summaryrefslogtreecommitdiffstats
path: root/drivers/net/ethernet/i825xx/sun3_82586.c
blob: f2d4669c81cf2981df38f609789989c13058ad12 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137
1138
1139
1140
1141
1142
1143
1144
1145
1146
1147
1148
1149
1150
1151
1152
1153
1154
1155
1156
1157
1158
1159
1160
1161
1162
1163
1164
1165
1166
1167
1168
1169
1170
1171
1172
1173
1174
1175
1176
1177
1178
1179
1180
1181
1182
1183
1184
1185
1186
// SPDX-License-Identifier: GPL-2.0-only
/*
 * Sun3 i82586 Ethernet driver
 *
 * Cloned from ni52.c for the Sun3 by Sam Creasey (sammy@sammy.net)
 *
 * Original copyright follows:
 * --------------------------
 *
 * net-3-driver for the NI5210 card (i82586 Ethernet chip)
 *
 * This is an extension to the Linux operating system, and is covered by the
 * same Gnu Public License that covers that work.
 *
 * Alphacode 0.82 (96/09/29) for Linux 2.0.0 (or later)
 * Copyrights (c) 1994,1995,1996 by M.Hipp (hippm@informatik.uni-tuebingen.de)
 * --------------------------
 *
 * Consult ni52.c for further notes from the original driver.
 *
 * This incarnation currently supports the OBIO version of the i82586 chip
 * used in certain sun3 models.  It should be fairly doable to expand this
 * to support VME if I should every acquire such a board.
 *
 */

static int debuglevel = 0; /* debug-printk 0: off 1: a few 2: more */
static int automatic_resume = 0; /* experimental .. better should be zero */
static int rfdadd = 0; /* rfdadd=1 may be better for 8K MEM cards */
static int fifo=0x8;	/* don't change */

#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/string.h>
#include <linux/errno.h>
#include <linux/ioport.h>
#include <linux/interrupt.h>
#include <linux/delay.h>
#include <linux/init.h>
#include <linux/bitops.h>
#include <asm/io.h>
#include <asm/idprom.h>
#include <asm/machines.h>
#include <asm/sun3mmu.h>
#include <asm/dvma.h>
#include <asm/byteorder.h>

#include <linux/netdevice.h>
#include <linux/etherdevice.h>
#include <linux/skbuff.h>

#include "sun3_82586.h"

#define DRV_NAME "sun3_82586"

#define DEBUG       /* debug on */
#define SYSBUSVAL 0 /* 16 Bit */
#define SUN3_82586_TOTAL_SIZE	PAGE_SIZE

#define sun3_attn586()  {*(volatile unsigned char *)(dev->base_addr) |= IEOB_ATTEN; *(volatile unsigned char *)(dev->base_addr) &= ~IEOB_ATTEN;}
#define sun3_reset586() {*(volatile unsigned char *)(dev->base_addr) = 0; udelay(100); *(volatile unsigned char *)(dev->base_addr) = IEOB_NORSET;}
#define sun3_disint()   {*(volatile unsigned char *)(dev->base_addr) &= ~IEOB_IENAB;}
#define sun3_enaint()   {*(volatile unsigned char *)(dev->base_addr) |= IEOB_IENAB;}
#define sun3_active()   {*(volatile unsigned char *)(dev->base_addr) |= (IEOB_IENAB|IEOB_ONAIR|IEOB_NORSET);}

#define make32(ptr16) (p->memtop + (swab16((unsigned short) (ptr16))) )
#define make24(ptr32) (char *)swab32(( ((unsigned long) (ptr32)) - p->base))
#define make16(ptr32) (swab16((unsigned short) ((unsigned long)(ptr32) - (unsigned long) p->memtop )))

/******************* how to calculate the buffers *****************************

  * IMPORTANT NOTE: if you configure only one NUM_XMIT_BUFFS, the driver works
  * --------------- in a different (more stable?) mode. Only in this mode it's
  *                 possible to configure the driver with 'NO_NOPCOMMANDS'

sizeof(scp)=12; sizeof(scb)=16; sizeof(iscp)=8;
sizeof(scp)+sizeof(iscp)+sizeof(scb) = 36 = INIT
sizeof(rfd) = 24; sizeof(rbd) = 12;
sizeof(tbd) = 8; sizeof(transmit_cmd) = 16;
sizeof(nop_cmd) = 8;

  * if you don't know the driver, better do not change these values: */

#define RECV_BUFF_SIZE 1536 /* slightly oversized */
#define XMIT_BUFF_SIZE 1536 /* slightly oversized */
#define NUM_XMIT_BUFFS 1    /* config for 32K shmem */
#define NUM_RECV_BUFFS_8 4 /* config for 32K shared mem */
#define NUM_RECV_BUFFS_16 9 /* config for 32K shared mem */
#define NUM_RECV_BUFFS_32 16 /* config for 32K shared mem */
#define NO_NOPCOMMANDS      /* only possible with NUM_XMIT_BUFFS=1 */

/**************************************************************************/

/* different DELAYs */
#define DELAY(x) mdelay(32 * x);
#define DELAY_16(); { udelay(16); }
#define DELAY_18(); { udelay(4); }

/* wait for command with timeout: */
#define WAIT_4_SCB_CMD() \
{ int i; \
  for(i=0;i<16384;i++) { \
    if(!p->scb->cmd_cuc) break; \
    DELAY_18(); \
    if(i == 16383) { \
      printk("%s: scb_cmd timed out: %04x,%04x .. disabling i82586!!\n",dev->name,p->scb->cmd_cuc,p->scb->cus); \
       if(!p->reseted) { p->reseted = 1; sun3_reset586(); } } } }

