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[linux-2.6/linux-acpi-2.6/ibm-acpi-2.6.git] / drivers / fc4 / soc.c
blobd517734462e6c3cf9bcd23e67d93db029054a4bc
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/types.h>
26 #include <linux/fcntl.h>
27 #include <linux/interrupt.h>
28 #include <linux/ptrace.h>
29 #include <linux/ioport.h>
30 #include <linux/in.h>
31 #include <linux/slab.h>
32 #include <linux/string.h>
33 #include <linux/init.h>
34 #include <linux/bitops.h>
35 #include <asm/io.h>
36 #include <asm/dma.h>
37 #include <linux/errno.h>
38 #include <asm/byteorder.h>
39
40 #include <asm/openprom.h>
41 #include <asm/oplib.h>
42 #include <asm/pgtable.h>
43 #include <asm/irq.h>
44
45 /* #define SOCDEBUG */
46 /* #define HAVE_SOC_UCODE */
47
48 #include "fcp_impl.h"
49 #include "soc.h"
50 #ifdef HAVE_SOC_UCODE
51 #include "soc_asm.h"
52 #endif
53
54 #define soc_printk printk ("soc%d: ", s->soc_no); printk
55
56 #ifdef SOCDEBUG
57 #define SOD(x) soc_printk x;
58 #else
59 #define SOD(x)
60 #endif
61
62 #define for_each_soc(s) for (s = socs; s; s = s->next)
63 struct soc *socs = NULL;
64
65 static inline void soc_disable(struct soc *s)
66 {
67 sbus_writel(0, s->regs + IMASK);
68 sbus_writel(SOC_CMD_SOFT_RESET, s->regs + CMD);
69 }
70
71 static inline void soc_enable(struct soc *s)
72 {
73 SOD(("enable %08x\n", s->cfg))
74 sbus_writel(0, s->regs + SAE);
75 sbus_writel(s->cfg, s->regs + CFG);
76 sbus_writel(SOC_CMD_RSP_QALL, s->regs + CMD);
77 SOC_SETIMASK(s, SOC_IMASK_RSP_QALL | SOC_IMASK_SAE);
78 SOD(("imask %08lx %08lx\n", s->imask, sbus_readl(s->regs + IMAK)));
79 }
80
81 static void soc_reset(fc_channel *fc)
82 {
83 soc_port *port = (soc_port *)fc;
84 struct soc *s = port->s;
85
86 /* FIXME */
87 soc_disable(s);
88 s->req[0].seqno = 1;
89 s->req[1].seqno = 1;
90 s->rsp[0].seqno = 1;
91 s->rsp[1].seqno = 1;
92 s->req[0].in = 0;
93 s->req[1].in = 0;
94 s->rsp[0].in = 0;
95 s->rsp[1].in = 0;
96 s->req[0].out = 0;
97 s->req[1].out = 0;
98 s->rsp[0].out = 0;
99 s->rsp[1].out = 0;
100
101 /* FIXME */
102 soc_enable(s);
103 }
104
105 static inline void soc_solicited (struct soc *s)
106 {
107 fc_hdr fchdr;
108 soc_rsp __iomem *hwrsp;
109 soc_cq_rsp *sw_cq;
110 int token;
111 int status;
112 fc_channel *fc;
113
114 sw_cq = &s->rsp[SOC_SOLICITED_RSP_Q];
115
116 if (sw_cq->pool == NULL)
117 sw_cq->pool = (soc_req __iomem *)
118 (s->xram + xram_get_32low ((xram_p)&sw_cq->hw_cq->address));
119 sw_cq->in = xram_get_8 ((xram_p)&sw_cq->hw_cq->in);
120 SOD (("soc_solicited, %d pkts arrived\n", (sw_cq->in-sw_cq->out) & sw_cq->last))
121 for (;;) {
122 hwrsp = (soc_rsp __iomem *)sw_cq->pool + sw_cq->out;
123 token = xram_get_32low ((xram_p)&hwrsp->shdr.token);
124 status = xram_get_32low ((xram_p)&hwrsp->status);
125 fc = (fc_channel *)(&s->port[(token >> 11) & 1]);
126
127 if (status == SOC_OK) {
128 fcp_receive_solicited(fc, token >> 12,
129 token & ((1 << 11) - 1),
130 FC_STATUS_OK, NULL);
131 } else {
132 xram_copy_from(&fchdr, (xram_p)&hwrsp->fchdr, sizeof(fchdr));
133 /* We have intentionally defined FC_STATUS_* constants
134 * to match SOC_* constants, otherwise we'd have to
135 * translate status.
