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authorLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 18:20:36 -0400
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 18:20:36 -0400
commit1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch)
tree0bba044c4ce775e45a88a51686b5d9f90697ea9d /drivers/fc4/soc.c
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
Diffstat (limited to 'drivers/fc4/soc.c')
-rw-r--r--drivers/fc4/soc.c766
1 files changed, 766 insertions, 0 deletions
diff --git a/drivers/fc4/soc.c b/drivers/fc4/soc.c
new file mode 100644
index 000000000000..247b46302777
--- /dev/null
+++ b/drivers/fc4/soc.c
@@ -0,0 +1,766 @@
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");
generated by cgit v1.2.2 (git 2.25.0) at 2024-12-12 11:47:49 -0500