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/drivers/fc4/soc.c

https://bitbucket.org/evzijst/gittest
C | 766 lines | 621 code | 99 blank | 46 comment | 103 complexity | 3c145a58b2d86be4591baca89ee6e570 MD5 | raw file
  1/* soc.c: Sparc SUNW,soc (Serial Optical Channel) Fibre Channel Sbus adapter support.
  2 *
  3 * Copyright (C) 1996,1997,1999 Jakub Jelinek (jj@ultra.linux.cz)
  4 * Copyright (C) 1997,1998 Jirka Hanika (geo@ff.cuni.cz)
  5 *
  6 * Sources:
  7 *	Fibre Channel Physical & Signaling Interface (FC-PH), dpANS, 1994
  8 *	dpANS Fibre Channel Protocol for SCSI (X3.269-199X), Rev. 012, 1995
  9 *
 10 * Supported hardware:
 11 *      Tested on SOC sbus card bought with SS1000 in Linux running on SS5 and Ultra1. 
 12 *      For SOC sbus cards, you have to make sure your FCode is 1.52 or later.
 13 *      If you have older FCode, you should try to upgrade or get SOC microcode from Sun
 14 *      (the microcode is present in Solaris soc driver as well). In that case you need
 15 *      to #define HAVE_SOC_UCODE and format the microcode into soc_asm.c. For the exact
 16 *      format mail me and I will tell you. I cannot offer you the actual microcode though,
 17 *      unless Sun confirms they don't mind.
 18 */
 19
 20static char *version =
 21        "soc.c:v1.3 9/Feb/99 Jakub Jelinek (jj@ultra.linux.cz), Jirka Hanika (geo@ff.cuni.cz)\n";
 22
 23#include <linux/module.h>
 24#include <linux/kernel.h>
 25#include <linux/sched.h>
 26#include <linux/types.h>
 27#include <linux/fcntl.h>
 28#include <linux/interrupt.h>
 29#include <linux/ptrace.h>
 30#include <linux/ioport.h>
 31#include <linux/in.h>
 32#include <linux/slab.h>
 33#include <linux/string.h>
 34#include <linux/init.h>
 35#include <linux/bitops.h>
 36#include <asm/io.h>
 37#include <asm/dma.h>
 38#include <linux/errno.h>
 39#include <asm/byteorder.h>
 40
 41#include <asm/openprom.h>
 42#include <asm/oplib.h>
 43#include <asm/pgtable.h>
 44#include <asm/irq.h>
 45
 46/* #define SOCDEBUG */
 47/* #define HAVE_SOC_UCODE */
 48
 49#include "fcp_impl.h"
 50#include "soc.h"
 51#ifdef HAVE_SOC_UCODE
 52#include "soc_asm.h"
 53#endif
 54
 55#define soc_printk printk ("soc%d: ", s->soc_no); printk 
 56
 57#ifdef SOCDEBUG
 58#define SOD(x)  soc_printk x;
 59#else
 60#define SOD(x)
 61#endif
 62
 63#define for_each_soc(s) for (s = socs; s; s = s->next)
 64struct soc *socs = NULL;
 65
 66static inline void soc_disable(struct soc *s)
 67{
 68	sbus_writel(0, s->regs + IMASK);
 69	sbus_writel(SOC_CMD_SOFT_RESET, s->regs + CMD);
 70}
 71
 72static inline void soc_enable(struct soc *s)
 73{
 74	SOD(("enable %08x\n", s->cfg))
 75	sbus_writel(0, s->regs + SAE);
 76	sbus_writel(s->cfg, s->regs + CFG);
 77	sbus_writel(SOC_CMD_RSP_QALL, s->regs + CMD);
 78	SOC_SETIMASK(s, SOC_IMASK_RSP_QALL | SOC_IMASK_SAE);
 79	SOD(("imask %08lx %08lx\n", s->imask, sbus_readl(s->regs + IMAK)));
 80}
 81
 82static void soc_reset(fc_channel *fc)
 83{
 84	soc_port *port = (soc_port *)fc;
 85	struct soc *s = port->s;
 86	
 87	/* FIXME */
 88	soc_disable(s);
 89	s->req[0].seqno = 1;
 90	s->req[1].seqno = 1;
 91	s->rsp[0].seqno = 1;
 92	s->rsp[1].seqno = 1;
 93	s->req[0].in = 0;
 94	s->req[1].in = 0;
 95	s->rsp[0].in = 0;