136 */
137 fcp_receive_solicited(fc, token >> 12,
138 token & ((1 << 11) - 1),
139 status, &fchdr);
140 }
141
142 if (++sw_cq->out > sw_cq->last) {
143 sw_cq->seqno++;
144 sw_cq->out = 0;
145 }
146
147 if (sw_cq->out == sw_cq->in) {
148 sw_cq->in = xram_get_8 ((xram_p)&sw_cq->hw_cq->in);
149 if (sw_cq->out == sw_cq->in) {
150 /* Tell the hardware about it */
151 sbus_writel((sw_cq->out << 24) |
152 (SOC_CMD_RSP_QALL &
153 ~(SOC_CMD_RSP_Q0 << SOC_SOLICITED_RSP_Q)),
154 s->regs + CMD);
155
156 /* Read it, so that we're sure it has been updated */
157 sbus_readl(s->regs + CMD);
158 sw_cq->in = xram_get_8 ((xram_p)&sw_cq->hw_cq->in);
159 if (sw_cq->out == sw_cq->in)
160 break;
161 }
162 }
163 }
164 }
165
166 static inline void soc_request (struct soc *s, u32 cmd)
167 {
168 SOC_SETIMASK(s, s->imask & ~(cmd & SOC_CMD_REQ_QALL));
169 SOD(("imask %08lx %08lx\n", s->imask, sbus_readl(s->regs + IMASK)));
170
171 SOD(("Queues available %08x OUT %X %X\n", cmd,
172 xram_get_8((xram_p)&s->req[0].hw_cq->out),
173 xram_get_8((xram_p)&s->req[0].hw_cq->out)))
174 if (s->port[s->curr_port].fc.state != FC_STATE_OFFLINE) {
175 fcp_queue_empty ((fc_channel *)&(s->port[s->curr_port]));
176 if (((s->req[1].in + 1) & s->req[1].last) != (s->req[1].out))
177 fcp_queue_empty ((fc_channel *)&(s->port[1 - s->curr_port]));
178 } else {
179 fcp_queue_empty ((fc_channel *)&(s->port[1 - s->curr_port]));
180 }
181 if (s->port[1 - s->curr_port].fc.state != FC_STATE_OFFLINE)
182 s->curr_port ^= 1;
183 }
184
185 static inline void soc_unsolicited (struct soc *s)
186 {
187 soc_rsp __iomem *hwrsp, *hwrspc;
188 soc_cq_rsp *sw_cq;
189 int count;
190 int status;
191 int flags;
192 fc_channel *fc;
193
194 sw_cq = &s->rsp[SOC_UNSOLICITED_RSP_Q];
195 if (sw_cq->pool == NULL)
196 sw_cq->pool = (soc_req __iomem *)
197 (s->xram + (xram_get_32low ((xram_p)&sw_cq->hw_cq->address)));
198
199 sw_cq->in = xram_get_8 ((xram_p)&sw_cq->hw_cq->in);
200 SOD (("soc_unsolicited, %d packets arrived\n", (sw_cq->in - sw_cq->out) & sw_cq->last))
201 while (sw_cq->in != sw_cq->out) {
202 /* ...real work per entry here... */
203 hwrsp = (soc_rsp __iomem *)sw_cq->pool + sw_cq->out;
204
205 hwrspc = NULL;
206 flags = xram_get_16 ((xram_p)&hwrsp->shdr.flags);
207 count = xram_get_8 ((xram_p)&hwrsp->count);
208 fc = (fc_channel *)&s->port[flags & SOC_PORT_B];
209 SOD(("FC %08lx fcp_state_change %08lx\n",
210 (long)fc, (long)fc->fcp_state_change))
211
212 if (count != 1) {
213 /* Ugh, continuation entries */
