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: stable/10/sys/dev/firewire/sbp.c 315831 2017-03-23 07:56:13Z avg $
35 *
36 */
37
38 #include <sys/param.h>
39 #include <sys/systm.h>
40 #include <sys/module.h>
41 #include <sys/bus.h>
42 #include <sys/kernel.h>
43 #include <sys/sysctl.h>
44 #include <machine/bus.h>
45 #include <sys/malloc.h>
46 #if defined(__FreeBSD__) && __FreeBSD_version >= 501102
47 #include <sys/lock.h>
48 #include <sys/mutex.h>
49 #endif
50
51 #if defined(__DragonFly__) || __FreeBSD_version < 500106
52 #include <sys/devicestat.h> /* for struct devstat */
53 #endif
54
55 #ifdef __DragonFly__
56 #include <bus/cam/cam.h>
57 #include <bus/cam/cam_ccb.h>
58 #include <bus/cam/cam_sim.h>
59 #include <bus/cam/cam_xpt_sim.h>
60 #include <bus/cam/cam_debug.h>
61 #include <bus/cam/cam_periph.h>
62 #include <bus/cam/scsi/scsi_all.h>
63
64 #include <bus/firewire/firewire.h>
65 #include <bus/firewire/firewirereg.h>
66 #include <bus/firewire/fwdma.h>
67 #include <bus/firewire/iec13213.h>
68 #include "sbp.h"
69 #else
70 #include <cam/cam.h>
71 #include <cam/cam_ccb.h>
72 #include <cam/cam_sim.h>
73 #include <cam/cam_xpt_sim.h>
74 #include <cam/cam_debug.h>
75 #include <cam/cam_periph.h>
76 #include <cam/scsi/scsi_all.h>
77
78 #include <dev/firewire/firewire.h>
79 #include <dev/firewire/firewirereg.h>
80 #include <dev/firewire/fwdma.h>
81 #include <dev/firewire/iec13213.h>
82 #include <dev/firewire/sbp.h>
83 #endif
84
85 #define ccb_sdev_ptr spriv_ptr0
86 #define ccb_sbp_ptr spriv_ptr1
87
88 #define SBP_NUM_TARGETS 8 /* MAX 64 */
89 /*
90 * Scan_bus doesn't work for more than 8 LUNs
91 * because of CAM_SCSI2_MAXLUN in cam_xpt.c
92 */
93 #define SBP_NUM_LUNS 64
94 #define SBP_MAXPHYS MIN(MAXPHYS, (512*1024) /* 512KB */)
95 #define SBP_DMA_SIZE PAGE_SIZE
96 #define SBP_LOGIN_SIZE sizeof(struct sbp_login_res)
97 #define SBP_QUEUE_LEN ((SBP_DMA_SIZE - SBP_LOGIN_SIZE) / sizeof(struct sbp_ocb))
98 #define SBP_NUM_OCB (SBP_QUEUE_LEN * SBP_NUM_TARGETS)
99
100 /*
101 * STATUS FIFO addressing
102 * bit
103 * -----------------------
104 * 0- 1( 2): 0 (alignment)
105 * 2- 7( 6): target
106 * 8-15( 8): lun
107 * 16-31( 8): reserved
108 * 32-47(16): SBP_BIND_HI
109 * 48-64(16): bus_id, node_id
110 */
111 #define SBP_BIND_HI 0x1
112 #define SBP_DEV2ADDR(t, l) \
113 (((u_int64_t)SBP_BIND_HI << 32) \
114 | (((l) & 0xff) << 8) \
115 | (((t) & 0x3f) << 2))
116 #define SBP_ADDR2TRG(a) (((a) >> 2) & 0x3f)
117 #define SBP_ADDR2LUN(a) (((a) >> 8) & 0xff)
118 #define SBP_INITIATOR 7
119
120 static char *orb_fun_name[] = {
121 ORB_FUN_NAMES
122 };
123
124 static int debug = 0;
125 static int auto_login = 1;
126 static int max_speed = -1;
127 static int sbp_cold = 1;
128 static int ex_login = 1;
129 static int login_delay = 1000; /* msec */
130 static int scan_delay = 500; /* msec */
131 static int use_doorbell = 0;
132 static int sbp_tags = 0;
133
134 SYSCTL_DECL(_hw_firewire);
135 static SYSCTL_NODE(_hw_firewire, OID_AUTO, sbp, CTLFLAG_RD, 0,
136 "SBP-II Subsystem");
137 SYSCTL_INT(_debug, OID_AUTO, sbp_debug, CTLFLAG_RW, &debug, 0,
138 "SBP debug flag");
139 SYSCTL_INT(_hw_firewire_sbp, OID_AUTO, auto_login, CTLFLAG_RW, &auto_login, 0,
140 "SBP perform login automatically");
141 SYSCTL_INT(_hw_firewire_sbp, OID_AUTO, max_speed, CTLFLAG_RW, &max_speed, 0,
142 "SBP transfer max speed");
143 SYSCTL_INT(_hw_firewire_sbp, OID_AUTO, exclusive_login, CTLFLAG_RW,
144 &ex_login, 0, "SBP enable exclusive login");
145 SYSCTL_INT(_hw_firewire_sbp, OID_AUTO, login_delay, CTLFLAG_RW,
146 &login_delay, 0, "SBP login delay in msec");
147 SYSCTL_INT(_hw_firewire_sbp, OID_AUTO, scan_delay, CTLFLAG_RW,
148 &scan_delay, 0, "SBP scan delay in msec");
149 SYSCTL_INT(_hw_firewire_sbp, OID_AUTO, use_doorbell, CTLFLAG_RW,
150 &use_doorbell, 0, "SBP use doorbell request");
151 SYSCTL_INT(_hw_firewire_sbp, OID_AUTO, tags, CTLFLAG_RW, &sbp_tags, 0,
152 "SBP tagged queuing support");
153
154 TUNABLE_INT("hw.firewire.sbp.auto_login", &auto_login);
155 TUNABLE_INT("hw.firewire.sbp.max_speed", &max_speed);
156 TUNABLE_INT("hw.firewire.sbp.exclusive_login", &ex_login);
157 TUNABLE_INT("hw.firewire.sbp.login_delay", &login_delay);
158 TUNABLE_INT("hw.firewire.sbp.scan_delay", &scan_delay);
159 TUNABLE_INT("hw.firewire.sbp.use_doorbell", &use_doorbell);
160 TUNABLE_INT("hw.firewire.sbp.tags", &sbp_tags);
161
162 #define NEED_RESPONSE 0
163
164 #define SBP_SEG_MAX rounddown(0xffff, PAGE_SIZE)
165 #ifdef __sparc64__ /* iommu */
166 #define SBP_IND_MAX howmany(SBP_MAXPHYS, SBP_SEG_MAX)
167 #else
168 #define SBP_IND_MAX howmany(SBP_MAXPHYS, PAGE_SIZE)
169 #endif
170 struct sbp_ocb {
171 STAILQ_ENTRY(sbp_ocb) ocb;
172 union ccb *ccb;
173 bus_addr_t bus_addr;
174 uint32_t orb[8];
175 #define IND_PTR_OFFSET (8*sizeof(uint32_t))
176 struct ind_ptr ind_ptr[SBP_IND_MAX];
177 struct sbp_dev *sdev;
178 int flags; /* XXX should be removed */
179 bus_dmamap_t dmamap;
180 struct callout timer;
181 };
182
183 #define OCB_ACT_MGM 0
184 #define OCB_ACT_CMD 1
185 #define OCB_MATCH(o,s) ((o)->bus_addr == ntohl((s)->orb_lo))
186
187 struct sbp_dev{
188 #define SBP_DEV_RESET 0 /* accept login */
189 #define SBP_DEV_LOGIN 1 /* to login */
190 #if 0
191 #define SBP_DEV_RECONN 2 /* to reconnect */
192 #endif
193 #define SBP_DEV_TOATTACH 3 /* to attach */
194 #define SBP_DEV_PROBE 4 /* scan lun */
195 #define SBP_DEV_ATTACHED 5 /* in operation */
196 #define SBP_DEV_DEAD 6 /* unavailable unit */
197 #define SBP_DEV_RETRY 7 /* unavailable unit */
198 uint8_t status:4,
199 timeout:4;
200 uint8_t type;
201 uint16_t lun_id;
202 uint16_t freeze;
203 #define ORB_LINK_DEAD (1 << 0)
204 #define VALID_LUN (1 << 1)
205 #define ORB_POINTER_ACTIVE (1 << 2)
206 #define ORB_POINTER_NEED (1 << 3)
207 #define ORB_DOORBELL_ACTIVE (1 << 4)
208 #define ORB_DOORBELL_NEED (1 << 5)
209 #define ORB_SHORTAGE (1 << 6)
210 uint16_t flags;
211 struct cam_path *path;
212 struct sbp_target *target;
213 struct fwdma_alloc dma;
214 struct sbp_login_res *login;
215 struct callout login_callout;
216 struct sbp_ocb *ocb;
217 STAILQ_HEAD(, sbp_ocb) ocbs;
218 STAILQ_HEAD(, sbp_ocb) free_ocbs;
219 struct sbp_ocb *last_ocb;
220 char vendor[32];
221 char product[32];
222 char revision[10];
223 char bustgtlun[32];
224 };
225
226 struct sbp_target {
227 int target_id;
228 int num_lun;
229 struct sbp_dev **luns;
230 struct sbp_softc *sbp;
231 struct fw_device *fwdev;
232 uint32_t mgm_hi, mgm_lo;
233 struct sbp_ocb *mgm_ocb_cur;
234 STAILQ_HEAD(, sbp_ocb) mgm_ocb_queue;
235 struct callout mgm_ocb_timeout;
236 struct callout scan_callout;
237 STAILQ_HEAD(, fw_xfer) xferlist;
238 int n_xfer;
239 };
240
241 struct sbp_softc {
242 struct firewire_dev_comm fd;
243 struct cam_sim *sim;
244 struct cam_path *path;
245 struct sbp_target targets[SBP_NUM_TARGETS];
246 struct fw_bind fwb;
247 bus_dma_tag_t dmat;
248 struct timeval last_busreset;
249 #define SIMQ_FREEZED 1
250 int flags;
251 struct mtx mtx;
252 };
253 #define SBP_LOCK(sbp) mtx_lock(&(sbp)->mtx)
254 #define SBP_UNLOCK(sbp) mtx_unlock(&(sbp)->mtx)
255 #define SBP_LOCK_ASSERT(sbp) mtx_assert(&(sbp)->mtx, MA_OWNED)
256
257 static void sbp_post_explore (void *);
258 static void sbp_recv (struct fw_xfer *);
259 static void sbp_mgm_callback (struct fw_xfer *);
260 #if 0
261 static void sbp_cmd_callback (struct fw_xfer *);
262 #endif
263 static void sbp_orb_pointer (struct sbp_dev *, struct sbp_ocb *);
264 static void sbp_doorbell(struct sbp_dev *);
265 static void sbp_execute_ocb (void *, bus_dma_segment_t *, int, int);
266 static void sbp_free_ocb (struct sbp_dev *, struct sbp_ocb *);
267 static void sbp_abort_ocb (struct sbp_ocb *, int);
268 static void sbp_abort_all_ocbs (struct sbp_dev *, int);
269 static struct fw_xfer * sbp_write_cmd (struct sbp_dev *, int, int);
270 static struct sbp_ocb * sbp_get_ocb (struct sbp_dev *);
271 static struct sbp_ocb * sbp_enqueue_ocb (struct sbp_dev *, struct sbp_ocb *);
272 static struct sbp_ocb * sbp_dequeue_ocb (struct sbp_dev *, struct sbp_status *);
273 static void sbp_cam_detach_sdev(struct sbp_dev *);
274 static void sbp_free_sdev(struct sbp_dev *);
275 static void sbp_cam_detach_target (struct sbp_target *);
276 static void sbp_free_target (struct sbp_target *);
277 static void sbp_mgm_timeout (void *arg);
278 static void sbp_timeout (void *arg);
279 static void sbp_mgm_orb (struct sbp_dev *, int, struct sbp_ocb *);
280
281 static MALLOC_DEFINE(M_SBP, "sbp", "SBP-II/FireWire");
282
283 /* cam related functions */
284 static void sbp_action(struct cam_sim *sim, union ccb *ccb);
285 static void sbp_poll(struct cam_sim *sim);
286 static void sbp_cam_scan_lun(struct cam_periph *, union ccb *);
287 static void sbp_cam_scan_target(void *arg);
288
289 static char *orb_status0[] = {
290 /* 0 */ "No additional information to report",
291 /* 1 */ "Request type not supported",
292 /* 2 */ "Speed not supported",
293 /* 3 */ "Page size not supported",
294 /* 4 */ "Access denied",
295 /* 5 */ "Logical unit not supported",
296 /* 6 */ "Maximum payload too small",
297 /* 7 */ "Reserved for future standardization",
298 /* 8 */ "Resources unavailable",
299 /* 9 */ "Function rejected",
300 /* A */ "Login ID not recognized",
301 /* B */ "Dummy ORB completed",
302 /* C */ "Request aborted",
303 /* FF */ "Unspecified error"
304 #define MAX_ORB_STATUS0 0xd
305 };
306
307 static char *orb_status1_object[] = {
308 /* 0 */ "Operation request block (ORB)",
309 /* 1 */ "Data buffer",
310 /* 2 */ "Page table",
311 /* 3 */ "Unable to specify"
312 };
313
314 static char *orb_status1_serial_bus_error[] = {
315 /* 0 */ "Missing acknowledge",
316 /* 1 */ "Reserved; not to be used",
317 /* 2 */ "Time-out error",
318 /* 3 */ "Reserved; not to be used",
319 /* 4 */ "Busy retry limit exceeded(X)",
320 /* 5 */ "Busy retry limit exceeded(A)",
321 /* 6 */ "Busy retry limit exceeded(B)",
322 /* 7 */ "Reserved for future standardization",
323 /* 8 */ "Reserved for future standardization",
324 /* 9 */ "Reserved for future standardization",
325 /* A */ "Reserved for future standardization",
326 /* B */ "Tardy retry limit exceeded",
327 /* C */ "Conflict error",
328 /* D */ "Data error",
329 /* E */ "Type error",
330 /* F */ "Address error"
331 };
332
333 static void
sbp_identify(driver_t * driver,device_t parent)334 sbp_identify(driver_t *driver, device_t parent)
335 {
336 SBP_DEBUG(0)
337 printf("sbp_identify\n");
338 END_DEBUG
339
340 if (device_find_child(parent, "sbp", -1) == NULL)
341 BUS_ADD_CHILD(parent, 0, "sbp", -1);
342 }
343
344 /*
345 * sbp_probe()
346 */
347 static int
sbp_probe(device_t dev)348 sbp_probe(device_t dev)
349 {
350
351 SBP_DEBUG(0)
352 printf("sbp_probe\n");
353 END_DEBUG
354
355 device_set_desc(dev, "SBP-2/SCSI over FireWire");
356
357 #if 0
358 if (bootverbose)
359 debug = bootverbose;
360 #endif
361
362 return (0);
363 }
364
365 /*
366 * Display device characteristics on the console
367 */
368 static void
sbp_show_sdev_info(struct sbp_dev * sdev)369 sbp_show_sdev_info(struct sbp_dev *sdev)
370 {
371 struct fw_device *fwdev;
372
373 fwdev = sdev->target->fwdev;
374 device_printf(sdev->target->sbp->fd.dev,
375 "%s: %s: ordered:%d type:%d EUI:%08x%08x node:%d "
376 "speed:%d maxrec:%d\n",
377 __func__,
378 sdev->bustgtlun,
379 (sdev->type & 0x40) >> 6,
380 (sdev->type & 0x1f),
381 fwdev->eui.hi,
382 fwdev->eui.lo,
383 fwdev->dst,
384 fwdev->speed,
385 fwdev->maxrec);
386
387 device_printf(sdev->target->sbp->fd.dev,
388 "%s: %s '%s' '%s' '%s'\n",
389 __func__,
390 sdev->bustgtlun,
391 sdev->vendor,
392 sdev->product,
393 sdev->revision);
394 }
395
396 static struct {
397 int bus;
398 int target;
399 struct fw_eui64 eui;
400 } wired[] = {
401 /* Bus Target EUI64 */
402 #if 0
403 {0, 2, {0x00018ea0, 0x01fd0154}}, /* Logitec HDD */
404 {0, 0, {0x00018ea6, 0x00100682}}, /* Logitec DVD */
405 {0, 1, {0x00d03200, 0xa412006a}}, /* Yano HDD */
406 #endif
407 {-1, -1, {0,0}}
408 };
409
410 static int
sbp_new_target(struct sbp_softc * sbp,struct fw_device * fwdev)411 sbp_new_target(struct sbp_softc *sbp, struct fw_device *fwdev)
412 {
413 int bus, i, target=-1;
414 char w[SBP_NUM_TARGETS];
415
416 bzero(w, sizeof(w));
417 bus = device_get_unit(sbp->fd.dev);
418
419 /* XXX wired-down configuration should be gotten from
420 tunable or device hint */
421 for (i = 0; wired[i].bus >= 0; i ++) {
