1 /* 82596.c: A generic 82596 ethernet driver for linux. */
4 Written 1994 by Mark Evans.
5 This driver is for the Apricot 82596 bus-master interface
7 Modularised 12/94 Mark Evans
10 Modified to support the 82596 ethernet chips on 680x0 VME boards.
11 by Richard Hirst <richard@sleepie.demon.co.uk>
14 980825: Changed to receive directly in to sk_buffs which are
15 allocated at open() time. Eliminates copy on incoming frames
16 (small ones are still copied). Shared data now held in a
17 non-cached page, so we can run on 68060 in copyback mode.
20 * look at deferring rx frames rather than discarding (as per tulip)
21 * handle tx ring full as per tulip
22 * performace test to tune rx_copybreak
24 Most of my modifications relate to the braindead big-endian
25 implementation by Intel. When the i596 is operating in
26 'big-endian' mode, it thinks a 32 bit value of 0x12345678
27 should be stored as 0x56781234. This is a real pain, when
28 you have linked lists which are shared by the 680x0 and the
32 Written 1993 by Donald Becker.
33 Copyright 1993 United States Government as represented by the Director,
34 National Security Agency. This software may only be used and distributed
35 according to the terms of the GNU General Public License as modified by SRC,
36 incorporated herein by reference.
38 The author may be reached as becker@scyld.com, or C/O
39 Scyld Computing Corporation, 410 Severn Ave., Suite 210, Annapolis MD 21403
43 #include <linux/module.h>
44 #include <linux/kernel.h>
45 #include <linux/string.h>
46 #include <linux/errno.h>
47 #include <linux/ioport.h>
48 #include <linux/slab.h>
49 #include <linux/interrupt.h>
50 #include <linux/delay.h>
51 #include <linux/netdevice.h>
52 #include <linux/etherdevice.h>
53 #include <linux/skbuff.h>
54 #include <linux/init.h>
55 #include <linux/bitops.h>
59 #include <asm/pgtable.h>
60 #include <asm/cacheflush.h>
62 static char version[] __initdata =
63 "82596.c $Revision: 1.5 $\n";
65 #define DRV_NAME "82596"
70 #define DEB_INIT 0x0001
71 #define DEB_PROBE 0x0002
72 #define DEB_SERIOUS 0x0004
73 #define DEB_ERRORS 0x0008
74 #define DEB_MULTI 0x0010
75 #define DEB_TDR 0x0020
76 #define DEB_OPEN 0x0040
77 #define DEB_RESET 0x0080
78 #define DEB_ADDCMD 0x0100
79 #define DEB_STATUS 0x0200
80 #define DEB_STARTTX 0x0400
81 #define DEB_RXADDR 0x0800
82 #define DEB_TXADDR 0x1000
83 #define DEB_RXFRAME 0x2000
84 #define DEB_INTS 0x4000
85 #define DEB_STRUCT 0x8000
86 #define DEB_ANY 0xffff
89 #define DEB(x,y) if (i596_debug & (x)) y
92 #if defined(CONFIG_MVME16x_NET) || defined(CONFIG_MVME16x_NET_MODULE)
93 #define ENABLE_MVME16x_NET
95 #if defined(CONFIG_BVME6000_NET) || defined(CONFIG_BVME6000_NET_MODULE)
96 #define ENABLE_BVME6000_NET
98 #if defined(CONFIG_APRICOT) || defined(CONFIG_APRICOT_MODULE)
99 #define ENABLE_APRICOT
102 #ifdef ENABLE_MVME16x_NET
103 #include <asm/mvme16xhw.h>
105 #ifdef ENABLE_BVME6000_NET
106 #include <asm/bvme6000hw.h>
110 * Define various macros for Channel Attention, word swapping etc., dependent
111 * on architecture. MVME and BVME are 680x0 based, otherwise it is Intel.
115 #define WSWAPrfd(x) ((struct i596_rfd *) (((u32)(x)<<16) | ((((u32)(x)))>>16)))
116 #define WSWAPrbd(x) ((struct i596_rbd *) (((u32)(x)<<16) | ((((u32)(x)))>>16)))
117 #define WSWAPiscp(x) ((struct i596_iscp *)(((u32)(x)<<16) | ((((u32)(x)))>>16)))
118 #define WSWAPscb(x) ((struct i596_scb *) (((u32)(x)<<16) | ((((u32)(x)))>>16)))
119 #define WSWAPcmd(x) ((struct i596_cmd *) (((u32)(x)<<16) | ((((u32)(x)))>>16)))
120 #define WSWAPtbd(x) ((struct i596_tbd *) (((u32)(x)<<16) | ((((u32)(x)))>>16)))
121 #define WSWAPchar(x) ((char *) (((u32)(x)<<16) | ((((u32)(x)))>>16)))
122 #define ISCP_BUSY 0x00010000
123 #define MACH_IS_APRICOT 0
125 #define WSWAPrfd(x) ((struct i596_rfd *)(x))
126 #define WSWAPrbd(x) ((struct i596_rbd *)(x))
127 #define WSWAPiscp(x) ((struct i596_iscp *)(x))
128 #define WSWAPscb(x) ((struct i596_scb *)(x))
129 #define WSWAPcmd(x) ((struct i596_cmd *)(x))
130 #define WSWAPtbd(x) ((struct i596_tbd *)(x))
131 #define WSWAPchar(x) ((char *)(x))
132 #define ISCP_BUSY 0x0001
133 #define MACH_IS_APRICOT 1
137 * The MPU_PORT command allows direct access to the 82596. With PORT access
138 * the following commands are available (p5-18). The 32-bit port command
139 * must be word-swapped with the most significant word written first.
140 * This only applies to VME boards.
142 #define PORT_RESET 0x00 /* reset 82596 */
143 #define PORT_SELFTEST 0x01 /* selftest */
144 #define PORT_ALTSCP 0x02 /* alternate SCB address */
145 #define PORT_ALTDUMP 0x03 /* Alternate DUMP address */
147 static int i596_debug = (DEB_SERIOUS|DEB_PROBE);
149 MODULE_AUTHOR("Richard Hirst");
150 MODULE_DESCRIPTION("i82596 driver");
151 MODULE_LICENSE("GPL");
153 module_param(i596_debug, int, 0);
154 MODULE_PARM_DESC(i596_debug, "i82596 debug mask");
157 /* Copy frames shorter than rx_copybreak, otherwise pass on up in
158 * a full sized sk_buff. Value of 100 stolen from tulip.c (!alpha).
