1 /* 3c509.c: A 3c509 EtherLink3 ethernet driver for linux. */
3 Written 1993-2000 by Donald Becker.
5 Copyright 1994-2000 by Donald Becker.
6 Copyright 1993 United States Government as represented by the
7 Director, National Security Agency. This software may be used and
8 distributed according to the terms of the GNU General Public License,
9 incorporated herein by reference.
11 This driver is for the 3Com EtherLinkIII series.
13 The author may be reached as becker@scyld.com, or C/O
14 Scyld Computing Corporation
15 410 Severn Ave., Suite 210
19 Because of the way 3c509 ISA detection works it's difficult to predict
20 a priori which of several ISA-mode cards will be detected first.
22 This driver does not use predictive interrupt mode, resulting in higher
23 packet latency but lower overhead. If interrupts are disabled for an
24 unusually long time it could also result in missed packets, but in
25 practice this rarely happens.
29 Alan Cox: Removed the 'Unexpected interrupt' bug.
30 Michael Meskes: Upgraded to Donald Becker's version 1.07.
31 Alan Cox: Increased the eeprom delay. Regardless of
32 what the docs say some people definitely
33 get problems with lower (but in card spec)
35 v1.10 4/21/97 Fixed module code so that multiple cards may be detected,
37 Andrea Arcangeli: Upgraded to Donald Becker's version 1.12.
38 Rick Payne: Fixed SMP race condition
39 v1.13 9/8/97 Made 'max_interrupt_work' an insmod-settable variable -djb
40 v1.14 10/15/97 Avoided waiting..discard message for fast machines -djb
41 v1.15 1/31/98 Faster recovery for Tx errors. -djb
42 v1.16 2/3/98 Different ID port handling to avoid sound cards. -djb
43 v1.18 12Mar2001 Andrew Morton <andrewm@uow.edu.au>
44 - Avoid bogus detect of 3c590's (Andrzej Krzysztofowicz)
45 - Reviewed against 1.18 from scyld.com
46 v1.18a 17Nov2001 Jeff Garzik <jgarzik@pobox.com>
48 v1.18b 1Mar2002 Zwane Mwaikambo <zwane@commfireservices.com>
49 - Power Management support
50 v1.18c 1Mar2002 David Ruggiero <jdr@farfalle.com>
52 v1.19 16Oct2002 Zwane Mwaikambo <zwane@linuxpower.ca>
53 - Additional ethtool features
54 v1.19a 28Oct2002 Davud Ruggiero <jdr@farfalle.com>
55 - Increase *read_eeprom udelay to workaround oops with 2 cards.
56 v1.19b 08Nov2002 Marc Zyngier <maz@wild-wind.fr.eu.org>
57 - Introduce driver model for EISA cards.
60 #define DRV_NAME "3c509"
61 #define DRV_VERSION "1.19b"
62 #define DRV_RELDATE "08Nov2002"
64 /* A few values that may be tweaked. */
66 /* Time in jiffies before concluding the transmitter is hung. */
67 #define TX_TIMEOUT (400*HZ/1000)
68 /* Maximum events (Rx packets, etc.) to handle at each interrupt. */
69 static int max_interrupt_work = 10;
71 #include <linux/module.h>
73 #include <linux/mca.h>
75 #include <linux/isapnp.h>
76 #include <linux/string.h>
77 #include <linux/interrupt.h>
78 #include <linux/errno.h>
80 #include <linux/slab.h>
81 #include <linux/ioport.h>
82 #include <linux/init.h>
83 #include <linux/netdevice.h>
84 #include <linux/etherdevice.h>
86 #include <linux/skbuff.h>
87 #include <linux/delay.h> /* for udelay() */
88 #include <linux/spinlock.h>
89 #include <linux/ethtool.h>
90 #include <linux/device.h>
91 #include <linux/eisa.h>
92 #include <linux/bitops.h>
94 #include <asm/uaccess.h>
98 static char version[] __initdata = DRV_NAME ".c:" DRV_VERSION " " DRV_RELDATE " becker@scyld.com\n";
100 #if defined(CONFIG_PM) && (defined(CONFIG_MCA) || defined(CONFIG_EISA))
105 static int el3_debug = EL3_DEBUG;
107 static int el3_debug = 2;
110 /* Used to do a global count of all the cards in the system. Must be
111 * a global variable so that the mca/eisa probe routines can increment
113 static int el3_cards = 0;
115 /* To minimize the size of the driver source I only define operating
116 constants if they are used several times. You'll need the manual
117 anyway if you want to understand driver details. */
118 /* Offsets from base I/O address. */
119 #define EL3_DATA 0x00
121 #define EL3_STATUS 0x0e
122 #define EEPROM_READ 0x80
124 #define EL3_IO_EXTENT 16
126 #define EL3WINDOW(win_num) outw(SelectWindow + (win_num), ioaddr + EL3_CMD)
129 /* The top five bits written to EL3_CMD are a command, the lower
130 11 bits are the parameter, if applicable. */
132 TotalReset = 0<<11, SelectWindow = 1<<11, StartCoax = 2<<11,
133 RxDisable = 3<<11, RxEnable = 4<<11, RxReset = 5<<11, RxDiscard = 8<<11,
134 TxEnable = 9<<11, TxDisable = 10<<11, TxReset = 11<<11,
135 FakeIntr = 12<<11, AckIntr = 13<<11, SetIntrEnb = 14<<11,
136 SetStatusEnb = 15<<11, SetRxFilter = 16<<11, SetRxThreshold = 17<<11,
137 SetTxThreshold = 18<<11, SetTxStart = 19<<11, StatsEnable = 21<<11,
138 StatsDisable = 22<<11, StopCoax = 23<<11, PowerUp = 27<<11,