422 if (wired[i].bus == bus) {
423 w[wired[i].target] = 1;
424 if (wired[i].eui.hi == fwdev->eui.hi &&
425 wired[i].eui.lo == fwdev->eui.lo)
426 target = wired[i].target;
427 }
428 }
429 if (target >= 0) {
430 if(target < SBP_NUM_TARGETS &&
431 sbp->targets[target].fwdev == NULL)
432 return(target);
433 device_printf(sbp->fd.dev,
434 "target %d is not free for %08x:%08x\n",
435 target, fwdev->eui.hi, fwdev->eui.lo);
436 target = -1;
437 }
438 /* non-wired target */
439 for (i = 0; i < SBP_NUM_TARGETS; i ++)
440 if (sbp->targets[i].fwdev == NULL && w[i] == 0) {
441 target = i;
442 break;
443 }
444
445 return target;
446 }
447
448 static void
sbp_alloc_lun(struct sbp_target * target)449 sbp_alloc_lun(struct sbp_target *target)
450 {
451 struct crom_context cc;
452 struct csrreg *reg;
453 struct sbp_dev *sdev, **newluns;
454 struct sbp_softc *sbp;
455 int maxlun, lun, i;
456
457 sbp = target->sbp;
458 crom_init_context(&cc, target->fwdev->csrrom);
459 /* XXX shoud parse appropriate unit directories only */
460 maxlun = -1;
461 while (cc.depth >= 0) {
462 reg = crom_search_key(&cc, CROM_LUN);
463 if (reg == NULL)
464 break;
465 lun = reg->val & 0xffff;
466 SBP_DEBUG(0)
467 printf("target %d lun %d found\n", target->target_id, lun);
468 END_DEBUG
469 if (maxlun < lun)
470 maxlun = lun;
471 crom_next(&cc);
472 }
473 if (maxlun < 0)
474 device_printf(target->sbp->fd.dev, "%d no LUN found\n",
475 target->target_id);
476
477 maxlun ++;
478 if (maxlun >= SBP_NUM_LUNS)
479 maxlun = SBP_NUM_LUNS;
480
481 /* Invalidiate stale devices */
482 for (lun = 0; lun < target->num_lun; lun ++) {
483 sdev = target->luns[lun];
484 if (sdev == NULL)
485 continue;
486 sdev->flags &= ~VALID_LUN;
487 if (lun >= maxlun) {
488 /* lost device */
489 sbp_cam_detach_sdev(sdev);
490 sbp_free_sdev(sdev);
491 target->luns[lun] = NULL;
492 }
493 }
494
495 /* Reallocate */
496 if (maxlun != target->num_lun) {
497 newluns = (struct sbp_dev **) realloc(target->luns,
498 sizeof(struct sbp_dev *) * maxlun,
499 M_SBP, M_NOWAIT | M_ZERO);
500
501 if (newluns == NULL) {
502 printf("%s: realloc failed\n", __func__);
503 newluns = target->luns;
504 maxlun = target->num_lun;
505 }
506
507 /*
508 * We must zero the extended region for the case
509 * realloc() doesn't allocate new buffer.
510 */
511 if (maxlun > target->num_lun)
512 bzero(&newluns[target->num_lun],
513 sizeof(struct sbp_dev *) *
514 (maxlun - target->num_lun));
515
516 target->luns = newluns;
517 target->num_lun = maxlun;
518 }
519
520 crom_init_context(&cc, target->fwdev->csrrom);
521 while (cc.depth >= 0) {
522 int new = 0;
523
524 reg = crom_search_key(&cc, CROM_LUN);
525 if (reg == NULL)
526 break;
527 lun = reg->val & 0xffff;
528 if (lun >= SBP_NUM_LUNS) {
529 printf("too large lun %d\n", lun);
530 goto next;
531 }
532
533 sdev = target->luns[lun];
534 if (sdev == NULL) {
535 sdev = malloc(sizeof(struct sbp_dev),
536 M_SBP, M_NOWAIT | M_ZERO);
537 if (sdev == NULL) {
538 printf("%s: malloc failed\n", __func__);
539 goto next;
540 }
541 target->luns[lun] = sdev;
542 sdev->lun_id = lun;
543 sdev->target = target;
544 STAILQ_INIT(&sdev->ocbs);
545 callout_init_mtx(&sdev->login_callout, &sbp->mtx, 0);
546 sdev->status = SBP_DEV_RESET;
547 new = 1;
548 snprintf(sdev->bustgtlun, 32, "%s:%d:%d",
549 device_get_nameunit(sdev->target->sbp->fd.dev),
550 sdev->target->target_id,
551 sdev->lun_id);
552 }
553 sdev->flags |= VALID_LUN;
554 sdev->type = (reg->val & 0xff0000) >> 16;
555
556 if (new == 0)
557 goto next;
558
559 fwdma_malloc(sbp->fd.fc,
560 /* alignment */ sizeof(uint32_t),
561 SBP_DMA_SIZE, &sdev->dma, BUS_DMA_NOWAIT |
562 BUS_DMA_COHERENT);
563 if (sdev->dma.v_addr == NULL) {
564 printf("%s: dma space allocation failed\n",
565 __func__);
566 free(sdev, M_SBP);
567 target->luns[lun] = NULL;
568 goto next;
569 }
570 sdev->login = (struct sbp_login_res *) sdev->dma.v_addr;
571 sdev->ocb = (struct sbp_ocb *)
572 ((char *)sdev->dma.v_addr + SBP_LOGIN_SIZE);
573 bzero((char *)sdev->ocb,
574 sizeof (struct sbp_ocb) * SBP_QUEUE_LEN);
575
576 STAILQ_INIT(&sdev->free_ocbs);
577 for (i = 0; i < SBP_QUEUE_LEN; i++) {
578 struct sbp_ocb *ocb;
579 ocb = &sdev->ocb[i];
580 ocb->bus_addr = sdev->dma.bus_addr
581 + SBP_LOGIN_SIZE
582 + sizeof(struct sbp_ocb) * i
583 + offsetof(struct sbp_ocb, orb[0]);
584 if (bus_dmamap_create(sbp->dmat, 0, &ocb->dmamap)) {
585 printf("sbp_attach: cannot create dmamap\n");
586 /* XXX */
587 goto next;
588 }
589 callout_init_mtx(&ocb->timer, &sbp->mtx, 0);
590 SBP_LOCK(sbp);
591 sbp_free_ocb(sdev, ocb);
592 SBP_UNLOCK(sbp);
593 }
594 next:
595 crom_next(&cc);
596 }
597
598 for (lun = 0; lun < target->num_lun; lun ++) {
599 sdev = target->luns[lun];
600 if (sdev != NULL && (sdev->flags & VALID_LUN) == 0) {
601 sbp_cam_detach_sdev(sdev);
602 sbp_free_sdev(sdev);
603 target->luns[lun] = NULL;
604 }
605 }
606 }
607
608 static struct sbp_target *
sbp_alloc_target(struct sbp_softc * sbp,struct fw_device * fwdev)609 sbp_alloc_target(struct sbp_softc *sbp, struct fw_device *fwdev)
610 {
611 int i;
612 struct sbp_target *target;
613 struct crom_context cc;
614 struct csrreg *reg;
615
616 SBP_DEBUG(1)
617 printf("sbp_alloc_target\n");
618 END_DEBUG
619 i = sbp_new_target(sbp, fwdev);
620 if (i < 0) {
621 device_printf(sbp->fd.dev, "increase SBP_NUM_TARGETS!\n");
622 return NULL;
623 }
624 /* new target */
625 target = &sbp->targets[i];
626 target->sbp = sbp;
627 target->fwdev = fwdev;
628 target->target_id = i;
629 /* XXX we may want to reload mgm port after each bus reset */
630 /* XXX there might be multiple management agents */
631 crom_init_context(&cc, target->fwdev->csrrom);
632 reg = crom_search_key(&cc, CROM_MGM);
633 if (reg == NULL || reg->val == 0) {
634 printf("NULL management address\n");
635 target->fwdev = NULL;
636 return NULL;
637 }
638 target->mgm_hi = 0xffff;
639 target->mgm_lo = 0xf0000000 | (reg->val << 2);
640 target->mgm_ocb_cur = NULL;
641 SBP_DEBUG(1)
642 printf("target:%d mgm_port: %x\n", i, target->mgm_lo);
643 END_DEBUG
644 STAILQ_INIT(&target->xferlist);
645 target->n_xfer = 0;
646 STAILQ_INIT(&target->mgm_ocb_queue);
647 callout_init_mtx(&target->mgm_ocb_timeout, &sbp->mtx, 0);
648 callout_init_mtx(&target->scan_callout, &sbp->mtx, 0);
649
650 target->luns = NULL;
651 target->num_lun = 0;
652 return target;
653 }
654
655 static void
sbp_probe_lun(struct sbp_dev * sdev)656 sbp_probe_lun(struct sbp_dev *sdev)
657 {
658 struct fw_device *fwdev;
659 struct crom_context c, *cc = &c;
660 struct csrreg *reg;
661
662 bzero(sdev->vendor, sizeof(sdev->vendor));
663 bzero(sdev->product, sizeof(sdev->product));
664
665 fwdev = sdev->target->fwdev;
666 crom_init_context(cc, fwdev->csrrom);
667 /* get vendor string */
668 crom_search_key(cc, CSRKEY_VENDOR);
669 crom_next(cc);
670 crom_parse_text(cc, sdev->vendor, sizeof(sdev->vendor));
671 /* skip to the unit directory for SBP-2 */
672 while ((reg = crom_search_key(cc, CSRKEY_VER)) != NULL) {
673 if (reg->val == CSRVAL_T10SBP2)
674 break;
675 crom_next(cc);
676 }
677 /* get firmware revision */
678 reg = crom_search_key(cc, CSRKEY_FIRM_VER);
679 if (reg != NULL)
680 snprintf(sdev->revision, sizeof(sdev->revision),
681 "%06x", reg->val);
682 /* get product string */
683 crom_search_key(cc, CSRKEY_MODEL);
684 crom_next(cc);
685 crom_parse_text(cc, sdev->product, sizeof(sdev->product));
686 }
687
688 static void
sbp_login_callout(void * arg)689 sbp_login_callout(void *arg)
690 {
691 struct sbp_dev *sdev = (struct sbp_dev *)arg;
692 SBP_LOCK_ASSERT(sdev->target->sbp);
693 sbp_mgm_orb(sdev, ORB_FUN_LGI, NULL);
694 }
695
696 static void
sbp_login(struct sbp_dev * sdev)697 sbp_login(struct sbp_dev *sdev)
698 {
699 struct timeval delta;
700 struct timeval t;
701 int ticks = 0;
702
703 microtime(&delta);
704 timevalsub(&delta, &sdev->target->sbp->last_busreset);
705 t.tv_sec = login_delay / 1000;
706 t.tv_usec = (login_delay % 1000) * 1000;
707 timevalsub(&t, &delta);
708 if (t.tv_sec >= 0 && t.tv_usec > 0)
709 ticks = (t.tv_sec * 1000 + t.tv_usec / 1000) * hz / 1000;
710 SBP_DEBUG(0)
711 printf("%s: sec = %jd usec = %ld ticks = %d\n", __func__,
712 (intmax_t)t.tv_sec, t.tv_usec, ticks);
713 END_DEBUG
714 callout_reset(&sdev->login_callout, ticks,
715 sbp_login_callout, (void *)(sdev));
716 }
717
718 #define SBP_FWDEV_ALIVE(fwdev) (((fwdev)->status == FWDEVATTACHED) \
719 && crom_has_specver((fwdev)->csrrom, CSRVAL_ANSIT10, CSRVAL_T10SBP2))
720
721 static void
sbp_probe_target(struct sbp_target * target)722 sbp_probe_target(struct sbp_target *target)
723 {
724 struct sbp_softc *sbp = target->sbp;
725 struct sbp_dev *sdev;
726 int i, alive;
727
728 alive = SBP_FWDEV_ALIVE(target->fwdev);
729 SBP_DEBUG(1)
730 device_printf(sbp->fd.dev, "%s %d%salive\n",
731 __func__, target->target_id,
732 (!alive) ? " not " : "");
733 END_DEBUG
734
735 sbp_alloc_lun(target);
736
737 /* XXX untimeout mgm_ocb and dequeue */
738 for (i=0; i < target->num_lun; i++) {
739 sdev = target->luns[i];
740 if (sdev == NULL)
741 continue;
742 if (alive && (sdev->status != SBP_DEV_DEAD)) {
743 if (sdev->path != NULL) {
744 xpt_freeze_devq(sdev->path, 1);
745 sdev->freeze ++;
746 }
747 sbp_probe_lun(sdev);
748 sbp_show_sdev_info(sdev);
749
750 SBP_LOCK(sbp);
751 sbp_abort_all_ocbs(sdev, CAM_SCSI_BUS_RESET);
752 SBP_UNLOCK(sbp);
753 switch (sdev->status) {
754 case SBP_DEV_RESET:
755 /* new or revived target */
756 if (auto_login)
757 sbp_login(sdev);
758 break;
759 case SBP_DEV_TOATTACH:
760 case SBP_DEV_PROBE:
761 case SBP_DEV_ATTACHED:
762 case SBP_DEV_RETRY:
763 default:
764 sbp_mgm_orb(sdev, ORB_FUN_RCN, NULL);
765 break;
766 }
767 } else {
768 switch (sdev->status) {
769 case SBP_DEV_ATTACHED:
770 SBP_DEBUG(0)
771 /* the device has gone */
772 device_printf(sbp->fd.dev, "%s: lost target\n",
773 __func__);
774 END_DEBUG
775 if (sdev->path) {
776 xpt_freeze_devq(sdev->path, 1);
777 sdev->freeze ++;
778 }
779 sdev->status = SBP_DEV_RETRY;
780 sbp_cam_detach_sdev(sdev);
781 sbp_free_sdev(sdev);
782 target->luns[i] = NULL;
783 break;
784 case SBP_DEV_PROBE:
785 case SBP_DEV_TOATTACH:
786 sdev->status = SBP_DEV_RESET;
787 break;
788 case SBP_DEV_RETRY:
789 case SBP_DEV_RESET:
790 case SBP_DEV_DEAD:
791 break;
792 }
793 }
794 }
795 }
796
797 static void
sbp_post_busreset(void * arg)798 sbp_post_busreset(void *arg)
799 {
800 struct sbp_softc *sbp;
801
802 sbp = (struct sbp_softc *)arg;
803 SBP_DEBUG(0)
804 printf("sbp_post_busreset\n");
805 END_DEBUG
806 SBP_LOCK(sbp);
807 if ((sbp->flags & SIMQ_FREEZED) == 0) {
808 xpt_freeze_simq(sbp->sim, /*count*/1);
809 sbp->flags |= SIMQ_FREEZED;
810 }
811 microtime(&sbp->last_busreset);
812 SBP_UNLOCK(sbp);
813 }
814
815 static void
sbp_post_explore(void * arg)816 sbp_post_explore(void *arg)
817 {
818 struct sbp_softc *sbp = (struct sbp_softc *)arg;
819 struct sbp_target *target;
820 struct fw_device *fwdev;
821 int i, alive;
822
823 SBP_DEBUG(0)
824 printf("sbp_post_explore (sbp_cold=%d)\n", sbp_cold);
825 END_DEBUG
826 /* We need physical access */
827 if (!firewire_phydma_enable)
828 return;
829
830 if (sbp_cold > 0)
831 sbp_cold --;
832
833 SBP_LOCK(sbp);
834
835 /* Garbage Collection */
836 for(i = 0 ; i < SBP_NUM_TARGETS ; i ++){
837 target = &sbp->targets[i];
838 if (target->fwdev == NULL)
839 continue;
840
841 STAILQ_FOREACH(fwdev, &sbp->fd.fc->devices, link)
842 if (target->fwdev == fwdev)
843 break;
844 if (fwdev == NULL) {
845 /* device has removed in lower driver */
846 sbp_cam_detach_target(target);
847 sbp_free_target(target);
848 }
849 }
850
851 /* traverse device list */
852 STAILQ_FOREACH(fwdev, &sbp->fd.fc->devices, link) {
853 SBP_DEBUG(0)
854 device_printf(sbp->fd.dev,"%s:: EUI:%08x%08x %s attached, state=%d\n",
855 __func__, fwdev->eui.hi, fwdev->eui.lo,
856 (fwdev->status != FWDEVATTACHED) ? "not" : "",
857 fwdev->status);
858 END_DEBUG
859 alive = SBP_FWDEV_ALIVE(fwdev);
860 for(i = 0 ; i < SBP_NUM_TARGETS ; i ++){
861 target = &sbp->targets[i];
862 if(target->fwdev == fwdev ) {
863 /* known target */
864 break;
865 }
866 }
867 if(i == SBP_NUM_TARGETS){
868 if (alive) {
869 /* new target */
870 target = sbp_alloc_target(sbp, fwdev);
871 if (target == NULL)
872 continue;
873 } else {
874 continue;
875 }
876 }
877
878 /*
879 * It is safe to drop the lock here as the target is already
880 * reserved, so there should be no contenders for it.