160 static int rx_copybreak = 100;
162 #define PKT_BUF_SZ 1536
163 #define MAX_MC_CNT 64
165 #define I596_TOTAL_SIZE 17
167 #define I596_NULL ((void *)0xffffffff)
169 #define CMD_EOL 0x8000 /* The last command of the list, stop. */
170 #define CMD_SUSP 0x4000 /* Suspend after doing cmd. */
171 #define CMD_INTR 0x2000 /* Interrupt after doing cmd. */
173 #define CMD_FLEX 0x0008 /* Enable flexible memory model */
176 CmdNOp = 0, CmdSASetup = 1, CmdConfigure = 2, CmdMulticastList = 3,
177 CmdTx = 4, CmdTDR = 5, CmdDump = 6, CmdDiagnose = 7
180 #define STAT_C 0x8000 /* Set to 0 after execution */
181 #define STAT_B 0x4000 /* Command being executed */
182 #define STAT_OK 0x2000 /* Command executed ok */
183 #define STAT_A 0x1000 /* Command aborted */
185 #define CUC_START 0x0100
186 #define CUC_RESUME 0x0200
187 #define CUC_SUSPEND 0x0300
188 #define CUC_ABORT 0x0400
189 #define RX_START 0x0010
190 #define RX_RESUME 0x0020
191 #define RX_SUSPEND 0x0030
192 #define RX_ABORT 0x0040
198 unsigned short porthi;
199 unsigned short portlo;
204 #define SIZE_MASK 0x3fff
209 struct i596_tbd *next;
213 /* The command structure has two 'next' pointers; v_next is the address of
214 * the next command as seen by the CPU, b_next is the address of the next
215 * command as seen by the 82596. The b_next pointer, as used by the 82596
216 * always references the status field of the next command, rather than the
217 * v_next field, because the 82596 is unaware of v_next. It may seem more
218 * logical to put v_next at the end of the structure, but we cannot do that
219 * because the 82596 expects other fields to be there, depending on command
224 struct i596_cmd *v_next; /* Address from CPUs viewpoint */
225 unsigned short status;
226 unsigned short command;
227 struct i596_cmd *b_next; /* Address from i596 viewpoint */
232 struct i596_tbd *tbd;
235 struct sk_buff *skb; /* So we can free it after tx */
240 unsigned short status;
247 char mc_addrs[MAX_MC_CNT*6];
257 char i596_config[16];
263 struct i596_rfd *b_next; /* Address from i596 viewpoint */
264 struct i596_rbd *rbd;
265 unsigned short count;
267 struct i596_rfd *v_next; /* Address from CPUs viewpoint */
268 struct i596_rfd *v_prev;
272 unsigned short count;
273 unsigned short zero1;
274 struct i596_rbd *b_next;
275 unsigned char *b_data; /* Address from i596 viewpoint */
277 unsigned short zero2;
279 struct i596_rbd *v_next;
280 struct i596_rbd *b_addr; /* This rbd addr from i596 view */
281 unsigned char *v_data; /* Address from CPUs viewpoint */
284 #define TX_RING_SIZE 64
285 #define RX_RING_SIZE 16
288 unsigned short status;
289 unsigned short command;
290 struct i596_cmd *cmd;
291 struct i596_rfd *rfd;
292 unsigned long crc_err;
293 unsigned long align_err;
294 unsigned long resource_err;
295 unsigned long over_err;
296 unsigned long rcvdt_err;
297 unsigned long short_err;
299 unsigned short t_off;
304 struct i596_scb *scb;
308 unsigned long sysbus;
310 struct i596_iscp *iscp;
313 struct i596_private {
314 volatile struct i596_scp scp;
315 volatile struct i596_iscp iscp;
316 volatile struct i596_scb scb;
317 struct sa_cmd sa_cmd;
318 struct cf_cmd cf_cmd;
319 struct tdr_cmd tdr_cmd;
320 struct mc_cmd mc_cmd;
322 int last_restart __attribute__((aligned(4)));
323 struct i596_rfd *rfd_head;
324 struct i596_rbd *rbd_head;
325 struct i596_cmd *cmd_tail;
326 struct i596_cmd *cmd_head;
328 unsigned long last_cmd;
329 struct net_device_stats stats;
330 struct i596_rfd rfds[RX_RING_SIZE];
331 struct i596_rbd rbds[RX_RING_SIZE];
332 struct tx_cmd tx_cmds[TX_RING_SIZE];
333 struct i596_tbd tbds[TX_RING_SIZE];
338 static char init_setup[] =
340 0x8E, /* length, prefetch on */
341 0xC8, /* fifo to 8, monitor off */
343 0xc0, /* don't save bad frames */
345 0x80, /* don't save bad frames */
347 0x2E, /* No source address insertion, 8 byte preamble */
348 0x00, /* priority and backoff defaults */
349 0x60, /* interframe spacing */
350 0x00, /* slot time LSB */
351 0xf2, /* slot time and retries */
352 0x00, /* promiscuous mode */
353 0x00, /* collision detect */
354 0x40, /* minimum frame length */
357 0x7f /* *multi IA */ };
359 static int i596_open(struct net_device *dev);
360 static int i596_start_xmit(struct sk_buff *skb, struct net_device *dev);
361 static irqreturn_t i596_interrupt(int irq, void *dev_id);
362 static int i596_close(struct net_device *dev);
363 static struct net_device_stats *i596_get_stats(struct net_device *dev);
364 static void i596_add_cmd(struct net_device *dev, struct i596_cmd *cmd);
365 static void i596_tx_timeout (struct net_device *dev);
366 static void print_eth(unsigned char *buf, char *str);
367 static void set_multicast_list(struct net_device *dev);
369 static int rx_ring_size = RX_RING_SIZE;
370 static int ticks_limit = 25;
371 static int max_cmd_backlog = TX_RING_SIZE-1;
374 static inline void CA(struct net_device *dev)
376 #ifdef ENABLE_MVME16x_NET
377 if (MACH_IS_MVME16x) {
378 ((struct i596_reg *) dev->base_addr)->ca = 1;
381 #ifdef ENABLE_BVME6000_NET
382 if (MACH_IS_BVME6000) {
385 i = *(volatile u32 *) (dev->base_addr);
388 #ifdef ENABLE_APRICOT
389 if (MACH_IS_APRICOT) {
390 outw(0, (short) (dev->base_addr) + 4);
396 static inline void MPU_PORT(struct net_device *dev, int c, volatile void *x)
398 #ifdef ENABLE_MVME16x_NET
399 if (MACH_IS_MVME16x) {
400 struct i596_reg *p = (struct i596_reg *) (dev->base_addr);
401 p->porthi = ((c) | (u32) (x)) & 0xffff;
402 p->portlo = ((c) | (u32) (x)) >> 16;
405 #ifdef ENABLE_BVME6000_NET