#define WAIT_4_SCB_CMD_RUC() { int i; \
  for(i=0;i<16384;i++) { \
    if(!p->scb->cmd_ruc) break; \
    DELAY_18(); \
    if(i == 16383) { \
      printk("%s: scb_cmd (ruc) timed out: %04x,%04x .. disabling i82586!!\n",dev->name,p->scb->cmd_ruc,p->scb->rus); \
       if(!p->reseted) { p->reseted = 1; sun3_reset586(); } } } }

#define WAIT_4_STAT_COMPL(addr) { int i; \
   for(i=0;i<32767;i++) { \
     if(swab16((addr)->cmd_status) & STAT_COMPL) break; \
     DELAY_16(); DELAY_16(); } }

static int     sun3_82586_probe1(struct net_device *dev,int ioaddr);
static irqreturn_t sun3_82586_interrupt(int irq,void *dev_id);
static int     sun3_82586_open(struct net_device *dev);
static int     sun3_82586_close(struct net_device *dev);
static netdev_tx_t     sun3_82586_send_packet(struct sk_buff *,
					      struct net_device *);
static struct  net_device_stats *sun3_82586_get_stats(struct net_device *dev);
static void    set_multicast_list(struct net_device *dev);
static void    sun3_82586_timeout(struct net_device *dev, unsigned int txqueue);
#if 0
static void    sun3_82586_dump(struct net_device *,void *);
#endif

/* helper-functions */
static int     init586(struct net_device *dev);
static int     check586(struct net_device *dev,char *where,unsigned size);
static void    alloc586(struct net_device *dev);
static void    startrecv586(struct net_device *dev);
static void   *alloc_rfa(struct net_device *dev,void *ptr);
static void    sun3_82586_rcv_int(struct net_device *dev);
static void    sun3_82586_xmt_int(struct net_device *dev);
static void    sun3_82586_rnr_int(struct net_device *dev);

struct priv
{
	unsigned long base;
	char *memtop;
	long int lock;
	int reseted;
	volatile struct rfd_struct	*rfd_last,*rfd_top,*rfd_first;
	volatile struct scp_struct	*scp;	/* volatile is important */
	volatile struct iscp_struct	*iscp;	/* volatile is important */
	volatile struct scb_struct	*scb;	/* volatile is important */
	volatile struct tbd_struct	*xmit_buffs[NUM_XMIT_BUFFS];
	volatile struct transmit_cmd_struct *xmit_cmds[NUM_XMIT_BUFFS];
#if (NUM_XMIT_BUFFS == 1)
	volatile struct nop_cmd_struct *nop_cmds[2];
#else
	volatile struct nop_cmd_struct *nop_cmds[NUM_XMIT_BUFFS];
#endif
	volatile int		nop_point,num_recv_buffs;
	volatile char		*xmit_cbuffs[NUM_XMIT_BUFFS];
	volatile int		xmit_count,xmit_last;
};

/**********************************************
 * close device
 */
static int sun3_82586_close(struct net_device *dev)
{
	free_irq(dev->irq, dev);

	sun3_reset586(); /* the hard way to stop the receiver */

	netif_stop_queue(dev);

	return 0;
}

/**********************************************
 * open device
 */
static int sun3_82586_open(struct net_device *dev)
{
	int ret;

	sun3_disint();
	alloc586(dev);
	init586(dev);
	startrecv586(dev);
	sun3_enaint();

	ret = request_irq(dev->irq, sun3_82586_interrupt,0,dev->name,dev);
	if (ret)
	{
		sun3_reset586();
		return ret;
	}

	netif_start_queue(dev);

	return 0; /* most done by init */
}

/**********************************************
 * Check to see if there's an 82586 out there.
 */
static int check586(struct net_device *dev,char *where,unsigned size)
{
	struct priv pb;
	struct priv *p = &pb;
	char *iscp_addr;
	int i;

	p->base = (unsigned long) dvma_btov(0);
	p->memtop = (char *)dvma_btov((unsigned long)where);
	p->scp = (struct scp_struct *)(p->base + SCP_DEFAULT_ADDRESS);
	memset((char *)p->scp,0, sizeof(struct scp_struct));
	for(i=0;i<sizeof(struct scp_struct);i++) /* memory was writeable? */
		if(((char *)p->scp)[i])
			return 0;
	p->scp->sysbus = SYSBUSVAL;				/* 1 = 8Bit-Bus, 0 = 16 Bit */
	if(p->scp->sysbus != SYSBUSVAL)
		return 0;

	iscp_addr = (char *)dvma_btov((unsigned long)where);

	p->iscp = (struct iscp_struct *) iscp_addr;
	memset((char *)p->iscp,0, sizeof(struct iscp_struct));

	p->scp->iscp = make24(p->iscp);
	p->iscp->busy = 1;

	sun3_reset586();
	sun3_attn586();
	DELAY(1);	/* wait a while... */

	if(p->iscp->busy) /* i82586 clears 'busy' after successful init */
		return 0;

	return 1;
}

/******************************************************************
 * set iscp at the right place, called by sun3_82586_probe1 and open586.
 */
static void alloc586(struct net_device *dev)
{
	struct priv *p = netdev_priv(dev);

	sun3_reset586();
	DELAY(1);

	p->scp	= (struct scp_struct *)	(p->base + SCP_DEFAULT_ADDRESS);
	p->iscp	= (struct iscp_struct *) dvma_btov(dev->mem_start);
	p->scb  = (struct scb_struct *)  ((char *)p->iscp + sizeof(struct iscp_struct));

	memset((char *) p->iscp,0,sizeof(struct iscp_struct));
	memset((char *) p->scp ,0,sizeof(struct scp_struct));

	p->scp->iscp = make24(p->iscp);
	p->scp->sysbus = SYSBUSVAL;
	p->iscp->scb_offset = make16(p->scb);
	p->iscp->scb_base = make24(dvma_btov(dev->mem_start));

	p->iscp->busy = 1;
	sun3_reset586();
	sun3_attn586();

