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/slab.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/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)
64 struct soc *socs = NULL;
65
soc_disable(struct soc * s)66 static 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
soc_enable(struct soc * s)72 static 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
soc_reset(fc_channel * fc)82 static 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
soc_solicited(struct soc * s)106 static void inline soc_solicited (struct soc *s)
107 {
108 fc_hdr fchdr;
109 soc_rsp *hwrsp;
110 soc_cq *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 *)
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 *)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
soc_request(struct soc * s,u32 cmd)167 static void inline 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
soc_unsolicited(struct soc * s)186 static void inline soc_unsolicited (struct soc *s)
187 {
188 soc_rsp *hwrsp, *hwrspc;
189 soc_cq *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 *)
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 *)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 *)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 };
307 update_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
soc_intr(int irq,void * dev_id,struct pt_regs * regs)337 static void 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(&io_request_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(&io_request_lock, flags);
351 }
352
353 #define TOKEN(proto, port, token) (((proto)<<12)|(token)|(port))
354
soc_hw_enque(fc_channel * fc,fcp_cmnd * fcmd)355 static int soc_hw_enque (fc_channel *fc, fcp_cmnd *fcmd)
356 {
357 soc_port *port = (soc_port *)fc;
358 struct soc *s = port->s;
359 int qno;
360 soc_cq *sw_cq;
361 int cq_next_in;
362 soc_req *request;
363 fc_hdr *fch;
364 int i;
365
366 if (fcmd->proto == TYPE_SCSI_FCP)
367 qno = 1;
368 else
369 qno = 0;
370 SOD(("Putting a FCP packet type %d into hw queue %d\n", fcmd->proto, qno))
371 if (s->imask & (SOC_IMASK_REQ_Q0 << qno)) {
372 SOD(("EIO %08x\n", s->imask))
373 return -EIO;
374 }
375 sw_cq = s->req + qno;
376 cq_next_in = (sw_cq->in + 1) & sw_cq->last;
377
378 if (cq_next_in == sw_cq->out &&
379 cq_next_in == (sw_cq->out = xram_get_8((xram_p)&sw_cq->hw_cq->out))) {
380 SOD(("%d IN %d OUT %d LAST %d\n", qno, sw_cq->in, sw_cq->out, sw_cq->last))
381 SOC_SETIMASK(s, s->imask | (SOC_IMASK_REQ_Q0 << qno));
382 SOD(("imask %08lx %08lx\n", s->imask, sbus_readl(s->regs + IMASK)));
383 /* If queue is full, just say NO */
384 return -EBUSY;
385 }
386
387 request = sw_cq->pool + sw_cq->in;
388 fch = &request->fchdr;
389
390 switch (fcmd->proto) {
391 case TYPE_SCSI_FCP:
392 request->shdr.token = TOKEN(TYPE_SCSI_FCP, port->mask, fcmd->token);
393 request->data[0].base = fc->dma_scsi_cmd + fcmd->token * sizeof(fcp_cmd);
394 request->data[0].count = sizeof(fcp_cmd);
395 request->data[1].base = fc->dma_scsi_rsp + fcmd->token * fc->rsp_size;
396 request->data[1].count = fc->rsp_size;
397 if (fcmd->data) {
398 request->shdr.segcnt = 3;
399 i = fc->scsi_cmd_pool[fcmd->token].fcp_data_len;
400 request->shdr.bytecnt = i;
401 request->data[2].base = fcmd->data;
402 request->data[2].count = i;
403 request->type =
404 (fc->scsi_cmd_pool[fcmd->token].fcp_cntl & FCP_CNTL_WRITE) ?