406 if (MACH_IS_BVME6000) {
407 u32 v = (u32) (c) | (u32) (x);
408 v = ((u32) (v) << 16) | ((u32) (v) >> 16);
409 *(volatile u32 *) dev->base_addr = v;
411 *(volatile u32 *) dev->base_addr = v;
417 static inline int wait_istat(struct net_device *dev, struct i596_private *lp, int delcnt, char *str)
419 while (--delcnt && lp->iscp.stat)
422 printk(KERN_ERR "%s: %s, status %4.4x, cmd %4.4x.\n",
423 dev->name, str, lp->scb.status, lp->scb.command);
431 static inline int wait_cmd(struct net_device *dev, struct i596_private *lp, int delcnt, char *str)
433 while (--delcnt && lp->scb.command)
436 printk(KERN_ERR "%s: %s, status %4.4x, cmd %4.4x.\n",
437 dev->name, str, lp->scb.status, lp->scb.command);
445 static inline int wait_cfg(struct net_device *dev, struct i596_cmd *cmd, int delcnt, char *str)
447 volatile struct i596_cmd *c = cmd;
449 while (--delcnt && c->command)
452 printk(KERN_ERR "%s: %s.\n", dev->name, str);
460 static void i596_display_data(struct net_device *dev)
462 struct i596_private *lp = dev->priv;
463 struct i596_cmd *cmd;
464 struct i596_rfd *rfd;
465 struct i596_rbd *rbd;
467 printk(KERN_ERR "lp and scp at %p, .sysbus = %08lx, .iscp = %p\n",
468 &lp->scp, lp->scp.sysbus, lp->scp.iscp);
469 printk(KERN_ERR "iscp at %p, iscp.stat = %08lx, .scb = %p\n",
470 &lp->iscp, lp->iscp.stat, lp->iscp.scb);
471 printk(KERN_ERR "scb at %p, scb.status = %04x, .command = %04x,"
472 " .cmd = %p, .rfd = %p\n",
473 &lp->scb, lp->scb.status, lp->scb.command,
474 lp->scb.cmd, lp->scb.rfd);
475 printk(KERN_ERR " errors: crc %lx, align %lx, resource %lx,"
476 " over %lx, rcvdt %lx, short %lx\n",
477 lp->scb.crc_err, lp->scb.align_err, lp->scb.resource_err,
478 lp->scb.over_err, lp->scb.rcvdt_err, lp->scb.short_err);
480 while (cmd != I596_NULL) {
481 printk(KERN_ERR "cmd at %p, .status = %04x, .command = %04x, .b_next = %p\n",
482 cmd, cmd->status, cmd->command, cmd->b_next);
486 printk(KERN_ERR "rfd_head = %p\n", rfd);
488 printk(KERN_ERR " %p .stat %04x, .cmd %04x, b_next %p, rbd %p,"
490 rfd, rfd->stat, rfd->cmd, rfd->b_next, rfd->rbd,
493 } while (rfd != lp->rfd_head);
495 printk(KERN_ERR "rbd_head = %p\n", rbd);
497 printk(KERN_ERR " %p .count %04x, b_next %p, b_data %p, size %04x\n",
498 rbd, rbd->count, rbd->b_next, rbd->b_data, rbd->size);
500 } while (rbd != lp->rbd_head);
504 #if defined(ENABLE_MVME16x_NET) || defined(ENABLE_BVME6000_NET)
505 static irqreturn_t i596_error(int irq, void *dev_id)
507 struct net_device *dev = dev_id;
508 #ifdef ENABLE_MVME16x_NET
509 if (MACH_IS_MVME16x) {
510 volatile unsigned char *pcc2 = (unsigned char *) 0xfff42000;
516 #ifdef ENABLE_BVME6000_NET
517 if (MACH_IS_BVME6000) {
518 volatile unsigned char *ethirq = (unsigned char *) BVME_ETHIRQ_REG;
524 printk(KERN_ERR "%s: Error interrupt\n", dev->name);
525 i596_display_data(dev);
530 static inline void init_rx_bufs(struct net_device *dev)
532 struct i596_private *lp = dev->priv;
534 struct i596_rfd *rfd;
535 struct i596_rbd *rbd;
537 /* First build the Receive Buffer Descriptor List */
539 for (i = 0, rbd = lp->rbds; i < rx_ring_size; i++, rbd++) {
540 struct sk_buff *skb = dev_alloc_skb(PKT_BUF_SZ);
543 panic("82596: alloc_skb() failed");
546 rbd->b_next = WSWAPrbd(virt_to_bus(rbd+1));
547 rbd->b_addr = WSWAPrbd(virt_to_bus(rbd));
549 rbd->v_data = skb->data;
550 rbd->b_data = WSWAPchar(virt_to_bus(skb->data));
551 rbd->size = PKT_BUF_SZ;
553 cache_clear(virt_to_phys(skb->data), PKT_BUF_SZ);
556 lp->rbd_head = lp->rbds;
557 rbd = lp->rbds + rx_ring_size - 1;
558 rbd->v_next = lp->rbds;
559 rbd->b_next = WSWAPrbd(virt_to_bus(lp->rbds));
561 /* Now build the Receive Frame Descriptor List */
563 for (i = 0, rfd = lp->rfds; i < rx_ring_size; i++, rfd++) {
564 rfd->rbd = I596_NULL;
567 rfd->b_next = WSWAPrfd(virt_to_bus(rfd+1));
570 lp->rfd_head = lp->rfds;
571 lp->scb.rfd = WSWAPrfd(virt_to_bus(lp->rfds));
573 rfd->rbd = lp->rbd_head;
574 rfd->v_prev = lp->rfds + rx_ring_size - 1;
575 rfd = lp->rfds + rx_ring_size - 1;
576 rfd->v_next = lp->rfds;
577 rfd->b_next = WSWAPrfd(virt_to_bus(lp->rfds));
578 rfd->cmd = CMD_EOL|CMD_FLEX;
581 static inline void remove_rx_bufs(struct net_device *dev)
583 struct i596_private *lp = dev->priv;
584 struct i596_rbd *rbd;
587 for (i = 0, rbd = lp->rbds; i < rx_ring_size; i++, rbd++) {
588 if (rbd->skb == NULL)
590 dev_kfree_skb(rbd->skb);
595 static void rebuild_rx_bufs(struct net_device *dev)
597 struct i596_private *lp = dev->priv;
600 /* Ensure rx frame/buffer descriptors are tidy */
602 for (i = 0; i < rx_ring_size; i++) {
603 lp->rfds[i].rbd = I596_NULL;
604 lp->rfds[i].cmd = CMD_FLEX;
606 lp->rfds[rx_ring_size-1].cmd = CMD_EOL|CMD_FLEX;
607 lp->rfd_head = lp->rfds;
608 lp->scb.rfd = WSWAPrfd(virt_to_bus(lp->rfds));
609 lp->rbd_head = lp->rbds;
610 lp->rfds[0].rbd = WSWAPrbd(virt_to_bus(lp->rbds));
614 static int init_i596_mem(struct net_device *dev)
616 struct i596_private *lp = dev->priv;
617 #if !defined(ENABLE_MVME16x_NET) && !defined(ENABLE_BVME6000_NET) || defined(ENABLE_APRICOT)
618 short ioaddr = dev->base_addr;
622 MPU_PORT(dev, PORT_RESET, NULL);
624 udelay(100); /* Wait 100us - seems to help */
626 #if defined(ENABLE_MVME16x_NET) || defined(ENABLE_BVME6000_NET)
627 #ifdef ENABLE_MVME16x_NET
628 if (MACH_IS_MVME16x) {
629 volatile unsigned char *pcc2 = (unsigned char *) 0xfff42000;
631 /* Disable all ints for now */
634 /* Following disables snooping. Snooping is not required
635 * as we make appropriate use of non-cached pages for
636 * shared data, and cache_push/cache_clear.