	DELAY(1);

	if(p->iscp->busy)
		printk("%s: Init-Problems (alloc).\n",dev->name);

	p->reseted = 0;

	memset((char *)p->scb,0,sizeof(struct scb_struct));
}

static int __init sun3_82586_probe(void)
{
	struct net_device *dev;
	unsigned long ioaddr;
	static int found = 0;
	int err = -ENOMEM;

	/* check that this machine has an onboard 82586 */
	switch(idprom->id_machtype) {
	case SM_SUN3|SM_3_160:
	case SM_SUN3|SM_3_260:
		/* these machines have 82586 */
		break;

	default:
		return -ENODEV;
	}

	if (found)
		return -ENODEV;

	ioaddr = (unsigned long)ioremap(IE_OBIO, SUN3_82586_TOTAL_SIZE);
	if (!ioaddr)
		return -ENOMEM;
	found = 1;

	dev = alloc_etherdev(sizeof(struct priv));
	if (!dev)
		goto out;
	dev->irq = IE_IRQ;
	dev->base_addr = ioaddr;
	err = sun3_82586_probe1(dev, ioaddr);
	if (err)
		goto out1;
	err = register_netdev(dev);
	if (err)
		goto out2;
	return 0;

out2:
	release_region(ioaddr, SUN3_82586_TOTAL_SIZE);
out1:
	free_netdev(dev);
out:
	iounmap((void __iomem *)ioaddr);
	return err;
}
module_init(sun3_82586_probe);

static const struct net_device_ops sun3_82586_netdev_ops = {
	.ndo_open		= sun3_82586_open,
	.ndo_stop		= sun3_82586_close,
	.ndo_start_xmit		= sun3_82586_send_packet,
	.ndo_set_rx_mode	= set_multicast_list,
	.ndo_tx_timeout		= sun3_82586_timeout,
	.ndo_get_stats		= sun3_82586_get_stats,
	.ndo_validate_addr	= eth_validate_addr,
	.ndo_set_mac_address	= eth_mac_addr,
};

static int __init sun3_82586_probe1(struct net_device *dev,int ioaddr)
{
	int size, retval;

	if (!request_region(ioaddr, SUN3_82586_TOTAL_SIZE, DRV_NAME))
		return -EBUSY;

	/* copy in the ethernet address from the prom */
	eth_hw_addr_set(dev, idprom->id_ethaddr);

	printk("%s: SUN3 Intel 82586 found at %lx, ",dev->name,dev->base_addr);

	/*
	 * check (or search) IO-Memory, 32K
	 */
	size = 0x8000;

	dev->mem_start = (unsigned long)dvma_malloc_align(0x8000, 0x1000);
	dev->mem_end = dev->mem_start + size;

	if(size != 0x2000 && size != 0x4000 && size != 0x8000) {
		printk("\n%s: Illegal memory size %d. Allowed is 0x2000 or 0x4000 or 0x8000 bytes.\n",dev->name,size);
		retval = -ENODEV;
		goto out;
	}
	if(!check586(dev,(char *) dev->mem_start,size)) {
		printk("?memcheck, Can't find memory at 0x%lx with size %d!\n",dev->mem_start,size);
		retval = -ENODEV;
		goto out;
	}

	((struct priv *)netdev_priv(dev))->memtop =
					(char *)dvma_btov(dev->mem_start);
	((struct priv *)netdev_priv(dev))->base = (unsigned long) dvma_btov(0);
	alloc586(dev);

	/* set number of receive-buffs according to memsize */
	if(size == 0x2000)
		((struct priv *)netdev_priv(dev))->num_recv_buffs =
							NUM_RECV_BUFFS_8;
	else if(size == 0x4000)
		((struct priv *)netdev_priv(dev))->num_recv_buffs =
							NUM_RECV_BUFFS_16;
	else
		((struct priv *)netdev_priv(dev))->num_recv_buffs =
							NUM_RECV_BUFFS_32;

	printk("Memaddr: 0x%lx, Memsize: %d, IRQ %d\n",dev->mem_start,size, dev->irq);

	dev->netdev_ops		= &sun3_82586_netdev_ops;
	dev->watchdog_timeo	= HZ/20;

	dev->if_port 		= 0;
	return 0;
out:
	release_region(ioaddr, SUN3_82586_TOTAL_SIZE);
	return retval;
}


static int init586(struct net_device *dev)
{
	void *ptr;
	int i,result=0;
	struct priv *p = netdev_priv(dev);
	volatile struct configure_cmd_struct	*cfg_cmd;
	volatile struct iasetup_cmd_struct *ias_cmd;
	volatile struct tdr_cmd_struct *tdr_cmd;
	volatile struct mcsetup_cmd_struct *mc_cmd;
	struct netdev_hw_addr *ha;
	int num_addrs=netdev_mc_count(dev);

	ptr = (void *) ((char *)p->scb + sizeof(struct scb_struct));

	cfg_cmd = (struct configure_cmd_struct *)ptr; /* configure-command */
	cfg_cmd->cmd_status	= 0;
	cfg_cmd->cmd_cmd	= swab16(CMD_CONFIGURE | CMD_LAST);
	cfg_cmd->cmd_link	= 0xffff;

