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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>
56
57#include <asm/io.h>
58#include <asm/dma.h>
59#include <asm/pgtable.h>
60#include <asm/cacheflush.h>
61
62static char version[] __initdata =
63 "82596.c $Revision: 1.5 $\n";
64
65#define DRV_NAME "82596"
66
67
68
69
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
87
88
89#define DEB(x,y) if (i596_debug & (x)) y
90
91
92#if defined(CONFIG_MVME16x_NET) || defined(CONFIG_MVME16x_NET_MODULE)
93#define ENABLE_MVME16x_NET
94#endif
95#if defined(CONFIG_BVME6000_NET) || defined(CONFIG_BVME6000_NET_MODULE)
96#define ENABLE_BVME6000_NET
97#endif
98#if defined(CONFIG_APRICOT) || defined(CONFIG_APRICOT_MODULE)
99#define ENABLE_APRICOT
100#endif
101
102#ifdef ENABLE_MVME16x_NET
103#include <asm/mvme16xhw.h>
104#endif
105#ifdef ENABLE_BVME6000_NET
106#include <asm/bvme6000hw.h>
107#endif
108
109
110
111
112
113
114#ifdef __mc68000__
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
124#else
125#define WSWAPrfd(x) ((struct i596_rfd *)((long)x))
126#define WSWAPrbd(x) ((struct i596_rbd *)((long)x))
127#define WSWAPiscp(x) ((struct i596_iscp *)((long)x))
128#define WSWAPscb(x) ((struct i596_scb *)((long)x))
129#define WSWAPcmd(x) ((struct i596_cmd *)((long)x))
130#define WSWAPtbd(x) ((struct i596_tbd *)((long)x))
131#define WSWAPchar(x) ((char *)((long)x))
132#define ISCP_BUSY 0x0001
133#define MACH_IS_APRICOT 1
134#endif
135
136
137
138
139
140
141
142#define PORT_RESET 0x00
143#define PORT_SELFTEST 0x01
144#define PORT_ALTSCP 0x02
145#define PORT_ALTDUMP 0x03
146
147static int i596_debug = (DEB_SERIOUS|DEB_PROBE);
148
149MODULE_AUTHOR("Richard Hirst");
150MODULE_DESCRIPTION("i82596 driver");
151MODULE_LICENSE("GPL");
152
153module_param(i596_debug, int, 0);
154MODULE_PARM_DESC(i596_debug, "i82596 debug mask");
155
156
157
158
159
160static int rx_copybreak = 100;
161
162#define PKT_BUF_SZ 1536
163#define MAX_MC_CNT 64
164
165#define I596_TOTAL_SIZE 17
166
167#define I596_NULL ((void *)0xffffffff)
168
169#define CMD_EOL 0x8000
170#define CMD_SUSP 0x4000
171#define CMD_INTR 0x2000
172
173#define CMD_FLEX 0x0008
174
175enum commands {
176 CmdNOp = 0, CmdSASetup = 1, CmdConfigure = 2, CmdMulticastList = 3,
177 CmdTx = 4, CmdTDR = 5, CmdDump = 6, CmdDiagnose = 7
178};
179
180#define STAT_C 0x8000
181#define STAT_B 0x4000
182#define STAT_OK 0x2000
183#define STAT_A 0x1000
184
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
193
194#define TX_TIMEOUT 5
195
196
197struct i596_reg {
198 unsigned short porthi;
199 unsigned short portlo;
200 unsigned long ca;
201};
202
203#define EOF 0x8000
204#define SIZE_MASK 0x3fff
205
206struct i596_tbd {
207 unsigned short size;
208 unsigned short pad;
209 struct i596_tbd *next;
210 char *data;
211};
212
213
214
215
216
217
218
219
220
221
222
223struct i596_cmd {
224 struct i596_cmd *v_next;
225 unsigned short status;
226 unsigned short command;
227 struct i596_cmd *b_next;
228};
229
230struct tx_cmd {
231 struct i596_cmd cmd;
232 struct i596_tbd *tbd;
233 unsigned short size;
234 unsigned short pad;
235 struct sk_buff *skb;
236};
237
238struct tdr_cmd {
239 struct i596_cmd cmd;
240 unsigned short status;
241 unsigned short pad;
242};
243
244struct mc_cmd {
245 struct i596_cmd cmd;
246 short mc_cnt;
247 char mc_addrs[MAX_MC_CNT*6];
248};
249
250struct sa_cmd {
251 struct i596_cmd cmd;
252 char eth_addr[8];
253};
254
255struct cf_cmd {
256 struct i596_cmd cmd;
257 char i596_config[16];
258};
259
260struct i596_rfd {
261 unsigned short stat;
262 unsigned short cmd;
263 struct i596_rfd *b_next;
264 struct i596_rbd *rbd;
265 unsigned short count;
266 unsigned short size;
267 struct i596_rfd *v_next;
268 struct i596_rfd *v_prev;
269};
270
271struct i596_rbd {
272 unsigned short count;
273 unsigned short zero1;
274 struct i596_rbd *b_next;
275 unsigned char *b_data;
276 unsigned short size;
277 unsigned short zero2;
278 struct sk_buff *skb;
279 struct i596_rbd *v_next;
280 struct i596_rbd *b_addr;
281 unsigned char *v_data;
282};
283
284#define TX_RING_SIZE 64
285#define RX_RING_SIZE 16
286
287struct i596_scb {
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;
298 unsigned short t_on;
299 unsigned short t_off;
300};
301
302struct i596_iscp {
303 unsigned long stat;
304 struct i596_scb *scb;
305};
306
307struct i596_scp {
308 unsigned long sysbus;
309 unsigned long pad;
310 struct i596_iscp *iscp;
311};
312
313struct 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;
321 unsigned long stat;
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;
327 int cmd_backlog;
328 unsigned long last_cmd;
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];