139 PowerDown = 28<<11, PowerAuto = 29<<11};
142 IntLatch = 0x0001, AdapterFailure = 0x0002, TxComplete = 0x0004,
143 TxAvailable = 0x0008, RxComplete = 0x0010, RxEarly = 0x0020,
144 IntReq = 0x0040, StatsFull = 0x0080, CmdBusy = 0x1000, };
146 /* The SetRxFilter command accepts the following classes: */
148 RxStation = 1, RxMulticast = 2, RxBroadcast = 4, RxProm = 8 };
150 /* Register window 1 offsets, the window used in normal operation. */
153 #define RX_STATUS 0x08
154 #define TX_STATUS 0x0B
155 #define TX_FREE 0x0C /* Remaining free bytes in Tx buffer. */
157 #define WN0_CONF_CTRL 0x04 /* Window 0: Configuration control register */
158 #define WN0_ADDR_CONF 0x06 /* Window 0: Address configuration register */
159 #define WN0_IRQ 0x08 /* Window 0: Set IRQ line in bits 12-15. */
160 #define WN4_MEDIA 0x0A /* Window 4: Various transcvr/media bits. */
161 #define MEDIA_TP 0x00C0 /* Enable link beat and jabber for 10baseT. */
162 #define WN4_NETDIAG 0x06 /* Window 4: Net diagnostic */
163 #define FD_ENABLE 0x8000 /* Enable full-duplex ("external loopback") */
166 * Must be a power of two (we use a binary and in the
169 #define SKB_QUEUE_SIZE 64
172 struct net_device_stats stats;
173 struct net_device *next_dev;
177 struct sk_buff *queue[SKB_QUEUE_SIZE];
182 } type; /* type of device */
185 static int id_port __initdata = 0x110; /* Start with 0x110 to avoid new sound cards.*/
186 static struct net_device *el3_root_dev;
188 static ushort id_read_eeprom(int index);
189 static ushort read_eeprom(int ioaddr, int index);
190 static int el3_open(struct net_device *dev);
191 static int el3_start_xmit(struct sk_buff *skb, struct net_device *dev);
192 static irqreturn_t el3_interrupt(int irq, void *dev_id);
193 static void update_stats(struct net_device *dev);
194 static struct net_device_stats *el3_get_stats(struct net_device *dev);
195 static int el3_rx(struct net_device *dev);
196 static int el3_close(struct net_device *dev);
197 static void set_multicast_list(struct net_device *dev);
198 static void el3_tx_timeout (struct net_device *dev);
199 static void el3_down(struct net_device *dev);
200 static void el3_up(struct net_device *dev);
201 static const struct ethtool_ops ethtool_ops;
203 static int el3_suspend(struct device *, pm_message_t);
204 static int el3_resume(struct device *);
206 #define el3_suspend NULL
207 #define el3_resume NULL
211 /* generic device remove for all device types */
212 #if defined(CONFIG_EISA) || defined(CONFIG_MCA)
213 static int el3_device_remove (struct device *device);
215 #ifdef CONFIG_NET_POLL_CONTROLLER
216 static void el3_poll_controller(struct net_device *dev);
220 static struct eisa_device_id el3_eisa_ids[] = {
226 MODULE_DEVICE_TABLE(eisa, el3_eisa_ids);
228 static int el3_eisa_probe (struct device *device);
230 static struct eisa_driver el3_eisa_driver = {
231 .id_table = el3_eisa_ids,
234 .probe = el3_eisa_probe,
235 .remove = __devexit_p (el3_device_remove),
236 .suspend = el3_suspend,
237 .resume = el3_resume,
243 static int el3_mca_probe(struct device *dev);
245 static short el3_mca_adapter_ids[] __initdata = {
254 static char *el3_mca_adapter_names[] __initdata = {
255 "3Com 3c529 EtherLink III (10base2)",
256 "3Com 3c529 EtherLink III (10baseT)",
257 "3Com 3c529 EtherLink III (test mode)",
258 "3Com 3c529 EtherLink III (TP or coax)",
259 "3Com 3c529 EtherLink III (TP)",
263 static struct mca_driver el3_mca_driver = {
264 .id_table = el3_mca_adapter_ids,
267 .bus = &mca_bus_type,
268 .probe = el3_mca_probe,
269 .remove = __devexit_p(el3_device_remove),
270 .suspend = el3_suspend,
271 .resume = el3_resume,
274 #endif /* CONFIG_MCA */
276 #if defined(__ISAPNP__)
277 static struct isapnp_device_id el3_isapnp_adapters[] __initdata = {
278 { ISAPNP_ANY_ID, ISAPNP_ANY_ID,
279 ISAPNP_VENDOR('T', 'C', 'M'), ISAPNP_FUNCTION(0x5090),
280 (long) "3Com Etherlink III (TP)" },
281 { ISAPNP_ANY_ID, ISAPNP_ANY_ID,
282 ISAPNP_VENDOR('T', 'C', 'M'), ISAPNP_FUNCTION(0x5091),
283 (long) "3Com Etherlink III" },
284 { ISAPNP_ANY_ID, ISAPNP_ANY_ID,
285 ISAPNP_VENDOR('T', 'C', 'M'), ISAPNP_FUNCTION(0x5094),
286 (long) "3Com Etherlink III (combo)" },
287 { ISAPNP_ANY_ID, ISAPNP_ANY_ID,
288 ISAPNP_VENDOR('T', 'C', 'M'), ISAPNP_FUNCTION(0x5095),
289 (long) "3Com Etherlink III (TPO)" },
290 { ISAPNP_ANY_ID, ISAPNP_ANY_ID,
291 ISAPNP_VENDOR('T', 'C', 'M'), ISAPNP_FUNCTION(0x5098),
292 (long) "3Com Etherlink III (TPC)" },
293 { ISAPNP_ANY_ID, ISAPNP_ANY_ID,
294 ISAPNP_VENDOR('P', 'N', 'P'), ISAPNP_FUNCTION(0x80f7),
295 (long) "3Com Etherlink III compatible" },
296 { ISAPNP_ANY_ID, ISAPNP_ANY_ID,
297 ISAPNP_VENDOR('P', 'N', 'P'), ISAPNP_FUNCTION(0x80f8),
298 (long) "3Com Etherlink III compatible" },
