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Merge with Linux 2.4.0-test4-pre3.
[linux-2.6/linux-mips.git] / drivers / fc4 / soc.c
blob329c2ae45f22db58b1b3cc2bb06b6395014b1a2c
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
20 static 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/malloc.h>
33 #include <linux/string.h>
34 #include <linux/init.h>
35 #include <asm/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/auxio.h>
44 #include <asm/pgtable.h>
45 #include <asm/irq.h>
46
47 /* #define SOCDEBUG */
48 /* #define HAVE_SOC_UCODE */
49
50 #include "fcp_impl.h"
51 #include "soc.h"
52 #ifdef HAVE_SOC_UCODE
53 #include "soc_asm.h"
54 #endif
55
56 #define soc_printk printk ("soc%d: ", s->soc_no); printk
57
58 #ifdef SOCDEBUG
59 #define SOD(x) soc_printk x;
60 #else
61 #define SOD(x)
62 #endif
63
64 #define for_each_soc(s) for (s = socs; s; s = s->next)
65 struct soc *socs = NULL;
66
67 static inline void soc_disable(struct soc *s)
68 {
69 sbus_writel(0, s->regs + IMASK);
70 sbus_writel(SOC_CMD_SOFT_RESET, s->regs + CMD);
71 }
72
73 static inline void soc_enable(struct soc *s)
74 {
75 SOD(("enable %08x\n", s->cfg))
76 sbus_writel(0, s->regs + SAE);
77 sbus_writel(s->cfg, s->regs + CFG);
78 sbus_writel(SOC_CMD_RSP_QALL, s->regs + CMD);
79 SOC_SETIMASK(s, SOC_IMASK_RSP_QALL | SOC_IMASK_SAE);
80 SOD(("imask %08lx %08lx\n", s->imask, sbus_readl(s->regs + IMAK)));
81 }
82
83 static void soc_reset(fc_channel *fc)
84 {
85 soc_port *port = (soc_port *)fc;
86 struct soc *s = port->s;
87
88 /* FIXME */
89 soc_disable(s);
90 s->req[0].seqno = 1;
91 s->req[1].seqno = 1;
92 s->rsp[0].seqno = 1;
93 s->rsp[1].seqno = 1;
94 s->req[0].in = 0;
95 s->req[1].in = 0;
96 s->rsp[0].in = 0;
97 s->rsp[1].in = 0;
98 s->req[0].out = 0;
99 s->req[1].out = 0;
100 s->rsp[0].out = 0;
101 s->rsp[1].out = 0;
102
103 /* FIXME */
104 soc_enable(s);
105 }
106
107 static void inline soc_solicited (struct soc *s)
108 {
109 fc_hdr fchdr;
110 soc_rsp *hwrsp;
111 soc_cq *sw_cq;
112 int token;
113 int status;
114 fc_channel *fc;
115
116 sw_cq = &s->rsp[SOC_SOLICITED_RSP_Q];
117
118 if (sw_cq->pool == NULL)
119 sw_cq->pool = (soc_req *)
120 (s->xram + xram_get_32low ((xram_p)&sw_cq->hw_cq->address));
121 sw_cq->in = xram_get_8 ((xram_p)&sw_cq->hw_cq->in);
122 SOD (("soc_solicited, %d pkts arrived\n", (sw_cq->in-sw_cq->out) & sw_cq->last))
123 for (;;) {
124 hwrsp = (soc_rsp *)sw_cq->pool + sw_cq->out;
125 token = xram_get_32low ((xram_p)&hwrsp->shdr.token);
126 status = xram_get_32low ((xram_p)&hwrsp->status);
127 fc = (fc_channel *)(&s->port[(token >> 11) & 1]);
128
129 if (status == SOC_OK) {
130 fcp_receive_solicited(fc, token >> 12,
131 token & ((1 << 11) - 1),
132 FC_STATUS_OK, NULL);
133 } else {
134 xram_copy_from(&fchdr, (xram_p)&hwrsp->fchdr, sizeof(fchdr));
135 /* We have intentionally defined FC_STATUS_* constants
136 * to match SOC_* constants, otherwise we'd have to
137 * translate status.