333 int next_tx_cmd;
334 spinlock_t lock;
335};
336
337static char init_setup[] =
338{
339 0x8E,
340 0xC8,
341#ifdef CONFIG_VME
342 0xc0,
343#else
344 0x80,
345#endif
346 0x2E,
347 0x00,
348 0x60,
349 0x00,
350 0xf2,
351 0x00,
352 0x00,
353 0x40,
354 0xff,
355 0x00,
356 0x7f };
357
358static int i596_open(struct net_device *dev);
359static netdev_tx_t i596_start_xmit(struct sk_buff *skb, struct net_device *dev);
360static irqreturn_t i596_interrupt(int irq, void *dev_id);
361static int i596_close(struct net_device *dev);
362static void i596_add_cmd(struct net_device *dev, struct i596_cmd *cmd);
363static void i596_tx_timeout (struct net_device *dev);
364static void print_eth(unsigned char *buf, char *str);
365static void set_multicast_list(struct net_device *dev);
366
367static int rx_ring_size = RX_RING_SIZE;
368static int ticks_limit = 25;
369static int max_cmd_backlog = TX_RING_SIZE-1;
370
371
372static inline void CA(struct net_device *dev)
373{
374#ifdef ENABLE_MVME16x_NET
375 if (MACH_IS_MVME16x) {
376 ((struct i596_reg *) dev->base_addr)->ca = 1;
377 }
378#endif
379#ifdef ENABLE_BVME6000_NET
380 if (MACH_IS_BVME6000) {
381 volatile u32 i;
382
383 i = *(volatile u32 *) (dev->base_addr);
384 }
385#endif
386#ifdef ENABLE_APRICOT
387 if (MACH_IS_APRICOT) {
388 outw(0, (short) (dev->base_addr) + 4);
389 }
390#endif
391}
392
393
394static inline void MPU_PORT(struct net_device *dev, int c, volatile void *x)
395{
396#ifdef ENABLE_MVME16x_NET
397 if (MACH_IS_MVME16x) {
398 struct i596_reg *p = (struct i596_reg *) (dev->base_addr);
399 p->porthi = ((c) | (u32) (x)) & 0xffff;
400 p->portlo = ((c) | (u32) (x)) >> 16;
401 }
402#endif
403#ifdef ENABLE_BVME6000_NET
404 if (MACH_IS_BVME6000) {
405 u32 v = (u32) (c) | (u32) (x);
406 v = ((u32) (v) << 16) | ((u32) (v) >> 16);
407 *(volatile u32 *) dev->base_addr = v;
408 udelay(1);
409 *(volatile u32 *) dev->base_addr = v;
410 }
411#endif
412}
413
414
415static inline int wait_istat(struct net_device *dev, struct i596_private *lp, int delcnt, char *str)
416{
417 while (--delcnt && lp->iscp.stat)
418 udelay(10);
419 if (!delcnt) {
420 printk(KERN_ERR "%s: %s, status %4.4x, cmd %4.4x.\n",
421 dev->name, str, lp->scb.status, lp->scb.command);
422 return -1;
423 }
424 else
425 return 0;
426}
427
428
429static inline int wait_cmd(struct net_device *dev, struct i596_private *lp, int delcnt, char *str)
430{
431 while (--delcnt && lp->scb.command)
432 udelay(10);
433 if (!delcnt) {
434 printk(KERN_ERR "%s: %s, status %4.4x, cmd %4.4x.\n",
435 dev->name, str, lp->scb.status, lp->scb.command);
436 return -1;
437 }
438 else
439 return 0;
440}
441
442
443static inline int wait_cfg(struct net_device *dev, struct i596_cmd *cmd, int delcnt, char *str)
444{
445 volatile struct i596_cmd *c = cmd;
446
447 while (--delcnt && c->command)
448 udelay(10);
449 if (!delcnt) {
450 printk(KERN_ERR "%s: %s.\n", dev->name, str);
451 return -1;
452 }
453 else
454 return 0;
455}
456
457
458static void i596_display_data(struct net_device *dev)
459{
460 struct i596_private *lp = dev->ml_priv;
461 struct i596_cmd *cmd;
462 struct i596_rfd *rfd;
463 struct i596_rbd *rbd;
464
465 printk(KERN_ERR "lp and scp at %p, .sysbus = %08lx, .iscp = %p\n",
466 &lp->scp, lp->scp.sysbus, lp->scp.iscp);
467 printk(KERN_ERR "iscp at %p, iscp.stat = %08lx, .scb = %p\n",
468 &lp->iscp, lp->iscp.stat, lp->iscp.scb);
469 printk(KERN_ERR "scb at %p, scb.status = %04x, .command = %04x,"
470 " .cmd = %p, .rfd = %p\n",
471 &lp->scb, lp->scb.status, lp->scb.command,
472 lp->scb.cmd, lp->scb.rfd);
473 printk(KERN_ERR " errors: crc %lx, align %lx, resource %lx,"
474 " over %lx, rcvdt %lx, short %lx\n",
475 lp->scb.crc_err, lp->scb.align_err, lp->scb.resource_err,
476 lp->scb.over_err, lp->scb.rcvdt_err, lp->scb.short_err);
477 cmd = lp->cmd_head;
478 while (cmd != I596_NULL) {
479 printk(KERN_ERR "cmd at %p, .status = %04x, .command = %04x, .b_next = %p\n",
480 cmd, cmd->status, cmd->command, cmd->b_next);
481 cmd = cmd->v_next;
482 }
483 rfd = lp->rfd_head;
484 printk(KERN_ERR "rfd_head = %p\n", rfd);
485 do {
486 printk(KERN_ERR " %p .stat %04x, .cmd %04x, b_next %p, rbd %p,"
487 " count %04x\n",
488 rfd, rfd->stat, rfd->cmd, rfd->b_next, rfd->rbd,
489 rfd->count);
490 rfd = rfd->v_next;
491 } while (rfd != lp->rfd_head);
492 rbd = lp->rbd_head;
493 printk(KERN_ERR "rbd_head = %p\n", rbd);
494 do {
495 printk(KERN_ERR " %p .count %04x, b_next %p, b_data %p, size %04x\n",
496 rbd, rbd->count, rbd->b_next, rbd->b_data, rbd->size);
497 rbd = rbd->v_next;
498 } while (rbd != lp->rbd_head);
499}
500
501
502#if defined(ENABLE_MVME16x_NET) || defined(ENABLE_BVME6000_NET)
