1 /* tulip_core.c: A DEC 21x4x-family ethernet driver for Linux. 2 3 Copyright 2000,2001 The Linux Kernel Team 4 Written/copyright 1994-2001 by Donald Becker. 5 6 This software may be used and distributed according to the terms 7 of the GNU General Public License, incorporated herein by reference. 8 9 Please submit bugs to http://bugzilla.kernel.org/ . 10 */ 11 12 #define pr_fmt(fmt) "tulip: " fmt 13 14 #define DRV_NAME "tulip" 15 #ifdef CONFIG_TULIP_NAPI 16 #define DRV_VERSION "1.1.15-NAPI" /* Keep at least for test */ 17 #else 18 #define DRV_VERSION "1.1.15" 19 #endif 20 #define DRV_RELDATE "Feb 27, 2007" 21 22 23 #include <linux/module.h> 24 #include <linux/pci.h> 25 #include <linux/slab.h> 26 #include "tulip.h" 27 #include <linux/init.h> 28 #include <linux/interrupt.h> 29 #include <linux/etherdevice.h> 30 #include <linux/delay.h> 31 #include <linux/mii.h> 32 #include <linux/crc32.h> 33 #include <asm/unaligned.h> 34 #include <linux/uaccess.h> 35 36 #ifdef CONFIG_SPARC 37 #include <asm/prom.h> 38 #endif 39 40 static char version[] = 41 "Linux Tulip driver version " DRV_VERSION " (" DRV_RELDATE ")\n"; 42 43 /* A few user-configurable values. */ 44 45 /* Maximum events (Rx packets, etc.) to handle at each interrupt. */ 46 static unsigned int max_interrupt_work = 25; 47 48 #define MAX_UNITS 8 49 /* Used to pass the full-duplex flag, etc. */ 50 static int full_duplex[MAX_UNITS]; 51 static int options[MAX_UNITS]; 52 static int mtu[MAX_UNITS]; /* Jumbo MTU for interfaces. */ 53 54 /* The possible media types that can be set in options[] are: */ 55 const char * const medianame[32] = { 56 "10baseT", "10base2", "AUI", "100baseTx", 57 "10baseT-FDX", "100baseTx-FDX", "100baseT4", "100baseFx", 58 "100baseFx-FDX", "MII 10baseT", "MII 10baseT-FDX", "MII", 59 "10baseT(forced)", "MII 100baseTx", "MII 100baseTx-FDX", "MII 100baseT4", 60 "MII 100baseFx-HDX", "MII 100baseFx-FDX", "Home-PNA 1Mbps", "Invalid-19", 61 "","","","", "","","","", "","","","Transceiver reset", 62 }; 63 64 /* Set the copy breakpoint for the copy-only-tiny-buffer Rx structure. */ 65 #if defined(__alpha__) || defined(__arm__) || defined(__hppa__) || \ 66 defined(CONFIG_SPARC) || defined(__ia64__) || \ 67 defined(__sh__) || defined(__mips__) 68 static int rx_copybreak = 1518; 69 #else 70 static int rx_copybreak = 100; 71 #endif 72 73 /* 74 Set the bus performance register. 75 Typical: Set 16 longword cache alignment, no burst limit. 76 Cache alignment bits 15:14 Burst length 13:8 77 0000 No alignment 0x00000000 unlimited 0800 8 longwords 78 4000 8 longwords 0100 1 longword 1000 16 longwords 79 8000 16 longwords 0200 2 longwords 2000 32 longwords 80 C000 32 longwords 0400 4 longwords 81 Warning: many older 486 systems are broken and require setting 0x00A04800 82 8 longword cache alignment, 8 longword burst. 83 ToDo: Non-Intel setting could be better. 84 */ 85 86 #if defined(__alpha__) || defined(__ia64__) 87 static int csr0 = 0x01A00000 | 0xE000; 88 #elif defined(__i386__) || defined(__powerpc__) || defined(__x86_64__) 89 static int csr0 = 0x01A00000 | 0x8000; 90 #elif defined(CONFIG_SPARC) || defined(__hppa__) 91 /* The UltraSparc PCI controllers will disconnect at every 64-byte 92 * crossing anyways so it makes no sense to tell Tulip to burst 93 * any more than that. 94 */ 95 static int csr0 = 0x01A00000 | 0x9000; 96 #elif defined(__arm__) || defined(__sh__) 97 static int csr0 = 0x01A00000 | 0x4800; 98 #elif defined(__mips__) 99 static int csr0 = 0x00200000 | 0x4000; 100 #else 101 static int csr0; 102 #endif 103 104 /* Operational parameters that usually are not changed. */ 105 /* Time in jiffies before concluding the transmitter is hung. */ 106 #define TX_TIMEOUT (4*HZ) 107 108 109 MODULE_AUTHOR("The Linux Kernel Team"); 110 MODULE_DESCRIPTION("Digital 21*4* Tulip ethernet driver"); 111 MODULE_LICENSE("GPL"); 112 MODULE_VERSION(DRV_VERSION); 113 module_param(tulip_debug, int, 0); 114 module_param(max_interrupt_work, int, 0); 115 module_param(rx_copybreak, int, 0); 116 module_param(csr0, int, 0); 117 module_param_array(options, int, NULL, 0); 118 module_param_array(full_duplex, int, NULL, 0); 119 120 #ifdef TULIP_DEBUG 121 int tulip_debug = TULIP_DEBUG; 122 #else 123 int tulip_debug = 1; 124 #endif 125 126 static void tulip_timer(struct timer_list *t) 127 { 128 struct tulip_private *tp = from_timer(tp, t, timer); 129 struct net_device *dev = tp->dev; 130 131 if (netif_running(dev)) 132 schedule_work(&tp->media_work); 133 } 134 135 /* 136 * This table use during operation for capabilities and media timer. 137 * 138 * It is indexed via the values in 'enum chips' 139 */ 140 141 const struct tulip_chip_table tulip_tbl[] = { 142 { }, /* placeholder for array, slot unused currently */ 143 { }, /* placeholder for array, slot unused currently */ 144 145 /* DC21140 */ 146 { "Digital DS21140 Tulip", 128, 0x0001ebef, 147 HAS_MII | HAS_MEDIA_TABLE | CSR12_IN_SROM | HAS_PCI_MWI, tulip_timer, 148 tulip_media_task }, 149 150 /* DC21142, DC21143 */ 151 { "Digital DS21142/43 Tulip", 128, 0x0801fbff, 152 HAS_MII | HAS_MEDIA_TABLE | ALWAYS_CHECK_MII | HAS_ACPI | HAS_NWAY 153 | HAS_INTR_MITIGATION | HAS_PCI_MWI, tulip_timer, t21142_media_task }, 154 155 /* LC82C168 */ 156 { "Lite-On 82c168 PNIC", 256, 0x0001fbef, 157 HAS_MII | HAS_PNICNWAY, pnic_timer, }, 158 159 /* MX98713 */ 160 { "Macronix 98713 PMAC", 128, 0x0001ebef, 161 HAS_MII | HAS_MEDIA_TABLE | CSR12_IN_SROM, mxic_timer, }, 162 163 /* MX98715 */ 164 { "Macronix 98715 PMAC", 256, 0x0001ebef, 165 HAS_MEDIA_TABLE, mxic_timer, }, 166 167 /* MX98725 */ 168 { "Macronix 98725 PMAC", 256, 0x0001ebef, 169 HAS_MEDIA_TABLE, mxic_timer, }, 170 171 /* AX88140 */ 172 { "ASIX AX88140", 128, 0x0001fbff, 173 HAS_MII | HAS_MEDIA_TABLE | CSR12_IN_SROM | MC_HASH_ONLY 174 | IS_ASIX, tulip_timer, tulip_media_task }, 175 176 /* PNIC2 */ 177 { "Lite-On PNIC-II", 256, 0x0801fbff, 178 HAS_MII | HAS_NWAY | HAS_8023X | HAS_PCI_MWI, pnic2_timer, }, 179 180 /* COMET */ 181 { "ADMtek Comet", 256, 0x0001abef, 182 HAS_MII | MC_HASH_ONLY | COMET_MAC_ADDR, comet_timer, }, 183 184 /* COMPEX9881 */ 185 { "Compex 9881 PMAC", 128, 0x0001ebef, 186 HAS_MII | HAS_MEDIA_TABLE | CSR12_IN_SROM, mxic_timer, }, 187 188 /* I21145 */ 189 { "Intel DS21145 Tulip", 128, 0x0801fbff, 190 HAS_MII | HAS_MEDIA_TABLE | ALWAYS_CHECK_MII | HAS_ACPI 191 | HAS_NWAY | HAS_PCI_MWI, tulip_timer, tulip_media_task }, 192 193 /* DM910X */ 194 #ifdef CONFIG_TULIP_DM910X 195 { "Davicom DM9102/DM9102A", 128, 0x0001ebef, 196 HAS_MII | HAS_MEDIA_TABLE | CSR12_IN_SROM | HAS_ACPI, 197 tulip_timer, tulip_media_task }, 198 #else 199 { NULL }, 200 #endif 201 202 /* RS7112 */ 203 { "Conexant LANfinity", 256, 0x0001ebef, 204 HAS_MII | HAS_ACPI, tulip_timer, tulip_media_task }, 205 206 }; 207 208 209 static const struct pci_device_id tulip_pci_tbl[] = { 210 { 0x1011, 0x0009, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DC21140 }, 211 { 0x1011, 0x0019, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DC21143 }, 212 { 0x11AD, 0x0002, PCI_ANY_ID, PCI_ANY_ID, 0, 0, LC82C168 }, 213 { 0x10d9, 0x0512, PCI_ANY_ID, PCI_ANY_ID, 0, 0, MX98713 }, 214 { 0x10d9, 0x0531, PCI_ANY_ID, PCI_ANY_ID, 0, 0, MX98715 }, 215 /* { 0x10d9, 0x0531, PCI_ANY_ID, PCI_ANY_ID, 0, 0, MX98725 },*/ 216 { 0x125B, 0x1400, PCI_ANY_ID, PCI_ANY_ID, 0, 0, AX88140 }, 217 { 0x11AD, 0xc115, PCI_ANY_ID, PCI_ANY_ID, 0, 0, PNIC2 }, 218 { 0x1317, 0x0981, PCI_ANY_ID, PCI_ANY_ID, 0, 0, COMET }, 219 { 0x1317, 0x0985, PCI_ANY_ID, PCI_ANY_ID, 0, 0, COMET }, 220 { 0x1317, 0x1985, PCI_ANY_ID, PCI_ANY_ID, 0, 0, COMET }, 221 { 0x1317, 0x9511, PCI_ANY_ID, PCI_ANY_ID, 0, 0, COMET }, 222 { 0x13D1, 0xAB02, PCI_ANY_ID, PCI_ANY_ID, 0, 0, COMET }, 223 { 0x13D1, 0xAB03, PCI_ANY_ID, PCI_ANY_ID, 0, 0, COMET }, 224 { 0x13D1, 0xAB08, PCI_ANY_ID, PCI_ANY_ID, 0, 0, COMET }, 225 { 0x104A, 0x0981, PCI_ANY_ID, PCI_ANY_ID, 0, 0, COMET }, 226 { 0x104A, 0x2774, PCI_ANY_ID, PCI_ANY_ID, 0, 0, COMET }, 227 { 0x1259, 0xa120, PCI_ANY_ID, PCI_ANY_ID, 0, 0, COMET }, 228 { 0x11F6, 0x9881, PCI_ANY_ID, PCI_ANY_ID, 0, 0, COMPEX9881 }, 229 { 0x8086, 0x0039, PCI_ANY_ID, PCI_ANY_ID, 0, 0, I21145 }, 230 #ifdef CONFIG_TULIP_DM910X 231 { 0x1282, 0x9100, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DM910X }, 232 { 0x1282, 0x9102, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DM910X }, 233 #endif 234 { 0x1113, 0x1216, PCI_ANY_ID, PCI_ANY_ID, 0, 0, COMET }, 235 { 0x1113, 0x1217, PCI_ANY_ID, PCI_ANY_ID, 0, 0, MX98715 }, 236 { 0x1113, 0x9511, PCI_ANY_ID, PCI_ANY_ID, 0, 0, COMET }, 237 { 0x1186, 0x1541, PCI_ANY_ID, PCI_ANY_ID, 0, 0, COMET }, 238 { 0x1186, 0x1561, PCI_ANY_ID, PCI_ANY_ID, 0, 0, COMET }, 239 { 0x1186, 0x1591, PCI_ANY_ID, PCI_ANY_ID, 0, 0, COMET }, 240 { 0x14f1, 0x1803, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CONEXANT }, 241 { 0x1626, 0x8410, PCI_ANY_ID, PCI_ANY_ID, 0, 0, COMET }, 242 { 0x1737, 0xAB09, PCI_ANY_ID, PCI_ANY_ID, 0, 0, COMET }, 243 { 0x1737, 0xAB08, PCI_ANY_ID, PCI_ANY_ID, 0, 0, COMET }, 244 { 0x17B3, 0xAB08, PCI_ANY_ID, PCI_ANY_ID, 0, 0, COMET }, 245 { 0x10b7, 0x9300, PCI_ANY_ID, PCI_ANY_ID, 0, 0, COMET }, /* 3Com 3CSOHO100B-TX */ 246 { 0x14ea, 0xab08, PCI_ANY_ID, PCI_ANY_ID, 0, 0, COMET }, /* Planex FNW-3602-TX */ 247 { 0x1414, 0x0001, PCI_ANY_ID, PCI_ANY_ID, 0, 0, COMET }, /* Microsoft MN-120 */ 248 { 0x1414, 0x0002, PCI_ANY_ID, PCI_ANY_ID, 0, 0, COMET }, 249 { } /* terminate list */ 250 }; 251 MODULE_DEVICE_TABLE(pci, tulip_pci_tbl); 252 253 254 /* A full-duplex map for media types. */ 255 const char tulip_media_cap[32] = 256 {0,0,0,16, 3,19,16,24, 27,4,7,5, 0,20,23,20, 28,31,0,0, }; 257 258 static void tulip_tx_timeout(struct net_device *dev); 259 static void tulip_init_ring(struct net_device *dev); 260 static void tulip_free_ring(struct net_device *dev); 261 static netdev_tx_t tulip_start_xmit(struct sk_buff *skb, 262 struct net_device *dev); 263 static int tulip_open(struct net_device *dev); 264 static int tulip_close(struct net_device *dev); 265 static void tulip_up(struct net_device *dev); 266 static void tulip_down(struct net_device *dev); 267 static struct net_device_stats *tulip_get_stats(struct net_device *dev); 268 static int private_ioctl(struct net_device *dev, struct ifreq *rq, int cmd); 269 static void set_rx_mode(struct net_device *dev); 270 static void tulip_set_wolopts(struct pci_dev *pdev, u32 wolopts); 271 #ifdef CONFIG_NET_POLL_CONTROLLER 272 static void poll_tulip(struct net_device *dev); 273 #endif 274 275 static void tulip_set_power_state (struct tulip_private *tp, 276 int sleep, int snooze) 277 { 278 if (tp->flags & HAS_ACPI) { 279 u32 tmp, newtmp; 280 pci_read_config_dword (tp->pdev, CFDD, &tmp); 281 newtmp = tmp & ~(CFDD_Sleep | CFDD_Snooze); 282 if (sleep) 283 newtmp |= CFDD_Sleep; 284 else if (snooze) 285 newtmp |= CFDD_Snooze; 286 if (tmp != newtmp) 287 pci_write_config_dword (tp->pdev, CFDD, newtmp); 288 } 289 290 } 291 292 293 static void tulip_up(struct net_device *dev) 294 { 295 struct tulip_private *tp = netdev_priv(dev); 296 void __iomem *ioaddr = tp->base_addr; 297 int next_tick = 3*HZ; 298 u32 reg; 299 int i; 300 301 #ifdef CONFIG_TULIP_NAPI 302 napi_enable(&tp->napi); 303 #endif 304 305 /* Wake the chip from sleep/snooze mode. */ 306 tulip_set_power_state (tp, 0, 0); 307 308 /* Disable all WOL events */ 309 pci_enable_wake(tp->pdev, PCI_D3hot, 0); 310 pci_enable_wake(tp->pdev, PCI_D3cold, 0); 311 tulip_set_wolopts(tp->pdev, 0); 312 313 /* On some chip revs we must set the MII/SYM port before the reset!? */ 314 if (tp->mii_cnt || (tp->mtable && tp->mtable->has_mii)) 315 iowrite32(0x00040000, ioaddr + CSR6); 316 317 /* Reset the chip, holding bit 0 set at least 50 PCI cycles. */ 318 iowrite32(0x00000001, ioaddr + CSR0); 319 pci_read_config_dword(tp->pdev, PCI_COMMAND, ®); /* flush write */ 320 udelay(100); 321 322 /* Deassert reset. 323 Wait the specified 50 PCI cycles after a reset by initializing 324 Tx and Rx queues and the address filter list. */ 325 iowrite32(tp->csr0, ioaddr + CSR0); 326 pci_read_config_dword(tp->pdev, PCI_COMMAND, ®); /* flush write */ 327 udelay(100); 328 329 if (tulip_debug > 1) 330 netdev_dbg(dev, "tulip_up(), irq==%d\n", tp->pdev->irq); 331 332 iowrite32(tp->rx_ring_dma, ioaddr + CSR3); 333 iowrite32(tp->tx_ring_dma, ioaddr + CSR4); 334 tp->cur_rx = tp->cur_tx = 0; 335 tp->dirty_rx = tp->dirty_tx = 0; 336 337 if (tp->flags & MC_HASH_ONLY) { 338 u32 addr_low = get_unaligned_le32(dev->dev_addr); 339 u32 addr_high = get_unaligned_le16(dev->dev_addr + 4); 340 if (tp->chip_id == AX88140) { 341 iowrite32(0, ioaddr + CSR13); 342 iowrite32(addr_low, ioaddr + CSR14); 343 iowrite32(1, ioaddr + CSR13); 344 iowrite32(addr_high, ioaddr + CSR14); 345 } else if (tp->flags & COMET_MAC_ADDR) { 346 iowrite32(addr_low, ioaddr + 0xA4); 347 iowrite32(addr_high, ioaddr + 0xA8); 348 iowrite32(0, ioaddr + CSR27); 349 iowrite32(0, ioaddr + CSR28); 350 } 351 } else { 352 /* This is set_rx_mode(), but without starting the transmitter. */ 353 u16 *eaddrs = (u16 *)dev->dev_addr; 354 u16 *setup_frm = &tp->setup_frame[15*6]; 355 dma_addr_t mapping; 356 357 /* 21140 bug: you must add the broadcast address. */ 358 memset(tp->setup_frame, 0xff, sizeof(tp->setup_frame)); 359 /* Fill the final entry of the table with our physical address. */ 360 *setup_frm++ = eaddrs[0]; *setup_frm++ = eaddrs[0]; 361 *setup_frm++ = eaddrs[1]; *setup_frm++ = eaddrs[1]; 362 *setup_frm++ = eaddrs[2]; *setup_frm++ = eaddrs[2]; 363 364 mapping = pci_map_single(tp->pdev, tp->setup_frame, 365 sizeof(tp->setup_frame), 366 PCI_DMA_TODEVICE); 367 tp->tx_buffers[tp->cur_tx].skb = NULL; 368 tp->tx_buffers[tp->cur_tx].mapping = mapping; 369 370 /* Put the setup frame on the Tx list. */ 371 tp->tx_ring[tp->cur_tx].length = cpu_to_le32(0x08000000 | 192); 372 tp->tx_ring[tp->cur_tx].buffer1 = cpu_to_le32(mapping); 373 tp->tx_ring[tp->cur_tx].status = cpu_to_le32(DescOwned); 374 375 tp->cur_tx++; 376 } 377 378 tp->saved_if_port = dev->if_port; 379 if (dev->if_port == 0) 380 dev->if_port = tp->default_port; 381 382 /* Allow selecting a default media. */ 383 i = 0; 384 if (tp->mtable == NULL) 385 goto media_picked; 386 if (dev->if_port) { 387 int looking_for = tulip_media_cap[dev->if_port] & MediaIsMII ? 11 : 388 (dev->if_port == 12 ? 0 : dev->if_port); 389 for (i = 0; i < tp->mtable->leafcount; i++) 390 if (tp->mtable->mleaf[i].media == looking_for) { 391 dev_info(&dev->dev, 392 "Using user-specified media %s\n", 393 medianame[dev->if_port]); 394 goto media_picked; 395 } 396 } 397 if ((tp->mtable->defaultmedia & 0x0800) == 0) { 398 int looking_for = tp->mtable->defaultmedia & MEDIA_MASK; 399 for (i = 0; i < tp->mtable->leafcount; i++) 400 if (tp->mtable->mleaf[i].media == looking_for) { 401 dev_info(&dev->dev, 402 "Using EEPROM-set media %s\n", 403 medianame[looking_for]); 404 goto media_picked; 405 } 406 } 407 /* Start sensing first non-full-duplex media. */ 408 for (i = tp->mtable->leafcount - 1; 409 (tulip_media_cap[tp->mtable->mleaf[i].media] & MediaAlwaysFD) && i > 0; i--) 410 ; 411 media_picked: 412 413 tp->csr6 = 0; 414 tp->cur_index = i; 415 tp->nwayset = 0; 416 417 if (dev->if_port) { 418 if (tp->chip_id == DC21143 && 419 (tulip_media_cap[dev->if_port] & MediaIsMII)) { 420 /* We must reset the media CSRs when we force-select MII mode. */ 421 iowrite32(0x0000, ioaddr + CSR13); 422 iowrite32(0x0000, ioaddr + CSR14); 423 iowrite32(0x0008, ioaddr + CSR15); 424 } 425 tulip_select_media(dev, 1); 426 } else if (tp->chip_id == DC21142) { 427 if (tp->mii_cnt) { 428 tulip_select_media(dev, 1); 429 if (tulip_debug > 1) 430 dev_info(&dev->dev, 431 "Using MII transceiver %d, status %04x\n", 432 tp->phys[0], 433 tulip_mdio_read(dev, tp->phys[0], 1)); 434 iowrite32(csr6_mask_defstate, ioaddr + CSR6); 435 tp->csr6 = csr6_mask_hdcap; 436 dev->if_port = 11; 437 iowrite32(0x0000, ioaddr + CSR13); 438 iowrite32(0x0000, ioaddr + CSR14); 439 } else 440 t21142_start_nway(dev); 441 } else if (tp->chip_id == PNIC2) { 442 /* for initial startup advertise 10/100 Full and Half */ 443 tp->sym_advertise = 0x01E0; 444 /* enable autonegotiate end interrupt */ 445 iowrite32(ioread32(ioaddr+CSR5)| 0x00008010, ioaddr + CSR5); 446 iowrite32(ioread32(ioaddr+CSR7)| 0x00008010, ioaddr + CSR7); 447 pnic2_start_nway(dev); 448 } else if (tp->chip_id == LC82C168 && ! tp->medialock) { 449 if (tp->mii_cnt) { 450 dev->if_port = 11; 451 tp->csr6 = 0x814C0000 | (tp->full_duplex ? 