sun3_82586: convert to net_device_ops
[linux-2.6.git] / drivers / net / sun3_82586.c
1 /*
2  * Sun3 i82586 Ethernet driver
3  *
4  * Cloned from ni52.c for the Sun3 by Sam Creasey (sammy@sammy.net)
5  *
6  * Original copyright follows:
7  * --------------------------
8  *
9  * net-3-driver for the NI5210 card (i82586 Ethernet chip)
10  *
11  * This is an extension to the Linux operating system, and is covered by the
12  * same Gnu Public License that covers that work.
13  *
14  * Alphacode 0.82 (96/09/29) for Linux 2.0.0 (or later)
15  * Copyrights (c) 1994,1995,1996 by M.Hipp (hippm@informatik.uni-tuebingen.de)
16  * --------------------------
17  *
18  * Consult ni52.c for further notes from the original driver.
19  *
20  * This incarnation currently supports the OBIO version of the i82586 chip
21  * used in certain sun3 models.  It should be fairly doable to expand this
22  * to support VME if I should every acquire such a board.
23  *
24  */
25
26 static int debuglevel = 0; /* debug-printk 0: off 1: a few 2: more */
27 static int automatic_resume = 0; /* experimental .. better should be zero */
28 static int rfdadd = 0; /* rfdadd=1 may be better for 8K MEM cards */
29 static int fifo=0x8;    /* don't change */
30
31 #include <linux/module.h>
32 #include <linux/kernel.h>
33 #include <linux/string.h>
34 #include <linux/errno.h>
35 #include <linux/ioport.h>
36 #include <linux/slab.h>
37 #include <linux/interrupt.h>
38 #include <linux/delay.h>
39 #include <linux/init.h>
40 #include <linux/bitops.h>
41 #include <asm/io.h>
42 #include <asm/idprom.h>
43 #include <asm/machines.h>
44 #include <asm/sun3mmu.h>
45 #include <asm/dvma.h>
46 #include <asm/byteorder.h>
47
48 #include <linux/netdevice.h>
49 #include <linux/etherdevice.h>
50 #include <linux/skbuff.h>
51
52 #include "sun3_82586.h"
53
54 #define DRV_NAME "sun3_82586"
55
56 #define DEBUG       /* debug on */
57 #define SYSBUSVAL 0 /* 16 Bit */
58 #define SUN3_82586_TOTAL_SIZE   PAGE_SIZE
59
60 #define sun3_attn586()  {*(volatile unsigned char *)(dev->base_addr) |= IEOB_ATTEN; *(volatile unsigned char *)(dev->base_addr) &= ~IEOB_ATTEN;}
61 #define sun3_reset586() {*(volatile unsigned char *)(dev->base_addr) = 0; udelay(100); *(volatile unsigned char *)(dev->base_addr) = IEOB_NORSET;}
62 #define sun3_disint()   {*(volatile unsigned char *)(dev->base_addr) &= ~IEOB_IENAB;}
63 #define sun3_enaint()   {*(volatile unsigned char *)(dev->base_addr) |= IEOB_IENAB;}
64 #define sun3_active()   {*(volatile unsigned char *)(dev->base_addr) |= (IEOB_IENAB|IEOB_ONAIR|IEOB_NORSET);}
65
66 #define make32(ptr16) (p->memtop + (swab16((unsigned short) (ptr16))) )
67 #define make24(ptr32) (char *)swab32(( ((unsigned long) (ptr32)) - p->base))
68 #define make16(ptr32) (swab16((unsigned short) ((unsigned long)(ptr32) - (unsigned long) p->memtop )))
69
70 /******************* how to calculate the buffers *****************************
71
72   * IMPORTANT NOTE: if you configure only one NUM_XMIT_BUFFS, the driver works
73   * --------------- in a different (more stable?) mode. Only in this mode it's
74   *                 possible to configure the driver with 'NO_NOPCOMMANDS'
75
76 sizeof(scp)=12; sizeof(scb)=16; sizeof(iscp)=8;
77 sizeof(scp)+sizeof(iscp)+sizeof(scb) = 36 = INIT
78 sizeof(rfd) = 24; sizeof(rbd) = 12;
79 sizeof(tbd) = 8; sizeof(transmit_cmd) = 16;
80 sizeof(nop_cmd) = 8;
81
82   * if you don't know the driver, better do not change these values: */
83
84 #define RECV_BUFF_SIZE 1536 /* slightly oversized */
85 #define XMIT_BUFF_SIZE 1536 /* slightly oversized */
86 #define NUM_XMIT_BUFFS 1    /* config for 32K shmem */
87 #define NUM_RECV_BUFFS_8 4 /* config for 32K shared mem */
88 #define NUM_RECV_BUFFS_16 9 /* config for 32K shared mem */
89 #define NUM_RECV_BUFFS_32 16 /* config for 32K shared mem */
90 #define NO_NOPCOMMANDS      /* only possible with NUM_XMIT_BUFFS=1 */
91
92 /**************************************************************************/
93
94 /* different DELAYs */
95 #define DELAY(x) mdelay(32 * x);
96 #define DELAY_16(); { udelay(16); }
97 #define DELAY_18(); { udelay(4); }
98
99 /* wait for command with timeout: */
100 #define WAIT_4_SCB_CMD() \
101 { int i; \
102   for(i=0;i<16384;i++) { \
103     if(!p->scb->cmd_cuc) break; \
104     DELAY_18(); \
105     if(i == 16383) { \
106       printk("%s: scb_cmd timed out: %04x,%04x .. disabling i82586!!\n",dev->name,p->scb->cmd_cuc,p->scb->cus); \
107        if(!p->reseted) { p->reseted = 1; sun3_reset586(); } } } }
108
109 #define WAIT_4_SCB_CMD_RUC() { int i; \
110   for(i=0;i<16384;i++) { \
111     if(!p->scb->cmd_ruc) break; \
112     DELAY_18(); \
113     if(i == 16383) { \
114       printk("%s: scb_cmd (ruc) timed out: %04x,%04x .. disabling i82586!!\n",dev->name,p->scb->cmd_ruc,p->scb->rus); \
115        if(!p->reseted) { p->reseted = 1; sun3_reset586(); } } } }
116