 96	s->rsp[1].in = 0;
 97	s->req[0].out = 0;
 98	s->req[1].out = 0;
 99	s->rsp[0].out = 0;
100	s->rsp[1].out = 0;
101
102	/* FIXME */
103	soc_enable(s);
104}
105
106static inline void soc_solicited (struct soc *s)
107{
108	fc_hdr fchdr;
109	soc_rsp __iomem *hwrsp;
110	soc_cq_rsp *sw_cq;
111	int token;
112	int status;
113	fc_channel *fc;
114
115	sw_cq = &s->rsp[SOC_SOLICITED_RSP_Q];
116
117	if (sw_cq->pool == NULL)
118		sw_cq->pool = (soc_req __iomem *)
119			(s->xram + xram_get_32low ((xram_p)&sw_cq->hw_cq->address));
120	sw_cq->in = xram_get_8 ((xram_p)&sw_cq->hw_cq->in);
121	SOD (("soc_solicited, %d pkts arrived\n", (sw_cq->in-sw_cq->out) & sw_cq->last))
122	for (;;) {
123		hwrsp = (soc_rsp __iomem *)sw_cq->pool + sw_cq->out;
124		token = xram_get_32low ((xram_p)&hwrsp->shdr.token);
125		status = xram_get_32low ((xram_p)&hwrsp->status);
126		fc = (fc_channel *)(&s->port[(token >> 11) & 1]);
127		
128		if (status == SOC_OK) {
129			fcp_receive_solicited(fc, token >> 12,
130					      token & ((1 << 11) - 1),
131					      FC_STATUS_OK, NULL);
132		} else {
133			xram_copy_from(&fchdr, (xram_p)&hwrsp->fchdr, sizeof(fchdr));
134			/* We have intentionally defined FC_STATUS_* constants
135			 * to match SOC_* constants, otherwise we'd have to
136			 * translate status.
137			 */
138			fcp_receive_solicited(fc, token >> 12,
139					      token & ((1 << 11) - 1),
140					      status, &fchdr);
141		}
142			
143		if (++sw_cq->out > sw_cq->last) {
144			sw_cq->seqno++;
145			sw_cq->out = 0;
146		}
147		
148		if (sw_cq->out == sw_cq->in) {
149			sw_cq->in = xram_get_8 ((xram_p)&sw_cq->hw_cq->in);
150			if (sw_cq->out == sw_cq->in) {
151				/* Tell the hardware about it */
152				sbus_writel((sw_cq->out << 24) |
153					    (SOC_CMD_RSP_QALL &
154					     ~(SOC_CMD_RSP_Q0 << SOC_SOLICITED_RSP_Q)),
155					    s->regs + CMD);
156
157				/* Read it, so that we're sure it has been updated */
158				sbus_readl(s->regs + CMD);
159				sw_cq->in = xram_get_8 ((xram_p)&sw_cq->hw_cq->in);
160				if (sw_cq->out == sw_cq->in)
161					break;
162			}
163		}
164	}
165}
166
167static inline void soc_request (struct soc *s, u32 cmd)
168{
169	SOC_SETIMASK(s, s->imask & ~(cmd & SOC_CMD_REQ_QALL));
170	SOD(("imask %08lx %08lx\n", s->imask, sbus_readl(s->regs + IMASK)));
171
172	SOD(("Queues available %08x OUT %X %X\n", cmd,
173	     xram_get_8((xram_p)&s->req[0].hw_cq->out),
174	     xram_get_8((xram_p)&s->req[0].hw_cq->out)))
175	if (s->port[s->curr_port].fc.state != FC_STATE_OFFLINE) {
176		fcp_queue_empty ((fc_channel *)&(s->port[s->curr_port]));
177		if (((s->req[1].in + 1) & s->req[1].last) != (s->req[1].out))
178			fcp_queue_empty ((fc_channel *)&(s->port[1 - s->curr_port]));
179	} else {
180		fcp_queue_empty ((fc_channel *)&(s->port[1 - s->curr_port]));
181	}
182	if (s->port[1 - s->curr_port].fc.state != FC_STATE_OFFLINE)
183		s->curr_port ^= 1;
184}
185
186static inline void soc_unsolicited (struct soc *s)
187{
188	soc_rsp __iomem *hwrsp, *hwrspc;
189	soc_cq_rsp *sw_cq;
190	int count;
191	int status;
192	int flags;
193	fc_channel *fc;
194
195	sw_cq = &s->rsp[SOC_UNSOLICITED_RSP_Q];
196	if (sw_cq->pool == NULL)
197		sw_cq->pool = (soc_req __iomem *)
