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>
61 static char version[] __initdata =
62 "82596.c $Revision: 1.5 $\n";
64 #define DRV_NAME "82596"
69 #define DEB_INIT 0x0001
70 #define DEB_PROBE 0x0002
71 #define DEB_SERIOUS 0x0004
72 #define DEB_ERRORS 0x0008
73 #define DEB_MULTI 0x0010
74 #define DEB_TDR 0x0020
75 #define DEB_OPEN 0x0040
76 #define DEB_RESET 0x0080
77 #define DEB_ADDCMD 0x0100
78 #define DEB_STATUS 0x0200
79 #define DEB_STARTTX 0x0400
80 #define DEB_RXADDR 0x0800
81 #define DEB_TXADDR 0x1000
82 #define DEB_RXFRAME 0x2000
83 #define DEB_INTS 0x4000
84 #define DEB_STRUCT 0x8000
85 #define DEB_ANY 0xffff
88 #define DEB(x,y) if (i596_debug & (x)) y
91 #if defined(CONFIG_MVME16x_NET) || defined(CONFIG_MVME16x_NET_MODULE)
92 #define ENABLE_MVME16x_NET
94 #if defined(CONFIG_BVME6000_NET) || defined(CONFIG_BVME6000_NET_MODULE)
95 #define ENABLE_BVME6000_NET
97 #if defined(CONFIG_APRICOT) || defined(CONFIG_APRICOT_MODULE)
98 #define ENABLE_APRICOT
101 #ifdef ENABLE_MVME16x_NET
102 #include <asm/mvme16xhw.h>
104 #ifdef ENABLE_BVME6000_NET
105 #include <asm/bvme6000hw.h>
109 * Define various macros for Channel Attention, word swapping etc., dependent
110 * on architecture. MVME and BVME are 680x0 based, otherwise it is Intel.
114 #define WSWAPrfd(x) ((struct i596_rfd *) (((u32)(x)<<16) | ((((u32)(x)))>>16)))
115 #define WSWAPrbd(x) ((struct i596_rbd *) (((u32)(x)<<16) | ((((u32)(x)))>>16)))
116 #define WSWAPiscp(x) ((struct i596_iscp *)(((u32)(x)<<16) | ((((u32)(x)))>>16)))
117 #define WSWAPscb(x) ((struct i596_scb *) (((u32)(x)<<16) | ((((u32)(x)))>>16)))
118 #define WSWAPcmd(x) ((struct i596_cmd *) (((u32)(x)<<16) | ((((u32)(x)))>>16)))
119 #define WSWAPtbd(x) ((struct i596_tbd *) (((u32)(x)<<16) | ((((u32)(x)))>>16)))
120 #define WSWAPchar(x) ((char *) (((u32)(x)<<16) | ((((u32)(x)))>>16)))
121 #define ISCP_BUSY 0x00010000
122 #define MACH_IS_APRICOT 0
124 #define WSWAPrfd(x) ((struct i596_rfd *)(x))
125 #define WSWAPrbd(x) ((struct i596_rbd *)(x))
126 #define WSWAPiscp(x) ((struct i596_iscp *)(x))
127 #define WSWAPscb(x) ((struct i596_scb *)(x))
128 #define WSWAPcmd(x) ((struct i596_cmd *)(x))
129 #define WSWAPtbd(x) ((struct i596_tbd *)(x))
130 #define WSWAPchar(x) ((char *)(x))
131 #define ISCP_BUSY 0x0001
132 #define MACH_IS_APRICOT 1
136 * The MPU_PORT command allows direct access to the 82596. With PORT access
137 * the following commands are available (p5-18). The 32-bit port command
138 * must be word-swapped with the most significant word written first.
139 * This only applies to VME boards.
141 #define PORT_RESET 0x00 /* reset 82596 */
142 #define PORT_SELFTEST 0x01 /* selftest */
143 #define PORT_ALTSCP 0x02 /* alternate SCB address */
144 #define PORT_ALTDUMP 0x03 /* Alternate DUMP address */
146 static int i596_debug = (DEB_SERIOUS|DEB_PROBE);
148 MODULE_AUTHOR("Richard Hirst");
149 MODULE_DESCRIPTION("i82596 driver");
150 MODULE_LICENSE("GPL");
152 module_param(i596_debug, int, 0);
153 MODULE_PARM_DESC(i596_debug, "i82596 debug mask");
156 /* Copy frames shorter than rx_copybreak, otherwise pass on up in
157 * a full sized sk_buff. Value of 100 stolen from tulip.c (!alpha).