503static irqreturn_t i596_error(int irq, void *dev_id)
504{
505 struct net_device *dev = dev_id;
506#ifdef ENABLE_MVME16x_NET
507 if (MACH_IS_MVME16x) {
508 volatile unsigned char *pcc2 = (unsigned char *) 0xfff42000;
509
510 pcc2[0x28] = 1;
511 pcc2[0x2b] = 0x1d;
512 }
513#endif
514#ifdef ENABLE_BVME6000_NET
515 if (MACH_IS_BVME6000) {
516 volatile unsigned char *ethirq = (unsigned char *) BVME_ETHIRQ_REG;
517
518 *ethirq = 1;
519 *ethirq = 3;
520 }
521#endif
522 printk(KERN_ERR "%s: Error interrupt\n", dev->name);
523 i596_display_data(dev);
524 return IRQ_HANDLED;
525}
526#endif
527
528static inline void init_rx_bufs(struct net_device *dev)
529{
530 struct i596_private *lp = dev->ml_priv;
531 int i;
532 struct i596_rfd *rfd;
533 struct i596_rbd *rbd;
534
535
536
537 for (i = 0, rbd = lp->rbds; i < rx_ring_size; i++, rbd++) {
538 struct sk_buff *skb = dev_alloc_skb(PKT_BUF_SZ);
539
540 if (skb == NULL)
541 panic("82596: alloc_skb() failed");
542 skb->dev = dev;
543 rbd->v_next = rbd+1;
544 rbd->b_next = WSWAPrbd(virt_to_bus(rbd+1));
545 rbd->b_addr = WSWAPrbd(virt_to_bus(rbd));
546 rbd->skb = skb;
547 rbd->v_data = skb->data;
548 rbd->b_data = WSWAPchar(virt_to_bus(skb->data));
549 rbd->size = PKT_BUF_SZ;
550#ifdef __mc68000__
551 cache_clear(virt_to_phys(skb->data), PKT_BUF_SZ);
552#endif
553 }
554 lp->rbd_head = lp->rbds;
555 rbd = lp->rbds + rx_ring_size - 1;
556 rbd->v_next = lp->rbds;
557 rbd->b_next = WSWAPrbd(virt_to_bus(lp->rbds));
558
559
560
561 for (i = 0, rfd = lp->rfds; i < rx_ring_size; i++, rfd++) {
562 rfd->rbd = I596_NULL;
563 rfd->v_next = rfd+1;
564 rfd->v_prev = rfd-1;
565 rfd->b_next = WSWAPrfd(virt_to_bus(rfd+1));
566 rfd->cmd = CMD_FLEX;
567 }
568 lp->rfd_head = lp->rfds;
569 lp->scb.rfd = WSWAPrfd(virt_to_bus(lp->rfds));
570 rfd = lp->rfds;
571 rfd->rbd = lp->rbd_head;
572 rfd->v_prev = lp->rfds + rx_ring_size - 1;
573 rfd = lp->rfds + rx_ring_size - 1;
574 rfd->v_next = lp->rfds;
575 rfd->b_next = WSWAPrfd(virt_to_bus(lp->rfds));
576 rfd->cmd = CMD_EOL|CMD_FLEX;
577}
578
579static inline void remove_rx_bufs(struct net_device *dev)
580{
581 struct i596_private *lp = dev->ml_priv;
582 struct i596_rbd *rbd;
583 int i;
584
585 for (i = 0, rbd = lp->rbds; i < rx_ring_size; i++, rbd++) {
586 if (rbd->skb == NULL)
587 break;
588 dev_kfree_skb(rbd->skb);
589 }
590}
591
592
593static void rebuild_rx_bufs(struct net_device *dev)
594{
595 struct i596_private *lp = dev->ml_priv;
596 int i;
597
598
599
600 for (i = 0; i < rx_ring_size; i++) {
601 lp->rfds[i].rbd = I596_NULL;
602 lp->rfds[i].cmd = CMD_FLEX;
603 }
604 lp->rfds[rx_ring_size-1].cmd = CMD_EOL|CMD_FLEX;
605 lp->rfd_head = lp->rfds;
606 lp->scb.rfd = WSWAPrfd(virt_to_bus(lp->rfds));
607 lp->rbd_head = lp->rbds;
608 lp->rfds[0].rbd = WSWAPrbd(virt_to_bus(lp->rbds));
609}
610
611
612static int init_i596_mem(struct net_device *dev)
613{
614 struct i596_private *lp = dev->ml_priv;
615#if !defined(ENABLE_MVME16x_NET) && !defined(ENABLE_BVME6000_NET) || defined(ENABLE_APRICOT)
616 short ioaddr = dev->base_addr;
617#endif
618 unsigned long flags;
619
620 MPU_PORT(dev, PORT_RESET, NULL);
621
622 udelay(100);
623
624#if defined(ENABLE_MVME16x_NET) || defined(ENABLE_BVME6000_NET)
625#ifdef ENABLE_MVME16x_NET
626 if (MACH_IS_MVME16x) {
627 volatile unsigned char *pcc2 = (unsigned char *) 0xfff42000;
628
629
630 pcc2[0x28] = 1;
631 pcc2[0x2a] = 0x48;
632
633
634
635
636 pcc2[0x2b] = 0x08;
637 }
638#endif
639#ifdef ENABLE_BVME6000_NET
640 if (MACH_IS_BVME6000) {
641 volatile unsigned char *ethirq = (unsigned char *) BVME_ETHIRQ_REG;
642
643 *ethirq = 1;
644 }
645#endif
646
647
648
649 MPU_PORT(dev, PORT_ALTSCP, (void *)virt_to_bus((void *)&lp->scp));
650
651#elif defined(ENABLE_APRICOT)
652
653 {
654 u32 scp = virt_to_bus(&lp->scp);
655
656
657 outw(0, ioaddr);
658 outw(0, ioaddr);
659 outb(4, ioaddr + 0xf);
660 outw(scp | 2, ioaddr);
661 outw(scp >> 16, ioaddr);
662 }
663#endif
664
665 lp->last_cmd = jiffies;
666
667#ifdef ENABLE_MVME16x_NET
668 if (MACH_IS_MVME16x)
669 lp->scp.sysbus = 0x00000054;
670#endif
671#ifdef ENABLE_BVME6000_NET
672 if (MACH_IS_BVME6000)
673 lp->scp.sysbus = 0x0000004c;
674#endif
675#ifdef ENABLE_APRICOT
676 if (MACH_IS_APRICOT)
677 lp->scp.sysbus = 0x00440000;
678#endif
679
680 lp->scp.iscp = WSWAPiscp(virt_to_bus((void *)&lp->iscp));
681 lp->iscp.scb = WSWAPscb(virt_to_bus((void *)&lp->scb));
682 lp->iscp.stat = ISCP_BUSY;
683 lp->cmd_backlog = 0;
684
685 lp->cmd_head = lp->scb.cmd = I596_NULL;
686
687#ifdef ENABLE_BVME6000_NET
688 if (MACH_IS_BVME6000) {
689 lp->scb.t_on = 7 * 25;
690 lp->scb.t_off = 1 * 25;
691 }
692#endif
693
694 DEB(DEB_INIT,printk(KERN_DEBUG "%s: starting i82596.\n", dev->name));