881 * And the target is not yet exposed, so there should not be
882 * any other accesses to it.
883 * Finally, the list being iterated is protected somewhere else.
884 */
885 SBP_UNLOCK(sbp);
886 sbp_probe_target(target);
887 SBP_LOCK(sbp);
888 if (target->num_lun == 0)
889 sbp_free_target(target);
890 }
891 if ((sbp->flags & SIMQ_FREEZED) != 0) {
892 xpt_release_simq(sbp->sim, /*run queue*/TRUE);
893 sbp->flags &= ~SIMQ_FREEZED;
894 }
895 SBP_UNLOCK(sbp);
896 }
897
898 #if NEED_RESPONSE
899 static void
sbp_loginres_callback(struct fw_xfer * xfer)900 sbp_loginres_callback(struct fw_xfer *xfer){
901 struct sbp_dev *sdev;
902 sdev = (struct sbp_dev *)xfer->sc;
903 SBP_DEBUG(1)
904 device_printf(sdev->target->sbp->fd.dev,"%s\n", __func__);
905 END_DEBUG
906 /* recycle */
907 SBP_LOCK(sdev->target->sbp);
908 STAILQ_INSERT_TAIL(&sdev->target->sbp->fwb.xferlist, xfer, link);
909 SBP_UNLOCK(sdev->target->sbp);
910 return;
911 }
912 #endif
913
914 static __inline void
sbp_xfer_free(struct fw_xfer * xfer)915 sbp_xfer_free(struct fw_xfer *xfer)
916 {
917 struct sbp_dev *sdev;
918
919 sdev = (struct sbp_dev *)xfer->sc;
920 fw_xfer_unload(xfer);
921 SBP_LOCK_ASSERT(sdev->target->sbp);
922 STAILQ_INSERT_TAIL(&sdev->target->xferlist, xfer, link);
923 }
924
925 static void
sbp_reset_start_callback(struct fw_xfer * xfer)926 sbp_reset_start_callback(struct fw_xfer *xfer)
927 {
928 struct sbp_dev *tsdev, *sdev = (struct sbp_dev *)xfer->sc;
929 struct sbp_target *target = sdev->target;
930 int i;
931
932 if (xfer->resp != 0) {
933 device_printf(sdev->target->sbp->fd.dev,
934 "%s: %s failed: resp=%d\n", __func__, sdev->bustgtlun, xfer->resp);
935 }
936
937 SBP_LOCK(target->sbp);
938 for (i = 0; i < target->num_lun; i++) {
939 tsdev = target->luns[i];
940 if (tsdev != NULL && tsdev->status == SBP_DEV_LOGIN)
941 sbp_login(tsdev);
942 }
943 SBP_UNLOCK(target->sbp);
944 }
945
946 static void
sbp_reset_start(struct sbp_dev * sdev)947 sbp_reset_start(struct sbp_dev *sdev)
948 {
949 struct fw_xfer *xfer;
950 struct fw_pkt *fp;
951
952 SBP_DEBUG(0)
953 device_printf(sdev->target->sbp->fd.dev,
954 "%s:%s\n", __func__,sdev->bustgtlun);
955 END_DEBUG
956
957 xfer = sbp_write_cmd(sdev, FWTCODE_WREQQ, 0);
958 xfer->hand = sbp_reset_start_callback;
959 fp = &xfer->send.hdr;
960 fp->mode.wreqq.dest_hi = 0xffff;
961 fp->mode.wreqq.dest_lo = 0xf0000000 | RESET_START;
962 fp->mode.wreqq.data = htonl(0xf);
963 fw_asyreq(xfer->fc, -1, xfer);
964 }
965
966 static void
sbp_mgm_callback(struct fw_xfer * xfer)967 sbp_mgm_callback(struct fw_xfer *xfer)
968 {
969 struct sbp_dev *sdev;
970 int resp;
971
972 sdev = (struct sbp_dev *)xfer->sc;
973
974 SBP_DEBUG(1)
975 device_printf(sdev->target->sbp->fd.dev,
976 "%s:%s\n", __func__, sdev->bustgtlun);
977 END_DEBUG
978 resp = xfer->resp;
979 SBP_LOCK(sdev->target->sbp);
980 sbp_xfer_free(xfer);
981 SBP_UNLOCK(sdev->target->sbp);
982 }
983
984 static struct sbp_dev *
sbp_next_dev(struct sbp_target * target,int lun)985 sbp_next_dev(struct sbp_target *target, int lun)
986 {
987 struct sbp_dev **sdevp;
988 int i;
989
990 for (i = lun, sdevp = &target->luns[lun]; i < target->num_lun;
991 i++, sdevp++)
992 if (*sdevp != NULL && (*sdevp)->status == SBP_DEV_PROBE)
993 return(*sdevp);
994 return(NULL);
995 }
996
997 #define SCAN_PRI 1
998 static void
sbp_cam_scan_lun(struct cam_periph * periph,union ccb * ccb)999 sbp_cam_scan_lun(struct cam_periph *periph, union ccb *ccb)
1000 {
1001 struct sbp_softc *sbp;
1002 struct sbp_target *target;
1003 struct sbp_dev *sdev;
1004
1005 sdev = (struct sbp_dev *) ccb->ccb_h.ccb_sdev_ptr;
1006 target = sdev->target;
1007 sbp = target->sbp;
1008 SBP_LOCK(sbp);
1009 SBP_DEBUG(0)
1010 device_printf(sbp->fd.dev,
1011 "%s:%s\n", __func__, sdev->bustgtlun);
1012 END_DEBUG
1013 if ((ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP) {
1014 sdev->status = SBP_DEV_ATTACHED;
1015 } else {
1016 device_printf(sbp->fd.dev,
1017 "%s:%s failed\n", __func__, sdev->bustgtlun);
1018 }
1019 sdev = sbp_next_dev(target, sdev->lun_id + 1);
1020 if (sdev == NULL) {
1021 SBP_UNLOCK(sbp);
1022 free(ccb, M_SBP);
1023 return;
1024 }
1025 /* reuse ccb */
1026 xpt_setup_ccb(&ccb->ccb_h, sdev->path, SCAN_PRI);
1027 ccb->ccb_h.ccb_sdev_ptr = sdev;
1028 ccb->ccb_h.flags |= CAM_DEV_QFREEZE;
1029 SBP_UNLOCK(sbp);
1030
1031 xpt_action(ccb);
1032 xpt_release_devq(sdev->path, sdev->freeze, TRUE);
1033 sdev->freeze = 1;
1034 }
1035
1036 static void
sbp_cam_scan_target(void * arg)1037 sbp_cam_scan_target(void *arg)
1038 {
1039 struct sbp_target *target = (struct sbp_target *)arg;
1040 struct sbp_dev *sdev;
1041 union ccb *ccb;
1042
1043 SBP_LOCK_ASSERT(target->sbp);
1044 sdev = sbp_next_dev(target, 0);
1045 if (sdev == NULL) {
1046 printf("sbp_cam_scan_target: nothing to do for target%d\n",
1047 target->target_id);
1048 return;
1049 }
1050 SBP_DEBUG(0)
1051 device_printf(sdev->target->sbp->fd.dev,
1052 "%s:%s\n", __func__, sdev->bustgtlun);
1053 END_DEBUG
1054 ccb = malloc(sizeof(union ccb), M_SBP, M_NOWAIT | M_ZERO);
1055 if (ccb == NULL) {
1056 printf("sbp_cam_scan_target: malloc failed\n");
1057 return;
1058 }
1059 SBP_UNLOCK(target->sbp);
1060
1061 xpt_setup_ccb(&ccb->ccb_h, sdev->path, SCAN_PRI);
1062 ccb->ccb_h.func_code = XPT_SCAN_LUN;
1063 ccb->ccb_h.cbfcnp = sbp_cam_scan_lun;
1064 ccb->ccb_h.flags |= CAM_DEV_QFREEZE;
1065 ccb->crcn.flags = CAM_FLAG_NONE;
1066 ccb->ccb_h.ccb_sdev_ptr = sdev;
1067
1068 /* The scan is in progress now. */
1069 xpt_action(ccb);
1070
1071 SBP_LOCK(target->sbp);
1072 xpt_release_devq(sdev->path, sdev->freeze, TRUE);
1073 sdev->freeze = 1;
1074 }
1075
1076 static __inline void
sbp_scan_dev(struct sbp_dev * sdev)1077 sbp_scan_dev(struct sbp_dev *sdev)
1078 {
1079 sdev->status = SBP_DEV_PROBE;
1080 callout_reset_sbt(&sdev->target->scan_callout, SBT_1MS * scan_delay, 0,
1081 sbp_cam_scan_target, (void *)sdev->target, 0);
1082 }
1083
1084 static void
sbp_do_attach(struct fw_xfer * xfer)1085 sbp_do_attach(struct fw_xfer *xfer)
1086 {
1087 struct sbp_dev *sdev;
1088 struct sbp_target *target;
1089 struct sbp_softc *sbp;
1090
1091 sdev = (struct sbp_dev *)xfer->sc;
1092 target = sdev->target;
1093 sbp = target->sbp;
1094 SBP_LOCK(sbp);
1095 SBP_DEBUG(0)
1096 device_printf(sdev->target->sbp->fd.dev,
1097 "%s:%s\n", __func__, sdev->bustgtlun);
1098 END_DEBUG
1099 sbp_xfer_free(xfer);
1100
1101 if (sdev->path == NULL)
1102 xpt_create_path(&sdev->path, NULL,
1103 cam_sim_path(target->sbp->sim),
1104 target->target_id, sdev->lun_id);
1105
1106 /*
1107 * Let CAM scan the bus if we are in the boot process.
1108 * XXX xpt_scan_bus cannot detect LUN larger than 0
1109 * if LUN 0 doesn't exist.
