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1/* smc-ultra.c: A SMC Ultra ethernet driver for linux. */
2/*
3 This is a driver for the SMC Ultra and SMC EtherEZ ISA ethercards.
4
5 Written 1993-1998 by Donald Becker.
6
7 Copyright 1993 United States Government as represented by the
8 Director, National Security Agency.
9
10 This software may be used and distributed according to the terms
11 of the GNU General Public License, incorporated herein by reference.
12
13 The author may be reached as becker@scyld.com, or C/O
14 Scyld Computing Corporation
15 410 Severn Ave., Suite 210
16 Annapolis MD 21403
17
18 This driver uses the cards in the 8390-compatible mode.
19 Most of the run-time complexity is handled by the generic code in
20 8390.c. The code in this file is responsible for
21
22 ultra_probe() Detecting and initializing the card.
23 ultra_probe1()
24 ultra_probe_isapnp()
25
26 ultra_open() The card-specific details of starting, stopping
27 ultra_reset_8390() and resetting the 8390 NIC core.
28 ultra_close()
29
30 ultra_block_input() Routines for reading and writing blocks of
31 ultra_block_output() packet buffer memory.
32 ultra_pio_input()
33 ultra_pio_output()
34
35 This driver enables the shared memory only when doing the actual data
36 transfers to avoid a bug in early version of the card that corrupted
37 data transferred by a AHA1542.
38
39 This driver now supports the programmed-I/O (PIO) data transfer mode of
40 the EtherEZ. It does not use the non-8390-compatible "Altego" mode.
41 That support (if available) is in smc-ez.c.
42
43 Changelog:
44
45 Paul Gortmaker : multiple card support for module users.
46 Donald Becker : 4/17/96 PIO support, minor potential problems avoided.
47 Donald Becker : 6/6/96 correctly set auto-wrap bit.
48 Alexander Sotirov : 1/20/01 Added support for ISAPnP cards
49
50 Note about the ISA PnP support:
51
52 This driver can not autoprobe for more than one SMC EtherEZ PnP card.
53 You have to configure the second card manually through the /proc/isapnp
54 interface and then load the module with an explicit io=0x___ option.
55*/
56
57static const char version[] =
58 "smc-ultra.c:v2.02 2/3/98 Donald Becker (becker@cesdis.gsfc.nasa.gov)\n";
59
60#include <linux/module.h>
61#include <linux/kernel.h>
62#include <linux/errno.h>
63#include <linux/string.h>
64#include <linux/init.h>
65#include <linux/interrupt.h>
66#include <linux/isapnp.h>
67#include <linux/netdevice.h>
68#include <linux/etherdevice.h>
69
70#include <asm/io.h>
71#include <asm/irq.h>
72
73#include "8390.h"
74
75#define DRV_NAME "smc-ultra"
76
77/* A zero-terminated list of I/O addresses to be probed. */
78static unsigned int ultra_portlist[] __initdata =
79{0x200, 0x220, 0x240, 0x280, 0x300, 0x340, 0x380, 0};
80
81static int ultra_probe1(struct net_device *dev, int ioaddr);
82
83#ifdef __ISAPNP__
84static int ultra_probe_isapnp(struct net_device *dev);
85#endif
86
87static int ultra_open(struct net_device *dev);
88static void ultra_reset_8390(struct net_device *dev);
89static void ultra_get_8390_hdr(struct net_device *dev, struct e8390_pkt_hdr *hdr,
90 int ring_page);
91static void ultra_block_input(struct net_device *dev, int count,
92 struct sk_buff *skb, int ring_offset);
