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Sync CAM with FreeBSD using lockmgr locks instead of mutexes.
[dragonfly.git] / sys / dev / disk / sbp / sbp.c
blobe402f30480af75e669943e99e794aa158e0d04ae
1 /*
2 * Copyright (c) 2003 Hidetoshi Shimokawa
3 * Copyright (c) 1998-2002 Katsushi Kobayashi and Hidetoshi Shimokawa
4 * All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 * 3. All advertising materials mentioning features or use of this software
15 * must display the acknowledgement as bellow:
16 *
17 * This product includes software developed by K. Kobayashi and H. Shimokawa
18 *
19 * 4. The name of the author may not be used to endorse or promote products
20 * derived from this software without specific prior written permission.
21 *
22 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
23 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
24 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
25 * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
26 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
27 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
28 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
30 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
31 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
32 * POSSIBILITY OF SUCH DAMAGE.
33 *
34 * $FreeBSD: src/sys/dev/firewire/sbp.c,v 1.74 2004/01/08 14:58:09 simokawa Exp $
35 * $DragonFly: src/sys/dev/disk/sbp/sbp.c,v 1.28 2008/05/18 20:30:22 pavalos Exp $
36 *
37 */
38
39 #include <sys/param.h>
40 #include <sys/systm.h>
41 #include <sys/conf.h>
42 #include <sys/module.h>
43 #include <sys/bus.h>
44 #include <sys/kernel.h>
45 #include <sys/sysctl.h>
46 #include <sys/malloc.h>
47
48 #include <sys/devicestat.h> /* for struct devstat */
49 #include <sys/thread2.h>
50
51 #include <bus/cam/cam.h>
52 #include <bus/cam/cam_ccb.h>
53 #include <bus/cam/cam_sim.h>
54 #include <bus/cam/cam_xpt_sim.h>
55 #include <bus/cam/cam_debug.h>
56 #include <bus/cam/cam_periph.h>
57 #include <bus/cam/scsi/scsi_all.h>
58
59 #include <bus/firewire/firewire.h>
60 #include <bus/firewire/firewirereg.h>
61 #include <bus/firewire/fwdma.h>
62 #include <bus/firewire/iec13213.h>
63 #include "sbp.h"
64
65 #define ccb_sdev_ptr spriv_ptr0
66 #define ccb_sbp_ptr spriv_ptr1
67
68 #define SBP_NUM_TARGETS 8 /* MAX 64 */
69 /*
70 * Scan_bus doesn't work for more than 8 LUNs
71 * because of CAM_SCSI2_MAXLUN in cam_xpt.c
72 */
73 #define SBP_NUM_LUNS 64
74 #define SBP_DMA_SIZE PAGE_SIZE
75 #define SBP_LOGIN_SIZE sizeof(struct sbp_login_res)
76 #define SBP_QUEUE_LEN ((SBP_DMA_SIZE - SBP_LOGIN_SIZE) / sizeof(struct sbp_ocb))
77 #define SBP_NUM_OCB (SBP_QUEUE_LEN * SBP_NUM_TARGETS)
78
79 /*
80 * STATUS FIFO addressing
81 * bit
82 * -----------------------
83 * 0- 1( 2): 0 (alingment)
84 * 2- 7( 6): target
85 * 8-15( 8): lun
86 * 16-31( 8): reserved
87 * 32-47(16): SBP_BIND_HI
88 * 48-64(16): bus_id, node_id
89 */
90 #define SBP_BIND_HI 0x1
91 #define SBP_DEV2ADDR(t, l) \
92 (((u_int64_t)SBP_BIND_HI << 32) \
93 | (((l) & 0xff) << 8) \
94 | (((t) & 0x3f) << 2))
95 #define SBP_ADDR2TRG(a) (((a) >> 2) & 0x3f)
96 #define SBP_ADDR2LUN(a) (((a) >> 8) & 0xff)
97 #define SBP_INITIATOR 7
98
99 static char *orb_fun_name[] = {
100 ORB_FUN_NAMES
101 };
102
103 static int debug = 0;
104 static int auto_login = 1;
105 static int max_speed = -1;
106 #if 0
107 static int sbp_cold = 1;
108 #endif
109 static int ex_login = 1;
110 static int login_delay = 1000; /* msec */
111 static int scan_delay = 500; /* msec */
112 static int sbp_tags = 0;
113
114 SYSCTL_DECL(_hw_firewire);
115 SYSCTL_NODE(_hw_firewire, OID_AUTO, sbp, CTLFLAG_RD, 0, "SBP-II Subsystem");
116 SYSCTL_INT(_debug, OID_AUTO, sbp_debug, CTLFLAG_RW, &debug, 0,
117 "SBP debug flag");
118 SYSCTL_INT(_hw_firewire_sbp, OID_AUTO, auto_login, CTLFLAG_RW, &auto_login, 0,
119 "SBP perform login automatically");
120 SYSCTL_INT(_hw_firewire_sbp, OID_AUTO, max_speed, CTLFLAG_RW, &max_speed, 0,
121 "SBP transfer max speed");
122 SYSCTL_INT(_hw_firewire_sbp, OID_AUTO, exclusive_login, CTLFLAG_RW,
123 &ex_login, 0, "SBP transfer max speed");
124 SYSCTL_INT(_hw_firewire_sbp, OID_AUTO, login_delay, CTLFLAG_RW,
125 &login_delay, 0, "SBP login delay in msec");
126 SYSCTL_INT(_hw_firewire_sbp, OID_AUTO, scan_delay, CTLFLAG_RW,
127 &scan_delay, 0, "SBP scan delay in msec");
128 SYSCTL_INT(_hw_firewire_sbp, OID_AUTO, tags, CTLFLAG_RW, &sbp_tags, 0,
129 "SBP tagged queuing support");
130
131 TUNABLE_INT("hw.firewire.sbp.auto_login", &auto_login);
132 TUNABLE_INT("hw.firewire.sbp.max_speed", &max_speed);
133 TUNABLE_INT("hw.firewire.sbp.exclusive_login", &ex_login);
134 TUNABLE_INT("hw.firewire.sbp.login_delay", &login_delay);
135 TUNABLE_INT("hw.firewire.sbp.scan_delay", &scan_delay);
136 TUNABLE_INT("hw.firewire.sbp.tags", &sbp_tags);
137
138 #define NEED_RESPONSE 0
139
140 #define SBP_SEG_MAX rounddown(0xffff, PAGE_SIZE)
141 #ifdef __sparc64__ /* iommu */
142 #define SBP_IND_MAX howmany(MAXPHYS, SBP_SEG_MAX)
143 #else
144 #define SBP_IND_MAX howmany(MAXPHYS, PAGE_SIZE)
145 #endif
146 struct sbp_ocb {
147 STAILQ_ENTRY(sbp_ocb) ocb;
148 union ccb *ccb;
149 bus_addr_t bus_addr;
150 u_int32_t orb[8];
151 #define IND_PTR_OFFSET (8*sizeof(u_int32_t))
152 struct ind_ptr ind_ptr[SBP_IND_MAX];
153 struct sbp_dev *sdev;
154 int flags; /* XXX should be removed */
155 bus_dmamap_t dmamap;
156 };
157
158 #define OCB_ACT_MGM 0
159 #define OCB_ACT_CMD 1
160 #define OCB_MATCH(o,s) ((o)->bus_addr == ntohl((s)->orb_lo))
161
162 struct sbp_dev{
163 #define SBP_DEV_RESET 0 /* accept login */
164 #define SBP_DEV_LOGIN 1 /* to login */
165 #if 0
166 #define SBP_DEV_RECONN 2 /* to reconnect */
167 #endif
168 #define SBP_DEV_TOATTACH 3 /* to attach */
169 #define SBP_DEV_PROBE 4 /* scan lun */
170 #define SBP_DEV_ATTACHED 5 /* in operation */
171 #define SBP_DEV_DEAD 6 /* unavailable unit */
172 #define SBP_DEV_RETRY 7 /* unavailable unit */
173 u_int8_t status:4,
174 timeout:4;
175 u_int8_t type;
176 u_int16_t lun_id;
177 u_int16_t freeze;
178 #define ORB_LINK_DEAD (1 << 0)
179 #define VALID_LUN (1 << 1)
180 #define ORB_POINTER_ACTIVE (1 << 2)
181 #define ORB_POINTER_NEED (1 << 3)
182 u_int16_t flags;
183 struct cam_path *path;
184 struct sbp_target *target;
185 struct fwdma_alloc dma;
186 struct sbp_login_res *login;
187 struct callout login_callout;
188 struct sbp_ocb *ocb;
189 STAILQ_HEAD(, sbp_ocb) ocbs;
190 STAILQ_HEAD(, sbp_ocb) free_ocbs;
191 char vendor[32];
192 char product[32];
193 char revision[10];
194 };
195
196 struct sbp_target {
197 int target_id;
198 int num_lun;
199 struct sbp_dev **luns;
200 struct sbp_softc *sbp;
201 struct fw_device *fwdev;
202 u_int32_t mgm_hi, mgm_lo;
203 struct sbp_ocb *mgm_ocb_cur;
204 STAILQ_HEAD(, sbp_ocb) mgm_ocb_queue;
205 struct callout mgm_ocb_timeout;
206 struct callout scan_callout;
207 STAILQ_HEAD(, fw_xfer) xferlist;
208 int n_xfer;
209 };
210
211 struct sbp_softc {
212 struct firewire_dev_comm fd;
213 struct cam_sim *sim;
214 struct cam_path *path;
215 struct sbp_target targets[SBP_NUM_TARGETS];
216 struct fw_bind fwb;
217 bus_dma_tag_t dmat;
218 struct timeval last_busreset;
219 #define SIMQ_FREEZED 1
220 int flags;
221 };
222
223 static void sbp_post_explore (void *);
224 static void sbp_recv (struct fw_xfer *);
225 static void sbp_mgm_callback (struct fw_xfer *);
226 #if 0
227 static void sbp_cmd_callback (struct fw_xfer *);
228 #endif
229 static void sbp_orb_pointer (struct sbp_dev *, struct sbp_ocb *);
230 static void sbp_execute_ocb (void *, bus_dma_segment_t *, int, int);
231 static void sbp_free_ocb (struct sbp_dev *, struct sbp_ocb *);
232 static void sbp_abort_ocb (struct sbp_ocb *, int);
233 static void sbp_abort_all_ocbs (struct sbp_dev *, int);
234 static struct fw_xfer * sbp_write_cmd (struct sbp_dev *, int, int);
235 static struct sbp_ocb * sbp_get_ocb (struct sbp_dev *);
236 static struct sbp_ocb * sbp_enqueue_ocb (struct sbp_dev *, struct sbp_ocb *);
237 static struct sbp_ocb * sbp_dequeue_ocb (struct sbp_dev *, struct sbp_status *);
238 static void sbp_cam_detach_sdev(struct sbp_dev *);
239 static void sbp_free_sdev(struct sbp_dev *);
240 static void sbp_cam_detach_target (struct sbp_target *);
241 static void sbp_free_target (struct sbp_target *);
242 static void sbp_mgm_timeout (void *arg);
243 static void sbp_timeout (void *arg);
244 static void sbp_mgm_orb (struct sbp_dev *, int, struct sbp_ocb *);
245
246 MALLOC_DEFINE(M_SBP, "sbp", "SBP-II/FireWire");
247
248 /* cam related functions */
249 static void sbp_action(struct cam_sim *sim, union ccb *ccb);
250 static void sbp_poll(struct cam_sim *sim);
251 static void sbp_cam_scan_lun(struct cam_periph *, union ccb *);
252 static void sbp_cam_scan_target(void *arg);
253
254 static char *orb_status0[] = {
255 /* 0 */ "No additional information to report",
256 /* 1 */ "Request type not supported",
257 /* 2 */ "Speed not supported",
258 /* 3 */ "Page size not supported",
259 /* 4 */ "Access denied",
260 /* 5 */ "Logical unit not supported",
261 /* 6 */ "Maximum payload too small",
262 /* 7 */ "Reserved for future standardization",
263 /* 8 */ "Resources unavailable",
264 /* 9 */ "Function rejected",
265 /* A */ "Login ID not recognized",
266 /* B */ "Dummy ORB completed",
267 /* C */ "Request aborted",
268 /* FF */ "Unspecified error"
269 #define MAX_ORB_STATUS0 0xd
270 };
271
272 static char *orb_status1_object[] = {
273 /* 0 */ "Operation request block (ORB)",
274 /* 1 */ "Data buffer",
275 /* 2 */ "Page table",
276 /* 3 */ "Unable to specify"
277 };
278
279 static char *orb_status1_serial_bus_error[] = {
280 /* 0 */ "Missing acknowledge",
281 /* 1 */ "Reserved; not to be used",
282 /* 2 */ "Time-out error",
283 /* 3 */ "Reserved; not to be used",
284 /* 4 */ "Busy retry limit exceeded(X)",
285 /* 5 */ "Busy retry limit exceeded(A)",
286 /* 6 */ "Busy retry limit exceeded(B)",
287 /* 7 */ "Reserved for future standardization",
288 /* 8 */ "Reserved for future standardization",
289 /* 9 */ "Reserved for future standardization",
290 /* A */ "Reserved for future standardization",
291 /* B */ "Tardy retry limit exceeded",
292 /* C */ "Conflict error",
293 /* D */ "Data error",
294 /* E */ "Type error",
295 /* F */ "Address error"
296 };
297
298 /*
299 * sbp_probe()
300 */
301 static int
302 sbp_probe(device_t dev)
303 {
304 device_t pa;
305
306 SBP_DEBUG(0)
307 kprintf("sbp_probe\n");
308 END_DEBUG
309
310 pa = device_get_parent(dev);
311 if(device_get_unit(dev) != device_get_unit(pa)){
312 return(ENXIO);
313 }
314
315 device_set_desc(dev, "SBP-2/SCSI over FireWire");
316
317 if (bootverbose)
318 debug = bootverbose;
319 return (0);
320 }
321
322 static void
323 sbp_show_sdev_info(struct sbp_dev *sdev, int new)
324 {
325 struct fw_device *fwdev;
326
327 kprintf("%s:%d:%d ",
328 device_get_nameunit(sdev->target->sbp->fd.dev),
329 sdev->target->target_id,
330 sdev->lun_id
331 );
332 if (new == 2) {
333 return;
334 }
335 fwdev = sdev->target->fwdev;
336 kprintf("ordered:%d type:%d EUI:%08x%08x node:%d "
337 "speed:%d maxrec:%d",
338 (sdev->type & 0x40) >> 6,
339 (sdev->type & 0x1f),
340 fwdev->eui.hi,
341 fwdev->eui.lo,