641 #ifdef ENABLE_BVME6000_NET
642 if (MACH_IS_BVME6000) {
643 volatile unsigned char *ethirq = (unsigned char *) BVME_ETHIRQ_REG;
649 /* change the scp address */
651 MPU_PORT(dev, PORT_ALTSCP, (void *)virt_to_bus((void *)&lp->scp));
653 #elif defined(ENABLE_APRICOT)
656 u32 scp = virt_to_bus(&lp->scp);
658 /* change the scp address */
661 outb(4, ioaddr + 0xf);
662 outw(scp | 2, ioaddr);
663 outw(scp >> 16, ioaddr);
667 lp->last_cmd = jiffies;
669 #ifdef ENABLE_MVME16x_NET
671 lp->scp.sysbus = 0x00000054;
673 #ifdef ENABLE_BVME6000_NET
674 if (MACH_IS_BVME6000)
675 lp->scp.sysbus = 0x0000004c;
677 #ifdef ENABLE_APRICOT
679 lp->scp.sysbus = 0x00440000;
682 lp->scp.iscp = WSWAPiscp(virt_to_bus((void *)&lp->iscp));
683 lp->iscp.scb = WSWAPscb(virt_to_bus((void *)&lp->scb));
684 lp->iscp.stat = ISCP_BUSY;
687 lp->cmd_head = lp->scb.cmd = I596_NULL;
689 #ifdef ENABLE_BVME6000_NET
690 if (MACH_IS_BVME6000) {
691 lp->scb.t_on = 7 * 25;
692 lp->scb.t_off = 1 * 25;
696 DEB(DEB_INIT,printk(KERN_DEBUG "%s: starting i82596.\n", dev->name));
698 #if defined(ENABLE_APRICOT)
699 (void) inb(ioaddr + 0x10);
700 outb(4, ioaddr + 0xf);
704 if (wait_istat(dev,lp,1000,"initialization timed out"))
706 DEB(DEB_INIT,printk(KERN_DEBUG "%s: i82596 initialization successful\n", dev->name));
708 /* Ensure rx frame/buffer descriptors are tidy */
709 rebuild_rx_bufs(dev);
712 #ifdef ENABLE_MVME16x_NET
713 if (MACH_IS_MVME16x) {
714 volatile unsigned char *pcc2 = (unsigned char *) 0xfff42000;
716 /* Enable ints, etc. now */
717 pcc2[0x2a] = 0x55; /* Edge sensitive */
721 #ifdef ENABLE_BVME6000_NET
722 if (MACH_IS_BVME6000) {
723 volatile unsigned char *ethirq = (unsigned char *) BVME_ETHIRQ_REG;
730 DEB(DEB_INIT,printk(KERN_DEBUG "%s: queuing CmdConfigure\n", dev->name));
731 memcpy(lp->cf_cmd.i596_config, init_setup, 14);
732 lp->cf_cmd.cmd.command = CmdConfigure;
733 i596_add_cmd(dev, &lp->cf_cmd.cmd);
735 DEB(DEB_INIT,printk(KERN_DEBUG "%s: queuing CmdSASetup\n", dev->name));
736 memcpy(lp->sa_cmd.eth_addr, dev->dev_addr, 6);
737 lp->sa_cmd.cmd.command = CmdSASetup;
738 i596_add_cmd(dev, &lp->sa_cmd.cmd);
740 DEB(DEB_INIT,printk(KERN_DEBUG "%s: queuing CmdTDR\n", dev->name));
741 lp->tdr_cmd.cmd.command = CmdTDR;
742 i596_add_cmd(dev, &lp->tdr_cmd.cmd);
744 spin_lock_irqsave (&lp->lock, flags);
746 if (wait_cmd(dev,lp,1000,"timed out waiting to issue RX_START")) {
747 spin_unlock_irqrestore (&lp->lock, flags);
750 DEB(DEB_INIT,printk(KERN_DEBUG "%s: Issuing RX_START\n", dev->name));
751 lp->scb.command = RX_START;
754 spin_unlock_irqrestore (&lp->lock, flags);
756 if (wait_cmd(dev,lp,1000,"RX_START not processed"))
758 DEB(DEB_INIT,printk(KERN_DEBUG "%s: Receive unit started OK\n", dev->name));
762 printk(KERN_CRIT "%s: Failed to initialise 82596\n", dev->name);
763 MPU_PORT(dev, PORT_RESET, NULL);
767 static inline int i596_rx(struct net_device *dev)
769 struct i596_private *lp = dev->priv;
770 struct i596_rfd *rfd;
771 struct i596_rbd *rbd;
774 DEB(DEB_RXFRAME,printk(KERN_DEBUG "i596_rx(), rfd_head %p, rbd_head %p\n",
775 lp->rfd_head, lp->rbd_head));
777 rfd = lp->rfd_head; /* Ref next frame to check */
779 while ((rfd->stat) & STAT_C) { /* Loop while complete frames */
780 if (rfd->rbd == I596_NULL)
782 else if (rfd->rbd == lp->rbd_head->b_addr)
785 printk(KERN_CRIT "%s: rbd chain broken!\n", dev->name);
789 DEB(DEB_RXFRAME, printk(KERN_DEBUG " rfd %p, rfd.rbd %p, rfd.stat %04x\n",
790 rfd, rfd->rbd, rfd->stat));
792 if (rbd != I596_NULL && ((rfd->stat) & STAT_OK)) {
794 int pkt_len = rbd->count & 0x3fff;
795 struct sk_buff *skb = rbd->skb;
798 DEB(DEB_RXADDR,print_eth(rbd->v_data, "received"));
801 /* Check if the packet is long enough to just accept
802 * without copying to a properly sized skbuff.