405 SOC_CQTYPE_IO_WRITE : SOC_CQTYPE_IO_READ;
406 } else {
407 request->shdr.segcnt = 2;
408 request->shdr.bytecnt = 0;
409 request->data[2].base = 0;
410 request->data[2].count = 0;
411 request->type = SOC_CQTYPE_SIMPLE;
412 }
413 FILL_FCHDR_RCTL_DID(fch, R_CTL_COMMAND, fc->did);
414 FILL_FCHDR_SID(fch, fc->sid);
415 FILL_FCHDR_TYPE_FCTL(fch, TYPE_SCSI_FCP,
416 F_CTL_FIRST_SEQ | F_CTL_SEQ_INITIATIVE);
417 FILL_FCHDR_SEQ_DF_SEQ(fch, 0, 0, 0);
418 FILL_FCHDR_OXRX(fch, 0xffff, 0xffff);
419 fch->param = 0;
420 request->shdr.flags = port->flags;
421 request->shdr.class = 2;
422 break;
423
424 case PROTO_OFFLINE:
425 memset (request, 0, sizeof(*request));
426 request->shdr.token = TOKEN(PROTO_OFFLINE, port->mask, fcmd->token);
427 request->type = SOC_CQTYPE_OFFLINE;
428 FILL_FCHDR_RCTL_DID(fch, R_CTL_COMMAND, fc->did);
429 FILL_FCHDR_SID(fch, fc->sid);
430 FILL_FCHDR_TYPE_FCTL(fch, TYPE_SCSI_FCP,
431 F_CTL_FIRST_SEQ | F_CTL_SEQ_INITIATIVE);
432 FILL_FCHDR_SEQ_DF_SEQ(fch, 0, 0, 0);
433 FILL_FCHDR_OXRX(fch, 0xffff, 0xffff);
434 request->shdr.flags = port->flags;
435 break;
436
437 case PROTO_REPORT_AL_MAP:
438 /* SOC only supports Point-to-Point topology, no FC-AL, sorry... */
439 return -ENOSYS;
440
441 default:
442 request->shdr.token = TOKEN(fcmd->proto, port->mask, fcmd->token);
443 request->shdr.class = 2;
444 request->shdr.flags = port->flags;
445 memcpy (fch, &fcmd->fch, sizeof(fc_hdr));
446 request->data[0].count = fcmd->cmdlen;
447 request->data[1].count = fcmd->rsplen;
448 request->type = fcmd->class;
449 switch (fcmd->class) {
450 case FC_CLASS_OUTBOUND:
451 request->data[0].base = fcmd->cmd;
452 request->data[0].count = fcmd->cmdlen;
453 request->type = SOC_CQTYPE_OUTBOUND;
454 request->shdr.bytecnt = fcmd->cmdlen;
455 request->shdr.segcnt = 1;
456 break;
457 case FC_CLASS_INBOUND:
458 request->data[0].base = fcmd->rsp;
459 request->data[0].count = fcmd->rsplen;
460 request->type = SOC_CQTYPE_INBOUND;
461 request->shdr.bytecnt = 0;
462 request->shdr.segcnt = 1;
463 break;
464 case FC_CLASS_SIMPLE:
465 request->data[0].base = fcmd->cmd;
466 request->data[1].base = fcmd->rsp;
467 request->data[0].count = fcmd->cmdlen;
468 request->data[1].count = fcmd->rsplen;
469 request->type = SOC_CQTYPE_SIMPLE;
470 request->shdr.bytecnt = fcmd->cmdlen;
471 request->shdr.segcnt = 2;
472 break;
473 case FC_CLASS_IO_READ:
474 case FC_CLASS_IO_WRITE:
475 request->data[0].base = fcmd->cmd;
476 request->data[1].base = fcmd->rsp;
477 request->data[0].count = fcmd->cmdlen;
478 request->data[1].count = fcmd->rsplen;
479 request->type =
480 (fcmd->class == FC_CLASS_IO_READ) ?