342 fwdev->dst,
343 fwdev->speed,
344 fwdev->maxrec
345 );
346 if (new)
347 kprintf(" new!\n");
348 else
349 kprintf("\n");
350 sbp_show_sdev_info(sdev, 2);
351 kprintf("'%s' '%s' '%s'\n", sdev->vendor, sdev->product, sdev->revision);
352 }
353
354 static struct {
355 int bus;
356 int target;
357 struct fw_eui64 eui;
358 } wired[] = {
359 /* Bus Target EUI64 */
360 #if 0
361 {0, 2, {0x00018ea0, 0x01fd0154}}, /* Logitec HDD */
362 {0, 0, {0x00018ea6, 0x00100682}}, /* Logitec DVD */
363 {0, 1, {0x00d03200, 0xa412006a}}, /* Yano HDD */
364 #endif
365 {-1, -1, {0,0}}
366 };
367
368 static int
369 sbp_new_target(struct sbp_softc *sbp, struct fw_device *fwdev)
370 {
371 int bus, i, target=-1;
372 char w[SBP_NUM_TARGETS];
373
374 bzero(w, sizeof(w));
375 bus = device_get_unit(sbp->fd.dev);
376
377 /* XXX wired-down configuration should be gotten from
378 tunable or device hint */
379 for (i = 0; wired[i].bus >= 0; i ++) {
380 if (wired[i].bus == bus) {
381 w[wired[i].target] = 1;
382 if (wired[i].eui.hi == fwdev->eui.hi &&
383 wired[i].eui.lo == fwdev->eui.lo)
384 target = wired[i].target;
385 }
386 }
387 if (target >= 0) {
388 if(target < SBP_NUM_TARGETS &&
389 sbp->targets[target].fwdev == NULL)
390 return(target);
391 device_printf(sbp->fd.dev,
392 "target %d is not free for %08x:%08x\n",
393 target, fwdev->eui.hi, fwdev->eui.lo);
394 target = -1;
395 }
396 /* non-wired target */
397 for (i = 0; i < SBP_NUM_TARGETS; i ++)
398 if (sbp->targets[i].fwdev == NULL && w[i] == 0) {
399 target = i;
400 break;
401 }
402
403 return target;
404 }
405
406 static void
407 sbp_alloc_lun(struct sbp_target *target)
408 {
409 struct crom_context cc;
410 struct csrreg *reg;
411 struct sbp_dev *sdev, **newluns;
412 struct sbp_softc *sbp;
413 int maxlun, lun, i;
414
415 sbp = target->sbp;
416 crom_init_context(&cc, target->fwdev->csrrom);
417 /* XXX shoud parse appropriate unit directories only */
418 maxlun = -1;
419 while (cc.depth >= 0) {
420 reg = crom_search_key(&cc, CROM_LUN);
421 if (reg == NULL)
422 break;
423 lun = reg->val & 0xffff;
424 SBP_DEBUG(0)
425 kprintf("target %d lun %d found\n", target->target_id, lun);
426 END_DEBUG
427 if (maxlun < lun)
428 maxlun = lun;
429 crom_next(&cc);
430 }
431 if (maxlun < 0)
432 kprintf("%s:%d no LUN found\n",
433 device_get_nameunit(target->sbp->fd.dev),
434 target->target_id);
435
436 maxlun ++;
437 if (maxlun >= SBP_NUM_LUNS)
438 maxlun = SBP_NUM_LUNS;
439
440 /* Invalidiate stale devices */
441 for (lun = 0; lun < target->num_lun; lun ++) {
442 sdev = target->luns[lun];
443 if (sdev == NULL)
444 continue;
445 sdev->flags &= ~VALID_LUN;
446 if (lun >= maxlun) {
447 /* lost device */
448 sbp_cam_detach_sdev(sdev);
449 sbp_free_sdev(sdev);
450 }
451 }
452
453 /* Reallocate */
454 if (maxlun != target->num_lun) {
455 /*
456 * note: krealloc() does not support M_ZERO. We must zero
457 * the extended region manually.
458 */
459 newluns = krealloc(target->luns,
460 sizeof(struct sbp_dev *) * maxlun,
461 M_SBP, M_WAITOK);
462
463 if (maxlun > target->num_lun) {
464 bzero(&newluns[target->num_lun],
465 sizeof(struct sbp_dev *) *
466 (maxlun - target->num_lun));
467 }
468 target->luns = newluns;
469 target->num_lun = maxlun;
470 }
471
472 crom_init_context(&cc, target->fwdev->csrrom);
473 while (cc.depth >= 0) {
474 int new = 0;
475
476 reg = crom_search_key(&cc, CROM_LUN);
477 if (reg == NULL)
478 break;
479 lun = reg->val & 0xffff;
480 if (lun >= SBP_NUM_LUNS) {
481 kprintf("too large lun %d\n", lun);
482 goto next;
483 }
484
485 sdev = target->luns[lun];
486 if (sdev == NULL) {
487 sdev = kmalloc(sizeof(struct sbp_dev),
488 M_SBP, M_WAITOK | M_ZERO);
489 target->luns[lun] = sdev;
490 sdev->lun_id = lun;
491 sdev->target = target;
492 STAILQ_INIT(&sdev->ocbs);
493 CALLOUT_INIT(&sdev->login_callout);
494 sdev->status = SBP_DEV_RESET;
495 new = 1;
496 }
497 sdev->flags |= VALID_LUN;
498 sdev->type = (reg->val & 0xff0000) >> 16;
499
500 if (new == 0)
501 goto next;
502
503 fwdma_malloc(sbp->fd.fc,
504 /* alignment */ sizeof(u_int32_t),
505 SBP_DMA_SIZE, &sdev->dma, BUS_DMA_NOWAIT);
506 if (sdev->dma.v_addr == NULL) {
507 kprintf("%s: dma space allocation failed\n",
508 __func__);
509 kfree(sdev, M_SBP);
510 target->luns[lun] = NULL;
511 goto next;
512 }
513 sdev->login = (struct sbp_login_res *) sdev->dma.v_addr;
514 sdev->ocb = (struct sbp_ocb *)
515 ((char *)sdev->dma.v_addr + SBP_LOGIN_SIZE);
516 bzero((char *)sdev->ocb,
517 sizeof (struct sbp_ocb) * SBP_QUEUE_LEN);
518
519 STAILQ_INIT(&sdev->free_ocbs);
520 for (i = 0; i < SBP_QUEUE_LEN; i++) {
521 struct sbp_ocb *ocb;
522 ocb = &sdev->ocb[i];
523 ocb->bus_addr = sdev->dma.bus_addr
524 + SBP_LOGIN_SIZE
525 + sizeof(struct sbp_ocb) * i
526 + offsetof(struct sbp_ocb, orb[0]);
527 if (bus_dmamap_create(sbp->dmat, 0, &ocb->dmamap)) {
528 kprintf("sbp_attach: cannot create dmamap\n");
529 /* XXX */
530 goto next;
531 }
532 sbp_free_ocb(sdev, ocb);
533 }
534 next:
535 crom_next(&cc);
536 }
537
538 for (lun = 0; lun < target->num_lun; lun ++) {
539 sdev = target->luns[lun];
540 if (sdev != NULL && (sdev->flags & VALID_LUN) == 0) {
541 sbp_cam_detach_sdev(sdev);
542 sbp_free_sdev(sdev);
543 target->luns[lun] = NULL;
544 }
545 }
546 }
547
548 static struct sbp_target *
549 sbp_alloc_target(struct sbp_softc *sbp, struct fw_device *fwdev)
550 {
551 int i;
552 struct sbp_target *target;
553 struct crom_context cc;
554 struct csrreg *reg;
555
556 SBP_DEBUG(1)
557 kprintf("sbp_alloc_target\n");
558 END_DEBUG
559 i = sbp_new_target(sbp, fwdev);
560 if (i < 0) {
561 device_printf(sbp->fd.dev, "increase SBP_NUM_TARGETS!\n");
562 return NULL;
563 }
564 /* new target */
565 target = &sbp->targets[i];
566 target->sbp = sbp;
567 target->fwdev = fwdev;
568 target->target_id = i;
569 /* XXX we may want to reload mgm port after each bus reset */
570 /* XXX there might be multiple management agents */
571 crom_init_context(&cc, target->fwdev->csrrom);
572 reg = crom_search_key(&cc, CROM_MGM);
573 if (reg == NULL || reg->val == 0) {
574 kprintf("NULL management address\n");
575 target->fwdev = NULL;
576 return NULL;
577 }
578 target->mgm_hi = 0xffff;
579 target->mgm_lo = 0xf0000000 | (reg->val << 2);
580 target->mgm_ocb_cur = NULL;
581 SBP_DEBUG(1)
582 kprintf("target:%d mgm_port: %x\n", i, target->mgm_lo);
583 END_DEBUG
584 STAILQ_INIT(&target->xferlist);
585 target->n_xfer = 0;
586 STAILQ_INIT(&target->mgm_ocb_queue);
587 CALLOUT_INIT(&target->mgm_ocb_timeout);
588 CALLOUT_INIT(&target->scan_callout);
589
590 target->luns = NULL;
591 target->num_lun = 0;
592 return target;
593 }
594
595 static void
596 sbp_probe_lun(struct sbp_dev *sdev)
597 {
598 struct fw_device *fwdev;
599 struct crom_context c, *cc = &c;
600 struct csrreg *reg;
601
602 bzero(sdev->vendor, sizeof(sdev->vendor));
603 bzero(sdev->product, sizeof(sdev->product));
604
605 fwdev = sdev->target->fwdev;
606 crom_init_context(cc, fwdev->csrrom);
607 /* get vendor string */
608 crom_search_key(cc, CSRKEY_VENDOR);
609 crom_next(cc);
610 crom_parse_text(cc, sdev->vendor, sizeof(sdev->vendor));
611 /* skip to the unit directory for SBP-2 */
612 while ((reg = crom_search_key(cc, CSRKEY_VER)) != NULL) {
613 if (reg->val == CSRVAL_T10SBP2)
614 break;
615 crom_next(cc);
616 }
617 /* get firmware revision */
618 reg = crom_search_key(cc, CSRKEY_FIRM_VER);
619 if (reg != NULL)
620 ksnprintf(sdev->revision, sizeof(sdev->revision),
621 "%06x", reg->val);
622 /* get product string */
623 crom_search_key(cc, CSRKEY_MODEL);
624 crom_next(cc);
625 crom_parse_text(cc, sdev->product, sizeof(sdev->product));
626 }
627
628 static void
629 sbp_login_callout(void *arg)
630 {
631 struct sbp_dev *sdev = (struct sbp_dev *)arg;
632 sbp_mgm_orb(sdev, ORB_FUN_LGI, NULL);
633 }
634
635 static void
636 sbp_login(struct sbp_dev *sdev)
637 {
638 struct timeval delta;
639 struct timeval t;
640 int ticks = 0;
641
642 microtime(&delta);
643 timevalsub(&delta, &sdev->target->sbp->last_busreset);
644 t.tv_sec = login_delay / 1000;
645 t.tv_usec = (login_delay % 1000) * 1000;
646 timevalsub(&t, &delta);
647 if (t.tv_sec >= 0 && t.tv_usec > 0)
648 ticks = (t.tv_sec * 1000 + t.tv_usec / 1000) * hz / 1000;
649 SBP_DEBUG(0)
650 kprintf("%s: sec = %ld usec = %ld ticks = %d\n", __func__,
651 t.tv_sec, t.tv_usec, ticks);
652 END_DEBUG
653 callout_reset(&sdev->login_callout, ticks,
654 sbp_login_callout, (void *)(sdev));
655 }
656
657 #define SBP_FWDEV_ALIVE(fwdev) (((fwdev)->status == FWDEVATTACHED) \
658 && crom_has_specver((fwdev)->csrrom, CSRVAL_ANSIT10, CSRVAL_T10SBP2))
659
660 static void
661 sbp_probe_target(void *arg)
662 {
663 struct sbp_target *target = (struct sbp_target *)arg;
664 struct sbp_softc *sbp;
665 struct sbp_dev *sdev;
666 struct firewire_comm *fc;
667 int i, alive;
668
669 alive = SBP_FWDEV_ALIVE(target->fwdev);
670 SBP_DEBUG(1)
671 kprintf("sbp_probe_target %d\n", target->target_id);
672 if (!alive)
673 kprintf("not alive\n");
674 END_DEBUG
675
676 sbp = target->sbp;
677 fc = target->sbp->fd.fc;
678 sbp_alloc_lun(target);
679
680 /* XXX callout_stop mgm_ocb and dequeue */
681 for (i=0; i < target->num_lun; i++) {
682 sdev = target->luns[i];
683 if (sdev == NULL)
684 continue;
685 if (alive && (sdev->status != SBP_DEV_DEAD)) {
686 if (sdev->path != NULL) {
687 xpt_freeze_devq(sdev->path, 1);
688 sdev->freeze ++;
689 }
690 sbp_probe_lun(sdev);
691 SBP_DEBUG(0)
692 sbp_show_sdev_info(sdev,
693 (sdev->status == SBP_DEV_RESET));
694 END_DEBUG
695
696 sbp_abort_all_ocbs(sdev, CAM_SCSI_BUS_RESET);
697 switch (sdev->status) {
698 case SBP_DEV_RESET:
699 /* new or revived target */
700 if (auto_login)
701 sbp_login(sdev);
702 break;
703 case SBP_DEV_TOATTACH:
704 case SBP_DEV_PROBE:
705 case SBP_DEV_ATTACHED:
706 case SBP_DEV_RETRY:
707 default:
708 sbp_mgm_orb(sdev, ORB_FUN_RCN, NULL);
709 break;
710 }
711 } else {
712 switch (sdev->status) {
713 case SBP_DEV_ATTACHED:
714 SBP_DEBUG(0)
715 /* the device has gone */
716 sbp_show_sdev_info(sdev, 2);
717 kprintf("lost target\n");
718 END_DEBUG
719 if (sdev->path) {
720 xpt_freeze_devq(sdev->path, 1);
721 sdev->freeze ++;
722 }
723 sdev->status = SBP_DEV_RETRY;
724 sbp_abort_all_ocbs(sdev, CAM_SCSI_BUS_RESET);
725 break;
726 case SBP_DEV_PROBE:
727 case SBP_DEV_TOATTACH:
728 sdev->status = SBP_DEV_RESET;
729 break;
730 case SBP_DEV_RETRY:
731 case SBP_DEV_RESET:
732 case SBP_DEV_DEAD:
733 break;
734 }
735 }
736 }
737 }
738
739 static void
740 sbp_post_busreset(void *arg)
741 {
742 struct sbp_softc *sbp;
743
744 sbp = (struct sbp_softc *)arg;
745 SBP_DEBUG(0)
746 kprintf("sbp_post_busreset\n");
747 END_DEBUG
748 if ((sbp->sim->flags & SIMQ_FREEZED) == 0) {
749 xpt_freeze_simq(sbp->sim, /*count*/1);
750 sbp->sim->flags |= SIMQ_FREEZED;
751 }
752 microtime(&sbp->last_busreset);
753 }
754
755 static void
756 sbp_post_explore(void *arg)
757 {
758 struct sbp_softc *sbp = (struct sbp_softc *)arg;
759 struct sbp_target *target;
760 struct fw_device *fwdev;
761 int i, alive;
762
763 SBP_DEBUG(0)
764 kprintf("sbp_post_explore\n");
765 END_DEBUG
766 #if 0
767 if (sbp_cold > 0)
768 sbp_cold --;
769 #endif
770
771 #if 0
772 /*
773 * XXX don't let CAM the bus rest.