1110 */
1111 if (sbp_cold > 0) {
1112 sdev->status = SBP_DEV_ATTACHED;
1113 SBP_UNLOCK(sbp);
1114 return;
1115 }
1116
1117 sbp_scan_dev(sdev);
1118 SBP_UNLOCK(sbp);
1119 }
1120
1121 static void
sbp_agent_reset_callback(struct fw_xfer * xfer)1122 sbp_agent_reset_callback(struct fw_xfer *xfer)
1123 {
1124 struct sbp_dev *sdev;
1125
1126 sdev = (struct sbp_dev *)xfer->sc;
1127 SBP_DEBUG(1)
1128 device_printf(sdev->target->sbp->fd.dev,
1129 "%s:%s\n", __func__, sdev->bustgtlun);
1130 END_DEBUG
1131 if (xfer->resp != 0) {
1132 device_printf(sdev->target->sbp->fd.dev,
1133 "%s:%s resp=%d\n", __func__, sdev->bustgtlun, xfer->resp);
1134 }
1135
1136 SBP_LOCK(sdev->target->sbp);
1137 sbp_xfer_free(xfer);
1138 if (sdev->path) {
1139 xpt_release_devq(sdev->path, sdev->freeze, TRUE);
1140 sdev->freeze = 0;
1141 }
1142 SBP_UNLOCK(sdev->target->sbp);
1143 }
1144
1145 static void
sbp_agent_reset(struct sbp_dev * sdev)1146 sbp_agent_reset(struct sbp_dev *sdev)
1147 {
1148 struct fw_xfer *xfer;
1149 struct fw_pkt *fp;
1150
1151 SBP_LOCK_ASSERT(sdev->target->sbp);
1152 SBP_DEBUG(0)
1153 device_printf(sdev->target->sbp->fd.dev,
1154 "%s:%s\n", __func__, sdev->bustgtlun);
1155 END_DEBUG
1156 xfer = sbp_write_cmd(sdev, FWTCODE_WREQQ, 0x04);
1157 if (xfer == NULL)
1158 return;
1159 if (sdev->status == SBP_DEV_ATTACHED || sdev->status == SBP_DEV_PROBE)
1160 xfer->hand = sbp_agent_reset_callback;
1161 else
1162 xfer->hand = sbp_do_attach;
1163 fp = &xfer->send.hdr;
1164 fp->mode.wreqq.data = htonl(0xf);
1165 fw_asyreq(xfer->fc, -1, xfer);
1166 sbp_abort_all_ocbs(sdev, CAM_BDR_SENT);
1167 }
1168
1169 static void
sbp_busy_timeout_callback(struct fw_xfer * xfer)1170 sbp_busy_timeout_callback(struct fw_xfer *xfer)
1171 {
1172 struct sbp_dev *sdev;
1173
1174 sdev = (struct sbp_dev *)xfer->sc;
1175 SBP_DEBUG(1)
1176 device_printf(sdev->target->sbp->fd.dev,
1177 "%s:%s\n", __func__, sdev->bustgtlun);
1178 END_DEBUG
1179 SBP_LOCK(sdev->target->sbp);
1180 sbp_xfer_free(xfer);
1181 sbp_agent_reset(sdev);
1182 SBP_UNLOCK(sdev->target->sbp);
1183 }
1184
1185 static void
sbp_busy_timeout(struct sbp_dev * sdev)1186 sbp_busy_timeout(struct sbp_dev *sdev)
1187 {
1188 struct fw_pkt *fp;
1189 struct fw_xfer *xfer;
1190 SBP_DEBUG(0)
1191 device_printf(sdev->target->sbp->fd.dev,
1192 "%s:%s\n", __func__, sdev->bustgtlun);
1193 END_DEBUG
1194 xfer = sbp_write_cmd(sdev, FWTCODE_WREQQ, 0);
1195
1196 xfer->hand = sbp_busy_timeout_callback;
1197 fp = &xfer->send.hdr;
1198 fp->mode.wreqq.dest_hi = 0xffff;
1199 fp->mode.wreqq.dest_lo = 0xf0000000 | BUSY_TIMEOUT;
1200 fp->mode.wreqq.data = htonl((1 << (13+12)) | 0xf);
1201 fw_asyreq(xfer->fc, -1, xfer);
1202 }
1203
1204 static void
sbp_orb_pointer_callback(struct fw_xfer * xfer)1205 sbp_orb_pointer_callback(struct fw_xfer *xfer)
1206 {
1207 struct sbp_dev *sdev;
1208 sdev = (struct sbp_dev *)xfer->sc;
1209
1210 SBP_DEBUG(2)
1211 device_printf(sdev->target->sbp->fd.dev,
1212 "%s:%s\n", __func__, sdev->bustgtlun);
1213 END_DEBUG
1214 if (xfer->resp != 0) {
1215 /* XXX */
1216 printf("%s: xfer->resp = %d\n", __func__, xfer->resp);
1217 }
1218 SBP_LOCK(sdev->target->sbp);
1219 sbp_xfer_free(xfer);
1220
1221 sdev->flags &= ~ORB_POINTER_ACTIVE;
1222
1223 if ((sdev->flags & ORB_POINTER_NEED) != 0) {
1224 struct sbp_ocb *ocb;
1225
1226 sdev->flags &= ~ORB_POINTER_NEED;
1227 ocb = STAILQ_FIRST(&sdev->ocbs);
1228 if (ocb != NULL)
1229 sbp_orb_pointer(sdev, ocb);
1230 }
1231 SBP_UNLOCK(sdev->target->sbp);
1232 return;
1233 }
1234
1235 static void
sbp_orb_pointer(struct sbp_dev * sdev,struct sbp_ocb * ocb)1236 sbp_orb_pointer(struct sbp_dev *sdev, struct sbp_ocb *ocb)
1237 {
1238 struct fw_xfer *xfer;
1239 struct fw_pkt *fp;
1240 SBP_DEBUG(1)
1241 device_printf(sdev->target->sbp->fd.dev,
1242 "%s:%s 0x%08x\n",
1243 __func__, sdev->bustgtlun,
1244 (uint32_t)ocb->bus_addr);
1245 END_DEBUG
1246
1247 SBP_LOCK_ASSERT(sdev->target->sbp);
1248
1249 if ((sdev->flags & ORB_POINTER_ACTIVE) != 0) {
1250 SBP_DEBUG(0)
1251 printf("%s: orb pointer active\n", __func__);
1252 END_DEBUG
1253 sdev->flags |= ORB_POINTER_NEED;
1254 return;
1255 }
1256
1257 sdev->flags |= ORB_POINTER_ACTIVE;
1258 xfer = sbp_write_cmd(sdev, FWTCODE_WREQB, 0x08);
1259 if (xfer == NULL)
1260 return;
1261 xfer->hand = sbp_orb_pointer_callback;
1262
1263 fp = &xfer->send.hdr;
1264 fp->mode.wreqb.len = 8;
1265 fp->mode.wreqb.extcode = 0;
1266 xfer->send.payload[0] =
1267 htonl(((sdev->target->sbp->fd.fc->nodeid | FWLOCALBUS )<< 16));
1268 xfer->send.payload[1] = htonl((uint32_t)ocb->bus_addr);
1269
1270 if (fw_asyreq(xfer->fc, -1, xfer) != 0) {
1271 sbp_xfer_free(xfer);
1272 ocb->ccb->ccb_h.status = CAM_REQ_INVALID;
1273 xpt_done(ocb->ccb);
1274 }
1275 }
1276
1277 static void
sbp_doorbell_callback(struct fw_xfer * xfer)1278 sbp_doorbell_callback(struct fw_xfer *xfer)
1279 {
1280 struct sbp_dev *sdev;
1281 sdev = (struct sbp_dev *)xfer->sc;
1282
1283 SBP_DEBUG(1)
1284 device_printf(sdev->target->sbp->fd.dev,
1285 "%s:%s\n", __func__, sdev->bustgtlun);
1286 END_DEBUG
1287 if (xfer->resp != 0) {
1288 /* XXX */
1289 device_printf(sdev->target->sbp->fd.dev,
1290 "%s: xfer->resp = %d\n", __func__, xfer->resp);
1291 }
1292 SBP_LOCK(sdev->target->sbp);
1293 sbp_xfer_free(xfer);
1294 sdev->flags &= ~ORB_DOORBELL_ACTIVE;
1295 if ((sdev->flags & ORB_DOORBELL_NEED) != 0) {
1296 sdev->flags &= ~ORB_DOORBELL_NEED;
1297 sbp_doorbell(sdev);
1298 }
1299 SBP_UNLOCK(sdev->target->sbp);
1300 }
1301
1302 static void
sbp_doorbell(struct sbp_dev * sdev)1303 sbp_doorbell(struct sbp_dev *sdev)
1304 {
1305 struct fw_xfer *xfer;
1306 struct fw_pkt *fp;
1307 SBP_DEBUG(1)
1308 device_printf(sdev->target->sbp->fd.dev,
1309 "%s:%s\n", __func__, sdev->bustgtlun);
1310 END_DEBUG
1311
1312 if ((sdev->flags & ORB_DOORBELL_ACTIVE) != 0) {
1313 sdev->flags |= ORB_DOORBELL_NEED;
1314 return;
1315 }
1316 sdev->flags |= ORB_DOORBELL_ACTIVE;
1317 xfer = sbp_write_cmd(sdev, FWTCODE_WREQQ, 0x10);
1318 if (xfer == NULL)
1319 return;
1320 xfer->hand = sbp_doorbell_callback;
1321 fp = &xfer->send.hdr;
1322 fp->mode.wreqq.data = htonl(0xf);
1323 fw_asyreq(xfer->fc, -1, xfer);
1324 }
1325
1326 static struct fw_xfer *
sbp_write_cmd(struct sbp_dev * sdev,int tcode,int offset)1327 sbp_write_cmd(struct sbp_dev *sdev, int tcode, int offset)
1328 {
1329 struct fw_xfer *xfer;
1330 struct fw_pkt *fp;
1331 struct sbp_target *target;
1332 int new = 0;
1333
1334 SBP_LOCK_ASSERT(sdev->target->sbp);
1335
1336 target = sdev->target;
1337 xfer = STAILQ_FIRST(&target->xferlist);
1338 if (xfer == NULL) {
1339 if (target->n_xfer > 5 /* XXX */) {
1340 printf("sbp: no more xfer for this target\n");
1341 return(NULL);
1342 }
1343 xfer = fw_xfer_alloc_buf(M_SBP, 8, 0);
1344 if(xfer == NULL){
1345 printf("sbp: fw_xfer_alloc_buf failed\n");
1346 return NULL;
1347 }
1348 target->n_xfer ++;
1349 if (debug)
1350 printf("sbp: alloc %d xfer\n", target->n_xfer);
1351 new = 1;
1352 } else {
1353 STAILQ_REMOVE_HEAD(&target->xferlist, link);
1354 }
1355
1356 if (new) {
1357 xfer->recv.pay_len = 0;
1358 xfer->send.spd = min(sdev->target->fwdev->speed, max_speed);
1359 xfer->fc = sdev->target->sbp->fd.fc;
1360 }
1361
1362 if (tcode == FWTCODE_WREQB)
1363 xfer->send.pay_len = 8;
1364 else
1365 xfer->send.pay_len = 0;
1366
1367 xfer->sc = (caddr_t)sdev;
1368 fp = &xfer->send.hdr;
1369 fp->mode.wreqq.dest_hi = sdev->login->cmd_hi;
1370 fp->mode.wreqq.dest_lo = sdev->login->cmd_lo + offset;
1371 fp->mode.wreqq.tlrt = 0;
1372 fp->mode.wreqq.tcode = tcode;
1373 fp->mode.wreqq.pri = 0;
1374 fp->mode.wreqq.dst = FWLOCALBUS | sdev->target->fwdev->dst;
1375
1376 return xfer;
1377 }
1378
1379 static void
sbp_mgm_orb(struct sbp_dev * sdev,int func,struct sbp_ocb * aocb)1380 sbp_mgm_orb(struct sbp_dev *sdev, int func, struct sbp_ocb *aocb)
1381 {
1382 struct fw_xfer *xfer;
1383 struct fw_pkt *fp;
1384 struct sbp_ocb *ocb;
1385 struct sbp_target *target;
1386 int nid;
1387
1388 target = sdev->target;
1389 nid = target->sbp->fd.fc->nodeid | FWLOCALBUS;
1390
1391 SBP_LOCK_ASSERT(target->sbp);
1392 if (func == ORB_FUN_RUNQUEUE) {
1393 ocb = STAILQ_FIRST(&target->mgm_ocb_queue);
1394 if (target->mgm_ocb_cur != NULL || ocb == NULL) {
1395 return;
1396 }
1397 STAILQ_REMOVE_HEAD(&target->mgm_ocb_queue, ocb);
1398 goto start;
1399 }
1400 if ((ocb = sbp_get_ocb(sdev)) == NULL) {
1401 /* XXX */
1402 return;
1403 }
1404 ocb->flags = OCB_ACT_MGM;
1405 ocb->sdev = sdev;
1406
1407 bzero((void *)ocb->orb, sizeof(ocb->orb));
1408 ocb->orb[6] = htonl((nid << 16) | SBP_BIND_HI);
1409 ocb->orb[7] = htonl(SBP_DEV2ADDR(target->target_id, sdev->lun_id));
1410
1411 SBP_DEBUG(0)
1412 device_printf(sdev->target->sbp->fd.dev,
1413 "%s:%s %s\n",
1414 __func__,sdev->bustgtlun,
1415 orb_fun_name[(func>>16)&0xf]);
1416 END_DEBUG
1417 switch (func) {
1418 case ORB_FUN_LGI:
1419 ocb->orb[0] = ocb->orb[1] = 0; /* password */
1420 ocb->orb[2] = htonl(nid << 16);
1421 ocb->orb[3] = htonl(sdev->dma.bus_addr);
1422 ocb->orb[4] = htonl(ORB_NOTIFY | sdev->lun_id);
1423 if (ex_login)
1424 ocb->orb[4] |= htonl(ORB_EXV);
1425 ocb->orb[5] = htonl(SBP_LOGIN_SIZE);
1426 fwdma_sync(&sdev->dma, BUS_DMASYNC_PREREAD);
1427 break;
1428 case ORB_FUN_ATA:
1429 ocb->orb[0] = htonl((0 << 16) | 0);
1430 ocb->orb[1] = htonl(aocb->bus_addr & 0xffffffff);
1431 /* fall through */
1432 case ORB_FUN_RCN:
1433 case ORB_FUN_LGO:
1434 case ORB_FUN_LUR:
1435 case ORB_FUN_RST:
1436 case ORB_FUN_ATS:
1437 ocb->orb[4] = htonl(ORB_NOTIFY | func | sdev->login->id);
1438 break;
1439 }
1440
1441 if (target->mgm_ocb_cur != NULL) {
1442 /* there is a standing ORB */
1443 STAILQ_INSERT_TAIL(&sdev->target->mgm_ocb_queue, ocb, ocb);
1444 return;
1445 }
1446 start:
1447 target->mgm_ocb_cur = ocb;
1448
1449 callout_reset(&target->mgm_ocb_timeout, 5 * hz,
1450 sbp_mgm_timeout, (caddr_t)ocb);
1451 xfer = sbp_write_cmd(sdev, FWTCODE_WREQB, 0);
1452 if(xfer == NULL){
1453 return;
1454 }
1455 xfer->hand = sbp_mgm_callback;
1456
1457 fp = &xfer->send.hdr;
1458 fp->mode.wreqb.dest_hi = sdev->target->mgm_hi;
1459 fp->mode.wreqb.dest_lo = sdev->target->mgm_lo;
1460 fp->mode.wreqb.len = 8;
1461 fp->mode.wreqb.extcode = 0;
1462 xfer->send.payload[0] = htonl(nid << 16);
1463 xfer->send.payload[1] = htonl(ocb->bus_addr & 0xffffffff);
1464
1465 fw_asyreq(xfer->fc, -1, xfer);
1466 }
1467
1468 static void
sbp_print_scsi_cmd(struct sbp_ocb * ocb)1469 sbp_print_scsi_cmd(struct sbp_ocb *ocb)
1470 {
1471 struct ccb_scsiio *csio;
1472
1473 csio = &ocb->ccb->csio;
1474 printf("%s:%d:%d XPT_SCSI_IO: "
1475 "cmd: %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x"
1476 ", flags: 0x%02x, "
1477 "%db cmd/%db data/%db sense\n",
1478 device_get_nameunit(ocb->sdev->target->sbp->fd.dev),
1479 ocb->ccb->ccb_h.target_id, ocb->ccb->ccb_h.target_lun,
1480 csio->cdb_io.cdb_bytes[0],
1481 csio->cdb_io.cdb_bytes[1],
1482 csio->cdb_io.cdb_bytes[2],
1483 csio->cdb_io.cdb_bytes[3],
1484 csio->cdb_io.cdb_bytes[4],
1485 csio->cdb_io.cdb_bytes[5],
1486 csio->cdb_io.cdb_bytes[6],
1487 csio->cdb_io.cdb_bytes[7],
1488 csio->cdb_io.cdb_bytes[8],
1489 csio->cdb_io.cdb_bytes[9],
1490 ocb->ccb->ccb_h.flags & CAM_DIR_MASK,
1491 csio->cdb_len, csio->dxfer_len,
1492 csio->sense_len);
1493 }
1494
1495 static void
sbp_scsi_status(struct sbp_status * sbp_status,struct sbp_ocb * ocb)1496 sbp_scsi_status(struct sbp_status *sbp_status, struct sbp_ocb *ocb)
1497 {
1498 struct sbp_cmd_status *sbp_cmd_status;
1499 struct scsi_sense_data_fixed *sense;
1500
1501 sbp_cmd_status = (struct sbp_cmd_status *)sbp_status->data;
1502 sense = (struct scsi_sense_data_fixed *)&ocb->ccb->csio.sense_data;
1503
1504 SBP_DEBUG(0)
1505 sbp_print_scsi_cmd(ocb);
1506 /* XXX need decode status */
1507 printf("%s: SCSI status %x sfmt %x valid %x key %x code %x qlfr %x len %d\n",
1508 ocb->sdev->bustgtlun,
1509 sbp_cmd_status->status,
1510 sbp_cmd_status->sfmt,
1511 sbp_cmd_status->valid,
1512 sbp_cmd_status->s_key,
1513 sbp_cmd_status->s_code,
1514 sbp_cmd_status->s_qlfr,
1515 sbp_status->len);
1516 END_DEBUG
1517
1518 switch (sbp_cmd_status->status) {
1519 case SCSI_STATUS_CHECK_COND:
1520 case SCSI_STATUS_BUSY:
1521 case SCSI_STATUS_CMD_TERMINATED:
1522 if(sbp_cmd_status->sfmt == SBP_SFMT_CURR){
1523 sense->error_code = SSD_CURRENT_ERROR;
1524 }else{
1525 sense->error_code = SSD_DEFERRED_ERROR;
1526 }
1527 if(sbp_cmd_status->valid)
1528 sense->error_code |= SSD_ERRCODE_VALID;
1529 sense->flags = sbp_cmd_status->s_key;
1530 if(sbp_cmd_status->mark)
1531 sense->flags |= SSD_FILEMARK;
1532 if(sbp_cmd_status->eom)
1533 sense->flags |= SSD_EOM;
1534 if(sbp_cmd_status->ill_len)
1535 sense->flags |= SSD_ILI;
1536
1537 bcopy(&sbp_cmd_status->info, &sense->info[0], 4);
1538
1539 if (sbp_status->len <= 1)
1540 /* XXX not scsi status. shouldn't be happened */
1541 sense->extra_len = 0;
1542 else if (sbp_status->len <= 4)
1543 /* add_sense_code(_qual), info, cmd_spec_info */
1544 sense->extra_len = 6;
1545 else
1546 /* fru, sense_key_spec */
1547 sense->extra_len = 10;
1548
1549 bcopy(&sbp_cmd_status->cdb, &sense->cmd_spec_info[0], 4);
1550
1551 sense->add_sense_code = sbp_cmd_status->s_code;
1552 sense->add_sense_code_qual = sbp_cmd_status->s_qlfr;
1553 sense->fru = sbp_cmd_status->fru;
1554
1555 bcopy(&sbp_cmd_status->s_keydep[0],
1556 &sense->sense_key_spec[0], 3);
1557
1558 ocb->ccb->csio.scsi_status = sbp_cmd_status->status;
1559 ocb->ccb->ccb_h.status = CAM_SCSI_STATUS_ERROR
1560 | CAM_AUTOSNS_VALID;
1561 /*
1562 {
1563 uint8_t j, *tmp;
1564 tmp = sense;
1565 for( j = 0 ; j < 32 ; j+=8){
1566 printf("sense %02x%02x %02x%02x %02x%02x %02x%02x\n",
1567 tmp[j], tmp[j+1], tmp[j+2], tmp[j+3],
1568 tmp[j+4], tmp[j+5], tmp[j+6], tmp[j+7]);
1569 }
1570
1571 }
1572 */
1573 break;
1574 default:
1575 device_printf(ocb->sdev->target->sbp->fd.dev,
1576 "%s:%s unknown scsi status 0x%x\n",
1577 __func__, ocb->sdev->bustgtlun,
1578 sbp_cmd_status->status);
1579 }
1580 }
1581
1582 static void
sbp_fix_inq_data(struct sbp_ocb * ocb)1583 sbp_fix_inq_data(struct sbp_ocb *ocb)
1584 {
1585 union ccb *ccb;
1586 struct sbp_dev *sdev;
1587 struct scsi_inquiry_data *inq;
1588
1589 ccb = ocb->ccb;
1590 sdev = ocb->sdev;
1591
1592 if (ccb->csio.cdb_io.cdb_bytes[1] & SI_EVPD)
1593 return;
1594 SBP_DEBUG(1)
1595 device_printf(sdev->target->sbp->fd.dev,
1596 "%s:%s\n", __func__, sdev->bustgtlun);
1597 END_DEBUG
1598 inq = (struct scsi_inquiry_data *) ccb->csio.data_ptr;
1599 switch (SID_TYPE(inq)) {
1600 case T_DIRECT:
1601 #if 0
1602 /*
1603 * XXX Convert Direct Access device to RBC.