117 #define WAIT_4_STAT_COMPL(addr) { int i; \
118    for(i=0;i<32767;i++) { \
119      if(swab16((addr)->cmd_status) & STAT_COMPL) break; \
120      DELAY_16(); DELAY_16(); } }
121
122 static int     sun3_82586_probe1(struct net_device *dev,int ioaddr);
123 static irqreturn_t sun3_82586_interrupt(int irq,void *dev_id);
124 static int     sun3_82586_open(struct net_device *dev);
125 static int     sun3_82586_close(struct net_device *dev);
126 static int     sun3_82586_send_packet(struct sk_buff *,struct net_device *);
127 static struct  net_device_stats *sun3_82586_get_stats(struct net_device *dev);
128 static void    set_multicast_list(struct net_device *dev);
129 static void    sun3_82586_timeout(struct net_device *dev);
130 #if 0
131 static void    sun3_82586_dump(struct net_device *,void *);
132 #endif
133
134 /* helper-functions */
135 static int     init586(struct net_device *dev);
136 static int     check586(struct net_device *dev,char *where,unsigned size);
137 static void    alloc586(struct net_device *dev);
138 static void    startrecv586(struct net_device *dev);
139 static void   *alloc_rfa(struct net_device *dev,void *ptr);
140 static void    sun3_82586_rcv_int(struct net_device *dev);
141 static void    sun3_82586_xmt_int(struct net_device *dev);
142 static void    sun3_82586_rnr_int(struct net_device *dev);
143
144 struct priv
145 {
146         struct net_device_stats stats;
147         unsigned long base;
148         char *memtop;
149         long int lock;
150         int reseted;
151         volatile struct rfd_struct      *rfd_last,*rfd_top,*rfd_first;
152         volatile struct scp_struct      *scp;   /* volatile is important */
153         volatile struct iscp_struct     *iscp;  /* volatile is important */
154         volatile struct scb_struct      *scb;   /* volatile is important */
155         volatile struct tbd_struct      *xmit_buffs[NUM_XMIT_BUFFS];
156         volatile struct transmit_cmd_struct *xmit_cmds[NUM_XMIT_BUFFS];
157 #if (NUM_XMIT_BUFFS == 1)
158         volatile struct nop_cmd_struct *nop_cmds[2];
159 #else
160         volatile struct nop_cmd_struct *nop_cmds[NUM_XMIT_BUFFS];
161 #endif
162         volatile int            nop_point,num_recv_buffs;
163         volatile char           *xmit_cbuffs[NUM_XMIT_BUFFS];
164         volatile int            xmit_count,xmit_last;
165 };
166
167 /**********************************************
168  * close device
169  */
170 static int sun3_82586_close(struct net_device *dev)
171 {
172         free_irq(dev->irq, dev);
173
174         sun3_reset586(); /* the hard way to stop the receiver */
175
176         netif_stop_queue(dev);
177
178         return 0;
179 }
180
181 /**********************************************
182  * open device
183  */
184 static int sun3_82586_open(struct net_device *dev)
185 {
186         int ret;
187
188         sun3_disint();
189         alloc586(dev);
190         init586(dev);
191         startrecv586(dev);
192         sun3_enaint();
193
194         ret = request_irq(dev->irq, &sun3_82586_interrupt,0,dev->name,dev);
195         if (ret)
196         {
197                 sun3_reset586();
198                 return ret;
199         }
200
201         netif_start_queue(dev);
202
203         return 0; /* most done by init */
204 }
205
206 /**********************************************
207  * Check to see if there's an 82586 out there.
208  */
209 static int check586(struct net_device *dev,char *where,unsigned size)
210 {
211         struct priv pb;
212         struct priv *p = &pb;
213         char *iscp_addr;
214         int i;
215
216         p->base = (unsigned long) dvma_btov(0);
217         p->memtop = (char *)dvma_btov((unsigned long)where);
218         p->scp = (struct scp_struct *)(p->base + SCP_DEFAULT_ADDRESS);
219         memset((char *)p->scp,0, sizeof(struct scp_struct));
220         for(i=0;i<sizeof(struct scp_struct);i++) /* memory was writeable? */
221                 if(((char *)p->scp)[i])
222                         return 0;
223         p->scp->sysbus = SYSBUSVAL;                             /* 1 = 8Bit-Bus, 0 = 16 Bit */
224         if(p->scp->sysbus != SYSBUSVAL)
225                 return 0;
226
227         iscp_addr = (char *)dvma_btov((unsigned long)where);
228
229         p->iscp = (struct iscp_struct *) iscp_addr;
230         memset((char *)p->iscp,0, sizeof(struct iscp_struct));
231
232         p->scp->iscp = make24(p->iscp);
233         p->iscp->busy = 1;
234
235         sun3_reset586();
236         sun3_attn586();
237         DELAY(1);       /* wait a while... */
238
239         if(p->iscp->busy) /* i82586 clears 'busy' after successful init */
240                 return 0;
241
242         return 1;
243 }
244
245 /******************************************************************
246  * set iscp at the right place, called by sun3_82586_probe1 and open586.