774 * CAM tries to do something with freezed (DEV_RETRY) devices.
775 */
776 xpt_async(AC_BUS_RESET, sbp->path, /*arg*/ NULL);
777 #endif
778
779 /* Gabage Collection */
780 for(i = 0 ; i < SBP_NUM_TARGETS ; i ++){
781 target = &sbp->targets[i];
782 STAILQ_FOREACH(fwdev, &sbp->fd.fc->devices, link)
783 if (target->fwdev == NULL || target->fwdev == fwdev)
784 break;
785 if (fwdev == NULL) {
786 /* device has removed in lower driver */
787 sbp_cam_detach_target(target);
788 sbp_free_target(target);
789 }
790 }
791 /* traverse device list */
792 STAILQ_FOREACH(fwdev, &sbp->fd.fc->devices, link) {
793 SBP_DEBUG(0)
794 kprintf("sbp_post_explore: EUI:%08x%08x ",
795 fwdev->eui.hi, fwdev->eui.lo);
796 if (fwdev->status != FWDEVATTACHED)
797 kprintf("not attached, state=%d.\n", fwdev->status);
798 else
799 kprintf("attached\n");
800 END_DEBUG
801 alive = SBP_FWDEV_ALIVE(fwdev);
802 for(i = 0 ; i < SBP_NUM_TARGETS ; i ++){
803 target = &sbp->targets[i];
804 if(target->fwdev == fwdev ) {
805 /* known target */
806 break;
807 }
808 }
809 if(i == SBP_NUM_TARGETS){
810 if (alive) {
811 /* new target */
812 target = sbp_alloc_target(sbp, fwdev);
813 if (target == NULL)
814 continue;
815 } else {
816 continue;
817 }
818 }
819 sbp_probe_target((void *)target);
820 if (target->num_lun == 0)
821 sbp_free_target(target);
822 }
823 xpt_release_simq(sbp->sim, /*run queue*/TRUE);
824 sbp->sim->flags &= ~SIMQ_FREEZED;
825 }
826
827 #if NEED_RESPONSE
828 static void
829 sbp_loginres_callback(struct fw_xfer *xfer){
830 struct sbp_dev *sdev;
831 sdev = (struct sbp_dev *)xfer->sc;
832 SBP_DEBUG(1)
833 sbp_show_sdev_info(sdev, 2);
834 kprintf("sbp_loginres_callback\n");
835 END_DEBUG
836 /* recycle */
837 crit_enter();
838 STAILQ_INSERT_TAIL(&sdev->target->sbp->fwb.xferlist, xfer, link);
839 crit_exit();
840 return;
841 }
842 #endif
843
844 static __inline void
845 sbp_xfer_free(struct fw_xfer *xfer)
846 {
847 struct sbp_dev *sdev;
848
849 sdev = (struct sbp_dev *)xfer->sc;
850 fw_xfer_unload(xfer);
851 crit_enter();
852 STAILQ_INSERT_TAIL(&sdev->target->xferlist, xfer, link);
853 crit_exit();
854 }
855
856 static void
857 sbp_reset_start_callback(struct fw_xfer *xfer)
858 {
859 struct sbp_dev *tsdev, *sdev = (struct sbp_dev *)xfer->sc;
860 struct sbp_target *target = sdev->target;
861 int i;
862
863 if (xfer->resp != 0) {
864 sbp_show_sdev_info(sdev, 2);
865 kprintf("sbp_reset_start failed: resp=%d\n", xfer->resp);
866 }
867
868 for (i = 0; i < target->num_lun; i++) {
869 tsdev = target->luns[i];
870 if (tsdev != NULL && tsdev->status == SBP_DEV_LOGIN)
871 sbp_login(tsdev);
872 }
873 }
874
875 static void
876 sbp_reset_start(struct sbp_dev *sdev)
877 {
878 struct fw_xfer *xfer;
879 struct fw_pkt *fp;
880
881 SBP_DEBUG(0)
882 sbp_show_sdev_info(sdev, 2);
883 kprintf("sbp_reset_start\n");
884 END_DEBUG
885
886 xfer = sbp_write_cmd(sdev, FWTCODE_WREQQ, 0);
887 xfer->act.hand = sbp_reset_start_callback;
888 fp = &xfer->send.hdr;
889 fp->mode.wreqq.dest_hi = 0xffff;
890 fp->mode.wreqq.dest_lo = 0xf0000000 | RESET_START;
891 fp->mode.wreqq.data = htonl(0xf);
892 fw_asyreq(xfer->fc, -1, xfer);
893 }
894
895 static void
896 sbp_mgm_callback(struct fw_xfer *xfer)
897 {
898 struct sbp_dev *sdev;
899 int resp;
900
901 sdev = (struct sbp_dev *)xfer->sc;
902
903 SBP_DEBUG(1)
904 sbp_show_sdev_info(sdev, 2);
905 kprintf("sbp_mgm_callback\n");
906 END_DEBUG
907 resp = xfer->resp;
908 sbp_xfer_free(xfer);
909 #if 0
910 if (resp != 0) {
911 sbp_show_sdev_info(sdev, 2);
912 kprintf("management ORB failed(%d) ... RESET_START\n", resp);
913 sbp_reset_start(sdev);
914 }
915 #endif
916 return;
917 }
918
919 static struct sbp_dev *
920 sbp_next_dev(struct sbp_target *target, int lun)
921 {
922 struct sbp_dev **sdevp;
923 int i;
924
925 for (i = lun, sdevp = &target->luns[lun]; i < target->num_lun;
926 i++, sdevp++)
927 if (*sdevp != NULL && (*sdevp)->status == SBP_DEV_PROBE)
928 return(*sdevp);
929 return(NULL);
930 }
931
932 #define SCAN_PRI 1
933 static void
934 sbp_cam_scan_lun(struct cam_periph *periph, union ccb *ccb)
935 {
936 struct sbp_target *target;
937 struct sbp_dev *sdev;
938
939 sdev = (struct sbp_dev *) ccb->ccb_h.ccb_sdev_ptr;
940 target = sdev->target;
941 SBP_DEBUG(0)
942 sbp_show_sdev_info(sdev, 2);
943 kprintf("sbp_cam_scan_lun\n");
944 END_DEBUG
945 if ((ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP) {
946 sdev->status = SBP_DEV_ATTACHED;
947 } else {
948 sbp_show_sdev_info(sdev, 2);
949 kprintf("scan failed\n");
950 }
951 sdev = sbp_next_dev(target, sdev->lun_id + 1);
952 if (sdev == NULL) {
953 kfree(ccb, M_SBP);
954 return;
955 }
956 /* reuse ccb */
957 xpt_setup_ccb(&ccb->ccb_h, sdev->path, SCAN_PRI);
958 ccb->ccb_h.ccb_sdev_ptr = sdev;
959 xpt_action(ccb);
960 xpt_release_devq(sdev->path, sdev->freeze, TRUE);
961 sdev->freeze = 1;
962 }
963
964 static void
965 sbp_cam_scan_target(void *arg)
966 {
967 struct sbp_target *target = (struct sbp_target *)arg;
968 struct sbp_dev *sdev;
969 union ccb *ccb;
970
971 sdev = sbp_next_dev(target, 0);
972 if (sdev == NULL) {
973 kprintf("sbp_cam_scan_target: nothing to do for target%d\n",
974 target->target_id);
975 return;
976 }
977 SBP_DEBUG(0)
978 sbp_show_sdev_info(sdev, 2);
979 kprintf("sbp_cam_scan_target\n");
980 END_DEBUG
981 ccb = kmalloc(sizeof(union ccb), M_SBP, M_WAITOK | M_ZERO);
982 xpt_setup_ccb(&ccb->ccb_h, sdev->path, SCAN_PRI);
983 ccb->ccb_h.func_code = XPT_SCAN_LUN;
984 ccb->ccb_h.cbfcnp = sbp_cam_scan_lun;
985 ccb->ccb_h.flags |= CAM_DEV_QFREEZE;
986 ccb->crcn.flags = CAM_FLAG_NONE;
987 ccb->ccb_h.ccb_sdev_ptr = sdev;
988
989 /* The scan is in progress now. */
990 xpt_action(ccb);
991 xpt_release_devq(sdev->path, sdev->freeze, TRUE);
992 sdev->freeze = 1;
993 }
994
995 static __inline void
996 sbp_scan_dev(struct sbp_dev *sdev)
997 {
998 sdev->status = SBP_DEV_PROBE;
999 callout_reset(&sdev->target->scan_callout, scan_delay * hz / 1000,
1000 sbp_cam_scan_target, (void *)sdev->target);
1001 }
1002
1003 static void
1004 sbp_do_attach(struct fw_xfer *xfer)
1005 {
1006 struct sbp_dev *sdev;
1007 struct sbp_target *target;
1008 struct sbp_softc *sbp;
1009
1010 sdev = (struct sbp_dev *)xfer->sc;
1011 target = sdev->target;
1012 sbp = target->sbp;
1013 SBP_DEBUG(0)
1014 sbp_show_sdev_info(sdev, 2);
1015 kprintf("sbp_do_attach\n");
1016 END_DEBUG
1017 sbp_xfer_free(xfer);
1018
1019 if (sdev->path == NULL)
1020 xpt_create_path(&sdev->path, xpt_periph,
1021 cam_sim_path(target->sbp->sim),
1022 target->target_id, sdev->lun_id);
1023
1024 #if 0
1025 /*
1026 * Let CAM scan the bus if we are in the boot process.
1027 * XXX xpt_scan_bus cannot detect LUN larger than 0
1028 * if LUN 0 doesn't exists.
