1/* ne2k-pci.c: A NE2000 clone on PCI bus driver for Linux. */ 2/* 3 A Linux device driver for PCI NE2000 clones. 4 5 Authors and other copyright holders: 6 1992-2000 by Donald Becker, NE2000 core and various modifications. 7 1995-1998 by Paul Gortmaker, core modifications and PCI support. 8 Copyright 1993 assigned to the United States Government as represented 9 by the Director, National Security Agency. 10 11 This software may be used and distributed according to the terms of 12 the GNU General Public License (GPL), incorporated herein by reference. 13 Drivers based on or derived from this code fall under the GPL and must 14 retain the authorship, copyright and license notice. This file is not 15 a complete program and may only be used when the entire operating 16 system is licensed under the GPL. 17 18 The author may be reached as becker@scyld.com, or C/O 19 Scyld Computing Corporation 20 410 Severn Ave., Suite 210 21 Annapolis MD 21403 22 23 Issues remaining: 24 People are making PCI ne2000 clones! Oh the horror, the horror... 25 Limited full-duplex support. 26*/ 27 28#define DRV_NAME "ne2k-pci" 29#define DRV_VERSION "1.03" 30#define DRV_RELDATE "9/22/2003" 31 32 33/* The user-configurable values. 34 These may be modified when a driver module is loaded.*/ 35 36static int debug = 1; /* 1 normal messages, 0 quiet .. 7 verbose. */ 37 38#define MAX_UNITS 8 /* More are supported, limit only on options */ 39/* Used to pass the full-duplex flag, etc. */ 40static int full_duplex[MAX_UNITS]; 41static int options[MAX_UNITS]; 42 43/* Force a non std. amount of memory. Units are 256 byte pages. */ 44/* #define PACKETBUF_MEMSIZE 0x40 */ 45 46 47#include <linux/module.h> 48#include <linux/kernel.h> 49#include <linux/errno.h> 50#include <linux/pci.h> 51#include <linux/init.h> 52#include <linux/interrupt.h> 53#include <linux/ethtool.h> 54#include <linux/netdevice.h> 55#include <linux/etherdevice.h> 56 57#include <asm/system.h> 58#include <asm/io.h> 59#include <asm/irq.h> 60#include <asm/uaccess.h> 61 62#include "8390.h" 63 64/* These identify the driver base version and may not be removed. */ 65static const char version[] __devinitconst = 66 KERN_INFO DRV_NAME ".c:v" DRV_VERSION " " DRV_RELDATE 67 " D. Becker/P. Gortmaker\n"; 68 69#if defined(__powerpc__) 70#define inl_le(addr) le32_to_cpu(inl(addr)) 71#define inw_le(addr) le16_to_cpu(inw(addr)) 72#endif 73 74#define PFX DRV_NAME ": " 75 76MODULE_AUTHOR("Donald Becker / Paul Gortmaker"); 77MODULE_DESCRIPTION("PCI NE2000 clone driver"); 78MODULE_LICENSE("GPL"); 79 80module_param(debug, int, 0); 81module_param_array(options, int, NULL, 0); 82module_param_array(full_duplex, int, NULL, 0); 83MODULE_PARM_DESC(debug, "debug level (1-2)"); 84MODULE_PARM_DESC(options, "Bit 5: full duplex"); 85MODULE_PARM_DESC(full_duplex, "full duplex setting(s) (1)"); 86 87/* Some defines that people can play with if so inclined. */ 88 89/* Use 32 bit data-movement operations instead of 16 bit. */ 90#define USE_LONGIO 91 92/* Do we implement the read before write bugfix ? */ 93/* #define NE_RW_BUGFIX */ 94 95/* Flags. We rename an existing ei_status field to store flags! */ 96/* Thus only the low 8 bits are usable for non-init-time flags. */ 97#define ne2k_flags reg0 98enum { 99 ONLY_16BIT_IO=8, ONLY_32BIT_IO=4, /* Chip can do