198			(s->xram + (xram_get_32low ((xram_p)&sw_cq->hw_cq->address)));
199
200	sw_cq->in = xram_get_8 ((xram_p)&sw_cq->hw_cq->in);
201	SOD (("soc_unsolicited, %d packets arrived\n", (sw_cq->in - sw_cq->out) & sw_cq->last))
202	while (sw_cq->in != sw_cq->out) {
203		/* ...real work per entry here... */
204		hwrsp = (soc_rsp __iomem *)sw_cq->pool + sw_cq->out;
205
206		hwrspc = NULL;
207		flags = xram_get_16 ((xram_p)&hwrsp->shdr.flags);
208		count = xram_get_8 ((xram_p)&hwrsp->count);
209		fc = (fc_channel *)&s->port[flags & SOC_PORT_B];
210		SOD(("FC %08lx fcp_state_change %08lx\n",
211		     (long)fc, (long)fc->fcp_state_change))
212		
213		if (count != 1) {
214			/* Ugh, continuation entries */
215			u8 in;
216
217			if (count != 2) {
218				printk("%s: Too many continuations entries %d\n",
219				       fc->name, count);
220				goto update_out;
221			}
222			
223			in = sw_cq->in;
224			if (in < sw_cq->out) in += sw_cq->last + 1;
225			if (in < sw_cq->out + 2) {
226				/* Ask the hardware if they haven't arrived yet. */
227				sbus_writel((sw_cq->out << 24) |
228					    (SOC_CMD_RSP_QALL &
229					     ~(SOC_CMD_RSP_Q0 << SOC_UNSOLICITED_RSP_Q)),
230					    s->regs + CMD);
231
232				/* Read it, so that we're sure it has been updated */
233				sbus_readl(s->regs + CMD);
234				sw_cq->in = xram_get_8 ((xram_p)&sw_cq->hw_cq->in);
235				in = sw_cq->in;
236				if (in < sw_cq->out)
237					in += sw_cq->last + 1;
238				if (in < sw_cq->out + 2) /* Nothing came, let us wait */
239					return;
240			}
241			if (sw_cq->out == sw_cq->last)
242				hwrspc = (soc_rsp __iomem *)sw_cq->pool;
243			else
244				hwrspc = hwrsp + 1;
245		}
246		
247		switch (flags & ~SOC_PORT_B) {
248		case SOC_STATUS:
249			status = xram_get_32low ((xram_p)&hwrsp->status);
250			switch (status) {
251			case SOC_ONLINE:
252				SOD(("State change to ONLINE\n"));
253				fcp_state_change(fc, FC_STATE_ONLINE);
254				break;
255			case SOC_OFFLINE:
256				SOD(("State change to OFFLINE\n"));
257				fcp_state_change(fc, FC_STATE_OFFLINE);
258				break;
259			default:
260				printk ("%s: Unknown STATUS no %d\n",
261					fc->name, status);
262				break;
263			}
264			break;
265		case (SOC_UNSOLICITED|SOC_FC_HDR):
266			{
267				int r_ctl = xram_get_8 ((xram_p)&hwrsp->fchdr);
268				unsigned len;
269				char buf[64];
270				
271				if ((r_ctl & 0xf0) == R_CTL_EXTENDED_SVC) {
272					len = xram_get_32 ((xram_p)&hwrsp->shdr.bytecnt);
273					if (len < 4 || !hwrspc) {
274						printk ("%s: Invalid R_CTL %02x "
275							"continuation entries\n",
276							fc->name, r_ctl);
277					} else {
278						if (len > 60)
279							len = 60;
280						xram_copy_from (buf, (xram_p)hwrspc,
281								(len + 3) & ~3);
282						if (*(u32 *)buf == LS_DISPLAY) {
283							int i;
284							
285							for (i = 4; i < len; i++)
286								if (buf[i] == '\n')
287									buf[i] = ' ';
288							buf[len] = 0;
289							printk ("%s message: %s\n",
290								fc->name, buf + 4);
291						} else {
292							printk ("%s: Unknown LS_CMD "
293								"%02x\n", fc->name,
294								buf[0]);
295						}
296					}
297				} else {
298					printk ("%s: Unsolicited R_CTL %02x "
299						"not handled\n", fc->name, r_ctl);
300				}
301			}
302			break;
303		default:
304			printk ("%s: Unexpected flags %08x\n", fc->name, flags);
305			break;
306		};
307update_out:
308		if (++sw_cq->out > sw_cq->last) {
309			sw_cq->seqno++;
310			sw_cq->out = 0;
311		}
312		
313		if (hwrspc) {
314			if (++sw_cq->out > sw_cq->last) {
315				sw_cq->seqno++;
316				sw_cq->out = 0;
317			}
318		}
319		
320		if (sw_cq->out == sw_cq->in) {
321			sw_cq->in = xram_get_8 ((xram_p)&sw_cq->hw_cq->in);
322			if (sw_cq->out == sw_cq->in) {
323				/* Tell the hardware about it */
324				sbus_writel((sw_cq->out << 24) |
325					    (SOC_CMD_RSP_QALL &
326					     ~(SOC_CMD_RSP_Q0 << SOC_UNSOLICITED_RSP_Q)),
327					    s->regs + CMD);
328
329				/* Read it, so that we're sure it has been updated */
330				sbus_readl(s->regs + CMD);
331				sw_cq->in = xram_get_8 ((xram_p)&sw_cq->hw_cq->in);
332			}
333		}
334	}
335}
336
337static irqreturn_t soc_intr(int irq, void *dev_id, struct pt_regs *regs)
338{
339	u32 cmd;
340	unsigned long flags;
341	register struct soc *s = (struct soc *)dev_id;
342
343	spin_lock_irqsave(&s->lock, flags);
344	cmd = sbus_readl(s->regs + CMD);
345	for (; (cmd = SOC_INTR (s, cmd)); cmd = sbus_readl(s->regs + CMD)) {
346		if (cmd & SOC_CMD_RSP_Q1) soc_unsolicited (s);
347		if (cmd & SOC_CMD_RSP_Q0) soc_solicited (s);
348		if (cmd & SOC_CMD_REQ_QALL) soc_request (s, cmd);
349	}
350	spin_unlock_irqrestore(&s->lock, flags);
351
352	return IRQ_HANDLED;
353}
354
355#define TOKEN(proto, port, token) (((proto)<<12)|(token)|(port))
356
357static int soc_hw_enque (fc_channel *fc, fcp_cmnd *fcmd)
358{
359	soc_port *port = (soc_port *)fc;
360	struct soc *s = port->s;
361	int qno;
362	soc_cq_req *sw_cq;
363	int cq_next_in;
364	soc_req *request;
365	fc_hdr *fch;
366	int i;
367
368	if (fcmd->proto == TYPE_SCSI_FCP)
369		qno = 1;
370	else
371		qno = 0;
372	SOD(("Putting a FCP packet type %d into hw queue %d\n", fcmd->proto, qno))
373	if (s->imask & (SOC_IMASK_REQ_Q0 << qno)) {
374		SOD(("EIO %08x\n", s->imask))
375		return -EIO;
376	}
377	sw_cq = s->req + qno;
378	cq_next_in = (sw_cq->in + 1) & sw_cq->last;
379	
380	if (cq_next_in == sw_cq->out &&
381	    cq_next_in == (sw_cq->out = xram_get_8((xram_p)&sw_cq->hw_cq->out))) {
382		SOD(("%d IN %d OUT %d LAST %d\n", qno, sw_cq->in, sw_cq->out, sw_cq->last))
383		SOC_SETIMASK(s, s->imask | (SOC_IMASK_REQ_Q0 << qno));
384		SOD(("imask %08lx %08lx\n", s->imask, sbus_readl(s->regs + IMASK)));
385		/* If queue is full, just say NO */
386		return -EBUSY;
387	}
388	
389	request = sw_cq->pool + sw_cq->in;
390	fch = &request->fchdr;
391	
392	switch (fcmd->proto) {
393	case TYPE_SCSI_FCP:
394		request->shdr.token = TOKEN(TYPE_SCSI_FCP, port->mask, fcmd->token); 
395		request->data[0].base = fc->dma_scsi_cmd + fcmd->token * sizeof(fcp_cmd);
396		request->data[0].count = sizeof(fcp_cmd);
397		request->data[1].base = fc->dma_scsi_rsp + fcmd->token * fc->rsp_size;
398		request->data[1].count = fc->rsp_size;
399		if (fcmd->data) {
400			request->shdr.segcnt = 3;
401			i = fc->scsi_cmd_pool[fcmd->token].fcp_data_len;
402			request->shdr.bytecnt = i;
403			request->data[2].base = fcmd->data;
404			request->data[2].count = i;
405			request->type =
406			    (fc->scsi_cmd_pool[fcmd->token].fcp_cntl & FCP_CNTL_WRITE) ?