0x0200 : 0); 452 iowrite32(0x0001, ioaddr + CSR15); 453 } else if (ioread32(ioaddr + CSR5) & TPLnkPass) 454 pnic_do_nway(dev); 455 else { 456 /* Start with 10mbps to do autonegotiation. */ 457 iowrite32(0x32, ioaddr + CSR12); 458 tp->csr6 = 0x00420000; 459 iowrite32(0x0001B078, ioaddr + 0xB8); 460 iowrite32(0x0201B078, ioaddr + 0xB8); 461 next_tick = 1*HZ; 462 } 463 } else if ((tp->chip_id == MX98713 || tp->chip_id == COMPEX9881) && 464 ! tp->medialock) { 465 dev->if_port = 0; 466 tp->csr6 = 0x01880000 | (tp->full_duplex ? 0x0200 : 0); 467 iowrite32(0x0f370000 | ioread16(ioaddr + 0x80), ioaddr + 0x80); 468 } else if (tp->chip_id == MX98715 || tp->chip_id == MX98725) { 469 /* Provided by BOLO, Macronix - 12/10/1998. */ 470 dev->if_port = 0; 471 tp->csr6 = 0x01a80200; 472 iowrite32(0x0f370000 | ioread16(ioaddr + 0x80), ioaddr + 0x80); 473 iowrite32(0x11000 | ioread16(ioaddr + 0xa0), ioaddr + 0xa0); 474 } else if (tp->chip_id == COMET || tp->chip_id == CONEXANT) { 475 /* Enable automatic Tx underrun recovery. */ 476 iowrite32(ioread32(ioaddr + 0x88) | 1, ioaddr + 0x88); 477 dev->if_port = tp->mii_cnt ? 11 : 0; 478 tp->csr6 = 0x00040000; 479 } else if (tp->chip_id == AX88140) { 480 tp->csr6 = tp->mii_cnt ? 0x00040100 : 0x00000100; 481 } else 482 tulip_select_media(dev, 1); 483 484 /* Start the chip's Tx to process setup frame. */ 485 tulip_stop_rxtx(tp); 486 barrier(); 487 udelay(5); 488 iowrite32(tp->csr6 | TxOn, ioaddr + CSR6); 489 490 /* Enable interrupts by setting the interrupt mask. */ 491 iowrite32(tulip_tbl[tp->chip_id].valid_intrs, ioaddr + CSR5); 492 iowrite32(tulip_tbl[tp->chip_id].valid_intrs, ioaddr + CSR7); 493 tulip_start_rxtx(tp); 494 iowrite32(0, ioaddr + CSR2); /* Rx poll demand */ 495 496 if (tulip_debug > 2) { 497 netdev_dbg(dev, "Done tulip_up(), CSR0 %08x, CSR5 %08x CSR6 %08x\n", 498 ioread32(ioaddr + CSR0), 499 ioread32(ioaddr + CSR5), 500 ioread32(ioaddr + CSR6)); 501 } 502 503 /* Set the timer to switch to check for link beat and perhaps switch 504 to an alternate media type. */ 505 tp->timer.expires = RUN_AT(next_tick); 506 add_timer(&tp->timer); 507 #ifdef CONFIG_TULIP_NAPI 508 timer_setup(&tp->oom_timer, oom_timer, 0); 509 #endif 510 } 511 512 static int 513 tulip_open(struct net_device *dev) 514 { 515 struct tulip_private *tp = netdev_priv(dev); 516 int retval; 517 518 tulip_init_ring (dev); 519 520 retval = request_irq(tp->pdev->irq, tulip_interrupt, IRQF_SHARED, 521 dev->name, dev); 522 if (retval) 523 goto free_ring; 524 525 tulip_up (dev); 526 527 netif_start_queue (dev); 528 529 return 0; 530 531 free_ring: 532 tulip_free_ring (dev); 533 return retval; 534 } 535 536 537 static void tulip_tx_timeout(struct net_device *dev) 538 { 539 struct tulip_private *tp = netdev_priv(dev); 540 void __iomem *ioaddr = tp->base_addr; 541 unsigned long flags; 542 543 spin_lock_irqsave (&tp->lock, flags); 544 545 if (tulip_media_cap[dev->if_port] & MediaIsMII) { 546 /* Do nothing -- the media monitor should handle this. */ 547 if (tulip_debug > 1) 548 dev_warn(&dev->dev, 549 "Transmit timeout using MII device\n"); 550 } else if (tp->chip_id == DC21140 || tp->chip_id == DC21142 || 551 tp->chip_id == MX98713 || tp->chip_id == COMPEX9881 || 552 tp->chip_id == DM910X) { 553 dev_warn(&dev->dev, 554 "21140 transmit timed out, status %08x, SIA %08x %08x %08x %08x, resetting...\n", 555 ioread32(ioaddr + CSR5), ioread32(ioaddr + CSR12), 556 ioread32(ioaddr + CSR13), ioread32(ioaddr + CSR14), 557 ioread32(ioaddr + CSR15)); 558 tp->timeout_recovery = 1; 559 schedule_work(&tp->media_work); 560 goto out_unlock; 561 } else if (tp->chip_id == PNIC2) { 562 dev_warn(&dev->dev, 563 "PNIC2 transmit timed out, status %08x, CSR6/7 %08x / %08x CSR12 %08x, resetting...\n", 564 (int)ioread32(ioaddr + CSR5), 565 (int)ioread32(ioaddr + CSR6), 566 (int)ioread32(ioaddr + CSR7), 567 (int)ioread32(ioaddr + CSR12)); 568 } else { 569 dev_warn(&dev->dev, 570 "Transmit timed out, status %08x, CSR12 %08x, resetting...\n", 571 ioread32(ioaddr + CSR5), ioread32(ioaddr + CSR12)); 572 dev->if_port = 0; 573 } 574 575 #if defined(way_too_many_messages) 576 if (tulip_debug > 3) { 577 int i; 578 for (i = 0; i < RX_RING_SIZE; i++) { 579 u8 *buf = (u8 *)(tp->rx_ring[i].buffer1); 580 int j; 581 printk(KERN_DEBUG 582 "%2d: %08x %08x %08x %08x %02x %02x %02x\n", 583 i, 584 (unsigned int)tp->rx_ring[i].status, 585 (unsigned int)tp->rx_ring[i].length, 586 (unsigned int)tp->rx_ring[i].buffer1, 587 (unsigned int)tp->rx_ring[i].buffer2, 588 buf[0], buf[1], buf[2]); 589 for (j = 0; ((j < 1600) && buf[j] != 0xee); j++) 590 if (j < 100) 591 pr_cont(" %02x", buf[j]); 592 pr_cont(" j=%d\n", j); 593 } 594 printk(KERN_DEBUG " Rx ring %p: ", tp->rx_ring); 595 for (i = 0; i < RX_RING_SIZE; i++) 596 pr_cont(" %08x", (unsigned int)tp->rx_ring[i].status); 597 printk(KERN_DEBUG " Tx ring %p: ", tp->tx_ring); 598 for (i = 0; i < TX_RING_SIZE; i++) 599 pr_cont(" %08x", (unsigned int)tp->tx_ring[i].status); 600 pr_cont("\n"); 601 } 602 #endif 603 604 tulip_tx_timeout_complete(tp, ioaddr); 605 606 out_unlock: 607 spin_unlock_irqrestore (&tp->lock, flags); 608 netif_trans_update(dev); /* prevent tx timeout */ 609 netif_wake_queue (dev); 610 } 611 612 613 /* Initialize the Rx and Tx rings, along with various 'dev' bits. */ 614 static void tulip_init_ring(struct net_device *dev) 615 { 616 struct tulip_private *tp = netdev_priv(dev); 617 int i; 618 619 tp->susp_rx = 0; 620 tp->ttimer = 0; 621 tp->nir = 0; 622 623 for (i = 0; i < RX_RING_SIZE; i++) { 624 tp->rx_ring[i].status = 0x00000000; 625 tp->rx_ring[i].length = cpu_to_le32(PKT_BUF_SZ); 626 tp->rx_ring[i].buffer2 = cpu_to_le32(tp->rx_ring_dma + sizeof(struct tulip_rx_desc) * (i + 1)); 627 tp->rx_buffers[i].skb = NULL; 628 tp->rx_buffers[i].mapping = 0; 629 } 630 /* Mark the last entry as wrapping the ring. */ 631 tp->rx_ring[i-1].length = cpu_to_le32(PKT_BUF_SZ | DESC_RING_WRAP); 632 tp->rx_ring[i-1].buffer2 = cpu_to_le32(tp->rx_ring_dma); 633 634 for (i = 0; i < RX_RING_SIZE; i++) { 635 dma_addr_t mapping; 636 637 /* Note the receive buffer must be longword aligned. 638 netdev_alloc_skb() provides 16 byte alignment. But do *not* 639 use skb_reserve() to align the IP header! */ 640 struct sk_buff *skb = netdev_alloc_skb(dev, PKT_BUF_SZ); 641 tp->rx_buffers[i].skb = skb; 642 if (skb == NULL) 643 break; 644 mapping = pci_map_single(tp->pdev, skb->data, 645 PKT_BUF_SZ, PCI_DMA_FROMDEVICE); 646 tp->rx_buffers[i].mapping = mapping; 647 tp->rx_ring[i].status = cpu_to_le32(DescOwned); /* Owned by Tulip chip */ 648 tp->rx_ring[i].buffer1 = cpu_to_le32(mapping); 649 } 650 tp->dirty_rx = (unsigned int)(i - RX_RING_SIZE); 651 652 /* The Tx buffer descriptor is filled in as needed, but we 653 do need to clear the ownership bit. */ 654 for (i = 0; i < TX_RING_SIZE; i++) { 655 tp->tx_buffers[i].skb = NULL; 656 tp->tx_buffers[i].mapping = 0; 657 tp->tx_ring[i].status = 0x00000000; 658 tp->tx_ring[i].buffer2 = cpu_to_le32(tp->tx_ring_dma + sizeof(struct tulip_tx_desc) * (i + 1)); 659 } 660 tp->tx_ring[i-1].buffer2 = cpu_to_le32(tp->tx_ring_dma); 661 } 662 663 static netdev_tx_t 664 tulip_start_xmit(struct sk_buff *skb, struct net_device *dev) 665 { 666 struct tulip_private *tp = netdev_priv(dev); 667 int entry; 668 u32 flag; 669 dma_addr_t mapping; 670 unsigned long flags; 671 672 spin_lock_irqsave(&tp->lock, flags); 673 674 /* Calculate the next Tx descriptor entry. */ 675 entry = tp->cur_tx % TX_RING_SIZE; 676 677 tp->tx_buffers[entry].skb = skb; 678 mapping = pci_map_single(tp->pdev, skb->data, 679 skb->len, PCI_DMA_TODEVICE); 680 