159 static int rx_copybreak = 100;
161 #define PKT_BUF_SZ 1536
162 #define MAX_MC_CNT 64
164 #define I596_TOTAL_SIZE 17
166 #define I596_NULL ((void *)0xffffffff)
168 #define CMD_EOL 0x8000 /* The last command of the list, stop. */
169 #define CMD_SUSP 0x4000 /* Suspend after doing cmd. */
170 #define CMD_INTR 0x2000 /* Interrupt after doing cmd. */
172 #define CMD_FLEX 0x0008 /* Enable flexible memory model */
175 CmdNOp = 0, CmdSASetup = 1, CmdConfigure = 2, CmdMulticastList = 3,
176 CmdTx = 4, CmdTDR = 5, CmdDump = 6, CmdDiagnose = 7
179 #define STAT_C 0x8000 /* Set to 0 after execution */
180 #define STAT_B 0x4000 /* Command being executed */
181 #define STAT_OK 0x2000 /* Command executed ok */
182 #define STAT_A 0x1000 /* Command aborted */
184 #define CUC_START 0x0100
185 #define CUC_RESUME 0x0200
186 #define CUC_SUSPEND 0x0300
187 #define CUC_ABORT 0x0400
188 #define RX_START 0x0010
189 #define RX_RESUME 0x0020
190 #define RX_SUSPEND 0x0030
191 #define RX_ABORT 0x0040
197 unsigned short porthi;
198 unsigned short portlo;
203 #define SIZE_MASK 0x3fff
208 struct i596_tbd *next;
212 /* The command structure has two 'next' pointers; v_next is the address of
213 * the next command as seen by the CPU, b_next is the address of the next
214 * command as seen by the 82596. The b_next pointer, as used by the 82596
215 * always references the status field of the next command, rather than the
216 * v_next field, because the 82596 is unaware of v_next. It may seem more
217 * logical to put v_next at the end of the structure, but we cannot do that
218 * because the 82596 expects other fields to be there, depending on command
223 struct i596_cmd *v_next; /* Address from CPUs viewpoint */
224 unsigned short status;
225 unsigned short command;
226 struct i596_cmd *b_next; /* Address from i596 viewpoint */
231 struct i596_tbd *tbd;
234 struct sk_buff *skb; /* So we can free it after tx */
239 unsigned short status;
246 char mc_addrs[MAX_MC_CNT*6];
256 char i596_config[16];
262 struct i596_rfd *b_next; /* Address from i596 viewpoint */
263 struct i596_rbd *rbd;
264 unsigned short count;
266 struct i596_rfd *v_next; /* Address from CPUs viewpoint */
267 struct i596_rfd *v_prev;
271 unsigned short count;
272 unsigned short zero1;
273 struct i596_rbd *b_next;
274 unsigned char *b_data; /* Address from i596 viewpoint */
276 unsigned short zero2;
278 struct i596_rbd *v_next;
279 struct i596_rbd *b_addr; /* This rbd addr from i596 view */
280 unsigned char *v_data; /* Address from CPUs viewpoint */
283 #define TX_RING_SIZE 64
284 #define RX_RING_SIZE 16
287 unsigned short status;
288 unsigned short command;
289 struct i596_cmd *cmd;
290 struct i596_rfd *rfd;
291 unsigned long crc_err;
292 unsigned long align_err;
293 unsigned long resource_err;
294 unsigned long over_err;
295 unsigned long rcvdt_err;
296 unsigned long short_err;
298 unsigned short t_off;
303 struct i596_scb *scb;
307 unsigned long sysbus;
309 struct i596_iscp *iscp;
312 struct i596_private {
313 volatile struct i596_scp scp;
314 volatile struct i596_iscp iscp;
315 volatile struct i596_scb scb;