only 16/32-bit xfers. */ 100 FORCE_FDX=0x20, /* User override. */ 101 REALTEK_FDX=0x40, HOLTEK_FDX=0x80, 102 STOP_PG_0x60=0x100, 103}; 104 105enum ne2k_pci_chipsets { 106 CH_RealTek_RTL_8029 = 0, 107 CH_Winbond_89C940, 108 CH_Compex_RL2000, 109 CH_KTI_ET32P2, 110 CH_NetVin_NV5000SC, 111 CH_Via_86C926, 112 CH_SureCom_NE34, 113 CH_Winbond_W89C940F, 114 CH_Holtek_HT80232, 115 CH_Holtek_HT80229, 116 CH_Winbond_89C940_8c4a, 117}; 118 119 120static struct { 121 char *name; 122 int flags; 123} pci_clone_list[] __devinitdata = { 124 {"RealTek RTL-8029", REALTEK_FDX}, 125 {"Winbond 89C940", 0}, 126 {"Compex RL2000", 0}, 127 {"KTI ET32P2", 0}, 128 {"NetVin NV5000SC", 0}, 129 {"Via 86C926", ONLY_16BIT_IO}, 130 {"SureCom NE34", 0}, 131 {"Winbond W89C940F", 0}, 132 {"Holtek HT80232", ONLY_16BIT_IO | HOLTEK_FDX}, 133 {"Holtek HT80229", ONLY_32BIT_IO | HOLTEK_FDX | STOP_PG_0x60 }, 134 {"Winbond W89C940(misprogrammed)", 0}, 135 {NULL,} 136}; 137 138 139static DEFINE_PCI_DEVICE_TABLE(ne2k_pci_tbl) = { 140 { 0x10ec, 0x8029, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_RealTek_RTL_8029 }, 141 { 0x1050, 0x0940, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_Winbond_89C940 }, 142 { 0x11f6, 0x1401, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_Compex_RL2000 }, 143 { 0x8e2e, 0x3000, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_KTI_ET32P2 }, 144 { 0x4a14, 0x5000, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_NetVin_NV5000SC }, 145 { 0x1106, 0x0926, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_Via_86C926 }, 146 { 0x10bd, 0x0e34, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_SureCom_NE34 }, 147 { 0x1050, 0x5a5a, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_Winbond_W89C940F }, 148 { 0x12c3, 0x0058, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_Holtek_HT80232 }, 149 { 0x12c3, 0x5598, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_Holtek_HT80229 }, 150 { 0x8c4a, 0x1980, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_Winbond_89C940_8c4a }, 151 { 0, } 152}; 153MODULE_DEVICE_TABLE(pci, ne2k_pci_tbl); 154 155 156/* ---- No user-serviceable parts below ---- */ 157 158#define NE_BASE (dev->base_addr) 159#define NE_CMD 0x00 160#define NE_DATAPORT 0x10 /* NatSemi-defined port window offset. */ 161#define NE_RESET 0x1f /* Issue a read to reset, a write to clear. */ 162#define NE_IO_EXTENT 0x20 163 164#define NESM_START_PG 0x40 /* First page of TX buffer */ 165#define NESM_STOP_PG 0x80 /* Last page +1 of RX ring */ 166 167 168static int ne2k_pci_open(struct net_device *dev); 169static int ne2k_pci_close(struct net_device *dev); 170 171static void ne2k_pci_reset_8390(struct net_device *dev); 172static void ne2k_pci_get_8390_hdr(struct net_device *dev, struct e8390_pkt_hdr *hdr, 173 int ring_page); 174static void ne2k_pci_block_input(struct net_device *dev, int count, 175 struct sk_buff *skb, int ring_offset); 176static void ne2k_pci_block_output(struct net_device *dev, const int count, 177 const unsigned char *buf, const int start_page); 178static const struct ethtool_ops ne2k_pci_ethtool_ops; 179 180 181 182/* There is no room in the standard 8390 structure for extra info we need, 183 so we build a meta/outer-wrapper structure.. */ 184struct ne2k_pci_card { 185 struct net_device *dev; 186 struct pci_dev *pci_dev; 187}; 188 189 190 191/* 192 NEx000-clone boards have a Station Address (SA) PROM (SAPROM) in the packet 193 buffer memory space. By-the-spec NE2000 clones have 0x57,0x57 in bytes 194 0x0e,0x0f of the SAPROM, while other supposed NE2000 clones must be 195 detected by their SA prefix. 