1029 */
1030 if (sbp_cold > 0) {
1031 sdev->status = SBP_DEV_ATTACHED;
1032 return;
1033 }
1034 #endif
1035
1036 sbp_scan_dev(sdev);
1037 return;
1038 }
1039
1040 static void
1041 sbp_agent_reset_callback(struct fw_xfer *xfer)
1042 {
1043 struct sbp_dev *sdev;
1044
1045 sdev = (struct sbp_dev *)xfer->sc;
1046 SBP_DEBUG(1)
1047 sbp_show_sdev_info(sdev, 2);
1048 kprintf("%s\n", __func__);
1049 END_DEBUG
1050 if (xfer->resp != 0) {
1051 sbp_show_sdev_info(sdev, 2);
1052 kprintf("%s: resp=%d\n", __func__, xfer->resp);
1053 }
1054
1055 sbp_xfer_free(xfer);
1056 if (sdev->path) {
1057 xpt_release_devq(sdev->path, sdev->freeze, TRUE);
1058 sdev->freeze = 0;
1059 }
1060 }
1061
1062 static void
1063 sbp_agent_reset(struct sbp_dev *sdev)
1064 {
1065 struct fw_xfer *xfer;
1066 struct fw_pkt *fp;
1067
1068 SBP_DEBUG(0)
1069 sbp_show_sdev_info(sdev, 2);
1070 kprintf("sbp_agent_reset\n");
1071 END_DEBUG
1072 xfer = sbp_write_cmd(sdev, FWTCODE_WREQQ, 0x04);
1073 if (xfer == NULL)
1074 return;
1075 if (sdev->status == SBP_DEV_ATTACHED || sdev->status == SBP_DEV_PROBE)
1076 xfer->act.hand = sbp_agent_reset_callback;
1077 else
1078 xfer->act.hand = sbp_do_attach;
1079 fp = &xfer->send.hdr;
1080 fp->mode.wreqq.data = htonl(0xf);
1081 fw_asyreq(xfer->fc, -1, xfer);
1082 sbp_abort_all_ocbs(sdev, CAM_BDR_SENT);
1083 }
1084
1085 static void
1086 sbp_busy_timeout_callback(struct fw_xfer *xfer)
1087 {
1088 struct sbp_dev *sdev;
1089
1090 sdev = (struct sbp_dev *)xfer->sc;
1091 SBP_DEBUG(1)
1092 sbp_show_sdev_info(sdev, 2);
1093 kprintf("sbp_busy_timeout_callback\n");
1094 END_DEBUG
1095 sbp_xfer_free(xfer);
1096 sbp_agent_reset(sdev);
1097 }
1098
1099 static void
1100 sbp_busy_timeout(struct sbp_dev *sdev)
1101 {
1102 struct fw_pkt *fp;
1103 struct fw_xfer *xfer;
1104 SBP_DEBUG(0)
1105 sbp_show_sdev_info(sdev, 2);
1106 kprintf("sbp_busy_timeout\n");
1107 END_DEBUG
1108 xfer = sbp_write_cmd(sdev, FWTCODE_WREQQ, 0);
1109
1110 xfer->act.hand = sbp_busy_timeout_callback;
1111 fp = &xfer->send.hdr;
1112 fp->mode.wreqq.dest_hi = 0xffff;
1113 fp->mode.wreqq.dest_lo = 0xf0000000 | BUSY_TIMEOUT;
1114 fp->mode.wreqq.data = htonl((1 << (13+12)) | 0xf);
1115 fw_asyreq(xfer->fc, -1, xfer);
1116 }
1117
1118 static void
1119 sbp_orb_pointer_callback(struct fw_xfer *xfer)
1120 {
1121 struct sbp_dev *sdev;
1122 sdev = (struct sbp_dev *)xfer->sc;
1123
1124 SBP_DEBUG(1)
1125 sbp_show_sdev_info(sdev, 2);
1126 kprintf("%s\n", __func__);
1127 END_DEBUG
1128 if (xfer->resp != 0) {
1129 /* XXX */
1130 kprintf("%s: xfer->resp = %d\n", __func__, xfer->resp);
1131 }
1132 sbp_xfer_free(xfer);
1133 sdev->flags &= ~ORB_POINTER_ACTIVE;
1134
1135 if ((sdev->flags & ORB_POINTER_NEED) != 0) {
1136 struct sbp_ocb *ocb;
1137
1138 sdev->flags &= ~ORB_POINTER_NEED;
1139 ocb = STAILQ_FIRST(&sdev->ocbs);
1140 if (ocb != NULL)
1141 sbp_orb_pointer(sdev, ocb);
1142 }
1143 return;
1144 }
1145
1146 static void
1147 sbp_orb_pointer(struct sbp_dev *sdev, struct sbp_ocb *ocb)
1148 {
1149 struct fw_xfer *xfer;
1150 struct fw_pkt *fp;
1151 SBP_DEBUG(1)
1152 sbp_show_sdev_info(sdev, 2);
1153 kprintf("%s: 0x%08x\n", __func__, (u_int32_t)ocb->bus_addr);
1154 END_DEBUG
1155
1156 if ((sdev->flags & ORB_POINTER_ACTIVE) != 0) {
1157 SBP_DEBUG(0)
1158 kprintf("%s: orb pointer active\n", __func__);
1159 END_DEBUG
1160 sdev->flags |= ORB_POINTER_NEED;
1161 return;
1162 }
1163
1164 sdev->flags |= ORB_POINTER_ACTIVE;
1165 xfer = sbp_write_cmd(sdev, FWTCODE_WREQB, 0x08);
1166 if (xfer == NULL)
1167 return;
1168 xfer->act.hand = sbp_orb_pointer_callback;
1169
1170 fp = &xfer->send.hdr;
1171 fp->mode.wreqb.len = 8;
1172 fp->mode.wreqb.extcode = 0;
1173 xfer->send.payload[0] =
1174 htonl(((sdev->target->sbp->fd.fc->nodeid | FWLOCALBUS )<< 16));
1175 xfer->send.payload[1] = htonl((u_int32_t)ocb->bus_addr);
1176
1177 if(fw_asyreq(xfer->fc, -1, xfer) != 0){
1178 sbp_xfer_free(xfer);
1179 ocb->ccb->ccb_h.status = CAM_REQ_INVALID;
1180 xpt_done(ocb->ccb);
1181 }
1182 }
1183
1184 #if 0
1185 static void
1186 sbp_cmd_callback(struct fw_xfer *xfer)
1187 {
1188 SBP_DEBUG(1)
1189 struct sbp_dev *sdev;
1190 sdev = (struct sbp_dev *)xfer->sc;
1191 sbp_show_sdev_info(sdev, 2);
1192 kprintf("sbp_cmd_callback\n");
1193 END_DEBUG
1194 if (xfer->resp != 0) {
1195 /* XXX */
1196 kprintf("%s: xfer->resp = %d\n", __func__, xfer->resp);
1197 }
1198 sbp_xfer_free(xfer);
1199 return;
1200 }
1201
1202 static void
1203 sbp_doorbell(struct sbp_dev *sdev)
1204 {
1205 struct fw_xfer *xfer;
1206 struct fw_pkt *fp;
1207 SBP_DEBUG(1)
1208 sbp_show_sdev_info(sdev, 2);
1209 kprintf("sbp_doorbell\n");
1210 END_DEBUG
1211
1212 xfer = sbp_write_cmd(sdev, FWTCODE_WREQQ, 0x10);
1213 if (xfer == NULL)
1214 return;
1215 xfer->act.hand = sbp_cmd_callback;
1216 fp = (struct fw_pkt *)xfer->send.buf;
1217 fp->mode.wreqq.data = htonl(0xf);
1218 fw_asyreq(xfer->fc, -1, xfer);
1219 }
1220 #endif
1221
1222 static struct fw_xfer *
1223 sbp_write_cmd(struct sbp_dev *sdev, int tcode, int offset)
1224 {
1225 struct fw_xfer *xfer;
1226 struct fw_pkt *fp;
1227 struct sbp_target *target;
1228 int new = 0;
1229
1230 target = sdev->target;
1231 crit_enter();
1232 xfer = STAILQ_FIRST(&target->xferlist);
1233 if (xfer == NULL) {
1234 if (target->n_xfer > 5 /* XXX */) {
1235 kprintf("sbp: no more xfer for this target\n");
1236 crit_exit();
1237 return(NULL);
1238 }
1239 xfer = fw_xfer_alloc_buf(M_SBP, 8, 0);
1240 if(xfer == NULL){
1241 kprintf("sbp: fw_xfer_alloc_buf failed\n");
1242 crit_exit();
1243 return NULL;
1244 }
1245 target->n_xfer ++;
1246 if (debug)
1247 kprintf("sbp: alloc %d xfer\n", target->n_xfer);
1248 new = 1;
1249 } else {
1250 STAILQ_REMOVE_HEAD(&target->xferlist, link);
1251 }
1252 crit_exit();
1253
1254 microtime(&xfer->tv);
1255
1256 if (new) {
1257 xfer->recv.pay_len = 0;
1258 xfer->send.spd = min(sdev->target->fwdev->speed, max_speed);
1259 xfer->fc = sdev->target->sbp->fd.fc;
1260 xfer->retry_req = fw_asybusy;
1261 }
1262
1263 if (tcode == FWTCODE_WREQB)
1264 xfer->send.pay_len = 8;
1265 else
1266 xfer->send.pay_len = 0;
1267
1268 xfer->sc = (caddr_t)sdev;
1269 fp = &xfer->send.hdr;
1270 fp->mode.wreqq.dest_hi = sdev->login->cmd_hi;
1271 fp->mode.wreqq.dest_lo = sdev->login->cmd_lo + offset;
1272 fp->mode.wreqq.tlrt = 0;
1273 fp->mode.wreqq.tcode = tcode;
1274 fp->mode.wreqq.pri = 0;
1275 fp->mode.wreqq.dst = FWLOCALBUS | sdev->target->fwdev->dst;
1276
1277 return xfer;
1278
1279 }
1280
1281 static void
1282 sbp_mgm_orb(struct sbp_dev *sdev, int func, struct sbp_ocb *aocb)
1283 {
1284 struct fw_xfer *xfer;
1285 struct fw_pkt *fp;
1286 struct sbp_ocb *ocb;
1287 struct sbp_target *target;
1288 int nid;
1289
1290 target = sdev->target;
1291 nid = target->sbp->fd.fc->nodeid | FWLOCALBUS;
1292
1293 crit_enter();
1294 if (func == ORB_FUN_RUNQUEUE) {
1295 ocb = STAILQ_FIRST(&target->mgm_ocb_queue);
1296 if (target->mgm_ocb_cur != NULL || ocb == NULL) {
1297 crit_exit();
1298 return;
1299 }
1300 STAILQ_REMOVE_HEAD(&target->mgm_ocb_queue, ocb);
1301 goto start;
1302 }
1303 if ((ocb = sbp_get_ocb(sdev)) == NULL) {
1304 crit_exit();
1305 /* XXX */
1306 return;
1307 }
1308 ocb->flags = OCB_ACT_MGM;
1309 ocb->sdev = sdev;
1310
1311 bzero((void *)ocb->orb, sizeof(ocb->orb));
1312 ocb->orb[6] = htonl((nid << 16) | SBP_BIND_HI);
1313 ocb->orb[7] = htonl(SBP_DEV2ADDR(target->target_id, sdev->lun_id));
1314
1315 SBP_DEBUG(0)
1316 sbp_show_sdev_info(sdev, 2);
1317 kprintf("%s\n", orb_fun_name[(func>>16)&0xf]);
1318 END_DEBUG
1319 switch (func) {
1320 case ORB_FUN_LGI:
1321 ocb->orb[0] = ocb->orb[1] = 0; /* password */
1322 ocb->orb[2] = htonl(nid << 16);
1323 ocb->orb[3] = htonl(sdev->dma.bus_addr);
1324 ocb->orb[4] = htonl(ORB_NOTIFY | sdev->lun_id);
1325 if (ex_login)
1326 ocb->orb[4] |= htonl(ORB_EXV);
1327 ocb->orb[5] = htonl(SBP_LOGIN_SIZE);
1328 fwdma_sync(&sdev->dma, BUS_DMASYNC_PREREAD);
1329 break;
1330 case ORB_FUN_ATA:
1331 ocb->orb[0] = htonl((0 << 16) | 0);
1332 ocb->orb[1] = htonl(aocb->bus_addr & 0xffffffff);
1333 /* fall through */
1334 case ORB_FUN_RCN:
1335 case ORB_FUN_LGO:
1336 case ORB_FUN_LUR:
1337 case ORB_FUN_RST:
1338 case ORB_FUN_ATS:
1339 ocb->orb[4] = htonl(ORB_NOTIFY | func | sdev->login->id);
1340 break;
1341 }
1342
1343 if (target->mgm_ocb_cur != NULL) {
1344 /* there is a standing ORB */
1345 STAILQ_INSERT_TAIL(&sdev->target->mgm_ocb_queue, ocb, ocb);
1346 crit_exit();
1347 return;
1348 }
1349 start:
1350 target->mgm_ocb_cur = ocb;
1351 crit_exit();
1352
1353 callout_reset(&target->mgm_ocb_timeout, 5*hz,
1354 sbp_mgm_timeout, (caddr_t)ocb);
1355 xfer = sbp_write_cmd(sdev, FWTCODE_WREQB, 0);
1356 if(xfer == NULL){
1357 return;
1358 }
1359 xfer->act.hand = sbp_mgm_callback;
1360
1361 fp = &xfer->send.hdr;
1362 fp->mode.wreqb.dest_hi = sdev->target->mgm_hi;
1363 fp->mode.wreqb.dest_lo = sdev->target->mgm_lo;
1364 fp->mode.wreqb.len = 8;
1365 fp->mode.wreqb.extcode = 0;
1366 xfer->send.payload[0] = htonl(nid << 16);
1367 xfer->send.payload[1] = htonl(ocb->bus_addr & 0xffffffff);
1368 SBP_DEBUG(0)
1369 sbp_show_sdev_info(sdev, 2);
1370 kprintf("mgm orb: %08x\n", (u_int32_t)ocb->bus_addr);
1371 END_DEBUG
1372
1373 fw_asyreq(xfer->fc, -1, xfer);
1374 }
1375
1376 static void
1377 sbp_print_scsi_cmd(struct sbp_ocb *ocb)
1378 {
1379 struct ccb_scsiio *csio;
1380
1381 csio = &ocb->ccb->csio;
1382 kprintf("%s:%d:%d XPT_SCSI_IO: "
1383 "cmd: %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x"
1384 ", flags: 0x%02x, "
1385 "%db cmd/%db data/%db sense\n",
1386 device_get_nameunit(ocb->sdev->target->sbp->fd.dev),
1387 ocb->ccb->ccb_h.target_id, ocb->ccb->ccb_h.target_lun,
1388 csio->cdb_io.cdb_bytes[0],
1389 csio->cdb_io.cdb_bytes[1],
1390 csio->cdb_io.cdb_bytes[2],
1391 csio->cdb_io.cdb_bytes[3],
1392 csio->cdb_io.cdb_bytes[4],
1393 csio->cdb_io.cdb_bytes[5],
1394 csio->cdb_io.cdb_bytes[6],
1395 csio->cdb_io.cdb_bytes[7],
1396 csio->cdb_io.cdb_bytes[8],
1397 csio->cdb_io.cdb_bytes[9],
1398 ocb->ccb->ccb_h.flags & CAM_DIR_MASK,
1399 csio->cdb_len, csio->dxfer_len,
1400 csio->sense_len);
1401 }
1402
1403 static void
1404 sbp_scsi_status(struct sbp_status *sbp_status, struct sbp_ocb *ocb)
1405 {
1406 struct sbp_cmd_status *sbp_cmd_status;
1407 struct scsi_sense_data *sense;
1408
1409 sbp_cmd_status = (struct sbp_cmd_status *)sbp_status->data;
1410 sense = &ocb->ccb->csio.sense_data;
1411
1412 SBP_DEBUG(0)
1413 sbp_print_scsi_cmd(ocb);
1414 /* XXX need decode status */
1415 sbp_show_sdev_info(ocb->sdev, 2);
1416 kprintf("SCSI status %x sfmt %x valid %x key %x code %x qlfr %x len %d\n",
1417 sbp_cmd_status->status,
1418 sbp_cmd_status->sfmt,
1419 sbp_cmd_status->valid,
1420 sbp_cmd_status->s_key,
1421 sbp_cmd_status->s_code,
1422 sbp_cmd_status->s_qlfr,
1423 sbp_status->len
1424 );
1425 END_DEBUG
1426
1427 switch (sbp_cmd_status->status) {
1428 case SCSI_STATUS_CHECK_COND:
1429 case SCSI_STATUS_BUSY:
1430 case SCSI_STATUS_CMD_TERMINATED:
1431 if(sbp_cmd_status->sfmt == SBP_SFMT_CURR){
1432 sense->error_code = SSD_CURRENT_ERROR;
1433 }else{
1434 sense->error_code = SSD_DEFERRED_ERROR;
1435 }
1436 if(sbp_cmd_status->valid)
1437 sense->error_code |= SSD_ERRCODE_VALID;
1438 sense->flags = sbp_cmd_status->s_key;
1439 if(sbp_cmd_status->mark)
1440 sense->flags |= SSD_FILEMARK;
1441 if(sbp_cmd_status->eom)
1442 sense->flags |= SSD_EOM;
1443 if(sbp_cmd_status->ill_len)
1444 sense->flags |= SSD_ILI;
1445
1446 bcopy(&sbp_cmd_status->info, &sense->info[0], 4);
1447
1448 if (sbp_status->len <= 1)
1449 /* XXX not scsi status. shouldn't be happened */
1450 sense->extra_len = 0;
1451 else if (sbp_status->len <= 4)
1452 /* add_sense_code(_qual), info, cmd_spec_info */
1453 sense->extra_len = 6;
1454 else
1455 /* fru, sense_key_spec */
1456 sense->extra_len = 10;
1457
1458 bcopy(&sbp_cmd_status->cdb, &sense->cmd_spec_info[0], 4);
1459
1460 sense->add_sense_code = sbp_cmd_status->s_code;
1461 sense->add_sense_code_qual = sbp_cmd_status->s_qlfr;
1462 sense->fru = sbp_cmd_status->fru;
1463
1464 bcopy(&sbp_cmd_status->s_keydep[0],
1465 &sense->sense_key_spec[0], 3);
1466
1467 ocb->ccb->csio.scsi_status = sbp_cmd_status->status;
1468 ocb->ccb->ccb_h.status = CAM_SCSI_STATUS_ERROR
1469 | CAM_AUTOSNS_VALID;
1470 /*
1471 {
1472 u_int8_t j, *tmp;
1473 tmp = sense;
1474 for( j = 0 ; j < 32 ; j+=8){
1475 kprintf("sense %02x%02x %02x%02x %02x%02x %02x%02x\n",
1476 tmp[j], tmp[j+1], tmp[j+2], tmp[j+3],
1477 tmp[j+4], tmp[j+5], tmp[j+6], tmp[j+7]);
1478 }
1479
1480 }
1481 */
1482 break;
1483 default:
1484 sbp_show_sdev_info(ocb->sdev, 2);
1485 kprintf("sbp_scsi_status: unknown scsi status 0x%x\n",
1486 sbp_cmd_status->status);
1487 }
1488 }
1489
1490 static void
1491 sbp_fix_inq_data(struct sbp_ocb *ocb)
1492 {
1493 union ccb *ccb;
1494 struct sbp_dev *sdev;
1495 struct scsi_inquiry_data *inq;
1496
1497 ccb = ocb->ccb;
1498 sdev = ocb->sdev;
1499
1500 if (ccb->csio.cdb_io.cdb_bytes[1] & SI_EVPD)
1501 return;
1502 SBP_DEBUG(1)
1503 sbp_show_sdev_info(sdev, 2);
1504 kprintf("sbp_fix_inq_data\n");
1505 END_DEBUG
1506 inq = (struct scsi_inquiry_data *) ccb->csio.data_ptr;
1507 switch (SID_TYPE(inq)) {
1508 case T_DIRECT:
1509 #if 0
1510 /*
1511 * XXX Convert Direct Access device to RBC.