299 { } /* terminate list */
302 static u16 el3_isapnp_phys_addr[8][3];
304 #endif /* __ISAPNP__ */
306 /* With the driver model introduction for EISA devices, both init
307 * and cleanup have been split :
308 * - EISA devices probe/remove starts in el3_eisa_probe/el3_device_remove
309 * - MCA/ISA still use el3_probe
311 * Both call el3_common_init/el3_common_remove. */
313 static int __init el3_common_init(struct net_device *dev)
315 struct el3_private *lp = netdev_priv(dev);
319 spin_lock_init(&lp->lock);
321 if (dev->mem_start & 0x05) { /* xcvr codes 1/3/4/12 */
322 dev->if_port = (dev->mem_start & 0x0f);
323 } else { /* xcvr codes 0/8 */
324 /* use eeprom value, but save user's full-duplex selection */
325 dev->if_port |= (dev->mem_start & 0x08);
328 /* The EL3-specific entries in the device structure. */
329 dev->open = &el3_open;
330 dev->hard_start_xmit = &el3_start_xmit;
331 dev->stop = &el3_close;
332 dev->get_stats = &el3_get_stats;
333 dev->set_multicast_list = &set_multicast_list;
334 dev->tx_timeout = el3_tx_timeout;
335 dev->watchdog_timeo = TX_TIMEOUT;
336 #ifdef CONFIG_NET_POLL_CONTROLLER
337 dev->poll_controller = el3_poll_controller;
339 SET_ETHTOOL_OPS(dev, ðtool_ops);
341 err = register_netdev(dev);
343 printk(KERN_ERR "Failed to register 3c5x9 at %#3.3lx, IRQ %d.\n",
344 dev->base_addr, dev->irq);
345 release_region(dev->base_addr, EL3_IO_EXTENT);
350 const char *if_names[] = {"10baseT", "AUI", "undefined", "BNC"};
351 printk("%s: 3c5x9 found at %#3.3lx, %s port, address ",
352 dev->name, dev->base_addr,
353 if_names[(dev->if_port & 0x03)]);
356 /* Read in the station address. */
357 for (i = 0; i < 6; i++)
358 printk(" %2.2x", dev->dev_addr[i]);
359 printk(", IRQ %d.\n", dev->irq);
362 printk(KERN_INFO "%s", version);
367 static void el3_common_remove (struct net_device *dev)
369 struct el3_private *lp = netdev_priv(dev);
371 (void) lp; /* Keep gcc quiet... */
372 #if defined(__ISAPNP__)
373 if (lp->type == EL3_PNP)
374 pnp_device_detach(to_pnp_dev(lp->dev));
377 unregister_netdev (dev);
378 release_region(dev->base_addr, EL3_IO_EXTENT);
382 static int __init el3_probe(int card_idx)
384 struct net_device *dev;
385 struct el3_private *lp;
386 short lrs_state = 0xff, i;
387 int ioaddr, irq, if_port;
389 static int current_tag;
391 #if defined(__ISAPNP__)
392 static int pnp_cards;
393 struct pnp_dev *idev = NULL;
398 for (i=0; el3_isapnp_adapters[i].vendor != 0; i++) {
400 while ((idev = pnp_find_dev(NULL,
401 el3_isapnp_adapters[i].vendor,
402 el3_isapnp_adapters[i].function,
404 if (pnp_device_attach(idev) < 0)
406 if (pnp_activate_dev(idev) < 0) {
408 pnp_device_detach(idev);
411 if (!pnp_port_valid(idev, 0) || !pnp_irq_valid(idev, 0))
413 ioaddr = pnp_port_start(idev, 0);
414 if (!request_region(ioaddr, EL3_IO_EXTENT, "3c509 PnP")) {
415 pnp_device_detach(idev);
418 irq = pnp_irq(idev, 0);
420 printk ("ISAPnP reports %s at i/o 0x%x, irq %d\n",
421 (char*) el3_isapnp_adapters[i].driver_data, ioaddr, irq);
423 for (j = 0; j < 3; j++)
424 el3_isapnp_phys_addr[pnp_cards][j] =
426 htons(read_eeprom(ioaddr, j));
427 if_port = read_eeprom(ioaddr, 8) >> 14;
428 dev = alloc_etherdev(sizeof (struct el3_private));
430 release_region(ioaddr, EL3_IO_EXTENT);
431 pnp_device_detach(idev);
435 SET_MODULE_OWNER(dev);
436 SET_NETDEV_DEV(dev, &idev->dev);
439 netdev_boot_setup_check(dev);
444 #endif /* __ISAPNP__ */
446 /* Select an open I/O location at 0x1*0 to do contention select. */
447 for ( ; id_port < 0x200; id_port += 0x10) {
448 if (!request_region(id_port, 1, "3c509"))
452 if (inb(id_port) & 0x01){
453 release_region(id_port, 1);
456 release_region(id_port, 1);
458 if (id_port >= 0x200) {
459 /* Rare -- do we really need a warning? */
460 printk(" WARNING: No I/O port available for 3c509 activation.\n");
464 /* Next check for all ISA bus boards by sending the ID sequence to the
465 ID_PORT. We find cards past the first by setting the 'current_tag'
466 on cards as they are found. Cards with their tag set will not
467 respond to subsequent ID sequences. */
471 for(i = 0; i < 255; i++) {
472 outb(lrs_state, id_port);
474 lrs_state = lrs_state & 0x100 ? lrs_state ^ 0xcf : lrs_state;
477 /* For the first probe, clear all board's tag registers. */
478 if (current_tag == 0)
480 else /* Otherwise kill off already-found boards. */
483 if (id_read_eeprom(7) != 0x6d50) {
487 /* Read in EEPROM data, which does contention-select.
488 Only the lowest address board will stay "on-line".
489 3Com got the byte order backwards. */
490 for (i = 0; i < 3; i++) {
491 phys_addr[i] = htons(id_read_eeprom(i));
494 #if defined(__ISAPNP__)
496 /* The ISA PnP 3c509 cards respond to the ID sequence.