247  */
248 static void alloc586(struct net_device *dev)
249 {
250         struct priv *p = netdev_priv(dev);
251
252         sun3_reset586();
253         DELAY(1);
254
255         p->scp  = (struct scp_struct *) (p->base + SCP_DEFAULT_ADDRESS);
256         p->iscp = (struct iscp_struct *) dvma_btov(dev->mem_start);
257         p->scb  = (struct scb_struct *)  ((char *)p->iscp + sizeof(struct iscp_struct));
258
259         memset((char *) p->iscp,0,sizeof(struct iscp_struct));
260         memset((char *) p->scp ,0,sizeof(struct scp_struct));
261
262         p->scp->iscp = make24(p->iscp);
263         p->scp->sysbus = SYSBUSVAL;
264         p->iscp->scb_offset = make16(p->scb);
265         p->iscp->scb_base = make24(dvma_btov(dev->mem_start));
266
267         p->iscp->busy = 1;
268         sun3_reset586();
269         sun3_attn586();
270
271         DELAY(1);
272
273         if(p->iscp->busy)
274                 printk("%s: Init-Problems (alloc).\n",dev->name);
275
276         p->reseted = 0;
277
278         memset((char *)p->scb,0,sizeof(struct scb_struct));
279 }
280
281 struct net_device * __init sun3_82586_probe(int unit)
282 {
283         struct net_device *dev;
284         unsigned long ioaddr;
285         static int found = 0;
286         int err = -ENOMEM;
287
288         /* check that this machine has an onboard 82586 */
289         switch(idprom->id_machtype) {
290         case SM_SUN3|SM_3_160:
291         case SM_SUN3|SM_3_260:
292                 /* these machines have 82586 */
293                 break;
294
295         default:
296                 return ERR_PTR(-ENODEV);
297         }
298
299         if (found)
300                 return ERR_PTR(-ENODEV);
301
302         ioaddr = (unsigned long)ioremap(IE_OBIO, SUN3_82586_TOTAL_SIZE);
303         if (!ioaddr)
304                 return ERR_PTR(-ENOMEM);
305         found = 1;
306
307         dev = alloc_etherdev(sizeof(struct priv));
308         if (!dev)
309                 goto out;
310         if (unit >= 0) {
311                 sprintf(dev->name, "eth%d", unit);
312                 netdev_boot_setup_check(dev);
313         }
314
315         dev->irq = IE_IRQ;
316         dev->base_addr = ioaddr;
317         err = sun3_82586_probe1(dev, ioaddr);
318         if (err)
319                 goto out1;
320         err = register_netdev(dev);
321         if (err)
322                 goto out2;
323         return dev;
324
325 out2:
326         release_region(ioaddr, SUN3_82586_TOTAL_SIZE);
327 out1:
328         free_netdev(dev);
329 out:
330         iounmap((void __iomem *)ioaddr);
331         return ERR_PTR(err);
332 }
333
334 static const struct net_device_ops sun3_82586_netdev_ops = {
335         .ndo_open               = sun3_82586_open,
336         .ndo_stop               = sun3_82586_close,
337         .ndo_start_xmit         = sun3_82586_send_packet,
338         .ndo_set_multicast_list = set_multicast_list,
339         .ndo_tx_timeout         = sun3_82586_timeout,
340         .ndo_get_stats          = sun3_82586_get_stats,
341         .ndo_validate_addr      = eth_validate_addr,
342         .ndo_set_mac_address    = eth_mac_addr,
343         .ndo_change_mtu         = eth_change_mtu,
344 };
345
346 static int __init sun3_82586_probe1(struct net_device *dev,int ioaddr)
347 {
348         int i, size, retval;
349
350         if (!request_region(ioaddr, SUN3_82586_TOTAL_SIZE, DRV_NAME))
351                 return -EBUSY;
352
353         /* copy in the ethernet address from the prom */
354         for(i = 0; i < 6 ; i++)
355              dev->dev_addr[i] = idprom->id_ethaddr[i];
356
357         printk("%s: SUN3 Intel 82586 found at %lx, ",dev->name,dev->base_addr);
358
359         /*
360          * check (or search) IO-Memory, 32K
361          */
362         size = 0x8000;
363
364         dev->mem_start = (unsigned long)dvma_malloc_align(0x8000, 0x1000);
365         dev->mem_end = dev->mem_start + size;
366
367         if(size != 0x2000 && size != 0x4000 && size != 0x8000) {
368                 printk("\n%s: Illegal memory size %d. Allowed is 0x2000 or 0x4000 or 0x8000 bytes.\n",dev->name,size);
369                 retval = -ENODEV;
370                 goto out;
371         }
372         if(!check586(dev,(char *) dev->mem_start,size)) {
373                 printk("?memcheck, Can't find memory at 0x%lx with size %d!\n",dev->mem_start,size);
374                 retval = -ENODEV;
375                 goto out;
376         }
377
378         ((struct priv *)netdev_priv(dev))->memtop =
379                                         (char *)dvma_btov(dev->mem_start);
380         ((struct priv *)netdev_priv(dev))->base = (unsigned long) dvma_btov(0);
381         alloc586(dev);
382
383         /* set number of receive-buffs according to memsize */
384         if(size == 0x2000)
385                 ((struct priv *)netdev_priv(dev))->num_recv_buffs =
386                                                         NUM_RECV_BUFFS_8;
387         else if(size == 0x4000)
388                 ((struct priv *)netdev_priv(dev))->num_recv_buffs =
389                                                         NUM_RECV_BUFFS_16;
390         else
391                 ((struct priv *)netdev_priv(dev))->num_recv_buffs =
392                                                         NUM_RECV_BUFFS_32;
393
394         printk("Memaddr: 0x%lx, Memsize: %d, IRQ %d\n",dev->mem_start,size, dev->irq);
395
396         dev->netdev_ops         = &sun3_82586_netdev_ops;
397         dev->watchdog_timeo     = HZ/20;
398
399         dev->if_port            = 0;
400         return 0;
401 out:
402         release_region(ioaddr, SUN3_82586_TOTAL_SIZE);
403         return retval;
404 }
405
406
407 static int init586(struct net_device *dev)
408 {
409         void *ptr;
410         int i,result=0;
411         struct priv *p = netdev_priv(dev);
412         volatile struct configure_cmd_struct    *cfg_cmd;
413         volatile struct iasetup_cmd_struct *ias_cmd;
414         volatile struct tdr_cmd_struct *tdr_cmd;
415         volatile struct mcsetup_cmd_struct *mc_cmd;
416         struct dev_mc_list *dmi=dev->mc_list;
417         int num_addrs=dev->mc_count;
418
419         ptr = (void *) ((char *)p->scb + sizeof(struct scb_struct));
420
421         cfg_cmd = (struct configure_cmd_struct *)ptr; /* configure-command */
422         cfg_cmd->cmd_status     = 0;
423         cfg_cmd->cmd_cmd        = swab16(CMD_CONFIGURE | CMD_LAST);
424         cfg_cmd->cmd_link       = 0xffff;
425
426         cfg_cmd->byte_cnt       = 0x0a; /* number of cfg bytes */
427         cfg_cmd->fifo           = fifo; /* fifo-limit (8=tx:32/rx:64) */
428         cfg_cmd->sav_bf         = 0x40; /* hold or discard bad recv frames (bit 7) */
429         cfg_cmd->adr_len        = 0x2e; /* addr_len |!src_insert |pre-len |loopback */
430         cfg_cmd->priority       = 0x00;
431         cfg_cmd->ifs            = 0x60;
432         cfg_cmd->time_low       = 0x00;
433         cfg_cmd->time_high      = 0xf2;
434         cfg_cmd->promisc        = 0;
435         if(dev->flags & IFF_ALLMULTI) {
436                 int len = ((char *) p->iscp - (char *) ptr - 8) / 6;
437                 if(num_addrs > len)     {
438                         printk("%s: switching to promisc. mode\n",dev->name);
439                         cfg_cmd->promisc = 1;
440                 }
441         }
442         if(dev->flags&IFF_PROMISC)
443                 cfg_cmd->promisc = 1;
444         cfg_cmd->carr_coll      = 0x00;
445
446         p->scb->cbl_offset      = make16(cfg_cmd);
447         p->scb->cmd_ruc         = 0;
448
449         p->scb->cmd_cuc         = CUC_START; /* cmd.-unit start */
450         sun3_attn586();
451
452         WAIT_4_STAT_COMPL(cfg_cmd);
453
454         if((swab16(cfg_cmd->cmd_status) & (STAT_OK|STAT_COMPL)) != (STAT_COMPL|STAT_OK))
455         {
456                 printk("%s: configure command failed: %x\n",dev->name,swab16(cfg_cmd->cmd_status));
457                 return 1;
458         }
459
460         /*
461          * individual address setup
462          */
463
464         ias_cmd = (struct iasetup_cmd_struct *)ptr;
465
466         ias_cmd->cmd_status     = 0;
467         ias_cmd->cmd_cmd        = swab16(CMD_IASETUP | CMD_LAST);
468         ias_cmd->cmd_link       = 0xffff;
469
470         memcpy((char *)&ias_cmd->iaddr,(char *) dev->dev_addr,ETH_ALEN);
471
472         p->scb->cbl_offset = make16(ias_cmd);
473
474         p->scb->cmd_cuc = CUC_START; /* cmd.-unit start */
475         sun3_attn586();
476
477         WAIT_4_STAT_COMPL(ias_cmd);
478
479         if((swab16(ias_cmd->cmd_status) & (STAT_OK|STAT_COMPL)) != (STAT_OK|STAT_COMPL)) {
480                 printk("%s (82586): individual address setup command failed: %04x\n",dev->name,swab16(ias_cmd->cmd_status));
481                 return 1;
482         }
483
484         /*
485          * TDR, wire check .. e.g. no resistor e.t.c
486          */
487
488         tdr_cmd = (struct tdr_cmd_struct *)ptr;
489
490         tdr_cmd->cmd_status     = 0;
491         tdr_cmd->cmd_cmd        = swab16(CMD_TDR | CMD_LAST);
492         tdr_cmd->cmd_link       = 0xffff;
493         tdr_cmd->status         = 0;
494
495         p->scb->cbl_offset = make16(tdr_cmd);
496         p->scb->cmd_cuc = CUC_START; /* cmd.-unit start */
497         sun3_attn586();
498
499         WAIT_4_STAT_COMPL(tdr_cmd);
500
501         if(!(swab16(tdr_cmd->cmd_status) & STAT_COMPL))
502         {
503                 printk("%s: Problems while running the TDR.\n",dev->name);
504         }
505         else
506         {
507                 DELAY_16(); /* wait for result */
508                 result = swab16(tdr_cmd->status);
509
510                 p->scb->cmd_cuc = p->scb->cus & STAT_MASK;
511                 sun3_attn586(); /* ack the interrupts */
512
513                 if(result & TDR_LNK_OK)
514                         ;
515                 else if(result & TDR_XCVR_PRB)
516                         printk("%s: TDR: Transceiver problem. Check the cable(s)!\n",dev->name);
517                 else if(result & TDR_ET_OPN)
518                         printk("%s: TDR: No correct termination %d clocks away.\n",dev->name,result & TDR_TIMEMASK);
519                 else if(result & TDR_ET_SRT)
520                 {
521                         if (result & TDR_TIMEMASK) /* time == 0 -> strange :-) */
522                                 printk("%s: TDR: Detected a short circuit %d clocks away.\n",dev->name,result & TDR_TIMEMASK);
523                 }
524                 else
525                         printk("%s: TDR: Unknown status %04x\n",dev->name,result);
526         }
527
528         /*
529          * Multicast setup
530          */
531         if(num_addrs && !(dev->flags & IFF_PROMISC) )
532         {
533                 mc_cmd = (struct mcsetup_cmd_struct *) ptr;
534                 mc_cmd->cmd_status = 0;
535                 mc_cmd->cmd_cmd = swab16(CMD_MCSETUP | CMD_LAST);
536                 mc_cmd->cmd_link = 0xffff;
537                 mc_cmd->mc_cnt = swab16(num_addrs * 6);
538
539                 for(i=0;i<num_addrs;i++,dmi=dmi->next)
540                         memcpy((char *) mc_cmd->mc_list[i], dmi->dmi_addr,6);
541