316 struct sa_cmd sa_cmd;
317 struct cf_cmd cf_cmd;
318 struct tdr_cmd tdr_cmd;
319 struct mc_cmd mc_cmd;
321 int last_restart __attribute__((aligned(4)));
322 struct i596_rfd *rfd_head;
323 struct i596_rbd *rbd_head;
324 struct i596_cmd *cmd_tail;
325 struct i596_cmd *cmd_head;
327 unsigned long last_cmd;
328 struct net_device_stats stats;
329 struct i596_rfd rfds[RX_RING_SIZE];
330 struct i596_rbd rbds[RX_RING_SIZE];
331 struct tx_cmd tx_cmds[TX_RING_SIZE];
332 struct i596_tbd tbds[TX_RING_SIZE];
337 static char init_setup[] =
339 0x8E, /* length, prefetch on */
340 0xC8, /* fifo to 8, monitor off */
342 0xc0, /* don't save bad frames */
344 0x80, /* don't save bad frames */
346 0x2E, /* No source address insertion, 8 byte preamble */
347 0x00, /* priority and backoff defaults */
348 0x60, /* interframe spacing */
349 0x00, /* slot time LSB */
350 0xf2, /* slot time and retries */
351 0x00, /* promiscuous mode */
352 0x00, /* collision detect */
353 0x40, /* minimum frame length */
356 0x7f /* *multi IA */ };
358 static int i596_open(struct net_device *dev);
359 static int i596_start_xmit(struct sk_buff *skb, struct net_device *dev);
360 static irqreturn_t i596_interrupt(int irq, void *dev_id);
361 static int i596_close(struct net_device *dev);
362 static struct net_device_stats *i596_get_stats(struct net_device *dev);
363 static void i596_add_cmd(struct net_device *dev, struct i596_cmd *cmd);
364 static void i596_tx_timeout (struct net_device *dev);
365 static void print_eth(unsigned char *buf, char *str);
366 static void set_multicast_list(struct net_device *dev);
368 static int rx_ring_size = RX_RING_SIZE;
369 static int ticks_limit = 25;
370 static int max_cmd_backlog = TX_RING_SIZE-1;
373 static inline void CA(struct net_device *dev)
375 #ifdef ENABLE_MVME16x_NET
376 if (MACH_IS_MVME16x) {
377 ((struct i596_reg *) dev->base_addr)->ca = 1;
380 #ifdef ENABLE_BVME6000_NET
381 if (MACH_IS_BVME6000) {
384 i = *(volatile u32 *) (dev->base_addr);
387 #ifdef ENABLE_APRICOT
388 if (MACH_IS_APRICOT) {
389 outw(0, (short) (dev->base_addr) + 4);
395 static inline void MPU_PORT(struct net_device *dev, int c, volatile void *x)
397 #ifdef ENABLE_MVME16x_NET
398 if (MACH_IS_MVME16x) {
399 struct i596_reg *p = (struct i596_reg *) (dev->base_addr);
400 p->porthi = ((c) | (u32) (x)) & 0xffff;
401 p->portlo = ((c) | (u32) (x)) >> 16;
404 #ifdef ENABLE_BVME6000_NET
405 if (MACH_IS_BVME6000) {
406 u32 v = (u32) (c) | (u32) (x);
407 v = ((u32) (v) << 16) | ((u32) (v) >> 16);
408 *(volatile u32 *) dev->base_addr = v;
410 *(volatile u32 *) dev->base_addr = v;
416 static inline int wait_istat(struct net_device *dev, struct i596_private *lp, int delcnt, char *str)
418 while (--delcnt && lp->iscp.stat)
421 printk(KERN_ERR "%s: %s, status %4.4x, cmd %4.4x.\n",
422 dev->name, str, lp->scb.status, lp->scb.command);
430 static inline int wait_cmd(struct net_device *dev, struct i596_private *lp, int delcnt, char *str)
432 while (--delcnt && lp->scb.command)
435 printk(KERN_ERR "%s: %s, status %4.4x, cmd %4.4x.\n",