805 if (pkt_len > rx_copybreak) {
806 struct sk_buff *newskb;
808 /* Get fresh skbuff to replace filled one. */
809 newskb = dev_alloc_skb(PKT_BUF_SZ);
810 if (newskb == NULL) {
811 skb = NULL; /* drop pkt */
814 /* Pass up the skb already on the Rx ring. */
815 skb_put(skb, pkt_len);
819 rbd->v_data = newskb->data;
820 rbd->b_data = WSWAPchar(virt_to_bus(newskb->data));
822 cache_clear(virt_to_phys(newskb->data), PKT_BUF_SZ);
826 skb = dev_alloc_skb(pkt_len + 2);
829 /* XXX tulip.c can defer packets here!! */
830 printk(KERN_WARNING "%s: i596_rx Memory squeeze, dropping packet.\n", dev->name);
831 lp->stats.rx_dropped++;
835 /* 16 byte align the data fields */
837 memcpy(skb_put(skb,pkt_len), rbd->v_data, pkt_len);
839 skb->protocol=eth_type_trans(skb,dev);
842 cache_clear(virt_to_phys(rbd->skb->data),
846 dev->last_rx = jiffies;
847 lp->stats.rx_packets++;
848 lp->stats.rx_bytes+=pkt_len;
852 DEB(DEB_ERRORS, printk(KERN_DEBUG "%s: Error, rfd.stat = 0x%04x\n",
853 dev->name, rfd->stat));
854 lp->stats.rx_errors++;
855 if ((rfd->stat) & 0x0001)
856 lp->stats.collisions++;
857 if ((rfd->stat) & 0x0080)
858 lp->stats.rx_length_errors++;
859 if ((rfd->stat) & 0x0100)
860 lp->stats.rx_over_errors++;
861 if ((rfd->stat) & 0x0200)
862 lp->stats.rx_fifo_errors++;
863 if ((rfd->stat) & 0x0400)
864 lp->stats.rx_frame_errors++;
865 if ((rfd->stat) & 0x0800)
866 lp->stats.rx_crc_errors++;
867 if ((rfd->stat) & 0x1000)
868 lp->stats.rx_length_errors++;
871 /* Clear the buffer descriptor count and EOF + F flags */
873 if (rbd != I596_NULL && (rbd->count & 0x4000)) {
875 lp->rbd_head = rbd->v_next;
878 /* Tidy the frame descriptor, marking it as end of list */
880 rfd->rbd = I596_NULL;
882 rfd->cmd = CMD_EOL|CMD_FLEX;
885 /* Remove end-of-list from old end descriptor */
887 rfd->v_prev->cmd = CMD_FLEX;
889 /* Update record of next frame descriptor to process */
891 lp->scb.rfd = rfd->b_next;
892 lp->rfd_head = rfd->v_next;
896 DEB(DEB_RXFRAME,printk(KERN_DEBUG "frames %d\n", frames));
902 static void i596_cleanup_cmd(struct net_device *dev, struct i596_private *lp)
904 struct i596_cmd *ptr;
906 while (lp->cmd_head != I596_NULL) {
908 lp->cmd_head = ptr->v_next;
911 switch ((ptr->command) & 0x7) {
914 struct tx_cmd *tx_cmd = (struct tx_cmd *) ptr;
915 struct sk_buff *skb = tx_cmd->skb;
919 lp->stats.tx_errors++;
920 lp->stats.tx_aborted_errors++;
922 ptr->v_next = ptr->b_next = I596_NULL;
923 tx_cmd->cmd.command = 0; /* Mark as free */
927 ptr->v_next = ptr->b_next = I596_NULL;
931 wait_cmd(dev,lp,100,"i596_cleanup_cmd timed out");
932 lp->scb.cmd = I596_NULL;
935 static void i596_reset(struct net_device *dev, struct i596_private *lp,
940 DEB(DEB_RESET,printk(KERN_DEBUG "i596_reset\n"));
942 spin_lock_irqsave (&lp->lock, flags);
944 wait_cmd(dev,lp,100,"i596_reset timed out");
946 netif_stop_queue(dev);
948 lp->scb.command = CUC_ABORT | RX_ABORT;
951 /* wait for shutdown */
952 wait_cmd(dev,lp,1000,"i596_reset 2 timed out");
953 spin_unlock_irqrestore (&lp->lock, flags);
955 i596_cleanup_cmd(dev,lp);
958 netif_start_queue(dev);
962 static void i596_add_cmd(struct net_device *dev, struct i596_cmd *cmd)
964 struct i596_private *lp = dev->priv;
965 int ioaddr = dev->base_addr;
968 DEB(DEB_ADDCMD,printk(KERN_DEBUG "i596_add_cmd\n"));
971 cmd->command |= (CMD_EOL | CMD_INTR);
972 cmd->v_next = cmd->b_next = I596_NULL;
974 spin_lock_irqsave (&lp->lock, flags);
976 if (lp->cmd_head != I596_NULL) {
977 lp->cmd_tail->v_next = cmd;
978 lp->cmd_tail->b_next = WSWAPcmd(virt_to_bus(&cmd->status));
981 wait_cmd(dev,lp,100,"i596_add_cmd timed out");
982 lp->scb.cmd = WSWAPcmd(virt_to_bus(&cmd->status));
983 lp->scb.command = CUC_START;
989 spin_unlock_irqrestore (&lp->lock, flags);
991 if (lp->cmd_backlog > max_cmd_backlog) {
992 unsigned long tickssofar = jiffies - lp->last_cmd;
994 if (tickssofar < ticks_limit)
997 printk(KERN_NOTICE "%s: command unit timed out, status resetting.\n", dev->name);
999 i596_reset(dev, lp, ioaddr);
1003 static int i596_open(struct net_device *dev)
1007 DEB(DEB_OPEN,printk(KERN_DEBUG "%s: i596_open() irq %d.\n", dev->name, dev->irq));
1009 if (request_irq(dev->irq, i596_interrupt, 0, "i82596", dev)) {