138 */
139 fcp_receive_solicited(fc, token >> 12,
140 token & ((1 << 11) - 1),
141 status, &fchdr);
142 }
143
144 if (++sw_cq->out > sw_cq->last) {
145 sw_cq->seqno++;
146 sw_cq->out = 0;
147 }
148
149 if (sw_cq->out == sw_cq->in) {
150 sw_cq->in = xram_get_8 ((xram_p)&sw_cq->hw_cq->in);
151 if (sw_cq->out == sw_cq->in) {
152 /* Tell the hardware about it */
153 sbus_writel((sw_cq->out << 24) |
154 (SOC_CMD_RSP_QALL &
155 ~(SOC_CMD_RSP_Q0 << SOC_SOLICITED_RSP_Q)),
156 s->regs + CMD);
157
158 /* Read it, so that we're sure it has been updated */
159 sbus_readl(s->regs + CMD);
160 sw_cq->in = xram_get_8 ((xram_p)&sw_cq->hw_cq->in);
161 if (sw_cq->out == sw_cq->in)
162 break;
163 }
164 }
165 }
166 }
167
168 static void inline soc_request (struct soc *s, u32 cmd)
169 {
170 SOC_SETIMASK(s, s->imask & ~(cmd & SOC_CMD_REQ_QALL));
171 SOD(("imask %08lx %08lx\n", s->imask, sbus_readl(s->regs + IMASK)));
172
173 SOD(("Queues available %08x OUT %X %X\n", cmd,
174 xram_get_8((xram_p)&s->req[0].hw_cq->out),
175 xram_get_8((xram_p)&s->req[0].hw_cq->out)))
176 if (s->port[s->curr_port].fc.state != FC_STATE_OFFLINE) {
177 fcp_queue_empty ((fc_channel *)&(s->port[s->curr_port]));
178 if (((s->req[1].in + 1) & s->req[1].last) != (s->req[1].out))
179 fcp_queue_empty ((fc_channel *)&(s->port[1 - s->curr_port]));
180 } else {
181 fcp_queue_empty ((fc_channel *)&(s->port[1 - s->curr_port]));
182 }
183 if (s->port[1 - s->curr_port].fc.state != FC_STATE_OFFLINE)
184 s->curr_port ^= 1;
185 }
186
187 static void inline soc_unsolicited (struct soc *s)
188 {
189 soc_rsp *hwrsp, *hwrspc;
190 soc_cq *sw_cq;
191 int count;
192 int status;
193 int flags;
194 fc_channel *fc;
195
196 sw_cq = &s->rsp[SOC_UNSOLICITED_RSP_Q];
197 if (sw_cq->pool == NULL)
198 sw_cq->pool = (soc_req *)
199 (s->xram + (xram_get_32low ((xram_p)&sw_cq->hw_cq->address)));
200
201 sw_cq->in = xram_get_8 ((xram_p)&sw_cq->hw_cq->in);
202 SOD (("soc_unsolicited, %d packets arrived\n", (sw_cq->in - sw_cq->out) & sw_cq->last))
203 while (sw_cq->in != sw_cq->out) {
204 /* ...real work per entry here... */
205 hwrsp = (soc_rsp *)sw_cq->pool + sw_cq->out;
206
207 hwrspc = NULL;
208 flags = xram_get_16 ((xram_p)&hwrsp->shdr.flags);
209 count = xram_get_8 ((xram_p)&hwrsp->count);
210 fc = (fc_channel *)&s->port[flags & SOC_PORT_B];
211 SOD(("FC %08lx fcp_state_change %08lx\n",
212 (long)fc, (long)fc->fcp_state_change))
213
214 if (count != 1) {
215 /* Ugh, continuation entries */
216 u8 in;
217
218 if (count != 2) {
219 printk("%s: Too many continuations entries %d\n",
220 fc->name, count);
221 goto update_out;