196 197 Reading the SAPROM from a word-wide card with the 8390 set in byte-wide 198 mode results in doubled values, which can be detected and compensated for. 199 200 The probe is also responsible for initializing the card and filling 201 in the 'dev' and 'ei_status' structures. 202*/ 203 204static const struct net_device_ops ne2k_netdev_ops = { 205 .ndo_open = ne2k_pci_open, 206 .ndo_stop = ne2k_pci_close, 207 .ndo_start_xmit = ei_start_xmit, 208 .ndo_tx_timeout = ei_tx_timeout, 209 .ndo_get_stats = ei_get_stats, 210 .ndo_set_multicast_list = ei_set_multicast_list, 211 .ndo_validate_addr = eth_validate_addr, 212 .ndo_set_mac_address = eth_mac_addr, 213 .ndo_change_mtu = eth_change_mtu, 214#ifdef CONFIG_NET_POLL_CONTROLLER 215 .ndo_poll_controller = ei_poll, 216#endif 217}; 218 219static int __devinit ne2k_pci_init_one (struct pci_dev *pdev, 220 const struct pci_device_id *ent) 221{ 222 struct net_device *dev; 223 int i; 224 unsigned char SA_prom[32]; 225 int start_page, stop_page; 226 int irq, reg0, chip_idx = ent->driver_data; 227 static unsigned int fnd_cnt; 228 long ioaddr; 229 int flags = pci_clone_list[chip_idx].flags; 230 231/* when built into the kernel, we only print version if device is found */ 232#ifndef MODULE 233 static int printed_version; 234 if (!printed_version++) 235 printk(version); 236#endif 237 238 fnd_cnt++; 239 240 i = pci_enable_device (pdev); 241 if (i) 242 return i; 243 244 ioaddr = pci_resource_start (pdev, 0); 245 irq = pdev->irq; 246 247 if (!ioaddr || ((pci_resource_flags (pdev, 0) & IORESOURCE_IO) == 0)) { 248 dev_err(&pdev->dev, "no I/O resource at PCI BAR #0\n"); 249 return -ENODEV; 250 } 251 252 if (request_region (ioaddr, NE_IO_EXTENT, DRV_NAME) == NULL) { 253 dev_err(&pdev->dev, "I/O resource 0x%x @ 0x%lx busy\n", 254 NE_IO_EXTENT, ioaddr); 255 return -EBUSY; 256 } 257 258 reg0 = inb(ioaddr); 259 if (reg0 == 0xFF) 260 goto err_out_free_res; 261 262 /* Do a preliminary verification that we have a 8390. */ 263 { 264 int regd; 265 outb(E8390_NODMA+E8390_PAGE1+E8390_STOP, ioaddr + E8390_CMD); 266 regd = inb(ioaddr + 0x0d); 267 outb(0xff, ioaddr + 0x0d); 268 outb(E8390_NODMA+E8390_PAGE0, ioaddr + E8390_CMD); 269 inb(ioaddr + EN0_COUNTER0); /* Clear the counter by reading. */ 270 if (inb(ioaddr + EN0_COUNTER0) != 0) { 271 outb(reg0, ioaddr); 272 outb(regd, ioaddr + 0x0d); /* Restore the old values. */ 273 goto err_out_free_res; 274 } 275 } 276 277 /* Allocate net_device, dev->priv; fill in 8390 specific dev fields. */ 278 dev = alloc_ei_netdev(); 279 if (!dev) { 280 dev_err(&pdev->dev, "cannot allocate ethernet device\n"); 281 goto err_out_free_res; 282 } 283 dev->netdev_ops = &ne2k_netdev_ops; 284 285 SET_NETDEV_DEV(dev, &pdev->dev); 286 287 /* Reset card. Who knows what dain-bramaged state it was left in. */ 288 { 289 unsigned long reset_start_time = jiffies; 290 291 outb(inb(ioaddr + NE_RESET), ioaddr + NE_RESET); 292 293 /* This looks like a horrible timing loop, but it should never take 294 more than a few cycles. 