481 SOC_CQTYPE_IO_READ : SOC_CQTYPE_IO_WRITE;
482 if (fcmd->data) {
483 request->data[2].base = fcmd->data;
484 request->data[2].count = fcmd->datalen;
485 request->shdr.bytecnt = fcmd->datalen;
486 request->shdr.segcnt = 3;
487 } else {
488 request->shdr.bytecnt = 0;
489 request->shdr.segcnt = 2;
490 }
491 break;
492 };
493 break;
494 };
495
496 request->count = 1;
497 request->flags = 0;
498 request->seqno = sw_cq->seqno;
499
500 /* And now tell the SOC about it */
501
502 if (++sw_cq->in > sw_cq->last) {
503 sw_cq->in = 0;
504 sw_cq->seqno++;
505 }
506
507 SOD(("Putting %08x into cmd\n",
508 SOC_CMD_RSP_QALL | (sw_cq->in << 24) | (SOC_CMD_REQ_Q0 << qno)))
509
510 sbus_writel(SOC_CMD_RSP_QALL | (sw_cq->in << 24) | (SOC_CMD_REQ_Q0 << qno),
511 s->regs + CMD);
512
513 /* Read so that command is completed. */
514 sbus_readl(s->regs + CMD);
515
516 return 0;
517 }
518
soc_download_fw(struct soc * s)519 static inline void soc_download_fw(struct soc *s)
520 {
521 #ifdef HAVE_SOC_UCODE
522 xram_copy_to (s->xram, soc_ucode, sizeof(soc_ucode));
523 xram_bzero (s->xram + sizeof(soc_ucode), 32768 - sizeof(soc_ucode));
524 #endif
525 }
526
527 /* Check for what the best SBUS burst we can use happens
528 * to be on this machine.
529 */
soc_init_bursts(struct soc * s,struct sbus_dev * sdev)530 static inline void soc_init_bursts(struct soc *s, struct sbus_dev *sdev)
531 {
532 int bsizes, bsizes_more;
533
534 bsizes = (prom_getintdefault(sdev->prom_node,"burst-sizes",0xff) & 0xff);
535 bsizes_more = (prom_getintdefault(sdev->bus->prom_node, "burst-sizes", 0xff) & 0xff);
536 bsizes &= bsizes_more;
537 if ((bsizes & 0x7f) == 0x7f)
538 s->cfg = SOC_CFG_BURST_64;
539 else if ((bsizes & 0x3f) == 0x3f)
540 s->cfg = SOC_CFG_BURST_32;
541 else if ((bsizes & 0x1f) == 0x1f)
542 s->cfg = SOC_CFG_BURST_16;
543 else
544 s->cfg = SOC_CFG_BURST_4;
545 }
546
soc_init(struct sbus_dev * sdev,int no)547 static inline void soc_init(struct sbus_dev *sdev, int no)
548 {
549 unsigned char tmp[60];
550 int propl;
551 struct soc *s;
552 static int version_printed = 0;
553 soc_hw_cq cq[8];
554 int size, i;
555 int irq;
556
557 s = kmalloc (sizeof (struct soc), GFP_KERNEL);
558 if (s == NULL)
559 return;
560 memset (s, 0, sizeof(struct soc));
561 s->soc_no = no;
562
563 SOD(("socs %08lx soc_intr %08lx soc_hw_enque %08x\n",
564 (long)socs, (long)soc_intr, (long)soc_hw_enque))
565 if (version_printed++ == 0)
566 printk (version);
567
568 s->port[0].fc.module = THIS_MODULE;
569 s->port[1].fc.module = THIS_MODULE;
570
571 s->next = socs;
572 socs = s;
573 s->port[0].fc.dev = sdev;
574 s->port[1].fc.dev = sdev;
575 s->port[0].s = s;
576 s->port[1].s = s;
577
578 s->port[0].fc.next = &s->port[1].fc;
579
580 /* World Wide Name of SOC */
581 propl = prom_getproperty (sdev->prom_node, "soc-wwn", tmp, sizeof(tmp));