1604 * I've never seen FireWire DA devices which support READ_6.
1605 */
1606 if (SID_TYPE(inq) == T_DIRECT)
1607 inq->device |= T_RBC; /* T_DIRECT == 0 */
1608 #endif
1609 /* fall through */
1610 case T_RBC:
1611 /*
1612 * Override vendor/product/revision information.
1613 * Some devices sometimes return strange strings.
1614 */
1615 #if 1
1616 bcopy(sdev->vendor, inq->vendor, sizeof(inq->vendor));
1617 bcopy(sdev->product, inq->product, sizeof(inq->product));
1618 bcopy(sdev->revision+2, inq->revision, sizeof(inq->revision));
1619 #endif
1620 break;
1621 }
1622 /*
1623 * Force to enable/disable tagged queuing.
1624 * XXX CAM also checks SCP_QUEUE_DQUE flag in the control mode page.
1625 */
1626 if (sbp_tags > 0)
1627 inq->flags |= SID_CmdQue;
1628 else if (sbp_tags < 0)
1629 inq->flags &= ~SID_CmdQue;
1630
1631 }
1632
1633 static void
sbp_recv1(struct fw_xfer * xfer)1634 sbp_recv1(struct fw_xfer *xfer)
1635 {
1636 struct fw_pkt *rfp;
1637 #if NEED_RESPONSE
1638 struct fw_pkt *sfp;
1639 #endif
1640 struct sbp_softc *sbp;
1641 struct sbp_dev *sdev;
1642 struct sbp_ocb *ocb;
1643 struct sbp_login_res *login_res = NULL;
1644 struct sbp_status *sbp_status;
1645 struct sbp_target *target;
1646 int orb_fun, status_valid0, status_valid, t, l, reset_agent = 0;
1647 uint32_t addr;
1648 /*
1649 uint32_t *ld;
1650 ld = xfer->recv.buf;
1651 printf("sbp %x %d %d %08x %08x %08x %08x\n",
1652 xfer->resp, xfer->recv.len, xfer->recv.off, ntohl(ld[0]), ntohl(ld[1]), ntohl(ld[2]), ntohl(ld[3]));
1653 printf("sbp %08x %08x %08x %08x\n", ntohl(ld[4]), ntohl(ld[5]), ntohl(ld[6]), ntohl(ld[7]));
1654 printf("sbp %08x %08x %08x %08x\n", ntohl(ld[8]), ntohl(ld[9]), ntohl(ld[10]), ntohl(ld[11]));
1655 */
1656 sbp = (struct sbp_softc *)xfer->sc;
1657 SBP_LOCK_ASSERT(sbp);
1658 if (xfer->resp != 0){
1659 printf("sbp_recv: xfer->resp = %d\n", xfer->resp);
1660 goto done0;
1661 }
1662 if (xfer->recv.payload == NULL){
1663 printf("sbp_recv: xfer->recv.payload == NULL\n");
1664 goto done0;
1665 }
1666 rfp = &xfer->recv.hdr;
1667 if(rfp->mode.wreqb.tcode != FWTCODE_WREQB){
1668 printf("sbp_recv: tcode = %d\n", rfp->mode.wreqb.tcode);
1669 goto done0;
1670 }
1671 sbp_status = (struct sbp_status *)xfer->recv.payload;
1672 addr = rfp->mode.wreqb.dest_lo;
1673 SBP_DEBUG(2)
1674 printf("received address 0x%x\n", addr);
1675 END_DEBUG
1676 t = SBP_ADDR2TRG(addr);
1677 if (t >= SBP_NUM_TARGETS) {
1678 device_printf(sbp->fd.dev,
1679 "sbp_recv1: invalid target %d\n", t);
1680 goto done0;
1681 }
1682 target = &sbp->targets[t];
1683 l = SBP_ADDR2LUN(addr);
1684 if (l >= target->num_lun || target->luns[l] == NULL) {
1685 device_printf(sbp->fd.dev,
1686 "sbp_recv1: invalid lun %d (target=%d)\n", l, t);
1687 goto done0;
1688 }
1689 sdev = target->luns[l];
1690
1691 ocb = NULL;
1692 switch (sbp_status->src) {
1693 case 0:
1694 case 1:
1695 /* check mgm_ocb_cur first */
1696 ocb = target->mgm_ocb_cur;
1697 if (ocb != NULL) {
1698 if (OCB_MATCH(ocb, sbp_status)) {
1699 callout_stop(&target->mgm_ocb_timeout);
1700 target->mgm_ocb_cur = NULL;
1701 break;
1702 }
1703 }
1704 ocb = sbp_dequeue_ocb(sdev, sbp_status);
1705 if (ocb == NULL) {
1706 device_printf(sdev->target->sbp->fd.dev,
1707 #if defined(__DragonFly__) || __FreeBSD_version < 500000
1708 "%s:%s No ocb(%lx) on the queue\n",
1709 #else
1710 "%s:%s No ocb(%x) on the queue\n",
1711 #endif
1712 __func__,sdev->bustgtlun,
1713 ntohl(sbp_status->orb_lo));
1714 }
1715 break;
1716 case 2:
1717 /* unsolicit */
1718 device_printf(sdev->target->sbp->fd.dev,
1719 "%s:%s unsolicit status received\n",
1720 __func__, sdev->bustgtlun);
1721 break;
1722 default:
1723 device_printf(sdev->target->sbp->fd.dev,
1724 "%s:%s unknown sbp_status->src\n",
1725 __func__, sdev->bustgtlun);
1726 }
1727
1728 status_valid0 = (sbp_status->src < 2
1729 && sbp_status->resp == ORB_RES_CMPL
1730 && sbp_status->dead == 0);
1731 status_valid = (status_valid0 && sbp_status->status == 0);
1732
1733 if (!status_valid0 || debug > 2){
1734 int status;
1735 SBP_DEBUG(0)
1736 device_printf(sdev->target->sbp->fd.dev,
1737 "%s:%s ORB status src:%x resp:%x dead:%x"
1738 #if defined(__DragonFly__) || __FreeBSD_version < 500000
1739 " len:%x stat:%x orb:%x%08lx\n",
1740 #else
1741 " len:%x stat:%x orb:%x%08x\n",
1742 #endif
1743 __func__, sdev->bustgtlun,
1744 sbp_status->src, sbp_status->resp, sbp_status->dead,
1745 sbp_status->len, sbp_status->status,
1746 ntohs(sbp_status->orb_hi), ntohl(sbp_status->orb_lo));
1747 END_DEBUG
1748 device_printf(sdev->target->sbp->fd.dev,
1749 "%s\n", sdev->bustgtlun);
1750 status = sbp_status->status;
1751 switch(sbp_status->resp) {
1752 case 0:
1753 if (status > MAX_ORB_STATUS0)
1754 printf("%s\n", orb_status0[MAX_ORB_STATUS0]);
1755 else
1756 printf("%s\n", orb_status0[status]);
1757 break;
1758 case 1:
1759 printf("Obj: %s, Error: %s\n",
1760 orb_status1_object[(status>>6) & 3],
1761 orb_status1_serial_bus_error[status & 0xf]);
1762 break;
1763 case 2:
1764 printf("Illegal request\n");
1765 break;
1766 case 3:
1767 printf("Vendor dependent\n");
1768 break;
1769 default:
1770 printf("unknown respose code %d\n", sbp_status->resp);
1771 }
1772 }
1773
1774 /* we have to reset the fetch agent if it's dead */
1775 if (sbp_status->dead) {
1776 if (sdev->path) {
1777 xpt_freeze_devq(sdev->path, 1);
1778 sdev->freeze ++;
1779 }
1780 reset_agent = 1;
1781 }
1782
1783 if (ocb == NULL)
1784 goto done;
1785
1786 switch(ntohl(ocb->orb[4]) & ORB_FMT_MSK){
1787 case ORB_FMT_NOP:
1788 break;
1789 case ORB_FMT_VED:
1790 break;
1791 case ORB_FMT_STD:
1792 switch(ocb->flags) {
1793 case OCB_ACT_MGM:
1794 orb_fun = ntohl(ocb->orb[4]) & ORB_FUN_MSK;
1795 reset_agent = 0;
1796 switch(orb_fun) {
1797 case ORB_FUN_LGI:
1798 fwdma_sync(&sdev->dma, BUS_DMASYNC_POSTREAD);
1799 login_res = sdev->login;
1800 login_res->len = ntohs(login_res->len);
1801 login_res->id = ntohs(login_res->id);
1802 login_res->cmd_hi = ntohs(login_res->cmd_hi);
1803 login_res->cmd_lo = ntohl(login_res->cmd_lo);
1804 if (status_valid) {
1805 SBP_DEBUG(0)
1806 device_printf(sdev->target->sbp->fd.dev,
1807 "%s:%s login: len %d, ID %d, cmd %08x%08x, recon_hold %d\n",
1808 __func__, sdev->bustgtlun,
1809 login_res->len, login_res->id,
1810 login_res->cmd_hi, login_res->cmd_lo,
1811 ntohs(login_res->recon_hold));
1812 END_DEBUG
1813 sbp_busy_timeout(sdev);
1814 } else {
1815 /* forgot logout? */
1816 device_printf(sdev->target->sbp->fd.dev,
1817 "%s:%s login failed\n",
1818 __func__, sdev->bustgtlun);
1819 sdev->status = SBP_DEV_RESET;
1820 }
1821 break;
1822 case ORB_FUN_RCN:
1823 login_res = sdev->login;
1824 if (status_valid) {
1825 SBP_DEBUG(0)
1826 device_printf(sdev->target->sbp->fd.dev,
1827 "%s:%s reconnect: len %d, ID %d, cmd %08x%08x\n",
1828 __func__, sdev->bustgtlun,
1829 login_res->len, login_res->id,
1830 login_res->cmd_hi, login_res->cmd_lo);
1831 END_DEBUG
1832 if (sdev->status == SBP_DEV_ATTACHED)
1833 sbp_scan_dev(sdev);
1834 else
1835 sbp_agent_reset(sdev);
1836 } else {
1837 /* reconnection hold time exceed? */
1838 SBP_DEBUG(0)
1839 device_printf(sdev->target->sbp->fd.dev,
1840 "%s:%s reconnect failed\n",
1841 __func__, sdev->bustgtlun);
1842 END_DEBUG
1843 sbp_login(sdev);
1844 }
1845 break;
1846 case ORB_FUN_LGO:
1847 sdev->status = SBP_DEV_RESET;
1848 break;
1849 case ORB_FUN_RST:
1850 sbp_busy_timeout(sdev);
1851 break;
1852 case ORB_FUN_LUR:
1853 case ORB_FUN_ATA:
1854 case ORB_FUN_ATS:
1855 sbp_agent_reset(sdev);
1856 break;
1857 default:
1858 device_printf(sdev->target->sbp->fd.dev,
1859 "%s:%s unknown function %d\n",
1860 __func__, sdev->bustgtlun, orb_fun);
1861 break;
1862 }
1863 sbp_mgm_orb(sdev, ORB_FUN_RUNQUEUE, NULL);
1864 break;
1865 case OCB_ACT_CMD:
1866 sdev->timeout = 0;
1867 if(ocb->ccb != NULL){
1868 union ccb *ccb;
1869
1870 ccb = ocb->ccb;
1871 if(sbp_status->len > 1){
1872 sbp_scsi_status(sbp_status, ocb);
1873 }else{
1874 if(sbp_status->resp != ORB_RES_CMPL){
1875 ccb->ccb_h.status = CAM_REQ_CMP_ERR;
1876 }else{
1877 ccb->ccb_h.status = CAM_REQ_CMP;
1878 }
1879 }
1880 /* fix up inq data */
1881 if (ccb->csio.cdb_io.cdb_bytes[0] == INQUIRY)
1882 sbp_fix_inq_data(ocb);
1883 xpt_done(ccb);
1884 }
1885 break;
1886 default:
1887 break;
1888 }
1889 }
1890
1891 if (!use_doorbell)
1892 sbp_free_ocb(sdev, ocb);
1893 done:
1894 if (reset_agent)
1895 sbp_agent_reset(sdev);
1896
1897 done0:
1898 xfer->recv.pay_len = SBP_RECV_LEN;
1899 /* The received packet is usually small enough to be stored within
1900 * the buffer. In that case, the controller return ack_complete and
1901 * no respose is necessary.