295 */ 296 while ((inb(ioaddr + EN0_ISR) & ENISR_RESET) == 0) 297 /* Limit wait: '2' avoids jiffy roll-over. */ 298 if (jiffies - reset_start_time > 2) { 299 dev_err(&pdev->dev, 300 "Card failure (no reset ack).\n"); 301 goto err_out_free_netdev; 302 } 303 304 outb(0xff, ioaddr + EN0_ISR); /* Ack all intr. */ 305 } 306 307 /* Read the 16 bytes of station address PROM. 308 We must first initialize registers, similar to NS8390_init(eifdev, 0). 309 We can't reliably read the SAPROM address without this. 310 (I learned the hard way!). */ 311 { 312 struct {unsigned char value, offset; } program_seq[] = { 313 {E8390_NODMA+E8390_PAGE0+E8390_STOP, E8390_CMD}, /* Select page 0*/ 314 {0x49, EN0_DCFG}, /* Set word-wide access. */ 315 {0x00, EN0_RCNTLO}, /* Clear the count regs. */ 316 {0x00, EN0_RCNTHI}, 317 {0x00, EN0_IMR}, /* Mask completion irq. */ 318 {0xFF, EN0_ISR}, 319 {E8390_RXOFF, EN0_RXCR}, /* 0x20 Set to monitor */ 320 {E8390_TXOFF, EN0_TXCR}, /* 0x02 and loopback mode. */ 321 {32, EN0_RCNTLO}, 322 {0x00, EN0_RCNTHI}, 323 {0x00, EN0_RSARLO}, /* DMA starting at 0x0000. */ 324 {0x00, EN0_RSARHI}, 325 {E8390_RREAD+E8390_START, E8390_CMD}, 326 }; 327 for (i = 0; i < ARRAY_SIZE(program_seq); i++) 328 outb(program_seq[i].value, ioaddr + program_seq[i].offset); 329 330 } 331 332 /* Note: all PCI cards have at least 16 bit access, so we don't have 333 to check for 8 bit cards. Most cards permit 32 bit access. */ 334 if (flags & ONLY_32BIT_IO) { 335 for (i = 0; i < 4 ; i++) 336 ((u32 *)SA_prom)[i] = le32_to_cpu(inl(ioaddr + NE_DATAPORT)); 337 } else 338 for(i = 0; i < 32 /*sizeof(SA_prom)*/; i++) 339 SA_prom[i] = inb(ioaddr + NE_DATAPORT); 340 341 /* We always set the 8390 registers for word mode. */ 342 outb(0x49, ioaddr + EN0_DCFG); 343 start_page = NESM_START_PG; 344 345 stop_page = flags & STOP_PG_0x60 ? 0x60 : NESM_STOP_PG; 346 347 /* Set up the rest of the parameters. */ 348 dev->irq = irq; 349 dev->base_addr = ioaddr; 350 pci_set_drvdata(pdev, dev); 351 352 ei_status.name = pci_clone_list[chip_idx].name; 353 ei_status.tx_start_page = start_page; 354 ei_status.stop_page = stop_page; 355 ei_status.word16 = 1; 356 ei_status.ne2k_flags = flags; 357 if (fnd_cnt < MAX_UNITS) { 358 if (full_duplex[fnd_cnt] > 0 || (options[fnd_cnt] & FORCE_FDX)) 359 ei_status.ne2k_flags |= FORCE_FDX; 360 } 361 362 ei_status.rx_start_page = start_page + TX_PAGES; 363#ifdef PACKETBUF_MEMSIZE 364 /* Allow the packet buffer size to be overridden by know-it-alls. */ 365 ei_status.stop_page = ei_status.tx_start_page + PACKETBUF_MEMSIZE; 366#endif 367 368 ei_status.reset_8390 = &ne2k_pci_reset_8390; 369 ei_status.block_input = &ne2k_pci_block_input; 370 ei_status.block_output = &ne2k_pci_block_output; 371 ei_status.get_8390_hdr = &ne2k_pci_get_8390_hdr; 372 ei_status.priv = (unsigned long) pdev; 373 374 dev->ethtool_ops = &ne2k_pci_ethtool_ops; 375 NS8390_init(dev, 0); 376 377 memcpy(dev->dev_addr, SA_prom, dev->addr_len); 378 memcpy(dev->perm_addr, dev->dev_addr, dev->addr_len); 379 380 i = register_netdev(dev); 381 if (i) 382 goto err_out_free_netdev; 383 384 printk("%s: %s found at %#lx, IRQ %d, %pM.