436 dev->name, str, lp->scb.status, lp->scb.command);
444 static inline int wait_cfg(struct net_device *dev, struct i596_cmd *cmd, int delcnt, char *str)
446 volatile struct i596_cmd *c = cmd;
448 while (--delcnt && c->command)
451 printk(KERN_ERR "%s: %s.\n", dev->name, str);
459 static void i596_display_data(struct net_device *dev)
461 struct i596_private *lp = dev->priv;
462 struct i596_cmd *cmd;
463 struct i596_rfd *rfd;
464 struct i596_rbd *rbd;
466 printk(KERN_ERR "lp and scp at %p, .sysbus = %08lx, .iscp = %p\n",
467 &lp->scp, lp->scp.sysbus, lp->scp.iscp);
468 printk(KERN_ERR "iscp at %p, iscp.stat = %08lx, .scb = %p\n",
469 &lp->iscp, lp->iscp.stat, lp->iscp.scb);
470 printk(KERN_ERR "scb at %p, scb.status = %04x, .command = %04x,"
471 " .cmd = %p, .rfd = %p\n",
472 &lp->scb, lp->scb.status, lp->scb.command,
473 lp->scb.cmd, lp->scb.rfd);
474 printk(KERN_ERR " errors: crc %lx, align %lx, resource %lx,"
475 " over %lx, rcvdt %lx, short %lx\n",
476 lp->scb.crc_err, lp->scb.align_err, lp->scb.resource_err,
477 lp->scb.over_err, lp->scb.rcvdt_err, lp->scb.short_err);
479 while (cmd != I596_NULL) {
480 printk(KERN_ERR "cmd at %p, .status = %04x, .command = %04x, .b_next = %p\n",
481 cmd, cmd->status, cmd->command, cmd->b_next);
485 printk(KERN_ERR "rfd_head = %p\n", rfd);
487 printk(KERN_ERR " %p .stat %04x, .cmd %04x, b_next %p, rbd %p,"
489 rfd, rfd->stat, rfd->cmd, rfd->b_next, rfd->rbd,
492 } while (rfd != lp->rfd_head);
494 printk(KERN_ERR "rbd_head = %p\n", rbd);
496 printk(KERN_ERR " %p .count %04x, b_next %p, b_data %p, size %04x\n",
497 rbd, rbd->count, rbd->b_next, rbd->b_data, rbd->size);
499 } while (rbd != lp->rbd_head);
503 #if defined(ENABLE_MVME16x_NET) || defined(ENABLE_BVME6000_NET)
504 static irqreturn_t i596_error(int irq, void *dev_id)
506 struct net_device *dev = dev_id;
507 #ifdef ENABLE_MVME16x_NET
508 if (MACH_IS_MVME16x) {
509 volatile unsigned char *pcc2 = (unsigned char *) 0xfff42000;
515 #ifdef ENABLE_BVME6000_NET
516 if (MACH_IS_BVME6000) {
517 volatile unsigned char *ethirq = (unsigned char *) BVME_ETHIRQ_REG;
523 printk(KERN_ERR "%s: Error interrupt\n", dev->name);
524 i596_display_data(dev);
529 static inline void init_rx_bufs(struct net_device *dev)
531 struct i596_private *lp = dev->priv;
533 struct i596_rfd *rfd;
534 struct i596_rbd *rbd;
536 /* First build the Receive Buffer Descriptor List */
538 for (i = 0, rbd = lp->rbds; i < rx_ring_size; i++, rbd++) {
539 struct sk_buff *skb = dev_alloc_skb(PKT_BUF_SZ);
542 panic("82596: alloc_skb() failed");
545 rbd->b_next = WSWAPrbd(virt_to_bus(rbd+1));
546 rbd->b_addr = WSWAPrbd(virt_to_bus(rbd));
548 rbd->v_data = skb->data;
549 rbd->b_data = WSWAPchar(virt_to_bus(skb->data));
550 rbd->size = PKT_BUF_SZ;
552 cache_clear(virt_to_phys(skb->data), PKT_BUF_SZ);
555 lp->rbd_head = lp->rbds;
556 rbd = lp->rbds + rx_ring_size - 1;
557 rbd->v_next = lp->rbds;
558 rbd->b_next = WSWAPrbd(virt_to_bus(lp->rbds));
560 /* Now build the Receive Frame Descriptor List */
562 for (i = 0, rfd = lp->rfds; i < rx_ring_size; i++, rfd++) {
563 rfd->rbd = I596_NULL;