93static void ultra_block_output(struct net_device *dev, int count,
94 const unsigned char *buf, const int start_page);
95static void ultra_pio_get_hdr(struct net_device *dev, struct e8390_pkt_hdr *hdr,
96 int ring_page);
97static void ultra_pio_input(struct net_device *dev, int count,
98 struct sk_buff *skb, int ring_offset);
99static void ultra_pio_output(struct net_device *dev, int count,
100 const unsigned char *buf, const int start_page);
101static int ultra_close_card(struct net_device *dev);
102
103#ifdef __ISAPNP__
104static struct isapnp_device_id ultra_device_ids[] __initdata = {
105 { ISAPNP_VENDOR('S','M','C'), ISAPNP_FUNCTION(0x8416),
106 ISAPNP_VENDOR('S','M','C'), ISAPNP_FUNCTION(0x8416),
107 (long) "SMC EtherEZ (8416)" },
108 { } /* terminate list */
109};
110
111MODULE_DEVICE_TABLE(isapnp, ultra_device_ids);
112#endif
113
114static u32 ultra_msg_enable;
115
116#define START_PG 0x00 /* First page of TX buffer */
117
118#define ULTRA_CMDREG 0 /* Offset to ASIC command register. */
119#define ULTRA_RESET 0x80 /* Board reset, in ULTRA_CMDREG. */
120#define ULTRA_MEMENB 0x40 /* Enable the shared memory. */
121#define IOPD 0x02 /* I/O Pipe Data (16 bits), PIO operation. */
122#define IOPA 0x07 /* I/O Pipe Address for PIO operation. */
123#define ULTRA_NIC_OFFSET 16 /* NIC register offset from the base_addr. */
124#define ULTRA_IO_EXTENT 32
125#define EN0_ERWCNT 0x08 /* Early receive warning count. */
126
127#ifdef CONFIG_NET_POLL_CONTROLLER
128static void ultra_poll(struct net_device *dev)
129{
130 disable_irq(dev->irq);
131 ei_interrupt(dev->irq, dev);
132 enable_irq(dev->irq);
133}
134#endif
135/* Probe for the Ultra. This looks like a 8013 with the station
136 address PROM at I/O ports <base>+8 to <base>+13, with a checksum
137 following.
138*/
139
140static int __init do_ultra_probe(struct net_device *dev)
141{
142 int i;
143 int base_addr = dev->base_addr;
144 int irq = dev->irq;
145
146 if (base_addr > 0x1ff) /* Check a single specified location. */
147 return ultra_probe1(dev, base_addr);
148 else if (base_addr != 0) /* Don't probe at all. */
149 return -ENXIO;
150
151#ifdef __ISAPNP__
152 /* Look for any installed ISAPnP cards */
153 if (isapnp_present() && (ultra_probe_isapnp(dev) == 0))
154 return 0;
155#endif
156
157 for (i = 0; ultra_portlist[i]; i++) {
158 dev->irq = irq;
159 if (ultra_probe1(dev, ultra_portlist[i]) == 0)
160 return 0;
161 }
162
163 return -ENODEV;
164}
165
166#ifndef MODULE
167struct net_device * __init ultra_probe(int unit)
168{
169 struct net_device *dev = alloc_ei_netdev();
170 int err;
171
172 if (!dev)
173 return ERR_PTR(-ENOMEM);
174
175 sprintf(dev->name, "eth%d", unit);
176 netdev_boot_setup_check(dev);
177
178 err = do_ultra_probe(dev);
179 if (err)
180 goto out;
181 return dev;
182out:
183 free_netdev(dev);
184 return ERR_PTR(err);
185}
186#endif
187
188static const struct net_device_ops ultra_netdev_ops = {
189 .ndo_open = ultra_open,
190 .ndo_stop = ultra_close_card,
191
192 .ndo_start_xmit = ei_start_xmit,
193 .ndo_tx_timeout = ei_tx_timeout,
194 .ndo_get_stats = ei_get_stats,
195 .ndo_set_rx_mode = ei_set_multicast_list,
196 .ndo_validate_addr = eth_validate_addr,
197 .ndo_set_mac_address = eth_mac_addr,
198#ifdef CONFIG_NET_POLL_CONTROLLER