1512 * I've never seen FireWire DA devices which support READ_6.
1513 */
1514 if (SID_TYPE(inq) == T_DIRECT)
1515 inq->device |= T_RBC; /* T_DIRECT == 0 */
1516 #endif
1517 /* fall through */
1518 case T_RBC:
1519 /* enable tagged queuing */
1520 if (sbp_tags)
1521 inq->flags |= SID_CmdQue;
1522 else
1523 inq->flags &= ~SID_CmdQue;
1524 /*
1525 * Override vendor/product/revision information.
1526 * Some devices sometimes return strange strings.
1527 */
1528 #if 1
1529 bcopy(sdev->vendor, inq->vendor, sizeof(inq->vendor));
1530 bcopy(sdev->product, inq->product, sizeof(inq->product));
1531 bcopy(sdev->revision+2, inq->revision, sizeof(inq->revision));
1532 #endif
1533 break;
1534 }
1535 }
1536
1537 static void
1538 sbp_recv1(struct fw_xfer *xfer)
1539 {
1540 struct fw_pkt *rfp;
1541 #if NEED_RESPONSE
1542 struct fw_pkt *sfp;
1543 #endif
1544 struct sbp_softc *sbp;
1545 struct sbp_dev *sdev;
1546 struct sbp_ocb *ocb;
1547 struct sbp_login_res *login_res = NULL;
1548 struct sbp_status *sbp_status;
1549 struct sbp_target *target;
1550 int orb_fun, status_valid0, status_valid, t, l, reset_agent = 0;
1551 u_int32_t addr;
1552 /*
1553 u_int32_t *ld;
1554 ld = xfer->recv.buf;
1555 kprintf("sbp %x %d %d %08x %08x %08x %08x\n",
1556 xfer->resp, xfer->recv.len, xfer->recv.off, ntohl(ld[0]), ntohl(ld[1]), ntohl(ld[2]), ntohl(ld[3]));
1557 kprintf("sbp %08x %08x %08x %08x\n", ntohl(ld[4]), ntohl(ld[5]), ntohl(ld[6]), ntohl(ld[7]));
1558 kprintf("sbp %08x %08x %08x %08x\n", ntohl(ld[8]), ntohl(ld[9]), ntohl(ld[10]), ntohl(ld[11]));
1559 */
1560 sbp = (struct sbp_softc *)xfer->sc;
1561 if (xfer->resp != 0){
1562 kprintf("sbp_recv: xfer->resp = %d\n", xfer->resp);
1563 goto done0;
1564 }
1565 if (xfer->recv.payload == NULL){
1566 kprintf("sbp_recv: xfer->recv.payload == NULL\n");
1567 goto done0;
1568 }
1569 rfp = &xfer->recv.hdr;
1570 if(rfp->mode.wreqb.tcode != FWTCODE_WREQB){
1571 kprintf("sbp_recv: tcode = %d\n", rfp->mode.wreqb.tcode);
1572 goto done0;
1573 }
1574 sbp_status = (struct sbp_status *)xfer->recv.payload;
1575 addr = rfp->mode.wreqb.dest_lo;
1576 SBP_DEBUG(2)
1577 kprintf("received address 0x%x\n", addr);
1578 END_DEBUG
1579 t = SBP_ADDR2TRG(addr);
1580 if (t >= SBP_NUM_TARGETS) {
1581 device_printf(sbp->fd.dev,
1582 "sbp_recv1: invalid target %d\n", t);
1583 goto done0;
1584 }
1585 target = &sbp->targets[t];
1586 l = SBP_ADDR2LUN(addr);
1587 if (l >= target->num_lun || target->luns[l] == NULL) {
1588 device_printf(sbp->fd.dev,
1589 "sbp_recv1: invalid lun %d (target=%d)\n", l, t);
1590 goto done0;
1591 }
1592 sdev = target->luns[l];
1593
1594 ocb = NULL;
1595 switch (sbp_status->src) {
1596 case 0:
1597 case 1:
1598 /* check mgm_ocb_cur first */
1599 ocb = target->mgm_ocb_cur;
1600 if (ocb != NULL) {
1601 if (OCB_MATCH(ocb, sbp_status)) {
1602 callout_stop(&target->mgm_ocb_timeout);
1603 target->mgm_ocb_cur = NULL;
1604 break;
1605 }
1606 }
1607 ocb = sbp_dequeue_ocb(sdev, sbp_status);
1608 if (ocb == NULL) {
1609 sbp_show_sdev_info(sdev, 2);
1610 kprintf("No ocb(%x) on the queue\n",
1611 ntohl(sbp_status->orb_lo));
1612 }
1613 break;
1614 case 2:
1615 /* unsolicit */
1616 sbp_show_sdev_info(sdev, 2);
1617 kprintf("unsolicit status received\n");
1618 break;
1619 default:
1620 sbp_show_sdev_info(sdev, 2);
1621 kprintf("unknown sbp_status->src\n");
1622 }
1623
1624 status_valid0 = (sbp_status->src < 2
1625 && sbp_status->resp == ORB_RES_CMPL
1626 && sbp_status->dead == 0);
1627 status_valid = (status_valid0 && sbp_status->status == 0);
1628
1629 if (!status_valid0 || debug > 2){
1630 int status;
1631 SBP_DEBUG(0)
1632 sbp_show_sdev_info(sdev, 2);
1633 kprintf("ORB status src:%x resp:%x dead:%x"
1634 " len:%x stat:%x orb:%x%08x\n",
1635 sbp_status->src, sbp_status->resp, sbp_status->dead,
1636 sbp_status->len, sbp_status->status,
1637 ntohs(sbp_status->orb_hi), ntohl(sbp_status->orb_lo));
1638 END_DEBUG
1639 sbp_show_sdev_info(sdev, 2);
1640 status = sbp_status->status;
1641 switch(sbp_status->resp) {
1642 case 0:
1643 if (status > MAX_ORB_STATUS0)
1644 kprintf("%s\n", orb_status0[MAX_ORB_STATUS0]);
1645 else
1646 kprintf("%s\n", orb_status0[status]);
1647 break;
1648 case 1:
1649 kprintf("Obj: %s, Error: %s\n",
1650 orb_status1_object[(status>>6) & 3],
1651 orb_status1_serial_bus_error[status & 0xf]);
1652 break;
1653 case 2:
1654 kprintf("Illegal request\n");
1655 break;
1656 case 3:
1657 kprintf("Vendor dependent\n");
1658 break;
1659 default:
1660 kprintf("unknown respose code %d\n", sbp_status->resp);
1661 }
1662 }
1663
1664 /* we have to reset the fetch agent if it's dead */
1665 if (sbp_status->dead) {
1666 if (sdev->path) {
1667 xpt_freeze_devq(sdev->path, 1);
1668 sdev->freeze ++;
1669 }
1670 reset_agent = 1;
1671 }
1672
1673 if (ocb == NULL)
1674 goto done;
1675
1676 switch(ntohl(ocb->orb[4]) & ORB_FMT_MSK){
1677 case ORB_FMT_NOP:
1678 break;
1679 case ORB_FMT_VED:
1680 break;
1681 case ORB_FMT_STD:
1682 switch(ocb->flags) {
1683 case OCB_ACT_MGM:
1684 orb_fun = ntohl(ocb->orb[4]) & ORB_FUN_MSK;
1685 reset_agent = 0;
1686 switch(orb_fun) {
1687 case ORB_FUN_LGI:
1688 fwdma_sync(&sdev->dma, BUS_DMASYNC_POSTREAD);
1689 login_res = sdev->login;
1690 login_res->len = ntohs(login_res->len);
1691 login_res->id = ntohs(login_res->id);
1692 login_res->cmd_hi = ntohs(login_res->cmd_hi);
1693 login_res->cmd_lo = ntohl(login_res->cmd_lo);
1694 if (status_valid) {
1695 SBP_DEBUG(0)
1696 sbp_show_sdev_info(sdev, 2);
1697 kprintf("login: len %d, ID %d, cmd %08x%08x, recon_hold %d\n", login_res->len, login_res->id, login_res->cmd_hi, login_res->cmd_lo, ntohs(login_res->recon_hold));
1698 END_DEBUG
1699 sbp_busy_timeout(sdev);
1700 } else {
1701 /* forgot logout? */
1702 sbp_show_sdev_info(sdev, 2);
1703 kprintf("login failed\n");
1704 sdev->status = SBP_DEV_RESET;
1705 }
1706 break;
1707 case ORB_FUN_RCN:
1708 login_res = sdev->login;
1709 if (status_valid) {
1710 SBP_DEBUG(0)
1711 sbp_show_sdev_info(sdev, 2);
1712 kprintf("reconnect: len %d, ID %d, cmd %08x%08x\n", login_res->len, login_res->id, login_res->cmd_hi, login_res->cmd_lo);
1713 END_DEBUG
1714 #if 1
1715 if (sdev->status == SBP_DEV_ATTACHED)
1716 sbp_scan_dev(sdev);
1717 else
1718 sbp_agent_reset(sdev);
1719 #else
1720 sdev->status = SBP_DEV_ATTACHED;
1721 sbp_mgm_orb(sdev, ORB_FUN_ATS, NULL);
1722 #endif
1723 } else {
1724 /* reconnection hold time exceed? */
1725 SBP_DEBUG(0)
1726 sbp_show_sdev_info(sdev, 2);
1727 kprintf("reconnect failed\n");
1728 END_DEBUG
1729 sbp_login(sdev);
1730 }
1731 break;
1732 case ORB_FUN_LGO:
1733 sdev->status = SBP_DEV_RESET;
1734 break;
1735 case ORB_FUN_RST:
1736 sbp_busy_timeout(sdev);
1737 break;
1738 case ORB_FUN_LUR:
1739 case ORB_FUN_ATA:
1740 case ORB_FUN_ATS:
1741 sbp_agent_reset(sdev);
1742 break;
1743 default:
1744 sbp_show_sdev_info(sdev, 2);
1745 kprintf("unknown function %d\n", orb_fun);
1746 break;
1747 }
1748 sbp_mgm_orb(sdev, ORB_FUN_RUNQUEUE, NULL);
1749 break;
1750 case OCB_ACT_CMD:
1751 sdev->timeout = 0;
1752 if(ocb->ccb != NULL){
1753 union ccb *ccb;
1754 /*
1755 u_int32_t *ld;
1756 ld = ocb->ccb->csio.data_ptr;
1757 if(ld != NULL && ocb->ccb->csio.dxfer_len != 0)
1758 kprintf("ptr %08x %08x %08x %08x\n", ld[0], ld[1], ld[2], ld[3]);
1759 else
1760 kprintf("ptr NULL\n");
1761 kprintf("len %d\n", sbp_status->len);
1762 */
1763 ccb = ocb->ccb;
1764 if(sbp_status->len > 1){
1765 sbp_scsi_status(sbp_status, ocb);
1766 }else{
1767 if(sbp_status->resp != ORB_RES_CMPL){
1768 ccb->ccb_h.status = CAM_REQ_CMP_ERR;
1769 }else{
1770 ccb->ccb_h.status = CAM_REQ_CMP;
1771 }
1772 }
1773 /* fix up inq data */
1774 if (ccb->csio.cdb_io.cdb_bytes[0] == INQUIRY)
1775 sbp_fix_inq_data(ocb);
1776 xpt_done(ccb);
1777 }
1778 break;
1779 default:
1780 break;
1781 }
1782 }
1783
1784 sbp_free_ocb(sdev, ocb);
1785 done:
1786 if (reset_agent)
1787 sbp_agent_reset(sdev);
1788
1789 done0:
1790 xfer->recv.pay_len = SBP_RECV_LEN;
1791 /* The received packet is usually small enough to be stored within
1792 * the buffer. In that case, the controller return ack_complete and
1793 * no respose is necessary.