1902 *
1903 * XXX fwohci.c and firewire.c should inform event_code such as
1904 * ack_complete or ack_pending to upper driver.
1905 */
1906 #if NEED_RESPONSE
1907 xfer->send.off = 0;
1908 sfp = (struct fw_pkt *)xfer->send.buf;
1909 sfp->mode.wres.dst = rfp->mode.wreqb.src;
1910 xfer->dst = sfp->mode.wres.dst;
1911 xfer->spd = min(sdev->target->fwdev->speed, max_speed);
1912 xfer->hand = sbp_loginres_callback;
1913
1914 sfp->mode.wres.tlrt = rfp->mode.wreqb.tlrt;
1915 sfp->mode.wres.tcode = FWTCODE_WRES;
1916 sfp->mode.wres.rtcode = 0;
1917 sfp->mode.wres.pri = 0;
1918
1919 fw_asyreq(xfer->fc, -1, xfer);
1920 #else
1921 /* recycle */
1922 STAILQ_INSERT_TAIL(&sbp->fwb.xferlist, xfer, link);
1923 #endif
1924 }
1925
1926 static void
sbp_recv(struct fw_xfer * xfer)1927 sbp_recv(struct fw_xfer *xfer)
1928 {
1929 struct sbp_softc *sbp;
1930
1931 sbp = (struct sbp_softc *)xfer->sc;
1932 SBP_LOCK(sbp);
1933 sbp_recv1(xfer);
1934 SBP_UNLOCK(sbp);
1935 }
1936 /*
1937 * sbp_attach()
1938 */
1939 static int
sbp_attach(device_t dev)1940 sbp_attach(device_t dev)
1941 {
1942 struct sbp_softc *sbp;
1943 struct cam_devq *devq;
1944 struct firewire_comm *fc;
1945 int i, error;
1946
1947 if (DFLTPHYS > SBP_MAXPHYS)
1948 device_printf(dev, "Warning, DFLTPHYS(%dKB) is larger than "
1949 "SBP_MAXPHYS(%dKB).\n", DFLTPHYS / 1024,
1950 SBP_MAXPHYS / 1024);
1951
1952 if (!firewire_phydma_enable)
1953 device_printf(dev, "Warning, hw.firewire.phydma_enable must be 1 "
1954 "for SBP over FireWire.\n");
1955 SBP_DEBUG(0)
1956 printf("sbp_attach (cold=%d)\n", cold);
1957 END_DEBUG
1958
1959 if (cold)
1960 sbp_cold ++;
1961 sbp = device_get_softc(dev);
1962 sbp->fd.dev = dev;
1963 sbp->fd.fc = fc = device_get_ivars(dev);
1964 mtx_init(&sbp->mtx, "sbp", NULL, MTX_DEF);
1965
1966 if (max_speed < 0)
1967 max_speed = fc->speed;
1968
1969 error = bus_dma_tag_create(/*parent*/fc->dmat,
1970 /* XXX shoud be 4 for sane backend? */
1971 /*alignment*/1,
1972 /*boundary*/0,
1973 /*lowaddr*/BUS_SPACE_MAXADDR_32BIT,
1974 /*highaddr*/BUS_SPACE_MAXADDR,
1975 /*filter*/NULL, /*filterarg*/NULL,
1976 /*maxsize*/0x100000, /*nsegments*/SBP_IND_MAX,
1977 /*maxsegsz*/SBP_SEG_MAX,
1978 /*flags*/BUS_DMA_ALLOCNOW,
1979 #if defined(__FreeBSD__) && __FreeBSD_version >= 501102
1980 /*lockfunc*/busdma_lock_mutex,
1981 /*lockarg*/&sbp->mtx,
1982 #endif
1983 &sbp->dmat);
1984 if (error != 0) {
1985 printf("sbp_attach: Could not allocate DMA tag "
1986 "- error %d\n", error);
1987 return (ENOMEM);
1988 }
1989
1990 devq = cam_simq_alloc(/*maxopenings*/SBP_NUM_OCB);
1991 if (devq == NULL)
1992 return (ENXIO);
1993
1994 for( i = 0 ; i < SBP_NUM_TARGETS ; i++){
1995 sbp->targets[i].fwdev = NULL;
1996 sbp->targets[i].luns = NULL;
1997 }
1998
1999 sbp->sim = cam_sim_alloc(sbp_action, sbp_poll, "sbp", sbp,
2000 device_get_unit(dev),
2001 &sbp->mtx,
2002 /*untagged*/ 1,
2003 /*tagged*/ SBP_QUEUE_LEN - 1,
2004 devq);
2005
2006 if (sbp->sim == NULL) {
2007 cam_simq_free(devq);
2008 return (ENXIO);
2009 }
2010
2011 SBP_LOCK(sbp);
2012 if (xpt_bus_register(sbp->sim, dev, /*bus*/0) != CAM_SUCCESS)
2013 goto fail;
2014
2015 if (xpt_create_path(&sbp->path, NULL, cam_sim_path(sbp->sim),
2016 CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD) != CAM_REQ_CMP) {
2017 xpt_bus_deregister(cam_sim_path(sbp->sim));
2018 goto fail;
2019 }
2020 SBP_UNLOCK(sbp);
2021
2022 /* We reserve 16 bit space (4 bytes X 64 targets X 256 luns) */
2023 sbp->fwb.start = ((u_int64_t)SBP_BIND_HI << 32) | SBP_DEV2ADDR(0, 0);
2024 sbp->fwb.end = sbp->fwb.start + 0xffff;
2025 /* pre-allocate xfer */
2026 STAILQ_INIT(&sbp->fwb.xferlist);
2027 fw_xferlist_add(&sbp->fwb.xferlist, M_SBP,
2028 /*send*/ 0, /*recv*/ SBP_RECV_LEN, SBP_NUM_OCB/2,
2029 fc, (void *)sbp, sbp_recv);
2030
2031 fw_bindadd(fc, &sbp->fwb);
2032
2033 sbp->fd.post_busreset = sbp_post_busreset;
2034 sbp->fd.post_explore = sbp_post_explore;
2035
2036 if (fc->status != -1) {
2037 sbp_post_busreset(sbp);
2038 sbp_post_explore(sbp);
2039 }
2040 SBP_LOCK(sbp);
2041 xpt_async(AC_BUS_RESET, sbp->path, /*arg*/ NULL);
2042 SBP_UNLOCK(sbp);
2043
2044 return (0);
2045 fail:
2046 SBP_UNLOCK(sbp);
2047 cam_sim_free(sbp->sim, /*free_devq*/TRUE);
2048 return (ENXIO);
2049 }
2050
2051 static int
sbp_logout_all(struct sbp_softc * sbp)2052 sbp_logout_all(struct sbp_softc *sbp)
2053 {
2054 struct sbp_target *target;
2055 struct sbp_dev *sdev;
2056 int i, j;
2057
2058 SBP_DEBUG(0)
2059 printf("sbp_logout_all\n");
2060 END_DEBUG
2061 SBP_LOCK_ASSERT(sbp);
2062 for (i = 0 ; i < SBP_NUM_TARGETS ; i ++) {
2063 target = &sbp->targets[i];
2064 if (target->luns == NULL)
2065 continue;
2066 for (j = 0; j < target->num_lun; j++) {
2067 sdev = target->luns[j];
2068 if (sdev == NULL)
2069 continue;
2070 callout_stop(&sdev->login_callout);
2071 if (sdev->status >= SBP_DEV_TOATTACH &&
2072 sdev->status <= SBP_DEV_ATTACHED)
2073 sbp_mgm_orb(sdev, ORB_FUN_LGO, NULL);
2074 }
2075 }
2076
2077 return 0;
2078 }
2079
2080 static int
sbp_shutdown(device_t dev)2081 sbp_shutdown(device_t dev)
2082 {
2083 struct sbp_softc *sbp = ((struct sbp_softc *)device_get_softc(dev));
2084
2085 SBP_LOCK(sbp);
2086 sbp_logout_all(sbp);
2087 SBP_UNLOCK(sbp);
2088 return (0);
2089 }
2090
2091 static void
sbp_free_sdev(struct sbp_dev * sdev)2092 sbp_free_sdev(struct sbp_dev *sdev)
2093 {
2094 struct sbp_softc *sbp;
2095 int i;
2096
2097 if (sdev == NULL)
2098 return;
2099 sbp = sdev->target->sbp;
2100 SBP_UNLOCK(sbp);
2101 callout_drain(&sdev->login_callout);
2102 for (i = 0; i < SBP_QUEUE_LEN; i++) {
2103 callout_drain(&sdev->ocb[i].timer);
2104 bus_dmamap_destroy(sbp->dmat, sdev->ocb[i].dmamap);
2105 }
2106 fwdma_free(sbp->fd.fc, &sdev->dma);
2107 free(sdev, M_SBP);
2108 SBP_LOCK(sbp);
2109 }
2110
2111 static void
sbp_free_target(struct sbp_target * target)2112 sbp_free_target(struct sbp_target *target)
2113 {
2114 struct sbp_softc *sbp;
2115 struct fw_xfer *xfer, *next;
2116 int i;
2117
2118 if (target->luns == NULL)
2119 return;
2120 sbp = target->sbp;
2121 SBP_LOCK_ASSERT(sbp);
2122 SBP_UNLOCK(sbp);
2123 callout_drain(&target->mgm_ocb_timeout);
2124 callout_drain(&target->scan_callout);
2125 SBP_LOCK(sbp);
2126 for (i = 0; i < target->num_lun; i++)
2127 sbp_free_sdev(target->luns[i]);
2128
2129 STAILQ_FOREACH_SAFE(xfer, &target->xferlist, link, next) {
2130 fw_xfer_free_buf(xfer);
2131 }
2132 STAILQ_INIT(&target->xferlist);
2133 free(target->luns, M_SBP);
2134 target->num_lun = 0;
2135 target->luns = NULL;
2136 target->fwdev = NULL;
2137 }
2138
2139 static int
sbp_detach(device_t dev)2140 sbp_detach(device_t dev)
2141 {
2142 struct sbp_softc *sbp = ((struct sbp_softc *)device_get_softc(dev));
2143 struct firewire_comm *fc = sbp->fd.fc;
2144 int i;
2145
2146 SBP_DEBUG(0)
2147 printf("sbp_detach\n");
2148 END_DEBUG
2149
2150 SBP_LOCK(sbp);
2151 for (i = 0; i < SBP_NUM_TARGETS; i ++)
2152 sbp_cam_detach_target(&sbp->targets[i]);
2153
2154 xpt_async(AC_LOST_DEVICE, sbp->path, NULL);
2155 xpt_free_path(sbp->path);
2156 xpt_bus_deregister(cam_sim_path(sbp->sim));
2157 cam_sim_free(sbp->sim, /*free_devq*/ TRUE);
2158
2159 sbp_logout_all(sbp);
2160 SBP_UNLOCK(sbp);
2161
2162 /* XXX wait for logout completion */
2163 pause("sbpdtc", hz/2);
2164
2165 SBP_LOCK(sbp);
2166 for (i = 0 ; i < SBP_NUM_TARGETS ; i ++)
2167 sbp_free_target(&sbp->targets[i]);
2168 SBP_UNLOCK(sbp);
2169
2170 fw_bindremove(fc, &sbp->fwb);
2171 fw_xferlist_remove(&sbp->fwb.xferlist);
2172
2173 bus_dma_tag_destroy(sbp->dmat);
2174 mtx_destroy(&sbp->mtx);
2175
2176 return (0);
2177 }
2178
2179 static void
sbp_cam_detach_sdev(struct sbp_dev * sdev)2180 sbp_cam_detach_sdev(struct sbp_dev *sdev)
2181 {
2182 if (sdev == NULL)
2183 return;
2184 if (sdev->status == SBP_DEV_DEAD)
2185 return;
2186 if (sdev->status == SBP_DEV_RESET)
2187 return;
2188 SBP_LOCK_ASSERT(sdev->target->sbp);
2189 sbp_abort_all_ocbs(sdev, CAM_DEV_NOT_THERE);
2190 if (sdev->path) {
2191 xpt_release_devq(sdev->path,
2192 sdev->freeze, TRUE);
2193 sdev->freeze = 0;
2194 xpt_async(AC_LOST_DEVICE, sdev->path, NULL);
2195 xpt_free_path(sdev->path);
2196 sdev->path = NULL;
2197 }
2198 }
2199
2200 static void
sbp_cam_detach_target(struct sbp_target * target)2201 sbp_cam_detach_target(struct sbp_target *target)
2202 {
2203 int i;
2204
2205 SBP_LOCK_ASSERT(target->sbp);
2206 if (target->luns != NULL) {
2207 SBP_DEBUG(0)
2208 printf("sbp_detach_target %d\n", target->target_id);
2209 END_DEBUG
2210 callout_stop(&target->scan_callout);
2211 for (i = 0; i < target->num_lun; i++)
2212 sbp_cam_detach_sdev(target->luns[i]);
2213 }
2214 }
2215
2216 static void
sbp_target_reset(struct sbp_dev * sdev,int method)2217 sbp_target_reset(struct sbp_dev *sdev, int method)
2218 {
2219 int i;
2220 struct sbp_target *target = sdev->target;
2221 struct sbp_dev *tsdev;
2222
2223 SBP_LOCK_ASSERT(target->sbp);
2224 for (i = 0; i < target->num_lun; i++) {
2225 tsdev = target->luns[i];
2226 if (tsdev == NULL)
2227 continue;
2228 if (tsdev->status == SBP_DEV_DEAD)
2229 continue;
2230 if (tsdev->status == SBP_DEV_RESET)
2231 continue;
2232 xpt_freeze_devq(tsdev->path, 1);
2233 tsdev->freeze ++;
2234 sbp_abort_all_ocbs(tsdev, CAM_CMD_TIMEOUT);
2235 if (method == 2)
2236 tsdev->status = SBP_DEV_LOGIN;
2237 }
2238 switch(method) {
2239 case 1:
2240 printf("target reset\n");
2241 sbp_mgm_orb(sdev, ORB_FUN_RST, NULL);
2242 break;
2243 case 2:
2244 printf("reset start\n");
2245 sbp_reset_start(sdev);
2246 break;
2247 }
2248
2249 }
2250
2251 static void
sbp_mgm_timeout(void * arg)2252 sbp_mgm_timeout(void *arg)
2253 {
2254 struct sbp_ocb *ocb = (struct sbp_ocb *)arg;
2255 struct sbp_dev *sdev = ocb->sdev;
2256 struct sbp_target *target = sdev->target;
2257
2258 SBP_LOCK_ASSERT(target->sbp);
2259 device_printf(sdev->target->sbp->fd.dev,
2260 "%s:%s request timeout(mgm orb:0x%08x)\n",
2261 __func__, sdev->bustgtlun, (uint32_t)ocb->bus_addr);
2262 target->mgm_ocb_cur = NULL;
2263 sbp_free_ocb(sdev, ocb);
2264 #if 0
2265 /* XXX */
2266 printf("run next request\n");
2267 sbp_mgm_orb(sdev, ORB_FUN_RUNQUEUE, NULL);
2268 #endif
2269 device_printf(sdev->target->sbp->fd.dev,
2270 "%s:%s reset start\n",
2271 __func__, sdev->bustgtlun);
2272 sbp_reset_start(sdev);
2273 }
2274
2275 static void
sbp_timeout(void * arg)2276 sbp_timeout(void *arg)
2277 {
2278 struct sbp_ocb *ocb = (struct sbp_ocb *)arg;
2279 struct sbp_dev *sdev = ocb->sdev;
2280
2281 device_printf(sdev->target->sbp->fd.dev,
2282 "%s:%s request timeout(cmd orb:0x%08x) ... ",
2283 __func__, sdev->bustgtlun, (uint32_t)ocb->bus_addr);
2284
2285 SBP_LOCK_ASSERT(sdev->target->sbp);
2286 sdev->timeout ++;
2287 switch(sdev->timeout) {
2288 case 1:
2289 printf("agent reset\n");
2290 xpt_freeze_devq(sdev->path, 1);
2291 sdev->freeze ++;
2292 sbp_abort_all_ocbs(sdev, CAM_CMD_TIMEOUT);
2293 sbp_agent_reset(sdev);
2294 break;
2295 case 2:
2296 case 3:
2297 sbp_target_reset(sdev, sdev->timeout - 1);
2298 break;
2299 #if 0
2300 default:
2301 /* XXX give up */