222 }
223
224 in = sw_cq->in;
225 if (in < sw_cq->out) in += sw_cq->last + 1;
226 if (in < sw_cq->out + 2) {
227 /* Ask the hardware if they haven't arrived yet. */
228 sbus_writel((sw_cq->out << 24) |
229 (SOC_CMD_RSP_QALL &
230 ~(SOC_CMD_RSP_Q0 << SOC_UNSOLICITED_RSP_Q)),
231 s->regs + CMD);
232
233 /* Read it, so that we're sure it has been updated */
234 sbus_readl(s->regs + CMD);
235 sw_cq->in = xram_get_8 ((xram_p)&sw_cq->hw_cq->in);
236 in = sw_cq->in;
237 if (in < sw_cq->out)
238 in += sw_cq->last + 1;
239 if (in < sw_cq->out + 2) /* Nothing came, let us wait */
240 return;
241 }
242 if (sw_cq->out == sw_cq->last)
243 hwrspc = (soc_rsp *)sw_cq->pool;
244 else
245 hwrspc = hwrsp + 1;
246 }
247
248 switch (flags & ~SOC_PORT_B) {
249 case SOC_STATUS:
250 status = xram_get_32low ((xram_p)&hwrsp->status);
251 switch (status) {
252 case SOC_ONLINE:
253 SOD(("State change to ONLINE\n"));
254 fcp_state_change(fc, FC_STATE_ONLINE);
255 break;
256 case SOC_OFFLINE:
257 SOD(("State change to OFFLINE\n"));
258 fcp_state_change(fc, FC_STATE_OFFLINE);
259 break;
260 default:
261 printk ("%s: Unknown STATUS no %d\n",
262 fc->name, status);
263 break;
264 }
265 break;
266 case (SOC_UNSOLICITED|SOC_FC_HDR):
267 {
268 int r_ctl = xram_get_8 ((xram_p)&hwrsp->fchdr);
269 unsigned len;
270 char buf[64];
271
272 if ((r_ctl & 0xf0) == R_CTL_EXTENDED_SVC) {
273 len = xram_get_32 ((xram_p)&hwrsp->shdr.bytecnt);
274 if (len < 4 || !hwrspc) {
275 printk ("%s: Invalid R_CTL %02x "
276 "continuation entries\n",
277 fc->name, r_ctl);
278 } else {
279 if (len > 60)
280 len = 60;
281 xram_copy_from (buf, (xram_p)hwrspc,
282 (len + 3) & ~3);
283 if (*(u32 *)buf == LS_DISPLAY) {
284 int i;
285
286 for (i = 4; i < len; i++)
287 if (buf[i] == '\n')
288 buf[i] = ' ';
289 buf[len] = 0;
290 printk ("%s message: %s\n",
291 fc->name, buf + 4);
292 } else {
293 printk ("%s: Unknown LS_CMD "
294 "%02x\n", fc->name,
295 buf[0]);
296 }
297 }
298 } else {
299 printk ("%s: Unsolicited R_CTL %02x "
300 "not handled\n", fc->name, r_ctl);
301 }
302 }
303 break;
304 default:
305 printk ("%s: Unexpected flags %08x\n", fc->name, flags);
306 break;
307 };
308 update_out:
309 if (++sw_cq->out > sw_cq->last) {
310 sw_cq->seqno++;
311 sw_cq->out = 0;
312 }
313
314 if (hwrspc) {
315 if (++sw_cq->out > sw_cq->last) {
316 sw_cq->seqno++;
317 sw_cq->out = 0;
318 }
319 }
320
321 if (sw_cq->out == sw_cq->in) {
322 sw_cq->in = xram_get_8 ((xram_p)&sw_cq->hw_cq->in);
323 if (sw_cq->out == sw_cq->in) {
324 /* Tell the hardware about it */
325 sbus_writel((sw_cq->out << 24) |