tp->tx_buffers[entry].mapping = mapping; 681 tp->tx_ring[entry].buffer1 = cpu_to_le32(mapping); 682 683 if (tp->cur_tx - tp->dirty_tx < TX_RING_SIZE/2) {/* Typical path */ 684 flag = 0x60000000; /* No interrupt */ 685 } else if (tp->cur_tx - tp->dirty_tx == TX_RING_SIZE/2) { 686 flag = 0xe0000000; /* Tx-done intr. */ 687 } else if (tp->cur_tx - tp->dirty_tx < TX_RING_SIZE - 2) { 688 flag = 0x60000000; /* No Tx-done intr. */ 689 } else { /* Leave room for set_rx_mode() to fill entries. */ 690 flag = 0xe0000000; /* Tx-done intr. */ 691 netif_stop_queue(dev); 692 } 693 if (entry == TX_RING_SIZE-1) 694 flag = 0xe0000000 | DESC_RING_WRAP; 695 696 tp->tx_ring[entry].length = cpu_to_le32(skb->len | flag); 697 /* if we were using Transmit Automatic Polling, we would need a 698 * wmb() here. */ 699 tp->tx_ring[entry].status = cpu_to_le32(DescOwned); 700 wmb(); 701 702 tp->cur_tx++; 703 704 /* Trigger an immediate transmit demand. */ 705 iowrite32(0, tp->base_addr + CSR1); 706 707 spin_unlock_irqrestore(&tp->lock, flags); 708 709 return NETDEV_TX_OK; 710 } 711 712 static void tulip_clean_tx_ring(struct tulip_private *tp) 713 { 714 unsigned int dirty_tx; 715 716 for (dirty_tx = tp->dirty_tx ; tp->cur_tx - dirty_tx > 0; 717 dirty_tx++) { 718 int entry = dirty_tx % TX_RING_SIZE; 719 int status = le32_to_cpu(tp->tx_ring[entry].status); 720 721 if (status < 0) { 722 tp->dev->stats.tx_errors++; /* It wasn't Txed */ 723 tp->tx_ring[entry].status = 0; 724 } 725 726 /* Check for Tx filter setup frames. */ 727 if (tp->tx_buffers[entry].skb == NULL) { 728 /* test because dummy frames not mapped */ 729 if (tp->tx_buffers[entry].mapping) 730 pci_unmap_single(tp->pdev, 731 tp->tx_buffers[entry].mapping, 732 sizeof(tp->setup_frame), 733 PCI_DMA_TODEVICE); 734 continue; 735 } 736 737 pci_unmap_single(tp->pdev, tp->tx_buffers[entry].mapping, 738 tp->tx_buffers[entry].skb->len, 739 PCI_DMA_TODEVICE); 740 741 /* Free the original skb. */ 742 dev_kfree_skb_irq(tp->tx_buffers[entry].skb); 743 tp->tx_buffers[entry].skb = NULL; 744 tp->tx_buffers[entry].mapping = 0; 745 } 746 } 747 748 static void tulip_down (struct net_device *dev) 749 { 750 struct tulip_private *tp = netdev_priv(dev); 751 void __iomem *ioaddr = tp->base_addr; 752 unsigned long flags; 753 754 cancel_work_sync(&tp->media_work); 755 756 #ifdef CONFIG_TULIP_NAPI 757 napi_disable(&tp->napi); 758 #endif 759 760 del_timer_sync (&tp->timer); 761 #ifdef CONFIG_TULIP_NAPI 762 del_timer_sync (&tp->oom_timer); 763 #endif 764 spin_lock_irqsave (&tp->lock, flags); 765 766 /* Disable interrupts by clearing the interrupt mask. */ 767 iowrite32 (0x00000000, ioaddr + CSR7); 768 769 /* Stop the Tx and Rx processes. */ 770 tulip_stop_rxtx(tp); 771 772 /* prepare receive buffers */ 773 tulip_refill_rx(dev); 774 775 /* release any unconsumed transmit buffers */ 776 tulip_clean_tx_ring(tp); 777 778 if (ioread32(ioaddr + CSR6) != 0xffffffff) 779 dev->stats.rx_missed_errors += ioread32(ioaddr + CSR8) & 0xffff; 780 781 spin_unlock_irqrestore (&tp->lock, flags); 782 783 timer_setup(&tp->timer, tulip_tbl[tp->chip_id].media_timer, 0); 784 785 dev->if_port = tp->saved_if_port; 786 787 /* Leave the driver in snooze, not sleep, mode. */ 788 tulip_set_power_state (tp, 0, 1); 789 } 790 791 static void tulip_free_ring (struct net_device *dev) 792 { 793 struct tulip_private *tp = netdev_priv(dev); 794 int i; 795 796 /* Free all the skbuffs in the Rx queue. */ 797 for (i = 0; i < RX_RING_SIZE; i++) { 798 struct sk_buff *skb = tp->rx_buffers[i].skb; 799 dma_addr_t mapping = tp->rx_buffers[i].mapping; 800 801 tp->rx_buffers[i].skb = NULL; 802 tp->rx_buffers[i].mapping = 0; 803 804 tp->rx_ring[i].status = 0; /* Not owned by Tulip chip. */ 805 tp->rx_ring[i].length = 0; 806 /* An invalid address. */ 807 tp->rx_ring[i].buffer1 = cpu_to_le32(0xBADF00D0); 808 if (skb) { 809 pci_unmap_single(tp->pdev, mapping, PKT_BUF_SZ, 810 PCI_DMA_FROMDEVICE); 811 dev_kfree_skb (skb); 812 } 813 } 814 815 for (i = 0; i < TX_RING_SIZE; i++) { 816 struct sk_buff *skb = tp->tx_buffers[i].skb; 817 818 if (skb != NULL) { 819 pci_unmap_single(tp->pdev, tp->tx_buffers[i].mapping, 820 skb->len, PCI_DMA_TODEVICE); 821 dev_kfree_skb (skb); 822 } 823 tp->tx_buffers[i].skb = NULL; 824 tp->tx_buffers[i].mapping = 0; 825 } 826 } 827 828 static int tulip_close (struct net_device *dev) 829 { 830 struct tulip_private *tp = netdev_priv(dev); 831 void __iomem *ioaddr = tp->base_addr; 832 833 netif_stop_queue (dev); 834 835 tulip_down (dev); 836 837 if (tulip_debug > 1) 838 netdev_dbg(dev, "Shutting down ethercard, status was %02x\n", 839 ioread32 (ioaddr + CSR5)); 840 841 free_irq (tp->pdev->irq, dev); 842 843 tulip_free_ring (dev); 844 845 return 0; 846 } 847 848 static struct net_device_stats *tulip_get_stats(struct net_device *dev) 849 { 850 struct tulip_private *tp = netdev_priv(dev); 851 void __iomem *ioaddr = tp->base_addr; 852 853 if (netif_running(dev)) { 854 unsigned long flags; 855 856 spin_lock_irqsave (&tp->lock, flags); 857 858 dev->stats.rx_missed_errors += ioread32(ioaddr + CSR8) & 0xffff; 859 860 spin_unlock_irqrestore(&tp->lock, flags); 861 } 862 863 return &dev->stats; 864 } 865 866 867 static void tulip_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info) 868 { 869 struct tulip_private *np = netdev_priv(dev); 870 strlcpy(info->driver, DRV_NAME, sizeof(info->driver)); 871 strlcpy(info->version, DRV_VERSION, sizeof(info->version)); 872 strlcpy(info->bus_info, pci_name(np->pdev), sizeof(info->bus_info)); 873 } 874 875 876 static int tulip_ethtool_set_wol(struct net_device *dev, 877 struct ethtool_wolinfo *wolinfo) 878 { 879 struct tulip_private *tp = netdev_priv(dev); 880 881 if (wolinfo->wolopts & (~tp->wolinfo.supported)) 882 return -EOPNOTSUPP; 883 884 tp->wolinfo.wolopts = wolinfo->wolopts; 885 device_set_wakeup_enable(&tp->pdev->dev, tp->wolinfo.wolopts); 886 return 0; 887 } 888 889 static void tulip_ethtool_get_wol(struct net_device *dev, 890 struct ethtool_wolinfo *wolinfo) 891 { 892 struct tulip_private *tp = netdev_priv(dev); 893 894 wolinfo->supported = tp->wolinfo.supported; 895 wolinfo->wolopts = tp->wolinfo.wolopts; 896 return; 897 } 898 899 900 static const struct ethtool_ops ops = { 901 .get_drvinfo = tulip_get_drvinfo, 902 .set_wol = tulip_ethtool_set_wol, 903 .get_wol = tulip_ethtool_get_wol, 904 }; 905 906 /* Provide ioctl() calls to examine the MII xcvr state. */ 907 static int private_ioctl (struct net_device *dev, struct ifreq *rq, int cmd) 908 { 909 struct tulip_private *tp = netdev_priv(dev); 910 void __iomem *ioaddr = tp->base_addr; 911 struct mii_ioctl_data *data = if_mii(rq); 912 const unsigned int phy_idx = 0; 913 int phy = tp->phys[phy_idx] & 0x1f; 914 unsigned int regnum = data->reg_num; 915 916 switch (cmd) { 917 case SIOCGMIIPHY: /* Get address of MII PHY in use. */ 918 if (tp->mii_cnt) 919 data->phy_id = phy; 920 else if (tp->flags & HAS_NWAY) 921 data->phy_id = 32; 922 else if (tp->chip_id == COMET) 923 data->phy_id = 1; 924 else 925 return -ENODEV; 926 927 case SIOCGMIIREG: /* Read MII PHY register. */ 928 if (data->phy_id == 32 && (tp->flags & HAS_NWAY)) { 929 int csr12 = ioread32 (ioaddr + CSR12); 930 int csr14 = ioread32 (ioaddr + CSR14); 931 switch (regnum) { 932 case 0: 933 if (((csr14<<5) & 0x1000) || 934 (dev->if_port == 5 && tp->nwayset)) 935 data->val_out = 0x1000; 936 else 937 data->val_out = (tulip_media_cap[dev->if_port]&MediaIs100 ? 0x2000 : 0) 938 | (tulip_media_cap[dev->if_port]&MediaIsFD ? 0x0100 : 0); 939 break; 940 case 1: 941 data->val_out = 942 0x1848 + 943 ((csr12&0x7000) == 0x5000 ? 0x20 : 0) + 944 ((csr12&0x06) == 6 ? 