bufs = NULL; |
| 2251 | |
| 2252 | /* Green! Put the chip in low-power mode. */ |
| 2253 | RTL_W8 (Cfg9346, Cfg9346_Unlock); |
| 2254 | |
| 2255 | if (rtl_chip_info[tp->chipset].flags & HasHltClk) |
| 2256 | RTL_W8 (HltClk, 'H'); /* 'R' would leave the clock running. */ |
| 2257 | |
| 2258 | return 0; |
| 2259 | } |
| 2260 | |
| 2261 | |
| 2262 | /* Get the ethtool Wake-on-LAN settings. Assumes that wol points to |
| 2263 | kernel memory, *wol has been initialized as {ETHTOOL_GWOL}, and |
| 2264 | other threads or interrupts aren't messing with the 8139. */ |
| 2265 | static void rtl8139_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol) |
| 2266 | { |
| 2267 | struct rtl8139_private *np = netdev_priv(dev); |
Pekka Enberg | 22f714b | 2005-05-12 19:38:47 -0400 | [diff] [blame] | 2268 | void __iomem *ioaddr = np->mmio_addr; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2269 | |
| 2270 | spin_lock_irq(&np->lock); |
| 2271 | if (rtl_chip_info[np->chipset].flags & HasLWake) { |
| 2272 | u8 cfg3 = RTL_R8 (Config3); |
| 2273 | u8 cfg5 = RTL_R8 (Config5); |
| 2274 | |
| 2275 | wol->supported = WAKE_PHY | WAKE_MAGIC |
| 2276 | | WAKE_UCAST | WAKE_MCAST | WAKE_BCAST; |
| 2277 | |
| 2278 | wol->wolopts = 0; |
| 2279 | if (cfg3 & Cfg3_LinkUp) |
| 2280 | wol->wolopts |= WAKE_PHY; |
| 2281 | if (cfg3 & Cfg3_Magic) |
| 2282 | wol->wolopts |= WAKE_MAGIC; |
| 2283 | /* (KON)FIXME: See how netdev_set_wol() handles the |
| 2284 | following constants. */ |
| 2285 | if (cfg5 & Cfg5_UWF) |
| 2286 | wol->wolopts |= WAKE_UCAST; |
| 2287 | if (cfg5 & Cfg5_MWF) |
| 2288 | wol->wolopts |= WAKE_MCAST; |
| 2289 | if (cfg5 & Cfg5_BWF) |
| 2290 | wol->wolopts |= WAKE_BCAST; |
| 2291 | } |
| 2292 | spin_unlock_irq(&np->lock); |
| 2293 | } |
| 2294 | |
| 2295 | |
| 2296 | /* Set the ethtool Wake-on-LAN settings. Return 0 or -errno. Assumes |
| 2297 | that wol points to kernel memory and other threads or interrupts |
| 2298 | aren't messing with the 8139. */ |
| 2299 | static int rtl8139_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol) |
| 2300 | { |
| 2301 | struct rtl8139_private *np = netdev_priv(dev); |
Pekka Enberg | 22f714b | 2005-05-12 19:38:47 -0400 | [diff] [blame] | 2302 | void __iomem *ioaddr = np->mmio_addr; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2303 | u32 support; |
| 2304 | u8 cfg3, cfg5; |
| 2305 | |
| 2306 | support = ((rtl_chip_info[np->chipset].flags & HasLWake) |
| 2307 | ? (WAKE_PHY | WAKE_MAGIC |
| 2308 | | WAKE_UCAST | WAKE_MCAST | WAKE_BCAST) |
| 2309 | : 0); |
| 2310 | if (wol->wolopts & ~support) |
| 2311 | return -EINVAL; |
| 2312 | |
| 2313 | spin_lock_irq(&np->lock); |
| 2314 | cfg3 = RTL_R8 (Config3) & ~(Cfg3_LinkUp | Cfg3_Magic); |
| 2315 | if (wol->wolopts & WAKE_PHY) |
| 2316 | cfg3 |= Cfg3_LinkUp; |
| 2317 | if (wol->wolopts & WAKE_MAGIC) |
| 2318 | cfg3 |= Cfg3_Magic; |
| 2319 | RTL_W8 (Cfg9346, Cfg9346_Unlock); |
| 2320 | RTL_W8 (Config3, cfg3); |
| 2321 | RTL_W8 (Cfg9346, Cfg9346_Lock); |
| 2322 | |
| 2323 | cfg5 = RTL_R8 (Config5) & ~(Cfg5_UWF | Cfg5_MWF | Cfg5_BWF); |
| 2324 | /* (KON)FIXME: These are untested. We may have to set the |