695
696#if defined(ENABLE_APRICOT)
697 (void) inb(ioaddr + 0x10);
698 outb(4, ioaddr + 0xf);
699#endif
700 CA(dev);
701
702 if (wait_istat(dev,lp,1000,"initialization timed out"))
703 goto failed;
704 DEB(DEB_INIT,printk(KERN_DEBUG "%s: i82596 initialization successful\n", dev->name));
705
706
707 rebuild_rx_bufs(dev);
708 lp->scb.command = 0;
709
710#ifdef ENABLE_MVME16x_NET
711 if (MACH_IS_MVME16x) {
712 volatile unsigned char *pcc2 = (unsigned char *) 0xfff42000;
713
714
715 pcc2[0x2a] = 0x55;
716 pcc2[0x2b] = 0x15;
717 }
718#endif
719#ifdef ENABLE_BVME6000_NET
720 if (MACH_IS_BVME6000) {
721 volatile unsigned char *ethirq = (unsigned char *) BVME_ETHIRQ_REG;
722
723 *ethirq = 3;
724 }
725#endif
726
727
728 DEB(DEB_INIT,printk(KERN_DEBUG "%s: queuing CmdConfigure\n", dev->name));
729 memcpy(lp->cf_cmd.i596_config, init_setup, 14);
730 lp->cf_cmd.cmd.command = CmdConfigure;
731 i596_add_cmd(dev, &lp->cf_cmd.cmd);
732
733 DEB(DEB_INIT,printk(KERN_DEBUG "%s: queuing CmdSASetup\n", dev->name));
734 memcpy(lp->sa_cmd.eth_addr, dev->dev_addr, 6);
735 lp->sa_cmd.cmd.command = CmdSASetup;
736 i596_add_cmd(dev, &lp->sa_cmd.cmd);
737
738 DEB(DEB_INIT,printk(KERN_DEBUG "%s: queuing CmdTDR\n", dev->name));
739 lp->tdr_cmd.cmd.command = CmdTDR;
740 i596_add_cmd(dev, &lp->tdr_cmd.cmd);
741
742 spin_lock_irqsave (&lp->lock, flags);
743
744 if (wait_cmd(dev,lp,1000,"timed out waiting to issue RX_START")) {
745 spin_unlock_irqrestore (&lp->lock, flags);
746 goto failed;
747 }
748 DEB(DEB_INIT,printk(KERN_DEBUG "%s: Issuing RX_START\n", dev->name));
749 lp->scb.command = RX_START;
750 CA(dev);
751
752 spin_unlock_irqrestore (&lp->lock, flags);
753
754 if (wait_cmd(dev,lp,1000,"RX_START not processed"))
755 goto failed;
756 DEB(DEB_INIT,printk(KERN_DEBUG "%s: Receive unit started OK\n", dev->name));
757 return 0;
758
759failed:
760 printk(KERN_CRIT "%s: Failed to initialise 82596\n", dev->name);
761 MPU_PORT(dev, PORT_RESET, NULL);
762 return -1;
763}
764
765static inline int i596_rx(struct net_device *dev)
766{
767 struct i596_private *lp = dev->ml_priv;
768 struct i596_rfd *rfd;
769 struct i596_rbd *rbd;
770 int frames = 0;
771
772 DEB(DEB_RXFRAME,printk(KERN_DEBUG "i596_rx(), rfd_head %p, rbd_head %p\n",
773 lp->rfd_head, lp->rbd_head));
774
775 rfd = lp->rfd_head;
776
777 while ((rfd->stat) & STAT_C) {
778 if (rfd->rbd == I596_NULL)
779 rbd = I596_NULL;
780 else if (rfd->rbd == lp->rbd_head->b_addr)
781 rbd = lp->rbd_head;
782 else {
783 printk(KERN_CRIT "%s: rbd chain broken!\n", dev->name);
784
785 rbd = I596_NULL;
786 }
787 DEB(DEB_RXFRAME, printk(KERN_DEBUG " rfd %p, rfd.rbd %p, rfd.stat %04x\n",
788 rfd, rfd->rbd, rfd->stat));
789
790 if (rbd != I596_NULL && ((rfd->stat) & STAT_OK)) {
791
792 int pkt_len = rbd->count & 0x3fff;
793 struct sk_buff *skb = rbd->skb;
794 int rx_in_place = 0;
795
796 DEB(DEB_RXADDR,print_eth(rbd->v_data, "received"));
797 frames++;
798
799
800
801
802
803 if (pkt_len > rx_copybreak) {
804 struct sk_buff *newskb;
805
806
807 newskb = dev_alloc_skb(PKT_BUF_SZ);
808 if (newskb == NULL) {
809 skb = NULL;
810 goto memory_squeeze;
811 }
812
813 skb_put(skb, pkt_len);
814 rx_in_place = 1;
815 rbd->skb = newskb;
816 newskb->dev = dev;
817 rbd->v_data = newskb->data;
818 rbd->b_data = WSWAPchar(virt_to_bus(newskb->data));
819#ifdef __mc68000__
820 cache_clear(virt_to_phys(newskb->data), PKT_BUF_SZ);
821#endif
822 }
823 else
824 skb = dev_alloc_skb(pkt_len + 2);
825memory_squeeze:
826 if (skb == NULL) {
827
828 printk(KERN_WARNING "%s: i596_rx Memory squeeze, dropping packet.\n", dev->name);
829 dev->stats.rx_dropped++;
830 }
831 else {
832 if (!rx_in_place) {
833
834 skb_reserve(skb, 2);
835 memcpy(skb_put(skb,pkt_len), rbd->v_data, pkt_len);
836 }
837 skb->protocol=eth_type_trans(skb,dev);
838 skb->len = pkt_len;
839#ifdef __mc68000__
840 cache_clear(virt_to_phys(rbd->skb->data),
841 pkt_len);
842#endif
843 netif_rx(skb);
844 dev->stats.rx_packets++;
845 dev->stats.rx_bytes+=pkt_len;
846 }
847 }
848 else {
849 DEB(DEB_ERRORS, printk(KERN_DEBUG "%s: Error, rfd.stat = 0x%04x\n",
850 dev->name, rfd->stat));
851 dev->stats.rx_errors++;
852 if ((rfd->stat) & 0x0001)
853 dev->stats.collisions++;
854 if ((rfd->stat) & 0x0080)
855 dev->stats.rx_length_errors++;
856 if ((rfd->stat) & 0x0100)
857 dev->stats.rx_over_errors++;
858 if ((rfd->stat) & 0x0200)
859 dev->stats.rx_fifo_errors++;
860 if ((rfd->stat) & 0x0400)
861 dev->stats.rx_frame_errors++;
862 if ((rfd->stat) & 0x0800)
863 dev->stats.rx_crc_errors++;
864 if ((rfd->stat) & 0x1000)
865 dev->stats.rx_length_errors++;
866 }
867
868
869
870 if (rbd != I596_NULL && (rbd->count & 0x4000)) {