0 : 4); 945 data->val_out |= 0x6048; 946 break; 947 case 4: 948 /* Advertised value, bogus 10baseTx-FD value from CSR6. */ 949 data->val_out = 950 ((ioread32(ioaddr + CSR6) >> 3) & 0x0040) + 951 ((csr14 >> 1) & 0x20) + 1; 952 data->val_out |= ((csr14 >> 9) & 0x03C0); 953 break; 954 case 5: data->val_out = tp->lpar; break; 955 default: data->val_out = 0; break; 956 } 957 } else { 958 data->val_out = tulip_mdio_read (dev, data->phy_id & 0x1f, regnum); 959 } 960 return 0; 961 962 case SIOCSMIIREG: /* Write MII PHY register. */ 963 if (regnum & ~0x1f) 964 return -EINVAL; 965 if (data->phy_id == phy) { 966 u16 value = data->val_in; 967 switch (regnum) { 968 case 0: /* Check for autonegotiation on or reset. */ 969 tp->full_duplex_lock = (value & 0x9000) ? 0 : 1; 970 if (tp->full_duplex_lock) 971 tp->full_duplex = (value & 0x0100) ? 1 : 0; 972 break; 973 case 4: 974 tp->advertising[phy_idx] = 975 tp->mii_advertise = data->val_in; 976 break; 977 } 978 } 979 if (data->phy_id == 32 && (tp->flags & HAS_NWAY)) { 980 u16 value = data->val_in; 981 if (regnum == 0) { 982 if ((value & 0x1200) == 0x1200) { 983 if (tp->chip_id == PNIC2) { 984 pnic2_start_nway (dev); 985 } else { 986 t21142_start_nway (dev); 987 } 988 } 989 } else if (regnum == 4) 990 tp->sym_advertise = value; 991 } else { 992 tulip_mdio_write (dev, data->phy_id & 0x1f, regnum, data->val_in); 993 } 994 return 0; 995 default: 996 return -EOPNOTSUPP; 997 } 998 999 return -EOPNOTSUPP; 1000 } 1001 1002 1003 /* Set or clear the multicast filter for this adaptor. 1004 Note that we only use exclusion around actually queueing the 1005 new frame, not around filling tp->setup_frame. This is non-deterministic 1006 when re-entered but still correct. */ 1007 1008 static void build_setup_frame_hash(u16 *setup_frm, struct net_device *dev) 1009 { 1010 struct tulip_private *tp = netdev_priv(dev); 1011 u16 hash_table[32]; 1012 struct netdev_hw_addr *ha; 1013 int i; 1014 u16 *eaddrs; 1015 1016 memset(hash_table, 0, sizeof(hash_table)); 1017 __set_bit_le(255, hash_table); /* Broadcast entry */ 1018 /* This should work on big-endian machines as well. */ 1019 netdev_for_each_mc_addr(ha, dev) { 1020 int index = ether_crc_le(ETH_ALEN, ha->addr) & 0x1ff; 1021 1022 __set_bit_le(index, hash_table); 1023 } 1024 for (i = 0; i < 32; i++) { 1025 *setup_frm++ = hash_table[i]; 1026 *setup_frm++ = hash_table[i]; 1027 } 1028 setup_frm = &tp->setup_frame[13*6]; 1029 1030 /* Fill the final entry with our physical address. */ 1031 eaddrs = (u16 *)dev->dev_addr; 1032 *setup_frm++ = eaddrs[0]; *setup_frm++ = eaddrs[0]; 1033 *setup_frm++ = eaddrs[1]; *setup_frm++ = eaddrs[1]; 1034 *setup_frm++ = eaddrs[2]; *setup_frm++ = eaddrs[2]; 1035 } 1036 1037 static void build_setup_frame_perfect(u16 *setup_frm, struct net_device *dev) 1038 { 1039 struct tulip_private *tp = netdev_priv(dev); 1040 struct netdev_hw_addr *ha; 1041 u16 *eaddrs; 1042 1043 /* We have <= 14 addresses so we can use the wonderful 1044 16 address perfect filtering of the Tulip. */ 1045 netdev_for_each_mc_addr(ha, dev) { 1046 eaddrs = (u16 *) ha->addr; 1047 *setup_frm++ = *eaddrs; *setup_frm++ = *eaddrs++; 1048 *setup_frm++ = *eaddrs; *setup_frm++ = *eaddrs++; 1049 *setup_frm++ = *eaddrs; *setup_frm++ = *eaddrs++; 1050 } 1051 /* Fill the unused entries with the broadcast address. */ 1052 memset(setup_frm, 0xff, (15 - netdev_mc_count(dev)) * 12); 1053 setup_frm = &tp->setup_frame[15*6]; 1054 1055 /* Fill the final entry with our physical address. */ 1056 eaddrs = (u16 *)dev->dev_addr; 1057 *setup_frm++ = eaddrs[0]; *setup_frm++ = eaddrs[0]; 1058 *setup_frm++ = eaddrs[1]; *setup_frm++ = eaddrs[1]; 1059 *setup_frm++ = eaddrs[2]; *setup_frm++ = eaddrs[2]; 1060 } 1061 1062 1063 static void set_rx_mode(struct net_device *dev) 1064 { 1065 struct tulip_private *tp = netdev_priv(dev); 1066 void __iomem *ioaddr = tp->base_addr; 1067 int csr6; 1068 1069 csr6 = ioread32(ioaddr + CSR6) & ~0x00D5; 1070 1071 tp->csr6 &= ~0x00D5; 1072 if (dev->flags & IFF_PROMISC) { /* Set promiscuous. */ 1073 tp->csr6 |= AcceptAllMulticast | AcceptAllPhys; 1074 csr6 |= AcceptAllMulticast | AcceptAllPhys; 1075 } else if ((netdev_mc_count(dev) > 1000) || 1076 (dev->flags & IFF_ALLMULTI)) { 1077 /* Too many to filter well -- accept all multicasts. */ 1078 tp->csr6 |= AcceptAllMulticast; 1079 csr6 |= AcceptAllMulticast; 1080 } else if (tp->flags & MC_HASH_ONLY) { 1081 /* Some work-alikes have only a 64-entry hash filter table. */ 1082 /* Should verify correctness on big-endian/__powerpc__ */ 1083 struct netdev_hw_addr *ha; 1084 if (netdev_mc_count(dev) > 64) { 1085 /* Arbitrary non-effective limit. */ 1086 tp->csr6 |= AcceptAllMulticast; 1087 csr6 |= AcceptAllMulticast; 1088 } else { 1089 u32 mc_filter[2] = {0, 0}; /* Multicast hash filter */ 1090 int filterbit; 1091 netdev_for_each_mc_addr(ha, dev) { 1092 if (tp->flags & COMET_MAC_ADDR) 1093 filterbit = ether_crc_le(ETH_ALEN, 1094 ha->addr); 1095 else 1096 filterbit = ether_crc(ETH_ALEN, 1097 ha->addr) >> 26; 1098 filterbit &= 0x3f; 1099 mc_filter[filterbit >> 5] |= 1 << (filterbit & 31); 1100 if (tulip_debug > 2) 1101 dev_info(&dev->dev, 1102 "Added filter for %pM %08x bit %d\n", 1103 ha->addr, 1104 ether_crc(ETH_ALEN, ha->addr), 1105 filterbit); 1106 } 1107 if (mc_filter[0] == tp->mc_filter[0] && 1108 mc_filter[1] == tp->mc_filter[1]) 1109 ; /* No change. */ 1110 else if (tp->flags & IS_ASIX) { 1111 iowrite32(2, ioaddr + CSR13); 1112 iowrite32(mc_filter[0], ioaddr + CSR14); 1113 iowrite32(3, ioaddr + CSR13); 1114 iowrite32(mc_filter[1], ioaddr + CSR14); 1115 } else if (tp->flags & COMET_MAC_ADDR) { 1116 iowrite32(mc_filter[0], ioaddr + CSR27); 1117 iowrite32(mc_filter[1], ioaddr + CSR28); 1118 } 1119 tp->mc_filter[0] = mc_filter[0]; 1120 tp->mc_filter[1] = mc_filter[1]; 1121 } 1122 } else { 1123 unsigned long flags; 1124 u32 tx_flags = 0x08000000 | 192; 1125 1126 /* Note that only the low-address shortword of setup_frame is valid! 1127 The values are doubled for big-endian architectures. */ 1128 if (netdev_mc_count(dev) > 14) { 1129 /* Must use a multicast hash table. */ 1130 build_setup_frame_hash(tp->setup_frame, dev); 1131 tx_flags = 0x08400000 | 192; 1132 } else { 1133 build_setup_frame_perfect(tp->setup_frame, dev); 1134 } 1135 1136 spin_lock_irqsave(&tp->lock, flags); 1137 1138 if (tp->cur_tx - tp->dirty_tx > TX_RING_SIZE - 2) { 1139 /* Same setup recently queued, we need not add it. */ 1140 } else { 1141 unsigned int entry; 1142 int dummy = -1; 1143 1144 /* Now add this frame to the Tx list. */ 1145 1146 entry = tp->cur_tx++ % TX_RING_SIZE; 1147 1148 if (entry != 0) { 1149 /* Avoid a chip errata by prefixing a dummy entry. */ 1150 tp->tx_buffers[entry].skb = NULL; 1151 tp->tx_buffers[entry].mapping = 0; 1152 tp->tx_ring[entry].length = 1153 (entry == TX_RING_SIZE-1) ? cpu_to_le32(DESC_RING_WRAP) : 0; 1154 tp->tx_ring[entry].buffer1 = 0; 1155 /* Must set DescOwned later to avoid race with chip */ 1156 dummy = entry; 1157 entry = tp->cur_tx++ % TX_RING_SIZE; 1158 1159 } 1160 1161 tp->tx_buffers[entry].skb = NULL; 1162 tp->tx_buffers[entry].mapping = 1163 pci_map_single(tp->pdev, tp->setup_frame, 1164 sizeof(tp->setup_frame), 1165 PCI_DMA_TODEVICE); 1166 /* Put the setup frame on the Tx list. */ 1167 if (entry == TX_RING_SIZE-1) 1168 tx_flags |= DESC_RING_WRAP; /* Wrap ring. */ 1169 tp->tx_ring[entry].length = cpu_to_le32(tx_flags); 1170 tp->tx_ring[entry].buffer1 = 1171 cpu_to_le32(tp->tx_buffers[entry].mapping); 1172 tp->tx_ring[entry].status = cpu_to_le32(DescOwned); 1173 if (dummy >= 0) 1174 tp->tx_ring[dummy].status = cpu_to_le32(DescOwned); 1175 if (tp->cur_tx - tp->dirty_tx >= TX_RING_SIZE - 2) 1176 netif_stop_queue(dev); 1177 1178 /* Trigger an immediate transmit demand. */ 1179 iowrite32(0, ioaddr + CSR1); 1180 } 1181 1182 spin_unlock_irqrestore(&tp->lock, flags); 1183 } 1184 1185 iowrite32(csr6, ioaddr + CSR6); 1186 } 1187 1188 #ifdef CONFIG_TULIP_MWI 1189 static void tulip_mwi_config(struct pci_dev *pdev, struct net_device *dev) 1190 { 1191 struct tulip_private *tp = netdev_priv(dev); 1192 u8 cache; 1193 u16 pci_command; 1194 u32 csr0; 1195 1196 if (tulip_debug > 3) 1197 netdev_dbg(dev, "tulip_mwi_config()\n"); 1198 1199 tp->csr0 = csr0 = 0; 1200 1201 /* if we have any cache line size at all, we can do MRM and MWI */ 1202 csr0 |= MRM | MWI; 1203 1204 /* Enable MWI in the standard PCI command bit. 1205 * Check for the case where MWI is desired but not available 1206 */ 1207 pci_try_set_mwi(pdev); 1208 1209 /* read result from hardware (in case bit refused to enable) */ 1210 pci_read_config_word(pdev, PCI_COMMAND, &pci_command); 1211 if ((csr0 & MWI) && (!