326 (SOC_CMD_RSP_QALL &
327 ~(SOC_CMD_RSP_Q0 << SOC_UNSOLICITED_RSP_Q)),
328 s->regs + CMD);
329
330 /* Read it, so that we're sure it has been updated */
331 sbus_readl(s->regs + CMD);
332 sw_cq->in = xram_get_8 ((xram_p)&sw_cq->hw_cq->in);
333 }
334 }
335 }
336 }
337
338 static void soc_intr(int irq, void *dev_id, struct pt_regs *regs)
339 {
340 u32 cmd;
341 unsigned long flags;
342 register struct soc *s = (struct soc *)dev_id;
343
344 spin_lock_irqsave(&io_request_lock, flags);
345 cmd = sbus_readl(s->regs + CMD);
346 for (; (cmd = SOC_INTR (s, cmd)); cmd = sbus_readl(s->regs + CMD)) {
347 if (cmd & SOC_CMD_RSP_Q1) soc_unsolicited (s);
348 if (cmd & SOC_CMD_RSP_Q0) soc_solicited (s);
349 if (cmd & SOC_CMD_REQ_QALL) soc_request (s, cmd);
350 }
351 spin_unlock_irqrestore(&io_request_lock, flags);
352 }
353
354 #define TOKEN(proto, port, token) (((proto)<<12)|(token)|(port))
355
356 static int soc_hw_enque (fc_channel *fc, fcp_cmnd *fcmd)
357 {
358 soc_port *port = (soc_port *)fc;
359 struct soc *s = port->s;
360 int qno;
361 soc_cq *sw_cq;
362 int cq_next_in;
363 soc_req *request;
364 fc_hdr *fch;
365 int i;
366
367 if (fcmd->proto == TYPE_SCSI_FCP)
368 qno = 1;
369 else
370 qno = 0;
371 SOD(("Putting a FCP packet type %d into hw queue %d\n", fcmd->proto, qno))
372 if (s->imask & (SOC_IMASK_REQ_Q0 << qno)) {
373 SOD(("EIO %08x\n", s->imask))
374 return -EIO;
375 }
376 sw_cq = s->req + qno;
377 cq_next_in = (sw_cq->in + 1) & sw_cq->last;
378
379 if (cq_next_in == sw_cq->out &&
380 cq_next_in == (sw_cq->out = xram_get_8((xram_p)&sw_cq->hw_cq->out))) {
381 SOD(("%d IN %d OUT %d LAST %d\n", qno, sw_cq->in, sw_cq->out, sw_cq->last))
382 SOC_SETIMASK(s, s->imask | (SOC_IMASK_REQ_Q0 << qno));
383 SOD(("imask %08lx %08lx\n", s->imask, sbus_readl(s->regs + IMASK)));
384 /* If queue is full, just say NO */
385 return -EBUSY;
386 }
387
388 request = sw_cq->pool + sw_cq->in;
389 fch = &request->fchdr;
390
391 switch (fcmd->proto) {
392 case TYPE_SCSI_FCP:
393 request->shdr.token = TOKEN(TYPE_SCSI_FCP, port->mask, fcmd->token);
394 request->data[0].base = fc->dma_scsi_cmd + fcmd->token * sizeof(fcp_cmd);
395 request->data[0].count = sizeof(fcp_cmd);
396 request->data[1].base = fc->dma_scsi_rsp + fcmd->token * fc->rsp_size;
397 request->data[1].count = fc->rsp_size;
398 if (fcmd->data) {
399 request->shdr.segcnt = 3;
400 i = fc->scsi_cmd_pool[fcmd->token].fcp_data_len;
401 request->shdr.bytecnt = i;
402 request->data[2].base = fcmd->data;
403 request->data[2].count = i;
404 request->type =
405 (fc->scsi_cmd_pool[fcmd->token].fcp_cntl & FCP_CNTL_WRITE) ?