497 This check is needed in order not to register them twice. */
498 for (i = 0; i < pnp_cards; i++) {
499 if (phys_addr[0] == el3_isapnp_phys_addr[i][0] &&
500 phys_addr[1] == el3_isapnp_phys_addr[i][1] &&
501 phys_addr[2] == el3_isapnp_phys_addr[i][2])
504 printk("3c509 with address %02x %02x %02x %02x %02x %02x was found by ISAPnP\n",
505 phys_addr[0] & 0xff, phys_addr[0] >> 8,
506 phys_addr[1] & 0xff, phys_addr[1] >> 8,
507 phys_addr[2] & 0xff, phys_addr[2] >> 8);
508 /* Set the adaptor tag so that the next card can be found. */
509 outb(0xd0 + ++current_tag, id_port);
514 #endif /* __ISAPNP__ */
517 unsigned int iobase = id_read_eeprom(8);
518 if_port = iobase >> 14;
519 ioaddr = 0x200 + ((iobase & 0x1f) << 4);
521 irq = id_read_eeprom(9) >> 12;
523 dev = alloc_etherdev(sizeof (struct el3_private));
527 SET_MODULE_OWNER(dev);
529 netdev_boot_setup_check(dev);
531 /* Set passed-in IRQ or I/O Addr. */
532 if (dev->irq > 1 && dev->irq < 16)
535 if (dev->base_addr) {
536 if (dev->mem_end == 0x3c509 /* Magic key */
537 && dev->base_addr >= 0x200 && dev->base_addr <= 0x3e0)
538 ioaddr = dev->base_addr & 0x3f0;
539 else if (dev->base_addr != ioaddr)
543 if (!request_region(ioaddr, EL3_IO_EXTENT, "3c509")) {
548 /* Set the adaptor tag so that the next card can be found. */
549 outb(0xd0 + ++current_tag, id_port);
551 /* Activate the adaptor at the EEPROM location. */
552 outb((ioaddr >> 4) | 0xe0, id_port);
555 if (inw(ioaddr) != 0x6d50)
558 /* Free the interrupt so that some other card can use it. */
559 outw(0x0f00, ioaddr + WN0_IRQ);
561 #if defined(__ISAPNP__)
562 found: /* PNP jumps here... */
563 #endif /* __ISAPNP__ */
565 memcpy(dev->dev_addr, phys_addr, sizeof(phys_addr));
566 dev->base_addr = ioaddr;
568 dev->if_port = if_port;
569 lp = netdev_priv(dev);
570 #if defined(__ISAPNP__)
571 lp->dev = &idev->dev;
573 err = el3_common_init(dev);
579 lp->next_dev = el3_root_dev;
584 #if defined(__ISAPNP__)
586 pnp_device_detach(idev);
594 static int __init el3_mca_probe(struct device *device)
596 /* Based on Erik Nygren's (nygren@mit.edu) 3c529 patch,
597 * heavily modified by Chris Beauregard
598 * (cpbeaure@csclub.uwaterloo.ca) to support standard MCA
601 * redone for multi-card detection by ZP Gu (zpg@castle.net)
602 * now works as a module */
604 struct el3_private *lp;
606 int ioaddr, irq, if_port;
608 struct net_device *dev = NULL;
610 struct mca_device *mdev = to_mca_device(device);
611 int slot = mdev->slot;
614 pos4 = mca_device_read_stored_pos(mdev, 4);
615 pos5 = mca_device_read_stored_pos(mdev, 5);
617 ioaddr = ((short)((pos4&0xfc)|0x02)) << 8;
621 printk("3c529: found %s at slot %d\n",
622 el3_mca_adapter_names[mdev->index], slot + 1);
625 strncpy(mdev->name, el3_mca_adapter_names[mdev->index],
627 mca_device_set_claim(mdev, 1);
629 if_port = pos4 & 0x03;
631 irq = mca_device_transform_irq(mdev, irq);
632 ioaddr = mca_device_transform_ioport(mdev, ioaddr);
634 printk("3c529: irq %d ioaddr 0x%x ifport %d\n", irq, ioaddr, if_port);
637 for (i = 0; i < 3; i++) {
638 phys_addr[i] = htons(read_eeprom(ioaddr, i));
641 dev = alloc_etherdev(sizeof (struct el3_private));
643 release_region(ioaddr, EL3_IO_EXTENT);
647 SET_MODULE_OWNER(dev);
648 netdev_boot_setup_check(dev);
650 memcpy(dev->dev_addr, phys_addr, sizeof(phys_addr));
651 dev->base_addr = ioaddr;
653 dev->if_port = if_port;
654 lp = netdev_priv(dev);
657 device->driver_data = dev;
658 err = el3_common_init(dev);
661 device->driver_data = NULL;
670 #endif /* CONFIG_MCA */
673 static int __init el3_eisa_probe (struct device *device)
675 struct el3_private *lp;
677 int ioaddr, irq, if_port;
679 struct net_device *dev = NULL;
680 struct eisa_device *edev;
683 /* Yeepee, The driver framework is calling us ! */
684 edev = to_eisa_device (device);
685 ioaddr = edev->base_addr;
687 if (!request_region(ioaddr, EL3_IO_EXTENT, "3c509"))
690 /* Change the register set to the configuration window 0. */
691 outw(SelectWindow | 0, ioaddr + 0xC80 + EL3_CMD);
693 irq = inw(ioaddr + WN0_IRQ) >> 12;
694 if_port = inw(ioaddr + 6)>>14;
695 for (i = 0; i < 3; i++)
696 phys_addr[i] = htons(read_eeprom(ioaddr, i));
698 /* Restore the "Product ID" to the EEPROM read register. */
699 read_eeprom(ioaddr, 3);
701 dev = alloc_etherdev(sizeof (struct el3_private));
703 release_region(ioaddr, EL3_IO_EXTENT);
707 SET_MODULE_OWNER(dev);
709 netdev_boot_setup_check(dev);
711 memcpy(dev->dev_addr, phys_addr, sizeof(phys_addr));
712 dev->base_addr = ioaddr;
714 dev->if_port = if_port;
715 lp = netdev_priv(dev);
718 eisa_set_drvdata (edev, dev);
719 err = el3_common_init(dev);
722 eisa_set_drvdata (edev, NULL);
732 #if defined(CONFIG_EISA) || defined(CONFIG_MCA)
733 /* This remove works for all device types.
735 * The net dev must be stored in the driver_data field */
736 static int __devexit el3_device_remove (struct device *device)
738 struct net_device *dev;
740 dev = device->driver_data;
742 el3_common_remove (dev);
747 /* Read a word from the EEPROM using the regular EEPROM access register.
748 Assume that we are in register window zero.
750 static ushort read_eeprom(int ioaddr, int index)
752 outw(EEPROM_READ + index, ioaddr + 10);
753 /* Pause for at least 162 us. for the read to take place.
754 Some chips seem to require much longer */
756 return inw(ioaddr + 12);
759 /* Read a word from the EEPROM when in the ISA ID probe state. */
760 static ushort __init id_read_eeprom(int index)
764 /* Issue read command, and pause for at least 162 us. for it to complete.