214 u8 in;
215
216 if (count != 2) {
217 printk("%s: Too many continuations entries %d\n",
218 fc->name, count);
219 goto update_out;
220 }
221
222 in = sw_cq->in;
223 if (in < sw_cq->out) in += sw_cq->last + 1;
224 if (in < sw_cq->out + 2) {
225 /* Ask the hardware if they haven't arrived yet. */
226 sbus_writel((sw_cq->out << 24) |
227 (SOC_CMD_RSP_QALL &
228 ~(SOC_CMD_RSP_Q0 << SOC_UNSOLICITED_RSP_Q)),
229 s->regs + CMD);
230
231 /* Read it, so that we're sure it has been updated */
232 sbus_readl(s->regs + CMD);
233 sw_cq->in = xram_get_8 ((xram_p)&sw_cq->hw_cq->in);
234 in = sw_cq->in;
235 if (in < sw_cq->out)
236 in += sw_cq->last + 1;
237 if (in < sw_cq->out + 2) /* Nothing came, let us wait */
238 return;
239 }
240 if (sw_cq->out == sw_cq->last)
241 hwrspc = (soc_rsp __iomem *)sw_cq->pool;
242 else
243 hwrspc = hwrsp + 1;
244 }
245
246 switch (flags & ~SOC_PORT_B) {
247 case SOC_STATUS:
248 status = xram_get_32low ((xram_p)&hwrsp->status);
249 switch (status) {
250 case SOC_ONLINE:
251 SOD(("State change to ONLINE\n"));
252 fcp_state_change(fc, FC_STATE_ONLINE);
253 break;
254 case SOC_OFFLINE:
255 SOD(("State change to OFFLINE\n"));
256 fcp_state_change(fc, FC_STATE_OFFLINE);
257 break;
258 default:
259 printk ("%s: Unknown STATUS no %d\n",
260 fc->name, status);
261 break;
262 }
263 break;
264 case (SOC_UNSOLICITED|SOC_FC_HDR):
265 {
266 int r_ctl = xram_get_8 ((xram_p)&hwrsp->fchdr);
267 unsigned len;
268 char buf[64];
269
270 if ((r_ctl & 0xf0) == R_CTL_EXTENDED_SVC) {
271 len = xram_get_32 ((xram_p)&hwrsp->shdr.bytecnt);
272 if (len < 4 || !hwrspc) {
273 printk ("%s: Invalid R_CTL %02x "
274 "continuation entries\n",
275 fc->name, r_ctl);
276 } else {
277 if (len > 60)
278 len = 60;
279 xram_copy_from (buf, (xram_p)hwrspc,
280 (len + 3) & ~3);
281 if (*(u32 *)buf == LS_DISPLAY) {
282 int i;
283
284 for (i = 4; i < len; i++)
285 if (buf[i] == '\n')
286 buf[i] = ' ';
287 buf[len] = 0;
288 printk ("%s message: %s\n",
289 fc->name, buf + 4);
290 } else {
291 printk ("%s: Unknown LS_CMD "
292 "%02x\n", fc->name,
293 buf[0]);
294 }
295 }
296 } else {
297 printk ("%s: Unsolicited R_CTL %02x "
298 "not handled\n", fc->name, r_ctl);
299 }
300 }
301 break;
302 default:
303 printk ("%s: Unexpected flags %08x\n", fc->name, flags);
304 break;
305 };
306 update_out:
307 if (++sw_cq->out > sw_cq->last) {
308 sw_cq->seqno++;
309 sw_cq->out = 0;
310 }
311
312 if (hwrspc) {
313 if (++sw_cq->out > sw_cq->last) {