582 if (propl != sizeof (fc_wwn)) {
583 s->wwn.naaid = NAAID_IEEE;
584 s->wwn.lo = 0x12345678;
585 } else
586 memcpy (&s->wwn, tmp, sizeof (fc_wwn));
587
588 propl = prom_getproperty (sdev->prom_node, "port-wwns", tmp, sizeof(tmp));
589 if (propl != 2 * sizeof (fc_wwn)) {
590 s->port[0].fc.wwn_nport.naaid = NAAID_IEEE_EXT;
591 s->port[0].fc.wwn_nport.hi = s->wwn.hi;
592 s->port[0].fc.wwn_nport.lo = s->wwn.lo;
593 s->port[1].fc.wwn_nport.naaid = NAAID_IEEE_EXT;
594 s->port[1].fc.wwn_nport.nportid = 1;
595 s->port[1].fc.wwn_nport.hi = s->wwn.hi;
596 s->port[1].fc.wwn_nport.lo = s->wwn.lo;
597 } else {
598 memcpy (&s->port[0].fc.wwn_nport, tmp, sizeof (fc_wwn));
599 memcpy (&s->port[1].fc.wwn_nport, tmp + sizeof (fc_wwn), sizeof (fc_wwn));
600 }
601 memcpy (&s->port[0].fc.wwn_node, &s->wwn, sizeof (fc_wwn));
602 memcpy (&s->port[1].fc.wwn_node, &s->wwn, sizeof (fc_wwn));
603 SOD(("Got wwns %08x%08x ports %08x%08x and %08x%08x\n",
604 *(u32 *)&s->port[0].fc.wwn_nport, s->port[0].fc.wwn_nport.lo,
605 *(u32 *)&s->port[0].fc.wwn_nport, s->port[0].fc.wwn_nport.lo,
606 *(u32 *)&s->port[1].fc.wwn_nport, s->port[1].fc.wwn_nport.lo))
607
608 s->port[0].fc.sid = 1;
609 s->port[1].fc.sid = 17;
610 s->port[0].fc.did = 2;
611 s->port[1].fc.did = 18;
612
613 s->port[0].fc.reset = soc_reset;
614 s->port[1].fc.reset = soc_reset;
615
616 if (sdev->num_registers == 1) {
617 /* Probably SunFire onboard SOC */
618 s->xram = sbus_ioremap(&sdev->resource[0], 0,
619 0x10000UL, "soc xram");
620 s->regs = sbus_ioremap(&sdev->resource[0], 0x10000UL,
621 0x10UL, "soc regs");
622 } else {
623 /* Probably SOC sbus card */
624 s->xram = sbus_ioremap(&sdev->resource[1], 0,
625 sdev->reg_addrs[1].reg_size, "soc xram");
626 s->regs = sbus_ioremap(&sdev->resource[2], 0,
627 sdev->reg_addrs[2].reg_size, "soc regs");
628 }
629
630 soc_init_bursts(s, sdev);
631
632 SOD(("Disabling SOC\n"))
633
634 soc_disable (s);
635
636 irq = sdev->irqs[0];
637
638 if (request_irq (irq, soc_intr, SA_SHIRQ, "SOC", (void *)s)) {
639 soc_printk ("Cannot order irq %d to go\n", irq);
640 socs = s->next;
641 return;
642 }
643
644 SOD(("SOC uses IRQ%s\n", __irq_itoa(irq)))
645
646 s->port[0].fc.irq = irq;
647 s->port[1].fc.irq = irq;
648
649 sprintf (s->port[0].fc.name, "soc%d port A", no);
650 sprintf (s->port[1].fc.name, "soc%d port B", no);
651 s->port[0].flags = SOC_FC_HDR | SOC_PORT_A;
652 s->port[1].flags = SOC_FC_HDR | SOC_PORT_B;
653 s->port[1].mask = (1 << 11);
654
655 s->port[0].fc.hw_enque = soc_hw_enque;
656 s->port[1].fc.hw_enque = soc_hw_enque;
657
658 soc_download_fw (s);
659
660 SOD(("Downloaded firmware\n"))
661
662 /* Now setup xram circular queues */
663 memset (cq, 0, sizeof(cq));
664
665 size = (SOC_CQ_REQ0_SIZE + SOC_CQ_REQ1_SIZE) * sizeof(soc_req);
666 s->req_cpu = sbus_alloc_consistent(sdev, size, &s->req_dvma);
667 s->req[0].pool = s->req_cpu;