765 Assume extra-fast 16Mhz bus. */
766 outb(EEPROM_READ + index, id_port);
768 /* Pause for at least 162 us. for the read to take place. */
769 /* Some chips seem to require much longer */
772 for (bit = 15; bit >= 0; bit--)
773 word = (word << 1) + (inb(id_port) & 0x01);
776 printk(" 3c509 EEPROM word %d %#4.4x.\n", index, word);
783 el3_open(struct net_device *dev)
785 int ioaddr = dev->base_addr;
788 outw(TxReset, ioaddr + EL3_CMD);
789 outw(RxReset, ioaddr + EL3_CMD);
790 outw(SetStatusEnb | 0x00, ioaddr + EL3_CMD);
792 i = request_irq(dev->irq, &el3_interrupt, 0, dev->name, dev);
798 printk("%s: Opening, IRQ %d status@%x %4.4x.\n", dev->name,
799 dev->irq, ioaddr + EL3_STATUS, inw(ioaddr + EL3_STATUS));
804 printk("%s: Opened 3c509 IRQ %d status %4.4x.\n",
805 dev->name, dev->irq, inw(ioaddr + EL3_STATUS));
811 el3_tx_timeout (struct net_device *dev)
813 struct el3_private *lp = netdev_priv(dev);
814 int ioaddr = dev->base_addr;
816 /* Transmitter timeout, serious problems. */
817 printk("%s: transmit timed out, Tx_status %2.2x status %4.4x "
818 "Tx FIFO room %d.\n",
819 dev->name, inb(ioaddr + TX_STATUS), inw(ioaddr + EL3_STATUS),
820 inw(ioaddr + TX_FREE));
821 lp->stats.tx_errors++;
822 dev->trans_start = jiffies;
823 /* Issue TX_RESET and TX_START commands. */
824 outw(TxReset, ioaddr + EL3_CMD);
825 outw(TxEnable, ioaddr + EL3_CMD);
826 netif_wake_queue(dev);
831 el3_start_xmit(struct sk_buff *skb, struct net_device *dev)
833 struct el3_private *lp = netdev_priv(dev);
834 int ioaddr = dev->base_addr;
837 netif_stop_queue (dev);
839 lp->stats.tx_bytes += skb->len;
842 printk("%s: el3_start_xmit(length = %u) called, status %4.4x.\n",
843 dev->name, skb->len, inw(ioaddr + EL3_STATUS));
846 #ifndef final_version
847 { /* Error-checking code, delete someday. */
848 ushort status = inw(ioaddr + EL3_STATUS);
849 if (status & 0x0001 /* IRQ line active, missed one. */
850 && inw(ioaddr + EL3_STATUS) & 1) { /* Make sure. */
851 printk("%s: Missed interrupt, status then %04x now %04x"
852 " Tx %2.2x Rx %4.4x.\n", dev->name, status,
853 inw(ioaddr + EL3_STATUS), inb(ioaddr + TX_STATUS),
854 inw(ioaddr + RX_STATUS));
855 /* Fake interrupt trigger by masking, acknowledge interrupts. */
856 outw(SetStatusEnb | 0x00, ioaddr + EL3_CMD);
857 outw(AckIntr | IntLatch | TxAvailable | RxEarly | IntReq,
859 outw(SetStatusEnb | 0xff, ioaddr + EL3_CMD);
865 * We lock the driver against other processors. Note
866 * we don't need to lock versus the IRQ as we suspended
867 * that. This means that we lose the ability to take
868 * an RX during a TX upload. That sucks a bit with SMP
869 * on an original 3c509 (2K buffer)
871 * Using disable_irq stops us crapping on other
872 * time sensitive devices.
875 spin_lock_irqsave(&lp->lock, flags);
877 /* Put out the doubleword header... */
878 outw(skb->len, ioaddr + TX_FIFO);
879 outw(0x00, ioaddr + TX_FIFO);
880 /* ... and the packet rounded to a doubleword. */
881 outsl(ioaddr + TX_FIFO, skb->data, (skb->len + 3) >> 2);
883 dev->trans_start = jiffies;
884 if (inw(ioaddr + TX_FREE) > 1536)
885 netif_start_queue(dev);
887 /* Interrupt us when the FIFO has room for max-sized packet. */
888 outw(SetTxThreshold + 1536, ioaddr + EL3_CMD);
890 spin_unlock_irqrestore(&lp->lock, flags);
894 /* Clear the Tx status stack. */
899 while (--i > 0 && (tx_status = inb(ioaddr + TX_STATUS)) > 0) {
900 if (tx_status & 0x38) lp->stats.tx_aborted_errors++;
901 if (tx_status & 0x30) outw(TxReset, ioaddr + EL3_CMD);
902 if (tx_status & 0x3C) outw(TxEnable, ioaddr + EL3_CMD);
903 outb(0x00, ioaddr + TX_STATUS); /* Pop the status stack. */
909 /* The EL3 interrupt handler. */
911 el3_interrupt(int irq, void *dev_id)
913 struct net_device *dev = dev_id;
914 struct el3_private *lp;
916 int i = max_interrupt_work;
918 lp = netdev_priv(dev);
919 spin_lock(&lp->lock);
921 ioaddr = dev->base_addr;
924 status = inw(ioaddr + EL3_STATUS);
925 printk("%s: interrupt, status %4.4x.\n", dev->name, status);
928 while ((status = inw(ioaddr + EL3_STATUS)) &
929 (IntLatch | RxComplete | StatsFull)) {
931 if (status & RxComplete)
934 if (status & TxAvailable) {
936 printk(" TX room bit was handled.\n");
937 /* There's room in the FIFO for a full-sized packet. */
938 outw(AckIntr | TxAvailable, ioaddr + EL3_CMD);
939 netif_wake_queue (dev);
941 if (status & (AdapterFailure | RxEarly | StatsFull | TxComplete)) {
942 /* Handle all uncommon interrupts. */
943 if (status & StatsFull) /* Empty statistics. */
945 if (status & RxEarly) { /* Rx early is unused. */
947 outw(AckIntr | RxEarly, ioaddr + EL3_CMD);
949 if (status & TxComplete) { /* Really Tx error. */
950 struct el3_private *lp = netdev_priv(dev);
954 while (--i>0 && (tx_status = inb(ioaddr + TX_STATUS)) > 0) {
955 if (tx_status & 0x38) lp->stats.tx_aborted_errors++;
956 if (tx_status & 0x30) outw(TxReset, ioaddr + EL3_CMD);
957 if (tx_status & 0x3C) outw(TxEnable, ioaddr + EL3_CMD);
958 outb(0x00, ioaddr + TX_STATUS); /* Pop the status stack. */
961 if (status & AdapterFailure) {
962 /* Adapter failure requires Rx reset and reinit. */
963 outw(RxReset, ioaddr + EL3_CMD);
964 /* Set the Rx filter to the current state. */
965 outw(SetRxFilter | RxStation | RxBroadcast
966 | (dev->flags & IFF_ALLMULTI ? RxMulticast : 0)
967 | (dev->flags & IFF_PROMISC ? RxProm : 0),
969 outw(RxEnable, ioaddr + EL3_CMD); /* Re-enable the receiver. */
970 outw(AckIntr | AdapterFailure, ioaddr + EL3_CMD);
975 printk("%s: Infinite loop in interrupt, status %4.4x.\n",
977 /* Clear all interrupts. */
978 outw(AckIntr | 0xFF, ioaddr + EL3_CMD);
981 /* Acknowledge the IRQ. */
982 outw(AckIntr | IntReq | IntLatch, ioaddr + EL3_CMD); /* Ack IRQ */
986 printk("%s: exiting interrupt, status %4.4x.\n", dev->name,
987 inw(ioaddr + EL3_STATUS));
989 spin_unlock(&lp->lock);
994 #ifdef CONFIG_NET_POLL_CONTROLLER
996 * Polling receive - used by netconsole and other diagnostic tools
997 * to allow network i/o with interrupts disabled.