314 sw_cq->seqno++;
315 sw_cq->out = 0;
316 }
317 }
318
319 if (sw_cq->out == sw_cq->in) {
320 sw_cq->in = xram_get_8 ((xram_p)&sw_cq->hw_cq->in);
321 if (sw_cq->out == sw_cq->in) {
322 /* Tell the hardware about it */
323 sbus_writel((sw_cq->out << 24) |
324 (SOC_CMD_RSP_QALL &
325 ~(SOC_CMD_RSP_Q0 << SOC_UNSOLICITED_RSP_Q)),
326 s->regs + CMD);
327
328 /* Read it, so that we're sure it has been updated */
329 sbus_readl(s->regs + CMD);
330 sw_cq->in = xram_get_8 ((xram_p)&sw_cq->hw_cq->in);
331 }
332 }
333 }
334 }
335
336 static irqreturn_t soc_intr(int irq, void *dev_id)
337 {
338 u32 cmd;
339 unsigned long flags;
340 register struct soc *s = (struct soc *)dev_id;
341
342 spin_lock_irqsave(&s->lock, flags);
343 cmd = sbus_readl(s->regs + CMD);
344 for (; (cmd = SOC_INTR (s, cmd)); cmd = sbus_readl(s->regs + CMD)) {
345 if (cmd & SOC_CMD_RSP_Q1) soc_unsolicited (s);
346 if (cmd & SOC_CMD_RSP_Q0) soc_solicited (s);
347 if (cmd & SOC_CMD_REQ_QALL) soc_request (s, cmd);
348 }
349 spin_unlock_irqrestore(&s->lock, flags);
350
351 return IRQ_HANDLED;
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_req *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 = kzalloc (sizeof (struct soc), GFP_KERNEL);
559 if (s == NULL)
560 return;
561 spin_lock_init(&s->lock);
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
569 s->port[0].fc.module = THIS_MODULE;
570 s->port[1].fc.module = THIS_MODULE;
571
572 s->next = socs;
573 socs = s;
574 s->port[0].fc.dev = sdev;
575 s->port[1].fc.dev = sdev;
576 s->port[0].s = s;
577 s->port[1].s = s;
578
579 s->port[0].fc.next = &s->port[1].fc;
580
581 /* World Wide Name of SOC */
582 propl = prom_getproperty (sdev->prom_node, "soc-wwn", tmp, sizeof(tmp));
583 if (propl != sizeof (fc_wwn)) {
584 s->wwn.naaid = NAAID_IEEE;
585 s->wwn.lo = 0x12345678;
586 } else
587 memcpy (&s->wwn, tmp, sizeof (fc_wwn));
588
589 propl = prom_getproperty (sdev->prom_node, "port-wwns", tmp, sizeof(tmp));
590 if (propl != 2 * sizeof (fc_wwn)) {
591 s->port[0].fc.wwn_nport.naaid = NAAID_IEEE_EXT;
592 s->port[0].fc.wwn_nport.hi = s->wwn.hi;
593 s->port[0].fc.wwn_nport.lo = s->wwn.lo;
594 s->port[1].fc.wwn_nport.naaid = NAAID_IEEE_EXT;
595 s->port[1].fc.wwn_nport.nportid = 1;
596 s->port[1].fc.wwn_nport.hi = s->wwn.hi;
597 s->port[1].fc.wwn_nport.lo = s->wwn.lo;
598 } else {
599 memcpy (&s->port[0].fc.wwn_nport, tmp, sizeof (fc_wwn));
600 memcpy (&s->port[1].fc.wwn_nport, tmp + sizeof (fc_wwn), sizeof (fc_wwn));
601 }