406 SOC_CQTYPE_IO_WRITE : SOC_CQTYPE_IO_READ;
407 } else {
408 request->shdr.segcnt = 2;
409 request->shdr.bytecnt = 0;
410 request->data[2].base = 0;
411 request->data[2].count = 0;
412 request->type = SOC_CQTYPE_SIMPLE;
413 }
414 FILL_FCHDR_RCTL_DID(fch, R_CTL_COMMAND, fc->did);
415 FILL_FCHDR_SID(fch, fc->sid);
416 FILL_FCHDR_TYPE_FCTL(fch, TYPE_SCSI_FCP,
417 F_CTL_FIRST_SEQ | F_CTL_SEQ_INITIATIVE);
418 FILL_FCHDR_SEQ_DF_SEQ(fch, 0, 0, 0);
419 FILL_FCHDR_OXRX(fch, 0xffff, 0xffff);
420 fch->param = 0;
421 request->shdr.flags = port->flags;
422 request->shdr.class = 2;
423 break;
424
425 case PROTO_OFFLINE:
426 memset (request, 0, sizeof(*request));
427 request->shdr.token = TOKEN(PROTO_OFFLINE, port->mask, fcmd->token);
428 request->type = SOC_CQTYPE_OFFLINE;
429 FILL_FCHDR_RCTL_DID(fch, R_CTL_COMMAND, fc->did);
430 FILL_FCHDR_SID(fch, fc->sid);
431 FILL_FCHDR_TYPE_FCTL(fch, TYPE_SCSI_FCP,
432 F_CTL_FIRST_SEQ | F_CTL_SEQ_INITIATIVE);
433 FILL_FCHDR_SEQ_DF_SEQ(fch, 0, 0, 0);
434 FILL_FCHDR_OXRX(fch, 0xffff, 0xffff);
435 request->shdr.flags = port->flags;
436 break;
437
438 case PROTO_REPORT_AL_MAP:
439 /* SOC only supports Point-to-Point topology, no FC-AL, sorry... */
440 return -ENOSYS;
441
442 default:
443 request->shdr.token = TOKEN(fcmd->proto, port->mask, fcmd->token);
444 request->shdr.class = 2;
445 request->shdr.flags = port->flags;
446 memcpy (fch, &fcmd->fch, sizeof(fc_hdr));
447 request->data[0].count = fcmd->cmdlen;
448 request->data[1].count = fcmd->rsplen;
449 request->type = fcmd->class;
450 switch (fcmd->class) {
451 case FC_CLASS_OUTBOUND:
452 request->data[0].base = fcmd->cmd;
453 request->data[0].count = fcmd->cmdlen;
454 request->type = SOC_CQTYPE_OUTBOUND;
455 request->shdr.bytecnt = fcmd->cmdlen;
456 request->shdr.segcnt = 1;
457 break;
458 case FC_CLASS_INBOUND:
459 request->data[0].base = fcmd->rsp;
460 request->data[0].count = fcmd->rsplen;
461 request->type = SOC_CQTYPE_INBOUND;
462 request->shdr.bytecnt = 0;
463 request->shdr.segcnt = 1;
464 break;
465 case FC_CLASS_SIMPLE:
466 request->data[0].base = fcmd->cmd;
467 request->data[1].base = fcmd->rsp;
468 request->data[0].count = fcmd->cmdlen;
469 request->data[1].count = fcmd->rsplen;
470 request->type = SOC_CQTYPE_SIMPLE;
471 request->shdr.bytecnt = fcmd->cmdlen;
472 request->shdr.segcnt = 2;
473 break;
474 case FC_CLASS_IO_READ:
475 case FC_CLASS_IO_WRITE:
476 request->data[0].base = fcmd->cmd;
477 request->data[1].base = fcmd->rsp;
478 request->data[0].count = fcmd->cmdlen;
479 request->data[1].count = fcmd->rsplen;
480 request->type =
481 (fcmd->class == FC_CLASS_IO_READ) ?