999 static void el3_poll_controller(struct net_device *dev)
1001 disable_irq(dev->irq);
1002 el3_interrupt(dev->irq, dev);
1003 enable_irq(dev->irq);
1007 static struct net_device_stats *
1008 el3_get_stats(struct net_device *dev)
1010 struct el3_private *lp = netdev_priv(dev);
1011 unsigned long flags;
1014 * This is fast enough not to bother with disable IRQ
1018 spin_lock_irqsave(&lp->lock, flags);
1020 spin_unlock_irqrestore(&lp->lock, flags);
1024 /* Update statistics. We change to register window 6, so this should be run
1025 single-threaded if the device is active. This is expected to be a rare
1026 operation, and it's simpler for the rest of the driver to assume that
1027 window 1 is always valid rather than use a special window-state variable.
1029 static void update_stats(struct net_device *dev)
1031 struct el3_private *lp = netdev_priv(dev);
1032 int ioaddr = dev->base_addr;
1035 printk(" Updating the statistics.\n");
1036 /* Turn off statistics updates while reading. */
1037 outw(StatsDisable, ioaddr + EL3_CMD);
1038 /* Switch to the stats window, and read everything. */
1040 lp->stats.tx_carrier_errors += inb(ioaddr + 0);
1041 lp->stats.tx_heartbeat_errors += inb(ioaddr + 1);
1042 /* Multiple collisions. */ inb(ioaddr + 2);
1043 lp->stats.collisions += inb(ioaddr + 3);
1044 lp->stats.tx_window_errors += inb(ioaddr + 4);
1045 lp->stats.rx_fifo_errors += inb(ioaddr + 5);
1046 lp->stats.tx_packets += inb(ioaddr + 6);
1047 /* Rx packets */ inb(ioaddr + 7);
1048 /* Tx deferrals */ inb(ioaddr + 8);
1049 inw(ioaddr + 10); /* Total Rx and Tx octets. */
1052 /* Back to window 1, and turn statistics back on. */
1054 outw(StatsEnable, ioaddr + EL3_CMD);
1059 el3_rx(struct net_device *dev)
1061 struct el3_private *lp = netdev_priv(dev);
1062 int ioaddr = dev->base_addr;
1066 printk(" In rx_packet(), status %4.4x, rx_status %4.4x.\n",
1067 inw(ioaddr+EL3_STATUS), inw(ioaddr+RX_STATUS));
1068 while ((rx_status = inw(ioaddr + RX_STATUS)) > 0) {
1069 if (rx_status & 0x4000) { /* Error, update stats. */
1070 short error = rx_status & 0x3800;
1072 outw(RxDiscard, ioaddr + EL3_CMD);
1073 lp->stats.rx_errors++;
1075 case 0x0000: lp->stats.rx_over_errors++; break;
1076 case 0x0800: lp->stats.rx_length_errors++; break;
1077 case 0x1000: lp->stats.rx_frame_errors++; break;
1078 case 0x1800: lp->stats.rx_length_errors++; break;
1079 case 0x2000: lp->stats.rx_frame_errors++; break;
1080 case 0x2800: lp->stats.rx_crc_errors++; break;
1083 short pkt_len = rx_status & 0x7ff;
1084 struct sk_buff *skb;
1086 skb = dev_alloc_skb(pkt_len+5);
1087 lp->stats.rx_bytes += pkt_len;
1089 printk("Receiving packet size %d status %4.4x.\n",
1090 pkt_len, rx_status);
1092 skb_reserve(skb, 2); /* Align IP on 16 byte */
1094 /* 'skb->data' points to the start of sk_buff data area. */
1095 insl(ioaddr + RX_FIFO, skb_put(skb,pkt_len),
1096 (pkt_len + 3) >> 2);
1098 outw(RxDiscard, ioaddr + EL3_CMD); /* Pop top Rx packet. */
1099 skb->protocol = eth_type_trans(skb,dev);
1101 dev->last_rx = jiffies;
1102 lp->stats.rx_packets++;
1105 outw(RxDiscard, ioaddr + EL3_CMD);
1106 lp->stats.rx_dropped++;
1108 printk("%s: Couldn't allocate a sk_buff of size %d.\n",
1109 dev->name, pkt_len);
1111 inw(ioaddr + EL3_STATUS); /* Delay. */
1112 while (inw(ioaddr + EL3_STATUS) & 0x1000)
1113 printk(KERN_DEBUG " Waiting for 3c509 to discard packet, status %x.\n",
1114 inw(ioaddr + EL3_STATUS) );
1121 * Set or clear the multicast filter for this adaptor.