542                 p->scb->cbl_offset = make16(mc_cmd);
543                 p->scb->cmd_cuc = CUC_START;
544                 sun3_attn586();
545
546                 WAIT_4_STAT_COMPL(mc_cmd);
547
548                 if( (swab16(mc_cmd->cmd_status) & (STAT_COMPL|STAT_OK)) != (STAT_COMPL|STAT_OK) )
549                         printk("%s: Can't apply multicast-address-list.\n",dev->name);
550         }
551
552         /*
553          * alloc nop/xmit-cmds
554          */
555 #if (NUM_XMIT_BUFFS == 1)
556         for(i=0;i<2;i++)
557         {
558                 p->nop_cmds[i]                  = (struct nop_cmd_struct *)ptr;
559                 p->nop_cmds[i]->cmd_cmd         = swab16(CMD_NOP);
560                 p->nop_cmds[i]->cmd_status      = 0;
561                 p->nop_cmds[i]->cmd_link        = make16((p->nop_cmds[i]));
562                 ptr = (char *) ptr + sizeof(struct nop_cmd_struct);
563         }
564 #else
565         for(i=0;i<NUM_XMIT_BUFFS;i++)
566         {
567                 p->nop_cmds[i]                  = (struct nop_cmd_struct *)ptr;
568                 p->nop_cmds[i]->cmd_cmd         = swab16(CMD_NOP);
569                 p->nop_cmds[i]->cmd_status      = 0;
570                 p->nop_cmds[i]->cmd_link        = make16((p->nop_cmds[i]));
571                 ptr = (char *) ptr + sizeof(struct nop_cmd_struct);
572         }
573 #endif
574
575         ptr = alloc_rfa(dev,(void *)ptr); /* init receive-frame-area */
576
577         /*
578          * alloc xmit-buffs / init xmit_cmds
579          */
580         for(i=0;i<NUM_XMIT_BUFFS;i++)
581         {
582                 p->xmit_cmds[i] = (struct transmit_cmd_struct *)ptr; /*transmit cmd/buff 0*/
583                 ptr = (char *) ptr + sizeof(struct transmit_cmd_struct);
584                 p->xmit_cbuffs[i] = (char *)ptr; /* char-buffs */
585                 ptr = (char *) ptr + XMIT_BUFF_SIZE;
586                 p->xmit_buffs[i] = (struct tbd_struct *)ptr; /* TBD */
587                 ptr = (char *) ptr + sizeof(struct tbd_struct);
588                 if((void *)ptr > (void *)dev->mem_end)
589                 {
590                         printk("%s: not enough shared-mem for your configuration!\n",dev->name);
591                         return 1;
592                 }
593                 memset((char *)(p->xmit_cmds[i]) ,0, sizeof(struct transmit_cmd_struct));
594                 memset((char *)(p->xmit_buffs[i]),0, sizeof(struct tbd_struct));
595                 p->xmit_cmds[i]->cmd_link = make16(p->nop_cmds[(i+1)%NUM_XMIT_BUFFS]);
596                 p->xmit_cmds[i]->cmd_status = swab16(STAT_COMPL);
597                 p->xmit_cmds[i]->cmd_cmd = swab16(CMD_XMIT | CMD_INT);
598                 p->xmit_cmds[i]->tbd_offset = make16((p->xmit_buffs[i]));
599                 p->xmit_buffs[i]->next = 0xffff;
600                 p->xmit_buffs[i]->buffer = make24((p->xmit_cbuffs[i]));
601         }
602
603         p->xmit_count = 0;
604         p->xmit_last    = 0;
605 #ifndef NO_NOPCOMMANDS
606         p->nop_point    = 0;
607 #endif
608
609          /*
610                 * 'start transmitter'
611                 */
612 #ifndef NO_NOPCOMMANDS
613         p->scb->cbl_offset = make16(p->nop_cmds[0]);
614         p->scb->cmd_cuc = CUC_START;
615         sun3_attn586();
616         WAIT_4_SCB_CMD();
617 #else
618         p->xmit_cmds[0]->cmd_link = make16(p->xmit_cmds[0]);
619         p->xmit_cmds[0]->cmd_cmd        = swab16(CMD_XMIT | CMD_SUSPEND | CMD_INT);
620 #endif
621
622         /*
623          * ack. interrupts
624          */
625         p->scb->cmd_cuc = p->scb->cus & STAT_MASK;
626         sun3_attn586();
627         DELAY_16();
628
629         sun3_enaint();
630         sun3_active();
631
632         return 0;
633 }
634
635 /******************************************************
636  * This is a helper routine for sun3_82586_rnr_int() and init586().
637  * It sets up the Receive Frame Area (RFA).
638  */
639
640 static void *alloc_rfa(struct net_device *dev,void *ptr)
641 {
642         volatile struct rfd_struct *rfd = (struct rfd_struct *)ptr;
643         volatile struct rbd_struct *rbd;
644         int i;
645         struct priv *p = netdev_priv(dev);
646
647         memset((char *) rfd,0,sizeof(struct rfd_struct)*(p->num_recv_buffs+rfdadd));
648         p->rfd_first = rfd;
649
650         for(i = 0; i < (p->num_recv_buffs+rfdadd); i++) {
651                 rfd[i].next = make16(rfd + (i+1) % (p->num_recv_buffs+rfdadd) );
652                 rfd[i].rbd_offset = 0xffff;
653         }
654         rfd[p->num_recv_buffs-1+rfdadd].last = RFD_SUSP;         /* RU suspend */
655
656         ptr = (void *) (rfd + (p->num_recv_buffs + rfdadd) );
657
658         rbd = (struct rbd_struct *) ptr;
659         ptr = (void *) (rbd + p->num_recv_buffs);
660
661          /* clr descriptors */
662         memset((char *) rbd,0,sizeof(struct rbd_struct)*(p->num_recv_buffs));
663
664         for(i=0;i<p->num_recv_buffs;i++)
665         {
666                 rbd[i].next = make16((rbd + (i+1) % p->num_recv_buffs));
667                 rbd[i].size = swab16(RECV_BUFF_SIZE);
668                 rbd[i].buffer = make24(ptr);
669                 ptr = (char *) ptr + RECV_BUFF_SIZE;
670         }
671
672         p->rfd_top      = p->rfd_first;
673         p->rfd_last = p->rfd_first + (p->num_recv_buffs - 1 + rfdadd);
674
675         p->scb->rfa_offset              = make16(p->rfd_first);
676         p->rfd_first->rbd_offset        = make16(rbd);
677
678         return ptr;
679 }
680
681
682 /**************************************************
683  * Interrupt Handler ...