407				SOC_CQTYPE_IO_WRITE : SOC_CQTYPE_IO_READ;
408		} else {
409			request->shdr.segcnt = 2;
410			request->shdr.bytecnt = 0;
411			request->data[2].base = 0;
412			request->data[2].count = 0;
413			request->type = SOC_CQTYPE_SIMPLE;
414		}
415		FILL_FCHDR_RCTL_DID(fch, R_CTL_COMMAND, fc->did);
416		FILL_FCHDR_SID(fch, fc->sid);
417		FILL_FCHDR_TYPE_FCTL(fch, TYPE_SCSI_FCP,
418				     F_CTL_FIRST_SEQ | F_CTL_SEQ_INITIATIVE);
419		FILL_FCHDR_SEQ_DF_SEQ(fch, 0, 0, 0);
420		FILL_FCHDR_OXRX(fch, 0xffff, 0xffff);
421		fch->param = 0;
422		request->shdr.flags = port->flags;
423		request->shdr.class = 2;
424		break;
425		
426	case PROTO_OFFLINE:
427		memset (request, 0, sizeof(*request));
428		request->shdr.token = TOKEN(PROTO_OFFLINE, port->mask, fcmd->token); 
429		request->type = SOC_CQTYPE_OFFLINE;
430		FILL_FCHDR_RCTL_DID(fch, R_CTL_COMMAND, fc->did);
431		FILL_FCHDR_SID(fch, fc->sid);
432		FILL_FCHDR_TYPE_FCTL(fch, TYPE_SCSI_FCP,
433				     F_CTL_FIRST_SEQ | F_CTL_SEQ_INITIATIVE);
434		FILL_FCHDR_SEQ_DF_SEQ(fch, 0, 0, 0);
435		FILL_FCHDR_OXRX(fch, 0xffff, 0xffff);
436		request->shdr.flags = port->flags;
437		break;
438		
439	case PROTO_REPORT_AL_MAP:
440		/* SOC only supports Point-to-Point topology, no FC-AL, sorry... */
441		return -ENOSYS;
442
443	default: 
444		request->shdr.token = TOKEN(fcmd->proto, port->mask, fcmd->token);
445		request->shdr.class = 2;
446		request->shdr.flags = port->flags;
447		memcpy (fch, &fcmd->fch, sizeof(fc_hdr));
448		request->data[0].count = fcmd->cmdlen;
449		request->data[1].count = fcmd->rsplen;
450		request->type = fcmd->class;
451		switch (fcmd->class) {
452		case FC_CLASS_OUTBOUND:
453			request->data[0].base = fcmd->cmd;
454			request->data[0].count = fcmd->cmdlen;
455			request->type = SOC_CQTYPE_OUTBOUND;
456			request->shdr.bytecnt = fcmd->cmdlen;
457			request->shdr.segcnt = 1;
458			break;
459		case FC_CLASS_INBOUND:
460			request->data[0].base = fcmd->rsp;
461			request->data[0].count = fcmd->rsplen;
462			request->type = SOC_CQTYPE_INBOUND;
463			request->shdr.bytecnt = 0;
464			request->shdr.segcnt = 1;
465			break;
466		case FC_CLASS_SIMPLE:
467			request->data[0].base = fcmd->cmd;
468			request->data[1].base = fcmd->rsp;
469			request->data[0].count = fcmd->cmdlen;
470			request->data[1].count = fcmd->rsplen;
471			request->type = SOC_CQTYPE_SIMPLE;
472			request->shdr.bytecnt = fcmd->cmdlen;
473			request->shdr.segcnt = 2;
474			break;
475		case FC_CLASS_IO_READ:
476		case FC_CLASS_IO_WRITE:
477			request->data[0].base = fcmd->cmd;
478			request->data[1].base = fcmd->rsp;
479			request->data[0].count = fcmd->cmdlen;
480			request->data[1].count = fcmd->rsplen;
481			request->type =
482			      (fcmd->class == FC_CLASS_IO_READ) ?