482 SOC_CQTYPE_IO_READ : SOC_CQTYPE_IO_WRITE;
483 if (fcmd->data) {
484 request->data[2].base = fcmd->data;
485 request->data[2].count = fcmd->datalen;
486 request->shdr.bytecnt = fcmd->datalen;
487 request->shdr.segcnt = 3;
488 } else {
489 request->shdr.bytecnt = 0;
490 request->shdr.segcnt = 2;
491 }
492 break;
493 };
494 break;
495 };
496
497 request->count = 1;
498 request->flags = 0;
499 request->seqno = sw_cq->seqno;
500
501 /* And now tell the SOC about it */
502
503 if (++sw_cq->in > sw_cq->last) {
504 sw_cq->in = 0;
505 sw_cq->seqno++;
506 }
507
508 SOD(("Putting %08x into cmd\n",
509 SOC_CMD_RSP_QALL | (sw_cq->in << 24) | (SOC_CMD_REQ_Q0 << qno)))
510
511 sbus_writel(SOC_CMD_RSP_QALL | (sw_cq->in << 24) | (SOC_CMD_REQ_Q0 << qno),
512 s->regs + CMD);
513
514 /* Read so that command is completed. */
515 sbus_readl(s->regs + CMD);
516
517 return 0;
518 }
519
520 static inline void soc_download_fw(struct soc *s)
521 {
522 #ifdef HAVE_SOC_UCODE
523 xram_copy_to (s->xram, soc_ucode, sizeof(soc_ucode));
524 xram_bzero (s->xram + sizeof(soc_ucode), 32768 - sizeof(soc_ucode));
525 #endif
526 }
527
528 /* Check for what the best SBUS burst we can use happens
529 * to be on this machine.
530 */
531 static inline void soc_init_bursts(struct soc *s, struct sbus_dev *sdev)
532 {
533 int bsizes, bsizes_more;
534
535 bsizes = (prom_getintdefault(sdev->prom_node,"burst-sizes",0xff) & 0xff);
536 bsizes_more = (prom_getintdefault(sdev->bus->prom_node, "burst-sizes", 0xff) & 0xff);
537 bsizes &= bsizes_more;
538 if ((bsizes & 0x7f) == 0x7f)
539 s->cfg = SOC_CFG_BURST_64;
540 else if ((bsizes & 0x3f) == 0x3f)
541 s->cfg = SOC_CFG_BURST_32;
542 else if ((bsizes & 0x1f) == 0x1f)
543 s->cfg = SOC_CFG_BURST_16;
544 else
545 s->cfg = SOC_CFG_BURST_4;
546 }
547
548 static inline void soc_init(struct sbus_dev *sdev, int no)
549 {
550 unsigned char tmp[60];
551 int propl;
552 struct soc *s;
553 static int version_printed = 0;
554 soc_hw_cq cq[8];
555 int size, i;
556 int irq;
557
558 s = kmalloc (sizeof (struct soc), GFP_KERNEL);
559 if (s == NULL)
560 return;
561 memset (s, 0, sizeof(struct soc));
562 s->soc_no = no;
563
564 SOD(("socs %08lx soc_intr %08lx soc_hw_enque %08x\n",
565 (long)socs, (long)soc_intr, (long)soc_hw_enque))
566 if (version_printed++ == 0)
567 printk (version);
568 #ifdef MODULE
569 s->port[0].fc.module = &__this_module;
570 s->port[1].fc.module = &__this_module;
571 #else
572 s->port[0].fc.module = NULL;
573 s->port[1].fc.module = NULL;
574 #endif
575
576 s->next = socs;
577 socs = s;
578 s->port[0].fc.dev = sdev;
579 s->port[1].fc.dev = sdev;
580 s->port[0].s = s;
581 s->port[1].s = s;
582
583 s->port[0].fc.next = &s->port[1].fc;
584
585 /* World Wide Name of SOC */
586 propl = prom_getproperty (sdev->prom_node, "soc-wwn", tmp, sizeof(tmp));
587 if (propl != sizeof (fc_wwn)) {