871 rbd->count = 0;
872 lp->rbd_head = rbd->v_next;
873 }
874
875
876
877 rfd->rbd = I596_NULL;
878 rfd->stat = 0;
879 rfd->cmd = CMD_EOL|CMD_FLEX;
880 rfd->count = 0;
881
882
883
884 rfd->v_prev->cmd = CMD_FLEX;
885
886
887
888 lp->scb.rfd = rfd->b_next;
889 lp->rfd_head = rfd->v_next;
890 rfd = lp->rfd_head;
891 }
892
893 DEB(DEB_RXFRAME,printk(KERN_DEBUG "frames %d\n", frames));
894
895 return 0;
896}
897
898
899static void i596_cleanup_cmd(struct net_device *dev, struct i596_private *lp)
900{
901 struct i596_cmd *ptr;
902
903 while (lp->cmd_head != I596_NULL) {
904 ptr = lp->cmd_head;
905 lp->cmd_head = ptr->v_next;
906 lp->cmd_backlog--;
907
908 switch ((ptr->command) & 0x7) {
909 case CmdTx:
910 {
911 struct tx_cmd *tx_cmd = (struct tx_cmd *) ptr;
912 struct sk_buff *skb = tx_cmd->skb;
913
914 dev_kfree_skb(skb);
915
916 dev->stats.tx_errors++;
917 dev->stats.tx_aborted_errors++;
918
919 ptr->v_next = ptr->b_next = I596_NULL;
920 tx_cmd->cmd.command = 0;
921 break;
922 }
923 default:
924 ptr->v_next = ptr->b_next = I596_NULL;
925 }
926 }
927
928 wait_cmd(dev,lp,100,"i596_cleanup_cmd timed out");
929 lp->scb.cmd = I596_NULL;
930}
931
932static void i596_reset(struct net_device *dev, struct i596_private *lp,
933 int ioaddr)
934{
935 unsigned long flags;
936
937 DEB(DEB_RESET,printk(KERN_DEBUG "i596_reset\n"));
938
939 spin_lock_irqsave (&lp->lock, flags);
940
941 wait_cmd(dev,lp,100,"i596_reset timed out");
942
943 netif_stop_queue(dev);
944
945 lp->scb.command = CUC_ABORT | RX_ABORT;
946 CA(dev);
947
948
949 wait_cmd(dev,lp,1000,"i596_reset 2 timed out");
950 spin_unlock_irqrestore (&lp->lock, flags);
951
952 i596_cleanup_cmd(dev,lp);
953 i596_rx(dev);
954
955 netif_start_queue(dev);
956 init_i596_mem(dev);
957}
958
959static void i596_add_cmd(struct net_device *dev, struct i596_cmd *cmd)
960{
961 struct i596_private *lp = dev->ml_priv;
962 int ioaddr = dev->base_addr;
963 unsigned long flags;
964
965 DEB(DEB_ADDCMD,printk(KERN_DEBUG "i596_add_cmd\n"));
966
967 cmd->status = 0;
968 cmd->command |= (CMD_EOL | CMD_INTR);
969 cmd->v_next = cmd->b_next = I596_NULL;
970
971 spin_lock_irqsave (&lp->lock, flags);
972
973 if (lp->cmd_head != I596_NULL) {
974 lp->cmd_tail->v_next = cmd;
975 lp->cmd_tail->b_next = WSWAPcmd(virt_to_bus(&cmd->status));
976 } else {
977 lp->cmd_head = cmd;
978 wait_cmd(dev,lp,100,"i596_add_cmd timed out");
979 lp->scb.cmd = WSWAPcmd(virt_to_bus(&cmd->status));
980 lp->scb.command = CUC_START;
981 CA(dev);
982 }
983 lp->cmd_tail = cmd;
984 lp->cmd_backlog++;
985
986 spin_unlock_irqrestore (&lp->lock, flags);
987
988 if (lp->cmd_backlog > max_cmd_backlog) {
989 unsigned long tickssofar = jiffies - lp->last_cmd;
990
991 if (tickssofar < ticks_limit)
992 return;
993
994 printk(KERN_NOTICE "%s: command unit timed out, status resetting.\n", dev->name);
995
996 i596_reset(dev, lp, ioaddr);
997 }
998}
999
1000static int i596_open(struct net_device *dev)
1001{
1002 int res = 0;
1003
1004 DEB(DEB_OPEN,printk(KERN_DEBUG "%s: i596_open() irq %d.\n", dev->name, dev->irq));
1005
1006 if (request_irq(dev->irq, i596_interrupt, 0, "i82596", dev)) {
1007 printk(KERN_ERR "%s: IRQ %d not free\n", dev->name, dev->irq);
1008 return -EAGAIN;
1009 }
1010#ifdef ENABLE_MVME16x_NET
1011 if (MACH_IS_MVME16x) {
1012 if (request_irq(0x56, i596_error, 0, "i82596_error", dev))
1013 return -EAGAIN;
1014 }
1015#endif
1016 init_rx_bufs(dev);
1017
1018 netif_start_queue(dev);
1019
1020
1021 if (init_i596_mem(dev)) {
1022 res = -EAGAIN;
1023 free_irq(dev->irq, dev);
1024 }
1025
1026 return res;
1027}
1028
1029static void i596_tx_timeout (struct net_device *dev)
1030{
1031 struct i596_private *lp = dev->ml_priv;
1032 int ioaddr = dev->base_addr;
1033
1034
1035 DEB(DEB_ERRORS,printk(KERN_ERR "%s: transmit timed out, status resetting.\n",
1036 dev->name));
1037
1038 dev->stats.tx_errors++;
1039
1040
1041 if (lp->last_restart == dev->stats.tx_packets) {
1042 DEB(DEB_ERRORS,printk(KERN_ERR "Resetting board.\n"));
1043
1044 i596_reset (dev, lp, ioaddr);
1045 } else {
1046
1047 DEB(DEB_ERRORS,printk(KERN_ERR "Kicking board.\n"));
1048 lp->scb.command = CUC_START | RX_START;
1049 CA (dev);
1050 lp->last_restart = dev->stats.tx_packets;
1051 }
1052
1053 dev->trans_start = jiffies;
1054 netif_wake_queue (dev);
1055}
1056
1057static netdev_tx_t i596_start_xmit(struct sk_buff *skb, struct net_device *dev)
1058{
1059 struct i596_private *lp = dev->ml_priv;
1060 struct tx_cmd *tx_cmd;
1061 struct i596_tbd *tbd;
1062 short length = skb->len;
1063 dev->trans_start = jiffies;
1064
1065 DEB(DEB_STARTTX,printk(KERN_DEBUG "%s: i596_start_xmit(%x,%p) called\n",
1066 dev->name, skb->len, skb->data));