199 .ndo_poll_controller = ultra_poll,
200#endif
201};
202
203static int __init ultra_probe1(struct net_device *dev, int ioaddr)
204{
205 int i, retval;
206 int checksum = 0;
207 u8 macaddr[ETH_ALEN];
208 const char *model_name;
209 unsigned char eeprom_irq = 0;
210 static unsigned version_printed;
211 /* Values from various config regs. */
212 unsigned char num_pages, irqreg, addr, piomode;
213 unsigned char idreg = inb(ioaddr + 7);
214 unsigned char reg4 = inb(ioaddr + 4) & 0x7f;
215 struct ei_device *ei_local = netdev_priv(dev);
216
217 if (!request_region(ioaddr, ULTRA_IO_EXTENT, DRV_NAME))
218 return -EBUSY;
219
220 /* Check the ID nibble. */
221 if ((idreg & 0xF0) != 0x20 /* SMC Ultra */
222 && (idreg & 0xF0) != 0x40) { /* SMC EtherEZ */
223 retval = -ENODEV;
224 goto out;
225 }
226
227 /* Select the station address register set. */
228 outb(reg4, ioaddr + 4);
229
230 for (i = 0; i < 8; i++)
231 checksum += inb(ioaddr + 8 + i);
232 if ((checksum & 0xff) != 0xFF) {
233 retval = -ENODEV;
234 goto out;
235 }
236
237 if ((ultra_msg_enable & NETIF_MSG_DRV) && (version_printed++ == 0))
238 netdev_info(dev, version);
239
240 model_name = (idreg & 0xF0) == 0x20 ? "SMC Ultra" : "SMC EtherEZ";
241
242 for (i = 0; i < 6; i++)
243 macaddr[i] = inb(ioaddr + 8 + i);
244 eth_hw_addr_set(dev, macaddr);
245
246 netdev_info(dev, "%s at %#3x, %pM", model_name,
247 ioaddr, dev->dev_addr);
248
249 /* Switch from the station address to the alternate register set and
250 read the useful registers there. */
251 outb(0x80 | reg4, ioaddr + 4);
252
253 /* Enabled FINE16 mode to avoid BIOS ROM width mismatches @ reboot. */
254 outb(0x80 | inb(ioaddr + 0x0c), ioaddr + 0x0c);
255 piomode = inb(ioaddr + 0x8);
256 addr = inb(ioaddr + 0xb);
257 irqreg = inb(ioaddr + 0xd);
258
259 /* Switch back to the station address register set so that the MS-DOS driver
260 can find the card after a warm boot. */
261 outb(reg4, ioaddr + 4);
262
263 if (dev->irq < 2) {
264 unsigned char irqmap[] = {0, 9, 3, 5, 7, 10, 11, 15};
265 int irq;
266
267 /* The IRQ bits are split. */
268 irq = irqmap[((irqreg & 0x40) >> 4) + ((irqreg & 0x0c) >> 2)];
269
270 if (irq == 0) {
271 pr_cont(", failed to detect IRQ line.\n");
272 retval = -EAGAIN;
273 goto out;
274 }
275 dev->irq = irq;
276 eeprom_irq = 1;
277 }
278
279 /* The 8390 isn't at the base address, so fake the offset */
280 dev->base_addr = ioaddr+ULTRA_NIC_OFFSET;
281
282 {
283 static const int addr_tbl[4] = {
284 0x0C0000, 0x0E0000, 0xFC0000, 0xFE0000
285 };
286 static const short num_pages_tbl[4] = {
287 0x20, 0x40, 0x80, 0xff
288 };
289
290 dev->mem_start = ((addr & 0x0f) << 13) + addr_tbl[(addr >> 6) & 3] ;
291 num_pages = num_pages_tbl[(addr >> 4) & 3];
292 }
293
294 ei_status.name = model_name;
295 ei_status.word16 = 1;
296 ei_status.tx_start_page = START_PG;
297 ei_status.rx_start_page = START_PG + TX_PAGES;
298 ei_status.stop_page = num_pages;
299
300 ei_status.mem = ioremap(dev->mem_start, (ei_status.stop_page - START_PG)*256);
301 if (!ei_status.mem) {
302 pr_cont(", failed to ioremap.\n");
303 retval = -ENOMEM;
304 goto out;
305 }
306
307 dev->mem_end = dev->mem_start + (ei_status.stop_page - START_PG)*256;
308
309 if (piomode) {
310 pr_cont(", %s IRQ %d programmed-I/O mode.\n",