	cfg_cmd->byte_cnt	= 0x0a; /* number of cfg bytes */
	cfg_cmd->fifo		= fifo; /* fifo-limit (8=tx:32/rx:64) */
	cfg_cmd->sav_bf		= 0x40; /* hold or discard bad recv frames (bit 7) */
	cfg_cmd->adr_len	= 0x2e; /* addr_len |!src_insert |pre-len |loopback */
	cfg_cmd->priority	= 0x00;
	cfg_cmd->ifs		= 0x60;
	cfg_cmd->time_low	= 0x00;
	cfg_cmd->time_high	= 0xf2;
	cfg_cmd->promisc	= 0;
	if(dev->flags & IFF_ALLMULTI) {
		int len = ((char *) p->iscp - (char *) ptr - 8) / 6;
		if(num_addrs > len)	{
			printk("%s: switching to promisc. mode\n",dev->name);
			cfg_cmd->promisc = 1;
		}
	}
	if(dev->flags&IFF_PROMISC)
		cfg_cmd->promisc = 1;
	cfg_cmd->carr_coll	= 0x00;

	p->scb->cbl_offset	= make16(cfg_cmd);
	p->scb->cmd_ruc		= 0;

	p->scb->cmd_cuc		= CUC_START; /* cmd.-unit start */
	sun3_attn586();

	WAIT_4_STAT_COMPL(cfg_cmd);

	if((swab16(cfg_cmd->cmd_status) & (STAT_OK|STAT_COMPL)) != (STAT_COMPL|STAT_OK))
	{
		printk("%s: configure command failed: %x\n",dev->name,swab16(cfg_cmd->cmd_status));
		return 1;
	}

	/*
	 * individual address setup
	 */

	ias_cmd = (struct iasetup_cmd_struct *)ptr;

	ias_cmd->cmd_status	= 0;
	ias_cmd->cmd_cmd	= swab16(CMD_IASETUP | CMD_LAST);
	ias_cmd->cmd_link	= 0xffff;

	memcpy((char *)&ias_cmd->iaddr,(const char *) dev->dev_addr,ETH_ALEN);

	p->scb->cbl_offset = make16(ias_cmd);

	p->scb->cmd_cuc = CUC_START; /* cmd.-unit start */
	sun3_attn586();

	WAIT_4_STAT_COMPL(ias_cmd);

	if((swab16(ias_cmd->cmd_status) & (STAT_OK|STAT_COMPL)) != (STAT_OK|STAT_COMPL)) {
		printk("%s (82586): individual address setup command failed: %04x\n",dev->name,swab16(ias_cmd->cmd_status));
		return 1;
	}

	/*
	 * TDR, wire check .. e.g. no resistor e.t.c
	 */

	tdr_cmd = (struct tdr_cmd_struct *)ptr;

	tdr_cmd->cmd_status	= 0;
	tdr_cmd->cmd_cmd	= swab16(CMD_TDR | CMD_LAST);
	tdr_cmd->cmd_link	= 0xffff;
	tdr_cmd->status		= 0;

	p->scb->cbl_offset = make16(tdr_cmd);
	p->scb->cmd_cuc = CUC_START; /* cmd.-unit start */
	sun3_attn586();

	WAIT_4_STAT_COMPL(tdr_cmd);

	if(!(swab16(tdr_cmd->cmd_status) & STAT_COMPL))
	{
		printk("%s: Problems while running the TDR.\n",dev->name);
	}
	else
	{
		DELAY_16(); /* wait for result */
		result = swab16(tdr_cmd->status);

		p->scb->cmd_cuc = p->scb->cus & STAT_MASK;
		sun3_attn586(); /* ack the interrupts */

		if(result & TDR_LNK_OK)
			;
		else if(result & TDR_XCVR_PRB)
			printk("%s: TDR: Transceiver problem. Check the cable(s)!\n",dev->name);
		else if(result & TDR_ET_OPN)
			printk("%s: TDR: No correct termination %d clocks away.\n",dev->name,result & TDR_TIMEMASK);
		else if(result & TDR_ET_SRT)
		{
			if (result & TDR_TIMEMASK) /* time == 0 -> strange :-) */
				printk("%s: TDR: Detected a short circuit %d clocks away.\n",dev->name,result & TDR_TIMEMASK);
		}
		else
			printk("%s: TDR: Unknown status %04x\n",dev->name,result);
	}

	/*
	 * Multicast setup
	 */
	if(num_addrs && !(dev->flags & IFF_PROMISC) )
	{
		mc_cmd = (struct mcsetup_cmd_struct *) ptr;
		mc_cmd->cmd_status = 0;
		mc_cmd->cmd_cmd = swab16(CMD_MCSETUP | CMD_LAST);
		mc_cmd->cmd_link = 0xffff;
		mc_cmd->mc_cnt = swab16(num_addrs * 6);

		i = 0;
		netdev_for_each_mc_addr(ha, dev)
			memcpy((char *) mc_cmd->mc_list[i++],
			       ha->addr, ETH_ALEN);

		p->scb->cbl_offset = make16(mc_cmd);
		p->scb->cmd_cuc = CUC_START;
		sun3_attn586();

		WAIT_4_STAT_COMPL(mc_cmd);

		if( (swab16(mc_cmd->cmd_status) & (STAT_COMPL|STAT_OK)) != (STAT_COMPL|STAT_OK) )
			printk("%s: Can't apply multicast-address-list.\n",dev->name);
	}