588 s->wwn.naaid = NAAID_IEEE;
589 s->wwn.lo = 0x12345678;
590 } else
591 memcpy (&s->wwn, tmp, sizeof (fc_wwn));
592
593 propl = prom_getproperty (sdev->prom_node, "port-wwns", tmp, sizeof(tmp));
594 if (propl != 2 * sizeof (fc_wwn)) {
595 s->port[0].fc.wwn_nport.naaid = NAAID_IEEE_EXT;
596 s->port[0].fc.wwn_nport.hi = s->wwn.hi;
597 s->port[0].fc.wwn_nport.lo = s->wwn.lo;
598 s->port[1].fc.wwn_nport.naaid = NAAID_IEEE_EXT;
599 s->port[1].fc.wwn_nport.nportid = 1;
600 s->port[1].fc.wwn_nport.hi = s->wwn.hi;
601 s->port[1].fc.wwn_nport.lo = s->wwn.lo;
602 } else {
603 memcpy (&s->port[0].fc.wwn_nport, tmp, sizeof (fc_wwn));
604 memcpy (&s->port[1].fc.wwn_nport, tmp + sizeof (fc_wwn), sizeof (fc_wwn));
605 }
606 memcpy (&s->port[0].fc.wwn_node, &s->wwn, sizeof (fc_wwn));
607 memcpy (&s->port[1].fc.wwn_node, &s->wwn, sizeof (fc_wwn));
608 SOD(("Got wwns %08x%08x ports %08x%08x and %08x%08x\n",
609 *(u32 *)&s->port[0].fc.wwn_nport, s->port[0].fc.wwn_nport.lo,
610 *(u32 *)&s->port[0].fc.wwn_nport, s->port[0].fc.wwn_nport.lo,
611 *(u32 *)&s->port[1].fc.wwn_nport, s->port[1].fc.wwn_nport.lo))
612
613 s->port[0].fc.sid = 1;
614 s->port[1].fc.sid = 17;
615 s->port[0].fc.did = 2;
616 s->port[1].fc.did = 18;
617
618 s->port[0].fc.reset = soc_reset;
619 s->port[1].fc.reset = soc_reset;
620
621 if (sdev->num_registers == 1) {
622 /* Probably SunFire onboard SOC */
623 s->xram = sbus_ioremap(&sdev->resource[0], 0,
624 0x10000UL, "soc xram");
625 s->regs = sbus_ioremap(&sdev->resource[0], 0x10000UL,
626 0x10UL, "soc regs");
627 } else {
628 /* Probably SOC sbus card */
629 s->xram = sbus_ioremap(&sdev->resource[1], 0,
630 sdev->reg_addrs[1].reg_size, "soc xram");
631 s->regs = sbus_ioremap(&sdev->resource[2], 0,
632 sdev->reg_addrs[2].reg_size, "soc regs");
633 }
634
635 soc_init_bursts(s, sdev);
636
637 SOD(("Disabling SOC\n"))
638
639 soc_disable (s);
640
641 irq = sdev->irqs[0];
642
643 if (request_irq (irq, soc_intr, SA_SHIRQ, "SOC", (void *)s)) {
644 soc_printk ("Cannot order irq %d to go\n", irq);
645 socs = s->next;
646 return;
647 }
648
649 SOD(("SOC uses IRQ%s\n", __irq_itoa(irq)))
650
651 s->port[0].fc.irq = irq;
652 s->port[1].fc.irq = irq;
653
654 sprintf (s->port[0].fc.name, "soc%d port A", no);
655 sprintf (s->port[1].fc.name, "soc%d port B", no);
656 s->port[0].flags = SOC_FC_HDR | SOC_PORT_A;
657 s->port[1].flags = SOC_FC_HDR | SOC_PORT_B;
658 s->port[1].mask = (1 << 11);
659
660 s->port[0].fc.hw_enque = soc_hw_enque;
661 s->port[1].fc.hw_enque = soc_hw_enque;
662
663 soc_download_fw (s);
664
665 SOD(("Downloaded firmware\n"))
666
667 /* Now setup xram circular queues */
668 memset (cq, 0, sizeof(cq));
669
670 size = (SOC_CQ_REQ0_SIZE + SOC_CQ_REQ1_SIZE) * sizeof(soc_req);
671 s->req_cpu = sbus_alloc_consistent(sdev, size, &s->req_dvma);
672 s->req[0].pool = s->req_cpu;