1067
1068 if (skb->len < ETH_ZLEN) {
1069 if (skb_padto(skb, ETH_ZLEN))
1070 return NETDEV_TX_OK;
1071 length = ETH_ZLEN;
1072 }
1073 netif_stop_queue(dev);
1074
1075 tx_cmd = lp->tx_cmds + lp->next_tx_cmd;
1076 tbd = lp->tbds + lp->next_tx_cmd;
1077
1078 if (tx_cmd->cmd.command) {
1079 printk(KERN_NOTICE "%s: xmit ring full, dropping packet.\n",
1080 dev->name);
1081 dev->stats.tx_dropped++;
1082
1083 dev_kfree_skb(skb);
1084 } else {
1085 if (++lp->next_tx_cmd == TX_RING_SIZE)
1086 lp->next_tx_cmd = 0;
1087 tx_cmd->tbd = WSWAPtbd(virt_to_bus(tbd));
1088 tbd->next = I596_NULL;
1089
1090 tx_cmd->cmd.command = CMD_FLEX | CmdTx;
1091 tx_cmd->skb = skb;
1092
1093 tx_cmd->pad = 0;
1094 tx_cmd->size = 0;
1095 tbd->pad = 0;
1096 tbd->size = EOF | length;
1097
1098 tbd->data = WSWAPchar(virt_to_bus(skb->data));
1099
1100#ifdef __mc68000__
1101 cache_push(virt_to_phys(skb->data), length);
1102#endif
1103 DEB(DEB_TXADDR,print_eth(skb->data, "tx-queued"));
1104 i596_add_cmd(dev, &tx_cmd->cmd);
1105
1106 dev->stats.tx_packets++;
1107 dev->stats.tx_bytes += length;
1108 }
1109
1110 netif_start_queue(dev);
1111
1112 return NETDEV_TX_OK;
1113}
1114
1115static void print_eth(unsigned char *add, char *str)
1116{
1117 printk(KERN_DEBUG "i596 0x%p, %pM --> %pM %02X%02X, %s\n",
1118 add, add + 6, add, add[12], add[13], str);
1119}
1120
1121static int io = 0x300;
1122static int irq = 10;
1123
1124static const struct net_device_ops i596_netdev_ops = {
1125 .ndo_open = i596_open,
1126 .ndo_stop = i596_close,
1127 .ndo_start_xmit = i596_start_xmit,
1128 .ndo_set_multicast_list = set_multicast_list,
1129 .ndo_tx_timeout = i596_tx_timeout,
1130 .ndo_change_mtu = eth_change_mtu,
1131 .ndo_set_mac_address = eth_mac_addr,
1132 .ndo_validate_addr = eth_validate_addr,
1133};
1134
1135struct net_device * __init i82596_probe(int unit)
1136{
1137 struct net_device *dev;
1138 int i;
1139 struct i596_private *lp;
1140 char eth_addr[8];
1141 static int probed;
1142 int err;
1143
1144 if (probed)
1145 return ERR_PTR(-ENODEV);
1146 probed++;
1147
1148 dev = alloc_etherdev(0);
1149 if (!dev)
1150 return ERR_PTR(-ENOMEM);
1151
1152 if (unit >= 0) {
1153 sprintf(dev->name, "eth%d", unit);
1154 netdev_boot_setup_check(dev);
1155 } else {
1156 dev->base_addr = io;
1157 dev->irq = irq;
1158 }
1159
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");
1164 err = -ENODEV;
1165 goto out;
1166 }
1167 memcpy(eth_addr, (void *) 0xfffc1f2c, 6);
1168 dev->base_addr = MVME_I596_BASE;
1169 dev->irq = (unsigned) MVME16x_IRQ_I596;
1170 goto found;
1171 }
1172#endif
1173#ifdef ENABLE_BVME6000_NET
1174 if (MACH_IS_BVME6000) {
1175 volatile unsigned char *rtc = (unsigned char *) BVME_RTC_BASE;
1176 unsigned char msr = rtc[3];
1177 int i;
1178
1179 rtc[3] |= 0x80;
1180 for (i = 0; i < 6; i++)
1181 eth_addr[i] = rtc[i * 4 + 7];
1182 rtc[3] = msr;
1183 dev->base_addr = BVME_I596_BASE;
1184 dev->irq = (unsigned) BVME_IRQ_I596;
1185 goto found;
1186 }
1187#endif
1188#ifdef ENABLE_APRICOT
1189 {
1190 int checksum = 0;
1191 int ioaddr = 0x300;
1192
1193
1194
1195
1196 if (!request_region(ioaddr, I596_TOTAL_SIZE, DRV_NAME)) {
1197 printk(KERN_ERR "82596: IO address 0x%04x in use\n", ioaddr);
1198 err = -EBUSY;
1199 goto out;
1200 }
1201
1202 dev->base_addr = ioaddr;
1203
1204 for (i = 0; i < 8; i++) {
1205 eth_addr[i] = inb(ioaddr + 8 + i);
1206 checksum += eth_addr[i];
1207 }
1208
1209
1210
1211
1212
1213
1214
1215 if ((checksum % 0x100) ||
1216 (memcmp(eth_addr, "\x00\x00\x49", 3) != 0)) {
1217 err = -ENODEV;
1218 goto out1;
1219 }
1220
1221 dev->irq = 10;
1222 goto found;
1223 }
1224#endif
1225 err = -ENODEV;
1226 goto out;
1227
1228found:
1229 dev->mem_start = (int)__get_free_pages(GFP_ATOMIC, 0);
1230 if (!dev->mem_start) {
1231 err = -ENOMEM;
1232 goto out1;
1233 }
1234
1235 DEB(DEB_PROBE,printk(KERN_INFO "%s: 82596 at %#3lx,", dev->name, dev->base_addr));
1236
1237 for (i = 0; i < 6; i++)
1238 DEB(DEB_PROBE,printk(" %2.2X", dev->dev_addr[i] = eth_addr[i]));
1239
1240 DEB(DEB_PROBE,printk(" IRQ %d.\n", dev->irq));
1241
1242 DEB(DEB_PROBE,printk(KERN_INFO "%s", version));
1243
1244
1245 dev->netdev_ops = &i596_netdev_ops;
1246 dev->watchdog_timeo = TX_TIMEOUT;
1247
1248 dev->ml_priv = (void *)(dev->mem_start);
1249
1250 lp = dev->ml_priv;
1251 DEB(DEB_INIT,printk(KERN_DEBUG "%s: lp at 0x%08lx (%zd bytes), "
1252 "lp->scb at 0x%08lx\n",
1253 dev->name, (unsigned long)lp,
1254 sizeof(struct i596_private), (unsigned long)&lp->scb));
1255 memset((void *) lp, 0, sizeof(struct i596_private));
1256
1257#ifdef __mc68000__
1258 cache_push(virt_to_phys((void *)(dev->mem_start)), 4096);
1259 cache_clear(virt_to_phys((void *)(dev->mem_start)), 4096);
