v2.4.9.9 -> v2.4.9.10
[opensuse:kernel.git] / drivers / fc4 / soc.c
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/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
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, SA_SHIRQ, "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%s\n", __irq_itoa(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 *)(s->xram + SOC_CQ_REQ_OFFSET);
673         s->req[1].hw_cq = (soc_hw_cq *)(s->xram + SOC_CQ_REQ_OFFSET + sizeof(soc_hw_cq));
674         s->rsp[0].hw_cq = (soc_hw_cq *)(s->xram + SOC_CQ_RSP_OFFSET);
675         s->rsp[1].hw_cq = (soc_hw_cq *)(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 = 0;
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 sco_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                 disable_irq (irq);
745                 free_irq (irq, s);
746
747                 fcp_release(&(s->port[0].fc), 2);
748
749                 sdev = s->port[0].fc.dev;
750                 if (sdev->num_registers == 1) {
751                         sbus_iounmap(s->xram, 0x10000UL);
752                         sbus_iounmap(s->regs, 0x10UL);
753                 } else {
754                         sbus_iounmap(s->xram, sdev->reg_addrs[1].reg_size);
755                         sbus_iounmap(s->regs, sdev->reg_addrs[2].reg_size);
756                 }
757                 sbus_free_consistent(sdev,
758                                      (SOC_CQ_REQ0_SIZE+SOC_CQ_REQ1_SIZE)*sizeof(soc_req),
759                                      s->req_cpu, s->req_dvma);
760         }
761 }
762
763 EXPORT_NO_SYMBOLS;
764
765 module_init(soc_probe);
766 module_exit(soc_cleanup);