2302 sbp_cam_detach_target(target);
2303 if (target->luns != NULL)
2304 free(target->luns, M_SBP);
2305 target->num_lun = 0;
2306 target->luns = NULL;
2307 target->fwdev = NULL;
2308 #endif
2309 }
2310 }
2311
2312 static void
sbp_action(struct cam_sim * sim,union ccb * ccb)2313 sbp_action(struct cam_sim *sim, union ccb *ccb)
2314 {
2315
2316 struct sbp_softc *sbp = (struct sbp_softc *)sim->softc;
2317 struct sbp_target *target = NULL;
2318 struct sbp_dev *sdev = NULL;
2319
2320 if (sbp != NULL)
2321 SBP_LOCK_ASSERT(sbp);
2322 /* target:lun -> sdev mapping */
2323 if (sbp != NULL
2324 && ccb->ccb_h.target_id != CAM_TARGET_WILDCARD
2325 && ccb->ccb_h.target_id < SBP_NUM_TARGETS) {
2326 target = &sbp->targets[ccb->ccb_h.target_id];
2327 if (target->fwdev != NULL
2328 && ccb->ccb_h.target_lun != CAM_LUN_WILDCARD
2329 && ccb->ccb_h.target_lun < target->num_lun) {
2330 sdev = target->luns[ccb->ccb_h.target_lun];
2331 if (sdev != NULL && sdev->status != SBP_DEV_ATTACHED &&
2332 sdev->status != SBP_DEV_PROBE)
2333 sdev = NULL;
2334 }
2335 }
2336
2337 SBP_DEBUG(1)
2338 if (sdev == NULL)
2339 printf("invalid target %d lun %d\n",
2340 ccb->ccb_h.target_id, ccb->ccb_h.target_lun);
2341 END_DEBUG
2342
2343 switch (ccb->ccb_h.func_code) {
2344 case XPT_SCSI_IO:
2345 case XPT_RESET_DEV:
2346 case XPT_GET_TRAN_SETTINGS:
2347 case XPT_SET_TRAN_SETTINGS:
2348 case XPT_CALC_GEOMETRY:
2349 if (sdev == NULL) {
2350 SBP_DEBUG(1)
2351 printf("%s:%d:%d:func_code 0x%04x: "
2352 "Invalid target (target needed)\n",
2353 device_get_nameunit(sbp->fd.dev),
2354 ccb->ccb_h.target_id, ccb->ccb_h.target_lun,
2355 ccb->ccb_h.func_code);
2356 END_DEBUG
2357
2358 ccb->ccb_h.status = CAM_DEV_NOT_THERE;
2359 xpt_done(ccb);
2360 return;
2361 }
2362 break;
2363 case XPT_PATH_INQ:
2364 case XPT_NOOP:
2365 /* The opcodes sometimes aimed at a target (sc is valid),
2366 * sometimes aimed at the SIM (sc is invalid and target is
2367 * CAM_TARGET_WILDCARD)
2368 */
2369 if (sbp == NULL &&
2370 ccb->ccb_h.target_id != CAM_TARGET_WILDCARD) {
2371 SBP_DEBUG(0)
2372 printf("%s:%d:%d func_code 0x%04x: "
2373 "Invalid target (no wildcard)\n",
2374 device_get_nameunit(sbp->fd.dev),
2375 ccb->ccb_h.target_id, ccb->ccb_h.target_lun,
2376 ccb->ccb_h.func_code);
2377 END_DEBUG
2378 ccb->ccb_h.status = CAM_DEV_NOT_THERE;
2379 xpt_done(ccb);
2380 return;
2381 }
2382 break;
2383 default:
2384 /* XXX Hm, we should check the input parameters */
2385 break;
2386 }
2387
2388 switch (ccb->ccb_h.func_code) {
2389 case XPT_SCSI_IO:
2390 {
2391 struct ccb_scsiio *csio;
2392 struct sbp_ocb *ocb;
2393 int speed;
2394 void *cdb;
2395
2396 csio = &ccb->csio;
2397 mtx_assert(sim->mtx, MA_OWNED);
2398
2399 SBP_DEBUG(2)
2400 printf("%s:%d:%d XPT_SCSI_IO: "
2401 "cmd: %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x"
2402 ", flags: 0x%02x, "
2403 "%db cmd/%db data/%db sense\n",
2404 device_get_nameunit(sbp->fd.dev),
2405 ccb->ccb_h.target_id, ccb->ccb_h.target_lun,
2406 csio->cdb_io.cdb_bytes[0],
2407 csio->cdb_io.cdb_bytes[1],
2408 csio->cdb_io.cdb_bytes[2],
2409 csio->cdb_io.cdb_bytes[3],
2410 csio->cdb_io.cdb_bytes[4],
2411 csio->cdb_io.cdb_bytes[5],
2412 csio->cdb_io.cdb_bytes[6],
2413 csio->cdb_io.cdb_bytes[7],
2414 csio->cdb_io.cdb_bytes[8],
2415 csio->cdb_io.cdb_bytes[9],
2416 ccb->ccb_h.flags & CAM_DIR_MASK,
2417 csio->cdb_len, csio->dxfer_len,
2418 csio->sense_len);
2419 END_DEBUG
2420 if(sdev == NULL){
2421 ccb->ccb_h.status = CAM_DEV_NOT_THERE;
2422 xpt_done(ccb);
2423 return;
2424 }
2425 if (csio->cdb_len > sizeof(ocb->orb) - 5 * sizeof(uint32_t)) {
2426 ccb->ccb_h.status = CAM_REQ_INVALID;
2427 xpt_done(ccb);
2428 return;
2429 }
2430 #if 0
2431 /* if we are in probe stage, pass only probe commands */
2432 if (sdev->status == SBP_DEV_PROBE) {
2433 char *name;
2434 name = xpt_path_periph(ccb->ccb_h.path)->periph_name;
2435 printf("probe stage, periph name: %s\n", name);
2436 if (strcmp(name, "probe") != 0) {
2437 ccb->ccb_h.status = CAM_REQUEUE_REQ;
2438 xpt_done(ccb);
2439 return;
2440 }
2441 }
2442 #endif
2443 if ((ocb = sbp_get_ocb(sdev)) == NULL) {
2444 ccb->ccb_h.status = CAM_RESRC_UNAVAIL;
2445 if (sdev->freeze == 0) {
2446 xpt_freeze_devq(sdev->path, 1);
2447 sdev->freeze ++;
2448 }
2449 xpt_done(ccb);
2450 return;
2451 }
2452
2453 ocb->flags = OCB_ACT_CMD;
2454 ocb->sdev = sdev;
2455 ocb->ccb = ccb;
2456 ccb->ccb_h.ccb_sdev_ptr = sdev;
2457 ocb->orb[0] = htonl(1U << 31);
2458 ocb->orb[1] = 0;
2459 ocb->orb[2] = htonl(((sbp->fd.fc->nodeid | FWLOCALBUS )<< 16) );
2460 ocb->orb[3] = htonl(ocb->bus_addr + IND_PTR_OFFSET);
2461 speed = min(target->fwdev->speed, max_speed);
2462 ocb->orb[4] = htonl(ORB_NOTIFY | ORB_CMD_SPD(speed)
2463 | ORB_CMD_MAXP(speed + 7));
2464 if((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN){
2465 ocb->orb[4] |= htonl(ORB_CMD_IN);
2466 }
2467
2468 if (csio->ccb_h.flags & CAM_CDB_POINTER)
2469 cdb = (void *)csio->cdb_io.cdb_ptr;
2470 else
2471 cdb = (void *)&csio->cdb_io.cdb_bytes;
2472 bcopy(cdb, (void *)&ocb->orb[5], csio->cdb_len);
2473 /*
2474 printf("ORB %08x %08x %08x %08x\n", ntohl(ocb->orb[0]), ntohl(ocb->orb[1]), ntohl(ocb->orb[2]), ntohl(ocb->orb[3]));
2475 printf("ORB %08x %08x %08x %08x\n", ntohl(ocb->orb[4]), ntohl(ocb->orb[5]), ntohl(ocb->orb[6]), ntohl(ocb->orb[7]));
2476 */
2477 if (ccb->csio.dxfer_len > 0) {
2478 int error;
2479
2480 error = bus_dmamap_load_ccb(/*dma tag*/sbp->dmat,
2481 /*dma map*/ocb->dmamap,
2482 ccb,
2483 sbp_execute_ocb,
2484 ocb,
2485 /*flags*/0);
2486 if (error)
2487 printf("sbp: bus_dmamap_load error %d\n", error);
2488 } else
2489 sbp_execute_ocb(ocb, NULL, 0, 0);
2490 break;
2491 }
2492 case XPT_CALC_GEOMETRY:
2493 {
2494 struct ccb_calc_geometry *ccg;
2495 #if defined(__DragonFly__) || __FreeBSD_version < 501100
2496 uint32_t size_mb;
2497 uint32_t secs_per_cylinder;
2498 int extended = 1;
2499 #endif
2500
2501 ccg = &ccb->ccg;
2502 if (ccg->block_size == 0) {
2503 printf("sbp_action: block_size is 0.\n");
2504 ccb->ccb_h.status = CAM_REQ_INVALID;
2505 xpt_done(ccb);
2506 break;
2507 }
2508 SBP_DEBUG(1)
2509 printf("%s:%d:%d:%d:XPT_CALC_GEOMETRY: "
2510 #if defined(__DragonFly__) || __FreeBSD_version < 500000
2511 "Volume size = %d\n",
2512 #else
2513 "Volume size = %jd\n",
2514 #endif
2515 device_get_nameunit(sbp->fd.dev),
2516 cam_sim_path(sbp->sim),
2517 ccb->ccb_h.target_id, ccb->ccb_h.target_lun,
2518 #if defined(__FreeBSD__) && __FreeBSD_version >= 500000
2519 (uintmax_t)
2520 #endif
2521 ccg->volume_size);
2522 END_DEBUG
2523
2524 #if defined(__DragonFly__) || __FreeBSD_version < 501100
2525 size_mb = ccg->volume_size
2526 / ((1024L * 1024L) / ccg->block_size);
2527
2528 if (size_mb > 1024 && extended) {
2529 ccg->heads = 255;
2530 ccg->secs_per_track = 63;
2531 } else {
2532 ccg->heads = 64;
2533 ccg->secs_per_track = 32;
2534 }
2535 secs_per_cylinder = ccg->heads * ccg->secs_per_track;
2536 ccg->cylinders = ccg->volume_size / secs_per_cylinder;
2537 ccb->ccb_h.status = CAM_REQ_CMP;
2538 #else
2539 cam_calc_geometry(ccg, /*extended*/1);
2540 #endif
2541 xpt_done(ccb);
2542 break;
2543 }
2544 case XPT_RESET_BUS: /* Reset the specified SCSI bus */
2545 {
2546
2547 SBP_DEBUG(1)
2548 printf("%s:%d:XPT_RESET_BUS: \n",
2549 device_get_nameunit(sbp->fd.dev), cam_sim_path(sbp->sim));
2550 END_DEBUG
2551
2552 ccb->ccb_h.status = CAM_REQ_INVALID;
2553 xpt_done(ccb);
2554 break;
2555 }
2556 case XPT_PATH_INQ: /* Path routing inquiry */
2557 {
2558 struct ccb_pathinq *cpi = &ccb->cpi;
2559
2560 SBP_DEBUG(1)
2561 printf("%s:%d:%d XPT_PATH_INQ:.\n",
2562 device_get_nameunit(sbp->fd.dev),
2563 ccb->ccb_h.target_id, ccb->ccb_h.target_lun);
2564 END_DEBUG
2565 cpi->version_num = 1; /* XXX??? */
2566 cpi->hba_inquiry = PI_TAG_ABLE;
2567 cpi->target_sprt = 0;
2568 cpi->hba_misc = PIM_NOBUSRESET | PIM_NO_6_BYTE;
2569 cpi->hba_eng_cnt = 0;
2570 cpi->max_target = SBP_NUM_TARGETS - 1;
2571 cpi->max_lun = SBP_NUM_LUNS - 1;
2572 cpi->initiator_id = SBP_INITIATOR;
2573 cpi->bus_id = sim->bus_id;
2574 cpi->base_transfer_speed = 400 * 1000 / 8;
2575 strlcpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN);
2576 strlcpy(cpi->hba_vid, "SBP", HBA_IDLEN);
2577 strlcpy(cpi->dev_name, sim->sim_name, DEV_IDLEN);
2578 cpi->unit_number = sim->unit_number;
2579 cpi->transport = XPORT_SPI; /* XX should have a FireWire */
2580 cpi->transport_version = 2;
2581 cpi->protocol = PROTO_SCSI;
2582 cpi->protocol_version = SCSI_REV_2;
2583
2584 cpi->ccb_h.status = CAM_REQ_CMP;
2585 xpt_done(ccb);
2586 break;
2587 }
2588 case XPT_GET_TRAN_SETTINGS:
2589 {
2590 struct ccb_trans_settings *cts = &ccb->cts;
2591 struct ccb_trans_settings_scsi *scsi =
2592 &cts->proto_specific.scsi;
2593 struct ccb_trans_settings_spi *spi =
2594 &cts->xport_specific.spi;
2595
2596 cts->protocol = PROTO_SCSI;
2597 cts->protocol_version = SCSI_REV_2;
2598 cts->transport = XPORT_SPI; /* should have a FireWire */
2599 cts->transport_version = 2;
2600 spi->valid = CTS_SPI_VALID_DISC;
2601 spi->flags = CTS_SPI_FLAGS_DISC_ENB;
2602 scsi->valid = CTS_SCSI_VALID_TQ;
2603 scsi->flags = CTS_SCSI_FLAGS_TAG_ENB;
2604 SBP_DEBUG(1)
2605 printf("%s:%d:%d XPT_GET_TRAN_SETTINGS:.\n",
2606 device_get_nameunit(sbp->fd.dev),
2607 ccb->ccb_h.target_id, ccb->ccb_h.target_lun);
2608 END_DEBUG
2609 cts->ccb_h.status = CAM_REQ_CMP;
2610 xpt_done(ccb);
2611 break;
2612 }
2613 case XPT_ABORT:
2614 ccb->ccb_h.status = CAM_UA_ABORT;
2615 xpt_done(ccb);
2616 break;
2617 case XPT_SET_TRAN_SETTINGS:
2618 /* XXX */
2619 default:
2620 ccb->ccb_h.status = CAM_REQ_INVALID;
2621 xpt_done(ccb);
2622 break;
2623 }
2624 return;
2625 }
2626
2627 static void
sbp_execute_ocb(void * arg,bus_dma_segment_t * segments,int seg,int error)2628 sbp_execute_ocb(void *arg, bus_dma_segment_t *segments, int seg, int error)
2629 {
2630 int i;
2631 struct sbp_ocb *ocb;
2632 struct sbp_ocb *prev;
2633 bus_dma_segment_t *s;
2634
2635 if (error)
2636 printf("sbp_execute_ocb: error=%d\n", error);
2637
2638 ocb = (struct sbp_ocb *)arg;
2639
2640 SBP_DEBUG(2)
2641 printf("sbp_execute_ocb: seg %d", seg);
2642 for (i = 0; i < seg; i++)
2643 #if defined(__DragonFly__) || __FreeBSD_version < 500000
2644 printf(", %x:%d", segments[i].ds_addr, segments[i].ds_len);
2645 #else
2646 printf(", %jx:%jd", (uintmax_t)segments[i].ds_addr,
2647 (uintmax_t)segments[i].ds_len);
2648 #endif
2649 printf("\n");
2650 END_DEBUG
2651
2652 if (seg == 1) {
2653 /* direct pointer */
2654 s = &segments[0];
2655 if (s->ds_len > SBP_SEG_MAX)
2656 panic("ds_len > SBP_SEG_MAX, fix busdma code");
2657 ocb->orb[3] = htonl(s->ds_addr);
2658 ocb->orb[4] |= htonl(s->ds_len);
2659 } else if(seg > 1) {
2660 /* page table */
2661 for (i = 0; i < seg; i++) {
2662 s = &segments[i];
2663 SBP_DEBUG(0)
2664 /* XXX LSI Logic "< 16 byte" bug might be hit */
2665 if (s->ds_len < 16)
2666 printf("sbp_execute_ocb: warning, "
2667 #if defined(__DragonFly__) || __FreeBSD_version < 500000
2668 "segment length(%d) is less than 16."