1124 set_multicast_list(struct net_device *dev)
1126 unsigned long flags;
1127 struct el3_private *lp = netdev_priv(dev);
1128 int ioaddr = dev->base_addr;
1130 if (el3_debug > 1) {
1132 if (old != dev->mc_count) {
1133 old = dev->mc_count;
1134 printk("%s: Setting Rx mode to %d addresses.\n", dev->name, dev->mc_count);
1137 spin_lock_irqsave(&lp->lock, flags);
1138 if (dev->flags&IFF_PROMISC) {
1139 outw(SetRxFilter | RxStation | RxMulticast | RxBroadcast | RxProm,
1142 else if (dev->mc_count || (dev->flags&IFF_ALLMULTI)) {
1143 outw(SetRxFilter | RxStation | RxMulticast | RxBroadcast, ioaddr + EL3_CMD);
1146 outw(SetRxFilter | RxStation | RxBroadcast, ioaddr + EL3_CMD);
1147 spin_unlock_irqrestore(&lp->lock, flags);
1151 el3_close(struct net_device *dev)
1153 int ioaddr = dev->base_addr;
1154 struct el3_private *lp = netdev_priv(dev);
1157 printk("%s: Shutting down ethercard.\n", dev->name);
1161 free_irq(dev->irq, dev);
1162 /* Switching back to window 0 disables the IRQ. */
1164 if (lp->type != EL3_EISA) {
1165 /* But we explicitly zero the IRQ line select anyway. Don't do
1166 * it on EISA cards, it prevents the module from getting an
1167 * IRQ after unload+reload... */
1168 outw(0x0f00, ioaddr + WN0_IRQ);
1175 el3_link_ok(struct net_device *dev)
1177 int ioaddr = dev->base_addr;
1181 tmp = inw(ioaddr + WN4_MEDIA);
1183 return tmp & (1<<11);
1187 el3_netdev_get_ecmd(struct net_device *dev, struct ethtool_cmd *ecmd)
1190 int ioaddr = dev->base_addr;
1193 /* obtain current transceiver via WN4_MEDIA? */
1194 tmp = inw(ioaddr + WN0_ADDR_CONF);
1195 ecmd->transceiver = XCVR_INTERNAL;
1196 switch (tmp >> 14) {
1198 ecmd->port = PORT_TP;
1201 ecmd->port = PORT_AUI;
1202 ecmd->transceiver = XCVR_EXTERNAL;
1205 ecmd->port = PORT_BNC;
1210 ecmd->duplex = DUPLEX_HALF;
1211 ecmd->supported = 0;
1212 tmp = inw(ioaddr + WN0_CONF_CTRL);
1214 ecmd->supported |= SUPPORTED_AUI;
1216 ecmd->supported |= SUPPORTED_BNC;
1218 ecmd->supported |= SUPPORTED_TP | SUPPORTED_10baseT_Half |
1219 SUPPORTED_10baseT_Full; /* hmm... */
1221 tmp = inw(ioaddr + WN4_NETDIAG);
1222 if (tmp & FD_ENABLE)
1223 ecmd->duplex = DUPLEX_FULL;
1226 ecmd->speed = SPEED_10;
1232 el3_netdev_set_ecmd(struct net_device *dev, struct ethtool_cmd *ecmd)
1235 int ioaddr = dev->base_addr;
1237 if (ecmd->speed != SPEED_10)
1239 if ((ecmd->duplex != DUPLEX_HALF) && (ecmd->duplex != DUPLEX_FULL))
1241 if ((ecmd->transceiver != XCVR_INTERNAL) && (ecmd->transceiver != XCVR_EXTERNAL))
1244 /* change XCVR type */
1246 tmp = inw(ioaddr + WN0_ADDR_CONF);
1247 switch (ecmd->port) {
1264 outw(tmp, ioaddr + WN0_ADDR_CONF);
1265 if (dev->if_port == 3) {
1266 /* fire up the DC-DC convertor if BNC gets enabled */
1267 tmp = inw(ioaddr + WN0_ADDR_CONF);
1268 if (tmp & (3 << 14)) {
1269 outw(StartCoax, ioaddr + EL3_CMD);
1276 tmp = inw(ioaddr + WN4_NETDIAG);
1277 if (ecmd->duplex == DUPLEX_FULL)
1281 outw(tmp, ioaddr + WN4_NETDIAG);
1287 static void el3_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info)
1289 strcpy(info->driver, DRV_NAME);
1290 strcpy(info->version, DRV_VERSION);
1293 static int el3_get_settings(struct net_device *dev, struct ethtool_cmd *ecmd)
1295 struct el3_private *lp = netdev_priv(dev);
1298 spin_lock_irq(&lp->lock);
1299 ret = el3_netdev_get_ecmd(dev, ecmd);
1300 spin_unlock_irq(&lp->lock);
1304 static int el3_set_settings(struct net_device *dev, struct ethtool_cmd *ecmd)
1306 struct el3_private *lp = netdev_priv(dev);
1309 spin_lock_irq(&lp->lock);
1310 ret = el3_netdev_set_ecmd(dev, ecmd);
1311 spin_unlock_irq(&lp->lock);
1315 static u32 el3_get_link(struct net_device *dev)
1317 struct el3_private *lp = netdev_priv(dev);
1320 spin_lock_irq(&lp->lock);
1321 ret = el3_link_ok(dev);
1322 spin_unlock_irq(&lp->lock);
1326 static u32 el3_get_msglevel(struct net_device *dev)
1331 static void el3_set_msglevel(struct net_device *dev, u32 v)
1336 static const struct ethtool_ops ethtool_ops = {
1337 .get_drvinfo = el3_get_drvinfo,
1338 .get_settings = el3_get_settings,
1339 .set_settings = el3_set_settings,
1340 .get_link = el3_get_link,
1341 .get_msglevel = el3_get_msglevel,
1342 .set_msglevel = el3_set_msglevel,
1346 el3_down(struct net_device *dev)
1348 int ioaddr = dev->base_addr;
1350 netif_stop_queue(dev);
1352 /* Turn off statistics ASAP. We update lp->stats below. */
1353 outw(StatsDisable, ioaddr + EL3_CMD);
1355 /* Disable the receiver and transmitter. */
1356 outw(RxDisable, ioaddr + EL3_CMD);
1357 outw(TxDisable, ioaddr + EL3_CMD);
1359 if (dev->if_port == 3)
1360 /* Turn off thinnet power. Green! */
1361 outw(StopCoax, ioaddr + EL3_CMD);
1362 else if (dev->if_port == 0) {
1363 /* Disable link beat and jabber, if_port may change here next open(). */
1365 outw(inw(ioaddr + WN4_MEDIA) & ~MEDIA_TP, ioaddr + WN4_MEDIA);
1368 outw(SetIntrEnb | 0x0000, ioaddr + EL3_CMD);
1374 el3_up(struct net_device *dev)
1376 int i, sw_info, net_diag;
1377 int ioaddr = dev->base_addr;
1379 /* Activating the board required and does no harm otherwise */
1380 outw(0x0001, ioaddr + 4);
1382 /* Set the IRQ line. */
1383 outw((dev->irq << 12) | 0x0f00, ioaddr + WN0_IRQ);