684  */
685
686 static irqreturn_t sun3_82586_interrupt(int irq,void *dev_id)
687 {
688         struct net_device *dev = dev_id;
689         unsigned short stat;
690         int cnt=0;
691         struct priv *p;
692
693         if (!dev) {
694                 printk ("sun3_82586-interrupt: irq %d for unknown device.\n",irq);
695                 return IRQ_NONE;
696         }
697         p = netdev_priv(dev);
698
699         if(debuglevel > 1)
700                 printk("I");
701
702         WAIT_4_SCB_CMD(); /* wait for last command      */
703
704         while((stat=p->scb->cus & STAT_MASK))
705         {
706                 p->scb->cmd_cuc = stat;
707                 sun3_attn586();
708
709                 if(stat & STAT_FR)       /* received a frame */
710                         sun3_82586_rcv_int(dev);
711
712                 if(stat & STAT_RNR) /* RU went 'not ready' */
713                 {
714                         printk("(R)");
715                         if(p->scb->rus & RU_SUSPEND) /* special case: RU_SUSPEND */
716                         {
717                                 WAIT_4_SCB_CMD();
718                                 p->scb->cmd_ruc = RUC_RESUME;
719                                 sun3_attn586();
720                                 WAIT_4_SCB_CMD_RUC();
721                         }
722                         else
723                         {
724                                 printk("%s: Receiver-Unit went 'NOT READY': %04x/%02x.\n",dev->name,(int) stat,(int) p->scb->rus);
725                                 sun3_82586_rnr_int(dev);
726                         }
727                 }
728
729                 if(stat & STAT_CX)              /* command with I-bit set complete */
730                          sun3_82586_xmt_int(dev);
731
732 #ifndef NO_NOPCOMMANDS
733                 if(stat & STAT_CNA)     /* CU went 'not ready' */
734                 {
735                         if(netif_running(dev))
736                                 printk("%s: oops! CU has left active state. stat: %04x/%02x.\n",dev->name,(int) stat,(int) p->scb->cus);
737                 }
738 #endif
739
740                 if(debuglevel > 1)
741                         printk("%d",cnt++);
742
743                 WAIT_4_SCB_CMD(); /* wait for ack. (sun3_82586_xmt_int can be faster than ack!!) */
744                 if(p->scb->cmd_cuc)      /* timed out? */
745                 {
746                         printk("%s: Acknowledge timed out.\n",dev->name);
747                         sun3_disint();
748                         break;
749                 }
750         }
751
752         if(debuglevel > 1)
753                 printk("i");
754         return IRQ_HANDLED;
755 }
756
757 /*******************************************************
758  * receive-interrupt
759  */
760
761 static void sun3_82586_rcv_int(struct net_device *dev)
762 {
763         int status,cnt=0;
764         unsigned short totlen;
765         struct sk_buff *skb;
766         struct rbd_struct *rbd;
767         struct priv *p = netdev_priv(dev);
768
769         if(debuglevel > 0)
770                 printk("R");
771
772         for(;(status = p->rfd_top->stat_high) & RFD_COMPL;)
773         {
774                         rbd = (struct rbd_struct *) make32(p->rfd_top->rbd_offset);
775
776                         if(status & RFD_OK) /* frame received without error? */
777                         {
778                                 if( (totlen = swab16(rbd->status)) & RBD_LAST) /* the first and the last buffer? */
779                                 {
780                                         totlen &= RBD_MASK; /* length of this frame */
781                                         rbd->status = 0;
782                                         skb = (struct sk_buff *) dev_alloc_skb(totlen+2);
783                                         if(skb != NULL)
784                                         {
785                                                 skb_reserve(skb,2);
786                                                 skb_put(skb,totlen);
787                                                 skb_copy_to_linear_data(skb,(char *) p->base+swab32((unsigned long) rbd->buffer),totlen);
788                                                 skb->protocol=eth_type_trans(skb,dev);
789                                                 netif_rx(skb);
790                                                 p->stats.rx_packets++;
791                                         }
792                                         else
793                                                 p->stats.rx_dropped++;
794                                 }
795                                 else
796                                 {
797                                         int rstat;
798                                                  /* free all RBD's until RBD_LAST is set */
799                                         totlen = 0;
800                                         while(!((rstat=swab16(rbd->status)) & RBD_LAST))
801                                         {
802                                                 totlen += rstat & RBD_MASK;
803                                                 if(!rstat)
804                                                 {
805                                                         printk("%s: Whoops .. no end mark in RBD list\n",dev->name);
806                                                         break;
807                                                 }
808                                                 rbd->status = 0;
809                                                 rbd = (struct rbd_struct *) make32(rbd->next);
810                                         }
811                                         totlen += rstat & RBD_MASK;
812                                         rbd->status = 0;
813                                         printk("%s: received oversized frame! length: %d\n",dev->name,totlen);
814                                         p->stats.rx_dropped++;
815                          }
816                 }
817                 else /* frame !(ok), only with 'save-bad-frames' */
818                 {
819                         printk("%s: oops! rfd-error-status: %04x\n",dev->name,status);
820                         p->stats.rx_errors++;
821                 }
822                 p->rfd_top->stat_high = 0;
823                 p->rfd_top->last = RFD_SUSP; /* maybe exchange by RFD_LAST */
824                 p->rfd_top->rbd_offset = 0xffff;
825                 p->rfd_last->last = 0;                          /* delete RFD_SUSP      */
826                 p->rfd_last = p->rfd_top;
827                 p->rfd_top = (struct rfd_struct *) make32(p->rfd_top->next); /* step to next RFD */
828                 p->scb->rfa_offset = make16(p->rfd_top);
829
830                 if(debuglevel > 0)
831                         printk("%d",cnt++);
832         }
833
834         if(automatic_resume)
835         {
836                 WAIT_4_SCB_CMD();
837                 p->scb->cmd_ruc = RUC_RESUME;
838                 sun3_attn586();
839                 WAIT_4_SCB_CMD_RUC();
840         }
841
842 #ifdef WAIT_4_BUSY
843         {
844                 int i;
845                 for(i=0;i<1024;i++)
846                 {
847                         if(p->rfd_top->status)
848                                 break;
849                         DELAY_16();
850                         if(i == 1023)
851                                 printk("%s: RU hasn't fetched next RFD (not busy/complete)\n",dev->name);
852                 }
853         }
854 #endif
855
856 #if 0
857         if(!at_least_one)
858         {
859                 int i;
860                 volatile struct rfd_struct *rfds=p->rfd_top;
861                 volatile struct rbd_struct *rbds;
862                 printk("%s: received a FC intr. without having a frame: %04x %d\n",dev->name,status,old_at_least);
863                 for(i=0;i< (p->num_recv_buffs+4);i++)
864                 {
865                         rbds = (struct rbd_struct *) make32(rfds->rbd_offset);
866                         printk("%04x:%04x ",rfds->status,rbds->status);
867                         rfds = (struct rfd_struct *) make32(rfds->next);
868                 }
869                 printk("\nerrs: %04x %04x stat: %04x\n",(int)p->scb->rsc_errs,(int)p->scb->ovrn_errs,(int)p->scb->status);
870                 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);
871         }
872         old_at_least = at_least_one;
873 #endif
874
875         if(debuglevel > 0)
876                 printk("r");
877 }
878
879 /**********************************************************
880  * handle 'Receiver went not ready'.