311 eeprom_irq ? "EEPROM" : "assigned ", dev->irq);
312 ei_status.block_input = &ultra_pio_input;
313 ei_status.block_output = &ultra_pio_output;
314 ei_status.get_8390_hdr = &ultra_pio_get_hdr;
315 } else {
316 pr_cont(", %s IRQ %d memory %#lx-%#lx.\n",
317 eeprom_irq ? "" : "assigned ", dev->irq, dev->mem_start,
318 dev->mem_end-1);
319 ei_status.block_input = &ultra_block_input;
320 ei_status.block_output = &ultra_block_output;
321 ei_status.get_8390_hdr = &ultra_get_8390_hdr;
322 }
323 ei_status.reset_8390 = &ultra_reset_8390;
324
325 dev->netdev_ops = &ultra_netdev_ops;
326 NS8390_init(dev, 0);
327 ei_local->msg_enable = ultra_msg_enable;
328
329 retval = register_netdev(dev);
330 if (retval)
331 goto out;
332 return 0;
333out:
334 release_region(ioaddr, ULTRA_IO_EXTENT);
335 return retval;
336}
337
338#ifdef __ISAPNP__
339static int __init ultra_probe_isapnp(struct net_device *dev)
340{
341 int i;
342
343 for (i = 0; ultra_device_ids[i].vendor != 0; i++) {
344 struct pnp_dev *idev = NULL;
345
346 while ((idev = pnp_find_dev(NULL,
347 ultra_device_ids[i].vendor,
348 ultra_device_ids[i].function,
349 idev))) {
350 /* Avoid already found cards from previous calls */
351 if (pnp_device_attach(idev) < 0)
352 continue;
353 if (pnp_activate_dev(idev) < 0) {
354 __again:
355 pnp_device_detach(idev);
356 continue;
357 }
358 /* if no io and irq, search for next */
359 if (!pnp_port_valid(idev, 0) || !pnp_irq_valid(idev, 0))
360 goto __again;
361 /* found it */
362 dev->base_addr = pnp_port_start(idev, 0);
363 dev->irq = pnp_irq(idev, 0);
364 netdev_info(dev,
365 "smc-ultra.c: ISAPnP reports %s at i/o %#lx, irq %d.\n",
366 (char *) ultra_device_ids[i].driver_data,
367 dev->base_addr, dev->irq);
368 if (ultra_probe1(dev, dev->base_addr) != 0) { /* Shouldn't happen. */
369 netdev_err(dev,
370 "smc-ultra.c: Probe of ISAPnP card at %#lx failed.\n",
371 dev->base_addr);
372 pnp_device_detach(idev);
373 return -ENXIO;
374 }
375 ei_status.priv = (unsigned long)idev;
376 break;
377 }
378 if (!idev)
379 continue;
380 return 0;
381 }
382
383 return -ENODEV;
384}
385#endif
386
387static int
388ultra_open(struct net_device *dev)
389{
390 int retval;
391 int ioaddr = dev->base_addr - ULTRA_NIC_OFFSET; /* ASIC addr */
392 unsigned char irq2reg[] = {0, 0, 0x04, 0x08, 0, 0x0C, 0, 0x40,
393 0, 0x04, 0x44, 0x48, 0, 0, 0, 0x4C, };
394
395 retval = request_irq(dev->irq, ei_interrupt, 0, dev->name, dev);
396 if (retval)
397 return retval;
398
399 outb(0x00, ioaddr); /* Disable shared memory for safety. */
400 outb(0x80, ioaddr + 5);
401 /* Set the IRQ line. */
402 outb(inb(ioaddr + 4) | 0x80, ioaddr + 4);
403 outb((inb(ioaddr + 13) & ~0x4C) | irq2reg[dev->irq], ioaddr + 13);
404 outb(inb(ioaddr + 4) & 0x7f, ioaddr + 4);
405
406 if (ei_status.block_input == &ultra_pio_input) {
407 outb(0x11, ioaddr + 6); /* Enable interrupts and PIO. */
408 outb(0x01, ioaddr + 0x19); /* Enable ring read auto-wrap. */
409 } else
410 outb(0x01, ioaddr + 6); /* Enable interrupts and memory. */
411 /* Set the early receive warning level in window 0 high enough not
412 to receive ERW interrupts. */
413 outb_p(E8390_NODMA+E8390_PAGE0, dev->base_addr);
414 outb(0xff, dev->base_addr + EN0_ERWCNT);
415 ei_open(dev);
416 return 0;
417}
418
419static void