1010 printk(KERN_ERR "%s: IRQ %d not free\n", dev->name, dev->irq);
1013 #ifdef ENABLE_MVME16x_NET
1014 if (MACH_IS_MVME16x) {
1015 if (request_irq(0x56, i596_error, 0, "i82596_error", dev))
1021 netif_start_queue(dev);
1023 /* Initialize the 82596 memory */
1024 if (init_i596_mem(dev)) {
1026 free_irq(dev->irq, dev);
1032 static void i596_tx_timeout (struct net_device *dev)
1034 struct i596_private *lp = dev->priv;
1035 int ioaddr = dev->base_addr;
1037 /* Transmitter timeout, serious problems. */
1038 DEB(DEB_ERRORS,printk(KERN_ERR "%s: transmit timed out, status resetting.\n",
1041 lp->stats.tx_errors++;
1043 /* Try to restart the adaptor */
1044 if (lp->last_restart == lp->stats.tx_packets) {
1045 DEB(DEB_ERRORS,printk(KERN_ERR "Resetting board.\n"));
1046 /* Shutdown and restart */
1047 i596_reset (dev, lp, ioaddr);
1049 /* Issue a channel attention signal */
1050 DEB(DEB_ERRORS,printk(KERN_ERR "Kicking board.\n"));
1051 lp->scb.command = CUC_START | RX_START;
1053 lp->last_restart = lp->stats.tx_packets;
1056 dev->trans_start = jiffies;
1057 netif_wake_queue (dev);
1061 static int i596_start_xmit(struct sk_buff *skb, struct net_device *dev)
1063 struct i596_private *lp = dev->priv;
1064 struct tx_cmd *tx_cmd;
1065 struct i596_tbd *tbd;
1066 short length = skb->len;
1067 dev->trans_start = jiffies;
1069 DEB(DEB_STARTTX,printk(KERN_DEBUG "%s: i596_start_xmit(%x,%p) called\n",
1070 dev->name, skb->len, skb->data));
1072 if (skb->len < ETH_ZLEN) {
1073 if (skb_padto(skb, ETH_ZLEN))
1077 netif_stop_queue(dev);
1079 tx_cmd = lp->tx_cmds + lp->next_tx_cmd;
1080 tbd = lp->tbds + lp->next_tx_cmd;
1082 if (tx_cmd->cmd.command) {
1083 printk(KERN_NOTICE "%s: xmit ring full, dropping packet.\n",
1085 lp->stats.tx_dropped++;
1089 if (++lp->next_tx_cmd == TX_RING_SIZE)
1090 lp->next_tx_cmd = 0;
1091 tx_cmd->tbd = WSWAPtbd(virt_to_bus(tbd));
1092 tbd->next = I596_NULL;
1094 tx_cmd->cmd.command = CMD_FLEX | CmdTx;
1100 tbd->size = EOF | length;
1102 tbd->data = WSWAPchar(virt_to_bus(skb->data));
1105 cache_push(virt_to_phys(skb->data), length);
1107 DEB(DEB_TXADDR,print_eth(skb->data, "tx-queued"));
1108 i596_add_cmd(dev, &tx_cmd->cmd);
1110 lp->stats.tx_packets++;
1111 lp->stats.tx_bytes += length;
1114 netif_start_queue(dev);
1119 static void print_eth(unsigned char *add, char *str)
1123 printk(KERN_DEBUG "i596 0x%p, ", add);
1124 for (i = 0; i < 6; i++)
1125 printk(" %02X", add[i + 6]);
1127 for (i = 0; i < 6; i++)
1128 printk(" %02X", add[i]);
1129 printk(" %02X%02X, %s\n", add[12], add[13], str);
1132 static int io = 0x300;
1133 static int irq = 10;
1135 struct net_device * __init i82596_probe(int unit)
1137 struct net_device *dev;
1139 struct i596_private *lp;
1145 return ERR_PTR(-ENODEV);
1148 dev = alloc_etherdev(0);
1150 return ERR_PTR(-ENOMEM);
1153 sprintf(dev->name, "eth%d", unit);
1154 netdev_boot_setup_check(dev);
1156 dev->base_addr = io;
1160 #ifdef ENABLE_MVME16x_NET
1161 if (MACH_IS_MVME16x) {
1162 if (mvme16x_config & MVME16x_CONFIG_NO_ETHERNET) {
1163 printk(KERN_NOTICE "Ethernet probe disabled - chip not present\n");
1167 memcpy(eth_addr, (void *) 0xfffc1f2c, 6); /* YUCK! Get addr from NOVRAM */
1168 dev->base_addr = MVME_I596_BASE;
1169 dev->irq = (unsigned) MVME16x_IRQ_I596;
1172 #ifdef ENABLE_BVME6000_NET
1173 if (MACH_IS_BVME6000) {
1174 volatile unsigned char *rtc = (unsigned char *) BVME_RTC_BASE;
1175 unsigned char msr = rtc[3];
1179 for (i = 0; i < 6; i++)
1180 eth_addr[i] = rtc[i * 4 + 7]; /* Stored in RTC RAM at offset 1 */
1182 dev->base_addr = BVME_I596_BASE;
1183 dev->irq = (unsigned) BVME_IRQ_I596;
1186 #ifdef ENABLE_APRICOT
1191 /* this is easy the ethernet interface can only be at 0x300 */
1192 /* first check nothing is already registered here */
1194 if (!request_region(ioaddr, I596_TOTAL_SIZE, DRV_NAME)) {
1195 printk(KERN_ERR "82596: IO address 0x%04x in use\n", ioaddr);
1200 for (i = 0; i < 8; i++) {
1201 eth_addr[i] = inb(ioaddr + 8 + i);
1202 checksum += eth_addr[i];
1205 /* checksum is a multiple of 0x100, got this wrong first time
1206 some machines have 0x100, some 0x200. The DOS driver doesn't
1207 even bother with the checksum.