| 2325 | CRC0, Wakeup0 and LSBCRC0 registers too, but I have no |
| 2326 | documentation. */ |
| 2327 | if (wol->wolopts & WAKE_UCAST) |
| 2328 | cfg5 |= Cfg5_UWF; |
| 2329 | if (wol->wolopts & WAKE_MCAST) |
| 2330 | cfg5 |= Cfg5_MWF; |
| 2331 | if (wol->wolopts & WAKE_BCAST) |
| 2332 | cfg5 |= Cfg5_BWF; |
| 2333 | RTL_W8 (Config5, cfg5); /* need not unlock via Cfg9346 */ |
| 2334 | spin_unlock_irq(&np->lock); |
| 2335 | |
| 2336 | return 0; |
| 2337 | } |
| 2338 | |
| 2339 | static void rtl8139_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info) |
| 2340 | { |
| 2341 | struct rtl8139_private *np = netdev_priv(dev); |
| 2342 | strcpy(info->driver, DRV_NAME); |
| 2343 | strcpy(info->version, DRV_VERSION); |
| 2344 | strcpy(info->bus_info, pci_name(np->pci_dev)); |
| 2345 | info->regdump_len = np->regs_len; |
| 2346 | } |
| 2347 | |
| 2348 | static int rtl8139_get_settings(struct net_device *dev, struct ethtool_cmd *cmd) |
| 2349 | { |
| 2350 | struct rtl8139_private *np = netdev_priv(dev); |
| 2351 | spin_lock_irq(&np->lock); |
| 2352 | mii_ethtool_gset(&np->mii, cmd); |
| 2353 | spin_unlock_irq(&np->lock); |
| 2354 | return 0; |
| 2355 | } |
| 2356 | |
| 2357 | static int rtl8139_set_settings(struct net_device *dev, struct ethtool_cmd *cmd) |
| 2358 | { |
| 2359 | struct rtl8139_private *np = netdev_priv(dev); |
| 2360 | int rc; |
| 2361 | spin_lock_irq(&np->lock); |
| 2362 | rc = mii_ethtool_sset(&np->mii, cmd); |
| 2363 | spin_unlock_irq(&np->lock); |
| 2364 | return rc; |
| 2365 | } |
| 2366 | |
| 2367 | static int rtl8139_nway_reset(struct net_device *dev) |
| 2368 | { |
| 2369 | struct rtl8139_private *np = netdev_priv(dev); |
| 2370 | return mii_nway_restart(&np->mii); |
| 2371 | } |
| 2372 | |
| 2373 | static u32 rtl8139_get_link(struct net_device *dev) |
| 2374 | { |
| 2375 | struct rtl8139_private *np = netdev_priv(dev); |
| 2376 | return mii_link_ok(&np->mii); |
| 2377 | } |
| 2378 | |
| 2379 | static u32 rtl8139_get_msglevel(struct net_device *dev) |
| 2380 | { |
| 2381 | struct rtl8139_private *np = netdev_priv(dev); |
| 2382 | return np->msg_enable; |
| 2383 | } |
| 2384 | |
| 2385 | static void rtl8139_set_msglevel(struct net_device *dev, u32 datum) |
| 2386 | { |
| 2387 | struct rtl8139_private *np = netdev_priv(dev); |
| 2388 | np->msg_enable = datum; |
| 2389 | } |
| 2390 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2391 | static int rtl8139_get_regs_len(struct net_device *dev) |
| 2392 | { |
Dave Jones | eb58134 | 2008-07-15 19:54:53 -0400 | [diff] [blame] | 2393 | struct rtl8139_private *np; |
| 2394 | /* TODO: we are too slack to do reg dumping for pio, for now */ |
| 2395 | if (use_io) |
| 2396 | return 0; |
| 2397 | np = netdev_priv(dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2398 | return np->regs_len; |
| 2399 | } |
| 2400 | |
| 2401 | static void rtl8139_get_regs(struct net_device *dev, struct ethtool_regs *regs, void *regbuf) |
| 2402 | { |
Dave Jones | eb58134 | 2008-07-15 19:54:53 -0400 | [diff] [blame] | 2403 | struct rtl8139_private *np; |
| 2404 | |
| 2405 | /* TODO: we are too slack to do reg dumping for pio, for now */ |