\n", 385 dev->name, pci_clone_list[chip_idx].name, ioaddr, dev->irq, 386 dev->dev_addr); 387 388 return 0; 389 390err_out_free_netdev: 391 free_netdev (dev); 392err_out_free_res: 393 release_region (ioaddr, NE_IO_EXTENT); 394 pci_set_drvdata (pdev, NULL); 395 return -ENODEV; 396 397} 398 399/* 400 * Magic incantation sequence for full duplex on the supported cards. 401 */ 402static inline int set_realtek_fdx(struct net_device *dev) 403{ 404 long ioaddr = dev->base_addr; 405 406 outb(0xC0 + E8390_NODMA, ioaddr + NE_CMD); /* Page 3 */ 407 outb(0xC0, ioaddr + 0x01); /* Enable writes to CONFIG3 */ 408 outb(0x40, ioaddr + 0x06); /* Enable full duplex */ 409 outb(0x00, ioaddr + 0x01); /* Disable writes to CONFIG3 */ 410 outb(E8390_PAGE0 + E8390_NODMA, ioaddr + NE_CMD); /* Page 0 */ 411 return 0; 412} 413 414static inline int set_holtek_fdx(struct net_device *dev) 415{ 416 long ioaddr = dev->base_addr; 417 418 outb(inb(ioaddr + 0x20) | 0x80, ioaddr + 0x20); 419 return 0; 420} 421 422static int ne2k_pci_set_fdx(struct net_device *dev) 423{ 424 if (ei_status.ne2k_flags & REALTEK_FDX) 425 return set_realtek_fdx(dev); 426 else if (ei_status.ne2k_flags & HOLTEK_FDX) 427 return set_holtek_fdx(dev); 428 429 return -EOPNOTSUPP; 430} 431 432static int ne2k_pci_open(struct net_device *dev) 433{ 434 int ret = request_irq(dev->irq, ei_interrupt, IRQF_SHARED, dev->name, dev); 435 if (ret) 436 return ret; 437 438 if (ei_status.ne2k_flags & FORCE_FDX) 439 ne2k_pci_set_fdx(dev); 440 441 ei_open(dev); 442 return 0; 443} 444 445static int ne2k_pci_close(struct net_device *dev) 446{ 447 ei_close(dev); 448 free_irq(dev->irq, dev); 449 return 0; 450} 451 452/* Hard reset the card. This used to pause for the same period that a 453 8390 reset command required, but that shouldn't be necessary. */ 454static void ne2k_pci_reset_8390(struct net_device *dev) 455{ 456 unsigned long reset_start_time = jiffies; 457 458 if (debug > 1) printk("%s: Resetting the 8390 t=%ld...", 459 dev->name, jiffies); 460 461 outb(inb(NE_BASE + NE_RESET), NE_BASE + NE_RESET); 462 463 ei_status.txing = 0; 464 ei_status.dmaing = 0; 465 466 /* This check _should_not_ be necessary, omit eventually. */ 467 while ((inb(NE_BASE+EN0_ISR) & ENISR_RESET) == 0) 468 if (jiffies - reset_start_time > 2) { 469 printk("%s: ne2k_pci_reset_8390() did not complete.\n", dev->name); 470 break; 471 } 472 outb(ENISR_RESET, NE_BASE + EN0_ISR); /* Ack intr. */ 473} 474 475/* Grab the 8390 specific header. Similar to the block_input routine, but 476 we don't need to be concerned with ring wrap as the header will be at 477 the start of a page, so we optimize accordingly. */ 478 479static void ne2k_pci_get_8390_hdr(struct net_device *dev, struct e8390_pkt_hdr *hdr, int ring_page) 480{ 481 482 long nic_base = dev->base_addr; 483 484 /* This *shouldn't* happen. If it does, it's the last thing you'll see */ 485 if (ei_status.dmaing) { 486 printk("%s: DMAing conflict in ne2k_pci_get_8390_hdr " 487 "[DMAstat:%d][irqlock:%d].\n", 488 dev->name, ei_status.dmaing, ei_status.irqlock); 489 return; 490 } 491 492 ei_status.dmaing |= 0x01; 493 outb(E8390_NODMA+E8390_PAGE0+E8390_START, nic_base+ NE_CMD); 494 outb(sizeof(struct e8390_pkt_hdr), nic_base + EN0_RCNTLO); 495 outb(0, nic_base + EN0_RCNTHI); 496 outb(0, nic_base + EN0_RSARLO); /* On page boundary */ 497 outb(ring_page, nic_base + EN0_RSARHI); 498 outb(E8390_RREAD+E8390_START, nic_base + NE_CMD); 499 500 if (ei_status.ne2k_flags & ONLY_16BIT_IO) { 501 insw(NE_BASE + NE_DATAPORT, hdr, sizeof(struct e8390_pkt_hdr)>>1); 502 } else { 503 *(u32*)hdr = le32_to_cpu(inl(NE_BASE + NE_DATAPORT)); 504 le16_to_cpus(&hdr->count); 505 } 506 507 outb(ENISR_RDC, nic_base + EN0_ISR); /* Ack intr. */ 508 ei_status.dmaing &= ~0x01; 509} 510 511/* Block input and output, similar to the Crynwr packet driver. If you 512 are porting to a new ethercard, look at the packet driver source for hints. 