420ultra_reset_8390(struct net_device *dev)
421{
422 int cmd_port = dev->base_addr - ULTRA_NIC_OFFSET; /* ASIC base addr */
423 struct ei_device *ei_local = netdev_priv(dev);
424
425 outb(ULTRA_RESET, cmd_port);
426 netif_dbg(ei_local, hw, dev, "resetting Ultra, t=%ld...\n", jiffies);
427 ei_status.txing = 0;
428
429 outb(0x00, cmd_port); /* Disable shared memory for safety. */
430 outb(0x80, cmd_port + 5);
431 if (ei_status.block_input == &ultra_pio_input)
432 outb(0x11, cmd_port + 6); /* Enable interrupts and PIO. */
433 else
434 outb(0x01, cmd_port + 6); /* Enable interrupts and memory. */
435
436 netif_dbg(ei_local, hw, dev, "reset done\n");
437}
438
439/* Grab the 8390 specific header. Similar to the block_input routine, but
440 we don't need to be concerned with ring wrap as the header will be at
441 the start of a page, so we optimize accordingly. */
442
443static void
444ultra_get_8390_hdr(struct net_device *dev, struct e8390_pkt_hdr *hdr, int ring_page)
445{
446 void __iomem *hdr_start = ei_status.mem + ((ring_page - START_PG)<<8);
447
448 outb(ULTRA_MEMENB, dev->base_addr - ULTRA_NIC_OFFSET); /* shmem on */
449#ifdef __BIG_ENDIAN
450 /* Officially this is what we are doing, but the readl() is faster */
451 /* unfortunately it isn't endian aware of the struct */
452 memcpy_fromio(hdr, hdr_start, sizeof(struct e8390_pkt_hdr));
453 hdr->count = le16_to_cpu(hdr->count);
454#else
455 ((unsigned int*)hdr)[0] = readl(hdr_start);
456#endif
457 outb(0x00, dev->base_addr - ULTRA_NIC_OFFSET); /* shmem off */
458}
459
460/* Block input and output are easy on shared memory ethercards, the only
461 complication is when the ring buffer wraps. */
462
463static void
464ultra_block_input(struct net_device *dev, int count, struct sk_buff *skb, int ring_offset)
465{
466 void __iomem *xfer_start = ei_status.mem + ring_offset - (START_PG<<8);
467
468 /* Enable shared memory. */
469 outb(ULTRA_MEMENB, dev->base_addr - ULTRA_NIC_OFFSET);
470
471 if (ring_offset + count > ei_status.stop_page*256) {
472 /* We must wrap the input move. */
473 int semi_count = ei_status.stop_page*256 - ring_offset;
474 memcpy_fromio(skb->data, xfer_start, semi_count);
475 count -= semi_count;
476 memcpy_fromio(skb->data + semi_count, ei_status.mem + TX_PAGES * 256, count);
477 } else {
478 memcpy_fromio(skb->data, xfer_start, count);
479 }
480
481 outb(0x00, dev->base_addr - ULTRA_NIC_OFFSET); /* Disable memory. */
482}
483
484static void
485ultra_block_output(struct net_device *dev, int count, const unsigned char *buf,
486 int start_page)
487{
488 void __iomem *shmem = ei_status.mem + ((start_page - START_PG)<<8);
489
490 /* Enable shared memory. */
491 outb(ULTRA_MEMENB, dev->base_addr - ULTRA_NIC_OFFSET);
492
493 memcpy_toio(shmem, buf, count);
494
495 outb(0x00, dev->base_addr - ULTRA_NIC_OFFSET); /* Disable memory. */
496}
497
498/* The identical operations for programmed I/O cards.
499 The PIO model is trivial to use: the 16 bit start address is written
500 byte-sequentially to IOPA, with no intervening I/O operations, and the
501 data is read or written to the IOPD data port.
502 The only potential complication is that the address register is shared
503 and must be always be rewritten between each read/write direction change.