| 2406 | if (use_io) |
| 2407 | return; |
| 2408 | np = netdev_priv(dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2409 | |
| 2410 | regs->version = RTL_REGS_VER; |
| 2411 | |
| 2412 | spin_lock_irq(&np->lock); |
| 2413 | memcpy_fromio(regbuf, np->mmio_addr, regs->len); |
| 2414 | spin_unlock_irq(&np->lock); |
| 2415 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2416 | |
Jeff Garzik | b9f2c04 | 2007-10-03 18:07:32 -0700 | [diff] [blame] | 2417 | static int rtl8139_get_sset_count(struct net_device *dev, int sset) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2418 | { |
Jeff Garzik | b9f2c04 | 2007-10-03 18:07:32 -0700 | [diff] [blame] | 2419 | switch (sset) { |
| 2420 | case ETH_SS_STATS: |
| 2421 | return RTL_NUM_STATS; |
| 2422 | default: |
| 2423 | return -EOPNOTSUPP; |
| 2424 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2425 | } |
| 2426 | |
| 2427 | static void rtl8139_get_ethtool_stats(struct net_device *dev, struct ethtool_stats *stats, u64 *data) |
| 2428 | { |
| 2429 | struct rtl8139_private *np = netdev_priv(dev); |
| 2430 | |
| 2431 | data[0] = np->xstats.early_rx; |
| 2432 | data[1] = np->xstats.tx_buf_mapped; |
| 2433 | data[2] = np->xstats.tx_timeouts; |
| 2434 | data[3] = np->xstats.rx_lost_in_ring; |
| 2435 | } |
| 2436 | |
| 2437 | static void rtl8139_get_strings(struct net_device *dev, u32 stringset, u8 *data) |
| 2438 | { |
| 2439 | memcpy(data, ethtool_stats_keys, sizeof(ethtool_stats_keys)); |
| 2440 | } |
| 2441 | |
Jeff Garzik | 7282d49 | 2006-09-13 14:30:00 -0400 | [diff] [blame] | 2442 | static const struct ethtool_ops rtl8139_ethtool_ops = { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2443 | .get_drvinfo = rtl8139_get_drvinfo, |
| 2444 | .get_settings = rtl8139_get_settings, |
| 2445 | .set_settings = rtl8139_set_settings, |
| 2446 | .get_regs_len = rtl8139_get_regs_len, |
| 2447 | .get_regs = rtl8139_get_regs, |
| 2448 | .nway_reset = rtl8139_nway_reset, |
| 2449 | .get_link = rtl8139_get_link, |
| 2450 | .get_msglevel = rtl8139_get_msglevel, |
| 2451 | .set_msglevel = rtl8139_set_msglevel, |
| 2452 | .get_wol = rtl8139_get_wol, |
| 2453 | .set_wol = rtl8139_set_wol, |
| 2454 | .get_strings = rtl8139_get_strings, |
Jeff Garzik | b9f2c04 | 2007-10-03 18:07:32 -0700 | [diff] [blame] | 2455 | .get_sset_count = rtl8139_get_sset_count, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2456 | .get_ethtool_stats = rtl8139_get_ethtool_stats, |
| 2457 | }; |
| 2458 | |
| 2459 | static int netdev_ioctl(struct net_device *dev, struct ifreq *rq, int cmd) |
| 2460 | { |
| 2461 | struct rtl8139_private *np = netdev_priv(dev); |
| 2462 | int rc; |
| 2463 | |
| 2464 | if (!netif_running(dev)) |
| 2465 | return -EINVAL; |
| 2466 | |
| 2467 | spin_lock_irq(&np->lock); |
| 2468 | rc = generic_mii_ioctl(&np->mii, if_mii(rq), cmd, NULL); |
| 2469 | spin_unlock_irq(&np->lock); |
| 2470 | |
| 2471 | return rc; |
| 2472 | } |
| 2473 | |
| 2474 | |
| 2475 | static struct net_device_stats *rtl8139_get_stats (struct net_device *dev) |
| 2476 | { |
| 2477 | struct rtl8139_private *tp = netdev_priv(dev); |