513 The NEx000 doesn't share the on-board packet memory -- you have to put 514 the packet out through the "remote DMA" dataport using outb. */ 515 516static void ne2k_pci_block_input(struct net_device *dev, int count, 517 struct sk_buff *skb, int ring_offset) 518{ 519 long nic_base = dev->base_addr; 520 char *buf = skb->data; 521 522 /* This *shouldn't* happen. If it does, it's the last thing you'll see */ 523 if (ei_status.dmaing) { 524 printk("%s: DMAing conflict in ne2k_pci_block_input " 525 "[DMAstat:%d][irqlock:%d].\n", 526 dev->name, ei_status.dmaing, ei_status.irqlock); 527 return; 528 } 529 ei_status.dmaing |= 0x01; 530 if (ei_status.ne2k_flags & ONLY_32BIT_IO) 531 count = (count + 3) & 0xFFFC; 532 outb(E8390_NODMA+E8390_PAGE0+E8390_START, nic_base+ NE_CMD); 533 outb(count & 0xff, nic_base + EN0_RCNTLO); 534 outb(count >> 8, nic_base + EN0_RCNTHI); 535 outb(ring_offset & 0xff, nic_base + EN0_RSARLO); 536 outb(ring_offset >> 8, nic_base + EN0_RSARHI); 537 outb(E8390_RREAD+E8390_START, nic_base + NE_CMD); 538 539 if (ei_status.ne2k_flags & ONLY_16BIT_IO) { 540 insw(NE_BASE + NE_DATAPORT,buf,count>>1); 541 if (count & 0x01) { 542 buf[count-1] = inb(NE_BASE + NE_DATAPORT); 543 } 544 } else { 545 insl(NE_BASE + NE_DATAPORT, buf, count>>2); 546 if (count & 3) { 547 buf += count & ~3; 548 if (count & 2) { 549 __le16 *b = (__le16 *)buf; 550 551 *b++ = cpu_to_le16(inw(NE_BASE + NE_DATAPORT)); 552 buf = (char *)b; 553 } 554 if (count & 1) 555 *buf = inb(NE_BASE + NE_DATAPORT); 556 } 557 } 558 559 outb(ENISR_RDC, nic_base + EN0_ISR); /* Ack intr. */ 560 ei_status.dmaing &= ~0x01; 561} 562 563static void ne2k_pci_block_output(struct net_device *dev, int count, 564 const unsigned char *buf, const int start_page) 565{ 566 long nic_base = NE_BASE; 567 unsigned long dma_start; 568 569 /* On little-endian it's always safe to round the count up for 570 word writes. */ 571 if (ei_status.ne2k_flags & ONLY_32BIT_IO) 572 count = (count + 3) & 0xFFFC; 573 else 574 if (count & 0x01) 575 count++; 576 577 /* This *shouldn't* happen. If it does, it's the last thing you'll see */ 578 if (ei_status.dmaing) { 579 printk("%s: DMAing conflict in ne2k_pci_block_output." 580 "[DMAstat:%d][irqlock:%d]\n", 581 dev->name, ei_status.dmaing, ei_status.irqlock); 582 return; 583 } 584 ei_status.dmaing |= 0x01; 585 /* We should already be in page 0, but to be safe... */ 586 outb(E8390_PAGE0+E8390_START+E8390_NODMA, nic_base + NE_CMD); 587 588#ifdef NE8390_RW_BUGFIX 589 /* Handle the read-before-write bug the same way as the 590 Crynwr packet driver -- the NatSemi method doesn't work. 591 Actually this doesn't always work either, but if you have 592 problems with your NEx000 this is better than nothing! */ 593 outb(0x42, nic_base + EN0_RCNTLO); 594 outb(0x00, nic_base + EN0_RCNTHI); 595 outb(0x42, nic_base + EN0_RSARLO); 596 outb(0x00, nic_base + EN0_RSARHI); 