504 This is no problem for us, as the 8390 code ensures that we are single
505 threaded. */
506static void ultra_pio_get_hdr(struct net_device *dev, struct e8390_pkt_hdr *hdr,
507 int ring_page)
508{
509 int ioaddr = dev->base_addr - ULTRA_NIC_OFFSET; /* ASIC addr */
510 outb(0x00, ioaddr + IOPA); /* Set the address, LSB first. */
511 outb(ring_page, ioaddr + IOPA);
512 insw(ioaddr + IOPD, hdr, sizeof(struct e8390_pkt_hdr)>>1);
513}
514
515static void ultra_pio_input(struct net_device *dev, int count,
516 struct sk_buff *skb, int ring_offset)
517{
518 int ioaddr = dev->base_addr - ULTRA_NIC_OFFSET; /* ASIC addr */
519 char *buf = skb->data;
520
521 /* For now set the address again, although it should already be correct. */
522 outb(ring_offset, ioaddr + IOPA); /* Set the address, LSB first. */
523 outb(ring_offset >> 8, ioaddr + IOPA);
524 /* We know skbuffs are padded to at least word alignment. */
525 insw(ioaddr + IOPD, buf, (count+1)>>1);
526}
527static void ultra_pio_output(struct net_device *dev, int count,
528 const unsigned char *buf, const int start_page)
529{
530 int ioaddr = dev->base_addr - ULTRA_NIC_OFFSET; /* ASIC addr */
531 outb(0x00, ioaddr + IOPA); /* Set the address, LSB first. */
532 outb(start_page, ioaddr + IOPA);
533 /* An extra odd byte is OK here as well. */
534 outsw(ioaddr + IOPD, buf, (count+1)>>1);
535}
536
537static int
538ultra_close_card(struct net_device *dev)
539{
540 int ioaddr = dev->base_addr - ULTRA_NIC_OFFSET; /* CMDREG */
541 struct ei_device *ei_local = netdev_priv(dev);
542
543 netif_stop_queue(dev);
544
545 netif_dbg(ei_local, ifdown, dev, "Shutting down ethercard.\n");
546
547 outb(0x00, ioaddr + 6); /* Disable interrupts. */
548 free_irq(dev->irq, dev);
549
550 NS8390_init(dev, 0);
551
552 /* We should someday disable shared memory and change to 8-bit mode
553 "just in case"... */
554
555 return 0;
556}
557
558
559#ifdef MODULE
560#define MAX_ULTRA_CARDS 4 /* Max number of Ultra cards per module */
561static struct net_device *dev_ultra[MAX_ULTRA_CARDS];
562static int io[MAX_ULTRA_CARDS];
563static int irq[MAX_ULTRA_CARDS];
564
565module_param_hw_array(io, int, ioport, NULL, 0);
566module_param_hw_array(irq, int, irq, NULL, 0);
567module_param_named(msg_enable, ultra_msg_enable, uint, 0444);
568MODULE_PARM_DESC(io, "I/O base address(es)");
569MODULE_PARM_DESC(irq, "IRQ number(s) (assigned)");
570MODULE_PARM_DESC(msg_enable, "Debug message level (see linux/netdevice.h for bitmap)");
571MODULE_DESCRIPTION("SMC Ultra/EtherEZ ISA/PnP Ethernet driver");
572MODULE_LICENSE("GPL");
573
574/* This is set up so that only a single autoprobe takes place per call.
575ISA device autoprobes on a running machine are not recommended. */
576static int __init ultra_init_module(void)
577{
578 struct net_device *dev;
579 int this_dev, found = 0;
580
581 for (this_dev = 0; this_dev < MAX_ULTRA_CARDS; this_dev++) {
582 if (io[this_dev] == 0) {
583 if (this_dev != 0) break; /* only autoprobe 1st one */
584 printk(KERN_NOTICE "smc-ultra.c: Presently autoprobing (not recommended) for a single card.\n");
585 }
586 dev = alloc_ei_netdev();
587 if (!dev)
588 break;
589 dev->irq = irq[this_dev];
590 dev->base_addr = io[this_dev];
591 if (do_ultra_probe(dev) == 0) {
592 dev_ultra[found++] = dev;
593 continue;
594 }
595 free_netdev(dev);
596 printk(KERN_WARNING "smc-ultra.c: No SMC Ultra card found (i/o = 0x%x).\n", io[this_dev]);
597 break;
598 }
599 if (found)
600 return 0;
601 return -ENXIO;
602}
603module_init(ultra_init_module);
604
605static void cleanup_card(struct net_device *dev)
606{
607 /* NB: ultra_close_card() does free_irq */
608#ifdef __ISAPNP__
609 struct pnp_dev *idev = (struct pnp_dev *)ei_status.priv;
610 if (idev)
611 pnp_device_detach(idev);
612#endif
613 release_region(dev->base_addr - ULTRA_NIC_OFFSET, ULTRA_IO_EXTENT);
614 iounmap(ei_status.mem);
615}
616
617static void __exit ultra_cleanup_module(void)
618{
619 int this_dev;
620
621 for (this_dev = 0; this_dev < MAX_ULTRA_CARDS; this_dev++) {
622 struct net_device *dev = dev_ultra[this_dev];
623 if (dev) {
624 unregister_netdev(dev);
625 cleanup_card(dev);
626 free_netdev(dev);
627 }
628 }
629}
630module_exit(ultra_cleanup_module);
631#endif /* MODULE */