1794 *
1795 * XXX fwohci.c and firewire.c should inform event_code such as
1796 * ack_complete or ack_pending to upper driver.
1797 */
1798 #if NEED_RESPONSE
1799 xfer->send.off = 0;
1800 sfp = (struct fw_pkt *)xfer->send.buf;
1801 sfp->mode.wres.dst = rfp->mode.wreqb.src;
1802 xfer->dst = sfp->mode.wres.dst;
1803 xfer->spd = min(sdev->target->fwdev->speed, max_speed);
1804 xfer->act.hand = sbp_loginres_callback;
1805 xfer->retry_req = fw_asybusy;
1806
1807 sfp->mode.wres.tlrt = rfp->mode.wreqb.tlrt;
1808 sfp->mode.wres.tcode = FWTCODE_WRES;
1809 sfp->mode.wres.rtcode = 0;
1810 sfp->mode.wres.pri = 0;
1811
1812 fw_asyreq(xfer->fc, -1, xfer);
1813 #else
1814 /* recycle */
1815 STAILQ_INSERT_TAIL(&sbp->fwb.xferlist, xfer, link);
1816 #endif
1817
1818 return;
1819
1820 }
1821
1822 static void
1823 sbp_recv(struct fw_xfer *xfer)
1824 {
1825 crit_enter();
1826 sbp_recv1(xfer);
1827 crit_exit();
1828 }
1829 /*
1830 * sbp_attach()
1831 */
1832 static int
1833 sbp_attach(device_t dev)
1834 {
1835 struct sbp_softc *sbp;
1836 struct cam_devq *devq;
1837 struct fw_xfer *xfer;
1838 int i, error;
1839
1840 SBP_DEBUG(0)
1841 kprintf("sbp_attach (cold=%d)\n", cold);
1842 END_DEBUG
1843
1844 #if 0
1845 if (cold)
1846 sbp_cold ++;
1847 #endif
1848 sbp = ((struct sbp_softc *)device_get_softc(dev));
1849 bzero(sbp, sizeof(struct sbp_softc));
1850 sbp->fd.dev = dev;
1851 sbp->fd.fc = device_get_ivars(dev);
1852
1853 if (max_speed < 0)
1854 max_speed = sbp->fd.fc->speed;
1855
1856 error = bus_dma_tag_create(/*parent*/sbp->fd.fc->dmat,
1857 /* XXX shoud be 4 for sane backend? */
1858 /*alignment*/1,
1859 /*boundary*/0,
1860 /*lowaddr*/BUS_SPACE_MAXADDR_32BIT,
1861 /*highaddr*/BUS_SPACE_MAXADDR,
1862 /*filter*/NULL, /*filterarg*/NULL,
1863 /*maxsize*/0x100000, /*nsegments*/SBP_IND_MAX,
1864 /*maxsegsz*/SBP_SEG_MAX,
1865 /*flags*/BUS_DMA_ALLOCNOW,
1866 #if defined(__FreeBSD__) && __FreeBSD_version >= 501102
1867 /*lockfunc*/busdma_lock_mutex,
1868 /*lockarg*/&Giant,
1869 #endif
1870 &sbp->dmat);
1871 if (error != 0) {
1872 kprintf("sbp_attach: Could not allocate DMA tag "
1873 "- error %d\n", error);
1874 return (ENOMEM);
1875 }
1876
1877 devq = cam_simq_alloc(/*maxopenings*/SBP_NUM_OCB);
1878 if (devq == NULL)
1879 return (ENXIO);
1880
1881 for( i = 0 ; i < SBP_NUM_TARGETS ; i++){
1882 sbp->targets[i].fwdev = NULL;
1883 sbp->targets[i].luns = NULL;
1884 }
1885
1886 sbp->sim = cam_sim_alloc(sbp_action, sbp_poll, "sbp", sbp,
1887 device_get_unit(dev),
1888 &sim_mplock,
1889 /*untagged*/ 1,
1890 /*tagged*/ SBP_QUEUE_LEN - 1,
1891 devq);
1892 cam_simq_release(devq);
1893 if (sbp->sim == NULL)
1894 return (ENXIO);
1895
1896 if (xpt_bus_register(sbp->sim, /*bus*/0) != CAM_SUCCESS)
1897 goto fail;
1898
1899 if (xpt_create_path(&sbp->path, xpt_periph, cam_sim_path(sbp->sim),
1900 CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD) != CAM_REQ_CMP) {
1901 xpt_bus_deregister(cam_sim_path(sbp->sim));
1902 goto fail;
1903 }
1904
1905 /* We reserve 16 bit space (4 bytes X 64 targets X 256 luns) */
1906 sbp->fwb.start = ((u_int64_t)SBP_BIND_HI << 32) | SBP_DEV2ADDR(0, 0);
1907 sbp->fwb.end = sbp->fwb.start + 0xffff;
1908 sbp->fwb.act_type = FWACT_XFER;
1909 /* pre-allocate xfer */
1910 STAILQ_INIT(&sbp->fwb.xferlist);
1911 for (i = 0; i < SBP_NUM_OCB/2; i ++) {
1912 xfer = fw_xfer_alloc_buf(M_SBP,
1913 /* send */0,
1914 /* recv */SBP_RECV_LEN);
1915 xfer->act.hand = sbp_recv;
1916 #if NEED_RESPONSE
1917 xfer->fc = sbp->fd.fc;
1918 #endif
1919 xfer->sc = (caddr_t)sbp;
1920 STAILQ_INSERT_TAIL(&sbp->fwb.xferlist, xfer, link);
1921 }
1922 fw_bindadd(sbp->fd.fc, &sbp->fwb);
1923
1924 sbp->fd.post_busreset = sbp_post_busreset;
1925 sbp->fd.post_explore = sbp_post_explore;
1926
1927 if (sbp->fd.fc->status != -1) {
1928 crit_enter();
1929 sbp_post_busreset((void *)sbp);
1930 sbp_post_explore((void *)sbp);
1931 crit_exit();
1932 }
1933 xpt_async(AC_BUS_RESET, sbp->path, /*arg*/ NULL);
1934
1935 return (0);
1936 fail:
1937 cam_sim_free(sbp->sim);
1938 return (ENXIO);
1939 }
1940
1941 static int
1942 sbp_logout_all(struct sbp_softc *sbp)
1943 {
1944 struct sbp_target *target;
1945 struct sbp_dev *sdev;
1946 int i, j;
1947
1948 SBP_DEBUG(0)
1949 kprintf("sbp_logout_all\n");
1950 END_DEBUG
1951 for (i = 0 ; i < SBP_NUM_TARGETS ; i ++) {
1952 target = &sbp->targets[i];
1953 if (target->luns == NULL)
1954 continue;
1955 for (j = 0; j < target->num_lun; j++) {
1956 sdev = target->luns[j];
1957 if (sdev == NULL)
1958 continue;
1959 callout_stop(&sdev->login_callout);
1960 if (sdev->status >= SBP_DEV_TOATTACH &&
1961 sdev->status <= SBP_DEV_ATTACHED)
1962 sbp_mgm_orb(sdev, ORB_FUN_LGO, NULL);
1963 }
1964 }
1965
1966 return 0;
1967 }
1968
1969 static int
1970 sbp_shutdown(device_t dev)
1971 {
1972 struct sbp_softc *sbp = ((struct sbp_softc *)device_get_softc(dev));
1973
1974 sbp_logout_all(sbp);
1975 return (0);
1976 }
1977
1978 static void
1979 sbp_free_sdev(struct sbp_dev *sdev)
1980 {
1981 int i;
1982
1983 if (sdev == NULL)
1984 return;
1985 for (i = 0; i < SBP_QUEUE_LEN; i++)
1986 bus_dmamap_destroy(sdev->target->sbp->dmat,
1987 sdev->ocb[i].dmamap);
1988 fwdma_free(sdev->target->sbp->fd.fc, &sdev->dma);
1989 kfree(sdev, M_SBP);
1990 }
1991
1992 static void
1993 sbp_free_target(struct sbp_target *target)
1994 {
1995 struct sbp_softc *sbp;
1996 struct fw_xfer *xfer, *next;
1997 int i;
1998
1999 if (target->luns == NULL)
2000 return;
2001 callout_stop(&target->mgm_ocb_timeout);
2002 sbp = target->sbp;
2003 for (i = 0; i < target->num_lun; i++)
2004 sbp_free_sdev(target->luns[i]);
2005
2006 for (xfer = STAILQ_FIRST(&target->xferlist);
2007 xfer != NULL; xfer = next) {
2008 next = STAILQ_NEXT(xfer, link);
2009 fw_xfer_free_buf(xfer);
2010 }
2011 STAILQ_INIT(&target->xferlist);
2012 kfree(target->luns, M_SBP);
2013 target->num_lun = 0;
2014 target->luns = NULL;
2015 target->fwdev = NULL;
2016 }
2017
2018 static int
2019 sbp_detach(device_t dev)
2020 {
2021 struct sbp_softc *sbp = ((struct sbp_softc *)device_get_softc(dev));
2022 struct firewire_comm *fc = sbp->fd.fc;
2023 struct fw_xfer *xfer, *next;
2024 int i;
2025
2026 SBP_DEBUG(0)
2027 kprintf("sbp_detach\n");
2028 END_DEBUG
2029
2030 for (i = 0; i < SBP_NUM_TARGETS; i ++)
2031 sbp_cam_detach_target(&sbp->targets[i]);
2032 xpt_async(AC_LOST_DEVICE, sbp->path, NULL);
2033 xpt_free_path(sbp->path);
2034 xpt_bus_deregister(cam_sim_path(sbp->sim));
2035 cam_sim_free(sbp->sim);
2036
2037 sbp_logout_all(sbp);
2038
2039 /* XXX wait for logout completion */
2040 tsleep(&i, FWPRI, "sbpdtc", hz/2);
2041
2042 for (i = 0 ; i < SBP_NUM_TARGETS ; i ++)
2043 sbp_free_target(&sbp->targets[i]);
2044
2045 for (xfer = STAILQ_FIRST(&sbp->fwb.xferlist);
2046 xfer != NULL; xfer = next) {
2047 next = STAILQ_NEXT(xfer, link);
2048 fw_xfer_free_buf(xfer);
2049 }
2050 STAILQ_INIT(&sbp->fwb.xferlist);
2051 fw_bindremove(fc, &sbp->fwb);
2052
2053 bus_dma_tag_destroy(sbp->dmat);
2054
2055 return (0);
2056 }
2057
2058 static void
2059 sbp_cam_detach_sdev(struct sbp_dev *sdev)
2060 {
2061 if (sdev == NULL)
2062 return;
2063 if (sdev->status == SBP_DEV_DEAD)
2064 return;
2065 if (sdev->status == SBP_DEV_RESET)
2066 return;
2067 if (sdev->path) {
2068 xpt_release_devq(sdev->path,
2069 sdev->freeze, TRUE);
2070 sdev->freeze = 0;
2071 xpt_async(AC_LOST_DEVICE, sdev->path, NULL);
2072 xpt_free_path(sdev->path);
2073 sdev->path = NULL;
2074 }
2075 sbp_abort_all_ocbs(sdev, CAM_DEV_NOT_THERE);
2076 }
2077
2078 static void
2079 sbp_cam_detach_target(struct sbp_target *target)
2080 {
2081 int i;
2082
2083 if (target->luns != NULL) {
2084 SBP_DEBUG(0)
2085 kprintf("sbp_detach_target %d\n", target->target_id);
2086 END_DEBUG
2087 callout_stop(&target->scan_callout);
2088 for (i = 0; i < target->num_lun; i++)
2089 sbp_cam_detach_sdev(target->luns[i]);
2090 }
2091 }
2092
2093 static void
2094 sbp_target_reset(struct sbp_dev *sdev, int method)
2095 {
2096 int i;
2097 struct sbp_target *target = sdev->target;
2098 struct sbp_dev *tsdev;
2099
2100 for (i = 0; i < target->num_lun; i++) {
2101 tsdev = target->luns[i];
2102 if (tsdev == NULL)
2103 continue;
2104 if (tsdev->status == SBP_DEV_DEAD)
2105 continue;
2106 if (tsdev->status == SBP_DEV_RESET)
2107 continue;
2108 xpt_freeze_devq(tsdev->path, 1);
2109 tsdev->freeze ++;
2110 sbp_abort_all_ocbs(tsdev, CAM_CMD_TIMEOUT);
2111 if (method == 2)
2112 tsdev->status = SBP_DEV_LOGIN;
2113 }
2114 switch(method) {
2115 case 1:
2116 kprintf("target reset\n");
2117 sbp_mgm_orb(sdev, ORB_FUN_RST, NULL);
2118 break;
2119 case 2:
2120 kprintf("reset start\n");
2121 sbp_reset_start(sdev);
2122 break;
2123 }
2124
2125 }
2126
2127 static void
2128 sbp_mgm_timeout(void *arg)
2129 {
2130 struct sbp_ocb *ocb = (struct sbp_ocb *)arg;
2131 struct sbp_dev *sdev = ocb->sdev;
2132 struct sbp_target *target = sdev->target;
2133
2134 sbp_show_sdev_info(sdev, 2);
2135 kprintf("request timeout(mgm orb:0x%08x) ... ",
2136 (u_int32_t)ocb->bus_addr);
2137 target->mgm_ocb_cur = NULL;
2138 sbp_free_ocb(sdev, ocb);
2139 #if 0
2140 /* XXX */
2141 kprintf("run next request\n");
2142 sbp_mgm_orb(sdev, ORB_FUN_RUNQUEUE, NULL);
2143 #endif
2144 #if 1
2145 kprintf("reset start\n");
2146 sbp_reset_start(sdev);
2147 #endif
2148 }
2149
2150 static void
2151 sbp_timeout(void *arg)
2152 {
2153 struct sbp_ocb *ocb = (struct sbp_ocb *)arg;
2154 struct sbp_dev *sdev = ocb->sdev;
2155
2156 sbp_show_sdev_info(sdev, 2);
2157 kprintf("request timeout(cmd orb:0x%08x) ... ",
2158 (u_int32_t)ocb->bus_addr);
2159
2160 sdev->timeout ++;
2161 switch(sdev->timeout) {
2162 case 1:
2163 kprintf("agent reset\n");
2164 xpt_freeze_devq(sdev->path, 1);
2165 sdev->freeze ++;
2166 sbp_abort_all_ocbs(sdev, CAM_CMD_TIMEOUT);
2167 sbp_agent_reset(sdev);
2168 break;
2169 case 2:
2170 case 3:
2171 sbp_target_reset(sdev, sdev->timeout - 1);
2172 break;
2173 #if 0
2174 default:
2175 /* XXX give up */
2176 sbp_cam_detach_target(target);
2177 if (target->luns != NULL)
2178 kfree(target->luns, M_SBP);
2179 target->num_lun = 0;
2180 target->luns = NULL;
2181 target->fwdev = NULL;
2182 #endif
2183 }
2184 }
2185
2186 static void
2187 sbp_action1(struct cam_sim *sim, union ccb *ccb)
2188 {
2189
2190 struct sbp_softc *sbp = (struct sbp_softc *)sim->softc;
2191 struct sbp_target *target = NULL;
2192 struct sbp_dev *sdev = NULL;