1208 Some other boards trip the checksum.. but then appear as
1209 ether address 0. Trap these - AC */
1211 if ((checksum % 0x100) ||
1212 (memcmp(eth_addr, "\x00\x00\x49", 3) != 0)) {
1217 dev->base_addr = ioaddr;
1221 dev->mem_start = (int)__get_free_pages(GFP_ATOMIC, 0);
1222 if (!dev->mem_start) {
1227 DEB(DEB_PROBE,printk(KERN_INFO "%s: 82596 at %#3lx,", dev->name, dev->base_addr));
1229 for (i = 0; i < 6; i++)
1230 DEB(DEB_PROBE,printk(" %2.2X", dev->dev_addr[i] = eth_addr[i]));
1232 DEB(DEB_PROBE,printk(" IRQ %d.\n", dev->irq));
1234 DEB(DEB_PROBE,printk(KERN_INFO "%s", version));
1236 /* The 82596-specific entries in the device structure. */
1237 SET_MODULE_OWNER(dev);
1238 dev->open = i596_open;
1239 dev->stop = i596_close;
1240 dev->hard_start_xmit = i596_start_xmit;
1241 dev->get_stats = i596_get_stats;
1242 dev->set_multicast_list = set_multicast_list;
1243 dev->tx_timeout = i596_tx_timeout;
1244 dev->watchdog_timeo = TX_TIMEOUT;
1246 dev->priv = (void *)(dev->mem_start);
1249 DEB(DEB_INIT,printk(KERN_DEBUG "%s: lp at 0x%08lx (%zd bytes), "
1250 "lp->scb at 0x%08lx\n",
1251 dev->name, (unsigned long)lp,
1252 sizeof(struct i596_private), (unsigned long)&lp->scb));
1253 memset((void *) lp, 0, sizeof(struct i596_private));
1256 cache_push(virt_to_phys((void *)(dev->mem_start)), 4096);
1257 cache_clear(virt_to_phys((void *)(dev->mem_start)), 4096);
1258 kernel_set_cachemode((void *)(dev->mem_start), 4096, IOMAP_NOCACHE_SER);
1260 lp->scb.command = 0;
1261 lp->scb.cmd = I596_NULL;
1262 lp->scb.rfd = I596_NULL;
1263 spin_lock_init(&lp->lock);
1265 err = register_netdev(dev);
1271 /* XXX This assumes default cache mode to be IOMAP_FULL_CACHING,
1272 * XXX which may be invalid (CONFIG_060_WRITETHROUGH)
1274 kernel_set_cachemode((void *)(dev->mem_start), 4096,
1275 IOMAP_FULL_CACHING);
1277 free_page ((u32)(dev->mem_start));
1279 #ifdef ENABLE_APRICOT
1280 release_region(dev->base_addr, I596_TOTAL_SIZE);
1284 return ERR_PTR(err);
1287 static irqreturn_t i596_interrupt(int irq, void *dev_id)
1289 struct net_device *dev = dev_id;
1290 struct i596_private *lp;
1292 unsigned short status, ack_cmd = 0;
1295 #ifdef ENABLE_BVME6000_NET
1296 if (MACH_IS_BVME6000) {
1297 if (*(char *) BVME_LOCAL_IRQ_STAT & BVME_ETHERR) {
1298 i596_error(irq, dev_id);
1304 printk(KERN_ERR "i596_interrupt(): irq %d for unknown device.\n", irq);
1308 ioaddr = dev->base_addr;
1311 spin_lock (&lp->lock);
1313 wait_cmd(dev,lp,100,"i596 interrupt, timeout");
1314 status = lp->scb.status;
1316 DEB(DEB_INTS,printk(KERN_DEBUG "%s: i596 interrupt, IRQ %d, status %4.4x.\n",
1317 dev->name, irq, status));
1319 ack_cmd = status & 0xf000;
1321 if ((status & 0x8000) || (status & 0x2000)) {
1322 struct i596_cmd *ptr;
1325 if ((status & 0x8000))
1326 DEB(DEB_INTS,printk(KERN_DEBUG "%s: i596 interrupt completed command.\n", dev->name));
1327 if ((status & 0x2000))
1328 DEB(DEB_INTS,printk(KERN_DEBUG "%s: i596 interrupt command unit inactive %x.\n", dev->name, status & 0x0700));
1330 while ((lp->cmd_head != I596_NULL) && (lp->cmd_head->status & STAT_C)) {
1333 DEB(DEB_STATUS,printk(KERN_DEBUG "cmd_head->status = %04x, ->command = %04x\n",
1334 lp->cmd_head->status, lp->cmd_head->command));
1335 lp->cmd_head = ptr->v_next;
1338 switch ((ptr->command) & 0x7) {
1341 struct tx_cmd *tx_cmd = (struct tx_cmd *) ptr;
1342 struct sk_buff *skb = tx_cmd->skb;
1344 if ((ptr->status) & STAT_OK) {
1345 DEB(DEB_TXADDR,print_eth(skb->data, "tx-done"));
1347 lp->stats.tx_errors++;
1348 if ((ptr->status) & 0x0020)
1349 lp->stats.collisions++;
1350 if (!((ptr->status) & 0x0040))
1351 lp->stats.tx_heartbeat_errors++;
1352 if ((ptr->status) & 0x0400)
1353 lp->stats.tx_carrier_errors++;
1354 if ((ptr->status) & 0x0800)
1355 lp->stats.collisions++;
1356 if ((ptr->status) & 0x1000)
1357 lp->stats.tx_aborted_errors++;
1360 dev_kfree_skb_irq(skb);
1362 tx_cmd->cmd.command = 0; /* Mark free */
1367 unsigned short status = ((struct tdr_cmd *)ptr)->status;
1369 if (status & 0x8000) {
1370 DEB(DEB_TDR,printk(KERN_INFO "%s: link ok.\n", dev->name));
1372 if (status & 0x4000)
1373 printk(KERN_ERR "%s: Transceiver problem.\n", dev->name);
1374 if (status & 0x2000)
1375 printk(KERN_ERR "%s: Termination problem.\n", dev->name);
1376 if (status & 0x1000)
1377 printk(KERN_ERR "%s: Short circuit.\n", dev->name);
1379 DEB(DEB_TDR,printk(KERN_INFO "%s: Time %d.\n", dev->name, status & 0x07ff));
1384 case CmdMulticastList:
1385 /* Zap command so set_multicast_list() knows it is free */
1389 ptr->v_next = ptr->b_next = I596_NULL;
1390 lp->last_cmd = jiffies;
1394 while ((ptr != I596_NULL) && (ptr != lp->cmd_tail)) {
1395 ptr->command &= 0x1fff;
1399 if ((lp->cmd_head != I596_NULL))
1400 ack_cmd |= CUC_START;
1401 lp->scb.cmd = WSWAPcmd(virt_to_bus(&lp->cmd_head->status));
1403 if ((status & 0x1000) || (status & 0x4000)) {
1404 if ((status & 0x4000))