566 rfd->b_next = WSWAPrfd(virt_to_bus(rfd+1));
569 lp->rfd_head = lp->rfds;
570 lp->scb.rfd = WSWAPrfd(virt_to_bus(lp->rfds));
572 rfd->rbd = lp->rbd_head;
573 rfd->v_prev = lp->rfds + rx_ring_size - 1;
574 rfd = lp->rfds + rx_ring_size - 1;
575 rfd->v_next = lp->rfds;
576 rfd->b_next = WSWAPrfd(virt_to_bus(lp->rfds));
577 rfd->cmd = CMD_EOL|CMD_FLEX;
580 static inline void remove_rx_bufs(struct net_device *dev)
582 struct i596_private *lp = dev->priv;
583 struct i596_rbd *rbd;
586 for (i = 0, rbd = lp->rbds; i < rx_ring_size; i++, rbd++) {
587 if (rbd->skb == NULL)
589 dev_kfree_skb(rbd->skb);
594 static void rebuild_rx_bufs(struct net_device *dev)
596 struct i596_private *lp = dev->priv;
599 /* Ensure rx frame/buffer descriptors are tidy */
601 for (i = 0; i < rx_ring_size; i++) {
602 lp->rfds[i].rbd = I596_NULL;
603 lp->rfds[i].cmd = CMD_FLEX;
605 lp->rfds[rx_ring_size-1].cmd = CMD_EOL|CMD_FLEX;
606 lp->rfd_head = lp->rfds;
607 lp->scb.rfd = WSWAPrfd(virt_to_bus(lp->rfds));
608 lp->rbd_head = lp->rbds;
609 lp->rfds[0].rbd = WSWAPrbd(virt_to_bus(lp->rbds));
613 static int init_i596_mem(struct net_device *dev)
615 struct i596_private *lp = dev->priv;
616 #if !defined(ENABLE_MVME16x_NET) && !defined(ENABLE_BVME6000_NET) || defined(ENABLE_APRICOT)
617 short ioaddr = dev->base_addr;
621 MPU_PORT(dev, PORT_RESET, NULL);
623 udelay(100); /* Wait 100us - seems to help */
625 #if defined(ENABLE_MVME16x_NET) || defined(ENABLE_BVME6000_NET)
626 #ifdef ENABLE_MVME16x_NET
627 if (MACH_IS_MVME16x) {
628 volatile unsigned char *pcc2 = (unsigned char *) 0xfff42000;
630 /* Disable all ints for now */
633 /* Following disables snooping. Snooping is not required
634 * as we make appropriate use of non-cached pages for
635 * shared data, and cache_push/cache_clear.
640 #ifdef ENABLE_BVME6000_NET
641 if (MACH_IS_BVME6000) {
642 volatile unsigned char *ethirq = (unsigned char *) BVME_ETHIRQ_REG;
648 /* change the scp address */
650 MPU_PORT(dev, PORT_ALTSCP, (void *)virt_to_bus((void *)&lp->scp));
652 #elif defined(ENABLE_APRICOT)
655 u32 scp = virt_to_bus(&lp->scp);
657 /* change the scp address */
660 outb(4, ioaddr + 0xf);
661 outw(scp | 2, ioaddr);
662 outw(scp >> 16, ioaddr);
666 lp->last_cmd = jiffies;
668 #ifdef ENABLE_MVME16x_NET
670 lp->scp.sysbus = 0x00000054;
672 #ifdef ENABLE_BVME6000_NET
673 if (MACH_IS_BVME6000)
674 lp->scp.sysbus = 0x0000004c;
676 #ifdef ENABLE_APRICOT
678 lp->scp.sysbus = 0x00440000;
681 lp->scp.iscp = WSWAPiscp(virt_to_bus((void *)&lp->iscp));
682 lp->iscp.scb = WSWAPscb(virt_to_bus((void *)&lp->scb));
683 lp->iscp.stat = ISCP_BUSY;
686 lp->cmd_head = lp->scb.cmd = I596_NULL;
688 #ifdef ENABLE_BVME6000_NET
689 if (MACH_IS_BVME6000) {
690 lp->scb.t_on = 7 * 25;
691 lp->scb.t_off = 1 * 25;
695 DEB(DEB_INIT,printk(KERN_DEBUG "%s: starting i82596.\n", dev->name));
697 #if defined(ENABLE_APRICOT)
698 (void) inb(ioaddr + 0x10);
699 outb(4, ioaddr + 0xf);
703 if (wait_istat(dev,lp,1000,"initialization timed out"))
705 DEB(DEB_INIT,printk(KERN_DEBUG "%s: i82596 initialization successful\n", dev->name));
707 /* Ensure rx frame/buffer descriptors are tidy */