(pci_command & PCI_COMMAND_INVALIDATE))) 1212 csr0 &= ~MWI; 1213 1214 /* if cache line size hardwired to zero, no MWI */ 1215 pci_read_config_byte(pdev, PCI_CACHE_LINE_SIZE, &cache); 1216 if ((csr0 & MWI) && (cache == 0)) { 1217 csr0 &= ~MWI; 1218 pci_clear_mwi(pdev); 1219 } 1220 1221 /* assign per-cacheline-size cache alignment and 1222 * burst length values 1223 */ 1224 switch (cache) { 1225 case 8: 1226 csr0 |= MRL | (1 << CALShift) | (16 << BurstLenShift); 1227 break; 1228 case 16: 1229 csr0 |= MRL | (2 << CALShift) | (16 << BurstLenShift); 1230 break; 1231 case 32: 1232 csr0 |= MRL | (3 << CALShift) | (32 << BurstLenShift); 1233 break; 1234 default: 1235 cache = 0; 1236 break; 1237 } 1238 1239 /* if we have a good cache line size, we by now have a good 1240 * csr0, so save it and exit 1241 */ 1242 if (cache) 1243 goto out; 1244 1245 /* we don't have a good csr0 or cache line size, disable MWI */ 1246 if (csr0 & MWI) { 1247 pci_clear_mwi(pdev); 1248 csr0 &= ~MWI; 1249 } 1250 1251 /* sane defaults for burst length and cache alignment 1252 * originally from de4x5 driver 1253 */ 1254 csr0 |= (8 << BurstLenShift) | (1 << CALShift); 1255 1256 out: 1257 tp->csr0 = csr0; 1258 if (tulip_debug > 2) 1259 netdev_dbg(dev, "MWI config cacheline=%d, csr0=%08x\n", 1260 cache, csr0); 1261 } 1262 #endif 1263 1264 /* 1265 * Chips that have the MRM/reserved bit quirk and the burst quirk. That 1266 * is the DM910X and the on chip ULi devices 1267 */ 1268 1269 static int tulip_uli_dm_quirk(struct pci_dev *pdev) 1270 { 1271 if (pdev->vendor == 0x1282 && pdev->device == 0x9102) 1272 return 1; 1273 return 0; 1274 } 1275 1276 static const struct net_device_ops tulip_netdev_ops = { 1277 .ndo_open = tulip_open, 1278 .ndo_start_xmit = tulip_start_xmit, 1279 .ndo_tx_timeout = tulip_tx_timeout, 1280 .ndo_stop = tulip_close, 1281 .ndo_get_stats = tulip_get_stats, 1282 .ndo_do_ioctl = private_ioctl, 1283 .ndo_set_rx_mode = set_rx_mode, 1284 .ndo_set_mac_address = eth_mac_addr, 1285 .ndo_validate_addr = eth_validate_addr, 1286 #ifdef CONFIG_NET_POLL_CONTROLLER 1287 .ndo_poll_controller = poll_tulip, 1288 #endif 1289 }; 1290 1291 const struct pci_device_id early_486_chipsets[] = { 1292 { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82424) }, 1293 { PCI_DEVICE(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_496) }, 1294 { }, 1295 }; 1296 1297 static int tulip_init_one(struct pci_dev *pdev, const struct pci_device_id *ent) 1298 { 1299 struct tulip_private *tp; 1300 /* See note below on the multiport cards. */ 1301 static unsigned char last_phys_addr[ETH_ALEN] = { 1302 0x00, 'L', 'i', 'n', 'u', 'x' 1303 }; 1304 static int last_irq; 1305 int i, irq; 1306 unsigned short sum; 1307 unsigned char *ee_data; 1308 struct net_device *dev; 1309 void __iomem *ioaddr; 1310 static int board_idx = -1; 1311 int chip_idx = ent->driver_data; 1312 const char *chip_name = tulip_tbl[chip_idx].chip_name; 1313 unsigned int eeprom_missing = 0; 1314 unsigned int force_csr0 = 0; 1315 1316 #ifndef MODULE 1317 if (tulip_debug > 0) 1318 printk_once(KERN_INFO "%s", version); 1319 #endif 1320 1321 board_idx++; 1322 1323 /* 1324 * Lan media wire a tulip chip to a wan interface. Needs a very 1325 * different driver (lmc driver) 1326 */ 1327 1328 if (pdev->subsystem_vendor == PCI_VENDOR_ID_LMC) { 1329 pr_err("skipping LMC card\n"); 1330 return -ENODEV; 1331 } else if (pdev->subsystem_vendor == PCI_VENDOR_ID_SBE && 1332 (pdev->subsystem_device == PCI_SUBDEVICE_ID_SBE_T3E3 || 1333 pdev->subsystem_device == PCI_SUBDEVICE_ID_SBE_2T3E3_P0 || 1334 pdev->subsystem_device == PCI_SUBDEVICE_ID_SBE_2T3E3_P1)) { 1335 pr_err("skipping SBE T3E3 port\n"); 1336 return -ENODEV; 1337 } 1338 1339 /* 1340 * DM910x chips should be handled by the dmfe driver, except 1341 * on-board chips on SPARC systems. Also, early DM9100s need 1342 * software CRC which only the dmfe driver supports. 1343 */ 1344 1345 #ifdef CONFIG_TULIP_DM910X 1346 if (chip_idx == DM910X) { 1347 struct device_node *dp; 1348 1349 if (pdev->vendor == 0x1282 && pdev->device == 0x9100 && 1350 pdev->revision < 0x30) { 1351 pr_info("skipping early DM9100 with Crc bug (use dmfe)\n"); 1352 return -ENODEV; 1353 } 1354 1355 dp = pci_device_to_OF_node(pdev); 1356 if (!(dp && of_get_property(dp, "local-mac-address", NULL))) { 1357 pr_info("skipping DM910x expansion card (use dmfe)\n"); 1358 return -ENODEV; 1359 } 1360 } 1361 #endif 1362 1363 /* 1364 * Looks for early PCI chipsets where people report hangs 1365 * without the workarounds being on. 1366 */ 1367 1368 /* 1. Intel Saturn. Switch to 8 long words burst, 8 long word cache 1369 aligned. Aries might need this too. The Saturn errata are not 1370 pretty reading but thankfully it's an old 486 chipset. 1371 1372 2. The dreaded SiS496 486 chipset. Same workaround as Intel 1373 Saturn. 1374 */ 1375 1376 if (pci_dev_present(early_486_chipsets)) { 1377 csr0 = MRL | MRM | (8 << BurstLenShift) | (1 << CALShift); 1378 force_csr0 = 1; 1379 } 1380 1381 /* bugfix: the ASIX must have a burst limit or horrible things happen. */ 1382 if (chip_idx == AX88140) { 1383 if ((csr0 & 0x3f00) == 0) 1384 csr0 |= 0x2000; 1385 } 1386 1387 /* PNIC doesn't have MWI/MRL/MRM... */ 1388 if (chip_idx == LC82C168) 1389 csr0 &= ~0xfff10000; /* zero reserved bits 31:20, 16 */ 1390 1391 /* DM9102A has troubles with MRM & clear reserved bits 24:22, 20, 16, 7:1 */ 1392 if (tulip_uli_dm_quirk(pdev)) { 1393 csr0 &= ~0x01f100ff; 1394 #if defined(CONFIG_SPARC) 1395 csr0 = (csr0 & ~0xff00) | 0xe000; 1396 #endif 1397 } 1398 /* 1399 * And back to business 1400 */ 1401 1402 i = pci_enable_device(pdev); 1403 if (i) { 1404 pr_err("Cannot enable tulip board #%d, aborting\n", board_idx); 1405 return i; 1406 } 1407 1408 irq = pdev->irq; 1409 1410 /* alloc_etherdev ensures aligned and zeroed private structures */ 1411 dev = alloc_etherdev (sizeof (*tp)); 1412 if (!dev) 1413 return -ENOMEM; 1414 1415 SET_NETDEV_DEV(dev, &pdev->dev); 1416 if (pci_resource_len (pdev, 0) < tulip_tbl[chip_idx].io_size) { 1417 pr_err("%s: I/O region (0x%llx@0x%llx) too small, aborting\n", 1418 pci_name(pdev), 1419 (unsigned long long)pci_resource_len (pdev, 0), 1420 (unsigned long long)pci_resource_start (pdev, 0)); 1421 goto err_out_free_netdev; 1422 } 1423 1424 /* grab all resources from both PIO and MMIO regions, as we 1425 * don't want anyone else messing around with our hardware */ 1426 if (pci_request_regions (pdev, DRV_NAME)) 1427 goto err_out_free_netdev; 1428 1429 ioaddr = pci_iomap(pdev, TULIP_BAR, tulip_tbl[chip_idx].io_size); 1430 1431 if (!ioaddr) 1432 goto err_out_free_res; 1433 1434 /* 1435 * initialize private data structure 'tp' 1436 * it is zeroed and aligned in alloc_etherdev 1437 */ 1438 tp = netdev_priv(dev); 1439 tp->dev = dev; 1440 1441 tp->rx_ring = pci_alloc_consistent(pdev, 1442 sizeof(struct tulip_rx_desc) * RX_RING_SIZE + 1443 sizeof(struct tulip_tx_desc) * TX_RING_SIZE, 1444 &tp->rx_ring_dma); 1445 if (!tp->rx_ring) 1446 goto err_out_mtable; 1447 tp->tx_ring = (struct tulip_tx_desc *)(tp->rx_ring + RX_RING_SIZE); 1448 tp->tx_ring_dma = tp->rx_ring_dma + sizeof(struct tulip_rx_desc) * RX_RING_SIZE; 1449 1450 tp->chip_id = chip_idx; 1451 tp->flags = tulip_tbl[chip_idx].flags; 1452 1453 tp->wolinfo.supported = 0; 1454 tp->wolinfo.wolopts = 0; 1455 /* COMET: Enable power management only for AN983B */ 1456 if (chip_idx == COMET ) { 1457 u32 sig; 1458 pci_read_config_dword (pdev, 0x80, &sig); 1459 if (sig == 0x09811317) { 1460 tp->flags |= COMET_PM; 1461 tp->wolinfo.supported = WAKE_PHY | WAKE_MAGIC; 1462 pr_info("%s: Enabled WOL support for AN983B\n", 1463 __func__); 1464 } 1465 } 1466 tp->pdev = pdev; 1467 tp->base_addr = ioaddr; 1468 tp->revision = pdev->revision; 1469 tp->csr0 = csr0; 1470 spin_lock_init(&tp->lock); 1471 spin_lock_init(&tp->mii_lock); 1472 timer_setup(&tp->timer, tulip_tbl[tp->chip_id].media_timer, 0); 1473 1474 INIT_WORK(&tp->media_work, tulip_tbl[tp->chip_id].media_task); 1475 1476 #ifdef CONFIG_TULIP_MWI 1477 if (!force_csr0 && (tp->flags & HAS_PCI_MWI)) 1478 tulip_mwi_config (pdev, dev); 1479 #endif 1480 1481 /* Stop the chip's Tx and Rx processes. */ 1482 tulip_stop_rxtx(tp); 1483 1484 pci_set_master(pdev); 1485 1486 #ifdef CONFIG_GSC 1487 if (pdev->subsystem_vendor == PCI_VENDOR_ID_HP) { 1488 switch (pdev->subsystem_device) { 1489 default: 1490 break; 1491 case 0x1061: 1492 case 0x1062: 1493 case 0x1063: 1494 case 0x1098: 1495 case 0x1099: 1496 case 0x10EE: 1497 tp->flags |= HAS_SWAPPED_SEEPROM | NEEDS_FAKE_MEDIA_TABLE; 1498 chip_name = "GSC DS21140 Tulip"; 1499 } 1500 } 1501 #endif 1502 1503 /* Clear the missed-packet counter. */ 1504 ioread32(ioaddr + CSR8); 1505 1506 /* The station address ROM is read byte serially. The register must 1507 be polled, waiting for the value to be read bit serially from the 1508 EEPROM. 