	/*
	 * alloc nop/xmit-cmds
	 */
#if (NUM_XMIT_BUFFS == 1)
	for(i=0;i<2;i++)
	{
		p->nop_cmds[i] 			= (struct nop_cmd_struct *)ptr;
		p->nop_cmds[i]->cmd_cmd		= swab16(CMD_NOP);
		p->nop_cmds[i]->cmd_status 	= 0;
		p->nop_cmds[i]->cmd_link	= make16((p->nop_cmds[i]));
		ptr = (char *) ptr + sizeof(struct nop_cmd_struct);
	}
#else
	for(i=0;i<NUM_XMIT_BUFFS;i++)
	{
		p->nop_cmds[i]			= (struct nop_cmd_struct *)ptr;
		p->nop_cmds[i]->cmd_cmd		= swab16(CMD_NOP);
		p->nop_cmds[i]->cmd_status	= 0;
		p->nop_cmds[i]->cmd_link	= make16((p->nop_cmds[i]));
		ptr = (char *) ptr + sizeof(struct nop_cmd_struct);
	}
#endif

	ptr = alloc_rfa(dev,ptr); /* init receive-frame-area */

	/*
	 * alloc xmit-buffs / init xmit_cmds
	 */
	for(i=0;i<NUM_XMIT_BUFFS;i++)
	{
		p->xmit_cmds[i] = (struct transmit_cmd_struct *)ptr; /*transmit cmd/buff 0*/
		ptr = (char *) ptr + sizeof(struct transmit_cmd_struct);
		p->xmit_cbuffs[i] = (char *)ptr; /* char-buffs */
		ptr = (char *) ptr + XMIT_BUFF_SIZE;
		p->xmit_buffs[i] = (struct tbd_struct *)ptr; /* TBD */
		ptr = (char *) ptr + sizeof(struct tbd_struct);
		if(ptr > (void *)dev->mem_end)
		{
			printk("%s: not enough shared-mem for your configuration!\n",dev->name);
			return 1;
		}
		memset((char *)(p->xmit_cmds[i]) ,0, sizeof(struct transmit_cmd_struct));
		memset((char *)(p->xmit_buffs[i]),0, sizeof(struct tbd_struct));
		p->xmit_cmds[i]->cmd_link = make16(p->nop_cmds[(i+1)%NUM_XMIT_BUFFS]);
		p->xmit_cmds[i]->cmd_status = swab16(STAT_COMPL);
		p->xmit_cmds[i]->cmd_cmd = swab16(CMD_XMIT | CMD_INT);
		p->xmit_cmds[i]->tbd_offset = make16((p->xmit_buffs[i]));
		p->xmit_buffs[i]->next = 0xffff;
		p->xmit_buffs[i]->buffer = make24((p->xmit_cbuffs[i]));
	}

	p->xmit_count = 0;
	p->xmit_last	= 0;
#ifndef NO_NOPCOMMANDS
	p->nop_point	= 0;
#endif

	 /*
		* 'start transmitter'
		*/
#ifndef NO_NOPCOMMANDS
	p->scb->cbl_offset = make16(p->nop_cmds[0]);
	p->scb->cmd_cuc = CUC_START;
	sun3_attn586();
	WAIT_4_SCB_CMD();
#else
	p->xmit_cmds[0]->cmd_link = make16(p->xmit_cmds[0]);
	p->xmit_cmds[0]->cmd_cmd	= swab16(CMD_XMIT | CMD_SUSPEND | CMD_INT);
#endif

	/*
	 * ack. interrupts
	 */
	p->scb->cmd_cuc = p->scb->cus & STAT_MASK;
	sun3_attn586();
	DELAY_16();

	sun3_enaint();
	sun3_active();

	return 0;
}

/******************************************************
 * This is a helper routine for sun3_82586_rnr_int() and init586().
 * It sets up the Receive Frame Area (RFA).
 */

static void *alloc_rfa(struct net_device *dev,void *ptr)
{
	volatile struct rfd_struct *rfd = (struct rfd_struct *)ptr;
	volatile struct rbd_struct *rbd;
	int i;
	struct priv *p = netdev_priv(dev);

	memset((char *) rfd,0,sizeof(struct rfd_struct)*(p->num_recv_buffs+rfdadd));
	p->rfd_first = rfd;

	for(i = 0; i < (p->num_recv_buffs+rfdadd); i++) {
		rfd[i].next = make16(rfd + (i+1) % (p->num_recv_buffs+rfdadd) );
		rfd[i].rbd_offset = 0xffff;
	}
	rfd[p->num_recv_buffs-1+rfdadd].last = RFD_SUSP;	 /* RU suspend */

	ptr = (void *) (rfd + (p->num_recv_buffs + rfdadd) );

	rbd = (struct rbd_struct *) ptr;
	ptr = (void *) (rbd + p->num_recv_buffs);

	 /* clr descriptors */
	memset((char *) rbd,0,sizeof(struct rbd_struct)*(p->num_recv_buffs));

	for(i=0;i<p->num_recv_buffs;i++)
	{
		rbd[i].next = make16((rbd + (i+1) % p->num_recv_buffs));
		rbd[i].size = swab16(RECV_BUFF_SIZE);
		rbd[i].buffer = make24(ptr);
		ptr = (char *) ptr + RECV_BUFF_SIZE;
	}

	p->rfd_top	= p->rfd_first;
	p->rfd_last = p->rfd_first + (p->num_recv_buffs - 1 + rfdadd);

	p->scb->rfa_offset		= make16(p->rfd_first);
	p->rfd_first->rbd_offset	= make16(rbd);

	return ptr;
}


/**************************************************
 * Interrupt Handler ...
 */

static irqreturn_t sun3_82586_interrupt(int irq,void *dev_id)
{
	struct net_device *dev = dev_id;
	unsigned short stat;
	int cnt=0;
	struct priv *p;

	if (!dev) {
		printk ("sun3_82586-interrupt: irq %d for unknown device.\n",irq);
		return IRQ_NONE;
	}
	p = netdev_priv(dev);

	if(debuglevel > 1)
		printk("I");