881  */
882
883 static void sun3_82586_rnr_int(struct net_device *dev)
884 {
885         struct priv *p = netdev_priv(dev);
886
887         p->stats.rx_errors++;
888
889         WAIT_4_SCB_CMD();               /* wait for the last cmd, WAIT_4_FULLSTAT?? */
890         p->scb->cmd_ruc = RUC_ABORT; /* usually the RU is in the 'no resource'-state .. abort it now. */
891         sun3_attn586();
892         WAIT_4_SCB_CMD_RUC();           /* wait for accept cmd. */
893
894         alloc_rfa(dev,(char *)p->rfd_first);
895 /* maybe add a check here, before restarting the RU */
896         startrecv586(dev); /* restart RU */
897
898         printk("%s: Receive-Unit restarted. Status: %04x\n",dev->name,p->scb->rus);
899
900 }
901
902 /**********************************************************
903  * handle xmit - interrupt
904  */
905
906 static void sun3_82586_xmt_int(struct net_device *dev)
907 {
908         int status;
909         struct priv *p = netdev_priv(dev);
910
911         if(debuglevel > 0)
912                 printk("X");
913
914         status = swab16(p->xmit_cmds[p->xmit_last]->cmd_status);
915         if(!(status & STAT_COMPL))
916                 printk("%s: strange .. xmit-int without a 'COMPLETE'\n",dev->name);
917
918         if(status & STAT_OK)
919         {
920                 p->stats.tx_packets++;
921                 p->stats.collisions += (status & TCMD_MAXCOLLMASK);
922         }
923         else
924         {
925                 p->stats.tx_errors++;
926                 if(status & TCMD_LATECOLL) {
927                         printk("%s: late collision detected.\n",dev->name);
928                         p->stats.collisions++;
929                 }
930                 else if(status & TCMD_NOCARRIER) {
931                         p->stats.tx_carrier_errors++;
932                         printk("%s: no carrier detected.\n",dev->name);
933                 }
934                 else if(status & TCMD_LOSTCTS)
935                         printk("%s: loss of CTS detected.\n",dev->name);
936                 else if(status & TCMD_UNDERRUN) {
937                         p->stats.tx_fifo_errors++;
938                         printk("%s: DMA underrun detected.\n",dev->name);
939                 }
940                 else if(status & TCMD_MAXCOLL) {
941                         printk("%s: Max. collisions exceeded.\n",dev->name);
942                         p->stats.collisions += 16;
943                 }
944         }
945
946 #if (NUM_XMIT_BUFFS > 1)
947         if( (++p->xmit_last) == NUM_XMIT_BUFFS)
948                 p->xmit_last = 0;
949 #endif
950         netif_wake_queue(dev);
951 }
952
953 /***********************************************************
954  * (re)start the receiver
955  */
956
957 static void startrecv586(struct net_device *dev)
958 {
959         struct priv *p = netdev_priv(dev);
960
961         WAIT_4_SCB_CMD();
962         WAIT_4_SCB_CMD_RUC();
963         p->scb->rfa_offset = make16(p->rfd_first);
964         p->scb->cmd_ruc = RUC_START;
965         sun3_attn586();         /* start cmd. */
966         WAIT_4_SCB_CMD_RUC();   /* wait for accept cmd. (no timeout!!) */
967 }
968
969 static void sun3_82586_timeout(struct net_device *dev)
970 {
971         struct priv *p = netdev_priv(dev);
972 #ifndef NO_NOPCOMMANDS
973         if(p->scb->cus & CU_ACTIVE) /* COMMAND-UNIT active? */
974         {
975                 netif_wake_queue(dev);
976 #ifdef DEBUG
977                 printk("%s: strange ... timeout with CU active?!?\n",dev->name);
978                 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);
979 #endif
980                 p->scb->cmd_cuc = CUC_ABORT;
981                 sun3_attn586();
982                 WAIT_4_SCB_CMD();
983                 p->scb->cbl_offset = make16(p->nop_cmds[p->nop_point]);
984                 p->scb->cmd_cuc = CUC_START;
985                 sun3_attn586();
986                 WAIT_4_SCB_CMD();
987                 dev->trans_start = jiffies;
988                 return 0;
989         }
990 #endif
991         {
992 #ifdef DEBUG
993                 printk("%s: xmitter timed out, try to restart! stat: %02x\n",dev->name,p->scb->cus);
994                 printk("%s: command-stats: %04x %04x\n",dev->name,swab16(p->xmit_cmds[0]->cmd_status),swab16(p->xmit_cmds[1]->cmd_status));
995                 printk("%s: check, whether you set the right interrupt number!\n",dev->name);
996 #endif
997                 sun3_82586_close(dev);
998                 sun3_82586_open(dev);
999         }
1000         dev->trans_start = jiffies;
1001 }
1002
1003 /******************************************************
1004  * send frame
1005  */
1006
1007 static int sun3_82586_send_packet(struct sk_buff *skb, struct net_device *dev)
1008 {
1009         int len,i;
1010 #ifndef NO_NOPCOMMANDS
1011         int next_nop;
1012 #endif
1013         struct priv *p = netdev_priv(dev);
1014
1015         if(skb->len > XMIT_BUFF_SIZE)
1016         {
1017                 printk("%s: Sorry, max. framelength is %d bytes. The length of your frame is %d bytes.\n",dev->name,XMIT_BUFF_SIZE,skb->len);
1018                 return 0;
1019         }
1020
1021         netif_stop_queue(dev);
1022
1023 #if(NUM_XMIT_BUFFS > 1)
1024         if(test_and_set_bit(0,(void *) &p->lock)) {
1025                 printk("%s: Queue was locked\n",dev->name);
1026                 return 1;
1027         }
1028         else
1029 #endif
1030         {
1031                 len = skb->len;
1032                 if (len < ETH_ZLEN) {
1033                         memset((void *)p->xmit_cbuffs[p->xmit_count], 0,
1034                                ETH_ZLEN);
1035                         len = ETH_ZLEN;
1036                 }
1037                 skb_copy_from_linear_data(skb, (void *)p->xmit_cbuffs[p->xmit_count], skb->len);
1038
1039 #if (NUM_XMIT_BUFFS == 1)
1040 #       ifdef NO_NOPCOMMANDS
1041
1042 #ifdef DEBUG
1043                 if(p->scb->cus & CU_ACTIVE)
1044                 {
1045                         printk("%s: Hmmm .. CU is still running and we wanna send a new packet.\n",dev->name);
1046                         printk("%s: stat: %04x %04x\n",dev->name,p->scb->cus,swab16(p->xmit_cmds[0]->cmd_status));
1047                 }
1048 #endif
1049
1050                 p->xmit_buffs[0]->size = swab16(TBD_LAST | len);