1509 */ 1510 ee_data = tp->eeprom; 1511 memset(ee_data, 0, sizeof(tp->eeprom)); 1512 sum = 0; 1513 if (chip_idx == LC82C168) { 1514 for (i = 0; i < 3; i++) { 1515 int value, boguscnt = 100000; 1516 iowrite32(0x600 | i, ioaddr + 0x98); 1517 do { 1518 value = ioread32(ioaddr + CSR9); 1519 } while (value < 0 && --boguscnt > 0); 1520 put_unaligned_le16(value, ((__le16 *)dev->dev_addr) + i); 1521 sum += value & 0xffff; 1522 } 1523 } else if (chip_idx == COMET) { 1524 /* No need to read the EEPROM. */ 1525 put_unaligned_le32(ioread32(ioaddr + 0xA4), dev->dev_addr); 1526 put_unaligned_le16(ioread32(ioaddr + 0xA8), dev->dev_addr + 4); 1527 for (i = 0; i < 6; i ++) 1528 sum += dev->dev_addr[i]; 1529 } else { 1530 /* A serial EEPROM interface, we read now and sort it out later. */ 1531 int sa_offset = 0; 1532 int ee_addr_size = tulip_read_eeprom(dev, 0xff, 8) & 0x40000 ? 8 : 6; 1533 int ee_max_addr = ((1 << ee_addr_size) - 1) * sizeof(u16); 1534 1535 if (ee_max_addr > sizeof(tp->eeprom)) 1536 ee_max_addr = sizeof(tp->eeprom); 1537 1538 for (i = 0; i < ee_max_addr ; i += sizeof(u16)) { 1539 u16 data = tulip_read_eeprom(dev, i/2, ee_addr_size); 1540 ee_data[i] = data & 0xff; 1541 ee_data[i + 1] = data >> 8; 1542 } 1543 1544 /* DEC now has a specification (see Notes) but early board makers 1545 just put the address in the first EEPROM locations. */ 1546 /* This does memcmp(ee_data, ee_data+16, 8) */ 1547 for (i = 0; i < 8; i ++) 1548 if (ee_data[i] != ee_data[16+i]) 1549 sa_offset = 20; 1550 if (chip_idx == CONEXANT) { 1551 /* Check that the tuple type and length is correct. */ 1552 if (ee_data[0x198] == 0x04 && ee_data[0x199] == 6) 1553 sa_offset = 0x19A; 1554 } else if (ee_data[0] == 0xff && ee_data[1] == 0xff && 1555 ee_data[2] == 0) { 1556 sa_offset = 2; /* Grrr, damn Matrox boards. */ 1557 } 1558 #ifdef CONFIG_MIPS_COBALT 1559 if ((pdev->bus->number == 0) && 1560 ((PCI_SLOT(pdev->devfn) == 7) || 1561 (PCI_SLOT(pdev->devfn) == 12))) { 1562 /* Cobalt MAC address in first EEPROM locations. */ 1563 sa_offset = 0; 1564 /* Ensure our media table fixup get's applied */ 1565 memcpy(ee_data + 16, ee_data, 8); 1566 } 1567 #endif 1568 #ifdef CONFIG_GSC 1569 /* Check to see if we have a broken srom */ 1570 if (ee_data[0] == 0x61 && ee_data[1] == 0x10) { 1571 /* pci_vendor_id and subsystem_id are swapped */ 1572 ee_data[0] = ee_data[2]; 1573 ee_data[1] = ee_data[3]; 1574 ee_data[2] = 0x61; 1575 ee_data[3] = 0x10; 1576 1577 /* HSC-PCI boards need to be byte-swaped and shifted 1578 * up 1 word. This shift needs to happen at the end 1579 * of the MAC first because of the 2 byte overlap. 1580 */ 1581 for (i = 4; i >= 0; i -= 2) { 1582 ee_data[17 + i + 3] = ee_data[17 + i]; 1583 ee_data[16 + i + 5] = ee_data[16 + i]; 1584 } 1585 } 1586 #endif 1587 1588 for (i = 0; i < 6; i ++) { 1589 dev->dev_addr[i] = ee_data[i + sa_offset]; 1590 sum += ee_data[i + sa_offset]; 1591 } 1592 } 1593 /* Lite-On boards have the address byte-swapped. */ 1594 if ((dev->dev_addr[0] == 0xA0 || 1595 dev->dev_addr[0] == 0xC0 || 1596 dev->dev_addr[0] == 0x02) && 1597 dev->dev_addr[1] == 0x00) 1598 for (i = 0; i < 6; i+=2) { 1599 char tmp = dev->dev_addr[i]; 1600 dev->dev_addr[i] = dev->dev_addr[i+1]; 1601 dev->dev_addr[i+1] = tmp; 1602 } 1603 /* On the Zynx 315 Etherarray and other multiport boards only the 1604 first Tulip has an EEPROM. 1605 On Sparc systems the mac address is held in the OBP property 1606 "local-mac-address". 1607 The addresses of the subsequent ports are derived from the first. 1608 Many PCI BIOSes also incorrectly report the IRQ line, so we correct 1609 that here as well. */ 1610 if (sum == 0 || sum == 6*0xff) { 1611 #if defined(CONFIG_SPARC) 1612 struct device_node *dp = pci_device_to_OF_node(pdev); 1613 const unsigned char *addr; 1614 int len; 1615 #endif 1616 eeprom_missing = 1; 1617 for (i = 0; i < 5; i++) 1618 dev->dev_addr[i] = last_phys_addr[i]; 1619 dev->dev_addr[i] = last_phys_addr[i] + 1; 1620 #if defined(CONFIG_SPARC) 1621 addr = of_get_property(dp, "local-mac-address", &len); 1622 if (addr && len == ETH_ALEN) 1623 memcpy(dev->dev_addr, addr, ETH_ALEN); 1624 #endif 1625 #if defined(__i386__) || defined(__x86_64__) /* Patch up x86 BIOS bug. */ 1626 if (last_irq) 1627 irq = last_irq; 1628 #endif 1629 } 1630 1631 for (i = 0; i < 6; i++) 1632 last_phys_addr[i] = dev->dev_addr[i]; 1633 last_irq = irq; 1634 1635 /* The lower four bits are the media type. */ 1636 if (board_idx >= 0 && board_idx < MAX_UNITS) { 1637 if (options[board_idx] & MEDIA_MASK) 1638 tp->default_port = options[board_idx] & MEDIA_MASK; 1639 if ((options[board_idx] & FullDuplex) || full_duplex[board_idx] > 0) 1640 tp->full_duplex = 1; 1641 if (mtu[board_idx] > 0) 1642 dev->mtu = mtu[board_idx]; 1643 } 1644 if (dev->mem_start & MEDIA_MASK) 1645 tp->default_port = dev->mem_start & MEDIA_MASK; 1646 if (tp->default_port) { 1647 pr_info(DRV_NAME "%d: Transceiver selection forced to %s\n", 1648 board_idx, medianame[tp->default_port & MEDIA_MASK]); 1649 tp->medialock = 1; 1650 if (tulip_media_cap[tp->default_port] & MediaAlwaysFD) 1651 tp->full_duplex = 1; 1652 } 1653 if (tp->full_duplex) 1654 tp->full_duplex_lock = 1; 1655 1656 if (tulip_media_cap[tp->default_port] & MediaIsMII) { 1657 static const u16 media2advert[] = { 1658 0x20, 0x40, 0x03e0, 0x60, 0x80, 0x100, 0x200 1659 }; 1660 tp->mii_advertise = media2advert[tp->default_port - 9]; 1661 tp->mii_advertise |= (tp->flags & HAS_8023X); /* Matching bits! */ 1662 } 1663 1664 if (tp->flags & HAS_MEDIA_TABLE) { 1665 sprintf(dev->name, DRV_NAME "%d", board_idx); /* hack */ 1666 tulip_parse_eeprom(dev); 1667 strcpy(dev->name, "eth%d"); /* un-hack */ 1668 } 1669 1670 if ((tp->flags & ALWAYS_CHECK_MII) || 1671 (tp->mtable && tp->mtable->has_mii) || 1672 ( ! tp->mtable && (tp->flags & HAS_MII))) { 1673 if (tp->mtable && tp->mtable->has_mii) { 1674 for (i = 0; i < tp->mtable->leafcount; i++) 1675 if (tp->mtable->mleaf[i].media == 11) { 1676 tp->cur_index = i; 1677 tp->saved_if_port = dev->if_port; 1678 tulip_select_media(dev, 2); 1679 dev->if_port = tp->saved_if_port; 1680 break; 1681 } 1682 } 1683 1684 /* Find the connected MII xcvrs. 