483				SOC_CQTYPE_IO_READ : SOC_CQTYPE_IO_WRITE;
484			if (fcmd->data) {
485				request->data[2].base = fcmd->data;
486				request->data[2].count = fcmd->datalen;
487				request->shdr.bytecnt = fcmd->datalen;
488				request->shdr.segcnt = 3;
489			} else {
490				request->shdr.bytecnt = 0;
491				request->shdr.segcnt = 2;
492			}
493			break;
494		};
495		break;
496	};
497
498	request->count = 1;
499	request->flags = 0;
500	request->seqno = sw_cq->seqno;
501	
502	/* And now tell the SOC about it */
503
504	if (++sw_cq->in > sw_cq->last) {
505		sw_cq->in = 0;
506		sw_cq->seqno++;
507	}
508	
509	SOD(("Putting %08x into cmd\n",
510	     SOC_CMD_RSP_QALL | (sw_cq->in << 24) | (SOC_CMD_REQ_Q0 << qno)))
511	
512	sbus_writel(SOC_CMD_RSP_QALL | (sw_cq->in << 24) | (SOC_CMD_REQ_Q0 << qno),
513		    s->regs + CMD);
514
515	/* Read so that command is completed. */	
516	sbus_readl(s->regs + CMD);
517	
518	return 0;
519}
520
521static inline void soc_download_fw(struct soc *s)
522{
523#ifdef HAVE_SOC_UCODE
524	xram_copy_to (s->xram, soc_ucode, sizeof(soc_ucode));
525	xram_bzero (s->xram + sizeof(soc_ucode), 32768 - sizeof(soc_ucode));
526#endif
527}
528
529/* Check for what the best SBUS burst we can use happens
530 * to be on this machine.
531 */
532static inline void soc_init_bursts(struct soc *s, struct sbus_dev *sdev)
533{
534	int bsizes, bsizes_more;
535
536	bsizes = (prom_getintdefault(sdev->prom_node,"burst-sizes",0xff) & 0xff);
537	bsizes_more = (prom_getintdefault(sdev->bus->prom_node, "burst-sizes", 0xff) & 0xff);
538	bsizes &= bsizes_more;
539	if ((bsizes & 0x7f) == 0x7f)
540		s->cfg = SOC_CFG_BURST_64;
541	else if ((bsizes & 0x3f) == 0x3f) 
542		s->cfg = SOC_CFG_BURST_32;
543	else if ((bsizes & 0x1f) == 0x1f)
544		s->cfg = SOC_CFG_BURST_16;
545	else
546		s->cfg = SOC_CFG_BURST_4;
547}
548
549static inline void soc_init(struct sbus_dev *sdev, int no)
550{
551	unsigned char tmp[60];
552	int propl;
553	struct soc *s;
554	static int version_printed = 0;
555	soc_hw_cq cq[8];
556	int size, i;
557	int irq;
558	
559	s = kmalloc (sizeof (struct soc), GFP_KERNEL);
560	if (s == NULL)
561		return;
562	memset (s, 0, sizeof(struct soc));
563	spin_lock_init(&s->lock);
564	s->soc_no = no;
565
566	SOD(("socs %08lx soc_intr %08lx soc_hw_enque %08x\n",
567	     (long)socs, (long)soc_intr, (long)soc_hw_enque))	
568	if (version_printed++ == 0)
569		printk (version);
570
571	s->port[0].fc.module = THIS_MODULE;
572	s->port[1].fc.module = THIS_MODULE;
573
574	s->next = socs;
575	socs = s;
576	s->port[0].fc.dev = sdev;
577	s->port[1].fc.dev = sdev;
578	s->port[0].s = s;
579	s->port[1].s = s;
580
581	s->port[0].fc.next = &s->port[1].fc;
582
583	/* World Wide Name of SOC */
584	propl = prom_getproperty (sdev->prom_node, "soc-wwn", tmp, sizeof(tmp));
585	if (propl != sizeof (fc_wwn)) {
586		s->wwn.naaid = NAAID_IEEE;