2193
2194 /* target:lun -> sdev mapping */
2195 if (sbp != NULL
2196 && ccb->ccb_h.target_id != CAM_TARGET_WILDCARD
2197 && ccb->ccb_h.target_id < SBP_NUM_TARGETS) {
2198 target = &sbp->targets[ccb->ccb_h.target_id];
2199 if (target->fwdev != NULL
2200 && ccb->ccb_h.target_lun != CAM_LUN_WILDCARD
2201 && ccb->ccb_h.target_lun < target->num_lun) {
2202 sdev = target->luns[ccb->ccb_h.target_lun];
2203 if (sdev != NULL && sdev->status != SBP_DEV_ATTACHED &&
2204 sdev->status != SBP_DEV_PROBE)
2205 sdev = NULL;
2206 }
2207 }
2208
2209 SBP_DEBUG(1)
2210 if (sdev == NULL)
2211 kprintf("invalid target %d lun %d\n",
2212 ccb->ccb_h.target_id, ccb->ccb_h.target_lun);
2213 END_DEBUG
2214
2215 switch (ccb->ccb_h.func_code) {
2216 case XPT_SCSI_IO:
2217 case XPT_RESET_DEV:
2218 case XPT_GET_TRAN_SETTINGS:
2219 case XPT_SET_TRAN_SETTINGS:
2220 case XPT_CALC_GEOMETRY:
2221 if (sdev == NULL) {
2222 SBP_DEBUG(1)
2223 kprintf("%s:%d:%d:func_code 0x%04x: "
2224 "Invalid target (target needed)\n",
2225 device_get_nameunit(sbp->fd.dev),
2226 ccb->ccb_h.target_id, ccb->ccb_h.target_lun,
2227 ccb->ccb_h.func_code);
2228 END_DEBUG
2229
2230 ccb->ccb_h.status = CAM_DEV_NOT_THERE;
2231 xpt_done(ccb);
2232 return;
2233 }
2234 break;
2235 case XPT_PATH_INQ:
2236 case XPT_NOOP:
2237 /* The opcodes sometimes aimed at a target (sc is valid),
2238 * sometimes aimed at the SIM (sc is invalid and target is
2239 * CAM_TARGET_WILDCARD)
2240 */
2241 if (sbp == NULL &&
2242 ccb->ccb_h.target_id != CAM_TARGET_WILDCARD) {
2243 SBP_DEBUG(0)
2244 kprintf("%s:%d:%d func_code 0x%04x: "
2245 "Invalid target (no wildcard)\n",
2246 device_get_nameunit(sbp->fd.dev),
2247 ccb->ccb_h.target_id, ccb->ccb_h.target_lun,
2248 ccb->ccb_h.func_code);
2249 END_DEBUG
2250 ccb->ccb_h.status = CAM_DEV_NOT_THERE;
2251 xpt_done(ccb);
2252 return;
2253 }
2254 break;
2255 default:
2256 /* XXX Hm, we should check the input parameters */
2257 break;
2258 }
2259
2260 switch (ccb->ccb_h.func_code) {
2261 case XPT_SCSI_IO:
2262 {
2263 struct ccb_scsiio *csio;
2264 struct sbp_ocb *ocb;
2265 int speed;
2266 void *cdb;
2267
2268 csio = &ccb->csio;
2269
2270 SBP_DEBUG(2)
2271 kprintf("%s:%d:%d XPT_SCSI_IO: "
2272 "cmd: %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x"
2273 ", flags: 0x%02x, "
2274 "%db cmd/%db data/%db sense\n",
2275 device_get_nameunit(sbp->fd.dev),
2276 ccb->ccb_h.target_id, ccb->ccb_h.target_lun,
2277 csio->cdb_io.cdb_bytes[0],
2278 csio->cdb_io.cdb_bytes[1],
2279 csio->cdb_io.cdb_bytes[2],
2280 csio->cdb_io.cdb_bytes[3],
2281 csio->cdb_io.cdb_bytes[4],
2282 csio->cdb_io.cdb_bytes[5],
2283 csio->cdb_io.cdb_bytes[6],
2284 csio->cdb_io.cdb_bytes[7],
2285 csio->cdb_io.cdb_bytes[8],
2286 csio->cdb_io.cdb_bytes[9],
2287 ccb->ccb_h.flags & CAM_DIR_MASK,
2288 csio->cdb_len, csio->dxfer_len,
2289 csio->sense_len);
2290 END_DEBUG
2291 if(sdev == NULL){
2292 ccb->ccb_h.status = CAM_DEV_NOT_THERE;
2293 xpt_done(ccb);
2294 return;
2295 }
2296 #if 0
2297 /* if we are in probe stage, pass only probe commands */
2298 if (sdev->status == SBP_DEV_PROBE) {
2299 char *name;
2300 name = xpt_path_periph(ccb->ccb_h.path)->periph_name;
2301 kprintf("probe stage, periph name: %s\n", name);
2302 if (strcmp(name, "probe") != 0) {
2303 ccb->ccb_h.status = CAM_REQUEUE_REQ;
2304 xpt_done(ccb);
2305 return;
2306 }
2307 }
2308 #endif
2309 if ((ocb = sbp_get_ocb(sdev)) == NULL) {
2310 ccb->ccb_h.status = CAM_REQUEUE_REQ;
2311 xpt_done(ccb);
2312 return;
2313 }
2314
2315 ocb->flags = OCB_ACT_CMD;
2316 ocb->sdev = sdev;
2317 ocb->ccb = ccb;
2318 ccb->ccb_h.ccb_sdev_ptr = sdev;
2319 ocb->orb[0] = htonl(1 << 31);
2320 ocb->orb[1] = 0;
2321 ocb->orb[2] = htonl(((sbp->fd.fc->nodeid | FWLOCALBUS )<< 16) );
2322 ocb->orb[3] = htonl(ocb->bus_addr + IND_PTR_OFFSET);
2323 speed = min(target->fwdev->speed, max_speed);
2324 ocb->orb[4] = htonl(ORB_NOTIFY | ORB_CMD_SPD(speed)
2325 | ORB_CMD_MAXP(speed + 7));
2326 if((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN){
2327 ocb->orb[4] |= htonl(ORB_CMD_IN);
2328 }
2329
2330 if (csio->ccb_h.flags & CAM_SCATTER_VALID)
2331 kprintf("sbp: CAM_SCATTER_VALID\n");
2332 if (csio->ccb_h.flags & CAM_DATA_PHYS)
2333 kprintf("sbp: CAM_DATA_PHYS\n");
2334
2335 if (csio->ccb_h.flags & CAM_CDB_POINTER)
2336 cdb = (void *)csio->cdb_io.cdb_ptr;
2337 else
2338 cdb = (void *)&csio->cdb_io.cdb_bytes;
2339 bcopy(cdb, (void *)&ocb->orb[5], csio->cdb_len);
2340 /*
2341 kprintf("ORB %08x %08x %08x %08x\n", ntohl(ocb->orb[0]), ntohl(ocb->orb[1]), ntohl(ocb->orb[2]), ntohl(ocb->orb[3]));
2342 kprintf("ORB %08x %08x %08x %08x\n", ntohl(ocb->orb[4]), ntohl(ocb->orb[5]), ntohl(ocb->orb[6]), ntohl(ocb->orb[7]));
2343 */
2344 if (ccb->csio.dxfer_len > 0) {
2345 int error;
2346
2347 crit_enter();
2348 error = bus_dmamap_load(/*dma tag*/sbp->dmat,
2349 /*dma map*/ocb->dmamap,
2350 ccb->csio.data_ptr,
2351 ccb->csio.dxfer_len,
2352 sbp_execute_ocb,
2353 ocb,
2354 /*flags*/0);
2355 crit_exit();
2356 if (error)
2357 kprintf("sbp: bus_dmamap_load error %d\n", error);
2358 } else
2359 sbp_execute_ocb(ocb, NULL, 0, 0);
2360 break;
2361 }
2362 case XPT_CALC_GEOMETRY:
2363 {
2364 struct ccb_calc_geometry *ccg;
2365 #if defined(__DragonFly__) || __FreeBSD_version < 501100
2366 u_int32_t size_mb;
2367 u_int32_t secs_per_cylinder;
2368 int extended = 1;
2369 #endif
2370
2371 ccg = &ccb->ccg;
2372 if (ccg->block_size == 0) {
2373 kprintf("sbp_action1: block_size is 0.\n");
2374 ccb->ccb_h.status = CAM_REQ_INVALID;
2375 xpt_done(ccb);
2376 break;
2377 }
2378 SBP_DEBUG(1)
2379 kprintf("%s:%d:%d:%d:XPT_CALC_GEOMETRY: Volume size = %ju\n",
2380 device_get_nameunit(sbp->fd.dev),
2381 cam_sim_path(sbp->sim),
2382 ccb->ccb_h.target_id, ccb->ccb_h.target_lun,
2383 (uintmax_t)ccg->volume_size);
2384 END_DEBUG
2385
2386 #if defined(__DragonFly__) || __FreeBSD_version < 501100
2387 size_mb = ccg->volume_size
2388 / ((1024L * 1024L) / ccg->block_size);
2389
2390 if (size_mb > 1024 && extended) {
2391 ccg->heads = 255;
2392 ccg->secs_per_track = 63;
2393 } else {
2394 ccg->heads = 64;
2395 ccg->secs_per_track = 32;
2396 }
2397 secs_per_cylinder = ccg->heads * ccg->secs_per_track;
2398 ccg->cylinders = ccg->volume_size / secs_per_cylinder;
2399 ccb->ccb_h.status = CAM_REQ_CMP;
2400 #else
2401 cam_calc_geometry(ccg, /*extended*/1);
2402 #endif
2403 xpt_done(ccb);
2404 break;
2405 }
2406 case XPT_RESET_BUS: /* Reset the specified SCSI bus */
2407 {
2408
2409 SBP_DEBUG(1)
2410 kprintf("%s:%d:XPT_RESET_BUS: \n",
2411 device_get_nameunit(sbp->fd.dev), cam_sim_path(sbp->sim));
2412 END_DEBUG
2413
2414 ccb->ccb_h.status = CAM_REQ_INVALID;
2415 xpt_done(ccb);
2416 break;
2417 }
2418 case XPT_PATH_INQ: /* Path routing inquiry */
2419 {
2420 struct ccb_pathinq *cpi = &ccb->cpi;
2421
2422 SBP_DEBUG(1)
2423 kprintf("%s:%d:%d XPT_PATH_INQ:.\n",
2424 device_get_nameunit(sbp->fd.dev),
2425 ccb->ccb_h.target_id, ccb->ccb_h.target_lun);
2426 END_DEBUG
2427 cpi->version_num = 1; /* XXX??? */
2428 cpi->hba_inquiry = PI_TAG_ABLE;
2429 cpi->target_sprt = 0;
2430 cpi->hba_misc = PIM_NOBUSRESET | PIM_NO_6_BYTE;
2431 cpi->hba_eng_cnt = 0;
2432 cpi->max_target = SBP_NUM_TARGETS - 1;
2433 cpi->max_lun = SBP_NUM_LUNS - 1;
2434 cpi->initiator_id = SBP_INITIATOR;
2435 cpi->bus_id = sim->bus_id;
2436 cpi->base_transfer_speed = 400 * 1000 / 8;
2437 strncpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN);
2438 strncpy(cpi->hba_vid, "SBP", HBA_IDLEN);
2439 strncpy(cpi->dev_name, sim->sim_name, DEV_IDLEN);
2440 cpi->unit_number = sim->unit_number;
2441 cpi->transport = XPORT_SPI; /* XX should have a FireWire */
2442 cpi->transport_version = 2;
2443 cpi->protocol = PROTO_SCSI;
2444 cpi->protocol_version = SCSI_REV_2;
2445
2446 cpi->ccb_h.status = CAM_REQ_CMP;
2447 xpt_done(ccb);
2448 break;
2449 }
2450 case XPT_GET_TRAN_SETTINGS:
2451 {
2452 struct ccb_trans_settings *cts = &ccb->cts;
2453 struct ccb_trans_settings_scsi *scsi =
2454 &cts->proto_specific.scsi;
2455 struct ccb_trans_settings_spi *spi =
2456 &cts->xport_specific.spi;
2457
2458 cts->protocol = PROTO_SCSI;
2459 cts->protocol_version = SCSI_REV_2;
2460 cts->transport = XPORT_SPI; /* should have a FireWire */
2461 cts->transport_version = 2;
2462 spi->valid = CTS_SPI_VALID_DISC;
2463 spi->flags = CTS_SPI_FLAGS_DISC_ENB;
2464 scsi->valid = CTS_SCSI_VALID_TQ;
2465 scsi->flags = CTS_SCSI_FLAGS_TAG_ENB;
2466 SBP_DEBUG(1)
2467 kprintf("%s:%d:%d XPT_GET_TRAN_SETTINGS:.\n",
2468 device_get_nameunit(sbp->fd.dev),
2469 ccb->ccb_h.target_id, ccb->ccb_h.target_lun);
2470 END_DEBUG
2471 cts->ccb_h.status = CAM_REQ_CMP;
2472 xpt_done(ccb);
2473 break;
2474 }
2475 case XPT_ABORT:
2476 ccb->ccb_h.status = CAM_UA_ABORT;
2477 xpt_done(ccb);
2478 break;
2479 case XPT_SET_TRAN_SETTINGS:
2480 /* XXX */
2481 default:
2482 ccb->ccb_h.status = CAM_REQ_INVALID;
2483 xpt_done(ccb);
2484 break;
2485 }
2486 return;
2487 }
2488
2489 static void
2490 sbp_action(struct cam_sim *sim, union ccb *ccb)
2491 {
2492 crit_enter();
2493 sbp_action1(sim, ccb);
2494 crit_exit();
2495 }
2496
2497 static void
2498 sbp_execute_ocb(void *arg, bus_dma_segment_t *segments, int seg, int error)
2499 {
2500 int i;
2501 struct sbp_ocb *ocb;
2502 struct sbp_ocb *prev;
2503 bus_dma_segment_t *s;
2504
2505 if (error)
2506 kprintf("sbp_execute_ocb: error=%d\n", error);
2507
2508 ocb = (struct sbp_ocb *)arg;
2509
2510 SBP_DEBUG(2)
2511 kprintf("sbp_execute_ocb: seg %d", seg);
2512 for (i = 0; i < seg; i++)
2513 #if defined(__DragonFly__) || __FreeBSD_version < 500000
2514 kprintf(", %x:%d", segments[i].ds_addr, segments[i].ds_len);
2515 #else
2516 kprintf(", %jx:%jd", (uintmax_t)segments[i].ds_addr,
2517 (uintmax_t)segments[i].ds_len);
2518 #endif
2519 kprintf("\n");
2520 END_DEBUG
2521
2522 if (seg == 1) {
2523 /* direct pointer */
2524 s = &segments[0];
2525 if (s->ds_len > SBP_SEG_MAX)
2526 panic("ds_len > SBP_SEG_MAX, fix busdma code");
2527 ocb->orb[3] = htonl(s->ds_addr);
2528 ocb->orb[4] |= htonl(s->ds_len);
2529 } else if(seg > 1) {
2530 /* page table */
2531 for (i = 0; i < seg; i++) {
2532 s = &segments[i];
2533 SBP_DEBUG(0)
2534 /* XXX LSI Logic "< 16 byte" bug might be hit */
2535 if (s->ds_len < 16)
2536 kprintf("sbp_execute_ocb: warning, "
2537 #if defined(__DragonFly__) || __FreeBSD_version < 500000
2538 "segment length(%d) is less than 16."