602 memcpy (&s->port[0].fc.wwn_node, &s->wwn, sizeof (fc_wwn));
603 memcpy (&s->port[1].fc.wwn_node, &s->wwn, sizeof (fc_wwn));
604 SOD(("Got wwns %08x%08x ports %08x%08x and %08x%08x\n",
605 *(u32 *)&s->port[0].fc.wwn_nport, s->port[0].fc.wwn_nport.lo,
606 *(u32 *)&s->port[0].fc.wwn_nport, s->port[0].fc.wwn_nport.lo,
607 *(u32 *)&s->port[1].fc.wwn_nport, s->port[1].fc.wwn_nport.lo))
608
609 s->port[0].fc.sid = 1;
610 s->port[1].fc.sid = 17;
611 s->port[0].fc.did = 2;
612 s->port[1].fc.did = 18;
613
614 s->port[0].fc.reset = soc_reset;
615 s->port[1].fc.reset = soc_reset;
616
617 if (sdev->num_registers == 1) {
618 /* Probably SunFire onboard SOC */
619 s->xram = sbus_ioremap(&sdev->resource[0], 0,
620 0x10000UL, "soc xram");
621 s->regs = sbus_ioremap(&sdev->resource[0], 0x10000UL,
622 0x10UL, "soc regs");
623 } else {
624 /* Probably SOC sbus card */
625 s->xram = sbus_ioremap(&sdev->resource[1], 0,
626 sdev->reg_addrs[1].reg_size, "soc xram");
627 s->regs = sbus_ioremap(&sdev->resource[2], 0,
628 sdev->reg_addrs[2].reg_size, "soc regs");
629 }
630
631 soc_init_bursts(s, sdev);
632
633 SOD(("Disabling SOC\n"))
634
635 soc_disable (s);
636
637 irq = sdev->irqs[0];
638
639 if (request_irq (irq, soc_intr, IRQF_SHARED, "SOC", (void *)s)) {
640 soc_printk ("Cannot order irq %d to go\n", irq);
641 socs = s->next;
642 return;
643 }
644
645 SOD(("SOC uses IRQ %d\n", irq))
646
647 s->port[0].fc.irq = irq;
648 s->port[1].fc.irq = irq;
649
650 sprintf (s->port[0].fc.name, "soc%d port A", no);
651 sprintf (s->port[1].fc.name, "soc%d port B", no);
652 s->port[0].flags = SOC_FC_HDR | SOC_PORT_A;
653 s->port[1].flags = SOC_FC_HDR | SOC_PORT_B;
654 s->port[1].mask = (1 << 11);
655
656 s->port[0].fc.hw_enque = soc_hw_enque;
657 s->port[1].fc.hw_enque = soc_hw_enque;
658
659 soc_download_fw (s);
660
661 SOD(("Downloaded firmware\n"))
662
663 /* Now setup xram circular queues */
664 memset (cq, 0, sizeof(cq));
665
666 size = (SOC_CQ_REQ0_SIZE + SOC_CQ_REQ1_SIZE) * sizeof(soc_req);
667 s->req_cpu = sbus_alloc_consistent(sdev, size, &s->req_dvma);
668 s->req[0].pool = s->req_cpu;
669 cq[0].address = s->req_dvma;
670 s->req[1].pool = s->req[0].pool + SOC_CQ_REQ0_SIZE;
671
672 s->req[0].hw_cq = (soc_hw_cq __iomem *)(s->xram + SOC_CQ_REQ_OFFSET);
673 s->req[1].hw_cq = (soc_hw_cq __iomem *)(s->xram + SOC_CQ_REQ_OFFSET + sizeof(soc_hw_cq));
674 s->rsp[0].hw_cq = (soc_hw_cq __iomem *)(s->xram + SOC_CQ_RSP_OFFSET);