587		s->wwn.lo = 0x12345678;
588	} else
589		memcpy (&s->wwn, tmp, sizeof (fc_wwn));
590		
591	propl = prom_getproperty (sdev->prom_node, "port-wwns", tmp, sizeof(tmp));
592	if (propl != 2 * sizeof (fc_wwn)) {
593		s->port[0].fc.wwn_nport.naaid = NAAID_IEEE_EXT;
594		s->port[0].fc.wwn_nport.hi = s->wwn.hi;
595		s->port[0].fc.wwn_nport.lo = s->wwn.lo;
596		s->port[1].fc.wwn_nport.naaid = NAAID_IEEE_EXT;
597		s->port[1].fc.wwn_nport.nportid = 1;
598		s->port[1].fc.wwn_nport.hi = s->wwn.hi;
599		s->port[1].fc.wwn_nport.lo = s->wwn.lo;
600	} else {
601		memcpy (&s->port[0].fc.wwn_nport, tmp, sizeof (fc_wwn));
602		memcpy (&s->port[1].fc.wwn_nport, tmp + sizeof (fc_wwn), sizeof (fc_wwn));
603	}
604	memcpy (&s->port[0].fc.wwn_node, &s->wwn, sizeof (fc_wwn));
605	memcpy (&s->port[1].fc.wwn_node, &s->wwn, sizeof (fc_wwn));
606	SOD(("Got wwns %08x%08x ports %08x%08x and %08x%08x\n", 
607	     *(u32 *)&s->port[0].fc.wwn_nport, s->port[0].fc.wwn_nport.lo,
608	     *(u32 *)&s->port[0].fc.wwn_nport, s->port[0].fc.wwn_nport.lo,
609	     *(u32 *)&s->port[1].fc.wwn_nport, s->port[1].fc.wwn_nport.lo))
610		
611	s->port[0].fc.sid = 1;
612	s->port[1].fc.sid = 17;
613	s->port[0].fc.did = 2;
614	s->port[1].fc.did = 18;
615	
616	s->port[0].fc.reset = soc_reset;
617	s->port[1].fc.reset = soc_reset;
618	
619	if (sdev->num_registers == 1) {
620		/* Probably SunFire onboard SOC */
621		s->xram = sbus_ioremap(&sdev->resource[0], 0,
622				       0x10000UL, "soc xram");
623		s->regs = sbus_ioremap(&sdev->resource[0], 0x10000UL,
624				       0x10UL, "soc regs");
625	} else {
626		/* Probably SOC sbus card */
627		s->xram = sbus_ioremap(&sdev->resource[1], 0,
628				       sdev->reg_addrs[1].reg_size, "soc xram");
629		s->regs = sbus_ioremap(&sdev->resource[2], 0,
630				       sdev->reg_addrs[2].reg_size, "soc regs");
631	}
632	
633	soc_init_bursts(s, sdev);
634	
635	SOD(("Disabling SOC\n"))
636	
637	soc_disable (s);
638	
639	irq = sdev->irqs[0];
640
641	if (request_irq (irq, soc_intr, SA_SHIRQ, "SOC", (void *)s)) {
642		soc_printk ("Cannot order irq %d to go\n", irq);
643		socs = s->next;
644		return;
645	}
646
647	SOD(("SOC uses IRQ%s\n", __irq_itoa(irq)))
648	
649	s->port[0].fc.irq = irq;
650	s->port[1].fc.irq = irq;
651	
652	sprintf (s->port[0].fc.name, "soc%d port A", no);
653	sprintf (s->port[1].fc.name, "soc%d port B", no);
654	s->port[0].flags = SOC_FC_HDR | SOC_PORT_A;
655	s->port[1].flags = SOC_FC_HDR | SOC_PORT_B;
656	s->port[1].mask = (1 << 11);
657	
658	s->port[0].fc.hw_enque = soc_hw_enque;
659	s->port[1].fc.hw_enque = soc_hw_enque;
660	
661	soc_download_fw (s);
662	
663	SOD(("Downloaded firmware\n"))
664
665	/* Now setup xram circular queues */
666	memset (cq, 0, sizeof(cq));
667	
668	size = (SOC_CQ_REQ0_SIZE + SOC_CQ_REQ1_SIZE) * sizeof(soc_req);
669	s->req_cpu = sbus_alloc_consistent(sdev, size, &s->req_dvma);