2539 #else
2540 "segment length(%zd) is less than 16."
2541 #endif
2542 "(seg=%d/%d)\n", s->ds_len, i+1, seg);
2543 END_DEBUG
2544 if (s->ds_len > SBP_SEG_MAX)
2545 panic("ds_len > SBP_SEG_MAX, fix busdma code");
2546 ocb->ind_ptr[i].hi = htonl(s->ds_len << 16);
2547 ocb->ind_ptr[i].lo = htonl(s->ds_addr);
2548 }
2549 ocb->orb[4] |= htonl(ORB_CMD_PTBL | seg);
2550 }
2551
2552 if (seg > 0)
2553 bus_dmamap_sync(ocb->sdev->target->sbp->dmat, ocb->dmamap,
2554 (ntohl(ocb->orb[4]) & ORB_CMD_IN) ?
2555 BUS_DMASYNC_PREREAD : BUS_DMASYNC_PREWRITE);
2556 prev = sbp_enqueue_ocb(ocb->sdev, ocb);
2557 fwdma_sync(&ocb->sdev->dma, BUS_DMASYNC_PREWRITE);
2558 if (prev == NULL || (ocb->sdev->flags & ORB_LINK_DEAD) != 0) {
2559 ocb->sdev->flags &= ~ORB_LINK_DEAD;
2560 sbp_orb_pointer(ocb->sdev, ocb);
2561 }
2562 }
2563
2564 static void
2565 sbp_poll(struct cam_sim *sim)
2566 {
2567 struct sbp_softc *sbp;
2568 struct firewire_comm *fc;
2569
2570 sbp = (struct sbp_softc *)sim->softc;
2571 fc = sbp->fd.fc;
2572
2573 fc->poll(fc, 0, -1);
2574
2575 return;
2576 }
2577
2578 static struct sbp_ocb *
2579 sbp_dequeue_ocb(struct sbp_dev *sdev, struct sbp_status *sbp_status)
2580 {
2581 struct sbp_ocb *ocb;
2582 struct sbp_ocb *next;
2583 int order = 0;
2584 int flags;
2585
2586 crit_enter();
2587
2588 SBP_DEBUG(1)
2589 sbp_show_sdev_info(sdev, 2);
2590 kprintf("%s: 0x%08x src %d\n",
2591 __func__, ntohl(sbp_status->orb_lo), sbp_status->src);
2592 END_DEBUG
2593 for (ocb = STAILQ_FIRST(&sdev->ocbs); ocb != NULL; ocb = next) {
2594 next = STAILQ_NEXT(ocb, ocb);
2595 flags = ocb->flags;
2596 if (OCB_MATCH(ocb, sbp_status)) {
2597 /* found */
2598 STAILQ_REMOVE(&sdev->ocbs, ocb, sbp_ocb, ocb);
2599 if (ocb->ccb != NULL)
2600 callout_stop(&ocb->ccb->ccb_h.timeout_ch);
2601 if (ntohl(ocb->orb[4]) & 0xffff) {
2602 bus_dmamap_sync(sdev->target->sbp->dmat,
2603 ocb->dmamap,
2604 (ntohl(ocb->orb[4]) & ORB_CMD_IN) ?
2605 BUS_DMASYNC_POSTREAD :
2606 BUS_DMASYNC_POSTWRITE);
2607 bus_dmamap_unload(sdev->target->sbp->dmat,
2608 ocb->dmamap);
2609 }
2610 if (sbp_status->src == SRC_NO_NEXT) {
2611 if (next != NULL)
2612 sbp_orb_pointer(sdev, next);
2613 else if (order > 0) {
2614 /*
2615 * Unordered execution
2616 * We need to send pointer for
2617 * next ORB
2618 */
2619 sdev->flags |= ORB_LINK_DEAD;
2620 }
2621 }
2622 break;
2623 } else
2624 order ++;
2625 }
2626 crit_exit();
2627 SBP_DEBUG(0)
2628 if (ocb && order > 0) {
2629 sbp_show_sdev_info(sdev, 2);
2630 kprintf("unordered execution order:%d\n", order);
2631 }
2632 END_DEBUG
2633 return (ocb);
2634 }
2635
2636 static struct sbp_ocb *
2637 sbp_enqueue_ocb(struct sbp_dev *sdev, struct sbp_ocb *ocb)
2638 {
2639 struct sbp_ocb *prev;
2640
2641 crit_enter();
2642
2643 SBP_DEBUG(1)
2644 sbp_show_sdev_info(sdev, 2);
2645 #if defined(__DragonFly__) || __FreeBSD_version < 500000
2646 kprintf("%s: 0x%08x\n", __func__, ocb->bus_addr);
2647 #else
2648 kprintf("%s: 0x%08jx\n", __func__, (uintmax_t)ocb->bus_addr);
2649 #endif
2650 END_DEBUG
2651 prev = STAILQ_LAST(&sdev->ocbs, sbp_ocb, ocb);
2652 STAILQ_INSERT_TAIL(&sdev->ocbs, ocb, ocb);
2653
2654 if (ocb->ccb != NULL)
2655 callout_reset(&ocb->ccb->ccb_h.timeout_ch,
2656 (ocb->ccb->ccb_h.timeout * hz) / 1000, sbp_timeout, ocb);
2657
2658 if (prev != NULL) {
2659 SBP_DEBUG(2)
2660 #if defined(__DragonFly__) || __FreeBSD_version < 500000
2661 kprintf("linking chain 0x%x -> 0x%x\n",
2662 prev->bus_addr, ocb->bus_addr);
2663 #else
2664 kprintf("linking chain 0x%jx -> 0x%jx\n",
2665 (uintmax_t)prev->bus_addr, (uintmax_t)ocb->bus_addr);
2666 #endif
2667 END_DEBUG
2668 prev->orb[1] = htonl(ocb->bus_addr);
2669 prev->orb[0] = 0;
2670 }
2671 crit_exit();
2672
2673 return prev;
2674 }
2675
2676 static struct sbp_ocb *
2677 sbp_get_ocb(struct sbp_dev *sdev)
2678 {
2679 struct sbp_ocb *ocb;
2680
2681 crit_enter();
2682 ocb = STAILQ_FIRST(&sdev->free_ocbs);
2683 if (ocb == NULL) {
2684 kprintf("ocb shortage!!!\n");
2685 return NULL;
2686 }
2687 STAILQ_REMOVE_HEAD(&sdev->free_ocbs, ocb);
2688 crit_exit();
2689 ocb->ccb = NULL;
2690 return (ocb);
2691 }
2692
2693 static void
2694 sbp_free_ocb(struct sbp_dev *sdev, struct sbp_ocb *ocb)
2695 {
2696 ocb->flags = 0;
2697 ocb->ccb = NULL;
2698 STAILQ_INSERT_TAIL(&sdev->free_ocbs, ocb, ocb);
2699 }
2700
2701 static void
2702 sbp_abort_ocb(struct sbp_ocb *ocb, int status)
2703 {
2704 struct sbp_dev *sdev;
2705
2706 sdev = ocb->sdev;
2707 SBP_DEBUG(0)
2708 sbp_show_sdev_info(sdev, 2);
2709 #if defined(__DragonFly__) || __FreeBSD_version < 500000
2710 kprintf("sbp_abort_ocb 0x%x\n", ocb->bus_addr);
2711 #else
2712 kprintf("sbp_abort_ocb 0x%jx\n", (uintmax_t)ocb->bus_addr);
2713 #endif
2714 END_DEBUG
2715 SBP_DEBUG(1)
2716 if (ocb->ccb != NULL)
2717 sbp_print_scsi_cmd(ocb);
2718 END_DEBUG
2719 if (ntohl(ocb->orb[4]) & 0xffff) {
2720 bus_dmamap_sync(sdev->target->sbp->dmat, ocb->dmamap,
2721 (ntohl(ocb->orb[4]) & ORB_CMD_IN) ?
2722 BUS_DMASYNC_POSTREAD : BUS_DMASYNC_POSTWRITE);
2723 bus_dmamap_unload(sdev->target->sbp->dmat, ocb->dmamap);
2724 }
2725 if (ocb->ccb != NULL) {
2726 callout_stop(&ocb->ccb->ccb_h.timeout_ch);
2727 ocb->ccb->ccb_h.status = status;
2728 xpt_done(ocb->ccb);
2729 }
2730 sbp_free_ocb(sdev, ocb);
2731 }
2732
2733 static void
2734 sbp_abort_all_ocbs(struct sbp_dev *sdev, int status)
2735 {
2736 struct sbp_ocb *ocb, *next;
2737 STAILQ_HEAD(, sbp_ocb) temp;
2738
2739 crit_enter();
2740 bcopy(&sdev->ocbs, &temp, sizeof(temp));
2741 STAILQ_INIT(&sdev->ocbs);
2742 for (ocb = STAILQ_FIRST(&temp); ocb != NULL; ocb = next) {
2743 next = STAILQ_NEXT(ocb, ocb);
2744 sbp_abort_ocb(ocb, status);
2745 }
2746 crit_exit();
2747 }
2748
2749 static devclass_t sbp_devclass;
2750
2751 /*
2752 * Because sbp is a static device that always exists under any attached
2753 * firewire device, and not scanned by the firewire device, we need an
2754 * identify function to install the device. For our sanity we want
2755 * the sbp device to have the same unit number as the fireweire device.
2756 */
2757
2758 static device_method_t sbp_methods[] = {
2759 /* device interface */
2760 DEVMETHOD(device_identify, bus_generic_identify_sameunit),
2761 DEVMETHOD(device_probe, sbp_probe),
2762 DEVMETHOD(device_attach, sbp_attach),
2763 DEVMETHOD(device_detach, sbp_detach),
2764 DEVMETHOD(device_shutdown, sbp_shutdown),
2765
2766 { 0, 0 }
2767 };
2768
2769 static driver_t sbp_driver = {
2770 "sbp",
2771 sbp_methods,
2772 sizeof(struct sbp_softc),
2773 };
2774
2775 DECLARE_DUMMY_MODULE(sbp);
2776 DRIVER_MODULE(sbp, firewire, sbp_driver, sbp_devclass, 0, 0);
2777 MODULE_VERSION(sbp, 1);
2778 MODULE_DEPEND(sbp, firewire, 1, 1, 1);
2779 MODULE_DEPEND(sbp, cam, 1, 1, 1);
DragonFly BSD