675 s->rsp[1].hw_cq = (soc_hw_cq __iomem *)(s->xram + SOC_CQ_RSP_OFFSET + sizeof(soc_hw_cq));
676
677 cq[1].address = cq[0].address + (SOC_CQ_REQ0_SIZE * sizeof(soc_req));
678 cq[4].address = 1;
679 cq[5].address = 1;
680 cq[0].last = SOC_CQ_REQ0_SIZE - 1;
681 cq[1].last = SOC_CQ_REQ1_SIZE - 1;
682 cq[4].last = SOC_CQ_RSP0_SIZE - 1;
683 cq[5].last = SOC_CQ_RSP1_SIZE - 1;
684 for (i = 0; i < 8; i++)
685 cq[i].seqno = 1;
686
687 s->req[0].last = SOC_CQ_REQ0_SIZE - 1;
688 s->req[1].last = SOC_CQ_REQ1_SIZE - 1;
689 s->rsp[0].last = SOC_CQ_RSP0_SIZE - 1;
690 s->rsp[1].last = SOC_CQ_RSP1_SIZE - 1;
691
692 s->req[0].seqno = 1;
693 s->req[1].seqno = 1;
694 s->rsp[0].seqno = 1;
695 s->rsp[1].seqno = 1;
696
697 xram_copy_to (s->xram + SOC_CQ_REQ_OFFSET, cq, sizeof(cq));
698
699 /* Make our sw copy of SOC service parameters */
700 xram_copy_from (s->serv_params, s->xram + 0x140, sizeof (s->serv_params));
701
702 s->port[0].fc.common_svc = (common_svc_parm *)s->serv_params;
703 s->port[0].fc.class_svcs = (svc_parm *)(s->serv_params + 0x20);
704 s->port[1].fc.common_svc = (common_svc_parm *)&s->serv_params;
705 s->port[1].fc.class_svcs = (svc_parm *)(s->serv_params + 0x20);
706
707 soc_enable (s);
708
709 SOD(("Enabled SOC\n"))
710 }
711
712 static int __init soc_probe(void)
713 {
714 struct sbus_bus *sbus;
715 struct sbus_dev *sdev = NULL;
716 struct soc *s;
717 int cards = 0;
718
719 for_each_sbus(sbus) {
720 for_each_sbusdev(sdev, sbus) {
721 if(!strcmp(sdev->prom_name, "SUNW,soc")) {
722 soc_init(sdev, cards);
723 cards++;
724 }
725 }
726 }
727 if (!cards) return -EIO;
728
729 for_each_soc(s)
730 if (s->next)
731 s->port[1].fc.next = &s->next->port[0].fc;
732 fcp_init (&socs->port[0].fc);
733 return 0;
734 }
735
736 static void __exit soc_cleanup(void)
737 {
738 struct soc *s;
739 int irq;
740 struct sbus_dev *sdev;
741
742 for_each_soc(s) {
743 irq = s->port[0].fc.irq;
744 free_irq (irq, s);
745
746 fcp_release(&(s->port[0].fc), 2);
747
748 sdev = s->port[0].fc.dev;
749 if (sdev->num_registers == 1) {
750 sbus_iounmap(s->xram, 0x10000UL);
751 sbus_iounmap(s->regs, 0x10UL);
752 } else {
753 sbus_iounmap(s->xram, sdev->reg_addrs[1].reg_size);
754 sbus_iounmap(s->regs, sdev->reg_addrs[2].reg_size);
755 }
756 sbus_free_consistent(sdev,
757 (SOC_CQ_REQ0_SIZE+SOC_CQ_REQ1_SIZE)*sizeof(soc_req),
758 s->req_cpu, s->req_dvma);
759 }
760 }
761
762 module_init(soc_probe);
763 module_exit(soc_cleanup);
764 MODULE_LICENSE("GPL");
Linux 2.6 ibm-acpi/thinkpad-acpi driver git tree