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