1260 kernel_set_cachemode((void *)(dev->mem_start), 4096, IOMAP_NOCACHE_SER);
1261#endif
1262 lp->scb.command = 0;
1263 lp->scb.cmd = I596_NULL;
1264 lp->scb.rfd = I596_NULL;
1265 spin_lock_init(&lp->lock);
1266
1267 err = register_netdev(dev);
1268 if (err)
1269 goto out2;
1270 return dev;
1271out2:
1272#ifdef __mc68000__
1273
1274
1275
1276 kernel_set_cachemode((void *)(dev->mem_start), 4096,
1277 IOMAP_FULL_CACHING);
1278#endif
1279 free_page ((u32)(dev->mem_start));
1280out1:
1281#ifdef ENABLE_APRICOT
1282 release_region(dev->base_addr, I596_TOTAL_SIZE);
1283#endif
1284out:
1285 free_netdev(dev);
1286 return ERR_PTR(err);
1287}
1288
1289static irqreturn_t i596_interrupt(int irq, void *dev_id)
1290{
1291 struct net_device *dev = dev_id;
1292 struct i596_private *lp;
1293 short ioaddr;
1294 unsigned short status, ack_cmd = 0;
1295 int handled = 0;
1296
1297#ifdef ENABLE_BVME6000_NET
1298 if (MACH_IS_BVME6000) {
1299 if (*(char *) BVME_LOCAL_IRQ_STAT & BVME_ETHERR) {
1300 i596_error(irq, dev_id);
1301 return IRQ_HANDLED;
1302 }
1303 }
1304#endif
1305 if (dev == NULL) {
1306 printk(KERN_ERR "i596_interrupt(): irq %d for unknown device.\n", irq);
1307 return IRQ_NONE;
1308 }
1309
1310 ioaddr = dev->base_addr;
1311 lp = dev->ml_priv;
1312
1313 spin_lock (&lp->lock);
1314
1315 wait_cmd(dev,lp,100,"i596 interrupt, timeout");
1316 status = lp->scb.status;
1317
1318 DEB(DEB_INTS,printk(KERN_DEBUG "%s: i596 interrupt, IRQ %d, status %4.4x.\n",
1319 dev->name, irq, status));
1320
1321 ack_cmd = status & 0xf000;
1322
1323 if ((status & 0x8000) || (status & 0x2000)) {
1324 struct i596_cmd *ptr;
1325
1326 handled = 1;
1327 if ((status & 0x8000))
1328 DEB(DEB_INTS,printk(KERN_DEBUG "%s: i596 interrupt completed command.\n", dev->name));
1329 if ((status & 0x2000))
1330 DEB(DEB_INTS,printk(KERN_DEBUG "%s: i596 interrupt command unit inactive %x.\n", dev->name, status & 0x0700));
1331
1332 while ((lp->cmd_head != I596_NULL) && (lp->cmd_head->status & STAT_C)) {
1333 ptr = lp->cmd_head;
1334
1335 DEB(DEB_STATUS,printk(KERN_DEBUG "cmd_head->status = %04x, ->command = %04x\n",
1336 lp->cmd_head->status, lp->cmd_head->command));
1337 lp->cmd_head = ptr->v_next;
1338 lp->cmd_backlog--;
1339
1340 switch ((ptr->command) & 0x7) {
1341 case CmdTx:
1342 {
1343 struct tx_cmd *tx_cmd = (struct tx_cmd *) ptr;
1344 struct sk_buff *skb = tx_cmd->skb;
1345
1346 if ((ptr->status) & STAT_OK) {
1347 DEB(DEB_TXADDR,print_eth(skb->data, "tx-done"));
1348 } else {
1349 dev->stats.tx_errors++;
1350 if ((ptr->status) & 0x0020)
1351 dev->stats.collisions++;
1352 if (!((ptr->status) & 0x0040))
1353 dev->stats.tx_heartbeat_errors++;
1354 if ((ptr->status) & 0x0400)
1355 dev->stats.tx_carrier_errors++;
1356 if ((ptr->status) & 0x0800)
1357 dev->stats.collisions++;
1358 if ((ptr->status) & 0x1000)
1359 dev->stats.tx_aborted_errors++;
1360 }
1361
1362 dev_kfree_skb_irq(skb);
1363
1364 tx_cmd->cmd.command = 0;
1365 break;
1366 }
1367 case CmdTDR:
1368 {
1369 unsigned short status = ((struct tdr_cmd *)ptr)->status;
1370
1371 if (status & 0x8000) {
1372 DEB(DEB_TDR,printk(KERN_INFO "%s: link ok.\n", dev->name));
1373 } else {
1374 if (status & 0x4000)
1375 printk(KERN_ERR "%s: Transceiver problem.\n", dev->name);
1376 if (status & 0x2000)
1377 printk(KERN_ERR "%s: Termination problem.\n", dev->name);
1378 if (status & 0x1000)
1379 printk(KERN_ERR "%s: Short circuit.\n", dev->name);
1380
1381 DEB(DEB_TDR,printk(KERN_INFO "%s: Time %d.\n", dev->name, status & 0x07ff));
1382 }
1383 break;
1384 }
1385 case CmdConfigure:
1386 case CmdMulticastList:
1387
1388 ptr->command = 0;
1389 break;
1390 }
1391 ptr->v_next = ptr->b_next = I596_NULL;
1392 lp->last_cmd = jiffies;
1393 }
1394
1395 ptr = lp->cmd_head;
1396 while ((ptr != I596_NULL) && (ptr != lp->cmd_tail)) {
1397 ptr->command &= 0x1fff;
1398 ptr = ptr->v_next;
1399 }
1400
1401 if ((lp->cmd_head != I596_NULL))
1402 ack_cmd |= CUC_START;
1403 lp->scb.cmd = WSWAPcmd(virt_to_bus(&lp->cmd_head->status));
1404 }
1405 if ((status & 0x1000) || (status & 0x4000)) {
1406 if ((status & 0x4000))
1407 DEB(DEB_INTS,printk(KERN_DEBUG "%s: i596 interrupt received a frame.\n", dev->name));
1408 i596_rx(dev);
1409
1410 if (status & 0x1000) {
1411 if (netif_running(dev)) {
1412 DEB(DEB_ERRORS,printk(KERN_ERR "%s: i596 interrupt receive unit inactive, status 0x%x\n", dev->name, status));
1413 ack_cmd |= RX_START;
1414 dev->stats.rx_errors++;
1415 dev->stats.rx_fifo_errors++;
1416 rebuild_rx_bufs(dev);
1417 }
1418 }
1419 }
1420 wait_cmd(dev,lp,100,"i596 interrupt, timeout");
1421 lp->scb.command = ack_cmd;
1422
1423#ifdef ENABLE_MVME16x_NET
1424 if (MACH_IS_MVME16x) {