1405 DEB(DEB_INTS,printk(KERN_DEBUG "%s: i596 interrupt received a frame.\n", dev->name));
1407 /* Only RX_START if stopped - RGH 07-07-96 */
1408 if (status & 0x1000) {
1409 if (netif_running(dev)) {
1410 DEB(DEB_ERRORS,printk(KERN_ERR "%s: i596 interrupt receive unit inactive, status 0x%x\n", dev->name, status));
1411 ack_cmd |= RX_START;
1412 lp->stats.rx_errors++;
1413 lp->stats.rx_fifo_errors++;
1414 rebuild_rx_bufs(dev);
1418 wait_cmd(dev,lp,100,"i596 interrupt, timeout");
1419 lp->scb.command = ack_cmd;
1421 #ifdef ENABLE_MVME16x_NET
1422 if (MACH_IS_MVME16x) {
1423 /* Ack the interrupt */
1425 volatile unsigned char *pcc2 = (unsigned char *) 0xfff42000;
1430 #ifdef ENABLE_BVME6000_NET
1431 if (MACH_IS_BVME6000) {
1432 volatile unsigned char *ethirq = (unsigned char *) BVME_ETHIRQ_REG;
1438 #ifdef ENABLE_APRICOT
1439 (void) inb(ioaddr + 0x10);
1440 outb(4, ioaddr + 0xf);
1444 DEB(DEB_INTS,printk(KERN_DEBUG "%s: exiting interrupt.\n", dev->name));
1446 spin_unlock (&lp->lock);
1447 return IRQ_RETVAL(handled);
1450 static int i596_close(struct net_device *dev)
1452 struct i596_private *lp = dev->priv;
1453 unsigned long flags;
1455 netif_stop_queue(dev);
1457 DEB(DEB_INIT,printk(KERN_DEBUG "%s: Shutting down ethercard, status was %4.4x.\n",
1458 dev->name, lp->scb.status));
1460 spin_lock_irqsave(&lp->lock, flags);
1462 wait_cmd(dev,lp,100,"close1 timed out");
1463 lp->scb.command = CUC_ABORT | RX_ABORT;
1466 wait_cmd(dev,lp,100,"close2 timed out");
1468 spin_unlock_irqrestore(&lp->lock, flags);
1469 DEB(DEB_STRUCT,i596_display_data(dev));
1470 i596_cleanup_cmd(dev,lp);
1472 #ifdef ENABLE_MVME16x_NET
1473 if (MACH_IS_MVME16x) {
1474 volatile unsigned char *pcc2 = (unsigned char *) 0xfff42000;
1476 /* Disable all ints */
1479 pcc2[0x2b] = 0x40; /* Set snooping bits now! */
1482 #ifdef ENABLE_BVME6000_NET
1483 if (MACH_IS_BVME6000) {
1484 volatile unsigned char *ethirq = (unsigned char *) BVME_ETHIRQ_REG;
1490 free_irq(dev->irq, dev);
1491 remove_rx_bufs(dev);
1496 static struct net_device_stats *
1497 i596_get_stats(struct net_device *dev)
1499 struct i596_private *lp = dev->priv;
1505 * Set or clear the multicast filter for this adaptor.
1508 static void set_multicast_list(struct net_device *dev)
1510 struct i596_private *lp = dev->priv;
1511 int config = 0, cnt;
1513 DEB(DEB_MULTI,printk(KERN_DEBUG "%s: set multicast list, %d entries, promisc %s, allmulti %s\n",
1514 dev->name, dev->mc_count,
1515 dev->flags & IFF_PROMISC ? "ON" : "OFF",
1516 dev->flags & IFF_ALLMULTI ? "ON" : "OFF"));
1518 if (wait_cfg(dev, &lp->cf_cmd.cmd, 1000, "config change request timed out"))
1521 if ((dev->flags & IFF_PROMISC) && !(lp->cf_cmd.i596_config[8] & 0x01)) {
1522 lp->cf_cmd.i596_config[8] |= 0x01;
1525 if (!(dev->flags & IFF_PROMISC) && (lp->cf_cmd.i596_config[8] & 0x01)) {
1526 lp->cf_cmd.i596_config[8] &= ~0x01;
1529 if ((dev->flags & IFF_ALLMULTI) && (lp->cf_cmd.i596_config[11] & 0x20)) {
1530 lp->cf_cmd.i596_config[11] &= ~0x20;
1533 if (!(dev->flags & IFF_ALLMULTI) && !(lp->cf_cmd.i596_config[11] & 0x20)) {
1534 lp->cf_cmd.i596_config[11] |= 0x20;
1538 lp->cf_cmd.cmd.command = CmdConfigure;
1539 i596_add_cmd(dev, &lp->cf_cmd.cmd);
1542 cnt = dev->mc_count;
1543 if (cnt > MAX_MC_CNT)
1546 printk(KERN_ERR "%s: Only %d multicast addresses supported",
1550 if (dev->mc_count > 0) {
1551 struct dev_mc_list *dmi;
1555 if (wait_cfg(dev, &lp->mc_cmd.cmd, 1000, "multicast list change request timed out"))
1558 cmd->cmd.command = CmdMulticastList;
1559 cmd->mc_cnt = dev->mc_count * 6;
1561 for (dmi = dev->mc_list; cnt && dmi != NULL; dmi = dmi->next, cnt--, cp += 6) {
1562 memcpy(cp, dmi->dmi_addr, 6);
1564 DEB(DEB_MULTI,printk(KERN_INFO "%s: Adding address %02x:%02x:%02x:%02x:%02x:%02x\n",
1565 dev->name, cp[0],cp[1],cp[2],cp[3],cp[4],cp[5]));
1567 i596_add_cmd(dev, &cmd->cmd);
1572 static struct net_device *dev_82596;
1574 #ifdef ENABLE_APRICOT
1575 module_param(irq, int, 0);
1576 MODULE_PARM_DESC(irq, "Apricot IRQ number");
1579 static int debug = -1;
1580 module_param(debug, int, 0);
1581 MODULE_PARM_DESC(debug, "i82596 debug mask");
1583 int __init init_module(void)
1587 dev_82596 = i82596_probe(-1);
1588 if (IS_ERR(dev_82596))
1589 return PTR_ERR(dev_82596);
1593 void __exit cleanup_module(void)
1595 unregister_netdev(dev_82596);
1597 /* XXX This assumes default cache mode to be IOMAP_FULL_CACHING,
1598 * XXX which may be invalid (CONFIG_060_WRITETHROUGH)
1601 kernel_set_cachemode((void *)(dev_82596->mem_start), 4096,
1602 IOMAP_FULL_CACHING);
1604 free_page ((u32)(dev_82596->mem_start));
1605 #ifdef ENABLE_APRICOT
1606 /* If we don't do this, we can't re-insmod it later. */
1607 release_region(dev_82596->base_addr, I596_TOTAL_SIZE);
1609 free_netdev(dev_82596);
1616 * compile-command: "gcc -D__KERNEL__ -I/usr/src/linux/net/inet -Wall -Wstrict-prototypes -O6 -m486 -c 82596.c"