Pekka Enberg | 22f714b | 2005-05-12 19:38:47 -0400 | [diff] [blame] | 2478 | void __iomem *ioaddr = tp->mmio_addr; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2479 | unsigned long flags; |
| 2480 | |
| 2481 | if (netif_running(dev)) { |
| 2482 | spin_lock_irqsave (&tp->lock, flags); |
Paulius Zaleckas | e1eac92 | 2008-05-05 16:24:21 +0300 | [diff] [blame] | 2483 | dev->stats.rx_missed_errors += RTL_R32 (RxMissed); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2484 | RTL_W32 (RxMissed, 0); |
| 2485 | spin_unlock_irqrestore (&tp->lock, flags); |
| 2486 | } |
| 2487 | |
Paulius Zaleckas | e1eac92 | 2008-05-05 16:24:21 +0300 | [diff] [blame] | 2488 | return &dev->stats; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2489 | } |
| 2490 | |
| 2491 | /* Set or clear the multicast filter for this adaptor. |
| 2492 | This routine is not state sensitive and need not be SMP locked. */ |
| 2493 | |
| 2494 | static void __set_rx_mode (struct net_device *dev) |
| 2495 | { |
| 2496 | struct rtl8139_private *tp = netdev_priv(dev); |
Pekka Enberg | 22f714b | 2005-05-12 19:38:47 -0400 | [diff] [blame] | 2497 | void __iomem *ioaddr = tp->mmio_addr; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2498 | u32 mc_filter[2]; /* Multicast hash filter */ |
| 2499 | int i, rx_mode; |
| 2500 | u32 tmp; |
| 2501 | |
| 2502 | DPRINTK ("%s: rtl8139_set_rx_mode(%4.4x) done -- Rx config %8.8lx.\n", |
| 2503 | dev->name, dev->flags, RTL_R32 (RxConfig)); |
| 2504 | |
| 2505 | /* Note: do not reorder, GCC is clever about common statements. */ |
| 2506 | if (dev->flags & IFF_PROMISC) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2507 | rx_mode = |
| 2508 | AcceptBroadcast | AcceptMulticast | AcceptMyPhys | |
| 2509 | AcceptAllPhys; |
| 2510 | mc_filter[1] = mc_filter[0] = 0xffffffff; |
| 2511 | } else if ((dev->mc_count > multicast_filter_limit) |
| 2512 | || (dev->flags & IFF_ALLMULTI)) { |
| 2513 | /* Too many to filter perfectly -- accept all multicasts. */ |
| 2514 | rx_mode = AcceptBroadcast | AcceptMulticast | AcceptMyPhys; |
| 2515 | mc_filter[1] = mc_filter[0] = 0xffffffff; |
| 2516 | } else { |
| 2517 | struct dev_mc_list *mclist; |
| 2518 | rx_mode = AcceptBroadcast | AcceptMyPhys; |
| 2519 | mc_filter[1] = mc_filter[0] = 0; |
| 2520 | for (i = 0, mclist = dev->mc_list; mclist && i < dev->mc_count; |
| 2521 | i++, mclist = mclist->next) { |
| 2522 | int bit_nr = ether_crc(ETH_ALEN, mclist->dmi_addr) >> 26; |
| 2523 | |
| 2524 | mc_filter[bit_nr >> 5] |= 1 << (bit_nr & 31); |
| 2525 | rx_mode |= AcceptMulticast; |
| 2526 | } |
| 2527 | } |
| 2528 | |
| 2529 | /* We can safely update without stopping the chip. */ |
| 2530 | tmp = rtl8139_rx_config | rx_mode; |
| 2531 | if (tp->rx_config != tmp) { |
| 2532 | RTL_W32_F (RxConfig, tmp); |
| 2533 | tp->rx_config = tmp; |
| 2534 | } |
| 2535 | RTL_W32_F (MAR0 + 0, mc_filter[0]); |
| 2536 | RTL_W32_F (MAR0 + 4, mc_filter[1]); |
| 2537 | } |
| 2538 | |
| 2539 | static void rtl8139_set_rx_mode (struct net_device *dev) |
| 2540 | { |
| 2541 | unsigned long flags; |
| 2542 | struct rtl8139_private *tp = netdev_priv(dev); |