670	s->req[0].pool = s->req_cpu;
671	cq[0].address = s->req_dvma;
672	s->req[1].pool = s->req[0].pool + SOC_CQ_REQ0_SIZE;
673	
674	s->req[0].hw_cq = (soc_hw_cq __iomem *)(s->xram + SOC_CQ_REQ_OFFSET);
675	s->req[1].hw_cq = (soc_hw_cq __iomem *)(s->xram + SOC_CQ_REQ_OFFSET + sizeof(soc_hw_cq));
676	s->rsp[0].hw_cq = (soc_hw_cq __iomem *)(s->xram + SOC_CQ_RSP_OFFSET);
677	s->rsp[1].hw_cq = (soc_hw_cq __iomem *)(s->xram + SOC_CQ_RSP_OFFSET + sizeof(soc_hw_cq));
678	
679	cq[1].address = cq[0].address + (SOC_CQ_REQ0_SIZE * sizeof(soc_req));
680	cq[4].address = 1;
681	cq[5].address = 1;
682	cq[0].last = SOC_CQ_REQ0_SIZE - 1;
683	cq[1].last = SOC_CQ_REQ1_SIZE - 1;
684	cq[4].last = SOC_CQ_RSP0_SIZE - 1;
685	cq[5].last = SOC_CQ_RSP1_SIZE - 1;
686	for (i = 0; i < 8; i++)
687		cq[i].seqno = 1;
688	
689	s->req[0].last = SOC_CQ_REQ0_SIZE - 1;
690	s->req[1].last = SOC_CQ_REQ1_SIZE - 1;
691	s->rsp[0].last = SOC_CQ_RSP0_SIZE - 1;
692	s->rsp[1].last = SOC_CQ_RSP1_SIZE - 1;
693	
694	s->req[0].seqno = 1;
695	s->req[1].seqno = 1;
696	s->rsp[0].seqno = 1;
697	s->rsp[1].seqno = 1;
698
699	xram_copy_to (s->xram + SOC_CQ_REQ_OFFSET, cq, sizeof(cq));
700	
701	/* Make our sw copy of SOC service parameters */
702	xram_copy_from (s->serv_params, s->xram + 0x140, sizeof (s->serv_params));
703	
704	s->port[0].fc.common_svc = (common_svc_parm *)s->serv_params;
705	s->port[0].fc.class_svcs = (svc_parm *)(s->serv_params + 0x20);
706	s->port[1].fc.common_svc = (common_svc_parm *)&s->serv_params;
707	s->port[1].fc.class_svcs = (svc_parm *)(s->serv_params + 0x20);
708	
709	soc_enable (s);
710	
711	SOD(("Enabled SOC\n"))
712}
713
714static int __init soc_probe(void)
715{
716	struct sbus_bus *sbus;
717	struct sbus_dev *sdev = NULL;
718	struct soc *s;
719	int cards = 0;
720
721	for_each_sbus(sbus) {
722		for_each_sbusdev(sdev, sbus) {
723			if(!strcmp(sdev->prom_name, "SUNW,soc")) {
724				soc_init(sdev, cards);
725				cards++;
726			}
727		}
728	}
729	if (!cards) return -EIO;
730
731	for_each_soc(s)
732		if (s->next)
733			s->port[1].fc.next = &s->next->port[0].fc;
734	fcp_init (&socs->port[0].fc);
735	return 0;
736}
737
738static void __exit soc_cleanup(void)
739{
740	struct soc *s;
741	int irq;
742	struct sbus_dev *sdev;
743	
744	for_each_soc(s) {
745		irq = s->port[0].fc.irq;
746		free_irq (irq, s);
747
748		fcp_release(&(s->port[0].fc), 2);
749
750		sdev = s->port[0].fc.dev;
751		if (sdev->num_registers == 1) {
752			sbus_iounmap(s->xram, 0x10000UL);
753			sbus_iounmap(s->regs, 0x10UL);
754		} else {
755			sbus_iounmap(s->xram, sdev->reg_addrs[1].reg_size);
756			sbus_iounmap(s->regs, sdev->reg_addrs[2].reg_size);
757		}
758		sbus_free_consistent(sdev,
759				     (SOC_CQ_REQ0_SIZE+SOC_CQ_REQ1_SIZE)*sizeof(soc_req),
760				     s->req_cpu, s->req_dvma);
761	}
762}
763
764module_init(soc_probe);
765module_exit(soc_cleanup);
766MODULE_LICENSE("GPL");