	WAIT_4_SCB_CMD(); /* wait for last command	*/

	while((stat=p->scb->cus & STAT_MASK))
	{
		p->scb->cmd_cuc = stat;
		sun3_attn586();

		if(stat & STAT_FR)	 /* received a frame */
			sun3_82586_rcv_int(dev);

		if(stat & STAT_RNR) /* RU went 'not ready' */
		{
			printk("(R)");
			if(p->scb->rus & RU_SUSPEND) /* special case: RU_SUSPEND */
			{
				WAIT_4_SCB_CMD();
				p->scb->cmd_ruc = RUC_RESUME;
				sun3_attn586();
				WAIT_4_SCB_CMD_RUC();
			}
			else
			{
				printk("%s: Receiver-Unit went 'NOT READY': %04x/%02x.\n",dev->name,(int) stat,(int) p->scb->rus);
				sun3_82586_rnr_int(dev);
			}
		}

		if(stat & STAT_CX)		/* command with I-bit set complete */
			 sun3_82586_xmt_int(dev);

#ifndef NO_NOPCOMMANDS
		if(stat & STAT_CNA)	/* CU went 'not ready' */
		{
			if(netif_running(dev))
				printk("%s: oops! CU has left active state. stat: %04x/%02x.\n",dev->name,(int) stat,(int) p->scb->cus);
		}
#endif

		if(debuglevel > 1)
			printk("%d",cnt++);

		WAIT_4_SCB_CMD(); /* wait for ack. (sun3_82586_xmt_int can be faster than ack!!) */
		if(p->scb->cmd_cuc)	 /* timed out? */
		{
			printk("%s: Acknowledge timed out.\n",dev->name);
			sun3_disint();
			break;
		}
	}

	if(debuglevel > 1)
		printk("i");
	return IRQ_HANDLED;
}

/*******************************************************
 * receive-interrupt
 */

static void sun3_82586_rcv_int(struct net_device *dev)
{
	int status,cnt=0;
	unsigned short totlen;
	struct sk_buff *skb;
	struct rbd_struct *rbd;
	struct priv *p = netdev_priv(dev);

	if(debuglevel > 0)
		printk("R");

	for(;(status = p->rfd_top->stat_high) & RFD_COMPL;)
	{
			rbd = (struct rbd_struct *) make32(p->rfd_top->rbd_offset);

			if(status & RFD_OK) /* frame received without error? */
			{
				if( (totlen = swab16(rbd->status)) & RBD_LAST) /* the first and the last buffer? */
				{
					totlen &= RBD_MASK; /* length of this frame */
					rbd->status = 0;
					skb = netdev_alloc_skb(dev, totlen + 2);
					if(skb != NULL)
					{
						skb_reserve(skb,2);
						skb_put(skb,totlen);
						skb_copy_to_linear_data(skb,(char *) p->base+swab32((unsigned long) rbd->buffer),totlen);
						skb->protocol=eth_type_trans(skb,dev);
						netif_rx(skb);
						dev->stats.rx_packets++;
					}
					else
						dev->stats.rx_dropped++;
				}
				else
				{
					int rstat;
						 /* free all RBD's until RBD_LAST is set */
					totlen = 0;
					while(!((rstat=swab16(rbd->status)) & RBD_LAST))
					{
						totlen += rstat & RBD_MASK;
						if(!rstat)
						{
							printk("%s: Whoops .. no end mark in RBD list\n",dev->name);
							break;
						}
						rbd->status = 0;
						rbd = (struct rbd_struct *) make32(rbd->next);
					}
					totlen += rstat & RBD_MASK;
					rbd->status = 0;
					printk("%s: received oversized frame! length: %d\n",dev->name,totlen);
					dev->stats.rx_dropped++;
			 }
		}
		else /* frame !(ok), only with 'save-bad-frames' */
		{
			printk("%s: oops! rfd-error-status: %04x\n",dev->name,status);
			dev->stats.rx_errors++;
		}
		p->rfd_top->stat_high = 0;
		p->rfd_top->last = RFD_SUSP; /* maybe exchange by RFD_LAST */
		p->rfd_top->rbd_offset = 0xffff;
		p->rfd_last->last = 0;				/* delete RFD_SUSP	*/
		p->rfd_last = p->rfd_top;
		p->rfd_top = (struct rfd_struct *) make32(p->rfd_top->next); /* step to next RFD */
		p->scb->rfa_offset = make16(p->rfd_top);

		if(debuglevel > 0)
			printk("%d",cnt++);
	}

	if(automatic_resume)
	{
		WAIT_4_SCB_CMD();
		p->scb->cmd_ruc = RUC_RESUME;
		sun3_attn586();
		WAIT_4_SCB_CMD_RUC();
	}

#ifdef WAIT_4_BUSY
	{
		int i;
		for(i=0;i<1024;i++)
		{
			if(p->rfd_top->status)
				break;
			DELAY_16();
			if(i == 1023)
				printk("%s: RU hasn't fetched next RFD (not busy/complete)\n",dev->name);
		}
	}
#endif

#if 0
	if(!at_least_one)
	{
		int i;
		volatile struct rfd_struct *rfds=p->rfd_top;
		volatile struct rbd_struct *rbds;
		printk("%s: received a FC intr. without having a frame: %04x %d\n",dev->name,status,old_at_least);
		for(i=0;i< (p->num_recv_buffs+4);i++)
		{
			rbds = (struct rbd_struct *) make32(rfds->rbd_offset);
			printk("%04x:%04x ",rfds->status,rbds->status);
			rfds = (struct rfd_struct *) make32(rfds->next);
		}
		printk("\nerrs: %04x %04x stat: %04x\n",(int)p->scb->rsc_errs,(int)p->scb->ovrn_errs,(int)p->scb->status);
		printk("\nerrs: %04x %04x rus: %02x, cus: %02x\n",(int)p->scb->rsc_errs,(int)p->scb->ovrn_errs,(int)p->scb->rus,(int)p->scb->cus);
	}
	old_at_least = at_least_one;
#endif

	if(debuglevel > 0)
		printk("r");
}

/**********************************************************
 * handle 'Receiver went not ready'.
 */

static void sun3_82586_rnr_int(struct net_device *dev)
{
	struct priv *p = netdev_priv(dev);

	dev->stats.rx_errors++;