668 cq[0].address = s->req_dvma;
669 s->req[1].pool = s->req[0].pool + SOC_CQ_REQ0_SIZE;
670
671 s->req[0].hw_cq = (soc_hw_cq *)(s->xram + SOC_CQ_REQ_OFFSET);
672 s->req[1].hw_cq = (soc_hw_cq *)(s->xram + SOC_CQ_REQ_OFFSET + sizeof(soc_hw_cq));
673 s->rsp[0].hw_cq = (soc_hw_cq *)(s->xram + SOC_CQ_RSP_OFFSET);
674 s->rsp[1].hw_cq = (soc_hw_cq *)(s->xram + SOC_CQ_RSP_OFFSET + sizeof(soc_hw_cq));
675
676 cq[1].address = cq[0].address + (SOC_CQ_REQ0_SIZE * sizeof(soc_req));
677 cq[4].address = 1;
678 cq[5].address = 1;
679 cq[0].last = SOC_CQ_REQ0_SIZE - 1;
680 cq[1].last = SOC_CQ_REQ1_SIZE - 1;
681 cq[4].last = SOC_CQ_RSP0_SIZE - 1;
682 cq[5].last = SOC_CQ_RSP1_SIZE - 1;
683 for (i = 0; i < 8; i++)
684 cq[i].seqno = 1;
685
686 s->req[0].last = SOC_CQ_REQ0_SIZE - 1;
687 s->req[1].last = SOC_CQ_REQ1_SIZE - 1;
688 s->rsp[0].last = SOC_CQ_RSP0_SIZE - 1;
689 s->rsp[1].last = SOC_CQ_RSP1_SIZE - 1;
690
691 s->req[0].seqno = 1;
692 s->req[1].seqno = 1;
693 s->rsp[0].seqno = 1;
694 s->rsp[1].seqno = 1;
695
696 xram_copy_to (s->xram + SOC_CQ_REQ_OFFSET, cq, sizeof(cq));
697
698 /* Make our sw copy of SOC service parameters */
699 xram_copy_from (s->serv_params, s->xram + 0x140, sizeof (s->serv_params));
700
701 s->port[0].fc.common_svc = (common_svc_parm *)s->serv_params;
702 s->port[0].fc.class_svcs = (svc_parm *)(s->serv_params + 0x20);
703 s->port[1].fc.common_svc = (common_svc_parm *)&s->serv_params;
704 s->port[1].fc.class_svcs = (svc_parm *)(s->serv_params + 0x20);
705
706 soc_enable (s);
707
708 SOD(("Enabled SOC\n"))
709 }
710
soc_probe(void)711 static int __init soc_probe(void)
712 {
713 struct sbus_bus *sbus;
714 struct sbus_dev *sdev = 0;
715 struct soc *s;
716 int cards = 0;
717
718 for_each_sbus(sbus) {
719 for_each_sbusdev(sdev, sbus) {
720 if(!strcmp(sdev->prom_name, "SUNW,soc")) {
721 soc_init(sdev, cards);
722 cards++;
723 }
724 }
725 }
726 if (!cards) return -EIO;
727
728 for_each_soc(s)
729 if (s->next)
730 s->port[1].fc.next = &s->next->port[0].fc;
731 fcp_init (&socs->port[0].fc);
732 return 0;
733 }
734
soc_cleanup(void)735 static void __exit soc_cleanup(void)
736 {
737 struct soc *s;
738 int irq;
739 struct sbus_dev *sdev;
740
741 for_each_soc(s) {
742 irq = s->port[0].fc.irq;
743 free_irq (irq, s);
744
745 fcp_release(&(s->port[0].fc), 2);
746
747 sdev = s->port[0].fc.dev;
748 if (sdev->num_registers == 1) {
749 sbus_iounmap(s->xram, 0x10000UL);
750 sbus_iounmap(s->regs, 0x10UL);
751 } else {
752 sbus_iounmap(s->xram, sdev->reg_addrs[1].reg_size);
753 sbus_iounmap(s->regs, sdev->reg_addrs[2].reg_size);
754 }
755 sbus_free_consistent(sdev,
756 (SOC_CQ_REQ0_SIZE+SOC_CQ_REQ1_SIZE)*sizeof(soc_req),
757 s->req_cpu, s->req_dvma);
758 }
759 }
760
761 EXPORT_NO_SYMBOLS;
762
763 module_init(soc_probe);
764 module_exit(soc_cleanup);
765 MODULE_LICENSE("GPL");
766