1051                 for(i=0;i<16;i++)
1052                 {
1053                         p->xmit_cmds[0]->cmd_status = 0;
1054                         WAIT_4_SCB_CMD();
1055                         if( (p->scb->cus & CU_STATUS) == CU_SUSPEND)
1056                                 p->scb->cmd_cuc = CUC_RESUME;
1057                         else
1058                         {
1059                                 p->scb->cbl_offset = make16(p->xmit_cmds[0]);
1060                                 p->scb->cmd_cuc = CUC_START;
1061                         }
1062
1063                         sun3_attn586();
1064                         dev->trans_start = jiffies;
1065                         if(!i)
1066                                 dev_kfree_skb(skb);
1067                         WAIT_4_SCB_CMD();
1068                         if( (p->scb->cus & CU_ACTIVE)) /* test it, because CU sometimes doesn't start immediately */
1069                                 break;
1070                         if(p->xmit_cmds[0]->cmd_status)
1071                                 break;
1072                         if(i==15)
1073                                 printk("%s: Can't start transmit-command.\n",dev->name);
1074                 }
1075 #       else
1076                 next_nop = (p->nop_point + 1) & 0x1;
1077                 p->xmit_buffs[0]->size = swab16(TBD_LAST | len);
1078
1079                 p->xmit_cmds[0]->cmd_link        = p->nop_cmds[next_nop]->cmd_link
1080                         = make16((p->nop_cmds[next_nop]));
1081                 p->xmit_cmds[0]->cmd_status = p->nop_cmds[next_nop]->cmd_status = 0;
1082
1083                 p->nop_cmds[p->nop_point]->cmd_link = make16((p->xmit_cmds[0]));
1084                 dev->trans_start = jiffies;
1085                 p->nop_point = next_nop;
1086                 dev_kfree_skb(skb);
1087 #       endif
1088 #else
1089                 p->xmit_buffs[p->xmit_count]->size = swab16(TBD_LAST | len);
1090                 if( (next_nop = p->xmit_count + 1) == NUM_XMIT_BUFFS )
1091                         next_nop = 0;
1092
1093                 p->xmit_cmds[p->xmit_count]->cmd_status = 0;
1094                 /* linkpointer of xmit-command already points to next nop cmd */
1095                 p->nop_cmds[next_nop]->cmd_link = make16((p->nop_cmds[next_nop]));
1096                 p->nop_cmds[next_nop]->cmd_status = 0;
1097
1098                 p->nop_cmds[p->xmit_count]->cmd_link = make16((p->xmit_cmds[p->xmit_count]));
1099                 dev->trans_start = jiffies;
1100                 p->xmit_count = next_nop;
1101
1102                 {
1103                         unsigned long flags;
1104                         local_irq_save(flags);
1105                         if(p->xmit_count != p->xmit_last)
1106                                 netif_wake_queue(dev);
1107                         p->lock = 0;
1108                         local_irq_restore(flags);
1109                 }
1110                 dev_kfree_skb(skb);
1111 #endif
1112         }
1113         return 0;
1114 }
1115
1116 /*******************************************
1117  * Someone wanna have the statistics
1118  */
1119
1120 static struct net_device_stats *sun3_82586_get_stats(struct net_device *dev)
1121 {
1122         struct priv *p = netdev_priv(dev);
1123         unsigned short crc,aln,rsc,ovrn;
1124
1125         crc = swab16(p->scb->crc_errs); /* get error-statistic from the ni82586 */
1126         p->scb->crc_errs = 0;
1127         aln = swab16(p->scb->aln_errs);
1128         p->scb->aln_errs = 0;
1129         rsc = swab16(p->scb->rsc_errs);
1130         p->scb->rsc_errs = 0;
1131         ovrn = swab16(p->scb->ovrn_errs);
1132         p->scb->ovrn_errs = 0;
1133
1134         p->stats.rx_crc_errors += crc;
1135         p->stats.rx_fifo_errors += ovrn;
1136         p->stats.rx_frame_errors += aln;
1137         p->stats.rx_dropped += rsc;
1138
1139         return &p->stats;
1140 }
1141
1142 /********************************************************
1143  * Set MC list ..
1144  */
1145
1146 static void set_multicast_list(struct net_device *dev)
1147 {
1148         netif_stop_queue(dev);
1149         sun3_disint();
1150         alloc586(dev);
1151         init586(dev);
1152         startrecv586(dev);
1153         sun3_enaint();
1154         netif_wake_queue(dev);
1155 }
1156
1157 #ifdef MODULE
1158 #error This code is not currently supported as a module
1159 static struct net_device *dev_sun3_82586;
1160
1161 int init_module(void)
1162 {
1163         dev_sun3_82586 = sun3_82586_probe(-1);
1164         if (IS_ERR(dev_sun3_82586))
1165                 return PTR_ERR(dev_sun3_82586);
1166         return 0;
1167 }
1168
1169 void cleanup_module(void)
1170 {
1171         unsigned long ioaddr = dev_sun3_82586->base_addr;
1172         unregister_netdev(dev_sun3_82586);
1173         release_region(ioaddr, SUN3_82586_TOTAL_SIZE);
1174         iounmap((void *)ioaddr);
1175         free_netdev(dev_sun3_82586);
1176 }
1177 #endif /* MODULE */
1178
1179 #if 0
1180 /*
1181  * DUMP .. we expect a not running CMD unit and enough space
1182  */
1183 void sun3_82586_dump(struct net_device *dev,void *ptr)
1184 {
1185         struct priv *p = netdev_priv(dev);
1186         struct dump_cmd_struct *dump_cmd = (struct dump_cmd_struct *) ptr;
1187         int i;
1188
1189         p->scb->cmd_cuc = CUC_ABORT;
1190         sun3_attn586();
1191         WAIT_4_SCB_CMD();
1192         WAIT_4_SCB_CMD_RUC();
1193
1194         dump_cmd->cmd_status = 0;
1195         dump_cmd->cmd_cmd = CMD_DUMP | CMD_LAST;
1196         dump_cmd->dump_offset = make16((dump_cmd + 1));
1197         dump_cmd->cmd_link = 0xffff;
1198
1199         p->scb->cbl_offset = make16(dump_cmd);
1200         p->scb->cmd_cuc = CUC_START;
1201         sun3_attn586();
1202         WAIT_4_STAT_COMPL(dump_cmd);
1203
1204         if( (dump_cmd->cmd_status & (STAT_COMPL|STAT_OK)) != (STAT_COMPL|STAT_OK) )
1205                                 printk("%s: Can't get dump information.\n",dev->name);
1206
1207         for(i=0;i<170;i++) {
1208                 printk("%02x ",(int) ((unsigned char *) (dump_cmd + 1))[i]);
1209                 if(i % 24 == 23)
1210                         printk("\n");
1211         }
1212         printk("\n");
1213 }
1214 #endif
1215
1216 MODULE_LICENSE("GPL");