708 rebuild_rx_bufs(dev);
711 #ifdef ENABLE_MVME16x_NET
712 if (MACH_IS_MVME16x) {
713 volatile unsigned char *pcc2 = (unsigned char *) 0xfff42000;
715 /* Enable ints, etc. now */
716 pcc2[0x2a] = 0x55; /* Edge sensitive */
720 #ifdef ENABLE_BVME6000_NET
721 if (MACH_IS_BVME6000) {
722 volatile unsigned char *ethirq = (unsigned char *) BVME_ETHIRQ_REG;
729 DEB(DEB_INIT,printk(KERN_DEBUG "%s: queuing CmdConfigure\n", dev->name));
730 memcpy(lp->cf_cmd.i596_config, init_setup, 14);
731 lp->cf_cmd.cmd.command = CmdConfigure;
732 i596_add_cmd(dev, &lp->cf_cmd.cmd);
734 DEB(DEB_INIT,printk(KERN_DEBUG "%s: queuing CmdSASetup\n", dev->name));
735 memcpy(lp->sa_cmd.eth_addr, dev->dev_addr, 6);
736 lp->sa_cmd.cmd.command = CmdSASetup;
737 i596_add_cmd(dev, &lp->sa_cmd.cmd);
739 DEB(DEB_INIT,printk(KERN_DEBUG "%s: queuing CmdTDR\n", dev->name));
740 lp->tdr_cmd.cmd.command = CmdTDR;
741 i596_add_cmd(dev, &lp->tdr_cmd.cmd);
743 spin_lock_irqsave (&lp->lock, flags);
745 if (wait_cmd(dev,lp,1000,"timed out waiting to issue RX_START")) {
746 spin_unlock_irqrestore (&lp->lock, flags);
749 DEB(DEB_INIT,printk(KERN_DEBUG "%s: Issuing RX_START\n", dev->name));
750 lp->scb.command = RX_START;
753 spin_unlock_irqrestore (&lp->lock, flags);
755 if (wait_cmd(dev,lp,1000,"RX_START not processed"))
757 DEB(DEB_INIT,printk(KERN_DEBUG "%s: Receive unit started OK\n", dev->name));
761 printk(KERN_CRIT "%s: Failed to initialise 82596\n", dev->name);
762 MPU_PORT(dev, PORT_RESET, NULL);
766 static inline int i596_rx(struct net_device *dev)
768 struct i596_private *lp = dev->priv;
769 struct i596_rfd *rfd;
770 struct i596_rbd *rbd;
773 DEB(DEB_RXFRAME,printk(KERN_DEBUG "i596_rx(), rfd_head %p, rbd_head %p\n",
774 lp->rfd_head, lp->rbd_head));
776 rfd = lp->rfd_head; /* Ref next frame to check */
778 while ((rfd->stat) & STAT_C) { /* Loop while complete frames */
779 if (rfd->rbd == I596_NULL)
781 else if (rfd->rbd == lp->rbd_head->b_addr)
784 printk(KERN_CRIT "%s: rbd chain broken!\n", dev->name);
788 DEB(DEB_RXFRAME, printk(KERN_DEBUG " rfd %p, rfd.rbd %p, rfd.stat %04x\n",
789 rfd, rfd->rbd, rfd->stat));
791 if (rbd != I596_NULL && ((rfd->stat) & STAT_OK)) {
793 int pkt_len = rbd->count & 0x3fff;
794 struct sk_buff *skb = rbd->skb;
797 DEB(DEB_RXADDR,print_eth(rbd->v_data, "received"));
800 /* Check if the packet is long enough to just accept
801 * without copying to a properly sized skbuff.
804 if (pkt_len > rx_copybreak) {
805 struct sk_buff *newskb;
807 /* Get fresh skbuff to replace filled one. */
808 newskb = dev_alloc_skb(PKT_BUF_SZ);
809 if (newskb == NULL) {
810 skb = NULL; /* drop pkt */
813 /* Pass up the skb already on the Rx ring. */
814 skb_put(skb, pkt_len);
818 rbd->v_data = newskb->data;
819 rbd->b_data = WSWAPchar(virt_to_bus(newskb->data));
821 cache_clear(virt_to_phys(newskb->data), PKT_BUF_SZ);
825 skb = dev_alloc_skb(pkt_len + 2);
828 /* XXX tulip.c can defer packets here!! */
829 printk(KERN_WARNING "%s: i596_rx Memory squeeze, dropping packet.\n", dev->name);
830 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"