1425
1426
1427 volatile unsigned char *pcc2 = (unsigned char *) 0xfff42000;
1428
1429 pcc2[0x2a] |= 0x08;
1430 }
1431#endif
1432#ifdef ENABLE_BVME6000_NET
1433 if (MACH_IS_BVME6000) {
1434 volatile unsigned char *ethirq = (unsigned char *) BVME_ETHIRQ_REG;
1435
1436 *ethirq = 1;
1437 *ethirq = 3;
1438 }
1439#endif
1440#ifdef ENABLE_APRICOT
1441 (void) inb(ioaddr + 0x10);
1442 outb(4, ioaddr + 0xf);
1443#endif
1444 CA(dev);
1445
1446 DEB(DEB_INTS,printk(KERN_DEBUG "%s: exiting interrupt.\n", dev->name));
1447
1448 spin_unlock (&lp->lock);
1449 return IRQ_RETVAL(handled);
1450}
1451
1452static int i596_close(struct net_device *dev)
1453{
1454 struct i596_private *lp = dev->ml_priv;
1455 unsigned long flags;
1456
1457 netif_stop_queue(dev);
1458
1459 DEB(DEB_INIT,printk(KERN_DEBUG "%s: Shutting down ethercard, status was %4.4x.\n",
1460 dev->name, lp->scb.status));
1461
1462 spin_lock_irqsave(&lp->lock, flags);
1463
1464 wait_cmd(dev,lp,100,"close1 timed out");
1465 lp->scb.command = CUC_ABORT | RX_ABORT;
1466 CA(dev);
1467
1468 wait_cmd(dev,lp,100,"close2 timed out");
1469
1470 spin_unlock_irqrestore(&lp->lock, flags);
1471 DEB(DEB_STRUCT,i596_display_data(dev));
1472 i596_cleanup_cmd(dev,lp);
1473
1474#ifdef ENABLE_MVME16x_NET
1475 if (MACH_IS_MVME16x) {
1476 volatile unsigned char *pcc2 = (unsigned char *) 0xfff42000;
1477
1478
1479 pcc2[0x28] = 1;
1480 pcc2[0x2a] = 0x40;
1481 pcc2[0x2b] = 0x40;
1482 }
1483#endif
1484#ifdef ENABLE_BVME6000_NET
1485 if (MACH_IS_BVME6000) {
1486 volatile unsigned char *ethirq = (unsigned char *) BVME_ETHIRQ_REG;
1487
1488 *ethirq = 1;
1489 }
1490#endif
1491
1492 free_irq(dev->irq, dev);
1493 remove_rx_bufs(dev);
1494
1495 return 0;
1496}
1497
1498
1499
1500
1501
1502static void set_multicast_list(struct net_device *dev)
1503{
1504 struct i596_private *lp = dev->ml_priv;
1505 int config = 0, cnt;
1506
1507 DEB(DEB_MULTI,printk(KERN_DEBUG "%s: set multicast list, %d entries, promisc %s, allmulti %s\n",
1508 dev->name, dev->mc_count,
1509 dev->flags & IFF_PROMISC ? "ON" : "OFF",
1510 dev->flags & IFF_ALLMULTI ? "ON" : "OFF"));
1511
1512 if (wait_cfg(dev, &lp->cf_cmd.cmd, 1000, "config change request timed out"))
1513 return;
1514
1515 if ((dev->flags & IFF_PROMISC) && !(lp->cf_cmd.i596_config[8] & 0x01)) {
1516 lp->cf_cmd.i596_config[8] |= 0x01;
1517 config = 1;
1518 }
1519 if (!(dev->flags & IFF_PROMISC) && (lp->cf_cmd.i596_config[8] & 0x01)) {
1520 lp->cf_cmd.i596_config[8] &= ~0x01;
1521 config = 1;
1522 }
1523 if ((dev->flags & IFF_ALLMULTI) && (lp->cf_cmd.i596_config[11] & 0x20)) {
1524 lp->cf_cmd.i596_config[11] &= ~0x20;
1525 config = 1;
1526 }
1527 if (!(dev->flags & IFF_ALLMULTI) && !(lp->cf_cmd.i596_config[11] & 0x20)) {
1528 lp->cf_cmd.i596_config[11] |= 0x20;
1529 config = 1;
1530 }
1531 if (config) {
1532 lp->cf_cmd.cmd.command = CmdConfigure;
1533 i596_add_cmd(dev, &lp->cf_cmd.cmd);
1534 }
1535
1536 cnt = dev->mc_count;
1537 if (cnt > MAX_MC_CNT)
1538 {
1539 cnt = MAX_MC_CNT;
1540 printk(KERN_ERR "%s: Only %d multicast addresses supported",
1541 dev->name, cnt);
1542 }
1543
1544 if (dev->mc_count > 0) {
1545 struct dev_mc_list *dmi;
1546 unsigned char *cp;
1547 struct mc_cmd *cmd;
1548
1549 if (wait_cfg(dev, &lp->mc_cmd.cmd, 1000, "multicast list change request timed out"))
1550 return;
1551 cmd = &lp->mc_cmd;
1552 cmd->cmd.command = CmdMulticastList;
1553 cmd->mc_cnt = dev->mc_count * 6;
1554 cp = cmd->mc_addrs;
1555 for (dmi = dev->mc_list; cnt && dmi != NULL; dmi = dmi->next, cnt--, cp += 6) {
1556 memcpy(cp, dmi->dmi_addr, 6);
1557 if (i596_debug > 1)
1558 DEB(DEB_MULTI,printk(KERN_INFO "%s: Adding address %pM\n",
1559 dev->name, cp));
1560 }
1561 i596_add_cmd(dev, &cmd->cmd);
1562 }
1563}
1564
1565#ifdef MODULE
1566static struct net_device *dev_82596;
1567
1568#ifdef ENABLE_APRICOT
1569module_param(irq, int, 0);
1570MODULE_PARM_DESC(irq, "Apricot IRQ number");
1571#endif
1572
1573static int debug = -1;
1574module_param(debug, int, 0);
1575MODULE_PARM_DESC(debug, "i82596 debug mask");
1576
1577int __init init_module(void)
1578{
1579 if (debug >= 0)
1580 i596_debug = debug;
1581 dev_82596 = i82596_probe(-1);
1582 if (IS_ERR(dev_82596))
1583 return PTR_ERR(dev_82596);
1584 return 0;
1585}
1586
1587void __exit cleanup_module(void)
1588{
1589 unregister_netdev(dev_82596);
1590#ifdef __mc68000__
1591
1592
1593
1594
1595 kernel_set_cachemode((void *)(dev_82596->mem_start), 4096,
1596 IOMAP_FULL_CACHING);
1597#endif
1598 free_page ((u32)(dev_82596->mem_start));
1599#ifdef ENABLE_APRICOT
1600
1601 release_region(dev_82596->base_addr, I596_TOTAL_SIZE);
1602#endif
1603 free_netdev(dev_82596);
1604}
1605
1606#endif
1607