	WAIT_4_SCB_CMD();		/* wait for the last cmd, WAIT_4_FULLSTAT?? */
	p->scb->cmd_ruc = RUC_ABORT; /* usually the RU is in the 'no resource'-state .. abort it now. */
	sun3_attn586();
	WAIT_4_SCB_CMD_RUC();		/* wait for accept cmd. */

	alloc_rfa(dev,(char *)p->rfd_first);
/* maybe add a check here, before restarting the RU */
	startrecv586(dev); /* restart RU */

	printk("%s: Receive-Unit restarted. Status: %04x\n",dev->name,p->scb->rus);

}

/**********************************************************
 * handle xmit - interrupt
 */

static void sun3_82586_xmt_int(struct net_device *dev)
{
	int status;
	struct priv *p = netdev_priv(dev);

	if(debuglevel > 0)
		printk("X");

	status = swab16(p->xmit_cmds[p->xmit_last]->cmd_status);
	if(!(status & STAT_COMPL))
		printk("%s: strange .. xmit-int without a 'COMPLETE'\n",dev->name);

	if(status & STAT_OK)
	{
		dev->stats.tx_packets++;
		dev->stats.collisions += (status & TCMD_MAXCOLLMASK);
	}
	else
	{
		dev->stats.tx_errors++;
		if(status & TCMD_LATECOLL) {
			printk("%s: late collision detected.\n",dev->name);
			dev->stats.collisions++;
		}
		else if(status & TCMD_NOCARRIER) {
			dev->stats.tx_carrier_errors++;
			printk("%s: no carrier detected.\n",dev->name);
		}
		else if(status & TCMD_LOSTCTS)
			printk("%s: loss of CTS detected.\n",dev->name);
		else if(status & TCMD_UNDERRUN) {
			dev->stats.tx_fifo_errors++;
			printk("%s: DMA underrun detected.\n",dev->name);
		}
		else if(status & TCMD_MAXCOLL) {
			printk("%s: Max. collisions exceeded.\n",dev->name);
			dev->stats.collisions += 16;
		}
	}

#if (NUM_XMIT_BUFFS > 1)
	if( (++p->xmit_last) == NUM_XMIT_BUFFS)
		p->xmit_last = 0;
#endif
	netif_wake_queue(dev);
}

/***********************************************************
 * (re)start the receiver
 */

static void startrecv586(struct net_device *dev)
{
	struct priv *p = netdev_priv(dev);

	WAIT_4_SCB_CMD();
	WAIT_4_SCB_CMD_RUC();
	p->scb->rfa_offset = make16(p->rfd_first);
	p->scb->cmd_ruc = RUC_START;
	sun3_attn586();		/* start cmd. */
	WAIT_4_SCB_CMD_RUC();	/* wait for accept cmd. (no timeout!!) */
}

static void sun3_82586_timeout(struct net_device *dev, unsigned int txqueue)
{
	struct priv *p = netdev_priv(dev);
#ifndef NO_NOPCOMMANDS
	if(p->scb->cus & CU_ACTIVE) /* COMMAND-UNIT active? */
	{
		netif_wake_queue(dev);
#ifdef DEBUG
		printk("%s: strange ... timeout with CU active?!?\n",dev->name);
		printk("%s: X0: %04x N0: %04x N1: %04x %d\n",dev->name,(int)swab16(p->xmit_cmds[0]->cmd_status),(int)swab16(p->nop_cmds[0]->cmd_status),(int)swab16(p->nop_cmds[1]->cmd_status),(int)p->nop_point);
#endif
		p->scb->cmd_cuc = CUC_ABORT;
		sun3_attn586();
		WAIT_4_SCB_CMD();
		p->scb->cbl_offset = make16(p->nop_cmds[p->nop_point]);
		p->scb->cmd_cuc = CUC_START;
		sun3_attn586();
		WAIT_4_SCB_CMD();
		netif_trans_update(dev); /* prevent tx timeout */
		return 0;
	}
#endif
	{
#ifdef DEBUG
		printk("%s: xmitter timed out, try to restart! stat: %02x\n",dev->name,p->scb->cus);
		printk("%s: command-stats: %04x\n", dev->name, swab16(p->xmit_cmds[0]->cmd_status));
		printk("%s: check, whether you set the right interrupt number!\n",dev->name);
#endif
		sun3_82586_close(dev);
		sun3_82586_open(dev);
	}
	netif_trans_update(dev); /* prevent tx timeout */
}

/******************************************************
 * send frame
 */

static netdev_tx_t
sun3_82586_send_packet(struct sk_buff *skb, struct net_device *dev)
{
	int len,i;
#ifndef NO_NOPCOMMANDS
	int next_nop;
#endif
	struct priv *p = netdev_priv(dev);

	if(skb->len > XMIT_BUFF_SIZE)
	{
		printk("%s: Sorry, max. framelength is %d bytes. The length of your frame is %d bytes.\n",dev->name,XMIT_BUFF_SIZE,skb->len);
		return NETDEV_TX_OK;
	}

	netif_stop_queue(dev);

#if(NUM_XMIT_BUFFS > 1)
	if(test_and_set_bit(0,(void *) &p->lock)) {
		printk("%s: Queue was locked\n",dev->name);
		return NETDEV_TX_BUSY;
	}
	else
#endif
	{
		len = skb->len;
		if (len < ETH_ZLEN) {
			memset((void *)p->xmit_cbuffs[p->xmit_count], 0,
			       ETH_ZLEN);
			len = ETH_ZLEN;
		}
		skb_copy_from_linear_data(skb, (void *)p->xmit_cbuffs[p->xmit_count], skb->len);