1685 Doing this in open() would allow detecting external xcvrs 1686 later, but takes much time. */ 1687 tulip_find_mii (dev, board_idx); 1688 } 1689 1690 /* The Tulip-specific entries in the device structure. */ 1691 dev->netdev_ops = &tulip_netdev_ops; 1692 dev->watchdog_timeo = TX_TIMEOUT; 1693 #ifdef CONFIG_TULIP_NAPI 1694 netif_napi_add(dev, &tp->napi, tulip_poll, 16); 1695 #endif 1696 dev->ethtool_ops = &ops; 1697 1698 if (register_netdev(dev)) 1699 goto err_out_free_ring; 1700 1701 pci_set_drvdata(pdev, dev); 1702 1703 dev_info(&dev->dev, 1704 #ifdef CONFIG_TULIP_MMIO 1705 "%s rev %d at MMIO %#llx,%s %pM, IRQ %d\n", 1706 #else 1707 "%s rev %d at Port %#llx,%s %pM, IRQ %d\n", 1708 #endif 1709 chip_name, pdev->revision, 1710 (unsigned long long)pci_resource_start(pdev, TULIP_BAR), 1711 eeprom_missing ? " EEPROM not present," : "", 1712 dev->dev_addr, irq); 1713 1714 if (tp->chip_id == PNIC2) 1715 tp->link_change = pnic2_lnk_change; 1716 else if (tp->flags & HAS_NWAY) 1717 tp->link_change = t21142_lnk_change; 1718 else if (tp->flags & HAS_PNICNWAY) 1719 tp->link_change = pnic_lnk_change; 1720 1721 /* Reset the xcvr interface and turn on heartbeat. */ 1722 switch (chip_idx) { 1723 case DC21140: 1724 case DM910X: 1725 default: 1726 if (tp->mtable) 1727 iowrite32(tp->mtable->csr12dir | 0x100, ioaddr + CSR12); 1728 break; 1729 case DC21142: 1730 if (tp->mii_cnt || tulip_media_cap[dev->if_port] & MediaIsMII) { 1731 iowrite32(csr6_mask_defstate, ioaddr + CSR6); 1732 iowrite32(0x0000, ioaddr + CSR13); 1733 iowrite32(0x0000, ioaddr + CSR14); 1734 iowrite32(csr6_mask_hdcap, ioaddr + CSR6); 1735 } else 1736 t21142_start_nway(dev); 1737 break; 1738 case PNIC2: 1739 /* just do a reset for sanity sake */ 1740 iowrite32(0x0000, ioaddr + CSR13); 1741 iowrite32(0x0000, ioaddr + CSR14); 1742 break; 1743 case LC82C168: 1744 if ( ! tp->mii_cnt) { 1745 tp->nway = 1; 1746 tp->nwayset = 0; 1747 iowrite32(csr6_ttm | csr6_ca, ioaddr + CSR6); 1748 iowrite32(0x30, ioaddr + CSR12); 1749 iowrite32(0x0001F078, ioaddr + CSR6); 1750 iowrite32(0x0201F078, ioaddr + CSR6); /* Turn on autonegotiation. */ 1751 } 1752 break; 1753 case MX98713: 1754 case COMPEX9881: 1755 iowrite32(0x00000000, ioaddr + CSR6); 1756 iowrite32(0x000711C0, ioaddr + CSR14); /* Turn on NWay. */ 1757 iowrite32(0x00000001, ioaddr + CSR13); 1758 break; 1759 case MX98715: 1760 case MX98725: 1761 iowrite32(0x01a80000, ioaddr + CSR6); 1762 iowrite32(0xFFFFFFFF, ioaddr + CSR14); 1763 iowrite32(0x00001000, ioaddr + CSR12); 1764 break; 1765 case COMET: 1766 /* No initialization necessary. */ 1767 break; 1768 } 1769 1770 /* put the chip in snooze mode until opened */ 1771 tulip_set_power_state (tp, 0, 1); 1772 1773 return 0; 1774 1775 err_out_free_ring: 1776 pci_free_consistent (pdev, 1777 sizeof (struct tulip_rx_desc) * RX_RING_SIZE + 1778 sizeof (struct tulip_tx_desc) * TX_RING_SIZE, 1779 tp->rx_ring, tp->rx_ring_dma); 1780 1781 err_out_mtable: 1782 kfree (tp->mtable); 1783 pci_iounmap(pdev, ioaddr); 1784 1785 err_out_free_res: 1786 pci_release_regions (pdev); 1787 1788 err_out_free_netdev: 1789 free_netdev (dev); 1790 return -ENODEV; 1791 } 1792 1793 1794 /* set the registers according to the given wolopts */ 1795 static void tulip_set_wolopts (struct pci_dev *pdev, u32 wolopts) 1796 { 1797 struct net_device *dev = pci_get_drvdata(pdev); 1798 struct tulip_private *tp = netdev_priv(dev); 1799 void __iomem *ioaddr = tp->base_addr; 1800 1801 if (tp->flags & COMET_PM) { 1802 1803 unsigned int tmp; 1804 1805 tmp = ioread32(ioaddr + CSR18); 1806 tmp &= ~(comet_csr18_pmes_sticky | comet_csr18_apm_mode | comet_csr18_d3a); 1807 tmp |= comet_csr18_pm_mode; 1808 iowrite32(tmp, ioaddr + CSR18); 1809 1810 /* Set the Wake-up Control/Status Register to the given WOL options*/ 1811 tmp = ioread32(ioaddr + CSR13); 1812 tmp &= ~(comet_csr13_linkoffe | comet_csr13_linkone | comet_csr13_wfre | comet_csr13_lsce | comet_csr13_mpre); 1813 if (wolopts & WAKE_MAGIC) 1814 tmp |= comet_csr13_mpre; 1815 if (wolopts & WAKE_PHY) 1816 tmp |= comet_csr13_linkoffe | comet_csr13_linkone | comet_csr13_lsce; 1817 /* Clear the event flags */ 1818 tmp |= comet_csr13_wfr | comet_csr13_mpr | comet_csr13_lsc; 1819 iowrite32(tmp, ioaddr + CSR13); 1820 } 1821 } 1822 1823 #ifdef CONFIG_PM 1824 1825 1826 static int tulip_suspend (struct pci_dev *pdev, pm_message_t state) 1827 { 1828 pci_power_t pstate; 1829 struct net_device *dev = pci_get_drvdata(pdev); 1830 struct tulip_private *tp = netdev_priv(dev); 1831 1832 if (!dev) 1833 return -EINVAL; 1834 1835 if (!netif_running(dev)) 1836 goto save_state; 1837 1838 tulip_down(dev); 1839 1840 netif_device_detach(dev); 1841 /* FIXME: it needlessly adds an error path. */ 1842 free_irq(tp->pdev->irq, dev); 1843 1844 save_state: 1845 pci_save_state(pdev); 1846 pci_disable_device(pdev); 1847 pstate = pci_choose_state(pdev, state); 1848 if (state.event == PM_EVENT_SUSPEND && pstate != PCI_D0) { 1849 int rc; 1850 1851 tulip_set_wolopts(pdev, tp->wolinfo.wolopts); 1852 rc = pci_enable_wake(pdev, pstate, tp->wolinfo.wolopts); 1853 if (rc) 1854 pr_err("pci_enable_wake failed (%d)\n", rc); 1855 } 1856 pci_set_power_state(pdev, pstate); 1857 1858 return 0; 1859 } 1860 1861 1862 static int tulip_resume(struct pci_dev *pdev) 1863 { 1864 struct net_device *dev = pci_get_drvdata(pdev); 1865 struct tulip_private *tp = netdev_priv(dev); 1866 void __iomem *ioaddr = tp->base_addr; 1867 int retval; 1868 unsigned int tmp; 1869 1870 if (!dev) 1871 return -EINVAL; 1872 1873 pci_set_power_state(pdev, PCI_D0); 1874 pci_restore_state(pdev); 1875 1876 if (!netif_running(dev)) 1877 return 0; 1878 1879 if ((retval = pci_enable_device(pdev))) { 1880 pr_err("pci_enable_device failed in resume\n"); 1881 return retval; 1882 } 1883 1884 retval = request_irq(pdev->irq, tulip_interrupt, IRQF_SHARED, 1885 dev->name, dev); 1886 if (retval) { 1887 pr_err("request_irq failed in resume\n"); 1888 return retval; 1889 } 1890 1891 if (tp->flags & COMET_PM) { 1892 pci_enable_wake(pdev, PCI_D3hot, 0); 1893 pci_enable_wake(pdev, PCI_D3cold, 0); 1894 1895 /* Clear the PMES flag */ 1896 tmp = ioread32(ioaddr + CSR20); 1897 tmp |= comet_csr20_pmes; 1898 iowrite32(tmp, ioaddr + CSR20); 1899 1900 /* Disable all wake-up events */ 1901 tulip_set_wolopts(pdev, 0); 1902 } 1903 netif_device_attach(dev); 1904 1905 if (netif_running(dev)) 1906 tulip_up(dev); 1907 1908 return 0; 1909 } 1910 1911 #endif /* CONFIG_PM */ 1912 1913 1914 static void tulip_remove_one(struct pci_dev *pdev) 1915 { 1916 struct net_device *dev = pci_get_drvdata (pdev); 1917 struct tulip_private *tp; 1918 1919 if (!dev) 1920 return; 1921 1922 tp = netdev_priv(dev); 1923 unregister_netdev(dev); 1924 pci_free_consistent (pdev, 1925 sizeof (struct tulip_rx_desc) * RX_RING_SIZE + 1926 sizeof (struct tulip_tx_desc) * TX_RING_SIZE, 1927 tp->rx_ring, tp->rx_ring_dma); 1928 kfree (tp->mtable); 1929 pci_iounmap(pdev, tp->base_addr); 1930 free_netdev (dev); 1931 pci_release_regions (pdev); 1932 pci_disable_device(pdev); 1933 1934 /* pci_power_off (pdev, -1); */ 1935 } 1936 1937 #ifdef CONFIG_NET_POLL_CONTROLLER 1938 /* 1939 * Polling 'interrupt' - used by things like netconsole to send skbs 1940 * without having to re-enable interrupts. It's not called while 1941 * the interrupt routine is executing. 1942 */ 1943 1944 static void poll_tulip (struct net_device *dev) 1945 { 1946 struct tulip_private *tp = netdev_priv(dev); 1947 const int irq = tp->pdev->irq; 1948 1949 /* disable_irq here is not very nice, but with the lockless 1950 interrupt handler we have no other choice. */ 1951 disable_irq(irq); 1952 tulip_interrupt (irq, dev); 1953 enable_irq(irq); 1954 } 1955 #endif 1956 1957 static struct pci_driver tulip_driver = { 1958 .name = DRV_NAME, 1959 .id_table = tulip_pci_tbl, 1960 .probe = tulip_init_one, 1961 .remove = tulip_remove_one, 1962 #ifdef CONFIG_PM 1963 .suspend = tulip_suspend, 1964 .resume = tulip_resume, 1965 #endif /* CONFIG_PM */ 1966 }; 1967 1968 1969 static int __init tulip_init (void) 1970 { 1971 #ifdef MODULE 1972 pr_info("%s", version); 1973 #endif 1974 1975 if (!csr0) { 1976 pr_warn("tulip: unknown CPU architecture, using default csr0\n"); 1977 /* default to 8 longword cache line alignment */ 1978 csr0 = 0x00A00000 | 0x4800; 1979 } 1980 1981 /* copy module parms into globals */ 1982 tulip_rx_copybreak = rx_copybreak; 1983 tulip_max_interrupt_work = max_interrupt_work; 1984 1985 /* probe for and init boards */ 1986 return pci_register_driver(&tulip_driver); 1987 } 1988 1989 1990 static void __exit tulip_cleanup (void) 1991 { 1992 pci_unregister_driver (&tulip_driver); 1993 } 1994 1995 1996 module_init(tulip_init); 1997 module_exit(tulip_cleanup); 1998