| 2543 | |
| 2544 | spin_lock_irqsave (&tp->lock, flags); |
| 2545 | __set_rx_mode(dev); |
| 2546 | spin_unlock_irqrestore (&tp->lock, flags); |
| 2547 | } |
| 2548 | |
| 2549 | #ifdef CONFIG_PM |
| 2550 | |
| 2551 | static int rtl8139_suspend (struct pci_dev *pdev, pm_message_t state) |
| 2552 | { |
| 2553 | struct net_device *dev = pci_get_drvdata (pdev); |
| 2554 | struct rtl8139_private *tp = netdev_priv(dev); |
Pekka Enberg | 22f714b | 2005-05-12 19:38:47 -0400 | [diff] [blame] | 2555 | void __iomem *ioaddr = tp->mmio_addr; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2556 | unsigned long flags; |
| 2557 | |
| 2558 | pci_save_state (pdev); |
| 2559 | |
| 2560 | if (!netif_running (dev)) |
| 2561 | return 0; |
| 2562 | |
| 2563 | netif_device_detach (dev); |
| 2564 | |
| 2565 | spin_lock_irqsave (&tp->lock, flags); |
| 2566 | |
| 2567 | /* Disable interrupts, stop Tx and Rx. */ |
| 2568 | RTL_W16 (IntrMask, 0); |
| 2569 | RTL_W8 (ChipCmd, 0); |
| 2570 | |
| 2571 | /* Update the error counts. */ |
Paulius Zaleckas | e1eac92 | 2008-05-05 16:24:21 +0300 | [diff] [blame] | 2572 | dev->stats.rx_missed_errors += RTL_R32 (RxMissed); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2573 | RTL_W32 (RxMissed, 0); |
| 2574 | |
| 2575 | spin_unlock_irqrestore (&tp->lock, flags); |
| 2576 | |
| 2577 | pci_set_power_state (pdev, PCI_D3hot); |
| 2578 | |
| 2579 | return 0; |
| 2580 | } |
| 2581 | |
| 2582 | |
| 2583 | static int rtl8139_resume (struct pci_dev *pdev) |
| 2584 | { |
| 2585 | struct net_device *dev = pci_get_drvdata (pdev); |
| 2586 | |
| 2587 | pci_restore_state (pdev); |
| 2588 | if (!netif_running (dev)) |
| 2589 | return 0; |
| 2590 | pci_set_power_state (pdev, PCI_D0); |
| 2591 | rtl8139_init_ring (dev); |
| 2592 | rtl8139_hw_start (dev); |
| 2593 | netif_device_attach (dev); |
| 2594 | return 0; |
| 2595 | } |
| 2596 | |
| 2597 | #endif /* CONFIG_PM */ |
| 2598 | |
| 2599 | |
| 2600 | static struct pci_driver rtl8139_pci_driver = { |
| 2601 | .name = DRV_NAME, |
| 2602 | .id_table = rtl8139_pci_tbl, |
| 2603 | .probe = rtl8139_init_one, |
| 2604 | .remove = __devexit_p(rtl8139_remove_one), |
| 2605 | #ifdef CONFIG_PM |
| 2606 | .suspend = rtl8139_suspend, |
| 2607 | .resume = rtl8139_resume, |
| 2608 | #endif /* CONFIG_PM */ |
| 2609 | }; |
| 2610 | |
| 2611 | |
| 2612 | static int __init rtl8139_init_module (void) |
| 2613 | { |
| 2614 | /* when we're a module, we always print a version message, |
| 2615 | * even if no 8139 board is found. |
| 2616 | */ |
| 2617 | #ifdef MODULE |
| 2618 | printk (KERN_INFO RTL8139_DRIVER_NAME "\n"); |
| 2619 | #endif |
| 2620 | |
Jeff Garzik | 2991762 | 2006-08-19 17:48:59 -0400 | [diff] [blame] | 2621 | return pci_register_driver(&rtl8139_pci_driver); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2622 | } |
| 2623 | |
| 2624 | |
| 2625 | static void __exit rtl8139_cleanup_module (void) |
| 2626 | { |
| 2627 | pci_unregister_driver (&rtl8139_pci_driver); |
| 2628 | } |
| 2629 | |
| 2630 | |
| 2631 | module_init(rtl8139_init_module); |
| 2632 | module_exit(rtl8139_cleanup_module); |