673 cq[0].address = s->req_dvma;
674 s->req[1].pool = s->req[0].pool + SOC_CQ_REQ0_SIZE;
675
676 s->req[0].hw_cq = (soc_hw_cq *)(s->xram + SOC_CQ_REQ_OFFSET);
677 s->req[1].hw_cq = (soc_hw_cq *)(s->xram + SOC_CQ_REQ_OFFSET + sizeof(soc_hw_cq));
678 s->rsp[0].hw_cq = (soc_hw_cq *)(s->xram + SOC_CQ_RSP_OFFSET);
679 s->rsp[1].hw_cq = (soc_hw_cq *)(s->xram + SOC_CQ_RSP_OFFSET + sizeof(soc_hw_cq));
680
681 cq[1].address = cq[0].address + (SOC_CQ_REQ0_SIZE * sizeof(soc_req));
682 cq[4].address = 1;
683 cq[5].address = 1;
684 cq[0].last = SOC_CQ_REQ0_SIZE - 1;
685 cq[1].last = SOC_CQ_REQ1_SIZE - 1;
686 cq[4].last = SOC_CQ_RSP0_SIZE - 1;
687 cq[5].last = SOC_CQ_RSP1_SIZE - 1;
688 for (i = 0; i < 8; i++)
689 cq[i].seqno = 1;
690
691 s->req[0].last = SOC_CQ_REQ0_SIZE - 1;
692 s->req[1].last = SOC_CQ_REQ1_SIZE - 1;
693 s->rsp[0].last = SOC_CQ_RSP0_SIZE - 1;
694 s->rsp[1].last = SOC_CQ_RSP1_SIZE - 1;
695
696 s->req[0].seqno = 1;
697 s->req[1].seqno = 1;
698 s->rsp[0].seqno = 1;
699 s->rsp[1].seqno = 1;
700
701 xram_copy_to (s->xram + SOC_CQ_REQ_OFFSET, cq, sizeof(cq));
702
703 /* Make our sw copy of SOC service parameters */
704 xram_copy_from (s->serv_params, s->xram + 0x140, sizeof (s->serv_params));
705
706 s->port[0].fc.common_svc = (common_svc_parm *)s->serv_params;
707 s->port[0].fc.class_svcs = (svc_parm *)(s->serv_params + 0x20);
708 s->port[1].fc.common_svc = (common_svc_parm *)&s->serv_params;
709 s->port[1].fc.class_svcs = (svc_parm *)(s->serv_params + 0x20);
710
711 soc_enable (s);
712
713 SOD(("Enabled SOC\n"))
714 }
715
716 #ifndef MODULE
717 int __init soc_probe(void)
718 #else
719 int init_module(void)
720 #endif
721 {
722 struct sbus_bus *sbus;
723 struct sbus_dev *sdev = 0;
724 struct soc *s;
725 int cards = 0;
726
727 for_each_sbus(sbus) {
728 for_each_sbusdev(sdev, sbus) {
729 if(!strcmp(sdev->prom_name, "SUNW,soc")) {
730 soc_init(sdev, cards);
731 cards++;
732 }
733 }
734 }
735 if (!cards) return -EIO;
736
737 for_each_soc(s)
738 if (s->next)
739 s->port[1].fc.next = &s->next->port[0].fc;
740 fcp_init (&socs->port[0].fc);
741 return 0;
742 }
743
744 EXPORT_NO_SYMBOLS;
745
746 #ifdef MODULE
747 void cleanup_module(void)
748 {
749 struct soc *s;
750 int irq;
751 struct sbus_dev *sdev;
752
753 for_each_soc(s) {
754 irq = s->port[0].fc.irq;
755 disable_irq (irq);
756 free_irq (irq, s);
757
758 fcp_release(&(s->port[0].fc), 2);
759
760 sdev = s->port[0].fc.dev;
761 if (sdev->num_registers == 1) {
762 sbus_iounmap(s->xram, 0x10000UL);
763 sbus_iounmap(s->regs, 0x10UL);
764 } else {
765 sbus_iounmap(s->xram, sdev->reg_addrs[1].reg_size);
766 sbus_iounmap(s->regs, sdev->reg_addrs[2].reg_size);
767 }
768 sbus_free_consistent(sdev,
769 (SOC_CQ_REQ0_SIZE+SOC_CQ_REQ1_SIZE)*sizeof(soc_req),
770 s->req_cpu, s->req_dvma);
771 }
772 }
773 #endif
Mirror of the linux-mips.org kernel tree