#if (NUM_XMIT_BUFFS == 1)
#	ifdef NO_NOPCOMMANDS

#ifdef DEBUG
		if(p->scb->cus & CU_ACTIVE)
		{
			printk("%s: Hmmm .. CU is still running and we wanna send a new packet.\n",dev->name);
			printk("%s: stat: %04x %04x\n",dev->name,p->scb->cus,swab16(p->xmit_cmds[0]->cmd_status));
		}
#endif

		p->xmit_buffs[0]->size = swab16(TBD_LAST | len);
		for(i=0;i<16;i++)
		{
			p->xmit_cmds[0]->cmd_status = 0;
			WAIT_4_SCB_CMD();
			if( (p->scb->cus & CU_STATUS) == CU_SUSPEND)
				p->scb->cmd_cuc = CUC_RESUME;
			else
			{
				p->scb->cbl_offset = make16(p->xmit_cmds[0]);
				p->scb->cmd_cuc = CUC_START;
			}

			sun3_attn586();
			if(!i)
				dev_kfree_skb(skb);
			WAIT_4_SCB_CMD();
			if( (p->scb->cus & CU_ACTIVE)) /* test it, because CU sometimes doesn't start immediately */
				break;
			if(p->xmit_cmds[0]->cmd_status)
				break;
			if(i==15)
				printk("%s: Can't start transmit-command.\n",dev->name);
		}
#	else
		next_nop = (p->nop_point + 1) & 0x1;
		p->xmit_buffs[0]->size = swab16(TBD_LAST | len);

		p->xmit_cmds[0]->cmd_link	 = p->nop_cmds[next_nop]->cmd_link
			= make16((p->nop_cmds[next_nop]));
		p->xmit_cmds[0]->cmd_status = p->nop_cmds[next_nop]->cmd_status = 0;

		p->nop_cmds[p->nop_point]->cmd_link = make16((p->xmit_cmds[0]));
		p->nop_point = next_nop;
		dev_kfree_skb(skb);
#	endif
#else
		p->xmit_buffs[p->xmit_count]->size = swab16(TBD_LAST | len);
		if( (next_nop = p->xmit_count + 1) == NUM_XMIT_BUFFS )
			next_nop = 0;

		p->xmit_cmds[p->xmit_count]->cmd_status	= 0;
		/* linkpointer of xmit-command already points to next nop cmd */
		p->nop_cmds[next_nop]->cmd_link = make16((p->nop_cmds[next_nop]));
		p->nop_cmds[next_nop]->cmd_status = 0;

		p->nop_cmds[p->xmit_count]->cmd_link = make16((p->xmit_cmds[p->xmit_count]));
		p->xmit_count = next_nop;

		{
			unsigned long flags;
			local_irq_save(flags);
			if(p->xmit_count != p->xmit_last)
				netif_wake_queue(dev);
			p->lock = 0;
			local_irq_restore(flags);
		}
		dev_kfree_skb(skb);
#endif
	}
	return NETDEV_TX_OK;
}

/*******************************************
 * Someone wanna have the statistics
 */

static struct net_device_stats *sun3_82586_get_stats(struct net_device *dev)
{
	struct priv *p = netdev_priv(dev);
	unsigned short crc,aln,rsc,ovrn;

	crc = swab16(p->scb->crc_errs); /* get error-statistic from the ni82586 */
	p->scb->crc_errs = 0;
	aln = swab16(p->scb->aln_errs);
	p->scb->aln_errs = 0;
	rsc = swab16(p->scb->rsc_errs);
	p->scb->rsc_errs = 0;
	ovrn = swab16(p->scb->ovrn_errs);
	p->scb->ovrn_errs = 0;

	dev->stats.rx_crc_errors += crc;
	dev->stats.rx_fifo_errors += ovrn;
	dev->stats.rx_frame_errors += aln;
	dev->stats.rx_dropped += rsc;

	return &dev->stats;
}

/********************************************************
 * Set MC list ..
 */

static void set_multicast_list(struct net_device *dev)
{
	netif_stop_queue(dev);
	sun3_disint();
	alloc586(dev);
	init586(dev);
	startrecv586(dev);
	sun3_enaint();
	netif_wake_queue(dev);
}

#if 0
/*
 * DUMP .. we expect a not running CMD unit and enough space
 */
void sun3_82586_dump(struct net_device *dev,void *ptr)
{
	struct priv *p = netdev_priv(dev);
	struct dump_cmd_struct *dump_cmd = (struct dump_cmd_struct *) ptr;
	int i;

	p->scb->cmd_cuc = CUC_ABORT;
	sun3_attn586();
	WAIT_4_SCB_CMD();
	WAIT_4_SCB_CMD_RUC();

	dump_cmd->cmd_status = 0;
	dump_cmd->cmd_cmd = CMD_DUMP | CMD_LAST;
	dump_cmd->dump_offset = make16((dump_cmd + 1));
	dump_cmd->cmd_link = 0xffff;

	p->scb->cbl_offset = make16(dump_cmd);
	p->scb->cmd_cuc = CUC_START;
	sun3_attn586();
	WAIT_4_STAT_COMPL(dump_cmd);

	if( (dump_cmd->cmd_status & (STAT_COMPL|STAT_OK)) != (STAT_COMPL|STAT_OK) )
				printk("%s: Can't get dump information.\n",dev->name);

	for(i=0;i<170;i++) {
		printk("%02x ",(int) ((unsigned char *) (dump_cmd + 1))[i]);
		if(i % 24 == 23)
			printk("\n");
	}
	printk("\n");
}
#endif