597 outb(E8390_RREAD+E8390_START, nic_base + NE_CMD); 598#endif 599 outb(ENISR_RDC, nic_base + EN0_ISR); 600 601 /* Now the normal output. */ 602 outb(count & 0xff, nic_base + EN0_RCNTLO); 603 outb(count >> 8, nic_base + EN0_RCNTHI); 604 outb(0x00, nic_base + EN0_RSARLO); 605 outb(start_page, nic_base + EN0_RSARHI); 606 outb(E8390_RWRITE+E8390_START, nic_base + NE_CMD); 607 if (ei_status.ne2k_flags & ONLY_16BIT_IO) { 608 outsw(NE_BASE + NE_DATAPORT, buf, count>>1); 609 } else { 610 outsl(NE_BASE + NE_DATAPORT, buf, count>>2); 611 if (count & 3) { 612 buf += count & ~3; 613 if (count & 2) { 614 __le16 *b = (__le16 *)buf; 615 616 outw(le16_to_cpu(*b++), NE_BASE + NE_DATAPORT); 617 buf = (char *)b; 618 } 619 } 620 } 621 622 dma_start = jiffies; 623 624 while ((inb(nic_base + EN0_ISR) & ENISR_RDC) == 0) 625 if (jiffies - dma_start > 2) { /* Avoid clock roll-over. */ 626 printk(KERN_WARNING "%s: timeout waiting for Tx RDC.\n", dev->name); 627 ne2k_pci_reset_8390(dev); 628 NS8390_init(dev,1); 629 break; 630 } 631 632 outb(ENISR_RDC, nic_base + EN0_ISR); /* Ack intr. */ 633 ei_status.dmaing &= ~0x01; 634} 635 636static void ne2k_pci_get_drvinfo(struct net_device *dev, 637 struct ethtool_drvinfo *info) 638{ 639 struct ei_device *ei = netdev_priv(dev); 640 struct pci_dev *pci_dev = (struct pci_dev *) ei->priv; 641 642 strcpy(info->driver, DRV_NAME); 643 strcpy(info->version, DRV_VERSION); 644 strcpy(info->bus_info, pci_name(pci_dev)); 645} 646 647static const struct ethtool_ops ne2k_pci_ethtool_ops = { 648 .get_drvinfo = ne2k_pci_get_drvinfo, 649}; 650 651static void __devexit ne2k_pci_remove_one (struct pci_dev *pdev) 652{ 653 struct net_device *dev = pci_get_drvdata(pdev); 654 655 BUG_ON(!dev); 656 unregister_netdev(dev); 657 release_region(dev->base_addr, NE_IO_EXTENT); 658 free_netdev(dev); 659 pci_disable_device(pdev); 660 pci_set_drvdata(pdev, NULL); 661} 662 663#ifdef CONFIG_PM 664static int ne2k_pci_suspend (struct pci_dev *pdev, pm_message_t state) 665{ 666 struct net_device *dev = pci_get_drvdata (pdev); 667 668 netif_device_detach(dev); 669 pci_save_state(pdev); 670 pci_disable_device(pdev); 671 pci_set_power_state(pdev, pci_choose_state(pdev, state)); 672 673 return 0; 674} 675 676static int ne2k_pci_resume (struct pci_dev *pdev) 677{ 678 struct net_device *dev = pci_get_drvdata (pdev); 679 int rc; 680 681 pci_set_power_state(pdev, 0); 682 pci_restore_state(pdev); 683 684 rc = pci_enable_device(pdev); 685 if (rc) 686 return rc; 687 688 NS8390_init(dev, 1); 689 netif_device_attach(dev); 690 691 return 0; 692} 693 694#endif /* CONFIG_PM */ 695 696 697static struct pci_driver ne2k_driver = { 698 .name = DRV_NAME, 699 .probe = ne2k_pci_init_one, 700 .remove = __devexit_p(ne2k_pci_remove_one), 701 .id_table = ne2k_pci_tbl, 702#ifdef CONFIG_PM 703 .suspend = ne2k_pci_suspend, 704 .resume = ne2k_pci_resume, 705#endif /* CONFIG_PM */ 706 707}; 708 709 710static int __init ne2k_pci_init(void) 711{ 712/* when a module, this is printed whether or not devices are found in probe */ 713#ifdef MODULE 714 printk(version); 715#endif 716 return pci_register_driver(&ne2k_driver); 717} 718 719 720static void __exit ne2k_pci_cleanup(void) 721{ 722 pci_unregister_driver (&ne2k_driver); 723} 724 725module_init(ne2k_pci_init); 726module_exit(ne2k_pci_cleanup); 727