1385 /* Set the station address in window 2 each time opened. */
1388 for (i = 0; i < 6; i++)
1389 outb(dev->dev_addr[i], ioaddr + i);
1391 if ((dev->if_port & 0x03) == 3) /* BNC interface */
1392 /* Start the thinnet transceiver. We should really wait 50ms...*/
1393 outw(StartCoax, ioaddr + EL3_CMD);
1394 else if ((dev->if_port & 0x03) == 0) { /* 10baseT interface */
1395 /* Combine secondary sw_info word (the adapter level) and primary
1396 sw_info word (duplex setting plus other useless bits) */
1398 sw_info = (read_eeprom(ioaddr, 0x14) & 0x400f) |
1399 (read_eeprom(ioaddr, 0x0d) & 0xBff0);
1402 net_diag = inw(ioaddr + WN4_NETDIAG);
1403 net_diag = (net_diag | FD_ENABLE); /* temporarily assume full-duplex will be set */
1404 printk("%s: ", dev->name);
1405 switch (dev->if_port & 0x0c) {
1407 /* force full-duplex mode if 3c5x9b */
1408 if (sw_info & 0x000f) {
1409 printk("Forcing 3c5x9b full-duplex mode");
1413 /* set full-duplex mode based on eeprom config setting */
1414 if ((sw_info & 0x000f) && (sw_info & 0x8000)) {
1415 printk("Setting 3c5x9b full-duplex mode (from EEPROM configuration bit)");
1419 /* xcvr=(0 || 4) OR user has an old 3c5x9 non "B" model */
1420 printk("Setting 3c5x9/3c5x9B half-duplex mode");
1421 net_diag = (net_diag & ~FD_ENABLE); /* disable full duplex */
1424 outw(net_diag, ioaddr + WN4_NETDIAG);
1425 printk(" if_port: %d, sw_info: %4.4x\n", dev->if_port, sw_info);
1427 printk("%s: 3c5x9 net diag word is now: %4.4x.\n", dev->name, net_diag);
1428 /* Enable link beat and jabber check. */
1429 outw(inw(ioaddr + WN4_MEDIA) | MEDIA_TP, ioaddr + WN4_MEDIA);
1432 /* Switch to the stats window, and clear all stats by reading. */
1433 outw(StatsDisable, ioaddr + EL3_CMD);
1435 for (i = 0; i < 9; i++)
1440 /* Switch to register set 1 for normal use. */
1443 /* Accept b-case and phys addr only. */
1444 outw(SetRxFilter | RxStation | RxBroadcast, ioaddr + EL3_CMD);
1445 outw(StatsEnable, ioaddr + EL3_CMD); /* Turn on statistics. */
1447 outw(RxEnable, ioaddr + EL3_CMD); /* Enable the receiver. */
1448 outw(TxEnable, ioaddr + EL3_CMD); /* Enable transmitter. */
1449 /* Allow status bits to be seen. */
1450 outw(SetStatusEnb | 0xff, ioaddr + EL3_CMD);
1451 /* Ack all pending events, and set active indicator mask. */
1452 outw(AckIntr | IntLatch | TxAvailable | RxEarly | IntReq,
1454 outw(SetIntrEnb | IntLatch|TxAvailable|TxComplete|RxComplete|StatsFull,
1457 netif_start_queue(dev);
1460 /* Power Management support functions */
1464 el3_suspend(struct device *pdev, pm_message_t state)
1466 unsigned long flags;
1467 struct net_device *dev;
1468 struct el3_private *lp;
1471 dev = pdev->driver_data;
1472 lp = netdev_priv(dev);
1473 ioaddr = dev->base_addr;
1475 spin_lock_irqsave(&lp->lock, flags);
1477 if (netif_running(dev))
1478 netif_device_detach(dev);
1481 outw(PowerDown, ioaddr + EL3_CMD);
1483 spin_unlock_irqrestore(&lp->lock, flags);
1488 el3_resume(struct device *pdev)
1490 unsigned long flags;
1491 struct net_device *dev;
1492 struct el3_private *lp;
1495 dev = pdev->driver_data;
1496 lp = netdev_priv(dev);
1497 ioaddr = dev->base_addr;
1499 spin_lock_irqsave(&lp->lock, flags);
1501 outw(PowerUp, ioaddr + EL3_CMD);
1504 if (netif_running(dev))
1505 netif_device_attach(dev);
1507 spin_unlock_irqrestore(&lp->lock, flags);
1511 #endif /* EL3_SUSPEND */
1513 /* Parameters that may be passed into the module. */
1514 static int debug = -1;
1515 static int irq[] = {-1, -1, -1, -1, -1, -1, -1, -1};
1516 static int xcvr[] = {-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1};
1518 module_param(debug,int, 0);
1519 module_param_array(irq, int, NULL, 0);
1520 module_param_array(xcvr, int, NULL, 0);
1521 module_param(max_interrupt_work, int, 0);
1522 MODULE_PARM_DESC(debug, "debug level (0-6)");
1523 MODULE_PARM_DESC(irq, "IRQ number(s) (assigned)");
1524 MODULE_PARM_DESC(xcvr,"transceiver(s) (0=internal, 1=external)");
1525 MODULE_PARM_DESC(max_interrupt_work, "maximum events handled per interrupt");
1526 #if defined(__ISAPNP__)
1527 module_param(nopnp, int, 0);
1528 MODULE_PARM_DESC(nopnp, "disable ISA PnP support (0-1)");
1529 MODULE_DEVICE_TABLE(isapnp, el3_isapnp_adapters);
1530 #endif /* __ISAPNP__ */
1531 MODULE_DESCRIPTION("3Com Etherlink III (3c509, 3c509B) ISA/PnP ethernet driver");
1532 MODULE_LICENSE("GPL");
1534 static int __init el3_init_module(void)
1542 el3_root_dev = NULL;
1543 while (el3_probe(el3_cards) == 0) {
1544 if (irq[el3_cards] > 1)
1545 el3_root_dev->irq = irq[el3_cards];
1546 if (xcvr[el3_cards] >= 0)
1547 el3_root_dev->if_port = xcvr[el3_cards];
1552 ret = eisa_driver_register(&el3_eisa_driver);
1556 int err = mca_register_driver(&el3_mca_driver);
1564 static void __exit el3_cleanup_module(void)
1566 struct net_device *next_dev;
1568 while (el3_root_dev) {
1569 struct el3_private *lp = netdev_priv(el3_root_dev);
1571 next_dev = lp->next_dev;
1572 el3_common_remove (el3_root_dev);
1573 el3_root_dev = next_dev;
1577 eisa_driver_unregister (&el3_eisa_driver);
1580 mca_unregister_driver(&el3_mca_driver);
1584 module_init (el3_init_module);
1585 module_exit (el3_cleanup_module);