2669 #else
2670 "segment length(%zd) is less than 16."
2671 #endif
2672 "(seg=%d/%d)\n", (size_t)s->ds_len, i+1, seg);
2673 END_DEBUG
2674 if (s->ds_len > SBP_SEG_MAX)
2675 panic("ds_len > SBP_SEG_MAX, fix busdma code");
2676 ocb->ind_ptr[i].hi = htonl(s->ds_len << 16);
2677 ocb->ind_ptr[i].lo = htonl(s->ds_addr);
2678 }
2679 ocb->orb[4] |= htonl(ORB_CMD_PTBL | seg);
2680 }
2681
2682 if (seg > 0)
2683 bus_dmamap_sync(ocb->sdev->target->sbp->dmat, ocb->dmamap,
2684 (ntohl(ocb->orb[4]) & ORB_CMD_IN) ?
2685 BUS_DMASYNC_PREREAD : BUS_DMASYNC_PREWRITE);
2686 prev = sbp_enqueue_ocb(ocb->sdev, ocb);
2687 fwdma_sync(&ocb->sdev->dma, BUS_DMASYNC_PREWRITE);
2688 if (use_doorbell) {
2689 if (prev == NULL) {
2690 if (ocb->sdev->last_ocb != NULL)
2691 sbp_doorbell(ocb->sdev);
2692 else
2693 sbp_orb_pointer(ocb->sdev, ocb);
2694 }
2695 } else {
2696 if (prev == NULL || (ocb->sdev->flags & ORB_LINK_DEAD) != 0) {
2697 ocb->sdev->flags &= ~ORB_LINK_DEAD;
2698 sbp_orb_pointer(ocb->sdev, ocb);
2699 }
2700 }
2701 }
2702
2703 static void
sbp_poll(struct cam_sim * sim)2704 sbp_poll(struct cam_sim *sim)
2705 {
2706 struct sbp_softc *sbp;
2707 struct firewire_comm *fc;
2708
2709 sbp = (struct sbp_softc *)sim->softc;
2710 fc = sbp->fd.fc;
2711
2712 fc->poll(fc, 0, -1);
2713
2714 return;
2715 }
2716
2717 static struct sbp_ocb *
sbp_dequeue_ocb(struct sbp_dev * sdev,struct sbp_status * sbp_status)2718 sbp_dequeue_ocb(struct sbp_dev *sdev, struct sbp_status *sbp_status)
2719 {
2720 struct sbp_ocb *ocb;
2721 struct sbp_ocb *next;
2722 int order = 0;
2723
2724 SBP_DEBUG(1)
2725 device_printf(sdev->target->sbp->fd.dev,
2726 #if defined(__DragonFly__) || __FreeBSD_version < 500000
2727 "%s:%s 0x%08lx src %d\n",
2728 #else
2729 "%s:%s 0x%08x src %d\n",
2730 #endif
2731 __func__, sdev->bustgtlun, ntohl(sbp_status->orb_lo), sbp_status->src);
2732 END_DEBUG
2733 SBP_LOCK_ASSERT(sdev->target->sbp);
2734 STAILQ_FOREACH_SAFE(ocb, &sdev->ocbs, ocb, next) {
2735 if (OCB_MATCH(ocb, sbp_status)) {
2736 /* found */
2737 STAILQ_REMOVE(&sdev->ocbs, ocb, sbp_ocb, ocb);
2738 if (ocb->ccb != NULL)
2739 callout_stop(&ocb->timer);
2740 if (ntohl(ocb->orb[4]) & 0xffff) {
2741 bus_dmamap_sync(sdev->target->sbp->dmat,
2742 ocb->dmamap,
2743 (ntohl(ocb->orb[4]) & ORB_CMD_IN) ?
2744 BUS_DMASYNC_POSTREAD :
2745 BUS_DMASYNC_POSTWRITE);
2746 bus_dmamap_unload(sdev->target->sbp->dmat,
2747 ocb->dmamap);
2748 }
2749 if (!use_doorbell) {
2750 if (sbp_status->src == SRC_NO_NEXT) {
2751 if (next != NULL)
2752 sbp_orb_pointer(sdev, next);
2753 else if (order > 0) {
2754 /*
2755 * Unordered execution
2756 * We need to send pointer for
2757 * next ORB
2758 */
2759 sdev->flags |= ORB_LINK_DEAD;
2760 }
2761 }
2762 } else {
2763 /*
2764 * XXX this is not correct for unordered
2765 * execution.
2766 */
2767 if (sdev->last_ocb != NULL) {
2768 sbp_free_ocb(sdev, sdev->last_ocb);
2769 }
2770 sdev->last_ocb = ocb;
2771 if (next != NULL &&
2772 sbp_status->src == SRC_NO_NEXT)
2773 sbp_doorbell(sdev);
2774 }
2775 break;
2776 } else
2777 order ++;
2778 }
2779 SBP_DEBUG(0)
2780 if (ocb && order > 0) {
2781 device_printf(sdev->target->sbp->fd.dev,
2782 "%s:%s unordered execution order:%d\n",
2783 __func__, sdev->bustgtlun, order);
2784 }
2785 END_DEBUG
2786 return (ocb);
2787 }
2788
2789 static struct sbp_ocb *
sbp_enqueue_ocb(struct sbp_dev * sdev,struct sbp_ocb * ocb)2790 sbp_enqueue_ocb(struct sbp_dev *sdev, struct sbp_ocb *ocb)
2791 {
2792 struct sbp_ocb *prev, *prev2;
2793
2794 SBP_LOCK_ASSERT(sdev->target->sbp);
2795 SBP_DEBUG(1)
2796 device_printf(sdev->target->sbp->fd.dev,
2797 #if defined(__DragonFly__) || __FreeBSD_version < 500000
2798 "%s:%s 0x%08x\n", __func__, sdev->bustgtlun, ocb->bus_addr);
2799 #else
2800 "%s:%s 0x%08jx\n", __func__, sdev->bustgtlun, (uintmax_t)ocb->bus_addr);
2801 #endif
2802 END_DEBUG
2803 prev2 = prev = STAILQ_LAST(&sdev->ocbs, sbp_ocb, ocb);
2804 STAILQ_INSERT_TAIL(&sdev->ocbs, ocb, ocb);
2805
2806 if (ocb->ccb != NULL) {
2807 callout_reset_sbt(&ocb->timer,
2808 SBT_1MS * ocb->ccb->ccb_h.timeout, 0, sbp_timeout,
2809 ocb, 0);
2810 }
2811
2812 if (use_doorbell && prev == NULL)
2813 prev2 = sdev->last_ocb;
2814
2815 if (prev2 != NULL && (ocb->sdev->flags & ORB_LINK_DEAD) == 0) {
2816 SBP_DEBUG(1)
2817 #if defined(__DragonFly__) || __FreeBSD_version < 500000
2818 printf("linking chain 0x%x -> 0x%x\n",
2819 prev2->bus_addr, ocb->bus_addr);
2820 #else
2821 printf("linking chain 0x%jx -> 0x%jx\n",
2822 (uintmax_t)prev2->bus_addr, (uintmax_t)ocb->bus_addr);
2823 #endif
2824 END_DEBUG
2825 /*
2826 * Suppress compiler optimization so that orb[1] must be written first.
2827 * XXX We may need an explicit memory barrier for other architectures
2828 * other than i386/amd64.
2829 */
2830 *(volatile uint32_t *)&prev2->orb[1] = htonl(ocb->bus_addr);
2831 *(volatile uint32_t *)&prev2->orb[0] = 0;
2832 }
2833
2834 return prev;
2835 }
2836
2837 static struct sbp_ocb *
sbp_get_ocb(struct sbp_dev * sdev)2838 sbp_get_ocb(struct sbp_dev *sdev)
2839 {
2840 struct sbp_ocb *ocb;
2841
2842 SBP_LOCK_ASSERT(sdev->target->sbp);
2843 ocb = STAILQ_FIRST(&sdev->free_ocbs);
2844 if (ocb == NULL) {
2845 sdev->flags |= ORB_SHORTAGE;
2846 printf("ocb shortage!!!\n");
2847 return NULL;
2848 }
2849 STAILQ_REMOVE_HEAD(&sdev->free_ocbs, ocb);
2850 ocb->ccb = NULL;
2851 return (ocb);
2852 }
2853
2854 static void
sbp_free_ocb(struct sbp_dev * sdev,struct sbp_ocb * ocb)2855 sbp_free_ocb(struct sbp_dev *sdev, struct sbp_ocb *ocb)
2856 {
2857 ocb->flags = 0;
2858 ocb->ccb = NULL;
2859
2860 SBP_LOCK_ASSERT(sdev->target->sbp);
2861 STAILQ_INSERT_TAIL(&sdev->free_ocbs, ocb, ocb);
2862 if ((sdev->flags & ORB_SHORTAGE) != 0) {
2863 int count;
2864
2865 sdev->flags &= ~ORB_SHORTAGE;
2866 count = sdev->freeze;
2867 sdev->freeze = 0;
2868 xpt_release_devq(sdev->path, count, TRUE);
2869 }
2870 }
2871
2872 static void
sbp_abort_ocb(struct sbp_ocb * ocb,int status)2873 sbp_abort_ocb(struct sbp_ocb *ocb, int status)
2874 {
2875 struct sbp_dev *sdev;
2876
2877 sdev = ocb->sdev;
2878 SBP_LOCK_ASSERT(sdev->target->sbp);
2879 SBP_DEBUG(0)
2880 device_printf(sdev->target->sbp->fd.dev,
2881 #if defined(__DragonFly__) || __FreeBSD_version < 500000
2882 "%s:%s 0x%x\n", __func__, sdev->bustgtlun, ocb->bus_addr);
2883 #else
2884 "%s:%s 0x%jx\n", __func__, sdev->bustgtlun, (uintmax_t)ocb->bus_addr);
2885 #endif
2886 END_DEBUG
2887 SBP_DEBUG(1)
2888 if (ocb->ccb != NULL)
2889 sbp_print_scsi_cmd(ocb);
2890 END_DEBUG
2891 if (ntohl(ocb->orb[4]) & 0xffff) {
2892 bus_dmamap_sync(sdev->target->sbp->dmat, ocb->dmamap,
2893 (ntohl(ocb->orb[4]) & ORB_CMD_IN) ?
2894 BUS_DMASYNC_POSTREAD : BUS_DMASYNC_POSTWRITE);
2895 bus_dmamap_unload(sdev->target->sbp->dmat, ocb->dmamap);
2896 }
2897 if (ocb->ccb != NULL) {
2898 callout_stop(&ocb->timer);
2899 ocb->ccb->ccb_h.status = status;
2900 xpt_done(ocb->ccb);
2901 }
2902 sbp_free_ocb(sdev, ocb);
2903 }
2904
2905 static void
sbp_abort_all_ocbs(struct sbp_dev * sdev,int status)2906 sbp_abort_all_ocbs(struct sbp_dev *sdev, int status)
2907 {
2908 struct sbp_ocb *ocb, *next;
2909 STAILQ_HEAD(, sbp_ocb) temp;
2910
2911 STAILQ_INIT(&temp);
2912 SBP_LOCK_ASSERT(sdev->target->sbp);
2913 STAILQ_CONCAT(&temp, &sdev->ocbs);
2914 STAILQ_INIT(&sdev->ocbs);
2915
2916 STAILQ_FOREACH_SAFE(ocb, &temp, ocb, next) {
2917 sbp_abort_ocb(ocb, status);
2918 }
2919 if (sdev->last_ocb != NULL) {
2920 sbp_free_ocb(sdev, sdev->last_ocb);
2921 sdev->last_ocb = NULL;
2922 }
2923 }
2924
2925 static devclass_t sbp_devclass;
2926
2927 static device_method_t sbp_methods[] = {
2928 /* device interface */
2929 DEVMETHOD(device_identify, sbp_identify),
2930 DEVMETHOD(device_probe, sbp_probe),
2931 DEVMETHOD(device_attach, sbp_attach),
2932 DEVMETHOD(device_detach, sbp_detach),
2933 DEVMETHOD(device_shutdown, sbp_shutdown),
2934
2935 { 0, 0 }
2936 };
2937
2938 static driver_t sbp_driver = {
2939 "sbp",
2940 sbp_methods,
2941 sizeof(struct sbp_softc),
2942 };
2943 #ifdef __DragonFly__
2944 DECLARE_DUMMY_MODULE(sbp);
2945 #endif
2946 DRIVER_MODULE(sbp, firewire, sbp_driver, sbp_devclass, 0, 0);
2947 MODULE_VERSION(sbp, 1);
2948 MODULE_DEPEND(sbp, firewire, 1, 1, 1);
2949 MODULE_DEPEND(sbp, cam, 1, 1, 1);
2950